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/cpufeature.h> 10 #include <linux/dmi.h> 11 #include <linux/module.h> 12 #include <linux/usb.h> 13 #include <linux/usb/quirks.h> 14 #include <linux/firmware.h> 15 #include <linux/iopoll.h> 16 #include <linux/of_device.h> 17 #include <linux/of_irq.h> 18 #include <linux/suspend.h> 19 #include <linux/gpio/consumer.h> 20 #include <linux/debugfs.h> 21 #include <linux/unaligned.h> 22 23 #include <net/bluetooth/bluetooth.h> 24 #include <net/bluetooth/hci_core.h> 25 #include <net/bluetooth/hci_drv.h> 26 27 #include "btintel.h" 28 #include "btbcm.h" 29 #include "btrtl.h" 30 #include "btmtk.h" 31 32 #define VERSION "0.8" 33 34 static bool disable_scofix; 35 static bool force_scofix; 36 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 37 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 38 static bool reset = true; 39 40 static struct usb_driver btusb_driver; 41 42 #define BTUSB_IGNORE BIT(0) 43 #define BTUSB_DIGIANSWER BIT(1) 44 #define BTUSB_CSR BIT(2) 45 #define BTUSB_SNIFFER BIT(3) 46 #define BTUSB_BCM92035 BIT(4) 47 #define BTUSB_BROKEN_ISOC BIT(5) 48 #define BTUSB_WRONG_SCO_MTU BIT(6) 49 #define BTUSB_ATH3012 BIT(7) 50 #define BTUSB_INTEL_COMBINED BIT(8) 51 #define BTUSB_INTEL_BOOT BIT(9) 52 #define BTUSB_BCM_PATCHRAM BIT(10) 53 #define BTUSB_MARVELL BIT(11) 54 #define BTUSB_SWAVE BIT(12) 55 #define BTUSB_AMP BIT(13) 56 #define BTUSB_QCA_ROME BIT(14) 57 #define BTUSB_BCM_APPLE BIT(15) 58 #define BTUSB_REALTEK BIT(16) 59 #define BTUSB_BCM2045 BIT(17) 60 #define BTUSB_IFNUM_2 BIT(18) 61 #define BTUSB_CW6622 BIT(19) 62 #define BTUSB_MEDIATEK BIT(20) 63 #define BTUSB_WIDEBAND_SPEECH BIT(21) 64 #define BTUSB_INVALID_LE_STATES BIT(22) 65 #define BTUSB_QCA_WCN6855 BIT(23) 66 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 67 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 68 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 69 #define BTUSB_ACTIONS_SEMI BIT(27) 70 #define BTUSB_BARROT BIT(28) 71 #define BTUSB_BROKEN_EXT_SCAN BIT(29) 72 73 static const struct usb_device_id btusb_table[] = { 74 /* Generic Bluetooth USB device */ 75 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 76 77 /* Generic Bluetooth AMP device */ 78 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 79 80 /* Generic Bluetooth USB interface */ 81 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 82 83 /* Apple-specific (Broadcom) devices */ 84 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 85 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 86 87 /* MediaTek MT76x0E */ 88 { USB_DEVICE(0x0e8d, 0x763f) }, 89 90 /* Broadcom SoftSailing reporting vendor specific */ 91 { USB_DEVICE(0x0a5c, 0x21e1) }, 92 93 /* Apple MacBookPro 7,1 */ 94 { USB_DEVICE(0x05ac, 0x8213) }, 95 96 /* Apple iMac11,1 */ 97 { USB_DEVICE(0x05ac, 0x8215) }, 98 99 /* Apple MacBookPro6,2 */ 100 { USB_DEVICE(0x05ac, 0x8218) }, 101 102 /* Apple MacBookAir3,1, MacBookAir3,2 */ 103 { USB_DEVICE(0x05ac, 0x821b) }, 104 105 /* Apple MacBookAir4,1 */ 106 { USB_DEVICE(0x05ac, 0x821f) }, 107 108 /* Apple MacBookPro8,2 */ 109 { USB_DEVICE(0x05ac, 0x821a) }, 110 111 /* Apple MacMini5,1 */ 112 { USB_DEVICE(0x05ac, 0x8281) }, 113 114 /* AVM BlueFRITZ! USB v2.0 */ 115 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 116 117 /* Bluetooth Ultraport Module from IBM */ 118 { USB_DEVICE(0x04bf, 0x030a) }, 119 120 /* ALPS Modules with non-standard id */ 121 { USB_DEVICE(0x044e, 0x3001) }, 122 { USB_DEVICE(0x044e, 0x3002) }, 123 124 /* Ericsson with non-standard id */ 125 { USB_DEVICE(0x0bdb, 0x1002) }, 126 127 /* Canyon CN-BTU1 with HID interfaces */ 128 { USB_DEVICE(0x0c10, 0x0000) }, 129 130 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 131 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Broadcom BCM920703 (HTC Vive) */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Foxconn - Hon Hai */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Lite-On Technology - Broadcom based */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* Broadcom devices with vendor specific id */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* ASUSTek Computer - Broadcom based */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* Belkin F8065bf - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* IMC Networks - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* Dell Computer - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Toshiba Corp - Broadcom based */ 170 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 171 .driver_info = BTUSB_BCM_PATCHRAM }, 172 173 /* Intel Bluetooth USB Bootloader (RAM module) */ 174 { USB_DEVICE(0x8087, 0x0a5a), 175 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 176 177 { } /* Terminating entry */ 178 }; 179 180 MODULE_DEVICE_TABLE(usb, btusb_table); 181 182 static const struct usb_device_id quirks_table[] = { 183 /* CSR BlueCore devices */ 184 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 185 186 /* Broadcom BCM2033 without firmware */ 187 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 188 189 /* Broadcom BCM2045 devices */ 190 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 191 192 /* Atheros 3011 with sflash firmware */ 193 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 196 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 197 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 198 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 199 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 200 201 /* Atheros AR9285 Malbec with sflash firmware */ 202 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 203 204 /* Atheros 3012 with sflash firmware */ 205 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 255 256 /* Atheros AR5BBU12 with sflash firmware */ 257 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 258 259 /* Atheros AR5BBU12 with sflash firmware */ 260 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 261 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 262 263 /* QCA ROME chipset */ 264 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 265 BTUSB_WIDEBAND_SPEECH }, 266 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 267 BTUSB_WIDEBAND_SPEECH }, 268 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 269 BTUSB_WIDEBAND_SPEECH }, 270 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 271 BTUSB_WIDEBAND_SPEECH }, 272 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 273 BTUSB_WIDEBAND_SPEECH }, 274 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 275 BTUSB_WIDEBAND_SPEECH }, 276 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 299 BTUSB_WIDEBAND_SPEECH }, 300 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 301 BTUSB_WIDEBAND_SPEECH }, 302 { USB_DEVICE(0x13d3, 0x3503), .driver_info = BTUSB_QCA_ROME | 303 BTUSB_WIDEBAND_SPEECH }, 304 305 /* QCA WCN6855 chipset */ 306 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 307 BTUSB_WIDEBAND_SPEECH }, 308 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 309 BTUSB_WIDEBAND_SPEECH }, 310 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 311 BTUSB_WIDEBAND_SPEECH }, 312 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 313 BTUSB_WIDEBAND_SPEECH }, 314 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 315 BTUSB_WIDEBAND_SPEECH }, 316 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 317 BTUSB_WIDEBAND_SPEECH }, 318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 319 BTUSB_WIDEBAND_SPEECH }, 320 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 321 BTUSB_WIDEBAND_SPEECH }, 322 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 323 BTUSB_WIDEBAND_SPEECH }, 324 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH }, 326 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 327 BTUSB_WIDEBAND_SPEECH }, 328 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 329 BTUSB_WIDEBAND_SPEECH }, 330 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH }, 332 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 333 BTUSB_WIDEBAND_SPEECH }, 334 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 335 BTUSB_WIDEBAND_SPEECH }, 336 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH }, 338 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 339 BTUSB_WIDEBAND_SPEECH }, 340 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 341 BTUSB_WIDEBAND_SPEECH }, 342 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH }, 344 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 345 BTUSB_WIDEBAND_SPEECH }, 346 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 347 BTUSB_WIDEBAND_SPEECH }, 348 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH }, 350 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 351 BTUSB_WIDEBAND_SPEECH }, 352 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 353 BTUSB_WIDEBAND_SPEECH }, 354 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH }, 356 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 357 BTUSB_WIDEBAND_SPEECH }, 358 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 359 BTUSB_WIDEBAND_SPEECH }, 360 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH }, 362 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 363 BTUSB_WIDEBAND_SPEECH }, 364 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 365 BTUSB_WIDEBAND_SPEECH }, 366 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH }, 368 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 369 BTUSB_WIDEBAND_SPEECH }, 370 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 371 BTUSB_WIDEBAND_SPEECH }, 372 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH }, 374 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 375 BTUSB_WIDEBAND_SPEECH }, 376 { USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 | 377 BTUSB_WIDEBAND_SPEECH }, 378 379 /* QCA WCN785x chipset */ 380 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 381 BTUSB_WIDEBAND_SPEECH }, 382 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 | 383 BTUSB_WIDEBAND_SPEECH }, 384 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH }, 386 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 | 387 BTUSB_WIDEBAND_SPEECH }, 388 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 | 389 BTUSB_WIDEBAND_SPEECH }, 390 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH }, 392 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 | 393 BTUSB_WIDEBAND_SPEECH }, 394 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 | 395 BTUSB_WIDEBAND_SPEECH }, 396 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH }, 398 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 | 399 BTUSB_WIDEBAND_SPEECH }, 400 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 | 401 BTUSB_WIDEBAND_SPEECH }, 402 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH }, 404 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 | 405 BTUSB_WIDEBAND_SPEECH }, 406 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 | 407 BTUSB_WIDEBAND_SPEECH }, 408 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 | 409 BTUSB_WIDEBAND_SPEECH }, 410 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 | 411 BTUSB_WIDEBAND_SPEECH }, 412 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 | 413 BTUSB_WIDEBAND_SPEECH }, 414 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 | 415 BTUSB_WIDEBAND_SPEECH }, 416 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 | 417 BTUSB_WIDEBAND_SPEECH }, 418 419 /* Broadcom BCM2035 */ 420 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 421 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 424 /* Broadcom BCM2045 */ 425 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 426 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 427 428 /* IBM/Lenovo ThinkPad with Broadcom chip */ 429 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 430 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 431 432 /* HP laptop with Broadcom chip */ 433 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 434 435 /* Dell laptop with Broadcom chip */ 436 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 438 /* Dell Wireless 370 and 410 devices */ 439 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 441 442 /* Belkin F8T012 and F8T013 devices */ 443 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 444 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 445 446 /* Asus WL-BTD202 device */ 447 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 448 449 /* Kensington Bluetooth USB adapter */ 450 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 451 452 /* RTX Telecom based adapters with buggy SCO support */ 453 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 454 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 455 456 /* CONWISE Technology based adapters with buggy SCO support */ 457 { USB_DEVICE(0x0e5e, 0x6622), 458 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 459 460 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 461 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 462 463 /* Digianswer devices */ 464 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 465 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 466 467 /* CSR BlueCore Bluetooth Sniffer */ 468 { USB_DEVICE(0x0a12, 0x0002), 469 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 470 471 /* Frontline ComProbe Bluetooth Sniffer */ 472 { USB_DEVICE(0x16d3, 0x0002), 473 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 474 475 /* Marvell Bluetooth devices */ 476 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 477 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 478 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 479 480 /* Intel Bluetooth devices */ 481 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 482 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 483 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 484 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 485 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 486 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 487 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 488 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 489 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 490 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED }, 491 { USB_DEVICE(0x8087, 0x0040), .driver_info = BTUSB_INTEL_COMBINED }, /* Lizard Peak 2 */ 492 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 493 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 494 BTUSB_INTEL_NO_WBS_SUPPORT | 495 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 496 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 497 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 498 BTUSB_INTEL_NO_WBS_SUPPORT | 499 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 500 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 501 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 502 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 503 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 504 505 /* Other Intel Bluetooth devices */ 506 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 507 .driver_info = BTUSB_IGNORE }, 508 509 /* Realtek 8821CE Bluetooth devices */ 510 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 511 BTUSB_WIDEBAND_SPEECH }, 512 { USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK | 513 BTUSB_WIDEBAND_SPEECH }, 514 515 /* Realtek 8822CE Bluetooth devices */ 516 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 517 BTUSB_WIDEBAND_SPEECH }, 518 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 519 BTUSB_WIDEBAND_SPEECH }, 520 521 /* Realtek 8822CU Bluetooth devices */ 522 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 523 BTUSB_WIDEBAND_SPEECH }, 524 525 /* Realtek 8851BE Bluetooth devices */ 526 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK }, 527 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, 528 { USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK }, 529 { USB_DEVICE(0x0489, 0xe112), .driver_info = BTUSB_REALTEK | 530 BTUSB_WIDEBAND_SPEECH }, 531 532 /* Realtek 8851BU Bluetooth devices */ 533 { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK | 534 BTUSB_WIDEBAND_SPEECH }, 535 { USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK | 536 BTUSB_WIDEBAND_SPEECH }, 537 { USB_DEVICE(0x7392, 0xe611), .driver_info = BTUSB_REALTEK | 538 BTUSB_WIDEBAND_SPEECH }, 539 { USB_DEVICE(0x2c4e, 0x0128), .driver_info = BTUSB_REALTEK | 540 BTUSB_WIDEBAND_SPEECH }, 541 542 /* Realtek 8852AE Bluetooth devices */ 543 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 544 BTUSB_WIDEBAND_SPEECH }, 545 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 546 BTUSB_WIDEBAND_SPEECH }, 547 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 548 BTUSB_WIDEBAND_SPEECH }, 549 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 550 BTUSB_WIDEBAND_SPEECH }, 551 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 552 BTUSB_WIDEBAND_SPEECH }, 553 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 554 BTUSB_WIDEBAND_SPEECH }, 555 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 556 BTUSB_WIDEBAND_SPEECH }, 557 558 /* Realtek 8852CE Bluetooth devices */ 559 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 560 BTUSB_WIDEBAND_SPEECH }, 561 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 562 BTUSB_WIDEBAND_SPEECH }, 563 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 564 BTUSB_WIDEBAND_SPEECH }, 565 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 566 BTUSB_WIDEBAND_SPEECH }, 567 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 568 BTUSB_WIDEBAND_SPEECH }, 569 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 570 BTUSB_WIDEBAND_SPEECH }, 571 { USB_DEVICE(0x13d3, 0x3612), .driver_info = BTUSB_REALTEK | 572 BTUSB_WIDEBAND_SPEECH }, 573 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 574 BTUSB_WIDEBAND_SPEECH }, 575 576 /* Realtek 8852BE Bluetooth devices */ 577 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 578 BTUSB_WIDEBAND_SPEECH }, 579 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 580 BTUSB_WIDEBAND_SPEECH }, 581 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 582 BTUSB_WIDEBAND_SPEECH }, 583 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 584 BTUSB_WIDEBAND_SPEECH }, 585 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 586 BTUSB_WIDEBAND_SPEECH }, 587 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 588 BTUSB_WIDEBAND_SPEECH }, 589 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 590 BTUSB_WIDEBAND_SPEECH }, 591 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 592 BTUSB_WIDEBAND_SPEECH }, 593 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 594 BTUSB_WIDEBAND_SPEECH }, 595 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 596 BTUSB_WIDEBAND_SPEECH }, 597 598 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 599 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 600 BTUSB_WIDEBAND_SPEECH }, 601 { USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK | 602 BTUSB_WIDEBAND_SPEECH }, 603 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK | 604 BTUSB_WIDEBAND_SPEECH }, 605 { USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK | 606 BTUSB_WIDEBAND_SPEECH }, 607 608 /* Realtek 8922AE Bluetooth devices */ 609 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK | 610 BTUSB_WIDEBAND_SPEECH }, 611 { USB_DEVICE(0x0bda, 0xd922), .driver_info = BTUSB_REALTEK | 612 BTUSB_WIDEBAND_SPEECH }, 613 { USB_DEVICE(0x0bda, 0xd923), .driver_info = BTUSB_REALTEK | 614 BTUSB_WIDEBAND_SPEECH }, 615 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK | 616 BTUSB_WIDEBAND_SPEECH }, 617 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK | 618 BTUSB_WIDEBAND_SPEECH }, 619 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK | 620 BTUSB_WIDEBAND_SPEECH }, 621 622 /* Realtek 8761BU Bluetooth devices */ 623 { USB_DEVICE(0x0bda, 0xa728), .driver_info = BTUSB_REALTEK | 624 BTUSB_BROKEN_EXT_SCAN }, 625 626 /* Realtek Bluetooth devices */ 627 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 628 .driver_info = BTUSB_REALTEK }, 629 630 /* MediaTek Bluetooth devices */ 631 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 632 .driver_info = BTUSB_MEDIATEK | 633 BTUSB_WIDEBAND_SPEECH }, 634 635 /* Additional MediaTek MT7615E Bluetooth devices */ 636 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 637 638 /* Additional MediaTek MT7663 Bluetooth devices */ 639 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 640 BTUSB_WIDEBAND_SPEECH }, 641 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 642 BTUSB_WIDEBAND_SPEECH }, 643 644 /* Additional MediaTek MT7668 Bluetooth devices */ 645 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 646 BTUSB_WIDEBAND_SPEECH }, 647 648 /* Additional MediaTek MT7920 Bluetooth devices */ 649 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK | 650 BTUSB_WIDEBAND_SPEECH }, 651 { USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK | 652 BTUSB_WIDEBAND_SPEECH }, 653 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK | 654 BTUSB_WIDEBAND_SPEECH }, 655 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK | 656 BTUSB_WIDEBAND_SPEECH }, 657 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK | 658 BTUSB_WIDEBAND_SPEECH }, 659 { USB_DEVICE(0x0489, 0xe158), .driver_info = BTUSB_MEDIATEK | 660 BTUSB_WIDEBAND_SPEECH }, 661 662 /* Additional MediaTek MT7921 Bluetooth devices */ 663 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 664 BTUSB_WIDEBAND_SPEECH }, 665 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 666 BTUSB_WIDEBAND_SPEECH }, 667 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 668 BTUSB_WIDEBAND_SPEECH }, 669 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 670 BTUSB_WIDEBAND_SPEECH }, 671 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 672 BTUSB_WIDEBAND_SPEECH }, 673 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 674 BTUSB_WIDEBAND_SPEECH }, 675 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 676 BTUSB_WIDEBAND_SPEECH }, 677 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 678 BTUSB_WIDEBAND_SPEECH }, 679 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 680 BTUSB_WIDEBAND_SPEECH }, 681 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK | 682 BTUSB_WIDEBAND_SPEECH }, 683 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 684 BTUSB_WIDEBAND_SPEECH }, 685 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 686 BTUSB_WIDEBAND_SPEECH }, 687 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 688 BTUSB_WIDEBAND_SPEECH }, 689 /* MediaTek MT7902 Bluetooth devices */ 690 { USB_DEVICE(0x0489, 0xe156), .driver_info = BTUSB_MEDIATEK | 691 BTUSB_WIDEBAND_SPEECH }, 692 { USB_DEVICE(0x0e8d, 0x1ede), .driver_info = BTUSB_MEDIATEK | 693 BTUSB_WIDEBAND_SPEECH }, 694 { USB_DEVICE(0x13d3, 0x3579), .driver_info = BTUSB_MEDIATEK | 695 BTUSB_WIDEBAND_SPEECH }, 696 { USB_DEVICE(0x13d3, 0x3580), .driver_info = BTUSB_MEDIATEK | 697 BTUSB_WIDEBAND_SPEECH }, 698 { USB_DEVICE(0x13d3, 0x3594), .driver_info = BTUSB_MEDIATEK | 699 BTUSB_WIDEBAND_SPEECH }, 700 { USB_DEVICE(0x13d3, 0x3596), .driver_info = BTUSB_MEDIATEK | 701 BTUSB_WIDEBAND_SPEECH }, 702 /* MediaTek MT7922 Bluetooth devices */ 703 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 704 BTUSB_WIDEBAND_SPEECH }, 705 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK | 706 BTUSB_WIDEBAND_SPEECH }, 707 708 /* MediaTek MT7922A Bluetooth devices */ 709 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 710 BTUSB_WIDEBAND_SPEECH }, 711 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 712 BTUSB_WIDEBAND_SPEECH }, 713 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 714 BTUSB_WIDEBAND_SPEECH }, 715 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 716 BTUSB_WIDEBAND_SPEECH }, 717 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 718 BTUSB_WIDEBAND_SPEECH }, 719 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 720 BTUSB_WIDEBAND_SPEECH }, 721 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 722 BTUSB_WIDEBAND_SPEECH }, 723 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 724 BTUSB_WIDEBAND_SPEECH }, 725 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 726 BTUSB_WIDEBAND_SPEECH }, 727 { USB_DEVICE(0x0489, 0xe11d), .driver_info = BTUSB_MEDIATEK | 728 BTUSB_WIDEBAND_SPEECH }, 729 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK | 730 BTUSB_WIDEBAND_SPEECH }, 731 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK | 732 BTUSB_WIDEBAND_SPEECH }, 733 { USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK | 734 BTUSB_WIDEBAND_SPEECH }, 735 { USB_DEVICE(0x0489, 0xe174), .driver_info = BTUSB_MEDIATEK | 736 BTUSB_WIDEBAND_SPEECH }, 737 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 738 BTUSB_WIDEBAND_SPEECH }, 739 { USB_DEVICE(0x04ca, 0x3807), .driver_info = BTUSB_MEDIATEK | 740 BTUSB_WIDEBAND_SPEECH }, 741 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 742 BTUSB_WIDEBAND_SPEECH }, 743 { USB_DEVICE(0x0e8d, 0x223c), .driver_info = BTUSB_MEDIATEK | 744 BTUSB_WIDEBAND_SPEECH }, 745 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 746 BTUSB_WIDEBAND_SPEECH }, 747 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK | 748 BTUSB_WIDEBAND_SPEECH }, 749 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 750 BTUSB_WIDEBAND_SPEECH }, 751 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 752 BTUSB_WIDEBAND_SPEECH }, 753 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 754 BTUSB_WIDEBAND_SPEECH }, 755 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 756 BTUSB_WIDEBAND_SPEECH }, 757 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK | 758 BTUSB_WIDEBAND_SPEECH }, 759 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 760 BTUSB_WIDEBAND_SPEECH }, 761 762 /* Additional MediaTek MT7925 Bluetooth devices */ 763 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 764 BTUSB_WIDEBAND_SPEECH }, 765 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 766 BTUSB_WIDEBAND_SPEECH }, 767 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK | 768 BTUSB_WIDEBAND_SPEECH }, 769 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK | 770 BTUSB_WIDEBAND_SPEECH }, 771 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK | 772 BTUSB_WIDEBAND_SPEECH }, 773 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK | 774 BTUSB_WIDEBAND_SPEECH }, 775 { USB_DEVICE(0x0489, 0xe13a), .driver_info = BTUSB_MEDIATEK | 776 BTUSB_WIDEBAND_SPEECH }, 777 { USB_DEVICE(0x0489, 0xe0fa), .driver_info = BTUSB_MEDIATEK | 778 BTUSB_WIDEBAND_SPEECH }, 779 { USB_DEVICE(0x0489, 0xe10f), .driver_info = BTUSB_MEDIATEK | 780 BTUSB_WIDEBAND_SPEECH }, 781 { USB_DEVICE(0x0489, 0xe110), .driver_info = BTUSB_MEDIATEK | 782 BTUSB_WIDEBAND_SPEECH }, 783 { USB_DEVICE(0x0489, 0xe116), .driver_info = BTUSB_MEDIATEK | 784 BTUSB_WIDEBAND_SPEECH }, 785 { USB_DEVICE(0x13d3, 0x3588), .driver_info = BTUSB_MEDIATEK | 786 BTUSB_WIDEBAND_SPEECH }, 787 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK | 788 BTUSB_WIDEBAND_SPEECH }, 789 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK | 790 BTUSB_WIDEBAND_SPEECH }, 791 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK | 792 BTUSB_WIDEBAND_SPEECH }, 793 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK | 794 BTUSB_WIDEBAND_SPEECH }, 795 { USB_DEVICE(0x0e8d, 0x8c38), .driver_info = BTUSB_MEDIATEK | 796 BTUSB_WIDEBAND_SPEECH }, 797 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 798 BTUSB_WIDEBAND_SPEECH }, 799 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 800 BTUSB_WIDEBAND_SPEECH }, 801 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK | 802 BTUSB_WIDEBAND_SPEECH }, 803 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK | 804 BTUSB_WIDEBAND_SPEECH }, 805 { USB_DEVICE(0x13d3, 0x3609), .driver_info = BTUSB_MEDIATEK | 806 BTUSB_WIDEBAND_SPEECH }, 807 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK | 808 BTUSB_WIDEBAND_SPEECH }, 809 { USB_DEVICE(0x13d3, 0x3625), .driver_info = BTUSB_MEDIATEK | 810 BTUSB_WIDEBAND_SPEECH }, 811 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK | 812 BTUSB_WIDEBAND_SPEECH }, 813 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK | 814 BTUSB_WIDEBAND_SPEECH }, 815 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK | 816 BTUSB_WIDEBAND_SPEECH }, 817 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK | 818 BTUSB_WIDEBAND_SPEECH }, 819 820 /* Additional Realtek 8723AE Bluetooth devices */ 821 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 822 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 823 824 /* Additional Realtek 8723BE Bluetooth devices */ 825 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 826 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 827 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 828 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 829 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 830 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 831 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 832 833 /* Additional Realtek 8723BU Bluetooth devices */ 834 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 835 { USB_DEVICE(0x2c0a, 0x8761), .driver_info = BTUSB_REALTEK }, 836 837 /* Additional Realtek 8723DE Bluetooth devices */ 838 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 839 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 840 841 /* Additional Realtek 8761BUV Bluetooth devices */ 842 { USB_DEVICE(0x2c4e, 0x0115), .driver_info = BTUSB_REALTEK | 843 BTUSB_WIDEBAND_SPEECH }, 844 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 845 BTUSB_WIDEBAND_SPEECH }, 846 { USB_DEVICE(0x2357, 0x0607), .driver_info = BTUSB_REALTEK | 847 BTUSB_WIDEBAND_SPEECH }, 848 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 849 BTUSB_WIDEBAND_SPEECH }, 850 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 851 BTUSB_WIDEBAND_SPEECH }, 852 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 853 BTUSB_WIDEBAND_SPEECH }, 854 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 855 BTUSB_WIDEBAND_SPEECH }, 856 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 857 BTUSB_WIDEBAND_SPEECH }, 858 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 859 BTUSB_WIDEBAND_SPEECH }, 860 { USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK | 861 BTUSB_WIDEBAND_SPEECH }, 862 { USB_DEVICE(0x37ad, 0x0600), .driver_info = BTUSB_REALTEK | 863 BTUSB_WIDEBAND_SPEECH }, 864 865 /* Additional Realtek 8761CU Bluetooth devices */ 866 { USB_DEVICE(0x0b05, 0x1bef), .driver_info = BTUSB_REALTEK | 867 BTUSB_WIDEBAND_SPEECH }, 868 { USB_DEVICE(0x0b05, 0x1d70), .driver_info = BTUSB_REALTEK | 869 BTUSB_WIDEBAND_SPEECH }, 870 871 /* Additional Realtek 8821AE Bluetooth devices */ 872 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 873 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 874 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 875 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 876 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 877 878 /* Additional Realtek 8822BE Bluetooth devices */ 879 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 880 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 881 882 /* Additional Realtek 8822CE Bluetooth devices */ 883 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 884 BTUSB_WIDEBAND_SPEECH }, 885 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 886 BTUSB_WIDEBAND_SPEECH }, 887 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 888 BTUSB_WIDEBAND_SPEECH }, 889 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 890 BTUSB_WIDEBAND_SPEECH }, 891 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 892 BTUSB_WIDEBAND_SPEECH }, 893 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 894 BTUSB_WIDEBAND_SPEECH }, 895 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 896 BTUSB_WIDEBAND_SPEECH }, 897 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 898 BTUSB_WIDEBAND_SPEECH }, 899 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 900 BTUSB_WIDEBAND_SPEECH }, 901 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 902 BTUSB_WIDEBAND_SPEECH }, 903 { USB_DEVICE(0x1357, 0xc123), .driver_info = BTUSB_REALTEK | 904 BTUSB_WIDEBAND_SPEECH }, 905 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 906 BTUSB_WIDEBAND_SPEECH }, 907 908 /* Barrot Technology Bluetooth devices */ 909 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT }, 910 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT }, 911 912 /* Actions Semiconductor ATS2851 based devices */ 913 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 914 915 /* Silicon Wave based devices */ 916 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 917 918 { } /* Terminating entry */ 919 }; 920 921 /* The Bluetooth USB module build into some devices needs to be reset on resume, 922 * this is a problem with the platform (likely shutting off all power) not with 923 * the module itself. So we use a DMI list to match known broken platforms. 924 */ 925 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 926 { 927 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 928 .matches = { 929 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 930 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 931 }, 932 }, 933 { 934 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 935 .matches = { 936 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 937 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 938 }, 939 }, 940 { 941 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 942 .matches = { 943 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 944 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 945 }, 946 }, 947 {} 948 }; 949 950 struct qca_dump_info { 951 /* fields for dump collection */ 952 u16 id_vendor; 953 u16 id_product; 954 u32 fw_version; 955 u32 controller_id; 956 u32 ram_dump_size; 957 u16 ram_dump_seqno; 958 }; 959 960 struct btqca_data { 961 struct qca_dump_info qca_dump; 962 }; 963 964 #define BTUSB_MAX_ISOC_FRAMES 10 965 966 #define BTUSB_INTR_RUNNING 0 967 #define BTUSB_BULK_RUNNING 1 968 #define BTUSB_ISOC_RUNNING 2 969 #define BTUSB_SUSPENDING 3 970 #define BTUSB_DID_ISO_RESUME 4 971 #define BTUSB_BOOTLOADER 5 972 #define BTUSB_DOWNLOADING 6 973 #define BTUSB_FIRMWARE_LOADED 7 974 #define BTUSB_FIRMWARE_FAILED 8 975 #define BTUSB_BOOTING 9 976 #define BTUSB_DIAG_RUNNING 10 977 #define BTUSB_OOB_WAKE_ENABLED 11 978 #define BTUSB_HW_RESET_ACTIVE 12 979 #define BTUSB_TX_WAIT_VND_EVT 13 980 #define BTUSB_WAKEUP_AUTOSUSPEND 14 981 #define BTUSB_USE_ALT3_FOR_WBS 15 982 #define BTUSB_ALT6_CONTINUOUS_TX 16 983 #define BTUSB_HW_SSR_ACTIVE 17 984 #define BTUSB_WAKEUP_BROKEN 18 985 #define BTUSB_RESET 19 986 987 struct btusb_data { 988 struct hci_dev *hdev; 989 struct usb_device *udev; 990 struct usb_interface *intf; 991 struct usb_interface *isoc; 992 struct usb_interface *diag; 993 unsigned isoc_ifnum; 994 995 unsigned long flags; 996 997 bool poll_sync; 998 int intr_interval; 999 struct work_struct work; 1000 struct work_struct waker; 1001 struct delayed_work rx_work; 1002 1003 struct sk_buff_head acl_q; 1004 1005 struct usb_anchor deferred; 1006 struct usb_anchor tx_anchor; 1007 int tx_in_flight; 1008 spinlock_t txlock; 1009 1010 struct usb_anchor intr_anchor; 1011 struct usb_anchor bulk_anchor; 1012 struct usb_anchor isoc_anchor; 1013 struct usb_anchor diag_anchor; 1014 struct usb_anchor ctrl_anchor; 1015 spinlock_t rxlock; 1016 1017 struct sk_buff *evt_skb; 1018 struct sk_buff *acl_skb; 1019 struct sk_buff *sco_skb; 1020 1021 struct usb_endpoint_descriptor *intr_ep; 1022 struct usb_endpoint_descriptor *bulk_tx_ep; 1023 struct usb_endpoint_descriptor *bulk_rx_ep; 1024 struct usb_endpoint_descriptor *isoc_tx_ep; 1025 struct usb_endpoint_descriptor *isoc_rx_ep; 1026 struct usb_endpoint_descriptor *diag_tx_ep; 1027 struct usb_endpoint_descriptor *diag_rx_ep; 1028 1029 struct gpio_desc *reset_gpio; 1030 1031 __u8 cmdreq_type; 1032 __u8 cmdreq; 1033 1034 unsigned int sco_num; 1035 unsigned int air_mode; 1036 bool usb_alt6_packet_flow; 1037 int isoc_altsetting; 1038 int suspend_count; 1039 const struct usb_device_id *match_id; 1040 1041 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 1042 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 1043 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 1044 1045 int (*setup_on_usb)(struct hci_dev *hdev); 1046 1047 int (*suspend)(struct hci_dev *hdev); 1048 int (*resume)(struct hci_dev *hdev); 1049 int (*disconnect)(struct hci_dev *hdev); 1050 1051 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 1052 }; 1053 1054 static void btusb_reset(struct hci_dev *hdev) 1055 { 1056 struct btusb_data *data; 1057 int err; 1058 1059 data = hci_get_drvdata(hdev); 1060 err = usb_autopm_get_interface(data->intf); 1061 if (err) { 1062 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 1063 return; 1064 } 1065 1066 if (test_and_set_bit(BTUSB_RESET, &data->flags)) 1067 usb_autopm_put_interface_no_suspend(data->intf); 1068 1069 bt_dev_err(hdev, "Resetting usb device."); 1070 usb_queue_reset_device(data->intf); 1071 } 1072 1073 static void btusb_intel_reset(struct hci_dev *hdev) 1074 { 1075 struct btusb_data *data = hci_get_drvdata(hdev); 1076 struct gpio_desc *reset_gpio = data->reset_gpio; 1077 struct btintel_data *intel_data = hci_get_priv(hdev); 1078 1079 if (intel_data->acpi_reset_method) { 1080 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 1081 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 1082 return; 1083 } 1084 1085 bt_dev_err(hdev, "Initiating acpi reset method"); 1086 /* If ACPI reset method fails, lets try with legacy GPIO 1087 * toggling 1088 */ 1089 if (!intel_data->acpi_reset_method(hdev)) { 1090 return; 1091 } 1092 } 1093 1094 if (!reset_gpio) { 1095 btusb_reset(hdev); 1096 return; 1097 } 1098 1099 /* 1100 * Toggle the hard reset line if the platform provides one. The reset 1101 * is going to yank the device off the USB and then replug. So doing 1102 * once is enough. The cleanup is handled correctly on the way out 1103 * (standard USB disconnect), and the new device is detected cleanly 1104 * and bound to the driver again like it should be. 1105 */ 1106 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1107 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1108 return; 1109 } 1110 1111 bt_dev_err(hdev, "Initiating HW reset via gpio"); 1112 gpiod_set_value_cansleep(reset_gpio, 1); 1113 msleep(100); 1114 gpiod_set_value_cansleep(reset_gpio, 0); 1115 } 1116 1117 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 1118 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 1119 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 1120 1121 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 1122 1123 struct rtk_dev_coredump_hdr { 1124 u8 type; 1125 u8 code; 1126 u8 reserved[2]; 1127 } __packed; 1128 1129 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 1130 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 1131 { 1132 struct sk_buff *skb; 1133 1134 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 1135 if (!skb) 1136 return; 1137 1138 skb_put_data(skb, hdr, sizeof(*hdr)); 1139 if (len) 1140 skb_put_data(skb, buf, len); 1141 1142 if (!hci_devcd_init(hdev, skb->len)) { 1143 hci_devcd_append(hdev, skb); 1144 hci_devcd_complete(hdev); 1145 } else { 1146 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 1147 kfree_skb(skb); 1148 } 1149 } 1150 1151 static void btusb_rtl_reset(struct hci_dev *hdev) 1152 { 1153 struct btusb_data *data = hci_get_drvdata(hdev); 1154 struct gpio_desc *reset_gpio = data->reset_gpio; 1155 struct rtk_dev_coredump_hdr hdr = { 1156 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1157 }; 1158 1159 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1160 1161 if (!reset_gpio) { 1162 btusb_reset(hdev); 1163 return; 1164 } 1165 1166 /* Toggle the hard reset line. The Realtek device is going to 1167 * yank itself off the USB and then replug. The cleanup is handled 1168 * correctly on the way out (standard USB disconnect), and the new 1169 * device is detected cleanly and bound to the driver again like 1170 * it should be. 1171 */ 1172 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1173 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1174 return; 1175 } 1176 1177 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1178 gpiod_set_value_cansleep(reset_gpio, 1); 1179 msleep(200); 1180 gpiod_set_value_cansleep(reset_gpio, 0); 1181 } 1182 1183 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1184 { 1185 struct rtk_dev_coredump_hdr hdr = { 1186 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1187 .code = code, 1188 }; 1189 1190 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1191 1192 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1193 } 1194 1195 static void btusb_qca_reset(struct hci_dev *hdev) 1196 { 1197 struct btusb_data *data = hci_get_drvdata(hdev); 1198 struct gpio_desc *reset_gpio = data->reset_gpio; 1199 1200 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1201 bt_dev_info(hdev, "Ramdump in progress, defer reset"); 1202 return; 1203 } 1204 1205 if (reset_gpio) { 1206 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1207 1208 /* Toggle the hard reset line. The qca bt device is going to 1209 * yank itself off the USB and then replug. The cleanup is handled 1210 * correctly on the way out (standard USB disconnect), and the new 1211 * device is detected cleanly and bound to the driver again like 1212 * it should be. 1213 */ 1214 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1215 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1216 return; 1217 } 1218 1219 gpiod_set_value_cansleep(reset_gpio, 0); 1220 msleep(200); 1221 gpiod_set_value_cansleep(reset_gpio, 1); 1222 1223 return; 1224 } 1225 1226 btusb_reset(hdev); 1227 } 1228 1229 static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb) 1230 { 1231 /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug 1232 * packets as ACL frames with connection handle 0x2EDC. These are not real 1233 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent 1234 * "ACL packet for unknown connection handle 3804" errors. 1235 */ 1236 if (skb->len >= 2) { 1237 u16 handle = get_unaligned_le16(skb->data); 1238 1239 if (handle == 0x2EDC) 1240 return HCI_DIAG_PKT; 1241 } 1242 1243 /* Use default packet type for other packets */ 1244 return hci_skb_pkt_type(skb); 1245 } 1246 1247 static inline void btusb_free_frags(struct btusb_data *data) 1248 { 1249 unsigned long flags; 1250 1251 spin_lock_irqsave(&data->rxlock, flags); 1252 1253 dev_kfree_skb_irq(data->evt_skb); 1254 data->evt_skb = NULL; 1255 1256 dev_kfree_skb_irq(data->acl_skb); 1257 data->acl_skb = NULL; 1258 1259 dev_kfree_skb_irq(data->sco_skb); 1260 data->sco_skb = NULL; 1261 1262 spin_unlock_irqrestore(&data->rxlock, flags); 1263 } 1264 1265 static int btusb_recv_event(struct hci_dev *hdev, struct sk_buff *skb) 1266 { 1267 struct btusb_data *data = hci_get_drvdata(hdev); 1268 1269 if (data->intr_interval) { 1270 /* Trigger dequeue immediately if an event is received */ 1271 schedule_delayed_work(&data->rx_work, 0); 1272 } 1273 1274 return data->recv_event(hdev, skb); 1275 } 1276 1277 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1278 { 1279 struct sk_buff *skb; 1280 unsigned long flags; 1281 int err = 0; 1282 1283 spin_lock_irqsave(&data->rxlock, flags); 1284 skb = data->evt_skb; 1285 1286 while (count) { 1287 int len; 1288 1289 if (!skb) { 1290 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1291 if (!skb) { 1292 err = -ENOMEM; 1293 break; 1294 } 1295 1296 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1297 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1298 } 1299 1300 len = min_t(uint, hci_skb_expect(skb), count); 1301 skb_put_data(skb, buffer, len); 1302 1303 count -= len; 1304 buffer += len; 1305 hci_skb_expect(skb) -= len; 1306 1307 if (skb->len == HCI_EVENT_HDR_SIZE) { 1308 /* Complete event header */ 1309 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1310 1311 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1312 kfree_skb(skb); 1313 skb = NULL; 1314 1315 err = -EILSEQ; 1316 break; 1317 } 1318 } 1319 1320 if (!hci_skb_expect(skb)) { 1321 /* Each chunk should correspond to at least 1 or more 1322 * events so if there are still bytes left that doesn't 1323 * constitute a new event this is likely a bug in the 1324 * controller. 1325 */ 1326 if (count && count < HCI_EVENT_HDR_SIZE) { 1327 bt_dev_warn(data->hdev, 1328 "Unexpected continuation: %d bytes", 1329 count); 1330 count = 0; 1331 } 1332 1333 /* Complete frame */ 1334 btusb_recv_event(data->hdev, skb); 1335 skb = NULL; 1336 } 1337 } 1338 1339 data->evt_skb = skb; 1340 spin_unlock_irqrestore(&data->rxlock, flags); 1341 1342 return err; 1343 } 1344 1345 static int btusb_recv_acl(struct hci_dev *hdev, struct sk_buff *skb) 1346 { 1347 struct btusb_data *data = hci_get_drvdata(hdev); 1348 1349 /* Only queue ACL packet if intr_interval is set as it means 1350 * force_poll_sync has been enabled. 1351 */ 1352 if (!data->intr_interval) 1353 return data->recv_acl(hdev, skb); 1354 1355 skb_queue_tail(&data->acl_q, skb); 1356 schedule_delayed_work(&data->rx_work, data->intr_interval); 1357 1358 return 0; 1359 } 1360 1361 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1362 { 1363 struct sk_buff *skb; 1364 unsigned long flags; 1365 int err = 0; 1366 1367 spin_lock_irqsave(&data->rxlock, flags); 1368 skb = data->acl_skb; 1369 1370 while (count) { 1371 int len; 1372 1373 if (!skb) { 1374 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1375 if (!skb) { 1376 err = -ENOMEM; 1377 break; 1378 } 1379 1380 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1381 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1382 } 1383 1384 len = min_t(uint, hci_skb_expect(skb), count); 1385 skb_put_data(skb, buffer, len); 1386 1387 count -= len; 1388 buffer += len; 1389 hci_skb_expect(skb) -= len; 1390 1391 if (skb->len == HCI_ACL_HDR_SIZE) { 1392 /* Complete ACL header */ 1393 hci_skb_expect(skb) = hci_acl_dlen(skb); 1394 1395 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1396 kfree_skb(skb); 1397 skb = NULL; 1398 1399 err = -EILSEQ; 1400 break; 1401 } 1402 } 1403 1404 if (!hci_skb_expect(skb)) { 1405 /* Complete frame */ 1406 btusb_recv_acl(data->hdev, skb); 1407 skb = NULL; 1408 } 1409 } 1410 1411 data->acl_skb = skb; 1412 spin_unlock_irqrestore(&data->rxlock, flags); 1413 1414 return err; 1415 } 1416 1417 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1418 struct hci_sco_hdr *hdr) 1419 { 1420 __u16 handle; 1421 1422 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1423 // Can't validate, userspace controls everything. 1424 return true; 1425 1426 /* 1427 * USB isochronous transfers are not designed to be reliable and may 1428 * lose fragments. When this happens, the next first fragment 1429 * encountered might actually be a continuation fragment. 1430 * Validate the handle to detect it and drop it, or else the upper 1431 * layer will get garbage for a while. 1432 */ 1433 1434 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1435 1436 switch (hci_conn_lookup_type(hdev, handle)) { 1437 case SCO_LINK: 1438 case ESCO_LINK: 1439 return true; 1440 default: 1441 return false; 1442 } 1443 } 1444 1445 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1446 { 1447 struct sk_buff *skb; 1448 unsigned long flags; 1449 int err = 0; 1450 1451 spin_lock_irqsave(&data->rxlock, flags); 1452 skb = data->sco_skb; 1453 1454 while (count) { 1455 int len; 1456 1457 if (!skb) { 1458 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1459 if (!skb) { 1460 err = -ENOMEM; 1461 break; 1462 } 1463 1464 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1465 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1466 } 1467 1468 len = min_t(uint, hci_skb_expect(skb), count); 1469 skb_put_data(skb, buffer, len); 1470 1471 count -= len; 1472 buffer += len; 1473 hci_skb_expect(skb) -= len; 1474 1475 if (skb->len == HCI_SCO_HDR_SIZE) { 1476 /* Complete SCO header */ 1477 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1478 1479 hci_skb_expect(skb) = hdr->dlen; 1480 1481 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1482 !btusb_validate_sco_handle(data->hdev, hdr)) { 1483 kfree_skb(skb); 1484 skb = NULL; 1485 1486 err = -EILSEQ; 1487 break; 1488 } 1489 } 1490 1491 if (!hci_skb_expect(skb)) { 1492 /* Complete frame */ 1493 hci_recv_frame(data->hdev, skb); 1494 skb = NULL; 1495 } 1496 } 1497 1498 data->sco_skb = skb; 1499 spin_unlock_irqrestore(&data->rxlock, flags); 1500 1501 return err; 1502 } 1503 1504 static void btusb_intr_complete(struct urb *urb) 1505 { 1506 struct hci_dev *hdev = urb->context; 1507 struct btusb_data *data = hci_get_drvdata(hdev); 1508 int err; 1509 1510 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1511 urb->actual_length); 1512 1513 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1514 return; 1515 1516 if (urb->status == 0) { 1517 hdev->stat.byte_rx += urb->actual_length; 1518 1519 if (btusb_recv_intr(data, urb->transfer_buffer, 1520 urb->actual_length) < 0) { 1521 bt_dev_err(hdev, "corrupted event packet"); 1522 hdev->stat.err_rx++; 1523 } 1524 } else if (urb->status == -ENOENT) { 1525 /* Avoid suspend failed when usb_kill_urb */ 1526 return; 1527 } 1528 1529 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1530 return; 1531 1532 usb_mark_last_busy(data->udev); 1533 usb_anchor_urb(urb, &data->intr_anchor); 1534 1535 err = usb_submit_urb(urb, GFP_ATOMIC); 1536 if (err < 0) { 1537 /* -EPERM: urb is being killed; 1538 * -ENODEV: device got disconnected 1539 */ 1540 if (err != -EPERM && err != -ENODEV) 1541 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1542 urb, -err); 1543 if (err != -EPERM) 1544 hci_cmd_sync_cancel(hdev, -err); 1545 usb_unanchor_urb(urb); 1546 } 1547 } 1548 1549 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1550 { 1551 struct btusb_data *data = hci_get_drvdata(hdev); 1552 struct urb *urb; 1553 unsigned char *buf; 1554 unsigned int pipe; 1555 int err, size; 1556 1557 BT_DBG("%s", hdev->name); 1558 1559 if (!data->intr_ep) 1560 return -ENODEV; 1561 1562 urb = usb_alloc_urb(0, mem_flags); 1563 if (!urb) 1564 return -ENOMEM; 1565 1566 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1567 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1568 /* Fake CSR devices don't seem to support sort-transter */ 1569 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1570 else 1571 /* Use maximum HCI Event size so the USB stack handles 1572 * ZPL/short-transfer automatically. 1573 */ 1574 size = HCI_MAX_EVENT_SIZE; 1575 1576 buf = kmalloc(size, mem_flags); 1577 if (!buf) { 1578 usb_free_urb(urb); 1579 return -ENOMEM; 1580 } 1581 1582 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1583 1584 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1585 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1586 1587 urb->transfer_flags |= URB_FREE_BUFFER; 1588 1589 usb_anchor_urb(urb, &data->intr_anchor); 1590 1591 err = usb_submit_urb(urb, mem_flags); 1592 if (err < 0) { 1593 if (err != -EPERM && err != -ENODEV) 1594 bt_dev_err(hdev, "urb %p submission failed (%d)", 1595 urb, -err); 1596 if (err != -EPERM) 1597 hci_cmd_sync_cancel(hdev, -err); 1598 usb_unanchor_urb(urb); 1599 } 1600 1601 /* Only initialize intr_interval if URB poll sync is enabled */ 1602 if (!data->poll_sync) 1603 goto done; 1604 1605 /* The units are frames (milliseconds) for full and low speed devices, 1606 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1607 * devices. 1608 * 1609 * This is done once on open/resume so it shouldn't change even if 1610 * force_poll_sync changes. 1611 */ 1612 switch (urb->dev->speed) { 1613 case USB_SPEED_SUPER_PLUS: 1614 case USB_SPEED_SUPER: /* units are 125us */ 1615 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1616 break; 1617 default: 1618 data->intr_interval = msecs_to_jiffies(urb->interval); 1619 break; 1620 } 1621 1622 done: 1623 usb_free_urb(urb); 1624 1625 return err; 1626 } 1627 1628 static void btusb_bulk_complete(struct urb *urb) 1629 { 1630 struct hci_dev *hdev = urb->context; 1631 struct btusb_data *data = hci_get_drvdata(hdev); 1632 int err; 1633 1634 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1635 urb->actual_length); 1636 1637 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1638 return; 1639 1640 if (urb->status == 0) { 1641 hdev->stat.byte_rx += urb->actual_length; 1642 1643 if (data->recv_bulk(data, urb->transfer_buffer, 1644 urb->actual_length) < 0) { 1645 bt_dev_err(hdev, "corrupted ACL packet"); 1646 hdev->stat.err_rx++; 1647 } 1648 } else if (urb->status == -ENOENT) { 1649 /* Avoid suspend failed when usb_kill_urb */ 1650 return; 1651 } 1652 1653 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1654 return; 1655 1656 usb_anchor_urb(urb, &data->bulk_anchor); 1657 usb_mark_last_busy(data->udev); 1658 1659 err = usb_submit_urb(urb, GFP_ATOMIC); 1660 if (err < 0) { 1661 /* -EPERM: urb is being killed; 1662 * -ENODEV: device got disconnected 1663 */ 1664 if (err != -EPERM && err != -ENODEV) 1665 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1666 urb, -err); 1667 usb_unanchor_urb(urb); 1668 } 1669 } 1670 1671 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1672 { 1673 struct btusb_data *data = hci_get_drvdata(hdev); 1674 struct urb *urb; 1675 unsigned char *buf; 1676 unsigned int pipe; 1677 int err, size = HCI_MAX_FRAME_SIZE; 1678 1679 BT_DBG("%s", hdev->name); 1680 1681 if (!data->bulk_rx_ep) 1682 return -ENODEV; 1683 1684 urb = usb_alloc_urb(0, mem_flags); 1685 if (!urb) 1686 return -ENOMEM; 1687 1688 buf = kmalloc(size, mem_flags); 1689 if (!buf) { 1690 usb_free_urb(urb); 1691 return -ENOMEM; 1692 } 1693 1694 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1695 1696 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1697 btusb_bulk_complete, hdev); 1698 1699 urb->transfer_flags |= URB_FREE_BUFFER; 1700 1701 usb_mark_last_busy(data->udev); 1702 usb_anchor_urb(urb, &data->bulk_anchor); 1703 1704 err = usb_submit_urb(urb, mem_flags); 1705 if (err < 0) { 1706 if (err != -EPERM && err != -ENODEV) 1707 bt_dev_err(hdev, "urb %p submission failed (%d)", 1708 urb, -err); 1709 usb_unanchor_urb(urb); 1710 } 1711 1712 usb_free_urb(urb); 1713 1714 return err; 1715 } 1716 1717 static void btusb_isoc_complete(struct urb *urb) 1718 { 1719 struct hci_dev *hdev = urb->context; 1720 struct btusb_data *data = hci_get_drvdata(hdev); 1721 int i, err; 1722 1723 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1724 urb->actual_length); 1725 1726 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1727 return; 1728 1729 if (urb->status == 0) { 1730 for (i = 0; i < urb->number_of_packets; i++) { 1731 unsigned int offset = urb->iso_frame_desc[i].offset; 1732 unsigned int length = urb->iso_frame_desc[i].actual_length; 1733 1734 if (urb->iso_frame_desc[i].status) 1735 continue; 1736 1737 hdev->stat.byte_rx += length; 1738 1739 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1740 length) < 0) { 1741 bt_dev_err(hdev, "corrupted SCO packet"); 1742 hdev->stat.err_rx++; 1743 } 1744 } 1745 } else if (urb->status == -ENOENT) { 1746 /* Avoid suspend failed when usb_kill_urb */ 1747 return; 1748 } 1749 1750 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1751 return; 1752 1753 usb_anchor_urb(urb, &data->isoc_anchor); 1754 1755 err = usb_submit_urb(urb, GFP_ATOMIC); 1756 if (err < 0) { 1757 /* -EPERM: urb is being killed; 1758 * -ENODEV: device got disconnected 1759 */ 1760 if (err != -EPERM && err != -ENODEV) 1761 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1762 urb, -err); 1763 usb_unanchor_urb(urb); 1764 } 1765 } 1766 1767 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1768 int mtu, struct btusb_data *data) 1769 { 1770 int i = 0, offset = 0; 1771 unsigned int interval; 1772 1773 BT_DBG("len %d mtu %d", len, mtu); 1774 1775 /* For mSBC ALT 6 settings some chips need to transmit the data 1776 * continuously without the zero length of USB packets. 1777 */ 1778 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1779 goto ignore_usb_alt6_packet_flow; 1780 1781 /* For mSBC ALT 6 setting the host will send the packet at continuous 1782 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1783 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1784 * To maintain the rate we send 63bytes of usb packets alternatively for 1785 * 7ms and 8ms to maintain the rate as 7.5ms. 1786 */ 1787 if (data->usb_alt6_packet_flow) { 1788 interval = 7; 1789 data->usb_alt6_packet_flow = false; 1790 } else { 1791 interval = 6; 1792 data->usb_alt6_packet_flow = true; 1793 } 1794 1795 for (i = 0; i < interval; i++) { 1796 urb->iso_frame_desc[i].offset = offset; 1797 urb->iso_frame_desc[i].length = offset; 1798 } 1799 1800 ignore_usb_alt6_packet_flow: 1801 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1802 urb->iso_frame_desc[i].offset = offset; 1803 urb->iso_frame_desc[i].length = len; 1804 i++; 1805 } 1806 1807 urb->number_of_packets = i; 1808 } 1809 1810 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1811 { 1812 int i, offset = 0; 1813 1814 BT_DBG("len %d mtu %d", len, mtu); 1815 1816 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1817 i++, offset += mtu, len -= mtu) { 1818 urb->iso_frame_desc[i].offset = offset; 1819 urb->iso_frame_desc[i].length = mtu; 1820 } 1821 1822 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1823 urb->iso_frame_desc[i].offset = offset; 1824 urb->iso_frame_desc[i].length = len; 1825 i++; 1826 } 1827 1828 urb->number_of_packets = i; 1829 } 1830 1831 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1832 { 1833 struct btusb_data *data = hci_get_drvdata(hdev); 1834 struct urb *urb; 1835 unsigned char *buf; 1836 unsigned int pipe; 1837 int err, size; 1838 1839 BT_DBG("%s", hdev->name); 1840 1841 if (!data->isoc_rx_ep) 1842 return -ENODEV; 1843 1844 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1845 if (!urb) 1846 return -ENOMEM; 1847 1848 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1849 BTUSB_MAX_ISOC_FRAMES; 1850 1851 buf = kmalloc(size, mem_flags); 1852 if (!buf) { 1853 usb_free_urb(urb); 1854 return -ENOMEM; 1855 } 1856 1857 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1858 1859 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1860 hdev, data->isoc_rx_ep->bInterval); 1861 1862 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1863 1864 __fill_isoc_descriptor(urb, size, 1865 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1866 1867 usb_anchor_urb(urb, &data->isoc_anchor); 1868 1869 err = usb_submit_urb(urb, mem_flags); 1870 if (err < 0) { 1871 if (err != -EPERM && err != -ENODEV) 1872 bt_dev_err(hdev, "urb %p submission failed (%d)", 1873 urb, -err); 1874 usb_unanchor_urb(urb); 1875 } 1876 1877 usb_free_urb(urb); 1878 1879 return err; 1880 } 1881 1882 static void btusb_diag_complete(struct urb *urb) 1883 { 1884 struct hci_dev *hdev = urb->context; 1885 struct btusb_data *data = hci_get_drvdata(hdev); 1886 int err; 1887 1888 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1889 urb->actual_length); 1890 1891 if (urb->status == 0) { 1892 struct sk_buff *skb; 1893 1894 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1895 if (skb) { 1896 skb_put_data(skb, urb->transfer_buffer, 1897 urb->actual_length); 1898 hci_recv_diag(hdev, skb); 1899 } 1900 } else if (urb->status == -ENOENT) { 1901 /* Avoid suspend failed when usb_kill_urb */ 1902 return; 1903 } 1904 1905 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1906 return; 1907 1908 usb_anchor_urb(urb, &data->diag_anchor); 1909 usb_mark_last_busy(data->udev); 1910 1911 err = usb_submit_urb(urb, GFP_ATOMIC); 1912 if (err < 0) { 1913 /* -EPERM: urb is being killed; 1914 * -ENODEV: device got disconnected 1915 */ 1916 if (err != -EPERM && err != -ENODEV) 1917 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1918 urb, -err); 1919 usb_unanchor_urb(urb); 1920 } 1921 } 1922 1923 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1924 { 1925 struct btusb_data *data = hci_get_drvdata(hdev); 1926 struct urb *urb; 1927 unsigned char *buf; 1928 unsigned int pipe; 1929 int err, size = HCI_MAX_FRAME_SIZE; 1930 1931 BT_DBG("%s", hdev->name); 1932 1933 if (!data->diag_rx_ep) 1934 return -ENODEV; 1935 1936 urb = usb_alloc_urb(0, mem_flags); 1937 if (!urb) 1938 return -ENOMEM; 1939 1940 buf = kmalloc(size, mem_flags); 1941 if (!buf) { 1942 usb_free_urb(urb); 1943 return -ENOMEM; 1944 } 1945 1946 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1947 1948 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1949 btusb_diag_complete, hdev); 1950 1951 urb->transfer_flags |= URB_FREE_BUFFER; 1952 1953 usb_mark_last_busy(data->udev); 1954 usb_anchor_urb(urb, &data->diag_anchor); 1955 1956 err = usb_submit_urb(urb, mem_flags); 1957 if (err < 0) { 1958 if (err != -EPERM && err != -ENODEV) 1959 bt_dev_err(hdev, "urb %p submission failed (%d)", 1960 urb, -err); 1961 usb_unanchor_urb(urb); 1962 } 1963 1964 usb_free_urb(urb); 1965 1966 return err; 1967 } 1968 1969 static void btusb_tx_complete(struct urb *urb) 1970 { 1971 struct sk_buff *skb = urb->context; 1972 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1973 struct btusb_data *data = hci_get_drvdata(hdev); 1974 unsigned long flags; 1975 1976 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1977 urb->actual_length); 1978 1979 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1980 goto done; 1981 1982 if (!urb->status) { 1983 hdev->stat.byte_tx += urb->transfer_buffer_length; 1984 } else { 1985 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1986 hci_cmd_sync_cancel(hdev, -urb->status); 1987 hdev->stat.err_tx++; 1988 } 1989 1990 done: 1991 spin_lock_irqsave(&data->txlock, flags); 1992 data->tx_in_flight--; 1993 spin_unlock_irqrestore(&data->txlock, flags); 1994 1995 kfree(urb->setup_packet); 1996 1997 kfree_skb(skb); 1998 } 1999 2000 static void btusb_isoc_tx_complete(struct urb *urb) 2001 { 2002 struct sk_buff *skb = urb->context; 2003 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 2004 2005 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 2006 urb->actual_length); 2007 2008 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2009 goto done; 2010 2011 if (!urb->status) 2012 hdev->stat.byte_tx += urb->transfer_buffer_length; 2013 else 2014 hdev->stat.err_tx++; 2015 2016 done: 2017 kfree(urb->setup_packet); 2018 2019 kfree_skb(skb); 2020 } 2021 2022 static int btusb_open(struct hci_dev *hdev) 2023 { 2024 struct btusb_data *data = hci_get_drvdata(hdev); 2025 int err; 2026 2027 BT_DBG("%s", hdev->name); 2028 2029 err = usb_autopm_get_interface(data->intf); 2030 if (err < 0) 2031 return err; 2032 2033 /* Patching USB firmware files prior to starting any URBs of HCI path 2034 * It is more safe to use USB bulk channel for downloading USB patch 2035 */ 2036 if (data->setup_on_usb) { 2037 err = data->setup_on_usb(hdev); 2038 if (err < 0) 2039 goto setup_fail; 2040 } 2041 2042 data->intf->needs_remote_wakeup = 1; 2043 2044 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 2045 goto done; 2046 2047 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 2048 if (err < 0) 2049 goto failed; 2050 2051 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2052 if (err < 0) { 2053 usb_kill_anchored_urbs(&data->intr_anchor); 2054 goto failed; 2055 } 2056 2057 set_bit(BTUSB_BULK_RUNNING, &data->flags); 2058 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2059 2060 if (data->diag) { 2061 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 2062 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 2063 } 2064 2065 done: 2066 usb_autopm_put_interface(data->intf); 2067 return 0; 2068 2069 failed: 2070 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2071 setup_fail: 2072 usb_autopm_put_interface(data->intf); 2073 return err; 2074 } 2075 2076 static void btusb_stop_traffic(struct btusb_data *data) 2077 { 2078 usb_kill_anchored_urbs(&data->intr_anchor); 2079 usb_kill_anchored_urbs(&data->bulk_anchor); 2080 usb_kill_anchored_urbs(&data->isoc_anchor); 2081 usb_kill_anchored_urbs(&data->diag_anchor); 2082 usb_kill_anchored_urbs(&data->ctrl_anchor); 2083 } 2084 2085 static void btusb_prepare_reset(struct hci_dev *hdev) 2086 { 2087 struct btusb_data *data = hci_get_drvdata(hdev); 2088 2089 btusb_stop_traffic(data); 2090 usb_kill_anchored_urbs(&data->tx_anchor); 2091 } 2092 2093 static int btusb_close(struct hci_dev *hdev) 2094 { 2095 struct btusb_data *data = hci_get_drvdata(hdev); 2096 int err; 2097 2098 BT_DBG("%s", hdev->name); 2099 2100 cancel_work_sync(&data->work); 2101 cancel_work_sync(&data->waker); 2102 2103 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2104 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 2105 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2106 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 2107 2108 btusb_stop_traffic(data); 2109 2110 /* rx_work must only be canceled once the URBs that can rearm it are 2111 * gone, and it must be canceled synchronously since btusb_disconnect() 2112 * frees the btusb_data it dereferences right after hci_unregister_dev(). 2113 */ 2114 cancel_delayed_work_sync(&data->rx_work); 2115 2116 skb_queue_purge(&data->acl_q); 2117 2118 btusb_free_frags(data); 2119 2120 err = usb_autopm_get_interface(data->intf); 2121 if (err < 0) 2122 goto failed; 2123 2124 data->intf->needs_remote_wakeup = 0; 2125 2126 /* Enable remote wake up for auto-suspend */ 2127 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 2128 data->intf->needs_remote_wakeup = 1; 2129 2130 usb_autopm_put_interface(data->intf); 2131 2132 failed: 2133 usb_scuttle_anchored_urbs(&data->deferred); 2134 return 0; 2135 } 2136 2137 static int btusb_flush(struct hci_dev *hdev) 2138 { 2139 struct btusb_data *data = hci_get_drvdata(hdev); 2140 2141 BT_DBG("%s", hdev->name); 2142 2143 cancel_delayed_work_sync(&data->rx_work); 2144 2145 skb_queue_purge(&data->acl_q); 2146 2147 usb_kill_anchored_urbs(&data->tx_anchor); 2148 btusb_free_frags(data); 2149 2150 return 0; 2151 } 2152 2153 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 2154 { 2155 struct btusb_data *data = hci_get_drvdata(hdev); 2156 struct usb_ctrlrequest *dr; 2157 struct urb *urb; 2158 unsigned int pipe; 2159 2160 urb = usb_alloc_urb(0, GFP_KERNEL); 2161 if (!urb) 2162 return ERR_PTR(-ENOMEM); 2163 2164 dr = kmalloc_obj(*dr); 2165 if (!dr) { 2166 usb_free_urb(urb); 2167 return ERR_PTR(-ENOMEM); 2168 } 2169 2170 dr->bRequestType = data->cmdreq_type; 2171 dr->bRequest = data->cmdreq; 2172 dr->wIndex = 0; 2173 dr->wValue = 0; 2174 dr->wLength = __cpu_to_le16(skb->len); 2175 2176 pipe = usb_sndctrlpipe(data->udev, 0x00); 2177 2178 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2179 skb->data, skb->len, btusb_tx_complete, skb); 2180 2181 skb->dev = (void *)hdev; 2182 2183 return urb; 2184 } 2185 2186 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2187 { 2188 struct btusb_data *data = hci_get_drvdata(hdev); 2189 struct urb *urb; 2190 unsigned int pipe; 2191 2192 if (!data->bulk_tx_ep) 2193 return ERR_PTR(-ENODEV); 2194 2195 urb = usb_alloc_urb(0, GFP_KERNEL); 2196 if (!urb) 2197 return ERR_PTR(-ENOMEM); 2198 2199 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2200 2201 usb_fill_bulk_urb(urb, data->udev, pipe, 2202 skb->data, skb->len, btusb_tx_complete, skb); 2203 2204 skb->dev = (void *)hdev; 2205 2206 return urb; 2207 } 2208 2209 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2210 { 2211 struct btusb_data *data = hci_get_drvdata(hdev); 2212 struct urb *urb; 2213 unsigned int pipe; 2214 2215 if (!data->isoc_tx_ep) 2216 return ERR_PTR(-ENODEV); 2217 2218 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2219 if (!urb) 2220 return ERR_PTR(-ENOMEM); 2221 2222 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2223 2224 usb_fill_int_urb(urb, data->udev, pipe, 2225 skb->data, skb->len, btusb_isoc_tx_complete, 2226 skb, data->isoc_tx_ep->bInterval); 2227 2228 urb->transfer_flags = URB_ISO_ASAP; 2229 2230 if (data->isoc_altsetting == 6) 2231 __fill_isoc_descriptor_msbc(urb, skb->len, 2232 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2233 data); 2234 else 2235 __fill_isoc_descriptor(urb, skb->len, 2236 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2237 skb->dev = (void *)hdev; 2238 2239 return urb; 2240 } 2241 2242 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2243 { 2244 struct btusb_data *data = hci_get_drvdata(hdev); 2245 int err; 2246 2247 usb_anchor_urb(urb, &data->tx_anchor); 2248 2249 err = usb_submit_urb(urb, GFP_KERNEL); 2250 if (err < 0) { 2251 if (err != -EPERM && err != -ENODEV) 2252 bt_dev_err(hdev, "urb %p submission failed (%d)", 2253 urb, -err); 2254 kfree(urb->setup_packet); 2255 usb_unanchor_urb(urb); 2256 } else { 2257 usb_mark_last_busy(data->udev); 2258 } 2259 2260 usb_free_urb(urb); 2261 return err; 2262 } 2263 2264 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2265 { 2266 struct btusb_data *data = hci_get_drvdata(hdev); 2267 unsigned long flags; 2268 bool suspending; 2269 2270 spin_lock_irqsave(&data->txlock, flags); 2271 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2272 if (!suspending) 2273 data->tx_in_flight++; 2274 spin_unlock_irqrestore(&data->txlock, flags); 2275 2276 if (!suspending) 2277 return submit_tx_urb(hdev, urb); 2278 2279 usb_anchor_urb(urb, &data->deferred); 2280 schedule_work(&data->waker); 2281 2282 usb_free_urb(urb); 2283 return 0; 2284 } 2285 2286 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2287 { 2288 struct urb *urb; 2289 2290 BT_DBG("%s", hdev->name); 2291 2292 switch (hci_skb_pkt_type(skb)) { 2293 case HCI_COMMAND_PKT: 2294 urb = alloc_ctrl_urb(hdev, skb); 2295 if (IS_ERR(urb)) 2296 return PTR_ERR(urb); 2297 2298 hdev->stat.cmd_tx++; 2299 return submit_or_queue_tx_urb(hdev, urb); 2300 2301 case HCI_ACLDATA_PKT: 2302 urb = alloc_bulk_urb(hdev, skb); 2303 if (IS_ERR(urb)) 2304 return PTR_ERR(urb); 2305 2306 hdev->stat.acl_tx++; 2307 return submit_or_queue_tx_urb(hdev, urb); 2308 2309 case HCI_SCODATA_PKT: 2310 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2311 hci_conn_num(hdev, SCO_LINK) < 1) 2312 return -ENODEV; 2313 2314 urb = alloc_isoc_urb(hdev, skb); 2315 if (IS_ERR(urb)) 2316 return PTR_ERR(urb); 2317 2318 hdev->stat.sco_tx++; 2319 return submit_tx_urb(hdev, urb); 2320 2321 case HCI_ISODATA_PKT: 2322 urb = alloc_bulk_urb(hdev, skb); 2323 if (IS_ERR(urb)) 2324 return PTR_ERR(urb); 2325 2326 return submit_or_queue_tx_urb(hdev, urb); 2327 } 2328 2329 return -EILSEQ; 2330 } 2331 2332 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2333 { 2334 struct btusb_data *data = hci_get_drvdata(hdev); 2335 2336 BT_DBG("%s evt %d", hdev->name, evt); 2337 2338 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2339 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2340 data->air_mode = evt; 2341 schedule_work(&data->work); 2342 } 2343 } 2344 2345 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2346 { 2347 struct btusb_data *data = hci_get_drvdata(hdev); 2348 struct usb_interface *intf = data->isoc; 2349 struct usb_endpoint_descriptor *ep_desc; 2350 int i, err; 2351 2352 if (!data->isoc) 2353 return -ENODEV; 2354 2355 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2356 if (err < 0) { 2357 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2358 return err; 2359 } 2360 2361 data->isoc_altsetting = altsetting; 2362 2363 data->isoc_tx_ep = NULL; 2364 data->isoc_rx_ep = NULL; 2365 2366 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2367 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2368 2369 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2370 data->isoc_tx_ep = ep_desc; 2371 continue; 2372 } 2373 2374 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2375 data->isoc_rx_ep = ep_desc; 2376 continue; 2377 } 2378 } 2379 2380 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2381 bt_dev_err(hdev, "invalid SCO descriptors"); 2382 return -ENODEV; 2383 } 2384 2385 return 0; 2386 } 2387 2388 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2389 { 2390 struct btusb_data *data = hci_get_drvdata(hdev); 2391 int err; 2392 2393 if (data->isoc_altsetting != new_alts) { 2394 unsigned long flags; 2395 2396 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2397 usb_kill_anchored_urbs(&data->isoc_anchor); 2398 2399 /* When isochronous alternate setting needs to be 2400 * changed, because SCO connection has been added 2401 * or removed, a packet fragment may be left in the 2402 * reassembling state. This could lead to wrongly 2403 * assembled fragments. 2404 * 2405 * Clear outstanding fragment when selecting a new 2406 * alternate setting. 2407 */ 2408 spin_lock_irqsave(&data->rxlock, flags); 2409 dev_kfree_skb_irq(data->sco_skb); 2410 data->sco_skb = NULL; 2411 spin_unlock_irqrestore(&data->rxlock, flags); 2412 2413 err = __set_isoc_interface(hdev, new_alts); 2414 if (err < 0) 2415 return err; 2416 } 2417 2418 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2419 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2420 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2421 else 2422 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2423 } 2424 2425 return 0; 2426 } 2427 2428 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2429 int alt) 2430 { 2431 struct usb_interface *intf = data->isoc; 2432 int i; 2433 2434 BT_DBG("Looking for Alt no :%d", alt); 2435 2436 if (!intf) 2437 return NULL; 2438 2439 for (i = 0; i < intf->num_altsetting; i++) { 2440 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2441 return &intf->altsetting[i]; 2442 } 2443 2444 return NULL; 2445 } 2446 2447 static void btusb_work(struct work_struct *work) 2448 { 2449 struct btusb_data *data = container_of(work, struct btusb_data, work); 2450 struct hci_dev *hdev = data->hdev; 2451 int new_alts = 0; 2452 int err; 2453 2454 if (data->sco_num > 0) { 2455 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2456 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2457 if (err < 0) { 2458 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2459 usb_kill_anchored_urbs(&data->isoc_anchor); 2460 return; 2461 } 2462 2463 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2464 } 2465 2466 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2467 if (hdev->voice_setting & 0x0020) { 2468 static const int alts[3] = { 2, 4, 5 }; 2469 unsigned int sco_idx; 2470 2471 sco_idx = min_t(unsigned int, data->sco_num - 1, 2472 ARRAY_SIZE(alts) - 1); 2473 new_alts = alts[sco_idx]; 2474 } else { 2475 new_alts = data->sco_num; 2476 } 2477 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2478 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2479 * many adapters do not support it. Alt 1 appears to 2480 * work for all adapters that do not have alt 6, and 2481 * which work with WBS at all. Some devices prefer 2482 * alt 3 (HCI payload >= 60 Bytes let air packet 2483 * data satisfy 60 bytes), requiring 2484 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2485 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2486 */ 2487 if (btusb_find_altsetting(data, 6)) 2488 new_alts = 6; 2489 else if (btusb_find_altsetting(data, 3) && 2490 hdev->sco_mtu >= 72 && 2491 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2492 new_alts = 3; 2493 else 2494 new_alts = 1; 2495 } 2496 2497 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2498 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2499 } else { 2500 usb_kill_anchored_urbs(&data->isoc_anchor); 2501 2502 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2503 __set_isoc_interface(hdev, 0); 2504 2505 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2506 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2507 } 2508 } 2509 2510 static void btusb_waker(struct work_struct *work) 2511 { 2512 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2513 int err; 2514 2515 err = usb_autopm_get_interface(data->intf); 2516 if (err < 0) 2517 return; 2518 2519 usb_autopm_put_interface(data->intf); 2520 } 2521 2522 static void btusb_rx_work(struct work_struct *work) 2523 { 2524 struct btusb_data *data = container_of(work, struct btusb_data, 2525 rx_work.work); 2526 struct sk_buff *skb; 2527 2528 /* Dequeue ACL data received during the interval */ 2529 while ((skb = skb_dequeue(&data->acl_q))) 2530 data->recv_acl(data->hdev, skb); 2531 } 2532 2533 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2534 { 2535 struct sk_buff *skb; 2536 u8 val = 0x00; 2537 2538 BT_DBG("%s", hdev->name); 2539 2540 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2541 if (IS_ERR(skb)) 2542 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2543 else 2544 kfree_skb(skb); 2545 2546 return 0; 2547 } 2548 2549 static int btusb_setup_csr(struct hci_dev *hdev) 2550 { 2551 struct btusb_data *data = hci_get_drvdata(hdev); 2552 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2553 struct hci_rp_read_local_version *rp; 2554 struct sk_buff *skb; 2555 bool is_fake = false; 2556 int ret; 2557 2558 BT_DBG("%s", hdev->name); 2559 2560 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2561 HCI_INIT_TIMEOUT); 2562 if (IS_ERR(skb)) { 2563 int err = PTR_ERR(skb); 2564 2565 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2566 return err; 2567 } 2568 2569 rp = skb_pull_data(skb, sizeof(*rp)); 2570 if (!rp) { 2571 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2572 kfree_skb(skb); 2573 return -EIO; 2574 } 2575 2576 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2577 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2578 2579 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2580 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2581 le16_to_cpu(rp->manufacturer)); 2582 2583 /* Detect a wide host of Chinese controllers that aren't CSR. 2584 * 2585 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2586 * 2587 * The main thing they have in common is that these are really popular low-cost 2588 * options that support newer Bluetooth versions but rely on heavy VID/PID 2589 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2590 * 2591 * We detect actual CSR devices by checking that the HCI manufacturer code 2592 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2593 * HCI rev values always match. As they both store the firmware number. 2594 */ 2595 if (le16_to_cpu(rp->manufacturer) != 10 || 2596 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2597 is_fake = true; 2598 2599 /* Known legit CSR firmware build numbers and their supported BT versions: 2600 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2601 * - 1.2 (0x2) -> 0x04d9, 0x0529 2602 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2603 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2604 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2605 * 2606 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2607 * support BT 1.1 only; so it's a dead giveaway when some 2608 * third-party BT 4.0 dongle reuses it. 2609 */ 2610 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2611 rp->hci_ver > BLUETOOTH_VER_1_1) 2612 is_fake = true; 2613 2614 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2615 rp->hci_ver > BLUETOOTH_VER_1_2) 2616 is_fake = true; 2617 2618 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2619 rp->hci_ver > BLUETOOTH_VER_2_0) 2620 is_fake = true; 2621 2622 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2623 rp->hci_ver > BLUETOOTH_VER_2_1) 2624 is_fake = true; 2625 2626 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2627 rp->hci_ver > BLUETOOTH_VER_4_0) 2628 is_fake = true; 2629 2630 /* Other clones which beat all the above checks */ 2631 else if (bcdDevice == 0x0134 && 2632 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2633 rp->hci_ver == BLUETOOTH_VER_2_0) 2634 is_fake = true; 2635 2636 if (is_fake) { 2637 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2638 2639 /* Generally these clones have big discrepancies between 2640 * advertised features and what's actually supported. 2641 * Probably will need to be expanded in the future; 2642 * without these the controller will lock up. 2643 */ 2644 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 2645 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 2646 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL); 2647 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER); 2648 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING); 2649 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE); 2650 2651 /* Clear the reset quirk since this is not an actual 2652 * early Bluetooth 1.1 device from CSR. 2653 */ 2654 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 2655 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 2656 2657 /* 2658 * Special workaround for these BT 4.0 chip clones, and potentially more: 2659 * 2660 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2661 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2662 * 2663 * These controllers are really messed-up. 2664 * 2665 * 1. Their bulk RX endpoint will never report any data unless 2666 * the device was suspended at least once (yes, really). 2667 * 2. They will not wakeup when autosuspended and receiving data 2668 * on their bulk RX endpoint from e.g. a keyboard or mouse 2669 * (IOW remote-wakeup support is broken for the bulk endpoint). 2670 * 2671 * To fix 1. enable runtime-suspend, force-suspend the 2672 * HCI and then wake-it up by disabling runtime-suspend. 2673 * 2674 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2675 * will still be autosuspended when it is not open. 2676 * 2677 * -- 2678 * 2679 * Because these are widespread problems we prefer generic solutions; so 2680 * apply this initialization quirk to every controller that gets here, 2681 * it should be harmless. The alternative is to not work at all. 2682 */ 2683 pm_runtime_allow(&data->udev->dev); 2684 2685 ret = pm_runtime_suspend(&data->udev->dev); 2686 if (ret >= 0) 2687 msleep(200); 2688 else 2689 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2690 2691 pm_runtime_forbid(&data->udev->dev); 2692 2693 device_set_wakeup_capable(&data->udev->dev, false); 2694 2695 /* Re-enable autosuspend if this was requested */ 2696 if (enable_autosuspend) 2697 usb_enable_autosuspend(data->udev); 2698 } 2699 2700 kfree_skb(skb); 2701 2702 return 0; 2703 } 2704 2705 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2706 { 2707 struct sk_buff *skb; 2708 struct hci_event_hdr *hdr; 2709 struct hci_ev_cmd_complete *evt; 2710 2711 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2712 if (!skb) 2713 return -ENOMEM; 2714 2715 hdr = skb_put(skb, sizeof(*hdr)); 2716 hdr->evt = HCI_EV_CMD_COMPLETE; 2717 hdr->plen = sizeof(*evt) + 1; 2718 2719 evt = skb_put(skb, sizeof(*evt)); 2720 evt->ncmd = 0x01; 2721 evt->opcode = cpu_to_le16(opcode); 2722 2723 skb_put_u8(skb, 0x00); 2724 2725 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2726 2727 return hci_recv_frame(hdev, skb); 2728 } 2729 2730 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2731 int count) 2732 { 2733 struct hci_dev *hdev = data->hdev; 2734 2735 /* When the device is in bootloader mode, then it can send 2736 * events via the bulk endpoint. These events are treated the 2737 * same way as the ones received from the interrupt endpoint. 2738 */ 2739 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2740 return btusb_recv_intr(data, buffer, count); 2741 2742 return btusb_recv_bulk(data, buffer, count); 2743 } 2744 2745 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2746 { 2747 struct urb *urb; 2748 2749 BT_DBG("%s", hdev->name); 2750 2751 switch (hci_skb_pkt_type(skb)) { 2752 case HCI_COMMAND_PKT: 2753 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2754 struct hci_command_hdr *cmd = (void *)skb->data; 2755 __u16 opcode = le16_to_cpu(cmd->opcode); 2756 2757 /* When in bootloader mode and the command 0xfc09 2758 * is received, it needs to be send down the 2759 * bulk endpoint. So allocate a bulk URB instead. 2760 */ 2761 if (opcode == 0xfc09) 2762 urb = alloc_bulk_urb(hdev, skb); 2763 else 2764 urb = alloc_ctrl_urb(hdev, skb); 2765 2766 /* When the BTINTEL_HCI_OP_RESET command is issued to 2767 * boot into the operational firmware, it will actually 2768 * not send a command complete event. To keep the flow 2769 * control working inject that event here. 2770 */ 2771 if (opcode == BTINTEL_HCI_OP_RESET) 2772 inject_cmd_complete(hdev, opcode); 2773 } else { 2774 urb = alloc_ctrl_urb(hdev, skb); 2775 } 2776 if (IS_ERR(urb)) 2777 return PTR_ERR(urb); 2778 2779 hdev->stat.cmd_tx++; 2780 return submit_or_queue_tx_urb(hdev, urb); 2781 2782 case HCI_ACLDATA_PKT: 2783 urb = alloc_bulk_urb(hdev, skb); 2784 if (IS_ERR(urb)) 2785 return PTR_ERR(urb); 2786 2787 hdev->stat.acl_tx++; 2788 return submit_or_queue_tx_urb(hdev, urb); 2789 2790 case HCI_SCODATA_PKT: 2791 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2792 hci_conn_num(hdev, SCO_LINK) < 1) 2793 return -ENODEV; 2794 2795 urb = alloc_isoc_urb(hdev, skb); 2796 if (IS_ERR(urb)) 2797 return PTR_ERR(urb); 2798 2799 hdev->stat.sco_tx++; 2800 return submit_tx_urb(hdev, urb); 2801 2802 case HCI_ISODATA_PKT: 2803 urb = alloc_bulk_urb(hdev, skb); 2804 if (IS_ERR(urb)) 2805 return PTR_ERR(urb); 2806 2807 return submit_or_queue_tx_urb(hdev, urb); 2808 } 2809 2810 return -EILSEQ; 2811 } 2812 2813 static int btusb_setup_realtek(struct hci_dev *hdev) 2814 { 2815 struct btusb_data *data = hci_get_drvdata(hdev); 2816 int ret; 2817 2818 ret = btrtl_setup_realtek(hdev); 2819 2820 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2821 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2822 2823 return ret; 2824 } 2825 2826 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2827 { 2828 if (skb->len >= HCI_EVENT_HDR_SIZE + 1 && 2829 skb->data[0] == HCI_EV_VENDOR && 2830 skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2831 struct rtk_dev_coredump_hdr hdr = { 2832 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2833 }; 2834 2835 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2836 skb->len); 2837 2838 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2839 kfree_skb(skb); 2840 2841 return 0; 2842 } 2843 2844 return hci_recv_frame(hdev, skb); 2845 } 2846 2847 static void btusb_mtk_claim_iso_intf(struct btusb_data *data) 2848 { 2849 struct btmtk_data *btmtk_data; 2850 int err; 2851 2852 if (!data->hdev) 2853 return; 2854 2855 btmtk_data = hci_get_priv(data->hdev); 2856 if (!btmtk_data) 2857 return; 2858 2859 if (!btmtk_data->isopkt_intf) { 2860 bt_dev_err(data->hdev, "Can't claim NULL iso interface"); 2861 return; 2862 } 2863 2864 /* 2865 * The function usb_driver_claim_interface() is documented to need 2866 * locks held if it's not called from a probe routine. The code here 2867 * is called from the hci_power_on workqueue, so grab the lock. 2868 */ 2869 device_lock(&btmtk_data->isopkt_intf->dev); 2870 err = usb_driver_claim_interface(&btusb_driver, 2871 btmtk_data->isopkt_intf, data); 2872 device_unlock(&btmtk_data->isopkt_intf->dev); 2873 if (err < 0) { 2874 btmtk_data->isopkt_intf = NULL; 2875 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err); 2876 return; 2877 } 2878 2879 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2880 init_usb_anchor(&btmtk_data->isopkt_anchor); 2881 } 2882 2883 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev) 2884 { 2885 struct btmtk_data *btmtk_data; 2886 2887 if (!hdev) 2888 return; 2889 2890 btmtk_data = hci_get_priv(hdev); 2891 if (!btmtk_data) 2892 return; 2893 2894 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2895 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); 2896 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); 2897 2898 if (btmtk_data->isopkt_skb) { 2899 dev_kfree_skb_irq(btmtk_data->isopkt_skb); 2900 btmtk_data->isopkt_skb = NULL; 2901 } 2902 2903 if (btmtk_data->isopkt_intf) { 2904 usb_set_intfdata(btmtk_data->isopkt_intf, NULL); 2905 usb_driver_release_interface(&btusb_driver, 2906 btmtk_data->isopkt_intf); 2907 btmtk_data->isopkt_intf = NULL; 2908 } 2909 } 2910 2911 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2912 } 2913 2914 static int btusb_mtk_disconnect(struct hci_dev *hdev) 2915 { 2916 /* This function describes the specific additional steps taken by MediaTek 2917 * when Bluetooth usb driver's resume function is called. 2918 */ 2919 btusb_mtk_release_iso_intf(hdev); 2920 2921 return 0; 2922 } 2923 2924 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2925 { 2926 struct btusb_data *data = hci_get_drvdata(hdev); 2927 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2928 int err; 2929 2930 /* It's MediaTek specific bluetooth reset mechanism via USB */ 2931 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) { 2932 bt_dev_err(hdev, "last reset failed? Not resetting again"); 2933 return -EBUSY; 2934 } 2935 2936 err = usb_autopm_get_interface(data->intf); 2937 if (err < 0) { 2938 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 2939 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 2940 return err; 2941 } 2942 2943 /* Release MediaTek ISO data interface */ 2944 btusb_mtk_release_iso_intf(hdev); 2945 2946 btusb_prepare_reset(hdev); 2947 2948 /* Toggle the hard reset line. The MediaTek device is going to 2949 * yank itself off the USB and then replug. The cleanup is handled 2950 * correctly on the way out (standard USB disconnect), and the new 2951 * device is detected cleanly and bound to the driver again like 2952 * it should be. 2953 */ 2954 if (data->reset_gpio) { 2955 gpiod_set_value_cansleep(data->reset_gpio, 1); 2956 msleep(200); 2957 gpiod_set_value_cansleep(data->reset_gpio, 0); 2958 return 0; 2959 } 2960 2961 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); 2962 2963 if (test_and_set_bit(BTUSB_RESET, &data->flags)) { 2964 bt_dev_err(hdev, "last usb reset failed? Resetting again"); 2965 usb_autopm_put_interface_no_suspend(data->intf); 2966 } 2967 2968 usb_queue_reset_device(data->intf); 2969 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 2970 2971 return err; 2972 } 2973 2974 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb) 2975 { 2976 struct urb *urb; 2977 2978 BT_DBG("%s", hdev->name); 2979 2980 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) { 2981 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); 2982 if (IS_ERR(urb)) 2983 return PTR_ERR(urb); 2984 2985 return submit_or_queue_tx_urb(hdev, urb); 2986 } else { 2987 return btusb_send_frame(hdev, skb); 2988 } 2989 } 2990 2991 static inline bool platform_is_ryzen(void) 2992 { 2993 #ifdef CONFIG_X86 2994 return boot_cpu_has(X86_FEATURE_ZEN); 2995 #else 2996 return false; 2997 #endif 2998 } 2999 3000 static inline bool is_direct_child_of_root_hub(struct usb_device *udev) 3001 { 3002 return udev->parent == udev->bus->root_hub; 3003 } 3004 3005 static int btusb_mtk_setup(struct hci_dev *hdev) 3006 { 3007 struct btusb_data *data = hci_get_drvdata(hdev); 3008 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 3009 int err; 3010 3011 /* MediaTek WMT vendor cmd requiring below USB resources to 3012 * complete the handshake. 3013 */ 3014 btmtk_data->drv_name = btusb_driver.name; 3015 btmtk_data->intf = data->intf; 3016 btmtk_data->udev = data->udev; 3017 btmtk_data->ctrl_anchor = &data->ctrl_anchor; 3018 btmtk_data->reset_sync = btusb_mtk_reset; 3019 3020 /* Claim ISO data interface and endpoint */ 3021 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 3022 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); 3023 btusb_mtk_claim_iso_intf(data); 3024 } 3025 3026 err = btmtk_usb_setup(hdev); 3027 if (err) 3028 return err; 3029 3030 switch (btmtk_data->dev_id) { 3031 case 0x7922: 3032 case 0x7925: 3033 /* 3034 * All reports seen to be relevant to Ryzen-based laptops. These 3035 * NICs are usually used as OEM components thanks to some sort 3036 * of reference designs. 3037 * 3038 * Their popularity on other platforms is unclear. While there 3039 * is still a chance that the quirk may exist on other 3040 * platforms, be cautious and only apply the quirk to direct 3041 * children of Ryzen platforms's root hubs for the time being. 3042 * 3043 * In most cases the root hub is on the SoC or PCH, which needs 3044 * the quirk. Unfortunately, this can't distinguish root hubs on 3045 * PCIe add-in cards. Such roughness should be acceptable, as 3046 * PCIe USB controller add-in cards are less commonly used 3047 * nowadays. On the other hand, applying the quirk doesn't hurt 3048 * any functionalities either, as the device can still be used 3049 * as a wakeup source if desired. 3050 * 3051 * Theoretically, we could retrieve the root hub's PCI vendor ID 3052 * with some hierarchy magic, but that's too intrusive... 3053 */ 3054 if (platform_is_ryzen() && is_direct_child_of_root_hub(data->udev)) 3055 set_bit(BTUSB_WAKEUP_BROKEN, &data->flags); 3056 break; 3057 } 3058 3059 return 0; 3060 } 3061 3062 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3063 { 3064 int ret; 3065 3066 ret = btmtk_usb_shutdown(hdev); 3067 3068 /* Release MediaTek iso interface after shutdown */ 3069 btusb_mtk_release_iso_intf(hdev); 3070 3071 return ret; 3072 } 3073 3074 #ifdef CONFIG_PM 3075 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3076 static int marvell_config_oob_wake(struct hci_dev *hdev) 3077 { 3078 struct sk_buff *skb; 3079 struct btusb_data *data = hci_get_drvdata(hdev); 3080 struct device *dev = &data->udev->dev; 3081 u16 pin, gap, opcode; 3082 int ret; 3083 u8 cmd[5]; 3084 3085 /* Move on if no wakeup pin specified */ 3086 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3087 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3088 return 0; 3089 3090 /* Vendor specific command to configure a GPIO as wake-up pin */ 3091 opcode = hci_opcode_pack(0x3F, 0x59); 3092 cmd[0] = opcode & 0xFF; 3093 cmd[1] = opcode >> 8; 3094 cmd[2] = 2; /* length of parameters that follow */ 3095 cmd[3] = pin; 3096 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3097 3098 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3099 if (!skb) { 3100 bt_dev_err(hdev, "%s: No memory", __func__); 3101 return -ENOMEM; 3102 } 3103 3104 skb_put_data(skb, cmd, sizeof(cmd)); 3105 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3106 3107 ret = btusb_send_frame(hdev, skb); 3108 if (ret) { 3109 bt_dev_err(hdev, "%s: configuration failed", __func__); 3110 kfree_skb(skb); 3111 return ret; 3112 } 3113 3114 return 0; 3115 } 3116 #else 3117 static inline int marvell_config_oob_wake(struct hci_dev *hdev) 3118 { 3119 return 0; 3120 } 3121 #endif 3122 3123 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3124 const bdaddr_t *bdaddr) 3125 { 3126 struct sk_buff *skb; 3127 u8 buf[8]; 3128 long ret; 3129 3130 buf[0] = 0xfe; 3131 buf[1] = sizeof(bdaddr_t); 3132 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3133 3134 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3135 if (IS_ERR(skb)) { 3136 ret = PTR_ERR(skb); 3137 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3138 ret); 3139 return ret; 3140 } 3141 kfree_skb(skb); 3142 3143 return 0; 3144 } 3145 3146 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3147 const bdaddr_t *bdaddr) 3148 { 3149 struct sk_buff *skb; 3150 u8 buf[10]; 3151 long ret; 3152 3153 buf[0] = 0x01; 3154 buf[1] = 0x01; 3155 buf[2] = 0x00; 3156 buf[3] = sizeof(bdaddr_t); 3157 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3158 3159 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3160 if (IS_ERR(skb)) { 3161 ret = PTR_ERR(skb); 3162 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3163 return ret; 3164 } 3165 kfree_skb(skb); 3166 3167 return 0; 3168 } 3169 3170 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3171 const bdaddr_t *bdaddr) 3172 { 3173 bdaddr_t bdaddr_swapped; 3174 struct sk_buff *skb; 3175 long ret; 3176 3177 baswap(&bdaddr_swapped, bdaddr); 3178 3179 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(bdaddr_swapped), 3180 &bdaddr_swapped, HCI_EV_CMD_COMPLETE, 3181 HCI_INIT_TIMEOUT); 3182 if (IS_ERR(skb)) { 3183 ret = PTR_ERR(skb); 3184 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3185 return ret; 3186 } 3187 kfree_skb(skb); 3188 3189 return 0; 3190 } 3191 3192 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3193 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3194 #define QCA_MEMDUMP_VSE_CLASS 0x01 3195 #define QCA_MEMDUMP_MSG_TYPE 0x08 3196 #define QCA_MEMDUMP_PKT_SIZE 248 3197 #define QCA_LAST_SEQUENCE_NUM 0xffff 3198 3199 struct qca_dump_hdr { 3200 u8 vse_class; 3201 u8 msg_type; 3202 __le16 seqno; 3203 u8 reserved; 3204 union { 3205 u8 data[0]; 3206 struct { 3207 __le32 ram_dump_size; 3208 u8 data0[0]; 3209 } __packed; 3210 }; 3211 } __packed; 3212 3213 3214 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3215 { 3216 char buf[128]; 3217 struct btqca_data *btqca_data = hci_get_priv(hdev); 3218 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump; 3219 3220 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3221 qca_dump_ptr->controller_id); 3222 skb_put_data(skb, buf, strlen(buf)); 3223 3224 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3225 qca_dump_ptr->fw_version); 3226 skb_put_data(skb, buf, strlen(buf)); 3227 3228 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3229 btusb_driver.name); 3230 skb_put_data(skb, buf, strlen(buf)); 3231 3232 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3233 qca_dump_ptr->id_vendor, qca_dump_ptr->id_product); 3234 skb_put_data(skb, buf, strlen(buf)); 3235 3236 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3237 hdev->lmp_subver); 3238 skb_put_data(skb, buf, strlen(buf)); 3239 } 3240 3241 static void btusb_coredump_qca(struct hci_dev *hdev) 3242 { 3243 int err; 3244 static const u8 param[] = { 0x26 }; 3245 3246 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3247 if (err < 0) 3248 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3249 } 3250 3251 /* Return: 0 on success, negative errno on failure. */ 3252 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3253 { 3254 int ret = 0; 3255 unsigned int skip = 0; 3256 u8 pkt_type; 3257 u16 seqno; 3258 u32 dump_size; 3259 3260 struct qca_dump_hdr *dump_hdr; 3261 struct btusb_data *btdata = hci_get_drvdata(hdev); 3262 struct btqca_data *btqca_data = hci_get_priv(hdev); 3263 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump; 3264 struct usb_device *udev = btdata->udev; 3265 3266 pkt_type = hci_skb_pkt_type(skb); 3267 skip = sizeof(struct hci_event_hdr); 3268 if (pkt_type == HCI_ACLDATA_PKT) 3269 skip += sizeof(struct hci_acl_hdr); 3270 3271 skb_pull(skb, skip); 3272 dump_hdr = (struct qca_dump_hdr *)skb->data; 3273 3274 seqno = le16_to_cpu(dump_hdr->seqno); 3275 if (seqno == 0) { 3276 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3277 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3278 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3279 ret = -EILSEQ; 3280 bt_dev_err(hdev, "Invalid memdump size(%u)", 3281 dump_size); 3282 goto out; 3283 } 3284 3285 ret = hci_devcd_init(hdev, dump_size); 3286 if (ret < 0) { 3287 bt_dev_err(hdev, "memdump init error(%d)", ret); 3288 goto out; 3289 } 3290 3291 qca_dump_ptr->ram_dump_size = dump_size; 3292 qca_dump_ptr->ram_dump_seqno = 0; 3293 3294 skb_pull(skb, offsetof(struct qca_dump_hdr, data0)); 3295 3296 usb_disable_autosuspend(udev); 3297 bt_dev_info(hdev, "%s memdump size(%u)\n", 3298 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3299 dump_size); 3300 } else { 3301 skb_pull(skb, offsetof(struct qca_dump_hdr, data)); 3302 } 3303 3304 if (!qca_dump_ptr->ram_dump_size) { 3305 ret = -EINVAL; 3306 bt_dev_err(hdev, "memdump is not active"); 3307 goto out; 3308 } 3309 3310 if ((seqno > qca_dump_ptr->ram_dump_seqno + 1) && seqno != QCA_LAST_SEQUENCE_NUM) { 3311 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - qca_dump_ptr->ram_dump_seqno - 1); 3312 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3313 bt_dev_err(hdev, 3314 "expected memdump seqno(%u) is not received(%u)\n", 3315 qca_dump_ptr->ram_dump_seqno, seqno); 3316 qca_dump_ptr->ram_dump_seqno = seqno; 3317 kfree_skb(skb); 3318 return ret; 3319 } 3320 3321 hci_devcd_append(hdev, skb); 3322 qca_dump_ptr->ram_dump_seqno++; 3323 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3324 bt_dev_info(hdev, 3325 "memdump done: pkts(%u), total(%u)\n", 3326 qca_dump_ptr->ram_dump_seqno, qca_dump_ptr->ram_dump_size); 3327 3328 hci_devcd_complete(hdev); 3329 goto out; 3330 } 3331 return ret; 3332 3333 out: 3334 if (qca_dump_ptr->ram_dump_size) 3335 usb_enable_autosuspend(udev); 3336 qca_dump_ptr->ram_dump_size = 0; 3337 qca_dump_ptr->ram_dump_seqno = 0; 3338 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3339 3340 if (ret < 0) 3341 kfree_skb(skb); 3342 return ret; 3343 } 3344 3345 /* Return: true if the ACL packet is a dump packet, false otherwise. */ 3346 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3347 { 3348 struct hci_event_hdr *event_hdr; 3349 struct hci_acl_hdr *acl_hdr; 3350 struct qca_dump_hdr *dump_hdr; 3351 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3352 bool is_dump = false; 3353 3354 if (!clone) 3355 return false; 3356 3357 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr)); 3358 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)) 3359 goto out; 3360 3361 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3362 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR) 3363 goto out; 3364 3365 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3366 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3367 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3368 goto out; 3369 3370 is_dump = true; 3371 out: 3372 consume_skb(clone); 3373 return is_dump; 3374 } 3375 3376 /* Return: true if the event packet is a dump packet, false otherwise. */ 3377 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3378 { 3379 struct hci_event_hdr *event_hdr; 3380 struct qca_dump_hdr *dump_hdr; 3381 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3382 bool is_dump = false; 3383 3384 if (!clone) 3385 return false; 3386 3387 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3388 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR) 3389 goto out; 3390 3391 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3392 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3393 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3394 goto out; 3395 3396 is_dump = true; 3397 out: 3398 consume_skb(clone); 3399 return is_dump; 3400 } 3401 3402 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3403 { 3404 if (acl_pkt_is_dump_qca(hdev, skb)) 3405 return handle_dump_pkt_qca(hdev, skb); 3406 return hci_recv_frame(hdev, skb); 3407 } 3408 3409 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3410 { 3411 if (evt_pkt_is_dump_qca(hdev, skb)) 3412 return handle_dump_pkt_qca(hdev, skb); 3413 return hci_recv_frame(hdev, skb); 3414 } 3415 3416 3417 #define QCA_DFU_PACKET_LEN 4096 3418 3419 #define QCA_GET_TARGET_VERSION 0x09 3420 #define QCA_CHECK_STATUS 0x05 3421 #define QCA_DFU_DOWNLOAD 0x01 3422 3423 #define QCA_SYSCFG_UPDATED 0x40 3424 #define QCA_PATCH_UPDATED 0x80 3425 #define QCA_DFU_TIMEOUT 3000 3426 #define QCA_FLAG_MULTI_NVM 0x80 3427 #define QCA_BT_RESET_WAIT_MS 100 3428 3429 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3430 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3431 3432 struct qca_version { 3433 __le32 rom_version; 3434 __le32 patch_version; 3435 __le32 ram_version; 3436 __u8 chip_id; 3437 __u8 platform_id; 3438 __le16 flag; 3439 __u8 reserved[4]; 3440 } __packed; 3441 3442 struct qca_rampatch_version { 3443 __le16 rom_version_high; 3444 __le16 rom_version_low; 3445 __le16 patch_version; 3446 } __packed; 3447 3448 struct qca_device_info { 3449 u32 rom_version; 3450 u8 rampatch_hdr; /* length of header in rampatch */ 3451 u8 nvm_hdr; /* length of header in NVM */ 3452 u8 ver_offset; /* offset of version structure in rampatch */ 3453 }; 3454 3455 struct qca_custom_firmware { 3456 u32 rom_version; 3457 u16 board_id; 3458 const char *subdirectory; 3459 }; 3460 3461 static const struct qca_device_info qca_devices_table[] = { 3462 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3463 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3464 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3465 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3466 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3467 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3468 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3469 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3470 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3471 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3472 }; 3473 3474 static const struct qca_custom_firmware qca_custom_btfws[] = { 3475 { 0x00130201, 0x030A, "QCA2066" }, 3476 { 0x00130201, 0x030B, "QCA2066" }, 3477 { }, 3478 }; 3479 3480 static u16 qca_extract_board_id(const struct qca_version *ver) 3481 { 3482 u16 flag = le16_to_cpu(ver->flag); 3483 u16 board_id = 0; 3484 3485 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3486 /* The board_id should be split into two bytes 3487 * The 1st byte is chip ID, and the 2nd byte is platform ID 3488 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3489 * we have several platforms, and platform IDs are continuously added 3490 * Platform ID: 3491 * 0x00 is for Mobile 3492 * 0x01 is for X86 3493 * 0x02 is for Automotive 3494 * 0x03 is for Consumer electronic 3495 */ 3496 board_id = (ver->chip_id << 8) + ver->platform_id; 3497 } 3498 3499 /* Take 0xffff as invalid board ID */ 3500 if (board_id == 0xffff) 3501 board_id = 0; 3502 3503 return board_id; 3504 } 3505 3506 static const char *qca_get_fw_subdirectory(const struct qca_version *ver) 3507 { 3508 const struct qca_custom_firmware *ptr; 3509 u32 rom_ver; 3510 u16 board_id; 3511 3512 rom_ver = le32_to_cpu(ver->rom_version); 3513 board_id = qca_extract_board_id(ver); 3514 if (!board_id) 3515 return NULL; 3516 3517 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) { 3518 if (ptr->rom_version == rom_ver && 3519 ptr->board_id == board_id) 3520 return ptr->subdirectory; 3521 } 3522 3523 return NULL; 3524 } 3525 3526 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3527 void *data, u16 size) 3528 { 3529 int err; 3530 3531 /* Found some of USB hosts have IOT issues with ours so that we should 3532 * not wait until HCI layer is ready. 3533 */ 3534 err = usb_control_msg_recv(udev, 0, request, USB_TYPE_VENDOR | USB_DIR_IN, 3535 0, 0, data, size, USB_CTRL_GET_TIMEOUT, 3536 GFP_KERNEL); 3537 if (err) 3538 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3539 3540 return err; 3541 } 3542 3543 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3544 const struct firmware *firmware, 3545 size_t hdr_size) 3546 { 3547 struct btusb_data *btdata = hci_get_drvdata(hdev); 3548 struct usb_device *udev = btdata->udev; 3549 size_t count, size, sent = 0; 3550 int pipe, len, err; 3551 u8 *buf; 3552 3553 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3554 if (!buf) 3555 return -ENOMEM; 3556 3557 count = firmware->size; 3558 3559 size = min_t(size_t, count, hdr_size); 3560 memcpy(buf, firmware->data, size); 3561 3562 /* USB patches should go down to controller through USB path 3563 * because binary format fits to go down through USB channel. 3564 * USB control path is for patching headers and USB bulk is for 3565 * patch body. 3566 */ 3567 pipe = usb_sndctrlpipe(udev, 0); 3568 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3569 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3570 if (err < 0) { 3571 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3572 goto done; 3573 } 3574 3575 sent += size; 3576 count -= size; 3577 3578 /* ep2 need time to switch from function acl to function dfu, 3579 * so we add 20ms delay here. 3580 */ 3581 msleep(20); 3582 3583 while (count) { 3584 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3585 3586 memcpy(buf, firmware->data + sent, size); 3587 3588 pipe = usb_sndbulkpipe(udev, 0x02); 3589 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3590 QCA_DFU_TIMEOUT); 3591 if (err < 0) { 3592 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3593 sent, firmware->size, err); 3594 break; 3595 } 3596 3597 if (size != len) { 3598 bt_dev_err(hdev, "Failed to get bulk buffer"); 3599 err = -EILSEQ; 3600 break; 3601 } 3602 3603 sent += size; 3604 count -= size; 3605 } 3606 3607 done: 3608 kfree(buf); 3609 return err; 3610 } 3611 3612 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3613 struct qca_version *ver, 3614 const struct qca_device_info *info) 3615 { 3616 struct qca_rampatch_version *rver; 3617 const struct firmware *fw; 3618 const char *fw_subdir; 3619 u32 ver_rom, ver_patch, rver_rom; 3620 u16 rver_rom_low, rver_rom_high, rver_patch; 3621 char fwname[80]; 3622 int err; 3623 3624 ver_rom = le32_to_cpu(ver->rom_version); 3625 ver_patch = le32_to_cpu(ver->patch_version); 3626 3627 fw_subdir = qca_get_fw_subdirectory(ver); 3628 if (fw_subdir) 3629 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin", 3630 fw_subdir, ver_rom); 3631 else 3632 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", 3633 ver_rom); 3634 3635 err = request_firmware(&fw, fwname, &hdev->dev); 3636 if (err) { 3637 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3638 fwname, err); 3639 return err; 3640 } 3641 3642 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3643 3644 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3645 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3646 rver_patch = le16_to_cpu(rver->patch_version); 3647 3648 if (ver_rom & ~0xffffU) { 3649 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3650 rver_rom = rver_rom_high << 16 | rver_rom_low; 3651 } else { 3652 rver_rom = rver_rom_low; 3653 } 3654 3655 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3656 "firmware rome 0x%x build 0x%x", 3657 rver_rom, rver_patch, ver_rom, ver_patch); 3658 3659 /* Allow rampatch when the patch version equals the firmware version. 3660 * A firmware download may be aborted by a transient USB error (e.g. 3661 * disconnect) after the controller updates version info but before 3662 * completion. 3663 * Allowing equal versions enables re-flashing during recovery. 3664 */ 3665 if (rver_rom != ver_rom || rver_patch < ver_patch) { 3666 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3667 err = -EINVAL; 3668 goto done; 3669 } 3670 3671 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3672 3673 done: 3674 release_firmware(fw); 3675 3676 return err; 3677 } 3678 3679 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3680 const struct qca_version *ver) 3681 { 3682 u32 rom_version = le32_to_cpu(ver->rom_version); 3683 const char *variant, *fw_subdir; 3684 int len; 3685 u16 board_id; 3686 3687 fw_subdir = qca_get_fw_subdirectory(ver); 3688 board_id = qca_extract_board_id(ver); 3689 3690 switch (le32_to_cpu(ver->ram_version)) { 3691 case WCN6855_2_0_RAM_VERSION_GF: 3692 case WCN6855_2_1_RAM_VERSION_GF: 3693 variant = "_gf"; 3694 break; 3695 default: 3696 variant = NULL; 3697 break; 3698 } 3699 3700 if (fw_subdir) 3701 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x", 3702 fw_subdir, rom_version); 3703 else 3704 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x", 3705 rom_version); 3706 if (variant) 3707 len += snprintf(fwname + len, max_size - len, "%s", variant); 3708 if (board_id) 3709 len += snprintf(fwname + len, max_size - len, "_%04x", board_id); 3710 len += snprintf(fwname + len, max_size - len, ".bin"); 3711 } 3712 3713 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3714 struct qca_version *ver, 3715 const struct qca_device_info *info) 3716 { 3717 const struct firmware *fw; 3718 char fwname[80]; 3719 int err; 3720 3721 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3722 3723 err = request_firmware(&fw, fwname, &hdev->dev); 3724 if (err) { 3725 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3726 fwname, err); 3727 return err; 3728 } 3729 3730 bt_dev_info(hdev, "using NVM file: %s", fwname); 3731 3732 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3733 3734 release_firmware(fw); 3735 3736 return err; 3737 } 3738 3739 /* identify the ROM version and check whether patches are needed */ 3740 static bool btusb_qca_need_patch(struct usb_device *udev) 3741 { 3742 struct qca_version ver; 3743 3744 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3745 sizeof(ver))) 3746 return false; 3747 /* only low ROM versions need patches */ 3748 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3749 } 3750 3751 static int btusb_setup_qca(struct hci_dev *hdev) 3752 { 3753 struct btusb_data *btdata = hci_get_drvdata(hdev); 3754 struct usb_device *udev = btdata->udev; 3755 const struct qca_device_info *info = NULL; 3756 struct qca_version ver; 3757 u32 ver_rom; 3758 u8 status; 3759 int i, err; 3760 3761 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3762 sizeof(ver)); 3763 if (err) 3764 return err; 3765 3766 ver_rom = le32_to_cpu(ver.rom_version); 3767 3768 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3769 if (ver_rom == qca_devices_table[i].rom_version) 3770 info = &qca_devices_table[i]; 3771 } 3772 if (!info) { 3773 /* If the rom_version is not matched in the qca_devices_table 3774 * and the high ROM version is not zero, we assume this chip no 3775 * need to load the rampatch and nvm. 3776 */ 3777 if (ver_rom & ~0xffffU) 3778 return 0; 3779 3780 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3781 return -ENODEV; 3782 } 3783 3784 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3785 sizeof(status)); 3786 if (err) 3787 return err; 3788 3789 if (!(status & QCA_PATCH_UPDATED)) { 3790 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3791 if (err < 0) 3792 return err; 3793 } 3794 3795 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3796 sizeof(ver)); 3797 if (err) 3798 return err; 3799 3800 if (btdata->match_id->driver_info & BTUSB_QCA_WCN6855) { 3801 struct btqca_data *btqca_data = hci_get_priv(hdev); 3802 3803 btqca_data->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3804 btqca_data->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3805 } 3806 3807 if (!(status & QCA_SYSCFG_UPDATED)) { 3808 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3809 if (err < 0) 3810 return err; 3811 3812 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3813 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3814 * cause potential enable failure. 3815 */ 3816 if (info->rom_version >= 0x00130201) 3817 msleep(QCA_BT_RESET_WAIT_MS); 3818 } 3819 3820 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3821 * work with the likes of HSP/HFP mSBC. 3822 */ 3823 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 3824 3825 return 0; 3826 } 3827 3828 static inline int __set_diag_interface(struct hci_dev *hdev) 3829 { 3830 struct btusb_data *data = hci_get_drvdata(hdev); 3831 struct usb_interface *intf = data->diag; 3832 int ret; 3833 3834 if (!data->diag) 3835 return -ENODEV; 3836 3837 ret = usb_find_common_endpoints(intf->cur_altsetting, &data->diag_rx_ep, 3838 &data->diag_tx_ep, NULL, NULL); 3839 if (ret) { 3840 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3841 return -ENODEV; 3842 } 3843 3844 return 0; 3845 } 3846 3847 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3848 { 3849 struct btusb_data *data = hci_get_drvdata(hdev); 3850 struct sk_buff *skb; 3851 struct urb *urb; 3852 unsigned int pipe; 3853 3854 if (!data->diag_tx_ep) 3855 return ERR_PTR(-ENODEV); 3856 3857 urb = usb_alloc_urb(0, GFP_KERNEL); 3858 if (!urb) 3859 return ERR_PTR(-ENOMEM); 3860 3861 skb = bt_skb_alloc(2, GFP_KERNEL); 3862 if (!skb) { 3863 usb_free_urb(urb); 3864 return ERR_PTR(-ENOMEM); 3865 } 3866 3867 skb_put_u8(skb, 0xf0); 3868 skb_put_u8(skb, enable); 3869 3870 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 3871 3872 usb_fill_bulk_urb(urb, data->udev, pipe, 3873 skb->data, skb->len, btusb_tx_complete, skb); 3874 3875 skb->dev = (void *)hdev; 3876 3877 return urb; 3878 } 3879 3880 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 3881 { 3882 struct btusb_data *data = hci_get_drvdata(hdev); 3883 struct urb *urb; 3884 3885 if (!data->diag) 3886 return -ENODEV; 3887 3888 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3889 return -ENETDOWN; 3890 3891 urb = alloc_diag_urb(hdev, enable); 3892 if (IS_ERR(urb)) 3893 return PTR_ERR(urb); 3894 3895 return submit_or_queue_tx_urb(hdev, urb); 3896 } 3897 3898 #ifdef CONFIG_PM 3899 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 3900 { 3901 struct btusb_data *data = priv; 3902 3903 pm_wakeup_event(&data->udev->dev, 0); 3904 pm_system_wakeup(); 3905 3906 /* Disable only if not already disabled (keep it balanced) */ 3907 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3908 disable_irq_nosync(irq); 3909 disable_irq_wake(irq); 3910 } 3911 return IRQ_HANDLED; 3912 } 3913 3914 static const struct of_device_id btusb_match_table[] = { 3915 { .compatible = "usb1286,204e" }, 3916 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 3917 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 3918 { } 3919 }; 3920 MODULE_DEVICE_TABLE(of, btusb_match_table); 3921 3922 /* Use an oob wakeup pin? */ 3923 static int btusb_config_oob_wake(struct hci_dev *hdev) 3924 { 3925 struct btusb_data *data = hci_get_drvdata(hdev); 3926 struct device *dev = &data->udev->dev; 3927 int irq, ret; 3928 3929 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3930 3931 if (!of_match_device(btusb_match_table, dev)) 3932 return 0; 3933 3934 /* Move on if no IRQ specified */ 3935 irq = of_irq_get_byname(dev->of_node, "wakeup"); 3936 if (irq <= 0) { 3937 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 3938 return 0; 3939 } 3940 3941 irq_set_status_flags(irq, IRQ_NOAUTOEN); 3942 ret = request_irq(irq, btusb_oob_wake_handler, 0, "OOB Wake-on-BT", data); 3943 if (ret) { 3944 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 3945 return ret; 3946 } 3947 3948 ret = device_init_wakeup(dev, true); 3949 if (ret) { 3950 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 3951 goto err_free_irq; 3952 } 3953 3954 data->oob_wake_irq = irq; 3955 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 3956 3957 return 0; 3958 3959 err_free_irq: 3960 free_irq(irq, data); 3961 3962 return ret; 3963 } 3964 #else 3965 static inline int btusb_config_oob_wake(struct hci_dev *hdev) 3966 { 3967 return 0; 3968 } 3969 #endif 3970 3971 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 3972 { 3973 if (dmi_check_system(btusb_needs_reset_resume_table)) 3974 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3975 } 3976 3977 static bool btusb_wakeup(struct hci_dev *hdev) 3978 { 3979 struct btusb_data *data = hci_get_drvdata(hdev); 3980 3981 return device_may_wakeup(&data->udev->dev); 3982 } 3983 3984 static int btusb_shutdown_qca(struct hci_dev *hdev) 3985 { 3986 int err; 3987 3988 err = __hci_reset_sync(hdev); 3989 if (err) 3990 bt_dev_err(hdev, "HCI reset during shutdown failed"); 3991 3992 return err; 3993 } 3994 3995 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 3996 size_t count, loff_t *ppos) 3997 { 3998 struct btusb_data *data = file->private_data; 3999 char buf[3]; 4000 4001 buf[0] = data->poll_sync ? 'Y' : 'N'; 4002 buf[1] = '\n'; 4003 buf[2] = '\0'; 4004 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4005 } 4006 4007 static ssize_t force_poll_sync_write(struct file *file, 4008 const char __user *user_buf, 4009 size_t count, loff_t *ppos) 4010 { 4011 struct btusb_data *data = file->private_data; 4012 bool enable; 4013 int err; 4014 4015 err = kstrtobool_from_user(user_buf, count, &enable); 4016 if (err) 4017 return err; 4018 4019 /* Only allow changes while the adapter is down */ 4020 if (test_bit(HCI_UP, &data->hdev->flags)) 4021 return -EPERM; 4022 4023 if (data->poll_sync == enable) 4024 return -EALREADY; 4025 4026 data->poll_sync = enable; 4027 4028 return count; 4029 } 4030 4031 static const struct file_operations force_poll_sync_fops = { 4032 .owner = THIS_MODULE, 4033 .open = simple_open, 4034 .read = force_poll_sync_read, 4035 .write = force_poll_sync_write, 4036 .llseek = default_llseek, 4037 }; 4038 4039 #define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \ 4040 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000) 4041 #define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0 4042 struct btusb_hci_drv_rp_supported_altsettings { 4043 __u8 num; 4044 __u8 altsettings[]; 4045 } __packed; 4046 4047 #define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \ 4048 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001) 4049 #define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1 4050 struct btusb_hci_drv_cmd_switch_altsetting { 4051 __u8 altsetting; 4052 } __packed; 4053 4054 static const struct { 4055 u16 opcode; 4056 const char *desc; 4057 } btusb_hci_drv_supported_commands[] = { 4058 /* Common commands */ 4059 { HCI_DRV_OP_READ_INFO, "Read Info" }, 4060 4061 /* Driver specific commands */ 4062 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" }, 4063 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" }, 4064 }; 4065 static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data, 4066 u16 data_len) 4067 { 4068 struct hci_drv_rp_read_info *rp; 4069 size_t rp_size; 4070 int err, i; 4071 u16 opcode, num_supported_commands = 4072 ARRAY_SIZE(btusb_hci_drv_supported_commands); 4073 4074 rp_size = sizeof(*rp) + num_supported_commands * 2; 4075 4076 rp = kmalloc(rp_size, GFP_KERNEL); 4077 if (!rp) 4078 return -ENOMEM; 4079 4080 strscpy_pad(rp->driver_name, btusb_driver.name); 4081 4082 rp->num_supported_commands = cpu_to_le16(num_supported_commands); 4083 for (i = 0; i < num_supported_commands; i++) { 4084 opcode = btusb_hci_drv_supported_commands[i].opcode; 4085 bt_dev_info(hdev, 4086 "Supported HCI Drv command (0x%02x|0x%04x): %s", 4087 hci_opcode_ogf(opcode), 4088 hci_opcode_ocf(opcode), 4089 btusb_hci_drv_supported_commands[i].desc); 4090 rp->supported_commands[i] = cpu_to_le16(opcode); 4091 } 4092 4093 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO, 4094 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4095 4096 kfree(rp); 4097 return err; 4098 } 4099 4100 static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data, 4101 u16 data_len) 4102 { 4103 struct btusb_data *drvdata = hci_get_drvdata(hdev); 4104 struct btusb_hci_drv_rp_supported_altsettings *rp; 4105 size_t rp_size; 4106 int err; 4107 u8 i; 4108 4109 /* There are at most 7 alt (0 - 6) */ 4110 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL); 4111 if (!rp) 4112 return -ENOMEM; 4113 4114 rp->num = 0; 4115 if (!drvdata->isoc) 4116 goto done; 4117 4118 for (i = 0; i <= 6; i++) { 4119 if (btusb_find_altsetting(drvdata, i)) 4120 rp->altsettings[rp->num++] = i; 4121 } 4122 4123 done: 4124 rp_size = sizeof(*rp) + rp->num; 4125 4126 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, 4127 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4128 kfree(rp); 4129 return err; 4130 } 4131 4132 static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data, 4133 u16 data_len) 4134 { 4135 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data; 4136 u8 status; 4137 4138 if (cmd->altsetting > 6) { 4139 status = HCI_DRV_STATUS_INVALID_PARAMETERS; 4140 } else { 4141 if (btusb_switch_alt_setting(hdev, cmd->altsetting)) 4142 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR; 4143 else 4144 status = HCI_DRV_STATUS_SUCCESS; 4145 } 4146 4147 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, 4148 status); 4149 } 4150 4151 static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = { 4152 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE }, 4153 }; 4154 4155 static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = { 4156 { btusb_hci_drv_supported_altsettings, 4157 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE }, 4158 { btusb_hci_drv_switch_altsetting, 4159 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE }, 4160 }; 4161 4162 static struct hci_drv btusb_hci_drv = { 4163 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers), 4164 .common_handlers = btusb_hci_drv_common_handlers, 4165 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers), 4166 .specific_handlers = btusb_hci_drv_specific_handlers, 4167 }; 4168 4169 static int btusb_probe(struct usb_interface *intf, 4170 const struct usb_device_id *id) 4171 { 4172 struct gpio_desc *reset_gpio; 4173 struct btusb_data *data; 4174 struct hci_dev *hdev; 4175 unsigned ifnum_base; 4176 int err, priv_size = 0; 4177 4178 BT_DBG("intf %p id %p", intf, id); 4179 4180 if ((id->driver_info & BTUSB_IFNUM_2) && 4181 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4182 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4183 return -ENODEV; 4184 4185 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4186 4187 if (!id->driver_info) { 4188 const struct usb_device_id *match; 4189 4190 match = usb_match_id(intf, quirks_table); 4191 if (match) 4192 id = match; 4193 } 4194 4195 if (id->driver_info & BTUSB_IGNORE) 4196 return -ENODEV; 4197 4198 if (id->driver_info & BTUSB_ATH3012) { 4199 struct usb_device *udev = interface_to_usbdev(intf); 4200 4201 /* Old firmware would otherwise let ath3k driver load 4202 * patch and sysconfig files 4203 */ 4204 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4205 !btusb_qca_need_patch(udev)) 4206 return -ENODEV; 4207 } 4208 4209 data = kzalloc_obj(*data); 4210 if (!data) 4211 return -ENOMEM; 4212 4213 data->match_id = id; 4214 err = usb_find_common_endpoints(intf->cur_altsetting, &data->bulk_rx_ep, 4215 &data->bulk_tx_ep, &data->intr_ep, NULL); 4216 if (err) 4217 goto err_free_data; 4218 4219 if (id->driver_info & BTUSB_AMP) { 4220 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4221 data->cmdreq = 0x2b; 4222 } else { 4223 data->cmdreq_type = USB_TYPE_CLASS; 4224 data->cmdreq = 0x00; 4225 } 4226 4227 data->udev = interface_to_usbdev(intf); 4228 data->intf = intf; 4229 4230 INIT_WORK(&data->work, btusb_work); 4231 INIT_WORK(&data->waker, btusb_waker); 4232 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4233 4234 skb_queue_head_init(&data->acl_q); 4235 4236 init_usb_anchor(&data->deferred); 4237 init_usb_anchor(&data->tx_anchor); 4238 spin_lock_init(&data->txlock); 4239 4240 init_usb_anchor(&data->intr_anchor); 4241 init_usb_anchor(&data->bulk_anchor); 4242 init_usb_anchor(&data->isoc_anchor); 4243 init_usb_anchor(&data->diag_anchor); 4244 init_usb_anchor(&data->ctrl_anchor); 4245 spin_lock_init(&data->rxlock); 4246 4247 data->recv_event = hci_recv_frame; 4248 data->recv_bulk = btusb_recv_bulk; 4249 4250 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4251 /* Allocate extra space for Intel device */ 4252 priv_size += sizeof(struct btintel_data); 4253 4254 /* Override the rx handlers */ 4255 data->recv_event = btintel_recv_event; 4256 data->recv_bulk = btusb_recv_bulk_intel; 4257 } else if (id->driver_info & BTUSB_REALTEK) { 4258 /* Allocate extra space for Realtek device */ 4259 priv_size += sizeof(struct btrealtek_data); 4260 4261 data->recv_event = btusb_recv_event_realtek; 4262 } else if (id->driver_info & BTUSB_MEDIATEK) { 4263 /* Allocate extra space for Mediatek device */ 4264 priv_size += sizeof(struct btmtk_data); 4265 } else if (id->driver_info & BTUSB_QCA_WCN6855) { 4266 /* Allocate extra space for QCA WCN6855 device */ 4267 priv_size += sizeof(struct btqca_data); 4268 } 4269 4270 data->recv_acl = hci_recv_frame; 4271 4272 hdev = hci_alloc_dev_priv(priv_size); 4273 if (!hdev) { 4274 err = -ENOMEM; 4275 goto err_free_data; 4276 } 4277 4278 hdev->bus = HCI_USB; 4279 hci_set_drvdata(hdev, data); 4280 4281 data->hdev = hdev; 4282 4283 SET_HCIDEV_DEV(hdev, &intf->dev); 4284 4285 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4286 GPIOD_OUT_LOW); 4287 if (IS_ERR(reset_gpio)) { 4288 err = PTR_ERR(reset_gpio); 4289 goto err_free_hdev; 4290 } else if (reset_gpio) { 4291 data->reset_gpio = reset_gpio; 4292 } 4293 4294 hdev->open = btusb_open; 4295 hdev->close = btusb_close; 4296 hdev->flush = btusb_flush; 4297 hdev->send = btusb_send_frame; 4298 hdev->notify = btusb_notify; 4299 hdev->wakeup = btusb_wakeup; 4300 hdev->hci_drv = &btusb_hci_drv; 4301 4302 err = btusb_config_oob_wake(hdev); 4303 if (err) 4304 goto err_put_reset; 4305 4306 /* Marvell devices may need a specific chip configuration */ 4307 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4308 err = marvell_config_oob_wake(hdev); 4309 if (err) 4310 goto err_disable_wakeup; 4311 } 4312 4313 if (id->driver_info & BTUSB_CW6622) 4314 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4315 4316 if (id->driver_info & BTUSB_BCM2045) 4317 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4318 4319 if (id->driver_info & BTUSB_BCM92035) 4320 hdev->setup = btusb_setup_bcm92035; 4321 4322 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4323 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4324 hdev->manufacturer = 15; 4325 hdev->setup = btbcm_setup_patchram; 4326 hdev->set_diag = btusb_bcm_set_diag; 4327 hdev->set_bdaddr = btbcm_set_bdaddr; 4328 4329 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4330 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4331 } 4332 4333 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4334 (id->driver_info & BTUSB_BCM_APPLE)) { 4335 hdev->manufacturer = 15; 4336 hdev->setup = btbcm_setup_apple; 4337 hdev->set_diag = btusb_bcm_set_diag; 4338 4339 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4340 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4341 } 4342 4343 /* Combined Intel Device setup to support multiple setup routine */ 4344 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4345 err = btintel_configure_setup(hdev, btusb_driver.name); 4346 if (err) 4347 goto err_kill_tx_urbs; 4348 4349 /* Transport specific configuration */ 4350 hdev->send = btusb_send_frame_intel; 4351 hdev->reset = btusb_intel_reset; 4352 4353 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4354 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4355 4356 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4357 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4358 4359 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4360 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4361 } 4362 4363 if (id->driver_info & BTUSB_MARVELL) 4364 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4365 4366 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4367 (id->driver_info & BTUSB_MEDIATEK)) { 4368 hdev->setup = btusb_mtk_setup; 4369 hdev->shutdown = btusb_mtk_shutdown; 4370 hdev->manufacturer = 70; 4371 hdev->reset = btmtk_reset_sync; 4372 hdev->set_bdaddr = btmtk_set_bdaddr; 4373 hdev->send = btusb_send_frame_mtk; 4374 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 4375 hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP); 4376 data->recv_acl = btmtk_usb_recv_acl; 4377 data->recv_event = btmtk_recv_event; 4378 data->suspend = btmtk_usb_suspend; 4379 data->resume = btmtk_usb_resume; 4380 data->disconnect = btusb_mtk_disconnect; 4381 } 4382 4383 if (id->driver_info & BTUSB_SWAVE) { 4384 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE); 4385 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS); 4386 } 4387 4388 if (id->driver_info & BTUSB_INTEL_BOOT) { 4389 hdev->manufacturer = 2; 4390 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4391 } 4392 4393 if (id->driver_info & BTUSB_ATH3012) { 4394 data->setup_on_usb = btusb_setup_qca; 4395 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4396 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4397 hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER); 4398 } 4399 4400 if (id->driver_info & BTUSB_QCA_ROME) { 4401 data->setup_on_usb = btusb_setup_qca; 4402 hdev->shutdown = btusb_shutdown_qca; 4403 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4404 hdev->reset = btusb_qca_reset; 4405 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4406 btusb_check_needs_reset_resume(intf); 4407 } 4408 4409 if (id->driver_info & BTUSB_QCA_WCN6855) { 4410 struct btqca_data *btqca_data = hci_get_priv(hdev); 4411 4412 btqca_data->qca_dump.id_vendor = id->idVendor; 4413 btqca_data->qca_dump.id_product = id->idProduct; 4414 data->recv_event = btusb_recv_evt_qca; 4415 data->recv_acl = btusb_recv_acl_qca; 4416 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4417 data->setup_on_usb = btusb_setup_qca; 4418 hdev->classify_pkt_type = btusb_classify_qca_pkt_type; 4419 hdev->shutdown = btusb_shutdown_qca; 4420 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4421 hdev->reset = btusb_qca_reset; 4422 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4423 hci_set_msft_opcode(hdev, 0xFD70); 4424 } 4425 4426 if (id->driver_info & BTUSB_AMP) { 4427 /* AMP controllers do not support SCO packets */ 4428 data->isoc = NULL; 4429 } else { 4430 /* Interface orders are hardcoded in the specification */ 4431 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4432 data->isoc_ifnum = ifnum_base + 1; 4433 } 4434 4435 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4436 (id->driver_info & BTUSB_REALTEK)) { 4437 btrtl_set_driver_name(hdev, btusb_driver.name); 4438 hdev->setup = btusb_setup_realtek; 4439 hdev->shutdown = btrtl_shutdown_realtek; 4440 hdev->reset = btusb_rtl_reset; 4441 hdev->hw_error = btusb_rtl_hw_error; 4442 4443 /* Realtek devices need to set remote wakeup on auto-suspend */ 4444 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4445 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4446 } 4447 4448 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4449 /* Support is advertised, but not implemented */ 4450 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 4451 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER); 4452 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT); 4453 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN); 4454 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE); 4455 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN); 4456 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT); 4457 } 4458 4459 if (!reset) 4460 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4461 4462 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4463 if (!disable_scofix) 4464 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE); 4465 } 4466 4467 if (id->driver_info & BTUSB_BROKEN_ISOC) 4468 data->isoc = NULL; 4469 4470 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4471 hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED); 4472 4473 if (id->driver_info & BTUSB_INVALID_LE_STATES) 4474 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES); 4475 4476 if (id->driver_info & BTUSB_BROKEN_EXT_SCAN) 4477 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN); 4478 4479 if (id->driver_info & BTUSB_DIGIANSWER) { 4480 data->cmdreq_type = USB_TYPE_VENDOR; 4481 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4482 } 4483 4484 if (id->driver_info & BTUSB_CSR) { 4485 struct usb_device *udev = data->udev; 4486 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4487 4488 /* Old firmware would otherwise execute USB reset */ 4489 if (bcdDevice < 0x117) 4490 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4491 4492 /* This must be set first in case we disable it for fakes */ 4493 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4494 4495 /* Fake CSR devices with broken commands */ 4496 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4497 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4498 hdev->setup = btusb_setup_csr; 4499 } 4500 4501 if (id->driver_info & BTUSB_SNIFFER) { 4502 struct usb_device *udev = data->udev; 4503 4504 /* New sniffer firmware has crippled HCI interface */ 4505 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4506 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4507 } 4508 4509 if (id->driver_info & BTUSB_INTEL_BOOT) { 4510 /* A bug in the bootloader causes that interrupt interface is 4511 * only enabled after receiving SetInterface(0, AltSetting=0). 4512 */ 4513 err = usb_set_interface(data->udev, 0, 0); 4514 if (err < 0) { 4515 BT_ERR("failed to set interface 0, alt 0 %d", err); 4516 goto err_kill_tx_urbs; 4517 } 4518 } 4519 4520 if (data->isoc) { 4521 err = usb_driver_claim_interface(&btusb_driver, 4522 data->isoc, data); 4523 if (err < 0) 4524 goto err_kill_tx_urbs; 4525 } 4526 4527 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4528 if (!usb_driver_claim_interface(&btusb_driver, 4529 data->diag, data)) 4530 __set_diag_interface(hdev); 4531 else 4532 data->diag = NULL; 4533 } 4534 4535 if (enable_autosuspend) 4536 usb_enable_autosuspend(data->udev); 4537 4538 data->poll_sync = enable_poll_sync; 4539 4540 err = hci_register_dev(hdev); 4541 if (err < 0) 4542 goto err_release_siblings; 4543 4544 usb_set_intfdata(intf, data); 4545 4546 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4547 &force_poll_sync_fops); 4548 4549 return 0; 4550 4551 err_release_siblings: 4552 if (data->diag) { 4553 usb_set_intfdata(data->diag, NULL); 4554 usb_driver_release_interface(&btusb_driver, data->diag); 4555 } 4556 if (data->isoc) { 4557 usb_set_intfdata(data->isoc, NULL); 4558 usb_driver_release_interface(&btusb_driver, data->isoc); 4559 } 4560 err_kill_tx_urbs: 4561 usb_kill_anchored_urbs(&data->tx_anchor); 4562 err_disable_wakeup: 4563 if (data->oob_wake_irq) { 4564 device_init_wakeup(&data->udev->dev, false); 4565 free_irq(data->oob_wake_irq, data); 4566 } 4567 err_put_reset: 4568 if (data->reset_gpio) 4569 gpiod_put(data->reset_gpio); 4570 err_free_hdev: 4571 hci_free_dev(hdev); 4572 err_free_data: 4573 kfree(data); 4574 4575 return err; 4576 } 4577 4578 static void btusb_disconnect(struct usb_interface *intf) 4579 { 4580 struct btusb_data *data = usb_get_intfdata(intf); 4581 struct hci_dev *hdev; 4582 4583 BT_DBG("intf %p", intf); 4584 4585 if (!data) 4586 return; 4587 4588 hdev = data->hdev; 4589 usb_set_intfdata(data->intf, NULL); 4590 4591 if (data->isoc) 4592 usb_set_intfdata(data->isoc, NULL); 4593 4594 if (data->diag) 4595 usb_set_intfdata(data->diag, NULL); 4596 4597 if (data->disconnect) 4598 data->disconnect(hdev); 4599 4600 hci_unregister_dev(hdev); 4601 4602 if (data->oob_wake_irq) { 4603 device_init_wakeup(&data->udev->dev, false); 4604 free_irq(data->oob_wake_irq, data); 4605 } 4606 4607 if (data->reset_gpio) 4608 gpiod_put(data->reset_gpio); 4609 4610 if (test_and_clear_bit(BTUSB_RESET, &data->flags)) 4611 usb_autopm_put_interface_no_suspend(data->intf); 4612 4613 if (intf == data->intf) { 4614 if (data->isoc) 4615 usb_driver_release_interface(&btusb_driver, data->isoc); 4616 if (data->diag) 4617 usb_driver_release_interface(&btusb_driver, data->diag); 4618 } else if (intf == data->isoc) { 4619 if (data->diag) 4620 usb_driver_release_interface(&btusb_driver, data->diag); 4621 usb_driver_release_interface(&btusb_driver, data->intf); 4622 } else if (intf == data->diag) { 4623 if (data->isoc) 4624 usb_driver_release_interface(&btusb_driver, data->isoc); 4625 usb_driver_release_interface(&btusb_driver, data->intf); 4626 } 4627 4628 hci_free_dev(hdev); 4629 kfree(data); 4630 } 4631 4632 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4633 { 4634 struct btusb_data *data = usb_get_intfdata(intf); 4635 4636 BT_DBG("intf %p", intf); 4637 4638 /* 4639 * It is reported that remote wakeup events could sometimes cause some 4640 * adapters completely unresponsive. Resetting the xHCI root hub doesn't 4641 * help at all, and recovering from such a state needs a power cycle. 4642 * Since disabling remote wakeup simply causes the USB core to gate 4643 * runtime autosuspend as well due to needs_remote_wakeup == 1, let's do 4644 * this ourselves to make our life easier. The interface can be safely 4645 * autosuspended as long as remote wakeup is disabled, i.e., after 4646 * closing the HCI device. 4647 * 4648 * Don't auto-suspend if there are connections or discovery in progress. 4649 * 4650 * External suspend calls shall never fail. Specifically, a device with 4651 * broken remote wakeup may still take the advantage of remote wakeup in 4652 * order to wake up the system from sleep if userspace has enabled it as 4653 * a wakeup source. 4654 */ 4655 if (PMSG_IS_AUTO(message) && 4656 ((test_bit(BTUSB_WAKEUP_BROKEN, &data->flags) && data->intf->needs_remote_wakeup) || 4657 hci_conn_count(data->hdev) || hci_discovery_active(data->hdev))) 4658 return -EBUSY; 4659 4660 if (data->suspend_count++) 4661 return 0; 4662 4663 spin_lock_irq(&data->txlock); 4664 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4665 set_bit(BTUSB_SUSPENDING, &data->flags); 4666 spin_unlock_irq(&data->txlock); 4667 } else { 4668 spin_unlock_irq(&data->txlock); 4669 data->suspend_count--; 4670 return -EBUSY; 4671 } 4672 4673 cancel_work_sync(&data->work); 4674 4675 if (data->suspend) 4676 data->suspend(data->hdev); 4677 4678 btusb_stop_traffic(data); 4679 usb_kill_anchored_urbs(&data->tx_anchor); 4680 4681 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4682 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4683 enable_irq_wake(data->oob_wake_irq); 4684 enable_irq(data->oob_wake_irq); 4685 } 4686 4687 /* For global suspend, Realtek devices lose the loaded fw 4688 * in them. But for autosuspend, firmware should remain. 4689 * Actually, it depends on whether the usb host sends 4690 * set feature (enable wakeup) or not. 4691 */ 4692 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4693 if (PMSG_IS_AUTO(message) && 4694 device_can_wakeup(&data->udev->dev)) 4695 data->udev->do_remote_wakeup = 1; 4696 else if (!PMSG_IS_AUTO(message) && 4697 !device_may_wakeup(&data->udev->dev)) { 4698 data->udev->do_remote_wakeup = 0; 4699 data->udev->reset_resume = 1; 4700 } 4701 } 4702 4703 return 0; 4704 } 4705 4706 static void play_deferred(struct btusb_data *data) 4707 { 4708 struct urb *urb; 4709 int err; 4710 4711 while ((urb = usb_get_from_anchor(&data->deferred))) { 4712 usb_anchor_urb(urb, &data->tx_anchor); 4713 4714 err = usb_submit_urb(urb, GFP_ATOMIC); 4715 if (err < 0) { 4716 if (err != -EPERM && err != -ENODEV) 4717 BT_ERR("%s urb %p submission failed (%d)", 4718 data->hdev->name, urb, -err); 4719 kfree(urb->setup_packet); 4720 usb_unanchor_urb(urb); 4721 usb_free_urb(urb); 4722 break; 4723 } 4724 4725 data->tx_in_flight++; 4726 usb_free_urb(urb); 4727 } 4728 4729 /* Cleanup the rest deferred urbs. */ 4730 while ((urb = usb_get_from_anchor(&data->deferred))) { 4731 kfree(urb->setup_packet); 4732 usb_free_urb(urb); 4733 } 4734 } 4735 4736 static int btusb_resume(struct usb_interface *intf) 4737 { 4738 struct btusb_data *data = usb_get_intfdata(intf); 4739 struct hci_dev *hdev = data->hdev; 4740 int err = 0; 4741 4742 BT_DBG("intf %p", intf); 4743 4744 if (--data->suspend_count) 4745 return 0; 4746 4747 /* Disable only if not already disabled (keep it balanced) */ 4748 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4749 disable_irq(data->oob_wake_irq); 4750 disable_irq_wake(data->oob_wake_irq); 4751 } 4752 4753 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4754 goto done; 4755 4756 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4757 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4758 if (err < 0) { 4759 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4760 goto failed; 4761 } 4762 } 4763 4764 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4765 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4766 if (err < 0) { 4767 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4768 goto failed; 4769 } 4770 4771 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4772 } 4773 4774 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4775 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4776 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4777 else 4778 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4779 } 4780 4781 if (data->resume) 4782 data->resume(hdev); 4783 4784 spin_lock_irq(&data->txlock); 4785 play_deferred(data); 4786 clear_bit(BTUSB_SUSPENDING, &data->flags); 4787 spin_unlock_irq(&data->txlock); 4788 schedule_work(&data->work); 4789 4790 return 0; 4791 4792 failed: 4793 usb_scuttle_anchored_urbs(&data->deferred); 4794 done: 4795 spin_lock_irq(&data->txlock); 4796 clear_bit(BTUSB_SUSPENDING, &data->flags); 4797 spin_unlock_irq(&data->txlock); 4798 4799 return err; 4800 } 4801 4802 #ifdef CONFIG_DEV_COREDUMP 4803 static void btusb_coredump(struct device *dev) 4804 { 4805 struct btusb_data *data = dev_get_drvdata(dev); 4806 struct hci_dev *hdev = data->hdev; 4807 4808 if (hdev->dump.coredump) 4809 hdev->dump.coredump(hdev); 4810 } 4811 #endif 4812 4813 static struct usb_driver btusb_driver = { 4814 .name = "btusb", 4815 .probe = btusb_probe, 4816 .disconnect = btusb_disconnect, 4817 .suspend = pm_ptr(btusb_suspend), 4818 .resume = pm_ptr(btusb_resume), 4819 .id_table = btusb_table, 4820 .supports_autosuspend = 1, 4821 .disable_hub_initiated_lpm = 1, 4822 4823 #ifdef CONFIG_DEV_COREDUMP 4824 .driver = { 4825 .coredump = btusb_coredump, 4826 }, 4827 #endif 4828 }; 4829 4830 module_usb_driver(btusb_driver); 4831 4832 module_param(disable_scofix, bool, 0644); 4833 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4834 4835 module_param(force_scofix, bool, 0644); 4836 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4837 4838 module_param(enable_autosuspend, bool, 0644); 4839 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4840 4841 module_param(reset, bool, 0644); 4842 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4843 4844 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4845 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4846 MODULE_VERSION(VERSION); 4847 MODULE_LICENSE("GPL"); 4848