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