1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Generic Bluetooth USB driver 5 * 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 7 */ 8 9 #include <linux/dmi.h> 10 #include <linux/module.h> 11 #include <linux/usb.h> 12 #include <linux/usb/quirks.h> 13 #include <linux/firmware.h> 14 #include <linux/iopoll.h> 15 #include <linux/of_device.h> 16 #include <linux/of_irq.h> 17 #include <linux/suspend.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/debugfs.h> 20 #include <linux/unaligned.h> 21 22 #include <net/bluetooth/bluetooth.h> 23 #include <net/bluetooth/hci_core.h> 24 25 #include "btintel.h" 26 #include "btbcm.h" 27 #include "btrtl.h" 28 #include "btmtk.h" 29 30 #define VERSION "0.8" 31 32 static bool disable_scofix; 33 static bool force_scofix; 34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 36 static bool reset = true; 37 static bool auto_isoc_alt = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTO_ISOC_ALT); 38 39 static struct usb_driver btusb_driver; 40 41 #define BTUSB_IGNORE BIT(0) 42 #define BTUSB_DIGIANSWER BIT(1) 43 #define BTUSB_CSR BIT(2) 44 #define BTUSB_SNIFFER BIT(3) 45 #define BTUSB_BCM92035 BIT(4) 46 #define BTUSB_BROKEN_ISOC BIT(5) 47 #define BTUSB_WRONG_SCO_MTU BIT(6) 48 #define BTUSB_ATH3012 BIT(7) 49 #define BTUSB_INTEL_COMBINED BIT(8) 50 #define BTUSB_INTEL_BOOT BIT(9) 51 #define BTUSB_BCM_PATCHRAM BIT(10) 52 #define BTUSB_MARVELL BIT(11) 53 #define BTUSB_SWAVE BIT(12) 54 #define BTUSB_AMP BIT(13) 55 #define BTUSB_QCA_ROME BIT(14) 56 #define BTUSB_BCM_APPLE BIT(15) 57 #define BTUSB_REALTEK BIT(16) 58 #define BTUSB_BCM2045 BIT(17) 59 #define BTUSB_IFNUM_2 BIT(18) 60 #define BTUSB_CW6622 BIT(19) 61 #define BTUSB_MEDIATEK BIT(20) 62 #define BTUSB_WIDEBAND_SPEECH BIT(21) 63 #define BTUSB_INVALID_LE_STATES BIT(22) 64 #define BTUSB_QCA_WCN6855 BIT(23) 65 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 66 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 67 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 68 #define BTUSB_ACTIONS_SEMI BIT(27) 69 70 static const struct usb_device_id btusb_table[] = { 71 /* Generic Bluetooth USB device */ 72 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 73 74 /* Generic Bluetooth AMP device */ 75 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 76 77 /* Generic Bluetooth USB interface */ 78 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 79 80 /* Apple-specific (Broadcom) devices */ 81 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 82 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 83 84 /* MediaTek MT76x0E */ 85 { USB_DEVICE(0x0e8d, 0x763f) }, 86 87 /* Broadcom SoftSailing reporting vendor specific */ 88 { USB_DEVICE(0x0a5c, 0x21e1) }, 89 90 /* Apple MacBookPro 7,1 */ 91 { USB_DEVICE(0x05ac, 0x8213) }, 92 93 /* Apple iMac11,1 */ 94 { USB_DEVICE(0x05ac, 0x8215) }, 95 96 /* Apple MacBookPro6,2 */ 97 { USB_DEVICE(0x05ac, 0x8218) }, 98 99 /* Apple MacBookAir3,1, MacBookAir3,2 */ 100 { USB_DEVICE(0x05ac, 0x821b) }, 101 102 /* Apple MacBookAir4,1 */ 103 { USB_DEVICE(0x05ac, 0x821f) }, 104 105 /* Apple MacBookPro8,2 */ 106 { USB_DEVICE(0x05ac, 0x821a) }, 107 108 /* Apple MacMini5,1 */ 109 { USB_DEVICE(0x05ac, 0x8281) }, 110 111 /* AVM BlueFRITZ! USB v2.0 */ 112 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 113 114 /* Bluetooth Ultraport Module from IBM */ 115 { USB_DEVICE(0x04bf, 0x030a) }, 116 117 /* ALPS Modules with non-standard id */ 118 { USB_DEVICE(0x044e, 0x3001) }, 119 { USB_DEVICE(0x044e, 0x3002) }, 120 121 /* Ericsson with non-standard id */ 122 { USB_DEVICE(0x0bdb, 0x1002) }, 123 124 /* Canyon CN-BTU1 with HID interfaces */ 125 { USB_DEVICE(0x0c10, 0x0000) }, 126 127 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 128 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 129 130 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 131 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 132 .driver_info = BTUSB_BCM_PATCHRAM }, 133 134 /* Broadcom BCM920703 (HTC Vive) */ 135 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 136 .driver_info = BTUSB_BCM_PATCHRAM }, 137 138 /* Foxconn - Hon Hai */ 139 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 140 .driver_info = BTUSB_BCM_PATCHRAM }, 141 142 /* Lite-On Technology - Broadcom based */ 143 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 144 .driver_info = BTUSB_BCM_PATCHRAM }, 145 146 /* Broadcom devices with vendor specific id */ 147 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 148 .driver_info = BTUSB_BCM_PATCHRAM }, 149 150 /* ASUSTek Computer - Broadcom based */ 151 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 152 .driver_info = BTUSB_BCM_PATCHRAM }, 153 154 /* Belkin F8065bf - Broadcom based */ 155 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 156 .driver_info = BTUSB_BCM_PATCHRAM }, 157 158 /* IMC Networks - Broadcom based */ 159 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 160 .driver_info = BTUSB_BCM_PATCHRAM }, 161 162 /* Dell Computer - Broadcom based */ 163 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 164 .driver_info = BTUSB_BCM_PATCHRAM }, 165 166 /* Toshiba Corp - Broadcom based */ 167 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 168 .driver_info = BTUSB_BCM_PATCHRAM }, 169 170 /* Intel Bluetooth USB Bootloader (RAM module) */ 171 { USB_DEVICE(0x8087, 0x0a5a), 172 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 173 174 { } /* Terminating entry */ 175 }; 176 177 MODULE_DEVICE_TABLE(usb, btusb_table); 178 179 static const struct usb_device_id quirks_table[] = { 180 /* CSR BlueCore devices */ 181 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 182 183 /* Broadcom BCM2033 without firmware */ 184 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 185 186 /* Broadcom BCM2045 devices */ 187 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 188 189 /* Atheros 3011 with sflash firmware */ 190 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 196 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 197 198 /* Atheros AR9285 Malbec with sflash firmware */ 199 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 200 201 /* Atheros 3012 with sflash firmware */ 202 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 252 253 /* Atheros AR5BBU12 with sflash firmware */ 254 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 255 256 /* Atheros AR5BBU12 with sflash firmware */ 257 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 258 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 259 260 /* QCA ROME chipset */ 261 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 262 BTUSB_WIDEBAND_SPEECH }, 263 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 264 BTUSB_WIDEBAND_SPEECH }, 265 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 266 BTUSB_WIDEBAND_SPEECH }, 267 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 268 BTUSB_WIDEBAND_SPEECH }, 269 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 270 BTUSB_WIDEBAND_SPEECH }, 271 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 272 BTUSB_WIDEBAND_SPEECH }, 273 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 274 BTUSB_WIDEBAND_SPEECH }, 275 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 276 BTUSB_WIDEBAND_SPEECH }, 277 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 278 BTUSB_WIDEBAND_SPEECH }, 279 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 280 BTUSB_WIDEBAND_SPEECH }, 281 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 282 BTUSB_WIDEBAND_SPEECH }, 283 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 284 BTUSB_WIDEBAND_SPEECH }, 285 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 286 BTUSB_WIDEBAND_SPEECH }, 287 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 288 BTUSB_WIDEBAND_SPEECH }, 289 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 290 BTUSB_WIDEBAND_SPEECH }, 291 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 292 BTUSB_WIDEBAND_SPEECH }, 293 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 294 BTUSB_WIDEBAND_SPEECH }, 295 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 296 BTUSB_WIDEBAND_SPEECH }, 297 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 298 BTUSB_WIDEBAND_SPEECH }, 299 300 /* QCA WCN6855 chipset */ 301 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 302 BTUSB_WIDEBAND_SPEECH }, 303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 304 BTUSB_WIDEBAND_SPEECH }, 305 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 306 BTUSB_WIDEBAND_SPEECH }, 307 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 308 BTUSB_WIDEBAND_SPEECH }, 309 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 310 BTUSB_WIDEBAND_SPEECH }, 311 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 312 BTUSB_WIDEBAND_SPEECH }, 313 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 314 BTUSB_WIDEBAND_SPEECH }, 315 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH }, 317 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 318 BTUSB_WIDEBAND_SPEECH }, 319 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 320 BTUSB_WIDEBAND_SPEECH }, 321 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH }, 323 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 324 BTUSB_WIDEBAND_SPEECH }, 325 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 326 BTUSB_WIDEBAND_SPEECH }, 327 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH }, 329 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 330 BTUSB_WIDEBAND_SPEECH }, 331 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 332 BTUSB_WIDEBAND_SPEECH }, 333 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH }, 335 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 336 BTUSB_WIDEBAND_SPEECH }, 337 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 338 BTUSB_WIDEBAND_SPEECH }, 339 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH }, 341 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 342 BTUSB_WIDEBAND_SPEECH }, 343 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 344 BTUSB_WIDEBAND_SPEECH }, 345 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH }, 347 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 348 BTUSB_WIDEBAND_SPEECH }, 349 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 350 BTUSB_WIDEBAND_SPEECH }, 351 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH }, 353 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 354 BTUSB_WIDEBAND_SPEECH }, 355 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 356 BTUSB_WIDEBAND_SPEECH }, 357 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH }, 359 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 360 BTUSB_WIDEBAND_SPEECH }, 361 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 362 BTUSB_WIDEBAND_SPEECH }, 363 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH }, 365 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 366 BTUSB_WIDEBAND_SPEECH }, 367 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 368 BTUSB_WIDEBAND_SPEECH }, 369 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH }, 371 372 /* QCA WCN785x chipset */ 373 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 374 BTUSB_WIDEBAND_SPEECH }, 375 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH }, 377 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 | 378 BTUSB_WIDEBAND_SPEECH }, 379 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 | 380 BTUSB_WIDEBAND_SPEECH }, 381 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH }, 383 384 /* Broadcom BCM2035 */ 385 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 386 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 387 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 388 389 /* Broadcom BCM2045 */ 390 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 391 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 392 393 /* IBM/Lenovo ThinkPad with Broadcom chip */ 394 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 395 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 396 397 /* HP laptop with Broadcom chip */ 398 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 399 400 /* Dell laptop with Broadcom chip */ 401 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 402 403 /* Dell Wireless 370 and 410 devices */ 404 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 405 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 406 407 /* Belkin F8T012 and F8T013 devices */ 408 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 409 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 410 411 /* Asus WL-BTD202 device */ 412 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 413 414 /* Kensington Bluetooth USB adapter */ 415 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 416 417 /* RTX Telecom based adapters with buggy SCO support */ 418 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 419 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 420 421 /* CONWISE Technology based adapters with buggy SCO support */ 422 { USB_DEVICE(0x0e5e, 0x6622), 423 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 424 425 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 426 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 427 428 /* Digianswer devices */ 429 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 430 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 431 432 /* CSR BlueCore Bluetooth Sniffer */ 433 { USB_DEVICE(0x0a12, 0x0002), 434 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 435 436 /* Frontline ComProbe Bluetooth Sniffer */ 437 { USB_DEVICE(0x16d3, 0x0002), 438 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 439 440 /* Marvell Bluetooth devices */ 441 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 442 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 443 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 444 445 /* Intel Bluetooth devices */ 446 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 447 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 448 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 449 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 450 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 451 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 452 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 453 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 454 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 455 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED }, 456 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 457 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 458 BTUSB_INTEL_NO_WBS_SUPPORT | 459 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 460 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 461 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 462 BTUSB_INTEL_NO_WBS_SUPPORT | 463 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 464 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 465 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 466 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 467 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 468 469 /* Other Intel Bluetooth devices */ 470 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 471 .driver_info = BTUSB_IGNORE }, 472 473 /* Realtek 8821CE Bluetooth devices */ 474 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 475 BTUSB_WIDEBAND_SPEECH }, 476 477 /* Realtek 8822CE Bluetooth devices */ 478 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 479 BTUSB_WIDEBAND_SPEECH }, 480 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 481 BTUSB_WIDEBAND_SPEECH }, 482 483 /* Realtek 8822CU Bluetooth devices */ 484 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 485 BTUSB_WIDEBAND_SPEECH }, 486 487 /* Realtek 8851BE Bluetooth devices */ 488 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, 489 490 /* Realtek 8852AE Bluetooth devices */ 491 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 492 BTUSB_WIDEBAND_SPEECH }, 493 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 494 BTUSB_WIDEBAND_SPEECH }, 495 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 496 BTUSB_WIDEBAND_SPEECH }, 497 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 498 BTUSB_WIDEBAND_SPEECH }, 499 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 500 BTUSB_WIDEBAND_SPEECH }, 501 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 502 BTUSB_WIDEBAND_SPEECH }, 503 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 504 BTUSB_WIDEBAND_SPEECH }, 505 506 /* Realtek 8852CE Bluetooth devices */ 507 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 508 BTUSB_WIDEBAND_SPEECH }, 509 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 510 BTUSB_WIDEBAND_SPEECH }, 511 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 512 BTUSB_WIDEBAND_SPEECH }, 513 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 514 BTUSB_WIDEBAND_SPEECH }, 515 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 516 BTUSB_WIDEBAND_SPEECH }, 517 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 518 BTUSB_WIDEBAND_SPEECH }, 519 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 520 BTUSB_WIDEBAND_SPEECH }, 521 522 /* Realtek 8852BE Bluetooth devices */ 523 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 524 BTUSB_WIDEBAND_SPEECH }, 525 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 526 BTUSB_WIDEBAND_SPEECH }, 527 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 528 BTUSB_WIDEBAND_SPEECH }, 529 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 530 BTUSB_WIDEBAND_SPEECH }, 531 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 532 BTUSB_WIDEBAND_SPEECH }, 533 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 534 BTUSB_WIDEBAND_SPEECH }, 535 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 536 BTUSB_WIDEBAND_SPEECH }, 537 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 538 BTUSB_WIDEBAND_SPEECH }, 539 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 540 BTUSB_WIDEBAND_SPEECH }, 541 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 542 BTUSB_WIDEBAND_SPEECH }, 543 544 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 545 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 546 BTUSB_WIDEBAND_SPEECH }, 547 548 /* Realtek 8922AE Bluetooth devices */ 549 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK | 550 BTUSB_WIDEBAND_SPEECH }, 551 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK | 552 BTUSB_WIDEBAND_SPEECH }, 553 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK | 554 BTUSB_WIDEBAND_SPEECH }, 555 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK | 556 BTUSB_WIDEBAND_SPEECH }, 557 558 /* Realtek Bluetooth devices */ 559 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 560 .driver_info = BTUSB_REALTEK }, 561 562 /* MediaTek Bluetooth devices */ 563 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 564 .driver_info = BTUSB_MEDIATEK | 565 BTUSB_WIDEBAND_SPEECH }, 566 567 /* Additional MediaTek MT7615E Bluetooth devices */ 568 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 569 570 /* Additional MediaTek MT7663 Bluetooth devices */ 571 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 572 BTUSB_WIDEBAND_SPEECH }, 573 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 574 BTUSB_WIDEBAND_SPEECH }, 575 576 /* Additional MediaTek MT7668 Bluetooth devices */ 577 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 578 BTUSB_WIDEBAND_SPEECH }, 579 580 /* Additional MediaTek MT7920 Bluetooth devices */ 581 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK | 582 BTUSB_WIDEBAND_SPEECH }, 583 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK | 584 BTUSB_WIDEBAND_SPEECH }, 585 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK | 586 BTUSB_WIDEBAND_SPEECH }, 587 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK | 588 BTUSB_WIDEBAND_SPEECH }, 589 590 /* Additional MediaTek MT7921 Bluetooth devices */ 591 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 592 BTUSB_WIDEBAND_SPEECH }, 593 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 594 BTUSB_WIDEBAND_SPEECH }, 595 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 596 BTUSB_WIDEBAND_SPEECH }, 597 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 598 BTUSB_WIDEBAND_SPEECH }, 599 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 600 BTUSB_WIDEBAND_SPEECH }, 601 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 602 BTUSB_WIDEBAND_SPEECH }, 603 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 604 BTUSB_WIDEBAND_SPEECH }, 605 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 606 BTUSB_WIDEBAND_SPEECH }, 607 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 608 BTUSB_WIDEBAND_SPEECH }, 609 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK | 610 BTUSB_WIDEBAND_SPEECH }, 611 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 612 BTUSB_WIDEBAND_SPEECH }, 613 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 614 BTUSB_WIDEBAND_SPEECH }, 615 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 616 BTUSB_WIDEBAND_SPEECH }, 617 618 /* MediaTek MT7922 Bluetooth devices */ 619 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 620 BTUSB_WIDEBAND_SPEECH }, 621 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK | 622 BTUSB_WIDEBAND_SPEECH }, 623 624 /* MediaTek MT7922A Bluetooth devices */ 625 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 626 BTUSB_WIDEBAND_SPEECH }, 627 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 628 BTUSB_WIDEBAND_SPEECH }, 629 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 630 BTUSB_WIDEBAND_SPEECH }, 631 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 632 BTUSB_WIDEBAND_SPEECH }, 633 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 634 BTUSB_WIDEBAND_SPEECH }, 635 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 636 BTUSB_WIDEBAND_SPEECH }, 637 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 638 BTUSB_WIDEBAND_SPEECH }, 639 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 640 BTUSB_WIDEBAND_SPEECH }, 641 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 642 BTUSB_WIDEBAND_SPEECH }, 643 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 644 BTUSB_WIDEBAND_SPEECH }, 645 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 646 BTUSB_WIDEBAND_SPEECH }, 647 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 648 BTUSB_WIDEBAND_SPEECH }, 649 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 650 BTUSB_WIDEBAND_SPEECH }, 651 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 652 BTUSB_WIDEBAND_SPEECH }, 653 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 654 BTUSB_WIDEBAND_SPEECH }, 655 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 656 BTUSB_WIDEBAND_SPEECH }, 657 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 658 BTUSB_WIDEBAND_SPEECH }, 659 660 /* Additional MediaTek MT7925 Bluetooth devices */ 661 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 662 BTUSB_WIDEBAND_SPEECH }, 663 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 664 BTUSB_WIDEBAND_SPEECH }, 665 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK | 666 BTUSB_WIDEBAND_SPEECH }, 667 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK | 668 BTUSB_WIDEBAND_SPEECH }, 669 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK | 670 BTUSB_WIDEBAND_SPEECH }, 671 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK | 672 BTUSB_WIDEBAND_SPEECH }, 673 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK | 674 BTUSB_WIDEBAND_SPEECH }, 675 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK | 676 BTUSB_WIDEBAND_SPEECH }, 677 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK | 678 BTUSB_WIDEBAND_SPEECH }, 679 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 680 BTUSB_WIDEBAND_SPEECH }, 681 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 682 BTUSB_WIDEBAND_SPEECH }, 683 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK | 684 BTUSB_WIDEBAND_SPEECH }, 685 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK | 686 BTUSB_WIDEBAND_SPEECH }, 687 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK | 688 BTUSB_WIDEBAND_SPEECH }, 689 690 /* Additional Realtek 8723AE Bluetooth devices */ 691 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 692 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 693 694 /* Additional Realtek 8723BE Bluetooth devices */ 695 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 696 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 697 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 698 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 699 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 700 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 701 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 702 703 /* Additional Realtek 8723BU Bluetooth devices */ 704 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 705 706 /* Additional Realtek 8723DE Bluetooth devices */ 707 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 708 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 709 710 /* Additional Realtek 8761BUV Bluetooth devices */ 711 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 712 BTUSB_WIDEBAND_SPEECH }, 713 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 714 BTUSB_WIDEBAND_SPEECH }, 715 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 716 BTUSB_WIDEBAND_SPEECH }, 717 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 718 BTUSB_WIDEBAND_SPEECH }, 719 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 720 BTUSB_WIDEBAND_SPEECH }, 721 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 722 BTUSB_WIDEBAND_SPEECH }, 723 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 724 BTUSB_WIDEBAND_SPEECH }, 725 726 /* Additional Realtek 8821AE Bluetooth devices */ 727 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 728 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 729 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 730 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 731 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 732 733 /* Additional Realtek 8822BE Bluetooth devices */ 734 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 735 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 736 737 /* Additional Realtek 8822CE Bluetooth devices */ 738 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 739 BTUSB_WIDEBAND_SPEECH }, 740 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 741 BTUSB_WIDEBAND_SPEECH }, 742 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 743 BTUSB_WIDEBAND_SPEECH }, 744 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 745 BTUSB_WIDEBAND_SPEECH }, 746 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 747 BTUSB_WIDEBAND_SPEECH }, 748 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 749 BTUSB_WIDEBAND_SPEECH }, 750 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 751 BTUSB_WIDEBAND_SPEECH }, 752 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 753 BTUSB_WIDEBAND_SPEECH }, 754 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 755 BTUSB_WIDEBAND_SPEECH }, 756 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 757 BTUSB_WIDEBAND_SPEECH }, 758 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 759 BTUSB_WIDEBAND_SPEECH }, 760 761 /* Actions Semiconductor ATS2851 based devices */ 762 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 763 764 /* Silicon Wave based devices */ 765 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 766 767 { } /* Terminating entry */ 768 }; 769 770 /* The Bluetooth USB module build into some devices needs to be reset on resume, 771 * this is a problem with the platform (likely shutting off all power) not with 772 * the module itself. So we use a DMI list to match known broken platforms. 773 */ 774 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 775 { 776 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 777 .matches = { 778 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 779 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 780 }, 781 }, 782 { 783 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 784 .matches = { 785 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 786 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 787 }, 788 }, 789 { 790 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 791 .matches = { 792 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 793 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 794 }, 795 }, 796 {} 797 }; 798 799 struct qca_dump_info { 800 /* fields for dump collection */ 801 u16 id_vendor; 802 u16 id_product; 803 u32 fw_version; 804 u32 controller_id; 805 u32 ram_dump_size; 806 u16 ram_dump_seqno; 807 }; 808 809 #define BTUSB_MAX_ISOC_FRAMES 10 810 811 #define BTUSB_INTR_RUNNING 0 812 #define BTUSB_BULK_RUNNING 1 813 #define BTUSB_ISOC_RUNNING 2 814 #define BTUSB_SUSPENDING 3 815 #define BTUSB_DID_ISO_RESUME 4 816 #define BTUSB_BOOTLOADER 5 817 #define BTUSB_DOWNLOADING 6 818 #define BTUSB_FIRMWARE_LOADED 7 819 #define BTUSB_FIRMWARE_FAILED 8 820 #define BTUSB_BOOTING 9 821 #define BTUSB_DIAG_RUNNING 10 822 #define BTUSB_OOB_WAKE_ENABLED 11 823 #define BTUSB_HW_RESET_ACTIVE 12 824 #define BTUSB_TX_WAIT_VND_EVT 13 825 #define BTUSB_WAKEUP_AUTOSUSPEND 14 826 #define BTUSB_USE_ALT3_FOR_WBS 15 827 #define BTUSB_ALT6_CONTINUOUS_TX 16 828 #define BTUSB_HW_SSR_ACTIVE 17 829 830 struct btusb_data { 831 struct hci_dev *hdev; 832 struct usb_device *udev; 833 struct usb_interface *intf; 834 struct usb_interface *isoc; 835 struct usb_interface *diag; 836 unsigned isoc_ifnum; 837 838 unsigned long flags; 839 840 bool poll_sync; 841 int intr_interval; 842 struct work_struct work; 843 struct work_struct waker; 844 struct delayed_work rx_work; 845 846 struct sk_buff_head acl_q; 847 848 struct usb_anchor deferred; 849 struct usb_anchor tx_anchor; 850 int tx_in_flight; 851 spinlock_t txlock; 852 853 struct usb_anchor intr_anchor; 854 struct usb_anchor bulk_anchor; 855 struct usb_anchor isoc_anchor; 856 struct usb_anchor diag_anchor; 857 struct usb_anchor ctrl_anchor; 858 spinlock_t rxlock; 859 860 struct sk_buff *evt_skb; 861 struct sk_buff *acl_skb; 862 struct sk_buff *sco_skb; 863 864 struct usb_endpoint_descriptor *intr_ep; 865 struct usb_endpoint_descriptor *bulk_tx_ep; 866 struct usb_endpoint_descriptor *bulk_rx_ep; 867 struct usb_endpoint_descriptor *isoc_tx_ep; 868 struct usb_endpoint_descriptor *isoc_rx_ep; 869 struct usb_endpoint_descriptor *diag_tx_ep; 870 struct usb_endpoint_descriptor *diag_rx_ep; 871 872 struct gpio_desc *reset_gpio; 873 874 __u8 cmdreq_type; 875 __u8 cmdreq; 876 877 unsigned int sco_num; 878 unsigned int air_mode; 879 bool usb_alt6_packet_flow; 880 int isoc_altsetting; 881 int suspend_count; 882 883 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 884 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 885 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 886 887 int (*setup_on_usb)(struct hci_dev *hdev); 888 889 int (*suspend)(struct hci_dev *hdev); 890 int (*resume)(struct hci_dev *hdev); 891 int (*disconnect)(struct hci_dev *hdev); 892 893 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 894 895 struct qca_dump_info qca_dump; 896 }; 897 898 static void btusb_reset(struct hci_dev *hdev) 899 { 900 struct btusb_data *data; 901 int err; 902 903 data = hci_get_drvdata(hdev); 904 /* This is not an unbalanced PM reference since the device will reset */ 905 err = usb_autopm_get_interface(data->intf); 906 if (err) { 907 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 908 return; 909 } 910 911 bt_dev_err(hdev, "Resetting usb device."); 912 usb_queue_reset_device(data->intf); 913 } 914 915 static void btusb_intel_reset(struct hci_dev *hdev) 916 { 917 struct btusb_data *data = hci_get_drvdata(hdev); 918 struct gpio_desc *reset_gpio = data->reset_gpio; 919 struct btintel_data *intel_data = hci_get_priv(hdev); 920 921 if (intel_data->acpi_reset_method) { 922 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 923 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 924 return; 925 } 926 927 bt_dev_err(hdev, "Initiating acpi reset method"); 928 /* If ACPI reset method fails, lets try with legacy GPIO 929 * toggling 930 */ 931 if (!intel_data->acpi_reset_method(hdev)) { 932 return; 933 } 934 } 935 936 if (!reset_gpio) { 937 btusb_reset(hdev); 938 return; 939 } 940 941 /* 942 * Toggle the hard reset line if the platform provides one. The reset 943 * is going to yank the device off the USB and then replug. So doing 944 * once is enough. The cleanup is handled correctly on the way out 945 * (standard USB disconnect), and the new device is detected cleanly 946 * and bound to the driver again like it should be. 947 */ 948 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 949 bt_dev_err(hdev, "last reset failed? Not resetting again"); 950 return; 951 } 952 953 bt_dev_err(hdev, "Initiating HW reset via gpio"); 954 gpiod_set_value_cansleep(reset_gpio, 1); 955 msleep(100); 956 gpiod_set_value_cansleep(reset_gpio, 0); 957 } 958 959 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 960 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 961 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 962 963 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 964 965 struct rtk_dev_coredump_hdr { 966 u8 type; 967 u8 code; 968 u8 reserved[2]; 969 } __packed; 970 971 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 972 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 973 { 974 struct sk_buff *skb; 975 976 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 977 if (!skb) 978 return; 979 980 skb_put_data(skb, hdr, sizeof(*hdr)); 981 if (len) 982 skb_put_data(skb, buf, len); 983 984 if (!hci_devcd_init(hdev, skb->len)) { 985 hci_devcd_append(hdev, skb); 986 hci_devcd_complete(hdev); 987 } else { 988 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 989 kfree_skb(skb); 990 } 991 } 992 993 static void btusb_rtl_reset(struct hci_dev *hdev) 994 { 995 struct btusb_data *data = hci_get_drvdata(hdev); 996 struct gpio_desc *reset_gpio = data->reset_gpio; 997 struct rtk_dev_coredump_hdr hdr = { 998 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 999 }; 1000 1001 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1002 1003 if (!reset_gpio) { 1004 btusb_reset(hdev); 1005 return; 1006 } 1007 1008 /* Toggle the hard reset line. The Realtek device is going to 1009 * yank itself off the USB and then replug. The cleanup is handled 1010 * correctly on the way out (standard USB disconnect), and the new 1011 * device is detected cleanly and bound to the driver again like 1012 * it should be. 1013 */ 1014 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1015 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1016 return; 1017 } 1018 1019 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1020 gpiod_set_value_cansleep(reset_gpio, 1); 1021 msleep(200); 1022 gpiod_set_value_cansleep(reset_gpio, 0); 1023 } 1024 1025 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1026 { 1027 struct rtk_dev_coredump_hdr hdr = { 1028 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1029 .code = code, 1030 }; 1031 1032 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1033 1034 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1035 } 1036 1037 static void btusb_qca_reset(struct hci_dev *hdev) 1038 { 1039 struct btusb_data *data = hci_get_drvdata(hdev); 1040 struct gpio_desc *reset_gpio = data->reset_gpio; 1041 1042 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1043 bt_dev_info(hdev, "Ramdump in progress, defer reset"); 1044 return; 1045 } 1046 1047 if (reset_gpio) { 1048 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1049 1050 /* Toggle the hard reset line. The qca bt device is going to 1051 * yank itself off the USB and then replug. The cleanup is handled 1052 * correctly on the way out (standard USB disconnect), and the new 1053 * device is detected cleanly and bound to the driver again like 1054 * it should be. 1055 */ 1056 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1057 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1058 return; 1059 } 1060 1061 gpiod_set_value_cansleep(reset_gpio, 0); 1062 msleep(200); 1063 gpiod_set_value_cansleep(reset_gpio, 1); 1064 1065 return; 1066 } 1067 1068 btusb_reset(hdev); 1069 } 1070 1071 static inline void btusb_free_frags(struct btusb_data *data) 1072 { 1073 unsigned long flags; 1074 1075 spin_lock_irqsave(&data->rxlock, flags); 1076 1077 dev_kfree_skb_irq(data->evt_skb); 1078 data->evt_skb = NULL; 1079 1080 dev_kfree_skb_irq(data->acl_skb); 1081 data->acl_skb = NULL; 1082 1083 dev_kfree_skb_irq(data->sco_skb); 1084 data->sco_skb = NULL; 1085 1086 spin_unlock_irqrestore(&data->rxlock, flags); 1087 } 1088 1089 static void btusb_sco_connected(struct btusb_data *data, struct sk_buff *skb) 1090 { 1091 struct hci_event_hdr *hdr = (void *) skb->data; 1092 struct hci_ev_sync_conn_complete *ev = 1093 (void *) skb->data + sizeof(*hdr); 1094 struct hci_dev *hdev = data->hdev; 1095 unsigned int notify_air_mode; 1096 1097 if (hci_skb_pkt_type(skb) != HCI_EVENT_PKT) 1098 return; 1099 1100 if (skb->len < sizeof(*hdr) || hdr->evt != HCI_EV_SYNC_CONN_COMPLETE) 1101 return; 1102 1103 if (skb->len != sizeof(*hdr) + sizeof(*ev) || ev->status) 1104 return; 1105 1106 switch (ev->air_mode) { 1107 case BT_CODEC_CVSD: 1108 notify_air_mode = HCI_NOTIFY_ENABLE_SCO_CVSD; 1109 break; 1110 1111 case BT_CODEC_TRANSPARENT: 1112 notify_air_mode = HCI_NOTIFY_ENABLE_SCO_TRANSP; 1113 break; 1114 1115 default: 1116 return; 1117 } 1118 1119 bt_dev_info(hdev, "enabling SCO with air mode %u", ev->air_mode); 1120 data->sco_num = 1; 1121 data->air_mode = notify_air_mode; 1122 schedule_work(&data->work); 1123 } 1124 1125 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1126 { 1127 if (data->intr_interval) { 1128 /* Trigger dequeue immediately if an event is received */ 1129 schedule_delayed_work(&data->rx_work, 0); 1130 } 1131 1132 /* Configure altsetting for HCI_USER_CHANNEL on SCO connected */ 1133 if (auto_isoc_alt && hci_dev_test_flag(data->hdev, HCI_USER_CHANNEL)) 1134 btusb_sco_connected(data, skb); 1135 1136 return data->recv_event(data->hdev, skb); 1137 } 1138 1139 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1140 { 1141 struct sk_buff *skb; 1142 unsigned long flags; 1143 int err = 0; 1144 1145 spin_lock_irqsave(&data->rxlock, flags); 1146 skb = data->evt_skb; 1147 1148 while (count) { 1149 int len; 1150 1151 if (!skb) { 1152 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1153 if (!skb) { 1154 err = -ENOMEM; 1155 break; 1156 } 1157 1158 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1159 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1160 } 1161 1162 len = min_t(uint, hci_skb_expect(skb), count); 1163 skb_put_data(skb, buffer, len); 1164 1165 count -= len; 1166 buffer += len; 1167 hci_skb_expect(skb) -= len; 1168 1169 if (skb->len == HCI_EVENT_HDR_SIZE) { 1170 /* Complete event header */ 1171 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1172 1173 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1174 kfree_skb(skb); 1175 skb = NULL; 1176 1177 err = -EILSEQ; 1178 break; 1179 } 1180 } 1181 1182 if (!hci_skb_expect(skb)) { 1183 /* Complete frame */ 1184 btusb_recv_event(data, skb); 1185 skb = NULL; 1186 } 1187 } 1188 1189 data->evt_skb = skb; 1190 spin_unlock_irqrestore(&data->rxlock, flags); 1191 1192 return err; 1193 } 1194 1195 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1196 { 1197 /* Only queue ACL packet if intr_interval is set as it means 1198 * force_poll_sync has been enabled. 1199 */ 1200 if (!data->intr_interval) 1201 return data->recv_acl(data->hdev, skb); 1202 1203 skb_queue_tail(&data->acl_q, skb); 1204 schedule_delayed_work(&data->rx_work, data->intr_interval); 1205 1206 return 0; 1207 } 1208 1209 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1210 { 1211 struct sk_buff *skb; 1212 unsigned long flags; 1213 int err = 0; 1214 1215 spin_lock_irqsave(&data->rxlock, flags); 1216 skb = data->acl_skb; 1217 1218 while (count) { 1219 int len; 1220 1221 if (!skb) { 1222 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1223 if (!skb) { 1224 err = -ENOMEM; 1225 break; 1226 } 1227 1228 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1229 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1230 } 1231 1232 len = min_t(uint, hci_skb_expect(skb), count); 1233 skb_put_data(skb, buffer, len); 1234 1235 count -= len; 1236 buffer += len; 1237 hci_skb_expect(skb) -= len; 1238 1239 if (skb->len == HCI_ACL_HDR_SIZE) { 1240 __le16 dlen = hci_acl_hdr(skb)->dlen; 1241 1242 /* Complete ACL header */ 1243 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1244 1245 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1246 kfree_skb(skb); 1247 skb = NULL; 1248 1249 err = -EILSEQ; 1250 break; 1251 } 1252 } 1253 1254 if (!hci_skb_expect(skb)) { 1255 /* Complete frame */ 1256 btusb_recv_acl(data, skb); 1257 skb = NULL; 1258 } 1259 } 1260 1261 data->acl_skb = skb; 1262 spin_unlock_irqrestore(&data->rxlock, flags); 1263 1264 return err; 1265 } 1266 1267 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1268 struct hci_sco_hdr *hdr) 1269 { 1270 __u16 handle; 1271 1272 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1273 // Can't validate, userspace controls everything. 1274 return true; 1275 1276 /* 1277 * USB isochronous transfers are not designed to be reliable and may 1278 * lose fragments. When this happens, the next first fragment 1279 * encountered might actually be a continuation fragment. 1280 * Validate the handle to detect it and drop it, or else the upper 1281 * layer will get garbage for a while. 1282 */ 1283 1284 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1285 1286 switch (hci_conn_lookup_type(hdev, handle)) { 1287 case SCO_LINK: 1288 case ESCO_LINK: 1289 return true; 1290 default: 1291 return false; 1292 } 1293 } 1294 1295 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1296 { 1297 struct sk_buff *skb; 1298 unsigned long flags; 1299 int err = 0; 1300 1301 spin_lock_irqsave(&data->rxlock, flags); 1302 skb = data->sco_skb; 1303 1304 while (count) { 1305 int len; 1306 1307 if (!skb) { 1308 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1309 if (!skb) { 1310 err = -ENOMEM; 1311 break; 1312 } 1313 1314 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1315 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1316 } 1317 1318 len = min_t(uint, hci_skb_expect(skb), count); 1319 skb_put_data(skb, buffer, len); 1320 1321 count -= len; 1322 buffer += len; 1323 hci_skb_expect(skb) -= len; 1324 1325 if (skb->len == HCI_SCO_HDR_SIZE) { 1326 /* Complete SCO header */ 1327 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1328 1329 hci_skb_expect(skb) = hdr->dlen; 1330 1331 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1332 !btusb_validate_sco_handle(data->hdev, hdr)) { 1333 kfree_skb(skb); 1334 skb = NULL; 1335 1336 err = -EILSEQ; 1337 break; 1338 } 1339 } 1340 1341 if (!hci_skb_expect(skb)) { 1342 /* Complete frame */ 1343 hci_recv_frame(data->hdev, skb); 1344 skb = NULL; 1345 } 1346 } 1347 1348 data->sco_skb = skb; 1349 spin_unlock_irqrestore(&data->rxlock, flags); 1350 1351 return err; 1352 } 1353 1354 static void btusb_intr_complete(struct urb *urb) 1355 { 1356 struct hci_dev *hdev = urb->context; 1357 struct btusb_data *data = hci_get_drvdata(hdev); 1358 int err; 1359 1360 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1361 urb->actual_length); 1362 1363 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1364 return; 1365 1366 if (urb->status == 0) { 1367 hdev->stat.byte_rx += urb->actual_length; 1368 1369 if (btusb_recv_intr(data, urb->transfer_buffer, 1370 urb->actual_length) < 0) { 1371 bt_dev_err(hdev, "corrupted event packet"); 1372 hdev->stat.err_rx++; 1373 } 1374 } else if (urb->status == -ENOENT) { 1375 /* Avoid suspend failed when usb_kill_urb */ 1376 return; 1377 } 1378 1379 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1380 return; 1381 1382 usb_mark_last_busy(data->udev); 1383 usb_anchor_urb(urb, &data->intr_anchor); 1384 1385 err = usb_submit_urb(urb, GFP_ATOMIC); 1386 if (err < 0) { 1387 /* -EPERM: urb is being killed; 1388 * -ENODEV: device got disconnected 1389 */ 1390 if (err != -EPERM && err != -ENODEV) 1391 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1392 urb, -err); 1393 if (err != -EPERM) 1394 hci_cmd_sync_cancel(hdev, -err); 1395 usb_unanchor_urb(urb); 1396 } 1397 } 1398 1399 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1400 { 1401 struct btusb_data *data = hci_get_drvdata(hdev); 1402 struct urb *urb; 1403 unsigned char *buf; 1404 unsigned int pipe; 1405 int err, size; 1406 1407 BT_DBG("%s", hdev->name); 1408 1409 if (!data->intr_ep) 1410 return -ENODEV; 1411 1412 urb = usb_alloc_urb(0, mem_flags); 1413 if (!urb) 1414 return -ENOMEM; 1415 1416 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1417 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1418 /* Fake CSR devices don't seem to support sort-transter */ 1419 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1420 else 1421 /* Use maximum HCI Event size so the USB stack handles 1422 * ZPL/short-transfer automatically. 1423 */ 1424 size = HCI_MAX_EVENT_SIZE; 1425 1426 buf = kmalloc(size, mem_flags); 1427 if (!buf) { 1428 usb_free_urb(urb); 1429 return -ENOMEM; 1430 } 1431 1432 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1433 1434 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1435 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1436 1437 urb->transfer_flags |= URB_FREE_BUFFER; 1438 1439 usb_anchor_urb(urb, &data->intr_anchor); 1440 1441 err = usb_submit_urb(urb, mem_flags); 1442 if (err < 0) { 1443 if (err != -EPERM && err != -ENODEV) 1444 bt_dev_err(hdev, "urb %p submission failed (%d)", 1445 urb, -err); 1446 if (err != -EPERM) 1447 hci_cmd_sync_cancel(hdev, -err); 1448 usb_unanchor_urb(urb); 1449 } 1450 1451 /* Only initialize intr_interval if URB poll sync is enabled */ 1452 if (!data->poll_sync) 1453 goto done; 1454 1455 /* The units are frames (milliseconds) for full and low speed devices, 1456 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1457 * devices. 1458 * 1459 * This is done once on open/resume so it shouldn't change even if 1460 * force_poll_sync changes. 1461 */ 1462 switch (urb->dev->speed) { 1463 case USB_SPEED_SUPER_PLUS: 1464 case USB_SPEED_SUPER: /* units are 125us */ 1465 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1466 break; 1467 default: 1468 data->intr_interval = msecs_to_jiffies(urb->interval); 1469 break; 1470 } 1471 1472 done: 1473 usb_free_urb(urb); 1474 1475 return err; 1476 } 1477 1478 static void btusb_bulk_complete(struct urb *urb) 1479 { 1480 struct hci_dev *hdev = urb->context; 1481 struct btusb_data *data = hci_get_drvdata(hdev); 1482 int err; 1483 1484 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1485 urb->actual_length); 1486 1487 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1488 return; 1489 1490 if (urb->status == 0) { 1491 hdev->stat.byte_rx += urb->actual_length; 1492 1493 if (data->recv_bulk(data, urb->transfer_buffer, 1494 urb->actual_length) < 0) { 1495 bt_dev_err(hdev, "corrupted ACL packet"); 1496 hdev->stat.err_rx++; 1497 } 1498 } else if (urb->status == -ENOENT) { 1499 /* Avoid suspend failed when usb_kill_urb */ 1500 return; 1501 } 1502 1503 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1504 return; 1505 1506 usb_anchor_urb(urb, &data->bulk_anchor); 1507 usb_mark_last_busy(data->udev); 1508 1509 err = usb_submit_urb(urb, GFP_ATOMIC); 1510 if (err < 0) { 1511 /* -EPERM: urb is being killed; 1512 * -ENODEV: device got disconnected 1513 */ 1514 if (err != -EPERM && err != -ENODEV) 1515 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1516 urb, -err); 1517 usb_unanchor_urb(urb); 1518 } 1519 } 1520 1521 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1522 { 1523 struct btusb_data *data = hci_get_drvdata(hdev); 1524 struct urb *urb; 1525 unsigned char *buf; 1526 unsigned int pipe; 1527 int err, size = HCI_MAX_FRAME_SIZE; 1528 1529 BT_DBG("%s", hdev->name); 1530 1531 if (!data->bulk_rx_ep) 1532 return -ENODEV; 1533 1534 urb = usb_alloc_urb(0, mem_flags); 1535 if (!urb) 1536 return -ENOMEM; 1537 1538 buf = kmalloc(size, mem_flags); 1539 if (!buf) { 1540 usb_free_urb(urb); 1541 return -ENOMEM; 1542 } 1543 1544 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1545 1546 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1547 btusb_bulk_complete, hdev); 1548 1549 urb->transfer_flags |= URB_FREE_BUFFER; 1550 1551 usb_mark_last_busy(data->udev); 1552 usb_anchor_urb(urb, &data->bulk_anchor); 1553 1554 err = usb_submit_urb(urb, mem_flags); 1555 if (err < 0) { 1556 if (err != -EPERM && err != -ENODEV) 1557 bt_dev_err(hdev, "urb %p submission failed (%d)", 1558 urb, -err); 1559 usb_unanchor_urb(urb); 1560 } 1561 1562 usb_free_urb(urb); 1563 1564 return err; 1565 } 1566 1567 static void btusb_isoc_complete(struct urb *urb) 1568 { 1569 struct hci_dev *hdev = urb->context; 1570 struct btusb_data *data = hci_get_drvdata(hdev); 1571 int i, err; 1572 1573 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1574 urb->actual_length); 1575 1576 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1577 return; 1578 1579 if (urb->status == 0) { 1580 for (i = 0; i < urb->number_of_packets; i++) { 1581 unsigned int offset = urb->iso_frame_desc[i].offset; 1582 unsigned int length = urb->iso_frame_desc[i].actual_length; 1583 1584 if (urb->iso_frame_desc[i].status) 1585 continue; 1586 1587 hdev->stat.byte_rx += length; 1588 1589 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1590 length) < 0) { 1591 bt_dev_err(hdev, "corrupted SCO packet"); 1592 hdev->stat.err_rx++; 1593 } 1594 } 1595 } else if (urb->status == -ENOENT) { 1596 /* Avoid suspend failed when usb_kill_urb */ 1597 return; 1598 } 1599 1600 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1601 return; 1602 1603 usb_anchor_urb(urb, &data->isoc_anchor); 1604 1605 err = usb_submit_urb(urb, GFP_ATOMIC); 1606 if (err < 0) { 1607 /* -EPERM: urb is being killed; 1608 * -ENODEV: device got disconnected 1609 */ 1610 if (err != -EPERM && err != -ENODEV) 1611 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1612 urb, -err); 1613 usb_unanchor_urb(urb); 1614 } 1615 } 1616 1617 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1618 int mtu, struct btusb_data *data) 1619 { 1620 int i = 0, offset = 0; 1621 unsigned int interval; 1622 1623 BT_DBG("len %d mtu %d", len, mtu); 1624 1625 /* For mSBC ALT 6 settings some chips need to transmit the data 1626 * continuously without the zero length of USB packets. 1627 */ 1628 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1629 goto ignore_usb_alt6_packet_flow; 1630 1631 /* For mSBC ALT 6 setting the host will send the packet at continuous 1632 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1633 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1634 * To maintain the rate we send 63bytes of usb packets alternatively for 1635 * 7ms and 8ms to maintain the rate as 7.5ms. 1636 */ 1637 if (data->usb_alt6_packet_flow) { 1638 interval = 7; 1639 data->usb_alt6_packet_flow = false; 1640 } else { 1641 interval = 6; 1642 data->usb_alt6_packet_flow = true; 1643 } 1644 1645 for (i = 0; i < interval; i++) { 1646 urb->iso_frame_desc[i].offset = offset; 1647 urb->iso_frame_desc[i].length = offset; 1648 } 1649 1650 ignore_usb_alt6_packet_flow: 1651 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1652 urb->iso_frame_desc[i].offset = offset; 1653 urb->iso_frame_desc[i].length = len; 1654 i++; 1655 } 1656 1657 urb->number_of_packets = i; 1658 } 1659 1660 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1661 { 1662 int i, offset = 0; 1663 1664 BT_DBG("len %d mtu %d", len, mtu); 1665 1666 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1667 i++, offset += mtu, len -= mtu) { 1668 urb->iso_frame_desc[i].offset = offset; 1669 urb->iso_frame_desc[i].length = mtu; 1670 } 1671 1672 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1673 urb->iso_frame_desc[i].offset = offset; 1674 urb->iso_frame_desc[i].length = len; 1675 i++; 1676 } 1677 1678 urb->number_of_packets = i; 1679 } 1680 1681 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1682 { 1683 struct btusb_data *data = hci_get_drvdata(hdev); 1684 struct urb *urb; 1685 unsigned char *buf; 1686 unsigned int pipe; 1687 int err, size; 1688 1689 BT_DBG("%s", hdev->name); 1690 1691 if (!data->isoc_rx_ep) 1692 return -ENODEV; 1693 1694 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1695 if (!urb) 1696 return -ENOMEM; 1697 1698 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1699 BTUSB_MAX_ISOC_FRAMES; 1700 1701 buf = kmalloc(size, mem_flags); 1702 if (!buf) { 1703 usb_free_urb(urb); 1704 return -ENOMEM; 1705 } 1706 1707 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1708 1709 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1710 hdev, data->isoc_rx_ep->bInterval); 1711 1712 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1713 1714 __fill_isoc_descriptor(urb, size, 1715 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1716 1717 usb_anchor_urb(urb, &data->isoc_anchor); 1718 1719 err = usb_submit_urb(urb, mem_flags); 1720 if (err < 0) { 1721 if (err != -EPERM && err != -ENODEV) 1722 bt_dev_err(hdev, "urb %p submission failed (%d)", 1723 urb, -err); 1724 usb_unanchor_urb(urb); 1725 } 1726 1727 usb_free_urb(urb); 1728 1729 return err; 1730 } 1731 1732 static void btusb_diag_complete(struct urb *urb) 1733 { 1734 struct hci_dev *hdev = urb->context; 1735 struct btusb_data *data = hci_get_drvdata(hdev); 1736 int err; 1737 1738 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1739 urb->actual_length); 1740 1741 if (urb->status == 0) { 1742 struct sk_buff *skb; 1743 1744 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1745 if (skb) { 1746 skb_put_data(skb, urb->transfer_buffer, 1747 urb->actual_length); 1748 hci_recv_diag(hdev, skb); 1749 } 1750 } else if (urb->status == -ENOENT) { 1751 /* Avoid suspend failed when usb_kill_urb */ 1752 return; 1753 } 1754 1755 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1756 return; 1757 1758 usb_anchor_urb(urb, &data->diag_anchor); 1759 usb_mark_last_busy(data->udev); 1760 1761 err = usb_submit_urb(urb, GFP_ATOMIC); 1762 if (err < 0) { 1763 /* -EPERM: urb is being killed; 1764 * -ENODEV: device got disconnected 1765 */ 1766 if (err != -EPERM && err != -ENODEV) 1767 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1768 urb, -err); 1769 usb_unanchor_urb(urb); 1770 } 1771 } 1772 1773 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1774 { 1775 struct btusb_data *data = hci_get_drvdata(hdev); 1776 struct urb *urb; 1777 unsigned char *buf; 1778 unsigned int pipe; 1779 int err, size = HCI_MAX_FRAME_SIZE; 1780 1781 BT_DBG("%s", hdev->name); 1782 1783 if (!data->diag_rx_ep) 1784 return -ENODEV; 1785 1786 urb = usb_alloc_urb(0, mem_flags); 1787 if (!urb) 1788 return -ENOMEM; 1789 1790 buf = kmalloc(size, mem_flags); 1791 if (!buf) { 1792 usb_free_urb(urb); 1793 return -ENOMEM; 1794 } 1795 1796 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1797 1798 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1799 btusb_diag_complete, hdev); 1800 1801 urb->transfer_flags |= URB_FREE_BUFFER; 1802 1803 usb_mark_last_busy(data->udev); 1804 usb_anchor_urb(urb, &data->diag_anchor); 1805 1806 err = usb_submit_urb(urb, mem_flags); 1807 if (err < 0) { 1808 if (err != -EPERM && err != -ENODEV) 1809 bt_dev_err(hdev, "urb %p submission failed (%d)", 1810 urb, -err); 1811 usb_unanchor_urb(urb); 1812 } 1813 1814 usb_free_urb(urb); 1815 1816 return err; 1817 } 1818 1819 static void btusb_tx_complete(struct urb *urb) 1820 { 1821 struct sk_buff *skb = urb->context; 1822 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1823 struct btusb_data *data = hci_get_drvdata(hdev); 1824 unsigned long flags; 1825 1826 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1827 urb->actual_length); 1828 1829 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1830 goto done; 1831 1832 if (!urb->status) { 1833 hdev->stat.byte_tx += urb->transfer_buffer_length; 1834 } else { 1835 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1836 hci_cmd_sync_cancel(hdev, -urb->status); 1837 hdev->stat.err_tx++; 1838 } 1839 1840 done: 1841 spin_lock_irqsave(&data->txlock, flags); 1842 data->tx_in_flight--; 1843 spin_unlock_irqrestore(&data->txlock, flags); 1844 1845 kfree(urb->setup_packet); 1846 1847 kfree_skb(skb); 1848 } 1849 1850 static void btusb_isoc_tx_complete(struct urb *urb) 1851 { 1852 struct sk_buff *skb = urb->context; 1853 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1854 1855 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1856 urb->actual_length); 1857 1858 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1859 goto done; 1860 1861 if (!urb->status) 1862 hdev->stat.byte_tx += urb->transfer_buffer_length; 1863 else 1864 hdev->stat.err_tx++; 1865 1866 done: 1867 kfree(urb->setup_packet); 1868 1869 kfree_skb(skb); 1870 } 1871 1872 static int btusb_open(struct hci_dev *hdev) 1873 { 1874 struct btusb_data *data = hci_get_drvdata(hdev); 1875 int err; 1876 1877 BT_DBG("%s", hdev->name); 1878 1879 err = usb_autopm_get_interface(data->intf); 1880 if (err < 0) 1881 return err; 1882 1883 /* Patching USB firmware files prior to starting any URBs of HCI path 1884 * It is more safe to use USB bulk channel for downloading USB patch 1885 */ 1886 if (data->setup_on_usb) { 1887 err = data->setup_on_usb(hdev); 1888 if (err < 0) 1889 goto setup_fail; 1890 } 1891 1892 data->intf->needs_remote_wakeup = 1; 1893 1894 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1895 goto done; 1896 1897 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1898 if (err < 0) 1899 goto failed; 1900 1901 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1902 if (err < 0) { 1903 usb_kill_anchored_urbs(&data->intr_anchor); 1904 goto failed; 1905 } 1906 1907 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1908 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1909 1910 if (data->diag) { 1911 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1912 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1913 } 1914 1915 done: 1916 usb_autopm_put_interface(data->intf); 1917 return 0; 1918 1919 failed: 1920 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1921 setup_fail: 1922 usb_autopm_put_interface(data->intf); 1923 return err; 1924 } 1925 1926 static void btusb_stop_traffic(struct btusb_data *data) 1927 { 1928 usb_kill_anchored_urbs(&data->intr_anchor); 1929 usb_kill_anchored_urbs(&data->bulk_anchor); 1930 usb_kill_anchored_urbs(&data->isoc_anchor); 1931 usb_kill_anchored_urbs(&data->diag_anchor); 1932 usb_kill_anchored_urbs(&data->ctrl_anchor); 1933 } 1934 1935 static int btusb_close(struct hci_dev *hdev) 1936 { 1937 struct btusb_data *data = hci_get_drvdata(hdev); 1938 int err; 1939 1940 BT_DBG("%s", hdev->name); 1941 1942 cancel_delayed_work(&data->rx_work); 1943 cancel_work_sync(&data->work); 1944 cancel_work_sync(&data->waker); 1945 1946 skb_queue_purge(&data->acl_q); 1947 1948 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1949 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1950 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1951 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1952 1953 btusb_stop_traffic(data); 1954 btusb_free_frags(data); 1955 1956 err = usb_autopm_get_interface(data->intf); 1957 if (err < 0) 1958 goto failed; 1959 1960 data->intf->needs_remote_wakeup = 0; 1961 1962 /* Enable remote wake up for auto-suspend */ 1963 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1964 data->intf->needs_remote_wakeup = 1; 1965 1966 usb_autopm_put_interface(data->intf); 1967 1968 failed: 1969 usb_scuttle_anchored_urbs(&data->deferred); 1970 return 0; 1971 } 1972 1973 static int btusb_flush(struct hci_dev *hdev) 1974 { 1975 struct btusb_data *data = hci_get_drvdata(hdev); 1976 1977 BT_DBG("%s", hdev->name); 1978 1979 cancel_delayed_work(&data->rx_work); 1980 1981 skb_queue_purge(&data->acl_q); 1982 1983 usb_kill_anchored_urbs(&data->tx_anchor); 1984 btusb_free_frags(data); 1985 1986 return 0; 1987 } 1988 1989 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1990 { 1991 struct btusb_data *data = hci_get_drvdata(hdev); 1992 struct usb_ctrlrequest *dr; 1993 struct urb *urb; 1994 unsigned int pipe; 1995 1996 urb = usb_alloc_urb(0, GFP_KERNEL); 1997 if (!urb) 1998 return ERR_PTR(-ENOMEM); 1999 2000 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2001 if (!dr) { 2002 usb_free_urb(urb); 2003 return ERR_PTR(-ENOMEM); 2004 } 2005 2006 dr->bRequestType = data->cmdreq_type; 2007 dr->bRequest = data->cmdreq; 2008 dr->wIndex = 0; 2009 dr->wValue = 0; 2010 dr->wLength = __cpu_to_le16(skb->len); 2011 2012 pipe = usb_sndctrlpipe(data->udev, 0x00); 2013 2014 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2015 skb->data, skb->len, btusb_tx_complete, skb); 2016 2017 skb->dev = (void *)hdev; 2018 2019 return urb; 2020 } 2021 2022 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2023 { 2024 struct btusb_data *data = hci_get_drvdata(hdev); 2025 struct urb *urb; 2026 unsigned int pipe; 2027 2028 if (!data->bulk_tx_ep) 2029 return ERR_PTR(-ENODEV); 2030 2031 urb = usb_alloc_urb(0, GFP_KERNEL); 2032 if (!urb) 2033 return ERR_PTR(-ENOMEM); 2034 2035 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2036 2037 usb_fill_bulk_urb(urb, data->udev, pipe, 2038 skb->data, skb->len, btusb_tx_complete, skb); 2039 2040 skb->dev = (void *)hdev; 2041 2042 return urb; 2043 } 2044 2045 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2046 { 2047 struct btusb_data *data = hci_get_drvdata(hdev); 2048 struct urb *urb; 2049 unsigned int pipe; 2050 2051 if (!data->isoc_tx_ep) 2052 return ERR_PTR(-ENODEV); 2053 2054 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2055 if (!urb) 2056 return ERR_PTR(-ENOMEM); 2057 2058 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2059 2060 usb_fill_int_urb(urb, data->udev, pipe, 2061 skb->data, skb->len, btusb_isoc_tx_complete, 2062 skb, data->isoc_tx_ep->bInterval); 2063 2064 urb->transfer_flags = URB_ISO_ASAP; 2065 2066 if (data->isoc_altsetting == 6) 2067 __fill_isoc_descriptor_msbc(urb, skb->len, 2068 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2069 data); 2070 else 2071 __fill_isoc_descriptor(urb, skb->len, 2072 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2073 skb->dev = (void *)hdev; 2074 2075 return urb; 2076 } 2077 2078 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2079 { 2080 struct btusb_data *data = hci_get_drvdata(hdev); 2081 int err; 2082 2083 usb_anchor_urb(urb, &data->tx_anchor); 2084 2085 err = usb_submit_urb(urb, GFP_KERNEL); 2086 if (err < 0) { 2087 if (err != -EPERM && err != -ENODEV) 2088 bt_dev_err(hdev, "urb %p submission failed (%d)", 2089 urb, -err); 2090 kfree(urb->setup_packet); 2091 usb_unanchor_urb(urb); 2092 } else { 2093 usb_mark_last_busy(data->udev); 2094 } 2095 2096 usb_free_urb(urb); 2097 return err; 2098 } 2099 2100 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2101 { 2102 struct btusb_data *data = hci_get_drvdata(hdev); 2103 unsigned long flags; 2104 bool suspending; 2105 2106 spin_lock_irqsave(&data->txlock, flags); 2107 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2108 if (!suspending) 2109 data->tx_in_flight++; 2110 spin_unlock_irqrestore(&data->txlock, flags); 2111 2112 if (!suspending) 2113 return submit_tx_urb(hdev, urb); 2114 2115 usb_anchor_urb(urb, &data->deferred); 2116 schedule_work(&data->waker); 2117 2118 usb_free_urb(urb); 2119 return 0; 2120 } 2121 2122 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2123 { 2124 struct urb *urb; 2125 2126 BT_DBG("%s", hdev->name); 2127 2128 switch (hci_skb_pkt_type(skb)) { 2129 case HCI_COMMAND_PKT: 2130 urb = alloc_ctrl_urb(hdev, skb); 2131 if (IS_ERR(urb)) 2132 return PTR_ERR(urb); 2133 2134 hdev->stat.cmd_tx++; 2135 return submit_or_queue_tx_urb(hdev, urb); 2136 2137 case HCI_ACLDATA_PKT: 2138 urb = alloc_bulk_urb(hdev, skb); 2139 if (IS_ERR(urb)) 2140 return PTR_ERR(urb); 2141 2142 hdev->stat.acl_tx++; 2143 return submit_or_queue_tx_urb(hdev, urb); 2144 2145 case HCI_SCODATA_PKT: 2146 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2147 hci_conn_num(hdev, SCO_LINK) < 1) 2148 return -ENODEV; 2149 2150 urb = alloc_isoc_urb(hdev, skb); 2151 if (IS_ERR(urb)) 2152 return PTR_ERR(urb); 2153 2154 hdev->stat.sco_tx++; 2155 return submit_tx_urb(hdev, urb); 2156 2157 case HCI_ISODATA_PKT: 2158 urb = alloc_bulk_urb(hdev, skb); 2159 if (IS_ERR(urb)) 2160 return PTR_ERR(urb); 2161 2162 return submit_or_queue_tx_urb(hdev, urb); 2163 } 2164 2165 return -EILSEQ; 2166 } 2167 2168 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2169 { 2170 struct btusb_data *data = hci_get_drvdata(hdev); 2171 2172 BT_DBG("%s evt %d", hdev->name, evt); 2173 2174 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2175 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2176 data->air_mode = evt; 2177 schedule_work(&data->work); 2178 } 2179 } 2180 2181 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2182 { 2183 struct btusb_data *data = hci_get_drvdata(hdev); 2184 struct usb_interface *intf = data->isoc; 2185 struct usb_endpoint_descriptor *ep_desc; 2186 int i, err; 2187 2188 if (!data->isoc) 2189 return -ENODEV; 2190 2191 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2192 if (err < 0) { 2193 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2194 return err; 2195 } 2196 2197 data->isoc_altsetting = altsetting; 2198 2199 data->isoc_tx_ep = NULL; 2200 data->isoc_rx_ep = NULL; 2201 2202 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2203 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2204 2205 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2206 data->isoc_tx_ep = ep_desc; 2207 continue; 2208 } 2209 2210 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2211 data->isoc_rx_ep = ep_desc; 2212 continue; 2213 } 2214 } 2215 2216 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2217 bt_dev_err(hdev, "invalid SCO descriptors"); 2218 return -ENODEV; 2219 } 2220 2221 return 0; 2222 } 2223 2224 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2225 { 2226 struct btusb_data *data = hci_get_drvdata(hdev); 2227 int err; 2228 2229 if (data->isoc_altsetting != new_alts) { 2230 unsigned long flags; 2231 2232 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2233 usb_kill_anchored_urbs(&data->isoc_anchor); 2234 2235 /* When isochronous alternate setting needs to be 2236 * changed, because SCO connection has been added 2237 * or removed, a packet fragment may be left in the 2238 * reassembling state. This could lead to wrongly 2239 * assembled fragments. 2240 * 2241 * Clear outstanding fragment when selecting a new 2242 * alternate setting. 2243 */ 2244 spin_lock_irqsave(&data->rxlock, flags); 2245 dev_kfree_skb_irq(data->sco_skb); 2246 data->sco_skb = NULL; 2247 spin_unlock_irqrestore(&data->rxlock, flags); 2248 2249 err = __set_isoc_interface(hdev, new_alts); 2250 if (err < 0) 2251 return err; 2252 } 2253 2254 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2255 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2256 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2257 else 2258 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2259 } 2260 2261 return 0; 2262 } 2263 2264 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2265 int alt) 2266 { 2267 struct usb_interface *intf = data->isoc; 2268 int i; 2269 2270 BT_DBG("Looking for Alt no :%d", alt); 2271 2272 if (!intf) 2273 return NULL; 2274 2275 for (i = 0; i < intf->num_altsetting; i++) { 2276 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2277 return &intf->altsetting[i]; 2278 } 2279 2280 return NULL; 2281 } 2282 2283 static void btusb_work(struct work_struct *work) 2284 { 2285 struct btusb_data *data = container_of(work, struct btusb_data, work); 2286 struct hci_dev *hdev = data->hdev; 2287 int new_alts = 0; 2288 int err; 2289 2290 if (data->sco_num > 0) { 2291 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2292 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2293 if (err < 0) { 2294 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2295 usb_kill_anchored_urbs(&data->isoc_anchor); 2296 return; 2297 } 2298 2299 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2300 } 2301 2302 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2303 if (hdev->voice_setting & 0x0020) { 2304 static const int alts[3] = { 2, 4, 5 }; 2305 2306 new_alts = alts[data->sco_num - 1]; 2307 } else { 2308 new_alts = data->sco_num; 2309 } 2310 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2311 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2312 * many adapters do not support it. Alt 1 appears to 2313 * work for all adapters that do not have alt 6, and 2314 * which work with WBS at all. Some devices prefer 2315 * alt 3 (HCI payload >= 60 Bytes let air packet 2316 * data satisfy 60 bytes), requiring 2317 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2318 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2319 */ 2320 if (btusb_find_altsetting(data, 6)) 2321 new_alts = 6; 2322 else if (btusb_find_altsetting(data, 3) && 2323 hdev->sco_mtu >= 72 && 2324 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2325 new_alts = 3; 2326 else 2327 new_alts = 1; 2328 } 2329 2330 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2331 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2332 } else { 2333 usb_kill_anchored_urbs(&data->isoc_anchor); 2334 2335 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2336 __set_isoc_interface(hdev, 0); 2337 2338 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2339 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2340 } 2341 } 2342 2343 static void btusb_waker(struct work_struct *work) 2344 { 2345 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2346 int err; 2347 2348 err = usb_autopm_get_interface(data->intf); 2349 if (err < 0) 2350 return; 2351 2352 usb_autopm_put_interface(data->intf); 2353 } 2354 2355 static void btusb_rx_work(struct work_struct *work) 2356 { 2357 struct btusb_data *data = container_of(work, struct btusb_data, 2358 rx_work.work); 2359 struct sk_buff *skb; 2360 2361 /* Dequeue ACL data received during the interval */ 2362 while ((skb = skb_dequeue(&data->acl_q))) 2363 data->recv_acl(data->hdev, skb); 2364 } 2365 2366 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2367 { 2368 struct sk_buff *skb; 2369 u8 val = 0x00; 2370 2371 BT_DBG("%s", hdev->name); 2372 2373 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2374 if (IS_ERR(skb)) 2375 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2376 else 2377 kfree_skb(skb); 2378 2379 return 0; 2380 } 2381 2382 static int btusb_setup_csr(struct hci_dev *hdev) 2383 { 2384 struct btusb_data *data = hci_get_drvdata(hdev); 2385 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2386 struct hci_rp_read_local_version *rp; 2387 struct sk_buff *skb; 2388 bool is_fake = false; 2389 int ret; 2390 2391 BT_DBG("%s", hdev->name); 2392 2393 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2394 HCI_INIT_TIMEOUT); 2395 if (IS_ERR(skb)) { 2396 int err = PTR_ERR(skb); 2397 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2398 return err; 2399 } 2400 2401 rp = skb_pull_data(skb, sizeof(*rp)); 2402 if (!rp) { 2403 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2404 kfree_skb(skb); 2405 return -EIO; 2406 } 2407 2408 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2409 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2410 2411 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2412 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2413 le16_to_cpu(rp->manufacturer)); 2414 2415 /* Detect a wide host of Chinese controllers that aren't CSR. 2416 * 2417 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2418 * 2419 * The main thing they have in common is that these are really popular low-cost 2420 * options that support newer Bluetooth versions but rely on heavy VID/PID 2421 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2422 * 2423 * We detect actual CSR devices by checking that the HCI manufacturer code 2424 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2425 * HCI rev values always match. As they both store the firmware number. 2426 */ 2427 if (le16_to_cpu(rp->manufacturer) != 10 || 2428 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2429 is_fake = true; 2430 2431 /* Known legit CSR firmware build numbers and their supported BT versions: 2432 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2433 * - 1.2 (0x2) -> 0x04d9, 0x0529 2434 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2435 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2436 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2437 * 2438 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2439 * support BT 1.1 only; so it's a dead giveaway when some 2440 * third-party BT 4.0 dongle reuses it. 2441 */ 2442 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2443 rp->hci_ver > BLUETOOTH_VER_1_1) 2444 is_fake = true; 2445 2446 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2447 rp->hci_ver > BLUETOOTH_VER_1_2) 2448 is_fake = true; 2449 2450 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2451 rp->hci_ver > BLUETOOTH_VER_2_0) 2452 is_fake = true; 2453 2454 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2455 rp->hci_ver > BLUETOOTH_VER_2_1) 2456 is_fake = true; 2457 2458 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2459 rp->hci_ver > BLUETOOTH_VER_4_0) 2460 is_fake = true; 2461 2462 /* Other clones which beat all the above checks */ 2463 else if (bcdDevice == 0x0134 && 2464 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2465 rp->hci_ver == BLUETOOTH_VER_2_0) 2466 is_fake = true; 2467 2468 if (is_fake) { 2469 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2470 2471 /* Generally these clones have big discrepancies between 2472 * advertised features and what's actually supported. 2473 * Probably will need to be expanded in the future; 2474 * without these the controller will lock up. 2475 */ 2476 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2477 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2478 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2479 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2480 2481 /* Clear the reset quirk since this is not an actual 2482 * early Bluetooth 1.1 device from CSR. 2483 */ 2484 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2485 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2486 2487 /* 2488 * Special workaround for these BT 4.0 chip clones, and potentially more: 2489 * 2490 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2491 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2492 * 2493 * These controllers are really messed-up. 2494 * 2495 * 1. Their bulk RX endpoint will never report any data unless 2496 * the device was suspended at least once (yes, really). 2497 * 2. They will not wakeup when autosuspended and receiving data 2498 * on their bulk RX endpoint from e.g. a keyboard or mouse 2499 * (IOW remote-wakeup support is broken for the bulk endpoint). 2500 * 2501 * To fix 1. enable runtime-suspend, force-suspend the 2502 * HCI and then wake-it up by disabling runtime-suspend. 2503 * 2504 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2505 * will still be autosuspended when it is not open. 2506 * 2507 * -- 2508 * 2509 * Because these are widespread problems we prefer generic solutions; so 2510 * apply this initialization quirk to every controller that gets here, 2511 * it should be harmless. The alternative is to not work at all. 2512 */ 2513 pm_runtime_allow(&data->udev->dev); 2514 2515 ret = pm_runtime_suspend(&data->udev->dev); 2516 if (ret >= 0) 2517 msleep(200); 2518 else 2519 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2520 2521 pm_runtime_forbid(&data->udev->dev); 2522 2523 device_set_wakeup_capable(&data->udev->dev, false); 2524 2525 /* Re-enable autosuspend if this was requested */ 2526 if (enable_autosuspend) 2527 usb_enable_autosuspend(data->udev); 2528 } 2529 2530 kfree_skb(skb); 2531 2532 return 0; 2533 } 2534 2535 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2536 { 2537 struct sk_buff *skb; 2538 struct hci_event_hdr *hdr; 2539 struct hci_ev_cmd_complete *evt; 2540 2541 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2542 if (!skb) 2543 return -ENOMEM; 2544 2545 hdr = skb_put(skb, sizeof(*hdr)); 2546 hdr->evt = HCI_EV_CMD_COMPLETE; 2547 hdr->plen = sizeof(*evt) + 1; 2548 2549 evt = skb_put(skb, sizeof(*evt)); 2550 evt->ncmd = 0x01; 2551 evt->opcode = cpu_to_le16(opcode); 2552 2553 skb_put_u8(skb, 0x00); 2554 2555 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2556 2557 return hci_recv_frame(hdev, skb); 2558 } 2559 2560 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2561 int count) 2562 { 2563 struct hci_dev *hdev = data->hdev; 2564 2565 /* When the device is in bootloader mode, then it can send 2566 * events via the bulk endpoint. These events are treated the 2567 * same way as the ones received from the interrupt endpoint. 2568 */ 2569 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2570 return btusb_recv_intr(data, buffer, count); 2571 2572 return btusb_recv_bulk(data, buffer, count); 2573 } 2574 2575 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2576 { 2577 struct urb *urb; 2578 2579 BT_DBG("%s", hdev->name); 2580 2581 switch (hci_skb_pkt_type(skb)) { 2582 case HCI_COMMAND_PKT: 2583 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2584 struct hci_command_hdr *cmd = (void *)skb->data; 2585 __u16 opcode = le16_to_cpu(cmd->opcode); 2586 2587 /* When in bootloader mode and the command 0xfc09 2588 * is received, it needs to be send down the 2589 * bulk endpoint. So allocate a bulk URB instead. 2590 */ 2591 if (opcode == 0xfc09) 2592 urb = alloc_bulk_urb(hdev, skb); 2593 else 2594 urb = alloc_ctrl_urb(hdev, skb); 2595 2596 /* When the 0xfc01 command is issued to boot into 2597 * the operational firmware, it will actually not 2598 * send a command complete event. To keep the flow 2599 * control working inject that event here. 2600 */ 2601 if (opcode == 0xfc01) 2602 inject_cmd_complete(hdev, opcode); 2603 } else { 2604 urb = alloc_ctrl_urb(hdev, skb); 2605 } 2606 if (IS_ERR(urb)) 2607 return PTR_ERR(urb); 2608 2609 hdev->stat.cmd_tx++; 2610 return submit_or_queue_tx_urb(hdev, urb); 2611 2612 case HCI_ACLDATA_PKT: 2613 urb = alloc_bulk_urb(hdev, skb); 2614 if (IS_ERR(urb)) 2615 return PTR_ERR(urb); 2616 2617 hdev->stat.acl_tx++; 2618 return submit_or_queue_tx_urb(hdev, urb); 2619 2620 case HCI_SCODATA_PKT: 2621 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2622 hci_conn_num(hdev, SCO_LINK) < 1) 2623 return -ENODEV; 2624 2625 urb = alloc_isoc_urb(hdev, skb); 2626 if (IS_ERR(urb)) 2627 return PTR_ERR(urb); 2628 2629 hdev->stat.sco_tx++; 2630 return submit_tx_urb(hdev, urb); 2631 2632 case HCI_ISODATA_PKT: 2633 urb = alloc_bulk_urb(hdev, skb); 2634 if (IS_ERR(urb)) 2635 return PTR_ERR(urb); 2636 2637 return submit_or_queue_tx_urb(hdev, urb); 2638 } 2639 2640 return -EILSEQ; 2641 } 2642 2643 static int btusb_setup_realtek(struct hci_dev *hdev) 2644 { 2645 struct btusb_data *data = hci_get_drvdata(hdev); 2646 int ret; 2647 2648 ret = btrtl_setup_realtek(hdev); 2649 2650 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2651 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2652 2653 return ret; 2654 } 2655 2656 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2657 { 2658 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2659 struct rtk_dev_coredump_hdr hdr = { 2660 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2661 }; 2662 2663 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2664 skb->len); 2665 2666 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2667 kfree_skb(skb); 2668 2669 return 0; 2670 } 2671 2672 return hci_recv_frame(hdev, skb); 2673 } 2674 2675 static void btusb_mtk_claim_iso_intf(struct btusb_data *data) 2676 { 2677 struct btmtk_data *btmtk_data = hci_get_priv(data->hdev); 2678 int err; 2679 2680 /* 2681 * The function usb_driver_claim_interface() is documented to need 2682 * locks held if it's not called from a probe routine. The code here 2683 * is called from the hci_power_on workqueue, so grab the lock. 2684 */ 2685 device_lock(&btmtk_data->isopkt_intf->dev); 2686 err = usb_driver_claim_interface(&btusb_driver, 2687 btmtk_data->isopkt_intf, data); 2688 device_unlock(&btmtk_data->isopkt_intf->dev); 2689 if (err < 0) { 2690 btmtk_data->isopkt_intf = NULL; 2691 bt_dev_err(data->hdev, "Failed to claim iso interface"); 2692 return; 2693 } 2694 2695 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2696 init_usb_anchor(&btmtk_data->isopkt_anchor); 2697 } 2698 2699 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev) 2700 { 2701 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2702 2703 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2704 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); 2705 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); 2706 2707 dev_kfree_skb_irq(btmtk_data->isopkt_skb); 2708 btmtk_data->isopkt_skb = NULL; 2709 usb_set_intfdata(btmtk_data->isopkt_intf, NULL); 2710 usb_driver_release_interface(&btusb_driver, 2711 btmtk_data->isopkt_intf); 2712 } 2713 2714 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2715 } 2716 2717 static int btusb_mtk_disconnect(struct hci_dev *hdev) 2718 { 2719 /* This function describes the specific additional steps taken by MediaTek 2720 * when Bluetooth usb driver's resume function is called. 2721 */ 2722 btusb_mtk_release_iso_intf(hdev); 2723 2724 return 0; 2725 } 2726 2727 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2728 { 2729 struct btusb_data *data = hci_get_drvdata(hdev); 2730 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2731 int err; 2732 2733 /* It's MediaTek specific bluetooth reset mechanism via USB */ 2734 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) { 2735 bt_dev_err(hdev, "last reset failed? Not resetting again"); 2736 return -EBUSY; 2737 } 2738 2739 err = usb_autopm_get_interface(data->intf); 2740 if (err < 0) 2741 return err; 2742 2743 /* Release MediaTek ISO data interface */ 2744 btusb_mtk_release_iso_intf(hdev); 2745 2746 btusb_stop_traffic(data); 2747 usb_kill_anchored_urbs(&data->tx_anchor); 2748 2749 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); 2750 2751 usb_queue_reset_device(data->intf); 2752 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 2753 2754 return err; 2755 } 2756 2757 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb) 2758 { 2759 struct urb *urb; 2760 2761 BT_DBG("%s", hdev->name); 2762 2763 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) { 2764 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); 2765 if (IS_ERR(urb)) 2766 return PTR_ERR(urb); 2767 2768 return submit_or_queue_tx_urb(hdev, urb); 2769 } else { 2770 return btusb_send_frame(hdev, skb); 2771 } 2772 } 2773 2774 static int btusb_mtk_setup(struct hci_dev *hdev) 2775 { 2776 struct btusb_data *data = hci_get_drvdata(hdev); 2777 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2778 2779 /* MediaTek WMT vendor cmd requiring below USB resources to 2780 * complete the handshake. 2781 */ 2782 btmtk_data->drv_name = btusb_driver.name; 2783 btmtk_data->intf = data->intf; 2784 btmtk_data->udev = data->udev; 2785 btmtk_data->ctrl_anchor = &data->ctrl_anchor; 2786 btmtk_data->reset_sync = btusb_mtk_reset; 2787 2788 /* Claim ISO data interface and endpoint */ 2789 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2790 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); 2791 btusb_mtk_claim_iso_intf(data); 2792 } 2793 2794 return btmtk_usb_setup(hdev); 2795 } 2796 2797 static int btusb_mtk_shutdown(struct hci_dev *hdev) 2798 { 2799 int ret; 2800 2801 ret = btmtk_usb_shutdown(hdev); 2802 2803 /* Release MediaTek iso interface after shutdown */ 2804 btusb_mtk_release_iso_intf(hdev); 2805 2806 return ret; 2807 } 2808 2809 #ifdef CONFIG_PM 2810 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2811 static int marvell_config_oob_wake(struct hci_dev *hdev) 2812 { 2813 struct sk_buff *skb; 2814 struct btusb_data *data = hci_get_drvdata(hdev); 2815 struct device *dev = &data->udev->dev; 2816 u16 pin, gap, opcode; 2817 int ret; 2818 u8 cmd[5]; 2819 2820 /* Move on if no wakeup pin specified */ 2821 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2822 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2823 return 0; 2824 2825 /* Vendor specific command to configure a GPIO as wake-up pin */ 2826 opcode = hci_opcode_pack(0x3F, 0x59); 2827 cmd[0] = opcode & 0xFF; 2828 cmd[1] = opcode >> 8; 2829 cmd[2] = 2; /* length of parameters that follow */ 2830 cmd[3] = pin; 2831 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2832 2833 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2834 if (!skb) { 2835 bt_dev_err(hdev, "%s: No memory", __func__); 2836 return -ENOMEM; 2837 } 2838 2839 skb_put_data(skb, cmd, sizeof(cmd)); 2840 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2841 2842 ret = btusb_send_frame(hdev, skb); 2843 if (ret) { 2844 bt_dev_err(hdev, "%s: configuration failed", __func__); 2845 kfree_skb(skb); 2846 return ret; 2847 } 2848 2849 return 0; 2850 } 2851 #endif 2852 2853 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2854 const bdaddr_t *bdaddr) 2855 { 2856 struct sk_buff *skb; 2857 u8 buf[8]; 2858 long ret; 2859 2860 buf[0] = 0xfe; 2861 buf[1] = sizeof(bdaddr_t); 2862 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2863 2864 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2865 if (IS_ERR(skb)) { 2866 ret = PTR_ERR(skb); 2867 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2868 ret); 2869 return ret; 2870 } 2871 kfree_skb(skb); 2872 2873 return 0; 2874 } 2875 2876 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2877 const bdaddr_t *bdaddr) 2878 { 2879 struct sk_buff *skb; 2880 u8 buf[10]; 2881 long ret; 2882 2883 buf[0] = 0x01; 2884 buf[1] = 0x01; 2885 buf[2] = 0x00; 2886 buf[3] = sizeof(bdaddr_t); 2887 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2888 2889 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2890 if (IS_ERR(skb)) { 2891 ret = PTR_ERR(skb); 2892 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2893 return ret; 2894 } 2895 kfree_skb(skb); 2896 2897 return 0; 2898 } 2899 2900 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 2901 const bdaddr_t *bdaddr) 2902 { 2903 struct sk_buff *skb; 2904 u8 buf[6]; 2905 long ret; 2906 2907 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 2908 2909 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 2910 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 2911 if (IS_ERR(skb)) { 2912 ret = PTR_ERR(skb); 2913 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2914 return ret; 2915 } 2916 kfree_skb(skb); 2917 2918 return 0; 2919 } 2920 2921 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 2922 #define QCA_MEMDUMP_SIZE_MAX 0x100000 2923 #define QCA_MEMDUMP_VSE_CLASS 0x01 2924 #define QCA_MEMDUMP_MSG_TYPE 0x08 2925 #define QCA_MEMDUMP_PKT_SIZE 248 2926 #define QCA_LAST_SEQUENCE_NUM 0xffff 2927 2928 struct qca_dump_hdr { 2929 u8 vse_class; 2930 u8 msg_type; 2931 __le16 seqno; 2932 u8 reserved; 2933 union { 2934 u8 data[0]; 2935 struct { 2936 __le32 ram_dump_size; 2937 u8 data0[0]; 2938 } __packed; 2939 }; 2940 } __packed; 2941 2942 2943 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 2944 { 2945 char buf[128]; 2946 struct btusb_data *btdata = hci_get_drvdata(hdev); 2947 2948 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 2949 btdata->qca_dump.controller_id); 2950 skb_put_data(skb, buf, strlen(buf)); 2951 2952 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 2953 btdata->qca_dump.fw_version); 2954 skb_put_data(skb, buf, strlen(buf)); 2955 2956 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 2957 btusb_driver.name); 2958 skb_put_data(skb, buf, strlen(buf)); 2959 2960 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 2961 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 2962 skb_put_data(skb, buf, strlen(buf)); 2963 2964 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 2965 hdev->lmp_subver); 2966 skb_put_data(skb, buf, strlen(buf)); 2967 } 2968 2969 static void btusb_coredump_qca(struct hci_dev *hdev) 2970 { 2971 int err; 2972 static const u8 param[] = { 0x26 }; 2973 2974 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 2975 if (err < 0) 2976 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 2977 } 2978 2979 /* 2980 * ==0: not a dump pkt. 2981 * < 0: fails to handle a dump pkt 2982 * > 0: otherwise. 2983 */ 2984 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 2985 { 2986 int ret = 1; 2987 u8 pkt_type; 2988 u8 *sk_ptr; 2989 unsigned int sk_len; 2990 u16 seqno; 2991 u32 dump_size; 2992 2993 struct hci_event_hdr *event_hdr; 2994 struct hci_acl_hdr *acl_hdr; 2995 struct qca_dump_hdr *dump_hdr; 2996 struct btusb_data *btdata = hci_get_drvdata(hdev); 2997 struct usb_device *udev = btdata->udev; 2998 2999 pkt_type = hci_skb_pkt_type(skb); 3000 sk_ptr = skb->data; 3001 sk_len = skb->len; 3002 3003 if (pkt_type == HCI_ACLDATA_PKT) { 3004 acl_hdr = hci_acl_hdr(skb); 3005 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3006 return 0; 3007 sk_ptr += HCI_ACL_HDR_SIZE; 3008 sk_len -= HCI_ACL_HDR_SIZE; 3009 event_hdr = (struct hci_event_hdr *)sk_ptr; 3010 } else { 3011 event_hdr = hci_event_hdr(skb); 3012 } 3013 3014 if ((event_hdr->evt != HCI_VENDOR_PKT) 3015 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3016 return 0; 3017 3018 sk_ptr += HCI_EVENT_HDR_SIZE; 3019 sk_len -= HCI_EVENT_HDR_SIZE; 3020 3021 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3022 if ((sk_len < offsetof(struct qca_dump_hdr, data)) 3023 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) 3024 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3025 return 0; 3026 3027 /*it is dump pkt now*/ 3028 seqno = le16_to_cpu(dump_hdr->seqno); 3029 if (seqno == 0) { 3030 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3031 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3032 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3033 ret = -EILSEQ; 3034 bt_dev_err(hdev, "Invalid memdump size(%u)", 3035 dump_size); 3036 goto out; 3037 } 3038 3039 ret = hci_devcd_init(hdev, dump_size); 3040 if (ret < 0) { 3041 bt_dev_err(hdev, "memdump init error(%d)", ret); 3042 goto out; 3043 } 3044 3045 btdata->qca_dump.ram_dump_size = dump_size; 3046 btdata->qca_dump.ram_dump_seqno = 0; 3047 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3048 sk_len -= offsetof(struct qca_dump_hdr, data0); 3049 3050 usb_disable_autosuspend(udev); 3051 bt_dev_info(hdev, "%s memdump size(%u)\n", 3052 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3053 dump_size); 3054 } else { 3055 sk_ptr += offsetof(struct qca_dump_hdr, data); 3056 sk_len -= offsetof(struct qca_dump_hdr, data); 3057 } 3058 3059 if (!btdata->qca_dump.ram_dump_size) { 3060 ret = -EINVAL; 3061 bt_dev_err(hdev, "memdump is not active"); 3062 goto out; 3063 } 3064 3065 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3066 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3067 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3068 bt_dev_err(hdev, 3069 "expected memdump seqno(%u) is not received(%u)\n", 3070 btdata->qca_dump.ram_dump_seqno, seqno); 3071 btdata->qca_dump.ram_dump_seqno = seqno; 3072 kfree_skb(skb); 3073 return ret; 3074 } 3075 3076 skb_pull(skb, skb->len - sk_len); 3077 hci_devcd_append(hdev, skb); 3078 btdata->qca_dump.ram_dump_seqno++; 3079 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3080 bt_dev_info(hdev, 3081 "memdump done: pkts(%u), total(%u)\n", 3082 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3083 3084 hci_devcd_complete(hdev); 3085 goto out; 3086 } 3087 return ret; 3088 3089 out: 3090 if (btdata->qca_dump.ram_dump_size) 3091 usb_enable_autosuspend(udev); 3092 btdata->qca_dump.ram_dump_size = 0; 3093 btdata->qca_dump.ram_dump_seqno = 0; 3094 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3095 3096 if (ret < 0) 3097 kfree_skb(skb); 3098 return ret; 3099 } 3100 3101 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3102 { 3103 if (handle_dump_pkt_qca(hdev, skb)) 3104 return 0; 3105 return hci_recv_frame(hdev, skb); 3106 } 3107 3108 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3109 { 3110 if (handle_dump_pkt_qca(hdev, skb)) 3111 return 0; 3112 return hci_recv_frame(hdev, skb); 3113 } 3114 3115 3116 #define QCA_DFU_PACKET_LEN 4096 3117 3118 #define QCA_GET_TARGET_VERSION 0x09 3119 #define QCA_CHECK_STATUS 0x05 3120 #define QCA_DFU_DOWNLOAD 0x01 3121 3122 #define QCA_SYSCFG_UPDATED 0x40 3123 #define QCA_PATCH_UPDATED 0x80 3124 #define QCA_DFU_TIMEOUT 3000 3125 #define QCA_FLAG_MULTI_NVM 0x80 3126 #define QCA_BT_RESET_WAIT_MS 100 3127 3128 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3129 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3130 3131 struct qca_version { 3132 __le32 rom_version; 3133 __le32 patch_version; 3134 __le32 ram_version; 3135 __u8 chip_id; 3136 __u8 platform_id; 3137 __le16 flag; 3138 __u8 reserved[4]; 3139 } __packed; 3140 3141 struct qca_rampatch_version { 3142 __le16 rom_version_high; 3143 __le16 rom_version_low; 3144 __le16 patch_version; 3145 } __packed; 3146 3147 struct qca_device_info { 3148 u32 rom_version; 3149 u8 rampatch_hdr; /* length of header in rampatch */ 3150 u8 nvm_hdr; /* length of header in NVM */ 3151 u8 ver_offset; /* offset of version structure in rampatch */ 3152 }; 3153 3154 static const struct qca_device_info qca_devices_table[] = { 3155 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3156 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3157 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3158 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3159 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3160 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3161 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3162 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3163 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3164 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3165 }; 3166 3167 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3168 void *data, u16 size) 3169 { 3170 int pipe, err; 3171 u8 *buf; 3172 3173 buf = kmalloc(size, GFP_KERNEL); 3174 if (!buf) 3175 return -ENOMEM; 3176 3177 /* Found some of USB hosts have IOT issues with ours so that we should 3178 * not wait until HCI layer is ready. 3179 */ 3180 pipe = usb_rcvctrlpipe(udev, 0); 3181 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3182 0, 0, buf, size, USB_CTRL_GET_TIMEOUT); 3183 if (err < 0) { 3184 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3185 goto done; 3186 } 3187 3188 memcpy(data, buf, size); 3189 3190 done: 3191 kfree(buf); 3192 3193 return err; 3194 } 3195 3196 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3197 const struct firmware *firmware, 3198 size_t hdr_size) 3199 { 3200 struct btusb_data *btdata = hci_get_drvdata(hdev); 3201 struct usb_device *udev = btdata->udev; 3202 size_t count, size, sent = 0; 3203 int pipe, len, err; 3204 u8 *buf; 3205 3206 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3207 if (!buf) 3208 return -ENOMEM; 3209 3210 count = firmware->size; 3211 3212 size = min_t(size_t, count, hdr_size); 3213 memcpy(buf, firmware->data, size); 3214 3215 /* USB patches should go down to controller through USB path 3216 * because binary format fits to go down through USB channel. 3217 * USB control path is for patching headers and USB bulk is for 3218 * patch body. 3219 */ 3220 pipe = usb_sndctrlpipe(udev, 0); 3221 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3222 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3223 if (err < 0) { 3224 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3225 goto done; 3226 } 3227 3228 sent += size; 3229 count -= size; 3230 3231 /* ep2 need time to switch from function acl to function dfu, 3232 * so we add 20ms delay here. 3233 */ 3234 msleep(20); 3235 3236 while (count) { 3237 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3238 3239 memcpy(buf, firmware->data + sent, size); 3240 3241 pipe = usb_sndbulkpipe(udev, 0x02); 3242 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3243 QCA_DFU_TIMEOUT); 3244 if (err < 0) { 3245 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3246 sent, firmware->size, err); 3247 break; 3248 } 3249 3250 if (size != len) { 3251 bt_dev_err(hdev, "Failed to get bulk buffer"); 3252 err = -EILSEQ; 3253 break; 3254 } 3255 3256 sent += size; 3257 count -= size; 3258 } 3259 3260 done: 3261 kfree(buf); 3262 return err; 3263 } 3264 3265 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3266 struct qca_version *ver, 3267 const struct qca_device_info *info) 3268 { 3269 struct qca_rampatch_version *rver; 3270 const struct firmware *fw; 3271 u32 ver_rom, ver_patch, rver_rom; 3272 u16 rver_rom_low, rver_rom_high, rver_patch; 3273 char fwname[64]; 3274 int err; 3275 3276 ver_rom = le32_to_cpu(ver->rom_version); 3277 ver_patch = le32_to_cpu(ver->patch_version); 3278 3279 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3280 3281 err = request_firmware(&fw, fwname, &hdev->dev); 3282 if (err) { 3283 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3284 fwname, err); 3285 return err; 3286 } 3287 3288 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3289 3290 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3291 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3292 rver_patch = le16_to_cpu(rver->patch_version); 3293 3294 if (ver_rom & ~0xffffU) { 3295 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3296 rver_rom = rver_rom_high << 16 | rver_rom_low; 3297 } else { 3298 rver_rom = rver_rom_low; 3299 } 3300 3301 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3302 "firmware rome 0x%x build 0x%x", 3303 rver_rom, rver_patch, ver_rom, ver_patch); 3304 3305 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3306 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3307 err = -EINVAL; 3308 goto done; 3309 } 3310 3311 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3312 3313 done: 3314 release_firmware(fw); 3315 3316 return err; 3317 } 3318 3319 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3320 const struct qca_version *ver) 3321 { 3322 u32 rom_version = le32_to_cpu(ver->rom_version); 3323 u16 flag = le16_to_cpu(ver->flag); 3324 3325 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3326 /* The board_id should be split into two bytes 3327 * The 1st byte is chip ID, and the 2nd byte is platform ID 3328 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3329 * we have several platforms, and platform IDs are continuously added 3330 * Platform ID: 3331 * 0x00 is for Mobile 3332 * 0x01 is for X86 3333 * 0x02 is for Automotive 3334 * 0x03 is for Consumer electronic 3335 */ 3336 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3337 const char *variant; 3338 3339 switch (le32_to_cpu(ver->ram_version)) { 3340 case WCN6855_2_0_RAM_VERSION_GF: 3341 case WCN6855_2_1_RAM_VERSION_GF: 3342 variant = "_gf"; 3343 break; 3344 default: 3345 variant = ""; 3346 break; 3347 } 3348 3349 if (board_id == 0) { 3350 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3351 rom_version, variant); 3352 } else { 3353 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3354 rom_version, variant, board_id); 3355 } 3356 } else { 3357 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3358 rom_version); 3359 } 3360 3361 } 3362 3363 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3364 struct qca_version *ver, 3365 const struct qca_device_info *info) 3366 { 3367 const struct firmware *fw; 3368 char fwname[64]; 3369 int err; 3370 3371 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3372 3373 err = request_firmware(&fw, fwname, &hdev->dev); 3374 if (err) { 3375 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3376 fwname, err); 3377 return err; 3378 } 3379 3380 bt_dev_info(hdev, "using NVM file: %s", fwname); 3381 3382 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3383 3384 release_firmware(fw); 3385 3386 return err; 3387 } 3388 3389 /* identify the ROM version and check whether patches are needed */ 3390 static bool btusb_qca_need_patch(struct usb_device *udev) 3391 { 3392 struct qca_version ver; 3393 3394 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3395 sizeof(ver)) < 0) 3396 return false; 3397 /* only low ROM versions need patches */ 3398 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3399 } 3400 3401 static int btusb_setup_qca(struct hci_dev *hdev) 3402 { 3403 struct btusb_data *btdata = hci_get_drvdata(hdev); 3404 struct usb_device *udev = btdata->udev; 3405 const struct qca_device_info *info = NULL; 3406 struct qca_version ver; 3407 u32 ver_rom; 3408 u8 status; 3409 int i, err; 3410 3411 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3412 sizeof(ver)); 3413 if (err < 0) 3414 return err; 3415 3416 ver_rom = le32_to_cpu(ver.rom_version); 3417 3418 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3419 if (ver_rom == qca_devices_table[i].rom_version) 3420 info = &qca_devices_table[i]; 3421 } 3422 if (!info) { 3423 /* If the rom_version is not matched in the qca_devices_table 3424 * and the high ROM version is not zero, we assume this chip no 3425 * need to load the rampatch and nvm. 3426 */ 3427 if (ver_rom & ~0xffffU) 3428 return 0; 3429 3430 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3431 return -ENODEV; 3432 } 3433 3434 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3435 sizeof(status)); 3436 if (err < 0) 3437 return err; 3438 3439 if (!(status & QCA_PATCH_UPDATED)) { 3440 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3441 if (err < 0) 3442 return err; 3443 } 3444 3445 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3446 sizeof(ver)); 3447 if (err < 0) 3448 return err; 3449 3450 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3451 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3452 3453 if (!(status & QCA_SYSCFG_UPDATED)) { 3454 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3455 if (err < 0) 3456 return err; 3457 3458 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3459 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3460 * cause potential enable failure. 3461 */ 3462 if (info->rom_version >= 0x00130201) 3463 msleep(QCA_BT_RESET_WAIT_MS); 3464 } 3465 3466 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3467 * work with the likes of HSP/HFP mSBC. 3468 */ 3469 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3470 3471 return 0; 3472 } 3473 3474 static inline int __set_diag_interface(struct hci_dev *hdev) 3475 { 3476 struct btusb_data *data = hci_get_drvdata(hdev); 3477 struct usb_interface *intf = data->diag; 3478 int i; 3479 3480 if (!data->diag) 3481 return -ENODEV; 3482 3483 data->diag_tx_ep = NULL; 3484 data->diag_rx_ep = NULL; 3485 3486 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3487 struct usb_endpoint_descriptor *ep_desc; 3488 3489 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3490 3491 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3492 data->diag_tx_ep = ep_desc; 3493 continue; 3494 } 3495 3496 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3497 data->diag_rx_ep = ep_desc; 3498 continue; 3499 } 3500 } 3501 3502 if (!data->diag_tx_ep || !data->diag_rx_ep) { 3503 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3504 return -ENODEV; 3505 } 3506 3507 return 0; 3508 } 3509 3510 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3511 { 3512 struct btusb_data *data = hci_get_drvdata(hdev); 3513 struct sk_buff *skb; 3514 struct urb *urb; 3515 unsigned int pipe; 3516 3517 if (!data->diag_tx_ep) 3518 return ERR_PTR(-ENODEV); 3519 3520 urb = usb_alloc_urb(0, GFP_KERNEL); 3521 if (!urb) 3522 return ERR_PTR(-ENOMEM); 3523 3524 skb = bt_skb_alloc(2, GFP_KERNEL); 3525 if (!skb) { 3526 usb_free_urb(urb); 3527 return ERR_PTR(-ENOMEM); 3528 } 3529 3530 skb_put_u8(skb, 0xf0); 3531 skb_put_u8(skb, enable); 3532 3533 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 3534 3535 usb_fill_bulk_urb(urb, data->udev, pipe, 3536 skb->data, skb->len, btusb_tx_complete, skb); 3537 3538 skb->dev = (void *)hdev; 3539 3540 return urb; 3541 } 3542 3543 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 3544 { 3545 struct btusb_data *data = hci_get_drvdata(hdev); 3546 struct urb *urb; 3547 3548 if (!data->diag) 3549 return -ENODEV; 3550 3551 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3552 return -ENETDOWN; 3553 3554 urb = alloc_diag_urb(hdev, enable); 3555 if (IS_ERR(urb)) 3556 return PTR_ERR(urb); 3557 3558 return submit_or_queue_tx_urb(hdev, urb); 3559 } 3560 3561 #ifdef CONFIG_PM 3562 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 3563 { 3564 struct btusb_data *data = priv; 3565 3566 pm_wakeup_event(&data->udev->dev, 0); 3567 pm_system_wakeup(); 3568 3569 /* Disable only if not already disabled (keep it balanced) */ 3570 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3571 disable_irq_nosync(irq); 3572 disable_irq_wake(irq); 3573 } 3574 return IRQ_HANDLED; 3575 } 3576 3577 static const struct of_device_id btusb_match_table[] = { 3578 { .compatible = "usb1286,204e" }, 3579 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 3580 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 3581 { } 3582 }; 3583 MODULE_DEVICE_TABLE(of, btusb_match_table); 3584 3585 /* Use an oob wakeup pin? */ 3586 static int btusb_config_oob_wake(struct hci_dev *hdev) 3587 { 3588 struct btusb_data *data = hci_get_drvdata(hdev); 3589 struct device *dev = &data->udev->dev; 3590 int irq, ret; 3591 3592 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3593 3594 if (!of_match_device(btusb_match_table, dev)) 3595 return 0; 3596 3597 /* Move on if no IRQ specified */ 3598 irq = of_irq_get_byname(dev->of_node, "wakeup"); 3599 if (irq <= 0) { 3600 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 3601 return 0; 3602 } 3603 3604 irq_set_status_flags(irq, IRQ_NOAUTOEN); 3605 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 3606 0, "OOB Wake-on-BT", data); 3607 if (ret) { 3608 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 3609 return ret; 3610 } 3611 3612 ret = device_init_wakeup(dev, true); 3613 if (ret) { 3614 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 3615 return ret; 3616 } 3617 3618 data->oob_wake_irq = irq; 3619 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 3620 return 0; 3621 } 3622 #endif 3623 3624 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 3625 { 3626 if (dmi_check_system(btusb_needs_reset_resume_table)) 3627 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3628 } 3629 3630 static bool btusb_wakeup(struct hci_dev *hdev) 3631 { 3632 struct btusb_data *data = hci_get_drvdata(hdev); 3633 3634 return device_may_wakeup(&data->udev->dev); 3635 } 3636 3637 static int btusb_shutdown_qca(struct hci_dev *hdev) 3638 { 3639 struct sk_buff *skb; 3640 3641 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 3642 if (IS_ERR(skb)) { 3643 bt_dev_err(hdev, "HCI reset during shutdown failed"); 3644 return PTR_ERR(skb); 3645 } 3646 kfree_skb(skb); 3647 3648 return 0; 3649 } 3650 3651 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 3652 size_t count, loff_t *ppos) 3653 { 3654 struct btusb_data *data = file->private_data; 3655 char buf[3]; 3656 3657 buf[0] = data->poll_sync ? 'Y' : 'N'; 3658 buf[1] = '\n'; 3659 buf[2] = '\0'; 3660 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 3661 } 3662 3663 static ssize_t force_poll_sync_write(struct file *file, 3664 const char __user *user_buf, 3665 size_t count, loff_t *ppos) 3666 { 3667 struct btusb_data *data = file->private_data; 3668 bool enable; 3669 int err; 3670 3671 err = kstrtobool_from_user(user_buf, count, &enable); 3672 if (err) 3673 return err; 3674 3675 /* Only allow changes while the adapter is down */ 3676 if (test_bit(HCI_UP, &data->hdev->flags)) 3677 return -EPERM; 3678 3679 if (data->poll_sync == enable) 3680 return -EALREADY; 3681 3682 data->poll_sync = enable; 3683 3684 return count; 3685 } 3686 3687 static const struct file_operations force_poll_sync_fops = { 3688 .owner = THIS_MODULE, 3689 .open = simple_open, 3690 .read = force_poll_sync_read, 3691 .write = force_poll_sync_write, 3692 .llseek = default_llseek, 3693 }; 3694 3695 static ssize_t isoc_alt_show(struct device *dev, 3696 struct device_attribute *attr, 3697 char *buf) 3698 { 3699 struct btusb_data *data = dev_get_drvdata(dev); 3700 3701 return sysfs_emit(buf, "%d\n", data->isoc_altsetting); 3702 } 3703 3704 static ssize_t isoc_alt_store(struct device *dev, 3705 struct device_attribute *attr, 3706 const char *buf, size_t count) 3707 { 3708 struct btusb_data *data = dev_get_drvdata(dev); 3709 int alt; 3710 int ret; 3711 3712 if (kstrtoint(buf, 10, &alt)) 3713 return -EINVAL; 3714 3715 ret = btusb_switch_alt_setting(data->hdev, alt); 3716 return ret < 0 ? ret : count; 3717 } 3718 3719 static DEVICE_ATTR_RW(isoc_alt); 3720 3721 static int btusb_probe(struct usb_interface *intf, 3722 const struct usb_device_id *id) 3723 { 3724 struct usb_endpoint_descriptor *ep_desc; 3725 struct gpio_desc *reset_gpio; 3726 struct btusb_data *data; 3727 struct hci_dev *hdev; 3728 unsigned ifnum_base; 3729 int i, err, priv_size; 3730 3731 BT_DBG("intf %p id %p", intf, id); 3732 3733 if ((id->driver_info & BTUSB_IFNUM_2) && 3734 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 3735 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 3736 return -ENODEV; 3737 3738 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 3739 3740 if (!id->driver_info) { 3741 const struct usb_device_id *match; 3742 3743 match = usb_match_id(intf, quirks_table); 3744 if (match) 3745 id = match; 3746 } 3747 3748 if (id->driver_info == BTUSB_IGNORE) 3749 return -ENODEV; 3750 3751 if (id->driver_info & BTUSB_ATH3012) { 3752 struct usb_device *udev = interface_to_usbdev(intf); 3753 3754 /* Old firmware would otherwise let ath3k driver load 3755 * patch and sysconfig files 3756 */ 3757 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 3758 !btusb_qca_need_patch(udev)) 3759 return -ENODEV; 3760 } 3761 3762 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 3763 if (!data) 3764 return -ENOMEM; 3765 3766 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3767 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3768 3769 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 3770 data->intr_ep = ep_desc; 3771 continue; 3772 } 3773 3774 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3775 data->bulk_tx_ep = ep_desc; 3776 continue; 3777 } 3778 3779 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3780 data->bulk_rx_ep = ep_desc; 3781 continue; 3782 } 3783 } 3784 3785 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 3786 return -ENODEV; 3787 3788 if (id->driver_info & BTUSB_AMP) { 3789 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 3790 data->cmdreq = 0x2b; 3791 } else { 3792 data->cmdreq_type = USB_TYPE_CLASS; 3793 data->cmdreq = 0x00; 3794 } 3795 3796 data->udev = interface_to_usbdev(intf); 3797 data->intf = intf; 3798 3799 INIT_WORK(&data->work, btusb_work); 3800 INIT_WORK(&data->waker, btusb_waker); 3801 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 3802 3803 skb_queue_head_init(&data->acl_q); 3804 3805 init_usb_anchor(&data->deferred); 3806 init_usb_anchor(&data->tx_anchor); 3807 spin_lock_init(&data->txlock); 3808 3809 init_usb_anchor(&data->intr_anchor); 3810 init_usb_anchor(&data->bulk_anchor); 3811 init_usb_anchor(&data->isoc_anchor); 3812 init_usb_anchor(&data->diag_anchor); 3813 init_usb_anchor(&data->ctrl_anchor); 3814 spin_lock_init(&data->rxlock); 3815 3816 priv_size = 0; 3817 3818 data->recv_event = hci_recv_frame; 3819 data->recv_bulk = btusb_recv_bulk; 3820 3821 if (id->driver_info & BTUSB_INTEL_COMBINED) { 3822 /* Allocate extra space for Intel device */ 3823 priv_size += sizeof(struct btintel_data); 3824 3825 /* Override the rx handlers */ 3826 data->recv_event = btintel_recv_event; 3827 data->recv_bulk = btusb_recv_bulk_intel; 3828 } else if (id->driver_info & BTUSB_REALTEK) { 3829 /* Allocate extra space for Realtek device */ 3830 priv_size += sizeof(struct btrealtek_data); 3831 3832 data->recv_event = btusb_recv_event_realtek; 3833 } else if (id->driver_info & BTUSB_MEDIATEK) { 3834 /* Allocate extra space for Mediatek device */ 3835 priv_size += sizeof(struct btmtk_data); 3836 } 3837 3838 data->recv_acl = hci_recv_frame; 3839 3840 hdev = hci_alloc_dev_priv(priv_size); 3841 if (!hdev) 3842 return -ENOMEM; 3843 3844 hdev->bus = HCI_USB; 3845 hci_set_drvdata(hdev, data); 3846 3847 data->hdev = hdev; 3848 3849 SET_HCIDEV_DEV(hdev, &intf->dev); 3850 3851 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 3852 GPIOD_OUT_LOW); 3853 if (IS_ERR(reset_gpio)) { 3854 err = PTR_ERR(reset_gpio); 3855 goto out_free_dev; 3856 } else if (reset_gpio) { 3857 data->reset_gpio = reset_gpio; 3858 } 3859 3860 hdev->open = btusb_open; 3861 hdev->close = btusb_close; 3862 hdev->flush = btusb_flush; 3863 hdev->send = btusb_send_frame; 3864 hdev->notify = btusb_notify; 3865 hdev->wakeup = btusb_wakeup; 3866 3867 #ifdef CONFIG_PM 3868 err = btusb_config_oob_wake(hdev); 3869 if (err) 3870 goto out_free_dev; 3871 3872 /* Marvell devices may need a specific chip configuration */ 3873 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3874 err = marvell_config_oob_wake(hdev); 3875 if (err) 3876 goto out_free_dev; 3877 } 3878 #endif 3879 if (id->driver_info & BTUSB_CW6622) 3880 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3881 3882 if (id->driver_info & BTUSB_BCM2045) 3883 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3884 3885 if (id->driver_info & BTUSB_BCM92035) 3886 hdev->setup = btusb_setup_bcm92035; 3887 3888 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 3889 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 3890 hdev->manufacturer = 15; 3891 hdev->setup = btbcm_setup_patchram; 3892 hdev->set_diag = btusb_bcm_set_diag; 3893 hdev->set_bdaddr = btbcm_set_bdaddr; 3894 3895 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3896 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3897 } 3898 3899 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 3900 (id->driver_info & BTUSB_BCM_APPLE)) { 3901 hdev->manufacturer = 15; 3902 hdev->setup = btbcm_setup_apple; 3903 hdev->set_diag = btusb_bcm_set_diag; 3904 3905 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3906 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3907 } 3908 3909 /* Combined Intel Device setup to support multiple setup routine */ 3910 if (id->driver_info & BTUSB_INTEL_COMBINED) { 3911 err = btintel_configure_setup(hdev, btusb_driver.name); 3912 if (err) 3913 goto out_free_dev; 3914 3915 /* Transport specific configuration */ 3916 hdev->send = btusb_send_frame_intel; 3917 hdev->reset = btusb_intel_reset; 3918 3919 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 3920 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 3921 3922 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 3923 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 3924 3925 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 3926 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 3927 } 3928 3929 if (id->driver_info & BTUSB_MARVELL) 3930 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3931 3932 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 3933 (id->driver_info & BTUSB_MEDIATEK)) { 3934 hdev->setup = btusb_mtk_setup; 3935 hdev->shutdown = btusb_mtk_shutdown; 3936 hdev->manufacturer = 70; 3937 hdev->reset = btmtk_reset_sync; 3938 hdev->set_bdaddr = btmtk_set_bdaddr; 3939 hdev->send = btusb_send_frame_mtk; 3940 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3941 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 3942 data->recv_acl = btmtk_usb_recv_acl; 3943 data->suspend = btmtk_usb_suspend; 3944 data->resume = btmtk_usb_resume; 3945 data->disconnect = btusb_mtk_disconnect; 3946 } 3947 3948 if (id->driver_info & BTUSB_SWAVE) { 3949 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3950 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3951 } 3952 3953 if (id->driver_info & BTUSB_INTEL_BOOT) { 3954 hdev->manufacturer = 2; 3955 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3956 } 3957 3958 if (id->driver_info & BTUSB_ATH3012) { 3959 data->setup_on_usb = btusb_setup_qca; 3960 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3961 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3962 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3963 } 3964 3965 if (id->driver_info & BTUSB_QCA_ROME) { 3966 data->setup_on_usb = btusb_setup_qca; 3967 hdev->shutdown = btusb_shutdown_qca; 3968 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3969 hdev->reset = btusb_qca_reset; 3970 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3971 btusb_check_needs_reset_resume(intf); 3972 } 3973 3974 if (id->driver_info & BTUSB_QCA_WCN6855) { 3975 data->qca_dump.id_vendor = id->idVendor; 3976 data->qca_dump.id_product = id->idProduct; 3977 data->recv_event = btusb_recv_evt_qca; 3978 data->recv_acl = btusb_recv_acl_qca; 3979 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 3980 data->setup_on_usb = btusb_setup_qca; 3981 hdev->shutdown = btusb_shutdown_qca; 3982 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 3983 hdev->reset = btusb_qca_reset; 3984 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3985 hci_set_msft_opcode(hdev, 0xFD70); 3986 } 3987 3988 if (id->driver_info & BTUSB_AMP) { 3989 /* AMP controllers do not support SCO packets */ 3990 data->isoc = NULL; 3991 } else { 3992 /* Interface orders are hardcoded in the specification */ 3993 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3994 data->isoc_ifnum = ifnum_base + 1; 3995 } 3996 3997 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 3998 (id->driver_info & BTUSB_REALTEK)) { 3999 btrtl_set_driver_name(hdev, btusb_driver.name); 4000 hdev->setup = btusb_setup_realtek; 4001 hdev->shutdown = btrtl_shutdown_realtek; 4002 hdev->reset = btusb_rtl_reset; 4003 hdev->hw_error = btusb_rtl_hw_error; 4004 4005 /* Realtek devices need to set remote wakeup on auto-suspend */ 4006 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4007 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4008 } 4009 4010 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4011 /* Support is advertised, but not implemented */ 4012 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4013 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4014 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4015 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4016 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks); 4017 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks); 4018 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks); 4019 } 4020 4021 if (!reset) 4022 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4023 4024 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4025 if (!disable_scofix) 4026 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4027 } 4028 4029 if (id->driver_info & BTUSB_BROKEN_ISOC) 4030 data->isoc = NULL; 4031 4032 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4033 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4034 4035 if (id->driver_info & BTUSB_INVALID_LE_STATES) 4036 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks); 4037 4038 if (id->driver_info & BTUSB_DIGIANSWER) { 4039 data->cmdreq_type = USB_TYPE_VENDOR; 4040 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4041 } 4042 4043 if (id->driver_info & BTUSB_CSR) { 4044 struct usb_device *udev = data->udev; 4045 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4046 4047 /* Old firmware would otherwise execute USB reset */ 4048 if (bcdDevice < 0x117) 4049 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4050 4051 /* This must be set first in case we disable it for fakes */ 4052 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4053 4054 /* Fake CSR devices with broken commands */ 4055 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4056 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4057 hdev->setup = btusb_setup_csr; 4058 } 4059 4060 if (id->driver_info & BTUSB_SNIFFER) { 4061 struct usb_device *udev = data->udev; 4062 4063 /* New sniffer firmware has crippled HCI interface */ 4064 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4065 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4066 } 4067 4068 if (id->driver_info & BTUSB_INTEL_BOOT) { 4069 /* A bug in the bootloader causes that interrupt interface is 4070 * only enabled after receiving SetInterface(0, AltSetting=0). 4071 */ 4072 err = usb_set_interface(data->udev, 0, 0); 4073 if (err < 0) { 4074 BT_ERR("failed to set interface 0, alt 0 %d", err); 4075 goto out_free_dev; 4076 } 4077 } 4078 4079 if (data->isoc) { 4080 err = usb_driver_claim_interface(&btusb_driver, 4081 data->isoc, data); 4082 if (err < 0) 4083 goto out_free_dev; 4084 4085 err = device_create_file(&intf->dev, &dev_attr_isoc_alt); 4086 if (err) 4087 goto out_free_dev; 4088 } 4089 4090 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4091 if (!usb_driver_claim_interface(&btusb_driver, 4092 data->diag, data)) 4093 __set_diag_interface(hdev); 4094 else 4095 data->diag = NULL; 4096 } 4097 4098 if (enable_autosuspend) 4099 usb_enable_autosuspend(data->udev); 4100 4101 data->poll_sync = enable_poll_sync; 4102 4103 err = hci_register_dev(hdev); 4104 if (err < 0) 4105 goto out_free_dev; 4106 4107 usb_set_intfdata(intf, data); 4108 4109 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4110 &force_poll_sync_fops); 4111 4112 return 0; 4113 4114 out_free_dev: 4115 if (data->reset_gpio) 4116 gpiod_put(data->reset_gpio); 4117 hci_free_dev(hdev); 4118 return err; 4119 } 4120 4121 static void btusb_disconnect(struct usb_interface *intf) 4122 { 4123 struct btusb_data *data = usb_get_intfdata(intf); 4124 struct hci_dev *hdev; 4125 4126 BT_DBG("intf %p", intf); 4127 4128 if (!data) 4129 return; 4130 4131 hdev = data->hdev; 4132 usb_set_intfdata(data->intf, NULL); 4133 4134 if (data->isoc) { 4135 device_remove_file(&intf->dev, &dev_attr_isoc_alt); 4136 usb_set_intfdata(data->isoc, NULL); 4137 } 4138 4139 if (data->diag) 4140 usb_set_intfdata(data->diag, NULL); 4141 4142 if (data->disconnect) 4143 data->disconnect(hdev); 4144 4145 hci_unregister_dev(hdev); 4146 4147 if (intf == data->intf) { 4148 if (data->isoc) 4149 usb_driver_release_interface(&btusb_driver, data->isoc); 4150 if (data->diag) 4151 usb_driver_release_interface(&btusb_driver, data->diag); 4152 } else if (intf == data->isoc) { 4153 if (data->diag) 4154 usb_driver_release_interface(&btusb_driver, data->diag); 4155 usb_driver_release_interface(&btusb_driver, data->intf); 4156 } else if (intf == data->diag) { 4157 usb_driver_release_interface(&btusb_driver, data->intf); 4158 if (data->isoc) 4159 usb_driver_release_interface(&btusb_driver, data->isoc); 4160 } 4161 4162 if (data->oob_wake_irq) 4163 device_init_wakeup(&data->udev->dev, false); 4164 4165 if (data->reset_gpio) 4166 gpiod_put(data->reset_gpio); 4167 4168 hci_free_dev(hdev); 4169 } 4170 4171 #ifdef CONFIG_PM 4172 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4173 { 4174 struct btusb_data *data = usb_get_intfdata(intf); 4175 4176 BT_DBG("intf %p", intf); 4177 4178 /* Don't auto-suspend if there are connections; external suspend calls 4179 * shall never fail. 4180 */ 4181 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev)) 4182 return -EBUSY; 4183 4184 if (data->suspend_count++) 4185 return 0; 4186 4187 spin_lock_irq(&data->txlock); 4188 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4189 set_bit(BTUSB_SUSPENDING, &data->flags); 4190 spin_unlock_irq(&data->txlock); 4191 } else { 4192 spin_unlock_irq(&data->txlock); 4193 data->suspend_count--; 4194 return -EBUSY; 4195 } 4196 4197 cancel_work_sync(&data->work); 4198 4199 if (data->suspend) 4200 data->suspend(data->hdev); 4201 4202 btusb_stop_traffic(data); 4203 usb_kill_anchored_urbs(&data->tx_anchor); 4204 4205 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4206 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4207 enable_irq_wake(data->oob_wake_irq); 4208 enable_irq(data->oob_wake_irq); 4209 } 4210 4211 /* For global suspend, Realtek devices lose the loaded fw 4212 * in them. But for autosuspend, firmware should remain. 4213 * Actually, it depends on whether the usb host sends 4214 * set feature (enable wakeup) or not. 4215 */ 4216 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4217 if (PMSG_IS_AUTO(message) && 4218 device_can_wakeup(&data->udev->dev)) 4219 data->udev->do_remote_wakeup = 1; 4220 else if (!PMSG_IS_AUTO(message) && 4221 !device_may_wakeup(&data->udev->dev)) { 4222 data->udev->do_remote_wakeup = 0; 4223 data->udev->reset_resume = 1; 4224 } 4225 } 4226 4227 return 0; 4228 } 4229 4230 static void play_deferred(struct btusb_data *data) 4231 { 4232 struct urb *urb; 4233 int err; 4234 4235 while ((urb = usb_get_from_anchor(&data->deferred))) { 4236 usb_anchor_urb(urb, &data->tx_anchor); 4237 4238 err = usb_submit_urb(urb, GFP_ATOMIC); 4239 if (err < 0) { 4240 if (err != -EPERM && err != -ENODEV) 4241 BT_ERR("%s urb %p submission failed (%d)", 4242 data->hdev->name, urb, -err); 4243 kfree(urb->setup_packet); 4244 usb_unanchor_urb(urb); 4245 usb_free_urb(urb); 4246 break; 4247 } 4248 4249 data->tx_in_flight++; 4250 usb_free_urb(urb); 4251 } 4252 4253 /* Cleanup the rest deferred urbs. */ 4254 while ((urb = usb_get_from_anchor(&data->deferred))) { 4255 kfree(urb->setup_packet); 4256 usb_free_urb(urb); 4257 } 4258 } 4259 4260 static int btusb_resume(struct usb_interface *intf) 4261 { 4262 struct btusb_data *data = usb_get_intfdata(intf); 4263 struct hci_dev *hdev = data->hdev; 4264 int err = 0; 4265 4266 BT_DBG("intf %p", intf); 4267 4268 if (--data->suspend_count) 4269 return 0; 4270 4271 /* Disable only if not already disabled (keep it balanced) */ 4272 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4273 disable_irq(data->oob_wake_irq); 4274 disable_irq_wake(data->oob_wake_irq); 4275 } 4276 4277 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4278 goto done; 4279 4280 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4281 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4282 if (err < 0) { 4283 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4284 goto failed; 4285 } 4286 } 4287 4288 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4289 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4290 if (err < 0) { 4291 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4292 goto failed; 4293 } 4294 4295 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4296 } 4297 4298 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4299 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4300 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4301 else 4302 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4303 } 4304 4305 if (data->resume) 4306 data->resume(hdev); 4307 4308 spin_lock_irq(&data->txlock); 4309 play_deferred(data); 4310 clear_bit(BTUSB_SUSPENDING, &data->flags); 4311 spin_unlock_irq(&data->txlock); 4312 schedule_work(&data->work); 4313 4314 return 0; 4315 4316 failed: 4317 usb_scuttle_anchored_urbs(&data->deferred); 4318 done: 4319 spin_lock_irq(&data->txlock); 4320 clear_bit(BTUSB_SUSPENDING, &data->flags); 4321 spin_unlock_irq(&data->txlock); 4322 4323 return err; 4324 } 4325 #endif 4326 4327 #ifdef CONFIG_DEV_COREDUMP 4328 static void btusb_coredump(struct device *dev) 4329 { 4330 struct btusb_data *data = dev_get_drvdata(dev); 4331 struct hci_dev *hdev = data->hdev; 4332 4333 if (hdev->dump.coredump) 4334 hdev->dump.coredump(hdev); 4335 } 4336 #endif 4337 4338 static struct usb_driver btusb_driver = { 4339 .name = "btusb", 4340 .probe = btusb_probe, 4341 .disconnect = btusb_disconnect, 4342 #ifdef CONFIG_PM 4343 .suspend = btusb_suspend, 4344 .resume = btusb_resume, 4345 #endif 4346 .id_table = btusb_table, 4347 .supports_autosuspend = 1, 4348 .disable_hub_initiated_lpm = 1, 4349 4350 #ifdef CONFIG_DEV_COREDUMP 4351 .driver = { 4352 .coredump = btusb_coredump, 4353 }, 4354 #endif 4355 }; 4356 4357 module_usb_driver(btusb_driver); 4358 4359 module_param(disable_scofix, bool, 0644); 4360 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4361 4362 module_param(force_scofix, bool, 0644); 4363 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4364 4365 module_param(enable_autosuspend, bool, 0644); 4366 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4367 4368 module_param(reset, bool, 0644); 4369 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4370 4371 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4372 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4373 MODULE_VERSION(VERSION); 4374 MODULE_LICENSE("GPL"); 4375