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