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btusb.c
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linux-6.19.14/drivers/bluetooth/btusb.c
1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * 4 * Generic Bluetooth USB driver 5 * 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 7 */ 8 9#include <linux/dmi.h> 10#include <linux/module.h> 11#include <linux/usb.h> 12#include <linux/usb/quirks.h> 13#include <linux/firmware.h> 14#include <linux/iopoll.h> 15#include <linux/of_device.h> 16#include <linux/of_irq.h> 17#include <linux/suspend.h> 18#include <linux/gpio/consumer.h> 19#include <linux/debugfs.h> 20#include <linux/unaligned.h> 21 22#include <net/bluetooth/bluetooth.h> 23#include <net/bluetooth/hci_core.h> 24#include <net/bluetooth/hci_drv.h> 25 26#include "btintel.h" 27#include "btbcm.h" 28#include "btrtl.h" 29#include "btmtk.h" 30 31#define VERSION "0.8" 32 33static bool disable_scofix; 34static bool force_scofix; 35static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 36static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 37static bool reset = true; 38 39static struct usb_driver btusb_driver; 40 41#define BTUSB_IGNORE BIT(0) 42#define BTUSB_DIGIANSWER BIT(1) 43#define BTUSB_CSR BIT(2) 44#define BTUSB_SNIFFER BIT(3) 45#define BTUSB_BCM92035 BIT(4) 46#define BTUSB_BROKEN_ISOC BIT(5) 47#define BTUSB_WRONG_SCO_MTU BIT(6) 48#define BTUSB_ATH3012 BIT(7) 49#define BTUSB_INTEL_COMBINED BIT(8) 50#define BTUSB_INTEL_BOOT BIT(9) 51#define BTUSB_BCM_PATCHRAM BIT(10) 52#define BTUSB_MARVELL BIT(11) 53#define BTUSB_SWAVE BIT(12) 54#define BTUSB_AMP BIT(13) 55#define BTUSB_QCA_ROME BIT(14) 56#define BTUSB_BCM_APPLE BIT(15) 57#define BTUSB_REALTEK BIT(16) 58#define BTUSB_BCM2045 BIT(17) 59#define BTUSB_IFNUM_2 BIT(18) 60#define BTUSB_CW6622 BIT(19) 61#define BTUSB_MEDIATEK BIT(20) 62#define BTUSB_WIDEBAND_SPEECH BIT(21) 63#define BTUSB_INVALID_LE_STATES BIT(22) 64#define BTUSB_QCA_WCN6855 BIT(23) 65#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 66#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 67#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 68#define BTUSB_ACTIONS_SEMI BIT(27) 69#define BTUSB_BARROT BIT(28) 70 71static const struct usb_device_id btusb_table[] = { 72 /* Generic Bluetooth USB device */ 73 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 74 75 /* Generic Bluetooth AMP device */ 76 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 77 78 /* Generic Bluetooth USB interface */ 79 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 80 81 /* Apple-specific (Broadcom) devices */ 82 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 83 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 84 85 /* MediaTek MT76x0E */ 86 { USB_DEVICE(0x0e8d, 0x763f) }, 87 88 /* Broadcom SoftSailing reporting vendor specific */ 89 { USB_DEVICE(0x0a5c, 0x21e1) }, 90 91 /* Apple MacBookPro 7,1 */ 92 { USB_DEVICE(0x05ac, 0x8213) }, 93 94 /* Apple iMac11,1 */ 95 { USB_DEVICE(0x05ac, 0x8215) }, 96 97 /* Apple MacBookPro6,2 */ 98 { USB_DEVICE(0x05ac, 0x8218) }, 99 100 /* Apple MacBookAir3,1, MacBookAir3,2 */ 101 { USB_DEVICE(0x05ac, 0x821b) }, 102 103 /* Apple MacBookAir4,1 */ 104 { USB_DEVICE(0x05ac, 0x821f) }, 105 106 /* Apple MacBookPro8,2 */ 107 { USB_DEVICE(0x05ac, 0x821a) }, 108 109 /* Apple MacMini5,1 */ 110 { USB_DEVICE(0x05ac, 0x8281) }, 111 112 /* AVM BlueFRITZ! USB v2.0 */ 113 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 114 115 /* Bluetooth Ultraport Module from IBM */ 116 { USB_DEVICE(0x04bf, 0x030a) }, 117 118 /* ALPS Modules with non-standard id */ 119 { USB_DEVICE(0x044e, 0x3001) }, 120 { USB_DEVICE(0x044e, 0x3002) }, 121 122 /* Ericsson with non-standard id */ 123 { USB_DEVICE(0x0bdb, 0x1002) }, 124 125 /* Canyon CN-BTU1 with HID interfaces */ 126 { USB_DEVICE(0x0c10, 0x0000) }, 127 128 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 129 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 130 131 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 132 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 133 .driver_info = BTUSB_BCM_PATCHRAM }, 134 135 /* Broadcom BCM920703 (HTC Vive) */ 136 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 137 .driver_info = BTUSB_BCM_PATCHRAM }, 138 139 /* Foxconn - Hon Hai */ 140 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 141 .driver_info = BTUSB_BCM_PATCHRAM }, 142 143 /* Lite-On Technology - Broadcom based */ 144 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 145 .driver_info = BTUSB_BCM_PATCHRAM }, 146 147 /* Broadcom devices with vendor specific id */ 148 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 149 .driver_info = BTUSB_BCM_PATCHRAM }, 150 151 /* ASUSTek Computer - Broadcom based */ 152 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 153 .driver_info = BTUSB_BCM_PATCHRAM }, 154 155 /* Belkin F8065bf - Broadcom based */ 156 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 157 .driver_info = BTUSB_BCM_PATCHRAM }, 158 159 /* IMC Networks - Broadcom based */ 160 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 161 .driver_info = BTUSB_BCM_PATCHRAM }, 162 163 /* Dell Computer - Broadcom based */ 164 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 165 .driver_info = BTUSB_BCM_PATCHRAM }, 166 167 /* Toshiba Corp - Broadcom based */ 168 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 169 .driver_info = BTUSB_BCM_PATCHRAM }, 170 171 /* Intel Bluetooth USB Bootloader (RAM module) */ 172 { USB_DEVICE(0x8087, 0x0a5a), 173 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 174 175 { } /* Terminating entry */ 176}; 177 178MODULE_DEVICE_TABLE(usb, btusb_table); 179 180static const struct usb_device_id quirks_table[] = { 181 /* CSR BlueCore devices */ 182 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 183 184 /* Broadcom BCM2033 without firmware */ 185 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 186 187 /* Broadcom BCM2045 devices */ 188 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 189 190 /* Atheros 3011 with sflash firmware */ 191 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 196 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 197 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 198 199 /* Atheros AR9285 Malbec with sflash firmware */ 200 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 201 202 /* Atheros 3012 with sflash firmware */ 203 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 253 254 /* Atheros AR5BBU12 with sflash firmware */ 255 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 256 257 /* Atheros AR5BBU12 with sflash firmware */ 258 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 259 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 260 261 /* QCA ROME chipset */ 262 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 263 BTUSB_WIDEBAND_SPEECH }, 264 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 265 BTUSB_WIDEBAND_SPEECH }, 266 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 267 BTUSB_WIDEBAND_SPEECH }, 268 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 269 BTUSB_WIDEBAND_SPEECH }, 270 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 271 BTUSB_WIDEBAND_SPEECH }, 272 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 273 BTUSB_WIDEBAND_SPEECH }, 274 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 275 BTUSB_WIDEBAND_SPEECH }, 276 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 299 BTUSB_WIDEBAND_SPEECH }, 300 301 /* QCA WCN6855 chipset */ 302 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 303 BTUSB_WIDEBAND_SPEECH }, 304 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 305 BTUSB_WIDEBAND_SPEECH }, 306 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 307 BTUSB_WIDEBAND_SPEECH }, 308 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 309 BTUSB_WIDEBAND_SPEECH }, 310 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 311 BTUSB_WIDEBAND_SPEECH }, 312 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 313 BTUSB_WIDEBAND_SPEECH }, 314 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 315 BTUSB_WIDEBAND_SPEECH }, 316 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 317 BTUSB_WIDEBAND_SPEECH }, 318 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 319 BTUSB_WIDEBAND_SPEECH }, 320 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 321 BTUSB_WIDEBAND_SPEECH }, 322 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 323 BTUSB_WIDEBAND_SPEECH }, 324 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH }, 326 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 327 BTUSB_WIDEBAND_SPEECH }, 328 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 329 BTUSB_WIDEBAND_SPEECH }, 330 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH }, 332 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 333 BTUSB_WIDEBAND_SPEECH }, 334 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 335 BTUSB_WIDEBAND_SPEECH }, 336 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH }, 338 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 339 BTUSB_WIDEBAND_SPEECH }, 340 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 341 BTUSB_WIDEBAND_SPEECH }, 342 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH }, 344 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 345 BTUSB_WIDEBAND_SPEECH }, 346 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 347 BTUSB_WIDEBAND_SPEECH }, 348 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH }, 350 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 351 BTUSB_WIDEBAND_SPEECH }, 352 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 353 BTUSB_WIDEBAND_SPEECH }, 354 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH }, 356 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 357 BTUSB_WIDEBAND_SPEECH }, 358 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 359 BTUSB_WIDEBAND_SPEECH }, 360 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH }, 362 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 363 BTUSB_WIDEBAND_SPEECH }, 364 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 365 BTUSB_WIDEBAND_SPEECH }, 366 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH }, 368 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 369 BTUSB_WIDEBAND_SPEECH }, 370 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 371 BTUSB_WIDEBAND_SPEECH }, 372 { USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH }, 374 375 /* QCA WCN785x chipset */ 376 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 377 BTUSB_WIDEBAND_SPEECH }, 378 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 | 379 BTUSB_WIDEBAND_SPEECH }, 380 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 | 381 BTUSB_WIDEBAND_SPEECH }, 382 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 | 383 BTUSB_WIDEBAND_SPEECH }, 384 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH }, 386 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 | 387 BTUSB_WIDEBAND_SPEECH }, 388 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 | 389 BTUSB_WIDEBAND_SPEECH }, 390 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH }, 392 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 | 393 BTUSB_WIDEBAND_SPEECH }, 394 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 | 395 BTUSB_WIDEBAND_SPEECH }, 396 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH }, 398 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 | 399 BTUSB_WIDEBAND_SPEECH }, 400 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 | 401 BTUSB_WIDEBAND_SPEECH }, 402 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH }, 404 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 | 405 BTUSB_WIDEBAND_SPEECH }, 406 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 | 407 BTUSB_WIDEBAND_SPEECH }, 408 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 | 409 BTUSB_WIDEBAND_SPEECH }, 410 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 | 411 BTUSB_WIDEBAND_SPEECH }, 412 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 | 413 BTUSB_WIDEBAND_SPEECH }, 414 415 /* Broadcom BCM2035 */ 416 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 417 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 418 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 420 /* Broadcom BCM2045 */ 421 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 424 /* IBM/Lenovo ThinkPad with Broadcom chip */ 425 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 426 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 427 428 /* HP laptop with Broadcom chip */ 429 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 430 431 /* Dell laptop with Broadcom chip */ 432 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 434 /* Dell Wireless 370 and 410 devices */ 435 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 438 /* Belkin F8T012 and F8T013 devices */ 439 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 441 442 /* Asus WL-BTD202 device */ 443 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 444 445 /* Kensington Bluetooth USB adapter */ 446 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 447 448 /* RTX Telecom based adapters with buggy SCO support */ 449 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 450 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 451 452 /* CONWISE Technology based adapters with buggy SCO support */ 453 { USB_DEVICE(0x0e5e, 0x6622), 454 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 455 456 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 457 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 458 459 /* Digianswer devices */ 460 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 461 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 462 463 /* CSR BlueCore Bluetooth Sniffer */ 464 { USB_DEVICE(0x0a12, 0x0002), 465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 466 467 /* Frontline ComProbe Bluetooth Sniffer */ 468 { USB_DEVICE(0x16d3, 0x0002), 469 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 470 471 /* Marvell Bluetooth devices */ 472 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 473 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 474 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 475 476 /* Intel Bluetooth devices */ 477 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 480 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 481 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 482 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 483 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 484 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 485 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 486 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED }, 487 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 488 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 489 BTUSB_INTEL_NO_WBS_SUPPORT | 490 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 492 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 493 BTUSB_INTEL_NO_WBS_SUPPORT | 494 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 495 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 496 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 497 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 498 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 499 500 /* Other Intel Bluetooth devices */ 501 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 502 .driver_info = BTUSB_IGNORE }, 503 504 /* Realtek 8821CE Bluetooth devices */ 505 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 506 BTUSB_WIDEBAND_SPEECH }, 507 { USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK | 508 BTUSB_WIDEBAND_SPEECH }, 509 510 /* Realtek 8822CE Bluetooth devices */ 511 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 512 BTUSB_WIDEBAND_SPEECH }, 513 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 514 BTUSB_WIDEBAND_SPEECH }, 515 516 /* Realtek 8822CU Bluetooth devices */ 517 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 518 BTUSB_WIDEBAND_SPEECH }, 519 520 /* Realtek 8851BE Bluetooth devices */ 521 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK }, 522 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, 523 { USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK }, 524 { USB_DEVICE(0x0489, 0xe112), .driver_info = BTUSB_REALTEK | 525 BTUSB_WIDEBAND_SPEECH }, 526 527 /* Realtek 8851BU Bluetooth devices */ 528 { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK | 529 BTUSB_WIDEBAND_SPEECH }, 530 { USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK | 531 BTUSB_WIDEBAND_SPEECH }, 532 { USB_DEVICE(0x7392, 0xe611), .driver_info = BTUSB_REALTEK | 533 BTUSB_WIDEBAND_SPEECH }, 534 535 /* Realtek 8852AE Bluetooth devices */ 536 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 537 BTUSB_WIDEBAND_SPEECH }, 538 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 539 BTUSB_WIDEBAND_SPEECH }, 540 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 541 BTUSB_WIDEBAND_SPEECH }, 542 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 543 BTUSB_WIDEBAND_SPEECH }, 544 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 545 BTUSB_WIDEBAND_SPEECH }, 546 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 547 BTUSB_WIDEBAND_SPEECH }, 548 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 549 BTUSB_WIDEBAND_SPEECH }, 550 551 /* Realtek 8852CE Bluetooth devices */ 552 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 553 BTUSB_WIDEBAND_SPEECH }, 554 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 555 BTUSB_WIDEBAND_SPEECH }, 556 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 557 BTUSB_WIDEBAND_SPEECH }, 558 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 559 BTUSB_WIDEBAND_SPEECH }, 560 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 561 BTUSB_WIDEBAND_SPEECH }, 562 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 563 BTUSB_WIDEBAND_SPEECH }, 564 { USB_DEVICE(0x13d3, 0x3612), .driver_info = BTUSB_REALTEK | 565 BTUSB_WIDEBAND_SPEECH }, 566 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 567 BTUSB_WIDEBAND_SPEECH }, 568 569 /* Realtek 8852BE Bluetooth devices */ 570 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 571 BTUSB_WIDEBAND_SPEECH }, 572 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 573 BTUSB_WIDEBAND_SPEECH }, 574 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 575 BTUSB_WIDEBAND_SPEECH }, 576 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 577 BTUSB_WIDEBAND_SPEECH }, 578 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 579 BTUSB_WIDEBAND_SPEECH }, 580 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 581 BTUSB_WIDEBAND_SPEECH }, 582 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 583 BTUSB_WIDEBAND_SPEECH }, 584 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 585 BTUSB_WIDEBAND_SPEECH }, 586 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK | 587 BTUSB_WIDEBAND_SPEECH }, 588 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 589 BTUSB_WIDEBAND_SPEECH }, 590 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 591 BTUSB_WIDEBAND_SPEECH }, 592 593 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 594 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 595 BTUSB_WIDEBAND_SPEECH }, 596 { USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK | 597 BTUSB_WIDEBAND_SPEECH }, 598 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK | 599 BTUSB_WIDEBAND_SPEECH }, 600 { USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK | 601 BTUSB_WIDEBAND_SPEECH }, 602 603 /* Realtek 8922AE Bluetooth devices */ 604 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK | 605 BTUSB_WIDEBAND_SPEECH }, 606 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK | 607 BTUSB_WIDEBAND_SPEECH }, 608 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK | 609 BTUSB_WIDEBAND_SPEECH }, 610 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK | 611 BTUSB_WIDEBAND_SPEECH }, 612 613 /* Realtek Bluetooth devices */ 614 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 615 .driver_info = BTUSB_REALTEK }, 616 617 /* MediaTek Bluetooth devices */ 618 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 619 .driver_info = BTUSB_MEDIATEK | 620 BTUSB_WIDEBAND_SPEECH }, 621 622 /* Additional MediaTek MT7615E Bluetooth devices */ 623 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 624 625 /* Additional MediaTek MT7663 Bluetooth devices */ 626 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 627 BTUSB_WIDEBAND_SPEECH }, 628 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 629 BTUSB_WIDEBAND_SPEECH }, 630 631 /* Additional MediaTek MT7668 Bluetooth devices */ 632 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 633 BTUSB_WIDEBAND_SPEECH }, 634 635 /* Additional MediaTek MT7920 Bluetooth devices */ 636 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK | 637 BTUSB_WIDEBAND_SPEECH }, 638 { USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK | 639 BTUSB_WIDEBAND_SPEECH }, 640 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK | 641 BTUSB_WIDEBAND_SPEECH }, 642 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK | 643 BTUSB_WIDEBAND_SPEECH }, 644 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK | 645 BTUSB_WIDEBAND_SPEECH }, 646 { USB_DEVICE(0x0489, 0xe158), .driver_info = BTUSB_MEDIATEK | 647 BTUSB_WIDEBAND_SPEECH }, 648 649 /* Additional MediaTek MT7921 Bluetooth devices */ 650 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 651 BTUSB_WIDEBAND_SPEECH }, 652 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 653 BTUSB_WIDEBAND_SPEECH }, 654 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 655 BTUSB_WIDEBAND_SPEECH }, 656 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 657 BTUSB_WIDEBAND_SPEECH }, 658 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 659 BTUSB_WIDEBAND_SPEECH }, 660 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 661 BTUSB_WIDEBAND_SPEECH }, 662 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 663 BTUSB_WIDEBAND_SPEECH }, 664 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 665 BTUSB_WIDEBAND_SPEECH }, 666 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 667 BTUSB_WIDEBAND_SPEECH }, 668 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK | 669 BTUSB_WIDEBAND_SPEECH }, 670 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 671 BTUSB_WIDEBAND_SPEECH }, 672 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 673 BTUSB_WIDEBAND_SPEECH }, 674 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 675 BTUSB_WIDEBAND_SPEECH }, 676 677 /* MediaTek MT7922 Bluetooth devices */ 678 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 679 BTUSB_WIDEBAND_SPEECH }, 680 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK | 681 BTUSB_WIDEBAND_SPEECH }, 682 683 /* MediaTek MT7922A Bluetooth devices */ 684 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 685 BTUSB_WIDEBAND_SPEECH }, 686 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 687 BTUSB_WIDEBAND_SPEECH }, 688 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 689 BTUSB_WIDEBAND_SPEECH }, 690 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 691 BTUSB_WIDEBAND_SPEECH }, 692 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 693 BTUSB_WIDEBAND_SPEECH }, 694 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 695 BTUSB_WIDEBAND_SPEECH }, 696 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 697 BTUSB_WIDEBAND_SPEECH }, 698 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 699 BTUSB_WIDEBAND_SPEECH }, 700 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 701 BTUSB_WIDEBAND_SPEECH }, 702 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK | 703 BTUSB_WIDEBAND_SPEECH }, 704 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK | 705 BTUSB_WIDEBAND_SPEECH }, 706 { USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK | 707 BTUSB_WIDEBAND_SPEECH }, 708 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 709 BTUSB_WIDEBAND_SPEECH }, 710 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 711 BTUSB_WIDEBAND_SPEECH }, 712 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 713 BTUSB_WIDEBAND_SPEECH }, 714 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK | 715 BTUSB_WIDEBAND_SPEECH }, 716 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 717 BTUSB_WIDEBAND_SPEECH }, 718 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 719 BTUSB_WIDEBAND_SPEECH }, 720 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 721 BTUSB_WIDEBAND_SPEECH }, 722 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 723 BTUSB_WIDEBAND_SPEECH }, 724 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK | 725 BTUSB_WIDEBAND_SPEECH }, 726 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 727 BTUSB_WIDEBAND_SPEECH }, 728 729 /* Additional MediaTek MT7925 Bluetooth devices */ 730 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 731 BTUSB_WIDEBAND_SPEECH }, 732 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 733 BTUSB_WIDEBAND_SPEECH }, 734 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK | 735 BTUSB_WIDEBAND_SPEECH }, 736 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK | 737 BTUSB_WIDEBAND_SPEECH }, 738 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK | 739 BTUSB_WIDEBAND_SPEECH }, 740 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK | 741 BTUSB_WIDEBAND_SPEECH }, 742 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK | 743 BTUSB_WIDEBAND_SPEECH }, 744 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK | 745 BTUSB_WIDEBAND_SPEECH }, 746 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK | 747 BTUSB_WIDEBAND_SPEECH }, 748 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK | 749 BTUSB_WIDEBAND_SPEECH }, 750 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 751 BTUSB_WIDEBAND_SPEECH }, 752 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 753 BTUSB_WIDEBAND_SPEECH }, 754 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK | 755 BTUSB_WIDEBAND_SPEECH }, 756 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK | 757 BTUSB_WIDEBAND_SPEECH }, 758 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK | 759 BTUSB_WIDEBAND_SPEECH }, 760 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK | 761 BTUSB_WIDEBAND_SPEECH }, 762 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK | 763 BTUSB_WIDEBAND_SPEECH }, 764 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK | 765 BTUSB_WIDEBAND_SPEECH }, 766 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK | 767 BTUSB_WIDEBAND_SPEECH }, 768 769 /* Additional Realtek 8723AE Bluetooth devices */ 770 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 771 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 772 773 /* Additional Realtek 8723BE Bluetooth devices */ 774 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 775 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 776 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 777 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 778 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 779 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 780 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 781 782 /* Additional Realtek 8723BU Bluetooth devices */ 783 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 784 { USB_DEVICE(0x2c0a, 0x8761), .driver_info = BTUSB_REALTEK }, 785 786 /* Additional Realtek 8723DE Bluetooth devices */ 787 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 788 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 789 790 /* Additional Realtek 8761BUV Bluetooth devices */ 791 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 792 BTUSB_WIDEBAND_SPEECH }, 793 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 794 BTUSB_WIDEBAND_SPEECH }, 795 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 796 BTUSB_WIDEBAND_SPEECH }, 797 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 798 BTUSB_WIDEBAND_SPEECH }, 799 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 800 BTUSB_WIDEBAND_SPEECH }, 801 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 802 BTUSB_WIDEBAND_SPEECH }, 803 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 804 BTUSB_WIDEBAND_SPEECH }, 805 { USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK | 806 BTUSB_WIDEBAND_SPEECH }, 807 808 /* Additional Realtek 8821AE Bluetooth devices */ 809 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 810 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 811 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 812 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 813 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 814 815 /* Additional Realtek 8822BE Bluetooth devices */ 816 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 817 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 818 819 /* Additional Realtek 8822CE Bluetooth devices */ 820 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 821 BTUSB_WIDEBAND_SPEECH }, 822 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 823 BTUSB_WIDEBAND_SPEECH }, 824 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 825 BTUSB_WIDEBAND_SPEECH }, 826 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 827 BTUSB_WIDEBAND_SPEECH }, 828 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 829 BTUSB_WIDEBAND_SPEECH }, 830 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 831 BTUSB_WIDEBAND_SPEECH }, 832 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 833 BTUSB_WIDEBAND_SPEECH }, 834 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 835 BTUSB_WIDEBAND_SPEECH }, 836 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 837 BTUSB_WIDEBAND_SPEECH }, 838 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 839 BTUSB_WIDEBAND_SPEECH }, 840 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 841 BTUSB_WIDEBAND_SPEECH }, 842 843 /* Barrot Technology Bluetooth devices */ 844 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT }, 845 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT }, 846 847 /* Actions Semiconductor ATS2851 based devices */ 848 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 849 850 /* Silicon Wave based devices */ 851 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 852 853 { } /* Terminating entry */ 854}; 855 856/* The Bluetooth USB module build into some devices needs to be reset on resume, 857 * this is a problem with the platform (likely shutting off all power) not with 858 * the module itself. So we use a DMI list to match known broken platforms. 859 */ 860static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 861 { 862 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 863 .matches = { 864 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 865 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 866 }, 867 }, 868 { 869 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 870 .matches = { 871 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 872 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 873 }, 874 }, 875 { 876 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 877 .matches = { 878 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 879 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 880 }, 881 }, 882 {} 883}; 884 885struct qca_dump_info { 886 /* fields for dump collection */ 887 u16 id_vendor; 888 u16 id_product; 889 u32 fw_version; 890 u32 controller_id; 891 u32 ram_dump_size; 892 u16 ram_dump_seqno; 893}; 894 895#define BTUSB_MAX_ISOC_FRAMES 10 896 897#define BTUSB_INTR_RUNNING 0 898#define BTUSB_BULK_RUNNING 1 899#define BTUSB_ISOC_RUNNING 2 900#define BTUSB_SUSPENDING 3 901#define BTUSB_DID_ISO_RESUME 4 902#define BTUSB_BOOTLOADER 5 903#define BTUSB_DOWNLOADING 6 904#define BTUSB_FIRMWARE_LOADED 7 905#define BTUSB_FIRMWARE_FAILED 8 906#define BTUSB_BOOTING 9 907#define BTUSB_DIAG_RUNNING 10 908#define BTUSB_OOB_WAKE_ENABLED 11 909#define BTUSB_HW_RESET_ACTIVE 12 910#define BTUSB_TX_WAIT_VND_EVT 13 911#define BTUSB_WAKEUP_AUTOSUSPEND 14 912#define BTUSB_USE_ALT3_FOR_WBS 15 913#define BTUSB_ALT6_CONTINUOUS_TX 16 914#define BTUSB_HW_SSR_ACTIVE 17 915 916struct btusb_data { 917 struct hci_dev *hdev; 918 struct usb_device *udev; 919 struct usb_interface *intf; 920 struct usb_interface *isoc; 921 struct usb_interface *diag; 922 unsigned isoc_ifnum; 923 924 unsigned long flags; 925 926 bool poll_sync; 927 int intr_interval; 928 struct work_struct work; 929 struct work_struct waker; 930 struct delayed_work rx_work; 931 932 struct sk_buff_head acl_q; 933 934 struct usb_anchor deferred; 935 struct usb_anchor tx_anchor; 936 int tx_in_flight; 937 spinlock_t txlock; 938 939 struct usb_anchor intr_anchor; 940 struct usb_anchor bulk_anchor; 941 struct usb_anchor isoc_anchor; 942 struct usb_anchor diag_anchor; 943 struct usb_anchor ctrl_anchor; 944 spinlock_t rxlock; 945 946 struct sk_buff *evt_skb; 947 struct sk_buff *acl_skb; 948 struct sk_buff *sco_skb; 949 950 struct usb_endpoint_descriptor *intr_ep; 951 struct usb_endpoint_descriptor *bulk_tx_ep; 952 struct usb_endpoint_descriptor *bulk_rx_ep; 953 struct usb_endpoint_descriptor *isoc_tx_ep; 954 struct usb_endpoint_descriptor *isoc_rx_ep; 955 struct usb_endpoint_descriptor *diag_tx_ep; 956 struct usb_endpoint_descriptor *diag_rx_ep; 957 958 struct gpio_desc *reset_gpio; 959 960 __u8 cmdreq_type; 961 __u8 cmdreq; 962 963 unsigned int sco_num; 964 unsigned int air_mode; 965 bool usb_alt6_packet_flow; 966 int isoc_altsetting; 967 int suspend_count; 968 969 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 970 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 971 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 972 973 int (*setup_on_usb)(struct hci_dev *hdev); 974 975 int (*suspend)(struct hci_dev *hdev); 976 int (*resume)(struct hci_dev *hdev); 977 int (*disconnect)(struct hci_dev *hdev); 978 979 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 980 981 struct qca_dump_info qca_dump; 982}; 983 984static void btusb_reset(struct hci_dev *hdev) 985{ 986 struct btusb_data *data; 987 int err; 988 989 data = hci_get_drvdata(hdev); 990 /* This is not an unbalanced PM reference since the device will reset */ 991 err = usb_autopm_get_interface(data->intf); 992 if (err) { 993 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 994 return; 995 } 996 997 bt_dev_err(hdev, "Resetting usb device."); 998 usb_queue_reset_device(data->intf); 999} 1000 1001static void btusb_intel_reset(struct hci_dev *hdev) 1002{ 1003 struct btusb_data *data = hci_get_drvdata(hdev); 1004 struct gpio_desc *reset_gpio = data->reset_gpio; 1005 struct btintel_data *intel_data = hci_get_priv(hdev); 1006 1007 if (intel_data->acpi_reset_method) { 1008 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 1009 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 1010 return; 1011 } 1012 1013 bt_dev_err(hdev, "Initiating acpi reset method"); 1014 /* If ACPI reset method fails, lets try with legacy GPIO 1015 * toggling 1016 */ 1017 if (!intel_data->acpi_reset_method(hdev)) { 1018 return; 1019 } 1020 } 1021 1022 if (!reset_gpio) { 1023 btusb_reset(hdev); 1024 return; 1025 } 1026 1027 /* 1028 * Toggle the hard reset line if the platform provides one. The reset 1029 * is going to yank the device off the USB and then replug. So doing 1030 * once is enough. The cleanup is handled correctly on the way out 1031 * (standard USB disconnect), and the new device is detected cleanly 1032 * and bound to the driver again like it should be. 1033 */ 1034 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1035 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1036 return; 1037 } 1038 1039 bt_dev_err(hdev, "Initiating HW reset via gpio"); 1040 gpiod_set_value_cansleep(reset_gpio, 1); 1041 msleep(100); 1042 gpiod_set_value_cansleep(reset_gpio, 0); 1043} 1044 1045#define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 1046#define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 1047#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 1048 1049#define RTK_SUB_EVENT_CODE_COREDUMP 0x34 1050 1051struct rtk_dev_coredump_hdr { 1052 u8 type; 1053 u8 code; 1054 u8 reserved[2]; 1055} __packed; 1056 1057static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 1058 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 1059{ 1060 struct sk_buff *skb; 1061 1062 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 1063 if (!skb) 1064 return; 1065 1066 skb_put_data(skb, hdr, sizeof(*hdr)); 1067 if (len) 1068 skb_put_data(skb, buf, len); 1069 1070 if (!hci_devcd_init(hdev, skb->len)) { 1071 hci_devcd_append(hdev, skb); 1072 hci_devcd_complete(hdev); 1073 } else { 1074 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 1075 kfree_skb(skb); 1076 } 1077} 1078 1079static void btusb_rtl_reset(struct hci_dev *hdev) 1080{ 1081 struct btusb_data *data = hci_get_drvdata(hdev); 1082 struct gpio_desc *reset_gpio = data->reset_gpio; 1083 struct rtk_dev_coredump_hdr hdr = { 1084 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1085 }; 1086 1087 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1088 1089 if (!reset_gpio) { 1090 btusb_reset(hdev); 1091 return; 1092 } 1093 1094 /* Toggle the hard reset line. The Realtek device is going to 1095 * yank itself off the USB and then replug. The cleanup is handled 1096 * correctly on the way out (standard USB disconnect), and the new 1097 * device is detected cleanly and bound to the driver again like 1098 * it should be. 1099 */ 1100 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1101 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1102 return; 1103 } 1104 1105 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1106 gpiod_set_value_cansleep(reset_gpio, 1); 1107 msleep(200); 1108 gpiod_set_value_cansleep(reset_gpio, 0); 1109} 1110 1111static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1112{ 1113 struct rtk_dev_coredump_hdr hdr = { 1114 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1115 .code = code, 1116 }; 1117 1118 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1119 1120 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1121} 1122 1123static void btusb_qca_reset(struct hci_dev *hdev) 1124{ 1125 struct btusb_data *data = hci_get_drvdata(hdev); 1126 struct gpio_desc *reset_gpio = data->reset_gpio; 1127 1128 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1129 bt_dev_info(hdev, "Ramdump in progress, defer reset"); 1130 return; 1131 } 1132 1133 if (reset_gpio) { 1134 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1135 1136 /* Toggle the hard reset line. The qca bt device is going to 1137 * yank itself off the USB and then replug. The cleanup is handled 1138 * correctly on the way out (standard USB disconnect), and the new 1139 * device is detected cleanly and bound to the driver again like 1140 * it should be. 1141 */ 1142 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1143 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1144 return; 1145 } 1146 1147 gpiod_set_value_cansleep(reset_gpio, 0); 1148 msleep(200); 1149 gpiod_set_value_cansleep(reset_gpio, 1); 1150 1151 return; 1152 } 1153 1154 btusb_reset(hdev); 1155} 1156 1157static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb) 1158{ 1159 /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug 1160 * packets as ACL frames with connection handle 0x2EDC. These are not real 1161 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent 1162 * "ACL packet for unknown connection handle 3804" errors. 1163 */ 1164 if (skb->len >= 2) { 1165 u16 handle = get_unaligned_le16(skb->data); 1166 1167 if (handle == 0x2EDC) 1168 return HCI_DIAG_PKT; 1169 } 1170 1171 /* Use default packet type for other packets */ 1172 return hci_skb_pkt_type(skb); 1173} 1174 1175static inline void btusb_free_frags(struct btusb_data *data) 1176{ 1177 unsigned long flags; 1178 1179 spin_lock_irqsave(&data->rxlock, flags); 1180 1181 dev_kfree_skb_irq(data->evt_skb); 1182 data->evt_skb = NULL; 1183 1184 dev_kfree_skb_irq(data->acl_skb); 1185 data->acl_skb = NULL; 1186 1187 dev_kfree_skb_irq(data->sco_skb); 1188 data->sco_skb = NULL; 1189 1190 spin_unlock_irqrestore(&data->rxlock, flags); 1191} 1192 1193static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1194{ 1195 if (data->intr_interval) { 1196 /* Trigger dequeue immediately if an event is received */ 1197 schedule_delayed_work(&data->rx_work, 0); 1198 } 1199 1200 return data->recv_event(data->hdev, skb); 1201} 1202 1203static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1204{ 1205 struct sk_buff *skb; 1206 unsigned long flags; 1207 int err = 0; 1208 1209 spin_lock_irqsave(&data->rxlock, flags); 1210 skb = data->evt_skb; 1211 1212 while (count) { 1213 int len; 1214 1215 if (!skb) { 1216 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1217 if (!skb) { 1218 err = -ENOMEM; 1219 break; 1220 } 1221 1222 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1223 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1224 } 1225 1226 len = min_t(uint, hci_skb_expect(skb), count); 1227 skb_put_data(skb, buffer, len); 1228 1229 count -= len; 1230 buffer += len; 1231 hci_skb_expect(skb) -= len; 1232 1233 if (skb->len == HCI_EVENT_HDR_SIZE) { 1234 /* Complete event header */ 1235 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1236 1237 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1238 kfree_skb(skb); 1239 skb = NULL; 1240 1241 err = -EILSEQ; 1242 break; 1243 } 1244 } 1245 1246 if (!hci_skb_expect(skb)) { 1247 /* Each chunk should correspond to at least 1 or more 1248 * events so if there are still bytes left that doesn't 1249 * constitute a new event this is likely a bug in the 1250 * controller. 1251 */ 1252 if (count && count < HCI_EVENT_HDR_SIZE) { 1253 bt_dev_warn(data->hdev, 1254 "Unexpected continuation: %d bytes", 1255 count); 1256 count = 0; 1257 } 1258 1259 /* Complete frame */ 1260 btusb_recv_event(data, skb); 1261 skb = NULL; 1262 } 1263 } 1264 1265 data->evt_skb = skb; 1266 spin_unlock_irqrestore(&data->rxlock, flags); 1267 1268 return err; 1269} 1270 1271static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1272{ 1273 /* Only queue ACL packet if intr_interval is set as it means 1274 * force_poll_sync has been enabled. 1275 */ 1276 if (!data->intr_interval) 1277 return data->recv_acl(data->hdev, skb); 1278 1279 skb_queue_tail(&data->acl_q, skb); 1280 schedule_delayed_work(&data->rx_work, data->intr_interval); 1281 1282 return 0; 1283} 1284 1285static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1286{ 1287 struct sk_buff *skb; 1288 unsigned long flags; 1289 int err = 0; 1290 1291 spin_lock_irqsave(&data->rxlock, flags); 1292 skb = data->acl_skb; 1293 1294 while (count) { 1295 int len; 1296 1297 if (!skb) { 1298 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1299 if (!skb) { 1300 err = -ENOMEM; 1301 break; 1302 } 1303 1304 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1305 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1306 } 1307 1308 len = min_t(uint, hci_skb_expect(skb), count); 1309 skb_put_data(skb, buffer, len); 1310 1311 count -= len; 1312 buffer += len; 1313 hci_skb_expect(skb) -= len; 1314 1315 if (skb->len == HCI_ACL_HDR_SIZE) { 1316 __le16 dlen = hci_acl_hdr(skb)->dlen; 1317 1318 /* Complete ACL header */ 1319 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1320 1321 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1322 kfree_skb(skb); 1323 skb = NULL; 1324 1325 err = -EILSEQ; 1326 break; 1327 } 1328 } 1329 1330 if (!hci_skb_expect(skb)) { 1331 /* Complete frame */ 1332 btusb_recv_acl(data, skb); 1333 skb = NULL; 1334 } 1335 } 1336 1337 data->acl_skb = skb; 1338 spin_unlock_irqrestore(&data->rxlock, flags); 1339 1340 return err; 1341} 1342 1343static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1344 struct hci_sco_hdr *hdr) 1345{ 1346 __u16 handle; 1347 1348 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1349 // Can't validate, userspace controls everything. 1350 return true; 1351 1352 /* 1353 * USB isochronous transfers are not designed to be reliable and may 1354 * lose fragments. When this happens, the next first fragment 1355 * encountered might actually be a continuation fragment. 1356 * Validate the handle to detect it and drop it, or else the upper 1357 * layer will get garbage for a while. 1358 */ 1359 1360 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1361 1362 switch (hci_conn_lookup_type(hdev, handle)) { 1363 case SCO_LINK: 1364 case ESCO_LINK: 1365 return true; 1366 default: 1367 return false; 1368 } 1369} 1370 1371static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1372{ 1373 struct sk_buff *skb; 1374 unsigned long flags; 1375 int err = 0; 1376 1377 spin_lock_irqsave(&data->rxlock, flags); 1378 skb = data->sco_skb; 1379 1380 while (count) { 1381 int len; 1382 1383 if (!skb) { 1384 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1385 if (!skb) { 1386 err = -ENOMEM; 1387 break; 1388 } 1389 1390 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1391 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1392 } 1393 1394 len = min_t(uint, hci_skb_expect(skb), count); 1395 skb_put_data(skb, buffer, len); 1396 1397 count -= len; 1398 buffer += len; 1399 hci_skb_expect(skb) -= len; 1400 1401 if (skb->len == HCI_SCO_HDR_SIZE) { 1402 /* Complete SCO header */ 1403 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1404 1405 hci_skb_expect(skb) = hdr->dlen; 1406 1407 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1408 !btusb_validate_sco_handle(data->hdev, hdr)) { 1409 kfree_skb(skb); 1410 skb = NULL; 1411 1412 err = -EILSEQ; 1413 break; 1414 } 1415 } 1416 1417 if (!hci_skb_expect(skb)) { 1418 /* Complete frame */ 1419 hci_recv_frame(data->hdev, skb); 1420 skb = NULL; 1421 } 1422 } 1423 1424 data->sco_skb = skb; 1425 spin_unlock_irqrestore(&data->rxlock, flags); 1426 1427 return err; 1428} 1429 1430static void btusb_intr_complete(struct urb *urb) 1431{ 1432 struct hci_dev *hdev = urb->context; 1433 struct btusb_data *data = hci_get_drvdata(hdev); 1434 int err; 1435 1436 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1437 urb->actual_length); 1438 1439 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1440 return; 1441 1442 if (urb->status == 0) { 1443 hdev->stat.byte_rx += urb->actual_length; 1444 1445 if (btusb_recv_intr(data, urb->transfer_buffer, 1446 urb->actual_length) < 0) { 1447 bt_dev_err(hdev, "corrupted event packet"); 1448 hdev->stat.err_rx++; 1449 } 1450 } else if (urb->status == -ENOENT) { 1451 /* Avoid suspend failed when usb_kill_urb */ 1452 return; 1453 } 1454 1455 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1456 return; 1457 1458 usb_mark_last_busy(data->udev); 1459 usb_anchor_urb(urb, &data->intr_anchor); 1460 1461 err = usb_submit_urb(urb, GFP_ATOMIC); 1462 if (err < 0) { 1463 /* -EPERM: urb is being killed; 1464 * -ENODEV: device got disconnected 1465 */ 1466 if (err != -EPERM && err != -ENODEV) 1467 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1468 urb, -err); 1469 if (err != -EPERM) 1470 hci_cmd_sync_cancel(hdev, -err); 1471 usb_unanchor_urb(urb); 1472 } 1473} 1474 1475static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1476{ 1477 struct btusb_data *data = hci_get_drvdata(hdev); 1478 struct urb *urb; 1479 unsigned char *buf; 1480 unsigned int pipe; 1481 int err, size; 1482 1483 BT_DBG("%s", hdev->name); 1484 1485 if (!data->intr_ep) 1486 return -ENODEV; 1487 1488 urb = usb_alloc_urb(0, mem_flags); 1489 if (!urb) 1490 return -ENOMEM; 1491 1492 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1493 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1494 /* Fake CSR devices don't seem to support sort-transter */ 1495 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1496 else 1497 /* Use maximum HCI Event size so the USB stack handles 1498 * ZPL/short-transfer automatically. 1499 */ 1500 size = HCI_MAX_EVENT_SIZE; 1501 1502 buf = kmalloc(size, mem_flags); 1503 if (!buf) { 1504 usb_free_urb(urb); 1505 return -ENOMEM; 1506 } 1507 1508 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1509 1510 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1511 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1512 1513 urb->transfer_flags |= URB_FREE_BUFFER; 1514 1515 usb_anchor_urb(urb, &data->intr_anchor); 1516 1517 err = usb_submit_urb(urb, mem_flags); 1518 if (err < 0) { 1519 if (err != -EPERM && err != -ENODEV) 1520 bt_dev_err(hdev, "urb %p submission failed (%d)", 1521 urb, -err); 1522 if (err != -EPERM) 1523 hci_cmd_sync_cancel(hdev, -err); 1524 usb_unanchor_urb(urb); 1525 } 1526 1527 /* Only initialize intr_interval if URB poll sync is enabled */ 1528 if (!data->poll_sync) 1529 goto done; 1530 1531 /* The units are frames (milliseconds) for full and low speed devices, 1532 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1533 * devices. 1534 * 1535 * This is done once on open/resume so it shouldn't change even if 1536 * force_poll_sync changes. 1537 */ 1538 switch (urb->dev->speed) { 1539 case USB_SPEED_SUPER_PLUS: 1540 case USB_SPEED_SUPER: /* units are 125us */ 1541 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1542 break; 1543 default: 1544 data->intr_interval = msecs_to_jiffies(urb->interval); 1545 break; 1546 } 1547 1548done: 1549 usb_free_urb(urb); 1550 1551 return err; 1552} 1553 1554static void btusb_bulk_complete(struct urb *urb) 1555{ 1556 struct hci_dev *hdev = urb->context; 1557 struct btusb_data *data = hci_get_drvdata(hdev); 1558 int err; 1559 1560 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1561 urb->actual_length); 1562 1563 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1564 return; 1565 1566 if (urb->status == 0) { 1567 hdev->stat.byte_rx += urb->actual_length; 1568 1569 if (data->recv_bulk(data, urb->transfer_buffer, 1570 urb->actual_length) < 0) { 1571 bt_dev_err(hdev, "corrupted ACL packet"); 1572 hdev->stat.err_rx++; 1573 } 1574 } else if (urb->status == -ENOENT) { 1575 /* Avoid suspend failed when usb_kill_urb */ 1576 return; 1577 } 1578 1579 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1580 return; 1581 1582 usb_anchor_urb(urb, &data->bulk_anchor); 1583 usb_mark_last_busy(data->udev); 1584 1585 err = usb_submit_urb(urb, GFP_ATOMIC); 1586 if (err < 0) { 1587 /* -EPERM: urb is being killed; 1588 * -ENODEV: device got disconnected 1589 */ 1590 if (err != -EPERM && err != -ENODEV) 1591 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1592 urb, -err); 1593 usb_unanchor_urb(urb); 1594 } 1595} 1596 1597static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1598{ 1599 struct btusb_data *data = hci_get_drvdata(hdev); 1600 struct urb *urb; 1601 unsigned char *buf; 1602 unsigned int pipe; 1603 int err, size = HCI_MAX_FRAME_SIZE; 1604 1605 BT_DBG("%s", hdev->name); 1606 1607 if (!data->bulk_rx_ep) 1608 return -ENODEV; 1609 1610 urb = usb_alloc_urb(0, mem_flags); 1611 if (!urb) 1612 return -ENOMEM; 1613 1614 buf = kmalloc(size, mem_flags); 1615 if (!buf) { 1616 usb_free_urb(urb); 1617 return -ENOMEM; 1618 } 1619 1620 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1621 1622 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1623 btusb_bulk_complete, hdev); 1624 1625 urb->transfer_flags |= URB_FREE_BUFFER; 1626 1627 usb_mark_last_busy(data->udev); 1628 usb_anchor_urb(urb, &data->bulk_anchor); 1629 1630 err = usb_submit_urb(urb, mem_flags); 1631 if (err < 0) { 1632 if (err != -EPERM && err != -ENODEV) 1633 bt_dev_err(hdev, "urb %p submission failed (%d)", 1634 urb, -err); 1635 usb_unanchor_urb(urb); 1636 } 1637 1638 usb_free_urb(urb); 1639 1640 return err; 1641} 1642 1643static void btusb_isoc_complete(struct urb *urb) 1644{ 1645 struct hci_dev *hdev = urb->context; 1646 struct btusb_data *data = hci_get_drvdata(hdev); 1647 int i, err; 1648 1649 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1650 urb->actual_length); 1651 1652 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1653 return; 1654 1655 if (urb->status == 0) { 1656 for (i = 0; i < urb->number_of_packets; i++) { 1657 unsigned int offset = urb->iso_frame_desc[i].offset; 1658 unsigned int length = urb->iso_frame_desc[i].actual_length; 1659 1660 if (urb->iso_frame_desc[i].status) 1661 continue; 1662 1663 hdev->stat.byte_rx += length; 1664 1665 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1666 length) < 0) { 1667 bt_dev_err(hdev, "corrupted SCO packet"); 1668 hdev->stat.err_rx++; 1669 } 1670 } 1671 } else if (urb->status == -ENOENT) { 1672 /* Avoid suspend failed when usb_kill_urb */ 1673 return; 1674 } 1675 1676 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1677 return; 1678 1679 usb_anchor_urb(urb, &data->isoc_anchor); 1680 1681 err = usb_submit_urb(urb, GFP_ATOMIC); 1682 if (err < 0) { 1683 /* -EPERM: urb is being killed; 1684 * -ENODEV: device got disconnected 1685 */ 1686 if (err != -EPERM && err != -ENODEV) 1687 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1688 urb, -err); 1689 usb_unanchor_urb(urb); 1690 } 1691} 1692 1693static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1694 int mtu, struct btusb_data *data) 1695{ 1696 int i = 0, offset = 0; 1697 unsigned int interval; 1698 1699 BT_DBG("len %d mtu %d", len, mtu); 1700 1701 /* For mSBC ALT 6 settings some chips need to transmit the data 1702 * continuously without the zero length of USB packets. 1703 */ 1704 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1705 goto ignore_usb_alt6_packet_flow; 1706 1707 /* For mSBC ALT 6 setting the host will send the packet at continuous 1708 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1709 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1710 * To maintain the rate we send 63bytes of usb packets alternatively for 1711 * 7ms and 8ms to maintain the rate as 7.5ms. 1712 */ 1713 if (data->usb_alt6_packet_flow) { 1714 interval = 7; 1715 data->usb_alt6_packet_flow = false; 1716 } else { 1717 interval = 6; 1718 data->usb_alt6_packet_flow = true; 1719 } 1720 1721 for (i = 0; i < interval; i++) { 1722 urb->iso_frame_desc[i].offset = offset; 1723 urb->iso_frame_desc[i].length = offset; 1724 } 1725 1726ignore_usb_alt6_packet_flow: 1727 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1728 urb->iso_frame_desc[i].offset = offset; 1729 urb->iso_frame_desc[i].length = len; 1730 i++; 1731 } 1732 1733 urb->number_of_packets = i; 1734} 1735 1736static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1737{ 1738 int i, offset = 0; 1739 1740 BT_DBG("len %d mtu %d", len, mtu); 1741 1742 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1743 i++, offset += mtu, len -= mtu) { 1744 urb->iso_frame_desc[i].offset = offset; 1745 urb->iso_frame_desc[i].length = mtu; 1746 } 1747 1748 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1749 urb->iso_frame_desc[i].offset = offset; 1750 urb->iso_frame_desc[i].length = len; 1751 i++; 1752 } 1753 1754 urb->number_of_packets = i; 1755} 1756 1757static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1758{ 1759 struct btusb_data *data = hci_get_drvdata(hdev); 1760 struct urb *urb; 1761 unsigned char *buf; 1762 unsigned int pipe; 1763 int err, size; 1764 1765 BT_DBG("%s", hdev->name); 1766 1767 if (!data->isoc_rx_ep) 1768 return -ENODEV; 1769 1770 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1771 if (!urb) 1772 return -ENOMEM; 1773 1774 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1775 BTUSB_MAX_ISOC_FRAMES; 1776 1777 buf = kmalloc(size, mem_flags); 1778 if (!buf) { 1779 usb_free_urb(urb); 1780 return -ENOMEM; 1781 } 1782 1783 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1784 1785 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1786 hdev, data->isoc_rx_ep->bInterval); 1787 1788 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1789 1790 __fill_isoc_descriptor(urb, size, 1791 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1792 1793 usb_anchor_urb(urb, &data->isoc_anchor); 1794 1795 err = usb_submit_urb(urb, mem_flags); 1796 if (err < 0) { 1797 if (err != -EPERM && err != -ENODEV) 1798 bt_dev_err(hdev, "urb %p submission failed (%d)", 1799 urb, -err); 1800 usb_unanchor_urb(urb); 1801 } 1802 1803 usb_free_urb(urb); 1804 1805 return err; 1806} 1807 1808static void btusb_diag_complete(struct urb *urb) 1809{ 1810 struct hci_dev *hdev = urb->context; 1811 struct btusb_data *data = hci_get_drvdata(hdev); 1812 int err; 1813 1814 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1815 urb->actual_length); 1816 1817 if (urb->status == 0) { 1818 struct sk_buff *skb; 1819 1820 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1821 if (skb) { 1822 skb_put_data(skb, urb->transfer_buffer, 1823 urb->actual_length); 1824 hci_recv_diag(hdev, skb); 1825 } 1826 } else if (urb->status == -ENOENT) { 1827 /* Avoid suspend failed when usb_kill_urb */ 1828 return; 1829 } 1830 1831 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1832 return; 1833 1834 usb_anchor_urb(urb, &data->diag_anchor); 1835 usb_mark_last_busy(data->udev); 1836 1837 err = usb_submit_urb(urb, GFP_ATOMIC); 1838 if (err < 0) { 1839 /* -EPERM: urb is being killed; 1840 * -ENODEV: device got disconnected 1841 */ 1842 if (err != -EPERM && err != -ENODEV) 1843 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1844 urb, -err); 1845 usb_unanchor_urb(urb); 1846 } 1847} 1848 1849static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1850{ 1851 struct btusb_data *data = hci_get_drvdata(hdev); 1852 struct urb *urb; 1853 unsigned char *buf; 1854 unsigned int pipe; 1855 int err, size = HCI_MAX_FRAME_SIZE; 1856 1857 BT_DBG("%s", hdev->name); 1858 1859 if (!data->diag_rx_ep) 1860 return -ENODEV; 1861 1862 urb = usb_alloc_urb(0, mem_flags); 1863 if (!urb) 1864 return -ENOMEM; 1865 1866 buf = kmalloc(size, mem_flags); 1867 if (!buf) { 1868 usb_free_urb(urb); 1869 return -ENOMEM; 1870 } 1871 1872 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1873 1874 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1875 btusb_diag_complete, hdev); 1876 1877 urb->transfer_flags |= URB_FREE_BUFFER; 1878 1879 usb_mark_last_busy(data->udev); 1880 usb_anchor_urb(urb, &data->diag_anchor); 1881 1882 err = usb_submit_urb(urb, mem_flags); 1883 if (err < 0) { 1884 if (err != -EPERM && err != -ENODEV) 1885 bt_dev_err(hdev, "urb %p submission failed (%d)", 1886 urb, -err); 1887 usb_unanchor_urb(urb); 1888 } 1889 1890 usb_free_urb(urb); 1891 1892 return err; 1893} 1894 1895static void btusb_tx_complete(struct urb *urb) 1896{ 1897 struct sk_buff *skb = urb->context; 1898 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1899 struct btusb_data *data = hci_get_drvdata(hdev); 1900 unsigned long flags; 1901 1902 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1903 urb->actual_length); 1904 1905 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1906 goto done; 1907 1908 if (!urb->status) { 1909 hdev->stat.byte_tx += urb->transfer_buffer_length; 1910 } else { 1911 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1912 hci_cmd_sync_cancel(hdev, -urb->status); 1913 hdev->stat.err_tx++; 1914 } 1915 1916done: 1917 spin_lock_irqsave(&data->txlock, flags); 1918 data->tx_in_flight--; 1919 spin_unlock_irqrestore(&data->txlock, flags); 1920 1921 kfree(urb->setup_packet); 1922 1923 kfree_skb(skb); 1924} 1925 1926static void btusb_isoc_tx_complete(struct urb *urb) 1927{ 1928 struct sk_buff *skb = urb->context; 1929 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1930 1931 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1932 urb->actual_length); 1933 1934 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1935 goto done; 1936 1937 if (!urb->status) 1938 hdev->stat.byte_tx += urb->transfer_buffer_length; 1939 else 1940 hdev->stat.err_tx++; 1941 1942done: 1943 kfree(urb->setup_packet); 1944 1945 kfree_skb(skb); 1946} 1947 1948static int btusb_open(struct hci_dev *hdev) 1949{ 1950 struct btusb_data *data = hci_get_drvdata(hdev); 1951 int err; 1952 1953 BT_DBG("%s", hdev->name); 1954 1955 err = usb_autopm_get_interface(data->intf); 1956 if (err < 0) 1957 return err; 1958 1959 /* Patching USB firmware files prior to starting any URBs of HCI path 1960 * It is more safe to use USB bulk channel for downloading USB patch 1961 */ 1962 if (data->setup_on_usb) { 1963 err = data->setup_on_usb(hdev); 1964 if (err < 0) 1965 goto setup_fail; 1966 } 1967 1968 data->intf->needs_remote_wakeup = 1; 1969 1970 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1971 goto done; 1972 1973 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1974 if (err < 0) 1975 goto failed; 1976 1977 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1978 if (err < 0) { 1979 usb_kill_anchored_urbs(&data->intr_anchor); 1980 goto failed; 1981 } 1982 1983 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1984 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1985 1986 if (data->diag) { 1987 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1988 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1989 } 1990 1991done: 1992 usb_autopm_put_interface(data->intf); 1993 return 0; 1994 1995failed: 1996 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1997setup_fail: 1998 usb_autopm_put_interface(data->intf); 1999 return err; 2000} 2001 2002static void btusb_stop_traffic(struct btusb_data *data) 2003{ 2004 usb_kill_anchored_urbs(&data->intr_anchor); 2005 usb_kill_anchored_urbs(&data->bulk_anchor); 2006 usb_kill_anchored_urbs(&data->isoc_anchor); 2007 usb_kill_anchored_urbs(&data->diag_anchor); 2008 usb_kill_anchored_urbs(&data->ctrl_anchor); 2009} 2010 2011static int btusb_close(struct hci_dev *hdev) 2012{ 2013 struct btusb_data *data = hci_get_drvdata(hdev); 2014 int err; 2015 2016 BT_DBG("%s", hdev->name); 2017 2018 cancel_delayed_work(&data->rx_work); 2019 cancel_work_sync(&data->work); 2020 cancel_work_sync(&data->waker); 2021 2022 skb_queue_purge(&data->acl_q); 2023 2024 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2025 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 2026 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2027 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 2028 2029 btusb_stop_traffic(data); 2030 btusb_free_frags(data); 2031 2032 err = usb_autopm_get_interface(data->intf); 2033 if (err < 0) 2034 goto failed; 2035 2036 data->intf->needs_remote_wakeup = 0; 2037 2038 /* Enable remote wake up for auto-suspend */ 2039 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 2040 data->intf->needs_remote_wakeup = 1; 2041 2042 usb_autopm_put_interface(data->intf); 2043 2044failed: 2045 usb_scuttle_anchored_urbs(&data->deferred); 2046 return 0; 2047} 2048 2049static int btusb_flush(struct hci_dev *hdev) 2050{ 2051 struct btusb_data *data = hci_get_drvdata(hdev); 2052 2053 BT_DBG("%s", hdev->name); 2054 2055 cancel_delayed_work(&data->rx_work); 2056 2057 skb_queue_purge(&data->acl_q); 2058 2059 usb_kill_anchored_urbs(&data->tx_anchor); 2060 btusb_free_frags(data); 2061 2062 return 0; 2063} 2064 2065static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 2066{ 2067 struct btusb_data *data = hci_get_drvdata(hdev); 2068 struct usb_ctrlrequest *dr; 2069 struct urb *urb; 2070 unsigned int pipe; 2071 2072 urb = usb_alloc_urb(0, GFP_KERNEL); 2073 if (!urb) 2074 return ERR_PTR(-ENOMEM); 2075 2076 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2077 if (!dr) { 2078 usb_free_urb(urb); 2079 return ERR_PTR(-ENOMEM); 2080 } 2081 2082 dr->bRequestType = data->cmdreq_type; 2083 dr->bRequest = data->cmdreq; 2084 dr->wIndex = 0; 2085 dr->wValue = 0; 2086 dr->wLength = __cpu_to_le16(skb->len); 2087 2088 pipe = usb_sndctrlpipe(data->udev, 0x00); 2089 2090 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2091 skb->data, skb->len, btusb_tx_complete, skb); 2092 2093 skb->dev = (void *)hdev; 2094 2095 return urb; 2096} 2097 2098static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2099{ 2100 struct btusb_data *data = hci_get_drvdata(hdev); 2101 struct urb *urb; 2102 unsigned int pipe; 2103 2104 if (!data->bulk_tx_ep) 2105 return ERR_PTR(-ENODEV); 2106 2107 urb = usb_alloc_urb(0, GFP_KERNEL); 2108 if (!urb) 2109 return ERR_PTR(-ENOMEM); 2110 2111 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2112 2113 usb_fill_bulk_urb(urb, data->udev, pipe, 2114 skb->data, skb->len, btusb_tx_complete, skb); 2115 2116 skb->dev = (void *)hdev; 2117 2118 return urb; 2119} 2120 2121static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2122{ 2123 struct btusb_data *data = hci_get_drvdata(hdev); 2124 struct urb *urb; 2125 unsigned int pipe; 2126 2127 if (!data->isoc_tx_ep) 2128 return ERR_PTR(-ENODEV); 2129 2130 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2131 if (!urb) 2132 return ERR_PTR(-ENOMEM); 2133 2134 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2135 2136 usb_fill_int_urb(urb, data->udev, pipe, 2137 skb->data, skb->len, btusb_isoc_tx_complete, 2138 skb, data->isoc_tx_ep->bInterval); 2139 2140 urb->transfer_flags = URB_ISO_ASAP; 2141 2142 if (data->isoc_altsetting == 6) 2143 __fill_isoc_descriptor_msbc(urb, skb->len, 2144 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2145 data); 2146 else 2147 __fill_isoc_descriptor(urb, skb->len, 2148 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2149 skb->dev = (void *)hdev; 2150 2151 return urb; 2152} 2153 2154static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2155{ 2156 struct btusb_data *data = hci_get_drvdata(hdev); 2157 int err; 2158 2159 usb_anchor_urb(urb, &data->tx_anchor); 2160 2161 err = usb_submit_urb(urb, GFP_KERNEL); 2162 if (err < 0) { 2163 if (err != -EPERM && err != -ENODEV) 2164 bt_dev_err(hdev, "urb %p submission failed (%d)", 2165 urb, -err); 2166 kfree(urb->setup_packet); 2167 usb_unanchor_urb(urb); 2168 } else { 2169 usb_mark_last_busy(data->udev); 2170 } 2171 2172 usb_free_urb(urb); 2173 return err; 2174} 2175 2176static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2177{ 2178 struct btusb_data *data = hci_get_drvdata(hdev); 2179 unsigned long flags; 2180 bool suspending; 2181 2182 spin_lock_irqsave(&data->txlock, flags); 2183 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2184 if (!suspending) 2185 data->tx_in_flight++; 2186 spin_unlock_irqrestore(&data->txlock, flags); 2187 2188 if (!suspending) 2189 return submit_tx_urb(hdev, urb); 2190 2191 usb_anchor_urb(urb, &data->deferred); 2192 schedule_work(&data->waker); 2193 2194 usb_free_urb(urb); 2195 return 0; 2196} 2197 2198static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2199{ 2200 struct urb *urb; 2201 2202 BT_DBG("%s", hdev->name); 2203 2204 switch (hci_skb_pkt_type(skb)) { 2205 case HCI_COMMAND_PKT: 2206 urb = alloc_ctrl_urb(hdev, skb); 2207 if (IS_ERR(urb)) 2208 return PTR_ERR(urb); 2209 2210 hdev->stat.cmd_tx++; 2211 return submit_or_queue_tx_urb(hdev, urb); 2212 2213 case HCI_ACLDATA_PKT: 2214 urb = alloc_bulk_urb(hdev, skb); 2215 if (IS_ERR(urb)) 2216 return PTR_ERR(urb); 2217 2218 hdev->stat.acl_tx++; 2219 return submit_or_queue_tx_urb(hdev, urb); 2220 2221 case HCI_SCODATA_PKT: 2222 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2223 hci_conn_num(hdev, SCO_LINK) < 1) 2224 return -ENODEV; 2225 2226 urb = alloc_isoc_urb(hdev, skb); 2227 if (IS_ERR(urb)) 2228 return PTR_ERR(urb); 2229 2230 hdev->stat.sco_tx++; 2231 return submit_tx_urb(hdev, urb); 2232 2233 case HCI_ISODATA_PKT: 2234 urb = alloc_bulk_urb(hdev, skb); 2235 if (IS_ERR(urb)) 2236 return PTR_ERR(urb); 2237 2238 return submit_or_queue_tx_urb(hdev, urb); 2239 } 2240 2241 return -EILSEQ; 2242} 2243 2244static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2245{ 2246 struct btusb_data *data = hci_get_drvdata(hdev); 2247 2248 BT_DBG("%s evt %d", hdev->name, evt); 2249 2250 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2251 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2252 data->air_mode = evt; 2253 schedule_work(&data->work); 2254 } 2255} 2256 2257static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2258{ 2259 struct btusb_data *data = hci_get_drvdata(hdev); 2260 struct usb_interface *intf = data->isoc; 2261 struct usb_endpoint_descriptor *ep_desc; 2262 int i, err; 2263 2264 if (!data->isoc) 2265 return -ENODEV; 2266 2267 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2268 if (err < 0) { 2269 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2270 return err; 2271 } 2272 2273 data->isoc_altsetting = altsetting; 2274 2275 data->isoc_tx_ep = NULL; 2276 data->isoc_rx_ep = NULL; 2277 2278 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2279 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2280 2281 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2282 data->isoc_tx_ep = ep_desc; 2283 continue; 2284 } 2285 2286 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2287 data->isoc_rx_ep = ep_desc; 2288 continue; 2289 } 2290 } 2291 2292 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2293 bt_dev_err(hdev, "invalid SCO descriptors"); 2294 return -ENODEV; 2295 } 2296 2297 return 0; 2298} 2299 2300static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2301{ 2302 struct btusb_data *data = hci_get_drvdata(hdev); 2303 int err; 2304 2305 if (data->isoc_altsetting != new_alts) { 2306 unsigned long flags; 2307 2308 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2309 usb_kill_anchored_urbs(&data->isoc_anchor); 2310 2311 /* When isochronous alternate setting needs to be 2312 * changed, because SCO connection has been added 2313 * or removed, a packet fragment may be left in the 2314 * reassembling state. This could lead to wrongly 2315 * assembled fragments. 2316 * 2317 * Clear outstanding fragment when selecting a new 2318 * alternate setting. 2319 */ 2320 spin_lock_irqsave(&data->rxlock, flags); 2321 dev_kfree_skb_irq(data->sco_skb); 2322 data->sco_skb = NULL; 2323 spin_unlock_irqrestore(&data->rxlock, flags); 2324 2325 err = __set_isoc_interface(hdev, new_alts); 2326 if (err < 0) 2327 return err; 2328 } 2329 2330 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2331 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2332 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2333 else 2334 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2335 } 2336 2337 return 0; 2338} 2339 2340static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2341 int alt) 2342{ 2343 struct usb_interface *intf = data->isoc; 2344 int i; 2345 2346 BT_DBG("Looking for Alt no :%d", alt); 2347 2348 if (!intf) 2349 return NULL; 2350 2351 for (i = 0; i < intf->num_altsetting; i++) { 2352 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2353 return &intf->altsetting[i]; 2354 } 2355 2356 return NULL; 2357} 2358 2359static void btusb_work(struct work_struct *work) 2360{ 2361 struct btusb_data *data = container_of(work, struct btusb_data, work); 2362 struct hci_dev *hdev = data->hdev; 2363 int new_alts = 0; 2364 int err; 2365 2366 if (data->sco_num > 0) { 2367 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2368 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2369 if (err < 0) { 2370 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2371 usb_kill_anchored_urbs(&data->isoc_anchor); 2372 return; 2373 } 2374 2375 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2376 } 2377 2378 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2379 if (hdev->voice_setting & 0x0020) { 2380 static const int alts[3] = { 2, 4, 5 }; 2381 unsigned int sco_idx; 2382 2383 sco_idx = min_t(unsigned int, data->sco_num - 1, 2384 ARRAY_SIZE(alts) - 1); 2385 new_alts = alts[sco_idx]; 2386 } else { 2387 new_alts = data->sco_num; 2388 } 2389 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2390 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2391 * many adapters do not support it. Alt 1 appears to 2392 * work for all adapters that do not have alt 6, and 2393 * which work with WBS at all. Some devices prefer 2394 * alt 3 (HCI payload >= 60 Bytes let air packet 2395 * data satisfy 60 bytes), requiring 2396 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2397 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2398 */ 2399 if (btusb_find_altsetting(data, 6)) 2400 new_alts = 6; 2401 else if (btusb_find_altsetting(data, 3) && 2402 hdev->sco_mtu >= 72 && 2403 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2404 new_alts = 3; 2405 else 2406 new_alts = 1; 2407 } 2408 2409 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2410 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2411 } else { 2412 usb_kill_anchored_urbs(&data->isoc_anchor); 2413 2414 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2415 __set_isoc_interface(hdev, 0); 2416 2417 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2418 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2419 } 2420} 2421 2422static void btusb_waker(struct work_struct *work) 2423{ 2424 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2425 int err; 2426 2427 err = usb_autopm_get_interface(data->intf); 2428 if (err < 0) 2429 return; 2430 2431 usb_autopm_put_interface(data->intf); 2432} 2433 2434static void btusb_rx_work(struct work_struct *work) 2435{ 2436 struct btusb_data *data = container_of(work, struct btusb_data, 2437 rx_work.work); 2438 struct sk_buff *skb; 2439 2440 /* Dequeue ACL data received during the interval */ 2441 while ((skb = skb_dequeue(&data->acl_q))) 2442 data->recv_acl(data->hdev, skb); 2443} 2444 2445static int btusb_setup_bcm92035(struct hci_dev *hdev) 2446{ 2447 struct sk_buff *skb; 2448 u8 val = 0x00; 2449 2450 BT_DBG("%s", hdev->name); 2451 2452 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2453 if (IS_ERR(skb)) 2454 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2455 else 2456 kfree_skb(skb); 2457 2458 return 0; 2459} 2460 2461static int btusb_setup_csr(struct hci_dev *hdev) 2462{ 2463 struct btusb_data *data = hci_get_drvdata(hdev); 2464 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2465 struct hci_rp_read_local_version *rp; 2466 struct sk_buff *skb; 2467 bool is_fake = false; 2468 int ret; 2469 2470 BT_DBG("%s", hdev->name); 2471 2472 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2473 HCI_INIT_TIMEOUT); 2474 if (IS_ERR(skb)) { 2475 int err = PTR_ERR(skb); 2476 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2477 return err; 2478 } 2479 2480 rp = skb_pull_data(skb, sizeof(*rp)); 2481 if (!rp) { 2482 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2483 kfree_skb(skb); 2484 return -EIO; 2485 } 2486 2487 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2488 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2489 2490 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2491 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2492 le16_to_cpu(rp->manufacturer)); 2493 2494 /* Detect a wide host of Chinese controllers that aren't CSR. 2495 * 2496 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2497 * 2498 * The main thing they have in common is that these are really popular low-cost 2499 * options that support newer Bluetooth versions but rely on heavy VID/PID 2500 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2501 * 2502 * We detect actual CSR devices by checking that the HCI manufacturer code 2503 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2504 * HCI rev values always match. As they both store the firmware number. 2505 */ 2506 if (le16_to_cpu(rp->manufacturer) != 10 || 2507 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2508 is_fake = true; 2509 2510 /* Known legit CSR firmware build numbers and their supported BT versions: 2511 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2512 * - 1.2 (0x2) -> 0x04d9, 0x0529 2513 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2514 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2515 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2516 * 2517 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2518 * support BT 1.1 only; so it's a dead giveaway when some 2519 * third-party BT 4.0 dongle reuses it. 2520 */ 2521 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2522 rp->hci_ver > BLUETOOTH_VER_1_1) 2523 is_fake = true; 2524 2525 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2526 rp->hci_ver > BLUETOOTH_VER_1_2) 2527 is_fake = true; 2528 2529 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2530 rp->hci_ver > BLUETOOTH_VER_2_0) 2531 is_fake = true; 2532 2533 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2534 rp->hci_ver > BLUETOOTH_VER_2_1) 2535 is_fake = true; 2536 2537 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2538 rp->hci_ver > BLUETOOTH_VER_4_0) 2539 is_fake = true; 2540 2541 /* Other clones which beat all the above checks */ 2542 else if (bcdDevice == 0x0134 && 2543 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2544 rp->hci_ver == BLUETOOTH_VER_2_0) 2545 is_fake = true; 2546 2547 if (is_fake) { 2548 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2549 2550 /* Generally these clones have big discrepancies between 2551 * advertised features and what's actually supported. 2552 * Probably will need to be expanded in the future; 2553 * without these the controller will lock up. 2554 */ 2555 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 2556 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 2557 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL); 2558 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER); 2559 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING); 2560 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE); 2561 2562 /* Clear the reset quirk since this is not an actual 2563 * early Bluetooth 1.1 device from CSR. 2564 */ 2565 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 2566 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 2567 2568 /* 2569 * Special workaround for these BT 4.0 chip clones, and potentially more: 2570 * 2571 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2572 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2573 * 2574 * These controllers are really messed-up. 2575 * 2576 * 1. Their bulk RX endpoint will never report any data unless 2577 * the device was suspended at least once (yes, really). 2578 * 2. They will not wakeup when autosuspended and receiving data 2579 * on their bulk RX endpoint from e.g. a keyboard or mouse 2580 * (IOW remote-wakeup support is broken for the bulk endpoint). 2581 * 2582 * To fix 1. enable runtime-suspend, force-suspend the 2583 * HCI and then wake-it up by disabling runtime-suspend. 2584 * 2585 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2586 * will still be autosuspended when it is not open. 2587 * 2588 * -- 2589 * 2590 * Because these are widespread problems we prefer generic solutions; so 2591 * apply this initialization quirk to every controller that gets here, 2592 * it should be harmless. The alternative is to not work at all. 2593 */ 2594 pm_runtime_allow(&data->udev->dev); 2595 2596 ret = pm_runtime_suspend(&data->udev->dev); 2597 if (ret >= 0) 2598 msleep(200); 2599 else 2600 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2601 2602 pm_runtime_forbid(&data->udev->dev); 2603 2604 device_set_wakeup_capable(&data->udev->dev, false); 2605 2606 /* Re-enable autosuspend if this was requested */ 2607 if (enable_autosuspend) 2608 usb_enable_autosuspend(data->udev); 2609 } 2610 2611 kfree_skb(skb); 2612 2613 return 0; 2614} 2615 2616static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2617{ 2618 struct sk_buff *skb; 2619 struct hci_event_hdr *hdr; 2620 struct hci_ev_cmd_complete *evt; 2621 2622 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2623 if (!skb) 2624 return -ENOMEM; 2625 2626 hdr = skb_put(skb, sizeof(*hdr)); 2627 hdr->evt = HCI_EV_CMD_COMPLETE; 2628 hdr->plen = sizeof(*evt) + 1; 2629 2630 evt = skb_put(skb, sizeof(*evt)); 2631 evt->ncmd = 0x01; 2632 evt->opcode = cpu_to_le16(opcode); 2633 2634 skb_put_u8(skb, 0x00); 2635 2636 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2637 2638 return hci_recv_frame(hdev, skb); 2639} 2640 2641static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2642 int count) 2643{ 2644 struct hci_dev *hdev = data->hdev; 2645 2646 /* When the device is in bootloader mode, then it can send 2647 * events via the bulk endpoint. These events are treated the 2648 * same way as the ones received from the interrupt endpoint. 2649 */ 2650 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2651 return btusb_recv_intr(data, buffer, count); 2652 2653 return btusb_recv_bulk(data, buffer, count); 2654} 2655 2656static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2657{ 2658 struct urb *urb; 2659 2660 BT_DBG("%s", hdev->name); 2661 2662 switch (hci_skb_pkt_type(skb)) { 2663 case HCI_COMMAND_PKT: 2664 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2665 struct hci_command_hdr *cmd = (void *)skb->data; 2666 __u16 opcode = le16_to_cpu(cmd->opcode); 2667 2668 /* When in bootloader mode and the command 0xfc09 2669 * is received, it needs to be send down the 2670 * bulk endpoint. So allocate a bulk URB instead. 2671 */ 2672 if (opcode == 0xfc09) 2673 urb = alloc_bulk_urb(hdev, skb); 2674 else 2675 urb = alloc_ctrl_urb(hdev, skb); 2676 2677 /* When the BTINTEL_HCI_OP_RESET command is issued to 2678 * boot into the operational firmware, it will actually 2679 * not send a command complete event. To keep the flow 2680 * control working inject that event here. 2681 */ 2682 if (opcode == BTINTEL_HCI_OP_RESET) 2683 inject_cmd_complete(hdev, opcode); 2684 } else { 2685 urb = alloc_ctrl_urb(hdev, skb); 2686 } 2687 if (IS_ERR(urb)) 2688 return PTR_ERR(urb); 2689 2690 hdev->stat.cmd_tx++; 2691 return submit_or_queue_tx_urb(hdev, urb); 2692 2693 case HCI_ACLDATA_PKT: 2694 urb = alloc_bulk_urb(hdev, skb); 2695 if (IS_ERR(urb)) 2696 return PTR_ERR(urb); 2697 2698 hdev->stat.acl_tx++; 2699 return submit_or_queue_tx_urb(hdev, urb); 2700 2701 case HCI_SCODATA_PKT: 2702 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2703 hci_conn_num(hdev, SCO_LINK) < 1) 2704 return -ENODEV; 2705 2706 urb = alloc_isoc_urb(hdev, skb); 2707 if (IS_ERR(urb)) 2708 return PTR_ERR(urb); 2709 2710 hdev->stat.sco_tx++; 2711 return submit_tx_urb(hdev, urb); 2712 2713 case HCI_ISODATA_PKT: 2714 urb = alloc_bulk_urb(hdev, skb); 2715 if (IS_ERR(urb)) 2716 return PTR_ERR(urb); 2717 2718 return submit_or_queue_tx_urb(hdev, urb); 2719 } 2720 2721 return -EILSEQ; 2722} 2723 2724static int btusb_setup_realtek(struct hci_dev *hdev) 2725{ 2726 struct btusb_data *data = hci_get_drvdata(hdev); 2727 int ret; 2728 2729 ret = btrtl_setup_realtek(hdev); 2730 2731 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2732 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2733 2734 return ret; 2735} 2736 2737static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2738{ 2739 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2740 struct rtk_dev_coredump_hdr hdr = { 2741 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2742 }; 2743 2744 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2745 skb->len); 2746 2747 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2748 kfree_skb(skb); 2749 2750 return 0; 2751 } 2752 2753 return hci_recv_frame(hdev, skb); 2754} 2755 2756static void btusb_mtk_claim_iso_intf(struct btusb_data *data) 2757{ 2758 struct btmtk_data *btmtk_data; 2759 int err; 2760 2761 if (!data->hdev) 2762 return; 2763 2764 btmtk_data = hci_get_priv(data->hdev); 2765 if (!btmtk_data) 2766 return; 2767 2768 if (!btmtk_data->isopkt_intf) { 2769 bt_dev_err(data->hdev, "Can't claim NULL iso interface"); 2770 return; 2771 } 2772 2773 /* 2774 * The function usb_driver_claim_interface() is documented to need 2775 * locks held if it's not called from a probe routine. The code here 2776 * is called from the hci_power_on workqueue, so grab the lock. 2777 */ 2778 device_lock(&btmtk_data->isopkt_intf->dev); 2779 err = usb_driver_claim_interface(&btusb_driver, 2780 btmtk_data->isopkt_intf, data); 2781 device_unlock(&btmtk_data->isopkt_intf->dev); 2782 if (err < 0) { 2783 btmtk_data->isopkt_intf = NULL; 2784 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err); 2785 return; 2786 } 2787 2788 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2789 init_usb_anchor(&btmtk_data->isopkt_anchor); 2790} 2791 2792static void btusb_mtk_release_iso_intf(struct hci_dev *hdev) 2793{ 2794 struct btmtk_data *btmtk_data; 2795 2796 if (!hdev) 2797 return; 2798 2799 btmtk_data = hci_get_priv(hdev); 2800 if (!btmtk_data) 2801 return; 2802 2803 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2804 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); 2805 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); 2806 2807 if (btmtk_data->isopkt_skb) { 2808 dev_kfree_skb_irq(btmtk_data->isopkt_skb); 2809 btmtk_data->isopkt_skb = NULL; 2810 } 2811 2812 if (btmtk_data->isopkt_intf) { 2813 usb_set_intfdata(btmtk_data->isopkt_intf, NULL); 2814 usb_driver_release_interface(&btusb_driver, 2815 btmtk_data->isopkt_intf); 2816 btmtk_data->isopkt_intf = NULL; 2817 } 2818 } 2819 2820 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2821} 2822 2823static int btusb_mtk_disconnect(struct hci_dev *hdev) 2824{ 2825 /* This function describes the specific additional steps taken by MediaTek 2826 * when Bluetooth usb driver's resume function is called. 2827 */ 2828 btusb_mtk_release_iso_intf(hdev); 2829 2830 return 0; 2831} 2832 2833static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2834{ 2835 struct btusb_data *data = hci_get_drvdata(hdev); 2836 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2837 int err; 2838 2839 /* It's MediaTek specific bluetooth reset mechanism via USB */ 2840 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) { 2841 bt_dev_err(hdev, "last reset failed? Not resetting again"); 2842 return -EBUSY; 2843 } 2844 2845 err = usb_autopm_get_interface(data->intf); 2846 if (err < 0) 2847 return err; 2848 2849 /* Release MediaTek ISO data interface */ 2850 btusb_mtk_release_iso_intf(hdev); 2851 2852 btusb_stop_traffic(data); 2853 usb_kill_anchored_urbs(&data->tx_anchor); 2854 2855 /* Toggle the hard reset line. The MediaTek device is going to 2856 * yank itself off the USB and then replug. The cleanup is handled 2857 * correctly on the way out (standard USB disconnect), and the new 2858 * device is detected cleanly and bound to the driver again like 2859 * it should be. 2860 */ 2861 if (data->reset_gpio) { 2862 gpiod_set_value_cansleep(data->reset_gpio, 1); 2863 msleep(200); 2864 gpiod_set_value_cansleep(data->reset_gpio, 0); 2865 return 0; 2866 } 2867 2868 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); 2869 2870 usb_queue_reset_device(data->intf); 2871 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 2872 2873 return err; 2874} 2875 2876static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb) 2877{ 2878 struct urb *urb; 2879 2880 BT_DBG("%s", hdev->name); 2881 2882 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) { 2883 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); 2884 if (IS_ERR(urb)) 2885 return PTR_ERR(urb); 2886 2887 return submit_or_queue_tx_urb(hdev, urb); 2888 } else { 2889 return btusb_send_frame(hdev, skb); 2890 } 2891} 2892 2893static int btusb_mtk_setup(struct hci_dev *hdev) 2894{ 2895 struct btusb_data *data = hci_get_drvdata(hdev); 2896 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2897 2898 /* MediaTek WMT vendor cmd requiring below USB resources to 2899 * complete the handshake. 2900 */ 2901 btmtk_data->drv_name = btusb_driver.name; 2902 btmtk_data->intf = data->intf; 2903 btmtk_data->udev = data->udev; 2904 btmtk_data->ctrl_anchor = &data->ctrl_anchor; 2905 btmtk_data->reset_sync = btusb_mtk_reset; 2906 2907 /* Claim ISO data interface and endpoint */ 2908 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2909 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); 2910 btusb_mtk_claim_iso_intf(data); 2911 } 2912 2913 return btmtk_usb_setup(hdev); 2914} 2915 2916static int btusb_mtk_shutdown(struct hci_dev *hdev) 2917{ 2918 int ret; 2919 2920 ret = btmtk_usb_shutdown(hdev); 2921 2922 /* Release MediaTek iso interface after shutdown */ 2923 btusb_mtk_release_iso_intf(hdev); 2924 2925 return ret; 2926} 2927 2928#ifdef CONFIG_PM 2929/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2930static int marvell_config_oob_wake(struct hci_dev *hdev) 2931{ 2932 struct sk_buff *skb; 2933 struct btusb_data *data = hci_get_drvdata(hdev); 2934 struct device *dev = &data->udev->dev; 2935 u16 pin, gap, opcode; 2936 int ret; 2937 u8 cmd[5]; 2938 2939 /* Move on if no wakeup pin specified */ 2940 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2941 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2942 return 0; 2943 2944 /* Vendor specific command to configure a GPIO as wake-up pin */ 2945 opcode = hci_opcode_pack(0x3F, 0x59); 2946 cmd[0] = opcode & 0xFF; 2947 cmd[1] = opcode >> 8; 2948 cmd[2] = 2; /* length of parameters that follow */ 2949 cmd[3] = pin; 2950 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2951 2952 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2953 if (!skb) { 2954 bt_dev_err(hdev, "%s: No memory", __func__); 2955 return -ENOMEM; 2956 } 2957 2958 skb_put_data(skb, cmd, sizeof(cmd)); 2959 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2960 2961 ret = btusb_send_frame(hdev, skb); 2962 if (ret) { 2963 bt_dev_err(hdev, "%s: configuration failed", __func__); 2964 kfree_skb(skb); 2965 return ret; 2966 } 2967 2968 return 0; 2969} 2970#endif 2971 2972static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2973 const bdaddr_t *bdaddr) 2974{ 2975 struct sk_buff *skb; 2976 u8 buf[8]; 2977 long ret; 2978 2979 buf[0] = 0xfe; 2980 buf[1] = sizeof(bdaddr_t); 2981 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2982 2983 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2984 if (IS_ERR(skb)) { 2985 ret = PTR_ERR(skb); 2986 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2987 ret); 2988 return ret; 2989 } 2990 kfree_skb(skb); 2991 2992 return 0; 2993} 2994 2995static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2996 const bdaddr_t *bdaddr) 2997{ 2998 struct sk_buff *skb; 2999 u8 buf[10]; 3000 long ret; 3001 3002 buf[0] = 0x01; 3003 buf[1] = 0x01; 3004 buf[2] = 0x00; 3005 buf[3] = sizeof(bdaddr_t); 3006 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3007 3008 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3009 if (IS_ERR(skb)) { 3010 ret = PTR_ERR(skb); 3011 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3012 return ret; 3013 } 3014 kfree_skb(skb); 3015 3016 return 0; 3017} 3018 3019static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3020 const bdaddr_t *bdaddr) 3021{ 3022 struct sk_buff *skb; 3023 u8 buf[6]; 3024 long ret; 3025 3026 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3027 3028 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3029 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3030 if (IS_ERR(skb)) { 3031 ret = PTR_ERR(skb); 3032 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3033 return ret; 3034 } 3035 kfree_skb(skb); 3036 3037 return 0; 3038} 3039 3040#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3041#define QCA_MEMDUMP_SIZE_MAX 0x100000 3042#define QCA_MEMDUMP_VSE_CLASS 0x01 3043#define QCA_MEMDUMP_MSG_TYPE 0x08 3044#define QCA_MEMDUMP_PKT_SIZE 248 3045#define QCA_LAST_SEQUENCE_NUM 0xffff 3046 3047struct qca_dump_hdr { 3048 u8 vse_class; 3049 u8 msg_type; 3050 __le16 seqno; 3051 u8 reserved; 3052 union { 3053 u8 data[0]; 3054 struct { 3055 __le32 ram_dump_size; 3056 u8 data0[0]; 3057 } __packed; 3058 }; 3059} __packed; 3060 3061 3062static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3063{ 3064 char buf[128]; 3065 struct btusb_data *btdata = hci_get_drvdata(hdev); 3066 3067 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3068 btdata->qca_dump.controller_id); 3069 skb_put_data(skb, buf, strlen(buf)); 3070 3071 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3072 btdata->qca_dump.fw_version); 3073 skb_put_data(skb, buf, strlen(buf)); 3074 3075 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3076 btusb_driver.name); 3077 skb_put_data(skb, buf, strlen(buf)); 3078 3079 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3080 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3081 skb_put_data(skb, buf, strlen(buf)); 3082 3083 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3084 hdev->lmp_subver); 3085 skb_put_data(skb, buf, strlen(buf)); 3086} 3087 3088static void btusb_coredump_qca(struct hci_dev *hdev) 3089{ 3090 int err; 3091 static const u8 param[] = { 0x26 }; 3092 3093 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3094 if (err < 0) 3095 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3096} 3097 3098/* Return: 0 on success, negative errno on failure. */ 3099static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3100{ 3101 int ret = 0; 3102 unsigned int skip = 0; 3103 u8 pkt_type; 3104 u16 seqno; 3105 u32 dump_size; 3106 3107 struct qca_dump_hdr *dump_hdr; 3108 struct btusb_data *btdata = hci_get_drvdata(hdev); 3109 struct usb_device *udev = btdata->udev; 3110 3111 pkt_type = hci_skb_pkt_type(skb); 3112 skip = sizeof(struct hci_event_hdr); 3113 if (pkt_type == HCI_ACLDATA_PKT) 3114 skip += sizeof(struct hci_acl_hdr); 3115 3116 skb_pull(skb, skip); 3117 dump_hdr = (struct qca_dump_hdr *)skb->data; 3118 3119 seqno = le16_to_cpu(dump_hdr->seqno); 3120 if (seqno == 0) { 3121 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3122 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3123 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3124 ret = -EILSEQ; 3125 bt_dev_err(hdev, "Invalid memdump size(%u)", 3126 dump_size); 3127 goto out; 3128 } 3129 3130 ret = hci_devcd_init(hdev, dump_size); 3131 if (ret < 0) { 3132 bt_dev_err(hdev, "memdump init error(%d)", ret); 3133 goto out; 3134 } 3135 3136 btdata->qca_dump.ram_dump_size = dump_size; 3137 btdata->qca_dump.ram_dump_seqno = 0; 3138 3139 skb_pull(skb, offsetof(struct qca_dump_hdr, data0)); 3140 3141 usb_disable_autosuspend(udev); 3142 bt_dev_info(hdev, "%s memdump size(%u)\n", 3143 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3144 dump_size); 3145 } else { 3146 skb_pull(skb, offsetof(struct qca_dump_hdr, data)); 3147 } 3148 3149 if (!btdata->qca_dump.ram_dump_size) { 3150 ret = -EINVAL; 3151 bt_dev_err(hdev, "memdump is not active"); 3152 goto out; 3153 } 3154 3155 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3156 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3157 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3158 bt_dev_err(hdev, 3159 "expected memdump seqno(%u) is not received(%u)\n", 3160 btdata->qca_dump.ram_dump_seqno, seqno); 3161 btdata->qca_dump.ram_dump_seqno = seqno; 3162 kfree_skb(skb); 3163 return ret; 3164 } 3165 3166 hci_devcd_append(hdev, skb); 3167 btdata->qca_dump.ram_dump_seqno++; 3168 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3169 bt_dev_info(hdev, 3170 "memdump done: pkts(%u), total(%u)\n", 3171 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3172 3173 hci_devcd_complete(hdev); 3174 goto out; 3175 } 3176 return ret; 3177 3178out: 3179 if (btdata->qca_dump.ram_dump_size) 3180 usb_enable_autosuspend(udev); 3181 btdata->qca_dump.ram_dump_size = 0; 3182 btdata->qca_dump.ram_dump_seqno = 0; 3183 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3184 3185 if (ret < 0) 3186 kfree_skb(skb); 3187 return ret; 3188} 3189 3190/* Return: true if the ACL packet is a dump packet, false otherwise. */ 3191static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3192{ 3193 struct hci_event_hdr *event_hdr; 3194 struct hci_acl_hdr *acl_hdr; 3195 struct qca_dump_hdr *dump_hdr; 3196 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3197 bool is_dump = false; 3198 3199 if (!clone) 3200 return false; 3201 3202 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr)); 3203 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)) 3204 goto out; 3205 3206 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3207 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT)) 3208 goto out; 3209 3210 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3211 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3212 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3213 goto out; 3214 3215 is_dump = true; 3216out: 3217 consume_skb(clone); 3218 return is_dump; 3219} 3220 3221/* Return: true if the event packet is a dump packet, false otherwise. */ 3222static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3223{ 3224 struct hci_event_hdr *event_hdr; 3225 struct qca_dump_hdr *dump_hdr; 3226 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3227 bool is_dump = false; 3228 3229 if (!clone) 3230 return false; 3231 3232 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3233 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT)) 3234 goto out; 3235 3236 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3237 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3238 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3239 goto out; 3240 3241 is_dump = true; 3242out: 3243 consume_skb(clone); 3244 return is_dump; 3245} 3246 3247static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3248{ 3249 if (acl_pkt_is_dump_qca(hdev, skb)) 3250 return handle_dump_pkt_qca(hdev, skb); 3251 return hci_recv_frame(hdev, skb); 3252} 3253 3254static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3255{ 3256 if (evt_pkt_is_dump_qca(hdev, skb)) 3257 return handle_dump_pkt_qca(hdev, skb); 3258 return hci_recv_frame(hdev, skb); 3259} 3260 3261 3262#define QCA_DFU_PACKET_LEN 4096 3263 3264#define QCA_GET_TARGET_VERSION 0x09 3265#define QCA_CHECK_STATUS 0x05 3266#define QCA_DFU_DOWNLOAD 0x01 3267 3268#define QCA_SYSCFG_UPDATED 0x40 3269#define QCA_PATCH_UPDATED 0x80 3270#define QCA_DFU_TIMEOUT 3000 3271#define QCA_FLAG_MULTI_NVM 0x80 3272#define QCA_BT_RESET_WAIT_MS 100 3273 3274#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3275#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3276 3277struct qca_version { 3278 __le32 rom_version; 3279 __le32 patch_version; 3280 __le32 ram_version; 3281 __u8 chip_id; 3282 __u8 platform_id; 3283 __le16 flag; 3284 __u8 reserved[4]; 3285} __packed; 3286 3287struct qca_rampatch_version { 3288 __le16 rom_version_high; 3289 __le16 rom_version_low; 3290 __le16 patch_version; 3291} __packed; 3292 3293struct qca_device_info { 3294 u32 rom_version; 3295 u8 rampatch_hdr; /* length of header in rampatch */ 3296 u8 nvm_hdr; /* length of header in NVM */ 3297 u8 ver_offset; /* offset of version structure in rampatch */ 3298}; 3299 3300struct qca_custom_firmware { 3301 u32 rom_version; 3302 u16 board_id; 3303 const char *subdirectory; 3304}; 3305 3306static const struct qca_device_info qca_devices_table[] = { 3307 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3308 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3309 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3310 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3311 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3312 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3313 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3314 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3315 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3316 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3317}; 3318 3319static const struct qca_custom_firmware qca_custom_btfws[] = { 3320 { 0x00130201, 0x030A, "QCA2066" }, 3321 { 0x00130201, 0x030B, "QCA2066" }, 3322 { }, 3323}; 3324 3325static u16 qca_extract_board_id(const struct qca_version *ver) 3326{ 3327 u16 flag = le16_to_cpu(ver->flag); 3328 u16 board_id = 0; 3329 3330 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3331 /* The board_id should be split into two bytes 3332 * The 1st byte is chip ID, and the 2nd byte is platform ID 3333 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3334 * we have several platforms, and platform IDs are continuously added 3335 * Platform ID: 3336 * 0x00 is for Mobile 3337 * 0x01 is for X86 3338 * 0x02 is for Automotive 3339 * 0x03 is for Consumer electronic 3340 */ 3341 board_id = (ver->chip_id << 8) + ver->platform_id; 3342 } 3343 3344 /* Take 0xffff as invalid board ID */ 3345 if (board_id == 0xffff) 3346 board_id = 0; 3347 3348 return board_id; 3349} 3350 3351static const char *qca_get_fw_subdirectory(const struct qca_version *ver) 3352{ 3353 const struct qca_custom_firmware *ptr; 3354 u32 rom_ver; 3355 u16 board_id; 3356 3357 rom_ver = le32_to_cpu(ver->rom_version); 3358 board_id = qca_extract_board_id(ver); 3359 if (!board_id) 3360 return NULL; 3361 3362 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) { 3363 if (ptr->rom_version == rom_ver && 3364 ptr->board_id == board_id) 3365 return ptr->subdirectory; 3366 } 3367 3368 return NULL; 3369} 3370 3371static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3372 void *data, u16 size) 3373{ 3374 int pipe, err; 3375 u8 *buf; 3376 3377 buf = kmalloc(size, GFP_KERNEL); 3378 if (!buf) 3379 return -ENOMEM; 3380 3381 /* Found some of USB hosts have IOT issues with ours so that we should 3382 * not wait until HCI layer is ready. 3383 */ 3384 pipe = usb_rcvctrlpipe(udev, 0); 3385 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3386 0, 0, buf, size, USB_CTRL_GET_TIMEOUT); 3387 if (err < 0) { 3388 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3389 goto done; 3390 } 3391 3392 memcpy(data, buf, size); 3393 3394done: 3395 kfree(buf); 3396 3397 return err; 3398} 3399 3400static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3401 const struct firmware *firmware, 3402 size_t hdr_size) 3403{ 3404 struct btusb_data *btdata = hci_get_drvdata(hdev); 3405 struct usb_device *udev = btdata->udev; 3406 size_t count, size, sent = 0; 3407 int pipe, len, err; 3408 u8 *buf; 3409 3410 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3411 if (!buf) 3412 return -ENOMEM; 3413 3414 count = firmware->size; 3415 3416 size = min_t(size_t, count, hdr_size); 3417 memcpy(buf, firmware->data, size); 3418 3419 /* USB patches should go down to controller through USB path 3420 * because binary format fits to go down through USB channel. 3421 * USB control path is for patching headers and USB bulk is for 3422 * patch body. 3423 */ 3424 pipe = usb_sndctrlpipe(udev, 0); 3425 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3426 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3427 if (err < 0) { 3428 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3429 goto done; 3430 } 3431 3432 sent += size; 3433 count -= size; 3434 3435 /* ep2 need time to switch from function acl to function dfu, 3436 * so we add 20ms delay here. 3437 */ 3438 msleep(20); 3439 3440 while (count) { 3441 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3442 3443 memcpy(buf, firmware->data + sent, size); 3444 3445 pipe = usb_sndbulkpipe(udev, 0x02); 3446 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3447 QCA_DFU_TIMEOUT); 3448 if (err < 0) { 3449 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3450 sent, firmware->size, err); 3451 break; 3452 } 3453 3454 if (size != len) { 3455 bt_dev_err(hdev, "Failed to get bulk buffer"); 3456 err = -EILSEQ; 3457 break; 3458 } 3459 3460 sent += size; 3461 count -= size; 3462 } 3463 3464done: 3465 kfree(buf); 3466 return err; 3467} 3468 3469static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3470 struct qca_version *ver, 3471 const struct qca_device_info *info) 3472{ 3473 struct qca_rampatch_version *rver; 3474 const struct firmware *fw; 3475 const char *fw_subdir; 3476 u32 ver_rom, ver_patch, rver_rom; 3477 u16 rver_rom_low, rver_rom_high, rver_patch; 3478 char fwname[80]; 3479 int err; 3480 3481 ver_rom = le32_to_cpu(ver->rom_version); 3482 ver_patch = le32_to_cpu(ver->patch_version); 3483 3484 fw_subdir = qca_get_fw_subdirectory(ver); 3485 if (fw_subdir) 3486 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin", 3487 fw_subdir, ver_rom); 3488 else 3489 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", 3490 ver_rom); 3491 3492 err = request_firmware(&fw, fwname, &hdev->dev); 3493 if (err) { 3494 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3495 fwname, err); 3496 return err; 3497 } 3498 3499 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3500 3501 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3502 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3503 rver_patch = le16_to_cpu(rver->patch_version); 3504 3505 if (ver_rom & ~0xffffU) { 3506 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3507 rver_rom = rver_rom_high << 16 | rver_rom_low; 3508 } else { 3509 rver_rom = rver_rom_low; 3510 } 3511 3512 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3513 "firmware rome 0x%x build 0x%x", 3514 rver_rom, rver_patch, ver_rom, ver_patch); 3515 3516 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3517 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3518 err = -EINVAL; 3519 goto done; 3520 } 3521 3522 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3523 3524done: 3525 release_firmware(fw); 3526 3527 return err; 3528} 3529 3530static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3531 const struct qca_version *ver) 3532{ 3533 u32 rom_version = le32_to_cpu(ver->rom_version); 3534 const char *variant, *fw_subdir; 3535 int len; 3536 u16 board_id; 3537 3538 fw_subdir = qca_get_fw_subdirectory(ver); 3539 board_id = qca_extract_board_id(ver); 3540 3541 switch (le32_to_cpu(ver->ram_version)) { 3542 case WCN6855_2_0_RAM_VERSION_GF: 3543 case WCN6855_2_1_RAM_VERSION_GF: 3544 variant = "_gf"; 3545 break; 3546 default: 3547 variant = NULL; 3548 break; 3549 } 3550 3551 if (fw_subdir) 3552 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x", 3553 fw_subdir, rom_version); 3554 else 3555 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x", 3556 rom_version); 3557 if (variant) 3558 len += snprintf(fwname + len, max_size - len, "%s", variant); 3559 if (board_id) 3560 len += snprintf(fwname + len, max_size - len, "_%04x", board_id); 3561 len += snprintf(fwname + len, max_size - len, ".bin"); 3562} 3563 3564static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3565 struct qca_version *ver, 3566 const struct qca_device_info *info) 3567{ 3568 const struct firmware *fw; 3569 char fwname[80]; 3570 int err; 3571 3572 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3573 3574 err = request_firmware(&fw, fwname, &hdev->dev); 3575 if (err) { 3576 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3577 fwname, err); 3578 return err; 3579 } 3580 3581 bt_dev_info(hdev, "using NVM file: %s", fwname); 3582 3583 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3584 3585 release_firmware(fw); 3586 3587 return err; 3588} 3589 3590/* identify the ROM version and check whether patches are needed */ 3591static bool btusb_qca_need_patch(struct usb_device *udev) 3592{ 3593 struct qca_version ver; 3594 3595 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3596 sizeof(ver)) < 0) 3597 return false; 3598 /* only low ROM versions need patches */ 3599 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3600} 3601 3602static int btusb_setup_qca(struct hci_dev *hdev) 3603{ 3604 struct btusb_data *btdata = hci_get_drvdata(hdev); 3605 struct usb_device *udev = btdata->udev; 3606 const struct qca_device_info *info = NULL; 3607 struct qca_version ver; 3608 u32 ver_rom; 3609 u8 status; 3610 int i, err; 3611 3612 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3613 sizeof(ver)); 3614 if (err < 0) 3615 return err; 3616 3617 ver_rom = le32_to_cpu(ver.rom_version); 3618 3619 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3620 if (ver_rom == qca_devices_table[i].rom_version) 3621 info = &qca_devices_table[i]; 3622 } 3623 if (!info) { 3624 /* If the rom_version is not matched in the qca_devices_table 3625 * and the high ROM version is not zero, we assume this chip no 3626 * need to load the rampatch and nvm. 3627 */ 3628 if (ver_rom & ~0xffffU) 3629 return 0; 3630 3631 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3632 return -ENODEV; 3633 } 3634 3635 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3636 sizeof(status)); 3637 if (err < 0) 3638 return err; 3639 3640 if (!(status & QCA_PATCH_UPDATED)) { 3641 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3642 if (err < 0) 3643 return err; 3644 } 3645 3646 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3647 sizeof(ver)); 3648 if (err < 0) 3649 return err; 3650 3651 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3652 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3653 3654 if (!(status & QCA_SYSCFG_UPDATED)) { 3655 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3656 if (err < 0) 3657 return err; 3658 3659 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3660 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3661 * cause potential enable failure. 3662 */ 3663 if (info->rom_version >= 0x00130201) 3664 msleep(QCA_BT_RESET_WAIT_MS); 3665 } 3666 3667 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3668 * work with the likes of HSP/HFP mSBC. 3669 */ 3670 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 3671 3672 return 0; 3673} 3674 3675static inline int __set_diag_interface(struct hci_dev *hdev) 3676{ 3677 struct btusb_data *data = hci_get_drvdata(hdev); 3678 struct usb_interface *intf = data->diag; 3679 int i; 3680 3681 if (!data->diag) 3682 return -ENODEV; 3683 3684 data->diag_tx_ep = NULL; 3685 data->diag_rx_ep = NULL; 3686 3687 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3688 struct usb_endpoint_descriptor *ep_desc; 3689 3690 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3691 3692 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3693 data->diag_tx_ep = ep_desc; 3694 continue; 3695 } 3696 3697 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3698 data->diag_rx_ep = ep_desc; 3699 continue; 3700 } 3701 } 3702 3703 if (!data->diag_tx_ep || !data->diag_rx_ep) { 3704 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3705 return -ENODEV; 3706 } 3707 3708 return 0; 3709} 3710 3711static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3712{ 3713 struct btusb_data *data = hci_get_drvdata(hdev); 3714 struct sk_buff *skb; 3715 struct urb *urb; 3716 unsigned int pipe; 3717 3718 if (!data->diag_tx_ep) 3719 return ERR_PTR(-ENODEV); 3720 3721 urb = usb_alloc_urb(0, GFP_KERNEL); 3722 if (!urb) 3723 return ERR_PTR(-ENOMEM); 3724 3725 skb = bt_skb_alloc(2, GFP_KERNEL); 3726 if (!skb) { 3727 usb_free_urb(urb); 3728 return ERR_PTR(-ENOMEM); 3729 } 3730 3731 skb_put_u8(skb, 0xf0); 3732 skb_put_u8(skb, enable); 3733 3734 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 3735 3736 usb_fill_bulk_urb(urb, data->udev, pipe, 3737 skb->data, skb->len, btusb_tx_complete, skb); 3738 3739 skb->dev = (void *)hdev; 3740 3741 return urb; 3742} 3743 3744static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 3745{ 3746 struct btusb_data *data = hci_get_drvdata(hdev); 3747 struct urb *urb; 3748 3749 if (!data->diag) 3750 return -ENODEV; 3751 3752 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3753 return -ENETDOWN; 3754 3755 urb = alloc_diag_urb(hdev, enable); 3756 if (IS_ERR(urb)) 3757 return PTR_ERR(urb); 3758 3759 return submit_or_queue_tx_urb(hdev, urb); 3760} 3761 3762#ifdef CONFIG_PM 3763static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 3764{ 3765 struct btusb_data *data = priv; 3766 3767 pm_wakeup_event(&data->udev->dev, 0); 3768 pm_system_wakeup(); 3769 3770 /* Disable only if not already disabled (keep it balanced) */ 3771 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3772 disable_irq_nosync(irq); 3773 disable_irq_wake(irq); 3774 } 3775 return IRQ_HANDLED; 3776} 3777 3778static const struct of_device_id btusb_match_table[] = { 3779 { .compatible = "usb1286,204e" }, 3780 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 3781 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 3782 { } 3783}; 3784MODULE_DEVICE_TABLE(of, btusb_match_table); 3785 3786/* Use an oob wakeup pin? */ 3787static int btusb_config_oob_wake(struct hci_dev *hdev) 3788{ 3789 struct btusb_data *data = hci_get_drvdata(hdev); 3790 struct device *dev = &data->udev->dev; 3791 int irq, ret; 3792 3793 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3794 3795 if (!of_match_device(btusb_match_table, dev)) 3796 return 0; 3797 3798 /* Move on if no IRQ specified */ 3799 irq = of_irq_get_byname(dev->of_node, "wakeup"); 3800 if (irq <= 0) { 3801 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 3802 return 0; 3803 } 3804 3805 irq_set_status_flags(irq, IRQ_NOAUTOEN); 3806 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 3807 0, "OOB Wake-on-BT", data); 3808 if (ret) { 3809 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 3810 return ret; 3811 } 3812 3813 ret = device_init_wakeup(dev, true); 3814 if (ret) { 3815 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 3816 return ret; 3817 } 3818 3819 data->oob_wake_irq = irq; 3820 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 3821 return 0; 3822} 3823#endif 3824 3825static void btusb_check_needs_reset_resume(struct usb_interface *intf) 3826{ 3827 if (dmi_check_system(btusb_needs_reset_resume_table)) 3828 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3829} 3830 3831static bool btusb_wakeup(struct hci_dev *hdev) 3832{ 3833 struct btusb_data *data = hci_get_drvdata(hdev); 3834 3835 return device_may_wakeup(&data->udev->dev); 3836} 3837 3838static int btusb_shutdown_qca(struct hci_dev *hdev) 3839{ 3840 struct sk_buff *skb; 3841 3842 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 3843 if (IS_ERR(skb)) { 3844 bt_dev_err(hdev, "HCI reset during shutdown failed"); 3845 return PTR_ERR(skb); 3846 } 3847 kfree_skb(skb); 3848 3849 return 0; 3850} 3851 3852static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 3853 size_t count, loff_t *ppos) 3854{ 3855 struct btusb_data *data = file->private_data; 3856 char buf[3]; 3857 3858 buf[0] = data->poll_sync ? 'Y' : 'N'; 3859 buf[1] = '\n'; 3860 buf[2] = '\0'; 3861 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 3862} 3863 3864static ssize_t force_poll_sync_write(struct file *file, 3865 const char __user *user_buf, 3866 size_t count, loff_t *ppos) 3867{ 3868 struct btusb_data *data = file->private_data; 3869 bool enable; 3870 int err; 3871 3872 err = kstrtobool_from_user(user_buf, count, &enable); 3873 if (err) 3874 return err; 3875 3876 /* Only allow changes while the adapter is down */ 3877 if (test_bit(HCI_UP, &data->hdev->flags)) 3878 return -EPERM; 3879 3880 if (data->poll_sync == enable) 3881 return -EALREADY; 3882 3883 data->poll_sync = enable; 3884 3885 return count; 3886} 3887 3888static const struct file_operations force_poll_sync_fops = { 3889 .owner = THIS_MODULE, 3890 .open = simple_open, 3891 .read = force_poll_sync_read, 3892 .write = force_poll_sync_write, 3893 .llseek = default_llseek, 3894}; 3895 3896#define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \ 3897 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000) 3898#define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0 3899struct btusb_hci_drv_rp_supported_altsettings { 3900 __u8 num; 3901 __u8 altsettings[]; 3902} __packed; 3903 3904#define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \ 3905 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001) 3906#define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1 3907struct btusb_hci_drv_cmd_switch_altsetting { 3908 __u8 altsetting; 3909} __packed; 3910 3911static const struct { 3912 u16 opcode; 3913 const char *desc; 3914} btusb_hci_drv_supported_commands[] = { 3915 /* Common commands */ 3916 { HCI_DRV_OP_READ_INFO, "Read Info" }, 3917 3918 /* Driver specific commands */ 3919 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" }, 3920 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" }, 3921}; 3922static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data, 3923 u16 data_len) 3924{ 3925 struct hci_drv_rp_read_info *rp; 3926 size_t rp_size; 3927 int err, i; 3928 u16 opcode, num_supported_commands = 3929 ARRAY_SIZE(btusb_hci_drv_supported_commands); 3930 3931 rp_size = sizeof(*rp) + num_supported_commands * 2; 3932 3933 rp = kmalloc(rp_size, GFP_KERNEL); 3934 if (!rp) 3935 return -ENOMEM; 3936 3937 strscpy_pad(rp->driver_name, btusb_driver.name); 3938 3939 rp->num_supported_commands = cpu_to_le16(num_supported_commands); 3940 for (i = 0; i < num_supported_commands; i++) { 3941 opcode = btusb_hci_drv_supported_commands[i].opcode; 3942 bt_dev_info(hdev, 3943 "Supported HCI Drv command (0x%02x|0x%04x): %s", 3944 hci_opcode_ogf(opcode), 3945 hci_opcode_ocf(opcode), 3946 btusb_hci_drv_supported_commands[i].desc); 3947 rp->supported_commands[i] = cpu_to_le16(opcode); 3948 } 3949 3950 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO, 3951 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 3952 3953 kfree(rp); 3954 return err; 3955} 3956 3957static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data, 3958 u16 data_len) 3959{ 3960 struct btusb_data *drvdata = hci_get_drvdata(hdev); 3961 struct btusb_hci_drv_rp_supported_altsettings *rp; 3962 size_t rp_size; 3963 int err; 3964 u8 i; 3965 3966 /* There are at most 7 alt (0 - 6) */ 3967 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL); 3968 if (!rp) 3969 return -ENOMEM; 3970 3971 rp->num = 0; 3972 if (!drvdata->isoc) 3973 goto done; 3974 3975 for (i = 0; i <= 6; i++) { 3976 if (btusb_find_altsetting(drvdata, i)) 3977 rp->altsettings[rp->num++] = i; 3978 } 3979 3980done: 3981 rp_size = sizeof(*rp) + rp->num; 3982 3983 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, 3984 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 3985 kfree(rp); 3986 return err; 3987} 3988 3989static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data, 3990 u16 data_len) 3991{ 3992 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data; 3993 u8 status; 3994 3995 if (cmd->altsetting > 6) { 3996 status = HCI_DRV_STATUS_INVALID_PARAMETERS; 3997 } else { 3998 if (btusb_switch_alt_setting(hdev, cmd->altsetting)) 3999 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR; 4000 else 4001 status = HCI_DRV_STATUS_SUCCESS; 4002 } 4003 4004 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, 4005 status); 4006} 4007 4008static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = { 4009 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE }, 4010}; 4011 4012static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = { 4013 { btusb_hci_drv_supported_altsettings, 4014 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE }, 4015 { btusb_hci_drv_switch_altsetting, 4016 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE }, 4017}; 4018 4019static struct hci_drv btusb_hci_drv = { 4020 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers), 4021 .common_handlers = btusb_hci_drv_common_handlers, 4022 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers), 4023 .specific_handlers = btusb_hci_drv_specific_handlers, 4024}; 4025 4026static int btusb_probe(struct usb_interface *intf, 4027 const struct usb_device_id *id) 4028{ 4029 struct usb_endpoint_descriptor *ep_desc; 4030 struct gpio_desc *reset_gpio; 4031 struct btusb_data *data; 4032 struct hci_dev *hdev; 4033 unsigned ifnum_base; 4034 int i, err, priv_size; 4035 4036 BT_DBG("intf %p id %p", intf, id); 4037 4038 if ((id->driver_info & BTUSB_IFNUM_2) && 4039 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4040 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4041 return -ENODEV; 4042 4043 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4044 4045 if (!id->driver_info) { 4046 const struct usb_device_id *match; 4047 4048 match = usb_match_id(intf, quirks_table); 4049 if (match) 4050 id = match; 4051 } 4052 4053 if (id->driver_info == BTUSB_IGNORE) 4054 return -ENODEV; 4055 4056 if (id->driver_info & BTUSB_ATH3012) { 4057 struct usb_device *udev = interface_to_usbdev(intf); 4058 4059 /* Old firmware would otherwise let ath3k driver load 4060 * patch and sysconfig files 4061 */ 4062 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4063 !btusb_qca_need_patch(udev)) 4064 return -ENODEV; 4065 } 4066 4067 data = kzalloc(sizeof(*data), GFP_KERNEL); 4068 if (!data) 4069 return -ENOMEM; 4070 4071 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4072 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4073 4074 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 4075 data->intr_ep = ep_desc; 4076 continue; 4077 } 4078 4079 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4080 data->bulk_tx_ep = ep_desc; 4081 continue; 4082 } 4083 4084 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4085 data->bulk_rx_ep = ep_desc; 4086 continue; 4087 } 4088 } 4089 4090 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { 4091 kfree(data); 4092 return -ENODEV; 4093 } 4094 4095 if (id->driver_info & BTUSB_AMP) { 4096 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4097 data->cmdreq = 0x2b; 4098 } else { 4099 data->cmdreq_type = USB_TYPE_CLASS; 4100 data->cmdreq = 0x00; 4101 } 4102 4103 data->udev = interface_to_usbdev(intf); 4104 data->intf = intf; 4105 4106 INIT_WORK(&data->work, btusb_work); 4107 INIT_WORK(&data->waker, btusb_waker); 4108 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4109 4110 skb_queue_head_init(&data->acl_q); 4111 4112 init_usb_anchor(&data->deferred); 4113 init_usb_anchor(&data->tx_anchor); 4114 spin_lock_init(&data->txlock); 4115 4116 init_usb_anchor(&data->intr_anchor); 4117 init_usb_anchor(&data->bulk_anchor); 4118 init_usb_anchor(&data->isoc_anchor); 4119 init_usb_anchor(&data->diag_anchor); 4120 init_usb_anchor(&data->ctrl_anchor); 4121 spin_lock_init(&data->rxlock); 4122 4123 priv_size = 0; 4124 4125 data->recv_event = hci_recv_frame; 4126 data->recv_bulk = btusb_recv_bulk; 4127 4128 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4129 /* Allocate extra space for Intel device */ 4130 priv_size += sizeof(struct btintel_data); 4131 4132 /* Override the rx handlers */ 4133 data->recv_event = btintel_recv_event; 4134 data->recv_bulk = btusb_recv_bulk_intel; 4135 } else if (id->driver_info & BTUSB_REALTEK) { 4136 /* Allocate extra space for Realtek device */ 4137 priv_size += sizeof(struct btrealtek_data); 4138 4139 data->recv_event = btusb_recv_event_realtek; 4140 } else if (id->driver_info & BTUSB_MEDIATEK) { 4141 /* Allocate extra space for Mediatek device */ 4142 priv_size += sizeof(struct btmtk_data); 4143 } 4144 4145 data->recv_acl = hci_recv_frame; 4146 4147 hdev = hci_alloc_dev_priv(priv_size); 4148 if (!hdev) { 4149 kfree(data); 4150 return -ENOMEM; 4151 } 4152 4153 hdev->bus = HCI_USB; 4154 hci_set_drvdata(hdev, data); 4155 4156 data->hdev = hdev; 4157 4158 SET_HCIDEV_DEV(hdev, &intf->dev); 4159 4160 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4161 GPIOD_OUT_LOW); 4162 if (IS_ERR(reset_gpio)) { 4163 err = PTR_ERR(reset_gpio); 4164 goto out_free_dev; 4165 } else if (reset_gpio) { 4166 data->reset_gpio = reset_gpio; 4167 } 4168 4169 hdev->open = btusb_open; 4170 hdev->close = btusb_close; 4171 hdev->flush = btusb_flush; 4172 hdev->send = btusb_send_frame; 4173 hdev->notify = btusb_notify; 4174 hdev->wakeup = btusb_wakeup; 4175 hdev->hci_drv = &btusb_hci_drv; 4176 4177#ifdef CONFIG_PM 4178 err = btusb_config_oob_wake(hdev); 4179 if (err) 4180 goto out_free_dev; 4181 4182 /* Marvell devices may need a specific chip configuration */ 4183 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4184 err = marvell_config_oob_wake(hdev); 4185 if (err) 4186 goto out_free_dev; 4187 } 4188#endif 4189 if (id->driver_info & BTUSB_CW6622) 4190 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4191 4192 if (id->driver_info & BTUSB_BCM2045) 4193 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4194 4195 if (id->driver_info & BTUSB_BCM92035) 4196 hdev->setup = btusb_setup_bcm92035; 4197 4198 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4199 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4200 hdev->manufacturer = 15; 4201 hdev->setup = btbcm_setup_patchram; 4202 hdev->set_diag = btusb_bcm_set_diag; 4203 hdev->set_bdaddr = btbcm_set_bdaddr; 4204 4205 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4206 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4207 } 4208 4209 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4210 (id->driver_info & BTUSB_BCM_APPLE)) { 4211 hdev->manufacturer = 15; 4212 hdev->setup = btbcm_setup_apple; 4213 hdev->set_diag = btusb_bcm_set_diag; 4214 4215 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4216 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4217 } 4218 4219 /* Combined Intel Device setup to support multiple setup routine */ 4220 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4221 err = btintel_configure_setup(hdev, btusb_driver.name); 4222 if (err) 4223 goto out_free_dev; 4224 4225 /* Transport specific configuration */ 4226 hdev->send = btusb_send_frame_intel; 4227 hdev->reset = btusb_intel_reset; 4228 4229 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4230 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4231 4232 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4233 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4234 4235 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4236 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4237 } 4238 4239 if (id->driver_info & BTUSB_MARVELL) 4240 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4241 4242 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4243 (id->driver_info & BTUSB_MEDIATEK)) { 4244 hdev->setup = btusb_mtk_setup; 4245 hdev->shutdown = btusb_mtk_shutdown; 4246 hdev->manufacturer = 70; 4247 hdev->reset = btmtk_reset_sync; 4248 hdev->set_bdaddr = btmtk_set_bdaddr; 4249 hdev->send = btusb_send_frame_mtk; 4250 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 4251 hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP); 4252 data->recv_acl = btmtk_usb_recv_acl; 4253 data->suspend = btmtk_usb_suspend; 4254 data->resume = btmtk_usb_resume; 4255 data->disconnect = btusb_mtk_disconnect; 4256 } 4257 4258 if (id->driver_info & BTUSB_SWAVE) { 4259 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE); 4260 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS); 4261 } 4262 4263 if (id->driver_info & BTUSB_INTEL_BOOT) { 4264 hdev->manufacturer = 2; 4265 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4266 } 4267 4268 if (id->driver_info & BTUSB_ATH3012) { 4269 data->setup_on_usb = btusb_setup_qca; 4270 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4271 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4272 hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER); 4273 } 4274 4275 if (id->driver_info & BTUSB_QCA_ROME) { 4276 data->setup_on_usb = btusb_setup_qca; 4277 hdev->shutdown = btusb_shutdown_qca; 4278 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4279 hdev->reset = btusb_qca_reset; 4280 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4281 btusb_check_needs_reset_resume(intf); 4282 } 4283 4284 if (id->driver_info & BTUSB_QCA_WCN6855) { 4285 data->qca_dump.id_vendor = id->idVendor; 4286 data->qca_dump.id_product = id->idProduct; 4287 data->recv_event = btusb_recv_evt_qca; 4288 data->recv_acl = btusb_recv_acl_qca; 4289 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4290 data->setup_on_usb = btusb_setup_qca; 4291 hdev->classify_pkt_type = btusb_classify_qca_pkt_type; 4292 hdev->shutdown = btusb_shutdown_qca; 4293 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4294 hdev->reset = btusb_qca_reset; 4295 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4296 hci_set_msft_opcode(hdev, 0xFD70); 4297 } 4298 4299 if (id->driver_info & BTUSB_AMP) { 4300 /* AMP controllers do not support SCO packets */ 4301 data->isoc = NULL; 4302 } else { 4303 /* Interface orders are hardcoded in the specification */ 4304 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4305 data->isoc_ifnum = ifnum_base + 1; 4306 } 4307 4308 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4309 (id->driver_info & BTUSB_REALTEK)) { 4310 btrtl_set_driver_name(hdev, btusb_driver.name); 4311 hdev->setup = btusb_setup_realtek; 4312 hdev->shutdown = btrtl_shutdown_realtek; 4313 hdev->reset = btusb_rtl_reset; 4314 hdev->hw_error = btusb_rtl_hw_error; 4315 4316 /* Realtek devices need to set remote wakeup on auto-suspend */ 4317 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4318 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4319 } 4320 4321 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4322 /* Support is advertised, but not implemented */ 4323 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 4324 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER); 4325 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT); 4326 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN); 4327 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE); 4328 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN); 4329 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT); 4330 } 4331 4332 if (!reset) 4333 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4334 4335 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4336 if (!disable_scofix) 4337 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE); 4338 } 4339 4340 if (id->driver_info & BTUSB_BROKEN_ISOC) 4341 data->isoc = NULL; 4342 4343 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4344 hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED); 4345 4346 if (id->driver_info & BTUSB_INVALID_LE_STATES) 4347 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES); 4348 4349 if (id->driver_info & BTUSB_DIGIANSWER) { 4350 data->cmdreq_type = USB_TYPE_VENDOR; 4351 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4352 } 4353 4354 if (id->driver_info & BTUSB_CSR) { 4355 struct usb_device *udev = data->udev; 4356 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4357 4358 /* Old firmware would otherwise execute USB reset */ 4359 if (bcdDevice < 0x117) 4360 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4361 4362 /* This must be set first in case we disable it for fakes */ 4363 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4364 4365 /* Fake CSR devices with broken commands */ 4366 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4367 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4368 hdev->setup = btusb_setup_csr; 4369 } 4370 4371 if (id->driver_info & BTUSB_SNIFFER) { 4372 struct usb_device *udev = data->udev; 4373 4374 /* New sniffer firmware has crippled HCI interface */ 4375 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4376 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4377 } 4378 4379 if (id->driver_info & BTUSB_INTEL_BOOT) { 4380 /* A bug in the bootloader causes that interrupt interface is 4381 * only enabled after receiving SetInterface(0, AltSetting=0). 4382 */ 4383 err = usb_set_interface(data->udev, 0, 0); 4384 if (err < 0) { 4385 BT_ERR("failed to set interface 0, alt 0 %d", err); 4386 goto out_free_dev; 4387 } 4388 } 4389 4390 if (data->isoc) { 4391 err = usb_driver_claim_interface(&btusb_driver, 4392 data->isoc, data); 4393 if (err < 0) 4394 goto out_free_dev; 4395 } 4396 4397 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4398 if (!usb_driver_claim_interface(&btusb_driver, 4399 data->diag, data)) 4400 __set_diag_interface(hdev); 4401 else 4402 data->diag = NULL; 4403 } 4404 4405 if (enable_autosuspend) 4406 usb_enable_autosuspend(data->udev); 4407 4408 data->poll_sync = enable_poll_sync; 4409 4410 err = hci_register_dev(hdev); 4411 if (err < 0) 4412 goto out_free_dev; 4413 4414 usb_set_intfdata(intf, data); 4415 4416 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4417 &force_poll_sync_fops); 4418 4419 return 0; 4420 4421out_free_dev: 4422 if (data->reset_gpio) 4423 gpiod_put(data->reset_gpio); 4424 hci_free_dev(hdev); 4425 kfree(data); 4426 return err; 4427} 4428 4429static void btusb_disconnect(struct usb_interface *intf) 4430{ 4431 struct btusb_data *data = usb_get_intfdata(intf); 4432 struct hci_dev *hdev; 4433 4434 BT_DBG("intf %p", intf); 4435 4436 if (!data) 4437 return; 4438 4439 hdev = data->hdev; 4440 usb_set_intfdata(data->intf, NULL); 4441 4442 if (data->isoc) 4443 usb_set_intfdata(data->isoc, NULL); 4444 4445 if (data->diag) 4446 usb_set_intfdata(data->diag, NULL); 4447 4448 if (data->disconnect) 4449 data->disconnect(hdev); 4450 4451 hci_unregister_dev(hdev); 4452 4453 if (data->oob_wake_irq) 4454 device_init_wakeup(&data->udev->dev, false); 4455 if (data->reset_gpio) 4456 gpiod_put(data->reset_gpio); 4457 4458 if (intf == data->intf) { 4459 if (data->isoc) 4460 usb_driver_release_interface(&btusb_driver, data->isoc); 4461 if (data->diag) 4462 usb_driver_release_interface(&btusb_driver, data->diag); 4463 } else if (intf == data->isoc) { 4464 if (data->diag) 4465 usb_driver_release_interface(&btusb_driver, data->diag); 4466 usb_driver_release_interface(&btusb_driver, data->intf); 4467 } else if (intf == data->diag) { 4468 if (data->isoc) 4469 usb_driver_release_interface(&btusb_driver, data->isoc); 4470 usb_driver_release_interface(&btusb_driver, data->intf); 4471 } 4472 4473 hci_free_dev(hdev); 4474 kfree(data); 4475} 4476 4477#ifdef CONFIG_PM 4478static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4479{ 4480 struct btusb_data *data = usb_get_intfdata(intf); 4481 4482 BT_DBG("intf %p", intf); 4483 4484 /* Don't auto-suspend if there are connections; external suspend calls 4485 * shall never fail. 4486 */ 4487 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev)) 4488 return -EBUSY; 4489 4490 if (data->suspend_count++) 4491 return 0; 4492 4493 spin_lock_irq(&data->txlock); 4494 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4495 set_bit(BTUSB_SUSPENDING, &data->flags); 4496 spin_unlock_irq(&data->txlock); 4497 } else { 4498 spin_unlock_irq(&data->txlock); 4499 data->suspend_count--; 4500 return -EBUSY; 4501 } 4502 4503 cancel_work_sync(&data->work); 4504 4505 if (data->suspend) 4506 data->suspend(data->hdev); 4507 4508 btusb_stop_traffic(data); 4509 usb_kill_anchored_urbs(&data->tx_anchor); 4510 4511 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4512 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4513 enable_irq_wake(data->oob_wake_irq); 4514 enable_irq(data->oob_wake_irq); 4515 } 4516 4517 /* For global suspend, Realtek devices lose the loaded fw 4518 * in them. But for autosuspend, firmware should remain. 4519 * Actually, it depends on whether the usb host sends 4520 * set feature (enable wakeup) or not. 4521 */ 4522 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4523 if (PMSG_IS_AUTO(message) && 4524 device_can_wakeup(&data->udev->dev)) 4525 data->udev->do_remote_wakeup = 1; 4526 else if (!PMSG_IS_AUTO(message) && 4527 !device_may_wakeup(&data->udev->dev)) { 4528 data->udev->do_remote_wakeup = 0; 4529 data->udev->reset_resume = 1; 4530 } 4531 } 4532 4533 return 0; 4534} 4535 4536static void play_deferred(struct btusb_data *data) 4537{ 4538 struct urb *urb; 4539 int err; 4540 4541 while ((urb = usb_get_from_anchor(&data->deferred))) { 4542 usb_anchor_urb(urb, &data->tx_anchor); 4543 4544 err = usb_submit_urb(urb, GFP_ATOMIC); 4545 if (err < 0) { 4546 if (err != -EPERM && err != -ENODEV) 4547 BT_ERR("%s urb %p submission failed (%d)", 4548 data->hdev->name, urb, -err); 4549 kfree(urb->setup_packet); 4550 usb_unanchor_urb(urb); 4551 usb_free_urb(urb); 4552 break; 4553 } 4554 4555 data->tx_in_flight++; 4556 usb_free_urb(urb); 4557 } 4558 4559 /* Cleanup the rest deferred urbs. */ 4560 while ((urb = usb_get_from_anchor(&data->deferred))) { 4561 kfree(urb->setup_packet); 4562 usb_free_urb(urb); 4563 } 4564} 4565 4566static int btusb_resume(struct usb_interface *intf) 4567{ 4568 struct btusb_data *data = usb_get_intfdata(intf); 4569 struct hci_dev *hdev = data->hdev; 4570 int err = 0; 4571 4572 BT_DBG("intf %p", intf); 4573 4574 if (--data->suspend_count) 4575 return 0; 4576 4577 /* Disable only if not already disabled (keep it balanced) */ 4578 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4579 disable_irq(data->oob_wake_irq); 4580 disable_irq_wake(data->oob_wake_irq); 4581 } 4582 4583 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4584 goto done; 4585 4586 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4587 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4588 if (err < 0) { 4589 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4590 goto failed; 4591 } 4592 } 4593 4594 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4595 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4596 if (err < 0) { 4597 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4598 goto failed; 4599 } 4600 4601 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4602 } 4603 4604 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4605 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4606 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4607 else 4608 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4609 } 4610 4611 if (data->resume) 4612 data->resume(hdev); 4613 4614 spin_lock_irq(&data->txlock); 4615 play_deferred(data); 4616 clear_bit(BTUSB_SUSPENDING, &data->flags); 4617 spin_unlock_irq(&data->txlock); 4618 schedule_work(&data->work); 4619 4620 return 0; 4621 4622failed: 4623 usb_scuttle_anchored_urbs(&data->deferred); 4624done: 4625 spin_lock_irq(&data->txlock); 4626 clear_bit(BTUSB_SUSPENDING, &data->flags); 4627 spin_unlock_irq(&data->txlock); 4628 4629 return err; 4630} 4631#endif 4632 4633#ifdef CONFIG_DEV_COREDUMP 4634static void btusb_coredump(struct device *dev) 4635{ 4636 struct btusb_data *data = dev_get_drvdata(dev); 4637 struct hci_dev *hdev = data->hdev; 4638 4639 if (hdev->dump.coredump) 4640 hdev->dump.coredump(hdev); 4641} 4642#endif 4643 4644static struct usb_driver btusb_driver = { 4645 .name = "btusb", 4646 .probe = btusb_probe, 4647 .disconnect = btusb_disconnect, 4648#ifdef CONFIG_PM 4649 .suspend = btusb_suspend, 4650 .resume = btusb_resume, 4651#endif 4652 .id_table = btusb_table, 4653 .supports_autosuspend = 1, 4654 .disable_hub_initiated_lpm = 1, 4655 4656#ifdef CONFIG_DEV_COREDUMP 4657 .driver = { 4658 .coredump = btusb_coredump, 4659 }, 4660#endif 4661}; 4662 4663module_usb_driver(btusb_driver); 4664 4665module_param(disable_scofix, bool, 0644); 4666MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4667 4668module_param(force_scofix, bool, 0644); 4669MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4670 4671module_param(enable_autosuspend, bool, 0644); 4672MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4673 4674module_param(reset, bool, 0644); 4675MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4676 4677MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4678MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4679MODULE_VERSION(VERSION); 4680MODULE_LICENSE("GPL");
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