1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Generic Bluetooth USB driver 5 * 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 7 */ 8 9 #include <linux/dmi.h> 10 #include <linux/module.h> 11 #include <linux/usb.h> 12 #include <linux/usb/quirks.h> 13 #include <linux/firmware.h> 14 #include <linux/iopoll.h> 15 #include <linux/of_device.h> 16 #include <linux/of_irq.h> 17 #include <linux/suspend.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/debugfs.h> 20 #include <linux/unaligned.h> 21 22 #include <net/bluetooth/bluetooth.h> 23 #include <net/bluetooth/hci_core.h> 24 #include <net/bluetooth/hci_drv.h> 25 26 #include "btintel.h" 27 #include "btbcm.h" 28 #include "btrtl.h" 29 #include "btmtk.h" 30 31 #define VERSION "0.8" 32 33 static bool disable_scofix; 34 static bool force_scofix; 35 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 36 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 37 static bool reset = true; 38 39 static struct usb_driver btusb_driver; 40 41 #define BTUSB_IGNORE BIT(0) 42 #define BTUSB_DIGIANSWER BIT(1) 43 #define BTUSB_CSR BIT(2) 44 #define BTUSB_SNIFFER BIT(3) 45 #define BTUSB_BCM92035 BIT(4) 46 #define BTUSB_BROKEN_ISOC BIT(5) 47 #define BTUSB_WRONG_SCO_MTU BIT(6) 48 #define BTUSB_ATH3012 BIT(7) 49 #define BTUSB_INTEL_COMBINED BIT(8) 50 #define BTUSB_INTEL_BOOT BIT(9) 51 #define BTUSB_BCM_PATCHRAM BIT(10) 52 #define BTUSB_MARVELL BIT(11) 53 #define BTUSB_SWAVE BIT(12) 54 #define BTUSB_AMP BIT(13) 55 #define BTUSB_QCA_ROME BIT(14) 56 #define BTUSB_BCM_APPLE BIT(15) 57 #define BTUSB_REALTEK BIT(16) 58 #define BTUSB_BCM2045 BIT(17) 59 #define BTUSB_IFNUM_2 BIT(18) 60 #define BTUSB_CW6622 BIT(19) 61 #define BTUSB_MEDIATEK BIT(20) 62 #define BTUSB_WIDEBAND_SPEECH BIT(21) 63 #define BTUSB_INVALID_LE_STATES BIT(22) 64 #define BTUSB_QCA_WCN6855 BIT(23) 65 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 66 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 67 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 68 #define BTUSB_ACTIONS_SEMI BIT(27) 69 #define BTUSB_BARROT BIT(28) 70 71 static const struct usb_device_id btusb_table[] = { 72 /* Generic Bluetooth USB device */ 73 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 74 75 /* Generic Bluetooth AMP device */ 76 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 77 78 /* Generic Bluetooth USB interface */ 79 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 80 81 /* Apple-specific (Broadcom) devices */ 82 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 83 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 84 85 /* MediaTek MT76x0E */ 86 { USB_DEVICE(0x0e8d, 0x763f) }, 87 88 /* Broadcom SoftSailing reporting vendor specific */ 89 { USB_DEVICE(0x0a5c, 0x21e1) }, 90 91 /* Apple MacBookPro 7,1 */ 92 { USB_DEVICE(0x05ac, 0x8213) }, 93 94 /* Apple iMac11,1 */ 95 { USB_DEVICE(0x05ac, 0x8215) }, 96 97 /* Apple MacBookPro6,2 */ 98 { USB_DEVICE(0x05ac, 0x8218) }, 99 100 /* Apple MacBookAir3,1, MacBookAir3,2 */ 101 { USB_DEVICE(0x05ac, 0x821b) }, 102 103 /* Apple MacBookAir4,1 */ 104 { USB_DEVICE(0x05ac, 0x821f) }, 105 106 /* Apple MacBookPro8,2 */ 107 { USB_DEVICE(0x05ac, 0x821a) }, 108 109 /* Apple MacMini5,1 */ 110 { USB_DEVICE(0x05ac, 0x8281) }, 111 112 /* AVM BlueFRITZ! USB v2.0 */ 113 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 114 115 /* Bluetooth Ultraport Module from IBM */ 116 { USB_DEVICE(0x04bf, 0x030a) }, 117 118 /* ALPS Modules with non-standard id */ 119 { USB_DEVICE(0x044e, 0x3001) }, 120 { USB_DEVICE(0x044e, 0x3002) }, 121 122 /* Ericsson with non-standard id */ 123 { USB_DEVICE(0x0bdb, 0x1002) }, 124 125 /* Canyon CN-BTU1 with HID interfaces */ 126 { USB_DEVICE(0x0c10, 0x0000) }, 127 128 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 129 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 130 131 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 132 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 133 .driver_info = BTUSB_BCM_PATCHRAM }, 134 135 /* Broadcom BCM920703 (HTC Vive) */ 136 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 137 .driver_info = BTUSB_BCM_PATCHRAM }, 138 139 /* Foxconn - Hon Hai */ 140 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 141 .driver_info = BTUSB_BCM_PATCHRAM }, 142 143 /* Lite-On Technology - Broadcom based */ 144 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 145 .driver_info = BTUSB_BCM_PATCHRAM }, 146 147 /* Broadcom devices with vendor specific id */ 148 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 149 .driver_info = BTUSB_BCM_PATCHRAM }, 150 151 /* ASUSTek Computer - Broadcom based */ 152 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 153 .driver_info = BTUSB_BCM_PATCHRAM }, 154 155 /* Belkin F8065bf - Broadcom based */ 156 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 157 .driver_info = BTUSB_BCM_PATCHRAM }, 158 159 /* IMC Networks - Broadcom based */ 160 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 161 .driver_info = BTUSB_BCM_PATCHRAM }, 162 163 /* Dell Computer - Broadcom based */ 164 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 165 .driver_info = BTUSB_BCM_PATCHRAM }, 166 167 /* Toshiba Corp - Broadcom based */ 168 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 169 .driver_info = BTUSB_BCM_PATCHRAM }, 170 171 /* Intel Bluetooth USB Bootloader (RAM module) */ 172 { USB_DEVICE(0x8087, 0x0a5a), 173 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 174 175 { } /* Terminating entry */ 176 }; 177 178 MODULE_DEVICE_TABLE(usb, btusb_table); 179 180 static const struct usb_device_id quirks_table[] = { 181 /* CSR BlueCore devices */ 182 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 183 184 /* Broadcom BCM2033 without firmware */ 185 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 186 187 /* Broadcom BCM2045 devices */ 188 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 189 190 /* Atheros 3011 with sflash firmware */ 191 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 196 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 197 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 198 199 /* Atheros AR9285 Malbec with sflash firmware */ 200 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 201 202 /* Atheros 3012 with sflash firmware */ 203 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 253 254 /* Atheros AR5BBU12 with sflash firmware */ 255 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 256 257 /* Atheros AR5BBU12 with sflash firmware */ 258 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 259 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 260 261 /* QCA ROME chipset */ 262 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 263 BTUSB_WIDEBAND_SPEECH }, 264 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 265 BTUSB_WIDEBAND_SPEECH }, 266 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 267 BTUSB_WIDEBAND_SPEECH }, 268 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 269 BTUSB_WIDEBAND_SPEECH }, 270 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 271 BTUSB_WIDEBAND_SPEECH }, 272 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 273 BTUSB_WIDEBAND_SPEECH }, 274 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 275 BTUSB_WIDEBAND_SPEECH }, 276 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 299 BTUSB_WIDEBAND_SPEECH }, 300 301 /* QCA WCN6855 chipset */ 302 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 303 BTUSB_WIDEBAND_SPEECH }, 304 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 305 BTUSB_WIDEBAND_SPEECH }, 306 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 307 BTUSB_WIDEBAND_SPEECH }, 308 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 309 BTUSB_WIDEBAND_SPEECH }, 310 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 311 BTUSB_WIDEBAND_SPEECH }, 312 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 313 BTUSB_WIDEBAND_SPEECH }, 314 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 315 BTUSB_WIDEBAND_SPEECH }, 316 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 317 BTUSB_WIDEBAND_SPEECH }, 318 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 319 BTUSB_WIDEBAND_SPEECH }, 320 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 321 BTUSB_WIDEBAND_SPEECH }, 322 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 323 BTUSB_WIDEBAND_SPEECH }, 324 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH }, 326 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 327 BTUSB_WIDEBAND_SPEECH }, 328 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 329 BTUSB_WIDEBAND_SPEECH }, 330 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH }, 332 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 333 BTUSB_WIDEBAND_SPEECH }, 334 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 335 BTUSB_WIDEBAND_SPEECH }, 336 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH }, 338 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 339 BTUSB_WIDEBAND_SPEECH }, 340 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 341 BTUSB_WIDEBAND_SPEECH }, 342 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH }, 344 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 345 BTUSB_WIDEBAND_SPEECH }, 346 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 347 BTUSB_WIDEBAND_SPEECH }, 348 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH }, 350 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 351 BTUSB_WIDEBAND_SPEECH }, 352 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 353 BTUSB_WIDEBAND_SPEECH }, 354 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH }, 356 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 357 BTUSB_WIDEBAND_SPEECH }, 358 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 359 BTUSB_WIDEBAND_SPEECH }, 360 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH }, 362 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 363 BTUSB_WIDEBAND_SPEECH }, 364 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 365 BTUSB_WIDEBAND_SPEECH }, 366 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH }, 368 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 369 BTUSB_WIDEBAND_SPEECH }, 370 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 371 BTUSB_WIDEBAND_SPEECH }, 372 { USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH }, 374 375 /* QCA WCN785x chipset */ 376 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 377 BTUSB_WIDEBAND_SPEECH }, 378 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 | 379 BTUSB_WIDEBAND_SPEECH }, 380 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 | 381 BTUSB_WIDEBAND_SPEECH }, 382 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 | 383 BTUSB_WIDEBAND_SPEECH }, 384 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH }, 386 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 | 387 BTUSB_WIDEBAND_SPEECH }, 388 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 | 389 BTUSB_WIDEBAND_SPEECH }, 390 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH }, 392 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 | 393 BTUSB_WIDEBAND_SPEECH }, 394 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 | 395 BTUSB_WIDEBAND_SPEECH }, 396 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH }, 398 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 | 399 BTUSB_WIDEBAND_SPEECH }, 400 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 | 401 BTUSB_WIDEBAND_SPEECH }, 402 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH }, 404 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 | 405 BTUSB_WIDEBAND_SPEECH }, 406 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 | 407 BTUSB_WIDEBAND_SPEECH }, 408 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 | 409 BTUSB_WIDEBAND_SPEECH }, 410 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 | 411 BTUSB_WIDEBAND_SPEECH }, 412 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 | 413 BTUSB_WIDEBAND_SPEECH }, 414 415 /* Broadcom BCM2035 */ 416 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 417 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 418 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 420 /* Broadcom BCM2045 */ 421 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 424 /* IBM/Lenovo ThinkPad with Broadcom chip */ 425 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 426 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 427 428 /* HP laptop with Broadcom chip */ 429 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 430 431 /* Dell laptop with Broadcom chip */ 432 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 434 /* Dell Wireless 370 and 410 devices */ 435 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 438 /* Belkin F8T012 and F8T013 devices */ 439 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 441 442 /* Asus WL-BTD202 device */ 443 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 444 445 /* Kensington Bluetooth USB adapter */ 446 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 447 448 /* RTX Telecom based adapters with buggy SCO support */ 449 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 450 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 451 452 /* CONWISE Technology based adapters with buggy SCO support */ 453 { USB_DEVICE(0x0e5e, 0x6622), 454 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 455 456 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 457 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 458 459 /* Digianswer devices */ 460 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 461 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 462 463 /* CSR BlueCore Bluetooth Sniffer */ 464 { USB_DEVICE(0x0a12, 0x0002), 465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 466 467 /* Frontline ComProbe Bluetooth Sniffer */ 468 { USB_DEVICE(0x16d3, 0x0002), 469 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 470 471 /* Marvell Bluetooth devices */ 472 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 473 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 474 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 475 476 /* Intel Bluetooth devices */ 477 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 480 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 481 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 482 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 483 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 484 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 485 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 486 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED }, 487 { USB_DEVICE(0x8087, 0x0040), .driver_info = BTUSB_INTEL_COMBINED }, /* Lizard Peak 2 */ 488 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 489 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 490 BTUSB_INTEL_NO_WBS_SUPPORT | 491 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 492 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 493 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 494 BTUSB_INTEL_NO_WBS_SUPPORT | 495 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 496 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 497 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 498 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 499 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 500 501 /* Other Intel Bluetooth devices */ 502 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 503 .driver_info = BTUSB_IGNORE }, 504 505 /* Realtek 8821CE Bluetooth devices */ 506 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 507 BTUSB_WIDEBAND_SPEECH }, 508 { USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK | 509 BTUSB_WIDEBAND_SPEECH }, 510 511 /* Realtek 8822CE Bluetooth devices */ 512 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 513 BTUSB_WIDEBAND_SPEECH }, 514 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 515 BTUSB_WIDEBAND_SPEECH }, 516 517 /* Realtek 8822CU Bluetooth devices */ 518 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 519 BTUSB_WIDEBAND_SPEECH }, 520 521 /* Realtek 8851BE Bluetooth devices */ 522 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK }, 523 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, 524 { USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK }, 525 { USB_DEVICE(0x0489, 0xe112), .driver_info = BTUSB_REALTEK | 526 BTUSB_WIDEBAND_SPEECH }, 527 528 /* Realtek 8851BU Bluetooth devices */ 529 { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK | 530 BTUSB_WIDEBAND_SPEECH }, 531 { USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK | 532 BTUSB_WIDEBAND_SPEECH }, 533 { USB_DEVICE(0x7392, 0xe611), .driver_info = BTUSB_REALTEK | 534 BTUSB_WIDEBAND_SPEECH }, 535 { USB_DEVICE(0x2c4e, 0x0128), .driver_info = BTUSB_REALTEK | 536 BTUSB_WIDEBAND_SPEECH }, 537 538 /* Realtek 8852AE Bluetooth devices */ 539 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 540 BTUSB_WIDEBAND_SPEECH }, 541 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 542 BTUSB_WIDEBAND_SPEECH }, 543 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 544 BTUSB_WIDEBAND_SPEECH }, 545 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 546 BTUSB_WIDEBAND_SPEECH }, 547 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 548 BTUSB_WIDEBAND_SPEECH }, 549 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 550 BTUSB_WIDEBAND_SPEECH }, 551 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 552 BTUSB_WIDEBAND_SPEECH }, 553 554 /* Realtek 8852CE Bluetooth devices */ 555 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 556 BTUSB_WIDEBAND_SPEECH }, 557 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 558 BTUSB_WIDEBAND_SPEECH }, 559 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 560 BTUSB_WIDEBAND_SPEECH }, 561 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 562 BTUSB_WIDEBAND_SPEECH }, 563 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 564 BTUSB_WIDEBAND_SPEECH }, 565 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 566 BTUSB_WIDEBAND_SPEECH }, 567 { USB_DEVICE(0x13d3, 0x3612), .driver_info = BTUSB_REALTEK | 568 BTUSB_WIDEBAND_SPEECH }, 569 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 570 BTUSB_WIDEBAND_SPEECH }, 571 572 /* Realtek 8852BE Bluetooth devices */ 573 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 574 BTUSB_WIDEBAND_SPEECH }, 575 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 576 BTUSB_WIDEBAND_SPEECH }, 577 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 578 BTUSB_WIDEBAND_SPEECH }, 579 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 580 BTUSB_WIDEBAND_SPEECH }, 581 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 582 BTUSB_WIDEBAND_SPEECH }, 583 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 584 BTUSB_WIDEBAND_SPEECH }, 585 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 586 BTUSB_WIDEBAND_SPEECH }, 587 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 588 BTUSB_WIDEBAND_SPEECH }, 589 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 590 BTUSB_WIDEBAND_SPEECH }, 591 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 592 BTUSB_WIDEBAND_SPEECH }, 593 594 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 595 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 596 BTUSB_WIDEBAND_SPEECH }, 597 { USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK | 598 BTUSB_WIDEBAND_SPEECH }, 599 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK | 600 BTUSB_WIDEBAND_SPEECH }, 601 { USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK | 602 BTUSB_WIDEBAND_SPEECH }, 603 604 /* Realtek 8922AE Bluetooth devices */ 605 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK | 606 BTUSB_WIDEBAND_SPEECH }, 607 { USB_DEVICE(0x0bda, 0xd922), .driver_info = BTUSB_REALTEK | 608 BTUSB_WIDEBAND_SPEECH }, 609 { USB_DEVICE(0x0bda, 0xd923), .driver_info = BTUSB_REALTEK | 610 BTUSB_WIDEBAND_SPEECH }, 611 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK | 612 BTUSB_WIDEBAND_SPEECH }, 613 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK | 614 BTUSB_WIDEBAND_SPEECH }, 615 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK | 616 BTUSB_WIDEBAND_SPEECH }, 617 618 /* Realtek Bluetooth devices */ 619 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 620 .driver_info = BTUSB_REALTEK }, 621 622 /* MediaTek Bluetooth devices */ 623 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 624 .driver_info = BTUSB_MEDIATEK | 625 BTUSB_WIDEBAND_SPEECH }, 626 627 /* Additional MediaTek MT7615E Bluetooth devices */ 628 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 629 630 /* Additional MediaTek MT7663 Bluetooth devices */ 631 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 632 BTUSB_WIDEBAND_SPEECH }, 633 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 634 BTUSB_WIDEBAND_SPEECH }, 635 636 /* Additional MediaTek MT7668 Bluetooth devices */ 637 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 638 BTUSB_WIDEBAND_SPEECH }, 639 640 /* Additional MediaTek MT7920 Bluetooth devices */ 641 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK | 642 BTUSB_WIDEBAND_SPEECH }, 643 { USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK | 644 BTUSB_WIDEBAND_SPEECH }, 645 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK | 646 BTUSB_WIDEBAND_SPEECH }, 647 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK | 648 BTUSB_WIDEBAND_SPEECH }, 649 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK | 650 BTUSB_WIDEBAND_SPEECH }, 651 { USB_DEVICE(0x0489, 0xe158), .driver_info = BTUSB_MEDIATEK | 652 BTUSB_WIDEBAND_SPEECH }, 653 654 /* Additional MediaTek MT7921 Bluetooth devices */ 655 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 656 BTUSB_WIDEBAND_SPEECH }, 657 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 658 BTUSB_WIDEBAND_SPEECH }, 659 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 660 BTUSB_WIDEBAND_SPEECH }, 661 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 662 BTUSB_WIDEBAND_SPEECH }, 663 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 664 BTUSB_WIDEBAND_SPEECH }, 665 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 666 BTUSB_WIDEBAND_SPEECH }, 667 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 668 BTUSB_WIDEBAND_SPEECH }, 669 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 670 BTUSB_WIDEBAND_SPEECH }, 671 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 672 BTUSB_WIDEBAND_SPEECH }, 673 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK | 674 BTUSB_WIDEBAND_SPEECH }, 675 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 676 BTUSB_WIDEBAND_SPEECH }, 677 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 678 BTUSB_WIDEBAND_SPEECH }, 679 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 680 BTUSB_WIDEBAND_SPEECH }, 681 /* MediaTek MT7902 Bluetooth devices */ 682 { USB_DEVICE(0x0e8d, 0x1ede), .driver_info = BTUSB_MEDIATEK | 683 BTUSB_WIDEBAND_SPEECH }, 684 { USB_DEVICE(0x13d3, 0x3579), .driver_info = BTUSB_MEDIATEK | 685 BTUSB_WIDEBAND_SPEECH }, 686 { USB_DEVICE(0x13d3, 0x3580), .driver_info = BTUSB_MEDIATEK | 687 BTUSB_WIDEBAND_SPEECH }, 688 { USB_DEVICE(0x13d3, 0x3594), .driver_info = BTUSB_MEDIATEK | 689 BTUSB_WIDEBAND_SPEECH }, 690 { USB_DEVICE(0x13d3, 0x3596), .driver_info = BTUSB_MEDIATEK | 691 BTUSB_WIDEBAND_SPEECH }, 692 /* MediaTek MT7922 Bluetooth devices */ 693 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 694 BTUSB_WIDEBAND_SPEECH }, 695 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK | 696 BTUSB_WIDEBAND_SPEECH }, 697 698 /* MediaTek MT7922A Bluetooth devices */ 699 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 700 BTUSB_WIDEBAND_SPEECH }, 701 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 702 BTUSB_WIDEBAND_SPEECH }, 703 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 704 BTUSB_WIDEBAND_SPEECH }, 705 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 706 BTUSB_WIDEBAND_SPEECH }, 707 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 708 BTUSB_WIDEBAND_SPEECH }, 709 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 710 BTUSB_WIDEBAND_SPEECH }, 711 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 712 BTUSB_WIDEBAND_SPEECH }, 713 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 714 BTUSB_WIDEBAND_SPEECH }, 715 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 716 BTUSB_WIDEBAND_SPEECH }, 717 { USB_DEVICE(0x0489, 0xe11d), .driver_info = BTUSB_MEDIATEK | 718 BTUSB_WIDEBAND_SPEECH }, 719 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK | 720 BTUSB_WIDEBAND_SPEECH }, 721 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK | 722 BTUSB_WIDEBAND_SPEECH }, 723 { USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK | 724 BTUSB_WIDEBAND_SPEECH }, 725 { USB_DEVICE(0x0489, 0xe174), .driver_info = BTUSB_MEDIATEK | 726 BTUSB_WIDEBAND_SPEECH }, 727 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 728 BTUSB_WIDEBAND_SPEECH }, 729 { USB_DEVICE(0x04ca, 0x3807), .driver_info = BTUSB_MEDIATEK | 730 BTUSB_WIDEBAND_SPEECH }, 731 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 732 BTUSB_WIDEBAND_SPEECH }, 733 { USB_DEVICE(0x0e8d, 0x223c), .driver_info = BTUSB_MEDIATEK | 734 BTUSB_WIDEBAND_SPEECH }, 735 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 736 BTUSB_WIDEBAND_SPEECH }, 737 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK | 738 BTUSB_WIDEBAND_SPEECH }, 739 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 740 BTUSB_WIDEBAND_SPEECH }, 741 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 742 BTUSB_WIDEBAND_SPEECH }, 743 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 744 BTUSB_WIDEBAND_SPEECH }, 745 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 746 BTUSB_WIDEBAND_SPEECH }, 747 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK | 748 BTUSB_WIDEBAND_SPEECH }, 749 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 750 BTUSB_WIDEBAND_SPEECH }, 751 752 /* Additional MediaTek MT7925 Bluetooth devices */ 753 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 754 BTUSB_WIDEBAND_SPEECH }, 755 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 756 BTUSB_WIDEBAND_SPEECH }, 757 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK | 758 BTUSB_WIDEBAND_SPEECH }, 759 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK | 760 BTUSB_WIDEBAND_SPEECH }, 761 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK | 762 BTUSB_WIDEBAND_SPEECH }, 763 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK | 764 BTUSB_WIDEBAND_SPEECH }, 765 { USB_DEVICE(0x0489, 0xe13a), .driver_info = BTUSB_MEDIATEK | 766 BTUSB_WIDEBAND_SPEECH }, 767 { USB_DEVICE(0x0489, 0xe0fa), .driver_info = BTUSB_MEDIATEK | 768 BTUSB_WIDEBAND_SPEECH }, 769 { USB_DEVICE(0x0489, 0xe10f), .driver_info = BTUSB_MEDIATEK | 770 BTUSB_WIDEBAND_SPEECH }, 771 { USB_DEVICE(0x0489, 0xe110), .driver_info = BTUSB_MEDIATEK | 772 BTUSB_WIDEBAND_SPEECH }, 773 { USB_DEVICE(0x0489, 0xe116), .driver_info = BTUSB_MEDIATEK | 774 BTUSB_WIDEBAND_SPEECH }, 775 { USB_DEVICE(0x13d3, 0x3588), .driver_info = BTUSB_MEDIATEK | 776 BTUSB_WIDEBAND_SPEECH }, 777 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK | 778 BTUSB_WIDEBAND_SPEECH }, 779 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK | 780 BTUSB_WIDEBAND_SPEECH }, 781 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK | 782 BTUSB_WIDEBAND_SPEECH }, 783 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK | 784 BTUSB_WIDEBAND_SPEECH }, 785 { USB_DEVICE(0x0e8d, 0x8c38), .driver_info = BTUSB_MEDIATEK | 786 BTUSB_WIDEBAND_SPEECH }, 787 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 788 BTUSB_WIDEBAND_SPEECH }, 789 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 790 BTUSB_WIDEBAND_SPEECH }, 791 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK | 792 BTUSB_WIDEBAND_SPEECH }, 793 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK | 794 BTUSB_WIDEBAND_SPEECH }, 795 { USB_DEVICE(0x13d3, 0x3609), .driver_info = BTUSB_MEDIATEK | 796 BTUSB_WIDEBAND_SPEECH }, 797 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK | 798 BTUSB_WIDEBAND_SPEECH }, 799 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK | 800 BTUSB_WIDEBAND_SPEECH }, 801 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK | 802 BTUSB_WIDEBAND_SPEECH }, 803 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK | 804 BTUSB_WIDEBAND_SPEECH }, 805 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK | 806 BTUSB_WIDEBAND_SPEECH }, 807 808 /* Additional Realtek 8723AE Bluetooth devices */ 809 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 810 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 811 812 /* Additional Realtek 8723BE Bluetooth devices */ 813 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 814 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 815 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 816 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 817 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 818 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 819 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 820 821 /* Additional Realtek 8723BU Bluetooth devices */ 822 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 823 { USB_DEVICE(0x2c0a, 0x8761), .driver_info = BTUSB_REALTEK }, 824 825 /* Additional Realtek 8723DE Bluetooth devices */ 826 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 827 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 828 829 /* Additional Realtek 8761BUV Bluetooth devices */ 830 { USB_DEVICE(0x2c4e, 0x0115), .driver_info = BTUSB_REALTEK | 831 BTUSB_WIDEBAND_SPEECH }, 832 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 833 BTUSB_WIDEBAND_SPEECH }, 834 { USB_DEVICE(0x2357, 0x0607), .driver_info = BTUSB_REALTEK | 835 BTUSB_WIDEBAND_SPEECH }, 836 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 837 BTUSB_WIDEBAND_SPEECH }, 838 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 839 BTUSB_WIDEBAND_SPEECH }, 840 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 841 BTUSB_WIDEBAND_SPEECH }, 842 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 843 BTUSB_WIDEBAND_SPEECH }, 844 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 845 BTUSB_WIDEBAND_SPEECH }, 846 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 847 BTUSB_WIDEBAND_SPEECH }, 848 { USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK | 849 BTUSB_WIDEBAND_SPEECH }, 850 { USB_DEVICE(0x37ad, 0x0600), .driver_info = BTUSB_REALTEK | 851 BTUSB_WIDEBAND_SPEECH }, 852 853 /* Additional Realtek 8821AE Bluetooth devices */ 854 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 855 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 856 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 857 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 858 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 859 860 /* Additional Realtek 8822BE Bluetooth devices */ 861 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 862 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 863 864 /* Additional Realtek 8822CE Bluetooth devices */ 865 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 866 BTUSB_WIDEBAND_SPEECH }, 867 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 868 BTUSB_WIDEBAND_SPEECH }, 869 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 870 BTUSB_WIDEBAND_SPEECH }, 871 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 872 BTUSB_WIDEBAND_SPEECH }, 873 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 874 BTUSB_WIDEBAND_SPEECH }, 875 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 876 BTUSB_WIDEBAND_SPEECH }, 877 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 878 BTUSB_WIDEBAND_SPEECH }, 879 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 880 BTUSB_WIDEBAND_SPEECH }, 881 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 882 BTUSB_WIDEBAND_SPEECH }, 883 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 884 BTUSB_WIDEBAND_SPEECH }, 885 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 886 BTUSB_WIDEBAND_SPEECH }, 887 888 /* Barrot Technology Bluetooth devices */ 889 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT }, 890 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT }, 891 892 /* Actions Semiconductor ATS2851 based devices */ 893 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 894 895 /* Silicon Wave based devices */ 896 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 897 898 { } /* Terminating entry */ 899 }; 900 901 /* The Bluetooth USB module build into some devices needs to be reset on resume, 902 * this is a problem with the platform (likely shutting off all power) not with 903 * the module itself. So we use a DMI list to match known broken platforms. 904 */ 905 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 906 { 907 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 908 .matches = { 909 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 910 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 911 }, 912 }, 913 { 914 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 915 .matches = { 916 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 917 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 918 }, 919 }, 920 { 921 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 922 .matches = { 923 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 924 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 925 }, 926 }, 927 {} 928 }; 929 930 struct qca_dump_info { 931 /* fields for dump collection */ 932 u16 id_vendor; 933 u16 id_product; 934 u32 fw_version; 935 u32 controller_id; 936 u32 ram_dump_size; 937 u16 ram_dump_seqno; 938 }; 939 940 #define BTUSB_MAX_ISOC_FRAMES 10 941 942 #define BTUSB_INTR_RUNNING 0 943 #define BTUSB_BULK_RUNNING 1 944 #define BTUSB_ISOC_RUNNING 2 945 #define BTUSB_SUSPENDING 3 946 #define BTUSB_DID_ISO_RESUME 4 947 #define BTUSB_BOOTLOADER 5 948 #define BTUSB_DOWNLOADING 6 949 #define BTUSB_FIRMWARE_LOADED 7 950 #define BTUSB_FIRMWARE_FAILED 8 951 #define BTUSB_BOOTING 9 952 #define BTUSB_DIAG_RUNNING 10 953 #define BTUSB_OOB_WAKE_ENABLED 11 954 #define BTUSB_HW_RESET_ACTIVE 12 955 #define BTUSB_TX_WAIT_VND_EVT 13 956 #define BTUSB_WAKEUP_AUTOSUSPEND 14 957 #define BTUSB_USE_ALT3_FOR_WBS 15 958 #define BTUSB_ALT6_CONTINUOUS_TX 16 959 #define BTUSB_HW_SSR_ACTIVE 17 960 961 struct btusb_data { 962 struct hci_dev *hdev; 963 struct usb_device *udev; 964 struct usb_interface *intf; 965 struct usb_interface *isoc; 966 struct usb_interface *diag; 967 unsigned isoc_ifnum; 968 969 unsigned long flags; 970 971 bool poll_sync; 972 int intr_interval; 973 struct work_struct work; 974 struct work_struct waker; 975 struct delayed_work rx_work; 976 977 struct sk_buff_head acl_q; 978 979 struct usb_anchor deferred; 980 struct usb_anchor tx_anchor; 981 int tx_in_flight; 982 spinlock_t txlock; 983 984 struct usb_anchor intr_anchor; 985 struct usb_anchor bulk_anchor; 986 struct usb_anchor isoc_anchor; 987 struct usb_anchor diag_anchor; 988 struct usb_anchor ctrl_anchor; 989 spinlock_t rxlock; 990 991 struct sk_buff *evt_skb; 992 struct sk_buff *acl_skb; 993 struct sk_buff *sco_skb; 994 995 struct usb_endpoint_descriptor *intr_ep; 996 struct usb_endpoint_descriptor *bulk_tx_ep; 997 struct usb_endpoint_descriptor *bulk_rx_ep; 998 struct usb_endpoint_descriptor *isoc_tx_ep; 999 struct usb_endpoint_descriptor *isoc_rx_ep; 1000 struct usb_endpoint_descriptor *diag_tx_ep; 1001 struct usb_endpoint_descriptor *diag_rx_ep; 1002 1003 struct gpio_desc *reset_gpio; 1004 1005 __u8 cmdreq_type; 1006 __u8 cmdreq; 1007 1008 unsigned int sco_num; 1009 unsigned int air_mode; 1010 bool usb_alt6_packet_flow; 1011 int isoc_altsetting; 1012 int suspend_count; 1013 1014 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 1015 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 1016 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 1017 1018 int (*setup_on_usb)(struct hci_dev *hdev); 1019 1020 int (*suspend)(struct hci_dev *hdev); 1021 int (*resume)(struct hci_dev *hdev); 1022 int (*disconnect)(struct hci_dev *hdev); 1023 1024 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 1025 1026 struct qca_dump_info qca_dump; 1027 }; 1028 1029 static void btusb_reset(struct hci_dev *hdev) 1030 { 1031 struct btusb_data *data; 1032 int err; 1033 1034 data = hci_get_drvdata(hdev); 1035 /* This is not an unbalanced PM reference since the device will reset */ 1036 err = usb_autopm_get_interface(data->intf); 1037 if (err) { 1038 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 1039 return; 1040 } 1041 1042 bt_dev_err(hdev, "Resetting usb device."); 1043 usb_queue_reset_device(data->intf); 1044 } 1045 1046 static void btusb_intel_reset(struct hci_dev *hdev) 1047 { 1048 struct btusb_data *data = hci_get_drvdata(hdev); 1049 struct gpio_desc *reset_gpio = data->reset_gpio; 1050 struct btintel_data *intel_data = hci_get_priv(hdev); 1051 1052 if (intel_data->acpi_reset_method) { 1053 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 1054 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 1055 return; 1056 } 1057 1058 bt_dev_err(hdev, "Initiating acpi reset method"); 1059 /* If ACPI reset method fails, lets try with legacy GPIO 1060 * toggling 1061 */ 1062 if (!intel_data->acpi_reset_method(hdev)) { 1063 return; 1064 } 1065 } 1066 1067 if (!reset_gpio) { 1068 btusb_reset(hdev); 1069 return; 1070 } 1071 1072 /* 1073 * Toggle the hard reset line if the platform provides one. The reset 1074 * is going to yank the device off the USB and then replug. So doing 1075 * once is enough. The cleanup is handled correctly on the way out 1076 * (standard USB disconnect), and the new device is detected cleanly 1077 * and bound to the driver again like it should be. 1078 */ 1079 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1080 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1081 return; 1082 } 1083 1084 bt_dev_err(hdev, "Initiating HW reset via gpio"); 1085 gpiod_set_value_cansleep(reset_gpio, 1); 1086 msleep(100); 1087 gpiod_set_value_cansleep(reset_gpio, 0); 1088 } 1089 1090 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 1091 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 1092 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 1093 1094 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 1095 1096 struct rtk_dev_coredump_hdr { 1097 u8 type; 1098 u8 code; 1099 u8 reserved[2]; 1100 } __packed; 1101 1102 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 1103 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 1104 { 1105 struct sk_buff *skb; 1106 1107 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 1108 if (!skb) 1109 return; 1110 1111 skb_put_data(skb, hdr, sizeof(*hdr)); 1112 if (len) 1113 skb_put_data(skb, buf, len); 1114 1115 if (!hci_devcd_init(hdev, skb->len)) { 1116 hci_devcd_append(hdev, skb); 1117 hci_devcd_complete(hdev); 1118 } else { 1119 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 1120 kfree_skb(skb); 1121 } 1122 } 1123 1124 static void btusb_rtl_reset(struct hci_dev *hdev) 1125 { 1126 struct btusb_data *data = hci_get_drvdata(hdev); 1127 struct gpio_desc *reset_gpio = data->reset_gpio; 1128 struct rtk_dev_coredump_hdr hdr = { 1129 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1130 }; 1131 1132 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1133 1134 if (!reset_gpio) { 1135 btusb_reset(hdev); 1136 return; 1137 } 1138 1139 /* Toggle the hard reset line. The Realtek device is going to 1140 * yank itself off the USB and then replug. The cleanup is handled 1141 * correctly on the way out (standard USB disconnect), and the new 1142 * device is detected cleanly and bound to the driver again like 1143 * it should be. 1144 */ 1145 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1146 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1147 return; 1148 } 1149 1150 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1151 gpiod_set_value_cansleep(reset_gpio, 1); 1152 msleep(200); 1153 gpiod_set_value_cansleep(reset_gpio, 0); 1154 } 1155 1156 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1157 { 1158 struct rtk_dev_coredump_hdr hdr = { 1159 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1160 .code = code, 1161 }; 1162 1163 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1164 1165 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1166 } 1167 1168 static void btusb_qca_reset(struct hci_dev *hdev) 1169 { 1170 struct btusb_data *data = hci_get_drvdata(hdev); 1171 struct gpio_desc *reset_gpio = data->reset_gpio; 1172 1173 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1174 bt_dev_info(hdev, "Ramdump in progress, defer reset"); 1175 return; 1176 } 1177 1178 if (reset_gpio) { 1179 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1180 1181 /* Toggle the hard reset line. The qca bt device is going to 1182 * yank itself off the USB and then replug. The cleanup is handled 1183 * correctly on the way out (standard USB disconnect), and the new 1184 * device is detected cleanly and bound to the driver again like 1185 * it should be. 1186 */ 1187 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1188 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1189 return; 1190 } 1191 1192 gpiod_set_value_cansleep(reset_gpio, 0); 1193 msleep(200); 1194 gpiod_set_value_cansleep(reset_gpio, 1); 1195 1196 return; 1197 } 1198 1199 btusb_reset(hdev); 1200 } 1201 1202 static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb) 1203 { 1204 /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug 1205 * packets as ACL frames with connection handle 0x2EDC. These are not real 1206 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent 1207 * "ACL packet for unknown connection handle 3804" errors. 1208 */ 1209 if (skb->len >= 2) { 1210 u16 handle = get_unaligned_le16(skb->data); 1211 1212 if (handle == 0x2EDC) 1213 return HCI_DIAG_PKT; 1214 } 1215 1216 /* Use default packet type for other packets */ 1217 return hci_skb_pkt_type(skb); 1218 } 1219 1220 static inline void btusb_free_frags(struct btusb_data *data) 1221 { 1222 unsigned long flags; 1223 1224 spin_lock_irqsave(&data->rxlock, flags); 1225 1226 dev_kfree_skb_irq(data->evt_skb); 1227 data->evt_skb = NULL; 1228 1229 dev_kfree_skb_irq(data->acl_skb); 1230 data->acl_skb = NULL; 1231 1232 dev_kfree_skb_irq(data->sco_skb); 1233 data->sco_skb = NULL; 1234 1235 spin_unlock_irqrestore(&data->rxlock, flags); 1236 } 1237 1238 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1239 { 1240 if (data->intr_interval) { 1241 /* Trigger dequeue immediately if an event is received */ 1242 schedule_delayed_work(&data->rx_work, 0); 1243 } 1244 1245 return data->recv_event(data->hdev, skb); 1246 } 1247 1248 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1249 { 1250 struct sk_buff *skb; 1251 unsigned long flags; 1252 int err = 0; 1253 1254 spin_lock_irqsave(&data->rxlock, flags); 1255 skb = data->evt_skb; 1256 1257 while (count) { 1258 int len; 1259 1260 if (!skb) { 1261 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1262 if (!skb) { 1263 err = -ENOMEM; 1264 break; 1265 } 1266 1267 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1268 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1269 } 1270 1271 len = min_t(uint, hci_skb_expect(skb), count); 1272 skb_put_data(skb, buffer, len); 1273 1274 count -= len; 1275 buffer += len; 1276 hci_skb_expect(skb) -= len; 1277 1278 if (skb->len == HCI_EVENT_HDR_SIZE) { 1279 /* Complete event header */ 1280 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1281 1282 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1283 kfree_skb(skb); 1284 skb = NULL; 1285 1286 err = -EILSEQ; 1287 break; 1288 } 1289 } 1290 1291 if (!hci_skb_expect(skb)) { 1292 /* Each chunk should correspond to at least 1 or more 1293 * events so if there are still bytes left that doesn't 1294 * constitute a new event this is likely a bug in the 1295 * controller. 1296 */ 1297 if (count && count < HCI_EVENT_HDR_SIZE) { 1298 bt_dev_warn(data->hdev, 1299 "Unexpected continuation: %d bytes", 1300 count); 1301 count = 0; 1302 } 1303 1304 /* Complete frame */ 1305 btusb_recv_event(data, skb); 1306 skb = NULL; 1307 } 1308 } 1309 1310 data->evt_skb = skb; 1311 spin_unlock_irqrestore(&data->rxlock, flags); 1312 1313 return err; 1314 } 1315 1316 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1317 { 1318 /* Only queue ACL packet if intr_interval is set as it means 1319 * force_poll_sync has been enabled. 1320 */ 1321 if (!data->intr_interval) 1322 return data->recv_acl(data->hdev, skb); 1323 1324 skb_queue_tail(&data->acl_q, skb); 1325 schedule_delayed_work(&data->rx_work, data->intr_interval); 1326 1327 return 0; 1328 } 1329 1330 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1331 { 1332 struct sk_buff *skb; 1333 unsigned long flags; 1334 int err = 0; 1335 1336 spin_lock_irqsave(&data->rxlock, flags); 1337 skb = data->acl_skb; 1338 1339 while (count) { 1340 int len; 1341 1342 if (!skb) { 1343 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1344 if (!skb) { 1345 err = -ENOMEM; 1346 break; 1347 } 1348 1349 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1350 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1351 } 1352 1353 len = min_t(uint, hci_skb_expect(skb), count); 1354 skb_put_data(skb, buffer, len); 1355 1356 count -= len; 1357 buffer += len; 1358 hci_skb_expect(skb) -= len; 1359 1360 if (skb->len == HCI_ACL_HDR_SIZE) { 1361 __le16 dlen = hci_acl_hdr(skb)->dlen; 1362 1363 /* Complete ACL header */ 1364 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1365 1366 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1367 kfree_skb(skb); 1368 skb = NULL; 1369 1370 err = -EILSEQ; 1371 break; 1372 } 1373 } 1374 1375 if (!hci_skb_expect(skb)) { 1376 /* Complete frame */ 1377 btusb_recv_acl(data, skb); 1378 skb = NULL; 1379 } 1380 } 1381 1382 data->acl_skb = skb; 1383 spin_unlock_irqrestore(&data->rxlock, flags); 1384 1385 return err; 1386 } 1387 1388 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1389 struct hci_sco_hdr *hdr) 1390 { 1391 __u16 handle; 1392 1393 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1394 // Can't validate, userspace controls everything. 1395 return true; 1396 1397 /* 1398 * USB isochronous transfers are not designed to be reliable and may 1399 * lose fragments. When this happens, the next first fragment 1400 * encountered might actually be a continuation fragment. 1401 * Validate the handle to detect it and drop it, or else the upper 1402 * layer will get garbage for a while. 1403 */ 1404 1405 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1406 1407 switch (hci_conn_lookup_type(hdev, handle)) { 1408 case SCO_LINK: 1409 case ESCO_LINK: 1410 return true; 1411 default: 1412 return false; 1413 } 1414 } 1415 1416 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1417 { 1418 struct sk_buff *skb; 1419 unsigned long flags; 1420 int err = 0; 1421 1422 spin_lock_irqsave(&data->rxlock, flags); 1423 skb = data->sco_skb; 1424 1425 while (count) { 1426 int len; 1427 1428 if (!skb) { 1429 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1430 if (!skb) { 1431 err = -ENOMEM; 1432 break; 1433 } 1434 1435 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1436 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1437 } 1438 1439 len = min_t(uint, hci_skb_expect(skb), count); 1440 skb_put_data(skb, buffer, len); 1441 1442 count -= len; 1443 buffer += len; 1444 hci_skb_expect(skb) -= len; 1445 1446 if (skb->len == HCI_SCO_HDR_SIZE) { 1447 /* Complete SCO header */ 1448 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1449 1450 hci_skb_expect(skb) = hdr->dlen; 1451 1452 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1453 !btusb_validate_sco_handle(data->hdev, hdr)) { 1454 kfree_skb(skb); 1455 skb = NULL; 1456 1457 err = -EILSEQ; 1458 break; 1459 } 1460 } 1461 1462 if (!hci_skb_expect(skb)) { 1463 /* Complete frame */ 1464 hci_recv_frame(data->hdev, skb); 1465 skb = NULL; 1466 } 1467 } 1468 1469 data->sco_skb = skb; 1470 spin_unlock_irqrestore(&data->rxlock, flags); 1471 1472 return err; 1473 } 1474 1475 static void btusb_intr_complete(struct urb *urb) 1476 { 1477 struct hci_dev *hdev = urb->context; 1478 struct btusb_data *data = hci_get_drvdata(hdev); 1479 int err; 1480 1481 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1482 urb->actual_length); 1483 1484 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1485 return; 1486 1487 if (urb->status == 0) { 1488 hdev->stat.byte_rx += urb->actual_length; 1489 1490 if (btusb_recv_intr(data, urb->transfer_buffer, 1491 urb->actual_length) < 0) { 1492 bt_dev_err(hdev, "corrupted event packet"); 1493 hdev->stat.err_rx++; 1494 } 1495 } else if (urb->status == -ENOENT) { 1496 /* Avoid suspend failed when usb_kill_urb */ 1497 return; 1498 } 1499 1500 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1501 return; 1502 1503 usb_mark_last_busy(data->udev); 1504 usb_anchor_urb(urb, &data->intr_anchor); 1505 1506 err = usb_submit_urb(urb, GFP_ATOMIC); 1507 if (err < 0) { 1508 /* -EPERM: urb is being killed; 1509 * -ENODEV: device got disconnected 1510 */ 1511 if (err != -EPERM && err != -ENODEV) 1512 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1513 urb, -err); 1514 if (err != -EPERM) 1515 hci_cmd_sync_cancel(hdev, -err); 1516 usb_unanchor_urb(urb); 1517 } 1518 } 1519 1520 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1521 { 1522 struct btusb_data *data = hci_get_drvdata(hdev); 1523 struct urb *urb; 1524 unsigned char *buf; 1525 unsigned int pipe; 1526 int err, size; 1527 1528 BT_DBG("%s", hdev->name); 1529 1530 if (!data->intr_ep) 1531 return -ENODEV; 1532 1533 urb = usb_alloc_urb(0, mem_flags); 1534 if (!urb) 1535 return -ENOMEM; 1536 1537 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1538 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1539 /* Fake CSR devices don't seem to support sort-transter */ 1540 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1541 else 1542 /* Use maximum HCI Event size so the USB stack handles 1543 * ZPL/short-transfer automatically. 1544 */ 1545 size = HCI_MAX_EVENT_SIZE; 1546 1547 buf = kmalloc(size, mem_flags); 1548 if (!buf) { 1549 usb_free_urb(urb); 1550 return -ENOMEM; 1551 } 1552 1553 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1554 1555 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1556 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1557 1558 urb->transfer_flags |= URB_FREE_BUFFER; 1559 1560 usb_anchor_urb(urb, &data->intr_anchor); 1561 1562 err = usb_submit_urb(urb, mem_flags); 1563 if (err < 0) { 1564 if (err != -EPERM && err != -ENODEV) 1565 bt_dev_err(hdev, "urb %p submission failed (%d)", 1566 urb, -err); 1567 if (err != -EPERM) 1568 hci_cmd_sync_cancel(hdev, -err); 1569 usb_unanchor_urb(urb); 1570 } 1571 1572 /* Only initialize intr_interval if URB poll sync is enabled */ 1573 if (!data->poll_sync) 1574 goto done; 1575 1576 /* The units are frames (milliseconds) for full and low speed devices, 1577 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1578 * devices. 1579 * 1580 * This is done once on open/resume so it shouldn't change even if 1581 * force_poll_sync changes. 1582 */ 1583 switch (urb->dev->speed) { 1584 case USB_SPEED_SUPER_PLUS: 1585 case USB_SPEED_SUPER: /* units are 125us */ 1586 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1587 break; 1588 default: 1589 data->intr_interval = msecs_to_jiffies(urb->interval); 1590 break; 1591 } 1592 1593 done: 1594 usb_free_urb(urb); 1595 1596 return err; 1597 } 1598 1599 static void btusb_bulk_complete(struct urb *urb) 1600 { 1601 struct hci_dev *hdev = urb->context; 1602 struct btusb_data *data = hci_get_drvdata(hdev); 1603 int err; 1604 1605 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1606 urb->actual_length); 1607 1608 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1609 return; 1610 1611 if (urb->status == 0) { 1612 hdev->stat.byte_rx += urb->actual_length; 1613 1614 if (data->recv_bulk(data, urb->transfer_buffer, 1615 urb->actual_length) < 0) { 1616 bt_dev_err(hdev, "corrupted ACL packet"); 1617 hdev->stat.err_rx++; 1618 } 1619 } else if (urb->status == -ENOENT) { 1620 /* Avoid suspend failed when usb_kill_urb */ 1621 return; 1622 } 1623 1624 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1625 return; 1626 1627 usb_anchor_urb(urb, &data->bulk_anchor); 1628 usb_mark_last_busy(data->udev); 1629 1630 err = usb_submit_urb(urb, GFP_ATOMIC); 1631 if (err < 0) { 1632 /* -EPERM: urb is being killed; 1633 * -ENODEV: device got disconnected 1634 */ 1635 if (err != -EPERM && err != -ENODEV) 1636 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1637 urb, -err); 1638 usb_unanchor_urb(urb); 1639 } 1640 } 1641 1642 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1643 { 1644 struct btusb_data *data = hci_get_drvdata(hdev); 1645 struct urb *urb; 1646 unsigned char *buf; 1647 unsigned int pipe; 1648 int err, size = HCI_MAX_FRAME_SIZE; 1649 1650 BT_DBG("%s", hdev->name); 1651 1652 if (!data->bulk_rx_ep) 1653 return -ENODEV; 1654 1655 urb = usb_alloc_urb(0, mem_flags); 1656 if (!urb) 1657 return -ENOMEM; 1658 1659 buf = kmalloc(size, mem_flags); 1660 if (!buf) { 1661 usb_free_urb(urb); 1662 return -ENOMEM; 1663 } 1664 1665 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1666 1667 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1668 btusb_bulk_complete, hdev); 1669 1670 urb->transfer_flags |= URB_FREE_BUFFER; 1671 1672 usb_mark_last_busy(data->udev); 1673 usb_anchor_urb(urb, &data->bulk_anchor); 1674 1675 err = usb_submit_urb(urb, mem_flags); 1676 if (err < 0) { 1677 if (err != -EPERM && err != -ENODEV) 1678 bt_dev_err(hdev, "urb %p submission failed (%d)", 1679 urb, -err); 1680 usb_unanchor_urb(urb); 1681 } 1682 1683 usb_free_urb(urb); 1684 1685 return err; 1686 } 1687 1688 static void btusb_isoc_complete(struct urb *urb) 1689 { 1690 struct hci_dev *hdev = urb->context; 1691 struct btusb_data *data = hci_get_drvdata(hdev); 1692 int i, err; 1693 1694 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1695 urb->actual_length); 1696 1697 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1698 return; 1699 1700 if (urb->status == 0) { 1701 for (i = 0; i < urb->number_of_packets; i++) { 1702 unsigned int offset = urb->iso_frame_desc[i].offset; 1703 unsigned int length = urb->iso_frame_desc[i].actual_length; 1704 1705 if (urb->iso_frame_desc[i].status) 1706 continue; 1707 1708 hdev->stat.byte_rx += length; 1709 1710 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1711 length) < 0) { 1712 bt_dev_err(hdev, "corrupted SCO packet"); 1713 hdev->stat.err_rx++; 1714 } 1715 } 1716 } else if (urb->status == -ENOENT) { 1717 /* Avoid suspend failed when usb_kill_urb */ 1718 return; 1719 } 1720 1721 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1722 return; 1723 1724 usb_anchor_urb(urb, &data->isoc_anchor); 1725 1726 err = usb_submit_urb(urb, GFP_ATOMIC); 1727 if (err < 0) { 1728 /* -EPERM: urb is being killed; 1729 * -ENODEV: device got disconnected 1730 */ 1731 if (err != -EPERM && err != -ENODEV) 1732 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1733 urb, -err); 1734 usb_unanchor_urb(urb); 1735 } 1736 } 1737 1738 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1739 int mtu, struct btusb_data *data) 1740 { 1741 int i = 0, offset = 0; 1742 unsigned int interval; 1743 1744 BT_DBG("len %d mtu %d", len, mtu); 1745 1746 /* For mSBC ALT 6 settings some chips need to transmit the data 1747 * continuously without the zero length of USB packets. 1748 */ 1749 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1750 goto ignore_usb_alt6_packet_flow; 1751 1752 /* For mSBC ALT 6 setting the host will send the packet at continuous 1753 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1754 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1755 * To maintain the rate we send 63bytes of usb packets alternatively for 1756 * 7ms and 8ms to maintain the rate as 7.5ms. 1757 */ 1758 if (data->usb_alt6_packet_flow) { 1759 interval = 7; 1760 data->usb_alt6_packet_flow = false; 1761 } else { 1762 interval = 6; 1763 data->usb_alt6_packet_flow = true; 1764 } 1765 1766 for (i = 0; i < interval; i++) { 1767 urb->iso_frame_desc[i].offset = offset; 1768 urb->iso_frame_desc[i].length = offset; 1769 } 1770 1771 ignore_usb_alt6_packet_flow: 1772 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1773 urb->iso_frame_desc[i].offset = offset; 1774 urb->iso_frame_desc[i].length = len; 1775 i++; 1776 } 1777 1778 urb->number_of_packets = i; 1779 } 1780 1781 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1782 { 1783 int i, offset = 0; 1784 1785 BT_DBG("len %d mtu %d", len, mtu); 1786 1787 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1788 i++, offset += mtu, len -= mtu) { 1789 urb->iso_frame_desc[i].offset = offset; 1790 urb->iso_frame_desc[i].length = mtu; 1791 } 1792 1793 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1794 urb->iso_frame_desc[i].offset = offset; 1795 urb->iso_frame_desc[i].length = len; 1796 i++; 1797 } 1798 1799 urb->number_of_packets = i; 1800 } 1801 1802 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1803 { 1804 struct btusb_data *data = hci_get_drvdata(hdev); 1805 struct urb *urb; 1806 unsigned char *buf; 1807 unsigned int pipe; 1808 int err, size; 1809 1810 BT_DBG("%s", hdev->name); 1811 1812 if (!data->isoc_rx_ep) 1813 return -ENODEV; 1814 1815 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1816 if (!urb) 1817 return -ENOMEM; 1818 1819 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1820 BTUSB_MAX_ISOC_FRAMES; 1821 1822 buf = kmalloc(size, mem_flags); 1823 if (!buf) { 1824 usb_free_urb(urb); 1825 return -ENOMEM; 1826 } 1827 1828 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1829 1830 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1831 hdev, data->isoc_rx_ep->bInterval); 1832 1833 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1834 1835 __fill_isoc_descriptor(urb, size, 1836 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1837 1838 usb_anchor_urb(urb, &data->isoc_anchor); 1839 1840 err = usb_submit_urb(urb, mem_flags); 1841 if (err < 0) { 1842 if (err != -EPERM && err != -ENODEV) 1843 bt_dev_err(hdev, "urb %p submission failed (%d)", 1844 urb, -err); 1845 usb_unanchor_urb(urb); 1846 } 1847 1848 usb_free_urb(urb); 1849 1850 return err; 1851 } 1852 1853 static void btusb_diag_complete(struct urb *urb) 1854 { 1855 struct hci_dev *hdev = urb->context; 1856 struct btusb_data *data = hci_get_drvdata(hdev); 1857 int err; 1858 1859 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1860 urb->actual_length); 1861 1862 if (urb->status == 0) { 1863 struct sk_buff *skb; 1864 1865 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1866 if (skb) { 1867 skb_put_data(skb, urb->transfer_buffer, 1868 urb->actual_length); 1869 hci_recv_diag(hdev, skb); 1870 } 1871 } else if (urb->status == -ENOENT) { 1872 /* Avoid suspend failed when usb_kill_urb */ 1873 return; 1874 } 1875 1876 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1877 return; 1878 1879 usb_anchor_urb(urb, &data->diag_anchor); 1880 usb_mark_last_busy(data->udev); 1881 1882 err = usb_submit_urb(urb, GFP_ATOMIC); 1883 if (err < 0) { 1884 /* -EPERM: urb is being killed; 1885 * -ENODEV: device got disconnected 1886 */ 1887 if (err != -EPERM && err != -ENODEV) 1888 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1889 urb, -err); 1890 usb_unanchor_urb(urb); 1891 } 1892 } 1893 1894 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1895 { 1896 struct btusb_data *data = hci_get_drvdata(hdev); 1897 struct urb *urb; 1898 unsigned char *buf; 1899 unsigned int pipe; 1900 int err, size = HCI_MAX_FRAME_SIZE; 1901 1902 BT_DBG("%s", hdev->name); 1903 1904 if (!data->diag_rx_ep) 1905 return -ENODEV; 1906 1907 urb = usb_alloc_urb(0, mem_flags); 1908 if (!urb) 1909 return -ENOMEM; 1910 1911 buf = kmalloc(size, mem_flags); 1912 if (!buf) { 1913 usb_free_urb(urb); 1914 return -ENOMEM; 1915 } 1916 1917 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1918 1919 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1920 btusb_diag_complete, hdev); 1921 1922 urb->transfer_flags |= URB_FREE_BUFFER; 1923 1924 usb_mark_last_busy(data->udev); 1925 usb_anchor_urb(urb, &data->diag_anchor); 1926 1927 err = usb_submit_urb(urb, mem_flags); 1928 if (err < 0) { 1929 if (err != -EPERM && err != -ENODEV) 1930 bt_dev_err(hdev, "urb %p submission failed (%d)", 1931 urb, -err); 1932 usb_unanchor_urb(urb); 1933 } 1934 1935 usb_free_urb(urb); 1936 1937 return err; 1938 } 1939 1940 static void btusb_tx_complete(struct urb *urb) 1941 { 1942 struct sk_buff *skb = urb->context; 1943 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1944 struct btusb_data *data = hci_get_drvdata(hdev); 1945 unsigned long flags; 1946 1947 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1948 urb->actual_length); 1949 1950 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1951 goto done; 1952 1953 if (!urb->status) { 1954 hdev->stat.byte_tx += urb->transfer_buffer_length; 1955 } else { 1956 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1957 hci_cmd_sync_cancel(hdev, -urb->status); 1958 hdev->stat.err_tx++; 1959 } 1960 1961 done: 1962 spin_lock_irqsave(&data->txlock, flags); 1963 data->tx_in_flight--; 1964 spin_unlock_irqrestore(&data->txlock, flags); 1965 1966 kfree(urb->setup_packet); 1967 1968 kfree_skb(skb); 1969 } 1970 1971 static void btusb_isoc_tx_complete(struct urb *urb) 1972 { 1973 struct sk_buff *skb = urb->context; 1974 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1975 1976 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1977 urb->actual_length); 1978 1979 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1980 goto done; 1981 1982 if (!urb->status) 1983 hdev->stat.byte_tx += urb->transfer_buffer_length; 1984 else 1985 hdev->stat.err_tx++; 1986 1987 done: 1988 kfree(urb->setup_packet); 1989 1990 kfree_skb(skb); 1991 } 1992 1993 static int btusb_open(struct hci_dev *hdev) 1994 { 1995 struct btusb_data *data = hci_get_drvdata(hdev); 1996 int err; 1997 1998 BT_DBG("%s", hdev->name); 1999 2000 err = usb_autopm_get_interface(data->intf); 2001 if (err < 0) 2002 return err; 2003 2004 /* Patching USB firmware files prior to starting any URBs of HCI path 2005 * It is more safe to use USB bulk channel for downloading USB patch 2006 */ 2007 if (data->setup_on_usb) { 2008 err = data->setup_on_usb(hdev); 2009 if (err < 0) 2010 goto setup_fail; 2011 } 2012 2013 data->intf->needs_remote_wakeup = 1; 2014 2015 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 2016 goto done; 2017 2018 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 2019 if (err < 0) 2020 goto failed; 2021 2022 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2023 if (err < 0) { 2024 usb_kill_anchored_urbs(&data->intr_anchor); 2025 goto failed; 2026 } 2027 2028 set_bit(BTUSB_BULK_RUNNING, &data->flags); 2029 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2030 2031 if (data->diag) { 2032 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 2033 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 2034 } 2035 2036 done: 2037 usb_autopm_put_interface(data->intf); 2038 return 0; 2039 2040 failed: 2041 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2042 setup_fail: 2043 usb_autopm_put_interface(data->intf); 2044 return err; 2045 } 2046 2047 static void btusb_stop_traffic(struct btusb_data *data) 2048 { 2049 usb_kill_anchored_urbs(&data->intr_anchor); 2050 usb_kill_anchored_urbs(&data->bulk_anchor); 2051 usb_kill_anchored_urbs(&data->isoc_anchor); 2052 usb_kill_anchored_urbs(&data->diag_anchor); 2053 usb_kill_anchored_urbs(&data->ctrl_anchor); 2054 } 2055 2056 static int btusb_close(struct hci_dev *hdev) 2057 { 2058 struct btusb_data *data = hci_get_drvdata(hdev); 2059 int err; 2060 2061 BT_DBG("%s", hdev->name); 2062 2063 cancel_delayed_work(&data->rx_work); 2064 cancel_work_sync(&data->work); 2065 cancel_work_sync(&data->waker); 2066 2067 skb_queue_purge(&data->acl_q); 2068 2069 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2070 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 2071 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2072 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 2073 2074 btusb_stop_traffic(data); 2075 btusb_free_frags(data); 2076 2077 err = usb_autopm_get_interface(data->intf); 2078 if (err < 0) 2079 goto failed; 2080 2081 data->intf->needs_remote_wakeup = 0; 2082 2083 /* Enable remote wake up for auto-suspend */ 2084 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 2085 data->intf->needs_remote_wakeup = 1; 2086 2087 usb_autopm_put_interface(data->intf); 2088 2089 failed: 2090 usb_scuttle_anchored_urbs(&data->deferred); 2091 return 0; 2092 } 2093 2094 static int btusb_flush(struct hci_dev *hdev) 2095 { 2096 struct btusb_data *data = hci_get_drvdata(hdev); 2097 2098 BT_DBG("%s", hdev->name); 2099 2100 cancel_delayed_work(&data->rx_work); 2101 2102 skb_queue_purge(&data->acl_q); 2103 2104 usb_kill_anchored_urbs(&data->tx_anchor); 2105 btusb_free_frags(data); 2106 2107 return 0; 2108 } 2109 2110 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 2111 { 2112 struct btusb_data *data = hci_get_drvdata(hdev); 2113 struct usb_ctrlrequest *dr; 2114 struct urb *urb; 2115 unsigned int pipe; 2116 2117 urb = usb_alloc_urb(0, GFP_KERNEL); 2118 if (!urb) 2119 return ERR_PTR(-ENOMEM); 2120 2121 dr = kmalloc_obj(*dr); 2122 if (!dr) { 2123 usb_free_urb(urb); 2124 return ERR_PTR(-ENOMEM); 2125 } 2126 2127 dr->bRequestType = data->cmdreq_type; 2128 dr->bRequest = data->cmdreq; 2129 dr->wIndex = 0; 2130 dr->wValue = 0; 2131 dr->wLength = __cpu_to_le16(skb->len); 2132 2133 pipe = usb_sndctrlpipe(data->udev, 0x00); 2134 2135 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2136 skb->data, skb->len, btusb_tx_complete, skb); 2137 2138 skb->dev = (void *)hdev; 2139 2140 return urb; 2141 } 2142 2143 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2144 { 2145 struct btusb_data *data = hci_get_drvdata(hdev); 2146 struct urb *urb; 2147 unsigned int pipe; 2148 2149 if (!data->bulk_tx_ep) 2150 return ERR_PTR(-ENODEV); 2151 2152 urb = usb_alloc_urb(0, GFP_KERNEL); 2153 if (!urb) 2154 return ERR_PTR(-ENOMEM); 2155 2156 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2157 2158 usb_fill_bulk_urb(urb, data->udev, pipe, 2159 skb->data, skb->len, btusb_tx_complete, skb); 2160 2161 skb->dev = (void *)hdev; 2162 2163 return urb; 2164 } 2165 2166 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2167 { 2168 struct btusb_data *data = hci_get_drvdata(hdev); 2169 struct urb *urb; 2170 unsigned int pipe; 2171 2172 if (!data->isoc_tx_ep) 2173 return ERR_PTR(-ENODEV); 2174 2175 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2176 if (!urb) 2177 return ERR_PTR(-ENOMEM); 2178 2179 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2180 2181 usb_fill_int_urb(urb, data->udev, pipe, 2182 skb->data, skb->len, btusb_isoc_tx_complete, 2183 skb, data->isoc_tx_ep->bInterval); 2184 2185 urb->transfer_flags = URB_ISO_ASAP; 2186 2187 if (data->isoc_altsetting == 6) 2188 __fill_isoc_descriptor_msbc(urb, skb->len, 2189 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2190 data); 2191 else 2192 __fill_isoc_descriptor(urb, skb->len, 2193 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2194 skb->dev = (void *)hdev; 2195 2196 return urb; 2197 } 2198 2199 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2200 { 2201 struct btusb_data *data = hci_get_drvdata(hdev); 2202 int err; 2203 2204 usb_anchor_urb(urb, &data->tx_anchor); 2205 2206 err = usb_submit_urb(urb, GFP_KERNEL); 2207 if (err < 0) { 2208 if (err != -EPERM && err != -ENODEV) 2209 bt_dev_err(hdev, "urb %p submission failed (%d)", 2210 urb, -err); 2211 kfree(urb->setup_packet); 2212 usb_unanchor_urb(urb); 2213 } else { 2214 usb_mark_last_busy(data->udev); 2215 } 2216 2217 usb_free_urb(urb); 2218 return err; 2219 } 2220 2221 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2222 { 2223 struct btusb_data *data = hci_get_drvdata(hdev); 2224 unsigned long flags; 2225 bool suspending; 2226 2227 spin_lock_irqsave(&data->txlock, flags); 2228 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2229 if (!suspending) 2230 data->tx_in_flight++; 2231 spin_unlock_irqrestore(&data->txlock, flags); 2232 2233 if (!suspending) 2234 return submit_tx_urb(hdev, urb); 2235 2236 usb_anchor_urb(urb, &data->deferred); 2237 schedule_work(&data->waker); 2238 2239 usb_free_urb(urb); 2240 return 0; 2241 } 2242 2243 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2244 { 2245 struct urb *urb; 2246 2247 BT_DBG("%s", hdev->name); 2248 2249 switch (hci_skb_pkt_type(skb)) { 2250 case HCI_COMMAND_PKT: 2251 urb = alloc_ctrl_urb(hdev, skb); 2252 if (IS_ERR(urb)) 2253 return PTR_ERR(urb); 2254 2255 hdev->stat.cmd_tx++; 2256 return submit_or_queue_tx_urb(hdev, urb); 2257 2258 case HCI_ACLDATA_PKT: 2259 urb = alloc_bulk_urb(hdev, skb); 2260 if (IS_ERR(urb)) 2261 return PTR_ERR(urb); 2262 2263 hdev->stat.acl_tx++; 2264 return submit_or_queue_tx_urb(hdev, urb); 2265 2266 case HCI_SCODATA_PKT: 2267 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2268 hci_conn_num(hdev, SCO_LINK) < 1) 2269 return -ENODEV; 2270 2271 urb = alloc_isoc_urb(hdev, skb); 2272 if (IS_ERR(urb)) 2273 return PTR_ERR(urb); 2274 2275 hdev->stat.sco_tx++; 2276 return submit_tx_urb(hdev, urb); 2277 2278 case HCI_ISODATA_PKT: 2279 urb = alloc_bulk_urb(hdev, skb); 2280 if (IS_ERR(urb)) 2281 return PTR_ERR(urb); 2282 2283 return submit_or_queue_tx_urb(hdev, urb); 2284 } 2285 2286 return -EILSEQ; 2287 } 2288 2289 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2290 { 2291 struct btusb_data *data = hci_get_drvdata(hdev); 2292 2293 BT_DBG("%s evt %d", hdev->name, evt); 2294 2295 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2296 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2297 data->air_mode = evt; 2298 schedule_work(&data->work); 2299 } 2300 } 2301 2302 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2303 { 2304 struct btusb_data *data = hci_get_drvdata(hdev); 2305 struct usb_interface *intf = data->isoc; 2306 struct usb_endpoint_descriptor *ep_desc; 2307 int i, err; 2308 2309 if (!data->isoc) 2310 return -ENODEV; 2311 2312 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2313 if (err < 0) { 2314 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2315 return err; 2316 } 2317 2318 data->isoc_altsetting = altsetting; 2319 2320 data->isoc_tx_ep = NULL; 2321 data->isoc_rx_ep = NULL; 2322 2323 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2324 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2325 2326 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2327 data->isoc_tx_ep = ep_desc; 2328 continue; 2329 } 2330 2331 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2332 data->isoc_rx_ep = ep_desc; 2333 continue; 2334 } 2335 } 2336 2337 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2338 bt_dev_err(hdev, "invalid SCO descriptors"); 2339 return -ENODEV; 2340 } 2341 2342 return 0; 2343 } 2344 2345 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2346 { 2347 struct btusb_data *data = hci_get_drvdata(hdev); 2348 int err; 2349 2350 if (data->isoc_altsetting != new_alts) { 2351 unsigned long flags; 2352 2353 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2354 usb_kill_anchored_urbs(&data->isoc_anchor); 2355 2356 /* When isochronous alternate setting needs to be 2357 * changed, because SCO connection has been added 2358 * or removed, a packet fragment may be left in the 2359 * reassembling state. This could lead to wrongly 2360 * assembled fragments. 2361 * 2362 * Clear outstanding fragment when selecting a new 2363 * alternate setting. 2364 */ 2365 spin_lock_irqsave(&data->rxlock, flags); 2366 dev_kfree_skb_irq(data->sco_skb); 2367 data->sco_skb = NULL; 2368 spin_unlock_irqrestore(&data->rxlock, flags); 2369 2370 err = __set_isoc_interface(hdev, new_alts); 2371 if (err < 0) 2372 return err; 2373 } 2374 2375 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2376 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2377 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2378 else 2379 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2380 } 2381 2382 return 0; 2383 } 2384 2385 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2386 int alt) 2387 { 2388 struct usb_interface *intf = data->isoc; 2389 int i; 2390 2391 BT_DBG("Looking for Alt no :%d", alt); 2392 2393 if (!intf) 2394 return NULL; 2395 2396 for (i = 0; i < intf->num_altsetting; i++) { 2397 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2398 return &intf->altsetting[i]; 2399 } 2400 2401 return NULL; 2402 } 2403 2404 static void btusb_work(struct work_struct *work) 2405 { 2406 struct btusb_data *data = container_of(work, struct btusb_data, work); 2407 struct hci_dev *hdev = data->hdev; 2408 int new_alts = 0; 2409 int err; 2410 2411 if (data->sco_num > 0) { 2412 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2413 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2414 if (err < 0) { 2415 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2416 usb_kill_anchored_urbs(&data->isoc_anchor); 2417 return; 2418 } 2419 2420 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2421 } 2422 2423 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2424 if (hdev->voice_setting & 0x0020) { 2425 static const int alts[3] = { 2, 4, 5 }; 2426 unsigned int sco_idx; 2427 2428 sco_idx = min_t(unsigned int, data->sco_num - 1, 2429 ARRAY_SIZE(alts) - 1); 2430 new_alts = alts[sco_idx]; 2431 } else { 2432 new_alts = data->sco_num; 2433 } 2434 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2435 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2436 * many adapters do not support it. Alt 1 appears to 2437 * work for all adapters that do not have alt 6, and 2438 * which work with WBS at all. Some devices prefer 2439 * alt 3 (HCI payload >= 60 Bytes let air packet 2440 * data satisfy 60 bytes), requiring 2441 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2442 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2443 */ 2444 if (btusb_find_altsetting(data, 6)) 2445 new_alts = 6; 2446 else if (btusb_find_altsetting(data, 3) && 2447 hdev->sco_mtu >= 72 && 2448 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2449 new_alts = 3; 2450 else 2451 new_alts = 1; 2452 } 2453 2454 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2455 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2456 } else { 2457 usb_kill_anchored_urbs(&data->isoc_anchor); 2458 2459 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2460 __set_isoc_interface(hdev, 0); 2461 2462 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2463 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2464 } 2465 } 2466 2467 static void btusb_waker(struct work_struct *work) 2468 { 2469 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2470 int err; 2471 2472 err = usb_autopm_get_interface(data->intf); 2473 if (err < 0) 2474 return; 2475 2476 usb_autopm_put_interface(data->intf); 2477 } 2478 2479 static void btusb_rx_work(struct work_struct *work) 2480 { 2481 struct btusb_data *data = container_of(work, struct btusb_data, 2482 rx_work.work); 2483 struct sk_buff *skb; 2484 2485 /* Dequeue ACL data received during the interval */ 2486 while ((skb = skb_dequeue(&data->acl_q))) 2487 data->recv_acl(data->hdev, skb); 2488 } 2489 2490 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2491 { 2492 struct sk_buff *skb; 2493 u8 val = 0x00; 2494 2495 BT_DBG("%s", hdev->name); 2496 2497 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2498 if (IS_ERR(skb)) 2499 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2500 else 2501 kfree_skb(skb); 2502 2503 return 0; 2504 } 2505 2506 static int btusb_setup_csr(struct hci_dev *hdev) 2507 { 2508 struct btusb_data *data = hci_get_drvdata(hdev); 2509 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2510 struct hci_rp_read_local_version *rp; 2511 struct sk_buff *skb; 2512 bool is_fake = false; 2513 int ret; 2514 2515 BT_DBG("%s", hdev->name); 2516 2517 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2518 HCI_INIT_TIMEOUT); 2519 if (IS_ERR(skb)) { 2520 int err = PTR_ERR(skb); 2521 2522 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2523 return err; 2524 } 2525 2526 rp = skb_pull_data(skb, sizeof(*rp)); 2527 if (!rp) { 2528 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2529 kfree_skb(skb); 2530 return -EIO; 2531 } 2532 2533 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2534 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2535 2536 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2537 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2538 le16_to_cpu(rp->manufacturer)); 2539 2540 /* Detect a wide host of Chinese controllers that aren't CSR. 2541 * 2542 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2543 * 2544 * The main thing they have in common is that these are really popular low-cost 2545 * options that support newer Bluetooth versions but rely on heavy VID/PID 2546 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2547 * 2548 * We detect actual CSR devices by checking that the HCI manufacturer code 2549 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2550 * HCI rev values always match. As they both store the firmware number. 2551 */ 2552 if (le16_to_cpu(rp->manufacturer) != 10 || 2553 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2554 is_fake = true; 2555 2556 /* Known legit CSR firmware build numbers and their supported BT versions: 2557 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2558 * - 1.2 (0x2) -> 0x04d9, 0x0529 2559 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2560 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2561 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2562 * 2563 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2564 * support BT 1.1 only; so it's a dead giveaway when some 2565 * third-party BT 4.0 dongle reuses it. 2566 */ 2567 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2568 rp->hci_ver > BLUETOOTH_VER_1_1) 2569 is_fake = true; 2570 2571 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2572 rp->hci_ver > BLUETOOTH_VER_1_2) 2573 is_fake = true; 2574 2575 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2576 rp->hci_ver > BLUETOOTH_VER_2_0) 2577 is_fake = true; 2578 2579 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2580 rp->hci_ver > BLUETOOTH_VER_2_1) 2581 is_fake = true; 2582 2583 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2584 rp->hci_ver > BLUETOOTH_VER_4_0) 2585 is_fake = true; 2586 2587 /* Other clones which beat all the above checks */ 2588 else if (bcdDevice == 0x0134 && 2589 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2590 rp->hci_ver == BLUETOOTH_VER_2_0) 2591 is_fake = true; 2592 2593 if (is_fake) { 2594 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2595 2596 /* Generally these clones have big discrepancies between 2597 * advertised features and what's actually supported. 2598 * Probably will need to be expanded in the future; 2599 * without these the controller will lock up. 2600 */ 2601 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 2602 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 2603 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL); 2604 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER); 2605 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING); 2606 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE); 2607 2608 /* Clear the reset quirk since this is not an actual 2609 * early Bluetooth 1.1 device from CSR. 2610 */ 2611 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 2612 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 2613 2614 /* 2615 * Special workaround for these BT 4.0 chip clones, and potentially more: 2616 * 2617 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2618 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2619 * 2620 * These controllers are really messed-up. 2621 * 2622 * 1. Their bulk RX endpoint will never report any data unless 2623 * the device was suspended at least once (yes, really). 2624 * 2. They will not wakeup when autosuspended and receiving data 2625 * on their bulk RX endpoint from e.g. a keyboard or mouse 2626 * (IOW remote-wakeup support is broken for the bulk endpoint). 2627 * 2628 * To fix 1. enable runtime-suspend, force-suspend the 2629 * HCI and then wake-it up by disabling runtime-suspend. 2630 * 2631 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2632 * will still be autosuspended when it is not open. 2633 * 2634 * -- 2635 * 2636 * Because these are widespread problems we prefer generic solutions; so 2637 * apply this initialization quirk to every controller that gets here, 2638 * it should be harmless. The alternative is to not work at all. 2639 */ 2640 pm_runtime_allow(&data->udev->dev); 2641 2642 ret = pm_runtime_suspend(&data->udev->dev); 2643 if (ret >= 0) 2644 msleep(200); 2645 else 2646 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2647 2648 pm_runtime_forbid(&data->udev->dev); 2649 2650 device_set_wakeup_capable(&data->udev->dev, false); 2651 2652 /* Re-enable autosuspend if this was requested */ 2653 if (enable_autosuspend) 2654 usb_enable_autosuspend(data->udev); 2655 } 2656 2657 kfree_skb(skb); 2658 2659 return 0; 2660 } 2661 2662 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2663 { 2664 struct sk_buff *skb; 2665 struct hci_event_hdr *hdr; 2666 struct hci_ev_cmd_complete *evt; 2667 2668 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2669 if (!skb) 2670 return -ENOMEM; 2671 2672 hdr = skb_put(skb, sizeof(*hdr)); 2673 hdr->evt = HCI_EV_CMD_COMPLETE; 2674 hdr->plen = sizeof(*evt) + 1; 2675 2676 evt = skb_put(skb, sizeof(*evt)); 2677 evt->ncmd = 0x01; 2678 evt->opcode = cpu_to_le16(opcode); 2679 2680 skb_put_u8(skb, 0x00); 2681 2682 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2683 2684 return hci_recv_frame(hdev, skb); 2685 } 2686 2687 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2688 int count) 2689 { 2690 struct hci_dev *hdev = data->hdev; 2691 2692 /* When the device is in bootloader mode, then it can send 2693 * events via the bulk endpoint. These events are treated the 2694 * same way as the ones received from the interrupt endpoint. 2695 */ 2696 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2697 return btusb_recv_intr(data, buffer, count); 2698 2699 return btusb_recv_bulk(data, buffer, count); 2700 } 2701 2702 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2703 { 2704 struct urb *urb; 2705 2706 BT_DBG("%s", hdev->name); 2707 2708 switch (hci_skb_pkt_type(skb)) { 2709 case HCI_COMMAND_PKT: 2710 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2711 struct hci_command_hdr *cmd = (void *)skb->data; 2712 __u16 opcode = le16_to_cpu(cmd->opcode); 2713 2714 /* When in bootloader mode and the command 0xfc09 2715 * is received, it needs to be send down the 2716 * bulk endpoint. So allocate a bulk URB instead. 2717 */ 2718 if (opcode == 0xfc09) 2719 urb = alloc_bulk_urb(hdev, skb); 2720 else 2721 urb = alloc_ctrl_urb(hdev, skb); 2722 2723 /* When the BTINTEL_HCI_OP_RESET command is issued to 2724 * boot into the operational firmware, it will actually 2725 * not send a command complete event. To keep the flow 2726 * control working inject that event here. 2727 */ 2728 if (opcode == BTINTEL_HCI_OP_RESET) 2729 inject_cmd_complete(hdev, opcode); 2730 } else { 2731 urb = alloc_ctrl_urb(hdev, skb); 2732 } 2733 if (IS_ERR(urb)) 2734 return PTR_ERR(urb); 2735 2736 hdev->stat.cmd_tx++; 2737 return submit_or_queue_tx_urb(hdev, urb); 2738 2739 case HCI_ACLDATA_PKT: 2740 urb = alloc_bulk_urb(hdev, skb); 2741 if (IS_ERR(urb)) 2742 return PTR_ERR(urb); 2743 2744 hdev->stat.acl_tx++; 2745 return submit_or_queue_tx_urb(hdev, urb); 2746 2747 case HCI_SCODATA_PKT: 2748 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2749 hci_conn_num(hdev, SCO_LINK) < 1) 2750 return -ENODEV; 2751 2752 urb = alloc_isoc_urb(hdev, skb); 2753 if (IS_ERR(urb)) 2754 return PTR_ERR(urb); 2755 2756 hdev->stat.sco_tx++; 2757 return submit_tx_urb(hdev, urb); 2758 2759 case HCI_ISODATA_PKT: 2760 urb = alloc_bulk_urb(hdev, skb); 2761 if (IS_ERR(urb)) 2762 return PTR_ERR(urb); 2763 2764 return submit_or_queue_tx_urb(hdev, urb); 2765 } 2766 2767 return -EILSEQ; 2768 } 2769 2770 static int btusb_setup_realtek(struct hci_dev *hdev) 2771 { 2772 struct btusb_data *data = hci_get_drvdata(hdev); 2773 int ret; 2774 2775 ret = btrtl_setup_realtek(hdev); 2776 2777 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2778 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2779 2780 return ret; 2781 } 2782 2783 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2784 { 2785 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2786 struct rtk_dev_coredump_hdr hdr = { 2787 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2788 }; 2789 2790 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2791 skb->len); 2792 2793 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2794 kfree_skb(skb); 2795 2796 return 0; 2797 } 2798 2799 return hci_recv_frame(hdev, skb); 2800 } 2801 2802 static void btusb_mtk_claim_iso_intf(struct btusb_data *data) 2803 { 2804 struct btmtk_data *btmtk_data; 2805 int err; 2806 2807 if (!data->hdev) 2808 return; 2809 2810 btmtk_data = hci_get_priv(data->hdev); 2811 if (!btmtk_data) 2812 return; 2813 2814 if (!btmtk_data->isopkt_intf) { 2815 bt_dev_err(data->hdev, "Can't claim NULL iso interface"); 2816 return; 2817 } 2818 2819 /* 2820 * The function usb_driver_claim_interface() is documented to need 2821 * locks held if it's not called from a probe routine. The code here 2822 * is called from the hci_power_on workqueue, so grab the lock. 2823 */ 2824 device_lock(&btmtk_data->isopkt_intf->dev); 2825 err = usb_driver_claim_interface(&btusb_driver, 2826 btmtk_data->isopkt_intf, data); 2827 device_unlock(&btmtk_data->isopkt_intf->dev); 2828 if (err < 0) { 2829 btmtk_data->isopkt_intf = NULL; 2830 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err); 2831 return; 2832 } 2833 2834 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2835 init_usb_anchor(&btmtk_data->isopkt_anchor); 2836 } 2837 2838 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev) 2839 { 2840 struct btmtk_data *btmtk_data; 2841 2842 if (!hdev) 2843 return; 2844 2845 btmtk_data = hci_get_priv(hdev); 2846 if (!btmtk_data) 2847 return; 2848 2849 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2850 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); 2851 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); 2852 2853 if (btmtk_data->isopkt_skb) { 2854 dev_kfree_skb_irq(btmtk_data->isopkt_skb); 2855 btmtk_data->isopkt_skb = NULL; 2856 } 2857 2858 if (btmtk_data->isopkt_intf) { 2859 usb_set_intfdata(btmtk_data->isopkt_intf, NULL); 2860 usb_driver_release_interface(&btusb_driver, 2861 btmtk_data->isopkt_intf); 2862 btmtk_data->isopkt_intf = NULL; 2863 } 2864 } 2865 2866 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 2867 } 2868 2869 static int btusb_mtk_disconnect(struct hci_dev *hdev) 2870 { 2871 /* This function describes the specific additional steps taken by MediaTek 2872 * when Bluetooth usb driver's resume function is called. 2873 */ 2874 btusb_mtk_release_iso_intf(hdev); 2875 2876 return 0; 2877 } 2878 2879 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2880 { 2881 struct btusb_data *data = hci_get_drvdata(hdev); 2882 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2883 int err; 2884 2885 /* It's MediaTek specific bluetooth reset mechanism via USB */ 2886 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) { 2887 bt_dev_err(hdev, "last reset failed? Not resetting again"); 2888 return -EBUSY; 2889 } 2890 2891 err = usb_autopm_get_interface(data->intf); 2892 if (err < 0) 2893 return err; 2894 2895 /* Release MediaTek ISO data interface */ 2896 btusb_mtk_release_iso_intf(hdev); 2897 2898 btusb_stop_traffic(data); 2899 usb_kill_anchored_urbs(&data->tx_anchor); 2900 2901 /* Toggle the hard reset line. The MediaTek device is going to 2902 * yank itself off the USB and then replug. The cleanup is handled 2903 * correctly on the way out (standard USB disconnect), and the new 2904 * device is detected cleanly and bound to the driver again like 2905 * it should be. 2906 */ 2907 if (data->reset_gpio) { 2908 gpiod_set_value_cansleep(data->reset_gpio, 1); 2909 msleep(200); 2910 gpiod_set_value_cansleep(data->reset_gpio, 0); 2911 return 0; 2912 } 2913 2914 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); 2915 2916 usb_queue_reset_device(data->intf); 2917 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 2918 2919 return err; 2920 } 2921 2922 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb) 2923 { 2924 struct urb *urb; 2925 2926 BT_DBG("%s", hdev->name); 2927 2928 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) { 2929 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); 2930 if (IS_ERR(urb)) 2931 return PTR_ERR(urb); 2932 2933 return submit_or_queue_tx_urb(hdev, urb); 2934 } else { 2935 return btusb_send_frame(hdev, skb); 2936 } 2937 } 2938 2939 static int btusb_mtk_setup(struct hci_dev *hdev) 2940 { 2941 struct btusb_data *data = hci_get_drvdata(hdev); 2942 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 2943 2944 /* MediaTek WMT vendor cmd requiring below USB resources to 2945 * complete the handshake. 2946 */ 2947 btmtk_data->drv_name = btusb_driver.name; 2948 btmtk_data->intf = data->intf; 2949 btmtk_data->udev = data->udev; 2950 btmtk_data->ctrl_anchor = &data->ctrl_anchor; 2951 btmtk_data->reset_sync = btusb_mtk_reset; 2952 2953 /* Claim ISO data interface and endpoint */ 2954 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 2955 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); 2956 btusb_mtk_claim_iso_intf(data); 2957 } 2958 2959 return btmtk_usb_setup(hdev); 2960 } 2961 2962 static int btusb_mtk_shutdown(struct hci_dev *hdev) 2963 { 2964 int ret; 2965 2966 ret = btmtk_usb_shutdown(hdev); 2967 2968 /* Release MediaTek iso interface after shutdown */ 2969 btusb_mtk_release_iso_intf(hdev); 2970 2971 return ret; 2972 } 2973 2974 #ifdef CONFIG_PM 2975 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2976 static int marvell_config_oob_wake(struct hci_dev *hdev) 2977 { 2978 struct sk_buff *skb; 2979 struct btusb_data *data = hci_get_drvdata(hdev); 2980 struct device *dev = &data->udev->dev; 2981 u16 pin, gap, opcode; 2982 int ret; 2983 u8 cmd[5]; 2984 2985 /* Move on if no wakeup pin specified */ 2986 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2987 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2988 return 0; 2989 2990 /* Vendor specific command to configure a GPIO as wake-up pin */ 2991 opcode = hci_opcode_pack(0x3F, 0x59); 2992 cmd[0] = opcode & 0xFF; 2993 cmd[1] = opcode >> 8; 2994 cmd[2] = 2; /* length of parameters that follow */ 2995 cmd[3] = pin; 2996 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2997 2998 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2999 if (!skb) { 3000 bt_dev_err(hdev, "%s: No memory", __func__); 3001 return -ENOMEM; 3002 } 3003 3004 skb_put_data(skb, cmd, sizeof(cmd)); 3005 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3006 3007 ret = btusb_send_frame(hdev, skb); 3008 if (ret) { 3009 bt_dev_err(hdev, "%s: configuration failed", __func__); 3010 kfree_skb(skb); 3011 return ret; 3012 } 3013 3014 return 0; 3015 } 3016 #else 3017 static inline int marvell_config_oob_wake(struct hci_dev *hdev) 3018 { 3019 return 0; 3020 } 3021 #endif 3022 3023 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3024 const bdaddr_t *bdaddr) 3025 { 3026 struct sk_buff *skb; 3027 u8 buf[8]; 3028 long ret; 3029 3030 buf[0] = 0xfe; 3031 buf[1] = sizeof(bdaddr_t); 3032 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3033 3034 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3035 if (IS_ERR(skb)) { 3036 ret = PTR_ERR(skb); 3037 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3038 ret); 3039 return ret; 3040 } 3041 kfree_skb(skb); 3042 3043 return 0; 3044 } 3045 3046 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3047 const bdaddr_t *bdaddr) 3048 { 3049 struct sk_buff *skb; 3050 u8 buf[10]; 3051 long ret; 3052 3053 buf[0] = 0x01; 3054 buf[1] = 0x01; 3055 buf[2] = 0x00; 3056 buf[3] = sizeof(bdaddr_t); 3057 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3058 3059 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3060 if (IS_ERR(skb)) { 3061 ret = PTR_ERR(skb); 3062 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3063 return ret; 3064 } 3065 kfree_skb(skb); 3066 3067 return 0; 3068 } 3069 3070 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3071 const bdaddr_t *bdaddr) 3072 { 3073 struct sk_buff *skb; 3074 u8 buf[6]; 3075 long ret; 3076 3077 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3078 3079 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3080 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3081 if (IS_ERR(skb)) { 3082 ret = PTR_ERR(skb); 3083 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3084 return ret; 3085 } 3086 kfree_skb(skb); 3087 3088 return 0; 3089 } 3090 3091 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3092 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3093 #define QCA_MEMDUMP_VSE_CLASS 0x01 3094 #define QCA_MEMDUMP_MSG_TYPE 0x08 3095 #define QCA_MEMDUMP_PKT_SIZE 248 3096 #define QCA_LAST_SEQUENCE_NUM 0xffff 3097 3098 struct qca_dump_hdr { 3099 u8 vse_class; 3100 u8 msg_type; 3101 __le16 seqno; 3102 u8 reserved; 3103 union { 3104 u8 data[0]; 3105 struct { 3106 __le32 ram_dump_size; 3107 u8 data0[0]; 3108 } __packed; 3109 }; 3110 } __packed; 3111 3112 3113 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3114 { 3115 char buf[128]; 3116 struct btusb_data *btdata = hci_get_drvdata(hdev); 3117 3118 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3119 btdata->qca_dump.controller_id); 3120 skb_put_data(skb, buf, strlen(buf)); 3121 3122 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3123 btdata->qca_dump.fw_version); 3124 skb_put_data(skb, buf, strlen(buf)); 3125 3126 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3127 btusb_driver.name); 3128 skb_put_data(skb, buf, strlen(buf)); 3129 3130 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3131 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3132 skb_put_data(skb, buf, strlen(buf)); 3133 3134 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3135 hdev->lmp_subver); 3136 skb_put_data(skb, buf, strlen(buf)); 3137 } 3138 3139 static void btusb_coredump_qca(struct hci_dev *hdev) 3140 { 3141 int err; 3142 static const u8 param[] = { 0x26 }; 3143 3144 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3145 if (err < 0) 3146 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3147 } 3148 3149 /* Return: 0 on success, negative errno on failure. */ 3150 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3151 { 3152 int ret = 0; 3153 unsigned int skip = 0; 3154 u8 pkt_type; 3155 u16 seqno; 3156 u32 dump_size; 3157 3158 struct qca_dump_hdr *dump_hdr; 3159 struct btusb_data *btdata = hci_get_drvdata(hdev); 3160 struct usb_device *udev = btdata->udev; 3161 3162 pkt_type = hci_skb_pkt_type(skb); 3163 skip = sizeof(struct hci_event_hdr); 3164 if (pkt_type == HCI_ACLDATA_PKT) 3165 skip += sizeof(struct hci_acl_hdr); 3166 3167 skb_pull(skb, skip); 3168 dump_hdr = (struct qca_dump_hdr *)skb->data; 3169 3170 seqno = le16_to_cpu(dump_hdr->seqno); 3171 if (seqno == 0) { 3172 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3173 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3174 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3175 ret = -EILSEQ; 3176 bt_dev_err(hdev, "Invalid memdump size(%u)", 3177 dump_size); 3178 goto out; 3179 } 3180 3181 ret = hci_devcd_init(hdev, dump_size); 3182 if (ret < 0) { 3183 bt_dev_err(hdev, "memdump init error(%d)", ret); 3184 goto out; 3185 } 3186 3187 btdata->qca_dump.ram_dump_size = dump_size; 3188 btdata->qca_dump.ram_dump_seqno = 0; 3189 3190 skb_pull(skb, offsetof(struct qca_dump_hdr, data0)); 3191 3192 usb_disable_autosuspend(udev); 3193 bt_dev_info(hdev, "%s memdump size(%u)\n", 3194 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3195 dump_size); 3196 } else { 3197 skb_pull(skb, offsetof(struct qca_dump_hdr, data)); 3198 } 3199 3200 if (!btdata->qca_dump.ram_dump_size) { 3201 ret = -EINVAL; 3202 bt_dev_err(hdev, "memdump is not active"); 3203 goto out; 3204 } 3205 3206 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3207 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3208 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3209 bt_dev_err(hdev, 3210 "expected memdump seqno(%u) is not received(%u)\n", 3211 btdata->qca_dump.ram_dump_seqno, seqno); 3212 btdata->qca_dump.ram_dump_seqno = seqno; 3213 kfree_skb(skb); 3214 return ret; 3215 } 3216 3217 hci_devcd_append(hdev, skb); 3218 btdata->qca_dump.ram_dump_seqno++; 3219 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3220 bt_dev_info(hdev, 3221 "memdump done: pkts(%u), total(%u)\n", 3222 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3223 3224 hci_devcd_complete(hdev); 3225 goto out; 3226 } 3227 return ret; 3228 3229 out: 3230 if (btdata->qca_dump.ram_dump_size) 3231 usb_enable_autosuspend(udev); 3232 btdata->qca_dump.ram_dump_size = 0; 3233 btdata->qca_dump.ram_dump_seqno = 0; 3234 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3235 3236 if (ret < 0) 3237 kfree_skb(skb); 3238 return ret; 3239 } 3240 3241 /* Return: true if the ACL packet is a dump packet, false otherwise. */ 3242 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3243 { 3244 struct hci_event_hdr *event_hdr; 3245 struct hci_acl_hdr *acl_hdr; 3246 struct qca_dump_hdr *dump_hdr; 3247 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3248 bool is_dump = false; 3249 3250 if (!clone) 3251 return false; 3252 3253 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr)); 3254 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)) 3255 goto out; 3256 3257 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3258 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT)) 3259 goto out; 3260 3261 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3262 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3263 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3264 goto out; 3265 3266 is_dump = true; 3267 out: 3268 consume_skb(clone); 3269 return is_dump; 3270 } 3271 3272 /* Return: true if the event packet is a dump packet, false otherwise. */ 3273 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3274 { 3275 struct hci_event_hdr *event_hdr; 3276 struct qca_dump_hdr *dump_hdr; 3277 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3278 bool is_dump = false; 3279 3280 if (!clone) 3281 return false; 3282 3283 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3284 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT)) 3285 goto out; 3286 3287 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3288 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3289 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3290 goto out; 3291 3292 is_dump = true; 3293 out: 3294 consume_skb(clone); 3295 return is_dump; 3296 } 3297 3298 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3299 { 3300 if (acl_pkt_is_dump_qca(hdev, skb)) 3301 return handle_dump_pkt_qca(hdev, skb); 3302 return hci_recv_frame(hdev, skb); 3303 } 3304 3305 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3306 { 3307 if (evt_pkt_is_dump_qca(hdev, skb)) 3308 return handle_dump_pkt_qca(hdev, skb); 3309 return hci_recv_frame(hdev, skb); 3310 } 3311 3312 3313 #define QCA_DFU_PACKET_LEN 4096 3314 3315 #define QCA_GET_TARGET_VERSION 0x09 3316 #define QCA_CHECK_STATUS 0x05 3317 #define QCA_DFU_DOWNLOAD 0x01 3318 3319 #define QCA_SYSCFG_UPDATED 0x40 3320 #define QCA_PATCH_UPDATED 0x80 3321 #define QCA_DFU_TIMEOUT 3000 3322 #define QCA_FLAG_MULTI_NVM 0x80 3323 #define QCA_BT_RESET_WAIT_MS 100 3324 3325 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3326 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3327 3328 struct qca_version { 3329 __le32 rom_version; 3330 __le32 patch_version; 3331 __le32 ram_version; 3332 __u8 chip_id; 3333 __u8 platform_id; 3334 __le16 flag; 3335 __u8 reserved[4]; 3336 } __packed; 3337 3338 struct qca_rampatch_version { 3339 __le16 rom_version_high; 3340 __le16 rom_version_low; 3341 __le16 patch_version; 3342 } __packed; 3343 3344 struct qca_device_info { 3345 u32 rom_version; 3346 u8 rampatch_hdr; /* length of header in rampatch */ 3347 u8 nvm_hdr; /* length of header in NVM */ 3348 u8 ver_offset; /* offset of version structure in rampatch */ 3349 }; 3350 3351 struct qca_custom_firmware { 3352 u32 rom_version; 3353 u16 board_id; 3354 const char *subdirectory; 3355 }; 3356 3357 static const struct qca_device_info qca_devices_table[] = { 3358 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3359 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3360 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3361 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3362 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3363 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3364 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3365 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3366 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3367 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3368 }; 3369 3370 static const struct qca_custom_firmware qca_custom_btfws[] = { 3371 { 0x00130201, 0x030A, "QCA2066" }, 3372 { 0x00130201, 0x030B, "QCA2066" }, 3373 { }, 3374 }; 3375 3376 static u16 qca_extract_board_id(const struct qca_version *ver) 3377 { 3378 u16 flag = le16_to_cpu(ver->flag); 3379 u16 board_id = 0; 3380 3381 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3382 /* The board_id should be split into two bytes 3383 * The 1st byte is chip ID, and the 2nd byte is platform ID 3384 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3385 * we have several platforms, and platform IDs are continuously added 3386 * Platform ID: 3387 * 0x00 is for Mobile 3388 * 0x01 is for X86 3389 * 0x02 is for Automotive 3390 * 0x03 is for Consumer electronic 3391 */ 3392 board_id = (ver->chip_id << 8) + ver->platform_id; 3393 } 3394 3395 /* Take 0xffff as invalid board ID */ 3396 if (board_id == 0xffff) 3397 board_id = 0; 3398 3399 return board_id; 3400 } 3401 3402 static const char *qca_get_fw_subdirectory(const struct qca_version *ver) 3403 { 3404 const struct qca_custom_firmware *ptr; 3405 u32 rom_ver; 3406 u16 board_id; 3407 3408 rom_ver = le32_to_cpu(ver->rom_version); 3409 board_id = qca_extract_board_id(ver); 3410 if (!board_id) 3411 return NULL; 3412 3413 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) { 3414 if (ptr->rom_version == rom_ver && 3415 ptr->board_id == board_id) 3416 return ptr->subdirectory; 3417 } 3418 3419 return NULL; 3420 } 3421 3422 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3423 void *data, u16 size) 3424 { 3425 int pipe, err; 3426 u8 *buf; 3427 3428 buf = kmalloc(size, GFP_KERNEL); 3429 if (!buf) 3430 return -ENOMEM; 3431 3432 /* Found some of USB hosts have IOT issues with ours so that we should 3433 * not wait until HCI layer is ready. 3434 */ 3435 pipe = usb_rcvctrlpipe(udev, 0); 3436 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3437 0, 0, buf, size, USB_CTRL_GET_TIMEOUT); 3438 if (err < 0) { 3439 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3440 goto done; 3441 } 3442 3443 memcpy(data, buf, size); 3444 3445 done: 3446 kfree(buf); 3447 3448 return err; 3449 } 3450 3451 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3452 const struct firmware *firmware, 3453 size_t hdr_size) 3454 { 3455 struct btusb_data *btdata = hci_get_drvdata(hdev); 3456 struct usb_device *udev = btdata->udev; 3457 size_t count, size, sent = 0; 3458 int pipe, len, err; 3459 u8 *buf; 3460 3461 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3462 if (!buf) 3463 return -ENOMEM; 3464 3465 count = firmware->size; 3466 3467 size = min_t(size_t, count, hdr_size); 3468 memcpy(buf, firmware->data, size); 3469 3470 /* USB patches should go down to controller through USB path 3471 * because binary format fits to go down through USB channel. 3472 * USB control path is for patching headers and USB bulk is for 3473 * patch body. 3474 */ 3475 pipe = usb_sndctrlpipe(udev, 0); 3476 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3477 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3478 if (err < 0) { 3479 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3480 goto done; 3481 } 3482 3483 sent += size; 3484 count -= size; 3485 3486 /* ep2 need time to switch from function acl to function dfu, 3487 * so we add 20ms delay here. 3488 */ 3489 msleep(20); 3490 3491 while (count) { 3492 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3493 3494 memcpy(buf, firmware->data + sent, size); 3495 3496 pipe = usb_sndbulkpipe(udev, 0x02); 3497 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3498 QCA_DFU_TIMEOUT); 3499 if (err < 0) { 3500 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3501 sent, firmware->size, err); 3502 break; 3503 } 3504 3505 if (size != len) { 3506 bt_dev_err(hdev, "Failed to get bulk buffer"); 3507 err = -EILSEQ; 3508 break; 3509 } 3510 3511 sent += size; 3512 count -= size; 3513 } 3514 3515 done: 3516 kfree(buf); 3517 return err; 3518 } 3519 3520 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3521 struct qca_version *ver, 3522 const struct qca_device_info *info) 3523 { 3524 struct qca_rampatch_version *rver; 3525 const struct firmware *fw; 3526 const char *fw_subdir; 3527 u32 ver_rom, ver_patch, rver_rom; 3528 u16 rver_rom_low, rver_rom_high, rver_patch; 3529 char fwname[80]; 3530 int err; 3531 3532 ver_rom = le32_to_cpu(ver->rom_version); 3533 ver_patch = le32_to_cpu(ver->patch_version); 3534 3535 fw_subdir = qca_get_fw_subdirectory(ver); 3536 if (fw_subdir) 3537 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin", 3538 fw_subdir, ver_rom); 3539 else 3540 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", 3541 ver_rom); 3542 3543 err = request_firmware(&fw, fwname, &hdev->dev); 3544 if (err) { 3545 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3546 fwname, err); 3547 return err; 3548 } 3549 3550 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3551 3552 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3553 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3554 rver_patch = le16_to_cpu(rver->patch_version); 3555 3556 if (ver_rom & ~0xffffU) { 3557 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3558 rver_rom = rver_rom_high << 16 | rver_rom_low; 3559 } else { 3560 rver_rom = rver_rom_low; 3561 } 3562 3563 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3564 "firmware rome 0x%x build 0x%x", 3565 rver_rom, rver_patch, ver_rom, ver_patch); 3566 3567 /* Allow rampatch when the patch version equals the firmware version. 3568 * A firmware download may be aborted by a transient USB error (e.g. 3569 * disconnect) after the controller updates version info but before 3570 * completion. 3571 * Allowing equal versions enables re-flashing during recovery. 3572 */ 3573 if (rver_rom != ver_rom || rver_patch < ver_patch) { 3574 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3575 err = -EINVAL; 3576 goto done; 3577 } 3578 3579 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3580 3581 done: 3582 release_firmware(fw); 3583 3584 return err; 3585 } 3586 3587 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3588 const struct qca_version *ver) 3589 { 3590 u32 rom_version = le32_to_cpu(ver->rom_version); 3591 const char *variant, *fw_subdir; 3592 int len; 3593 u16 board_id; 3594 3595 fw_subdir = qca_get_fw_subdirectory(ver); 3596 board_id = qca_extract_board_id(ver); 3597 3598 switch (le32_to_cpu(ver->ram_version)) { 3599 case WCN6855_2_0_RAM_VERSION_GF: 3600 case WCN6855_2_1_RAM_VERSION_GF: 3601 variant = "_gf"; 3602 break; 3603 default: 3604 variant = NULL; 3605 break; 3606 } 3607 3608 if (fw_subdir) 3609 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x", 3610 fw_subdir, rom_version); 3611 else 3612 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x", 3613 rom_version); 3614 if (variant) 3615 len += snprintf(fwname + len, max_size - len, "%s", variant); 3616 if (board_id) 3617 len += snprintf(fwname + len, max_size - len, "_%04x", board_id); 3618 len += snprintf(fwname + len, max_size - len, ".bin"); 3619 } 3620 3621 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3622 struct qca_version *ver, 3623 const struct qca_device_info *info) 3624 { 3625 const struct firmware *fw; 3626 char fwname[80]; 3627 int err; 3628 3629 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3630 3631 err = request_firmware(&fw, fwname, &hdev->dev); 3632 if (err) { 3633 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3634 fwname, err); 3635 return err; 3636 } 3637 3638 bt_dev_info(hdev, "using NVM file: %s", fwname); 3639 3640 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3641 3642 release_firmware(fw); 3643 3644 return err; 3645 } 3646 3647 /* identify the ROM version and check whether patches are needed */ 3648 static bool btusb_qca_need_patch(struct usb_device *udev) 3649 { 3650 struct qca_version ver; 3651 3652 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3653 sizeof(ver)) < 0) 3654 return false; 3655 /* only low ROM versions need patches */ 3656 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3657 } 3658 3659 static int btusb_setup_qca(struct hci_dev *hdev) 3660 { 3661 struct btusb_data *btdata = hci_get_drvdata(hdev); 3662 struct usb_device *udev = btdata->udev; 3663 const struct qca_device_info *info = NULL; 3664 struct qca_version ver; 3665 u32 ver_rom; 3666 u8 status; 3667 int i, err; 3668 3669 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3670 sizeof(ver)); 3671 if (err < 0) 3672 return err; 3673 3674 ver_rom = le32_to_cpu(ver.rom_version); 3675 3676 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3677 if (ver_rom == qca_devices_table[i].rom_version) 3678 info = &qca_devices_table[i]; 3679 } 3680 if (!info) { 3681 /* If the rom_version is not matched in the qca_devices_table 3682 * and the high ROM version is not zero, we assume this chip no 3683 * need to load the rampatch and nvm. 3684 */ 3685 if (ver_rom & ~0xffffU) 3686 return 0; 3687 3688 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3689 return -ENODEV; 3690 } 3691 3692 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3693 sizeof(status)); 3694 if (err < 0) 3695 return err; 3696 3697 if (!(status & QCA_PATCH_UPDATED)) { 3698 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3699 if (err < 0) 3700 return err; 3701 } 3702 3703 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3704 sizeof(ver)); 3705 if (err < 0) 3706 return err; 3707 3708 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3709 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3710 3711 if (!(status & QCA_SYSCFG_UPDATED)) { 3712 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3713 if (err < 0) 3714 return err; 3715 3716 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3717 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3718 * cause potential enable failure. 3719 */ 3720 if (info->rom_version >= 0x00130201) 3721 msleep(QCA_BT_RESET_WAIT_MS); 3722 } 3723 3724 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3725 * work with the likes of HSP/HFP mSBC. 3726 */ 3727 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 3728 3729 return 0; 3730 } 3731 3732 static inline int __set_diag_interface(struct hci_dev *hdev) 3733 { 3734 struct btusb_data *data = hci_get_drvdata(hdev); 3735 struct usb_interface *intf = data->diag; 3736 int ret; 3737 3738 if (!data->diag) 3739 return -ENODEV; 3740 3741 ret = usb_find_common_endpoints(intf->cur_altsetting, &data->diag_rx_ep, 3742 &data->diag_tx_ep, NULL, NULL); 3743 if (ret) { 3744 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3745 return -ENODEV; 3746 } 3747 3748 return 0; 3749 } 3750 3751 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3752 { 3753 struct btusb_data *data = hci_get_drvdata(hdev); 3754 struct sk_buff *skb; 3755 struct urb *urb; 3756 unsigned int pipe; 3757 3758 if (!data->diag_tx_ep) 3759 return ERR_PTR(-ENODEV); 3760 3761 urb = usb_alloc_urb(0, GFP_KERNEL); 3762 if (!urb) 3763 return ERR_PTR(-ENOMEM); 3764 3765 skb = bt_skb_alloc(2, GFP_KERNEL); 3766 if (!skb) { 3767 usb_free_urb(urb); 3768 return ERR_PTR(-ENOMEM); 3769 } 3770 3771 skb_put_u8(skb, 0xf0); 3772 skb_put_u8(skb, enable); 3773 3774 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 3775 3776 usb_fill_bulk_urb(urb, data->udev, pipe, 3777 skb->data, skb->len, btusb_tx_complete, skb); 3778 3779 skb->dev = (void *)hdev; 3780 3781 return urb; 3782 } 3783 3784 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 3785 { 3786 struct btusb_data *data = hci_get_drvdata(hdev); 3787 struct urb *urb; 3788 3789 if (!data->diag) 3790 return -ENODEV; 3791 3792 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3793 return -ENETDOWN; 3794 3795 urb = alloc_diag_urb(hdev, enable); 3796 if (IS_ERR(urb)) 3797 return PTR_ERR(urb); 3798 3799 return submit_or_queue_tx_urb(hdev, urb); 3800 } 3801 3802 #ifdef CONFIG_PM 3803 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 3804 { 3805 struct btusb_data *data = priv; 3806 3807 pm_wakeup_event(&data->udev->dev, 0); 3808 pm_system_wakeup(); 3809 3810 /* Disable only if not already disabled (keep it balanced) */ 3811 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3812 disable_irq_nosync(irq); 3813 disable_irq_wake(irq); 3814 } 3815 return IRQ_HANDLED; 3816 } 3817 3818 static const struct of_device_id btusb_match_table[] = { 3819 { .compatible = "usb1286,204e" }, 3820 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 3821 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 3822 { } 3823 }; 3824 MODULE_DEVICE_TABLE(of, btusb_match_table); 3825 3826 /* Use an oob wakeup pin? */ 3827 static int btusb_config_oob_wake(struct hci_dev *hdev) 3828 { 3829 struct btusb_data *data = hci_get_drvdata(hdev); 3830 struct device *dev = &data->udev->dev; 3831 int irq, ret; 3832 3833 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3834 3835 if (!of_match_device(btusb_match_table, dev)) 3836 return 0; 3837 3838 /* Move on if no IRQ specified */ 3839 irq = of_irq_get_byname(dev->of_node, "wakeup"); 3840 if (irq <= 0) { 3841 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 3842 return 0; 3843 } 3844 3845 irq_set_status_flags(irq, IRQ_NOAUTOEN); 3846 ret = request_irq(irq, btusb_oob_wake_handler, 0, "OOB Wake-on-BT", data); 3847 if (ret) { 3848 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 3849 return ret; 3850 } 3851 3852 ret = device_init_wakeup(dev, true); 3853 if (ret) { 3854 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 3855 goto err_free_irq; 3856 } 3857 3858 data->oob_wake_irq = irq; 3859 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 3860 3861 return 0; 3862 3863 err_free_irq: 3864 free_irq(irq, data); 3865 3866 return ret; 3867 } 3868 #else 3869 static inline int btusb_config_oob_wake(struct hci_dev *hdev) 3870 { 3871 return 0; 3872 } 3873 #endif 3874 3875 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 3876 { 3877 if (dmi_check_system(btusb_needs_reset_resume_table)) 3878 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3879 } 3880 3881 static bool btusb_wakeup(struct hci_dev *hdev) 3882 { 3883 struct btusb_data *data = hci_get_drvdata(hdev); 3884 3885 return device_may_wakeup(&data->udev->dev); 3886 } 3887 3888 static int btusb_shutdown_qca(struct hci_dev *hdev) 3889 { 3890 struct sk_buff *skb; 3891 3892 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 3893 if (IS_ERR(skb)) { 3894 bt_dev_err(hdev, "HCI reset during shutdown failed"); 3895 return PTR_ERR(skb); 3896 } 3897 kfree_skb(skb); 3898 3899 return 0; 3900 } 3901 3902 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 3903 size_t count, loff_t *ppos) 3904 { 3905 struct btusb_data *data = file->private_data; 3906 char buf[3]; 3907 3908 buf[0] = data->poll_sync ? 'Y' : 'N'; 3909 buf[1] = '\n'; 3910 buf[2] = '\0'; 3911 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 3912 } 3913 3914 static ssize_t force_poll_sync_write(struct file *file, 3915 const char __user *user_buf, 3916 size_t count, loff_t *ppos) 3917 { 3918 struct btusb_data *data = file->private_data; 3919 bool enable; 3920 int err; 3921 3922 err = kstrtobool_from_user(user_buf, count, &enable); 3923 if (err) 3924 return err; 3925 3926 /* Only allow changes while the adapter is down */ 3927 if (test_bit(HCI_UP, &data->hdev->flags)) 3928 return -EPERM; 3929 3930 if (data->poll_sync == enable) 3931 return -EALREADY; 3932 3933 data->poll_sync = enable; 3934 3935 return count; 3936 } 3937 3938 static const struct file_operations force_poll_sync_fops = { 3939 .owner = THIS_MODULE, 3940 .open = simple_open, 3941 .read = force_poll_sync_read, 3942 .write = force_poll_sync_write, 3943 .llseek = default_llseek, 3944 }; 3945 3946 #define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \ 3947 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000) 3948 #define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0 3949 struct btusb_hci_drv_rp_supported_altsettings { 3950 __u8 num; 3951 __u8 altsettings[]; 3952 } __packed; 3953 3954 #define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \ 3955 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001) 3956 #define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1 3957 struct btusb_hci_drv_cmd_switch_altsetting { 3958 __u8 altsetting; 3959 } __packed; 3960 3961 static const struct { 3962 u16 opcode; 3963 const char *desc; 3964 } btusb_hci_drv_supported_commands[] = { 3965 /* Common commands */ 3966 { HCI_DRV_OP_READ_INFO, "Read Info" }, 3967 3968 /* Driver specific commands */ 3969 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" }, 3970 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" }, 3971 }; 3972 static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data, 3973 u16 data_len) 3974 { 3975 struct hci_drv_rp_read_info *rp; 3976 size_t rp_size; 3977 int err, i; 3978 u16 opcode, num_supported_commands = 3979 ARRAY_SIZE(btusb_hci_drv_supported_commands); 3980 3981 rp_size = sizeof(*rp) + num_supported_commands * 2; 3982 3983 rp = kmalloc(rp_size, GFP_KERNEL); 3984 if (!rp) 3985 return -ENOMEM; 3986 3987 strscpy_pad(rp->driver_name, btusb_driver.name); 3988 3989 rp->num_supported_commands = cpu_to_le16(num_supported_commands); 3990 for (i = 0; i < num_supported_commands; i++) { 3991 opcode = btusb_hci_drv_supported_commands[i].opcode; 3992 bt_dev_info(hdev, 3993 "Supported HCI Drv command (0x%02x|0x%04x): %s", 3994 hci_opcode_ogf(opcode), 3995 hci_opcode_ocf(opcode), 3996 btusb_hci_drv_supported_commands[i].desc); 3997 rp->supported_commands[i] = cpu_to_le16(opcode); 3998 } 3999 4000 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO, 4001 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4002 4003 kfree(rp); 4004 return err; 4005 } 4006 4007 static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data, 4008 u16 data_len) 4009 { 4010 struct btusb_data *drvdata = hci_get_drvdata(hdev); 4011 struct btusb_hci_drv_rp_supported_altsettings *rp; 4012 size_t rp_size; 4013 int err; 4014 u8 i; 4015 4016 /* There are at most 7 alt (0 - 6) */ 4017 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL); 4018 if (!rp) 4019 return -ENOMEM; 4020 4021 rp->num = 0; 4022 if (!drvdata->isoc) 4023 goto done; 4024 4025 for (i = 0; i <= 6; i++) { 4026 if (btusb_find_altsetting(drvdata, i)) 4027 rp->altsettings[rp->num++] = i; 4028 } 4029 4030 done: 4031 rp_size = sizeof(*rp) + rp->num; 4032 4033 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, 4034 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4035 kfree(rp); 4036 return err; 4037 } 4038 4039 static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data, 4040 u16 data_len) 4041 { 4042 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data; 4043 u8 status; 4044 4045 if (cmd->altsetting > 6) { 4046 status = HCI_DRV_STATUS_INVALID_PARAMETERS; 4047 } else { 4048 if (btusb_switch_alt_setting(hdev, cmd->altsetting)) 4049 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR; 4050 else 4051 status = HCI_DRV_STATUS_SUCCESS; 4052 } 4053 4054 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, 4055 status); 4056 } 4057 4058 static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = { 4059 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE }, 4060 }; 4061 4062 static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = { 4063 { btusb_hci_drv_supported_altsettings, 4064 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE }, 4065 { btusb_hci_drv_switch_altsetting, 4066 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE }, 4067 }; 4068 4069 static struct hci_drv btusb_hci_drv = { 4070 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers), 4071 .common_handlers = btusb_hci_drv_common_handlers, 4072 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers), 4073 .specific_handlers = btusb_hci_drv_specific_handlers, 4074 }; 4075 4076 static int btusb_probe(struct usb_interface *intf, 4077 const struct usb_device_id *id) 4078 { 4079 struct gpio_desc *reset_gpio; 4080 struct btusb_data *data; 4081 struct hci_dev *hdev; 4082 unsigned ifnum_base; 4083 int err, priv_size; 4084 4085 BT_DBG("intf %p id %p", intf, id); 4086 4087 if ((id->driver_info & BTUSB_IFNUM_2) && 4088 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4089 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4090 return -ENODEV; 4091 4092 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4093 4094 if (!id->driver_info) { 4095 const struct usb_device_id *match; 4096 4097 match = usb_match_id(intf, quirks_table); 4098 if (match) 4099 id = match; 4100 } 4101 4102 if (id->driver_info == BTUSB_IGNORE) 4103 return -ENODEV; 4104 4105 if (id->driver_info & BTUSB_ATH3012) { 4106 struct usb_device *udev = interface_to_usbdev(intf); 4107 4108 /* Old firmware would otherwise let ath3k driver load 4109 * patch and sysconfig files 4110 */ 4111 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4112 !btusb_qca_need_patch(udev)) 4113 return -ENODEV; 4114 } 4115 4116 data = kzalloc_obj(*data); 4117 if (!data) 4118 return -ENOMEM; 4119 4120 err = usb_find_common_endpoints(intf->cur_altsetting, &data->bulk_rx_ep, 4121 &data->bulk_tx_ep, &data->intr_ep, NULL); 4122 if (err) 4123 goto err_free_data; 4124 4125 if (id->driver_info & BTUSB_AMP) { 4126 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4127 data->cmdreq = 0x2b; 4128 } else { 4129 data->cmdreq_type = USB_TYPE_CLASS; 4130 data->cmdreq = 0x00; 4131 } 4132 4133 data->udev = interface_to_usbdev(intf); 4134 data->intf = intf; 4135 4136 INIT_WORK(&data->work, btusb_work); 4137 INIT_WORK(&data->waker, btusb_waker); 4138 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4139 4140 skb_queue_head_init(&data->acl_q); 4141 4142 init_usb_anchor(&data->deferred); 4143 init_usb_anchor(&data->tx_anchor); 4144 spin_lock_init(&data->txlock); 4145 4146 init_usb_anchor(&data->intr_anchor); 4147 init_usb_anchor(&data->bulk_anchor); 4148 init_usb_anchor(&data->isoc_anchor); 4149 init_usb_anchor(&data->diag_anchor); 4150 init_usb_anchor(&data->ctrl_anchor); 4151 spin_lock_init(&data->rxlock); 4152 4153 priv_size = 0; 4154 4155 data->recv_event = hci_recv_frame; 4156 data->recv_bulk = btusb_recv_bulk; 4157 4158 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4159 /* Allocate extra space for Intel device */ 4160 priv_size += sizeof(struct btintel_data); 4161 4162 /* Override the rx handlers */ 4163 data->recv_event = btintel_recv_event; 4164 data->recv_bulk = btusb_recv_bulk_intel; 4165 } else if (id->driver_info & BTUSB_REALTEK) { 4166 /* Allocate extra space for Realtek device */ 4167 priv_size += sizeof(struct btrealtek_data); 4168 4169 data->recv_event = btusb_recv_event_realtek; 4170 } else if (id->driver_info & BTUSB_MEDIATEK) { 4171 /* Allocate extra space for Mediatek device */ 4172 priv_size += sizeof(struct btmtk_data); 4173 } 4174 4175 data->recv_acl = hci_recv_frame; 4176 4177 hdev = hci_alloc_dev_priv(priv_size); 4178 if (!hdev) { 4179 err = -ENOMEM; 4180 goto err_free_data; 4181 } 4182 4183 hdev->bus = HCI_USB; 4184 hci_set_drvdata(hdev, data); 4185 4186 data->hdev = hdev; 4187 4188 SET_HCIDEV_DEV(hdev, &intf->dev); 4189 4190 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4191 GPIOD_OUT_LOW); 4192 if (IS_ERR(reset_gpio)) { 4193 err = PTR_ERR(reset_gpio); 4194 goto err_free_hdev; 4195 } else if (reset_gpio) { 4196 data->reset_gpio = reset_gpio; 4197 } 4198 4199 hdev->open = btusb_open; 4200 hdev->close = btusb_close; 4201 hdev->flush = btusb_flush; 4202 hdev->send = btusb_send_frame; 4203 hdev->notify = btusb_notify; 4204 hdev->wakeup = btusb_wakeup; 4205 hdev->hci_drv = &btusb_hci_drv; 4206 4207 err = btusb_config_oob_wake(hdev); 4208 if (err) 4209 goto err_put_reset; 4210 4211 /* Marvell devices may need a specific chip configuration */ 4212 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4213 err = marvell_config_oob_wake(hdev); 4214 if (err) 4215 goto err_disable_wakeup; 4216 } 4217 4218 if (id->driver_info & BTUSB_CW6622) 4219 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4220 4221 if (id->driver_info & BTUSB_BCM2045) 4222 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4223 4224 if (id->driver_info & BTUSB_BCM92035) 4225 hdev->setup = btusb_setup_bcm92035; 4226 4227 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4228 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4229 hdev->manufacturer = 15; 4230 hdev->setup = btbcm_setup_patchram; 4231 hdev->set_diag = btusb_bcm_set_diag; 4232 hdev->set_bdaddr = btbcm_set_bdaddr; 4233 4234 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4235 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4236 } 4237 4238 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4239 (id->driver_info & BTUSB_BCM_APPLE)) { 4240 hdev->manufacturer = 15; 4241 hdev->setup = btbcm_setup_apple; 4242 hdev->set_diag = btusb_bcm_set_diag; 4243 4244 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4245 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4246 } 4247 4248 /* Combined Intel Device setup to support multiple setup routine */ 4249 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4250 err = btintel_configure_setup(hdev, btusb_driver.name); 4251 if (err) 4252 goto err_kill_tx_urbs; 4253 4254 /* Transport specific configuration */ 4255 hdev->send = btusb_send_frame_intel; 4256 hdev->reset = btusb_intel_reset; 4257 4258 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4259 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4260 4261 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4262 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4263 4264 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4265 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4266 } 4267 4268 if (id->driver_info & BTUSB_MARVELL) 4269 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4270 4271 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4272 (id->driver_info & BTUSB_MEDIATEK)) { 4273 hdev->setup = btusb_mtk_setup; 4274 hdev->shutdown = btusb_mtk_shutdown; 4275 hdev->manufacturer = 70; 4276 hdev->reset = btmtk_reset_sync; 4277 hdev->set_bdaddr = btmtk_set_bdaddr; 4278 hdev->send = btusb_send_frame_mtk; 4279 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 4280 hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP); 4281 data->recv_acl = btmtk_usb_recv_acl; 4282 data->recv_event = btmtk_recv_event; 4283 data->suspend = btmtk_usb_suspend; 4284 data->resume = btmtk_usb_resume; 4285 data->disconnect = btusb_mtk_disconnect; 4286 } 4287 4288 if (id->driver_info & BTUSB_SWAVE) { 4289 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE); 4290 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS); 4291 } 4292 4293 if (id->driver_info & BTUSB_INTEL_BOOT) { 4294 hdev->manufacturer = 2; 4295 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4296 } 4297 4298 if (id->driver_info & BTUSB_ATH3012) { 4299 data->setup_on_usb = btusb_setup_qca; 4300 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4301 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4302 hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER); 4303 } 4304 4305 if (id->driver_info & BTUSB_QCA_ROME) { 4306 data->setup_on_usb = btusb_setup_qca; 4307 hdev->shutdown = btusb_shutdown_qca; 4308 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4309 hdev->reset = btusb_qca_reset; 4310 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4311 btusb_check_needs_reset_resume(intf); 4312 } 4313 4314 if (id->driver_info & BTUSB_QCA_WCN6855) { 4315 data->qca_dump.id_vendor = id->idVendor; 4316 data->qca_dump.id_product = id->idProduct; 4317 data->recv_event = btusb_recv_evt_qca; 4318 data->recv_acl = btusb_recv_acl_qca; 4319 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4320 data->setup_on_usb = btusb_setup_qca; 4321 hdev->classify_pkt_type = btusb_classify_qca_pkt_type; 4322 hdev->shutdown = btusb_shutdown_qca; 4323 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4324 hdev->reset = btusb_qca_reset; 4325 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4326 hci_set_msft_opcode(hdev, 0xFD70); 4327 } 4328 4329 if (id->driver_info & BTUSB_AMP) { 4330 /* AMP controllers do not support SCO packets */ 4331 data->isoc = NULL; 4332 } else { 4333 /* Interface orders are hardcoded in the specification */ 4334 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4335 data->isoc_ifnum = ifnum_base + 1; 4336 } 4337 4338 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4339 (id->driver_info & BTUSB_REALTEK)) { 4340 btrtl_set_driver_name(hdev, btusb_driver.name); 4341 hdev->setup = btusb_setup_realtek; 4342 hdev->shutdown = btrtl_shutdown_realtek; 4343 hdev->reset = btusb_rtl_reset; 4344 hdev->hw_error = btusb_rtl_hw_error; 4345 4346 /* Realtek devices need to set remote wakeup on auto-suspend */ 4347 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4348 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4349 } 4350 4351 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4352 /* Support is advertised, but not implemented */ 4353 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 4354 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER); 4355 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT); 4356 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN); 4357 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE); 4358 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN); 4359 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT); 4360 } 4361 4362 if (!reset) 4363 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4364 4365 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4366 if (!disable_scofix) 4367 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE); 4368 } 4369 4370 if (id->driver_info & BTUSB_BROKEN_ISOC) 4371 data->isoc = NULL; 4372 4373 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4374 hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED); 4375 4376 if (id->driver_info & BTUSB_INVALID_LE_STATES) 4377 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES); 4378 4379 if (id->driver_info & BTUSB_DIGIANSWER) { 4380 data->cmdreq_type = USB_TYPE_VENDOR; 4381 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4382 } 4383 4384 if (id->driver_info & BTUSB_CSR) { 4385 struct usb_device *udev = data->udev; 4386 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4387 4388 /* Old firmware would otherwise execute USB reset */ 4389 if (bcdDevice < 0x117) 4390 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4391 4392 /* This must be set first in case we disable it for fakes */ 4393 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4394 4395 /* Fake CSR devices with broken commands */ 4396 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4397 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4398 hdev->setup = btusb_setup_csr; 4399 } 4400 4401 if (id->driver_info & BTUSB_SNIFFER) { 4402 struct usb_device *udev = data->udev; 4403 4404 /* New sniffer firmware has crippled HCI interface */ 4405 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4406 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4407 } 4408 4409 if (id->driver_info & BTUSB_INTEL_BOOT) { 4410 /* A bug in the bootloader causes that interrupt interface is 4411 * only enabled after receiving SetInterface(0, AltSetting=0). 4412 */ 4413 err = usb_set_interface(data->udev, 0, 0); 4414 if (err < 0) { 4415 BT_ERR("failed to set interface 0, alt 0 %d", err); 4416 goto err_kill_tx_urbs; 4417 } 4418 } 4419 4420 if (data->isoc) { 4421 err = usb_driver_claim_interface(&btusb_driver, 4422 data->isoc, data); 4423 if (err < 0) 4424 goto err_kill_tx_urbs; 4425 } 4426 4427 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4428 if (!usb_driver_claim_interface(&btusb_driver, 4429 data->diag, data)) 4430 __set_diag_interface(hdev); 4431 else 4432 data->diag = NULL; 4433 } 4434 4435 if (enable_autosuspend) 4436 usb_enable_autosuspend(data->udev); 4437 4438 data->poll_sync = enable_poll_sync; 4439 4440 err = hci_register_dev(hdev); 4441 if (err < 0) 4442 goto err_release_siblings; 4443 4444 usb_set_intfdata(intf, data); 4445 4446 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4447 &force_poll_sync_fops); 4448 4449 return 0; 4450 4451 err_release_siblings: 4452 if (data->diag) { 4453 usb_set_intfdata(data->diag, NULL); 4454 usb_driver_release_interface(&btusb_driver, data->diag); 4455 } 4456 if (data->isoc) { 4457 usb_set_intfdata(data->isoc, NULL); 4458 usb_driver_release_interface(&btusb_driver, data->isoc); 4459 } 4460 err_kill_tx_urbs: 4461 usb_kill_anchored_urbs(&data->tx_anchor); 4462 err_disable_wakeup: 4463 if (data->oob_wake_irq) { 4464 device_init_wakeup(&data->udev->dev, false); 4465 free_irq(data->oob_wake_irq, data); 4466 } 4467 err_put_reset: 4468 if (data->reset_gpio) 4469 gpiod_put(data->reset_gpio); 4470 err_free_hdev: 4471 hci_free_dev(hdev); 4472 err_free_data: 4473 kfree(data); 4474 4475 return err; 4476 } 4477 4478 static void btusb_disconnect(struct usb_interface *intf) 4479 { 4480 struct btusb_data *data = usb_get_intfdata(intf); 4481 struct hci_dev *hdev; 4482 4483 BT_DBG("intf %p", intf); 4484 4485 if (!data) 4486 return; 4487 4488 hdev = data->hdev; 4489 usb_set_intfdata(data->intf, NULL); 4490 4491 if (data->isoc) 4492 usb_set_intfdata(data->isoc, NULL); 4493 4494 if (data->diag) 4495 usb_set_intfdata(data->diag, NULL); 4496 4497 if (data->disconnect) 4498 data->disconnect(hdev); 4499 4500 hci_unregister_dev(hdev); 4501 4502 if (data->oob_wake_irq) { 4503 device_init_wakeup(&data->udev->dev, false); 4504 free_irq(data->oob_wake_irq, data); 4505 } 4506 4507 if (data->reset_gpio) 4508 gpiod_put(data->reset_gpio); 4509 4510 if (intf == data->intf) { 4511 if (data->isoc) 4512 usb_driver_release_interface(&btusb_driver, data->isoc); 4513 if (data->diag) 4514 usb_driver_release_interface(&btusb_driver, data->diag); 4515 } else if (intf == data->isoc) { 4516 if (data->diag) 4517 usb_driver_release_interface(&btusb_driver, data->diag); 4518 usb_driver_release_interface(&btusb_driver, data->intf); 4519 } else if (intf == data->diag) { 4520 if (data->isoc) 4521 usb_driver_release_interface(&btusb_driver, data->isoc); 4522 usb_driver_release_interface(&btusb_driver, data->intf); 4523 } 4524 4525 hci_free_dev(hdev); 4526 kfree(data); 4527 } 4528 4529 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4530 { 4531 struct btusb_data *data = usb_get_intfdata(intf); 4532 4533 BT_DBG("intf %p", intf); 4534 4535 /* Don't auto-suspend if there are connections or discovery in 4536 * progress; external suspend calls shall never fail. 4537 */ 4538 if (PMSG_IS_AUTO(message) && 4539 (hci_conn_count(data->hdev) || hci_discovery_active(data->hdev))) 4540 return -EBUSY; 4541 4542 if (data->suspend_count++) 4543 return 0; 4544 4545 spin_lock_irq(&data->txlock); 4546 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4547 set_bit(BTUSB_SUSPENDING, &data->flags); 4548 spin_unlock_irq(&data->txlock); 4549 } else { 4550 spin_unlock_irq(&data->txlock); 4551 data->suspend_count--; 4552 return -EBUSY; 4553 } 4554 4555 cancel_work_sync(&data->work); 4556 4557 if (data->suspend) 4558 data->suspend(data->hdev); 4559 4560 btusb_stop_traffic(data); 4561 usb_kill_anchored_urbs(&data->tx_anchor); 4562 4563 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4564 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4565 enable_irq_wake(data->oob_wake_irq); 4566 enable_irq(data->oob_wake_irq); 4567 } 4568 4569 /* For global suspend, Realtek devices lose the loaded fw 4570 * in them. But for autosuspend, firmware should remain. 4571 * Actually, it depends on whether the usb host sends 4572 * set feature (enable wakeup) or not. 4573 */ 4574 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4575 if (PMSG_IS_AUTO(message) && 4576 device_can_wakeup(&data->udev->dev)) 4577 data->udev->do_remote_wakeup = 1; 4578 else if (!PMSG_IS_AUTO(message) && 4579 !device_may_wakeup(&data->udev->dev)) { 4580 data->udev->do_remote_wakeup = 0; 4581 data->udev->reset_resume = 1; 4582 } 4583 } 4584 4585 return 0; 4586 } 4587 4588 static void play_deferred(struct btusb_data *data) 4589 { 4590 struct urb *urb; 4591 int err; 4592 4593 while ((urb = usb_get_from_anchor(&data->deferred))) { 4594 usb_anchor_urb(urb, &data->tx_anchor); 4595 4596 err = usb_submit_urb(urb, GFP_ATOMIC); 4597 if (err < 0) { 4598 if (err != -EPERM && err != -ENODEV) 4599 BT_ERR("%s urb %p submission failed (%d)", 4600 data->hdev->name, urb, -err); 4601 kfree(urb->setup_packet); 4602 usb_unanchor_urb(urb); 4603 usb_free_urb(urb); 4604 break; 4605 } 4606 4607 data->tx_in_flight++; 4608 usb_free_urb(urb); 4609 } 4610 4611 /* Cleanup the rest deferred urbs. */ 4612 while ((urb = usb_get_from_anchor(&data->deferred))) { 4613 kfree(urb->setup_packet); 4614 usb_free_urb(urb); 4615 } 4616 } 4617 4618 static int btusb_resume(struct usb_interface *intf) 4619 { 4620 struct btusb_data *data = usb_get_intfdata(intf); 4621 struct hci_dev *hdev = data->hdev; 4622 int err = 0; 4623 4624 BT_DBG("intf %p", intf); 4625 4626 if (--data->suspend_count) 4627 return 0; 4628 4629 /* Disable only if not already disabled (keep it balanced) */ 4630 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4631 disable_irq(data->oob_wake_irq); 4632 disable_irq_wake(data->oob_wake_irq); 4633 } 4634 4635 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4636 goto done; 4637 4638 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4639 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4640 if (err < 0) { 4641 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4642 goto failed; 4643 } 4644 } 4645 4646 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4647 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4648 if (err < 0) { 4649 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4650 goto failed; 4651 } 4652 4653 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4654 } 4655 4656 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4657 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4658 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4659 else 4660 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4661 } 4662 4663 if (data->resume) 4664 data->resume(hdev); 4665 4666 spin_lock_irq(&data->txlock); 4667 play_deferred(data); 4668 clear_bit(BTUSB_SUSPENDING, &data->flags); 4669 spin_unlock_irq(&data->txlock); 4670 schedule_work(&data->work); 4671 4672 return 0; 4673 4674 failed: 4675 usb_scuttle_anchored_urbs(&data->deferred); 4676 done: 4677 spin_lock_irq(&data->txlock); 4678 clear_bit(BTUSB_SUSPENDING, &data->flags); 4679 spin_unlock_irq(&data->txlock); 4680 4681 return err; 4682 } 4683 4684 #ifdef CONFIG_DEV_COREDUMP 4685 static void btusb_coredump(struct device *dev) 4686 { 4687 struct btusb_data *data = dev_get_drvdata(dev); 4688 struct hci_dev *hdev = data->hdev; 4689 4690 if (hdev->dump.coredump) 4691 hdev->dump.coredump(hdev); 4692 } 4693 #endif 4694 4695 static struct usb_driver btusb_driver = { 4696 .name = "btusb", 4697 .probe = btusb_probe, 4698 .disconnect = btusb_disconnect, 4699 .suspend = pm_ptr(btusb_suspend), 4700 .resume = pm_ptr(btusb_resume), 4701 .id_table = btusb_table, 4702 .supports_autosuspend = 1, 4703 .disable_hub_initiated_lpm = 1, 4704 4705 #ifdef CONFIG_DEV_COREDUMP 4706 .driver = { 4707 .coredump = btusb_coredump, 4708 }, 4709 #endif 4710 }; 4711 4712 module_usb_driver(btusb_driver); 4713 4714 module_param(disable_scofix, bool, 0644); 4715 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4716 4717 module_param(force_scofix, bool, 0644); 4718 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4719 4720 module_param(enable_autosuspend, bool, 0644); 4721 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4722 4723 module_param(reset, bool, 0644); 4724 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4725 4726 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4727 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4728 MODULE_VERSION(VERSION); 4729 MODULE_LICENSE("GPL"); 4730