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/cpufeature.h> 10 #include <linux/dmi.h> 11 #include <linux/module.h> 12 #include <linux/usb.h> 13 #include <linux/usb/quirks.h> 14 #include <linux/firmware.h> 15 #include <linux/iopoll.h> 16 #include <linux/of_device.h> 17 #include <linux/of_irq.h> 18 #include <linux/suspend.h> 19 #include <linux/gpio/consumer.h> 20 #include <linux/debugfs.h> 21 #include <linux/unaligned.h> 22 23 #include <net/bluetooth/bluetooth.h> 24 #include <net/bluetooth/hci_core.h> 25 #include <net/bluetooth/hci_drv.h> 26 27 #include "btintel.h" 28 #include "btbcm.h" 29 #include "btrtl.h" 30 #include "btmtk.h" 31 #include "hci_uart.h" 32 #include "btusb_qcom.h" 33 34 #define VERSION "1.0" 35 36 static bool disable_scofix; 37 static bool force_scofix; 38 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 39 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 40 static bool reset = true; 41 42 static struct usb_driver btusb_driver; 43 44 #define BTUSB_IGNORE BIT(0) 45 #define BTUSB_DIGIANSWER BIT(1) 46 #define BTUSB_CSR BIT(2) 47 #define BTUSB_SNIFFER BIT(3) 48 #define BTUSB_BCM92035 BIT(4) 49 #define BTUSB_BROKEN_ISOC BIT(5) 50 #define BTUSB_WRONG_SCO_MTU BIT(6) 51 #define BTUSB_ATH3012 BIT(7) 52 #define BTUSB_INTEL_COMBINED BIT(8) 53 #define BTUSB_INTEL_BOOT BIT(9) 54 #define BTUSB_BCM_PATCHRAM BIT(10) 55 #define BTUSB_MARVELL BIT(11) 56 #define BTUSB_SWAVE BIT(12) 57 #define BTUSB_AMP BIT(13) 58 #define BTUSB_QCA_ROME BIT(14) 59 #define BTUSB_BCM_APPLE BIT(15) 60 #define BTUSB_REALTEK BIT(16) 61 #define BTUSB_BCM2045 BIT(17) 62 #define BTUSB_IFNUM_2 BIT(18) 63 #define BTUSB_CW6622 BIT(19) 64 #define BTUSB_MEDIATEK BIT(20) 65 #define BTUSB_WIDEBAND_SPEECH BIT(21) 66 #define BTUSB_INVALID_LE_STATES BIT(22) 67 #define BTUSB_QCA_WCN6855 BIT(23) 68 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 69 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 70 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 71 #define BTUSB_ACTIONS_SEMI BIT(27) 72 #define BTUSB_BARROT BIT(28) 73 #define BTUSB_QUALCOMM BIT(30) 74 75 static const struct usb_device_id btusb_table[] = { 76 /* 77 * NXP IW610 (0471:0215): the composite device reports Bluetooth 78 * class at the whole-device level, so the generic entry below 79 * would also match this WiFi vendor interface. Ignore it here 80 * first so mwifiex-nxp can bind it instead. 81 */ 82 { USB_DEVICE_AND_INTERFACE_INFO(0x0471, 0x0215, 0xff, 0xff, 0xff), 83 .driver_info = BTUSB_IGNORE }, 84 85 /* Generic Bluetooth USB device */ 86 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 87 88 /* Generic Bluetooth AMP device */ 89 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 90 91 /* Generic Bluetooth USB interface */ 92 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 93 94 /* Apple-specific (Broadcom) devices */ 95 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 96 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 97 98 /* MediaTek MT76x0E */ 99 { USB_DEVICE(0x0e8d, 0x763f) }, 100 101 /* Broadcom SoftSailing reporting vendor specific */ 102 { USB_DEVICE(0x0a5c, 0x21e1) }, 103 104 /* Apple MacBookPro 7,1 */ 105 { USB_DEVICE(0x05ac, 0x8213) }, 106 107 /* Apple iMac11,1 */ 108 { USB_DEVICE(0x05ac, 0x8215) }, 109 110 /* Apple MacBookPro6,2 */ 111 { USB_DEVICE(0x05ac, 0x8218) }, 112 113 /* Apple MacBookAir3,1, MacBookAir3,2 */ 114 { USB_DEVICE(0x05ac, 0x821b) }, 115 116 /* Apple MacBookAir4,1 */ 117 { USB_DEVICE(0x05ac, 0x821f) }, 118 119 /* Apple MacBookPro8,2 */ 120 { USB_DEVICE(0x05ac, 0x821a) }, 121 122 /* Apple MacMini5,1 */ 123 { USB_DEVICE(0x05ac, 0x8281) }, 124 125 /* AVM BlueFRITZ! USB v2.0 */ 126 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 127 128 /* Bluetooth Ultraport Module from IBM */ 129 { USB_DEVICE(0x04bf, 0x030a) }, 130 131 /* ALPS Modules with non-standard id */ 132 { USB_DEVICE(0x044e, 0x3001) }, 133 { USB_DEVICE(0x044e, 0x3002) }, 134 135 /* Ericsson with non-standard id */ 136 { USB_DEVICE(0x0bdb, 0x1002) }, 137 138 /* Canyon CN-BTU1 with HID interfaces */ 139 { USB_DEVICE(0x0c10, 0x0000) }, 140 141 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 142 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 143 144 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 145 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 146 .driver_info = BTUSB_BCM_PATCHRAM }, 147 148 /* Broadcom BCM920703 (HTC Vive) */ 149 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 150 .driver_info = BTUSB_BCM_PATCHRAM }, 151 152 /* Foxconn - Hon Hai */ 153 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 154 .driver_info = BTUSB_BCM_PATCHRAM }, 155 156 /* Lite-On Technology - Broadcom based */ 157 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 158 .driver_info = BTUSB_BCM_PATCHRAM }, 159 160 /* Broadcom devices with vendor specific id */ 161 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 162 .driver_info = BTUSB_BCM_PATCHRAM }, 163 164 /* ASUSTek Computer - Broadcom based */ 165 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 166 .driver_info = BTUSB_BCM_PATCHRAM }, 167 168 /* Belkin F8065bf - Broadcom based */ 169 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 170 .driver_info = BTUSB_BCM_PATCHRAM }, 171 172 /* IMC Networks - Broadcom based */ 173 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 174 .driver_info = BTUSB_BCM_PATCHRAM }, 175 176 /* Dell Computer - Broadcom based */ 177 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 178 .driver_info = BTUSB_BCM_PATCHRAM }, 179 180 /* Toshiba Corp - Broadcom based */ 181 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 182 .driver_info = BTUSB_BCM_PATCHRAM }, 183 184 /* Intel Bluetooth USB Bootloader (RAM module) */ 185 { USB_DEVICE(0x8087, 0x0a5a), 186 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 187 188 { } /* Terminating entry */ 189 }; 190 191 MODULE_DEVICE_TABLE(usb, btusb_table); 192 193 static const struct usb_device_id quirks_table[] = { 194 /* CSR BlueCore devices */ 195 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 196 197 /* Broadcom BCM2033 without firmware */ 198 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 199 200 /* Broadcom BCM2045 devices */ 201 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 202 203 /* Atheros 3011 with sflash firmware */ 204 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 205 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 206 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 207 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 208 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 209 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 210 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 211 212 /* Atheros AR9285 Malbec with sflash firmware */ 213 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 214 215 /* Atheros 3012 with sflash firmware */ 216 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 255 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 256 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 258 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 259 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 260 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 261 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 262 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 263 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 264 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 265 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 266 267 /* Atheros AR5BBU12 with sflash firmware */ 268 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 269 270 /* Atheros AR5BBU12 with sflash firmware */ 271 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 272 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 273 274 /* QCA ROME chipset */ 275 { USB_DEVICE(0x0b05, 0x1825), .driver_info = BTUSB_QCA_ROME | 276 BTUSB_WIDEBAND_SPEECH }, 277 { USB_DEVICE(0x0b05, 0x1868), .driver_info = BTUSB_QCA_ROME | 278 BTUSB_WIDEBAND_SPEECH }, 279 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 280 BTUSB_WIDEBAND_SPEECH }, 281 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 282 BTUSB_WIDEBAND_SPEECH }, 283 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 284 BTUSB_WIDEBAND_SPEECH }, 285 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 286 BTUSB_WIDEBAND_SPEECH }, 287 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 288 BTUSB_WIDEBAND_SPEECH }, 289 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 290 BTUSB_WIDEBAND_SPEECH }, 291 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 292 BTUSB_WIDEBAND_SPEECH }, 293 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 294 BTUSB_WIDEBAND_SPEECH }, 295 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 296 BTUSB_WIDEBAND_SPEECH }, 297 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 298 BTUSB_WIDEBAND_SPEECH }, 299 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 300 BTUSB_WIDEBAND_SPEECH }, 301 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 302 BTUSB_WIDEBAND_SPEECH }, 303 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 304 BTUSB_WIDEBAND_SPEECH }, 305 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 306 BTUSB_WIDEBAND_SPEECH }, 307 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 308 BTUSB_WIDEBAND_SPEECH }, 309 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 310 BTUSB_WIDEBAND_SPEECH }, 311 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 312 BTUSB_WIDEBAND_SPEECH }, 313 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 314 BTUSB_WIDEBAND_SPEECH }, 315 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 316 BTUSB_WIDEBAND_SPEECH }, 317 { USB_DEVICE(0x13d3, 0x3503), .driver_info = BTUSB_QCA_ROME | 318 BTUSB_WIDEBAND_SPEECH }, 319 320 /* QCA WCN6855 chipset */ 321 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH }, 323 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 324 BTUSB_WIDEBAND_SPEECH }, 325 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 326 BTUSB_WIDEBAND_SPEECH }, 327 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH }, 329 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 330 BTUSB_WIDEBAND_SPEECH }, 331 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 332 BTUSB_WIDEBAND_SPEECH }, 333 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH }, 335 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 336 BTUSB_WIDEBAND_SPEECH }, 337 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 338 BTUSB_WIDEBAND_SPEECH }, 339 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH }, 341 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 342 BTUSB_WIDEBAND_SPEECH }, 343 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 344 BTUSB_WIDEBAND_SPEECH }, 345 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH }, 347 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 348 BTUSB_WIDEBAND_SPEECH }, 349 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 350 BTUSB_WIDEBAND_SPEECH }, 351 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH }, 353 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 354 BTUSB_WIDEBAND_SPEECH }, 355 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 356 BTUSB_WIDEBAND_SPEECH }, 357 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH }, 359 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 360 BTUSB_WIDEBAND_SPEECH }, 361 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 362 BTUSB_WIDEBAND_SPEECH }, 363 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH }, 365 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 366 BTUSB_WIDEBAND_SPEECH }, 367 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 368 BTUSB_WIDEBAND_SPEECH }, 369 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH }, 371 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 372 BTUSB_WIDEBAND_SPEECH }, 373 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 374 BTUSB_WIDEBAND_SPEECH }, 375 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH }, 377 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 378 BTUSB_WIDEBAND_SPEECH }, 379 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 380 BTUSB_WIDEBAND_SPEECH }, 381 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH }, 383 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 384 BTUSB_WIDEBAND_SPEECH }, 385 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 386 BTUSB_WIDEBAND_SPEECH }, 387 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 388 BTUSB_WIDEBAND_SPEECH }, 389 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 390 BTUSB_WIDEBAND_SPEECH }, 391 { USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 | 392 BTUSB_WIDEBAND_SPEECH }, 393 394 /* QCA WCN785x chipset */ 395 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 396 BTUSB_WIDEBAND_SPEECH }, 397 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 | 398 BTUSB_WIDEBAND_SPEECH }, 399 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH }, 401 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 | 402 BTUSB_WIDEBAND_SPEECH }, 403 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 | 404 BTUSB_WIDEBAND_SPEECH }, 405 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 | 406 BTUSB_WIDEBAND_SPEECH }, 407 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH }, 409 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 | 410 BTUSB_WIDEBAND_SPEECH }, 411 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 | 412 BTUSB_WIDEBAND_SPEECH }, 413 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 | 414 BTUSB_WIDEBAND_SPEECH }, 415 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 | 416 BTUSB_WIDEBAND_SPEECH }, 417 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 | 418 BTUSB_WIDEBAND_SPEECH }, 419 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 | 420 BTUSB_WIDEBAND_SPEECH }, 421 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 | 422 BTUSB_WIDEBAND_SPEECH }, 423 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 | 424 BTUSB_WIDEBAND_SPEECH }, 425 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 | 426 BTUSB_WIDEBAND_SPEECH }, 427 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 | 428 BTUSB_WIDEBAND_SPEECH }, 429 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 | 430 BTUSB_WIDEBAND_SPEECH }, 431 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 | 432 BTUSB_WIDEBAND_SPEECH }, 433 434 /* Qualcomm multi-subsystem chipset QCC2072 */ 435 { USB_DEVICE(0x0cf3, 0xea00), .driver_info = BTUSB_QUALCOMM | 436 BTUSB_WIDEBAND_SPEECH }, 437 438 /* Broadcom BCM2035 */ 439 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 440 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 441 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 442 443 /* Broadcom BCM2045 */ 444 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 445 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 446 447 /* IBM/Lenovo ThinkPad with Broadcom chip */ 448 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 449 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 450 451 /* HP laptop with Broadcom chip */ 452 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 453 454 /* Dell laptop with Broadcom chip */ 455 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 456 457 /* Dell Wireless 370 and 410 devices */ 458 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 459 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 460 461 /* Belkin F8T012 and F8T013 devices */ 462 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 463 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 464 465 /* Asus WL-BTD202 device */ 466 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 467 468 /* Kensington Bluetooth USB adapter */ 469 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 470 471 /* RTX Telecom based adapters with buggy SCO support */ 472 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 473 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 474 475 /* CONWISE Technology based adapters with buggy SCO support */ 476 { USB_DEVICE(0x0e5e, 0x6622), 477 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 478 479 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 480 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 481 482 /* Digianswer devices */ 483 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 484 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 485 486 /* CSR BlueCore Bluetooth Sniffer */ 487 { USB_DEVICE(0x0a12, 0x0002), 488 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 489 490 /* Frontline ComProbe Bluetooth Sniffer */ 491 { USB_DEVICE(0x16d3, 0x0002), 492 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 493 494 /* Marvell Bluetooth devices */ 495 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 496 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 497 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 498 499 /* 500 * NXP IW610 BT interfaces (Marvell-lineage silicon, same quirk as 501 * the 0x1286 entries above). Scoped to the BT interface class, 502 * not just VID/PID -- see the btusb_table entry above. 503 */ 504 { USB_DEVICE_AND_INTERFACE_INFO(0x0471, 0x0215, 0xe0, 0x01, 0x01), 505 .driver_info = BTUSB_MARVELL }, 506 507 /* Intel Bluetooth devices */ 508 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 509 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 510 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 511 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 512 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 513 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 514 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 515 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 516 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 517 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED }, 518 { USB_DEVICE(0x8087, 0x0040), .driver_info = BTUSB_INTEL_COMBINED }, /* Lizard Peak 2 */ 519 /* Otter Peak 2 (AX231), Wildcat Lake */ 520 { USB_DEVICE(0x8087, 0x0043), .driver_info = BTUSB_INTEL_COMBINED }, 521 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 522 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 523 BTUSB_INTEL_NO_WBS_SUPPORT | 524 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 525 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 526 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 527 BTUSB_INTEL_NO_WBS_SUPPORT | 528 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 529 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 530 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 531 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 532 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 533 534 /* Other Intel Bluetooth devices */ 535 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 536 .driver_info = BTUSB_IGNORE }, 537 538 /* Realtek 8821CE Bluetooth devices */ 539 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 540 BTUSB_WIDEBAND_SPEECH }, 541 { USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK | 542 BTUSB_WIDEBAND_SPEECH }, 543 { USB_DEVICE(0x13d3, 0x3556), .driver_info = BTUSB_REALTEK | 544 BTUSB_WIDEBAND_SPEECH }, 545 { USB_DEVICE(0x13d3, 0x3558), .driver_info = BTUSB_REALTEK | 546 BTUSB_WIDEBAND_SPEECH }, 547 548 /* Realtek 8822CE Bluetooth devices */ 549 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 550 BTUSB_WIDEBAND_SPEECH }, 551 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 552 BTUSB_WIDEBAND_SPEECH }, 553 554 /* Realtek 8822CU Bluetooth devices */ 555 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 556 BTUSB_WIDEBAND_SPEECH }, 557 558 /* Realtek 8851BE Bluetooth devices */ 559 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK }, 560 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, 561 { USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK }, 562 { USB_DEVICE(0x0489, 0xe112), .driver_info = BTUSB_REALTEK | 563 BTUSB_WIDEBAND_SPEECH }, 564 565 /* Realtek 8851BU Bluetooth devices */ 566 { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK | 567 BTUSB_WIDEBAND_SPEECH }, 568 { USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK | 569 BTUSB_WIDEBAND_SPEECH }, 570 { USB_DEVICE(0x7392, 0xe611), .driver_info = BTUSB_REALTEK | 571 BTUSB_WIDEBAND_SPEECH }, 572 { USB_DEVICE(0x2c4e, 0x0128), .driver_info = BTUSB_REALTEK | 573 BTUSB_WIDEBAND_SPEECH }, 574 575 /* Realtek 8852AE Bluetooth devices */ 576 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 577 BTUSB_WIDEBAND_SPEECH }, 578 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 579 BTUSB_WIDEBAND_SPEECH }, 580 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 581 BTUSB_WIDEBAND_SPEECH }, 582 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 583 BTUSB_WIDEBAND_SPEECH }, 584 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 585 BTUSB_WIDEBAND_SPEECH }, 586 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 587 BTUSB_WIDEBAND_SPEECH }, 588 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 589 BTUSB_WIDEBAND_SPEECH }, 590 591 /* Realtek 8852CE Bluetooth devices */ 592 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 593 BTUSB_WIDEBAND_SPEECH }, 594 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 595 BTUSB_WIDEBAND_SPEECH }, 596 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 597 BTUSB_WIDEBAND_SPEECH }, 598 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 599 BTUSB_WIDEBAND_SPEECH }, 600 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 601 BTUSB_WIDEBAND_SPEECH }, 602 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 603 BTUSB_WIDEBAND_SPEECH }, 604 { USB_DEVICE(0x13d3, 0x3612), .driver_info = BTUSB_REALTEK | 605 BTUSB_WIDEBAND_SPEECH }, 606 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 607 BTUSB_WIDEBAND_SPEECH }, 608 609 /* Realtek 8852BE Bluetooth devices */ 610 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 611 BTUSB_WIDEBAND_SPEECH }, 612 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 613 BTUSB_WIDEBAND_SPEECH }, 614 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 615 BTUSB_WIDEBAND_SPEECH }, 616 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 617 BTUSB_WIDEBAND_SPEECH }, 618 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 619 BTUSB_WIDEBAND_SPEECH }, 620 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 621 BTUSB_WIDEBAND_SPEECH }, 622 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 623 BTUSB_WIDEBAND_SPEECH }, 624 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 625 BTUSB_WIDEBAND_SPEECH }, 626 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 627 BTUSB_WIDEBAND_SPEECH }, 628 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 629 BTUSB_WIDEBAND_SPEECH }, 630 631 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 632 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 633 BTUSB_WIDEBAND_SPEECH }, 634 { USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK | 635 BTUSB_WIDEBAND_SPEECH }, 636 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK | 637 BTUSB_WIDEBAND_SPEECH }, 638 { USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK | 639 BTUSB_WIDEBAND_SPEECH }, 640 641 /* Realtek 8922AE Bluetooth devices */ 642 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK | 643 BTUSB_WIDEBAND_SPEECH }, 644 { USB_DEVICE(0x0bda, 0xd922), .driver_info = BTUSB_REALTEK | 645 BTUSB_WIDEBAND_SPEECH }, 646 { USB_DEVICE(0x0bda, 0xd923), .driver_info = BTUSB_REALTEK | 647 BTUSB_WIDEBAND_SPEECH }, 648 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK | 649 BTUSB_WIDEBAND_SPEECH }, 650 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK | 651 BTUSB_WIDEBAND_SPEECH }, 652 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK | 653 BTUSB_WIDEBAND_SPEECH }, 654 655 /* Realtek Bluetooth devices */ 656 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 657 .driver_info = BTUSB_REALTEK }, 658 659 /* MediaTek Bluetooth devices */ 660 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 661 .driver_info = BTUSB_MEDIATEK | 662 BTUSB_WIDEBAND_SPEECH }, 663 664 /* Additional MediaTek MT7615E Bluetooth devices */ 665 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 666 667 /* Additional MediaTek MT7663 Bluetooth devices */ 668 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 669 BTUSB_WIDEBAND_SPEECH }, 670 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 671 BTUSB_WIDEBAND_SPEECH }, 672 673 /* Additional MediaTek MT7668 Bluetooth devices */ 674 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 675 BTUSB_WIDEBAND_SPEECH }, 676 677 /* Additional MediaTek MT7920 Bluetooth devices */ 678 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK | 679 BTUSB_WIDEBAND_SPEECH }, 680 { USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK | 681 BTUSB_WIDEBAND_SPEECH }, 682 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK | 683 BTUSB_WIDEBAND_SPEECH }, 684 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK | 685 BTUSB_WIDEBAND_SPEECH }, 686 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK | 687 BTUSB_WIDEBAND_SPEECH }, 688 { USB_DEVICE(0x0489, 0xe158), .driver_info = BTUSB_MEDIATEK | 689 BTUSB_WIDEBAND_SPEECH }, 690 691 /* Additional MediaTek MT7921 Bluetooth devices */ 692 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 693 BTUSB_WIDEBAND_SPEECH }, 694 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 695 BTUSB_WIDEBAND_SPEECH }, 696 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 697 BTUSB_WIDEBAND_SPEECH }, 698 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 699 BTUSB_WIDEBAND_SPEECH }, 700 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 701 BTUSB_WIDEBAND_SPEECH }, 702 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 703 BTUSB_WIDEBAND_SPEECH }, 704 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 705 BTUSB_WIDEBAND_SPEECH }, 706 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 707 BTUSB_WIDEBAND_SPEECH }, 708 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 709 BTUSB_WIDEBAND_SPEECH }, 710 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK | 711 BTUSB_WIDEBAND_SPEECH }, 712 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 713 BTUSB_WIDEBAND_SPEECH }, 714 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 715 BTUSB_WIDEBAND_SPEECH }, 716 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 717 BTUSB_WIDEBAND_SPEECH }, 718 /* MediaTek MT7902 Bluetooth devices */ 719 { USB_DEVICE(0x0489, 0xe156), .driver_info = BTUSB_MEDIATEK | 720 BTUSB_WIDEBAND_SPEECH }, 721 { USB_DEVICE(0x0e8d, 0x1ede), .driver_info = BTUSB_MEDIATEK | 722 BTUSB_WIDEBAND_SPEECH }, 723 { USB_DEVICE(0x13d3, 0x3579), .driver_info = BTUSB_MEDIATEK | 724 BTUSB_WIDEBAND_SPEECH }, 725 { USB_DEVICE(0x13d3, 0x3580), .driver_info = BTUSB_MEDIATEK | 726 BTUSB_WIDEBAND_SPEECH }, 727 { USB_DEVICE(0x13d3, 0x3594), .driver_info = BTUSB_MEDIATEK | 728 BTUSB_WIDEBAND_SPEECH }, 729 { USB_DEVICE(0x13d3, 0x3596), .driver_info = BTUSB_MEDIATEK | 730 BTUSB_WIDEBAND_SPEECH }, 731 /* MediaTek MT7922 Bluetooth devices */ 732 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 733 BTUSB_WIDEBAND_SPEECH }, 734 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK | 735 BTUSB_WIDEBAND_SPEECH }, 736 737 /* MediaTek MT7922A Bluetooth devices */ 738 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 739 BTUSB_WIDEBAND_SPEECH }, 740 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 741 BTUSB_WIDEBAND_SPEECH }, 742 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 743 BTUSB_WIDEBAND_SPEECH }, 744 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 745 BTUSB_WIDEBAND_SPEECH }, 746 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 747 BTUSB_WIDEBAND_SPEECH }, 748 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 749 BTUSB_WIDEBAND_SPEECH }, 750 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 751 BTUSB_WIDEBAND_SPEECH }, 752 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 753 BTUSB_WIDEBAND_SPEECH }, 754 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 755 BTUSB_WIDEBAND_SPEECH }, 756 { USB_DEVICE(0x0489, 0xe11d), .driver_info = BTUSB_MEDIATEK | 757 BTUSB_WIDEBAND_SPEECH }, 758 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK | 759 BTUSB_WIDEBAND_SPEECH }, 760 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK | 761 BTUSB_WIDEBAND_SPEECH }, 762 { USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK | 763 BTUSB_WIDEBAND_SPEECH }, 764 { USB_DEVICE(0x0489, 0xe174), .driver_info = BTUSB_MEDIATEK | 765 BTUSB_WIDEBAND_SPEECH }, 766 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 767 BTUSB_WIDEBAND_SPEECH }, 768 { USB_DEVICE(0x04ca, 0x3807), .driver_info = BTUSB_MEDIATEK | 769 BTUSB_WIDEBAND_SPEECH }, 770 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 771 BTUSB_WIDEBAND_SPEECH }, 772 { USB_DEVICE(0x0e8d, 0x223c), .driver_info = BTUSB_MEDIATEK | 773 BTUSB_WIDEBAND_SPEECH }, 774 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 775 BTUSB_WIDEBAND_SPEECH }, 776 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK | 777 BTUSB_WIDEBAND_SPEECH }, 778 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 779 BTUSB_WIDEBAND_SPEECH }, 780 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 781 BTUSB_WIDEBAND_SPEECH }, 782 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 783 BTUSB_WIDEBAND_SPEECH }, 784 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 785 BTUSB_WIDEBAND_SPEECH }, 786 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK | 787 BTUSB_WIDEBAND_SPEECH }, 788 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 789 BTUSB_WIDEBAND_SPEECH }, 790 791 /* Additional MediaTek MT7925 Bluetooth devices */ 792 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 793 BTUSB_WIDEBAND_SPEECH }, 794 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 795 BTUSB_WIDEBAND_SPEECH }, 796 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK | 797 BTUSB_WIDEBAND_SPEECH }, 798 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK | 799 BTUSB_WIDEBAND_SPEECH }, 800 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK | 801 BTUSB_WIDEBAND_SPEECH }, 802 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK | 803 BTUSB_WIDEBAND_SPEECH }, 804 { USB_DEVICE(0x0489, 0xe13a), .driver_info = BTUSB_MEDIATEK | 805 BTUSB_WIDEBAND_SPEECH }, 806 { USB_DEVICE(0x0489, 0xe0fa), .driver_info = BTUSB_MEDIATEK | 807 BTUSB_WIDEBAND_SPEECH }, 808 { USB_DEVICE(0x0489, 0xe10f), .driver_info = BTUSB_MEDIATEK | 809 BTUSB_WIDEBAND_SPEECH }, 810 { USB_DEVICE(0x0489, 0xe110), .driver_info = BTUSB_MEDIATEK | 811 BTUSB_WIDEBAND_SPEECH }, 812 { USB_DEVICE(0x0489, 0xe116), .driver_info = BTUSB_MEDIATEK | 813 BTUSB_WIDEBAND_SPEECH }, 814 { USB_DEVICE(0x13d3, 0x3588), .driver_info = BTUSB_MEDIATEK | 815 BTUSB_WIDEBAND_SPEECH }, 816 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK | 817 BTUSB_WIDEBAND_SPEECH }, 818 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK | 819 BTUSB_WIDEBAND_SPEECH }, 820 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK | 821 BTUSB_WIDEBAND_SPEECH }, 822 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK | 823 BTUSB_WIDEBAND_SPEECH }, 824 { USB_DEVICE(0x0e8d, 0x8c38), .driver_info = BTUSB_MEDIATEK | 825 BTUSB_WIDEBAND_SPEECH }, 826 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 827 BTUSB_WIDEBAND_SPEECH }, 828 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 829 BTUSB_WIDEBAND_SPEECH }, 830 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK | 831 BTUSB_WIDEBAND_SPEECH }, 832 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK | 833 BTUSB_WIDEBAND_SPEECH }, 834 { USB_DEVICE(0x13d3, 0x3609), .driver_info = BTUSB_MEDIATEK | 835 BTUSB_WIDEBAND_SPEECH }, 836 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK | 837 BTUSB_WIDEBAND_SPEECH }, 838 { USB_DEVICE(0x13d3, 0x3625), .driver_info = BTUSB_MEDIATEK | 839 BTUSB_WIDEBAND_SPEECH }, 840 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK | 841 BTUSB_WIDEBAND_SPEECH }, 842 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK | 843 BTUSB_WIDEBAND_SPEECH }, 844 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK | 845 BTUSB_WIDEBAND_SPEECH }, 846 { USB_DEVICE(0x13d3, 0x3631), .driver_info = BTUSB_MEDIATEK | 847 BTUSB_WIDEBAND_SPEECH }, 848 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK | 849 BTUSB_WIDEBAND_SPEECH }, 850 851 /* Additional Realtek 8723AE Bluetooth devices */ 852 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 853 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 854 855 /* Additional Realtek 8723BE Bluetooth devices */ 856 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 857 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 858 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 859 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 860 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 861 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 862 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 863 864 /* Additional Realtek 8723BU Bluetooth devices */ 865 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 866 { USB_DEVICE(0x2c0a, 0x8761), .driver_info = BTUSB_REALTEK }, 867 868 /* Additional Realtek 8723DE Bluetooth devices */ 869 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 870 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 871 872 /* Additional Realtek 8761BUV Bluetooth devices */ 873 { USB_DEVICE(0x2c4e, 0x0115), .driver_info = BTUSB_REALTEK | 874 BTUSB_WIDEBAND_SPEECH }, 875 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 876 BTUSB_WIDEBAND_SPEECH }, 877 { USB_DEVICE(0x2357, 0x0607), .driver_info = BTUSB_REALTEK | 878 BTUSB_WIDEBAND_SPEECH }, 879 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 880 BTUSB_WIDEBAND_SPEECH }, 881 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 882 BTUSB_WIDEBAND_SPEECH }, 883 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 884 BTUSB_WIDEBAND_SPEECH }, 885 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 886 BTUSB_WIDEBAND_SPEECH }, 887 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 888 BTUSB_WIDEBAND_SPEECH }, 889 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 890 BTUSB_WIDEBAND_SPEECH }, 891 { USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK | 892 BTUSB_WIDEBAND_SPEECH }, 893 { USB_DEVICE(0x37ad, 0x0600), .driver_info = BTUSB_REALTEK | 894 BTUSB_WIDEBAND_SPEECH }, 895 { USB_DEVICE(0x14b0, 0x047a), .driver_info = BTUSB_REALTEK | 896 BTUSB_WIDEBAND_SPEECH }, 897 898 /* Additional Realtek 8761CU Bluetooth devices */ 899 { USB_DEVICE(0x0b05, 0x1bef), .driver_info = BTUSB_REALTEK | 900 BTUSB_WIDEBAND_SPEECH }, 901 { USB_DEVICE(0x0b05, 0x1d70), .driver_info = BTUSB_REALTEK | 902 BTUSB_WIDEBAND_SPEECH }, 903 904 /* Additional Realtek 8821AE Bluetooth devices */ 905 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 906 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 907 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 908 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 909 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 910 911 /* Additional Realtek 8822BE Bluetooth devices */ 912 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 913 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 914 915 /* Additional Realtek 8822CE Bluetooth devices */ 916 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 917 BTUSB_WIDEBAND_SPEECH }, 918 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 919 BTUSB_WIDEBAND_SPEECH }, 920 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 921 BTUSB_WIDEBAND_SPEECH }, 922 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 923 BTUSB_WIDEBAND_SPEECH }, 924 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 925 BTUSB_WIDEBAND_SPEECH }, 926 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 927 BTUSB_WIDEBAND_SPEECH }, 928 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 929 BTUSB_WIDEBAND_SPEECH }, 930 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 931 BTUSB_WIDEBAND_SPEECH }, 932 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 933 BTUSB_WIDEBAND_SPEECH }, 934 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 935 BTUSB_WIDEBAND_SPEECH }, 936 { USB_DEVICE(0x1357, 0xc123), .driver_info = BTUSB_REALTEK | 937 BTUSB_WIDEBAND_SPEECH }, 938 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 939 BTUSB_WIDEBAND_SPEECH }, 940 941 /* Barrot Technology Bluetooth devices */ 942 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT }, 943 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT }, 944 945 /* Actions Semiconductor ATS2851 based devices */ 946 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 947 948 /* Silicon Wave based devices */ 949 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 950 951 { } /* Terminating entry */ 952 }; 953 954 /* The Bluetooth USB module build into some devices needs to be reset on resume, 955 * this is a problem with the platform (likely shutting off all power) not with 956 * the module itself. So we use a DMI list to match known broken platforms. 957 */ 958 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 959 { 960 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 961 .matches = { 962 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 963 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 964 }, 965 }, 966 { 967 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 968 .matches = { 969 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 970 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 971 }, 972 }, 973 { 974 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 975 .matches = { 976 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 977 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 978 }, 979 }, 980 {} 981 }; 982 983 struct qca_dump_info { 984 /* fields for dump collection */ 985 u16 id_vendor; 986 u16 id_product; 987 u32 fw_version; 988 u32 controller_id; 989 u32 ram_dump_size; 990 u16 ram_dump_seqno; 991 }; 992 993 struct btqca_data { 994 struct qca_dump_info qca_dump; 995 }; 996 997 #define BTUSB_MAX_ISOC_FRAMES 10 998 999 #define BTUSB_INTR_RUNNING 0 1000 #define BTUSB_BULK_RUNNING 1 1001 #define BTUSB_ISOC_RUNNING 2 1002 #define BTUSB_SUSPENDING 3 1003 #define BTUSB_DID_ISO_RESUME 4 1004 #define BTUSB_BOOTLOADER 5 1005 #define BTUSB_DOWNLOADING 6 1006 #define BTUSB_FIRMWARE_LOADED 7 1007 #define BTUSB_FIRMWARE_FAILED 8 1008 #define BTUSB_BOOTING 9 1009 #define BTUSB_DIAG_RUNNING 10 1010 #define BTUSB_OOB_WAKE_ENABLED 11 1011 #define BTUSB_HW_RESET_ACTIVE 12 1012 #define BTUSB_TX_WAIT_VND_EVT 13 1013 #define BTUSB_WAKEUP_AUTOSUSPEND 14 1014 #define BTUSB_USE_ALT3_FOR_WBS 15 1015 #define BTUSB_ALT6_CONTINUOUS_TX 16 1016 #define BTUSB_HW_SSR_ACTIVE 17 1017 #define BTUSB_WAKEUP_BROKEN 18 1018 #define BTUSB_RESET 19 1019 1020 #define BTUSB_PROTO_LEGACY 0x00 1021 #define BTUSB_PROTO_H4 0x01 1022 1023 struct btusb_data { 1024 struct hci_dev *hdev; 1025 struct usb_device *udev; 1026 struct usb_interface *intf; 1027 struct usb_interface *isoc; 1028 struct usb_interface *diag; 1029 unsigned isoc_ifnum; 1030 1031 unsigned long flags; 1032 1033 bool poll_sync; 1034 int intr_interval; 1035 struct work_struct work; 1036 struct work_struct waker; 1037 struct delayed_work rx_work; 1038 1039 struct sk_buff_head acl_q; 1040 1041 struct usb_anchor deferred; 1042 struct usb_anchor tx_anchor; 1043 int tx_in_flight; 1044 spinlock_t txlock; 1045 1046 struct usb_anchor intr_anchor; 1047 struct usb_anchor bulk_anchor; 1048 struct usb_anchor isoc_anchor; 1049 struct usb_anchor diag_anchor; 1050 struct usb_anchor ctrl_anchor; 1051 spinlock_t rxlock; 1052 1053 struct sk_buff *evt_skb; 1054 struct sk_buff *acl_skb; 1055 struct sk_buff *sco_skb; 1056 struct sk_buff *rx_skb; 1057 1058 struct usb_endpoint_descriptor *intr_ep; 1059 struct usb_endpoint_descriptor *bulk_tx_ep; 1060 struct usb_endpoint_descriptor *bulk_rx_ep; 1061 struct usb_endpoint_descriptor *isoc_tx_ep; 1062 struct usb_endpoint_descriptor *isoc_rx_ep; 1063 struct usb_endpoint_descriptor *diag_tx_ep; 1064 struct usb_endpoint_descriptor *diag_rx_ep; 1065 1066 struct gpio_desc *reset_gpio; 1067 1068 __u8 cmdreq_type; 1069 __u8 cmdreq; 1070 __u8 proto; 1071 1072 unsigned int sco_num; 1073 unsigned int air_mode; 1074 bool usb_alt6_packet_flow; 1075 int isoc_altsetting; 1076 int suspend_count; 1077 const struct usb_device_id *match_id; 1078 1079 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 1080 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 1081 int (*recv_intr)(struct btusb_data *data, void *buffer, int count); 1082 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 1083 1084 int (*setup_on_usb)(struct hci_dev *hdev); 1085 1086 int (*suspend)(struct hci_dev *hdev); 1087 int (*resume)(struct hci_dev *hdev); 1088 int (*disconnect)(struct hci_dev *hdev); 1089 1090 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 1091 }; 1092 1093 static void btusb_reset(struct hci_dev *hdev) 1094 { 1095 struct btusb_data *data; 1096 int err; 1097 1098 data = hci_get_drvdata(hdev); 1099 err = usb_autopm_get_interface(data->intf); 1100 if (err) { 1101 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 1102 return; 1103 } 1104 1105 if (test_and_set_bit(BTUSB_RESET, &data->flags)) 1106 usb_autopm_put_interface_no_suspend(data->intf); 1107 1108 bt_dev_err(hdev, "Resetting usb device."); 1109 usb_queue_reset_device(data->intf); 1110 } 1111 1112 static void btusb_intel_reset(struct hci_dev *hdev) 1113 { 1114 struct btusb_data *data = hci_get_drvdata(hdev); 1115 struct gpio_desc *reset_gpio = data->reset_gpio; 1116 struct btintel_data *intel_data = hci_get_priv(hdev); 1117 1118 if (intel_data->acpi_reset_method) { 1119 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 1120 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 1121 return; 1122 } 1123 1124 bt_dev_err(hdev, "Initiating acpi reset method"); 1125 /* If ACPI reset method fails, lets try with legacy GPIO 1126 * toggling 1127 */ 1128 if (!intel_data->acpi_reset_method(hdev)) { 1129 return; 1130 } 1131 } 1132 1133 if (!reset_gpio) { 1134 btusb_reset(hdev); 1135 return; 1136 } 1137 1138 /* 1139 * Toggle the hard reset line if the platform provides one. The reset 1140 * is going to yank the device off the USB and then replug. So doing 1141 * once is enough. The cleanup is handled correctly on the way out 1142 * (standard USB disconnect), and the new device is detected cleanly 1143 * and bound to the driver again like it should be. 1144 */ 1145 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1146 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1147 return; 1148 } 1149 1150 bt_dev_err(hdev, "Initiating HW reset via gpio"); 1151 gpiod_set_value_cansleep(reset_gpio, 1); 1152 msleep(100); 1153 gpiod_set_value_cansleep(reset_gpio, 0); 1154 } 1155 1156 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 1157 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 1158 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 1159 1160 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 1161 1162 struct rtk_dev_coredump_hdr { 1163 u8 type; 1164 u8 code; 1165 u8 reserved[2]; 1166 } __packed; 1167 1168 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 1169 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 1170 { 1171 struct sk_buff *skb; 1172 1173 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 1174 if (!skb) 1175 return; 1176 1177 skb_put_data(skb, hdr, sizeof(*hdr)); 1178 if (len) 1179 skb_put_data(skb, buf, len); 1180 1181 if (!hci_devcd_init(hdev, skb->len)) { 1182 hci_devcd_append(hdev, skb); 1183 hci_devcd_complete(hdev); 1184 } else { 1185 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 1186 kfree_skb(skb); 1187 } 1188 } 1189 1190 static void btusb_rtl_reset(struct hci_dev *hdev) 1191 { 1192 struct btusb_data *data = hci_get_drvdata(hdev); 1193 struct gpio_desc *reset_gpio = data->reset_gpio; 1194 struct rtk_dev_coredump_hdr hdr = { 1195 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1196 }; 1197 1198 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1199 1200 if (!reset_gpio) { 1201 btusb_reset(hdev); 1202 return; 1203 } 1204 1205 /* Toggle the hard reset line. The Realtek device is going to 1206 * yank itself off the USB and then replug. The cleanup is handled 1207 * correctly on the way out (standard USB disconnect), and the new 1208 * device is detected cleanly and bound to the driver again like 1209 * it should be. 1210 */ 1211 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1212 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1213 return; 1214 } 1215 1216 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1217 gpiod_set_value_cansleep(reset_gpio, 1); 1218 msleep(200); 1219 gpiod_set_value_cansleep(reset_gpio, 0); 1220 } 1221 1222 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1223 { 1224 struct rtk_dev_coredump_hdr hdr = { 1225 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1226 .code = code, 1227 }; 1228 1229 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1230 1231 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1232 } 1233 1234 static void btusb_qca_reset(struct hci_dev *hdev) 1235 { 1236 struct btusb_data *data = hci_get_drvdata(hdev); 1237 struct gpio_desc *reset_gpio = data->reset_gpio; 1238 1239 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1240 bt_dev_info(hdev, "Ramdump in progress, defer reset"); 1241 return; 1242 } 1243 1244 if (reset_gpio) { 1245 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1246 1247 /* Toggle the hard reset line. The qca bt device is going to 1248 * yank itself off the USB and then replug. The cleanup is handled 1249 * correctly on the way out (standard USB disconnect), and the new 1250 * device is detected cleanly and bound to the driver again like 1251 * it should be. 1252 */ 1253 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1254 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1255 return; 1256 } 1257 1258 gpiod_set_value_cansleep(reset_gpio, 0); 1259 msleep(200); 1260 gpiod_set_value_cansleep(reset_gpio, 1); 1261 1262 return; 1263 } 1264 1265 btusb_reset(hdev); 1266 } 1267 1268 static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb) 1269 { 1270 /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug 1271 * packets as ACL frames with connection handle 0x2EDC. These are not real 1272 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent 1273 * "ACL packet for unknown connection handle 3804" errors. 1274 */ 1275 if (skb->len >= 2) { 1276 u16 handle = get_unaligned_le16(skb->data); 1277 1278 if (handle == 0x2EDC) 1279 return HCI_DIAG_PKT; 1280 } 1281 1282 /* Use default packet type for other packets */ 1283 return hci_skb_pkt_type(skb); 1284 } 1285 1286 static inline void btusb_free_frags(struct btusb_data *data) 1287 { 1288 unsigned long flags; 1289 1290 spin_lock_irqsave(&data->rxlock, flags); 1291 1292 dev_kfree_skb_irq(data->evt_skb); 1293 data->evt_skb = NULL; 1294 1295 dev_kfree_skb_irq(data->acl_skb); 1296 data->acl_skb = NULL; 1297 1298 dev_kfree_skb_irq(data->sco_skb); 1299 data->sco_skb = NULL; 1300 1301 /* rx_skb may hold an ERR_PTR from a previous h4_recv_skb() call */ 1302 if (!IS_ERR(data->rx_skb)) 1303 dev_kfree_skb_irq(data->rx_skb); 1304 data->rx_skb = NULL; 1305 1306 spin_unlock_irqrestore(&data->rxlock, flags); 1307 } 1308 1309 static int btusb_recv_event(struct hci_dev *hdev, struct sk_buff *skb) 1310 { 1311 struct btusb_data *data = hci_get_drvdata(hdev); 1312 int err; 1313 1314 err = data->recv_event(hdev, skb); 1315 1316 if (data->intr_interval) { 1317 /* Trigger dequeue immediately if an event is received */ 1318 schedule_delayed_work(&data->rx_work, 0); 1319 } 1320 1321 return err; 1322 } 1323 1324 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1325 { 1326 struct sk_buff *skb; 1327 unsigned long flags; 1328 int err = 0; 1329 1330 spin_lock_irqsave(&data->rxlock, flags); 1331 skb = data->evt_skb; 1332 1333 while (count) { 1334 int len; 1335 1336 if (!skb) { 1337 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1338 if (!skb) { 1339 err = -ENOMEM; 1340 break; 1341 } 1342 1343 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1344 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1345 } 1346 1347 len = min_t(uint, hci_skb_expect(skb), count); 1348 skb_put_data(skb, buffer, len); 1349 1350 count -= len; 1351 buffer += len; 1352 hci_skb_expect(skb) -= len; 1353 1354 if (skb->len == HCI_EVENT_HDR_SIZE) { 1355 /* Complete event header */ 1356 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1357 1358 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1359 kfree_skb(skb); 1360 skb = NULL; 1361 1362 err = -EILSEQ; 1363 break; 1364 } 1365 } 1366 1367 if (!hci_skb_expect(skb)) { 1368 /* Each chunk should correspond to at least 1 or more 1369 * events so if there are still bytes left that doesn't 1370 * constitute a new event this is likely a bug in the 1371 * controller. 1372 */ 1373 if (count && count < HCI_EVENT_HDR_SIZE) { 1374 bt_dev_warn(data->hdev, 1375 "Unexpected continuation: %d bytes", 1376 count); 1377 count = 0; 1378 } 1379 1380 /* Complete frame */ 1381 btusb_recv_event(data->hdev, skb); 1382 skb = NULL; 1383 } 1384 } 1385 1386 data->evt_skb = skb; 1387 spin_unlock_irqrestore(&data->rxlock, flags); 1388 1389 return err; 1390 } 1391 1392 static int btusb_recv_acl(struct hci_dev *hdev, struct sk_buff *skb) 1393 { 1394 struct btusb_data *data = hci_get_drvdata(hdev); 1395 1396 /* Only queue ACL packet if intr_interval is set as it means 1397 * force_poll_sync has been enabled. 1398 */ 1399 if (!data->intr_interval) 1400 return data->recv_acl(hdev, skb); 1401 1402 skb_queue_tail(&data->acl_q, skb); 1403 schedule_delayed_work(&data->rx_work, data->intr_interval); 1404 1405 return 0; 1406 } 1407 1408 static int btusb_recv_frame(struct hci_dev *hdev, struct sk_buff *skb) 1409 { 1410 u8 pkt_type = hci_skb_pkt_type(skb); 1411 int ret; 1412 1413 switch (pkt_type) { 1414 case HCI_EVENT_PKT: 1415 ret = btusb_recv_event(hdev, skb); 1416 break; 1417 case HCI_ACLDATA_PKT: 1418 ret = btusb_recv_acl(hdev, skb); 1419 break; 1420 case HCI_SCODATA_PKT: 1421 case HCI_ISODATA_PKT: 1422 ret = hci_recv_frame(hdev, skb); 1423 break; 1424 default: 1425 dev_kfree_skb_irq(skb); 1426 ret = -EINVAL; 1427 break; 1428 } 1429 1430 return ret; 1431 } 1432 1433 /* Dispatch through the btusb_recv_* wrappers so that vendor specific 1434 * handling (data->recv_event, data->recv_acl) is preserved in H:4 mode. 1435 */ 1436 static const struct h4_recv_pkt btusb_recv_pkts[] = { 1437 { H4_RECV_ACL, .recv = btusb_recv_acl }, 1438 { H4_RECV_SCO, .recv = hci_recv_frame }, 1439 { H4_RECV_EVENT, .recv = btusb_recv_event }, 1440 { H4_RECV_ISO, .recv = hci_recv_frame }, 1441 }; 1442 1443 static int btusb_recv_h4(struct btusb_data *data, void *buffer, int count) 1444 { 1445 unsigned long flags; 1446 int err = 0; 1447 1448 spin_lock_irqsave(&data->rxlock, flags); 1449 data->rx_skb = h4_recv_skb(data->hdev, NULL, NULL, data->rx_skb, buffer, 1450 count, btusb_recv_pkts, 1451 ARRAY_SIZE(btusb_recv_pkts)); 1452 if (IS_ERR(data->rx_skb)) 1453 err = PTR_ERR(data->rx_skb); 1454 spin_unlock_irqrestore(&data->rxlock, flags); 1455 1456 return err; 1457 } 1458 1459 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1460 { 1461 struct sk_buff *skb; 1462 unsigned long flags; 1463 int err = 0; 1464 1465 if (data->proto == BTUSB_PROTO_H4) 1466 return btusb_recv_h4(data, buffer, count); 1467 1468 spin_lock_irqsave(&data->rxlock, flags); 1469 skb = data->acl_skb; 1470 1471 while (count) { 1472 int len; 1473 1474 if (!skb) { 1475 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1476 if (!skb) { 1477 err = -ENOMEM; 1478 break; 1479 } 1480 1481 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1482 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1483 } 1484 1485 len = min_t(uint, hci_skb_expect(skb), count); 1486 skb_put_data(skb, buffer, len); 1487 1488 count -= len; 1489 buffer += len; 1490 hci_skb_expect(skb) -= len; 1491 1492 if (skb->len == HCI_ACL_HDR_SIZE) { 1493 /* Complete ACL header */ 1494 hci_skb_expect(skb) = hci_acl_dlen(skb); 1495 1496 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1497 kfree_skb(skb); 1498 skb = NULL; 1499 1500 err = -EILSEQ; 1501 break; 1502 } 1503 } 1504 1505 if (!hci_skb_expect(skb)) { 1506 /* Complete frame */ 1507 btusb_recv_acl(data->hdev, skb); 1508 skb = NULL; 1509 } 1510 } 1511 1512 data->acl_skb = skb; 1513 spin_unlock_irqrestore(&data->rxlock, flags); 1514 1515 return err; 1516 } 1517 1518 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1519 struct hci_sco_hdr *hdr) 1520 { 1521 __u16 handle; 1522 1523 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1524 // Can't validate, userspace controls everything. 1525 return true; 1526 1527 /* 1528 * USB isochronous transfers are not designed to be reliable and may 1529 * lose fragments. When this happens, the next first fragment 1530 * encountered might actually be a continuation fragment. 1531 * Validate the handle to detect it and drop it, or else the upper 1532 * layer will get garbage for a while. 1533 */ 1534 1535 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1536 1537 switch (hci_conn_lookup_type(hdev, handle)) { 1538 case SCO_LINK: 1539 case ESCO_LINK: 1540 return true; 1541 default: 1542 return false; 1543 } 1544 } 1545 1546 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1547 { 1548 struct sk_buff *skb; 1549 unsigned long flags; 1550 int err = 0; 1551 1552 spin_lock_irqsave(&data->rxlock, flags); 1553 skb = data->sco_skb; 1554 1555 while (count) { 1556 int len; 1557 1558 if (!skb) { 1559 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1560 if (!skb) { 1561 err = -ENOMEM; 1562 break; 1563 } 1564 1565 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1566 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1567 } 1568 1569 len = min_t(uint, hci_skb_expect(skb), count); 1570 skb_put_data(skb, buffer, len); 1571 1572 count -= len; 1573 buffer += len; 1574 hci_skb_expect(skb) -= len; 1575 1576 if (skb->len == HCI_SCO_HDR_SIZE) { 1577 /* Complete SCO header */ 1578 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1579 1580 hci_skb_expect(skb) = hdr->dlen; 1581 1582 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1583 !btusb_validate_sco_handle(data->hdev, hdr)) { 1584 kfree_skb(skb); 1585 skb = NULL; 1586 1587 err = -EILSEQ; 1588 break; 1589 } 1590 } 1591 1592 if (!hci_skb_expect(skb)) { 1593 /* Complete frame */ 1594 hci_recv_frame(data->hdev, skb); 1595 skb = NULL; 1596 } 1597 } 1598 1599 data->sco_skb = skb; 1600 spin_unlock_irqrestore(&data->rxlock, flags); 1601 1602 return err; 1603 } 1604 1605 static void btusb_intr_complete(struct urb *urb) 1606 { 1607 struct hci_dev *hdev = urb->context; 1608 struct btusb_data *data = hci_get_drvdata(hdev); 1609 int err; 1610 1611 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1612 urb->actual_length); 1613 1614 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1615 return; 1616 1617 if (urb->status == 0) { 1618 hdev->stat.byte_rx += urb->actual_length; 1619 1620 if (data->recv_intr(data, urb->transfer_buffer, 1621 urb->actual_length) < 0) { 1622 bt_dev_err(hdev, "corrupted event packet"); 1623 hdev->stat.err_rx++; 1624 } 1625 } else if (urb->status == -ENOENT) { 1626 /* Avoid suspend failed when usb_kill_urb */ 1627 return; 1628 } 1629 1630 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1631 return; 1632 1633 usb_mark_last_busy(data->udev); 1634 usb_anchor_urb(urb, &data->intr_anchor); 1635 1636 err = usb_submit_urb(urb, GFP_ATOMIC); 1637 if (err < 0) { 1638 /* -EPERM: urb is being killed; 1639 * -ENODEV: device got disconnected 1640 */ 1641 if (err != -EPERM && err != -ENODEV) 1642 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1643 urb, -err); 1644 if (err != -EPERM) 1645 hci_cmd_sync_cancel(hdev, -err); 1646 usb_unanchor_urb(urb); 1647 } 1648 } 1649 1650 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1651 { 1652 struct btusb_data *data = hci_get_drvdata(hdev); 1653 struct urb *urb; 1654 unsigned char *buf; 1655 unsigned int pipe; 1656 int err, size; 1657 1658 BT_DBG("%s", hdev->name); 1659 1660 if (!data->intr_ep) 1661 return -ENODEV; 1662 1663 urb = usb_alloc_urb(0, mem_flags); 1664 if (!urb) 1665 return -ENOMEM; 1666 1667 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1668 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1669 /* Fake CSR devices don't seem to support sort-transter */ 1670 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1671 else 1672 /* Use maximum HCI Event size so the USB stack handles 1673 * ZPL/short-transfer automatically. 1674 */ 1675 size = HCI_MAX_EVENT_SIZE; 1676 1677 buf = kmalloc(size, mem_flags); 1678 if (!buf) { 1679 usb_free_urb(urb); 1680 return -ENOMEM; 1681 } 1682 1683 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1684 1685 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1686 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1687 1688 urb->transfer_flags |= URB_FREE_BUFFER; 1689 1690 usb_anchor_urb(urb, &data->intr_anchor); 1691 1692 err = usb_submit_urb(urb, mem_flags); 1693 if (err < 0) { 1694 if (err != -EPERM && err != -ENODEV) 1695 bt_dev_err(hdev, "urb %p submission failed (%d)", 1696 urb, -err); 1697 if (err != -EPERM) 1698 hci_cmd_sync_cancel(hdev, -err); 1699 usb_unanchor_urb(urb); 1700 } 1701 1702 /* Only initialize intr_interval if URB poll sync is enabled */ 1703 if (!data->poll_sync) 1704 goto done; 1705 1706 /* The units are frames (milliseconds) for full and low speed devices, 1707 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1708 * devices. 1709 * 1710 * This is done once on open/resume so it shouldn't change even if 1711 * force_poll_sync changes. 1712 */ 1713 switch (urb->dev->speed) { 1714 case USB_SPEED_SUPER_PLUS: 1715 case USB_SPEED_SUPER: /* units are 125us */ 1716 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1717 break; 1718 default: 1719 data->intr_interval = msecs_to_jiffies(urb->interval); 1720 break; 1721 } 1722 1723 done: 1724 usb_free_urb(urb); 1725 1726 return err; 1727 } 1728 1729 static void btusb_bulk_complete(struct urb *urb) 1730 { 1731 struct hci_dev *hdev = urb->context; 1732 struct btusb_data *data = hci_get_drvdata(hdev); 1733 int err; 1734 1735 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1736 urb->actual_length); 1737 1738 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1739 return; 1740 1741 if (urb->status == 0) { 1742 hdev->stat.byte_rx += urb->actual_length; 1743 1744 if (data->recv_bulk(data, urb->transfer_buffer, 1745 urb->actual_length) < 0) { 1746 bt_dev_err(hdev, "corrupted ACL packet"); 1747 hdev->stat.err_rx++; 1748 } 1749 } else if (urb->status == -ENOENT) { 1750 /* Avoid suspend failed when usb_kill_urb */ 1751 return; 1752 } 1753 1754 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1755 return; 1756 1757 usb_anchor_urb(urb, &data->bulk_anchor); 1758 usb_mark_last_busy(data->udev); 1759 1760 err = usb_submit_urb(urb, GFP_ATOMIC); 1761 if (err < 0) { 1762 /* -EPERM: urb is being killed; 1763 * -ENODEV: device got disconnected 1764 */ 1765 if (err != -EPERM && err != -ENODEV) 1766 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1767 urb, -err); 1768 usb_unanchor_urb(urb); 1769 } 1770 } 1771 1772 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1773 { 1774 struct btusb_data *data = hci_get_drvdata(hdev); 1775 struct urb *urb; 1776 unsigned char *buf; 1777 unsigned int pipe; 1778 int err, size = HCI_MAX_FRAME_SIZE; 1779 1780 BT_DBG("%s", hdev->name); 1781 1782 if (!data->bulk_rx_ep) 1783 return -ENODEV; 1784 1785 urb = usb_alloc_urb(0, mem_flags); 1786 if (!urb) 1787 return -ENOMEM; 1788 1789 buf = kmalloc(size, mem_flags); 1790 if (!buf) { 1791 usb_free_urb(urb); 1792 return -ENOMEM; 1793 } 1794 1795 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1796 1797 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1798 btusb_bulk_complete, hdev); 1799 1800 urb->transfer_flags |= URB_FREE_BUFFER; 1801 1802 usb_mark_last_busy(data->udev); 1803 usb_anchor_urb(urb, &data->bulk_anchor); 1804 1805 err = usb_submit_urb(urb, mem_flags); 1806 if (err < 0) { 1807 if (err != -EPERM && err != -ENODEV) 1808 bt_dev_err(hdev, "urb %p submission failed (%d)", 1809 urb, -err); 1810 usb_unanchor_urb(urb); 1811 } 1812 1813 usb_free_urb(urb); 1814 1815 return err; 1816 } 1817 1818 static void btusb_isoc_complete(struct urb *urb) 1819 { 1820 struct hci_dev *hdev = urb->context; 1821 struct btusb_data *data = hci_get_drvdata(hdev); 1822 int i, err; 1823 1824 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1825 urb->actual_length); 1826 1827 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1828 return; 1829 1830 if (urb->status == 0) { 1831 for (i = 0; i < urb->number_of_packets; i++) { 1832 unsigned int offset = urb->iso_frame_desc[i].offset; 1833 unsigned int length = urb->iso_frame_desc[i].actual_length; 1834 1835 if (urb->iso_frame_desc[i].status) 1836 continue; 1837 1838 hdev->stat.byte_rx += length; 1839 1840 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1841 length) < 0) { 1842 bt_dev_err(hdev, "corrupted SCO packet"); 1843 hdev->stat.err_rx++; 1844 } 1845 } 1846 } else if (urb->status == -ENOENT) { 1847 /* Avoid suspend failed when usb_kill_urb */ 1848 return; 1849 } 1850 1851 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1852 return; 1853 1854 usb_anchor_urb(urb, &data->isoc_anchor); 1855 1856 err = usb_submit_urb(urb, GFP_ATOMIC); 1857 if (err < 0) { 1858 /* -EPERM: urb is being killed; 1859 * -ENODEV: device got disconnected 1860 */ 1861 if (err != -EPERM && err != -ENODEV) 1862 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1863 urb, -err); 1864 usb_unanchor_urb(urb); 1865 } 1866 } 1867 1868 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1869 int mtu, struct btusb_data *data) 1870 { 1871 int i = 0, offset = 0; 1872 unsigned int interval; 1873 1874 BT_DBG("len %d mtu %d", len, mtu); 1875 1876 /* For mSBC ALT 6 settings some chips need to transmit the data 1877 * continuously without the zero length of USB packets. 1878 */ 1879 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1880 goto ignore_usb_alt6_packet_flow; 1881 1882 /* For mSBC ALT 6 setting the host will send the packet at continuous 1883 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1884 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1885 * To maintain the rate we send 63bytes of usb packets alternatively for 1886 * 7ms and 8ms to maintain the rate as 7.5ms. 1887 */ 1888 if (data->usb_alt6_packet_flow) { 1889 interval = 7; 1890 data->usb_alt6_packet_flow = false; 1891 } else { 1892 interval = 6; 1893 data->usb_alt6_packet_flow = true; 1894 } 1895 1896 for (i = 0; i < interval; i++) { 1897 urb->iso_frame_desc[i].offset = offset; 1898 urb->iso_frame_desc[i].length = offset; 1899 } 1900 1901 ignore_usb_alt6_packet_flow: 1902 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1903 urb->iso_frame_desc[i].offset = offset; 1904 urb->iso_frame_desc[i].length = len; 1905 i++; 1906 } 1907 1908 urb->number_of_packets = i; 1909 } 1910 1911 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1912 { 1913 int i, offset = 0; 1914 1915 BT_DBG("len %d mtu %d", len, mtu); 1916 1917 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1918 i++, offset += mtu, len -= mtu) { 1919 urb->iso_frame_desc[i].offset = offset; 1920 urb->iso_frame_desc[i].length = mtu; 1921 } 1922 1923 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1924 urb->iso_frame_desc[i].offset = offset; 1925 urb->iso_frame_desc[i].length = len; 1926 i++; 1927 } 1928 1929 urb->number_of_packets = i; 1930 } 1931 1932 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1933 { 1934 struct btusb_data *data = hci_get_drvdata(hdev); 1935 struct urb *urb; 1936 unsigned char *buf; 1937 unsigned int pipe; 1938 int err, size; 1939 1940 BT_DBG("%s", hdev->name); 1941 1942 if (!data->isoc_rx_ep) 1943 return -ENODEV; 1944 1945 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1946 if (!urb) 1947 return -ENOMEM; 1948 1949 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1950 BTUSB_MAX_ISOC_FRAMES; 1951 1952 buf = kmalloc(size, mem_flags); 1953 if (!buf) { 1954 usb_free_urb(urb); 1955 return -ENOMEM; 1956 } 1957 1958 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1959 1960 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1961 hdev, data->isoc_rx_ep->bInterval); 1962 1963 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1964 1965 __fill_isoc_descriptor(urb, size, 1966 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1967 1968 usb_anchor_urb(urb, &data->isoc_anchor); 1969 1970 err = usb_submit_urb(urb, mem_flags); 1971 if (err < 0) { 1972 if (err != -EPERM && err != -ENODEV) 1973 bt_dev_err(hdev, "urb %p submission failed (%d)", 1974 urb, -err); 1975 usb_unanchor_urb(urb); 1976 } 1977 1978 usb_free_urb(urb); 1979 1980 return err; 1981 } 1982 1983 static void btusb_diag_complete(struct urb *urb) 1984 { 1985 struct hci_dev *hdev = urb->context; 1986 struct btusb_data *data = hci_get_drvdata(hdev); 1987 int err; 1988 1989 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1990 urb->actual_length); 1991 1992 if (urb->status == 0) { 1993 struct sk_buff *skb; 1994 1995 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1996 if (skb) { 1997 skb_put_data(skb, urb->transfer_buffer, 1998 urb->actual_length); 1999 hci_recv_diag(hdev, skb); 2000 } 2001 } else if (urb->status == -ENOENT) { 2002 /* Avoid suspend failed when usb_kill_urb */ 2003 return; 2004 } 2005 2006 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 2007 return; 2008 2009 usb_anchor_urb(urb, &data->diag_anchor); 2010 usb_mark_last_busy(data->udev); 2011 2012 err = usb_submit_urb(urb, GFP_ATOMIC); 2013 if (err < 0) { 2014 /* -EPERM: urb is being killed; 2015 * -ENODEV: device got disconnected 2016 */ 2017 if (err != -EPERM && err != -ENODEV) 2018 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2019 urb, -err); 2020 usb_unanchor_urb(urb); 2021 } 2022 } 2023 2024 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 2025 { 2026 struct btusb_data *data = hci_get_drvdata(hdev); 2027 struct urb *urb; 2028 unsigned char *buf; 2029 unsigned int pipe; 2030 int err, size = HCI_MAX_FRAME_SIZE; 2031 2032 BT_DBG("%s", hdev->name); 2033 2034 if (!data->diag_rx_ep) 2035 return -ENODEV; 2036 2037 urb = usb_alloc_urb(0, mem_flags); 2038 if (!urb) 2039 return -ENOMEM; 2040 2041 buf = kmalloc(size, mem_flags); 2042 if (!buf) { 2043 usb_free_urb(urb); 2044 return -ENOMEM; 2045 } 2046 2047 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 2048 2049 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 2050 btusb_diag_complete, hdev); 2051 2052 urb->transfer_flags |= URB_FREE_BUFFER; 2053 2054 usb_mark_last_busy(data->udev); 2055 usb_anchor_urb(urb, &data->diag_anchor); 2056 2057 err = usb_submit_urb(urb, mem_flags); 2058 if (err < 0) { 2059 if (err != -EPERM && err != -ENODEV) 2060 bt_dev_err(hdev, "urb %p submission failed (%d)", 2061 urb, -err); 2062 usb_unanchor_urb(urb); 2063 } 2064 2065 usb_free_urb(urb); 2066 2067 return err; 2068 } 2069 2070 static void btusb_tx_complete(struct urb *urb) 2071 { 2072 struct sk_buff *skb = urb->context; 2073 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 2074 struct btusb_data *data = hci_get_drvdata(hdev); 2075 unsigned long flags; 2076 2077 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 2078 urb->actual_length); 2079 2080 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2081 goto done; 2082 2083 if (!urb->status) { 2084 hdev->stat.byte_tx += urb->transfer_buffer_length; 2085 } else { 2086 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 2087 hci_cmd_sync_cancel(hdev, -urb->status); 2088 hdev->stat.err_tx++; 2089 } 2090 2091 done: 2092 spin_lock_irqsave(&data->txlock, flags); 2093 data->tx_in_flight--; 2094 spin_unlock_irqrestore(&data->txlock, flags); 2095 2096 kfree(urb->setup_packet); 2097 2098 kfree_skb(skb); 2099 } 2100 2101 static void btusb_isoc_tx_complete(struct urb *urb) 2102 { 2103 struct sk_buff *skb = urb->context; 2104 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 2105 2106 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 2107 urb->actual_length); 2108 2109 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2110 goto done; 2111 2112 if (!urb->status) 2113 hdev->stat.byte_tx += urb->transfer_buffer_length; 2114 else 2115 hdev->stat.err_tx++; 2116 2117 done: 2118 kfree(urb->setup_packet); 2119 2120 kfree_skb(skb); 2121 } 2122 2123 static int btusb_open(struct hci_dev *hdev) 2124 { 2125 struct btusb_data *data = hci_get_drvdata(hdev); 2126 int err; 2127 2128 BT_DBG("%s", hdev->name); 2129 2130 err = usb_autopm_get_interface(data->intf); 2131 if (err < 0) 2132 return err; 2133 2134 /* Patching USB firmware files prior to starting any URBs of HCI path 2135 * It is more safe to use USB bulk channel for downloading USB patch 2136 */ 2137 if (data->setup_on_usb) { 2138 err = data->setup_on_usb(hdev); 2139 if (err < 0) 2140 goto setup_fail; 2141 } 2142 2143 data->intf->needs_remote_wakeup = 1; 2144 2145 if (data->proto == BTUSB_PROTO_LEGACY) { 2146 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 2147 goto done; 2148 2149 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 2150 if (err < 0) 2151 goto failed; 2152 } 2153 2154 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2155 if (err < 0) { 2156 usb_kill_anchored_urbs(&data->intr_anchor); 2157 goto failed; 2158 } 2159 2160 set_bit(BTUSB_BULK_RUNNING, &data->flags); 2161 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2162 2163 if (data->diag) { 2164 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 2165 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 2166 } 2167 2168 done: 2169 usb_autopm_put_interface(data->intf); 2170 return 0; 2171 2172 failed: 2173 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2174 setup_fail: 2175 usb_autopm_put_interface(data->intf); 2176 return err; 2177 } 2178 2179 static void btusb_stop_traffic(struct btusb_data *data) 2180 { 2181 usb_kill_anchored_urbs(&data->intr_anchor); 2182 usb_kill_anchored_urbs(&data->bulk_anchor); 2183 usb_kill_anchored_urbs(&data->isoc_anchor); 2184 usb_kill_anchored_urbs(&data->diag_anchor); 2185 usb_kill_anchored_urbs(&data->ctrl_anchor); 2186 } 2187 2188 static void btusb_prepare_reset(struct hci_dev *hdev) 2189 { 2190 struct btusb_data *data = hci_get_drvdata(hdev); 2191 2192 btusb_stop_traffic(data); 2193 usb_kill_anchored_urbs(&data->tx_anchor); 2194 } 2195 2196 static int btusb_close(struct hci_dev *hdev) 2197 { 2198 struct btusb_data *data = hci_get_drvdata(hdev); 2199 int err; 2200 2201 BT_DBG("%s", hdev->name); 2202 2203 cancel_work_sync(&data->work); 2204 cancel_work_sync(&data->waker); 2205 2206 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2207 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 2208 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2209 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 2210 2211 btusb_stop_traffic(data); 2212 2213 /* rx_work must only be canceled once the URBs that can rearm it are 2214 * gone, and it must be canceled synchronously since btusb_disconnect() 2215 * frees the btusb_data it dereferences right after hci_unregister_dev(). 2216 */ 2217 cancel_delayed_work_sync(&data->rx_work); 2218 2219 skb_queue_purge(&data->acl_q); 2220 2221 btusb_free_frags(data); 2222 2223 err = usb_autopm_get_interface(data->intf); 2224 if (err < 0) 2225 goto failed; 2226 2227 data->intf->needs_remote_wakeup = 0; 2228 2229 /* Enable remote wake up for auto-suspend */ 2230 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 2231 data->intf->needs_remote_wakeup = 1; 2232 2233 usb_autopm_put_interface(data->intf); 2234 2235 failed: 2236 usb_scuttle_anchored_urbs(&data->deferred); 2237 return 0; 2238 } 2239 2240 static int btusb_flush(struct hci_dev *hdev) 2241 { 2242 struct btusb_data *data = hci_get_drvdata(hdev); 2243 2244 BT_DBG("%s", hdev->name); 2245 2246 cancel_delayed_work_sync(&data->rx_work); 2247 2248 skb_queue_purge(&data->acl_q); 2249 2250 usb_kill_anchored_urbs(&data->tx_anchor); 2251 btusb_free_frags(data); 2252 2253 return 0; 2254 } 2255 2256 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2257 { 2258 struct btusb_data *data = hci_get_drvdata(hdev); 2259 struct urb *urb; 2260 unsigned int pipe; 2261 2262 if (!data->bulk_tx_ep) 2263 return ERR_PTR(-ENODEV); 2264 2265 if (data->proto == BTUSB_PROTO_H4) { 2266 /* The frame type is prepended in place, so the buffer must not 2267 * be shared with anyone else. 2268 */ 2269 if (skb_cow_head(skb, 1)) 2270 return ERR_PTR(-ENOMEM); 2271 } 2272 2273 urb = usb_alloc_urb(0, GFP_KERNEL); 2274 if (!urb) 2275 return ERR_PTR(-ENOMEM); 2276 2277 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2278 2279 if (data->proto == BTUSB_PROTO_H4) { 2280 /* Prepend skb with frame type */ 2281 memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1); 2282 } 2283 2284 usb_fill_bulk_urb(urb, data->udev, pipe, 2285 skb->data, skb->len, btusb_tx_complete, skb); 2286 2287 skb->dev = (void *)hdev; 2288 2289 return urb; 2290 } 2291 2292 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 2293 { 2294 struct btusb_data *data = hci_get_drvdata(hdev); 2295 struct usb_ctrlrequest *dr; 2296 struct urb *urb; 2297 unsigned int pipe; 2298 2299 if (data->proto == BTUSB_PROTO_H4) 2300 return alloc_bulk_urb(hdev, skb); 2301 2302 urb = usb_alloc_urb(0, GFP_KERNEL); 2303 if (!urb) 2304 return ERR_PTR(-ENOMEM); 2305 2306 dr = kmalloc_obj(*dr); 2307 if (!dr) { 2308 usb_free_urb(urb); 2309 return ERR_PTR(-ENOMEM); 2310 } 2311 2312 dr->bRequestType = data->cmdreq_type; 2313 dr->bRequest = data->cmdreq; 2314 dr->wIndex = 0; 2315 dr->wValue = 0; 2316 dr->wLength = __cpu_to_le16(skb->len); 2317 2318 pipe = usb_sndctrlpipe(data->udev, 0x00); 2319 2320 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2321 skb->data, skb->len, btusb_tx_complete, skb); 2322 2323 skb->dev = (void *)hdev; 2324 2325 return urb; 2326 } 2327 2328 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2329 { 2330 struct btusb_data *data = hci_get_drvdata(hdev); 2331 struct urb *urb; 2332 unsigned int pipe; 2333 2334 if (data->proto == BTUSB_PROTO_H4) 2335 return alloc_bulk_urb(hdev, skb); 2336 2337 if (!data->isoc_tx_ep) 2338 return ERR_PTR(-ENODEV); 2339 2340 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2341 if (!urb) 2342 return ERR_PTR(-ENOMEM); 2343 2344 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2345 2346 usb_fill_int_urb(urb, data->udev, pipe, 2347 skb->data, skb->len, btusb_isoc_tx_complete, 2348 skb, data->isoc_tx_ep->bInterval); 2349 2350 urb->transfer_flags = URB_ISO_ASAP; 2351 2352 if (data->isoc_altsetting == 6) 2353 __fill_isoc_descriptor_msbc(urb, skb->len, 2354 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2355 data); 2356 else 2357 __fill_isoc_descriptor(urb, skb->len, 2358 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2359 skb->dev = (void *)hdev; 2360 2361 return urb; 2362 } 2363 2364 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2365 { 2366 struct btusb_data *data = hci_get_drvdata(hdev); 2367 int err; 2368 2369 usb_anchor_urb(urb, &data->tx_anchor); 2370 2371 err = usb_submit_urb(urb, GFP_KERNEL); 2372 if (err < 0) { 2373 if (err != -EPERM && err != -ENODEV) 2374 bt_dev_err(hdev, "urb %p submission failed (%d)", 2375 urb, -err); 2376 kfree(urb->setup_packet); 2377 usb_unanchor_urb(urb); 2378 } else { 2379 usb_mark_last_busy(data->udev); 2380 } 2381 2382 usb_free_urb(urb); 2383 return err; 2384 } 2385 2386 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2387 { 2388 struct btusb_data *data = hci_get_drvdata(hdev); 2389 unsigned long flags; 2390 bool suspending; 2391 2392 spin_lock_irqsave(&data->txlock, flags); 2393 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2394 if (!suspending) 2395 data->tx_in_flight++; 2396 spin_unlock_irqrestore(&data->txlock, flags); 2397 2398 if (!suspending) 2399 return submit_tx_urb(hdev, urb); 2400 2401 usb_anchor_urb(urb, &data->deferred); 2402 schedule_work(&data->waker); 2403 2404 usb_free_urb(urb); 2405 return 0; 2406 } 2407 2408 static int submit_sco_urb(struct hci_dev *hdev, struct urb *urb) 2409 { 2410 struct btusb_data *data = hci_get_drvdata(hdev); 2411 2412 /* In H:4 mode SCO frames are carried over the bulk endpoint and 2413 * complete via btusb_tx_complete(), which decrements tx_in_flight, so 2414 * they have to be accounted for like any other bulk transfer. 2415 * Isochronous transfers use btusb_isoc_tx_complete() instead, which 2416 * does not, so they must not be counted. 2417 */ 2418 if (data->proto == BTUSB_PROTO_H4) 2419 return submit_or_queue_tx_urb(hdev, urb); 2420 2421 return submit_tx_urb(hdev, urb); 2422 } 2423 2424 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2425 { 2426 struct urb *urb; 2427 2428 BT_DBG("%s", hdev->name); 2429 2430 switch (hci_skb_pkt_type(skb)) { 2431 case HCI_COMMAND_PKT: 2432 urb = alloc_ctrl_urb(hdev, skb); 2433 if (IS_ERR(urb)) 2434 return PTR_ERR(urb); 2435 2436 hdev->stat.cmd_tx++; 2437 return submit_or_queue_tx_urb(hdev, urb); 2438 2439 case HCI_ACLDATA_PKT: 2440 urb = alloc_bulk_urb(hdev, skb); 2441 if (IS_ERR(urb)) 2442 return PTR_ERR(urb); 2443 2444 hdev->stat.acl_tx++; 2445 return submit_or_queue_tx_urb(hdev, urb); 2446 2447 case HCI_SCODATA_PKT: 2448 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2449 hci_conn_num(hdev, SCO_LINK) < 1) 2450 return -ENODEV; 2451 2452 urb = alloc_isoc_urb(hdev, skb); 2453 if (IS_ERR(urb)) 2454 return PTR_ERR(urb); 2455 2456 hdev->stat.sco_tx++; 2457 return submit_sco_urb(hdev, urb); 2458 2459 case HCI_ISODATA_PKT: 2460 urb = alloc_bulk_urb(hdev, skb); 2461 if (IS_ERR(urb)) 2462 return PTR_ERR(urb); 2463 2464 return submit_or_queue_tx_urb(hdev, urb); 2465 } 2466 2467 return -EILSEQ; 2468 } 2469 2470 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2471 { 2472 struct btusb_data *data = hci_get_drvdata(hdev); 2473 2474 BT_DBG("%s evt %d", hdev->name, evt); 2475 2476 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2477 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2478 data->air_mode = evt; 2479 schedule_work(&data->work); 2480 } 2481 } 2482 2483 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2484 { 2485 struct btusb_data *data = hci_get_drvdata(hdev); 2486 struct usb_interface *intf = data->isoc; 2487 struct usb_endpoint_descriptor *ep_desc; 2488 int i, err; 2489 2490 if (!data->isoc) 2491 return -ENODEV; 2492 2493 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2494 if (err < 0) { 2495 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2496 return err; 2497 } 2498 2499 data->isoc_altsetting = altsetting; 2500 2501 data->isoc_tx_ep = NULL; 2502 data->isoc_rx_ep = NULL; 2503 2504 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2505 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2506 2507 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2508 data->isoc_tx_ep = ep_desc; 2509 continue; 2510 } 2511 2512 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2513 data->isoc_rx_ep = ep_desc; 2514 continue; 2515 } 2516 } 2517 2518 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2519 bt_dev_err(hdev, "invalid SCO descriptors"); 2520 return -ENODEV; 2521 } 2522 2523 return 0; 2524 } 2525 2526 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2527 { 2528 struct btusb_data *data = hci_get_drvdata(hdev); 2529 int err; 2530 2531 if (data->isoc_altsetting != new_alts) { 2532 unsigned long flags; 2533 2534 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2535 usb_kill_anchored_urbs(&data->isoc_anchor); 2536 2537 /* When isochronous alternate setting needs to be 2538 * changed, because SCO connection has been added 2539 * or removed, a packet fragment may be left in the 2540 * reassembling state. This could lead to wrongly 2541 * assembled fragments. 2542 * 2543 * Clear outstanding fragment when selecting a new 2544 * alternate setting. 2545 */ 2546 spin_lock_irqsave(&data->rxlock, flags); 2547 dev_kfree_skb_irq(data->sco_skb); 2548 data->sco_skb = NULL; 2549 spin_unlock_irqrestore(&data->rxlock, flags); 2550 2551 err = __set_isoc_interface(hdev, new_alts); 2552 if (err < 0) 2553 return err; 2554 } 2555 2556 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2557 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2558 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2559 else 2560 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2561 } 2562 2563 return 0; 2564 } 2565 2566 static struct usb_host_interface * 2567 btusb_find_altsetting(struct usb_interface *intf, int alt) 2568 { 2569 int i; 2570 2571 BT_DBG("Looking for Alt no :%d", alt); 2572 2573 if (!intf) 2574 return NULL; 2575 2576 for (i = 0; i < intf->num_altsetting; i++) { 2577 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2578 return &intf->altsetting[i]; 2579 } 2580 2581 return NULL; 2582 } 2583 2584 static void btusb_work(struct work_struct *work) 2585 { 2586 struct btusb_data *data = container_of(work, struct btusb_data, work); 2587 struct hci_dev *hdev = data->hdev; 2588 int new_alts = 0; 2589 int err; 2590 2591 /* In H:4 mode SCO/ISO data is carried over the bulk endpoints, so 2592 * there is no isochronous interface to resume or to switch alternate 2593 * settings on. 2594 */ 2595 if (data->proto == BTUSB_PROTO_H4) 2596 return; 2597 2598 if (data->sco_num > 0) { 2599 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2600 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2601 if (err < 0) { 2602 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2603 usb_kill_anchored_urbs(&data->isoc_anchor); 2604 return; 2605 } 2606 2607 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2608 } 2609 2610 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2611 if (hdev->voice_setting & 0x0020) { 2612 static const int alts[3] = { 2, 4, 5 }; 2613 unsigned int sco_idx; 2614 2615 sco_idx = min_t(unsigned int, data->sco_num - 1, 2616 ARRAY_SIZE(alts) - 1); 2617 new_alts = alts[sco_idx]; 2618 } else { 2619 new_alts = data->sco_num; 2620 } 2621 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2622 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2623 * many adapters do not support it. Alt 1 appears to 2624 * work for all adapters that do not have alt 6, and 2625 * which work with WBS at all. Some devices prefer 2626 * alt 3 (HCI payload >= 60 Bytes let air packet 2627 * data satisfy 60 bytes), requiring 2628 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2629 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2630 */ 2631 if (btusb_find_altsetting(data->isoc, 6)) 2632 new_alts = 6; 2633 else if (btusb_find_altsetting(data->isoc, 3) && 2634 hdev->sco_mtu >= 72 && 2635 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2636 new_alts = 3; 2637 else 2638 new_alts = 1; 2639 } 2640 2641 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2642 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2643 } else { 2644 usb_kill_anchored_urbs(&data->isoc_anchor); 2645 2646 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2647 __set_isoc_interface(hdev, 0); 2648 2649 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2650 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2651 } 2652 } 2653 2654 static void btusb_waker(struct work_struct *work) 2655 { 2656 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2657 int err; 2658 2659 err = usb_autopm_get_interface(data->intf); 2660 if (err < 0) 2661 return; 2662 2663 usb_autopm_put_interface(data->intf); 2664 } 2665 2666 static void btusb_rx_work(struct work_struct *work) 2667 { 2668 struct btusb_data *data = container_of(work, struct btusb_data, 2669 rx_work.work); 2670 struct sk_buff *skb; 2671 2672 /* Dequeue ACL data received during the interval */ 2673 while ((skb = skb_dequeue(&data->acl_q))) 2674 data->recv_acl(data->hdev, skb); 2675 } 2676 2677 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2678 { 2679 struct sk_buff *skb; 2680 u8 val = 0x00; 2681 2682 BT_DBG("%s", hdev->name); 2683 2684 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2685 if (IS_ERR(skb)) 2686 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2687 else 2688 kfree_skb(skb); 2689 2690 return 0; 2691 } 2692 2693 static int btusb_setup_csr(struct hci_dev *hdev) 2694 { 2695 struct btusb_data *data = hci_get_drvdata(hdev); 2696 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2697 struct hci_rp_read_local_version *rp; 2698 struct sk_buff *skb; 2699 bool is_fake = false; 2700 int ret; 2701 2702 BT_DBG("%s", hdev->name); 2703 2704 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2705 HCI_INIT_TIMEOUT); 2706 if (IS_ERR(skb)) { 2707 int err = PTR_ERR(skb); 2708 2709 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2710 return err; 2711 } 2712 2713 rp = skb_pull_data(skb, sizeof(*rp)); 2714 if (!rp) { 2715 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2716 kfree_skb(skb); 2717 return -EIO; 2718 } 2719 2720 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2721 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2722 2723 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2724 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2725 le16_to_cpu(rp->manufacturer)); 2726 2727 /* Detect a wide host of Chinese controllers that aren't CSR. 2728 * 2729 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2730 * 2731 * The main thing they have in common is that these are really popular low-cost 2732 * options that support newer Bluetooth versions but rely on heavy VID/PID 2733 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2734 * 2735 * We detect actual CSR devices by checking that the HCI manufacturer code 2736 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2737 * HCI rev values always match. As they both store the firmware number. 2738 */ 2739 if (le16_to_cpu(rp->manufacturer) != 10 || 2740 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2741 is_fake = true; 2742 2743 /* Known legit CSR firmware build numbers and their supported BT versions: 2744 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2745 * - 1.2 (0x2) -> 0x04d9, 0x0529 2746 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2747 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2748 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2749 * 2750 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2751 * support BT 1.1 only; so it's a dead giveaway when some 2752 * third-party BT 4.0 dongle reuses it. 2753 */ 2754 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2755 rp->hci_ver > BLUETOOTH_VER_1_1) 2756 is_fake = true; 2757 2758 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2759 rp->hci_ver > BLUETOOTH_VER_1_2) 2760 is_fake = true; 2761 2762 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2763 rp->hci_ver > BLUETOOTH_VER_2_0) 2764 is_fake = true; 2765 2766 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2767 rp->hci_ver > BLUETOOTH_VER_2_1) 2768 is_fake = true; 2769 2770 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2771 rp->hci_ver > BLUETOOTH_VER_4_0) 2772 is_fake = true; 2773 2774 /* Other clones which beat all the above checks */ 2775 else if (bcdDevice == 0x0134 && 2776 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2777 rp->hci_ver == BLUETOOTH_VER_2_0) 2778 is_fake = true; 2779 2780 if (is_fake) { 2781 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2782 2783 /* Generally these clones have big discrepancies between 2784 * advertised features and what's actually supported. 2785 * Probably will need to be expanded in the future; 2786 * without these the controller will lock up. 2787 */ 2788 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 2789 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 2790 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL); 2791 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER); 2792 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING); 2793 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE); 2794 2795 /* Clear the reset quirk since this is not an actual 2796 * early Bluetooth 1.1 device from CSR. 2797 */ 2798 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 2799 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 2800 2801 /* 2802 * Special workaround for these BT 4.0 chip clones, and potentially more: 2803 * 2804 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2805 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2806 * 2807 * These controllers are really messed-up. 2808 * 2809 * 1. Their bulk RX endpoint will never report any data unless 2810 * the device was suspended at least once (yes, really). 2811 * 2. They will not wakeup when autosuspended and receiving data 2812 * on their bulk RX endpoint from e.g. a keyboard or mouse 2813 * (IOW remote-wakeup support is broken for the bulk endpoint). 2814 * 2815 * To fix 1. enable runtime-suspend, force-suspend the 2816 * HCI and then wake-it up by disabling runtime-suspend. 2817 * 2818 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2819 * will still be autosuspended when it is not open. 2820 * 2821 * -- 2822 * 2823 * Because these are widespread problems we prefer generic solutions; so 2824 * apply this initialization quirk to every controller that gets here, 2825 * it should be harmless. The alternative is to not work at all. 2826 */ 2827 pm_runtime_allow(&data->udev->dev); 2828 2829 ret = pm_runtime_suspend(&data->udev->dev); 2830 if (ret >= 0) 2831 msleep(200); 2832 else 2833 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2834 2835 pm_runtime_forbid(&data->udev->dev); 2836 2837 device_set_wakeup_capable(&data->udev->dev, false); 2838 2839 /* Re-enable autosuspend if this was requested */ 2840 if (enable_autosuspend) 2841 usb_enable_autosuspend(data->udev); 2842 } 2843 2844 kfree_skb(skb); 2845 2846 return 0; 2847 } 2848 2849 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2850 { 2851 struct sk_buff *skb; 2852 struct hci_event_hdr *hdr; 2853 struct hci_ev_cmd_complete *evt; 2854 2855 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2856 if (!skb) 2857 return -ENOMEM; 2858 2859 hdr = skb_put(skb, sizeof(*hdr)); 2860 hdr->evt = HCI_EV_CMD_COMPLETE; 2861 hdr->plen = sizeof(*evt) + 1; 2862 2863 evt = skb_put(skb, sizeof(*evt)); 2864 evt->ncmd = 0x01; 2865 evt->opcode = cpu_to_le16(opcode); 2866 2867 skb_put_u8(skb, 0x00); 2868 2869 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2870 2871 return hci_recv_frame(hdev, skb); 2872 } 2873 2874 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2875 int count) 2876 { 2877 struct hci_dev *hdev = data->hdev; 2878 2879 /* When the device is in bootloader mode, then it can send 2880 * events via the bulk endpoint. These events are treated the 2881 * same way as the ones received from the interrupt endpoint. 2882 * 2883 * In H:4 mode there is no interrupt endpoint and every frame on the 2884 * bulk endpoint carries an H:4 header, including the ones sent by the 2885 * bootloader, so the regular decoding applies. 2886 */ 2887 if (data->proto == BTUSB_PROTO_LEGACY && 2888 btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2889 return data->recv_intr(data, buffer, count); 2890 2891 return btusb_recv_bulk(data, buffer, count); 2892 } 2893 2894 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2895 { 2896 struct urb *urb; 2897 2898 BT_DBG("%s", hdev->name); 2899 2900 switch (hci_skb_pkt_type(skb)) { 2901 case HCI_COMMAND_PKT: 2902 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2903 struct hci_command_hdr *cmd = (void *)skb->data; 2904 __u16 opcode = le16_to_cpu(cmd->opcode); 2905 2906 /* When in bootloader mode and the command 0xfc09 2907 * is received, it needs to be send down the 2908 * bulk endpoint. So allocate a bulk URB instead. 2909 */ 2910 if (opcode == 0xfc09) 2911 urb = alloc_bulk_urb(hdev, skb); 2912 else 2913 urb = alloc_ctrl_urb(hdev, skb); 2914 2915 /* When the BTINTEL_HCI_OP_RESET command is issued to 2916 * boot into the operational firmware, it will actually 2917 * not send a command complete event. To keep the flow 2918 * control working inject that event here. 2919 */ 2920 if (opcode == BTINTEL_HCI_OP_RESET) 2921 inject_cmd_complete(hdev, opcode); 2922 } else { 2923 urb = alloc_ctrl_urb(hdev, skb); 2924 } 2925 if (IS_ERR(urb)) 2926 return PTR_ERR(urb); 2927 2928 hdev->stat.cmd_tx++; 2929 return submit_or_queue_tx_urb(hdev, urb); 2930 2931 case HCI_ACLDATA_PKT: 2932 urb = alloc_bulk_urb(hdev, skb); 2933 if (IS_ERR(urb)) 2934 return PTR_ERR(urb); 2935 2936 hdev->stat.acl_tx++; 2937 return submit_or_queue_tx_urb(hdev, urb); 2938 2939 case HCI_SCODATA_PKT: 2940 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2941 hci_conn_num(hdev, SCO_LINK) < 1) 2942 return -ENODEV; 2943 2944 urb = alloc_isoc_urb(hdev, skb); 2945 if (IS_ERR(urb)) 2946 return PTR_ERR(urb); 2947 2948 hdev->stat.sco_tx++; 2949 return submit_sco_urb(hdev, urb); 2950 2951 case HCI_ISODATA_PKT: 2952 urb = alloc_bulk_urb(hdev, skb); 2953 if (IS_ERR(urb)) 2954 return PTR_ERR(urb); 2955 2956 return submit_or_queue_tx_urb(hdev, urb); 2957 } 2958 2959 return -EILSEQ; 2960 } 2961 2962 static int btusb_setup_realtek(struct hci_dev *hdev) 2963 { 2964 struct btusb_data *data = hci_get_drvdata(hdev); 2965 int ret; 2966 2967 ret = btrtl_setup_realtek(hdev); 2968 2969 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2970 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2971 2972 return ret; 2973 } 2974 2975 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2976 { 2977 if (skb->len >= HCI_EVENT_HDR_SIZE + 1 && 2978 skb->data[0] == HCI_EV_VENDOR && 2979 skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2980 struct rtk_dev_coredump_hdr hdr = { 2981 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2982 }; 2983 2984 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2985 skb->len); 2986 2987 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2988 kfree_skb(skb); 2989 2990 return 0; 2991 } 2992 2993 return hci_recv_frame(hdev, skb); 2994 } 2995 2996 static void btusb_mtk_claim_iso_intf(struct btusb_data *data) 2997 { 2998 struct btmtk_data *btmtk_data; 2999 int err; 3000 3001 if (!data->hdev) 3002 return; 3003 3004 btmtk_data = hci_get_priv(data->hdev); 3005 if (!btmtk_data) 3006 return; 3007 3008 if (!btmtk_data->isopkt_intf) { 3009 bt_dev_err(data->hdev, "Can't claim NULL iso interface"); 3010 return; 3011 } 3012 3013 /* 3014 * The function usb_driver_claim_interface() is documented to need 3015 * locks held if it's not called from a probe routine. The code here 3016 * is called from the hci_power_on workqueue, so grab the lock. 3017 */ 3018 device_lock(&btmtk_data->isopkt_intf->dev); 3019 err = usb_driver_claim_interface(&btusb_driver, 3020 btmtk_data->isopkt_intf, data); 3021 device_unlock(&btmtk_data->isopkt_intf->dev); 3022 if (err < 0) { 3023 btmtk_data->isopkt_intf = NULL; 3024 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err); 3025 return; 3026 } 3027 3028 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 3029 init_usb_anchor(&btmtk_data->isopkt_anchor); 3030 } 3031 3032 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev) 3033 { 3034 struct btmtk_data *btmtk_data; 3035 3036 if (!hdev) 3037 return; 3038 3039 btmtk_data = hci_get_priv(hdev); 3040 if (!btmtk_data) 3041 return; 3042 3043 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 3044 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); 3045 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); 3046 3047 if (btmtk_data->isopkt_skb) { 3048 dev_kfree_skb_irq(btmtk_data->isopkt_skb); 3049 btmtk_data->isopkt_skb = NULL; 3050 } 3051 3052 if (btmtk_data->isopkt_intf) { 3053 usb_set_intfdata(btmtk_data->isopkt_intf, NULL); 3054 usb_driver_release_interface(&btusb_driver, 3055 btmtk_data->isopkt_intf); 3056 btmtk_data->isopkt_intf = NULL; 3057 } 3058 } 3059 3060 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 3061 } 3062 3063 static int btusb_mtk_disconnect(struct hci_dev *hdev) 3064 { 3065 /* This function describes the specific additional steps taken by MediaTek 3066 * when Bluetooth usb driver's resume function is called. 3067 */ 3068 btusb_mtk_release_iso_intf(hdev); 3069 3070 return 0; 3071 } 3072 3073 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 3074 { 3075 struct btusb_data *data = hci_get_drvdata(hdev); 3076 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 3077 int err; 3078 3079 /* It's MediaTek specific bluetooth reset mechanism via USB */ 3080 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) { 3081 bt_dev_err(hdev, "last reset failed? Not resetting again"); 3082 return -EBUSY; 3083 } 3084 3085 err = usb_autopm_get_interface(data->intf); 3086 if (err < 0) { 3087 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 3088 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 3089 return err; 3090 } 3091 3092 /* Release MediaTek ISO data interface */ 3093 btusb_mtk_release_iso_intf(hdev); 3094 3095 btusb_prepare_reset(hdev); 3096 3097 /* Toggle the hard reset line. The MediaTek device is going to 3098 * yank itself off the USB and then replug. The cleanup is handled 3099 * correctly on the way out (standard USB disconnect), and the new 3100 * device is detected cleanly and bound to the driver again like 3101 * it should be. 3102 */ 3103 if (data->reset_gpio) { 3104 gpiod_set_value_cansleep(data->reset_gpio, 1); 3105 msleep(200); 3106 gpiod_set_value_cansleep(data->reset_gpio, 0); 3107 return 0; 3108 } 3109 3110 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); 3111 3112 if (test_and_set_bit(BTUSB_RESET, &data->flags)) { 3113 bt_dev_err(hdev, "last usb reset failed? Resetting again"); 3114 usb_autopm_put_interface_no_suspend(data->intf); 3115 } 3116 3117 usb_queue_reset_device(data->intf); 3118 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 3119 3120 return err; 3121 } 3122 3123 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3124 { 3125 struct urb *urb; 3126 3127 BT_DBG("%s", hdev->name); 3128 3129 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) { 3130 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); 3131 if (IS_ERR(urb)) 3132 return PTR_ERR(urb); 3133 3134 return submit_or_queue_tx_urb(hdev, urb); 3135 } else { 3136 return btusb_send_frame(hdev, skb); 3137 } 3138 } 3139 3140 static inline bool platform_is_ryzen(void) 3141 { 3142 #ifdef CONFIG_X86 3143 return boot_cpu_has(X86_FEATURE_ZEN); 3144 #else 3145 return false; 3146 #endif 3147 } 3148 3149 static inline bool is_direct_child_of_root_hub(struct usb_device *udev) 3150 { 3151 return udev->parent == udev->bus->root_hub; 3152 } 3153 3154 static int btusb_mtk_setup(struct hci_dev *hdev) 3155 { 3156 struct btusb_data *data = hci_get_drvdata(hdev); 3157 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 3158 int err; 3159 3160 /* MediaTek WMT vendor cmd requiring below USB resources to 3161 * complete the handshake. 3162 */ 3163 btmtk_data->drv_name = btusb_driver.name; 3164 btmtk_data->intf = data->intf; 3165 btmtk_data->udev = data->udev; 3166 btmtk_data->ctrl_anchor = &data->ctrl_anchor; 3167 btmtk_data->reset_sync = btusb_mtk_reset; 3168 3169 /* Claim ISO data interface and endpoint */ 3170 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 3171 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); 3172 btusb_mtk_claim_iso_intf(data); 3173 } 3174 3175 err = btmtk_usb_setup(hdev); 3176 if (err) 3177 return err; 3178 3179 switch (btmtk_data->dev_id) { 3180 case 0x7922: 3181 case 0x7925: 3182 /* 3183 * All reports seen to be relevant to Ryzen-based laptops. These 3184 * NICs are usually used as OEM components thanks to some sort 3185 * of reference designs. 3186 * 3187 * Their popularity on other platforms is unclear. While there 3188 * is still a chance that the quirk may exist on other 3189 * platforms, be cautious and only apply the quirk to direct 3190 * children of Ryzen platforms's root hubs for the time being. 3191 * 3192 * In most cases the root hub is on the SoC or PCH, which needs 3193 * the quirk. Unfortunately, this can't distinguish root hubs on 3194 * PCIe add-in cards. Such roughness should be acceptable, as 3195 * PCIe USB controller add-in cards are less commonly used 3196 * nowadays. On the other hand, applying the quirk doesn't hurt 3197 * any functionalities either, as the device can still be used 3198 * as a wakeup source if desired. 3199 * 3200 * Theoretically, we could retrieve the root hub's PCI vendor ID 3201 * with some hierarchy magic, but that's too intrusive... 3202 */ 3203 if (platform_is_ryzen() && is_direct_child_of_root_hub(data->udev)) 3204 set_bit(BTUSB_WAKEUP_BROKEN, &data->flags); 3205 break; 3206 } 3207 3208 return 0; 3209 } 3210 3211 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3212 { 3213 int ret; 3214 3215 ret = btmtk_usb_shutdown(hdev); 3216 3217 /* Release MediaTek iso interface after shutdown */ 3218 btusb_mtk_release_iso_intf(hdev); 3219 3220 return ret; 3221 } 3222 3223 #ifdef CONFIG_PM 3224 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3225 static int marvell_config_oob_wake(struct hci_dev *hdev) 3226 { 3227 struct sk_buff *skb; 3228 struct btusb_data *data = hci_get_drvdata(hdev); 3229 struct device *dev = &data->udev->dev; 3230 u16 pin, gap, opcode; 3231 int ret; 3232 u8 cmd[5]; 3233 3234 /* Move on if no wakeup pin specified */ 3235 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3236 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3237 return 0; 3238 3239 /* Vendor specific command to configure a GPIO as wake-up pin */ 3240 opcode = hci_opcode_pack(0x3F, 0x59); 3241 cmd[0] = opcode & 0xFF; 3242 cmd[1] = opcode >> 8; 3243 cmd[2] = 2; /* length of parameters that follow */ 3244 cmd[3] = pin; 3245 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3246 3247 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3248 if (!skb) { 3249 bt_dev_err(hdev, "%s: No memory", __func__); 3250 return -ENOMEM; 3251 } 3252 3253 skb_put_data(skb, cmd, sizeof(cmd)); 3254 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3255 3256 ret = btusb_send_frame(hdev, skb); 3257 if (ret) { 3258 bt_dev_err(hdev, "%s: configuration failed", __func__); 3259 kfree_skb(skb); 3260 return ret; 3261 } 3262 3263 return 0; 3264 } 3265 #else 3266 static inline int marvell_config_oob_wake(struct hci_dev *hdev) 3267 { 3268 return 0; 3269 } 3270 #endif 3271 3272 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3273 const bdaddr_t *bdaddr) 3274 { 3275 struct sk_buff *skb; 3276 u8 buf[8]; 3277 long ret; 3278 3279 buf[0] = 0xfe; 3280 buf[1] = sizeof(bdaddr_t); 3281 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3282 3283 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3284 if (IS_ERR(skb)) { 3285 ret = PTR_ERR(skb); 3286 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3287 ret); 3288 return ret; 3289 } 3290 kfree_skb(skb); 3291 3292 return 0; 3293 } 3294 3295 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3296 const bdaddr_t *bdaddr) 3297 { 3298 struct sk_buff *skb; 3299 u8 buf[10]; 3300 long ret; 3301 3302 buf[0] = 0x01; 3303 buf[1] = 0x01; 3304 buf[2] = 0x00; 3305 buf[3] = sizeof(bdaddr_t); 3306 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3307 3308 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3309 if (IS_ERR(skb)) { 3310 ret = PTR_ERR(skb); 3311 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3312 return ret; 3313 } 3314 kfree_skb(skb); 3315 3316 return 0; 3317 } 3318 3319 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3320 const bdaddr_t *bdaddr) 3321 { 3322 bdaddr_t bdaddr_swapped; 3323 struct sk_buff *skb; 3324 long ret; 3325 3326 baswap(&bdaddr_swapped, bdaddr); 3327 3328 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(bdaddr_swapped), 3329 &bdaddr_swapped, HCI_EV_CMD_COMPLETE, 3330 HCI_INIT_TIMEOUT); 3331 if (IS_ERR(skb)) { 3332 ret = PTR_ERR(skb); 3333 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3334 return ret; 3335 } 3336 kfree_skb(skb); 3337 3338 return 0; 3339 } 3340 3341 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3342 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3343 #define QCA_MEMDUMP_VSE_CLASS 0x01 3344 #define QCA_MEMDUMP_MSG_TYPE 0x08 3345 #define QCA_MEMDUMP_PKT_SIZE 248 3346 #define QCA_LAST_SEQUENCE_NUM 0xffff 3347 3348 struct qca_dump_hdr { 3349 u8 vse_class; 3350 u8 msg_type; 3351 __le16 seqno; 3352 u8 reserved; 3353 union { 3354 DECLARE_FLEX_ARRAY(u8, data); 3355 struct { 3356 __le32 ram_dump_size; 3357 DECLARE_FLEX_ARRAY(u8, data0); 3358 } __packed; 3359 }; 3360 } __packed; 3361 3362 3363 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3364 { 3365 char buf[128]; 3366 struct btqca_data *btqca_data = hci_get_priv(hdev); 3367 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump; 3368 3369 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3370 qca_dump_ptr->controller_id); 3371 skb_put_data(skb, buf, strlen(buf)); 3372 3373 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3374 qca_dump_ptr->fw_version); 3375 skb_put_data(skb, buf, strlen(buf)); 3376 3377 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3378 btusb_driver.name); 3379 skb_put_data(skb, buf, strlen(buf)); 3380 3381 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3382 qca_dump_ptr->id_vendor, qca_dump_ptr->id_product); 3383 skb_put_data(skb, buf, strlen(buf)); 3384 3385 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3386 hdev->lmp_subver); 3387 skb_put_data(skb, buf, strlen(buf)); 3388 } 3389 3390 static void btusb_coredump_qca(struct hci_dev *hdev) 3391 { 3392 int err; 3393 static const u8 param[] = { 0x26 }; 3394 3395 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3396 if (err < 0) 3397 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3398 } 3399 3400 /* Return: 0 on success, negative errno on failure. */ 3401 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3402 { 3403 int ret = 0; 3404 unsigned int skip = 0; 3405 u8 pkt_type; 3406 u16 seqno; 3407 u32 dump_size; 3408 3409 struct qca_dump_hdr *dump_hdr; 3410 struct btusb_data *btdata = hci_get_drvdata(hdev); 3411 struct btqca_data *btqca_data = hci_get_priv(hdev); 3412 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump; 3413 struct usb_device *udev = btdata->udev; 3414 3415 pkt_type = hci_skb_pkt_type(skb); 3416 skip = sizeof(struct hci_event_hdr); 3417 if (pkt_type == HCI_ACLDATA_PKT) 3418 skip += sizeof(struct hci_acl_hdr); 3419 3420 skb_pull(skb, skip); 3421 dump_hdr = (struct qca_dump_hdr *)skb->data; 3422 3423 seqno = le16_to_cpu(dump_hdr->seqno); 3424 if (seqno == 0) { 3425 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3426 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3427 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3428 ret = -EILSEQ; 3429 bt_dev_err(hdev, "Invalid memdump size(%u)", 3430 dump_size); 3431 goto out; 3432 } 3433 3434 ret = hci_devcd_init(hdev, dump_size); 3435 if (ret < 0) { 3436 bt_dev_err(hdev, "memdump init error(%d)", ret); 3437 goto out; 3438 } 3439 3440 qca_dump_ptr->ram_dump_size = dump_size; 3441 qca_dump_ptr->ram_dump_seqno = 0; 3442 3443 skb_pull(skb, offsetof(struct qca_dump_hdr, data0)); 3444 3445 usb_disable_autosuspend(udev); 3446 bt_dev_info(hdev, "%s memdump size(%u)\n", 3447 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3448 dump_size); 3449 } else { 3450 skb_pull(skb, offsetof(struct qca_dump_hdr, data)); 3451 } 3452 3453 if (!qca_dump_ptr->ram_dump_size) { 3454 ret = -EINVAL; 3455 bt_dev_err(hdev, "memdump is not active"); 3456 goto out; 3457 } 3458 3459 if ((seqno > qca_dump_ptr->ram_dump_seqno + 1) && seqno != QCA_LAST_SEQUENCE_NUM) { 3460 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - qca_dump_ptr->ram_dump_seqno - 1); 3461 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3462 bt_dev_err(hdev, 3463 "expected memdump seqno(%u) is not received(%u)\n", 3464 qca_dump_ptr->ram_dump_seqno, seqno); 3465 qca_dump_ptr->ram_dump_seqno = seqno; 3466 kfree_skb(skb); 3467 return ret; 3468 } 3469 3470 hci_devcd_append(hdev, skb); 3471 qca_dump_ptr->ram_dump_seqno++; 3472 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3473 bt_dev_info(hdev, 3474 "memdump done: pkts(%u), total(%u)\n", 3475 qca_dump_ptr->ram_dump_seqno, qca_dump_ptr->ram_dump_size); 3476 3477 hci_devcd_complete(hdev); 3478 goto out; 3479 } 3480 return ret; 3481 3482 out: 3483 if (qca_dump_ptr->ram_dump_size) 3484 usb_enable_autosuspend(udev); 3485 qca_dump_ptr->ram_dump_size = 0; 3486 qca_dump_ptr->ram_dump_seqno = 0; 3487 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3488 3489 if (ret < 0) 3490 kfree_skb(skb); 3491 return ret; 3492 } 3493 3494 /* Return: true if the ACL packet is a dump packet, false otherwise. */ 3495 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3496 { 3497 struct hci_event_hdr *event_hdr; 3498 struct hci_acl_hdr *acl_hdr; 3499 struct qca_dump_hdr *dump_hdr; 3500 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3501 bool is_dump = false; 3502 3503 if (!clone) 3504 return false; 3505 3506 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr)); 3507 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)) 3508 goto out; 3509 3510 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3511 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR) 3512 goto out; 3513 3514 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3515 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3516 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3517 goto out; 3518 3519 is_dump = true; 3520 out: 3521 consume_skb(clone); 3522 return is_dump; 3523 } 3524 3525 /* Return: true if the event packet is a dump packet, false otherwise. */ 3526 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3527 { 3528 struct hci_event_hdr *event_hdr; 3529 struct qca_dump_hdr *dump_hdr; 3530 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3531 bool is_dump = false; 3532 3533 if (!clone) 3534 return false; 3535 3536 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3537 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR) 3538 goto out; 3539 3540 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3541 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3542 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3543 goto out; 3544 3545 is_dump = true; 3546 out: 3547 consume_skb(clone); 3548 return is_dump; 3549 } 3550 3551 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3552 { 3553 if (acl_pkt_is_dump_qca(hdev, skb)) 3554 return handle_dump_pkt_qca(hdev, skb); 3555 return hci_recv_frame(hdev, skb); 3556 } 3557 3558 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3559 { 3560 if (evt_pkt_is_dump_qca(hdev, skb)) 3561 return handle_dump_pkt_qca(hdev, skb); 3562 return hci_recv_frame(hdev, skb); 3563 } 3564 3565 3566 #define QCA_DFU_PACKET_LEN 4096 3567 3568 #define QCA_GET_TARGET_VERSION 0x09 3569 #define QCA_CHECK_STATUS 0x05 3570 #define QCA_DFU_DOWNLOAD 0x01 3571 3572 #define QCA_SYSCFG_UPDATED 0x40 3573 #define QCA_PATCH_UPDATED 0x80 3574 #define QCA_DFU_TIMEOUT 3000 3575 #define QCA_FLAG_MULTI_NVM 0x80 3576 #define QCA_BT_RESET_WAIT_MS 100 3577 3578 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3579 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3580 3581 struct qca_version { 3582 __le32 rom_version; 3583 __le32 patch_version; 3584 __le32 ram_version; 3585 __u8 chip_id; 3586 __u8 platform_id; 3587 __le16 flag; 3588 __u8 reserved[4]; 3589 } __packed; 3590 3591 struct qca_rampatch_version { 3592 __le16 rom_version_high; 3593 __le16 rom_version_low; 3594 __le16 patch_version; 3595 } __packed; 3596 3597 struct qca_device_info { 3598 u32 rom_version; 3599 u8 rampatch_hdr; /* length of header in rampatch */ 3600 u8 nvm_hdr; /* length of header in NVM */ 3601 u8 ver_offset; /* offset of version structure in rampatch */ 3602 }; 3603 3604 struct qca_custom_firmware { 3605 u32 rom_version; 3606 u16 board_id; 3607 const char *subdirectory; 3608 }; 3609 3610 static const struct qca_device_info qca_devices_table[] = { 3611 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3612 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3613 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3614 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3615 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3616 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3617 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3618 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3619 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3620 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3621 }; 3622 3623 static const struct qca_custom_firmware qca_custom_btfws[] = { 3624 { 0x00130201, 0x030A, "QCA2066" }, 3625 { 0x00130201, 0x030B, "QCA2066" }, 3626 { }, 3627 }; 3628 3629 static u16 qca_extract_board_id(const struct qca_version *ver) 3630 { 3631 u16 flag = le16_to_cpu(ver->flag); 3632 u16 board_id = 0; 3633 3634 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3635 /* The board_id should be split into two bytes 3636 * The 1st byte is chip ID, and the 2nd byte is platform ID 3637 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3638 * we have several platforms, and platform IDs are continuously added 3639 * Platform ID: 3640 * 0x00 is for Mobile 3641 * 0x01 is for X86 3642 * 0x02 is for Automotive 3643 * 0x03 is for Consumer electronic 3644 */ 3645 board_id = (ver->chip_id << 8) + ver->platform_id; 3646 } 3647 3648 /* Take 0xffff as invalid board ID */ 3649 if (board_id == 0xffff) 3650 board_id = 0; 3651 3652 return board_id; 3653 } 3654 3655 static const char *qca_get_fw_subdirectory(const struct qca_version *ver) 3656 { 3657 const struct qca_custom_firmware *ptr; 3658 u32 rom_ver; 3659 u16 board_id; 3660 3661 rom_ver = le32_to_cpu(ver->rom_version); 3662 board_id = qca_extract_board_id(ver); 3663 if (!board_id) 3664 return NULL; 3665 3666 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) { 3667 if (ptr->rom_version == rom_ver && 3668 ptr->board_id == board_id) 3669 return ptr->subdirectory; 3670 } 3671 3672 return NULL; 3673 } 3674 3675 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3676 void *data, u16 size) 3677 { 3678 int err; 3679 3680 /* Found some of USB hosts have IOT issues with ours so that we should 3681 * not wait until HCI layer is ready. 3682 */ 3683 err = usb_control_msg_recv(udev, 0, request, USB_TYPE_VENDOR | USB_DIR_IN, 3684 0, 0, data, size, USB_CTRL_GET_TIMEOUT, 3685 GFP_KERNEL); 3686 if (err) 3687 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3688 3689 return err; 3690 } 3691 3692 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3693 const struct firmware *firmware, 3694 size_t hdr_size) 3695 { 3696 struct btusb_data *btdata = hci_get_drvdata(hdev); 3697 struct usb_device *udev = btdata->udev; 3698 size_t count, size, sent = 0; 3699 int pipe, len, err; 3700 u8 *buf; 3701 3702 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3703 if (!buf) 3704 return -ENOMEM; 3705 3706 count = firmware->size; 3707 3708 size = min_t(size_t, count, hdr_size); 3709 memcpy(buf, firmware->data, size); 3710 3711 /* USB patches should go down to controller through USB path 3712 * because binary format fits to go down through USB channel. 3713 * USB control path is for patching headers and USB bulk is for 3714 * patch body. 3715 */ 3716 pipe = usb_sndctrlpipe(udev, 0); 3717 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3718 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3719 if (err < 0) { 3720 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3721 goto done; 3722 } 3723 3724 sent += size; 3725 count -= size; 3726 3727 /* ep2 need time to switch from function acl to function dfu, 3728 * so we add 20ms delay here. 3729 */ 3730 msleep(20); 3731 3732 while (count) { 3733 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3734 3735 memcpy(buf, firmware->data + sent, size); 3736 3737 pipe = usb_sndbulkpipe(udev, 0x02); 3738 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3739 QCA_DFU_TIMEOUT); 3740 if (err < 0) { 3741 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3742 sent, firmware->size, err); 3743 break; 3744 } 3745 3746 if (size != len) { 3747 bt_dev_err(hdev, "Failed to get bulk buffer"); 3748 err = -EILSEQ; 3749 break; 3750 } 3751 3752 sent += size; 3753 count -= size; 3754 } 3755 3756 done: 3757 kfree(buf); 3758 return err; 3759 } 3760 3761 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3762 struct qca_version *ver, 3763 const struct qca_device_info *info) 3764 { 3765 struct qca_rampatch_version *rver; 3766 const struct firmware *fw; 3767 const char *fw_subdir; 3768 u32 ver_rom, ver_patch, rver_rom; 3769 u16 rver_rom_low, rver_rom_high, rver_patch; 3770 char fwname[80]; 3771 int err; 3772 3773 ver_rom = le32_to_cpu(ver->rom_version); 3774 ver_patch = le32_to_cpu(ver->patch_version); 3775 3776 fw_subdir = qca_get_fw_subdirectory(ver); 3777 if (fw_subdir) 3778 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin", 3779 fw_subdir, ver_rom); 3780 else 3781 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", 3782 ver_rom); 3783 3784 err = request_firmware(&fw, fwname, &hdev->dev); 3785 if (err) { 3786 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3787 fwname, err); 3788 return err; 3789 } 3790 3791 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3792 3793 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3794 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3795 rver_patch = le16_to_cpu(rver->patch_version); 3796 3797 if (ver_rom & ~0xffffU) { 3798 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3799 rver_rom = rver_rom_high << 16 | rver_rom_low; 3800 } else { 3801 rver_rom = rver_rom_low; 3802 } 3803 3804 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3805 "firmware rome 0x%x build 0x%x", 3806 rver_rom, rver_patch, ver_rom, ver_patch); 3807 3808 /* Allow rampatch when the patch version equals the firmware version. 3809 * A firmware download may be aborted by a transient USB error (e.g. 3810 * disconnect) after the controller updates version info but before 3811 * completion. 3812 * Allowing equal versions enables re-flashing during recovery. 3813 */ 3814 if (rver_rom != ver_rom || rver_patch < ver_patch) { 3815 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3816 err = -EINVAL; 3817 goto done; 3818 } 3819 3820 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3821 3822 done: 3823 release_firmware(fw); 3824 3825 return err; 3826 } 3827 3828 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3829 const struct qca_version *ver) 3830 { 3831 u32 rom_version = le32_to_cpu(ver->rom_version); 3832 const char *variant, *fw_subdir; 3833 int len; 3834 u16 board_id; 3835 3836 fw_subdir = qca_get_fw_subdirectory(ver); 3837 board_id = qca_extract_board_id(ver); 3838 3839 switch (le32_to_cpu(ver->ram_version)) { 3840 case WCN6855_2_0_RAM_VERSION_GF: 3841 case WCN6855_2_1_RAM_VERSION_GF: 3842 variant = "_gf"; 3843 break; 3844 default: 3845 variant = NULL; 3846 break; 3847 } 3848 3849 if (fw_subdir) 3850 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x", 3851 fw_subdir, rom_version); 3852 else 3853 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x", 3854 rom_version); 3855 if (variant) 3856 len += snprintf(fwname + len, max_size - len, "%s", variant); 3857 if (board_id) 3858 len += snprintf(fwname + len, max_size - len, "_%04x", board_id); 3859 len += snprintf(fwname + len, max_size - len, ".bin"); 3860 } 3861 3862 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3863 struct qca_version *ver, 3864 const struct qca_device_info *info) 3865 { 3866 const struct firmware *fw; 3867 char fwname[80]; 3868 int err; 3869 3870 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3871 3872 err = request_firmware(&fw, fwname, &hdev->dev); 3873 if (err) { 3874 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3875 fwname, err); 3876 return err; 3877 } 3878 3879 bt_dev_info(hdev, "using NVM file: %s", fwname); 3880 3881 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3882 3883 release_firmware(fw); 3884 3885 return err; 3886 } 3887 3888 /* identify the ROM version and check whether patches are needed */ 3889 static bool btusb_qca_need_patch(struct usb_device *udev) 3890 { 3891 struct qca_version ver; 3892 3893 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3894 sizeof(ver))) 3895 return false; 3896 /* only low ROM versions need patches */ 3897 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3898 } 3899 3900 static int btusb_setup_qca(struct hci_dev *hdev) 3901 { 3902 struct btusb_data *btdata = hci_get_drvdata(hdev); 3903 struct usb_device *udev = btdata->udev; 3904 const struct qca_device_info *info = NULL; 3905 struct qca_version ver; 3906 u32 ver_rom; 3907 u8 status; 3908 int i, err; 3909 3910 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3911 sizeof(ver)); 3912 if (err) 3913 return err; 3914 3915 ver_rom = le32_to_cpu(ver.rom_version); 3916 3917 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3918 if (ver_rom == qca_devices_table[i].rom_version) 3919 info = &qca_devices_table[i]; 3920 } 3921 if (!info) { 3922 /* If the rom_version is not matched in the qca_devices_table 3923 * and the high ROM version is not zero, we assume this chip no 3924 * need to load the rampatch and nvm. 3925 */ 3926 if (ver_rom & ~0xffffU) 3927 return 0; 3928 3929 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3930 return -ENODEV; 3931 } 3932 3933 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3934 sizeof(status)); 3935 if (err) 3936 return err; 3937 3938 if (!(status & QCA_PATCH_UPDATED)) { 3939 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3940 if (err < 0) 3941 return err; 3942 } 3943 3944 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3945 sizeof(ver)); 3946 if (err) 3947 return err; 3948 3949 if (btdata->match_id->driver_info & BTUSB_QCA_WCN6855) { 3950 struct btqca_data *btqca_data = hci_get_priv(hdev); 3951 3952 btqca_data->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3953 btqca_data->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3954 } 3955 3956 if (!(status & QCA_SYSCFG_UPDATED)) { 3957 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3958 if (err < 0) 3959 return err; 3960 3961 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3962 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3963 * cause potential enable failure. 3964 */ 3965 if (info->rom_version >= 0x00130201) 3966 msleep(QCA_BT_RESET_WAIT_MS); 3967 } 3968 3969 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3970 * work with the likes of HSP/HFP mSBC. 3971 */ 3972 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 3973 3974 return 0; 3975 } 3976 3977 static inline int __set_diag_interface(struct hci_dev *hdev) 3978 { 3979 struct btusb_data *data = hci_get_drvdata(hdev); 3980 struct usb_interface *intf = data->diag; 3981 int ret; 3982 3983 if (!data->diag) 3984 return -ENODEV; 3985 3986 ret = usb_find_common_endpoints(intf->cur_altsetting, &data->diag_rx_ep, 3987 &data->diag_tx_ep, NULL, NULL); 3988 if (ret) { 3989 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3990 return -ENODEV; 3991 } 3992 3993 return 0; 3994 } 3995 3996 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3997 { 3998 struct btusb_data *data = hci_get_drvdata(hdev); 3999 struct sk_buff *skb; 4000 struct urb *urb; 4001 unsigned int pipe; 4002 4003 if (!data->diag_tx_ep) 4004 return ERR_PTR(-ENODEV); 4005 4006 urb = usb_alloc_urb(0, GFP_KERNEL); 4007 if (!urb) 4008 return ERR_PTR(-ENOMEM); 4009 4010 skb = bt_skb_alloc(2, GFP_KERNEL); 4011 if (!skb) { 4012 usb_free_urb(urb); 4013 return ERR_PTR(-ENOMEM); 4014 } 4015 4016 skb_put_u8(skb, 0xf0); 4017 skb_put_u8(skb, enable); 4018 4019 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 4020 4021 usb_fill_bulk_urb(urb, data->udev, pipe, 4022 skb->data, skb->len, btusb_tx_complete, skb); 4023 4024 skb->dev = (void *)hdev; 4025 4026 return urb; 4027 } 4028 4029 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 4030 { 4031 struct btusb_data *data = hci_get_drvdata(hdev); 4032 struct urb *urb; 4033 4034 if (!data->diag) 4035 return -ENODEV; 4036 4037 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4038 return -ENETDOWN; 4039 4040 urb = alloc_diag_urb(hdev, enable); 4041 if (IS_ERR(urb)) 4042 return PTR_ERR(urb); 4043 4044 return submit_or_queue_tx_urb(hdev, urb); 4045 } 4046 4047 #ifdef CONFIG_PM 4048 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 4049 { 4050 struct btusb_data *data = priv; 4051 4052 pm_wakeup_event(&data->udev->dev, 0); 4053 pm_system_wakeup(); 4054 4055 /* Disable only if not already disabled (keep it balanced) */ 4056 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4057 disable_irq_nosync(irq); 4058 disable_irq_wake(irq); 4059 } 4060 return IRQ_HANDLED; 4061 } 4062 4063 static const struct of_device_id btusb_match_table[] = { 4064 { .compatible = "usb1286,204e" }, 4065 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 4066 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 4067 { } 4068 }; 4069 MODULE_DEVICE_TABLE(of, btusb_match_table); 4070 4071 /* Use an oob wakeup pin? */ 4072 static int btusb_config_oob_wake(struct hci_dev *hdev) 4073 { 4074 struct btusb_data *data = hci_get_drvdata(hdev); 4075 struct device *dev = &data->udev->dev; 4076 int irq, ret; 4077 4078 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4079 4080 if (!of_match_device(btusb_match_table, dev)) 4081 return 0; 4082 4083 /* Move on if no IRQ specified */ 4084 irq = of_irq_get_byname(dev->of_node, "wakeup"); 4085 if (irq <= 0) { 4086 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 4087 return 0; 4088 } 4089 4090 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4091 ret = request_irq(irq, btusb_oob_wake_handler, 0, "OOB Wake-on-BT", data); 4092 if (ret) { 4093 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4094 return ret; 4095 } 4096 4097 ret = device_init_wakeup(dev, true); 4098 if (ret) { 4099 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4100 goto err_free_irq; 4101 } 4102 4103 data->oob_wake_irq = irq; 4104 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4105 4106 return 0; 4107 4108 err_free_irq: 4109 free_irq(irq, data); 4110 4111 return ret; 4112 } 4113 #else 4114 static inline int btusb_config_oob_wake(struct hci_dev *hdev) 4115 { 4116 return 0; 4117 } 4118 #endif 4119 4120 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4121 { 4122 if (dmi_check_system(btusb_needs_reset_resume_table)) 4123 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4124 } 4125 4126 static bool btusb_wakeup(struct hci_dev *hdev) 4127 { 4128 struct btusb_data *data = hci_get_drvdata(hdev); 4129 4130 return device_may_wakeup(&data->udev->dev); 4131 } 4132 4133 static int btusb_shutdown_qca(struct hci_dev *hdev) 4134 { 4135 int err; 4136 4137 err = __hci_reset_sync(hdev); 4138 if (err) 4139 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4140 4141 return err; 4142 } 4143 4144 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4145 size_t count, loff_t *ppos) 4146 { 4147 struct btusb_data *data = file->private_data; 4148 char buf[3]; 4149 4150 buf[0] = data->poll_sync ? 'Y' : 'N'; 4151 buf[1] = '\n'; 4152 buf[2] = '\0'; 4153 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4154 } 4155 4156 static ssize_t force_poll_sync_write(struct file *file, 4157 const char __user *user_buf, 4158 size_t count, loff_t *ppos) 4159 { 4160 struct btusb_data *data = file->private_data; 4161 bool enable; 4162 int err; 4163 4164 err = kstrtobool_from_user(user_buf, count, &enable); 4165 if (err) 4166 return err; 4167 4168 /* Only allow changes while the adapter is down and it is using legacy 4169 * protocol. 4170 */ 4171 if (test_bit(HCI_UP, &data->hdev->flags) || 4172 data->proto != BTUSB_PROTO_LEGACY) 4173 return -EPERM; 4174 4175 if (data->poll_sync == enable) 4176 return -EALREADY; 4177 4178 data->poll_sync = enable; 4179 4180 return count; 4181 } 4182 4183 static const struct file_operations force_poll_sync_fops = { 4184 .owner = THIS_MODULE, 4185 .open = simple_open, 4186 .read = force_poll_sync_read, 4187 .write = force_poll_sync_write, 4188 .llseek = default_llseek, 4189 }; 4190 4191 #define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \ 4192 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000) 4193 #define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0 4194 struct btusb_hci_drv_rp_supported_altsettings { 4195 __u8 num; 4196 __u8 altsettings[]; 4197 } __packed; 4198 4199 #define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \ 4200 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001) 4201 #define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1 4202 struct btusb_hci_drv_cmd_switch_altsetting { 4203 __u8 altsetting; 4204 } __packed; 4205 4206 static const struct { 4207 u16 opcode; 4208 const char *desc; 4209 } btusb_hci_drv_supported_commands[] = { 4210 /* Common commands */ 4211 { HCI_DRV_OP_READ_INFO, "Read Info" }, 4212 4213 /* Driver specific commands */ 4214 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" }, 4215 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" }, 4216 }; 4217 static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data, 4218 u16 data_len) 4219 { 4220 struct hci_drv_rp_read_info *rp; 4221 size_t rp_size; 4222 int err, i; 4223 u16 opcode, num_supported_commands = 4224 ARRAY_SIZE(btusb_hci_drv_supported_commands); 4225 4226 rp_size = sizeof(*rp) + num_supported_commands * 2; 4227 4228 rp = kmalloc(rp_size, GFP_KERNEL); 4229 if (!rp) 4230 return -ENOMEM; 4231 4232 strscpy_pad(rp->driver_name, btusb_driver.name); 4233 4234 rp->num_supported_commands = cpu_to_le16(num_supported_commands); 4235 for (i = 0; i < num_supported_commands; i++) { 4236 opcode = btusb_hci_drv_supported_commands[i].opcode; 4237 bt_dev_info(hdev, 4238 "Supported HCI Drv command (0x%02x|0x%04x): %s", 4239 hci_opcode_ogf(opcode), 4240 hci_opcode_ocf(opcode), 4241 btusb_hci_drv_supported_commands[i].desc); 4242 rp->supported_commands[i] = cpu_to_le16(opcode); 4243 } 4244 4245 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO, 4246 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4247 4248 kfree(rp); 4249 return err; 4250 } 4251 4252 static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data, 4253 u16 data_len) 4254 { 4255 struct btusb_data *drvdata = hci_get_drvdata(hdev); 4256 struct btusb_hci_drv_rp_supported_altsettings *rp; 4257 size_t rp_size; 4258 int err; 4259 u8 i; 4260 4261 /* There are at most 7 alt (0 - 6) */ 4262 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL); 4263 if (!rp) 4264 return -ENOMEM; 4265 4266 rp->num = 0; 4267 if (!drvdata->isoc) 4268 goto done; 4269 4270 for (i = 0; i <= 6; i++) { 4271 if (btusb_find_altsetting(drvdata->isoc, i)) 4272 rp->altsettings[rp->num++] = i; 4273 } 4274 4275 done: 4276 rp_size = sizeof(*rp) + rp->num; 4277 4278 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, 4279 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4280 kfree(rp); 4281 return err; 4282 } 4283 4284 static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data, 4285 u16 data_len) 4286 { 4287 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data; 4288 u8 status; 4289 4290 if (cmd->altsetting > 6) { 4291 status = HCI_DRV_STATUS_INVALID_PARAMETERS; 4292 } else { 4293 if (btusb_switch_alt_setting(hdev, cmd->altsetting)) 4294 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR; 4295 else 4296 status = HCI_DRV_STATUS_SUCCESS; 4297 } 4298 4299 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, 4300 status); 4301 } 4302 4303 static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = { 4304 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE }, 4305 }; 4306 4307 static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = { 4308 { btusb_hci_drv_supported_altsettings, 4309 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE }, 4310 { btusb_hci_drv_switch_altsetting, 4311 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE }, 4312 }; 4313 4314 static struct hci_drv btusb_hci_drv = { 4315 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers), 4316 .common_handlers = btusb_hci_drv_common_handlers, 4317 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers), 4318 .specific_handlers = btusb_hci_drv_specific_handlers, 4319 }; 4320 4321 /* 4322 * ============================================================================ 4323 * Qualcomm support 4324 * ============================================================================ 4325 */ 4326 4327 static int btusb_recv_intr_qcom(struct btusb_data *data, void *buffer, int count) 4328 { 4329 unsigned long flags; 4330 int err = 0; 4331 4332 spin_lock_irqsave(&data->rxlock, flags); 4333 data->evt_skb = btusb_qcom_recv_intr(data->hdev, data->evt_skb, buffer, count, 4334 &err); 4335 spin_unlock_irqrestore(&data->rxlock, flags); 4336 4337 return err; 4338 } 4339 4340 static int btusb_recv_bulk_qcom(struct btusb_data *data, void *buffer, int count) 4341 { 4342 unsigned long flags; 4343 int err = 0; 4344 4345 spin_lock_irqsave(&data->rxlock, flags); 4346 data->acl_skb = btusb_qcom_recv_bulk(data->hdev, data->acl_skb, buffer, count, 4347 &err); 4348 spin_unlock_irqrestore(&data->rxlock, flags); 4349 4350 return err; 4351 } 4352 4353 static int btusb_send_vendor_frame_qcom(struct hci_dev *hdev, struct sk_buff *skb) 4354 { 4355 u8 pkt_type = hci_skb_pkt_type(skb); 4356 struct urb *urb; 4357 4358 switch (pkt_type) { 4359 case QPERI_COMMAND_PKT: 4360 urb = alloc_ctrl_urb(hdev, skb); 4361 break; 4362 4363 case QPERI_ACLDATA_PKT: 4364 urb = alloc_bulk_urb(hdev, skb); 4365 break; 4366 4367 default: 4368 return -EILSEQ; 4369 } 4370 4371 if (IS_ERR(urb)) 4372 return PTR_ERR(urb); 4373 4374 return submit_or_queue_tx_urb(hdev, urb); 4375 } 4376 4377 /* 4378 * ============================================================================ 4379 * Qualcomm support end 4380 * ============================================================================ 4381 */ 4382 4383 static int btusb_probe(struct usb_interface *intf, 4384 const struct usb_device_id *id) 4385 { 4386 struct gpio_desc *reset_gpio; 4387 struct usb_host_interface *alt; 4388 struct usb_endpoint_descriptor *bulk_rx_ep, *bulk_tx_ep, *intr_ep; 4389 struct btusb_data *data; 4390 struct hci_dev *hdev; 4391 unsigned ifnum_base; 4392 int err, priv_size = 0; 4393 4394 BT_DBG("intf %p id %p", intf, id); 4395 4396 if ((id->driver_info & BTUSB_IFNUM_2) && 4397 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4398 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4399 return -ENODEV; 4400 4401 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4402 4403 if (!id->driver_info) { 4404 const struct usb_device_id *match; 4405 4406 match = usb_match_id(intf, quirks_table); 4407 if (match) 4408 id = match; 4409 } 4410 4411 if (id->driver_info & BTUSB_IGNORE) 4412 return -ENODEV; 4413 4414 if (id->driver_info & BTUSB_ATH3012) { 4415 struct usb_device *udev = interface_to_usbdev(intf); 4416 4417 /* Old firmware would otherwise let ath3k driver load 4418 * patch and sysconfig files 4419 */ 4420 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4421 !btusb_qca_need_patch(udev)) 4422 return -ENODEV; 4423 } 4424 4425 data = kzalloc_obj(*data); 4426 if (!data) 4427 return -ENOMEM; 4428 4429 data->match_id = id; 4430 4431 /* Alternate setting 1 with a single pair of bulk endpoints and no 4432 * interrupt endpoint means the controller supports Bulk Serialization 4433 * Mode, in which every packet is prefixed with an H:4 header and 4434 * carried over the bulk endpoints. 4435 */ 4436 alt = btusb_find_altsetting(intf, 1); 4437 if (alt && usb_find_int_in_endpoint(alt, &intr_ep) && 4438 !usb_find_common_endpoints(alt, &bulk_rx_ep, &bulk_tx_ep, NULL, 4439 NULL)) { 4440 err = usb_set_interface(interface_to_usbdev(intf), ifnum_base, 1); 4441 if (!err) 4442 data->proto = BTUSB_PROTO_H4; 4443 else 4444 dev_warn(&intf->dev, 4445 "failed to select alt setting 1 (%d), using legacy mode", 4446 err); 4447 } 4448 4449 /* Check if all endpoints could be enumerated, legacy mode requires 4450 * interrupt and bulk endpoints while H4 mode only requires bulk 4451 * endpoints. 4452 */ 4453 err = usb_find_common_endpoints(intf->cur_altsetting, &data->bulk_rx_ep, 4454 &data->bulk_tx_ep, 4455 data->proto == BTUSB_PROTO_LEGACY ? 4456 &data->intr_ep : NULL, 4457 NULL); 4458 if (err) { 4459 dev_err(&intf->dev, "failed to enumerate endpoints\n"); 4460 goto err_free_data; 4461 } 4462 4463 if (id->driver_info & BTUSB_AMP) { 4464 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4465 data->cmdreq = 0x2b; 4466 } else { 4467 data->cmdreq_type = USB_TYPE_CLASS; 4468 data->cmdreq = 0x00; 4469 } 4470 4471 data->udev = interface_to_usbdev(intf); 4472 data->intf = intf; 4473 4474 INIT_WORK(&data->work, btusb_work); 4475 INIT_WORK(&data->waker, btusb_waker); 4476 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4477 4478 skb_queue_head_init(&data->acl_q); 4479 4480 init_usb_anchor(&data->deferred); 4481 init_usb_anchor(&data->tx_anchor); 4482 spin_lock_init(&data->txlock); 4483 4484 init_usb_anchor(&data->intr_anchor); 4485 init_usb_anchor(&data->bulk_anchor); 4486 init_usb_anchor(&data->isoc_anchor); 4487 init_usb_anchor(&data->diag_anchor); 4488 init_usb_anchor(&data->ctrl_anchor); 4489 spin_lock_init(&data->rxlock); 4490 4491 data->recv_event = hci_recv_frame; 4492 data->recv_intr = btusb_recv_intr; 4493 data->recv_bulk = btusb_recv_bulk; 4494 4495 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4496 /* Allocate extra space for Intel device */ 4497 priv_size += sizeof(struct btintel_data); 4498 4499 /* Override the rx handlers */ 4500 data->recv_event = btintel_recv_event; 4501 data->recv_bulk = btusb_recv_bulk_intel; 4502 } else if (id->driver_info & BTUSB_REALTEK) { 4503 /* Allocate extra space for Realtek device */ 4504 priv_size += sizeof(struct btrealtek_data); 4505 4506 data->recv_event = btusb_recv_event_realtek; 4507 } else if (id->driver_info & BTUSB_MEDIATEK) { 4508 /* Allocate extra space for Mediatek device */ 4509 priv_size += sizeof(struct btmtk_data); 4510 } else if (id->driver_info & BTUSB_QCA_WCN6855) { 4511 /* Allocate extra space for QCA WCN6855 device */ 4512 priv_size += sizeof(struct btqca_data); 4513 } else if (id->driver_info & BTUSB_QUALCOMM) { 4514 /* Allocate extra space for Qualcomm device */ 4515 priv_size += btusb_qcom_hdev_priv_size(); 4516 } 4517 4518 data->recv_acl = hci_recv_frame; 4519 4520 hdev = hci_alloc_dev_priv(priv_size); 4521 if (!hdev) { 4522 err = -ENOMEM; 4523 goto err_free_data; 4524 } 4525 4526 hdev->bus = HCI_USB; 4527 hci_set_drvdata(hdev, data); 4528 4529 data->hdev = hdev; 4530 4531 SET_HCIDEV_DEV(hdev, &intf->dev); 4532 4533 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4534 GPIOD_OUT_LOW); 4535 if (IS_ERR(reset_gpio)) { 4536 err = PTR_ERR(reset_gpio); 4537 goto err_free_hdev; 4538 } else if (reset_gpio) { 4539 data->reset_gpio = reset_gpio; 4540 } 4541 4542 hdev->open = btusb_open; 4543 hdev->close = btusb_close; 4544 hdev->flush = btusb_flush; 4545 hdev->send = btusb_send_frame; 4546 hdev->notify = btusb_notify; 4547 hdev->wakeup = btusb_wakeup; 4548 hdev->hci_drv = &btusb_hci_drv; 4549 4550 err = btusb_config_oob_wake(hdev); 4551 if (err) 4552 goto err_put_reset; 4553 4554 /* Marvell devices may need a specific chip configuration */ 4555 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4556 err = marvell_config_oob_wake(hdev); 4557 if (err) 4558 goto err_disable_wakeup; 4559 } 4560 4561 if (id->driver_info & BTUSB_CW6622) 4562 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4563 4564 if (id->driver_info & BTUSB_BCM2045) 4565 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4566 4567 if (id->driver_info & BTUSB_BCM92035) 4568 hdev->setup = btusb_setup_bcm92035; 4569 4570 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4571 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4572 hdev->manufacturer = 15; 4573 hdev->setup = btbcm_setup_patchram; 4574 hdev->set_diag = btusb_bcm_set_diag; 4575 hdev->set_bdaddr = btbcm_set_bdaddr; 4576 4577 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4578 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4579 } 4580 4581 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4582 (id->driver_info & BTUSB_BCM_APPLE)) { 4583 hdev->manufacturer = 15; 4584 hdev->setup = btbcm_setup_apple; 4585 hdev->set_diag = btusb_bcm_set_diag; 4586 4587 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4588 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4589 } 4590 4591 /* Combined Intel Device setup to support multiple setup routine */ 4592 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4593 err = btintel_configure_setup(hdev, btusb_driver.name); 4594 if (err) 4595 goto err_kill_tx_urbs; 4596 4597 /* Transport specific configuration */ 4598 hdev->send = btusb_send_frame_intel; 4599 hdev->reset = btusb_intel_reset; 4600 4601 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4602 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4603 4604 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4605 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4606 4607 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4608 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4609 } 4610 4611 if (id->driver_info & BTUSB_MARVELL) 4612 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4613 4614 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4615 (id->driver_info & BTUSB_MEDIATEK)) { 4616 hdev->setup = btusb_mtk_setup; 4617 hdev->shutdown = btusb_mtk_shutdown; 4618 hdev->manufacturer = 70; 4619 hdev->reset = btmtk_reset_sync; 4620 hdev->set_bdaddr = btmtk_set_bdaddr; 4621 hdev->send = btusb_send_frame_mtk; 4622 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 4623 hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP); 4624 data->recv_acl = btmtk_usb_recv_acl; 4625 data->recv_event = btmtk_recv_event; 4626 data->suspend = btmtk_usb_suspend; 4627 data->resume = btmtk_usb_resume; 4628 data->disconnect = btusb_mtk_disconnect; 4629 } 4630 4631 if (id->driver_info & BTUSB_SWAVE) { 4632 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE); 4633 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS); 4634 } 4635 4636 if (id->driver_info & BTUSB_INTEL_BOOT) { 4637 hdev->manufacturer = 2; 4638 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4639 } 4640 4641 if (id->driver_info & BTUSB_ATH3012) { 4642 data->setup_on_usb = btusb_setup_qca; 4643 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4644 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4645 hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER); 4646 } 4647 4648 if (id->driver_info & BTUSB_QCA_ROME) { 4649 data->setup_on_usb = btusb_setup_qca; 4650 hdev->shutdown = btusb_shutdown_qca; 4651 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4652 hdev->reset = btusb_qca_reset; 4653 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4654 btusb_check_needs_reset_resume(intf); 4655 } 4656 4657 if (id->driver_info & BTUSB_QCA_WCN6855) { 4658 struct btqca_data *btqca_data = hci_get_priv(hdev); 4659 4660 btqca_data->qca_dump.id_vendor = id->idVendor; 4661 btqca_data->qca_dump.id_product = id->idProduct; 4662 data->recv_event = btusb_recv_evt_qca; 4663 data->recv_acl = btusb_recv_acl_qca; 4664 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4665 data->setup_on_usb = btusb_setup_qca; 4666 hdev->classify_pkt_type = btusb_classify_qca_pkt_type; 4667 hdev->shutdown = btusb_shutdown_qca; 4668 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4669 hdev->reset = btusb_qca_reset; 4670 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4671 hci_set_msft_opcode(hdev, 0xFD70); 4672 } 4673 4674 if (id->driver_info & BTUSB_QUALCOMM) { 4675 struct btusb_qcom *xport_data; 4676 4677 if (!IS_ENABLED(CONFIG_BT_HCIBTUSB_QCOM)) { 4678 err = -ENODEV; 4679 bt_dev_err(hdev, "CONFIG_BT_HCIBTUSB_QCOM not enabled"); 4680 goto err_kill_tx_urbs; 4681 } 4682 4683 xport_data = btusb_qcom_xport_data(hdev); 4684 xport_data->reset_gpio = data->reset_gpio; 4685 xport_data->prepare_reset = btusb_prepare_reset; 4686 xport_data->recv_bt_frame = btusb_recv_frame; 4687 xport_data->send_bt_frame = btusb_send_frame; 4688 xport_data->send_vendor_frame = btusb_send_vendor_frame_qcom; 4689 4690 data->recv_intr = btusb_recv_intr_qcom; 4691 data->recv_bulk = btusb_recv_bulk_qcom; 4692 data->disconnect = btusb_qcom_disconnect; 4693 4694 hdev->manufacturer = 0x1d; 4695 hdev->send = btusb_qcom_send_frame; 4696 hdev->setup = btusb_qcom_setup; 4697 } 4698 4699 if (id->driver_info & BTUSB_AMP) { 4700 /* AMP controllers do not support SCO packets */ 4701 data->isoc = NULL; 4702 } else if (data->proto == BTUSB_PROTO_H4) { 4703 /* In H:4 mode every packet, including SCO/ISO, is carried over 4704 * the bulk endpoints, so the isochronous interface must not be 4705 * claimed nor have its alternate settings switched. 4706 */ 4707 data->isoc = NULL; 4708 } else { 4709 /* Interface orders are hardcoded in the specification */ 4710 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4711 data->isoc_ifnum = ifnum_base + 1; 4712 } 4713 4714 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4715 (id->driver_info & BTUSB_REALTEK)) { 4716 btrtl_set_driver_name(hdev, btusb_driver.name); 4717 hdev->setup = btusb_setup_realtek; 4718 hdev->shutdown = btrtl_shutdown_realtek; 4719 hdev->reset = btusb_rtl_reset; 4720 hdev->hw_error = btusb_rtl_hw_error; 4721 4722 /* Realtek devices need to set remote wakeup on auto-suspend */ 4723 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4724 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4725 } 4726 4727 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4728 /* Support is advertised, but not implemented */ 4729 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 4730 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER); 4731 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT); 4732 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN); 4733 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE); 4734 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN); 4735 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT); 4736 } 4737 4738 if (!reset) 4739 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4740 4741 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4742 if (!disable_scofix) 4743 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE); 4744 } 4745 4746 if (id->driver_info & BTUSB_BROKEN_ISOC) 4747 data->isoc = NULL; 4748 4749 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4750 hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED); 4751 4752 if (id->driver_info & BTUSB_INVALID_LE_STATES) 4753 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES); 4754 4755 if (id->driver_info & BTUSB_DIGIANSWER) { 4756 data->cmdreq_type = USB_TYPE_VENDOR; 4757 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4758 } 4759 4760 if (id->driver_info & BTUSB_CSR) { 4761 struct usb_device *udev = data->udev; 4762 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4763 4764 /* Old firmware would otherwise execute USB reset */ 4765 if (bcdDevice < 0x117) 4766 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4767 4768 /* This must be set first in case we disable it for fakes */ 4769 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4770 4771 /* Fake CSR devices with broken commands */ 4772 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4773 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4774 hdev->setup = btusb_setup_csr; 4775 } 4776 4777 if (id->driver_info & BTUSB_SNIFFER) { 4778 struct usb_device *udev = data->udev; 4779 4780 /* New sniffer firmware has crippled HCI interface */ 4781 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4782 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4783 } 4784 4785 if (id->driver_info & BTUSB_INTEL_BOOT) { 4786 /* A bug in the bootloader causes that interrupt interface is 4787 * only enabled after receiving SetInterface(0, AltSetting=0). 4788 */ 4789 err = usb_set_interface(data->udev, 0, 0); 4790 if (err < 0) { 4791 BT_ERR("failed to set interface 0, alt 0 %d", err); 4792 goto err_kill_tx_urbs; 4793 } 4794 } 4795 4796 if (data->isoc) { 4797 err = usb_driver_claim_interface(&btusb_driver, 4798 data->isoc, data); 4799 if (err < 0) 4800 goto err_kill_tx_urbs; 4801 } 4802 4803 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4804 if (!usb_driver_claim_interface(&btusb_driver, 4805 data->diag, data)) 4806 __set_diag_interface(hdev); 4807 else 4808 data->diag = NULL; 4809 } 4810 4811 if (enable_autosuspend) 4812 usb_enable_autosuspend(data->udev); 4813 4814 if (data->proto == BTUSB_PROTO_LEGACY) 4815 data->poll_sync = enable_poll_sync; 4816 4817 err = hci_register_dev(hdev); 4818 if (err < 0) 4819 goto err_release_siblings; 4820 4821 usb_set_intfdata(intf, data); 4822 4823 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4824 &force_poll_sync_fops); 4825 4826 return 0; 4827 4828 err_release_siblings: 4829 if (data->diag) { 4830 usb_set_intfdata(data->diag, NULL); 4831 usb_driver_release_interface(&btusb_driver, data->diag); 4832 } 4833 if (data->isoc) { 4834 usb_set_intfdata(data->isoc, NULL); 4835 usb_driver_release_interface(&btusb_driver, data->isoc); 4836 } 4837 err_kill_tx_urbs: 4838 usb_kill_anchored_urbs(&data->tx_anchor); 4839 err_disable_wakeup: 4840 if (data->oob_wake_irq) { 4841 device_init_wakeup(&data->udev->dev, false); 4842 free_irq(data->oob_wake_irq, data); 4843 } 4844 err_put_reset: 4845 if (data->reset_gpio) 4846 gpiod_put(data->reset_gpio); 4847 err_free_hdev: 4848 hci_free_dev(hdev); 4849 err_free_data: 4850 kfree(data); 4851 4852 return err; 4853 } 4854 4855 static void btusb_disconnect(struct usb_interface *intf) 4856 { 4857 struct btusb_data *data = usb_get_intfdata(intf); 4858 struct hci_dev *hdev; 4859 4860 BT_DBG("intf %p", intf); 4861 4862 if (!data) 4863 return; 4864 4865 hdev = data->hdev; 4866 usb_set_intfdata(data->intf, NULL); 4867 4868 if (data->isoc) 4869 usb_set_intfdata(data->isoc, NULL); 4870 4871 if (data->diag) 4872 usb_set_intfdata(data->diag, NULL); 4873 4874 if (data->disconnect) 4875 data->disconnect(hdev); 4876 4877 hci_unregister_dev(hdev); 4878 4879 if (data->oob_wake_irq) { 4880 device_init_wakeup(&data->udev->dev, false); 4881 free_irq(data->oob_wake_irq, data); 4882 } 4883 4884 if (data->reset_gpio) 4885 gpiod_put(data->reset_gpio); 4886 4887 if (test_and_clear_bit(BTUSB_RESET, &data->flags)) 4888 usb_autopm_put_interface_no_suspend(data->intf); 4889 4890 if (intf == data->intf) { 4891 if (data->isoc) 4892 usb_driver_release_interface(&btusb_driver, data->isoc); 4893 if (data->diag) 4894 usb_driver_release_interface(&btusb_driver, data->diag); 4895 } else if (intf == data->isoc) { 4896 if (data->diag) 4897 usb_driver_release_interface(&btusb_driver, data->diag); 4898 usb_driver_release_interface(&btusb_driver, data->intf); 4899 } else if (intf == data->diag) { 4900 if (data->isoc) 4901 usb_driver_release_interface(&btusb_driver, data->isoc); 4902 usb_driver_release_interface(&btusb_driver, data->intf); 4903 } 4904 4905 hci_free_dev(hdev); 4906 kfree(data); 4907 } 4908 4909 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4910 { 4911 struct btusb_data *data = usb_get_intfdata(intf); 4912 4913 BT_DBG("intf %p", intf); 4914 4915 /* 4916 * It is reported that remote wakeup events could sometimes cause some 4917 * adapters completely unresponsive. Resetting the xHCI root hub doesn't 4918 * help at all, and recovering from such a state needs a power cycle. 4919 * Since disabling remote wakeup simply causes the USB core to gate 4920 * runtime autosuspend as well due to needs_remote_wakeup == 1, let's do 4921 * this ourselves to make our life easier. The interface can be safely 4922 * autosuspended as long as remote wakeup is disabled, i.e., after 4923 * closing the HCI device. 4924 * 4925 * Don't auto-suspend if there are connections or discovery in progress. 4926 * 4927 * External suspend calls shall never fail. Specifically, a device with 4928 * broken remote wakeup may still take the advantage of remote wakeup in 4929 * order to wake up the system from sleep if userspace has enabled it as 4930 * a wakeup source. 4931 */ 4932 if (PMSG_IS_AUTO(message) && 4933 ((test_bit(BTUSB_WAKEUP_BROKEN, &data->flags) && data->intf->needs_remote_wakeup) || 4934 hci_conn_count(data->hdev) || hci_discovery_active(data->hdev))) 4935 return -EBUSY; 4936 4937 if (data->suspend_count++) 4938 return 0; 4939 4940 spin_lock_irq(&data->txlock); 4941 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4942 set_bit(BTUSB_SUSPENDING, &data->flags); 4943 spin_unlock_irq(&data->txlock); 4944 } else { 4945 spin_unlock_irq(&data->txlock); 4946 data->suspend_count--; 4947 return -EBUSY; 4948 } 4949 4950 cancel_work_sync(&data->work); 4951 4952 if (data->suspend) 4953 data->suspend(data->hdev); 4954 4955 btusb_stop_traffic(data); 4956 usb_kill_anchored_urbs(&data->tx_anchor); 4957 4958 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4959 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4960 enable_irq_wake(data->oob_wake_irq); 4961 enable_irq(data->oob_wake_irq); 4962 } 4963 4964 /* For global suspend, Realtek devices lose the loaded fw 4965 * in them. But for autosuspend, firmware should remain. 4966 * Actually, it depends on whether the usb host sends 4967 * set feature (enable wakeup) or not. 4968 */ 4969 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4970 if (PMSG_IS_AUTO(message) && 4971 device_can_wakeup(&data->udev->dev)) 4972 data->udev->do_remote_wakeup = 1; 4973 else if (!PMSG_IS_AUTO(message) && 4974 !device_may_wakeup(&data->udev->dev)) { 4975 data->udev->do_remote_wakeup = 0; 4976 data->udev->reset_resume = 1; 4977 } 4978 } 4979 4980 return 0; 4981 } 4982 4983 static void play_deferred(struct btusb_data *data) 4984 { 4985 struct urb *urb; 4986 int err; 4987 4988 while ((urb = usb_get_from_anchor(&data->deferred))) { 4989 usb_anchor_urb(urb, &data->tx_anchor); 4990 4991 err = usb_submit_urb(urb, GFP_ATOMIC); 4992 if (err < 0) { 4993 if (err != -EPERM && err != -ENODEV) 4994 BT_ERR("%s urb %p submission failed (%d)", 4995 data->hdev->name, urb, -err); 4996 kfree(urb->setup_packet); 4997 usb_unanchor_urb(urb); 4998 usb_free_urb(urb); 4999 break; 5000 } 5001 5002 data->tx_in_flight++; 5003 usb_free_urb(urb); 5004 } 5005 5006 /* Cleanup the rest deferred urbs. */ 5007 while ((urb = usb_get_from_anchor(&data->deferred))) { 5008 kfree(urb->setup_packet); 5009 usb_free_urb(urb); 5010 } 5011 } 5012 5013 static int btusb_resume(struct usb_interface *intf) 5014 { 5015 struct btusb_data *data = usb_get_intfdata(intf); 5016 struct hci_dev *hdev = data->hdev; 5017 int err = 0; 5018 5019 BT_DBG("intf %p", intf); 5020 5021 if (--data->suspend_count) 5022 return 0; 5023 5024 /* Disable only if not already disabled (keep it balanced) */ 5025 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 5026 disable_irq(data->oob_wake_irq); 5027 disable_irq_wake(data->oob_wake_irq); 5028 } 5029 5030 if (!test_bit(HCI_RUNNING, &hdev->flags)) 5031 goto done; 5032 5033 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 5034 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 5035 if (err < 0) { 5036 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 5037 goto failed; 5038 } 5039 } 5040 5041 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 5042 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 5043 if (err < 0) { 5044 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 5045 goto failed; 5046 } 5047 5048 btusb_submit_bulk_urb(hdev, GFP_NOIO); 5049 } 5050 5051 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 5052 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 5053 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 5054 else 5055 btusb_submit_isoc_urb(hdev, GFP_NOIO); 5056 } 5057 5058 if (data->resume) 5059 data->resume(hdev); 5060 5061 spin_lock_irq(&data->txlock); 5062 play_deferred(data); 5063 clear_bit(BTUSB_SUSPENDING, &data->flags); 5064 spin_unlock_irq(&data->txlock); 5065 schedule_work(&data->work); 5066 5067 return 0; 5068 5069 failed: 5070 usb_scuttle_anchored_urbs(&data->deferred); 5071 done: 5072 spin_lock_irq(&data->txlock); 5073 clear_bit(BTUSB_SUSPENDING, &data->flags); 5074 spin_unlock_irq(&data->txlock); 5075 5076 return err; 5077 } 5078 5079 #ifdef CONFIG_DEV_COREDUMP 5080 static void btusb_coredump(struct device *dev) 5081 { 5082 struct btusb_data *data = dev_get_drvdata(dev); 5083 struct hci_dev *hdev = data->hdev; 5084 5085 if (hdev->dump.coredump) 5086 hdev->dump.coredump(hdev); 5087 } 5088 #endif 5089 5090 static struct usb_driver btusb_driver = { 5091 .name = "btusb", 5092 .probe = btusb_probe, 5093 .disconnect = btusb_disconnect, 5094 .suspend = pm_ptr(btusb_suspend), 5095 .resume = pm_ptr(btusb_resume), 5096 .id_table = btusb_table, 5097 .supports_autosuspend = 1, 5098 .disable_hub_initiated_lpm = 1, 5099 5100 #ifdef CONFIG_DEV_COREDUMP 5101 .driver = { 5102 .coredump = btusb_coredump, 5103 }, 5104 #endif 5105 }; 5106 5107 module_usb_driver(btusb_driver); 5108 5109 module_param(disable_scofix, bool, 0644); 5110 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 5111 5112 module_param(force_scofix, bool, 0644); 5113 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 5114 5115 module_param(enable_autosuspend, bool, 0644); 5116 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 5117 5118 module_param(reset, bool, 0644); 5119 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 5120 5121 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 5122 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 5123 MODULE_VERSION(VERSION); 5124 MODULE_LICENSE("GPL"); 5125