1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Generic Bluetooth USB driver 5 * 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 7 */ 8 9 #include <linux/dmi.h> 10 #include <linux/module.h> 11 #include <linux/usb.h> 12 #include <linux/usb/quirks.h> 13 #include <linux/firmware.h> 14 #include <linux/iopoll.h> 15 #include <linux/of_device.h> 16 #include <linux/of_irq.h> 17 #include <linux/suspend.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/debugfs.h> 20 #include <asm/unaligned.h> 21 22 #include <net/bluetooth/bluetooth.h> 23 #include <net/bluetooth/hci_core.h> 24 25 #include "btintel.h" 26 #include "btbcm.h" 27 #include "btrtl.h" 28 #include "btmtk.h" 29 30 #define VERSION "0.8" 31 32 static bool disable_scofix; 33 static bool force_scofix; 34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 36 static bool reset = true; 37 38 static struct usb_driver btusb_driver; 39 40 #define BTUSB_IGNORE BIT(0) 41 #define BTUSB_DIGIANSWER BIT(1) 42 #define BTUSB_CSR BIT(2) 43 #define BTUSB_SNIFFER BIT(3) 44 #define BTUSB_BCM92035 BIT(4) 45 #define BTUSB_BROKEN_ISOC BIT(5) 46 #define BTUSB_WRONG_SCO_MTU BIT(6) 47 #define BTUSB_ATH3012 BIT(7) 48 #define BTUSB_INTEL_COMBINED BIT(8) 49 #define BTUSB_INTEL_BOOT BIT(9) 50 #define BTUSB_BCM_PATCHRAM BIT(10) 51 #define BTUSB_MARVELL BIT(11) 52 #define BTUSB_SWAVE BIT(12) 53 #define BTUSB_AMP BIT(13) 54 #define BTUSB_QCA_ROME BIT(14) 55 #define BTUSB_BCM_APPLE BIT(15) 56 #define BTUSB_REALTEK BIT(16) 57 #define BTUSB_BCM2045 BIT(17) 58 #define BTUSB_IFNUM_2 BIT(18) 59 #define BTUSB_CW6622 BIT(19) 60 #define BTUSB_MEDIATEK BIT(20) 61 #define BTUSB_WIDEBAND_SPEECH BIT(21) 62 #define BTUSB_VALID_LE_STATES BIT(22) 63 #define BTUSB_QCA_WCN6855 BIT(23) 64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 66 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 67 #define BTUSB_ACTIONS_SEMI BIT(27) 68 69 static const struct usb_device_id btusb_table[] = { 70 /* Generic Bluetooth USB device */ 71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 72 73 /* Generic Bluetooth AMP device */ 74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 75 76 /* Generic Bluetooth USB interface */ 77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 78 79 /* Apple-specific (Broadcom) devices */ 80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 82 83 /* MediaTek MT76x0E */ 84 { USB_DEVICE(0x0e8d, 0x763f) }, 85 86 /* Broadcom SoftSailing reporting vendor specific */ 87 { USB_DEVICE(0x0a5c, 0x21e1) }, 88 89 /* Apple MacBookPro 7,1 */ 90 { USB_DEVICE(0x05ac, 0x8213) }, 91 92 /* Apple iMac11,1 */ 93 { USB_DEVICE(0x05ac, 0x8215) }, 94 95 /* Apple MacBookPro6,2 */ 96 { USB_DEVICE(0x05ac, 0x8218) }, 97 98 /* Apple MacBookAir3,1, MacBookAir3,2 */ 99 { USB_DEVICE(0x05ac, 0x821b) }, 100 101 /* Apple MacBookAir4,1 */ 102 { USB_DEVICE(0x05ac, 0x821f) }, 103 104 /* Apple MacBookPro8,2 */ 105 { USB_DEVICE(0x05ac, 0x821a) }, 106 107 /* Apple MacMini5,1 */ 108 { USB_DEVICE(0x05ac, 0x8281) }, 109 110 /* AVM BlueFRITZ! USB v2.0 */ 111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 112 113 /* Bluetooth Ultraport Module from IBM */ 114 { USB_DEVICE(0x04bf, 0x030a) }, 115 116 /* ALPS Modules with non-standard id */ 117 { USB_DEVICE(0x044e, 0x3001) }, 118 { USB_DEVICE(0x044e, 0x3002) }, 119 120 /* Ericsson with non-standard id */ 121 { USB_DEVICE(0x0bdb, 0x1002) }, 122 123 /* Canyon CN-BTU1 with HID interfaces */ 124 { USB_DEVICE(0x0c10, 0x0000) }, 125 126 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 128 129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 131 .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* Broadcom BCM920703 (HTC Vive) */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Foxconn - Hon Hai */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Lite-On Technology - Broadcom based */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Broadcom devices with vendor specific id */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* ASUSTek Computer - Broadcom based */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* Belkin F8065bf - Broadcom based */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* IMC Networks - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* Dell Computer - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* Toshiba Corp - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Intel Bluetooth USB Bootloader (RAM module) */ 170 { USB_DEVICE(0x8087, 0x0a5a), 171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 172 173 { } /* Terminating entry */ 174 }; 175 176 MODULE_DEVICE_TABLE(usb, btusb_table); 177 178 static const struct usb_device_id quirks_table[] = { 179 /* CSR BlueCore devices */ 180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 181 182 /* Broadcom BCM2033 without firmware */ 183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 184 185 /* Broadcom BCM2045 devices */ 186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 187 188 /* Atheros 3011 with sflash firmware */ 189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 196 197 /* Atheros AR9285 Malbec with sflash firmware */ 198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 199 200 /* Atheros 3012 with sflash firmware */ 201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 251 252 /* Atheros AR5BBU12 with sflash firmware */ 253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 254 255 /* Atheros AR5BBU12 with sflash firmware */ 256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 258 259 /* QCA ROME chipset */ 260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 261 BTUSB_WIDEBAND_SPEECH }, 262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 263 BTUSB_WIDEBAND_SPEECH }, 264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 265 BTUSB_WIDEBAND_SPEECH }, 266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 267 BTUSB_WIDEBAND_SPEECH }, 268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 269 BTUSB_WIDEBAND_SPEECH }, 270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 271 BTUSB_WIDEBAND_SPEECH }, 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 273 BTUSB_WIDEBAND_SPEECH }, 274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 275 BTUSB_WIDEBAND_SPEECH }, 276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 299 /* QCA WCN6855 chipset */ 300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 301 BTUSB_WIDEBAND_SPEECH | 302 BTUSB_VALID_LE_STATES }, 303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 304 BTUSB_WIDEBAND_SPEECH | 305 BTUSB_VALID_LE_STATES }, 306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 307 BTUSB_WIDEBAND_SPEECH | 308 BTUSB_VALID_LE_STATES }, 309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 310 BTUSB_WIDEBAND_SPEECH | 311 BTUSB_VALID_LE_STATES }, 312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 313 BTUSB_WIDEBAND_SPEECH | 314 BTUSB_VALID_LE_STATES }, 315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH | 317 BTUSB_VALID_LE_STATES }, 318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 319 BTUSB_WIDEBAND_SPEECH | 320 BTUSB_VALID_LE_STATES }, 321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH | 323 BTUSB_VALID_LE_STATES }, 324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH | 326 BTUSB_VALID_LE_STATES }, 327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH | 329 BTUSB_VALID_LE_STATES }, 330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH | 332 BTUSB_VALID_LE_STATES }, 333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH | 335 BTUSB_VALID_LE_STATES }, 336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH | 338 BTUSB_VALID_LE_STATES }, 339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH | 341 BTUSB_VALID_LE_STATES }, 342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH | 344 BTUSB_VALID_LE_STATES }, 345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH | 347 BTUSB_VALID_LE_STATES }, 348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH | 350 BTUSB_VALID_LE_STATES }, 351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH | 353 BTUSB_VALID_LE_STATES }, 354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH | 356 BTUSB_VALID_LE_STATES }, 357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH | 359 BTUSB_VALID_LE_STATES }, 360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH | 362 BTUSB_VALID_LE_STATES }, 363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH | 365 BTUSB_VALID_LE_STATES }, 366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH | 368 BTUSB_VALID_LE_STATES }, 369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH | 371 BTUSB_VALID_LE_STATES }, 372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH | 374 BTUSB_VALID_LE_STATES }, 375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH | 377 BTUSB_VALID_LE_STATES }, 378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 379 BTUSB_WIDEBAND_SPEECH | 380 BTUSB_VALID_LE_STATES }, 381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH | 383 BTUSB_VALID_LE_STATES }, 384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH | 386 BTUSB_VALID_LE_STATES }, 387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 388 BTUSB_WIDEBAND_SPEECH | 389 BTUSB_VALID_LE_STATES }, 390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH | 392 BTUSB_VALID_LE_STATES }, 393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 394 BTUSB_WIDEBAND_SPEECH | 395 BTUSB_VALID_LE_STATES }, 396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH | 398 BTUSB_VALID_LE_STATES }, 399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH | 401 BTUSB_VALID_LE_STATES }, 402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH | 404 BTUSB_VALID_LE_STATES }, 405 406 /* QCA WCN785x chipset */ 407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH | 409 BTUSB_VALID_LE_STATES }, 410 411 /* Broadcom BCM2035 */ 412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 415 416 /* Broadcom BCM2045 */ 417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 420 /* IBM/Lenovo ThinkPad with Broadcom chip */ 421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 424 /* HP laptop with Broadcom chip */ 425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 426 427 /* Dell laptop with Broadcom chip */ 428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 429 430 /* Dell Wireless 370 and 410 devices */ 431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 434 /* Belkin F8T012 and F8T013 devices */ 435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 438 /* Asus WL-BTD202 device */ 439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 441 /* Kensington Bluetooth USB adapter */ 442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 443 444 /* RTX Telecom based adapters with buggy SCO support */ 445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 447 448 /* CONWISE Technology based adapters with buggy SCO support */ 449 { USB_DEVICE(0x0e5e, 0x6622), 450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 451 452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 454 455 /* Digianswer devices */ 456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 458 459 /* CSR BlueCore Bluetooth Sniffer */ 460 { USB_DEVICE(0x0a12, 0x0002), 461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 462 463 /* Frontline ComProbe Bluetooth Sniffer */ 464 { USB_DEVICE(0x16d3, 0x0002), 465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 466 467 /* Marvell Bluetooth devices */ 468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 471 472 /* Intel Bluetooth devices */ 473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 480 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 481 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 482 BTUSB_INTEL_NO_WBS_SUPPORT | 483 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 484 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 485 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 486 BTUSB_INTEL_NO_WBS_SUPPORT | 487 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 488 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 489 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 490 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 491 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 492 493 /* Other Intel Bluetooth devices */ 494 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 495 .driver_info = BTUSB_IGNORE }, 496 497 /* Realtek 8821CE Bluetooth devices */ 498 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 499 BTUSB_WIDEBAND_SPEECH }, 500 501 /* Realtek 8822CE Bluetooth devices */ 502 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 503 BTUSB_WIDEBAND_SPEECH }, 504 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 505 BTUSB_WIDEBAND_SPEECH }, 506 507 /* Realtek 8822CU Bluetooth devices */ 508 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 509 BTUSB_WIDEBAND_SPEECH }, 510 511 /* Realtek 8852AE Bluetooth devices */ 512 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 513 BTUSB_WIDEBAND_SPEECH }, 514 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 515 BTUSB_WIDEBAND_SPEECH }, 516 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 517 BTUSB_WIDEBAND_SPEECH }, 518 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 519 BTUSB_WIDEBAND_SPEECH }, 520 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 521 BTUSB_WIDEBAND_SPEECH }, 522 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 523 BTUSB_WIDEBAND_SPEECH }, 524 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 525 BTUSB_WIDEBAND_SPEECH }, 526 527 /* Realtek 8852CE Bluetooth devices */ 528 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 529 BTUSB_WIDEBAND_SPEECH }, 530 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 531 BTUSB_WIDEBAND_SPEECH }, 532 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 533 BTUSB_WIDEBAND_SPEECH }, 534 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 535 BTUSB_WIDEBAND_SPEECH }, 536 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 537 BTUSB_WIDEBAND_SPEECH }, 538 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 539 BTUSB_WIDEBAND_SPEECH }, 540 541 /* Realtek 8852BE Bluetooth devices */ 542 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 543 BTUSB_WIDEBAND_SPEECH }, 544 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 545 BTUSB_WIDEBAND_SPEECH }, 546 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 547 BTUSB_WIDEBAND_SPEECH }, 548 549 /* Realtek Bluetooth devices */ 550 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 551 .driver_info = BTUSB_REALTEK }, 552 553 /* MediaTek Bluetooth devices */ 554 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 555 .driver_info = BTUSB_MEDIATEK | 556 BTUSB_WIDEBAND_SPEECH | 557 BTUSB_VALID_LE_STATES }, 558 559 /* Additional MediaTek MT7615E Bluetooth devices */ 560 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 561 562 /* Additional MediaTek MT7663 Bluetooth devices */ 563 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 564 BTUSB_WIDEBAND_SPEECH | 565 BTUSB_VALID_LE_STATES }, 566 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 567 BTUSB_WIDEBAND_SPEECH | 568 BTUSB_VALID_LE_STATES }, 569 570 /* Additional MediaTek MT7668 Bluetooth devices */ 571 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 572 BTUSB_WIDEBAND_SPEECH | 573 BTUSB_VALID_LE_STATES }, 574 575 /* Additional MediaTek MT7921 Bluetooth devices */ 576 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 577 BTUSB_WIDEBAND_SPEECH | 578 BTUSB_VALID_LE_STATES }, 579 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 580 BTUSB_WIDEBAND_SPEECH | 581 BTUSB_VALID_LE_STATES }, 582 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 583 BTUSB_WIDEBAND_SPEECH | 584 BTUSB_VALID_LE_STATES }, 585 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 586 BTUSB_WIDEBAND_SPEECH | 587 BTUSB_VALID_LE_STATES }, 588 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 589 BTUSB_WIDEBAND_SPEECH | 590 BTUSB_VALID_LE_STATES }, 591 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 592 BTUSB_WIDEBAND_SPEECH | 593 BTUSB_VALID_LE_STATES }, 594 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 595 BTUSB_WIDEBAND_SPEECH | 596 BTUSB_VALID_LE_STATES }, 597 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 598 BTUSB_WIDEBAND_SPEECH | 599 BTUSB_VALID_LE_STATES }, 600 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 601 BTUSB_WIDEBAND_SPEECH | 602 BTUSB_VALID_LE_STATES }, 603 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 604 BTUSB_WIDEBAND_SPEECH | 605 BTUSB_VALID_LE_STATES }, 606 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 607 BTUSB_WIDEBAND_SPEECH | 608 BTUSB_VALID_LE_STATES }, 609 610 /* MediaTek MT7922A Bluetooth devices */ 611 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 612 BTUSB_WIDEBAND_SPEECH | 613 BTUSB_VALID_LE_STATES }, 614 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 615 BTUSB_WIDEBAND_SPEECH | 616 BTUSB_VALID_LE_STATES }, 617 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 618 BTUSB_WIDEBAND_SPEECH | 619 BTUSB_VALID_LE_STATES }, 620 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 621 BTUSB_WIDEBAND_SPEECH | 622 BTUSB_VALID_LE_STATES }, 623 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 624 BTUSB_WIDEBAND_SPEECH | 625 BTUSB_VALID_LE_STATES }, 626 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 627 BTUSB_WIDEBAND_SPEECH | 628 BTUSB_VALID_LE_STATES }, 629 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 630 BTUSB_WIDEBAND_SPEECH | 631 BTUSB_VALID_LE_STATES }, 632 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 633 BTUSB_WIDEBAND_SPEECH | 634 BTUSB_VALID_LE_STATES }, 635 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 636 BTUSB_WIDEBAND_SPEECH | 637 BTUSB_VALID_LE_STATES }, 638 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 639 BTUSB_WIDEBAND_SPEECH | 640 BTUSB_VALID_LE_STATES }, 641 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 642 BTUSB_WIDEBAND_SPEECH | 643 BTUSB_VALID_LE_STATES }, 644 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 645 BTUSB_WIDEBAND_SPEECH | 646 BTUSB_VALID_LE_STATES }, 647 648 /* Additional Realtek 8723AE Bluetooth devices */ 649 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 650 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 651 652 /* Additional Realtek 8723BE Bluetooth devices */ 653 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 654 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 655 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 656 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 657 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 658 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 659 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 660 661 /* Additional Realtek 8723BU Bluetooth devices */ 662 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 663 664 /* Additional Realtek 8723DE Bluetooth devices */ 665 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 666 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 667 668 /* Additional Realtek 8761BUV Bluetooth devices */ 669 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 670 BTUSB_WIDEBAND_SPEECH }, 671 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 672 BTUSB_WIDEBAND_SPEECH }, 673 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 674 BTUSB_WIDEBAND_SPEECH }, 675 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 676 BTUSB_WIDEBAND_SPEECH }, 677 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 678 BTUSB_WIDEBAND_SPEECH }, 679 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 680 BTUSB_WIDEBAND_SPEECH }, 681 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 682 BTUSB_WIDEBAND_SPEECH }, 683 684 /* Additional Realtek 8821AE Bluetooth devices */ 685 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 686 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 687 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 688 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 689 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 690 691 /* Additional Realtek 8822BE Bluetooth devices */ 692 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 693 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 694 695 /* Additional Realtek 8822CE Bluetooth devices */ 696 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 697 BTUSB_WIDEBAND_SPEECH }, 698 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 699 BTUSB_WIDEBAND_SPEECH }, 700 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 701 BTUSB_WIDEBAND_SPEECH }, 702 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 703 BTUSB_WIDEBAND_SPEECH }, 704 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 705 BTUSB_WIDEBAND_SPEECH }, 706 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 707 BTUSB_WIDEBAND_SPEECH }, 708 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 709 BTUSB_WIDEBAND_SPEECH }, 710 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 711 BTUSB_WIDEBAND_SPEECH }, 712 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 713 BTUSB_WIDEBAND_SPEECH }, 714 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 715 BTUSB_WIDEBAND_SPEECH }, 716 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 717 BTUSB_WIDEBAND_SPEECH }, 718 719 /* Actions Semiconductor ATS2851 based devices */ 720 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 721 722 /* Silicon Wave based devices */ 723 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 724 725 { } /* Terminating entry */ 726 }; 727 728 /* The Bluetooth USB module build into some devices needs to be reset on resume, 729 * this is a problem with the platform (likely shutting off all power) not with 730 * the module itself. So we use a DMI list to match known broken platforms. 731 */ 732 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 733 { 734 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 735 .matches = { 736 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 737 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 738 }, 739 }, 740 { 741 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 742 .matches = { 743 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 744 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 745 }, 746 }, 747 { 748 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 749 .matches = { 750 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 751 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 752 }, 753 }, 754 {} 755 }; 756 757 struct qca_dump_info { 758 /* fields for dump collection */ 759 u16 id_vendor; 760 u16 id_product; 761 u32 fw_version; 762 u32 controller_id; 763 u32 ram_dump_size; 764 u16 ram_dump_seqno; 765 }; 766 767 #define BTUSB_MAX_ISOC_FRAMES 10 768 769 #define BTUSB_INTR_RUNNING 0 770 #define BTUSB_BULK_RUNNING 1 771 #define BTUSB_ISOC_RUNNING 2 772 #define BTUSB_SUSPENDING 3 773 #define BTUSB_DID_ISO_RESUME 4 774 #define BTUSB_BOOTLOADER 5 775 #define BTUSB_DOWNLOADING 6 776 #define BTUSB_FIRMWARE_LOADED 7 777 #define BTUSB_FIRMWARE_FAILED 8 778 #define BTUSB_BOOTING 9 779 #define BTUSB_DIAG_RUNNING 10 780 #define BTUSB_OOB_WAKE_ENABLED 11 781 #define BTUSB_HW_RESET_ACTIVE 12 782 #define BTUSB_TX_WAIT_VND_EVT 13 783 #define BTUSB_WAKEUP_AUTOSUSPEND 14 784 #define BTUSB_USE_ALT3_FOR_WBS 15 785 #define BTUSB_ALT6_CONTINUOUS_TX 16 786 #define BTUSB_HW_SSR_ACTIVE 17 787 788 struct btusb_data { 789 struct hci_dev *hdev; 790 struct usb_device *udev; 791 struct usb_interface *intf; 792 struct usb_interface *isoc; 793 struct usb_interface *diag; 794 unsigned isoc_ifnum; 795 796 unsigned long flags; 797 798 bool poll_sync; 799 int intr_interval; 800 struct work_struct work; 801 struct work_struct waker; 802 struct delayed_work rx_work; 803 804 struct sk_buff_head acl_q; 805 806 struct usb_anchor deferred; 807 struct usb_anchor tx_anchor; 808 int tx_in_flight; 809 spinlock_t txlock; 810 811 struct usb_anchor intr_anchor; 812 struct usb_anchor bulk_anchor; 813 struct usb_anchor isoc_anchor; 814 struct usb_anchor diag_anchor; 815 struct usb_anchor ctrl_anchor; 816 spinlock_t rxlock; 817 818 struct sk_buff *evt_skb; 819 struct sk_buff *acl_skb; 820 struct sk_buff *sco_skb; 821 822 struct usb_endpoint_descriptor *intr_ep; 823 struct usb_endpoint_descriptor *bulk_tx_ep; 824 struct usb_endpoint_descriptor *bulk_rx_ep; 825 struct usb_endpoint_descriptor *isoc_tx_ep; 826 struct usb_endpoint_descriptor *isoc_rx_ep; 827 struct usb_endpoint_descriptor *diag_tx_ep; 828 struct usb_endpoint_descriptor *diag_rx_ep; 829 830 struct gpio_desc *reset_gpio; 831 832 __u8 cmdreq_type; 833 __u8 cmdreq; 834 835 unsigned int sco_num; 836 unsigned int air_mode; 837 bool usb_alt6_packet_flow; 838 int isoc_altsetting; 839 int suspend_count; 840 841 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 842 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 843 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 844 845 int (*setup_on_usb)(struct hci_dev *hdev); 846 847 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 848 unsigned cmd_timeout_cnt; 849 850 struct qca_dump_info qca_dump; 851 }; 852 853 static void btusb_reset(struct hci_dev *hdev) 854 { 855 struct btusb_data *data; 856 int err; 857 858 if (hdev->reset) { 859 hdev->reset(hdev); 860 return; 861 } 862 863 data = hci_get_drvdata(hdev); 864 /* This is not an unbalanced PM reference since the device will reset */ 865 err = usb_autopm_get_interface(data->intf); 866 if (err) { 867 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 868 return; 869 } 870 871 bt_dev_err(hdev, "Resetting usb device."); 872 usb_queue_reset_device(data->intf); 873 } 874 875 static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 876 { 877 struct btusb_data *data = hci_get_drvdata(hdev); 878 struct gpio_desc *reset_gpio = data->reset_gpio; 879 struct btintel_data *intel_data = hci_get_priv(hdev); 880 881 if (++data->cmd_timeout_cnt < 5) 882 return; 883 884 if (intel_data->acpi_reset_method) { 885 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 886 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 887 return; 888 } 889 890 bt_dev_err(hdev, "Initiating acpi reset method"); 891 /* If ACPI reset method fails, lets try with legacy GPIO 892 * toggling 893 */ 894 if (!intel_data->acpi_reset_method(hdev)) { 895 return; 896 } 897 } 898 899 if (!reset_gpio) { 900 btusb_reset(hdev); 901 return; 902 } 903 904 /* 905 * Toggle the hard reset line if the platform provides one. The reset 906 * is going to yank the device off the USB and then replug. So doing 907 * once is enough. The cleanup is handled correctly on the way out 908 * (standard USB disconnect), and the new device is detected cleanly 909 * and bound to the driver again like it should be. 910 */ 911 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 912 bt_dev_err(hdev, "last reset failed? Not resetting again"); 913 return; 914 } 915 916 bt_dev_err(hdev, "Initiating HW reset via gpio"); 917 gpiod_set_value_cansleep(reset_gpio, 1); 918 msleep(100); 919 gpiod_set_value_cansleep(reset_gpio, 0); 920 } 921 922 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 923 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 924 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 925 926 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 927 928 struct rtk_dev_coredump_hdr { 929 u8 type; 930 u8 code; 931 u8 reserved[2]; 932 } __packed; 933 934 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 935 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 936 { 937 struct sk_buff *skb; 938 939 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 940 if (!skb) 941 return; 942 943 skb_put_data(skb, hdr, sizeof(*hdr)); 944 if (len) 945 skb_put_data(skb, buf, len); 946 947 if (!hci_devcd_init(hdev, skb->len)) { 948 hci_devcd_append(hdev, skb); 949 hci_devcd_complete(hdev); 950 } else { 951 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 952 kfree_skb(skb); 953 } 954 } 955 956 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) 957 { 958 struct btusb_data *data = hci_get_drvdata(hdev); 959 struct gpio_desc *reset_gpio = data->reset_gpio; 960 struct rtk_dev_coredump_hdr hdr = { 961 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 962 }; 963 964 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 965 966 if (++data->cmd_timeout_cnt < 5) 967 return; 968 969 if (!reset_gpio) { 970 btusb_reset(hdev); 971 return; 972 } 973 974 /* Toggle the hard reset line. The Realtek device is going to 975 * yank itself off the USB and then replug. The cleanup is handled 976 * correctly on the way out (standard USB disconnect), and the new 977 * device is detected cleanly and bound to the driver again like 978 * it should be. 979 */ 980 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 981 bt_dev_err(hdev, "last reset failed? Not resetting again"); 982 return; 983 } 984 985 bt_dev_err(hdev, "Reset Realtek device via gpio"); 986 gpiod_set_value_cansleep(reset_gpio, 1); 987 msleep(200); 988 gpiod_set_value_cansleep(reset_gpio, 0); 989 } 990 991 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 992 { 993 struct rtk_dev_coredump_hdr hdr = { 994 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 995 .code = code, 996 }; 997 998 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 999 1000 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1001 } 1002 1003 static void btusb_qca_cmd_timeout(struct hci_dev *hdev) 1004 { 1005 struct btusb_data *data = hci_get_drvdata(hdev); 1006 struct gpio_desc *reset_gpio = data->reset_gpio; 1007 1008 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1009 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout"); 1010 return; 1011 } 1012 1013 if (++data->cmd_timeout_cnt < 5) 1014 return; 1015 1016 if (reset_gpio) { 1017 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1018 1019 /* Toggle the hard reset line. The qca bt device is going to 1020 * yank itself off the USB and then replug. The cleanup is handled 1021 * correctly on the way out (standard USB disconnect), and the new 1022 * device is detected cleanly and bound to the driver again like 1023 * it should be. 1024 */ 1025 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1026 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1027 return; 1028 } 1029 1030 gpiod_set_value_cansleep(reset_gpio, 0); 1031 msleep(200); 1032 gpiod_set_value_cansleep(reset_gpio, 1); 1033 1034 return; 1035 } 1036 1037 btusb_reset(hdev); 1038 } 1039 1040 static inline void btusb_free_frags(struct btusb_data *data) 1041 { 1042 unsigned long flags; 1043 1044 spin_lock_irqsave(&data->rxlock, flags); 1045 1046 dev_kfree_skb_irq(data->evt_skb); 1047 data->evt_skb = NULL; 1048 1049 dev_kfree_skb_irq(data->acl_skb); 1050 data->acl_skb = NULL; 1051 1052 dev_kfree_skb_irq(data->sco_skb); 1053 data->sco_skb = NULL; 1054 1055 spin_unlock_irqrestore(&data->rxlock, flags); 1056 } 1057 1058 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1059 { 1060 if (data->intr_interval) { 1061 /* Trigger dequeue immediatelly if an event is received */ 1062 schedule_delayed_work(&data->rx_work, 0); 1063 } 1064 1065 return data->recv_event(data->hdev, skb); 1066 } 1067 1068 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1069 { 1070 struct sk_buff *skb; 1071 unsigned long flags; 1072 int err = 0; 1073 1074 spin_lock_irqsave(&data->rxlock, flags); 1075 skb = data->evt_skb; 1076 1077 while (count) { 1078 int len; 1079 1080 if (!skb) { 1081 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1082 if (!skb) { 1083 err = -ENOMEM; 1084 break; 1085 } 1086 1087 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1088 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1089 } 1090 1091 len = min_t(uint, hci_skb_expect(skb), count); 1092 skb_put_data(skb, buffer, len); 1093 1094 count -= len; 1095 buffer += len; 1096 hci_skb_expect(skb) -= len; 1097 1098 if (skb->len == HCI_EVENT_HDR_SIZE) { 1099 /* Complete event header */ 1100 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1101 1102 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1103 kfree_skb(skb); 1104 skb = NULL; 1105 1106 err = -EILSEQ; 1107 break; 1108 } 1109 } 1110 1111 if (!hci_skb_expect(skb)) { 1112 /* Complete frame */ 1113 btusb_recv_event(data, skb); 1114 skb = NULL; 1115 } 1116 } 1117 1118 data->evt_skb = skb; 1119 spin_unlock_irqrestore(&data->rxlock, flags); 1120 1121 return err; 1122 } 1123 1124 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1125 { 1126 /* Only queue ACL packet if intr_interval is set as it means 1127 * force_poll_sync has been enabled. 1128 */ 1129 if (!data->intr_interval) 1130 return data->recv_acl(data->hdev, skb); 1131 1132 skb_queue_tail(&data->acl_q, skb); 1133 schedule_delayed_work(&data->rx_work, data->intr_interval); 1134 1135 return 0; 1136 } 1137 1138 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1139 { 1140 struct sk_buff *skb; 1141 unsigned long flags; 1142 int err = 0; 1143 1144 spin_lock_irqsave(&data->rxlock, flags); 1145 skb = data->acl_skb; 1146 1147 while (count) { 1148 int len; 1149 1150 if (!skb) { 1151 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1152 if (!skb) { 1153 err = -ENOMEM; 1154 break; 1155 } 1156 1157 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1158 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1159 } 1160 1161 len = min_t(uint, hci_skb_expect(skb), count); 1162 skb_put_data(skb, buffer, len); 1163 1164 count -= len; 1165 buffer += len; 1166 hci_skb_expect(skb) -= len; 1167 1168 if (skb->len == HCI_ACL_HDR_SIZE) { 1169 __le16 dlen = hci_acl_hdr(skb)->dlen; 1170 1171 /* Complete ACL header */ 1172 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1173 1174 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1175 kfree_skb(skb); 1176 skb = NULL; 1177 1178 err = -EILSEQ; 1179 break; 1180 } 1181 } 1182 1183 if (!hci_skb_expect(skb)) { 1184 /* Complete frame */ 1185 btusb_recv_acl(data, skb); 1186 skb = NULL; 1187 } 1188 } 1189 1190 data->acl_skb = skb; 1191 spin_unlock_irqrestore(&data->rxlock, flags); 1192 1193 return err; 1194 } 1195 1196 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1197 struct hci_sco_hdr *hdr) 1198 { 1199 __u16 handle; 1200 1201 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1202 // Can't validate, userspace controls everything. 1203 return true; 1204 1205 /* 1206 * USB isochronous transfers are not designed to be reliable and may 1207 * lose fragments. When this happens, the next first fragment 1208 * encountered might actually be a continuation fragment. 1209 * Validate the handle to detect it and drop it, or else the upper 1210 * layer will get garbage for a while. 1211 */ 1212 1213 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1214 1215 switch (hci_conn_lookup_type(hdev, handle)) { 1216 case SCO_LINK: 1217 case ESCO_LINK: 1218 return true; 1219 default: 1220 return false; 1221 } 1222 } 1223 1224 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1225 { 1226 struct sk_buff *skb; 1227 unsigned long flags; 1228 int err = 0; 1229 1230 spin_lock_irqsave(&data->rxlock, flags); 1231 skb = data->sco_skb; 1232 1233 while (count) { 1234 int len; 1235 1236 if (!skb) { 1237 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1238 if (!skb) { 1239 err = -ENOMEM; 1240 break; 1241 } 1242 1243 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1244 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1245 } 1246 1247 len = min_t(uint, hci_skb_expect(skb), count); 1248 skb_put_data(skb, buffer, len); 1249 1250 count -= len; 1251 buffer += len; 1252 hci_skb_expect(skb) -= len; 1253 1254 if (skb->len == HCI_SCO_HDR_SIZE) { 1255 /* Complete SCO header */ 1256 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1257 1258 hci_skb_expect(skb) = hdr->dlen; 1259 1260 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1261 !btusb_validate_sco_handle(data->hdev, hdr)) { 1262 kfree_skb(skb); 1263 skb = NULL; 1264 1265 err = -EILSEQ; 1266 break; 1267 } 1268 } 1269 1270 if (!hci_skb_expect(skb)) { 1271 /* Complete frame */ 1272 hci_recv_frame(data->hdev, skb); 1273 skb = NULL; 1274 } 1275 } 1276 1277 data->sco_skb = skb; 1278 spin_unlock_irqrestore(&data->rxlock, flags); 1279 1280 return err; 1281 } 1282 1283 static void btusb_intr_complete(struct urb *urb) 1284 { 1285 struct hci_dev *hdev = urb->context; 1286 struct btusb_data *data = hci_get_drvdata(hdev); 1287 int err; 1288 1289 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1290 urb->actual_length); 1291 1292 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1293 return; 1294 1295 if (urb->status == 0) { 1296 hdev->stat.byte_rx += urb->actual_length; 1297 1298 if (btusb_recv_intr(data, urb->transfer_buffer, 1299 urb->actual_length) < 0) { 1300 bt_dev_err(hdev, "corrupted event packet"); 1301 hdev->stat.err_rx++; 1302 } 1303 } else if (urb->status == -ENOENT) { 1304 /* Avoid suspend failed when usb_kill_urb */ 1305 return; 1306 } 1307 1308 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1309 return; 1310 1311 usb_mark_last_busy(data->udev); 1312 usb_anchor_urb(urb, &data->intr_anchor); 1313 1314 err = usb_submit_urb(urb, GFP_ATOMIC); 1315 if (err < 0) { 1316 /* -EPERM: urb is being killed; 1317 * -ENODEV: device got disconnected 1318 */ 1319 if (err != -EPERM && err != -ENODEV) 1320 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1321 urb, -err); 1322 if (err != -EPERM) 1323 hci_cmd_sync_cancel(hdev, -err); 1324 usb_unanchor_urb(urb); 1325 } 1326 } 1327 1328 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1329 { 1330 struct btusb_data *data = hci_get_drvdata(hdev); 1331 struct urb *urb; 1332 unsigned char *buf; 1333 unsigned int pipe; 1334 int err, size; 1335 1336 BT_DBG("%s", hdev->name); 1337 1338 if (!data->intr_ep) 1339 return -ENODEV; 1340 1341 urb = usb_alloc_urb(0, mem_flags); 1342 if (!urb) 1343 return -ENOMEM; 1344 1345 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1346 1347 buf = kmalloc(size, mem_flags); 1348 if (!buf) { 1349 usb_free_urb(urb); 1350 return -ENOMEM; 1351 } 1352 1353 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1354 1355 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1356 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1357 1358 urb->transfer_flags |= URB_FREE_BUFFER; 1359 1360 usb_anchor_urb(urb, &data->intr_anchor); 1361 1362 err = usb_submit_urb(urb, mem_flags); 1363 if (err < 0) { 1364 if (err != -EPERM && err != -ENODEV) 1365 bt_dev_err(hdev, "urb %p submission failed (%d)", 1366 urb, -err); 1367 if (err != -EPERM) 1368 hci_cmd_sync_cancel(hdev, -err); 1369 usb_unanchor_urb(urb); 1370 } 1371 1372 /* Only initialize intr_interval if URB poll sync is enabled */ 1373 if (!data->poll_sync) 1374 goto done; 1375 1376 /* The units are frames (milliseconds) for full and low speed devices, 1377 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1378 * devices. 1379 * 1380 * This is done once on open/resume so it shouldn't change even if 1381 * force_poll_sync changes. 1382 */ 1383 switch (urb->dev->speed) { 1384 case USB_SPEED_SUPER_PLUS: 1385 case USB_SPEED_SUPER: /* units are 125us */ 1386 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1387 break; 1388 default: 1389 data->intr_interval = msecs_to_jiffies(urb->interval); 1390 break; 1391 } 1392 1393 done: 1394 usb_free_urb(urb); 1395 1396 return err; 1397 } 1398 1399 static void btusb_bulk_complete(struct urb *urb) 1400 { 1401 struct hci_dev *hdev = urb->context; 1402 struct btusb_data *data = hci_get_drvdata(hdev); 1403 int err; 1404 1405 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1406 urb->actual_length); 1407 1408 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1409 return; 1410 1411 if (urb->status == 0) { 1412 hdev->stat.byte_rx += urb->actual_length; 1413 1414 if (data->recv_bulk(data, urb->transfer_buffer, 1415 urb->actual_length) < 0) { 1416 bt_dev_err(hdev, "corrupted ACL packet"); 1417 hdev->stat.err_rx++; 1418 } 1419 } else if (urb->status == -ENOENT) { 1420 /* Avoid suspend failed when usb_kill_urb */ 1421 return; 1422 } 1423 1424 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1425 return; 1426 1427 usb_anchor_urb(urb, &data->bulk_anchor); 1428 usb_mark_last_busy(data->udev); 1429 1430 err = usb_submit_urb(urb, GFP_ATOMIC); 1431 if (err < 0) { 1432 /* -EPERM: urb is being killed; 1433 * -ENODEV: device got disconnected 1434 */ 1435 if (err != -EPERM && err != -ENODEV) 1436 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1437 urb, -err); 1438 usb_unanchor_urb(urb); 1439 } 1440 } 1441 1442 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1443 { 1444 struct btusb_data *data = hci_get_drvdata(hdev); 1445 struct urb *urb; 1446 unsigned char *buf; 1447 unsigned int pipe; 1448 int err, size = HCI_MAX_FRAME_SIZE; 1449 1450 BT_DBG("%s", hdev->name); 1451 1452 if (!data->bulk_rx_ep) 1453 return -ENODEV; 1454 1455 urb = usb_alloc_urb(0, mem_flags); 1456 if (!urb) 1457 return -ENOMEM; 1458 1459 buf = kmalloc(size, mem_flags); 1460 if (!buf) { 1461 usb_free_urb(urb); 1462 return -ENOMEM; 1463 } 1464 1465 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1466 1467 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1468 btusb_bulk_complete, hdev); 1469 1470 urb->transfer_flags |= URB_FREE_BUFFER; 1471 1472 usb_mark_last_busy(data->udev); 1473 usb_anchor_urb(urb, &data->bulk_anchor); 1474 1475 err = usb_submit_urb(urb, mem_flags); 1476 if (err < 0) { 1477 if (err != -EPERM && err != -ENODEV) 1478 bt_dev_err(hdev, "urb %p submission failed (%d)", 1479 urb, -err); 1480 usb_unanchor_urb(urb); 1481 } 1482 1483 usb_free_urb(urb); 1484 1485 return err; 1486 } 1487 1488 static void btusb_isoc_complete(struct urb *urb) 1489 { 1490 struct hci_dev *hdev = urb->context; 1491 struct btusb_data *data = hci_get_drvdata(hdev); 1492 int i, err; 1493 1494 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1495 urb->actual_length); 1496 1497 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1498 return; 1499 1500 if (urb->status == 0) { 1501 for (i = 0; i < urb->number_of_packets; i++) { 1502 unsigned int offset = urb->iso_frame_desc[i].offset; 1503 unsigned int length = urb->iso_frame_desc[i].actual_length; 1504 1505 if (urb->iso_frame_desc[i].status) 1506 continue; 1507 1508 hdev->stat.byte_rx += length; 1509 1510 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1511 length) < 0) { 1512 bt_dev_err(hdev, "corrupted SCO packet"); 1513 hdev->stat.err_rx++; 1514 } 1515 } 1516 } else if (urb->status == -ENOENT) { 1517 /* Avoid suspend failed when usb_kill_urb */ 1518 return; 1519 } 1520 1521 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1522 return; 1523 1524 usb_anchor_urb(urb, &data->isoc_anchor); 1525 1526 err = usb_submit_urb(urb, GFP_ATOMIC); 1527 if (err < 0) { 1528 /* -EPERM: urb is being killed; 1529 * -ENODEV: device got disconnected 1530 */ 1531 if (err != -EPERM && err != -ENODEV) 1532 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1533 urb, -err); 1534 usb_unanchor_urb(urb); 1535 } 1536 } 1537 1538 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1539 int mtu, struct btusb_data *data) 1540 { 1541 int i = 0, offset = 0; 1542 unsigned int interval; 1543 1544 BT_DBG("len %d mtu %d", len, mtu); 1545 1546 /* For mSBC ALT 6 settings some chips need to transmit the data 1547 * continuously without the zero length of USB packets. 1548 */ 1549 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1550 goto ignore_usb_alt6_packet_flow; 1551 1552 /* For mSBC ALT 6 setting the host will send the packet at continuous 1553 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1554 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1555 * To maintain the rate we send 63bytes of usb packets alternatively for 1556 * 7ms and 8ms to maintain the rate as 7.5ms. 1557 */ 1558 if (data->usb_alt6_packet_flow) { 1559 interval = 7; 1560 data->usb_alt6_packet_flow = false; 1561 } else { 1562 interval = 6; 1563 data->usb_alt6_packet_flow = true; 1564 } 1565 1566 for (i = 0; i < interval; i++) { 1567 urb->iso_frame_desc[i].offset = offset; 1568 urb->iso_frame_desc[i].length = offset; 1569 } 1570 1571 ignore_usb_alt6_packet_flow: 1572 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1573 urb->iso_frame_desc[i].offset = offset; 1574 urb->iso_frame_desc[i].length = len; 1575 i++; 1576 } 1577 1578 urb->number_of_packets = i; 1579 } 1580 1581 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1582 { 1583 int i, offset = 0; 1584 1585 BT_DBG("len %d mtu %d", len, mtu); 1586 1587 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1588 i++, offset += mtu, len -= mtu) { 1589 urb->iso_frame_desc[i].offset = offset; 1590 urb->iso_frame_desc[i].length = mtu; 1591 } 1592 1593 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1594 urb->iso_frame_desc[i].offset = offset; 1595 urb->iso_frame_desc[i].length = len; 1596 i++; 1597 } 1598 1599 urb->number_of_packets = i; 1600 } 1601 1602 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1603 { 1604 struct btusb_data *data = hci_get_drvdata(hdev); 1605 struct urb *urb; 1606 unsigned char *buf; 1607 unsigned int pipe; 1608 int err, size; 1609 1610 BT_DBG("%s", hdev->name); 1611 1612 if (!data->isoc_rx_ep) 1613 return -ENODEV; 1614 1615 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1616 if (!urb) 1617 return -ENOMEM; 1618 1619 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1620 BTUSB_MAX_ISOC_FRAMES; 1621 1622 buf = kmalloc(size, mem_flags); 1623 if (!buf) { 1624 usb_free_urb(urb); 1625 return -ENOMEM; 1626 } 1627 1628 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1629 1630 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1631 hdev, data->isoc_rx_ep->bInterval); 1632 1633 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1634 1635 __fill_isoc_descriptor(urb, size, 1636 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1637 1638 usb_anchor_urb(urb, &data->isoc_anchor); 1639 1640 err = usb_submit_urb(urb, mem_flags); 1641 if (err < 0) { 1642 if (err != -EPERM && err != -ENODEV) 1643 bt_dev_err(hdev, "urb %p submission failed (%d)", 1644 urb, -err); 1645 usb_unanchor_urb(urb); 1646 } 1647 1648 usb_free_urb(urb); 1649 1650 return err; 1651 } 1652 1653 static void btusb_diag_complete(struct urb *urb) 1654 { 1655 struct hci_dev *hdev = urb->context; 1656 struct btusb_data *data = hci_get_drvdata(hdev); 1657 int err; 1658 1659 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1660 urb->actual_length); 1661 1662 if (urb->status == 0) { 1663 struct sk_buff *skb; 1664 1665 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1666 if (skb) { 1667 skb_put_data(skb, urb->transfer_buffer, 1668 urb->actual_length); 1669 hci_recv_diag(hdev, skb); 1670 } 1671 } else if (urb->status == -ENOENT) { 1672 /* Avoid suspend failed when usb_kill_urb */ 1673 return; 1674 } 1675 1676 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1677 return; 1678 1679 usb_anchor_urb(urb, &data->diag_anchor); 1680 usb_mark_last_busy(data->udev); 1681 1682 err = usb_submit_urb(urb, GFP_ATOMIC); 1683 if (err < 0) { 1684 /* -EPERM: urb is being killed; 1685 * -ENODEV: device got disconnected 1686 */ 1687 if (err != -EPERM && err != -ENODEV) 1688 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1689 urb, -err); 1690 usb_unanchor_urb(urb); 1691 } 1692 } 1693 1694 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1695 { 1696 struct btusb_data *data = hci_get_drvdata(hdev); 1697 struct urb *urb; 1698 unsigned char *buf; 1699 unsigned int pipe; 1700 int err, size = HCI_MAX_FRAME_SIZE; 1701 1702 BT_DBG("%s", hdev->name); 1703 1704 if (!data->diag_rx_ep) 1705 return -ENODEV; 1706 1707 urb = usb_alloc_urb(0, mem_flags); 1708 if (!urb) 1709 return -ENOMEM; 1710 1711 buf = kmalloc(size, mem_flags); 1712 if (!buf) { 1713 usb_free_urb(urb); 1714 return -ENOMEM; 1715 } 1716 1717 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1718 1719 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1720 btusb_diag_complete, hdev); 1721 1722 urb->transfer_flags |= URB_FREE_BUFFER; 1723 1724 usb_mark_last_busy(data->udev); 1725 usb_anchor_urb(urb, &data->diag_anchor); 1726 1727 err = usb_submit_urb(urb, mem_flags); 1728 if (err < 0) { 1729 if (err != -EPERM && err != -ENODEV) 1730 bt_dev_err(hdev, "urb %p submission failed (%d)", 1731 urb, -err); 1732 usb_unanchor_urb(urb); 1733 } 1734 1735 usb_free_urb(urb); 1736 1737 return err; 1738 } 1739 1740 static void btusb_tx_complete(struct urb *urb) 1741 { 1742 struct sk_buff *skb = urb->context; 1743 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1744 struct btusb_data *data = hci_get_drvdata(hdev); 1745 unsigned long flags; 1746 1747 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1748 urb->actual_length); 1749 1750 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1751 goto done; 1752 1753 if (!urb->status) { 1754 hdev->stat.byte_tx += urb->transfer_buffer_length; 1755 } else { 1756 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1757 hci_cmd_sync_cancel(hdev, -urb->status); 1758 hdev->stat.err_tx++; 1759 } 1760 1761 done: 1762 spin_lock_irqsave(&data->txlock, flags); 1763 data->tx_in_flight--; 1764 spin_unlock_irqrestore(&data->txlock, flags); 1765 1766 kfree(urb->setup_packet); 1767 1768 kfree_skb(skb); 1769 } 1770 1771 static void btusb_isoc_tx_complete(struct urb *urb) 1772 { 1773 struct sk_buff *skb = urb->context; 1774 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1775 1776 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1777 urb->actual_length); 1778 1779 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1780 goto done; 1781 1782 if (!urb->status) 1783 hdev->stat.byte_tx += urb->transfer_buffer_length; 1784 else 1785 hdev->stat.err_tx++; 1786 1787 done: 1788 kfree(urb->setup_packet); 1789 1790 kfree_skb(skb); 1791 } 1792 1793 static int btusb_open(struct hci_dev *hdev) 1794 { 1795 struct btusb_data *data = hci_get_drvdata(hdev); 1796 int err; 1797 1798 BT_DBG("%s", hdev->name); 1799 1800 err = usb_autopm_get_interface(data->intf); 1801 if (err < 0) 1802 return err; 1803 1804 /* Patching USB firmware files prior to starting any URBs of HCI path 1805 * It is more safe to use USB bulk channel for downloading USB patch 1806 */ 1807 if (data->setup_on_usb) { 1808 err = data->setup_on_usb(hdev); 1809 if (err < 0) 1810 goto setup_fail; 1811 } 1812 1813 data->intf->needs_remote_wakeup = 1; 1814 1815 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1816 goto done; 1817 1818 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1819 if (err < 0) 1820 goto failed; 1821 1822 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1823 if (err < 0) { 1824 usb_kill_anchored_urbs(&data->intr_anchor); 1825 goto failed; 1826 } 1827 1828 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1829 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1830 1831 if (data->diag) { 1832 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1833 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1834 } 1835 1836 done: 1837 usb_autopm_put_interface(data->intf); 1838 return 0; 1839 1840 failed: 1841 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1842 setup_fail: 1843 usb_autopm_put_interface(data->intf); 1844 return err; 1845 } 1846 1847 static void btusb_stop_traffic(struct btusb_data *data) 1848 { 1849 usb_kill_anchored_urbs(&data->intr_anchor); 1850 usb_kill_anchored_urbs(&data->bulk_anchor); 1851 usb_kill_anchored_urbs(&data->isoc_anchor); 1852 usb_kill_anchored_urbs(&data->diag_anchor); 1853 usb_kill_anchored_urbs(&data->ctrl_anchor); 1854 } 1855 1856 static int btusb_close(struct hci_dev *hdev) 1857 { 1858 struct btusb_data *data = hci_get_drvdata(hdev); 1859 int err; 1860 1861 BT_DBG("%s", hdev->name); 1862 1863 cancel_delayed_work(&data->rx_work); 1864 cancel_work_sync(&data->work); 1865 cancel_work_sync(&data->waker); 1866 1867 skb_queue_purge(&data->acl_q); 1868 1869 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1870 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1871 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1872 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1873 1874 btusb_stop_traffic(data); 1875 btusb_free_frags(data); 1876 1877 err = usb_autopm_get_interface(data->intf); 1878 if (err < 0) 1879 goto failed; 1880 1881 data->intf->needs_remote_wakeup = 0; 1882 1883 /* Enable remote wake up for auto-suspend */ 1884 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1885 data->intf->needs_remote_wakeup = 1; 1886 1887 usb_autopm_put_interface(data->intf); 1888 1889 failed: 1890 usb_scuttle_anchored_urbs(&data->deferred); 1891 return 0; 1892 } 1893 1894 static int btusb_flush(struct hci_dev *hdev) 1895 { 1896 struct btusb_data *data = hci_get_drvdata(hdev); 1897 1898 BT_DBG("%s", hdev->name); 1899 1900 cancel_delayed_work(&data->rx_work); 1901 1902 skb_queue_purge(&data->acl_q); 1903 1904 usb_kill_anchored_urbs(&data->tx_anchor); 1905 btusb_free_frags(data); 1906 1907 return 0; 1908 } 1909 1910 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1911 { 1912 struct btusb_data *data = hci_get_drvdata(hdev); 1913 struct usb_ctrlrequest *dr; 1914 struct urb *urb; 1915 unsigned int pipe; 1916 1917 urb = usb_alloc_urb(0, GFP_KERNEL); 1918 if (!urb) 1919 return ERR_PTR(-ENOMEM); 1920 1921 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1922 if (!dr) { 1923 usb_free_urb(urb); 1924 return ERR_PTR(-ENOMEM); 1925 } 1926 1927 dr->bRequestType = data->cmdreq_type; 1928 dr->bRequest = data->cmdreq; 1929 dr->wIndex = 0; 1930 dr->wValue = 0; 1931 dr->wLength = __cpu_to_le16(skb->len); 1932 1933 pipe = usb_sndctrlpipe(data->udev, 0x00); 1934 1935 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1936 skb->data, skb->len, btusb_tx_complete, skb); 1937 1938 skb->dev = (void *)hdev; 1939 1940 return urb; 1941 } 1942 1943 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1944 { 1945 struct btusb_data *data = hci_get_drvdata(hdev); 1946 struct urb *urb; 1947 unsigned int pipe; 1948 1949 if (!data->bulk_tx_ep) 1950 return ERR_PTR(-ENODEV); 1951 1952 urb = usb_alloc_urb(0, GFP_KERNEL); 1953 if (!urb) 1954 return ERR_PTR(-ENOMEM); 1955 1956 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1957 1958 usb_fill_bulk_urb(urb, data->udev, pipe, 1959 skb->data, skb->len, btusb_tx_complete, skb); 1960 1961 skb->dev = (void *)hdev; 1962 1963 return urb; 1964 } 1965 1966 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1967 { 1968 struct btusb_data *data = hci_get_drvdata(hdev); 1969 struct urb *urb; 1970 unsigned int pipe; 1971 1972 if (!data->isoc_tx_ep) 1973 return ERR_PTR(-ENODEV); 1974 1975 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1976 if (!urb) 1977 return ERR_PTR(-ENOMEM); 1978 1979 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1980 1981 usb_fill_int_urb(urb, data->udev, pipe, 1982 skb->data, skb->len, btusb_isoc_tx_complete, 1983 skb, data->isoc_tx_ep->bInterval); 1984 1985 urb->transfer_flags = URB_ISO_ASAP; 1986 1987 if (data->isoc_altsetting == 6) 1988 __fill_isoc_descriptor_msbc(urb, skb->len, 1989 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 1990 data); 1991 else 1992 __fill_isoc_descriptor(urb, skb->len, 1993 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1994 skb->dev = (void *)hdev; 1995 1996 return urb; 1997 } 1998 1999 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2000 { 2001 struct btusb_data *data = hci_get_drvdata(hdev); 2002 int err; 2003 2004 usb_anchor_urb(urb, &data->tx_anchor); 2005 2006 err = usb_submit_urb(urb, GFP_KERNEL); 2007 if (err < 0) { 2008 if (err != -EPERM && err != -ENODEV) 2009 bt_dev_err(hdev, "urb %p submission failed (%d)", 2010 urb, -err); 2011 kfree(urb->setup_packet); 2012 usb_unanchor_urb(urb); 2013 } else { 2014 usb_mark_last_busy(data->udev); 2015 } 2016 2017 usb_free_urb(urb); 2018 return err; 2019 } 2020 2021 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2022 { 2023 struct btusb_data *data = hci_get_drvdata(hdev); 2024 unsigned long flags; 2025 bool suspending; 2026 2027 spin_lock_irqsave(&data->txlock, flags); 2028 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2029 if (!suspending) 2030 data->tx_in_flight++; 2031 spin_unlock_irqrestore(&data->txlock, flags); 2032 2033 if (!suspending) 2034 return submit_tx_urb(hdev, urb); 2035 2036 usb_anchor_urb(urb, &data->deferred); 2037 schedule_work(&data->waker); 2038 2039 usb_free_urb(urb); 2040 return 0; 2041 } 2042 2043 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2044 { 2045 struct urb *urb; 2046 2047 BT_DBG("%s", hdev->name); 2048 2049 switch (hci_skb_pkt_type(skb)) { 2050 case HCI_COMMAND_PKT: 2051 urb = alloc_ctrl_urb(hdev, skb); 2052 if (IS_ERR(urb)) 2053 return PTR_ERR(urb); 2054 2055 hdev->stat.cmd_tx++; 2056 return submit_or_queue_tx_urb(hdev, urb); 2057 2058 case HCI_ACLDATA_PKT: 2059 urb = alloc_bulk_urb(hdev, skb); 2060 if (IS_ERR(urb)) 2061 return PTR_ERR(urb); 2062 2063 hdev->stat.acl_tx++; 2064 return submit_or_queue_tx_urb(hdev, urb); 2065 2066 case HCI_SCODATA_PKT: 2067 if (hci_conn_num(hdev, SCO_LINK) < 1) 2068 return -ENODEV; 2069 2070 urb = alloc_isoc_urb(hdev, skb); 2071 if (IS_ERR(urb)) 2072 return PTR_ERR(urb); 2073 2074 hdev->stat.sco_tx++; 2075 return submit_tx_urb(hdev, urb); 2076 2077 case HCI_ISODATA_PKT: 2078 urb = alloc_bulk_urb(hdev, skb); 2079 if (IS_ERR(urb)) 2080 return PTR_ERR(urb); 2081 2082 return submit_or_queue_tx_urb(hdev, urb); 2083 } 2084 2085 return -EILSEQ; 2086 } 2087 2088 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2089 { 2090 struct btusb_data *data = hci_get_drvdata(hdev); 2091 2092 BT_DBG("%s evt %d", hdev->name, evt); 2093 2094 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2095 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2096 data->air_mode = evt; 2097 schedule_work(&data->work); 2098 } 2099 } 2100 2101 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2102 { 2103 struct btusb_data *data = hci_get_drvdata(hdev); 2104 struct usb_interface *intf = data->isoc; 2105 struct usb_endpoint_descriptor *ep_desc; 2106 int i, err; 2107 2108 if (!data->isoc) 2109 return -ENODEV; 2110 2111 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2112 if (err < 0) { 2113 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2114 return err; 2115 } 2116 2117 data->isoc_altsetting = altsetting; 2118 2119 data->isoc_tx_ep = NULL; 2120 data->isoc_rx_ep = NULL; 2121 2122 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2123 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2124 2125 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2126 data->isoc_tx_ep = ep_desc; 2127 continue; 2128 } 2129 2130 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2131 data->isoc_rx_ep = ep_desc; 2132 continue; 2133 } 2134 } 2135 2136 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2137 bt_dev_err(hdev, "invalid SCO descriptors"); 2138 return -ENODEV; 2139 } 2140 2141 return 0; 2142 } 2143 2144 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2145 { 2146 struct btusb_data *data = hci_get_drvdata(hdev); 2147 int err; 2148 2149 if (data->isoc_altsetting != new_alts) { 2150 unsigned long flags; 2151 2152 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2153 usb_kill_anchored_urbs(&data->isoc_anchor); 2154 2155 /* When isochronous alternate setting needs to be 2156 * changed, because SCO connection has been added 2157 * or removed, a packet fragment may be left in the 2158 * reassembling state. This could lead to wrongly 2159 * assembled fragments. 2160 * 2161 * Clear outstanding fragment when selecting a new 2162 * alternate setting. 2163 */ 2164 spin_lock_irqsave(&data->rxlock, flags); 2165 dev_kfree_skb_irq(data->sco_skb); 2166 data->sco_skb = NULL; 2167 spin_unlock_irqrestore(&data->rxlock, flags); 2168 2169 err = __set_isoc_interface(hdev, new_alts); 2170 if (err < 0) 2171 return err; 2172 } 2173 2174 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2175 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2176 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2177 else 2178 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2179 } 2180 2181 return 0; 2182 } 2183 2184 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2185 int alt) 2186 { 2187 struct usb_interface *intf = data->isoc; 2188 int i; 2189 2190 BT_DBG("Looking for Alt no :%d", alt); 2191 2192 if (!intf) 2193 return NULL; 2194 2195 for (i = 0; i < intf->num_altsetting; i++) { 2196 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2197 return &intf->altsetting[i]; 2198 } 2199 2200 return NULL; 2201 } 2202 2203 static void btusb_work(struct work_struct *work) 2204 { 2205 struct btusb_data *data = container_of(work, struct btusb_data, work); 2206 struct hci_dev *hdev = data->hdev; 2207 int new_alts = 0; 2208 int err; 2209 2210 if (data->sco_num > 0) { 2211 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2212 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2213 if (err < 0) { 2214 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2215 usb_kill_anchored_urbs(&data->isoc_anchor); 2216 return; 2217 } 2218 2219 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2220 } 2221 2222 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2223 if (hdev->voice_setting & 0x0020) { 2224 static const int alts[3] = { 2, 4, 5 }; 2225 2226 new_alts = alts[data->sco_num - 1]; 2227 } else { 2228 new_alts = data->sco_num; 2229 } 2230 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2231 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2232 * many adapters do not support it. Alt 1 appears to 2233 * work for all adapters that do not have alt 6, and 2234 * which work with WBS at all. Some devices prefer 2235 * alt 3 (HCI payload >= 60 Bytes let air packet 2236 * data satisfy 60 bytes), requiring 2237 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2238 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2239 */ 2240 if (btusb_find_altsetting(data, 6)) 2241 new_alts = 6; 2242 else if (btusb_find_altsetting(data, 3) && 2243 hdev->sco_mtu >= 72 && 2244 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2245 new_alts = 3; 2246 else 2247 new_alts = 1; 2248 } 2249 2250 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2251 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2252 } else { 2253 usb_kill_anchored_urbs(&data->isoc_anchor); 2254 2255 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2256 __set_isoc_interface(hdev, 0); 2257 2258 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2259 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2260 } 2261 } 2262 2263 static void btusb_waker(struct work_struct *work) 2264 { 2265 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2266 int err; 2267 2268 err = usb_autopm_get_interface(data->intf); 2269 if (err < 0) 2270 return; 2271 2272 usb_autopm_put_interface(data->intf); 2273 } 2274 2275 static void btusb_rx_work(struct work_struct *work) 2276 { 2277 struct btusb_data *data = container_of(work, struct btusb_data, 2278 rx_work.work); 2279 struct sk_buff *skb; 2280 2281 /* Dequeue ACL data received during the interval */ 2282 while ((skb = skb_dequeue(&data->acl_q))) 2283 data->recv_acl(data->hdev, skb); 2284 } 2285 2286 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2287 { 2288 struct sk_buff *skb; 2289 u8 val = 0x00; 2290 2291 BT_DBG("%s", hdev->name); 2292 2293 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2294 if (IS_ERR(skb)) 2295 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2296 else 2297 kfree_skb(skb); 2298 2299 return 0; 2300 } 2301 2302 static int btusb_setup_csr(struct hci_dev *hdev) 2303 { 2304 struct btusb_data *data = hci_get_drvdata(hdev); 2305 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2306 struct hci_rp_read_local_version *rp; 2307 struct sk_buff *skb; 2308 bool is_fake = false; 2309 int ret; 2310 2311 BT_DBG("%s", hdev->name); 2312 2313 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2314 HCI_INIT_TIMEOUT); 2315 if (IS_ERR(skb)) { 2316 int err = PTR_ERR(skb); 2317 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2318 return err; 2319 } 2320 2321 rp = skb_pull_data(skb, sizeof(*rp)); 2322 if (!rp) { 2323 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2324 kfree_skb(skb); 2325 return -EIO; 2326 } 2327 2328 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2329 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2330 2331 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2332 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2333 le16_to_cpu(rp->manufacturer)); 2334 2335 /* Detect a wide host of Chinese controllers that aren't CSR. 2336 * 2337 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2338 * 2339 * The main thing they have in common is that these are really popular low-cost 2340 * options that support newer Bluetooth versions but rely on heavy VID/PID 2341 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2342 * 2343 * We detect actual CSR devices by checking that the HCI manufacturer code 2344 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2345 * HCI rev values always match. As they both store the firmware number. 2346 */ 2347 if (le16_to_cpu(rp->manufacturer) != 10 || 2348 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2349 is_fake = true; 2350 2351 /* Known legit CSR firmware build numbers and their supported BT versions: 2352 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2353 * - 1.2 (0x2) -> 0x04d9, 0x0529 2354 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2355 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2356 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2357 * 2358 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2359 * support BT 1.1 only; so it's a dead giveaway when some 2360 * third-party BT 4.0 dongle reuses it. 2361 */ 2362 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2363 rp->hci_ver > BLUETOOTH_VER_1_1) 2364 is_fake = true; 2365 2366 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2367 rp->hci_ver > BLUETOOTH_VER_1_2) 2368 is_fake = true; 2369 2370 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2371 rp->hci_ver > BLUETOOTH_VER_2_0) 2372 is_fake = true; 2373 2374 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2375 rp->hci_ver > BLUETOOTH_VER_2_1) 2376 is_fake = true; 2377 2378 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2379 rp->hci_ver > BLUETOOTH_VER_4_0) 2380 is_fake = true; 2381 2382 /* Other clones which beat all the above checks */ 2383 else if (bcdDevice == 0x0134 && 2384 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2385 rp->hci_ver == BLUETOOTH_VER_2_0) 2386 is_fake = true; 2387 2388 if (is_fake) { 2389 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2390 2391 /* Generally these clones have big discrepancies between 2392 * advertised features and what's actually supported. 2393 * Probably will need to be expanded in the future; 2394 * without these the controller will lock up. 2395 */ 2396 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2397 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2398 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2399 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2400 2401 /* Clear the reset quirk since this is not an actual 2402 * early Bluetooth 1.1 device from CSR. 2403 */ 2404 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2405 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2406 2407 /* 2408 * Special workaround for these BT 4.0 chip clones, and potentially more: 2409 * 2410 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2411 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2412 * 2413 * These controllers are really messed-up. 2414 * 2415 * 1. Their bulk RX endpoint will never report any data unless 2416 * the device was suspended at least once (yes, really). 2417 * 2. They will not wakeup when autosuspended and receiving data 2418 * on their bulk RX endpoint from e.g. a keyboard or mouse 2419 * (IOW remote-wakeup support is broken for the bulk endpoint). 2420 * 2421 * To fix 1. enable runtime-suspend, force-suspend the 2422 * HCI and then wake-it up by disabling runtime-suspend. 2423 * 2424 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2425 * will still be autosuspended when it is not open. 2426 * 2427 * -- 2428 * 2429 * Because these are widespread problems we prefer generic solutions; so 2430 * apply this initialization quirk to every controller that gets here, 2431 * it should be harmless. The alternative is to not work at all. 2432 */ 2433 pm_runtime_allow(&data->udev->dev); 2434 2435 ret = pm_runtime_suspend(&data->udev->dev); 2436 if (ret >= 0) 2437 msleep(200); 2438 else 2439 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2440 2441 pm_runtime_forbid(&data->udev->dev); 2442 2443 device_set_wakeup_capable(&data->udev->dev, false); 2444 2445 /* Re-enable autosuspend if this was requested */ 2446 if (enable_autosuspend) 2447 usb_enable_autosuspend(data->udev); 2448 } 2449 2450 kfree_skb(skb); 2451 2452 return 0; 2453 } 2454 2455 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2456 { 2457 struct sk_buff *skb; 2458 struct hci_event_hdr *hdr; 2459 struct hci_ev_cmd_complete *evt; 2460 2461 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2462 if (!skb) 2463 return -ENOMEM; 2464 2465 hdr = skb_put(skb, sizeof(*hdr)); 2466 hdr->evt = HCI_EV_CMD_COMPLETE; 2467 hdr->plen = sizeof(*evt) + 1; 2468 2469 evt = skb_put(skb, sizeof(*evt)); 2470 evt->ncmd = 0x01; 2471 evt->opcode = cpu_to_le16(opcode); 2472 2473 skb_put_u8(skb, 0x00); 2474 2475 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2476 2477 return hci_recv_frame(hdev, skb); 2478 } 2479 2480 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2481 int count) 2482 { 2483 struct hci_dev *hdev = data->hdev; 2484 2485 /* When the device is in bootloader mode, then it can send 2486 * events via the bulk endpoint. These events are treated the 2487 * same way as the ones received from the interrupt endpoint. 2488 */ 2489 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2490 return btusb_recv_intr(data, buffer, count); 2491 2492 return btusb_recv_bulk(data, buffer, count); 2493 } 2494 2495 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2496 { 2497 struct urb *urb; 2498 2499 BT_DBG("%s", hdev->name); 2500 2501 switch (hci_skb_pkt_type(skb)) { 2502 case HCI_COMMAND_PKT: 2503 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2504 struct hci_command_hdr *cmd = (void *)skb->data; 2505 __u16 opcode = le16_to_cpu(cmd->opcode); 2506 2507 /* When in bootloader mode and the command 0xfc09 2508 * is received, it needs to be send down the 2509 * bulk endpoint. So allocate a bulk URB instead. 2510 */ 2511 if (opcode == 0xfc09) 2512 urb = alloc_bulk_urb(hdev, skb); 2513 else 2514 urb = alloc_ctrl_urb(hdev, skb); 2515 2516 /* When the 0xfc01 command is issued to boot into 2517 * the operational firmware, it will actually not 2518 * send a command complete event. To keep the flow 2519 * control working inject that event here. 2520 */ 2521 if (opcode == 0xfc01) 2522 inject_cmd_complete(hdev, opcode); 2523 } else { 2524 urb = alloc_ctrl_urb(hdev, skb); 2525 } 2526 if (IS_ERR(urb)) 2527 return PTR_ERR(urb); 2528 2529 hdev->stat.cmd_tx++; 2530 return submit_or_queue_tx_urb(hdev, urb); 2531 2532 case HCI_ACLDATA_PKT: 2533 urb = alloc_bulk_urb(hdev, skb); 2534 if (IS_ERR(urb)) 2535 return PTR_ERR(urb); 2536 2537 hdev->stat.acl_tx++; 2538 return submit_or_queue_tx_urb(hdev, urb); 2539 2540 case HCI_SCODATA_PKT: 2541 if (hci_conn_num(hdev, SCO_LINK) < 1) 2542 return -ENODEV; 2543 2544 urb = alloc_isoc_urb(hdev, skb); 2545 if (IS_ERR(urb)) 2546 return PTR_ERR(urb); 2547 2548 hdev->stat.sco_tx++; 2549 return submit_tx_urb(hdev, urb); 2550 2551 case HCI_ISODATA_PKT: 2552 urb = alloc_bulk_urb(hdev, skb); 2553 if (IS_ERR(urb)) 2554 return PTR_ERR(urb); 2555 2556 return submit_or_queue_tx_urb(hdev, urb); 2557 } 2558 2559 return -EILSEQ; 2560 } 2561 2562 static int btusb_setup_realtek(struct hci_dev *hdev) 2563 { 2564 struct btusb_data *data = hci_get_drvdata(hdev); 2565 int ret; 2566 2567 ret = btrtl_setup_realtek(hdev); 2568 2569 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2570 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2571 2572 return ret; 2573 } 2574 2575 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2576 { 2577 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2578 struct rtk_dev_coredump_hdr hdr = { 2579 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2580 }; 2581 2582 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2583 skb->len); 2584 2585 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2586 kfree_skb(skb); 2587 2588 return 0; 2589 } 2590 2591 return hci_recv_frame(hdev, skb); 2592 } 2593 2594 /* UHW CR mapping */ 2595 #define MTK_BT_MISC 0x70002510 2596 #define MTK_BT_SUBSYS_RST 0x70002610 2597 #define MTK_UDMA_INT_STA_BT 0x74000024 2598 #define MTK_UDMA_INT_STA_BT1 0x74000308 2599 #define MTK_BT_WDT_STATUS 0x740003A0 2600 #define MTK_EP_RST_OPT 0x74011890 2601 #define MTK_EP_RST_IN_OUT_OPT 0x00010001 2602 #define MTK_BT_RST_DONE 0x00000100 2603 #define MTK_BT_RESET_REG_CONNV3 0x70028610 2604 #define MTK_BT_READ_DEV_ID 0x70010200 2605 2606 2607 static void btusb_mtk_wmt_recv(struct urb *urb) 2608 { 2609 struct hci_dev *hdev = urb->context; 2610 struct btusb_data *data = hci_get_drvdata(hdev); 2611 struct sk_buff *skb; 2612 int err; 2613 2614 if (urb->status == 0 && urb->actual_length > 0) { 2615 hdev->stat.byte_rx += urb->actual_length; 2616 2617 /* WMT event shouldn't be fragmented and the size should be 2618 * less than HCI_WMT_MAX_EVENT_SIZE. 2619 */ 2620 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC); 2621 if (!skb) { 2622 hdev->stat.err_rx++; 2623 kfree(urb->setup_packet); 2624 return; 2625 } 2626 2627 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2628 skb_put_data(skb, urb->transfer_buffer, urb->actual_length); 2629 2630 /* When someone waits for the WMT event, the skb is being cloned 2631 * and being processed the events from there then. 2632 */ 2633 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) { 2634 data->evt_skb = skb_clone(skb, GFP_ATOMIC); 2635 if (!data->evt_skb) { 2636 kfree_skb(skb); 2637 kfree(urb->setup_packet); 2638 return; 2639 } 2640 } 2641 2642 err = hci_recv_frame(hdev, skb); 2643 if (err < 0) { 2644 kfree_skb(data->evt_skb); 2645 data->evt_skb = NULL; 2646 kfree(urb->setup_packet); 2647 return; 2648 } 2649 2650 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT, 2651 &data->flags)) { 2652 /* Barrier to sync with other CPUs */ 2653 smp_mb__after_atomic(); 2654 wake_up_bit(&data->flags, 2655 BTUSB_TX_WAIT_VND_EVT); 2656 } 2657 kfree(urb->setup_packet); 2658 return; 2659 } else if (urb->status == -ENOENT) { 2660 /* Avoid suspend failed when usb_kill_urb */ 2661 return; 2662 } 2663 2664 usb_mark_last_busy(data->udev); 2665 2666 /* The URB complete handler is still called with urb->actual_length = 0 2667 * when the event is not available, so we should keep re-submitting 2668 * URB until WMT event returns, Also, It's necessary to wait some time 2669 * between the two consecutive control URBs to relax the target device 2670 * to generate the event. Otherwise, the WMT event cannot return from 2671 * the device successfully. 2672 */ 2673 udelay(500); 2674 2675 usb_anchor_urb(urb, &data->ctrl_anchor); 2676 err = usb_submit_urb(urb, GFP_ATOMIC); 2677 if (err < 0) { 2678 kfree(urb->setup_packet); 2679 /* -EPERM: urb is being killed; 2680 * -ENODEV: device got disconnected 2681 */ 2682 if (err != -EPERM && err != -ENODEV) 2683 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2684 urb, -err); 2685 usb_unanchor_urb(urb); 2686 } 2687 } 2688 2689 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev) 2690 { 2691 struct btusb_data *data = hci_get_drvdata(hdev); 2692 struct usb_ctrlrequest *dr; 2693 unsigned char *buf; 2694 int err, size = 64; 2695 unsigned int pipe; 2696 struct urb *urb; 2697 2698 urb = usb_alloc_urb(0, GFP_KERNEL); 2699 if (!urb) 2700 return -ENOMEM; 2701 2702 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2703 if (!dr) { 2704 usb_free_urb(urb); 2705 return -ENOMEM; 2706 } 2707 2708 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN; 2709 dr->bRequest = 1; 2710 dr->wIndex = cpu_to_le16(0); 2711 dr->wValue = cpu_to_le16(48); 2712 dr->wLength = cpu_to_le16(size); 2713 2714 buf = kmalloc(size, GFP_KERNEL); 2715 if (!buf) { 2716 kfree(dr); 2717 usb_free_urb(urb); 2718 return -ENOMEM; 2719 } 2720 2721 pipe = usb_rcvctrlpipe(data->udev, 0); 2722 2723 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2724 buf, size, btusb_mtk_wmt_recv, hdev); 2725 2726 urb->transfer_flags |= URB_FREE_BUFFER; 2727 2728 usb_anchor_urb(urb, &data->ctrl_anchor); 2729 err = usb_submit_urb(urb, GFP_KERNEL); 2730 if (err < 0) { 2731 if (err != -EPERM && err != -ENODEV) 2732 bt_dev_err(hdev, "urb %p submission failed (%d)", 2733 urb, -err); 2734 usb_unanchor_urb(urb); 2735 } 2736 2737 usb_free_urb(urb); 2738 2739 return err; 2740 } 2741 2742 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev, 2743 struct btmtk_hci_wmt_params *wmt_params) 2744 { 2745 struct btusb_data *data = hci_get_drvdata(hdev); 2746 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc; 2747 u32 hlen, status = BTMTK_WMT_INVALID; 2748 struct btmtk_hci_wmt_evt *wmt_evt; 2749 struct btmtk_hci_wmt_cmd *wc; 2750 struct btmtk_wmt_hdr *hdr; 2751 int err; 2752 2753 /* Send the WMT command and wait until the WMT event returns */ 2754 hlen = sizeof(*hdr) + wmt_params->dlen; 2755 if (hlen > 255) 2756 return -EINVAL; 2757 2758 wc = kzalloc(hlen, GFP_KERNEL); 2759 if (!wc) 2760 return -ENOMEM; 2761 2762 hdr = &wc->hdr; 2763 hdr->dir = 1; 2764 hdr->op = wmt_params->op; 2765 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1); 2766 hdr->flag = wmt_params->flag; 2767 memcpy(wc->data, wmt_params->data, wmt_params->dlen); 2768 2769 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2770 2771 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling, 2772 * it needs constantly polling control pipe until the host received the 2773 * WMT event, thus, we should require to specifically acquire PM counter 2774 * on the USB to prevent the interface from entering auto suspended 2775 * while WMT cmd/event in progress. 2776 */ 2777 err = usb_autopm_get_interface(data->intf); 2778 if (err < 0) 2779 goto err_free_wc; 2780 2781 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc); 2782 2783 if (err < 0) { 2784 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2785 usb_autopm_put_interface(data->intf); 2786 goto err_free_wc; 2787 } 2788 2789 /* Submit control IN URB on demand to process the WMT event */ 2790 err = btusb_mtk_submit_wmt_recv_urb(hdev); 2791 2792 usb_autopm_put_interface(data->intf); 2793 2794 if (err < 0) 2795 goto err_free_wc; 2796 2797 /* The vendor specific WMT commands are all answered by a vendor 2798 * specific event and will have the Command Status or Command 2799 * Complete as with usual HCI command flow control. 2800 * 2801 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT 2802 * state to be cleared. The driver specific event receive routine 2803 * will clear that state and with that indicate completion of the 2804 * WMT command. 2805 */ 2806 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT, 2807 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT); 2808 if (err == -EINTR) { 2809 bt_dev_err(hdev, "Execution of wmt command interrupted"); 2810 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2811 goto err_free_wc; 2812 } 2813 2814 if (err) { 2815 bt_dev_err(hdev, "Execution of wmt command timed out"); 2816 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2817 err = -ETIMEDOUT; 2818 goto err_free_wc; 2819 } 2820 2821 if (data->evt_skb == NULL) 2822 goto err_free_wc; 2823 2824 /* Parse and handle the return WMT event */ 2825 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; 2826 if (wmt_evt->whdr.op != hdr->op) { 2827 bt_dev_err(hdev, "Wrong op received %d expected %d", 2828 wmt_evt->whdr.op, hdr->op); 2829 err = -EIO; 2830 goto err_free_skb; 2831 } 2832 2833 switch (wmt_evt->whdr.op) { 2834 case BTMTK_WMT_SEMAPHORE: 2835 if (wmt_evt->whdr.flag == 2) 2836 status = BTMTK_WMT_PATCH_UNDONE; 2837 else 2838 status = BTMTK_WMT_PATCH_DONE; 2839 break; 2840 case BTMTK_WMT_FUNC_CTRL: 2841 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; 2842 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) 2843 status = BTMTK_WMT_ON_DONE; 2844 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) 2845 status = BTMTK_WMT_ON_PROGRESS; 2846 else 2847 status = BTMTK_WMT_ON_UNDONE; 2848 break; 2849 case BTMTK_WMT_PATCH_DWNLD: 2850 if (wmt_evt->whdr.flag == 2) 2851 status = BTMTK_WMT_PATCH_DONE; 2852 else if (wmt_evt->whdr.flag == 1) 2853 status = BTMTK_WMT_PATCH_PROGRESS; 2854 else 2855 status = BTMTK_WMT_PATCH_UNDONE; 2856 break; 2857 } 2858 2859 if (wmt_params->status) 2860 *wmt_params->status = status; 2861 2862 err_free_skb: 2863 kfree_skb(data->evt_skb); 2864 data->evt_skb = NULL; 2865 err_free_wc: 2866 kfree(wc); 2867 return err; 2868 } 2869 2870 static int btusb_mtk_func_query(struct hci_dev *hdev) 2871 { 2872 struct btmtk_hci_wmt_params wmt_params; 2873 int status, err; 2874 u8 param = 0; 2875 2876 /* Query whether the function is enabled */ 2877 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2878 wmt_params.flag = 4; 2879 wmt_params.dlen = sizeof(param); 2880 wmt_params.data = ¶m; 2881 wmt_params.status = &status; 2882 2883 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2884 if (err < 0) { 2885 bt_dev_err(hdev, "Failed to query function status (%d)", err); 2886 return err; 2887 } 2888 2889 return status; 2890 } 2891 2892 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) 2893 { 2894 struct hci_dev *hdev = data->hdev; 2895 int pipe, err; 2896 void *buf; 2897 2898 buf = kzalloc(4, GFP_KERNEL); 2899 if (!buf) 2900 return -ENOMEM; 2901 2902 put_unaligned_le32(val, buf); 2903 2904 pipe = usb_sndctrlpipe(data->udev, 0); 2905 err = usb_control_msg(data->udev, pipe, 0x02, 2906 0x5E, 2907 reg >> 16, reg & 0xffff, 2908 buf, 4, USB_CTRL_SET_TIMEOUT); 2909 if (err < 0) { 2910 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); 2911 goto err_free_buf; 2912 } 2913 2914 err_free_buf: 2915 kfree(buf); 2916 2917 return err; 2918 } 2919 2920 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2921 { 2922 struct hci_dev *hdev = data->hdev; 2923 int pipe, err; 2924 void *buf; 2925 2926 buf = kzalloc(4, GFP_KERNEL); 2927 if (!buf) 2928 return -ENOMEM; 2929 2930 pipe = usb_rcvctrlpipe(data->udev, 0); 2931 err = usb_control_msg(data->udev, pipe, 0x01, 2932 0xDE, 2933 reg >> 16, reg & 0xffff, 2934 buf, 4, USB_CTRL_SET_TIMEOUT); 2935 if (err < 0) { 2936 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); 2937 goto err_free_buf; 2938 } 2939 2940 *val = get_unaligned_le32(buf); 2941 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); 2942 2943 err_free_buf: 2944 kfree(buf); 2945 2946 return err; 2947 } 2948 2949 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2950 { 2951 int pipe, err, size = sizeof(u32); 2952 void *buf; 2953 2954 buf = kzalloc(size, GFP_KERNEL); 2955 if (!buf) 2956 return -ENOMEM; 2957 2958 pipe = usb_rcvctrlpipe(data->udev, 0); 2959 err = usb_control_msg(data->udev, pipe, 0x63, 2960 USB_TYPE_VENDOR | USB_DIR_IN, 2961 reg >> 16, reg & 0xffff, 2962 buf, size, USB_CTRL_SET_TIMEOUT); 2963 if (err < 0) 2964 goto err_free_buf; 2965 2966 *val = get_unaligned_le32(buf); 2967 2968 err_free_buf: 2969 kfree(buf); 2970 2971 return err; 2972 } 2973 2974 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) 2975 { 2976 return btusb_mtk_reg_read(data, reg, id); 2977 } 2978 2979 static u32 btusb_mtk_reset_done(struct hci_dev *hdev) 2980 { 2981 struct btusb_data *data = hci_get_drvdata(hdev); 2982 u32 val = 0; 2983 2984 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); 2985 2986 return val & MTK_BT_RST_DONE; 2987 } 2988 2989 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2990 { 2991 struct btusb_data *data = hci_get_drvdata(hdev); 2992 struct btmediatek_data *mediatek; 2993 u32 val; 2994 int err; 2995 2996 /* It's MediaTek specific bluetooth reset mechanism via USB */ 2997 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 2998 bt_dev_err(hdev, "last reset failed? Not resetting again"); 2999 return -EBUSY; 3000 } 3001 3002 err = usb_autopm_get_interface(data->intf); 3003 if (err < 0) 3004 return err; 3005 3006 btusb_stop_traffic(data); 3007 usb_kill_anchored_urbs(&data->tx_anchor); 3008 mediatek = hci_get_priv(hdev); 3009 3010 if (mediatek->dev_id == 0x7925) { 3011 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3012 val |= (1 << 5); 3013 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3014 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3015 val &= 0xFFFF00FF; 3016 val |= (1 << 13); 3017 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3018 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); 3019 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3020 val |= (1 << 0); 3021 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3022 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3023 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3024 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3025 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3026 msleep(100); 3027 } else { 3028 /* It's Device EndPoint Reset Option Register */ 3029 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); 3030 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3031 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); 3032 3033 /* Reset the bluetooth chip via USB interface. */ 3034 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); 3035 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3036 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3037 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3038 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3039 /* MT7921 need to delay 20ms between toggle reset bit */ 3040 msleep(20); 3041 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); 3042 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); 3043 } 3044 3045 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val, 3046 val & MTK_BT_RST_DONE, 20000, 1000000); 3047 if (err < 0) 3048 bt_dev_err(hdev, "Reset timeout"); 3049 3050 btusb_mtk_id_get(data, 0x70010200, &val); 3051 if (!val) 3052 bt_dev_err(hdev, "Can't get device id, subsys reset fail."); 3053 3054 usb_queue_reset_device(data->intf); 3055 3056 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); 3057 3058 return err; 3059 } 3060 3061 static int btusb_mtk_setup(struct hci_dev *hdev) 3062 { 3063 struct btusb_data *data = hci_get_drvdata(hdev); 3064 struct btmtk_hci_wmt_params wmt_params; 3065 ktime_t calltime, delta, rettime; 3066 struct btmtk_tci_sleep tci_sleep; 3067 unsigned long long duration; 3068 struct sk_buff *skb; 3069 const char *fwname; 3070 int err, status; 3071 u32 dev_id = 0; 3072 char fw_bin_name[64]; 3073 u32 fw_version = 0; 3074 u8 param; 3075 struct btmediatek_data *mediatek; 3076 3077 calltime = ktime_get(); 3078 3079 err = btusb_mtk_id_get(data, 0x80000008, &dev_id); 3080 if (err < 0) { 3081 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3082 return err; 3083 } 3084 3085 if (!dev_id || dev_id != 0x7663) { 3086 err = btusb_mtk_id_get(data, 0x70010200, &dev_id); 3087 if (err < 0) { 3088 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3089 return err; 3090 } 3091 err = btusb_mtk_id_get(data, 0x80021004, &fw_version); 3092 if (err < 0) { 3093 bt_dev_err(hdev, "Failed to get fw version (%d)", err); 3094 return err; 3095 } 3096 } 3097 3098 mediatek = hci_get_priv(hdev); 3099 mediatek->dev_id = dev_id; 3100 mediatek->reset_sync = btusb_mtk_reset; 3101 3102 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version); 3103 if (err < 0) 3104 bt_dev_err(hdev, "Failed to register coredump (%d)", err); 3105 3106 switch (dev_id) { 3107 case 0x7663: 3108 fwname = FIRMWARE_MT7663; 3109 break; 3110 case 0x7668: 3111 fwname = FIRMWARE_MT7668; 3112 break; 3113 case 0x7922: 3114 case 0x7961: 3115 case 0x7925: 3116 if (dev_id == 0x7925) 3117 snprintf(fw_bin_name, sizeof(fw_bin_name), 3118 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3119 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1); 3120 else 3121 snprintf(fw_bin_name, sizeof(fw_bin_name), 3122 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3123 dev_id & 0xffff, (fw_version & 0xff) + 1); 3124 3125 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name, 3126 btusb_mtk_hci_wmt_sync); 3127 if (err < 0) { 3128 bt_dev_err(hdev, "Failed to set up firmware (%d)", err); 3129 return err; 3130 } 3131 3132 /* It's Device EndPoint Reset Option Register */ 3133 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3134 3135 /* Enable Bluetooth protocol */ 3136 param = 1; 3137 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3138 wmt_params.flag = 0; 3139 wmt_params.dlen = sizeof(param); 3140 wmt_params.data = ¶m; 3141 wmt_params.status = NULL; 3142 3143 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3144 if (err < 0) { 3145 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3146 return err; 3147 } 3148 3149 hci_set_msft_opcode(hdev, 0xFD30); 3150 hci_set_aosp_capable(hdev); 3151 goto done; 3152 default: 3153 bt_dev_err(hdev, "Unsupported hardware variant (%08x)", 3154 dev_id); 3155 return -ENODEV; 3156 } 3157 3158 /* Query whether the firmware is already download */ 3159 wmt_params.op = BTMTK_WMT_SEMAPHORE; 3160 wmt_params.flag = 1; 3161 wmt_params.dlen = 0; 3162 wmt_params.data = NULL; 3163 wmt_params.status = &status; 3164 3165 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3166 if (err < 0) { 3167 bt_dev_err(hdev, "Failed to query firmware status (%d)", err); 3168 return err; 3169 } 3170 3171 if (status == BTMTK_WMT_PATCH_DONE) { 3172 bt_dev_info(hdev, "firmware already downloaded"); 3173 goto ignore_setup_fw; 3174 } 3175 3176 /* Setup a firmware which the device definitely requires */ 3177 err = btmtk_setup_firmware(hdev, fwname, 3178 btusb_mtk_hci_wmt_sync); 3179 if (err < 0) 3180 return err; 3181 3182 ignore_setup_fw: 3183 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, 3184 status < 0 || status != BTMTK_WMT_ON_PROGRESS, 3185 2000, 5000000); 3186 /* -ETIMEDOUT happens */ 3187 if (err < 0) 3188 return err; 3189 3190 /* The other errors happen in btusb_mtk_func_query */ 3191 if (status < 0) 3192 return status; 3193 3194 if (status == BTMTK_WMT_ON_DONE) { 3195 bt_dev_info(hdev, "function already on"); 3196 goto ignore_func_on; 3197 } 3198 3199 /* Enable Bluetooth protocol */ 3200 param = 1; 3201 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3202 wmt_params.flag = 0; 3203 wmt_params.dlen = sizeof(param); 3204 wmt_params.data = ¶m; 3205 wmt_params.status = NULL; 3206 3207 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3208 if (err < 0) { 3209 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3210 return err; 3211 } 3212 3213 ignore_func_on: 3214 /* Apply the low power environment setup */ 3215 tci_sleep.mode = 0x5; 3216 tci_sleep.duration = cpu_to_le16(0x640); 3217 tci_sleep.host_duration = cpu_to_le16(0x640); 3218 tci_sleep.host_wakeup_pin = 0; 3219 tci_sleep.time_compensation = 0; 3220 3221 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, 3222 HCI_INIT_TIMEOUT); 3223 if (IS_ERR(skb)) { 3224 err = PTR_ERR(skb); 3225 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); 3226 return err; 3227 } 3228 kfree_skb(skb); 3229 3230 done: 3231 rettime = ktime_get(); 3232 delta = ktime_sub(rettime, calltime); 3233 duration = (unsigned long long)ktime_to_ns(delta) >> 10; 3234 3235 bt_dev_info(hdev, "Device setup in %llu usecs", duration); 3236 3237 return 0; 3238 } 3239 3240 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3241 { 3242 struct btmtk_hci_wmt_params wmt_params; 3243 u8 param = 0; 3244 int err; 3245 3246 /* Disable the device */ 3247 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3248 wmt_params.flag = 0; 3249 wmt_params.dlen = sizeof(param); 3250 wmt_params.data = ¶m; 3251 wmt_params.status = NULL; 3252 3253 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3254 if (err < 0) { 3255 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3256 return err; 3257 } 3258 3259 return 0; 3260 } 3261 3262 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3263 { 3264 struct btusb_data *data = hci_get_drvdata(hdev); 3265 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); 3266 struct sk_buff *skb_cd; 3267 3268 switch (handle) { 3269 case 0xfc6f: /* Firmware dump from device */ 3270 /* When the firmware hangs, the device can no longer 3271 * suspend and thus disable auto-suspend. 3272 */ 3273 usb_disable_autosuspend(data->udev); 3274 3275 /* We need to forward the diagnostic packet to userspace daemon 3276 * for backward compatibility, so we have to clone the packet 3277 * extraly for the in-kernel coredump support. 3278 */ 3279 skb_cd = skb_clone(skb, GFP_ATOMIC); 3280 if (skb_cd) 3281 btmtk_process_coredump(hdev, skb_cd); 3282 3283 fallthrough; 3284 case 0x05ff: /* Firmware debug logging 1 */ 3285 case 0x05fe: /* Firmware debug logging 2 */ 3286 return hci_recv_diag(hdev, skb); 3287 } 3288 3289 return hci_recv_frame(hdev, skb); 3290 } 3291 3292 #ifdef CONFIG_PM 3293 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3294 static int marvell_config_oob_wake(struct hci_dev *hdev) 3295 { 3296 struct sk_buff *skb; 3297 struct btusb_data *data = hci_get_drvdata(hdev); 3298 struct device *dev = &data->udev->dev; 3299 u16 pin, gap, opcode; 3300 int ret; 3301 u8 cmd[5]; 3302 3303 /* Move on if no wakeup pin specified */ 3304 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3305 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3306 return 0; 3307 3308 /* Vendor specific command to configure a GPIO as wake-up pin */ 3309 opcode = hci_opcode_pack(0x3F, 0x59); 3310 cmd[0] = opcode & 0xFF; 3311 cmd[1] = opcode >> 8; 3312 cmd[2] = 2; /* length of parameters that follow */ 3313 cmd[3] = pin; 3314 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3315 3316 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3317 if (!skb) { 3318 bt_dev_err(hdev, "%s: No memory", __func__); 3319 return -ENOMEM; 3320 } 3321 3322 skb_put_data(skb, cmd, sizeof(cmd)); 3323 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3324 3325 ret = btusb_send_frame(hdev, skb); 3326 if (ret) { 3327 bt_dev_err(hdev, "%s: configuration failed", __func__); 3328 kfree_skb(skb); 3329 return ret; 3330 } 3331 3332 return 0; 3333 } 3334 #endif 3335 3336 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3337 const bdaddr_t *bdaddr) 3338 { 3339 struct sk_buff *skb; 3340 u8 buf[8]; 3341 long ret; 3342 3343 buf[0] = 0xfe; 3344 buf[1] = sizeof(bdaddr_t); 3345 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3346 3347 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3348 if (IS_ERR(skb)) { 3349 ret = PTR_ERR(skb); 3350 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3351 ret); 3352 return ret; 3353 } 3354 kfree_skb(skb); 3355 3356 return 0; 3357 } 3358 3359 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3360 const bdaddr_t *bdaddr) 3361 { 3362 struct sk_buff *skb; 3363 u8 buf[10]; 3364 long ret; 3365 3366 buf[0] = 0x01; 3367 buf[1] = 0x01; 3368 buf[2] = 0x00; 3369 buf[3] = sizeof(bdaddr_t); 3370 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3371 3372 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3373 if (IS_ERR(skb)) { 3374 ret = PTR_ERR(skb); 3375 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3376 return ret; 3377 } 3378 kfree_skb(skb); 3379 3380 return 0; 3381 } 3382 3383 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3384 const bdaddr_t *bdaddr) 3385 { 3386 struct sk_buff *skb; 3387 u8 buf[6]; 3388 long ret; 3389 3390 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3391 3392 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3393 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3394 if (IS_ERR(skb)) { 3395 ret = PTR_ERR(skb); 3396 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3397 return ret; 3398 } 3399 kfree_skb(skb); 3400 3401 return 0; 3402 } 3403 3404 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3405 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3406 #define QCA_MEMDUMP_VSE_CLASS 0x01 3407 #define QCA_MEMDUMP_MSG_TYPE 0x08 3408 #define QCA_MEMDUMP_PKT_SIZE 248 3409 #define QCA_LAST_SEQUENCE_NUM 0xffff 3410 3411 struct qca_dump_hdr { 3412 u8 vse_class; 3413 u8 msg_type; 3414 __le16 seqno; 3415 u8 reserved; 3416 union { 3417 u8 data[0]; 3418 struct { 3419 __le32 ram_dump_size; 3420 u8 data0[0]; 3421 } __packed; 3422 }; 3423 } __packed; 3424 3425 3426 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3427 { 3428 char buf[128]; 3429 struct btusb_data *btdata = hci_get_drvdata(hdev); 3430 3431 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3432 btdata->qca_dump.controller_id); 3433 skb_put_data(skb, buf, strlen(buf)); 3434 3435 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3436 btdata->qca_dump.fw_version); 3437 skb_put_data(skb, buf, strlen(buf)); 3438 3439 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3440 btusb_driver.name); 3441 skb_put_data(skb, buf, strlen(buf)); 3442 3443 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3444 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3445 skb_put_data(skb, buf, strlen(buf)); 3446 3447 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3448 hdev->lmp_subver); 3449 skb_put_data(skb, buf, strlen(buf)); 3450 } 3451 3452 static void btusb_coredump_qca(struct hci_dev *hdev) 3453 { 3454 static const u8 param[] = { 0x26 }; 3455 struct sk_buff *skb; 3456 3457 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT); 3458 if (IS_ERR(skb)) 3459 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb)); 3460 kfree_skb(skb); 3461 } 3462 3463 /* 3464 * ==0: not a dump pkt. 3465 * < 0: fails to handle a dump pkt 3466 * > 0: otherwise. 3467 */ 3468 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3469 { 3470 int ret = 1; 3471 u8 pkt_type; 3472 u8 *sk_ptr; 3473 unsigned int sk_len; 3474 u16 seqno; 3475 u32 dump_size; 3476 3477 struct hci_event_hdr *event_hdr; 3478 struct hci_acl_hdr *acl_hdr; 3479 struct qca_dump_hdr *dump_hdr; 3480 struct btusb_data *btdata = hci_get_drvdata(hdev); 3481 struct usb_device *udev = btdata->udev; 3482 3483 pkt_type = hci_skb_pkt_type(skb); 3484 sk_ptr = skb->data; 3485 sk_len = skb->len; 3486 3487 if (pkt_type == HCI_ACLDATA_PKT) { 3488 acl_hdr = hci_acl_hdr(skb); 3489 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3490 return 0; 3491 sk_ptr += HCI_ACL_HDR_SIZE; 3492 sk_len -= HCI_ACL_HDR_SIZE; 3493 event_hdr = (struct hci_event_hdr *)sk_ptr; 3494 } else { 3495 event_hdr = hci_event_hdr(skb); 3496 } 3497 3498 if ((event_hdr->evt != HCI_VENDOR_PKT) 3499 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3500 return 0; 3501 3502 sk_ptr += HCI_EVENT_HDR_SIZE; 3503 sk_len -= HCI_EVENT_HDR_SIZE; 3504 3505 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3506 if ((sk_len < offsetof(struct qca_dump_hdr, data)) 3507 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) 3508 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3509 return 0; 3510 3511 /*it is dump pkt now*/ 3512 seqno = le16_to_cpu(dump_hdr->seqno); 3513 if (seqno == 0) { 3514 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3515 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3516 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3517 ret = -EILSEQ; 3518 bt_dev_err(hdev, "Invalid memdump size(%u)", 3519 dump_size); 3520 goto out; 3521 } 3522 3523 ret = hci_devcd_init(hdev, dump_size); 3524 if (ret < 0) { 3525 bt_dev_err(hdev, "memdump init error(%d)", ret); 3526 goto out; 3527 } 3528 3529 btdata->qca_dump.ram_dump_size = dump_size; 3530 btdata->qca_dump.ram_dump_seqno = 0; 3531 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3532 sk_len -= offsetof(struct qca_dump_hdr, data0); 3533 3534 usb_disable_autosuspend(udev); 3535 bt_dev_info(hdev, "%s memdump size(%u)\n", 3536 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3537 dump_size); 3538 } else { 3539 sk_ptr += offsetof(struct qca_dump_hdr, data); 3540 sk_len -= offsetof(struct qca_dump_hdr, data); 3541 } 3542 3543 if (!btdata->qca_dump.ram_dump_size) { 3544 ret = -EINVAL; 3545 bt_dev_err(hdev, "memdump is not active"); 3546 goto out; 3547 } 3548 3549 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3550 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3551 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3552 bt_dev_err(hdev, 3553 "expected memdump seqno(%u) is not received(%u)\n", 3554 btdata->qca_dump.ram_dump_seqno, seqno); 3555 btdata->qca_dump.ram_dump_seqno = seqno; 3556 kfree_skb(skb); 3557 return ret; 3558 } 3559 3560 skb_pull(skb, skb->len - sk_len); 3561 hci_devcd_append(hdev, skb); 3562 btdata->qca_dump.ram_dump_seqno++; 3563 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3564 bt_dev_info(hdev, 3565 "memdump done: pkts(%u), total(%u)\n", 3566 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3567 3568 hci_devcd_complete(hdev); 3569 goto out; 3570 } 3571 return ret; 3572 3573 out: 3574 if (btdata->qca_dump.ram_dump_size) 3575 usb_enable_autosuspend(udev); 3576 btdata->qca_dump.ram_dump_size = 0; 3577 btdata->qca_dump.ram_dump_seqno = 0; 3578 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3579 3580 if (ret < 0) 3581 kfree_skb(skb); 3582 return ret; 3583 } 3584 3585 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3586 { 3587 if (handle_dump_pkt_qca(hdev, skb)) 3588 return 0; 3589 return hci_recv_frame(hdev, skb); 3590 } 3591 3592 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3593 { 3594 if (handle_dump_pkt_qca(hdev, skb)) 3595 return 0; 3596 return hci_recv_frame(hdev, skb); 3597 } 3598 3599 3600 #define QCA_DFU_PACKET_LEN 4096 3601 3602 #define QCA_GET_TARGET_VERSION 0x09 3603 #define QCA_CHECK_STATUS 0x05 3604 #define QCA_DFU_DOWNLOAD 0x01 3605 3606 #define QCA_SYSCFG_UPDATED 0x40 3607 #define QCA_PATCH_UPDATED 0x80 3608 #define QCA_DFU_TIMEOUT 3000 3609 #define QCA_FLAG_MULTI_NVM 0x80 3610 #define QCA_BT_RESET_WAIT_MS 100 3611 3612 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3613 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3614 3615 struct qca_version { 3616 __le32 rom_version; 3617 __le32 patch_version; 3618 __le32 ram_version; 3619 __u8 chip_id; 3620 __u8 platform_id; 3621 __le16 flag; 3622 __u8 reserved[4]; 3623 } __packed; 3624 3625 struct qca_rampatch_version { 3626 __le16 rom_version_high; 3627 __le16 rom_version_low; 3628 __le16 patch_version; 3629 } __packed; 3630 3631 struct qca_device_info { 3632 u32 rom_version; 3633 u8 rampatch_hdr; /* length of header in rampatch */ 3634 u8 nvm_hdr; /* length of header in NVM */ 3635 u8 ver_offset; /* offset of version structure in rampatch */ 3636 }; 3637 3638 static const struct qca_device_info qca_devices_table[] = { 3639 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3640 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3641 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3642 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3643 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3644 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3645 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3646 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3647 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3648 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3649 }; 3650 3651 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3652 void *data, u16 size) 3653 { 3654 int pipe, err; 3655 u8 *buf; 3656 3657 buf = kmalloc(size, GFP_KERNEL); 3658 if (!buf) 3659 return -ENOMEM; 3660 3661 /* Found some of USB hosts have IOT issues with ours so that we should 3662 * not wait until HCI layer is ready. 3663 */ 3664 pipe = usb_rcvctrlpipe(udev, 0); 3665 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3666 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3667 if (err < 0) { 3668 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3669 goto done; 3670 } 3671 3672 memcpy(data, buf, size); 3673 3674 done: 3675 kfree(buf); 3676 3677 return err; 3678 } 3679 3680 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3681 const struct firmware *firmware, 3682 size_t hdr_size) 3683 { 3684 struct btusb_data *btdata = hci_get_drvdata(hdev); 3685 struct usb_device *udev = btdata->udev; 3686 size_t count, size, sent = 0; 3687 int pipe, len, err; 3688 u8 *buf; 3689 3690 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3691 if (!buf) 3692 return -ENOMEM; 3693 3694 count = firmware->size; 3695 3696 size = min_t(size_t, count, hdr_size); 3697 memcpy(buf, firmware->data, size); 3698 3699 /* USB patches should go down to controller through USB path 3700 * because binary format fits to go down through USB channel. 3701 * USB control path is for patching headers and USB bulk is for 3702 * patch body. 3703 */ 3704 pipe = usb_sndctrlpipe(udev, 0); 3705 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3706 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3707 if (err < 0) { 3708 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3709 goto done; 3710 } 3711 3712 sent += size; 3713 count -= size; 3714 3715 /* ep2 need time to switch from function acl to function dfu, 3716 * so we add 20ms delay here. 3717 */ 3718 msleep(20); 3719 3720 while (count) { 3721 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3722 3723 memcpy(buf, firmware->data + sent, size); 3724 3725 pipe = usb_sndbulkpipe(udev, 0x02); 3726 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3727 QCA_DFU_TIMEOUT); 3728 if (err < 0) { 3729 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3730 sent, firmware->size, err); 3731 break; 3732 } 3733 3734 if (size != len) { 3735 bt_dev_err(hdev, "Failed to get bulk buffer"); 3736 err = -EILSEQ; 3737 break; 3738 } 3739 3740 sent += size; 3741 count -= size; 3742 } 3743 3744 done: 3745 kfree(buf); 3746 return err; 3747 } 3748 3749 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3750 struct qca_version *ver, 3751 const struct qca_device_info *info) 3752 { 3753 struct qca_rampatch_version *rver; 3754 const struct firmware *fw; 3755 u32 ver_rom, ver_patch, rver_rom; 3756 u16 rver_rom_low, rver_rom_high, rver_patch; 3757 char fwname[64]; 3758 int err; 3759 3760 ver_rom = le32_to_cpu(ver->rom_version); 3761 ver_patch = le32_to_cpu(ver->patch_version); 3762 3763 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3764 3765 err = request_firmware(&fw, fwname, &hdev->dev); 3766 if (err) { 3767 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3768 fwname, err); 3769 return err; 3770 } 3771 3772 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3773 3774 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3775 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3776 rver_patch = le16_to_cpu(rver->patch_version); 3777 3778 if (ver_rom & ~0xffffU) { 3779 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3780 rver_rom = rver_rom_high << 16 | rver_rom_low; 3781 } else { 3782 rver_rom = rver_rom_low; 3783 } 3784 3785 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3786 "firmware rome 0x%x build 0x%x", 3787 rver_rom, rver_patch, ver_rom, ver_patch); 3788 3789 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3790 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3791 err = -EINVAL; 3792 goto done; 3793 } 3794 3795 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3796 3797 done: 3798 release_firmware(fw); 3799 3800 return err; 3801 } 3802 3803 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3804 const struct qca_version *ver) 3805 { 3806 u32 rom_version = le32_to_cpu(ver->rom_version); 3807 u16 flag = le16_to_cpu(ver->flag); 3808 3809 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3810 /* The board_id should be split into two bytes 3811 * The 1st byte is chip ID, and the 2nd byte is platform ID 3812 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3813 * we have several platforms, and platform IDs are continuously added 3814 * Platform ID: 3815 * 0x00 is for Mobile 3816 * 0x01 is for X86 3817 * 0x02 is for Automotive 3818 * 0x03 is for Consumer electronic 3819 */ 3820 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3821 const char *variant; 3822 3823 switch (le32_to_cpu(ver->ram_version)) { 3824 case WCN6855_2_0_RAM_VERSION_GF: 3825 case WCN6855_2_1_RAM_VERSION_GF: 3826 variant = "_gf"; 3827 break; 3828 default: 3829 variant = ""; 3830 break; 3831 } 3832 3833 if (board_id == 0) { 3834 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3835 rom_version, variant); 3836 } else { 3837 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3838 rom_version, variant, board_id); 3839 } 3840 } else { 3841 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3842 rom_version); 3843 } 3844 3845 } 3846 3847 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3848 struct qca_version *ver, 3849 const struct qca_device_info *info) 3850 { 3851 const struct firmware *fw; 3852 char fwname[64]; 3853 int err; 3854 3855 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3856 3857 err = request_firmware(&fw, fwname, &hdev->dev); 3858 if (err) { 3859 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3860 fwname, err); 3861 return err; 3862 } 3863 3864 bt_dev_info(hdev, "using NVM file: %s", fwname); 3865 3866 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3867 3868 release_firmware(fw); 3869 3870 return err; 3871 } 3872 3873 /* identify the ROM version and check whether patches are needed */ 3874 static bool btusb_qca_need_patch(struct usb_device *udev) 3875 { 3876 struct qca_version ver; 3877 3878 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3879 sizeof(ver)) < 0) 3880 return false; 3881 /* only low ROM versions need patches */ 3882 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3883 } 3884 3885 static int btusb_setup_qca(struct hci_dev *hdev) 3886 { 3887 struct btusb_data *btdata = hci_get_drvdata(hdev); 3888 struct usb_device *udev = btdata->udev; 3889 const struct qca_device_info *info = NULL; 3890 struct qca_version ver; 3891 u32 ver_rom; 3892 u8 status; 3893 int i, err; 3894 3895 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3896 sizeof(ver)); 3897 if (err < 0) 3898 return err; 3899 3900 ver_rom = le32_to_cpu(ver.rom_version); 3901 3902 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3903 if (ver_rom == qca_devices_table[i].rom_version) 3904 info = &qca_devices_table[i]; 3905 } 3906 if (!info) { 3907 /* If the rom_version is not matched in the qca_devices_table 3908 * and the high ROM version is not zero, we assume this chip no 3909 * need to load the rampatch and nvm. 3910 */ 3911 if (ver_rom & ~0xffffU) 3912 return 0; 3913 3914 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3915 return -ENODEV; 3916 } 3917 3918 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3919 sizeof(status)); 3920 if (err < 0) 3921 return err; 3922 3923 if (!(status & QCA_PATCH_UPDATED)) { 3924 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3925 if (err < 0) 3926 return err; 3927 } 3928 3929 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3930 sizeof(ver)); 3931 if (err < 0) 3932 return err; 3933 3934 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3935 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3936 3937 if (!(status & QCA_SYSCFG_UPDATED)) { 3938 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3939 if (err < 0) 3940 return err; 3941 3942 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3943 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3944 * cause potential enable failure. 3945 */ 3946 if (info->rom_version >= 0x00130201) 3947 msleep(QCA_BT_RESET_WAIT_MS); 3948 } 3949 3950 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3951 * work with the likes of HSP/HFP mSBC. 3952 */ 3953 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3954 3955 return 0; 3956 } 3957 3958 static inline int __set_diag_interface(struct hci_dev *hdev) 3959 { 3960 struct btusb_data *data = hci_get_drvdata(hdev); 3961 struct usb_interface *intf = data->diag; 3962 int i; 3963 3964 if (!data->diag) 3965 return -ENODEV; 3966 3967 data->diag_tx_ep = NULL; 3968 data->diag_rx_ep = NULL; 3969 3970 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3971 struct usb_endpoint_descriptor *ep_desc; 3972 3973 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3974 3975 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3976 data->diag_tx_ep = ep_desc; 3977 continue; 3978 } 3979 3980 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3981 data->diag_rx_ep = ep_desc; 3982 continue; 3983 } 3984 } 3985 3986 if (!data->diag_tx_ep || !data->diag_rx_ep) { 3987 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3988 return -ENODEV; 3989 } 3990 3991 return 0; 3992 } 3993 3994 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3995 { 3996 struct btusb_data *data = hci_get_drvdata(hdev); 3997 struct sk_buff *skb; 3998 struct urb *urb; 3999 unsigned int pipe; 4000 4001 if (!data->diag_tx_ep) 4002 return ERR_PTR(-ENODEV); 4003 4004 urb = usb_alloc_urb(0, GFP_KERNEL); 4005 if (!urb) 4006 return ERR_PTR(-ENOMEM); 4007 4008 skb = bt_skb_alloc(2, GFP_KERNEL); 4009 if (!skb) { 4010 usb_free_urb(urb); 4011 return ERR_PTR(-ENOMEM); 4012 } 4013 4014 skb_put_u8(skb, 0xf0); 4015 skb_put_u8(skb, enable); 4016 4017 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 4018 4019 usb_fill_bulk_urb(urb, data->udev, pipe, 4020 skb->data, skb->len, btusb_tx_complete, skb); 4021 4022 skb->dev = (void *)hdev; 4023 4024 return urb; 4025 } 4026 4027 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 4028 { 4029 struct btusb_data *data = hci_get_drvdata(hdev); 4030 struct urb *urb; 4031 4032 if (!data->diag) 4033 return -ENODEV; 4034 4035 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4036 return -ENETDOWN; 4037 4038 urb = alloc_diag_urb(hdev, enable); 4039 if (IS_ERR(urb)) 4040 return PTR_ERR(urb); 4041 4042 return submit_or_queue_tx_urb(hdev, urb); 4043 } 4044 4045 #ifdef CONFIG_PM 4046 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 4047 { 4048 struct btusb_data *data = priv; 4049 4050 pm_wakeup_event(&data->udev->dev, 0); 4051 pm_system_wakeup(); 4052 4053 /* Disable only if not already disabled (keep it balanced) */ 4054 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4055 disable_irq_nosync(irq); 4056 disable_irq_wake(irq); 4057 } 4058 return IRQ_HANDLED; 4059 } 4060 4061 static const struct of_device_id btusb_match_table[] = { 4062 { .compatible = "usb1286,204e" }, 4063 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 4064 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 4065 { } 4066 }; 4067 MODULE_DEVICE_TABLE(of, btusb_match_table); 4068 4069 /* Use an oob wakeup pin? */ 4070 static int btusb_config_oob_wake(struct hci_dev *hdev) 4071 { 4072 struct btusb_data *data = hci_get_drvdata(hdev); 4073 struct device *dev = &data->udev->dev; 4074 int irq, ret; 4075 4076 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4077 4078 if (!of_match_device(btusb_match_table, dev)) 4079 return 0; 4080 4081 /* Move on if no IRQ specified */ 4082 irq = of_irq_get_byname(dev->of_node, "wakeup"); 4083 if (irq <= 0) { 4084 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 4085 return 0; 4086 } 4087 4088 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4089 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 4090 0, "OOB Wake-on-BT", data); 4091 if (ret) { 4092 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4093 return ret; 4094 } 4095 4096 ret = device_init_wakeup(dev, true); 4097 if (ret) { 4098 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4099 return ret; 4100 } 4101 4102 data->oob_wake_irq = irq; 4103 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4104 return 0; 4105 } 4106 #endif 4107 4108 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4109 { 4110 if (dmi_check_system(btusb_needs_reset_resume_table)) 4111 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4112 } 4113 4114 static bool btusb_wakeup(struct hci_dev *hdev) 4115 { 4116 struct btusb_data *data = hci_get_drvdata(hdev); 4117 4118 return device_may_wakeup(&data->udev->dev); 4119 } 4120 4121 static int btusb_shutdown_qca(struct hci_dev *hdev) 4122 { 4123 struct sk_buff *skb; 4124 4125 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 4126 if (IS_ERR(skb)) { 4127 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4128 return PTR_ERR(skb); 4129 } 4130 kfree_skb(skb); 4131 4132 return 0; 4133 } 4134 4135 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4136 size_t count, loff_t *ppos) 4137 { 4138 struct btusb_data *data = file->private_data; 4139 char buf[3]; 4140 4141 buf[0] = data->poll_sync ? 'Y' : 'N'; 4142 buf[1] = '\n'; 4143 buf[2] = '\0'; 4144 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4145 } 4146 4147 static ssize_t force_poll_sync_write(struct file *file, 4148 const char __user *user_buf, 4149 size_t count, loff_t *ppos) 4150 { 4151 struct btusb_data *data = file->private_data; 4152 bool enable; 4153 int err; 4154 4155 err = kstrtobool_from_user(user_buf, count, &enable); 4156 if (err) 4157 return err; 4158 4159 /* Only allow changes while the adapter is down */ 4160 if (test_bit(HCI_UP, &data->hdev->flags)) 4161 return -EPERM; 4162 4163 if (data->poll_sync == enable) 4164 return -EALREADY; 4165 4166 data->poll_sync = enable; 4167 4168 return count; 4169 } 4170 4171 static const struct file_operations force_poll_sync_fops = { 4172 .open = simple_open, 4173 .read = force_poll_sync_read, 4174 .write = force_poll_sync_write, 4175 .llseek = default_llseek, 4176 }; 4177 4178 static int btusb_probe(struct usb_interface *intf, 4179 const struct usb_device_id *id) 4180 { 4181 struct usb_endpoint_descriptor *ep_desc; 4182 struct gpio_desc *reset_gpio; 4183 struct btusb_data *data; 4184 struct hci_dev *hdev; 4185 unsigned ifnum_base; 4186 int i, err, priv_size; 4187 4188 BT_DBG("intf %p id %p", intf, id); 4189 4190 if ((id->driver_info & BTUSB_IFNUM_2) && 4191 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4192 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4193 return -ENODEV; 4194 4195 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4196 4197 if (!id->driver_info) { 4198 const struct usb_device_id *match; 4199 4200 match = usb_match_id(intf, quirks_table); 4201 if (match) 4202 id = match; 4203 } 4204 4205 if (id->driver_info == BTUSB_IGNORE) 4206 return -ENODEV; 4207 4208 if (id->driver_info & BTUSB_ATH3012) { 4209 struct usb_device *udev = interface_to_usbdev(intf); 4210 4211 /* Old firmware would otherwise let ath3k driver load 4212 * patch and sysconfig files 4213 */ 4214 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4215 !btusb_qca_need_patch(udev)) 4216 return -ENODEV; 4217 } 4218 4219 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 4220 if (!data) 4221 return -ENOMEM; 4222 4223 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4224 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4225 4226 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 4227 data->intr_ep = ep_desc; 4228 continue; 4229 } 4230 4231 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4232 data->bulk_tx_ep = ep_desc; 4233 continue; 4234 } 4235 4236 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4237 data->bulk_rx_ep = ep_desc; 4238 continue; 4239 } 4240 } 4241 4242 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 4243 return -ENODEV; 4244 4245 if (id->driver_info & BTUSB_AMP) { 4246 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4247 data->cmdreq = 0x2b; 4248 } else { 4249 data->cmdreq_type = USB_TYPE_CLASS; 4250 data->cmdreq = 0x00; 4251 } 4252 4253 data->udev = interface_to_usbdev(intf); 4254 data->intf = intf; 4255 4256 INIT_WORK(&data->work, btusb_work); 4257 INIT_WORK(&data->waker, btusb_waker); 4258 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4259 4260 skb_queue_head_init(&data->acl_q); 4261 4262 init_usb_anchor(&data->deferred); 4263 init_usb_anchor(&data->tx_anchor); 4264 spin_lock_init(&data->txlock); 4265 4266 init_usb_anchor(&data->intr_anchor); 4267 init_usb_anchor(&data->bulk_anchor); 4268 init_usb_anchor(&data->isoc_anchor); 4269 init_usb_anchor(&data->diag_anchor); 4270 init_usb_anchor(&data->ctrl_anchor); 4271 spin_lock_init(&data->rxlock); 4272 4273 priv_size = 0; 4274 4275 data->recv_event = hci_recv_frame; 4276 data->recv_bulk = btusb_recv_bulk; 4277 4278 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4279 /* Allocate extra space for Intel device */ 4280 priv_size += sizeof(struct btintel_data); 4281 4282 /* Override the rx handlers */ 4283 data->recv_event = btintel_recv_event; 4284 data->recv_bulk = btusb_recv_bulk_intel; 4285 } else if (id->driver_info & BTUSB_REALTEK) { 4286 /* Allocate extra space for Realtek device */ 4287 priv_size += sizeof(struct btrealtek_data); 4288 4289 data->recv_event = btusb_recv_event_realtek; 4290 } else if (id->driver_info & BTUSB_MEDIATEK) { 4291 /* Allocate extra space for Mediatek device */ 4292 priv_size += sizeof(struct btmediatek_data); 4293 } 4294 4295 data->recv_acl = hci_recv_frame; 4296 4297 hdev = hci_alloc_dev_priv(priv_size); 4298 if (!hdev) 4299 return -ENOMEM; 4300 4301 hdev->bus = HCI_USB; 4302 hci_set_drvdata(hdev, data); 4303 4304 if (id->driver_info & BTUSB_AMP) 4305 hdev->dev_type = HCI_AMP; 4306 else 4307 hdev->dev_type = HCI_PRIMARY; 4308 4309 data->hdev = hdev; 4310 4311 SET_HCIDEV_DEV(hdev, &intf->dev); 4312 4313 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4314 GPIOD_OUT_LOW); 4315 if (IS_ERR(reset_gpio)) { 4316 err = PTR_ERR(reset_gpio); 4317 goto out_free_dev; 4318 } else if (reset_gpio) { 4319 data->reset_gpio = reset_gpio; 4320 } 4321 4322 hdev->open = btusb_open; 4323 hdev->close = btusb_close; 4324 hdev->flush = btusb_flush; 4325 hdev->send = btusb_send_frame; 4326 hdev->notify = btusb_notify; 4327 hdev->wakeup = btusb_wakeup; 4328 4329 #ifdef CONFIG_PM 4330 err = btusb_config_oob_wake(hdev); 4331 if (err) 4332 goto out_free_dev; 4333 4334 /* Marvell devices may need a specific chip configuration */ 4335 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4336 err = marvell_config_oob_wake(hdev); 4337 if (err) 4338 goto out_free_dev; 4339 } 4340 #endif 4341 if (id->driver_info & BTUSB_CW6622) 4342 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4343 4344 if (id->driver_info & BTUSB_BCM2045) 4345 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4346 4347 if (id->driver_info & BTUSB_BCM92035) 4348 hdev->setup = btusb_setup_bcm92035; 4349 4350 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4351 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4352 hdev->manufacturer = 15; 4353 hdev->setup = btbcm_setup_patchram; 4354 hdev->set_diag = btusb_bcm_set_diag; 4355 hdev->set_bdaddr = btbcm_set_bdaddr; 4356 4357 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4358 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4359 } 4360 4361 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4362 (id->driver_info & BTUSB_BCM_APPLE)) { 4363 hdev->manufacturer = 15; 4364 hdev->setup = btbcm_setup_apple; 4365 hdev->set_diag = btusb_bcm_set_diag; 4366 4367 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4368 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4369 } 4370 4371 /* Combined Intel Device setup to support multiple setup routine */ 4372 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4373 err = btintel_configure_setup(hdev, btusb_driver.name); 4374 if (err) 4375 goto out_free_dev; 4376 4377 /* Transport specific configuration */ 4378 hdev->send = btusb_send_frame_intel; 4379 hdev->cmd_timeout = btusb_intel_cmd_timeout; 4380 4381 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4382 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4383 4384 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4385 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4386 4387 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4388 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4389 } 4390 4391 if (id->driver_info & BTUSB_MARVELL) 4392 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4393 4394 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4395 (id->driver_info & BTUSB_MEDIATEK)) { 4396 hdev->setup = btusb_mtk_setup; 4397 hdev->shutdown = btusb_mtk_shutdown; 4398 hdev->manufacturer = 70; 4399 hdev->cmd_timeout = btmtk_reset_sync; 4400 hdev->set_bdaddr = btmtk_set_bdaddr; 4401 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4402 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4403 data->recv_acl = btusb_recv_acl_mtk; 4404 } 4405 4406 if (id->driver_info & BTUSB_SWAVE) { 4407 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4408 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4409 } 4410 4411 if (id->driver_info & BTUSB_INTEL_BOOT) { 4412 hdev->manufacturer = 2; 4413 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4414 } 4415 4416 if (id->driver_info & BTUSB_ATH3012) { 4417 data->setup_on_usb = btusb_setup_qca; 4418 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4419 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4420 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4421 } 4422 4423 if (id->driver_info & BTUSB_QCA_ROME) { 4424 data->setup_on_usb = btusb_setup_qca; 4425 hdev->shutdown = btusb_shutdown_qca; 4426 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4427 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4428 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4429 btusb_check_needs_reset_resume(intf); 4430 } 4431 4432 if (id->driver_info & BTUSB_QCA_WCN6855) { 4433 data->qca_dump.id_vendor = id->idVendor; 4434 data->qca_dump.id_product = id->idProduct; 4435 data->recv_event = btusb_recv_evt_qca; 4436 data->recv_acl = btusb_recv_acl_qca; 4437 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4438 data->setup_on_usb = btusb_setup_qca; 4439 hdev->shutdown = btusb_shutdown_qca; 4440 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4441 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4442 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4443 hci_set_msft_opcode(hdev, 0xFD70); 4444 } 4445 4446 if (id->driver_info & BTUSB_AMP) { 4447 /* AMP controllers do not support SCO packets */ 4448 data->isoc = NULL; 4449 } else { 4450 /* Interface orders are hardcoded in the specification */ 4451 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4452 data->isoc_ifnum = ifnum_base + 1; 4453 } 4454 4455 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4456 (id->driver_info & BTUSB_REALTEK)) { 4457 btrtl_set_driver_name(hdev, btusb_driver.name); 4458 hdev->setup = btusb_setup_realtek; 4459 hdev->shutdown = btrtl_shutdown_realtek; 4460 hdev->cmd_timeout = btusb_rtl_cmd_timeout; 4461 hdev->hw_error = btusb_rtl_hw_error; 4462 4463 /* Realtek devices need to set remote wakeup on auto-suspend */ 4464 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4465 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4466 } 4467 4468 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4469 /* Support is advertised, but not implemented */ 4470 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4471 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4472 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4473 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4474 } 4475 4476 if (!reset) 4477 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4478 4479 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4480 if (!disable_scofix) 4481 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4482 } 4483 4484 if (id->driver_info & BTUSB_BROKEN_ISOC) 4485 data->isoc = NULL; 4486 4487 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4488 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4489 4490 if (id->driver_info & BTUSB_VALID_LE_STATES) 4491 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); 4492 4493 if (id->driver_info & BTUSB_DIGIANSWER) { 4494 data->cmdreq_type = USB_TYPE_VENDOR; 4495 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4496 } 4497 4498 if (id->driver_info & BTUSB_CSR) { 4499 struct usb_device *udev = data->udev; 4500 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4501 4502 /* Old firmware would otherwise execute USB reset */ 4503 if (bcdDevice < 0x117) 4504 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4505 4506 /* This must be set first in case we disable it for fakes */ 4507 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4508 4509 /* Fake CSR devices with broken commands */ 4510 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4511 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4512 hdev->setup = btusb_setup_csr; 4513 } 4514 4515 if (id->driver_info & BTUSB_SNIFFER) { 4516 struct usb_device *udev = data->udev; 4517 4518 /* New sniffer firmware has crippled HCI interface */ 4519 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4520 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4521 } 4522 4523 if (id->driver_info & BTUSB_INTEL_BOOT) { 4524 /* A bug in the bootloader causes that interrupt interface is 4525 * only enabled after receiving SetInterface(0, AltSetting=0). 4526 */ 4527 err = usb_set_interface(data->udev, 0, 0); 4528 if (err < 0) { 4529 BT_ERR("failed to set interface 0, alt 0 %d", err); 4530 goto out_free_dev; 4531 } 4532 } 4533 4534 if (data->isoc) { 4535 err = usb_driver_claim_interface(&btusb_driver, 4536 data->isoc, data); 4537 if (err < 0) 4538 goto out_free_dev; 4539 } 4540 4541 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4542 if (!usb_driver_claim_interface(&btusb_driver, 4543 data->diag, data)) 4544 __set_diag_interface(hdev); 4545 else 4546 data->diag = NULL; 4547 } 4548 4549 if (enable_autosuspend) 4550 usb_enable_autosuspend(data->udev); 4551 4552 data->poll_sync = enable_poll_sync; 4553 4554 err = hci_register_dev(hdev); 4555 if (err < 0) 4556 goto out_free_dev; 4557 4558 usb_set_intfdata(intf, data); 4559 4560 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4561 &force_poll_sync_fops); 4562 4563 return 0; 4564 4565 out_free_dev: 4566 if (data->reset_gpio) 4567 gpiod_put(data->reset_gpio); 4568 hci_free_dev(hdev); 4569 return err; 4570 } 4571 4572 static void btusb_disconnect(struct usb_interface *intf) 4573 { 4574 struct btusb_data *data = usb_get_intfdata(intf); 4575 struct hci_dev *hdev; 4576 4577 BT_DBG("intf %p", intf); 4578 4579 if (!data) 4580 return; 4581 4582 hdev = data->hdev; 4583 usb_set_intfdata(data->intf, NULL); 4584 4585 if (data->isoc) 4586 usb_set_intfdata(data->isoc, NULL); 4587 4588 if (data->diag) 4589 usb_set_intfdata(data->diag, NULL); 4590 4591 hci_unregister_dev(hdev); 4592 4593 if (intf == data->intf) { 4594 if (data->isoc) 4595 usb_driver_release_interface(&btusb_driver, data->isoc); 4596 if (data->diag) 4597 usb_driver_release_interface(&btusb_driver, data->diag); 4598 } else if (intf == data->isoc) { 4599 if (data->diag) 4600 usb_driver_release_interface(&btusb_driver, data->diag); 4601 usb_driver_release_interface(&btusb_driver, data->intf); 4602 } else if (intf == data->diag) { 4603 usb_driver_release_interface(&btusb_driver, data->intf); 4604 if (data->isoc) 4605 usb_driver_release_interface(&btusb_driver, data->isoc); 4606 } 4607 4608 if (data->oob_wake_irq) 4609 device_init_wakeup(&data->udev->dev, false); 4610 4611 if (data->reset_gpio) 4612 gpiod_put(data->reset_gpio); 4613 4614 hci_free_dev(hdev); 4615 } 4616 4617 #ifdef CONFIG_PM 4618 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4619 { 4620 struct btusb_data *data = usb_get_intfdata(intf); 4621 4622 BT_DBG("intf %p", intf); 4623 4624 if (data->suspend_count++) 4625 return 0; 4626 4627 spin_lock_irq(&data->txlock); 4628 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4629 set_bit(BTUSB_SUSPENDING, &data->flags); 4630 spin_unlock_irq(&data->txlock); 4631 } else { 4632 spin_unlock_irq(&data->txlock); 4633 data->suspend_count--; 4634 return -EBUSY; 4635 } 4636 4637 cancel_work_sync(&data->work); 4638 4639 btusb_stop_traffic(data); 4640 usb_kill_anchored_urbs(&data->tx_anchor); 4641 4642 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4643 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4644 enable_irq_wake(data->oob_wake_irq); 4645 enable_irq(data->oob_wake_irq); 4646 } 4647 4648 /* For global suspend, Realtek devices lose the loaded fw 4649 * in them. But for autosuspend, firmware should remain. 4650 * Actually, it depends on whether the usb host sends 4651 * set feature (enable wakeup) or not. 4652 */ 4653 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4654 if (PMSG_IS_AUTO(message) && 4655 device_can_wakeup(&data->udev->dev)) 4656 data->udev->do_remote_wakeup = 1; 4657 else if (!PMSG_IS_AUTO(message) && 4658 !device_may_wakeup(&data->udev->dev)) { 4659 data->udev->do_remote_wakeup = 0; 4660 data->udev->reset_resume = 1; 4661 } 4662 } 4663 4664 return 0; 4665 } 4666 4667 static void play_deferred(struct btusb_data *data) 4668 { 4669 struct urb *urb; 4670 int err; 4671 4672 while ((urb = usb_get_from_anchor(&data->deferred))) { 4673 usb_anchor_urb(urb, &data->tx_anchor); 4674 4675 err = usb_submit_urb(urb, GFP_ATOMIC); 4676 if (err < 0) { 4677 if (err != -EPERM && err != -ENODEV) 4678 BT_ERR("%s urb %p submission failed (%d)", 4679 data->hdev->name, urb, -err); 4680 kfree(urb->setup_packet); 4681 usb_unanchor_urb(urb); 4682 usb_free_urb(urb); 4683 break; 4684 } 4685 4686 data->tx_in_flight++; 4687 usb_free_urb(urb); 4688 } 4689 4690 /* Cleanup the rest deferred urbs. */ 4691 while ((urb = usb_get_from_anchor(&data->deferred))) { 4692 kfree(urb->setup_packet); 4693 usb_free_urb(urb); 4694 } 4695 } 4696 4697 static int btusb_resume(struct usb_interface *intf) 4698 { 4699 struct btusb_data *data = usb_get_intfdata(intf); 4700 struct hci_dev *hdev = data->hdev; 4701 int err = 0; 4702 4703 BT_DBG("intf %p", intf); 4704 4705 if (--data->suspend_count) 4706 return 0; 4707 4708 /* Disable only if not already disabled (keep it balanced) */ 4709 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4710 disable_irq(data->oob_wake_irq); 4711 disable_irq_wake(data->oob_wake_irq); 4712 } 4713 4714 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4715 goto done; 4716 4717 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4718 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4719 if (err < 0) { 4720 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4721 goto failed; 4722 } 4723 } 4724 4725 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4726 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4727 if (err < 0) { 4728 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4729 goto failed; 4730 } 4731 4732 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4733 } 4734 4735 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4736 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4737 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4738 else 4739 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4740 } 4741 4742 spin_lock_irq(&data->txlock); 4743 play_deferred(data); 4744 clear_bit(BTUSB_SUSPENDING, &data->flags); 4745 spin_unlock_irq(&data->txlock); 4746 schedule_work(&data->work); 4747 4748 return 0; 4749 4750 failed: 4751 usb_scuttle_anchored_urbs(&data->deferred); 4752 done: 4753 spin_lock_irq(&data->txlock); 4754 clear_bit(BTUSB_SUSPENDING, &data->flags); 4755 spin_unlock_irq(&data->txlock); 4756 4757 return err; 4758 } 4759 #endif 4760 4761 #ifdef CONFIG_DEV_COREDUMP 4762 static void btusb_coredump(struct device *dev) 4763 { 4764 struct btusb_data *data = dev_get_drvdata(dev); 4765 struct hci_dev *hdev = data->hdev; 4766 4767 if (hdev->dump.coredump) 4768 hdev->dump.coredump(hdev); 4769 } 4770 #endif 4771 4772 static struct usb_driver btusb_driver = { 4773 .name = "btusb", 4774 .probe = btusb_probe, 4775 .disconnect = btusb_disconnect, 4776 #ifdef CONFIG_PM 4777 .suspend = btusb_suspend, 4778 .resume = btusb_resume, 4779 #endif 4780 .id_table = btusb_table, 4781 .supports_autosuspend = 1, 4782 .disable_hub_initiated_lpm = 1, 4783 4784 #ifdef CONFIG_DEV_COREDUMP 4785 .drvwrap = { 4786 .driver = { 4787 .coredump = btusb_coredump, 4788 }, 4789 }, 4790 #endif 4791 }; 4792 4793 module_usb_driver(btusb_driver); 4794 4795 module_param(disable_scofix, bool, 0644); 4796 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4797 4798 module_param(force_scofix, bool, 0644); 4799 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4800 4801 module_param(enable_autosuspend, bool, 0644); 4802 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4803 4804 module_param(reset, bool, 0644); 4805 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4806 4807 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4808 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4809 MODULE_VERSION(VERSION); 4810 MODULE_LICENSE("GPL"); 4811