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 <asm/unaligned.h> 21 22#include <net/bluetooth/bluetooth.h> 23#include <net/bluetooth/hci_core.h> 24 25#include "btintel.h" 26#include "btbcm.h" 27#include "btrtl.h" 28#include "btmtk.h" 29 30#define VERSION "0.8" 31 32static bool disable_scofix; 33static bool force_scofix; 34static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 35static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 36static bool reset = true; 37 38static struct usb_driver btusb_driver; 39 40#define BTUSB_IGNORE BIT(0) 41#define BTUSB_DIGIANSWER BIT(1) 42#define BTUSB_CSR BIT(2) 43#define BTUSB_SNIFFER BIT(3) 44#define BTUSB_BCM92035 BIT(4) 45#define BTUSB_BROKEN_ISOC BIT(5) 46#define BTUSB_WRONG_SCO_MTU BIT(6) 47#define BTUSB_ATH3012 BIT(7) 48#define BTUSB_INTEL_COMBINED BIT(8) 49#define BTUSB_INTEL_BOOT BIT(9) 50#define BTUSB_BCM_PATCHRAM BIT(10) 51#define BTUSB_MARVELL BIT(11) 52#define BTUSB_SWAVE BIT(12) 53#define BTUSB_AMP BIT(13) 54#define BTUSB_QCA_ROME BIT(14) 55#define BTUSB_BCM_APPLE BIT(15) 56#define BTUSB_REALTEK BIT(16) 57#define BTUSB_BCM2045 BIT(17) 58#define BTUSB_IFNUM_2 BIT(18) 59#define BTUSB_CW6622 BIT(19) 60#define BTUSB_MEDIATEK BIT(20) 61#define BTUSB_WIDEBAND_SPEECH BIT(21) 62#define BTUSB_VALID_LE_STATES BIT(22) 63#define BTUSB_QCA_WCN6855 BIT(23) 64#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 65#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 66#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 67#define BTUSB_ACTIONS_SEMI BIT(27) 68 69static const struct usb_device_id btusb_table[] = { 70 /* Generic Bluetooth USB device */ 71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 72 73 /* Generic Bluetooth AMP device */ 74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 75 76 /* Generic Bluetooth USB interface */ 77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 78 79 /* Apple-specific (Broadcom) devices */ 80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 82 83 /* MediaTek MT76x0E */ 84 { USB_DEVICE(0x0e8d, 0x763f) }, 85 86 /* Broadcom SoftSailing reporting vendor specific */ 87 { USB_DEVICE(0x0a5c, 0x21e1) }, 88 89 /* Apple MacBookPro 7,1 */ 90 { USB_DEVICE(0x05ac, 0x8213) }, 91 92 /* Apple iMac11,1 */ 93 { USB_DEVICE(0x05ac, 0x8215) }, 94 95 /* Apple MacBookPro6,2 */ 96 { USB_DEVICE(0x05ac, 0x8218) }, 97 98 /* Apple MacBookAir3,1, MacBookAir3,2 */ 99 { USB_DEVICE(0x05ac, 0x821b) }, 100 101 /* Apple MacBookAir4,1 */ 102 { USB_DEVICE(0x05ac, 0x821f) }, 103 104 /* Apple MacBookPro8,2 */ 105 { USB_DEVICE(0x05ac, 0x821a) }, 106 107 /* Apple MacMini5,1 */ 108 { USB_DEVICE(0x05ac, 0x8281) }, 109 110 /* AVM BlueFRITZ! USB v2.0 */ 111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 112 113 /* Bluetooth Ultraport Module from IBM */ 114 { USB_DEVICE(0x04bf, 0x030a) }, 115 116 /* ALPS Modules with non-standard id */ 117 { USB_DEVICE(0x044e, 0x3001) }, 118 { USB_DEVICE(0x044e, 0x3002) }, 119 120 /* Ericsson with non-standard id */ 121 { USB_DEVICE(0x0bdb, 0x1002) }, 122 123 /* Canyon CN-BTU1 with HID interfaces */ 124 { USB_DEVICE(0x0c10, 0x0000) }, 125 126 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 128 129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 131 .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* Broadcom BCM920703 (HTC Vive) */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Foxconn - Hon Hai */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Lite-On Technology - Broadcom based */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Broadcom devices with vendor specific id */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* ASUSTek Computer - Broadcom based */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* Belkin F8065bf - Broadcom based */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* IMC Networks - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* Dell Computer - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* Toshiba Corp - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Intel Bluetooth USB Bootloader (RAM module) */ 170 { USB_DEVICE(0x8087, 0x0a5a), 171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 172 173 { } /* Terminating entry */ 174}; 175 176MODULE_DEVICE_TABLE(usb, btusb_table); 177 178static const struct usb_device_id quirks_table[] = { 179 /* CSR BlueCore devices */ 180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 181 182 /* Broadcom BCM2033 without firmware */ 183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 184 185 /* Broadcom BCM2045 devices */ 186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 187 188 /* Atheros 3011 with sflash firmware */ 189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 196 197 /* Atheros AR9285 Malbec with sflash firmware */ 198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 199 200 /* Atheros 3012 with sflash firmware */ 201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 251 252 /* Atheros AR5BBU12 with sflash firmware */ 253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 254 255 /* Atheros AR5BBU12 with sflash firmware */ 256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 258 259 /* QCA ROME chipset */ 260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 261 BTUSB_WIDEBAND_SPEECH }, 262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 263 BTUSB_WIDEBAND_SPEECH }, 264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 265 BTUSB_WIDEBAND_SPEECH }, 266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 267 BTUSB_WIDEBAND_SPEECH }, 268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 269 BTUSB_WIDEBAND_SPEECH }, 270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 271 BTUSB_WIDEBAND_SPEECH }, 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 273 BTUSB_WIDEBAND_SPEECH }, 274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 275 BTUSB_WIDEBAND_SPEECH }, 276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 299 /* QCA WCN6855 chipset */ 300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 301 BTUSB_WIDEBAND_SPEECH | 302 BTUSB_VALID_LE_STATES }, 303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 304 BTUSB_WIDEBAND_SPEECH | 305 BTUSB_VALID_LE_STATES }, 306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 307 BTUSB_WIDEBAND_SPEECH | 308 BTUSB_VALID_LE_STATES }, 309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 310 BTUSB_WIDEBAND_SPEECH | 311 BTUSB_VALID_LE_STATES }, 312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 313 BTUSB_WIDEBAND_SPEECH | 314 BTUSB_VALID_LE_STATES }, 315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH | 317 BTUSB_VALID_LE_STATES }, 318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 319 BTUSB_WIDEBAND_SPEECH | 320 BTUSB_VALID_LE_STATES }, 321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH | 323 BTUSB_VALID_LE_STATES }, 324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH | 326 BTUSB_VALID_LE_STATES }, 327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH | 329 BTUSB_VALID_LE_STATES }, 330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH | 332 BTUSB_VALID_LE_STATES }, 333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH | 335 BTUSB_VALID_LE_STATES }, 336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH | 338 BTUSB_VALID_LE_STATES }, 339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH | 341 BTUSB_VALID_LE_STATES }, 342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH | 344 BTUSB_VALID_LE_STATES }, 345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH | 347 BTUSB_VALID_LE_STATES }, 348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH | 350 BTUSB_VALID_LE_STATES }, 351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH | 353 BTUSB_VALID_LE_STATES }, 354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH | 356 BTUSB_VALID_LE_STATES }, 357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH | 359 BTUSB_VALID_LE_STATES }, 360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH | 362 BTUSB_VALID_LE_STATES }, 363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH | 365 BTUSB_VALID_LE_STATES }, 366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH | 368 BTUSB_VALID_LE_STATES }, 369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH | 371 BTUSB_VALID_LE_STATES }, 372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH | 374 BTUSB_VALID_LE_STATES }, 375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH | 377 BTUSB_VALID_LE_STATES }, 378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 379 BTUSB_WIDEBAND_SPEECH | 380 BTUSB_VALID_LE_STATES }, 381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH | 383 BTUSB_VALID_LE_STATES }, 384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH | 386 BTUSB_VALID_LE_STATES }, 387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 388 BTUSB_WIDEBAND_SPEECH | 389 BTUSB_VALID_LE_STATES }, 390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH | 392 BTUSB_VALID_LE_STATES }, 393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 394 BTUSB_WIDEBAND_SPEECH | 395 BTUSB_VALID_LE_STATES }, 396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH | 398 BTUSB_VALID_LE_STATES }, 399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH | 401 BTUSB_VALID_LE_STATES }, 402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH | 404 BTUSB_VALID_LE_STATES }, 405 406 /* QCA WCN785x chipset */ 407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH | 409 BTUSB_VALID_LE_STATES }, 410 411 /* Broadcom BCM2035 */ 412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 415 416 /* Broadcom BCM2045 */ 417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 420 /* IBM/Lenovo ThinkPad with Broadcom chip */ 421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 424 /* HP laptop with Broadcom chip */ 425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 426 427 /* Dell laptop with Broadcom chip */ 428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 429 430 /* Dell Wireless 370 and 410 devices */ 431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 434 /* Belkin F8T012 and F8T013 devices */ 435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 438 /* Asus WL-BTD202 device */ 439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 441 /* Kensington Bluetooth USB adapter */ 442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 443 444 /* RTX Telecom based adapters with buggy SCO support */ 445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 447 448 /* CONWISE Technology based adapters with buggy SCO support */ 449 { USB_DEVICE(0x0e5e, 0x6622), 450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 451 452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 454 455 /* Digianswer devices */ 456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 458 459 /* CSR BlueCore Bluetooth Sniffer */ 460 { USB_DEVICE(0x0a12, 0x0002), 461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 462 463 /* Frontline ComProbe Bluetooth Sniffer */ 464 { USB_DEVICE(0x16d3, 0x0002), 465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 466 467 /* Marvell Bluetooth devices */ 468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 471 472 /* Intel Bluetooth devices */ 473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 480 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 481 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 482 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 483 BTUSB_INTEL_NO_WBS_SUPPORT | 484 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 485 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 486 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 487 BTUSB_INTEL_NO_WBS_SUPPORT | 488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 489 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 490 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 492 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 493 494 /* Other Intel Bluetooth devices */ 495 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 496 .driver_info = BTUSB_IGNORE }, 497 498 /* Realtek 8821CE Bluetooth devices */ 499 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 500 BTUSB_WIDEBAND_SPEECH }, 501 502 /* Realtek 8822CE Bluetooth devices */ 503 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 504 BTUSB_WIDEBAND_SPEECH }, 505 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 506 BTUSB_WIDEBAND_SPEECH }, 507 508 /* Realtek 8822CU Bluetooth devices */ 509 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 510 BTUSB_WIDEBAND_SPEECH }, 511 512 /* Realtek 8852AE Bluetooth devices */ 513 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 514 BTUSB_WIDEBAND_SPEECH }, 515 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 516 BTUSB_WIDEBAND_SPEECH }, 517 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 518 BTUSB_WIDEBAND_SPEECH }, 519 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 520 BTUSB_WIDEBAND_SPEECH }, 521 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 522 BTUSB_WIDEBAND_SPEECH }, 523 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 524 BTUSB_WIDEBAND_SPEECH }, 525 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 526 BTUSB_WIDEBAND_SPEECH }, 527 528 /* Realtek 8852CE Bluetooth devices */ 529 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 530 BTUSB_WIDEBAND_SPEECH }, 531 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 532 BTUSB_WIDEBAND_SPEECH }, 533 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 534 BTUSB_WIDEBAND_SPEECH }, 535 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 536 BTUSB_WIDEBAND_SPEECH }, 537 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 538 BTUSB_WIDEBAND_SPEECH }, 539 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 540 BTUSB_WIDEBAND_SPEECH }, 541 542 /* Realtek 8852BE Bluetooth devices */ 543 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 544 BTUSB_WIDEBAND_SPEECH }, 545 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 546 BTUSB_WIDEBAND_SPEECH }, 547 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 548 BTUSB_WIDEBAND_SPEECH }, 549 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 550 BTUSB_WIDEBAND_SPEECH }, 551 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 552 BTUSB_WIDEBAND_SPEECH }, 553 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 554 BTUSB_WIDEBAND_SPEECH }, 555 556 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 557 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 558 BTUSB_WIDEBAND_SPEECH }, 559 /* Realtek Bluetooth devices */ 560 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 561 .driver_info = BTUSB_REALTEK }, 562 563 /* MediaTek Bluetooth devices */ 564 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 565 .driver_info = BTUSB_MEDIATEK | 566 BTUSB_WIDEBAND_SPEECH | 567 BTUSB_VALID_LE_STATES }, 568 569 /* Additional MediaTek MT7615E Bluetooth devices */ 570 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 571 572 /* Additional MediaTek MT7663 Bluetooth devices */ 573 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 574 BTUSB_WIDEBAND_SPEECH | 575 BTUSB_VALID_LE_STATES }, 576 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 577 BTUSB_WIDEBAND_SPEECH | 578 BTUSB_VALID_LE_STATES }, 579 580 /* Additional MediaTek MT7668 Bluetooth devices */ 581 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 582 BTUSB_WIDEBAND_SPEECH | 583 BTUSB_VALID_LE_STATES }, 584 585 /* Additional MediaTek MT7921 Bluetooth devices */ 586 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 587 BTUSB_WIDEBAND_SPEECH | 588 BTUSB_VALID_LE_STATES }, 589 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 590 BTUSB_WIDEBAND_SPEECH | 591 BTUSB_VALID_LE_STATES }, 592 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 593 BTUSB_WIDEBAND_SPEECH | 594 BTUSB_VALID_LE_STATES }, 595 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 596 BTUSB_WIDEBAND_SPEECH | 597 BTUSB_VALID_LE_STATES }, 598 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 599 BTUSB_WIDEBAND_SPEECH | 600 BTUSB_VALID_LE_STATES }, 601 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 602 BTUSB_WIDEBAND_SPEECH | 603 BTUSB_VALID_LE_STATES }, 604 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 605 BTUSB_WIDEBAND_SPEECH | 606 BTUSB_VALID_LE_STATES }, 607 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 608 BTUSB_WIDEBAND_SPEECH | 609 BTUSB_VALID_LE_STATES }, 610 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 611 BTUSB_WIDEBAND_SPEECH | 612 BTUSB_VALID_LE_STATES }, 613 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 614 BTUSB_WIDEBAND_SPEECH | 615 BTUSB_VALID_LE_STATES }, 616 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 617 BTUSB_WIDEBAND_SPEECH | 618 BTUSB_VALID_LE_STATES }, 619 620 /* MediaTek MT7922A Bluetooth devices */ 621 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 622 BTUSB_WIDEBAND_SPEECH | 623 BTUSB_VALID_LE_STATES }, 624 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 625 BTUSB_WIDEBAND_SPEECH | 626 BTUSB_VALID_LE_STATES }, 627 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 628 BTUSB_WIDEBAND_SPEECH | 629 BTUSB_VALID_LE_STATES }, 630 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 631 BTUSB_WIDEBAND_SPEECH | 632 BTUSB_VALID_LE_STATES }, 633 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 634 BTUSB_WIDEBAND_SPEECH | 635 BTUSB_VALID_LE_STATES }, 636 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 637 BTUSB_WIDEBAND_SPEECH | 638 BTUSB_VALID_LE_STATES }, 639 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 640 BTUSB_WIDEBAND_SPEECH | 641 BTUSB_VALID_LE_STATES }, 642 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 643 BTUSB_WIDEBAND_SPEECH | 644 BTUSB_VALID_LE_STATES }, 645 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 646 BTUSB_WIDEBAND_SPEECH | 647 BTUSB_VALID_LE_STATES }, 648 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 649 BTUSB_WIDEBAND_SPEECH | 650 BTUSB_VALID_LE_STATES }, 651 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 652 BTUSB_WIDEBAND_SPEECH | 653 BTUSB_VALID_LE_STATES }, 654 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 655 BTUSB_WIDEBAND_SPEECH | 656 BTUSB_VALID_LE_STATES }, 657 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 658 BTUSB_WIDEBAND_SPEECH | 659 BTUSB_VALID_LE_STATES }, 660 661 /* Additional MediaTek MT7925 Bluetooth devices */ 662 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 663 BTUSB_WIDEBAND_SPEECH | 664 BTUSB_VALID_LE_STATES }, 665 666 /* Additional Realtek 8723AE Bluetooth devices */ 667 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 668 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 669 670 /* Additional Realtek 8723BE Bluetooth devices */ 671 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 672 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 673 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 674 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 675 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 676 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 677 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 678 679 /* Additional Realtek 8723BU Bluetooth devices */ 680 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 681 682 /* Additional Realtek 8723DE Bluetooth devices */ 683 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 684 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 685 686 /* Additional Realtek 8761BUV Bluetooth devices */ 687 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 688 BTUSB_WIDEBAND_SPEECH }, 689 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 690 BTUSB_WIDEBAND_SPEECH }, 691 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 692 BTUSB_WIDEBAND_SPEECH }, 693 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 694 BTUSB_WIDEBAND_SPEECH }, 695 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 696 BTUSB_WIDEBAND_SPEECH }, 697 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 698 BTUSB_WIDEBAND_SPEECH }, 699 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 700 BTUSB_WIDEBAND_SPEECH }, 701 702 /* Additional Realtek 8821AE Bluetooth devices */ 703 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 704 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 705 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 706 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 707 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 708 709 /* Additional Realtek 8822BE Bluetooth devices */ 710 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 711 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 712 713 /* Additional Realtek 8822CE Bluetooth devices */ 714 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 715 BTUSB_WIDEBAND_SPEECH }, 716 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 717 BTUSB_WIDEBAND_SPEECH }, 718 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 719 BTUSB_WIDEBAND_SPEECH }, 720 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 721 BTUSB_WIDEBAND_SPEECH }, 722 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 723 BTUSB_WIDEBAND_SPEECH }, 724 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 725 BTUSB_WIDEBAND_SPEECH }, 726 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 727 BTUSB_WIDEBAND_SPEECH }, 728 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 729 BTUSB_WIDEBAND_SPEECH }, 730 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 731 BTUSB_WIDEBAND_SPEECH }, 732 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 733 BTUSB_WIDEBAND_SPEECH }, 734 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 735 BTUSB_WIDEBAND_SPEECH }, 736 737 /* Actions Semiconductor ATS2851 based devices */ 738 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 739 740 /* Silicon Wave based devices */ 741 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 742 743 { } /* Terminating entry */ 744}; 745 746/* The Bluetooth USB module build into some devices needs to be reset on resume, 747 * this is a problem with the platform (likely shutting off all power) not with 748 * the module itself. So we use a DMI list to match known broken platforms. 749 */ 750static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 751 { 752 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 753 .matches = { 754 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 755 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 756 }, 757 }, 758 { 759 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 760 .matches = { 761 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 762 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 763 }, 764 }, 765 { 766 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 767 .matches = { 768 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 769 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 770 }, 771 }, 772 {} 773}; 774 775struct qca_dump_info { 776 /* fields for dump collection */ 777 u16 id_vendor; 778 u16 id_product; 779 u32 fw_version; 780 u32 controller_id; 781 u32 ram_dump_size; 782 u16 ram_dump_seqno; 783}; 784 785#define BTUSB_MAX_ISOC_FRAMES 10 786 787#define BTUSB_INTR_RUNNING 0 788#define BTUSB_BULK_RUNNING 1 789#define BTUSB_ISOC_RUNNING 2 790#define BTUSB_SUSPENDING 3 791#define BTUSB_DID_ISO_RESUME 4 792#define BTUSB_BOOTLOADER 5 793#define BTUSB_DOWNLOADING 6 794#define BTUSB_FIRMWARE_LOADED 7 795#define BTUSB_FIRMWARE_FAILED 8 796#define BTUSB_BOOTING 9 797#define BTUSB_DIAG_RUNNING 10 798#define BTUSB_OOB_WAKE_ENABLED 11 799#define BTUSB_HW_RESET_ACTIVE 12 800#define BTUSB_TX_WAIT_VND_EVT 13 801#define BTUSB_WAKEUP_AUTOSUSPEND 14 802#define BTUSB_USE_ALT3_FOR_WBS 15 803#define BTUSB_ALT6_CONTINUOUS_TX 16 804#define BTUSB_HW_SSR_ACTIVE 17 805 806struct btusb_data { 807 struct hci_dev *hdev; 808 struct usb_device *udev; 809 struct usb_interface *intf; 810 struct usb_interface *isoc; 811 struct usb_interface *diag; 812 unsigned isoc_ifnum; 813 814 unsigned long flags; 815 816 bool poll_sync; 817 int intr_interval; 818 struct work_struct work; 819 struct work_struct waker; 820 struct delayed_work rx_work; 821 822 struct sk_buff_head acl_q; 823 824 struct usb_anchor deferred; 825 struct usb_anchor tx_anchor; 826 int tx_in_flight; 827 spinlock_t txlock; 828 829 struct usb_anchor intr_anchor; 830 struct usb_anchor bulk_anchor; 831 struct usb_anchor isoc_anchor; 832 struct usb_anchor diag_anchor; 833 struct usb_anchor ctrl_anchor; 834 spinlock_t rxlock; 835 836 struct sk_buff *evt_skb; 837 struct sk_buff *acl_skb; 838 struct sk_buff *sco_skb; 839 840 struct usb_endpoint_descriptor *intr_ep; 841 struct usb_endpoint_descriptor *bulk_tx_ep; 842 struct usb_endpoint_descriptor *bulk_rx_ep; 843 struct usb_endpoint_descriptor *isoc_tx_ep; 844 struct usb_endpoint_descriptor *isoc_rx_ep; 845 struct usb_endpoint_descriptor *diag_tx_ep; 846 struct usb_endpoint_descriptor *diag_rx_ep; 847 848 struct gpio_desc *reset_gpio; 849 850 __u8 cmdreq_type; 851 __u8 cmdreq; 852 853 unsigned int sco_num; 854 unsigned int air_mode; 855 bool usb_alt6_packet_flow; 856 int isoc_altsetting; 857 int suspend_count; 858 859 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 860 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 861 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 862 863 int (*setup_on_usb)(struct hci_dev *hdev); 864 865 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 866 unsigned cmd_timeout_cnt; 867 868 struct qca_dump_info qca_dump; 869}; 870 871static void btusb_reset(struct hci_dev *hdev) 872{ 873 struct btusb_data *data; 874 int err; 875 876 if (hdev->reset) { 877 hdev->reset(hdev); 878 return; 879 } 880 881 data = hci_get_drvdata(hdev); 882 /* This is not an unbalanced PM reference since the device will reset */ 883 err = usb_autopm_get_interface(data->intf); 884 if (err) { 885 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 886 return; 887 } 888 889 bt_dev_err(hdev, "Resetting usb device."); 890 usb_queue_reset_device(data->intf); 891} 892 893static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 894{ 895 struct btusb_data *data = hci_get_drvdata(hdev); 896 struct gpio_desc *reset_gpio = data->reset_gpio; 897 struct btintel_data *intel_data = hci_get_priv(hdev); 898 899 if (++data->cmd_timeout_cnt < 5) 900 return; 901 902 if (intel_data->acpi_reset_method) { 903 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 904 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 905 return; 906 } 907 908 bt_dev_err(hdev, "Initiating acpi reset method"); 909 /* If ACPI reset method fails, lets try with legacy GPIO 910 * toggling 911 */ 912 if (!intel_data->acpi_reset_method(hdev)) { 913 return; 914 } 915 } 916 917 if (!reset_gpio) { 918 btusb_reset(hdev); 919 return; 920 } 921 922 /* 923 * Toggle the hard reset line if the platform provides one. The reset 924 * is going to yank the device off the USB and then replug. So doing 925 * once is enough. The cleanup is handled correctly on the way out 926 * (standard USB disconnect), and the new device is detected cleanly 927 * and bound to the driver again like it should be. 928 */ 929 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 930 bt_dev_err(hdev, "last reset failed? Not resetting again"); 931 return; 932 } 933 934 bt_dev_err(hdev, "Initiating HW reset via gpio"); 935 gpiod_set_value_cansleep(reset_gpio, 1); 936 msleep(100); 937 gpiod_set_value_cansleep(reset_gpio, 0); 938} 939 940#define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 941#define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 942#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 943 944#define RTK_SUB_EVENT_CODE_COREDUMP 0x34 945 946struct rtk_dev_coredump_hdr { 947 u8 type; 948 u8 code; 949 u8 reserved[2]; 950} __packed; 951 952static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 953 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 954{ 955 struct sk_buff *skb; 956 957 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 958 if (!skb) 959 return; 960 961 skb_put_data(skb, hdr, sizeof(*hdr)); 962 if (len) 963 skb_put_data(skb, buf, len); 964 965 if (!hci_devcd_init(hdev, skb->len)) { 966 hci_devcd_append(hdev, skb); 967 hci_devcd_complete(hdev); 968 } else { 969 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 970 kfree_skb(skb); 971 } 972} 973 974static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) 975{ 976 struct btusb_data *data = hci_get_drvdata(hdev); 977 struct gpio_desc *reset_gpio = data->reset_gpio; 978 struct rtk_dev_coredump_hdr hdr = { 979 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 980 }; 981 982 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 983 984 if (++data->cmd_timeout_cnt < 5) 985 return; 986 987 if (!reset_gpio) { 988 btusb_reset(hdev); 989 return; 990 } 991 992 /* Toggle the hard reset line. The Realtek device is going to 993 * yank itself off the USB and then replug. The cleanup is handled 994 * correctly on the way out (standard USB disconnect), and the new 995 * device is detected cleanly and bound to the driver again like 996 * it should be. 997 */ 998 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 999 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1000 return; 1001 } 1002 1003 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1004 gpiod_set_value_cansleep(reset_gpio, 1); 1005 msleep(200); 1006 gpiod_set_value_cansleep(reset_gpio, 0); 1007} 1008 1009static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1010{ 1011 struct rtk_dev_coredump_hdr hdr = { 1012 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1013 .code = code, 1014 }; 1015 1016 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1017 1018 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1019} 1020 1021static void btusb_qca_cmd_timeout(struct hci_dev *hdev) 1022{ 1023 struct btusb_data *data = hci_get_drvdata(hdev); 1024 struct gpio_desc *reset_gpio = data->reset_gpio; 1025 1026 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1027 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout"); 1028 return; 1029 } 1030 1031 if (++data->cmd_timeout_cnt < 5) 1032 return; 1033 1034 if (reset_gpio) { 1035 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1036 1037 /* Toggle the hard reset line. The qca bt device is going to 1038 * yank itself off the USB and then replug. The cleanup is handled 1039 * correctly on the way out (standard USB disconnect), and the new 1040 * device is detected cleanly and bound to the driver again like 1041 * it should be. 1042 */ 1043 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1044 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1045 return; 1046 } 1047 1048 gpiod_set_value_cansleep(reset_gpio, 0); 1049 msleep(200); 1050 gpiod_set_value_cansleep(reset_gpio, 1); 1051 1052 return; 1053 } 1054 1055 btusb_reset(hdev); 1056} 1057 1058static inline void btusb_free_frags(struct btusb_data *data) 1059{ 1060 unsigned long flags; 1061 1062 spin_lock_irqsave(&data->rxlock, flags); 1063 1064 dev_kfree_skb_irq(data->evt_skb); 1065 data->evt_skb = NULL; 1066 1067 dev_kfree_skb_irq(data->acl_skb); 1068 data->acl_skb = NULL; 1069 1070 dev_kfree_skb_irq(data->sco_skb); 1071 data->sco_skb = NULL; 1072 1073 spin_unlock_irqrestore(&data->rxlock, flags); 1074} 1075 1076static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1077{ 1078 if (data->intr_interval) { 1079 /* Trigger dequeue immediatelly if an event is received */ 1080 schedule_delayed_work(&data->rx_work, 0); 1081 } 1082 1083 return data->recv_event(data->hdev, skb); 1084} 1085 1086static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1087{ 1088 struct sk_buff *skb; 1089 unsigned long flags; 1090 int err = 0; 1091 1092 spin_lock_irqsave(&data->rxlock, flags); 1093 skb = data->evt_skb; 1094 1095 while (count) { 1096 int len; 1097 1098 if (!skb) { 1099 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1100 if (!skb) { 1101 err = -ENOMEM; 1102 break; 1103 } 1104 1105 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1106 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1107 } 1108 1109 len = min_t(uint, hci_skb_expect(skb), count); 1110 skb_put_data(skb, buffer, len); 1111 1112 count -= len; 1113 buffer += len; 1114 hci_skb_expect(skb) -= len; 1115 1116 if (skb->len == HCI_EVENT_HDR_SIZE) { 1117 /* Complete event header */ 1118 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1119 1120 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1121 kfree_skb(skb); 1122 skb = NULL; 1123 1124 err = -EILSEQ; 1125 break; 1126 } 1127 } 1128 1129 if (!hci_skb_expect(skb)) { 1130 /* Complete frame */ 1131 btusb_recv_event(data, skb); 1132 skb = NULL; 1133 } 1134 } 1135 1136 data->evt_skb = skb; 1137 spin_unlock_irqrestore(&data->rxlock, flags); 1138 1139 return err; 1140} 1141 1142static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1143{ 1144 /* Only queue ACL packet if intr_interval is set as it means 1145 * force_poll_sync has been enabled. 1146 */ 1147 if (!data->intr_interval) 1148 return data->recv_acl(data->hdev, skb); 1149 1150 skb_queue_tail(&data->acl_q, skb); 1151 schedule_delayed_work(&data->rx_work, data->intr_interval); 1152 1153 return 0; 1154} 1155 1156static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1157{ 1158 struct sk_buff *skb; 1159 unsigned long flags; 1160 int err = 0; 1161 1162 spin_lock_irqsave(&data->rxlock, flags); 1163 skb = data->acl_skb; 1164 1165 while (count) { 1166 int len; 1167 1168 if (!skb) { 1169 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1170 if (!skb) { 1171 err = -ENOMEM; 1172 break; 1173 } 1174 1175 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1176 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1177 } 1178 1179 len = min_t(uint, hci_skb_expect(skb), count); 1180 skb_put_data(skb, buffer, len); 1181 1182 count -= len; 1183 buffer += len; 1184 hci_skb_expect(skb) -= len; 1185 1186 if (skb->len == HCI_ACL_HDR_SIZE) { 1187 __le16 dlen = hci_acl_hdr(skb)->dlen; 1188 1189 /* Complete ACL header */ 1190 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1191 1192 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1193 kfree_skb(skb); 1194 skb = NULL; 1195 1196 err = -EILSEQ; 1197 break; 1198 } 1199 } 1200 1201 if (!hci_skb_expect(skb)) { 1202 /* Complete frame */ 1203 btusb_recv_acl(data, skb); 1204 skb = NULL; 1205 } 1206 } 1207 1208 data->acl_skb = skb; 1209 spin_unlock_irqrestore(&data->rxlock, flags); 1210 1211 return err; 1212} 1213 1214static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1215 struct hci_sco_hdr *hdr) 1216{ 1217 __u16 handle; 1218 1219 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1220 // Can't validate, userspace controls everything. 1221 return true; 1222 1223 /* 1224 * USB isochronous transfers are not designed to be reliable and may 1225 * lose fragments. When this happens, the next first fragment 1226 * encountered might actually be a continuation fragment. 1227 * Validate the handle to detect it and drop it, or else the upper 1228 * layer will get garbage for a while. 1229 */ 1230 1231 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1232 1233 switch (hci_conn_lookup_type(hdev, handle)) { 1234 case SCO_LINK: 1235 case ESCO_LINK: 1236 return true; 1237 default: 1238 return false; 1239 } 1240} 1241 1242static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1243{ 1244 struct sk_buff *skb; 1245 unsigned long flags; 1246 int err = 0; 1247 1248 spin_lock_irqsave(&data->rxlock, flags); 1249 skb = data->sco_skb; 1250 1251 while (count) { 1252 int len; 1253 1254 if (!skb) { 1255 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1256 if (!skb) { 1257 err = -ENOMEM; 1258 break; 1259 } 1260 1261 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1262 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1263 } 1264 1265 len = min_t(uint, hci_skb_expect(skb), count); 1266 skb_put_data(skb, buffer, len); 1267 1268 count -= len; 1269 buffer += len; 1270 hci_skb_expect(skb) -= len; 1271 1272 if (skb->len == HCI_SCO_HDR_SIZE) { 1273 /* Complete SCO header */ 1274 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1275 1276 hci_skb_expect(skb) = hdr->dlen; 1277 1278 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1279 !btusb_validate_sco_handle(data->hdev, hdr)) { 1280 kfree_skb(skb); 1281 skb = NULL; 1282 1283 err = -EILSEQ; 1284 break; 1285 } 1286 } 1287 1288 if (!hci_skb_expect(skb)) { 1289 /* Complete frame */ 1290 hci_recv_frame(data->hdev, skb); 1291 skb = NULL; 1292 } 1293 } 1294 1295 data->sco_skb = skb; 1296 spin_unlock_irqrestore(&data->rxlock, flags); 1297 1298 return err; 1299} 1300 1301static void btusb_intr_complete(struct urb *urb) 1302{ 1303 struct hci_dev *hdev = urb->context; 1304 struct btusb_data *data = hci_get_drvdata(hdev); 1305 int err; 1306 1307 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1308 urb->actual_length); 1309 1310 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1311 return; 1312 1313 if (urb->status == 0) { 1314 hdev->stat.byte_rx += urb->actual_length; 1315 1316 if (btusb_recv_intr(data, urb->transfer_buffer, 1317 urb->actual_length) < 0) { 1318 bt_dev_err(hdev, "corrupted event packet"); 1319 hdev->stat.err_rx++; 1320 } 1321 } else if (urb->status == -ENOENT) { 1322 /* Avoid suspend failed when usb_kill_urb */ 1323 return; 1324 } 1325 1326 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1327 return; 1328 1329 usb_mark_last_busy(data->udev); 1330 usb_anchor_urb(urb, &data->intr_anchor); 1331 1332 err = usb_submit_urb(urb, GFP_ATOMIC); 1333 if (err < 0) { 1334 /* -EPERM: urb is being killed; 1335 * -ENODEV: device got disconnected 1336 */ 1337 if (err != -EPERM && err != -ENODEV) 1338 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1339 urb, -err); 1340 if (err != -EPERM) 1341 hci_cmd_sync_cancel(hdev, -err); 1342 usb_unanchor_urb(urb); 1343 } 1344} 1345 1346static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1347{ 1348 struct btusb_data *data = hci_get_drvdata(hdev); 1349 struct urb *urb; 1350 unsigned char *buf; 1351 unsigned int pipe; 1352 int err, size; 1353 1354 BT_DBG("%s", hdev->name); 1355 1356 if (!data->intr_ep) 1357 return -ENODEV; 1358 1359 urb = usb_alloc_urb(0, mem_flags); 1360 if (!urb) 1361 return -ENOMEM; 1362 1363 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1364 1365 buf = kmalloc(size, mem_flags); 1366 if (!buf) { 1367 usb_free_urb(urb); 1368 return -ENOMEM; 1369 } 1370 1371 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1372 1373 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1374 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1375 1376 urb->transfer_flags |= URB_FREE_BUFFER; 1377 1378 usb_anchor_urb(urb, &data->intr_anchor); 1379 1380 err = usb_submit_urb(urb, mem_flags); 1381 if (err < 0) { 1382 if (err != -EPERM && err != -ENODEV) 1383 bt_dev_err(hdev, "urb %p submission failed (%d)", 1384 urb, -err); 1385 if (err != -EPERM) 1386 hci_cmd_sync_cancel(hdev, -err); 1387 usb_unanchor_urb(urb); 1388 } 1389 1390 /* Only initialize intr_interval if URB poll sync is enabled */ 1391 if (!data->poll_sync) 1392 goto done; 1393 1394 /* The units are frames (milliseconds) for full and low speed devices, 1395 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1396 * devices. 1397 * 1398 * This is done once on open/resume so it shouldn't change even if 1399 * force_poll_sync changes. 1400 */ 1401 switch (urb->dev->speed) { 1402 case USB_SPEED_SUPER_PLUS: 1403 case USB_SPEED_SUPER: /* units are 125us */ 1404 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1405 break; 1406 default: 1407 data->intr_interval = msecs_to_jiffies(urb->interval); 1408 break; 1409 } 1410 1411done: 1412 usb_free_urb(urb); 1413 1414 return err; 1415} 1416 1417static void btusb_bulk_complete(struct urb *urb) 1418{ 1419 struct hci_dev *hdev = urb->context; 1420 struct btusb_data *data = hci_get_drvdata(hdev); 1421 int err; 1422 1423 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1424 urb->actual_length); 1425 1426 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1427 return; 1428 1429 if (urb->status == 0) { 1430 hdev->stat.byte_rx += urb->actual_length; 1431 1432 if (data->recv_bulk(data, urb->transfer_buffer, 1433 urb->actual_length) < 0) { 1434 bt_dev_err(hdev, "corrupted ACL packet"); 1435 hdev->stat.err_rx++; 1436 } 1437 } else if (urb->status == -ENOENT) { 1438 /* Avoid suspend failed when usb_kill_urb */ 1439 return; 1440 } 1441 1442 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1443 return; 1444 1445 usb_anchor_urb(urb, &data->bulk_anchor); 1446 usb_mark_last_busy(data->udev); 1447 1448 err = usb_submit_urb(urb, GFP_ATOMIC); 1449 if (err < 0) { 1450 /* -EPERM: urb is being killed; 1451 * -ENODEV: device got disconnected 1452 */ 1453 if (err != -EPERM && err != -ENODEV) 1454 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1455 urb, -err); 1456 usb_unanchor_urb(urb); 1457 } 1458} 1459 1460static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1461{ 1462 struct btusb_data *data = hci_get_drvdata(hdev); 1463 struct urb *urb; 1464 unsigned char *buf; 1465 unsigned int pipe; 1466 int err, size = HCI_MAX_FRAME_SIZE; 1467 1468 BT_DBG("%s", hdev->name); 1469 1470 if (!data->bulk_rx_ep) 1471 return -ENODEV; 1472 1473 urb = usb_alloc_urb(0, mem_flags); 1474 if (!urb) 1475 return -ENOMEM; 1476 1477 buf = kmalloc(size, mem_flags); 1478 if (!buf) { 1479 usb_free_urb(urb); 1480 return -ENOMEM; 1481 } 1482 1483 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1484 1485 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1486 btusb_bulk_complete, hdev); 1487 1488 urb->transfer_flags |= URB_FREE_BUFFER; 1489 1490 usb_mark_last_busy(data->udev); 1491 usb_anchor_urb(urb, &data->bulk_anchor); 1492 1493 err = usb_submit_urb(urb, mem_flags); 1494 if (err < 0) { 1495 if (err != -EPERM && err != -ENODEV) 1496 bt_dev_err(hdev, "urb %p submission failed (%d)", 1497 urb, -err); 1498 usb_unanchor_urb(urb); 1499 } 1500 1501 usb_free_urb(urb); 1502 1503 return err; 1504} 1505 1506static void btusb_isoc_complete(struct urb *urb) 1507{ 1508 struct hci_dev *hdev = urb->context; 1509 struct btusb_data *data = hci_get_drvdata(hdev); 1510 int i, err; 1511 1512 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1513 urb->actual_length); 1514 1515 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1516 return; 1517 1518 if (urb->status == 0) { 1519 for (i = 0; i < urb->number_of_packets; i++) { 1520 unsigned int offset = urb->iso_frame_desc[i].offset; 1521 unsigned int length = urb->iso_frame_desc[i].actual_length; 1522 1523 if (urb->iso_frame_desc[i].status) 1524 continue; 1525 1526 hdev->stat.byte_rx += length; 1527 1528 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1529 length) < 0) { 1530 bt_dev_err(hdev, "corrupted SCO packet"); 1531 hdev->stat.err_rx++; 1532 } 1533 } 1534 } else if (urb->status == -ENOENT) { 1535 /* Avoid suspend failed when usb_kill_urb */ 1536 return; 1537 } 1538 1539 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1540 return; 1541 1542 usb_anchor_urb(urb, &data->isoc_anchor); 1543 1544 err = usb_submit_urb(urb, GFP_ATOMIC); 1545 if (err < 0) { 1546 /* -EPERM: urb is being killed; 1547 * -ENODEV: device got disconnected 1548 */ 1549 if (err != -EPERM && err != -ENODEV) 1550 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1551 urb, -err); 1552 usb_unanchor_urb(urb); 1553 } 1554} 1555 1556static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1557 int mtu, struct btusb_data *data) 1558{ 1559 int i = 0, offset = 0; 1560 unsigned int interval; 1561 1562 BT_DBG("len %d mtu %d", len, mtu); 1563 1564 /* For mSBC ALT 6 settings some chips need to transmit the data 1565 * continuously without the zero length of USB packets. 1566 */ 1567 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1568 goto ignore_usb_alt6_packet_flow; 1569 1570 /* For mSBC ALT 6 setting the host will send the packet at continuous 1571 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1572 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1573 * To maintain the rate we send 63bytes of usb packets alternatively for 1574 * 7ms and 8ms to maintain the rate as 7.5ms. 1575 */ 1576 if (data->usb_alt6_packet_flow) { 1577 interval = 7; 1578 data->usb_alt6_packet_flow = false; 1579 } else { 1580 interval = 6; 1581 data->usb_alt6_packet_flow = true; 1582 } 1583 1584 for (i = 0; i < interval; i++) { 1585 urb->iso_frame_desc[i].offset = offset; 1586 urb->iso_frame_desc[i].length = offset; 1587 } 1588 1589ignore_usb_alt6_packet_flow: 1590 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1591 urb->iso_frame_desc[i].offset = offset; 1592 urb->iso_frame_desc[i].length = len; 1593 i++; 1594 } 1595 1596 urb->number_of_packets = i; 1597} 1598 1599static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1600{ 1601 int i, offset = 0; 1602 1603 BT_DBG("len %d mtu %d", len, mtu); 1604 1605 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1606 i++, offset += mtu, len -= mtu) { 1607 urb->iso_frame_desc[i].offset = offset; 1608 urb->iso_frame_desc[i].length = mtu; 1609 } 1610 1611 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1612 urb->iso_frame_desc[i].offset = offset; 1613 urb->iso_frame_desc[i].length = len; 1614 i++; 1615 } 1616 1617 urb->number_of_packets = i; 1618} 1619 1620static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1621{ 1622 struct btusb_data *data = hci_get_drvdata(hdev); 1623 struct urb *urb; 1624 unsigned char *buf; 1625 unsigned int pipe; 1626 int err, size; 1627 1628 BT_DBG("%s", hdev->name); 1629 1630 if (!data->isoc_rx_ep) 1631 return -ENODEV; 1632 1633 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1634 if (!urb) 1635 return -ENOMEM; 1636 1637 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1638 BTUSB_MAX_ISOC_FRAMES; 1639 1640 buf = kmalloc(size, mem_flags); 1641 if (!buf) { 1642 usb_free_urb(urb); 1643 return -ENOMEM; 1644 } 1645 1646 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1647 1648 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1649 hdev, data->isoc_rx_ep->bInterval); 1650 1651 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1652 1653 __fill_isoc_descriptor(urb, size, 1654 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1655 1656 usb_anchor_urb(urb, &data->isoc_anchor); 1657 1658 err = usb_submit_urb(urb, mem_flags); 1659 if (err < 0) { 1660 if (err != -EPERM && err != -ENODEV) 1661 bt_dev_err(hdev, "urb %p submission failed (%d)", 1662 urb, -err); 1663 usb_unanchor_urb(urb); 1664 } 1665 1666 usb_free_urb(urb); 1667 1668 return err; 1669} 1670 1671static void btusb_diag_complete(struct urb *urb) 1672{ 1673 struct hci_dev *hdev = urb->context; 1674 struct btusb_data *data = hci_get_drvdata(hdev); 1675 int err; 1676 1677 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1678 urb->actual_length); 1679 1680 if (urb->status == 0) { 1681 struct sk_buff *skb; 1682 1683 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1684 if (skb) { 1685 skb_put_data(skb, urb->transfer_buffer, 1686 urb->actual_length); 1687 hci_recv_diag(hdev, skb); 1688 } 1689 } else if (urb->status == -ENOENT) { 1690 /* Avoid suspend failed when usb_kill_urb */ 1691 return; 1692 } 1693 1694 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1695 return; 1696 1697 usb_anchor_urb(urb, &data->diag_anchor); 1698 usb_mark_last_busy(data->udev); 1699 1700 err = usb_submit_urb(urb, GFP_ATOMIC); 1701 if (err < 0) { 1702 /* -EPERM: urb is being killed; 1703 * -ENODEV: device got disconnected 1704 */ 1705 if (err != -EPERM && err != -ENODEV) 1706 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1707 urb, -err); 1708 usb_unanchor_urb(urb); 1709 } 1710} 1711 1712static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1713{ 1714 struct btusb_data *data = hci_get_drvdata(hdev); 1715 struct urb *urb; 1716 unsigned char *buf; 1717 unsigned int pipe; 1718 int err, size = HCI_MAX_FRAME_SIZE; 1719 1720 BT_DBG("%s", hdev->name); 1721 1722 if (!data->diag_rx_ep) 1723 return -ENODEV; 1724 1725 urb = usb_alloc_urb(0, mem_flags); 1726 if (!urb) 1727 return -ENOMEM; 1728 1729 buf = kmalloc(size, mem_flags); 1730 if (!buf) { 1731 usb_free_urb(urb); 1732 return -ENOMEM; 1733 } 1734 1735 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1736 1737 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1738 btusb_diag_complete, hdev); 1739 1740 urb->transfer_flags |= URB_FREE_BUFFER; 1741 1742 usb_mark_last_busy(data->udev); 1743 usb_anchor_urb(urb, &data->diag_anchor); 1744 1745 err = usb_submit_urb(urb, mem_flags); 1746 if (err < 0) { 1747 if (err != -EPERM && err != -ENODEV) 1748 bt_dev_err(hdev, "urb %p submission failed (%d)", 1749 urb, -err); 1750 usb_unanchor_urb(urb); 1751 } 1752 1753 usb_free_urb(urb); 1754 1755 return err; 1756} 1757 1758static void btusb_tx_complete(struct urb *urb) 1759{ 1760 struct sk_buff *skb = urb->context; 1761 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1762 struct btusb_data *data = hci_get_drvdata(hdev); 1763 unsigned long flags; 1764 1765 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1766 urb->actual_length); 1767 1768 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1769 goto done; 1770 1771 if (!urb->status) { 1772 hdev->stat.byte_tx += urb->transfer_buffer_length; 1773 } else { 1774 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1775 hci_cmd_sync_cancel(hdev, -urb->status); 1776 hdev->stat.err_tx++; 1777 } 1778 1779done: 1780 spin_lock_irqsave(&data->txlock, flags); 1781 data->tx_in_flight--; 1782 spin_unlock_irqrestore(&data->txlock, flags); 1783 1784 kfree(urb->setup_packet); 1785 1786 kfree_skb(skb); 1787} 1788 1789static void btusb_isoc_tx_complete(struct urb *urb) 1790{ 1791 struct sk_buff *skb = urb->context; 1792 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1793 1794 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1795 urb->actual_length); 1796 1797 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1798 goto done; 1799 1800 if (!urb->status) 1801 hdev->stat.byte_tx += urb->transfer_buffer_length; 1802 else 1803 hdev->stat.err_tx++; 1804 1805done: 1806 kfree(urb->setup_packet); 1807 1808 kfree_skb(skb); 1809} 1810 1811static int btusb_open(struct hci_dev *hdev) 1812{ 1813 struct btusb_data *data = hci_get_drvdata(hdev); 1814 int err; 1815 1816 BT_DBG("%s", hdev->name); 1817 1818 err = usb_autopm_get_interface(data->intf); 1819 if (err < 0) 1820 return err; 1821 1822 /* Patching USB firmware files prior to starting any URBs of HCI path 1823 * It is more safe to use USB bulk channel for downloading USB patch 1824 */ 1825 if (data->setup_on_usb) { 1826 err = data->setup_on_usb(hdev); 1827 if (err < 0) 1828 goto setup_fail; 1829 } 1830 1831 data->intf->needs_remote_wakeup = 1; 1832 1833 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1834 goto done; 1835 1836 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1837 if (err < 0) 1838 goto failed; 1839 1840 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1841 if (err < 0) { 1842 usb_kill_anchored_urbs(&data->intr_anchor); 1843 goto failed; 1844 } 1845 1846 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1847 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1848 1849 if (data->diag) { 1850 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1851 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1852 } 1853 1854done: 1855 usb_autopm_put_interface(data->intf); 1856 return 0; 1857 1858failed: 1859 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1860setup_fail: 1861 usb_autopm_put_interface(data->intf); 1862 return err; 1863} 1864 1865static void btusb_stop_traffic(struct btusb_data *data) 1866{ 1867 usb_kill_anchored_urbs(&data->intr_anchor); 1868 usb_kill_anchored_urbs(&data->bulk_anchor); 1869 usb_kill_anchored_urbs(&data->isoc_anchor); 1870 usb_kill_anchored_urbs(&data->diag_anchor); 1871 usb_kill_anchored_urbs(&data->ctrl_anchor); 1872} 1873 1874static int btusb_close(struct hci_dev *hdev) 1875{ 1876 struct btusb_data *data = hci_get_drvdata(hdev); 1877 int err; 1878 1879 BT_DBG("%s", hdev->name); 1880 1881 cancel_delayed_work(&data->rx_work); 1882 cancel_work_sync(&data->work); 1883 cancel_work_sync(&data->waker); 1884 1885 skb_queue_purge(&data->acl_q); 1886 1887 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1888 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1889 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1890 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1891 1892 btusb_stop_traffic(data); 1893 btusb_free_frags(data); 1894 1895 err = usb_autopm_get_interface(data->intf); 1896 if (err < 0) 1897 goto failed; 1898 1899 data->intf->needs_remote_wakeup = 0; 1900 1901 /* Enable remote wake up for auto-suspend */ 1902 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1903 data->intf->needs_remote_wakeup = 1; 1904 1905 usb_autopm_put_interface(data->intf); 1906 1907failed: 1908 usb_scuttle_anchored_urbs(&data->deferred); 1909 return 0; 1910} 1911 1912static int btusb_flush(struct hci_dev *hdev) 1913{ 1914 struct btusb_data *data = hci_get_drvdata(hdev); 1915 1916 BT_DBG("%s", hdev->name); 1917 1918 cancel_delayed_work(&data->rx_work); 1919 1920 skb_queue_purge(&data->acl_q); 1921 1922 usb_kill_anchored_urbs(&data->tx_anchor); 1923 btusb_free_frags(data); 1924 1925 return 0; 1926} 1927 1928static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1929{ 1930 struct btusb_data *data = hci_get_drvdata(hdev); 1931 struct usb_ctrlrequest *dr; 1932 struct urb *urb; 1933 unsigned int pipe; 1934 1935 urb = usb_alloc_urb(0, GFP_KERNEL); 1936 if (!urb) 1937 return ERR_PTR(-ENOMEM); 1938 1939 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1940 if (!dr) { 1941 usb_free_urb(urb); 1942 return ERR_PTR(-ENOMEM); 1943 } 1944 1945 dr->bRequestType = data->cmdreq_type; 1946 dr->bRequest = data->cmdreq; 1947 dr->wIndex = 0; 1948 dr->wValue = 0; 1949 dr->wLength = __cpu_to_le16(skb->len); 1950 1951 pipe = usb_sndctrlpipe(data->udev, 0x00); 1952 1953 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1954 skb->data, skb->len, btusb_tx_complete, skb); 1955 1956 skb->dev = (void *)hdev; 1957 1958 return urb; 1959} 1960 1961static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1962{ 1963 struct btusb_data *data = hci_get_drvdata(hdev); 1964 struct urb *urb; 1965 unsigned int pipe; 1966 1967 if (!data->bulk_tx_ep) 1968 return ERR_PTR(-ENODEV); 1969 1970 urb = usb_alloc_urb(0, GFP_KERNEL); 1971 if (!urb) 1972 return ERR_PTR(-ENOMEM); 1973 1974 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1975 1976 usb_fill_bulk_urb(urb, data->udev, pipe, 1977 skb->data, skb->len, btusb_tx_complete, skb); 1978 1979 skb->dev = (void *)hdev; 1980 1981 return urb; 1982} 1983 1984static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1985{ 1986 struct btusb_data *data = hci_get_drvdata(hdev); 1987 struct urb *urb; 1988 unsigned int pipe; 1989 1990 if (!data->isoc_tx_ep) 1991 return ERR_PTR(-ENODEV); 1992 1993 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1994 if (!urb) 1995 return ERR_PTR(-ENOMEM); 1996 1997 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1998 1999 usb_fill_int_urb(urb, data->udev, pipe, 2000 skb->data, skb->len, btusb_isoc_tx_complete, 2001 skb, data->isoc_tx_ep->bInterval); 2002 2003 urb->transfer_flags = URB_ISO_ASAP; 2004 2005 if (data->isoc_altsetting == 6) 2006 __fill_isoc_descriptor_msbc(urb, skb->len, 2007 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2008 data); 2009 else 2010 __fill_isoc_descriptor(urb, skb->len, 2011 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2012 skb->dev = (void *)hdev; 2013 2014 return urb; 2015} 2016 2017static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2018{ 2019 struct btusb_data *data = hci_get_drvdata(hdev); 2020 int err; 2021 2022 usb_anchor_urb(urb, &data->tx_anchor); 2023 2024 err = usb_submit_urb(urb, GFP_KERNEL); 2025 if (err < 0) { 2026 if (err != -EPERM && err != -ENODEV) 2027 bt_dev_err(hdev, "urb %p submission failed (%d)", 2028 urb, -err); 2029 kfree(urb->setup_packet); 2030 usb_unanchor_urb(urb); 2031 } else { 2032 usb_mark_last_busy(data->udev); 2033 } 2034 2035 usb_free_urb(urb); 2036 return err; 2037} 2038 2039static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2040{ 2041 struct btusb_data *data = hci_get_drvdata(hdev); 2042 unsigned long flags; 2043 bool suspending; 2044 2045 spin_lock_irqsave(&data->txlock, flags); 2046 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2047 if (!suspending) 2048 data->tx_in_flight++; 2049 spin_unlock_irqrestore(&data->txlock, flags); 2050 2051 if (!suspending) 2052 return submit_tx_urb(hdev, urb); 2053 2054 usb_anchor_urb(urb, &data->deferred); 2055 schedule_work(&data->waker); 2056 2057 usb_free_urb(urb); 2058 return 0; 2059} 2060 2061static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2062{ 2063 struct urb *urb; 2064 2065 BT_DBG("%s", hdev->name); 2066 2067 switch (hci_skb_pkt_type(skb)) { 2068 case HCI_COMMAND_PKT: 2069 urb = alloc_ctrl_urb(hdev, skb); 2070 if (IS_ERR(urb)) 2071 return PTR_ERR(urb); 2072 2073 hdev->stat.cmd_tx++; 2074 return submit_or_queue_tx_urb(hdev, urb); 2075 2076 case HCI_ACLDATA_PKT: 2077 urb = alloc_bulk_urb(hdev, skb); 2078 if (IS_ERR(urb)) 2079 return PTR_ERR(urb); 2080 2081 hdev->stat.acl_tx++; 2082 return submit_or_queue_tx_urb(hdev, urb); 2083 2084 case HCI_SCODATA_PKT: 2085 if (hci_conn_num(hdev, SCO_LINK) < 1) 2086 return -ENODEV; 2087 2088 urb = alloc_isoc_urb(hdev, skb); 2089 if (IS_ERR(urb)) 2090 return PTR_ERR(urb); 2091 2092 hdev->stat.sco_tx++; 2093 return submit_tx_urb(hdev, urb); 2094 2095 case HCI_ISODATA_PKT: 2096 urb = alloc_bulk_urb(hdev, skb); 2097 if (IS_ERR(urb)) 2098 return PTR_ERR(urb); 2099 2100 return submit_or_queue_tx_urb(hdev, urb); 2101 } 2102 2103 return -EILSEQ; 2104} 2105 2106static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2107{ 2108 struct btusb_data *data = hci_get_drvdata(hdev); 2109 2110 BT_DBG("%s evt %d", hdev->name, evt); 2111 2112 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2113 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2114 data->air_mode = evt; 2115 schedule_work(&data->work); 2116 } 2117} 2118 2119static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2120{ 2121 struct btusb_data *data = hci_get_drvdata(hdev); 2122 struct usb_interface *intf = data->isoc; 2123 struct usb_endpoint_descriptor *ep_desc; 2124 int i, err; 2125 2126 if (!data->isoc) 2127 return -ENODEV; 2128 2129 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2130 if (err < 0) { 2131 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2132 return err; 2133 } 2134 2135 data->isoc_altsetting = altsetting; 2136 2137 data->isoc_tx_ep = NULL; 2138 data->isoc_rx_ep = NULL; 2139 2140 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2141 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2142 2143 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2144 data->isoc_tx_ep = ep_desc; 2145 continue; 2146 } 2147 2148 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2149 data->isoc_rx_ep = ep_desc; 2150 continue; 2151 } 2152 } 2153 2154 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2155 bt_dev_err(hdev, "invalid SCO descriptors"); 2156 return -ENODEV; 2157 } 2158 2159 return 0; 2160} 2161 2162static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2163{ 2164 struct btusb_data *data = hci_get_drvdata(hdev); 2165 int err; 2166 2167 if (data->isoc_altsetting != new_alts) { 2168 unsigned long flags; 2169 2170 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2171 usb_kill_anchored_urbs(&data->isoc_anchor); 2172 2173 /* When isochronous alternate setting needs to be 2174 * changed, because SCO connection has been added 2175 * or removed, a packet fragment may be left in the 2176 * reassembling state. This could lead to wrongly 2177 * assembled fragments. 2178 * 2179 * Clear outstanding fragment when selecting a new 2180 * alternate setting. 2181 */ 2182 spin_lock_irqsave(&data->rxlock, flags); 2183 dev_kfree_skb_irq(data->sco_skb); 2184 data->sco_skb = NULL; 2185 spin_unlock_irqrestore(&data->rxlock, flags); 2186 2187 err = __set_isoc_interface(hdev, new_alts); 2188 if (err < 0) 2189 return err; 2190 } 2191 2192 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2193 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2194 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2195 else 2196 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2197 } 2198 2199 return 0; 2200} 2201 2202static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2203 int alt) 2204{ 2205 struct usb_interface *intf = data->isoc; 2206 int i; 2207 2208 BT_DBG("Looking for Alt no :%d", alt); 2209 2210 if (!intf) 2211 return NULL; 2212 2213 for (i = 0; i < intf->num_altsetting; i++) { 2214 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2215 return &intf->altsetting[i]; 2216 } 2217 2218 return NULL; 2219} 2220 2221static void btusb_work(struct work_struct *work) 2222{ 2223 struct btusb_data *data = container_of(work, struct btusb_data, work); 2224 struct hci_dev *hdev = data->hdev; 2225 int new_alts = 0; 2226 int err; 2227 2228 if (data->sco_num > 0) { 2229 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2230 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2231 if (err < 0) { 2232 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2233 usb_kill_anchored_urbs(&data->isoc_anchor); 2234 return; 2235 } 2236 2237 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2238 } 2239 2240 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2241 if (hdev->voice_setting & 0x0020) { 2242 static const int alts[3] = { 2, 4, 5 }; 2243 2244 new_alts = alts[data->sco_num - 1]; 2245 } else { 2246 new_alts = data->sco_num; 2247 } 2248 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2249 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2250 * many adapters do not support it. Alt 1 appears to 2251 * work for all adapters that do not have alt 6, and 2252 * which work with WBS at all. Some devices prefer 2253 * alt 3 (HCI payload >= 60 Bytes let air packet 2254 * data satisfy 60 bytes), requiring 2255 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2256 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2257 */ 2258 if (btusb_find_altsetting(data, 6)) 2259 new_alts = 6; 2260 else if (btusb_find_altsetting(data, 3) && 2261 hdev->sco_mtu >= 72 && 2262 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2263 new_alts = 3; 2264 else 2265 new_alts = 1; 2266 } 2267 2268 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2269 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2270 } else { 2271 usb_kill_anchored_urbs(&data->isoc_anchor); 2272 2273 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2274 __set_isoc_interface(hdev, 0); 2275 2276 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2277 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2278 } 2279} 2280 2281static void btusb_waker(struct work_struct *work) 2282{ 2283 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2284 int err; 2285 2286 err = usb_autopm_get_interface(data->intf); 2287 if (err < 0) 2288 return; 2289 2290 usb_autopm_put_interface(data->intf); 2291} 2292 2293static void btusb_rx_work(struct work_struct *work) 2294{ 2295 struct btusb_data *data = container_of(work, struct btusb_data, 2296 rx_work.work); 2297 struct sk_buff *skb; 2298 2299 /* Dequeue ACL data received during the interval */ 2300 while ((skb = skb_dequeue(&data->acl_q))) 2301 data->recv_acl(data->hdev, skb); 2302} 2303 2304static int btusb_setup_bcm92035(struct hci_dev *hdev) 2305{ 2306 struct sk_buff *skb; 2307 u8 val = 0x00; 2308 2309 BT_DBG("%s", hdev->name); 2310 2311 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2312 if (IS_ERR(skb)) 2313 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2314 else 2315 kfree_skb(skb); 2316 2317 return 0; 2318} 2319 2320static int btusb_setup_csr(struct hci_dev *hdev) 2321{ 2322 struct btusb_data *data = hci_get_drvdata(hdev); 2323 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2324 struct hci_rp_read_local_version *rp; 2325 struct sk_buff *skb; 2326 bool is_fake = false; 2327 int ret; 2328 2329 BT_DBG("%s", hdev->name); 2330 2331 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2332 HCI_INIT_TIMEOUT); 2333 if (IS_ERR(skb)) { 2334 int err = PTR_ERR(skb); 2335 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2336 return err; 2337 } 2338 2339 rp = skb_pull_data(skb, sizeof(*rp)); 2340 if (!rp) { 2341 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2342 kfree_skb(skb); 2343 return -EIO; 2344 } 2345 2346 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2347 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2348 2349 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2350 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2351 le16_to_cpu(rp->manufacturer)); 2352 2353 /* Detect a wide host of Chinese controllers that aren't CSR. 2354 * 2355 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2356 * 2357 * The main thing they have in common is that these are really popular low-cost 2358 * options that support newer Bluetooth versions but rely on heavy VID/PID 2359 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2360 * 2361 * We detect actual CSR devices by checking that the HCI manufacturer code 2362 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2363 * HCI rev values always match. As they both store the firmware number. 2364 */ 2365 if (le16_to_cpu(rp->manufacturer) != 10 || 2366 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2367 is_fake = true; 2368 2369 /* Known legit CSR firmware build numbers and their supported BT versions: 2370 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2371 * - 1.2 (0x2) -> 0x04d9, 0x0529 2372 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2373 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2374 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2375 * 2376 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2377 * support BT 1.1 only; so it's a dead giveaway when some 2378 * third-party BT 4.0 dongle reuses it. 2379 */ 2380 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2381 rp->hci_ver > BLUETOOTH_VER_1_1) 2382 is_fake = true; 2383 2384 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2385 rp->hci_ver > BLUETOOTH_VER_1_2) 2386 is_fake = true; 2387 2388 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2389 rp->hci_ver > BLUETOOTH_VER_2_0) 2390 is_fake = true; 2391 2392 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2393 rp->hci_ver > BLUETOOTH_VER_2_1) 2394 is_fake = true; 2395 2396 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2397 rp->hci_ver > BLUETOOTH_VER_4_0) 2398 is_fake = true; 2399 2400 /* Other clones which beat all the above checks */ 2401 else if (bcdDevice == 0x0134 && 2402 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2403 rp->hci_ver == BLUETOOTH_VER_2_0) 2404 is_fake = true; 2405 2406 if (is_fake) { 2407 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2408 2409 /* Generally these clones have big discrepancies between 2410 * advertised features and what's actually supported. 2411 * Probably will need to be expanded in the future; 2412 * without these the controller will lock up. 2413 */ 2414 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2415 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2416 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2417 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2418 2419 /* Clear the reset quirk since this is not an actual 2420 * early Bluetooth 1.1 device from CSR. 2421 */ 2422 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2423 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2424 2425 /* 2426 * Special workaround for these BT 4.0 chip clones, and potentially more: 2427 * 2428 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2429 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2430 * 2431 * These controllers are really messed-up. 2432 * 2433 * 1. Their bulk RX endpoint will never report any data unless 2434 * the device was suspended at least once (yes, really). 2435 * 2. They will not wakeup when autosuspended and receiving data 2436 * on their bulk RX endpoint from e.g. a keyboard or mouse 2437 * (IOW remote-wakeup support is broken for the bulk endpoint). 2438 * 2439 * To fix 1. enable runtime-suspend, force-suspend the 2440 * HCI and then wake-it up by disabling runtime-suspend. 2441 * 2442 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2443 * will still be autosuspended when it is not open. 2444 * 2445 * -- 2446 * 2447 * Because these are widespread problems we prefer generic solutions; so 2448 * apply this initialization quirk to every controller that gets here, 2449 * it should be harmless. The alternative is to not work at all. 2450 */ 2451 pm_runtime_allow(&data->udev->dev); 2452 2453 ret = pm_runtime_suspend(&data->udev->dev); 2454 if (ret >= 0) 2455 msleep(200); 2456 else 2457 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2458 2459 pm_runtime_forbid(&data->udev->dev); 2460 2461 device_set_wakeup_capable(&data->udev->dev, false); 2462 2463 /* Re-enable autosuspend if this was requested */ 2464 if (enable_autosuspend) 2465 usb_enable_autosuspend(data->udev); 2466 } 2467 2468 kfree_skb(skb); 2469 2470 return 0; 2471} 2472 2473static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2474{ 2475 struct sk_buff *skb; 2476 struct hci_event_hdr *hdr; 2477 struct hci_ev_cmd_complete *evt; 2478 2479 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2480 if (!skb) 2481 return -ENOMEM; 2482 2483 hdr = skb_put(skb, sizeof(*hdr)); 2484 hdr->evt = HCI_EV_CMD_COMPLETE; 2485 hdr->plen = sizeof(*evt) + 1; 2486 2487 evt = skb_put(skb, sizeof(*evt)); 2488 evt->ncmd = 0x01; 2489 evt->opcode = cpu_to_le16(opcode); 2490 2491 skb_put_u8(skb, 0x00); 2492 2493 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2494 2495 return hci_recv_frame(hdev, skb); 2496} 2497 2498static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2499 int count) 2500{ 2501 struct hci_dev *hdev = data->hdev; 2502 2503 /* When the device is in bootloader mode, then it can send 2504 * events via the bulk endpoint. These events are treated the 2505 * same way as the ones received from the interrupt endpoint. 2506 */ 2507 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2508 return btusb_recv_intr(data, buffer, count); 2509 2510 return btusb_recv_bulk(data, buffer, count); 2511} 2512 2513static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2514{ 2515 struct urb *urb; 2516 2517 BT_DBG("%s", hdev->name); 2518 2519 switch (hci_skb_pkt_type(skb)) { 2520 case HCI_COMMAND_PKT: 2521 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2522 struct hci_command_hdr *cmd = (void *)skb->data; 2523 __u16 opcode = le16_to_cpu(cmd->opcode); 2524 2525 /* When in bootloader mode and the command 0xfc09 2526 * is received, it needs to be send down the 2527 * bulk endpoint. So allocate a bulk URB instead. 2528 */ 2529 if (opcode == 0xfc09) 2530 urb = alloc_bulk_urb(hdev, skb); 2531 else 2532 urb = alloc_ctrl_urb(hdev, skb); 2533 2534 /* When the 0xfc01 command is issued to boot into 2535 * the operational firmware, it will actually not 2536 * send a command complete event. To keep the flow 2537 * control working inject that event here. 2538 */ 2539 if (opcode == 0xfc01) 2540 inject_cmd_complete(hdev, opcode); 2541 } else { 2542 urb = alloc_ctrl_urb(hdev, skb); 2543 } 2544 if (IS_ERR(urb)) 2545 return PTR_ERR(urb); 2546 2547 hdev->stat.cmd_tx++; 2548 return submit_or_queue_tx_urb(hdev, urb); 2549 2550 case HCI_ACLDATA_PKT: 2551 urb = alloc_bulk_urb(hdev, skb); 2552 if (IS_ERR(urb)) 2553 return PTR_ERR(urb); 2554 2555 hdev->stat.acl_tx++; 2556 return submit_or_queue_tx_urb(hdev, urb); 2557 2558 case HCI_SCODATA_PKT: 2559 if (hci_conn_num(hdev, SCO_LINK) < 1) 2560 return -ENODEV; 2561 2562 urb = alloc_isoc_urb(hdev, skb); 2563 if (IS_ERR(urb)) 2564 return PTR_ERR(urb); 2565 2566 hdev->stat.sco_tx++; 2567 return submit_tx_urb(hdev, urb); 2568 2569 case HCI_ISODATA_PKT: 2570 urb = alloc_bulk_urb(hdev, skb); 2571 if (IS_ERR(urb)) 2572 return PTR_ERR(urb); 2573 2574 return submit_or_queue_tx_urb(hdev, urb); 2575 } 2576 2577 return -EILSEQ; 2578} 2579 2580static int btusb_setup_realtek(struct hci_dev *hdev) 2581{ 2582 struct btusb_data *data = hci_get_drvdata(hdev); 2583 int ret; 2584 2585 ret = btrtl_setup_realtek(hdev); 2586 2587 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2588 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2589 2590 return ret; 2591} 2592 2593static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2594{ 2595 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2596 struct rtk_dev_coredump_hdr hdr = { 2597 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2598 }; 2599 2600 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2601 skb->len); 2602 2603 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2604 kfree_skb(skb); 2605 2606 return 0; 2607 } 2608 2609 return hci_recv_frame(hdev, skb); 2610} 2611 2612/* UHW CR mapping */ 2613#define MTK_BT_MISC 0x70002510 2614#define MTK_BT_SUBSYS_RST 0x70002610 2615#define MTK_UDMA_INT_STA_BT 0x74000024 2616#define MTK_UDMA_INT_STA_BT1 0x74000308 2617#define MTK_BT_WDT_STATUS 0x740003A0 2618#define MTK_EP_RST_OPT 0x74011890 2619#define MTK_EP_RST_IN_OUT_OPT 0x00010001 2620#define MTK_BT_RST_DONE 0x00000100 2621#define MTK_BT_RESET_REG_CONNV3 0x70028610 2622#define MTK_BT_READ_DEV_ID 0x70010200 2623 2624 2625static void btusb_mtk_wmt_recv(struct urb *urb) 2626{ 2627 struct hci_dev *hdev = urb->context; 2628 struct btusb_data *data = hci_get_drvdata(hdev); 2629 struct sk_buff *skb; 2630 int err; 2631 2632 if (urb->status == 0 && urb->actual_length > 0) { 2633 hdev->stat.byte_rx += urb->actual_length; 2634 2635 /* WMT event shouldn't be fragmented and the size should be 2636 * less than HCI_WMT_MAX_EVENT_SIZE. 2637 */ 2638 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC); 2639 if (!skb) { 2640 hdev->stat.err_rx++; 2641 kfree(urb->setup_packet); 2642 return; 2643 } 2644 2645 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2646 skb_put_data(skb, urb->transfer_buffer, urb->actual_length); 2647 2648 /* When someone waits for the WMT event, the skb is being cloned 2649 * and being processed the events from there then. 2650 */ 2651 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) { 2652 data->evt_skb = skb_clone(skb, GFP_ATOMIC); 2653 if (!data->evt_skb) { 2654 kfree_skb(skb); 2655 kfree(urb->setup_packet); 2656 return; 2657 } 2658 } 2659 2660 err = hci_recv_frame(hdev, skb); 2661 if (err < 0) { 2662 kfree_skb(data->evt_skb); 2663 data->evt_skb = NULL; 2664 kfree(urb->setup_packet); 2665 return; 2666 } 2667 2668 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT, 2669 &data->flags)) { 2670 /* Barrier to sync with other CPUs */ 2671 smp_mb__after_atomic(); 2672 wake_up_bit(&data->flags, 2673 BTUSB_TX_WAIT_VND_EVT); 2674 } 2675 kfree(urb->setup_packet); 2676 return; 2677 } else if (urb->status == -ENOENT) { 2678 /* Avoid suspend failed when usb_kill_urb */ 2679 return; 2680 } 2681 2682 usb_mark_last_busy(data->udev); 2683 2684 /* The URB complete handler is still called with urb->actual_length = 0 2685 * when the event is not available, so we should keep re-submitting 2686 * URB until WMT event returns, Also, It's necessary to wait some time 2687 * between the two consecutive control URBs to relax the target device 2688 * to generate the event. Otherwise, the WMT event cannot return from 2689 * the device successfully. 2690 */ 2691 udelay(500); 2692 2693 usb_anchor_urb(urb, &data->ctrl_anchor); 2694 err = usb_submit_urb(urb, GFP_ATOMIC); 2695 if (err < 0) { 2696 kfree(urb->setup_packet); 2697 /* -EPERM: urb is being killed; 2698 * -ENODEV: device got disconnected 2699 */ 2700 if (err != -EPERM && err != -ENODEV) 2701 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2702 urb, -err); 2703 usb_unanchor_urb(urb); 2704 } 2705} 2706 2707static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev) 2708{ 2709 struct btusb_data *data = hci_get_drvdata(hdev); 2710 struct usb_ctrlrequest *dr; 2711 unsigned char *buf; 2712 int err, size = 64; 2713 unsigned int pipe; 2714 struct urb *urb; 2715 2716 urb = usb_alloc_urb(0, GFP_KERNEL); 2717 if (!urb) 2718 return -ENOMEM; 2719 2720 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2721 if (!dr) { 2722 usb_free_urb(urb); 2723 return -ENOMEM; 2724 } 2725 2726 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN; 2727 dr->bRequest = 1; 2728 dr->wIndex = cpu_to_le16(0); 2729 dr->wValue = cpu_to_le16(48); 2730 dr->wLength = cpu_to_le16(size); 2731 2732 buf = kmalloc(size, GFP_KERNEL); 2733 if (!buf) { 2734 kfree(dr); 2735 usb_free_urb(urb); 2736 return -ENOMEM; 2737 } 2738 2739 pipe = usb_rcvctrlpipe(data->udev, 0); 2740 2741 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2742 buf, size, btusb_mtk_wmt_recv, hdev); 2743 2744 urb->transfer_flags |= URB_FREE_BUFFER; 2745 2746 usb_anchor_urb(urb, &data->ctrl_anchor); 2747 err = usb_submit_urb(urb, GFP_KERNEL); 2748 if (err < 0) { 2749 if (err != -EPERM && err != -ENODEV) 2750 bt_dev_err(hdev, "urb %p submission failed (%d)", 2751 urb, -err); 2752 usb_unanchor_urb(urb); 2753 } 2754 2755 usb_free_urb(urb); 2756 2757 return err; 2758} 2759 2760static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev, 2761 struct btmtk_hci_wmt_params *wmt_params) 2762{ 2763 struct btusb_data *data = hci_get_drvdata(hdev); 2764 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc; 2765 u32 hlen, status = BTMTK_WMT_INVALID; 2766 struct btmtk_hci_wmt_evt *wmt_evt; 2767 struct btmtk_hci_wmt_cmd *wc; 2768 struct btmtk_wmt_hdr *hdr; 2769 int err; 2770 2771 /* Send the WMT command and wait until the WMT event returns */ 2772 hlen = sizeof(*hdr) + wmt_params->dlen; 2773 if (hlen > 255) 2774 return -EINVAL; 2775 2776 wc = kzalloc(hlen, GFP_KERNEL); 2777 if (!wc) 2778 return -ENOMEM; 2779 2780 hdr = &wc->hdr; 2781 hdr->dir = 1; 2782 hdr->op = wmt_params->op; 2783 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1); 2784 hdr->flag = wmt_params->flag; 2785 memcpy(wc->data, wmt_params->data, wmt_params->dlen); 2786 2787 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2788 2789 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling, 2790 * it needs constantly polling control pipe until the host received the 2791 * WMT event, thus, we should require to specifically acquire PM counter 2792 * on the USB to prevent the interface from entering auto suspended 2793 * while WMT cmd/event in progress. 2794 */ 2795 err = usb_autopm_get_interface(data->intf); 2796 if (err < 0) 2797 goto err_free_wc; 2798 2799 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc); 2800 2801 if (err < 0) { 2802 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2803 usb_autopm_put_interface(data->intf); 2804 goto err_free_wc; 2805 } 2806 2807 /* Submit control IN URB on demand to process the WMT event */ 2808 err = btusb_mtk_submit_wmt_recv_urb(hdev); 2809 2810 usb_autopm_put_interface(data->intf); 2811 2812 if (err < 0) 2813 goto err_free_wc; 2814 2815 /* The vendor specific WMT commands are all answered by a vendor 2816 * specific event and will have the Command Status or Command 2817 * Complete as with usual HCI command flow control. 2818 * 2819 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT 2820 * state to be cleared. The driver specific event receive routine 2821 * will clear that state and with that indicate completion of the 2822 * WMT command. 2823 */ 2824 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT, 2825 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT); 2826 if (err == -EINTR) { 2827 bt_dev_err(hdev, "Execution of wmt command interrupted"); 2828 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2829 goto err_free_wc; 2830 } 2831 2832 if (err) { 2833 bt_dev_err(hdev, "Execution of wmt command timed out"); 2834 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2835 err = -ETIMEDOUT; 2836 goto err_free_wc; 2837 } 2838 2839 if (data->evt_skb == NULL) 2840 goto err_free_wc; 2841 2842 /* Parse and handle the return WMT event */ 2843 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; 2844 if (wmt_evt->whdr.op != hdr->op) { 2845 bt_dev_err(hdev, "Wrong op received %d expected %d", 2846 wmt_evt->whdr.op, hdr->op); 2847 err = -EIO; 2848 goto err_free_skb; 2849 } 2850 2851 switch (wmt_evt->whdr.op) { 2852 case BTMTK_WMT_SEMAPHORE: 2853 if (wmt_evt->whdr.flag == 2) 2854 status = BTMTK_WMT_PATCH_UNDONE; 2855 else 2856 status = BTMTK_WMT_PATCH_DONE; 2857 break; 2858 case BTMTK_WMT_FUNC_CTRL: 2859 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; 2860 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) 2861 status = BTMTK_WMT_ON_DONE; 2862 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) 2863 status = BTMTK_WMT_ON_PROGRESS; 2864 else 2865 status = BTMTK_WMT_ON_UNDONE; 2866 break; 2867 case BTMTK_WMT_PATCH_DWNLD: 2868 if (wmt_evt->whdr.flag == 2) 2869 status = BTMTK_WMT_PATCH_DONE; 2870 else if (wmt_evt->whdr.flag == 1) 2871 status = BTMTK_WMT_PATCH_PROGRESS; 2872 else 2873 status = BTMTK_WMT_PATCH_UNDONE; 2874 break; 2875 } 2876 2877 if (wmt_params->status) 2878 *wmt_params->status = status; 2879 2880err_free_skb: 2881 kfree_skb(data->evt_skb); 2882 data->evt_skb = NULL; 2883err_free_wc: 2884 kfree(wc); 2885 return err; 2886} 2887 2888static int btusb_mtk_func_query(struct hci_dev *hdev) 2889{ 2890 struct btmtk_hci_wmt_params wmt_params; 2891 int status, err; 2892 u8 param = 0; 2893 2894 /* Query whether the function is enabled */ 2895 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2896 wmt_params.flag = 4; 2897 wmt_params.dlen = sizeof(param); 2898 wmt_params.data = ¶m; 2899 wmt_params.status = &status; 2900 2901 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2902 if (err < 0) { 2903 bt_dev_err(hdev, "Failed to query function status (%d)", err); 2904 return err; 2905 } 2906 2907 return status; 2908} 2909 2910static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) 2911{ 2912 struct hci_dev *hdev = data->hdev; 2913 int pipe, err; 2914 void *buf; 2915 2916 buf = kzalloc(4, GFP_KERNEL); 2917 if (!buf) 2918 return -ENOMEM; 2919 2920 put_unaligned_le32(val, buf); 2921 2922 pipe = usb_sndctrlpipe(data->udev, 0); 2923 err = usb_control_msg(data->udev, pipe, 0x02, 2924 0x5E, 2925 reg >> 16, reg & 0xffff, 2926 buf, 4, USB_CTRL_SET_TIMEOUT); 2927 if (err < 0) { 2928 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); 2929 goto err_free_buf; 2930 } 2931 2932err_free_buf: 2933 kfree(buf); 2934 2935 return err; 2936} 2937 2938static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2939{ 2940 struct hci_dev *hdev = data->hdev; 2941 int pipe, err; 2942 void *buf; 2943 2944 buf = kzalloc(4, GFP_KERNEL); 2945 if (!buf) 2946 return -ENOMEM; 2947 2948 pipe = usb_rcvctrlpipe(data->udev, 0); 2949 err = usb_control_msg(data->udev, pipe, 0x01, 2950 0xDE, 2951 reg >> 16, reg & 0xffff, 2952 buf, 4, USB_CTRL_SET_TIMEOUT); 2953 if (err < 0) { 2954 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); 2955 goto err_free_buf; 2956 } 2957 2958 *val = get_unaligned_le32(buf); 2959 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); 2960 2961err_free_buf: 2962 kfree(buf); 2963 2964 return err; 2965} 2966 2967static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2968{ 2969 int pipe, err, size = sizeof(u32); 2970 void *buf; 2971 2972 buf = kzalloc(size, GFP_KERNEL); 2973 if (!buf) 2974 return -ENOMEM; 2975 2976 pipe = usb_rcvctrlpipe(data->udev, 0); 2977 err = usb_control_msg(data->udev, pipe, 0x63, 2978 USB_TYPE_VENDOR | USB_DIR_IN, 2979 reg >> 16, reg & 0xffff, 2980 buf, size, USB_CTRL_SET_TIMEOUT); 2981 if (err < 0) 2982 goto err_free_buf; 2983 2984 *val = get_unaligned_le32(buf); 2985 2986err_free_buf: 2987 kfree(buf); 2988 2989 return err; 2990} 2991 2992static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) 2993{ 2994 return btusb_mtk_reg_read(data, reg, id); 2995} 2996 2997static u32 btusb_mtk_reset_done(struct hci_dev *hdev) 2998{ 2999 struct btusb_data *data = hci_get_drvdata(hdev); 3000 u32 val = 0; 3001 3002 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); 3003 3004 return val & MTK_BT_RST_DONE; 3005} 3006 3007static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 3008{ 3009 struct btusb_data *data = hci_get_drvdata(hdev); 3010 struct btmediatek_data *mediatek; 3011 u32 val; 3012 int err; 3013 3014 /* It's MediaTek specific bluetooth reset mechanism via USB */ 3015 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 3016 bt_dev_err(hdev, "last reset failed? Not resetting again"); 3017 return -EBUSY; 3018 } 3019 3020 err = usb_autopm_get_interface(data->intf); 3021 if (err < 0) 3022 return err; 3023 3024 btusb_stop_traffic(data); 3025 usb_kill_anchored_urbs(&data->tx_anchor); 3026 mediatek = hci_get_priv(hdev); 3027 3028 if (mediatek->dev_id == 0x7925) { 3029 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3030 val |= (1 << 5); 3031 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3032 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3033 val &= 0xFFFF00FF; 3034 val |= (1 << 13); 3035 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3036 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); 3037 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3038 val |= (1 << 0); 3039 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3040 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3041 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3042 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3043 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3044 msleep(100); 3045 } else { 3046 /* It's Device EndPoint Reset Option Register */ 3047 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); 3048 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3049 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); 3050 3051 /* Reset the bluetooth chip via USB interface. */ 3052 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); 3053 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3054 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3055 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3056 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3057 /* MT7921 need to delay 20ms between toggle reset bit */ 3058 msleep(20); 3059 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); 3060 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); 3061 } 3062 3063 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val, 3064 val & MTK_BT_RST_DONE, 20000, 1000000); 3065 if (err < 0) 3066 bt_dev_err(hdev, "Reset timeout"); 3067 3068 btusb_mtk_id_get(data, 0x70010200, &val); 3069 if (!val) 3070 bt_dev_err(hdev, "Can't get device id, subsys reset fail."); 3071 3072 usb_queue_reset_device(data->intf); 3073 3074 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); 3075 3076 return err; 3077} 3078 3079static int btusb_mtk_setup(struct hci_dev *hdev) 3080{ 3081 struct btusb_data *data = hci_get_drvdata(hdev); 3082 struct btmtk_hci_wmt_params wmt_params; 3083 ktime_t calltime, delta, rettime; 3084 struct btmtk_tci_sleep tci_sleep; 3085 unsigned long long duration; 3086 struct sk_buff *skb; 3087 const char *fwname; 3088 int err, status; 3089 u32 dev_id = 0; 3090 char fw_bin_name[64]; 3091 u32 fw_version = 0, fw_flavor = 0; 3092 u8 param; 3093 struct btmediatek_data *mediatek; 3094 3095 calltime = ktime_get(); 3096 3097 err = btusb_mtk_id_get(data, 0x80000008, &dev_id); 3098 if (err < 0) { 3099 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3100 return err; 3101 } 3102 3103 if (!dev_id || dev_id != 0x7663) { 3104 err = btusb_mtk_id_get(data, 0x70010200, &dev_id); 3105 if (err < 0) { 3106 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3107 return err; 3108 } 3109 err = btusb_mtk_id_get(data, 0x80021004, &fw_version); 3110 if (err < 0) { 3111 bt_dev_err(hdev, "Failed to get fw version (%d)", err); 3112 return err; 3113 } 3114 err = btusb_mtk_id_get(data, 0x70010020, &fw_flavor); 3115 if (err < 0) { 3116 bt_dev_err(hdev, "Failed to get fw flavor (%d)", err); 3117 return err; 3118 } 3119 } 3120 3121 mediatek = hci_get_priv(hdev); 3122 mediatek->dev_id = dev_id; 3123 mediatek->reset_sync = btusb_mtk_reset; 3124 3125 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version); 3126 if (err < 0) 3127 bt_dev_err(hdev, "Failed to register coredump (%d)", err); 3128 3129 switch (dev_id) { 3130 case 0x7663: 3131 fwname = FIRMWARE_MT7663; 3132 break; 3133 case 0x7668: 3134 fwname = FIRMWARE_MT7668; 3135 break; 3136 case 0x7922: 3137 case 0x7961: 3138 case 0x7925: 3139 if (dev_id == 0x7925) 3140 snprintf(fw_bin_name, sizeof(fw_bin_name), 3141 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3142 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1); 3143 else if (dev_id == 0x7961 && fw_flavor) 3144 snprintf(fw_bin_name, sizeof(fw_bin_name), 3145 "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin", 3146 dev_id & 0xffff, (fw_version & 0xff) + 1); 3147 else 3148 snprintf(fw_bin_name, sizeof(fw_bin_name), 3149 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3150 dev_id & 0xffff, (fw_version & 0xff) + 1); 3151 3152 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name, 3153 btusb_mtk_hci_wmt_sync); 3154 if (err < 0) { 3155 bt_dev_err(hdev, "Failed to set up firmware (%d)", err); 3156 return err; 3157 } 3158 3159 /* It's Device EndPoint Reset Option Register */ 3160 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3161 3162 /* Enable Bluetooth protocol */ 3163 param = 1; 3164 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3165 wmt_params.flag = 0; 3166 wmt_params.dlen = sizeof(param); 3167 wmt_params.data = ¶m; 3168 wmt_params.status = NULL; 3169 3170 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3171 if (err < 0) { 3172 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3173 return err; 3174 } 3175 3176 hci_set_msft_opcode(hdev, 0xFD30); 3177 hci_set_aosp_capable(hdev); 3178 goto done; 3179 default: 3180 bt_dev_err(hdev, "Unsupported hardware variant (%08x)", 3181 dev_id); 3182 return -ENODEV; 3183 } 3184 3185 /* Query whether the firmware is already download */ 3186 wmt_params.op = BTMTK_WMT_SEMAPHORE; 3187 wmt_params.flag = 1; 3188 wmt_params.dlen = 0; 3189 wmt_params.data = NULL; 3190 wmt_params.status = &status; 3191 3192 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3193 if (err < 0) { 3194 bt_dev_err(hdev, "Failed to query firmware status (%d)", err); 3195 return err; 3196 } 3197 3198 if (status == BTMTK_WMT_PATCH_DONE) { 3199 bt_dev_info(hdev, "firmware already downloaded"); 3200 goto ignore_setup_fw; 3201 } 3202 3203 /* Setup a firmware which the device definitely requires */ 3204 err = btmtk_setup_firmware(hdev, fwname, 3205 btusb_mtk_hci_wmt_sync); 3206 if (err < 0) 3207 return err; 3208 3209ignore_setup_fw: 3210 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, 3211 status < 0 || status != BTMTK_WMT_ON_PROGRESS, 3212 2000, 5000000); 3213 /* -ETIMEDOUT happens */ 3214 if (err < 0) 3215 return err; 3216 3217 /* The other errors happen in btusb_mtk_func_query */ 3218 if (status < 0) 3219 return status; 3220 3221 if (status == BTMTK_WMT_ON_DONE) { 3222 bt_dev_info(hdev, "function already on"); 3223 goto ignore_func_on; 3224 } 3225 3226 /* Enable Bluetooth protocol */ 3227 param = 1; 3228 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3229 wmt_params.flag = 0; 3230 wmt_params.dlen = sizeof(param); 3231 wmt_params.data = ¶m; 3232 wmt_params.status = NULL; 3233 3234 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3235 if (err < 0) { 3236 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3237 return err; 3238 } 3239 3240ignore_func_on: 3241 /* Apply the low power environment setup */ 3242 tci_sleep.mode = 0x5; 3243 tci_sleep.duration = cpu_to_le16(0x640); 3244 tci_sleep.host_duration = cpu_to_le16(0x640); 3245 tci_sleep.host_wakeup_pin = 0; 3246 tci_sleep.time_compensation = 0; 3247 3248 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, 3249 HCI_INIT_TIMEOUT); 3250 if (IS_ERR(skb)) { 3251 err = PTR_ERR(skb); 3252 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); 3253 return err; 3254 } 3255 kfree_skb(skb); 3256 3257done: 3258 rettime = ktime_get(); 3259 delta = ktime_sub(rettime, calltime); 3260 duration = (unsigned long long)ktime_to_ns(delta) >> 10; 3261 3262 bt_dev_info(hdev, "Device setup in %llu usecs", duration); 3263 3264 return 0; 3265} 3266 3267static int btusb_mtk_shutdown(struct hci_dev *hdev) 3268{ 3269 struct btmtk_hci_wmt_params wmt_params; 3270 u8 param = 0; 3271 int err; 3272 3273 /* Disable the device */ 3274 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3275 wmt_params.flag = 0; 3276 wmt_params.dlen = sizeof(param); 3277 wmt_params.data = ¶m; 3278 wmt_params.status = NULL; 3279 3280 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3281 if (err < 0) { 3282 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3283 return err; 3284 } 3285 3286 return 0; 3287} 3288 3289static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3290{ 3291 struct btusb_data *data = hci_get_drvdata(hdev); 3292 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); 3293 3294 switch (handle) { 3295 case 0xfc6f: /* Firmware dump from device */ 3296 /* When the firmware hangs, the device can no longer 3297 * suspend and thus disable auto-suspend. 3298 */ 3299 usb_disable_autosuspend(data->udev); 3300 3301 /* We need to forward the diagnostic packet to userspace daemon 3302 * for backward compatibility, so we have to clone the packet 3303 * extraly for the in-kernel coredump support. 3304 */ 3305 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) { 3306 struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC); 3307 3308 if (skb_cd) 3309 btmtk_process_coredump(hdev, skb_cd); 3310 } 3311 3312 fallthrough; 3313 case 0x05ff: /* Firmware debug logging 1 */ 3314 case 0x05fe: /* Firmware debug logging 2 */ 3315 return hci_recv_diag(hdev, skb); 3316 } 3317 3318 return hci_recv_frame(hdev, skb); 3319} 3320 3321#ifdef CONFIG_PM 3322/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3323static int marvell_config_oob_wake(struct hci_dev *hdev) 3324{ 3325 struct sk_buff *skb; 3326 struct btusb_data *data = hci_get_drvdata(hdev); 3327 struct device *dev = &data->udev->dev; 3328 u16 pin, gap, opcode; 3329 int ret; 3330 u8 cmd[5]; 3331 3332 /* Move on if no wakeup pin specified */ 3333 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3334 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3335 return 0; 3336 3337 /* Vendor specific command to configure a GPIO as wake-up pin */ 3338 opcode = hci_opcode_pack(0x3F, 0x59); 3339 cmd[0] = opcode & 0xFF; 3340 cmd[1] = opcode >> 8; 3341 cmd[2] = 2; /* length of parameters that follow */ 3342 cmd[3] = pin; 3343 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3344 3345 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3346 if (!skb) { 3347 bt_dev_err(hdev, "%s: No memory", __func__); 3348 return -ENOMEM; 3349 } 3350 3351 skb_put_data(skb, cmd, sizeof(cmd)); 3352 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3353 3354 ret = btusb_send_frame(hdev, skb); 3355 if (ret) { 3356 bt_dev_err(hdev, "%s: configuration failed", __func__); 3357 kfree_skb(skb); 3358 return ret; 3359 } 3360 3361 return 0; 3362} 3363#endif 3364 3365static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3366 const bdaddr_t *bdaddr) 3367{ 3368 struct sk_buff *skb; 3369 u8 buf[8]; 3370 long ret; 3371 3372 buf[0] = 0xfe; 3373 buf[1] = sizeof(bdaddr_t); 3374 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3375 3376 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3377 if (IS_ERR(skb)) { 3378 ret = PTR_ERR(skb); 3379 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3380 ret); 3381 return ret; 3382 } 3383 kfree_skb(skb); 3384 3385 return 0; 3386} 3387 3388static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3389 const bdaddr_t *bdaddr) 3390{ 3391 struct sk_buff *skb; 3392 u8 buf[10]; 3393 long ret; 3394 3395 buf[0] = 0x01; 3396 buf[1] = 0x01; 3397 buf[2] = 0x00; 3398 buf[3] = sizeof(bdaddr_t); 3399 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3400 3401 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3402 if (IS_ERR(skb)) { 3403 ret = PTR_ERR(skb); 3404 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3405 return ret; 3406 } 3407 kfree_skb(skb); 3408 3409 return 0; 3410} 3411 3412static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3413 const bdaddr_t *bdaddr) 3414{ 3415 struct sk_buff *skb; 3416 u8 buf[6]; 3417 long ret; 3418 3419 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3420 3421 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3422 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3423 if (IS_ERR(skb)) { 3424 ret = PTR_ERR(skb); 3425 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3426 return ret; 3427 } 3428 kfree_skb(skb); 3429 3430 return 0; 3431} 3432 3433#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3434#define QCA_MEMDUMP_SIZE_MAX 0x100000 3435#define QCA_MEMDUMP_VSE_CLASS 0x01 3436#define QCA_MEMDUMP_MSG_TYPE 0x08 3437#define QCA_MEMDUMP_PKT_SIZE 248 3438#define QCA_LAST_SEQUENCE_NUM 0xffff 3439 3440struct qca_dump_hdr { 3441 u8 vse_class; 3442 u8 msg_type; 3443 __le16 seqno; 3444 u8 reserved; 3445 union { 3446 u8 data[0]; 3447 struct { 3448 __le32 ram_dump_size; 3449 u8 data0[0]; 3450 } __packed; 3451 }; 3452} __packed; 3453 3454 3455static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3456{ 3457 char buf[128]; 3458 struct btusb_data *btdata = hci_get_drvdata(hdev); 3459 3460 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3461 btdata->qca_dump.controller_id); 3462 skb_put_data(skb, buf, strlen(buf)); 3463 3464 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3465 btdata->qca_dump.fw_version); 3466 skb_put_data(skb, buf, strlen(buf)); 3467 3468 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3469 btusb_driver.name); 3470 skb_put_data(skb, buf, strlen(buf)); 3471 3472 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3473 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3474 skb_put_data(skb, buf, strlen(buf)); 3475 3476 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3477 hdev->lmp_subver); 3478 skb_put_data(skb, buf, strlen(buf)); 3479} 3480 3481static void btusb_coredump_qca(struct hci_dev *hdev) 3482{ 3483 static const u8 param[] = { 0x26 }; 3484 struct sk_buff *skb; 3485 3486 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT); 3487 if (IS_ERR(skb)) 3488 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb)); 3489 kfree_skb(skb); 3490} 3491 3492/* 3493 * ==0: not a dump pkt. 3494 * < 0: fails to handle a dump pkt 3495 * > 0: otherwise. 3496 */ 3497static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3498{ 3499 int ret = 1; 3500 u8 pkt_type; 3501 u8 *sk_ptr; 3502 unsigned int sk_len; 3503 u16 seqno; 3504 u32 dump_size; 3505 3506 struct hci_event_hdr *event_hdr; 3507 struct hci_acl_hdr *acl_hdr; 3508 struct qca_dump_hdr *dump_hdr; 3509 struct btusb_data *btdata = hci_get_drvdata(hdev); 3510 struct usb_device *udev = btdata->udev; 3511 3512 pkt_type = hci_skb_pkt_type(skb); 3513 sk_ptr = skb->data; 3514 sk_len = skb->len; 3515 3516 if (pkt_type == HCI_ACLDATA_PKT) { 3517 acl_hdr = hci_acl_hdr(skb); 3518 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3519 return 0; 3520 sk_ptr += HCI_ACL_HDR_SIZE; 3521 sk_len -= HCI_ACL_HDR_SIZE; 3522 event_hdr = (struct hci_event_hdr *)sk_ptr; 3523 } else { 3524 event_hdr = hci_event_hdr(skb); 3525 } 3526 3527 if ((event_hdr->evt != HCI_VENDOR_PKT) 3528 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3529 return 0; 3530 3531 sk_ptr += HCI_EVENT_HDR_SIZE; 3532 sk_len -= HCI_EVENT_HDR_SIZE; 3533 3534 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3535 if ((sk_len < offsetof(struct qca_dump_hdr, data)) 3536 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) 3537 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3538 return 0; 3539 3540 /*it is dump pkt now*/ 3541 seqno = le16_to_cpu(dump_hdr->seqno); 3542 if (seqno == 0) { 3543 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3544 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3545 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3546 ret = -EILSEQ; 3547 bt_dev_err(hdev, "Invalid memdump size(%u)", 3548 dump_size); 3549 goto out; 3550 } 3551 3552 ret = hci_devcd_init(hdev, dump_size); 3553 if (ret < 0) { 3554 bt_dev_err(hdev, "memdump init error(%d)", ret); 3555 goto out; 3556 } 3557 3558 btdata->qca_dump.ram_dump_size = dump_size; 3559 btdata->qca_dump.ram_dump_seqno = 0; 3560 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3561 sk_len -= offsetof(struct qca_dump_hdr, data0); 3562 3563 usb_disable_autosuspend(udev); 3564 bt_dev_info(hdev, "%s memdump size(%u)\n", 3565 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3566 dump_size); 3567 } else { 3568 sk_ptr += offsetof(struct qca_dump_hdr, data); 3569 sk_len -= offsetof(struct qca_dump_hdr, data); 3570 } 3571 3572 if (!btdata->qca_dump.ram_dump_size) { 3573 ret = -EINVAL; 3574 bt_dev_err(hdev, "memdump is not active"); 3575 goto out; 3576 } 3577 3578 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3579 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3580 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3581 bt_dev_err(hdev, 3582 "expected memdump seqno(%u) is not received(%u)\n", 3583 btdata->qca_dump.ram_dump_seqno, seqno); 3584 btdata->qca_dump.ram_dump_seqno = seqno; 3585 kfree_skb(skb); 3586 return ret; 3587 } 3588 3589 skb_pull(skb, skb->len - sk_len); 3590 hci_devcd_append(hdev, skb); 3591 btdata->qca_dump.ram_dump_seqno++; 3592 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3593 bt_dev_info(hdev, 3594 "memdump done: pkts(%u), total(%u)\n", 3595 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3596 3597 hci_devcd_complete(hdev); 3598 goto out; 3599 } 3600 return ret; 3601 3602out: 3603 if (btdata->qca_dump.ram_dump_size) 3604 usb_enable_autosuspend(udev); 3605 btdata->qca_dump.ram_dump_size = 0; 3606 btdata->qca_dump.ram_dump_seqno = 0; 3607 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3608 3609 if (ret < 0) 3610 kfree_skb(skb); 3611 return ret; 3612} 3613 3614static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3615{ 3616 if (handle_dump_pkt_qca(hdev, skb)) 3617 return 0; 3618 return hci_recv_frame(hdev, skb); 3619} 3620 3621static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3622{ 3623 if (handle_dump_pkt_qca(hdev, skb)) 3624 return 0; 3625 return hci_recv_frame(hdev, skb); 3626} 3627 3628 3629#define QCA_DFU_PACKET_LEN 4096 3630 3631#define QCA_GET_TARGET_VERSION 0x09 3632#define QCA_CHECK_STATUS 0x05 3633#define QCA_DFU_DOWNLOAD 0x01 3634 3635#define QCA_SYSCFG_UPDATED 0x40 3636#define QCA_PATCH_UPDATED 0x80 3637#define QCA_DFU_TIMEOUT 3000 3638#define QCA_FLAG_MULTI_NVM 0x80 3639#define QCA_BT_RESET_WAIT_MS 100 3640 3641#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3642#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3643 3644struct qca_version { 3645 __le32 rom_version; 3646 __le32 patch_version; 3647 __le32 ram_version; 3648 __u8 chip_id; 3649 __u8 platform_id; 3650 __le16 flag; 3651 __u8 reserved[4]; 3652} __packed; 3653 3654struct qca_rampatch_version { 3655 __le16 rom_version_high; 3656 __le16 rom_version_low; 3657 __le16 patch_version; 3658} __packed; 3659 3660struct qca_device_info { 3661 u32 rom_version; 3662 u8 rampatch_hdr; /* length of header in rampatch */ 3663 u8 nvm_hdr; /* length of header in NVM */ 3664 u8 ver_offset; /* offset of version structure in rampatch */ 3665}; 3666 3667static const struct qca_device_info qca_devices_table[] = { 3668 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3669 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3670 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3671 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3672 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3673 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3674 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3675 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3676 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3677 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3678}; 3679 3680static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3681 void *data, u16 size) 3682{ 3683 int pipe, err; 3684 u8 *buf; 3685 3686 buf = kmalloc(size, GFP_KERNEL); 3687 if (!buf) 3688 return -ENOMEM; 3689 3690 /* Found some of USB hosts have IOT issues with ours so that we should 3691 * not wait until HCI layer is ready. 3692 */ 3693 pipe = usb_rcvctrlpipe(udev, 0); 3694 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3695 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3696 if (err < 0) { 3697 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3698 goto done; 3699 } 3700 3701 memcpy(data, buf, size); 3702 3703done: 3704 kfree(buf); 3705 3706 return err; 3707} 3708 3709static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3710 const struct firmware *firmware, 3711 size_t hdr_size) 3712{ 3713 struct btusb_data *btdata = hci_get_drvdata(hdev); 3714 struct usb_device *udev = btdata->udev; 3715 size_t count, size, sent = 0; 3716 int pipe, len, err; 3717 u8 *buf; 3718 3719 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3720 if (!buf) 3721 return -ENOMEM; 3722 3723 count = firmware->size; 3724 3725 size = min_t(size_t, count, hdr_size); 3726 memcpy(buf, firmware->data, size); 3727 3728 /* USB patches should go down to controller through USB path 3729 * because binary format fits to go down through USB channel. 3730 * USB control path is for patching headers and USB bulk is for 3731 * patch body. 3732 */ 3733 pipe = usb_sndctrlpipe(udev, 0); 3734 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3735 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3736 if (err < 0) { 3737 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3738 goto done; 3739 } 3740 3741 sent += size; 3742 count -= size; 3743 3744 /* ep2 need time to switch from function acl to function dfu, 3745 * so we add 20ms delay here. 3746 */ 3747 msleep(20); 3748 3749 while (count) { 3750 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3751 3752 memcpy(buf, firmware->data + sent, size); 3753 3754 pipe = usb_sndbulkpipe(udev, 0x02); 3755 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3756 QCA_DFU_TIMEOUT); 3757 if (err < 0) { 3758 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3759 sent, firmware->size, err); 3760 break; 3761 } 3762 3763 if (size != len) { 3764 bt_dev_err(hdev, "Failed to get bulk buffer"); 3765 err = -EILSEQ; 3766 break; 3767 } 3768 3769 sent += size; 3770 count -= size; 3771 } 3772 3773done: 3774 kfree(buf); 3775 return err; 3776} 3777 3778static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3779 struct qca_version *ver, 3780 const struct qca_device_info *info) 3781{ 3782 struct qca_rampatch_version *rver; 3783 const struct firmware *fw; 3784 u32 ver_rom, ver_patch, rver_rom; 3785 u16 rver_rom_low, rver_rom_high, rver_patch; 3786 char fwname[64]; 3787 int err; 3788 3789 ver_rom = le32_to_cpu(ver->rom_version); 3790 ver_patch = le32_to_cpu(ver->patch_version); 3791 3792 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3793 3794 err = request_firmware(&fw, fwname, &hdev->dev); 3795 if (err) { 3796 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3797 fwname, err); 3798 return err; 3799 } 3800 3801 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3802 3803 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3804 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3805 rver_patch = le16_to_cpu(rver->patch_version); 3806 3807 if (ver_rom & ~0xffffU) { 3808 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3809 rver_rom = rver_rom_high << 16 | rver_rom_low; 3810 } else { 3811 rver_rom = rver_rom_low; 3812 } 3813 3814 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3815 "firmware rome 0x%x build 0x%x", 3816 rver_rom, rver_patch, ver_rom, ver_patch); 3817 3818 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3819 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3820 err = -EINVAL; 3821 goto done; 3822 } 3823 3824 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3825 3826done: 3827 release_firmware(fw); 3828 3829 return err; 3830} 3831 3832static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3833 const struct qca_version *ver) 3834{ 3835 u32 rom_version = le32_to_cpu(ver->rom_version); 3836 u16 flag = le16_to_cpu(ver->flag); 3837 3838 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3839 /* The board_id should be split into two bytes 3840 * The 1st byte is chip ID, and the 2nd byte is platform ID 3841 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3842 * we have several platforms, and platform IDs are continuously added 3843 * Platform ID: 3844 * 0x00 is for Mobile 3845 * 0x01 is for X86 3846 * 0x02 is for Automotive 3847 * 0x03 is for Consumer electronic 3848 */ 3849 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3850 const char *variant; 3851 3852 switch (le32_to_cpu(ver->ram_version)) { 3853 case WCN6855_2_0_RAM_VERSION_GF: 3854 case WCN6855_2_1_RAM_VERSION_GF: 3855 variant = "_gf"; 3856 break; 3857 default: 3858 variant = ""; 3859 break; 3860 } 3861 3862 if (board_id == 0) { 3863 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3864 rom_version, variant); 3865 } else { 3866 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3867 rom_version, variant, board_id); 3868 } 3869 } else { 3870 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3871 rom_version); 3872 } 3873 3874} 3875 3876static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3877 struct qca_version *ver, 3878 const struct qca_device_info *info) 3879{ 3880 const struct firmware *fw; 3881 char fwname[64]; 3882 int err; 3883 3884 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3885 3886 err = request_firmware(&fw, fwname, &hdev->dev); 3887 if (err) { 3888 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3889 fwname, err); 3890 return err; 3891 } 3892 3893 bt_dev_info(hdev, "using NVM file: %s", fwname); 3894 3895 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3896 3897 release_firmware(fw); 3898 3899 return err; 3900} 3901 3902/* identify the ROM version and check whether patches are needed */ 3903static bool btusb_qca_need_patch(struct usb_device *udev) 3904{ 3905 struct qca_version ver; 3906 3907 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3908 sizeof(ver)) < 0) 3909 return false; 3910 /* only low ROM versions need patches */ 3911 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3912} 3913 3914static int btusb_setup_qca(struct hci_dev *hdev) 3915{ 3916 struct btusb_data *btdata = hci_get_drvdata(hdev); 3917 struct usb_device *udev = btdata->udev; 3918 const struct qca_device_info *info = NULL; 3919 struct qca_version ver; 3920 u32 ver_rom; 3921 u8 status; 3922 int i, err; 3923 3924 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3925 sizeof(ver)); 3926 if (err < 0) 3927 return err; 3928 3929 ver_rom = le32_to_cpu(ver.rom_version); 3930 3931 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3932 if (ver_rom == qca_devices_table[i].rom_version) 3933 info = &qca_devices_table[i]; 3934 } 3935 if (!info) { 3936 /* If the rom_version is not matched in the qca_devices_table 3937 * and the high ROM version is not zero, we assume this chip no 3938 * need to load the rampatch and nvm. 3939 */ 3940 if (ver_rom & ~0xffffU) 3941 return 0; 3942 3943 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3944 return -ENODEV; 3945 } 3946 3947 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3948 sizeof(status)); 3949 if (err < 0) 3950 return err; 3951 3952 if (!(status & QCA_PATCH_UPDATED)) { 3953 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3954 if (err < 0) 3955 return err; 3956 } 3957 3958 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3959 sizeof(ver)); 3960 if (err < 0) 3961 return err; 3962 3963 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3964 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3965 3966 if (!(status & QCA_SYSCFG_UPDATED)) { 3967 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3968 if (err < 0) 3969 return err; 3970 3971 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3972 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3973 * cause potential enable failure. 3974 */ 3975 if (info->rom_version >= 0x00130201) 3976 msleep(QCA_BT_RESET_WAIT_MS); 3977 } 3978 3979 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3980 * work with the likes of HSP/HFP mSBC. 3981 */ 3982 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3983 3984 return 0; 3985} 3986 3987static inline int __set_diag_interface(struct hci_dev *hdev) 3988{ 3989 struct btusb_data *data = hci_get_drvdata(hdev); 3990 struct usb_interface *intf = data->diag; 3991 int i; 3992 3993 if (!data->diag) 3994 return -ENODEV; 3995 3996 data->diag_tx_ep = NULL; 3997 data->diag_rx_ep = NULL; 3998 3999 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4000 struct usb_endpoint_descriptor *ep_desc; 4001 4002 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4003 4004 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4005 data->diag_tx_ep = ep_desc; 4006 continue; 4007 } 4008 4009 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4010 data->diag_rx_ep = ep_desc; 4011 continue; 4012 } 4013 } 4014 4015 if (!data->diag_tx_ep || !data->diag_rx_ep) { 4016 bt_dev_err(hdev, "invalid diagnostic descriptors"); 4017 return -ENODEV; 4018 } 4019 4020 return 0; 4021} 4022 4023static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 4024{ 4025 struct btusb_data *data = hci_get_drvdata(hdev); 4026 struct sk_buff *skb; 4027 struct urb *urb; 4028 unsigned int pipe; 4029 4030 if (!data->diag_tx_ep) 4031 return ERR_PTR(-ENODEV); 4032 4033 urb = usb_alloc_urb(0, GFP_KERNEL); 4034 if (!urb) 4035 return ERR_PTR(-ENOMEM); 4036 4037 skb = bt_skb_alloc(2, GFP_KERNEL); 4038 if (!skb) { 4039 usb_free_urb(urb); 4040 return ERR_PTR(-ENOMEM); 4041 } 4042 4043 skb_put_u8(skb, 0xf0); 4044 skb_put_u8(skb, enable); 4045 4046 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 4047 4048 usb_fill_bulk_urb(urb, data->udev, pipe, 4049 skb->data, skb->len, btusb_tx_complete, skb); 4050 4051 skb->dev = (void *)hdev; 4052 4053 return urb; 4054} 4055 4056static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 4057{ 4058 struct btusb_data *data = hci_get_drvdata(hdev); 4059 struct urb *urb; 4060 4061 if (!data->diag) 4062 return -ENODEV; 4063 4064 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4065 return -ENETDOWN; 4066 4067 urb = alloc_diag_urb(hdev, enable); 4068 if (IS_ERR(urb)) 4069 return PTR_ERR(urb); 4070 4071 return submit_or_queue_tx_urb(hdev, urb); 4072} 4073 4074#ifdef CONFIG_PM 4075static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 4076{ 4077 struct btusb_data *data = priv; 4078 4079 pm_wakeup_event(&data->udev->dev, 0); 4080 pm_system_wakeup(); 4081 4082 /* Disable only if not already disabled (keep it balanced) */ 4083 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4084 disable_irq_nosync(irq); 4085 disable_irq_wake(irq); 4086 } 4087 return IRQ_HANDLED; 4088} 4089 4090static const struct of_device_id btusb_match_table[] = { 4091 { .compatible = "usb1286,204e" }, 4092 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 4093 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 4094 { } 4095}; 4096MODULE_DEVICE_TABLE(of, btusb_match_table); 4097 4098/* Use an oob wakeup pin? */ 4099static int btusb_config_oob_wake(struct hci_dev *hdev) 4100{ 4101 struct btusb_data *data = hci_get_drvdata(hdev); 4102 struct device *dev = &data->udev->dev; 4103 int irq, ret; 4104 4105 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4106 4107 if (!of_match_device(btusb_match_table, dev)) 4108 return 0; 4109 4110 /* Move on if no IRQ specified */ 4111 irq = of_irq_get_byname(dev->of_node, "wakeup"); 4112 if (irq <= 0) { 4113 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 4114 return 0; 4115 } 4116 4117 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4118 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 4119 0, "OOB Wake-on-BT", data); 4120 if (ret) { 4121 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4122 return ret; 4123 } 4124 4125 ret = device_init_wakeup(dev, true); 4126 if (ret) { 4127 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4128 return ret; 4129 } 4130 4131 data->oob_wake_irq = irq; 4132 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4133 return 0; 4134} 4135#endif 4136 4137static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4138{ 4139 if (dmi_check_system(btusb_needs_reset_resume_table)) 4140 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4141} 4142 4143static bool btusb_wakeup(struct hci_dev *hdev) 4144{ 4145 struct btusb_data *data = hci_get_drvdata(hdev); 4146 4147 return device_may_wakeup(&data->udev->dev); 4148} 4149 4150static int btusb_shutdown_qca(struct hci_dev *hdev) 4151{ 4152 struct sk_buff *skb; 4153 4154 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 4155 if (IS_ERR(skb)) { 4156 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4157 return PTR_ERR(skb); 4158 } 4159 kfree_skb(skb); 4160 4161 return 0; 4162} 4163 4164static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4165 size_t count, loff_t *ppos) 4166{ 4167 struct btusb_data *data = file->private_data; 4168 char buf[3]; 4169 4170 buf[0] = data->poll_sync ? 'Y' : 'N'; 4171 buf[1] = '\n'; 4172 buf[2] = '\0'; 4173 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4174} 4175 4176static ssize_t force_poll_sync_write(struct file *file, 4177 const char __user *user_buf, 4178 size_t count, loff_t *ppos) 4179{ 4180 struct btusb_data *data = file->private_data; 4181 bool enable; 4182 int err; 4183 4184 err = kstrtobool_from_user(user_buf, count, &enable); 4185 if (err) 4186 return err; 4187 4188 /* Only allow changes while the adapter is down */ 4189 if (test_bit(HCI_UP, &data->hdev->flags)) 4190 return -EPERM; 4191 4192 if (data->poll_sync == enable) 4193 return -EALREADY; 4194 4195 data->poll_sync = enable; 4196 4197 return count; 4198} 4199 4200static const struct file_operations force_poll_sync_fops = { 4201 .open = simple_open, 4202 .read = force_poll_sync_read, 4203 .write = force_poll_sync_write, 4204 .llseek = default_llseek, 4205}; 4206 4207static int btusb_probe(struct usb_interface *intf, 4208 const struct usb_device_id *id) 4209{ 4210 struct usb_endpoint_descriptor *ep_desc; 4211 struct gpio_desc *reset_gpio; 4212 struct btusb_data *data; 4213 struct hci_dev *hdev; 4214 unsigned ifnum_base; 4215 int i, err, priv_size; 4216 4217 BT_DBG("intf %p id %p", intf, id); 4218 4219 if ((id->driver_info & BTUSB_IFNUM_2) && 4220 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4221 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4222 return -ENODEV; 4223 4224 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4225 4226 if (!id->driver_info) { 4227 const struct usb_device_id *match; 4228 4229 match = usb_match_id(intf, quirks_table); 4230 if (match) 4231 id = match; 4232 } 4233 4234 if (id->driver_info == BTUSB_IGNORE) 4235 return -ENODEV; 4236 4237 if (id->driver_info & BTUSB_ATH3012) { 4238 struct usb_device *udev = interface_to_usbdev(intf); 4239 4240 /* Old firmware would otherwise let ath3k driver load 4241 * patch and sysconfig files 4242 */ 4243 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4244 !btusb_qca_need_patch(udev)) 4245 return -ENODEV; 4246 } 4247 4248 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 4249 if (!data) 4250 return -ENOMEM; 4251 4252 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4253 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4254 4255 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 4256 data->intr_ep = ep_desc; 4257 continue; 4258 } 4259 4260 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4261 data->bulk_tx_ep = ep_desc; 4262 continue; 4263 } 4264 4265 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4266 data->bulk_rx_ep = ep_desc; 4267 continue; 4268 } 4269 } 4270 4271 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 4272 return -ENODEV; 4273 4274 if (id->driver_info & BTUSB_AMP) { 4275 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4276 data->cmdreq = 0x2b; 4277 } else { 4278 data->cmdreq_type = USB_TYPE_CLASS; 4279 data->cmdreq = 0x00; 4280 } 4281 4282 data->udev = interface_to_usbdev(intf); 4283 data->intf = intf; 4284 4285 INIT_WORK(&data->work, btusb_work); 4286 INIT_WORK(&data->waker, btusb_waker); 4287 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4288 4289 skb_queue_head_init(&data->acl_q); 4290 4291 init_usb_anchor(&data->deferred); 4292 init_usb_anchor(&data->tx_anchor); 4293 spin_lock_init(&data->txlock); 4294 4295 init_usb_anchor(&data->intr_anchor); 4296 init_usb_anchor(&data->bulk_anchor); 4297 init_usb_anchor(&data->isoc_anchor); 4298 init_usb_anchor(&data->diag_anchor); 4299 init_usb_anchor(&data->ctrl_anchor); 4300 spin_lock_init(&data->rxlock); 4301 4302 priv_size = 0; 4303 4304 data->recv_event = hci_recv_frame; 4305 data->recv_bulk = btusb_recv_bulk; 4306 4307 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4308 /* Allocate extra space for Intel device */ 4309 priv_size += sizeof(struct btintel_data); 4310 4311 /* Override the rx handlers */ 4312 data->recv_event = btintel_recv_event; 4313 data->recv_bulk = btusb_recv_bulk_intel; 4314 } else if (id->driver_info & BTUSB_REALTEK) { 4315 /* Allocate extra space for Realtek device */ 4316 priv_size += sizeof(struct btrealtek_data); 4317 4318 data->recv_event = btusb_recv_event_realtek; 4319 } else if (id->driver_info & BTUSB_MEDIATEK) { 4320 /* Allocate extra space for Mediatek device */ 4321 priv_size += sizeof(struct btmediatek_data); 4322 } 4323 4324 data->recv_acl = hci_recv_frame; 4325 4326 hdev = hci_alloc_dev_priv(priv_size); 4327 if (!hdev) 4328 return -ENOMEM; 4329 4330 hdev->bus = HCI_USB; 4331 hci_set_drvdata(hdev, data); 4332 4333 if (id->driver_info & BTUSB_AMP) 4334 hdev->dev_type = HCI_AMP; 4335 else 4336 hdev->dev_type = HCI_PRIMARY; 4337 4338 data->hdev = hdev; 4339 4340 SET_HCIDEV_DEV(hdev, &intf->dev); 4341 4342 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4343 GPIOD_OUT_LOW); 4344 if (IS_ERR(reset_gpio)) { 4345 err = PTR_ERR(reset_gpio); 4346 goto out_free_dev; 4347 } else if (reset_gpio) { 4348 data->reset_gpio = reset_gpio; 4349 } 4350 4351 hdev->open = btusb_open; 4352 hdev->close = btusb_close; 4353 hdev->flush = btusb_flush; 4354 hdev->send = btusb_send_frame; 4355 hdev->notify = btusb_notify; 4356 hdev->wakeup = btusb_wakeup; 4357 4358#ifdef CONFIG_PM 4359 err = btusb_config_oob_wake(hdev); 4360 if (err) 4361 goto out_free_dev; 4362 4363 /* Marvell devices may need a specific chip configuration */ 4364 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4365 err = marvell_config_oob_wake(hdev); 4366 if (err) 4367 goto out_free_dev; 4368 } 4369#endif 4370 if (id->driver_info & BTUSB_CW6622) 4371 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4372 4373 if (id->driver_info & BTUSB_BCM2045) 4374 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4375 4376 if (id->driver_info & BTUSB_BCM92035) 4377 hdev->setup = btusb_setup_bcm92035; 4378 4379 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4380 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4381 hdev->manufacturer = 15; 4382 hdev->setup = btbcm_setup_patchram; 4383 hdev->set_diag = btusb_bcm_set_diag; 4384 hdev->set_bdaddr = btbcm_set_bdaddr; 4385 4386 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4387 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4388 } 4389 4390 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4391 (id->driver_info & BTUSB_BCM_APPLE)) { 4392 hdev->manufacturer = 15; 4393 hdev->setup = btbcm_setup_apple; 4394 hdev->set_diag = btusb_bcm_set_diag; 4395 4396 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4397 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4398 } 4399 4400 /* Combined Intel Device setup to support multiple setup routine */ 4401 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4402 err = btintel_configure_setup(hdev, btusb_driver.name); 4403 if (err) 4404 goto out_free_dev; 4405 4406 /* Transport specific configuration */ 4407 hdev->send = btusb_send_frame_intel; 4408 hdev->cmd_timeout = btusb_intel_cmd_timeout; 4409 4410 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4411 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4412 4413 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4414 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4415 4416 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4417 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4418 } 4419 4420 if (id->driver_info & BTUSB_MARVELL) 4421 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4422 4423 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4424 (id->driver_info & BTUSB_MEDIATEK)) { 4425 hdev->setup = btusb_mtk_setup; 4426 hdev->shutdown = btusb_mtk_shutdown; 4427 hdev->manufacturer = 70; 4428 hdev->cmd_timeout = btmtk_reset_sync; 4429 hdev->set_bdaddr = btmtk_set_bdaddr; 4430 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4431 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4432 data->recv_acl = btusb_recv_acl_mtk; 4433 } 4434 4435 if (id->driver_info & BTUSB_SWAVE) { 4436 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4437 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4438 } 4439 4440 if (id->driver_info & BTUSB_INTEL_BOOT) { 4441 hdev->manufacturer = 2; 4442 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4443 } 4444 4445 if (id->driver_info & BTUSB_ATH3012) { 4446 data->setup_on_usb = btusb_setup_qca; 4447 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4448 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4449 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4450 } 4451 4452 if (id->driver_info & BTUSB_QCA_ROME) { 4453 data->setup_on_usb = btusb_setup_qca; 4454 hdev->shutdown = btusb_shutdown_qca; 4455 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4456 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4457 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4458 btusb_check_needs_reset_resume(intf); 4459 } 4460 4461 if (id->driver_info & BTUSB_QCA_WCN6855) { 4462 data->qca_dump.id_vendor = id->idVendor; 4463 data->qca_dump.id_product = id->idProduct; 4464 data->recv_event = btusb_recv_evt_qca; 4465 data->recv_acl = btusb_recv_acl_qca; 4466 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4467 data->setup_on_usb = btusb_setup_qca; 4468 hdev->shutdown = btusb_shutdown_qca; 4469 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4470 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4471 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4472 hci_set_msft_opcode(hdev, 0xFD70); 4473 } 4474 4475 if (id->driver_info & BTUSB_AMP) { 4476 /* AMP controllers do not support SCO packets */ 4477 data->isoc = NULL; 4478 } else { 4479 /* Interface orders are hardcoded in the specification */ 4480 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4481 data->isoc_ifnum = ifnum_base + 1; 4482 } 4483 4484 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4485 (id->driver_info & BTUSB_REALTEK)) { 4486 btrtl_set_driver_name(hdev, btusb_driver.name); 4487 hdev->setup = btusb_setup_realtek; 4488 hdev->shutdown = btrtl_shutdown_realtek; 4489 hdev->cmd_timeout = btusb_rtl_cmd_timeout; 4490 hdev->hw_error = btusb_rtl_hw_error; 4491 4492 /* Realtek devices need to set remote wakeup on auto-suspend */ 4493 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4494 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4495 } 4496 4497 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4498 /* Support is advertised, but not implemented */ 4499 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4500 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4501 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4502 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4503 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks); 4504 } 4505 4506 if (!reset) 4507 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4508 4509 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4510 if (!disable_scofix) 4511 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4512 } 4513 4514 if (id->driver_info & BTUSB_BROKEN_ISOC) 4515 data->isoc = NULL; 4516 4517 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4518 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4519 4520 if (id->driver_info & BTUSB_VALID_LE_STATES) 4521 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); 4522 4523 if (id->driver_info & BTUSB_DIGIANSWER) { 4524 data->cmdreq_type = USB_TYPE_VENDOR; 4525 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4526 } 4527 4528 if (id->driver_info & BTUSB_CSR) { 4529 struct usb_device *udev = data->udev; 4530 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4531 4532 /* Old firmware would otherwise execute USB reset */ 4533 if (bcdDevice < 0x117) 4534 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4535 4536 /* This must be set first in case we disable it for fakes */ 4537 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4538 4539 /* Fake CSR devices with broken commands */ 4540 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4541 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4542 hdev->setup = btusb_setup_csr; 4543 } 4544 4545 if (id->driver_info & BTUSB_SNIFFER) { 4546 struct usb_device *udev = data->udev; 4547 4548 /* New sniffer firmware has crippled HCI interface */ 4549 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4550 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4551 } 4552 4553 if (id->driver_info & BTUSB_INTEL_BOOT) { 4554 /* A bug in the bootloader causes that interrupt interface is 4555 * only enabled after receiving SetInterface(0, AltSetting=0). 4556 */ 4557 err = usb_set_interface(data->udev, 0, 0); 4558 if (err < 0) { 4559 BT_ERR("failed to set interface 0, alt 0 %d", err); 4560 goto out_free_dev; 4561 } 4562 } 4563 4564 if (data->isoc) { 4565 err = usb_driver_claim_interface(&btusb_driver, 4566 data->isoc, data); 4567 if (err < 0) 4568 goto out_free_dev; 4569 } 4570 4571 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4572 if (!usb_driver_claim_interface(&btusb_driver, 4573 data->diag, data)) 4574 __set_diag_interface(hdev); 4575 else 4576 data->diag = NULL; 4577 } 4578 4579 if (enable_autosuspend) 4580 usb_enable_autosuspend(data->udev); 4581 4582 data->poll_sync = enable_poll_sync; 4583 4584 err = hci_register_dev(hdev); 4585 if (err < 0) 4586 goto out_free_dev; 4587 4588 usb_set_intfdata(intf, data); 4589 4590 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4591 &force_poll_sync_fops); 4592 4593 return 0; 4594 4595out_free_dev: 4596 if (data->reset_gpio) 4597 gpiod_put(data->reset_gpio); 4598 hci_free_dev(hdev); 4599 return err; 4600} 4601 4602static void btusb_disconnect(struct usb_interface *intf) 4603{ 4604 struct btusb_data *data = usb_get_intfdata(intf); 4605 struct hci_dev *hdev; 4606 4607 BT_DBG("intf %p", intf); 4608 4609 if (!data) 4610 return; 4611 4612 hdev = data->hdev; 4613 usb_set_intfdata(data->intf, NULL); 4614 4615 if (data->isoc) 4616 usb_set_intfdata(data->isoc, NULL); 4617 4618 if (data->diag) 4619 usb_set_intfdata(data->diag, NULL); 4620 4621 hci_unregister_dev(hdev); 4622 4623 if (intf == data->intf) { 4624 if (data->isoc) 4625 usb_driver_release_interface(&btusb_driver, data->isoc); 4626 if (data->diag) 4627 usb_driver_release_interface(&btusb_driver, data->diag); 4628 } else if (intf == data->isoc) { 4629 if (data->diag) 4630 usb_driver_release_interface(&btusb_driver, data->diag); 4631 usb_driver_release_interface(&btusb_driver, data->intf); 4632 } else if (intf == data->diag) { 4633 usb_driver_release_interface(&btusb_driver, data->intf); 4634 if (data->isoc) 4635 usb_driver_release_interface(&btusb_driver, data->isoc); 4636 } 4637 4638 if (data->oob_wake_irq) 4639 device_init_wakeup(&data->udev->dev, false); 4640 4641 if (data->reset_gpio) 4642 gpiod_put(data->reset_gpio); 4643 4644 hci_free_dev(hdev); 4645} 4646 4647#ifdef CONFIG_PM 4648static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4649{ 4650 struct btusb_data *data = usb_get_intfdata(intf); 4651 4652 BT_DBG("intf %p", intf); 4653 4654 /* Don't suspend if there are connections */ 4655 if (hci_conn_count(data->hdev)) 4656 return -EBUSY; 4657 4658 if (data->suspend_count++) 4659 return 0; 4660 4661 spin_lock_irq(&data->txlock); 4662 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4663 set_bit(BTUSB_SUSPENDING, &data->flags); 4664 spin_unlock_irq(&data->txlock); 4665 } else { 4666 spin_unlock_irq(&data->txlock); 4667 data->suspend_count--; 4668 return -EBUSY; 4669 } 4670 4671 cancel_work_sync(&data->work); 4672 4673 btusb_stop_traffic(data); 4674 usb_kill_anchored_urbs(&data->tx_anchor); 4675 4676 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4677 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4678 enable_irq_wake(data->oob_wake_irq); 4679 enable_irq(data->oob_wake_irq); 4680 } 4681 4682 /* For global suspend, Realtek devices lose the loaded fw 4683 * in them. But for autosuspend, firmware should remain. 4684 * Actually, it depends on whether the usb host sends 4685 * set feature (enable wakeup) or not. 4686 */ 4687 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4688 if (PMSG_IS_AUTO(message) && 4689 device_can_wakeup(&data->udev->dev)) 4690 data->udev->do_remote_wakeup = 1; 4691 else if (!PMSG_IS_AUTO(message) && 4692 !device_may_wakeup(&data->udev->dev)) { 4693 data->udev->do_remote_wakeup = 0; 4694 data->udev->reset_resume = 1; 4695 } 4696 } 4697 4698 return 0; 4699} 4700 4701static void play_deferred(struct btusb_data *data) 4702{ 4703 struct urb *urb; 4704 int err; 4705 4706 while ((urb = usb_get_from_anchor(&data->deferred))) { 4707 usb_anchor_urb(urb, &data->tx_anchor); 4708 4709 err = usb_submit_urb(urb, GFP_ATOMIC); 4710 if (err < 0) { 4711 if (err != -EPERM && err != -ENODEV) 4712 BT_ERR("%s urb %p submission failed (%d)", 4713 data->hdev->name, urb, -err); 4714 kfree(urb->setup_packet); 4715 usb_unanchor_urb(urb); 4716 usb_free_urb(urb); 4717 break; 4718 } 4719 4720 data->tx_in_flight++; 4721 usb_free_urb(urb); 4722 } 4723 4724 /* Cleanup the rest deferred urbs. */ 4725 while ((urb = usb_get_from_anchor(&data->deferred))) { 4726 kfree(urb->setup_packet); 4727 usb_free_urb(urb); 4728 } 4729} 4730 4731static int btusb_resume(struct usb_interface *intf) 4732{ 4733 struct btusb_data *data = usb_get_intfdata(intf); 4734 struct hci_dev *hdev = data->hdev; 4735 int err = 0; 4736 4737 BT_DBG("intf %p", intf); 4738 4739 if (--data->suspend_count) 4740 return 0; 4741 4742 /* Disable only if not already disabled (keep it balanced) */ 4743 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4744 disable_irq(data->oob_wake_irq); 4745 disable_irq_wake(data->oob_wake_irq); 4746 } 4747 4748 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4749 goto done; 4750 4751 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4752 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4753 if (err < 0) { 4754 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4755 goto failed; 4756 } 4757 } 4758 4759 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4760 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4761 if (err < 0) { 4762 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4763 goto failed; 4764 } 4765 4766 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4767 } 4768 4769 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4770 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4771 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4772 else 4773 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4774 } 4775 4776 spin_lock_irq(&data->txlock); 4777 play_deferred(data); 4778 clear_bit(BTUSB_SUSPENDING, &data->flags); 4779 spin_unlock_irq(&data->txlock); 4780 schedule_work(&data->work); 4781 4782 return 0; 4783 4784failed: 4785 usb_scuttle_anchored_urbs(&data->deferred); 4786done: 4787 spin_lock_irq(&data->txlock); 4788 clear_bit(BTUSB_SUSPENDING, &data->flags); 4789 spin_unlock_irq(&data->txlock); 4790 4791 return err; 4792} 4793#endif 4794 4795#ifdef CONFIG_DEV_COREDUMP 4796static void btusb_coredump(struct device *dev) 4797{ 4798 struct btusb_data *data = dev_get_drvdata(dev); 4799 struct hci_dev *hdev = data->hdev; 4800 4801 if (hdev->dump.coredump) 4802 hdev->dump.coredump(hdev); 4803} 4804#endif 4805 4806static struct usb_driver btusb_driver = { 4807 .name = "btusb", 4808 .probe = btusb_probe, 4809 .disconnect = btusb_disconnect, 4810#ifdef CONFIG_PM 4811 .suspend = btusb_suspend, 4812 .resume = btusb_resume, 4813#endif 4814 .id_table = btusb_table, 4815 .supports_autosuspend = 1, 4816 .disable_hub_initiated_lpm = 1, 4817 4818#ifdef CONFIG_DEV_COREDUMP 4819 .driver = { 4820 .coredump = btusb_coredump, 4821 }, 4822#endif 4823}; 4824 4825module_usb_driver(btusb_driver); 4826 4827module_param(disable_scofix, bool, 0644); 4828MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4829 4830module_param(force_scofix, bool, 0644); 4831MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4832 4833module_param(enable_autosuspend, bool, 0644); 4834MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4835 4836module_param(reset, bool, 0644); 4837MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4838 4839MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4840MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4841MODULE_VERSION(VERSION); 4842MODULE_LICENSE("GPL"); 4843