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_BROKEN_EXT_SCAN BIT(29) 74 #define BTUSB_QUALCOMM BIT(30) 75 76 static const struct usb_device_id btusb_table[] = { 77 /* 78 * NXP IW610 (0471:0215): the composite device reports Bluetooth 79 * class at the whole-device level, so the generic entry below 80 * would also match this WiFi vendor interface. Ignore it here 81 * first so mwifiex-nxp can bind it instead. 82 */ 83 { USB_DEVICE_AND_INTERFACE_INFO(0x0471, 0x0215, 0xff, 0xff, 0xff), 84 .driver_info = BTUSB_IGNORE }, 85 86 /* Generic Bluetooth USB device */ 87 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 88 89 /* Generic Bluetooth AMP device */ 90 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 91 92 /* Generic Bluetooth USB interface */ 93 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 94 95 /* Apple-specific (Broadcom) devices */ 96 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 97 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 98 99 /* MediaTek MT76x0E */ 100 { USB_DEVICE(0x0e8d, 0x763f) }, 101 102 /* Broadcom SoftSailing reporting vendor specific */ 103 { USB_DEVICE(0x0a5c, 0x21e1) }, 104 105 /* Apple MacBookPro 7,1 */ 106 { USB_DEVICE(0x05ac, 0x8213) }, 107 108 /* Apple iMac11,1 */ 109 { USB_DEVICE(0x05ac, 0x8215) }, 110 111 /* Apple MacBookPro6,2 */ 112 { USB_DEVICE(0x05ac, 0x8218) }, 113 114 /* Apple MacBookAir3,1, MacBookAir3,2 */ 115 { USB_DEVICE(0x05ac, 0x821b) }, 116 117 /* Apple MacBookAir4,1 */ 118 { USB_DEVICE(0x05ac, 0x821f) }, 119 120 /* Apple MacBookPro8,2 */ 121 { USB_DEVICE(0x05ac, 0x821a) }, 122 123 /* Apple MacMini5,1 */ 124 { USB_DEVICE(0x05ac, 0x8281) }, 125 126 /* AVM BlueFRITZ! USB v2.0 */ 127 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 128 129 /* Bluetooth Ultraport Module from IBM */ 130 { USB_DEVICE(0x04bf, 0x030a) }, 131 132 /* ALPS Modules with non-standard id */ 133 { USB_DEVICE(0x044e, 0x3001) }, 134 { USB_DEVICE(0x044e, 0x3002) }, 135 136 /* Ericsson with non-standard id */ 137 { USB_DEVICE(0x0bdb, 0x1002) }, 138 139 /* Canyon CN-BTU1 with HID interfaces */ 140 { USB_DEVICE(0x0c10, 0x0000) }, 141 142 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 143 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* Broadcom BCM920703 (HTC Vive) */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* Foxconn - Hon Hai */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* Lite-On Technology - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* Broadcom devices with vendor specific id */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* ASUSTek Computer - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Belkin F8065bf - Broadcom based */ 170 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 171 .driver_info = BTUSB_BCM_PATCHRAM }, 172 173 /* IMC Networks - Broadcom based */ 174 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 175 .driver_info = BTUSB_BCM_PATCHRAM }, 176 177 /* Dell Computer - Broadcom based */ 178 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 179 .driver_info = BTUSB_BCM_PATCHRAM }, 180 181 /* Toshiba Corp - Broadcom based */ 182 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 183 .driver_info = BTUSB_BCM_PATCHRAM }, 184 185 /* Intel Bluetooth USB Bootloader (RAM module) */ 186 { USB_DEVICE(0x8087, 0x0a5a), 187 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 188 189 { } /* Terminating entry */ 190 }; 191 192 MODULE_DEVICE_TABLE(usb, btusb_table); 193 194 static const struct usb_device_id quirks_table[] = { 195 /* CSR BlueCore devices */ 196 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 197 198 /* Broadcom BCM2033 without firmware */ 199 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 200 201 /* Broadcom BCM2045 devices */ 202 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 203 204 /* Atheros 3011 with sflash firmware */ 205 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 206 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 207 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 208 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 209 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 210 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 211 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 212 213 /* Atheros AR9285 Malbec with sflash firmware */ 214 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 215 216 /* Atheros 3012 with sflash firmware */ 217 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 255 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 256 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 258 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 259 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 260 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 261 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 262 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 263 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 264 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 265 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 266 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 267 268 /* Atheros AR5BBU12 with sflash firmware */ 269 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 270 271 /* Atheros AR5BBU12 with sflash firmware */ 272 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 273 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 274 275 /* QCA ROME chipset */ 276 { USB_DEVICE(0x0b05, 0x1868), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 299 BTUSB_WIDEBAND_SPEECH }, 300 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 301 BTUSB_WIDEBAND_SPEECH }, 302 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 303 BTUSB_WIDEBAND_SPEECH }, 304 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 305 BTUSB_WIDEBAND_SPEECH }, 306 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 307 BTUSB_WIDEBAND_SPEECH }, 308 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 309 BTUSB_WIDEBAND_SPEECH }, 310 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 311 BTUSB_WIDEBAND_SPEECH }, 312 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 313 BTUSB_WIDEBAND_SPEECH }, 314 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 315 BTUSB_WIDEBAND_SPEECH }, 316 { USB_DEVICE(0x13d3, 0x3503), .driver_info = BTUSB_QCA_ROME | 317 BTUSB_WIDEBAND_SPEECH }, 318 319 /* QCA WCN6855 chipset */ 320 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 321 BTUSB_WIDEBAND_SPEECH }, 322 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 323 BTUSB_WIDEBAND_SPEECH }, 324 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH }, 326 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 327 BTUSB_WIDEBAND_SPEECH }, 328 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 329 BTUSB_WIDEBAND_SPEECH }, 330 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH }, 332 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 333 BTUSB_WIDEBAND_SPEECH }, 334 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 335 BTUSB_WIDEBAND_SPEECH }, 336 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH }, 338 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 339 BTUSB_WIDEBAND_SPEECH }, 340 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 341 BTUSB_WIDEBAND_SPEECH }, 342 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH }, 344 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 345 BTUSB_WIDEBAND_SPEECH }, 346 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 347 BTUSB_WIDEBAND_SPEECH }, 348 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH }, 350 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 351 BTUSB_WIDEBAND_SPEECH }, 352 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 353 BTUSB_WIDEBAND_SPEECH }, 354 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH }, 356 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 357 BTUSB_WIDEBAND_SPEECH }, 358 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 359 BTUSB_WIDEBAND_SPEECH }, 360 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH }, 362 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 363 BTUSB_WIDEBAND_SPEECH }, 364 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 365 BTUSB_WIDEBAND_SPEECH }, 366 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH }, 368 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 369 BTUSB_WIDEBAND_SPEECH }, 370 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 371 BTUSB_WIDEBAND_SPEECH }, 372 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH }, 374 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 375 BTUSB_WIDEBAND_SPEECH }, 376 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 377 BTUSB_WIDEBAND_SPEECH }, 378 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 379 BTUSB_WIDEBAND_SPEECH }, 380 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 381 BTUSB_WIDEBAND_SPEECH }, 382 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 383 BTUSB_WIDEBAND_SPEECH }, 384 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH }, 386 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 387 BTUSB_WIDEBAND_SPEECH }, 388 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 389 BTUSB_WIDEBAND_SPEECH }, 390 { USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH }, 392 393 /* QCA WCN785x chipset */ 394 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 395 BTUSB_WIDEBAND_SPEECH }, 396 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH }, 398 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 | 399 BTUSB_WIDEBAND_SPEECH }, 400 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 | 401 BTUSB_WIDEBAND_SPEECH }, 402 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH }, 404 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 | 405 BTUSB_WIDEBAND_SPEECH }, 406 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 | 407 BTUSB_WIDEBAND_SPEECH }, 408 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 | 409 BTUSB_WIDEBAND_SPEECH }, 410 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 | 411 BTUSB_WIDEBAND_SPEECH }, 412 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 | 413 BTUSB_WIDEBAND_SPEECH }, 414 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 | 415 BTUSB_WIDEBAND_SPEECH }, 416 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 | 417 BTUSB_WIDEBAND_SPEECH }, 418 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 | 419 BTUSB_WIDEBAND_SPEECH }, 420 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 | 421 BTUSB_WIDEBAND_SPEECH }, 422 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 | 423 BTUSB_WIDEBAND_SPEECH }, 424 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 | 425 BTUSB_WIDEBAND_SPEECH }, 426 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 | 427 BTUSB_WIDEBAND_SPEECH }, 428 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 | 429 BTUSB_WIDEBAND_SPEECH }, 430 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 | 431 BTUSB_WIDEBAND_SPEECH }, 432 433 /* Qualcomm multi-subsystem chipset QCC2072 */ 434 { USB_DEVICE(0x0cf3, 0xea00), .driver_info = BTUSB_QUALCOMM | 435 BTUSB_WIDEBAND_SPEECH }, 436 437 /* Broadcom BCM2035 */ 438 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 439 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 441 442 /* Broadcom BCM2045 */ 443 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 444 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 445 446 /* IBM/Lenovo ThinkPad with Broadcom chip */ 447 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 448 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 449 450 /* HP laptop with Broadcom chip */ 451 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 452 453 /* Dell laptop with Broadcom chip */ 454 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 455 456 /* Dell Wireless 370 and 410 devices */ 457 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 458 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 459 460 /* Belkin F8T012 and F8T013 devices */ 461 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 462 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 463 464 /* Asus WL-BTD202 device */ 465 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 466 467 /* Kensington Bluetooth USB adapter */ 468 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 469 470 /* RTX Telecom based adapters with buggy SCO support */ 471 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 472 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 473 474 /* CONWISE Technology based adapters with buggy SCO support */ 475 { USB_DEVICE(0x0e5e, 0x6622), 476 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 477 478 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 479 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 480 481 /* Digianswer devices */ 482 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 483 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 484 485 /* CSR BlueCore Bluetooth Sniffer */ 486 { USB_DEVICE(0x0a12, 0x0002), 487 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 488 489 /* Frontline ComProbe Bluetooth Sniffer */ 490 { USB_DEVICE(0x16d3, 0x0002), 491 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 492 493 /* Marvell Bluetooth devices */ 494 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 495 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 496 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 497 498 /* 499 * NXP IW610 BT interfaces (Marvell-lineage silicon, same quirk as 500 * the 0x1286 entries above). Scoped to the BT interface class, 501 * not just VID/PID -- see the btusb_table entry above. 502 */ 503 { USB_DEVICE_AND_INTERFACE_INFO(0x0471, 0x0215, 0xe0, 0x01, 0x01), 504 .driver_info = BTUSB_MARVELL }, 505 506 /* Intel Bluetooth devices */ 507 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 508 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 509 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 510 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 511 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 512 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 513 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED }, 514 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED }, 515 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED }, 516 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED }, 517 { USB_DEVICE(0x8087, 0x0043), .driver_info = BTUSB_INTEL_COMBINED }, /* Otter Peak 2 */ 518 { USB_DEVICE(0x8087, 0x0040), .driver_info = BTUSB_INTEL_COMBINED }, /* Lizard Peak 2 */ 519 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 520 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 521 BTUSB_INTEL_NO_WBS_SUPPORT | 522 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 523 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 524 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 525 BTUSB_INTEL_NO_WBS_SUPPORT | 526 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 527 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 528 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 529 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 530 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 531 532 /* Other Intel Bluetooth devices */ 533 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 534 .driver_info = BTUSB_IGNORE }, 535 536 /* Realtek 8821CE Bluetooth devices */ 537 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 538 BTUSB_WIDEBAND_SPEECH }, 539 { USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK | 540 BTUSB_WIDEBAND_SPEECH }, 541 { USB_DEVICE(0x13d3, 0x3556), .driver_info = BTUSB_REALTEK | 542 BTUSB_WIDEBAND_SPEECH }, 543 { USB_DEVICE(0x13d3, 0x3558), .driver_info = BTUSB_REALTEK | 544 BTUSB_WIDEBAND_SPEECH }, 545 546 /* Realtek 8822CE Bluetooth devices */ 547 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 548 BTUSB_WIDEBAND_SPEECH }, 549 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 550 BTUSB_WIDEBAND_SPEECH }, 551 552 /* Realtek 8822CU Bluetooth devices */ 553 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 554 BTUSB_WIDEBAND_SPEECH }, 555 556 /* Realtek 8851BE Bluetooth devices */ 557 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK }, 558 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, 559 { USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK }, 560 { USB_DEVICE(0x0489, 0xe112), .driver_info = BTUSB_REALTEK | 561 BTUSB_WIDEBAND_SPEECH }, 562 563 /* Realtek 8851BU Bluetooth devices */ 564 { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK | 565 BTUSB_WIDEBAND_SPEECH }, 566 { USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK | 567 BTUSB_WIDEBAND_SPEECH }, 568 { USB_DEVICE(0x7392, 0xe611), .driver_info = BTUSB_REALTEK | 569 BTUSB_WIDEBAND_SPEECH }, 570 { USB_DEVICE(0x2c4e, 0x0128), .driver_info = BTUSB_REALTEK | 571 BTUSB_WIDEBAND_SPEECH }, 572 573 /* Realtek 8852AE Bluetooth devices */ 574 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 575 BTUSB_WIDEBAND_SPEECH }, 576 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 577 BTUSB_WIDEBAND_SPEECH }, 578 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 579 BTUSB_WIDEBAND_SPEECH }, 580 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 581 BTUSB_WIDEBAND_SPEECH }, 582 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 583 BTUSB_WIDEBAND_SPEECH }, 584 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 585 BTUSB_WIDEBAND_SPEECH }, 586 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 587 BTUSB_WIDEBAND_SPEECH }, 588 589 /* Realtek 8852CE Bluetooth devices */ 590 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 591 BTUSB_WIDEBAND_SPEECH }, 592 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 593 BTUSB_WIDEBAND_SPEECH }, 594 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 595 BTUSB_WIDEBAND_SPEECH }, 596 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 597 BTUSB_WIDEBAND_SPEECH }, 598 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 599 BTUSB_WIDEBAND_SPEECH }, 600 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 601 BTUSB_WIDEBAND_SPEECH }, 602 { USB_DEVICE(0x13d3, 0x3612), .driver_info = BTUSB_REALTEK | 603 BTUSB_WIDEBAND_SPEECH }, 604 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK | 605 BTUSB_WIDEBAND_SPEECH }, 606 607 /* Realtek 8852BE Bluetooth devices */ 608 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 609 BTUSB_WIDEBAND_SPEECH }, 610 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK | 611 BTUSB_WIDEBAND_SPEECH }, 612 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 613 BTUSB_WIDEBAND_SPEECH }, 614 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK | 615 BTUSB_WIDEBAND_SPEECH }, 616 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK | 617 BTUSB_WIDEBAND_SPEECH }, 618 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 619 BTUSB_WIDEBAND_SPEECH }, 620 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK | 621 BTUSB_WIDEBAND_SPEECH }, 622 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK | 623 BTUSB_WIDEBAND_SPEECH }, 624 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK | 625 BTUSB_WIDEBAND_SPEECH }, 626 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK | 627 BTUSB_WIDEBAND_SPEECH }, 628 629 /* Realtek 8852BT/8852BE-VT Bluetooth devices */ 630 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK | 631 BTUSB_WIDEBAND_SPEECH }, 632 { USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK | 633 BTUSB_WIDEBAND_SPEECH }, 634 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK | 635 BTUSB_WIDEBAND_SPEECH }, 636 { USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK | 637 BTUSB_WIDEBAND_SPEECH }, 638 639 /* Realtek 8922AE Bluetooth devices */ 640 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK | 641 BTUSB_WIDEBAND_SPEECH }, 642 { USB_DEVICE(0x0bda, 0xd922), .driver_info = BTUSB_REALTEK | 643 BTUSB_WIDEBAND_SPEECH }, 644 { USB_DEVICE(0x0bda, 0xd923), .driver_info = BTUSB_REALTEK | 645 BTUSB_WIDEBAND_SPEECH }, 646 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK | 647 BTUSB_WIDEBAND_SPEECH }, 648 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK | 649 BTUSB_WIDEBAND_SPEECH }, 650 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK | 651 BTUSB_WIDEBAND_SPEECH }, 652 653 /* Realtek 8761BU Bluetooth devices */ 654 { USB_DEVICE(0x0bda, 0xa728), .driver_info = BTUSB_REALTEK | 655 BTUSB_BROKEN_EXT_SCAN }, 656 657 /* Realtek Bluetooth devices */ 658 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 659 .driver_info = BTUSB_REALTEK }, 660 661 /* MediaTek Bluetooth devices */ 662 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 663 .driver_info = BTUSB_MEDIATEK | 664 BTUSB_WIDEBAND_SPEECH }, 665 666 /* Additional MediaTek MT7615E Bluetooth devices */ 667 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 668 669 /* Additional MediaTek MT7663 Bluetooth devices */ 670 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 671 BTUSB_WIDEBAND_SPEECH }, 672 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 673 BTUSB_WIDEBAND_SPEECH }, 674 675 /* Additional MediaTek MT7668 Bluetooth devices */ 676 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 677 BTUSB_WIDEBAND_SPEECH }, 678 679 /* Additional MediaTek MT7920 Bluetooth devices */ 680 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK | 681 BTUSB_WIDEBAND_SPEECH }, 682 { USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK | 683 BTUSB_WIDEBAND_SPEECH }, 684 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK | 685 BTUSB_WIDEBAND_SPEECH }, 686 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK | 687 BTUSB_WIDEBAND_SPEECH }, 688 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK | 689 BTUSB_WIDEBAND_SPEECH }, 690 { USB_DEVICE(0x0489, 0xe158), .driver_info = BTUSB_MEDIATEK | 691 BTUSB_WIDEBAND_SPEECH }, 692 693 /* Additional MediaTek MT7921 Bluetooth devices */ 694 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 695 BTUSB_WIDEBAND_SPEECH }, 696 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 697 BTUSB_WIDEBAND_SPEECH }, 698 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 699 BTUSB_WIDEBAND_SPEECH }, 700 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 701 BTUSB_WIDEBAND_SPEECH }, 702 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 703 BTUSB_WIDEBAND_SPEECH }, 704 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 705 BTUSB_WIDEBAND_SPEECH }, 706 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 707 BTUSB_WIDEBAND_SPEECH }, 708 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 709 BTUSB_WIDEBAND_SPEECH }, 710 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 711 BTUSB_WIDEBAND_SPEECH }, 712 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK | 713 BTUSB_WIDEBAND_SPEECH }, 714 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 715 BTUSB_WIDEBAND_SPEECH }, 716 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 717 BTUSB_WIDEBAND_SPEECH }, 718 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK | 719 BTUSB_WIDEBAND_SPEECH }, 720 /* MediaTek MT7902 Bluetooth devices */ 721 { USB_DEVICE(0x0489, 0xe156), .driver_info = BTUSB_MEDIATEK | 722 BTUSB_WIDEBAND_SPEECH }, 723 { USB_DEVICE(0x0e8d, 0x1ede), .driver_info = BTUSB_MEDIATEK | 724 BTUSB_WIDEBAND_SPEECH }, 725 { USB_DEVICE(0x13d3, 0x3579), .driver_info = BTUSB_MEDIATEK | 726 BTUSB_WIDEBAND_SPEECH }, 727 { USB_DEVICE(0x13d3, 0x3580), .driver_info = BTUSB_MEDIATEK | 728 BTUSB_WIDEBAND_SPEECH }, 729 { USB_DEVICE(0x13d3, 0x3594), .driver_info = BTUSB_MEDIATEK | 730 BTUSB_WIDEBAND_SPEECH }, 731 { USB_DEVICE(0x13d3, 0x3596), .driver_info = BTUSB_MEDIATEK | 732 BTUSB_WIDEBAND_SPEECH }, 733 /* MediaTek MT7922 Bluetooth devices */ 734 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK | 735 BTUSB_WIDEBAND_SPEECH }, 736 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK | 737 BTUSB_WIDEBAND_SPEECH }, 738 739 /* MediaTek MT7922A Bluetooth devices */ 740 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 741 BTUSB_WIDEBAND_SPEECH }, 742 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 743 BTUSB_WIDEBAND_SPEECH }, 744 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 745 BTUSB_WIDEBAND_SPEECH }, 746 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 747 BTUSB_WIDEBAND_SPEECH }, 748 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK | 749 BTUSB_WIDEBAND_SPEECH }, 750 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 751 BTUSB_WIDEBAND_SPEECH }, 752 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK | 753 BTUSB_WIDEBAND_SPEECH }, 754 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK | 755 BTUSB_WIDEBAND_SPEECH }, 756 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK | 757 BTUSB_WIDEBAND_SPEECH }, 758 { USB_DEVICE(0x0489, 0xe11d), .driver_info = BTUSB_MEDIATEK | 759 BTUSB_WIDEBAND_SPEECH }, 760 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK | 761 BTUSB_WIDEBAND_SPEECH }, 762 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK | 763 BTUSB_WIDEBAND_SPEECH }, 764 { USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK | 765 BTUSB_WIDEBAND_SPEECH }, 766 { USB_DEVICE(0x0489, 0xe174), .driver_info = BTUSB_MEDIATEK | 767 BTUSB_WIDEBAND_SPEECH }, 768 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | 769 BTUSB_WIDEBAND_SPEECH }, 770 { USB_DEVICE(0x04ca, 0x3807), .driver_info = BTUSB_MEDIATEK | 771 BTUSB_WIDEBAND_SPEECH }, 772 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | 773 BTUSB_WIDEBAND_SPEECH }, 774 { USB_DEVICE(0x0e8d, 0x223c), .driver_info = BTUSB_MEDIATEK | 775 BTUSB_WIDEBAND_SPEECH }, 776 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 777 BTUSB_WIDEBAND_SPEECH }, 778 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK | 779 BTUSB_WIDEBAND_SPEECH }, 780 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK | 781 BTUSB_WIDEBAND_SPEECH }, 782 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK | 783 BTUSB_WIDEBAND_SPEECH }, 784 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK | 785 BTUSB_WIDEBAND_SPEECH }, 786 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK | 787 BTUSB_WIDEBAND_SPEECH }, 788 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK | 789 BTUSB_WIDEBAND_SPEECH }, 790 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK | 791 BTUSB_WIDEBAND_SPEECH }, 792 793 /* Additional MediaTek MT7925 Bluetooth devices */ 794 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK | 795 BTUSB_WIDEBAND_SPEECH }, 796 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK | 797 BTUSB_WIDEBAND_SPEECH }, 798 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK | 799 BTUSB_WIDEBAND_SPEECH }, 800 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK | 801 BTUSB_WIDEBAND_SPEECH }, 802 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK | 803 BTUSB_WIDEBAND_SPEECH }, 804 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK | 805 BTUSB_WIDEBAND_SPEECH }, 806 { USB_DEVICE(0x0489, 0xe13a), .driver_info = BTUSB_MEDIATEK | 807 BTUSB_WIDEBAND_SPEECH }, 808 { USB_DEVICE(0x0489, 0xe0fa), .driver_info = BTUSB_MEDIATEK | 809 BTUSB_WIDEBAND_SPEECH }, 810 { USB_DEVICE(0x0489, 0xe10f), .driver_info = BTUSB_MEDIATEK | 811 BTUSB_WIDEBAND_SPEECH }, 812 { USB_DEVICE(0x0489, 0xe110), .driver_info = BTUSB_MEDIATEK | 813 BTUSB_WIDEBAND_SPEECH }, 814 { USB_DEVICE(0x0489, 0xe116), .driver_info = BTUSB_MEDIATEK | 815 BTUSB_WIDEBAND_SPEECH }, 816 { USB_DEVICE(0x13d3, 0x3588), .driver_info = BTUSB_MEDIATEK | 817 BTUSB_WIDEBAND_SPEECH }, 818 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK | 819 BTUSB_WIDEBAND_SPEECH }, 820 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK | 821 BTUSB_WIDEBAND_SPEECH }, 822 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK | 823 BTUSB_WIDEBAND_SPEECH }, 824 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK | 825 BTUSB_WIDEBAND_SPEECH }, 826 { USB_DEVICE(0x0e8d, 0x8c38), .driver_info = BTUSB_MEDIATEK | 827 BTUSB_WIDEBAND_SPEECH }, 828 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK | 829 BTUSB_WIDEBAND_SPEECH }, 830 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK | 831 BTUSB_WIDEBAND_SPEECH }, 832 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK | 833 BTUSB_WIDEBAND_SPEECH }, 834 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK | 835 BTUSB_WIDEBAND_SPEECH }, 836 { USB_DEVICE(0x13d3, 0x3609), .driver_info = BTUSB_MEDIATEK | 837 BTUSB_WIDEBAND_SPEECH }, 838 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK | 839 BTUSB_WIDEBAND_SPEECH }, 840 { USB_DEVICE(0x13d3, 0x3625), .driver_info = BTUSB_MEDIATEK | 841 BTUSB_WIDEBAND_SPEECH }, 842 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK | 843 BTUSB_WIDEBAND_SPEECH }, 844 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK | 845 BTUSB_WIDEBAND_SPEECH }, 846 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK | 847 BTUSB_WIDEBAND_SPEECH }, 848 { USB_DEVICE(0x13d3, 0x3631), .driver_info = BTUSB_MEDIATEK | 849 BTUSB_WIDEBAND_SPEECH }, 850 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK | 851 BTUSB_WIDEBAND_SPEECH }, 852 853 /* Additional Realtek 8723AE Bluetooth devices */ 854 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 855 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 856 857 /* Additional Realtek 8723BE Bluetooth devices */ 858 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 859 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 860 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 861 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 862 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 863 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 864 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 865 866 /* Additional Realtek 8723BU Bluetooth devices */ 867 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 868 { USB_DEVICE(0x2c0a, 0x8761), .driver_info = BTUSB_REALTEK }, 869 870 /* Additional Realtek 8723DE Bluetooth devices */ 871 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 872 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 873 874 /* Additional Realtek 8761BUV Bluetooth devices */ 875 { USB_DEVICE(0x2c4e, 0x0115), .driver_info = BTUSB_REALTEK | 876 BTUSB_WIDEBAND_SPEECH }, 877 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 878 BTUSB_WIDEBAND_SPEECH }, 879 { USB_DEVICE(0x2357, 0x0607), .driver_info = BTUSB_REALTEK | 880 BTUSB_WIDEBAND_SPEECH }, 881 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 882 BTUSB_WIDEBAND_SPEECH }, 883 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 884 BTUSB_WIDEBAND_SPEECH }, 885 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 886 BTUSB_WIDEBAND_SPEECH }, 887 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK | 888 BTUSB_WIDEBAND_SPEECH }, 889 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 890 BTUSB_WIDEBAND_SPEECH }, 891 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 892 BTUSB_WIDEBAND_SPEECH }, 893 { USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK | 894 BTUSB_WIDEBAND_SPEECH }, 895 { USB_DEVICE(0x37ad, 0x0600), .driver_info = BTUSB_REALTEK | 896 BTUSB_WIDEBAND_SPEECH }, 897 { USB_DEVICE(0x14b0, 0x047a), .driver_info = BTUSB_REALTEK | 898 BTUSB_WIDEBAND_SPEECH }, 899 900 /* Additional Realtek 8761CU Bluetooth devices */ 901 { USB_DEVICE(0x0b05, 0x1bef), .driver_info = BTUSB_REALTEK | 902 BTUSB_WIDEBAND_SPEECH }, 903 { USB_DEVICE(0x0b05, 0x1d70), .driver_info = BTUSB_REALTEK | 904 BTUSB_WIDEBAND_SPEECH }, 905 906 /* Additional Realtek 8821AE Bluetooth devices */ 907 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 908 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 909 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 910 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 911 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 912 913 /* Additional Realtek 8822BE Bluetooth devices */ 914 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 915 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 916 917 /* Additional Realtek 8822CE Bluetooth devices */ 918 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 919 BTUSB_WIDEBAND_SPEECH }, 920 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 921 BTUSB_WIDEBAND_SPEECH }, 922 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 923 BTUSB_WIDEBAND_SPEECH }, 924 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 925 BTUSB_WIDEBAND_SPEECH }, 926 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 927 BTUSB_WIDEBAND_SPEECH }, 928 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 929 BTUSB_WIDEBAND_SPEECH }, 930 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 931 BTUSB_WIDEBAND_SPEECH }, 932 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 933 BTUSB_WIDEBAND_SPEECH }, 934 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 935 BTUSB_WIDEBAND_SPEECH }, 936 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 937 BTUSB_WIDEBAND_SPEECH }, 938 { USB_DEVICE(0x1357, 0xc123), .driver_info = BTUSB_REALTEK | 939 BTUSB_WIDEBAND_SPEECH }, 940 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 941 BTUSB_WIDEBAND_SPEECH }, 942 943 /* Barrot Technology Bluetooth devices */ 944 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT }, 945 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT }, 946 947 /* Actions Semiconductor ATS2851 based devices */ 948 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 949 950 /* Silicon Wave based devices */ 951 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 952 953 { } /* Terminating entry */ 954 }; 955 956 /* The Bluetooth USB module build into some devices needs to be reset on resume, 957 * this is a problem with the platform (likely shutting off all power) not with 958 * the module itself. So we use a DMI list to match known broken platforms. 959 */ 960 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 961 { 962 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 963 .matches = { 964 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 965 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 966 }, 967 }, 968 { 969 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 970 .matches = { 971 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 972 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 973 }, 974 }, 975 { 976 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 977 .matches = { 978 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 979 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 980 }, 981 }, 982 {} 983 }; 984 985 struct qca_dump_info { 986 /* fields for dump collection */ 987 u16 id_vendor; 988 u16 id_product; 989 u32 fw_version; 990 u32 controller_id; 991 u32 ram_dump_size; 992 u16 ram_dump_seqno; 993 }; 994 995 struct btqca_data { 996 struct qca_dump_info qca_dump; 997 }; 998 999 #define BTUSB_MAX_ISOC_FRAMES 10 1000 1001 #define BTUSB_INTR_RUNNING 0 1002 #define BTUSB_BULK_RUNNING 1 1003 #define BTUSB_ISOC_RUNNING 2 1004 #define BTUSB_SUSPENDING 3 1005 #define BTUSB_DID_ISO_RESUME 4 1006 #define BTUSB_BOOTLOADER 5 1007 #define BTUSB_DOWNLOADING 6 1008 #define BTUSB_FIRMWARE_LOADED 7 1009 #define BTUSB_FIRMWARE_FAILED 8 1010 #define BTUSB_BOOTING 9 1011 #define BTUSB_DIAG_RUNNING 10 1012 #define BTUSB_OOB_WAKE_ENABLED 11 1013 #define BTUSB_HW_RESET_ACTIVE 12 1014 #define BTUSB_TX_WAIT_VND_EVT 13 1015 #define BTUSB_WAKEUP_AUTOSUSPEND 14 1016 #define BTUSB_USE_ALT3_FOR_WBS 15 1017 #define BTUSB_ALT6_CONTINUOUS_TX 16 1018 #define BTUSB_HW_SSR_ACTIVE 17 1019 #define BTUSB_WAKEUP_BROKEN 18 1020 #define BTUSB_RESET 19 1021 1022 #define BTUSB_PROTO_LEGACY 0x00 1023 #define BTUSB_PROTO_H4 0x01 1024 1025 struct btusb_data { 1026 struct hci_dev *hdev; 1027 struct usb_device *udev; 1028 struct usb_interface *intf; 1029 struct usb_interface *isoc; 1030 struct usb_interface *diag; 1031 unsigned isoc_ifnum; 1032 1033 unsigned long flags; 1034 1035 bool poll_sync; 1036 int intr_interval; 1037 struct work_struct work; 1038 struct work_struct waker; 1039 struct delayed_work rx_work; 1040 1041 struct sk_buff_head acl_q; 1042 1043 struct usb_anchor deferred; 1044 struct usb_anchor tx_anchor; 1045 int tx_in_flight; 1046 spinlock_t txlock; 1047 1048 struct usb_anchor intr_anchor; 1049 struct usb_anchor bulk_anchor; 1050 struct usb_anchor isoc_anchor; 1051 struct usb_anchor diag_anchor; 1052 struct usb_anchor ctrl_anchor; 1053 spinlock_t rxlock; 1054 1055 struct sk_buff *evt_skb; 1056 struct sk_buff *acl_skb; 1057 struct sk_buff *sco_skb; 1058 struct sk_buff *rx_skb; 1059 1060 struct usb_endpoint_descriptor *intr_ep; 1061 struct usb_endpoint_descriptor *bulk_tx_ep; 1062 struct usb_endpoint_descriptor *bulk_rx_ep; 1063 struct usb_endpoint_descriptor *isoc_tx_ep; 1064 struct usb_endpoint_descriptor *isoc_rx_ep; 1065 struct usb_endpoint_descriptor *diag_tx_ep; 1066 struct usb_endpoint_descriptor *diag_rx_ep; 1067 1068 struct gpio_desc *reset_gpio; 1069 1070 __u8 cmdreq_type; 1071 __u8 cmdreq; 1072 __u8 proto; 1073 1074 unsigned int sco_num; 1075 unsigned int air_mode; 1076 bool usb_alt6_packet_flow; 1077 int isoc_altsetting; 1078 int suspend_count; 1079 const struct usb_device_id *match_id; 1080 1081 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 1082 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 1083 int (*recv_intr)(struct btusb_data *data, void *buffer, int count); 1084 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 1085 1086 int (*setup_on_usb)(struct hci_dev *hdev); 1087 1088 int (*suspend)(struct hci_dev *hdev); 1089 int (*resume)(struct hci_dev *hdev); 1090 int (*disconnect)(struct hci_dev *hdev); 1091 1092 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 1093 }; 1094 1095 static void btusb_reset(struct hci_dev *hdev) 1096 { 1097 struct btusb_data *data; 1098 int err; 1099 1100 data = hci_get_drvdata(hdev); 1101 err = usb_autopm_get_interface(data->intf); 1102 if (err) { 1103 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 1104 return; 1105 } 1106 1107 if (test_and_set_bit(BTUSB_RESET, &data->flags)) 1108 usb_autopm_put_interface_no_suspend(data->intf); 1109 1110 bt_dev_err(hdev, "Resetting usb device."); 1111 usb_queue_reset_device(data->intf); 1112 } 1113 1114 static void btusb_intel_reset(struct hci_dev *hdev) 1115 { 1116 struct btusb_data *data = hci_get_drvdata(hdev); 1117 struct gpio_desc *reset_gpio = data->reset_gpio; 1118 struct btintel_data *intel_data = hci_get_priv(hdev); 1119 1120 if (intel_data->acpi_reset_method) { 1121 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) { 1122 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again"); 1123 return; 1124 } 1125 1126 bt_dev_err(hdev, "Initiating acpi reset method"); 1127 /* If ACPI reset method fails, lets try with legacy GPIO 1128 * toggling 1129 */ 1130 if (!intel_data->acpi_reset_method(hdev)) { 1131 return; 1132 } 1133 } 1134 1135 if (!reset_gpio) { 1136 btusb_reset(hdev); 1137 return; 1138 } 1139 1140 /* 1141 * Toggle the hard reset line if the platform provides one. The reset 1142 * is going to yank the device off the USB and then replug. So doing 1143 * once is enough. The cleanup is handled correctly on the way out 1144 * (standard USB disconnect), and the new device is detected cleanly 1145 * and bound to the driver again like it should be. 1146 */ 1147 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1148 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1149 return; 1150 } 1151 1152 bt_dev_err(hdev, "Initiating HW reset via gpio"); 1153 gpiod_set_value_cansleep(reset_gpio, 1); 1154 msleep(100); 1155 gpiod_set_value_cansleep(reset_gpio, 0); 1156 } 1157 1158 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01 1159 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02 1160 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03 1161 1162 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34 1163 1164 struct rtk_dev_coredump_hdr { 1165 u8 type; 1166 u8 code; 1167 u8 reserved[2]; 1168 } __packed; 1169 1170 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev, 1171 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len) 1172 { 1173 struct sk_buff *skb; 1174 1175 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC); 1176 if (!skb) 1177 return; 1178 1179 skb_put_data(skb, hdr, sizeof(*hdr)); 1180 if (len) 1181 skb_put_data(skb, buf, len); 1182 1183 if (!hci_devcd_init(hdev, skb->len)) { 1184 hci_devcd_append(hdev, skb); 1185 hci_devcd_complete(hdev); 1186 } else { 1187 bt_dev_err(hdev, "RTL: Failed to generate devcoredump"); 1188 kfree_skb(skb); 1189 } 1190 } 1191 1192 static void btusb_rtl_reset(struct hci_dev *hdev) 1193 { 1194 struct btusb_data *data = hci_get_drvdata(hdev); 1195 struct gpio_desc *reset_gpio = data->reset_gpio; 1196 struct rtk_dev_coredump_hdr hdr = { 1197 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT, 1198 }; 1199 1200 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1201 1202 if (!reset_gpio) { 1203 btusb_reset(hdev); 1204 return; 1205 } 1206 1207 /* Toggle the hard reset line. The Realtek device is going to 1208 * yank itself off the USB and then replug. The cleanup is handled 1209 * correctly on the way out (standard USB disconnect), and the new 1210 * device is detected cleanly and bound to the driver again like 1211 * it should be. 1212 */ 1213 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1214 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1215 return; 1216 } 1217 1218 bt_dev_err(hdev, "Reset Realtek device via gpio"); 1219 gpiod_set_value_cansleep(reset_gpio, 1); 1220 msleep(200); 1221 gpiod_set_value_cansleep(reset_gpio, 0); 1222 } 1223 1224 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code) 1225 { 1226 struct rtk_dev_coredump_hdr hdr = { 1227 .type = RTK_DEVCOREDUMP_CODE_HW_ERR, 1228 .code = code, 1229 }; 1230 1231 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code); 1232 1233 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0); 1234 } 1235 1236 static void btusb_qca_reset(struct hci_dev *hdev) 1237 { 1238 struct btusb_data *data = hci_get_drvdata(hdev); 1239 struct gpio_desc *reset_gpio = data->reset_gpio; 1240 1241 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 1242 bt_dev_info(hdev, "Ramdump in progress, defer reset"); 1243 return; 1244 } 1245 1246 if (reset_gpio) { 1247 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 1248 1249 /* Toggle the hard reset line. The qca bt device is going to 1250 * yank itself off the USB and then replug. The cleanup is handled 1251 * correctly on the way out (standard USB disconnect), and the new 1252 * device is detected cleanly and bound to the driver again like 1253 * it should be. 1254 */ 1255 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 1256 bt_dev_err(hdev, "last reset failed? Not resetting again"); 1257 return; 1258 } 1259 1260 gpiod_set_value_cansleep(reset_gpio, 0); 1261 msleep(200); 1262 gpiod_set_value_cansleep(reset_gpio, 1); 1263 1264 return; 1265 } 1266 1267 btusb_reset(hdev); 1268 } 1269 1270 static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb) 1271 { 1272 /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug 1273 * packets as ACL frames with connection handle 0x2EDC. These are not real 1274 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent 1275 * "ACL packet for unknown connection handle 3804" errors. 1276 */ 1277 if (skb->len >= 2) { 1278 u16 handle = get_unaligned_le16(skb->data); 1279 1280 if (handle == 0x2EDC) 1281 return HCI_DIAG_PKT; 1282 } 1283 1284 /* Use default packet type for other packets */ 1285 return hci_skb_pkt_type(skb); 1286 } 1287 1288 static inline void btusb_free_frags(struct btusb_data *data) 1289 { 1290 unsigned long flags; 1291 1292 spin_lock_irqsave(&data->rxlock, flags); 1293 1294 dev_kfree_skb_irq(data->evt_skb); 1295 data->evt_skb = NULL; 1296 1297 dev_kfree_skb_irq(data->acl_skb); 1298 data->acl_skb = NULL; 1299 1300 dev_kfree_skb_irq(data->sco_skb); 1301 data->sco_skb = NULL; 1302 1303 /* rx_skb may hold an ERR_PTR from a previous h4_recv_skb() call */ 1304 if (!IS_ERR(data->rx_skb)) 1305 dev_kfree_skb_irq(data->rx_skb); 1306 data->rx_skb = NULL; 1307 1308 spin_unlock_irqrestore(&data->rxlock, flags); 1309 } 1310 1311 static int btusb_recv_event(struct hci_dev *hdev, struct sk_buff *skb) 1312 { 1313 struct btusb_data *data = hci_get_drvdata(hdev); 1314 int err; 1315 1316 err = data->recv_event(hdev, skb); 1317 1318 if (data->intr_interval) { 1319 /* Trigger dequeue immediately if an event is received */ 1320 schedule_delayed_work(&data->rx_work, 0); 1321 } 1322 1323 return err; 1324 } 1325 1326 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 1327 { 1328 struct sk_buff *skb; 1329 unsigned long flags; 1330 int err = 0; 1331 1332 spin_lock_irqsave(&data->rxlock, flags); 1333 skb = data->evt_skb; 1334 1335 while (count) { 1336 int len; 1337 1338 if (!skb) { 1339 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 1340 if (!skb) { 1341 err = -ENOMEM; 1342 break; 1343 } 1344 1345 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1346 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1347 } 1348 1349 len = min_t(uint, hci_skb_expect(skb), count); 1350 skb_put_data(skb, buffer, len); 1351 1352 count -= len; 1353 buffer += len; 1354 hci_skb_expect(skb) -= len; 1355 1356 if (skb->len == HCI_EVENT_HDR_SIZE) { 1357 /* Complete event header */ 1358 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1359 1360 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1361 kfree_skb(skb); 1362 skb = NULL; 1363 1364 err = -EILSEQ; 1365 break; 1366 } 1367 } 1368 1369 if (!hci_skb_expect(skb)) { 1370 /* Each chunk should correspond to at least 1 or more 1371 * events so if there are still bytes left that doesn't 1372 * constitute a new event this is likely a bug in the 1373 * controller. 1374 */ 1375 if (count && count < HCI_EVENT_HDR_SIZE) { 1376 bt_dev_warn(data->hdev, 1377 "Unexpected continuation: %d bytes", 1378 count); 1379 count = 0; 1380 } 1381 1382 /* Complete frame */ 1383 btusb_recv_event(data->hdev, skb); 1384 skb = NULL; 1385 } 1386 } 1387 1388 data->evt_skb = skb; 1389 spin_unlock_irqrestore(&data->rxlock, flags); 1390 1391 return err; 1392 } 1393 1394 static int btusb_recv_acl(struct hci_dev *hdev, struct sk_buff *skb) 1395 { 1396 struct btusb_data *data = hci_get_drvdata(hdev); 1397 1398 /* Only queue ACL packet if intr_interval is set as it means 1399 * force_poll_sync has been enabled. 1400 */ 1401 if (!data->intr_interval) 1402 return data->recv_acl(hdev, skb); 1403 1404 skb_queue_tail(&data->acl_q, skb); 1405 schedule_delayed_work(&data->rx_work, data->intr_interval); 1406 1407 return 0; 1408 } 1409 1410 static int btusb_recv_frame(struct hci_dev *hdev, struct sk_buff *skb) 1411 { 1412 u8 pkt_type = hci_skb_pkt_type(skb); 1413 int ret; 1414 1415 switch (pkt_type) { 1416 case HCI_EVENT_PKT: 1417 ret = btusb_recv_event(hdev, skb); 1418 break; 1419 case HCI_ACLDATA_PKT: 1420 ret = btusb_recv_acl(hdev, skb); 1421 break; 1422 case HCI_SCODATA_PKT: 1423 case HCI_ISODATA_PKT: 1424 ret = hci_recv_frame(hdev, skb); 1425 break; 1426 default: 1427 dev_kfree_skb_irq(skb); 1428 ret = -EINVAL; 1429 break; 1430 } 1431 1432 return ret; 1433 } 1434 1435 /* Dispatch through the btusb_recv_* wrappers so that vendor specific 1436 * handling (data->recv_event, data->recv_acl) is preserved in H:4 mode. 1437 */ 1438 static const struct h4_recv_pkt btusb_recv_pkts[] = { 1439 { H4_RECV_ACL, .recv = btusb_recv_acl }, 1440 { H4_RECV_SCO, .recv = hci_recv_frame }, 1441 { H4_RECV_EVENT, .recv = btusb_recv_event }, 1442 { H4_RECV_ISO, .recv = hci_recv_frame }, 1443 }; 1444 1445 static int btusb_recv_h4(struct btusb_data *data, void *buffer, int count) 1446 { 1447 unsigned long flags; 1448 int err = 0; 1449 1450 spin_lock_irqsave(&data->rxlock, flags); 1451 data->rx_skb = h4_recv_skb(data->hdev, NULL, NULL, data->rx_skb, buffer, 1452 count, btusb_recv_pkts, 1453 ARRAY_SIZE(btusb_recv_pkts)); 1454 if (IS_ERR(data->rx_skb)) 1455 err = PTR_ERR(data->rx_skb); 1456 spin_unlock_irqrestore(&data->rxlock, flags); 1457 1458 return err; 1459 } 1460 1461 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1462 { 1463 struct sk_buff *skb; 1464 unsigned long flags; 1465 int err = 0; 1466 1467 if (data->proto == BTUSB_PROTO_H4) 1468 return btusb_recv_h4(data, buffer, count); 1469 1470 spin_lock_irqsave(&data->rxlock, flags); 1471 skb = data->acl_skb; 1472 1473 while (count) { 1474 int len; 1475 1476 if (!skb) { 1477 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1478 if (!skb) { 1479 err = -ENOMEM; 1480 break; 1481 } 1482 1483 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1484 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1485 } 1486 1487 len = min_t(uint, hci_skb_expect(skb), count); 1488 skb_put_data(skb, buffer, len); 1489 1490 count -= len; 1491 buffer += len; 1492 hci_skb_expect(skb) -= len; 1493 1494 if (skb->len == HCI_ACL_HDR_SIZE) { 1495 /* Complete ACL header */ 1496 hci_skb_expect(skb) = hci_acl_dlen(skb); 1497 1498 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1499 kfree_skb(skb); 1500 skb = NULL; 1501 1502 err = -EILSEQ; 1503 break; 1504 } 1505 } 1506 1507 if (!hci_skb_expect(skb)) { 1508 /* Complete frame */ 1509 btusb_recv_acl(data->hdev, skb); 1510 skb = NULL; 1511 } 1512 } 1513 1514 data->acl_skb = skb; 1515 spin_unlock_irqrestore(&data->rxlock, flags); 1516 1517 return err; 1518 } 1519 1520 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1521 struct hci_sco_hdr *hdr) 1522 { 1523 __u16 handle; 1524 1525 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1526 // Can't validate, userspace controls everything. 1527 return true; 1528 1529 /* 1530 * USB isochronous transfers are not designed to be reliable and may 1531 * lose fragments. When this happens, the next first fragment 1532 * encountered might actually be a continuation fragment. 1533 * Validate the handle to detect it and drop it, or else the upper 1534 * layer will get garbage for a while. 1535 */ 1536 1537 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1538 1539 switch (hci_conn_lookup_type(hdev, handle)) { 1540 case SCO_LINK: 1541 case ESCO_LINK: 1542 return true; 1543 default: 1544 return false; 1545 } 1546 } 1547 1548 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1549 { 1550 struct sk_buff *skb; 1551 unsigned long flags; 1552 int err = 0; 1553 1554 spin_lock_irqsave(&data->rxlock, flags); 1555 skb = data->sco_skb; 1556 1557 while (count) { 1558 int len; 1559 1560 if (!skb) { 1561 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1562 if (!skb) { 1563 err = -ENOMEM; 1564 break; 1565 } 1566 1567 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1568 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1569 } 1570 1571 len = min_t(uint, hci_skb_expect(skb), count); 1572 skb_put_data(skb, buffer, len); 1573 1574 count -= len; 1575 buffer += len; 1576 hci_skb_expect(skb) -= len; 1577 1578 if (skb->len == HCI_SCO_HDR_SIZE) { 1579 /* Complete SCO header */ 1580 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1581 1582 hci_skb_expect(skb) = hdr->dlen; 1583 1584 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1585 !btusb_validate_sco_handle(data->hdev, hdr)) { 1586 kfree_skb(skb); 1587 skb = NULL; 1588 1589 err = -EILSEQ; 1590 break; 1591 } 1592 } 1593 1594 if (!hci_skb_expect(skb)) { 1595 /* Complete frame */ 1596 hci_recv_frame(data->hdev, skb); 1597 skb = NULL; 1598 } 1599 } 1600 1601 data->sco_skb = skb; 1602 spin_unlock_irqrestore(&data->rxlock, flags); 1603 1604 return err; 1605 } 1606 1607 static void btusb_intr_complete(struct urb *urb) 1608 { 1609 struct hci_dev *hdev = urb->context; 1610 struct btusb_data *data = hci_get_drvdata(hdev); 1611 int err; 1612 1613 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1614 urb->actual_length); 1615 1616 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1617 return; 1618 1619 if (urb->status == 0) { 1620 hdev->stat.byte_rx += urb->actual_length; 1621 1622 if (data->recv_intr(data, urb->transfer_buffer, 1623 urb->actual_length) < 0) { 1624 bt_dev_err(hdev, "corrupted event packet"); 1625 hdev->stat.err_rx++; 1626 } 1627 } else if (urb->status == -ENOENT) { 1628 /* Avoid suspend failed when usb_kill_urb */ 1629 return; 1630 } 1631 1632 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1633 return; 1634 1635 usb_mark_last_busy(data->udev); 1636 usb_anchor_urb(urb, &data->intr_anchor); 1637 1638 err = usb_submit_urb(urb, GFP_ATOMIC); 1639 if (err < 0) { 1640 /* -EPERM: urb is being killed; 1641 * -ENODEV: device got disconnected 1642 */ 1643 if (err != -EPERM && err != -ENODEV) 1644 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1645 urb, -err); 1646 if (err != -EPERM) 1647 hci_cmd_sync_cancel(hdev, -err); 1648 usb_unanchor_urb(urb); 1649 } 1650 } 1651 1652 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1653 { 1654 struct btusb_data *data = hci_get_drvdata(hdev); 1655 struct urb *urb; 1656 unsigned char *buf; 1657 unsigned int pipe; 1658 int err, size; 1659 1660 BT_DBG("%s", hdev->name); 1661 1662 if (!data->intr_ep) 1663 return -ENODEV; 1664 1665 urb = usb_alloc_urb(0, mem_flags); 1666 if (!urb) 1667 return -ENOMEM; 1668 1669 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 && 1670 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001) 1671 /* Fake CSR devices don't seem to support sort-transter */ 1672 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1673 else 1674 /* Use maximum HCI Event size so the USB stack handles 1675 * ZPL/short-transfer automatically. 1676 */ 1677 size = HCI_MAX_EVENT_SIZE; 1678 1679 buf = kmalloc(size, mem_flags); 1680 if (!buf) { 1681 usb_free_urb(urb); 1682 return -ENOMEM; 1683 } 1684 1685 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1686 1687 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1688 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1689 1690 urb->transfer_flags |= URB_FREE_BUFFER; 1691 1692 usb_anchor_urb(urb, &data->intr_anchor); 1693 1694 err = usb_submit_urb(urb, mem_flags); 1695 if (err < 0) { 1696 if (err != -EPERM && err != -ENODEV) 1697 bt_dev_err(hdev, "urb %p submission failed (%d)", 1698 urb, -err); 1699 if (err != -EPERM) 1700 hci_cmd_sync_cancel(hdev, -err); 1701 usb_unanchor_urb(urb); 1702 } 1703 1704 /* Only initialize intr_interval if URB poll sync is enabled */ 1705 if (!data->poll_sync) 1706 goto done; 1707 1708 /* The units are frames (milliseconds) for full and low speed devices, 1709 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1710 * devices. 1711 * 1712 * This is done once on open/resume so it shouldn't change even if 1713 * force_poll_sync changes. 1714 */ 1715 switch (urb->dev->speed) { 1716 case USB_SPEED_SUPER_PLUS: 1717 case USB_SPEED_SUPER: /* units are 125us */ 1718 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1719 break; 1720 default: 1721 data->intr_interval = msecs_to_jiffies(urb->interval); 1722 break; 1723 } 1724 1725 done: 1726 usb_free_urb(urb); 1727 1728 return err; 1729 } 1730 1731 static void btusb_bulk_complete(struct urb *urb) 1732 { 1733 struct hci_dev *hdev = urb->context; 1734 struct btusb_data *data = hci_get_drvdata(hdev); 1735 int err; 1736 1737 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1738 urb->actual_length); 1739 1740 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1741 return; 1742 1743 if (urb->status == 0) { 1744 hdev->stat.byte_rx += urb->actual_length; 1745 1746 if (data->recv_bulk(data, urb->transfer_buffer, 1747 urb->actual_length) < 0) { 1748 bt_dev_err(hdev, "corrupted ACL packet"); 1749 hdev->stat.err_rx++; 1750 } 1751 } else if (urb->status == -ENOENT) { 1752 /* Avoid suspend failed when usb_kill_urb */ 1753 return; 1754 } 1755 1756 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1757 return; 1758 1759 usb_anchor_urb(urb, &data->bulk_anchor); 1760 usb_mark_last_busy(data->udev); 1761 1762 err = usb_submit_urb(urb, GFP_ATOMIC); 1763 if (err < 0) { 1764 /* -EPERM: urb is being killed; 1765 * -ENODEV: device got disconnected 1766 */ 1767 if (err != -EPERM && err != -ENODEV) 1768 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1769 urb, -err); 1770 usb_unanchor_urb(urb); 1771 } 1772 } 1773 1774 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1775 { 1776 struct btusb_data *data = hci_get_drvdata(hdev); 1777 struct urb *urb; 1778 unsigned char *buf; 1779 unsigned int pipe; 1780 int err, size = HCI_MAX_FRAME_SIZE; 1781 1782 BT_DBG("%s", hdev->name); 1783 1784 if (!data->bulk_rx_ep) 1785 return -ENODEV; 1786 1787 urb = usb_alloc_urb(0, mem_flags); 1788 if (!urb) 1789 return -ENOMEM; 1790 1791 buf = kmalloc(size, mem_flags); 1792 if (!buf) { 1793 usb_free_urb(urb); 1794 return -ENOMEM; 1795 } 1796 1797 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1798 1799 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1800 btusb_bulk_complete, hdev); 1801 1802 urb->transfer_flags |= URB_FREE_BUFFER; 1803 1804 usb_mark_last_busy(data->udev); 1805 usb_anchor_urb(urb, &data->bulk_anchor); 1806 1807 err = usb_submit_urb(urb, mem_flags); 1808 if (err < 0) { 1809 if (err != -EPERM && err != -ENODEV) 1810 bt_dev_err(hdev, "urb %p submission failed (%d)", 1811 urb, -err); 1812 usb_unanchor_urb(urb); 1813 } 1814 1815 usb_free_urb(urb); 1816 1817 return err; 1818 } 1819 1820 static void btusb_isoc_complete(struct urb *urb) 1821 { 1822 struct hci_dev *hdev = urb->context; 1823 struct btusb_data *data = hci_get_drvdata(hdev); 1824 int i, err; 1825 1826 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1827 urb->actual_length); 1828 1829 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1830 return; 1831 1832 if (urb->status == 0) { 1833 for (i = 0; i < urb->number_of_packets; i++) { 1834 unsigned int offset = urb->iso_frame_desc[i].offset; 1835 unsigned int length = urb->iso_frame_desc[i].actual_length; 1836 1837 if (urb->iso_frame_desc[i].status) 1838 continue; 1839 1840 hdev->stat.byte_rx += length; 1841 1842 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1843 length) < 0) { 1844 bt_dev_err(hdev, "corrupted SCO packet"); 1845 hdev->stat.err_rx++; 1846 } 1847 } 1848 } else if (urb->status == -ENOENT) { 1849 /* Avoid suspend failed when usb_kill_urb */ 1850 return; 1851 } 1852 1853 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1854 return; 1855 1856 usb_anchor_urb(urb, &data->isoc_anchor); 1857 1858 err = usb_submit_urb(urb, GFP_ATOMIC); 1859 if (err < 0) { 1860 /* -EPERM: urb is being killed; 1861 * -ENODEV: device got disconnected 1862 */ 1863 if (err != -EPERM && err != -ENODEV) 1864 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1865 urb, -err); 1866 usb_unanchor_urb(urb); 1867 } 1868 } 1869 1870 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1871 int mtu, struct btusb_data *data) 1872 { 1873 int i = 0, offset = 0; 1874 unsigned int interval; 1875 1876 BT_DBG("len %d mtu %d", len, mtu); 1877 1878 /* For mSBC ALT 6 settings some chips need to transmit the data 1879 * continuously without the zero length of USB packets. 1880 */ 1881 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1882 goto ignore_usb_alt6_packet_flow; 1883 1884 /* For mSBC ALT 6 setting the host will send the packet at continuous 1885 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1886 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1887 * To maintain the rate we send 63bytes of usb packets alternatively for 1888 * 7ms and 8ms to maintain the rate as 7.5ms. 1889 */ 1890 if (data->usb_alt6_packet_flow) { 1891 interval = 7; 1892 data->usb_alt6_packet_flow = false; 1893 } else { 1894 interval = 6; 1895 data->usb_alt6_packet_flow = true; 1896 } 1897 1898 for (i = 0; i < interval; i++) { 1899 urb->iso_frame_desc[i].offset = offset; 1900 urb->iso_frame_desc[i].length = offset; 1901 } 1902 1903 ignore_usb_alt6_packet_flow: 1904 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1905 urb->iso_frame_desc[i].offset = offset; 1906 urb->iso_frame_desc[i].length = len; 1907 i++; 1908 } 1909 1910 urb->number_of_packets = i; 1911 } 1912 1913 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1914 { 1915 int i, offset = 0; 1916 1917 BT_DBG("len %d mtu %d", len, mtu); 1918 1919 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1920 i++, offset += mtu, len -= mtu) { 1921 urb->iso_frame_desc[i].offset = offset; 1922 urb->iso_frame_desc[i].length = mtu; 1923 } 1924 1925 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1926 urb->iso_frame_desc[i].offset = offset; 1927 urb->iso_frame_desc[i].length = len; 1928 i++; 1929 } 1930 1931 urb->number_of_packets = i; 1932 } 1933 1934 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1935 { 1936 struct btusb_data *data = hci_get_drvdata(hdev); 1937 struct urb *urb; 1938 unsigned char *buf; 1939 unsigned int pipe; 1940 int err, size; 1941 1942 BT_DBG("%s", hdev->name); 1943 1944 if (!data->isoc_rx_ep) 1945 return -ENODEV; 1946 1947 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1948 if (!urb) 1949 return -ENOMEM; 1950 1951 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1952 BTUSB_MAX_ISOC_FRAMES; 1953 1954 buf = kmalloc(size, mem_flags); 1955 if (!buf) { 1956 usb_free_urb(urb); 1957 return -ENOMEM; 1958 } 1959 1960 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1961 1962 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1963 hdev, data->isoc_rx_ep->bInterval); 1964 1965 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1966 1967 __fill_isoc_descriptor(urb, size, 1968 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1969 1970 usb_anchor_urb(urb, &data->isoc_anchor); 1971 1972 err = usb_submit_urb(urb, mem_flags); 1973 if (err < 0) { 1974 if (err != -EPERM && err != -ENODEV) 1975 bt_dev_err(hdev, "urb %p submission failed (%d)", 1976 urb, -err); 1977 usb_unanchor_urb(urb); 1978 } 1979 1980 usb_free_urb(urb); 1981 1982 return err; 1983 } 1984 1985 static void btusb_diag_complete(struct urb *urb) 1986 { 1987 struct hci_dev *hdev = urb->context; 1988 struct btusb_data *data = hci_get_drvdata(hdev); 1989 int err; 1990 1991 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1992 urb->actual_length); 1993 1994 if (urb->status == 0) { 1995 struct sk_buff *skb; 1996 1997 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1998 if (skb) { 1999 skb_put_data(skb, urb->transfer_buffer, 2000 urb->actual_length); 2001 hci_recv_diag(hdev, skb); 2002 } 2003 } else if (urb->status == -ENOENT) { 2004 /* Avoid suspend failed when usb_kill_urb */ 2005 return; 2006 } 2007 2008 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 2009 return; 2010 2011 usb_anchor_urb(urb, &data->diag_anchor); 2012 usb_mark_last_busy(data->udev); 2013 2014 err = usb_submit_urb(urb, GFP_ATOMIC); 2015 if (err < 0) { 2016 /* -EPERM: urb is being killed; 2017 * -ENODEV: device got disconnected 2018 */ 2019 if (err != -EPERM && err != -ENODEV) 2020 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2021 urb, -err); 2022 usb_unanchor_urb(urb); 2023 } 2024 } 2025 2026 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 2027 { 2028 struct btusb_data *data = hci_get_drvdata(hdev); 2029 struct urb *urb; 2030 unsigned char *buf; 2031 unsigned int pipe; 2032 int err, size = HCI_MAX_FRAME_SIZE; 2033 2034 BT_DBG("%s", hdev->name); 2035 2036 if (!data->diag_rx_ep) 2037 return -ENODEV; 2038 2039 urb = usb_alloc_urb(0, mem_flags); 2040 if (!urb) 2041 return -ENOMEM; 2042 2043 buf = kmalloc(size, mem_flags); 2044 if (!buf) { 2045 usb_free_urb(urb); 2046 return -ENOMEM; 2047 } 2048 2049 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 2050 2051 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 2052 btusb_diag_complete, hdev); 2053 2054 urb->transfer_flags |= URB_FREE_BUFFER; 2055 2056 usb_mark_last_busy(data->udev); 2057 usb_anchor_urb(urb, &data->diag_anchor); 2058 2059 err = usb_submit_urb(urb, mem_flags); 2060 if (err < 0) { 2061 if (err != -EPERM && err != -ENODEV) 2062 bt_dev_err(hdev, "urb %p submission failed (%d)", 2063 urb, -err); 2064 usb_unanchor_urb(urb); 2065 } 2066 2067 usb_free_urb(urb); 2068 2069 return err; 2070 } 2071 2072 static void btusb_tx_complete(struct urb *urb) 2073 { 2074 struct sk_buff *skb = urb->context; 2075 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 2076 struct btusb_data *data = hci_get_drvdata(hdev); 2077 unsigned long flags; 2078 2079 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 2080 urb->actual_length); 2081 2082 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2083 goto done; 2084 2085 if (!urb->status) { 2086 hdev->stat.byte_tx += urb->transfer_buffer_length; 2087 } else { 2088 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 2089 hci_cmd_sync_cancel(hdev, -urb->status); 2090 hdev->stat.err_tx++; 2091 } 2092 2093 done: 2094 spin_lock_irqsave(&data->txlock, flags); 2095 data->tx_in_flight--; 2096 spin_unlock_irqrestore(&data->txlock, flags); 2097 2098 kfree(urb->setup_packet); 2099 2100 kfree_skb(skb); 2101 } 2102 2103 static void btusb_isoc_tx_complete(struct urb *urb) 2104 { 2105 struct sk_buff *skb = urb->context; 2106 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 2107 2108 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 2109 urb->actual_length); 2110 2111 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2112 goto done; 2113 2114 if (!urb->status) 2115 hdev->stat.byte_tx += urb->transfer_buffer_length; 2116 else 2117 hdev->stat.err_tx++; 2118 2119 done: 2120 kfree(urb->setup_packet); 2121 2122 kfree_skb(skb); 2123 } 2124 2125 static int btusb_open(struct hci_dev *hdev) 2126 { 2127 struct btusb_data *data = hci_get_drvdata(hdev); 2128 int err; 2129 2130 BT_DBG("%s", hdev->name); 2131 2132 err = usb_autopm_get_interface(data->intf); 2133 if (err < 0) 2134 return err; 2135 2136 /* Patching USB firmware files prior to starting any URBs of HCI path 2137 * It is more safe to use USB bulk channel for downloading USB patch 2138 */ 2139 if (data->setup_on_usb) { 2140 err = data->setup_on_usb(hdev); 2141 if (err < 0) 2142 goto setup_fail; 2143 } 2144 2145 data->intf->needs_remote_wakeup = 1; 2146 2147 if (data->proto == BTUSB_PROTO_LEGACY) { 2148 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 2149 goto done; 2150 2151 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 2152 if (err < 0) 2153 goto failed; 2154 } 2155 2156 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2157 if (err < 0) { 2158 usb_kill_anchored_urbs(&data->intr_anchor); 2159 goto failed; 2160 } 2161 2162 set_bit(BTUSB_BULK_RUNNING, &data->flags); 2163 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 2164 2165 if (data->diag) { 2166 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 2167 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 2168 } 2169 2170 done: 2171 usb_autopm_put_interface(data->intf); 2172 return 0; 2173 2174 failed: 2175 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2176 setup_fail: 2177 usb_autopm_put_interface(data->intf); 2178 return err; 2179 } 2180 2181 static void btusb_stop_traffic(struct btusb_data *data) 2182 { 2183 usb_kill_anchored_urbs(&data->intr_anchor); 2184 usb_kill_anchored_urbs(&data->bulk_anchor); 2185 usb_kill_anchored_urbs(&data->isoc_anchor); 2186 usb_kill_anchored_urbs(&data->diag_anchor); 2187 usb_kill_anchored_urbs(&data->ctrl_anchor); 2188 } 2189 2190 static void btusb_prepare_reset(struct hci_dev *hdev) 2191 { 2192 struct btusb_data *data = hci_get_drvdata(hdev); 2193 2194 btusb_stop_traffic(data); 2195 usb_kill_anchored_urbs(&data->tx_anchor); 2196 } 2197 2198 static int btusb_close(struct hci_dev *hdev) 2199 { 2200 struct btusb_data *data = hci_get_drvdata(hdev); 2201 int err; 2202 2203 BT_DBG("%s", hdev->name); 2204 2205 cancel_work_sync(&data->work); 2206 cancel_work_sync(&data->waker); 2207 2208 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2209 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 2210 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2211 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 2212 2213 btusb_stop_traffic(data); 2214 2215 /* rx_work must only be canceled once the URBs that can rearm it are 2216 * gone, and it must be canceled synchronously since btusb_disconnect() 2217 * frees the btusb_data it dereferences right after hci_unregister_dev(). 2218 */ 2219 cancel_delayed_work_sync(&data->rx_work); 2220 2221 skb_queue_purge(&data->acl_q); 2222 2223 btusb_free_frags(data); 2224 2225 err = usb_autopm_get_interface(data->intf); 2226 if (err < 0) 2227 goto failed; 2228 2229 data->intf->needs_remote_wakeup = 0; 2230 2231 /* Enable remote wake up for auto-suspend */ 2232 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 2233 data->intf->needs_remote_wakeup = 1; 2234 2235 usb_autopm_put_interface(data->intf); 2236 2237 failed: 2238 usb_scuttle_anchored_urbs(&data->deferred); 2239 return 0; 2240 } 2241 2242 static int btusb_flush(struct hci_dev *hdev) 2243 { 2244 struct btusb_data *data = hci_get_drvdata(hdev); 2245 2246 BT_DBG("%s", hdev->name); 2247 2248 cancel_delayed_work_sync(&data->rx_work); 2249 2250 skb_queue_purge(&data->acl_q); 2251 2252 usb_kill_anchored_urbs(&data->tx_anchor); 2253 btusb_free_frags(data); 2254 2255 return 0; 2256 } 2257 2258 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 2259 { 2260 struct btusb_data *data = hci_get_drvdata(hdev); 2261 struct urb *urb; 2262 unsigned int pipe; 2263 2264 if (!data->bulk_tx_ep) 2265 return ERR_PTR(-ENODEV); 2266 2267 if (data->proto == BTUSB_PROTO_H4) { 2268 /* The frame type is prepended in place, so the buffer must not 2269 * be shared with anyone else. 2270 */ 2271 if (skb_cow_head(skb, 1)) 2272 return ERR_PTR(-ENOMEM); 2273 } 2274 2275 urb = usb_alloc_urb(0, GFP_KERNEL); 2276 if (!urb) 2277 return ERR_PTR(-ENOMEM); 2278 2279 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 2280 2281 if (data->proto == BTUSB_PROTO_H4) { 2282 /* Prepend skb with frame type */ 2283 memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1); 2284 } 2285 2286 usb_fill_bulk_urb(urb, data->udev, pipe, 2287 skb->data, skb->len, btusb_tx_complete, skb); 2288 2289 skb->dev = (void *)hdev; 2290 2291 return urb; 2292 } 2293 2294 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 2295 { 2296 struct btusb_data *data = hci_get_drvdata(hdev); 2297 struct usb_ctrlrequest *dr; 2298 struct urb *urb; 2299 unsigned int pipe; 2300 2301 if (data->proto == BTUSB_PROTO_H4) 2302 return alloc_bulk_urb(hdev, skb); 2303 2304 urb = usb_alloc_urb(0, GFP_KERNEL); 2305 if (!urb) 2306 return ERR_PTR(-ENOMEM); 2307 2308 dr = kmalloc_obj(*dr); 2309 if (!dr) { 2310 usb_free_urb(urb); 2311 return ERR_PTR(-ENOMEM); 2312 } 2313 2314 dr->bRequestType = data->cmdreq_type; 2315 dr->bRequest = data->cmdreq; 2316 dr->wIndex = 0; 2317 dr->wValue = 0; 2318 dr->wLength = __cpu_to_le16(skb->len); 2319 2320 pipe = usb_sndctrlpipe(data->udev, 0x00); 2321 2322 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2323 skb->data, skb->len, btusb_tx_complete, skb); 2324 2325 skb->dev = (void *)hdev; 2326 2327 return urb; 2328 } 2329 2330 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 2331 { 2332 struct btusb_data *data = hci_get_drvdata(hdev); 2333 struct urb *urb; 2334 unsigned int pipe; 2335 2336 if (data->proto == BTUSB_PROTO_H4) 2337 return alloc_bulk_urb(hdev, skb); 2338 2339 if (!data->isoc_tx_ep) 2340 return ERR_PTR(-ENODEV); 2341 2342 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 2343 if (!urb) 2344 return ERR_PTR(-ENOMEM); 2345 2346 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 2347 2348 usb_fill_int_urb(urb, data->udev, pipe, 2349 skb->data, skb->len, btusb_isoc_tx_complete, 2350 skb, data->isoc_tx_ep->bInterval); 2351 2352 urb->transfer_flags = URB_ISO_ASAP; 2353 2354 if (data->isoc_altsetting == 6) 2355 __fill_isoc_descriptor_msbc(urb, skb->len, 2356 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 2357 data); 2358 else 2359 __fill_isoc_descriptor(urb, skb->len, 2360 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 2361 skb->dev = (void *)hdev; 2362 2363 return urb; 2364 } 2365 2366 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 2367 { 2368 struct btusb_data *data = hci_get_drvdata(hdev); 2369 int err; 2370 2371 usb_anchor_urb(urb, &data->tx_anchor); 2372 2373 err = usb_submit_urb(urb, GFP_KERNEL); 2374 if (err < 0) { 2375 if (err != -EPERM && err != -ENODEV) 2376 bt_dev_err(hdev, "urb %p submission failed (%d)", 2377 urb, -err); 2378 kfree(urb->setup_packet); 2379 usb_unanchor_urb(urb); 2380 } else { 2381 usb_mark_last_busy(data->udev); 2382 } 2383 2384 usb_free_urb(urb); 2385 return err; 2386 } 2387 2388 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 2389 { 2390 struct btusb_data *data = hci_get_drvdata(hdev); 2391 unsigned long flags; 2392 bool suspending; 2393 2394 spin_lock_irqsave(&data->txlock, flags); 2395 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 2396 if (!suspending) 2397 data->tx_in_flight++; 2398 spin_unlock_irqrestore(&data->txlock, flags); 2399 2400 if (!suspending) 2401 return submit_tx_urb(hdev, urb); 2402 2403 usb_anchor_urb(urb, &data->deferred); 2404 schedule_work(&data->waker); 2405 2406 usb_free_urb(urb); 2407 return 0; 2408 } 2409 2410 static int submit_sco_urb(struct hci_dev *hdev, struct urb *urb) 2411 { 2412 struct btusb_data *data = hci_get_drvdata(hdev); 2413 2414 /* In H:4 mode SCO frames are carried over the bulk endpoint and 2415 * complete via btusb_tx_complete(), which decrements tx_in_flight, so 2416 * they have to be accounted for like any other bulk transfer. 2417 * Isochronous transfers use btusb_isoc_tx_complete() instead, which 2418 * does not, so they must not be counted. 2419 */ 2420 if (data->proto == BTUSB_PROTO_H4) 2421 return submit_or_queue_tx_urb(hdev, urb); 2422 2423 return submit_tx_urb(hdev, urb); 2424 } 2425 2426 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 2427 { 2428 struct urb *urb; 2429 2430 BT_DBG("%s", hdev->name); 2431 2432 switch (hci_skb_pkt_type(skb)) { 2433 case HCI_COMMAND_PKT: 2434 urb = alloc_ctrl_urb(hdev, skb); 2435 if (IS_ERR(urb)) 2436 return PTR_ERR(urb); 2437 2438 hdev->stat.cmd_tx++; 2439 return submit_or_queue_tx_urb(hdev, urb); 2440 2441 case HCI_ACLDATA_PKT: 2442 urb = alloc_bulk_urb(hdev, skb); 2443 if (IS_ERR(urb)) 2444 return PTR_ERR(urb); 2445 2446 hdev->stat.acl_tx++; 2447 return submit_or_queue_tx_urb(hdev, urb); 2448 2449 case HCI_SCODATA_PKT: 2450 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2451 hci_conn_num(hdev, SCO_LINK) < 1) 2452 return -ENODEV; 2453 2454 urb = alloc_isoc_urb(hdev, skb); 2455 if (IS_ERR(urb)) 2456 return PTR_ERR(urb); 2457 2458 hdev->stat.sco_tx++; 2459 return submit_sco_urb(hdev, urb); 2460 2461 case HCI_ISODATA_PKT: 2462 urb = alloc_bulk_urb(hdev, skb); 2463 if (IS_ERR(urb)) 2464 return PTR_ERR(urb); 2465 2466 return submit_or_queue_tx_urb(hdev, urb); 2467 } 2468 2469 return -EILSEQ; 2470 } 2471 2472 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2473 { 2474 struct btusb_data *data = hci_get_drvdata(hdev); 2475 2476 BT_DBG("%s evt %d", hdev->name, evt); 2477 2478 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2479 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2480 data->air_mode = evt; 2481 schedule_work(&data->work); 2482 } 2483 } 2484 2485 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2486 { 2487 struct btusb_data *data = hci_get_drvdata(hdev); 2488 struct usb_interface *intf = data->isoc; 2489 struct usb_endpoint_descriptor *ep_desc; 2490 int i, err; 2491 2492 if (!data->isoc) 2493 return -ENODEV; 2494 2495 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2496 if (err < 0) { 2497 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2498 return err; 2499 } 2500 2501 data->isoc_altsetting = altsetting; 2502 2503 data->isoc_tx_ep = NULL; 2504 data->isoc_rx_ep = NULL; 2505 2506 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2507 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2508 2509 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2510 data->isoc_tx_ep = ep_desc; 2511 continue; 2512 } 2513 2514 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2515 data->isoc_rx_ep = ep_desc; 2516 continue; 2517 } 2518 } 2519 2520 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2521 bt_dev_err(hdev, "invalid SCO descriptors"); 2522 return -ENODEV; 2523 } 2524 2525 return 0; 2526 } 2527 2528 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2529 { 2530 struct btusb_data *data = hci_get_drvdata(hdev); 2531 int err; 2532 2533 if (data->isoc_altsetting != new_alts) { 2534 unsigned long flags; 2535 2536 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2537 usb_kill_anchored_urbs(&data->isoc_anchor); 2538 2539 /* When isochronous alternate setting needs to be 2540 * changed, because SCO connection has been added 2541 * or removed, a packet fragment may be left in the 2542 * reassembling state. This could lead to wrongly 2543 * assembled fragments. 2544 * 2545 * Clear outstanding fragment when selecting a new 2546 * alternate setting. 2547 */ 2548 spin_lock_irqsave(&data->rxlock, flags); 2549 dev_kfree_skb_irq(data->sco_skb); 2550 data->sco_skb = NULL; 2551 spin_unlock_irqrestore(&data->rxlock, flags); 2552 2553 err = __set_isoc_interface(hdev, new_alts); 2554 if (err < 0) 2555 return err; 2556 } 2557 2558 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2559 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2560 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2561 else 2562 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2563 } 2564 2565 return 0; 2566 } 2567 2568 static struct usb_host_interface * 2569 btusb_find_altsetting(struct usb_interface *intf, int alt) 2570 { 2571 int i; 2572 2573 BT_DBG("Looking for Alt no :%d", alt); 2574 2575 if (!intf) 2576 return NULL; 2577 2578 for (i = 0; i < intf->num_altsetting; i++) { 2579 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2580 return &intf->altsetting[i]; 2581 } 2582 2583 return NULL; 2584 } 2585 2586 static void btusb_work(struct work_struct *work) 2587 { 2588 struct btusb_data *data = container_of(work, struct btusb_data, work); 2589 struct hci_dev *hdev = data->hdev; 2590 int new_alts = 0; 2591 int err; 2592 2593 /* In H:4 mode SCO/ISO data is carried over the bulk endpoints, so 2594 * there is no isochronous interface to resume or to switch alternate 2595 * settings on. 2596 */ 2597 if (data->proto == BTUSB_PROTO_H4) 2598 return; 2599 2600 if (data->sco_num > 0) { 2601 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2602 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2603 if (err < 0) { 2604 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2605 usb_kill_anchored_urbs(&data->isoc_anchor); 2606 return; 2607 } 2608 2609 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2610 } 2611 2612 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2613 if (hdev->voice_setting & 0x0020) { 2614 static const int alts[3] = { 2, 4, 5 }; 2615 unsigned int sco_idx; 2616 2617 sco_idx = min_t(unsigned int, data->sco_num - 1, 2618 ARRAY_SIZE(alts) - 1); 2619 new_alts = alts[sco_idx]; 2620 } else { 2621 new_alts = data->sco_num; 2622 } 2623 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2624 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2625 * many adapters do not support it. Alt 1 appears to 2626 * work for all adapters that do not have alt 6, and 2627 * which work with WBS at all. Some devices prefer 2628 * alt 3 (HCI payload >= 60 Bytes let air packet 2629 * data satisfy 60 bytes), requiring 2630 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2631 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2632 */ 2633 if (btusb_find_altsetting(data->isoc, 6)) 2634 new_alts = 6; 2635 else if (btusb_find_altsetting(data->isoc, 3) && 2636 hdev->sco_mtu >= 72 && 2637 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2638 new_alts = 3; 2639 else 2640 new_alts = 1; 2641 } 2642 2643 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2644 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2645 } else { 2646 usb_kill_anchored_urbs(&data->isoc_anchor); 2647 2648 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2649 __set_isoc_interface(hdev, 0); 2650 2651 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2652 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2653 } 2654 } 2655 2656 static void btusb_waker(struct work_struct *work) 2657 { 2658 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2659 int err; 2660 2661 err = usb_autopm_get_interface(data->intf); 2662 if (err < 0) 2663 return; 2664 2665 usb_autopm_put_interface(data->intf); 2666 } 2667 2668 static void btusb_rx_work(struct work_struct *work) 2669 { 2670 struct btusb_data *data = container_of(work, struct btusb_data, 2671 rx_work.work); 2672 struct sk_buff *skb; 2673 2674 /* Dequeue ACL data received during the interval */ 2675 while ((skb = skb_dequeue(&data->acl_q))) 2676 data->recv_acl(data->hdev, skb); 2677 } 2678 2679 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2680 { 2681 struct sk_buff *skb; 2682 u8 val = 0x00; 2683 2684 BT_DBG("%s", hdev->name); 2685 2686 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2687 if (IS_ERR(skb)) 2688 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2689 else 2690 kfree_skb(skb); 2691 2692 return 0; 2693 } 2694 2695 static int btusb_setup_csr(struct hci_dev *hdev) 2696 { 2697 struct btusb_data *data = hci_get_drvdata(hdev); 2698 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2699 struct hci_rp_read_local_version *rp; 2700 struct sk_buff *skb; 2701 bool is_fake = false; 2702 int ret; 2703 2704 BT_DBG("%s", hdev->name); 2705 2706 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2707 HCI_INIT_TIMEOUT); 2708 if (IS_ERR(skb)) { 2709 int err = PTR_ERR(skb); 2710 2711 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2712 return err; 2713 } 2714 2715 rp = skb_pull_data(skb, sizeof(*rp)); 2716 if (!rp) { 2717 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2718 kfree_skb(skb); 2719 return -EIO; 2720 } 2721 2722 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2723 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2724 2725 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2726 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2727 le16_to_cpu(rp->manufacturer)); 2728 2729 /* Detect a wide host of Chinese controllers that aren't CSR. 2730 * 2731 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2732 * 2733 * The main thing they have in common is that these are really popular low-cost 2734 * options that support newer Bluetooth versions but rely on heavy VID/PID 2735 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2736 * 2737 * We detect actual CSR devices by checking that the HCI manufacturer code 2738 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2739 * HCI rev values always match. As they both store the firmware number. 2740 */ 2741 if (le16_to_cpu(rp->manufacturer) != 10 || 2742 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2743 is_fake = true; 2744 2745 /* Known legit CSR firmware build numbers and their supported BT versions: 2746 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2747 * - 1.2 (0x2) -> 0x04d9, 0x0529 2748 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2749 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2750 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2751 * 2752 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2753 * support BT 1.1 only; so it's a dead giveaway when some 2754 * third-party BT 4.0 dongle reuses it. 2755 */ 2756 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2757 rp->hci_ver > BLUETOOTH_VER_1_1) 2758 is_fake = true; 2759 2760 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2761 rp->hci_ver > BLUETOOTH_VER_1_2) 2762 is_fake = true; 2763 2764 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2765 rp->hci_ver > BLUETOOTH_VER_2_0) 2766 is_fake = true; 2767 2768 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2769 rp->hci_ver > BLUETOOTH_VER_2_1) 2770 is_fake = true; 2771 2772 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2773 rp->hci_ver > BLUETOOTH_VER_4_0) 2774 is_fake = true; 2775 2776 /* Other clones which beat all the above checks */ 2777 else if (bcdDevice == 0x0134 && 2778 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2779 rp->hci_ver == BLUETOOTH_VER_2_0) 2780 is_fake = true; 2781 2782 if (is_fake) { 2783 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2784 2785 /* Generally these clones have big discrepancies between 2786 * advertised features and what's actually supported. 2787 * Probably will need to be expanded in the future; 2788 * without these the controller will lock up. 2789 */ 2790 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 2791 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 2792 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL); 2793 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER); 2794 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING); 2795 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE); 2796 2797 /* Clear the reset quirk since this is not an actual 2798 * early Bluetooth 1.1 device from CSR. 2799 */ 2800 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 2801 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 2802 2803 /* 2804 * Special workaround for these BT 4.0 chip clones, and potentially more: 2805 * 2806 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2807 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2808 * 2809 * These controllers are really messed-up. 2810 * 2811 * 1. Their bulk RX endpoint will never report any data unless 2812 * the device was suspended at least once (yes, really). 2813 * 2. They will not wakeup when autosuspended and receiving data 2814 * on their bulk RX endpoint from e.g. a keyboard or mouse 2815 * (IOW remote-wakeup support is broken for the bulk endpoint). 2816 * 2817 * To fix 1. enable runtime-suspend, force-suspend the 2818 * HCI and then wake-it up by disabling runtime-suspend. 2819 * 2820 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2821 * will still be autosuspended when it is not open. 2822 * 2823 * -- 2824 * 2825 * Because these are widespread problems we prefer generic solutions; so 2826 * apply this initialization quirk to every controller that gets here, 2827 * it should be harmless. The alternative is to not work at all. 2828 */ 2829 pm_runtime_allow(&data->udev->dev); 2830 2831 ret = pm_runtime_suspend(&data->udev->dev); 2832 if (ret >= 0) 2833 msleep(200); 2834 else 2835 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2836 2837 pm_runtime_forbid(&data->udev->dev); 2838 2839 device_set_wakeup_capable(&data->udev->dev, false); 2840 2841 /* Re-enable autosuspend if this was requested */ 2842 if (enable_autosuspend) 2843 usb_enable_autosuspend(data->udev); 2844 } 2845 2846 kfree_skb(skb); 2847 2848 return 0; 2849 } 2850 2851 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2852 { 2853 struct sk_buff *skb; 2854 struct hci_event_hdr *hdr; 2855 struct hci_ev_cmd_complete *evt; 2856 2857 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2858 if (!skb) 2859 return -ENOMEM; 2860 2861 hdr = skb_put(skb, sizeof(*hdr)); 2862 hdr->evt = HCI_EV_CMD_COMPLETE; 2863 hdr->plen = sizeof(*evt) + 1; 2864 2865 evt = skb_put(skb, sizeof(*evt)); 2866 evt->ncmd = 0x01; 2867 evt->opcode = cpu_to_le16(opcode); 2868 2869 skb_put_u8(skb, 0x00); 2870 2871 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2872 2873 return hci_recv_frame(hdev, skb); 2874 } 2875 2876 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2877 int count) 2878 { 2879 struct hci_dev *hdev = data->hdev; 2880 2881 /* When the device is in bootloader mode, then it can send 2882 * events via the bulk endpoint. These events are treated the 2883 * same way as the ones received from the interrupt endpoint. 2884 * 2885 * In H:4 mode there is no interrupt endpoint and every frame on the 2886 * bulk endpoint carries an H:4 header, including the ones sent by the 2887 * bootloader, so the regular decoding applies. 2888 */ 2889 if (data->proto == BTUSB_PROTO_LEGACY && 2890 btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2891 return data->recv_intr(data, buffer, count); 2892 2893 return btusb_recv_bulk(data, buffer, count); 2894 } 2895 2896 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2897 { 2898 struct urb *urb; 2899 2900 BT_DBG("%s", hdev->name); 2901 2902 switch (hci_skb_pkt_type(skb)) { 2903 case HCI_COMMAND_PKT: 2904 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2905 struct hci_command_hdr *cmd = (void *)skb->data; 2906 __u16 opcode = le16_to_cpu(cmd->opcode); 2907 2908 /* When in bootloader mode and the command 0xfc09 2909 * is received, it needs to be send down the 2910 * bulk endpoint. So allocate a bulk URB instead. 2911 */ 2912 if (opcode == 0xfc09) 2913 urb = alloc_bulk_urb(hdev, skb); 2914 else 2915 urb = alloc_ctrl_urb(hdev, skb); 2916 2917 /* When the BTINTEL_HCI_OP_RESET command is issued to 2918 * boot into the operational firmware, it will actually 2919 * not send a command complete event. To keep the flow 2920 * control working inject that event here. 2921 */ 2922 if (opcode == BTINTEL_HCI_OP_RESET) 2923 inject_cmd_complete(hdev, opcode); 2924 } else { 2925 urb = alloc_ctrl_urb(hdev, skb); 2926 } 2927 if (IS_ERR(urb)) 2928 return PTR_ERR(urb); 2929 2930 hdev->stat.cmd_tx++; 2931 return submit_or_queue_tx_urb(hdev, urb); 2932 2933 case HCI_ACLDATA_PKT: 2934 urb = alloc_bulk_urb(hdev, skb); 2935 if (IS_ERR(urb)) 2936 return PTR_ERR(urb); 2937 2938 hdev->stat.acl_tx++; 2939 return submit_or_queue_tx_urb(hdev, urb); 2940 2941 case HCI_SCODATA_PKT: 2942 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && 2943 hci_conn_num(hdev, SCO_LINK) < 1) 2944 return -ENODEV; 2945 2946 urb = alloc_isoc_urb(hdev, skb); 2947 if (IS_ERR(urb)) 2948 return PTR_ERR(urb); 2949 2950 hdev->stat.sco_tx++; 2951 return submit_sco_urb(hdev, urb); 2952 2953 case HCI_ISODATA_PKT: 2954 urb = alloc_bulk_urb(hdev, skb); 2955 if (IS_ERR(urb)) 2956 return PTR_ERR(urb); 2957 2958 return submit_or_queue_tx_urb(hdev, urb); 2959 } 2960 2961 return -EILSEQ; 2962 } 2963 2964 static int btusb_setup_realtek(struct hci_dev *hdev) 2965 { 2966 struct btusb_data *data = hci_get_drvdata(hdev); 2967 int ret; 2968 2969 ret = btrtl_setup_realtek(hdev); 2970 2971 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2972 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2973 2974 return ret; 2975 } 2976 2977 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb) 2978 { 2979 if (skb->len >= HCI_EVENT_HDR_SIZE + 1 && 2980 skb->data[0] == HCI_EV_VENDOR && 2981 skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) { 2982 struct rtk_dev_coredump_hdr hdr = { 2983 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP, 2984 }; 2985 2986 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u", 2987 skb->len); 2988 2989 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len); 2990 kfree_skb(skb); 2991 2992 return 0; 2993 } 2994 2995 return hci_recv_frame(hdev, skb); 2996 } 2997 2998 static void btusb_mtk_claim_iso_intf(struct btusb_data *data) 2999 { 3000 struct btmtk_data *btmtk_data; 3001 int err; 3002 3003 if (!data->hdev) 3004 return; 3005 3006 btmtk_data = hci_get_priv(data->hdev); 3007 if (!btmtk_data) 3008 return; 3009 3010 if (!btmtk_data->isopkt_intf) { 3011 bt_dev_err(data->hdev, "Can't claim NULL iso interface"); 3012 return; 3013 } 3014 3015 /* 3016 * The function usb_driver_claim_interface() is documented to need 3017 * locks held if it's not called from a probe routine. The code here 3018 * is called from the hci_power_on workqueue, so grab the lock. 3019 */ 3020 device_lock(&btmtk_data->isopkt_intf->dev); 3021 err = usb_driver_claim_interface(&btusb_driver, 3022 btmtk_data->isopkt_intf, data); 3023 device_unlock(&btmtk_data->isopkt_intf->dev); 3024 if (err < 0) { 3025 btmtk_data->isopkt_intf = NULL; 3026 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err); 3027 return; 3028 } 3029 3030 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 3031 init_usb_anchor(&btmtk_data->isopkt_anchor); 3032 } 3033 3034 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev) 3035 { 3036 struct btmtk_data *btmtk_data; 3037 3038 if (!hdev) 3039 return; 3040 3041 btmtk_data = hci_get_priv(hdev); 3042 if (!btmtk_data) 3043 return; 3044 3045 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 3046 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); 3047 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); 3048 3049 if (btmtk_data->isopkt_skb) { 3050 dev_kfree_skb_irq(btmtk_data->isopkt_skb); 3051 btmtk_data->isopkt_skb = NULL; 3052 } 3053 3054 if (btmtk_data->isopkt_intf) { 3055 usb_set_intfdata(btmtk_data->isopkt_intf, NULL); 3056 usb_driver_release_interface(&btusb_driver, 3057 btmtk_data->isopkt_intf); 3058 btmtk_data->isopkt_intf = NULL; 3059 } 3060 } 3061 3062 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); 3063 } 3064 3065 static int btusb_mtk_disconnect(struct hci_dev *hdev) 3066 { 3067 /* This function describes the specific additional steps taken by MediaTek 3068 * when Bluetooth usb driver's resume function is called. 3069 */ 3070 btusb_mtk_release_iso_intf(hdev); 3071 3072 return 0; 3073 } 3074 3075 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) 3076 { 3077 struct btusb_data *data = hci_get_drvdata(hdev); 3078 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 3079 int err; 3080 3081 /* It's MediaTek specific bluetooth reset mechanism via USB */ 3082 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) { 3083 bt_dev_err(hdev, "last reset failed? Not resetting again"); 3084 return -EBUSY; 3085 } 3086 3087 err = usb_autopm_get_interface(data->intf); 3088 if (err < 0) { 3089 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 3090 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 3091 return err; 3092 } 3093 3094 /* Release MediaTek ISO data interface */ 3095 btusb_mtk_release_iso_intf(hdev); 3096 3097 btusb_prepare_reset(hdev); 3098 3099 /* Toggle the hard reset line. The MediaTek device is going to 3100 * yank itself off the USB and then replug. The cleanup is handled 3101 * correctly on the way out (standard USB disconnect), and the new 3102 * device is detected cleanly and bound to the driver again like 3103 * it should be. 3104 */ 3105 if (data->reset_gpio) { 3106 gpiod_set_value_cansleep(data->reset_gpio, 1); 3107 msleep(200); 3108 gpiod_set_value_cansleep(data->reset_gpio, 0); 3109 return 0; 3110 } 3111 3112 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); 3113 3114 if (test_and_set_bit(BTUSB_RESET, &data->flags)) { 3115 bt_dev_err(hdev, "last usb reset failed? Resetting again"); 3116 usb_autopm_put_interface_no_suspend(data->intf); 3117 } 3118 3119 usb_queue_reset_device(data->intf); 3120 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags); 3121 3122 return err; 3123 } 3124 3125 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3126 { 3127 struct urb *urb; 3128 3129 BT_DBG("%s", hdev->name); 3130 3131 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) { 3132 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); 3133 if (IS_ERR(urb)) 3134 return PTR_ERR(urb); 3135 3136 return submit_or_queue_tx_urb(hdev, urb); 3137 } else { 3138 return btusb_send_frame(hdev, skb); 3139 } 3140 } 3141 3142 static inline bool platform_is_ryzen(void) 3143 { 3144 #ifdef CONFIG_X86 3145 return boot_cpu_has(X86_FEATURE_ZEN); 3146 #else 3147 return false; 3148 #endif 3149 } 3150 3151 static inline bool is_direct_child_of_root_hub(struct usb_device *udev) 3152 { 3153 return udev->parent == udev->bus->root_hub; 3154 } 3155 3156 static int btusb_mtk_setup(struct hci_dev *hdev) 3157 { 3158 struct btusb_data *data = hci_get_drvdata(hdev); 3159 struct btmtk_data *btmtk_data = hci_get_priv(hdev); 3160 int err; 3161 3162 /* MediaTek WMT vendor cmd requiring below USB resources to 3163 * complete the handshake. 3164 */ 3165 btmtk_data->drv_name = btusb_driver.name; 3166 btmtk_data->intf = data->intf; 3167 btmtk_data->udev = data->udev; 3168 btmtk_data->ctrl_anchor = &data->ctrl_anchor; 3169 btmtk_data->reset_sync = btusb_mtk_reset; 3170 3171 /* Claim ISO data interface and endpoint */ 3172 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { 3173 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); 3174 btusb_mtk_claim_iso_intf(data); 3175 } 3176 3177 err = btmtk_usb_setup(hdev); 3178 if (err) 3179 return err; 3180 3181 switch (btmtk_data->dev_id) { 3182 case 0x7922: 3183 case 0x7925: 3184 /* 3185 * All reports seen to be relevant to Ryzen-based laptops. These 3186 * NICs are usually used as OEM components thanks to some sort 3187 * of reference designs. 3188 * 3189 * Their popularity on other platforms is unclear. While there 3190 * is still a chance that the quirk may exist on other 3191 * platforms, be cautious and only apply the quirk to direct 3192 * children of Ryzen platforms's root hubs for the time being. 3193 * 3194 * In most cases the root hub is on the SoC or PCH, which needs 3195 * the quirk. Unfortunately, this can't distinguish root hubs on 3196 * PCIe add-in cards. Such roughness should be acceptable, as 3197 * PCIe USB controller add-in cards are less commonly used 3198 * nowadays. On the other hand, applying the quirk doesn't hurt 3199 * any functionalities either, as the device can still be used 3200 * as a wakeup source if desired. 3201 * 3202 * Theoretically, we could retrieve the root hub's PCI vendor ID 3203 * with some hierarchy magic, but that's too intrusive... 3204 */ 3205 if (platform_is_ryzen() && is_direct_child_of_root_hub(data->udev)) 3206 set_bit(BTUSB_WAKEUP_BROKEN, &data->flags); 3207 break; 3208 } 3209 3210 return 0; 3211 } 3212 3213 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3214 { 3215 int ret; 3216 3217 ret = btmtk_usb_shutdown(hdev); 3218 3219 /* Release MediaTek iso interface after shutdown */ 3220 btusb_mtk_release_iso_intf(hdev); 3221 3222 return ret; 3223 } 3224 3225 #ifdef CONFIG_PM 3226 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3227 static int marvell_config_oob_wake(struct hci_dev *hdev) 3228 { 3229 struct sk_buff *skb; 3230 struct btusb_data *data = hci_get_drvdata(hdev); 3231 struct device *dev = &data->udev->dev; 3232 u16 pin, gap, opcode; 3233 int ret; 3234 u8 cmd[5]; 3235 3236 /* Move on if no wakeup pin specified */ 3237 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3238 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3239 return 0; 3240 3241 /* Vendor specific command to configure a GPIO as wake-up pin */ 3242 opcode = hci_opcode_pack(0x3F, 0x59); 3243 cmd[0] = opcode & 0xFF; 3244 cmd[1] = opcode >> 8; 3245 cmd[2] = 2; /* length of parameters that follow */ 3246 cmd[3] = pin; 3247 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3248 3249 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3250 if (!skb) { 3251 bt_dev_err(hdev, "%s: No memory", __func__); 3252 return -ENOMEM; 3253 } 3254 3255 skb_put_data(skb, cmd, sizeof(cmd)); 3256 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3257 3258 ret = btusb_send_frame(hdev, skb); 3259 if (ret) { 3260 bt_dev_err(hdev, "%s: configuration failed", __func__); 3261 kfree_skb(skb); 3262 return ret; 3263 } 3264 3265 return 0; 3266 } 3267 #else 3268 static inline int marvell_config_oob_wake(struct hci_dev *hdev) 3269 { 3270 return 0; 3271 } 3272 #endif 3273 3274 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3275 const bdaddr_t *bdaddr) 3276 { 3277 struct sk_buff *skb; 3278 u8 buf[8]; 3279 long ret; 3280 3281 buf[0] = 0xfe; 3282 buf[1] = sizeof(bdaddr_t); 3283 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3284 3285 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3286 if (IS_ERR(skb)) { 3287 ret = PTR_ERR(skb); 3288 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3289 ret); 3290 return ret; 3291 } 3292 kfree_skb(skb); 3293 3294 return 0; 3295 } 3296 3297 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3298 const bdaddr_t *bdaddr) 3299 { 3300 struct sk_buff *skb; 3301 u8 buf[10]; 3302 long ret; 3303 3304 buf[0] = 0x01; 3305 buf[1] = 0x01; 3306 buf[2] = 0x00; 3307 buf[3] = sizeof(bdaddr_t); 3308 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3309 3310 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3311 if (IS_ERR(skb)) { 3312 ret = PTR_ERR(skb); 3313 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3314 return ret; 3315 } 3316 kfree_skb(skb); 3317 3318 return 0; 3319 } 3320 3321 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3322 const bdaddr_t *bdaddr) 3323 { 3324 bdaddr_t bdaddr_swapped; 3325 struct sk_buff *skb; 3326 long ret; 3327 3328 baswap(&bdaddr_swapped, bdaddr); 3329 3330 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(bdaddr_swapped), 3331 &bdaddr_swapped, HCI_EV_CMD_COMPLETE, 3332 HCI_INIT_TIMEOUT); 3333 if (IS_ERR(skb)) { 3334 ret = PTR_ERR(skb); 3335 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3336 return ret; 3337 } 3338 kfree_skb(skb); 3339 3340 return 0; 3341 } 3342 3343 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3344 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3345 #define QCA_MEMDUMP_VSE_CLASS 0x01 3346 #define QCA_MEMDUMP_MSG_TYPE 0x08 3347 #define QCA_MEMDUMP_PKT_SIZE 248 3348 #define QCA_LAST_SEQUENCE_NUM 0xffff 3349 3350 struct qca_dump_hdr { 3351 u8 vse_class; 3352 u8 msg_type; 3353 __le16 seqno; 3354 u8 reserved; 3355 union { 3356 DECLARE_FLEX_ARRAY(u8, data); 3357 struct { 3358 __le32 ram_dump_size; 3359 DECLARE_FLEX_ARRAY(u8, data0); 3360 } __packed; 3361 }; 3362 } __packed; 3363 3364 3365 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3366 { 3367 char buf[128]; 3368 struct btqca_data *btqca_data = hci_get_priv(hdev); 3369 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump; 3370 3371 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3372 qca_dump_ptr->controller_id); 3373 skb_put_data(skb, buf, strlen(buf)); 3374 3375 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3376 qca_dump_ptr->fw_version); 3377 skb_put_data(skb, buf, strlen(buf)); 3378 3379 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3380 btusb_driver.name); 3381 skb_put_data(skb, buf, strlen(buf)); 3382 3383 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3384 qca_dump_ptr->id_vendor, qca_dump_ptr->id_product); 3385 skb_put_data(skb, buf, strlen(buf)); 3386 3387 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3388 hdev->lmp_subver); 3389 skb_put_data(skb, buf, strlen(buf)); 3390 } 3391 3392 static void btusb_coredump_qca(struct hci_dev *hdev) 3393 { 3394 int err; 3395 static const u8 param[] = { 0x26 }; 3396 3397 err = __hci_cmd_send(hdev, 0xfc0c, 1, param); 3398 if (err < 0) 3399 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err); 3400 } 3401 3402 /* Return: 0 on success, negative errno on failure. */ 3403 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3404 { 3405 int ret = 0; 3406 unsigned int skip = 0; 3407 u8 pkt_type; 3408 u16 seqno; 3409 u32 dump_size; 3410 3411 struct qca_dump_hdr *dump_hdr; 3412 struct btusb_data *btdata = hci_get_drvdata(hdev); 3413 struct btqca_data *btqca_data = hci_get_priv(hdev); 3414 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump; 3415 struct usb_device *udev = btdata->udev; 3416 3417 pkt_type = hci_skb_pkt_type(skb); 3418 skip = sizeof(struct hci_event_hdr); 3419 if (pkt_type == HCI_ACLDATA_PKT) 3420 skip += sizeof(struct hci_acl_hdr); 3421 3422 skb_pull(skb, skip); 3423 dump_hdr = (struct qca_dump_hdr *)skb->data; 3424 3425 seqno = le16_to_cpu(dump_hdr->seqno); 3426 if (seqno == 0) { 3427 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3428 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3429 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3430 ret = -EILSEQ; 3431 bt_dev_err(hdev, "Invalid memdump size(%u)", 3432 dump_size); 3433 goto out; 3434 } 3435 3436 ret = hci_devcd_init(hdev, dump_size); 3437 if (ret < 0) { 3438 bt_dev_err(hdev, "memdump init error(%d)", ret); 3439 goto out; 3440 } 3441 3442 qca_dump_ptr->ram_dump_size = dump_size; 3443 qca_dump_ptr->ram_dump_seqno = 0; 3444 3445 skb_pull(skb, offsetof(struct qca_dump_hdr, data0)); 3446 3447 usb_disable_autosuspend(udev); 3448 bt_dev_info(hdev, "%s memdump size(%u)\n", 3449 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3450 dump_size); 3451 } else { 3452 skb_pull(skb, offsetof(struct qca_dump_hdr, data)); 3453 } 3454 3455 if (!qca_dump_ptr->ram_dump_size) { 3456 ret = -EINVAL; 3457 bt_dev_err(hdev, "memdump is not active"); 3458 goto out; 3459 } 3460 3461 if ((seqno > qca_dump_ptr->ram_dump_seqno + 1) && seqno != QCA_LAST_SEQUENCE_NUM) { 3462 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - qca_dump_ptr->ram_dump_seqno - 1); 3463 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3464 bt_dev_err(hdev, 3465 "expected memdump seqno(%u) is not received(%u)\n", 3466 qca_dump_ptr->ram_dump_seqno, seqno); 3467 qca_dump_ptr->ram_dump_seqno = seqno; 3468 kfree_skb(skb); 3469 return ret; 3470 } 3471 3472 hci_devcd_append(hdev, skb); 3473 qca_dump_ptr->ram_dump_seqno++; 3474 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3475 bt_dev_info(hdev, 3476 "memdump done: pkts(%u), total(%u)\n", 3477 qca_dump_ptr->ram_dump_seqno, qca_dump_ptr->ram_dump_size); 3478 3479 hci_devcd_complete(hdev); 3480 goto out; 3481 } 3482 return ret; 3483 3484 out: 3485 if (qca_dump_ptr->ram_dump_size) 3486 usb_enable_autosuspend(udev); 3487 qca_dump_ptr->ram_dump_size = 0; 3488 qca_dump_ptr->ram_dump_seqno = 0; 3489 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3490 3491 if (ret < 0) 3492 kfree_skb(skb); 3493 return ret; 3494 } 3495 3496 /* Return: true if the ACL packet is a dump packet, false otherwise. */ 3497 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3498 { 3499 struct hci_event_hdr *event_hdr; 3500 struct hci_acl_hdr *acl_hdr; 3501 struct qca_dump_hdr *dump_hdr; 3502 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3503 bool is_dump = false; 3504 3505 if (!clone) 3506 return false; 3507 3508 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr)); 3509 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)) 3510 goto out; 3511 3512 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3513 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR) 3514 goto out; 3515 3516 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3517 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3518 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3519 goto out; 3520 3521 is_dump = true; 3522 out: 3523 consume_skb(clone); 3524 return is_dump; 3525 } 3526 3527 /* Return: true if the event packet is a dump packet, false otherwise. */ 3528 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb) 3529 { 3530 struct hci_event_hdr *event_hdr; 3531 struct qca_dump_hdr *dump_hdr; 3532 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); 3533 bool is_dump = false; 3534 3535 if (!clone) 3536 return false; 3537 3538 event_hdr = skb_pull_data(clone, sizeof(*event_hdr)); 3539 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR) 3540 goto out; 3541 3542 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr)); 3543 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) || 3544 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3545 goto out; 3546 3547 is_dump = true; 3548 out: 3549 consume_skb(clone); 3550 return is_dump; 3551 } 3552 3553 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3554 { 3555 if (acl_pkt_is_dump_qca(hdev, skb)) 3556 return handle_dump_pkt_qca(hdev, skb); 3557 return hci_recv_frame(hdev, skb); 3558 } 3559 3560 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3561 { 3562 if (evt_pkt_is_dump_qca(hdev, skb)) 3563 return handle_dump_pkt_qca(hdev, skb); 3564 return hci_recv_frame(hdev, skb); 3565 } 3566 3567 3568 #define QCA_DFU_PACKET_LEN 4096 3569 3570 #define QCA_GET_TARGET_VERSION 0x09 3571 #define QCA_CHECK_STATUS 0x05 3572 #define QCA_DFU_DOWNLOAD 0x01 3573 3574 #define QCA_SYSCFG_UPDATED 0x40 3575 #define QCA_PATCH_UPDATED 0x80 3576 #define QCA_DFU_TIMEOUT 3000 3577 #define QCA_FLAG_MULTI_NVM 0x80 3578 #define QCA_BT_RESET_WAIT_MS 100 3579 3580 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3581 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3582 3583 struct qca_version { 3584 __le32 rom_version; 3585 __le32 patch_version; 3586 __le32 ram_version; 3587 __u8 chip_id; 3588 __u8 platform_id; 3589 __le16 flag; 3590 __u8 reserved[4]; 3591 } __packed; 3592 3593 struct qca_rampatch_version { 3594 __le16 rom_version_high; 3595 __le16 rom_version_low; 3596 __le16 patch_version; 3597 } __packed; 3598 3599 struct qca_device_info { 3600 u32 rom_version; 3601 u8 rampatch_hdr; /* length of header in rampatch */ 3602 u8 nvm_hdr; /* length of header in NVM */ 3603 u8 ver_offset; /* offset of version structure in rampatch */ 3604 }; 3605 3606 struct qca_custom_firmware { 3607 u32 rom_version; 3608 u16 board_id; 3609 const char *subdirectory; 3610 }; 3611 3612 static const struct qca_device_info qca_devices_table[] = { 3613 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3614 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3615 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3616 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3617 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3618 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3619 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3620 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3621 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3622 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3623 }; 3624 3625 static const struct qca_custom_firmware qca_custom_btfws[] = { 3626 { 0x00130201, 0x030A, "QCA2066" }, 3627 { 0x00130201, 0x030B, "QCA2066" }, 3628 { }, 3629 }; 3630 3631 static u16 qca_extract_board_id(const struct qca_version *ver) 3632 { 3633 u16 flag = le16_to_cpu(ver->flag); 3634 u16 board_id = 0; 3635 3636 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3637 /* The board_id should be split into two bytes 3638 * The 1st byte is chip ID, and the 2nd byte is platform ID 3639 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3640 * we have several platforms, and platform IDs are continuously added 3641 * Platform ID: 3642 * 0x00 is for Mobile 3643 * 0x01 is for X86 3644 * 0x02 is for Automotive 3645 * 0x03 is for Consumer electronic 3646 */ 3647 board_id = (ver->chip_id << 8) + ver->platform_id; 3648 } 3649 3650 /* Take 0xffff as invalid board ID */ 3651 if (board_id == 0xffff) 3652 board_id = 0; 3653 3654 return board_id; 3655 } 3656 3657 static const char *qca_get_fw_subdirectory(const struct qca_version *ver) 3658 { 3659 const struct qca_custom_firmware *ptr; 3660 u32 rom_ver; 3661 u16 board_id; 3662 3663 rom_ver = le32_to_cpu(ver->rom_version); 3664 board_id = qca_extract_board_id(ver); 3665 if (!board_id) 3666 return NULL; 3667 3668 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) { 3669 if (ptr->rom_version == rom_ver && 3670 ptr->board_id == board_id) 3671 return ptr->subdirectory; 3672 } 3673 3674 return NULL; 3675 } 3676 3677 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3678 void *data, u16 size) 3679 { 3680 int err; 3681 3682 /* Found some of USB hosts have IOT issues with ours so that we should 3683 * not wait until HCI layer is ready. 3684 */ 3685 err = usb_control_msg_recv(udev, 0, request, USB_TYPE_VENDOR | USB_DIR_IN, 3686 0, 0, data, size, USB_CTRL_GET_TIMEOUT, 3687 GFP_KERNEL); 3688 if (err) 3689 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3690 3691 return err; 3692 } 3693 3694 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3695 const struct firmware *firmware, 3696 size_t hdr_size) 3697 { 3698 struct btusb_data *btdata = hci_get_drvdata(hdev); 3699 struct usb_device *udev = btdata->udev; 3700 size_t count, size, sent = 0; 3701 int pipe, len, err; 3702 u8 *buf; 3703 3704 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3705 if (!buf) 3706 return -ENOMEM; 3707 3708 count = firmware->size; 3709 3710 size = min_t(size_t, count, hdr_size); 3711 memcpy(buf, firmware->data, size); 3712 3713 /* USB patches should go down to controller through USB path 3714 * because binary format fits to go down through USB channel. 3715 * USB control path is for patching headers and USB bulk is for 3716 * patch body. 3717 */ 3718 pipe = usb_sndctrlpipe(udev, 0); 3719 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3720 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3721 if (err < 0) { 3722 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3723 goto done; 3724 } 3725 3726 sent += size; 3727 count -= size; 3728 3729 /* ep2 need time to switch from function acl to function dfu, 3730 * so we add 20ms delay here. 3731 */ 3732 msleep(20); 3733 3734 while (count) { 3735 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3736 3737 memcpy(buf, firmware->data + sent, size); 3738 3739 pipe = usb_sndbulkpipe(udev, 0x02); 3740 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3741 QCA_DFU_TIMEOUT); 3742 if (err < 0) { 3743 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3744 sent, firmware->size, err); 3745 break; 3746 } 3747 3748 if (size != len) { 3749 bt_dev_err(hdev, "Failed to get bulk buffer"); 3750 err = -EILSEQ; 3751 break; 3752 } 3753 3754 sent += size; 3755 count -= size; 3756 } 3757 3758 done: 3759 kfree(buf); 3760 return err; 3761 } 3762 3763 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3764 struct qca_version *ver, 3765 const struct qca_device_info *info) 3766 { 3767 struct qca_rampatch_version *rver; 3768 const struct firmware *fw; 3769 const char *fw_subdir; 3770 u32 ver_rom, ver_patch, rver_rom; 3771 u16 rver_rom_low, rver_rom_high, rver_patch; 3772 char fwname[80]; 3773 int err; 3774 3775 ver_rom = le32_to_cpu(ver->rom_version); 3776 ver_patch = le32_to_cpu(ver->patch_version); 3777 3778 fw_subdir = qca_get_fw_subdirectory(ver); 3779 if (fw_subdir) 3780 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin", 3781 fw_subdir, ver_rom); 3782 else 3783 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", 3784 ver_rom); 3785 3786 err = request_firmware(&fw, fwname, &hdev->dev); 3787 if (err) { 3788 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3789 fwname, err); 3790 return err; 3791 } 3792 3793 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3794 3795 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3796 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3797 rver_patch = le16_to_cpu(rver->patch_version); 3798 3799 if (ver_rom & ~0xffffU) { 3800 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3801 rver_rom = rver_rom_high << 16 | rver_rom_low; 3802 } else { 3803 rver_rom = rver_rom_low; 3804 } 3805 3806 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3807 "firmware rome 0x%x build 0x%x", 3808 rver_rom, rver_patch, ver_rom, ver_patch); 3809 3810 /* Allow rampatch when the patch version equals the firmware version. 3811 * A firmware download may be aborted by a transient USB error (e.g. 3812 * disconnect) after the controller updates version info but before 3813 * completion. 3814 * Allowing equal versions enables re-flashing during recovery. 3815 */ 3816 if (rver_rom != ver_rom || rver_patch < ver_patch) { 3817 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3818 err = -EINVAL; 3819 goto done; 3820 } 3821 3822 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3823 3824 done: 3825 release_firmware(fw); 3826 3827 return err; 3828 } 3829 3830 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3831 const struct qca_version *ver) 3832 { 3833 u32 rom_version = le32_to_cpu(ver->rom_version); 3834 const char *variant, *fw_subdir; 3835 int len; 3836 u16 board_id; 3837 3838 fw_subdir = qca_get_fw_subdirectory(ver); 3839 board_id = qca_extract_board_id(ver); 3840 3841 switch (le32_to_cpu(ver->ram_version)) { 3842 case WCN6855_2_0_RAM_VERSION_GF: 3843 case WCN6855_2_1_RAM_VERSION_GF: 3844 variant = "_gf"; 3845 break; 3846 default: 3847 variant = NULL; 3848 break; 3849 } 3850 3851 if (fw_subdir) 3852 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x", 3853 fw_subdir, rom_version); 3854 else 3855 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x", 3856 rom_version); 3857 if (variant) 3858 len += snprintf(fwname + len, max_size - len, "%s", variant); 3859 if (board_id) 3860 len += snprintf(fwname + len, max_size - len, "_%04x", board_id); 3861 len += snprintf(fwname + len, max_size - len, ".bin"); 3862 } 3863 3864 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3865 struct qca_version *ver, 3866 const struct qca_device_info *info) 3867 { 3868 const struct firmware *fw; 3869 char fwname[80]; 3870 int err; 3871 3872 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3873 3874 err = request_firmware(&fw, fwname, &hdev->dev); 3875 if (err) { 3876 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3877 fwname, err); 3878 return err; 3879 } 3880 3881 bt_dev_info(hdev, "using NVM file: %s", fwname); 3882 3883 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3884 3885 release_firmware(fw); 3886 3887 return err; 3888 } 3889 3890 /* identify the ROM version and check whether patches are needed */ 3891 static bool btusb_qca_need_patch(struct usb_device *udev) 3892 { 3893 struct qca_version ver; 3894 3895 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3896 sizeof(ver))) 3897 return false; 3898 /* only low ROM versions need patches */ 3899 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3900 } 3901 3902 static int btusb_setup_qca(struct hci_dev *hdev) 3903 { 3904 struct btusb_data *btdata = hci_get_drvdata(hdev); 3905 struct usb_device *udev = btdata->udev; 3906 const struct qca_device_info *info = NULL; 3907 struct qca_version ver; 3908 u32 ver_rom; 3909 u8 status; 3910 int i, err; 3911 3912 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3913 sizeof(ver)); 3914 if (err) 3915 return err; 3916 3917 ver_rom = le32_to_cpu(ver.rom_version); 3918 3919 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3920 if (ver_rom == qca_devices_table[i].rom_version) 3921 info = &qca_devices_table[i]; 3922 } 3923 if (!info) { 3924 /* If the rom_version is not matched in the qca_devices_table 3925 * and the high ROM version is not zero, we assume this chip no 3926 * need to load the rampatch and nvm. 3927 */ 3928 if (ver_rom & ~0xffffU) 3929 return 0; 3930 3931 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3932 return -ENODEV; 3933 } 3934 3935 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3936 sizeof(status)); 3937 if (err) 3938 return err; 3939 3940 if (!(status & QCA_PATCH_UPDATED)) { 3941 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3942 if (err < 0) 3943 return err; 3944 } 3945 3946 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3947 sizeof(ver)); 3948 if (err) 3949 return err; 3950 3951 if (btdata->match_id->driver_info & BTUSB_QCA_WCN6855) { 3952 struct btqca_data *btqca_data = hci_get_priv(hdev); 3953 3954 btqca_data->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3955 btqca_data->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3956 } 3957 3958 if (!(status & QCA_SYSCFG_UPDATED)) { 3959 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3960 if (err < 0) 3961 return err; 3962 3963 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3964 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3965 * cause potential enable failure. 3966 */ 3967 if (info->rom_version >= 0x00130201) 3968 msleep(QCA_BT_RESET_WAIT_MS); 3969 } 3970 3971 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3972 * work with the likes of HSP/HFP mSBC. 3973 */ 3974 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 3975 3976 return 0; 3977 } 3978 3979 static inline int __set_diag_interface(struct hci_dev *hdev) 3980 { 3981 struct btusb_data *data = hci_get_drvdata(hdev); 3982 struct usb_interface *intf = data->diag; 3983 int ret; 3984 3985 if (!data->diag) 3986 return -ENODEV; 3987 3988 ret = usb_find_common_endpoints(intf->cur_altsetting, &data->diag_rx_ep, 3989 &data->diag_tx_ep, NULL, NULL); 3990 if (ret) { 3991 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3992 return -ENODEV; 3993 } 3994 3995 return 0; 3996 } 3997 3998 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3999 { 4000 struct btusb_data *data = hci_get_drvdata(hdev); 4001 struct sk_buff *skb; 4002 struct urb *urb; 4003 unsigned int pipe; 4004 4005 if (!data->diag_tx_ep) 4006 return ERR_PTR(-ENODEV); 4007 4008 urb = usb_alloc_urb(0, GFP_KERNEL); 4009 if (!urb) 4010 return ERR_PTR(-ENOMEM); 4011 4012 skb = bt_skb_alloc(2, GFP_KERNEL); 4013 if (!skb) { 4014 usb_free_urb(urb); 4015 return ERR_PTR(-ENOMEM); 4016 } 4017 4018 skb_put_u8(skb, 0xf0); 4019 skb_put_u8(skb, enable); 4020 4021 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 4022 4023 usb_fill_bulk_urb(urb, data->udev, pipe, 4024 skb->data, skb->len, btusb_tx_complete, skb); 4025 4026 skb->dev = (void *)hdev; 4027 4028 return urb; 4029 } 4030 4031 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 4032 { 4033 struct btusb_data *data = hci_get_drvdata(hdev); 4034 struct urb *urb; 4035 4036 if (!data->diag) 4037 return -ENODEV; 4038 4039 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4040 return -ENETDOWN; 4041 4042 urb = alloc_diag_urb(hdev, enable); 4043 if (IS_ERR(urb)) 4044 return PTR_ERR(urb); 4045 4046 return submit_or_queue_tx_urb(hdev, urb); 4047 } 4048 4049 #ifdef CONFIG_PM 4050 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 4051 { 4052 struct btusb_data *data = priv; 4053 4054 pm_wakeup_event(&data->udev->dev, 0); 4055 pm_system_wakeup(); 4056 4057 /* Disable only if not already disabled (keep it balanced) */ 4058 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4059 disable_irq_nosync(irq); 4060 disable_irq_wake(irq); 4061 } 4062 return IRQ_HANDLED; 4063 } 4064 4065 static const struct of_device_id btusb_match_table[] = { 4066 { .compatible = "usb1286,204e" }, 4067 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 4068 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 4069 { } 4070 }; 4071 MODULE_DEVICE_TABLE(of, btusb_match_table); 4072 4073 /* Use an oob wakeup pin? */ 4074 static int btusb_config_oob_wake(struct hci_dev *hdev) 4075 { 4076 struct btusb_data *data = hci_get_drvdata(hdev); 4077 struct device *dev = &data->udev->dev; 4078 int irq, ret; 4079 4080 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4081 4082 if (!of_match_device(btusb_match_table, dev)) 4083 return 0; 4084 4085 /* Move on if no IRQ specified */ 4086 irq = of_irq_get_byname(dev->of_node, "wakeup"); 4087 if (irq <= 0) { 4088 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 4089 return 0; 4090 } 4091 4092 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4093 ret = request_irq(irq, btusb_oob_wake_handler, 0, "OOB Wake-on-BT", data); 4094 if (ret) { 4095 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4096 return ret; 4097 } 4098 4099 ret = device_init_wakeup(dev, true); 4100 if (ret) { 4101 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4102 goto err_free_irq; 4103 } 4104 4105 data->oob_wake_irq = irq; 4106 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4107 4108 return 0; 4109 4110 err_free_irq: 4111 free_irq(irq, data); 4112 4113 return ret; 4114 } 4115 #else 4116 static inline int btusb_config_oob_wake(struct hci_dev *hdev) 4117 { 4118 return 0; 4119 } 4120 #endif 4121 4122 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4123 { 4124 if (dmi_check_system(btusb_needs_reset_resume_table)) 4125 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4126 } 4127 4128 static bool btusb_wakeup(struct hci_dev *hdev) 4129 { 4130 struct btusb_data *data = hci_get_drvdata(hdev); 4131 4132 return device_may_wakeup(&data->udev->dev); 4133 } 4134 4135 static int btusb_shutdown_qca(struct hci_dev *hdev) 4136 { 4137 int err; 4138 4139 err = __hci_reset_sync(hdev); 4140 if (err) 4141 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4142 4143 return err; 4144 } 4145 4146 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4147 size_t count, loff_t *ppos) 4148 { 4149 struct btusb_data *data = file->private_data; 4150 char buf[3]; 4151 4152 buf[0] = data->poll_sync ? 'Y' : 'N'; 4153 buf[1] = '\n'; 4154 buf[2] = '\0'; 4155 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4156 } 4157 4158 static ssize_t force_poll_sync_write(struct file *file, 4159 const char __user *user_buf, 4160 size_t count, loff_t *ppos) 4161 { 4162 struct btusb_data *data = file->private_data; 4163 bool enable; 4164 int err; 4165 4166 err = kstrtobool_from_user(user_buf, count, &enable); 4167 if (err) 4168 return err; 4169 4170 /* Only allow changes while the adapter is down and it is using legacy 4171 * protocol. 4172 */ 4173 if (test_bit(HCI_UP, &data->hdev->flags) || 4174 data->proto != BTUSB_PROTO_LEGACY) 4175 return -EPERM; 4176 4177 if (data->poll_sync == enable) 4178 return -EALREADY; 4179 4180 data->poll_sync = enable; 4181 4182 return count; 4183 } 4184 4185 static const struct file_operations force_poll_sync_fops = { 4186 .owner = THIS_MODULE, 4187 .open = simple_open, 4188 .read = force_poll_sync_read, 4189 .write = force_poll_sync_write, 4190 .llseek = default_llseek, 4191 }; 4192 4193 #define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \ 4194 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000) 4195 #define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0 4196 struct btusb_hci_drv_rp_supported_altsettings { 4197 __u8 num; 4198 __u8 altsettings[]; 4199 } __packed; 4200 4201 #define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \ 4202 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001) 4203 #define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1 4204 struct btusb_hci_drv_cmd_switch_altsetting { 4205 __u8 altsetting; 4206 } __packed; 4207 4208 static const struct { 4209 u16 opcode; 4210 const char *desc; 4211 } btusb_hci_drv_supported_commands[] = { 4212 /* Common commands */ 4213 { HCI_DRV_OP_READ_INFO, "Read Info" }, 4214 4215 /* Driver specific commands */ 4216 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" }, 4217 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" }, 4218 }; 4219 static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data, 4220 u16 data_len) 4221 { 4222 struct hci_drv_rp_read_info *rp; 4223 size_t rp_size; 4224 int err, i; 4225 u16 opcode, num_supported_commands = 4226 ARRAY_SIZE(btusb_hci_drv_supported_commands); 4227 4228 rp_size = sizeof(*rp) + num_supported_commands * 2; 4229 4230 rp = kmalloc(rp_size, GFP_KERNEL); 4231 if (!rp) 4232 return -ENOMEM; 4233 4234 strscpy_pad(rp->driver_name, btusb_driver.name); 4235 4236 rp->num_supported_commands = cpu_to_le16(num_supported_commands); 4237 for (i = 0; i < num_supported_commands; i++) { 4238 opcode = btusb_hci_drv_supported_commands[i].opcode; 4239 bt_dev_info(hdev, 4240 "Supported HCI Drv command (0x%02x|0x%04x): %s", 4241 hci_opcode_ogf(opcode), 4242 hci_opcode_ocf(opcode), 4243 btusb_hci_drv_supported_commands[i].desc); 4244 rp->supported_commands[i] = cpu_to_le16(opcode); 4245 } 4246 4247 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO, 4248 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4249 4250 kfree(rp); 4251 return err; 4252 } 4253 4254 static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data, 4255 u16 data_len) 4256 { 4257 struct btusb_data *drvdata = hci_get_drvdata(hdev); 4258 struct btusb_hci_drv_rp_supported_altsettings *rp; 4259 size_t rp_size; 4260 int err; 4261 u8 i; 4262 4263 /* There are at most 7 alt (0 - 6) */ 4264 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL); 4265 if (!rp) 4266 return -ENOMEM; 4267 4268 rp->num = 0; 4269 if (!drvdata->isoc) 4270 goto done; 4271 4272 for (i = 0; i <= 6; i++) { 4273 if (btusb_find_altsetting(drvdata->isoc, i)) 4274 rp->altsettings[rp->num++] = i; 4275 } 4276 4277 done: 4278 rp_size = sizeof(*rp) + rp->num; 4279 4280 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, 4281 HCI_DRV_STATUS_SUCCESS, rp, rp_size); 4282 kfree(rp); 4283 return err; 4284 } 4285 4286 static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data, 4287 u16 data_len) 4288 { 4289 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data; 4290 u8 status; 4291 4292 if (cmd->altsetting > 6) { 4293 status = HCI_DRV_STATUS_INVALID_PARAMETERS; 4294 } else { 4295 if (btusb_switch_alt_setting(hdev, cmd->altsetting)) 4296 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR; 4297 else 4298 status = HCI_DRV_STATUS_SUCCESS; 4299 } 4300 4301 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, 4302 status); 4303 } 4304 4305 static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = { 4306 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE }, 4307 }; 4308 4309 static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = { 4310 { btusb_hci_drv_supported_altsettings, 4311 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE }, 4312 { btusb_hci_drv_switch_altsetting, 4313 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE }, 4314 }; 4315 4316 static struct hci_drv btusb_hci_drv = { 4317 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers), 4318 .common_handlers = btusb_hci_drv_common_handlers, 4319 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers), 4320 .specific_handlers = btusb_hci_drv_specific_handlers, 4321 }; 4322 4323 /* 4324 * ============================================================================ 4325 * Qualcomm support 4326 * ============================================================================ 4327 */ 4328 4329 static int btusb_recv_intr_qcom(struct btusb_data *data, void *buffer, int count) 4330 { 4331 unsigned long flags; 4332 int err = 0; 4333 4334 spin_lock_irqsave(&data->rxlock, flags); 4335 data->evt_skb = btusb_qcom_recv_intr(data->hdev, data->evt_skb, buffer, count, 4336 &err); 4337 spin_unlock_irqrestore(&data->rxlock, flags); 4338 4339 return err; 4340 } 4341 4342 static int btusb_recv_bulk_qcom(struct btusb_data *data, void *buffer, int count) 4343 { 4344 unsigned long flags; 4345 int err = 0; 4346 4347 spin_lock_irqsave(&data->rxlock, flags); 4348 data->acl_skb = btusb_qcom_recv_bulk(data->hdev, data->acl_skb, buffer, count, 4349 &err); 4350 spin_unlock_irqrestore(&data->rxlock, flags); 4351 4352 return err; 4353 } 4354 4355 static int btusb_send_vendor_frame_qcom(struct hci_dev *hdev, struct sk_buff *skb) 4356 { 4357 u8 pkt_type = hci_skb_pkt_type(skb); 4358 struct urb *urb; 4359 4360 switch (pkt_type) { 4361 case QPERI_COMMAND_PKT: 4362 urb = alloc_ctrl_urb(hdev, skb); 4363 break; 4364 4365 case QPERI_ACLDATA_PKT: 4366 urb = alloc_bulk_urb(hdev, skb); 4367 break; 4368 4369 default: 4370 return -EILSEQ; 4371 } 4372 4373 if (IS_ERR(urb)) 4374 return PTR_ERR(urb); 4375 4376 return submit_or_queue_tx_urb(hdev, urb); 4377 } 4378 4379 /* 4380 * ============================================================================ 4381 * Qualcomm support end 4382 * ============================================================================ 4383 */ 4384 4385 static int btusb_probe(struct usb_interface *intf, 4386 const struct usb_device_id *id) 4387 { 4388 struct gpio_desc *reset_gpio; 4389 struct usb_host_interface *alt; 4390 struct usb_endpoint_descriptor *bulk_rx_ep, *bulk_tx_ep, *intr_ep; 4391 struct btusb_data *data; 4392 struct hci_dev *hdev; 4393 unsigned ifnum_base; 4394 int err, priv_size = 0; 4395 4396 BT_DBG("intf %p id %p", intf, id); 4397 4398 if ((id->driver_info & BTUSB_IFNUM_2) && 4399 (intf->cur_altsetting->desc.bInterfaceNumber != 0) && 4400 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4401 return -ENODEV; 4402 4403 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4404 4405 if (!id->driver_info) { 4406 const struct usb_device_id *match; 4407 4408 match = usb_match_id(intf, quirks_table); 4409 if (match) 4410 id = match; 4411 } 4412 4413 if (id->driver_info & BTUSB_IGNORE) 4414 return -ENODEV; 4415 4416 if (id->driver_info & BTUSB_ATH3012) { 4417 struct usb_device *udev = interface_to_usbdev(intf); 4418 4419 /* Old firmware would otherwise let ath3k driver load 4420 * patch and sysconfig files 4421 */ 4422 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4423 !btusb_qca_need_patch(udev)) 4424 return -ENODEV; 4425 } 4426 4427 data = kzalloc_obj(*data); 4428 if (!data) 4429 return -ENOMEM; 4430 4431 data->match_id = id; 4432 4433 /* Alternate setting 1 with a single pair of bulk endpoints and no 4434 * interrupt endpoint means the controller supports Bulk Serialization 4435 * Mode, in which every packet is prefixed with an H:4 header and 4436 * carried over the bulk endpoints. 4437 */ 4438 alt = btusb_find_altsetting(intf, 1); 4439 if (alt && usb_find_int_in_endpoint(alt, &intr_ep) && 4440 !usb_find_common_endpoints(alt, &bulk_rx_ep, &bulk_tx_ep, NULL, 4441 NULL)) { 4442 err = usb_set_interface(interface_to_usbdev(intf), ifnum_base, 1); 4443 if (!err) 4444 data->proto = BTUSB_PROTO_H4; 4445 else 4446 dev_warn(&intf->dev, 4447 "failed to select alt setting 1 (%d), using legacy mode", 4448 err); 4449 } 4450 4451 /* Check if all endpoints could be enumerated, legacy mode requires 4452 * interrupt and bulk endpoints while H4 mode only requires bulk 4453 * endpoints. 4454 */ 4455 err = usb_find_common_endpoints(intf->cur_altsetting, &data->bulk_rx_ep, 4456 &data->bulk_tx_ep, 4457 data->proto == BTUSB_PROTO_LEGACY ? 4458 &data->intr_ep : NULL, 4459 NULL); 4460 if (err) { 4461 dev_err(&intf->dev, "failed to enumerate endpoints\n"); 4462 goto err_free_data; 4463 } 4464 4465 if (id->driver_info & BTUSB_AMP) { 4466 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4467 data->cmdreq = 0x2b; 4468 } else { 4469 data->cmdreq_type = USB_TYPE_CLASS; 4470 data->cmdreq = 0x00; 4471 } 4472 4473 data->udev = interface_to_usbdev(intf); 4474 data->intf = intf; 4475 4476 INIT_WORK(&data->work, btusb_work); 4477 INIT_WORK(&data->waker, btusb_waker); 4478 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4479 4480 skb_queue_head_init(&data->acl_q); 4481 4482 init_usb_anchor(&data->deferred); 4483 init_usb_anchor(&data->tx_anchor); 4484 spin_lock_init(&data->txlock); 4485 4486 init_usb_anchor(&data->intr_anchor); 4487 init_usb_anchor(&data->bulk_anchor); 4488 init_usb_anchor(&data->isoc_anchor); 4489 init_usb_anchor(&data->diag_anchor); 4490 init_usb_anchor(&data->ctrl_anchor); 4491 spin_lock_init(&data->rxlock); 4492 4493 data->recv_event = hci_recv_frame; 4494 data->recv_intr = btusb_recv_intr; 4495 data->recv_bulk = btusb_recv_bulk; 4496 4497 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4498 /* Allocate extra space for Intel device */ 4499 priv_size += sizeof(struct btintel_data); 4500 4501 /* Override the rx handlers */ 4502 data->recv_event = btintel_recv_event; 4503 data->recv_bulk = btusb_recv_bulk_intel; 4504 } else if (id->driver_info & BTUSB_REALTEK) { 4505 /* Allocate extra space for Realtek device */ 4506 priv_size += sizeof(struct btrealtek_data); 4507 4508 data->recv_event = btusb_recv_event_realtek; 4509 } else if (id->driver_info & BTUSB_MEDIATEK) { 4510 /* Allocate extra space for Mediatek device */ 4511 priv_size += sizeof(struct btmtk_data); 4512 } else if (id->driver_info & BTUSB_QCA_WCN6855) { 4513 /* Allocate extra space for QCA WCN6855 device */ 4514 priv_size += sizeof(struct btqca_data); 4515 } else if (id->driver_info & BTUSB_QUALCOMM) { 4516 /* Allocate extra space for Qualcomm device */ 4517 priv_size += btusb_qcom_hdev_priv_size(); 4518 } 4519 4520 data->recv_acl = hci_recv_frame; 4521 4522 hdev = hci_alloc_dev_priv(priv_size); 4523 if (!hdev) { 4524 err = -ENOMEM; 4525 goto err_free_data; 4526 } 4527 4528 hdev->bus = HCI_USB; 4529 hci_set_drvdata(hdev, data); 4530 4531 data->hdev = hdev; 4532 4533 SET_HCIDEV_DEV(hdev, &intf->dev); 4534 4535 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4536 GPIOD_OUT_LOW); 4537 if (IS_ERR(reset_gpio)) { 4538 err = PTR_ERR(reset_gpio); 4539 goto err_free_hdev; 4540 } else if (reset_gpio) { 4541 data->reset_gpio = reset_gpio; 4542 } 4543 4544 hdev->open = btusb_open; 4545 hdev->close = btusb_close; 4546 hdev->flush = btusb_flush; 4547 hdev->send = btusb_send_frame; 4548 hdev->notify = btusb_notify; 4549 hdev->wakeup = btusb_wakeup; 4550 hdev->hci_drv = &btusb_hci_drv; 4551 4552 err = btusb_config_oob_wake(hdev); 4553 if (err) 4554 goto err_put_reset; 4555 4556 /* Marvell devices may need a specific chip configuration */ 4557 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4558 err = marvell_config_oob_wake(hdev); 4559 if (err) 4560 goto err_disable_wakeup; 4561 } 4562 4563 if (id->driver_info & BTUSB_CW6622) 4564 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4565 4566 if (id->driver_info & BTUSB_BCM2045) 4567 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY); 4568 4569 if (id->driver_info & BTUSB_BCM92035) 4570 hdev->setup = btusb_setup_bcm92035; 4571 4572 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4573 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4574 hdev->manufacturer = 15; 4575 hdev->setup = btbcm_setup_patchram; 4576 hdev->set_diag = btusb_bcm_set_diag; 4577 hdev->set_bdaddr = btbcm_set_bdaddr; 4578 4579 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4580 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4581 } 4582 4583 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4584 (id->driver_info & BTUSB_BCM_APPLE)) { 4585 hdev->manufacturer = 15; 4586 hdev->setup = btbcm_setup_apple; 4587 hdev->set_diag = btusb_bcm_set_diag; 4588 4589 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4590 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4591 } 4592 4593 /* Combined Intel Device setup to support multiple setup routine */ 4594 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4595 err = btintel_configure_setup(hdev, btusb_driver.name); 4596 if (err) 4597 goto err_kill_tx_urbs; 4598 4599 /* Transport specific configuration */ 4600 hdev->send = btusb_send_frame_intel; 4601 hdev->reset = btusb_intel_reset; 4602 4603 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4604 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4605 4606 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4607 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4608 4609 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4610 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4611 } 4612 4613 if (id->driver_info & BTUSB_MARVELL) 4614 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4615 4616 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4617 (id->driver_info & BTUSB_MEDIATEK)) { 4618 hdev->setup = btusb_mtk_setup; 4619 hdev->shutdown = btusb_mtk_shutdown; 4620 hdev->manufacturer = 70; 4621 hdev->reset = btmtk_reset_sync; 4622 hdev->set_bdaddr = btmtk_set_bdaddr; 4623 hdev->send = btusb_send_frame_mtk; 4624 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN); 4625 hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP); 4626 data->recv_acl = btmtk_usb_recv_acl; 4627 data->recv_event = btmtk_recv_event; 4628 data->suspend = btmtk_usb_suspend; 4629 data->resume = btmtk_usb_resume; 4630 data->disconnect = btusb_mtk_disconnect; 4631 } 4632 4633 if (id->driver_info & BTUSB_SWAVE) { 4634 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE); 4635 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS); 4636 } 4637 4638 if (id->driver_info & BTUSB_INTEL_BOOT) { 4639 hdev->manufacturer = 2; 4640 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4641 } 4642 4643 if (id->driver_info & BTUSB_ATH3012) { 4644 data->setup_on_usb = btusb_setup_qca; 4645 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4646 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4647 hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER); 4648 } 4649 4650 if (id->driver_info & BTUSB_QCA_ROME) { 4651 data->setup_on_usb = btusb_setup_qca; 4652 hdev->shutdown = btusb_shutdown_qca; 4653 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4654 hdev->reset = btusb_qca_reset; 4655 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4656 btusb_check_needs_reset_resume(intf); 4657 } 4658 4659 if (id->driver_info & BTUSB_QCA_WCN6855) { 4660 struct btqca_data *btqca_data = hci_get_priv(hdev); 4661 4662 btqca_data->qca_dump.id_vendor = id->idVendor; 4663 btqca_data->qca_dump.id_product = id->idProduct; 4664 data->recv_event = btusb_recv_evt_qca; 4665 data->recv_acl = btusb_recv_acl_qca; 4666 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4667 data->setup_on_usb = btusb_setup_qca; 4668 hdev->classify_pkt_type = btusb_classify_qca_pkt_type; 4669 hdev->shutdown = btusb_shutdown_qca; 4670 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4671 hdev->reset = btusb_qca_reset; 4672 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4673 hci_set_msft_opcode(hdev, 0xFD70); 4674 } 4675 4676 if (id->driver_info & BTUSB_QUALCOMM) { 4677 struct btusb_qcom *xport_data; 4678 4679 if (!IS_ENABLED(CONFIG_BT_HCIBTUSB_QCOM)) { 4680 err = -ENODEV; 4681 bt_dev_err(hdev, "CONFIG_BT_HCIBTUSB_QCOM not enabled"); 4682 goto err_kill_tx_urbs; 4683 } 4684 4685 xport_data = btusb_qcom_xport_data(hdev); 4686 xport_data->reset_gpio = data->reset_gpio; 4687 xport_data->prepare_reset = btusb_prepare_reset; 4688 xport_data->recv_bt_frame = btusb_recv_frame; 4689 xport_data->send_bt_frame = btusb_send_frame; 4690 xport_data->send_vendor_frame = btusb_send_vendor_frame_qcom; 4691 4692 data->recv_intr = btusb_recv_intr_qcom; 4693 data->recv_bulk = btusb_recv_bulk_qcom; 4694 data->disconnect = btusb_qcom_disconnect; 4695 4696 hdev->manufacturer = 0x1d; 4697 hdev->send = btusb_qcom_send_frame; 4698 hdev->setup = btusb_qcom_setup; 4699 } 4700 4701 if (id->driver_info & BTUSB_AMP) { 4702 /* AMP controllers do not support SCO packets */ 4703 data->isoc = NULL; 4704 } else if (data->proto == BTUSB_PROTO_H4) { 4705 /* In H:4 mode every packet, including SCO/ISO, is carried over 4706 * the bulk endpoints, so the isochronous interface must not be 4707 * claimed nor have its alternate settings switched. 4708 */ 4709 data->isoc = NULL; 4710 } else { 4711 /* Interface orders are hardcoded in the specification */ 4712 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4713 data->isoc_ifnum = ifnum_base + 1; 4714 } 4715 4716 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4717 (id->driver_info & BTUSB_REALTEK)) { 4718 btrtl_set_driver_name(hdev, btusb_driver.name); 4719 hdev->setup = btusb_setup_realtek; 4720 hdev->shutdown = btrtl_shutdown_realtek; 4721 hdev->reset = btusb_rtl_reset; 4722 hdev->hw_error = btusb_rtl_hw_error; 4723 4724 /* Realtek devices need to set remote wakeup on auto-suspend */ 4725 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4726 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4727 } 4728 4729 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4730 /* Support is advertised, but not implemented */ 4731 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING); 4732 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER); 4733 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT); 4734 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN); 4735 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE); 4736 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN); 4737 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT); 4738 } 4739 4740 if (!reset) 4741 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4742 4743 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4744 if (!disable_scofix) 4745 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE); 4746 } 4747 4748 if (id->driver_info & BTUSB_BROKEN_ISOC) 4749 data->isoc = NULL; 4750 4751 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4752 hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED); 4753 4754 if (id->driver_info & BTUSB_INVALID_LE_STATES) 4755 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES); 4756 4757 if (id->driver_info & BTUSB_BROKEN_EXT_SCAN) 4758 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN); 4759 4760 if (id->driver_info & BTUSB_DIGIANSWER) { 4761 data->cmdreq_type = USB_TYPE_VENDOR; 4762 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4763 } 4764 4765 if (id->driver_info & BTUSB_CSR) { 4766 struct usb_device *udev = data->udev; 4767 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4768 4769 /* Old firmware would otherwise execute USB reset */ 4770 if (bcdDevice < 0x117) 4771 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE); 4772 4773 /* This must be set first in case we disable it for fakes */ 4774 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY); 4775 4776 /* Fake CSR devices with broken commands */ 4777 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4778 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4779 hdev->setup = btusb_setup_csr; 4780 } 4781 4782 if (id->driver_info & BTUSB_SNIFFER) { 4783 struct usb_device *udev = data->udev; 4784 4785 /* New sniffer firmware has crippled HCI interface */ 4786 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4787 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE); 4788 } 4789 4790 if (id->driver_info & BTUSB_INTEL_BOOT) { 4791 /* A bug in the bootloader causes that interrupt interface is 4792 * only enabled after receiving SetInterface(0, AltSetting=0). 4793 */ 4794 err = usb_set_interface(data->udev, 0, 0); 4795 if (err < 0) { 4796 BT_ERR("failed to set interface 0, alt 0 %d", err); 4797 goto err_kill_tx_urbs; 4798 } 4799 } 4800 4801 if (data->isoc) { 4802 err = usb_driver_claim_interface(&btusb_driver, 4803 data->isoc, data); 4804 if (err < 0) 4805 goto err_kill_tx_urbs; 4806 } 4807 4808 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4809 if (!usb_driver_claim_interface(&btusb_driver, 4810 data->diag, data)) 4811 __set_diag_interface(hdev); 4812 else 4813 data->diag = NULL; 4814 } 4815 4816 if (enable_autosuspend) 4817 usb_enable_autosuspend(data->udev); 4818 4819 if (data->proto == BTUSB_PROTO_LEGACY) 4820 data->poll_sync = enable_poll_sync; 4821 4822 err = hci_register_dev(hdev); 4823 if (err < 0) 4824 goto err_release_siblings; 4825 4826 usb_set_intfdata(intf, data); 4827 4828 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4829 &force_poll_sync_fops); 4830 4831 return 0; 4832 4833 err_release_siblings: 4834 if (data->diag) { 4835 usb_set_intfdata(data->diag, NULL); 4836 usb_driver_release_interface(&btusb_driver, data->diag); 4837 } 4838 if (data->isoc) { 4839 usb_set_intfdata(data->isoc, NULL); 4840 usb_driver_release_interface(&btusb_driver, data->isoc); 4841 } 4842 err_kill_tx_urbs: 4843 usb_kill_anchored_urbs(&data->tx_anchor); 4844 err_disable_wakeup: 4845 if (data->oob_wake_irq) { 4846 device_init_wakeup(&data->udev->dev, false); 4847 free_irq(data->oob_wake_irq, data); 4848 } 4849 err_put_reset: 4850 if (data->reset_gpio) 4851 gpiod_put(data->reset_gpio); 4852 err_free_hdev: 4853 hci_free_dev(hdev); 4854 err_free_data: 4855 kfree(data); 4856 4857 return err; 4858 } 4859 4860 static void btusb_disconnect(struct usb_interface *intf) 4861 { 4862 struct btusb_data *data = usb_get_intfdata(intf); 4863 struct hci_dev *hdev; 4864 4865 BT_DBG("intf %p", intf); 4866 4867 if (!data) 4868 return; 4869 4870 hdev = data->hdev; 4871 usb_set_intfdata(data->intf, NULL); 4872 4873 if (data->isoc) 4874 usb_set_intfdata(data->isoc, NULL); 4875 4876 if (data->diag) 4877 usb_set_intfdata(data->diag, NULL); 4878 4879 if (data->disconnect) 4880 data->disconnect(hdev); 4881 4882 hci_unregister_dev(hdev); 4883 4884 if (data->oob_wake_irq) { 4885 device_init_wakeup(&data->udev->dev, false); 4886 free_irq(data->oob_wake_irq, data); 4887 } 4888 4889 if (data->reset_gpio) 4890 gpiod_put(data->reset_gpio); 4891 4892 if (test_and_clear_bit(BTUSB_RESET, &data->flags)) 4893 usb_autopm_put_interface_no_suspend(data->intf); 4894 4895 if (intf == data->intf) { 4896 if (data->isoc) 4897 usb_driver_release_interface(&btusb_driver, data->isoc); 4898 if (data->diag) 4899 usb_driver_release_interface(&btusb_driver, data->diag); 4900 } else if (intf == data->isoc) { 4901 if (data->diag) 4902 usb_driver_release_interface(&btusb_driver, data->diag); 4903 usb_driver_release_interface(&btusb_driver, data->intf); 4904 } else if (intf == data->diag) { 4905 if (data->isoc) 4906 usb_driver_release_interface(&btusb_driver, data->isoc); 4907 usb_driver_release_interface(&btusb_driver, data->intf); 4908 } 4909 4910 hci_free_dev(hdev); 4911 kfree(data); 4912 } 4913 4914 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4915 { 4916 struct btusb_data *data = usb_get_intfdata(intf); 4917 4918 BT_DBG("intf %p", intf); 4919 4920 /* 4921 * It is reported that remote wakeup events could sometimes cause some 4922 * adapters completely unresponsive. Resetting the xHCI root hub doesn't 4923 * help at all, and recovering from such a state needs a power cycle. 4924 * Since disabling remote wakeup simply causes the USB core to gate 4925 * runtime autosuspend as well due to needs_remote_wakeup == 1, let's do 4926 * this ourselves to make our life easier. The interface can be safely 4927 * autosuspended as long as remote wakeup is disabled, i.e., after 4928 * closing the HCI device. 4929 * 4930 * Don't auto-suspend if there are connections or discovery in progress. 4931 * 4932 * External suspend calls shall never fail. Specifically, a device with 4933 * broken remote wakeup may still take the advantage of remote wakeup in 4934 * order to wake up the system from sleep if userspace has enabled it as 4935 * a wakeup source. 4936 */ 4937 if (PMSG_IS_AUTO(message) && 4938 ((test_bit(BTUSB_WAKEUP_BROKEN, &data->flags) && data->intf->needs_remote_wakeup) || 4939 hci_conn_count(data->hdev) || hci_discovery_active(data->hdev))) 4940 return -EBUSY; 4941 4942 if (data->suspend_count++) 4943 return 0; 4944 4945 spin_lock_irq(&data->txlock); 4946 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4947 set_bit(BTUSB_SUSPENDING, &data->flags); 4948 spin_unlock_irq(&data->txlock); 4949 } else { 4950 spin_unlock_irq(&data->txlock); 4951 data->suspend_count--; 4952 return -EBUSY; 4953 } 4954 4955 cancel_work_sync(&data->work); 4956 4957 if (data->suspend) 4958 data->suspend(data->hdev); 4959 4960 btusb_stop_traffic(data); 4961 usb_kill_anchored_urbs(&data->tx_anchor); 4962 4963 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4964 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4965 enable_irq_wake(data->oob_wake_irq); 4966 enable_irq(data->oob_wake_irq); 4967 } 4968 4969 /* For global suspend, Realtek devices lose the loaded fw 4970 * in them. But for autosuspend, firmware should remain. 4971 * Actually, it depends on whether the usb host sends 4972 * set feature (enable wakeup) or not. 4973 */ 4974 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4975 if (PMSG_IS_AUTO(message) && 4976 device_can_wakeup(&data->udev->dev)) 4977 data->udev->do_remote_wakeup = 1; 4978 else if (!PMSG_IS_AUTO(message) && 4979 !device_may_wakeup(&data->udev->dev)) { 4980 data->udev->do_remote_wakeup = 0; 4981 data->udev->reset_resume = 1; 4982 } 4983 } 4984 4985 return 0; 4986 } 4987 4988 static void play_deferred(struct btusb_data *data) 4989 { 4990 struct urb *urb; 4991 int err; 4992 4993 while ((urb = usb_get_from_anchor(&data->deferred))) { 4994 usb_anchor_urb(urb, &data->tx_anchor); 4995 4996 err = usb_submit_urb(urb, GFP_ATOMIC); 4997 if (err < 0) { 4998 if (err != -EPERM && err != -ENODEV) 4999 BT_ERR("%s urb %p submission failed (%d)", 5000 data->hdev->name, urb, -err); 5001 kfree(urb->setup_packet); 5002 usb_unanchor_urb(urb); 5003 usb_free_urb(urb); 5004 break; 5005 } 5006 5007 data->tx_in_flight++; 5008 usb_free_urb(urb); 5009 } 5010 5011 /* Cleanup the rest deferred urbs. */ 5012 while ((urb = usb_get_from_anchor(&data->deferred))) { 5013 kfree(urb->setup_packet); 5014 usb_free_urb(urb); 5015 } 5016 } 5017 5018 static int btusb_resume(struct usb_interface *intf) 5019 { 5020 struct btusb_data *data = usb_get_intfdata(intf); 5021 struct hci_dev *hdev = data->hdev; 5022 int err = 0; 5023 5024 BT_DBG("intf %p", intf); 5025 5026 if (--data->suspend_count) 5027 return 0; 5028 5029 /* Disable only if not already disabled (keep it balanced) */ 5030 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 5031 disable_irq(data->oob_wake_irq); 5032 disable_irq_wake(data->oob_wake_irq); 5033 } 5034 5035 if (!test_bit(HCI_RUNNING, &hdev->flags)) 5036 goto done; 5037 5038 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 5039 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 5040 if (err < 0) { 5041 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 5042 goto failed; 5043 } 5044 } 5045 5046 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 5047 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 5048 if (err < 0) { 5049 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 5050 goto failed; 5051 } 5052 5053 btusb_submit_bulk_urb(hdev, GFP_NOIO); 5054 } 5055 5056 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 5057 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 5058 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 5059 else 5060 btusb_submit_isoc_urb(hdev, GFP_NOIO); 5061 } 5062 5063 if (data->resume) 5064 data->resume(hdev); 5065 5066 spin_lock_irq(&data->txlock); 5067 play_deferred(data); 5068 clear_bit(BTUSB_SUSPENDING, &data->flags); 5069 spin_unlock_irq(&data->txlock); 5070 schedule_work(&data->work); 5071 5072 return 0; 5073 5074 failed: 5075 usb_scuttle_anchored_urbs(&data->deferred); 5076 done: 5077 spin_lock_irq(&data->txlock); 5078 clear_bit(BTUSB_SUSPENDING, &data->flags); 5079 spin_unlock_irq(&data->txlock); 5080 5081 return err; 5082 } 5083 5084 #ifdef CONFIG_DEV_COREDUMP 5085 static void btusb_coredump(struct device *dev) 5086 { 5087 struct btusb_data *data = dev_get_drvdata(dev); 5088 struct hci_dev *hdev = data->hdev; 5089 5090 if (hdev->dump.coredump) 5091 hdev->dump.coredump(hdev); 5092 } 5093 #endif 5094 5095 static struct usb_driver btusb_driver = { 5096 .name = "btusb", 5097 .probe = btusb_probe, 5098 .disconnect = btusb_disconnect, 5099 .suspend = pm_ptr(btusb_suspend), 5100 .resume = pm_ptr(btusb_resume), 5101 .id_table = btusb_table, 5102 .supports_autosuspend = 1, 5103 .disable_hub_initiated_lpm = 1, 5104 5105 #ifdef CONFIG_DEV_COREDUMP 5106 .driver = { 5107 .coredump = btusb_coredump, 5108 }, 5109 #endif 5110 }; 5111 5112 module_usb_driver(btusb_driver); 5113 5114 module_param(disable_scofix, bool, 0644); 5115 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 5116 5117 module_param(force_scofix, bool, 0644); 5118 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 5119 5120 module_param(enable_autosuspend, bool, 0644); 5121 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 5122 5123 module_param(reset, bool, 0644); 5124 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 5125 5126 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 5127 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 5128 MODULE_VERSION(VERSION); 5129 MODULE_LICENSE("GPL"); 5130