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