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 68 static const struct usb_device_id btusb_table[] = { 69 /* Generic Bluetooth USB device */ 70 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 71 72 /* Generic Bluetooth AMP device */ 73 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 74 75 /* Generic Bluetooth USB interface */ 76 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 77 78 /* Apple-specific (Broadcom) devices */ 79 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 80 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 81 82 /* MediaTek MT76x0E */ 83 { USB_DEVICE(0x0e8d, 0x763f) }, 84 85 /* Broadcom SoftSailing reporting vendor specific */ 86 { USB_DEVICE(0x0a5c, 0x21e1) }, 87 88 /* Apple MacBookPro 7,1 */ 89 { USB_DEVICE(0x05ac, 0x8213) }, 90 91 /* Apple iMac11,1 */ 92 { USB_DEVICE(0x05ac, 0x8215) }, 93 94 /* Apple MacBookPro6,2 */ 95 { USB_DEVICE(0x05ac, 0x8218) }, 96 97 /* Apple MacBookAir3,1, MacBookAir3,2 */ 98 { USB_DEVICE(0x05ac, 0x821b) }, 99 100 /* Apple MacBookAir4,1 */ 101 { USB_DEVICE(0x05ac, 0x821f) }, 102 103 /* Apple MacBookPro8,2 */ 104 { USB_DEVICE(0x05ac, 0x821a) }, 105 106 /* Apple MacMini5,1 */ 107 { USB_DEVICE(0x05ac, 0x8281) }, 108 109 /* AVM BlueFRITZ! USB v2.0 */ 110 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 111 112 /* Bluetooth Ultraport Module from IBM */ 113 { USB_DEVICE(0x04bf, 0x030a) }, 114 115 /* ALPS Modules with non-standard id */ 116 { USB_DEVICE(0x044e, 0x3001) }, 117 { USB_DEVICE(0x044e, 0x3002) }, 118 119 /* Ericsson with non-standard id */ 120 { USB_DEVICE(0x0bdb, 0x1002) }, 121 122 /* Canyon CN-BTU1 with HID interfaces */ 123 { USB_DEVICE(0x0c10, 0x0000) }, 124 125 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 126 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 127 128 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 129 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 130 .driver_info = BTUSB_BCM_PATCHRAM }, 131 132 /* Broadcom BCM920703 (HTC Vive) */ 133 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 134 .driver_info = BTUSB_BCM_PATCHRAM }, 135 136 /* Foxconn - Hon Hai */ 137 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 138 .driver_info = BTUSB_BCM_PATCHRAM }, 139 140 /* Lite-On Technology - Broadcom based */ 141 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 142 .driver_info = BTUSB_BCM_PATCHRAM }, 143 144 /* Broadcom devices with vendor specific id */ 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 146 .driver_info = BTUSB_BCM_PATCHRAM }, 147 148 /* ASUSTek Computer - Broadcom based */ 149 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 150 .driver_info = BTUSB_BCM_PATCHRAM }, 151 152 /* Belkin F8065bf - Broadcom based */ 153 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 154 .driver_info = BTUSB_BCM_PATCHRAM }, 155 156 /* IMC Networks - Broadcom based */ 157 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 158 .driver_info = BTUSB_BCM_PATCHRAM }, 159 160 /* Dell Computer - Broadcom based */ 161 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 162 .driver_info = BTUSB_BCM_PATCHRAM }, 163 164 /* Toshiba Corp - Broadcom based */ 165 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 166 .driver_info = BTUSB_BCM_PATCHRAM }, 167 168 /* Intel Bluetooth USB Bootloader (RAM module) */ 169 { USB_DEVICE(0x8087, 0x0a5a), 170 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 171 172 { } /* Terminating entry */ 173 }; 174 175 MODULE_DEVICE_TABLE(usb, btusb_table); 176 177 static const struct usb_device_id blacklist_table[] = { 178 /* CSR BlueCore devices */ 179 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 180 181 /* Broadcom BCM2033 without firmware */ 182 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 183 184 /* Broadcom BCM2045 devices */ 185 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 186 187 /* Atheros 3011 with sflash firmware */ 188 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 189 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 190 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 195 196 /* Atheros AR9285 Malbec with sflash firmware */ 197 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 198 199 /* Atheros 3012 with sflash firmware */ 200 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 201 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 250 251 /* Atheros AR5BBU12 with sflash firmware */ 252 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 253 254 /* Atheros AR5BBU12 with sflash firmware */ 255 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 256 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 257 258 /* QCA ROME chipset */ 259 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 260 BTUSB_WIDEBAND_SPEECH }, 261 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 262 BTUSB_WIDEBAND_SPEECH }, 263 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 264 BTUSB_WIDEBAND_SPEECH }, 265 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 266 BTUSB_WIDEBAND_SPEECH }, 267 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 268 BTUSB_WIDEBAND_SPEECH }, 269 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 270 BTUSB_WIDEBAND_SPEECH }, 271 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 272 BTUSB_WIDEBAND_SPEECH }, 273 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 274 BTUSB_WIDEBAND_SPEECH }, 275 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 276 BTUSB_WIDEBAND_SPEECH }, 277 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 278 BTUSB_WIDEBAND_SPEECH }, 279 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 280 BTUSB_WIDEBAND_SPEECH }, 281 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 282 BTUSB_WIDEBAND_SPEECH }, 283 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 284 BTUSB_WIDEBAND_SPEECH }, 285 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 286 BTUSB_WIDEBAND_SPEECH }, 287 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 288 BTUSB_WIDEBAND_SPEECH }, 289 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 290 BTUSB_WIDEBAND_SPEECH }, 291 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 292 BTUSB_WIDEBAND_SPEECH }, 293 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 294 BTUSB_WIDEBAND_SPEECH }, 295 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 296 BTUSB_WIDEBAND_SPEECH }, 297 298 /* QCA WCN6855 chipset */ 299 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 300 BTUSB_WIDEBAND_SPEECH | 301 BTUSB_VALID_LE_STATES }, 302 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 303 BTUSB_WIDEBAND_SPEECH | 304 BTUSB_VALID_LE_STATES }, 305 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 306 BTUSB_WIDEBAND_SPEECH | 307 BTUSB_VALID_LE_STATES }, 308 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 309 BTUSB_WIDEBAND_SPEECH | 310 BTUSB_VALID_LE_STATES }, 311 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 312 BTUSB_WIDEBAND_SPEECH | 313 BTUSB_VALID_LE_STATES }, 314 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 315 BTUSB_WIDEBAND_SPEECH | 316 BTUSB_VALID_LE_STATES }, 317 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 318 BTUSB_WIDEBAND_SPEECH | 319 BTUSB_VALID_LE_STATES }, 320 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 321 BTUSB_WIDEBAND_SPEECH | 322 BTUSB_VALID_LE_STATES }, 323 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 324 BTUSB_WIDEBAND_SPEECH | 325 BTUSB_VALID_LE_STATES }, 326 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 327 BTUSB_WIDEBAND_SPEECH | 328 BTUSB_VALID_LE_STATES }, 329 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 330 BTUSB_WIDEBAND_SPEECH | 331 BTUSB_VALID_LE_STATES }, 332 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 333 BTUSB_WIDEBAND_SPEECH | 334 BTUSB_VALID_LE_STATES }, 335 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 336 BTUSB_WIDEBAND_SPEECH | 337 BTUSB_VALID_LE_STATES }, 338 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 339 BTUSB_WIDEBAND_SPEECH | 340 BTUSB_VALID_LE_STATES }, 341 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 342 BTUSB_WIDEBAND_SPEECH | 343 BTUSB_VALID_LE_STATES }, 344 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 345 BTUSB_WIDEBAND_SPEECH | 346 BTUSB_VALID_LE_STATES }, 347 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 348 BTUSB_WIDEBAND_SPEECH | 349 BTUSB_VALID_LE_STATES }, 350 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 351 BTUSB_WIDEBAND_SPEECH | 352 BTUSB_VALID_LE_STATES }, 353 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 354 BTUSB_WIDEBAND_SPEECH | 355 BTUSB_VALID_LE_STATES }, 356 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 357 BTUSB_WIDEBAND_SPEECH | 358 BTUSB_VALID_LE_STATES }, 359 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 360 BTUSB_WIDEBAND_SPEECH | 361 BTUSB_VALID_LE_STATES }, 362 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 363 BTUSB_WIDEBAND_SPEECH | 364 BTUSB_VALID_LE_STATES }, 365 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 366 BTUSB_WIDEBAND_SPEECH | 367 BTUSB_VALID_LE_STATES }, 368 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 369 BTUSB_WIDEBAND_SPEECH | 370 BTUSB_VALID_LE_STATES }, 371 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 372 BTUSB_WIDEBAND_SPEECH | 373 BTUSB_VALID_LE_STATES }, 374 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 375 BTUSB_WIDEBAND_SPEECH | 376 BTUSB_VALID_LE_STATES }, 377 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 378 BTUSB_WIDEBAND_SPEECH | 379 BTUSB_VALID_LE_STATES }, 380 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 381 BTUSB_WIDEBAND_SPEECH | 382 BTUSB_VALID_LE_STATES }, 383 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 384 BTUSB_WIDEBAND_SPEECH | 385 BTUSB_VALID_LE_STATES }, 386 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 387 BTUSB_WIDEBAND_SPEECH | 388 BTUSB_VALID_LE_STATES }, 389 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 390 BTUSB_WIDEBAND_SPEECH | 391 BTUSB_VALID_LE_STATES }, 392 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 393 BTUSB_WIDEBAND_SPEECH | 394 BTUSB_VALID_LE_STATES }, 395 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 396 BTUSB_WIDEBAND_SPEECH | 397 BTUSB_VALID_LE_STATES }, 398 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 399 BTUSB_WIDEBAND_SPEECH | 400 BTUSB_VALID_LE_STATES }, 401 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 402 BTUSB_WIDEBAND_SPEECH | 403 BTUSB_VALID_LE_STATES }, 404 405 /* QCA WCN785x chipset */ 406 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 407 BTUSB_WIDEBAND_SPEECH | 408 BTUSB_VALID_LE_STATES }, 409 410 /* Broadcom BCM2035 */ 411 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 412 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 413 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 414 415 /* Broadcom BCM2045 */ 416 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 417 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 418 419 /* IBM/Lenovo ThinkPad with Broadcom chip */ 420 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 421 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 423 /* HP laptop with Broadcom chip */ 424 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 425 426 /* Dell laptop with Broadcom chip */ 427 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 428 429 /* Dell Wireless 370 and 410 devices */ 430 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 431 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 432 433 /* Belkin F8T012 and F8T013 devices */ 434 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 435 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 437 /* Asus WL-BTD202 device */ 438 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 439 440 /* Kensington Bluetooth USB adapter */ 441 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 442 443 /* RTX Telecom based adapters with buggy SCO support */ 444 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 445 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 446 447 /* CONWISE Technology based adapters with buggy SCO support */ 448 { USB_DEVICE(0x0e5e, 0x6622), 449 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 450 451 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 452 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 453 454 /* Digianswer devices */ 455 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 456 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 457 458 /* CSR BlueCore Bluetooth Sniffer */ 459 { USB_DEVICE(0x0a12, 0x0002), 460 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 461 462 /* Frontline ComProbe Bluetooth Sniffer */ 463 { USB_DEVICE(0x16d3, 0x0002), 464 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 465 466 /* Marvell Bluetooth devices */ 467 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 468 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 469 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 470 471 /* Intel Bluetooth devices */ 472 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 473 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 474 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 475 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 476 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 477 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 479 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 480 BTUSB_INTEL_NO_WBS_SUPPORT | 481 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 482 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 483 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 484 BTUSB_INTEL_NO_WBS_SUPPORT | 485 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 486 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 487 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 489 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 490 491 /* Other Intel Bluetooth devices */ 492 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 493 .driver_info = BTUSB_IGNORE }, 494 495 /* Realtek 8822CE Bluetooth devices */ 496 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 497 BTUSB_WIDEBAND_SPEECH }, 498 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 499 BTUSB_WIDEBAND_SPEECH }, 500 501 /* Realtek 8822CU Bluetooth devices */ 502 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 503 BTUSB_WIDEBAND_SPEECH }, 504 505 /* Realtek 8852AE Bluetooth devices */ 506 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 507 BTUSB_WIDEBAND_SPEECH }, 508 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 509 BTUSB_WIDEBAND_SPEECH }, 510 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 511 BTUSB_WIDEBAND_SPEECH }, 512 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 513 BTUSB_WIDEBAND_SPEECH }, 514 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 515 BTUSB_WIDEBAND_SPEECH }, 516 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 517 BTUSB_WIDEBAND_SPEECH }, 518 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 519 BTUSB_WIDEBAND_SPEECH }, 520 521 /* Realtek 8852CE Bluetooth devices */ 522 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 523 BTUSB_WIDEBAND_SPEECH }, 524 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 525 BTUSB_WIDEBAND_SPEECH }, 526 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 527 BTUSB_WIDEBAND_SPEECH }, 528 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 529 BTUSB_WIDEBAND_SPEECH }, 530 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 531 BTUSB_WIDEBAND_SPEECH }, 532 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 533 BTUSB_WIDEBAND_SPEECH }, 534 535 /* Realtek 8852BE Bluetooth devices */ 536 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 537 BTUSB_WIDEBAND_SPEECH }, 538 539 /* Realtek Bluetooth devices */ 540 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 541 .driver_info = BTUSB_REALTEK }, 542 543 /* MediaTek Bluetooth devices */ 544 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 545 .driver_info = BTUSB_MEDIATEK | 546 BTUSB_WIDEBAND_SPEECH | 547 BTUSB_VALID_LE_STATES }, 548 549 /* Additional MediaTek MT7615E Bluetooth devices */ 550 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 551 552 /* Additional MediaTek MT7663 Bluetooth devices */ 553 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 554 BTUSB_WIDEBAND_SPEECH | 555 BTUSB_VALID_LE_STATES }, 556 557 /* Additional MediaTek MT7668 Bluetooth devices */ 558 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 559 BTUSB_WIDEBAND_SPEECH | 560 BTUSB_VALID_LE_STATES }, 561 562 /* Additional MediaTek MT7921 Bluetooth devices */ 563 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 564 BTUSB_WIDEBAND_SPEECH | 565 BTUSB_VALID_LE_STATES }, 566 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 567 BTUSB_WIDEBAND_SPEECH | 568 BTUSB_VALID_LE_STATES }, 569 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 570 BTUSB_WIDEBAND_SPEECH | 571 BTUSB_VALID_LE_STATES }, 572 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 573 BTUSB_WIDEBAND_SPEECH | 574 BTUSB_VALID_LE_STATES }, 575 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 576 BTUSB_WIDEBAND_SPEECH | 577 BTUSB_VALID_LE_STATES }, 578 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 579 BTUSB_WIDEBAND_SPEECH | 580 BTUSB_VALID_LE_STATES }, 581 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 582 BTUSB_WIDEBAND_SPEECH | 583 BTUSB_VALID_LE_STATES }, 584 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 585 BTUSB_WIDEBAND_SPEECH | 586 BTUSB_VALID_LE_STATES }, 587 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 588 BTUSB_WIDEBAND_SPEECH | 589 BTUSB_VALID_LE_STATES }, 590 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 591 BTUSB_WIDEBAND_SPEECH | 592 BTUSB_VALID_LE_STATES }, 593 594 /* MediaTek MT7922A Bluetooth devices */ 595 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 596 BTUSB_WIDEBAND_SPEECH | 597 BTUSB_VALID_LE_STATES }, 598 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 599 BTUSB_WIDEBAND_SPEECH | 600 BTUSB_VALID_LE_STATES }, 601 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 602 BTUSB_WIDEBAND_SPEECH | 603 BTUSB_VALID_LE_STATES }, 604 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 605 BTUSB_WIDEBAND_SPEECH | 606 BTUSB_VALID_LE_STATES }, 607 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 608 BTUSB_WIDEBAND_SPEECH | 609 BTUSB_VALID_LE_STATES }, 610 611 /* Additional Realtek 8723AE Bluetooth devices */ 612 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 613 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 614 615 /* Additional Realtek 8723BE Bluetooth devices */ 616 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 617 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 618 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 619 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 620 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 621 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 622 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 623 624 /* Additional Realtek 8723BU Bluetooth devices */ 625 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 626 627 /* Additional Realtek 8723DE Bluetooth devices */ 628 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 629 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 630 631 /* Additional Realtek 8761BUV Bluetooth devices */ 632 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 633 BTUSB_WIDEBAND_SPEECH }, 634 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 635 BTUSB_WIDEBAND_SPEECH }, 636 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 637 BTUSB_WIDEBAND_SPEECH }, 638 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 639 BTUSB_WIDEBAND_SPEECH }, 640 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 641 BTUSB_WIDEBAND_SPEECH }, 642 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 643 BTUSB_WIDEBAND_SPEECH }, 644 645 /* Additional Realtek 8821AE Bluetooth devices */ 646 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 647 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 648 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 649 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 650 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 651 652 /* Additional Realtek 8822BE Bluetooth devices */ 653 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 654 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 655 656 /* Additional Realtek 8822CE Bluetooth devices */ 657 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 658 BTUSB_WIDEBAND_SPEECH }, 659 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 660 BTUSB_WIDEBAND_SPEECH }, 661 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 662 BTUSB_WIDEBAND_SPEECH }, 663 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 664 BTUSB_WIDEBAND_SPEECH }, 665 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 666 BTUSB_WIDEBAND_SPEECH }, 667 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 668 BTUSB_WIDEBAND_SPEECH }, 669 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 670 BTUSB_WIDEBAND_SPEECH }, 671 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 672 BTUSB_WIDEBAND_SPEECH }, 673 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 674 BTUSB_WIDEBAND_SPEECH }, 675 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 676 BTUSB_WIDEBAND_SPEECH }, 677 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 678 BTUSB_WIDEBAND_SPEECH }, 679 680 /* Silicon Wave based devices */ 681 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 682 683 { } /* Terminating entry */ 684 }; 685 686 /* The Bluetooth USB module build into some devices needs to be reset on resume, 687 * this is a problem with the platform (likely shutting off all power) not with 688 * the module itself. So we use a DMI list to match known broken platforms. 689 */ 690 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 691 { 692 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 693 .matches = { 694 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 695 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 696 }, 697 }, 698 { 699 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 700 .matches = { 701 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 702 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 703 }, 704 }, 705 { 706 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 707 .matches = { 708 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 709 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 710 }, 711 }, 712 {} 713 }; 714 715 #define BTUSB_MAX_ISOC_FRAMES 10 716 717 #define BTUSB_INTR_RUNNING 0 718 #define BTUSB_BULK_RUNNING 1 719 #define BTUSB_ISOC_RUNNING 2 720 #define BTUSB_SUSPENDING 3 721 #define BTUSB_DID_ISO_RESUME 4 722 #define BTUSB_BOOTLOADER 5 723 #define BTUSB_DOWNLOADING 6 724 #define BTUSB_FIRMWARE_LOADED 7 725 #define BTUSB_FIRMWARE_FAILED 8 726 #define BTUSB_BOOTING 9 727 #define BTUSB_DIAG_RUNNING 10 728 #define BTUSB_OOB_WAKE_ENABLED 11 729 #define BTUSB_HW_RESET_ACTIVE 12 730 #define BTUSB_TX_WAIT_VND_EVT 13 731 #define BTUSB_WAKEUP_AUTOSUSPEND 14 732 #define BTUSB_USE_ALT3_FOR_WBS 15 733 #define BTUSB_ALT6_CONTINUOUS_TX 16 734 735 struct btusb_data { 736 struct hci_dev *hdev; 737 struct usb_device *udev; 738 struct usb_interface *intf; 739 struct usb_interface *isoc; 740 struct usb_interface *diag; 741 unsigned isoc_ifnum; 742 743 unsigned long flags; 744 745 bool poll_sync; 746 int intr_interval; 747 struct work_struct work; 748 struct work_struct waker; 749 struct delayed_work rx_work; 750 751 struct sk_buff_head acl_q; 752 753 struct usb_anchor deferred; 754 struct usb_anchor tx_anchor; 755 int tx_in_flight; 756 spinlock_t txlock; 757 758 struct usb_anchor intr_anchor; 759 struct usb_anchor bulk_anchor; 760 struct usb_anchor isoc_anchor; 761 struct usb_anchor diag_anchor; 762 struct usb_anchor ctrl_anchor; 763 spinlock_t rxlock; 764 765 struct sk_buff *evt_skb; 766 struct sk_buff *acl_skb; 767 struct sk_buff *sco_skb; 768 769 struct usb_endpoint_descriptor *intr_ep; 770 struct usb_endpoint_descriptor *bulk_tx_ep; 771 struct usb_endpoint_descriptor *bulk_rx_ep; 772 struct usb_endpoint_descriptor *isoc_tx_ep; 773 struct usb_endpoint_descriptor *isoc_rx_ep; 774 struct usb_endpoint_descriptor *diag_tx_ep; 775 struct usb_endpoint_descriptor *diag_rx_ep; 776 777 struct gpio_desc *reset_gpio; 778 779 __u8 cmdreq_type; 780 __u8 cmdreq; 781 782 unsigned int sco_num; 783 unsigned int air_mode; 784 bool usb_alt6_packet_flow; 785 int isoc_altsetting; 786 int suspend_count; 787 788 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 789 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 790 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 791 792 int (*setup_on_usb)(struct hci_dev *hdev); 793 794 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 795 unsigned cmd_timeout_cnt; 796 }; 797 798 static void btusb_reset(struct hci_dev *hdev) 799 { 800 struct btusb_data *data; 801 int err; 802 803 if (hdev->reset) { 804 hdev->reset(hdev); 805 return; 806 } 807 808 data = hci_get_drvdata(hdev); 809 /* This is not an unbalanced PM reference since the device will reset */ 810 err = usb_autopm_get_interface(data->intf); 811 if (err) { 812 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 813 return; 814 } 815 816 bt_dev_err(hdev, "Resetting usb device."); 817 usb_queue_reset_device(data->intf); 818 } 819 820 static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 821 { 822 struct btusb_data *data = hci_get_drvdata(hdev); 823 struct gpio_desc *reset_gpio = data->reset_gpio; 824 825 if (++data->cmd_timeout_cnt < 5) 826 return; 827 828 if (!reset_gpio) { 829 btusb_reset(hdev); 830 return; 831 } 832 833 /* 834 * Toggle the hard reset line if the platform provides one. The reset 835 * is going to yank the device off the USB and then replug. So doing 836 * once is enough. The cleanup is handled correctly on the way out 837 * (standard USB disconnect), and the new device is detected cleanly 838 * and bound to the driver again like it should be. 839 */ 840 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 841 bt_dev_err(hdev, "last reset failed? Not resetting again"); 842 return; 843 } 844 845 bt_dev_err(hdev, "Initiating HW reset via gpio"); 846 gpiod_set_value_cansleep(reset_gpio, 1); 847 msleep(100); 848 gpiod_set_value_cansleep(reset_gpio, 0); 849 } 850 851 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) 852 { 853 struct btusb_data *data = hci_get_drvdata(hdev); 854 struct gpio_desc *reset_gpio = data->reset_gpio; 855 856 if (++data->cmd_timeout_cnt < 5) 857 return; 858 859 if (!reset_gpio) { 860 btusb_reset(hdev); 861 return; 862 } 863 864 /* Toggle the hard reset line. The Realtek device is going to 865 * yank itself off the USB and then replug. The cleanup is handled 866 * correctly on the way out (standard USB disconnect), and the new 867 * device is detected cleanly and bound to the driver again like 868 * it should be. 869 */ 870 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 871 bt_dev_err(hdev, "last reset failed? Not resetting again"); 872 return; 873 } 874 875 bt_dev_err(hdev, "Reset Realtek device via gpio"); 876 gpiod_set_value_cansleep(reset_gpio, 1); 877 msleep(200); 878 gpiod_set_value_cansleep(reset_gpio, 0); 879 } 880 881 static void btusb_qca_cmd_timeout(struct hci_dev *hdev) 882 { 883 struct btusb_data *data = hci_get_drvdata(hdev); 884 struct gpio_desc *reset_gpio = data->reset_gpio; 885 886 if (++data->cmd_timeout_cnt < 5) 887 return; 888 889 if (reset_gpio) { 890 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 891 892 /* Toggle the hard reset line. The qca bt device is going to 893 * yank itself off the USB and then replug. The cleanup is handled 894 * correctly on the way out (standard USB disconnect), and the new 895 * device is detected cleanly and bound to the driver again like 896 * it should be. 897 */ 898 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 899 bt_dev_err(hdev, "last reset failed? Not resetting again"); 900 return; 901 } 902 903 gpiod_set_value_cansleep(reset_gpio, 0); 904 msleep(200); 905 gpiod_set_value_cansleep(reset_gpio, 1); 906 907 return; 908 } 909 910 btusb_reset(hdev); 911 } 912 913 static inline void btusb_free_frags(struct btusb_data *data) 914 { 915 unsigned long flags; 916 917 spin_lock_irqsave(&data->rxlock, flags); 918 919 dev_kfree_skb_irq(data->evt_skb); 920 data->evt_skb = NULL; 921 922 dev_kfree_skb_irq(data->acl_skb); 923 data->acl_skb = NULL; 924 925 dev_kfree_skb_irq(data->sco_skb); 926 data->sco_skb = NULL; 927 928 spin_unlock_irqrestore(&data->rxlock, flags); 929 } 930 931 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 932 { 933 if (data->intr_interval) { 934 /* Trigger dequeue immediatelly if an event is received */ 935 schedule_delayed_work(&data->rx_work, 0); 936 } 937 938 return data->recv_event(data->hdev, skb); 939 } 940 941 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 942 { 943 struct sk_buff *skb; 944 unsigned long flags; 945 int err = 0; 946 947 spin_lock_irqsave(&data->rxlock, flags); 948 skb = data->evt_skb; 949 950 while (count) { 951 int len; 952 953 if (!skb) { 954 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 955 if (!skb) { 956 err = -ENOMEM; 957 break; 958 } 959 960 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 961 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 962 } 963 964 len = min_t(uint, hci_skb_expect(skb), count); 965 skb_put_data(skb, buffer, len); 966 967 count -= len; 968 buffer += len; 969 hci_skb_expect(skb) -= len; 970 971 if (skb->len == HCI_EVENT_HDR_SIZE) { 972 /* Complete event header */ 973 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 974 975 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 976 kfree_skb(skb); 977 skb = NULL; 978 979 err = -EILSEQ; 980 break; 981 } 982 } 983 984 if (!hci_skb_expect(skb)) { 985 /* Complete frame */ 986 btusb_recv_event(data, skb); 987 skb = NULL; 988 } 989 } 990 991 data->evt_skb = skb; 992 spin_unlock_irqrestore(&data->rxlock, flags); 993 994 return err; 995 } 996 997 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 998 { 999 /* Only queue ACL packet if intr_interval is set as it means 1000 * force_poll_sync has been enabled. 1001 */ 1002 if (!data->intr_interval) 1003 return data->recv_acl(data->hdev, skb); 1004 1005 skb_queue_tail(&data->acl_q, skb); 1006 schedule_delayed_work(&data->rx_work, data->intr_interval); 1007 1008 return 0; 1009 } 1010 1011 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1012 { 1013 struct sk_buff *skb; 1014 unsigned long flags; 1015 int err = 0; 1016 1017 spin_lock_irqsave(&data->rxlock, flags); 1018 skb = data->acl_skb; 1019 1020 while (count) { 1021 int len; 1022 1023 if (!skb) { 1024 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1025 if (!skb) { 1026 err = -ENOMEM; 1027 break; 1028 } 1029 1030 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1031 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1032 } 1033 1034 len = min_t(uint, hci_skb_expect(skb), count); 1035 skb_put_data(skb, buffer, len); 1036 1037 count -= len; 1038 buffer += len; 1039 hci_skb_expect(skb) -= len; 1040 1041 if (skb->len == HCI_ACL_HDR_SIZE) { 1042 __u16 handle = __le16_to_cpu(hci_acl_hdr(skb)->handle); 1043 __le16 dlen = hci_acl_hdr(skb)->dlen; 1044 __u8 type; 1045 1046 /* Complete ACL header */ 1047 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1048 1049 /* Detect if ISO packet has been sent over bulk */ 1050 if (hci_conn_num(data->hdev, ISO_LINK)) { 1051 type = hci_conn_lookup_type(data->hdev, 1052 hci_handle(handle)); 1053 if (type == ISO_LINK) 1054 hci_skb_pkt_type(skb) = HCI_ISODATA_PKT; 1055 } 1056 1057 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1058 kfree_skb(skb); 1059 skb = NULL; 1060 1061 err = -EILSEQ; 1062 break; 1063 } 1064 } 1065 1066 if (!hci_skb_expect(skb)) { 1067 /* Complete frame */ 1068 btusb_recv_acl(data, skb); 1069 skb = NULL; 1070 } 1071 } 1072 1073 data->acl_skb = skb; 1074 spin_unlock_irqrestore(&data->rxlock, flags); 1075 1076 return err; 1077 } 1078 1079 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1080 struct hci_sco_hdr *hdr) 1081 { 1082 __u16 handle; 1083 1084 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1085 // Can't validate, userspace controls everything. 1086 return true; 1087 1088 /* 1089 * USB isochronous transfers are not designed to be reliable and may 1090 * lose fragments. When this happens, the next first fragment 1091 * encountered might actually be a continuation fragment. 1092 * Validate the handle to detect it and drop it, or else the upper 1093 * layer will get garbage for a while. 1094 */ 1095 1096 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1097 1098 switch (hci_conn_lookup_type(hdev, handle)) { 1099 case SCO_LINK: 1100 case ESCO_LINK: 1101 return true; 1102 default: 1103 return false; 1104 } 1105 } 1106 1107 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1108 { 1109 struct sk_buff *skb; 1110 unsigned long flags; 1111 int err = 0; 1112 1113 spin_lock_irqsave(&data->rxlock, flags); 1114 skb = data->sco_skb; 1115 1116 while (count) { 1117 int len; 1118 1119 if (!skb) { 1120 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1121 if (!skb) { 1122 err = -ENOMEM; 1123 break; 1124 } 1125 1126 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1127 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1128 } 1129 1130 len = min_t(uint, hci_skb_expect(skb), count); 1131 skb_put_data(skb, buffer, len); 1132 1133 count -= len; 1134 buffer += len; 1135 hci_skb_expect(skb) -= len; 1136 1137 if (skb->len == HCI_SCO_HDR_SIZE) { 1138 /* Complete SCO header */ 1139 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1140 1141 hci_skb_expect(skb) = hdr->dlen; 1142 1143 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1144 !btusb_validate_sco_handle(data->hdev, hdr)) { 1145 kfree_skb(skb); 1146 skb = NULL; 1147 1148 err = -EILSEQ; 1149 break; 1150 } 1151 } 1152 1153 if (!hci_skb_expect(skb)) { 1154 /* Complete frame */ 1155 hci_recv_frame(data->hdev, skb); 1156 skb = NULL; 1157 } 1158 } 1159 1160 data->sco_skb = skb; 1161 spin_unlock_irqrestore(&data->rxlock, flags); 1162 1163 return err; 1164 } 1165 1166 static void btusb_intr_complete(struct urb *urb) 1167 { 1168 struct hci_dev *hdev = urb->context; 1169 struct btusb_data *data = hci_get_drvdata(hdev); 1170 int err; 1171 1172 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1173 urb->actual_length); 1174 1175 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1176 return; 1177 1178 if (urb->status == 0) { 1179 hdev->stat.byte_rx += urb->actual_length; 1180 1181 if (btusb_recv_intr(data, urb->transfer_buffer, 1182 urb->actual_length) < 0) { 1183 bt_dev_err(hdev, "corrupted event packet"); 1184 hdev->stat.err_rx++; 1185 } 1186 } else if (urb->status == -ENOENT) { 1187 /* Avoid suspend failed when usb_kill_urb */ 1188 return; 1189 } 1190 1191 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1192 return; 1193 1194 usb_mark_last_busy(data->udev); 1195 usb_anchor_urb(urb, &data->intr_anchor); 1196 1197 err = usb_submit_urb(urb, GFP_ATOMIC); 1198 if (err < 0) { 1199 /* -EPERM: urb is being killed; 1200 * -ENODEV: device got disconnected 1201 */ 1202 if (err != -EPERM && err != -ENODEV) 1203 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1204 urb, -err); 1205 if (err != -EPERM) 1206 hci_cmd_sync_cancel(hdev, -err); 1207 usb_unanchor_urb(urb); 1208 } 1209 } 1210 1211 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1212 { 1213 struct btusb_data *data = hci_get_drvdata(hdev); 1214 struct urb *urb; 1215 unsigned char *buf; 1216 unsigned int pipe; 1217 int err, size; 1218 1219 BT_DBG("%s", hdev->name); 1220 1221 if (!data->intr_ep) 1222 return -ENODEV; 1223 1224 urb = usb_alloc_urb(0, mem_flags); 1225 if (!urb) 1226 return -ENOMEM; 1227 1228 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1229 1230 buf = kmalloc(size, mem_flags); 1231 if (!buf) { 1232 usb_free_urb(urb); 1233 return -ENOMEM; 1234 } 1235 1236 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1237 1238 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1239 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1240 1241 urb->transfer_flags |= URB_FREE_BUFFER; 1242 1243 usb_anchor_urb(urb, &data->intr_anchor); 1244 1245 err = usb_submit_urb(urb, mem_flags); 1246 if (err < 0) { 1247 if (err != -EPERM && err != -ENODEV) 1248 bt_dev_err(hdev, "urb %p submission failed (%d)", 1249 urb, -err); 1250 if (err != -EPERM) 1251 hci_cmd_sync_cancel(hdev, -err); 1252 usb_unanchor_urb(urb); 1253 } 1254 1255 /* Only initialize intr_interval if URB poll sync is enabled */ 1256 if (!data->poll_sync) 1257 goto done; 1258 1259 /* The units are frames (milliseconds) for full and low speed devices, 1260 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1261 * devices. 1262 * 1263 * This is done once on open/resume so it shouldn't change even if 1264 * force_poll_sync changes. 1265 */ 1266 switch (urb->dev->speed) { 1267 case USB_SPEED_SUPER_PLUS: 1268 case USB_SPEED_SUPER: /* units are 125us */ 1269 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1270 break; 1271 default: 1272 data->intr_interval = msecs_to_jiffies(urb->interval); 1273 break; 1274 } 1275 1276 done: 1277 usb_free_urb(urb); 1278 1279 return err; 1280 } 1281 1282 static void btusb_bulk_complete(struct urb *urb) 1283 { 1284 struct hci_dev *hdev = urb->context; 1285 struct btusb_data *data = hci_get_drvdata(hdev); 1286 int err; 1287 1288 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1289 urb->actual_length); 1290 1291 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1292 return; 1293 1294 if (urb->status == 0) { 1295 hdev->stat.byte_rx += urb->actual_length; 1296 1297 if (data->recv_bulk(data, urb->transfer_buffer, 1298 urb->actual_length) < 0) { 1299 bt_dev_err(hdev, "corrupted ACL packet"); 1300 hdev->stat.err_rx++; 1301 } 1302 } else if (urb->status == -ENOENT) { 1303 /* Avoid suspend failed when usb_kill_urb */ 1304 return; 1305 } 1306 1307 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1308 return; 1309 1310 usb_anchor_urb(urb, &data->bulk_anchor); 1311 usb_mark_last_busy(data->udev); 1312 1313 err = usb_submit_urb(urb, GFP_ATOMIC); 1314 if (err < 0) { 1315 /* -EPERM: urb is being killed; 1316 * -ENODEV: device got disconnected 1317 */ 1318 if (err != -EPERM && err != -ENODEV) 1319 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1320 urb, -err); 1321 usb_unanchor_urb(urb); 1322 } 1323 } 1324 1325 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1326 { 1327 struct btusb_data *data = hci_get_drvdata(hdev); 1328 struct urb *urb; 1329 unsigned char *buf; 1330 unsigned int pipe; 1331 int err, size = HCI_MAX_FRAME_SIZE; 1332 1333 BT_DBG("%s", hdev->name); 1334 1335 if (!data->bulk_rx_ep) 1336 return -ENODEV; 1337 1338 urb = usb_alloc_urb(0, mem_flags); 1339 if (!urb) 1340 return -ENOMEM; 1341 1342 buf = kmalloc(size, mem_flags); 1343 if (!buf) { 1344 usb_free_urb(urb); 1345 return -ENOMEM; 1346 } 1347 1348 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1349 1350 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1351 btusb_bulk_complete, hdev); 1352 1353 urb->transfer_flags |= URB_FREE_BUFFER; 1354 1355 usb_mark_last_busy(data->udev); 1356 usb_anchor_urb(urb, &data->bulk_anchor); 1357 1358 err = usb_submit_urb(urb, mem_flags); 1359 if (err < 0) { 1360 if (err != -EPERM && err != -ENODEV) 1361 bt_dev_err(hdev, "urb %p submission failed (%d)", 1362 urb, -err); 1363 usb_unanchor_urb(urb); 1364 } 1365 1366 usb_free_urb(urb); 1367 1368 return err; 1369 } 1370 1371 static void btusb_isoc_complete(struct urb *urb) 1372 { 1373 struct hci_dev *hdev = urb->context; 1374 struct btusb_data *data = hci_get_drvdata(hdev); 1375 int i, err; 1376 1377 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1378 urb->actual_length); 1379 1380 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1381 return; 1382 1383 if (urb->status == 0) { 1384 for (i = 0; i < urb->number_of_packets; i++) { 1385 unsigned int offset = urb->iso_frame_desc[i].offset; 1386 unsigned int length = urb->iso_frame_desc[i].actual_length; 1387 1388 if (urb->iso_frame_desc[i].status) 1389 continue; 1390 1391 hdev->stat.byte_rx += length; 1392 1393 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1394 length) < 0) { 1395 bt_dev_err(hdev, "corrupted SCO packet"); 1396 hdev->stat.err_rx++; 1397 } 1398 } 1399 } else if (urb->status == -ENOENT) { 1400 /* Avoid suspend failed when usb_kill_urb */ 1401 return; 1402 } 1403 1404 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1405 return; 1406 1407 usb_anchor_urb(urb, &data->isoc_anchor); 1408 1409 err = usb_submit_urb(urb, GFP_ATOMIC); 1410 if (err < 0) { 1411 /* -EPERM: urb is being killed; 1412 * -ENODEV: device got disconnected 1413 */ 1414 if (err != -EPERM && err != -ENODEV) 1415 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1416 urb, -err); 1417 usb_unanchor_urb(urb); 1418 } 1419 } 1420 1421 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1422 int mtu, struct btusb_data *data) 1423 { 1424 int i = 0, offset = 0; 1425 unsigned int interval; 1426 1427 BT_DBG("len %d mtu %d", len, mtu); 1428 1429 /* For mSBC ALT 6 settings some chips need to transmit the data 1430 * continuously without the zero length of USB packets. 1431 */ 1432 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1433 goto ignore_usb_alt6_packet_flow; 1434 1435 /* For mSBC ALT 6 setting the host will send the packet at continuous 1436 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1437 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1438 * To maintain the rate we send 63bytes of usb packets alternatively for 1439 * 7ms and 8ms to maintain the rate as 7.5ms. 1440 */ 1441 if (data->usb_alt6_packet_flow) { 1442 interval = 7; 1443 data->usb_alt6_packet_flow = false; 1444 } else { 1445 interval = 6; 1446 data->usb_alt6_packet_flow = true; 1447 } 1448 1449 for (i = 0; i < interval; i++) { 1450 urb->iso_frame_desc[i].offset = offset; 1451 urb->iso_frame_desc[i].length = offset; 1452 } 1453 1454 ignore_usb_alt6_packet_flow: 1455 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1456 urb->iso_frame_desc[i].offset = offset; 1457 urb->iso_frame_desc[i].length = len; 1458 i++; 1459 } 1460 1461 urb->number_of_packets = i; 1462 } 1463 1464 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1465 { 1466 int i, offset = 0; 1467 1468 BT_DBG("len %d mtu %d", len, mtu); 1469 1470 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1471 i++, offset += mtu, len -= mtu) { 1472 urb->iso_frame_desc[i].offset = offset; 1473 urb->iso_frame_desc[i].length = mtu; 1474 } 1475 1476 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1477 urb->iso_frame_desc[i].offset = offset; 1478 urb->iso_frame_desc[i].length = len; 1479 i++; 1480 } 1481 1482 urb->number_of_packets = i; 1483 } 1484 1485 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1486 { 1487 struct btusb_data *data = hci_get_drvdata(hdev); 1488 struct urb *urb; 1489 unsigned char *buf; 1490 unsigned int pipe; 1491 int err, size; 1492 1493 BT_DBG("%s", hdev->name); 1494 1495 if (!data->isoc_rx_ep) 1496 return -ENODEV; 1497 1498 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1499 if (!urb) 1500 return -ENOMEM; 1501 1502 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1503 BTUSB_MAX_ISOC_FRAMES; 1504 1505 buf = kmalloc(size, mem_flags); 1506 if (!buf) { 1507 usb_free_urb(urb); 1508 return -ENOMEM; 1509 } 1510 1511 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1512 1513 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1514 hdev, data->isoc_rx_ep->bInterval); 1515 1516 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1517 1518 __fill_isoc_descriptor(urb, size, 1519 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1520 1521 usb_anchor_urb(urb, &data->isoc_anchor); 1522 1523 err = usb_submit_urb(urb, mem_flags); 1524 if (err < 0) { 1525 if (err != -EPERM && err != -ENODEV) 1526 bt_dev_err(hdev, "urb %p submission failed (%d)", 1527 urb, -err); 1528 usb_unanchor_urb(urb); 1529 } 1530 1531 usb_free_urb(urb); 1532 1533 return err; 1534 } 1535 1536 static void btusb_diag_complete(struct urb *urb) 1537 { 1538 struct hci_dev *hdev = urb->context; 1539 struct btusb_data *data = hci_get_drvdata(hdev); 1540 int err; 1541 1542 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1543 urb->actual_length); 1544 1545 if (urb->status == 0) { 1546 struct sk_buff *skb; 1547 1548 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1549 if (skb) { 1550 skb_put_data(skb, urb->transfer_buffer, 1551 urb->actual_length); 1552 hci_recv_diag(hdev, skb); 1553 } 1554 } else if (urb->status == -ENOENT) { 1555 /* Avoid suspend failed when usb_kill_urb */ 1556 return; 1557 } 1558 1559 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1560 return; 1561 1562 usb_anchor_urb(urb, &data->diag_anchor); 1563 usb_mark_last_busy(data->udev); 1564 1565 err = usb_submit_urb(urb, GFP_ATOMIC); 1566 if (err < 0) { 1567 /* -EPERM: urb is being killed; 1568 * -ENODEV: device got disconnected 1569 */ 1570 if (err != -EPERM && err != -ENODEV) 1571 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1572 urb, -err); 1573 usb_unanchor_urb(urb); 1574 } 1575 } 1576 1577 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1578 { 1579 struct btusb_data *data = hci_get_drvdata(hdev); 1580 struct urb *urb; 1581 unsigned char *buf; 1582 unsigned int pipe; 1583 int err, size = HCI_MAX_FRAME_SIZE; 1584 1585 BT_DBG("%s", hdev->name); 1586 1587 if (!data->diag_rx_ep) 1588 return -ENODEV; 1589 1590 urb = usb_alloc_urb(0, mem_flags); 1591 if (!urb) 1592 return -ENOMEM; 1593 1594 buf = kmalloc(size, mem_flags); 1595 if (!buf) { 1596 usb_free_urb(urb); 1597 return -ENOMEM; 1598 } 1599 1600 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1601 1602 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1603 btusb_diag_complete, hdev); 1604 1605 urb->transfer_flags |= URB_FREE_BUFFER; 1606 1607 usb_mark_last_busy(data->udev); 1608 usb_anchor_urb(urb, &data->diag_anchor); 1609 1610 err = usb_submit_urb(urb, mem_flags); 1611 if (err < 0) { 1612 if (err != -EPERM && err != -ENODEV) 1613 bt_dev_err(hdev, "urb %p submission failed (%d)", 1614 urb, -err); 1615 usb_unanchor_urb(urb); 1616 } 1617 1618 usb_free_urb(urb); 1619 1620 return err; 1621 } 1622 1623 static void btusb_tx_complete(struct urb *urb) 1624 { 1625 struct sk_buff *skb = urb->context; 1626 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1627 struct btusb_data *data = hci_get_drvdata(hdev); 1628 unsigned long flags; 1629 1630 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1631 urb->actual_length); 1632 1633 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1634 goto done; 1635 1636 if (!urb->status) { 1637 hdev->stat.byte_tx += urb->transfer_buffer_length; 1638 } else { 1639 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1640 hci_cmd_sync_cancel(hdev, -urb->status); 1641 hdev->stat.err_tx++; 1642 } 1643 1644 done: 1645 spin_lock_irqsave(&data->txlock, flags); 1646 data->tx_in_flight--; 1647 spin_unlock_irqrestore(&data->txlock, flags); 1648 1649 kfree(urb->setup_packet); 1650 1651 kfree_skb(skb); 1652 } 1653 1654 static void btusb_isoc_tx_complete(struct urb *urb) 1655 { 1656 struct sk_buff *skb = urb->context; 1657 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1658 1659 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1660 urb->actual_length); 1661 1662 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1663 goto done; 1664 1665 if (!urb->status) 1666 hdev->stat.byte_tx += urb->transfer_buffer_length; 1667 else 1668 hdev->stat.err_tx++; 1669 1670 done: 1671 kfree(urb->setup_packet); 1672 1673 kfree_skb(skb); 1674 } 1675 1676 static int btusb_open(struct hci_dev *hdev) 1677 { 1678 struct btusb_data *data = hci_get_drvdata(hdev); 1679 int err; 1680 1681 BT_DBG("%s", hdev->name); 1682 1683 err = usb_autopm_get_interface(data->intf); 1684 if (err < 0) 1685 return err; 1686 1687 /* Patching USB firmware files prior to starting any URBs of HCI path 1688 * It is more safe to use USB bulk channel for downloading USB patch 1689 */ 1690 if (data->setup_on_usb) { 1691 err = data->setup_on_usb(hdev); 1692 if (err < 0) 1693 goto setup_fail; 1694 } 1695 1696 data->intf->needs_remote_wakeup = 1; 1697 1698 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1699 goto done; 1700 1701 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1702 if (err < 0) 1703 goto failed; 1704 1705 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1706 if (err < 0) { 1707 usb_kill_anchored_urbs(&data->intr_anchor); 1708 goto failed; 1709 } 1710 1711 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1712 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1713 1714 if (data->diag) { 1715 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1716 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1717 } 1718 1719 done: 1720 usb_autopm_put_interface(data->intf); 1721 return 0; 1722 1723 failed: 1724 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1725 setup_fail: 1726 usb_autopm_put_interface(data->intf); 1727 return err; 1728 } 1729 1730 static void btusb_stop_traffic(struct btusb_data *data) 1731 { 1732 usb_kill_anchored_urbs(&data->intr_anchor); 1733 usb_kill_anchored_urbs(&data->bulk_anchor); 1734 usb_kill_anchored_urbs(&data->isoc_anchor); 1735 usb_kill_anchored_urbs(&data->diag_anchor); 1736 usb_kill_anchored_urbs(&data->ctrl_anchor); 1737 } 1738 1739 static int btusb_close(struct hci_dev *hdev) 1740 { 1741 struct btusb_data *data = hci_get_drvdata(hdev); 1742 int err; 1743 1744 BT_DBG("%s", hdev->name); 1745 1746 cancel_delayed_work(&data->rx_work); 1747 cancel_work_sync(&data->work); 1748 cancel_work_sync(&data->waker); 1749 1750 skb_queue_purge(&data->acl_q); 1751 1752 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1753 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1754 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1755 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1756 1757 btusb_stop_traffic(data); 1758 btusb_free_frags(data); 1759 1760 err = usb_autopm_get_interface(data->intf); 1761 if (err < 0) 1762 goto failed; 1763 1764 data->intf->needs_remote_wakeup = 0; 1765 1766 /* Enable remote wake up for auto-suspend */ 1767 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1768 data->intf->needs_remote_wakeup = 1; 1769 1770 usb_autopm_put_interface(data->intf); 1771 1772 failed: 1773 usb_scuttle_anchored_urbs(&data->deferred); 1774 return 0; 1775 } 1776 1777 static int btusb_flush(struct hci_dev *hdev) 1778 { 1779 struct btusb_data *data = hci_get_drvdata(hdev); 1780 1781 BT_DBG("%s", hdev->name); 1782 1783 cancel_delayed_work(&data->rx_work); 1784 1785 skb_queue_purge(&data->acl_q); 1786 1787 usb_kill_anchored_urbs(&data->tx_anchor); 1788 btusb_free_frags(data); 1789 1790 return 0; 1791 } 1792 1793 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1794 { 1795 struct btusb_data *data = hci_get_drvdata(hdev); 1796 struct usb_ctrlrequest *dr; 1797 struct urb *urb; 1798 unsigned int pipe; 1799 1800 urb = usb_alloc_urb(0, GFP_KERNEL); 1801 if (!urb) 1802 return ERR_PTR(-ENOMEM); 1803 1804 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1805 if (!dr) { 1806 usb_free_urb(urb); 1807 return ERR_PTR(-ENOMEM); 1808 } 1809 1810 dr->bRequestType = data->cmdreq_type; 1811 dr->bRequest = data->cmdreq; 1812 dr->wIndex = 0; 1813 dr->wValue = 0; 1814 dr->wLength = __cpu_to_le16(skb->len); 1815 1816 pipe = usb_sndctrlpipe(data->udev, 0x00); 1817 1818 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1819 skb->data, skb->len, btusb_tx_complete, skb); 1820 1821 skb->dev = (void *)hdev; 1822 1823 return urb; 1824 } 1825 1826 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1827 { 1828 struct btusb_data *data = hci_get_drvdata(hdev); 1829 struct urb *urb; 1830 unsigned int pipe; 1831 1832 if (!data->bulk_tx_ep) 1833 return ERR_PTR(-ENODEV); 1834 1835 urb = usb_alloc_urb(0, GFP_KERNEL); 1836 if (!urb) 1837 return ERR_PTR(-ENOMEM); 1838 1839 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1840 1841 usb_fill_bulk_urb(urb, data->udev, pipe, 1842 skb->data, skb->len, btusb_tx_complete, skb); 1843 1844 skb->dev = (void *)hdev; 1845 1846 return urb; 1847 } 1848 1849 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1850 { 1851 struct btusb_data *data = hci_get_drvdata(hdev); 1852 struct urb *urb; 1853 unsigned int pipe; 1854 1855 if (!data->isoc_tx_ep) 1856 return ERR_PTR(-ENODEV); 1857 1858 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1859 if (!urb) 1860 return ERR_PTR(-ENOMEM); 1861 1862 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1863 1864 usb_fill_int_urb(urb, data->udev, pipe, 1865 skb->data, skb->len, btusb_isoc_tx_complete, 1866 skb, data->isoc_tx_ep->bInterval); 1867 1868 urb->transfer_flags = URB_ISO_ASAP; 1869 1870 if (data->isoc_altsetting == 6) 1871 __fill_isoc_descriptor_msbc(urb, skb->len, 1872 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 1873 data); 1874 else 1875 __fill_isoc_descriptor(urb, skb->len, 1876 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1877 skb->dev = (void *)hdev; 1878 1879 return urb; 1880 } 1881 1882 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1883 { 1884 struct btusb_data *data = hci_get_drvdata(hdev); 1885 int err; 1886 1887 usb_anchor_urb(urb, &data->tx_anchor); 1888 1889 err = usb_submit_urb(urb, GFP_KERNEL); 1890 if (err < 0) { 1891 if (err != -EPERM && err != -ENODEV) 1892 bt_dev_err(hdev, "urb %p submission failed (%d)", 1893 urb, -err); 1894 kfree(urb->setup_packet); 1895 usb_unanchor_urb(urb); 1896 } else { 1897 usb_mark_last_busy(data->udev); 1898 } 1899 1900 usb_free_urb(urb); 1901 return err; 1902 } 1903 1904 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1905 { 1906 struct btusb_data *data = hci_get_drvdata(hdev); 1907 unsigned long flags; 1908 bool suspending; 1909 1910 spin_lock_irqsave(&data->txlock, flags); 1911 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1912 if (!suspending) 1913 data->tx_in_flight++; 1914 spin_unlock_irqrestore(&data->txlock, flags); 1915 1916 if (!suspending) 1917 return submit_tx_urb(hdev, urb); 1918 1919 usb_anchor_urb(urb, &data->deferred); 1920 schedule_work(&data->waker); 1921 1922 usb_free_urb(urb); 1923 return 0; 1924 } 1925 1926 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1927 { 1928 struct urb *urb; 1929 1930 BT_DBG("%s", hdev->name); 1931 1932 switch (hci_skb_pkt_type(skb)) { 1933 case HCI_COMMAND_PKT: 1934 urb = alloc_ctrl_urb(hdev, skb); 1935 if (IS_ERR(urb)) 1936 return PTR_ERR(urb); 1937 1938 hdev->stat.cmd_tx++; 1939 return submit_or_queue_tx_urb(hdev, urb); 1940 1941 case HCI_ACLDATA_PKT: 1942 urb = alloc_bulk_urb(hdev, skb); 1943 if (IS_ERR(urb)) 1944 return PTR_ERR(urb); 1945 1946 hdev->stat.acl_tx++; 1947 return submit_or_queue_tx_urb(hdev, urb); 1948 1949 case HCI_SCODATA_PKT: 1950 if (hci_conn_num(hdev, SCO_LINK) < 1) 1951 return -ENODEV; 1952 1953 urb = alloc_isoc_urb(hdev, skb); 1954 if (IS_ERR(urb)) 1955 return PTR_ERR(urb); 1956 1957 hdev->stat.sco_tx++; 1958 return submit_tx_urb(hdev, urb); 1959 1960 case HCI_ISODATA_PKT: 1961 urb = alloc_bulk_urb(hdev, skb); 1962 if (IS_ERR(urb)) 1963 return PTR_ERR(urb); 1964 1965 return submit_or_queue_tx_urb(hdev, urb); 1966 } 1967 1968 return -EILSEQ; 1969 } 1970 1971 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1972 { 1973 struct btusb_data *data = hci_get_drvdata(hdev); 1974 1975 BT_DBG("%s evt %d", hdev->name, evt); 1976 1977 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1978 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1979 data->air_mode = evt; 1980 schedule_work(&data->work); 1981 } 1982 } 1983 1984 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1985 { 1986 struct btusb_data *data = hci_get_drvdata(hdev); 1987 struct usb_interface *intf = data->isoc; 1988 struct usb_endpoint_descriptor *ep_desc; 1989 int i, err; 1990 1991 if (!data->isoc) 1992 return -ENODEV; 1993 1994 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 1995 if (err < 0) { 1996 bt_dev_err(hdev, "setting interface failed (%d)", -err); 1997 return err; 1998 } 1999 2000 data->isoc_altsetting = altsetting; 2001 2002 data->isoc_tx_ep = NULL; 2003 data->isoc_rx_ep = NULL; 2004 2005 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2006 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2007 2008 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2009 data->isoc_tx_ep = ep_desc; 2010 continue; 2011 } 2012 2013 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2014 data->isoc_rx_ep = ep_desc; 2015 continue; 2016 } 2017 } 2018 2019 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2020 bt_dev_err(hdev, "invalid SCO descriptors"); 2021 return -ENODEV; 2022 } 2023 2024 return 0; 2025 } 2026 2027 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2028 { 2029 struct btusb_data *data = hci_get_drvdata(hdev); 2030 int err; 2031 2032 if (data->isoc_altsetting != new_alts) { 2033 unsigned long flags; 2034 2035 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2036 usb_kill_anchored_urbs(&data->isoc_anchor); 2037 2038 /* When isochronous alternate setting needs to be 2039 * changed, because SCO connection has been added 2040 * or removed, a packet fragment may be left in the 2041 * reassembling state. This could lead to wrongly 2042 * assembled fragments. 2043 * 2044 * Clear outstanding fragment when selecting a new 2045 * alternate setting. 2046 */ 2047 spin_lock_irqsave(&data->rxlock, flags); 2048 kfree_skb(data->sco_skb); 2049 data->sco_skb = NULL; 2050 spin_unlock_irqrestore(&data->rxlock, flags); 2051 2052 err = __set_isoc_interface(hdev, new_alts); 2053 if (err < 0) 2054 return err; 2055 } 2056 2057 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2058 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2059 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2060 else 2061 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2062 } 2063 2064 return 0; 2065 } 2066 2067 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2068 int alt) 2069 { 2070 struct usb_interface *intf = data->isoc; 2071 int i; 2072 2073 BT_DBG("Looking for Alt no :%d", alt); 2074 2075 if (!intf) 2076 return NULL; 2077 2078 for (i = 0; i < intf->num_altsetting; i++) { 2079 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2080 return &intf->altsetting[i]; 2081 } 2082 2083 return NULL; 2084 } 2085 2086 static void btusb_work(struct work_struct *work) 2087 { 2088 struct btusb_data *data = container_of(work, struct btusb_data, work); 2089 struct hci_dev *hdev = data->hdev; 2090 int new_alts = 0; 2091 int err; 2092 2093 if (data->sco_num > 0) { 2094 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2095 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2096 if (err < 0) { 2097 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2098 usb_kill_anchored_urbs(&data->isoc_anchor); 2099 return; 2100 } 2101 2102 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2103 } 2104 2105 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2106 if (hdev->voice_setting & 0x0020) { 2107 static const int alts[3] = { 2, 4, 5 }; 2108 2109 new_alts = alts[data->sco_num - 1]; 2110 } else { 2111 new_alts = data->sco_num; 2112 } 2113 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2114 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2115 * many adapters do not support it. Alt 1 appears to 2116 * work for all adapters that do not have alt 6, and 2117 * which work with WBS at all. Some devices prefer 2118 * alt 3 (HCI payload >= 60 Bytes let air packet 2119 * data satisfy 60 bytes), requiring 2120 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2121 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2122 */ 2123 if (btusb_find_altsetting(data, 6)) 2124 new_alts = 6; 2125 else if (btusb_find_altsetting(data, 3) && 2126 hdev->sco_mtu >= 72 && 2127 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2128 new_alts = 3; 2129 else 2130 new_alts = 1; 2131 } 2132 2133 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2134 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2135 } else { 2136 usb_kill_anchored_urbs(&data->isoc_anchor); 2137 2138 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2139 __set_isoc_interface(hdev, 0); 2140 2141 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2142 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2143 } 2144 } 2145 2146 static void btusb_waker(struct work_struct *work) 2147 { 2148 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2149 int err; 2150 2151 err = usb_autopm_get_interface(data->intf); 2152 if (err < 0) 2153 return; 2154 2155 usb_autopm_put_interface(data->intf); 2156 } 2157 2158 static void btusb_rx_work(struct work_struct *work) 2159 { 2160 struct btusb_data *data = container_of(work, struct btusb_data, 2161 rx_work.work); 2162 struct sk_buff *skb; 2163 2164 /* Dequeue ACL data received during the interval */ 2165 while ((skb = skb_dequeue(&data->acl_q))) 2166 data->recv_acl(data->hdev, skb); 2167 } 2168 2169 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2170 { 2171 struct sk_buff *skb; 2172 u8 val = 0x00; 2173 2174 BT_DBG("%s", hdev->name); 2175 2176 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2177 if (IS_ERR(skb)) 2178 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2179 else 2180 kfree_skb(skb); 2181 2182 return 0; 2183 } 2184 2185 static int btusb_setup_csr(struct hci_dev *hdev) 2186 { 2187 struct btusb_data *data = hci_get_drvdata(hdev); 2188 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2189 struct hci_rp_read_local_version *rp; 2190 struct sk_buff *skb; 2191 bool is_fake = false; 2192 int ret; 2193 2194 BT_DBG("%s", hdev->name); 2195 2196 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2197 HCI_INIT_TIMEOUT); 2198 if (IS_ERR(skb)) { 2199 int err = PTR_ERR(skb); 2200 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2201 return err; 2202 } 2203 2204 rp = skb_pull_data(skb, sizeof(*rp)); 2205 if (!rp) { 2206 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2207 kfree_skb(skb); 2208 return -EIO; 2209 } 2210 2211 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2212 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2213 2214 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2215 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2216 le16_to_cpu(rp->manufacturer)); 2217 2218 /* Detect a wide host of Chinese controllers that aren't CSR. 2219 * 2220 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2221 * 2222 * The main thing they have in common is that these are really popular low-cost 2223 * options that support newer Bluetooth versions but rely on heavy VID/PID 2224 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2225 * 2226 * We detect actual CSR devices by checking that the HCI manufacturer code 2227 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2228 * HCI rev values always match. As they both store the firmware number. 2229 */ 2230 if (le16_to_cpu(rp->manufacturer) != 10 || 2231 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2232 is_fake = true; 2233 2234 /* Known legit CSR firmware build numbers and their supported BT versions: 2235 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2236 * - 1.2 (0x2) -> 0x04d9, 0x0529 2237 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2238 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2239 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2240 * 2241 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2242 * support BT 1.1 only; so it's a dead giveaway when some 2243 * third-party BT 4.0 dongle reuses it. 2244 */ 2245 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2246 rp->hci_ver > BLUETOOTH_VER_1_1) 2247 is_fake = true; 2248 2249 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2250 rp->hci_ver > BLUETOOTH_VER_1_2) 2251 is_fake = true; 2252 2253 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2254 rp->hci_ver > BLUETOOTH_VER_2_0) 2255 is_fake = true; 2256 2257 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2258 rp->hci_ver > BLUETOOTH_VER_2_1) 2259 is_fake = true; 2260 2261 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2262 rp->hci_ver > BLUETOOTH_VER_4_0) 2263 is_fake = true; 2264 2265 /* Other clones which beat all the above checks */ 2266 else if (bcdDevice == 0x0134 && 2267 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2268 rp->hci_ver == BLUETOOTH_VER_2_0) 2269 is_fake = true; 2270 2271 if (is_fake) { 2272 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2273 2274 /* Generally these clones have big discrepancies between 2275 * advertised features and what's actually supported. 2276 * Probably will need to be expanded in the future; 2277 * without these the controller will lock up. 2278 */ 2279 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2280 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2281 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2282 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2283 2284 /* Clear the reset quirk since this is not an actual 2285 * early Bluetooth 1.1 device from CSR. 2286 */ 2287 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2288 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2289 2290 /* 2291 * Special workaround for these BT 4.0 chip clones, and potentially more: 2292 * 2293 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2294 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2295 * 2296 * These controllers are really messed-up. 2297 * 2298 * 1. Their bulk RX endpoint will never report any data unless 2299 * the device was suspended at least once (yes, really). 2300 * 2. They will not wakeup when autosuspended and receiving data 2301 * on their bulk RX endpoint from e.g. a keyboard or mouse 2302 * (IOW remote-wakeup support is broken for the bulk endpoint). 2303 * 2304 * To fix 1. enable runtime-suspend, force-suspend the 2305 * HCI and then wake-it up by disabling runtime-suspend. 2306 * 2307 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2308 * will still be autosuspended when it is not open. 2309 * 2310 * -- 2311 * 2312 * Because these are widespread problems we prefer generic solutions; so 2313 * apply this initialization quirk to every controller that gets here, 2314 * it should be harmless. The alternative is to not work at all. 2315 */ 2316 pm_runtime_allow(&data->udev->dev); 2317 2318 ret = pm_runtime_suspend(&data->udev->dev); 2319 if (ret >= 0) 2320 msleep(200); 2321 else 2322 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2323 2324 pm_runtime_forbid(&data->udev->dev); 2325 2326 device_set_wakeup_capable(&data->udev->dev, false); 2327 2328 /* Re-enable autosuspend if this was requested */ 2329 if (enable_autosuspend) 2330 usb_enable_autosuspend(data->udev); 2331 } 2332 2333 kfree_skb(skb); 2334 2335 return 0; 2336 } 2337 2338 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2339 { 2340 struct sk_buff *skb; 2341 struct hci_event_hdr *hdr; 2342 struct hci_ev_cmd_complete *evt; 2343 2344 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2345 if (!skb) 2346 return -ENOMEM; 2347 2348 hdr = skb_put(skb, sizeof(*hdr)); 2349 hdr->evt = HCI_EV_CMD_COMPLETE; 2350 hdr->plen = sizeof(*evt) + 1; 2351 2352 evt = skb_put(skb, sizeof(*evt)); 2353 evt->ncmd = 0x01; 2354 evt->opcode = cpu_to_le16(opcode); 2355 2356 skb_put_u8(skb, 0x00); 2357 2358 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2359 2360 return hci_recv_frame(hdev, skb); 2361 } 2362 2363 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2364 int count) 2365 { 2366 struct hci_dev *hdev = data->hdev; 2367 2368 /* When the device is in bootloader mode, then it can send 2369 * events via the bulk endpoint. These events are treated the 2370 * same way as the ones received from the interrupt endpoint. 2371 */ 2372 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2373 return btusb_recv_intr(data, buffer, count); 2374 2375 return btusb_recv_bulk(data, buffer, count); 2376 } 2377 2378 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 2379 { 2380 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2381 struct hci_event_hdr *hdr = (void *)skb->data; 2382 2383 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 2384 hdr->plen > 0) { 2385 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 2386 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 2387 2388 switch (skb->data[2]) { 2389 case 0x02: 2390 /* When switching to the operational firmware 2391 * the device sends a vendor specific event 2392 * indicating that the bootup completed. 2393 */ 2394 btintel_bootup(hdev, ptr, len); 2395 break; 2396 case 0x06: 2397 /* When the firmware loading completes the 2398 * device sends out a vendor specific event 2399 * indicating the result of the firmware 2400 * loading. 2401 */ 2402 btintel_secure_send_result(hdev, ptr, len); 2403 break; 2404 } 2405 } 2406 } 2407 2408 return hci_recv_frame(hdev, skb); 2409 } 2410 2411 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2412 { 2413 struct urb *urb; 2414 2415 BT_DBG("%s", hdev->name); 2416 2417 switch (hci_skb_pkt_type(skb)) { 2418 case HCI_COMMAND_PKT: 2419 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2420 struct hci_command_hdr *cmd = (void *)skb->data; 2421 __u16 opcode = le16_to_cpu(cmd->opcode); 2422 2423 /* When in bootloader mode and the command 0xfc09 2424 * is received, it needs to be send down the 2425 * bulk endpoint. So allocate a bulk URB instead. 2426 */ 2427 if (opcode == 0xfc09) 2428 urb = alloc_bulk_urb(hdev, skb); 2429 else 2430 urb = alloc_ctrl_urb(hdev, skb); 2431 2432 /* When the 0xfc01 command is issued to boot into 2433 * the operational firmware, it will actually not 2434 * send a command complete event. To keep the flow 2435 * control working inject that event here. 2436 */ 2437 if (opcode == 0xfc01) 2438 inject_cmd_complete(hdev, opcode); 2439 } else { 2440 urb = alloc_ctrl_urb(hdev, skb); 2441 } 2442 if (IS_ERR(urb)) 2443 return PTR_ERR(urb); 2444 2445 hdev->stat.cmd_tx++; 2446 return submit_or_queue_tx_urb(hdev, urb); 2447 2448 case HCI_ACLDATA_PKT: 2449 urb = alloc_bulk_urb(hdev, skb); 2450 if (IS_ERR(urb)) 2451 return PTR_ERR(urb); 2452 2453 hdev->stat.acl_tx++; 2454 return submit_or_queue_tx_urb(hdev, urb); 2455 2456 case HCI_SCODATA_PKT: 2457 if (hci_conn_num(hdev, SCO_LINK) < 1) 2458 return -ENODEV; 2459 2460 urb = alloc_isoc_urb(hdev, skb); 2461 if (IS_ERR(urb)) 2462 return PTR_ERR(urb); 2463 2464 hdev->stat.sco_tx++; 2465 return submit_tx_urb(hdev, urb); 2466 2467 case HCI_ISODATA_PKT: 2468 urb = alloc_bulk_urb(hdev, skb); 2469 if (IS_ERR(urb)) 2470 return PTR_ERR(urb); 2471 2472 return submit_or_queue_tx_urb(hdev, urb); 2473 } 2474 2475 return -EILSEQ; 2476 } 2477 2478 static int btusb_setup_realtek(struct hci_dev *hdev) 2479 { 2480 struct btusb_data *data = hci_get_drvdata(hdev); 2481 int ret; 2482 2483 ret = btrtl_setup_realtek(hdev); 2484 2485 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2486 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2487 2488 return ret; 2489 } 2490 2491 /* UHW CR mapping */ 2492 #define MTK_BT_MISC 0x70002510 2493 #define MTK_BT_SUBSYS_RST 0x70002610 2494 #define MTK_UDMA_INT_STA_BT 0x74000024 2495 #define MTK_UDMA_INT_STA_BT1 0x74000308 2496 #define MTK_BT_WDT_STATUS 0x740003A0 2497 #define MTK_EP_RST_OPT 0x74011890 2498 #define MTK_EP_RST_IN_OUT_OPT 0x00010001 2499 #define MTK_BT_RST_DONE 0x00000100 2500 #define MTK_BT_RESET_WAIT_MS 100 2501 #define MTK_BT_RESET_NUM_TRIES 10 2502 2503 static void btusb_mtk_wmt_recv(struct urb *urb) 2504 { 2505 struct hci_dev *hdev = urb->context; 2506 struct btusb_data *data = hci_get_drvdata(hdev); 2507 struct sk_buff *skb; 2508 int err; 2509 2510 if (urb->status == 0 && urb->actual_length > 0) { 2511 hdev->stat.byte_rx += urb->actual_length; 2512 2513 /* WMT event shouldn't be fragmented and the size should be 2514 * less than HCI_WMT_MAX_EVENT_SIZE. 2515 */ 2516 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC); 2517 if (!skb) { 2518 hdev->stat.err_rx++; 2519 kfree(urb->setup_packet); 2520 return; 2521 } 2522 2523 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2524 skb_put_data(skb, urb->transfer_buffer, urb->actual_length); 2525 2526 /* When someone waits for the WMT event, the skb is being cloned 2527 * and being processed the events from there then. 2528 */ 2529 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) { 2530 data->evt_skb = skb_clone(skb, GFP_ATOMIC); 2531 if (!data->evt_skb) { 2532 kfree_skb(skb); 2533 kfree(urb->setup_packet); 2534 return; 2535 } 2536 } 2537 2538 err = hci_recv_frame(hdev, skb); 2539 if (err < 0) { 2540 kfree_skb(data->evt_skb); 2541 data->evt_skb = NULL; 2542 kfree(urb->setup_packet); 2543 return; 2544 } 2545 2546 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT, 2547 &data->flags)) { 2548 /* Barrier to sync with other CPUs */ 2549 smp_mb__after_atomic(); 2550 wake_up_bit(&data->flags, 2551 BTUSB_TX_WAIT_VND_EVT); 2552 } 2553 kfree(urb->setup_packet); 2554 return; 2555 } else if (urb->status == -ENOENT) { 2556 /* Avoid suspend failed when usb_kill_urb */ 2557 return; 2558 } 2559 2560 usb_mark_last_busy(data->udev); 2561 2562 /* The URB complete handler is still called with urb->actual_length = 0 2563 * when the event is not available, so we should keep re-submitting 2564 * URB until WMT event returns, Also, It's necessary to wait some time 2565 * between the two consecutive control URBs to relax the target device 2566 * to generate the event. Otherwise, the WMT event cannot return from 2567 * the device successfully. 2568 */ 2569 udelay(500); 2570 2571 usb_anchor_urb(urb, &data->ctrl_anchor); 2572 err = usb_submit_urb(urb, GFP_ATOMIC); 2573 if (err < 0) { 2574 kfree(urb->setup_packet); 2575 /* -EPERM: urb is being killed; 2576 * -ENODEV: device got disconnected 2577 */ 2578 if (err != -EPERM && err != -ENODEV) 2579 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2580 urb, -err); 2581 usb_unanchor_urb(urb); 2582 } 2583 } 2584 2585 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev) 2586 { 2587 struct btusb_data *data = hci_get_drvdata(hdev); 2588 struct usb_ctrlrequest *dr; 2589 unsigned char *buf; 2590 int err, size = 64; 2591 unsigned int pipe; 2592 struct urb *urb; 2593 2594 urb = usb_alloc_urb(0, GFP_KERNEL); 2595 if (!urb) 2596 return -ENOMEM; 2597 2598 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2599 if (!dr) { 2600 usb_free_urb(urb); 2601 return -ENOMEM; 2602 } 2603 2604 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN; 2605 dr->bRequest = 1; 2606 dr->wIndex = cpu_to_le16(0); 2607 dr->wValue = cpu_to_le16(48); 2608 dr->wLength = cpu_to_le16(size); 2609 2610 buf = kmalloc(size, GFP_KERNEL); 2611 if (!buf) { 2612 kfree(dr); 2613 usb_free_urb(urb); 2614 return -ENOMEM; 2615 } 2616 2617 pipe = usb_rcvctrlpipe(data->udev, 0); 2618 2619 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2620 buf, size, btusb_mtk_wmt_recv, hdev); 2621 2622 urb->transfer_flags |= URB_FREE_BUFFER; 2623 2624 usb_anchor_urb(urb, &data->ctrl_anchor); 2625 err = usb_submit_urb(urb, GFP_KERNEL); 2626 if (err < 0) { 2627 if (err != -EPERM && err != -ENODEV) 2628 bt_dev_err(hdev, "urb %p submission failed (%d)", 2629 urb, -err); 2630 usb_unanchor_urb(urb); 2631 } 2632 2633 usb_free_urb(urb); 2634 2635 return err; 2636 } 2637 2638 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev, 2639 struct btmtk_hci_wmt_params *wmt_params) 2640 { 2641 struct btusb_data *data = hci_get_drvdata(hdev); 2642 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc; 2643 u32 hlen, status = BTMTK_WMT_INVALID; 2644 struct btmtk_hci_wmt_evt *wmt_evt; 2645 struct btmtk_hci_wmt_cmd *wc; 2646 struct btmtk_wmt_hdr *hdr; 2647 int err; 2648 2649 /* Send the WMT command and wait until the WMT event returns */ 2650 hlen = sizeof(*hdr) + wmt_params->dlen; 2651 if (hlen > 255) 2652 return -EINVAL; 2653 2654 wc = kzalloc(hlen, GFP_KERNEL); 2655 if (!wc) 2656 return -ENOMEM; 2657 2658 hdr = &wc->hdr; 2659 hdr->dir = 1; 2660 hdr->op = wmt_params->op; 2661 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1); 2662 hdr->flag = wmt_params->flag; 2663 memcpy(wc->data, wmt_params->data, wmt_params->dlen); 2664 2665 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2666 2667 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling, 2668 * it needs constantly polling control pipe until the host received the 2669 * WMT event, thus, we should require to specifically acquire PM counter 2670 * on the USB to prevent the interface from entering auto suspended 2671 * while WMT cmd/event in progress. 2672 */ 2673 err = usb_autopm_get_interface(data->intf); 2674 if (err < 0) 2675 goto err_free_wc; 2676 2677 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc); 2678 2679 if (err < 0) { 2680 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2681 usb_autopm_put_interface(data->intf); 2682 goto err_free_wc; 2683 } 2684 2685 /* Submit control IN URB on demand to process the WMT event */ 2686 err = btusb_mtk_submit_wmt_recv_urb(hdev); 2687 2688 usb_autopm_put_interface(data->intf); 2689 2690 if (err < 0) 2691 goto err_free_wc; 2692 2693 /* The vendor specific WMT commands are all answered by a vendor 2694 * specific event and will have the Command Status or Command 2695 * Complete as with usual HCI command flow control. 2696 * 2697 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT 2698 * state to be cleared. The driver specific event receive routine 2699 * will clear that state and with that indicate completion of the 2700 * WMT command. 2701 */ 2702 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT, 2703 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT); 2704 if (err == -EINTR) { 2705 bt_dev_err(hdev, "Execution of wmt command interrupted"); 2706 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2707 goto err_free_wc; 2708 } 2709 2710 if (err) { 2711 bt_dev_err(hdev, "Execution of wmt command timed out"); 2712 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2713 err = -ETIMEDOUT; 2714 goto err_free_wc; 2715 } 2716 2717 /* Parse and handle the return WMT event */ 2718 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; 2719 if (wmt_evt->whdr.op != hdr->op) { 2720 bt_dev_err(hdev, "Wrong op received %d expected %d", 2721 wmt_evt->whdr.op, hdr->op); 2722 err = -EIO; 2723 goto err_free_skb; 2724 } 2725 2726 switch (wmt_evt->whdr.op) { 2727 case BTMTK_WMT_SEMAPHORE: 2728 if (wmt_evt->whdr.flag == 2) 2729 status = BTMTK_WMT_PATCH_UNDONE; 2730 else 2731 status = BTMTK_WMT_PATCH_DONE; 2732 break; 2733 case BTMTK_WMT_FUNC_CTRL: 2734 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; 2735 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) 2736 status = BTMTK_WMT_ON_DONE; 2737 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) 2738 status = BTMTK_WMT_ON_PROGRESS; 2739 else 2740 status = BTMTK_WMT_ON_UNDONE; 2741 break; 2742 case BTMTK_WMT_PATCH_DWNLD: 2743 if (wmt_evt->whdr.flag == 2) 2744 status = BTMTK_WMT_PATCH_DONE; 2745 else if (wmt_evt->whdr.flag == 1) 2746 status = BTMTK_WMT_PATCH_PROGRESS; 2747 else 2748 status = BTMTK_WMT_PATCH_UNDONE; 2749 break; 2750 } 2751 2752 if (wmt_params->status) 2753 *wmt_params->status = status; 2754 2755 err_free_skb: 2756 kfree_skb(data->evt_skb); 2757 data->evt_skb = NULL; 2758 err_free_wc: 2759 kfree(wc); 2760 return err; 2761 } 2762 2763 static int btusb_mtk_func_query(struct hci_dev *hdev) 2764 { 2765 struct btmtk_hci_wmt_params wmt_params; 2766 int status, err; 2767 u8 param = 0; 2768 2769 /* Query whether the function is enabled */ 2770 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2771 wmt_params.flag = 4; 2772 wmt_params.dlen = sizeof(param); 2773 wmt_params.data = ¶m; 2774 wmt_params.status = &status; 2775 2776 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2777 if (err < 0) { 2778 bt_dev_err(hdev, "Failed to query function status (%d)", err); 2779 return err; 2780 } 2781 2782 return status; 2783 } 2784 2785 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) 2786 { 2787 struct hci_dev *hdev = data->hdev; 2788 int pipe, err; 2789 void *buf; 2790 2791 buf = kzalloc(4, GFP_KERNEL); 2792 if (!buf) 2793 return -ENOMEM; 2794 2795 put_unaligned_le32(val, buf); 2796 2797 pipe = usb_sndctrlpipe(data->udev, 0); 2798 err = usb_control_msg(data->udev, pipe, 0x02, 2799 0x5E, 2800 reg >> 16, reg & 0xffff, 2801 buf, 4, USB_CTRL_SET_TIMEOUT); 2802 if (err < 0) { 2803 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); 2804 goto err_free_buf; 2805 } 2806 2807 err_free_buf: 2808 kfree(buf); 2809 2810 return err; 2811 } 2812 2813 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2814 { 2815 struct hci_dev *hdev = data->hdev; 2816 int pipe, err; 2817 void *buf; 2818 2819 buf = kzalloc(4, GFP_KERNEL); 2820 if (!buf) 2821 return -ENOMEM; 2822 2823 pipe = usb_rcvctrlpipe(data->udev, 0); 2824 err = usb_control_msg(data->udev, pipe, 0x01, 2825 0xDE, 2826 reg >> 16, reg & 0xffff, 2827 buf, 4, USB_CTRL_SET_TIMEOUT); 2828 if (err < 0) { 2829 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); 2830 goto err_free_buf; 2831 } 2832 2833 *val = get_unaligned_le32(buf); 2834 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); 2835 2836 err_free_buf: 2837 kfree(buf); 2838 2839 return err; 2840 } 2841 2842 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2843 { 2844 int pipe, err, size = sizeof(u32); 2845 void *buf; 2846 2847 buf = kzalloc(size, GFP_KERNEL); 2848 if (!buf) 2849 return -ENOMEM; 2850 2851 pipe = usb_rcvctrlpipe(data->udev, 0); 2852 err = usb_control_msg(data->udev, pipe, 0x63, 2853 USB_TYPE_VENDOR | USB_DIR_IN, 2854 reg >> 16, reg & 0xffff, 2855 buf, size, USB_CTRL_SET_TIMEOUT); 2856 if (err < 0) 2857 goto err_free_buf; 2858 2859 *val = get_unaligned_le32(buf); 2860 2861 err_free_buf: 2862 kfree(buf); 2863 2864 return err; 2865 } 2866 2867 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) 2868 { 2869 return btusb_mtk_reg_read(data, reg, id); 2870 } 2871 2872 static int btusb_mtk_setup(struct hci_dev *hdev) 2873 { 2874 struct btusb_data *data = hci_get_drvdata(hdev); 2875 struct btmtk_hci_wmt_params wmt_params; 2876 ktime_t calltime, delta, rettime; 2877 struct btmtk_tci_sleep tci_sleep; 2878 unsigned long long duration; 2879 struct sk_buff *skb; 2880 const char *fwname; 2881 int err, status; 2882 u32 dev_id; 2883 char fw_bin_name[64]; 2884 u32 fw_version = 0; 2885 u8 param; 2886 2887 calltime = ktime_get(); 2888 2889 err = btusb_mtk_id_get(data, 0x80000008, &dev_id); 2890 if (err < 0) { 2891 bt_dev_err(hdev, "Failed to get device id (%d)", err); 2892 return err; 2893 } 2894 2895 if (!dev_id) { 2896 err = btusb_mtk_id_get(data, 0x70010200, &dev_id); 2897 if (err < 0) { 2898 bt_dev_err(hdev, "Failed to get device id (%d)", err); 2899 return err; 2900 } 2901 err = btusb_mtk_id_get(data, 0x80021004, &fw_version); 2902 if (err < 0) { 2903 bt_dev_err(hdev, "Failed to get fw version (%d)", err); 2904 return err; 2905 } 2906 } 2907 2908 switch (dev_id) { 2909 case 0x7663: 2910 fwname = FIRMWARE_MT7663; 2911 break; 2912 case 0x7668: 2913 fwname = FIRMWARE_MT7668; 2914 break; 2915 case 0x7922: 2916 case 0x7961: 2917 snprintf(fw_bin_name, sizeof(fw_bin_name), 2918 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 2919 dev_id & 0xffff, (fw_version & 0xff) + 1); 2920 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name, 2921 btusb_mtk_hci_wmt_sync); 2922 if (err < 0) { 2923 bt_dev_err(hdev, "Failed to set up firmware (%d)", err); 2924 return err; 2925 } 2926 2927 /* It's Device EndPoint Reset Option Register */ 2928 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 2929 2930 /* Enable Bluetooth protocol */ 2931 param = 1; 2932 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2933 wmt_params.flag = 0; 2934 wmt_params.dlen = sizeof(param); 2935 wmt_params.data = ¶m; 2936 wmt_params.status = NULL; 2937 2938 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2939 if (err < 0) { 2940 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 2941 return err; 2942 } 2943 2944 hci_set_msft_opcode(hdev, 0xFD30); 2945 hci_set_aosp_capable(hdev); 2946 goto done; 2947 default: 2948 bt_dev_err(hdev, "Unsupported hardware variant (%08x)", 2949 dev_id); 2950 return -ENODEV; 2951 } 2952 2953 /* Query whether the firmware is already download */ 2954 wmt_params.op = BTMTK_WMT_SEMAPHORE; 2955 wmt_params.flag = 1; 2956 wmt_params.dlen = 0; 2957 wmt_params.data = NULL; 2958 wmt_params.status = &status; 2959 2960 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2961 if (err < 0) { 2962 bt_dev_err(hdev, "Failed to query firmware status (%d)", err); 2963 return err; 2964 } 2965 2966 if (status == BTMTK_WMT_PATCH_DONE) { 2967 bt_dev_info(hdev, "firmware already downloaded"); 2968 goto ignore_setup_fw; 2969 } 2970 2971 /* Setup a firmware which the device definitely requires */ 2972 err = btmtk_setup_firmware(hdev, fwname, 2973 btusb_mtk_hci_wmt_sync); 2974 if (err < 0) 2975 return err; 2976 2977 ignore_setup_fw: 2978 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, 2979 status < 0 || status != BTMTK_WMT_ON_PROGRESS, 2980 2000, 5000000); 2981 /* -ETIMEDOUT happens */ 2982 if (err < 0) 2983 return err; 2984 2985 /* The other errors happen in btusb_mtk_func_query */ 2986 if (status < 0) 2987 return status; 2988 2989 if (status == BTMTK_WMT_ON_DONE) { 2990 bt_dev_info(hdev, "function already on"); 2991 goto ignore_func_on; 2992 } 2993 2994 /* Enable Bluetooth protocol */ 2995 param = 1; 2996 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2997 wmt_params.flag = 0; 2998 wmt_params.dlen = sizeof(param); 2999 wmt_params.data = ¶m; 3000 wmt_params.status = NULL; 3001 3002 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3003 if (err < 0) { 3004 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3005 return err; 3006 } 3007 3008 ignore_func_on: 3009 /* Apply the low power environment setup */ 3010 tci_sleep.mode = 0x5; 3011 tci_sleep.duration = cpu_to_le16(0x640); 3012 tci_sleep.host_duration = cpu_to_le16(0x640); 3013 tci_sleep.host_wakeup_pin = 0; 3014 tci_sleep.time_compensation = 0; 3015 3016 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, 3017 HCI_INIT_TIMEOUT); 3018 if (IS_ERR(skb)) { 3019 err = PTR_ERR(skb); 3020 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); 3021 return err; 3022 } 3023 kfree_skb(skb); 3024 3025 done: 3026 rettime = ktime_get(); 3027 delta = ktime_sub(rettime, calltime); 3028 duration = (unsigned long long)ktime_to_ns(delta) >> 10; 3029 3030 bt_dev_info(hdev, "Device setup in %llu usecs", duration); 3031 3032 return 0; 3033 } 3034 3035 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3036 { 3037 struct btmtk_hci_wmt_params wmt_params; 3038 u8 param = 0; 3039 int err; 3040 3041 /* Disable the device */ 3042 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3043 wmt_params.flag = 0; 3044 wmt_params.dlen = sizeof(param); 3045 wmt_params.data = ¶m; 3046 wmt_params.status = NULL; 3047 3048 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3049 if (err < 0) { 3050 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3051 return err; 3052 } 3053 3054 return 0; 3055 } 3056 3057 static void btusb_mtk_cmd_timeout(struct hci_dev *hdev) 3058 { 3059 struct btusb_data *data = hci_get_drvdata(hdev); 3060 u32 val; 3061 int err, retry = 0; 3062 3063 /* It's MediaTek specific bluetooth reset mechanism via USB */ 3064 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 3065 bt_dev_err(hdev, "last reset failed? Not resetting again"); 3066 return; 3067 } 3068 3069 err = usb_autopm_get_interface(data->intf); 3070 if (err < 0) 3071 return; 3072 3073 btusb_stop_traffic(data); 3074 usb_kill_anchored_urbs(&data->tx_anchor); 3075 3076 /* It's Device EndPoint Reset Option Register */ 3077 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); 3078 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3079 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); 3080 3081 /* Reset the bluetooth chip via USB interface. */ 3082 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); 3083 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3084 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3085 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3086 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3087 /* MT7921 need to delay 20ms between toggle reset bit */ 3088 msleep(20); 3089 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); 3090 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); 3091 3092 /* Poll the register until reset is completed */ 3093 do { 3094 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); 3095 if (val & MTK_BT_RST_DONE) { 3096 bt_dev_dbg(hdev, "Bluetooth Reset Successfully"); 3097 break; 3098 } 3099 3100 bt_dev_dbg(hdev, "Polling Bluetooth Reset CR"); 3101 retry++; 3102 msleep(MTK_BT_RESET_WAIT_MS); 3103 } while (retry < MTK_BT_RESET_NUM_TRIES); 3104 3105 btusb_mtk_id_get(data, 0x70010200, &val); 3106 if (!val) 3107 bt_dev_err(hdev, "Can't get device id, subsys reset fail."); 3108 3109 usb_queue_reset_device(data->intf); 3110 3111 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); 3112 } 3113 3114 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3115 { 3116 struct btusb_data *data = hci_get_drvdata(hdev); 3117 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); 3118 3119 switch (handle) { 3120 case 0xfc6f: /* Firmware dump from device */ 3121 /* When the firmware hangs, the device can no longer 3122 * suspend and thus disable auto-suspend. 3123 */ 3124 usb_disable_autosuspend(data->udev); 3125 fallthrough; 3126 case 0x05ff: /* Firmware debug logging 1 */ 3127 case 0x05fe: /* Firmware debug logging 2 */ 3128 return hci_recv_diag(hdev, skb); 3129 } 3130 3131 return hci_recv_frame(hdev, skb); 3132 } 3133 3134 #ifdef CONFIG_PM 3135 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3136 static int marvell_config_oob_wake(struct hci_dev *hdev) 3137 { 3138 struct sk_buff *skb; 3139 struct btusb_data *data = hci_get_drvdata(hdev); 3140 struct device *dev = &data->udev->dev; 3141 u16 pin, gap, opcode; 3142 int ret; 3143 u8 cmd[5]; 3144 3145 /* Move on if no wakeup pin specified */ 3146 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3147 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3148 return 0; 3149 3150 /* Vendor specific command to configure a GPIO as wake-up pin */ 3151 opcode = hci_opcode_pack(0x3F, 0x59); 3152 cmd[0] = opcode & 0xFF; 3153 cmd[1] = opcode >> 8; 3154 cmd[2] = 2; /* length of parameters that follow */ 3155 cmd[3] = pin; 3156 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3157 3158 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3159 if (!skb) { 3160 bt_dev_err(hdev, "%s: No memory", __func__); 3161 return -ENOMEM; 3162 } 3163 3164 skb_put_data(skb, cmd, sizeof(cmd)); 3165 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3166 3167 ret = btusb_send_frame(hdev, skb); 3168 if (ret) { 3169 bt_dev_err(hdev, "%s: configuration failed", __func__); 3170 kfree_skb(skb); 3171 return ret; 3172 } 3173 3174 return 0; 3175 } 3176 #endif 3177 3178 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3179 const bdaddr_t *bdaddr) 3180 { 3181 struct sk_buff *skb; 3182 u8 buf[8]; 3183 long ret; 3184 3185 buf[0] = 0xfe; 3186 buf[1] = sizeof(bdaddr_t); 3187 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3188 3189 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3190 if (IS_ERR(skb)) { 3191 ret = PTR_ERR(skb); 3192 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3193 ret); 3194 return ret; 3195 } 3196 kfree_skb(skb); 3197 3198 return 0; 3199 } 3200 3201 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3202 const bdaddr_t *bdaddr) 3203 { 3204 struct sk_buff *skb; 3205 u8 buf[10]; 3206 long ret; 3207 3208 buf[0] = 0x01; 3209 buf[1] = 0x01; 3210 buf[2] = 0x00; 3211 buf[3] = sizeof(bdaddr_t); 3212 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3213 3214 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3215 if (IS_ERR(skb)) { 3216 ret = PTR_ERR(skb); 3217 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3218 return ret; 3219 } 3220 kfree_skb(skb); 3221 3222 return 0; 3223 } 3224 3225 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3226 const bdaddr_t *bdaddr) 3227 { 3228 struct sk_buff *skb; 3229 u8 buf[6]; 3230 long ret; 3231 3232 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3233 3234 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3235 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3236 if (IS_ERR(skb)) { 3237 ret = PTR_ERR(skb); 3238 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3239 return ret; 3240 } 3241 kfree_skb(skb); 3242 3243 return 0; 3244 } 3245 3246 #define QCA_DFU_PACKET_LEN 4096 3247 3248 #define QCA_GET_TARGET_VERSION 0x09 3249 #define QCA_CHECK_STATUS 0x05 3250 #define QCA_DFU_DOWNLOAD 0x01 3251 3252 #define QCA_SYSCFG_UPDATED 0x40 3253 #define QCA_PATCH_UPDATED 0x80 3254 #define QCA_DFU_TIMEOUT 3000 3255 #define QCA_FLAG_MULTI_NVM 0x80 3256 #define QCA_BT_RESET_WAIT_MS 100 3257 3258 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3259 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3260 3261 struct qca_version { 3262 __le32 rom_version; 3263 __le32 patch_version; 3264 __le32 ram_version; 3265 __u8 chip_id; 3266 __u8 platform_id; 3267 __le16 flag; 3268 __u8 reserved[4]; 3269 } __packed; 3270 3271 struct qca_rampatch_version { 3272 __le16 rom_version_high; 3273 __le16 rom_version_low; 3274 __le16 patch_version; 3275 } __packed; 3276 3277 struct qca_device_info { 3278 u32 rom_version; 3279 u8 rampatch_hdr; /* length of header in rampatch */ 3280 u8 nvm_hdr; /* length of header in NVM */ 3281 u8 ver_offset; /* offset of version structure in rampatch */ 3282 }; 3283 3284 static const struct qca_device_info qca_devices_table[] = { 3285 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3286 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3287 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3288 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3289 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3290 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3291 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3292 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3293 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3294 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3295 }; 3296 3297 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3298 void *data, u16 size) 3299 { 3300 int pipe, err; 3301 u8 *buf; 3302 3303 buf = kmalloc(size, GFP_KERNEL); 3304 if (!buf) 3305 return -ENOMEM; 3306 3307 /* Found some of USB hosts have IOT issues with ours so that we should 3308 * not wait until HCI layer is ready. 3309 */ 3310 pipe = usb_rcvctrlpipe(udev, 0); 3311 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3312 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3313 if (err < 0) { 3314 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3315 goto done; 3316 } 3317 3318 memcpy(data, buf, size); 3319 3320 done: 3321 kfree(buf); 3322 3323 return err; 3324 } 3325 3326 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3327 const struct firmware *firmware, 3328 size_t hdr_size) 3329 { 3330 struct btusb_data *btdata = hci_get_drvdata(hdev); 3331 struct usb_device *udev = btdata->udev; 3332 size_t count, size, sent = 0; 3333 int pipe, len, err; 3334 u8 *buf; 3335 3336 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3337 if (!buf) 3338 return -ENOMEM; 3339 3340 count = firmware->size; 3341 3342 size = min_t(size_t, count, hdr_size); 3343 memcpy(buf, firmware->data, size); 3344 3345 /* USB patches should go down to controller through USB path 3346 * because binary format fits to go down through USB channel. 3347 * USB control path is for patching headers and USB bulk is for 3348 * patch body. 3349 */ 3350 pipe = usb_sndctrlpipe(udev, 0); 3351 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3352 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3353 if (err < 0) { 3354 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3355 goto done; 3356 } 3357 3358 sent += size; 3359 count -= size; 3360 3361 /* ep2 need time to switch from function acl to function dfu, 3362 * so we add 20ms delay here. 3363 */ 3364 msleep(20); 3365 3366 while (count) { 3367 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3368 3369 memcpy(buf, firmware->data + sent, size); 3370 3371 pipe = usb_sndbulkpipe(udev, 0x02); 3372 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3373 QCA_DFU_TIMEOUT); 3374 if (err < 0) { 3375 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3376 sent, firmware->size, err); 3377 break; 3378 } 3379 3380 if (size != len) { 3381 bt_dev_err(hdev, "Failed to get bulk buffer"); 3382 err = -EILSEQ; 3383 break; 3384 } 3385 3386 sent += size; 3387 count -= size; 3388 } 3389 3390 done: 3391 kfree(buf); 3392 return err; 3393 } 3394 3395 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3396 struct qca_version *ver, 3397 const struct qca_device_info *info) 3398 { 3399 struct qca_rampatch_version *rver; 3400 const struct firmware *fw; 3401 u32 ver_rom, ver_patch, rver_rom; 3402 u16 rver_rom_low, rver_rom_high, rver_patch; 3403 char fwname[64]; 3404 int err; 3405 3406 ver_rom = le32_to_cpu(ver->rom_version); 3407 ver_patch = le32_to_cpu(ver->patch_version); 3408 3409 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3410 3411 err = request_firmware(&fw, fwname, &hdev->dev); 3412 if (err) { 3413 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3414 fwname, err); 3415 return err; 3416 } 3417 3418 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3419 3420 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3421 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3422 rver_patch = le16_to_cpu(rver->patch_version); 3423 3424 if (ver_rom & ~0xffffU) { 3425 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3426 rver_rom = rver_rom_high << 16 | rver_rom_low; 3427 } else { 3428 rver_rom = rver_rom_low; 3429 } 3430 3431 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3432 "firmware rome 0x%x build 0x%x", 3433 rver_rom, rver_patch, ver_rom, ver_patch); 3434 3435 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3436 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3437 err = -EINVAL; 3438 goto done; 3439 } 3440 3441 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3442 3443 done: 3444 release_firmware(fw); 3445 3446 return err; 3447 } 3448 3449 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3450 const struct qca_version *ver) 3451 { 3452 u32 rom_version = le32_to_cpu(ver->rom_version); 3453 u16 flag = le16_to_cpu(ver->flag); 3454 3455 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3456 /* The board_id should be split into two bytes 3457 * The 1st byte is chip ID, and the 2nd byte is platform ID 3458 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3459 * we have several platforms, and platform IDs are continuously added 3460 * Platform ID: 3461 * 0x00 is for Mobile 3462 * 0x01 is for X86 3463 * 0x02 is for Automotive 3464 * 0x03 is for Consumer electronic 3465 */ 3466 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3467 const char *variant; 3468 3469 switch (le32_to_cpu(ver->ram_version)) { 3470 case WCN6855_2_0_RAM_VERSION_GF: 3471 case WCN6855_2_1_RAM_VERSION_GF: 3472 variant = "_gf"; 3473 break; 3474 default: 3475 variant = ""; 3476 break; 3477 } 3478 3479 if (board_id == 0) { 3480 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3481 rom_version, variant); 3482 } else { 3483 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3484 rom_version, variant, board_id); 3485 } 3486 } else { 3487 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3488 rom_version); 3489 } 3490 3491 } 3492 3493 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3494 struct qca_version *ver, 3495 const struct qca_device_info *info) 3496 { 3497 const struct firmware *fw; 3498 char fwname[64]; 3499 int err; 3500 3501 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3502 3503 err = request_firmware(&fw, fwname, &hdev->dev); 3504 if (err) { 3505 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3506 fwname, err); 3507 return err; 3508 } 3509 3510 bt_dev_info(hdev, "using NVM file: %s", fwname); 3511 3512 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3513 3514 release_firmware(fw); 3515 3516 return err; 3517 } 3518 3519 /* identify the ROM version and check whether patches are needed */ 3520 static bool btusb_qca_need_patch(struct usb_device *udev) 3521 { 3522 struct qca_version ver; 3523 3524 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3525 sizeof(ver)) < 0) 3526 return false; 3527 /* only low ROM versions need patches */ 3528 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3529 } 3530 3531 static int btusb_setup_qca(struct hci_dev *hdev) 3532 { 3533 struct btusb_data *btdata = hci_get_drvdata(hdev); 3534 struct usb_device *udev = btdata->udev; 3535 const struct qca_device_info *info = NULL; 3536 struct qca_version ver; 3537 u32 ver_rom; 3538 u8 status; 3539 int i, err; 3540 3541 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3542 sizeof(ver)); 3543 if (err < 0) 3544 return err; 3545 3546 ver_rom = le32_to_cpu(ver.rom_version); 3547 3548 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3549 if (ver_rom == qca_devices_table[i].rom_version) 3550 info = &qca_devices_table[i]; 3551 } 3552 if (!info) { 3553 /* If the rom_version is not matched in the qca_devices_table 3554 * and the high ROM version is not zero, we assume this chip no 3555 * need to load the rampatch and nvm. 3556 */ 3557 if (ver_rom & ~0xffffU) 3558 return 0; 3559 3560 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3561 return -ENODEV; 3562 } 3563 3564 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3565 sizeof(status)); 3566 if (err < 0) 3567 return err; 3568 3569 if (!(status & QCA_PATCH_UPDATED)) { 3570 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3571 if (err < 0) 3572 return err; 3573 } 3574 3575 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3576 sizeof(ver)); 3577 if (err < 0) 3578 return err; 3579 3580 if (!(status & QCA_SYSCFG_UPDATED)) { 3581 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3582 if (err < 0) 3583 return err; 3584 3585 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3586 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3587 * cause potential enable failure. 3588 */ 3589 if (info->rom_version >= 0x00130201) 3590 msleep(QCA_BT_RESET_WAIT_MS); 3591 } 3592 3593 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3594 * work with the likes of HSP/HFP mSBC. 3595 */ 3596 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3597 3598 return 0; 3599 } 3600 3601 static inline int __set_diag_interface(struct hci_dev *hdev) 3602 { 3603 struct btusb_data *data = hci_get_drvdata(hdev); 3604 struct usb_interface *intf = data->diag; 3605 int i; 3606 3607 if (!data->diag) 3608 return -ENODEV; 3609 3610 data->diag_tx_ep = NULL; 3611 data->diag_rx_ep = NULL; 3612 3613 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3614 struct usb_endpoint_descriptor *ep_desc; 3615 3616 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3617 3618 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3619 data->diag_tx_ep = ep_desc; 3620 continue; 3621 } 3622 3623 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3624 data->diag_rx_ep = ep_desc; 3625 continue; 3626 } 3627 } 3628 3629 if (!data->diag_tx_ep || !data->diag_rx_ep) { 3630 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3631 return -ENODEV; 3632 } 3633 3634 return 0; 3635 } 3636 3637 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3638 { 3639 struct btusb_data *data = hci_get_drvdata(hdev); 3640 struct sk_buff *skb; 3641 struct urb *urb; 3642 unsigned int pipe; 3643 3644 if (!data->diag_tx_ep) 3645 return ERR_PTR(-ENODEV); 3646 3647 urb = usb_alloc_urb(0, GFP_KERNEL); 3648 if (!urb) 3649 return ERR_PTR(-ENOMEM); 3650 3651 skb = bt_skb_alloc(2, GFP_KERNEL); 3652 if (!skb) { 3653 usb_free_urb(urb); 3654 return ERR_PTR(-ENOMEM); 3655 } 3656 3657 skb_put_u8(skb, 0xf0); 3658 skb_put_u8(skb, enable); 3659 3660 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 3661 3662 usb_fill_bulk_urb(urb, data->udev, pipe, 3663 skb->data, skb->len, btusb_tx_complete, skb); 3664 3665 skb->dev = (void *)hdev; 3666 3667 return urb; 3668 } 3669 3670 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 3671 { 3672 struct btusb_data *data = hci_get_drvdata(hdev); 3673 struct urb *urb; 3674 3675 if (!data->diag) 3676 return -ENODEV; 3677 3678 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3679 return -ENETDOWN; 3680 3681 urb = alloc_diag_urb(hdev, enable); 3682 if (IS_ERR(urb)) 3683 return PTR_ERR(urb); 3684 3685 return submit_or_queue_tx_urb(hdev, urb); 3686 } 3687 3688 #ifdef CONFIG_PM 3689 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 3690 { 3691 struct btusb_data *data = priv; 3692 3693 pm_wakeup_event(&data->udev->dev, 0); 3694 pm_system_wakeup(); 3695 3696 /* Disable only if not already disabled (keep it balanced) */ 3697 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3698 disable_irq_nosync(irq); 3699 disable_irq_wake(irq); 3700 } 3701 return IRQ_HANDLED; 3702 } 3703 3704 static const struct of_device_id btusb_match_table[] = { 3705 { .compatible = "usb1286,204e" }, 3706 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 3707 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 3708 { } 3709 }; 3710 MODULE_DEVICE_TABLE(of, btusb_match_table); 3711 3712 /* Use an oob wakeup pin? */ 3713 static int btusb_config_oob_wake(struct hci_dev *hdev) 3714 { 3715 struct btusb_data *data = hci_get_drvdata(hdev); 3716 struct device *dev = &data->udev->dev; 3717 int irq, ret; 3718 3719 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3720 3721 if (!of_match_device(btusb_match_table, dev)) 3722 return 0; 3723 3724 /* Move on if no IRQ specified */ 3725 irq = of_irq_get_byname(dev->of_node, "wakeup"); 3726 if (irq <= 0) { 3727 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 3728 return 0; 3729 } 3730 3731 irq_set_status_flags(irq, IRQ_NOAUTOEN); 3732 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 3733 0, "OOB Wake-on-BT", data); 3734 if (ret) { 3735 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 3736 return ret; 3737 } 3738 3739 ret = device_init_wakeup(dev, true); 3740 if (ret) { 3741 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 3742 return ret; 3743 } 3744 3745 data->oob_wake_irq = irq; 3746 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 3747 return 0; 3748 } 3749 #endif 3750 3751 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 3752 { 3753 if (dmi_check_system(btusb_needs_reset_resume_table)) 3754 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3755 } 3756 3757 static bool btusb_wakeup(struct hci_dev *hdev) 3758 { 3759 struct btusb_data *data = hci_get_drvdata(hdev); 3760 3761 return device_may_wakeup(&data->udev->dev); 3762 } 3763 3764 static int btusb_shutdown_qca(struct hci_dev *hdev) 3765 { 3766 struct sk_buff *skb; 3767 3768 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 3769 if (IS_ERR(skb)) { 3770 bt_dev_err(hdev, "HCI reset during shutdown failed"); 3771 return PTR_ERR(skb); 3772 } 3773 kfree_skb(skb); 3774 3775 return 0; 3776 } 3777 3778 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 3779 size_t count, loff_t *ppos) 3780 { 3781 struct btusb_data *data = file->private_data; 3782 char buf[3]; 3783 3784 buf[0] = data->poll_sync ? 'Y' : 'N'; 3785 buf[1] = '\n'; 3786 buf[2] = '\0'; 3787 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 3788 } 3789 3790 static ssize_t force_poll_sync_write(struct file *file, 3791 const char __user *user_buf, 3792 size_t count, loff_t *ppos) 3793 { 3794 struct btusb_data *data = file->private_data; 3795 bool enable; 3796 int err; 3797 3798 err = kstrtobool_from_user(user_buf, count, &enable); 3799 if (err) 3800 return err; 3801 3802 /* Only allow changes while the adapter is down */ 3803 if (test_bit(HCI_UP, &data->hdev->flags)) 3804 return -EPERM; 3805 3806 if (data->poll_sync == enable) 3807 return -EALREADY; 3808 3809 data->poll_sync = enable; 3810 3811 return count; 3812 } 3813 3814 static const struct file_operations force_poll_sync_fops = { 3815 .open = simple_open, 3816 .read = force_poll_sync_read, 3817 .write = force_poll_sync_write, 3818 .llseek = default_llseek, 3819 }; 3820 3821 static int btusb_probe(struct usb_interface *intf, 3822 const struct usb_device_id *id) 3823 { 3824 struct usb_endpoint_descriptor *ep_desc; 3825 struct gpio_desc *reset_gpio; 3826 struct btusb_data *data; 3827 struct hci_dev *hdev; 3828 unsigned ifnum_base; 3829 int i, err, priv_size; 3830 3831 BT_DBG("intf %p id %p", intf, id); 3832 3833 /* interface numbers are hardcoded in the spec */ 3834 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 3835 if (!(id->driver_info & BTUSB_IFNUM_2)) 3836 return -ENODEV; 3837 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 3838 return -ENODEV; 3839 } 3840 3841 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 3842 3843 if (!id->driver_info) { 3844 const struct usb_device_id *match; 3845 3846 match = usb_match_id(intf, blacklist_table); 3847 if (match) 3848 id = match; 3849 } 3850 3851 if (id->driver_info == BTUSB_IGNORE) 3852 return -ENODEV; 3853 3854 if (id->driver_info & BTUSB_ATH3012) { 3855 struct usb_device *udev = interface_to_usbdev(intf); 3856 3857 /* Old firmware would otherwise let ath3k driver load 3858 * patch and sysconfig files 3859 */ 3860 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 3861 !btusb_qca_need_patch(udev)) 3862 return -ENODEV; 3863 } 3864 3865 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 3866 if (!data) 3867 return -ENOMEM; 3868 3869 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3870 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3871 3872 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 3873 data->intr_ep = ep_desc; 3874 continue; 3875 } 3876 3877 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3878 data->bulk_tx_ep = ep_desc; 3879 continue; 3880 } 3881 3882 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3883 data->bulk_rx_ep = ep_desc; 3884 continue; 3885 } 3886 } 3887 3888 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 3889 return -ENODEV; 3890 3891 if (id->driver_info & BTUSB_AMP) { 3892 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 3893 data->cmdreq = 0x2b; 3894 } else { 3895 data->cmdreq_type = USB_TYPE_CLASS; 3896 data->cmdreq = 0x00; 3897 } 3898 3899 data->udev = interface_to_usbdev(intf); 3900 data->intf = intf; 3901 3902 INIT_WORK(&data->work, btusb_work); 3903 INIT_WORK(&data->waker, btusb_waker); 3904 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 3905 3906 skb_queue_head_init(&data->acl_q); 3907 3908 init_usb_anchor(&data->deferred); 3909 init_usb_anchor(&data->tx_anchor); 3910 spin_lock_init(&data->txlock); 3911 3912 init_usb_anchor(&data->intr_anchor); 3913 init_usb_anchor(&data->bulk_anchor); 3914 init_usb_anchor(&data->isoc_anchor); 3915 init_usb_anchor(&data->diag_anchor); 3916 init_usb_anchor(&data->ctrl_anchor); 3917 spin_lock_init(&data->rxlock); 3918 3919 priv_size = 0; 3920 3921 data->recv_event = hci_recv_frame; 3922 data->recv_bulk = btusb_recv_bulk; 3923 3924 if (id->driver_info & BTUSB_INTEL_COMBINED) { 3925 /* Allocate extra space for Intel device */ 3926 priv_size += sizeof(struct btintel_data); 3927 3928 /* Override the rx handlers */ 3929 data->recv_event = btusb_recv_event_intel; 3930 data->recv_bulk = btusb_recv_bulk_intel; 3931 } else if (id->driver_info & BTUSB_REALTEK) { 3932 /* Allocate extra space for Realtek device */ 3933 priv_size += sizeof(struct btrealtek_data); 3934 } 3935 3936 data->recv_acl = hci_recv_frame; 3937 3938 hdev = hci_alloc_dev_priv(priv_size); 3939 if (!hdev) 3940 return -ENOMEM; 3941 3942 hdev->bus = HCI_USB; 3943 hci_set_drvdata(hdev, data); 3944 3945 if (id->driver_info & BTUSB_AMP) 3946 hdev->dev_type = HCI_AMP; 3947 else 3948 hdev->dev_type = HCI_PRIMARY; 3949 3950 data->hdev = hdev; 3951 3952 SET_HCIDEV_DEV(hdev, &intf->dev); 3953 3954 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 3955 GPIOD_OUT_LOW); 3956 if (IS_ERR(reset_gpio)) { 3957 err = PTR_ERR(reset_gpio); 3958 goto out_free_dev; 3959 } else if (reset_gpio) { 3960 data->reset_gpio = reset_gpio; 3961 } 3962 3963 hdev->open = btusb_open; 3964 hdev->close = btusb_close; 3965 hdev->flush = btusb_flush; 3966 hdev->send = btusb_send_frame; 3967 hdev->notify = btusb_notify; 3968 hdev->wakeup = btusb_wakeup; 3969 3970 #ifdef CONFIG_PM 3971 err = btusb_config_oob_wake(hdev); 3972 if (err) 3973 goto out_free_dev; 3974 3975 /* Marvell devices may need a specific chip configuration */ 3976 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3977 err = marvell_config_oob_wake(hdev); 3978 if (err) 3979 goto out_free_dev; 3980 } 3981 #endif 3982 if (id->driver_info & BTUSB_CW6622) 3983 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3984 3985 if (id->driver_info & BTUSB_BCM2045) 3986 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3987 3988 if (id->driver_info & BTUSB_BCM92035) 3989 hdev->setup = btusb_setup_bcm92035; 3990 3991 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 3992 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 3993 hdev->manufacturer = 15; 3994 hdev->setup = btbcm_setup_patchram; 3995 hdev->set_diag = btusb_bcm_set_diag; 3996 hdev->set_bdaddr = btbcm_set_bdaddr; 3997 3998 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3999 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4000 } 4001 4002 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4003 (id->driver_info & BTUSB_BCM_APPLE)) { 4004 hdev->manufacturer = 15; 4005 hdev->setup = btbcm_setup_apple; 4006 hdev->set_diag = btusb_bcm_set_diag; 4007 4008 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4009 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4010 } 4011 4012 /* Combined Intel Device setup to support multiple setup routine */ 4013 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4014 err = btintel_configure_setup(hdev); 4015 if (err) 4016 goto out_free_dev; 4017 4018 /* Transport specific configuration */ 4019 hdev->send = btusb_send_frame_intel; 4020 hdev->cmd_timeout = btusb_intel_cmd_timeout; 4021 4022 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4023 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4024 4025 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4026 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4027 4028 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4029 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4030 } 4031 4032 if (id->driver_info & BTUSB_MARVELL) 4033 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4034 4035 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4036 (id->driver_info & BTUSB_MEDIATEK)) { 4037 hdev->setup = btusb_mtk_setup; 4038 hdev->shutdown = btusb_mtk_shutdown; 4039 hdev->manufacturer = 70; 4040 hdev->cmd_timeout = btusb_mtk_cmd_timeout; 4041 hdev->set_bdaddr = btmtk_set_bdaddr; 4042 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4043 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4044 data->recv_acl = btusb_recv_acl_mtk; 4045 } 4046 4047 if (id->driver_info & BTUSB_SWAVE) { 4048 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4049 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4050 } 4051 4052 if (id->driver_info & BTUSB_INTEL_BOOT) { 4053 hdev->manufacturer = 2; 4054 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4055 } 4056 4057 if (id->driver_info & BTUSB_ATH3012) { 4058 data->setup_on_usb = btusb_setup_qca; 4059 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4060 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4061 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4062 } 4063 4064 if (id->driver_info & BTUSB_QCA_ROME) { 4065 data->setup_on_usb = btusb_setup_qca; 4066 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4067 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4068 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4069 btusb_check_needs_reset_resume(intf); 4070 } 4071 4072 if (id->driver_info & BTUSB_QCA_WCN6855) { 4073 data->setup_on_usb = btusb_setup_qca; 4074 hdev->shutdown = btusb_shutdown_qca; 4075 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4076 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4077 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4078 hci_set_msft_opcode(hdev, 0xFD70); 4079 } 4080 4081 if (id->driver_info & BTUSB_AMP) { 4082 /* AMP controllers do not support SCO packets */ 4083 data->isoc = NULL; 4084 } else { 4085 /* Interface orders are hardcoded in the specification */ 4086 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4087 data->isoc_ifnum = ifnum_base + 1; 4088 } 4089 4090 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4091 (id->driver_info & BTUSB_REALTEK)) { 4092 hdev->setup = btusb_setup_realtek; 4093 hdev->shutdown = btrtl_shutdown_realtek; 4094 hdev->cmd_timeout = btusb_rtl_cmd_timeout; 4095 4096 /* Realtek devices need to set remote wakeup on auto-suspend */ 4097 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4098 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4099 } 4100 4101 if (!reset) 4102 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4103 4104 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4105 if (!disable_scofix) 4106 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4107 } 4108 4109 if (id->driver_info & BTUSB_BROKEN_ISOC) 4110 data->isoc = NULL; 4111 4112 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4113 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4114 4115 if (id->driver_info & BTUSB_VALID_LE_STATES) 4116 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); 4117 4118 if (id->driver_info & BTUSB_DIGIANSWER) { 4119 data->cmdreq_type = USB_TYPE_VENDOR; 4120 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4121 } 4122 4123 if (id->driver_info & BTUSB_CSR) { 4124 struct usb_device *udev = data->udev; 4125 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4126 4127 /* Old firmware would otherwise execute USB reset */ 4128 if (bcdDevice < 0x117) 4129 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4130 4131 /* This must be set first in case we disable it for fakes */ 4132 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4133 4134 /* Fake CSR devices with broken commands */ 4135 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4136 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4137 hdev->setup = btusb_setup_csr; 4138 } 4139 4140 if (id->driver_info & BTUSB_SNIFFER) { 4141 struct usb_device *udev = data->udev; 4142 4143 /* New sniffer firmware has crippled HCI interface */ 4144 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4145 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4146 } 4147 4148 if (id->driver_info & BTUSB_INTEL_BOOT) { 4149 /* A bug in the bootloader causes that interrupt interface is 4150 * only enabled after receiving SetInterface(0, AltSetting=0). 4151 */ 4152 err = usb_set_interface(data->udev, 0, 0); 4153 if (err < 0) { 4154 BT_ERR("failed to set interface 0, alt 0 %d", err); 4155 goto out_free_dev; 4156 } 4157 } 4158 4159 if (data->isoc) { 4160 err = usb_driver_claim_interface(&btusb_driver, 4161 data->isoc, data); 4162 if (err < 0) 4163 goto out_free_dev; 4164 } 4165 4166 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4167 if (!usb_driver_claim_interface(&btusb_driver, 4168 data->diag, data)) 4169 __set_diag_interface(hdev); 4170 else 4171 data->diag = NULL; 4172 } 4173 4174 if (enable_autosuspend) 4175 usb_enable_autosuspend(data->udev); 4176 4177 data->poll_sync = enable_poll_sync; 4178 4179 err = hci_register_dev(hdev); 4180 if (err < 0) 4181 goto out_free_dev; 4182 4183 usb_set_intfdata(intf, data); 4184 4185 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4186 &force_poll_sync_fops); 4187 4188 return 0; 4189 4190 out_free_dev: 4191 if (data->reset_gpio) 4192 gpiod_put(data->reset_gpio); 4193 hci_free_dev(hdev); 4194 return err; 4195 } 4196 4197 static void btusb_disconnect(struct usb_interface *intf) 4198 { 4199 struct btusb_data *data = usb_get_intfdata(intf); 4200 struct hci_dev *hdev; 4201 4202 BT_DBG("intf %p", intf); 4203 4204 if (!data) 4205 return; 4206 4207 hdev = data->hdev; 4208 usb_set_intfdata(data->intf, NULL); 4209 4210 if (data->isoc) 4211 usb_set_intfdata(data->isoc, NULL); 4212 4213 if (data->diag) 4214 usb_set_intfdata(data->diag, NULL); 4215 4216 hci_unregister_dev(hdev); 4217 4218 if (intf == data->intf) { 4219 if (data->isoc) 4220 usb_driver_release_interface(&btusb_driver, data->isoc); 4221 if (data->diag) 4222 usb_driver_release_interface(&btusb_driver, data->diag); 4223 } else if (intf == data->isoc) { 4224 if (data->diag) 4225 usb_driver_release_interface(&btusb_driver, data->diag); 4226 usb_driver_release_interface(&btusb_driver, data->intf); 4227 } else if (intf == data->diag) { 4228 usb_driver_release_interface(&btusb_driver, data->intf); 4229 if (data->isoc) 4230 usb_driver_release_interface(&btusb_driver, data->isoc); 4231 } 4232 4233 if (data->oob_wake_irq) 4234 device_init_wakeup(&data->udev->dev, false); 4235 4236 if (data->reset_gpio) 4237 gpiod_put(data->reset_gpio); 4238 4239 hci_free_dev(hdev); 4240 } 4241 4242 #ifdef CONFIG_PM 4243 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4244 { 4245 struct btusb_data *data = usb_get_intfdata(intf); 4246 4247 BT_DBG("intf %p", intf); 4248 4249 if (data->suspend_count++) 4250 return 0; 4251 4252 spin_lock_irq(&data->txlock); 4253 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4254 set_bit(BTUSB_SUSPENDING, &data->flags); 4255 spin_unlock_irq(&data->txlock); 4256 } else { 4257 spin_unlock_irq(&data->txlock); 4258 data->suspend_count--; 4259 return -EBUSY; 4260 } 4261 4262 cancel_work_sync(&data->work); 4263 4264 btusb_stop_traffic(data); 4265 usb_kill_anchored_urbs(&data->tx_anchor); 4266 4267 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4268 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4269 enable_irq_wake(data->oob_wake_irq); 4270 enable_irq(data->oob_wake_irq); 4271 } 4272 4273 /* For global suspend, Realtek devices lose the loaded fw 4274 * in them. But for autosuspend, firmware should remain. 4275 * Actually, it depends on whether the usb host sends 4276 * set feature (enable wakeup) or not. 4277 */ 4278 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4279 if (PMSG_IS_AUTO(message) && 4280 device_can_wakeup(&data->udev->dev)) 4281 data->udev->do_remote_wakeup = 1; 4282 else if (!PMSG_IS_AUTO(message) && 4283 !device_may_wakeup(&data->udev->dev)) { 4284 data->udev->do_remote_wakeup = 0; 4285 data->udev->reset_resume = 1; 4286 } 4287 } 4288 4289 return 0; 4290 } 4291 4292 static void play_deferred(struct btusb_data *data) 4293 { 4294 struct urb *urb; 4295 int err; 4296 4297 while ((urb = usb_get_from_anchor(&data->deferred))) { 4298 usb_anchor_urb(urb, &data->tx_anchor); 4299 4300 err = usb_submit_urb(urb, GFP_ATOMIC); 4301 if (err < 0) { 4302 if (err != -EPERM && err != -ENODEV) 4303 BT_ERR("%s urb %p submission failed (%d)", 4304 data->hdev->name, urb, -err); 4305 kfree(urb->setup_packet); 4306 usb_unanchor_urb(urb); 4307 usb_free_urb(urb); 4308 break; 4309 } 4310 4311 data->tx_in_flight++; 4312 usb_free_urb(urb); 4313 } 4314 4315 /* Cleanup the rest deferred urbs. */ 4316 while ((urb = usb_get_from_anchor(&data->deferred))) { 4317 kfree(urb->setup_packet); 4318 usb_free_urb(urb); 4319 } 4320 } 4321 4322 static int btusb_resume(struct usb_interface *intf) 4323 { 4324 struct btusb_data *data = usb_get_intfdata(intf); 4325 struct hci_dev *hdev = data->hdev; 4326 int err = 0; 4327 4328 BT_DBG("intf %p", intf); 4329 4330 if (--data->suspend_count) 4331 return 0; 4332 4333 /* Disable only if not already disabled (keep it balanced) */ 4334 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4335 disable_irq(data->oob_wake_irq); 4336 disable_irq_wake(data->oob_wake_irq); 4337 } 4338 4339 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4340 goto done; 4341 4342 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4343 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4344 if (err < 0) { 4345 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4346 goto failed; 4347 } 4348 } 4349 4350 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4351 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4352 if (err < 0) { 4353 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4354 goto failed; 4355 } 4356 4357 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4358 } 4359 4360 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4361 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4362 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4363 else 4364 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4365 } 4366 4367 spin_lock_irq(&data->txlock); 4368 play_deferred(data); 4369 clear_bit(BTUSB_SUSPENDING, &data->flags); 4370 spin_unlock_irq(&data->txlock); 4371 schedule_work(&data->work); 4372 4373 return 0; 4374 4375 failed: 4376 usb_scuttle_anchored_urbs(&data->deferred); 4377 done: 4378 spin_lock_irq(&data->txlock); 4379 clear_bit(BTUSB_SUSPENDING, &data->flags); 4380 spin_unlock_irq(&data->txlock); 4381 4382 return err; 4383 } 4384 #endif 4385 4386 static struct usb_driver btusb_driver = { 4387 .name = "btusb", 4388 .probe = btusb_probe, 4389 .disconnect = btusb_disconnect, 4390 #ifdef CONFIG_PM 4391 .suspend = btusb_suspend, 4392 .resume = btusb_resume, 4393 #endif 4394 .id_table = btusb_table, 4395 .supports_autosuspend = 1, 4396 .disable_hub_initiated_lpm = 1, 4397 }; 4398 4399 module_usb_driver(btusb_driver); 4400 4401 module_param(disable_scofix, bool, 0644); 4402 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4403 4404 module_param(force_scofix, bool, 0644); 4405 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4406 4407 module_param(enable_autosuspend, bool, 0644); 4408 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4409 4410 module_param(reset, bool, 0644); 4411 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4412 4413 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4414 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4415 MODULE_VERSION(VERSION); 4416 MODULE_LICENSE("GPL"); 4417