1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Generic Bluetooth USB driver 5 * 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 7 */ 8 9 #include <linux/dmi.h> 10 #include <linux/module.h> 11 #include <linux/usb.h> 12 #include <linux/usb/quirks.h> 13 #include <linux/firmware.h> 14 #include <linux/iopoll.h> 15 #include <linux/of_device.h> 16 #include <linux/of_irq.h> 17 #include <linux/suspend.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/debugfs.h> 20 #include <linux/unaligned.h> 21 22 #include <net/bluetooth/bluetooth.h> 23 #include <net/bluetooth/hci_core.h> 24 #include <net/bluetooth/hci_drv.h> 25 26 #include "btintel.h" 27 #include "btbcm.h" 28 #include "btrtl.h" 29 #include "btmtk.h" 30 31 #define VERSION "0.8" 32 33 static bool disable_scofix; 34 static bool force_scofix; 35 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 36 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 37 static bool reset = true; 38 39 static struct usb_driver btusb_driver; 40 41 #define BTUSB_IGNORE BIT(0) 42 #define BTUSB_DIGIANSWER BIT(1) 43 #define BTUSB_CSR BIT(2) 44 #define BTUSB_SNIFFER BIT(3) 45 #define BTUSB_BCM92035 BIT(4) 46 #define BTUSB_BROKEN_ISOC BIT(5) 47 #define BTUSB_WRONG_SCO_MTU BIT(6) 48 #define BTUSB_ATH3012 BIT(7) 49 #define BTUSB_INTEL_COMBINED BIT(8) 50 #define BTUSB_INTEL_BOOT BIT(9) 51 #define BTUSB_BCM_PATCHRAM BIT(10) 52 #define BTUSB_MARVELL BIT(11) 53 #define BTUSB_SWAVE BIT(12) 54 #define BTUSB_AMP BIT(13) 55 #define BTUSB_QCA_ROME BIT(14) 56 #define BTUSB_BCM_APPLE BIT(15) 57 #define BTUSB_REALTEK BIT(16) 58 #define BTUSB_BCM2045 BIT(17) 59 #define BTUSB_IFNUM_2 BIT(18) 60 #define BTUSB_CW6622 BIT(19) 61 #define BTUSB_MEDIATEK BIT(20) 62 #define BTUSB_WIDEBAND_SPEECH BIT(21) 63 #define BTUSB_INVALID_LE_STATES BIT(22) 64 #define BTUSB_QCA_WCN6855 BIT(23) 65 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 66 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 67 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 68 #define BTUSB_ACTIONS_SEMI BIT(27) 69 70 static const struct usb_device_id btusb_table[] = { 71 /* Generic Bluetooth USB device */ 72 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 73 74 /* Generic Bluetooth AMP device */ 75 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 76 77 /* Generic Bluetooth USB interface */ 78 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 79 80 /* Apple-specific (Broadcom) devices */ 81 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 82 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 83 84 /* MediaTek MT76x0E */ 85 { USB_DEVICE(0x0e8d, 0x763f) }, 86 87 /* Broadcom SoftSailing reporting vendor specific */ 88 { USB_DEVICE(0x0a5c, 0x21e1) }, 89 90 /* Apple MacBookPro 7,1 */ 91 { USB_DEVICE(0x05ac, 0x8213) }, 92 93 /* Apple iMac11,1 */ 94 { USB_DEVICE(0x05ac, 0x8215) }, 95 96 /* Apple MacBookPro6,2 */ 97 { USB_DEVICE(0x05ac, 0x8218) }, 98 99 /* Apple MacBookAir3,1, MacBookAir3,2 */ 100 { USB_DEVICE(0x05ac, 0x821b) }, 101 102 /* Apple MacBookAir4,1 */ 103 { USB_DEVICE(0x05ac, 0x821f) }, 104 105 /* Apple MacBookPro8,2 */ 106 { USB_DEVICE(0x05ac, 0x821a) }, 107 108 /* Apple MacMini5,1 */ 109 { USB_DEVICE(0x05ac, 0x8281) }, 110 111 /* AVM BlueFRITZ! USB v2.0 */ 112 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 113 114 /* Bluetooth Ultraport Module from IBM */ 115 { USB_DEVICE(0x04bf, 0x030a) }, 116 117 /* ALPS Modules with non-standard id */ 118 { USB_DEVICE(0x044e, 0x3001) }, 119 { USB_DEVICE(0x044e, 0x3002) }, 120 121 /* Ericsson with non-standard id */ 122 { USB_DEVICE(0x0bdb, 0x1002) }, 123 124 /* Canyon CN-BTU1 with HID interfaces */ 125 { USB_DEVICE(0x0c10, 0x0000) }, 126 127 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 128 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 129 130 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 131 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 132 .driver_info = BTUSB_BCM_PATCHRAM }, 133 134 /* Broadcom BCM920703 (HTC Vive) */ 135 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 136 .driver_info = BTUSB_BCM_PATCHRAM }, 137 138 /* Foxconn - Hon Hai */ 139 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 140 .driver_info = BTUSB_BCM_PATCHRAM }, 141 142 /* Lite-On Technology - Broadcom based */ 143 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 144 .driver_info = BTUSB_BCM_PATCHRAM }, 145 146 /* Broadcom devices with vendor specific id */ 147 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 148 .driver_info = BTUSB_BCM_PATCHRAM }, 149 150 /* ASUSTek Computer - Broadcom based */ 151 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 152 .driver_info = BTUSB_BCM_PATCHRAM }, 153 154 /* Belkin F8065bf - Broadcom based */ 155 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 156 .driver_info = BTUSB_BCM_PATCHRAM }, 157 158 /* IMC Networks - Broadcom based */ 159 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 160 .driver_info = BTUSB_BCM_PATCHRAM }, 161 162 /* Dell Computer - Broadcom based */ 163 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 164 .driver_info = BTUSB_BCM_PATCHRAM }, 165 166 /* Toshiba Corp - Broadcom based */ 167 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 168 .driver_info = BTUSB_BCM_PATCHRAM }, 169 170 /* Intel Bluetooth USB Bootloader (RAM module) */ 171 { USB_DEVICE(0x8087, 0x0a5a), 172 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 173 174 { } /* Terminating entry */ 175 }; 176 177 MODULE_DEVICE_TABLE(usb, btusb_table); 178 179 static const struct usb_device_id quirks_table[] = { 180 /* CSR BlueCore devices */ 181 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 182 183 /* Broadcom BCM2033 without firmware */ 184 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 185 186 /* Broadcom BCM2045 devices */ 187 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 188 189 /* Atheros 3011 with sflash firmware */ 190 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 196 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 197 198 /* Atheros AR9285 Malbec with sflash firmware */ 199 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 200 201 /* Atheros 3012 with sflash firmware */ 202 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 252 253 /* Atheros AR5BBU12 with sflash firmware */ 254 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 255 256 /* Atheros AR5BBU12 with sflash firmware */ 257 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 258 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 259 260 /* QCA ROME chipset */ 261 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 262 BTUSB_WIDEBAND_SPEECH }, 263 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 264 BTUSB_WIDEBAND_SPEECH }, 265 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 266 BTUSB_WIDEBAND_SPEECH }, 267 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 268 BTUSB_WIDEBAND_SPEECH }, 269 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 270 BTUSB_WIDEBAND_SPEECH }, 271 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 272 BTUSB_WIDEBAND_SPEECH }, 273 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 274 BTUSB_WIDEBAND_SPEECH }, 275 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 276 BTUSB_WIDEBAND_SPEECH }, 277 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 278 BTUSB_WIDEBAND_SPEECH }, 279 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 280 BTUSB_WIDEBAND_SPEECH }, 281 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 282 BTUSB_WIDEBAND_SPEECH }, 283 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 284 BTUSB_WIDEBAND_SPEECH }, 285 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 286 BTUSB_WIDEBAND_SPEECH }, 287 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 288 BTUSB_WIDEBAND_SPEECH }, 289 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 290 BTUSB_WIDEBAND_SPEECH }, 291 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 292 BTUSB_WIDEBAND_SPEECH }, 293 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 294 BTUSB_WIDEBAND_SPEECH }, 295 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 296 BTUSB_WIDEBAND_SPEECH }, 297 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 298 BTUSB_WIDEBAND_SPEECH }, 299 300 /* QCA WCN6855 chipset */ 301 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 302 BTUSB_WIDEBAND_SPEECH }, 303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 304 BTUSB_WIDEBAND_SPEECH }, 305 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 306 BTUSB_WIDEBAND_SPEECH }, 307 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 308 BTUSB_WIDEBAND_SPEECH }, 309 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 310 BTUSB_WIDEBAND_SPEECH }, 311 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 312 BTUSB_WIDEBAND_SPEECH }, 313 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 314 BTUSB_WIDEBAND_SPEECH }, 315 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH }, 317 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 318 BTUSB_WIDEBAND_SPEECH }, 319 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 320 BTUSB_WIDEBAND_SPEECH }, 321 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH }, 323 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 324 BTUSB_WIDEBAND_SPEECH }, 325 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 326 BTUSB_WIDEBAND_SPEECH }, 327 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH }, 329 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 330 BTUSB_WIDEBAND_SPEECH }, 331 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 332 BTUSB_WIDEBAND_SPEECH }, 333 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH }, 335 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 336 BTUSB_WIDEBAND_SPEECH }, 337 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 338 BTUSB_WIDEBAND_SPEECH }, 339 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH }, 341 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 342 BTUSB_WIDEBAND_SPEECH }, 343 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 344 BTUSB_WIDEBAND_SPEECH }, 345 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH }, 347 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 348 BTUSB_WIDEBAND_SPEECH }, 349 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 350 BTUSB_WIDEBAND_SPEECH }, 351 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH }, 353 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 354 BTUSB_WIDEBAND_SPEECH }, 355 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 356 BTUSB_WIDEBAND_SPEECH }, 357 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH }, 359 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 360 BTUSB_WIDEBAND_SPEECH }, 361 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 362 BTUSB_WIDEBAND_SPEECH }, 363 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH }, 365 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 366 BTUSB_WIDEBAND_SPEECH }, 367 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 368 BTUSB_WIDEBAND_SPEECH }, 369 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH }, 371 372 /* QCA WCN785x chipset */ 373 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 374 BTUSB_WIDEBAND_SPEECH }, 375 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH }, 377 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 | 378 BTUSB_WIDEBAND_SPEECH }, 379 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 | 380 BTUSB_WIDEBAND_SPEECH }, 381 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH }, 383 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 | 384 BTUSB_WIDEBAND_SPEECH }, 385 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 | 386 BTUSB_WIDEBAND_SPEECH }, 387 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 | 388 BTUSB_WIDEBAND_SPEECH }, 389 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 | 390 BTUSB_WIDEBAND_SPEECH }, 391 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 | 392 BTUSB_WIDEBAND_SPEECH }, 393 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 | 394 BTUSB_WIDEBAND_SPEECH }, 395 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 | 396 BTUSB_WIDEBAND_SPEECH }, 397 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 | 398 BTUSB_WIDEBAND_SPEECH }, 399 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH }, 401 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 | 402 BTUSB_WIDEBAND_SPEECH }, 403 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 | 404 BTUSB_WIDEBAND_SPEECH }, 405 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 | 406 BTUSB_WIDEBAND_SPEECH }, 407 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH }, 409 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 | 410 BTUSB_WIDEBAND_SPEECH }, 411 412 /* Broadcom BCM2035 */ 413 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 414 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 415 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 416 417 /* Broadcom BCM2045 */ 418 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 420 421 /* IBM/Lenovo ThinkPad with Broadcom chip */ 422 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 424 425 /* HP laptop with Broadcom chip */ 426 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 427 428 /* Dell laptop with Broadcom chip */ 429 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 430 431 /* Dell Wireless 370 and 410 devices */ 432 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 434 435 /* Belkin F8T012 and F8T013 devices */ 436 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 438 439 /* Asus WL-BTD202 device */ 440 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 441 442 /* Kensington Bluetooth USB adapter */ 443 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 444 445 /* RTX Telecom based adapters with buggy SCO support */ 446 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 447 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 448 449 /* CONWISE Technology based adapters with buggy SCO support */ 450 { USB_DEVICE(0x0e5e, 0x6622), 451 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 452 453 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 454 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 455 456 /* Digianswer devices */ 457 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 458 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 459 460 /* CSR BlueCore Bluetooth Sniffer */ 461 { USB_DEVICE(0x0a12, 0x0002), 462 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 463 464 /* Frontline ComProbe Bluetooth Sniffer */ 465 { USB_DEVICE(0x16d3, 0x0002), 466 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 467 468 /* Marvell Bluetooth devices */ 469 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 470 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 471 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 472 473 /* Intel Bluetooth devices */ 474 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 475 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 476 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 477 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 480 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 481 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 482 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 483 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED }, 484 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 485 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 486 BTUSB_INTEL_NO_WBS_SUPPORT | 487 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 489 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 490 BTUSB_INTEL_NO_WBS_SUPPORT | 491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 492 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 493 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 494 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 495 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 496 497 /* Other Intel Bluetooth devices */ 498 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 499 .driver_info = BTUSB_IGNORE }, 500 501 /* Realtek 8821CE Bluetooth devices */ 502 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 503 BTUSB_WIDEBAND_SPEECH }, 504 505 /* Realtek 8822CE Bluetooth devices */ 506 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 507 BTUSB_WIDEBAND_SPEECH }, 508 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 509 BTUSB_WIDEBAND_SPEECH }, 510 511 /* Realtek 8822CU Bluetooth devices */ 512 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 513 BTUSB_WIDEBAND_SPEECH }, 514 515 /* Realtek 8851BE Bluetooth devices */ 516 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK }, 517 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, 518 519 /* Realtek 8852AE Bluetooth devices */ 520 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 521 BTUSB_WIDEBAND_SPEECH }, 522 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 523 BTUSB_WIDEBAND_SPEECH }, 524 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 525 BTUSB_WIDEBAND_SPEECH }, 526 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 527 BTUSB_WIDEBAND_SPEECH }, 528 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 529 BTUSB_WIDEBAND_SPEECH }, 530 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 531 BTUSB_WIDEBAND_SPEECH }, 532 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 533 BTUSB_WIDEBAND_SPEECH }, 534 535 /* Realtek 8852CE Bluetooth devices */ 536 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 537 BTUSB_WIDEBAND_SPEECH }, 538 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 539 BTUSB_WIDEBAND_SPEECH }, 540 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 541 BTUSB_WIDEBAND_SPEECH }, 542 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 543 BTUSB_WIDEBAND_SPEECH }, 544 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 545 BTUSB_WIDEBAND_SPEECH }, 546 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 547 BTUSB_WIDEBAND_SPEECH }, 548 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 549 BTUSB_WIDEBAND_SPEECH }, 550 551 /* Realtek 8852BE Bluetooth devices */ 552 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 553 BTUSB_WIDEBAND_SPEECH }, 554 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 555 BTUSB_WIDEBAND_SPEECH }, 556 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 557 BTUSB_WIDEBAND_SPEECH }, 558 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 559 BTUSB_WIDEBAND_SPEECH }, 560 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 561 BTUSB_WIDEBAND_SPEECH }, 562 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 563 BTUSB_WIDEBAND_SPEECH }, 564 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 565 BTUSB_WIDEBAND_SPEECH }, 566 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 567 BTUSB_WIDEBAND_SPEECH }, 568 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 569 BTUSB_WIDEBAND_SPEECH }, 570 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 571 BTUSB_WIDEBAND_SPEECH }, 572 573 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 574 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 575 BTUSB_WIDEBAND_SPEECH }, 576 577 /* Realtek 8922AE Bluetooth devices */ 578 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK | 579 BTUSB_WIDEBAND_SPEECH }, 580 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK | 581 BTUSB_WIDEBAND_SPEECH }, 582 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK | 583 BTUSB_WIDEBAND_SPEECH }, 584 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK | 585 BTUSB_WIDEBAND_SPEECH }, 586 587 /* Realtek Bluetooth devices */ 588 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 589 .driver_info = BTUSB_REALTEK }, 590 591 /* MediaTek Bluetooth devices */ 592 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 593 .driver_info = BTUSB_MEDIATEK | 594 BTUSB_WIDEBAND_SPEECH }, 595 596 /* Additional MediaTek MT7615E Bluetooth devices */ 597 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 598 599 /* Additional MediaTek MT7663 Bluetooth devices */ 600 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 601 BTUSB_WIDEBAND_SPEECH }, 602 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 603 BTUSB_WIDEBAND_SPEECH }, 604 605 /* Additional MediaTek MT7668 Bluetooth devices */ 606 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 607 BTUSB_WIDEBAND_SPEECH }, 608 609 /* Additional MediaTek MT7920 Bluetooth devices */ 610 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK | 611 BTUSB_WIDEBAND_SPEECH }, 612 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK | 613 BTUSB_WIDEBAND_SPEECH }, 614 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK | 615 BTUSB_WIDEBAND_SPEECH }, 616 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK | 617 BTUSB_WIDEBAND_SPEECH }, 618 619 /* Additional MediaTek MT7921 Bluetooth devices */ 620 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 621 BTUSB_WIDEBAND_SPEECH }, 622 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 623 BTUSB_WIDEBAND_SPEECH }, 624 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 625 BTUSB_WIDEBAND_SPEECH }, 626 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 627 BTUSB_WIDEBAND_SPEECH }, 628 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 629 BTUSB_WIDEBAND_SPEECH }, 630 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 631 BTUSB_WIDEBAND_SPEECH }, 632 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 633 BTUSB_WIDEBAND_SPEECH }, 634 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 635 BTUSB_WIDEBAND_SPEECH }, 636 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 637 BTUSB_WIDEBAND_SPEECH }, 638 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK | 639 BTUSB_WIDEBAND_SPEECH }, 640 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 641 BTUSB_WIDEBAND_SPEECH }, 642 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 643 BTUSB_WIDEBAND_SPEECH }, 644 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 645 BTUSB_WIDEBAND_SPEECH }, 646 647 /* MediaTek MT7922 Bluetooth devices */ 648 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 649 BTUSB_WIDEBAND_SPEECH }, 650 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK | 651 BTUSB_WIDEBAND_SPEECH }, 652 653 /* MediaTek MT7922A Bluetooth devices */ 654 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 655 BTUSB_WIDEBAND_SPEECH }, 656 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 657 BTUSB_WIDEBAND_SPEECH }, 658 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 659 BTUSB_WIDEBAND_SPEECH }, 660 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 661 BTUSB_WIDEBAND_SPEECH }, 662 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 663 BTUSB_WIDEBAND_SPEECH }, 664 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 665 BTUSB_WIDEBAND_SPEECH }, 666 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 667 BTUSB_WIDEBAND_SPEECH }, 668 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 669 BTUSB_WIDEBAND_SPEECH }, 670 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 671 BTUSB_WIDEBAND_SPEECH }, 672 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK | 673 BTUSB_WIDEBAND_SPEECH }, 674 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK | 675 BTUSB_WIDEBAND_SPEECH }, 676 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 677 BTUSB_WIDEBAND_SPEECH }, 678 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 679 BTUSB_WIDEBAND_SPEECH }, 680 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 681 BTUSB_WIDEBAND_SPEECH }, 682 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK | 683 BTUSB_WIDEBAND_SPEECH }, 684 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 685 BTUSB_WIDEBAND_SPEECH }, 686 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 687 BTUSB_WIDEBAND_SPEECH }, 688 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 689 BTUSB_WIDEBAND_SPEECH }, 690 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 691 BTUSB_WIDEBAND_SPEECH }, 692 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 693 BTUSB_WIDEBAND_SPEECH }, 694 695 /* Additional MediaTek MT7925 Bluetooth devices */ 696 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 697 BTUSB_WIDEBAND_SPEECH }, 698 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 699 BTUSB_WIDEBAND_SPEECH }, 700 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK | 701 BTUSB_WIDEBAND_SPEECH }, 702 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK | 703 BTUSB_WIDEBAND_SPEECH }, 704 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK | 705 BTUSB_WIDEBAND_SPEECH }, 706 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK | 707 BTUSB_WIDEBAND_SPEECH }, 708 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK | 709 BTUSB_WIDEBAND_SPEECH }, 710 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK | 711 BTUSB_WIDEBAND_SPEECH }, 712 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK | 713 BTUSB_WIDEBAND_SPEECH }, 714 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 715 BTUSB_WIDEBAND_SPEECH }, 716 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 717 BTUSB_WIDEBAND_SPEECH }, 718 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK | 719 BTUSB_WIDEBAND_SPEECH }, 720 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK | 721 BTUSB_WIDEBAND_SPEECH }, 722 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK | 723 BTUSB_WIDEBAND_SPEECH }, 724 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK | 725 BTUSB_WIDEBAND_SPEECH }, 726 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK | 727 BTUSB_WIDEBAND_SPEECH }, 728 729 /* Additional Realtek 8723AE Bluetooth devices */ 730 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 731 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 732 733 /* Additional Realtek 8723BE Bluetooth devices */ 734 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 735 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 736 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 737 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 738 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 739 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 740 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 741 742 /* Additional Realtek 8723BU Bluetooth devices */ 743 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 744 745 /* Additional Realtek 8723DE Bluetooth devices */ 746 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 747 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 748 749 /* Additional Realtek 8761BUV Bluetooth devices */ 750 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 751 BTUSB_WIDEBAND_SPEECH }, 752 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 753 BTUSB_WIDEBAND_SPEECH }, 754 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 755 BTUSB_WIDEBAND_SPEECH }, 756 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 757 BTUSB_WIDEBAND_SPEECH }, 758 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 759 BTUSB_WIDEBAND_SPEECH }, 760 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 761 BTUSB_WIDEBAND_SPEECH }, 762 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 763 BTUSB_WIDEBAND_SPEECH }, 764 765 /* Additional Realtek 8821AE Bluetooth devices */ 766 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 767 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 768 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 769 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 770 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 771 772 /* Additional Realtek 8822BE Bluetooth devices */ 773 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 774 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 775 776 /* Additional Realtek 8822CE Bluetooth devices */ 777 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 778 BTUSB_WIDEBAND_SPEECH }, 779 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 780 BTUSB_WIDEBAND_SPEECH }, 781 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 782 BTUSB_WIDEBAND_SPEECH }, 783 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 784 BTUSB_WIDEBAND_SPEECH }, 785 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 786 BTUSB_WIDEBAND_SPEECH }, 787 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 788 BTUSB_WIDEBAND_SPEECH }, 789 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 790 BTUSB_WIDEBAND_SPEECH }, 791 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 792 BTUSB_WIDEBAND_SPEECH }, 793 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 794 BTUSB_WIDEBAND_SPEECH }, 795 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 796 BTUSB_WIDEBAND_SPEECH }, 797 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 798 BTUSB_WIDEBAND_SPEECH }, 799 800 /* Actions Semiconductor ATS2851 based devices */ 801 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 802 803 /* Silicon Wave based devices */ 804 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 805 806 { } /* Terminating entry */ 807 }; 808 809 /* The Bluetooth USB module build into some devices needs to be reset on resume, 810 * this is a problem with the platform (likely shutting off all power) not with 811 * the module itself. So we use a DMI list to match known broken platforms. 812 */ 813 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 814 { 815 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 816 .matches = { 817 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 818 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 819 }, 820 }, 821 { 822 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 823 .matches = { 824 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 825 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 826 }, 827 }, 828 { 829 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 830 .matches = { 831 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 832 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 833 }, 834 }, 835 {} 836 }; 837 838 struct qca_dump_info { 839 /* fields for dump collection */ 840 u16 id_vendor; 841 u16 id_product; 842 u32 fw_version; 843 u32 controller_id; 844 u32 ram_dump_size; 845 u16 ram_dump_seqno; 846 }; 847 848 #define BTUSB_MAX_ISOC_FRAMES 10 849 850 #define BTUSB_INTR_RUNNING 0 851 #define BTUSB_BULK_RUNNING 1 852 #define BTUSB_ISOC_RUNNING 2 853 #define BTUSB_SUSPENDING 3 854 #define BTUSB_DID_ISO_RESUME 4 855 #define BTUSB_BOOTLOADER 5 856 #define BTUSB_DOWNLOADING 6 857 #define BTUSB_FIRMWARE_LOADED 7 858 #define BTUSB_FIRMWARE_FAILED 8 859 #define BTUSB_BOOTING 9 860 #define BTUSB_DIAG_RUNNING 10 861 #define BTUSB_OOB_WAKE_ENABLED 11 862 #define BTUSB_HW_RESET_ACTIVE 12 863 #define BTUSB_TX_WAIT_VND_EVT 13 864 #define BTUSB_WAKEUP_AUTOSUSPEND 14 865 #define BTUSB_USE_ALT3_FOR_WBS 15 866 #define BTUSB_ALT6_CONTINUOUS_TX 16 867 #define BTUSB_HW_SSR_ACTIVE 17 868 869 struct btusb_data { 870 struct hci_dev *hdev; 871 struct usb_device *udev; 872 struct usb_interface *intf; 873 struct usb_interface *isoc; 874 struct usb_interface *diag; 875 unsigned isoc_ifnum; 876 877 unsigned long flags; 878 879 bool poll_sync; 880 int intr_interval; 881 struct work_struct work; 882 struct work_struct waker; 883 struct delayed_work rx_work; 884 885 struct sk_buff_head acl_q; 886 887 struct usb_anchor deferred; 888 struct usb_anchor tx_anchor; 889 int tx_in_flight; 890 spinlock_t txlock; 891 892 struct usb_anchor intr_anchor; 893 struct usb_anchor bulk_anchor; 894 struct usb_anchor isoc_anchor; 895 struct usb_anchor diag_anchor; 896 struct usb_anchor ctrl_anchor; 897 spinlock_t rxlock; 898 899 struct sk_buff *evt_skb; 900 struct sk_buff *acl_skb; 901 struct sk_buff *sco_skb; 902 903 struct usb_endpoint_descriptor *intr_ep; 904 struct usb_endpoint_descriptor *bulk_tx_ep; 905 struct usb_endpoint_descriptor *bulk_rx_ep; 906 struct usb_endpoint_descriptor *isoc_tx_ep; 907 struct usb_endpoint_descriptor *isoc_rx_ep; 908 struct usb_endpoint_descriptor *diag_tx_ep; 909 struct usb_endpoint_descriptor *diag_rx_ep; 910 911 struct gpio_desc *reset_gpio; 912 913 __u8 cmdreq_type; 914 __u8 cmdreq; 915 916 unsigned int sco_num; 917 unsigned int air_mode; 918 bool usb_alt6_packet_flow; 919 int isoc_altsetting; 920 int suspend_count; 921 922 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 923 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 924 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 925 926 int (*setup_on_usb)(struct hci_dev *hdev); 927 928 int (*suspend)(struct hci_dev *hdev); 929 int (*resume)(struct hci_dev *hdev); 930 int (*disconnect)(struct hci_dev *hdev); 931 932 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 933 934 struct qca_dump_info qca_dump; 935 }; 936 937 static void btusb_reset(struct hci_dev *hdev) 938 { 939 struct btusb_data *data; 940 int err; 941 942 data = hci_get_drvdata(hdev); 943 /* This is not an unbalanced PM reference since the device will reset */ 944 err = usb_autopm_get_interface(data->intf); 945 if (err) { 946 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 947 return; 948 } 949 950 bt_dev_err(hdev, "Resetting usb device."); 951 usb_queue_reset_device(data->intf); 952 } 953 954 static void btusb_intel_reset(struct hci_dev *hdev) 955 { 956 struct btusb_data *data = hci_get_drvdata(hdev); 957 struct gpio_desc *reset_gpio = data->reset_gpio; 958 struct btintel_data *intel_data = hci_get_priv(hdev); 959 960 if (intel_data->acpi_reset_method) { 961 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 962 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 963 return; 964 } 965 966 bt_dev_err(hdev, "Initiating acpi reset method"); 967 /* If ACPI reset method fails, lets try with legacy GPIO 968 * toggling 969 */ 970 if (!intel_data->acpi_reset_method(hdev)) { 971 return; 972 } 973 } 974 975 if (!reset_gpio) { 976 btusb_reset(hdev); 977 return; 978 } 979 980 /* 981 * Toggle the hard reset line if the platform provides one. The reset 982 * is going to yank the device off the USB and then replug. So doing 983 * once is enough. The cleanup is handled correctly on the way out 984 * (standard USB disconnect), and the new device is detected cleanly 985 * and bound to the driver again like it should be. 986 */ 987 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 988 bt_dev_err(hdev, "last reset failed? Not resetting again"); 989 return; 990 } 991 992 bt_dev_err(hdev, "Initiating HW reset via gpio"); 993 gpiod_set_value_cansleep(reset_gpio, 1); 994 msleep(100); 995 gpiod_set_value_cansleep(reset_gpio, 0); 996 } 997 998 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 999 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 1000 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 1001 1002 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 1003 1004 struct rtk_dev_coredump_hdr { 1005 u8 type; 1006 u8 code; 1007 u8 reserved[2]; 1008 } __packed; 1009 1010 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 1011 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 1012 { 1013 struct sk_buff *skb; 1014 1015 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 1016 if (!skb) 1017 return; 1018 1019 skb_put_data(skb, hdr, sizeof(*hdr)); 1020 if (len) 1021 skb_put_data(skb, buf, len); 1022 1023 if (!hci_devcd_init(hdev, skb->len)) { 1024 hci_devcd_append(hdev, skb); 1025 hci_devcd_complete(hdev); 1026 } else { 1027 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 1028 kfree_skb(skb); 1029 } 1030 } 1031 1032 static void btusb_rtl_reset(struct hci_dev *hdev) 1033 { 1034 struct btusb_data *data = hci_get_drvdata(hdev); 1035 struct gpio_desc *reset_gpio = data->reset_gpio; 1036 struct rtk_dev_coredump_hdr hdr = { 1037 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1038 }; 1039 1040 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1041 1042 if (!reset_gpio) { 1043 btusb_reset(hdev); 1044 return; 1045 } 1046 1047 /* Toggle the hard reset line. The Realtek device is going to 1048 * yank itself off the USB and then replug. The cleanup is handled 1049 * correctly on the way out (standard USB disconnect), and the new 1050 * device is detected cleanly and bound to the driver again like 1051 * it should be. 1052 */ 1053 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1054 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1055 return; 1056 } 1057 1058 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1059 gpiod_set_value_cansleep(reset_gpio, 1); 1060 msleep(200); 1061 gpiod_set_value_cansleep(reset_gpio, 0); 1062 } 1063 1064 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1065 { 1066 struct rtk_dev_coredump_hdr hdr = { 1067 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1068 .code = code, 1069 }; 1070 1071 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1072 1073 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1074 } 1075 1076 static void btusb_qca_reset(struct hci_dev *hdev) 1077 { 1078 struct btusb_data *data = hci_get_drvdata(hdev); 1079 struct gpio_desc *reset_gpio = data->reset_gpio; 1080 1081 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1082 bt_dev_info(hdev, "Ramdump in progress, defer reset"); 1083 return; 1084 } 1085 1086 if (reset_gpio) { 1087 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1088 1089 /* Toggle the hard reset line. The qca bt device is going to 1090 * yank itself off the USB and then replug. The cleanup is handled 1091 * correctly on the way out (standard USB disconnect), and the new 1092 * device is detected cleanly and bound to the driver again like 1093 * it should be. 1094 */ 1095 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1096 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1097 return; 1098 } 1099 1100 gpiod_set_value_cansleep(reset_gpio, 0); 1101 msleep(200); 1102 gpiod_set_value_cansleep(reset_gpio, 1); 1103 1104 return; 1105 } 1106 1107 btusb_reset(hdev); 1108 } 1109 1110 static inline void btusb_free_frags(struct btusb_data *data) 1111 { 1112 unsigned long flags; 1113 1114 spin_lock_irqsave(&data->rxlock, flags); 1115 1116 dev_kfree_skb_irq(data->evt_skb); 1117 data->evt_skb = NULL; 1118 1119 dev_kfree_skb_irq(data->acl_skb); 1120 data->acl_skb = NULL; 1121 1122 dev_kfree_skb_irq(data->sco_skb); 1123 data->sco_skb = NULL; 1124 1125 spin_unlock_irqrestore(&data->rxlock, flags); 1126 } 1127 1128 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1129 { 1130 if (data->intr_interval) { 1131 /* Trigger dequeue immediately if an event is received */ 1132 schedule_delayed_work(&data->rx_work, 0); 1133 } 1134 1135 return data->recv_event(data->hdev, skb); 1136 } 1137 1138 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1139 { 1140 struct sk_buff *skb; 1141 unsigned long flags; 1142 int err = 0; 1143 1144 spin_lock_irqsave(&data->rxlock, flags); 1145 skb = data->evt_skb; 1146 1147 while (count) { 1148 int len; 1149 1150 if (!skb) { 1151 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1152 if (!skb) { 1153 err = -ENOMEM; 1154 break; 1155 } 1156 1157 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1158 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1159 } 1160 1161 len = min_t(uint, hci_skb_expect(skb), count); 1162 skb_put_data(skb, buffer, len); 1163 1164 count -= len; 1165 buffer += len; 1166 hci_skb_expect(skb) -= len; 1167 1168 if (skb->len == HCI_EVENT_HDR_SIZE) { 1169 /* Complete event header */ 1170 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1171 1172 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1173 kfree_skb(skb); 1174 skb = NULL; 1175 1176 err = -EILSEQ; 1177 break; 1178 } 1179 } 1180 1181 if (!hci_skb_expect(skb)) { 1182 /* Complete frame */ 1183 btusb_recv_event(data, skb); 1184 skb = NULL; 1185 } 1186 } 1187 1188 data->evt_skb = skb; 1189 spin_unlock_irqrestore(&data->rxlock, flags); 1190 1191 return err; 1192 } 1193 1194 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1195 { 1196 /* Only queue ACL packet if intr_interval is set as it means 1197 * force_poll_sync has been enabled. 1198 */ 1199 if (!data->intr_interval) 1200 return data->recv_acl(data->hdev, skb); 1201 1202 skb_queue_tail(&data->acl_q, skb); 1203 schedule_delayed_work(&data->rx_work, data->intr_interval); 1204 1205 return 0; 1206 } 1207 1208 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1209 { 1210 struct sk_buff *skb; 1211 unsigned long flags; 1212 int err = 0; 1213 1214 spin_lock_irqsave(&data->rxlock, flags); 1215 skb = data->acl_skb; 1216 1217 while (count) { 1218 int len; 1219 1220 if (!skb) { 1221 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1222 if (!skb) { 1223 err = -ENOMEM; 1224 break; 1225 } 1226 1227 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1228 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1229 } 1230 1231 len = min_t(uint, hci_skb_expect(skb), count); 1232 skb_put_data(skb, buffer, len); 1233 1234 count -= len; 1235 buffer += len; 1236 hci_skb_expect(skb) -= len; 1237 1238 if (skb->len == HCI_ACL_HDR_SIZE) { 1239 __le16 dlen = hci_acl_hdr(skb)->dlen; 1240 1241 /* Complete ACL header */ 1242 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1243 1244 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1245 kfree_skb(skb); 1246 skb = NULL; 1247 1248 err = -EILSEQ; 1249 break; 1250 } 1251 } 1252 1253 if (!hci_skb_expect(skb)) { 1254 /* Complete frame */ 1255 btusb_recv_acl(data, skb); 1256 skb = NULL; 1257 } 1258 } 1259 1260 data->acl_skb = skb; 1261 spin_unlock_irqrestore(&data->rxlock, flags); 1262 1263 return err; 1264 } 1265 1266 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1267 struct hci_sco_hdr *hdr) 1268 { 1269 __u16 handle; 1270 1271 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1272 // Can't validate, userspace controls everything. 1273 return true; 1274 1275 /* 1276 * USB isochronous transfers are not designed to be reliable and may 1277 * lose fragments. When this happens, the next first fragment 1278 * encountered might actually be a continuation fragment. 1279 * Validate the handle to detect it and drop it, or else the upper 1280 * layer will get garbage for a while. 1281 */ 1282 1283 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1284 1285 switch (hci_conn_lookup_type(hdev, handle)) { 1286 case SCO_LINK: 1287 case ESCO_LINK: 1288 return true; 1289 default: 1290 return false; 1291 } 1292 } 1293 1294 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1295 { 1296 struct sk_buff *skb; 1297 unsigned long flags; 1298 int err = 0; 1299 1300 spin_lock_irqsave(&data->rxlock, flags); 1301 skb = data->sco_skb; 1302 1303 while (count) { 1304 int len; 1305 1306 if (!skb) { 1307 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1308 if (!skb) { 1309 err = -ENOMEM; 1310 break; 1311 } 1312 1313 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1314 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1315 } 1316 1317 len = min_t(uint, hci_skb_expect(skb), count); 1318 skb_put_data(skb, buffer, len); 1319 1320 count -= len; 1321 buffer += len; 1322 hci_skb_expect(skb) -= len; 1323 1324 if (skb->len == HCI_SCO_HDR_SIZE) { 1325 /* Complete SCO header */ 1326 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1327 1328 hci_skb_expect(skb) = hdr->dlen; 1329 1330 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1331 !btusb_validate_sco_handle(data->hdev, hdr)) { 1332 kfree_skb(skb); 1333 skb = NULL; 1334 1335 err = -EILSEQ; 1336 break; 1337 } 1338 } 1339 1340 if (!hci_skb_expect(skb)) { 1341 /* Complete frame */ 1342 hci_recv_frame(data->hdev, skb); 1343 skb = NULL; 1344 } 1345 } 1346 1347 data->sco_skb = skb; 1348 spin_unlock_irqrestore(&data->rxlock, flags); 1349 1350 return err; 1351 } 1352 1353 static void btusb_intr_complete(struct urb *urb) 1354 { 1355 struct hci_dev *hdev = urb->context; 1356 struct btusb_data *data = hci_get_drvdata(hdev); 1357 int err; 1358 1359 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1360 urb->actual_length); 1361 1362 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1363 return; 1364 1365 if (urb->status == 0) { 1366 hdev->stat.byte_rx += urb->actual_length; 1367 1368 if (btusb_recv_intr(data, urb->transfer_buffer, 1369 urb->actual_length) < 0) { 1370 bt_dev_err(hdev, "corrupted event packet"); 1371 hdev->stat.err_rx++; 1372 } 1373 } else if (urb->status == -ENOENT) { 1374 /* Avoid suspend failed when usb_kill_urb */ 1375 return; 1376 } 1377 1378 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1379 return; 1380 1381 usb_mark_last_busy(data->udev); 1382 usb_anchor_urb(urb, &data->intr_anchor); 1383 1384 err = usb_submit_urb(urb, GFP_ATOMIC); 1385 if (err < 0) { 1386 /* -EPERM: urb is being killed; 1387 * -ENODEV: device got disconnected 1388 */ 1389 if (err != -EPERM && err != -ENODEV) 1390 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1391 urb, -err); 1392 if (err != -EPERM) 1393 hci_cmd_sync_cancel(hdev, -err); 1394 usb_unanchor_urb(urb); 1395 } 1396 } 1397 1398 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1399 { 1400 struct btusb_data *data = hci_get_drvdata(hdev); 1401 struct urb *urb; 1402 unsigned char *buf; 1403 unsigned int pipe; 1404 int err, size; 1405 1406 BT_DBG("%s", hdev->name); 1407 1408 if (!data->intr_ep) 1409 return -ENODEV; 1410 1411 urb = usb_alloc_urb(0, mem_flags); 1412 if (!urb) 1413 return -ENOMEM; 1414 1415 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1416 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1417 /* Fake CSR devices don't seem to support sort-transter */ 1418 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1419 else 1420 /* Use maximum HCI Event size so the USB stack handles 1421 * ZPL/short-transfer automatically. 1422 */ 1423 size = HCI_MAX_EVENT_SIZE; 1424 1425 buf = kmalloc(size, mem_flags); 1426 if (!buf) { 1427 usb_free_urb(urb); 1428 return -ENOMEM; 1429 } 1430 1431 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1432 1433 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1434 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1435 1436 urb->transfer_flags |= URB_FREE_BUFFER; 1437 1438 usb_anchor_urb(urb, &data->intr_anchor); 1439 1440 err = usb_submit_urb(urb, mem_flags); 1441 if (err < 0) { 1442 if (err != -EPERM && err != -ENODEV) 1443 bt_dev_err(hdev, "urb %p submission failed (%d)", 1444 urb, -err); 1445 if (err != -EPERM) 1446 hci_cmd_sync_cancel(hdev, -err); 1447 usb_unanchor_urb(urb); 1448 } 1449 1450 /* Only initialize intr_interval if URB poll sync is enabled */ 1451 if (!data->poll_sync) 1452 goto done; 1453 1454 /* The units are frames (milliseconds) for full and low speed devices, 1455 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1456 * devices. 1457 * 1458 * This is done once on open/resume so it shouldn't change even if 1459 * force_poll_sync changes. 1460 */ 1461 switch (urb->dev->speed) { 1462 case USB_SPEED_SUPER_PLUS: 1463 case USB_SPEED_SUPER: /* units are 125us */ 1464 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1465 break; 1466 default: 1467 data->intr_interval = msecs_to_jiffies(urb->interval); 1468 break; 1469 } 1470 1471 done: 1472 usb_free_urb(urb); 1473 1474 return err; 1475 } 1476 1477 static void btusb_bulk_complete(struct urb *urb) 1478 { 1479 struct hci_dev *hdev = urb->context; 1480 struct btusb_data *data = hci_get_drvdata(hdev); 1481 int err; 1482 1483 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1484 urb->actual_length); 1485 1486 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1487 return; 1488 1489 if (urb->status == 0) { 1490 hdev->stat.byte_rx += urb->actual_length; 1491 1492 if (data->recv_bulk(data, urb->transfer_buffer, 1493 urb->actual_length) < 0) { 1494 bt_dev_err(hdev, "corrupted ACL packet"); 1495 hdev->stat.err_rx++; 1496 } 1497 } else if (urb->status == -ENOENT) { 1498 /* Avoid suspend failed when usb_kill_urb */ 1499 return; 1500 } 1501 1502 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1503 return; 1504 1505 usb_anchor_urb(urb, &data->bulk_anchor); 1506 usb_mark_last_busy(data->udev); 1507 1508 err = usb_submit_urb(urb, GFP_ATOMIC); 1509 if (err < 0) { 1510 /* -EPERM: urb is being killed; 1511 * -ENODEV: device got disconnected 1512 */ 1513 if (err != -EPERM && err != -ENODEV) 1514 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1515 urb, -err); 1516 usb_unanchor_urb(urb); 1517 } 1518 } 1519 1520 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1521 { 1522 struct btusb_data *data = hci_get_drvdata(hdev); 1523 struct urb *urb; 1524 unsigned char *buf; 1525 unsigned int pipe; 1526 int err, size = HCI_MAX_FRAME_SIZE; 1527 1528 BT_DBG("%s", hdev->name); 1529 1530 if (!data->bulk_rx_ep) 1531 return -ENODEV; 1532 1533 urb = usb_alloc_urb(0, mem_flags); 1534 if (!urb) 1535 return -ENOMEM; 1536 1537 buf = kmalloc(size, mem_flags); 1538 if (!buf) { 1539 usb_free_urb(urb); 1540 return -ENOMEM; 1541 } 1542 1543 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1544 1545 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1546 btusb_bulk_complete, hdev); 1547 1548 urb->transfer_flags |= URB_FREE_BUFFER; 1549 1550 usb_mark_last_busy(data->udev); 1551 usb_anchor_urb(urb, &data->bulk_anchor); 1552 1553 err = usb_submit_urb(urb, mem_flags); 1554 if (err < 0) { 1555 if (err != -EPERM && err != -ENODEV) 1556 bt_dev_err(hdev, "urb %p submission failed (%d)", 1557 urb, -err); 1558 usb_unanchor_urb(urb); 1559 } 1560 1561 usb_free_urb(urb); 1562 1563 return err; 1564 } 1565 1566 static void btusb_isoc_complete(struct urb *urb) 1567 { 1568 struct hci_dev *hdev = urb->context; 1569 struct btusb_data *data = hci_get_drvdata(hdev); 1570 int i, err; 1571 1572 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1573 urb->actual_length); 1574 1575 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1576 return; 1577 1578 if (urb->status == 0) { 1579 for (i = 0; i < urb->number_of_packets; i++) { 1580 unsigned int offset = urb->iso_frame_desc[i].offset; 1581 unsigned int length = urb->iso_frame_desc[i].actual_length; 1582 1583 if (urb->iso_frame_desc[i].status) 1584 continue; 1585 1586 hdev->stat.byte_rx += length; 1587 1588 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1589 length) < 0) { 1590 bt_dev_err(hdev, "corrupted SCO packet"); 1591 hdev->stat.err_rx++; 1592 } 1593 } 1594 } else if (urb->status == -ENOENT) { 1595 /* Avoid suspend failed when usb_kill_urb */ 1596 return; 1597 } 1598 1599 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1600 return; 1601 1602 usb_anchor_urb(urb, &data->isoc_anchor); 1603 1604 err = usb_submit_urb(urb, GFP_ATOMIC); 1605 if (err < 0) { 1606 /* -EPERM: urb is being killed; 1607 * -ENODEV: device got disconnected 1608 */ 1609 if (err != -EPERM && err != -ENODEV) 1610 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1611 urb, -err); 1612 usb_unanchor_urb(urb); 1613 } 1614 } 1615 1616 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1617 int mtu, struct btusb_data *data) 1618 { 1619 int i = 0, offset = 0; 1620 unsigned int interval; 1621 1622 BT_DBG("len %d mtu %d", len, mtu); 1623 1624 /* For mSBC ALT 6 settings some chips need to transmit the data 1625 * continuously without the zero length of USB packets. 1626 */ 1627 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1628 goto ignore_usb_alt6_packet_flow; 1629 1630 /* For mSBC ALT 6 setting the host will send the packet at continuous 1631 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1632 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1633 * To maintain the rate we send 63bytes of usb packets alternatively for 1634 * 7ms and 8ms to maintain the rate as 7.5ms. 1635 */ 1636 if (data->usb_alt6_packet_flow) { 1637 interval = 7; 1638 data->usb_alt6_packet_flow = false; 1639 } else { 1640 interval = 6; 1641 data->usb_alt6_packet_flow = true; 1642 } 1643 1644 for (i = 0; i < interval; i++) { 1645 urb->iso_frame_desc[i].offset = offset; 1646 urb->iso_frame_desc[i].length = offset; 1647 } 1648 1649 ignore_usb_alt6_packet_flow: 1650 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1651 urb->iso_frame_desc[i].offset = offset; 1652 urb->iso_frame_desc[i].length = len; 1653 i++; 1654 } 1655 1656 urb->number_of_packets = i; 1657 } 1658 1659 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1660 { 1661 int i, offset = 0; 1662 1663 BT_DBG("len %d mtu %d", len, mtu); 1664 1665 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1666 i++, offset += mtu, len -= mtu) { 1667 urb->iso_frame_desc[i].offset = offset; 1668 urb->iso_frame_desc[i].length = mtu; 1669 } 1670 1671 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1672 urb->iso_frame_desc[i].offset = offset; 1673 urb->iso_frame_desc[i].length = len; 1674 i++; 1675 } 1676 1677 urb->number_of_packets = i; 1678 } 1679 1680 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1681 { 1682 struct btusb_data *data = hci_get_drvdata(hdev); 1683 struct urb *urb; 1684 unsigned char *buf; 1685 unsigned int pipe; 1686 int err, size; 1687 1688 BT_DBG("%s", hdev->name); 1689 1690 if (!data->isoc_rx_ep) 1691 return -ENODEV; 1692 1693 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1694 if (!urb) 1695 return -ENOMEM; 1696 1697 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1698 BTUSB_MAX_ISOC_FRAMES; 1699 1700 buf = kmalloc(size, mem_flags); 1701 if (!buf) { 1702 usb_free_urb(urb); 1703 return -ENOMEM; 1704 } 1705 1706 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1707 1708 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1709 hdev, data->isoc_rx_ep->bInterval); 1710 1711 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1712 1713 __fill_isoc_descriptor(urb, size, 1714 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1715 1716 usb_anchor_urb(urb, &data->isoc_anchor); 1717 1718 err = usb_submit_urb(urb, mem_flags); 1719 if (err < 0) { 1720 if (err != -EPERM && err != -ENODEV) 1721 bt_dev_err(hdev, "urb %p submission failed (%d)", 1722 urb, -err); 1723 usb_unanchor_urb(urb); 1724 } 1725 1726 usb_free_urb(urb); 1727 1728 return err; 1729 } 1730 1731 static void btusb_diag_complete(struct urb *urb) 1732 { 1733 struct hci_dev *hdev = urb->context; 1734 struct btusb_data *data = hci_get_drvdata(hdev); 1735 int err; 1736 1737 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1738 urb->actual_length); 1739 1740 if (urb->status == 0) { 1741 struct sk_buff *skb; 1742 1743 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1744 if (skb) { 1745 skb_put_data(skb, urb->transfer_buffer, 1746 urb->actual_length); 1747 hci_recv_diag(hdev, skb); 1748 } 1749 } else if (urb->status == -ENOENT) { 1750 /* Avoid suspend failed when usb_kill_urb */ 1751 return; 1752 } 1753 1754 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1755 return; 1756 1757 usb_anchor_urb(urb, &data->diag_anchor); 1758 usb_mark_last_busy(data->udev); 1759 1760 err = usb_submit_urb(urb, GFP_ATOMIC); 1761 if (err < 0) { 1762 /* -EPERM: urb is being killed; 1763 * -ENODEV: device got disconnected 1764 */ 1765 if (err != -EPERM && err != -ENODEV) 1766 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1767 urb, -err); 1768 usb_unanchor_urb(urb); 1769 } 1770 } 1771 1772 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1773 { 1774 struct btusb_data *data = hci_get_drvdata(hdev); 1775 struct urb *urb; 1776 unsigned char *buf; 1777 unsigned int pipe; 1778 int err, size = HCI_MAX_FRAME_SIZE; 1779 1780 BT_DBG("%s", hdev->name); 1781 1782 if (!data->diag_rx_ep) 1783 return -ENODEV; 1784 1785 urb = usb_alloc_urb(0, mem_flags); 1786 if (!urb) 1787 return -ENOMEM; 1788 1789 buf = kmalloc(size, mem_flags); 1790 if (!buf) { 1791 usb_free_urb(urb); 1792 return -ENOMEM; 1793 } 1794 1795 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1796 1797 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1798 btusb_diag_complete, hdev); 1799 1800 urb->transfer_flags |= URB_FREE_BUFFER; 1801 1802 usb_mark_last_busy(data->udev); 1803 usb_anchor_urb(urb, &data->diag_anchor); 1804 1805 err = usb_submit_urb(urb, mem_flags); 1806 if (err < 0) { 1807 if (err != -EPERM && err != -ENODEV) 1808 bt_dev_err(hdev, "urb %p submission failed (%d)", 1809 urb, -err); 1810 usb_unanchor_urb(urb); 1811 } 1812 1813 usb_free_urb(urb); 1814 1815 return err; 1816 } 1817 1818 static void btusb_tx_complete(struct urb *urb) 1819 { 1820 struct sk_buff *skb = urb->context; 1821 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1822 struct btusb_data *data = hci_get_drvdata(hdev); 1823 unsigned long flags; 1824 1825 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1826 urb->actual_length); 1827 1828 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1829 goto done; 1830 1831 if (!urb->status) { 1832 hdev->stat.byte_tx += urb->transfer_buffer_length; 1833 } else { 1834 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1835 hci_cmd_sync_cancel(hdev, -urb->status); 1836 hdev->stat.err_tx++; 1837 } 1838 1839 done: 1840 spin_lock_irqsave(&data->txlock, flags); 1841 data->tx_in_flight--; 1842 spin_unlock_irqrestore(&data->txlock, flags); 1843 1844 kfree(urb->setup_packet); 1845 1846 kfree_skb(skb); 1847 } 1848 1849 static void btusb_isoc_tx_complete(struct urb *urb) 1850 { 1851 struct sk_buff *skb = urb->context; 1852 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1853 1854 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1855 urb->actual_length); 1856 1857 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1858 goto done; 1859 1860 if (!urb->status) 1861 hdev->stat.byte_tx += urb->transfer_buffer_length; 1862 else 1863 hdev->stat.err_tx++; 1864 1865 done: 1866 kfree(urb->setup_packet); 1867 1868 kfree_skb(skb); 1869 } 1870 1871 static int btusb_open(struct hci_dev *hdev) 1872 { 1873 struct btusb_data *data = hci_get_drvdata(hdev); 1874 int err; 1875 1876 BT_DBG("%s", hdev->name); 1877 1878 err = usb_autopm_get_interface(data->intf); 1879 if (err < 0) 1880 return err; 1881 1882 /* Patching USB firmware files prior to starting any URBs of HCI path 1883 * It is more safe to use USB bulk channel for downloading USB patch 1884 */ 1885 if (data->setup_on_usb) { 1886 err = data->setup_on_usb(hdev); 1887 if (err < 0) 1888 goto setup_fail; 1889 } 1890 1891 data->intf->needs_remote_wakeup = 1; 1892 1893 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1894 goto done; 1895 1896 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1897 if (err < 0) 1898 goto failed; 1899 1900 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1901 if (err < 0) { 1902 usb_kill_anchored_urbs(&data->intr_anchor); 1903 goto failed; 1904 } 1905 1906 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1907 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1908 1909 if (data->diag) { 1910 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1911 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1912 } 1913 1914 done: 1915 usb_autopm_put_interface(data->intf); 1916 return 0; 1917 1918 failed: 1919 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1920 setup_fail: 1921 usb_autopm_put_interface(data->intf); 1922 return err; 1923 } 1924 1925 static void btusb_stop_traffic(struct btusb_data *data) 1926 { 1927 usb_kill_anchored_urbs(&data->intr_anchor); 1928 usb_kill_anchored_urbs(&data->bulk_anchor); 1929 usb_kill_anchored_urbs(&data->isoc_anchor); 1930 usb_kill_anchored_urbs(&data->diag_anchor); 1931 usb_kill_anchored_urbs(&data->ctrl_anchor); 1932 } 1933 1934 static int btusb_close(struct hci_dev *hdev) 1935 { 1936 struct btusb_data *data = hci_get_drvdata(hdev); 1937 int err; 1938 1939 BT_DBG("%s", hdev->name); 1940 1941 cancel_delayed_work(&data->rx_work); 1942 cancel_work_sync(&data->work); 1943 cancel_work_sync(&data->waker); 1944 1945 skb_queue_purge(&data->acl_q); 1946 1947 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1948 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1949 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1950 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1951 1952 btusb_stop_traffic(data); 1953 btusb_free_frags(data); 1954 1955 err = usb_autopm_get_interface(data->intf); 1956 if (err < 0) 1957 goto failed; 1958 1959 data->intf->needs_remote_wakeup = 0; 1960 1961 /* Enable remote wake up for auto-suspend */ 1962 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1963 data->intf->needs_remote_wakeup = 1; 1964 1965 usb_autopm_put_interface(data->intf); 1966 1967 failed: 1968 usb_scuttle_anchored_urbs(&data->deferred); 1969 return 0; 1970 } 1971 1972 static int btusb_flush(struct hci_dev *hdev) 1973 { 1974 struct btusb_data *data = hci_get_drvdata(hdev); 1975 1976 BT_DBG("%s", hdev->name); 1977 1978 cancel_delayed_work(&data->rx_work); 1979 1980 skb_queue_purge(&data->acl_q); 1981 1982 usb_kill_anchored_urbs(&data->tx_anchor); 1983 btusb_free_frags(data); 1984 1985 return 0; 1986 } 1987 1988 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1989 { 1990 struct btusb_data *data = hci_get_drvdata(hdev); 1991 struct usb_ctrlrequest *dr; 1992 struct urb *urb; 1993 unsigned int pipe; 1994 1995 urb = usb_alloc_urb(0, GFP_KERNEL); 1996 if (!urb) 1997 return ERR_PTR(-ENOMEM); 1998 1999 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2000 if (!dr) { 2001 usb_free_urb(urb); 2002 return ERR_PTR(-ENOMEM); 2003 } 2004 2005 dr->bRequestType = data->cmdreq_type; 2006 dr->bRequest = data->cmdreq; 2007 dr->wIndex = 0; 2008 dr->wValue = 0; 2009 dr->wLength = __cpu_to_le16(skb->len); 2010 2011 pipe = usb_sndctrlpipe(data->udev, 0x00); 2012 2013 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2014 skb->data, skb->len, btusb_tx_complete, skb); 2015 2016 skb->dev = (void *)hdev; 2017 2018 return urb; 2019 } 2020 2021 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2022 { 2023 struct btusb_data *data = hci_get_drvdata(hdev); 2024 struct urb *urb; 2025 unsigned int pipe; 2026 2027 if (!data->bulk_tx_ep) 2028 return ERR_PTR(-ENODEV); 2029 2030 urb = usb_alloc_urb(0, GFP_KERNEL); 2031 if (!urb) 2032 return ERR_PTR(-ENOMEM); 2033 2034 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2035 2036 usb_fill_bulk_urb(urb, data->udev, pipe, 2037 skb->data, skb->len, btusb_tx_complete, skb); 2038 2039 skb->dev = (void *)hdev; 2040 2041 return urb; 2042 } 2043 2044 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2045 { 2046 struct btusb_data *data = hci_get_drvdata(hdev); 2047 struct urb *urb; 2048 unsigned int pipe; 2049 2050 if (!data->isoc_tx_ep) 2051 return ERR_PTR(-ENODEV); 2052 2053 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2054 if (!urb) 2055 return ERR_PTR(-ENOMEM); 2056 2057 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2058 2059 usb_fill_int_urb(urb, data->udev, pipe, 2060 skb->data, skb->len, btusb_isoc_tx_complete, 2061 skb, data->isoc_tx_ep->bInterval); 2062 2063 urb->transfer_flags = URB_ISO_ASAP; 2064 2065 if (data->isoc_altsetting == 6) 2066 __fill_isoc_descriptor_msbc(urb, skb->len, 2067 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2068 data); 2069 else 2070 __fill_isoc_descriptor(urb, skb->len, 2071 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2072 skb->dev = (void *)hdev; 2073 2074 return urb; 2075 } 2076 2077 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2078 { 2079 struct btusb_data *data = hci_get_drvdata(hdev); 2080 int err; 2081 2082 usb_anchor_urb(urb, &data->tx_anchor); 2083 2084 err = usb_submit_urb(urb, GFP_KERNEL); 2085 if (err < 0) { 2086 if (err != -EPERM && err != -ENODEV) 2087 bt_dev_err(hdev, "urb %p submission failed (%d)", 2088 urb, -err); 2089 kfree(urb->setup_packet); 2090 usb_unanchor_urb(urb); 2091 } else { 2092 usb_mark_last_busy(data->udev); 2093 } 2094 2095 usb_free_urb(urb); 2096 return err; 2097 } 2098 2099 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2100 { 2101 struct btusb_data *data = hci_get_drvdata(hdev); 2102 unsigned long flags; 2103 bool suspending; 2104 2105 spin_lock_irqsave(&data->txlock, flags); 2106 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2107 if (!suspending) 2108 data->tx_in_flight++; 2109 spin_unlock_irqrestore(&data->txlock, flags); 2110 2111 if (!suspending) 2112 return submit_tx_urb(hdev, urb); 2113 2114 usb_anchor_urb(urb, &data->deferred); 2115 schedule_work(&data->waker); 2116 2117 usb_free_urb(urb); 2118 return 0; 2119 } 2120 2121 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2122 { 2123 struct urb *urb; 2124 2125 BT_DBG("%s", hdev->name); 2126 2127 switch (hci_skb_pkt_type(skb)) { 2128 case HCI_COMMAND_PKT: 2129 urb = alloc_ctrl_urb(hdev, skb); 2130 if (IS_ERR(urb)) 2131 return PTR_ERR(urb); 2132 2133 hdev->stat.cmd_tx++; 2134 return submit_or_queue_tx_urb(hdev, urb); 2135 2136 case HCI_ACLDATA_PKT: 2137 urb = alloc_bulk_urb(hdev, skb); 2138 if (IS_ERR(urb)) 2139 return PTR_ERR(urb); 2140 2141 hdev->stat.acl_tx++; 2142 return submit_or_queue_tx_urb(hdev, urb); 2143 2144 case HCI_SCODATA_PKT: 2145 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2146 hci_conn_num(hdev, SCO_LINK) < 1) 2147 return -ENODEV; 2148 2149 urb = alloc_isoc_urb(hdev, skb); 2150 if (IS_ERR(urb)) 2151 return PTR_ERR(urb); 2152 2153 hdev->stat.sco_tx++; 2154 return submit_tx_urb(hdev, urb); 2155 2156 case HCI_ISODATA_PKT: 2157 urb = alloc_bulk_urb(hdev, skb); 2158 if (IS_ERR(urb)) 2159 return PTR_ERR(urb); 2160 2161 return submit_or_queue_tx_urb(hdev, urb); 2162 } 2163 2164 return -EILSEQ; 2165 } 2166 2167 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2168 { 2169 struct btusb_data *data = hci_get_drvdata(hdev); 2170 2171 BT_DBG("%s evt %d", hdev->name, evt); 2172 2173 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2174 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2175 data->air_mode = evt; 2176 schedule_work(&data->work); 2177 } 2178 } 2179 2180 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2181 { 2182 struct btusb_data *data = hci_get_drvdata(hdev); 2183 struct usb_interface *intf = data->isoc; 2184 struct usb_endpoint_descriptor *ep_desc; 2185 int i, err; 2186 2187 if (!data->isoc) 2188 return -ENODEV; 2189 2190 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2191 if (err < 0) { 2192 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2193 return err; 2194 } 2195 2196 data->isoc_altsetting = altsetting; 2197 2198 data->isoc_tx_ep = NULL; 2199 data->isoc_rx_ep = NULL; 2200 2201 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2202 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2203 2204 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2205 data->isoc_tx_ep = ep_desc; 2206 continue; 2207 } 2208 2209 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2210 data->isoc_rx_ep = ep_desc; 2211 continue; 2212 } 2213 } 2214 2215 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2216 bt_dev_err(hdev, "invalid SCO descriptors"); 2217 return -ENODEV; 2218 } 2219 2220 return 0; 2221 } 2222 2223 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2224 { 2225 struct btusb_data *data = hci_get_drvdata(hdev); 2226 int err; 2227 2228 if (data->isoc_altsetting != new_alts) { 2229 unsigned long flags; 2230 2231 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2232 usb_kill_anchored_urbs(&data->isoc_anchor); 2233 2234 /* When isochronous alternate setting needs to be 2235 * changed, because SCO connection has been added 2236 * or removed, a packet fragment may be left in the 2237 * reassembling state. This could lead to wrongly 2238 * assembled fragments. 2239 * 2240 * Clear outstanding fragment when selecting a new 2241 * alternate setting. 2242 */ 2243 spin_lock_irqsave(&data->rxlock, flags); 2244 dev_kfree_skb_irq(data->sco_skb); 2245 data->sco_skb = NULL; 2246 spin_unlock_irqrestore(&data->rxlock, flags); 2247 2248 err = __set_isoc_interface(hdev, new_alts); 2249 if (err < 0) 2250 return err; 2251 } 2252 2253 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2254 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2255 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2256 else 2257 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2258 } 2259 2260 return 0; 2261 } 2262 2263 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2264 int alt) 2265 { 2266 struct usb_interface *intf = data->isoc; 2267 int i; 2268 2269 BT_DBG("Looking for Alt no :%d", alt); 2270 2271 if (!intf) 2272 return NULL; 2273 2274 for (i = 0; i < intf->num_altsetting; i++) { 2275 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2276 return &intf->altsetting[i]; 2277 } 2278 2279 return NULL; 2280 } 2281 2282 static void btusb_work(struct work_struct *work) 2283 { 2284 struct btusb_data *data = container_of(work, struct btusb_data, work); 2285 struct hci_dev *hdev = data->hdev; 2286 int new_alts = 0; 2287 int err; 2288 2289 if (data->sco_num > 0) { 2290 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2291 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2292 if (err < 0) { 2293 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2294 usb_kill_anchored_urbs(&data->isoc_anchor); 2295 return; 2296 } 2297 2298 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2299 } 2300 2301 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2302 if (hdev->voice_setting & 0x0020) { 2303 static const int alts[3] = { 2, 4, 5 }; 2304 2305 new_alts = alts[data->sco_num - 1]; 2306 } else { 2307 new_alts = data->sco_num; 2308 } 2309 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2310 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2311 * many adapters do not support it. Alt 1 appears to 2312 * work for all adapters that do not have alt 6, and 2313 * which work with WBS at all. Some devices prefer 2314 * alt 3 (HCI payload >= 60 Bytes let air packet 2315 * data satisfy 60 bytes), requiring 2316 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2317 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2318 */ 2319 if (btusb_find_altsetting(data, 6)) 2320 new_alts = 6; 2321 else if (btusb_find_altsetting(data, 3) && 2322 hdev->sco_mtu >= 72 && 2323 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2324 new_alts = 3; 2325 else 2326 new_alts = 1; 2327 } 2328 2329 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2330 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2331 } else { 2332 usb_kill_anchored_urbs(&data->isoc_anchor); 2333 2334 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2335 __set_isoc_interface(hdev, 0); 2336 2337 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2338 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2339 } 2340 } 2341 2342 static void btusb_waker(struct work_struct *work) 2343 { 2344 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2345 int err; 2346 2347 err = usb_autopm_get_interface(data->intf); 2348 if (err < 0) 2349 return; 2350 2351 usb_autopm_put_interface(data->intf); 2352 } 2353 2354 static void btusb_rx_work(struct work_struct *work) 2355 { 2356 struct btusb_data *data = container_of(work, struct btusb_data, 2357 rx_work.work); 2358 struct sk_buff *skb; 2359 2360 /* Dequeue ACL data received during the interval */ 2361 while ((skb = skb_dequeue(&data->acl_q))) 2362 data->recv_acl(data->hdev, skb); 2363 } 2364 2365 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2366 { 2367 struct sk_buff *skb; 2368 u8 val = 0x00; 2369 2370 BT_DBG("%s", hdev->name); 2371 2372 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2373 if (IS_ERR(skb)) 2374 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2375 else 2376 kfree_skb(skb); 2377 2378 return 0; 2379 } 2380 2381 static int btusb_setup_csr(struct hci_dev *hdev) 2382 { 2383 struct btusb_data *data = hci_get_drvdata(hdev); 2384 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2385 struct hci_rp_read_local_version *rp; 2386 struct sk_buff *skb; 2387 bool is_fake = false; 2388 int ret; 2389 2390 BT_DBG("%s", hdev->name); 2391 2392 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2393 HCI_INIT_TIMEOUT); 2394 if (IS_ERR(skb)) { 2395 int err = PTR_ERR(skb); 2396 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2397 return err; 2398 } 2399 2400 rp = skb_pull_data(skb, sizeof(*rp)); 2401 if (!rp) { 2402 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2403 kfree_skb(skb); 2404 return -EIO; 2405 } 2406 2407 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2408 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2409 2410 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2411 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2412 le16_to_cpu(rp->manufacturer)); 2413 2414 /* Detect a wide host of Chinese controllers that aren't CSR. 2415 * 2416 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2417 * 2418 * The main thing they have in common is that these are really popular low-cost 2419 * options that support newer Bluetooth versions but rely on heavy VID/PID 2420 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2421 * 2422 * We detect actual CSR devices by checking that the HCI manufacturer code 2423 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2424 * HCI rev values always match. As they both store the firmware number. 2425 */ 2426 if (le16_to_cpu(rp->manufacturer) != 10 || 2427 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2428 is_fake = true; 2429 2430 /* Known legit CSR firmware build numbers and their supported BT versions: 2431 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2432 * - 1.2 (0x2) -> 0x04d9, 0x0529 2433 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2434 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2435 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2436 * 2437 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2438 * support BT 1.1 only; so it's a dead giveaway when some 2439 * third-party BT 4.0 dongle reuses it. 2440 */ 2441 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2442 rp->hci_ver > BLUETOOTH_VER_1_1) 2443 is_fake = true; 2444 2445 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2446 rp->hci_ver > BLUETOOTH_VER_1_2) 2447 is_fake = true; 2448 2449 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2450 rp->hci_ver > BLUETOOTH_VER_2_0) 2451 is_fake = true; 2452 2453 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2454 rp->hci_ver > BLUETOOTH_VER_2_1) 2455 is_fake = true; 2456 2457 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2458 rp->hci_ver > BLUETOOTH_VER_4_0) 2459 is_fake = true; 2460 2461 /* Other clones which beat all the above checks */ 2462 else if (bcdDevice == 0x0134 && 2463 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2464 rp->hci_ver == BLUETOOTH_VER_2_0) 2465 is_fake = true; 2466 2467 if (is_fake) { 2468 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2469 2470 /* Generally these clones have big discrepancies between 2471 * advertised features and what's actually supported. 2472 * Probably will need to be expanded in the future; 2473 * without these the controller will lock up. 2474 */ 2475 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2476 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2477 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2478 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2479 set_bit(HCI_QUIRK_BROKEN_READ_VOICE_SETTING, &hdev->quirks); 2480 set_bit(HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE, &hdev->quirks); 2481 2482 /* Clear the reset quirk since this is not an actual 2483 * early Bluetooth 1.1 device from CSR. 2484 */ 2485 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2486 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2487 2488 /* 2489 * Special workaround for these BT 4.0 chip clones, and potentially more: 2490 * 2491 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2492 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2493 * 2494 * These controllers are really messed-up. 2495 * 2496 * 1. Their bulk RX endpoint will never report any data unless 2497 * the device was suspended at least once (yes, really). 2498 * 2. They will not wakeup when autosuspended and receiving data 2499 * on their bulk RX endpoint from e.g. a keyboard or mouse 2500 * (IOW remote-wakeup support is broken for the bulk endpoint). 2501 * 2502 * To fix 1. enable runtime-suspend, force-suspend the 2503 * HCI and then wake-it up by disabling runtime-suspend. 2504 * 2505 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2506 * will still be autosuspended when it is not open. 2507 * 2508 * -- 2509 * 2510 * Because these are widespread problems we prefer generic solutions; so 2511 * apply this initialization quirk to every controller that gets here, 2512 * it should be harmless. The alternative is to not work at all. 2513 */ 2514 pm_runtime_allow(&data->udev->dev); 2515 2516 ret = pm_runtime_suspend(&data->udev->dev); 2517 if (ret >= 0) 2518 msleep(200); 2519 else 2520 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2521 2522 pm_runtime_forbid(&data->udev->dev); 2523 2524 device_set_wakeup_capable(&data->udev->dev, false); 2525 2526 /* Re-enable autosuspend if this was requested */ 2527 if (enable_autosuspend) 2528 usb_enable_autosuspend(data->udev); 2529 } 2530 2531 kfree_skb(skb); 2532 2533 return 0; 2534 } 2535 2536 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2537 { 2538 struct sk_buff *skb; 2539 struct hci_event_hdr *hdr; 2540 struct hci_ev_cmd_complete *evt; 2541 2542 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2543 if (!skb) 2544 return -ENOMEM; 2545 2546 hdr = skb_put(skb, sizeof(*hdr)); 2547 hdr->evt = HCI_EV_CMD_COMPLETE; 2548 hdr->plen = sizeof(*evt) + 1; 2549 2550 evt = skb_put(skb, sizeof(*evt)); 2551 evt->ncmd = 0x01; 2552 evt->opcode = cpu_to_le16(opcode); 2553 2554 skb_put_u8(skb, 0x00); 2555 2556 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2557 2558 return hci_recv_frame(hdev, skb); 2559 } 2560 2561 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2562 int count) 2563 { 2564 struct hci_dev *hdev = data->hdev; 2565 2566 /* When the device is in bootloader mode, then it can send 2567 * events via the bulk endpoint. These events are treated the 2568 * same way as the ones received from the interrupt endpoint. 2569 */ 2570 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2571 return btusb_recv_intr(data, buffer, count); 2572 2573 return btusb_recv_bulk(data, buffer, count); 2574 } 2575 2576 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2577 { 2578 struct urb *urb; 2579 2580 BT_DBG("%s", hdev->name); 2581 2582 switch (hci_skb_pkt_type(skb)) { 2583 case HCI_COMMAND_PKT: 2584 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2585 struct hci_command_hdr *cmd = (void *)skb->data; 2586 __u16 opcode = le16_to_cpu(cmd->opcode); 2587 2588 /* When in bootloader mode and the command 0xfc09 2589 * is received, it needs to be send down the 2590 * bulk endpoint. So allocate a bulk URB instead. 2591 */ 2592 if (opcode == 0xfc09) 2593 urb = alloc_bulk_urb(hdev, skb); 2594 else 2595 urb = alloc_ctrl_urb(hdev, skb); 2596 2597 /* When the 0xfc01 command is issued to boot into 2598 * the operational firmware, it will actually not 2599 * send a command complete event. To keep the flow 2600 * control working inject that event here. 2601 */ 2602 if (opcode == 0xfc01) 2603 inject_cmd_complete(hdev, opcode); 2604 } else { 2605 urb = alloc_ctrl_urb(hdev, skb); 2606 } 2607 if (IS_ERR(urb)) 2608 return PTR_ERR(urb); 2609 2610 hdev->stat.cmd_tx++; 2611 return submit_or_queue_tx_urb(hdev, urb); 2612 2613 case HCI_ACLDATA_PKT: 2614 urb = alloc_bulk_urb(hdev, skb); 2615 if (IS_ERR(urb)) 2616 return PTR_ERR(urb); 2617 2618 hdev->stat.acl_tx++; 2619 return submit_or_queue_tx_urb(hdev, urb); 2620 2621 case HCI_SCODATA_PKT: 2622 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2623 hci_conn_num(hdev, SCO_LINK) < 1) 2624 return -ENODEV; 2625 2626 urb = alloc_isoc_urb(hdev, skb); 2627 if (IS_ERR(urb)) 2628 return PTR_ERR(urb); 2629 2630 hdev->stat.sco_tx++; 2631 return submit_tx_urb(hdev, urb); 2632 2633 case HCI_ISODATA_PKT: 2634 urb = alloc_bulk_urb(hdev, skb); 2635 if (IS_ERR(urb)) 2636 return PTR_ERR(urb); 2637 2638 return submit_or_queue_tx_urb(hdev, urb); 2639 } 2640 2641 return -EILSEQ; 2642 } 2643 2644 static int btusb_setup_realtek(struct hci_dev *hdev) 2645 { 2646 struct btusb_data *data = hci_get_drvdata(hdev); 2647 int ret; 2648 2649 ret = btrtl_setup_realtek(hdev); 2650 2651 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2652 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2653 2654 return ret; 2655 } 2656 2657 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2658 { 2659 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2660 struct rtk_dev_coredump_hdr hdr = { 2661 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2662 }; 2663 2664 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2665 skb->len); 2666 2667 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2668 kfree_skb(skb); 2669 2670 return 0; 2671 } 2672 2673 return hci_recv_frame(hdev, skb); 2674 } 2675 2676 static void btusb_mtk_claim_iso_intf(struct btusb_data *data) 2677 { 2678 struct btmtk_data *btmtk_data = hci_get_priv(data->hdev); 2679 int err; 2680 2681 /* 2682 * The function usb_driver_claim_interface() is documented to need 2683 * locks held if it's not called from a probe routine. The code here 2684 * is called from the hci_power_on workqueue, so grab the lock. 2685 */ 2686 device_lock(&btmtk_data->isopkt_intf->dev); 2687 err = usb_driver_claim_interface(&btusb_driver, 2688 btmtk_data->isopkt_intf, data); 2689 device_unlock(&btmtk_data->isopkt_intf->dev); 2690 if (err < 0) { 2691 btmtk_data->isopkt_intf = NULL; 2692 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err); 2693 return; 2694 } 2695 2696 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2697 init_usb_anchor(&btmtk_data->isopkt_anchor); 2698 } 2699 2700 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev) 2701 { 2702 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2703 2704 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2705 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); 2706 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); 2707 2708 dev_kfree_skb_irq(btmtk_data->isopkt_skb); 2709 btmtk_data->isopkt_skb = NULL; 2710 usb_set_intfdata(btmtk_data->isopkt_intf, NULL); 2711 usb_driver_release_interface(&btusb_driver, 2712 btmtk_data->isopkt_intf); 2713 } 2714 2715 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2716 } 2717 2718 static int btusb_mtk_disconnect(struct hci_dev *hdev) 2719 { 2720 /* This function describes the specific additional steps taken by MediaTek 2721 * when Bluetooth usb driver's resume function is called. 2722 */ 2723 btusb_mtk_release_iso_intf(hdev); 2724 2725 return 0; 2726 } 2727 2728 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2729 { 2730 struct btusb_data *data = hci_get_drvdata(hdev); 2731 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2732 int err; 2733 2734 /* It's MediaTek specific bluetooth reset mechanism via USB */ 2735 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) { 2736 bt_dev_err(hdev, "last reset failed? Not resetting again"); 2737 return -EBUSY; 2738 } 2739 2740 err = usb_autopm_get_interface(data->intf); 2741 if (err < 0) 2742 return err; 2743 2744 /* Release MediaTek ISO data interface */ 2745 btusb_mtk_release_iso_intf(hdev); 2746 2747 btusb_stop_traffic(data); 2748 usb_kill_anchored_urbs(&data->tx_anchor); 2749 2750 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); 2751 2752 usb_queue_reset_device(data->intf); 2753 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 2754 2755 return err; 2756 } 2757 2758 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb) 2759 { 2760 struct urb *urb; 2761 2762 BT_DBG("%s", hdev->name); 2763 2764 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) { 2765 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); 2766 if (IS_ERR(urb)) 2767 return PTR_ERR(urb); 2768 2769 return submit_or_queue_tx_urb(hdev, urb); 2770 } else { 2771 return btusb_send_frame(hdev, skb); 2772 } 2773 } 2774 2775 static int btusb_mtk_setup(struct hci_dev *hdev) 2776 { 2777 struct btusb_data *data = hci_get_drvdata(hdev); 2778 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2779 2780 /* MediaTek WMT vendor cmd requiring below USB resources to 2781 * complete the handshake. 2782 */ 2783 btmtk_data->drv_name = btusb_driver.name; 2784 btmtk_data->intf = data->intf; 2785 btmtk_data->udev = data->udev; 2786 btmtk_data->ctrl_anchor = &data->ctrl_anchor; 2787 btmtk_data->reset_sync = btusb_mtk_reset; 2788 2789 /* Claim ISO data interface and endpoint */ 2790 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2791 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); 2792 btusb_mtk_claim_iso_intf(data); 2793 } 2794 2795 return btmtk_usb_setup(hdev); 2796 } 2797 2798 static int btusb_mtk_shutdown(struct hci_dev *hdev) 2799 { 2800 int ret; 2801 2802 ret = btmtk_usb_shutdown(hdev); 2803 2804 /* Release MediaTek iso interface after shutdown */ 2805 btusb_mtk_release_iso_intf(hdev); 2806 2807 return ret; 2808 } 2809 2810 #ifdef CONFIG_PM 2811 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2812 static int marvell_config_oob_wake(struct hci_dev *hdev) 2813 { 2814 struct sk_buff *skb; 2815 struct btusb_data *data = hci_get_drvdata(hdev); 2816 struct device *dev = &data->udev->dev; 2817 u16 pin, gap, opcode; 2818 int ret; 2819 u8 cmd[5]; 2820 2821 /* Move on if no wakeup pin specified */ 2822 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2823 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2824 return 0; 2825 2826 /* Vendor specific command to configure a GPIO as wake-up pin */ 2827 opcode = hci_opcode_pack(0x3F, 0x59); 2828 cmd[0] = opcode & 0xFF; 2829 cmd[1] = opcode >> 8; 2830 cmd[2] = 2; /* length of parameters that follow */ 2831 cmd[3] = pin; 2832 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2833 2834 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2835 if (!skb) { 2836 bt_dev_err(hdev, "%s: No memory", __func__); 2837 return -ENOMEM; 2838 } 2839 2840 skb_put_data(skb, cmd, sizeof(cmd)); 2841 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2842 2843 ret = btusb_send_frame(hdev, skb); 2844 if (ret) { 2845 bt_dev_err(hdev, "%s: configuration failed", __func__); 2846 kfree_skb(skb); 2847 return ret; 2848 } 2849 2850 return 0; 2851 } 2852 #endif 2853 2854 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2855 const bdaddr_t *bdaddr) 2856 { 2857 struct sk_buff *skb; 2858 u8 buf[8]; 2859 long ret; 2860 2861 buf[0] = 0xfe; 2862 buf[1] = sizeof(bdaddr_t); 2863 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2864 2865 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2866 if (IS_ERR(skb)) { 2867 ret = PTR_ERR(skb); 2868 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2869 ret); 2870 return ret; 2871 } 2872 kfree_skb(skb); 2873 2874 return 0; 2875 } 2876 2877 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2878 const bdaddr_t *bdaddr) 2879 { 2880 struct sk_buff *skb; 2881 u8 buf[10]; 2882 long ret; 2883 2884 buf[0] = 0x01; 2885 buf[1] = 0x01; 2886 buf[2] = 0x00; 2887 buf[3] = sizeof(bdaddr_t); 2888 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2889 2890 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2891 if (IS_ERR(skb)) { 2892 ret = PTR_ERR(skb); 2893 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2894 return ret; 2895 } 2896 kfree_skb(skb); 2897 2898 return 0; 2899 } 2900 2901 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 2902 const bdaddr_t *bdaddr) 2903 { 2904 struct sk_buff *skb; 2905 u8 buf[6]; 2906 long ret; 2907 2908 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 2909 2910 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 2911 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 2912 if (IS_ERR(skb)) { 2913 ret = PTR_ERR(skb); 2914 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2915 return ret; 2916 } 2917 kfree_skb(skb); 2918 2919 return 0; 2920 } 2921 2922 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 2923 #define QCA_MEMDUMP_SIZE_MAX 0x100000 2924 #define QCA_MEMDUMP_VSE_CLASS 0x01 2925 #define QCA_MEMDUMP_MSG_TYPE 0x08 2926 #define QCA_MEMDUMP_PKT_SIZE 248 2927 #define QCA_LAST_SEQUENCE_NUM 0xffff 2928 2929 struct qca_dump_hdr { 2930 u8 vse_class; 2931 u8 msg_type; 2932 __le16 seqno; 2933 u8 reserved; 2934 union { 2935 u8 data[0]; 2936 struct { 2937 __le32 ram_dump_size; 2938 u8 data0[0]; 2939 } __packed; 2940 }; 2941 } __packed; 2942 2943 2944 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 2945 { 2946 char buf[128]; 2947 struct btusb_data *btdata = hci_get_drvdata(hdev); 2948 2949 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 2950 btdata->qca_dump.controller_id); 2951 skb_put_data(skb, buf, strlen(buf)); 2952 2953 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 2954 btdata->qca_dump.fw_version); 2955 skb_put_data(skb, buf, strlen(buf)); 2956 2957 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 2958 btusb_driver.name); 2959 skb_put_data(skb, buf, strlen(buf)); 2960 2961 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 2962 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 2963 skb_put_data(skb, buf, strlen(buf)); 2964 2965 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 2966 hdev->lmp_subver); 2967 skb_put_data(skb, buf, strlen(buf)); 2968 } 2969 2970 static void btusb_coredump_qca(struct hci_dev *hdev) 2971 { 2972 int err; 2973 static const u8 param[] = { 0x26 }; 2974 2975 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 2976 if (err < 0) 2977 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 2978 } 2979 2980 /* Return: 0 on success, negative errno on failure. */ 2981 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 2982 { 2983 int ret = 0; 2984 unsigned int skip = 0; 2985 u8 pkt_type; 2986 u16 seqno; 2987 u32 dump_size; 2988 2989 struct qca_dump_hdr *dump_hdr; 2990 struct btusb_data *btdata = hci_get_drvdata(hdev); 2991 struct usb_device *udev = btdata->udev; 2992 2993 pkt_type = hci_skb_pkt_type(skb); 2994 skip = sizeof(struct hci_event_hdr); 2995 if (pkt_type == HCI_ACLDATA_PKT) 2996 skip += sizeof(struct hci_acl_hdr); 2997 2998 skb_pull(skb, skip); 2999 dump_hdr = (struct qca_dump_hdr *)skb->data; 3000 3001 seqno = le16_to_cpu(dump_hdr->seqno); 3002 if (seqno == 0) { 3003 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3004 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3005 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3006 ret = -EILSEQ; 3007 bt_dev_err(hdev, "Invalid memdump size(%u)", 3008 dump_size); 3009 goto out; 3010 } 3011 3012 ret = hci_devcd_init(hdev, dump_size); 3013 if (ret < 0) { 3014 bt_dev_err(hdev, "memdump init error(%d)", ret); 3015 goto out; 3016 } 3017 3018 btdata->qca_dump.ram_dump_size = dump_size; 3019 btdata->qca_dump.ram_dump_seqno = 0; 3020 3021 skb_pull(skb, offsetof(struct qca_dump_hdr, data0)); 3022 3023 usb_disable_autosuspend(udev); 3024 bt_dev_info(hdev, "%s memdump size(%u)\n", 3025 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3026 dump_size); 3027 } else { 3028 skb_pull(skb, offsetof(struct qca_dump_hdr, data)); 3029 } 3030 3031 if (!btdata->qca_dump.ram_dump_size) { 3032 ret = -EINVAL; 3033 bt_dev_err(hdev, "memdump is not active"); 3034 goto out; 3035 } 3036 3037 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3038 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3039 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3040 bt_dev_err(hdev, 3041 "expected memdump seqno(%u) is not received(%u)\n", 3042 btdata->qca_dump.ram_dump_seqno, seqno); 3043 btdata->qca_dump.ram_dump_seqno = seqno; 3044 kfree_skb(skb); 3045 return ret; 3046 } 3047 3048 hci_devcd_append(hdev, skb); 3049 btdata->qca_dump.ram_dump_seqno++; 3050 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3051 bt_dev_info(hdev, 3052 "memdump done: pkts(%u), total(%u)\n", 3053 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3054 3055 hci_devcd_complete(hdev); 3056 goto out; 3057 } 3058 return ret; 3059 3060 out: 3061 if (btdata->qca_dump.ram_dump_size) 3062 usb_enable_autosuspend(udev); 3063 btdata->qca_dump.ram_dump_size = 0; 3064 btdata->qca_dump.ram_dump_seqno = 0; 3065 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3066 3067 if (ret < 0) 3068 kfree_skb(skb); 3069 return ret; 3070 } 3071 3072 /* Return: true if the ACL packet is a dump packet, false otherwise. */ 3073 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3074 { 3075 struct hci_event_hdr *event_hdr; 3076 struct hci_acl_hdr *acl_hdr; 3077 struct qca_dump_hdr *dump_hdr; 3078 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3079 bool is_dump = false; 3080 3081 if (!clone) 3082 return false; 3083 3084 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr)); 3085 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)) 3086 goto out; 3087 3088 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3089 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT)) 3090 goto out; 3091 3092 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3093 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3094 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3095 goto out; 3096 3097 is_dump = true; 3098 out: 3099 consume_skb(clone); 3100 return is_dump; 3101 } 3102 3103 /* Return: true if the event packet is a dump packet, false otherwise. */ 3104 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3105 { 3106 struct hci_event_hdr *event_hdr; 3107 struct qca_dump_hdr *dump_hdr; 3108 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3109 bool is_dump = false; 3110 3111 if (!clone) 3112 return false; 3113 3114 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3115 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT)) 3116 goto out; 3117 3118 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3119 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3120 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3121 goto out; 3122 3123 is_dump = true; 3124 out: 3125 consume_skb(clone); 3126 return is_dump; 3127 } 3128 3129 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3130 { 3131 if (acl_pkt_is_dump_qca(hdev, skb)) 3132 return handle_dump_pkt_qca(hdev, skb); 3133 return hci_recv_frame(hdev, skb); 3134 } 3135 3136 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3137 { 3138 if (evt_pkt_is_dump_qca(hdev, skb)) 3139 return handle_dump_pkt_qca(hdev, skb); 3140 return hci_recv_frame(hdev, skb); 3141 } 3142 3143 3144 #define QCA_DFU_PACKET_LEN 4096 3145 3146 #define QCA_GET_TARGET_VERSION 0x09 3147 #define QCA_CHECK_STATUS 0x05 3148 #define QCA_DFU_DOWNLOAD 0x01 3149 3150 #define QCA_SYSCFG_UPDATED 0x40 3151 #define QCA_PATCH_UPDATED 0x80 3152 #define QCA_DFU_TIMEOUT 3000 3153 #define QCA_FLAG_MULTI_NVM 0x80 3154 #define QCA_BT_RESET_WAIT_MS 100 3155 3156 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3157 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3158 3159 struct qca_version { 3160 __le32 rom_version; 3161 __le32 patch_version; 3162 __le32 ram_version; 3163 __u8 chip_id; 3164 __u8 platform_id; 3165 __le16 flag; 3166 __u8 reserved[4]; 3167 } __packed; 3168 3169 struct qca_rampatch_version { 3170 __le16 rom_version_high; 3171 __le16 rom_version_low; 3172 __le16 patch_version; 3173 } __packed; 3174 3175 struct qca_device_info { 3176 u32 rom_version; 3177 u8 rampatch_hdr; /* length of header in rampatch */ 3178 u8 nvm_hdr; /* length of header in NVM */ 3179 u8 ver_offset; /* offset of version structure in rampatch */ 3180 }; 3181 3182 static const struct qca_device_info qca_devices_table[] = { 3183 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3184 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3185 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3186 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3187 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3188 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3189 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3190 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3191 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3192 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3193 }; 3194 3195 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3196 void *data, u16 size) 3197 { 3198 int pipe, err; 3199 u8 *buf; 3200 3201 buf = kmalloc(size, GFP_KERNEL); 3202 if (!buf) 3203 return -ENOMEM; 3204 3205 /* Found some of USB hosts have IOT issues with ours so that we should 3206 * not wait until HCI layer is ready. 3207 */ 3208 pipe = usb_rcvctrlpipe(udev, 0); 3209 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3210 0, 0, buf, size, USB_CTRL_GET_TIMEOUT); 3211 if (err < 0) { 3212 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3213 goto done; 3214 } 3215 3216 memcpy(data, buf, size); 3217 3218 done: 3219 kfree(buf); 3220 3221 return err; 3222 } 3223 3224 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3225 const struct firmware *firmware, 3226 size_t hdr_size) 3227 { 3228 struct btusb_data *btdata = hci_get_drvdata(hdev); 3229 struct usb_device *udev = btdata->udev; 3230 size_t count, size, sent = 0; 3231 int pipe, len, err; 3232 u8 *buf; 3233 3234 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3235 if (!buf) 3236 return -ENOMEM; 3237 3238 count = firmware->size; 3239 3240 size = min_t(size_t, count, hdr_size); 3241 memcpy(buf, firmware->data, size); 3242 3243 /* USB patches should go down to controller through USB path 3244 * because binary format fits to go down through USB channel. 3245 * USB control path is for patching headers and USB bulk is for 3246 * patch body. 3247 */ 3248 pipe = usb_sndctrlpipe(udev, 0); 3249 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3250 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3251 if (err < 0) { 3252 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3253 goto done; 3254 } 3255 3256 sent += size; 3257 count -= size; 3258 3259 /* ep2 need time to switch from function acl to function dfu, 3260 * so we add 20ms delay here. 3261 */ 3262 msleep(20); 3263 3264 while (count) { 3265 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3266 3267 memcpy(buf, firmware->data + sent, size); 3268 3269 pipe = usb_sndbulkpipe(udev, 0x02); 3270 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3271 QCA_DFU_TIMEOUT); 3272 if (err < 0) { 3273 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3274 sent, firmware->size, err); 3275 break; 3276 } 3277 3278 if (size != len) { 3279 bt_dev_err(hdev, "Failed to get bulk buffer"); 3280 err = -EILSEQ; 3281 break; 3282 } 3283 3284 sent += size; 3285 count -= size; 3286 } 3287 3288 done: 3289 kfree(buf); 3290 return err; 3291 } 3292 3293 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3294 struct qca_version *ver, 3295 const struct qca_device_info *info) 3296 { 3297 struct qca_rampatch_version *rver; 3298 const struct firmware *fw; 3299 u32 ver_rom, ver_patch, rver_rom; 3300 u16 rver_rom_low, rver_rom_high, rver_patch; 3301 char fwname[64]; 3302 int err; 3303 3304 ver_rom = le32_to_cpu(ver->rom_version); 3305 ver_patch = le32_to_cpu(ver->patch_version); 3306 3307 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3308 3309 err = request_firmware(&fw, fwname, &hdev->dev); 3310 if (err) { 3311 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3312 fwname, err); 3313 return err; 3314 } 3315 3316 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3317 3318 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3319 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3320 rver_patch = le16_to_cpu(rver->patch_version); 3321 3322 if (ver_rom & ~0xffffU) { 3323 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3324 rver_rom = rver_rom_high << 16 | rver_rom_low; 3325 } else { 3326 rver_rom = rver_rom_low; 3327 } 3328 3329 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3330 "firmware rome 0x%x build 0x%x", 3331 rver_rom, rver_patch, ver_rom, ver_patch); 3332 3333 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3334 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3335 err = -EINVAL; 3336 goto done; 3337 } 3338 3339 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3340 3341 done: 3342 release_firmware(fw); 3343 3344 return err; 3345 } 3346 3347 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3348 const struct qca_version *ver) 3349 { 3350 u32 rom_version = le32_to_cpu(ver->rom_version); 3351 u16 flag = le16_to_cpu(ver->flag); 3352 3353 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3354 /* The board_id should be split into two bytes 3355 * The 1st byte is chip ID, and the 2nd byte is platform ID 3356 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3357 * we have several platforms, and platform IDs are continuously added 3358 * Platform ID: 3359 * 0x00 is for Mobile 3360 * 0x01 is for X86 3361 * 0x02 is for Automotive 3362 * 0x03 is for Consumer electronic 3363 */ 3364 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3365 const char *variant; 3366 3367 switch (le32_to_cpu(ver->ram_version)) { 3368 case WCN6855_2_0_RAM_VERSION_GF: 3369 case WCN6855_2_1_RAM_VERSION_GF: 3370 variant = "_gf"; 3371 break; 3372 default: 3373 variant = ""; 3374 break; 3375 } 3376 3377 if (board_id == 0) { 3378 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3379 rom_version, variant); 3380 } else { 3381 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3382 rom_version, variant, board_id); 3383 } 3384 } else { 3385 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3386 rom_version); 3387 } 3388 3389 } 3390 3391 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3392 struct qca_version *ver, 3393 const struct qca_device_info *info) 3394 { 3395 const struct firmware *fw; 3396 char fwname[64]; 3397 int err; 3398 3399 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3400 3401 err = request_firmware(&fw, fwname, &hdev->dev); 3402 if (err) { 3403 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3404 fwname, err); 3405 return err; 3406 } 3407 3408 bt_dev_info(hdev, "using NVM file: %s", fwname); 3409 3410 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3411 3412 release_firmware(fw); 3413 3414 return err; 3415 } 3416 3417 /* identify the ROM version and check whether patches are needed */ 3418 static bool btusb_qca_need_patch(struct usb_device *udev) 3419 { 3420 struct qca_version ver; 3421 3422 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3423 sizeof(ver)) < 0) 3424 return false; 3425 /* only low ROM versions need patches */ 3426 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3427 } 3428 3429 static int btusb_setup_qca(struct hci_dev *hdev) 3430 { 3431 struct btusb_data *btdata = hci_get_drvdata(hdev); 3432 struct usb_device *udev = btdata->udev; 3433 const struct qca_device_info *info = NULL; 3434 struct qca_version ver; 3435 u32 ver_rom; 3436 u8 status; 3437 int i, err; 3438 3439 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3440 sizeof(ver)); 3441 if (err < 0) 3442 return err; 3443 3444 ver_rom = le32_to_cpu(ver.rom_version); 3445 3446 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3447 if (ver_rom == qca_devices_table[i].rom_version) 3448 info = &qca_devices_table[i]; 3449 } 3450 if (!info) { 3451 /* If the rom_version is not matched in the qca_devices_table 3452 * and the high ROM version is not zero, we assume this chip no 3453 * need to load the rampatch and nvm. 3454 */ 3455 if (ver_rom & ~0xffffU) 3456 return 0; 3457 3458 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3459 return -ENODEV; 3460 } 3461 3462 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3463 sizeof(status)); 3464 if (err < 0) 3465 return err; 3466 3467 if (!(status & QCA_PATCH_UPDATED)) { 3468 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3469 if (err < 0) 3470 return err; 3471 } 3472 3473 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3474 sizeof(ver)); 3475 if (err < 0) 3476 return err; 3477 3478 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3479 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3480 3481 if (!(status & QCA_SYSCFG_UPDATED)) { 3482 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3483 if (err < 0) 3484 return err; 3485 3486 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3487 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3488 * cause potential enable failure. 3489 */ 3490 if (info->rom_version >= 0x00130201) 3491 msleep(QCA_BT_RESET_WAIT_MS); 3492 } 3493 3494 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3495 * work with the likes of HSP/HFP mSBC. 3496 */ 3497 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3498 3499 return 0; 3500 } 3501 3502 static inline int __set_diag_interface(struct hci_dev *hdev) 3503 { 3504 struct btusb_data *data = hci_get_drvdata(hdev); 3505 struct usb_interface *intf = data->diag; 3506 int i; 3507 3508 if (!data->diag) 3509 return -ENODEV; 3510 3511 data->diag_tx_ep = NULL; 3512 data->diag_rx_ep = NULL; 3513 3514 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3515 struct usb_endpoint_descriptor *ep_desc; 3516 3517 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3518 3519 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3520 data->diag_tx_ep = ep_desc; 3521 continue; 3522 } 3523 3524 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3525 data->diag_rx_ep = ep_desc; 3526 continue; 3527 } 3528 } 3529 3530 if (!data->diag_tx_ep || !data->diag_rx_ep) { 3531 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3532 return -ENODEV; 3533 } 3534 3535 return 0; 3536 } 3537 3538 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3539 { 3540 struct btusb_data *data = hci_get_drvdata(hdev); 3541 struct sk_buff *skb; 3542 struct urb *urb; 3543 unsigned int pipe; 3544 3545 if (!data->diag_tx_ep) 3546 return ERR_PTR(-ENODEV); 3547 3548 urb = usb_alloc_urb(0, GFP_KERNEL); 3549 if (!urb) 3550 return ERR_PTR(-ENOMEM); 3551 3552 skb = bt_skb_alloc(2, GFP_KERNEL); 3553 if (!skb) { 3554 usb_free_urb(urb); 3555 return ERR_PTR(-ENOMEM); 3556 } 3557 3558 skb_put_u8(skb, 0xf0); 3559 skb_put_u8(skb, enable); 3560 3561 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 3562 3563 usb_fill_bulk_urb(urb, data->udev, pipe, 3564 skb->data, skb->len, btusb_tx_complete, skb); 3565 3566 skb->dev = (void *)hdev; 3567 3568 return urb; 3569 } 3570 3571 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 3572 { 3573 struct btusb_data *data = hci_get_drvdata(hdev); 3574 struct urb *urb; 3575 3576 if (!data->diag) 3577 return -ENODEV; 3578 3579 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3580 return -ENETDOWN; 3581 3582 urb = alloc_diag_urb(hdev, enable); 3583 if (IS_ERR(urb)) 3584 return PTR_ERR(urb); 3585 3586 return submit_or_queue_tx_urb(hdev, urb); 3587 } 3588 3589 #ifdef CONFIG_PM 3590 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 3591 { 3592 struct btusb_data *data = priv; 3593 3594 pm_wakeup_event(&data->udev->dev, 0); 3595 pm_system_wakeup(); 3596 3597 /* Disable only if not already disabled (keep it balanced) */ 3598 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3599 disable_irq_nosync(irq); 3600 disable_irq_wake(irq); 3601 } 3602 return IRQ_HANDLED; 3603 } 3604 3605 static const struct of_device_id btusb_match_table[] = { 3606 { .compatible = "usb1286,204e" }, 3607 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 3608 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 3609 { } 3610 }; 3611 MODULE_DEVICE_TABLE(of, btusb_match_table); 3612 3613 /* Use an oob wakeup pin? */ 3614 static int btusb_config_oob_wake(struct hci_dev *hdev) 3615 { 3616 struct btusb_data *data = hci_get_drvdata(hdev); 3617 struct device *dev = &data->udev->dev; 3618 int irq, ret; 3619 3620 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3621 3622 if (!of_match_device(btusb_match_table, dev)) 3623 return 0; 3624 3625 /* Move on if no IRQ specified */ 3626 irq = of_irq_get_byname(dev->of_node, "wakeup"); 3627 if (irq <= 0) { 3628 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 3629 return 0; 3630 } 3631 3632 irq_set_status_flags(irq, IRQ_NOAUTOEN); 3633 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 3634 0, "OOB Wake-on-BT", data); 3635 if (ret) { 3636 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 3637 return ret; 3638 } 3639 3640 ret = device_init_wakeup(dev, true); 3641 if (ret) { 3642 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 3643 return ret; 3644 } 3645 3646 data->oob_wake_irq = irq; 3647 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 3648 return 0; 3649 } 3650 #endif 3651 3652 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 3653 { 3654 if (dmi_check_system(btusb_needs_reset_resume_table)) 3655 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3656 } 3657 3658 static bool btusb_wakeup(struct hci_dev *hdev) 3659 { 3660 struct btusb_data *data = hci_get_drvdata(hdev); 3661 3662 return device_may_wakeup(&data->udev->dev); 3663 } 3664 3665 static int btusb_shutdown_qca(struct hci_dev *hdev) 3666 { 3667 struct sk_buff *skb; 3668 3669 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 3670 if (IS_ERR(skb)) { 3671 bt_dev_err(hdev, "HCI reset during shutdown failed"); 3672 return PTR_ERR(skb); 3673 } 3674 kfree_skb(skb); 3675 3676 return 0; 3677 } 3678 3679 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 3680 size_t count, loff_t *ppos) 3681 { 3682 struct btusb_data *data = file->private_data; 3683 char buf[3]; 3684 3685 buf[0] = data->poll_sync ? 'Y' : 'N'; 3686 buf[1] = '\n'; 3687 buf[2] = '\0'; 3688 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 3689 } 3690 3691 static ssize_t force_poll_sync_write(struct file *file, 3692 const char __user *user_buf, 3693 size_t count, loff_t *ppos) 3694 { 3695 struct btusb_data *data = file->private_data; 3696 bool enable; 3697 int err; 3698 3699 err = kstrtobool_from_user(user_buf, count, &enable); 3700 if (err) 3701 return err; 3702 3703 /* Only allow changes while the adapter is down */ 3704 if (test_bit(HCI_UP, &data->hdev->flags)) 3705 return -EPERM; 3706 3707 if (data->poll_sync == enable) 3708 return -EALREADY; 3709 3710 data->poll_sync = enable; 3711 3712 return count; 3713 } 3714 3715 static const struct file_operations force_poll_sync_fops = { 3716 .owner = THIS_MODULE, 3717 .open = simple_open, 3718 .read = force_poll_sync_read, 3719 .write = force_poll_sync_write, 3720 .llseek = default_llseek, 3721 }; 3722 3723 #define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \ 3724 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000) 3725 #define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0 3726 struct btusb_hci_drv_rp_supported_altsettings { 3727 __u8 num; 3728 __u8 altsettings[]; 3729 } __packed; 3730 3731 #define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \ 3732 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001) 3733 #define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1 3734 struct btusb_hci_drv_cmd_switch_altsetting { 3735 __u8 altsetting; 3736 } __packed; 3737 3738 static const struct { 3739 u16 opcode; 3740 const char *desc; 3741 } btusb_hci_drv_supported_commands[] = { 3742 /* Common commands */ 3743 { HCI_DRV_OP_READ_INFO, "Read Info" }, 3744 3745 /* Driver specific commands */ 3746 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" }, 3747 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" }, 3748 }; 3749 static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data, 3750 u16 data_len) 3751 { 3752 struct hci_drv_rp_read_info *rp; 3753 size_t rp_size; 3754 int err, i; 3755 u16 opcode, num_supported_commands = 3756 ARRAY_SIZE(btusb_hci_drv_supported_commands); 3757 3758 rp_size = sizeof(*rp) + num_supported_commands * 2; 3759 3760 rp = kmalloc(rp_size, GFP_KERNEL); 3761 if (!rp) 3762 return -ENOMEM; 3763 3764 strscpy_pad(rp->driver_name, btusb_driver.name); 3765 3766 rp->num_supported_commands = cpu_to_le16(num_supported_commands); 3767 for (i = 0; i < num_supported_commands; i++) { 3768 opcode = btusb_hci_drv_supported_commands[i].opcode; 3769 bt_dev_info(hdev, 3770 "Supported HCI Drv command (0x%02x|0x%04x): %s", 3771 hci_opcode_ogf(opcode), 3772 hci_opcode_ocf(opcode), 3773 btusb_hci_drv_supported_commands[i].desc); 3774 rp->supported_commands[i] = cpu_to_le16(opcode); 3775 } 3776 3777 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO, 3778 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 3779 3780 kfree(rp); 3781 return err; 3782 } 3783 3784 static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data, 3785 u16 data_len) 3786 { 3787 struct btusb_data *drvdata = hci_get_drvdata(hdev); 3788 struct btusb_hci_drv_rp_supported_altsettings *rp; 3789 size_t rp_size; 3790 int err; 3791 u8 i; 3792 3793 /* There are at most 7 alt (0 - 6) */ 3794 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL); 3795 3796 rp->num = 0; 3797 if (!drvdata->isoc) 3798 goto done; 3799 3800 for (i = 0; i <= 6; i++) { 3801 if (btusb_find_altsetting(drvdata, i)) 3802 rp->altsettings[rp->num++] = i; 3803 } 3804 3805 done: 3806 rp_size = sizeof(*rp) + rp->num; 3807 3808 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, 3809 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 3810 kfree(rp); 3811 return err; 3812 } 3813 3814 static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data, 3815 u16 data_len) 3816 { 3817 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data; 3818 u8 status; 3819 3820 if (cmd->altsetting > 6) { 3821 status = HCI_DRV_STATUS_INVALID_PARAMETERS; 3822 } else { 3823 if (btusb_switch_alt_setting(hdev, cmd->altsetting)) 3824 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR; 3825 else 3826 status = HCI_DRV_STATUS_SUCCESS; 3827 } 3828 3829 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, 3830 status); 3831 } 3832 3833 static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = { 3834 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE }, 3835 }; 3836 3837 static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = { 3838 { btusb_hci_drv_supported_altsettings, 3839 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE }, 3840 { btusb_hci_drv_switch_altsetting, 3841 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE }, 3842 }; 3843 3844 static struct hci_drv btusb_hci_drv = { 3845 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers), 3846 .common_handlers = btusb_hci_drv_common_handlers, 3847 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers), 3848 .specific_handlers = btusb_hci_drv_specific_handlers, 3849 }; 3850 3851 static int btusb_probe(struct usb_interface *intf, 3852 const struct usb_device_id *id) 3853 { 3854 struct usb_endpoint_descriptor *ep_desc; 3855 struct gpio_desc *reset_gpio; 3856 struct btusb_data *data; 3857 struct hci_dev *hdev; 3858 unsigned ifnum_base; 3859 int i, err, priv_size; 3860 3861 BT_DBG("intf %p id %p", intf, id); 3862 3863 if ((id->driver_info & BTUSB_IFNUM_2) && 3864 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 3865 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 3866 return -ENODEV; 3867 3868 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 3869 3870 if (!id->driver_info) { 3871 const struct usb_device_id *match; 3872 3873 match = usb_match_id(intf, quirks_table); 3874 if (match) 3875 id = match; 3876 } 3877 3878 if (id->driver_info == BTUSB_IGNORE) 3879 return -ENODEV; 3880 3881 if (id->driver_info & BTUSB_ATH3012) { 3882 struct usb_device *udev = interface_to_usbdev(intf); 3883 3884 /* Old firmware would otherwise let ath3k driver load 3885 * patch and sysconfig files 3886 */ 3887 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 3888 !btusb_qca_need_patch(udev)) 3889 return -ENODEV; 3890 } 3891 3892 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 3893 if (!data) 3894 return -ENOMEM; 3895 3896 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3897 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3898 3899 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 3900 data->intr_ep = ep_desc; 3901 continue; 3902 } 3903 3904 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3905 data->bulk_tx_ep = ep_desc; 3906 continue; 3907 } 3908 3909 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3910 data->bulk_rx_ep = ep_desc; 3911 continue; 3912 } 3913 } 3914 3915 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 3916 return -ENODEV; 3917 3918 if (id->driver_info & BTUSB_AMP) { 3919 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 3920 data->cmdreq = 0x2b; 3921 } else { 3922 data->cmdreq_type = USB_TYPE_CLASS; 3923 data->cmdreq = 0x00; 3924 } 3925 3926 data->udev = interface_to_usbdev(intf); 3927 data->intf = intf; 3928 3929 INIT_WORK(&data->work, btusb_work); 3930 INIT_WORK(&data->waker, btusb_waker); 3931 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 3932 3933 skb_queue_head_init(&data->acl_q); 3934 3935 init_usb_anchor(&data->deferred); 3936 init_usb_anchor(&data->tx_anchor); 3937 spin_lock_init(&data->txlock); 3938 3939 init_usb_anchor(&data->intr_anchor); 3940 init_usb_anchor(&data->bulk_anchor); 3941 init_usb_anchor(&data->isoc_anchor); 3942 init_usb_anchor(&data->diag_anchor); 3943 init_usb_anchor(&data->ctrl_anchor); 3944 spin_lock_init(&data->rxlock); 3945 3946 priv_size = 0; 3947 3948 data->recv_event = hci_recv_frame; 3949 data->recv_bulk = btusb_recv_bulk; 3950 3951 if (id->driver_info & BTUSB_INTEL_COMBINED) { 3952 /* Allocate extra space for Intel device */ 3953 priv_size += sizeof(struct btintel_data); 3954 3955 /* Override the rx handlers */ 3956 data->recv_event = btintel_recv_event; 3957 data->recv_bulk = btusb_recv_bulk_intel; 3958 } else if (id->driver_info & BTUSB_REALTEK) { 3959 /* Allocate extra space for Realtek device */ 3960 priv_size += sizeof(struct btrealtek_data); 3961 3962 data->recv_event = btusb_recv_event_realtek; 3963 } else if (id->driver_info & BTUSB_MEDIATEK) { 3964 /* Allocate extra space for Mediatek device */ 3965 priv_size += sizeof(struct btmtk_data); 3966 } 3967 3968 data->recv_acl = hci_recv_frame; 3969 3970 hdev = hci_alloc_dev_priv(priv_size); 3971 if (!hdev) 3972 return -ENOMEM; 3973 3974 hdev->bus = HCI_USB; 3975 hci_set_drvdata(hdev, data); 3976 3977 data->hdev = hdev; 3978 3979 SET_HCIDEV_DEV(hdev, &intf->dev); 3980 3981 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 3982 GPIOD_OUT_LOW); 3983 if (IS_ERR(reset_gpio)) { 3984 err = PTR_ERR(reset_gpio); 3985 goto out_free_dev; 3986 } else if (reset_gpio) { 3987 data->reset_gpio = reset_gpio; 3988 } 3989 3990 hdev->open = btusb_open; 3991 hdev->close = btusb_close; 3992 hdev->flush = btusb_flush; 3993 hdev->send = btusb_send_frame; 3994 hdev->notify = btusb_notify; 3995 hdev->wakeup = btusb_wakeup; 3996 hdev->hci_drv = &btusb_hci_drv; 3997 3998 #ifdef CONFIG_PM 3999 err = btusb_config_oob_wake(hdev); 4000 if (err) 4001 goto out_free_dev; 4002 4003 /* Marvell devices may need a specific chip configuration */ 4004 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4005 err = marvell_config_oob_wake(hdev); 4006 if (err) 4007 goto out_free_dev; 4008 } 4009 #endif 4010 if (id->driver_info & BTUSB_CW6622) 4011 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4012 4013 if (id->driver_info & BTUSB_BCM2045) 4014 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4015 4016 if (id->driver_info & BTUSB_BCM92035) 4017 hdev->setup = btusb_setup_bcm92035; 4018 4019 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4020 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4021 hdev->manufacturer = 15; 4022 hdev->setup = btbcm_setup_patchram; 4023 hdev->set_diag = btusb_bcm_set_diag; 4024 hdev->set_bdaddr = btbcm_set_bdaddr; 4025 4026 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4027 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4028 } 4029 4030 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4031 (id->driver_info & BTUSB_BCM_APPLE)) { 4032 hdev->manufacturer = 15; 4033 hdev->setup = btbcm_setup_apple; 4034 hdev->set_diag = btusb_bcm_set_diag; 4035 4036 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4037 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4038 } 4039 4040 /* Combined Intel Device setup to support multiple setup routine */ 4041 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4042 err = btintel_configure_setup(hdev, btusb_driver.name); 4043 if (err) 4044 goto out_free_dev; 4045 4046 /* Transport specific configuration */ 4047 hdev->send = btusb_send_frame_intel; 4048 hdev->reset = btusb_intel_reset; 4049 4050 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4051 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4052 4053 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4054 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4055 4056 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4057 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4058 } 4059 4060 if (id->driver_info & BTUSB_MARVELL) 4061 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4062 4063 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4064 (id->driver_info & BTUSB_MEDIATEK)) { 4065 hdev->setup = btusb_mtk_setup; 4066 hdev->shutdown = btusb_mtk_shutdown; 4067 hdev->manufacturer = 70; 4068 hdev->reset = btmtk_reset_sync; 4069 hdev->set_bdaddr = btmtk_set_bdaddr; 4070 hdev->send = btusb_send_frame_mtk; 4071 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4072 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4073 data->recv_acl = btmtk_usb_recv_acl; 4074 data->suspend = btmtk_usb_suspend; 4075 data->resume = btmtk_usb_resume; 4076 data->disconnect = btusb_mtk_disconnect; 4077 } 4078 4079 if (id->driver_info & BTUSB_SWAVE) { 4080 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4081 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4082 } 4083 4084 if (id->driver_info & BTUSB_INTEL_BOOT) { 4085 hdev->manufacturer = 2; 4086 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4087 } 4088 4089 if (id->driver_info & BTUSB_ATH3012) { 4090 data->setup_on_usb = btusb_setup_qca; 4091 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4092 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4093 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4094 } 4095 4096 if (id->driver_info & BTUSB_QCA_ROME) { 4097 data->setup_on_usb = btusb_setup_qca; 4098 hdev->shutdown = btusb_shutdown_qca; 4099 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4100 hdev->reset = btusb_qca_reset; 4101 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4102 btusb_check_needs_reset_resume(intf); 4103 } 4104 4105 if (id->driver_info & BTUSB_QCA_WCN6855) { 4106 data->qca_dump.id_vendor = id->idVendor; 4107 data->qca_dump.id_product = id->idProduct; 4108 data->recv_event = btusb_recv_evt_qca; 4109 data->recv_acl = btusb_recv_acl_qca; 4110 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4111 data->setup_on_usb = btusb_setup_qca; 4112 hdev->shutdown = btusb_shutdown_qca; 4113 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4114 hdev->reset = btusb_qca_reset; 4115 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4116 hci_set_msft_opcode(hdev, 0xFD70); 4117 } 4118 4119 if (id->driver_info & BTUSB_AMP) { 4120 /* AMP controllers do not support SCO packets */ 4121 data->isoc = NULL; 4122 } else { 4123 /* Interface orders are hardcoded in the specification */ 4124 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4125 data->isoc_ifnum = ifnum_base + 1; 4126 } 4127 4128 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4129 (id->driver_info & BTUSB_REALTEK)) { 4130 btrtl_set_driver_name(hdev, btusb_driver.name); 4131 hdev->setup = btusb_setup_realtek; 4132 hdev->shutdown = btrtl_shutdown_realtek; 4133 hdev->reset = btusb_rtl_reset; 4134 hdev->hw_error = btusb_rtl_hw_error; 4135 4136 /* Realtek devices need to set remote wakeup on auto-suspend */ 4137 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4138 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4139 } 4140 4141 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4142 /* Support is advertised, but not implemented */ 4143 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4144 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4145 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4146 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4147 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks); 4148 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks); 4149 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks); 4150 } 4151 4152 if (!reset) 4153 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4154 4155 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4156 if (!disable_scofix) 4157 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4158 } 4159 4160 if (id->driver_info & BTUSB_BROKEN_ISOC) 4161 data->isoc = NULL; 4162 4163 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4164 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4165 4166 if (id->driver_info & BTUSB_INVALID_LE_STATES) 4167 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks); 4168 4169 if (id->driver_info & BTUSB_DIGIANSWER) { 4170 data->cmdreq_type = USB_TYPE_VENDOR; 4171 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4172 } 4173 4174 if (id->driver_info & BTUSB_CSR) { 4175 struct usb_device *udev = data->udev; 4176 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4177 4178 /* Old firmware would otherwise execute USB reset */ 4179 if (bcdDevice < 0x117) 4180 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4181 4182 /* This must be set first in case we disable it for fakes */ 4183 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4184 4185 /* Fake CSR devices with broken commands */ 4186 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4187 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4188 hdev->setup = btusb_setup_csr; 4189 } 4190 4191 if (id->driver_info & BTUSB_SNIFFER) { 4192 struct usb_device *udev = data->udev; 4193 4194 /* New sniffer firmware has crippled HCI interface */ 4195 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4196 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4197 } 4198 4199 if (id->driver_info & BTUSB_INTEL_BOOT) { 4200 /* A bug in the bootloader causes that interrupt interface is 4201 * only enabled after receiving SetInterface(0, AltSetting=0). 4202 */ 4203 err = usb_set_interface(data->udev, 0, 0); 4204 if (err < 0) { 4205 BT_ERR("failed to set interface 0, alt 0 %d", err); 4206 goto out_free_dev; 4207 } 4208 } 4209 4210 if (data->isoc) { 4211 err = usb_driver_claim_interface(&btusb_driver, 4212 data->isoc, data); 4213 if (err < 0) 4214 goto out_free_dev; 4215 } 4216 4217 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4218 if (!usb_driver_claim_interface(&btusb_driver, 4219 data->diag, data)) 4220 __set_diag_interface(hdev); 4221 else 4222 data->diag = NULL; 4223 } 4224 4225 if (enable_autosuspend) 4226 usb_enable_autosuspend(data->udev); 4227 4228 data->poll_sync = enable_poll_sync; 4229 4230 err = hci_register_dev(hdev); 4231 if (err < 0) 4232 goto out_free_dev; 4233 4234 usb_set_intfdata(intf, data); 4235 4236 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4237 &force_poll_sync_fops); 4238 4239 return 0; 4240 4241 out_free_dev: 4242 if (data->reset_gpio) 4243 gpiod_put(data->reset_gpio); 4244 hci_free_dev(hdev); 4245 return err; 4246 } 4247 4248 static void btusb_disconnect(struct usb_interface *intf) 4249 { 4250 struct btusb_data *data = usb_get_intfdata(intf); 4251 struct hci_dev *hdev; 4252 4253 BT_DBG("intf %p", intf); 4254 4255 if (!data) 4256 return; 4257 4258 hdev = data->hdev; 4259 usb_set_intfdata(data->intf, NULL); 4260 4261 if (data->isoc) 4262 usb_set_intfdata(data->isoc, NULL); 4263 4264 if (data->diag) 4265 usb_set_intfdata(data->diag, NULL); 4266 4267 if (data->disconnect) 4268 data->disconnect(hdev); 4269 4270 hci_unregister_dev(hdev); 4271 4272 if (intf == data->intf) { 4273 if (data->isoc) 4274 usb_driver_release_interface(&btusb_driver, data->isoc); 4275 if (data->diag) 4276 usb_driver_release_interface(&btusb_driver, data->diag); 4277 } else if (intf == data->isoc) { 4278 if (data->diag) 4279 usb_driver_release_interface(&btusb_driver, data->diag); 4280 usb_driver_release_interface(&btusb_driver, data->intf); 4281 } else if (intf == data->diag) { 4282 usb_driver_release_interface(&btusb_driver, data->intf); 4283 if (data->isoc) 4284 usb_driver_release_interface(&btusb_driver, data->isoc); 4285 } 4286 4287 if (data->oob_wake_irq) 4288 device_init_wakeup(&data->udev->dev, false); 4289 4290 if (data->reset_gpio) 4291 gpiod_put(data->reset_gpio); 4292 4293 hci_free_dev(hdev); 4294 } 4295 4296 #ifdef CONFIG_PM 4297 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4298 { 4299 struct btusb_data *data = usb_get_intfdata(intf); 4300 4301 BT_DBG("intf %p", intf); 4302 4303 /* Don't auto-suspend if there are connections; external suspend calls 4304 * shall never fail. 4305 */ 4306 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev)) 4307 return -EBUSY; 4308 4309 if (data->suspend_count++) 4310 return 0; 4311 4312 spin_lock_irq(&data->txlock); 4313 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4314 set_bit(BTUSB_SUSPENDING, &data->flags); 4315 spin_unlock_irq(&data->txlock); 4316 } else { 4317 spin_unlock_irq(&data->txlock); 4318 data->suspend_count--; 4319 return -EBUSY; 4320 } 4321 4322 cancel_work_sync(&data->work); 4323 4324 if (data->suspend) 4325 data->suspend(data->hdev); 4326 4327 btusb_stop_traffic(data); 4328 usb_kill_anchored_urbs(&data->tx_anchor); 4329 4330 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4331 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4332 enable_irq_wake(data->oob_wake_irq); 4333 enable_irq(data->oob_wake_irq); 4334 } 4335 4336 /* For global suspend, Realtek devices lose the loaded fw 4337 * in them. But for autosuspend, firmware should remain. 4338 * Actually, it depends on whether the usb host sends 4339 * set feature (enable wakeup) or not. 4340 */ 4341 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4342 if (PMSG_IS_AUTO(message) && 4343 device_can_wakeup(&data->udev->dev)) 4344 data->udev->do_remote_wakeup = 1; 4345 else if (!PMSG_IS_AUTO(message) && 4346 !device_may_wakeup(&data->udev->dev)) { 4347 data->udev->do_remote_wakeup = 0; 4348 data->udev->reset_resume = 1; 4349 } 4350 } 4351 4352 return 0; 4353 } 4354 4355 static void play_deferred(struct btusb_data *data) 4356 { 4357 struct urb *urb; 4358 int err; 4359 4360 while ((urb = usb_get_from_anchor(&data->deferred))) { 4361 usb_anchor_urb(urb, &data->tx_anchor); 4362 4363 err = usb_submit_urb(urb, GFP_ATOMIC); 4364 if (err < 0) { 4365 if (err != -EPERM && err != -ENODEV) 4366 BT_ERR("%s urb %p submission failed (%d)", 4367 data->hdev->name, urb, -err); 4368 kfree(urb->setup_packet); 4369 usb_unanchor_urb(urb); 4370 usb_free_urb(urb); 4371 break; 4372 } 4373 4374 data->tx_in_flight++; 4375 usb_free_urb(urb); 4376 } 4377 4378 /* Cleanup the rest deferred urbs. */ 4379 while ((urb = usb_get_from_anchor(&data->deferred))) { 4380 kfree(urb->setup_packet); 4381 usb_free_urb(urb); 4382 } 4383 } 4384 4385 static int btusb_resume(struct usb_interface *intf) 4386 { 4387 struct btusb_data *data = usb_get_intfdata(intf); 4388 struct hci_dev *hdev = data->hdev; 4389 int err = 0; 4390 4391 BT_DBG("intf %p", intf); 4392 4393 if (--data->suspend_count) 4394 return 0; 4395 4396 /* Disable only if not already disabled (keep it balanced) */ 4397 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4398 disable_irq(data->oob_wake_irq); 4399 disable_irq_wake(data->oob_wake_irq); 4400 } 4401 4402 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4403 goto done; 4404 4405 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4406 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4407 if (err < 0) { 4408 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4409 goto failed; 4410 } 4411 } 4412 4413 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4414 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4415 if (err < 0) { 4416 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4417 goto failed; 4418 } 4419 4420 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4421 } 4422 4423 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4424 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4425 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4426 else 4427 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4428 } 4429 4430 if (data->resume) 4431 data->resume(hdev); 4432 4433 spin_lock_irq(&data->txlock); 4434 play_deferred(data); 4435 clear_bit(BTUSB_SUSPENDING, &data->flags); 4436 spin_unlock_irq(&data->txlock); 4437 schedule_work(&data->work); 4438 4439 return 0; 4440 4441 failed: 4442 usb_scuttle_anchored_urbs(&data->deferred); 4443 done: 4444 spin_lock_irq(&data->txlock); 4445 clear_bit(BTUSB_SUSPENDING, &data->flags); 4446 spin_unlock_irq(&data->txlock); 4447 4448 return err; 4449 } 4450 #endif 4451 4452 #ifdef CONFIG_DEV_COREDUMP 4453 static void btusb_coredump(struct device *dev) 4454 { 4455 struct btusb_data *data = dev_get_drvdata(dev); 4456 struct hci_dev *hdev = data->hdev; 4457 4458 if (hdev->dump.coredump) 4459 hdev->dump.coredump(hdev); 4460 } 4461 #endif 4462 4463 static struct usb_driver btusb_driver = { 4464 .name = "btusb", 4465 .probe = btusb_probe, 4466 .disconnect = btusb_disconnect, 4467 #ifdef CONFIG_PM 4468 .suspend = btusb_suspend, 4469 .resume = btusb_resume, 4470 #endif 4471 .id_table = btusb_table, 4472 .supports_autosuspend = 1, 4473 .disable_hub_initiated_lpm = 1, 4474 4475 #ifdef CONFIG_DEV_COREDUMP 4476 .driver = { 4477 .coredump = btusb_coredump, 4478 }, 4479 #endif 4480 }; 4481 4482 module_usb_driver(btusb_driver); 4483 4484 module_param(disable_scofix, bool, 0644); 4485 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4486 4487 module_param(force_scofix, bool, 0644); 4488 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4489 4490 module_param(enable_autosuspend, bool, 0644); 4491 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4492 4493 module_param(reset, bool, 0644); 4494 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4495 4496 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4497 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4498 MODULE_VERSION(VERSION); 4499 MODULE_LICENSE("GPL"); 4500