1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Generic Bluetooth USB driver 5 * 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 7 */ 8 9 #include <linux/dmi.h> 10 #include <linux/module.h> 11 #include <linux/usb.h> 12 #include <linux/usb/quirks.h> 13 #include <linux/firmware.h> 14 #include <linux/iopoll.h> 15 #include <linux/of_device.h> 16 #include <linux/of_irq.h> 17 #include <linux/suspend.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/debugfs.h> 20 #include <asm/unaligned.h> 21 22 #include <net/bluetooth/bluetooth.h> 23 #include <net/bluetooth/hci_core.h> 24 25 #include "btintel.h" 26 #include "btbcm.h" 27 #include "btrtl.h" 28 #include "btmtk.h" 29 30 #define VERSION "0.8" 31 32 static bool disable_scofix; 33 static bool force_scofix; 34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 36 static bool reset = true; 37 38 static struct usb_driver btusb_driver; 39 40 #define BTUSB_IGNORE BIT(0) 41 #define BTUSB_DIGIANSWER BIT(1) 42 #define BTUSB_CSR BIT(2) 43 #define BTUSB_SNIFFER BIT(3) 44 #define BTUSB_BCM92035 BIT(4) 45 #define BTUSB_BROKEN_ISOC BIT(5) 46 #define BTUSB_WRONG_SCO_MTU BIT(6) 47 #define BTUSB_ATH3012 BIT(7) 48 #define BTUSB_INTEL_COMBINED BIT(8) 49 #define BTUSB_INTEL_BOOT BIT(9) 50 #define BTUSB_BCM_PATCHRAM BIT(10) 51 #define BTUSB_MARVELL BIT(11) 52 #define BTUSB_SWAVE BIT(12) 53 #define BTUSB_AMP BIT(13) 54 #define BTUSB_QCA_ROME BIT(14) 55 #define BTUSB_BCM_APPLE BIT(15) 56 #define BTUSB_REALTEK BIT(16) 57 #define BTUSB_BCM2045 BIT(17) 58 #define BTUSB_IFNUM_2 BIT(18) 59 #define BTUSB_CW6622 BIT(19) 60 #define BTUSB_MEDIATEK BIT(20) 61 #define BTUSB_WIDEBAND_SPEECH BIT(21) 62 #define BTUSB_VALID_LE_STATES BIT(22) 63 #define BTUSB_QCA_WCN6855 BIT(23) 64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 66 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 67 #define BTUSB_ACTIONS_SEMI BIT(27) 68 69 static const struct usb_device_id btusb_table[] = { 70 /* Generic Bluetooth USB device */ 71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 72 73 /* Generic Bluetooth AMP device */ 74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 75 76 /* Generic Bluetooth USB interface */ 77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 78 79 /* Apple-specific (Broadcom) devices */ 80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 82 83 /* MediaTek MT76x0E */ 84 { USB_DEVICE(0x0e8d, 0x763f) }, 85 86 /* Broadcom SoftSailing reporting vendor specific */ 87 { USB_DEVICE(0x0a5c, 0x21e1) }, 88 89 /* Apple MacBookPro 7,1 */ 90 { USB_DEVICE(0x05ac, 0x8213) }, 91 92 /* Apple iMac11,1 */ 93 { USB_DEVICE(0x05ac, 0x8215) }, 94 95 /* Apple MacBookPro6,2 */ 96 { USB_DEVICE(0x05ac, 0x8218) }, 97 98 /* Apple MacBookAir3,1, MacBookAir3,2 */ 99 { USB_DEVICE(0x05ac, 0x821b) }, 100 101 /* Apple MacBookAir4,1 */ 102 { USB_DEVICE(0x05ac, 0x821f) }, 103 104 /* Apple MacBookPro8,2 */ 105 { USB_DEVICE(0x05ac, 0x821a) }, 106 107 /* Apple MacMini5,1 */ 108 { USB_DEVICE(0x05ac, 0x8281) }, 109 110 /* AVM BlueFRITZ! USB v2.0 */ 111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 112 113 /* Bluetooth Ultraport Module from IBM */ 114 { USB_DEVICE(0x04bf, 0x030a) }, 115 116 /* ALPS Modules with non-standard id */ 117 { USB_DEVICE(0x044e, 0x3001) }, 118 { USB_DEVICE(0x044e, 0x3002) }, 119 120 /* Ericsson with non-standard id */ 121 { USB_DEVICE(0x0bdb, 0x1002) }, 122 123 /* Canyon CN-BTU1 with HID interfaces */ 124 { USB_DEVICE(0x0c10, 0x0000) }, 125 126 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 128 129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 131 .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* Broadcom BCM920703 (HTC Vive) */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Foxconn - Hon Hai */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Lite-On Technology - Broadcom based */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Broadcom devices with vendor specific id */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* ASUSTek Computer - Broadcom based */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* Belkin F8065bf - Broadcom based */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* IMC Networks - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* Dell Computer - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* Toshiba Corp - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Intel Bluetooth USB Bootloader (RAM module) */ 170 { USB_DEVICE(0x8087, 0x0a5a), 171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 172 173 { } /* Terminating entry */ 174 }; 175 176 MODULE_DEVICE_TABLE(usb, btusb_table); 177 178 static const struct usb_device_id quirks_table[] = { 179 /* CSR BlueCore devices */ 180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 181 182 /* Broadcom BCM2033 without firmware */ 183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 184 185 /* Broadcom BCM2045 devices */ 186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 187 188 /* Atheros 3011 with sflash firmware */ 189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 196 197 /* Atheros AR9285 Malbec with sflash firmware */ 198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 199 200 /* Atheros 3012 with sflash firmware */ 201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 251 252 /* Atheros AR5BBU12 with sflash firmware */ 253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 254 255 /* Atheros AR5BBU12 with sflash firmware */ 256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 258 259 /* QCA ROME chipset */ 260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 261 BTUSB_WIDEBAND_SPEECH }, 262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 263 BTUSB_WIDEBAND_SPEECH }, 264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 265 BTUSB_WIDEBAND_SPEECH }, 266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 267 BTUSB_WIDEBAND_SPEECH }, 268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 269 BTUSB_WIDEBAND_SPEECH }, 270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 271 BTUSB_WIDEBAND_SPEECH }, 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 273 BTUSB_WIDEBAND_SPEECH }, 274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 275 BTUSB_WIDEBAND_SPEECH }, 276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 299 /* QCA WCN6855 chipset */ 300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 301 BTUSB_WIDEBAND_SPEECH | 302 BTUSB_VALID_LE_STATES }, 303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 304 BTUSB_WIDEBAND_SPEECH | 305 BTUSB_VALID_LE_STATES }, 306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 307 BTUSB_WIDEBAND_SPEECH | 308 BTUSB_VALID_LE_STATES }, 309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 310 BTUSB_WIDEBAND_SPEECH | 311 BTUSB_VALID_LE_STATES }, 312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 313 BTUSB_WIDEBAND_SPEECH | 314 BTUSB_VALID_LE_STATES }, 315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH | 317 BTUSB_VALID_LE_STATES }, 318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 319 BTUSB_WIDEBAND_SPEECH | 320 BTUSB_VALID_LE_STATES }, 321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH | 323 BTUSB_VALID_LE_STATES }, 324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH | 326 BTUSB_VALID_LE_STATES }, 327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH | 329 BTUSB_VALID_LE_STATES }, 330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH | 332 BTUSB_VALID_LE_STATES }, 333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH | 335 BTUSB_VALID_LE_STATES }, 336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH | 338 BTUSB_VALID_LE_STATES }, 339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH | 341 BTUSB_VALID_LE_STATES }, 342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH | 344 BTUSB_VALID_LE_STATES }, 345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH | 347 BTUSB_VALID_LE_STATES }, 348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH | 350 BTUSB_VALID_LE_STATES }, 351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH | 353 BTUSB_VALID_LE_STATES }, 354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH | 356 BTUSB_VALID_LE_STATES }, 357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH | 359 BTUSB_VALID_LE_STATES }, 360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH | 362 BTUSB_VALID_LE_STATES }, 363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH | 365 BTUSB_VALID_LE_STATES }, 366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH | 368 BTUSB_VALID_LE_STATES }, 369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH | 371 BTUSB_VALID_LE_STATES }, 372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH | 374 BTUSB_VALID_LE_STATES }, 375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH | 377 BTUSB_VALID_LE_STATES }, 378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 379 BTUSB_WIDEBAND_SPEECH | 380 BTUSB_VALID_LE_STATES }, 381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH | 383 BTUSB_VALID_LE_STATES }, 384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH | 386 BTUSB_VALID_LE_STATES }, 387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 388 BTUSB_WIDEBAND_SPEECH | 389 BTUSB_VALID_LE_STATES }, 390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH | 392 BTUSB_VALID_LE_STATES }, 393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 394 BTUSB_WIDEBAND_SPEECH | 395 BTUSB_VALID_LE_STATES }, 396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH | 398 BTUSB_VALID_LE_STATES }, 399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH | 401 BTUSB_VALID_LE_STATES }, 402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH | 404 BTUSB_VALID_LE_STATES }, 405 406 /* QCA WCN785x chipset */ 407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH | 409 BTUSB_VALID_LE_STATES }, 410 411 /* Broadcom BCM2035 */ 412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 415 416 /* Broadcom BCM2045 */ 417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 420 /* IBM/Lenovo ThinkPad with Broadcom chip */ 421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 424 /* HP laptop with Broadcom chip */ 425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 426 427 /* Dell laptop with Broadcom chip */ 428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 429 430 /* Dell Wireless 370 and 410 devices */ 431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 434 /* Belkin F8T012 and F8T013 devices */ 435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 438 /* Asus WL-BTD202 device */ 439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 441 /* Kensington Bluetooth USB adapter */ 442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 443 444 /* RTX Telecom based adapters with buggy SCO support */ 445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 447 448 /* CONWISE Technology based adapters with buggy SCO support */ 449 { USB_DEVICE(0x0e5e, 0x6622), 450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 451 452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 454 455 /* Digianswer devices */ 456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 458 459 /* CSR BlueCore Bluetooth Sniffer */ 460 { USB_DEVICE(0x0a12, 0x0002), 461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 462 463 /* Frontline ComProbe Bluetooth Sniffer */ 464 { USB_DEVICE(0x16d3, 0x0002), 465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 466 467 /* Marvell Bluetooth devices */ 468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 471 472 /* Intel Bluetooth devices */ 473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 480 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 481 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 482 BTUSB_INTEL_NO_WBS_SUPPORT | 483 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 484 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 485 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 486 BTUSB_INTEL_NO_WBS_SUPPORT | 487 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 488 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 489 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 490 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 491 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 492 493 /* Other Intel Bluetooth devices */ 494 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 495 .driver_info = BTUSB_IGNORE }, 496 497 /* Realtek 8821CE Bluetooth devices */ 498 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 499 BTUSB_WIDEBAND_SPEECH }, 500 501 /* Realtek 8822CE Bluetooth devices */ 502 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 503 BTUSB_WIDEBAND_SPEECH }, 504 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 505 BTUSB_WIDEBAND_SPEECH }, 506 507 /* Realtek 8822CU Bluetooth devices */ 508 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 509 BTUSB_WIDEBAND_SPEECH }, 510 511 /* Realtek 8852AE Bluetooth devices */ 512 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 513 BTUSB_WIDEBAND_SPEECH }, 514 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 515 BTUSB_WIDEBAND_SPEECH }, 516 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 517 BTUSB_WIDEBAND_SPEECH }, 518 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 519 BTUSB_WIDEBAND_SPEECH }, 520 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 521 BTUSB_WIDEBAND_SPEECH }, 522 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 523 BTUSB_WIDEBAND_SPEECH }, 524 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 525 BTUSB_WIDEBAND_SPEECH }, 526 527 /* Realtek 8852CE Bluetooth devices */ 528 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 529 BTUSB_WIDEBAND_SPEECH }, 530 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 531 BTUSB_WIDEBAND_SPEECH }, 532 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 533 BTUSB_WIDEBAND_SPEECH }, 534 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 535 BTUSB_WIDEBAND_SPEECH }, 536 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 537 BTUSB_WIDEBAND_SPEECH }, 538 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 539 BTUSB_WIDEBAND_SPEECH }, 540 541 /* Realtek 8852BE Bluetooth devices */ 542 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 543 BTUSB_WIDEBAND_SPEECH }, 544 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 545 BTUSB_WIDEBAND_SPEECH }, 546 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 547 BTUSB_WIDEBAND_SPEECH }, 548 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 549 BTUSB_WIDEBAND_SPEECH }, 550 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 551 BTUSB_WIDEBAND_SPEECH }, 552 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 553 BTUSB_WIDEBAND_SPEECH }, 554 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 555 BTUSB_WIDEBAND_SPEECH }, 556 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 557 BTUSB_WIDEBAND_SPEECH }, 558 559 /* Realtek Bluetooth devices */ 560 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 561 .driver_info = BTUSB_REALTEK }, 562 563 /* MediaTek Bluetooth devices */ 564 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 565 .driver_info = BTUSB_MEDIATEK | 566 BTUSB_WIDEBAND_SPEECH | 567 BTUSB_VALID_LE_STATES }, 568 569 /* Additional MediaTek MT7615E Bluetooth devices */ 570 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 571 572 /* Additional MediaTek MT7663 Bluetooth devices */ 573 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 574 BTUSB_WIDEBAND_SPEECH | 575 BTUSB_VALID_LE_STATES }, 576 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 577 BTUSB_WIDEBAND_SPEECH | 578 BTUSB_VALID_LE_STATES }, 579 580 /* Additional MediaTek MT7668 Bluetooth devices */ 581 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 582 BTUSB_WIDEBAND_SPEECH | 583 BTUSB_VALID_LE_STATES }, 584 585 /* Additional MediaTek MT7921 Bluetooth devices */ 586 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 587 BTUSB_WIDEBAND_SPEECH | 588 BTUSB_VALID_LE_STATES }, 589 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 590 BTUSB_WIDEBAND_SPEECH | 591 BTUSB_VALID_LE_STATES }, 592 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 593 BTUSB_WIDEBAND_SPEECH | 594 BTUSB_VALID_LE_STATES }, 595 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 596 BTUSB_WIDEBAND_SPEECH | 597 BTUSB_VALID_LE_STATES }, 598 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 599 BTUSB_WIDEBAND_SPEECH | 600 BTUSB_VALID_LE_STATES }, 601 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 602 BTUSB_WIDEBAND_SPEECH | 603 BTUSB_VALID_LE_STATES }, 604 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 605 BTUSB_WIDEBAND_SPEECH | 606 BTUSB_VALID_LE_STATES }, 607 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 608 BTUSB_WIDEBAND_SPEECH | 609 BTUSB_VALID_LE_STATES }, 610 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 611 BTUSB_WIDEBAND_SPEECH | 612 BTUSB_VALID_LE_STATES }, 613 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 614 BTUSB_WIDEBAND_SPEECH | 615 BTUSB_VALID_LE_STATES }, 616 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 617 BTUSB_WIDEBAND_SPEECH | 618 BTUSB_VALID_LE_STATES }, 619 620 /* MediaTek MT7922A Bluetooth devices */ 621 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 622 BTUSB_WIDEBAND_SPEECH | 623 BTUSB_VALID_LE_STATES }, 624 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 625 BTUSB_WIDEBAND_SPEECH | 626 BTUSB_VALID_LE_STATES }, 627 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 628 BTUSB_WIDEBAND_SPEECH | 629 BTUSB_VALID_LE_STATES }, 630 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 631 BTUSB_WIDEBAND_SPEECH | 632 BTUSB_VALID_LE_STATES }, 633 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 634 BTUSB_WIDEBAND_SPEECH | 635 BTUSB_VALID_LE_STATES }, 636 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 637 BTUSB_WIDEBAND_SPEECH | 638 BTUSB_VALID_LE_STATES }, 639 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 640 BTUSB_WIDEBAND_SPEECH | 641 BTUSB_VALID_LE_STATES }, 642 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 643 BTUSB_WIDEBAND_SPEECH | 644 BTUSB_VALID_LE_STATES }, 645 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 646 BTUSB_WIDEBAND_SPEECH | 647 BTUSB_VALID_LE_STATES }, 648 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 649 BTUSB_WIDEBAND_SPEECH | 650 BTUSB_VALID_LE_STATES }, 651 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 652 BTUSB_WIDEBAND_SPEECH | 653 BTUSB_VALID_LE_STATES }, 654 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 655 BTUSB_WIDEBAND_SPEECH | 656 BTUSB_VALID_LE_STATES }, 657 658 /* Additional Realtek 8723AE Bluetooth devices */ 659 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 660 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 661 662 /* Additional Realtek 8723BE Bluetooth devices */ 663 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 664 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 665 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 666 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 667 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 668 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 669 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 670 671 /* Additional Realtek 8723BU Bluetooth devices */ 672 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 673 674 /* Additional Realtek 8723DE Bluetooth devices */ 675 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 676 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 677 678 /* Additional Realtek 8761BUV Bluetooth devices */ 679 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 680 BTUSB_WIDEBAND_SPEECH }, 681 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 682 BTUSB_WIDEBAND_SPEECH }, 683 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 684 BTUSB_WIDEBAND_SPEECH }, 685 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 686 BTUSB_WIDEBAND_SPEECH }, 687 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 688 BTUSB_WIDEBAND_SPEECH }, 689 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 690 BTUSB_WIDEBAND_SPEECH }, 691 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 692 BTUSB_WIDEBAND_SPEECH }, 693 694 /* Additional Realtek 8821AE Bluetooth devices */ 695 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 696 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 697 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 698 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 699 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 700 701 /* Additional Realtek 8822BE Bluetooth devices */ 702 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 703 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 704 705 /* Additional Realtek 8822CE Bluetooth devices */ 706 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 707 BTUSB_WIDEBAND_SPEECH }, 708 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 709 BTUSB_WIDEBAND_SPEECH }, 710 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 711 BTUSB_WIDEBAND_SPEECH }, 712 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 713 BTUSB_WIDEBAND_SPEECH }, 714 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 715 BTUSB_WIDEBAND_SPEECH }, 716 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 717 BTUSB_WIDEBAND_SPEECH }, 718 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 719 BTUSB_WIDEBAND_SPEECH }, 720 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 721 BTUSB_WIDEBAND_SPEECH }, 722 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 723 BTUSB_WIDEBAND_SPEECH }, 724 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 725 BTUSB_WIDEBAND_SPEECH }, 726 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 727 BTUSB_WIDEBAND_SPEECH }, 728 729 /* Actions Semiconductor ATS2851 based devices */ 730 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 731 732 /* Silicon Wave based devices */ 733 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 734 735 { } /* Terminating entry */ 736 }; 737 738 /* The Bluetooth USB module build into some devices needs to be reset on resume, 739 * this is a problem with the platform (likely shutting off all power) not with 740 * the module itself. So we use a DMI list to match known broken platforms. 741 */ 742 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 743 { 744 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 745 .matches = { 746 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 747 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 748 }, 749 }, 750 { 751 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 752 .matches = { 753 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 754 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 755 }, 756 }, 757 { 758 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 759 .matches = { 760 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 761 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 762 }, 763 }, 764 {} 765 }; 766 767 struct qca_dump_info { 768 /* fields for dump collection */ 769 u16 id_vendor; 770 u16 id_product; 771 u32 fw_version; 772 u32 controller_id; 773 u32 ram_dump_size; 774 u16 ram_dump_seqno; 775 }; 776 777 #define BTUSB_MAX_ISOC_FRAMES 10 778 779 #define BTUSB_INTR_RUNNING 0 780 #define BTUSB_BULK_RUNNING 1 781 #define BTUSB_ISOC_RUNNING 2 782 #define BTUSB_SUSPENDING 3 783 #define BTUSB_DID_ISO_RESUME 4 784 #define BTUSB_BOOTLOADER 5 785 #define BTUSB_DOWNLOADING 6 786 #define BTUSB_FIRMWARE_LOADED 7 787 #define BTUSB_FIRMWARE_FAILED 8 788 #define BTUSB_BOOTING 9 789 #define BTUSB_DIAG_RUNNING 10 790 #define BTUSB_OOB_WAKE_ENABLED 11 791 #define BTUSB_HW_RESET_ACTIVE 12 792 #define BTUSB_TX_WAIT_VND_EVT 13 793 #define BTUSB_WAKEUP_AUTOSUSPEND 14 794 #define BTUSB_USE_ALT3_FOR_WBS 15 795 #define BTUSB_ALT6_CONTINUOUS_TX 16 796 #define BTUSB_HW_SSR_ACTIVE 17 797 798 struct btusb_data { 799 struct hci_dev *hdev; 800 struct usb_device *udev; 801 struct usb_interface *intf; 802 struct usb_interface *isoc; 803 struct usb_interface *diag; 804 unsigned isoc_ifnum; 805 806 unsigned long flags; 807 808 bool poll_sync; 809 int intr_interval; 810 struct work_struct work; 811 struct work_struct waker; 812 struct delayed_work rx_work; 813 814 struct sk_buff_head acl_q; 815 816 struct usb_anchor deferred; 817 struct usb_anchor tx_anchor; 818 int tx_in_flight; 819 spinlock_t txlock; 820 821 struct usb_anchor intr_anchor; 822 struct usb_anchor bulk_anchor; 823 struct usb_anchor isoc_anchor; 824 struct usb_anchor diag_anchor; 825 struct usb_anchor ctrl_anchor; 826 spinlock_t rxlock; 827 828 struct sk_buff *evt_skb; 829 struct sk_buff *acl_skb; 830 struct sk_buff *sco_skb; 831 832 struct usb_endpoint_descriptor *intr_ep; 833 struct usb_endpoint_descriptor *bulk_tx_ep; 834 struct usb_endpoint_descriptor *bulk_rx_ep; 835 struct usb_endpoint_descriptor *isoc_tx_ep; 836 struct usb_endpoint_descriptor *isoc_rx_ep; 837 struct usb_endpoint_descriptor *diag_tx_ep; 838 struct usb_endpoint_descriptor *diag_rx_ep; 839 840 struct gpio_desc *reset_gpio; 841 842 __u8 cmdreq_type; 843 __u8 cmdreq; 844 845 unsigned int sco_num; 846 unsigned int air_mode; 847 bool usb_alt6_packet_flow; 848 int isoc_altsetting; 849 int suspend_count; 850 851 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 852 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 853 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 854 855 int (*setup_on_usb)(struct hci_dev *hdev); 856 857 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 858 unsigned cmd_timeout_cnt; 859 860 struct qca_dump_info qca_dump; 861 }; 862 863 static void btusb_reset(struct hci_dev *hdev) 864 { 865 struct btusb_data *data; 866 int err; 867 868 if (hdev->reset) { 869 hdev->reset(hdev); 870 return; 871 } 872 873 data = hci_get_drvdata(hdev); 874 /* This is not an unbalanced PM reference since the device will reset */ 875 err = usb_autopm_get_interface(data->intf); 876 if (err) { 877 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 878 return; 879 } 880 881 bt_dev_err(hdev, "Resetting usb device."); 882 usb_queue_reset_device(data->intf); 883 } 884 885 static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 886 { 887 struct btusb_data *data = hci_get_drvdata(hdev); 888 struct gpio_desc *reset_gpio = data->reset_gpio; 889 struct btintel_data *intel_data = hci_get_priv(hdev); 890 891 if (++data->cmd_timeout_cnt < 5) 892 return; 893 894 if (intel_data->acpi_reset_method) { 895 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 896 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 897 return; 898 } 899 900 bt_dev_err(hdev, "Initiating acpi reset method"); 901 /* If ACPI reset method fails, lets try with legacy GPIO 902 * toggling 903 */ 904 if (!intel_data->acpi_reset_method(hdev)) { 905 return; 906 } 907 } 908 909 if (!reset_gpio) { 910 btusb_reset(hdev); 911 return; 912 } 913 914 /* 915 * Toggle the hard reset line if the platform provides one. The reset 916 * is going to yank the device off the USB and then replug. So doing 917 * once is enough. The cleanup is handled correctly on the way out 918 * (standard USB disconnect), and the new device is detected cleanly 919 * and bound to the driver again like it should be. 920 */ 921 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 922 bt_dev_err(hdev, "last reset failed? Not resetting again"); 923 return; 924 } 925 926 bt_dev_err(hdev, "Initiating HW reset via gpio"); 927 gpiod_set_value_cansleep(reset_gpio, 1); 928 msleep(100); 929 gpiod_set_value_cansleep(reset_gpio, 0); 930 } 931 932 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 933 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 934 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 935 936 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 937 938 struct rtk_dev_coredump_hdr { 939 u8 type; 940 u8 code; 941 u8 reserved[2]; 942 } __packed; 943 944 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 945 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 946 { 947 struct sk_buff *skb; 948 949 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 950 if (!skb) 951 return; 952 953 skb_put_data(skb, hdr, sizeof(*hdr)); 954 if (len) 955 skb_put_data(skb, buf, len); 956 957 if (!hci_devcd_init(hdev, skb->len)) { 958 hci_devcd_append(hdev, skb); 959 hci_devcd_complete(hdev); 960 } else { 961 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 962 kfree_skb(skb); 963 } 964 } 965 966 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) 967 { 968 struct btusb_data *data = hci_get_drvdata(hdev); 969 struct gpio_desc *reset_gpio = data->reset_gpio; 970 struct rtk_dev_coredump_hdr hdr = { 971 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 972 }; 973 974 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 975 976 if (++data->cmd_timeout_cnt < 5) 977 return; 978 979 if (!reset_gpio) { 980 btusb_reset(hdev); 981 return; 982 } 983 984 /* Toggle the hard reset line. The Realtek device is going to 985 * yank itself off the USB and then replug. The cleanup is handled 986 * correctly on the way out (standard USB disconnect), and the new 987 * device is detected cleanly and bound to the driver again like 988 * it should be. 989 */ 990 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 991 bt_dev_err(hdev, "last reset failed? Not resetting again"); 992 return; 993 } 994 995 bt_dev_err(hdev, "Reset Realtek device via gpio"); 996 gpiod_set_value_cansleep(reset_gpio, 1); 997 msleep(200); 998 gpiod_set_value_cansleep(reset_gpio, 0); 999 } 1000 1001 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1002 { 1003 struct rtk_dev_coredump_hdr hdr = { 1004 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1005 .code = code, 1006 }; 1007 1008 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1009 1010 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1011 } 1012 1013 static void btusb_qca_cmd_timeout(struct hci_dev *hdev) 1014 { 1015 struct btusb_data *data = hci_get_drvdata(hdev); 1016 struct gpio_desc *reset_gpio = data->reset_gpio; 1017 1018 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1019 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout"); 1020 return; 1021 } 1022 1023 if (++data->cmd_timeout_cnt < 5) 1024 return; 1025 1026 if (reset_gpio) { 1027 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1028 1029 /* Toggle the hard reset line. The qca bt device is going to 1030 * yank itself off the USB and then replug. The cleanup is handled 1031 * correctly on the way out (standard USB disconnect), and the new 1032 * device is detected cleanly and bound to the driver again like 1033 * it should be. 1034 */ 1035 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1036 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1037 return; 1038 } 1039 1040 gpiod_set_value_cansleep(reset_gpio, 0); 1041 msleep(200); 1042 gpiod_set_value_cansleep(reset_gpio, 1); 1043 1044 return; 1045 } 1046 1047 btusb_reset(hdev); 1048 } 1049 1050 static inline void btusb_free_frags(struct btusb_data *data) 1051 { 1052 unsigned long flags; 1053 1054 spin_lock_irqsave(&data->rxlock, flags); 1055 1056 dev_kfree_skb_irq(data->evt_skb); 1057 data->evt_skb = NULL; 1058 1059 dev_kfree_skb_irq(data->acl_skb); 1060 data->acl_skb = NULL; 1061 1062 dev_kfree_skb_irq(data->sco_skb); 1063 data->sco_skb = NULL; 1064 1065 spin_unlock_irqrestore(&data->rxlock, flags); 1066 } 1067 1068 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 1069 { 1070 if (data->intr_interval) { 1071 /* Trigger dequeue immediatelly if an event is received */ 1072 schedule_delayed_work(&data->rx_work, 0); 1073 } 1074 1075 return data->recv_event(data->hdev, skb); 1076 } 1077 1078 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1079 { 1080 struct sk_buff *skb; 1081 unsigned long flags; 1082 int err = 0; 1083 1084 spin_lock_irqsave(&data->rxlock, flags); 1085 skb = data->evt_skb; 1086 1087 while (count) { 1088 int len; 1089 1090 if (!skb) { 1091 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1092 if (!skb) { 1093 err = -ENOMEM; 1094 break; 1095 } 1096 1097 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1098 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1099 } 1100 1101 len = min_t(uint, hci_skb_expect(skb), count); 1102 skb_put_data(skb, buffer, len); 1103 1104 count -= len; 1105 buffer += len; 1106 hci_skb_expect(skb) -= len; 1107 1108 if (skb->len == HCI_EVENT_HDR_SIZE) { 1109 /* Complete event header */ 1110 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1111 1112 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1113 kfree_skb(skb); 1114 skb = NULL; 1115 1116 err = -EILSEQ; 1117 break; 1118 } 1119 } 1120 1121 if (!hci_skb_expect(skb)) { 1122 /* Complete frame */ 1123 btusb_recv_event(data, skb); 1124 skb = NULL; 1125 } 1126 } 1127 1128 data->evt_skb = skb; 1129 spin_unlock_irqrestore(&data->rxlock, flags); 1130 1131 return err; 1132 } 1133 1134 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1135 { 1136 /* Only queue ACL packet if intr_interval is set as it means 1137 * force_poll_sync has been enabled. 1138 */ 1139 if (!data->intr_interval) 1140 return data->recv_acl(data->hdev, skb); 1141 1142 skb_queue_tail(&data->acl_q, skb); 1143 schedule_delayed_work(&data->rx_work, data->intr_interval); 1144 1145 return 0; 1146 } 1147 1148 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1149 { 1150 struct sk_buff *skb; 1151 unsigned long flags; 1152 int err = 0; 1153 1154 spin_lock_irqsave(&data->rxlock, flags); 1155 skb = data->acl_skb; 1156 1157 while (count) { 1158 int len; 1159 1160 if (!skb) { 1161 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1162 if (!skb) { 1163 err = -ENOMEM; 1164 break; 1165 } 1166 1167 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1168 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1169 } 1170 1171 len = min_t(uint, hci_skb_expect(skb), count); 1172 skb_put_data(skb, buffer, len); 1173 1174 count -= len; 1175 buffer += len; 1176 hci_skb_expect(skb) -= len; 1177 1178 if (skb->len == HCI_ACL_HDR_SIZE) { 1179 __le16 dlen = hci_acl_hdr(skb)->dlen; 1180 1181 /* Complete ACL header */ 1182 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1183 1184 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1185 kfree_skb(skb); 1186 skb = NULL; 1187 1188 err = -EILSEQ; 1189 break; 1190 } 1191 } 1192 1193 if (!hci_skb_expect(skb)) { 1194 /* Complete frame */ 1195 btusb_recv_acl(data, skb); 1196 skb = NULL; 1197 } 1198 } 1199 1200 data->acl_skb = skb; 1201 spin_unlock_irqrestore(&data->rxlock, flags); 1202 1203 return err; 1204 } 1205 1206 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1207 struct hci_sco_hdr *hdr) 1208 { 1209 __u16 handle; 1210 1211 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1212 // Can't validate, userspace controls everything. 1213 return true; 1214 1215 /* 1216 * USB isochronous transfers are not designed to be reliable and may 1217 * lose fragments. When this happens, the next first fragment 1218 * encountered might actually be a continuation fragment. 1219 * Validate the handle to detect it and drop it, or else the upper 1220 * layer will get garbage for a while. 1221 */ 1222 1223 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1224 1225 switch (hci_conn_lookup_type(hdev, handle)) { 1226 case SCO_LINK: 1227 case ESCO_LINK: 1228 return true; 1229 default: 1230 return false; 1231 } 1232 } 1233 1234 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1235 { 1236 struct sk_buff *skb; 1237 unsigned long flags; 1238 int err = 0; 1239 1240 spin_lock_irqsave(&data->rxlock, flags); 1241 skb = data->sco_skb; 1242 1243 while (count) { 1244 int len; 1245 1246 if (!skb) { 1247 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1248 if (!skb) { 1249 err = -ENOMEM; 1250 break; 1251 } 1252 1253 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1254 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1255 } 1256 1257 len = min_t(uint, hci_skb_expect(skb), count); 1258 skb_put_data(skb, buffer, len); 1259 1260 count -= len; 1261 buffer += len; 1262 hci_skb_expect(skb) -= len; 1263 1264 if (skb->len == HCI_SCO_HDR_SIZE) { 1265 /* Complete SCO header */ 1266 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1267 1268 hci_skb_expect(skb) = hdr->dlen; 1269 1270 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1271 !btusb_validate_sco_handle(data->hdev, hdr)) { 1272 kfree_skb(skb); 1273 skb = NULL; 1274 1275 err = -EILSEQ; 1276 break; 1277 } 1278 } 1279 1280 if (!hci_skb_expect(skb)) { 1281 /* Complete frame */ 1282 hci_recv_frame(data->hdev, skb); 1283 skb = NULL; 1284 } 1285 } 1286 1287 data->sco_skb = skb; 1288 spin_unlock_irqrestore(&data->rxlock, flags); 1289 1290 return err; 1291 } 1292 1293 static void btusb_intr_complete(struct urb *urb) 1294 { 1295 struct hci_dev *hdev = urb->context; 1296 struct btusb_data *data = hci_get_drvdata(hdev); 1297 int err; 1298 1299 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1300 urb->actual_length); 1301 1302 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1303 return; 1304 1305 if (urb->status == 0) { 1306 hdev->stat.byte_rx += urb->actual_length; 1307 1308 if (btusb_recv_intr(data, urb->transfer_buffer, 1309 urb->actual_length) < 0) { 1310 bt_dev_err(hdev, "corrupted event packet"); 1311 hdev->stat.err_rx++; 1312 } 1313 } else if (urb->status == -ENOENT) { 1314 /* Avoid suspend failed when usb_kill_urb */ 1315 return; 1316 } 1317 1318 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1319 return; 1320 1321 usb_mark_last_busy(data->udev); 1322 usb_anchor_urb(urb, &data->intr_anchor); 1323 1324 err = usb_submit_urb(urb, GFP_ATOMIC); 1325 if (err < 0) { 1326 /* -EPERM: urb is being killed; 1327 * -ENODEV: device got disconnected 1328 */ 1329 if (err != -EPERM && err != -ENODEV) 1330 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1331 urb, -err); 1332 if (err != -EPERM) 1333 hci_cmd_sync_cancel(hdev, -err); 1334 usb_unanchor_urb(urb); 1335 } 1336 } 1337 1338 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1339 { 1340 struct btusb_data *data = hci_get_drvdata(hdev); 1341 struct urb *urb; 1342 unsigned char *buf; 1343 unsigned int pipe; 1344 int err, size; 1345 1346 BT_DBG("%s", hdev->name); 1347 1348 if (!data->intr_ep) 1349 return -ENODEV; 1350 1351 urb = usb_alloc_urb(0, mem_flags); 1352 if (!urb) 1353 return -ENOMEM; 1354 1355 /* Use maximum HCI Event size so the USB stack handles 1356 * ZPL/short-transfer automatically. 1357 */ 1358 size = HCI_MAX_EVENT_SIZE; 1359 1360 buf = kmalloc(size, mem_flags); 1361 if (!buf) { 1362 usb_free_urb(urb); 1363 return -ENOMEM; 1364 } 1365 1366 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1367 1368 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1369 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1370 1371 urb->transfer_flags |= URB_FREE_BUFFER; 1372 1373 usb_anchor_urb(urb, &data->intr_anchor); 1374 1375 err = usb_submit_urb(urb, mem_flags); 1376 if (err < 0) { 1377 if (err != -EPERM && err != -ENODEV) 1378 bt_dev_err(hdev, "urb %p submission failed (%d)", 1379 urb, -err); 1380 if (err != -EPERM) 1381 hci_cmd_sync_cancel(hdev, -err); 1382 usb_unanchor_urb(urb); 1383 } 1384 1385 /* Only initialize intr_interval if URB poll sync is enabled */ 1386 if (!data->poll_sync) 1387 goto done; 1388 1389 /* The units are frames (milliseconds) for full and low speed devices, 1390 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1391 * devices. 1392 * 1393 * This is done once on open/resume so it shouldn't change even if 1394 * force_poll_sync changes. 1395 */ 1396 switch (urb->dev->speed) { 1397 case USB_SPEED_SUPER_PLUS: 1398 case USB_SPEED_SUPER: /* units are 125us */ 1399 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1400 break; 1401 default: 1402 data->intr_interval = msecs_to_jiffies(urb->interval); 1403 break; 1404 } 1405 1406 done: 1407 usb_free_urb(urb); 1408 1409 return err; 1410 } 1411 1412 static void btusb_bulk_complete(struct urb *urb) 1413 { 1414 struct hci_dev *hdev = urb->context; 1415 struct btusb_data *data = hci_get_drvdata(hdev); 1416 int err; 1417 1418 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1419 urb->actual_length); 1420 1421 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1422 return; 1423 1424 if (urb->status == 0) { 1425 hdev->stat.byte_rx += urb->actual_length; 1426 1427 if (data->recv_bulk(data, urb->transfer_buffer, 1428 urb->actual_length) < 0) { 1429 bt_dev_err(hdev, "corrupted ACL packet"); 1430 hdev->stat.err_rx++; 1431 } 1432 } else if (urb->status == -ENOENT) { 1433 /* Avoid suspend failed when usb_kill_urb */ 1434 return; 1435 } 1436 1437 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1438 return; 1439 1440 usb_anchor_urb(urb, &data->bulk_anchor); 1441 usb_mark_last_busy(data->udev); 1442 1443 err = usb_submit_urb(urb, GFP_ATOMIC); 1444 if (err < 0) { 1445 /* -EPERM: urb is being killed; 1446 * -ENODEV: device got disconnected 1447 */ 1448 if (err != -EPERM && err != -ENODEV) 1449 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1450 urb, -err); 1451 usb_unanchor_urb(urb); 1452 } 1453 } 1454 1455 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1456 { 1457 struct btusb_data *data = hci_get_drvdata(hdev); 1458 struct urb *urb; 1459 unsigned char *buf; 1460 unsigned int pipe; 1461 int err, size = HCI_MAX_FRAME_SIZE; 1462 1463 BT_DBG("%s", hdev->name); 1464 1465 if (!data->bulk_rx_ep) 1466 return -ENODEV; 1467 1468 urb = usb_alloc_urb(0, mem_flags); 1469 if (!urb) 1470 return -ENOMEM; 1471 1472 buf = kmalloc(size, mem_flags); 1473 if (!buf) { 1474 usb_free_urb(urb); 1475 return -ENOMEM; 1476 } 1477 1478 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1479 1480 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1481 btusb_bulk_complete, hdev); 1482 1483 urb->transfer_flags |= URB_FREE_BUFFER; 1484 1485 usb_mark_last_busy(data->udev); 1486 usb_anchor_urb(urb, &data->bulk_anchor); 1487 1488 err = usb_submit_urb(urb, mem_flags); 1489 if (err < 0) { 1490 if (err != -EPERM && err != -ENODEV) 1491 bt_dev_err(hdev, "urb %p submission failed (%d)", 1492 urb, -err); 1493 usb_unanchor_urb(urb); 1494 } 1495 1496 usb_free_urb(urb); 1497 1498 return err; 1499 } 1500 1501 static void btusb_isoc_complete(struct urb *urb) 1502 { 1503 struct hci_dev *hdev = urb->context; 1504 struct btusb_data *data = hci_get_drvdata(hdev); 1505 int i, err; 1506 1507 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1508 urb->actual_length); 1509 1510 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1511 return; 1512 1513 if (urb->status == 0) { 1514 for (i = 0; i < urb->number_of_packets; i++) { 1515 unsigned int offset = urb->iso_frame_desc[i].offset; 1516 unsigned int length = urb->iso_frame_desc[i].actual_length; 1517 1518 if (urb->iso_frame_desc[i].status) 1519 continue; 1520 1521 hdev->stat.byte_rx += length; 1522 1523 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1524 length) < 0) { 1525 bt_dev_err(hdev, "corrupted SCO packet"); 1526 hdev->stat.err_rx++; 1527 } 1528 } 1529 } else if (urb->status == -ENOENT) { 1530 /* Avoid suspend failed when usb_kill_urb */ 1531 return; 1532 } 1533 1534 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1535 return; 1536 1537 usb_anchor_urb(urb, &data->isoc_anchor); 1538 1539 err = usb_submit_urb(urb, GFP_ATOMIC); 1540 if (err < 0) { 1541 /* -EPERM: urb is being killed; 1542 * -ENODEV: device got disconnected 1543 */ 1544 if (err != -EPERM && err != -ENODEV) 1545 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1546 urb, -err); 1547 usb_unanchor_urb(urb); 1548 } 1549 } 1550 1551 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1552 int mtu, struct btusb_data *data) 1553 { 1554 int i = 0, offset = 0; 1555 unsigned int interval; 1556 1557 BT_DBG("len %d mtu %d", len, mtu); 1558 1559 /* For mSBC ALT 6 settings some chips need to transmit the data 1560 * continuously without the zero length of USB packets. 1561 */ 1562 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1563 goto ignore_usb_alt6_packet_flow; 1564 1565 /* For mSBC ALT 6 setting the host will send the packet at continuous 1566 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1567 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1568 * To maintain the rate we send 63bytes of usb packets alternatively for 1569 * 7ms and 8ms to maintain the rate as 7.5ms. 1570 */ 1571 if (data->usb_alt6_packet_flow) { 1572 interval = 7; 1573 data->usb_alt6_packet_flow = false; 1574 } else { 1575 interval = 6; 1576 data->usb_alt6_packet_flow = true; 1577 } 1578 1579 for (i = 0; i < interval; i++) { 1580 urb->iso_frame_desc[i].offset = offset; 1581 urb->iso_frame_desc[i].length = offset; 1582 } 1583 1584 ignore_usb_alt6_packet_flow: 1585 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1586 urb->iso_frame_desc[i].offset = offset; 1587 urb->iso_frame_desc[i].length = len; 1588 i++; 1589 } 1590 1591 urb->number_of_packets = i; 1592 } 1593 1594 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1595 { 1596 int i, offset = 0; 1597 1598 BT_DBG("len %d mtu %d", len, mtu); 1599 1600 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1601 i++, offset += mtu, len -= mtu) { 1602 urb->iso_frame_desc[i].offset = offset; 1603 urb->iso_frame_desc[i].length = mtu; 1604 } 1605 1606 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1607 urb->iso_frame_desc[i].offset = offset; 1608 urb->iso_frame_desc[i].length = len; 1609 i++; 1610 } 1611 1612 urb->number_of_packets = i; 1613 } 1614 1615 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1616 { 1617 struct btusb_data *data = hci_get_drvdata(hdev); 1618 struct urb *urb; 1619 unsigned char *buf; 1620 unsigned int pipe; 1621 int err, size; 1622 1623 BT_DBG("%s", hdev->name); 1624 1625 if (!data->isoc_rx_ep) 1626 return -ENODEV; 1627 1628 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1629 if (!urb) 1630 return -ENOMEM; 1631 1632 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1633 BTUSB_MAX_ISOC_FRAMES; 1634 1635 buf = kmalloc(size, mem_flags); 1636 if (!buf) { 1637 usb_free_urb(urb); 1638 return -ENOMEM; 1639 } 1640 1641 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1642 1643 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1644 hdev, data->isoc_rx_ep->bInterval); 1645 1646 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1647 1648 __fill_isoc_descriptor(urb, size, 1649 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1650 1651 usb_anchor_urb(urb, &data->isoc_anchor); 1652 1653 err = usb_submit_urb(urb, mem_flags); 1654 if (err < 0) { 1655 if (err != -EPERM && err != -ENODEV) 1656 bt_dev_err(hdev, "urb %p submission failed (%d)", 1657 urb, -err); 1658 usb_unanchor_urb(urb); 1659 } 1660 1661 usb_free_urb(urb); 1662 1663 return err; 1664 } 1665 1666 static void btusb_diag_complete(struct urb *urb) 1667 { 1668 struct hci_dev *hdev = urb->context; 1669 struct btusb_data *data = hci_get_drvdata(hdev); 1670 int err; 1671 1672 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1673 urb->actual_length); 1674 1675 if (urb->status == 0) { 1676 struct sk_buff *skb; 1677 1678 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1679 if (skb) { 1680 skb_put_data(skb, urb->transfer_buffer, 1681 urb->actual_length); 1682 hci_recv_diag(hdev, skb); 1683 } 1684 } else if (urb->status == -ENOENT) { 1685 /* Avoid suspend failed when usb_kill_urb */ 1686 return; 1687 } 1688 1689 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1690 return; 1691 1692 usb_anchor_urb(urb, &data->diag_anchor); 1693 usb_mark_last_busy(data->udev); 1694 1695 err = usb_submit_urb(urb, GFP_ATOMIC); 1696 if (err < 0) { 1697 /* -EPERM: urb is being killed; 1698 * -ENODEV: device got disconnected 1699 */ 1700 if (err != -EPERM && err != -ENODEV) 1701 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1702 urb, -err); 1703 usb_unanchor_urb(urb); 1704 } 1705 } 1706 1707 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1708 { 1709 struct btusb_data *data = hci_get_drvdata(hdev); 1710 struct urb *urb; 1711 unsigned char *buf; 1712 unsigned int pipe; 1713 int err, size = HCI_MAX_FRAME_SIZE; 1714 1715 BT_DBG("%s", hdev->name); 1716 1717 if (!data->diag_rx_ep) 1718 return -ENODEV; 1719 1720 urb = usb_alloc_urb(0, mem_flags); 1721 if (!urb) 1722 return -ENOMEM; 1723 1724 buf = kmalloc(size, mem_flags); 1725 if (!buf) { 1726 usb_free_urb(urb); 1727 return -ENOMEM; 1728 } 1729 1730 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1731 1732 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1733 btusb_diag_complete, hdev); 1734 1735 urb->transfer_flags |= URB_FREE_BUFFER; 1736 1737 usb_mark_last_busy(data->udev); 1738 usb_anchor_urb(urb, &data->diag_anchor); 1739 1740 err = usb_submit_urb(urb, mem_flags); 1741 if (err < 0) { 1742 if (err != -EPERM && err != -ENODEV) 1743 bt_dev_err(hdev, "urb %p submission failed (%d)", 1744 urb, -err); 1745 usb_unanchor_urb(urb); 1746 } 1747 1748 usb_free_urb(urb); 1749 1750 return err; 1751 } 1752 1753 static void btusb_tx_complete(struct urb *urb) 1754 { 1755 struct sk_buff *skb = urb->context; 1756 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1757 struct btusb_data *data = hci_get_drvdata(hdev); 1758 unsigned long flags; 1759 1760 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1761 urb->actual_length); 1762 1763 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1764 goto done; 1765 1766 if (!urb->status) { 1767 hdev->stat.byte_tx += urb->transfer_buffer_length; 1768 } else { 1769 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1770 hci_cmd_sync_cancel(hdev, -urb->status); 1771 hdev->stat.err_tx++; 1772 } 1773 1774 done: 1775 spin_lock_irqsave(&data->txlock, flags); 1776 data->tx_in_flight--; 1777 spin_unlock_irqrestore(&data->txlock, flags); 1778 1779 kfree(urb->setup_packet); 1780 1781 kfree_skb(skb); 1782 } 1783 1784 static void btusb_isoc_tx_complete(struct urb *urb) 1785 { 1786 struct sk_buff *skb = urb->context; 1787 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1788 1789 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1790 urb->actual_length); 1791 1792 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1793 goto done; 1794 1795 if (!urb->status) 1796 hdev->stat.byte_tx += urb->transfer_buffer_length; 1797 else 1798 hdev->stat.err_tx++; 1799 1800 done: 1801 kfree(urb->setup_packet); 1802 1803 kfree_skb(skb); 1804 } 1805 1806 static int btusb_open(struct hci_dev *hdev) 1807 { 1808 struct btusb_data *data = hci_get_drvdata(hdev); 1809 int err; 1810 1811 BT_DBG("%s", hdev->name); 1812 1813 err = usb_autopm_get_interface(data->intf); 1814 if (err < 0) 1815 return err; 1816 1817 /* Patching USB firmware files prior to starting any URBs of HCI path 1818 * It is more safe to use USB bulk channel for downloading USB patch 1819 */ 1820 if (data->setup_on_usb) { 1821 err = data->setup_on_usb(hdev); 1822 if (err < 0) 1823 goto setup_fail; 1824 } 1825 1826 data->intf->needs_remote_wakeup = 1; 1827 1828 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1829 goto done; 1830 1831 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1832 if (err < 0) 1833 goto failed; 1834 1835 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1836 if (err < 0) { 1837 usb_kill_anchored_urbs(&data->intr_anchor); 1838 goto failed; 1839 } 1840 1841 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1842 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1843 1844 if (data->diag) { 1845 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1846 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1847 } 1848 1849 done: 1850 usb_autopm_put_interface(data->intf); 1851 return 0; 1852 1853 failed: 1854 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1855 setup_fail: 1856 usb_autopm_put_interface(data->intf); 1857 return err; 1858 } 1859 1860 static void btusb_stop_traffic(struct btusb_data *data) 1861 { 1862 usb_kill_anchored_urbs(&data->intr_anchor); 1863 usb_kill_anchored_urbs(&data->bulk_anchor); 1864 usb_kill_anchored_urbs(&data->isoc_anchor); 1865 usb_kill_anchored_urbs(&data->diag_anchor); 1866 usb_kill_anchored_urbs(&data->ctrl_anchor); 1867 } 1868 1869 static int btusb_close(struct hci_dev *hdev) 1870 { 1871 struct btusb_data *data = hci_get_drvdata(hdev); 1872 int err; 1873 1874 BT_DBG("%s", hdev->name); 1875 1876 cancel_delayed_work(&data->rx_work); 1877 cancel_work_sync(&data->work); 1878 cancel_work_sync(&data->waker); 1879 1880 skb_queue_purge(&data->acl_q); 1881 1882 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1883 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1884 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1885 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1886 1887 btusb_stop_traffic(data); 1888 btusb_free_frags(data); 1889 1890 err = usb_autopm_get_interface(data->intf); 1891 if (err < 0) 1892 goto failed; 1893 1894 data->intf->needs_remote_wakeup = 0; 1895 1896 /* Enable remote wake up for auto-suspend */ 1897 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1898 data->intf->needs_remote_wakeup = 1; 1899 1900 usb_autopm_put_interface(data->intf); 1901 1902 failed: 1903 usb_scuttle_anchored_urbs(&data->deferred); 1904 return 0; 1905 } 1906 1907 static int btusb_flush(struct hci_dev *hdev) 1908 { 1909 struct btusb_data *data = hci_get_drvdata(hdev); 1910 1911 BT_DBG("%s", hdev->name); 1912 1913 cancel_delayed_work(&data->rx_work); 1914 1915 skb_queue_purge(&data->acl_q); 1916 1917 usb_kill_anchored_urbs(&data->tx_anchor); 1918 btusb_free_frags(data); 1919 1920 return 0; 1921 } 1922 1923 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1924 { 1925 struct btusb_data *data = hci_get_drvdata(hdev); 1926 struct usb_ctrlrequest *dr; 1927 struct urb *urb; 1928 unsigned int pipe; 1929 1930 urb = usb_alloc_urb(0, GFP_KERNEL); 1931 if (!urb) 1932 return ERR_PTR(-ENOMEM); 1933 1934 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1935 if (!dr) { 1936 usb_free_urb(urb); 1937 return ERR_PTR(-ENOMEM); 1938 } 1939 1940 dr->bRequestType = data->cmdreq_type; 1941 dr->bRequest = data->cmdreq; 1942 dr->wIndex = 0; 1943 dr->wValue = 0; 1944 dr->wLength = __cpu_to_le16(skb->len); 1945 1946 pipe = usb_sndctrlpipe(data->udev, 0x00); 1947 1948 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1949 skb->data, skb->len, btusb_tx_complete, skb); 1950 1951 skb->dev = (void *)hdev; 1952 1953 return urb; 1954 } 1955 1956 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1957 { 1958 struct btusb_data *data = hci_get_drvdata(hdev); 1959 struct urb *urb; 1960 unsigned int pipe; 1961 1962 if (!data->bulk_tx_ep) 1963 return ERR_PTR(-ENODEV); 1964 1965 urb = usb_alloc_urb(0, GFP_KERNEL); 1966 if (!urb) 1967 return ERR_PTR(-ENOMEM); 1968 1969 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1970 1971 usb_fill_bulk_urb(urb, data->udev, pipe, 1972 skb->data, skb->len, btusb_tx_complete, skb); 1973 1974 skb->dev = (void *)hdev; 1975 1976 return urb; 1977 } 1978 1979 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1980 { 1981 struct btusb_data *data = hci_get_drvdata(hdev); 1982 struct urb *urb; 1983 unsigned int pipe; 1984 1985 if (!data->isoc_tx_ep) 1986 return ERR_PTR(-ENODEV); 1987 1988 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1989 if (!urb) 1990 return ERR_PTR(-ENOMEM); 1991 1992 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1993 1994 usb_fill_int_urb(urb, data->udev, pipe, 1995 skb->data, skb->len, btusb_isoc_tx_complete, 1996 skb, data->isoc_tx_ep->bInterval); 1997 1998 urb->transfer_flags = URB_ISO_ASAP; 1999 2000 if (data->isoc_altsetting == 6) 2001 __fill_isoc_descriptor_msbc(urb, skb->len, 2002 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2003 data); 2004 else 2005 __fill_isoc_descriptor(urb, skb->len, 2006 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2007 skb->dev = (void *)hdev; 2008 2009 return urb; 2010 } 2011 2012 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2013 { 2014 struct btusb_data *data = hci_get_drvdata(hdev); 2015 int err; 2016 2017 usb_anchor_urb(urb, &data->tx_anchor); 2018 2019 err = usb_submit_urb(urb, GFP_KERNEL); 2020 if (err < 0) { 2021 if (err != -EPERM && err != -ENODEV) 2022 bt_dev_err(hdev, "urb %p submission failed (%d)", 2023 urb, -err); 2024 kfree(urb->setup_packet); 2025 usb_unanchor_urb(urb); 2026 } else { 2027 usb_mark_last_busy(data->udev); 2028 } 2029 2030 usb_free_urb(urb); 2031 return err; 2032 } 2033 2034 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2035 { 2036 struct btusb_data *data = hci_get_drvdata(hdev); 2037 unsigned long flags; 2038 bool suspending; 2039 2040 spin_lock_irqsave(&data->txlock, flags); 2041 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2042 if (!suspending) 2043 data->tx_in_flight++; 2044 spin_unlock_irqrestore(&data->txlock, flags); 2045 2046 if (!suspending) 2047 return submit_tx_urb(hdev, urb); 2048 2049 usb_anchor_urb(urb, &data->deferred); 2050 schedule_work(&data->waker); 2051 2052 usb_free_urb(urb); 2053 return 0; 2054 } 2055 2056 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2057 { 2058 struct urb *urb; 2059 2060 BT_DBG("%s", hdev->name); 2061 2062 switch (hci_skb_pkt_type(skb)) { 2063 case HCI_COMMAND_PKT: 2064 urb = alloc_ctrl_urb(hdev, skb); 2065 if (IS_ERR(urb)) 2066 return PTR_ERR(urb); 2067 2068 hdev->stat.cmd_tx++; 2069 return submit_or_queue_tx_urb(hdev, urb); 2070 2071 case HCI_ACLDATA_PKT: 2072 urb = alloc_bulk_urb(hdev, skb); 2073 if (IS_ERR(urb)) 2074 return PTR_ERR(urb); 2075 2076 hdev->stat.acl_tx++; 2077 return submit_or_queue_tx_urb(hdev, urb); 2078 2079 case HCI_SCODATA_PKT: 2080 if (hci_conn_num(hdev, SCO_LINK) < 1) 2081 return -ENODEV; 2082 2083 urb = alloc_isoc_urb(hdev, skb); 2084 if (IS_ERR(urb)) 2085 return PTR_ERR(urb); 2086 2087 hdev->stat.sco_tx++; 2088 return submit_tx_urb(hdev, urb); 2089 2090 case HCI_ISODATA_PKT: 2091 urb = alloc_bulk_urb(hdev, skb); 2092 if (IS_ERR(urb)) 2093 return PTR_ERR(urb); 2094 2095 return submit_or_queue_tx_urb(hdev, urb); 2096 } 2097 2098 return -EILSEQ; 2099 } 2100 2101 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2102 { 2103 struct btusb_data *data = hci_get_drvdata(hdev); 2104 2105 BT_DBG("%s evt %d", hdev->name, evt); 2106 2107 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2108 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2109 data->air_mode = evt; 2110 schedule_work(&data->work); 2111 } 2112 } 2113 2114 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2115 { 2116 struct btusb_data *data = hci_get_drvdata(hdev); 2117 struct usb_interface *intf = data->isoc; 2118 struct usb_endpoint_descriptor *ep_desc; 2119 int i, err; 2120 2121 if (!data->isoc) 2122 return -ENODEV; 2123 2124 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2125 if (err < 0) { 2126 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2127 return err; 2128 } 2129 2130 data->isoc_altsetting = altsetting; 2131 2132 data->isoc_tx_ep = NULL; 2133 data->isoc_rx_ep = NULL; 2134 2135 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2136 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2137 2138 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2139 data->isoc_tx_ep = ep_desc; 2140 continue; 2141 } 2142 2143 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2144 data->isoc_rx_ep = ep_desc; 2145 continue; 2146 } 2147 } 2148 2149 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2150 bt_dev_err(hdev, "invalid SCO descriptors"); 2151 return -ENODEV; 2152 } 2153 2154 return 0; 2155 } 2156 2157 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2158 { 2159 struct btusb_data *data = hci_get_drvdata(hdev); 2160 int err; 2161 2162 if (data->isoc_altsetting != new_alts) { 2163 unsigned long flags; 2164 2165 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2166 usb_kill_anchored_urbs(&data->isoc_anchor); 2167 2168 /* When isochronous alternate setting needs to be 2169 * changed, because SCO connection has been added 2170 * or removed, a packet fragment may be left in the 2171 * reassembling state. This could lead to wrongly 2172 * assembled fragments. 2173 * 2174 * Clear outstanding fragment when selecting a new 2175 * alternate setting. 2176 */ 2177 spin_lock_irqsave(&data->rxlock, flags); 2178 dev_kfree_skb_irq(data->sco_skb); 2179 data->sco_skb = NULL; 2180 spin_unlock_irqrestore(&data->rxlock, flags); 2181 2182 err = __set_isoc_interface(hdev, new_alts); 2183 if (err < 0) 2184 return err; 2185 } 2186 2187 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2188 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2189 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2190 else 2191 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2192 } 2193 2194 return 0; 2195 } 2196 2197 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2198 int alt) 2199 { 2200 struct usb_interface *intf = data->isoc; 2201 int i; 2202 2203 BT_DBG("Looking for Alt no :%d", alt); 2204 2205 if (!intf) 2206 return NULL; 2207 2208 for (i = 0; i < intf->num_altsetting; i++) { 2209 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2210 return &intf->altsetting[i]; 2211 } 2212 2213 return NULL; 2214 } 2215 2216 static void btusb_work(struct work_struct *work) 2217 { 2218 struct btusb_data *data = container_of(work, struct btusb_data, work); 2219 struct hci_dev *hdev = data->hdev; 2220 int new_alts = 0; 2221 int err; 2222 2223 if (data->sco_num > 0) { 2224 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2225 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2226 if (err < 0) { 2227 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2228 usb_kill_anchored_urbs(&data->isoc_anchor); 2229 return; 2230 } 2231 2232 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2233 } 2234 2235 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2236 if (hdev->voice_setting & 0x0020) { 2237 static const int alts[3] = { 2, 4, 5 }; 2238 2239 new_alts = alts[data->sco_num - 1]; 2240 } else { 2241 new_alts = data->sco_num; 2242 } 2243 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2244 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2245 * many adapters do not support it. Alt 1 appears to 2246 * work for all adapters that do not have alt 6, and 2247 * which work with WBS at all. Some devices prefer 2248 * alt 3 (HCI payload >= 60 Bytes let air packet 2249 * data satisfy 60 bytes), requiring 2250 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2251 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2252 */ 2253 if (btusb_find_altsetting(data, 6)) 2254 new_alts = 6; 2255 else if (btusb_find_altsetting(data, 3) && 2256 hdev->sco_mtu >= 72 && 2257 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2258 new_alts = 3; 2259 else 2260 new_alts = 1; 2261 } 2262 2263 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2264 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2265 } else { 2266 usb_kill_anchored_urbs(&data->isoc_anchor); 2267 2268 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2269 __set_isoc_interface(hdev, 0); 2270 2271 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2272 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2273 } 2274 } 2275 2276 static void btusb_waker(struct work_struct *work) 2277 { 2278 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2279 int err; 2280 2281 err = usb_autopm_get_interface(data->intf); 2282 if (err < 0) 2283 return; 2284 2285 usb_autopm_put_interface(data->intf); 2286 } 2287 2288 static void btusb_rx_work(struct work_struct *work) 2289 { 2290 struct btusb_data *data = container_of(work, struct btusb_data, 2291 rx_work.work); 2292 struct sk_buff *skb; 2293 2294 /* Dequeue ACL data received during the interval */ 2295 while ((skb = skb_dequeue(&data->acl_q))) 2296 data->recv_acl(data->hdev, skb); 2297 } 2298 2299 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2300 { 2301 struct sk_buff *skb; 2302 u8 val = 0x00; 2303 2304 BT_DBG("%s", hdev->name); 2305 2306 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2307 if (IS_ERR(skb)) 2308 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2309 else 2310 kfree_skb(skb); 2311 2312 return 0; 2313 } 2314 2315 static int btusb_setup_csr(struct hci_dev *hdev) 2316 { 2317 struct btusb_data *data = hci_get_drvdata(hdev); 2318 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2319 struct hci_rp_read_local_version *rp; 2320 struct sk_buff *skb; 2321 bool is_fake = false; 2322 int ret; 2323 2324 BT_DBG("%s", hdev->name); 2325 2326 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2327 HCI_INIT_TIMEOUT); 2328 if (IS_ERR(skb)) { 2329 int err = PTR_ERR(skb); 2330 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2331 return err; 2332 } 2333 2334 rp = skb_pull_data(skb, sizeof(*rp)); 2335 if (!rp) { 2336 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2337 kfree_skb(skb); 2338 return -EIO; 2339 } 2340 2341 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2342 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2343 2344 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2345 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2346 le16_to_cpu(rp->manufacturer)); 2347 2348 /* Detect a wide host of Chinese controllers that aren't CSR. 2349 * 2350 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2351 * 2352 * The main thing they have in common is that these are really popular low-cost 2353 * options that support newer Bluetooth versions but rely on heavy VID/PID 2354 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2355 * 2356 * We detect actual CSR devices by checking that the HCI manufacturer code 2357 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2358 * HCI rev values always match. As they both store the firmware number. 2359 */ 2360 if (le16_to_cpu(rp->manufacturer) != 10 || 2361 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2362 is_fake = true; 2363 2364 /* Known legit CSR firmware build numbers and their supported BT versions: 2365 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2366 * - 1.2 (0x2) -> 0x04d9, 0x0529 2367 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2368 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2369 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2370 * 2371 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2372 * support BT 1.1 only; so it's a dead giveaway when some 2373 * third-party BT 4.0 dongle reuses it. 2374 */ 2375 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2376 rp->hci_ver > BLUETOOTH_VER_1_1) 2377 is_fake = true; 2378 2379 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2380 rp->hci_ver > BLUETOOTH_VER_1_2) 2381 is_fake = true; 2382 2383 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2384 rp->hci_ver > BLUETOOTH_VER_2_0) 2385 is_fake = true; 2386 2387 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2388 rp->hci_ver > BLUETOOTH_VER_2_1) 2389 is_fake = true; 2390 2391 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2392 rp->hci_ver > BLUETOOTH_VER_4_0) 2393 is_fake = true; 2394 2395 /* Other clones which beat all the above checks */ 2396 else if (bcdDevice == 0x0134 && 2397 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2398 rp->hci_ver == BLUETOOTH_VER_2_0) 2399 is_fake = true; 2400 2401 if (is_fake) { 2402 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2403 2404 /* Generally these clones have big discrepancies between 2405 * advertised features and what's actually supported. 2406 * Probably will need to be expanded in the future; 2407 * without these the controller will lock up. 2408 */ 2409 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2410 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2411 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2412 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2413 2414 /* Clear the reset quirk since this is not an actual 2415 * early Bluetooth 1.1 device from CSR. 2416 */ 2417 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2418 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2419 2420 /* 2421 * Special workaround for these BT 4.0 chip clones, and potentially more: 2422 * 2423 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2424 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2425 * 2426 * These controllers are really messed-up. 2427 * 2428 * 1. Their bulk RX endpoint will never report any data unless 2429 * the device was suspended at least once (yes, really). 2430 * 2. They will not wakeup when autosuspended and receiving data 2431 * on their bulk RX endpoint from e.g. a keyboard or mouse 2432 * (IOW remote-wakeup support is broken for the bulk endpoint). 2433 * 2434 * To fix 1. enable runtime-suspend, force-suspend the 2435 * HCI and then wake-it up by disabling runtime-suspend. 2436 * 2437 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2438 * will still be autosuspended when it is not open. 2439 * 2440 * -- 2441 * 2442 * Because these are widespread problems we prefer generic solutions; so 2443 * apply this initialization quirk to every controller that gets here, 2444 * it should be harmless. The alternative is to not work at all. 2445 */ 2446 pm_runtime_allow(&data->udev->dev); 2447 2448 ret = pm_runtime_suspend(&data->udev->dev); 2449 if (ret >= 0) 2450 msleep(200); 2451 else 2452 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2453 2454 pm_runtime_forbid(&data->udev->dev); 2455 2456 device_set_wakeup_capable(&data->udev->dev, false); 2457 2458 /* Re-enable autosuspend if this was requested */ 2459 if (enable_autosuspend) 2460 usb_enable_autosuspend(data->udev); 2461 } 2462 2463 kfree_skb(skb); 2464 2465 return 0; 2466 } 2467 2468 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2469 { 2470 struct sk_buff *skb; 2471 struct hci_event_hdr *hdr; 2472 struct hci_ev_cmd_complete *evt; 2473 2474 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2475 if (!skb) 2476 return -ENOMEM; 2477 2478 hdr = skb_put(skb, sizeof(*hdr)); 2479 hdr->evt = HCI_EV_CMD_COMPLETE; 2480 hdr->plen = sizeof(*evt) + 1; 2481 2482 evt = skb_put(skb, sizeof(*evt)); 2483 evt->ncmd = 0x01; 2484 evt->opcode = cpu_to_le16(opcode); 2485 2486 skb_put_u8(skb, 0x00); 2487 2488 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2489 2490 return hci_recv_frame(hdev, skb); 2491 } 2492 2493 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2494 int count) 2495 { 2496 struct hci_dev *hdev = data->hdev; 2497 2498 /* When the device is in bootloader mode, then it can send 2499 * events via the bulk endpoint. These events are treated the 2500 * same way as the ones received from the interrupt endpoint. 2501 */ 2502 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2503 return btusb_recv_intr(data, buffer, count); 2504 2505 return btusb_recv_bulk(data, buffer, count); 2506 } 2507 2508 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2509 { 2510 struct urb *urb; 2511 2512 BT_DBG("%s", hdev->name); 2513 2514 switch (hci_skb_pkt_type(skb)) { 2515 case HCI_COMMAND_PKT: 2516 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2517 struct hci_command_hdr *cmd = (void *)skb->data; 2518 __u16 opcode = le16_to_cpu(cmd->opcode); 2519 2520 /* When in bootloader mode and the command 0xfc09 2521 * is received, it needs to be send down the 2522 * bulk endpoint. So allocate a bulk URB instead. 2523 */ 2524 if (opcode == 0xfc09) 2525 urb = alloc_bulk_urb(hdev, skb); 2526 else 2527 urb = alloc_ctrl_urb(hdev, skb); 2528 2529 /* When the 0xfc01 command is issued to boot into 2530 * the operational firmware, it will actually not 2531 * send a command complete event. To keep the flow 2532 * control working inject that event here. 2533 */ 2534 if (opcode == 0xfc01) 2535 inject_cmd_complete(hdev, opcode); 2536 } else { 2537 urb = alloc_ctrl_urb(hdev, skb); 2538 } 2539 if (IS_ERR(urb)) 2540 return PTR_ERR(urb); 2541 2542 hdev->stat.cmd_tx++; 2543 return submit_or_queue_tx_urb(hdev, urb); 2544 2545 case HCI_ACLDATA_PKT: 2546 urb = alloc_bulk_urb(hdev, skb); 2547 if (IS_ERR(urb)) 2548 return PTR_ERR(urb); 2549 2550 hdev->stat.acl_tx++; 2551 return submit_or_queue_tx_urb(hdev, urb); 2552 2553 case HCI_SCODATA_PKT: 2554 if (hci_conn_num(hdev, SCO_LINK) < 1) 2555 return -ENODEV; 2556 2557 urb = alloc_isoc_urb(hdev, skb); 2558 if (IS_ERR(urb)) 2559 return PTR_ERR(urb); 2560 2561 hdev->stat.sco_tx++; 2562 return submit_tx_urb(hdev, urb); 2563 2564 case HCI_ISODATA_PKT: 2565 urb = alloc_bulk_urb(hdev, skb); 2566 if (IS_ERR(urb)) 2567 return PTR_ERR(urb); 2568 2569 return submit_or_queue_tx_urb(hdev, urb); 2570 } 2571 2572 return -EILSEQ; 2573 } 2574 2575 static int btusb_setup_realtek(struct hci_dev *hdev) 2576 { 2577 struct btusb_data *data = hci_get_drvdata(hdev); 2578 int ret; 2579 2580 ret = btrtl_setup_realtek(hdev); 2581 2582 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2583 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2584 2585 return ret; 2586 } 2587 2588 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2589 { 2590 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2591 struct rtk_dev_coredump_hdr hdr = { 2592 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2593 }; 2594 2595 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2596 skb->len); 2597 2598 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2599 kfree_skb(skb); 2600 2601 return 0; 2602 } 2603 2604 return hci_recv_frame(hdev, skb); 2605 } 2606 2607 /* UHW CR mapping */ 2608 #define MTK_BT_MISC 0x70002510 2609 #define MTK_BT_SUBSYS_RST 0x70002610 2610 #define MTK_UDMA_INT_STA_BT 0x74000024 2611 #define MTK_UDMA_INT_STA_BT1 0x74000308 2612 #define MTK_BT_WDT_STATUS 0x740003A0 2613 #define MTK_EP_RST_OPT 0x74011890 2614 #define MTK_EP_RST_IN_OUT_OPT 0x00010001 2615 #define MTK_BT_RST_DONE 0x00000100 2616 #define MTK_BT_RESET_REG_CONNV3 0x70028610 2617 #define MTK_BT_READ_DEV_ID 0x70010200 2618 2619 2620 static void btusb_mtk_wmt_recv(struct urb *urb) 2621 { 2622 struct hci_dev *hdev = urb->context; 2623 struct btusb_data *data = hci_get_drvdata(hdev); 2624 struct sk_buff *skb; 2625 int err; 2626 2627 if (urb->status == 0 && urb->actual_length > 0) { 2628 hdev->stat.byte_rx += urb->actual_length; 2629 2630 /* WMT event shouldn't be fragmented and the size should be 2631 * less than HCI_WMT_MAX_EVENT_SIZE. 2632 */ 2633 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC); 2634 if (!skb) { 2635 hdev->stat.err_rx++; 2636 kfree(urb->setup_packet); 2637 return; 2638 } 2639 2640 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2641 skb_put_data(skb, urb->transfer_buffer, urb->actual_length); 2642 2643 /* When someone waits for the WMT event, the skb is being cloned 2644 * and being processed the events from there then. 2645 */ 2646 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) { 2647 data->evt_skb = skb_clone(skb, GFP_ATOMIC); 2648 if (!data->evt_skb) { 2649 kfree_skb(skb); 2650 kfree(urb->setup_packet); 2651 return; 2652 } 2653 } 2654 2655 err = hci_recv_frame(hdev, skb); 2656 if (err < 0) { 2657 kfree_skb(data->evt_skb); 2658 data->evt_skb = NULL; 2659 kfree(urb->setup_packet); 2660 return; 2661 } 2662 2663 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT, 2664 &data->flags)) { 2665 /* Barrier to sync with other CPUs */ 2666 smp_mb__after_atomic(); 2667 wake_up_bit(&data->flags, 2668 BTUSB_TX_WAIT_VND_EVT); 2669 } 2670 kfree(urb->setup_packet); 2671 return; 2672 } else if (urb->status == -ENOENT) { 2673 /* Avoid suspend failed when usb_kill_urb */ 2674 return; 2675 } 2676 2677 usb_mark_last_busy(data->udev); 2678 2679 /* The URB complete handler is still called with urb->actual_length = 0 2680 * when the event is not available, so we should keep re-submitting 2681 * URB until WMT event returns, Also, It's necessary to wait some time 2682 * between the two consecutive control URBs to relax the target device 2683 * to generate the event. Otherwise, the WMT event cannot return from 2684 * the device successfully. 2685 */ 2686 udelay(500); 2687 2688 usb_anchor_urb(urb, &data->ctrl_anchor); 2689 err = usb_submit_urb(urb, GFP_ATOMIC); 2690 if (err < 0) { 2691 kfree(urb->setup_packet); 2692 /* -EPERM: urb is being killed; 2693 * -ENODEV: device got disconnected 2694 */ 2695 if (err != -EPERM && err != -ENODEV) 2696 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2697 urb, -err); 2698 usb_unanchor_urb(urb); 2699 } 2700 } 2701 2702 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev) 2703 { 2704 struct btusb_data *data = hci_get_drvdata(hdev); 2705 struct usb_ctrlrequest *dr; 2706 unsigned char *buf; 2707 int err, size = 64; 2708 unsigned int pipe; 2709 struct urb *urb; 2710 2711 urb = usb_alloc_urb(0, GFP_KERNEL); 2712 if (!urb) 2713 return -ENOMEM; 2714 2715 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2716 if (!dr) { 2717 usb_free_urb(urb); 2718 return -ENOMEM; 2719 } 2720 2721 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN; 2722 dr->bRequest = 1; 2723 dr->wIndex = cpu_to_le16(0); 2724 dr->wValue = cpu_to_le16(48); 2725 dr->wLength = cpu_to_le16(size); 2726 2727 buf = kmalloc(size, GFP_KERNEL); 2728 if (!buf) { 2729 kfree(dr); 2730 usb_free_urb(urb); 2731 return -ENOMEM; 2732 } 2733 2734 pipe = usb_rcvctrlpipe(data->udev, 0); 2735 2736 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2737 buf, size, btusb_mtk_wmt_recv, hdev); 2738 2739 urb->transfer_flags |= URB_FREE_BUFFER; 2740 2741 usb_anchor_urb(urb, &data->ctrl_anchor); 2742 err = usb_submit_urb(urb, GFP_KERNEL); 2743 if (err < 0) { 2744 if (err != -EPERM && err != -ENODEV) 2745 bt_dev_err(hdev, "urb %p submission failed (%d)", 2746 urb, -err); 2747 usb_unanchor_urb(urb); 2748 } 2749 2750 usb_free_urb(urb); 2751 2752 return err; 2753 } 2754 2755 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev, 2756 struct btmtk_hci_wmt_params *wmt_params) 2757 { 2758 struct btusb_data *data = hci_get_drvdata(hdev); 2759 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc; 2760 u32 hlen, status = BTMTK_WMT_INVALID; 2761 struct btmtk_hci_wmt_evt *wmt_evt; 2762 struct btmtk_hci_wmt_cmd *wc; 2763 struct btmtk_wmt_hdr *hdr; 2764 int err; 2765 2766 /* Send the WMT command and wait until the WMT event returns */ 2767 hlen = sizeof(*hdr) + wmt_params->dlen; 2768 if (hlen > 255) 2769 return -EINVAL; 2770 2771 wc = kzalloc(hlen, GFP_KERNEL); 2772 if (!wc) 2773 return -ENOMEM; 2774 2775 hdr = &wc->hdr; 2776 hdr->dir = 1; 2777 hdr->op = wmt_params->op; 2778 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1); 2779 hdr->flag = wmt_params->flag; 2780 memcpy(wc->data, wmt_params->data, wmt_params->dlen); 2781 2782 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2783 2784 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling, 2785 * it needs constantly polling control pipe until the host received the 2786 * WMT event, thus, we should require to specifically acquire PM counter 2787 * on the USB to prevent the interface from entering auto suspended 2788 * while WMT cmd/event in progress. 2789 */ 2790 err = usb_autopm_get_interface(data->intf); 2791 if (err < 0) 2792 goto err_free_wc; 2793 2794 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc); 2795 2796 if (err < 0) { 2797 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2798 usb_autopm_put_interface(data->intf); 2799 goto err_free_wc; 2800 } 2801 2802 /* Submit control IN URB on demand to process the WMT event */ 2803 err = btusb_mtk_submit_wmt_recv_urb(hdev); 2804 2805 usb_autopm_put_interface(data->intf); 2806 2807 if (err < 0) 2808 goto err_free_wc; 2809 2810 /* The vendor specific WMT commands are all answered by a vendor 2811 * specific event and will have the Command Status or Command 2812 * Complete as with usual HCI command flow control. 2813 * 2814 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT 2815 * state to be cleared. The driver specific event receive routine 2816 * will clear that state and with that indicate completion of the 2817 * WMT command. 2818 */ 2819 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT, 2820 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT); 2821 if (err == -EINTR) { 2822 bt_dev_err(hdev, "Execution of wmt command interrupted"); 2823 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2824 goto err_free_wc; 2825 } 2826 2827 if (err) { 2828 bt_dev_err(hdev, "Execution of wmt command timed out"); 2829 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2830 err = -ETIMEDOUT; 2831 goto err_free_wc; 2832 } 2833 2834 if (data->evt_skb == NULL) 2835 goto err_free_wc; 2836 2837 /* Parse and handle the return WMT event */ 2838 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; 2839 if (wmt_evt->whdr.op != hdr->op) { 2840 bt_dev_err(hdev, "Wrong op received %d expected %d", 2841 wmt_evt->whdr.op, hdr->op); 2842 err = -EIO; 2843 goto err_free_skb; 2844 } 2845 2846 switch (wmt_evt->whdr.op) { 2847 case BTMTK_WMT_SEMAPHORE: 2848 if (wmt_evt->whdr.flag == 2) 2849 status = BTMTK_WMT_PATCH_UNDONE; 2850 else 2851 status = BTMTK_WMT_PATCH_DONE; 2852 break; 2853 case BTMTK_WMT_FUNC_CTRL: 2854 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; 2855 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) 2856 status = BTMTK_WMT_ON_DONE; 2857 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) 2858 status = BTMTK_WMT_ON_PROGRESS; 2859 else 2860 status = BTMTK_WMT_ON_UNDONE; 2861 break; 2862 case BTMTK_WMT_PATCH_DWNLD: 2863 if (wmt_evt->whdr.flag == 2) 2864 status = BTMTK_WMT_PATCH_DONE; 2865 else if (wmt_evt->whdr.flag == 1) 2866 status = BTMTK_WMT_PATCH_PROGRESS; 2867 else 2868 status = BTMTK_WMT_PATCH_UNDONE; 2869 break; 2870 } 2871 2872 if (wmt_params->status) 2873 *wmt_params->status = status; 2874 2875 err_free_skb: 2876 kfree_skb(data->evt_skb); 2877 data->evt_skb = NULL; 2878 err_free_wc: 2879 kfree(wc); 2880 return err; 2881 } 2882 2883 static int btusb_mtk_func_query(struct hci_dev *hdev) 2884 { 2885 struct btmtk_hci_wmt_params wmt_params; 2886 int status, err; 2887 u8 param = 0; 2888 2889 /* Query whether the function is enabled */ 2890 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2891 wmt_params.flag = 4; 2892 wmt_params.dlen = sizeof(param); 2893 wmt_params.data = ¶m; 2894 wmt_params.status = &status; 2895 2896 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2897 if (err < 0) { 2898 bt_dev_err(hdev, "Failed to query function status (%d)", err); 2899 return err; 2900 } 2901 2902 return status; 2903 } 2904 2905 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) 2906 { 2907 struct hci_dev *hdev = data->hdev; 2908 int pipe, err; 2909 void *buf; 2910 2911 buf = kzalloc(4, GFP_KERNEL); 2912 if (!buf) 2913 return -ENOMEM; 2914 2915 put_unaligned_le32(val, buf); 2916 2917 pipe = usb_sndctrlpipe(data->udev, 0); 2918 err = usb_control_msg(data->udev, pipe, 0x02, 2919 0x5E, 2920 reg >> 16, reg & 0xffff, 2921 buf, 4, USB_CTRL_SET_TIMEOUT); 2922 if (err < 0) { 2923 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); 2924 goto err_free_buf; 2925 } 2926 2927 err_free_buf: 2928 kfree(buf); 2929 2930 return err; 2931 } 2932 2933 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2934 { 2935 struct hci_dev *hdev = data->hdev; 2936 int pipe, err; 2937 void *buf; 2938 2939 buf = kzalloc(4, GFP_KERNEL); 2940 if (!buf) 2941 return -ENOMEM; 2942 2943 pipe = usb_rcvctrlpipe(data->udev, 0); 2944 err = usb_control_msg(data->udev, pipe, 0x01, 2945 0xDE, 2946 reg >> 16, reg & 0xffff, 2947 buf, 4, USB_CTRL_SET_TIMEOUT); 2948 if (err < 0) { 2949 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); 2950 goto err_free_buf; 2951 } 2952 2953 *val = get_unaligned_le32(buf); 2954 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); 2955 2956 err_free_buf: 2957 kfree(buf); 2958 2959 return err; 2960 } 2961 2962 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2963 { 2964 int pipe, err, size = sizeof(u32); 2965 void *buf; 2966 2967 buf = kzalloc(size, GFP_KERNEL); 2968 if (!buf) 2969 return -ENOMEM; 2970 2971 pipe = usb_rcvctrlpipe(data->udev, 0); 2972 err = usb_control_msg(data->udev, pipe, 0x63, 2973 USB_TYPE_VENDOR | USB_DIR_IN, 2974 reg >> 16, reg & 0xffff, 2975 buf, size, USB_CTRL_SET_TIMEOUT); 2976 if (err < 0) 2977 goto err_free_buf; 2978 2979 *val = get_unaligned_le32(buf); 2980 2981 err_free_buf: 2982 kfree(buf); 2983 2984 return err; 2985 } 2986 2987 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) 2988 { 2989 return btusb_mtk_reg_read(data, reg, id); 2990 } 2991 2992 static u32 btusb_mtk_reset_done(struct hci_dev *hdev) 2993 { 2994 struct btusb_data *data = hci_get_drvdata(hdev); 2995 u32 val = 0; 2996 2997 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); 2998 2999 return val & MTK_BT_RST_DONE; 3000 } 3001 3002 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 3003 { 3004 struct btusb_data *data = hci_get_drvdata(hdev); 3005 struct btmediatek_data *mediatek; 3006 u32 val; 3007 int err; 3008 3009 /* It's MediaTek specific bluetooth reset mechanism via USB */ 3010 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 3011 bt_dev_err(hdev, "last reset failed? Not resetting again"); 3012 return -EBUSY; 3013 } 3014 3015 err = usb_autopm_get_interface(data->intf); 3016 if (err < 0) 3017 return err; 3018 3019 btusb_stop_traffic(data); 3020 usb_kill_anchored_urbs(&data->tx_anchor); 3021 mediatek = hci_get_priv(hdev); 3022 3023 if (mediatek->dev_id == 0x7925) { 3024 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3025 val |= (1 << 5); 3026 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3027 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3028 val &= 0xFFFF00FF; 3029 val |= (1 << 13); 3030 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3031 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); 3032 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); 3033 val |= (1 << 0); 3034 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); 3035 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3036 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3037 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3038 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3039 msleep(100); 3040 } else { 3041 /* It's Device EndPoint Reset Option Register */ 3042 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); 3043 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3044 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); 3045 3046 /* Reset the bluetooth chip via USB interface. */ 3047 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); 3048 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3049 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3050 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3051 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3052 /* MT7921 need to delay 20ms between toggle reset bit */ 3053 msleep(20); 3054 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); 3055 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); 3056 } 3057 3058 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val, 3059 val & MTK_BT_RST_DONE, 20000, 1000000); 3060 if (err < 0) 3061 bt_dev_err(hdev, "Reset timeout"); 3062 3063 btusb_mtk_id_get(data, 0x70010200, &val); 3064 if (!val) 3065 bt_dev_err(hdev, "Can't get device id, subsys reset fail."); 3066 3067 usb_queue_reset_device(data->intf); 3068 3069 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); 3070 3071 return err; 3072 } 3073 3074 static int btusb_mtk_setup(struct hci_dev *hdev) 3075 { 3076 struct btusb_data *data = hci_get_drvdata(hdev); 3077 struct btmtk_hci_wmt_params wmt_params; 3078 ktime_t calltime, delta, rettime; 3079 struct btmtk_tci_sleep tci_sleep; 3080 unsigned long long duration; 3081 struct sk_buff *skb; 3082 const char *fwname; 3083 int err, status; 3084 u32 dev_id = 0; 3085 char fw_bin_name[64]; 3086 u32 fw_version = 0; 3087 u8 param; 3088 struct btmediatek_data *mediatek; 3089 3090 calltime = ktime_get(); 3091 3092 err = btusb_mtk_id_get(data, 0x80000008, &dev_id); 3093 if (err < 0) { 3094 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3095 return err; 3096 } 3097 3098 if (!dev_id || dev_id != 0x7663) { 3099 err = btusb_mtk_id_get(data, 0x70010200, &dev_id); 3100 if (err < 0) { 3101 bt_dev_err(hdev, "Failed to get device id (%d)", err); 3102 return err; 3103 } 3104 err = btusb_mtk_id_get(data, 0x80021004, &fw_version); 3105 if (err < 0) { 3106 bt_dev_err(hdev, "Failed to get fw version (%d)", err); 3107 return err; 3108 } 3109 } 3110 3111 mediatek = hci_get_priv(hdev); 3112 mediatek->dev_id = dev_id; 3113 mediatek->reset_sync = btusb_mtk_reset; 3114 3115 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version); 3116 if (err < 0) 3117 bt_dev_err(hdev, "Failed to register coredump (%d)", err); 3118 3119 switch (dev_id) { 3120 case 0x7663: 3121 fwname = FIRMWARE_MT7663; 3122 break; 3123 case 0x7668: 3124 fwname = FIRMWARE_MT7668; 3125 break; 3126 case 0x7922: 3127 case 0x7961: 3128 case 0x7925: 3129 if (dev_id == 0x7925) 3130 snprintf(fw_bin_name, sizeof(fw_bin_name), 3131 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3132 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1); 3133 else 3134 snprintf(fw_bin_name, sizeof(fw_bin_name), 3135 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 3136 dev_id & 0xffff, (fw_version & 0xff) + 1); 3137 3138 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name, 3139 btusb_mtk_hci_wmt_sync); 3140 if (err < 0) { 3141 bt_dev_err(hdev, "Failed to set up firmware (%d)", err); 3142 return err; 3143 } 3144 3145 /* It's Device EndPoint Reset Option Register */ 3146 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3147 3148 /* Enable Bluetooth protocol */ 3149 param = 1; 3150 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3151 wmt_params.flag = 0; 3152 wmt_params.dlen = sizeof(param); 3153 wmt_params.data = ¶m; 3154 wmt_params.status = NULL; 3155 3156 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3157 if (err < 0) { 3158 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3159 return err; 3160 } 3161 3162 hci_set_msft_opcode(hdev, 0xFD30); 3163 hci_set_aosp_capable(hdev); 3164 goto done; 3165 default: 3166 bt_dev_err(hdev, "Unsupported hardware variant (%08x)", 3167 dev_id); 3168 return -ENODEV; 3169 } 3170 3171 /* Query whether the firmware is already download */ 3172 wmt_params.op = BTMTK_WMT_SEMAPHORE; 3173 wmt_params.flag = 1; 3174 wmt_params.dlen = 0; 3175 wmt_params.data = NULL; 3176 wmt_params.status = &status; 3177 3178 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3179 if (err < 0) { 3180 bt_dev_err(hdev, "Failed to query firmware status (%d)", err); 3181 return err; 3182 } 3183 3184 if (status == BTMTK_WMT_PATCH_DONE) { 3185 bt_dev_info(hdev, "firmware already downloaded"); 3186 goto ignore_setup_fw; 3187 } 3188 3189 /* Setup a firmware which the device definitely requires */ 3190 err = btmtk_setup_firmware(hdev, fwname, 3191 btusb_mtk_hci_wmt_sync); 3192 if (err < 0) 3193 return err; 3194 3195 ignore_setup_fw: 3196 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, 3197 status < 0 || status != BTMTK_WMT_ON_PROGRESS, 3198 2000, 5000000); 3199 /* -ETIMEDOUT happens */ 3200 if (err < 0) 3201 return err; 3202 3203 /* The other errors happen in btusb_mtk_func_query */ 3204 if (status < 0) 3205 return status; 3206 3207 if (status == BTMTK_WMT_ON_DONE) { 3208 bt_dev_info(hdev, "function already on"); 3209 goto ignore_func_on; 3210 } 3211 3212 /* Enable Bluetooth protocol */ 3213 param = 1; 3214 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3215 wmt_params.flag = 0; 3216 wmt_params.dlen = sizeof(param); 3217 wmt_params.data = ¶m; 3218 wmt_params.status = NULL; 3219 3220 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3221 if (err < 0) { 3222 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3223 return err; 3224 } 3225 3226 ignore_func_on: 3227 /* Apply the low power environment setup */ 3228 tci_sleep.mode = 0x5; 3229 tci_sleep.duration = cpu_to_le16(0x640); 3230 tci_sleep.host_duration = cpu_to_le16(0x640); 3231 tci_sleep.host_wakeup_pin = 0; 3232 tci_sleep.time_compensation = 0; 3233 3234 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, 3235 HCI_INIT_TIMEOUT); 3236 if (IS_ERR(skb)) { 3237 err = PTR_ERR(skb); 3238 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); 3239 return err; 3240 } 3241 kfree_skb(skb); 3242 3243 done: 3244 rettime = ktime_get(); 3245 delta = ktime_sub(rettime, calltime); 3246 duration = (unsigned long long)ktime_to_ns(delta) >> 10; 3247 3248 bt_dev_info(hdev, "Device setup in %llu usecs", duration); 3249 3250 return 0; 3251 } 3252 3253 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3254 { 3255 struct btmtk_hci_wmt_params wmt_params; 3256 u8 param = 0; 3257 int err; 3258 3259 /* Disable the device */ 3260 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3261 wmt_params.flag = 0; 3262 wmt_params.dlen = sizeof(param); 3263 wmt_params.data = ¶m; 3264 wmt_params.status = NULL; 3265 3266 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3267 if (err < 0) { 3268 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3269 return err; 3270 } 3271 3272 return 0; 3273 } 3274 3275 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3276 { 3277 struct btusb_data *data = hci_get_drvdata(hdev); 3278 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); 3279 3280 switch (handle) { 3281 case 0xfc6f: /* Firmware dump from device */ 3282 /* When the firmware hangs, the device can no longer 3283 * suspend and thus disable auto-suspend. 3284 */ 3285 usb_disable_autosuspend(data->udev); 3286 3287 /* We need to forward the diagnostic packet to userspace daemon 3288 * for backward compatibility, so we have to clone the packet 3289 * extraly for the in-kernel coredump support. 3290 */ 3291 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) { 3292 struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC); 3293 3294 if (skb_cd) 3295 btmtk_process_coredump(hdev, skb_cd); 3296 } 3297 3298 fallthrough; 3299 case 0x05ff: /* Firmware debug logging 1 */ 3300 case 0x05fe: /* Firmware debug logging 2 */ 3301 return hci_recv_diag(hdev, skb); 3302 } 3303 3304 return hci_recv_frame(hdev, skb); 3305 } 3306 3307 #ifdef CONFIG_PM 3308 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3309 static int marvell_config_oob_wake(struct hci_dev *hdev) 3310 { 3311 struct sk_buff *skb; 3312 struct btusb_data *data = hci_get_drvdata(hdev); 3313 struct device *dev = &data->udev->dev; 3314 u16 pin, gap, opcode; 3315 int ret; 3316 u8 cmd[5]; 3317 3318 /* Move on if no wakeup pin specified */ 3319 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3320 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3321 return 0; 3322 3323 /* Vendor specific command to configure a GPIO as wake-up pin */ 3324 opcode = hci_opcode_pack(0x3F, 0x59); 3325 cmd[0] = opcode & 0xFF; 3326 cmd[1] = opcode >> 8; 3327 cmd[2] = 2; /* length of parameters that follow */ 3328 cmd[3] = pin; 3329 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3330 3331 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3332 if (!skb) { 3333 bt_dev_err(hdev, "%s: No memory", __func__); 3334 return -ENOMEM; 3335 } 3336 3337 skb_put_data(skb, cmd, sizeof(cmd)); 3338 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3339 3340 ret = btusb_send_frame(hdev, skb); 3341 if (ret) { 3342 bt_dev_err(hdev, "%s: configuration failed", __func__); 3343 kfree_skb(skb); 3344 return ret; 3345 } 3346 3347 return 0; 3348 } 3349 #endif 3350 3351 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3352 const bdaddr_t *bdaddr) 3353 { 3354 struct sk_buff *skb; 3355 u8 buf[8]; 3356 long ret; 3357 3358 buf[0] = 0xfe; 3359 buf[1] = sizeof(bdaddr_t); 3360 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3361 3362 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3363 if (IS_ERR(skb)) { 3364 ret = PTR_ERR(skb); 3365 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3366 ret); 3367 return ret; 3368 } 3369 kfree_skb(skb); 3370 3371 return 0; 3372 } 3373 3374 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3375 const bdaddr_t *bdaddr) 3376 { 3377 struct sk_buff *skb; 3378 u8 buf[10]; 3379 long ret; 3380 3381 buf[0] = 0x01; 3382 buf[1] = 0x01; 3383 buf[2] = 0x00; 3384 buf[3] = sizeof(bdaddr_t); 3385 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3386 3387 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3388 if (IS_ERR(skb)) { 3389 ret = PTR_ERR(skb); 3390 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3391 return ret; 3392 } 3393 kfree_skb(skb); 3394 3395 return 0; 3396 } 3397 3398 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3399 const bdaddr_t *bdaddr) 3400 { 3401 struct sk_buff *skb; 3402 u8 buf[6]; 3403 long ret; 3404 3405 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3406 3407 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3408 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3409 if (IS_ERR(skb)) { 3410 ret = PTR_ERR(skb); 3411 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3412 return ret; 3413 } 3414 kfree_skb(skb); 3415 3416 return 0; 3417 } 3418 3419 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3420 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3421 #define QCA_MEMDUMP_VSE_CLASS 0x01 3422 #define QCA_MEMDUMP_MSG_TYPE 0x08 3423 #define QCA_MEMDUMP_PKT_SIZE 248 3424 #define QCA_LAST_SEQUENCE_NUM 0xffff 3425 3426 struct qca_dump_hdr { 3427 u8 vse_class; 3428 u8 msg_type; 3429 __le16 seqno; 3430 u8 reserved; 3431 union { 3432 u8 data[0]; 3433 struct { 3434 __le32 ram_dump_size; 3435 u8 data0[0]; 3436 } __packed; 3437 }; 3438 } __packed; 3439 3440 3441 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3442 { 3443 char buf[128]; 3444 struct btusb_data *btdata = hci_get_drvdata(hdev); 3445 3446 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3447 btdata->qca_dump.controller_id); 3448 skb_put_data(skb, buf, strlen(buf)); 3449 3450 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3451 btdata->qca_dump.fw_version); 3452 skb_put_data(skb, buf, strlen(buf)); 3453 3454 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3455 btusb_driver.name); 3456 skb_put_data(skb, buf, strlen(buf)); 3457 3458 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3459 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3460 skb_put_data(skb, buf, strlen(buf)); 3461 3462 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3463 hdev->lmp_subver); 3464 skb_put_data(skb, buf, strlen(buf)); 3465 } 3466 3467 static void btusb_coredump_qca(struct hci_dev *hdev) 3468 { 3469 int err; 3470 static const u8 param[] = { 0x26 }; 3471 3472 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3473 if (err < 0) 3474 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3475 } 3476 3477 /* 3478 * ==0: not a dump pkt. 3479 * < 0: fails to handle a dump pkt 3480 * > 0: otherwise. 3481 */ 3482 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3483 { 3484 int ret = 1; 3485 u8 pkt_type; 3486 u8 *sk_ptr; 3487 unsigned int sk_len; 3488 u16 seqno; 3489 u32 dump_size; 3490 3491 struct hci_event_hdr *event_hdr; 3492 struct hci_acl_hdr *acl_hdr; 3493 struct qca_dump_hdr *dump_hdr; 3494 struct btusb_data *btdata = hci_get_drvdata(hdev); 3495 struct usb_device *udev = btdata->udev; 3496 3497 pkt_type = hci_skb_pkt_type(skb); 3498 sk_ptr = skb->data; 3499 sk_len = skb->len; 3500 3501 if (pkt_type == HCI_ACLDATA_PKT) { 3502 acl_hdr = hci_acl_hdr(skb); 3503 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3504 return 0; 3505 sk_ptr += HCI_ACL_HDR_SIZE; 3506 sk_len -= HCI_ACL_HDR_SIZE; 3507 event_hdr = (struct hci_event_hdr *)sk_ptr; 3508 } else { 3509 event_hdr = hci_event_hdr(skb); 3510 } 3511 3512 if ((event_hdr->evt != HCI_VENDOR_PKT) 3513 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3514 return 0; 3515 3516 sk_ptr += HCI_EVENT_HDR_SIZE; 3517 sk_len -= HCI_EVENT_HDR_SIZE; 3518 3519 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3520 if ((sk_len < offsetof(struct qca_dump_hdr, data)) 3521 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) 3522 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3523 return 0; 3524 3525 /*it is dump pkt now*/ 3526 seqno = le16_to_cpu(dump_hdr->seqno); 3527 if (seqno == 0) { 3528 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3529 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3530 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3531 ret = -EILSEQ; 3532 bt_dev_err(hdev, "Invalid memdump size(%u)", 3533 dump_size); 3534 goto out; 3535 } 3536 3537 ret = hci_devcd_init(hdev, dump_size); 3538 if (ret < 0) { 3539 bt_dev_err(hdev, "memdump init error(%d)", ret); 3540 goto out; 3541 } 3542 3543 btdata->qca_dump.ram_dump_size = dump_size; 3544 btdata->qca_dump.ram_dump_seqno = 0; 3545 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3546 sk_len -= offsetof(struct qca_dump_hdr, data0); 3547 3548 usb_disable_autosuspend(udev); 3549 bt_dev_info(hdev, "%s memdump size(%u)\n", 3550 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3551 dump_size); 3552 } else { 3553 sk_ptr += offsetof(struct qca_dump_hdr, data); 3554 sk_len -= offsetof(struct qca_dump_hdr, data); 3555 } 3556 3557 if (!btdata->qca_dump.ram_dump_size) { 3558 ret = -EINVAL; 3559 bt_dev_err(hdev, "memdump is not active"); 3560 goto out; 3561 } 3562 3563 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3564 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3565 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3566 bt_dev_err(hdev, 3567 "expected memdump seqno(%u) is not received(%u)\n", 3568 btdata->qca_dump.ram_dump_seqno, seqno); 3569 btdata->qca_dump.ram_dump_seqno = seqno; 3570 kfree_skb(skb); 3571 return ret; 3572 } 3573 3574 skb_pull(skb, skb->len - sk_len); 3575 hci_devcd_append(hdev, skb); 3576 btdata->qca_dump.ram_dump_seqno++; 3577 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3578 bt_dev_info(hdev, 3579 "memdump done: pkts(%u), total(%u)\n", 3580 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3581 3582 hci_devcd_complete(hdev); 3583 goto out; 3584 } 3585 return ret; 3586 3587 out: 3588 if (btdata->qca_dump.ram_dump_size) 3589 usb_enable_autosuspend(udev); 3590 btdata->qca_dump.ram_dump_size = 0; 3591 btdata->qca_dump.ram_dump_seqno = 0; 3592 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3593 3594 if (ret < 0) 3595 kfree_skb(skb); 3596 return ret; 3597 } 3598 3599 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3600 { 3601 if (handle_dump_pkt_qca(hdev, skb)) 3602 return 0; 3603 return hci_recv_frame(hdev, skb); 3604 } 3605 3606 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3607 { 3608 if (handle_dump_pkt_qca(hdev, skb)) 3609 return 0; 3610 return hci_recv_frame(hdev, skb); 3611 } 3612 3613 3614 #define QCA_DFU_PACKET_LEN 4096 3615 3616 #define QCA_GET_TARGET_VERSION 0x09 3617 #define QCA_CHECK_STATUS 0x05 3618 #define QCA_DFU_DOWNLOAD 0x01 3619 3620 #define QCA_SYSCFG_UPDATED 0x40 3621 #define QCA_PATCH_UPDATED 0x80 3622 #define QCA_DFU_TIMEOUT 3000 3623 #define QCA_FLAG_MULTI_NVM 0x80 3624 #define QCA_BT_RESET_WAIT_MS 100 3625 3626 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3627 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3628 3629 struct qca_version { 3630 __le32 rom_version; 3631 __le32 patch_version; 3632 __le32 ram_version; 3633 __u8 chip_id; 3634 __u8 platform_id; 3635 __le16 flag; 3636 __u8 reserved[4]; 3637 } __packed; 3638 3639 struct qca_rampatch_version { 3640 __le16 rom_version_high; 3641 __le16 rom_version_low; 3642 __le16 patch_version; 3643 } __packed; 3644 3645 struct qca_device_info { 3646 u32 rom_version; 3647 u8 rampatch_hdr; /* length of header in rampatch */ 3648 u8 nvm_hdr; /* length of header in NVM */ 3649 u8 ver_offset; /* offset of version structure in rampatch */ 3650 }; 3651 3652 static const struct qca_device_info qca_devices_table[] = { 3653 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3654 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3655 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3656 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3657 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3658 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3659 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3660 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3661 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3662 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3663 }; 3664 3665 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3666 void *data, u16 size) 3667 { 3668 int pipe, err; 3669 u8 *buf; 3670 3671 buf = kmalloc(size, GFP_KERNEL); 3672 if (!buf) 3673 return -ENOMEM; 3674 3675 /* Found some of USB hosts have IOT issues with ours so that we should 3676 * not wait until HCI layer is ready. 3677 */ 3678 pipe = usb_rcvctrlpipe(udev, 0); 3679 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3680 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3681 if (err < 0) { 3682 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3683 goto done; 3684 } 3685 3686 memcpy(data, buf, size); 3687 3688 done: 3689 kfree(buf); 3690 3691 return err; 3692 } 3693 3694 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3695 const struct firmware *firmware, 3696 size_t hdr_size) 3697 { 3698 struct btusb_data *btdata = hci_get_drvdata(hdev); 3699 struct usb_device *udev = btdata->udev; 3700 size_t count, size, sent = 0; 3701 int pipe, len, err; 3702 u8 *buf; 3703 3704 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3705 if (!buf) 3706 return -ENOMEM; 3707 3708 count = firmware->size; 3709 3710 size = min_t(size_t, count, hdr_size); 3711 memcpy(buf, firmware->data, size); 3712 3713 /* USB patches should go down to controller through USB path 3714 * because binary format fits to go down through USB channel. 3715 * USB control path is for patching headers and USB bulk is for 3716 * patch body. 3717 */ 3718 pipe = usb_sndctrlpipe(udev, 0); 3719 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3720 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3721 if (err < 0) { 3722 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3723 goto done; 3724 } 3725 3726 sent += size; 3727 count -= size; 3728 3729 /* ep2 need time to switch from function acl to function dfu, 3730 * so we add 20ms delay here. 3731 */ 3732 msleep(20); 3733 3734 while (count) { 3735 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3736 3737 memcpy(buf, firmware->data + sent, size); 3738 3739 pipe = usb_sndbulkpipe(udev, 0x02); 3740 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3741 QCA_DFU_TIMEOUT); 3742 if (err < 0) { 3743 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3744 sent, firmware->size, err); 3745 break; 3746 } 3747 3748 if (size != len) { 3749 bt_dev_err(hdev, "Failed to get bulk buffer"); 3750 err = -EILSEQ; 3751 break; 3752 } 3753 3754 sent += size; 3755 count -= size; 3756 } 3757 3758 done: 3759 kfree(buf); 3760 return err; 3761 } 3762 3763 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3764 struct qca_version *ver, 3765 const struct qca_device_info *info) 3766 { 3767 struct qca_rampatch_version *rver; 3768 const struct firmware *fw; 3769 u32 ver_rom, ver_patch, rver_rom; 3770 u16 rver_rom_low, rver_rom_high, rver_patch; 3771 char fwname[64]; 3772 int err; 3773 3774 ver_rom = le32_to_cpu(ver->rom_version); 3775 ver_patch = le32_to_cpu(ver->patch_version); 3776 3777 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3778 3779 err = request_firmware(&fw, fwname, &hdev->dev); 3780 if (err) { 3781 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3782 fwname, err); 3783 return err; 3784 } 3785 3786 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3787 3788 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3789 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3790 rver_patch = le16_to_cpu(rver->patch_version); 3791 3792 if (ver_rom & ~0xffffU) { 3793 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3794 rver_rom = rver_rom_high << 16 | rver_rom_low; 3795 } else { 3796 rver_rom = rver_rom_low; 3797 } 3798 3799 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3800 "firmware rome 0x%x build 0x%x", 3801 rver_rom, rver_patch, ver_rom, ver_patch); 3802 3803 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3804 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3805 err = -EINVAL; 3806 goto done; 3807 } 3808 3809 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3810 3811 done: 3812 release_firmware(fw); 3813 3814 return err; 3815 } 3816 3817 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3818 const struct qca_version *ver) 3819 { 3820 u32 rom_version = le32_to_cpu(ver->rom_version); 3821 u16 flag = le16_to_cpu(ver->flag); 3822 3823 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3824 /* The board_id should be split into two bytes 3825 * The 1st byte is chip ID, and the 2nd byte is platform ID 3826 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3827 * we have several platforms, and platform IDs are continuously added 3828 * Platform ID: 3829 * 0x00 is for Mobile 3830 * 0x01 is for X86 3831 * 0x02 is for Automotive 3832 * 0x03 is for Consumer electronic 3833 */ 3834 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3835 const char *variant; 3836 3837 switch (le32_to_cpu(ver->ram_version)) { 3838 case WCN6855_2_0_RAM_VERSION_GF: 3839 case WCN6855_2_1_RAM_VERSION_GF: 3840 variant = "_gf"; 3841 break; 3842 default: 3843 variant = ""; 3844 break; 3845 } 3846 3847 if (board_id == 0) { 3848 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3849 rom_version, variant); 3850 } else { 3851 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3852 rom_version, variant, board_id); 3853 } 3854 } else { 3855 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3856 rom_version); 3857 } 3858 3859 } 3860 3861 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3862 struct qca_version *ver, 3863 const struct qca_device_info *info) 3864 { 3865 const struct firmware *fw; 3866 char fwname[64]; 3867 int err; 3868 3869 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3870 3871 err = request_firmware(&fw, fwname, &hdev->dev); 3872 if (err) { 3873 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3874 fwname, err); 3875 return err; 3876 } 3877 3878 bt_dev_info(hdev, "using NVM file: %s", fwname); 3879 3880 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3881 3882 release_firmware(fw); 3883 3884 return err; 3885 } 3886 3887 /* identify the ROM version and check whether patches are needed */ 3888 static bool btusb_qca_need_patch(struct usb_device *udev) 3889 { 3890 struct qca_version ver; 3891 3892 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3893 sizeof(ver)) < 0) 3894 return false; 3895 /* only low ROM versions need patches */ 3896 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3897 } 3898 3899 static int btusb_setup_qca(struct hci_dev *hdev) 3900 { 3901 struct btusb_data *btdata = hci_get_drvdata(hdev); 3902 struct usb_device *udev = btdata->udev; 3903 const struct qca_device_info *info = NULL; 3904 struct qca_version ver; 3905 u32 ver_rom; 3906 u8 status; 3907 int i, err; 3908 3909 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3910 sizeof(ver)); 3911 if (err < 0) 3912 return err; 3913 3914 ver_rom = le32_to_cpu(ver.rom_version); 3915 3916 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3917 if (ver_rom == qca_devices_table[i].rom_version) 3918 info = &qca_devices_table[i]; 3919 } 3920 if (!info) { 3921 /* If the rom_version is not matched in the qca_devices_table 3922 * and the high ROM version is not zero, we assume this chip no 3923 * need to load the rampatch and nvm. 3924 */ 3925 if (ver_rom & ~0xffffU) 3926 return 0; 3927 3928 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3929 return -ENODEV; 3930 } 3931 3932 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3933 sizeof(status)); 3934 if (err < 0) 3935 return err; 3936 3937 if (!(status & QCA_PATCH_UPDATED)) { 3938 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3939 if (err < 0) 3940 return err; 3941 } 3942 3943 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3944 sizeof(ver)); 3945 if (err < 0) 3946 return err; 3947 3948 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3949 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3950 3951 if (!(status & QCA_SYSCFG_UPDATED)) { 3952 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3953 if (err < 0) 3954 return err; 3955 3956 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3957 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3958 * cause potential enable failure. 3959 */ 3960 if (info->rom_version >= 0x00130201) 3961 msleep(QCA_BT_RESET_WAIT_MS); 3962 } 3963 3964 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3965 * work with the likes of HSP/HFP mSBC. 3966 */ 3967 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3968 3969 return 0; 3970 } 3971 3972 static inline int __set_diag_interface(struct hci_dev *hdev) 3973 { 3974 struct btusb_data *data = hci_get_drvdata(hdev); 3975 struct usb_interface *intf = data->diag; 3976 int i; 3977 3978 if (!data->diag) 3979 return -ENODEV; 3980 3981 data->diag_tx_ep = NULL; 3982 data->diag_rx_ep = NULL; 3983 3984 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3985 struct usb_endpoint_descriptor *ep_desc; 3986 3987 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3988 3989 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3990 data->diag_tx_ep = ep_desc; 3991 continue; 3992 } 3993 3994 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3995 data->diag_rx_ep = ep_desc; 3996 continue; 3997 } 3998 } 3999 4000 if (!data->diag_tx_ep || !data->diag_rx_ep) { 4001 bt_dev_err(hdev, "invalid diagnostic descriptors"); 4002 return -ENODEV; 4003 } 4004 4005 return 0; 4006 } 4007 4008 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 4009 { 4010 struct btusb_data *data = hci_get_drvdata(hdev); 4011 struct sk_buff *skb; 4012 struct urb *urb; 4013 unsigned int pipe; 4014 4015 if (!data->diag_tx_ep) 4016 return ERR_PTR(-ENODEV); 4017 4018 urb = usb_alloc_urb(0, GFP_KERNEL); 4019 if (!urb) 4020 return ERR_PTR(-ENOMEM); 4021 4022 skb = bt_skb_alloc(2, GFP_KERNEL); 4023 if (!skb) { 4024 usb_free_urb(urb); 4025 return ERR_PTR(-ENOMEM); 4026 } 4027 4028 skb_put_u8(skb, 0xf0); 4029 skb_put_u8(skb, enable); 4030 4031 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 4032 4033 usb_fill_bulk_urb(urb, data->udev, pipe, 4034 skb->data, skb->len, btusb_tx_complete, skb); 4035 4036 skb->dev = (void *)hdev; 4037 4038 return urb; 4039 } 4040 4041 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 4042 { 4043 struct btusb_data *data = hci_get_drvdata(hdev); 4044 struct urb *urb; 4045 4046 if (!data->diag) 4047 return -ENODEV; 4048 4049 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4050 return -ENETDOWN; 4051 4052 urb = alloc_diag_urb(hdev, enable); 4053 if (IS_ERR(urb)) 4054 return PTR_ERR(urb); 4055 4056 return submit_or_queue_tx_urb(hdev, urb); 4057 } 4058 4059 #ifdef CONFIG_PM 4060 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 4061 { 4062 struct btusb_data *data = priv; 4063 4064 pm_wakeup_event(&data->udev->dev, 0); 4065 pm_system_wakeup(); 4066 4067 /* Disable only if not already disabled (keep it balanced) */ 4068 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4069 disable_irq_nosync(irq); 4070 disable_irq_wake(irq); 4071 } 4072 return IRQ_HANDLED; 4073 } 4074 4075 static const struct of_device_id btusb_match_table[] = { 4076 { .compatible = "usb1286,204e" }, 4077 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 4078 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 4079 { } 4080 }; 4081 MODULE_DEVICE_TABLE(of, btusb_match_table); 4082 4083 /* Use an oob wakeup pin? */ 4084 static int btusb_config_oob_wake(struct hci_dev *hdev) 4085 { 4086 struct btusb_data *data = hci_get_drvdata(hdev); 4087 struct device *dev = &data->udev->dev; 4088 int irq, ret; 4089 4090 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4091 4092 if (!of_match_device(btusb_match_table, dev)) 4093 return 0; 4094 4095 /* Move on if no IRQ specified */ 4096 irq = of_irq_get_byname(dev->of_node, "wakeup"); 4097 if (irq <= 0) { 4098 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 4099 return 0; 4100 } 4101 4102 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4103 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 4104 0, "OOB Wake-on-BT", data); 4105 if (ret) { 4106 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4107 return ret; 4108 } 4109 4110 ret = device_init_wakeup(dev, true); 4111 if (ret) { 4112 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4113 return ret; 4114 } 4115 4116 data->oob_wake_irq = irq; 4117 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4118 return 0; 4119 } 4120 #endif 4121 4122 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4123 { 4124 if (dmi_check_system(btusb_needs_reset_resume_table)) 4125 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4126 } 4127 4128 static bool btusb_wakeup(struct hci_dev *hdev) 4129 { 4130 struct btusb_data *data = hci_get_drvdata(hdev); 4131 4132 return device_may_wakeup(&data->udev->dev); 4133 } 4134 4135 static int btusb_shutdown_qca(struct hci_dev *hdev) 4136 { 4137 struct sk_buff *skb; 4138 4139 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 4140 if (IS_ERR(skb)) { 4141 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4142 return PTR_ERR(skb); 4143 } 4144 kfree_skb(skb); 4145 4146 return 0; 4147 } 4148 4149 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4150 size_t count, loff_t *ppos) 4151 { 4152 struct btusb_data *data = file->private_data; 4153 char buf[3]; 4154 4155 buf[0] = data->poll_sync ? 'Y' : 'N'; 4156 buf[1] = '\n'; 4157 buf[2] = '\0'; 4158 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4159 } 4160 4161 static ssize_t force_poll_sync_write(struct file *file, 4162 const char __user *user_buf, 4163 size_t count, loff_t *ppos) 4164 { 4165 struct btusb_data *data = file->private_data; 4166 bool enable; 4167 int err; 4168 4169 err = kstrtobool_from_user(user_buf, count, &enable); 4170 if (err) 4171 return err; 4172 4173 /* Only allow changes while the adapter is down */ 4174 if (test_bit(HCI_UP, &data->hdev->flags)) 4175 return -EPERM; 4176 4177 if (data->poll_sync == enable) 4178 return -EALREADY; 4179 4180 data->poll_sync = enable; 4181 4182 return count; 4183 } 4184 4185 static const struct file_operations force_poll_sync_fops = { 4186 .open = simple_open, 4187 .read = force_poll_sync_read, 4188 .write = force_poll_sync_write, 4189 .llseek = default_llseek, 4190 }; 4191 4192 static int btusb_probe(struct usb_interface *intf, 4193 const struct usb_device_id *id) 4194 { 4195 struct usb_endpoint_descriptor *ep_desc; 4196 struct gpio_desc *reset_gpio; 4197 struct btusb_data *data; 4198 struct hci_dev *hdev; 4199 unsigned ifnum_base; 4200 int i, err, priv_size; 4201 4202 BT_DBG("intf %p id %p", intf, id); 4203 4204 if ((id->driver_info & BTUSB_IFNUM_2) && 4205 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4206 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4207 return -ENODEV; 4208 4209 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4210 4211 if (!id->driver_info) { 4212 const struct usb_device_id *match; 4213 4214 match = usb_match_id(intf, quirks_table); 4215 if (match) 4216 id = match; 4217 } 4218 4219 if (id->driver_info == BTUSB_IGNORE) 4220 return -ENODEV; 4221 4222 if (id->driver_info & BTUSB_ATH3012) { 4223 struct usb_device *udev = interface_to_usbdev(intf); 4224 4225 /* Old firmware would otherwise let ath3k driver load 4226 * patch and sysconfig files 4227 */ 4228 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4229 !btusb_qca_need_patch(udev)) 4230 return -ENODEV; 4231 } 4232 4233 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 4234 if (!data) 4235 return -ENOMEM; 4236 4237 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4238 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4239 4240 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 4241 data->intr_ep = ep_desc; 4242 continue; 4243 } 4244 4245 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4246 data->bulk_tx_ep = ep_desc; 4247 continue; 4248 } 4249 4250 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4251 data->bulk_rx_ep = ep_desc; 4252 continue; 4253 } 4254 } 4255 4256 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 4257 return -ENODEV; 4258 4259 if (id->driver_info & BTUSB_AMP) { 4260 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4261 data->cmdreq = 0x2b; 4262 } else { 4263 data->cmdreq_type = USB_TYPE_CLASS; 4264 data->cmdreq = 0x00; 4265 } 4266 4267 data->udev = interface_to_usbdev(intf); 4268 data->intf = intf; 4269 4270 INIT_WORK(&data->work, btusb_work); 4271 INIT_WORK(&data->waker, btusb_waker); 4272 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4273 4274 skb_queue_head_init(&data->acl_q); 4275 4276 init_usb_anchor(&data->deferred); 4277 init_usb_anchor(&data->tx_anchor); 4278 spin_lock_init(&data->txlock); 4279 4280 init_usb_anchor(&data->intr_anchor); 4281 init_usb_anchor(&data->bulk_anchor); 4282 init_usb_anchor(&data->isoc_anchor); 4283 init_usb_anchor(&data->diag_anchor); 4284 init_usb_anchor(&data->ctrl_anchor); 4285 spin_lock_init(&data->rxlock); 4286 4287 priv_size = 0; 4288 4289 data->recv_event = hci_recv_frame; 4290 data->recv_bulk = btusb_recv_bulk; 4291 4292 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4293 /* Allocate extra space for Intel device */ 4294 priv_size += sizeof(struct btintel_data); 4295 4296 /* Override the rx handlers */ 4297 data->recv_event = btintel_recv_event; 4298 data->recv_bulk = btusb_recv_bulk_intel; 4299 } else if (id->driver_info & BTUSB_REALTEK) { 4300 /* Allocate extra space for Realtek device */ 4301 priv_size += sizeof(struct btrealtek_data); 4302 4303 data->recv_event = btusb_recv_event_realtek; 4304 } else if (id->driver_info & BTUSB_MEDIATEK) { 4305 /* Allocate extra space for Mediatek device */ 4306 priv_size += sizeof(struct btmediatek_data); 4307 } 4308 4309 data->recv_acl = hci_recv_frame; 4310 4311 hdev = hci_alloc_dev_priv(priv_size); 4312 if (!hdev) 4313 return -ENOMEM; 4314 4315 hdev->bus = HCI_USB; 4316 hci_set_drvdata(hdev, data); 4317 4318 data->hdev = hdev; 4319 4320 SET_HCIDEV_DEV(hdev, &intf->dev); 4321 4322 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4323 GPIOD_OUT_LOW); 4324 if (IS_ERR(reset_gpio)) { 4325 err = PTR_ERR(reset_gpio); 4326 goto out_free_dev; 4327 } else if (reset_gpio) { 4328 data->reset_gpio = reset_gpio; 4329 } 4330 4331 hdev->open = btusb_open; 4332 hdev->close = btusb_close; 4333 hdev->flush = btusb_flush; 4334 hdev->send = btusb_send_frame; 4335 hdev->notify = btusb_notify; 4336 hdev->wakeup = btusb_wakeup; 4337 4338 #ifdef CONFIG_PM 4339 err = btusb_config_oob_wake(hdev); 4340 if (err) 4341 goto out_free_dev; 4342 4343 /* Marvell devices may need a specific chip configuration */ 4344 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4345 err = marvell_config_oob_wake(hdev); 4346 if (err) 4347 goto out_free_dev; 4348 } 4349 #endif 4350 if (id->driver_info & BTUSB_CW6622) 4351 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4352 4353 if (id->driver_info & BTUSB_BCM2045) 4354 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4355 4356 if (id->driver_info & BTUSB_BCM92035) 4357 hdev->setup = btusb_setup_bcm92035; 4358 4359 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4360 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4361 hdev->manufacturer = 15; 4362 hdev->setup = btbcm_setup_patchram; 4363 hdev->set_diag = btusb_bcm_set_diag; 4364 hdev->set_bdaddr = btbcm_set_bdaddr; 4365 4366 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4367 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4368 } 4369 4370 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4371 (id->driver_info & BTUSB_BCM_APPLE)) { 4372 hdev->manufacturer = 15; 4373 hdev->setup = btbcm_setup_apple; 4374 hdev->set_diag = btusb_bcm_set_diag; 4375 4376 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4377 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4378 } 4379 4380 /* Combined Intel Device setup to support multiple setup routine */ 4381 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4382 err = btintel_configure_setup(hdev, btusb_driver.name); 4383 if (err) 4384 goto out_free_dev; 4385 4386 /* Transport specific configuration */ 4387 hdev->send = btusb_send_frame_intel; 4388 hdev->cmd_timeout = btusb_intel_cmd_timeout; 4389 4390 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4391 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4392 4393 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4394 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4395 4396 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4397 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4398 } 4399 4400 if (id->driver_info & BTUSB_MARVELL) 4401 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4402 4403 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4404 (id->driver_info & BTUSB_MEDIATEK)) { 4405 hdev->setup = btusb_mtk_setup; 4406 hdev->shutdown = btusb_mtk_shutdown; 4407 hdev->manufacturer = 70; 4408 hdev->cmd_timeout = btmtk_reset_sync; 4409 hdev->set_bdaddr = btmtk_set_bdaddr; 4410 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4411 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4412 data->recv_acl = btusb_recv_acl_mtk; 4413 } 4414 4415 if (id->driver_info & BTUSB_SWAVE) { 4416 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4417 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4418 } 4419 4420 if (id->driver_info & BTUSB_INTEL_BOOT) { 4421 hdev->manufacturer = 2; 4422 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4423 } 4424 4425 if (id->driver_info & BTUSB_ATH3012) { 4426 data->setup_on_usb = btusb_setup_qca; 4427 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4428 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4429 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4430 } 4431 4432 if (id->driver_info & BTUSB_QCA_ROME) { 4433 data->setup_on_usb = btusb_setup_qca; 4434 hdev->shutdown = btusb_shutdown_qca; 4435 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4436 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4437 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4438 btusb_check_needs_reset_resume(intf); 4439 } 4440 4441 if (id->driver_info & BTUSB_QCA_WCN6855) { 4442 data->qca_dump.id_vendor = id->idVendor; 4443 data->qca_dump.id_product = id->idProduct; 4444 data->recv_event = btusb_recv_evt_qca; 4445 data->recv_acl = btusb_recv_acl_qca; 4446 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4447 data->setup_on_usb = btusb_setup_qca; 4448 hdev->shutdown = btusb_shutdown_qca; 4449 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4450 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4451 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4452 hci_set_msft_opcode(hdev, 0xFD70); 4453 } 4454 4455 if (id->driver_info & BTUSB_AMP) { 4456 /* AMP controllers do not support SCO packets */ 4457 data->isoc = NULL; 4458 } else { 4459 /* Interface orders are hardcoded in the specification */ 4460 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4461 data->isoc_ifnum = ifnum_base + 1; 4462 } 4463 4464 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4465 (id->driver_info & BTUSB_REALTEK)) { 4466 btrtl_set_driver_name(hdev, btusb_driver.name); 4467 hdev->setup = btusb_setup_realtek; 4468 hdev->shutdown = btrtl_shutdown_realtek; 4469 hdev->cmd_timeout = btusb_rtl_cmd_timeout; 4470 hdev->hw_error = btusb_rtl_hw_error; 4471 4472 /* Realtek devices need to set remote wakeup on auto-suspend */ 4473 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4474 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4475 } 4476 4477 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4478 /* Support is advertised, but not implemented */ 4479 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4480 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4481 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4482 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4483 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks); 4484 } 4485 4486 if (!reset) 4487 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4488 4489 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4490 if (!disable_scofix) 4491 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4492 } 4493 4494 if (id->driver_info & BTUSB_BROKEN_ISOC) 4495 data->isoc = NULL; 4496 4497 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4498 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4499 4500 if (id->driver_info & BTUSB_VALID_LE_STATES) 4501 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); 4502 4503 if (id->driver_info & BTUSB_DIGIANSWER) { 4504 data->cmdreq_type = USB_TYPE_VENDOR; 4505 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4506 } 4507 4508 if (id->driver_info & BTUSB_CSR) { 4509 struct usb_device *udev = data->udev; 4510 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4511 4512 /* Old firmware would otherwise execute USB reset */ 4513 if (bcdDevice < 0x117) 4514 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4515 4516 /* This must be set first in case we disable it for fakes */ 4517 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4518 4519 /* Fake CSR devices with broken commands */ 4520 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4521 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4522 hdev->setup = btusb_setup_csr; 4523 } 4524 4525 if (id->driver_info & BTUSB_SNIFFER) { 4526 struct usb_device *udev = data->udev; 4527 4528 /* New sniffer firmware has crippled HCI interface */ 4529 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4530 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4531 } 4532 4533 if (id->driver_info & BTUSB_INTEL_BOOT) { 4534 /* A bug in the bootloader causes that interrupt interface is 4535 * only enabled after receiving SetInterface(0, AltSetting=0). 4536 */ 4537 err = usb_set_interface(data->udev, 0, 0); 4538 if (err < 0) { 4539 BT_ERR("failed to set interface 0, alt 0 %d", err); 4540 goto out_free_dev; 4541 } 4542 } 4543 4544 if (data->isoc) { 4545 err = usb_driver_claim_interface(&btusb_driver, 4546 data->isoc, data); 4547 if (err < 0) 4548 goto out_free_dev; 4549 } 4550 4551 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4552 if (!usb_driver_claim_interface(&btusb_driver, 4553 data->diag, data)) 4554 __set_diag_interface(hdev); 4555 else 4556 data->diag = NULL; 4557 } 4558 4559 if (enable_autosuspend) 4560 usb_enable_autosuspend(data->udev); 4561 4562 data->poll_sync = enable_poll_sync; 4563 4564 err = hci_register_dev(hdev); 4565 if (err < 0) 4566 goto out_free_dev; 4567 4568 usb_set_intfdata(intf, data); 4569 4570 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4571 &force_poll_sync_fops); 4572 4573 return 0; 4574 4575 out_free_dev: 4576 if (data->reset_gpio) 4577 gpiod_put(data->reset_gpio); 4578 hci_free_dev(hdev); 4579 return err; 4580 } 4581 4582 static void btusb_disconnect(struct usb_interface *intf) 4583 { 4584 struct btusb_data *data = usb_get_intfdata(intf); 4585 struct hci_dev *hdev; 4586 4587 BT_DBG("intf %p", intf); 4588 4589 if (!data) 4590 return; 4591 4592 hdev = data->hdev; 4593 usb_set_intfdata(data->intf, NULL); 4594 4595 if (data->isoc) 4596 usb_set_intfdata(data->isoc, NULL); 4597 4598 if (data->diag) 4599 usb_set_intfdata(data->diag, NULL); 4600 4601 hci_unregister_dev(hdev); 4602 4603 if (intf == data->intf) { 4604 if (data->isoc) 4605 usb_driver_release_interface(&btusb_driver, data->isoc); 4606 if (data->diag) 4607 usb_driver_release_interface(&btusb_driver, data->diag); 4608 } else if (intf == data->isoc) { 4609 if (data->diag) 4610 usb_driver_release_interface(&btusb_driver, data->diag); 4611 usb_driver_release_interface(&btusb_driver, data->intf); 4612 } else if (intf == data->diag) { 4613 usb_driver_release_interface(&btusb_driver, data->intf); 4614 if (data->isoc) 4615 usb_driver_release_interface(&btusb_driver, data->isoc); 4616 } 4617 4618 if (data->oob_wake_irq) 4619 device_init_wakeup(&data->udev->dev, false); 4620 4621 if (data->reset_gpio) 4622 gpiod_put(data->reset_gpio); 4623 4624 hci_free_dev(hdev); 4625 } 4626 4627 #ifdef CONFIG_PM 4628 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4629 { 4630 struct btusb_data *data = usb_get_intfdata(intf); 4631 4632 BT_DBG("intf %p", intf); 4633 4634 if (data->suspend_count++) 4635 return 0; 4636 4637 spin_lock_irq(&data->txlock); 4638 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4639 set_bit(BTUSB_SUSPENDING, &data->flags); 4640 spin_unlock_irq(&data->txlock); 4641 } else { 4642 spin_unlock_irq(&data->txlock); 4643 data->suspend_count--; 4644 return -EBUSY; 4645 } 4646 4647 cancel_work_sync(&data->work); 4648 4649 btusb_stop_traffic(data); 4650 usb_kill_anchored_urbs(&data->tx_anchor); 4651 4652 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4653 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4654 enable_irq_wake(data->oob_wake_irq); 4655 enable_irq(data->oob_wake_irq); 4656 } 4657 4658 /* For global suspend, Realtek devices lose the loaded fw 4659 * in them. But for autosuspend, firmware should remain. 4660 * Actually, it depends on whether the usb host sends 4661 * set feature (enable wakeup) or not. 4662 */ 4663 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4664 if (PMSG_IS_AUTO(message) && 4665 device_can_wakeup(&data->udev->dev)) 4666 data->udev->do_remote_wakeup = 1; 4667 else if (!PMSG_IS_AUTO(message) && 4668 !device_may_wakeup(&data->udev->dev)) { 4669 data->udev->do_remote_wakeup = 0; 4670 data->udev->reset_resume = 1; 4671 } 4672 } 4673 4674 return 0; 4675 } 4676 4677 static void play_deferred(struct btusb_data *data) 4678 { 4679 struct urb *urb; 4680 int err; 4681 4682 while ((urb = usb_get_from_anchor(&data->deferred))) { 4683 usb_anchor_urb(urb, &data->tx_anchor); 4684 4685 err = usb_submit_urb(urb, GFP_ATOMIC); 4686 if (err < 0) { 4687 if (err != -EPERM && err != -ENODEV) 4688 BT_ERR("%s urb %p submission failed (%d)", 4689 data->hdev->name, urb, -err); 4690 kfree(urb->setup_packet); 4691 usb_unanchor_urb(urb); 4692 usb_free_urb(urb); 4693 break; 4694 } 4695 4696 data->tx_in_flight++; 4697 usb_free_urb(urb); 4698 } 4699 4700 /* Cleanup the rest deferred urbs. */ 4701 while ((urb = usb_get_from_anchor(&data->deferred))) { 4702 kfree(urb->setup_packet); 4703 usb_free_urb(urb); 4704 } 4705 } 4706 4707 static int btusb_resume(struct usb_interface *intf) 4708 { 4709 struct btusb_data *data = usb_get_intfdata(intf); 4710 struct hci_dev *hdev = data->hdev; 4711 int err = 0; 4712 4713 BT_DBG("intf %p", intf); 4714 4715 if (--data->suspend_count) 4716 return 0; 4717 4718 /* Disable only if not already disabled (keep it balanced) */ 4719 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4720 disable_irq(data->oob_wake_irq); 4721 disable_irq_wake(data->oob_wake_irq); 4722 } 4723 4724 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4725 goto done; 4726 4727 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4728 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4729 if (err < 0) { 4730 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4731 goto failed; 4732 } 4733 } 4734 4735 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4736 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4737 if (err < 0) { 4738 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4739 goto failed; 4740 } 4741 4742 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4743 } 4744 4745 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4746 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4747 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4748 else 4749 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4750 } 4751 4752 spin_lock_irq(&data->txlock); 4753 play_deferred(data); 4754 clear_bit(BTUSB_SUSPENDING, &data->flags); 4755 spin_unlock_irq(&data->txlock); 4756 schedule_work(&data->work); 4757 4758 return 0; 4759 4760 failed: 4761 usb_scuttle_anchored_urbs(&data->deferred); 4762 done: 4763 spin_lock_irq(&data->txlock); 4764 clear_bit(BTUSB_SUSPENDING, &data->flags); 4765 spin_unlock_irq(&data->txlock); 4766 4767 return err; 4768 } 4769 #endif 4770 4771 #ifdef CONFIG_DEV_COREDUMP 4772 static void btusb_coredump(struct device *dev) 4773 { 4774 struct btusb_data *data = dev_get_drvdata(dev); 4775 struct hci_dev *hdev = data->hdev; 4776 4777 if (hdev->dump.coredump) 4778 hdev->dump.coredump(hdev); 4779 } 4780 #endif 4781 4782 static struct usb_driver btusb_driver = { 4783 .name = "btusb", 4784 .probe = btusb_probe, 4785 .disconnect = btusb_disconnect, 4786 #ifdef CONFIG_PM 4787 .suspend = btusb_suspend, 4788 .resume = btusb_resume, 4789 #endif 4790 .id_table = btusb_table, 4791 .supports_autosuspend = 1, 4792 .disable_hub_initiated_lpm = 1, 4793 4794 #ifdef CONFIG_DEV_COREDUMP 4795 .drvwrap = { 4796 .driver = { 4797 .coredump = btusb_coredump, 4798 }, 4799 }, 4800 #endif 4801 }; 4802 4803 module_usb_driver(btusb_driver); 4804 4805 module_param(disable_scofix, bool, 0644); 4806 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4807 4808 module_param(force_scofix, bool, 0644); 4809 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4810 4811 module_param(enable_autosuspend, bool, 0644); 4812 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4813 4814 module_param(reset, bool, 0644); 4815 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4816 4817 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4818 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4819 MODULE_VERSION(VERSION); 4820 MODULE_LICENSE("GPL"); 4821