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 /* Parse and handle the return WMT event */ 2822 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; 2823 if (wmt_evt->whdr.op != hdr->op) { 2824 bt_dev_err(hdev, "Wrong op received %d expected %d", 2825 wmt_evt->whdr.op, hdr->op); 2826 err = -EIO; 2827 goto err_free_skb; 2828 } 2829 2830 switch (wmt_evt->whdr.op) { 2831 case BTMTK_WMT_SEMAPHORE: 2832 if (wmt_evt->whdr.flag == 2) 2833 status = BTMTK_WMT_PATCH_UNDONE; 2834 else 2835 status = BTMTK_WMT_PATCH_DONE; 2836 break; 2837 case BTMTK_WMT_FUNC_CTRL: 2838 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; 2839 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) 2840 status = BTMTK_WMT_ON_DONE; 2841 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) 2842 status = BTMTK_WMT_ON_PROGRESS; 2843 else 2844 status = BTMTK_WMT_ON_UNDONE; 2845 break; 2846 case BTMTK_WMT_PATCH_DWNLD: 2847 if (wmt_evt->whdr.flag == 2) 2848 status = BTMTK_WMT_PATCH_DONE; 2849 else if (wmt_evt->whdr.flag == 1) 2850 status = BTMTK_WMT_PATCH_PROGRESS; 2851 else 2852 status = BTMTK_WMT_PATCH_UNDONE; 2853 break; 2854 } 2855 2856 if (wmt_params->status) 2857 *wmt_params->status = status; 2858 2859 err_free_skb: 2860 kfree_skb(data->evt_skb); 2861 data->evt_skb = NULL; 2862 err_free_wc: 2863 kfree(wc); 2864 return err; 2865 } 2866 2867 static int btusb_mtk_func_query(struct hci_dev *hdev) 2868 { 2869 struct btmtk_hci_wmt_params wmt_params; 2870 int status, err; 2871 u8 param = 0; 2872 2873 /* Query whether the function is enabled */ 2874 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2875 wmt_params.flag = 4; 2876 wmt_params.dlen = sizeof(param); 2877 wmt_params.data = ¶m; 2878 wmt_params.status = &status; 2879 2880 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2881 if (err < 0) { 2882 bt_dev_err(hdev, "Failed to query function status (%d)", err); 2883 return err; 2884 } 2885 2886 return status; 2887 } 2888 2889 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) 2890 { 2891 struct hci_dev *hdev = data->hdev; 2892 int pipe, err; 2893 void *buf; 2894 2895 buf = kzalloc(4, GFP_KERNEL); 2896 if (!buf) 2897 return -ENOMEM; 2898 2899 put_unaligned_le32(val, buf); 2900 2901 pipe = usb_sndctrlpipe(data->udev, 0); 2902 err = usb_control_msg(data->udev, pipe, 0x02, 2903 0x5E, 2904 reg >> 16, reg & 0xffff, 2905 buf, 4, USB_CTRL_SET_TIMEOUT); 2906 if (err < 0) { 2907 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); 2908 goto err_free_buf; 2909 } 2910 2911 err_free_buf: 2912 kfree(buf); 2913 2914 return err; 2915 } 2916 2917 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2918 { 2919 struct hci_dev *hdev = data->hdev; 2920 int pipe, err; 2921 void *buf; 2922 2923 buf = kzalloc(4, GFP_KERNEL); 2924 if (!buf) 2925 return -ENOMEM; 2926 2927 pipe = usb_rcvctrlpipe(data->udev, 0); 2928 err = usb_control_msg(data->udev, pipe, 0x01, 2929 0xDE, 2930 reg >> 16, reg & 0xffff, 2931 buf, 4, USB_CTRL_SET_TIMEOUT); 2932 if (err < 0) { 2933 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); 2934 goto err_free_buf; 2935 } 2936 2937 *val = get_unaligned_le32(buf); 2938 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); 2939 2940 err_free_buf: 2941 kfree(buf); 2942 2943 return err; 2944 } 2945 2946 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2947 { 2948 int pipe, err, size = sizeof(u32); 2949 void *buf; 2950 2951 buf = kzalloc(size, GFP_KERNEL); 2952 if (!buf) 2953 return -ENOMEM; 2954 2955 pipe = usb_rcvctrlpipe(data->udev, 0); 2956 err = usb_control_msg(data->udev, pipe, 0x63, 2957 USB_TYPE_VENDOR | USB_DIR_IN, 2958 reg >> 16, reg & 0xffff, 2959 buf, size, USB_CTRL_SET_TIMEOUT); 2960 if (err < 0) 2961 goto err_free_buf; 2962 2963 *val = get_unaligned_le32(buf); 2964 2965 err_free_buf: 2966 kfree(buf); 2967 2968 return err; 2969 } 2970 2971 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) 2972 { 2973 return btusb_mtk_reg_read(data, reg, id); 2974 } 2975 2976 static u32 btusb_mtk_reset_done(struct hci_dev *hdev) 2977 { 2978 struct btusb_data *data = hci_get_drvdata(hdev); 2979 u32 val = 0; 2980 2981 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); 2982 2983 return val & MTK_BT_RST_DONE; 2984 } 2985 2986 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2987 { 2988 struct btusb_data *data = hci_get_drvdata(hdev); 2989 struct btmediatek_data *mediatek; 2990 u32 val; 2991 int err; 2992 2993 /* It's MediaTek specific bluetooth reset mechanism via USB */ 2994 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 2995 bt_dev_err(hdev, "last reset failed? Not resetting again"); 2996 return -EBUSY; 2997 } 2998 2999 err = usb_autopm_get_interface(data->intf); 3000 if (err < 0) 3001 return err; 3002 3003 btusb_stop_traffic(data); 3004 usb_kill_anchored_urbs(&data->tx_anchor); 3005 mediatek = hci_get_priv(hdev); 3006 3007 if (mediatek->dev_id == 0x7925) { 3008 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3009 val |= (1 << 5); 3010 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3011 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3012 val &= 0xFFFF00FF; 3013 val |= (1 << 13); 3014 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3015 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); 3016 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3017 val |= (1 << 0); 3018 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3019 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3020 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3021 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3022 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3023 msleep(100); 3024 } else { 3025 /* It's Device EndPoint Reset Option Register */ 3026 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); 3027 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3028 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); 3029 3030 /* Reset the bluetooth chip via USB interface. */ 3031 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); 3032 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3033 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3034 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3035 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3036 /* MT7921 need to delay 20ms between toggle reset bit */ 3037 msleep(20); 3038 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); 3039 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); 3040 } 3041 3042 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val, 3043 val & MTK_BT_RST_DONE, 20000, 1000000); 3044 if (err < 0) 3045 bt_dev_err(hdev, "Reset timeout"); 3046 3047 btusb_mtk_id_get(data, 0x70010200, &val); 3048 if (!val) 3049 bt_dev_err(hdev, "Can't get device id, subsys reset fail."); 3050 3051 usb_queue_reset_device(data->intf); 3052 3053 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); 3054 3055 return err; 3056 } 3057 3058 static int btusb_mtk_setup(struct hci_dev *hdev) 3059 { 3060 struct btusb_data *data = hci_get_drvdata(hdev); 3061 struct btmtk_hci_wmt_params wmt_params; 3062 ktime_t calltime, delta, rettime; 3063 struct btmtk_tci_sleep tci_sleep; 3064 unsigned long long duration; 3065 struct sk_buff *skb; 3066 const char *fwname; 3067 int err, status; 3068 u32 dev_id = 0; 3069 char fw_bin_name[64]; 3070 u32 fw_version = 0; 3071 u8 param; 3072 struct btmediatek_data *mediatek; 3073 3074 calltime = ktime_get(); 3075 3076 err = btusb_mtk_id_get(data, 0x80000008, &dev_id); 3077 if (err < 0) { 3078 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3079 return err; 3080 } 3081 3082 if (!dev_id || dev_id != 0x7663) { 3083 err = btusb_mtk_id_get(data, 0x70010200, &dev_id); 3084 if (err < 0) { 3085 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3086 return err; 3087 } 3088 err = btusb_mtk_id_get(data, 0x80021004, &fw_version); 3089 if (err < 0) { 3090 bt_dev_err(hdev, "Failed to get fw version (%d)", err); 3091 return err; 3092 } 3093 } 3094 3095 mediatek = hci_get_priv(hdev); 3096 mediatek->dev_id = dev_id; 3097 mediatek->reset_sync = btusb_mtk_reset; 3098 3099 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version); 3100 if (err < 0) 3101 bt_dev_err(hdev, "Failed to register coredump (%d)", err); 3102 3103 switch (dev_id) { 3104 case 0x7663: 3105 fwname = FIRMWARE_MT7663; 3106 break; 3107 case 0x7668: 3108 fwname = FIRMWARE_MT7668; 3109 break; 3110 case 0x7922: 3111 case 0x7961: 3112 case 0x7925: 3113 if (dev_id == 0x7925) 3114 snprintf(fw_bin_name, sizeof(fw_bin_name), 3115 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3116 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1); 3117 else 3118 snprintf(fw_bin_name, sizeof(fw_bin_name), 3119 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3120 dev_id & 0xffff, (fw_version & 0xff) + 1); 3121 3122 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name, 3123 btusb_mtk_hci_wmt_sync); 3124 if (err < 0) { 3125 bt_dev_err(hdev, "Failed to set up firmware (%d)", err); 3126 return err; 3127 } 3128 3129 /* It's Device EndPoint Reset Option Register */ 3130 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3131 3132 /* Enable Bluetooth protocol */ 3133 param = 1; 3134 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3135 wmt_params.flag = 0; 3136 wmt_params.dlen = sizeof(param); 3137 wmt_params.data = ¶m; 3138 wmt_params.status = NULL; 3139 3140 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3141 if (err < 0) { 3142 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3143 return err; 3144 } 3145 3146 hci_set_msft_opcode(hdev, 0xFD30); 3147 hci_set_aosp_capable(hdev); 3148 goto done; 3149 default: 3150 bt_dev_err(hdev, "Unsupported hardware variant (%08x)", 3151 dev_id); 3152 return -ENODEV; 3153 } 3154 3155 /* Query whether the firmware is already download */ 3156 wmt_params.op = BTMTK_WMT_SEMAPHORE; 3157 wmt_params.flag = 1; 3158 wmt_params.dlen = 0; 3159 wmt_params.data = NULL; 3160 wmt_params.status = &status; 3161 3162 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3163 if (err < 0) { 3164 bt_dev_err(hdev, "Failed to query firmware status (%d)", err); 3165 return err; 3166 } 3167 3168 if (status == BTMTK_WMT_PATCH_DONE) { 3169 bt_dev_info(hdev, "firmware already downloaded"); 3170 goto ignore_setup_fw; 3171 } 3172 3173 /* Setup a firmware which the device definitely requires */ 3174 err = btmtk_setup_firmware(hdev, fwname, 3175 btusb_mtk_hci_wmt_sync); 3176 if (err < 0) 3177 return err; 3178 3179 ignore_setup_fw: 3180 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, 3181 status < 0 || status != BTMTK_WMT_ON_PROGRESS, 3182 2000, 5000000); 3183 /* -ETIMEDOUT happens */ 3184 if (err < 0) 3185 return err; 3186 3187 /* The other errors happen in btusb_mtk_func_query */ 3188 if (status < 0) 3189 return status; 3190 3191 if (status == BTMTK_WMT_ON_DONE) { 3192 bt_dev_info(hdev, "function already on"); 3193 goto ignore_func_on; 3194 } 3195 3196 /* Enable Bluetooth protocol */ 3197 param = 1; 3198 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3199 wmt_params.flag = 0; 3200 wmt_params.dlen = sizeof(param); 3201 wmt_params.data = ¶m; 3202 wmt_params.status = NULL; 3203 3204 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3205 if (err < 0) { 3206 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3207 return err; 3208 } 3209 3210 ignore_func_on: 3211 /* Apply the low power environment setup */ 3212 tci_sleep.mode = 0x5; 3213 tci_sleep.duration = cpu_to_le16(0x640); 3214 tci_sleep.host_duration = cpu_to_le16(0x640); 3215 tci_sleep.host_wakeup_pin = 0; 3216 tci_sleep.time_compensation = 0; 3217 3218 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, 3219 HCI_INIT_TIMEOUT); 3220 if (IS_ERR(skb)) { 3221 err = PTR_ERR(skb); 3222 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); 3223 return err; 3224 } 3225 kfree_skb(skb); 3226 3227 done: 3228 rettime = ktime_get(); 3229 delta = ktime_sub(rettime, calltime); 3230 duration = (unsigned long long)ktime_to_ns(delta) >> 10; 3231 3232 bt_dev_info(hdev, "Device setup in %llu usecs", duration); 3233 3234 return 0; 3235 } 3236 3237 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3238 { 3239 struct btmtk_hci_wmt_params wmt_params; 3240 u8 param = 0; 3241 int err; 3242 3243 /* Disable the device */ 3244 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3245 wmt_params.flag = 0; 3246 wmt_params.dlen = sizeof(param); 3247 wmt_params.data = ¶m; 3248 wmt_params.status = NULL; 3249 3250 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3251 if (err < 0) { 3252 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3253 return err; 3254 } 3255 3256 return 0; 3257 } 3258 3259 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3260 { 3261 struct btusb_data *data = hci_get_drvdata(hdev); 3262 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); 3263 struct sk_buff *skb_cd; 3264 3265 switch (handle) { 3266 case 0xfc6f: /* Firmware dump from device */ 3267 /* When the firmware hangs, the device can no longer 3268 * suspend and thus disable auto-suspend. 3269 */ 3270 usb_disable_autosuspend(data->udev); 3271 3272 /* We need to forward the diagnostic packet to userspace daemon 3273 * for backward compatibility, so we have to clone the packet 3274 * extraly for the in-kernel coredump support. 3275 */ 3276 skb_cd = skb_clone(skb, GFP_ATOMIC); 3277 if (skb_cd) 3278 btmtk_process_coredump(hdev, skb_cd); 3279 3280 fallthrough; 3281 case 0x05ff: /* Firmware debug logging 1 */ 3282 case 0x05fe: /* Firmware debug logging 2 */ 3283 return hci_recv_diag(hdev, skb); 3284 } 3285 3286 return hci_recv_frame(hdev, skb); 3287 } 3288 3289 #ifdef CONFIG_PM 3290 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3291 static int marvell_config_oob_wake(struct hci_dev *hdev) 3292 { 3293 struct sk_buff *skb; 3294 struct btusb_data *data = hci_get_drvdata(hdev); 3295 struct device *dev = &data->udev->dev; 3296 u16 pin, gap, opcode; 3297 int ret; 3298 u8 cmd[5]; 3299 3300 /* Move on if no wakeup pin specified */ 3301 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3302 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3303 return 0; 3304 3305 /* Vendor specific command to configure a GPIO as wake-up pin */ 3306 opcode = hci_opcode_pack(0x3F, 0x59); 3307 cmd[0] = opcode & 0xFF; 3308 cmd[1] = opcode >> 8; 3309 cmd[2] = 2; /* length of parameters that follow */ 3310 cmd[3] = pin; 3311 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3312 3313 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3314 if (!skb) { 3315 bt_dev_err(hdev, "%s: No memory", __func__); 3316 return -ENOMEM; 3317 } 3318 3319 skb_put_data(skb, cmd, sizeof(cmd)); 3320 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3321 3322 ret = btusb_send_frame(hdev, skb); 3323 if (ret) { 3324 bt_dev_err(hdev, "%s: configuration failed", __func__); 3325 kfree_skb(skb); 3326 return ret; 3327 } 3328 3329 return 0; 3330 } 3331 #endif 3332 3333 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3334 const bdaddr_t *bdaddr) 3335 { 3336 struct sk_buff *skb; 3337 u8 buf[8]; 3338 long ret; 3339 3340 buf[0] = 0xfe; 3341 buf[1] = sizeof(bdaddr_t); 3342 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3343 3344 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3345 if (IS_ERR(skb)) { 3346 ret = PTR_ERR(skb); 3347 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3348 ret); 3349 return ret; 3350 } 3351 kfree_skb(skb); 3352 3353 return 0; 3354 } 3355 3356 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3357 const bdaddr_t *bdaddr) 3358 { 3359 struct sk_buff *skb; 3360 u8 buf[10]; 3361 long ret; 3362 3363 buf[0] = 0x01; 3364 buf[1] = 0x01; 3365 buf[2] = 0x00; 3366 buf[3] = sizeof(bdaddr_t); 3367 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3368 3369 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3370 if (IS_ERR(skb)) { 3371 ret = PTR_ERR(skb); 3372 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3373 return ret; 3374 } 3375 kfree_skb(skb); 3376 3377 return 0; 3378 } 3379 3380 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3381 const bdaddr_t *bdaddr) 3382 { 3383 struct sk_buff *skb; 3384 u8 buf[6]; 3385 long ret; 3386 3387 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3388 3389 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3390 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3391 if (IS_ERR(skb)) { 3392 ret = PTR_ERR(skb); 3393 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3394 return ret; 3395 } 3396 kfree_skb(skb); 3397 3398 return 0; 3399 } 3400 3401 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3402 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3403 #define QCA_MEMDUMP_VSE_CLASS 0x01 3404 #define QCA_MEMDUMP_MSG_TYPE 0x08 3405 #define QCA_MEMDUMP_PKT_SIZE 248 3406 #define QCA_LAST_SEQUENCE_NUM 0xffff 3407 3408 struct qca_dump_hdr { 3409 u8 vse_class; 3410 u8 msg_type; 3411 __le16 seqno; 3412 u8 reserved; 3413 union { 3414 u8 data[0]; 3415 struct { 3416 __le32 ram_dump_size; 3417 u8 data0[0]; 3418 } __packed; 3419 }; 3420 } __packed; 3421 3422 3423 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3424 { 3425 char buf[128]; 3426 struct btusb_data *btdata = hci_get_drvdata(hdev); 3427 3428 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3429 btdata->qca_dump.controller_id); 3430 skb_put_data(skb, buf, strlen(buf)); 3431 3432 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3433 btdata->qca_dump.fw_version); 3434 skb_put_data(skb, buf, strlen(buf)); 3435 3436 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3437 btusb_driver.name); 3438 skb_put_data(skb, buf, strlen(buf)); 3439 3440 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3441 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3442 skb_put_data(skb, buf, strlen(buf)); 3443 3444 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3445 hdev->lmp_subver); 3446 skb_put_data(skb, buf, strlen(buf)); 3447 } 3448 3449 static void btusb_coredump_qca(struct hci_dev *hdev) 3450 { 3451 static const u8 param[] = { 0x26 }; 3452 struct sk_buff *skb; 3453 3454 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT); 3455 if (IS_ERR(skb)) 3456 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb)); 3457 kfree_skb(skb); 3458 } 3459 3460 /* 3461 * ==0: not a dump pkt. 3462 * < 0: fails to handle a dump pkt 3463 * > 0: otherwise. 3464 */ 3465 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3466 { 3467 int ret = 1; 3468 u8 pkt_type; 3469 u8 *sk_ptr; 3470 unsigned int sk_len; 3471 u16 seqno; 3472 u32 dump_size; 3473 3474 struct hci_event_hdr *event_hdr; 3475 struct hci_acl_hdr *acl_hdr; 3476 struct qca_dump_hdr *dump_hdr; 3477 struct btusb_data *btdata = hci_get_drvdata(hdev); 3478 struct usb_device *udev = btdata->udev; 3479 3480 pkt_type = hci_skb_pkt_type(skb); 3481 sk_ptr = skb->data; 3482 sk_len = skb->len; 3483 3484 if (pkt_type == HCI_ACLDATA_PKT) { 3485 acl_hdr = hci_acl_hdr(skb); 3486 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3487 return 0; 3488 sk_ptr += HCI_ACL_HDR_SIZE; 3489 sk_len -= HCI_ACL_HDR_SIZE; 3490 event_hdr = (struct hci_event_hdr *)sk_ptr; 3491 } else { 3492 event_hdr = hci_event_hdr(skb); 3493 } 3494 3495 if ((event_hdr->evt != HCI_VENDOR_PKT) 3496 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3497 return 0; 3498 3499 sk_ptr += HCI_EVENT_HDR_SIZE; 3500 sk_len -= HCI_EVENT_HDR_SIZE; 3501 3502 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3503 if ((sk_len < offsetof(struct qca_dump_hdr, data)) 3504 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) 3505 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3506 return 0; 3507 3508 /*it is dump pkt now*/ 3509 seqno = le16_to_cpu(dump_hdr->seqno); 3510 if (seqno == 0) { 3511 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3512 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3513 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3514 ret = -EILSEQ; 3515 bt_dev_err(hdev, "Invalid memdump size(%u)", 3516 dump_size); 3517 goto out; 3518 } 3519 3520 ret = hci_devcd_init(hdev, dump_size); 3521 if (ret < 0) { 3522 bt_dev_err(hdev, "memdump init error(%d)", ret); 3523 goto out; 3524 } 3525 3526 btdata->qca_dump.ram_dump_size = dump_size; 3527 btdata->qca_dump.ram_dump_seqno = 0; 3528 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3529 sk_len -= offsetof(struct qca_dump_hdr, data0); 3530 3531 usb_disable_autosuspend(udev); 3532 bt_dev_info(hdev, "%s memdump size(%u)\n", 3533 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3534 dump_size); 3535 } else { 3536 sk_ptr += offsetof(struct qca_dump_hdr, data); 3537 sk_len -= offsetof(struct qca_dump_hdr, data); 3538 } 3539 3540 if (!btdata->qca_dump.ram_dump_size) { 3541 ret = -EINVAL; 3542 bt_dev_err(hdev, "memdump is not active"); 3543 goto out; 3544 } 3545 3546 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3547 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3548 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3549 bt_dev_err(hdev, 3550 "expected memdump seqno(%u) is not received(%u)\n", 3551 btdata->qca_dump.ram_dump_seqno, seqno); 3552 btdata->qca_dump.ram_dump_seqno = seqno; 3553 kfree_skb(skb); 3554 return ret; 3555 } 3556 3557 skb_pull(skb, skb->len - sk_len); 3558 hci_devcd_append(hdev, skb); 3559 btdata->qca_dump.ram_dump_seqno++; 3560 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3561 bt_dev_info(hdev, 3562 "memdump done: pkts(%u), total(%u)\n", 3563 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3564 3565 hci_devcd_complete(hdev); 3566 goto out; 3567 } 3568 return ret; 3569 3570 out: 3571 if (btdata->qca_dump.ram_dump_size) 3572 usb_enable_autosuspend(udev); 3573 btdata->qca_dump.ram_dump_size = 0; 3574 btdata->qca_dump.ram_dump_seqno = 0; 3575 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3576 3577 if (ret < 0) 3578 kfree_skb(skb); 3579 return ret; 3580 } 3581 3582 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3583 { 3584 if (handle_dump_pkt_qca(hdev, skb)) 3585 return 0; 3586 return hci_recv_frame(hdev, skb); 3587 } 3588 3589 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3590 { 3591 if (handle_dump_pkt_qca(hdev, skb)) 3592 return 0; 3593 return hci_recv_frame(hdev, skb); 3594 } 3595 3596 3597 #define QCA_DFU_PACKET_LEN 4096 3598 3599 #define QCA_GET_TARGET_VERSION 0x09 3600 #define QCA_CHECK_STATUS 0x05 3601 #define QCA_DFU_DOWNLOAD 0x01 3602 3603 #define QCA_SYSCFG_UPDATED 0x40 3604 #define QCA_PATCH_UPDATED 0x80 3605 #define QCA_DFU_TIMEOUT 3000 3606 #define QCA_FLAG_MULTI_NVM 0x80 3607 #define QCA_BT_RESET_WAIT_MS 100 3608 3609 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3610 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3611 3612 struct qca_version { 3613 __le32 rom_version; 3614 __le32 patch_version; 3615 __le32 ram_version; 3616 __u8 chip_id; 3617 __u8 platform_id; 3618 __le16 flag; 3619 __u8 reserved[4]; 3620 } __packed; 3621 3622 struct qca_rampatch_version { 3623 __le16 rom_version_high; 3624 __le16 rom_version_low; 3625 __le16 patch_version; 3626 } __packed; 3627 3628 struct qca_device_info { 3629 u32 rom_version; 3630 u8 rampatch_hdr; /* length of header in rampatch */ 3631 u8 nvm_hdr; /* length of header in NVM */ 3632 u8 ver_offset; /* offset of version structure in rampatch */ 3633 }; 3634 3635 static const struct qca_device_info qca_devices_table[] = { 3636 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3637 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3638 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3639 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3640 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3641 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3642 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3643 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3644 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3645 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3646 }; 3647 3648 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3649 void *data, u16 size) 3650 { 3651 int pipe, err; 3652 u8 *buf; 3653 3654 buf = kmalloc(size, GFP_KERNEL); 3655 if (!buf) 3656 return -ENOMEM; 3657 3658 /* Found some of USB hosts have IOT issues with ours so that we should 3659 * not wait until HCI layer is ready. 3660 */ 3661 pipe = usb_rcvctrlpipe(udev, 0); 3662 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3663 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3664 if (err < 0) { 3665 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3666 goto done; 3667 } 3668 3669 memcpy(data, buf, size); 3670 3671 done: 3672 kfree(buf); 3673 3674 return err; 3675 } 3676 3677 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3678 const struct firmware *firmware, 3679 size_t hdr_size) 3680 { 3681 struct btusb_data *btdata = hci_get_drvdata(hdev); 3682 struct usb_device *udev = btdata->udev; 3683 size_t count, size, sent = 0; 3684 int pipe, len, err; 3685 u8 *buf; 3686 3687 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3688 if (!buf) 3689 return -ENOMEM; 3690 3691 count = firmware->size; 3692 3693 size = min_t(size_t, count, hdr_size); 3694 memcpy(buf, firmware->data, size); 3695 3696 /* USB patches should go down to controller through USB path 3697 * because binary format fits to go down through USB channel. 3698 * USB control path is for patching headers and USB bulk is for 3699 * patch body. 3700 */ 3701 pipe = usb_sndctrlpipe(udev, 0); 3702 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3703 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3704 if (err < 0) { 3705 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3706 goto done; 3707 } 3708 3709 sent += size; 3710 count -= size; 3711 3712 /* ep2 need time to switch from function acl to function dfu, 3713 * so we add 20ms delay here. 3714 */ 3715 msleep(20); 3716 3717 while (count) { 3718 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3719 3720 memcpy(buf, firmware->data + sent, size); 3721 3722 pipe = usb_sndbulkpipe(udev, 0x02); 3723 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3724 QCA_DFU_TIMEOUT); 3725 if (err < 0) { 3726 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3727 sent, firmware->size, err); 3728 break; 3729 } 3730 3731 if (size != len) { 3732 bt_dev_err(hdev, "Failed to get bulk buffer"); 3733 err = -EILSEQ; 3734 break; 3735 } 3736 3737 sent += size; 3738 count -= size; 3739 } 3740 3741 done: 3742 kfree(buf); 3743 return err; 3744 } 3745 3746 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3747 struct qca_version *ver, 3748 const struct qca_device_info *info) 3749 { 3750 struct qca_rampatch_version *rver; 3751 const struct firmware *fw; 3752 u32 ver_rom, ver_patch, rver_rom; 3753 u16 rver_rom_low, rver_rom_high, rver_patch; 3754 char fwname[64]; 3755 int err; 3756 3757 ver_rom = le32_to_cpu(ver->rom_version); 3758 ver_patch = le32_to_cpu(ver->patch_version); 3759 3760 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3761 3762 err = request_firmware(&fw, fwname, &hdev->dev); 3763 if (err) { 3764 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3765 fwname, err); 3766 return err; 3767 } 3768 3769 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3770 3771 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3772 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3773 rver_patch = le16_to_cpu(rver->patch_version); 3774 3775 if (ver_rom & ~0xffffU) { 3776 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3777 rver_rom = rver_rom_high << 16 | rver_rom_low; 3778 } else { 3779 rver_rom = rver_rom_low; 3780 } 3781 3782 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3783 "firmware rome 0x%x build 0x%x", 3784 rver_rom, rver_patch, ver_rom, ver_patch); 3785 3786 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3787 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3788 err = -EINVAL; 3789 goto done; 3790 } 3791 3792 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3793 3794 done: 3795 release_firmware(fw); 3796 3797 return err; 3798 } 3799 3800 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3801 const struct qca_version *ver) 3802 { 3803 u32 rom_version = le32_to_cpu(ver->rom_version); 3804 u16 flag = le16_to_cpu(ver->flag); 3805 3806 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3807 /* The board_id should be split into two bytes 3808 * The 1st byte is chip ID, and the 2nd byte is platform ID 3809 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3810 * we have several platforms, and platform IDs are continuously added 3811 * Platform ID: 3812 * 0x00 is for Mobile 3813 * 0x01 is for X86 3814 * 0x02 is for Automotive 3815 * 0x03 is for Consumer electronic 3816 */ 3817 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3818 const char *variant; 3819 3820 switch (le32_to_cpu(ver->ram_version)) { 3821 case WCN6855_2_0_RAM_VERSION_GF: 3822 case WCN6855_2_1_RAM_VERSION_GF: 3823 variant = "_gf"; 3824 break; 3825 default: 3826 variant = ""; 3827 break; 3828 } 3829 3830 if (board_id == 0) { 3831 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3832 rom_version, variant); 3833 } else { 3834 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3835 rom_version, variant, board_id); 3836 } 3837 } else { 3838 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3839 rom_version); 3840 } 3841 3842 } 3843 3844 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3845 struct qca_version *ver, 3846 const struct qca_device_info *info) 3847 { 3848 const struct firmware *fw; 3849 char fwname[64]; 3850 int err; 3851 3852 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3853 3854 err = request_firmware(&fw, fwname, &hdev->dev); 3855 if (err) { 3856 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3857 fwname, err); 3858 return err; 3859 } 3860 3861 bt_dev_info(hdev, "using NVM file: %s", fwname); 3862 3863 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3864 3865 release_firmware(fw); 3866 3867 return err; 3868 } 3869 3870 /* identify the ROM version and check whether patches are needed */ 3871 static bool btusb_qca_need_patch(struct usb_device *udev) 3872 { 3873 struct qca_version ver; 3874 3875 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3876 sizeof(ver)) < 0) 3877 return false; 3878 /* only low ROM versions need patches */ 3879 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3880 } 3881 3882 static int btusb_setup_qca(struct hci_dev *hdev) 3883 { 3884 struct btusb_data *btdata = hci_get_drvdata(hdev); 3885 struct usb_device *udev = btdata->udev; 3886 const struct qca_device_info *info = NULL; 3887 struct qca_version ver; 3888 u32 ver_rom; 3889 u8 status; 3890 int i, err; 3891 3892 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3893 sizeof(ver)); 3894 if (err < 0) 3895 return err; 3896 3897 ver_rom = le32_to_cpu(ver.rom_version); 3898 3899 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3900 if (ver_rom == qca_devices_table[i].rom_version) 3901 info = &qca_devices_table[i]; 3902 } 3903 if (!info) { 3904 /* If the rom_version is not matched in the qca_devices_table 3905 * and the high ROM version is not zero, we assume this chip no 3906 * need to load the rampatch and nvm. 3907 */ 3908 if (ver_rom & ~0xffffU) 3909 return 0; 3910 3911 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3912 return -ENODEV; 3913 } 3914 3915 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3916 sizeof(status)); 3917 if (err < 0) 3918 return err; 3919 3920 if (!(status & QCA_PATCH_UPDATED)) { 3921 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3922 if (err < 0) 3923 return err; 3924 } 3925 3926 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3927 sizeof(ver)); 3928 if (err < 0) 3929 return err; 3930 3931 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3932 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3933 3934 if (!(status & QCA_SYSCFG_UPDATED)) { 3935 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3936 if (err < 0) 3937 return err; 3938 3939 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3940 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3941 * cause potential enable failure. 3942 */ 3943 if (info->rom_version >= 0x00130201) 3944 msleep(QCA_BT_RESET_WAIT_MS); 3945 } 3946 3947 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3948 * work with the likes of HSP/HFP mSBC. 3949 */ 3950 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3951 3952 return 0; 3953 } 3954 3955 static inline int __set_diag_interface(struct hci_dev *hdev) 3956 { 3957 struct btusb_data *data = hci_get_drvdata(hdev); 3958 struct usb_interface *intf = data->diag; 3959 int i; 3960 3961 if (!data->diag) 3962 return -ENODEV; 3963 3964 data->diag_tx_ep = NULL; 3965 data->diag_rx_ep = NULL; 3966 3967 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3968 struct usb_endpoint_descriptor *ep_desc; 3969 3970 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3971 3972 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3973 data->diag_tx_ep = ep_desc; 3974 continue; 3975 } 3976 3977 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3978 data->diag_rx_ep = ep_desc; 3979 continue; 3980 } 3981 } 3982 3983 if (!data->diag_tx_ep || !data->diag_rx_ep) { 3984 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3985 return -ENODEV; 3986 } 3987 3988 return 0; 3989 } 3990 3991 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3992 { 3993 struct btusb_data *data = hci_get_drvdata(hdev); 3994 struct sk_buff *skb; 3995 struct urb *urb; 3996 unsigned int pipe; 3997 3998 if (!data->diag_tx_ep) 3999 return ERR_PTR(-ENODEV); 4000 4001 urb = usb_alloc_urb(0, GFP_KERNEL); 4002 if (!urb) 4003 return ERR_PTR(-ENOMEM); 4004 4005 skb = bt_skb_alloc(2, GFP_KERNEL); 4006 if (!skb) { 4007 usb_free_urb(urb); 4008 return ERR_PTR(-ENOMEM); 4009 } 4010 4011 skb_put_u8(skb, 0xf0); 4012 skb_put_u8(skb, enable); 4013 4014 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 4015 4016 usb_fill_bulk_urb(urb, data->udev, pipe, 4017 skb->data, skb->len, btusb_tx_complete, skb); 4018 4019 skb->dev = (void *)hdev; 4020 4021 return urb; 4022 } 4023 4024 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 4025 { 4026 struct btusb_data *data = hci_get_drvdata(hdev); 4027 struct urb *urb; 4028 4029 if (!data->diag) 4030 return -ENODEV; 4031 4032 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4033 return -ENETDOWN; 4034 4035 urb = alloc_diag_urb(hdev, enable); 4036 if (IS_ERR(urb)) 4037 return PTR_ERR(urb); 4038 4039 return submit_or_queue_tx_urb(hdev, urb); 4040 } 4041 4042 #ifdef CONFIG_PM 4043 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 4044 { 4045 struct btusb_data *data = priv; 4046 4047 pm_wakeup_event(&data->udev->dev, 0); 4048 pm_system_wakeup(); 4049 4050 /* Disable only if not already disabled (keep it balanced) */ 4051 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4052 disable_irq_nosync(irq); 4053 disable_irq_wake(irq); 4054 } 4055 return IRQ_HANDLED; 4056 } 4057 4058 static const struct of_device_id btusb_match_table[] = { 4059 { .compatible = "usb1286,204e" }, 4060 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 4061 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 4062 { } 4063 }; 4064 MODULE_DEVICE_TABLE(of, btusb_match_table); 4065 4066 /* Use an oob wakeup pin? */ 4067 static int btusb_config_oob_wake(struct hci_dev *hdev) 4068 { 4069 struct btusb_data *data = hci_get_drvdata(hdev); 4070 struct device *dev = &data->udev->dev; 4071 int irq, ret; 4072 4073 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4074 4075 if (!of_match_device(btusb_match_table, dev)) 4076 return 0; 4077 4078 /* Move on if no IRQ specified */ 4079 irq = of_irq_get_byname(dev->of_node, "wakeup"); 4080 if (irq <= 0) { 4081 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 4082 return 0; 4083 } 4084 4085 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4086 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 4087 0, "OOB Wake-on-BT", data); 4088 if (ret) { 4089 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4090 return ret; 4091 } 4092 4093 ret = device_init_wakeup(dev, true); 4094 if (ret) { 4095 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4096 return ret; 4097 } 4098 4099 data->oob_wake_irq = irq; 4100 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4101 return 0; 4102 } 4103 #endif 4104 4105 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4106 { 4107 if (dmi_check_system(btusb_needs_reset_resume_table)) 4108 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4109 } 4110 4111 static bool btusb_wakeup(struct hci_dev *hdev) 4112 { 4113 struct btusb_data *data = hci_get_drvdata(hdev); 4114 4115 return device_may_wakeup(&data->udev->dev); 4116 } 4117 4118 static int btusb_shutdown_qca(struct hci_dev *hdev) 4119 { 4120 struct sk_buff *skb; 4121 4122 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 4123 if (IS_ERR(skb)) { 4124 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4125 return PTR_ERR(skb); 4126 } 4127 kfree_skb(skb); 4128 4129 return 0; 4130 } 4131 4132 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4133 size_t count, loff_t *ppos) 4134 { 4135 struct btusb_data *data = file->private_data; 4136 char buf[3]; 4137 4138 buf[0] = data->poll_sync ? 'Y' : 'N'; 4139 buf[1] = '\n'; 4140 buf[2] = '\0'; 4141 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4142 } 4143 4144 static ssize_t force_poll_sync_write(struct file *file, 4145 const char __user *user_buf, 4146 size_t count, loff_t *ppos) 4147 { 4148 struct btusb_data *data = file->private_data; 4149 bool enable; 4150 int err; 4151 4152 err = kstrtobool_from_user(user_buf, count, &enable); 4153 if (err) 4154 return err; 4155 4156 /* Only allow changes while the adapter is down */ 4157 if (test_bit(HCI_UP, &data->hdev->flags)) 4158 return -EPERM; 4159 4160 if (data->poll_sync == enable) 4161 return -EALREADY; 4162 4163 data->poll_sync = enable; 4164 4165 return count; 4166 } 4167 4168 static const struct file_operations force_poll_sync_fops = { 4169 .open = simple_open, 4170 .read = force_poll_sync_read, 4171 .write = force_poll_sync_write, 4172 .llseek = default_llseek, 4173 }; 4174 4175 static int btusb_probe(struct usb_interface *intf, 4176 const struct usb_device_id *id) 4177 { 4178 struct usb_endpoint_descriptor *ep_desc; 4179 struct gpio_desc *reset_gpio; 4180 struct btusb_data *data; 4181 struct hci_dev *hdev; 4182 unsigned ifnum_base; 4183 int i, err, priv_size; 4184 4185 BT_DBG("intf %p id %p", intf, id); 4186 4187 if ((id->driver_info & BTUSB_IFNUM_2) && 4188 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4189 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4190 return -ENODEV; 4191 4192 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4193 4194 if (!id->driver_info) { 4195 const struct usb_device_id *match; 4196 4197 match = usb_match_id(intf, quirks_table); 4198 if (match) 4199 id = match; 4200 } 4201 4202 if (id->driver_info == BTUSB_IGNORE) 4203 return -ENODEV; 4204 4205 if (id->driver_info & BTUSB_ATH3012) { 4206 struct usb_device *udev = interface_to_usbdev(intf); 4207 4208 /* Old firmware would otherwise let ath3k driver load 4209 * patch and sysconfig files 4210 */ 4211 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4212 !btusb_qca_need_patch(udev)) 4213 return -ENODEV; 4214 } 4215 4216 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 4217 if (!data) 4218 return -ENOMEM; 4219 4220 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4221 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4222 4223 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 4224 data->intr_ep = ep_desc; 4225 continue; 4226 } 4227 4228 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4229 data->bulk_tx_ep = ep_desc; 4230 continue; 4231 } 4232 4233 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4234 data->bulk_rx_ep = ep_desc; 4235 continue; 4236 } 4237 } 4238 4239 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 4240 return -ENODEV; 4241 4242 if (id->driver_info & BTUSB_AMP) { 4243 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4244 data->cmdreq = 0x2b; 4245 } else { 4246 data->cmdreq_type = USB_TYPE_CLASS; 4247 data->cmdreq = 0x00; 4248 } 4249 4250 data->udev = interface_to_usbdev(intf); 4251 data->intf = intf; 4252 4253 INIT_WORK(&data->work, btusb_work); 4254 INIT_WORK(&data->waker, btusb_waker); 4255 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4256 4257 skb_queue_head_init(&data->acl_q); 4258 4259 init_usb_anchor(&data->deferred); 4260 init_usb_anchor(&data->tx_anchor); 4261 spin_lock_init(&data->txlock); 4262 4263 init_usb_anchor(&data->intr_anchor); 4264 init_usb_anchor(&data->bulk_anchor); 4265 init_usb_anchor(&data->isoc_anchor); 4266 init_usb_anchor(&data->diag_anchor); 4267 init_usb_anchor(&data->ctrl_anchor); 4268 spin_lock_init(&data->rxlock); 4269 4270 priv_size = 0; 4271 4272 data->recv_event = hci_recv_frame; 4273 data->recv_bulk = btusb_recv_bulk; 4274 4275 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4276 /* Allocate extra space for Intel device */ 4277 priv_size += sizeof(struct btintel_data); 4278 4279 /* Override the rx handlers */ 4280 data->recv_event = btintel_recv_event; 4281 data->recv_bulk = btusb_recv_bulk_intel; 4282 } else if (id->driver_info & BTUSB_REALTEK) { 4283 /* Allocate extra space for Realtek device */ 4284 priv_size += sizeof(struct btrealtek_data); 4285 4286 data->recv_event = btusb_recv_event_realtek; 4287 } else if (id->driver_info & BTUSB_MEDIATEK) { 4288 /* Allocate extra space for Mediatek device */ 4289 priv_size += sizeof(struct btmediatek_data); 4290 } 4291 4292 data->recv_acl = hci_recv_frame; 4293 4294 hdev = hci_alloc_dev_priv(priv_size); 4295 if (!hdev) 4296 return -ENOMEM; 4297 4298 hdev->bus = HCI_USB; 4299 hci_set_drvdata(hdev, data); 4300 4301 if (id->driver_info & BTUSB_AMP) 4302 hdev->dev_type = HCI_AMP; 4303 else 4304 hdev->dev_type = HCI_PRIMARY; 4305 4306 data->hdev = hdev; 4307 4308 SET_HCIDEV_DEV(hdev, &intf->dev); 4309 4310 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4311 GPIOD_OUT_LOW); 4312 if (IS_ERR(reset_gpio)) { 4313 err = PTR_ERR(reset_gpio); 4314 goto out_free_dev; 4315 } else if (reset_gpio) { 4316 data->reset_gpio = reset_gpio; 4317 } 4318 4319 hdev->open = btusb_open; 4320 hdev->close = btusb_close; 4321 hdev->flush = btusb_flush; 4322 hdev->send = btusb_send_frame; 4323 hdev->notify = btusb_notify; 4324 hdev->wakeup = btusb_wakeup; 4325 4326 #ifdef CONFIG_PM 4327 err = btusb_config_oob_wake(hdev); 4328 if (err) 4329 goto out_free_dev; 4330 4331 /* Marvell devices may need a specific chip configuration */ 4332 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4333 err = marvell_config_oob_wake(hdev); 4334 if (err) 4335 goto out_free_dev; 4336 } 4337 #endif 4338 if (id->driver_info & BTUSB_CW6622) 4339 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4340 4341 if (id->driver_info & BTUSB_BCM2045) 4342 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4343 4344 if (id->driver_info & BTUSB_BCM92035) 4345 hdev->setup = btusb_setup_bcm92035; 4346 4347 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4348 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4349 hdev->manufacturer = 15; 4350 hdev->setup = btbcm_setup_patchram; 4351 hdev->set_diag = btusb_bcm_set_diag; 4352 hdev->set_bdaddr = btbcm_set_bdaddr; 4353 4354 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4355 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4356 } 4357 4358 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4359 (id->driver_info & BTUSB_BCM_APPLE)) { 4360 hdev->manufacturer = 15; 4361 hdev->setup = btbcm_setup_apple; 4362 hdev->set_diag = btusb_bcm_set_diag; 4363 4364 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4365 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4366 } 4367 4368 /* Combined Intel Device setup to support multiple setup routine */ 4369 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4370 err = btintel_configure_setup(hdev, btusb_driver.name); 4371 if (err) 4372 goto out_free_dev; 4373 4374 /* Transport specific configuration */ 4375 hdev->send = btusb_send_frame_intel; 4376 hdev->cmd_timeout = btusb_intel_cmd_timeout; 4377 4378 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4379 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4380 4381 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4382 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4383 4384 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4385 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4386 } 4387 4388 if (id->driver_info & BTUSB_MARVELL) 4389 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4390 4391 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4392 (id->driver_info & BTUSB_MEDIATEK)) { 4393 hdev->setup = btusb_mtk_setup; 4394 hdev->shutdown = btusb_mtk_shutdown; 4395 hdev->manufacturer = 70; 4396 hdev->cmd_timeout = btmtk_reset_sync; 4397 hdev->set_bdaddr = btmtk_set_bdaddr; 4398 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4399 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4400 data->recv_acl = btusb_recv_acl_mtk; 4401 } 4402 4403 if (id->driver_info & BTUSB_SWAVE) { 4404 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4405 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4406 } 4407 4408 if (id->driver_info & BTUSB_INTEL_BOOT) { 4409 hdev->manufacturer = 2; 4410 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4411 } 4412 4413 if (id->driver_info & BTUSB_ATH3012) { 4414 data->setup_on_usb = btusb_setup_qca; 4415 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4416 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4417 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4418 } 4419 4420 if (id->driver_info & BTUSB_QCA_ROME) { 4421 data->setup_on_usb = btusb_setup_qca; 4422 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4423 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4424 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4425 btusb_check_needs_reset_resume(intf); 4426 } 4427 4428 if (id->driver_info & BTUSB_QCA_WCN6855) { 4429 data->qca_dump.id_vendor = id->idVendor; 4430 data->qca_dump.id_product = id->idProduct; 4431 data->recv_event = btusb_recv_evt_qca; 4432 data->recv_acl = btusb_recv_acl_qca; 4433 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4434 data->setup_on_usb = btusb_setup_qca; 4435 hdev->shutdown = btusb_shutdown_qca; 4436 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4437 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4438 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4439 hci_set_msft_opcode(hdev, 0xFD70); 4440 } 4441 4442 if (id->driver_info & BTUSB_AMP) { 4443 /* AMP controllers do not support SCO packets */ 4444 data->isoc = NULL; 4445 } else { 4446 /* Interface orders are hardcoded in the specification */ 4447 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4448 data->isoc_ifnum = ifnum_base + 1; 4449 } 4450 4451 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4452 (id->driver_info & BTUSB_REALTEK)) { 4453 btrtl_set_driver_name(hdev, btusb_driver.name); 4454 hdev->setup = btusb_setup_realtek; 4455 hdev->shutdown = btrtl_shutdown_realtek; 4456 hdev->cmd_timeout = btusb_rtl_cmd_timeout; 4457 hdev->hw_error = btusb_rtl_hw_error; 4458 4459 /* Realtek devices need to set remote wakeup on auto-suspend */ 4460 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4461 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4462 } 4463 4464 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4465 /* Support is advertised, but not implemented */ 4466 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4467 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4468 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4469 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4470 } 4471 4472 if (!reset) 4473 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4474 4475 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4476 if (!disable_scofix) 4477 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4478 } 4479 4480 if (id->driver_info & BTUSB_BROKEN_ISOC) 4481 data->isoc = NULL; 4482 4483 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4484 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4485 4486 if (id->driver_info & BTUSB_VALID_LE_STATES) 4487 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); 4488 4489 if (id->driver_info & BTUSB_DIGIANSWER) { 4490 data->cmdreq_type = USB_TYPE_VENDOR; 4491 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4492 } 4493 4494 if (id->driver_info & BTUSB_CSR) { 4495 struct usb_device *udev = data->udev; 4496 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4497 4498 /* Old firmware would otherwise execute USB reset */ 4499 if (bcdDevice < 0x117) 4500 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4501 4502 /* This must be set first in case we disable it for fakes */ 4503 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4504 4505 /* Fake CSR devices with broken commands */ 4506 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4507 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4508 hdev->setup = btusb_setup_csr; 4509 } 4510 4511 if (id->driver_info & BTUSB_SNIFFER) { 4512 struct usb_device *udev = data->udev; 4513 4514 /* New sniffer firmware has crippled HCI interface */ 4515 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4516 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4517 } 4518 4519 if (id->driver_info & BTUSB_INTEL_BOOT) { 4520 /* A bug in the bootloader causes that interrupt interface is 4521 * only enabled after receiving SetInterface(0, AltSetting=0). 4522 */ 4523 err = usb_set_interface(data->udev, 0, 0); 4524 if (err < 0) { 4525 BT_ERR("failed to set interface 0, alt 0 %d", err); 4526 goto out_free_dev; 4527 } 4528 } 4529 4530 if (data->isoc) { 4531 err = usb_driver_claim_interface(&btusb_driver, 4532 data->isoc, data); 4533 if (err < 0) 4534 goto out_free_dev; 4535 } 4536 4537 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4538 if (!usb_driver_claim_interface(&btusb_driver, 4539 data->diag, data)) 4540 __set_diag_interface(hdev); 4541 else 4542 data->diag = NULL; 4543 } 4544 4545 if (enable_autosuspend) 4546 usb_enable_autosuspend(data->udev); 4547 4548 data->poll_sync = enable_poll_sync; 4549 4550 err = hci_register_dev(hdev); 4551 if (err < 0) 4552 goto out_free_dev; 4553 4554 usb_set_intfdata(intf, data); 4555 4556 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4557 &force_poll_sync_fops); 4558 4559 return 0; 4560 4561 out_free_dev: 4562 if (data->reset_gpio) 4563 gpiod_put(data->reset_gpio); 4564 hci_free_dev(hdev); 4565 return err; 4566 } 4567 4568 static void btusb_disconnect(struct usb_interface *intf) 4569 { 4570 struct btusb_data *data = usb_get_intfdata(intf); 4571 struct hci_dev *hdev; 4572 4573 BT_DBG("intf %p", intf); 4574 4575 if (!data) 4576 return; 4577 4578 hdev = data->hdev; 4579 usb_set_intfdata(data->intf, NULL); 4580 4581 if (data->isoc) 4582 usb_set_intfdata(data->isoc, NULL); 4583 4584 if (data->diag) 4585 usb_set_intfdata(data->diag, NULL); 4586 4587 hci_unregister_dev(hdev); 4588 4589 if (intf == data->intf) { 4590 if (data->isoc) 4591 usb_driver_release_interface(&btusb_driver, data->isoc); 4592 if (data->diag) 4593 usb_driver_release_interface(&btusb_driver, data->diag); 4594 } else if (intf == data->isoc) { 4595 if (data->diag) 4596 usb_driver_release_interface(&btusb_driver, data->diag); 4597 usb_driver_release_interface(&btusb_driver, data->intf); 4598 } else if (intf == data->diag) { 4599 usb_driver_release_interface(&btusb_driver, data->intf); 4600 if (data->isoc) 4601 usb_driver_release_interface(&btusb_driver, data->isoc); 4602 } 4603 4604 if (data->oob_wake_irq) 4605 device_init_wakeup(&data->udev->dev, false); 4606 4607 if (data->reset_gpio) 4608 gpiod_put(data->reset_gpio); 4609 4610 hci_free_dev(hdev); 4611 } 4612 4613 #ifdef CONFIG_PM 4614 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4615 { 4616 struct btusb_data *data = usb_get_intfdata(intf); 4617 4618 BT_DBG("intf %p", intf); 4619 4620 if (data->suspend_count++) 4621 return 0; 4622 4623 spin_lock_irq(&data->txlock); 4624 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4625 set_bit(BTUSB_SUSPENDING, &data->flags); 4626 spin_unlock_irq(&data->txlock); 4627 } else { 4628 spin_unlock_irq(&data->txlock); 4629 data->suspend_count--; 4630 return -EBUSY; 4631 } 4632 4633 cancel_work_sync(&data->work); 4634 4635 btusb_stop_traffic(data); 4636 usb_kill_anchored_urbs(&data->tx_anchor); 4637 4638 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4639 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4640 enable_irq_wake(data->oob_wake_irq); 4641 enable_irq(data->oob_wake_irq); 4642 } 4643 4644 /* For global suspend, Realtek devices lose the loaded fw 4645 * in them. But for autosuspend, firmware should remain. 4646 * Actually, it depends on whether the usb host sends 4647 * set feature (enable wakeup) or not. 4648 */ 4649 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4650 if (PMSG_IS_AUTO(message) && 4651 device_can_wakeup(&data->udev->dev)) 4652 data->udev->do_remote_wakeup = 1; 4653 else if (!PMSG_IS_AUTO(message) && 4654 !device_may_wakeup(&data->udev->dev)) { 4655 data->udev->do_remote_wakeup = 0; 4656 data->udev->reset_resume = 1; 4657 } 4658 } 4659 4660 return 0; 4661 } 4662 4663 static void play_deferred(struct btusb_data *data) 4664 { 4665 struct urb *urb; 4666 int err; 4667 4668 while ((urb = usb_get_from_anchor(&data->deferred))) { 4669 usb_anchor_urb(urb, &data->tx_anchor); 4670 4671 err = usb_submit_urb(urb, GFP_ATOMIC); 4672 if (err < 0) { 4673 if (err != -EPERM && err != -ENODEV) 4674 BT_ERR("%s urb %p submission failed (%d)", 4675 data->hdev->name, urb, -err); 4676 kfree(urb->setup_packet); 4677 usb_unanchor_urb(urb); 4678 usb_free_urb(urb); 4679 break; 4680 } 4681 4682 data->tx_in_flight++; 4683 usb_free_urb(urb); 4684 } 4685 4686 /* Cleanup the rest deferred urbs. */ 4687 while ((urb = usb_get_from_anchor(&data->deferred))) { 4688 kfree(urb->setup_packet); 4689 usb_free_urb(urb); 4690 } 4691 } 4692 4693 static int btusb_resume(struct usb_interface *intf) 4694 { 4695 struct btusb_data *data = usb_get_intfdata(intf); 4696 struct hci_dev *hdev = data->hdev; 4697 int err = 0; 4698 4699 BT_DBG("intf %p", intf); 4700 4701 if (--data->suspend_count) 4702 return 0; 4703 4704 /* Disable only if not already disabled (keep it balanced) */ 4705 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4706 disable_irq(data->oob_wake_irq); 4707 disable_irq_wake(data->oob_wake_irq); 4708 } 4709 4710 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4711 goto done; 4712 4713 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4714 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4715 if (err < 0) { 4716 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4717 goto failed; 4718 } 4719 } 4720 4721 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4722 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4723 if (err < 0) { 4724 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4725 goto failed; 4726 } 4727 4728 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4729 } 4730 4731 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4732 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4733 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4734 else 4735 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4736 } 4737 4738 spin_lock_irq(&data->txlock); 4739 play_deferred(data); 4740 clear_bit(BTUSB_SUSPENDING, &data->flags); 4741 spin_unlock_irq(&data->txlock); 4742 schedule_work(&data->work); 4743 4744 return 0; 4745 4746 failed: 4747 usb_scuttle_anchored_urbs(&data->deferred); 4748 done: 4749 spin_lock_irq(&data->txlock); 4750 clear_bit(BTUSB_SUSPENDING, &data->flags); 4751 spin_unlock_irq(&data->txlock); 4752 4753 return err; 4754 } 4755 #endif 4756 4757 #ifdef CONFIG_DEV_COREDUMP 4758 static void btusb_coredump(struct device *dev) 4759 { 4760 struct btusb_data *data = dev_get_drvdata(dev); 4761 struct hci_dev *hdev = data->hdev; 4762 4763 if (hdev->dump.coredump) 4764 hdev->dump.coredump(hdev); 4765 } 4766 #endif 4767 4768 static struct usb_driver btusb_driver = { 4769 .name = "btusb", 4770 .probe = btusb_probe, 4771 .disconnect = btusb_disconnect, 4772 #ifdef CONFIG_PM 4773 .suspend = btusb_suspend, 4774 .resume = btusb_resume, 4775 #endif 4776 .id_table = btusb_table, 4777 .supports_autosuspend = 1, 4778 .disable_hub_initiated_lpm = 1, 4779 4780 #ifdef CONFIG_DEV_COREDUMP 4781 .drvwrap = { 4782 .driver = { 4783 .coredump = btusb_coredump, 4784 }, 4785 }, 4786 #endif 4787 }; 4788 4789 module_usb_driver(btusb_driver); 4790 4791 module_param(disable_scofix, bool, 0644); 4792 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4793 4794 module_param(force_scofix, bool, 0644); 4795 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4796 4797 module_param(enable_autosuspend, bool, 0644); 4798 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4799 4800 module_param(reset, bool, 0644); 4801 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4802 4803 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4804 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4805 MODULE_VERSION(VERSION); 4806 MODULE_LICENSE("GPL"); 4807