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 /* 75 * NXP IW610 (0471:0215): the composite device reports Bluetooth 76 * class at the whole-device level, so the generic entry below 77 * would also match this WiFi vendor interface. Ignore it here 78 * first so mwifiex-nxp can bind it instead. 79 */ 80 { USB_DEVICE_AND_INTERFACE_INFO(0x0471, 0x0215, 0xff, 0xff, 0xff), 81 .driver_info = BTUSB_IGNORE }, 82 83 /* Generic Bluetooth USB device */ 84 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 85 86 /* Generic Bluetooth AMP device */ 87 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 88 89 /* Generic Bluetooth USB interface */ 90 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 91 92 /* Apple-specific (Broadcom) devices */ 93 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 94 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 95 96 /* MediaTek MT76x0E */ 97 { USB_DEVICE(0x0e8d, 0x763f) }, 98 99 /* Broadcom SoftSailing reporting vendor specific */ 100 { USB_DEVICE(0x0a5c, 0x21e1) }, 101 102 /* Apple MacBookPro 7,1 */ 103 { USB_DEVICE(0x05ac, 0x8213) }, 104 105 /* Apple iMac11,1 */ 106 { USB_DEVICE(0x05ac, 0x8215) }, 107 108 /* Apple MacBookPro6,2 */ 109 { USB_DEVICE(0x05ac, 0x8218) }, 110 111 /* Apple MacBookAir3,1, MacBookAir3,2 */ 112 { USB_DEVICE(0x05ac, 0x821b) }, 113 114 /* Apple MacBookAir4,1 */ 115 { USB_DEVICE(0x05ac, 0x821f) }, 116 117 /* Apple MacBookPro8,2 */ 118 { USB_DEVICE(0x05ac, 0x821a) }, 119 120 /* Apple MacMini5,1 */ 121 { USB_DEVICE(0x05ac, 0x8281) }, 122 123 /* AVM BlueFRITZ! USB v2.0 */ 124 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 125 126 /* Bluetooth Ultraport Module from IBM */ 127 { USB_DEVICE(0x04bf, 0x030a) }, 128 129 /* ALPS Modules with non-standard id */ 130 { USB_DEVICE(0x044e, 0x3001) }, 131 { USB_DEVICE(0x044e, 0x3002) }, 132 133 /* Ericsson with non-standard id */ 134 { USB_DEVICE(0x0bdb, 0x1002) }, 135 136 /* Canyon CN-BTU1 with HID interfaces */ 137 { USB_DEVICE(0x0c10, 0x0000) }, 138 139 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 140 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 141 142 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 143 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 144 .driver_info = BTUSB_BCM_PATCHRAM }, 145 146 /* Broadcom BCM920703 (HTC Vive) */ 147 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 148 .driver_info = BTUSB_BCM_PATCHRAM }, 149 150 /* Foxconn - Hon Hai */ 151 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 152 .driver_info = BTUSB_BCM_PATCHRAM }, 153 154 /* Lite-On Technology - Broadcom based */ 155 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 156 .driver_info = BTUSB_BCM_PATCHRAM }, 157 158 /* Broadcom devices with vendor specific id */ 159 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 160 .driver_info = BTUSB_BCM_PATCHRAM }, 161 162 /* ASUSTek Computer - Broadcom based */ 163 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 164 .driver_info = BTUSB_BCM_PATCHRAM }, 165 166 /* Belkin F8065bf - Broadcom based */ 167 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 168 .driver_info = BTUSB_BCM_PATCHRAM }, 169 170 /* IMC Networks - Broadcom based */ 171 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 172 .driver_info = BTUSB_BCM_PATCHRAM }, 173 174 /* Dell Computer - Broadcom based */ 175 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 176 .driver_info = BTUSB_BCM_PATCHRAM }, 177 178 /* Toshiba Corp - Broadcom based */ 179 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 180 .driver_info = BTUSB_BCM_PATCHRAM }, 181 182 /* Intel Bluetooth USB Bootloader (RAM module) */ 183 { USB_DEVICE(0x8087, 0x0a5a), 184 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 185 186 { } /* Terminating entry */ 187 }; 188 189 MODULE_DEVICE_TABLE(usb, btusb_table); 190 191 static const struct usb_device_id quirks_table[] = { 192 /* CSR BlueCore devices */ 193 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 194 195 /* Broadcom BCM2033 without firmware */ 196 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 197 198 /* Broadcom BCM2045 devices */ 199 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 200 201 /* Atheros 3011 with sflash firmware */ 202 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 203 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 204 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 205 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 206 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 207 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 208 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 209 210 /* Atheros AR9285 Malbec with sflash firmware */ 211 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 212 213 /* Atheros 3012 with sflash firmware */ 214 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 255 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 256 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 258 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 259 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 260 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 261 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 262 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 263 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 264 265 /* Atheros AR5BBU12 with sflash firmware */ 266 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 267 268 /* Atheros AR5BBU12 with sflash firmware */ 269 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 270 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 271 272 /* QCA ROME chipset */ 273 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 274 BTUSB_WIDEBAND_SPEECH }, 275 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 276 BTUSB_WIDEBAND_SPEECH }, 277 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 278 BTUSB_WIDEBAND_SPEECH }, 279 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 280 BTUSB_WIDEBAND_SPEECH }, 281 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 282 BTUSB_WIDEBAND_SPEECH }, 283 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 284 BTUSB_WIDEBAND_SPEECH }, 285 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 286 BTUSB_WIDEBAND_SPEECH }, 287 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 288 BTUSB_WIDEBAND_SPEECH }, 289 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 290 BTUSB_WIDEBAND_SPEECH }, 291 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 292 BTUSB_WIDEBAND_SPEECH }, 293 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 294 BTUSB_WIDEBAND_SPEECH }, 295 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 296 BTUSB_WIDEBAND_SPEECH }, 297 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 298 BTUSB_WIDEBAND_SPEECH }, 299 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 300 BTUSB_WIDEBAND_SPEECH }, 301 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 302 BTUSB_WIDEBAND_SPEECH }, 303 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 304 BTUSB_WIDEBAND_SPEECH }, 305 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 306 BTUSB_WIDEBAND_SPEECH }, 307 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 308 BTUSB_WIDEBAND_SPEECH }, 309 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 310 BTUSB_WIDEBAND_SPEECH }, 311 { USB_DEVICE(0x13d3, 0x3503), .driver_info = BTUSB_QCA_ROME | 312 BTUSB_WIDEBAND_SPEECH }, 313 314 /* QCA WCN6855 chipset */ 315 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH }, 317 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 318 BTUSB_WIDEBAND_SPEECH }, 319 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 320 BTUSB_WIDEBAND_SPEECH }, 321 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH }, 323 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 324 BTUSB_WIDEBAND_SPEECH }, 325 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 326 BTUSB_WIDEBAND_SPEECH }, 327 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH }, 329 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 330 BTUSB_WIDEBAND_SPEECH }, 331 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 332 BTUSB_WIDEBAND_SPEECH }, 333 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH }, 335 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 336 BTUSB_WIDEBAND_SPEECH }, 337 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 338 BTUSB_WIDEBAND_SPEECH }, 339 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH }, 341 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 342 BTUSB_WIDEBAND_SPEECH }, 343 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 344 BTUSB_WIDEBAND_SPEECH }, 345 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH }, 347 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 348 BTUSB_WIDEBAND_SPEECH }, 349 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 350 BTUSB_WIDEBAND_SPEECH }, 351 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH }, 353 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 354 BTUSB_WIDEBAND_SPEECH }, 355 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 356 BTUSB_WIDEBAND_SPEECH }, 357 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH }, 359 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 360 BTUSB_WIDEBAND_SPEECH }, 361 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 362 BTUSB_WIDEBAND_SPEECH }, 363 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH }, 365 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 366 BTUSB_WIDEBAND_SPEECH }, 367 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 368 BTUSB_WIDEBAND_SPEECH }, 369 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH }, 371 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 372 BTUSB_WIDEBAND_SPEECH }, 373 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 374 BTUSB_WIDEBAND_SPEECH }, 375 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH }, 377 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 378 BTUSB_WIDEBAND_SPEECH }, 379 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 380 BTUSB_WIDEBAND_SPEECH }, 381 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH }, 383 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 384 BTUSB_WIDEBAND_SPEECH }, 385 { USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 | 386 BTUSB_WIDEBAND_SPEECH }, 387 388 /* QCA WCN785x chipset */ 389 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 390 BTUSB_WIDEBAND_SPEECH }, 391 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 | 392 BTUSB_WIDEBAND_SPEECH }, 393 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 | 394 BTUSB_WIDEBAND_SPEECH }, 395 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 | 396 BTUSB_WIDEBAND_SPEECH }, 397 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 | 398 BTUSB_WIDEBAND_SPEECH }, 399 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH }, 401 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 | 402 BTUSB_WIDEBAND_SPEECH }, 403 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 | 404 BTUSB_WIDEBAND_SPEECH }, 405 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 | 406 BTUSB_WIDEBAND_SPEECH }, 407 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH }, 409 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 | 410 BTUSB_WIDEBAND_SPEECH }, 411 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 | 412 BTUSB_WIDEBAND_SPEECH }, 413 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 | 414 BTUSB_WIDEBAND_SPEECH }, 415 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 | 416 BTUSB_WIDEBAND_SPEECH }, 417 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 | 418 BTUSB_WIDEBAND_SPEECH }, 419 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 | 420 BTUSB_WIDEBAND_SPEECH }, 421 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 | 422 BTUSB_WIDEBAND_SPEECH }, 423 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 | 424 BTUSB_WIDEBAND_SPEECH }, 425 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 | 426 BTUSB_WIDEBAND_SPEECH }, 427 428 /* Broadcom BCM2035 */ 429 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 430 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 431 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 432 433 /* Broadcom BCM2045 */ 434 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 435 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 437 /* IBM/Lenovo ThinkPad with Broadcom chip */ 438 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 439 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 441 /* HP laptop with Broadcom chip */ 442 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 443 444 /* Dell laptop with Broadcom chip */ 445 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 446 447 /* Dell Wireless 370 and 410 devices */ 448 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 449 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 450 451 /* Belkin F8T012 and F8T013 devices */ 452 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 453 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 454 455 /* Asus WL-BTD202 device */ 456 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 457 458 /* Kensington Bluetooth USB adapter */ 459 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 460 461 /* RTX Telecom based adapters with buggy SCO support */ 462 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 463 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 464 465 /* CONWISE Technology based adapters with buggy SCO support */ 466 { USB_DEVICE(0x0e5e, 0x6622), 467 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 468 469 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 470 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 471 472 /* Digianswer devices */ 473 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 474 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 475 476 /* CSR BlueCore Bluetooth Sniffer */ 477 { USB_DEVICE(0x0a12, 0x0002), 478 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 479 480 /* Frontline ComProbe Bluetooth Sniffer */ 481 { USB_DEVICE(0x16d3, 0x0002), 482 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 483 484 /* Marvell Bluetooth devices */ 485 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 486 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 487 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 488 489 /* 490 * NXP IW610 BT interfaces (Marvell-lineage silicon, same quirk as 491 * the 0x1286 entries above). Scoped to the BT interface class, 492 * not just VID/PID -- see the btusb_table entry above. 493 */ 494 { USB_DEVICE_AND_INTERFACE_INFO(0x0471, 0x0215, 0xe0, 0x01, 0x01), 495 .driver_info = BTUSB_MARVELL }, 496 497 /* Intel Bluetooth devices */ 498 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 499 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 500 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 501 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 502 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 503 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 504 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 505 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 506 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 507 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED }, 508 { USB_DEVICE(0x8087, 0x0040), .driver_info = BTUSB_INTEL_COMBINED }, /* Lizard Peak 2 */ 509 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 510 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 511 BTUSB_INTEL_NO_WBS_SUPPORT | 512 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 513 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 514 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 515 BTUSB_INTEL_NO_WBS_SUPPORT | 516 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 517 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 518 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 519 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 520 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 521 522 /* Other Intel Bluetooth devices */ 523 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 524 .driver_info = BTUSB_IGNORE }, 525 526 /* Realtek 8821CE Bluetooth devices */ 527 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 528 BTUSB_WIDEBAND_SPEECH }, 529 { USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK | 530 BTUSB_WIDEBAND_SPEECH }, 531 532 /* Realtek 8822CE Bluetooth devices */ 533 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 534 BTUSB_WIDEBAND_SPEECH }, 535 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 536 BTUSB_WIDEBAND_SPEECH }, 537 538 /* Realtek 8822CU Bluetooth devices */ 539 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 540 BTUSB_WIDEBAND_SPEECH }, 541 542 /* Realtek 8851BE Bluetooth devices */ 543 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK }, 544 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, 545 { USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK }, 546 { USB_DEVICE(0x0489, 0xe112), .driver_info = BTUSB_REALTEK | 547 BTUSB_WIDEBAND_SPEECH }, 548 549 /* Realtek 8851BU Bluetooth devices */ 550 { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK | 551 BTUSB_WIDEBAND_SPEECH }, 552 { USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK | 553 BTUSB_WIDEBAND_SPEECH }, 554 { USB_DEVICE(0x7392, 0xe611), .driver_info = BTUSB_REALTEK | 555 BTUSB_WIDEBAND_SPEECH }, 556 { USB_DEVICE(0x2c4e, 0x0128), .driver_info = BTUSB_REALTEK | 557 BTUSB_WIDEBAND_SPEECH }, 558 559 /* Realtek 8852AE Bluetooth devices */ 560 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 561 BTUSB_WIDEBAND_SPEECH }, 562 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 563 BTUSB_WIDEBAND_SPEECH }, 564 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 565 BTUSB_WIDEBAND_SPEECH }, 566 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 567 BTUSB_WIDEBAND_SPEECH }, 568 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 569 BTUSB_WIDEBAND_SPEECH }, 570 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 571 BTUSB_WIDEBAND_SPEECH }, 572 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 573 BTUSB_WIDEBAND_SPEECH }, 574 575 /* Realtek 8852CE Bluetooth devices */ 576 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 577 BTUSB_WIDEBAND_SPEECH }, 578 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 579 BTUSB_WIDEBAND_SPEECH }, 580 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 581 BTUSB_WIDEBAND_SPEECH }, 582 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 583 BTUSB_WIDEBAND_SPEECH }, 584 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 585 BTUSB_WIDEBAND_SPEECH }, 586 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 587 BTUSB_WIDEBAND_SPEECH }, 588 { USB_DEVICE(0x13d3, 0x3612), .driver_info = BTUSB_REALTEK | 589 BTUSB_WIDEBAND_SPEECH }, 590 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 591 BTUSB_WIDEBAND_SPEECH }, 592 593 /* Realtek 8852BE Bluetooth devices */ 594 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 595 BTUSB_WIDEBAND_SPEECH }, 596 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 597 BTUSB_WIDEBAND_SPEECH }, 598 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 599 BTUSB_WIDEBAND_SPEECH }, 600 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 601 BTUSB_WIDEBAND_SPEECH }, 602 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 603 BTUSB_WIDEBAND_SPEECH }, 604 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 605 BTUSB_WIDEBAND_SPEECH }, 606 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 607 BTUSB_WIDEBAND_SPEECH }, 608 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 609 BTUSB_WIDEBAND_SPEECH }, 610 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 611 BTUSB_WIDEBAND_SPEECH }, 612 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 613 BTUSB_WIDEBAND_SPEECH }, 614 615 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 616 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 617 BTUSB_WIDEBAND_SPEECH }, 618 { USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK | 619 BTUSB_WIDEBAND_SPEECH }, 620 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK | 621 BTUSB_WIDEBAND_SPEECH }, 622 { USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK | 623 BTUSB_WIDEBAND_SPEECH }, 624 625 /* Realtek 8922AE Bluetooth devices */ 626 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK | 627 BTUSB_WIDEBAND_SPEECH }, 628 { USB_DEVICE(0x0bda, 0xd922), .driver_info = BTUSB_REALTEK | 629 BTUSB_WIDEBAND_SPEECH }, 630 { USB_DEVICE(0x0bda, 0xd923), .driver_info = BTUSB_REALTEK | 631 BTUSB_WIDEBAND_SPEECH }, 632 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK | 633 BTUSB_WIDEBAND_SPEECH }, 634 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK | 635 BTUSB_WIDEBAND_SPEECH }, 636 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK | 637 BTUSB_WIDEBAND_SPEECH }, 638 639 /* Realtek 8761BU Bluetooth devices */ 640 { USB_DEVICE(0x0bda, 0xa728), .driver_info = BTUSB_REALTEK | 641 BTUSB_BROKEN_EXT_SCAN }, 642 643 /* Realtek Bluetooth devices */ 644 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 645 .driver_info = BTUSB_REALTEK }, 646 647 /* MediaTek Bluetooth devices */ 648 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 649 .driver_info = BTUSB_MEDIATEK | 650 BTUSB_WIDEBAND_SPEECH }, 651 652 /* Additional MediaTek MT7615E Bluetooth devices */ 653 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 654 655 /* Additional MediaTek MT7663 Bluetooth devices */ 656 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 657 BTUSB_WIDEBAND_SPEECH }, 658 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 659 BTUSB_WIDEBAND_SPEECH }, 660 661 /* Additional MediaTek MT7668 Bluetooth devices */ 662 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 663 BTUSB_WIDEBAND_SPEECH }, 664 665 /* Additional MediaTek MT7920 Bluetooth devices */ 666 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK | 667 BTUSB_WIDEBAND_SPEECH }, 668 { USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK | 669 BTUSB_WIDEBAND_SPEECH }, 670 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK | 671 BTUSB_WIDEBAND_SPEECH }, 672 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK | 673 BTUSB_WIDEBAND_SPEECH }, 674 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK | 675 BTUSB_WIDEBAND_SPEECH }, 676 { USB_DEVICE(0x0489, 0xe158), .driver_info = BTUSB_MEDIATEK | 677 BTUSB_WIDEBAND_SPEECH }, 678 679 /* Additional MediaTek MT7921 Bluetooth devices */ 680 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 681 BTUSB_WIDEBAND_SPEECH }, 682 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 683 BTUSB_WIDEBAND_SPEECH }, 684 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 685 BTUSB_WIDEBAND_SPEECH }, 686 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 687 BTUSB_WIDEBAND_SPEECH }, 688 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 689 BTUSB_WIDEBAND_SPEECH }, 690 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 691 BTUSB_WIDEBAND_SPEECH }, 692 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 693 BTUSB_WIDEBAND_SPEECH }, 694 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 695 BTUSB_WIDEBAND_SPEECH }, 696 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 697 BTUSB_WIDEBAND_SPEECH }, 698 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK | 699 BTUSB_WIDEBAND_SPEECH }, 700 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 701 BTUSB_WIDEBAND_SPEECH }, 702 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 703 BTUSB_WIDEBAND_SPEECH }, 704 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 705 BTUSB_WIDEBAND_SPEECH }, 706 /* MediaTek MT7902 Bluetooth devices */ 707 { USB_DEVICE(0x0489, 0xe156), .driver_info = BTUSB_MEDIATEK | 708 BTUSB_WIDEBAND_SPEECH }, 709 { USB_DEVICE(0x0e8d, 0x1ede), .driver_info = BTUSB_MEDIATEK | 710 BTUSB_WIDEBAND_SPEECH }, 711 { USB_DEVICE(0x13d3, 0x3579), .driver_info = BTUSB_MEDIATEK | 712 BTUSB_WIDEBAND_SPEECH }, 713 { USB_DEVICE(0x13d3, 0x3580), .driver_info = BTUSB_MEDIATEK | 714 BTUSB_WIDEBAND_SPEECH }, 715 { USB_DEVICE(0x13d3, 0x3594), .driver_info = BTUSB_MEDIATEK | 716 BTUSB_WIDEBAND_SPEECH }, 717 { USB_DEVICE(0x13d3, 0x3596), .driver_info = BTUSB_MEDIATEK | 718 BTUSB_WIDEBAND_SPEECH }, 719 /* MediaTek MT7922 Bluetooth devices */ 720 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 721 BTUSB_WIDEBAND_SPEECH }, 722 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK | 723 BTUSB_WIDEBAND_SPEECH }, 724 725 /* MediaTek MT7922A Bluetooth devices */ 726 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 727 BTUSB_WIDEBAND_SPEECH }, 728 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 729 BTUSB_WIDEBAND_SPEECH }, 730 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 731 BTUSB_WIDEBAND_SPEECH }, 732 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 733 BTUSB_WIDEBAND_SPEECH }, 734 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 735 BTUSB_WIDEBAND_SPEECH }, 736 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 737 BTUSB_WIDEBAND_SPEECH }, 738 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 739 BTUSB_WIDEBAND_SPEECH }, 740 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 741 BTUSB_WIDEBAND_SPEECH }, 742 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 743 BTUSB_WIDEBAND_SPEECH }, 744 { USB_DEVICE(0x0489, 0xe11d), .driver_info = BTUSB_MEDIATEK | 745 BTUSB_WIDEBAND_SPEECH }, 746 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK | 747 BTUSB_WIDEBAND_SPEECH }, 748 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK | 749 BTUSB_WIDEBAND_SPEECH }, 750 { USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK | 751 BTUSB_WIDEBAND_SPEECH }, 752 { USB_DEVICE(0x0489, 0xe174), .driver_info = BTUSB_MEDIATEK | 753 BTUSB_WIDEBAND_SPEECH }, 754 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 755 BTUSB_WIDEBAND_SPEECH }, 756 { USB_DEVICE(0x04ca, 0x3807), .driver_info = BTUSB_MEDIATEK | 757 BTUSB_WIDEBAND_SPEECH }, 758 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 759 BTUSB_WIDEBAND_SPEECH }, 760 { USB_DEVICE(0x0e8d, 0x223c), .driver_info = BTUSB_MEDIATEK | 761 BTUSB_WIDEBAND_SPEECH }, 762 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 763 BTUSB_WIDEBAND_SPEECH }, 764 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK | 765 BTUSB_WIDEBAND_SPEECH }, 766 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 767 BTUSB_WIDEBAND_SPEECH }, 768 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 769 BTUSB_WIDEBAND_SPEECH }, 770 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 771 BTUSB_WIDEBAND_SPEECH }, 772 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 773 BTUSB_WIDEBAND_SPEECH }, 774 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK | 775 BTUSB_WIDEBAND_SPEECH }, 776 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 777 BTUSB_WIDEBAND_SPEECH }, 778 779 /* Additional MediaTek MT7925 Bluetooth devices */ 780 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 781 BTUSB_WIDEBAND_SPEECH }, 782 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 783 BTUSB_WIDEBAND_SPEECH }, 784 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK | 785 BTUSB_WIDEBAND_SPEECH }, 786 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK | 787 BTUSB_WIDEBAND_SPEECH }, 788 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK | 789 BTUSB_WIDEBAND_SPEECH }, 790 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK | 791 BTUSB_WIDEBAND_SPEECH }, 792 { USB_DEVICE(0x0489, 0xe13a), .driver_info = BTUSB_MEDIATEK | 793 BTUSB_WIDEBAND_SPEECH }, 794 { USB_DEVICE(0x0489, 0xe0fa), .driver_info = BTUSB_MEDIATEK | 795 BTUSB_WIDEBAND_SPEECH }, 796 { USB_DEVICE(0x0489, 0xe10f), .driver_info = BTUSB_MEDIATEK | 797 BTUSB_WIDEBAND_SPEECH }, 798 { USB_DEVICE(0x0489, 0xe110), .driver_info = BTUSB_MEDIATEK | 799 BTUSB_WIDEBAND_SPEECH }, 800 { USB_DEVICE(0x0489, 0xe116), .driver_info = BTUSB_MEDIATEK | 801 BTUSB_WIDEBAND_SPEECH }, 802 { USB_DEVICE(0x13d3, 0x3588), .driver_info = BTUSB_MEDIATEK | 803 BTUSB_WIDEBAND_SPEECH }, 804 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK | 805 BTUSB_WIDEBAND_SPEECH }, 806 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK | 807 BTUSB_WIDEBAND_SPEECH }, 808 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK | 809 BTUSB_WIDEBAND_SPEECH }, 810 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK | 811 BTUSB_WIDEBAND_SPEECH }, 812 { USB_DEVICE(0x0e8d, 0x8c38), .driver_info = BTUSB_MEDIATEK | 813 BTUSB_WIDEBAND_SPEECH }, 814 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 815 BTUSB_WIDEBAND_SPEECH }, 816 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 817 BTUSB_WIDEBAND_SPEECH }, 818 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK | 819 BTUSB_WIDEBAND_SPEECH }, 820 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK | 821 BTUSB_WIDEBAND_SPEECH }, 822 { USB_DEVICE(0x13d3, 0x3609), .driver_info = BTUSB_MEDIATEK | 823 BTUSB_WIDEBAND_SPEECH }, 824 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK | 825 BTUSB_WIDEBAND_SPEECH }, 826 { USB_DEVICE(0x13d3, 0x3625), .driver_info = BTUSB_MEDIATEK | 827 BTUSB_WIDEBAND_SPEECH }, 828 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK | 829 BTUSB_WIDEBAND_SPEECH }, 830 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK | 831 BTUSB_WIDEBAND_SPEECH }, 832 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK | 833 BTUSB_WIDEBAND_SPEECH }, 834 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK | 835 BTUSB_WIDEBAND_SPEECH }, 836 837 /* Additional Realtek 8723AE Bluetooth devices */ 838 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 839 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 840 841 /* Additional Realtek 8723BE Bluetooth devices */ 842 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 843 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 844 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 845 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 846 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 847 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 848 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 849 850 /* Additional Realtek 8723BU Bluetooth devices */ 851 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 852 { USB_DEVICE(0x2c0a, 0x8761), .driver_info = BTUSB_REALTEK }, 853 854 /* Additional Realtek 8723DE Bluetooth devices */ 855 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 856 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 857 858 /* Additional Realtek 8761BUV Bluetooth devices */ 859 { USB_DEVICE(0x2c4e, 0x0115), .driver_info = BTUSB_REALTEK | 860 BTUSB_WIDEBAND_SPEECH }, 861 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 862 BTUSB_WIDEBAND_SPEECH }, 863 { USB_DEVICE(0x2357, 0x0607), .driver_info = BTUSB_REALTEK | 864 BTUSB_WIDEBAND_SPEECH }, 865 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 866 BTUSB_WIDEBAND_SPEECH }, 867 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 868 BTUSB_WIDEBAND_SPEECH }, 869 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 870 BTUSB_WIDEBAND_SPEECH }, 871 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 872 BTUSB_WIDEBAND_SPEECH }, 873 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 874 BTUSB_WIDEBAND_SPEECH }, 875 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 876 BTUSB_WIDEBAND_SPEECH }, 877 { USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK | 878 BTUSB_WIDEBAND_SPEECH }, 879 { USB_DEVICE(0x37ad, 0x0600), .driver_info = BTUSB_REALTEK | 880 BTUSB_WIDEBAND_SPEECH }, 881 882 /* Additional Realtek 8761CU Bluetooth devices */ 883 { USB_DEVICE(0x0b05, 0x1bef), .driver_info = BTUSB_REALTEK | 884 BTUSB_WIDEBAND_SPEECH }, 885 { USB_DEVICE(0x0b05, 0x1d70), .driver_info = BTUSB_REALTEK | 886 BTUSB_WIDEBAND_SPEECH }, 887 888 /* Additional Realtek 8821AE Bluetooth devices */ 889 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 890 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 891 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 892 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 893 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 894 895 /* Additional Realtek 8822BE Bluetooth devices */ 896 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 897 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 898 899 /* Additional Realtek 8822CE Bluetooth devices */ 900 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 901 BTUSB_WIDEBAND_SPEECH }, 902 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 903 BTUSB_WIDEBAND_SPEECH }, 904 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 905 BTUSB_WIDEBAND_SPEECH }, 906 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 907 BTUSB_WIDEBAND_SPEECH }, 908 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 909 BTUSB_WIDEBAND_SPEECH }, 910 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 911 BTUSB_WIDEBAND_SPEECH }, 912 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 913 BTUSB_WIDEBAND_SPEECH }, 914 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 915 BTUSB_WIDEBAND_SPEECH }, 916 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 917 BTUSB_WIDEBAND_SPEECH }, 918 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 919 BTUSB_WIDEBAND_SPEECH }, 920 { USB_DEVICE(0x1357, 0xc123), .driver_info = BTUSB_REALTEK | 921 BTUSB_WIDEBAND_SPEECH }, 922 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 923 BTUSB_WIDEBAND_SPEECH }, 924 925 /* Barrot Technology Bluetooth devices */ 926 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT }, 927 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT }, 928 929 /* Actions Semiconductor ATS2851 based devices */ 930 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 931 932 /* Silicon Wave based devices */ 933 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 934 935 { } /* Terminating entry */ 936 }; 937 938 /* The Bluetooth USB module build into some devices needs to be reset on resume, 939 * this is a problem with the platform (likely shutting off all power) not with 940 * the module itself. So we use a DMI list to match known broken platforms. 941 */ 942 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 943 { 944 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 945 .matches = { 946 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 947 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 948 }, 949 }, 950 { 951 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 952 .matches = { 953 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 954 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 955 }, 956 }, 957 { 958 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 959 .matches = { 960 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 961 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 962 }, 963 }, 964 {} 965 }; 966 967 struct qca_dump_info { 968 /* fields for dump collection */ 969 u16 id_vendor; 970 u16 id_product; 971 u32 fw_version; 972 u32 controller_id; 973 u32 ram_dump_size; 974 u16 ram_dump_seqno; 975 }; 976 977 struct btqca_data { 978 struct qca_dump_info qca_dump; 979 }; 980 981 #define BTUSB_MAX_ISOC_FRAMES 10 982 983 #define BTUSB_INTR_RUNNING 0 984 #define BTUSB_BULK_RUNNING 1 985 #define BTUSB_ISOC_RUNNING 2 986 #define BTUSB_SUSPENDING 3 987 #define BTUSB_DID_ISO_RESUME 4 988 #define BTUSB_BOOTLOADER 5 989 #define BTUSB_DOWNLOADING 6 990 #define BTUSB_FIRMWARE_LOADED 7 991 #define BTUSB_FIRMWARE_FAILED 8 992 #define BTUSB_BOOTING 9 993 #define BTUSB_DIAG_RUNNING 10 994 #define BTUSB_OOB_WAKE_ENABLED 11 995 #define BTUSB_HW_RESET_ACTIVE 12 996 #define BTUSB_TX_WAIT_VND_EVT 13 997 #define BTUSB_WAKEUP_AUTOSUSPEND 14 998 #define BTUSB_USE_ALT3_FOR_WBS 15 999 #define BTUSB_ALT6_CONTINUOUS_TX 16 1000 #define BTUSB_HW_SSR_ACTIVE 17 1001 #define BTUSB_WAKEUP_BROKEN 18 1002 #define BTUSB_RESET 19 1003 1004 struct btusb_data { 1005 struct hci_dev *hdev; 1006 struct usb_device *udev; 1007 struct usb_interface *intf; 1008 struct usb_interface *isoc; 1009 struct usb_interface *diag; 1010 unsigned isoc_ifnum; 1011 1012 unsigned long flags; 1013 1014 bool poll_sync; 1015 int intr_interval; 1016 struct work_struct work; 1017 struct work_struct waker; 1018 struct delayed_work rx_work; 1019 1020 struct sk_buff_head acl_q; 1021 1022 struct usb_anchor deferred; 1023 struct usb_anchor tx_anchor; 1024 int tx_in_flight; 1025 spinlock_t txlock; 1026 1027 struct usb_anchor intr_anchor; 1028 struct usb_anchor bulk_anchor; 1029 struct usb_anchor isoc_anchor; 1030 struct usb_anchor diag_anchor; 1031 struct usb_anchor ctrl_anchor; 1032 spinlock_t rxlock; 1033 1034 struct sk_buff *evt_skb; 1035 struct sk_buff *acl_skb; 1036 struct sk_buff *sco_skb; 1037 1038 struct usb_endpoint_descriptor *intr_ep; 1039 struct usb_endpoint_descriptor *bulk_tx_ep; 1040 struct usb_endpoint_descriptor *bulk_rx_ep; 1041 struct usb_endpoint_descriptor *isoc_tx_ep; 1042 struct usb_endpoint_descriptor *isoc_rx_ep; 1043 struct usb_endpoint_descriptor *diag_tx_ep; 1044 struct usb_endpoint_descriptor *diag_rx_ep; 1045 1046 struct gpio_desc *reset_gpio; 1047 1048 __u8 cmdreq_type; 1049 __u8 cmdreq; 1050 1051 unsigned int sco_num; 1052 unsigned int air_mode; 1053 bool usb_alt6_packet_flow; 1054 int isoc_altsetting; 1055 int suspend_count; 1056 const struct usb_device_id *match_id; 1057 1058 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 1059 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 1060 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 1061 1062 int (*setup_on_usb)(struct hci_dev *hdev); 1063 1064 int (*suspend)(struct hci_dev *hdev); 1065 int (*resume)(struct hci_dev *hdev); 1066 int (*disconnect)(struct hci_dev *hdev); 1067 1068 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 1069 }; 1070 1071 static void btusb_reset(struct hci_dev *hdev) 1072 { 1073 struct btusb_data *data; 1074 int err; 1075 1076 data = hci_get_drvdata(hdev); 1077 err = usb_autopm_get_interface(data->intf); 1078 if (err) { 1079 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 1080 return; 1081 } 1082 1083 if (test_and_set_bit(BTUSB_RESET, &data->flags)) 1084 usb_autopm_put_interface_no_suspend(data->intf); 1085 1086 bt_dev_err(hdev, "Resetting usb device."); 1087 usb_queue_reset_device(data->intf); 1088 } 1089 1090 static void btusb_intel_reset(struct hci_dev *hdev) 1091 { 1092 struct btusb_data *data = hci_get_drvdata(hdev); 1093 struct gpio_desc *reset_gpio = data->reset_gpio; 1094 struct btintel_data *intel_data = hci_get_priv(hdev); 1095 1096 if (intel_data->acpi_reset_method) { 1097 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 1098 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 1099 return; 1100 } 1101 1102 bt_dev_err(hdev, "Initiating acpi reset method"); 1103 /* If ACPI reset method fails, lets try with legacy GPIO 1104 * toggling 1105 */ 1106 if (!intel_data->acpi_reset_method(hdev)) { 1107 return; 1108 } 1109 } 1110 1111 if (!reset_gpio) { 1112 btusb_reset(hdev); 1113 return; 1114 } 1115 1116 /* 1117 * Toggle the hard reset line if the platform provides one. The reset 1118 * is going to yank the device off the USB and then replug. So doing 1119 * once is enough. The cleanup is handled correctly on the way out 1120 * (standard USB disconnect), and the new device is detected cleanly 1121 * and bound to the driver again like it should be. 1122 */ 1123 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1124 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1125 return; 1126 } 1127 1128 bt_dev_err(hdev, "Initiating HW reset via gpio"); 1129 gpiod_set_value_cansleep(reset_gpio, 1); 1130 msleep(100); 1131 gpiod_set_value_cansleep(reset_gpio, 0); 1132 } 1133 1134 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 1135 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 1136 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 1137 1138 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 1139 1140 struct rtk_dev_coredump_hdr { 1141 u8 type; 1142 u8 code; 1143 u8 reserved[2]; 1144 } __packed; 1145 1146 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 1147 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 1148 { 1149 struct sk_buff *skb; 1150 1151 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 1152 if (!skb) 1153 return; 1154 1155 skb_put_data(skb, hdr, sizeof(*hdr)); 1156 if (len) 1157 skb_put_data(skb, buf, len); 1158 1159 if (!hci_devcd_init(hdev, skb->len)) { 1160 hci_devcd_append(hdev, skb); 1161 hci_devcd_complete(hdev); 1162 } else { 1163 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 1164 kfree_skb(skb); 1165 } 1166 } 1167 1168 static void btusb_rtl_reset(struct hci_dev *hdev) 1169 { 1170 struct btusb_data *data = hci_get_drvdata(hdev); 1171 struct gpio_desc *reset_gpio = data->reset_gpio; 1172 struct rtk_dev_coredump_hdr hdr = { 1173 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1174 }; 1175 1176 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1177 1178 if (!reset_gpio) { 1179 btusb_reset(hdev); 1180 return; 1181 } 1182 1183 /* Toggle the hard reset line. The Realtek device is going to 1184 * yank itself off the USB and then replug. The cleanup is handled 1185 * correctly on the way out (standard USB disconnect), and the new 1186 * device is detected cleanly and bound to the driver again like 1187 * it should be. 1188 */ 1189 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1190 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1191 return; 1192 } 1193 1194 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1195 gpiod_set_value_cansleep(reset_gpio, 1); 1196 msleep(200); 1197 gpiod_set_value_cansleep(reset_gpio, 0); 1198 } 1199 1200 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1201 { 1202 struct rtk_dev_coredump_hdr hdr = { 1203 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1204 .code = code, 1205 }; 1206 1207 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1208 1209 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1210 } 1211 1212 static void btusb_qca_reset(struct hci_dev *hdev) 1213 { 1214 struct btusb_data *data = hci_get_drvdata(hdev); 1215 struct gpio_desc *reset_gpio = data->reset_gpio; 1216 1217 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1218 bt_dev_info(hdev, "Ramdump in progress, defer reset"); 1219 return; 1220 } 1221 1222 if (reset_gpio) { 1223 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1224 1225 /* Toggle the hard reset line. The qca bt device is going to 1226 * yank itself off the USB and then replug. The cleanup is handled 1227 * correctly on the way out (standard USB disconnect), and the new 1228 * device is detected cleanly and bound to the driver again like 1229 * it should be. 1230 */ 1231 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1232 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1233 return; 1234 } 1235 1236 gpiod_set_value_cansleep(reset_gpio, 0); 1237 msleep(200); 1238 gpiod_set_value_cansleep(reset_gpio, 1); 1239 1240 return; 1241 } 1242 1243 btusb_reset(hdev); 1244 } 1245 1246 static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb) 1247 { 1248 /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug 1249 * packets as ACL frames with connection handle 0x2EDC. These are not real 1250 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent 1251 * "ACL packet for unknown connection handle 3804" errors. 1252 */ 1253 if (skb->len >= 2) { 1254 u16 handle = get_unaligned_le16(skb->data); 1255 1256 if (handle == 0x2EDC) 1257 return HCI_DIAG_PKT; 1258 } 1259 1260 /* Use default packet type for other packets */ 1261 return hci_skb_pkt_type(skb); 1262 } 1263 1264 static inline void btusb_free_frags(struct btusb_data *data) 1265 { 1266 unsigned long flags; 1267 1268 spin_lock_irqsave(&data->rxlock, flags); 1269 1270 dev_kfree_skb_irq(data->evt_skb); 1271 data->evt_skb = NULL; 1272 1273 dev_kfree_skb_irq(data->acl_skb); 1274 data->acl_skb = NULL; 1275 1276 dev_kfree_skb_irq(data->sco_skb); 1277 data->sco_skb = NULL; 1278 1279 spin_unlock_irqrestore(&data->rxlock, flags); 1280 } 1281 1282 static int btusb_recv_event(struct hci_dev *hdev, struct sk_buff *skb) 1283 { 1284 struct btusb_data *data = hci_get_drvdata(hdev); 1285 1286 if (data->intr_interval) { 1287 /* Trigger dequeue immediately if an event is received */ 1288 schedule_delayed_work(&data->rx_work, 0); 1289 } 1290 1291 return data->recv_event(hdev, skb); 1292 } 1293 1294 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1295 { 1296 struct sk_buff *skb; 1297 unsigned long flags; 1298 int err = 0; 1299 1300 spin_lock_irqsave(&data->rxlock, flags); 1301 skb = data->evt_skb; 1302 1303 while (count) { 1304 int len; 1305 1306 if (!skb) { 1307 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1308 if (!skb) { 1309 err = -ENOMEM; 1310 break; 1311 } 1312 1313 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1314 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1315 } 1316 1317 len = min_t(uint, hci_skb_expect(skb), count); 1318 skb_put_data(skb, buffer, len); 1319 1320 count -= len; 1321 buffer += len; 1322 hci_skb_expect(skb) -= len; 1323 1324 if (skb->len == HCI_EVENT_HDR_SIZE) { 1325 /* Complete event header */ 1326 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1327 1328 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1329 kfree_skb(skb); 1330 skb = NULL; 1331 1332 err = -EILSEQ; 1333 break; 1334 } 1335 } 1336 1337 if (!hci_skb_expect(skb)) { 1338 /* Each chunk should correspond to at least 1 or more 1339 * events so if there are still bytes left that doesn't 1340 * constitute a new event this is likely a bug in the 1341 * controller. 1342 */ 1343 if (count && count < HCI_EVENT_HDR_SIZE) { 1344 bt_dev_warn(data->hdev, 1345 "Unexpected continuation: %d bytes", 1346 count); 1347 count = 0; 1348 } 1349 1350 /* Complete frame */ 1351 btusb_recv_event(data->hdev, skb); 1352 skb = NULL; 1353 } 1354 } 1355 1356 data->evt_skb = skb; 1357 spin_unlock_irqrestore(&data->rxlock, flags); 1358 1359 return err; 1360 } 1361 1362 static int btusb_recv_acl(struct hci_dev *hdev, struct sk_buff *skb) 1363 { 1364 struct btusb_data *data = hci_get_drvdata(hdev); 1365 1366 /* Only queue ACL packet if intr_interval is set as it means 1367 * force_poll_sync has been enabled. 1368 */ 1369 if (!data->intr_interval) 1370 return data->recv_acl(hdev, skb); 1371 1372 skb_queue_tail(&data->acl_q, skb); 1373 schedule_delayed_work(&data->rx_work, data->intr_interval); 1374 1375 return 0; 1376 } 1377 1378 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1379 { 1380 struct sk_buff *skb; 1381 unsigned long flags; 1382 int err = 0; 1383 1384 spin_lock_irqsave(&data->rxlock, flags); 1385 skb = data->acl_skb; 1386 1387 while (count) { 1388 int len; 1389 1390 if (!skb) { 1391 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1392 if (!skb) { 1393 err = -ENOMEM; 1394 break; 1395 } 1396 1397 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1398 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1399 } 1400 1401 len = min_t(uint, hci_skb_expect(skb), count); 1402 skb_put_data(skb, buffer, len); 1403 1404 count -= len; 1405 buffer += len; 1406 hci_skb_expect(skb) -= len; 1407 1408 if (skb->len == HCI_ACL_HDR_SIZE) { 1409 /* Complete ACL header */ 1410 hci_skb_expect(skb) = hci_acl_dlen(skb); 1411 1412 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1413 kfree_skb(skb); 1414 skb = NULL; 1415 1416 err = -EILSEQ; 1417 break; 1418 } 1419 } 1420 1421 if (!hci_skb_expect(skb)) { 1422 /* Complete frame */ 1423 btusb_recv_acl(data->hdev, skb); 1424 skb = NULL; 1425 } 1426 } 1427 1428 data->acl_skb = skb; 1429 spin_unlock_irqrestore(&data->rxlock, flags); 1430 1431 return err; 1432 } 1433 1434 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1435 struct hci_sco_hdr *hdr) 1436 { 1437 __u16 handle; 1438 1439 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1440 // Can't validate, userspace controls everything. 1441 return true; 1442 1443 /* 1444 * USB isochronous transfers are not designed to be reliable and may 1445 * lose fragments. When this happens, the next first fragment 1446 * encountered might actually be a continuation fragment. 1447 * Validate the handle to detect it and drop it, or else the upper 1448 * layer will get garbage for a while. 1449 */ 1450 1451 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1452 1453 switch (hci_conn_lookup_type(hdev, handle)) { 1454 case SCO_LINK: 1455 case ESCO_LINK: 1456 return true; 1457 default: 1458 return false; 1459 } 1460 } 1461 1462 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1463 { 1464 struct sk_buff *skb; 1465 unsigned long flags; 1466 int err = 0; 1467 1468 spin_lock_irqsave(&data->rxlock, flags); 1469 skb = data->sco_skb; 1470 1471 while (count) { 1472 int len; 1473 1474 if (!skb) { 1475 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1476 if (!skb) { 1477 err = -ENOMEM; 1478 break; 1479 } 1480 1481 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1482 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1483 } 1484 1485 len = min_t(uint, hci_skb_expect(skb), count); 1486 skb_put_data(skb, buffer, len); 1487 1488 count -= len; 1489 buffer += len; 1490 hci_skb_expect(skb) -= len; 1491 1492 if (skb->len == HCI_SCO_HDR_SIZE) { 1493 /* Complete SCO header */ 1494 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1495 1496 hci_skb_expect(skb) = hdr->dlen; 1497 1498 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1499 !btusb_validate_sco_handle(data->hdev, hdr)) { 1500 kfree_skb(skb); 1501 skb = NULL; 1502 1503 err = -EILSEQ; 1504 break; 1505 } 1506 } 1507 1508 if (!hci_skb_expect(skb)) { 1509 /* Complete frame */ 1510 hci_recv_frame(data->hdev, skb); 1511 skb = NULL; 1512 } 1513 } 1514 1515 data->sco_skb = skb; 1516 spin_unlock_irqrestore(&data->rxlock, flags); 1517 1518 return err; 1519 } 1520 1521 static void btusb_intr_complete(struct urb *urb) 1522 { 1523 struct hci_dev *hdev = urb->context; 1524 struct btusb_data *data = hci_get_drvdata(hdev); 1525 int err; 1526 1527 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1528 urb->actual_length); 1529 1530 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1531 return; 1532 1533 if (urb->status == 0) { 1534 hdev->stat.byte_rx += urb->actual_length; 1535 1536 if (btusb_recv_intr(data, urb->transfer_buffer, 1537 urb->actual_length) < 0) { 1538 bt_dev_err(hdev, "corrupted event packet"); 1539 hdev->stat.err_rx++; 1540 } 1541 } else if (urb->status == -ENOENT) { 1542 /* Avoid suspend failed when usb_kill_urb */ 1543 return; 1544 } 1545 1546 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1547 return; 1548 1549 usb_mark_last_busy(data->udev); 1550 usb_anchor_urb(urb, &data->intr_anchor); 1551 1552 err = usb_submit_urb(urb, GFP_ATOMIC); 1553 if (err < 0) { 1554 /* -EPERM: urb is being killed; 1555 * -ENODEV: device got disconnected 1556 */ 1557 if (err != -EPERM && err != -ENODEV) 1558 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1559 urb, -err); 1560 if (err != -EPERM) 1561 hci_cmd_sync_cancel(hdev, -err); 1562 usb_unanchor_urb(urb); 1563 } 1564 } 1565 1566 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1567 { 1568 struct btusb_data *data = hci_get_drvdata(hdev); 1569 struct urb *urb; 1570 unsigned char *buf; 1571 unsigned int pipe; 1572 int err, size; 1573 1574 BT_DBG("%s", hdev->name); 1575 1576 if (!data->intr_ep) 1577 return -ENODEV; 1578 1579 urb = usb_alloc_urb(0, mem_flags); 1580 if (!urb) 1581 return -ENOMEM; 1582 1583 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1584 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1585 /* Fake CSR devices don't seem to support sort-transter */ 1586 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1587 else 1588 /* Use maximum HCI Event size so the USB stack handles 1589 * ZPL/short-transfer automatically. 1590 */ 1591 size = HCI_MAX_EVENT_SIZE; 1592 1593 buf = kmalloc(size, mem_flags); 1594 if (!buf) { 1595 usb_free_urb(urb); 1596 return -ENOMEM; 1597 } 1598 1599 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1600 1601 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1602 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1603 1604 urb->transfer_flags |= URB_FREE_BUFFER; 1605 1606 usb_anchor_urb(urb, &data->intr_anchor); 1607 1608 err = usb_submit_urb(urb, mem_flags); 1609 if (err < 0) { 1610 if (err != -EPERM && err != -ENODEV) 1611 bt_dev_err(hdev, "urb %p submission failed (%d)", 1612 urb, -err); 1613 if (err != -EPERM) 1614 hci_cmd_sync_cancel(hdev, -err); 1615 usb_unanchor_urb(urb); 1616 } 1617 1618 /* Only initialize intr_interval if URB poll sync is enabled */ 1619 if (!data->poll_sync) 1620 goto done; 1621 1622 /* The units are frames (milliseconds) for full and low speed devices, 1623 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1624 * devices. 1625 * 1626 * This is done once on open/resume so it shouldn't change even if 1627 * force_poll_sync changes. 1628 */ 1629 switch (urb->dev->speed) { 1630 case USB_SPEED_SUPER_PLUS: 1631 case USB_SPEED_SUPER: /* units are 125us */ 1632 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1633 break; 1634 default: 1635 data->intr_interval = msecs_to_jiffies(urb->interval); 1636 break; 1637 } 1638 1639 done: 1640 usb_free_urb(urb); 1641 1642 return err; 1643 } 1644 1645 static void btusb_bulk_complete(struct urb *urb) 1646 { 1647 struct hci_dev *hdev = urb->context; 1648 struct btusb_data *data = hci_get_drvdata(hdev); 1649 int err; 1650 1651 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1652 urb->actual_length); 1653 1654 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1655 return; 1656 1657 if (urb->status == 0) { 1658 hdev->stat.byte_rx += urb->actual_length; 1659 1660 if (data->recv_bulk(data, urb->transfer_buffer, 1661 urb->actual_length) < 0) { 1662 bt_dev_err(hdev, "corrupted ACL packet"); 1663 hdev->stat.err_rx++; 1664 } 1665 } else if (urb->status == -ENOENT) { 1666 /* Avoid suspend failed when usb_kill_urb */ 1667 return; 1668 } 1669 1670 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1671 return; 1672 1673 usb_anchor_urb(urb, &data->bulk_anchor); 1674 usb_mark_last_busy(data->udev); 1675 1676 err = usb_submit_urb(urb, GFP_ATOMIC); 1677 if (err < 0) { 1678 /* -EPERM: urb is being killed; 1679 * -ENODEV: device got disconnected 1680 */ 1681 if (err != -EPERM && err != -ENODEV) 1682 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1683 urb, -err); 1684 usb_unanchor_urb(urb); 1685 } 1686 } 1687 1688 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1689 { 1690 struct btusb_data *data = hci_get_drvdata(hdev); 1691 struct urb *urb; 1692 unsigned char *buf; 1693 unsigned int pipe; 1694 int err, size = HCI_MAX_FRAME_SIZE; 1695 1696 BT_DBG("%s", hdev->name); 1697 1698 if (!data->bulk_rx_ep) 1699 return -ENODEV; 1700 1701 urb = usb_alloc_urb(0, mem_flags); 1702 if (!urb) 1703 return -ENOMEM; 1704 1705 buf = kmalloc(size, mem_flags); 1706 if (!buf) { 1707 usb_free_urb(urb); 1708 return -ENOMEM; 1709 } 1710 1711 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1712 1713 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1714 btusb_bulk_complete, hdev); 1715 1716 urb->transfer_flags |= URB_FREE_BUFFER; 1717 1718 usb_mark_last_busy(data->udev); 1719 usb_anchor_urb(urb, &data->bulk_anchor); 1720 1721 err = usb_submit_urb(urb, mem_flags); 1722 if (err < 0) { 1723 if (err != -EPERM && err != -ENODEV) 1724 bt_dev_err(hdev, "urb %p submission failed (%d)", 1725 urb, -err); 1726 usb_unanchor_urb(urb); 1727 } 1728 1729 usb_free_urb(urb); 1730 1731 return err; 1732 } 1733 1734 static void btusb_isoc_complete(struct urb *urb) 1735 { 1736 struct hci_dev *hdev = urb->context; 1737 struct btusb_data *data = hci_get_drvdata(hdev); 1738 int i, err; 1739 1740 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1741 urb->actual_length); 1742 1743 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1744 return; 1745 1746 if (urb->status == 0) { 1747 for (i = 0; i < urb->number_of_packets; i++) { 1748 unsigned int offset = urb->iso_frame_desc[i].offset; 1749 unsigned int length = urb->iso_frame_desc[i].actual_length; 1750 1751 if (urb->iso_frame_desc[i].status) 1752 continue; 1753 1754 hdev->stat.byte_rx += length; 1755 1756 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1757 length) < 0) { 1758 bt_dev_err(hdev, "corrupted SCO packet"); 1759 hdev->stat.err_rx++; 1760 } 1761 } 1762 } else if (urb->status == -ENOENT) { 1763 /* Avoid suspend failed when usb_kill_urb */ 1764 return; 1765 } 1766 1767 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1768 return; 1769 1770 usb_anchor_urb(urb, &data->isoc_anchor); 1771 1772 err = usb_submit_urb(urb, GFP_ATOMIC); 1773 if (err < 0) { 1774 /* -EPERM: urb is being killed; 1775 * -ENODEV: device got disconnected 1776 */ 1777 if (err != -EPERM && err != -ENODEV) 1778 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1779 urb, -err); 1780 usb_unanchor_urb(urb); 1781 } 1782 } 1783 1784 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1785 int mtu, struct btusb_data *data) 1786 { 1787 int i = 0, offset = 0; 1788 unsigned int interval; 1789 1790 BT_DBG("len %d mtu %d", len, mtu); 1791 1792 /* For mSBC ALT 6 settings some chips need to transmit the data 1793 * continuously without the zero length of USB packets. 1794 */ 1795 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1796 goto ignore_usb_alt6_packet_flow; 1797 1798 /* For mSBC ALT 6 setting the host will send the packet at continuous 1799 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1800 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1801 * To maintain the rate we send 63bytes of usb packets alternatively for 1802 * 7ms and 8ms to maintain the rate as 7.5ms. 1803 */ 1804 if (data->usb_alt6_packet_flow) { 1805 interval = 7; 1806 data->usb_alt6_packet_flow = false; 1807 } else { 1808 interval = 6; 1809 data->usb_alt6_packet_flow = true; 1810 } 1811 1812 for (i = 0; i < interval; i++) { 1813 urb->iso_frame_desc[i].offset = offset; 1814 urb->iso_frame_desc[i].length = offset; 1815 } 1816 1817 ignore_usb_alt6_packet_flow: 1818 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1819 urb->iso_frame_desc[i].offset = offset; 1820 urb->iso_frame_desc[i].length = len; 1821 i++; 1822 } 1823 1824 urb->number_of_packets = i; 1825 } 1826 1827 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1828 { 1829 int i, offset = 0; 1830 1831 BT_DBG("len %d mtu %d", len, mtu); 1832 1833 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1834 i++, offset += mtu, len -= mtu) { 1835 urb->iso_frame_desc[i].offset = offset; 1836 urb->iso_frame_desc[i].length = mtu; 1837 } 1838 1839 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1840 urb->iso_frame_desc[i].offset = offset; 1841 urb->iso_frame_desc[i].length = len; 1842 i++; 1843 } 1844 1845 urb->number_of_packets = i; 1846 } 1847 1848 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1849 { 1850 struct btusb_data *data = hci_get_drvdata(hdev); 1851 struct urb *urb; 1852 unsigned char *buf; 1853 unsigned int pipe; 1854 int err, size; 1855 1856 BT_DBG("%s", hdev->name); 1857 1858 if (!data->isoc_rx_ep) 1859 return -ENODEV; 1860 1861 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1862 if (!urb) 1863 return -ENOMEM; 1864 1865 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1866 BTUSB_MAX_ISOC_FRAMES; 1867 1868 buf = kmalloc(size, mem_flags); 1869 if (!buf) { 1870 usb_free_urb(urb); 1871 return -ENOMEM; 1872 } 1873 1874 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1875 1876 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1877 hdev, data->isoc_rx_ep->bInterval); 1878 1879 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1880 1881 __fill_isoc_descriptor(urb, size, 1882 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1883 1884 usb_anchor_urb(urb, &data->isoc_anchor); 1885 1886 err = usb_submit_urb(urb, mem_flags); 1887 if (err < 0) { 1888 if (err != -EPERM && err != -ENODEV) 1889 bt_dev_err(hdev, "urb %p submission failed (%d)", 1890 urb, -err); 1891 usb_unanchor_urb(urb); 1892 } 1893 1894 usb_free_urb(urb); 1895 1896 return err; 1897 } 1898 1899 static void btusb_diag_complete(struct urb *urb) 1900 { 1901 struct hci_dev *hdev = urb->context; 1902 struct btusb_data *data = hci_get_drvdata(hdev); 1903 int err; 1904 1905 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1906 urb->actual_length); 1907 1908 if (urb->status == 0) { 1909 struct sk_buff *skb; 1910 1911 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1912 if (skb) { 1913 skb_put_data(skb, urb->transfer_buffer, 1914 urb->actual_length); 1915 hci_recv_diag(hdev, skb); 1916 } 1917 } else if (urb->status == -ENOENT) { 1918 /* Avoid suspend failed when usb_kill_urb */ 1919 return; 1920 } 1921 1922 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1923 return; 1924 1925 usb_anchor_urb(urb, &data->diag_anchor); 1926 usb_mark_last_busy(data->udev); 1927 1928 err = usb_submit_urb(urb, GFP_ATOMIC); 1929 if (err < 0) { 1930 /* -EPERM: urb is being killed; 1931 * -ENODEV: device got disconnected 1932 */ 1933 if (err != -EPERM && err != -ENODEV) 1934 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1935 urb, -err); 1936 usb_unanchor_urb(urb); 1937 } 1938 } 1939 1940 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1941 { 1942 struct btusb_data *data = hci_get_drvdata(hdev); 1943 struct urb *urb; 1944 unsigned char *buf; 1945 unsigned int pipe; 1946 int err, size = HCI_MAX_FRAME_SIZE; 1947 1948 BT_DBG("%s", hdev->name); 1949 1950 if (!data->diag_rx_ep) 1951 return -ENODEV; 1952 1953 urb = usb_alloc_urb(0, mem_flags); 1954 if (!urb) 1955 return -ENOMEM; 1956 1957 buf = kmalloc(size, mem_flags); 1958 if (!buf) { 1959 usb_free_urb(urb); 1960 return -ENOMEM; 1961 } 1962 1963 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1964 1965 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1966 btusb_diag_complete, hdev); 1967 1968 urb->transfer_flags |= URB_FREE_BUFFER; 1969 1970 usb_mark_last_busy(data->udev); 1971 usb_anchor_urb(urb, &data->diag_anchor); 1972 1973 err = usb_submit_urb(urb, mem_flags); 1974 if (err < 0) { 1975 if (err != -EPERM && err != -ENODEV) 1976 bt_dev_err(hdev, "urb %p submission failed (%d)", 1977 urb, -err); 1978 usb_unanchor_urb(urb); 1979 } 1980 1981 usb_free_urb(urb); 1982 1983 return err; 1984 } 1985 1986 static void btusb_tx_complete(struct urb *urb) 1987 { 1988 struct sk_buff *skb = urb->context; 1989 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1990 struct btusb_data *data = hci_get_drvdata(hdev); 1991 unsigned long flags; 1992 1993 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1994 urb->actual_length); 1995 1996 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1997 goto done; 1998 1999 if (!urb->status) { 2000 hdev->stat.byte_tx += urb->transfer_buffer_length; 2001 } else { 2002 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 2003 hci_cmd_sync_cancel(hdev, -urb->status); 2004 hdev->stat.err_tx++; 2005 } 2006 2007 done: 2008 spin_lock_irqsave(&data->txlock, flags); 2009 data->tx_in_flight--; 2010 spin_unlock_irqrestore(&data->txlock, flags); 2011 2012 kfree(urb->setup_packet); 2013 2014 kfree_skb(skb); 2015 } 2016 2017 static void btusb_isoc_tx_complete(struct urb *urb) 2018 { 2019 struct sk_buff *skb = urb->context; 2020 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 2021 2022 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 2023 urb->actual_length); 2024 2025 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2026 goto done; 2027 2028 if (!urb->status) 2029 hdev->stat.byte_tx += urb->transfer_buffer_length; 2030 else 2031 hdev->stat.err_tx++; 2032 2033 done: 2034 kfree(urb->setup_packet); 2035 2036 kfree_skb(skb); 2037 } 2038 2039 static int btusb_open(struct hci_dev *hdev) 2040 { 2041 struct btusb_data *data = hci_get_drvdata(hdev); 2042 int err; 2043 2044 BT_DBG("%s", hdev->name); 2045 2046 err = usb_autopm_get_interface(data->intf); 2047 if (err < 0) 2048 return err; 2049 2050 /* Patching USB firmware files prior to starting any URBs of HCI path 2051 * It is more safe to use USB bulk channel for downloading USB patch 2052 */ 2053 if (data->setup_on_usb) { 2054 err = data->setup_on_usb(hdev); 2055 if (err < 0) 2056 goto setup_fail; 2057 } 2058 2059 data->intf->needs_remote_wakeup = 1; 2060 2061 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 2062 goto done; 2063 2064 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 2065 if (err < 0) 2066 goto failed; 2067 2068 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2069 if (err < 0) { 2070 usb_kill_anchored_urbs(&data->intr_anchor); 2071 goto failed; 2072 } 2073 2074 set_bit(BTUSB_BULK_RUNNING, &data->flags); 2075 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2076 2077 if (data->diag) { 2078 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 2079 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 2080 } 2081 2082 done: 2083 usb_autopm_put_interface(data->intf); 2084 return 0; 2085 2086 failed: 2087 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2088 setup_fail: 2089 usb_autopm_put_interface(data->intf); 2090 return err; 2091 } 2092 2093 static void btusb_stop_traffic(struct btusb_data *data) 2094 { 2095 usb_kill_anchored_urbs(&data->intr_anchor); 2096 usb_kill_anchored_urbs(&data->bulk_anchor); 2097 usb_kill_anchored_urbs(&data->isoc_anchor); 2098 usb_kill_anchored_urbs(&data->diag_anchor); 2099 usb_kill_anchored_urbs(&data->ctrl_anchor); 2100 } 2101 2102 static void btusb_prepare_reset(struct hci_dev *hdev) 2103 { 2104 struct btusb_data *data = hci_get_drvdata(hdev); 2105 2106 btusb_stop_traffic(data); 2107 usb_kill_anchored_urbs(&data->tx_anchor); 2108 } 2109 2110 static int btusb_close(struct hci_dev *hdev) 2111 { 2112 struct btusb_data *data = hci_get_drvdata(hdev); 2113 int err; 2114 2115 BT_DBG("%s", hdev->name); 2116 2117 cancel_work_sync(&data->work); 2118 cancel_work_sync(&data->waker); 2119 2120 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2121 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 2122 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2123 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 2124 2125 btusb_stop_traffic(data); 2126 2127 /* rx_work must only be canceled once the URBs that can rearm it are 2128 * gone, and it must be canceled synchronously since btusb_disconnect() 2129 * frees the btusb_data it dereferences right after hci_unregister_dev(). 2130 */ 2131 cancel_delayed_work_sync(&data->rx_work); 2132 2133 skb_queue_purge(&data->acl_q); 2134 2135 btusb_free_frags(data); 2136 2137 err = usb_autopm_get_interface(data->intf); 2138 if (err < 0) 2139 goto failed; 2140 2141 data->intf->needs_remote_wakeup = 0; 2142 2143 /* Enable remote wake up for auto-suspend */ 2144 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 2145 data->intf->needs_remote_wakeup = 1; 2146 2147 usb_autopm_put_interface(data->intf); 2148 2149 failed: 2150 usb_scuttle_anchored_urbs(&data->deferred); 2151 return 0; 2152 } 2153 2154 static int btusb_flush(struct hci_dev *hdev) 2155 { 2156 struct btusb_data *data = hci_get_drvdata(hdev); 2157 2158 BT_DBG("%s", hdev->name); 2159 2160 cancel_delayed_work_sync(&data->rx_work); 2161 2162 skb_queue_purge(&data->acl_q); 2163 2164 usb_kill_anchored_urbs(&data->tx_anchor); 2165 btusb_free_frags(data); 2166 2167 return 0; 2168 } 2169 2170 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 2171 { 2172 struct btusb_data *data = hci_get_drvdata(hdev); 2173 struct usb_ctrlrequest *dr; 2174 struct urb *urb; 2175 unsigned int pipe; 2176 2177 urb = usb_alloc_urb(0, GFP_KERNEL); 2178 if (!urb) 2179 return ERR_PTR(-ENOMEM); 2180 2181 dr = kmalloc_obj(*dr); 2182 if (!dr) { 2183 usb_free_urb(urb); 2184 return ERR_PTR(-ENOMEM); 2185 } 2186 2187 dr->bRequestType = data->cmdreq_type; 2188 dr->bRequest = data->cmdreq; 2189 dr->wIndex = 0; 2190 dr->wValue = 0; 2191 dr->wLength = __cpu_to_le16(skb->len); 2192 2193 pipe = usb_sndctrlpipe(data->udev, 0x00); 2194 2195 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2196 skb->data, skb->len, btusb_tx_complete, skb); 2197 2198 skb->dev = (void *)hdev; 2199 2200 return urb; 2201 } 2202 2203 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2204 { 2205 struct btusb_data *data = hci_get_drvdata(hdev); 2206 struct urb *urb; 2207 unsigned int pipe; 2208 2209 if (!data->bulk_tx_ep) 2210 return ERR_PTR(-ENODEV); 2211 2212 urb = usb_alloc_urb(0, GFP_KERNEL); 2213 if (!urb) 2214 return ERR_PTR(-ENOMEM); 2215 2216 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2217 2218 usb_fill_bulk_urb(urb, data->udev, pipe, 2219 skb->data, skb->len, btusb_tx_complete, skb); 2220 2221 skb->dev = (void *)hdev; 2222 2223 return urb; 2224 } 2225 2226 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2227 { 2228 struct btusb_data *data = hci_get_drvdata(hdev); 2229 struct urb *urb; 2230 unsigned int pipe; 2231 2232 if (!data->isoc_tx_ep) 2233 return ERR_PTR(-ENODEV); 2234 2235 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2236 if (!urb) 2237 return ERR_PTR(-ENOMEM); 2238 2239 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2240 2241 usb_fill_int_urb(urb, data->udev, pipe, 2242 skb->data, skb->len, btusb_isoc_tx_complete, 2243 skb, data->isoc_tx_ep->bInterval); 2244 2245 urb->transfer_flags = URB_ISO_ASAP; 2246 2247 if (data->isoc_altsetting == 6) 2248 __fill_isoc_descriptor_msbc(urb, skb->len, 2249 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2250 data); 2251 else 2252 __fill_isoc_descriptor(urb, skb->len, 2253 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2254 skb->dev = (void *)hdev; 2255 2256 return urb; 2257 } 2258 2259 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2260 { 2261 struct btusb_data *data = hci_get_drvdata(hdev); 2262 int err; 2263 2264 usb_anchor_urb(urb, &data->tx_anchor); 2265 2266 err = usb_submit_urb(urb, GFP_KERNEL); 2267 if (err < 0) { 2268 if (err != -EPERM && err != -ENODEV) 2269 bt_dev_err(hdev, "urb %p submission failed (%d)", 2270 urb, -err); 2271 kfree(urb->setup_packet); 2272 usb_unanchor_urb(urb); 2273 } else { 2274 usb_mark_last_busy(data->udev); 2275 } 2276 2277 usb_free_urb(urb); 2278 return err; 2279 } 2280 2281 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2282 { 2283 struct btusb_data *data = hci_get_drvdata(hdev); 2284 unsigned long flags; 2285 bool suspending; 2286 2287 spin_lock_irqsave(&data->txlock, flags); 2288 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2289 if (!suspending) 2290 data->tx_in_flight++; 2291 spin_unlock_irqrestore(&data->txlock, flags); 2292 2293 if (!suspending) 2294 return submit_tx_urb(hdev, urb); 2295 2296 usb_anchor_urb(urb, &data->deferred); 2297 schedule_work(&data->waker); 2298 2299 usb_free_urb(urb); 2300 return 0; 2301 } 2302 2303 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2304 { 2305 struct urb *urb; 2306 2307 BT_DBG("%s", hdev->name); 2308 2309 switch (hci_skb_pkt_type(skb)) { 2310 case HCI_COMMAND_PKT: 2311 urb = alloc_ctrl_urb(hdev, skb); 2312 if (IS_ERR(urb)) 2313 return PTR_ERR(urb); 2314 2315 hdev->stat.cmd_tx++; 2316 return submit_or_queue_tx_urb(hdev, urb); 2317 2318 case HCI_ACLDATA_PKT: 2319 urb = alloc_bulk_urb(hdev, skb); 2320 if (IS_ERR(urb)) 2321 return PTR_ERR(urb); 2322 2323 hdev->stat.acl_tx++; 2324 return submit_or_queue_tx_urb(hdev, urb); 2325 2326 case HCI_SCODATA_PKT: 2327 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2328 hci_conn_num(hdev, SCO_LINK) < 1) 2329 return -ENODEV; 2330 2331 urb = alloc_isoc_urb(hdev, skb); 2332 if (IS_ERR(urb)) 2333 return PTR_ERR(urb); 2334 2335 hdev->stat.sco_tx++; 2336 return submit_tx_urb(hdev, urb); 2337 2338 case HCI_ISODATA_PKT: 2339 urb = alloc_bulk_urb(hdev, skb); 2340 if (IS_ERR(urb)) 2341 return PTR_ERR(urb); 2342 2343 return submit_or_queue_tx_urb(hdev, urb); 2344 } 2345 2346 return -EILSEQ; 2347 } 2348 2349 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2350 { 2351 struct btusb_data *data = hci_get_drvdata(hdev); 2352 2353 BT_DBG("%s evt %d", hdev->name, evt); 2354 2355 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2356 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2357 data->air_mode = evt; 2358 schedule_work(&data->work); 2359 } 2360 } 2361 2362 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2363 { 2364 struct btusb_data *data = hci_get_drvdata(hdev); 2365 struct usb_interface *intf = data->isoc; 2366 struct usb_endpoint_descriptor *ep_desc; 2367 int i, err; 2368 2369 if (!data->isoc) 2370 return -ENODEV; 2371 2372 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2373 if (err < 0) { 2374 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2375 return err; 2376 } 2377 2378 data->isoc_altsetting = altsetting; 2379 2380 data->isoc_tx_ep = NULL; 2381 data->isoc_rx_ep = NULL; 2382 2383 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2384 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2385 2386 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2387 data->isoc_tx_ep = ep_desc; 2388 continue; 2389 } 2390 2391 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2392 data->isoc_rx_ep = ep_desc; 2393 continue; 2394 } 2395 } 2396 2397 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2398 bt_dev_err(hdev, "invalid SCO descriptors"); 2399 return -ENODEV; 2400 } 2401 2402 return 0; 2403 } 2404 2405 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2406 { 2407 struct btusb_data *data = hci_get_drvdata(hdev); 2408 int err; 2409 2410 if (data->isoc_altsetting != new_alts) { 2411 unsigned long flags; 2412 2413 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2414 usb_kill_anchored_urbs(&data->isoc_anchor); 2415 2416 /* When isochronous alternate setting needs to be 2417 * changed, because SCO connection has been added 2418 * or removed, a packet fragment may be left in the 2419 * reassembling state. This could lead to wrongly 2420 * assembled fragments. 2421 * 2422 * Clear outstanding fragment when selecting a new 2423 * alternate setting. 2424 */ 2425 spin_lock_irqsave(&data->rxlock, flags); 2426 dev_kfree_skb_irq(data->sco_skb); 2427 data->sco_skb = NULL; 2428 spin_unlock_irqrestore(&data->rxlock, flags); 2429 2430 err = __set_isoc_interface(hdev, new_alts); 2431 if (err < 0) 2432 return err; 2433 } 2434 2435 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2436 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2437 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2438 else 2439 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2440 } 2441 2442 return 0; 2443 } 2444 2445 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2446 int alt) 2447 { 2448 struct usb_interface *intf = data->isoc; 2449 int i; 2450 2451 BT_DBG("Looking for Alt no :%d", alt); 2452 2453 if (!intf) 2454 return NULL; 2455 2456 for (i = 0; i < intf->num_altsetting; i++) { 2457 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2458 return &intf->altsetting[i]; 2459 } 2460 2461 return NULL; 2462 } 2463 2464 static void btusb_work(struct work_struct *work) 2465 { 2466 struct btusb_data *data = container_of(work, struct btusb_data, work); 2467 struct hci_dev *hdev = data->hdev; 2468 int new_alts = 0; 2469 int err; 2470 2471 if (data->sco_num > 0) { 2472 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2473 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2474 if (err < 0) { 2475 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2476 usb_kill_anchored_urbs(&data->isoc_anchor); 2477 return; 2478 } 2479 2480 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2481 } 2482 2483 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2484 if (hdev->voice_setting & 0x0020) { 2485 static const int alts[3] = { 2, 4, 5 }; 2486 unsigned int sco_idx; 2487 2488 sco_idx = min_t(unsigned int, data->sco_num - 1, 2489 ARRAY_SIZE(alts) - 1); 2490 new_alts = alts[sco_idx]; 2491 } else { 2492 new_alts = data->sco_num; 2493 } 2494 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2495 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2496 * many adapters do not support it. Alt 1 appears to 2497 * work for all adapters that do not have alt 6, and 2498 * which work with WBS at all. Some devices prefer 2499 * alt 3 (HCI payload >= 60 Bytes let air packet 2500 * data satisfy 60 bytes), requiring 2501 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2502 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2503 */ 2504 if (btusb_find_altsetting(data, 6)) 2505 new_alts = 6; 2506 else if (btusb_find_altsetting(data, 3) && 2507 hdev->sco_mtu >= 72 && 2508 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2509 new_alts = 3; 2510 else 2511 new_alts = 1; 2512 } 2513 2514 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2515 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2516 } else { 2517 usb_kill_anchored_urbs(&data->isoc_anchor); 2518 2519 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2520 __set_isoc_interface(hdev, 0); 2521 2522 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2523 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2524 } 2525 } 2526 2527 static void btusb_waker(struct work_struct *work) 2528 { 2529 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2530 int err; 2531 2532 err = usb_autopm_get_interface(data->intf); 2533 if (err < 0) 2534 return; 2535 2536 usb_autopm_put_interface(data->intf); 2537 } 2538 2539 static void btusb_rx_work(struct work_struct *work) 2540 { 2541 struct btusb_data *data = container_of(work, struct btusb_data, 2542 rx_work.work); 2543 struct sk_buff *skb; 2544 2545 /* Dequeue ACL data received during the interval */ 2546 while ((skb = skb_dequeue(&data->acl_q))) 2547 data->recv_acl(data->hdev, skb); 2548 } 2549 2550 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2551 { 2552 struct sk_buff *skb; 2553 u8 val = 0x00; 2554 2555 BT_DBG("%s", hdev->name); 2556 2557 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2558 if (IS_ERR(skb)) 2559 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2560 else 2561 kfree_skb(skb); 2562 2563 return 0; 2564 } 2565 2566 static int btusb_setup_csr(struct hci_dev *hdev) 2567 { 2568 struct btusb_data *data = hci_get_drvdata(hdev); 2569 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2570 struct hci_rp_read_local_version *rp; 2571 struct sk_buff *skb; 2572 bool is_fake = false; 2573 int ret; 2574 2575 BT_DBG("%s", hdev->name); 2576 2577 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2578 HCI_INIT_TIMEOUT); 2579 if (IS_ERR(skb)) { 2580 int err = PTR_ERR(skb); 2581 2582 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2583 return err; 2584 } 2585 2586 rp = skb_pull_data(skb, sizeof(*rp)); 2587 if (!rp) { 2588 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2589 kfree_skb(skb); 2590 return -EIO; 2591 } 2592 2593 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2594 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2595 2596 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2597 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2598 le16_to_cpu(rp->manufacturer)); 2599 2600 /* Detect a wide host of Chinese controllers that aren't CSR. 2601 * 2602 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2603 * 2604 * The main thing they have in common is that these are really popular low-cost 2605 * options that support newer Bluetooth versions but rely on heavy VID/PID 2606 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2607 * 2608 * We detect actual CSR devices by checking that the HCI manufacturer code 2609 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2610 * HCI rev values always match. As they both store the firmware number. 2611 */ 2612 if (le16_to_cpu(rp->manufacturer) != 10 || 2613 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2614 is_fake = true; 2615 2616 /* Known legit CSR firmware build numbers and their supported BT versions: 2617 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2618 * - 1.2 (0x2) -> 0x04d9, 0x0529 2619 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2620 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2621 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2622 * 2623 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2624 * support BT 1.1 only; so it's a dead giveaway when some 2625 * third-party BT 4.0 dongle reuses it. 2626 */ 2627 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2628 rp->hci_ver > BLUETOOTH_VER_1_1) 2629 is_fake = true; 2630 2631 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2632 rp->hci_ver > BLUETOOTH_VER_1_2) 2633 is_fake = true; 2634 2635 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2636 rp->hci_ver > BLUETOOTH_VER_2_0) 2637 is_fake = true; 2638 2639 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2640 rp->hci_ver > BLUETOOTH_VER_2_1) 2641 is_fake = true; 2642 2643 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2644 rp->hci_ver > BLUETOOTH_VER_4_0) 2645 is_fake = true; 2646 2647 /* Other clones which beat all the above checks */ 2648 else if (bcdDevice == 0x0134 && 2649 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2650 rp->hci_ver == BLUETOOTH_VER_2_0) 2651 is_fake = true; 2652 2653 if (is_fake) { 2654 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2655 2656 /* Generally these clones have big discrepancies between 2657 * advertised features and what's actually supported. 2658 * Probably will need to be expanded in the future; 2659 * without these the controller will lock up. 2660 */ 2661 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 2662 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 2663 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL); 2664 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER); 2665 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING); 2666 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE); 2667 2668 /* Clear the reset quirk since this is not an actual 2669 * early Bluetooth 1.1 device from CSR. 2670 */ 2671 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 2672 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 2673 2674 /* 2675 * Special workaround for these BT 4.0 chip clones, and potentially more: 2676 * 2677 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2678 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2679 * 2680 * These controllers are really messed-up. 2681 * 2682 * 1. Their bulk RX endpoint will never report any data unless 2683 * the device was suspended at least once (yes, really). 2684 * 2. They will not wakeup when autosuspended and receiving data 2685 * on their bulk RX endpoint from e.g. a keyboard or mouse 2686 * (IOW remote-wakeup support is broken for the bulk endpoint). 2687 * 2688 * To fix 1. enable runtime-suspend, force-suspend the 2689 * HCI and then wake-it up by disabling runtime-suspend. 2690 * 2691 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2692 * will still be autosuspended when it is not open. 2693 * 2694 * -- 2695 * 2696 * Because these are widespread problems we prefer generic solutions; so 2697 * apply this initialization quirk to every controller that gets here, 2698 * it should be harmless. The alternative is to not work at all. 2699 */ 2700 pm_runtime_allow(&data->udev->dev); 2701 2702 ret = pm_runtime_suspend(&data->udev->dev); 2703 if (ret >= 0) 2704 msleep(200); 2705 else 2706 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2707 2708 pm_runtime_forbid(&data->udev->dev); 2709 2710 device_set_wakeup_capable(&data->udev->dev, false); 2711 2712 /* Re-enable autosuspend if this was requested */ 2713 if (enable_autosuspend) 2714 usb_enable_autosuspend(data->udev); 2715 } 2716 2717 kfree_skb(skb); 2718 2719 return 0; 2720 } 2721 2722 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2723 { 2724 struct sk_buff *skb; 2725 struct hci_event_hdr *hdr; 2726 struct hci_ev_cmd_complete *evt; 2727 2728 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2729 if (!skb) 2730 return -ENOMEM; 2731 2732 hdr = skb_put(skb, sizeof(*hdr)); 2733 hdr->evt = HCI_EV_CMD_COMPLETE; 2734 hdr->plen = sizeof(*evt) + 1; 2735 2736 evt = skb_put(skb, sizeof(*evt)); 2737 evt->ncmd = 0x01; 2738 evt->opcode = cpu_to_le16(opcode); 2739 2740 skb_put_u8(skb, 0x00); 2741 2742 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2743 2744 return hci_recv_frame(hdev, skb); 2745 } 2746 2747 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2748 int count) 2749 { 2750 struct hci_dev *hdev = data->hdev; 2751 2752 /* When the device is in bootloader mode, then it can send 2753 * events via the bulk endpoint. These events are treated the 2754 * same way as the ones received from the interrupt endpoint. 2755 */ 2756 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2757 return btusb_recv_intr(data, buffer, count); 2758 2759 return btusb_recv_bulk(data, buffer, count); 2760 } 2761 2762 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2763 { 2764 struct urb *urb; 2765 2766 BT_DBG("%s", hdev->name); 2767 2768 switch (hci_skb_pkt_type(skb)) { 2769 case HCI_COMMAND_PKT: 2770 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2771 struct hci_command_hdr *cmd = (void *)skb->data; 2772 __u16 opcode = le16_to_cpu(cmd->opcode); 2773 2774 /* When in bootloader mode and the command 0xfc09 2775 * is received, it needs to be send down the 2776 * bulk endpoint. So allocate a bulk URB instead. 2777 */ 2778 if (opcode == 0xfc09) 2779 urb = alloc_bulk_urb(hdev, skb); 2780 else 2781 urb = alloc_ctrl_urb(hdev, skb); 2782 2783 /* When the BTINTEL_HCI_OP_RESET command is issued to 2784 * boot into the operational firmware, it will actually 2785 * not send a command complete event. To keep the flow 2786 * control working inject that event here. 2787 */ 2788 if (opcode == BTINTEL_HCI_OP_RESET) 2789 inject_cmd_complete(hdev, opcode); 2790 } else { 2791 urb = alloc_ctrl_urb(hdev, skb); 2792 } 2793 if (IS_ERR(urb)) 2794 return PTR_ERR(urb); 2795 2796 hdev->stat.cmd_tx++; 2797 return submit_or_queue_tx_urb(hdev, urb); 2798 2799 case HCI_ACLDATA_PKT: 2800 urb = alloc_bulk_urb(hdev, skb); 2801 if (IS_ERR(urb)) 2802 return PTR_ERR(urb); 2803 2804 hdev->stat.acl_tx++; 2805 return submit_or_queue_tx_urb(hdev, urb); 2806 2807 case HCI_SCODATA_PKT: 2808 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2809 hci_conn_num(hdev, SCO_LINK) < 1) 2810 return -ENODEV; 2811 2812 urb = alloc_isoc_urb(hdev, skb); 2813 if (IS_ERR(urb)) 2814 return PTR_ERR(urb); 2815 2816 hdev->stat.sco_tx++; 2817 return submit_tx_urb(hdev, urb); 2818 2819 case HCI_ISODATA_PKT: 2820 urb = alloc_bulk_urb(hdev, skb); 2821 if (IS_ERR(urb)) 2822 return PTR_ERR(urb); 2823 2824 return submit_or_queue_tx_urb(hdev, urb); 2825 } 2826 2827 return -EILSEQ; 2828 } 2829 2830 static int btusb_setup_realtek(struct hci_dev *hdev) 2831 { 2832 struct btusb_data *data = hci_get_drvdata(hdev); 2833 int ret; 2834 2835 ret = btrtl_setup_realtek(hdev); 2836 2837 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2838 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2839 2840 return ret; 2841 } 2842 2843 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2844 { 2845 if (skb->len >= HCI_EVENT_HDR_SIZE + 1 && 2846 skb->data[0] == HCI_EV_VENDOR && 2847 skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2848 struct rtk_dev_coredump_hdr hdr = { 2849 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2850 }; 2851 2852 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2853 skb->len); 2854 2855 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2856 kfree_skb(skb); 2857 2858 return 0; 2859 } 2860 2861 return hci_recv_frame(hdev, skb); 2862 } 2863 2864 static void btusb_mtk_claim_iso_intf(struct btusb_data *data) 2865 { 2866 struct btmtk_data *btmtk_data; 2867 int err; 2868 2869 if (!data->hdev) 2870 return; 2871 2872 btmtk_data = hci_get_priv(data->hdev); 2873 if (!btmtk_data) 2874 return; 2875 2876 if (!btmtk_data->isopkt_intf) { 2877 bt_dev_err(data->hdev, "Can't claim NULL iso interface"); 2878 return; 2879 } 2880 2881 /* 2882 * The function usb_driver_claim_interface() is documented to need 2883 * locks held if it's not called from a probe routine. The code here 2884 * is called from the hci_power_on workqueue, so grab the lock. 2885 */ 2886 device_lock(&btmtk_data->isopkt_intf->dev); 2887 err = usb_driver_claim_interface(&btusb_driver, 2888 btmtk_data->isopkt_intf, data); 2889 device_unlock(&btmtk_data->isopkt_intf->dev); 2890 if (err < 0) { 2891 btmtk_data->isopkt_intf = NULL; 2892 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err); 2893 return; 2894 } 2895 2896 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2897 init_usb_anchor(&btmtk_data->isopkt_anchor); 2898 } 2899 2900 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev) 2901 { 2902 struct btmtk_data *btmtk_data; 2903 2904 if (!hdev) 2905 return; 2906 2907 btmtk_data = hci_get_priv(hdev); 2908 if (!btmtk_data) 2909 return; 2910 2911 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2912 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); 2913 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); 2914 2915 if (btmtk_data->isopkt_skb) { 2916 dev_kfree_skb_irq(btmtk_data->isopkt_skb); 2917 btmtk_data->isopkt_skb = NULL; 2918 } 2919 2920 if (btmtk_data->isopkt_intf) { 2921 usb_set_intfdata(btmtk_data->isopkt_intf, NULL); 2922 usb_driver_release_interface(&btusb_driver, 2923 btmtk_data->isopkt_intf); 2924 btmtk_data->isopkt_intf = NULL; 2925 } 2926 } 2927 2928 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2929 } 2930 2931 static int btusb_mtk_disconnect(struct hci_dev *hdev) 2932 { 2933 /* This function describes the specific additional steps taken by MediaTek 2934 * when Bluetooth usb driver's resume function is called. 2935 */ 2936 btusb_mtk_release_iso_intf(hdev); 2937 2938 return 0; 2939 } 2940 2941 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2942 { 2943 struct btusb_data *data = hci_get_drvdata(hdev); 2944 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2945 int err; 2946 2947 /* It's MediaTek specific bluetooth reset mechanism via USB */ 2948 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) { 2949 bt_dev_err(hdev, "last reset failed? Not resetting again"); 2950 return -EBUSY; 2951 } 2952 2953 err = usb_autopm_get_interface(data->intf); 2954 if (err < 0) { 2955 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 2956 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 2957 return err; 2958 } 2959 2960 /* Release MediaTek ISO data interface */ 2961 btusb_mtk_release_iso_intf(hdev); 2962 2963 btusb_prepare_reset(hdev); 2964 2965 /* Toggle the hard reset line. The MediaTek device is going to 2966 * yank itself off the USB and then replug. The cleanup is handled 2967 * correctly on the way out (standard USB disconnect), and the new 2968 * device is detected cleanly and bound to the driver again like 2969 * it should be. 2970 */ 2971 if (data->reset_gpio) { 2972 gpiod_set_value_cansleep(data->reset_gpio, 1); 2973 msleep(200); 2974 gpiod_set_value_cansleep(data->reset_gpio, 0); 2975 return 0; 2976 } 2977 2978 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); 2979 2980 if (test_and_set_bit(BTUSB_RESET, &data->flags)) { 2981 bt_dev_err(hdev, "last usb reset failed? Resetting again"); 2982 usb_autopm_put_interface_no_suspend(data->intf); 2983 } 2984 2985 usb_queue_reset_device(data->intf); 2986 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 2987 2988 return err; 2989 } 2990 2991 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb) 2992 { 2993 struct urb *urb; 2994 2995 BT_DBG("%s", hdev->name); 2996 2997 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) { 2998 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); 2999 if (IS_ERR(urb)) 3000 return PTR_ERR(urb); 3001 3002 return submit_or_queue_tx_urb(hdev, urb); 3003 } else { 3004 return btusb_send_frame(hdev, skb); 3005 } 3006 } 3007 3008 static inline bool platform_is_ryzen(void) 3009 { 3010 #ifdef CONFIG_X86 3011 return boot_cpu_has(X86_FEATURE_ZEN); 3012 #else 3013 return false; 3014 #endif 3015 } 3016 3017 static inline bool is_direct_child_of_root_hub(struct usb_device *udev) 3018 { 3019 return udev->parent == udev->bus->root_hub; 3020 } 3021 3022 static int btusb_mtk_setup(struct hci_dev *hdev) 3023 { 3024 struct btusb_data *data = hci_get_drvdata(hdev); 3025 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 3026 int err; 3027 3028 /* MediaTek WMT vendor cmd requiring below USB resources to 3029 * complete the handshake. 3030 */ 3031 btmtk_data->drv_name = btusb_driver.name; 3032 btmtk_data->intf = data->intf; 3033 btmtk_data->udev = data->udev; 3034 btmtk_data->ctrl_anchor = &data->ctrl_anchor; 3035 btmtk_data->reset_sync = btusb_mtk_reset; 3036 3037 /* Claim ISO data interface and endpoint */ 3038 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 3039 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); 3040 btusb_mtk_claim_iso_intf(data); 3041 } 3042 3043 err = btmtk_usb_setup(hdev); 3044 if (err) 3045 return err; 3046 3047 switch (btmtk_data->dev_id) { 3048 case 0x7922: 3049 case 0x7925: 3050 /* 3051 * All reports seen to be relevant to Ryzen-based laptops. These 3052 * NICs are usually used as OEM components thanks to some sort 3053 * of reference designs. 3054 * 3055 * Their popularity on other platforms is unclear. While there 3056 * is still a chance that the quirk may exist on other 3057 * platforms, be cautious and only apply the quirk to direct 3058 * children of Ryzen platforms's root hubs for the time being. 3059 * 3060 * In most cases the root hub is on the SoC or PCH, which needs 3061 * the quirk. Unfortunately, this can't distinguish root hubs on 3062 * PCIe add-in cards. Such roughness should be acceptable, as 3063 * PCIe USB controller add-in cards are less commonly used 3064 * nowadays. On the other hand, applying the quirk doesn't hurt 3065 * any functionalities either, as the device can still be used 3066 * as a wakeup source if desired. 3067 * 3068 * Theoretically, we could retrieve the root hub's PCI vendor ID 3069 * with some hierarchy magic, but that's too intrusive... 3070 */ 3071 if (platform_is_ryzen() && is_direct_child_of_root_hub(data->udev)) 3072 set_bit(BTUSB_WAKEUP_BROKEN, &data->flags); 3073 break; 3074 } 3075 3076 return 0; 3077 } 3078 3079 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3080 { 3081 int ret; 3082 3083 ret = btmtk_usb_shutdown(hdev); 3084 3085 /* Release MediaTek iso interface after shutdown */ 3086 btusb_mtk_release_iso_intf(hdev); 3087 3088 return ret; 3089 } 3090 3091 #ifdef CONFIG_PM 3092 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3093 static int marvell_config_oob_wake(struct hci_dev *hdev) 3094 { 3095 struct sk_buff *skb; 3096 struct btusb_data *data = hci_get_drvdata(hdev); 3097 struct device *dev = &data->udev->dev; 3098 u16 pin, gap, opcode; 3099 int ret; 3100 u8 cmd[5]; 3101 3102 /* Move on if no wakeup pin specified */ 3103 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3104 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3105 return 0; 3106 3107 /* Vendor specific command to configure a GPIO as wake-up pin */ 3108 opcode = hci_opcode_pack(0x3F, 0x59); 3109 cmd[0] = opcode & 0xFF; 3110 cmd[1] = opcode >> 8; 3111 cmd[2] = 2; /* length of parameters that follow */ 3112 cmd[3] = pin; 3113 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3114 3115 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3116 if (!skb) { 3117 bt_dev_err(hdev, "%s: No memory", __func__); 3118 return -ENOMEM; 3119 } 3120 3121 skb_put_data(skb, cmd, sizeof(cmd)); 3122 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3123 3124 ret = btusb_send_frame(hdev, skb); 3125 if (ret) { 3126 bt_dev_err(hdev, "%s: configuration failed", __func__); 3127 kfree_skb(skb); 3128 return ret; 3129 } 3130 3131 return 0; 3132 } 3133 #else 3134 static inline int marvell_config_oob_wake(struct hci_dev *hdev) 3135 { 3136 return 0; 3137 } 3138 #endif 3139 3140 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3141 const bdaddr_t *bdaddr) 3142 { 3143 struct sk_buff *skb; 3144 u8 buf[8]; 3145 long ret; 3146 3147 buf[0] = 0xfe; 3148 buf[1] = sizeof(bdaddr_t); 3149 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3150 3151 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3152 if (IS_ERR(skb)) { 3153 ret = PTR_ERR(skb); 3154 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3155 ret); 3156 return ret; 3157 } 3158 kfree_skb(skb); 3159 3160 return 0; 3161 } 3162 3163 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3164 const bdaddr_t *bdaddr) 3165 { 3166 struct sk_buff *skb; 3167 u8 buf[10]; 3168 long ret; 3169 3170 buf[0] = 0x01; 3171 buf[1] = 0x01; 3172 buf[2] = 0x00; 3173 buf[3] = sizeof(bdaddr_t); 3174 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3175 3176 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3177 if (IS_ERR(skb)) { 3178 ret = PTR_ERR(skb); 3179 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3180 return ret; 3181 } 3182 kfree_skb(skb); 3183 3184 return 0; 3185 } 3186 3187 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3188 const bdaddr_t *bdaddr) 3189 { 3190 bdaddr_t bdaddr_swapped; 3191 struct sk_buff *skb; 3192 long ret; 3193 3194 baswap(&bdaddr_swapped, bdaddr); 3195 3196 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(bdaddr_swapped), 3197 &bdaddr_swapped, HCI_EV_CMD_COMPLETE, 3198 HCI_INIT_TIMEOUT); 3199 if (IS_ERR(skb)) { 3200 ret = PTR_ERR(skb); 3201 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3202 return ret; 3203 } 3204 kfree_skb(skb); 3205 3206 return 0; 3207 } 3208 3209 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3210 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3211 #define QCA_MEMDUMP_VSE_CLASS 0x01 3212 #define QCA_MEMDUMP_MSG_TYPE 0x08 3213 #define QCA_MEMDUMP_PKT_SIZE 248 3214 #define QCA_LAST_SEQUENCE_NUM 0xffff 3215 3216 struct qca_dump_hdr { 3217 u8 vse_class; 3218 u8 msg_type; 3219 __le16 seqno; 3220 u8 reserved; 3221 union { 3222 u8 data[0]; 3223 struct { 3224 __le32 ram_dump_size; 3225 u8 data0[0]; 3226 } __packed; 3227 }; 3228 } __packed; 3229 3230 3231 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3232 { 3233 char buf[128]; 3234 struct btqca_data *btqca_data = hci_get_priv(hdev); 3235 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump; 3236 3237 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3238 qca_dump_ptr->controller_id); 3239 skb_put_data(skb, buf, strlen(buf)); 3240 3241 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3242 qca_dump_ptr->fw_version); 3243 skb_put_data(skb, buf, strlen(buf)); 3244 3245 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3246 btusb_driver.name); 3247 skb_put_data(skb, buf, strlen(buf)); 3248 3249 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3250 qca_dump_ptr->id_vendor, qca_dump_ptr->id_product); 3251 skb_put_data(skb, buf, strlen(buf)); 3252 3253 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3254 hdev->lmp_subver); 3255 skb_put_data(skb, buf, strlen(buf)); 3256 } 3257 3258 static void btusb_coredump_qca(struct hci_dev *hdev) 3259 { 3260 int err; 3261 static const u8 param[] = { 0x26 }; 3262 3263 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3264 if (err < 0) 3265 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3266 } 3267 3268 /* Return: 0 on success, negative errno on failure. */ 3269 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3270 { 3271 int ret = 0; 3272 unsigned int skip = 0; 3273 u8 pkt_type; 3274 u16 seqno; 3275 u32 dump_size; 3276 3277 struct qca_dump_hdr *dump_hdr; 3278 struct btusb_data *btdata = hci_get_drvdata(hdev); 3279 struct btqca_data *btqca_data = hci_get_priv(hdev); 3280 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump; 3281 struct usb_device *udev = btdata->udev; 3282 3283 pkt_type = hci_skb_pkt_type(skb); 3284 skip = sizeof(struct hci_event_hdr); 3285 if (pkt_type == HCI_ACLDATA_PKT) 3286 skip += sizeof(struct hci_acl_hdr); 3287 3288 skb_pull(skb, skip); 3289 dump_hdr = (struct qca_dump_hdr *)skb->data; 3290 3291 seqno = le16_to_cpu(dump_hdr->seqno); 3292 if (seqno == 0) { 3293 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3294 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3295 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3296 ret = -EILSEQ; 3297 bt_dev_err(hdev, "Invalid memdump size(%u)", 3298 dump_size); 3299 goto out; 3300 } 3301 3302 ret = hci_devcd_init(hdev, dump_size); 3303 if (ret < 0) { 3304 bt_dev_err(hdev, "memdump init error(%d)", ret); 3305 goto out; 3306 } 3307 3308 qca_dump_ptr->ram_dump_size = dump_size; 3309 qca_dump_ptr->ram_dump_seqno = 0; 3310 3311 skb_pull(skb, offsetof(struct qca_dump_hdr, data0)); 3312 3313 usb_disable_autosuspend(udev); 3314 bt_dev_info(hdev, "%s memdump size(%u)\n", 3315 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3316 dump_size); 3317 } else { 3318 skb_pull(skb, offsetof(struct qca_dump_hdr, data)); 3319 } 3320 3321 if (!qca_dump_ptr->ram_dump_size) { 3322 ret = -EINVAL; 3323 bt_dev_err(hdev, "memdump is not active"); 3324 goto out; 3325 } 3326 3327 if ((seqno > qca_dump_ptr->ram_dump_seqno + 1) && seqno != QCA_LAST_SEQUENCE_NUM) { 3328 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - qca_dump_ptr->ram_dump_seqno - 1); 3329 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3330 bt_dev_err(hdev, 3331 "expected memdump seqno(%u) is not received(%u)\n", 3332 qca_dump_ptr->ram_dump_seqno, seqno); 3333 qca_dump_ptr->ram_dump_seqno = seqno; 3334 kfree_skb(skb); 3335 return ret; 3336 } 3337 3338 hci_devcd_append(hdev, skb); 3339 qca_dump_ptr->ram_dump_seqno++; 3340 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3341 bt_dev_info(hdev, 3342 "memdump done: pkts(%u), total(%u)\n", 3343 qca_dump_ptr->ram_dump_seqno, qca_dump_ptr->ram_dump_size); 3344 3345 hci_devcd_complete(hdev); 3346 goto out; 3347 } 3348 return ret; 3349 3350 out: 3351 if (qca_dump_ptr->ram_dump_size) 3352 usb_enable_autosuspend(udev); 3353 qca_dump_ptr->ram_dump_size = 0; 3354 qca_dump_ptr->ram_dump_seqno = 0; 3355 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3356 3357 if (ret < 0) 3358 kfree_skb(skb); 3359 return ret; 3360 } 3361 3362 /* Return: true if the ACL packet is a dump packet, false otherwise. */ 3363 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3364 { 3365 struct hci_event_hdr *event_hdr; 3366 struct hci_acl_hdr *acl_hdr; 3367 struct qca_dump_hdr *dump_hdr; 3368 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3369 bool is_dump = false; 3370 3371 if (!clone) 3372 return false; 3373 3374 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr)); 3375 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)) 3376 goto out; 3377 3378 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3379 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR) 3380 goto out; 3381 3382 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3383 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3384 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3385 goto out; 3386 3387 is_dump = true; 3388 out: 3389 consume_skb(clone); 3390 return is_dump; 3391 } 3392 3393 /* Return: true if the event packet is a dump packet, false otherwise. */ 3394 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3395 { 3396 struct hci_event_hdr *event_hdr; 3397 struct qca_dump_hdr *dump_hdr; 3398 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3399 bool is_dump = false; 3400 3401 if (!clone) 3402 return false; 3403 3404 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3405 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR) 3406 goto out; 3407 3408 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3409 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3410 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3411 goto out; 3412 3413 is_dump = true; 3414 out: 3415 consume_skb(clone); 3416 return is_dump; 3417 } 3418 3419 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3420 { 3421 if (acl_pkt_is_dump_qca(hdev, skb)) 3422 return handle_dump_pkt_qca(hdev, skb); 3423 return hci_recv_frame(hdev, skb); 3424 } 3425 3426 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3427 { 3428 if (evt_pkt_is_dump_qca(hdev, skb)) 3429 return handle_dump_pkt_qca(hdev, skb); 3430 return hci_recv_frame(hdev, skb); 3431 } 3432 3433 3434 #define QCA_DFU_PACKET_LEN 4096 3435 3436 #define QCA_GET_TARGET_VERSION 0x09 3437 #define QCA_CHECK_STATUS 0x05 3438 #define QCA_DFU_DOWNLOAD 0x01 3439 3440 #define QCA_SYSCFG_UPDATED 0x40 3441 #define QCA_PATCH_UPDATED 0x80 3442 #define QCA_DFU_TIMEOUT 3000 3443 #define QCA_FLAG_MULTI_NVM 0x80 3444 #define QCA_BT_RESET_WAIT_MS 100 3445 3446 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3447 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3448 3449 struct qca_version { 3450 __le32 rom_version; 3451 __le32 patch_version; 3452 __le32 ram_version; 3453 __u8 chip_id; 3454 __u8 platform_id; 3455 __le16 flag; 3456 __u8 reserved[4]; 3457 } __packed; 3458 3459 struct qca_rampatch_version { 3460 __le16 rom_version_high; 3461 __le16 rom_version_low; 3462 __le16 patch_version; 3463 } __packed; 3464 3465 struct qca_device_info { 3466 u32 rom_version; 3467 u8 rampatch_hdr; /* length of header in rampatch */ 3468 u8 nvm_hdr; /* length of header in NVM */ 3469 u8 ver_offset; /* offset of version structure in rampatch */ 3470 }; 3471 3472 struct qca_custom_firmware { 3473 u32 rom_version; 3474 u16 board_id; 3475 const char *subdirectory; 3476 }; 3477 3478 static const struct qca_device_info qca_devices_table[] = { 3479 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3480 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3481 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3482 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3483 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3484 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3485 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3486 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3487 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3488 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3489 }; 3490 3491 static const struct qca_custom_firmware qca_custom_btfws[] = { 3492 { 0x00130201, 0x030A, "QCA2066" }, 3493 { 0x00130201, 0x030B, "QCA2066" }, 3494 { }, 3495 }; 3496 3497 static u16 qca_extract_board_id(const struct qca_version *ver) 3498 { 3499 u16 flag = le16_to_cpu(ver->flag); 3500 u16 board_id = 0; 3501 3502 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3503 /* The board_id should be split into two bytes 3504 * The 1st byte is chip ID, and the 2nd byte is platform ID 3505 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3506 * we have several platforms, and platform IDs are continuously added 3507 * Platform ID: 3508 * 0x00 is for Mobile 3509 * 0x01 is for X86 3510 * 0x02 is for Automotive 3511 * 0x03 is for Consumer electronic 3512 */ 3513 board_id = (ver->chip_id << 8) + ver->platform_id; 3514 } 3515 3516 /* Take 0xffff as invalid board ID */ 3517 if (board_id == 0xffff) 3518 board_id = 0; 3519 3520 return board_id; 3521 } 3522 3523 static const char *qca_get_fw_subdirectory(const struct qca_version *ver) 3524 { 3525 const struct qca_custom_firmware *ptr; 3526 u32 rom_ver; 3527 u16 board_id; 3528 3529 rom_ver = le32_to_cpu(ver->rom_version); 3530 board_id = qca_extract_board_id(ver); 3531 if (!board_id) 3532 return NULL; 3533 3534 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) { 3535 if (ptr->rom_version == rom_ver && 3536 ptr->board_id == board_id) 3537 return ptr->subdirectory; 3538 } 3539 3540 return NULL; 3541 } 3542 3543 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3544 void *data, u16 size) 3545 { 3546 int err; 3547 3548 /* Found some of USB hosts have IOT issues with ours so that we should 3549 * not wait until HCI layer is ready. 3550 */ 3551 err = usb_control_msg_recv(udev, 0, request, USB_TYPE_VENDOR | USB_DIR_IN, 3552 0, 0, data, size, USB_CTRL_GET_TIMEOUT, 3553 GFP_KERNEL); 3554 if (err) 3555 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3556 3557 return err; 3558 } 3559 3560 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3561 const struct firmware *firmware, 3562 size_t hdr_size) 3563 { 3564 struct btusb_data *btdata = hci_get_drvdata(hdev); 3565 struct usb_device *udev = btdata->udev; 3566 size_t count, size, sent = 0; 3567 int pipe, len, err; 3568 u8 *buf; 3569 3570 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3571 if (!buf) 3572 return -ENOMEM; 3573 3574 count = firmware->size; 3575 3576 size = min_t(size_t, count, hdr_size); 3577 memcpy(buf, firmware->data, size); 3578 3579 /* USB patches should go down to controller through USB path 3580 * because binary format fits to go down through USB channel. 3581 * USB control path is for patching headers and USB bulk is for 3582 * patch body. 3583 */ 3584 pipe = usb_sndctrlpipe(udev, 0); 3585 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3586 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3587 if (err < 0) { 3588 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3589 goto done; 3590 } 3591 3592 sent += size; 3593 count -= size; 3594 3595 /* ep2 need time to switch from function acl to function dfu, 3596 * so we add 20ms delay here. 3597 */ 3598 msleep(20); 3599 3600 while (count) { 3601 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3602 3603 memcpy(buf, firmware->data + sent, size); 3604 3605 pipe = usb_sndbulkpipe(udev, 0x02); 3606 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3607 QCA_DFU_TIMEOUT); 3608 if (err < 0) { 3609 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3610 sent, firmware->size, err); 3611 break; 3612 } 3613 3614 if (size != len) { 3615 bt_dev_err(hdev, "Failed to get bulk buffer"); 3616 err = -EILSEQ; 3617 break; 3618 } 3619 3620 sent += size; 3621 count -= size; 3622 } 3623 3624 done: 3625 kfree(buf); 3626 return err; 3627 } 3628 3629 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3630 struct qca_version *ver, 3631 const struct qca_device_info *info) 3632 { 3633 struct qca_rampatch_version *rver; 3634 const struct firmware *fw; 3635 const char *fw_subdir; 3636 u32 ver_rom, ver_patch, rver_rom; 3637 u16 rver_rom_low, rver_rom_high, rver_patch; 3638 char fwname[80]; 3639 int err; 3640 3641 ver_rom = le32_to_cpu(ver->rom_version); 3642 ver_patch = le32_to_cpu(ver->patch_version); 3643 3644 fw_subdir = qca_get_fw_subdirectory(ver); 3645 if (fw_subdir) 3646 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin", 3647 fw_subdir, ver_rom); 3648 else 3649 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", 3650 ver_rom); 3651 3652 err = request_firmware(&fw, fwname, &hdev->dev); 3653 if (err) { 3654 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3655 fwname, err); 3656 return err; 3657 } 3658 3659 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3660 3661 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3662 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3663 rver_patch = le16_to_cpu(rver->patch_version); 3664 3665 if (ver_rom & ~0xffffU) { 3666 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3667 rver_rom = rver_rom_high << 16 | rver_rom_low; 3668 } else { 3669 rver_rom = rver_rom_low; 3670 } 3671 3672 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3673 "firmware rome 0x%x build 0x%x", 3674 rver_rom, rver_patch, ver_rom, ver_patch); 3675 3676 /* Allow rampatch when the patch version equals the firmware version. 3677 * A firmware download may be aborted by a transient USB error (e.g. 3678 * disconnect) after the controller updates version info but before 3679 * completion. 3680 * Allowing equal versions enables re-flashing during recovery. 3681 */ 3682 if (rver_rom != ver_rom || rver_patch < ver_patch) { 3683 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3684 err = -EINVAL; 3685 goto done; 3686 } 3687 3688 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3689 3690 done: 3691 release_firmware(fw); 3692 3693 return err; 3694 } 3695 3696 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3697 const struct qca_version *ver) 3698 { 3699 u32 rom_version = le32_to_cpu(ver->rom_version); 3700 const char *variant, *fw_subdir; 3701 int len; 3702 u16 board_id; 3703 3704 fw_subdir = qca_get_fw_subdirectory(ver); 3705 board_id = qca_extract_board_id(ver); 3706 3707 switch (le32_to_cpu(ver->ram_version)) { 3708 case WCN6855_2_0_RAM_VERSION_GF: 3709 case WCN6855_2_1_RAM_VERSION_GF: 3710 variant = "_gf"; 3711 break; 3712 default: 3713 variant = NULL; 3714 break; 3715 } 3716 3717 if (fw_subdir) 3718 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x", 3719 fw_subdir, rom_version); 3720 else 3721 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x", 3722 rom_version); 3723 if (variant) 3724 len += snprintf(fwname + len, max_size - len, "%s", variant); 3725 if (board_id) 3726 len += snprintf(fwname + len, max_size - len, "_%04x", board_id); 3727 len += snprintf(fwname + len, max_size - len, ".bin"); 3728 } 3729 3730 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3731 struct qca_version *ver, 3732 const struct qca_device_info *info) 3733 { 3734 const struct firmware *fw; 3735 char fwname[80]; 3736 int err; 3737 3738 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3739 3740 err = request_firmware(&fw, fwname, &hdev->dev); 3741 if (err) { 3742 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3743 fwname, err); 3744 return err; 3745 } 3746 3747 bt_dev_info(hdev, "using NVM file: %s", fwname); 3748 3749 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3750 3751 release_firmware(fw); 3752 3753 return err; 3754 } 3755 3756 /* identify the ROM version and check whether patches are needed */ 3757 static bool btusb_qca_need_patch(struct usb_device *udev) 3758 { 3759 struct qca_version ver; 3760 3761 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3762 sizeof(ver))) 3763 return false; 3764 /* only low ROM versions need patches */ 3765 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3766 } 3767 3768 static int btusb_setup_qca(struct hci_dev *hdev) 3769 { 3770 struct btusb_data *btdata = hci_get_drvdata(hdev); 3771 struct usb_device *udev = btdata->udev; 3772 const struct qca_device_info *info = NULL; 3773 struct qca_version ver; 3774 u32 ver_rom; 3775 u8 status; 3776 int i, err; 3777 3778 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3779 sizeof(ver)); 3780 if (err) 3781 return err; 3782 3783 ver_rom = le32_to_cpu(ver.rom_version); 3784 3785 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3786 if (ver_rom == qca_devices_table[i].rom_version) 3787 info = &qca_devices_table[i]; 3788 } 3789 if (!info) { 3790 /* If the rom_version is not matched in the qca_devices_table 3791 * and the high ROM version is not zero, we assume this chip no 3792 * need to load the rampatch and nvm. 3793 */ 3794 if (ver_rom & ~0xffffU) 3795 return 0; 3796 3797 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3798 return -ENODEV; 3799 } 3800 3801 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3802 sizeof(status)); 3803 if (err) 3804 return err; 3805 3806 if (!(status & QCA_PATCH_UPDATED)) { 3807 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3808 if (err < 0) 3809 return err; 3810 } 3811 3812 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3813 sizeof(ver)); 3814 if (err) 3815 return err; 3816 3817 if (btdata->match_id->driver_info & BTUSB_QCA_WCN6855) { 3818 struct btqca_data *btqca_data = hci_get_priv(hdev); 3819 3820 btqca_data->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3821 btqca_data->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3822 } 3823 3824 if (!(status & QCA_SYSCFG_UPDATED)) { 3825 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3826 if (err < 0) 3827 return err; 3828 3829 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3830 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3831 * cause potential enable failure. 3832 */ 3833 if (info->rom_version >= 0x00130201) 3834 msleep(QCA_BT_RESET_WAIT_MS); 3835 } 3836 3837 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3838 * work with the likes of HSP/HFP mSBC. 3839 */ 3840 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 3841 3842 return 0; 3843 } 3844 3845 static inline int __set_diag_interface(struct hci_dev *hdev) 3846 { 3847 struct btusb_data *data = hci_get_drvdata(hdev); 3848 struct usb_interface *intf = data->diag; 3849 int ret; 3850 3851 if (!data->diag) 3852 return -ENODEV; 3853 3854 ret = usb_find_common_endpoints(intf->cur_altsetting, &data->diag_rx_ep, 3855 &data->diag_tx_ep, NULL, NULL); 3856 if (ret) { 3857 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3858 return -ENODEV; 3859 } 3860 3861 return 0; 3862 } 3863 3864 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3865 { 3866 struct btusb_data *data = hci_get_drvdata(hdev); 3867 struct sk_buff *skb; 3868 struct urb *urb; 3869 unsigned int pipe; 3870 3871 if (!data->diag_tx_ep) 3872 return ERR_PTR(-ENODEV); 3873 3874 urb = usb_alloc_urb(0, GFP_KERNEL); 3875 if (!urb) 3876 return ERR_PTR(-ENOMEM); 3877 3878 skb = bt_skb_alloc(2, GFP_KERNEL); 3879 if (!skb) { 3880 usb_free_urb(urb); 3881 return ERR_PTR(-ENOMEM); 3882 } 3883 3884 skb_put_u8(skb, 0xf0); 3885 skb_put_u8(skb, enable); 3886 3887 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 3888 3889 usb_fill_bulk_urb(urb, data->udev, pipe, 3890 skb->data, skb->len, btusb_tx_complete, skb); 3891 3892 skb->dev = (void *)hdev; 3893 3894 return urb; 3895 } 3896 3897 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 3898 { 3899 struct btusb_data *data = hci_get_drvdata(hdev); 3900 struct urb *urb; 3901 3902 if (!data->diag) 3903 return -ENODEV; 3904 3905 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3906 return -ENETDOWN; 3907 3908 urb = alloc_diag_urb(hdev, enable); 3909 if (IS_ERR(urb)) 3910 return PTR_ERR(urb); 3911 3912 return submit_or_queue_tx_urb(hdev, urb); 3913 } 3914 3915 #ifdef CONFIG_PM 3916 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 3917 { 3918 struct btusb_data *data = priv; 3919 3920 pm_wakeup_event(&data->udev->dev, 0); 3921 pm_system_wakeup(); 3922 3923 /* Disable only if not already disabled (keep it balanced) */ 3924 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3925 disable_irq_nosync(irq); 3926 disable_irq_wake(irq); 3927 } 3928 return IRQ_HANDLED; 3929 } 3930 3931 static const struct of_device_id btusb_match_table[] = { 3932 { .compatible = "usb1286,204e" }, 3933 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 3934 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 3935 { } 3936 }; 3937 MODULE_DEVICE_TABLE(of, btusb_match_table); 3938 3939 /* Use an oob wakeup pin? */ 3940 static int btusb_config_oob_wake(struct hci_dev *hdev) 3941 { 3942 struct btusb_data *data = hci_get_drvdata(hdev); 3943 struct device *dev = &data->udev->dev; 3944 int irq, ret; 3945 3946 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3947 3948 if (!of_match_device(btusb_match_table, dev)) 3949 return 0; 3950 3951 /* Move on if no IRQ specified */ 3952 irq = of_irq_get_byname(dev->of_node, "wakeup"); 3953 if (irq <= 0) { 3954 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 3955 return 0; 3956 } 3957 3958 irq_set_status_flags(irq, IRQ_NOAUTOEN); 3959 ret = request_irq(irq, btusb_oob_wake_handler, 0, "OOB Wake-on-BT", data); 3960 if (ret) { 3961 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 3962 return ret; 3963 } 3964 3965 ret = device_init_wakeup(dev, true); 3966 if (ret) { 3967 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 3968 goto err_free_irq; 3969 } 3970 3971 data->oob_wake_irq = irq; 3972 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 3973 3974 return 0; 3975 3976 err_free_irq: 3977 free_irq(irq, data); 3978 3979 return ret; 3980 } 3981 #else 3982 static inline int btusb_config_oob_wake(struct hci_dev *hdev) 3983 { 3984 return 0; 3985 } 3986 #endif 3987 3988 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 3989 { 3990 if (dmi_check_system(btusb_needs_reset_resume_table)) 3991 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3992 } 3993 3994 static bool btusb_wakeup(struct hci_dev *hdev) 3995 { 3996 struct btusb_data *data = hci_get_drvdata(hdev); 3997 3998 return device_may_wakeup(&data->udev->dev); 3999 } 4000 4001 static int btusb_shutdown_qca(struct hci_dev *hdev) 4002 { 4003 int err; 4004 4005 err = __hci_reset_sync(hdev); 4006 if (err) 4007 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4008 4009 return err; 4010 } 4011 4012 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4013 size_t count, loff_t *ppos) 4014 { 4015 struct btusb_data *data = file->private_data; 4016 char buf[3]; 4017 4018 buf[0] = data->poll_sync ? 'Y' : 'N'; 4019 buf[1] = '\n'; 4020 buf[2] = '\0'; 4021 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4022 } 4023 4024 static ssize_t force_poll_sync_write(struct file *file, 4025 const char __user *user_buf, 4026 size_t count, loff_t *ppos) 4027 { 4028 struct btusb_data *data = file->private_data; 4029 bool enable; 4030 int err; 4031 4032 err = kstrtobool_from_user(user_buf, count, &enable); 4033 if (err) 4034 return err; 4035 4036 /* Only allow changes while the adapter is down */ 4037 if (test_bit(HCI_UP, &data->hdev->flags)) 4038 return -EPERM; 4039 4040 if (data->poll_sync == enable) 4041 return -EALREADY; 4042 4043 data->poll_sync = enable; 4044 4045 return count; 4046 } 4047 4048 static const struct file_operations force_poll_sync_fops = { 4049 .owner = THIS_MODULE, 4050 .open = simple_open, 4051 .read = force_poll_sync_read, 4052 .write = force_poll_sync_write, 4053 .llseek = default_llseek, 4054 }; 4055 4056 #define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \ 4057 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000) 4058 #define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0 4059 struct btusb_hci_drv_rp_supported_altsettings { 4060 __u8 num; 4061 __u8 altsettings[]; 4062 } __packed; 4063 4064 #define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \ 4065 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001) 4066 #define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1 4067 struct btusb_hci_drv_cmd_switch_altsetting { 4068 __u8 altsetting; 4069 } __packed; 4070 4071 static const struct { 4072 u16 opcode; 4073 const char *desc; 4074 } btusb_hci_drv_supported_commands[] = { 4075 /* Common commands */ 4076 { HCI_DRV_OP_READ_INFO, "Read Info" }, 4077 4078 /* Driver specific commands */ 4079 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" }, 4080 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" }, 4081 }; 4082 static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data, 4083 u16 data_len) 4084 { 4085 struct hci_drv_rp_read_info *rp; 4086 size_t rp_size; 4087 int err, i; 4088 u16 opcode, num_supported_commands = 4089 ARRAY_SIZE(btusb_hci_drv_supported_commands); 4090 4091 rp_size = sizeof(*rp) + num_supported_commands * 2; 4092 4093 rp = kmalloc(rp_size, GFP_KERNEL); 4094 if (!rp) 4095 return -ENOMEM; 4096 4097 strscpy_pad(rp->driver_name, btusb_driver.name); 4098 4099 rp->num_supported_commands = cpu_to_le16(num_supported_commands); 4100 for (i = 0; i < num_supported_commands; i++) { 4101 opcode = btusb_hci_drv_supported_commands[i].opcode; 4102 bt_dev_info(hdev, 4103 "Supported HCI Drv command (0x%02x|0x%04x): %s", 4104 hci_opcode_ogf(opcode), 4105 hci_opcode_ocf(opcode), 4106 btusb_hci_drv_supported_commands[i].desc); 4107 rp->supported_commands[i] = cpu_to_le16(opcode); 4108 } 4109 4110 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO, 4111 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4112 4113 kfree(rp); 4114 return err; 4115 } 4116 4117 static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data, 4118 u16 data_len) 4119 { 4120 struct btusb_data *drvdata = hci_get_drvdata(hdev); 4121 struct btusb_hci_drv_rp_supported_altsettings *rp; 4122 size_t rp_size; 4123 int err; 4124 u8 i; 4125 4126 /* There are at most 7 alt (0 - 6) */ 4127 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL); 4128 if (!rp) 4129 return -ENOMEM; 4130 4131 rp->num = 0; 4132 if (!drvdata->isoc) 4133 goto done; 4134 4135 for (i = 0; i <= 6; i++) { 4136 if (btusb_find_altsetting(drvdata, i)) 4137 rp->altsettings[rp->num++] = i; 4138 } 4139 4140 done: 4141 rp_size = sizeof(*rp) + rp->num; 4142 4143 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, 4144 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4145 kfree(rp); 4146 return err; 4147 } 4148 4149 static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data, 4150 u16 data_len) 4151 { 4152 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data; 4153 u8 status; 4154 4155 if (cmd->altsetting > 6) { 4156 status = HCI_DRV_STATUS_INVALID_PARAMETERS; 4157 } else { 4158 if (btusb_switch_alt_setting(hdev, cmd->altsetting)) 4159 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR; 4160 else 4161 status = HCI_DRV_STATUS_SUCCESS; 4162 } 4163 4164 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, 4165 status); 4166 } 4167 4168 static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = { 4169 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE }, 4170 }; 4171 4172 static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = { 4173 { btusb_hci_drv_supported_altsettings, 4174 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE }, 4175 { btusb_hci_drv_switch_altsetting, 4176 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE }, 4177 }; 4178 4179 static struct hci_drv btusb_hci_drv = { 4180 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers), 4181 .common_handlers = btusb_hci_drv_common_handlers, 4182 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers), 4183 .specific_handlers = btusb_hci_drv_specific_handlers, 4184 }; 4185 4186 static int btusb_probe(struct usb_interface *intf, 4187 const struct usb_device_id *id) 4188 { 4189 struct gpio_desc *reset_gpio; 4190 struct btusb_data *data; 4191 struct hci_dev *hdev; 4192 unsigned ifnum_base; 4193 int err, priv_size = 0; 4194 4195 BT_DBG("intf %p id %p", intf, id); 4196 4197 if ((id->driver_info & BTUSB_IFNUM_2) && 4198 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4199 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4200 return -ENODEV; 4201 4202 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4203 4204 if (!id->driver_info) { 4205 const struct usb_device_id *match; 4206 4207 match = usb_match_id(intf, quirks_table); 4208 if (match) 4209 id = match; 4210 } 4211 4212 if (id->driver_info & BTUSB_IGNORE) 4213 return -ENODEV; 4214 4215 if (id->driver_info & BTUSB_ATH3012) { 4216 struct usb_device *udev = interface_to_usbdev(intf); 4217 4218 /* Old firmware would otherwise let ath3k driver load 4219 * patch and sysconfig files 4220 */ 4221 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4222 !btusb_qca_need_patch(udev)) 4223 return -ENODEV; 4224 } 4225 4226 data = kzalloc_obj(*data); 4227 if (!data) 4228 return -ENOMEM; 4229 4230 data->match_id = id; 4231 err = usb_find_common_endpoints(intf->cur_altsetting, &data->bulk_rx_ep, 4232 &data->bulk_tx_ep, &data->intr_ep, NULL); 4233 if (err) 4234 goto err_free_data; 4235 4236 if (id->driver_info & BTUSB_AMP) { 4237 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4238 data->cmdreq = 0x2b; 4239 } else { 4240 data->cmdreq_type = USB_TYPE_CLASS; 4241 data->cmdreq = 0x00; 4242 } 4243 4244 data->udev = interface_to_usbdev(intf); 4245 data->intf = intf; 4246 4247 INIT_WORK(&data->work, btusb_work); 4248 INIT_WORK(&data->waker, btusb_waker); 4249 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4250 4251 skb_queue_head_init(&data->acl_q); 4252 4253 init_usb_anchor(&data->deferred); 4254 init_usb_anchor(&data->tx_anchor); 4255 spin_lock_init(&data->txlock); 4256 4257 init_usb_anchor(&data->intr_anchor); 4258 init_usb_anchor(&data->bulk_anchor); 4259 init_usb_anchor(&data->isoc_anchor); 4260 init_usb_anchor(&data->diag_anchor); 4261 init_usb_anchor(&data->ctrl_anchor); 4262 spin_lock_init(&data->rxlock); 4263 4264 data->recv_event = hci_recv_frame; 4265 data->recv_bulk = btusb_recv_bulk; 4266 4267 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4268 /* Allocate extra space for Intel device */ 4269 priv_size += sizeof(struct btintel_data); 4270 4271 /* Override the rx handlers */ 4272 data->recv_event = btintel_recv_event; 4273 data->recv_bulk = btusb_recv_bulk_intel; 4274 } else if (id->driver_info & BTUSB_REALTEK) { 4275 /* Allocate extra space for Realtek device */ 4276 priv_size += sizeof(struct btrealtek_data); 4277 4278 data->recv_event = btusb_recv_event_realtek; 4279 } else if (id->driver_info & BTUSB_MEDIATEK) { 4280 /* Allocate extra space for Mediatek device */ 4281 priv_size += sizeof(struct btmtk_data); 4282 } else if (id->driver_info & BTUSB_QCA_WCN6855) { 4283 /* Allocate extra space for QCA WCN6855 device */ 4284 priv_size += sizeof(struct btqca_data); 4285 } 4286 4287 data->recv_acl = hci_recv_frame; 4288 4289 hdev = hci_alloc_dev_priv(priv_size); 4290 if (!hdev) { 4291 err = -ENOMEM; 4292 goto err_free_data; 4293 } 4294 4295 hdev->bus = HCI_USB; 4296 hci_set_drvdata(hdev, data); 4297 4298 data->hdev = hdev; 4299 4300 SET_HCIDEV_DEV(hdev, &intf->dev); 4301 4302 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4303 GPIOD_OUT_LOW); 4304 if (IS_ERR(reset_gpio)) { 4305 err = PTR_ERR(reset_gpio); 4306 goto err_free_hdev; 4307 } else if (reset_gpio) { 4308 data->reset_gpio = reset_gpio; 4309 } 4310 4311 hdev->open = btusb_open; 4312 hdev->close = btusb_close; 4313 hdev->flush = btusb_flush; 4314 hdev->send = btusb_send_frame; 4315 hdev->notify = btusb_notify; 4316 hdev->wakeup = btusb_wakeup; 4317 hdev->hci_drv = &btusb_hci_drv; 4318 4319 err = btusb_config_oob_wake(hdev); 4320 if (err) 4321 goto err_put_reset; 4322 4323 /* Marvell devices may need a specific chip configuration */ 4324 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4325 err = marvell_config_oob_wake(hdev); 4326 if (err) 4327 goto err_disable_wakeup; 4328 } 4329 4330 if (id->driver_info & BTUSB_CW6622) 4331 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4332 4333 if (id->driver_info & BTUSB_BCM2045) 4334 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4335 4336 if (id->driver_info & BTUSB_BCM92035) 4337 hdev->setup = btusb_setup_bcm92035; 4338 4339 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4340 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4341 hdev->manufacturer = 15; 4342 hdev->setup = btbcm_setup_patchram; 4343 hdev->set_diag = btusb_bcm_set_diag; 4344 hdev->set_bdaddr = btbcm_set_bdaddr; 4345 4346 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4347 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4348 } 4349 4350 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4351 (id->driver_info & BTUSB_BCM_APPLE)) { 4352 hdev->manufacturer = 15; 4353 hdev->setup = btbcm_setup_apple; 4354 hdev->set_diag = btusb_bcm_set_diag; 4355 4356 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4357 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4358 } 4359 4360 /* Combined Intel Device setup to support multiple setup routine */ 4361 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4362 err = btintel_configure_setup(hdev, btusb_driver.name); 4363 if (err) 4364 goto err_kill_tx_urbs; 4365 4366 /* Transport specific configuration */ 4367 hdev->send = btusb_send_frame_intel; 4368 hdev->reset = btusb_intel_reset; 4369 4370 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4371 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4372 4373 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4374 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4375 4376 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4377 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4378 } 4379 4380 if (id->driver_info & BTUSB_MARVELL) 4381 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4382 4383 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4384 (id->driver_info & BTUSB_MEDIATEK)) { 4385 hdev->setup = btusb_mtk_setup; 4386 hdev->shutdown = btusb_mtk_shutdown; 4387 hdev->manufacturer = 70; 4388 hdev->reset = btmtk_reset_sync; 4389 hdev->set_bdaddr = btmtk_set_bdaddr; 4390 hdev->send = btusb_send_frame_mtk; 4391 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 4392 hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP); 4393 data->recv_acl = btmtk_usb_recv_acl; 4394 data->recv_event = btmtk_recv_event; 4395 data->suspend = btmtk_usb_suspend; 4396 data->resume = btmtk_usb_resume; 4397 data->disconnect = btusb_mtk_disconnect; 4398 } 4399 4400 if (id->driver_info & BTUSB_SWAVE) { 4401 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE); 4402 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS); 4403 } 4404 4405 if (id->driver_info & BTUSB_INTEL_BOOT) { 4406 hdev->manufacturer = 2; 4407 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4408 } 4409 4410 if (id->driver_info & BTUSB_ATH3012) { 4411 data->setup_on_usb = btusb_setup_qca; 4412 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4413 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4414 hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER); 4415 } 4416 4417 if (id->driver_info & BTUSB_QCA_ROME) { 4418 data->setup_on_usb = btusb_setup_qca; 4419 hdev->shutdown = btusb_shutdown_qca; 4420 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4421 hdev->reset = btusb_qca_reset; 4422 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4423 btusb_check_needs_reset_resume(intf); 4424 } 4425 4426 if (id->driver_info & BTUSB_QCA_WCN6855) { 4427 struct btqca_data *btqca_data = hci_get_priv(hdev); 4428 4429 btqca_data->qca_dump.id_vendor = id->idVendor; 4430 btqca_data->qca_dump.id_product = id->idProduct; 4431 data->recv_event = btusb_recv_evt_qca; 4432 data->recv_acl = btusb_recv_acl_qca; 4433 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4434 data->setup_on_usb = btusb_setup_qca; 4435 hdev->classify_pkt_type = btusb_classify_qca_pkt_type; 4436 hdev->shutdown = btusb_shutdown_qca; 4437 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4438 hdev->reset = btusb_qca_reset; 4439 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4440 hci_set_msft_opcode(hdev, 0xFD70); 4441 } 4442 4443 if (id->driver_info & BTUSB_AMP) { 4444 /* AMP controllers do not support SCO packets */ 4445 data->isoc = NULL; 4446 } else { 4447 /* Interface orders are hardcoded in the specification */ 4448 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4449 data->isoc_ifnum = ifnum_base + 1; 4450 } 4451 4452 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4453 (id->driver_info & BTUSB_REALTEK)) { 4454 btrtl_set_driver_name(hdev, btusb_driver.name); 4455 hdev->setup = btusb_setup_realtek; 4456 hdev->shutdown = btrtl_shutdown_realtek; 4457 hdev->reset = btusb_rtl_reset; 4458 hdev->hw_error = btusb_rtl_hw_error; 4459 4460 /* Realtek devices need to set remote wakeup on auto-suspend */ 4461 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4462 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4463 } 4464 4465 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4466 /* Support is advertised, but not implemented */ 4467 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 4468 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER); 4469 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT); 4470 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN); 4471 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE); 4472 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN); 4473 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT); 4474 } 4475 4476 if (!reset) 4477 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4478 4479 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4480 if (!disable_scofix) 4481 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE); 4482 } 4483 4484 if (id->driver_info & BTUSB_BROKEN_ISOC) 4485 data->isoc = NULL; 4486 4487 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4488 hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED); 4489 4490 if (id->driver_info & BTUSB_INVALID_LE_STATES) 4491 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES); 4492 4493 if (id->driver_info & BTUSB_BROKEN_EXT_SCAN) 4494 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN); 4495 4496 if (id->driver_info & BTUSB_DIGIANSWER) { 4497 data->cmdreq_type = USB_TYPE_VENDOR; 4498 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4499 } 4500 4501 if (id->driver_info & BTUSB_CSR) { 4502 struct usb_device *udev = data->udev; 4503 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4504 4505 /* Old firmware would otherwise execute USB reset */ 4506 if (bcdDevice < 0x117) 4507 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4508 4509 /* This must be set first in case we disable it for fakes */ 4510 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4511 4512 /* Fake CSR devices with broken commands */ 4513 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4514 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4515 hdev->setup = btusb_setup_csr; 4516 } 4517 4518 if (id->driver_info & BTUSB_SNIFFER) { 4519 struct usb_device *udev = data->udev; 4520 4521 /* New sniffer firmware has crippled HCI interface */ 4522 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4523 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4524 } 4525 4526 if (id->driver_info & BTUSB_INTEL_BOOT) { 4527 /* A bug in the bootloader causes that interrupt interface is 4528 * only enabled after receiving SetInterface(0, AltSetting=0). 4529 */ 4530 err = usb_set_interface(data->udev, 0, 0); 4531 if (err < 0) { 4532 BT_ERR("failed to set interface 0, alt 0 %d", err); 4533 goto err_kill_tx_urbs; 4534 } 4535 } 4536 4537 if (data->isoc) { 4538 err = usb_driver_claim_interface(&btusb_driver, 4539 data->isoc, data); 4540 if (err < 0) 4541 goto err_kill_tx_urbs; 4542 } 4543 4544 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4545 if (!usb_driver_claim_interface(&btusb_driver, 4546 data->diag, data)) 4547 __set_diag_interface(hdev); 4548 else 4549 data->diag = NULL; 4550 } 4551 4552 if (enable_autosuspend) 4553 usb_enable_autosuspend(data->udev); 4554 4555 data->poll_sync = enable_poll_sync; 4556 4557 err = hci_register_dev(hdev); 4558 if (err < 0) 4559 goto err_release_siblings; 4560 4561 usb_set_intfdata(intf, data); 4562 4563 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4564 &force_poll_sync_fops); 4565 4566 return 0; 4567 4568 err_release_siblings: 4569 if (data->diag) { 4570 usb_set_intfdata(data->diag, NULL); 4571 usb_driver_release_interface(&btusb_driver, data->diag); 4572 } 4573 if (data->isoc) { 4574 usb_set_intfdata(data->isoc, NULL); 4575 usb_driver_release_interface(&btusb_driver, data->isoc); 4576 } 4577 err_kill_tx_urbs: 4578 usb_kill_anchored_urbs(&data->tx_anchor); 4579 err_disable_wakeup: 4580 if (data->oob_wake_irq) { 4581 device_init_wakeup(&data->udev->dev, false); 4582 free_irq(data->oob_wake_irq, data); 4583 } 4584 err_put_reset: 4585 if (data->reset_gpio) 4586 gpiod_put(data->reset_gpio); 4587 err_free_hdev: 4588 hci_free_dev(hdev); 4589 err_free_data: 4590 kfree(data); 4591 4592 return err; 4593 } 4594 4595 static void btusb_disconnect(struct usb_interface *intf) 4596 { 4597 struct btusb_data *data = usb_get_intfdata(intf); 4598 struct hci_dev *hdev; 4599 4600 BT_DBG("intf %p", intf); 4601 4602 if (!data) 4603 return; 4604 4605 hdev = data->hdev; 4606 usb_set_intfdata(data->intf, NULL); 4607 4608 if (data->isoc) 4609 usb_set_intfdata(data->isoc, NULL); 4610 4611 if (data->diag) 4612 usb_set_intfdata(data->diag, NULL); 4613 4614 if (data->disconnect) 4615 data->disconnect(hdev); 4616 4617 hci_unregister_dev(hdev); 4618 4619 if (data->oob_wake_irq) { 4620 device_init_wakeup(&data->udev->dev, false); 4621 free_irq(data->oob_wake_irq, data); 4622 } 4623 4624 if (data->reset_gpio) 4625 gpiod_put(data->reset_gpio); 4626 4627 if (test_and_clear_bit(BTUSB_RESET, &data->flags)) 4628 usb_autopm_put_interface_no_suspend(data->intf); 4629 4630 if (intf == data->intf) { 4631 if (data->isoc) 4632 usb_driver_release_interface(&btusb_driver, data->isoc); 4633 if (data->diag) 4634 usb_driver_release_interface(&btusb_driver, data->diag); 4635 } else if (intf == data->isoc) { 4636 if (data->diag) 4637 usb_driver_release_interface(&btusb_driver, data->diag); 4638 usb_driver_release_interface(&btusb_driver, data->intf); 4639 } else if (intf == data->diag) { 4640 if (data->isoc) 4641 usb_driver_release_interface(&btusb_driver, data->isoc); 4642 usb_driver_release_interface(&btusb_driver, data->intf); 4643 } 4644 4645 hci_free_dev(hdev); 4646 kfree(data); 4647 } 4648 4649 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4650 { 4651 struct btusb_data *data = usb_get_intfdata(intf); 4652 4653 BT_DBG("intf %p", intf); 4654 4655 /* 4656 * It is reported that remote wakeup events could sometimes cause some 4657 * adapters completely unresponsive. Resetting the xHCI root hub doesn't 4658 * help at all, and recovering from such a state needs a power cycle. 4659 * Since disabling remote wakeup simply causes the USB core to gate 4660 * runtime autosuspend as well due to needs_remote_wakeup == 1, let's do 4661 * this ourselves to make our life easier. The interface can be safely 4662 * autosuspended as long as remote wakeup is disabled, i.e., after 4663 * closing the HCI device. 4664 * 4665 * Don't auto-suspend if there are connections or discovery in progress. 4666 * 4667 * External suspend calls shall never fail. Specifically, a device with 4668 * broken remote wakeup may still take the advantage of remote wakeup in 4669 * order to wake up the system from sleep if userspace has enabled it as 4670 * a wakeup source. 4671 */ 4672 if (PMSG_IS_AUTO(message) && 4673 ((test_bit(BTUSB_WAKEUP_BROKEN, &data->flags) && data->intf->needs_remote_wakeup) || 4674 hci_conn_count(data->hdev) || hci_discovery_active(data->hdev))) 4675 return -EBUSY; 4676 4677 if (data->suspend_count++) 4678 return 0; 4679 4680 spin_lock_irq(&data->txlock); 4681 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4682 set_bit(BTUSB_SUSPENDING, &data->flags); 4683 spin_unlock_irq(&data->txlock); 4684 } else { 4685 spin_unlock_irq(&data->txlock); 4686 data->suspend_count--; 4687 return -EBUSY; 4688 } 4689 4690 cancel_work_sync(&data->work); 4691 4692 if (data->suspend) 4693 data->suspend(data->hdev); 4694 4695 btusb_stop_traffic(data); 4696 usb_kill_anchored_urbs(&data->tx_anchor); 4697 4698 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4699 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4700 enable_irq_wake(data->oob_wake_irq); 4701 enable_irq(data->oob_wake_irq); 4702 } 4703 4704 /* For global suspend, Realtek devices lose the loaded fw 4705 * in them. But for autosuspend, firmware should remain. 4706 * Actually, it depends on whether the usb host sends 4707 * set feature (enable wakeup) or not. 4708 */ 4709 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4710 if (PMSG_IS_AUTO(message) && 4711 device_can_wakeup(&data->udev->dev)) 4712 data->udev->do_remote_wakeup = 1; 4713 else if (!PMSG_IS_AUTO(message) && 4714 !device_may_wakeup(&data->udev->dev)) { 4715 data->udev->do_remote_wakeup = 0; 4716 data->udev->reset_resume = 1; 4717 } 4718 } 4719 4720 return 0; 4721 } 4722 4723 static void play_deferred(struct btusb_data *data) 4724 { 4725 struct urb *urb; 4726 int err; 4727 4728 while ((urb = usb_get_from_anchor(&data->deferred))) { 4729 usb_anchor_urb(urb, &data->tx_anchor); 4730 4731 err = usb_submit_urb(urb, GFP_ATOMIC); 4732 if (err < 0) { 4733 if (err != -EPERM && err != -ENODEV) 4734 BT_ERR("%s urb %p submission failed (%d)", 4735 data->hdev->name, urb, -err); 4736 kfree(urb->setup_packet); 4737 usb_unanchor_urb(urb); 4738 usb_free_urb(urb); 4739 break; 4740 } 4741 4742 data->tx_in_flight++; 4743 usb_free_urb(urb); 4744 } 4745 4746 /* Cleanup the rest deferred urbs. */ 4747 while ((urb = usb_get_from_anchor(&data->deferred))) { 4748 kfree(urb->setup_packet); 4749 usb_free_urb(urb); 4750 } 4751 } 4752 4753 static int btusb_resume(struct usb_interface *intf) 4754 { 4755 struct btusb_data *data = usb_get_intfdata(intf); 4756 struct hci_dev *hdev = data->hdev; 4757 int err = 0; 4758 4759 BT_DBG("intf %p", intf); 4760 4761 if (--data->suspend_count) 4762 return 0; 4763 4764 /* Disable only if not already disabled (keep it balanced) */ 4765 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4766 disable_irq(data->oob_wake_irq); 4767 disable_irq_wake(data->oob_wake_irq); 4768 } 4769 4770 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4771 goto done; 4772 4773 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4774 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4775 if (err < 0) { 4776 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4777 goto failed; 4778 } 4779 } 4780 4781 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4782 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4783 if (err < 0) { 4784 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4785 goto failed; 4786 } 4787 4788 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4789 } 4790 4791 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4792 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4793 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4794 else 4795 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4796 } 4797 4798 if (data->resume) 4799 data->resume(hdev); 4800 4801 spin_lock_irq(&data->txlock); 4802 play_deferred(data); 4803 clear_bit(BTUSB_SUSPENDING, &data->flags); 4804 spin_unlock_irq(&data->txlock); 4805 schedule_work(&data->work); 4806 4807 return 0; 4808 4809 failed: 4810 usb_scuttle_anchored_urbs(&data->deferred); 4811 done: 4812 spin_lock_irq(&data->txlock); 4813 clear_bit(BTUSB_SUSPENDING, &data->flags); 4814 spin_unlock_irq(&data->txlock); 4815 4816 return err; 4817 } 4818 4819 #ifdef CONFIG_DEV_COREDUMP 4820 static void btusb_coredump(struct device *dev) 4821 { 4822 struct btusb_data *data = dev_get_drvdata(dev); 4823 struct hci_dev *hdev = data->hdev; 4824 4825 if (hdev->dump.coredump) 4826 hdev->dump.coredump(hdev); 4827 } 4828 #endif 4829 4830 static struct usb_driver btusb_driver = { 4831 .name = "btusb", 4832 .probe = btusb_probe, 4833 .disconnect = btusb_disconnect, 4834 .suspend = pm_ptr(btusb_suspend), 4835 .resume = pm_ptr(btusb_resume), 4836 .id_table = btusb_table, 4837 .supports_autosuspend = 1, 4838 .disable_hub_initiated_lpm = 1, 4839 4840 #ifdef CONFIG_DEV_COREDUMP 4841 .driver = { 4842 .coredump = btusb_coredump, 4843 }, 4844 #endif 4845 }; 4846 4847 module_usb_driver(btusb_driver); 4848 4849 module_param(disable_scofix, bool, 0644); 4850 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4851 4852 module_param(force_scofix, bool, 0644); 4853 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4854 4855 module_param(enable_autosuspend, bool, 0644); 4856 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4857 4858 module_param(reset, bool, 0644); 4859 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4860 4861 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4862 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4863 MODULE_VERSION(VERSION); 4864 MODULE_LICENSE("GPL"); 4865