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