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