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, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 481 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 482 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 483 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 484 BTUSB_INTEL_NO_WBS_SUPPORT | 485 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 486 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 487 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 488 BTUSB_INTEL_NO_WBS_SUPPORT | 489 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 490 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 491 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 492 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 493 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 494 495 /* Other Intel Bluetooth devices */ 496 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 497 .driver_info = BTUSB_IGNORE }, 498 499 /* Realtek 8821CE Bluetooth devices */ 500 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 501 BTUSB_WIDEBAND_SPEECH }, 502 503 /* Realtek 8822CE Bluetooth devices */ 504 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 505 BTUSB_WIDEBAND_SPEECH }, 506 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 507 BTUSB_WIDEBAND_SPEECH }, 508 509 /* Realtek 8822CU Bluetooth devices */ 510 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 511 BTUSB_WIDEBAND_SPEECH }, 512 513 /* Realtek 8852AE Bluetooth devices */ 514 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 515 BTUSB_WIDEBAND_SPEECH }, 516 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 517 BTUSB_WIDEBAND_SPEECH }, 518 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 519 BTUSB_WIDEBAND_SPEECH }, 520 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 521 BTUSB_WIDEBAND_SPEECH }, 522 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 523 BTUSB_WIDEBAND_SPEECH }, 524 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 525 BTUSB_WIDEBAND_SPEECH }, 526 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 527 BTUSB_WIDEBAND_SPEECH }, 528 529 /* Realtek 8852CE Bluetooth devices */ 530 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 531 BTUSB_WIDEBAND_SPEECH }, 532 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 533 BTUSB_WIDEBAND_SPEECH }, 534 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 535 BTUSB_WIDEBAND_SPEECH }, 536 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 537 BTUSB_WIDEBAND_SPEECH }, 538 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 539 BTUSB_WIDEBAND_SPEECH }, 540 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 541 BTUSB_WIDEBAND_SPEECH }, 542 543 /* Realtek 8852BE Bluetooth devices */ 544 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 545 BTUSB_WIDEBAND_SPEECH }, 546 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 547 BTUSB_WIDEBAND_SPEECH }, 548 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 549 BTUSB_WIDEBAND_SPEECH }, 550 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 551 BTUSB_WIDEBAND_SPEECH }, 552 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 553 BTUSB_WIDEBAND_SPEECH }, 554 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 555 BTUSB_WIDEBAND_SPEECH }, 556 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 557 BTUSB_WIDEBAND_SPEECH }, 558 559 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 560 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 561 BTUSB_WIDEBAND_SPEECH }, 562 /* Realtek Bluetooth devices */ 563 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 564 .driver_info = BTUSB_REALTEK }, 565 566 /* MediaTek Bluetooth devices */ 567 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 568 .driver_info = BTUSB_MEDIATEK | 569 BTUSB_WIDEBAND_SPEECH | 570 BTUSB_VALID_LE_STATES }, 571 572 /* Additional MediaTek MT7615E Bluetooth devices */ 573 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 574 575 /* Additional MediaTek MT7663 Bluetooth devices */ 576 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 577 BTUSB_WIDEBAND_SPEECH | 578 BTUSB_VALID_LE_STATES }, 579 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 580 BTUSB_WIDEBAND_SPEECH | 581 BTUSB_VALID_LE_STATES }, 582 583 /* Additional MediaTek MT7668 Bluetooth devices */ 584 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 585 BTUSB_WIDEBAND_SPEECH | 586 BTUSB_VALID_LE_STATES }, 587 588 /* Additional MediaTek MT7921 Bluetooth devices */ 589 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 590 BTUSB_WIDEBAND_SPEECH | 591 BTUSB_VALID_LE_STATES }, 592 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 593 BTUSB_WIDEBAND_SPEECH | 594 BTUSB_VALID_LE_STATES }, 595 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 596 BTUSB_WIDEBAND_SPEECH | 597 BTUSB_VALID_LE_STATES }, 598 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 599 BTUSB_WIDEBAND_SPEECH | 600 BTUSB_VALID_LE_STATES }, 601 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 602 BTUSB_WIDEBAND_SPEECH | 603 BTUSB_VALID_LE_STATES }, 604 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 605 BTUSB_WIDEBAND_SPEECH | 606 BTUSB_VALID_LE_STATES }, 607 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 608 BTUSB_WIDEBAND_SPEECH | 609 BTUSB_VALID_LE_STATES }, 610 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 611 BTUSB_WIDEBAND_SPEECH | 612 BTUSB_VALID_LE_STATES }, 613 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 614 BTUSB_WIDEBAND_SPEECH | 615 BTUSB_VALID_LE_STATES }, 616 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 617 BTUSB_WIDEBAND_SPEECH | 618 BTUSB_VALID_LE_STATES }, 619 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 620 BTUSB_WIDEBAND_SPEECH | 621 BTUSB_VALID_LE_STATES }, 622 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 623 BTUSB_WIDEBAND_SPEECH | 624 BTUSB_VALID_LE_STATES }, 625 626 /* MediaTek MT7922 Bluetooth devices */ 627 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 628 BTUSB_WIDEBAND_SPEECH | 629 BTUSB_VALID_LE_STATES }, 630 631 /* MediaTek MT7922A Bluetooth devices */ 632 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 633 BTUSB_WIDEBAND_SPEECH | 634 BTUSB_VALID_LE_STATES }, 635 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 636 BTUSB_WIDEBAND_SPEECH | 637 BTUSB_VALID_LE_STATES }, 638 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 639 BTUSB_WIDEBAND_SPEECH | 640 BTUSB_VALID_LE_STATES }, 641 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 642 BTUSB_WIDEBAND_SPEECH | 643 BTUSB_VALID_LE_STATES }, 644 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 645 BTUSB_WIDEBAND_SPEECH | 646 BTUSB_VALID_LE_STATES }, 647 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 648 BTUSB_WIDEBAND_SPEECH | 649 BTUSB_VALID_LE_STATES }, 650 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 651 BTUSB_WIDEBAND_SPEECH | 652 BTUSB_VALID_LE_STATES }, 653 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 654 BTUSB_WIDEBAND_SPEECH | 655 BTUSB_VALID_LE_STATES }, 656 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 657 BTUSB_WIDEBAND_SPEECH | 658 BTUSB_VALID_LE_STATES }, 659 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 660 BTUSB_WIDEBAND_SPEECH | 661 BTUSB_VALID_LE_STATES }, 662 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 663 BTUSB_WIDEBAND_SPEECH | 664 BTUSB_VALID_LE_STATES }, 665 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 666 BTUSB_WIDEBAND_SPEECH | 667 BTUSB_VALID_LE_STATES }, 668 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 669 BTUSB_WIDEBAND_SPEECH | 670 BTUSB_VALID_LE_STATES }, 671 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 672 BTUSB_WIDEBAND_SPEECH | 673 BTUSB_VALID_LE_STATES }, 674 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 675 BTUSB_WIDEBAND_SPEECH | 676 BTUSB_VALID_LE_STATES }, 677 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 678 BTUSB_WIDEBAND_SPEECH | 679 BTUSB_VALID_LE_STATES }, 680 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 681 BTUSB_WIDEBAND_SPEECH | 682 BTUSB_VALID_LE_STATES }, 683 684 /* Additional MediaTek MT7925 Bluetooth devices */ 685 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 686 BTUSB_WIDEBAND_SPEECH | 687 BTUSB_VALID_LE_STATES }, 688 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 689 BTUSB_WIDEBAND_SPEECH | 690 BTUSB_VALID_LE_STATES }, 691 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 692 BTUSB_WIDEBAND_SPEECH | 693 BTUSB_VALID_LE_STATES }, 694 695 /* Additional Realtek 8723AE Bluetooth devices */ 696 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 697 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 698 699 /* Additional Realtek 8723BE Bluetooth devices */ 700 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 701 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 702 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 703 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 704 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 705 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 706 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 707 708 /* Additional Realtek 8723BU Bluetooth devices */ 709 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 710 711 /* Additional Realtek 8723DE Bluetooth devices */ 712 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 713 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 714 715 /* Additional Realtek 8761BUV Bluetooth devices */ 716 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 717 BTUSB_WIDEBAND_SPEECH }, 718 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 719 BTUSB_WIDEBAND_SPEECH }, 720 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 721 BTUSB_WIDEBAND_SPEECH }, 722 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 723 BTUSB_WIDEBAND_SPEECH }, 724 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 725 BTUSB_WIDEBAND_SPEECH }, 726 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 727 BTUSB_WIDEBAND_SPEECH }, 728 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 729 BTUSB_WIDEBAND_SPEECH }, 730 731 /* Additional Realtek 8821AE Bluetooth devices */ 732 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 733 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 734 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 735 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 736 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 737 738 /* Additional Realtek 8822BE Bluetooth devices */ 739 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 740 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 741 742 /* Additional Realtek 8822CE Bluetooth devices */ 743 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 744 BTUSB_WIDEBAND_SPEECH }, 745 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 746 BTUSB_WIDEBAND_SPEECH }, 747 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 748 BTUSB_WIDEBAND_SPEECH }, 749 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 750 BTUSB_WIDEBAND_SPEECH }, 751 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 752 BTUSB_WIDEBAND_SPEECH }, 753 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 754 BTUSB_WIDEBAND_SPEECH }, 755 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 756 BTUSB_WIDEBAND_SPEECH }, 757 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 758 BTUSB_WIDEBAND_SPEECH }, 759 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 760 BTUSB_WIDEBAND_SPEECH }, 761 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 762 BTUSB_WIDEBAND_SPEECH }, 763 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 764 BTUSB_WIDEBAND_SPEECH }, 765 766 /* Actions Semiconductor ATS2851 based devices */ 767 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 768 769 /* Silicon Wave based devices */ 770 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 771 772 { } /* Terminating entry */ 773 }; 774 775 /* The Bluetooth USB module build into some devices needs to be reset on resume, 776 * this is a problem with the platform (likely shutting off all power) not with 777 * the module itself. So we use a DMI list to match known broken platforms. 778 */ 779 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 780 { 781 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 782 .matches = { 783 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 784 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 785 }, 786 }, 787 { 788 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 789 .matches = { 790 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 791 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 792 }, 793 }, 794 { 795 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 796 .matches = { 797 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 798 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 799 }, 800 }, 801 {} 802 }; 803 804 struct qca_dump_info { 805 /* fields for dump collection */ 806 u16 id_vendor; 807 u16 id_product; 808 u32 fw_version; 809 u32 controller_id; 810 u32 ram_dump_size; 811 u16 ram_dump_seqno; 812 }; 813 814 #define BTUSB_MAX_ISOC_FRAMES 10 815 816 #define BTUSB_INTR_RUNNING 0 817 #define BTUSB_BULK_RUNNING 1 818 #define BTUSB_ISOC_RUNNING 2 819 #define BTUSB_SUSPENDING 3 820 #define BTUSB_DID_ISO_RESUME 4 821 #define BTUSB_BOOTLOADER 5 822 #define BTUSB_DOWNLOADING 6 823 #define BTUSB_FIRMWARE_LOADED 7 824 #define BTUSB_FIRMWARE_FAILED 8 825 #define BTUSB_BOOTING 9 826 #define BTUSB_DIAG_RUNNING 10 827 #define BTUSB_OOB_WAKE_ENABLED 11 828 #define BTUSB_HW_RESET_ACTIVE 12 829 #define BTUSB_TX_WAIT_VND_EVT 13 830 #define BTUSB_WAKEUP_AUTOSUSPEND 14 831 #define BTUSB_USE_ALT3_FOR_WBS 15 832 #define BTUSB_ALT6_CONTINUOUS_TX 16 833 #define BTUSB_HW_SSR_ACTIVE 17 834 835 struct btusb_data { 836 struct hci_dev *hdev; 837 struct usb_device *udev; 838 struct usb_interface *intf; 839 struct usb_interface *isoc; 840 struct usb_interface *diag; 841 unsigned isoc_ifnum; 842 843 unsigned long flags; 844 845 bool poll_sync; 846 int intr_interval; 847 struct work_struct work; 848 struct work_struct waker; 849 struct delayed_work rx_work; 850 851 struct sk_buff_head acl_q; 852 853 struct usb_anchor deferred; 854 struct usb_anchor tx_anchor; 855 int tx_in_flight; 856 spinlock_t txlock; 857 858 struct usb_anchor intr_anchor; 859 struct usb_anchor bulk_anchor; 860 struct usb_anchor isoc_anchor; 861 struct usb_anchor diag_anchor; 862 struct usb_anchor ctrl_anchor; 863 spinlock_t rxlock; 864 865 struct sk_buff *evt_skb; 866 struct sk_buff *acl_skb; 867 struct sk_buff *sco_skb; 868 869 struct usb_endpoint_descriptor *intr_ep; 870 struct usb_endpoint_descriptor *bulk_tx_ep; 871 struct usb_endpoint_descriptor *bulk_rx_ep; 872 struct usb_endpoint_descriptor *isoc_tx_ep; 873 struct usb_endpoint_descriptor *isoc_rx_ep; 874 struct usb_endpoint_descriptor *diag_tx_ep; 875 struct usb_endpoint_descriptor *diag_rx_ep; 876 877 struct gpio_desc *reset_gpio; 878 879 __u8 cmdreq_type; 880 __u8 cmdreq; 881 882 unsigned int sco_num; 883 unsigned int air_mode; 884 bool usb_alt6_packet_flow; 885 int isoc_altsetting; 886 int suspend_count; 887 888 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 889 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 890 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 891 892 int (*setup_on_usb)(struct hci_dev *hdev); 893 894 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 895 unsigned cmd_timeout_cnt; 896 897 struct qca_dump_info qca_dump; 898 }; 899 900 static void btusb_reset(struct hci_dev *hdev) 901 { 902 struct btusb_data *data; 903 int err; 904 905 if (hdev->reset) { 906 hdev->reset(hdev); 907 return; 908 } 909 910 data = hci_get_drvdata(hdev); 911 /* This is not an unbalanced PM reference since the device will reset */ 912 err = usb_autopm_get_interface(data->intf); 913 if (err) { 914 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 915 return; 916 } 917 918 bt_dev_err(hdev, "Resetting usb device."); 919 usb_queue_reset_device(data->intf); 920 } 921 922 static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 923 { 924 struct btusb_data *data = hci_get_drvdata(hdev); 925 struct gpio_desc *reset_gpio = data->reset_gpio; 926 struct btintel_data *intel_data = hci_get_priv(hdev); 927 928 if (++data->cmd_timeout_cnt < 5) 929 return; 930 931 if (intel_data->acpi_reset_method) { 932 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 933 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 934 return; 935 } 936 937 bt_dev_err(hdev, "Initiating acpi reset method"); 938 /* If ACPI reset method fails, lets try with legacy GPIO 939 * toggling 940 */ 941 if (!intel_data->acpi_reset_method(hdev)) { 942 return; 943 } 944 } 945 946 if (!reset_gpio) { 947 btusb_reset(hdev); 948 return; 949 } 950 951 /* 952 * Toggle the hard reset line if the platform provides one. The reset 953 * is going to yank the device off the USB and then replug. So doing 954 * once is enough. The cleanup is handled correctly on the way out 955 * (standard USB disconnect), and the new device is detected cleanly 956 * and bound to the driver again like it should be. 957 */ 958 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 959 bt_dev_err(hdev, "last reset failed? Not resetting again"); 960 return; 961 } 962 963 bt_dev_err(hdev, "Initiating HW reset via gpio"); 964 gpiod_set_value_cansleep(reset_gpio, 1); 965 msleep(100); 966 gpiod_set_value_cansleep(reset_gpio, 0); 967 } 968 969 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 970 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 971 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 972 973 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 974 975 struct rtk_dev_coredump_hdr { 976 u8 type; 977 u8 code; 978 u8 reserved[2]; 979 } __packed; 980 981 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 982 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 983 { 984 struct sk_buff *skb; 985 986 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 987 if (!skb) 988 return; 989 990 skb_put_data(skb, hdr, sizeof(*hdr)); 991 if (len) 992 skb_put_data(skb, buf, len); 993 994 if (!hci_devcd_init(hdev, skb->len)) { 995 hci_devcd_append(hdev, skb); 996 hci_devcd_complete(hdev); 997 } else { 998 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 999 kfree_skb(skb); 1000 } 1001 } 1002 1003 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) 1004 { 1005 struct btusb_data *data = hci_get_drvdata(hdev); 1006 struct gpio_desc *reset_gpio = data->reset_gpio; 1007 struct rtk_dev_coredump_hdr hdr = { 1008 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1009 }; 1010 1011 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1012 1013 if (++data->cmd_timeout_cnt < 5) 1014 return; 1015 1016 if (!reset_gpio) { 1017 btusb_reset(hdev); 1018 return; 1019 } 1020 1021 /* Toggle the hard reset line. The Realtek device is going to 1022 * yank itself off the USB and then replug. The cleanup is handled 1023 * correctly on the way out (standard USB disconnect), and the new 1024 * device is detected cleanly and bound to the driver again like 1025 * it should be. 1026 */ 1027 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1028 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1029 return; 1030 } 1031 1032 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1033 gpiod_set_value_cansleep(reset_gpio, 1); 1034 msleep(200); 1035 gpiod_set_value_cansleep(reset_gpio, 0); 1036 } 1037 1038 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1039 { 1040 struct rtk_dev_coredump_hdr hdr = { 1041 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1042 .code = code, 1043 }; 1044 1045 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1046 1047 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1048 } 1049 1050 static void btusb_qca_cmd_timeout(struct hci_dev *hdev) 1051 { 1052 struct btusb_data *data = hci_get_drvdata(hdev); 1053 struct gpio_desc *reset_gpio = data->reset_gpio; 1054 1055 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1056 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout"); 1057 return; 1058 } 1059 1060 if (++data->cmd_timeout_cnt < 5) 1061 return; 1062 1063 if (reset_gpio) { 1064 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1065 1066 /* Toggle the hard reset line. The qca bt device is going to 1067 * yank itself off the USB and then replug. The cleanup is handled 1068 * correctly on the way out (standard USB disconnect), and the new 1069 * device is detected cleanly and bound to the driver again like 1070 * it should be. 1071 */ 1072 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1073 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1074 return; 1075 } 1076 1077 gpiod_set_value_cansleep(reset_gpio, 0); 1078 msleep(200); 1079 gpiod_set_value_cansleep(reset_gpio, 1); 1080 1081 return; 1082 } 1083 1084 btusb_reset(hdev); 1085 } 1086 1087 static inline void btusb_free_frags(struct btusb_data *data) 1088 { 1089 unsigned long flags; 1090 1091 spin_lock_irqsave(&data->rxlock, flags); 1092 1093 dev_kfree_skb_irq(data->evt_skb); 1094 data->evt_skb = NULL; 1095 1096 dev_kfree_skb_irq(data->acl_skb); 1097 data->acl_skb = NULL; 1098 1099 dev_kfree_skb_irq(data->sco_skb); 1100 data->sco_skb = NULL; 1101 1102 spin_unlock_irqrestore(&data->rxlock, flags); 1103 } 1104 1105 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1106 { 1107 if (data->intr_interval) { 1108 /* Trigger dequeue immediatelly if an event is received */ 1109 schedule_delayed_work(&data->rx_work, 0); 1110 } 1111 1112 return data->recv_event(data->hdev, skb); 1113 } 1114 1115 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1116 { 1117 struct sk_buff *skb; 1118 unsigned long flags; 1119 int err = 0; 1120 1121 spin_lock_irqsave(&data->rxlock, flags); 1122 skb = data->evt_skb; 1123 1124 while (count) { 1125 int len; 1126 1127 if (!skb) { 1128 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1129 if (!skb) { 1130 err = -ENOMEM; 1131 break; 1132 } 1133 1134 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1135 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1136 } 1137 1138 len = min_t(uint, hci_skb_expect(skb), count); 1139 skb_put_data(skb, buffer, len); 1140 1141 count -= len; 1142 buffer += len; 1143 hci_skb_expect(skb) -= len; 1144 1145 if (skb->len == HCI_EVENT_HDR_SIZE) { 1146 /* Complete event header */ 1147 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1148 1149 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1150 kfree_skb(skb); 1151 skb = NULL; 1152 1153 err = -EILSEQ; 1154 break; 1155 } 1156 } 1157 1158 if (!hci_skb_expect(skb)) { 1159 /* Complete frame */ 1160 btusb_recv_event(data, skb); 1161 skb = NULL; 1162 } 1163 } 1164 1165 data->evt_skb = skb; 1166 spin_unlock_irqrestore(&data->rxlock, flags); 1167 1168 return err; 1169 } 1170 1171 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1172 { 1173 /* Only queue ACL packet if intr_interval is set as it means 1174 * force_poll_sync has been enabled. 1175 */ 1176 if (!data->intr_interval) 1177 return data->recv_acl(data->hdev, skb); 1178 1179 skb_queue_tail(&data->acl_q, skb); 1180 schedule_delayed_work(&data->rx_work, data->intr_interval); 1181 1182 return 0; 1183 } 1184 1185 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1186 { 1187 struct sk_buff *skb; 1188 unsigned long flags; 1189 int err = 0; 1190 1191 spin_lock_irqsave(&data->rxlock, flags); 1192 skb = data->acl_skb; 1193 1194 while (count) { 1195 int len; 1196 1197 if (!skb) { 1198 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1199 if (!skb) { 1200 err = -ENOMEM; 1201 break; 1202 } 1203 1204 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1205 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1206 } 1207 1208 len = min_t(uint, hci_skb_expect(skb), count); 1209 skb_put_data(skb, buffer, len); 1210 1211 count -= len; 1212 buffer += len; 1213 hci_skb_expect(skb) -= len; 1214 1215 if (skb->len == HCI_ACL_HDR_SIZE) { 1216 __le16 dlen = hci_acl_hdr(skb)->dlen; 1217 1218 /* Complete ACL header */ 1219 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1220 1221 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1222 kfree_skb(skb); 1223 skb = NULL; 1224 1225 err = -EILSEQ; 1226 break; 1227 } 1228 } 1229 1230 if (!hci_skb_expect(skb)) { 1231 /* Complete frame */ 1232 btusb_recv_acl(data, skb); 1233 skb = NULL; 1234 } 1235 } 1236 1237 data->acl_skb = skb; 1238 spin_unlock_irqrestore(&data->rxlock, flags); 1239 1240 return err; 1241 } 1242 1243 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1244 struct hci_sco_hdr *hdr) 1245 { 1246 __u16 handle; 1247 1248 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1249 // Can't validate, userspace controls everything. 1250 return true; 1251 1252 /* 1253 * USB isochronous transfers are not designed to be reliable and may 1254 * lose fragments. When this happens, the next first fragment 1255 * encountered might actually be a continuation fragment. 1256 * Validate the handle to detect it and drop it, or else the upper 1257 * layer will get garbage for a while. 1258 */ 1259 1260 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1261 1262 switch (hci_conn_lookup_type(hdev, handle)) { 1263 case SCO_LINK: 1264 case ESCO_LINK: 1265 return true; 1266 default: 1267 return false; 1268 } 1269 } 1270 1271 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1272 { 1273 struct sk_buff *skb; 1274 unsigned long flags; 1275 int err = 0; 1276 1277 spin_lock_irqsave(&data->rxlock, flags); 1278 skb = data->sco_skb; 1279 1280 while (count) { 1281 int len; 1282 1283 if (!skb) { 1284 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1285 if (!skb) { 1286 err = -ENOMEM; 1287 break; 1288 } 1289 1290 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1291 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1292 } 1293 1294 len = min_t(uint, hci_skb_expect(skb), count); 1295 skb_put_data(skb, buffer, len); 1296 1297 count -= len; 1298 buffer += len; 1299 hci_skb_expect(skb) -= len; 1300 1301 if (skb->len == HCI_SCO_HDR_SIZE) { 1302 /* Complete SCO header */ 1303 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1304 1305 hci_skb_expect(skb) = hdr->dlen; 1306 1307 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1308 !btusb_validate_sco_handle(data->hdev, hdr)) { 1309 kfree_skb(skb); 1310 skb = NULL; 1311 1312 err = -EILSEQ; 1313 break; 1314 } 1315 } 1316 1317 if (!hci_skb_expect(skb)) { 1318 /* Complete frame */ 1319 hci_recv_frame(data->hdev, skb); 1320 skb = NULL; 1321 } 1322 } 1323 1324 data->sco_skb = skb; 1325 spin_unlock_irqrestore(&data->rxlock, flags); 1326 1327 return err; 1328 } 1329 1330 static void btusb_intr_complete(struct urb *urb) 1331 { 1332 struct hci_dev *hdev = urb->context; 1333 struct btusb_data *data = hci_get_drvdata(hdev); 1334 int err; 1335 1336 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1337 urb->actual_length); 1338 1339 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1340 return; 1341 1342 if (urb->status == 0) { 1343 hdev->stat.byte_rx += urb->actual_length; 1344 1345 if (btusb_recv_intr(data, urb->transfer_buffer, 1346 urb->actual_length) < 0) { 1347 bt_dev_err(hdev, "corrupted event packet"); 1348 hdev->stat.err_rx++; 1349 } 1350 } else if (urb->status == -ENOENT) { 1351 /* Avoid suspend failed when usb_kill_urb */ 1352 return; 1353 } 1354 1355 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1356 return; 1357 1358 usb_mark_last_busy(data->udev); 1359 usb_anchor_urb(urb, &data->intr_anchor); 1360 1361 err = usb_submit_urb(urb, GFP_ATOMIC); 1362 if (err < 0) { 1363 /* -EPERM: urb is being killed; 1364 * -ENODEV: device got disconnected 1365 */ 1366 if (err != -EPERM && err != -ENODEV) 1367 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1368 urb, -err); 1369 if (err != -EPERM) 1370 hci_cmd_sync_cancel(hdev, -err); 1371 usb_unanchor_urb(urb); 1372 } 1373 } 1374 1375 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1376 { 1377 struct btusb_data *data = hci_get_drvdata(hdev); 1378 struct urb *urb; 1379 unsigned char *buf; 1380 unsigned int pipe; 1381 int err, size; 1382 1383 BT_DBG("%s", hdev->name); 1384 1385 if (!data->intr_ep) 1386 return -ENODEV; 1387 1388 urb = usb_alloc_urb(0, mem_flags); 1389 if (!urb) 1390 return -ENOMEM; 1391 1392 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1393 1394 buf = kmalloc(size, mem_flags); 1395 if (!buf) { 1396 usb_free_urb(urb); 1397 return -ENOMEM; 1398 } 1399 1400 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1401 1402 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1403 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1404 1405 urb->transfer_flags |= URB_FREE_BUFFER; 1406 1407 usb_anchor_urb(urb, &data->intr_anchor); 1408 1409 err = usb_submit_urb(urb, mem_flags); 1410 if (err < 0) { 1411 if (err != -EPERM && err != -ENODEV) 1412 bt_dev_err(hdev, "urb %p submission failed (%d)", 1413 urb, -err); 1414 if (err != -EPERM) 1415 hci_cmd_sync_cancel(hdev, -err); 1416 usb_unanchor_urb(urb); 1417 } 1418 1419 /* Only initialize intr_interval if URB poll sync is enabled */ 1420 if (!data->poll_sync) 1421 goto done; 1422 1423 /* The units are frames (milliseconds) for full and low speed devices, 1424 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1425 * devices. 1426 * 1427 * This is done once on open/resume so it shouldn't change even if 1428 * force_poll_sync changes. 1429 */ 1430 switch (urb->dev->speed) { 1431 case USB_SPEED_SUPER_PLUS: 1432 case USB_SPEED_SUPER: /* units are 125us */ 1433 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1434 break; 1435 default: 1436 data->intr_interval = msecs_to_jiffies(urb->interval); 1437 break; 1438 } 1439 1440 done: 1441 usb_free_urb(urb); 1442 1443 return err; 1444 } 1445 1446 static void btusb_bulk_complete(struct urb *urb) 1447 { 1448 struct hci_dev *hdev = urb->context; 1449 struct btusb_data *data = hci_get_drvdata(hdev); 1450 int err; 1451 1452 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1453 urb->actual_length); 1454 1455 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1456 return; 1457 1458 if (urb->status == 0) { 1459 hdev->stat.byte_rx += urb->actual_length; 1460 1461 if (data->recv_bulk(data, urb->transfer_buffer, 1462 urb->actual_length) < 0) { 1463 bt_dev_err(hdev, "corrupted ACL packet"); 1464 hdev->stat.err_rx++; 1465 } 1466 } else if (urb->status == -ENOENT) { 1467 /* Avoid suspend failed when usb_kill_urb */ 1468 return; 1469 } 1470 1471 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1472 return; 1473 1474 usb_anchor_urb(urb, &data->bulk_anchor); 1475 usb_mark_last_busy(data->udev); 1476 1477 err = usb_submit_urb(urb, GFP_ATOMIC); 1478 if (err < 0) { 1479 /* -EPERM: urb is being killed; 1480 * -ENODEV: device got disconnected 1481 */ 1482 if (err != -EPERM && err != -ENODEV) 1483 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1484 urb, -err); 1485 usb_unanchor_urb(urb); 1486 } 1487 } 1488 1489 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1490 { 1491 struct btusb_data *data = hci_get_drvdata(hdev); 1492 struct urb *urb; 1493 unsigned char *buf; 1494 unsigned int pipe; 1495 int err, size = HCI_MAX_FRAME_SIZE; 1496 1497 BT_DBG("%s", hdev->name); 1498 1499 if (!data->bulk_rx_ep) 1500 return -ENODEV; 1501 1502 urb = usb_alloc_urb(0, mem_flags); 1503 if (!urb) 1504 return -ENOMEM; 1505 1506 buf = kmalloc(size, mem_flags); 1507 if (!buf) { 1508 usb_free_urb(urb); 1509 return -ENOMEM; 1510 } 1511 1512 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1513 1514 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1515 btusb_bulk_complete, hdev); 1516 1517 urb->transfer_flags |= URB_FREE_BUFFER; 1518 1519 usb_mark_last_busy(data->udev); 1520 usb_anchor_urb(urb, &data->bulk_anchor); 1521 1522 err = usb_submit_urb(urb, mem_flags); 1523 if (err < 0) { 1524 if (err != -EPERM && err != -ENODEV) 1525 bt_dev_err(hdev, "urb %p submission failed (%d)", 1526 urb, -err); 1527 usb_unanchor_urb(urb); 1528 } 1529 1530 usb_free_urb(urb); 1531 1532 return err; 1533 } 1534 1535 static void btusb_isoc_complete(struct urb *urb) 1536 { 1537 struct hci_dev *hdev = urb->context; 1538 struct btusb_data *data = hci_get_drvdata(hdev); 1539 int i, err; 1540 1541 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1542 urb->actual_length); 1543 1544 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1545 return; 1546 1547 if (urb->status == 0) { 1548 for (i = 0; i < urb->number_of_packets; i++) { 1549 unsigned int offset = urb->iso_frame_desc[i].offset; 1550 unsigned int length = urb->iso_frame_desc[i].actual_length; 1551 1552 if (urb->iso_frame_desc[i].status) 1553 continue; 1554 1555 hdev->stat.byte_rx += length; 1556 1557 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1558 length) < 0) { 1559 bt_dev_err(hdev, "corrupted SCO packet"); 1560 hdev->stat.err_rx++; 1561 } 1562 } 1563 } else if (urb->status == -ENOENT) { 1564 /* Avoid suspend failed when usb_kill_urb */ 1565 return; 1566 } 1567 1568 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1569 return; 1570 1571 usb_anchor_urb(urb, &data->isoc_anchor); 1572 1573 err = usb_submit_urb(urb, GFP_ATOMIC); 1574 if (err < 0) { 1575 /* -EPERM: urb is being killed; 1576 * -ENODEV: device got disconnected 1577 */ 1578 if (err != -EPERM && err != -ENODEV) 1579 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1580 urb, -err); 1581 usb_unanchor_urb(urb); 1582 } 1583 } 1584 1585 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1586 int mtu, struct btusb_data *data) 1587 { 1588 int i = 0, offset = 0; 1589 unsigned int interval; 1590 1591 BT_DBG("len %d mtu %d", len, mtu); 1592 1593 /* For mSBC ALT 6 settings some chips need to transmit the data 1594 * continuously without the zero length of USB packets. 1595 */ 1596 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1597 goto ignore_usb_alt6_packet_flow; 1598 1599 /* For mSBC ALT 6 setting the host will send the packet at continuous 1600 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1601 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1602 * To maintain the rate we send 63bytes of usb packets alternatively for 1603 * 7ms and 8ms to maintain the rate as 7.5ms. 1604 */ 1605 if (data->usb_alt6_packet_flow) { 1606 interval = 7; 1607 data->usb_alt6_packet_flow = false; 1608 } else { 1609 interval = 6; 1610 data->usb_alt6_packet_flow = true; 1611 } 1612 1613 for (i = 0; i < interval; i++) { 1614 urb->iso_frame_desc[i].offset = offset; 1615 urb->iso_frame_desc[i].length = offset; 1616 } 1617 1618 ignore_usb_alt6_packet_flow: 1619 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1620 urb->iso_frame_desc[i].offset = offset; 1621 urb->iso_frame_desc[i].length = len; 1622 i++; 1623 } 1624 1625 urb->number_of_packets = i; 1626 } 1627 1628 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1629 { 1630 int i, offset = 0; 1631 1632 BT_DBG("len %d mtu %d", len, mtu); 1633 1634 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1635 i++, offset += mtu, len -= mtu) { 1636 urb->iso_frame_desc[i].offset = offset; 1637 urb->iso_frame_desc[i].length = mtu; 1638 } 1639 1640 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1641 urb->iso_frame_desc[i].offset = offset; 1642 urb->iso_frame_desc[i].length = len; 1643 i++; 1644 } 1645 1646 urb->number_of_packets = i; 1647 } 1648 1649 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1650 { 1651 struct btusb_data *data = hci_get_drvdata(hdev); 1652 struct urb *urb; 1653 unsigned char *buf; 1654 unsigned int pipe; 1655 int err, size; 1656 1657 BT_DBG("%s", hdev->name); 1658 1659 if (!data->isoc_rx_ep) 1660 return -ENODEV; 1661 1662 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1663 if (!urb) 1664 return -ENOMEM; 1665 1666 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1667 BTUSB_MAX_ISOC_FRAMES; 1668 1669 buf = kmalloc(size, mem_flags); 1670 if (!buf) { 1671 usb_free_urb(urb); 1672 return -ENOMEM; 1673 } 1674 1675 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1676 1677 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1678 hdev, data->isoc_rx_ep->bInterval); 1679 1680 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1681 1682 __fill_isoc_descriptor(urb, size, 1683 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1684 1685 usb_anchor_urb(urb, &data->isoc_anchor); 1686 1687 err = usb_submit_urb(urb, mem_flags); 1688 if (err < 0) { 1689 if (err != -EPERM && err != -ENODEV) 1690 bt_dev_err(hdev, "urb %p submission failed (%d)", 1691 urb, -err); 1692 usb_unanchor_urb(urb); 1693 } 1694 1695 usb_free_urb(urb); 1696 1697 return err; 1698 } 1699 1700 static void btusb_diag_complete(struct urb *urb) 1701 { 1702 struct hci_dev *hdev = urb->context; 1703 struct btusb_data *data = hci_get_drvdata(hdev); 1704 int err; 1705 1706 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1707 urb->actual_length); 1708 1709 if (urb->status == 0) { 1710 struct sk_buff *skb; 1711 1712 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1713 if (skb) { 1714 skb_put_data(skb, urb->transfer_buffer, 1715 urb->actual_length); 1716 hci_recv_diag(hdev, skb); 1717 } 1718 } else if (urb->status == -ENOENT) { 1719 /* Avoid suspend failed when usb_kill_urb */ 1720 return; 1721 } 1722 1723 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1724 return; 1725 1726 usb_anchor_urb(urb, &data->diag_anchor); 1727 usb_mark_last_busy(data->udev); 1728 1729 err = usb_submit_urb(urb, GFP_ATOMIC); 1730 if (err < 0) { 1731 /* -EPERM: urb is being killed; 1732 * -ENODEV: device got disconnected 1733 */ 1734 if (err != -EPERM && err != -ENODEV) 1735 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1736 urb, -err); 1737 usb_unanchor_urb(urb); 1738 } 1739 } 1740 1741 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1742 { 1743 struct btusb_data *data = hci_get_drvdata(hdev); 1744 struct urb *urb; 1745 unsigned char *buf; 1746 unsigned int pipe; 1747 int err, size = HCI_MAX_FRAME_SIZE; 1748 1749 BT_DBG("%s", hdev->name); 1750 1751 if (!data->diag_rx_ep) 1752 return -ENODEV; 1753 1754 urb = usb_alloc_urb(0, mem_flags); 1755 if (!urb) 1756 return -ENOMEM; 1757 1758 buf = kmalloc(size, mem_flags); 1759 if (!buf) { 1760 usb_free_urb(urb); 1761 return -ENOMEM; 1762 } 1763 1764 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1765 1766 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1767 btusb_diag_complete, hdev); 1768 1769 urb->transfer_flags |= URB_FREE_BUFFER; 1770 1771 usb_mark_last_busy(data->udev); 1772 usb_anchor_urb(urb, &data->diag_anchor); 1773 1774 err = usb_submit_urb(urb, mem_flags); 1775 if (err < 0) { 1776 if (err != -EPERM && err != -ENODEV) 1777 bt_dev_err(hdev, "urb %p submission failed (%d)", 1778 urb, -err); 1779 usb_unanchor_urb(urb); 1780 } 1781 1782 usb_free_urb(urb); 1783 1784 return err; 1785 } 1786 1787 static void btusb_tx_complete(struct urb *urb) 1788 { 1789 struct sk_buff *skb = urb->context; 1790 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1791 struct btusb_data *data = hci_get_drvdata(hdev); 1792 unsigned long flags; 1793 1794 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1795 urb->actual_length); 1796 1797 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1798 goto done; 1799 1800 if (!urb->status) { 1801 hdev->stat.byte_tx += urb->transfer_buffer_length; 1802 } else { 1803 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1804 hci_cmd_sync_cancel(hdev, -urb->status); 1805 hdev->stat.err_tx++; 1806 } 1807 1808 done: 1809 spin_lock_irqsave(&data->txlock, flags); 1810 data->tx_in_flight--; 1811 spin_unlock_irqrestore(&data->txlock, flags); 1812 1813 kfree(urb->setup_packet); 1814 1815 kfree_skb(skb); 1816 } 1817 1818 static void btusb_isoc_tx_complete(struct urb *urb) 1819 { 1820 struct sk_buff *skb = urb->context; 1821 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1822 1823 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1824 urb->actual_length); 1825 1826 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1827 goto done; 1828 1829 if (!urb->status) 1830 hdev->stat.byte_tx += urb->transfer_buffer_length; 1831 else 1832 hdev->stat.err_tx++; 1833 1834 done: 1835 kfree(urb->setup_packet); 1836 1837 kfree_skb(skb); 1838 } 1839 1840 static int btusb_open(struct hci_dev *hdev) 1841 { 1842 struct btusb_data *data = hci_get_drvdata(hdev); 1843 int err; 1844 1845 BT_DBG("%s", hdev->name); 1846 1847 err = usb_autopm_get_interface(data->intf); 1848 if (err < 0) 1849 return err; 1850 1851 /* Patching USB firmware files prior to starting any URBs of HCI path 1852 * It is more safe to use USB bulk channel for downloading USB patch 1853 */ 1854 if (data->setup_on_usb) { 1855 err = data->setup_on_usb(hdev); 1856 if (err < 0) 1857 goto setup_fail; 1858 } 1859 1860 data->intf->needs_remote_wakeup = 1; 1861 1862 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1863 goto done; 1864 1865 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1866 if (err < 0) 1867 goto failed; 1868 1869 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1870 if (err < 0) { 1871 usb_kill_anchored_urbs(&data->intr_anchor); 1872 goto failed; 1873 } 1874 1875 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1876 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1877 1878 if (data->diag) { 1879 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1880 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1881 } 1882 1883 done: 1884 usb_autopm_put_interface(data->intf); 1885 return 0; 1886 1887 failed: 1888 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1889 setup_fail: 1890 usb_autopm_put_interface(data->intf); 1891 return err; 1892 } 1893 1894 static void btusb_stop_traffic(struct btusb_data *data) 1895 { 1896 usb_kill_anchored_urbs(&data->intr_anchor); 1897 usb_kill_anchored_urbs(&data->bulk_anchor); 1898 usb_kill_anchored_urbs(&data->isoc_anchor); 1899 usb_kill_anchored_urbs(&data->diag_anchor); 1900 usb_kill_anchored_urbs(&data->ctrl_anchor); 1901 } 1902 1903 static int btusb_close(struct hci_dev *hdev) 1904 { 1905 struct btusb_data *data = hci_get_drvdata(hdev); 1906 int err; 1907 1908 BT_DBG("%s", hdev->name); 1909 1910 cancel_delayed_work(&data->rx_work); 1911 cancel_work_sync(&data->work); 1912 cancel_work_sync(&data->waker); 1913 1914 skb_queue_purge(&data->acl_q); 1915 1916 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1917 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1918 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1919 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1920 1921 btusb_stop_traffic(data); 1922 btusb_free_frags(data); 1923 1924 err = usb_autopm_get_interface(data->intf); 1925 if (err < 0) 1926 goto failed; 1927 1928 data->intf->needs_remote_wakeup = 0; 1929 1930 /* Enable remote wake up for auto-suspend */ 1931 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1932 data->intf->needs_remote_wakeup = 1; 1933 1934 usb_autopm_put_interface(data->intf); 1935 1936 failed: 1937 usb_scuttle_anchored_urbs(&data->deferred); 1938 return 0; 1939 } 1940 1941 static int btusb_flush(struct hci_dev *hdev) 1942 { 1943 struct btusb_data *data = hci_get_drvdata(hdev); 1944 1945 BT_DBG("%s", hdev->name); 1946 1947 cancel_delayed_work(&data->rx_work); 1948 1949 skb_queue_purge(&data->acl_q); 1950 1951 usb_kill_anchored_urbs(&data->tx_anchor); 1952 btusb_free_frags(data); 1953 1954 return 0; 1955 } 1956 1957 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1958 { 1959 struct btusb_data *data = hci_get_drvdata(hdev); 1960 struct usb_ctrlrequest *dr; 1961 struct urb *urb; 1962 unsigned int pipe; 1963 1964 urb = usb_alloc_urb(0, GFP_KERNEL); 1965 if (!urb) 1966 return ERR_PTR(-ENOMEM); 1967 1968 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1969 if (!dr) { 1970 usb_free_urb(urb); 1971 return ERR_PTR(-ENOMEM); 1972 } 1973 1974 dr->bRequestType = data->cmdreq_type; 1975 dr->bRequest = data->cmdreq; 1976 dr->wIndex = 0; 1977 dr->wValue = 0; 1978 dr->wLength = __cpu_to_le16(skb->len); 1979 1980 pipe = usb_sndctrlpipe(data->udev, 0x00); 1981 1982 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1983 skb->data, skb->len, btusb_tx_complete, skb); 1984 1985 skb->dev = (void *)hdev; 1986 1987 return urb; 1988 } 1989 1990 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1991 { 1992 struct btusb_data *data = hci_get_drvdata(hdev); 1993 struct urb *urb; 1994 unsigned int pipe; 1995 1996 if (!data->bulk_tx_ep) 1997 return ERR_PTR(-ENODEV); 1998 1999 urb = usb_alloc_urb(0, GFP_KERNEL); 2000 if (!urb) 2001 return ERR_PTR(-ENOMEM); 2002 2003 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2004 2005 usb_fill_bulk_urb(urb, data->udev, pipe, 2006 skb->data, skb->len, btusb_tx_complete, skb); 2007 2008 skb->dev = (void *)hdev; 2009 2010 return urb; 2011 } 2012 2013 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2014 { 2015 struct btusb_data *data = hci_get_drvdata(hdev); 2016 struct urb *urb; 2017 unsigned int pipe; 2018 2019 if (!data->isoc_tx_ep) 2020 return ERR_PTR(-ENODEV); 2021 2022 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2023 if (!urb) 2024 return ERR_PTR(-ENOMEM); 2025 2026 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2027 2028 usb_fill_int_urb(urb, data->udev, pipe, 2029 skb->data, skb->len, btusb_isoc_tx_complete, 2030 skb, data->isoc_tx_ep->bInterval); 2031 2032 urb->transfer_flags = URB_ISO_ASAP; 2033 2034 if (data->isoc_altsetting == 6) 2035 __fill_isoc_descriptor_msbc(urb, skb->len, 2036 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2037 data); 2038 else 2039 __fill_isoc_descriptor(urb, skb->len, 2040 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2041 skb->dev = (void *)hdev; 2042 2043 return urb; 2044 } 2045 2046 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2047 { 2048 struct btusb_data *data = hci_get_drvdata(hdev); 2049 int err; 2050 2051 usb_anchor_urb(urb, &data->tx_anchor); 2052 2053 err = usb_submit_urb(urb, GFP_KERNEL); 2054 if (err < 0) { 2055 if (err != -EPERM && err != -ENODEV) 2056 bt_dev_err(hdev, "urb %p submission failed (%d)", 2057 urb, -err); 2058 kfree(urb->setup_packet); 2059 usb_unanchor_urb(urb); 2060 } else { 2061 usb_mark_last_busy(data->udev); 2062 } 2063 2064 usb_free_urb(urb); 2065 return err; 2066 } 2067 2068 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2069 { 2070 struct btusb_data *data = hci_get_drvdata(hdev); 2071 unsigned long flags; 2072 bool suspending; 2073 2074 spin_lock_irqsave(&data->txlock, flags); 2075 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2076 if (!suspending) 2077 data->tx_in_flight++; 2078 spin_unlock_irqrestore(&data->txlock, flags); 2079 2080 if (!suspending) 2081 return submit_tx_urb(hdev, urb); 2082 2083 usb_anchor_urb(urb, &data->deferred); 2084 schedule_work(&data->waker); 2085 2086 usb_free_urb(urb); 2087 return 0; 2088 } 2089 2090 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2091 { 2092 struct urb *urb; 2093 2094 BT_DBG("%s", hdev->name); 2095 2096 switch (hci_skb_pkt_type(skb)) { 2097 case HCI_COMMAND_PKT: 2098 urb = alloc_ctrl_urb(hdev, skb); 2099 if (IS_ERR(urb)) 2100 return PTR_ERR(urb); 2101 2102 hdev->stat.cmd_tx++; 2103 return submit_or_queue_tx_urb(hdev, urb); 2104 2105 case HCI_ACLDATA_PKT: 2106 urb = alloc_bulk_urb(hdev, skb); 2107 if (IS_ERR(urb)) 2108 return PTR_ERR(urb); 2109 2110 hdev->stat.acl_tx++; 2111 return submit_or_queue_tx_urb(hdev, urb); 2112 2113 case HCI_SCODATA_PKT: 2114 if (hci_conn_num(hdev, SCO_LINK) < 1) 2115 return -ENODEV; 2116 2117 urb = alloc_isoc_urb(hdev, skb); 2118 if (IS_ERR(urb)) 2119 return PTR_ERR(urb); 2120 2121 hdev->stat.sco_tx++; 2122 return submit_tx_urb(hdev, urb); 2123 2124 case HCI_ISODATA_PKT: 2125 urb = alloc_bulk_urb(hdev, skb); 2126 if (IS_ERR(urb)) 2127 return PTR_ERR(urb); 2128 2129 return submit_or_queue_tx_urb(hdev, urb); 2130 } 2131 2132 return -EILSEQ; 2133 } 2134 2135 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2136 { 2137 struct btusb_data *data = hci_get_drvdata(hdev); 2138 2139 BT_DBG("%s evt %d", hdev->name, evt); 2140 2141 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2142 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2143 data->air_mode = evt; 2144 schedule_work(&data->work); 2145 } 2146 } 2147 2148 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2149 { 2150 struct btusb_data *data = hci_get_drvdata(hdev); 2151 struct usb_interface *intf = data->isoc; 2152 struct usb_endpoint_descriptor *ep_desc; 2153 int i, err; 2154 2155 if (!data->isoc) 2156 return -ENODEV; 2157 2158 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2159 if (err < 0) { 2160 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2161 return err; 2162 } 2163 2164 data->isoc_altsetting = altsetting; 2165 2166 data->isoc_tx_ep = NULL; 2167 data->isoc_rx_ep = NULL; 2168 2169 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2170 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2171 2172 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2173 data->isoc_tx_ep = ep_desc; 2174 continue; 2175 } 2176 2177 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2178 data->isoc_rx_ep = ep_desc; 2179 continue; 2180 } 2181 } 2182 2183 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2184 bt_dev_err(hdev, "invalid SCO descriptors"); 2185 return -ENODEV; 2186 } 2187 2188 return 0; 2189 } 2190 2191 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2192 { 2193 struct btusb_data *data = hci_get_drvdata(hdev); 2194 int err; 2195 2196 if (data->isoc_altsetting != new_alts) { 2197 unsigned long flags; 2198 2199 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2200 usb_kill_anchored_urbs(&data->isoc_anchor); 2201 2202 /* When isochronous alternate setting needs to be 2203 * changed, because SCO connection has been added 2204 * or removed, a packet fragment may be left in the 2205 * reassembling state. This could lead to wrongly 2206 * assembled fragments. 2207 * 2208 * Clear outstanding fragment when selecting a new 2209 * alternate setting. 2210 */ 2211 spin_lock_irqsave(&data->rxlock, flags); 2212 dev_kfree_skb_irq(data->sco_skb); 2213 data->sco_skb = NULL; 2214 spin_unlock_irqrestore(&data->rxlock, flags); 2215 2216 err = __set_isoc_interface(hdev, new_alts); 2217 if (err < 0) 2218 return err; 2219 } 2220 2221 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2222 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2223 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2224 else 2225 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2226 } 2227 2228 return 0; 2229 } 2230 2231 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2232 int alt) 2233 { 2234 struct usb_interface *intf = data->isoc; 2235 int i; 2236 2237 BT_DBG("Looking for Alt no :%d", alt); 2238 2239 if (!intf) 2240 return NULL; 2241 2242 for (i = 0; i < intf->num_altsetting; i++) { 2243 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2244 return &intf->altsetting[i]; 2245 } 2246 2247 return NULL; 2248 } 2249 2250 static void btusb_work(struct work_struct *work) 2251 { 2252 struct btusb_data *data = container_of(work, struct btusb_data, work); 2253 struct hci_dev *hdev = data->hdev; 2254 int new_alts = 0; 2255 int err; 2256 2257 if (data->sco_num > 0) { 2258 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2259 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2260 if (err < 0) { 2261 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2262 usb_kill_anchored_urbs(&data->isoc_anchor); 2263 return; 2264 } 2265 2266 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2267 } 2268 2269 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2270 if (hdev->voice_setting & 0x0020) { 2271 static const int alts[3] = { 2, 4, 5 }; 2272 2273 new_alts = alts[data->sco_num - 1]; 2274 } else { 2275 new_alts = data->sco_num; 2276 } 2277 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2278 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2279 * many adapters do not support it. Alt 1 appears to 2280 * work for all adapters that do not have alt 6, and 2281 * which work with WBS at all. Some devices prefer 2282 * alt 3 (HCI payload >= 60 Bytes let air packet 2283 * data satisfy 60 bytes), requiring 2284 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2285 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2286 */ 2287 if (btusb_find_altsetting(data, 6)) 2288 new_alts = 6; 2289 else if (btusb_find_altsetting(data, 3) && 2290 hdev->sco_mtu >= 72 && 2291 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2292 new_alts = 3; 2293 else 2294 new_alts = 1; 2295 } 2296 2297 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2298 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2299 } else { 2300 usb_kill_anchored_urbs(&data->isoc_anchor); 2301 2302 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2303 __set_isoc_interface(hdev, 0); 2304 2305 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2306 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2307 } 2308 } 2309 2310 static void btusb_waker(struct work_struct *work) 2311 { 2312 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2313 int err; 2314 2315 err = usb_autopm_get_interface(data->intf); 2316 if (err < 0) 2317 return; 2318 2319 usb_autopm_put_interface(data->intf); 2320 } 2321 2322 static void btusb_rx_work(struct work_struct *work) 2323 { 2324 struct btusb_data *data = container_of(work, struct btusb_data, 2325 rx_work.work); 2326 struct sk_buff *skb; 2327 2328 /* Dequeue ACL data received during the interval */ 2329 while ((skb = skb_dequeue(&data->acl_q))) 2330 data->recv_acl(data->hdev, skb); 2331 } 2332 2333 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2334 { 2335 struct sk_buff *skb; 2336 u8 val = 0x00; 2337 2338 BT_DBG("%s", hdev->name); 2339 2340 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2341 if (IS_ERR(skb)) 2342 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2343 else 2344 kfree_skb(skb); 2345 2346 return 0; 2347 } 2348 2349 static int btusb_setup_csr(struct hci_dev *hdev) 2350 { 2351 struct btusb_data *data = hci_get_drvdata(hdev); 2352 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2353 struct hci_rp_read_local_version *rp; 2354 struct sk_buff *skb; 2355 bool is_fake = false; 2356 int ret; 2357 2358 BT_DBG("%s", hdev->name); 2359 2360 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2361 HCI_INIT_TIMEOUT); 2362 if (IS_ERR(skb)) { 2363 int err = PTR_ERR(skb); 2364 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2365 return err; 2366 } 2367 2368 rp = skb_pull_data(skb, sizeof(*rp)); 2369 if (!rp) { 2370 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2371 kfree_skb(skb); 2372 return -EIO; 2373 } 2374 2375 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2376 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2377 2378 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2379 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2380 le16_to_cpu(rp->manufacturer)); 2381 2382 /* Detect a wide host of Chinese controllers that aren't CSR. 2383 * 2384 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2385 * 2386 * The main thing they have in common is that these are really popular low-cost 2387 * options that support newer Bluetooth versions but rely on heavy VID/PID 2388 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2389 * 2390 * We detect actual CSR devices by checking that the HCI manufacturer code 2391 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2392 * HCI rev values always match. As they both store the firmware number. 2393 */ 2394 if (le16_to_cpu(rp->manufacturer) != 10 || 2395 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2396 is_fake = true; 2397 2398 /* Known legit CSR firmware build numbers and their supported BT versions: 2399 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2400 * - 1.2 (0x2) -> 0x04d9, 0x0529 2401 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2402 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2403 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2404 * 2405 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2406 * support BT 1.1 only; so it's a dead giveaway when some 2407 * third-party BT 4.0 dongle reuses it. 2408 */ 2409 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2410 rp->hci_ver > BLUETOOTH_VER_1_1) 2411 is_fake = true; 2412 2413 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2414 rp->hci_ver > BLUETOOTH_VER_1_2) 2415 is_fake = true; 2416 2417 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2418 rp->hci_ver > BLUETOOTH_VER_2_0) 2419 is_fake = true; 2420 2421 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2422 rp->hci_ver > BLUETOOTH_VER_2_1) 2423 is_fake = true; 2424 2425 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2426 rp->hci_ver > BLUETOOTH_VER_4_0) 2427 is_fake = true; 2428 2429 /* Other clones which beat all the above checks */ 2430 else if (bcdDevice == 0x0134 && 2431 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2432 rp->hci_ver == BLUETOOTH_VER_2_0) 2433 is_fake = true; 2434 2435 if (is_fake) { 2436 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2437 2438 /* Generally these clones have big discrepancies between 2439 * advertised features and what's actually supported. 2440 * Probably will need to be expanded in the future; 2441 * without these the controller will lock up. 2442 */ 2443 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2444 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2445 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2446 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2447 2448 /* Clear the reset quirk since this is not an actual 2449 * early Bluetooth 1.1 device from CSR. 2450 */ 2451 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2452 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2453 2454 /* 2455 * Special workaround for these BT 4.0 chip clones, and potentially more: 2456 * 2457 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2458 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2459 * 2460 * These controllers are really messed-up. 2461 * 2462 * 1. Their bulk RX endpoint will never report any data unless 2463 * the device was suspended at least once (yes, really). 2464 * 2. They will not wakeup when autosuspended and receiving data 2465 * on their bulk RX endpoint from e.g. a keyboard or mouse 2466 * (IOW remote-wakeup support is broken for the bulk endpoint). 2467 * 2468 * To fix 1. enable runtime-suspend, force-suspend the 2469 * HCI and then wake-it up by disabling runtime-suspend. 2470 * 2471 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2472 * will still be autosuspended when it is not open. 2473 * 2474 * -- 2475 * 2476 * Because these are widespread problems we prefer generic solutions; so 2477 * apply this initialization quirk to every controller that gets here, 2478 * it should be harmless. The alternative is to not work at all. 2479 */ 2480 pm_runtime_allow(&data->udev->dev); 2481 2482 ret = pm_runtime_suspend(&data->udev->dev); 2483 if (ret >= 0) 2484 msleep(200); 2485 else 2486 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2487 2488 pm_runtime_forbid(&data->udev->dev); 2489 2490 device_set_wakeup_capable(&data->udev->dev, false); 2491 2492 /* Re-enable autosuspend if this was requested */ 2493 if (enable_autosuspend) 2494 usb_enable_autosuspend(data->udev); 2495 } 2496 2497 kfree_skb(skb); 2498 2499 return 0; 2500 } 2501 2502 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2503 { 2504 struct sk_buff *skb; 2505 struct hci_event_hdr *hdr; 2506 struct hci_ev_cmd_complete *evt; 2507 2508 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2509 if (!skb) 2510 return -ENOMEM; 2511 2512 hdr = skb_put(skb, sizeof(*hdr)); 2513 hdr->evt = HCI_EV_CMD_COMPLETE; 2514 hdr->plen = sizeof(*evt) + 1; 2515 2516 evt = skb_put(skb, sizeof(*evt)); 2517 evt->ncmd = 0x01; 2518 evt->opcode = cpu_to_le16(opcode); 2519 2520 skb_put_u8(skb, 0x00); 2521 2522 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2523 2524 return hci_recv_frame(hdev, skb); 2525 } 2526 2527 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2528 int count) 2529 { 2530 struct hci_dev *hdev = data->hdev; 2531 2532 /* When the device is in bootloader mode, then it can send 2533 * events via the bulk endpoint. These events are treated the 2534 * same way as the ones received from the interrupt endpoint. 2535 */ 2536 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2537 return btusb_recv_intr(data, buffer, count); 2538 2539 return btusb_recv_bulk(data, buffer, count); 2540 } 2541 2542 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2543 { 2544 struct urb *urb; 2545 2546 BT_DBG("%s", hdev->name); 2547 2548 switch (hci_skb_pkt_type(skb)) { 2549 case HCI_COMMAND_PKT: 2550 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2551 struct hci_command_hdr *cmd = (void *)skb->data; 2552 __u16 opcode = le16_to_cpu(cmd->opcode); 2553 2554 /* When in bootloader mode and the command 0xfc09 2555 * is received, it needs to be send down the 2556 * bulk endpoint. So allocate a bulk URB instead. 2557 */ 2558 if (opcode == 0xfc09) 2559 urb = alloc_bulk_urb(hdev, skb); 2560 else 2561 urb = alloc_ctrl_urb(hdev, skb); 2562 2563 /* When the 0xfc01 command is issued to boot into 2564 * the operational firmware, it will actually not 2565 * send a command complete event. To keep the flow 2566 * control working inject that event here. 2567 */ 2568 if (opcode == 0xfc01) 2569 inject_cmd_complete(hdev, opcode); 2570 } else { 2571 urb = alloc_ctrl_urb(hdev, skb); 2572 } 2573 if (IS_ERR(urb)) 2574 return PTR_ERR(urb); 2575 2576 hdev->stat.cmd_tx++; 2577 return submit_or_queue_tx_urb(hdev, urb); 2578 2579 case HCI_ACLDATA_PKT: 2580 urb = alloc_bulk_urb(hdev, skb); 2581 if (IS_ERR(urb)) 2582 return PTR_ERR(urb); 2583 2584 hdev->stat.acl_tx++; 2585 return submit_or_queue_tx_urb(hdev, urb); 2586 2587 case HCI_SCODATA_PKT: 2588 if (hci_conn_num(hdev, SCO_LINK) < 1) 2589 return -ENODEV; 2590 2591 urb = alloc_isoc_urb(hdev, skb); 2592 if (IS_ERR(urb)) 2593 return PTR_ERR(urb); 2594 2595 hdev->stat.sco_tx++; 2596 return submit_tx_urb(hdev, urb); 2597 2598 case HCI_ISODATA_PKT: 2599 urb = alloc_bulk_urb(hdev, skb); 2600 if (IS_ERR(urb)) 2601 return PTR_ERR(urb); 2602 2603 return submit_or_queue_tx_urb(hdev, urb); 2604 } 2605 2606 return -EILSEQ; 2607 } 2608 2609 static int btusb_setup_realtek(struct hci_dev *hdev) 2610 { 2611 struct btusb_data *data = hci_get_drvdata(hdev); 2612 int ret; 2613 2614 ret = btrtl_setup_realtek(hdev); 2615 2616 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2617 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2618 2619 return ret; 2620 } 2621 2622 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2623 { 2624 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2625 struct rtk_dev_coredump_hdr hdr = { 2626 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2627 }; 2628 2629 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2630 skb->len); 2631 2632 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2633 kfree_skb(skb); 2634 2635 return 0; 2636 } 2637 2638 return hci_recv_frame(hdev, skb); 2639 } 2640 2641 /* UHW CR mapping */ 2642 #define MTK_BT_MISC 0x70002510 2643 #define MTK_BT_SUBSYS_RST 0x70002610 2644 #define MTK_UDMA_INT_STA_BT 0x74000024 2645 #define MTK_UDMA_INT_STA_BT1 0x74000308 2646 #define MTK_BT_WDT_STATUS 0x740003A0 2647 #define MTK_EP_RST_OPT 0x74011890 2648 #define MTK_EP_RST_IN_OUT_OPT 0x00010001 2649 #define MTK_BT_RST_DONE 0x00000100 2650 #define MTK_BT_RESET_REG_CONNV3 0x70028610 2651 #define MTK_BT_READ_DEV_ID 0x70010200 2652 2653 2654 static void btusb_mtk_wmt_recv(struct urb *urb) 2655 { 2656 struct hci_dev *hdev = urb->context; 2657 struct btusb_data *data = hci_get_drvdata(hdev); 2658 struct sk_buff *skb; 2659 int err; 2660 2661 if (urb->status == 0 && urb->actual_length > 0) { 2662 hdev->stat.byte_rx += urb->actual_length; 2663 2664 /* WMT event shouldn't be fragmented and the size should be 2665 * less than HCI_WMT_MAX_EVENT_SIZE. 2666 */ 2667 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC); 2668 if (!skb) { 2669 hdev->stat.err_rx++; 2670 kfree(urb->setup_packet); 2671 return; 2672 } 2673 2674 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2675 skb_put_data(skb, urb->transfer_buffer, urb->actual_length); 2676 2677 /* When someone waits for the WMT event, the skb is being cloned 2678 * and being processed the events from there then. 2679 */ 2680 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) { 2681 data->evt_skb = skb_clone(skb, GFP_ATOMIC); 2682 if (!data->evt_skb) { 2683 kfree_skb(skb); 2684 kfree(urb->setup_packet); 2685 return; 2686 } 2687 } 2688 2689 err = hci_recv_frame(hdev, skb); 2690 if (err < 0) { 2691 kfree_skb(data->evt_skb); 2692 data->evt_skb = NULL; 2693 kfree(urb->setup_packet); 2694 return; 2695 } 2696 2697 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT, 2698 &data->flags)) { 2699 /* Barrier to sync with other CPUs */ 2700 smp_mb__after_atomic(); 2701 wake_up_bit(&data->flags, 2702 BTUSB_TX_WAIT_VND_EVT); 2703 } 2704 kfree(urb->setup_packet); 2705 return; 2706 } else if (urb->status == -ENOENT) { 2707 /* Avoid suspend failed when usb_kill_urb */ 2708 return; 2709 } 2710 2711 usb_mark_last_busy(data->udev); 2712 2713 /* The URB complete handler is still called with urb->actual_length = 0 2714 * when the event is not available, so we should keep re-submitting 2715 * URB until WMT event returns, Also, It's necessary to wait some time 2716 * between the two consecutive control URBs to relax the target device 2717 * to generate the event. Otherwise, the WMT event cannot return from 2718 * the device successfully. 2719 */ 2720 udelay(500); 2721 2722 usb_anchor_urb(urb, &data->ctrl_anchor); 2723 err = usb_submit_urb(urb, GFP_ATOMIC); 2724 if (err < 0) { 2725 kfree(urb->setup_packet); 2726 /* -EPERM: urb is being killed; 2727 * -ENODEV: device got disconnected 2728 */ 2729 if (err != -EPERM && err != -ENODEV) 2730 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2731 urb, -err); 2732 usb_unanchor_urb(urb); 2733 } 2734 } 2735 2736 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev) 2737 { 2738 struct btusb_data *data = hci_get_drvdata(hdev); 2739 struct usb_ctrlrequest *dr; 2740 unsigned char *buf; 2741 int err, size = 64; 2742 unsigned int pipe; 2743 struct urb *urb; 2744 2745 urb = usb_alloc_urb(0, GFP_KERNEL); 2746 if (!urb) 2747 return -ENOMEM; 2748 2749 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2750 if (!dr) { 2751 usb_free_urb(urb); 2752 return -ENOMEM; 2753 } 2754 2755 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN; 2756 dr->bRequest = 1; 2757 dr->wIndex = cpu_to_le16(0); 2758 dr->wValue = cpu_to_le16(48); 2759 dr->wLength = cpu_to_le16(size); 2760 2761 buf = kmalloc(size, GFP_KERNEL); 2762 if (!buf) { 2763 kfree(dr); 2764 usb_free_urb(urb); 2765 return -ENOMEM; 2766 } 2767 2768 pipe = usb_rcvctrlpipe(data->udev, 0); 2769 2770 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2771 buf, size, btusb_mtk_wmt_recv, hdev); 2772 2773 urb->transfer_flags |= URB_FREE_BUFFER; 2774 2775 usb_anchor_urb(urb, &data->ctrl_anchor); 2776 err = usb_submit_urb(urb, GFP_KERNEL); 2777 if (err < 0) { 2778 if (err != -EPERM && err != -ENODEV) 2779 bt_dev_err(hdev, "urb %p submission failed (%d)", 2780 urb, -err); 2781 usb_unanchor_urb(urb); 2782 } 2783 2784 usb_free_urb(urb); 2785 2786 return err; 2787 } 2788 2789 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev, 2790 struct btmtk_hci_wmt_params *wmt_params) 2791 { 2792 struct btusb_data *data = hci_get_drvdata(hdev); 2793 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc; 2794 u32 hlen, status = BTMTK_WMT_INVALID; 2795 struct btmtk_hci_wmt_evt *wmt_evt; 2796 struct btmtk_hci_wmt_cmd *wc; 2797 struct btmtk_wmt_hdr *hdr; 2798 int err; 2799 2800 /* Send the WMT command and wait until the WMT event returns */ 2801 hlen = sizeof(*hdr) + wmt_params->dlen; 2802 if (hlen > 255) 2803 return -EINVAL; 2804 2805 wc = kzalloc(hlen, GFP_KERNEL); 2806 if (!wc) 2807 return -ENOMEM; 2808 2809 hdr = &wc->hdr; 2810 hdr->dir = 1; 2811 hdr->op = wmt_params->op; 2812 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1); 2813 hdr->flag = wmt_params->flag; 2814 memcpy(wc->data, wmt_params->data, wmt_params->dlen); 2815 2816 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2817 2818 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling, 2819 * it needs constantly polling control pipe until the host received the 2820 * WMT event, thus, we should require to specifically acquire PM counter 2821 * on the USB to prevent the interface from entering auto suspended 2822 * while WMT cmd/event in progress. 2823 */ 2824 err = usb_autopm_get_interface(data->intf); 2825 if (err < 0) 2826 goto err_free_wc; 2827 2828 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc); 2829 2830 if (err < 0) { 2831 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2832 usb_autopm_put_interface(data->intf); 2833 goto err_free_wc; 2834 } 2835 2836 /* Submit control IN URB on demand to process the WMT event */ 2837 err = btusb_mtk_submit_wmt_recv_urb(hdev); 2838 2839 usb_autopm_put_interface(data->intf); 2840 2841 if (err < 0) 2842 goto err_free_wc; 2843 2844 /* The vendor specific WMT commands are all answered by a vendor 2845 * specific event and will have the Command Status or Command 2846 * Complete as with usual HCI command flow control. 2847 * 2848 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT 2849 * state to be cleared. The driver specific event receive routine 2850 * will clear that state and with that indicate completion of the 2851 * WMT command. 2852 */ 2853 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT, 2854 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT); 2855 if (err == -EINTR) { 2856 bt_dev_err(hdev, "Execution of wmt command interrupted"); 2857 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2858 goto err_free_wc; 2859 } 2860 2861 if (err) { 2862 bt_dev_err(hdev, "Execution of wmt command timed out"); 2863 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2864 err = -ETIMEDOUT; 2865 goto err_free_wc; 2866 } 2867 2868 if (data->evt_skb == NULL) 2869 goto err_free_wc; 2870 2871 /* Parse and handle the return WMT event */ 2872 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; 2873 if (wmt_evt->whdr.op != hdr->op) { 2874 bt_dev_err(hdev, "Wrong op received %d expected %d", 2875 wmt_evt->whdr.op, hdr->op); 2876 err = -EIO; 2877 goto err_free_skb; 2878 } 2879 2880 switch (wmt_evt->whdr.op) { 2881 case BTMTK_WMT_SEMAPHORE: 2882 if (wmt_evt->whdr.flag == 2) 2883 status = BTMTK_WMT_PATCH_UNDONE; 2884 else 2885 status = BTMTK_WMT_PATCH_DONE; 2886 break; 2887 case BTMTK_WMT_FUNC_CTRL: 2888 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; 2889 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) 2890 status = BTMTK_WMT_ON_DONE; 2891 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) 2892 status = BTMTK_WMT_ON_PROGRESS; 2893 else 2894 status = BTMTK_WMT_ON_UNDONE; 2895 break; 2896 case BTMTK_WMT_PATCH_DWNLD: 2897 if (wmt_evt->whdr.flag == 2) 2898 status = BTMTK_WMT_PATCH_DONE; 2899 else if (wmt_evt->whdr.flag == 1) 2900 status = BTMTK_WMT_PATCH_PROGRESS; 2901 else 2902 status = BTMTK_WMT_PATCH_UNDONE; 2903 break; 2904 } 2905 2906 if (wmt_params->status) 2907 *wmt_params->status = status; 2908 2909 err_free_skb: 2910 kfree_skb(data->evt_skb); 2911 data->evt_skb = NULL; 2912 err_free_wc: 2913 kfree(wc); 2914 return err; 2915 } 2916 2917 static int btusb_mtk_func_query(struct hci_dev *hdev) 2918 { 2919 struct btmtk_hci_wmt_params wmt_params; 2920 int status, err; 2921 u8 param = 0; 2922 2923 /* Query whether the function is enabled */ 2924 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2925 wmt_params.flag = 4; 2926 wmt_params.dlen = sizeof(param); 2927 wmt_params.data = ¶m; 2928 wmt_params.status = &status; 2929 2930 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2931 if (err < 0) { 2932 bt_dev_err(hdev, "Failed to query function status (%d)", err); 2933 return err; 2934 } 2935 2936 return status; 2937 } 2938 2939 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) 2940 { 2941 struct hci_dev *hdev = data->hdev; 2942 int pipe, err; 2943 void *buf; 2944 2945 buf = kzalloc(4, GFP_KERNEL); 2946 if (!buf) 2947 return -ENOMEM; 2948 2949 put_unaligned_le32(val, buf); 2950 2951 pipe = usb_sndctrlpipe(data->udev, 0); 2952 err = usb_control_msg(data->udev, pipe, 0x02, 2953 0x5E, 2954 reg >> 16, reg & 0xffff, 2955 buf, 4, USB_CTRL_SET_TIMEOUT); 2956 if (err < 0) { 2957 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); 2958 goto err_free_buf; 2959 } 2960 2961 err_free_buf: 2962 kfree(buf); 2963 2964 return err; 2965 } 2966 2967 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2968 { 2969 struct hci_dev *hdev = data->hdev; 2970 int pipe, err; 2971 void *buf; 2972 2973 buf = kzalloc(4, GFP_KERNEL); 2974 if (!buf) 2975 return -ENOMEM; 2976 2977 pipe = usb_rcvctrlpipe(data->udev, 0); 2978 err = usb_control_msg(data->udev, pipe, 0x01, 2979 0xDE, 2980 reg >> 16, reg & 0xffff, 2981 buf, 4, USB_CTRL_GET_TIMEOUT); 2982 if (err < 0) { 2983 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); 2984 goto err_free_buf; 2985 } 2986 2987 *val = get_unaligned_le32(buf); 2988 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); 2989 2990 err_free_buf: 2991 kfree(buf); 2992 2993 return err; 2994 } 2995 2996 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2997 { 2998 int pipe, err, size = sizeof(u32); 2999 void *buf; 3000 3001 buf = kzalloc(size, GFP_KERNEL); 3002 if (!buf) 3003 return -ENOMEM; 3004 3005 pipe = usb_rcvctrlpipe(data->udev, 0); 3006 err = usb_control_msg(data->udev, pipe, 0x63, 3007 USB_TYPE_VENDOR | USB_DIR_IN, 3008 reg >> 16, reg & 0xffff, 3009 buf, size, USB_CTRL_GET_TIMEOUT); 3010 if (err < 0) 3011 goto err_free_buf; 3012 3013 *val = get_unaligned_le32(buf); 3014 3015 err_free_buf: 3016 kfree(buf); 3017 3018 return err; 3019 } 3020 3021 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) 3022 { 3023 return btusb_mtk_reg_read(data, reg, id); 3024 } 3025 3026 static u32 btusb_mtk_reset_done(struct hci_dev *hdev) 3027 { 3028 struct btusb_data *data = hci_get_drvdata(hdev); 3029 u32 val = 0; 3030 3031 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); 3032 3033 return val & MTK_BT_RST_DONE; 3034 } 3035 3036 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 3037 { 3038 struct btusb_data *data = hci_get_drvdata(hdev); 3039 struct btmediatek_data *mediatek; 3040 u32 val; 3041 int err; 3042 3043 /* It's MediaTek specific bluetooth reset mechanism via USB */ 3044 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 3045 bt_dev_err(hdev, "last reset failed? Not resetting again"); 3046 return -EBUSY; 3047 } 3048 3049 err = usb_autopm_get_interface(data->intf); 3050 if (err < 0) 3051 return err; 3052 3053 btusb_stop_traffic(data); 3054 usb_kill_anchored_urbs(&data->tx_anchor); 3055 mediatek = hci_get_priv(hdev); 3056 3057 if (mediatek->dev_id == 0x7925) { 3058 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3059 val |= (1 << 5); 3060 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3061 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3062 val &= 0xFFFF00FF; 3063 val |= (1 << 13); 3064 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3065 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); 3066 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3067 val |= (1 << 0); 3068 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3069 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3070 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3071 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3072 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3073 msleep(100); 3074 } else { 3075 /* It's Device EndPoint Reset Option Register */ 3076 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); 3077 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3078 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); 3079 3080 /* Reset the bluetooth chip via USB interface. */ 3081 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); 3082 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3083 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3084 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3085 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3086 /* MT7921 need to delay 20ms between toggle reset bit */ 3087 msleep(20); 3088 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); 3089 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); 3090 } 3091 3092 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val, 3093 val & MTK_BT_RST_DONE, 20000, 1000000); 3094 if (err < 0) 3095 bt_dev_err(hdev, "Reset timeout"); 3096 3097 btusb_mtk_id_get(data, 0x70010200, &val); 3098 if (!val) 3099 bt_dev_err(hdev, "Can't get device id, subsys reset fail."); 3100 3101 usb_queue_reset_device(data->intf); 3102 3103 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); 3104 3105 return err; 3106 } 3107 3108 static int btusb_mtk_setup(struct hci_dev *hdev) 3109 { 3110 struct btusb_data *data = hci_get_drvdata(hdev); 3111 struct btmtk_hci_wmt_params wmt_params; 3112 ktime_t calltime, delta, rettime; 3113 struct btmtk_tci_sleep tci_sleep; 3114 unsigned long long duration; 3115 struct sk_buff *skb; 3116 const char *fwname; 3117 int err, status; 3118 u32 dev_id = 0; 3119 char fw_bin_name[64]; 3120 u32 fw_version = 0, fw_flavor = 0; 3121 u8 param; 3122 struct btmediatek_data *mediatek; 3123 3124 calltime = ktime_get(); 3125 3126 err = btusb_mtk_id_get(data, 0x80000008, &dev_id); 3127 if (err < 0) { 3128 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3129 return err; 3130 } 3131 3132 if (!dev_id || dev_id != 0x7663) { 3133 err = btusb_mtk_id_get(data, 0x70010200, &dev_id); 3134 if (err < 0) { 3135 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3136 return err; 3137 } 3138 err = btusb_mtk_id_get(data, 0x80021004, &fw_version); 3139 if (err < 0) { 3140 bt_dev_err(hdev, "Failed to get fw version (%d)", err); 3141 return err; 3142 } 3143 err = btusb_mtk_id_get(data, 0x70010020, &fw_flavor); 3144 if (err < 0) { 3145 bt_dev_err(hdev, "Failed to get fw flavor (%d)", err); 3146 return err; 3147 } 3148 fw_flavor = (fw_flavor & 0x00000080) >> 7; 3149 } 3150 3151 mediatek = hci_get_priv(hdev); 3152 mediatek->dev_id = dev_id; 3153 mediatek->reset_sync = btusb_mtk_reset; 3154 3155 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version); 3156 if (err < 0) 3157 bt_dev_err(hdev, "Failed to register coredump (%d)", err); 3158 3159 switch (dev_id) { 3160 case 0x7663: 3161 fwname = FIRMWARE_MT7663; 3162 break; 3163 case 0x7668: 3164 fwname = FIRMWARE_MT7668; 3165 break; 3166 case 0x7922: 3167 case 0x7961: 3168 case 0x7925: 3169 if (dev_id == 0x7925) 3170 snprintf(fw_bin_name, sizeof(fw_bin_name), 3171 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3172 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1); 3173 else if (dev_id == 0x7961 && fw_flavor) 3174 snprintf(fw_bin_name, sizeof(fw_bin_name), 3175 "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin", 3176 dev_id & 0xffff, (fw_version & 0xff) + 1); 3177 else 3178 snprintf(fw_bin_name, sizeof(fw_bin_name), 3179 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3180 dev_id & 0xffff, (fw_version & 0xff) + 1); 3181 3182 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name, 3183 btusb_mtk_hci_wmt_sync); 3184 if (err < 0) { 3185 bt_dev_err(hdev, "Failed to set up firmware (%d)", err); 3186 return err; 3187 } 3188 3189 /* It's Device EndPoint Reset Option Register */ 3190 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3191 3192 /* Enable Bluetooth protocol */ 3193 param = 1; 3194 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3195 wmt_params.flag = 0; 3196 wmt_params.dlen = sizeof(param); 3197 wmt_params.data = ¶m; 3198 wmt_params.status = NULL; 3199 3200 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3201 if (err < 0) { 3202 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3203 return err; 3204 } 3205 3206 hci_set_msft_opcode(hdev, 0xFD30); 3207 hci_set_aosp_capable(hdev); 3208 goto done; 3209 default: 3210 bt_dev_err(hdev, "Unsupported hardware variant (%08x)", 3211 dev_id); 3212 return -ENODEV; 3213 } 3214 3215 /* Query whether the firmware is already download */ 3216 wmt_params.op = BTMTK_WMT_SEMAPHORE; 3217 wmt_params.flag = 1; 3218 wmt_params.dlen = 0; 3219 wmt_params.data = NULL; 3220 wmt_params.status = &status; 3221 3222 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3223 if (err < 0) { 3224 bt_dev_err(hdev, "Failed to query firmware status (%d)", err); 3225 return err; 3226 } 3227 3228 if (status == BTMTK_WMT_PATCH_DONE) { 3229 bt_dev_info(hdev, "firmware already downloaded"); 3230 goto ignore_setup_fw; 3231 } 3232 3233 /* Setup a firmware which the device definitely requires */ 3234 err = btmtk_setup_firmware(hdev, fwname, 3235 btusb_mtk_hci_wmt_sync); 3236 if (err < 0) 3237 return err; 3238 3239 ignore_setup_fw: 3240 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, 3241 status < 0 || status != BTMTK_WMT_ON_PROGRESS, 3242 2000, 5000000); 3243 /* -ETIMEDOUT happens */ 3244 if (err < 0) 3245 return err; 3246 3247 /* The other errors happen in btusb_mtk_func_query */ 3248 if (status < 0) 3249 return status; 3250 3251 if (status == BTMTK_WMT_ON_DONE) { 3252 bt_dev_info(hdev, "function already on"); 3253 goto ignore_func_on; 3254 } 3255 3256 /* Enable Bluetooth protocol */ 3257 param = 1; 3258 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3259 wmt_params.flag = 0; 3260 wmt_params.dlen = sizeof(param); 3261 wmt_params.data = ¶m; 3262 wmt_params.status = NULL; 3263 3264 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3265 if (err < 0) { 3266 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3267 return err; 3268 } 3269 3270 ignore_func_on: 3271 /* Apply the low power environment setup */ 3272 tci_sleep.mode = 0x5; 3273 tci_sleep.duration = cpu_to_le16(0x640); 3274 tci_sleep.host_duration = cpu_to_le16(0x640); 3275 tci_sleep.host_wakeup_pin = 0; 3276 tci_sleep.time_compensation = 0; 3277 3278 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, 3279 HCI_INIT_TIMEOUT); 3280 if (IS_ERR(skb)) { 3281 err = PTR_ERR(skb); 3282 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); 3283 return err; 3284 } 3285 kfree_skb(skb); 3286 3287 done: 3288 rettime = ktime_get(); 3289 delta = ktime_sub(rettime, calltime); 3290 duration = (unsigned long long)ktime_to_ns(delta) >> 10; 3291 3292 bt_dev_info(hdev, "Device setup in %llu usecs", duration); 3293 3294 return 0; 3295 } 3296 3297 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3298 { 3299 struct btmtk_hci_wmt_params wmt_params; 3300 u8 param = 0; 3301 int err; 3302 3303 /* Disable the device */ 3304 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3305 wmt_params.flag = 0; 3306 wmt_params.dlen = sizeof(param); 3307 wmt_params.data = ¶m; 3308 wmt_params.status = NULL; 3309 3310 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3311 if (err < 0) { 3312 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3313 return err; 3314 } 3315 3316 return 0; 3317 } 3318 3319 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3320 { 3321 struct btusb_data *data = hci_get_drvdata(hdev); 3322 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); 3323 3324 switch (handle) { 3325 case 0xfc6f: /* Firmware dump from device */ 3326 /* When the firmware hangs, the device can no longer 3327 * suspend and thus disable auto-suspend. 3328 */ 3329 usb_disable_autosuspend(data->udev); 3330 3331 /* We need to forward the diagnostic packet to userspace daemon 3332 * for backward compatibility, so we have to clone the packet 3333 * extraly for the in-kernel coredump support. 3334 */ 3335 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) { 3336 struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC); 3337 3338 if (skb_cd) 3339 btmtk_process_coredump(hdev, skb_cd); 3340 } 3341 3342 fallthrough; 3343 case 0x05ff: /* Firmware debug logging 1 */ 3344 case 0x05fe: /* Firmware debug logging 2 */ 3345 return hci_recv_diag(hdev, skb); 3346 } 3347 3348 return hci_recv_frame(hdev, skb); 3349 } 3350 3351 #ifdef CONFIG_PM 3352 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3353 static int marvell_config_oob_wake(struct hci_dev *hdev) 3354 { 3355 struct sk_buff *skb; 3356 struct btusb_data *data = hci_get_drvdata(hdev); 3357 struct device *dev = &data->udev->dev; 3358 u16 pin, gap, opcode; 3359 int ret; 3360 u8 cmd[5]; 3361 3362 /* Move on if no wakeup pin specified */ 3363 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3364 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3365 return 0; 3366 3367 /* Vendor specific command to configure a GPIO as wake-up pin */ 3368 opcode = hci_opcode_pack(0x3F, 0x59); 3369 cmd[0] = opcode & 0xFF; 3370 cmd[1] = opcode >> 8; 3371 cmd[2] = 2; /* length of parameters that follow */ 3372 cmd[3] = pin; 3373 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3374 3375 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3376 if (!skb) { 3377 bt_dev_err(hdev, "%s: No memory", __func__); 3378 return -ENOMEM; 3379 } 3380 3381 skb_put_data(skb, cmd, sizeof(cmd)); 3382 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3383 3384 ret = btusb_send_frame(hdev, skb); 3385 if (ret) { 3386 bt_dev_err(hdev, "%s: configuration failed", __func__); 3387 kfree_skb(skb); 3388 return ret; 3389 } 3390 3391 return 0; 3392 } 3393 #endif 3394 3395 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3396 const bdaddr_t *bdaddr) 3397 { 3398 struct sk_buff *skb; 3399 u8 buf[8]; 3400 long ret; 3401 3402 buf[0] = 0xfe; 3403 buf[1] = sizeof(bdaddr_t); 3404 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3405 3406 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3407 if (IS_ERR(skb)) { 3408 ret = PTR_ERR(skb); 3409 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3410 ret); 3411 return ret; 3412 } 3413 kfree_skb(skb); 3414 3415 return 0; 3416 } 3417 3418 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3419 const bdaddr_t *bdaddr) 3420 { 3421 struct sk_buff *skb; 3422 u8 buf[10]; 3423 long ret; 3424 3425 buf[0] = 0x01; 3426 buf[1] = 0x01; 3427 buf[2] = 0x00; 3428 buf[3] = sizeof(bdaddr_t); 3429 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3430 3431 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3432 if (IS_ERR(skb)) { 3433 ret = PTR_ERR(skb); 3434 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3435 return ret; 3436 } 3437 kfree_skb(skb); 3438 3439 return 0; 3440 } 3441 3442 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3443 const bdaddr_t *bdaddr) 3444 { 3445 struct sk_buff *skb; 3446 u8 buf[6]; 3447 long ret; 3448 3449 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3450 3451 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3452 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3453 if (IS_ERR(skb)) { 3454 ret = PTR_ERR(skb); 3455 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3456 return ret; 3457 } 3458 kfree_skb(skb); 3459 3460 return 0; 3461 } 3462 3463 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3464 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3465 #define QCA_MEMDUMP_VSE_CLASS 0x01 3466 #define QCA_MEMDUMP_MSG_TYPE 0x08 3467 #define QCA_MEMDUMP_PKT_SIZE 248 3468 #define QCA_LAST_SEQUENCE_NUM 0xffff 3469 3470 struct qca_dump_hdr { 3471 u8 vse_class; 3472 u8 msg_type; 3473 __le16 seqno; 3474 u8 reserved; 3475 union { 3476 u8 data[0]; 3477 struct { 3478 __le32 ram_dump_size; 3479 u8 data0[0]; 3480 } __packed; 3481 }; 3482 } __packed; 3483 3484 3485 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3486 { 3487 char buf[128]; 3488 struct btusb_data *btdata = hci_get_drvdata(hdev); 3489 3490 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3491 btdata->qca_dump.controller_id); 3492 skb_put_data(skb, buf, strlen(buf)); 3493 3494 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3495 btdata->qca_dump.fw_version); 3496 skb_put_data(skb, buf, strlen(buf)); 3497 3498 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3499 btusb_driver.name); 3500 skb_put_data(skb, buf, strlen(buf)); 3501 3502 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3503 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3504 skb_put_data(skb, buf, strlen(buf)); 3505 3506 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3507 hdev->lmp_subver); 3508 skb_put_data(skb, buf, strlen(buf)); 3509 } 3510 3511 static void btusb_coredump_qca(struct hci_dev *hdev) 3512 { 3513 int err; 3514 static const u8 param[] = { 0x26 }; 3515 3516 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3517 if (err < 0) 3518 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3519 } 3520 3521 /* 3522 * ==0: not a dump pkt. 3523 * < 0: fails to handle a dump pkt 3524 * > 0: otherwise. 3525 */ 3526 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3527 { 3528 int ret = 1; 3529 u8 pkt_type; 3530 u8 *sk_ptr; 3531 unsigned int sk_len; 3532 u16 seqno; 3533 u32 dump_size; 3534 3535 struct hci_event_hdr *event_hdr; 3536 struct hci_acl_hdr *acl_hdr; 3537 struct qca_dump_hdr *dump_hdr; 3538 struct btusb_data *btdata = hci_get_drvdata(hdev); 3539 struct usb_device *udev = btdata->udev; 3540 3541 pkt_type = hci_skb_pkt_type(skb); 3542 sk_ptr = skb->data; 3543 sk_len = skb->len; 3544 3545 if (pkt_type == HCI_ACLDATA_PKT) { 3546 acl_hdr = hci_acl_hdr(skb); 3547 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3548 return 0; 3549 sk_ptr += HCI_ACL_HDR_SIZE; 3550 sk_len -= HCI_ACL_HDR_SIZE; 3551 event_hdr = (struct hci_event_hdr *)sk_ptr; 3552 } else { 3553 event_hdr = hci_event_hdr(skb); 3554 } 3555 3556 if ((event_hdr->evt != HCI_VENDOR_PKT) 3557 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3558 return 0; 3559 3560 sk_ptr += HCI_EVENT_HDR_SIZE; 3561 sk_len -= HCI_EVENT_HDR_SIZE; 3562 3563 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3564 if ((sk_len < offsetof(struct qca_dump_hdr, data)) 3565 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) 3566 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3567 return 0; 3568 3569 /*it is dump pkt now*/ 3570 seqno = le16_to_cpu(dump_hdr->seqno); 3571 if (seqno == 0) { 3572 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3573 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3574 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3575 ret = -EILSEQ; 3576 bt_dev_err(hdev, "Invalid memdump size(%u)", 3577 dump_size); 3578 goto out; 3579 } 3580 3581 ret = hci_devcd_init(hdev, dump_size); 3582 if (ret < 0) { 3583 bt_dev_err(hdev, "memdump init error(%d)", ret); 3584 goto out; 3585 } 3586 3587 btdata->qca_dump.ram_dump_size = dump_size; 3588 btdata->qca_dump.ram_dump_seqno = 0; 3589 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3590 sk_len -= offsetof(struct qca_dump_hdr, data0); 3591 3592 usb_disable_autosuspend(udev); 3593 bt_dev_info(hdev, "%s memdump size(%u)\n", 3594 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3595 dump_size); 3596 } else { 3597 sk_ptr += offsetof(struct qca_dump_hdr, data); 3598 sk_len -= offsetof(struct qca_dump_hdr, data); 3599 } 3600 3601 if (!btdata->qca_dump.ram_dump_size) { 3602 ret = -EINVAL; 3603 bt_dev_err(hdev, "memdump is not active"); 3604 goto out; 3605 } 3606 3607 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3608 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3609 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3610 bt_dev_err(hdev, 3611 "expected memdump seqno(%u) is not received(%u)\n", 3612 btdata->qca_dump.ram_dump_seqno, seqno); 3613 btdata->qca_dump.ram_dump_seqno = seqno; 3614 kfree_skb(skb); 3615 return ret; 3616 } 3617 3618 skb_pull(skb, skb->len - sk_len); 3619 hci_devcd_append(hdev, skb); 3620 btdata->qca_dump.ram_dump_seqno++; 3621 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3622 bt_dev_info(hdev, 3623 "memdump done: pkts(%u), total(%u)\n", 3624 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3625 3626 hci_devcd_complete(hdev); 3627 goto out; 3628 } 3629 return ret; 3630 3631 out: 3632 if (btdata->qca_dump.ram_dump_size) 3633 usb_enable_autosuspend(udev); 3634 btdata->qca_dump.ram_dump_size = 0; 3635 btdata->qca_dump.ram_dump_seqno = 0; 3636 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3637 3638 if (ret < 0) 3639 kfree_skb(skb); 3640 return ret; 3641 } 3642 3643 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3644 { 3645 if (handle_dump_pkt_qca(hdev, skb)) 3646 return 0; 3647 return hci_recv_frame(hdev, skb); 3648 } 3649 3650 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3651 { 3652 if (handle_dump_pkt_qca(hdev, skb)) 3653 return 0; 3654 return hci_recv_frame(hdev, skb); 3655 } 3656 3657 3658 #define QCA_DFU_PACKET_LEN 4096 3659 3660 #define QCA_GET_TARGET_VERSION 0x09 3661 #define QCA_CHECK_STATUS 0x05 3662 #define QCA_DFU_DOWNLOAD 0x01 3663 3664 #define QCA_SYSCFG_UPDATED 0x40 3665 #define QCA_PATCH_UPDATED 0x80 3666 #define QCA_DFU_TIMEOUT 3000 3667 #define QCA_FLAG_MULTI_NVM 0x80 3668 #define QCA_BT_RESET_WAIT_MS 100 3669 3670 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3671 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3672 3673 struct qca_version { 3674 __le32 rom_version; 3675 __le32 patch_version; 3676 __le32 ram_version; 3677 __u8 chip_id; 3678 __u8 platform_id; 3679 __le16 flag; 3680 __u8 reserved[4]; 3681 } __packed; 3682 3683 struct qca_rampatch_version { 3684 __le16 rom_version_high; 3685 __le16 rom_version_low; 3686 __le16 patch_version; 3687 } __packed; 3688 3689 struct qca_device_info { 3690 u32 rom_version; 3691 u8 rampatch_hdr; /* length of header in rampatch */ 3692 u8 nvm_hdr; /* length of header in NVM */ 3693 u8 ver_offset; /* offset of version structure in rampatch */ 3694 }; 3695 3696 static const struct qca_device_info qca_devices_table[] = { 3697 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3698 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3699 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3700 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3701 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3702 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3703 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3704 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3705 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3706 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3707 }; 3708 3709 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3710 void *data, u16 size) 3711 { 3712 int pipe, err; 3713 u8 *buf; 3714 3715 buf = kmalloc(size, GFP_KERNEL); 3716 if (!buf) 3717 return -ENOMEM; 3718 3719 /* Found some of USB hosts have IOT issues with ours so that we should 3720 * not wait until HCI layer is ready. 3721 */ 3722 pipe = usb_rcvctrlpipe(udev, 0); 3723 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3724 0, 0, buf, size, USB_CTRL_GET_TIMEOUT); 3725 if (err < 0) { 3726 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3727 goto done; 3728 } 3729 3730 memcpy(data, buf, size); 3731 3732 done: 3733 kfree(buf); 3734 3735 return err; 3736 } 3737 3738 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3739 const struct firmware *firmware, 3740 size_t hdr_size) 3741 { 3742 struct btusb_data *btdata = hci_get_drvdata(hdev); 3743 struct usb_device *udev = btdata->udev; 3744 size_t count, size, sent = 0; 3745 int pipe, len, err; 3746 u8 *buf; 3747 3748 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3749 if (!buf) 3750 return -ENOMEM; 3751 3752 count = firmware->size; 3753 3754 size = min_t(size_t, count, hdr_size); 3755 memcpy(buf, firmware->data, size); 3756 3757 /* USB patches should go down to controller through USB path 3758 * because binary format fits to go down through USB channel. 3759 * USB control path is for patching headers and USB bulk is for 3760 * patch body. 3761 */ 3762 pipe = usb_sndctrlpipe(udev, 0); 3763 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3764 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3765 if (err < 0) { 3766 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3767 goto done; 3768 } 3769 3770 sent += size; 3771 count -= size; 3772 3773 /* ep2 need time to switch from function acl to function dfu, 3774 * so we add 20ms delay here. 3775 */ 3776 msleep(20); 3777 3778 while (count) { 3779 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3780 3781 memcpy(buf, firmware->data + sent, size); 3782 3783 pipe = usb_sndbulkpipe(udev, 0x02); 3784 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3785 QCA_DFU_TIMEOUT); 3786 if (err < 0) { 3787 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3788 sent, firmware->size, err); 3789 break; 3790 } 3791 3792 if (size != len) { 3793 bt_dev_err(hdev, "Failed to get bulk buffer"); 3794 err = -EILSEQ; 3795 break; 3796 } 3797 3798 sent += size; 3799 count -= size; 3800 } 3801 3802 done: 3803 kfree(buf); 3804 return err; 3805 } 3806 3807 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3808 struct qca_version *ver, 3809 const struct qca_device_info *info) 3810 { 3811 struct qca_rampatch_version *rver; 3812 const struct firmware *fw; 3813 u32 ver_rom, ver_patch, rver_rom; 3814 u16 rver_rom_low, rver_rom_high, rver_patch; 3815 char fwname[64]; 3816 int err; 3817 3818 ver_rom = le32_to_cpu(ver->rom_version); 3819 ver_patch = le32_to_cpu(ver->patch_version); 3820 3821 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3822 3823 err = request_firmware(&fw, fwname, &hdev->dev); 3824 if (err) { 3825 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3826 fwname, err); 3827 return err; 3828 } 3829 3830 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3831 3832 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3833 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3834 rver_patch = le16_to_cpu(rver->patch_version); 3835 3836 if (ver_rom & ~0xffffU) { 3837 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3838 rver_rom = rver_rom_high << 16 | rver_rom_low; 3839 } else { 3840 rver_rom = rver_rom_low; 3841 } 3842 3843 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3844 "firmware rome 0x%x build 0x%x", 3845 rver_rom, rver_patch, ver_rom, ver_patch); 3846 3847 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3848 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3849 err = -EINVAL; 3850 goto done; 3851 } 3852 3853 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3854 3855 done: 3856 release_firmware(fw); 3857 3858 return err; 3859 } 3860 3861 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3862 const struct qca_version *ver) 3863 { 3864 u32 rom_version = le32_to_cpu(ver->rom_version); 3865 u16 flag = le16_to_cpu(ver->flag); 3866 3867 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3868 /* The board_id should be split into two bytes 3869 * The 1st byte is chip ID, and the 2nd byte is platform ID 3870 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3871 * we have several platforms, and platform IDs are continuously added 3872 * Platform ID: 3873 * 0x00 is for Mobile 3874 * 0x01 is for X86 3875 * 0x02 is for Automotive 3876 * 0x03 is for Consumer electronic 3877 */ 3878 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3879 const char *variant; 3880 3881 switch (le32_to_cpu(ver->ram_version)) { 3882 case WCN6855_2_0_RAM_VERSION_GF: 3883 case WCN6855_2_1_RAM_VERSION_GF: 3884 variant = "_gf"; 3885 break; 3886 default: 3887 variant = ""; 3888 break; 3889 } 3890 3891 if (board_id == 0) { 3892 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3893 rom_version, variant); 3894 } else { 3895 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3896 rom_version, variant, board_id); 3897 } 3898 } else { 3899 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3900 rom_version); 3901 } 3902 3903 } 3904 3905 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3906 struct qca_version *ver, 3907 const struct qca_device_info *info) 3908 { 3909 const struct firmware *fw; 3910 char fwname[64]; 3911 int err; 3912 3913 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3914 3915 err = request_firmware(&fw, fwname, &hdev->dev); 3916 if (err) { 3917 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3918 fwname, err); 3919 return err; 3920 } 3921 3922 bt_dev_info(hdev, "using NVM file: %s", fwname); 3923 3924 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3925 3926 release_firmware(fw); 3927 3928 return err; 3929 } 3930 3931 /* identify the ROM version and check whether patches are needed */ 3932 static bool btusb_qca_need_patch(struct usb_device *udev) 3933 { 3934 struct qca_version ver; 3935 3936 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3937 sizeof(ver)) < 0) 3938 return false; 3939 /* only low ROM versions need patches */ 3940 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3941 } 3942 3943 static int btusb_setup_qca(struct hci_dev *hdev) 3944 { 3945 struct btusb_data *btdata = hci_get_drvdata(hdev); 3946 struct usb_device *udev = btdata->udev; 3947 const struct qca_device_info *info = NULL; 3948 struct qca_version ver; 3949 u32 ver_rom; 3950 u8 status; 3951 int i, err; 3952 3953 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3954 sizeof(ver)); 3955 if (err < 0) 3956 return err; 3957 3958 ver_rom = le32_to_cpu(ver.rom_version); 3959 3960 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3961 if (ver_rom == qca_devices_table[i].rom_version) 3962 info = &qca_devices_table[i]; 3963 } 3964 if (!info) { 3965 /* If the rom_version is not matched in the qca_devices_table 3966 * and the high ROM version is not zero, we assume this chip no 3967 * need to load the rampatch and nvm. 3968 */ 3969 if (ver_rom & ~0xffffU) 3970 return 0; 3971 3972 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3973 return -ENODEV; 3974 } 3975 3976 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3977 sizeof(status)); 3978 if (err < 0) 3979 return err; 3980 3981 if (!(status & QCA_PATCH_UPDATED)) { 3982 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3983 if (err < 0) 3984 return err; 3985 } 3986 3987 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3988 sizeof(ver)); 3989 if (err < 0) 3990 return err; 3991 3992 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3993 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3994 3995 if (!(status & QCA_SYSCFG_UPDATED)) { 3996 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3997 if (err < 0) 3998 return err; 3999 4000 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 4001 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 4002 * cause potential enable failure. 4003 */ 4004 if (info->rom_version >= 0x00130201) 4005 msleep(QCA_BT_RESET_WAIT_MS); 4006 } 4007 4008 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 4009 * work with the likes of HSP/HFP mSBC. 4010 */ 4011 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4012 4013 return 0; 4014 } 4015 4016 static inline int __set_diag_interface(struct hci_dev *hdev) 4017 { 4018 struct btusb_data *data = hci_get_drvdata(hdev); 4019 struct usb_interface *intf = data->diag; 4020 int i; 4021 4022 if (!data->diag) 4023 return -ENODEV; 4024 4025 data->diag_tx_ep = NULL; 4026 data->diag_rx_ep = NULL; 4027 4028 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4029 struct usb_endpoint_descriptor *ep_desc; 4030 4031 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4032 4033 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4034 data->diag_tx_ep = ep_desc; 4035 continue; 4036 } 4037 4038 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4039 data->diag_rx_ep = ep_desc; 4040 continue; 4041 } 4042 } 4043 4044 if (!data->diag_tx_ep || !data->diag_rx_ep) { 4045 bt_dev_err(hdev, "invalid diagnostic descriptors"); 4046 return -ENODEV; 4047 } 4048 4049 return 0; 4050 } 4051 4052 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 4053 { 4054 struct btusb_data *data = hci_get_drvdata(hdev); 4055 struct sk_buff *skb; 4056 struct urb *urb; 4057 unsigned int pipe; 4058 4059 if (!data->diag_tx_ep) 4060 return ERR_PTR(-ENODEV); 4061 4062 urb = usb_alloc_urb(0, GFP_KERNEL); 4063 if (!urb) 4064 return ERR_PTR(-ENOMEM); 4065 4066 skb = bt_skb_alloc(2, GFP_KERNEL); 4067 if (!skb) { 4068 usb_free_urb(urb); 4069 return ERR_PTR(-ENOMEM); 4070 } 4071 4072 skb_put_u8(skb, 0xf0); 4073 skb_put_u8(skb, enable); 4074 4075 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 4076 4077 usb_fill_bulk_urb(urb, data->udev, pipe, 4078 skb->data, skb->len, btusb_tx_complete, skb); 4079 4080 skb->dev = (void *)hdev; 4081 4082 return urb; 4083 } 4084 4085 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 4086 { 4087 struct btusb_data *data = hci_get_drvdata(hdev); 4088 struct urb *urb; 4089 4090 if (!data->diag) 4091 return -ENODEV; 4092 4093 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4094 return -ENETDOWN; 4095 4096 urb = alloc_diag_urb(hdev, enable); 4097 if (IS_ERR(urb)) 4098 return PTR_ERR(urb); 4099 4100 return submit_or_queue_tx_urb(hdev, urb); 4101 } 4102 4103 #ifdef CONFIG_PM 4104 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 4105 { 4106 struct btusb_data *data = priv; 4107 4108 pm_wakeup_event(&data->udev->dev, 0); 4109 pm_system_wakeup(); 4110 4111 /* Disable only if not already disabled (keep it balanced) */ 4112 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4113 disable_irq_nosync(irq); 4114 disable_irq_wake(irq); 4115 } 4116 return IRQ_HANDLED; 4117 } 4118 4119 static const struct of_device_id btusb_match_table[] = { 4120 { .compatible = "usb1286,204e" }, 4121 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 4122 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 4123 { } 4124 }; 4125 MODULE_DEVICE_TABLE(of, btusb_match_table); 4126 4127 /* Use an oob wakeup pin? */ 4128 static int btusb_config_oob_wake(struct hci_dev *hdev) 4129 { 4130 struct btusb_data *data = hci_get_drvdata(hdev); 4131 struct device *dev = &data->udev->dev; 4132 int irq, ret; 4133 4134 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4135 4136 if (!of_match_device(btusb_match_table, dev)) 4137 return 0; 4138 4139 /* Move on if no IRQ specified */ 4140 irq = of_irq_get_byname(dev->of_node, "wakeup"); 4141 if (irq <= 0) { 4142 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 4143 return 0; 4144 } 4145 4146 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4147 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 4148 0, "OOB Wake-on-BT", data); 4149 if (ret) { 4150 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4151 return ret; 4152 } 4153 4154 ret = device_init_wakeup(dev, true); 4155 if (ret) { 4156 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4157 return ret; 4158 } 4159 4160 data->oob_wake_irq = irq; 4161 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4162 return 0; 4163 } 4164 #endif 4165 4166 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4167 { 4168 if (dmi_check_system(btusb_needs_reset_resume_table)) 4169 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4170 } 4171 4172 static bool btusb_wakeup(struct hci_dev *hdev) 4173 { 4174 struct btusb_data *data = hci_get_drvdata(hdev); 4175 4176 return device_may_wakeup(&data->udev->dev); 4177 } 4178 4179 static int btusb_shutdown_qca(struct hci_dev *hdev) 4180 { 4181 struct sk_buff *skb; 4182 4183 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 4184 if (IS_ERR(skb)) { 4185 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4186 return PTR_ERR(skb); 4187 } 4188 kfree_skb(skb); 4189 4190 return 0; 4191 } 4192 4193 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4194 size_t count, loff_t *ppos) 4195 { 4196 struct btusb_data *data = file->private_data; 4197 char buf[3]; 4198 4199 buf[0] = data->poll_sync ? 'Y' : 'N'; 4200 buf[1] = '\n'; 4201 buf[2] = '\0'; 4202 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4203 } 4204 4205 static ssize_t force_poll_sync_write(struct file *file, 4206 const char __user *user_buf, 4207 size_t count, loff_t *ppos) 4208 { 4209 struct btusb_data *data = file->private_data; 4210 bool enable; 4211 int err; 4212 4213 err = kstrtobool_from_user(user_buf, count, &enable); 4214 if (err) 4215 return err; 4216 4217 /* Only allow changes while the adapter is down */ 4218 if (test_bit(HCI_UP, &data->hdev->flags)) 4219 return -EPERM; 4220 4221 if (data->poll_sync == enable) 4222 return -EALREADY; 4223 4224 data->poll_sync = enable; 4225 4226 return count; 4227 } 4228 4229 static const struct file_operations force_poll_sync_fops = { 4230 .open = simple_open, 4231 .read = force_poll_sync_read, 4232 .write = force_poll_sync_write, 4233 .llseek = default_llseek, 4234 }; 4235 4236 static int btusb_probe(struct usb_interface *intf, 4237 const struct usb_device_id *id) 4238 { 4239 struct usb_endpoint_descriptor *ep_desc; 4240 struct gpio_desc *reset_gpio; 4241 struct btusb_data *data; 4242 struct hci_dev *hdev; 4243 unsigned ifnum_base; 4244 int i, err, priv_size; 4245 4246 BT_DBG("intf %p id %p", intf, id); 4247 4248 if ((id->driver_info & BTUSB_IFNUM_2) && 4249 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4250 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4251 return -ENODEV; 4252 4253 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4254 4255 if (!id->driver_info) { 4256 const struct usb_device_id *match; 4257 4258 match = usb_match_id(intf, quirks_table); 4259 if (match) 4260 id = match; 4261 } 4262 4263 if (id->driver_info == BTUSB_IGNORE) 4264 return -ENODEV; 4265 4266 if (id->driver_info & BTUSB_ATH3012) { 4267 struct usb_device *udev = interface_to_usbdev(intf); 4268 4269 /* Old firmware would otherwise let ath3k driver load 4270 * patch and sysconfig files 4271 */ 4272 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4273 !btusb_qca_need_patch(udev)) 4274 return -ENODEV; 4275 } 4276 4277 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 4278 if (!data) 4279 return -ENOMEM; 4280 4281 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4282 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4283 4284 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 4285 data->intr_ep = ep_desc; 4286 continue; 4287 } 4288 4289 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4290 data->bulk_tx_ep = ep_desc; 4291 continue; 4292 } 4293 4294 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4295 data->bulk_rx_ep = ep_desc; 4296 continue; 4297 } 4298 } 4299 4300 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 4301 return -ENODEV; 4302 4303 if (id->driver_info & BTUSB_AMP) { 4304 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4305 data->cmdreq = 0x2b; 4306 } else { 4307 data->cmdreq_type = USB_TYPE_CLASS; 4308 data->cmdreq = 0x00; 4309 } 4310 4311 data->udev = interface_to_usbdev(intf); 4312 data->intf = intf; 4313 4314 INIT_WORK(&data->work, btusb_work); 4315 INIT_WORK(&data->waker, btusb_waker); 4316 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4317 4318 skb_queue_head_init(&data->acl_q); 4319 4320 init_usb_anchor(&data->deferred); 4321 init_usb_anchor(&data->tx_anchor); 4322 spin_lock_init(&data->txlock); 4323 4324 init_usb_anchor(&data->intr_anchor); 4325 init_usb_anchor(&data->bulk_anchor); 4326 init_usb_anchor(&data->isoc_anchor); 4327 init_usb_anchor(&data->diag_anchor); 4328 init_usb_anchor(&data->ctrl_anchor); 4329 spin_lock_init(&data->rxlock); 4330 4331 priv_size = 0; 4332 4333 data->recv_event = hci_recv_frame; 4334 data->recv_bulk = btusb_recv_bulk; 4335 4336 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4337 /* Allocate extra space for Intel device */ 4338 priv_size += sizeof(struct btintel_data); 4339 4340 /* Override the rx handlers */ 4341 data->recv_event = btintel_recv_event; 4342 data->recv_bulk = btusb_recv_bulk_intel; 4343 } else if (id->driver_info & BTUSB_REALTEK) { 4344 /* Allocate extra space for Realtek device */ 4345 priv_size += sizeof(struct btrealtek_data); 4346 4347 data->recv_event = btusb_recv_event_realtek; 4348 } else if (id->driver_info & BTUSB_MEDIATEK) { 4349 /* Allocate extra space for Mediatek device */ 4350 priv_size += sizeof(struct btmediatek_data); 4351 } 4352 4353 data->recv_acl = hci_recv_frame; 4354 4355 hdev = hci_alloc_dev_priv(priv_size); 4356 if (!hdev) 4357 return -ENOMEM; 4358 4359 hdev->bus = HCI_USB; 4360 hci_set_drvdata(hdev, data); 4361 4362 data->hdev = hdev; 4363 4364 SET_HCIDEV_DEV(hdev, &intf->dev); 4365 4366 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4367 GPIOD_OUT_LOW); 4368 if (IS_ERR(reset_gpio)) { 4369 err = PTR_ERR(reset_gpio); 4370 goto out_free_dev; 4371 } else if (reset_gpio) { 4372 data->reset_gpio = reset_gpio; 4373 } 4374 4375 hdev->open = btusb_open; 4376 hdev->close = btusb_close; 4377 hdev->flush = btusb_flush; 4378 hdev->send = btusb_send_frame; 4379 hdev->notify = btusb_notify; 4380 hdev->wakeup = btusb_wakeup; 4381 4382 #ifdef CONFIG_PM 4383 err = btusb_config_oob_wake(hdev); 4384 if (err) 4385 goto out_free_dev; 4386 4387 /* Marvell devices may need a specific chip configuration */ 4388 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4389 err = marvell_config_oob_wake(hdev); 4390 if (err) 4391 goto out_free_dev; 4392 } 4393 #endif 4394 if (id->driver_info & BTUSB_CW6622) 4395 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4396 4397 if (id->driver_info & BTUSB_BCM2045) 4398 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4399 4400 if (id->driver_info & BTUSB_BCM92035) 4401 hdev->setup = btusb_setup_bcm92035; 4402 4403 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4404 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4405 hdev->manufacturer = 15; 4406 hdev->setup = btbcm_setup_patchram; 4407 hdev->set_diag = btusb_bcm_set_diag; 4408 hdev->set_bdaddr = btbcm_set_bdaddr; 4409 4410 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4411 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4412 } 4413 4414 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4415 (id->driver_info & BTUSB_BCM_APPLE)) { 4416 hdev->manufacturer = 15; 4417 hdev->setup = btbcm_setup_apple; 4418 hdev->set_diag = btusb_bcm_set_diag; 4419 4420 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4421 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4422 } 4423 4424 /* Combined Intel Device setup to support multiple setup routine */ 4425 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4426 err = btintel_configure_setup(hdev, btusb_driver.name); 4427 if (err) 4428 goto out_free_dev; 4429 4430 /* Transport specific configuration */ 4431 hdev->send = btusb_send_frame_intel; 4432 hdev->cmd_timeout = btusb_intel_cmd_timeout; 4433 4434 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4435 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4436 4437 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4438 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4439 4440 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4441 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4442 } 4443 4444 if (id->driver_info & BTUSB_MARVELL) 4445 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4446 4447 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4448 (id->driver_info & BTUSB_MEDIATEK)) { 4449 hdev->setup = btusb_mtk_setup; 4450 hdev->shutdown = btusb_mtk_shutdown; 4451 hdev->manufacturer = 70; 4452 hdev->cmd_timeout = btmtk_reset_sync; 4453 hdev->set_bdaddr = btmtk_set_bdaddr; 4454 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4455 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4456 data->recv_acl = btusb_recv_acl_mtk; 4457 } 4458 4459 if (id->driver_info & BTUSB_SWAVE) { 4460 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4461 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4462 } 4463 4464 if (id->driver_info & BTUSB_INTEL_BOOT) { 4465 hdev->manufacturer = 2; 4466 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4467 } 4468 4469 if (id->driver_info & BTUSB_ATH3012) { 4470 data->setup_on_usb = btusb_setup_qca; 4471 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4472 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4473 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4474 } 4475 4476 if (id->driver_info & BTUSB_QCA_ROME) { 4477 data->setup_on_usb = btusb_setup_qca; 4478 hdev->shutdown = btusb_shutdown_qca; 4479 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4480 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4481 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4482 btusb_check_needs_reset_resume(intf); 4483 } 4484 4485 if (id->driver_info & BTUSB_QCA_WCN6855) { 4486 data->qca_dump.id_vendor = id->idVendor; 4487 data->qca_dump.id_product = id->idProduct; 4488 data->recv_event = btusb_recv_evt_qca; 4489 data->recv_acl = btusb_recv_acl_qca; 4490 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4491 data->setup_on_usb = btusb_setup_qca; 4492 hdev->shutdown = btusb_shutdown_qca; 4493 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4494 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4495 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4496 hci_set_msft_opcode(hdev, 0xFD70); 4497 } 4498 4499 if (id->driver_info & BTUSB_AMP) { 4500 /* AMP controllers do not support SCO packets */ 4501 data->isoc = NULL; 4502 } else { 4503 /* Interface orders are hardcoded in the specification */ 4504 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4505 data->isoc_ifnum = ifnum_base + 1; 4506 } 4507 4508 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4509 (id->driver_info & BTUSB_REALTEK)) { 4510 btrtl_set_driver_name(hdev, btusb_driver.name); 4511 hdev->setup = btusb_setup_realtek; 4512 hdev->shutdown = btrtl_shutdown_realtek; 4513 hdev->cmd_timeout = btusb_rtl_cmd_timeout; 4514 hdev->hw_error = btusb_rtl_hw_error; 4515 4516 /* Realtek devices need to set remote wakeup on auto-suspend */ 4517 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4518 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4519 } 4520 4521 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4522 /* Support is advertised, but not implemented */ 4523 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4524 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4525 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4526 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4527 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks); 4528 } 4529 4530 if (!reset) 4531 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4532 4533 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4534 if (!disable_scofix) 4535 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4536 } 4537 4538 if (id->driver_info & BTUSB_BROKEN_ISOC) 4539 data->isoc = NULL; 4540 4541 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4542 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4543 4544 if (id->driver_info & BTUSB_VALID_LE_STATES) 4545 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); 4546 4547 if (id->driver_info & BTUSB_DIGIANSWER) { 4548 data->cmdreq_type = USB_TYPE_VENDOR; 4549 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4550 } 4551 4552 if (id->driver_info & BTUSB_CSR) { 4553 struct usb_device *udev = data->udev; 4554 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4555 4556 /* Old firmware would otherwise execute USB reset */ 4557 if (bcdDevice < 0x117) 4558 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4559 4560 /* This must be set first in case we disable it for fakes */ 4561 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4562 4563 /* Fake CSR devices with broken commands */ 4564 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4565 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4566 hdev->setup = btusb_setup_csr; 4567 } 4568 4569 if (id->driver_info & BTUSB_SNIFFER) { 4570 struct usb_device *udev = data->udev; 4571 4572 /* New sniffer firmware has crippled HCI interface */ 4573 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4574 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4575 } 4576 4577 if (id->driver_info & BTUSB_INTEL_BOOT) { 4578 /* A bug in the bootloader causes that interrupt interface is 4579 * only enabled after receiving SetInterface(0, AltSetting=0). 4580 */ 4581 err = usb_set_interface(data->udev, 0, 0); 4582 if (err < 0) { 4583 BT_ERR("failed to set interface 0, alt 0 %d", err); 4584 goto out_free_dev; 4585 } 4586 } 4587 4588 if (data->isoc) { 4589 err = usb_driver_claim_interface(&btusb_driver, 4590 data->isoc, data); 4591 if (err < 0) 4592 goto out_free_dev; 4593 } 4594 4595 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4596 if (!usb_driver_claim_interface(&btusb_driver, 4597 data->diag, data)) 4598 __set_diag_interface(hdev); 4599 else 4600 data->diag = NULL; 4601 } 4602 4603 if (enable_autosuspend) 4604 usb_enable_autosuspend(data->udev); 4605 4606 data->poll_sync = enable_poll_sync; 4607 4608 err = hci_register_dev(hdev); 4609 if (err < 0) 4610 goto out_free_dev; 4611 4612 usb_set_intfdata(intf, data); 4613 4614 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4615 &force_poll_sync_fops); 4616 4617 return 0; 4618 4619 out_free_dev: 4620 if (data->reset_gpio) 4621 gpiod_put(data->reset_gpio); 4622 hci_free_dev(hdev); 4623 return err; 4624 } 4625 4626 static void btusb_disconnect(struct usb_interface *intf) 4627 { 4628 struct btusb_data *data = usb_get_intfdata(intf); 4629 struct hci_dev *hdev; 4630 4631 BT_DBG("intf %p", intf); 4632 4633 if (!data) 4634 return; 4635 4636 hdev = data->hdev; 4637 usb_set_intfdata(data->intf, NULL); 4638 4639 if (data->isoc) 4640 usb_set_intfdata(data->isoc, NULL); 4641 4642 if (data->diag) 4643 usb_set_intfdata(data->diag, NULL); 4644 4645 hci_unregister_dev(hdev); 4646 4647 if (intf == data->intf) { 4648 if (data->isoc) 4649 usb_driver_release_interface(&btusb_driver, data->isoc); 4650 if (data->diag) 4651 usb_driver_release_interface(&btusb_driver, data->diag); 4652 } else if (intf == data->isoc) { 4653 if (data->diag) 4654 usb_driver_release_interface(&btusb_driver, data->diag); 4655 usb_driver_release_interface(&btusb_driver, data->intf); 4656 } else if (intf == data->diag) { 4657 usb_driver_release_interface(&btusb_driver, data->intf); 4658 if (data->isoc) 4659 usb_driver_release_interface(&btusb_driver, data->isoc); 4660 } 4661 4662 if (data->oob_wake_irq) 4663 device_init_wakeup(&data->udev->dev, false); 4664 4665 if (data->reset_gpio) 4666 gpiod_put(data->reset_gpio); 4667 4668 hci_free_dev(hdev); 4669 } 4670 4671 #ifdef CONFIG_PM 4672 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4673 { 4674 struct btusb_data *data = usb_get_intfdata(intf); 4675 4676 BT_DBG("intf %p", intf); 4677 4678 /* Don't suspend if there are connections */ 4679 if (hci_conn_count(data->hdev)) 4680 return -EBUSY; 4681 4682 if (data->suspend_count++) 4683 return 0; 4684 4685 spin_lock_irq(&data->txlock); 4686 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4687 set_bit(BTUSB_SUSPENDING, &data->flags); 4688 spin_unlock_irq(&data->txlock); 4689 } else { 4690 spin_unlock_irq(&data->txlock); 4691 data->suspend_count--; 4692 return -EBUSY; 4693 } 4694 4695 cancel_work_sync(&data->work); 4696 4697 btusb_stop_traffic(data); 4698 usb_kill_anchored_urbs(&data->tx_anchor); 4699 4700 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4701 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4702 enable_irq_wake(data->oob_wake_irq); 4703 enable_irq(data->oob_wake_irq); 4704 } 4705 4706 /* For global suspend, Realtek devices lose the loaded fw 4707 * in them. But for autosuspend, firmware should remain. 4708 * Actually, it depends on whether the usb host sends 4709 * set feature (enable wakeup) or not. 4710 */ 4711 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4712 if (PMSG_IS_AUTO(message) && 4713 device_can_wakeup(&data->udev->dev)) 4714 data->udev->do_remote_wakeup = 1; 4715 else if (!PMSG_IS_AUTO(message) && 4716 !device_may_wakeup(&data->udev->dev)) { 4717 data->udev->do_remote_wakeup = 0; 4718 data->udev->reset_resume = 1; 4719 } 4720 } 4721 4722 return 0; 4723 } 4724 4725 static void play_deferred(struct btusb_data *data) 4726 { 4727 struct urb *urb; 4728 int err; 4729 4730 while ((urb = usb_get_from_anchor(&data->deferred))) { 4731 usb_anchor_urb(urb, &data->tx_anchor); 4732 4733 err = usb_submit_urb(urb, GFP_ATOMIC); 4734 if (err < 0) { 4735 if (err != -EPERM && err != -ENODEV) 4736 BT_ERR("%s urb %p submission failed (%d)", 4737 data->hdev->name, urb, -err); 4738 kfree(urb->setup_packet); 4739 usb_unanchor_urb(urb); 4740 usb_free_urb(urb); 4741 break; 4742 } 4743 4744 data->tx_in_flight++; 4745 usb_free_urb(urb); 4746 } 4747 4748 /* Cleanup the rest deferred urbs. */ 4749 while ((urb = usb_get_from_anchor(&data->deferred))) { 4750 kfree(urb->setup_packet); 4751 usb_free_urb(urb); 4752 } 4753 } 4754 4755 static int btusb_resume(struct usb_interface *intf) 4756 { 4757 struct btusb_data *data = usb_get_intfdata(intf); 4758 struct hci_dev *hdev = data->hdev; 4759 int err = 0; 4760 4761 BT_DBG("intf %p", intf); 4762 4763 if (--data->suspend_count) 4764 return 0; 4765 4766 /* Disable only if not already disabled (keep it balanced) */ 4767 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4768 disable_irq(data->oob_wake_irq); 4769 disable_irq_wake(data->oob_wake_irq); 4770 } 4771 4772 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4773 goto done; 4774 4775 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4776 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4777 if (err < 0) { 4778 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4779 goto failed; 4780 } 4781 } 4782 4783 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4784 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4785 if (err < 0) { 4786 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4787 goto failed; 4788 } 4789 4790 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4791 } 4792 4793 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4794 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4795 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4796 else 4797 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4798 } 4799 4800 spin_lock_irq(&data->txlock); 4801 play_deferred(data); 4802 clear_bit(BTUSB_SUSPENDING, &data->flags); 4803 spin_unlock_irq(&data->txlock); 4804 schedule_work(&data->work); 4805 4806 return 0; 4807 4808 failed: 4809 usb_scuttle_anchored_urbs(&data->deferred); 4810 done: 4811 spin_lock_irq(&data->txlock); 4812 clear_bit(BTUSB_SUSPENDING, &data->flags); 4813 spin_unlock_irq(&data->txlock); 4814 4815 return err; 4816 } 4817 #endif 4818 4819 #ifdef CONFIG_DEV_COREDUMP 4820 static void btusb_coredump(struct device *dev) 4821 { 4822 struct btusb_data *data = dev_get_drvdata(dev); 4823 struct hci_dev *hdev = data->hdev; 4824 4825 if (hdev->dump.coredump) 4826 hdev->dump.coredump(hdev); 4827 } 4828 #endif 4829 4830 static struct usb_driver btusb_driver = { 4831 .name = "btusb", 4832 .probe = btusb_probe, 4833 .disconnect = btusb_disconnect, 4834 #ifdef CONFIG_PM 4835 .suspend = btusb_suspend, 4836 .resume = btusb_resume, 4837 #endif 4838 .id_table = btusb_table, 4839 .supports_autosuspend = 1, 4840 .disable_hub_initiated_lpm = 1, 4841 4842 #ifdef CONFIG_DEV_COREDUMP 4843 .driver = { 4844 .coredump = btusb_coredump, 4845 }, 4846 #endif 4847 }; 4848 4849 module_usb_driver(btusb_driver); 4850 4851 module_param(disable_scofix, bool, 0644); 4852 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4853 4854 module_param(force_scofix, bool, 0644); 4855 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4856 4857 module_param(enable_autosuspend, bool, 0644); 4858 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4859 4860 module_param(reset, bool, 0644); 4861 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4862 4863 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4864 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4865 MODULE_VERSION(VERSION); 4866 MODULE_LICENSE("GPL"); 4867