1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Generic Bluetooth USB driver 5 * 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 7 */ 8 9 #include <linux/dmi.h> 10 #include <linux/module.h> 11 #include <linux/usb.h> 12 #include <linux/usb/quirks.h> 13 #include <linux/firmware.h> 14 #include <linux/iopoll.h> 15 #include <linux/of_device.h> 16 #include <linux/of_irq.h> 17 #include <linux/suspend.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/debugfs.h> 20 #include <asm/unaligned.h> 21 22 #include <net/bluetooth/bluetooth.h> 23 #include <net/bluetooth/hci_core.h> 24 25 #include "btintel.h" 26 #include "btbcm.h" 27 #include "btrtl.h" 28 #include "btmtk.h" 29 30 #define VERSION "0.8" 31 32 static bool disable_scofix; 33 static bool force_scofix; 34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC); 36 static bool reset = true; 37 38 static struct usb_driver btusb_driver; 39 40 #define BTUSB_IGNORE BIT(0) 41 #define BTUSB_DIGIANSWER BIT(1) 42 #define BTUSB_CSR BIT(2) 43 #define BTUSB_SNIFFER BIT(3) 44 #define BTUSB_BCM92035 BIT(4) 45 #define BTUSB_BROKEN_ISOC BIT(5) 46 #define BTUSB_WRONG_SCO_MTU BIT(6) 47 #define BTUSB_ATH3012 BIT(7) 48 #define BTUSB_INTEL_COMBINED BIT(8) 49 #define BTUSB_INTEL_BOOT BIT(9) 50 #define BTUSB_BCM_PATCHRAM BIT(10) 51 #define BTUSB_MARVELL BIT(11) 52 #define BTUSB_SWAVE BIT(12) 53 #define BTUSB_AMP BIT(13) 54 #define BTUSB_QCA_ROME BIT(14) 55 #define BTUSB_BCM_APPLE BIT(15) 56 #define BTUSB_REALTEK BIT(16) 57 #define BTUSB_BCM2045 BIT(17) 58 #define BTUSB_IFNUM_2 BIT(18) 59 #define BTUSB_CW6622 BIT(19) 60 #define BTUSB_MEDIATEK BIT(20) 61 #define BTUSB_WIDEBAND_SPEECH BIT(21) 62 #define BTUSB_VALID_LE_STATES BIT(22) 63 #define BTUSB_QCA_WCN6855 BIT(23) 64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24) 65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25) 66 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26) 67 #define BTUSB_ACTIONS_SEMI BIT(27) 68 69 static const struct usb_device_id btusb_table[] = { 70 /* Generic Bluetooth USB device */ 71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 72 73 /* Generic Bluetooth AMP device */ 74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 75 76 /* Generic Bluetooth USB interface */ 77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 78 79 /* Apple-specific (Broadcom) devices */ 80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 82 83 /* MediaTek MT76x0E */ 84 { USB_DEVICE(0x0e8d, 0x763f) }, 85 86 /* Broadcom SoftSailing reporting vendor specific */ 87 { USB_DEVICE(0x0a5c, 0x21e1) }, 88 89 /* Apple MacBookPro 7,1 */ 90 { USB_DEVICE(0x05ac, 0x8213) }, 91 92 /* Apple iMac11,1 */ 93 { USB_DEVICE(0x05ac, 0x8215) }, 94 95 /* Apple MacBookPro6,2 */ 96 { USB_DEVICE(0x05ac, 0x8218) }, 97 98 /* Apple MacBookAir3,1, MacBookAir3,2 */ 99 { USB_DEVICE(0x05ac, 0x821b) }, 100 101 /* Apple MacBookAir4,1 */ 102 { USB_DEVICE(0x05ac, 0x821f) }, 103 104 /* Apple MacBookPro8,2 */ 105 { USB_DEVICE(0x05ac, 0x821a) }, 106 107 /* Apple MacMini5,1 */ 108 { USB_DEVICE(0x05ac, 0x8281) }, 109 110 /* AVM BlueFRITZ! USB v2.0 */ 111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 112 113 /* Bluetooth Ultraport Module from IBM */ 114 { USB_DEVICE(0x04bf, 0x030a) }, 115 116 /* ALPS Modules with non-standard id */ 117 { USB_DEVICE(0x044e, 0x3001) }, 118 { USB_DEVICE(0x044e, 0x3002) }, 119 120 /* Ericsson with non-standard id */ 121 { USB_DEVICE(0x0bdb, 0x1002) }, 122 123 /* Canyon CN-BTU1 with HID interfaces */ 124 { USB_DEVICE(0x0c10, 0x0000) }, 125 126 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 128 129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 131 .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* Broadcom BCM920703 (HTC Vive) */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Foxconn - Hon Hai */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Lite-On Technology - Broadcom based */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Broadcom devices with vendor specific id */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* ASUSTek Computer - Broadcom based */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* Belkin F8065bf - Broadcom based */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* IMC Networks - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* Dell Computer - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* Toshiba Corp - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Intel Bluetooth USB Bootloader (RAM module) */ 170 { USB_DEVICE(0x8087, 0x0a5a), 171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 172 173 { } /* Terminating entry */ 174 }; 175 176 MODULE_DEVICE_TABLE(usb, btusb_table); 177 178 static const struct usb_device_id blacklist_table[] = { 179 /* CSR BlueCore devices */ 180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 181 182 /* Broadcom BCM2033 without firmware */ 183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 184 185 /* Broadcom BCM2045 devices */ 186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 187 188 /* Atheros 3011 with sflash firmware */ 189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 196 197 /* Atheros AR9285 Malbec with sflash firmware */ 198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 199 200 /* Atheros 3012 with sflash firmware */ 201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 251 252 /* Atheros AR5BBU12 with sflash firmware */ 253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 254 255 /* Atheros AR5BBU12 with sflash firmware */ 256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 258 259 /* QCA ROME chipset */ 260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | 261 BTUSB_WIDEBAND_SPEECH }, 262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | 263 BTUSB_WIDEBAND_SPEECH }, 264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | 265 BTUSB_WIDEBAND_SPEECH }, 266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | 267 BTUSB_WIDEBAND_SPEECH }, 268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | 269 BTUSB_WIDEBAND_SPEECH }, 270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | 271 BTUSB_WIDEBAND_SPEECH }, 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | 273 BTUSB_WIDEBAND_SPEECH }, 274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | 275 BTUSB_WIDEBAND_SPEECH }, 276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | 277 BTUSB_WIDEBAND_SPEECH }, 278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | 279 BTUSB_WIDEBAND_SPEECH }, 280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | 281 BTUSB_WIDEBAND_SPEECH }, 282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | 283 BTUSB_WIDEBAND_SPEECH }, 284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | 285 BTUSB_WIDEBAND_SPEECH }, 286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | 287 BTUSB_WIDEBAND_SPEECH }, 288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | 289 BTUSB_WIDEBAND_SPEECH }, 290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | 291 BTUSB_WIDEBAND_SPEECH }, 292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | 293 BTUSB_WIDEBAND_SPEECH }, 294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | 295 BTUSB_WIDEBAND_SPEECH }, 296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | 297 BTUSB_WIDEBAND_SPEECH }, 298 299 /* QCA WCN6855 chipset */ 300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | 301 BTUSB_WIDEBAND_SPEECH | 302 BTUSB_VALID_LE_STATES }, 303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 | 304 BTUSB_WIDEBAND_SPEECH | 305 BTUSB_VALID_LE_STATES }, 306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 | 307 BTUSB_WIDEBAND_SPEECH | 308 BTUSB_VALID_LE_STATES }, 309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 | 310 BTUSB_WIDEBAND_SPEECH | 311 BTUSB_VALID_LE_STATES }, 312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 | 313 BTUSB_WIDEBAND_SPEECH | 314 BTUSB_VALID_LE_STATES }, 315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 | 316 BTUSB_WIDEBAND_SPEECH | 317 BTUSB_VALID_LE_STATES }, 318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 | 319 BTUSB_WIDEBAND_SPEECH | 320 BTUSB_VALID_LE_STATES }, 321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 | 322 BTUSB_WIDEBAND_SPEECH | 323 BTUSB_VALID_LE_STATES }, 324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 | 325 BTUSB_WIDEBAND_SPEECH | 326 BTUSB_VALID_LE_STATES }, 327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 | 328 BTUSB_WIDEBAND_SPEECH | 329 BTUSB_VALID_LE_STATES }, 330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 | 331 BTUSB_WIDEBAND_SPEECH | 332 BTUSB_VALID_LE_STATES }, 333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 | 334 BTUSB_WIDEBAND_SPEECH | 335 BTUSB_VALID_LE_STATES }, 336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 | 337 BTUSB_WIDEBAND_SPEECH | 338 BTUSB_VALID_LE_STATES }, 339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 | 340 BTUSB_WIDEBAND_SPEECH | 341 BTUSB_VALID_LE_STATES }, 342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 | 343 BTUSB_WIDEBAND_SPEECH | 344 BTUSB_VALID_LE_STATES }, 345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 | 346 BTUSB_WIDEBAND_SPEECH | 347 BTUSB_VALID_LE_STATES }, 348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 | 349 BTUSB_WIDEBAND_SPEECH | 350 BTUSB_VALID_LE_STATES }, 351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 | 352 BTUSB_WIDEBAND_SPEECH | 353 BTUSB_VALID_LE_STATES }, 354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 | 355 BTUSB_WIDEBAND_SPEECH | 356 BTUSB_VALID_LE_STATES }, 357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 | 358 BTUSB_WIDEBAND_SPEECH | 359 BTUSB_VALID_LE_STATES }, 360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 | 361 BTUSB_WIDEBAND_SPEECH | 362 BTUSB_VALID_LE_STATES }, 363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 | 364 BTUSB_WIDEBAND_SPEECH | 365 BTUSB_VALID_LE_STATES }, 366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 | 367 BTUSB_WIDEBAND_SPEECH | 368 BTUSB_VALID_LE_STATES }, 369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 | 370 BTUSB_WIDEBAND_SPEECH | 371 BTUSB_VALID_LE_STATES }, 372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 | 373 BTUSB_WIDEBAND_SPEECH | 374 BTUSB_VALID_LE_STATES }, 375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 | 376 BTUSB_WIDEBAND_SPEECH | 377 BTUSB_VALID_LE_STATES }, 378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 | 379 BTUSB_WIDEBAND_SPEECH | 380 BTUSB_VALID_LE_STATES }, 381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 | 382 BTUSB_WIDEBAND_SPEECH | 383 BTUSB_VALID_LE_STATES }, 384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 | 385 BTUSB_WIDEBAND_SPEECH | 386 BTUSB_VALID_LE_STATES }, 387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 | 388 BTUSB_WIDEBAND_SPEECH | 389 BTUSB_VALID_LE_STATES }, 390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 | 391 BTUSB_WIDEBAND_SPEECH | 392 BTUSB_VALID_LE_STATES }, 393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 | 394 BTUSB_WIDEBAND_SPEECH | 395 BTUSB_VALID_LE_STATES }, 396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 | 397 BTUSB_WIDEBAND_SPEECH | 398 BTUSB_VALID_LE_STATES }, 399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 | 400 BTUSB_WIDEBAND_SPEECH | 401 BTUSB_VALID_LE_STATES }, 402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 | 403 BTUSB_WIDEBAND_SPEECH | 404 BTUSB_VALID_LE_STATES }, 405 406 /* QCA WCN785x chipset */ 407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 | 408 BTUSB_WIDEBAND_SPEECH | 409 BTUSB_VALID_LE_STATES }, 410 411 /* Broadcom BCM2035 */ 412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 415 416 /* Broadcom BCM2045 */ 417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 419 420 /* IBM/Lenovo ThinkPad with Broadcom chip */ 421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 423 424 /* HP laptop with Broadcom chip */ 425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 426 427 /* Dell laptop with Broadcom chip */ 428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 429 430 /* Dell Wireless 370 and 410 devices */ 431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 433 434 /* Belkin F8T012 and F8T013 devices */ 435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 437 438 /* Asus WL-BTD202 device */ 439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 440 441 /* Kensington Bluetooth USB adapter */ 442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 443 444 /* RTX Telecom based adapters with buggy SCO support */ 445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 447 448 /* CONWISE Technology based adapters with buggy SCO support */ 449 { USB_DEVICE(0x0e5e, 0x6622), 450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 451 452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 454 455 /* Digianswer devices */ 456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 458 459 /* CSR BlueCore Bluetooth Sniffer */ 460 { USB_DEVICE(0x0a12, 0x0002), 461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 462 463 /* Frontline ComProbe Bluetooth Sniffer */ 464 { USB_DEVICE(0x16d3, 0x0002), 465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 466 467 /* Marvell Bluetooth devices */ 468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 471 472 /* Intel Bluetooth devices */ 473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, 474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, 475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, 476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, 477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, 478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED }, 479 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 480 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | 481 BTUSB_INTEL_NO_WBS_SUPPORT | 482 BTUSB_INTEL_BROKEN_INITIAL_NCMD | 483 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 484 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED | 485 BTUSB_INTEL_NO_WBS_SUPPORT | 486 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 487 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, 488 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED | 489 BTUSB_INTEL_BROKEN_SHUTDOWN_LED }, 490 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, 491 492 /* Other Intel Bluetooth devices */ 493 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 494 .driver_info = BTUSB_IGNORE }, 495 496 /* Realtek 8821CE Bluetooth devices */ 497 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK | 498 BTUSB_WIDEBAND_SPEECH }, 499 500 /* Realtek 8822CE Bluetooth devices */ 501 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | 502 BTUSB_WIDEBAND_SPEECH }, 503 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | 504 BTUSB_WIDEBAND_SPEECH }, 505 506 /* Realtek 8822CU Bluetooth devices */ 507 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 508 BTUSB_WIDEBAND_SPEECH }, 509 510 /* Realtek 8852AE Bluetooth devices */ 511 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | 512 BTUSB_WIDEBAND_SPEECH }, 513 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | 514 BTUSB_WIDEBAND_SPEECH }, 515 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK | 516 BTUSB_WIDEBAND_SPEECH }, 517 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK | 518 BTUSB_WIDEBAND_SPEECH }, 519 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK | 520 BTUSB_WIDEBAND_SPEECH }, 521 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | 522 BTUSB_WIDEBAND_SPEECH }, 523 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK | 524 BTUSB_WIDEBAND_SPEECH }, 525 526 /* Realtek 8852CE Bluetooth devices */ 527 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK | 528 BTUSB_WIDEBAND_SPEECH }, 529 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK | 530 BTUSB_WIDEBAND_SPEECH }, 531 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK | 532 BTUSB_WIDEBAND_SPEECH }, 533 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK | 534 BTUSB_WIDEBAND_SPEECH }, 535 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK | 536 BTUSB_WIDEBAND_SPEECH }, 537 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK | 538 BTUSB_WIDEBAND_SPEECH }, 539 540 /* Realtek 8852BE Bluetooth devices */ 541 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK | 542 BTUSB_WIDEBAND_SPEECH }, 543 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK | 544 BTUSB_WIDEBAND_SPEECH }, 545 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK | 546 BTUSB_WIDEBAND_SPEECH }, 547 548 /* Realtek Bluetooth devices */ 549 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 550 .driver_info = BTUSB_REALTEK }, 551 552 /* MediaTek Bluetooth devices */ 553 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), 554 .driver_info = BTUSB_MEDIATEK | 555 BTUSB_WIDEBAND_SPEECH | 556 BTUSB_VALID_LE_STATES }, 557 558 /* Additional MediaTek MT7615E Bluetooth devices */ 559 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, 560 561 /* Additional MediaTek MT7663 Bluetooth devices */ 562 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK | 563 BTUSB_WIDEBAND_SPEECH | 564 BTUSB_VALID_LE_STATES }, 565 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK | 566 BTUSB_WIDEBAND_SPEECH | 567 BTUSB_VALID_LE_STATES }, 568 569 /* Additional MediaTek MT7668 Bluetooth devices */ 570 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | 571 BTUSB_WIDEBAND_SPEECH | 572 BTUSB_VALID_LE_STATES }, 573 574 /* Additional MediaTek MT7921 Bluetooth devices */ 575 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK | 576 BTUSB_WIDEBAND_SPEECH | 577 BTUSB_VALID_LE_STATES }, 578 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK | 579 BTUSB_WIDEBAND_SPEECH | 580 BTUSB_VALID_LE_STATES }, 581 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 582 BTUSB_WIDEBAND_SPEECH | 583 BTUSB_VALID_LE_STATES }, 584 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | 585 BTUSB_WIDEBAND_SPEECH | 586 BTUSB_VALID_LE_STATES }, 587 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | 588 BTUSB_WIDEBAND_SPEECH | 589 BTUSB_VALID_LE_STATES }, 590 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK | 591 BTUSB_WIDEBAND_SPEECH | 592 BTUSB_VALID_LE_STATES }, 593 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK | 594 BTUSB_WIDEBAND_SPEECH | 595 BTUSB_VALID_LE_STATES }, 596 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK | 597 BTUSB_WIDEBAND_SPEECH | 598 BTUSB_VALID_LE_STATES }, 599 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK | 600 BTUSB_WIDEBAND_SPEECH | 601 BTUSB_VALID_LE_STATES }, 602 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | 603 BTUSB_WIDEBAND_SPEECH | 604 BTUSB_VALID_LE_STATES }, 605 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK | 606 BTUSB_WIDEBAND_SPEECH | 607 BTUSB_VALID_LE_STATES }, 608 609 /* MediaTek MT7922A Bluetooth devices */ 610 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK | 611 BTUSB_WIDEBAND_SPEECH | 612 BTUSB_VALID_LE_STATES }, 613 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK | 614 BTUSB_WIDEBAND_SPEECH | 615 BTUSB_VALID_LE_STATES }, 616 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | 617 BTUSB_WIDEBAND_SPEECH | 618 BTUSB_VALID_LE_STATES }, 619 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK | 620 BTUSB_WIDEBAND_SPEECH | 621 BTUSB_VALID_LE_STATES }, 622 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK | 623 BTUSB_WIDEBAND_SPEECH | 624 BTUSB_VALID_LE_STATES }, 625 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK | 626 BTUSB_WIDEBAND_SPEECH | 627 BTUSB_VALID_LE_STATES }, 628 629 /* Additional Realtek 8723AE Bluetooth devices */ 630 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 631 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 632 633 /* Additional Realtek 8723BE Bluetooth devices */ 634 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 635 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 636 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK }, 637 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 638 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 639 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 640 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 641 642 /* Additional Realtek 8723BU Bluetooth devices */ 643 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 644 645 /* Additional Realtek 8723DE Bluetooth devices */ 646 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 647 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 648 649 /* Additional Realtek 8761BUV Bluetooth devices */ 650 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK | 651 BTUSB_WIDEBAND_SPEECH }, 652 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | 653 BTUSB_WIDEBAND_SPEECH }, 654 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK | 655 BTUSB_WIDEBAND_SPEECH }, 656 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK | 657 BTUSB_WIDEBAND_SPEECH }, 658 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK | 659 BTUSB_WIDEBAND_SPEECH }, 660 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK | 661 BTUSB_WIDEBAND_SPEECH }, 662 663 /* Additional Realtek 8821AE Bluetooth devices */ 664 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 665 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 666 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 667 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 668 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 669 670 /* Additional Realtek 8822BE Bluetooth devices */ 671 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 672 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 673 674 /* Additional Realtek 8822CE Bluetooth devices */ 675 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | 676 BTUSB_WIDEBAND_SPEECH }, 677 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | 678 BTUSB_WIDEBAND_SPEECH }, 679 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | 680 BTUSB_WIDEBAND_SPEECH }, 681 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | 682 BTUSB_WIDEBAND_SPEECH }, 683 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | 684 BTUSB_WIDEBAND_SPEECH }, 685 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | 686 BTUSB_WIDEBAND_SPEECH }, 687 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | 688 BTUSB_WIDEBAND_SPEECH }, 689 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | 690 BTUSB_WIDEBAND_SPEECH }, 691 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | 692 BTUSB_WIDEBAND_SPEECH }, 693 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | 694 BTUSB_WIDEBAND_SPEECH }, 695 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | 696 BTUSB_WIDEBAND_SPEECH }, 697 698 /* Actions Semiconductor ATS2851 based devices */ 699 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI }, 700 701 /* Silicon Wave based devices */ 702 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 703 704 { } /* Terminating entry */ 705 }; 706 707 /* The Bluetooth USB module build into some devices needs to be reset on resume, 708 * this is a problem with the platform (likely shutting off all power) not with 709 * the module itself. So we use a DMI list to match known broken platforms. 710 */ 711 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 712 { 713 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 714 .matches = { 715 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 716 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 717 }, 718 }, 719 { 720 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 721 .matches = { 722 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 723 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 724 }, 725 }, 726 { 727 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 728 .matches = { 729 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 730 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 731 }, 732 }, 733 {} 734 }; 735 736 struct qca_dump_info { 737 /* fields for dump collection */ 738 u16 id_vendor; 739 u16 id_product; 740 u32 fw_version; 741 u32 controller_id; 742 u32 ram_dump_size; 743 u16 ram_dump_seqno; 744 }; 745 746 #define BTUSB_MAX_ISOC_FRAMES 10 747 748 #define BTUSB_INTR_RUNNING 0 749 #define BTUSB_BULK_RUNNING 1 750 #define BTUSB_ISOC_RUNNING 2 751 #define BTUSB_SUSPENDING 3 752 #define BTUSB_DID_ISO_RESUME 4 753 #define BTUSB_BOOTLOADER 5 754 #define BTUSB_DOWNLOADING 6 755 #define BTUSB_FIRMWARE_LOADED 7 756 #define BTUSB_FIRMWARE_FAILED 8 757 #define BTUSB_BOOTING 9 758 #define BTUSB_DIAG_RUNNING 10 759 #define BTUSB_OOB_WAKE_ENABLED 11 760 #define BTUSB_HW_RESET_ACTIVE 12 761 #define BTUSB_TX_WAIT_VND_EVT 13 762 #define BTUSB_WAKEUP_AUTOSUSPEND 14 763 #define BTUSB_USE_ALT3_FOR_WBS 15 764 #define BTUSB_ALT6_CONTINUOUS_TX 16 765 #define BTUSB_HW_SSR_ACTIVE 17 766 767 struct btusb_data { 768 struct hci_dev *hdev; 769 struct usb_device *udev; 770 struct usb_interface *intf; 771 struct usb_interface *isoc; 772 struct usb_interface *diag; 773 unsigned isoc_ifnum; 774 775 unsigned long flags; 776 777 bool poll_sync; 778 int intr_interval; 779 struct work_struct work; 780 struct work_struct waker; 781 struct delayed_work rx_work; 782 783 struct sk_buff_head acl_q; 784 785 struct usb_anchor deferred; 786 struct usb_anchor tx_anchor; 787 int tx_in_flight; 788 spinlock_t txlock; 789 790 struct usb_anchor intr_anchor; 791 struct usb_anchor bulk_anchor; 792 struct usb_anchor isoc_anchor; 793 struct usb_anchor diag_anchor; 794 struct usb_anchor ctrl_anchor; 795 spinlock_t rxlock; 796 797 struct sk_buff *evt_skb; 798 struct sk_buff *acl_skb; 799 struct sk_buff *sco_skb; 800 801 struct usb_endpoint_descriptor *intr_ep; 802 struct usb_endpoint_descriptor *bulk_tx_ep; 803 struct usb_endpoint_descriptor *bulk_rx_ep; 804 struct usb_endpoint_descriptor *isoc_tx_ep; 805 struct usb_endpoint_descriptor *isoc_rx_ep; 806 struct usb_endpoint_descriptor *diag_tx_ep; 807 struct usb_endpoint_descriptor *diag_rx_ep; 808 809 struct gpio_desc *reset_gpio; 810 811 __u8 cmdreq_type; 812 __u8 cmdreq; 813 814 unsigned int sco_num; 815 unsigned int air_mode; 816 bool usb_alt6_packet_flow; 817 int isoc_altsetting; 818 int suspend_count; 819 820 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 821 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); 822 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 823 824 int (*setup_on_usb)(struct hci_dev *hdev); 825 826 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 827 unsigned cmd_timeout_cnt; 828 829 struct qca_dump_info qca_dump; 830 }; 831 832 static void btusb_reset(struct hci_dev *hdev) 833 { 834 struct btusb_data *data; 835 int err; 836 837 if (hdev->reset) { 838 hdev->reset(hdev); 839 return; 840 } 841 842 data = hci_get_drvdata(hdev); 843 /* This is not an unbalanced PM reference since the device will reset */ 844 err = usb_autopm_get_interface(data->intf); 845 if (err) { 846 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err); 847 return; 848 } 849 850 bt_dev_err(hdev, "Resetting usb device."); 851 usb_queue_reset_device(data->intf); 852 } 853 854 static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 855 { 856 struct btusb_data *data = hci_get_drvdata(hdev); 857 struct gpio_desc *reset_gpio = data->reset_gpio; 858 859 if (++data->cmd_timeout_cnt < 5) 860 return; 861 862 if (!reset_gpio) { 863 btusb_reset(hdev); 864 return; 865 } 866 867 /* 868 * Toggle the hard reset line if the platform provides one. The reset 869 * is going to yank the device off the USB and then replug. So doing 870 * once is enough. The cleanup is handled correctly on the way out 871 * (standard USB disconnect), and the new device is detected cleanly 872 * and bound to the driver again like it should be. 873 */ 874 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 875 bt_dev_err(hdev, "last reset failed? Not resetting again"); 876 return; 877 } 878 879 bt_dev_err(hdev, "Initiating HW reset via gpio"); 880 gpiod_set_value_cansleep(reset_gpio, 1); 881 msleep(100); 882 gpiod_set_value_cansleep(reset_gpio, 0); 883 } 884 885 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) 886 { 887 struct btusb_data *data = hci_get_drvdata(hdev); 888 struct gpio_desc *reset_gpio = data->reset_gpio; 889 890 if (++data->cmd_timeout_cnt < 5) 891 return; 892 893 if (!reset_gpio) { 894 btusb_reset(hdev); 895 return; 896 } 897 898 /* Toggle the hard reset line. The Realtek device is going to 899 * yank itself off the USB and then replug. The cleanup is handled 900 * correctly on the way out (standard USB disconnect), and the new 901 * device is detected cleanly and bound to the driver again like 902 * it should be. 903 */ 904 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 905 bt_dev_err(hdev, "last reset failed? Not resetting again"); 906 return; 907 } 908 909 bt_dev_err(hdev, "Reset Realtek device via gpio"); 910 gpiod_set_value_cansleep(reset_gpio, 1); 911 msleep(200); 912 gpiod_set_value_cansleep(reset_gpio, 0); 913 } 914 915 static void btusb_qca_cmd_timeout(struct hci_dev *hdev) 916 { 917 struct btusb_data *data = hci_get_drvdata(hdev); 918 struct gpio_desc *reset_gpio = data->reset_gpio; 919 920 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) { 921 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout"); 922 return; 923 } 924 925 if (++data->cmd_timeout_cnt < 5) 926 return; 927 928 if (reset_gpio) { 929 bt_dev_err(hdev, "Reset qca device via bt_en gpio"); 930 931 /* Toggle the hard reset line. The qca bt device is going to 932 * yank itself off the USB and then replug. The cleanup is handled 933 * correctly on the way out (standard USB disconnect), and the new 934 * device is detected cleanly and bound to the driver again like 935 * it should be. 936 */ 937 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 938 bt_dev_err(hdev, "last reset failed? Not resetting again"); 939 return; 940 } 941 942 gpiod_set_value_cansleep(reset_gpio, 0); 943 msleep(200); 944 gpiod_set_value_cansleep(reset_gpio, 1); 945 946 return; 947 } 948 949 btusb_reset(hdev); 950 } 951 952 static inline void btusb_free_frags(struct btusb_data *data) 953 { 954 unsigned long flags; 955 956 spin_lock_irqsave(&data->rxlock, flags); 957 958 dev_kfree_skb_irq(data->evt_skb); 959 data->evt_skb = NULL; 960 961 dev_kfree_skb_irq(data->acl_skb); 962 data->acl_skb = NULL; 963 964 dev_kfree_skb_irq(data->sco_skb); 965 data->sco_skb = NULL; 966 967 spin_unlock_irqrestore(&data->rxlock, flags); 968 } 969 970 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb) 971 { 972 if (data->intr_interval) { 973 /* Trigger dequeue immediatelly if an event is received */ 974 schedule_delayed_work(&data->rx_work, 0); 975 } 976 977 return data->recv_event(data->hdev, skb); 978 } 979 980 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 981 { 982 struct sk_buff *skb; 983 unsigned long flags; 984 int err = 0; 985 986 spin_lock_irqsave(&data->rxlock, flags); 987 skb = data->evt_skb; 988 989 while (count) { 990 int len; 991 992 if (!skb) { 993 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 994 if (!skb) { 995 err = -ENOMEM; 996 break; 997 } 998 999 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1000 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 1001 } 1002 1003 len = min_t(uint, hci_skb_expect(skb), count); 1004 skb_put_data(skb, buffer, len); 1005 1006 count -= len; 1007 buffer += len; 1008 hci_skb_expect(skb) -= len; 1009 1010 if (skb->len == HCI_EVENT_HDR_SIZE) { 1011 /* Complete event header */ 1012 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 1013 1014 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1015 kfree_skb(skb); 1016 skb = NULL; 1017 1018 err = -EILSEQ; 1019 break; 1020 } 1021 } 1022 1023 if (!hci_skb_expect(skb)) { 1024 /* Complete frame */ 1025 btusb_recv_event(data, skb); 1026 skb = NULL; 1027 } 1028 } 1029 1030 data->evt_skb = skb; 1031 spin_unlock_irqrestore(&data->rxlock, flags); 1032 1033 return err; 1034 } 1035 1036 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb) 1037 { 1038 /* Only queue ACL packet if intr_interval is set as it means 1039 * force_poll_sync has been enabled. 1040 */ 1041 if (!data->intr_interval) 1042 return data->recv_acl(data->hdev, skb); 1043 1044 skb_queue_tail(&data->acl_q, skb); 1045 schedule_delayed_work(&data->rx_work, data->intr_interval); 1046 1047 return 0; 1048 } 1049 1050 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 1051 { 1052 struct sk_buff *skb; 1053 unsigned long flags; 1054 int err = 0; 1055 1056 spin_lock_irqsave(&data->rxlock, flags); 1057 skb = data->acl_skb; 1058 1059 while (count) { 1060 int len; 1061 1062 if (!skb) { 1063 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 1064 if (!skb) { 1065 err = -ENOMEM; 1066 break; 1067 } 1068 1069 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 1070 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 1071 } 1072 1073 len = min_t(uint, hci_skb_expect(skb), count); 1074 skb_put_data(skb, buffer, len); 1075 1076 count -= len; 1077 buffer += len; 1078 hci_skb_expect(skb) -= len; 1079 1080 if (skb->len == HCI_ACL_HDR_SIZE) { 1081 __le16 dlen = hci_acl_hdr(skb)->dlen; 1082 1083 /* Complete ACL header */ 1084 hci_skb_expect(skb) = __le16_to_cpu(dlen); 1085 1086 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 1087 kfree_skb(skb); 1088 skb = NULL; 1089 1090 err = -EILSEQ; 1091 break; 1092 } 1093 } 1094 1095 if (!hci_skb_expect(skb)) { 1096 /* Complete frame */ 1097 btusb_recv_acl(data, skb); 1098 skb = NULL; 1099 } 1100 } 1101 1102 data->acl_skb = skb; 1103 spin_unlock_irqrestore(&data->rxlock, flags); 1104 1105 return err; 1106 } 1107 1108 static bool btusb_validate_sco_handle(struct hci_dev *hdev, 1109 struct hci_sco_hdr *hdr) 1110 { 1111 __u16 handle; 1112 1113 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) 1114 // Can't validate, userspace controls everything. 1115 return true; 1116 1117 /* 1118 * USB isochronous transfers are not designed to be reliable and may 1119 * lose fragments. When this happens, the next first fragment 1120 * encountered might actually be a continuation fragment. 1121 * Validate the handle to detect it and drop it, or else the upper 1122 * layer will get garbage for a while. 1123 */ 1124 1125 handle = hci_handle(__le16_to_cpu(hdr->handle)); 1126 1127 switch (hci_conn_lookup_type(hdev, handle)) { 1128 case SCO_LINK: 1129 case ESCO_LINK: 1130 return true; 1131 default: 1132 return false; 1133 } 1134 } 1135 1136 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 1137 { 1138 struct sk_buff *skb; 1139 unsigned long flags; 1140 int err = 0; 1141 1142 spin_lock_irqsave(&data->rxlock, flags); 1143 skb = data->sco_skb; 1144 1145 while (count) { 1146 int len; 1147 1148 if (!skb) { 1149 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 1150 if (!skb) { 1151 err = -ENOMEM; 1152 break; 1153 } 1154 1155 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 1156 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 1157 } 1158 1159 len = min_t(uint, hci_skb_expect(skb), count); 1160 skb_put_data(skb, buffer, len); 1161 1162 count -= len; 1163 buffer += len; 1164 hci_skb_expect(skb) -= len; 1165 1166 if (skb->len == HCI_SCO_HDR_SIZE) { 1167 /* Complete SCO header */ 1168 struct hci_sco_hdr *hdr = hci_sco_hdr(skb); 1169 1170 hci_skb_expect(skb) = hdr->dlen; 1171 1172 if (skb_tailroom(skb) < hci_skb_expect(skb) || 1173 !btusb_validate_sco_handle(data->hdev, hdr)) { 1174 kfree_skb(skb); 1175 skb = NULL; 1176 1177 err = -EILSEQ; 1178 break; 1179 } 1180 } 1181 1182 if (!hci_skb_expect(skb)) { 1183 /* Complete frame */ 1184 hci_recv_frame(data->hdev, skb); 1185 skb = NULL; 1186 } 1187 } 1188 1189 data->sco_skb = skb; 1190 spin_unlock_irqrestore(&data->rxlock, flags); 1191 1192 return err; 1193 } 1194 1195 static void btusb_intr_complete(struct urb *urb) 1196 { 1197 struct hci_dev *hdev = urb->context; 1198 struct btusb_data *data = hci_get_drvdata(hdev); 1199 int err; 1200 1201 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1202 urb->actual_length); 1203 1204 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1205 return; 1206 1207 if (urb->status == 0) { 1208 hdev->stat.byte_rx += urb->actual_length; 1209 1210 if (btusb_recv_intr(data, urb->transfer_buffer, 1211 urb->actual_length) < 0) { 1212 bt_dev_err(hdev, "corrupted event packet"); 1213 hdev->stat.err_rx++; 1214 } 1215 } else if (urb->status == -ENOENT) { 1216 /* Avoid suspend failed when usb_kill_urb */ 1217 return; 1218 } 1219 1220 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 1221 return; 1222 1223 usb_mark_last_busy(data->udev); 1224 usb_anchor_urb(urb, &data->intr_anchor); 1225 1226 err = usb_submit_urb(urb, GFP_ATOMIC); 1227 if (err < 0) { 1228 /* -EPERM: urb is being killed; 1229 * -ENODEV: device got disconnected 1230 */ 1231 if (err != -EPERM && err != -ENODEV) 1232 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1233 urb, -err); 1234 if (err != -EPERM) 1235 hci_cmd_sync_cancel(hdev, -err); 1236 usb_unanchor_urb(urb); 1237 } 1238 } 1239 1240 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 1241 { 1242 struct btusb_data *data = hci_get_drvdata(hdev); 1243 struct urb *urb; 1244 unsigned char *buf; 1245 unsigned int pipe; 1246 int err, size; 1247 1248 BT_DBG("%s", hdev->name); 1249 1250 if (!data->intr_ep) 1251 return -ENODEV; 1252 1253 urb = usb_alloc_urb(0, mem_flags); 1254 if (!urb) 1255 return -ENOMEM; 1256 1257 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 1258 1259 buf = kmalloc(size, mem_flags); 1260 if (!buf) { 1261 usb_free_urb(urb); 1262 return -ENOMEM; 1263 } 1264 1265 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 1266 1267 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 1268 btusb_intr_complete, hdev, data->intr_ep->bInterval); 1269 1270 urb->transfer_flags |= URB_FREE_BUFFER; 1271 1272 usb_anchor_urb(urb, &data->intr_anchor); 1273 1274 err = usb_submit_urb(urb, mem_flags); 1275 if (err < 0) { 1276 if (err != -EPERM && err != -ENODEV) 1277 bt_dev_err(hdev, "urb %p submission failed (%d)", 1278 urb, -err); 1279 if (err != -EPERM) 1280 hci_cmd_sync_cancel(hdev, -err); 1281 usb_unanchor_urb(urb); 1282 } 1283 1284 /* Only initialize intr_interval if URB poll sync is enabled */ 1285 if (!data->poll_sync) 1286 goto done; 1287 1288 /* The units are frames (milliseconds) for full and low speed devices, 1289 * and microframes (1/8 millisecond) for highspeed and SuperSpeed 1290 * devices. 1291 * 1292 * This is done once on open/resume so it shouldn't change even if 1293 * force_poll_sync changes. 1294 */ 1295 switch (urb->dev->speed) { 1296 case USB_SPEED_SUPER_PLUS: 1297 case USB_SPEED_SUPER: /* units are 125us */ 1298 data->intr_interval = usecs_to_jiffies(urb->interval * 125); 1299 break; 1300 default: 1301 data->intr_interval = msecs_to_jiffies(urb->interval); 1302 break; 1303 } 1304 1305 done: 1306 usb_free_urb(urb); 1307 1308 return err; 1309 } 1310 1311 static void btusb_bulk_complete(struct urb *urb) 1312 { 1313 struct hci_dev *hdev = urb->context; 1314 struct btusb_data *data = hci_get_drvdata(hdev); 1315 int err; 1316 1317 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1318 urb->actual_length); 1319 1320 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1321 return; 1322 1323 if (urb->status == 0) { 1324 hdev->stat.byte_rx += urb->actual_length; 1325 1326 if (data->recv_bulk(data, urb->transfer_buffer, 1327 urb->actual_length) < 0) { 1328 bt_dev_err(hdev, "corrupted ACL packet"); 1329 hdev->stat.err_rx++; 1330 } 1331 } else if (urb->status == -ENOENT) { 1332 /* Avoid suspend failed when usb_kill_urb */ 1333 return; 1334 } 1335 1336 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 1337 return; 1338 1339 usb_anchor_urb(urb, &data->bulk_anchor); 1340 usb_mark_last_busy(data->udev); 1341 1342 err = usb_submit_urb(urb, GFP_ATOMIC); 1343 if (err < 0) { 1344 /* -EPERM: urb is being killed; 1345 * -ENODEV: device got disconnected 1346 */ 1347 if (err != -EPERM && err != -ENODEV) 1348 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1349 urb, -err); 1350 usb_unanchor_urb(urb); 1351 } 1352 } 1353 1354 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 1355 { 1356 struct btusb_data *data = hci_get_drvdata(hdev); 1357 struct urb *urb; 1358 unsigned char *buf; 1359 unsigned int pipe; 1360 int err, size = HCI_MAX_FRAME_SIZE; 1361 1362 BT_DBG("%s", hdev->name); 1363 1364 if (!data->bulk_rx_ep) 1365 return -ENODEV; 1366 1367 urb = usb_alloc_urb(0, mem_flags); 1368 if (!urb) 1369 return -ENOMEM; 1370 1371 buf = kmalloc(size, mem_flags); 1372 if (!buf) { 1373 usb_free_urb(urb); 1374 return -ENOMEM; 1375 } 1376 1377 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 1378 1379 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1380 btusb_bulk_complete, hdev); 1381 1382 urb->transfer_flags |= URB_FREE_BUFFER; 1383 1384 usb_mark_last_busy(data->udev); 1385 usb_anchor_urb(urb, &data->bulk_anchor); 1386 1387 err = usb_submit_urb(urb, mem_flags); 1388 if (err < 0) { 1389 if (err != -EPERM && err != -ENODEV) 1390 bt_dev_err(hdev, "urb %p submission failed (%d)", 1391 urb, -err); 1392 usb_unanchor_urb(urb); 1393 } 1394 1395 usb_free_urb(urb); 1396 1397 return err; 1398 } 1399 1400 static void btusb_isoc_complete(struct urb *urb) 1401 { 1402 struct hci_dev *hdev = urb->context; 1403 struct btusb_data *data = hci_get_drvdata(hdev); 1404 int i, err; 1405 1406 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1407 urb->actual_length); 1408 1409 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1410 return; 1411 1412 if (urb->status == 0) { 1413 for (i = 0; i < urb->number_of_packets; i++) { 1414 unsigned int offset = urb->iso_frame_desc[i].offset; 1415 unsigned int length = urb->iso_frame_desc[i].actual_length; 1416 1417 if (urb->iso_frame_desc[i].status) 1418 continue; 1419 1420 hdev->stat.byte_rx += length; 1421 1422 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 1423 length) < 0) { 1424 bt_dev_err(hdev, "corrupted SCO packet"); 1425 hdev->stat.err_rx++; 1426 } 1427 } 1428 } else if (urb->status == -ENOENT) { 1429 /* Avoid suspend failed when usb_kill_urb */ 1430 return; 1431 } 1432 1433 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 1434 return; 1435 1436 usb_anchor_urb(urb, &data->isoc_anchor); 1437 1438 err = usb_submit_urb(urb, GFP_ATOMIC); 1439 if (err < 0) { 1440 /* -EPERM: urb is being killed; 1441 * -ENODEV: device got disconnected 1442 */ 1443 if (err != -EPERM && err != -ENODEV) 1444 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1445 urb, -err); 1446 usb_unanchor_urb(urb); 1447 } 1448 } 1449 1450 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, 1451 int mtu, struct btusb_data *data) 1452 { 1453 int i = 0, offset = 0; 1454 unsigned int interval; 1455 1456 BT_DBG("len %d mtu %d", len, mtu); 1457 1458 /* For mSBC ALT 6 settings some chips need to transmit the data 1459 * continuously without the zero length of USB packets. 1460 */ 1461 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags)) 1462 goto ignore_usb_alt6_packet_flow; 1463 1464 /* For mSBC ALT 6 setting the host will send the packet at continuous 1465 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting 1466 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. 1467 * To maintain the rate we send 63bytes of usb packets alternatively for 1468 * 7ms and 8ms to maintain the rate as 7.5ms. 1469 */ 1470 if (data->usb_alt6_packet_flow) { 1471 interval = 7; 1472 data->usb_alt6_packet_flow = false; 1473 } else { 1474 interval = 6; 1475 data->usb_alt6_packet_flow = true; 1476 } 1477 1478 for (i = 0; i < interval; i++) { 1479 urb->iso_frame_desc[i].offset = offset; 1480 urb->iso_frame_desc[i].length = offset; 1481 } 1482 1483 ignore_usb_alt6_packet_flow: 1484 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1485 urb->iso_frame_desc[i].offset = offset; 1486 urb->iso_frame_desc[i].length = len; 1487 i++; 1488 } 1489 1490 urb->number_of_packets = i; 1491 } 1492 1493 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 1494 { 1495 int i, offset = 0; 1496 1497 BT_DBG("len %d mtu %d", len, mtu); 1498 1499 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 1500 i++, offset += mtu, len -= mtu) { 1501 urb->iso_frame_desc[i].offset = offset; 1502 urb->iso_frame_desc[i].length = mtu; 1503 } 1504 1505 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 1506 urb->iso_frame_desc[i].offset = offset; 1507 urb->iso_frame_desc[i].length = len; 1508 i++; 1509 } 1510 1511 urb->number_of_packets = i; 1512 } 1513 1514 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 1515 { 1516 struct btusb_data *data = hci_get_drvdata(hdev); 1517 struct urb *urb; 1518 unsigned char *buf; 1519 unsigned int pipe; 1520 int err, size; 1521 1522 BT_DBG("%s", hdev->name); 1523 1524 if (!data->isoc_rx_ep) 1525 return -ENODEV; 1526 1527 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 1528 if (!urb) 1529 return -ENOMEM; 1530 1531 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 1532 BTUSB_MAX_ISOC_FRAMES; 1533 1534 buf = kmalloc(size, mem_flags); 1535 if (!buf) { 1536 usb_free_urb(urb); 1537 return -ENOMEM; 1538 } 1539 1540 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 1541 1542 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 1543 hdev, data->isoc_rx_ep->bInterval); 1544 1545 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1546 1547 __fill_isoc_descriptor(urb, size, 1548 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1549 1550 usb_anchor_urb(urb, &data->isoc_anchor); 1551 1552 err = usb_submit_urb(urb, mem_flags); 1553 if (err < 0) { 1554 if (err != -EPERM && err != -ENODEV) 1555 bt_dev_err(hdev, "urb %p submission failed (%d)", 1556 urb, -err); 1557 usb_unanchor_urb(urb); 1558 } 1559 1560 usb_free_urb(urb); 1561 1562 return err; 1563 } 1564 1565 static void btusb_diag_complete(struct urb *urb) 1566 { 1567 struct hci_dev *hdev = urb->context; 1568 struct btusb_data *data = hci_get_drvdata(hdev); 1569 int err; 1570 1571 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1572 urb->actual_length); 1573 1574 if (urb->status == 0) { 1575 struct sk_buff *skb; 1576 1577 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1578 if (skb) { 1579 skb_put_data(skb, urb->transfer_buffer, 1580 urb->actual_length); 1581 hci_recv_diag(hdev, skb); 1582 } 1583 } else if (urb->status == -ENOENT) { 1584 /* Avoid suspend failed when usb_kill_urb */ 1585 return; 1586 } 1587 1588 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1589 return; 1590 1591 usb_anchor_urb(urb, &data->diag_anchor); 1592 usb_mark_last_busy(data->udev); 1593 1594 err = usb_submit_urb(urb, GFP_ATOMIC); 1595 if (err < 0) { 1596 /* -EPERM: urb is being killed; 1597 * -ENODEV: device got disconnected 1598 */ 1599 if (err != -EPERM && err != -ENODEV) 1600 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1601 urb, -err); 1602 usb_unanchor_urb(urb); 1603 } 1604 } 1605 1606 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1607 { 1608 struct btusb_data *data = hci_get_drvdata(hdev); 1609 struct urb *urb; 1610 unsigned char *buf; 1611 unsigned int pipe; 1612 int err, size = HCI_MAX_FRAME_SIZE; 1613 1614 BT_DBG("%s", hdev->name); 1615 1616 if (!data->diag_rx_ep) 1617 return -ENODEV; 1618 1619 urb = usb_alloc_urb(0, mem_flags); 1620 if (!urb) 1621 return -ENOMEM; 1622 1623 buf = kmalloc(size, mem_flags); 1624 if (!buf) { 1625 usb_free_urb(urb); 1626 return -ENOMEM; 1627 } 1628 1629 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1630 1631 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1632 btusb_diag_complete, hdev); 1633 1634 urb->transfer_flags |= URB_FREE_BUFFER; 1635 1636 usb_mark_last_busy(data->udev); 1637 usb_anchor_urb(urb, &data->diag_anchor); 1638 1639 err = usb_submit_urb(urb, mem_flags); 1640 if (err < 0) { 1641 if (err != -EPERM && err != -ENODEV) 1642 bt_dev_err(hdev, "urb %p submission failed (%d)", 1643 urb, -err); 1644 usb_unanchor_urb(urb); 1645 } 1646 1647 usb_free_urb(urb); 1648 1649 return err; 1650 } 1651 1652 static void btusb_tx_complete(struct urb *urb) 1653 { 1654 struct sk_buff *skb = urb->context; 1655 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1656 struct btusb_data *data = hci_get_drvdata(hdev); 1657 unsigned long flags; 1658 1659 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1660 urb->actual_length); 1661 1662 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1663 goto done; 1664 1665 if (!urb->status) { 1666 hdev->stat.byte_tx += urb->transfer_buffer_length; 1667 } else { 1668 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT) 1669 hci_cmd_sync_cancel(hdev, -urb->status); 1670 hdev->stat.err_tx++; 1671 } 1672 1673 done: 1674 spin_lock_irqsave(&data->txlock, flags); 1675 data->tx_in_flight--; 1676 spin_unlock_irqrestore(&data->txlock, flags); 1677 1678 kfree(urb->setup_packet); 1679 1680 kfree_skb(skb); 1681 } 1682 1683 static void btusb_isoc_tx_complete(struct urb *urb) 1684 { 1685 struct sk_buff *skb = urb->context; 1686 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1687 1688 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1689 urb->actual_length); 1690 1691 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1692 goto done; 1693 1694 if (!urb->status) 1695 hdev->stat.byte_tx += urb->transfer_buffer_length; 1696 else 1697 hdev->stat.err_tx++; 1698 1699 done: 1700 kfree(urb->setup_packet); 1701 1702 kfree_skb(skb); 1703 } 1704 1705 static int btusb_open(struct hci_dev *hdev) 1706 { 1707 struct btusb_data *data = hci_get_drvdata(hdev); 1708 int err; 1709 1710 BT_DBG("%s", hdev->name); 1711 1712 err = usb_autopm_get_interface(data->intf); 1713 if (err < 0) 1714 return err; 1715 1716 /* Patching USB firmware files prior to starting any URBs of HCI path 1717 * It is more safe to use USB bulk channel for downloading USB patch 1718 */ 1719 if (data->setup_on_usb) { 1720 err = data->setup_on_usb(hdev); 1721 if (err < 0) 1722 goto setup_fail; 1723 } 1724 1725 data->intf->needs_remote_wakeup = 1; 1726 1727 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1728 goto done; 1729 1730 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1731 if (err < 0) 1732 goto failed; 1733 1734 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1735 if (err < 0) { 1736 usb_kill_anchored_urbs(&data->intr_anchor); 1737 goto failed; 1738 } 1739 1740 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1741 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1742 1743 if (data->diag) { 1744 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1745 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1746 } 1747 1748 done: 1749 usb_autopm_put_interface(data->intf); 1750 return 0; 1751 1752 failed: 1753 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1754 setup_fail: 1755 usb_autopm_put_interface(data->intf); 1756 return err; 1757 } 1758 1759 static void btusb_stop_traffic(struct btusb_data *data) 1760 { 1761 usb_kill_anchored_urbs(&data->intr_anchor); 1762 usb_kill_anchored_urbs(&data->bulk_anchor); 1763 usb_kill_anchored_urbs(&data->isoc_anchor); 1764 usb_kill_anchored_urbs(&data->diag_anchor); 1765 usb_kill_anchored_urbs(&data->ctrl_anchor); 1766 } 1767 1768 static int btusb_close(struct hci_dev *hdev) 1769 { 1770 struct btusb_data *data = hci_get_drvdata(hdev); 1771 int err; 1772 1773 BT_DBG("%s", hdev->name); 1774 1775 cancel_delayed_work(&data->rx_work); 1776 cancel_work_sync(&data->work); 1777 cancel_work_sync(&data->waker); 1778 1779 skb_queue_purge(&data->acl_q); 1780 1781 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1782 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1783 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1784 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1785 1786 btusb_stop_traffic(data); 1787 btusb_free_frags(data); 1788 1789 err = usb_autopm_get_interface(data->intf); 1790 if (err < 0) 1791 goto failed; 1792 1793 data->intf->needs_remote_wakeup = 0; 1794 1795 /* Enable remote wake up for auto-suspend */ 1796 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) 1797 data->intf->needs_remote_wakeup = 1; 1798 1799 usb_autopm_put_interface(data->intf); 1800 1801 failed: 1802 usb_scuttle_anchored_urbs(&data->deferred); 1803 return 0; 1804 } 1805 1806 static int btusb_flush(struct hci_dev *hdev) 1807 { 1808 struct btusb_data *data = hci_get_drvdata(hdev); 1809 1810 BT_DBG("%s", hdev->name); 1811 1812 cancel_delayed_work(&data->rx_work); 1813 1814 skb_queue_purge(&data->acl_q); 1815 1816 usb_kill_anchored_urbs(&data->tx_anchor); 1817 btusb_free_frags(data); 1818 1819 return 0; 1820 } 1821 1822 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1823 { 1824 struct btusb_data *data = hci_get_drvdata(hdev); 1825 struct usb_ctrlrequest *dr; 1826 struct urb *urb; 1827 unsigned int pipe; 1828 1829 urb = usb_alloc_urb(0, GFP_KERNEL); 1830 if (!urb) 1831 return ERR_PTR(-ENOMEM); 1832 1833 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1834 if (!dr) { 1835 usb_free_urb(urb); 1836 return ERR_PTR(-ENOMEM); 1837 } 1838 1839 dr->bRequestType = data->cmdreq_type; 1840 dr->bRequest = data->cmdreq; 1841 dr->wIndex = 0; 1842 dr->wValue = 0; 1843 dr->wLength = __cpu_to_le16(skb->len); 1844 1845 pipe = usb_sndctrlpipe(data->udev, 0x00); 1846 1847 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1848 skb->data, skb->len, btusb_tx_complete, skb); 1849 1850 skb->dev = (void *)hdev; 1851 1852 return urb; 1853 } 1854 1855 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1856 { 1857 struct btusb_data *data = hci_get_drvdata(hdev); 1858 struct urb *urb; 1859 unsigned int pipe; 1860 1861 if (!data->bulk_tx_ep) 1862 return ERR_PTR(-ENODEV); 1863 1864 urb = usb_alloc_urb(0, GFP_KERNEL); 1865 if (!urb) 1866 return ERR_PTR(-ENOMEM); 1867 1868 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1869 1870 usb_fill_bulk_urb(urb, data->udev, pipe, 1871 skb->data, skb->len, btusb_tx_complete, skb); 1872 1873 skb->dev = (void *)hdev; 1874 1875 return urb; 1876 } 1877 1878 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1879 { 1880 struct btusb_data *data = hci_get_drvdata(hdev); 1881 struct urb *urb; 1882 unsigned int pipe; 1883 1884 if (!data->isoc_tx_ep) 1885 return ERR_PTR(-ENODEV); 1886 1887 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1888 if (!urb) 1889 return ERR_PTR(-ENOMEM); 1890 1891 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1892 1893 usb_fill_int_urb(urb, data->udev, pipe, 1894 skb->data, skb->len, btusb_isoc_tx_complete, 1895 skb, data->isoc_tx_ep->bInterval); 1896 1897 urb->transfer_flags = URB_ISO_ASAP; 1898 1899 if (data->isoc_altsetting == 6) 1900 __fill_isoc_descriptor_msbc(urb, skb->len, 1901 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), 1902 data); 1903 else 1904 __fill_isoc_descriptor(urb, skb->len, 1905 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1906 skb->dev = (void *)hdev; 1907 1908 return urb; 1909 } 1910 1911 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1912 { 1913 struct btusb_data *data = hci_get_drvdata(hdev); 1914 int err; 1915 1916 usb_anchor_urb(urb, &data->tx_anchor); 1917 1918 err = usb_submit_urb(urb, GFP_KERNEL); 1919 if (err < 0) { 1920 if (err != -EPERM && err != -ENODEV) 1921 bt_dev_err(hdev, "urb %p submission failed (%d)", 1922 urb, -err); 1923 kfree(urb->setup_packet); 1924 usb_unanchor_urb(urb); 1925 } else { 1926 usb_mark_last_busy(data->udev); 1927 } 1928 1929 usb_free_urb(urb); 1930 return err; 1931 } 1932 1933 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1934 { 1935 struct btusb_data *data = hci_get_drvdata(hdev); 1936 unsigned long flags; 1937 bool suspending; 1938 1939 spin_lock_irqsave(&data->txlock, flags); 1940 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1941 if (!suspending) 1942 data->tx_in_flight++; 1943 spin_unlock_irqrestore(&data->txlock, flags); 1944 1945 if (!suspending) 1946 return submit_tx_urb(hdev, urb); 1947 1948 usb_anchor_urb(urb, &data->deferred); 1949 schedule_work(&data->waker); 1950 1951 usb_free_urb(urb); 1952 return 0; 1953 } 1954 1955 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1956 { 1957 struct urb *urb; 1958 1959 BT_DBG("%s", hdev->name); 1960 1961 switch (hci_skb_pkt_type(skb)) { 1962 case HCI_COMMAND_PKT: 1963 urb = alloc_ctrl_urb(hdev, skb); 1964 if (IS_ERR(urb)) 1965 return PTR_ERR(urb); 1966 1967 hdev->stat.cmd_tx++; 1968 return submit_or_queue_tx_urb(hdev, urb); 1969 1970 case HCI_ACLDATA_PKT: 1971 urb = alloc_bulk_urb(hdev, skb); 1972 if (IS_ERR(urb)) 1973 return PTR_ERR(urb); 1974 1975 hdev->stat.acl_tx++; 1976 return submit_or_queue_tx_urb(hdev, urb); 1977 1978 case HCI_SCODATA_PKT: 1979 if (hci_conn_num(hdev, SCO_LINK) < 1) 1980 return -ENODEV; 1981 1982 urb = alloc_isoc_urb(hdev, skb); 1983 if (IS_ERR(urb)) 1984 return PTR_ERR(urb); 1985 1986 hdev->stat.sco_tx++; 1987 return submit_tx_urb(hdev, urb); 1988 1989 case HCI_ISODATA_PKT: 1990 urb = alloc_bulk_urb(hdev, skb); 1991 if (IS_ERR(urb)) 1992 return PTR_ERR(urb); 1993 1994 return submit_or_queue_tx_urb(hdev, urb); 1995 } 1996 1997 return -EILSEQ; 1998 } 1999 2000 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 2001 { 2002 struct btusb_data *data = hci_get_drvdata(hdev); 2003 2004 BT_DBG("%s evt %d", hdev->name, evt); 2005 2006 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 2007 data->sco_num = hci_conn_num(hdev, SCO_LINK); 2008 data->air_mode = evt; 2009 schedule_work(&data->work); 2010 } 2011 } 2012 2013 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 2014 { 2015 struct btusb_data *data = hci_get_drvdata(hdev); 2016 struct usb_interface *intf = data->isoc; 2017 struct usb_endpoint_descriptor *ep_desc; 2018 int i, err; 2019 2020 if (!data->isoc) 2021 return -ENODEV; 2022 2023 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 2024 if (err < 0) { 2025 bt_dev_err(hdev, "setting interface failed (%d)", -err); 2026 return err; 2027 } 2028 2029 data->isoc_altsetting = altsetting; 2030 2031 data->isoc_tx_ep = NULL; 2032 data->isoc_rx_ep = NULL; 2033 2034 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2035 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2036 2037 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 2038 data->isoc_tx_ep = ep_desc; 2039 continue; 2040 } 2041 2042 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 2043 data->isoc_rx_ep = ep_desc; 2044 continue; 2045 } 2046 } 2047 2048 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 2049 bt_dev_err(hdev, "invalid SCO descriptors"); 2050 return -ENODEV; 2051 } 2052 2053 return 0; 2054 } 2055 2056 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) 2057 { 2058 struct btusb_data *data = hci_get_drvdata(hdev); 2059 int err; 2060 2061 if (data->isoc_altsetting != new_alts) { 2062 unsigned long flags; 2063 2064 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2065 usb_kill_anchored_urbs(&data->isoc_anchor); 2066 2067 /* When isochronous alternate setting needs to be 2068 * changed, because SCO connection has been added 2069 * or removed, a packet fragment may be left in the 2070 * reassembling state. This could lead to wrongly 2071 * assembled fragments. 2072 * 2073 * Clear outstanding fragment when selecting a new 2074 * alternate setting. 2075 */ 2076 spin_lock_irqsave(&data->rxlock, flags); 2077 kfree_skb(data->sco_skb); 2078 data->sco_skb = NULL; 2079 spin_unlock_irqrestore(&data->rxlock, flags); 2080 2081 err = __set_isoc_interface(hdev, new_alts); 2082 if (err < 0) 2083 return err; 2084 } 2085 2086 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2087 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 2088 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2089 else 2090 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 2091 } 2092 2093 return 0; 2094 } 2095 2096 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, 2097 int alt) 2098 { 2099 struct usb_interface *intf = data->isoc; 2100 int i; 2101 2102 BT_DBG("Looking for Alt no :%d", alt); 2103 2104 if (!intf) 2105 return NULL; 2106 2107 for (i = 0; i < intf->num_altsetting; i++) { 2108 if (intf->altsetting[i].desc.bAlternateSetting == alt) 2109 return &intf->altsetting[i]; 2110 } 2111 2112 return NULL; 2113 } 2114 2115 static void btusb_work(struct work_struct *work) 2116 { 2117 struct btusb_data *data = container_of(work, struct btusb_data, work); 2118 struct hci_dev *hdev = data->hdev; 2119 int new_alts = 0; 2120 int err; 2121 2122 if (data->sco_num > 0) { 2123 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 2124 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 2125 if (err < 0) { 2126 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2127 usb_kill_anchored_urbs(&data->isoc_anchor); 2128 return; 2129 } 2130 2131 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 2132 } 2133 2134 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { 2135 if (hdev->voice_setting & 0x0020) { 2136 static const int alts[3] = { 2, 4, 5 }; 2137 2138 new_alts = alts[data->sco_num - 1]; 2139 } else { 2140 new_alts = data->sco_num; 2141 } 2142 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { 2143 /* Bluetooth USB spec recommends alt 6 (63 bytes), but 2144 * many adapters do not support it. Alt 1 appears to 2145 * work for all adapters that do not have alt 6, and 2146 * which work with WBS at all. Some devices prefer 2147 * alt 3 (HCI payload >= 60 Bytes let air packet 2148 * data satisfy 60 bytes), requiring 2149 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 2150 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. 2151 */ 2152 if (btusb_find_altsetting(data, 6)) 2153 new_alts = 6; 2154 else if (btusb_find_altsetting(data, 3) && 2155 hdev->sco_mtu >= 72 && 2156 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) 2157 new_alts = 3; 2158 else 2159 new_alts = 1; 2160 } 2161 2162 if (btusb_switch_alt_setting(hdev, new_alts) < 0) 2163 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); 2164 } else { 2165 usb_kill_anchored_urbs(&data->isoc_anchor); 2166 2167 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags)) 2168 __set_isoc_interface(hdev, 0); 2169 2170 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 2171 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 2172 } 2173 } 2174 2175 static void btusb_waker(struct work_struct *work) 2176 { 2177 struct btusb_data *data = container_of(work, struct btusb_data, waker); 2178 int err; 2179 2180 err = usb_autopm_get_interface(data->intf); 2181 if (err < 0) 2182 return; 2183 2184 usb_autopm_put_interface(data->intf); 2185 } 2186 2187 static void btusb_rx_work(struct work_struct *work) 2188 { 2189 struct btusb_data *data = container_of(work, struct btusb_data, 2190 rx_work.work); 2191 struct sk_buff *skb; 2192 2193 /* Dequeue ACL data received during the interval */ 2194 while ((skb = skb_dequeue(&data->acl_q))) 2195 data->recv_acl(data->hdev, skb); 2196 } 2197 2198 static int btusb_setup_bcm92035(struct hci_dev *hdev) 2199 { 2200 struct sk_buff *skb; 2201 u8 val = 0x00; 2202 2203 BT_DBG("%s", hdev->name); 2204 2205 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 2206 if (IS_ERR(skb)) 2207 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 2208 else 2209 kfree_skb(skb); 2210 2211 return 0; 2212 } 2213 2214 static int btusb_setup_csr(struct hci_dev *hdev) 2215 { 2216 struct btusb_data *data = hci_get_drvdata(hdev); 2217 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); 2218 struct hci_rp_read_local_version *rp; 2219 struct sk_buff *skb; 2220 bool is_fake = false; 2221 int ret; 2222 2223 BT_DBG("%s", hdev->name); 2224 2225 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 2226 HCI_INIT_TIMEOUT); 2227 if (IS_ERR(skb)) { 2228 int err = PTR_ERR(skb); 2229 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 2230 return err; 2231 } 2232 2233 rp = skb_pull_data(skb, sizeof(*rp)); 2234 if (!rp) { 2235 bt_dev_err(hdev, "CSR: Local version length mismatch"); 2236 kfree_skb(skb); 2237 return -EIO; 2238 } 2239 2240 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x", 2241 rp->hci_ver, le16_to_cpu(rp->hci_rev)); 2242 2243 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u", 2244 rp->lmp_ver, le16_to_cpu(rp->lmp_subver), 2245 le16_to_cpu(rp->manufacturer)); 2246 2247 /* Detect a wide host of Chinese controllers that aren't CSR. 2248 * 2249 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 2250 * 2251 * The main thing they have in common is that these are really popular low-cost 2252 * options that support newer Bluetooth versions but rely on heavy VID/PID 2253 * squatting of this poor old Bluetooth 1.1 device. Even sold as such. 2254 * 2255 * We detect actual CSR devices by checking that the HCI manufacturer code 2256 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and 2257 * HCI rev values always match. As they both store the firmware number. 2258 */ 2259 if (le16_to_cpu(rp->manufacturer) != 10 || 2260 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) 2261 is_fake = true; 2262 2263 /* Known legit CSR firmware build numbers and their supported BT versions: 2264 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e 2265 * - 1.2 (0x2) -> 0x04d9, 0x0529 2266 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c 2267 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) 2268 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb 2269 * 2270 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that 2271 * support BT 1.1 only; so it's a dead giveaway when some 2272 * third-party BT 4.0 dongle reuses it. 2273 */ 2274 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && 2275 rp->hci_ver > BLUETOOTH_VER_1_1) 2276 is_fake = true; 2277 2278 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && 2279 rp->hci_ver > BLUETOOTH_VER_1_2) 2280 is_fake = true; 2281 2282 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && 2283 rp->hci_ver > BLUETOOTH_VER_2_0) 2284 is_fake = true; 2285 2286 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && 2287 rp->hci_ver > BLUETOOTH_VER_2_1) 2288 is_fake = true; 2289 2290 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && 2291 rp->hci_ver > BLUETOOTH_VER_4_0) 2292 is_fake = true; 2293 2294 /* Other clones which beat all the above checks */ 2295 else if (bcdDevice == 0x0134 && 2296 le16_to_cpu(rp->lmp_subver) == 0x0c5c && 2297 rp->hci_ver == BLUETOOTH_VER_2_0) 2298 is_fake = true; 2299 2300 if (is_fake) { 2301 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); 2302 2303 /* Generally these clones have big discrepancies between 2304 * advertised features and what's actually supported. 2305 * Probably will need to be expanded in the future; 2306 * without these the controller will lock up. 2307 */ 2308 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2309 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 2310 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks); 2311 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks); 2312 2313 /* Clear the reset quirk since this is not an actual 2314 * early Bluetooth 1.1 device from CSR. 2315 */ 2316 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2317 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2318 2319 /* 2320 * Special workaround for these BT 4.0 chip clones, and potentially more: 2321 * 2322 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012) 2323 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) 2324 * 2325 * These controllers are really messed-up. 2326 * 2327 * 1. Their bulk RX endpoint will never report any data unless 2328 * the device was suspended at least once (yes, really). 2329 * 2. They will not wakeup when autosuspended and receiving data 2330 * on their bulk RX endpoint from e.g. a keyboard or mouse 2331 * (IOW remote-wakeup support is broken for the bulk endpoint). 2332 * 2333 * To fix 1. enable runtime-suspend, force-suspend the 2334 * HCI and then wake-it up by disabling runtime-suspend. 2335 * 2336 * To fix 2. clear the HCI's can_wake flag, this way the HCI 2337 * will still be autosuspended when it is not open. 2338 * 2339 * -- 2340 * 2341 * Because these are widespread problems we prefer generic solutions; so 2342 * apply this initialization quirk to every controller that gets here, 2343 * it should be harmless. The alternative is to not work at all. 2344 */ 2345 pm_runtime_allow(&data->udev->dev); 2346 2347 ret = pm_runtime_suspend(&data->udev->dev); 2348 if (ret >= 0) 2349 msleep(200); 2350 else 2351 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround"); 2352 2353 pm_runtime_forbid(&data->udev->dev); 2354 2355 device_set_wakeup_capable(&data->udev->dev, false); 2356 2357 /* Re-enable autosuspend if this was requested */ 2358 if (enable_autosuspend) 2359 usb_enable_autosuspend(data->udev); 2360 } 2361 2362 kfree_skb(skb); 2363 2364 return 0; 2365 } 2366 2367 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 2368 { 2369 struct sk_buff *skb; 2370 struct hci_event_hdr *hdr; 2371 struct hci_ev_cmd_complete *evt; 2372 2373 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 2374 if (!skb) 2375 return -ENOMEM; 2376 2377 hdr = skb_put(skb, sizeof(*hdr)); 2378 hdr->evt = HCI_EV_CMD_COMPLETE; 2379 hdr->plen = sizeof(*evt) + 1; 2380 2381 evt = skb_put(skb, sizeof(*evt)); 2382 evt->ncmd = 0x01; 2383 evt->opcode = cpu_to_le16(opcode); 2384 2385 skb_put_u8(skb, 0x00); 2386 2387 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2388 2389 return hci_recv_frame(hdev, skb); 2390 } 2391 2392 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 2393 int count) 2394 { 2395 struct hci_dev *hdev = data->hdev; 2396 2397 /* When the device is in bootloader mode, then it can send 2398 * events via the bulk endpoint. These events are treated the 2399 * same way as the ones received from the interrupt endpoint. 2400 */ 2401 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) 2402 return btusb_recv_intr(data, buffer, count); 2403 2404 return btusb_recv_bulk(data, buffer, count); 2405 } 2406 2407 static int btusb_intel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb) 2408 { 2409 struct intel_tlv *tlv = (void *)&skb->data[5]; 2410 2411 /* The first event is always an event type TLV */ 2412 if (tlv->type != INTEL_TLV_TYPE_ID) 2413 goto recv_frame; 2414 2415 switch (tlv->val[0]) { 2416 case INTEL_TLV_SYSTEM_EXCEPTION: 2417 case INTEL_TLV_FATAL_EXCEPTION: 2418 case INTEL_TLV_DEBUG_EXCEPTION: 2419 case INTEL_TLV_TEST_EXCEPTION: 2420 /* Generate devcoredump from exception */ 2421 if (!hci_devcd_init(hdev, skb->len)) { 2422 hci_devcd_append(hdev, skb); 2423 hci_devcd_complete(hdev); 2424 } else { 2425 bt_dev_err(hdev, "Failed to generate devcoredump"); 2426 kfree_skb(skb); 2427 } 2428 return 0; 2429 default: 2430 bt_dev_err(hdev, "Invalid exception type %02X", tlv->val[0]); 2431 } 2432 2433 recv_frame: 2434 return hci_recv_frame(hdev, skb); 2435 } 2436 2437 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 2438 { 2439 struct hci_event_hdr *hdr = (void *)skb->data; 2440 const char diagnostics_hdr[] = { 0x87, 0x80, 0x03 }; 2441 2442 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 2443 hdr->plen > 0) { 2444 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 2445 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 2446 2447 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2448 switch (skb->data[2]) { 2449 case 0x02: 2450 /* When switching to the operational firmware 2451 * the device sends a vendor specific event 2452 * indicating that the bootup completed. 2453 */ 2454 btintel_bootup(hdev, ptr, len); 2455 break; 2456 case 0x06: 2457 /* When the firmware loading completes the 2458 * device sends out a vendor specific event 2459 * indicating the result of the firmware 2460 * loading. 2461 */ 2462 btintel_secure_send_result(hdev, ptr, len); 2463 break; 2464 } 2465 } 2466 2467 /* Handle all diagnostics events separately. May still call 2468 * hci_recv_frame. 2469 */ 2470 if (len >= sizeof(diagnostics_hdr) && 2471 memcmp(&skb->data[2], diagnostics_hdr, 2472 sizeof(diagnostics_hdr)) == 0) { 2473 return btusb_intel_diagnostics(hdev, skb); 2474 } 2475 } 2476 2477 return hci_recv_frame(hdev, skb); 2478 } 2479 2480 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2481 { 2482 struct urb *urb; 2483 2484 BT_DBG("%s", hdev->name); 2485 2486 switch (hci_skb_pkt_type(skb)) { 2487 case HCI_COMMAND_PKT: 2488 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { 2489 struct hci_command_hdr *cmd = (void *)skb->data; 2490 __u16 opcode = le16_to_cpu(cmd->opcode); 2491 2492 /* When in bootloader mode and the command 0xfc09 2493 * is received, it needs to be send down the 2494 * bulk endpoint. So allocate a bulk URB instead. 2495 */ 2496 if (opcode == 0xfc09) 2497 urb = alloc_bulk_urb(hdev, skb); 2498 else 2499 urb = alloc_ctrl_urb(hdev, skb); 2500 2501 /* When the 0xfc01 command is issued to boot into 2502 * the operational firmware, it will actually not 2503 * send a command complete event. To keep the flow 2504 * control working inject that event here. 2505 */ 2506 if (opcode == 0xfc01) 2507 inject_cmd_complete(hdev, opcode); 2508 } else { 2509 urb = alloc_ctrl_urb(hdev, skb); 2510 } 2511 if (IS_ERR(urb)) 2512 return PTR_ERR(urb); 2513 2514 hdev->stat.cmd_tx++; 2515 return submit_or_queue_tx_urb(hdev, urb); 2516 2517 case HCI_ACLDATA_PKT: 2518 urb = alloc_bulk_urb(hdev, skb); 2519 if (IS_ERR(urb)) 2520 return PTR_ERR(urb); 2521 2522 hdev->stat.acl_tx++; 2523 return submit_or_queue_tx_urb(hdev, urb); 2524 2525 case HCI_SCODATA_PKT: 2526 if (hci_conn_num(hdev, SCO_LINK) < 1) 2527 return -ENODEV; 2528 2529 urb = alloc_isoc_urb(hdev, skb); 2530 if (IS_ERR(urb)) 2531 return PTR_ERR(urb); 2532 2533 hdev->stat.sco_tx++; 2534 return submit_tx_urb(hdev, urb); 2535 2536 case HCI_ISODATA_PKT: 2537 urb = alloc_bulk_urb(hdev, skb); 2538 if (IS_ERR(urb)) 2539 return PTR_ERR(urb); 2540 2541 return submit_or_queue_tx_urb(hdev, urb); 2542 } 2543 2544 return -EILSEQ; 2545 } 2546 2547 static int btusb_setup_realtek(struct hci_dev *hdev) 2548 { 2549 struct btusb_data *data = hci_get_drvdata(hdev); 2550 int ret; 2551 2552 ret = btrtl_setup_realtek(hdev); 2553 2554 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP)) 2555 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags); 2556 2557 return ret; 2558 } 2559 2560 /* UHW CR mapping */ 2561 #define MTK_BT_MISC 0x70002510 2562 #define MTK_BT_SUBSYS_RST 0x70002610 2563 #define MTK_UDMA_INT_STA_BT 0x74000024 2564 #define MTK_UDMA_INT_STA_BT1 0x74000308 2565 #define MTK_BT_WDT_STATUS 0x740003A0 2566 #define MTK_EP_RST_OPT 0x74011890 2567 #define MTK_EP_RST_IN_OUT_OPT 0x00010001 2568 #define MTK_BT_RST_DONE 0x00000100 2569 #define MTK_BT_RESET_WAIT_MS 100 2570 #define MTK_BT_RESET_NUM_TRIES 10 2571 2572 static void btusb_mtk_wmt_recv(struct urb *urb) 2573 { 2574 struct hci_dev *hdev = urb->context; 2575 struct btusb_data *data = hci_get_drvdata(hdev); 2576 struct sk_buff *skb; 2577 int err; 2578 2579 if (urb->status == 0 && urb->actual_length > 0) { 2580 hdev->stat.byte_rx += urb->actual_length; 2581 2582 /* WMT event shouldn't be fragmented and the size should be 2583 * less than HCI_WMT_MAX_EVENT_SIZE. 2584 */ 2585 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC); 2586 if (!skb) { 2587 hdev->stat.err_rx++; 2588 kfree(urb->setup_packet); 2589 return; 2590 } 2591 2592 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 2593 skb_put_data(skb, urb->transfer_buffer, urb->actual_length); 2594 2595 /* When someone waits for the WMT event, the skb is being cloned 2596 * and being processed the events from there then. 2597 */ 2598 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) { 2599 data->evt_skb = skb_clone(skb, GFP_ATOMIC); 2600 if (!data->evt_skb) { 2601 kfree_skb(skb); 2602 kfree(urb->setup_packet); 2603 return; 2604 } 2605 } 2606 2607 err = hci_recv_frame(hdev, skb); 2608 if (err < 0) { 2609 kfree_skb(data->evt_skb); 2610 data->evt_skb = NULL; 2611 kfree(urb->setup_packet); 2612 return; 2613 } 2614 2615 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT, 2616 &data->flags)) { 2617 /* Barrier to sync with other CPUs */ 2618 smp_mb__after_atomic(); 2619 wake_up_bit(&data->flags, 2620 BTUSB_TX_WAIT_VND_EVT); 2621 } 2622 kfree(urb->setup_packet); 2623 return; 2624 } else if (urb->status == -ENOENT) { 2625 /* Avoid suspend failed when usb_kill_urb */ 2626 return; 2627 } 2628 2629 usb_mark_last_busy(data->udev); 2630 2631 /* The URB complete handler is still called with urb->actual_length = 0 2632 * when the event is not available, so we should keep re-submitting 2633 * URB until WMT event returns, Also, It's necessary to wait some time 2634 * between the two consecutive control URBs to relax the target device 2635 * to generate the event. Otherwise, the WMT event cannot return from 2636 * the device successfully. 2637 */ 2638 udelay(500); 2639 2640 usb_anchor_urb(urb, &data->ctrl_anchor); 2641 err = usb_submit_urb(urb, GFP_ATOMIC); 2642 if (err < 0) { 2643 kfree(urb->setup_packet); 2644 /* -EPERM: urb is being killed; 2645 * -ENODEV: device got disconnected 2646 */ 2647 if (err != -EPERM && err != -ENODEV) 2648 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 2649 urb, -err); 2650 usb_unanchor_urb(urb); 2651 } 2652 } 2653 2654 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev) 2655 { 2656 struct btusb_data *data = hci_get_drvdata(hdev); 2657 struct usb_ctrlrequest *dr; 2658 unsigned char *buf; 2659 int err, size = 64; 2660 unsigned int pipe; 2661 struct urb *urb; 2662 2663 urb = usb_alloc_urb(0, GFP_KERNEL); 2664 if (!urb) 2665 return -ENOMEM; 2666 2667 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 2668 if (!dr) { 2669 usb_free_urb(urb); 2670 return -ENOMEM; 2671 } 2672 2673 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN; 2674 dr->bRequest = 1; 2675 dr->wIndex = cpu_to_le16(0); 2676 dr->wValue = cpu_to_le16(48); 2677 dr->wLength = cpu_to_le16(size); 2678 2679 buf = kmalloc(size, GFP_KERNEL); 2680 if (!buf) { 2681 kfree(dr); 2682 usb_free_urb(urb); 2683 return -ENOMEM; 2684 } 2685 2686 pipe = usb_rcvctrlpipe(data->udev, 0); 2687 2688 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 2689 buf, size, btusb_mtk_wmt_recv, hdev); 2690 2691 urb->transfer_flags |= URB_FREE_BUFFER; 2692 2693 usb_anchor_urb(urb, &data->ctrl_anchor); 2694 err = usb_submit_urb(urb, GFP_KERNEL); 2695 if (err < 0) { 2696 if (err != -EPERM && err != -ENODEV) 2697 bt_dev_err(hdev, "urb %p submission failed (%d)", 2698 urb, -err); 2699 usb_unanchor_urb(urb); 2700 } 2701 2702 usb_free_urb(urb); 2703 2704 return err; 2705 } 2706 2707 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev, 2708 struct btmtk_hci_wmt_params *wmt_params) 2709 { 2710 struct btusb_data *data = hci_get_drvdata(hdev); 2711 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc; 2712 u32 hlen, status = BTMTK_WMT_INVALID; 2713 struct btmtk_hci_wmt_evt *wmt_evt; 2714 struct btmtk_hci_wmt_cmd *wc; 2715 struct btmtk_wmt_hdr *hdr; 2716 int err; 2717 2718 /* Send the WMT command and wait until the WMT event returns */ 2719 hlen = sizeof(*hdr) + wmt_params->dlen; 2720 if (hlen > 255) 2721 return -EINVAL; 2722 2723 wc = kzalloc(hlen, GFP_KERNEL); 2724 if (!wc) 2725 return -ENOMEM; 2726 2727 hdr = &wc->hdr; 2728 hdr->dir = 1; 2729 hdr->op = wmt_params->op; 2730 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1); 2731 hdr->flag = wmt_params->flag; 2732 memcpy(wc->data, wmt_params->data, wmt_params->dlen); 2733 2734 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2735 2736 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling, 2737 * it needs constantly polling control pipe until the host received the 2738 * WMT event, thus, we should require to specifically acquire PM counter 2739 * on the USB to prevent the interface from entering auto suspended 2740 * while WMT cmd/event in progress. 2741 */ 2742 err = usb_autopm_get_interface(data->intf); 2743 if (err < 0) 2744 goto err_free_wc; 2745 2746 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc); 2747 2748 if (err < 0) { 2749 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2750 usb_autopm_put_interface(data->intf); 2751 goto err_free_wc; 2752 } 2753 2754 /* Submit control IN URB on demand to process the WMT event */ 2755 err = btusb_mtk_submit_wmt_recv_urb(hdev); 2756 2757 usb_autopm_put_interface(data->intf); 2758 2759 if (err < 0) 2760 goto err_free_wc; 2761 2762 /* The vendor specific WMT commands are all answered by a vendor 2763 * specific event and will have the Command Status or Command 2764 * Complete as with usual HCI command flow control. 2765 * 2766 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT 2767 * state to be cleared. The driver specific event receive routine 2768 * will clear that state and with that indicate completion of the 2769 * WMT command. 2770 */ 2771 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT, 2772 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT); 2773 if (err == -EINTR) { 2774 bt_dev_err(hdev, "Execution of wmt command interrupted"); 2775 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2776 goto err_free_wc; 2777 } 2778 2779 if (err) { 2780 bt_dev_err(hdev, "Execution of wmt command timed out"); 2781 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); 2782 err = -ETIMEDOUT; 2783 goto err_free_wc; 2784 } 2785 2786 /* Parse and handle the return WMT event */ 2787 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; 2788 if (wmt_evt->whdr.op != hdr->op) { 2789 bt_dev_err(hdev, "Wrong op received %d expected %d", 2790 wmt_evt->whdr.op, hdr->op); 2791 err = -EIO; 2792 goto err_free_skb; 2793 } 2794 2795 switch (wmt_evt->whdr.op) { 2796 case BTMTK_WMT_SEMAPHORE: 2797 if (wmt_evt->whdr.flag == 2) 2798 status = BTMTK_WMT_PATCH_UNDONE; 2799 else 2800 status = BTMTK_WMT_PATCH_DONE; 2801 break; 2802 case BTMTK_WMT_FUNC_CTRL: 2803 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; 2804 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) 2805 status = BTMTK_WMT_ON_DONE; 2806 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) 2807 status = BTMTK_WMT_ON_PROGRESS; 2808 else 2809 status = BTMTK_WMT_ON_UNDONE; 2810 break; 2811 case BTMTK_WMT_PATCH_DWNLD: 2812 if (wmt_evt->whdr.flag == 2) 2813 status = BTMTK_WMT_PATCH_DONE; 2814 else if (wmt_evt->whdr.flag == 1) 2815 status = BTMTK_WMT_PATCH_PROGRESS; 2816 else 2817 status = BTMTK_WMT_PATCH_UNDONE; 2818 break; 2819 } 2820 2821 if (wmt_params->status) 2822 *wmt_params->status = status; 2823 2824 err_free_skb: 2825 kfree_skb(data->evt_skb); 2826 data->evt_skb = NULL; 2827 err_free_wc: 2828 kfree(wc); 2829 return err; 2830 } 2831 2832 static int btusb_mtk_func_query(struct hci_dev *hdev) 2833 { 2834 struct btmtk_hci_wmt_params wmt_params; 2835 int status, err; 2836 u8 param = 0; 2837 2838 /* Query whether the function is enabled */ 2839 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 2840 wmt_params.flag = 4; 2841 wmt_params.dlen = sizeof(param); 2842 wmt_params.data = ¶m; 2843 wmt_params.status = &status; 2844 2845 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 2846 if (err < 0) { 2847 bt_dev_err(hdev, "Failed to query function status (%d)", err); 2848 return err; 2849 } 2850 2851 return status; 2852 } 2853 2854 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) 2855 { 2856 struct hci_dev *hdev = data->hdev; 2857 int pipe, err; 2858 void *buf; 2859 2860 buf = kzalloc(4, GFP_KERNEL); 2861 if (!buf) 2862 return -ENOMEM; 2863 2864 put_unaligned_le32(val, buf); 2865 2866 pipe = usb_sndctrlpipe(data->udev, 0); 2867 err = usb_control_msg(data->udev, pipe, 0x02, 2868 0x5E, 2869 reg >> 16, reg & 0xffff, 2870 buf, 4, USB_CTRL_SET_TIMEOUT); 2871 if (err < 0) { 2872 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); 2873 goto err_free_buf; 2874 } 2875 2876 err_free_buf: 2877 kfree(buf); 2878 2879 return err; 2880 } 2881 2882 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2883 { 2884 struct hci_dev *hdev = data->hdev; 2885 int pipe, err; 2886 void *buf; 2887 2888 buf = kzalloc(4, GFP_KERNEL); 2889 if (!buf) 2890 return -ENOMEM; 2891 2892 pipe = usb_rcvctrlpipe(data->udev, 0); 2893 err = usb_control_msg(data->udev, pipe, 0x01, 2894 0xDE, 2895 reg >> 16, reg & 0xffff, 2896 buf, 4, USB_CTRL_SET_TIMEOUT); 2897 if (err < 0) { 2898 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); 2899 goto err_free_buf; 2900 } 2901 2902 *val = get_unaligned_le32(buf); 2903 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); 2904 2905 err_free_buf: 2906 kfree(buf); 2907 2908 return err; 2909 } 2910 2911 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) 2912 { 2913 int pipe, err, size = sizeof(u32); 2914 void *buf; 2915 2916 buf = kzalloc(size, GFP_KERNEL); 2917 if (!buf) 2918 return -ENOMEM; 2919 2920 pipe = usb_rcvctrlpipe(data->udev, 0); 2921 err = usb_control_msg(data->udev, pipe, 0x63, 2922 USB_TYPE_VENDOR | USB_DIR_IN, 2923 reg >> 16, reg & 0xffff, 2924 buf, size, USB_CTRL_SET_TIMEOUT); 2925 if (err < 0) 2926 goto err_free_buf; 2927 2928 *val = get_unaligned_le32(buf); 2929 2930 err_free_buf: 2931 kfree(buf); 2932 2933 return err; 2934 } 2935 2936 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) 2937 { 2938 return btusb_mtk_reg_read(data, reg, id); 2939 } 2940 2941 static int btusb_mtk_setup(struct hci_dev *hdev) 2942 { 2943 struct btusb_data *data = hci_get_drvdata(hdev); 2944 struct btmtk_hci_wmt_params wmt_params; 2945 ktime_t calltime, delta, rettime; 2946 struct btmtk_tci_sleep tci_sleep; 2947 unsigned long long duration; 2948 struct sk_buff *skb; 2949 const char *fwname; 2950 int err, status; 2951 u32 dev_id; 2952 char fw_bin_name[64]; 2953 u32 fw_version = 0; 2954 u8 param; 2955 2956 calltime = ktime_get(); 2957 2958 err = btusb_mtk_id_get(data, 0x80000008, &dev_id); 2959 if (err < 0) { 2960 bt_dev_err(hdev, "Failed to get device id (%d)", err); 2961 return err; 2962 } 2963 2964 if (!dev_id) { 2965 err = btusb_mtk_id_get(data, 0x70010200, &dev_id); 2966 if (err < 0) { 2967 bt_dev_err(hdev, "Failed to get device id (%d)", err); 2968 return err; 2969 } 2970 err = btusb_mtk_id_get(data, 0x80021004, &fw_version); 2971 if (err < 0) { 2972 bt_dev_err(hdev, "Failed to get fw version (%d)", err); 2973 return err; 2974 } 2975 } 2976 2977 switch (dev_id) { 2978 case 0x7663: 2979 fwname = FIRMWARE_MT7663; 2980 break; 2981 case 0x7668: 2982 fwname = FIRMWARE_MT7668; 2983 break; 2984 case 0x7922: 2985 case 0x7961: 2986 snprintf(fw_bin_name, sizeof(fw_bin_name), 2987 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 2988 dev_id & 0xffff, (fw_version & 0xff) + 1); 2989 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name, 2990 btusb_mtk_hci_wmt_sync); 2991 if (err < 0) { 2992 bt_dev_err(hdev, "Failed to set up firmware (%d)", err); 2993 return err; 2994 } 2995 2996 /* It's Device EndPoint Reset Option Register */ 2997 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 2998 2999 /* Enable Bluetooth protocol */ 3000 param = 1; 3001 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3002 wmt_params.flag = 0; 3003 wmt_params.dlen = sizeof(param); 3004 wmt_params.data = ¶m; 3005 wmt_params.status = NULL; 3006 3007 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3008 if (err < 0) { 3009 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3010 return err; 3011 } 3012 3013 hci_set_msft_opcode(hdev, 0xFD30); 3014 hci_set_aosp_capable(hdev); 3015 goto done; 3016 default: 3017 bt_dev_err(hdev, "Unsupported hardware variant (%08x)", 3018 dev_id); 3019 return -ENODEV; 3020 } 3021 3022 /* Query whether the firmware is already download */ 3023 wmt_params.op = BTMTK_WMT_SEMAPHORE; 3024 wmt_params.flag = 1; 3025 wmt_params.dlen = 0; 3026 wmt_params.data = NULL; 3027 wmt_params.status = &status; 3028 3029 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3030 if (err < 0) { 3031 bt_dev_err(hdev, "Failed to query firmware status (%d)", err); 3032 return err; 3033 } 3034 3035 if (status == BTMTK_WMT_PATCH_DONE) { 3036 bt_dev_info(hdev, "firmware already downloaded"); 3037 goto ignore_setup_fw; 3038 } 3039 3040 /* Setup a firmware which the device definitely requires */ 3041 err = btmtk_setup_firmware(hdev, fwname, 3042 btusb_mtk_hci_wmt_sync); 3043 if (err < 0) 3044 return err; 3045 3046 ignore_setup_fw: 3047 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, 3048 status < 0 || status != BTMTK_WMT_ON_PROGRESS, 3049 2000, 5000000); 3050 /* -ETIMEDOUT happens */ 3051 if (err < 0) 3052 return err; 3053 3054 /* The other errors happen in btusb_mtk_func_query */ 3055 if (status < 0) 3056 return status; 3057 3058 if (status == BTMTK_WMT_ON_DONE) { 3059 bt_dev_info(hdev, "function already on"); 3060 goto ignore_func_on; 3061 } 3062 3063 /* Enable Bluetooth protocol */ 3064 param = 1; 3065 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3066 wmt_params.flag = 0; 3067 wmt_params.dlen = sizeof(param); 3068 wmt_params.data = ¶m; 3069 wmt_params.status = NULL; 3070 3071 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3072 if (err < 0) { 3073 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3074 return err; 3075 } 3076 3077 ignore_func_on: 3078 /* Apply the low power environment setup */ 3079 tci_sleep.mode = 0x5; 3080 tci_sleep.duration = cpu_to_le16(0x640); 3081 tci_sleep.host_duration = cpu_to_le16(0x640); 3082 tci_sleep.host_wakeup_pin = 0; 3083 tci_sleep.time_compensation = 0; 3084 3085 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, 3086 HCI_INIT_TIMEOUT); 3087 if (IS_ERR(skb)) { 3088 err = PTR_ERR(skb); 3089 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); 3090 return err; 3091 } 3092 kfree_skb(skb); 3093 3094 done: 3095 rettime = ktime_get(); 3096 delta = ktime_sub(rettime, calltime); 3097 duration = (unsigned long long)ktime_to_ns(delta) >> 10; 3098 3099 bt_dev_info(hdev, "Device setup in %llu usecs", duration); 3100 3101 return 0; 3102 } 3103 3104 static int btusb_mtk_shutdown(struct hci_dev *hdev) 3105 { 3106 struct btmtk_hci_wmt_params wmt_params; 3107 u8 param = 0; 3108 int err; 3109 3110 /* Disable the device */ 3111 wmt_params.op = BTMTK_WMT_FUNC_CTRL; 3112 wmt_params.flag = 0; 3113 wmt_params.dlen = sizeof(param); 3114 wmt_params.data = ¶m; 3115 wmt_params.status = NULL; 3116 3117 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); 3118 if (err < 0) { 3119 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); 3120 return err; 3121 } 3122 3123 return 0; 3124 } 3125 3126 static void btusb_mtk_cmd_timeout(struct hci_dev *hdev) 3127 { 3128 struct btusb_data *data = hci_get_drvdata(hdev); 3129 u32 val; 3130 int err, retry = 0; 3131 3132 /* It's MediaTek specific bluetooth reset mechanism via USB */ 3133 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 3134 bt_dev_err(hdev, "last reset failed? Not resetting again"); 3135 return; 3136 } 3137 3138 err = usb_autopm_get_interface(data->intf); 3139 if (err < 0) 3140 return; 3141 3142 btusb_stop_traffic(data); 3143 usb_kill_anchored_urbs(&data->tx_anchor); 3144 3145 /* It's Device EndPoint Reset Option Register */ 3146 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); 3147 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); 3148 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); 3149 3150 /* Reset the bluetooth chip via USB interface. */ 3151 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); 3152 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); 3153 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); 3154 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); 3155 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); 3156 /* MT7921 need to delay 20ms between toggle reset bit */ 3157 msleep(20); 3158 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); 3159 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); 3160 3161 /* Poll the register until reset is completed */ 3162 do { 3163 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); 3164 if (val & MTK_BT_RST_DONE) { 3165 bt_dev_dbg(hdev, "Bluetooth Reset Successfully"); 3166 break; 3167 } 3168 3169 bt_dev_dbg(hdev, "Polling Bluetooth Reset CR"); 3170 retry++; 3171 msleep(MTK_BT_RESET_WAIT_MS); 3172 } while (retry < MTK_BT_RESET_NUM_TRIES); 3173 3174 btusb_mtk_id_get(data, 0x70010200, &val); 3175 if (!val) 3176 bt_dev_err(hdev, "Can't get device id, subsys reset fail."); 3177 3178 usb_queue_reset_device(data->intf); 3179 3180 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); 3181 } 3182 3183 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) 3184 { 3185 struct btusb_data *data = hci_get_drvdata(hdev); 3186 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); 3187 3188 switch (handle) { 3189 case 0xfc6f: /* Firmware dump from device */ 3190 /* When the firmware hangs, the device can no longer 3191 * suspend and thus disable auto-suspend. 3192 */ 3193 usb_disable_autosuspend(data->udev); 3194 fallthrough; 3195 case 0x05ff: /* Firmware debug logging 1 */ 3196 case 0x05fe: /* Firmware debug logging 2 */ 3197 return hci_recv_diag(hdev, skb); 3198 } 3199 3200 return hci_recv_frame(hdev, skb); 3201 } 3202 3203 #ifdef CONFIG_PM 3204 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 3205 static int marvell_config_oob_wake(struct hci_dev *hdev) 3206 { 3207 struct sk_buff *skb; 3208 struct btusb_data *data = hci_get_drvdata(hdev); 3209 struct device *dev = &data->udev->dev; 3210 u16 pin, gap, opcode; 3211 int ret; 3212 u8 cmd[5]; 3213 3214 /* Move on if no wakeup pin specified */ 3215 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 3216 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 3217 return 0; 3218 3219 /* Vendor specific command to configure a GPIO as wake-up pin */ 3220 opcode = hci_opcode_pack(0x3F, 0x59); 3221 cmd[0] = opcode & 0xFF; 3222 cmd[1] = opcode >> 8; 3223 cmd[2] = 2; /* length of parameters that follow */ 3224 cmd[3] = pin; 3225 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 3226 3227 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 3228 if (!skb) { 3229 bt_dev_err(hdev, "%s: No memory", __func__); 3230 return -ENOMEM; 3231 } 3232 3233 skb_put_data(skb, cmd, sizeof(cmd)); 3234 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 3235 3236 ret = btusb_send_frame(hdev, skb); 3237 if (ret) { 3238 bt_dev_err(hdev, "%s: configuration failed", __func__); 3239 kfree_skb(skb); 3240 return ret; 3241 } 3242 3243 return 0; 3244 } 3245 #endif 3246 3247 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 3248 const bdaddr_t *bdaddr) 3249 { 3250 struct sk_buff *skb; 3251 u8 buf[8]; 3252 long ret; 3253 3254 buf[0] = 0xfe; 3255 buf[1] = sizeof(bdaddr_t); 3256 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 3257 3258 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3259 if (IS_ERR(skb)) { 3260 ret = PTR_ERR(skb); 3261 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 3262 ret); 3263 return ret; 3264 } 3265 kfree_skb(skb); 3266 3267 return 0; 3268 } 3269 3270 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 3271 const bdaddr_t *bdaddr) 3272 { 3273 struct sk_buff *skb; 3274 u8 buf[10]; 3275 long ret; 3276 3277 buf[0] = 0x01; 3278 buf[1] = 0x01; 3279 buf[2] = 0x00; 3280 buf[3] = sizeof(bdaddr_t); 3281 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 3282 3283 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 3284 if (IS_ERR(skb)) { 3285 ret = PTR_ERR(skb); 3286 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3287 return ret; 3288 } 3289 kfree_skb(skb); 3290 3291 return 0; 3292 } 3293 3294 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev, 3295 const bdaddr_t *bdaddr) 3296 { 3297 struct sk_buff *skb; 3298 u8 buf[6]; 3299 long ret; 3300 3301 memcpy(buf, bdaddr, sizeof(bdaddr_t)); 3302 3303 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf, 3304 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 3305 if (IS_ERR(skb)) { 3306 ret = PTR_ERR(skb); 3307 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 3308 return ret; 3309 } 3310 kfree_skb(skb); 3311 3312 return 0; 3313 } 3314 3315 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD 3316 #define QCA_MEMDUMP_SIZE_MAX 0x100000 3317 #define QCA_MEMDUMP_VSE_CLASS 0x01 3318 #define QCA_MEMDUMP_MSG_TYPE 0x08 3319 #define QCA_MEMDUMP_PKT_SIZE 248 3320 #define QCA_LAST_SEQUENCE_NUM 0xffff 3321 3322 struct qca_dump_hdr { 3323 u8 vse_class; 3324 u8 msg_type; 3325 __le16 seqno; 3326 u8 reserved; 3327 union { 3328 u8 data[0]; 3329 struct { 3330 __le32 ram_dump_size; 3331 u8 data0[0]; 3332 } __packed; 3333 }; 3334 } __packed; 3335 3336 3337 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb) 3338 { 3339 char buf[128]; 3340 struct btusb_data *btdata = hci_get_drvdata(hdev); 3341 3342 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n", 3343 btdata->qca_dump.controller_id); 3344 skb_put_data(skb, buf, strlen(buf)); 3345 3346 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n", 3347 btdata->qca_dump.fw_version); 3348 skb_put_data(skb, buf, strlen(buf)); 3349 3350 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n", 3351 btusb_driver.name); 3352 skb_put_data(skb, buf, strlen(buf)); 3353 3354 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n", 3355 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product); 3356 skb_put_data(skb, buf, strlen(buf)); 3357 3358 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n", 3359 hdev->lmp_subver); 3360 skb_put_data(skb, buf, strlen(buf)); 3361 } 3362 3363 static void btusb_coredump_qca(struct hci_dev *hdev) 3364 { 3365 static const u8 param[] = { 0x26 }; 3366 struct sk_buff *skb; 3367 3368 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT); 3369 if (IS_ERR(skb)) 3370 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb)); 3371 kfree_skb(skb); 3372 } 3373 3374 /* 3375 * ==0: not a dump pkt. 3376 * < 0: fails to handle a dump pkt 3377 * > 0: otherwise. 3378 */ 3379 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3380 { 3381 int ret = 1; 3382 u8 pkt_type; 3383 u8 *sk_ptr; 3384 unsigned int sk_len; 3385 u16 seqno; 3386 u32 dump_size; 3387 3388 struct hci_event_hdr *event_hdr; 3389 struct hci_acl_hdr *acl_hdr; 3390 struct qca_dump_hdr *dump_hdr; 3391 struct btusb_data *btdata = hci_get_drvdata(hdev); 3392 struct usb_device *udev = btdata->udev; 3393 3394 pkt_type = hci_skb_pkt_type(skb); 3395 sk_ptr = skb->data; 3396 sk_len = skb->len; 3397 3398 if (pkt_type == HCI_ACLDATA_PKT) { 3399 acl_hdr = hci_acl_hdr(skb); 3400 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE) 3401 return 0; 3402 sk_ptr += HCI_ACL_HDR_SIZE; 3403 sk_len -= HCI_ACL_HDR_SIZE; 3404 event_hdr = (struct hci_event_hdr *)sk_ptr; 3405 } else { 3406 event_hdr = hci_event_hdr(skb); 3407 } 3408 3409 if ((event_hdr->evt != HCI_VENDOR_PKT) 3410 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE))) 3411 return 0; 3412 3413 sk_ptr += HCI_EVENT_HDR_SIZE; 3414 sk_len -= HCI_EVENT_HDR_SIZE; 3415 3416 dump_hdr = (struct qca_dump_hdr *)sk_ptr; 3417 if ((sk_len < offsetof(struct qca_dump_hdr, data)) 3418 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) 3419 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE)) 3420 return 0; 3421 3422 /*it is dump pkt now*/ 3423 seqno = le16_to_cpu(dump_hdr->seqno); 3424 if (seqno == 0) { 3425 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags); 3426 dump_size = le32_to_cpu(dump_hdr->ram_dump_size); 3427 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) { 3428 ret = -EILSEQ; 3429 bt_dev_err(hdev, "Invalid memdump size(%u)", 3430 dump_size); 3431 goto out; 3432 } 3433 3434 ret = hci_devcd_init(hdev, dump_size); 3435 if (ret < 0) { 3436 bt_dev_err(hdev, "memdump init error(%d)", ret); 3437 goto out; 3438 } 3439 3440 btdata->qca_dump.ram_dump_size = dump_size; 3441 btdata->qca_dump.ram_dump_seqno = 0; 3442 sk_ptr += offsetof(struct qca_dump_hdr, data0); 3443 sk_len -= offsetof(struct qca_dump_hdr, data0); 3444 3445 usb_disable_autosuspend(udev); 3446 bt_dev_info(hdev, "%s memdump size(%u)\n", 3447 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event", 3448 dump_size); 3449 } else { 3450 sk_ptr += offsetof(struct qca_dump_hdr, data); 3451 sk_len -= offsetof(struct qca_dump_hdr, data); 3452 } 3453 3454 if (!btdata->qca_dump.ram_dump_size) { 3455 ret = -EINVAL; 3456 bt_dev_err(hdev, "memdump is not active"); 3457 goto out; 3458 } 3459 3460 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) { 3461 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1); 3462 hci_devcd_append_pattern(hdev, 0x0, dump_size); 3463 bt_dev_err(hdev, 3464 "expected memdump seqno(%u) is not received(%u)\n", 3465 btdata->qca_dump.ram_dump_seqno, seqno); 3466 btdata->qca_dump.ram_dump_seqno = seqno; 3467 kfree_skb(skb); 3468 return ret; 3469 } 3470 3471 skb_pull(skb, skb->len - sk_len); 3472 hci_devcd_append(hdev, skb); 3473 btdata->qca_dump.ram_dump_seqno++; 3474 if (seqno == QCA_LAST_SEQUENCE_NUM) { 3475 bt_dev_info(hdev, 3476 "memdump done: pkts(%u), total(%u)\n", 3477 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size); 3478 3479 hci_devcd_complete(hdev); 3480 goto out; 3481 } 3482 return ret; 3483 3484 out: 3485 if (btdata->qca_dump.ram_dump_size) 3486 usb_enable_autosuspend(udev); 3487 btdata->qca_dump.ram_dump_size = 0; 3488 btdata->qca_dump.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 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb) 3497 { 3498 if (handle_dump_pkt_qca(hdev, skb)) 3499 return 0; 3500 return hci_recv_frame(hdev, skb); 3501 } 3502 3503 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb) 3504 { 3505 if (handle_dump_pkt_qca(hdev, skb)) 3506 return 0; 3507 return hci_recv_frame(hdev, skb); 3508 } 3509 3510 3511 #define QCA_DFU_PACKET_LEN 4096 3512 3513 #define QCA_GET_TARGET_VERSION 0x09 3514 #define QCA_CHECK_STATUS 0x05 3515 #define QCA_DFU_DOWNLOAD 0x01 3516 3517 #define QCA_SYSCFG_UPDATED 0x40 3518 #define QCA_PATCH_UPDATED 0x80 3519 #define QCA_DFU_TIMEOUT 3000 3520 #define QCA_FLAG_MULTI_NVM 0x80 3521 #define QCA_BT_RESET_WAIT_MS 100 3522 3523 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200 3524 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211 3525 3526 struct qca_version { 3527 __le32 rom_version; 3528 __le32 patch_version; 3529 __le32 ram_version; 3530 __u8 chip_id; 3531 __u8 platform_id; 3532 __le16 flag; 3533 __u8 reserved[4]; 3534 } __packed; 3535 3536 struct qca_rampatch_version { 3537 __le16 rom_version_high; 3538 __le16 rom_version_low; 3539 __le16 patch_version; 3540 } __packed; 3541 3542 struct qca_device_info { 3543 u32 rom_version; 3544 u8 rampatch_hdr; /* length of header in rampatch */ 3545 u8 nvm_hdr; /* length of header in NVM */ 3546 u8 ver_offset; /* offset of version structure in rampatch */ 3547 }; 3548 3549 static const struct qca_device_info qca_devices_table[] = { 3550 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */ 3551 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */ 3552 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */ 3553 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */ 3554 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */ 3555 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */ 3556 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */ 3557 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */ 3558 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */ 3559 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */ 3560 }; 3561 3562 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 3563 void *data, u16 size) 3564 { 3565 int pipe, err; 3566 u8 *buf; 3567 3568 buf = kmalloc(size, GFP_KERNEL); 3569 if (!buf) 3570 return -ENOMEM; 3571 3572 /* Found some of USB hosts have IOT issues with ours so that we should 3573 * not wait until HCI layer is ready. 3574 */ 3575 pipe = usb_rcvctrlpipe(udev, 0); 3576 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 3577 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3578 if (err < 0) { 3579 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 3580 goto done; 3581 } 3582 3583 memcpy(data, buf, size); 3584 3585 done: 3586 kfree(buf); 3587 3588 return err; 3589 } 3590 3591 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 3592 const struct firmware *firmware, 3593 size_t hdr_size) 3594 { 3595 struct btusb_data *btdata = hci_get_drvdata(hdev); 3596 struct usb_device *udev = btdata->udev; 3597 size_t count, size, sent = 0; 3598 int pipe, len, err; 3599 u8 *buf; 3600 3601 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 3602 if (!buf) 3603 return -ENOMEM; 3604 3605 count = firmware->size; 3606 3607 size = min_t(size_t, count, hdr_size); 3608 memcpy(buf, firmware->data, size); 3609 3610 /* USB patches should go down to controller through USB path 3611 * because binary format fits to go down through USB channel. 3612 * USB control path is for patching headers and USB bulk is for 3613 * patch body. 3614 */ 3615 pipe = usb_sndctrlpipe(udev, 0); 3616 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 3617 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 3618 if (err < 0) { 3619 bt_dev_err(hdev, "Failed to send headers (%d)", err); 3620 goto done; 3621 } 3622 3623 sent += size; 3624 count -= size; 3625 3626 /* ep2 need time to switch from function acl to function dfu, 3627 * so we add 20ms delay here. 3628 */ 3629 msleep(20); 3630 3631 while (count) { 3632 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 3633 3634 memcpy(buf, firmware->data + sent, size); 3635 3636 pipe = usb_sndbulkpipe(udev, 0x02); 3637 err = usb_bulk_msg(udev, pipe, buf, size, &len, 3638 QCA_DFU_TIMEOUT); 3639 if (err < 0) { 3640 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 3641 sent, firmware->size, err); 3642 break; 3643 } 3644 3645 if (size != len) { 3646 bt_dev_err(hdev, "Failed to get bulk buffer"); 3647 err = -EILSEQ; 3648 break; 3649 } 3650 3651 sent += size; 3652 count -= size; 3653 } 3654 3655 done: 3656 kfree(buf); 3657 return err; 3658 } 3659 3660 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 3661 struct qca_version *ver, 3662 const struct qca_device_info *info) 3663 { 3664 struct qca_rampatch_version *rver; 3665 const struct firmware *fw; 3666 u32 ver_rom, ver_patch, rver_rom; 3667 u16 rver_rom_low, rver_rom_high, rver_patch; 3668 char fwname[64]; 3669 int err; 3670 3671 ver_rom = le32_to_cpu(ver->rom_version); 3672 ver_patch = le32_to_cpu(ver->patch_version); 3673 3674 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 3675 3676 err = request_firmware(&fw, fwname, &hdev->dev); 3677 if (err) { 3678 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 3679 fwname, err); 3680 return err; 3681 } 3682 3683 bt_dev_info(hdev, "using rampatch file: %s", fwname); 3684 3685 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 3686 rver_rom_low = le16_to_cpu(rver->rom_version_low); 3687 rver_patch = le16_to_cpu(rver->patch_version); 3688 3689 if (ver_rom & ~0xffffU) { 3690 rver_rom_high = le16_to_cpu(rver->rom_version_high); 3691 rver_rom = rver_rom_high << 16 | rver_rom_low; 3692 } else { 3693 rver_rom = rver_rom_low; 3694 } 3695 3696 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 3697 "firmware rome 0x%x build 0x%x", 3698 rver_rom, rver_patch, ver_rom, ver_patch); 3699 3700 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 3701 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 3702 err = -EINVAL; 3703 goto done; 3704 } 3705 3706 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 3707 3708 done: 3709 release_firmware(fw); 3710 3711 return err; 3712 } 3713 3714 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size, 3715 const struct qca_version *ver) 3716 { 3717 u32 rom_version = le32_to_cpu(ver->rom_version); 3718 u16 flag = le16_to_cpu(ver->flag); 3719 3720 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3721 /* The board_id should be split into two bytes 3722 * The 1st byte is chip ID, and the 2nd byte is platform ID 3723 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID 3724 * we have several platforms, and platform IDs are continuously added 3725 * Platform ID: 3726 * 0x00 is for Mobile 3727 * 0x01 is for X86 3728 * 0x02 is for Automotive 3729 * 0x03 is for Consumer electronic 3730 */ 3731 u16 board_id = (ver->chip_id << 8) + ver->platform_id; 3732 const char *variant; 3733 3734 switch (le32_to_cpu(ver->ram_version)) { 3735 case WCN6855_2_0_RAM_VERSION_GF: 3736 case WCN6855_2_1_RAM_VERSION_GF: 3737 variant = "_gf"; 3738 break; 3739 default: 3740 variant = ""; 3741 break; 3742 } 3743 3744 if (board_id == 0) { 3745 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3746 rom_version, variant); 3747 } else { 3748 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3749 rom_version, variant, board_id); 3750 } 3751 } else { 3752 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3753 rom_version); 3754 } 3755 3756 } 3757 3758 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3759 struct qca_version *ver, 3760 const struct qca_device_info *info) 3761 { 3762 const struct firmware *fw; 3763 char fwname[64]; 3764 int err; 3765 3766 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver); 3767 3768 err = request_firmware(&fw, fwname, &hdev->dev); 3769 if (err) { 3770 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3771 fwname, err); 3772 return err; 3773 } 3774 3775 bt_dev_info(hdev, "using NVM file: %s", fwname); 3776 3777 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3778 3779 release_firmware(fw); 3780 3781 return err; 3782 } 3783 3784 /* identify the ROM version and check whether patches are needed */ 3785 static bool btusb_qca_need_patch(struct usb_device *udev) 3786 { 3787 struct qca_version ver; 3788 3789 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3790 sizeof(ver)) < 0) 3791 return false; 3792 /* only low ROM versions need patches */ 3793 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 3794 } 3795 3796 static int btusb_setup_qca(struct hci_dev *hdev) 3797 { 3798 struct btusb_data *btdata = hci_get_drvdata(hdev); 3799 struct usb_device *udev = btdata->udev; 3800 const struct qca_device_info *info = NULL; 3801 struct qca_version ver; 3802 u32 ver_rom; 3803 u8 status; 3804 int i, err; 3805 3806 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3807 sizeof(ver)); 3808 if (err < 0) 3809 return err; 3810 3811 ver_rom = le32_to_cpu(ver.rom_version); 3812 3813 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 3814 if (ver_rom == qca_devices_table[i].rom_version) 3815 info = &qca_devices_table[i]; 3816 } 3817 if (!info) { 3818 /* If the rom_version is not matched in the qca_devices_table 3819 * and the high ROM version is not zero, we assume this chip no 3820 * need to load the rampatch and nvm. 3821 */ 3822 if (ver_rom & ~0xffffU) 3823 return 0; 3824 3825 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 3826 return -ENODEV; 3827 } 3828 3829 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 3830 sizeof(status)); 3831 if (err < 0) 3832 return err; 3833 3834 if (!(status & QCA_PATCH_UPDATED)) { 3835 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 3836 if (err < 0) 3837 return err; 3838 } 3839 3840 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 3841 sizeof(ver)); 3842 if (err < 0) 3843 return err; 3844 3845 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version); 3846 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version); 3847 3848 if (!(status & QCA_SYSCFG_UPDATED)) { 3849 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 3850 if (err < 0) 3851 return err; 3852 3853 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so 3854 * wait ~100ms for reset Done then go ahead, otherwise, it maybe 3855 * cause potential enable failure. 3856 */ 3857 if (info->rom_version >= 0x00130201) 3858 msleep(QCA_BT_RESET_WAIT_MS); 3859 } 3860 3861 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to 3862 * work with the likes of HSP/HFP mSBC. 3863 */ 3864 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 3865 3866 return 0; 3867 } 3868 3869 static inline int __set_diag_interface(struct hci_dev *hdev) 3870 { 3871 struct btusb_data *data = hci_get_drvdata(hdev); 3872 struct usb_interface *intf = data->diag; 3873 int i; 3874 3875 if (!data->diag) 3876 return -ENODEV; 3877 3878 data->diag_tx_ep = NULL; 3879 data->diag_rx_ep = NULL; 3880 3881 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3882 struct usb_endpoint_descriptor *ep_desc; 3883 3884 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3885 3886 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3887 data->diag_tx_ep = ep_desc; 3888 continue; 3889 } 3890 3891 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3892 data->diag_rx_ep = ep_desc; 3893 continue; 3894 } 3895 } 3896 3897 if (!data->diag_tx_ep || !data->diag_rx_ep) { 3898 bt_dev_err(hdev, "invalid diagnostic descriptors"); 3899 return -ENODEV; 3900 } 3901 3902 return 0; 3903 } 3904 3905 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 3906 { 3907 struct btusb_data *data = hci_get_drvdata(hdev); 3908 struct sk_buff *skb; 3909 struct urb *urb; 3910 unsigned int pipe; 3911 3912 if (!data->diag_tx_ep) 3913 return ERR_PTR(-ENODEV); 3914 3915 urb = usb_alloc_urb(0, GFP_KERNEL); 3916 if (!urb) 3917 return ERR_PTR(-ENOMEM); 3918 3919 skb = bt_skb_alloc(2, GFP_KERNEL); 3920 if (!skb) { 3921 usb_free_urb(urb); 3922 return ERR_PTR(-ENOMEM); 3923 } 3924 3925 skb_put_u8(skb, 0xf0); 3926 skb_put_u8(skb, enable); 3927 3928 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 3929 3930 usb_fill_bulk_urb(urb, data->udev, pipe, 3931 skb->data, skb->len, btusb_tx_complete, skb); 3932 3933 skb->dev = (void *)hdev; 3934 3935 return urb; 3936 } 3937 3938 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 3939 { 3940 struct btusb_data *data = hci_get_drvdata(hdev); 3941 struct urb *urb; 3942 3943 if (!data->diag) 3944 return -ENODEV; 3945 3946 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3947 return -ENETDOWN; 3948 3949 urb = alloc_diag_urb(hdev, enable); 3950 if (IS_ERR(urb)) 3951 return PTR_ERR(urb); 3952 3953 return submit_or_queue_tx_urb(hdev, urb); 3954 } 3955 3956 #ifdef CONFIG_PM 3957 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 3958 { 3959 struct btusb_data *data = priv; 3960 3961 pm_wakeup_event(&data->udev->dev, 0); 3962 pm_system_wakeup(); 3963 3964 /* Disable only if not already disabled (keep it balanced) */ 3965 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3966 disable_irq_nosync(irq); 3967 disable_irq_wake(irq); 3968 } 3969 return IRQ_HANDLED; 3970 } 3971 3972 static const struct of_device_id btusb_match_table[] = { 3973 { .compatible = "usb1286,204e" }, 3974 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 3975 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 3976 { } 3977 }; 3978 MODULE_DEVICE_TABLE(of, btusb_match_table); 3979 3980 /* Use an oob wakeup pin? */ 3981 static int btusb_config_oob_wake(struct hci_dev *hdev) 3982 { 3983 struct btusb_data *data = hci_get_drvdata(hdev); 3984 struct device *dev = &data->udev->dev; 3985 int irq, ret; 3986 3987 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3988 3989 if (!of_match_device(btusb_match_table, dev)) 3990 return 0; 3991 3992 /* Move on if no IRQ specified */ 3993 irq = of_irq_get_byname(dev->of_node, "wakeup"); 3994 if (irq <= 0) { 3995 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 3996 return 0; 3997 } 3998 3999 irq_set_status_flags(irq, IRQ_NOAUTOEN); 4000 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 4001 0, "OOB Wake-on-BT", data); 4002 if (ret) { 4003 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 4004 return ret; 4005 } 4006 4007 ret = device_init_wakeup(dev, true); 4008 if (ret) { 4009 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 4010 return ret; 4011 } 4012 4013 data->oob_wake_irq = irq; 4014 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 4015 return 0; 4016 } 4017 #endif 4018 4019 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 4020 { 4021 if (dmi_check_system(btusb_needs_reset_resume_table)) 4022 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 4023 } 4024 4025 static bool btusb_wakeup(struct hci_dev *hdev) 4026 { 4027 struct btusb_data *data = hci_get_drvdata(hdev); 4028 4029 return device_may_wakeup(&data->udev->dev); 4030 } 4031 4032 static int btusb_shutdown_qca(struct hci_dev *hdev) 4033 { 4034 struct sk_buff *skb; 4035 4036 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 4037 if (IS_ERR(skb)) { 4038 bt_dev_err(hdev, "HCI reset during shutdown failed"); 4039 return PTR_ERR(skb); 4040 } 4041 kfree_skb(skb); 4042 4043 return 0; 4044 } 4045 4046 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf, 4047 size_t count, loff_t *ppos) 4048 { 4049 struct btusb_data *data = file->private_data; 4050 char buf[3]; 4051 4052 buf[0] = data->poll_sync ? 'Y' : 'N'; 4053 buf[1] = '\n'; 4054 buf[2] = '\0'; 4055 return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4056 } 4057 4058 static ssize_t force_poll_sync_write(struct file *file, 4059 const char __user *user_buf, 4060 size_t count, loff_t *ppos) 4061 { 4062 struct btusb_data *data = file->private_data; 4063 bool enable; 4064 int err; 4065 4066 err = kstrtobool_from_user(user_buf, count, &enable); 4067 if (err) 4068 return err; 4069 4070 /* Only allow changes while the adapter is down */ 4071 if (test_bit(HCI_UP, &data->hdev->flags)) 4072 return -EPERM; 4073 4074 if (data->poll_sync == enable) 4075 return -EALREADY; 4076 4077 data->poll_sync = enable; 4078 4079 return count; 4080 } 4081 4082 static const struct file_operations force_poll_sync_fops = { 4083 .open = simple_open, 4084 .read = force_poll_sync_read, 4085 .write = force_poll_sync_write, 4086 .llseek = default_llseek, 4087 }; 4088 4089 static int btusb_probe(struct usb_interface *intf, 4090 const struct usb_device_id *id) 4091 { 4092 struct usb_endpoint_descriptor *ep_desc; 4093 struct gpio_desc *reset_gpio; 4094 struct btusb_data *data; 4095 struct hci_dev *hdev; 4096 unsigned ifnum_base; 4097 int i, err, priv_size; 4098 4099 BT_DBG("intf %p id %p", intf, id); 4100 4101 if ((id->driver_info & BTUSB_IFNUM_2) && 4102 (intf->cur_altsetting->desc.bInterfaceNumber != 2)) 4103 return -ENODEV; 4104 4105 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 4106 4107 if (!id->driver_info) { 4108 const struct usb_device_id *match; 4109 4110 match = usb_match_id(intf, blacklist_table); 4111 if (match) 4112 id = match; 4113 } 4114 4115 if (id->driver_info == BTUSB_IGNORE) 4116 return -ENODEV; 4117 4118 if (id->driver_info & BTUSB_ATH3012) { 4119 struct usb_device *udev = interface_to_usbdev(intf); 4120 4121 /* Old firmware would otherwise let ath3k driver load 4122 * patch and sysconfig files 4123 */ 4124 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 4125 !btusb_qca_need_patch(udev)) 4126 return -ENODEV; 4127 } 4128 4129 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 4130 if (!data) 4131 return -ENOMEM; 4132 4133 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 4134 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 4135 4136 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 4137 data->intr_ep = ep_desc; 4138 continue; 4139 } 4140 4141 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 4142 data->bulk_tx_ep = ep_desc; 4143 continue; 4144 } 4145 4146 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 4147 data->bulk_rx_ep = ep_desc; 4148 continue; 4149 } 4150 } 4151 4152 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 4153 return -ENODEV; 4154 4155 if (id->driver_info & BTUSB_AMP) { 4156 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 4157 data->cmdreq = 0x2b; 4158 } else { 4159 data->cmdreq_type = USB_TYPE_CLASS; 4160 data->cmdreq = 0x00; 4161 } 4162 4163 data->udev = interface_to_usbdev(intf); 4164 data->intf = intf; 4165 4166 INIT_WORK(&data->work, btusb_work); 4167 INIT_WORK(&data->waker, btusb_waker); 4168 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work); 4169 4170 skb_queue_head_init(&data->acl_q); 4171 4172 init_usb_anchor(&data->deferred); 4173 init_usb_anchor(&data->tx_anchor); 4174 spin_lock_init(&data->txlock); 4175 4176 init_usb_anchor(&data->intr_anchor); 4177 init_usb_anchor(&data->bulk_anchor); 4178 init_usb_anchor(&data->isoc_anchor); 4179 init_usb_anchor(&data->diag_anchor); 4180 init_usb_anchor(&data->ctrl_anchor); 4181 spin_lock_init(&data->rxlock); 4182 4183 priv_size = 0; 4184 4185 data->recv_event = hci_recv_frame; 4186 data->recv_bulk = btusb_recv_bulk; 4187 4188 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4189 /* Allocate extra space for Intel device */ 4190 priv_size += sizeof(struct btintel_data); 4191 4192 /* Override the rx handlers */ 4193 data->recv_event = btusb_recv_event_intel; 4194 data->recv_bulk = btusb_recv_bulk_intel; 4195 } else if (id->driver_info & BTUSB_REALTEK) { 4196 /* Allocate extra space for Realtek device */ 4197 priv_size += sizeof(struct btrealtek_data); 4198 } 4199 4200 data->recv_acl = hci_recv_frame; 4201 4202 hdev = hci_alloc_dev_priv(priv_size); 4203 if (!hdev) 4204 return -ENOMEM; 4205 4206 hdev->bus = HCI_USB; 4207 hci_set_drvdata(hdev, data); 4208 4209 if (id->driver_info & BTUSB_AMP) 4210 hdev->dev_type = HCI_AMP; 4211 else 4212 hdev->dev_type = HCI_PRIMARY; 4213 4214 data->hdev = hdev; 4215 4216 SET_HCIDEV_DEV(hdev, &intf->dev); 4217 4218 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 4219 GPIOD_OUT_LOW); 4220 if (IS_ERR(reset_gpio)) { 4221 err = PTR_ERR(reset_gpio); 4222 goto out_free_dev; 4223 } else if (reset_gpio) { 4224 data->reset_gpio = reset_gpio; 4225 } 4226 4227 hdev->open = btusb_open; 4228 hdev->close = btusb_close; 4229 hdev->flush = btusb_flush; 4230 hdev->send = btusb_send_frame; 4231 hdev->notify = btusb_notify; 4232 hdev->wakeup = btusb_wakeup; 4233 4234 #ifdef CONFIG_PM 4235 err = btusb_config_oob_wake(hdev); 4236 if (err) 4237 goto out_free_dev; 4238 4239 /* Marvell devices may need a specific chip configuration */ 4240 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 4241 err = marvell_config_oob_wake(hdev); 4242 if (err) 4243 goto out_free_dev; 4244 } 4245 #endif 4246 if (id->driver_info & BTUSB_CW6622) 4247 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4248 4249 if (id->driver_info & BTUSB_BCM2045) 4250 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 4251 4252 if (id->driver_info & BTUSB_BCM92035) 4253 hdev->setup = btusb_setup_bcm92035; 4254 4255 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4256 (id->driver_info & BTUSB_BCM_PATCHRAM)) { 4257 hdev->manufacturer = 15; 4258 hdev->setup = btbcm_setup_patchram; 4259 hdev->set_diag = btusb_bcm_set_diag; 4260 hdev->set_bdaddr = btbcm_set_bdaddr; 4261 4262 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4263 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4264 } 4265 4266 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && 4267 (id->driver_info & BTUSB_BCM_APPLE)) { 4268 hdev->manufacturer = 15; 4269 hdev->setup = btbcm_setup_apple; 4270 hdev->set_diag = btusb_bcm_set_diag; 4271 4272 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 4273 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 4274 } 4275 4276 /* Combined Intel Device setup to support multiple setup routine */ 4277 if (id->driver_info & BTUSB_INTEL_COMBINED) { 4278 err = btintel_configure_setup(hdev, btusb_driver.name); 4279 if (err) 4280 goto out_free_dev; 4281 4282 /* Transport specific configuration */ 4283 hdev->send = btusb_send_frame_intel; 4284 hdev->cmd_timeout = btusb_intel_cmd_timeout; 4285 4286 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT) 4287 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT); 4288 4289 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD) 4290 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD); 4291 4292 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED) 4293 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED); 4294 } 4295 4296 if (id->driver_info & BTUSB_MARVELL) 4297 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 4298 4299 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && 4300 (id->driver_info & BTUSB_MEDIATEK)) { 4301 hdev->setup = btusb_mtk_setup; 4302 hdev->shutdown = btusb_mtk_shutdown; 4303 hdev->manufacturer = 70; 4304 hdev->cmd_timeout = btusb_mtk_cmd_timeout; 4305 hdev->set_bdaddr = btmtk_set_bdaddr; 4306 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks); 4307 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); 4308 data->recv_acl = btusb_recv_acl_mtk; 4309 } 4310 4311 if (id->driver_info & BTUSB_SWAVE) { 4312 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 4313 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 4314 } 4315 4316 if (id->driver_info & BTUSB_INTEL_BOOT) { 4317 hdev->manufacturer = 2; 4318 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4319 } 4320 4321 if (id->driver_info & BTUSB_ATH3012) { 4322 data->setup_on_usb = btusb_setup_qca; 4323 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4324 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4325 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 4326 } 4327 4328 if (id->driver_info & BTUSB_QCA_ROME) { 4329 data->setup_on_usb = btusb_setup_qca; 4330 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 4331 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4332 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4333 btusb_check_needs_reset_resume(intf); 4334 } 4335 4336 if (id->driver_info & BTUSB_QCA_WCN6855) { 4337 data->qca_dump.id_vendor = id->idVendor; 4338 data->qca_dump.id_product = id->idProduct; 4339 data->recv_event = btusb_recv_evt_qca; 4340 data->recv_acl = btusb_recv_acl_qca; 4341 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); 4342 data->setup_on_usb = btusb_setup_qca; 4343 hdev->shutdown = btusb_shutdown_qca; 4344 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; 4345 hdev->cmd_timeout = btusb_qca_cmd_timeout; 4346 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4347 hci_set_msft_opcode(hdev, 0xFD70); 4348 } 4349 4350 if (id->driver_info & BTUSB_AMP) { 4351 /* AMP controllers do not support SCO packets */ 4352 data->isoc = NULL; 4353 } else { 4354 /* Interface orders are hardcoded in the specification */ 4355 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 4356 data->isoc_ifnum = ifnum_base + 1; 4357 } 4358 4359 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && 4360 (id->driver_info & BTUSB_REALTEK)) { 4361 hdev->setup = btusb_setup_realtek; 4362 hdev->shutdown = btrtl_shutdown_realtek; 4363 hdev->cmd_timeout = btusb_rtl_cmd_timeout; 4364 4365 /* Realtek devices need to set remote wakeup on auto-suspend */ 4366 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags); 4367 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags); 4368 } 4369 4370 if (id->driver_info & BTUSB_ACTIONS_SEMI) { 4371 /* Support is advertised, but not implemented */ 4372 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); 4373 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 4374 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks); 4375 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks); 4376 } 4377 4378 if (!reset) 4379 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4380 4381 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 4382 if (!disable_scofix) 4383 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 4384 } 4385 4386 if (id->driver_info & BTUSB_BROKEN_ISOC) 4387 data->isoc = NULL; 4388 4389 if (id->driver_info & BTUSB_WIDEBAND_SPEECH) 4390 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); 4391 4392 if (id->driver_info & BTUSB_VALID_LE_STATES) 4393 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); 4394 4395 if (id->driver_info & BTUSB_DIGIANSWER) { 4396 data->cmdreq_type = USB_TYPE_VENDOR; 4397 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4398 } 4399 4400 if (id->driver_info & BTUSB_CSR) { 4401 struct usb_device *udev = data->udev; 4402 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 4403 4404 /* Old firmware would otherwise execute USB reset */ 4405 if (bcdDevice < 0x117) 4406 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 4407 4408 /* This must be set first in case we disable it for fakes */ 4409 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 4410 4411 /* Fake CSR devices with broken commands */ 4412 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && 4413 le16_to_cpu(udev->descriptor.idProduct) == 0x0001) 4414 hdev->setup = btusb_setup_csr; 4415 } 4416 4417 if (id->driver_info & BTUSB_SNIFFER) { 4418 struct usb_device *udev = data->udev; 4419 4420 /* New sniffer firmware has crippled HCI interface */ 4421 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 4422 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 4423 } 4424 4425 if (id->driver_info & BTUSB_INTEL_BOOT) { 4426 /* A bug in the bootloader causes that interrupt interface is 4427 * only enabled after receiving SetInterface(0, AltSetting=0). 4428 */ 4429 err = usb_set_interface(data->udev, 0, 0); 4430 if (err < 0) { 4431 BT_ERR("failed to set interface 0, alt 0 %d", err); 4432 goto out_free_dev; 4433 } 4434 } 4435 4436 if (data->isoc) { 4437 err = usb_driver_claim_interface(&btusb_driver, 4438 data->isoc, data); 4439 if (err < 0) 4440 goto out_free_dev; 4441 } 4442 4443 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { 4444 if (!usb_driver_claim_interface(&btusb_driver, 4445 data->diag, data)) 4446 __set_diag_interface(hdev); 4447 else 4448 data->diag = NULL; 4449 } 4450 4451 if (enable_autosuspend) 4452 usb_enable_autosuspend(data->udev); 4453 4454 data->poll_sync = enable_poll_sync; 4455 4456 err = hci_register_dev(hdev); 4457 if (err < 0) 4458 goto out_free_dev; 4459 4460 usb_set_intfdata(intf, data); 4461 4462 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, 4463 &force_poll_sync_fops); 4464 4465 return 0; 4466 4467 out_free_dev: 4468 if (data->reset_gpio) 4469 gpiod_put(data->reset_gpio); 4470 hci_free_dev(hdev); 4471 return err; 4472 } 4473 4474 static void btusb_disconnect(struct usb_interface *intf) 4475 { 4476 struct btusb_data *data = usb_get_intfdata(intf); 4477 struct hci_dev *hdev; 4478 4479 BT_DBG("intf %p", intf); 4480 4481 if (!data) 4482 return; 4483 4484 hdev = data->hdev; 4485 usb_set_intfdata(data->intf, NULL); 4486 4487 if (data->isoc) 4488 usb_set_intfdata(data->isoc, NULL); 4489 4490 if (data->diag) 4491 usb_set_intfdata(data->diag, NULL); 4492 4493 hci_unregister_dev(hdev); 4494 4495 if (intf == data->intf) { 4496 if (data->isoc) 4497 usb_driver_release_interface(&btusb_driver, data->isoc); 4498 if (data->diag) 4499 usb_driver_release_interface(&btusb_driver, data->diag); 4500 } else if (intf == data->isoc) { 4501 if (data->diag) 4502 usb_driver_release_interface(&btusb_driver, data->diag); 4503 usb_driver_release_interface(&btusb_driver, data->intf); 4504 } else if (intf == data->diag) { 4505 usb_driver_release_interface(&btusb_driver, data->intf); 4506 if (data->isoc) 4507 usb_driver_release_interface(&btusb_driver, data->isoc); 4508 } 4509 4510 if (data->oob_wake_irq) 4511 device_init_wakeup(&data->udev->dev, false); 4512 4513 if (data->reset_gpio) 4514 gpiod_put(data->reset_gpio); 4515 4516 hci_free_dev(hdev); 4517 } 4518 4519 #ifdef CONFIG_PM 4520 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 4521 { 4522 struct btusb_data *data = usb_get_intfdata(intf); 4523 4524 BT_DBG("intf %p", intf); 4525 4526 if (data->suspend_count++) 4527 return 0; 4528 4529 spin_lock_irq(&data->txlock); 4530 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 4531 set_bit(BTUSB_SUSPENDING, &data->flags); 4532 spin_unlock_irq(&data->txlock); 4533 } else { 4534 spin_unlock_irq(&data->txlock); 4535 data->suspend_count--; 4536 return -EBUSY; 4537 } 4538 4539 cancel_work_sync(&data->work); 4540 4541 btusb_stop_traffic(data); 4542 usb_kill_anchored_urbs(&data->tx_anchor); 4543 4544 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 4545 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 4546 enable_irq_wake(data->oob_wake_irq); 4547 enable_irq(data->oob_wake_irq); 4548 } 4549 4550 /* For global suspend, Realtek devices lose the loaded fw 4551 * in them. But for autosuspend, firmware should remain. 4552 * Actually, it depends on whether the usb host sends 4553 * set feature (enable wakeup) or not. 4554 */ 4555 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) { 4556 if (PMSG_IS_AUTO(message) && 4557 device_can_wakeup(&data->udev->dev)) 4558 data->udev->do_remote_wakeup = 1; 4559 else if (!PMSG_IS_AUTO(message) && 4560 !device_may_wakeup(&data->udev->dev)) { 4561 data->udev->do_remote_wakeup = 0; 4562 data->udev->reset_resume = 1; 4563 } 4564 } 4565 4566 return 0; 4567 } 4568 4569 static void play_deferred(struct btusb_data *data) 4570 { 4571 struct urb *urb; 4572 int err; 4573 4574 while ((urb = usb_get_from_anchor(&data->deferred))) { 4575 usb_anchor_urb(urb, &data->tx_anchor); 4576 4577 err = usb_submit_urb(urb, GFP_ATOMIC); 4578 if (err < 0) { 4579 if (err != -EPERM && err != -ENODEV) 4580 BT_ERR("%s urb %p submission failed (%d)", 4581 data->hdev->name, urb, -err); 4582 kfree(urb->setup_packet); 4583 usb_unanchor_urb(urb); 4584 usb_free_urb(urb); 4585 break; 4586 } 4587 4588 data->tx_in_flight++; 4589 usb_free_urb(urb); 4590 } 4591 4592 /* Cleanup the rest deferred urbs. */ 4593 while ((urb = usb_get_from_anchor(&data->deferred))) { 4594 kfree(urb->setup_packet); 4595 usb_free_urb(urb); 4596 } 4597 } 4598 4599 static int btusb_resume(struct usb_interface *intf) 4600 { 4601 struct btusb_data *data = usb_get_intfdata(intf); 4602 struct hci_dev *hdev = data->hdev; 4603 int err = 0; 4604 4605 BT_DBG("intf %p", intf); 4606 4607 if (--data->suspend_count) 4608 return 0; 4609 4610 /* Disable only if not already disabled (keep it balanced) */ 4611 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 4612 disable_irq(data->oob_wake_irq); 4613 disable_irq_wake(data->oob_wake_irq); 4614 } 4615 4616 if (!test_bit(HCI_RUNNING, &hdev->flags)) 4617 goto done; 4618 4619 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 4620 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 4621 if (err < 0) { 4622 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 4623 goto failed; 4624 } 4625 } 4626 4627 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 4628 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 4629 if (err < 0) { 4630 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 4631 goto failed; 4632 } 4633 4634 btusb_submit_bulk_urb(hdev, GFP_NOIO); 4635 } 4636 4637 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 4638 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 4639 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 4640 else 4641 btusb_submit_isoc_urb(hdev, GFP_NOIO); 4642 } 4643 4644 spin_lock_irq(&data->txlock); 4645 play_deferred(data); 4646 clear_bit(BTUSB_SUSPENDING, &data->flags); 4647 spin_unlock_irq(&data->txlock); 4648 schedule_work(&data->work); 4649 4650 return 0; 4651 4652 failed: 4653 usb_scuttle_anchored_urbs(&data->deferred); 4654 done: 4655 spin_lock_irq(&data->txlock); 4656 clear_bit(BTUSB_SUSPENDING, &data->flags); 4657 spin_unlock_irq(&data->txlock); 4658 4659 return err; 4660 } 4661 #endif 4662 4663 #ifdef CONFIG_DEV_COREDUMP 4664 static void btusb_coredump(struct device *dev) 4665 { 4666 struct btusb_data *data = dev_get_drvdata(dev); 4667 struct hci_dev *hdev = data->hdev; 4668 4669 if (hdev->dump.coredump) 4670 hdev->dump.coredump(hdev); 4671 } 4672 #endif 4673 4674 static struct usb_driver btusb_driver = { 4675 .name = "btusb", 4676 .probe = btusb_probe, 4677 .disconnect = btusb_disconnect, 4678 #ifdef CONFIG_PM 4679 .suspend = btusb_suspend, 4680 .resume = btusb_resume, 4681 #endif 4682 .id_table = btusb_table, 4683 .supports_autosuspend = 1, 4684 .disable_hub_initiated_lpm = 1, 4685 4686 #ifdef CONFIG_DEV_COREDUMP 4687 .drvwrap = { 4688 .driver = { 4689 .coredump = btusb_coredump, 4690 }, 4691 }, 4692 #endif 4693 }; 4694 4695 module_usb_driver(btusb_driver); 4696 4697 module_param(disable_scofix, bool, 0644); 4698 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 4699 4700 module_param(force_scofix, bool, 0644); 4701 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 4702 4703 module_param(enable_autosuspend, bool, 0644); 4704 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 4705 4706 module_param(reset, bool, 0644); 4707 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 4708 4709 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 4710 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 4711 MODULE_VERSION(VERSION); 4712 MODULE_LICENSE("GPL"); 4713