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