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 <asm/unaligned.h> 21 22 #include <net/bluetooth/bluetooth.h> 23 #include <net/bluetooth/hci_core.h> 24 25 #include "btintel.h" 26 #include "btbcm.h" 27 #include "btrtl.h" 28 #include "btmtk.h" 29 30 #define VERSION "0.8" 31 32 static bool disable_scofix; 33 static bool force_scofix; 34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 36 static bool reset = true; 37 38 static struct usb_driver btusb_driver; 39 40 #define BTUSB_IGNORE BIT(0) 41 #define BTUSB_DIGIANSWER BIT(1) 42 #define BTUSB_CSR BIT(2) 43 #define BTUSB_SNIFFER BIT(3) 44 #define BTUSB_BCM92035 BIT(4) 45 #define BTUSB_BROKEN_ISOC BIT(5) 46 #define BTUSB_WRONG_SCO_MTU BIT(6) 47 #define BTUSB_ATH3012 BIT(7) 48 #define BTUSB_INTEL_COMBINED BIT(8) 49 #define BTUSB_INTEL_BOOT BIT(9) 50 #define BTUSB_BCM_PATCHRAM BIT(10) 51 #define BTUSB_MARVELL BIT(11) 52 #define BTUSB_SWAVE BIT(12) 53 #define BTUSB_AMP BIT(13) 54 #define BTUSB_QCA_ROME BIT(14) 55 #define BTUSB_BCM_APPLE BIT(15) 56 #define BTUSB_REALTEK BIT(16) 57 #define BTUSB_BCM2045 BIT(17) 58 #define BTUSB_IFNUM_2 BIT(18) 59 #define BTUSB_CW6622 BIT(19) 60 #define BTUSB_MEDIATEK BIT(20) 61 #define BTUSB_WIDEBAND_SPEECH BIT(21) 62 #define BTUSB_VALID_LE_STATES BIT(22) 63 #define BTUSB_QCA_WCN6855 BIT(23) 64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 66 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 67 #define BTUSB_ACTIONS_SEMI BIT(27) 68 69 static const struct usb_device_id btusb_table[] = { 70 /* Generic Bluetooth USB device */ 71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 72 73 /* Generic Bluetooth AMP device */ 74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 75 76 /* Generic Bluetooth USB interface */ 77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 78 79 /* Apple-specific (Broadcom) devices */ 80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 82 83 /* MediaTek MT76x0E */ 84 { USB_DEVICE(0x0e8d, 0x763f) }, 85 86 /* Broadcom SoftSailing reporting vendor specific */ 87 { USB_DEVICE(0x0a5c, 0x21e1) }, 88 89 /* Apple MacBookPro 7,1 */ 90 { USB_DEVICE(0x05ac, 0x8213) }, 91 92 /* Apple iMac11,1 */ 93 { USB_DEVICE(0x05ac, 0x8215) }, 94 95 /* Apple MacBookPro6,2 */ 96 { USB_DEVICE(0x05ac, 0x8218) }, 97 98 /* Apple MacBookAir3,1, MacBookAir3,2 */ 99 { USB_DEVICE(0x05ac, 0x821b) }, 100 101 /* Apple MacBookAir4,1 */ 102 { USB_DEVICE(0x05ac, 0x821f) }, 103 104 /* Apple MacBookPro8,2 */ 105 { USB_DEVICE(0x05ac, 0x821a) }, 106 107 /* Apple MacMini5,1 */ 108 { USB_DEVICE(0x05ac, 0x8281) }, 109 110 /* AVM BlueFRITZ! USB v2.0 */ 111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 112 113 /* Bluetooth Ultraport Module from IBM */ 114 { USB_DEVICE(0x04bf, 0x030a) }, 115 116 /* ALPS Modules with non-standard id */ 117 { USB_DEVICE(0x044e, 0x3001) }, 118 { USB_DEVICE(0x044e, 0x3002) }, 119 120 /* Ericsson with non-standard id */ 121 { USB_DEVICE(0x0bdb, 0x1002) }, 122 123 /* Canyon CN-BTU1 with HID interfaces */ 124 { USB_DEVICE(0x0c10, 0x0000) }, 125 126 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 128 129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 131 .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* Broadcom BCM920703 (HTC Vive) */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Foxconn - Hon Hai */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Lite-On Technology - Broadcom based */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Broadcom devices with vendor specific id */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* ASUSTek Computer - Broadcom based */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* Belkin F8065bf - Broadcom based */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* IMC Networks - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* Dell Computer - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* Toshiba Corp - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Intel Bluetooth USB Bootloader (RAM module) */ 170 { USB_DEVICE(0x8087, 0x0a5a), 171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 172 173 { } /* Terminating entry */ 174 }; 175 176 MODULE_DEVICE_TABLE(usb, btusb_table); 177 178 static const struct usb_device_id quirks_table[] = { 179 /* CSR BlueCore devices */ 180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 181 182 /* Broadcom BCM2033 without firmware */ 183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 184 185 /* Broadcom BCM2045 devices */ 186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 187 188 /* Atheros 3011 with sflash firmware */ 189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 196 197 /* Atheros AR9285 Malbec with sflash firmware */ 198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 199 200 /* Atheros 3012 with sflash firmware */ 201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 251 252 /* Atheros AR5BBU12 with sflash firmware */ 253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 254 255 /* Atheros AR5BBU12 with sflash firmware */ 256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 258 259 /* QCA ROME chipset */ 260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 261 BTUSB_WIDEBAND_SPEECH }, 262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 263 BTUSB_WIDEBAND_SPEECH }, 264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 265 BTUSB_WIDEBAND_SPEECH }, 266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 267 BTUSB_WIDEBAND_SPEECH }, 268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 269 BTUSB_WIDEBAND_SPEECH }, 270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 271 BTUSB_WIDEBAND_SPEECH }, 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 273 BTUSB_WIDEBAND_SPEECH }, 274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 275 BTUSB_WIDEBAND_SPEECH }, 276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 299 /* QCA WCN6855 chipset */ 300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 301 BTUSB_WIDEBAND_SPEECH | 302 BTUSB_VALID_LE_STATES }, 303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 304 BTUSB_WIDEBAND_SPEECH | 305 BTUSB_VALID_LE_STATES }, 306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 307 BTUSB_WIDEBAND_SPEECH | 308 BTUSB_VALID_LE_STATES }, 309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 310 BTUSB_WIDEBAND_SPEECH | 311 BTUSB_VALID_LE_STATES }, 312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 313 BTUSB_WIDEBAND_SPEECH | 314 BTUSB_VALID_LE_STATES }, 315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH | 317 BTUSB_VALID_LE_STATES }, 318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 319 BTUSB_WIDEBAND_SPEECH | 320 BTUSB_VALID_LE_STATES }, 321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH | 323 BTUSB_VALID_LE_STATES }, 324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH | 326 BTUSB_VALID_LE_STATES }, 327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH | 329 BTUSB_VALID_LE_STATES }, 330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH | 332 BTUSB_VALID_LE_STATES }, 333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH | 335 BTUSB_VALID_LE_STATES }, 336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH | 338 BTUSB_VALID_LE_STATES }, 339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH | 341 BTUSB_VALID_LE_STATES }, 342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH | 344 BTUSB_VALID_LE_STATES }, 345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH | 347 BTUSB_VALID_LE_STATES }, 348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH | 350 BTUSB_VALID_LE_STATES }, 351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH | 353 BTUSB_VALID_LE_STATES }, 354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH | 356 BTUSB_VALID_LE_STATES }, 357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH | 359 BTUSB_VALID_LE_STATES }, 360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH | 362 BTUSB_VALID_LE_STATES }, 363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH | 365 BTUSB_VALID_LE_STATES }, 366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH | 368 BTUSB_VALID_LE_STATES }, 369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH | 371 BTUSB_VALID_LE_STATES }, 372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH | 374 BTUSB_VALID_LE_STATES }, 375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH | 377 BTUSB_VALID_LE_STATES }, 378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 379 BTUSB_WIDEBAND_SPEECH | 380 BTUSB_VALID_LE_STATES }, 381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH | 383 BTUSB_VALID_LE_STATES }, 384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH | 386 BTUSB_VALID_LE_STATES }, 387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 388 BTUSB_WIDEBAND_SPEECH | 389 BTUSB_VALID_LE_STATES }, 390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH | 392 BTUSB_VALID_LE_STATES }, 393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 394 BTUSB_WIDEBAND_SPEECH | 395 BTUSB_VALID_LE_STATES }, 396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH | 398 BTUSB_VALID_LE_STATES }, 399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH | 401 BTUSB_VALID_LE_STATES }, 402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH | 404 BTUSB_VALID_LE_STATES }, 405 406 /* QCA WCN785x chipset */ 407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH | 409 BTUSB_VALID_LE_STATES }, 410 411 /* Broadcom BCM2035 */ 412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 415 416 /* Broadcom BCM2045 */ 417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 420 /* IBM/Lenovo ThinkPad with Broadcom chip */ 421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 424 /* HP laptop with Broadcom chip */ 425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 426 427 /* Dell laptop with Broadcom chip */ 428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 429 430 /* Dell Wireless 370 and 410 devices */ 431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 434 /* Belkin F8T012 and F8T013 devices */ 435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 438 /* Asus WL-BTD202 device */ 439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 441 /* Kensington Bluetooth USB adapter */ 442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 443 444 /* RTX Telecom based adapters with buggy SCO support */ 445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 447 448 /* CONWISE Technology based adapters with buggy SCO support */ 449 { USB_DEVICE(0x0e5e, 0x6622), 450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 451 452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 454 455 /* Digianswer devices */ 456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 458 459 /* CSR BlueCore Bluetooth Sniffer */ 460 { USB_DEVICE(0x0a12, 0x0002), 461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 462 463 /* Frontline ComProbe Bluetooth Sniffer */ 464 { USB_DEVICE(0x16d3, 0x0002), 465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 466 467 /* Marvell Bluetooth devices */ 468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 471 472 /* Intel Bluetooth devices */ 473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 480 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 481 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 482 BTUSB_INTEL_NO_WBS_SUPPORT | 483 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 484 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 485 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 486 BTUSB_INTEL_NO_WBS_SUPPORT | 487 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 488 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 489 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 490 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 491 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 492 493 /* Other Intel Bluetooth devices */ 494 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 495 .driver_info = BTUSB_IGNORE }, 496 497 /* Realtek 8821CE Bluetooth devices */ 498 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 499 BTUSB_WIDEBAND_SPEECH }, 500 501 /* Realtek 8822CE Bluetooth devices */ 502 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 503 BTUSB_WIDEBAND_SPEECH }, 504 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 505 BTUSB_WIDEBAND_SPEECH }, 506 507 /* Realtek 8822CU Bluetooth devices */ 508 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 509 BTUSB_WIDEBAND_SPEECH }, 510 511 /* Realtek 8852AE Bluetooth devices */ 512 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 513 BTUSB_WIDEBAND_SPEECH }, 514 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 515 BTUSB_WIDEBAND_SPEECH }, 516 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 517 BTUSB_WIDEBAND_SPEECH }, 518 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 519 BTUSB_WIDEBAND_SPEECH }, 520 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 521 BTUSB_WIDEBAND_SPEECH }, 522 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 523 BTUSB_WIDEBAND_SPEECH }, 524 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 525 BTUSB_WIDEBAND_SPEECH }, 526 527 /* Realtek 8852CE Bluetooth devices */ 528 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 529 BTUSB_WIDEBAND_SPEECH }, 530 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 531 BTUSB_WIDEBAND_SPEECH }, 532 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 533 BTUSB_WIDEBAND_SPEECH }, 534 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 535 BTUSB_WIDEBAND_SPEECH }, 536 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 537 BTUSB_WIDEBAND_SPEECH }, 538 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 539 BTUSB_WIDEBAND_SPEECH }, 540 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 541 BTUSB_WIDEBAND_SPEECH }, 542 543 /* Realtek 8852BE Bluetooth devices */ 544 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 545 BTUSB_WIDEBAND_SPEECH }, 546 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 547 BTUSB_WIDEBAND_SPEECH }, 548 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 549 BTUSB_WIDEBAND_SPEECH }, 550 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 551 BTUSB_WIDEBAND_SPEECH }, 552 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 553 BTUSB_WIDEBAND_SPEECH }, 554 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 555 BTUSB_WIDEBAND_SPEECH }, 556 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 557 BTUSB_WIDEBAND_SPEECH }, 558 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 559 BTUSB_WIDEBAND_SPEECH }, 560 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 561 BTUSB_WIDEBAND_SPEECH }, 562 563 /* Realtek Bluetooth devices */ 564 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 565 .driver_info = BTUSB_REALTEK }, 566 567 /* MediaTek Bluetooth devices */ 568 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 569 .driver_info = BTUSB_MEDIATEK | 570 BTUSB_WIDEBAND_SPEECH | 571 BTUSB_VALID_LE_STATES }, 572 573 /* Additional MediaTek MT7615E Bluetooth devices */ 574 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 575 576 /* Additional MediaTek MT7663 Bluetooth devices */ 577 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 578 BTUSB_WIDEBAND_SPEECH | 579 BTUSB_VALID_LE_STATES }, 580 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 581 BTUSB_WIDEBAND_SPEECH | 582 BTUSB_VALID_LE_STATES }, 583 584 /* Additional MediaTek MT7668 Bluetooth devices */ 585 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 586 BTUSB_WIDEBAND_SPEECH | 587 BTUSB_VALID_LE_STATES }, 588 589 /* Additional MediaTek MT7921 Bluetooth devices */ 590 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 591 BTUSB_WIDEBAND_SPEECH | 592 BTUSB_VALID_LE_STATES }, 593 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 594 BTUSB_WIDEBAND_SPEECH | 595 BTUSB_VALID_LE_STATES }, 596 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 597 BTUSB_WIDEBAND_SPEECH | 598 BTUSB_VALID_LE_STATES }, 599 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 600 BTUSB_WIDEBAND_SPEECH | 601 BTUSB_VALID_LE_STATES }, 602 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 603 BTUSB_WIDEBAND_SPEECH | 604 BTUSB_VALID_LE_STATES }, 605 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 606 BTUSB_WIDEBAND_SPEECH | 607 BTUSB_VALID_LE_STATES }, 608 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 609 BTUSB_WIDEBAND_SPEECH | 610 BTUSB_VALID_LE_STATES }, 611 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 612 BTUSB_WIDEBAND_SPEECH | 613 BTUSB_VALID_LE_STATES }, 614 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 615 BTUSB_WIDEBAND_SPEECH | 616 BTUSB_VALID_LE_STATES }, 617 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 618 BTUSB_WIDEBAND_SPEECH | 619 BTUSB_VALID_LE_STATES }, 620 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 621 BTUSB_WIDEBAND_SPEECH | 622 BTUSB_VALID_LE_STATES }, 623 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 624 BTUSB_WIDEBAND_SPEECH | 625 BTUSB_VALID_LE_STATES }, 626 627 /* MediaTek MT7922A Bluetooth devices */ 628 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 629 BTUSB_WIDEBAND_SPEECH | 630 BTUSB_VALID_LE_STATES }, 631 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 632 BTUSB_WIDEBAND_SPEECH | 633 BTUSB_VALID_LE_STATES }, 634 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 635 BTUSB_WIDEBAND_SPEECH | 636 BTUSB_VALID_LE_STATES }, 637 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 638 BTUSB_WIDEBAND_SPEECH | 639 BTUSB_VALID_LE_STATES }, 640 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 641 BTUSB_WIDEBAND_SPEECH | 642 BTUSB_VALID_LE_STATES }, 643 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 644 BTUSB_WIDEBAND_SPEECH | 645 BTUSB_VALID_LE_STATES }, 646 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 647 BTUSB_WIDEBAND_SPEECH | 648 BTUSB_VALID_LE_STATES }, 649 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 650 BTUSB_WIDEBAND_SPEECH | 651 BTUSB_VALID_LE_STATES }, 652 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 653 BTUSB_WIDEBAND_SPEECH | 654 BTUSB_VALID_LE_STATES }, 655 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 656 BTUSB_WIDEBAND_SPEECH | 657 BTUSB_VALID_LE_STATES }, 658 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 659 BTUSB_WIDEBAND_SPEECH | 660 BTUSB_VALID_LE_STATES }, 661 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 662 BTUSB_WIDEBAND_SPEECH | 663 BTUSB_VALID_LE_STATES }, 664 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 665 BTUSB_WIDEBAND_SPEECH | 666 BTUSB_VALID_LE_STATES }, 667 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 668 BTUSB_WIDEBAND_SPEECH | 669 BTUSB_VALID_LE_STATES }, 670 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 671 BTUSB_WIDEBAND_SPEECH | 672 BTUSB_VALID_LE_STATES }, 673 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 674 BTUSB_WIDEBAND_SPEECH | 675 BTUSB_VALID_LE_STATES }, 676 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 677 BTUSB_WIDEBAND_SPEECH | 678 BTUSB_VALID_LE_STATES }, 679 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 680 BTUSB_WIDEBAND_SPEECH | 681 BTUSB_VALID_LE_STATES }, 682 683 /* Additional MediaTek MT7925 Bluetooth devices */ 684 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 685 BTUSB_WIDEBAND_SPEECH }, 686 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 687 BTUSB_WIDEBAND_SPEECH | 688 BTUSB_VALID_LE_STATES }, 689 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 690 BTUSB_WIDEBAND_SPEECH | 691 BTUSB_VALID_LE_STATES }, 692 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 693 BTUSB_WIDEBAND_SPEECH | 694 BTUSB_VALID_LE_STATES }, 695 696 /* Additional Realtek 8723AE Bluetooth devices */ 697 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 698 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 699 700 /* Additional Realtek 8723BE Bluetooth devices */ 701 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 702 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 703 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 704 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 705 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 706 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 707 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 708 709 /* Additional Realtek 8723BU Bluetooth devices */ 710 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 711 712 /* Additional Realtek 8723DE Bluetooth devices */ 713 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 714 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 715 716 /* Additional Realtek 8761BUV Bluetooth devices */ 717 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 718 BTUSB_WIDEBAND_SPEECH }, 719 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 720 BTUSB_WIDEBAND_SPEECH }, 721 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 722 BTUSB_WIDEBAND_SPEECH }, 723 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 724 BTUSB_WIDEBAND_SPEECH }, 725 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 726 BTUSB_WIDEBAND_SPEECH }, 727 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 728 BTUSB_WIDEBAND_SPEECH }, 729 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 730 BTUSB_WIDEBAND_SPEECH }, 731 732 /* Additional Realtek 8821AE Bluetooth devices */ 733 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 734 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 735 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 736 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 737 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 738 739 /* Additional Realtek 8822BE Bluetooth devices */ 740 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 741 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 742 743 /* Additional Realtek 8822CE Bluetooth devices */ 744 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 745 BTUSB_WIDEBAND_SPEECH }, 746 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 747 BTUSB_WIDEBAND_SPEECH }, 748 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 749 BTUSB_WIDEBAND_SPEECH }, 750 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 751 BTUSB_WIDEBAND_SPEECH }, 752 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 753 BTUSB_WIDEBAND_SPEECH }, 754 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 755 BTUSB_WIDEBAND_SPEECH }, 756 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 757 BTUSB_WIDEBAND_SPEECH }, 758 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 759 BTUSB_WIDEBAND_SPEECH }, 760 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 761 BTUSB_WIDEBAND_SPEECH }, 762 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 763 BTUSB_WIDEBAND_SPEECH }, 764 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 765 BTUSB_WIDEBAND_SPEECH }, 766 767 /* Actions Semiconductor ATS2851 based devices */ 768 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 769 770 /* Silicon Wave based devices */ 771 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 772 773 { } /* Terminating entry */ 774 }; 775 776 /* The Bluetooth USB module build into some devices needs to be reset on resume, 777 * this is a problem with the platform (likely shutting off all power) not with 778 * the module itself. So we use a DMI list to match known broken platforms. 779 */ 780 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 781 { 782 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 783 .matches = { 784 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 785 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 786 }, 787 }, 788 { 789 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 790 .matches = { 791 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 792 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 793 }, 794 }, 795 { 796 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 797 .matches = { 798 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 799 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 800 }, 801 }, 802 {} 803 }; 804 805 struct qca_dump_info { 806 /* fields for dump collection */ 807 u16 id_vendor; 808 u16 id_product; 809 u32 fw_version; 810 u32 controller_id; 811 u32 ram_dump_size; 812 u16 ram_dump_seqno; 813 }; 814 815 #define BTUSB_MAX_ISOC_FRAMES 10 816 817 #define BTUSB_INTR_RUNNING 0 818 #define BTUSB_BULK_RUNNING 1 819 #define BTUSB_ISOC_RUNNING 2 820 #define BTUSB_SUSPENDING 3 821 #define BTUSB_DID_ISO_RESUME 4 822 #define BTUSB_BOOTLOADER 5 823 #define BTUSB_DOWNLOADING 6 824 #define BTUSB_FIRMWARE_LOADED 7 825 #define BTUSB_FIRMWARE_FAILED 8 826 #define BTUSB_BOOTING 9 827 #define BTUSB_DIAG_RUNNING 10 828 #define BTUSB_OOB_WAKE_ENABLED 11 829 #define BTUSB_HW_RESET_ACTIVE 12 830 #define BTUSB_TX_WAIT_VND_EVT 13 831 #define BTUSB_WAKEUP_AUTOSUSPEND 14 832 #define BTUSB_USE_ALT3_FOR_WBS 15 833 #define BTUSB_ALT6_CONTINUOUS_TX 16 834 #define BTUSB_HW_SSR_ACTIVE 17 835 836 struct btusb_data { 837 struct hci_dev *hdev; 838 struct usb_device *udev; 839 struct usb_interface *intf; 840 struct usb_interface *isoc; 841 struct usb_interface *diag; 842 unsigned isoc_ifnum; 843 844 unsigned long flags; 845 846 bool poll_sync; 847 int intr_interval; 848 struct work_struct work; 849 struct work_struct waker; 850 struct delayed_work rx_work; 851 852 struct sk_buff_head acl_q; 853 854 struct usb_anchor deferred; 855 struct usb_anchor tx_anchor; 856 int tx_in_flight; 857 spinlock_t txlock; 858 859 struct usb_anchor intr_anchor; 860 struct usb_anchor bulk_anchor; 861 struct usb_anchor isoc_anchor; 862 struct usb_anchor diag_anchor; 863 struct usb_anchor ctrl_anchor; 864 spinlock_t rxlock; 865 866 struct sk_buff *evt_skb; 867 struct sk_buff *acl_skb; 868 struct sk_buff *sco_skb; 869 870 struct usb_endpoint_descriptor *intr_ep; 871 struct usb_endpoint_descriptor *bulk_tx_ep; 872 struct usb_endpoint_descriptor *bulk_rx_ep; 873 struct usb_endpoint_descriptor *isoc_tx_ep; 874 struct usb_endpoint_descriptor *isoc_rx_ep; 875 struct usb_endpoint_descriptor *diag_tx_ep; 876 struct usb_endpoint_descriptor *diag_rx_ep; 877 878 struct gpio_desc *reset_gpio; 879 880 __u8 cmdreq_type; 881 __u8 cmdreq; 882 883 unsigned int sco_num; 884 unsigned int air_mode; 885 bool usb_alt6_packet_flow; 886 int isoc_altsetting; 887 int suspend_count; 888 889 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 890 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 891 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 892 893 int (*setup_on_usb)(struct hci_dev *hdev); 894 895 int (*suspend)(struct hci_dev *hdev); 896 int (*resume)(struct hci_dev *hdev); 897 int (*disconnect)(struct hci_dev *hdev); 898 899 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 900 unsigned cmd_timeout_cnt; 901 902 struct qca_dump_info qca_dump; 903 }; 904 905 static void btusb_reset(struct hci_dev *hdev) 906 { 907 struct btusb_data *data; 908 int err; 909 910 if (hdev->reset) { 911 hdev->reset(hdev); 912 return; 913 } 914 915 data = hci_get_drvdata(hdev); 916 /* This is not an unbalanced PM reference since the device will reset */ 917 err = usb_autopm_get_interface(data->intf); 918 if (err) { 919 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 920 return; 921 } 922 923 bt_dev_err(hdev, "Resetting usb device."); 924 usb_queue_reset_device(data->intf); 925 } 926 927 static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 928 { 929 struct btusb_data *data = hci_get_drvdata(hdev); 930 struct gpio_desc *reset_gpio = data->reset_gpio; 931 struct btintel_data *intel_data = hci_get_priv(hdev); 932 933 if (++data->cmd_timeout_cnt < 5) 934 return; 935 936 if (intel_data->acpi_reset_method) { 937 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 938 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 939 return; 940 } 941 942 bt_dev_err(hdev, "Initiating acpi reset method"); 943 /* If ACPI reset method fails, lets try with legacy GPIO 944 * toggling 945 */ 946 if (!intel_data->acpi_reset_method(hdev)) { 947 return; 948 } 949 } 950 951 if (!reset_gpio) { 952 btusb_reset(hdev); 953 return; 954 } 955 956 /* 957 * Toggle the hard reset line if the platform provides one. The reset 958 * is going to yank the device off the USB and then replug. So doing 959 * once is enough. The cleanup is handled correctly on the way out 960 * (standard USB disconnect), and the new device is detected cleanly 961 * and bound to the driver again like it should be. 962 */ 963 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 964 bt_dev_err(hdev, "last reset failed? Not resetting again"); 965 return; 966 } 967 968 bt_dev_err(hdev, "Initiating HW reset via gpio"); 969 gpiod_set_value_cansleep(reset_gpio, 1); 970 msleep(100); 971 gpiod_set_value_cansleep(reset_gpio, 0); 972 } 973 974 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 975 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 976 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 977 978 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 979 980 struct rtk_dev_coredump_hdr { 981 u8 type; 982 u8 code; 983 u8 reserved[2]; 984 } __packed; 985 986 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 987 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 988 { 989 struct sk_buff *skb; 990 991 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 992 if (!skb) 993 return; 994 995 skb_put_data(skb, hdr, sizeof(*hdr)); 996 if (len) 997 skb_put_data(skb, buf, len); 998 999 if (!hci_devcd_init(hdev, skb->len)) { 1000 hci_devcd_append(hdev, skb); 1001 hci_devcd_complete(hdev); 1002 } else { 1003 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 1004 kfree_skb(skb); 1005 } 1006 } 1007 1008 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) 1009 { 1010 struct btusb_data *data = hci_get_drvdata(hdev); 1011 struct gpio_desc *reset_gpio = data->reset_gpio; 1012 struct rtk_dev_coredump_hdr hdr = { 1013 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1014 }; 1015 1016 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1017 1018 if (++data->cmd_timeout_cnt < 5) 1019 return; 1020 1021 if (!reset_gpio) { 1022 btusb_reset(hdev); 1023 return; 1024 } 1025 1026 /* Toggle the hard reset line. The Realtek device is going to 1027 * yank itself off the USB and then replug. The cleanup is handled 1028 * correctly on the way out (standard USB disconnect), and the new 1029 * device is detected cleanly and bound to the driver again like 1030 * it should be. 1031 */ 1032 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1033 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1034 return; 1035 } 1036 1037 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1038 gpiod_set_value_cansleep(reset_gpio, 1); 1039 msleep(200); 1040 gpiod_set_value_cansleep(reset_gpio, 0); 1041 } 1042 1043 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1044 { 1045 struct rtk_dev_coredump_hdr hdr = { 1046 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1047 .code = code, 1048 }; 1049 1050 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1051 1052 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1053 } 1054 1055 static void btusb_qca_cmd_timeout(struct hci_dev *hdev) 1056 { 1057 struct btusb_data *data = hci_get_drvdata(hdev); 1058 struct gpio_desc *reset_gpio = data->reset_gpio; 1059 1060 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1061 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout"); 1062 return; 1063 } 1064 1065 if (++data->cmd_timeout_cnt < 5) 1066 return; 1067 1068 if (reset_gpio) { 1069 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1070 1071 /* Toggle the hard reset line. The qca bt device is going to 1072 * yank itself off the USB and then replug. The cleanup is handled 1073 * correctly on the way out (standard USB disconnect), and the new 1074 * device is detected cleanly and bound to the driver again like 1075 * it should be. 1076 */ 1077 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1078 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1079 return; 1080 } 1081 1082 gpiod_set_value_cansleep(reset_gpio, 0); 1083 msleep(200); 1084 gpiod_set_value_cansleep(reset_gpio, 1); 1085 1086 return; 1087 } 1088 1089 btusb_reset(hdev); 1090 } 1091 1092 static inline void btusb_free_frags(struct btusb_data *data) 1093 { 1094 unsigned long flags; 1095 1096 spin_lock_irqsave(&data->rxlock, flags); 1097 1098 dev_kfree_skb_irq(data->evt_skb); 1099 data->evt_skb = NULL; 1100 1101 dev_kfree_skb_irq(data->acl_skb); 1102 data->acl_skb = NULL; 1103 1104 dev_kfree_skb_irq(data->sco_skb); 1105 data->sco_skb = NULL; 1106 1107 spin_unlock_irqrestore(&data->rxlock, flags); 1108 } 1109 1110 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1111 { 1112 if (data->intr_interval) { 1113 /* Trigger dequeue immediatelly if an event is received */ 1114 schedule_delayed_work(&data->rx_work, 0); 1115 } 1116 1117 return data->recv_event(data->hdev, skb); 1118 } 1119 1120 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1121 { 1122 struct sk_buff *skb; 1123 unsigned long flags; 1124 int err = 0; 1125 1126 spin_lock_irqsave(&data->rxlock, flags); 1127 skb = data->evt_skb; 1128 1129 while (count) { 1130 int len; 1131 1132 if (!skb) { 1133 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1134 if (!skb) { 1135 err = -ENOMEM; 1136 break; 1137 } 1138 1139 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1140 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1141 } 1142 1143 len = min_t(uint, hci_skb_expect(skb), count); 1144 skb_put_data(skb, buffer, len); 1145 1146 count -= len; 1147 buffer += len; 1148 hci_skb_expect(skb) -= len; 1149 1150 if (skb->len == HCI_EVENT_HDR_SIZE) { 1151 /* Complete event header */ 1152 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1153 1154 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1155 kfree_skb(skb); 1156 skb = NULL; 1157 1158 err = -EILSEQ; 1159 break; 1160 } 1161 } 1162 1163 if (!hci_skb_expect(skb)) { 1164 /* Complete frame */ 1165 btusb_recv_event(data, skb); 1166 skb = NULL; 1167 } 1168 } 1169 1170 data->evt_skb = skb; 1171 spin_unlock_irqrestore(&data->rxlock, flags); 1172 1173 return err; 1174 } 1175 1176 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1177 { 1178 /* Only queue ACL packet if intr_interval is set as it means 1179 * force_poll_sync has been enabled. 1180 */ 1181 if (!data->intr_interval) 1182 return data->recv_acl(data->hdev, skb); 1183 1184 skb_queue_tail(&data->acl_q, skb); 1185 schedule_delayed_work(&data->rx_work, data->intr_interval); 1186 1187 return 0; 1188 } 1189 1190 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1191 { 1192 struct sk_buff *skb; 1193 unsigned long flags; 1194 int err = 0; 1195 1196 spin_lock_irqsave(&data->rxlock, flags); 1197 skb = data->acl_skb; 1198 1199 while (count) { 1200 int len; 1201 1202 if (!skb) { 1203 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1204 if (!skb) { 1205 err = -ENOMEM; 1206 break; 1207 } 1208 1209 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1210 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1211 } 1212 1213 len = min_t(uint, hci_skb_expect(skb), count); 1214 skb_put_data(skb, buffer, len); 1215 1216 count -= len; 1217 buffer += len; 1218 hci_skb_expect(skb) -= len; 1219 1220 if (skb->len == HCI_ACL_HDR_SIZE) { 1221 __le16 dlen = hci_acl_hdr(skb)->dlen; 1222 1223 /* Complete ACL header */ 1224 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1225 1226 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1227 kfree_skb(skb); 1228 skb = NULL; 1229 1230 err = -EILSEQ; 1231 break; 1232 } 1233 } 1234 1235 if (!hci_skb_expect(skb)) { 1236 /* Complete frame */ 1237 btusb_recv_acl(data, skb); 1238 skb = NULL; 1239 } 1240 } 1241 1242 data->acl_skb = skb; 1243 spin_unlock_irqrestore(&data->rxlock, flags); 1244 1245 return err; 1246 } 1247 1248 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1249 struct hci_sco_hdr *hdr) 1250 { 1251 __u16 handle; 1252 1253 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1254 // Can't validate, userspace controls everything. 1255 return true; 1256 1257 /* 1258 * USB isochronous transfers are not designed to be reliable and may 1259 * lose fragments. When this happens, the next first fragment 1260 * encountered might actually be a continuation fragment. 1261 * Validate the handle to detect it and drop it, or else the upper 1262 * layer will get garbage for a while. 1263 */ 1264 1265 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1266 1267 switch (hci_conn_lookup_type(hdev, handle)) { 1268 case SCO_LINK: 1269 case ESCO_LINK: 1270 return true; 1271 default: 1272 return false; 1273 } 1274 } 1275 1276 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1277 { 1278 struct sk_buff *skb; 1279 unsigned long flags; 1280 int err = 0; 1281 1282 spin_lock_irqsave(&data->rxlock, flags); 1283 skb = data->sco_skb; 1284 1285 while (count) { 1286 int len; 1287 1288 if (!skb) { 1289 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1290 if (!skb) { 1291 err = -ENOMEM; 1292 break; 1293 } 1294 1295 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1296 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1297 } 1298 1299 len = min_t(uint, hci_skb_expect(skb), count); 1300 skb_put_data(skb, buffer, len); 1301 1302 count -= len; 1303 buffer += len; 1304 hci_skb_expect(skb) -= len; 1305 1306 if (skb->len == HCI_SCO_HDR_SIZE) { 1307 /* Complete SCO header */ 1308 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1309 1310 hci_skb_expect(skb) = hdr->dlen; 1311 1312 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1313 !btusb_validate_sco_handle(data->hdev, hdr)) { 1314 kfree_skb(skb); 1315 skb = NULL; 1316 1317 err = -EILSEQ; 1318 break; 1319 } 1320 } 1321 1322 if (!hci_skb_expect(skb)) { 1323 /* Complete frame */ 1324 hci_recv_frame(data->hdev, skb); 1325 skb = NULL; 1326 } 1327 } 1328 1329 data->sco_skb = skb; 1330 spin_unlock_irqrestore(&data->rxlock, flags); 1331 1332 return err; 1333 } 1334 1335 static void btusb_intr_complete(struct urb *urb) 1336 { 1337 struct hci_dev *hdev = urb->context; 1338 struct btusb_data *data = hci_get_drvdata(hdev); 1339 int err; 1340 1341 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1342 urb->actual_length); 1343 1344 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1345 return; 1346 1347 if (urb->status == 0) { 1348 hdev->stat.byte_rx += urb->actual_length; 1349 1350 if (btusb_recv_intr(data, urb->transfer_buffer, 1351 urb->actual_length) < 0) { 1352 bt_dev_err(hdev, "corrupted event packet"); 1353 hdev->stat.err_rx++; 1354 } 1355 } else if (urb->status == -ENOENT) { 1356 /* Avoid suspend failed when usb_kill_urb */ 1357 return; 1358 } 1359 1360 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1361 return; 1362 1363 usb_mark_last_busy(data->udev); 1364 usb_anchor_urb(urb, &data->intr_anchor); 1365 1366 err = usb_submit_urb(urb, GFP_ATOMIC); 1367 if (err < 0) { 1368 /* -EPERM: urb is being killed; 1369 * -ENODEV: device got disconnected 1370 */ 1371 if (err != -EPERM && err != -ENODEV) 1372 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1373 urb, -err); 1374 if (err != -EPERM) 1375 hci_cmd_sync_cancel(hdev, -err); 1376 usb_unanchor_urb(urb); 1377 } 1378 } 1379 1380 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1381 { 1382 struct btusb_data *data = hci_get_drvdata(hdev); 1383 struct urb *urb; 1384 unsigned char *buf; 1385 unsigned int pipe; 1386 int err, size; 1387 1388 BT_DBG("%s", hdev->name); 1389 1390 if (!data->intr_ep) 1391 return -ENODEV; 1392 1393 urb = usb_alloc_urb(0, mem_flags); 1394 if (!urb) 1395 return -ENOMEM; 1396 1397 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1398 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1399 /* Fake CSR devices don't seem to support sort-transter */ 1400 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1401 else 1402 /* Use maximum HCI Event size so the USB stack handles 1403 * ZPL/short-transfer automatically. 1404 */ 1405 size = HCI_MAX_EVENT_SIZE; 1406 1407 buf = kmalloc(size, mem_flags); 1408 if (!buf) { 1409 usb_free_urb(urb); 1410 return -ENOMEM; 1411 } 1412 1413 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1414 1415 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1416 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1417 1418 urb->transfer_flags |= URB_FREE_BUFFER; 1419 1420 usb_anchor_urb(urb, &data->intr_anchor); 1421 1422 err = usb_submit_urb(urb, mem_flags); 1423 if (err < 0) { 1424 if (err != -EPERM && err != -ENODEV) 1425 bt_dev_err(hdev, "urb %p submission failed (%d)", 1426 urb, -err); 1427 if (err != -EPERM) 1428 hci_cmd_sync_cancel(hdev, -err); 1429 usb_unanchor_urb(urb); 1430 } 1431 1432 /* Only initialize intr_interval if URB poll sync is enabled */ 1433 if (!data->poll_sync) 1434 goto done; 1435 1436 /* The units are frames (milliseconds) for full and low speed devices, 1437 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1438 * devices. 1439 * 1440 * This is done once on open/resume so it shouldn't change even if 1441 * force_poll_sync changes. 1442 */ 1443 switch (urb->dev->speed) { 1444 case USB_SPEED_SUPER_PLUS: 1445 case USB_SPEED_SUPER: /* units are 125us */ 1446 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1447 break; 1448 default: 1449 data->intr_interval = msecs_to_jiffies(urb->interval); 1450 break; 1451 } 1452 1453 done: 1454 usb_free_urb(urb); 1455 1456 return err; 1457 } 1458 1459 static void btusb_bulk_complete(struct urb *urb) 1460 { 1461 struct hci_dev *hdev = urb->context; 1462 struct btusb_data *data = hci_get_drvdata(hdev); 1463 int err; 1464 1465 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1466 urb->actual_length); 1467 1468 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1469 return; 1470 1471 if (urb->status == 0) { 1472 hdev->stat.byte_rx += urb->actual_length; 1473 1474 if (data->recv_bulk(data, urb->transfer_buffer, 1475 urb->actual_length) < 0) { 1476 bt_dev_err(hdev, "corrupted ACL packet"); 1477 hdev->stat.err_rx++; 1478 } 1479 } else if (urb->status == -ENOENT) { 1480 /* Avoid suspend failed when usb_kill_urb */ 1481 return; 1482 } 1483 1484 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1485 return; 1486 1487 usb_anchor_urb(urb, &data->bulk_anchor); 1488 usb_mark_last_busy(data->udev); 1489 1490 err = usb_submit_urb(urb, GFP_ATOMIC); 1491 if (err < 0) { 1492 /* -EPERM: urb is being killed; 1493 * -ENODEV: device got disconnected 1494 */ 1495 if (err != -EPERM && err != -ENODEV) 1496 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1497 urb, -err); 1498 usb_unanchor_urb(urb); 1499 } 1500 } 1501 1502 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1503 { 1504 struct btusb_data *data = hci_get_drvdata(hdev); 1505 struct urb *urb; 1506 unsigned char *buf; 1507 unsigned int pipe; 1508 int err, size = HCI_MAX_FRAME_SIZE; 1509 1510 BT_DBG("%s", hdev->name); 1511 1512 if (!data->bulk_rx_ep) 1513 return -ENODEV; 1514 1515 urb = usb_alloc_urb(0, mem_flags); 1516 if (!urb) 1517 return -ENOMEM; 1518 1519 buf = kmalloc(size, mem_flags); 1520 if (!buf) { 1521 usb_free_urb(urb); 1522 return -ENOMEM; 1523 } 1524 1525 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1526 1527 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1528 btusb_bulk_complete, hdev); 1529 1530 urb->transfer_flags |= URB_FREE_BUFFER; 1531 1532 usb_mark_last_busy(data->udev); 1533 usb_anchor_urb(urb, &data->bulk_anchor); 1534 1535 err = usb_submit_urb(urb, mem_flags); 1536 if (err < 0) { 1537 if (err != -EPERM && err != -ENODEV) 1538 bt_dev_err(hdev, "urb %p submission failed (%d)", 1539 urb, -err); 1540 usb_unanchor_urb(urb); 1541 } 1542 1543 usb_free_urb(urb); 1544 1545 return err; 1546 } 1547 1548 static void btusb_isoc_complete(struct urb *urb) 1549 { 1550 struct hci_dev *hdev = urb->context; 1551 struct btusb_data *data = hci_get_drvdata(hdev); 1552 int i, err; 1553 1554 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1555 urb->actual_length); 1556 1557 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1558 return; 1559 1560 if (urb->status == 0) { 1561 for (i = 0; i < urb->number_of_packets; i++) { 1562 unsigned int offset = urb->iso_frame_desc[i].offset; 1563 unsigned int length = urb->iso_frame_desc[i].actual_length; 1564 1565 if (urb->iso_frame_desc[i].status) 1566 continue; 1567 1568 hdev->stat.byte_rx += length; 1569 1570 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1571 length) < 0) { 1572 bt_dev_err(hdev, "corrupted SCO packet"); 1573 hdev->stat.err_rx++; 1574 } 1575 } 1576 } else if (urb->status == -ENOENT) { 1577 /* Avoid suspend failed when usb_kill_urb */ 1578 return; 1579 } 1580 1581 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1582 return; 1583 1584 usb_anchor_urb(urb, &data->isoc_anchor); 1585 1586 err = usb_submit_urb(urb, GFP_ATOMIC); 1587 if (err < 0) { 1588 /* -EPERM: urb is being killed; 1589 * -ENODEV: device got disconnected 1590 */ 1591 if (err != -EPERM && err != -ENODEV) 1592 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1593 urb, -err); 1594 usb_unanchor_urb(urb); 1595 } 1596 } 1597 1598 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1599 int mtu, struct btusb_data *data) 1600 { 1601 int i = 0, offset = 0; 1602 unsigned int interval; 1603 1604 BT_DBG("len %d mtu %d", len, mtu); 1605 1606 /* For mSBC ALT 6 settings some chips need to transmit the data 1607 * continuously without the zero length of USB packets. 1608 */ 1609 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1610 goto ignore_usb_alt6_packet_flow; 1611 1612 /* For mSBC ALT 6 setting the host will send the packet at continuous 1613 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1614 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1615 * To maintain the rate we send 63bytes of usb packets alternatively for 1616 * 7ms and 8ms to maintain the rate as 7.5ms. 1617 */ 1618 if (data->usb_alt6_packet_flow) { 1619 interval = 7; 1620 data->usb_alt6_packet_flow = false; 1621 } else { 1622 interval = 6; 1623 data->usb_alt6_packet_flow = true; 1624 } 1625 1626 for (i = 0; i < interval; i++) { 1627 urb->iso_frame_desc[i].offset = offset; 1628 urb->iso_frame_desc[i].length = offset; 1629 } 1630 1631 ignore_usb_alt6_packet_flow: 1632 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1633 urb->iso_frame_desc[i].offset = offset; 1634 urb->iso_frame_desc[i].length = len; 1635 i++; 1636 } 1637 1638 urb->number_of_packets = i; 1639 } 1640 1641 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1642 { 1643 int i, offset = 0; 1644 1645 BT_DBG("len %d mtu %d", len, mtu); 1646 1647 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1648 i++, offset += mtu, len -= mtu) { 1649 urb->iso_frame_desc[i].offset = offset; 1650 urb->iso_frame_desc[i].length = mtu; 1651 } 1652 1653 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1654 urb->iso_frame_desc[i].offset = offset; 1655 urb->iso_frame_desc[i].length = len; 1656 i++; 1657 } 1658 1659 urb->number_of_packets = i; 1660 } 1661 1662 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1663 { 1664 struct btusb_data *data = hci_get_drvdata(hdev); 1665 struct urb *urb; 1666 unsigned char *buf; 1667 unsigned int pipe; 1668 int err, size; 1669 1670 BT_DBG("%s", hdev->name); 1671 1672 if (!data->isoc_rx_ep) 1673 return -ENODEV; 1674 1675 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1676 if (!urb) 1677 return -ENOMEM; 1678 1679 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1680 BTUSB_MAX_ISOC_FRAMES; 1681 1682 buf = kmalloc(size, mem_flags); 1683 if (!buf) { 1684 usb_free_urb(urb); 1685 return -ENOMEM; 1686 } 1687 1688 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1689 1690 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1691 hdev, data->isoc_rx_ep->bInterval); 1692 1693 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1694 1695 __fill_isoc_descriptor(urb, size, 1696 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1697 1698 usb_anchor_urb(urb, &data->isoc_anchor); 1699 1700 err = usb_submit_urb(urb, mem_flags); 1701 if (err < 0) { 1702 if (err != -EPERM && err != -ENODEV) 1703 bt_dev_err(hdev, "urb %p submission failed (%d)", 1704 urb, -err); 1705 usb_unanchor_urb(urb); 1706 } 1707 1708 usb_free_urb(urb); 1709 1710 return err; 1711 } 1712 1713 static void btusb_diag_complete(struct urb *urb) 1714 { 1715 struct hci_dev *hdev = urb->context; 1716 struct btusb_data *data = hci_get_drvdata(hdev); 1717 int err; 1718 1719 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1720 urb->actual_length); 1721 1722 if (urb->status == 0) { 1723 struct sk_buff *skb; 1724 1725 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1726 if (skb) { 1727 skb_put_data(skb, urb->transfer_buffer, 1728 urb->actual_length); 1729 hci_recv_diag(hdev, skb); 1730 } 1731 } else if (urb->status == -ENOENT) { 1732 /* Avoid suspend failed when usb_kill_urb */ 1733 return; 1734 } 1735 1736 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1737 return; 1738 1739 usb_anchor_urb(urb, &data->diag_anchor); 1740 usb_mark_last_busy(data->udev); 1741 1742 err = usb_submit_urb(urb, GFP_ATOMIC); 1743 if (err < 0) { 1744 /* -EPERM: urb is being killed; 1745 * -ENODEV: device got disconnected 1746 */ 1747 if (err != -EPERM && err != -ENODEV) 1748 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1749 urb, -err); 1750 usb_unanchor_urb(urb); 1751 } 1752 } 1753 1754 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1755 { 1756 struct btusb_data *data = hci_get_drvdata(hdev); 1757 struct urb *urb; 1758 unsigned char *buf; 1759 unsigned int pipe; 1760 int err, size = HCI_MAX_FRAME_SIZE; 1761 1762 BT_DBG("%s", hdev->name); 1763 1764 if (!data->diag_rx_ep) 1765 return -ENODEV; 1766 1767 urb = usb_alloc_urb(0, mem_flags); 1768 if (!urb) 1769 return -ENOMEM; 1770 1771 buf = kmalloc(size, mem_flags); 1772 if (!buf) { 1773 usb_free_urb(urb); 1774 return -ENOMEM; 1775 } 1776 1777 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1778 1779 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1780 btusb_diag_complete, hdev); 1781 1782 urb->transfer_flags |= URB_FREE_BUFFER; 1783 1784 usb_mark_last_busy(data->udev); 1785 usb_anchor_urb(urb, &data->diag_anchor); 1786 1787 err = usb_submit_urb(urb, mem_flags); 1788 if (err < 0) { 1789 if (err != -EPERM && err != -ENODEV) 1790 bt_dev_err(hdev, "urb %p submission failed (%d)", 1791 urb, -err); 1792 usb_unanchor_urb(urb); 1793 } 1794 1795 usb_free_urb(urb); 1796 1797 return err; 1798 } 1799 1800 static void btusb_tx_complete(struct urb *urb) 1801 { 1802 struct sk_buff *skb = urb->context; 1803 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1804 struct btusb_data *data = hci_get_drvdata(hdev); 1805 unsigned long flags; 1806 1807 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1808 urb->actual_length); 1809 1810 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1811 goto done; 1812 1813 if (!urb->status) { 1814 hdev->stat.byte_tx += urb->transfer_buffer_length; 1815 } else { 1816 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1817 hci_cmd_sync_cancel(hdev, -urb->status); 1818 hdev->stat.err_tx++; 1819 } 1820 1821 done: 1822 spin_lock_irqsave(&data->txlock, flags); 1823 data->tx_in_flight--; 1824 spin_unlock_irqrestore(&data->txlock, flags); 1825 1826 kfree(urb->setup_packet); 1827 1828 kfree_skb(skb); 1829 } 1830 1831 static void btusb_isoc_tx_complete(struct urb *urb) 1832 { 1833 struct sk_buff *skb = urb->context; 1834 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1835 1836 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1837 urb->actual_length); 1838 1839 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1840 goto done; 1841 1842 if (!urb->status) 1843 hdev->stat.byte_tx += urb->transfer_buffer_length; 1844 else 1845 hdev->stat.err_tx++; 1846 1847 done: 1848 kfree(urb->setup_packet); 1849 1850 kfree_skb(skb); 1851 } 1852 1853 static int btusb_open(struct hci_dev *hdev) 1854 { 1855 struct btusb_data *data = hci_get_drvdata(hdev); 1856 int err; 1857 1858 BT_DBG("%s", hdev->name); 1859 1860 err = usb_autopm_get_interface(data->intf); 1861 if (err < 0) 1862 return err; 1863 1864 /* Patching USB firmware files prior to starting any URBs of HCI path 1865 * It is more safe to use USB bulk channel for downloading USB patch 1866 */ 1867 if (data->setup_on_usb) { 1868 err = data->setup_on_usb(hdev); 1869 if (err < 0) 1870 goto setup_fail; 1871 } 1872 1873 data->intf->needs_remote_wakeup = 1; 1874 1875 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1876 goto done; 1877 1878 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1879 if (err < 0) 1880 goto failed; 1881 1882 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1883 if (err < 0) { 1884 usb_kill_anchored_urbs(&data->intr_anchor); 1885 goto failed; 1886 } 1887 1888 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1889 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1890 1891 if (data->diag) { 1892 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1893 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1894 } 1895 1896 done: 1897 usb_autopm_put_interface(data->intf); 1898 return 0; 1899 1900 failed: 1901 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1902 setup_fail: 1903 usb_autopm_put_interface(data->intf); 1904 return err; 1905 } 1906 1907 static void btusb_stop_traffic(struct btusb_data *data) 1908 { 1909 usb_kill_anchored_urbs(&data->intr_anchor); 1910 usb_kill_anchored_urbs(&data->bulk_anchor); 1911 usb_kill_anchored_urbs(&data->isoc_anchor); 1912 usb_kill_anchored_urbs(&data->diag_anchor); 1913 usb_kill_anchored_urbs(&data->ctrl_anchor); 1914 } 1915 1916 static int btusb_close(struct hci_dev *hdev) 1917 { 1918 struct btusb_data *data = hci_get_drvdata(hdev); 1919 int err; 1920 1921 BT_DBG("%s", hdev->name); 1922 1923 cancel_delayed_work(&data->rx_work); 1924 cancel_work_sync(&data->work); 1925 cancel_work_sync(&data->waker); 1926 1927 skb_queue_purge(&data->acl_q); 1928 1929 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1930 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1931 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1932 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1933 1934 btusb_stop_traffic(data); 1935 btusb_free_frags(data); 1936 1937 err = usb_autopm_get_interface(data->intf); 1938 if (err < 0) 1939 goto failed; 1940 1941 data->intf->needs_remote_wakeup = 0; 1942 1943 /* Enable remote wake up for auto-suspend */ 1944 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1945 data->intf->needs_remote_wakeup = 1; 1946 1947 usb_autopm_put_interface(data->intf); 1948 1949 failed: 1950 usb_scuttle_anchored_urbs(&data->deferred); 1951 return 0; 1952 } 1953 1954 static int btusb_flush(struct hci_dev *hdev) 1955 { 1956 struct btusb_data *data = hci_get_drvdata(hdev); 1957 1958 BT_DBG("%s", hdev->name); 1959 1960 cancel_delayed_work(&data->rx_work); 1961 1962 skb_queue_purge(&data->acl_q); 1963 1964 usb_kill_anchored_urbs(&data->tx_anchor); 1965 btusb_free_frags(data); 1966 1967 return 0; 1968 } 1969 1970 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1971 { 1972 struct btusb_data *data = hci_get_drvdata(hdev); 1973 struct usb_ctrlrequest *dr; 1974 struct urb *urb; 1975 unsigned int pipe; 1976 1977 urb = usb_alloc_urb(0, GFP_KERNEL); 1978 if (!urb) 1979 return ERR_PTR(-ENOMEM); 1980 1981 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1982 if (!dr) { 1983 usb_free_urb(urb); 1984 return ERR_PTR(-ENOMEM); 1985 } 1986 1987 dr->bRequestType = data->cmdreq_type; 1988 dr->bRequest = data->cmdreq; 1989 dr->wIndex = 0; 1990 dr->wValue = 0; 1991 dr->wLength = __cpu_to_le16(skb->len); 1992 1993 pipe = usb_sndctrlpipe(data->udev, 0x00); 1994 1995 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1996 skb->data, skb->len, btusb_tx_complete, skb); 1997 1998 skb->dev = (void *)hdev; 1999 2000 return urb; 2001 } 2002 2003 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2004 { 2005 struct btusb_data *data = hci_get_drvdata(hdev); 2006 struct urb *urb; 2007 unsigned int pipe; 2008 2009 if (!data->bulk_tx_ep) 2010 return ERR_PTR(-ENODEV); 2011 2012 urb = usb_alloc_urb(0, GFP_KERNEL); 2013 if (!urb) 2014 return ERR_PTR(-ENOMEM); 2015 2016 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2017 2018 usb_fill_bulk_urb(urb, data->udev, pipe, 2019 skb->data, skb->len, btusb_tx_complete, skb); 2020 2021 skb->dev = (void *)hdev; 2022 2023 return urb; 2024 } 2025 2026 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2027 { 2028 struct btusb_data *data = hci_get_drvdata(hdev); 2029 struct urb *urb; 2030 unsigned int pipe; 2031 2032 if (!data->isoc_tx_ep) 2033 return ERR_PTR(-ENODEV); 2034 2035 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2036 if (!urb) 2037 return ERR_PTR(-ENOMEM); 2038 2039 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2040 2041 usb_fill_int_urb(urb, data->udev, pipe, 2042 skb->data, skb->len, btusb_isoc_tx_complete, 2043 skb, data->isoc_tx_ep->bInterval); 2044 2045 urb->transfer_flags = URB_ISO_ASAP; 2046 2047 if (data->isoc_altsetting == 6) 2048 __fill_isoc_descriptor_msbc(urb, skb->len, 2049 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2050 data); 2051 else 2052 __fill_isoc_descriptor(urb, skb->len, 2053 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2054 skb->dev = (void *)hdev; 2055 2056 return urb; 2057 } 2058 2059 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2060 { 2061 struct btusb_data *data = hci_get_drvdata(hdev); 2062 int err; 2063 2064 usb_anchor_urb(urb, &data->tx_anchor); 2065 2066 err = usb_submit_urb(urb, GFP_KERNEL); 2067 if (err < 0) { 2068 if (err != -EPERM && err != -ENODEV) 2069 bt_dev_err(hdev, "urb %p submission failed (%d)", 2070 urb, -err); 2071 kfree(urb->setup_packet); 2072 usb_unanchor_urb(urb); 2073 } else { 2074 usb_mark_last_busy(data->udev); 2075 } 2076 2077 usb_free_urb(urb); 2078 return err; 2079 } 2080 2081 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2082 { 2083 struct btusb_data *data = hci_get_drvdata(hdev); 2084 unsigned long flags; 2085 bool suspending; 2086 2087 spin_lock_irqsave(&data->txlock, flags); 2088 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2089 if (!suspending) 2090 data->tx_in_flight++; 2091 spin_unlock_irqrestore(&data->txlock, flags); 2092 2093 if (!suspending) 2094 return submit_tx_urb(hdev, urb); 2095 2096 usb_anchor_urb(urb, &data->deferred); 2097 schedule_work(&data->waker); 2098 2099 usb_free_urb(urb); 2100 return 0; 2101 } 2102 2103 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2104 { 2105 struct urb *urb; 2106 2107 BT_DBG("%s", hdev->name); 2108 2109 switch (hci_skb_pkt_type(skb)) { 2110 case HCI_COMMAND_PKT: 2111 urb = alloc_ctrl_urb(hdev, skb); 2112 if (IS_ERR(urb)) 2113 return PTR_ERR(urb); 2114 2115 hdev->stat.cmd_tx++; 2116 return submit_or_queue_tx_urb(hdev, urb); 2117 2118 case HCI_ACLDATA_PKT: 2119 urb = alloc_bulk_urb(hdev, skb); 2120 if (IS_ERR(urb)) 2121 return PTR_ERR(urb); 2122 2123 hdev->stat.acl_tx++; 2124 return submit_or_queue_tx_urb(hdev, urb); 2125 2126 case HCI_SCODATA_PKT: 2127 if (hci_conn_num(hdev, SCO_LINK) < 1) 2128 return -ENODEV; 2129 2130 urb = alloc_isoc_urb(hdev, skb); 2131 if (IS_ERR(urb)) 2132 return PTR_ERR(urb); 2133 2134 hdev->stat.sco_tx++; 2135 return submit_tx_urb(hdev, urb); 2136 2137 case HCI_ISODATA_PKT: 2138 urb = alloc_bulk_urb(hdev, skb); 2139 if (IS_ERR(urb)) 2140 return PTR_ERR(urb); 2141 2142 return submit_or_queue_tx_urb(hdev, urb); 2143 } 2144 2145 return -EILSEQ; 2146 } 2147 2148 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2149 { 2150 struct btusb_data *data = hci_get_drvdata(hdev); 2151 2152 BT_DBG("%s evt %d", hdev->name, evt); 2153 2154 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2155 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2156 data->air_mode = evt; 2157 schedule_work(&data->work); 2158 } 2159 } 2160 2161 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2162 { 2163 struct btusb_data *data = hci_get_drvdata(hdev); 2164 struct usb_interface *intf = data->isoc; 2165 struct usb_endpoint_descriptor *ep_desc; 2166 int i, err; 2167 2168 if (!data->isoc) 2169 return -ENODEV; 2170 2171 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2172 if (err < 0) { 2173 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2174 return err; 2175 } 2176 2177 data->isoc_altsetting = altsetting; 2178 2179 data->isoc_tx_ep = NULL; 2180 data->isoc_rx_ep = NULL; 2181 2182 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2183 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2184 2185 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2186 data->isoc_tx_ep = ep_desc; 2187 continue; 2188 } 2189 2190 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2191 data->isoc_rx_ep = ep_desc; 2192 continue; 2193 } 2194 } 2195 2196 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2197 bt_dev_err(hdev, "invalid SCO descriptors"); 2198 return -ENODEV; 2199 } 2200 2201 return 0; 2202 } 2203 2204 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2205 { 2206 struct btusb_data *data = hci_get_drvdata(hdev); 2207 int err; 2208 2209 if (data->isoc_altsetting != new_alts) { 2210 unsigned long flags; 2211 2212 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2213 usb_kill_anchored_urbs(&data->isoc_anchor); 2214 2215 /* When isochronous alternate setting needs to be 2216 * changed, because SCO connection has been added 2217 * or removed, a packet fragment may be left in the 2218 * reassembling state. This could lead to wrongly 2219 * assembled fragments. 2220 * 2221 * Clear outstanding fragment when selecting a new 2222 * alternate setting. 2223 */ 2224 spin_lock_irqsave(&data->rxlock, flags); 2225 dev_kfree_skb_irq(data->sco_skb); 2226 data->sco_skb = NULL; 2227 spin_unlock_irqrestore(&data->rxlock, flags); 2228 2229 err = __set_isoc_interface(hdev, new_alts); 2230 if (err < 0) 2231 return err; 2232 } 2233 2234 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2235 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2236 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2237 else 2238 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2239 } 2240 2241 return 0; 2242 } 2243 2244 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2245 int alt) 2246 { 2247 struct usb_interface *intf = data->isoc; 2248 int i; 2249 2250 BT_DBG("Looking for Alt no :%d", alt); 2251 2252 if (!intf) 2253 return NULL; 2254 2255 for (i = 0; i < intf->num_altsetting; i++) { 2256 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2257 return &intf->altsetting[i]; 2258 } 2259 2260 return NULL; 2261 } 2262 2263 static void btusb_work(struct work_struct *work) 2264 { 2265 struct btusb_data *data = container_of(work, struct btusb_data, work); 2266 struct hci_dev *hdev = data->hdev; 2267 int new_alts = 0; 2268 int err; 2269 2270 if (data->sco_num > 0) { 2271 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2272 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2273 if (err < 0) { 2274 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2275 usb_kill_anchored_urbs(&data->isoc_anchor); 2276 return; 2277 } 2278 2279 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2280 } 2281 2282 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2283 if (hdev->voice_setting & 0x0020) { 2284 static const int alts[3] = { 2, 4, 5 }; 2285 2286 new_alts = alts[data->sco_num - 1]; 2287 } else { 2288 new_alts = data->sco_num; 2289 } 2290 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2291 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2292 * many adapters do not support it. Alt 1 appears to 2293 * work for all adapters that do not have alt 6, and 2294 * which work with WBS at all. Some devices prefer 2295 * alt 3 (HCI payload >= 60 Bytes let air packet 2296 * data satisfy 60 bytes), requiring 2297 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2298 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2299 */ 2300 if (btusb_find_altsetting(data, 6)) 2301 new_alts = 6; 2302 else if (btusb_find_altsetting(data, 3) && 2303 hdev->sco_mtu >= 72 && 2304 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2305 new_alts = 3; 2306 else 2307 new_alts = 1; 2308 } 2309 2310 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2311 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2312 } else { 2313 usb_kill_anchored_urbs(&data->isoc_anchor); 2314 2315 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2316 __set_isoc_interface(hdev, 0); 2317 2318 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2319 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2320 } 2321 } 2322 2323 static void btusb_waker(struct work_struct *work) 2324 { 2325 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2326 int err; 2327 2328 err = usb_autopm_get_interface(data->intf); 2329 if (err < 0) 2330 return; 2331 2332 usb_autopm_put_interface(data->intf); 2333 } 2334 2335 static void btusb_rx_work(struct work_struct *work) 2336 { 2337 struct btusb_data *data = container_of(work, struct btusb_data, 2338 rx_work.work); 2339 struct sk_buff *skb; 2340 2341 /* Dequeue ACL data received during the interval */ 2342 while ((skb = skb_dequeue(&data->acl_q))) 2343 data->recv_acl(data->hdev, skb); 2344 } 2345 2346 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2347 { 2348 struct sk_buff *skb; 2349 u8 val = 0x00; 2350 2351 BT_DBG("%s", hdev->name); 2352 2353 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2354 if (IS_ERR(skb)) 2355 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2356 else 2357 kfree_skb(skb); 2358 2359 return 0; 2360 } 2361 2362 static int btusb_setup_csr(struct hci_dev *hdev) 2363 { 2364 struct btusb_data *data = hci_get_drvdata(hdev); 2365 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2366 struct hci_rp_read_local_version *rp; 2367 struct sk_buff *skb; 2368 bool is_fake = false; 2369 int ret; 2370 2371 BT_DBG("%s", hdev->name); 2372 2373 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2374 HCI_INIT_TIMEOUT); 2375 if (IS_ERR(skb)) { 2376 int err = PTR_ERR(skb); 2377 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2378 return err; 2379 } 2380 2381 rp = skb_pull_data(skb, sizeof(*rp)); 2382 if (!rp) { 2383 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2384 kfree_skb(skb); 2385 return -EIO; 2386 } 2387 2388 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2389 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2390 2391 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2392 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2393 le16_to_cpu(rp->manufacturer)); 2394 2395 /* Detect a wide host of Chinese controllers that aren't CSR. 2396 * 2397 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2398 * 2399 * The main thing they have in common is that these are really popular low-cost 2400 * options that support newer Bluetooth versions but rely on heavy VID/PID 2401 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2402 * 2403 * We detect actual CSR devices by checking that the HCI manufacturer code 2404 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2405 * HCI rev values always match. As they both store the firmware number. 2406 */ 2407 if (le16_to_cpu(rp->manufacturer) != 10 || 2408 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2409 is_fake = true; 2410 2411 /* Known legit CSR firmware build numbers and their supported BT versions: 2412 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2413 * - 1.2 (0x2) -> 0x04d9, 0x0529 2414 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2415 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2416 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2417 * 2418 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2419 * support BT 1.1 only; so it's a dead giveaway when some 2420 * third-party BT 4.0 dongle reuses it. 2421 */ 2422 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2423 rp->hci_ver > BLUETOOTH_VER_1_1) 2424 is_fake = true; 2425 2426 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2427 rp->hci_ver > BLUETOOTH_VER_1_2) 2428 is_fake = true; 2429 2430 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2431 rp->hci_ver > BLUETOOTH_VER_2_0) 2432 is_fake = true; 2433 2434 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2435 rp->hci_ver > BLUETOOTH_VER_2_1) 2436 is_fake = true; 2437 2438 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2439 rp->hci_ver > BLUETOOTH_VER_4_0) 2440 is_fake = true; 2441 2442 /* Other clones which beat all the above checks */ 2443 else if (bcdDevice == 0x0134 && 2444 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2445 rp->hci_ver == BLUETOOTH_VER_2_0) 2446 is_fake = true; 2447 2448 if (is_fake) { 2449 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2450 2451 /* Generally these clones have big discrepancies between 2452 * advertised features and what's actually supported. 2453 * Probably will need to be expanded in the future; 2454 * without these the controller will lock up. 2455 */ 2456 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2457 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2458 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2459 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2460 2461 /* Clear the reset quirk since this is not an actual 2462 * early Bluetooth 1.1 device from CSR. 2463 */ 2464 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2465 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2466 2467 /* 2468 * Special workaround for these BT 4.0 chip clones, and potentially more: 2469 * 2470 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2471 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2472 * 2473 * These controllers are really messed-up. 2474 * 2475 * 1. Their bulk RX endpoint will never report any data unless 2476 * the device was suspended at least once (yes, really). 2477 * 2. They will not wakeup when autosuspended and receiving data 2478 * on their bulk RX endpoint from e.g. a keyboard or mouse 2479 * (IOW remote-wakeup support is broken for the bulk endpoint). 2480 * 2481 * To fix 1. enable runtime-suspend, force-suspend the 2482 * HCI and then wake-it up by disabling runtime-suspend. 2483 * 2484 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2485 * will still be autosuspended when it is not open. 2486 * 2487 * -- 2488 * 2489 * Because these are widespread problems we prefer generic solutions; so 2490 * apply this initialization quirk to every controller that gets here, 2491 * it should be harmless. The alternative is to not work at all. 2492 */ 2493 pm_runtime_allow(&data->udev->dev); 2494 2495 ret = pm_runtime_suspend(&data->udev->dev); 2496 if (ret >= 0) 2497 msleep(200); 2498 else 2499 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2500 2501 pm_runtime_forbid(&data->udev->dev); 2502 2503 device_set_wakeup_capable(&data->udev->dev, false); 2504 2505 /* Re-enable autosuspend if this was requested */ 2506 if (enable_autosuspend) 2507 usb_enable_autosuspend(data->udev); 2508 } 2509 2510 kfree_skb(skb); 2511 2512 return 0; 2513 } 2514 2515 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2516 { 2517 struct sk_buff *skb; 2518 struct hci_event_hdr *hdr; 2519 struct hci_ev_cmd_complete *evt; 2520 2521 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2522 if (!skb) 2523 return -ENOMEM; 2524 2525 hdr = skb_put(skb, sizeof(*hdr)); 2526 hdr->evt = HCI_EV_CMD_COMPLETE; 2527 hdr->plen = sizeof(*evt) + 1; 2528 2529 evt = skb_put(skb, sizeof(*evt)); 2530 evt->ncmd = 0x01; 2531 evt->opcode = cpu_to_le16(opcode); 2532 2533 skb_put_u8(skb, 0x00); 2534 2535 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2536 2537 return hci_recv_frame(hdev, skb); 2538 } 2539 2540 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2541 int count) 2542 { 2543 struct hci_dev *hdev = data->hdev; 2544 2545 /* When the device is in bootloader mode, then it can send 2546 * events via the bulk endpoint. These events are treated the 2547 * same way as the ones received from the interrupt endpoint. 2548 */ 2549 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2550 return btusb_recv_intr(data, buffer, count); 2551 2552 return btusb_recv_bulk(data, buffer, count); 2553 } 2554 2555 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2556 { 2557 struct urb *urb; 2558 2559 BT_DBG("%s", hdev->name); 2560 2561 switch (hci_skb_pkt_type(skb)) { 2562 case HCI_COMMAND_PKT: 2563 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2564 struct hci_command_hdr *cmd = (void *)skb->data; 2565 __u16 opcode = le16_to_cpu(cmd->opcode); 2566 2567 /* When in bootloader mode and the command 0xfc09 2568 * is received, it needs to be send down the 2569 * bulk endpoint. So allocate a bulk URB instead. 2570 */ 2571 if (opcode == 0xfc09) 2572 urb = alloc_bulk_urb(hdev, skb); 2573 else 2574 urb = alloc_ctrl_urb(hdev, skb); 2575 2576 /* When the 0xfc01 command is issued to boot into 2577 * the operational firmware, it will actually not 2578 * send a command complete event. To keep the flow 2579 * control working inject that event here. 2580 */ 2581 if (opcode == 0xfc01) 2582 inject_cmd_complete(hdev, opcode); 2583 } else { 2584 urb = alloc_ctrl_urb(hdev, skb); 2585 } 2586 if (IS_ERR(urb)) 2587 return PTR_ERR(urb); 2588 2589 hdev->stat.cmd_tx++; 2590 return submit_or_queue_tx_urb(hdev, urb); 2591 2592 case HCI_ACLDATA_PKT: 2593 urb = alloc_bulk_urb(hdev, skb); 2594 if (IS_ERR(urb)) 2595 return PTR_ERR(urb); 2596 2597 hdev->stat.acl_tx++; 2598 return submit_or_queue_tx_urb(hdev, urb); 2599 2600 case HCI_SCODATA_PKT: 2601 if (hci_conn_num(hdev, SCO_LINK) < 1) 2602 return -ENODEV; 2603 2604 urb = alloc_isoc_urb(hdev, skb); 2605 if (IS_ERR(urb)) 2606 return PTR_ERR(urb); 2607 2608 hdev->stat.sco_tx++; 2609 return submit_tx_urb(hdev, urb); 2610 2611 case HCI_ISODATA_PKT: 2612 urb = alloc_bulk_urb(hdev, skb); 2613 if (IS_ERR(urb)) 2614 return PTR_ERR(urb); 2615 2616 return submit_or_queue_tx_urb(hdev, urb); 2617 } 2618 2619 return -EILSEQ; 2620 } 2621 2622 static int btusb_setup_realtek(struct hci_dev *hdev) 2623 { 2624 struct btusb_data *data = hci_get_drvdata(hdev); 2625 int ret; 2626 2627 ret = btrtl_setup_realtek(hdev); 2628 2629 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2630 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2631 2632 return ret; 2633 } 2634 2635 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2636 { 2637 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2638 struct rtk_dev_coredump_hdr hdr = { 2639 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2640 }; 2641 2642 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2643 skb->len); 2644 2645 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2646 kfree_skb(skb); 2647 2648 return 0; 2649 } 2650 2651 return hci_recv_frame(hdev, skb); 2652 } 2653 2654 /* UHW CR mapping */ 2655 #define MTK_BT_MISC 0x70002510 2656 #define MTK_BT_SUBSYS_RST 0x70002610 2657 #define MTK_UDMA_INT_STA_BT 0x74000024 2658 #define MTK_UDMA_INT_STA_BT1 0x74000308 2659 #define MTK_BT_WDT_STATUS 0x740003A0 2660 #define MTK_EP_RST_OPT 0x74011890 2661 #define MTK_EP_RST_IN_OUT_OPT 0x00010001 2662 #define MTK_BT_RST_DONE 0x00000100 2663 #define MTK_BT_RESET_REG_CONNV3 0x70028610 2664 #define MTK_BT_READ_DEV_ID 0x70010200 2665 2666 2667 static void btusb_mtk_wmt_recv(struct urb *urb) 2668 { 2669 struct hci_dev *hdev = urb->context; 2670 struct btusb_data *data = hci_get_drvdata(hdev); 2671 struct sk_buff *skb; 2672 int err; 2673 2674 if (urb->status == 0 && urb->actual_length > 0) { 2675 hdev->stat.byte_rx += urb->actual_length; 2676 2677 /* WMT event shouldn't be fragmented and the size should be 2678 * less than HCI_WMT_MAX_EVENT_SIZE. 2679 */ 2680 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC); 2681 if (!skb) { 2682 hdev->stat.err_rx++; 2683 kfree(urb->setup_packet); 2684 return; 2685 } 2686 2687 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2688 skb_put_data(skb, urb->transfer_buffer, urb->actual_length); 2689 2690 /* When someone waits for the WMT event, the skb is being cloned 2691 * and being processed the events from there then. 2692 */ 2693 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) { 2694 data->evt_skb = skb_clone(skb, GFP_ATOMIC); 2695 if (!data->evt_skb) { 2696 kfree_skb(skb); 2697 kfree(urb->setup_packet); 2698 return; 2699 } 2700 } 2701 2702 err = hci_recv_frame(hdev, skb); 2703 if (err < 0) { 2704 kfree_skb(data->evt_skb); 2705 data->evt_skb = NULL; 2706 kfree(urb->setup_packet); 2707 return; 2708 } 2709 2710 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT, 2711 &data->flags)) { 2712 /* Barrier to sync with other CPUs */ 2713 smp_mb__after_atomic(); 2714 wake_up_bit(&data->flags, 2715 BTUSB_TX_WAIT_VND_EVT); 2716 } 2717 kfree(urb->setup_packet); 2718 return; 2719 } else if (urb->status == -ENOENT) { 2720 /* Avoid suspend failed when usb_kill_urb */ 2721 return; 2722 } 2723 2724 usb_mark_last_busy(data->udev); 2725 2726 /* The URB complete handler is still called with urb->actual_length = 0 2727 * when the event is not available, so we should keep re-submitting 2728 * URB until WMT event returns, Also, It's necessary to wait some time 2729 * between the two consecutive control URBs to relax the target device 2730 * to generate the event. Otherwise, the WMT event cannot return from 2731 * the device successfully. 2732 */ 2733 udelay(500); 2734 2735 usb_anchor_urb(urb, &data->ctrl_anchor); 2736 err = usb_submit_urb(urb, GFP_ATOMIC); 2737 if (err < 0) { 2738 kfree(urb->setup_packet); 2739 /* -EPERM: urb is being killed; 2740 * -ENODEV: device got disconnected 2741 */ 2742 if (err != -EPERM && err != -ENODEV) 2743 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2744 urb, -err); 2745 usb_unanchor_urb(urb); 2746 } 2747 } 2748 2749 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev) 2750 { 2751 struct btusb_data *data = hci_get_drvdata(hdev); 2752 struct usb_ctrlrequest *dr; 2753 unsigned char *buf; 2754 int err, size = 64; 2755 unsigned int pipe; 2756 struct urb *urb; 2757 2758 urb = usb_alloc_urb(0, GFP_KERNEL); 2759 if (!urb) 2760 return -ENOMEM; 2761 2762 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2763 if (!dr) { 2764 usb_free_urb(urb); 2765 return -ENOMEM; 2766 } 2767 2768 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN; 2769 dr->bRequest = 1; 2770 dr->wIndex = cpu_to_le16(0); 2771 dr->wValue = cpu_to_le16(48); 2772 dr->wLength = cpu_to_le16(size); 2773 2774 buf = kmalloc(size, GFP_KERNEL); 2775 if (!buf) { 2776 kfree(dr); 2777 usb_free_urb(urb); 2778 return -ENOMEM; 2779 } 2780 2781 pipe = usb_rcvctrlpipe(data->udev, 0); 2782 2783 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2784 buf, size, btusb_mtk_wmt_recv, hdev); 2785 2786 urb->transfer_flags |= URB_FREE_BUFFER; 2787 2788 usb_anchor_urb(urb, &data->ctrl_anchor); 2789 err = usb_submit_urb(urb, GFP_KERNEL); 2790 if (err < 0) { 2791 if (err != -EPERM && err != -ENODEV) 2792 bt_dev_err(hdev, "urb %p submission failed (%d)", 2793 urb, -err); 2794 usb_unanchor_urb(urb); 2795 } 2796 2797 usb_free_urb(urb); 2798 2799 return err; 2800 } 2801 2802 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev, 2803 struct btmtk_hci_wmt_params *wmt_params) 2804 { 2805 struct btusb_data *data = hci_get_drvdata(hdev); 2806 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc; 2807 u32 hlen, status = BTMTK_WMT_INVALID; 2808 struct btmtk_hci_wmt_evt *wmt_evt; 2809 struct btmtk_hci_wmt_cmd *wc; 2810 struct btmtk_wmt_hdr *hdr; 2811 int err; 2812 2813 /* Send the WMT command and wait until the WMT event returns */ 2814 hlen = sizeof(*hdr) + wmt_params->dlen; 2815 if (hlen > 255) 2816 return -EINVAL; 2817 2818 wc = kzalloc(hlen, GFP_KERNEL); 2819 if (!wc) 2820 return -ENOMEM; 2821 2822 hdr = &wc->hdr; 2823 hdr->dir = 1; 2824 hdr->op = wmt_params->op; 2825 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1); 2826 hdr->flag = wmt_params->flag; 2827 memcpy(wc->data, wmt_params->data, wmt_params->dlen); 2828 2829 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2830 2831 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling, 2832 * it needs constantly polling control pipe until the host received the 2833 * WMT event, thus, we should require to specifically acquire PM counter 2834 * on the USB to prevent the interface from entering auto suspended 2835 * while WMT cmd/event in progress. 2836 */ 2837 err = usb_autopm_get_interface(data->intf); 2838 if (err < 0) 2839 goto err_free_wc; 2840 2841 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc); 2842 2843 if (err < 0) { 2844 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2845 usb_autopm_put_interface(data->intf); 2846 goto err_free_wc; 2847 } 2848 2849 /* Submit control IN URB on demand to process the WMT event */ 2850 err = btusb_mtk_submit_wmt_recv_urb(hdev); 2851 2852 usb_autopm_put_interface(data->intf); 2853 2854 if (err < 0) 2855 goto err_free_wc; 2856 2857 /* The vendor specific WMT commands are all answered by a vendor 2858 * specific event and will have the Command Status or Command 2859 * Complete as with usual HCI command flow control. 2860 * 2861 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT 2862 * state to be cleared. The driver specific event receive routine 2863 * will clear that state and with that indicate completion of the 2864 * WMT command. 2865 */ 2866 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT, 2867 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT); 2868 if (err == -EINTR) { 2869 bt_dev_err(hdev, "Execution of wmt command interrupted"); 2870 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2871 goto err_free_wc; 2872 } 2873 2874 if (err) { 2875 bt_dev_err(hdev, "Execution of wmt command timed out"); 2876 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2877 err = -ETIMEDOUT; 2878 goto err_free_wc; 2879 } 2880 2881 if (data->evt_skb == NULL) 2882 goto err_free_wc; 2883 2884 /* Parse and handle the return WMT event */ 2885 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; 2886 if (wmt_evt->whdr.op != hdr->op) { 2887 bt_dev_err(hdev, "Wrong op received %d expected %d", 2888 wmt_evt->whdr.op, hdr->op); 2889 err = -EIO; 2890 goto err_free_skb; 2891 } 2892 2893 switch (wmt_evt->whdr.op) { 2894 case BTMTK_WMT_SEMAPHORE: 2895 if (wmt_evt->whdr.flag == 2) 2896 status = BTMTK_WMT_PATCH_UNDONE; 2897 else 2898 status = BTMTK_WMT_PATCH_DONE; 2899 break; 2900 case BTMTK_WMT_FUNC_CTRL: 2901 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; 2902 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) 2903 status = BTMTK_WMT_ON_DONE; 2904 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) 2905 status = BTMTK_WMT_ON_PROGRESS; 2906 else 2907 status = BTMTK_WMT_ON_UNDONE; 2908 break; 2909 case BTMTK_WMT_PATCH_DWNLD: 2910 if (wmt_evt->whdr.flag == 2) 2911 status = BTMTK_WMT_PATCH_DONE; 2912 else if (wmt_evt->whdr.flag == 1) 2913 status = BTMTK_WMT_PATCH_PROGRESS; 2914 else 2915 status = BTMTK_WMT_PATCH_UNDONE; 2916 break; 2917 } 2918 2919 if (wmt_params->status) 2920 *wmt_params->status = status; 2921 2922 err_free_skb: 2923 kfree_skb(data->evt_skb); 2924 data->evt_skb = NULL; 2925 err_free_wc: 2926 kfree(wc); 2927 return err; 2928 } 2929 2930 static int btusb_mtk_func_query(struct hci_dev *hdev) 2931 { 2932 struct btmtk_hci_wmt_params wmt_params; 2933 int status, err; 2934 u8 param = 0; 2935 2936 /* Query whether the function is enabled */ 2937 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2938 wmt_params.flag = 4; 2939 wmt_params.dlen = sizeof(param); 2940 wmt_params.data = ¶m; 2941 wmt_params.status = &status; 2942 2943 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2944 if (err < 0) { 2945 bt_dev_err(hdev, "Failed to query function status (%d)", err); 2946 return err; 2947 } 2948 2949 return status; 2950 } 2951 2952 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) 2953 { 2954 struct hci_dev *hdev = data->hdev; 2955 int pipe, err; 2956 void *buf; 2957 2958 buf = kzalloc(4, GFP_KERNEL); 2959 if (!buf) 2960 return -ENOMEM; 2961 2962 put_unaligned_le32(val, buf); 2963 2964 pipe = usb_sndctrlpipe(data->udev, 0); 2965 err = usb_control_msg(data->udev, pipe, 0x02, 2966 0x5E, 2967 reg >> 16, reg & 0xffff, 2968 buf, 4, USB_CTRL_SET_TIMEOUT); 2969 if (err < 0) { 2970 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); 2971 goto err_free_buf; 2972 } 2973 2974 err_free_buf: 2975 kfree(buf); 2976 2977 return err; 2978 } 2979 2980 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2981 { 2982 struct hci_dev *hdev = data->hdev; 2983 int pipe, err; 2984 void *buf; 2985 2986 buf = kzalloc(4, GFP_KERNEL); 2987 if (!buf) 2988 return -ENOMEM; 2989 2990 pipe = usb_rcvctrlpipe(data->udev, 0); 2991 err = usb_control_msg(data->udev, pipe, 0x01, 2992 0xDE, 2993 reg >> 16, reg & 0xffff, 2994 buf, 4, USB_CTRL_SET_TIMEOUT); 2995 if (err < 0) { 2996 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); 2997 goto err_free_buf; 2998 } 2999 3000 *val = get_unaligned_le32(buf); 3001 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); 3002 3003 err_free_buf: 3004 kfree(buf); 3005 3006 return err; 3007 } 3008 3009 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) 3010 { 3011 int pipe, err, size = sizeof(u32); 3012 void *buf; 3013 3014 buf = kzalloc(size, GFP_KERNEL); 3015 if (!buf) 3016 return -ENOMEM; 3017 3018 pipe = usb_rcvctrlpipe(data->udev, 0); 3019 err = usb_control_msg(data->udev, pipe, 0x63, 3020 USB_TYPE_VENDOR | USB_DIR_IN, 3021 reg >> 16, reg & 0xffff, 3022 buf, size, USB_CTRL_SET_TIMEOUT); 3023 if (err < 0) 3024 goto err_free_buf; 3025 3026 *val = get_unaligned_le32(buf); 3027 3028 err_free_buf: 3029 kfree(buf); 3030 3031 return err; 3032 } 3033 3034 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) 3035 { 3036 return btusb_mtk_reg_read(data, reg, id); 3037 } 3038 3039 static u32 btusb_mtk_reset_done(struct hci_dev *hdev) 3040 { 3041 struct btusb_data *data = hci_get_drvdata(hdev); 3042 u32 val = 0; 3043 3044 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); 3045 3046 return val & MTK_BT_RST_DONE; 3047 } 3048 3049 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 3050 { 3051 struct btusb_data *data = hci_get_drvdata(hdev); 3052 struct btmediatek_data *mediatek; 3053 u32 val; 3054 int err; 3055 3056 /* It's MediaTek specific bluetooth reset mechanism via USB */ 3057 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 3058 bt_dev_err(hdev, "last reset failed? Not resetting again"); 3059 return -EBUSY; 3060 } 3061 3062 err = usb_autopm_get_interface(data->intf); 3063 if (err < 0) 3064 return err; 3065 3066 btusb_stop_traffic(data); 3067 usb_kill_anchored_urbs(&data->tx_anchor); 3068 mediatek = hci_get_priv(hdev); 3069 3070 if (mediatek->dev_id == 0x7925) { 3071 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3072 val |= (1 << 5); 3073 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3074 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3075 val &= 0xFFFF00FF; 3076 val |= (1 << 13); 3077 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3078 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); 3079 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3080 val |= (1 << 0); 3081 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3082 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3083 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3084 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3085 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3086 msleep(100); 3087 } else { 3088 /* It's Device EndPoint Reset Option Register */ 3089 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); 3090 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3091 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); 3092 3093 /* Reset the bluetooth chip via USB interface. */ 3094 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); 3095 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3096 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3097 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3098 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3099 /* MT7921 need to delay 20ms between toggle reset bit */ 3100 msleep(20); 3101 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); 3102 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); 3103 } 3104 3105 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val, 3106 val & MTK_BT_RST_DONE, 20000, 1000000); 3107 if (err < 0) 3108 bt_dev_err(hdev, "Reset timeout"); 3109 3110 btusb_mtk_id_get(data, 0x70010200, &val); 3111 if (!val) 3112 bt_dev_err(hdev, "Can't get device id, subsys reset fail."); 3113 3114 usb_queue_reset_device(data->intf); 3115 3116 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); 3117 3118 return err; 3119 } 3120 3121 static int btusb_mtk_setup(struct hci_dev *hdev) 3122 { 3123 struct btusb_data *data = hci_get_drvdata(hdev); 3124 struct btmtk_hci_wmt_params wmt_params; 3125 ktime_t calltime, delta, rettime; 3126 struct btmtk_tci_sleep tci_sleep; 3127 unsigned long long duration; 3128 struct sk_buff *skb; 3129 const char *fwname; 3130 int err, status; 3131 u32 dev_id = 0; 3132 char fw_bin_name[64]; 3133 u32 fw_version = 0; 3134 u8 param; 3135 struct btmediatek_data *mediatek; 3136 3137 calltime = ktime_get(); 3138 3139 err = btusb_mtk_id_get(data, 0x80000008, &dev_id); 3140 if (err < 0) { 3141 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3142 return err; 3143 } 3144 3145 if (!dev_id || dev_id != 0x7663) { 3146 err = btusb_mtk_id_get(data, 0x70010200, &dev_id); 3147 if (err < 0) { 3148 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3149 return err; 3150 } 3151 err = btusb_mtk_id_get(data, 0x80021004, &fw_version); 3152 if (err < 0) { 3153 bt_dev_err(hdev, "Failed to get fw version (%d)", err); 3154 return err; 3155 } 3156 } 3157 3158 mediatek = hci_get_priv(hdev); 3159 mediatek->dev_id = dev_id; 3160 mediatek->reset_sync = btusb_mtk_reset; 3161 3162 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version); 3163 if (err < 0) 3164 bt_dev_err(hdev, "Failed to register coredump (%d)", err); 3165 3166 switch (dev_id) { 3167 case 0x7663: 3168 fwname = FIRMWARE_MT7663; 3169 break; 3170 case 0x7668: 3171 fwname = FIRMWARE_MT7668; 3172 break; 3173 case 0x7922: 3174 case 0x7961: 3175 case 0x7925: 3176 if (dev_id == 0x7925) 3177 snprintf(fw_bin_name, sizeof(fw_bin_name), 3178 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3179 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1); 3180 else 3181 snprintf(fw_bin_name, sizeof(fw_bin_name), 3182 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3183 dev_id & 0xffff, (fw_version & 0xff) + 1); 3184 3185 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name, 3186 btusb_mtk_hci_wmt_sync); 3187 if (err < 0) { 3188 bt_dev_err(hdev, "Failed to set up firmware (%d)", err); 3189 return err; 3190 } 3191 3192 /* It's Device EndPoint Reset Option Register */ 3193 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3194 3195 /* Enable Bluetooth protocol */ 3196 param = 1; 3197 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3198 wmt_params.flag = 0; 3199 wmt_params.dlen = sizeof(param); 3200 wmt_params.data = ¶m; 3201 wmt_params.status = NULL; 3202 3203 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3204 if (err < 0) { 3205 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3206 return err; 3207 } 3208 3209 hci_set_msft_opcode(hdev, 0xFD30); 3210 hci_set_aosp_capable(hdev); 3211 goto done; 3212 default: 3213 bt_dev_err(hdev, "Unsupported hardware variant (%08x)", 3214 dev_id); 3215 return -ENODEV; 3216 } 3217 3218 /* Query whether the firmware is already download */ 3219 wmt_params.op = BTMTK_WMT_SEMAPHORE; 3220 wmt_params.flag = 1; 3221 wmt_params.dlen = 0; 3222 wmt_params.data = NULL; 3223 wmt_params.status = &status; 3224 3225 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3226 if (err < 0) { 3227 bt_dev_err(hdev, "Failed to query firmware status (%d)", err); 3228 return err; 3229 } 3230 3231 if (status == BTMTK_WMT_PATCH_DONE) { 3232 bt_dev_info(hdev, "firmware already downloaded"); 3233 goto ignore_setup_fw; 3234 } 3235 3236 /* Setup a firmware which the device definitely requires */ 3237 err = btmtk_setup_firmware(hdev, fwname, 3238 btusb_mtk_hci_wmt_sync); 3239 if (err < 0) 3240 return err; 3241 3242 ignore_setup_fw: 3243 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, 3244 status < 0 || status != BTMTK_WMT_ON_PROGRESS, 3245 2000, 5000000); 3246 /* -ETIMEDOUT happens */ 3247 if (err < 0) 3248 return err; 3249 3250 /* The other errors happen in btusb_mtk_func_query */ 3251 if (status < 0) 3252 return status; 3253 3254 if (status == BTMTK_WMT_ON_DONE) { 3255 bt_dev_info(hdev, "function already on"); 3256 goto ignore_func_on; 3257 } 3258 3259 /* Enable Bluetooth protocol */ 3260 param = 1; 3261 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3262 wmt_params.flag = 0; 3263 wmt_params.dlen = sizeof(param); 3264 wmt_params.data = ¶m; 3265 wmt_params.status = NULL; 3266 3267 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3268 if (err < 0) { 3269 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3270 return err; 3271 } 3272 3273 ignore_func_on: 3274 /* Apply the low power environment setup */ 3275 tci_sleep.mode = 0x5; 3276 tci_sleep.duration = cpu_to_le16(0x640); 3277 tci_sleep.host_duration = cpu_to_le16(0x640); 3278 tci_sleep.host_wakeup_pin = 0; 3279 tci_sleep.time_compensation = 0; 3280 3281 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, 3282 HCI_INIT_TIMEOUT); 3283 if (IS_ERR(skb)) { 3284 err = PTR_ERR(skb); 3285 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); 3286 return err; 3287 } 3288 kfree_skb(skb); 3289 3290 done: 3291 rettime = ktime_get(); 3292 delta = ktime_sub(rettime, calltime); 3293 duration = (unsigned long long)ktime_to_ns(delta) >> 10; 3294 3295 bt_dev_info(hdev, "Device setup in %llu usecs", duration); 3296 3297 return 0; 3298 } 3299 3300 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3301 { 3302 struct btmtk_hci_wmt_params wmt_params; 3303 u8 param = 0; 3304 int err; 3305 3306 /* Disable the device */ 3307 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3308 wmt_params.flag = 0; 3309 wmt_params.dlen = sizeof(param); 3310 wmt_params.data = ¶m; 3311 wmt_params.status = NULL; 3312 3313 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3314 if (err < 0) { 3315 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3316 return err; 3317 } 3318 3319 return 0; 3320 } 3321 3322 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3323 { 3324 struct btusb_data *data = hci_get_drvdata(hdev); 3325 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); 3326 3327 switch (handle) { 3328 case 0xfc6f: /* Firmware dump from device */ 3329 /* When the firmware hangs, the device can no longer 3330 * suspend and thus disable auto-suspend. 3331 */ 3332 usb_disable_autosuspend(data->udev); 3333 3334 /* We need to forward the diagnostic packet to userspace daemon 3335 * for backward compatibility, so we have to clone the packet 3336 * extraly for the in-kernel coredump support. 3337 */ 3338 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) { 3339 struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC); 3340 3341 if (skb_cd) 3342 btmtk_process_coredump(hdev, skb_cd); 3343 } 3344 3345 fallthrough; 3346 case 0x05ff: /* Firmware debug logging 1 */ 3347 case 0x05fe: /* Firmware debug logging 2 */ 3348 return hci_recv_diag(hdev, skb); 3349 } 3350 3351 return hci_recv_frame(hdev, skb); 3352 } 3353 3354 #ifdef CONFIG_PM 3355 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3356 static int marvell_config_oob_wake(struct hci_dev *hdev) 3357 { 3358 struct sk_buff *skb; 3359 struct btusb_data *data = hci_get_drvdata(hdev); 3360 struct device *dev = &data->udev->dev; 3361 u16 pin, gap, opcode; 3362 int ret; 3363 u8 cmd[5]; 3364 3365 /* Move on if no wakeup pin specified */ 3366 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3367 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3368 return 0; 3369 3370 /* Vendor specific command to configure a GPIO as wake-up pin */ 3371 opcode = hci_opcode_pack(0x3F, 0x59); 3372 cmd[0] = opcode & 0xFF; 3373 cmd[1] = opcode >> 8; 3374 cmd[2] = 2; /* length of parameters that follow */ 3375 cmd[3] = pin; 3376 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3377 3378 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3379 if (!skb) { 3380 bt_dev_err(hdev, "%s: No memory", __func__); 3381 return -ENOMEM; 3382 } 3383 3384 skb_put_data(skb, cmd, sizeof(cmd)); 3385 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3386 3387 ret = btusb_send_frame(hdev, skb); 3388 if (ret) { 3389 bt_dev_err(hdev, "%s: configuration failed", __func__); 3390 kfree_skb(skb); 3391 return ret; 3392 } 3393 3394 return 0; 3395 } 3396 #endif 3397 3398 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3399 const bdaddr_t *bdaddr) 3400 { 3401 struct sk_buff *skb; 3402 u8 buf[8]; 3403 long ret; 3404 3405 buf[0] = 0xfe; 3406 buf[1] = sizeof(bdaddr_t); 3407 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3408 3409 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3410 if (IS_ERR(skb)) { 3411 ret = PTR_ERR(skb); 3412 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3413 ret); 3414 return ret; 3415 } 3416 kfree_skb(skb); 3417 3418 return 0; 3419 } 3420 3421 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3422 const bdaddr_t *bdaddr) 3423 { 3424 struct sk_buff *skb; 3425 u8 buf[10]; 3426 long ret; 3427 3428 buf[0] = 0x01; 3429 buf[1] = 0x01; 3430 buf[2] = 0x00; 3431 buf[3] = sizeof(bdaddr_t); 3432 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3433 3434 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3435 if (IS_ERR(skb)) { 3436 ret = PTR_ERR(skb); 3437 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3438 return ret; 3439 } 3440 kfree_skb(skb); 3441 3442 return 0; 3443 } 3444 3445 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3446 const bdaddr_t *bdaddr) 3447 { 3448 struct sk_buff *skb; 3449 u8 buf[6]; 3450 long ret; 3451 3452 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3453 3454 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3455 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3456 if (IS_ERR(skb)) { 3457 ret = PTR_ERR(skb); 3458 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3459 return ret; 3460 } 3461 kfree_skb(skb); 3462 3463 return 0; 3464 } 3465 3466 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3467 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3468 #define QCA_MEMDUMP_VSE_CLASS 0x01 3469 #define QCA_MEMDUMP_MSG_TYPE 0x08 3470 #define QCA_MEMDUMP_PKT_SIZE 248 3471 #define QCA_LAST_SEQUENCE_NUM 0xffff 3472 3473 struct qca_dump_hdr { 3474 u8 vse_class; 3475 u8 msg_type; 3476 __le16 seqno; 3477 u8 reserved; 3478 union { 3479 u8 data[0]; 3480 struct { 3481 __le32 ram_dump_size; 3482 u8 data0[0]; 3483 } __packed; 3484 }; 3485 } __packed; 3486 3487 3488 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3489 { 3490 char buf[128]; 3491 struct btusb_data *btdata = hci_get_drvdata(hdev); 3492 3493 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3494 btdata->qca_dump.controller_id); 3495 skb_put_data(skb, buf, strlen(buf)); 3496 3497 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3498 btdata->qca_dump.fw_version); 3499 skb_put_data(skb, buf, strlen(buf)); 3500 3501 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3502 btusb_driver.name); 3503 skb_put_data(skb, buf, strlen(buf)); 3504 3505 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3506 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3507 skb_put_data(skb, buf, strlen(buf)); 3508 3509 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3510 hdev->lmp_subver); 3511 skb_put_data(skb, buf, strlen(buf)); 3512 } 3513 3514 static void btusb_coredump_qca(struct hci_dev *hdev) 3515 { 3516 int err; 3517 static const u8 param[] = { 0x26 }; 3518 3519 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3520 if (err < 0) 3521 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3522 } 3523 3524 /* 3525 * ==0: not a dump pkt. 3526 * < 0: fails to handle a dump pkt 3527 * > 0: otherwise. 3528 */ 3529 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3530 { 3531 int ret = 1; 3532 u8 pkt_type; 3533 u8 *sk_ptr; 3534 unsigned int sk_len; 3535 u16 seqno; 3536 u32 dump_size; 3537 3538 struct hci_event_hdr *event_hdr; 3539 struct hci_acl_hdr *acl_hdr; 3540 struct qca_dump_hdr *dump_hdr; 3541 struct btusb_data *btdata = hci_get_drvdata(hdev); 3542 struct usb_device *udev = btdata->udev; 3543 3544 pkt_type = hci_skb_pkt_type(skb); 3545 sk_ptr = skb->data; 3546 sk_len = skb->len; 3547 3548 if (pkt_type == HCI_ACLDATA_PKT) { 3549 acl_hdr = hci_acl_hdr(skb); 3550 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3551 return 0; 3552 sk_ptr += HCI_ACL_HDR_SIZE; 3553 sk_len -= HCI_ACL_HDR_SIZE; 3554 event_hdr = (struct hci_event_hdr *)sk_ptr; 3555 } else { 3556 event_hdr = hci_event_hdr(skb); 3557 } 3558 3559 if ((event_hdr->evt != HCI_VENDOR_PKT) 3560 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3561 return 0; 3562 3563 sk_ptr += HCI_EVENT_HDR_SIZE; 3564 sk_len -= HCI_EVENT_HDR_SIZE; 3565 3566 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3567 if ((sk_len < offsetof(struct qca_dump_hdr, data)) 3568 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) 3569 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3570 return 0; 3571 3572 /*it is dump pkt now*/ 3573 seqno = le16_to_cpu(dump_hdr->seqno); 3574 if (seqno == 0) { 3575 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3576 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3577 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3578 ret = -EILSEQ; 3579 bt_dev_err(hdev, "Invalid memdump size(%u)", 3580 dump_size); 3581 goto out; 3582 } 3583 3584 ret = hci_devcd_init(hdev, dump_size); 3585 if (ret < 0) { 3586 bt_dev_err(hdev, "memdump init error(%d)", ret); 3587 goto out; 3588 } 3589 3590 btdata->qca_dump.ram_dump_size = dump_size; 3591 btdata->qca_dump.ram_dump_seqno = 0; 3592 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3593 sk_len -= offsetof(struct qca_dump_hdr, data0); 3594 3595 usb_disable_autosuspend(udev); 3596 bt_dev_info(hdev, "%s memdump size(%u)\n", 3597 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3598 dump_size); 3599 } else { 3600 sk_ptr += offsetof(struct qca_dump_hdr, data); 3601 sk_len -= offsetof(struct qca_dump_hdr, data); 3602 } 3603 3604 if (!btdata->qca_dump.ram_dump_size) { 3605 ret = -EINVAL; 3606 bt_dev_err(hdev, "memdump is not active"); 3607 goto out; 3608 } 3609 3610 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3611 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3612 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3613 bt_dev_err(hdev, 3614 "expected memdump seqno(%u) is not received(%u)\n", 3615 btdata->qca_dump.ram_dump_seqno, seqno); 3616 btdata->qca_dump.ram_dump_seqno = seqno; 3617 kfree_skb(skb); 3618 return ret; 3619 } 3620 3621 skb_pull(skb, skb->len - sk_len); 3622 hci_devcd_append(hdev, skb); 3623 btdata->qca_dump.ram_dump_seqno++; 3624 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3625 bt_dev_info(hdev, 3626 "memdump done: pkts(%u), total(%u)\n", 3627 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3628 3629 hci_devcd_complete(hdev); 3630 goto out; 3631 } 3632 return ret; 3633 3634 out: 3635 if (btdata->qca_dump.ram_dump_size) 3636 usb_enable_autosuspend(udev); 3637 btdata->qca_dump.ram_dump_size = 0; 3638 btdata->qca_dump.ram_dump_seqno = 0; 3639 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3640 3641 if (ret < 0) 3642 kfree_skb(skb); 3643 return ret; 3644 } 3645 3646 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3647 { 3648 if (handle_dump_pkt_qca(hdev, skb)) 3649 return 0; 3650 return hci_recv_frame(hdev, skb); 3651 } 3652 3653 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3654 { 3655 if (handle_dump_pkt_qca(hdev, skb)) 3656 return 0; 3657 return hci_recv_frame(hdev, skb); 3658 } 3659 3660 3661 #define QCA_DFU_PACKET_LEN 4096 3662 3663 #define QCA_GET_TARGET_VERSION 0x09 3664 #define QCA_CHECK_STATUS 0x05 3665 #define QCA_DFU_DOWNLOAD 0x01 3666 3667 #define QCA_SYSCFG_UPDATED 0x40 3668 #define QCA_PATCH_UPDATED 0x80 3669 #define QCA_DFU_TIMEOUT 3000 3670 #define QCA_FLAG_MULTI_NVM 0x80 3671 #define QCA_BT_RESET_WAIT_MS 100 3672 3673 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3674 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3675 3676 struct qca_version { 3677 __le32 rom_version; 3678 __le32 patch_version; 3679 __le32 ram_version; 3680 __u8 chip_id; 3681 __u8 platform_id; 3682 __le16 flag; 3683 __u8 reserved[4]; 3684 } __packed; 3685 3686 struct qca_rampatch_version { 3687 __le16 rom_version_high; 3688 __le16 rom_version_low; 3689 __le16 patch_version; 3690 } __packed; 3691 3692 struct qca_device_info { 3693 u32 rom_version; 3694 u8 rampatch_hdr; /* length of header in rampatch */ 3695 u8 nvm_hdr; /* length of header in NVM */ 3696 u8 ver_offset; /* offset of version structure in rampatch */ 3697 }; 3698 3699 static const struct qca_device_info qca_devices_table[] = { 3700 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3701 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3702 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3703 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3704 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3705 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3706 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3707 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3708 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3709 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3710 }; 3711 3712 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3713 void *data, u16 size) 3714 { 3715 int pipe, err; 3716 u8 *buf; 3717 3718 buf = kmalloc(size, GFP_KERNEL); 3719 if (!buf) 3720 return -ENOMEM; 3721 3722 /* Found some of USB hosts have IOT issues with ours so that we should 3723 * not wait until HCI layer is ready. 3724 */ 3725 pipe = usb_rcvctrlpipe(udev, 0); 3726 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3727 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3728 if (err < 0) { 3729 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3730 goto done; 3731 } 3732 3733 memcpy(data, buf, size); 3734 3735 done: 3736 kfree(buf); 3737 3738 return err; 3739 } 3740 3741 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3742 const struct firmware *firmware, 3743 size_t hdr_size) 3744 { 3745 struct btusb_data *btdata = hci_get_drvdata(hdev); 3746 struct usb_device *udev = btdata->udev; 3747 size_t count, size, sent = 0; 3748 int pipe, len, err; 3749 u8 *buf; 3750 3751 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3752 if (!buf) 3753 return -ENOMEM; 3754 3755 count = firmware->size; 3756 3757 size = min_t(size_t, count, hdr_size); 3758 memcpy(buf, firmware->data, size); 3759 3760 /* USB patches should go down to controller through USB path 3761 * because binary format fits to go down through USB channel. 3762 * USB control path is for patching headers and USB bulk is for 3763 * patch body. 3764 */ 3765 pipe = usb_sndctrlpipe(udev, 0); 3766 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3767 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3768 if (err < 0) { 3769 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3770 goto done; 3771 } 3772 3773 sent += size; 3774 count -= size; 3775 3776 /* ep2 need time to switch from function acl to function dfu, 3777 * so we add 20ms delay here. 3778 */ 3779 msleep(20); 3780 3781 while (count) { 3782 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3783 3784 memcpy(buf, firmware->data + sent, size); 3785 3786 pipe = usb_sndbulkpipe(udev, 0x02); 3787 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3788 QCA_DFU_TIMEOUT); 3789 if (err < 0) { 3790 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3791 sent, firmware->size, err); 3792 break; 3793 } 3794 3795 if (size != len) { 3796 bt_dev_err(hdev, "Failed to get bulk buffer"); 3797 err = -EILSEQ; 3798 break; 3799 } 3800 3801 sent += size; 3802 count -= size; 3803 } 3804 3805 done: 3806 kfree(buf); 3807 return err; 3808 } 3809 3810 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3811 struct qca_version *ver, 3812 const struct qca_device_info *info) 3813 { 3814 struct qca_rampatch_version *rver; 3815 const struct firmware *fw; 3816 u32 ver_rom, ver_patch, rver_rom; 3817 u16 rver_rom_low, rver_rom_high, rver_patch; 3818 char fwname[64]; 3819 int err; 3820 3821 ver_rom = le32_to_cpu(ver->rom_version); 3822 ver_patch = le32_to_cpu(ver->patch_version); 3823 3824 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3825 3826 err = request_firmware(&fw, fwname, &hdev->dev); 3827 if (err) { 3828 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3829 fwname, err); 3830 return err; 3831 } 3832 3833 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3834 3835 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3836 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3837 rver_patch = le16_to_cpu(rver->patch_version); 3838 3839 if (ver_rom & ~0xffffU) { 3840 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3841 rver_rom = rver_rom_high << 16 | rver_rom_low; 3842 } else { 3843 rver_rom = rver_rom_low; 3844 } 3845 3846 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3847 "firmware rome 0x%x build 0x%x", 3848 rver_rom, rver_patch, ver_rom, ver_patch); 3849 3850 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3851 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3852 err = -EINVAL; 3853 goto done; 3854 } 3855 3856 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3857 3858 done: 3859 release_firmware(fw); 3860 3861 return err; 3862 } 3863 3864 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3865 const struct qca_version *ver) 3866 { 3867 u32 rom_version = le32_to_cpu(ver->rom_version); 3868 u16 flag = le16_to_cpu(ver->flag); 3869 3870 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3871 /* The board_id should be split into two bytes 3872 * The 1st byte is chip ID, and the 2nd byte is platform ID 3873 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3874 * we have several platforms, and platform IDs are continuously added 3875 * Platform ID: 3876 * 0x00 is for Mobile 3877 * 0x01 is for X86 3878 * 0x02 is for Automotive 3879 * 0x03 is for Consumer electronic 3880 */ 3881 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3882 const char *variant; 3883 3884 switch (le32_to_cpu(ver->ram_version)) { 3885 case WCN6855_2_0_RAM_VERSION_GF: 3886 case WCN6855_2_1_RAM_VERSION_GF: 3887 variant = "_gf"; 3888 break; 3889 default: 3890 variant = ""; 3891 break; 3892 } 3893 3894 if (board_id == 0) { 3895 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3896 rom_version, variant); 3897 } else { 3898 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3899 rom_version, variant, board_id); 3900 } 3901 } else { 3902 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3903 rom_version); 3904 } 3905 3906 } 3907 3908 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3909 struct qca_version *ver, 3910 const struct qca_device_info *info) 3911 { 3912 const struct firmware *fw; 3913 char fwname[64]; 3914 int err; 3915 3916 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3917 3918 err = request_firmware(&fw, fwname, &hdev->dev); 3919 if (err) { 3920 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3921 fwname, err); 3922 return err; 3923 } 3924 3925 bt_dev_info(hdev, "using NVM file: %s", fwname); 3926 3927 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3928 3929 release_firmware(fw); 3930 3931 return err; 3932 } 3933 3934 /* identify the ROM version and check whether patches are needed */ 3935 static bool btusb_qca_need_patch(struct usb_device *udev) 3936 { 3937 struct qca_version ver; 3938 3939 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3940 sizeof(ver)) < 0) 3941 return false; 3942 /* only low ROM versions need patches */ 3943 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3944 } 3945 3946 static int btusb_setup_qca(struct hci_dev *hdev) 3947 { 3948 struct btusb_data *btdata = hci_get_drvdata(hdev); 3949 struct usb_device *udev = btdata->udev; 3950 const struct qca_device_info *info = NULL; 3951 struct qca_version ver; 3952 u32 ver_rom; 3953 u8 status; 3954 int i, err; 3955 3956 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3957 sizeof(ver)); 3958 if (err < 0) 3959 return err; 3960 3961 ver_rom = le32_to_cpu(ver.rom_version); 3962 3963 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3964 if (ver_rom == qca_devices_table[i].rom_version) 3965 info = &qca_devices_table[i]; 3966 } 3967 if (!info) { 3968 /* If the rom_version is not matched in the qca_devices_table 3969 * and the high ROM version is not zero, we assume this chip no 3970 * need to load the rampatch and nvm. 3971 */ 3972 if (ver_rom & ~0xffffU) 3973 return 0; 3974 3975 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3976 return -ENODEV; 3977 } 3978 3979 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3980 sizeof(status)); 3981 if (err < 0) 3982 return err; 3983 3984 if (!(status & QCA_PATCH_UPDATED)) { 3985 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3986 if (err < 0) 3987 return err; 3988 } 3989 3990 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3991 sizeof(ver)); 3992 if (err < 0) 3993 return err; 3994 3995 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3996 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3997 3998 if (!(status & QCA_SYSCFG_UPDATED)) { 3999 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 4000 if (err < 0) 4001 return err; 4002 4003 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 4004 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 4005 * cause potential enable failure. 4006 */ 4007 if (info->rom_version >= 0x00130201) 4008 msleep(QCA_BT_RESET_WAIT_MS); 4009 } 4010 4011 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 4012 * work with the likes of HSP/HFP mSBC. 4013 */ 4014 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4015 4016 return 0; 4017 } 4018 4019 static inline int __set_diag_interface(struct hci_dev *hdev) 4020 { 4021 struct btusb_data *data = hci_get_drvdata(hdev); 4022 struct usb_interface *intf = data->diag; 4023 int i; 4024 4025 if (!data->diag) 4026 return -ENODEV; 4027 4028 data->diag_tx_ep = NULL; 4029 data->diag_rx_ep = NULL; 4030 4031 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4032 struct usb_endpoint_descriptor *ep_desc; 4033 4034 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4035 4036 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4037 data->diag_tx_ep = ep_desc; 4038 continue; 4039 } 4040 4041 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4042 data->diag_rx_ep = ep_desc; 4043 continue; 4044 } 4045 } 4046 4047 if (!data->diag_tx_ep || !data->diag_rx_ep) { 4048 bt_dev_err(hdev, "invalid diagnostic descriptors"); 4049 return -ENODEV; 4050 } 4051 4052 return 0; 4053 } 4054 4055 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 4056 { 4057 struct btusb_data *data = hci_get_drvdata(hdev); 4058 struct sk_buff *skb; 4059 struct urb *urb; 4060 unsigned int pipe; 4061 4062 if (!data->diag_tx_ep) 4063 return ERR_PTR(-ENODEV); 4064 4065 urb = usb_alloc_urb(0, GFP_KERNEL); 4066 if (!urb) 4067 return ERR_PTR(-ENOMEM); 4068 4069 skb = bt_skb_alloc(2, GFP_KERNEL); 4070 if (!skb) { 4071 usb_free_urb(urb); 4072 return ERR_PTR(-ENOMEM); 4073 } 4074 4075 skb_put_u8(skb, 0xf0); 4076 skb_put_u8(skb, enable); 4077 4078 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 4079 4080 usb_fill_bulk_urb(urb, data->udev, pipe, 4081 skb->data, skb->len, btusb_tx_complete, skb); 4082 4083 skb->dev = (void *)hdev; 4084 4085 return urb; 4086 } 4087 4088 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 4089 { 4090 struct btusb_data *data = hci_get_drvdata(hdev); 4091 struct urb *urb; 4092 4093 if (!data->diag) 4094 return -ENODEV; 4095 4096 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4097 return -ENETDOWN; 4098 4099 urb = alloc_diag_urb(hdev, enable); 4100 if (IS_ERR(urb)) 4101 return PTR_ERR(urb); 4102 4103 return submit_or_queue_tx_urb(hdev, urb); 4104 } 4105 4106 #ifdef CONFIG_PM 4107 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 4108 { 4109 struct btusb_data *data = priv; 4110 4111 pm_wakeup_event(&data->udev->dev, 0); 4112 pm_system_wakeup(); 4113 4114 /* Disable only if not already disabled (keep it balanced) */ 4115 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4116 disable_irq_nosync(irq); 4117 disable_irq_wake(irq); 4118 } 4119 return IRQ_HANDLED; 4120 } 4121 4122 static const struct of_device_id btusb_match_table[] = { 4123 { .compatible = "usb1286,204e" }, 4124 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 4125 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 4126 { } 4127 }; 4128 MODULE_DEVICE_TABLE(of, btusb_match_table); 4129 4130 /* Use an oob wakeup pin? */ 4131 static int btusb_config_oob_wake(struct hci_dev *hdev) 4132 { 4133 struct btusb_data *data = hci_get_drvdata(hdev); 4134 struct device *dev = &data->udev->dev; 4135 int irq, ret; 4136 4137 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4138 4139 if (!of_match_device(btusb_match_table, dev)) 4140 return 0; 4141 4142 /* Move on if no IRQ specified */ 4143 irq = of_irq_get_byname(dev->of_node, "wakeup"); 4144 if (irq <= 0) { 4145 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 4146 return 0; 4147 } 4148 4149 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4150 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 4151 0, "OOB Wake-on-BT", data); 4152 if (ret) { 4153 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4154 return ret; 4155 } 4156 4157 ret = device_init_wakeup(dev, true); 4158 if (ret) { 4159 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4160 return ret; 4161 } 4162 4163 data->oob_wake_irq = irq; 4164 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4165 return 0; 4166 } 4167 #endif 4168 4169 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4170 { 4171 if (dmi_check_system(btusb_needs_reset_resume_table)) 4172 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4173 } 4174 4175 static bool btusb_wakeup(struct hci_dev *hdev) 4176 { 4177 struct btusb_data *data = hci_get_drvdata(hdev); 4178 4179 return device_may_wakeup(&data->udev->dev); 4180 } 4181 4182 static int btusb_shutdown_qca(struct hci_dev *hdev) 4183 { 4184 struct sk_buff *skb; 4185 4186 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 4187 if (IS_ERR(skb)) { 4188 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4189 return PTR_ERR(skb); 4190 } 4191 kfree_skb(skb); 4192 4193 return 0; 4194 } 4195 4196 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4197 size_t count, loff_t *ppos) 4198 { 4199 struct btusb_data *data = file->private_data; 4200 char buf[3]; 4201 4202 buf[0] = data->poll_sync ? 'Y' : 'N'; 4203 buf[1] = '\n'; 4204 buf[2] = '\0'; 4205 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4206 } 4207 4208 static ssize_t force_poll_sync_write(struct file *file, 4209 const char __user *user_buf, 4210 size_t count, loff_t *ppos) 4211 { 4212 struct btusb_data *data = file->private_data; 4213 bool enable; 4214 int err; 4215 4216 err = kstrtobool_from_user(user_buf, count, &enable); 4217 if (err) 4218 return err; 4219 4220 /* Only allow changes while the adapter is down */ 4221 if (test_bit(HCI_UP, &data->hdev->flags)) 4222 return -EPERM; 4223 4224 if (data->poll_sync == enable) 4225 return -EALREADY; 4226 4227 data->poll_sync = enable; 4228 4229 return count; 4230 } 4231 4232 static const struct file_operations force_poll_sync_fops = { 4233 .open = simple_open, 4234 .read = force_poll_sync_read, 4235 .write = force_poll_sync_write, 4236 .llseek = default_llseek, 4237 }; 4238 4239 static int btusb_probe(struct usb_interface *intf, 4240 const struct usb_device_id *id) 4241 { 4242 struct usb_endpoint_descriptor *ep_desc; 4243 struct gpio_desc *reset_gpio; 4244 struct btusb_data *data; 4245 struct hci_dev *hdev; 4246 unsigned ifnum_base; 4247 int i, err, priv_size; 4248 4249 BT_DBG("intf %p id %p", intf, id); 4250 4251 if ((id->driver_info & BTUSB_IFNUM_2) && 4252 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4253 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4254 return -ENODEV; 4255 4256 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4257 4258 if (!id->driver_info) { 4259 const struct usb_device_id *match; 4260 4261 match = usb_match_id(intf, quirks_table); 4262 if (match) 4263 id = match; 4264 } 4265 4266 if (id->driver_info == BTUSB_IGNORE) 4267 return -ENODEV; 4268 4269 if (id->driver_info & BTUSB_ATH3012) { 4270 struct usb_device *udev = interface_to_usbdev(intf); 4271 4272 /* Old firmware would otherwise let ath3k driver load 4273 * patch and sysconfig files 4274 */ 4275 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4276 !btusb_qca_need_patch(udev)) 4277 return -ENODEV; 4278 } 4279 4280 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 4281 if (!data) 4282 return -ENOMEM; 4283 4284 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4285 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4286 4287 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 4288 data->intr_ep = ep_desc; 4289 continue; 4290 } 4291 4292 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4293 data->bulk_tx_ep = ep_desc; 4294 continue; 4295 } 4296 4297 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4298 data->bulk_rx_ep = ep_desc; 4299 continue; 4300 } 4301 } 4302 4303 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 4304 return -ENODEV; 4305 4306 if (id->driver_info & BTUSB_AMP) { 4307 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4308 data->cmdreq = 0x2b; 4309 } else { 4310 data->cmdreq_type = USB_TYPE_CLASS; 4311 data->cmdreq = 0x00; 4312 } 4313 4314 data->udev = interface_to_usbdev(intf); 4315 data->intf = intf; 4316 4317 INIT_WORK(&data->work, btusb_work); 4318 INIT_WORK(&data->waker, btusb_waker); 4319 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4320 4321 skb_queue_head_init(&data->acl_q); 4322 4323 init_usb_anchor(&data->deferred); 4324 init_usb_anchor(&data->tx_anchor); 4325 spin_lock_init(&data->txlock); 4326 4327 init_usb_anchor(&data->intr_anchor); 4328 init_usb_anchor(&data->bulk_anchor); 4329 init_usb_anchor(&data->isoc_anchor); 4330 init_usb_anchor(&data->diag_anchor); 4331 init_usb_anchor(&data->ctrl_anchor); 4332 spin_lock_init(&data->rxlock); 4333 4334 priv_size = 0; 4335 4336 data->recv_event = hci_recv_frame; 4337 data->recv_bulk = btusb_recv_bulk; 4338 4339 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4340 /* Allocate extra space for Intel device */ 4341 priv_size += sizeof(struct btintel_data); 4342 4343 /* Override the rx handlers */ 4344 data->recv_event = btintel_recv_event; 4345 data->recv_bulk = btusb_recv_bulk_intel; 4346 } else if (id->driver_info & BTUSB_REALTEK) { 4347 /* Allocate extra space for Realtek device */ 4348 priv_size += sizeof(struct btrealtek_data); 4349 4350 data->recv_event = btusb_recv_event_realtek; 4351 } else if (id->driver_info & BTUSB_MEDIATEK) { 4352 /* Allocate extra space for Mediatek device */ 4353 priv_size += sizeof(struct btmediatek_data); 4354 } 4355 4356 data->recv_acl = hci_recv_frame; 4357 4358 hdev = hci_alloc_dev_priv(priv_size); 4359 if (!hdev) 4360 return -ENOMEM; 4361 4362 hdev->bus = HCI_USB; 4363 hci_set_drvdata(hdev, data); 4364 4365 data->hdev = hdev; 4366 4367 SET_HCIDEV_DEV(hdev, &intf->dev); 4368 4369 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4370 GPIOD_OUT_LOW); 4371 if (IS_ERR(reset_gpio)) { 4372 err = PTR_ERR(reset_gpio); 4373 goto out_free_dev; 4374 } else if (reset_gpio) { 4375 data->reset_gpio = reset_gpio; 4376 } 4377 4378 hdev->open = btusb_open; 4379 hdev->close = btusb_close; 4380 hdev->flush = btusb_flush; 4381 hdev->send = btusb_send_frame; 4382 hdev->notify = btusb_notify; 4383 hdev->wakeup = btusb_wakeup; 4384 4385 #ifdef CONFIG_PM 4386 err = btusb_config_oob_wake(hdev); 4387 if (err) 4388 goto out_free_dev; 4389 4390 /* Marvell devices may need a specific chip configuration */ 4391 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4392 err = marvell_config_oob_wake(hdev); 4393 if (err) 4394 goto out_free_dev; 4395 } 4396 #endif 4397 if (id->driver_info & BTUSB_CW6622) 4398 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4399 4400 if (id->driver_info & BTUSB_BCM2045) 4401 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4402 4403 if (id->driver_info & BTUSB_BCM92035) 4404 hdev->setup = btusb_setup_bcm92035; 4405 4406 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4407 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4408 hdev->manufacturer = 15; 4409 hdev->setup = btbcm_setup_patchram; 4410 hdev->set_diag = btusb_bcm_set_diag; 4411 hdev->set_bdaddr = btbcm_set_bdaddr; 4412 4413 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4414 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4415 } 4416 4417 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4418 (id->driver_info & BTUSB_BCM_APPLE)) { 4419 hdev->manufacturer = 15; 4420 hdev->setup = btbcm_setup_apple; 4421 hdev->set_diag = btusb_bcm_set_diag; 4422 4423 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4424 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4425 } 4426 4427 /* Combined Intel Device setup to support multiple setup routine */ 4428 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4429 err = btintel_configure_setup(hdev, btusb_driver.name); 4430 if (err) 4431 goto out_free_dev; 4432 4433 /* Transport specific configuration */ 4434 hdev->send = btusb_send_frame_intel; 4435 hdev->cmd_timeout = btusb_intel_cmd_timeout; 4436 4437 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4438 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4439 4440 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4441 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4442 4443 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4444 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4445 } 4446 4447 if (id->driver_info & BTUSB_MARVELL) 4448 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4449 4450 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4451 (id->driver_info & BTUSB_MEDIATEK)) { 4452 hdev->setup = btusb_mtk_setup; 4453 hdev->shutdown = btusb_mtk_shutdown; 4454 hdev->manufacturer = 70; 4455 hdev->cmd_timeout = btmtk_reset_sync; 4456 hdev->set_bdaddr = btmtk_set_bdaddr; 4457 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4458 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4459 data->recv_acl = btusb_recv_acl_mtk; 4460 } 4461 4462 if (id->driver_info & BTUSB_SWAVE) { 4463 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4464 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4465 } 4466 4467 if (id->driver_info & BTUSB_INTEL_BOOT) { 4468 hdev->manufacturer = 2; 4469 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4470 } 4471 4472 if (id->driver_info & BTUSB_ATH3012) { 4473 data->setup_on_usb = btusb_setup_qca; 4474 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4475 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4476 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4477 } 4478 4479 if (id->driver_info & BTUSB_QCA_ROME) { 4480 data->setup_on_usb = btusb_setup_qca; 4481 hdev->shutdown = btusb_shutdown_qca; 4482 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4483 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4484 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4485 btusb_check_needs_reset_resume(intf); 4486 } 4487 4488 if (id->driver_info & BTUSB_QCA_WCN6855) { 4489 data->qca_dump.id_vendor = id->idVendor; 4490 data->qca_dump.id_product = id->idProduct; 4491 data->recv_event = btusb_recv_evt_qca; 4492 data->recv_acl = btusb_recv_acl_qca; 4493 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4494 data->setup_on_usb = btusb_setup_qca; 4495 hdev->shutdown = btusb_shutdown_qca; 4496 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4497 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4498 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4499 hci_set_msft_opcode(hdev, 0xFD70); 4500 } 4501 4502 if (id->driver_info & BTUSB_AMP) { 4503 /* AMP controllers do not support SCO packets */ 4504 data->isoc = NULL; 4505 } else { 4506 /* Interface orders are hardcoded in the specification */ 4507 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4508 data->isoc_ifnum = ifnum_base + 1; 4509 } 4510 4511 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4512 (id->driver_info & BTUSB_REALTEK)) { 4513 btrtl_set_driver_name(hdev, btusb_driver.name); 4514 hdev->setup = btusb_setup_realtek; 4515 hdev->shutdown = btrtl_shutdown_realtek; 4516 hdev->cmd_timeout = btusb_rtl_cmd_timeout; 4517 hdev->hw_error = btusb_rtl_hw_error; 4518 4519 /* Realtek devices need to set remote wakeup on auto-suspend */ 4520 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4521 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4522 } 4523 4524 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4525 /* Support is advertised, but not implemented */ 4526 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4527 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4528 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4529 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4530 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks); 4531 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks); 4532 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks); 4533 } 4534 4535 if (!reset) 4536 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4537 4538 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4539 if (!disable_scofix) 4540 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4541 } 4542 4543 if (id->driver_info & BTUSB_BROKEN_ISOC) 4544 data->isoc = NULL; 4545 4546 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4547 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4548 4549 if (id->driver_info & BTUSB_VALID_LE_STATES) 4550 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); 4551 4552 if (id->driver_info & BTUSB_DIGIANSWER) { 4553 data->cmdreq_type = USB_TYPE_VENDOR; 4554 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4555 } 4556 4557 if (id->driver_info & BTUSB_CSR) { 4558 struct usb_device *udev = data->udev; 4559 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4560 4561 /* Old firmware would otherwise execute USB reset */ 4562 if (bcdDevice < 0x117) 4563 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4564 4565 /* This must be set first in case we disable it for fakes */ 4566 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4567 4568 /* Fake CSR devices with broken commands */ 4569 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4570 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4571 hdev->setup = btusb_setup_csr; 4572 } 4573 4574 if (id->driver_info & BTUSB_SNIFFER) { 4575 struct usb_device *udev = data->udev; 4576 4577 /* New sniffer firmware has crippled HCI interface */ 4578 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4579 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4580 } 4581 4582 if (id->driver_info & BTUSB_INTEL_BOOT) { 4583 /* A bug in the bootloader causes that interrupt interface is 4584 * only enabled after receiving SetInterface(0, AltSetting=0). 4585 */ 4586 err = usb_set_interface(data->udev, 0, 0); 4587 if (err < 0) { 4588 BT_ERR("failed to set interface 0, alt 0 %d", err); 4589 goto out_free_dev; 4590 } 4591 } 4592 4593 if (data->isoc) { 4594 err = usb_driver_claim_interface(&btusb_driver, 4595 data->isoc, data); 4596 if (err < 0) 4597 goto out_free_dev; 4598 } 4599 4600 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4601 if (!usb_driver_claim_interface(&btusb_driver, 4602 data->diag, data)) 4603 __set_diag_interface(hdev); 4604 else 4605 data->diag = NULL; 4606 } 4607 4608 if (enable_autosuspend) 4609 usb_enable_autosuspend(data->udev); 4610 4611 data->poll_sync = enable_poll_sync; 4612 4613 err = hci_register_dev(hdev); 4614 if (err < 0) 4615 goto out_free_dev; 4616 4617 usb_set_intfdata(intf, data); 4618 4619 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4620 &force_poll_sync_fops); 4621 4622 return 0; 4623 4624 out_free_dev: 4625 if (data->reset_gpio) 4626 gpiod_put(data->reset_gpio); 4627 hci_free_dev(hdev); 4628 return err; 4629 } 4630 4631 static void btusb_disconnect(struct usb_interface *intf) 4632 { 4633 struct btusb_data *data = usb_get_intfdata(intf); 4634 struct hci_dev *hdev; 4635 4636 BT_DBG("intf %p", intf); 4637 4638 if (!data) 4639 return; 4640 4641 hdev = data->hdev; 4642 usb_set_intfdata(data->intf, NULL); 4643 4644 if (data->isoc) 4645 usb_set_intfdata(data->isoc, NULL); 4646 4647 if (data->diag) 4648 usb_set_intfdata(data->diag, NULL); 4649 4650 if (data->disconnect) 4651 data->disconnect(hdev); 4652 4653 hci_unregister_dev(hdev); 4654 4655 if (intf == data->intf) { 4656 if (data->isoc) 4657 usb_driver_release_interface(&btusb_driver, data->isoc); 4658 if (data->diag) 4659 usb_driver_release_interface(&btusb_driver, data->diag); 4660 } else if (intf == data->isoc) { 4661 if (data->diag) 4662 usb_driver_release_interface(&btusb_driver, data->diag); 4663 usb_driver_release_interface(&btusb_driver, data->intf); 4664 } else if (intf == data->diag) { 4665 usb_driver_release_interface(&btusb_driver, data->intf); 4666 if (data->isoc) 4667 usb_driver_release_interface(&btusb_driver, data->isoc); 4668 } 4669 4670 if (data->oob_wake_irq) 4671 device_init_wakeup(&data->udev->dev, false); 4672 4673 if (data->reset_gpio) 4674 gpiod_put(data->reset_gpio); 4675 4676 hci_free_dev(hdev); 4677 } 4678 4679 #ifdef CONFIG_PM 4680 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4681 { 4682 struct btusb_data *data = usb_get_intfdata(intf); 4683 4684 BT_DBG("intf %p", intf); 4685 4686 if (data->suspend_count++) 4687 return 0; 4688 4689 spin_lock_irq(&data->txlock); 4690 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4691 set_bit(BTUSB_SUSPENDING, &data->flags); 4692 spin_unlock_irq(&data->txlock); 4693 } else { 4694 spin_unlock_irq(&data->txlock); 4695 data->suspend_count--; 4696 return -EBUSY; 4697 } 4698 4699 cancel_work_sync(&data->work); 4700 4701 if (data->suspend) 4702 data->suspend(data->hdev); 4703 4704 btusb_stop_traffic(data); 4705 usb_kill_anchored_urbs(&data->tx_anchor); 4706 4707 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4708 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4709 enable_irq_wake(data->oob_wake_irq); 4710 enable_irq(data->oob_wake_irq); 4711 } 4712 4713 /* For global suspend, Realtek devices lose the loaded fw 4714 * in them. But for autosuspend, firmware should remain. 4715 * Actually, it depends on whether the usb host sends 4716 * set feature (enable wakeup) or not. 4717 */ 4718 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4719 if (PMSG_IS_AUTO(message) && 4720 device_can_wakeup(&data->udev->dev)) 4721 data->udev->do_remote_wakeup = 1; 4722 else if (!PMSG_IS_AUTO(message) && 4723 !device_may_wakeup(&data->udev->dev)) { 4724 data->udev->do_remote_wakeup = 0; 4725 data->udev->reset_resume = 1; 4726 } 4727 } 4728 4729 return 0; 4730 } 4731 4732 static void play_deferred(struct btusb_data *data) 4733 { 4734 struct urb *urb; 4735 int err; 4736 4737 while ((urb = usb_get_from_anchor(&data->deferred))) { 4738 usb_anchor_urb(urb, &data->tx_anchor); 4739 4740 err = usb_submit_urb(urb, GFP_ATOMIC); 4741 if (err < 0) { 4742 if (err != -EPERM && err != -ENODEV) 4743 BT_ERR("%s urb %p submission failed (%d)", 4744 data->hdev->name, urb, -err); 4745 kfree(urb->setup_packet); 4746 usb_unanchor_urb(urb); 4747 usb_free_urb(urb); 4748 break; 4749 } 4750 4751 data->tx_in_flight++; 4752 usb_free_urb(urb); 4753 } 4754 4755 /* Cleanup the rest deferred urbs. */ 4756 while ((urb = usb_get_from_anchor(&data->deferred))) { 4757 kfree(urb->setup_packet); 4758 usb_free_urb(urb); 4759 } 4760 } 4761 4762 static int btusb_resume(struct usb_interface *intf) 4763 { 4764 struct btusb_data *data = usb_get_intfdata(intf); 4765 struct hci_dev *hdev = data->hdev; 4766 int err = 0; 4767 4768 BT_DBG("intf %p", intf); 4769 4770 if (--data->suspend_count) 4771 return 0; 4772 4773 /* Disable only if not already disabled (keep it balanced) */ 4774 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4775 disable_irq(data->oob_wake_irq); 4776 disable_irq_wake(data->oob_wake_irq); 4777 } 4778 4779 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4780 goto done; 4781 4782 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4783 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4784 if (err < 0) { 4785 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4786 goto failed; 4787 } 4788 } 4789 4790 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4791 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4792 if (err < 0) { 4793 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4794 goto failed; 4795 } 4796 4797 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4798 } 4799 4800 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4801 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4802 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4803 else 4804 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4805 } 4806 4807 if (data->resume) 4808 data->resume(hdev); 4809 4810 spin_lock_irq(&data->txlock); 4811 play_deferred(data); 4812 clear_bit(BTUSB_SUSPENDING, &data->flags); 4813 spin_unlock_irq(&data->txlock); 4814 schedule_work(&data->work); 4815 4816 return 0; 4817 4818 failed: 4819 usb_scuttle_anchored_urbs(&data->deferred); 4820 done: 4821 spin_lock_irq(&data->txlock); 4822 clear_bit(BTUSB_SUSPENDING, &data->flags); 4823 spin_unlock_irq(&data->txlock); 4824 4825 return err; 4826 } 4827 #endif 4828 4829 #ifdef CONFIG_DEV_COREDUMP 4830 static void btusb_coredump(struct device *dev) 4831 { 4832 struct btusb_data *data = dev_get_drvdata(dev); 4833 struct hci_dev *hdev = data->hdev; 4834 4835 if (hdev->dump.coredump) 4836 hdev->dump.coredump(hdev); 4837 } 4838 #endif 4839 4840 static struct usb_driver btusb_driver = { 4841 .name = "btusb", 4842 .probe = btusb_probe, 4843 .disconnect = btusb_disconnect, 4844 #ifdef CONFIG_PM 4845 .suspend = btusb_suspend, 4846 .resume = btusb_resume, 4847 #endif 4848 .id_table = btusb_table, 4849 .supports_autosuspend = 1, 4850 .disable_hub_initiated_lpm = 1, 4851 4852 #ifdef CONFIG_DEV_COREDUMP 4853 .drvwrap = { 4854 .driver = { 4855 .coredump = btusb_coredump, 4856 }, 4857 }, 4858 #endif 4859 }; 4860 4861 module_usb_driver(btusb_driver); 4862 4863 module_param(disable_scofix, bool, 0644); 4864 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4865 4866 module_param(force_scofix, bool, 0644); 4867 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4868 4869 module_param(enable_autosuspend, bool, 0644); 4870 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4871 4872 module_param(reset, bool, 0644); 4873 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4874 4875 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4876 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4877 MODULE_VERSION(VERSION); 4878 MODULE_LICENSE("GPL"); 4879