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