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