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 25 #include "btintel.h" 26 #include "btbcm.h" 27 #include "btrtl.h" 28 #include "btmtk.h" 29 30 #define VERSION "0.8" 31 32 static bool disable_scofix; 33 static bool force_scofix; 34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 36 static bool reset = true; 37 static bool auto_isoc_alt = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTO_ISOC_ALT); 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 70 static const struct usb_device_id btusb_table[] = { 71 /* Generic Bluetooth USB device */ 72 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 73 74 /* Generic Bluetooth AMP device */ 75 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 76 77 /* Generic Bluetooth USB interface */ 78 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 79 80 /* Apple-specific (Broadcom) devices */ 81 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 82 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 83 84 /* MediaTek MT76x0E */ 85 { USB_DEVICE(0x0e8d, 0x763f) }, 86 87 /* Broadcom SoftSailing reporting vendor specific */ 88 { USB_DEVICE(0x0a5c, 0x21e1) }, 89 90 /* Apple MacBookPro 7,1 */ 91 { USB_DEVICE(0x05ac, 0x8213) }, 92 93 /* Apple iMac11,1 */ 94 { USB_DEVICE(0x05ac, 0x8215) }, 95 96 /* Apple MacBookPro6,2 */ 97 { USB_DEVICE(0x05ac, 0x8218) }, 98 99 /* Apple MacBookAir3,1, MacBookAir3,2 */ 100 { USB_DEVICE(0x05ac, 0x821b) }, 101 102 /* Apple MacBookAir4,1 */ 103 { USB_DEVICE(0x05ac, 0x821f) }, 104 105 /* Apple MacBookPro8,2 */ 106 { USB_DEVICE(0x05ac, 0x821a) }, 107 108 /* Apple MacMini5,1 */ 109 { USB_DEVICE(0x05ac, 0x8281) }, 110 111 /* AVM BlueFRITZ! USB v2.0 */ 112 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 113 114 /* Bluetooth Ultraport Module from IBM */ 115 { USB_DEVICE(0x04bf, 0x030a) }, 116 117 /* ALPS Modules with non-standard id */ 118 { USB_DEVICE(0x044e, 0x3001) }, 119 { USB_DEVICE(0x044e, 0x3002) }, 120 121 /* Ericsson with non-standard id */ 122 { USB_DEVICE(0x0bdb, 0x1002) }, 123 124 /* Canyon CN-BTU1 with HID interfaces */ 125 { USB_DEVICE(0x0c10, 0x0000) }, 126 127 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 128 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 129 130 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 131 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 132 .driver_info = BTUSB_BCM_PATCHRAM }, 133 134 /* Broadcom BCM920703 (HTC Vive) */ 135 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 136 .driver_info = BTUSB_BCM_PATCHRAM }, 137 138 /* Foxconn - Hon Hai */ 139 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 140 .driver_info = BTUSB_BCM_PATCHRAM }, 141 142 /* Lite-On Technology - Broadcom based */ 143 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 144 .driver_info = BTUSB_BCM_PATCHRAM }, 145 146 /* Broadcom devices with vendor specific id */ 147 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 148 .driver_info = BTUSB_BCM_PATCHRAM }, 149 150 /* ASUSTek Computer - Broadcom based */ 151 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 152 .driver_info = BTUSB_BCM_PATCHRAM }, 153 154 /* Belkin F8065bf - Broadcom based */ 155 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 156 .driver_info = BTUSB_BCM_PATCHRAM }, 157 158 /* IMC Networks - Broadcom based */ 159 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 160 .driver_info = BTUSB_BCM_PATCHRAM }, 161 162 /* Dell Computer - Broadcom based */ 163 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 164 .driver_info = BTUSB_BCM_PATCHRAM }, 165 166 /* Toshiba Corp - Broadcom based */ 167 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 168 .driver_info = BTUSB_BCM_PATCHRAM }, 169 170 /* Intel Bluetooth USB Bootloader (RAM module) */ 171 { USB_DEVICE(0x8087, 0x0a5a), 172 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 173 174 { } /* Terminating entry */ 175 }; 176 177 MODULE_DEVICE_TABLE(usb, btusb_table); 178 179 static const struct usb_device_id quirks_table[] = { 180 /* CSR BlueCore devices */ 181 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 182 183 /* Broadcom BCM2033 without firmware */ 184 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 185 186 /* Broadcom BCM2045 devices */ 187 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 188 189 /* Atheros 3011 with sflash firmware */ 190 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 196 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 197 198 /* Atheros AR9285 Malbec with sflash firmware */ 199 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 200 201 /* Atheros 3012 with sflash firmware */ 202 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 252 253 /* Atheros AR5BBU12 with sflash firmware */ 254 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 255 256 /* Atheros AR5BBU12 with sflash firmware */ 257 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 258 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 259 260 /* QCA ROME chipset */ 261 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 262 BTUSB_WIDEBAND_SPEECH }, 263 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 264 BTUSB_WIDEBAND_SPEECH }, 265 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 266 BTUSB_WIDEBAND_SPEECH }, 267 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 268 BTUSB_WIDEBAND_SPEECH }, 269 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 270 BTUSB_WIDEBAND_SPEECH }, 271 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 272 BTUSB_WIDEBAND_SPEECH }, 273 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 274 BTUSB_WIDEBAND_SPEECH }, 275 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 276 BTUSB_WIDEBAND_SPEECH }, 277 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 278 BTUSB_WIDEBAND_SPEECH }, 279 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 280 BTUSB_WIDEBAND_SPEECH }, 281 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 282 BTUSB_WIDEBAND_SPEECH }, 283 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 284 BTUSB_WIDEBAND_SPEECH }, 285 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 286 BTUSB_WIDEBAND_SPEECH }, 287 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 288 BTUSB_WIDEBAND_SPEECH }, 289 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 290 BTUSB_WIDEBAND_SPEECH }, 291 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 292 BTUSB_WIDEBAND_SPEECH }, 293 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 294 BTUSB_WIDEBAND_SPEECH }, 295 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 296 BTUSB_WIDEBAND_SPEECH }, 297 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 298 BTUSB_WIDEBAND_SPEECH }, 299 300 /* QCA WCN6855 chipset */ 301 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 302 BTUSB_WIDEBAND_SPEECH }, 303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 304 BTUSB_WIDEBAND_SPEECH }, 305 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 306 BTUSB_WIDEBAND_SPEECH }, 307 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 308 BTUSB_WIDEBAND_SPEECH }, 309 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 310 BTUSB_WIDEBAND_SPEECH }, 311 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 312 BTUSB_WIDEBAND_SPEECH }, 313 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 314 BTUSB_WIDEBAND_SPEECH }, 315 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH }, 317 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 318 BTUSB_WIDEBAND_SPEECH }, 319 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 320 BTUSB_WIDEBAND_SPEECH }, 321 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH }, 323 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 324 BTUSB_WIDEBAND_SPEECH }, 325 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 326 BTUSB_WIDEBAND_SPEECH }, 327 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH }, 329 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 330 BTUSB_WIDEBAND_SPEECH }, 331 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 332 BTUSB_WIDEBAND_SPEECH }, 333 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH }, 335 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 336 BTUSB_WIDEBAND_SPEECH }, 337 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 338 BTUSB_WIDEBAND_SPEECH }, 339 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH }, 341 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 342 BTUSB_WIDEBAND_SPEECH }, 343 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 344 BTUSB_WIDEBAND_SPEECH }, 345 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH }, 347 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 348 BTUSB_WIDEBAND_SPEECH }, 349 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 350 BTUSB_WIDEBAND_SPEECH }, 351 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH }, 353 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 354 BTUSB_WIDEBAND_SPEECH }, 355 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 356 BTUSB_WIDEBAND_SPEECH }, 357 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH }, 359 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 360 BTUSB_WIDEBAND_SPEECH }, 361 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 362 BTUSB_WIDEBAND_SPEECH }, 363 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH }, 365 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 366 BTUSB_WIDEBAND_SPEECH }, 367 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 368 BTUSB_WIDEBAND_SPEECH }, 369 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH }, 371 372 /* QCA WCN785x chipset */ 373 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 374 BTUSB_WIDEBAND_SPEECH }, 375 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH }, 377 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 | 378 BTUSB_WIDEBAND_SPEECH }, 379 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 | 380 BTUSB_WIDEBAND_SPEECH }, 381 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH }, 383 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 | 384 BTUSB_WIDEBAND_SPEECH }, 385 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 | 386 BTUSB_WIDEBAND_SPEECH }, 387 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 | 388 BTUSB_WIDEBAND_SPEECH }, 389 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 | 390 BTUSB_WIDEBAND_SPEECH }, 391 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 | 392 BTUSB_WIDEBAND_SPEECH }, 393 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 | 394 BTUSB_WIDEBAND_SPEECH }, 395 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 | 396 BTUSB_WIDEBAND_SPEECH }, 397 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 | 398 BTUSB_WIDEBAND_SPEECH }, 399 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH }, 401 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 | 402 BTUSB_WIDEBAND_SPEECH }, 403 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 | 404 BTUSB_WIDEBAND_SPEECH }, 405 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 | 406 BTUSB_WIDEBAND_SPEECH }, 407 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH }, 409 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 | 410 BTUSB_WIDEBAND_SPEECH }, 411 412 /* Broadcom BCM2035 */ 413 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 414 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 415 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 416 417 /* Broadcom BCM2045 */ 418 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 420 421 /* IBM/Lenovo ThinkPad with Broadcom chip */ 422 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 424 425 /* HP laptop with Broadcom chip */ 426 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 427 428 /* Dell laptop with Broadcom chip */ 429 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 430 431 /* Dell Wireless 370 and 410 devices */ 432 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 434 435 /* Belkin F8T012 and F8T013 devices */ 436 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 438 439 /* Asus WL-BTD202 device */ 440 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 441 442 /* Kensington Bluetooth USB adapter */ 443 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 444 445 /* RTX Telecom based adapters with buggy SCO support */ 446 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 447 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 448 449 /* CONWISE Technology based adapters with buggy SCO support */ 450 { USB_DEVICE(0x0e5e, 0x6622), 451 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 452 453 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 454 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 455 456 /* Digianswer devices */ 457 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 458 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 459 460 /* CSR BlueCore Bluetooth Sniffer */ 461 { USB_DEVICE(0x0a12, 0x0002), 462 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 463 464 /* Frontline ComProbe Bluetooth Sniffer */ 465 { USB_DEVICE(0x16d3, 0x0002), 466 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 467 468 /* Marvell Bluetooth devices */ 469 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 470 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 471 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 472 473 /* Intel Bluetooth devices */ 474 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 475 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 476 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 477 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 480 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 481 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 482 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 483 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED }, 484 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 485 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 486 BTUSB_INTEL_NO_WBS_SUPPORT | 487 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 489 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 490 BTUSB_INTEL_NO_WBS_SUPPORT | 491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 492 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 493 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 494 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 495 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 496 497 /* Other Intel Bluetooth devices */ 498 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 499 .driver_info = BTUSB_IGNORE }, 500 501 /* Realtek 8821CE Bluetooth devices */ 502 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 503 BTUSB_WIDEBAND_SPEECH }, 504 505 /* Realtek 8822CE Bluetooth devices */ 506 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 507 BTUSB_WIDEBAND_SPEECH }, 508 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 509 BTUSB_WIDEBAND_SPEECH }, 510 511 /* Realtek 8822CU Bluetooth devices */ 512 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 513 BTUSB_WIDEBAND_SPEECH }, 514 515 /* Realtek 8851BE Bluetooth devices */ 516 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, 517 518 /* Realtek 8852AE Bluetooth devices */ 519 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 520 BTUSB_WIDEBAND_SPEECH }, 521 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 522 BTUSB_WIDEBAND_SPEECH }, 523 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 524 BTUSB_WIDEBAND_SPEECH }, 525 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 526 BTUSB_WIDEBAND_SPEECH }, 527 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 528 BTUSB_WIDEBAND_SPEECH }, 529 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 530 BTUSB_WIDEBAND_SPEECH }, 531 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 532 BTUSB_WIDEBAND_SPEECH }, 533 534 /* Realtek 8852CE Bluetooth devices */ 535 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 536 BTUSB_WIDEBAND_SPEECH }, 537 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 538 BTUSB_WIDEBAND_SPEECH }, 539 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 540 BTUSB_WIDEBAND_SPEECH }, 541 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 542 BTUSB_WIDEBAND_SPEECH }, 543 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 544 BTUSB_WIDEBAND_SPEECH }, 545 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 546 BTUSB_WIDEBAND_SPEECH }, 547 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 548 BTUSB_WIDEBAND_SPEECH }, 549 550 /* Realtek 8852BE Bluetooth devices */ 551 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 552 BTUSB_WIDEBAND_SPEECH }, 553 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 554 BTUSB_WIDEBAND_SPEECH }, 555 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 556 BTUSB_WIDEBAND_SPEECH }, 557 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 558 BTUSB_WIDEBAND_SPEECH }, 559 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 560 BTUSB_WIDEBAND_SPEECH }, 561 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 562 BTUSB_WIDEBAND_SPEECH }, 563 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 564 BTUSB_WIDEBAND_SPEECH }, 565 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 566 BTUSB_WIDEBAND_SPEECH }, 567 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 568 BTUSB_WIDEBAND_SPEECH }, 569 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 570 BTUSB_WIDEBAND_SPEECH }, 571 572 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 573 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 574 BTUSB_WIDEBAND_SPEECH }, 575 576 /* Realtek 8922AE Bluetooth devices */ 577 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK | 578 BTUSB_WIDEBAND_SPEECH }, 579 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK | 580 BTUSB_WIDEBAND_SPEECH }, 581 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK | 582 BTUSB_WIDEBAND_SPEECH }, 583 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK | 584 BTUSB_WIDEBAND_SPEECH }, 585 586 /* Realtek Bluetooth devices */ 587 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 588 .driver_info = BTUSB_REALTEK }, 589 590 /* MediaTek Bluetooth devices */ 591 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 592 .driver_info = BTUSB_MEDIATEK | 593 BTUSB_WIDEBAND_SPEECH }, 594 595 /* Additional MediaTek MT7615E Bluetooth devices */ 596 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 597 598 /* Additional MediaTek MT7663 Bluetooth devices */ 599 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 600 BTUSB_WIDEBAND_SPEECH }, 601 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 602 BTUSB_WIDEBAND_SPEECH }, 603 604 /* Additional MediaTek MT7668 Bluetooth devices */ 605 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 606 BTUSB_WIDEBAND_SPEECH }, 607 608 /* Additional MediaTek MT7920 Bluetooth devices */ 609 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK | 610 BTUSB_WIDEBAND_SPEECH }, 611 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK | 612 BTUSB_WIDEBAND_SPEECH }, 613 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK | 614 BTUSB_WIDEBAND_SPEECH }, 615 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK | 616 BTUSB_WIDEBAND_SPEECH }, 617 618 /* Additional MediaTek MT7921 Bluetooth devices */ 619 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 620 BTUSB_WIDEBAND_SPEECH }, 621 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 622 BTUSB_WIDEBAND_SPEECH }, 623 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 624 BTUSB_WIDEBAND_SPEECH }, 625 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 626 BTUSB_WIDEBAND_SPEECH }, 627 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 628 BTUSB_WIDEBAND_SPEECH }, 629 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 630 BTUSB_WIDEBAND_SPEECH }, 631 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 632 BTUSB_WIDEBAND_SPEECH }, 633 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 634 BTUSB_WIDEBAND_SPEECH }, 635 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 636 BTUSB_WIDEBAND_SPEECH }, 637 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK | 638 BTUSB_WIDEBAND_SPEECH }, 639 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 640 BTUSB_WIDEBAND_SPEECH }, 641 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 642 BTUSB_WIDEBAND_SPEECH }, 643 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 644 BTUSB_WIDEBAND_SPEECH }, 645 646 /* MediaTek MT7922 Bluetooth devices */ 647 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 648 BTUSB_WIDEBAND_SPEECH }, 649 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK | 650 BTUSB_WIDEBAND_SPEECH }, 651 652 /* MediaTek MT7922A Bluetooth devices */ 653 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 654 BTUSB_WIDEBAND_SPEECH }, 655 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 656 BTUSB_WIDEBAND_SPEECH }, 657 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 658 BTUSB_WIDEBAND_SPEECH }, 659 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 660 BTUSB_WIDEBAND_SPEECH }, 661 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 662 BTUSB_WIDEBAND_SPEECH }, 663 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 664 BTUSB_WIDEBAND_SPEECH }, 665 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 666 BTUSB_WIDEBAND_SPEECH }, 667 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 668 BTUSB_WIDEBAND_SPEECH }, 669 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 670 BTUSB_WIDEBAND_SPEECH }, 671 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK | 672 BTUSB_WIDEBAND_SPEECH }, 673 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK | 674 BTUSB_WIDEBAND_SPEECH }, 675 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 676 BTUSB_WIDEBAND_SPEECH }, 677 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 678 BTUSB_WIDEBAND_SPEECH }, 679 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 680 BTUSB_WIDEBAND_SPEECH }, 681 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 682 BTUSB_WIDEBAND_SPEECH }, 683 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 684 BTUSB_WIDEBAND_SPEECH }, 685 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 686 BTUSB_WIDEBAND_SPEECH }, 687 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 688 BTUSB_WIDEBAND_SPEECH }, 689 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 690 BTUSB_WIDEBAND_SPEECH }, 691 692 /* Additional MediaTek MT7925 Bluetooth devices */ 693 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 694 BTUSB_WIDEBAND_SPEECH }, 695 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 696 BTUSB_WIDEBAND_SPEECH }, 697 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK | 698 BTUSB_WIDEBAND_SPEECH }, 699 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK | 700 BTUSB_WIDEBAND_SPEECH }, 701 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK | 702 BTUSB_WIDEBAND_SPEECH }, 703 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK | 704 BTUSB_WIDEBAND_SPEECH }, 705 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK | 706 BTUSB_WIDEBAND_SPEECH }, 707 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK | 708 BTUSB_WIDEBAND_SPEECH }, 709 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK | 710 BTUSB_WIDEBAND_SPEECH }, 711 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 712 BTUSB_WIDEBAND_SPEECH }, 713 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 714 BTUSB_WIDEBAND_SPEECH }, 715 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK | 716 BTUSB_WIDEBAND_SPEECH }, 717 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK | 718 BTUSB_WIDEBAND_SPEECH }, 719 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK | 720 BTUSB_WIDEBAND_SPEECH }, 721 722 /* Additional Realtek 8723AE Bluetooth devices */ 723 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 724 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 725 726 /* Additional Realtek 8723BE Bluetooth devices */ 727 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 728 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 729 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 730 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 731 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 732 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 733 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 734 735 /* Additional Realtek 8723BU Bluetooth devices */ 736 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 737 738 /* Additional Realtek 8723DE Bluetooth devices */ 739 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 740 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 741 742 /* Additional Realtek 8761BUV Bluetooth devices */ 743 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 744 BTUSB_WIDEBAND_SPEECH }, 745 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 746 BTUSB_WIDEBAND_SPEECH }, 747 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 748 BTUSB_WIDEBAND_SPEECH }, 749 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 750 BTUSB_WIDEBAND_SPEECH }, 751 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 752 BTUSB_WIDEBAND_SPEECH }, 753 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 754 BTUSB_WIDEBAND_SPEECH }, 755 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 756 BTUSB_WIDEBAND_SPEECH }, 757 758 /* Additional Realtek 8821AE Bluetooth devices */ 759 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 760 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 761 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 762 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 763 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 764 765 /* Additional Realtek 8822BE Bluetooth devices */ 766 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 767 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 768 769 /* Additional Realtek 8822CE Bluetooth devices */ 770 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 771 BTUSB_WIDEBAND_SPEECH }, 772 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 773 BTUSB_WIDEBAND_SPEECH }, 774 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 775 BTUSB_WIDEBAND_SPEECH }, 776 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 777 BTUSB_WIDEBAND_SPEECH }, 778 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 779 BTUSB_WIDEBAND_SPEECH }, 780 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 781 BTUSB_WIDEBAND_SPEECH }, 782 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 783 BTUSB_WIDEBAND_SPEECH }, 784 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 785 BTUSB_WIDEBAND_SPEECH }, 786 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 787 BTUSB_WIDEBAND_SPEECH }, 788 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 789 BTUSB_WIDEBAND_SPEECH }, 790 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 791 BTUSB_WIDEBAND_SPEECH }, 792 793 /* Actions Semiconductor ATS2851 based devices */ 794 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 795 796 /* Silicon Wave based devices */ 797 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 798 799 { } /* Terminating entry */ 800 }; 801 802 /* The Bluetooth USB module build into some devices needs to be reset on resume, 803 * this is a problem with the platform (likely shutting off all power) not with 804 * the module itself. So we use a DMI list to match known broken platforms. 805 */ 806 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 807 { 808 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 809 .matches = { 810 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 811 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 812 }, 813 }, 814 { 815 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 816 .matches = { 817 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 818 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 819 }, 820 }, 821 { 822 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 823 .matches = { 824 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 825 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 826 }, 827 }, 828 {} 829 }; 830 831 struct qca_dump_info { 832 /* fields for dump collection */ 833 u16 id_vendor; 834 u16 id_product; 835 u32 fw_version; 836 u32 controller_id; 837 u32 ram_dump_size; 838 u16 ram_dump_seqno; 839 }; 840 841 #define BTUSB_MAX_ISOC_FRAMES 10 842 843 #define BTUSB_INTR_RUNNING 0 844 #define BTUSB_BULK_RUNNING 1 845 #define BTUSB_ISOC_RUNNING 2 846 #define BTUSB_SUSPENDING 3 847 #define BTUSB_DID_ISO_RESUME 4 848 #define BTUSB_BOOTLOADER 5 849 #define BTUSB_DOWNLOADING 6 850 #define BTUSB_FIRMWARE_LOADED 7 851 #define BTUSB_FIRMWARE_FAILED 8 852 #define BTUSB_BOOTING 9 853 #define BTUSB_DIAG_RUNNING 10 854 #define BTUSB_OOB_WAKE_ENABLED 11 855 #define BTUSB_HW_RESET_ACTIVE 12 856 #define BTUSB_TX_WAIT_VND_EVT 13 857 #define BTUSB_WAKEUP_AUTOSUSPEND 14 858 #define BTUSB_USE_ALT3_FOR_WBS 15 859 #define BTUSB_ALT6_CONTINUOUS_TX 16 860 #define BTUSB_HW_SSR_ACTIVE 17 861 862 struct btusb_data { 863 struct hci_dev *hdev; 864 struct usb_device *udev; 865 struct usb_interface *intf; 866 struct usb_interface *isoc; 867 struct usb_interface *diag; 868 unsigned isoc_ifnum; 869 870 unsigned long flags; 871 872 bool poll_sync; 873 int intr_interval; 874 struct work_struct work; 875 struct work_struct waker; 876 struct delayed_work rx_work; 877 878 struct sk_buff_head acl_q; 879 880 struct usb_anchor deferred; 881 struct usb_anchor tx_anchor; 882 int tx_in_flight; 883 spinlock_t txlock; 884 885 struct usb_anchor intr_anchor; 886 struct usb_anchor bulk_anchor; 887 struct usb_anchor isoc_anchor; 888 struct usb_anchor diag_anchor; 889 struct usb_anchor ctrl_anchor; 890 spinlock_t rxlock; 891 892 struct sk_buff *evt_skb; 893 struct sk_buff *acl_skb; 894 struct sk_buff *sco_skb; 895 896 struct usb_endpoint_descriptor *intr_ep; 897 struct usb_endpoint_descriptor *bulk_tx_ep; 898 struct usb_endpoint_descriptor *bulk_rx_ep; 899 struct usb_endpoint_descriptor *isoc_tx_ep; 900 struct usb_endpoint_descriptor *isoc_rx_ep; 901 struct usb_endpoint_descriptor *diag_tx_ep; 902 struct usb_endpoint_descriptor *diag_rx_ep; 903 904 struct gpio_desc *reset_gpio; 905 906 __u8 cmdreq_type; 907 __u8 cmdreq; 908 909 unsigned int sco_num; 910 unsigned int air_mode; 911 bool usb_alt6_packet_flow; 912 int isoc_altsetting; 913 int suspend_count; 914 915 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 916 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 917 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 918 919 int (*setup_on_usb)(struct hci_dev *hdev); 920 921 int (*suspend)(struct hci_dev *hdev); 922 int (*resume)(struct hci_dev *hdev); 923 int (*disconnect)(struct hci_dev *hdev); 924 925 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 926 927 struct qca_dump_info qca_dump; 928 }; 929 930 static void btusb_reset(struct hci_dev *hdev) 931 { 932 struct btusb_data *data; 933 int err; 934 935 data = hci_get_drvdata(hdev); 936 /* This is not an unbalanced PM reference since the device will reset */ 937 err = usb_autopm_get_interface(data->intf); 938 if (err) { 939 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 940 return; 941 } 942 943 bt_dev_err(hdev, "Resetting usb device."); 944 usb_queue_reset_device(data->intf); 945 } 946 947 static void btusb_intel_reset(struct hci_dev *hdev) 948 { 949 struct btusb_data *data = hci_get_drvdata(hdev); 950 struct gpio_desc *reset_gpio = data->reset_gpio; 951 struct btintel_data *intel_data = hci_get_priv(hdev); 952 953 if (intel_data->acpi_reset_method) { 954 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 955 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 956 return; 957 } 958 959 bt_dev_err(hdev, "Initiating acpi reset method"); 960 /* If ACPI reset method fails, lets try with legacy GPIO 961 * toggling 962 */ 963 if (!intel_data->acpi_reset_method(hdev)) { 964 return; 965 } 966 } 967 968 if (!reset_gpio) { 969 btusb_reset(hdev); 970 return; 971 } 972 973 /* 974 * Toggle the hard reset line if the platform provides one. The reset 975 * is going to yank the device off the USB and then replug. So doing 976 * once is enough. The cleanup is handled correctly on the way out 977 * (standard USB disconnect), and the new device is detected cleanly 978 * and bound to the driver again like it should be. 979 */ 980 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 981 bt_dev_err(hdev, "last reset failed? Not resetting again"); 982 return; 983 } 984 985 bt_dev_err(hdev, "Initiating HW reset via gpio"); 986 gpiod_set_value_cansleep(reset_gpio, 1); 987 msleep(100); 988 gpiod_set_value_cansleep(reset_gpio, 0); 989 } 990 991 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 992 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 993 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 994 995 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 996 997 struct rtk_dev_coredump_hdr { 998 u8 type; 999 u8 code; 1000 u8 reserved[2]; 1001 } __packed; 1002 1003 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 1004 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 1005 { 1006 struct sk_buff *skb; 1007 1008 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 1009 if (!skb) 1010 return; 1011 1012 skb_put_data(skb, hdr, sizeof(*hdr)); 1013 if (len) 1014 skb_put_data(skb, buf, len); 1015 1016 if (!hci_devcd_init(hdev, skb->len)) { 1017 hci_devcd_append(hdev, skb); 1018 hci_devcd_complete(hdev); 1019 } else { 1020 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 1021 kfree_skb(skb); 1022 } 1023 } 1024 1025 static void btusb_rtl_reset(struct hci_dev *hdev) 1026 { 1027 struct btusb_data *data = hci_get_drvdata(hdev); 1028 struct gpio_desc *reset_gpio = data->reset_gpio; 1029 struct rtk_dev_coredump_hdr hdr = { 1030 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1031 }; 1032 1033 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1034 1035 if (!reset_gpio) { 1036 btusb_reset(hdev); 1037 return; 1038 } 1039 1040 /* Toggle the hard reset line. The Realtek device is going to 1041 * yank itself off the USB and then replug. The cleanup is handled 1042 * correctly on the way out (standard USB disconnect), and the new 1043 * device is detected cleanly and bound to the driver again like 1044 * it should be. 1045 */ 1046 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1047 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1048 return; 1049 } 1050 1051 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1052 gpiod_set_value_cansleep(reset_gpio, 1); 1053 msleep(200); 1054 gpiod_set_value_cansleep(reset_gpio, 0); 1055 } 1056 1057 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1058 { 1059 struct rtk_dev_coredump_hdr hdr = { 1060 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1061 .code = code, 1062 }; 1063 1064 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1065 1066 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1067 } 1068 1069 static void btusb_qca_reset(struct hci_dev *hdev) 1070 { 1071 struct btusb_data *data = hci_get_drvdata(hdev); 1072 struct gpio_desc *reset_gpio = data->reset_gpio; 1073 1074 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1075 bt_dev_info(hdev, "Ramdump in progress, defer reset"); 1076 return; 1077 } 1078 1079 if (reset_gpio) { 1080 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1081 1082 /* Toggle the hard reset line. The qca bt device is going to 1083 * yank itself off the USB and then replug. The cleanup is handled 1084 * correctly on the way out (standard USB disconnect), and the new 1085 * device is detected cleanly and bound to the driver again like 1086 * it should be. 1087 */ 1088 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1089 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1090 return; 1091 } 1092 1093 gpiod_set_value_cansleep(reset_gpio, 0); 1094 msleep(200); 1095 gpiod_set_value_cansleep(reset_gpio, 1); 1096 1097 return; 1098 } 1099 1100 btusb_reset(hdev); 1101 } 1102 1103 static inline void btusb_free_frags(struct btusb_data *data) 1104 { 1105 unsigned long flags; 1106 1107 spin_lock_irqsave(&data->rxlock, flags); 1108 1109 dev_kfree_skb_irq(data->evt_skb); 1110 data->evt_skb = NULL; 1111 1112 dev_kfree_skb_irq(data->acl_skb); 1113 data->acl_skb = NULL; 1114 1115 dev_kfree_skb_irq(data->sco_skb); 1116 data->sco_skb = NULL; 1117 1118 spin_unlock_irqrestore(&data->rxlock, flags); 1119 } 1120 1121 static void btusb_sco_connected(struct btusb_data *data, struct sk_buff *skb) 1122 { 1123 struct hci_event_hdr *hdr = (void *) skb->data; 1124 struct hci_ev_sync_conn_complete *ev = 1125 (void *) skb->data + sizeof(*hdr); 1126 struct hci_dev *hdev = data->hdev; 1127 unsigned int notify_air_mode; 1128 1129 if (hci_skb_pkt_type(skb) != HCI_EVENT_PKT) 1130 return; 1131 1132 if (skb->len < sizeof(*hdr) || hdr->evt != HCI_EV_SYNC_CONN_COMPLETE) 1133 return; 1134 1135 if (skb->len != sizeof(*hdr) + sizeof(*ev) || ev->status) 1136 return; 1137 1138 switch (ev->air_mode) { 1139 case BT_CODEC_CVSD: 1140 notify_air_mode = HCI_NOTIFY_ENABLE_SCO_CVSD; 1141 break; 1142 1143 case BT_CODEC_TRANSPARENT: 1144 notify_air_mode = HCI_NOTIFY_ENABLE_SCO_TRANSP; 1145 break; 1146 1147 default: 1148 return; 1149 } 1150 1151 bt_dev_info(hdev, "enabling SCO with air mode %u", ev->air_mode); 1152 data->sco_num = 1; 1153 data->air_mode = notify_air_mode; 1154 schedule_work(&data->work); 1155 } 1156 1157 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1158 { 1159 if (data->intr_interval) { 1160 /* Trigger dequeue immediately if an event is received */ 1161 schedule_delayed_work(&data->rx_work, 0); 1162 } 1163 1164 /* Configure altsetting for HCI_USER_CHANNEL on SCO connected */ 1165 if (auto_isoc_alt && hci_dev_test_flag(data->hdev, HCI_USER_CHANNEL)) 1166 btusb_sco_connected(data, skb); 1167 1168 return data->recv_event(data->hdev, skb); 1169 } 1170 1171 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1172 { 1173 struct sk_buff *skb; 1174 unsigned long flags; 1175 int err = 0; 1176 1177 spin_lock_irqsave(&data->rxlock, flags); 1178 skb = data->evt_skb; 1179 1180 while (count) { 1181 int len; 1182 1183 if (!skb) { 1184 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1185 if (!skb) { 1186 err = -ENOMEM; 1187 break; 1188 } 1189 1190 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1191 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1192 } 1193 1194 len = min_t(uint, hci_skb_expect(skb), count); 1195 skb_put_data(skb, buffer, len); 1196 1197 count -= len; 1198 buffer += len; 1199 hci_skb_expect(skb) -= len; 1200 1201 if (skb->len == HCI_EVENT_HDR_SIZE) { 1202 /* Complete event header */ 1203 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1204 1205 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1206 kfree_skb(skb); 1207 skb = NULL; 1208 1209 err = -EILSEQ; 1210 break; 1211 } 1212 } 1213 1214 if (!hci_skb_expect(skb)) { 1215 /* Complete frame */ 1216 btusb_recv_event(data, skb); 1217 skb = NULL; 1218 } 1219 } 1220 1221 data->evt_skb = skb; 1222 spin_unlock_irqrestore(&data->rxlock, flags); 1223 1224 return err; 1225 } 1226 1227 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1228 { 1229 /* Only queue ACL packet if intr_interval is set as it means 1230 * force_poll_sync has been enabled. 1231 */ 1232 if (!data->intr_interval) 1233 return data->recv_acl(data->hdev, skb); 1234 1235 skb_queue_tail(&data->acl_q, skb); 1236 schedule_delayed_work(&data->rx_work, data->intr_interval); 1237 1238 return 0; 1239 } 1240 1241 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1242 { 1243 struct sk_buff *skb; 1244 unsigned long flags; 1245 int err = 0; 1246 1247 spin_lock_irqsave(&data->rxlock, flags); 1248 skb = data->acl_skb; 1249 1250 while (count) { 1251 int len; 1252 1253 if (!skb) { 1254 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1255 if (!skb) { 1256 err = -ENOMEM; 1257 break; 1258 } 1259 1260 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1261 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1262 } 1263 1264 len = min_t(uint, hci_skb_expect(skb), count); 1265 skb_put_data(skb, buffer, len); 1266 1267 count -= len; 1268 buffer += len; 1269 hci_skb_expect(skb) -= len; 1270 1271 if (skb->len == HCI_ACL_HDR_SIZE) { 1272 __le16 dlen = hci_acl_hdr(skb)->dlen; 1273 1274 /* Complete ACL header */ 1275 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1276 1277 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1278 kfree_skb(skb); 1279 skb = NULL; 1280 1281 err = -EILSEQ; 1282 break; 1283 } 1284 } 1285 1286 if (!hci_skb_expect(skb)) { 1287 /* Complete frame */ 1288 btusb_recv_acl(data, skb); 1289 skb = NULL; 1290 } 1291 } 1292 1293 data->acl_skb = skb; 1294 spin_unlock_irqrestore(&data->rxlock, flags); 1295 1296 return err; 1297 } 1298 1299 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1300 struct hci_sco_hdr *hdr) 1301 { 1302 __u16 handle; 1303 1304 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1305 // Can't validate, userspace controls everything. 1306 return true; 1307 1308 /* 1309 * USB isochronous transfers are not designed to be reliable and may 1310 * lose fragments. When this happens, the next first fragment 1311 * encountered might actually be a continuation fragment. 1312 * Validate the handle to detect it and drop it, or else the upper 1313 * layer will get garbage for a while. 1314 */ 1315 1316 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1317 1318 switch (hci_conn_lookup_type(hdev, handle)) { 1319 case SCO_LINK: 1320 case ESCO_LINK: 1321 return true; 1322 default: 1323 return false; 1324 } 1325 } 1326 1327 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1328 { 1329 struct sk_buff *skb; 1330 unsigned long flags; 1331 int err = 0; 1332 1333 spin_lock_irqsave(&data->rxlock, flags); 1334 skb = data->sco_skb; 1335 1336 while (count) { 1337 int len; 1338 1339 if (!skb) { 1340 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1341 if (!skb) { 1342 err = -ENOMEM; 1343 break; 1344 } 1345 1346 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1347 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1348 } 1349 1350 len = min_t(uint, hci_skb_expect(skb), count); 1351 skb_put_data(skb, buffer, len); 1352 1353 count -= len; 1354 buffer += len; 1355 hci_skb_expect(skb) -= len; 1356 1357 if (skb->len == HCI_SCO_HDR_SIZE) { 1358 /* Complete SCO header */ 1359 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1360 1361 hci_skb_expect(skb) = hdr->dlen; 1362 1363 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1364 !btusb_validate_sco_handle(data->hdev, hdr)) { 1365 kfree_skb(skb); 1366 skb = NULL; 1367 1368 err = -EILSEQ; 1369 break; 1370 } 1371 } 1372 1373 if (!hci_skb_expect(skb)) { 1374 /* Complete frame */ 1375 hci_recv_frame(data->hdev, skb); 1376 skb = NULL; 1377 } 1378 } 1379 1380 data->sco_skb = skb; 1381 spin_unlock_irqrestore(&data->rxlock, flags); 1382 1383 return err; 1384 } 1385 1386 static void btusb_intr_complete(struct urb *urb) 1387 { 1388 struct hci_dev *hdev = urb->context; 1389 struct btusb_data *data = hci_get_drvdata(hdev); 1390 int err; 1391 1392 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1393 urb->actual_length); 1394 1395 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1396 return; 1397 1398 if (urb->status == 0) { 1399 hdev->stat.byte_rx += urb->actual_length; 1400 1401 if (btusb_recv_intr(data, urb->transfer_buffer, 1402 urb->actual_length) < 0) { 1403 bt_dev_err(hdev, "corrupted event packet"); 1404 hdev->stat.err_rx++; 1405 } 1406 } else if (urb->status == -ENOENT) { 1407 /* Avoid suspend failed when usb_kill_urb */ 1408 return; 1409 } 1410 1411 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1412 return; 1413 1414 usb_mark_last_busy(data->udev); 1415 usb_anchor_urb(urb, &data->intr_anchor); 1416 1417 err = usb_submit_urb(urb, GFP_ATOMIC); 1418 if (err < 0) { 1419 /* -EPERM: urb is being killed; 1420 * -ENODEV: device got disconnected 1421 */ 1422 if (err != -EPERM && err != -ENODEV) 1423 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1424 urb, -err); 1425 if (err != -EPERM) 1426 hci_cmd_sync_cancel(hdev, -err); 1427 usb_unanchor_urb(urb); 1428 } 1429 } 1430 1431 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1432 { 1433 struct btusb_data *data = hci_get_drvdata(hdev); 1434 struct urb *urb; 1435 unsigned char *buf; 1436 unsigned int pipe; 1437 int err, size; 1438 1439 BT_DBG("%s", hdev->name); 1440 1441 if (!data->intr_ep) 1442 return -ENODEV; 1443 1444 urb = usb_alloc_urb(0, mem_flags); 1445 if (!urb) 1446 return -ENOMEM; 1447 1448 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1449 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1450 /* Fake CSR devices don't seem to support sort-transter */ 1451 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1452 else 1453 /* Use maximum HCI Event size so the USB stack handles 1454 * ZPL/short-transfer automatically. 1455 */ 1456 size = HCI_MAX_EVENT_SIZE; 1457 1458 buf = kmalloc(size, mem_flags); 1459 if (!buf) { 1460 usb_free_urb(urb); 1461 return -ENOMEM; 1462 } 1463 1464 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1465 1466 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1467 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1468 1469 urb->transfer_flags |= URB_FREE_BUFFER; 1470 1471 usb_anchor_urb(urb, &data->intr_anchor); 1472 1473 err = usb_submit_urb(urb, mem_flags); 1474 if (err < 0) { 1475 if (err != -EPERM && err != -ENODEV) 1476 bt_dev_err(hdev, "urb %p submission failed (%d)", 1477 urb, -err); 1478 if (err != -EPERM) 1479 hci_cmd_sync_cancel(hdev, -err); 1480 usb_unanchor_urb(urb); 1481 } 1482 1483 /* Only initialize intr_interval if URB poll sync is enabled */ 1484 if (!data->poll_sync) 1485 goto done; 1486 1487 /* The units are frames (milliseconds) for full and low speed devices, 1488 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1489 * devices. 1490 * 1491 * This is done once on open/resume so it shouldn't change even if 1492 * force_poll_sync changes. 1493 */ 1494 switch (urb->dev->speed) { 1495 case USB_SPEED_SUPER_PLUS: 1496 case USB_SPEED_SUPER: /* units are 125us */ 1497 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1498 break; 1499 default: 1500 data->intr_interval = msecs_to_jiffies(urb->interval); 1501 break; 1502 } 1503 1504 done: 1505 usb_free_urb(urb); 1506 1507 return err; 1508 } 1509 1510 static void btusb_bulk_complete(struct urb *urb) 1511 { 1512 struct hci_dev *hdev = urb->context; 1513 struct btusb_data *data = hci_get_drvdata(hdev); 1514 int err; 1515 1516 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1517 urb->actual_length); 1518 1519 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1520 return; 1521 1522 if (urb->status == 0) { 1523 hdev->stat.byte_rx += urb->actual_length; 1524 1525 if (data->recv_bulk(data, urb->transfer_buffer, 1526 urb->actual_length) < 0) { 1527 bt_dev_err(hdev, "corrupted ACL packet"); 1528 hdev->stat.err_rx++; 1529 } 1530 } else if (urb->status == -ENOENT) { 1531 /* Avoid suspend failed when usb_kill_urb */ 1532 return; 1533 } 1534 1535 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1536 return; 1537 1538 usb_anchor_urb(urb, &data->bulk_anchor); 1539 usb_mark_last_busy(data->udev); 1540 1541 err = usb_submit_urb(urb, GFP_ATOMIC); 1542 if (err < 0) { 1543 /* -EPERM: urb is being killed; 1544 * -ENODEV: device got disconnected 1545 */ 1546 if (err != -EPERM && err != -ENODEV) 1547 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1548 urb, -err); 1549 usb_unanchor_urb(urb); 1550 } 1551 } 1552 1553 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1554 { 1555 struct btusb_data *data = hci_get_drvdata(hdev); 1556 struct urb *urb; 1557 unsigned char *buf; 1558 unsigned int pipe; 1559 int err, size = HCI_MAX_FRAME_SIZE; 1560 1561 BT_DBG("%s", hdev->name); 1562 1563 if (!data->bulk_rx_ep) 1564 return -ENODEV; 1565 1566 urb = usb_alloc_urb(0, mem_flags); 1567 if (!urb) 1568 return -ENOMEM; 1569 1570 buf = kmalloc(size, mem_flags); 1571 if (!buf) { 1572 usb_free_urb(urb); 1573 return -ENOMEM; 1574 } 1575 1576 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1577 1578 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1579 btusb_bulk_complete, hdev); 1580 1581 urb->transfer_flags |= URB_FREE_BUFFER; 1582 1583 usb_mark_last_busy(data->udev); 1584 usb_anchor_urb(urb, &data->bulk_anchor); 1585 1586 err = usb_submit_urb(urb, mem_flags); 1587 if (err < 0) { 1588 if (err != -EPERM && err != -ENODEV) 1589 bt_dev_err(hdev, "urb %p submission failed (%d)", 1590 urb, -err); 1591 usb_unanchor_urb(urb); 1592 } 1593 1594 usb_free_urb(urb); 1595 1596 return err; 1597 } 1598 1599 static void btusb_isoc_complete(struct urb *urb) 1600 { 1601 struct hci_dev *hdev = urb->context; 1602 struct btusb_data *data = hci_get_drvdata(hdev); 1603 int i, err; 1604 1605 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1606 urb->actual_length); 1607 1608 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1609 return; 1610 1611 if (urb->status == 0) { 1612 for (i = 0; i < urb->number_of_packets; i++) { 1613 unsigned int offset = urb->iso_frame_desc[i].offset; 1614 unsigned int length = urb->iso_frame_desc[i].actual_length; 1615 1616 if (urb->iso_frame_desc[i].status) 1617 continue; 1618 1619 hdev->stat.byte_rx += length; 1620 1621 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1622 length) < 0) { 1623 bt_dev_err(hdev, "corrupted SCO packet"); 1624 hdev->stat.err_rx++; 1625 } 1626 } 1627 } else if (urb->status == -ENOENT) { 1628 /* Avoid suspend failed when usb_kill_urb */ 1629 return; 1630 } 1631 1632 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1633 return; 1634 1635 usb_anchor_urb(urb, &data->isoc_anchor); 1636 1637 err = usb_submit_urb(urb, GFP_ATOMIC); 1638 if (err < 0) { 1639 /* -EPERM: urb is being killed; 1640 * -ENODEV: device got disconnected 1641 */ 1642 if (err != -EPERM && err != -ENODEV) 1643 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1644 urb, -err); 1645 usb_unanchor_urb(urb); 1646 } 1647 } 1648 1649 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1650 int mtu, struct btusb_data *data) 1651 { 1652 int i = 0, offset = 0; 1653 unsigned int interval; 1654 1655 BT_DBG("len %d mtu %d", len, mtu); 1656 1657 /* For mSBC ALT 6 settings some chips need to transmit the data 1658 * continuously without the zero length of USB packets. 1659 */ 1660 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1661 goto ignore_usb_alt6_packet_flow; 1662 1663 /* For mSBC ALT 6 setting the host will send the packet at continuous 1664 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1665 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1666 * To maintain the rate we send 63bytes of usb packets alternatively for 1667 * 7ms and 8ms to maintain the rate as 7.5ms. 1668 */ 1669 if (data->usb_alt6_packet_flow) { 1670 interval = 7; 1671 data->usb_alt6_packet_flow = false; 1672 } else { 1673 interval = 6; 1674 data->usb_alt6_packet_flow = true; 1675 } 1676 1677 for (i = 0; i < interval; i++) { 1678 urb->iso_frame_desc[i].offset = offset; 1679 urb->iso_frame_desc[i].length = offset; 1680 } 1681 1682 ignore_usb_alt6_packet_flow: 1683 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1684 urb->iso_frame_desc[i].offset = offset; 1685 urb->iso_frame_desc[i].length = len; 1686 i++; 1687 } 1688 1689 urb->number_of_packets = i; 1690 } 1691 1692 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1693 { 1694 int i, offset = 0; 1695 1696 BT_DBG("len %d mtu %d", len, mtu); 1697 1698 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1699 i++, offset += mtu, len -= mtu) { 1700 urb->iso_frame_desc[i].offset = offset; 1701 urb->iso_frame_desc[i].length = mtu; 1702 } 1703 1704 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1705 urb->iso_frame_desc[i].offset = offset; 1706 urb->iso_frame_desc[i].length = len; 1707 i++; 1708 } 1709 1710 urb->number_of_packets = i; 1711 } 1712 1713 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1714 { 1715 struct btusb_data *data = hci_get_drvdata(hdev); 1716 struct urb *urb; 1717 unsigned char *buf; 1718 unsigned int pipe; 1719 int err, size; 1720 1721 BT_DBG("%s", hdev->name); 1722 1723 if (!data->isoc_rx_ep) 1724 return -ENODEV; 1725 1726 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1727 if (!urb) 1728 return -ENOMEM; 1729 1730 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1731 BTUSB_MAX_ISOC_FRAMES; 1732 1733 buf = kmalloc(size, mem_flags); 1734 if (!buf) { 1735 usb_free_urb(urb); 1736 return -ENOMEM; 1737 } 1738 1739 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1740 1741 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1742 hdev, data->isoc_rx_ep->bInterval); 1743 1744 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1745 1746 __fill_isoc_descriptor(urb, size, 1747 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1748 1749 usb_anchor_urb(urb, &data->isoc_anchor); 1750 1751 err = usb_submit_urb(urb, mem_flags); 1752 if (err < 0) { 1753 if (err != -EPERM && err != -ENODEV) 1754 bt_dev_err(hdev, "urb %p submission failed (%d)", 1755 urb, -err); 1756 usb_unanchor_urb(urb); 1757 } 1758 1759 usb_free_urb(urb); 1760 1761 return err; 1762 } 1763 1764 static void btusb_diag_complete(struct urb *urb) 1765 { 1766 struct hci_dev *hdev = urb->context; 1767 struct btusb_data *data = hci_get_drvdata(hdev); 1768 int err; 1769 1770 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1771 urb->actual_length); 1772 1773 if (urb->status == 0) { 1774 struct sk_buff *skb; 1775 1776 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1777 if (skb) { 1778 skb_put_data(skb, urb->transfer_buffer, 1779 urb->actual_length); 1780 hci_recv_diag(hdev, skb); 1781 } 1782 } else if (urb->status == -ENOENT) { 1783 /* Avoid suspend failed when usb_kill_urb */ 1784 return; 1785 } 1786 1787 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1788 return; 1789 1790 usb_anchor_urb(urb, &data->diag_anchor); 1791 usb_mark_last_busy(data->udev); 1792 1793 err = usb_submit_urb(urb, GFP_ATOMIC); 1794 if (err < 0) { 1795 /* -EPERM: urb is being killed; 1796 * -ENODEV: device got disconnected 1797 */ 1798 if (err != -EPERM && err != -ENODEV) 1799 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1800 urb, -err); 1801 usb_unanchor_urb(urb); 1802 } 1803 } 1804 1805 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1806 { 1807 struct btusb_data *data = hci_get_drvdata(hdev); 1808 struct urb *urb; 1809 unsigned char *buf; 1810 unsigned int pipe; 1811 int err, size = HCI_MAX_FRAME_SIZE; 1812 1813 BT_DBG("%s", hdev->name); 1814 1815 if (!data->diag_rx_ep) 1816 return -ENODEV; 1817 1818 urb = usb_alloc_urb(0, mem_flags); 1819 if (!urb) 1820 return -ENOMEM; 1821 1822 buf = kmalloc(size, mem_flags); 1823 if (!buf) { 1824 usb_free_urb(urb); 1825 return -ENOMEM; 1826 } 1827 1828 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1829 1830 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1831 btusb_diag_complete, hdev); 1832 1833 urb->transfer_flags |= URB_FREE_BUFFER; 1834 1835 usb_mark_last_busy(data->udev); 1836 usb_anchor_urb(urb, &data->diag_anchor); 1837 1838 err = usb_submit_urb(urb, mem_flags); 1839 if (err < 0) { 1840 if (err != -EPERM && err != -ENODEV) 1841 bt_dev_err(hdev, "urb %p submission failed (%d)", 1842 urb, -err); 1843 usb_unanchor_urb(urb); 1844 } 1845 1846 usb_free_urb(urb); 1847 1848 return err; 1849 } 1850 1851 static void btusb_tx_complete(struct urb *urb) 1852 { 1853 struct sk_buff *skb = urb->context; 1854 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1855 struct btusb_data *data = hci_get_drvdata(hdev); 1856 unsigned long flags; 1857 1858 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1859 urb->actual_length); 1860 1861 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1862 goto done; 1863 1864 if (!urb->status) { 1865 hdev->stat.byte_tx += urb->transfer_buffer_length; 1866 } else { 1867 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1868 hci_cmd_sync_cancel(hdev, -urb->status); 1869 hdev->stat.err_tx++; 1870 } 1871 1872 done: 1873 spin_lock_irqsave(&data->txlock, flags); 1874 data->tx_in_flight--; 1875 spin_unlock_irqrestore(&data->txlock, flags); 1876 1877 kfree(urb->setup_packet); 1878 1879 kfree_skb(skb); 1880 } 1881 1882 static void btusb_isoc_tx_complete(struct urb *urb) 1883 { 1884 struct sk_buff *skb = urb->context; 1885 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1886 1887 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1888 urb->actual_length); 1889 1890 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1891 goto done; 1892 1893 if (!urb->status) 1894 hdev->stat.byte_tx += urb->transfer_buffer_length; 1895 else 1896 hdev->stat.err_tx++; 1897 1898 done: 1899 kfree(urb->setup_packet); 1900 1901 kfree_skb(skb); 1902 } 1903 1904 static int btusb_open(struct hci_dev *hdev) 1905 { 1906 struct btusb_data *data = hci_get_drvdata(hdev); 1907 int err; 1908 1909 BT_DBG("%s", hdev->name); 1910 1911 err = usb_autopm_get_interface(data->intf); 1912 if (err < 0) 1913 return err; 1914 1915 /* Patching USB firmware files prior to starting any URBs of HCI path 1916 * It is more safe to use USB bulk channel for downloading USB patch 1917 */ 1918 if (data->setup_on_usb) { 1919 err = data->setup_on_usb(hdev); 1920 if (err < 0) 1921 goto setup_fail; 1922 } 1923 1924 data->intf->needs_remote_wakeup = 1; 1925 1926 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1927 goto done; 1928 1929 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1930 if (err < 0) 1931 goto failed; 1932 1933 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1934 if (err < 0) { 1935 usb_kill_anchored_urbs(&data->intr_anchor); 1936 goto failed; 1937 } 1938 1939 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1940 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1941 1942 if (data->diag) { 1943 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1944 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1945 } 1946 1947 done: 1948 usb_autopm_put_interface(data->intf); 1949 return 0; 1950 1951 failed: 1952 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1953 setup_fail: 1954 usb_autopm_put_interface(data->intf); 1955 return err; 1956 } 1957 1958 static void btusb_stop_traffic(struct btusb_data *data) 1959 { 1960 usb_kill_anchored_urbs(&data->intr_anchor); 1961 usb_kill_anchored_urbs(&data->bulk_anchor); 1962 usb_kill_anchored_urbs(&data->isoc_anchor); 1963 usb_kill_anchored_urbs(&data->diag_anchor); 1964 usb_kill_anchored_urbs(&data->ctrl_anchor); 1965 } 1966 1967 static int btusb_close(struct hci_dev *hdev) 1968 { 1969 struct btusb_data *data = hci_get_drvdata(hdev); 1970 int err; 1971 1972 BT_DBG("%s", hdev->name); 1973 1974 cancel_delayed_work(&data->rx_work); 1975 cancel_work_sync(&data->work); 1976 cancel_work_sync(&data->waker); 1977 1978 skb_queue_purge(&data->acl_q); 1979 1980 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1981 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1982 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1983 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1984 1985 btusb_stop_traffic(data); 1986 btusb_free_frags(data); 1987 1988 err = usb_autopm_get_interface(data->intf); 1989 if (err < 0) 1990 goto failed; 1991 1992 data->intf->needs_remote_wakeup = 0; 1993 1994 /* Enable remote wake up for auto-suspend */ 1995 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1996 data->intf->needs_remote_wakeup = 1; 1997 1998 usb_autopm_put_interface(data->intf); 1999 2000 failed: 2001 usb_scuttle_anchored_urbs(&data->deferred); 2002 return 0; 2003 } 2004 2005 static int btusb_flush(struct hci_dev *hdev) 2006 { 2007 struct btusb_data *data = hci_get_drvdata(hdev); 2008 2009 BT_DBG("%s", hdev->name); 2010 2011 cancel_delayed_work(&data->rx_work); 2012 2013 skb_queue_purge(&data->acl_q); 2014 2015 usb_kill_anchored_urbs(&data->tx_anchor); 2016 btusb_free_frags(data); 2017 2018 return 0; 2019 } 2020 2021 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 2022 { 2023 struct btusb_data *data = hci_get_drvdata(hdev); 2024 struct usb_ctrlrequest *dr; 2025 struct urb *urb; 2026 unsigned int pipe; 2027 2028 urb = usb_alloc_urb(0, GFP_KERNEL); 2029 if (!urb) 2030 return ERR_PTR(-ENOMEM); 2031 2032 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2033 if (!dr) { 2034 usb_free_urb(urb); 2035 return ERR_PTR(-ENOMEM); 2036 } 2037 2038 dr->bRequestType = data->cmdreq_type; 2039 dr->bRequest = data->cmdreq; 2040 dr->wIndex = 0; 2041 dr->wValue = 0; 2042 dr->wLength = __cpu_to_le16(skb->len); 2043 2044 pipe = usb_sndctrlpipe(data->udev, 0x00); 2045 2046 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2047 skb->data, skb->len, btusb_tx_complete, skb); 2048 2049 skb->dev = (void *)hdev; 2050 2051 return urb; 2052 } 2053 2054 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2055 { 2056 struct btusb_data *data = hci_get_drvdata(hdev); 2057 struct urb *urb; 2058 unsigned int pipe; 2059 2060 if (!data->bulk_tx_ep) 2061 return ERR_PTR(-ENODEV); 2062 2063 urb = usb_alloc_urb(0, GFP_KERNEL); 2064 if (!urb) 2065 return ERR_PTR(-ENOMEM); 2066 2067 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2068 2069 usb_fill_bulk_urb(urb, data->udev, pipe, 2070 skb->data, skb->len, btusb_tx_complete, skb); 2071 2072 skb->dev = (void *)hdev; 2073 2074 return urb; 2075 } 2076 2077 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2078 { 2079 struct btusb_data *data = hci_get_drvdata(hdev); 2080 struct urb *urb; 2081 unsigned int pipe; 2082 2083 if (!data->isoc_tx_ep) 2084 return ERR_PTR(-ENODEV); 2085 2086 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2087 if (!urb) 2088 return ERR_PTR(-ENOMEM); 2089 2090 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2091 2092 usb_fill_int_urb(urb, data->udev, pipe, 2093 skb->data, skb->len, btusb_isoc_tx_complete, 2094 skb, data->isoc_tx_ep->bInterval); 2095 2096 urb->transfer_flags = URB_ISO_ASAP; 2097 2098 if (data->isoc_altsetting == 6) 2099 __fill_isoc_descriptor_msbc(urb, skb->len, 2100 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2101 data); 2102 else 2103 __fill_isoc_descriptor(urb, skb->len, 2104 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2105 skb->dev = (void *)hdev; 2106 2107 return urb; 2108 } 2109 2110 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2111 { 2112 struct btusb_data *data = hci_get_drvdata(hdev); 2113 int err; 2114 2115 usb_anchor_urb(urb, &data->tx_anchor); 2116 2117 err = usb_submit_urb(urb, GFP_KERNEL); 2118 if (err < 0) { 2119 if (err != -EPERM && err != -ENODEV) 2120 bt_dev_err(hdev, "urb %p submission failed (%d)", 2121 urb, -err); 2122 kfree(urb->setup_packet); 2123 usb_unanchor_urb(urb); 2124 } else { 2125 usb_mark_last_busy(data->udev); 2126 } 2127 2128 usb_free_urb(urb); 2129 return err; 2130 } 2131 2132 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2133 { 2134 struct btusb_data *data = hci_get_drvdata(hdev); 2135 unsigned long flags; 2136 bool suspending; 2137 2138 spin_lock_irqsave(&data->txlock, flags); 2139 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2140 if (!suspending) 2141 data->tx_in_flight++; 2142 spin_unlock_irqrestore(&data->txlock, flags); 2143 2144 if (!suspending) 2145 return submit_tx_urb(hdev, urb); 2146 2147 usb_anchor_urb(urb, &data->deferred); 2148 schedule_work(&data->waker); 2149 2150 usb_free_urb(urb); 2151 return 0; 2152 } 2153 2154 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2155 { 2156 struct urb *urb; 2157 2158 BT_DBG("%s", hdev->name); 2159 2160 switch (hci_skb_pkt_type(skb)) { 2161 case HCI_COMMAND_PKT: 2162 urb = alloc_ctrl_urb(hdev, skb); 2163 if (IS_ERR(urb)) 2164 return PTR_ERR(urb); 2165 2166 hdev->stat.cmd_tx++; 2167 return submit_or_queue_tx_urb(hdev, urb); 2168 2169 case HCI_ACLDATA_PKT: 2170 urb = alloc_bulk_urb(hdev, skb); 2171 if (IS_ERR(urb)) 2172 return PTR_ERR(urb); 2173 2174 hdev->stat.acl_tx++; 2175 return submit_or_queue_tx_urb(hdev, urb); 2176 2177 case HCI_SCODATA_PKT: 2178 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2179 hci_conn_num(hdev, SCO_LINK) < 1) 2180 return -ENODEV; 2181 2182 urb = alloc_isoc_urb(hdev, skb); 2183 if (IS_ERR(urb)) 2184 return PTR_ERR(urb); 2185 2186 hdev->stat.sco_tx++; 2187 return submit_tx_urb(hdev, urb); 2188 2189 case HCI_ISODATA_PKT: 2190 urb = alloc_bulk_urb(hdev, skb); 2191 if (IS_ERR(urb)) 2192 return PTR_ERR(urb); 2193 2194 return submit_or_queue_tx_urb(hdev, urb); 2195 } 2196 2197 return -EILSEQ; 2198 } 2199 2200 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2201 { 2202 struct btusb_data *data = hci_get_drvdata(hdev); 2203 2204 BT_DBG("%s evt %d", hdev->name, evt); 2205 2206 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2207 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2208 data->air_mode = evt; 2209 schedule_work(&data->work); 2210 } 2211 } 2212 2213 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2214 { 2215 struct btusb_data *data = hci_get_drvdata(hdev); 2216 struct usb_interface *intf = data->isoc; 2217 struct usb_endpoint_descriptor *ep_desc; 2218 int i, err; 2219 2220 if (!data->isoc) 2221 return -ENODEV; 2222 2223 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2224 if (err < 0) { 2225 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2226 return err; 2227 } 2228 2229 data->isoc_altsetting = altsetting; 2230 2231 data->isoc_tx_ep = NULL; 2232 data->isoc_rx_ep = NULL; 2233 2234 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2235 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2236 2237 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2238 data->isoc_tx_ep = ep_desc; 2239 continue; 2240 } 2241 2242 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2243 data->isoc_rx_ep = ep_desc; 2244 continue; 2245 } 2246 } 2247 2248 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2249 bt_dev_err(hdev, "invalid SCO descriptors"); 2250 return -ENODEV; 2251 } 2252 2253 return 0; 2254 } 2255 2256 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2257 { 2258 struct btusb_data *data = hci_get_drvdata(hdev); 2259 int err; 2260 2261 if (data->isoc_altsetting != new_alts) { 2262 unsigned long flags; 2263 2264 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2265 usb_kill_anchored_urbs(&data->isoc_anchor); 2266 2267 /* When isochronous alternate setting needs to be 2268 * changed, because SCO connection has been added 2269 * or removed, a packet fragment may be left in the 2270 * reassembling state. This could lead to wrongly 2271 * assembled fragments. 2272 * 2273 * Clear outstanding fragment when selecting a new 2274 * alternate setting. 2275 */ 2276 spin_lock_irqsave(&data->rxlock, flags); 2277 dev_kfree_skb_irq(data->sco_skb); 2278 data->sco_skb = NULL; 2279 spin_unlock_irqrestore(&data->rxlock, flags); 2280 2281 err = __set_isoc_interface(hdev, new_alts); 2282 if (err < 0) 2283 return err; 2284 } 2285 2286 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2287 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2288 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2289 else 2290 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2291 } 2292 2293 return 0; 2294 } 2295 2296 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2297 int alt) 2298 { 2299 struct usb_interface *intf = data->isoc; 2300 int i; 2301 2302 BT_DBG("Looking for Alt no :%d", alt); 2303 2304 if (!intf) 2305 return NULL; 2306 2307 for (i = 0; i < intf->num_altsetting; i++) { 2308 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2309 return &intf->altsetting[i]; 2310 } 2311 2312 return NULL; 2313 } 2314 2315 static void btusb_work(struct work_struct *work) 2316 { 2317 struct btusb_data *data = container_of(work, struct btusb_data, work); 2318 struct hci_dev *hdev = data->hdev; 2319 int new_alts = 0; 2320 int err; 2321 2322 if (data->sco_num > 0) { 2323 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2324 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2325 if (err < 0) { 2326 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2327 usb_kill_anchored_urbs(&data->isoc_anchor); 2328 return; 2329 } 2330 2331 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2332 } 2333 2334 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2335 if (hdev->voice_setting & 0x0020) { 2336 static const int alts[3] = { 2, 4, 5 }; 2337 2338 new_alts = alts[data->sco_num - 1]; 2339 } else { 2340 new_alts = data->sco_num; 2341 } 2342 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2343 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2344 * many adapters do not support it. Alt 1 appears to 2345 * work for all adapters that do not have alt 6, and 2346 * which work with WBS at all. Some devices prefer 2347 * alt 3 (HCI payload >= 60 Bytes let air packet 2348 * data satisfy 60 bytes), requiring 2349 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2350 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2351 */ 2352 if (btusb_find_altsetting(data, 6)) 2353 new_alts = 6; 2354 else if (btusb_find_altsetting(data, 3) && 2355 hdev->sco_mtu >= 72 && 2356 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2357 new_alts = 3; 2358 else 2359 new_alts = 1; 2360 } 2361 2362 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2363 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2364 } else { 2365 usb_kill_anchored_urbs(&data->isoc_anchor); 2366 2367 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2368 __set_isoc_interface(hdev, 0); 2369 2370 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2371 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2372 } 2373 } 2374 2375 static void btusb_waker(struct work_struct *work) 2376 { 2377 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2378 int err; 2379 2380 err = usb_autopm_get_interface(data->intf); 2381 if (err < 0) 2382 return; 2383 2384 usb_autopm_put_interface(data->intf); 2385 } 2386 2387 static void btusb_rx_work(struct work_struct *work) 2388 { 2389 struct btusb_data *data = container_of(work, struct btusb_data, 2390 rx_work.work); 2391 struct sk_buff *skb; 2392 2393 /* Dequeue ACL data received during the interval */ 2394 while ((skb = skb_dequeue(&data->acl_q))) 2395 data->recv_acl(data->hdev, skb); 2396 } 2397 2398 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2399 { 2400 struct sk_buff *skb; 2401 u8 val = 0x00; 2402 2403 BT_DBG("%s", hdev->name); 2404 2405 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2406 if (IS_ERR(skb)) 2407 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2408 else 2409 kfree_skb(skb); 2410 2411 return 0; 2412 } 2413 2414 static int btusb_setup_csr(struct hci_dev *hdev) 2415 { 2416 struct btusb_data *data = hci_get_drvdata(hdev); 2417 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2418 struct hci_rp_read_local_version *rp; 2419 struct sk_buff *skb; 2420 bool is_fake = false; 2421 int ret; 2422 2423 BT_DBG("%s", hdev->name); 2424 2425 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2426 HCI_INIT_TIMEOUT); 2427 if (IS_ERR(skb)) { 2428 int err = PTR_ERR(skb); 2429 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2430 return err; 2431 } 2432 2433 rp = skb_pull_data(skb, sizeof(*rp)); 2434 if (!rp) { 2435 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2436 kfree_skb(skb); 2437 return -EIO; 2438 } 2439 2440 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2441 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2442 2443 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2444 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2445 le16_to_cpu(rp->manufacturer)); 2446 2447 /* Detect a wide host of Chinese controllers that aren't CSR. 2448 * 2449 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2450 * 2451 * The main thing they have in common is that these are really popular low-cost 2452 * options that support newer Bluetooth versions but rely on heavy VID/PID 2453 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2454 * 2455 * We detect actual CSR devices by checking that the HCI manufacturer code 2456 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2457 * HCI rev values always match. As they both store the firmware number. 2458 */ 2459 if (le16_to_cpu(rp->manufacturer) != 10 || 2460 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2461 is_fake = true; 2462 2463 /* Known legit CSR firmware build numbers and their supported BT versions: 2464 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2465 * - 1.2 (0x2) -> 0x04d9, 0x0529 2466 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2467 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2468 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2469 * 2470 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2471 * support BT 1.1 only; so it's a dead giveaway when some 2472 * third-party BT 4.0 dongle reuses it. 2473 */ 2474 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2475 rp->hci_ver > BLUETOOTH_VER_1_1) 2476 is_fake = true; 2477 2478 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2479 rp->hci_ver > BLUETOOTH_VER_1_2) 2480 is_fake = true; 2481 2482 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2483 rp->hci_ver > BLUETOOTH_VER_2_0) 2484 is_fake = true; 2485 2486 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2487 rp->hci_ver > BLUETOOTH_VER_2_1) 2488 is_fake = true; 2489 2490 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2491 rp->hci_ver > BLUETOOTH_VER_4_0) 2492 is_fake = true; 2493 2494 /* Other clones which beat all the above checks */ 2495 else if (bcdDevice == 0x0134 && 2496 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2497 rp->hci_ver == BLUETOOTH_VER_2_0) 2498 is_fake = true; 2499 2500 if (is_fake) { 2501 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2502 2503 /* Generally these clones have big discrepancies between 2504 * advertised features and what's actually supported. 2505 * Probably will need to be expanded in the future; 2506 * without these the controller will lock up. 2507 */ 2508 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2509 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2510 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2511 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2512 set_bit(HCI_QUIRK_BROKEN_READ_VOICE_SETTING, &hdev->quirks); 2513 set_bit(HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE, &hdev->quirks); 2514 2515 /* Clear the reset quirk since this is not an actual 2516 * early Bluetooth 1.1 device from CSR. 2517 */ 2518 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2519 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2520 2521 /* 2522 * Special workaround for these BT 4.0 chip clones, and potentially more: 2523 * 2524 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2525 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2526 * 2527 * These controllers are really messed-up. 2528 * 2529 * 1. Their bulk RX endpoint will never report any data unless 2530 * the device was suspended at least once (yes, really). 2531 * 2. They will not wakeup when autosuspended and receiving data 2532 * on their bulk RX endpoint from e.g. a keyboard or mouse 2533 * (IOW remote-wakeup support is broken for the bulk endpoint). 2534 * 2535 * To fix 1. enable runtime-suspend, force-suspend the 2536 * HCI and then wake-it up by disabling runtime-suspend. 2537 * 2538 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2539 * will still be autosuspended when it is not open. 2540 * 2541 * -- 2542 * 2543 * Because these are widespread problems we prefer generic solutions; so 2544 * apply this initialization quirk to every controller that gets here, 2545 * it should be harmless. The alternative is to not work at all. 2546 */ 2547 pm_runtime_allow(&data->udev->dev); 2548 2549 ret = pm_runtime_suspend(&data->udev->dev); 2550 if (ret >= 0) 2551 msleep(200); 2552 else 2553 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2554 2555 pm_runtime_forbid(&data->udev->dev); 2556 2557 device_set_wakeup_capable(&data->udev->dev, false); 2558 2559 /* Re-enable autosuspend if this was requested */ 2560 if (enable_autosuspend) 2561 usb_enable_autosuspend(data->udev); 2562 } 2563 2564 kfree_skb(skb); 2565 2566 return 0; 2567 } 2568 2569 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2570 { 2571 struct sk_buff *skb; 2572 struct hci_event_hdr *hdr; 2573 struct hci_ev_cmd_complete *evt; 2574 2575 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2576 if (!skb) 2577 return -ENOMEM; 2578 2579 hdr = skb_put(skb, sizeof(*hdr)); 2580 hdr->evt = HCI_EV_CMD_COMPLETE; 2581 hdr->plen = sizeof(*evt) + 1; 2582 2583 evt = skb_put(skb, sizeof(*evt)); 2584 evt->ncmd = 0x01; 2585 evt->opcode = cpu_to_le16(opcode); 2586 2587 skb_put_u8(skb, 0x00); 2588 2589 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2590 2591 return hci_recv_frame(hdev, skb); 2592 } 2593 2594 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2595 int count) 2596 { 2597 struct hci_dev *hdev = data->hdev; 2598 2599 /* When the device is in bootloader mode, then it can send 2600 * events via the bulk endpoint. These events are treated the 2601 * same way as the ones received from the interrupt endpoint. 2602 */ 2603 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2604 return btusb_recv_intr(data, buffer, count); 2605 2606 return btusb_recv_bulk(data, buffer, count); 2607 } 2608 2609 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2610 { 2611 struct urb *urb; 2612 2613 BT_DBG("%s", hdev->name); 2614 2615 switch (hci_skb_pkt_type(skb)) { 2616 case HCI_COMMAND_PKT: 2617 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2618 struct hci_command_hdr *cmd = (void *)skb->data; 2619 __u16 opcode = le16_to_cpu(cmd->opcode); 2620 2621 /* When in bootloader mode and the command 0xfc09 2622 * is received, it needs to be send down the 2623 * bulk endpoint. So allocate a bulk URB instead. 2624 */ 2625 if (opcode == 0xfc09) 2626 urb = alloc_bulk_urb(hdev, skb); 2627 else 2628 urb = alloc_ctrl_urb(hdev, skb); 2629 2630 /* When the 0xfc01 command is issued to boot into 2631 * the operational firmware, it will actually not 2632 * send a command complete event. To keep the flow 2633 * control working inject that event here. 2634 */ 2635 if (opcode == 0xfc01) 2636 inject_cmd_complete(hdev, opcode); 2637 } else { 2638 urb = alloc_ctrl_urb(hdev, skb); 2639 } 2640 if (IS_ERR(urb)) 2641 return PTR_ERR(urb); 2642 2643 hdev->stat.cmd_tx++; 2644 return submit_or_queue_tx_urb(hdev, urb); 2645 2646 case HCI_ACLDATA_PKT: 2647 urb = alloc_bulk_urb(hdev, skb); 2648 if (IS_ERR(urb)) 2649 return PTR_ERR(urb); 2650 2651 hdev->stat.acl_tx++; 2652 return submit_or_queue_tx_urb(hdev, urb); 2653 2654 case HCI_SCODATA_PKT: 2655 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2656 hci_conn_num(hdev, SCO_LINK) < 1) 2657 return -ENODEV; 2658 2659 urb = alloc_isoc_urb(hdev, skb); 2660 if (IS_ERR(urb)) 2661 return PTR_ERR(urb); 2662 2663 hdev->stat.sco_tx++; 2664 return submit_tx_urb(hdev, urb); 2665 2666 case HCI_ISODATA_PKT: 2667 urb = alloc_bulk_urb(hdev, skb); 2668 if (IS_ERR(urb)) 2669 return PTR_ERR(urb); 2670 2671 return submit_or_queue_tx_urb(hdev, urb); 2672 } 2673 2674 return -EILSEQ; 2675 } 2676 2677 static int btusb_setup_realtek(struct hci_dev *hdev) 2678 { 2679 struct btusb_data *data = hci_get_drvdata(hdev); 2680 int ret; 2681 2682 ret = btrtl_setup_realtek(hdev); 2683 2684 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2685 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2686 2687 return ret; 2688 } 2689 2690 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2691 { 2692 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2693 struct rtk_dev_coredump_hdr hdr = { 2694 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2695 }; 2696 2697 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2698 skb->len); 2699 2700 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2701 kfree_skb(skb); 2702 2703 return 0; 2704 } 2705 2706 return hci_recv_frame(hdev, skb); 2707 } 2708 2709 static void btusb_mtk_claim_iso_intf(struct btusb_data *data) 2710 { 2711 struct btmtk_data *btmtk_data = hci_get_priv(data->hdev); 2712 int err; 2713 2714 /* 2715 * The function usb_driver_claim_interface() is documented to need 2716 * locks held if it's not called from a probe routine. The code here 2717 * is called from the hci_power_on workqueue, so grab the lock. 2718 */ 2719 device_lock(&btmtk_data->isopkt_intf->dev); 2720 err = usb_driver_claim_interface(&btusb_driver, 2721 btmtk_data->isopkt_intf, data); 2722 device_unlock(&btmtk_data->isopkt_intf->dev); 2723 if (err < 0) { 2724 btmtk_data->isopkt_intf = NULL; 2725 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err); 2726 return; 2727 } 2728 2729 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2730 init_usb_anchor(&btmtk_data->isopkt_anchor); 2731 } 2732 2733 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev) 2734 { 2735 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2736 2737 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2738 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); 2739 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); 2740 2741 dev_kfree_skb_irq(btmtk_data->isopkt_skb); 2742 btmtk_data->isopkt_skb = NULL; 2743 usb_set_intfdata(btmtk_data->isopkt_intf, NULL); 2744 usb_driver_release_interface(&btusb_driver, 2745 btmtk_data->isopkt_intf); 2746 } 2747 2748 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2749 } 2750 2751 static int btusb_mtk_disconnect(struct hci_dev *hdev) 2752 { 2753 /* This function describes the specific additional steps taken by MediaTek 2754 * when Bluetooth usb driver's resume function is called. 2755 */ 2756 btusb_mtk_release_iso_intf(hdev); 2757 2758 return 0; 2759 } 2760 2761 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2762 { 2763 struct btusb_data *data = hci_get_drvdata(hdev); 2764 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2765 int err; 2766 2767 /* It's MediaTek specific bluetooth reset mechanism via USB */ 2768 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) { 2769 bt_dev_err(hdev, "last reset failed? Not resetting again"); 2770 return -EBUSY; 2771 } 2772 2773 err = usb_autopm_get_interface(data->intf); 2774 if (err < 0) 2775 return err; 2776 2777 /* Release MediaTek ISO data interface */ 2778 btusb_mtk_release_iso_intf(hdev); 2779 2780 btusb_stop_traffic(data); 2781 usb_kill_anchored_urbs(&data->tx_anchor); 2782 2783 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); 2784 2785 usb_queue_reset_device(data->intf); 2786 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 2787 2788 return err; 2789 } 2790 2791 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb) 2792 { 2793 struct urb *urb; 2794 2795 BT_DBG("%s", hdev->name); 2796 2797 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) { 2798 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); 2799 if (IS_ERR(urb)) 2800 return PTR_ERR(urb); 2801 2802 return submit_or_queue_tx_urb(hdev, urb); 2803 } else { 2804 return btusb_send_frame(hdev, skb); 2805 } 2806 } 2807 2808 static int btusb_mtk_setup(struct hci_dev *hdev) 2809 { 2810 struct btusb_data *data = hci_get_drvdata(hdev); 2811 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2812 2813 /* MediaTek WMT vendor cmd requiring below USB resources to 2814 * complete the handshake. 2815 */ 2816 btmtk_data->drv_name = btusb_driver.name; 2817 btmtk_data->intf = data->intf; 2818 btmtk_data->udev = data->udev; 2819 btmtk_data->ctrl_anchor = &data->ctrl_anchor; 2820 btmtk_data->reset_sync = btusb_mtk_reset; 2821 2822 /* Claim ISO data interface and endpoint */ 2823 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2824 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); 2825 btusb_mtk_claim_iso_intf(data); 2826 } 2827 2828 return btmtk_usb_setup(hdev); 2829 } 2830 2831 static int btusb_mtk_shutdown(struct hci_dev *hdev) 2832 { 2833 int ret; 2834 2835 ret = btmtk_usb_shutdown(hdev); 2836 2837 /* Release MediaTek iso interface after shutdown */ 2838 btusb_mtk_release_iso_intf(hdev); 2839 2840 return ret; 2841 } 2842 2843 #ifdef CONFIG_PM 2844 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2845 static int marvell_config_oob_wake(struct hci_dev *hdev) 2846 { 2847 struct sk_buff *skb; 2848 struct btusb_data *data = hci_get_drvdata(hdev); 2849 struct device *dev = &data->udev->dev; 2850 u16 pin, gap, opcode; 2851 int ret; 2852 u8 cmd[5]; 2853 2854 /* Move on if no wakeup pin specified */ 2855 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2856 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2857 return 0; 2858 2859 /* Vendor specific command to configure a GPIO as wake-up pin */ 2860 opcode = hci_opcode_pack(0x3F, 0x59); 2861 cmd[0] = opcode & 0xFF; 2862 cmd[1] = opcode >> 8; 2863 cmd[2] = 2; /* length of parameters that follow */ 2864 cmd[3] = pin; 2865 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2866 2867 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2868 if (!skb) { 2869 bt_dev_err(hdev, "%s: No memory", __func__); 2870 return -ENOMEM; 2871 } 2872 2873 skb_put_data(skb, cmd, sizeof(cmd)); 2874 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2875 2876 ret = btusb_send_frame(hdev, skb); 2877 if (ret) { 2878 bt_dev_err(hdev, "%s: configuration failed", __func__); 2879 kfree_skb(skb); 2880 return ret; 2881 } 2882 2883 return 0; 2884 } 2885 #endif 2886 2887 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2888 const bdaddr_t *bdaddr) 2889 { 2890 struct sk_buff *skb; 2891 u8 buf[8]; 2892 long ret; 2893 2894 buf[0] = 0xfe; 2895 buf[1] = sizeof(bdaddr_t); 2896 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2897 2898 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2899 if (IS_ERR(skb)) { 2900 ret = PTR_ERR(skb); 2901 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2902 ret); 2903 return ret; 2904 } 2905 kfree_skb(skb); 2906 2907 return 0; 2908 } 2909 2910 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2911 const bdaddr_t *bdaddr) 2912 { 2913 struct sk_buff *skb; 2914 u8 buf[10]; 2915 long ret; 2916 2917 buf[0] = 0x01; 2918 buf[1] = 0x01; 2919 buf[2] = 0x00; 2920 buf[3] = sizeof(bdaddr_t); 2921 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2922 2923 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2924 if (IS_ERR(skb)) { 2925 ret = PTR_ERR(skb); 2926 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2927 return ret; 2928 } 2929 kfree_skb(skb); 2930 2931 return 0; 2932 } 2933 2934 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 2935 const bdaddr_t *bdaddr) 2936 { 2937 struct sk_buff *skb; 2938 u8 buf[6]; 2939 long ret; 2940 2941 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 2942 2943 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 2944 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 2945 if (IS_ERR(skb)) { 2946 ret = PTR_ERR(skb); 2947 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2948 return ret; 2949 } 2950 kfree_skb(skb); 2951 2952 return 0; 2953 } 2954 2955 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 2956 #define QCA_MEMDUMP_SIZE_MAX 0x100000 2957 #define QCA_MEMDUMP_VSE_CLASS 0x01 2958 #define QCA_MEMDUMP_MSG_TYPE 0x08 2959 #define QCA_MEMDUMP_PKT_SIZE 248 2960 #define QCA_LAST_SEQUENCE_NUM 0xffff 2961 2962 struct qca_dump_hdr { 2963 u8 vse_class; 2964 u8 msg_type; 2965 __le16 seqno; 2966 u8 reserved; 2967 union { 2968 u8 data[0]; 2969 struct { 2970 __le32 ram_dump_size; 2971 u8 data0[0]; 2972 } __packed; 2973 }; 2974 } __packed; 2975 2976 2977 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 2978 { 2979 char buf[128]; 2980 struct btusb_data *btdata = hci_get_drvdata(hdev); 2981 2982 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 2983 btdata->qca_dump.controller_id); 2984 skb_put_data(skb, buf, strlen(buf)); 2985 2986 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 2987 btdata->qca_dump.fw_version); 2988 skb_put_data(skb, buf, strlen(buf)); 2989 2990 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 2991 btusb_driver.name); 2992 skb_put_data(skb, buf, strlen(buf)); 2993 2994 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 2995 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 2996 skb_put_data(skb, buf, strlen(buf)); 2997 2998 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 2999 hdev->lmp_subver); 3000 skb_put_data(skb, buf, strlen(buf)); 3001 } 3002 3003 static void btusb_coredump_qca(struct hci_dev *hdev) 3004 { 3005 int err; 3006 static const u8 param[] = { 0x26 }; 3007 3008 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3009 if (err < 0) 3010 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3011 } 3012 3013 /* Return: 0 on success, negative errno on failure. */ 3014 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3015 { 3016 int ret = 0; 3017 u8 pkt_type; 3018 u8 *sk_ptr; 3019 unsigned int sk_len; 3020 u16 seqno; 3021 u32 dump_size; 3022 3023 struct qca_dump_hdr *dump_hdr; 3024 struct btusb_data *btdata = hci_get_drvdata(hdev); 3025 struct usb_device *udev = btdata->udev; 3026 3027 pkt_type = hci_skb_pkt_type(skb); 3028 sk_ptr = skb->data; 3029 sk_len = skb->len; 3030 3031 if (pkt_type == HCI_ACLDATA_PKT) { 3032 sk_ptr += HCI_ACL_HDR_SIZE; 3033 sk_len -= HCI_ACL_HDR_SIZE; 3034 } 3035 3036 sk_ptr += HCI_EVENT_HDR_SIZE; 3037 sk_len -= HCI_EVENT_HDR_SIZE; 3038 3039 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3040 seqno = le16_to_cpu(dump_hdr->seqno); 3041 if (seqno == 0) { 3042 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3043 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3044 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3045 ret = -EILSEQ; 3046 bt_dev_err(hdev, "Invalid memdump size(%u)", 3047 dump_size); 3048 goto out; 3049 } 3050 3051 ret = hci_devcd_init(hdev, dump_size); 3052 if (ret < 0) { 3053 bt_dev_err(hdev, "memdump init error(%d)", ret); 3054 goto out; 3055 } 3056 3057 btdata->qca_dump.ram_dump_size = dump_size; 3058 btdata->qca_dump.ram_dump_seqno = 0; 3059 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3060 sk_len -= offsetof(struct qca_dump_hdr, data0); 3061 3062 usb_disable_autosuspend(udev); 3063 bt_dev_info(hdev, "%s memdump size(%u)\n", 3064 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3065 dump_size); 3066 } else { 3067 sk_ptr += offsetof(struct qca_dump_hdr, data); 3068 sk_len -= offsetof(struct qca_dump_hdr, data); 3069 } 3070 3071 if (!btdata->qca_dump.ram_dump_size) { 3072 ret = -EINVAL; 3073 bt_dev_err(hdev, "memdump is not active"); 3074 goto out; 3075 } 3076 3077 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3078 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3079 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3080 bt_dev_err(hdev, 3081 "expected memdump seqno(%u) is not received(%u)\n", 3082 btdata->qca_dump.ram_dump_seqno, seqno); 3083 btdata->qca_dump.ram_dump_seqno = seqno; 3084 kfree_skb(skb); 3085 return ret; 3086 } 3087 3088 skb_pull(skb, skb->len - sk_len); 3089 hci_devcd_append(hdev, skb); 3090 btdata->qca_dump.ram_dump_seqno++; 3091 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3092 bt_dev_info(hdev, 3093 "memdump done: pkts(%u), total(%u)\n", 3094 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3095 3096 hci_devcd_complete(hdev); 3097 goto out; 3098 } 3099 return ret; 3100 3101 out: 3102 if (btdata->qca_dump.ram_dump_size) 3103 usb_enable_autosuspend(udev); 3104 btdata->qca_dump.ram_dump_size = 0; 3105 btdata->qca_dump.ram_dump_seqno = 0; 3106 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3107 3108 if (ret < 0) 3109 kfree_skb(skb); 3110 return ret; 3111 } 3112 3113 /* Return: true if the ACL packet is a dump packet, false otherwise. */ 3114 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3115 { 3116 u8 *sk_ptr; 3117 unsigned int sk_len; 3118 3119 struct hci_event_hdr *event_hdr; 3120 struct hci_acl_hdr *acl_hdr; 3121 struct qca_dump_hdr *dump_hdr; 3122 3123 sk_ptr = skb->data; 3124 sk_len = skb->len; 3125 3126 acl_hdr = hci_acl_hdr(skb); 3127 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3128 return false; 3129 3130 sk_ptr += HCI_ACL_HDR_SIZE; 3131 sk_len -= HCI_ACL_HDR_SIZE; 3132 event_hdr = (struct hci_event_hdr *)sk_ptr; 3133 3134 if ((event_hdr->evt != HCI_VENDOR_PKT) || 3135 (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3136 return false; 3137 3138 sk_ptr += HCI_EVENT_HDR_SIZE; 3139 sk_len -= HCI_EVENT_HDR_SIZE; 3140 3141 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3142 if ((sk_len < offsetof(struct qca_dump_hdr, data)) || 3143 (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3144 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3145 return false; 3146 3147 return true; 3148 } 3149 3150 /* Return: true if the event packet is a dump packet, false otherwise. */ 3151 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3152 { 3153 u8 *sk_ptr; 3154 unsigned int sk_len; 3155 3156 struct hci_event_hdr *event_hdr; 3157 struct qca_dump_hdr *dump_hdr; 3158 3159 sk_ptr = skb->data; 3160 sk_len = skb->len; 3161 3162 event_hdr = hci_event_hdr(skb); 3163 3164 if ((event_hdr->evt != HCI_VENDOR_PKT) 3165 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3166 return false; 3167 3168 sk_ptr += HCI_EVENT_HDR_SIZE; 3169 sk_len -= HCI_EVENT_HDR_SIZE; 3170 3171 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3172 if ((sk_len < offsetof(struct qca_dump_hdr, data)) || 3173 (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3174 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3175 return false; 3176 3177 return true; 3178 } 3179 3180 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3181 { 3182 if (acl_pkt_is_dump_qca(hdev, skb)) 3183 return handle_dump_pkt_qca(hdev, skb); 3184 return hci_recv_frame(hdev, skb); 3185 } 3186 3187 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3188 { 3189 if (evt_pkt_is_dump_qca(hdev, skb)) 3190 return handle_dump_pkt_qca(hdev, skb); 3191 return hci_recv_frame(hdev, skb); 3192 } 3193 3194 3195 #define QCA_DFU_PACKET_LEN 4096 3196 3197 #define QCA_GET_TARGET_VERSION 0x09 3198 #define QCA_CHECK_STATUS 0x05 3199 #define QCA_DFU_DOWNLOAD 0x01 3200 3201 #define QCA_SYSCFG_UPDATED 0x40 3202 #define QCA_PATCH_UPDATED 0x80 3203 #define QCA_DFU_TIMEOUT 3000 3204 #define QCA_FLAG_MULTI_NVM 0x80 3205 #define QCA_BT_RESET_WAIT_MS 100 3206 3207 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3208 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3209 3210 struct qca_version { 3211 __le32 rom_version; 3212 __le32 patch_version; 3213 __le32 ram_version; 3214 __u8 chip_id; 3215 __u8 platform_id; 3216 __le16 flag; 3217 __u8 reserved[4]; 3218 } __packed; 3219 3220 struct qca_rampatch_version { 3221 __le16 rom_version_high; 3222 __le16 rom_version_low; 3223 __le16 patch_version; 3224 } __packed; 3225 3226 struct qca_device_info { 3227 u32 rom_version; 3228 u8 rampatch_hdr; /* length of header in rampatch */ 3229 u8 nvm_hdr; /* length of header in NVM */ 3230 u8 ver_offset; /* offset of version structure in rampatch */ 3231 }; 3232 3233 static const struct qca_device_info qca_devices_table[] = { 3234 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3235 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3236 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3237 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3238 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3239 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3240 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3241 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3242 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3243 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3244 }; 3245 3246 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3247 void *data, u16 size) 3248 { 3249 int pipe, err; 3250 u8 *buf; 3251 3252 buf = kmalloc(size, GFP_KERNEL); 3253 if (!buf) 3254 return -ENOMEM; 3255 3256 /* Found some of USB hosts have IOT issues with ours so that we should 3257 * not wait until HCI layer is ready. 3258 */ 3259 pipe = usb_rcvctrlpipe(udev, 0); 3260 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3261 0, 0, buf, size, USB_CTRL_GET_TIMEOUT); 3262 if (err < 0) { 3263 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3264 goto done; 3265 } 3266 3267 memcpy(data, buf, size); 3268 3269 done: 3270 kfree(buf); 3271 3272 return err; 3273 } 3274 3275 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3276 const struct firmware *firmware, 3277 size_t hdr_size) 3278 { 3279 struct btusb_data *btdata = hci_get_drvdata(hdev); 3280 struct usb_device *udev = btdata->udev; 3281 size_t count, size, sent = 0; 3282 int pipe, len, err; 3283 u8 *buf; 3284 3285 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3286 if (!buf) 3287 return -ENOMEM; 3288 3289 count = firmware->size; 3290 3291 size = min_t(size_t, count, hdr_size); 3292 memcpy(buf, firmware->data, size); 3293 3294 /* USB patches should go down to controller through USB path 3295 * because binary format fits to go down through USB channel. 3296 * USB control path is for patching headers and USB bulk is for 3297 * patch body. 3298 */ 3299 pipe = usb_sndctrlpipe(udev, 0); 3300 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3301 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3302 if (err < 0) { 3303 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3304 goto done; 3305 } 3306 3307 sent += size; 3308 count -= size; 3309 3310 /* ep2 need time to switch from function acl to function dfu, 3311 * so we add 20ms delay here. 3312 */ 3313 msleep(20); 3314 3315 while (count) { 3316 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3317 3318 memcpy(buf, firmware->data + sent, size); 3319 3320 pipe = usb_sndbulkpipe(udev, 0x02); 3321 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3322 QCA_DFU_TIMEOUT); 3323 if (err < 0) { 3324 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3325 sent, firmware->size, err); 3326 break; 3327 } 3328 3329 if (size != len) { 3330 bt_dev_err(hdev, "Failed to get bulk buffer"); 3331 err = -EILSEQ; 3332 break; 3333 } 3334 3335 sent += size; 3336 count -= size; 3337 } 3338 3339 done: 3340 kfree(buf); 3341 return err; 3342 } 3343 3344 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3345 struct qca_version *ver, 3346 const struct qca_device_info *info) 3347 { 3348 struct qca_rampatch_version *rver; 3349 const struct firmware *fw; 3350 u32 ver_rom, ver_patch, rver_rom; 3351 u16 rver_rom_low, rver_rom_high, rver_patch; 3352 char fwname[64]; 3353 int err; 3354 3355 ver_rom = le32_to_cpu(ver->rom_version); 3356 ver_patch = le32_to_cpu(ver->patch_version); 3357 3358 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3359 3360 err = request_firmware(&fw, fwname, &hdev->dev); 3361 if (err) { 3362 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3363 fwname, err); 3364 return err; 3365 } 3366 3367 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3368 3369 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3370 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3371 rver_patch = le16_to_cpu(rver->patch_version); 3372 3373 if (ver_rom & ~0xffffU) { 3374 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3375 rver_rom = rver_rom_high << 16 | rver_rom_low; 3376 } else { 3377 rver_rom = rver_rom_low; 3378 } 3379 3380 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3381 "firmware rome 0x%x build 0x%x", 3382 rver_rom, rver_patch, ver_rom, ver_patch); 3383 3384 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3385 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3386 err = -EINVAL; 3387 goto done; 3388 } 3389 3390 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3391 3392 done: 3393 release_firmware(fw); 3394 3395 return err; 3396 } 3397 3398 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3399 const struct qca_version *ver) 3400 { 3401 u32 rom_version = le32_to_cpu(ver->rom_version); 3402 u16 flag = le16_to_cpu(ver->flag); 3403 3404 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3405 /* The board_id should be split into two bytes 3406 * The 1st byte is chip ID, and the 2nd byte is platform ID 3407 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3408 * we have several platforms, and platform IDs are continuously added 3409 * Platform ID: 3410 * 0x00 is for Mobile 3411 * 0x01 is for X86 3412 * 0x02 is for Automotive 3413 * 0x03 is for Consumer electronic 3414 */ 3415 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3416 const char *variant; 3417 3418 switch (le32_to_cpu(ver->ram_version)) { 3419 case WCN6855_2_0_RAM_VERSION_GF: 3420 case WCN6855_2_1_RAM_VERSION_GF: 3421 variant = "_gf"; 3422 break; 3423 default: 3424 variant = ""; 3425 break; 3426 } 3427 3428 if (board_id == 0) { 3429 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3430 rom_version, variant); 3431 } else { 3432 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3433 rom_version, variant, board_id); 3434 } 3435 } else { 3436 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3437 rom_version); 3438 } 3439 3440 } 3441 3442 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3443 struct qca_version *ver, 3444 const struct qca_device_info *info) 3445 { 3446 const struct firmware *fw; 3447 char fwname[64]; 3448 int err; 3449 3450 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3451 3452 err = request_firmware(&fw, fwname, &hdev->dev); 3453 if (err) { 3454 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3455 fwname, err); 3456 return err; 3457 } 3458 3459 bt_dev_info(hdev, "using NVM file: %s", fwname); 3460 3461 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3462 3463 release_firmware(fw); 3464 3465 return err; 3466 } 3467 3468 /* identify the ROM version and check whether patches are needed */ 3469 static bool btusb_qca_need_patch(struct usb_device *udev) 3470 { 3471 struct qca_version ver; 3472 3473 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3474 sizeof(ver)) < 0) 3475 return false; 3476 /* only low ROM versions need patches */ 3477 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3478 } 3479 3480 static int btusb_setup_qca(struct hci_dev *hdev) 3481 { 3482 struct btusb_data *btdata = hci_get_drvdata(hdev); 3483 struct usb_device *udev = btdata->udev; 3484 const struct qca_device_info *info = NULL; 3485 struct qca_version ver; 3486 u32 ver_rom; 3487 u8 status; 3488 int i, err; 3489 3490 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3491 sizeof(ver)); 3492 if (err < 0) 3493 return err; 3494 3495 ver_rom = le32_to_cpu(ver.rom_version); 3496 3497 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3498 if (ver_rom == qca_devices_table[i].rom_version) 3499 info = &qca_devices_table[i]; 3500 } 3501 if (!info) { 3502 /* If the rom_version is not matched in the qca_devices_table 3503 * and the high ROM version is not zero, we assume this chip no 3504 * need to load the rampatch and nvm. 3505 */ 3506 if (ver_rom & ~0xffffU) 3507 return 0; 3508 3509 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3510 return -ENODEV; 3511 } 3512 3513 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3514 sizeof(status)); 3515 if (err < 0) 3516 return err; 3517 3518 if (!(status & QCA_PATCH_UPDATED)) { 3519 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3520 if (err < 0) 3521 return err; 3522 } 3523 3524 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3525 sizeof(ver)); 3526 if (err < 0) 3527 return err; 3528 3529 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3530 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3531 3532 if (!(status & QCA_SYSCFG_UPDATED)) { 3533 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3534 if (err < 0) 3535 return err; 3536 3537 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3538 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3539 * cause potential enable failure. 3540 */ 3541 if (info->rom_version >= 0x00130201) 3542 msleep(QCA_BT_RESET_WAIT_MS); 3543 } 3544 3545 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3546 * work with the likes of HSP/HFP mSBC. 3547 */ 3548 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3549 3550 return 0; 3551 } 3552 3553 static inline int __set_diag_interface(struct hci_dev *hdev) 3554 { 3555 struct btusb_data *data = hci_get_drvdata(hdev); 3556 struct usb_interface *intf = data->diag; 3557 int i; 3558 3559 if (!data->diag) 3560 return -ENODEV; 3561 3562 data->diag_tx_ep = NULL; 3563 data->diag_rx_ep = NULL; 3564 3565 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3566 struct usb_endpoint_descriptor *ep_desc; 3567 3568 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3569 3570 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3571 data->diag_tx_ep = ep_desc; 3572 continue; 3573 } 3574 3575 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3576 data->diag_rx_ep = ep_desc; 3577 continue; 3578 } 3579 } 3580 3581 if (!data->diag_tx_ep || !data->diag_rx_ep) { 3582 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3583 return -ENODEV; 3584 } 3585 3586 return 0; 3587 } 3588 3589 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3590 { 3591 struct btusb_data *data = hci_get_drvdata(hdev); 3592 struct sk_buff *skb; 3593 struct urb *urb; 3594 unsigned int pipe; 3595 3596 if (!data->diag_tx_ep) 3597 return ERR_PTR(-ENODEV); 3598 3599 urb = usb_alloc_urb(0, GFP_KERNEL); 3600 if (!urb) 3601 return ERR_PTR(-ENOMEM); 3602 3603 skb = bt_skb_alloc(2, GFP_KERNEL); 3604 if (!skb) { 3605 usb_free_urb(urb); 3606 return ERR_PTR(-ENOMEM); 3607 } 3608 3609 skb_put_u8(skb, 0xf0); 3610 skb_put_u8(skb, enable); 3611 3612 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 3613 3614 usb_fill_bulk_urb(urb, data->udev, pipe, 3615 skb->data, skb->len, btusb_tx_complete, skb); 3616 3617 skb->dev = (void *)hdev; 3618 3619 return urb; 3620 } 3621 3622 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 3623 { 3624 struct btusb_data *data = hci_get_drvdata(hdev); 3625 struct urb *urb; 3626 3627 if (!data->diag) 3628 return -ENODEV; 3629 3630 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3631 return -ENETDOWN; 3632 3633 urb = alloc_diag_urb(hdev, enable); 3634 if (IS_ERR(urb)) 3635 return PTR_ERR(urb); 3636 3637 return submit_or_queue_tx_urb(hdev, urb); 3638 } 3639 3640 #ifdef CONFIG_PM 3641 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 3642 { 3643 struct btusb_data *data = priv; 3644 3645 pm_wakeup_event(&data->udev->dev, 0); 3646 pm_system_wakeup(); 3647 3648 /* Disable only if not already disabled (keep it balanced) */ 3649 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3650 disable_irq_nosync(irq); 3651 disable_irq_wake(irq); 3652 } 3653 return IRQ_HANDLED; 3654 } 3655 3656 static const struct of_device_id btusb_match_table[] = { 3657 { .compatible = "usb1286,204e" }, 3658 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 3659 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 3660 { } 3661 }; 3662 MODULE_DEVICE_TABLE(of, btusb_match_table); 3663 3664 /* Use an oob wakeup pin? */ 3665 static int btusb_config_oob_wake(struct hci_dev *hdev) 3666 { 3667 struct btusb_data *data = hci_get_drvdata(hdev); 3668 struct device *dev = &data->udev->dev; 3669 int irq, ret; 3670 3671 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3672 3673 if (!of_match_device(btusb_match_table, dev)) 3674 return 0; 3675 3676 /* Move on if no IRQ specified */ 3677 irq = of_irq_get_byname(dev->of_node, "wakeup"); 3678 if (irq <= 0) { 3679 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 3680 return 0; 3681 } 3682 3683 irq_set_status_flags(irq, IRQ_NOAUTOEN); 3684 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 3685 0, "OOB Wake-on-BT", data); 3686 if (ret) { 3687 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 3688 return ret; 3689 } 3690 3691 ret = device_init_wakeup(dev, true); 3692 if (ret) { 3693 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 3694 return ret; 3695 } 3696 3697 data->oob_wake_irq = irq; 3698 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 3699 return 0; 3700 } 3701 #endif 3702 3703 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 3704 { 3705 if (dmi_check_system(btusb_needs_reset_resume_table)) 3706 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3707 } 3708 3709 static bool btusb_wakeup(struct hci_dev *hdev) 3710 { 3711 struct btusb_data *data = hci_get_drvdata(hdev); 3712 3713 return device_may_wakeup(&data->udev->dev); 3714 } 3715 3716 static int btusb_shutdown_qca(struct hci_dev *hdev) 3717 { 3718 struct sk_buff *skb; 3719 3720 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 3721 if (IS_ERR(skb)) { 3722 bt_dev_err(hdev, "HCI reset during shutdown failed"); 3723 return PTR_ERR(skb); 3724 } 3725 kfree_skb(skb); 3726 3727 return 0; 3728 } 3729 3730 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 3731 size_t count, loff_t *ppos) 3732 { 3733 struct btusb_data *data = file->private_data; 3734 char buf[3]; 3735 3736 buf[0] = data->poll_sync ? 'Y' : 'N'; 3737 buf[1] = '\n'; 3738 buf[2] = '\0'; 3739 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 3740 } 3741 3742 static ssize_t force_poll_sync_write(struct file *file, 3743 const char __user *user_buf, 3744 size_t count, loff_t *ppos) 3745 { 3746 struct btusb_data *data = file->private_data; 3747 bool enable; 3748 int err; 3749 3750 err = kstrtobool_from_user(user_buf, count, &enable); 3751 if (err) 3752 return err; 3753 3754 /* Only allow changes while the adapter is down */ 3755 if (test_bit(HCI_UP, &data->hdev->flags)) 3756 return -EPERM; 3757 3758 if (data->poll_sync == enable) 3759 return -EALREADY; 3760 3761 data->poll_sync = enable; 3762 3763 return count; 3764 } 3765 3766 static const struct file_operations force_poll_sync_fops = { 3767 .owner = THIS_MODULE, 3768 .open = simple_open, 3769 .read = force_poll_sync_read, 3770 .write = force_poll_sync_write, 3771 .llseek = default_llseek, 3772 }; 3773 3774 static ssize_t isoc_alt_show(struct device *dev, 3775 struct device_attribute *attr, 3776 char *buf) 3777 { 3778 struct btusb_data *data = dev_get_drvdata(dev); 3779 3780 return sysfs_emit(buf, "%d\n", data->isoc_altsetting); 3781 } 3782 3783 static ssize_t isoc_alt_store(struct device *dev, 3784 struct device_attribute *attr, 3785 const char *buf, size_t count) 3786 { 3787 struct btusb_data *data = dev_get_drvdata(dev); 3788 int alt; 3789 int ret; 3790 3791 if (kstrtoint(buf, 10, &alt)) 3792 return -EINVAL; 3793 3794 ret = btusb_switch_alt_setting(data->hdev, alt); 3795 return ret < 0 ? ret : count; 3796 } 3797 3798 static DEVICE_ATTR_RW(isoc_alt); 3799 3800 static int btusb_probe(struct usb_interface *intf, 3801 const struct usb_device_id *id) 3802 { 3803 struct usb_endpoint_descriptor *ep_desc; 3804 struct gpio_desc *reset_gpio; 3805 struct btusb_data *data; 3806 struct hci_dev *hdev; 3807 unsigned ifnum_base; 3808 int i, err, priv_size; 3809 3810 BT_DBG("intf %p id %p", intf, id); 3811 3812 if ((id->driver_info & BTUSB_IFNUM_2) && 3813 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 3814 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 3815 return -ENODEV; 3816 3817 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 3818 3819 if (!id->driver_info) { 3820 const struct usb_device_id *match; 3821 3822 match = usb_match_id(intf, quirks_table); 3823 if (match) 3824 id = match; 3825 } 3826 3827 if (id->driver_info == BTUSB_IGNORE) 3828 return -ENODEV; 3829 3830 if (id->driver_info & BTUSB_ATH3012) { 3831 struct usb_device *udev = interface_to_usbdev(intf); 3832 3833 /* Old firmware would otherwise let ath3k driver load 3834 * patch and sysconfig files 3835 */ 3836 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 3837 !btusb_qca_need_patch(udev)) 3838 return -ENODEV; 3839 } 3840 3841 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 3842 if (!data) 3843 return -ENOMEM; 3844 3845 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3846 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3847 3848 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 3849 data->intr_ep = ep_desc; 3850 continue; 3851 } 3852 3853 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3854 data->bulk_tx_ep = ep_desc; 3855 continue; 3856 } 3857 3858 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3859 data->bulk_rx_ep = ep_desc; 3860 continue; 3861 } 3862 } 3863 3864 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 3865 return -ENODEV; 3866 3867 if (id->driver_info & BTUSB_AMP) { 3868 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 3869 data->cmdreq = 0x2b; 3870 } else { 3871 data->cmdreq_type = USB_TYPE_CLASS; 3872 data->cmdreq = 0x00; 3873 } 3874 3875 data->udev = interface_to_usbdev(intf); 3876 data->intf = intf; 3877 3878 INIT_WORK(&data->work, btusb_work); 3879 INIT_WORK(&data->waker, btusb_waker); 3880 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 3881 3882 skb_queue_head_init(&data->acl_q); 3883 3884 init_usb_anchor(&data->deferred); 3885 init_usb_anchor(&data->tx_anchor); 3886 spin_lock_init(&data->txlock); 3887 3888 init_usb_anchor(&data->intr_anchor); 3889 init_usb_anchor(&data->bulk_anchor); 3890 init_usb_anchor(&data->isoc_anchor); 3891 init_usb_anchor(&data->diag_anchor); 3892 init_usb_anchor(&data->ctrl_anchor); 3893 spin_lock_init(&data->rxlock); 3894 3895 priv_size = 0; 3896 3897 data->recv_event = hci_recv_frame; 3898 data->recv_bulk = btusb_recv_bulk; 3899 3900 if (id->driver_info & BTUSB_INTEL_COMBINED) { 3901 /* Allocate extra space for Intel device */ 3902 priv_size += sizeof(struct btintel_data); 3903 3904 /* Override the rx handlers */ 3905 data->recv_event = btintel_recv_event; 3906 data->recv_bulk = btusb_recv_bulk_intel; 3907 } else if (id->driver_info & BTUSB_REALTEK) { 3908 /* Allocate extra space for Realtek device */ 3909 priv_size += sizeof(struct btrealtek_data); 3910 3911 data->recv_event = btusb_recv_event_realtek; 3912 } else if (id->driver_info & BTUSB_MEDIATEK) { 3913 /* Allocate extra space for Mediatek device */ 3914 priv_size += sizeof(struct btmtk_data); 3915 } 3916 3917 data->recv_acl = hci_recv_frame; 3918 3919 hdev = hci_alloc_dev_priv(priv_size); 3920 if (!hdev) 3921 return -ENOMEM; 3922 3923 hdev->bus = HCI_USB; 3924 hci_set_drvdata(hdev, data); 3925 3926 data->hdev = hdev; 3927 3928 SET_HCIDEV_DEV(hdev, &intf->dev); 3929 3930 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 3931 GPIOD_OUT_LOW); 3932 if (IS_ERR(reset_gpio)) { 3933 err = PTR_ERR(reset_gpio); 3934 goto out_free_dev; 3935 } else if (reset_gpio) { 3936 data->reset_gpio = reset_gpio; 3937 } 3938 3939 hdev->open = btusb_open; 3940 hdev->close = btusb_close; 3941 hdev->flush = btusb_flush; 3942 hdev->send = btusb_send_frame; 3943 hdev->notify = btusb_notify; 3944 hdev->wakeup = btusb_wakeup; 3945 3946 #ifdef CONFIG_PM 3947 err = btusb_config_oob_wake(hdev); 3948 if (err) 3949 goto out_free_dev; 3950 3951 /* Marvell devices may need a specific chip configuration */ 3952 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3953 err = marvell_config_oob_wake(hdev); 3954 if (err) 3955 goto out_free_dev; 3956 } 3957 #endif 3958 if (id->driver_info & BTUSB_CW6622) 3959 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3960 3961 if (id->driver_info & BTUSB_BCM2045) 3962 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3963 3964 if (id->driver_info & BTUSB_BCM92035) 3965 hdev->setup = btusb_setup_bcm92035; 3966 3967 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 3968 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 3969 hdev->manufacturer = 15; 3970 hdev->setup = btbcm_setup_patchram; 3971 hdev->set_diag = btusb_bcm_set_diag; 3972 hdev->set_bdaddr = btbcm_set_bdaddr; 3973 3974 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3975 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3976 } 3977 3978 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 3979 (id->driver_info & BTUSB_BCM_APPLE)) { 3980 hdev->manufacturer = 15; 3981 hdev->setup = btbcm_setup_apple; 3982 hdev->set_diag = btusb_bcm_set_diag; 3983 3984 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3985 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3986 } 3987 3988 /* Combined Intel Device setup to support multiple setup routine */ 3989 if (id->driver_info & BTUSB_INTEL_COMBINED) { 3990 err = btintel_configure_setup(hdev, btusb_driver.name); 3991 if (err) 3992 goto out_free_dev; 3993 3994 /* Transport specific configuration */ 3995 hdev->send = btusb_send_frame_intel; 3996 hdev->reset = btusb_intel_reset; 3997 3998 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 3999 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4000 4001 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4002 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4003 4004 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4005 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4006 } 4007 4008 if (id->driver_info & BTUSB_MARVELL) 4009 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4010 4011 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4012 (id->driver_info & BTUSB_MEDIATEK)) { 4013 hdev->setup = btusb_mtk_setup; 4014 hdev->shutdown = btusb_mtk_shutdown; 4015 hdev->manufacturer = 70; 4016 hdev->reset = btmtk_reset_sync; 4017 hdev->set_bdaddr = btmtk_set_bdaddr; 4018 hdev->send = btusb_send_frame_mtk; 4019 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4020 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4021 data->recv_acl = btmtk_usb_recv_acl; 4022 data->suspend = btmtk_usb_suspend; 4023 data->resume = btmtk_usb_resume; 4024 data->disconnect = btusb_mtk_disconnect; 4025 } 4026 4027 if (id->driver_info & BTUSB_SWAVE) { 4028 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4029 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4030 } 4031 4032 if (id->driver_info & BTUSB_INTEL_BOOT) { 4033 hdev->manufacturer = 2; 4034 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4035 } 4036 4037 if (id->driver_info & BTUSB_ATH3012) { 4038 data->setup_on_usb = btusb_setup_qca; 4039 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4040 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4041 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4042 } 4043 4044 if (id->driver_info & BTUSB_QCA_ROME) { 4045 data->setup_on_usb = btusb_setup_qca; 4046 hdev->shutdown = btusb_shutdown_qca; 4047 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4048 hdev->reset = btusb_qca_reset; 4049 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4050 btusb_check_needs_reset_resume(intf); 4051 } 4052 4053 if (id->driver_info & BTUSB_QCA_WCN6855) { 4054 data->qca_dump.id_vendor = id->idVendor; 4055 data->qca_dump.id_product = id->idProduct; 4056 data->recv_event = btusb_recv_evt_qca; 4057 data->recv_acl = btusb_recv_acl_qca; 4058 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4059 data->setup_on_usb = btusb_setup_qca; 4060 hdev->shutdown = btusb_shutdown_qca; 4061 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4062 hdev->reset = btusb_qca_reset; 4063 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4064 hci_set_msft_opcode(hdev, 0xFD70); 4065 } 4066 4067 if (id->driver_info & BTUSB_AMP) { 4068 /* AMP controllers do not support SCO packets */ 4069 data->isoc = NULL; 4070 } else { 4071 /* Interface orders are hardcoded in the specification */ 4072 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4073 data->isoc_ifnum = ifnum_base + 1; 4074 } 4075 4076 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4077 (id->driver_info & BTUSB_REALTEK)) { 4078 btrtl_set_driver_name(hdev, btusb_driver.name); 4079 hdev->setup = btusb_setup_realtek; 4080 hdev->shutdown = btrtl_shutdown_realtek; 4081 hdev->reset = btusb_rtl_reset; 4082 hdev->hw_error = btusb_rtl_hw_error; 4083 4084 /* Realtek devices need to set remote wakeup on auto-suspend */ 4085 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4086 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4087 } 4088 4089 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4090 /* Support is advertised, but not implemented */ 4091 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4092 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4093 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4094 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4095 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks); 4096 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks); 4097 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks); 4098 } 4099 4100 if (!reset) 4101 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4102 4103 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4104 if (!disable_scofix) 4105 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4106 } 4107 4108 if (id->driver_info & BTUSB_BROKEN_ISOC) 4109 data->isoc = NULL; 4110 4111 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4112 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4113 4114 if (id->driver_info & BTUSB_INVALID_LE_STATES) 4115 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks); 4116 4117 if (id->driver_info & BTUSB_DIGIANSWER) { 4118 data->cmdreq_type = USB_TYPE_VENDOR; 4119 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4120 } 4121 4122 if (id->driver_info & BTUSB_CSR) { 4123 struct usb_device *udev = data->udev; 4124 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4125 4126 /* Old firmware would otherwise execute USB reset */ 4127 if (bcdDevice < 0x117) 4128 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4129 4130 /* This must be set first in case we disable it for fakes */ 4131 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4132 4133 /* Fake CSR devices with broken commands */ 4134 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4135 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4136 hdev->setup = btusb_setup_csr; 4137 } 4138 4139 if (id->driver_info & BTUSB_SNIFFER) { 4140 struct usb_device *udev = data->udev; 4141 4142 /* New sniffer firmware has crippled HCI interface */ 4143 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4144 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4145 } 4146 4147 if (id->driver_info & BTUSB_INTEL_BOOT) { 4148 /* A bug in the bootloader causes that interrupt interface is 4149 * only enabled after receiving SetInterface(0, AltSetting=0). 4150 */ 4151 err = usb_set_interface(data->udev, 0, 0); 4152 if (err < 0) { 4153 BT_ERR("failed to set interface 0, alt 0 %d", err); 4154 goto out_free_dev; 4155 } 4156 } 4157 4158 if (data->isoc) { 4159 err = usb_driver_claim_interface(&btusb_driver, 4160 data->isoc, data); 4161 if (err < 0) 4162 goto out_free_dev; 4163 4164 err = device_create_file(&intf->dev, &dev_attr_isoc_alt); 4165 if (err) 4166 goto out_free_dev; 4167 } 4168 4169 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4170 if (!usb_driver_claim_interface(&btusb_driver, 4171 data->diag, data)) 4172 __set_diag_interface(hdev); 4173 else 4174 data->diag = NULL; 4175 } 4176 4177 if (enable_autosuspend) 4178 usb_enable_autosuspend(data->udev); 4179 4180 data->poll_sync = enable_poll_sync; 4181 4182 err = hci_register_dev(hdev); 4183 if (err < 0) 4184 goto out_free_dev; 4185 4186 usb_set_intfdata(intf, data); 4187 4188 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4189 &force_poll_sync_fops); 4190 4191 return 0; 4192 4193 out_free_dev: 4194 if (data->reset_gpio) 4195 gpiod_put(data->reset_gpio); 4196 hci_free_dev(hdev); 4197 return err; 4198 } 4199 4200 static void btusb_disconnect(struct usb_interface *intf) 4201 { 4202 struct btusb_data *data = usb_get_intfdata(intf); 4203 struct hci_dev *hdev; 4204 4205 BT_DBG("intf %p", intf); 4206 4207 if (!data) 4208 return; 4209 4210 hdev = data->hdev; 4211 usb_set_intfdata(data->intf, NULL); 4212 4213 if (data->isoc) { 4214 device_remove_file(&intf->dev, &dev_attr_isoc_alt); 4215 usb_set_intfdata(data->isoc, NULL); 4216 } 4217 4218 if (data->diag) 4219 usb_set_intfdata(data->diag, NULL); 4220 4221 if (data->disconnect) 4222 data->disconnect(hdev); 4223 4224 hci_unregister_dev(hdev); 4225 4226 if (intf == data->intf) { 4227 if (data->isoc) 4228 usb_driver_release_interface(&btusb_driver, data->isoc); 4229 if (data->diag) 4230 usb_driver_release_interface(&btusb_driver, data->diag); 4231 } else if (intf == data->isoc) { 4232 if (data->diag) 4233 usb_driver_release_interface(&btusb_driver, data->diag); 4234 usb_driver_release_interface(&btusb_driver, data->intf); 4235 } else if (intf == data->diag) { 4236 usb_driver_release_interface(&btusb_driver, data->intf); 4237 if (data->isoc) 4238 usb_driver_release_interface(&btusb_driver, data->isoc); 4239 } 4240 4241 if (data->oob_wake_irq) 4242 device_init_wakeup(&data->udev->dev, false); 4243 4244 if (data->reset_gpio) 4245 gpiod_put(data->reset_gpio); 4246 4247 hci_free_dev(hdev); 4248 } 4249 4250 #ifdef CONFIG_PM 4251 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4252 { 4253 struct btusb_data *data = usb_get_intfdata(intf); 4254 4255 BT_DBG("intf %p", intf); 4256 4257 /* Don't auto-suspend if there are connections; external suspend calls 4258 * shall never fail. 4259 */ 4260 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev)) 4261 return -EBUSY; 4262 4263 if (data->suspend_count++) 4264 return 0; 4265 4266 spin_lock_irq(&data->txlock); 4267 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4268 set_bit(BTUSB_SUSPENDING, &data->flags); 4269 spin_unlock_irq(&data->txlock); 4270 } else { 4271 spin_unlock_irq(&data->txlock); 4272 data->suspend_count--; 4273 return -EBUSY; 4274 } 4275 4276 cancel_work_sync(&data->work); 4277 4278 if (data->suspend) 4279 data->suspend(data->hdev); 4280 4281 btusb_stop_traffic(data); 4282 usb_kill_anchored_urbs(&data->tx_anchor); 4283 4284 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4285 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4286 enable_irq_wake(data->oob_wake_irq); 4287 enable_irq(data->oob_wake_irq); 4288 } 4289 4290 /* For global suspend, Realtek devices lose the loaded fw 4291 * in them. But for autosuspend, firmware should remain. 4292 * Actually, it depends on whether the usb host sends 4293 * set feature (enable wakeup) or not. 4294 */ 4295 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4296 if (PMSG_IS_AUTO(message) && 4297 device_can_wakeup(&data->udev->dev)) 4298 data->udev->do_remote_wakeup = 1; 4299 else if (!PMSG_IS_AUTO(message) && 4300 !device_may_wakeup(&data->udev->dev)) { 4301 data->udev->do_remote_wakeup = 0; 4302 data->udev->reset_resume = 1; 4303 } 4304 } 4305 4306 return 0; 4307 } 4308 4309 static void play_deferred(struct btusb_data *data) 4310 { 4311 struct urb *urb; 4312 int err; 4313 4314 while ((urb = usb_get_from_anchor(&data->deferred))) { 4315 usb_anchor_urb(urb, &data->tx_anchor); 4316 4317 err = usb_submit_urb(urb, GFP_ATOMIC); 4318 if (err < 0) { 4319 if (err != -EPERM && err != -ENODEV) 4320 BT_ERR("%s urb %p submission failed (%d)", 4321 data->hdev->name, urb, -err); 4322 kfree(urb->setup_packet); 4323 usb_unanchor_urb(urb); 4324 usb_free_urb(urb); 4325 break; 4326 } 4327 4328 data->tx_in_flight++; 4329 usb_free_urb(urb); 4330 } 4331 4332 /* Cleanup the rest deferred urbs. */ 4333 while ((urb = usb_get_from_anchor(&data->deferred))) { 4334 kfree(urb->setup_packet); 4335 usb_free_urb(urb); 4336 } 4337 } 4338 4339 static int btusb_resume(struct usb_interface *intf) 4340 { 4341 struct btusb_data *data = usb_get_intfdata(intf); 4342 struct hci_dev *hdev = data->hdev; 4343 int err = 0; 4344 4345 BT_DBG("intf %p", intf); 4346 4347 if (--data->suspend_count) 4348 return 0; 4349 4350 /* Disable only if not already disabled (keep it balanced) */ 4351 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4352 disable_irq(data->oob_wake_irq); 4353 disable_irq_wake(data->oob_wake_irq); 4354 } 4355 4356 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4357 goto done; 4358 4359 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4360 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4361 if (err < 0) { 4362 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4363 goto failed; 4364 } 4365 } 4366 4367 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4368 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4369 if (err < 0) { 4370 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4371 goto failed; 4372 } 4373 4374 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4375 } 4376 4377 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4378 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4379 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4380 else 4381 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4382 } 4383 4384 if (data->resume) 4385 data->resume(hdev); 4386 4387 spin_lock_irq(&data->txlock); 4388 play_deferred(data); 4389 clear_bit(BTUSB_SUSPENDING, &data->flags); 4390 spin_unlock_irq(&data->txlock); 4391 schedule_work(&data->work); 4392 4393 return 0; 4394 4395 failed: 4396 usb_scuttle_anchored_urbs(&data->deferred); 4397 done: 4398 spin_lock_irq(&data->txlock); 4399 clear_bit(BTUSB_SUSPENDING, &data->flags); 4400 spin_unlock_irq(&data->txlock); 4401 4402 return err; 4403 } 4404 #endif 4405 4406 #ifdef CONFIG_DEV_COREDUMP 4407 static void btusb_coredump(struct device *dev) 4408 { 4409 struct btusb_data *data = dev_get_drvdata(dev); 4410 struct hci_dev *hdev = data->hdev; 4411 4412 if (hdev->dump.coredump) 4413 hdev->dump.coredump(hdev); 4414 } 4415 #endif 4416 4417 static struct usb_driver btusb_driver = { 4418 .name = "btusb", 4419 .probe = btusb_probe, 4420 .disconnect = btusb_disconnect, 4421 #ifdef CONFIG_PM 4422 .suspend = btusb_suspend, 4423 .resume = btusb_resume, 4424 #endif 4425 .id_table = btusb_table, 4426 .supports_autosuspend = 1, 4427 .disable_hub_initiated_lpm = 1, 4428 4429 #ifdef CONFIG_DEV_COREDUMP 4430 .driver = { 4431 .coredump = btusb_coredump, 4432 }, 4433 #endif 4434 }; 4435 4436 module_usb_driver(btusb_driver); 4437 4438 module_param(disable_scofix, bool, 0644); 4439 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4440 4441 module_param(force_scofix, bool, 0644); 4442 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4443 4444 module_param(enable_autosuspend, bool, 0644); 4445 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4446 4447 module_param(reset, bool, 0644); 4448 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4449 4450 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4451 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4452 MODULE_VERSION(VERSION); 4453 MODULE_LICENSE("GPL"); 4454