1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Generic Bluetooth USB driver 5 * 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 7 */ 8 9 #include <linux/dmi.h> 10 #include <linux/module.h> 11 #include <linux/usb.h> 12 #include <linux/usb/quirks.h> 13 #include <linux/firmware.h> 14 #include <linux/iopoll.h> 15 #include <linux/of_device.h> 16 #include <linux/of_irq.h> 17 #include <linux/suspend.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/debugfs.h> 20 #include <asm/unaligned.h> 21 22 #include <net/bluetooth/bluetooth.h> 23 #include <net/bluetooth/hci_core.h> 24 25 #include "btintel.h" 26 #include "btbcm.h" 27 #include "btrtl.h" 28 #include "btmtk.h" 29 30 #define VERSION "0.8" 31 32 static bool disable_scofix; 33 static bool force_scofix; 34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 36 static bool reset = true; 37 38 static struct usb_driver btusb_driver; 39 40 #define BTUSB_IGNORE BIT(0) 41 #define BTUSB_DIGIANSWER BIT(1) 42 #define BTUSB_CSR BIT(2) 43 #define BTUSB_SNIFFER BIT(3) 44 #define BTUSB_BCM92035 BIT(4) 45 #define BTUSB_BROKEN_ISOC BIT(5) 46 #define BTUSB_WRONG_SCO_MTU BIT(6) 47 #define BTUSB_ATH3012 BIT(7) 48 #define BTUSB_INTEL_COMBINED BIT(8) 49 #define BTUSB_INTEL_BOOT BIT(9) 50 #define BTUSB_BCM_PATCHRAM BIT(10) 51 #define BTUSB_MARVELL BIT(11) 52 #define BTUSB_SWAVE BIT(12) 53 #define BTUSB_AMP BIT(13) 54 #define BTUSB_QCA_ROME BIT(14) 55 #define BTUSB_BCM_APPLE BIT(15) 56 #define BTUSB_REALTEK BIT(16) 57 #define BTUSB_BCM2045 BIT(17) 58 #define BTUSB_IFNUM_2 BIT(18) 59 #define BTUSB_CW6622 BIT(19) 60 #define BTUSB_MEDIATEK BIT(20) 61 #define BTUSB_WIDEBAND_SPEECH BIT(21) 62 #define BTUSB_VALID_LE_STATES BIT(22) 63 #define BTUSB_QCA_WCN6855 BIT(23) 64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 66 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 67 #define BTUSB_ACTIONS_SEMI BIT(27) 68 69 static const struct usb_device_id btusb_table[] = { 70 /* Generic Bluetooth USB device */ 71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 72 73 /* Generic Bluetooth AMP device */ 74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 75 76 /* Generic Bluetooth USB interface */ 77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 78 79 /* Apple-specific (Broadcom) devices */ 80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 82 83 /* MediaTek MT76x0E */ 84 { USB_DEVICE(0x0e8d, 0x763f) }, 85 86 /* Broadcom SoftSailing reporting vendor specific */ 87 { USB_DEVICE(0x0a5c, 0x21e1) }, 88 89 /* Apple MacBookPro 7,1 */ 90 { USB_DEVICE(0x05ac, 0x8213) }, 91 92 /* Apple iMac11,1 */ 93 { USB_DEVICE(0x05ac, 0x8215) }, 94 95 /* Apple MacBookPro6,2 */ 96 { USB_DEVICE(0x05ac, 0x8218) }, 97 98 /* Apple MacBookAir3,1, MacBookAir3,2 */ 99 { USB_DEVICE(0x05ac, 0x821b) }, 100 101 /* Apple MacBookAir4,1 */ 102 { USB_DEVICE(0x05ac, 0x821f) }, 103 104 /* Apple MacBookPro8,2 */ 105 { USB_DEVICE(0x05ac, 0x821a) }, 106 107 /* Apple MacMini5,1 */ 108 { USB_DEVICE(0x05ac, 0x8281) }, 109 110 /* AVM BlueFRITZ! USB v2.0 */ 111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 112 113 /* Bluetooth Ultraport Module from IBM */ 114 { USB_DEVICE(0x04bf, 0x030a) }, 115 116 /* ALPS Modules with non-standard id */ 117 { USB_DEVICE(0x044e, 0x3001) }, 118 { USB_DEVICE(0x044e, 0x3002) }, 119 120 /* Ericsson with non-standard id */ 121 { USB_DEVICE(0x0bdb, 0x1002) }, 122 123 /* Canyon CN-BTU1 with HID interfaces */ 124 { USB_DEVICE(0x0c10, 0x0000) }, 125 126 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 128 129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 131 .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* Broadcom BCM920703 (HTC Vive) */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Foxconn - Hon Hai */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Lite-On Technology - Broadcom based */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Broadcom devices with vendor specific id */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* ASUSTek Computer - Broadcom based */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* Belkin F8065bf - Broadcom based */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* IMC Networks - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* Dell Computer - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* Toshiba Corp - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Intel Bluetooth USB Bootloader (RAM module) */ 170 { USB_DEVICE(0x8087, 0x0a5a), 171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 172 173 { } /* Terminating entry */ 174 }; 175 176 MODULE_DEVICE_TABLE(usb, btusb_table); 177 178 static const struct usb_device_id quirks_table[] = { 179 /* CSR BlueCore devices */ 180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 181 182 /* Broadcom BCM2033 without firmware */ 183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 184 185 /* Broadcom BCM2045 devices */ 186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 187 188 /* Atheros 3011 with sflash firmware */ 189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 196 197 /* Atheros AR9285 Malbec with sflash firmware */ 198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 199 200 /* Atheros 3012 with sflash firmware */ 201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 251 252 /* Atheros AR5BBU12 with sflash firmware */ 253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 254 255 /* Atheros AR5BBU12 with sflash firmware */ 256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 258 259 /* QCA ROME chipset */ 260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 261 BTUSB_WIDEBAND_SPEECH }, 262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 263 BTUSB_WIDEBAND_SPEECH }, 264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 265 BTUSB_WIDEBAND_SPEECH }, 266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 267 BTUSB_WIDEBAND_SPEECH }, 268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 269 BTUSB_WIDEBAND_SPEECH }, 270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 271 BTUSB_WIDEBAND_SPEECH }, 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 273 BTUSB_WIDEBAND_SPEECH }, 274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 275 BTUSB_WIDEBAND_SPEECH }, 276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 299 /* QCA WCN6855 chipset */ 300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 301 BTUSB_WIDEBAND_SPEECH | 302 BTUSB_VALID_LE_STATES }, 303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 304 BTUSB_WIDEBAND_SPEECH | 305 BTUSB_VALID_LE_STATES }, 306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 307 BTUSB_WIDEBAND_SPEECH | 308 BTUSB_VALID_LE_STATES }, 309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 310 BTUSB_WIDEBAND_SPEECH | 311 BTUSB_VALID_LE_STATES }, 312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 313 BTUSB_WIDEBAND_SPEECH | 314 BTUSB_VALID_LE_STATES }, 315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH | 317 BTUSB_VALID_LE_STATES }, 318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 319 BTUSB_WIDEBAND_SPEECH | 320 BTUSB_VALID_LE_STATES }, 321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH | 323 BTUSB_VALID_LE_STATES }, 324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH | 326 BTUSB_VALID_LE_STATES }, 327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH | 329 BTUSB_VALID_LE_STATES }, 330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH | 332 BTUSB_VALID_LE_STATES }, 333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH | 335 BTUSB_VALID_LE_STATES }, 336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH | 338 BTUSB_VALID_LE_STATES }, 339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH | 341 BTUSB_VALID_LE_STATES }, 342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH | 344 BTUSB_VALID_LE_STATES }, 345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH | 347 BTUSB_VALID_LE_STATES }, 348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH | 350 BTUSB_VALID_LE_STATES }, 351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH | 353 BTUSB_VALID_LE_STATES }, 354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH | 356 BTUSB_VALID_LE_STATES }, 357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH | 359 BTUSB_VALID_LE_STATES }, 360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH | 362 BTUSB_VALID_LE_STATES }, 363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH | 365 BTUSB_VALID_LE_STATES }, 366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH | 368 BTUSB_VALID_LE_STATES }, 369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH | 371 BTUSB_VALID_LE_STATES }, 372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH | 374 BTUSB_VALID_LE_STATES }, 375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH | 377 BTUSB_VALID_LE_STATES }, 378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 379 BTUSB_WIDEBAND_SPEECH | 380 BTUSB_VALID_LE_STATES }, 381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH | 383 BTUSB_VALID_LE_STATES }, 384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH | 386 BTUSB_VALID_LE_STATES }, 387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 388 BTUSB_WIDEBAND_SPEECH | 389 BTUSB_VALID_LE_STATES }, 390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH | 392 BTUSB_VALID_LE_STATES }, 393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 394 BTUSB_WIDEBAND_SPEECH | 395 BTUSB_VALID_LE_STATES }, 396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH | 398 BTUSB_VALID_LE_STATES }, 399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH | 401 BTUSB_VALID_LE_STATES }, 402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH | 404 BTUSB_VALID_LE_STATES }, 405 406 /* QCA WCN785x chipset */ 407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH | 409 BTUSB_VALID_LE_STATES }, 410 411 /* Broadcom BCM2035 */ 412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 415 416 /* Broadcom BCM2045 */ 417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 420 /* IBM/Lenovo ThinkPad with Broadcom chip */ 421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 424 /* HP laptop with Broadcom chip */ 425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 426 427 /* Dell laptop with Broadcom chip */ 428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 429 430 /* Dell Wireless 370 and 410 devices */ 431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 434 /* Belkin F8T012 and F8T013 devices */ 435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 438 /* Asus WL-BTD202 device */ 439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 441 /* Kensington Bluetooth USB adapter */ 442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 443 444 /* RTX Telecom based adapters with buggy SCO support */ 445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 447 448 /* CONWISE Technology based adapters with buggy SCO support */ 449 { USB_DEVICE(0x0e5e, 0x6622), 450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 451 452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 454 455 /* Digianswer devices */ 456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 458 459 /* CSR BlueCore Bluetooth Sniffer */ 460 { USB_DEVICE(0x0a12, 0x0002), 461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 462 463 /* Frontline ComProbe Bluetooth Sniffer */ 464 { USB_DEVICE(0x16d3, 0x0002), 465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 466 467 /* Marvell Bluetooth devices */ 468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 471 472 /* Intel Bluetooth devices */ 473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 480 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 481 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 482 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 483 BTUSB_INTEL_NO_WBS_SUPPORT | 484 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 485 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 486 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 487 BTUSB_INTEL_NO_WBS_SUPPORT | 488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 489 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 490 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 492 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 493 494 /* Other Intel Bluetooth devices */ 495 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 496 .driver_info = BTUSB_IGNORE }, 497 498 /* Realtek 8821CE Bluetooth devices */ 499 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 500 BTUSB_WIDEBAND_SPEECH }, 501 502 /* Realtek 8822CE Bluetooth devices */ 503 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 504 BTUSB_WIDEBAND_SPEECH }, 505 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 506 BTUSB_WIDEBAND_SPEECH }, 507 508 /* Realtek 8822CU Bluetooth devices */ 509 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 510 BTUSB_WIDEBAND_SPEECH }, 511 512 /* Realtek 8852AE Bluetooth devices */ 513 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 514 BTUSB_WIDEBAND_SPEECH }, 515 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 516 BTUSB_WIDEBAND_SPEECH }, 517 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 518 BTUSB_WIDEBAND_SPEECH }, 519 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 520 BTUSB_WIDEBAND_SPEECH }, 521 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 522 BTUSB_WIDEBAND_SPEECH }, 523 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 524 BTUSB_WIDEBAND_SPEECH }, 525 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 526 BTUSB_WIDEBAND_SPEECH }, 527 528 /* Realtek 8852CE Bluetooth devices */ 529 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 530 BTUSB_WIDEBAND_SPEECH }, 531 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 532 BTUSB_WIDEBAND_SPEECH }, 533 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 534 BTUSB_WIDEBAND_SPEECH }, 535 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 536 BTUSB_WIDEBAND_SPEECH }, 537 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 538 BTUSB_WIDEBAND_SPEECH }, 539 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 540 BTUSB_WIDEBAND_SPEECH }, 541 542 /* Realtek 8852BE Bluetooth devices */ 543 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 544 BTUSB_WIDEBAND_SPEECH }, 545 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 546 BTUSB_WIDEBAND_SPEECH }, 547 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 548 BTUSB_WIDEBAND_SPEECH }, 549 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 550 BTUSB_WIDEBAND_SPEECH }, 551 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 552 BTUSB_WIDEBAND_SPEECH }, 553 554 /* Realtek Bluetooth devices */ 555 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 556 .driver_info = BTUSB_REALTEK }, 557 558 /* MediaTek Bluetooth devices */ 559 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 560 .driver_info = BTUSB_MEDIATEK | 561 BTUSB_WIDEBAND_SPEECH | 562 BTUSB_VALID_LE_STATES }, 563 564 /* Additional MediaTek MT7615E Bluetooth devices */ 565 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 566 567 /* Additional MediaTek MT7663 Bluetooth devices */ 568 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 569 BTUSB_WIDEBAND_SPEECH | 570 BTUSB_VALID_LE_STATES }, 571 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 572 BTUSB_WIDEBAND_SPEECH | 573 BTUSB_VALID_LE_STATES }, 574 575 /* Additional MediaTek MT7668 Bluetooth devices */ 576 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 577 BTUSB_WIDEBAND_SPEECH | 578 BTUSB_VALID_LE_STATES }, 579 580 /* Additional MediaTek MT7921 Bluetooth devices */ 581 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 582 BTUSB_WIDEBAND_SPEECH | 583 BTUSB_VALID_LE_STATES }, 584 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 585 BTUSB_WIDEBAND_SPEECH | 586 BTUSB_VALID_LE_STATES }, 587 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 588 BTUSB_WIDEBAND_SPEECH | 589 BTUSB_VALID_LE_STATES }, 590 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 591 BTUSB_WIDEBAND_SPEECH | 592 BTUSB_VALID_LE_STATES }, 593 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 594 BTUSB_WIDEBAND_SPEECH | 595 BTUSB_VALID_LE_STATES }, 596 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 597 BTUSB_WIDEBAND_SPEECH | 598 BTUSB_VALID_LE_STATES }, 599 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 600 BTUSB_WIDEBAND_SPEECH | 601 BTUSB_VALID_LE_STATES }, 602 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 603 BTUSB_WIDEBAND_SPEECH | 604 BTUSB_VALID_LE_STATES }, 605 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 606 BTUSB_WIDEBAND_SPEECH | 607 BTUSB_VALID_LE_STATES }, 608 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 609 BTUSB_WIDEBAND_SPEECH | 610 BTUSB_VALID_LE_STATES }, 611 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 612 BTUSB_WIDEBAND_SPEECH | 613 BTUSB_VALID_LE_STATES }, 614 615 /* MediaTek MT7922A Bluetooth devices */ 616 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 617 BTUSB_WIDEBAND_SPEECH | 618 BTUSB_VALID_LE_STATES }, 619 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 620 BTUSB_WIDEBAND_SPEECH | 621 BTUSB_VALID_LE_STATES }, 622 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 623 BTUSB_WIDEBAND_SPEECH | 624 BTUSB_VALID_LE_STATES }, 625 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 626 BTUSB_WIDEBAND_SPEECH | 627 BTUSB_VALID_LE_STATES }, 628 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 629 BTUSB_WIDEBAND_SPEECH | 630 BTUSB_VALID_LE_STATES }, 631 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 632 BTUSB_WIDEBAND_SPEECH | 633 BTUSB_VALID_LE_STATES }, 634 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 635 BTUSB_WIDEBAND_SPEECH | 636 BTUSB_VALID_LE_STATES }, 637 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 638 BTUSB_WIDEBAND_SPEECH | 639 BTUSB_VALID_LE_STATES }, 640 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 641 BTUSB_WIDEBAND_SPEECH | 642 BTUSB_VALID_LE_STATES }, 643 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 644 BTUSB_WIDEBAND_SPEECH | 645 BTUSB_VALID_LE_STATES }, 646 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 647 BTUSB_WIDEBAND_SPEECH | 648 BTUSB_VALID_LE_STATES }, 649 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 650 BTUSB_WIDEBAND_SPEECH | 651 BTUSB_VALID_LE_STATES }, 652 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 653 BTUSB_WIDEBAND_SPEECH | 654 BTUSB_VALID_LE_STATES }, 655 656 /* Additional Realtek 8723AE Bluetooth devices */ 657 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 658 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 659 660 /* Additional Realtek 8723BE Bluetooth devices */ 661 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 662 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 663 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 664 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 665 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 666 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 667 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 668 669 /* Additional Realtek 8723BU Bluetooth devices */ 670 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 671 672 /* Additional Realtek 8723DE Bluetooth devices */ 673 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 674 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 675 676 /* Additional Realtek 8761BUV Bluetooth devices */ 677 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 678 BTUSB_WIDEBAND_SPEECH }, 679 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 680 BTUSB_WIDEBAND_SPEECH }, 681 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 682 BTUSB_WIDEBAND_SPEECH }, 683 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 684 BTUSB_WIDEBAND_SPEECH }, 685 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 686 BTUSB_WIDEBAND_SPEECH }, 687 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 688 BTUSB_WIDEBAND_SPEECH }, 689 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 690 BTUSB_WIDEBAND_SPEECH }, 691 692 /* Additional Realtek 8821AE Bluetooth devices */ 693 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 694 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 695 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 696 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 697 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 698 699 /* Additional Realtek 8822BE Bluetooth devices */ 700 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 701 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 702 703 /* Additional Realtek 8822CE Bluetooth devices */ 704 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 705 BTUSB_WIDEBAND_SPEECH }, 706 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 707 BTUSB_WIDEBAND_SPEECH }, 708 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 709 BTUSB_WIDEBAND_SPEECH }, 710 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 711 BTUSB_WIDEBAND_SPEECH }, 712 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 713 BTUSB_WIDEBAND_SPEECH }, 714 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 715 BTUSB_WIDEBAND_SPEECH }, 716 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 717 BTUSB_WIDEBAND_SPEECH }, 718 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 719 BTUSB_WIDEBAND_SPEECH }, 720 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 721 BTUSB_WIDEBAND_SPEECH }, 722 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 723 BTUSB_WIDEBAND_SPEECH }, 724 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 725 BTUSB_WIDEBAND_SPEECH }, 726 727 /* Actions Semiconductor ATS2851 based devices */ 728 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 729 730 /* Silicon Wave based devices */ 731 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 732 733 { } /* Terminating entry */ 734 }; 735 736 /* The Bluetooth USB module build into some devices needs to be reset on resume, 737 * this is a problem with the platform (likely shutting off all power) not with 738 * the module itself. So we use a DMI list to match known broken platforms. 739 */ 740 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 741 { 742 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 743 .matches = { 744 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 745 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 746 }, 747 }, 748 { 749 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 750 .matches = { 751 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 752 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 753 }, 754 }, 755 { 756 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 757 .matches = { 758 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 759 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 760 }, 761 }, 762 {} 763 }; 764 765 struct qca_dump_info { 766 /* fields for dump collection */ 767 u16 id_vendor; 768 u16 id_product; 769 u32 fw_version; 770 u32 controller_id; 771 u32 ram_dump_size; 772 u16 ram_dump_seqno; 773 }; 774 775 #define BTUSB_MAX_ISOC_FRAMES 10 776 777 #define BTUSB_INTR_RUNNING 0 778 #define BTUSB_BULK_RUNNING 1 779 #define BTUSB_ISOC_RUNNING 2 780 #define BTUSB_SUSPENDING 3 781 #define BTUSB_DID_ISO_RESUME 4 782 #define BTUSB_BOOTLOADER 5 783 #define BTUSB_DOWNLOADING 6 784 #define BTUSB_FIRMWARE_LOADED 7 785 #define BTUSB_FIRMWARE_FAILED 8 786 #define BTUSB_BOOTING 9 787 #define BTUSB_DIAG_RUNNING 10 788 #define BTUSB_OOB_WAKE_ENABLED 11 789 #define BTUSB_HW_RESET_ACTIVE 12 790 #define BTUSB_TX_WAIT_VND_EVT 13 791 #define BTUSB_WAKEUP_AUTOSUSPEND 14 792 #define BTUSB_USE_ALT3_FOR_WBS 15 793 #define BTUSB_ALT6_CONTINUOUS_TX 16 794 #define BTUSB_HW_SSR_ACTIVE 17 795 796 struct btusb_data { 797 struct hci_dev *hdev; 798 struct usb_device *udev; 799 struct usb_interface *intf; 800 struct usb_interface *isoc; 801 struct usb_interface *diag; 802 unsigned isoc_ifnum; 803 804 unsigned long flags; 805 806 bool poll_sync; 807 int intr_interval; 808 struct work_struct work; 809 struct work_struct waker; 810 struct delayed_work rx_work; 811 812 struct sk_buff_head acl_q; 813 814 struct usb_anchor deferred; 815 struct usb_anchor tx_anchor; 816 int tx_in_flight; 817 spinlock_t txlock; 818 819 struct usb_anchor intr_anchor; 820 struct usb_anchor bulk_anchor; 821 struct usb_anchor isoc_anchor; 822 struct usb_anchor diag_anchor; 823 struct usb_anchor ctrl_anchor; 824 spinlock_t rxlock; 825 826 struct sk_buff *evt_skb; 827 struct sk_buff *acl_skb; 828 struct sk_buff *sco_skb; 829 830 struct usb_endpoint_descriptor *intr_ep; 831 struct usb_endpoint_descriptor *bulk_tx_ep; 832 struct usb_endpoint_descriptor *bulk_rx_ep; 833 struct usb_endpoint_descriptor *isoc_tx_ep; 834 struct usb_endpoint_descriptor *isoc_rx_ep; 835 struct usb_endpoint_descriptor *diag_tx_ep; 836 struct usb_endpoint_descriptor *diag_rx_ep; 837 838 struct gpio_desc *reset_gpio; 839 840 __u8 cmdreq_type; 841 __u8 cmdreq; 842 843 unsigned int sco_num; 844 unsigned int air_mode; 845 bool usb_alt6_packet_flow; 846 int isoc_altsetting; 847 int suspend_count; 848 849 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 850 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 851 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 852 853 int (*setup_on_usb)(struct hci_dev *hdev); 854 855 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 856 unsigned cmd_timeout_cnt; 857 858 struct qca_dump_info qca_dump; 859 }; 860 861 static void btusb_reset(struct hci_dev *hdev) 862 { 863 struct btusb_data *data; 864 int err; 865 866 if (hdev->reset) { 867 hdev->reset(hdev); 868 return; 869 } 870 871 data = hci_get_drvdata(hdev); 872 /* This is not an unbalanced PM reference since the device will reset */ 873 err = usb_autopm_get_interface(data->intf); 874 if (err) { 875 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 876 return; 877 } 878 879 bt_dev_err(hdev, "Resetting usb device."); 880 usb_queue_reset_device(data->intf); 881 } 882 883 static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 884 { 885 struct btusb_data *data = hci_get_drvdata(hdev); 886 struct gpio_desc *reset_gpio = data->reset_gpio; 887 struct btintel_data *intel_data = hci_get_priv(hdev); 888 889 if (++data->cmd_timeout_cnt < 5) 890 return; 891 892 if (intel_data->acpi_reset_method) { 893 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 894 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 895 return; 896 } 897 898 bt_dev_err(hdev, "Initiating acpi reset method"); 899 /* If ACPI reset method fails, lets try with legacy GPIO 900 * toggling 901 */ 902 if (!intel_data->acpi_reset_method(hdev)) { 903 return; 904 } 905 } 906 907 if (!reset_gpio) { 908 btusb_reset(hdev); 909 return; 910 } 911 912 /* 913 * Toggle the hard reset line if the platform provides one. The reset 914 * is going to yank the device off the USB and then replug. So doing 915 * once is enough. The cleanup is handled correctly on the way out 916 * (standard USB disconnect), and the new device is detected cleanly 917 * and bound to the driver again like it should be. 918 */ 919 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 920 bt_dev_err(hdev, "last reset failed? Not resetting again"); 921 return; 922 } 923 924 bt_dev_err(hdev, "Initiating HW reset via gpio"); 925 gpiod_set_value_cansleep(reset_gpio, 1); 926 msleep(100); 927 gpiod_set_value_cansleep(reset_gpio, 0); 928 } 929 930 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 931 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 932 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 933 934 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 935 936 struct rtk_dev_coredump_hdr { 937 u8 type; 938 u8 code; 939 u8 reserved[2]; 940 } __packed; 941 942 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 943 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 944 { 945 struct sk_buff *skb; 946 947 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 948 if (!skb) 949 return; 950 951 skb_put_data(skb, hdr, sizeof(*hdr)); 952 if (len) 953 skb_put_data(skb, buf, len); 954 955 if (!hci_devcd_init(hdev, skb->len)) { 956 hci_devcd_append(hdev, skb); 957 hci_devcd_complete(hdev); 958 } else { 959 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 960 kfree_skb(skb); 961 } 962 } 963 964 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) 965 { 966 struct btusb_data *data = hci_get_drvdata(hdev); 967 struct gpio_desc *reset_gpio = data->reset_gpio; 968 struct rtk_dev_coredump_hdr hdr = { 969 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 970 }; 971 972 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 973 974 if (++data->cmd_timeout_cnt < 5) 975 return; 976 977 if (!reset_gpio) { 978 btusb_reset(hdev); 979 return; 980 } 981 982 /* Toggle the hard reset line. The Realtek device is going to 983 * yank itself off the USB and then replug. The cleanup is handled 984 * correctly on the way out (standard USB disconnect), and the new 985 * device is detected cleanly and bound to the driver again like 986 * it should be. 987 */ 988 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 989 bt_dev_err(hdev, "last reset failed? Not resetting again"); 990 return; 991 } 992 993 bt_dev_err(hdev, "Reset Realtek device via gpio"); 994 gpiod_set_value_cansleep(reset_gpio, 1); 995 msleep(200); 996 gpiod_set_value_cansleep(reset_gpio, 0); 997 } 998 999 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1000 { 1001 struct rtk_dev_coredump_hdr hdr = { 1002 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1003 .code = code, 1004 }; 1005 1006 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1007 1008 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1009 } 1010 1011 static void btusb_qca_cmd_timeout(struct hci_dev *hdev) 1012 { 1013 struct btusb_data *data = hci_get_drvdata(hdev); 1014 struct gpio_desc *reset_gpio = data->reset_gpio; 1015 1016 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1017 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout"); 1018 return; 1019 } 1020 1021 if (++data->cmd_timeout_cnt < 5) 1022 return; 1023 1024 if (reset_gpio) { 1025 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1026 1027 /* Toggle the hard reset line. The qca bt device is going to 1028 * yank itself off the USB and then replug. The cleanup is handled 1029 * correctly on the way out (standard USB disconnect), and the new 1030 * device is detected cleanly and bound to the driver again like 1031 * it should be. 1032 */ 1033 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1034 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1035 return; 1036 } 1037 1038 gpiod_set_value_cansleep(reset_gpio, 0); 1039 msleep(200); 1040 gpiod_set_value_cansleep(reset_gpio, 1); 1041 1042 return; 1043 } 1044 1045 btusb_reset(hdev); 1046 } 1047 1048 static inline void btusb_free_frags(struct btusb_data *data) 1049 { 1050 unsigned long flags; 1051 1052 spin_lock_irqsave(&data->rxlock, flags); 1053 1054 dev_kfree_skb_irq(data->evt_skb); 1055 data->evt_skb = NULL; 1056 1057 dev_kfree_skb_irq(data->acl_skb); 1058 data->acl_skb = NULL; 1059 1060 dev_kfree_skb_irq(data->sco_skb); 1061 data->sco_skb = NULL; 1062 1063 spin_unlock_irqrestore(&data->rxlock, flags); 1064 } 1065 1066 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1067 { 1068 if (data->intr_interval) { 1069 /* Trigger dequeue immediatelly if an event is received */ 1070 schedule_delayed_work(&data->rx_work, 0); 1071 } 1072 1073 return data->recv_event(data->hdev, skb); 1074 } 1075 1076 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1077 { 1078 struct sk_buff *skb; 1079 unsigned long flags; 1080 int err = 0; 1081 1082 spin_lock_irqsave(&data->rxlock, flags); 1083 skb = data->evt_skb; 1084 1085 while (count) { 1086 int len; 1087 1088 if (!skb) { 1089 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1090 if (!skb) { 1091 err = -ENOMEM; 1092 break; 1093 } 1094 1095 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1096 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1097 } 1098 1099 len = min_t(uint, hci_skb_expect(skb), count); 1100 skb_put_data(skb, buffer, len); 1101 1102 count -= len; 1103 buffer += len; 1104 hci_skb_expect(skb) -= len; 1105 1106 if (skb->len == HCI_EVENT_HDR_SIZE) { 1107 /* Complete event header */ 1108 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1109 1110 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1111 kfree_skb(skb); 1112 skb = NULL; 1113 1114 err = -EILSEQ; 1115 break; 1116 } 1117 } 1118 1119 if (!hci_skb_expect(skb)) { 1120 /* Complete frame */ 1121 btusb_recv_event(data, skb); 1122 skb = NULL; 1123 } 1124 } 1125 1126 data->evt_skb = skb; 1127 spin_unlock_irqrestore(&data->rxlock, flags); 1128 1129 return err; 1130 } 1131 1132 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1133 { 1134 /* Only queue ACL packet if intr_interval is set as it means 1135 * force_poll_sync has been enabled. 1136 */ 1137 if (!data->intr_interval) 1138 return data->recv_acl(data->hdev, skb); 1139 1140 skb_queue_tail(&data->acl_q, skb); 1141 schedule_delayed_work(&data->rx_work, data->intr_interval); 1142 1143 return 0; 1144 } 1145 1146 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1147 { 1148 struct sk_buff *skb; 1149 unsigned long flags; 1150 int err = 0; 1151 1152 spin_lock_irqsave(&data->rxlock, flags); 1153 skb = data->acl_skb; 1154 1155 while (count) { 1156 int len; 1157 1158 if (!skb) { 1159 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1160 if (!skb) { 1161 err = -ENOMEM; 1162 break; 1163 } 1164 1165 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1166 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1167 } 1168 1169 len = min_t(uint, hci_skb_expect(skb), count); 1170 skb_put_data(skb, buffer, len); 1171 1172 count -= len; 1173 buffer += len; 1174 hci_skb_expect(skb) -= len; 1175 1176 if (skb->len == HCI_ACL_HDR_SIZE) { 1177 __le16 dlen = hci_acl_hdr(skb)->dlen; 1178 1179 /* Complete ACL header */ 1180 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1181 1182 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1183 kfree_skb(skb); 1184 skb = NULL; 1185 1186 err = -EILSEQ; 1187 break; 1188 } 1189 } 1190 1191 if (!hci_skb_expect(skb)) { 1192 /* Complete frame */ 1193 btusb_recv_acl(data, skb); 1194 skb = NULL; 1195 } 1196 } 1197 1198 data->acl_skb = skb; 1199 spin_unlock_irqrestore(&data->rxlock, flags); 1200 1201 return err; 1202 } 1203 1204 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1205 struct hci_sco_hdr *hdr) 1206 { 1207 __u16 handle; 1208 1209 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1210 // Can't validate, userspace controls everything. 1211 return true; 1212 1213 /* 1214 * USB isochronous transfers are not designed to be reliable and may 1215 * lose fragments. When this happens, the next first fragment 1216 * encountered might actually be a continuation fragment. 1217 * Validate the handle to detect it and drop it, or else the upper 1218 * layer will get garbage for a while. 1219 */ 1220 1221 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1222 1223 switch (hci_conn_lookup_type(hdev, handle)) { 1224 case SCO_LINK: 1225 case ESCO_LINK: 1226 return true; 1227 default: 1228 return false; 1229 } 1230 } 1231 1232 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1233 { 1234 struct sk_buff *skb; 1235 unsigned long flags; 1236 int err = 0; 1237 1238 spin_lock_irqsave(&data->rxlock, flags); 1239 skb = data->sco_skb; 1240 1241 while (count) { 1242 int len; 1243 1244 if (!skb) { 1245 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1246 if (!skb) { 1247 err = -ENOMEM; 1248 break; 1249 } 1250 1251 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1252 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1253 } 1254 1255 len = min_t(uint, hci_skb_expect(skb), count); 1256 skb_put_data(skb, buffer, len); 1257 1258 count -= len; 1259 buffer += len; 1260 hci_skb_expect(skb) -= len; 1261 1262 if (skb->len == HCI_SCO_HDR_SIZE) { 1263 /* Complete SCO header */ 1264 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1265 1266 hci_skb_expect(skb) = hdr->dlen; 1267 1268 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1269 !btusb_validate_sco_handle(data->hdev, hdr)) { 1270 kfree_skb(skb); 1271 skb = NULL; 1272 1273 err = -EILSEQ; 1274 break; 1275 } 1276 } 1277 1278 if (!hci_skb_expect(skb)) { 1279 /* Complete frame */ 1280 hci_recv_frame(data->hdev, skb); 1281 skb = NULL; 1282 } 1283 } 1284 1285 data->sco_skb = skb; 1286 spin_unlock_irqrestore(&data->rxlock, flags); 1287 1288 return err; 1289 } 1290 1291 static void btusb_intr_complete(struct urb *urb) 1292 { 1293 struct hci_dev *hdev = urb->context; 1294 struct btusb_data *data = hci_get_drvdata(hdev); 1295 int err; 1296 1297 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1298 urb->actual_length); 1299 1300 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1301 return; 1302 1303 if (urb->status == 0) { 1304 hdev->stat.byte_rx += urb->actual_length; 1305 1306 if (btusb_recv_intr(data, urb->transfer_buffer, 1307 urb->actual_length) < 0) { 1308 bt_dev_err(hdev, "corrupted event packet"); 1309 hdev->stat.err_rx++; 1310 } 1311 } else if (urb->status == -ENOENT) { 1312 /* Avoid suspend failed when usb_kill_urb */ 1313 return; 1314 } 1315 1316 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1317 return; 1318 1319 usb_mark_last_busy(data->udev); 1320 usb_anchor_urb(urb, &data->intr_anchor); 1321 1322 err = usb_submit_urb(urb, GFP_ATOMIC); 1323 if (err < 0) { 1324 /* -EPERM: urb is being killed; 1325 * -ENODEV: device got disconnected 1326 */ 1327 if (err != -EPERM && err != -ENODEV) 1328 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1329 urb, -err); 1330 if (err != -EPERM) 1331 hci_cmd_sync_cancel(hdev, -err); 1332 usb_unanchor_urb(urb); 1333 } 1334 } 1335 1336 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1337 { 1338 struct btusb_data *data = hci_get_drvdata(hdev); 1339 struct urb *urb; 1340 unsigned char *buf; 1341 unsigned int pipe; 1342 int err, size; 1343 1344 BT_DBG("%s", hdev->name); 1345 1346 if (!data->intr_ep) 1347 return -ENODEV; 1348 1349 urb = usb_alloc_urb(0, mem_flags); 1350 if (!urb) 1351 return -ENOMEM; 1352 1353 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1354 1355 buf = kmalloc(size, mem_flags); 1356 if (!buf) { 1357 usb_free_urb(urb); 1358 return -ENOMEM; 1359 } 1360 1361 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1362 1363 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1364 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1365 1366 urb->transfer_flags |= URB_FREE_BUFFER; 1367 1368 usb_anchor_urb(urb, &data->intr_anchor); 1369 1370 err = usb_submit_urb(urb, mem_flags); 1371 if (err < 0) { 1372 if (err != -EPERM && err != -ENODEV) 1373 bt_dev_err(hdev, "urb %p submission failed (%d)", 1374 urb, -err); 1375 if (err != -EPERM) 1376 hci_cmd_sync_cancel(hdev, -err); 1377 usb_unanchor_urb(urb); 1378 } 1379 1380 /* Only initialize intr_interval if URB poll sync is enabled */ 1381 if (!data->poll_sync) 1382 goto done; 1383 1384 /* The units are frames (milliseconds) for full and low speed devices, 1385 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1386 * devices. 1387 * 1388 * This is done once on open/resume so it shouldn't change even if 1389 * force_poll_sync changes. 1390 */ 1391 switch (urb->dev->speed) { 1392 case USB_SPEED_SUPER_PLUS: 1393 case USB_SPEED_SUPER: /* units are 125us */ 1394 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1395 break; 1396 default: 1397 data->intr_interval = msecs_to_jiffies(urb->interval); 1398 break; 1399 } 1400 1401 done: 1402 usb_free_urb(urb); 1403 1404 return err; 1405 } 1406 1407 static void btusb_bulk_complete(struct urb *urb) 1408 { 1409 struct hci_dev *hdev = urb->context; 1410 struct btusb_data *data = hci_get_drvdata(hdev); 1411 int err; 1412 1413 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1414 urb->actual_length); 1415 1416 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1417 return; 1418 1419 if (urb->status == 0) { 1420 hdev->stat.byte_rx += urb->actual_length; 1421 1422 if (data->recv_bulk(data, urb->transfer_buffer, 1423 urb->actual_length) < 0) { 1424 bt_dev_err(hdev, "corrupted ACL packet"); 1425 hdev->stat.err_rx++; 1426 } 1427 } else if (urb->status == -ENOENT) { 1428 /* Avoid suspend failed when usb_kill_urb */ 1429 return; 1430 } 1431 1432 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1433 return; 1434 1435 usb_anchor_urb(urb, &data->bulk_anchor); 1436 usb_mark_last_busy(data->udev); 1437 1438 err = usb_submit_urb(urb, GFP_ATOMIC); 1439 if (err < 0) { 1440 /* -EPERM: urb is being killed; 1441 * -ENODEV: device got disconnected 1442 */ 1443 if (err != -EPERM && err != -ENODEV) 1444 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1445 urb, -err); 1446 usb_unanchor_urb(urb); 1447 } 1448 } 1449 1450 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1451 { 1452 struct btusb_data *data = hci_get_drvdata(hdev); 1453 struct urb *urb; 1454 unsigned char *buf; 1455 unsigned int pipe; 1456 int err, size = HCI_MAX_FRAME_SIZE; 1457 1458 BT_DBG("%s", hdev->name); 1459 1460 if (!data->bulk_rx_ep) 1461 return -ENODEV; 1462 1463 urb = usb_alloc_urb(0, mem_flags); 1464 if (!urb) 1465 return -ENOMEM; 1466 1467 buf = kmalloc(size, mem_flags); 1468 if (!buf) { 1469 usb_free_urb(urb); 1470 return -ENOMEM; 1471 } 1472 1473 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1474 1475 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1476 btusb_bulk_complete, hdev); 1477 1478 urb->transfer_flags |= URB_FREE_BUFFER; 1479 1480 usb_mark_last_busy(data->udev); 1481 usb_anchor_urb(urb, &data->bulk_anchor); 1482 1483 err = usb_submit_urb(urb, mem_flags); 1484 if (err < 0) { 1485 if (err != -EPERM && err != -ENODEV) 1486 bt_dev_err(hdev, "urb %p submission failed (%d)", 1487 urb, -err); 1488 usb_unanchor_urb(urb); 1489 } 1490 1491 usb_free_urb(urb); 1492 1493 return err; 1494 } 1495 1496 static void btusb_isoc_complete(struct urb *urb) 1497 { 1498 struct hci_dev *hdev = urb->context; 1499 struct btusb_data *data = hci_get_drvdata(hdev); 1500 int i, err; 1501 1502 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1503 urb->actual_length); 1504 1505 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1506 return; 1507 1508 if (urb->status == 0) { 1509 for (i = 0; i < urb->number_of_packets; i++) { 1510 unsigned int offset = urb->iso_frame_desc[i].offset; 1511 unsigned int length = urb->iso_frame_desc[i].actual_length; 1512 1513 if (urb->iso_frame_desc[i].status) 1514 continue; 1515 1516 hdev->stat.byte_rx += length; 1517 1518 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1519 length) < 0) { 1520 bt_dev_err(hdev, "corrupted SCO packet"); 1521 hdev->stat.err_rx++; 1522 } 1523 } 1524 } else if (urb->status == -ENOENT) { 1525 /* Avoid suspend failed when usb_kill_urb */ 1526 return; 1527 } 1528 1529 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1530 return; 1531 1532 usb_anchor_urb(urb, &data->isoc_anchor); 1533 1534 err = usb_submit_urb(urb, GFP_ATOMIC); 1535 if (err < 0) { 1536 /* -EPERM: urb is being killed; 1537 * -ENODEV: device got disconnected 1538 */ 1539 if (err != -EPERM && err != -ENODEV) 1540 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1541 urb, -err); 1542 usb_unanchor_urb(urb); 1543 } 1544 } 1545 1546 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1547 int mtu, struct btusb_data *data) 1548 { 1549 int i = 0, offset = 0; 1550 unsigned int interval; 1551 1552 BT_DBG("len %d mtu %d", len, mtu); 1553 1554 /* For mSBC ALT 6 settings some chips need to transmit the data 1555 * continuously without the zero length of USB packets. 1556 */ 1557 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1558 goto ignore_usb_alt6_packet_flow; 1559 1560 /* For mSBC ALT 6 setting the host will send the packet at continuous 1561 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1562 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1563 * To maintain the rate we send 63bytes of usb packets alternatively for 1564 * 7ms and 8ms to maintain the rate as 7.5ms. 1565 */ 1566 if (data->usb_alt6_packet_flow) { 1567 interval = 7; 1568 data->usb_alt6_packet_flow = false; 1569 } else { 1570 interval = 6; 1571 data->usb_alt6_packet_flow = true; 1572 } 1573 1574 for (i = 0; i < interval; i++) { 1575 urb->iso_frame_desc[i].offset = offset; 1576 urb->iso_frame_desc[i].length = offset; 1577 } 1578 1579 ignore_usb_alt6_packet_flow: 1580 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1581 urb->iso_frame_desc[i].offset = offset; 1582 urb->iso_frame_desc[i].length = len; 1583 i++; 1584 } 1585 1586 urb->number_of_packets = i; 1587 } 1588 1589 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1590 { 1591 int i, offset = 0; 1592 1593 BT_DBG("len %d mtu %d", len, mtu); 1594 1595 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1596 i++, offset += mtu, len -= mtu) { 1597 urb->iso_frame_desc[i].offset = offset; 1598 urb->iso_frame_desc[i].length = mtu; 1599 } 1600 1601 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1602 urb->iso_frame_desc[i].offset = offset; 1603 urb->iso_frame_desc[i].length = len; 1604 i++; 1605 } 1606 1607 urb->number_of_packets = i; 1608 } 1609 1610 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1611 { 1612 struct btusb_data *data = hci_get_drvdata(hdev); 1613 struct urb *urb; 1614 unsigned char *buf; 1615 unsigned int pipe; 1616 int err, size; 1617 1618 BT_DBG("%s", hdev->name); 1619 1620 if (!data->isoc_rx_ep) 1621 return -ENODEV; 1622 1623 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1624 if (!urb) 1625 return -ENOMEM; 1626 1627 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1628 BTUSB_MAX_ISOC_FRAMES; 1629 1630 buf = kmalloc(size, mem_flags); 1631 if (!buf) { 1632 usb_free_urb(urb); 1633 return -ENOMEM; 1634 } 1635 1636 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1637 1638 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1639 hdev, data->isoc_rx_ep->bInterval); 1640 1641 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1642 1643 __fill_isoc_descriptor(urb, size, 1644 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1645 1646 usb_anchor_urb(urb, &data->isoc_anchor); 1647 1648 err = usb_submit_urb(urb, mem_flags); 1649 if (err < 0) { 1650 if (err != -EPERM && err != -ENODEV) 1651 bt_dev_err(hdev, "urb %p submission failed (%d)", 1652 urb, -err); 1653 usb_unanchor_urb(urb); 1654 } 1655 1656 usb_free_urb(urb); 1657 1658 return err; 1659 } 1660 1661 static void btusb_diag_complete(struct urb *urb) 1662 { 1663 struct hci_dev *hdev = urb->context; 1664 struct btusb_data *data = hci_get_drvdata(hdev); 1665 int err; 1666 1667 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1668 urb->actual_length); 1669 1670 if (urb->status == 0) { 1671 struct sk_buff *skb; 1672 1673 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1674 if (skb) { 1675 skb_put_data(skb, urb->transfer_buffer, 1676 urb->actual_length); 1677 hci_recv_diag(hdev, skb); 1678 } 1679 } else if (urb->status == -ENOENT) { 1680 /* Avoid suspend failed when usb_kill_urb */ 1681 return; 1682 } 1683 1684 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1685 return; 1686 1687 usb_anchor_urb(urb, &data->diag_anchor); 1688 usb_mark_last_busy(data->udev); 1689 1690 err = usb_submit_urb(urb, GFP_ATOMIC); 1691 if (err < 0) { 1692 /* -EPERM: urb is being killed; 1693 * -ENODEV: device got disconnected 1694 */ 1695 if (err != -EPERM && err != -ENODEV) 1696 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1697 urb, -err); 1698 usb_unanchor_urb(urb); 1699 } 1700 } 1701 1702 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1703 { 1704 struct btusb_data *data = hci_get_drvdata(hdev); 1705 struct urb *urb; 1706 unsigned char *buf; 1707 unsigned int pipe; 1708 int err, size = HCI_MAX_FRAME_SIZE; 1709 1710 BT_DBG("%s", hdev->name); 1711 1712 if (!data->diag_rx_ep) 1713 return -ENODEV; 1714 1715 urb = usb_alloc_urb(0, mem_flags); 1716 if (!urb) 1717 return -ENOMEM; 1718 1719 buf = kmalloc(size, mem_flags); 1720 if (!buf) { 1721 usb_free_urb(urb); 1722 return -ENOMEM; 1723 } 1724 1725 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1726 1727 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1728 btusb_diag_complete, hdev); 1729 1730 urb->transfer_flags |= URB_FREE_BUFFER; 1731 1732 usb_mark_last_busy(data->udev); 1733 usb_anchor_urb(urb, &data->diag_anchor); 1734 1735 err = usb_submit_urb(urb, mem_flags); 1736 if (err < 0) { 1737 if (err != -EPERM && err != -ENODEV) 1738 bt_dev_err(hdev, "urb %p submission failed (%d)", 1739 urb, -err); 1740 usb_unanchor_urb(urb); 1741 } 1742 1743 usb_free_urb(urb); 1744 1745 return err; 1746 } 1747 1748 static void btusb_tx_complete(struct urb *urb) 1749 { 1750 struct sk_buff *skb = urb->context; 1751 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1752 struct btusb_data *data = hci_get_drvdata(hdev); 1753 unsigned long flags; 1754 1755 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1756 urb->actual_length); 1757 1758 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1759 goto done; 1760 1761 if (!urb->status) { 1762 hdev->stat.byte_tx += urb->transfer_buffer_length; 1763 } else { 1764 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1765 hci_cmd_sync_cancel(hdev, -urb->status); 1766 hdev->stat.err_tx++; 1767 } 1768 1769 done: 1770 spin_lock_irqsave(&data->txlock, flags); 1771 data->tx_in_flight--; 1772 spin_unlock_irqrestore(&data->txlock, flags); 1773 1774 kfree(urb->setup_packet); 1775 1776 kfree_skb(skb); 1777 } 1778 1779 static void btusb_isoc_tx_complete(struct urb *urb) 1780 { 1781 struct sk_buff *skb = urb->context; 1782 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1783 1784 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1785 urb->actual_length); 1786 1787 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1788 goto done; 1789 1790 if (!urb->status) 1791 hdev->stat.byte_tx += urb->transfer_buffer_length; 1792 else 1793 hdev->stat.err_tx++; 1794 1795 done: 1796 kfree(urb->setup_packet); 1797 1798 kfree_skb(skb); 1799 } 1800 1801 static int btusb_open(struct hci_dev *hdev) 1802 { 1803 struct btusb_data *data = hci_get_drvdata(hdev); 1804 int err; 1805 1806 BT_DBG("%s", hdev->name); 1807 1808 err = usb_autopm_get_interface(data->intf); 1809 if (err < 0) 1810 return err; 1811 1812 /* Patching USB firmware files prior to starting any URBs of HCI path 1813 * It is more safe to use USB bulk channel for downloading USB patch 1814 */ 1815 if (data->setup_on_usb) { 1816 err = data->setup_on_usb(hdev); 1817 if (err < 0) 1818 goto setup_fail; 1819 } 1820 1821 data->intf->needs_remote_wakeup = 1; 1822 1823 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1824 goto done; 1825 1826 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1827 if (err < 0) 1828 goto failed; 1829 1830 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1831 if (err < 0) { 1832 usb_kill_anchored_urbs(&data->intr_anchor); 1833 goto failed; 1834 } 1835 1836 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1837 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1838 1839 if (data->diag) { 1840 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1841 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1842 } 1843 1844 done: 1845 usb_autopm_put_interface(data->intf); 1846 return 0; 1847 1848 failed: 1849 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1850 setup_fail: 1851 usb_autopm_put_interface(data->intf); 1852 return err; 1853 } 1854 1855 static void btusb_stop_traffic(struct btusb_data *data) 1856 { 1857 usb_kill_anchored_urbs(&data->intr_anchor); 1858 usb_kill_anchored_urbs(&data->bulk_anchor); 1859 usb_kill_anchored_urbs(&data->isoc_anchor); 1860 usb_kill_anchored_urbs(&data->diag_anchor); 1861 usb_kill_anchored_urbs(&data->ctrl_anchor); 1862 } 1863 1864 static int btusb_close(struct hci_dev *hdev) 1865 { 1866 struct btusb_data *data = hci_get_drvdata(hdev); 1867 int err; 1868 1869 BT_DBG("%s", hdev->name); 1870 1871 cancel_delayed_work(&data->rx_work); 1872 cancel_work_sync(&data->work); 1873 cancel_work_sync(&data->waker); 1874 1875 skb_queue_purge(&data->acl_q); 1876 1877 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1878 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1879 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1880 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1881 1882 btusb_stop_traffic(data); 1883 btusb_free_frags(data); 1884 1885 err = usb_autopm_get_interface(data->intf); 1886 if (err < 0) 1887 goto failed; 1888 1889 data->intf->needs_remote_wakeup = 0; 1890 1891 /* Enable remote wake up for auto-suspend */ 1892 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1893 data->intf->needs_remote_wakeup = 1; 1894 1895 usb_autopm_put_interface(data->intf); 1896 1897 failed: 1898 usb_scuttle_anchored_urbs(&data->deferred); 1899 return 0; 1900 } 1901 1902 static int btusb_flush(struct hci_dev *hdev) 1903 { 1904 struct btusb_data *data = hci_get_drvdata(hdev); 1905 1906 BT_DBG("%s", hdev->name); 1907 1908 cancel_delayed_work(&data->rx_work); 1909 1910 skb_queue_purge(&data->acl_q); 1911 1912 usb_kill_anchored_urbs(&data->tx_anchor); 1913 btusb_free_frags(data); 1914 1915 return 0; 1916 } 1917 1918 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1919 { 1920 struct btusb_data *data = hci_get_drvdata(hdev); 1921 struct usb_ctrlrequest *dr; 1922 struct urb *urb; 1923 unsigned int pipe; 1924 1925 urb = usb_alloc_urb(0, GFP_KERNEL); 1926 if (!urb) 1927 return ERR_PTR(-ENOMEM); 1928 1929 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1930 if (!dr) { 1931 usb_free_urb(urb); 1932 return ERR_PTR(-ENOMEM); 1933 } 1934 1935 dr->bRequestType = data->cmdreq_type; 1936 dr->bRequest = data->cmdreq; 1937 dr->wIndex = 0; 1938 dr->wValue = 0; 1939 dr->wLength = __cpu_to_le16(skb->len); 1940 1941 pipe = usb_sndctrlpipe(data->udev, 0x00); 1942 1943 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1944 skb->data, skb->len, btusb_tx_complete, skb); 1945 1946 skb->dev = (void *)hdev; 1947 1948 return urb; 1949 } 1950 1951 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1952 { 1953 struct btusb_data *data = hci_get_drvdata(hdev); 1954 struct urb *urb; 1955 unsigned int pipe; 1956 1957 if (!data->bulk_tx_ep) 1958 return ERR_PTR(-ENODEV); 1959 1960 urb = usb_alloc_urb(0, GFP_KERNEL); 1961 if (!urb) 1962 return ERR_PTR(-ENOMEM); 1963 1964 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1965 1966 usb_fill_bulk_urb(urb, data->udev, pipe, 1967 skb->data, skb->len, btusb_tx_complete, skb); 1968 1969 skb->dev = (void *)hdev; 1970 1971 return urb; 1972 } 1973 1974 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1975 { 1976 struct btusb_data *data = hci_get_drvdata(hdev); 1977 struct urb *urb; 1978 unsigned int pipe; 1979 1980 if (!data->isoc_tx_ep) 1981 return ERR_PTR(-ENODEV); 1982 1983 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1984 if (!urb) 1985 return ERR_PTR(-ENOMEM); 1986 1987 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1988 1989 usb_fill_int_urb(urb, data->udev, pipe, 1990 skb->data, skb->len, btusb_isoc_tx_complete, 1991 skb, data->isoc_tx_ep->bInterval); 1992 1993 urb->transfer_flags = URB_ISO_ASAP; 1994 1995 if (data->isoc_altsetting == 6) 1996 __fill_isoc_descriptor_msbc(urb, skb->len, 1997 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 1998 data); 1999 else 2000 __fill_isoc_descriptor(urb, skb->len, 2001 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2002 skb->dev = (void *)hdev; 2003 2004 return urb; 2005 } 2006 2007 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2008 { 2009 struct btusb_data *data = hci_get_drvdata(hdev); 2010 int err; 2011 2012 usb_anchor_urb(urb, &data->tx_anchor); 2013 2014 err = usb_submit_urb(urb, GFP_KERNEL); 2015 if (err < 0) { 2016 if (err != -EPERM && err != -ENODEV) 2017 bt_dev_err(hdev, "urb %p submission failed (%d)", 2018 urb, -err); 2019 kfree(urb->setup_packet); 2020 usb_unanchor_urb(urb); 2021 } else { 2022 usb_mark_last_busy(data->udev); 2023 } 2024 2025 usb_free_urb(urb); 2026 return err; 2027 } 2028 2029 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2030 { 2031 struct btusb_data *data = hci_get_drvdata(hdev); 2032 unsigned long flags; 2033 bool suspending; 2034 2035 spin_lock_irqsave(&data->txlock, flags); 2036 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2037 if (!suspending) 2038 data->tx_in_flight++; 2039 spin_unlock_irqrestore(&data->txlock, flags); 2040 2041 if (!suspending) 2042 return submit_tx_urb(hdev, urb); 2043 2044 usb_anchor_urb(urb, &data->deferred); 2045 schedule_work(&data->waker); 2046 2047 usb_free_urb(urb); 2048 return 0; 2049 } 2050 2051 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2052 { 2053 struct urb *urb; 2054 2055 BT_DBG("%s", hdev->name); 2056 2057 switch (hci_skb_pkt_type(skb)) { 2058 case HCI_COMMAND_PKT: 2059 urb = alloc_ctrl_urb(hdev, skb); 2060 if (IS_ERR(urb)) 2061 return PTR_ERR(urb); 2062 2063 hdev->stat.cmd_tx++; 2064 return submit_or_queue_tx_urb(hdev, urb); 2065 2066 case HCI_ACLDATA_PKT: 2067 urb = alloc_bulk_urb(hdev, skb); 2068 if (IS_ERR(urb)) 2069 return PTR_ERR(urb); 2070 2071 hdev->stat.acl_tx++; 2072 return submit_or_queue_tx_urb(hdev, urb); 2073 2074 case HCI_SCODATA_PKT: 2075 if (hci_conn_num(hdev, SCO_LINK) < 1) 2076 return -ENODEV; 2077 2078 urb = alloc_isoc_urb(hdev, skb); 2079 if (IS_ERR(urb)) 2080 return PTR_ERR(urb); 2081 2082 hdev->stat.sco_tx++; 2083 return submit_tx_urb(hdev, urb); 2084 2085 case HCI_ISODATA_PKT: 2086 urb = alloc_bulk_urb(hdev, skb); 2087 if (IS_ERR(urb)) 2088 return PTR_ERR(urb); 2089 2090 return submit_or_queue_tx_urb(hdev, urb); 2091 } 2092 2093 return -EILSEQ; 2094 } 2095 2096 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2097 { 2098 struct btusb_data *data = hci_get_drvdata(hdev); 2099 2100 BT_DBG("%s evt %d", hdev->name, evt); 2101 2102 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2103 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2104 data->air_mode = evt; 2105 schedule_work(&data->work); 2106 } 2107 } 2108 2109 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2110 { 2111 struct btusb_data *data = hci_get_drvdata(hdev); 2112 struct usb_interface *intf = data->isoc; 2113 struct usb_endpoint_descriptor *ep_desc; 2114 int i, err; 2115 2116 if (!data->isoc) 2117 return -ENODEV; 2118 2119 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2120 if (err < 0) { 2121 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2122 return err; 2123 } 2124 2125 data->isoc_altsetting = altsetting; 2126 2127 data->isoc_tx_ep = NULL; 2128 data->isoc_rx_ep = NULL; 2129 2130 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2131 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2132 2133 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2134 data->isoc_tx_ep = ep_desc; 2135 continue; 2136 } 2137 2138 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2139 data->isoc_rx_ep = ep_desc; 2140 continue; 2141 } 2142 } 2143 2144 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2145 bt_dev_err(hdev, "invalid SCO descriptors"); 2146 return -ENODEV; 2147 } 2148 2149 return 0; 2150 } 2151 2152 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2153 { 2154 struct btusb_data *data = hci_get_drvdata(hdev); 2155 int err; 2156 2157 if (data->isoc_altsetting != new_alts) { 2158 unsigned long flags; 2159 2160 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2161 usb_kill_anchored_urbs(&data->isoc_anchor); 2162 2163 /* When isochronous alternate setting needs to be 2164 * changed, because SCO connection has been added 2165 * or removed, a packet fragment may be left in the 2166 * reassembling state. This could lead to wrongly 2167 * assembled fragments. 2168 * 2169 * Clear outstanding fragment when selecting a new 2170 * alternate setting. 2171 */ 2172 spin_lock_irqsave(&data->rxlock, flags); 2173 dev_kfree_skb_irq(data->sco_skb); 2174 data->sco_skb = NULL; 2175 spin_unlock_irqrestore(&data->rxlock, flags); 2176 2177 err = __set_isoc_interface(hdev, new_alts); 2178 if (err < 0) 2179 return err; 2180 } 2181 2182 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2183 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2184 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2185 else 2186 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2187 } 2188 2189 return 0; 2190 } 2191 2192 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2193 int alt) 2194 { 2195 struct usb_interface *intf = data->isoc; 2196 int i; 2197 2198 BT_DBG("Looking for Alt no :%d", alt); 2199 2200 if (!intf) 2201 return NULL; 2202 2203 for (i = 0; i < intf->num_altsetting; i++) { 2204 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2205 return &intf->altsetting[i]; 2206 } 2207 2208 return NULL; 2209 } 2210 2211 static void btusb_work(struct work_struct *work) 2212 { 2213 struct btusb_data *data = container_of(work, struct btusb_data, work); 2214 struct hci_dev *hdev = data->hdev; 2215 int new_alts = 0; 2216 int err; 2217 2218 if (data->sco_num > 0) { 2219 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2220 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2221 if (err < 0) { 2222 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2223 usb_kill_anchored_urbs(&data->isoc_anchor); 2224 return; 2225 } 2226 2227 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2228 } 2229 2230 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2231 if (hdev->voice_setting & 0x0020) { 2232 static const int alts[3] = { 2, 4, 5 }; 2233 2234 new_alts = alts[data->sco_num - 1]; 2235 } else { 2236 new_alts = data->sco_num; 2237 } 2238 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2239 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2240 * many adapters do not support it. Alt 1 appears to 2241 * work for all adapters that do not have alt 6, and 2242 * which work with WBS at all. Some devices prefer 2243 * alt 3 (HCI payload >= 60 Bytes let air packet 2244 * data satisfy 60 bytes), requiring 2245 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2246 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2247 */ 2248 if (btusb_find_altsetting(data, 6)) 2249 new_alts = 6; 2250 else if (btusb_find_altsetting(data, 3) && 2251 hdev->sco_mtu >= 72 && 2252 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2253 new_alts = 3; 2254 else 2255 new_alts = 1; 2256 } 2257 2258 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2259 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2260 } else { 2261 usb_kill_anchored_urbs(&data->isoc_anchor); 2262 2263 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2264 __set_isoc_interface(hdev, 0); 2265 2266 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2267 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2268 } 2269 } 2270 2271 static void btusb_waker(struct work_struct *work) 2272 { 2273 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2274 int err; 2275 2276 err = usb_autopm_get_interface(data->intf); 2277 if (err < 0) 2278 return; 2279 2280 usb_autopm_put_interface(data->intf); 2281 } 2282 2283 static void btusb_rx_work(struct work_struct *work) 2284 { 2285 struct btusb_data *data = container_of(work, struct btusb_data, 2286 rx_work.work); 2287 struct sk_buff *skb; 2288 2289 /* Dequeue ACL data received during the interval */ 2290 while ((skb = skb_dequeue(&data->acl_q))) 2291 data->recv_acl(data->hdev, skb); 2292 } 2293 2294 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2295 { 2296 struct sk_buff *skb; 2297 u8 val = 0x00; 2298 2299 BT_DBG("%s", hdev->name); 2300 2301 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2302 if (IS_ERR(skb)) 2303 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2304 else 2305 kfree_skb(skb); 2306 2307 return 0; 2308 } 2309 2310 static int btusb_setup_csr(struct hci_dev *hdev) 2311 { 2312 struct btusb_data *data = hci_get_drvdata(hdev); 2313 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2314 struct hci_rp_read_local_version *rp; 2315 struct sk_buff *skb; 2316 bool is_fake = false; 2317 int ret; 2318 2319 BT_DBG("%s", hdev->name); 2320 2321 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2322 HCI_INIT_TIMEOUT); 2323 if (IS_ERR(skb)) { 2324 int err = PTR_ERR(skb); 2325 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2326 return err; 2327 } 2328 2329 rp = skb_pull_data(skb, sizeof(*rp)); 2330 if (!rp) { 2331 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2332 kfree_skb(skb); 2333 return -EIO; 2334 } 2335 2336 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2337 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2338 2339 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2340 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2341 le16_to_cpu(rp->manufacturer)); 2342 2343 /* Detect a wide host of Chinese controllers that aren't CSR. 2344 * 2345 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2346 * 2347 * The main thing they have in common is that these are really popular low-cost 2348 * options that support newer Bluetooth versions but rely on heavy VID/PID 2349 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2350 * 2351 * We detect actual CSR devices by checking that the HCI manufacturer code 2352 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2353 * HCI rev values always match. As they both store the firmware number. 2354 */ 2355 if (le16_to_cpu(rp->manufacturer) != 10 || 2356 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2357 is_fake = true; 2358 2359 /* Known legit CSR firmware build numbers and their supported BT versions: 2360 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2361 * - 1.2 (0x2) -> 0x04d9, 0x0529 2362 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2363 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2364 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2365 * 2366 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2367 * support BT 1.1 only; so it's a dead giveaway when some 2368 * third-party BT 4.0 dongle reuses it. 2369 */ 2370 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2371 rp->hci_ver > BLUETOOTH_VER_1_1) 2372 is_fake = true; 2373 2374 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2375 rp->hci_ver > BLUETOOTH_VER_1_2) 2376 is_fake = true; 2377 2378 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2379 rp->hci_ver > BLUETOOTH_VER_2_0) 2380 is_fake = true; 2381 2382 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2383 rp->hci_ver > BLUETOOTH_VER_2_1) 2384 is_fake = true; 2385 2386 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2387 rp->hci_ver > BLUETOOTH_VER_4_0) 2388 is_fake = true; 2389 2390 /* Other clones which beat all the above checks */ 2391 else if (bcdDevice == 0x0134 && 2392 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2393 rp->hci_ver == BLUETOOTH_VER_2_0) 2394 is_fake = true; 2395 2396 if (is_fake) { 2397 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2398 2399 /* Generally these clones have big discrepancies between 2400 * advertised features and what's actually supported. 2401 * Probably will need to be expanded in the future; 2402 * without these the controller will lock up. 2403 */ 2404 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2405 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2406 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2407 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2408 2409 /* Clear the reset quirk since this is not an actual 2410 * early Bluetooth 1.1 device from CSR. 2411 */ 2412 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2413 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2414 2415 /* 2416 * Special workaround for these BT 4.0 chip clones, and potentially more: 2417 * 2418 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2419 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2420 * 2421 * These controllers are really messed-up. 2422 * 2423 * 1. Their bulk RX endpoint will never report any data unless 2424 * the device was suspended at least once (yes, really). 2425 * 2. They will not wakeup when autosuspended and receiving data 2426 * on their bulk RX endpoint from e.g. a keyboard or mouse 2427 * (IOW remote-wakeup support is broken for the bulk endpoint). 2428 * 2429 * To fix 1. enable runtime-suspend, force-suspend the 2430 * HCI and then wake-it up by disabling runtime-suspend. 2431 * 2432 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2433 * will still be autosuspended when it is not open. 2434 * 2435 * -- 2436 * 2437 * Because these are widespread problems we prefer generic solutions; so 2438 * apply this initialization quirk to every controller that gets here, 2439 * it should be harmless. The alternative is to not work at all. 2440 */ 2441 pm_runtime_allow(&data->udev->dev); 2442 2443 ret = pm_runtime_suspend(&data->udev->dev); 2444 if (ret >= 0) 2445 msleep(200); 2446 else 2447 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2448 2449 pm_runtime_forbid(&data->udev->dev); 2450 2451 device_set_wakeup_capable(&data->udev->dev, false); 2452 2453 /* Re-enable autosuspend if this was requested */ 2454 if (enable_autosuspend) 2455 usb_enable_autosuspend(data->udev); 2456 } 2457 2458 kfree_skb(skb); 2459 2460 return 0; 2461 } 2462 2463 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2464 { 2465 struct sk_buff *skb; 2466 struct hci_event_hdr *hdr; 2467 struct hci_ev_cmd_complete *evt; 2468 2469 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2470 if (!skb) 2471 return -ENOMEM; 2472 2473 hdr = skb_put(skb, sizeof(*hdr)); 2474 hdr->evt = HCI_EV_CMD_COMPLETE; 2475 hdr->plen = sizeof(*evt) + 1; 2476 2477 evt = skb_put(skb, sizeof(*evt)); 2478 evt->ncmd = 0x01; 2479 evt->opcode = cpu_to_le16(opcode); 2480 2481 skb_put_u8(skb, 0x00); 2482 2483 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2484 2485 return hci_recv_frame(hdev, skb); 2486 } 2487 2488 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2489 int count) 2490 { 2491 struct hci_dev *hdev = data->hdev; 2492 2493 /* When the device is in bootloader mode, then it can send 2494 * events via the bulk endpoint. These events are treated the 2495 * same way as the ones received from the interrupt endpoint. 2496 */ 2497 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2498 return btusb_recv_intr(data, buffer, count); 2499 2500 return btusb_recv_bulk(data, buffer, count); 2501 } 2502 2503 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2504 { 2505 struct urb *urb; 2506 2507 BT_DBG("%s", hdev->name); 2508 2509 switch (hci_skb_pkt_type(skb)) { 2510 case HCI_COMMAND_PKT: 2511 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2512 struct hci_command_hdr *cmd = (void *)skb->data; 2513 __u16 opcode = le16_to_cpu(cmd->opcode); 2514 2515 /* When in bootloader mode and the command 0xfc09 2516 * is received, it needs to be send down the 2517 * bulk endpoint. So allocate a bulk URB instead. 2518 */ 2519 if (opcode == 0xfc09) 2520 urb = alloc_bulk_urb(hdev, skb); 2521 else 2522 urb = alloc_ctrl_urb(hdev, skb); 2523 2524 /* When the 0xfc01 command is issued to boot into 2525 * the operational firmware, it will actually not 2526 * send a command complete event. To keep the flow 2527 * control working inject that event here. 2528 */ 2529 if (opcode == 0xfc01) 2530 inject_cmd_complete(hdev, opcode); 2531 } else { 2532 urb = alloc_ctrl_urb(hdev, skb); 2533 } 2534 if (IS_ERR(urb)) 2535 return PTR_ERR(urb); 2536 2537 hdev->stat.cmd_tx++; 2538 return submit_or_queue_tx_urb(hdev, urb); 2539 2540 case HCI_ACLDATA_PKT: 2541 urb = alloc_bulk_urb(hdev, skb); 2542 if (IS_ERR(urb)) 2543 return PTR_ERR(urb); 2544 2545 hdev->stat.acl_tx++; 2546 return submit_or_queue_tx_urb(hdev, urb); 2547 2548 case HCI_SCODATA_PKT: 2549 if (hci_conn_num(hdev, SCO_LINK) < 1) 2550 return -ENODEV; 2551 2552 urb = alloc_isoc_urb(hdev, skb); 2553 if (IS_ERR(urb)) 2554 return PTR_ERR(urb); 2555 2556 hdev->stat.sco_tx++; 2557 return submit_tx_urb(hdev, urb); 2558 2559 case HCI_ISODATA_PKT: 2560 urb = alloc_bulk_urb(hdev, skb); 2561 if (IS_ERR(urb)) 2562 return PTR_ERR(urb); 2563 2564 return submit_or_queue_tx_urb(hdev, urb); 2565 } 2566 2567 return -EILSEQ; 2568 } 2569 2570 static int btusb_setup_realtek(struct hci_dev *hdev) 2571 { 2572 struct btusb_data *data = hci_get_drvdata(hdev); 2573 int ret; 2574 2575 ret = btrtl_setup_realtek(hdev); 2576 2577 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2578 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2579 2580 return ret; 2581 } 2582 2583 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2584 { 2585 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2586 struct rtk_dev_coredump_hdr hdr = { 2587 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2588 }; 2589 2590 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2591 skb->len); 2592 2593 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2594 kfree_skb(skb); 2595 2596 return 0; 2597 } 2598 2599 return hci_recv_frame(hdev, skb); 2600 } 2601 2602 /* UHW CR mapping */ 2603 #define MTK_BT_MISC 0x70002510 2604 #define MTK_BT_SUBSYS_RST 0x70002610 2605 #define MTK_UDMA_INT_STA_BT 0x74000024 2606 #define MTK_UDMA_INT_STA_BT1 0x74000308 2607 #define MTK_BT_WDT_STATUS 0x740003A0 2608 #define MTK_EP_RST_OPT 0x74011890 2609 #define MTK_EP_RST_IN_OUT_OPT 0x00010001 2610 #define MTK_BT_RST_DONE 0x00000100 2611 #define MTK_BT_RESET_REG_CONNV3 0x70028610 2612 #define MTK_BT_READ_DEV_ID 0x70010200 2613 2614 2615 static void btusb_mtk_wmt_recv(struct urb *urb) 2616 { 2617 struct hci_dev *hdev = urb->context; 2618 struct btusb_data *data = hci_get_drvdata(hdev); 2619 struct sk_buff *skb; 2620 int err; 2621 2622 if (urb->status == 0 && urb->actual_length > 0) { 2623 hdev->stat.byte_rx += urb->actual_length; 2624 2625 /* WMT event shouldn't be fragmented and the size should be 2626 * less than HCI_WMT_MAX_EVENT_SIZE. 2627 */ 2628 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC); 2629 if (!skb) { 2630 hdev->stat.err_rx++; 2631 kfree(urb->setup_packet); 2632 return; 2633 } 2634 2635 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2636 skb_put_data(skb, urb->transfer_buffer, urb->actual_length); 2637 2638 /* When someone waits for the WMT event, the skb is being cloned 2639 * and being processed the events from there then. 2640 */ 2641 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) { 2642 data->evt_skb = skb_clone(skb, GFP_ATOMIC); 2643 if (!data->evt_skb) { 2644 kfree_skb(skb); 2645 kfree(urb->setup_packet); 2646 return; 2647 } 2648 } 2649 2650 err = hci_recv_frame(hdev, skb); 2651 if (err < 0) { 2652 kfree_skb(data->evt_skb); 2653 data->evt_skb = NULL; 2654 kfree(urb->setup_packet); 2655 return; 2656 } 2657 2658 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT, 2659 &data->flags)) { 2660 /* Barrier to sync with other CPUs */ 2661 smp_mb__after_atomic(); 2662 wake_up_bit(&data->flags, 2663 BTUSB_TX_WAIT_VND_EVT); 2664 } 2665 kfree(urb->setup_packet); 2666 return; 2667 } else if (urb->status == -ENOENT) { 2668 /* Avoid suspend failed when usb_kill_urb */ 2669 return; 2670 } 2671 2672 usb_mark_last_busy(data->udev); 2673 2674 /* The URB complete handler is still called with urb->actual_length = 0 2675 * when the event is not available, so we should keep re-submitting 2676 * URB until WMT event returns, Also, It's necessary to wait some time 2677 * between the two consecutive control URBs to relax the target device 2678 * to generate the event. Otherwise, the WMT event cannot return from 2679 * the device successfully. 2680 */ 2681 udelay(500); 2682 2683 usb_anchor_urb(urb, &data->ctrl_anchor); 2684 err = usb_submit_urb(urb, GFP_ATOMIC); 2685 if (err < 0) { 2686 kfree(urb->setup_packet); 2687 /* -EPERM: urb is being killed; 2688 * -ENODEV: device got disconnected 2689 */ 2690 if (err != -EPERM && err != -ENODEV) 2691 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2692 urb, -err); 2693 usb_unanchor_urb(urb); 2694 } 2695 } 2696 2697 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev) 2698 { 2699 struct btusb_data *data = hci_get_drvdata(hdev); 2700 struct usb_ctrlrequest *dr; 2701 unsigned char *buf; 2702 int err, size = 64; 2703 unsigned int pipe; 2704 struct urb *urb; 2705 2706 urb = usb_alloc_urb(0, GFP_KERNEL); 2707 if (!urb) 2708 return -ENOMEM; 2709 2710 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2711 if (!dr) { 2712 usb_free_urb(urb); 2713 return -ENOMEM; 2714 } 2715 2716 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN; 2717 dr->bRequest = 1; 2718 dr->wIndex = cpu_to_le16(0); 2719 dr->wValue = cpu_to_le16(48); 2720 dr->wLength = cpu_to_le16(size); 2721 2722 buf = kmalloc(size, GFP_KERNEL); 2723 if (!buf) { 2724 kfree(dr); 2725 usb_free_urb(urb); 2726 return -ENOMEM; 2727 } 2728 2729 pipe = usb_rcvctrlpipe(data->udev, 0); 2730 2731 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2732 buf, size, btusb_mtk_wmt_recv, hdev); 2733 2734 urb->transfer_flags |= URB_FREE_BUFFER; 2735 2736 usb_anchor_urb(urb, &data->ctrl_anchor); 2737 err = usb_submit_urb(urb, GFP_KERNEL); 2738 if (err < 0) { 2739 if (err != -EPERM && err != -ENODEV) 2740 bt_dev_err(hdev, "urb %p submission failed (%d)", 2741 urb, -err); 2742 usb_unanchor_urb(urb); 2743 } 2744 2745 usb_free_urb(urb); 2746 2747 return err; 2748 } 2749 2750 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev, 2751 struct btmtk_hci_wmt_params *wmt_params) 2752 { 2753 struct btusb_data *data = hci_get_drvdata(hdev); 2754 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc; 2755 u32 hlen, status = BTMTK_WMT_INVALID; 2756 struct btmtk_hci_wmt_evt *wmt_evt; 2757 struct btmtk_hci_wmt_cmd *wc; 2758 struct btmtk_wmt_hdr *hdr; 2759 int err; 2760 2761 /* Send the WMT command and wait until the WMT event returns */ 2762 hlen = sizeof(*hdr) + wmt_params->dlen; 2763 if (hlen > 255) 2764 return -EINVAL; 2765 2766 wc = kzalloc(hlen, GFP_KERNEL); 2767 if (!wc) 2768 return -ENOMEM; 2769 2770 hdr = &wc->hdr; 2771 hdr->dir = 1; 2772 hdr->op = wmt_params->op; 2773 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1); 2774 hdr->flag = wmt_params->flag; 2775 memcpy(wc->data, wmt_params->data, wmt_params->dlen); 2776 2777 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2778 2779 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling, 2780 * it needs constantly polling control pipe until the host received the 2781 * WMT event, thus, we should require to specifically acquire PM counter 2782 * on the USB to prevent the interface from entering auto suspended 2783 * while WMT cmd/event in progress. 2784 */ 2785 err = usb_autopm_get_interface(data->intf); 2786 if (err < 0) 2787 goto err_free_wc; 2788 2789 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc); 2790 2791 if (err < 0) { 2792 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2793 usb_autopm_put_interface(data->intf); 2794 goto err_free_wc; 2795 } 2796 2797 /* Submit control IN URB on demand to process the WMT event */ 2798 err = btusb_mtk_submit_wmt_recv_urb(hdev); 2799 2800 usb_autopm_put_interface(data->intf); 2801 2802 if (err < 0) 2803 goto err_free_wc; 2804 2805 /* The vendor specific WMT commands are all answered by a vendor 2806 * specific event and will have the Command Status or Command 2807 * Complete as with usual HCI command flow control. 2808 * 2809 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT 2810 * state to be cleared. The driver specific event receive routine 2811 * will clear that state and with that indicate completion of the 2812 * WMT command. 2813 */ 2814 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT, 2815 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT); 2816 if (err == -EINTR) { 2817 bt_dev_err(hdev, "Execution of wmt command interrupted"); 2818 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2819 goto err_free_wc; 2820 } 2821 2822 if (err) { 2823 bt_dev_err(hdev, "Execution of wmt command timed out"); 2824 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2825 err = -ETIMEDOUT; 2826 goto err_free_wc; 2827 } 2828 2829 if (data->evt_skb == NULL) 2830 goto err_free_wc; 2831 2832 /* Parse and handle the return WMT event */ 2833 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; 2834 if (wmt_evt->whdr.op != hdr->op) { 2835 bt_dev_err(hdev, "Wrong op received %d expected %d", 2836 wmt_evt->whdr.op, hdr->op); 2837 err = -EIO; 2838 goto err_free_skb; 2839 } 2840 2841 switch (wmt_evt->whdr.op) { 2842 case BTMTK_WMT_SEMAPHORE: 2843 if (wmt_evt->whdr.flag == 2) 2844 status = BTMTK_WMT_PATCH_UNDONE; 2845 else 2846 status = BTMTK_WMT_PATCH_DONE; 2847 break; 2848 case BTMTK_WMT_FUNC_CTRL: 2849 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; 2850 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) 2851 status = BTMTK_WMT_ON_DONE; 2852 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) 2853 status = BTMTK_WMT_ON_PROGRESS; 2854 else 2855 status = BTMTK_WMT_ON_UNDONE; 2856 break; 2857 case BTMTK_WMT_PATCH_DWNLD: 2858 if (wmt_evt->whdr.flag == 2) 2859 status = BTMTK_WMT_PATCH_DONE; 2860 else if (wmt_evt->whdr.flag == 1) 2861 status = BTMTK_WMT_PATCH_PROGRESS; 2862 else 2863 status = BTMTK_WMT_PATCH_UNDONE; 2864 break; 2865 } 2866 2867 if (wmt_params->status) 2868 *wmt_params->status = status; 2869 2870 err_free_skb: 2871 kfree_skb(data->evt_skb); 2872 data->evt_skb = NULL; 2873 err_free_wc: 2874 kfree(wc); 2875 return err; 2876 } 2877 2878 static int btusb_mtk_func_query(struct hci_dev *hdev) 2879 { 2880 struct btmtk_hci_wmt_params wmt_params; 2881 int status, err; 2882 u8 param = 0; 2883 2884 /* Query whether the function is enabled */ 2885 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2886 wmt_params.flag = 4; 2887 wmt_params.dlen = sizeof(param); 2888 wmt_params.data = ¶m; 2889 wmt_params.status = &status; 2890 2891 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2892 if (err < 0) { 2893 bt_dev_err(hdev, "Failed to query function status (%d)", err); 2894 return err; 2895 } 2896 2897 return status; 2898 } 2899 2900 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) 2901 { 2902 struct hci_dev *hdev = data->hdev; 2903 int pipe, err; 2904 void *buf; 2905 2906 buf = kzalloc(4, GFP_KERNEL); 2907 if (!buf) 2908 return -ENOMEM; 2909 2910 put_unaligned_le32(val, buf); 2911 2912 pipe = usb_sndctrlpipe(data->udev, 0); 2913 err = usb_control_msg(data->udev, pipe, 0x02, 2914 0x5E, 2915 reg >> 16, reg & 0xffff, 2916 buf, 4, USB_CTRL_SET_TIMEOUT); 2917 if (err < 0) { 2918 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); 2919 goto err_free_buf; 2920 } 2921 2922 err_free_buf: 2923 kfree(buf); 2924 2925 return err; 2926 } 2927 2928 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2929 { 2930 struct hci_dev *hdev = data->hdev; 2931 int pipe, err; 2932 void *buf; 2933 2934 buf = kzalloc(4, GFP_KERNEL); 2935 if (!buf) 2936 return -ENOMEM; 2937 2938 pipe = usb_rcvctrlpipe(data->udev, 0); 2939 err = usb_control_msg(data->udev, pipe, 0x01, 2940 0xDE, 2941 reg >> 16, reg & 0xffff, 2942 buf, 4, USB_CTRL_SET_TIMEOUT); 2943 if (err < 0) { 2944 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); 2945 goto err_free_buf; 2946 } 2947 2948 *val = get_unaligned_le32(buf); 2949 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); 2950 2951 err_free_buf: 2952 kfree(buf); 2953 2954 return err; 2955 } 2956 2957 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2958 { 2959 int pipe, err, size = sizeof(u32); 2960 void *buf; 2961 2962 buf = kzalloc(size, GFP_KERNEL); 2963 if (!buf) 2964 return -ENOMEM; 2965 2966 pipe = usb_rcvctrlpipe(data->udev, 0); 2967 err = usb_control_msg(data->udev, pipe, 0x63, 2968 USB_TYPE_VENDOR | USB_DIR_IN, 2969 reg >> 16, reg & 0xffff, 2970 buf, size, USB_CTRL_SET_TIMEOUT); 2971 if (err < 0) 2972 goto err_free_buf; 2973 2974 *val = get_unaligned_le32(buf); 2975 2976 err_free_buf: 2977 kfree(buf); 2978 2979 return err; 2980 } 2981 2982 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) 2983 { 2984 return btusb_mtk_reg_read(data, reg, id); 2985 } 2986 2987 static u32 btusb_mtk_reset_done(struct hci_dev *hdev) 2988 { 2989 struct btusb_data *data = hci_get_drvdata(hdev); 2990 u32 val = 0; 2991 2992 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); 2993 2994 return val & MTK_BT_RST_DONE; 2995 } 2996 2997 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 2998 { 2999 struct btusb_data *data = hci_get_drvdata(hdev); 3000 struct btmediatek_data *mediatek; 3001 u32 val; 3002 int err; 3003 3004 /* It's MediaTek specific bluetooth reset mechanism via USB */ 3005 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 3006 bt_dev_err(hdev, "last reset failed? Not resetting again"); 3007 return -EBUSY; 3008 } 3009 3010 err = usb_autopm_get_interface(data->intf); 3011 if (err < 0) 3012 return err; 3013 3014 btusb_stop_traffic(data); 3015 usb_kill_anchored_urbs(&data->tx_anchor); 3016 mediatek = hci_get_priv(hdev); 3017 3018 if (mediatek->dev_id == 0x7925) { 3019 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3020 val |= (1 << 5); 3021 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3022 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3023 val &= 0xFFFF00FF; 3024 val |= (1 << 13); 3025 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3026 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); 3027 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3028 val |= (1 << 0); 3029 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3030 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3031 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3032 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3033 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3034 msleep(100); 3035 } else { 3036 /* It's Device EndPoint Reset Option Register */ 3037 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); 3038 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3039 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); 3040 3041 /* Reset the bluetooth chip via USB interface. */ 3042 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); 3043 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3044 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3045 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3046 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3047 /* MT7921 need to delay 20ms between toggle reset bit */ 3048 msleep(20); 3049 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); 3050 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); 3051 } 3052 3053 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val, 3054 val & MTK_BT_RST_DONE, 20000, 1000000); 3055 if (err < 0) 3056 bt_dev_err(hdev, "Reset timeout"); 3057 3058 btusb_mtk_id_get(data, 0x70010200, &val); 3059 if (!val) 3060 bt_dev_err(hdev, "Can't get device id, subsys reset fail."); 3061 3062 usb_queue_reset_device(data->intf); 3063 3064 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); 3065 3066 return err; 3067 } 3068 3069 static int btusb_mtk_setup(struct hci_dev *hdev) 3070 { 3071 struct btusb_data *data = hci_get_drvdata(hdev); 3072 struct btmtk_hci_wmt_params wmt_params; 3073 ktime_t calltime, delta, rettime; 3074 struct btmtk_tci_sleep tci_sleep; 3075 unsigned long long duration; 3076 struct sk_buff *skb; 3077 const char *fwname; 3078 int err, status; 3079 u32 dev_id = 0; 3080 char fw_bin_name[64]; 3081 u32 fw_version = 0; 3082 u8 param; 3083 struct btmediatek_data *mediatek; 3084 3085 calltime = ktime_get(); 3086 3087 err = btusb_mtk_id_get(data, 0x80000008, &dev_id); 3088 if (err < 0) { 3089 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3090 return err; 3091 } 3092 3093 if (!dev_id || dev_id != 0x7663) { 3094 err = btusb_mtk_id_get(data, 0x70010200, &dev_id); 3095 if (err < 0) { 3096 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3097 return err; 3098 } 3099 err = btusb_mtk_id_get(data, 0x80021004, &fw_version); 3100 if (err < 0) { 3101 bt_dev_err(hdev, "Failed to get fw version (%d)", err); 3102 return err; 3103 } 3104 } 3105 3106 mediatek = hci_get_priv(hdev); 3107 mediatek->dev_id = dev_id; 3108 mediatek->reset_sync = btusb_mtk_reset; 3109 3110 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version); 3111 if (err < 0) 3112 bt_dev_err(hdev, "Failed to register coredump (%d)", err); 3113 3114 switch (dev_id) { 3115 case 0x7663: 3116 fwname = FIRMWARE_MT7663; 3117 break; 3118 case 0x7668: 3119 fwname = FIRMWARE_MT7668; 3120 break; 3121 case 0x7922: 3122 case 0x7961: 3123 case 0x7925: 3124 if (dev_id == 0x7925) 3125 snprintf(fw_bin_name, sizeof(fw_bin_name), 3126 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3127 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1); 3128 else 3129 snprintf(fw_bin_name, sizeof(fw_bin_name), 3130 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3131 dev_id & 0xffff, (fw_version & 0xff) + 1); 3132 3133 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name, 3134 btusb_mtk_hci_wmt_sync); 3135 if (err < 0) { 3136 bt_dev_err(hdev, "Failed to set up firmware (%d)", err); 3137 return err; 3138 } 3139 3140 /* It's Device EndPoint Reset Option Register */ 3141 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3142 3143 /* Enable Bluetooth protocol */ 3144 param = 1; 3145 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3146 wmt_params.flag = 0; 3147 wmt_params.dlen = sizeof(param); 3148 wmt_params.data = ¶m; 3149 wmt_params.status = NULL; 3150 3151 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3152 if (err < 0) { 3153 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3154 return err; 3155 } 3156 3157 hci_set_msft_opcode(hdev, 0xFD30); 3158 hci_set_aosp_capable(hdev); 3159 goto done; 3160 default: 3161 bt_dev_err(hdev, "Unsupported hardware variant (%08x)", 3162 dev_id); 3163 return -ENODEV; 3164 } 3165 3166 /* Query whether the firmware is already download */ 3167 wmt_params.op = BTMTK_WMT_SEMAPHORE; 3168 wmt_params.flag = 1; 3169 wmt_params.dlen = 0; 3170 wmt_params.data = NULL; 3171 wmt_params.status = &status; 3172 3173 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3174 if (err < 0) { 3175 bt_dev_err(hdev, "Failed to query firmware status (%d)", err); 3176 return err; 3177 } 3178 3179 if (status == BTMTK_WMT_PATCH_DONE) { 3180 bt_dev_info(hdev, "firmware already downloaded"); 3181 goto ignore_setup_fw; 3182 } 3183 3184 /* Setup a firmware which the device definitely requires */ 3185 err = btmtk_setup_firmware(hdev, fwname, 3186 btusb_mtk_hci_wmt_sync); 3187 if (err < 0) 3188 return err; 3189 3190 ignore_setup_fw: 3191 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, 3192 status < 0 || status != BTMTK_WMT_ON_PROGRESS, 3193 2000, 5000000); 3194 /* -ETIMEDOUT happens */ 3195 if (err < 0) 3196 return err; 3197 3198 /* The other errors happen in btusb_mtk_func_query */ 3199 if (status < 0) 3200 return status; 3201 3202 if (status == BTMTK_WMT_ON_DONE) { 3203 bt_dev_info(hdev, "function already on"); 3204 goto ignore_func_on; 3205 } 3206 3207 /* Enable Bluetooth protocol */ 3208 param = 1; 3209 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3210 wmt_params.flag = 0; 3211 wmt_params.dlen = sizeof(param); 3212 wmt_params.data = ¶m; 3213 wmt_params.status = NULL; 3214 3215 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3216 if (err < 0) { 3217 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3218 return err; 3219 } 3220 3221 ignore_func_on: 3222 /* Apply the low power environment setup */ 3223 tci_sleep.mode = 0x5; 3224 tci_sleep.duration = cpu_to_le16(0x640); 3225 tci_sleep.host_duration = cpu_to_le16(0x640); 3226 tci_sleep.host_wakeup_pin = 0; 3227 tci_sleep.time_compensation = 0; 3228 3229 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, 3230 HCI_INIT_TIMEOUT); 3231 if (IS_ERR(skb)) { 3232 err = PTR_ERR(skb); 3233 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); 3234 return err; 3235 } 3236 kfree_skb(skb); 3237 3238 done: 3239 rettime = ktime_get(); 3240 delta = ktime_sub(rettime, calltime); 3241 duration = (unsigned long long)ktime_to_ns(delta) >> 10; 3242 3243 bt_dev_info(hdev, "Device setup in %llu usecs", duration); 3244 3245 return 0; 3246 } 3247 3248 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3249 { 3250 struct btmtk_hci_wmt_params wmt_params; 3251 u8 param = 0; 3252 int err; 3253 3254 /* Disable the device */ 3255 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3256 wmt_params.flag = 0; 3257 wmt_params.dlen = sizeof(param); 3258 wmt_params.data = ¶m; 3259 wmt_params.status = NULL; 3260 3261 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3262 if (err < 0) { 3263 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3264 return err; 3265 } 3266 3267 return 0; 3268 } 3269 3270 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3271 { 3272 struct btusb_data *data = hci_get_drvdata(hdev); 3273 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); 3274 struct sk_buff *skb_cd; 3275 3276 switch (handle) { 3277 case 0xfc6f: /* Firmware dump from device */ 3278 /* When the firmware hangs, the device can no longer 3279 * suspend and thus disable auto-suspend. 3280 */ 3281 usb_disable_autosuspend(data->udev); 3282 3283 /* We need to forward the diagnostic packet to userspace daemon 3284 * for backward compatibility, so we have to clone the packet 3285 * extraly for the in-kernel coredump support. 3286 */ 3287 skb_cd = skb_clone(skb, GFP_ATOMIC); 3288 if (skb_cd) 3289 btmtk_process_coredump(hdev, skb_cd); 3290 3291 fallthrough; 3292 case 0x05ff: /* Firmware debug logging 1 */ 3293 case 0x05fe: /* Firmware debug logging 2 */ 3294 return hci_recv_diag(hdev, skb); 3295 } 3296 3297 return hci_recv_frame(hdev, skb); 3298 } 3299 3300 #ifdef CONFIG_PM 3301 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3302 static int marvell_config_oob_wake(struct hci_dev *hdev) 3303 { 3304 struct sk_buff *skb; 3305 struct btusb_data *data = hci_get_drvdata(hdev); 3306 struct device *dev = &data->udev->dev; 3307 u16 pin, gap, opcode; 3308 int ret; 3309 u8 cmd[5]; 3310 3311 /* Move on if no wakeup pin specified */ 3312 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3313 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3314 return 0; 3315 3316 /* Vendor specific command to configure a GPIO as wake-up pin */ 3317 opcode = hci_opcode_pack(0x3F, 0x59); 3318 cmd[0] = opcode & 0xFF; 3319 cmd[1] = opcode >> 8; 3320 cmd[2] = 2; /* length of parameters that follow */ 3321 cmd[3] = pin; 3322 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3323 3324 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3325 if (!skb) { 3326 bt_dev_err(hdev, "%s: No memory", __func__); 3327 return -ENOMEM; 3328 } 3329 3330 skb_put_data(skb, cmd, sizeof(cmd)); 3331 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3332 3333 ret = btusb_send_frame(hdev, skb); 3334 if (ret) { 3335 bt_dev_err(hdev, "%s: configuration failed", __func__); 3336 kfree_skb(skb); 3337 return ret; 3338 } 3339 3340 return 0; 3341 } 3342 #endif 3343 3344 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3345 const bdaddr_t *bdaddr) 3346 { 3347 struct sk_buff *skb; 3348 u8 buf[8]; 3349 long ret; 3350 3351 buf[0] = 0xfe; 3352 buf[1] = sizeof(bdaddr_t); 3353 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3354 3355 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3356 if (IS_ERR(skb)) { 3357 ret = PTR_ERR(skb); 3358 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3359 ret); 3360 return ret; 3361 } 3362 kfree_skb(skb); 3363 3364 return 0; 3365 } 3366 3367 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3368 const bdaddr_t *bdaddr) 3369 { 3370 struct sk_buff *skb; 3371 u8 buf[10]; 3372 long ret; 3373 3374 buf[0] = 0x01; 3375 buf[1] = 0x01; 3376 buf[2] = 0x00; 3377 buf[3] = sizeof(bdaddr_t); 3378 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3379 3380 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3381 if (IS_ERR(skb)) { 3382 ret = PTR_ERR(skb); 3383 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3384 return ret; 3385 } 3386 kfree_skb(skb); 3387 3388 return 0; 3389 } 3390 3391 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3392 const bdaddr_t *bdaddr) 3393 { 3394 struct sk_buff *skb; 3395 u8 buf[6]; 3396 long ret; 3397 3398 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3399 3400 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3401 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3402 if (IS_ERR(skb)) { 3403 ret = PTR_ERR(skb); 3404 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3405 return ret; 3406 } 3407 kfree_skb(skb); 3408 3409 return 0; 3410 } 3411 3412 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3413 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3414 #define QCA_MEMDUMP_VSE_CLASS 0x01 3415 #define QCA_MEMDUMP_MSG_TYPE 0x08 3416 #define QCA_MEMDUMP_PKT_SIZE 248 3417 #define QCA_LAST_SEQUENCE_NUM 0xffff 3418 3419 struct qca_dump_hdr { 3420 u8 vse_class; 3421 u8 msg_type; 3422 __le16 seqno; 3423 u8 reserved; 3424 union { 3425 u8 data[0]; 3426 struct { 3427 __le32 ram_dump_size; 3428 u8 data0[0]; 3429 } __packed; 3430 }; 3431 } __packed; 3432 3433 3434 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3435 { 3436 char buf[128]; 3437 struct btusb_data *btdata = hci_get_drvdata(hdev); 3438 3439 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3440 btdata->qca_dump.controller_id); 3441 skb_put_data(skb, buf, strlen(buf)); 3442 3443 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3444 btdata->qca_dump.fw_version); 3445 skb_put_data(skb, buf, strlen(buf)); 3446 3447 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3448 btusb_driver.name); 3449 skb_put_data(skb, buf, strlen(buf)); 3450 3451 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3452 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3453 skb_put_data(skb, buf, strlen(buf)); 3454 3455 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3456 hdev->lmp_subver); 3457 skb_put_data(skb, buf, strlen(buf)); 3458 } 3459 3460 static void btusb_coredump_qca(struct hci_dev *hdev) 3461 { 3462 static const u8 param[] = { 0x26 }; 3463 struct sk_buff *skb; 3464 3465 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT); 3466 if (IS_ERR(skb)) 3467 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb)); 3468 kfree_skb(skb); 3469 } 3470 3471 /* 3472 * ==0: not a dump pkt. 3473 * < 0: fails to handle a dump pkt 3474 * > 0: otherwise. 3475 */ 3476 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3477 { 3478 int ret = 1; 3479 u8 pkt_type; 3480 u8 *sk_ptr; 3481 unsigned int sk_len; 3482 u16 seqno; 3483 u32 dump_size; 3484 3485 struct hci_event_hdr *event_hdr; 3486 struct hci_acl_hdr *acl_hdr; 3487 struct qca_dump_hdr *dump_hdr; 3488 struct btusb_data *btdata = hci_get_drvdata(hdev); 3489 struct usb_device *udev = btdata->udev; 3490 3491 pkt_type = hci_skb_pkt_type(skb); 3492 sk_ptr = skb->data; 3493 sk_len = skb->len; 3494 3495 if (pkt_type == HCI_ACLDATA_PKT) { 3496 acl_hdr = hci_acl_hdr(skb); 3497 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3498 return 0; 3499 sk_ptr += HCI_ACL_HDR_SIZE; 3500 sk_len -= HCI_ACL_HDR_SIZE; 3501 event_hdr = (struct hci_event_hdr *)sk_ptr; 3502 } else { 3503 event_hdr = hci_event_hdr(skb); 3504 } 3505 3506 if ((event_hdr->evt != HCI_VENDOR_PKT) 3507 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3508 return 0; 3509 3510 sk_ptr += HCI_EVENT_HDR_SIZE; 3511 sk_len -= HCI_EVENT_HDR_SIZE; 3512 3513 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3514 if ((sk_len < offsetof(struct qca_dump_hdr, data)) 3515 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) 3516 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3517 return 0; 3518 3519 /*it is dump pkt now*/ 3520 seqno = le16_to_cpu(dump_hdr->seqno); 3521 if (seqno == 0) { 3522 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3523 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3524 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3525 ret = -EILSEQ; 3526 bt_dev_err(hdev, "Invalid memdump size(%u)", 3527 dump_size); 3528 goto out; 3529 } 3530 3531 ret = hci_devcd_init(hdev, dump_size); 3532 if (ret < 0) { 3533 bt_dev_err(hdev, "memdump init error(%d)", ret); 3534 goto out; 3535 } 3536 3537 btdata->qca_dump.ram_dump_size = dump_size; 3538 btdata->qca_dump.ram_dump_seqno = 0; 3539 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3540 sk_len -= offsetof(struct qca_dump_hdr, data0); 3541 3542 usb_disable_autosuspend(udev); 3543 bt_dev_info(hdev, "%s memdump size(%u)\n", 3544 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3545 dump_size); 3546 } else { 3547 sk_ptr += offsetof(struct qca_dump_hdr, data); 3548 sk_len -= offsetof(struct qca_dump_hdr, data); 3549 } 3550 3551 if (!btdata->qca_dump.ram_dump_size) { 3552 ret = -EINVAL; 3553 bt_dev_err(hdev, "memdump is not active"); 3554 goto out; 3555 } 3556 3557 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3558 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3559 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3560 bt_dev_err(hdev, 3561 "expected memdump seqno(%u) is not received(%u)\n", 3562 btdata->qca_dump.ram_dump_seqno, seqno); 3563 btdata->qca_dump.ram_dump_seqno = seqno; 3564 kfree_skb(skb); 3565 return ret; 3566 } 3567 3568 skb_pull(skb, skb->len - sk_len); 3569 hci_devcd_append(hdev, skb); 3570 btdata->qca_dump.ram_dump_seqno++; 3571 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3572 bt_dev_info(hdev, 3573 "memdump done: pkts(%u), total(%u)\n", 3574 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3575 3576 hci_devcd_complete(hdev); 3577 goto out; 3578 } 3579 return ret; 3580 3581 out: 3582 if (btdata->qca_dump.ram_dump_size) 3583 usb_enable_autosuspend(udev); 3584 btdata->qca_dump.ram_dump_size = 0; 3585 btdata->qca_dump.ram_dump_seqno = 0; 3586 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3587 3588 if (ret < 0) 3589 kfree_skb(skb); 3590 return ret; 3591 } 3592 3593 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3594 { 3595 if (handle_dump_pkt_qca(hdev, skb)) 3596 return 0; 3597 return hci_recv_frame(hdev, skb); 3598 } 3599 3600 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3601 { 3602 if (handle_dump_pkt_qca(hdev, skb)) 3603 return 0; 3604 return hci_recv_frame(hdev, skb); 3605 } 3606 3607 3608 #define QCA_DFU_PACKET_LEN 4096 3609 3610 #define QCA_GET_TARGET_VERSION 0x09 3611 #define QCA_CHECK_STATUS 0x05 3612 #define QCA_DFU_DOWNLOAD 0x01 3613 3614 #define QCA_SYSCFG_UPDATED 0x40 3615 #define QCA_PATCH_UPDATED 0x80 3616 #define QCA_DFU_TIMEOUT 3000 3617 #define QCA_FLAG_MULTI_NVM 0x80 3618 #define QCA_BT_RESET_WAIT_MS 100 3619 3620 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3621 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3622 3623 struct qca_version { 3624 __le32 rom_version; 3625 __le32 patch_version; 3626 __le32 ram_version; 3627 __u8 chip_id; 3628 __u8 platform_id; 3629 __le16 flag; 3630 __u8 reserved[4]; 3631 } __packed; 3632 3633 struct qca_rampatch_version { 3634 __le16 rom_version_high; 3635 __le16 rom_version_low; 3636 __le16 patch_version; 3637 } __packed; 3638 3639 struct qca_device_info { 3640 u32 rom_version; 3641 u8 rampatch_hdr; /* length of header in rampatch */ 3642 u8 nvm_hdr; /* length of header in NVM */ 3643 u8 ver_offset; /* offset of version structure in rampatch */ 3644 }; 3645 3646 static const struct qca_device_info qca_devices_table[] = { 3647 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3648 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3649 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3650 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3651 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3652 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3653 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3654 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3655 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3656 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3657 }; 3658 3659 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3660 void *data, u16 size) 3661 { 3662 int pipe, err; 3663 u8 *buf; 3664 3665 buf = kmalloc(size, GFP_KERNEL); 3666 if (!buf) 3667 return -ENOMEM; 3668 3669 /* Found some of USB hosts have IOT issues with ours so that we should 3670 * not wait until HCI layer is ready. 3671 */ 3672 pipe = usb_rcvctrlpipe(udev, 0); 3673 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3674 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3675 if (err < 0) { 3676 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3677 goto done; 3678 } 3679 3680 memcpy(data, buf, size); 3681 3682 done: 3683 kfree(buf); 3684 3685 return err; 3686 } 3687 3688 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3689 const struct firmware *firmware, 3690 size_t hdr_size) 3691 { 3692 struct btusb_data *btdata = hci_get_drvdata(hdev); 3693 struct usb_device *udev = btdata->udev; 3694 size_t count, size, sent = 0; 3695 int pipe, len, err; 3696 u8 *buf; 3697 3698 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3699 if (!buf) 3700 return -ENOMEM; 3701 3702 count = firmware->size; 3703 3704 size = min_t(size_t, count, hdr_size); 3705 memcpy(buf, firmware->data, size); 3706 3707 /* USB patches should go down to controller through USB path 3708 * because binary format fits to go down through USB channel. 3709 * USB control path is for patching headers and USB bulk is for 3710 * patch body. 3711 */ 3712 pipe = usb_sndctrlpipe(udev, 0); 3713 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3714 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3715 if (err < 0) { 3716 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3717 goto done; 3718 } 3719 3720 sent += size; 3721 count -= size; 3722 3723 /* ep2 need time to switch from function acl to function dfu, 3724 * so we add 20ms delay here. 3725 */ 3726 msleep(20); 3727 3728 while (count) { 3729 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3730 3731 memcpy(buf, firmware->data + sent, size); 3732 3733 pipe = usb_sndbulkpipe(udev, 0x02); 3734 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3735 QCA_DFU_TIMEOUT); 3736 if (err < 0) { 3737 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3738 sent, firmware->size, err); 3739 break; 3740 } 3741 3742 if (size != len) { 3743 bt_dev_err(hdev, "Failed to get bulk buffer"); 3744 err = -EILSEQ; 3745 break; 3746 } 3747 3748 sent += size; 3749 count -= size; 3750 } 3751 3752 done: 3753 kfree(buf); 3754 return err; 3755 } 3756 3757 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3758 struct qca_version *ver, 3759 const struct qca_device_info *info) 3760 { 3761 struct qca_rampatch_version *rver; 3762 const struct firmware *fw; 3763 u32 ver_rom, ver_patch, rver_rom; 3764 u16 rver_rom_low, rver_rom_high, rver_patch; 3765 char fwname[64]; 3766 int err; 3767 3768 ver_rom = le32_to_cpu(ver->rom_version); 3769 ver_patch = le32_to_cpu(ver->patch_version); 3770 3771 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3772 3773 err = request_firmware(&fw, fwname, &hdev->dev); 3774 if (err) { 3775 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3776 fwname, err); 3777 return err; 3778 } 3779 3780 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3781 3782 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3783 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3784 rver_patch = le16_to_cpu(rver->patch_version); 3785 3786 if (ver_rom & ~0xffffU) { 3787 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3788 rver_rom = rver_rom_high << 16 | rver_rom_low; 3789 } else { 3790 rver_rom = rver_rom_low; 3791 } 3792 3793 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3794 "firmware rome 0x%x build 0x%x", 3795 rver_rom, rver_patch, ver_rom, ver_patch); 3796 3797 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3798 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3799 err = -EINVAL; 3800 goto done; 3801 } 3802 3803 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3804 3805 done: 3806 release_firmware(fw); 3807 3808 return err; 3809 } 3810 3811 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3812 const struct qca_version *ver) 3813 { 3814 u32 rom_version = le32_to_cpu(ver->rom_version); 3815 u16 flag = le16_to_cpu(ver->flag); 3816 3817 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3818 /* The board_id should be split into two bytes 3819 * The 1st byte is chip ID, and the 2nd byte is platform ID 3820 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3821 * we have several platforms, and platform IDs are continuously added 3822 * Platform ID: 3823 * 0x00 is for Mobile 3824 * 0x01 is for X86 3825 * 0x02 is for Automotive 3826 * 0x03 is for Consumer electronic 3827 */ 3828 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3829 const char *variant; 3830 3831 switch (le32_to_cpu(ver->ram_version)) { 3832 case WCN6855_2_0_RAM_VERSION_GF: 3833 case WCN6855_2_1_RAM_VERSION_GF: 3834 variant = "_gf"; 3835 break; 3836 default: 3837 variant = ""; 3838 break; 3839 } 3840 3841 if (board_id == 0) { 3842 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3843 rom_version, variant); 3844 } else { 3845 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3846 rom_version, variant, board_id); 3847 } 3848 } else { 3849 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3850 rom_version); 3851 } 3852 3853 } 3854 3855 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3856 struct qca_version *ver, 3857 const struct qca_device_info *info) 3858 { 3859 const struct firmware *fw; 3860 char fwname[64]; 3861 int err; 3862 3863 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3864 3865 err = request_firmware(&fw, fwname, &hdev->dev); 3866 if (err) { 3867 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3868 fwname, err); 3869 return err; 3870 } 3871 3872 bt_dev_info(hdev, "using NVM file: %s", fwname); 3873 3874 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3875 3876 release_firmware(fw); 3877 3878 return err; 3879 } 3880 3881 /* identify the ROM version and check whether patches are needed */ 3882 static bool btusb_qca_need_patch(struct usb_device *udev) 3883 { 3884 struct qca_version ver; 3885 3886 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3887 sizeof(ver)) < 0) 3888 return false; 3889 /* only low ROM versions need patches */ 3890 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3891 } 3892 3893 static int btusb_setup_qca(struct hci_dev *hdev) 3894 { 3895 struct btusb_data *btdata = hci_get_drvdata(hdev); 3896 struct usb_device *udev = btdata->udev; 3897 const struct qca_device_info *info = NULL; 3898 struct qca_version ver; 3899 u32 ver_rom; 3900 u8 status; 3901 int i, err; 3902 3903 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3904 sizeof(ver)); 3905 if (err < 0) 3906 return err; 3907 3908 ver_rom = le32_to_cpu(ver.rom_version); 3909 3910 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3911 if (ver_rom == qca_devices_table[i].rom_version) 3912 info = &qca_devices_table[i]; 3913 } 3914 if (!info) { 3915 /* If the rom_version is not matched in the qca_devices_table 3916 * and the high ROM version is not zero, we assume this chip no 3917 * need to load the rampatch and nvm. 3918 */ 3919 if (ver_rom & ~0xffffU) 3920 return 0; 3921 3922 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3923 return -ENODEV; 3924 } 3925 3926 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3927 sizeof(status)); 3928 if (err < 0) 3929 return err; 3930 3931 if (!(status & QCA_PATCH_UPDATED)) { 3932 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3933 if (err < 0) 3934 return err; 3935 } 3936 3937 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3938 sizeof(ver)); 3939 if (err < 0) 3940 return err; 3941 3942 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3943 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3944 3945 if (!(status & QCA_SYSCFG_UPDATED)) { 3946 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3947 if (err < 0) 3948 return err; 3949 3950 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3951 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3952 * cause potential enable failure. 3953 */ 3954 if (info->rom_version >= 0x00130201) 3955 msleep(QCA_BT_RESET_WAIT_MS); 3956 } 3957 3958 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3959 * work with the likes of HSP/HFP mSBC. 3960 */ 3961 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3962 3963 return 0; 3964 } 3965 3966 static inline int __set_diag_interface(struct hci_dev *hdev) 3967 { 3968 struct btusb_data *data = hci_get_drvdata(hdev); 3969 struct usb_interface *intf = data->diag; 3970 int i; 3971 3972 if (!data->diag) 3973 return -ENODEV; 3974 3975 data->diag_tx_ep = NULL; 3976 data->diag_rx_ep = NULL; 3977 3978 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3979 struct usb_endpoint_descriptor *ep_desc; 3980 3981 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3982 3983 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3984 data->diag_tx_ep = ep_desc; 3985 continue; 3986 } 3987 3988 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3989 data->diag_rx_ep = ep_desc; 3990 continue; 3991 } 3992 } 3993 3994 if (!data->diag_tx_ep || !data->diag_rx_ep) { 3995 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3996 return -ENODEV; 3997 } 3998 3999 return 0; 4000 } 4001 4002 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 4003 { 4004 struct btusb_data *data = hci_get_drvdata(hdev); 4005 struct sk_buff *skb; 4006 struct urb *urb; 4007 unsigned int pipe; 4008 4009 if (!data->diag_tx_ep) 4010 return ERR_PTR(-ENODEV); 4011 4012 urb = usb_alloc_urb(0, GFP_KERNEL); 4013 if (!urb) 4014 return ERR_PTR(-ENOMEM); 4015 4016 skb = bt_skb_alloc(2, GFP_KERNEL); 4017 if (!skb) { 4018 usb_free_urb(urb); 4019 return ERR_PTR(-ENOMEM); 4020 } 4021 4022 skb_put_u8(skb, 0xf0); 4023 skb_put_u8(skb, enable); 4024 4025 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 4026 4027 usb_fill_bulk_urb(urb, data->udev, pipe, 4028 skb->data, skb->len, btusb_tx_complete, skb); 4029 4030 skb->dev = (void *)hdev; 4031 4032 return urb; 4033 } 4034 4035 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 4036 { 4037 struct btusb_data *data = hci_get_drvdata(hdev); 4038 struct urb *urb; 4039 4040 if (!data->diag) 4041 return -ENODEV; 4042 4043 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4044 return -ENETDOWN; 4045 4046 urb = alloc_diag_urb(hdev, enable); 4047 if (IS_ERR(urb)) 4048 return PTR_ERR(urb); 4049 4050 return submit_or_queue_tx_urb(hdev, urb); 4051 } 4052 4053 #ifdef CONFIG_PM 4054 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 4055 { 4056 struct btusb_data *data = priv; 4057 4058 pm_wakeup_event(&data->udev->dev, 0); 4059 pm_system_wakeup(); 4060 4061 /* Disable only if not already disabled (keep it balanced) */ 4062 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4063 disable_irq_nosync(irq); 4064 disable_irq_wake(irq); 4065 } 4066 return IRQ_HANDLED; 4067 } 4068 4069 static const struct of_device_id btusb_match_table[] = { 4070 { .compatible = "usb1286,204e" }, 4071 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 4072 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 4073 { } 4074 }; 4075 MODULE_DEVICE_TABLE(of, btusb_match_table); 4076 4077 /* Use an oob wakeup pin? */ 4078 static int btusb_config_oob_wake(struct hci_dev *hdev) 4079 { 4080 struct btusb_data *data = hci_get_drvdata(hdev); 4081 struct device *dev = &data->udev->dev; 4082 int irq, ret; 4083 4084 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4085 4086 if (!of_match_device(btusb_match_table, dev)) 4087 return 0; 4088 4089 /* Move on if no IRQ specified */ 4090 irq = of_irq_get_byname(dev->of_node, "wakeup"); 4091 if (irq <= 0) { 4092 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 4093 return 0; 4094 } 4095 4096 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4097 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 4098 0, "OOB Wake-on-BT", data); 4099 if (ret) { 4100 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4101 return ret; 4102 } 4103 4104 ret = device_init_wakeup(dev, true); 4105 if (ret) { 4106 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4107 return ret; 4108 } 4109 4110 data->oob_wake_irq = irq; 4111 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4112 return 0; 4113 } 4114 #endif 4115 4116 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4117 { 4118 if (dmi_check_system(btusb_needs_reset_resume_table)) 4119 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4120 } 4121 4122 static bool btusb_wakeup(struct hci_dev *hdev) 4123 { 4124 struct btusb_data *data = hci_get_drvdata(hdev); 4125 4126 return device_may_wakeup(&data->udev->dev); 4127 } 4128 4129 static int btusb_shutdown_qca(struct hci_dev *hdev) 4130 { 4131 struct sk_buff *skb; 4132 4133 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 4134 if (IS_ERR(skb)) { 4135 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4136 return PTR_ERR(skb); 4137 } 4138 kfree_skb(skb); 4139 4140 return 0; 4141 } 4142 4143 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4144 size_t count, loff_t *ppos) 4145 { 4146 struct btusb_data *data = file->private_data; 4147 char buf[3]; 4148 4149 buf[0] = data->poll_sync ? 'Y' : 'N'; 4150 buf[1] = '\n'; 4151 buf[2] = '\0'; 4152 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4153 } 4154 4155 static ssize_t force_poll_sync_write(struct file *file, 4156 const char __user *user_buf, 4157 size_t count, loff_t *ppos) 4158 { 4159 struct btusb_data *data = file->private_data; 4160 bool enable; 4161 int err; 4162 4163 err = kstrtobool_from_user(user_buf, count, &enable); 4164 if (err) 4165 return err; 4166 4167 /* Only allow changes while the adapter is down */ 4168 if (test_bit(HCI_UP, &data->hdev->flags)) 4169 return -EPERM; 4170 4171 if (data->poll_sync == enable) 4172 return -EALREADY; 4173 4174 data->poll_sync = enable; 4175 4176 return count; 4177 } 4178 4179 static const struct file_operations force_poll_sync_fops = { 4180 .open = simple_open, 4181 .read = force_poll_sync_read, 4182 .write = force_poll_sync_write, 4183 .llseek = default_llseek, 4184 }; 4185 4186 static int btusb_probe(struct usb_interface *intf, 4187 const struct usb_device_id *id) 4188 { 4189 struct usb_endpoint_descriptor *ep_desc; 4190 struct gpio_desc *reset_gpio; 4191 struct btusb_data *data; 4192 struct hci_dev *hdev; 4193 unsigned ifnum_base; 4194 int i, err, priv_size; 4195 4196 BT_DBG("intf %p id %p", intf, id); 4197 4198 if ((id->driver_info & BTUSB_IFNUM_2) && 4199 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4200 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4201 return -ENODEV; 4202 4203 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4204 4205 if (!id->driver_info) { 4206 const struct usb_device_id *match; 4207 4208 match = usb_match_id(intf, quirks_table); 4209 if (match) 4210 id = match; 4211 } 4212 4213 if (id->driver_info == BTUSB_IGNORE) 4214 return -ENODEV; 4215 4216 if (id->driver_info & BTUSB_ATH3012) { 4217 struct usb_device *udev = interface_to_usbdev(intf); 4218 4219 /* Old firmware would otherwise let ath3k driver load 4220 * patch and sysconfig files 4221 */ 4222 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4223 !btusb_qca_need_patch(udev)) 4224 return -ENODEV; 4225 } 4226 4227 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 4228 if (!data) 4229 return -ENOMEM; 4230 4231 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4232 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4233 4234 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 4235 data->intr_ep = ep_desc; 4236 continue; 4237 } 4238 4239 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4240 data->bulk_tx_ep = ep_desc; 4241 continue; 4242 } 4243 4244 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4245 data->bulk_rx_ep = ep_desc; 4246 continue; 4247 } 4248 } 4249 4250 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 4251 return -ENODEV; 4252 4253 if (id->driver_info & BTUSB_AMP) { 4254 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4255 data->cmdreq = 0x2b; 4256 } else { 4257 data->cmdreq_type = USB_TYPE_CLASS; 4258 data->cmdreq = 0x00; 4259 } 4260 4261 data->udev = interface_to_usbdev(intf); 4262 data->intf = intf; 4263 4264 INIT_WORK(&data->work, btusb_work); 4265 INIT_WORK(&data->waker, btusb_waker); 4266 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4267 4268 skb_queue_head_init(&data->acl_q); 4269 4270 init_usb_anchor(&data->deferred); 4271 init_usb_anchor(&data->tx_anchor); 4272 spin_lock_init(&data->txlock); 4273 4274 init_usb_anchor(&data->intr_anchor); 4275 init_usb_anchor(&data->bulk_anchor); 4276 init_usb_anchor(&data->isoc_anchor); 4277 init_usb_anchor(&data->diag_anchor); 4278 init_usb_anchor(&data->ctrl_anchor); 4279 spin_lock_init(&data->rxlock); 4280 4281 priv_size = 0; 4282 4283 data->recv_event = hci_recv_frame; 4284 data->recv_bulk = btusb_recv_bulk; 4285 4286 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4287 /* Allocate extra space for Intel device */ 4288 priv_size += sizeof(struct btintel_data); 4289 4290 /* Override the rx handlers */ 4291 data->recv_event = btintel_recv_event; 4292 data->recv_bulk = btusb_recv_bulk_intel; 4293 } else if (id->driver_info & BTUSB_REALTEK) { 4294 /* Allocate extra space for Realtek device */ 4295 priv_size += sizeof(struct btrealtek_data); 4296 4297 data->recv_event = btusb_recv_event_realtek; 4298 } else if (id->driver_info & BTUSB_MEDIATEK) { 4299 /* Allocate extra space for Mediatek device */ 4300 priv_size += sizeof(struct btmediatek_data); 4301 } 4302 4303 data->recv_acl = hci_recv_frame; 4304 4305 hdev = hci_alloc_dev_priv(priv_size); 4306 if (!hdev) 4307 return -ENOMEM; 4308 4309 hdev->bus = HCI_USB; 4310 hci_set_drvdata(hdev, data); 4311 4312 if (id->driver_info & BTUSB_AMP) 4313 hdev->dev_type = HCI_AMP; 4314 else 4315 hdev->dev_type = HCI_PRIMARY; 4316 4317 data->hdev = hdev; 4318 4319 SET_HCIDEV_DEV(hdev, &intf->dev); 4320 4321 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4322 GPIOD_OUT_LOW); 4323 if (IS_ERR(reset_gpio)) { 4324 err = PTR_ERR(reset_gpio); 4325 goto out_free_dev; 4326 } else if (reset_gpio) { 4327 data->reset_gpio = reset_gpio; 4328 } 4329 4330 hdev->open = btusb_open; 4331 hdev->close = btusb_close; 4332 hdev->flush = btusb_flush; 4333 hdev->send = btusb_send_frame; 4334 hdev->notify = btusb_notify; 4335 hdev->wakeup = btusb_wakeup; 4336 4337 #ifdef CONFIG_PM 4338 err = btusb_config_oob_wake(hdev); 4339 if (err) 4340 goto out_free_dev; 4341 4342 /* Marvell devices may need a specific chip configuration */ 4343 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4344 err = marvell_config_oob_wake(hdev); 4345 if (err) 4346 goto out_free_dev; 4347 } 4348 #endif 4349 if (id->driver_info & BTUSB_CW6622) 4350 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4351 4352 if (id->driver_info & BTUSB_BCM2045) 4353 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4354 4355 if (id->driver_info & BTUSB_BCM92035) 4356 hdev->setup = btusb_setup_bcm92035; 4357 4358 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4359 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4360 hdev->manufacturer = 15; 4361 hdev->setup = btbcm_setup_patchram; 4362 hdev->set_diag = btusb_bcm_set_diag; 4363 hdev->set_bdaddr = btbcm_set_bdaddr; 4364 4365 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4366 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4367 } 4368 4369 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4370 (id->driver_info & BTUSB_BCM_APPLE)) { 4371 hdev->manufacturer = 15; 4372 hdev->setup = btbcm_setup_apple; 4373 hdev->set_diag = btusb_bcm_set_diag; 4374 4375 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4376 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4377 } 4378 4379 /* Combined Intel Device setup to support multiple setup routine */ 4380 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4381 err = btintel_configure_setup(hdev, btusb_driver.name); 4382 if (err) 4383 goto out_free_dev; 4384 4385 /* Transport specific configuration */ 4386 hdev->send = btusb_send_frame_intel; 4387 hdev->cmd_timeout = btusb_intel_cmd_timeout; 4388 4389 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4390 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4391 4392 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4393 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4394 4395 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4396 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4397 } 4398 4399 if (id->driver_info & BTUSB_MARVELL) 4400 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4401 4402 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4403 (id->driver_info & BTUSB_MEDIATEK)) { 4404 hdev->setup = btusb_mtk_setup; 4405 hdev->shutdown = btusb_mtk_shutdown; 4406 hdev->manufacturer = 70; 4407 hdev->cmd_timeout = btmtk_reset_sync; 4408 hdev->set_bdaddr = btmtk_set_bdaddr; 4409 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4410 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4411 data->recv_acl = btusb_recv_acl_mtk; 4412 } 4413 4414 if (id->driver_info & BTUSB_SWAVE) { 4415 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4416 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4417 } 4418 4419 if (id->driver_info & BTUSB_INTEL_BOOT) { 4420 hdev->manufacturer = 2; 4421 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4422 } 4423 4424 if (id->driver_info & BTUSB_ATH3012) { 4425 data->setup_on_usb = btusb_setup_qca; 4426 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4427 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4428 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4429 } 4430 4431 if (id->driver_info & BTUSB_QCA_ROME) { 4432 data->setup_on_usb = btusb_setup_qca; 4433 hdev->shutdown = btusb_shutdown_qca; 4434 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4435 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4436 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4437 btusb_check_needs_reset_resume(intf); 4438 } 4439 4440 if (id->driver_info & BTUSB_QCA_WCN6855) { 4441 data->qca_dump.id_vendor = id->idVendor; 4442 data->qca_dump.id_product = id->idProduct; 4443 data->recv_event = btusb_recv_evt_qca; 4444 data->recv_acl = btusb_recv_acl_qca; 4445 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4446 data->setup_on_usb = btusb_setup_qca; 4447 hdev->shutdown = btusb_shutdown_qca; 4448 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4449 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4450 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4451 hci_set_msft_opcode(hdev, 0xFD70); 4452 } 4453 4454 if (id->driver_info & BTUSB_AMP) { 4455 /* AMP controllers do not support SCO packets */ 4456 data->isoc = NULL; 4457 } else { 4458 /* Interface orders are hardcoded in the specification */ 4459 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4460 data->isoc_ifnum = ifnum_base + 1; 4461 } 4462 4463 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4464 (id->driver_info & BTUSB_REALTEK)) { 4465 btrtl_set_driver_name(hdev, btusb_driver.name); 4466 hdev->setup = btusb_setup_realtek; 4467 hdev->shutdown = btrtl_shutdown_realtek; 4468 hdev->cmd_timeout = btusb_rtl_cmd_timeout; 4469 hdev->hw_error = btusb_rtl_hw_error; 4470 4471 /* Realtek devices need to set remote wakeup on auto-suspend */ 4472 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4473 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4474 } 4475 4476 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4477 /* Support is advertised, but not implemented */ 4478 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4479 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4480 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4481 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4482 } 4483 4484 if (!reset) 4485 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4486 4487 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4488 if (!disable_scofix) 4489 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4490 } 4491 4492 if (id->driver_info & BTUSB_BROKEN_ISOC) 4493 data->isoc = NULL; 4494 4495 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4496 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4497 4498 if (id->driver_info & BTUSB_VALID_LE_STATES) 4499 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); 4500 4501 if (id->driver_info & BTUSB_DIGIANSWER) { 4502 data->cmdreq_type = USB_TYPE_VENDOR; 4503 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4504 } 4505 4506 if (id->driver_info & BTUSB_CSR) { 4507 struct usb_device *udev = data->udev; 4508 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4509 4510 /* Old firmware would otherwise execute USB reset */ 4511 if (bcdDevice < 0x117) 4512 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4513 4514 /* This must be set first in case we disable it for fakes */ 4515 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4516 4517 /* Fake CSR devices with broken commands */ 4518 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4519 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4520 hdev->setup = btusb_setup_csr; 4521 } 4522 4523 if (id->driver_info & BTUSB_SNIFFER) { 4524 struct usb_device *udev = data->udev; 4525 4526 /* New sniffer firmware has crippled HCI interface */ 4527 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4528 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4529 } 4530 4531 if (id->driver_info & BTUSB_INTEL_BOOT) { 4532 /* A bug in the bootloader causes that interrupt interface is 4533 * only enabled after receiving SetInterface(0, AltSetting=0). 4534 */ 4535 err = usb_set_interface(data->udev, 0, 0); 4536 if (err < 0) { 4537 BT_ERR("failed to set interface 0, alt 0 %d", err); 4538 goto out_free_dev; 4539 } 4540 } 4541 4542 if (data->isoc) { 4543 err = usb_driver_claim_interface(&btusb_driver, 4544 data->isoc, data); 4545 if (err < 0) 4546 goto out_free_dev; 4547 } 4548 4549 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4550 if (!usb_driver_claim_interface(&btusb_driver, 4551 data->diag, data)) 4552 __set_diag_interface(hdev); 4553 else 4554 data->diag = NULL; 4555 } 4556 4557 if (enable_autosuspend) 4558 usb_enable_autosuspend(data->udev); 4559 4560 data->poll_sync = enable_poll_sync; 4561 4562 err = hci_register_dev(hdev); 4563 if (err < 0) 4564 goto out_free_dev; 4565 4566 usb_set_intfdata(intf, data); 4567 4568 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4569 &force_poll_sync_fops); 4570 4571 return 0; 4572 4573 out_free_dev: 4574 if (data->reset_gpio) 4575 gpiod_put(data->reset_gpio); 4576 hci_free_dev(hdev); 4577 return err; 4578 } 4579 4580 static void btusb_disconnect(struct usb_interface *intf) 4581 { 4582 struct btusb_data *data = usb_get_intfdata(intf); 4583 struct hci_dev *hdev; 4584 4585 BT_DBG("intf %p", intf); 4586 4587 if (!data) 4588 return; 4589 4590 hdev = data->hdev; 4591 usb_set_intfdata(data->intf, NULL); 4592 4593 if (data->isoc) 4594 usb_set_intfdata(data->isoc, NULL); 4595 4596 if (data->diag) 4597 usb_set_intfdata(data->diag, NULL); 4598 4599 hci_unregister_dev(hdev); 4600 4601 if (intf == data->intf) { 4602 if (data->isoc) 4603 usb_driver_release_interface(&btusb_driver, data->isoc); 4604 if (data->diag) 4605 usb_driver_release_interface(&btusb_driver, data->diag); 4606 } else if (intf == data->isoc) { 4607 if (data->diag) 4608 usb_driver_release_interface(&btusb_driver, data->diag); 4609 usb_driver_release_interface(&btusb_driver, data->intf); 4610 } else if (intf == data->diag) { 4611 usb_driver_release_interface(&btusb_driver, data->intf); 4612 if (data->isoc) 4613 usb_driver_release_interface(&btusb_driver, data->isoc); 4614 } 4615 4616 if (data->oob_wake_irq) 4617 device_init_wakeup(&data->udev->dev, false); 4618 4619 if (data->reset_gpio) 4620 gpiod_put(data->reset_gpio); 4621 4622 hci_free_dev(hdev); 4623 } 4624 4625 #ifdef CONFIG_PM 4626 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4627 { 4628 struct btusb_data *data = usb_get_intfdata(intf); 4629 4630 BT_DBG("intf %p", intf); 4631 4632 if (data->suspend_count++) 4633 return 0; 4634 4635 spin_lock_irq(&data->txlock); 4636 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4637 set_bit(BTUSB_SUSPENDING, &data->flags); 4638 spin_unlock_irq(&data->txlock); 4639 } else { 4640 spin_unlock_irq(&data->txlock); 4641 data->suspend_count--; 4642 return -EBUSY; 4643 } 4644 4645 cancel_work_sync(&data->work); 4646 4647 btusb_stop_traffic(data); 4648 usb_kill_anchored_urbs(&data->tx_anchor); 4649 4650 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4651 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4652 enable_irq_wake(data->oob_wake_irq); 4653 enable_irq(data->oob_wake_irq); 4654 } 4655 4656 /* For global suspend, Realtek devices lose the loaded fw 4657 * in them. But for autosuspend, firmware should remain. 4658 * Actually, it depends on whether the usb host sends 4659 * set feature (enable wakeup) or not. 4660 */ 4661 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4662 if (PMSG_IS_AUTO(message) && 4663 device_can_wakeup(&data->udev->dev)) 4664 data->udev->do_remote_wakeup = 1; 4665 else if (!PMSG_IS_AUTO(message) && 4666 !device_may_wakeup(&data->udev->dev)) { 4667 data->udev->do_remote_wakeup = 0; 4668 data->udev->reset_resume = 1; 4669 } 4670 } 4671 4672 return 0; 4673 } 4674 4675 static void play_deferred(struct btusb_data *data) 4676 { 4677 struct urb *urb; 4678 int err; 4679 4680 while ((urb = usb_get_from_anchor(&data->deferred))) { 4681 usb_anchor_urb(urb, &data->tx_anchor); 4682 4683 err = usb_submit_urb(urb, GFP_ATOMIC); 4684 if (err < 0) { 4685 if (err != -EPERM && err != -ENODEV) 4686 BT_ERR("%s urb %p submission failed (%d)", 4687 data->hdev->name, urb, -err); 4688 kfree(urb->setup_packet); 4689 usb_unanchor_urb(urb); 4690 usb_free_urb(urb); 4691 break; 4692 } 4693 4694 data->tx_in_flight++; 4695 usb_free_urb(urb); 4696 } 4697 4698 /* Cleanup the rest deferred urbs. */ 4699 while ((urb = usb_get_from_anchor(&data->deferred))) { 4700 kfree(urb->setup_packet); 4701 usb_free_urb(urb); 4702 } 4703 } 4704 4705 static int btusb_resume(struct usb_interface *intf) 4706 { 4707 struct btusb_data *data = usb_get_intfdata(intf); 4708 struct hci_dev *hdev = data->hdev; 4709 int err = 0; 4710 4711 BT_DBG("intf %p", intf); 4712 4713 if (--data->suspend_count) 4714 return 0; 4715 4716 /* Disable only if not already disabled (keep it balanced) */ 4717 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4718 disable_irq(data->oob_wake_irq); 4719 disable_irq_wake(data->oob_wake_irq); 4720 } 4721 4722 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4723 goto done; 4724 4725 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4726 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4727 if (err < 0) { 4728 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4729 goto failed; 4730 } 4731 } 4732 4733 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4734 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4735 if (err < 0) { 4736 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4737 goto failed; 4738 } 4739 4740 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4741 } 4742 4743 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4744 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4745 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4746 else 4747 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4748 } 4749 4750 spin_lock_irq(&data->txlock); 4751 play_deferred(data); 4752 clear_bit(BTUSB_SUSPENDING, &data->flags); 4753 spin_unlock_irq(&data->txlock); 4754 schedule_work(&data->work); 4755 4756 return 0; 4757 4758 failed: 4759 usb_scuttle_anchored_urbs(&data->deferred); 4760 done: 4761 spin_lock_irq(&data->txlock); 4762 clear_bit(BTUSB_SUSPENDING, &data->flags); 4763 spin_unlock_irq(&data->txlock); 4764 4765 return err; 4766 } 4767 #endif 4768 4769 #ifdef CONFIG_DEV_COREDUMP 4770 static void btusb_coredump(struct device *dev) 4771 { 4772 struct btusb_data *data = dev_get_drvdata(dev); 4773 struct hci_dev *hdev = data->hdev; 4774 4775 if (hdev->dump.coredump) 4776 hdev->dump.coredump(hdev); 4777 } 4778 #endif 4779 4780 static struct usb_driver btusb_driver = { 4781 .name = "btusb", 4782 .probe = btusb_probe, 4783 .disconnect = btusb_disconnect, 4784 #ifdef CONFIG_PM 4785 .suspend = btusb_suspend, 4786 .resume = btusb_resume, 4787 #endif 4788 .id_table = btusb_table, 4789 .supports_autosuspend = 1, 4790 .disable_hub_initiated_lpm = 1, 4791 4792 #ifdef CONFIG_DEV_COREDUMP 4793 .drvwrap = { 4794 .driver = { 4795 .coredump = btusb_coredump, 4796 }, 4797 }, 4798 #endif 4799 }; 4800 4801 module_usb_driver(btusb_driver); 4802 4803 module_param(disable_scofix, bool, 0644); 4804 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4805 4806 module_param(force_scofix, bool, 0644); 4807 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4808 4809 module_param(enable_autosuspend, bool, 0644); 4810 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4811 4812 module_param(reset, bool, 0644); 4813 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4814 4815 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4816 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4817 MODULE_VERSION(VERSION); 4818 MODULE_LICENSE("GPL"); 4819