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