1/* 2 * 3 * Generic Bluetooth USB driver 4 * 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 6 * 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24#include <linux/module.h> 25#include <linux/usb.h> 26#include <linux/firmware.h> 27#include <asm/unaligned.h> 28 29#include <net/bluetooth/bluetooth.h> 30#include <net/bluetooth/hci_core.h> 31 32#include "btintel.h" 33#include "btbcm.h" 34#include "btrtl.h" 35 36#define VERSION "0.8" 37 38static bool disable_scofix; 39static bool force_scofix; 40 41static bool reset = true; 42 43static struct usb_driver btusb_driver; 44 45#define BTUSB_IGNORE 0x01 46#define BTUSB_DIGIANSWER 0x02 47#define BTUSB_CSR 0x04 48#define BTUSB_SNIFFER 0x08 49#define BTUSB_BCM92035 0x10 50#define BTUSB_BROKEN_ISOC 0x20 51#define BTUSB_WRONG_SCO_MTU 0x40 52#define BTUSB_ATH3012 0x80 53#define BTUSB_INTEL 0x100 54#define BTUSB_INTEL_BOOT 0x200 55#define BTUSB_BCM_PATCHRAM 0x400 56#define BTUSB_MARVELL 0x800 57#define BTUSB_SWAVE 0x1000 58#define BTUSB_INTEL_NEW 0x2000 59#define BTUSB_AMP 0x4000 60#define BTUSB_QCA_ROME 0x8000 61#define BTUSB_BCM_APPLE 0x10000 62#define BTUSB_REALTEK 0x20000 63#define BTUSB_BCM2045 0x40000 64#define BTUSB_IFNUM_2 0x80000 65 66static const struct usb_device_id btusb_table[] = { 67 /* Generic Bluetooth USB device */ 68 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 69 70 /* Generic Bluetooth AMP device */ 71 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 72 73 /* Generic Bluetooth USB interface */ 74 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 75 76 /* Apple-specific (Broadcom) devices */ 77 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 78 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 79 80 /* MediaTek MT76x0E */ 81 { USB_DEVICE(0x0e8d, 0x763f) }, 82 83 /* Broadcom SoftSailing reporting vendor specific */ 84 { USB_DEVICE(0x0a5c, 0x21e1) }, 85 86 /* Apple MacBookPro 7,1 */ 87 { USB_DEVICE(0x05ac, 0x8213) }, 88 89 /* Apple iMac11,1 */ 90 { USB_DEVICE(0x05ac, 0x8215) }, 91 92 /* Apple MacBookPro6,2 */ 93 { USB_DEVICE(0x05ac, 0x8218) }, 94 95 /* Apple MacBookAir3,1, MacBookAir3,2 */ 96 { USB_DEVICE(0x05ac, 0x821b) }, 97 98 /* Apple MacBookAir4,1 */ 99 { USB_DEVICE(0x05ac, 0x821f) }, 100 101 /* Apple MacBookPro8,2 */ 102 { USB_DEVICE(0x05ac, 0x821a) }, 103 104 /* Apple MacMini5,1 */ 105 { USB_DEVICE(0x05ac, 0x8281) }, 106 107 /* AVM BlueFRITZ! USB v2.0 */ 108 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 109 110 /* Bluetooth Ultraport Module from IBM */ 111 { USB_DEVICE(0x04bf, 0x030a) }, 112 113 /* ALPS Modules with non-standard id */ 114 { USB_DEVICE(0x044e, 0x3001) }, 115 { USB_DEVICE(0x044e, 0x3002) }, 116 117 /* Ericsson with non-standard id */ 118 { USB_DEVICE(0x0bdb, 0x1002) }, 119 120 /* Canyon CN-BTU1 with HID interfaces */ 121 { USB_DEVICE(0x0c10, 0x0000) }, 122 123 /* Broadcom BCM20702A0 */ 124 { USB_DEVICE(0x413c, 0x8197) }, 125 126 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 128 129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 130 { USB_DEVICE(0x105b, 0xe065), .driver_info = BTUSB_BCM_PATCHRAM }, 131 132 /* Foxconn - Hon Hai */ 133 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 134 .driver_info = BTUSB_BCM_PATCHRAM }, 135 136 /* Lite-On Technology - Broadcom based */ 137 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 138 .driver_info = BTUSB_BCM_PATCHRAM }, 139 140 /* Broadcom devices with vendor specific id */ 141 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 142 .driver_info = BTUSB_BCM_PATCHRAM }, 143 144 /* ASUSTek Computer - Broadcom based */ 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 146 .driver_info = BTUSB_BCM_PATCHRAM }, 147 148 /* Belkin F8065bf - Broadcom based */ 149 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 150 .driver_info = BTUSB_BCM_PATCHRAM }, 151 152 /* IMC Networks - Broadcom based */ 153 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 154 .driver_info = BTUSB_BCM_PATCHRAM }, 155 156 /* Toshiba Corp - Broadcom based */ 157 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 158 .driver_info = BTUSB_BCM_PATCHRAM }, 159 160 /* Intel Bluetooth USB Bootloader (RAM module) */ 161 { USB_DEVICE(0x8087, 0x0a5a), 162 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 163 164 { } /* Terminating entry */ 165}; 166 167MODULE_DEVICE_TABLE(usb, btusb_table); 168 169static const struct usb_device_id blacklist_table[] = { 170 /* CSR BlueCore devices */ 171 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 172 173 /* Broadcom BCM2033 without firmware */ 174 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 175 176 /* Broadcom BCM2045 devices */ 177 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 178 179 /* Atheros 3011 with sflash firmware */ 180 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 181 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 182 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 183 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 184 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 185 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 186 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 187 188 /* Atheros AR9285 Malbec with sflash firmware */ 189 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 190 191 /* Atheros 3012 with sflash firmware */ 192 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 193 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 194 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 195 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 196 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 197 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 198 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 199 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 200 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 201 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 239 240 /* Atheros AR5BBU12 with sflash firmware */ 241 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 242 243 /* Atheros AR5BBU12 with sflash firmware */ 244 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 246 247 /* QCA ROME chipset */ 248 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 249 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 250 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 251 252 /* Broadcom BCM2035 */ 253 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 254 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 255 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 256 257 /* Broadcom BCM2045 */ 258 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 259 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 260 261 /* IBM/Lenovo ThinkPad with Broadcom chip */ 262 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 263 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 264 265 /* HP laptop with Broadcom chip */ 266 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 267 268 /* Dell laptop with Broadcom chip */ 269 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 270 271 /* Dell Wireless 370 and 410 devices */ 272 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 273 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 274 275 /* Belkin F8T012 and F8T013 devices */ 276 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 277 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 278 279 /* Asus WL-BTD202 device */ 280 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 281 282 /* Kensington Bluetooth USB adapter */ 283 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 284 285 /* RTX Telecom based adapters with buggy SCO support */ 286 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 287 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 288 289 /* CONWISE Technology based adapters with buggy SCO support */ 290 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, 291 292 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 293 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 294 295 /* Digianswer devices */ 296 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 297 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 298 299 /* CSR BlueCore Bluetooth Sniffer */ 300 { USB_DEVICE(0x0a12, 0x0002), 301 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 302 303 /* Frontline ComProbe Bluetooth Sniffer */ 304 { USB_DEVICE(0x16d3, 0x0002), 305 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 306 307 /* Marvell Bluetooth devices */ 308 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 309 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 310 311 /* Intel Bluetooth devices */ 312 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 313 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 314 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 315 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 316 317 /* Other Intel Bluetooth devices */ 318 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 319 .driver_info = BTUSB_IGNORE }, 320 321 /* Realtek Bluetooth devices */ 322 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 323 .driver_info = BTUSB_REALTEK }, 324 325 /* Additional Realtek 8723AE Bluetooth devices */ 326 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 327 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 328 329 /* Additional Realtek 8723BE Bluetooth devices */ 330 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 331 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 332 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 333 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 334 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 335 336 /* Additional Realtek 8821AE Bluetooth devices */ 337 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 338 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 339 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 340 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 341 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 342 343 /* Silicon Wave based devices */ 344 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 345 346 { } /* Terminating entry */ 347}; 348 349#define BTUSB_MAX_ISOC_FRAMES 10 350 351#define BTUSB_INTR_RUNNING 0 352#define BTUSB_BULK_RUNNING 1 353#define BTUSB_ISOC_RUNNING 2 354#define BTUSB_SUSPENDING 3 355#define BTUSB_DID_ISO_RESUME 4 356#define BTUSB_BOOTLOADER 5 357#define BTUSB_DOWNLOADING 6 358#define BTUSB_FIRMWARE_LOADED 7 359#define BTUSB_FIRMWARE_FAILED 8 360#define BTUSB_BOOTING 9 361#define BTUSB_RESET_RESUME 10 362#define BTUSB_DIAG_RUNNING 11 363 364struct btusb_data { 365 struct hci_dev *hdev; 366 struct usb_device *udev; 367 struct usb_interface *intf; 368 struct usb_interface *isoc; 369 struct usb_interface *diag; 370 371 unsigned long flags; 372 373 struct work_struct work; 374 struct work_struct waker; 375 376 struct usb_anchor deferred; 377 struct usb_anchor tx_anchor; 378 int tx_in_flight; 379 spinlock_t txlock; 380 381 struct usb_anchor intr_anchor; 382 struct usb_anchor bulk_anchor; 383 struct usb_anchor isoc_anchor; 384 struct usb_anchor diag_anchor; 385 spinlock_t rxlock; 386 387 struct sk_buff *evt_skb; 388 struct sk_buff *acl_skb; 389 struct sk_buff *sco_skb; 390 391 struct usb_endpoint_descriptor *intr_ep; 392 struct usb_endpoint_descriptor *bulk_tx_ep; 393 struct usb_endpoint_descriptor *bulk_rx_ep; 394 struct usb_endpoint_descriptor *isoc_tx_ep; 395 struct usb_endpoint_descriptor *isoc_rx_ep; 396 struct usb_endpoint_descriptor *diag_tx_ep; 397 struct usb_endpoint_descriptor *diag_rx_ep; 398 399 __u8 cmdreq_type; 400 __u8 cmdreq; 401 402 unsigned int sco_num; 403 int isoc_altsetting; 404 int suspend_count; 405 406 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 407 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 408 409 int (*setup_on_usb)(struct hci_dev *hdev); 410}; 411 412static inline void btusb_free_frags(struct btusb_data *data) 413{ 414 unsigned long flags; 415 416 spin_lock_irqsave(&data->rxlock, flags); 417 418 kfree_skb(data->evt_skb); 419 data->evt_skb = NULL; 420 421 kfree_skb(data->acl_skb); 422 data->acl_skb = NULL; 423 424 kfree_skb(data->sco_skb); 425 data->sco_skb = NULL; 426 427 spin_unlock_irqrestore(&data->rxlock, flags); 428} 429 430static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 431{ 432 struct sk_buff *skb; 433 int err = 0; 434 435 spin_lock(&data->rxlock); 436 skb = data->evt_skb; 437 438 while (count) { 439 int len; 440 441 if (!skb) { 442 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 443 if (!skb) { 444 err = -ENOMEM; 445 break; 446 } 447 448 bt_cb(skb)->pkt_type = HCI_EVENT_PKT; 449 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE; 450 } 451 452 len = min_t(uint, bt_cb(skb)->expect, count); 453 memcpy(skb_put(skb, len), buffer, len); 454 455 count -= len; 456 buffer += len; 457 bt_cb(skb)->expect -= len; 458 459 if (skb->len == HCI_EVENT_HDR_SIZE) { 460 /* Complete event header */ 461 bt_cb(skb)->expect = hci_event_hdr(skb)->plen; 462 463 if (skb_tailroom(skb) < bt_cb(skb)->expect) { 464 kfree_skb(skb); 465 skb = NULL; 466 467 err = -EILSEQ; 468 break; 469 } 470 } 471 472 if (bt_cb(skb)->expect == 0) { 473 /* Complete frame */ 474 data->recv_event(data->hdev, skb); 475 skb = NULL; 476 } 477 } 478 479 data->evt_skb = skb; 480 spin_unlock(&data->rxlock); 481 482 return err; 483} 484 485static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 486{ 487 struct sk_buff *skb; 488 int err = 0; 489 490 spin_lock(&data->rxlock); 491 skb = data->acl_skb; 492 493 while (count) { 494 int len; 495 496 if (!skb) { 497 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 498 if (!skb) { 499 err = -ENOMEM; 500 break; 501 } 502 503 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; 504 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE; 505 } 506 507 len = min_t(uint, bt_cb(skb)->expect, count); 508 memcpy(skb_put(skb, len), buffer, len); 509 510 count -= len; 511 buffer += len; 512 bt_cb(skb)->expect -= len; 513 514 if (skb->len == HCI_ACL_HDR_SIZE) { 515 __le16 dlen = hci_acl_hdr(skb)->dlen; 516 517 /* Complete ACL header */ 518 bt_cb(skb)->expect = __le16_to_cpu(dlen); 519 520 if (skb_tailroom(skb) < bt_cb(skb)->expect) { 521 kfree_skb(skb); 522 skb = NULL; 523 524 err = -EILSEQ; 525 break; 526 } 527 } 528 529 if (bt_cb(skb)->expect == 0) { 530 /* Complete frame */ 531 hci_recv_frame(data->hdev, skb); 532 skb = NULL; 533 } 534 } 535 536 data->acl_skb = skb; 537 spin_unlock(&data->rxlock); 538 539 return err; 540} 541 542static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 543{ 544 struct sk_buff *skb; 545 int err = 0; 546 547 spin_lock(&data->rxlock); 548 skb = data->sco_skb; 549 550 while (count) { 551 int len; 552 553 if (!skb) { 554 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 555 if (!skb) { 556 err = -ENOMEM; 557 break; 558 } 559 560 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT; 561 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE; 562 } 563 564 len = min_t(uint, bt_cb(skb)->expect, count); 565 memcpy(skb_put(skb, len), buffer, len); 566 567 count -= len; 568 buffer += len; 569 bt_cb(skb)->expect -= len; 570 571 if (skb->len == HCI_SCO_HDR_SIZE) { 572 /* Complete SCO header */ 573 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen; 574 575 if (skb_tailroom(skb) < bt_cb(skb)->expect) { 576 kfree_skb(skb); 577 skb = NULL; 578 579 err = -EILSEQ; 580 break; 581 } 582 } 583 584 if (bt_cb(skb)->expect == 0) { 585 /* Complete frame */ 586 hci_recv_frame(data->hdev, skb); 587 skb = NULL; 588 } 589 } 590 591 data->sco_skb = skb; 592 spin_unlock(&data->rxlock); 593 594 return err; 595} 596 597static void btusb_intr_complete(struct urb *urb) 598{ 599 struct hci_dev *hdev = urb->context; 600 struct btusb_data *data = hci_get_drvdata(hdev); 601 int err; 602 603 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 604 urb->actual_length); 605 606 if (!test_bit(HCI_RUNNING, &hdev->flags)) 607 return; 608 609 if (urb->status == 0) { 610 hdev->stat.byte_rx += urb->actual_length; 611 612 if (btusb_recv_intr(data, urb->transfer_buffer, 613 urb->actual_length) < 0) { 614 BT_ERR("%s corrupted event packet", hdev->name); 615 hdev->stat.err_rx++; 616 } 617 } else if (urb->status == -ENOENT) { 618 /* Avoid suspend failed when usb_kill_urb */ 619 return; 620 } 621 622 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 623 return; 624 625 usb_mark_last_busy(data->udev); 626 usb_anchor_urb(urb, &data->intr_anchor); 627 628 err = usb_submit_urb(urb, GFP_ATOMIC); 629 if (err < 0) { 630 /* -EPERM: urb is being killed; 631 * -ENODEV: device got disconnected */ 632 if (err != -EPERM && err != -ENODEV) 633 BT_ERR("%s urb %p failed to resubmit (%d)", 634 hdev->name, urb, -err); 635 usb_unanchor_urb(urb); 636 } 637} 638 639static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 640{ 641 struct btusb_data *data = hci_get_drvdata(hdev); 642 struct urb *urb; 643 unsigned char *buf; 644 unsigned int pipe; 645 int err, size; 646 647 BT_DBG("%s", hdev->name); 648 649 if (!data->intr_ep) 650 return -ENODEV; 651 652 urb = usb_alloc_urb(0, mem_flags); 653 if (!urb) 654 return -ENOMEM; 655 656 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 657 658 buf = kmalloc(size, mem_flags); 659 if (!buf) { 660 usb_free_urb(urb); 661 return -ENOMEM; 662 } 663 664 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 665 666 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 667 btusb_intr_complete, hdev, data->intr_ep->bInterval); 668 669 urb->transfer_flags |= URB_FREE_BUFFER; 670 671 usb_anchor_urb(urb, &data->intr_anchor); 672 673 err = usb_submit_urb(urb, mem_flags); 674 if (err < 0) { 675 if (err != -EPERM && err != -ENODEV) 676 BT_ERR("%s urb %p submission failed (%d)", 677 hdev->name, urb, -err); 678 usb_unanchor_urb(urb); 679 } 680 681 usb_free_urb(urb); 682 683 return err; 684} 685 686static void btusb_bulk_complete(struct urb *urb) 687{ 688 struct hci_dev *hdev = urb->context; 689 struct btusb_data *data = hci_get_drvdata(hdev); 690 int err; 691 692 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 693 urb->actual_length); 694 695 if (!test_bit(HCI_RUNNING, &hdev->flags)) 696 return; 697 698 if (urb->status == 0) { 699 hdev->stat.byte_rx += urb->actual_length; 700 701 if (data->recv_bulk(data, urb->transfer_buffer, 702 urb->actual_length) < 0) { 703 BT_ERR("%s corrupted ACL packet", hdev->name); 704 hdev->stat.err_rx++; 705 } 706 } else if (urb->status == -ENOENT) { 707 /* Avoid suspend failed when usb_kill_urb */ 708 return; 709 } 710 711 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 712 return; 713 714 usb_anchor_urb(urb, &data->bulk_anchor); 715 usb_mark_last_busy(data->udev); 716 717 err = usb_submit_urb(urb, GFP_ATOMIC); 718 if (err < 0) { 719 /* -EPERM: urb is being killed; 720 * -ENODEV: device got disconnected */ 721 if (err != -EPERM && err != -ENODEV) 722 BT_ERR("%s urb %p failed to resubmit (%d)", 723 hdev->name, urb, -err); 724 usb_unanchor_urb(urb); 725 } 726} 727 728static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 729{ 730 struct btusb_data *data = hci_get_drvdata(hdev); 731 struct urb *urb; 732 unsigned char *buf; 733 unsigned int pipe; 734 int err, size = HCI_MAX_FRAME_SIZE; 735 736 BT_DBG("%s", hdev->name); 737 738 if (!data->bulk_rx_ep) 739 return -ENODEV; 740 741 urb = usb_alloc_urb(0, mem_flags); 742 if (!urb) 743 return -ENOMEM; 744 745 buf = kmalloc(size, mem_flags); 746 if (!buf) { 747 usb_free_urb(urb); 748 return -ENOMEM; 749 } 750 751 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 752 753 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 754 btusb_bulk_complete, hdev); 755 756 urb->transfer_flags |= URB_FREE_BUFFER; 757 758 usb_mark_last_busy(data->udev); 759 usb_anchor_urb(urb, &data->bulk_anchor); 760 761 err = usb_submit_urb(urb, mem_flags); 762 if (err < 0) { 763 if (err != -EPERM && err != -ENODEV) 764 BT_ERR("%s urb %p submission failed (%d)", 765 hdev->name, urb, -err); 766 usb_unanchor_urb(urb); 767 } 768 769 usb_free_urb(urb); 770 771 return err; 772} 773 774static void btusb_isoc_complete(struct urb *urb) 775{ 776 struct hci_dev *hdev = urb->context; 777 struct btusb_data *data = hci_get_drvdata(hdev); 778 int i, err; 779 780 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 781 urb->actual_length); 782 783 if (!test_bit(HCI_RUNNING, &hdev->flags)) 784 return; 785 786 if (urb->status == 0) { 787 for (i = 0; i < urb->number_of_packets; i++) { 788 unsigned int offset = urb->iso_frame_desc[i].offset; 789 unsigned int length = urb->iso_frame_desc[i].actual_length; 790 791 if (urb->iso_frame_desc[i].status) 792 continue; 793 794 hdev->stat.byte_rx += length; 795 796 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 797 length) < 0) { 798 BT_ERR("%s corrupted SCO packet", hdev->name); 799 hdev->stat.err_rx++; 800 } 801 } 802 } else if (urb->status == -ENOENT) { 803 /* Avoid suspend failed when usb_kill_urb */ 804 return; 805 } 806 807 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 808 return; 809 810 usb_anchor_urb(urb, &data->isoc_anchor); 811 812 err = usb_submit_urb(urb, GFP_ATOMIC); 813 if (err < 0) { 814 /* -EPERM: urb is being killed; 815 * -ENODEV: device got disconnected */ 816 if (err != -EPERM && err != -ENODEV) 817 BT_ERR("%s urb %p failed to resubmit (%d)", 818 hdev->name, urb, -err); 819 usb_unanchor_urb(urb); 820 } 821} 822 823static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 824{ 825 int i, offset = 0; 826 827 BT_DBG("len %d mtu %d", len, mtu); 828 829 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 830 i++, offset += mtu, len -= mtu) { 831 urb->iso_frame_desc[i].offset = offset; 832 urb->iso_frame_desc[i].length = mtu; 833 } 834 835 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 836 urb->iso_frame_desc[i].offset = offset; 837 urb->iso_frame_desc[i].length = len; 838 i++; 839 } 840 841 urb->number_of_packets = i; 842} 843 844static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 845{ 846 struct btusb_data *data = hci_get_drvdata(hdev); 847 struct urb *urb; 848 unsigned char *buf; 849 unsigned int pipe; 850 int err, size; 851 852 BT_DBG("%s", hdev->name); 853 854 if (!data->isoc_rx_ep) 855 return -ENODEV; 856 857 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 858 if (!urb) 859 return -ENOMEM; 860 861 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 862 BTUSB_MAX_ISOC_FRAMES; 863 864 buf = kmalloc(size, mem_flags); 865 if (!buf) { 866 usb_free_urb(urb); 867 return -ENOMEM; 868 } 869 870 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 871 872 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 873 hdev, data->isoc_rx_ep->bInterval); 874 875 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 876 877 __fill_isoc_descriptor(urb, size, 878 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 879 880 usb_anchor_urb(urb, &data->isoc_anchor); 881 882 err = usb_submit_urb(urb, mem_flags); 883 if (err < 0) { 884 if (err != -EPERM && err != -ENODEV) 885 BT_ERR("%s urb %p submission failed (%d)", 886 hdev->name, urb, -err); 887 usb_unanchor_urb(urb); 888 } 889 890 usb_free_urb(urb); 891 892 return err; 893} 894 895static void btusb_diag_complete(struct urb *urb) 896{ 897 struct hci_dev *hdev = urb->context; 898 struct btusb_data *data = hci_get_drvdata(hdev); 899 int err; 900 901 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 902 urb->actual_length); 903 904 if (urb->status == 0) { 905 struct sk_buff *skb; 906 907 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 908 if (skb) { 909 memcpy(skb_put(skb, urb->actual_length), 910 urb->transfer_buffer, urb->actual_length); 911 hci_recv_diag(hdev, skb); 912 } 913 } else if (urb->status == -ENOENT) { 914 /* Avoid suspend failed when usb_kill_urb */ 915 return; 916 } 917 918 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 919 return; 920 921 usb_anchor_urb(urb, &data->diag_anchor); 922 usb_mark_last_busy(data->udev); 923 924 err = usb_submit_urb(urb, GFP_ATOMIC); 925 if (err < 0) { 926 /* -EPERM: urb is being killed; 927 * -ENODEV: device got disconnected */ 928 if (err != -EPERM && err != -ENODEV) 929 BT_ERR("%s urb %p failed to resubmit (%d)", 930 hdev->name, urb, -err); 931 usb_unanchor_urb(urb); 932 } 933} 934 935static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 936{ 937 struct btusb_data *data = hci_get_drvdata(hdev); 938 struct urb *urb; 939 unsigned char *buf; 940 unsigned int pipe; 941 int err, size = HCI_MAX_FRAME_SIZE; 942 943 BT_DBG("%s", hdev->name); 944 945 if (!data->diag_rx_ep) 946 return -ENODEV; 947 948 urb = usb_alloc_urb(0, mem_flags); 949 if (!urb) 950 return -ENOMEM; 951 952 buf = kmalloc(size, mem_flags); 953 if (!buf) { 954 usb_free_urb(urb); 955 return -ENOMEM; 956 } 957 958 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 959 960 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 961 btusb_diag_complete, hdev); 962 963 urb->transfer_flags |= URB_FREE_BUFFER; 964 965 usb_mark_last_busy(data->udev); 966 usb_anchor_urb(urb, &data->diag_anchor); 967 968 err = usb_submit_urb(urb, mem_flags); 969 if (err < 0) { 970 if (err != -EPERM && err != -ENODEV) 971 BT_ERR("%s urb %p submission failed (%d)", 972 hdev->name, urb, -err); 973 usb_unanchor_urb(urb); 974 } 975 976 usb_free_urb(urb); 977 978 return err; 979} 980 981static void btusb_tx_complete(struct urb *urb) 982{ 983 struct sk_buff *skb = urb->context; 984 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 985 struct btusb_data *data = hci_get_drvdata(hdev); 986 987 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 988 urb->actual_length); 989 990 if (!test_bit(HCI_RUNNING, &hdev->flags)) 991 goto done; 992 993 if (!urb->status) 994 hdev->stat.byte_tx += urb->transfer_buffer_length; 995 else 996 hdev->stat.err_tx++; 997 998done: 999 spin_lock(&data->txlock); 1000 data->tx_in_flight--; 1001 spin_unlock(&data->txlock); 1002 1003 kfree(urb->setup_packet); 1004 1005 kfree_skb(skb); 1006} 1007 1008static void btusb_isoc_tx_complete(struct urb *urb) 1009{ 1010 struct sk_buff *skb = urb->context; 1011 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1012 1013 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1014 urb->actual_length); 1015 1016 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1017 goto done; 1018 1019 if (!urb->status) 1020 hdev->stat.byte_tx += urb->transfer_buffer_length; 1021 else 1022 hdev->stat.err_tx++; 1023 1024done: 1025 kfree(urb->setup_packet); 1026 1027 kfree_skb(skb); 1028} 1029 1030static int btusb_open(struct hci_dev *hdev) 1031{ 1032 struct btusb_data *data = hci_get_drvdata(hdev); 1033 int err; 1034 1035 BT_DBG("%s", hdev->name); 1036 1037 /* Patching USB firmware files prior to starting any URBs of HCI path 1038 * It is more safe to use USB bulk channel for downloading USB patch 1039 */ 1040 if (data->setup_on_usb) { 1041 err = data->setup_on_usb(hdev); 1042 if (err < 0) 1043 return err; 1044 } 1045 1046 err = usb_autopm_get_interface(data->intf); 1047 if (err < 0) 1048 return err; 1049 1050 data->intf->needs_remote_wakeup = 1; 1051 1052 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1053 goto done; 1054 1055 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1056 if (err < 0) 1057 goto failed; 1058 1059 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1060 if (err < 0) { 1061 usb_kill_anchored_urbs(&data->intr_anchor); 1062 goto failed; 1063 } 1064 1065 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1066 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1067 1068 if (data->diag) { 1069 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1070 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1071 } 1072 1073done: 1074 usb_autopm_put_interface(data->intf); 1075 return 0; 1076 1077failed: 1078 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1079 usb_autopm_put_interface(data->intf); 1080 return err; 1081} 1082 1083static void btusb_stop_traffic(struct btusb_data *data) 1084{ 1085 usb_kill_anchored_urbs(&data->intr_anchor); 1086 usb_kill_anchored_urbs(&data->bulk_anchor); 1087 usb_kill_anchored_urbs(&data->isoc_anchor); 1088 usb_kill_anchored_urbs(&data->diag_anchor); 1089} 1090 1091static int btusb_close(struct hci_dev *hdev) 1092{ 1093 struct btusb_data *data = hci_get_drvdata(hdev); 1094 int err; 1095 1096 BT_DBG("%s", hdev->name); 1097 1098 cancel_work_sync(&data->work); 1099 cancel_work_sync(&data->waker); 1100 1101 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1102 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1103 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1104 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1105 1106 btusb_stop_traffic(data); 1107 btusb_free_frags(data); 1108 1109 err = usb_autopm_get_interface(data->intf); 1110 if (err < 0) 1111 goto failed; 1112 1113 data->intf->needs_remote_wakeup = 0; 1114 usb_autopm_put_interface(data->intf); 1115 1116failed: 1117 usb_scuttle_anchored_urbs(&data->deferred); 1118 return 0; 1119} 1120 1121static int btusb_flush(struct hci_dev *hdev) 1122{ 1123 struct btusb_data *data = hci_get_drvdata(hdev); 1124 1125 BT_DBG("%s", hdev->name); 1126 1127 usb_kill_anchored_urbs(&data->tx_anchor); 1128 btusb_free_frags(data); 1129 1130 return 0; 1131} 1132 1133static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1134{ 1135 struct btusb_data *data = hci_get_drvdata(hdev); 1136 struct usb_ctrlrequest *dr; 1137 struct urb *urb; 1138 unsigned int pipe; 1139 1140 urb = usb_alloc_urb(0, GFP_KERNEL); 1141 if (!urb) 1142 return ERR_PTR(-ENOMEM); 1143 1144 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1145 if (!dr) { 1146 usb_free_urb(urb); 1147 return ERR_PTR(-ENOMEM); 1148 } 1149 1150 dr->bRequestType = data->cmdreq_type; 1151 dr->bRequest = data->cmdreq; 1152 dr->wIndex = 0; 1153 dr->wValue = 0; 1154 dr->wLength = __cpu_to_le16(skb->len); 1155 1156 pipe = usb_sndctrlpipe(data->udev, 0x00); 1157 1158 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1159 skb->data, skb->len, btusb_tx_complete, skb); 1160 1161 skb->dev = (void *)hdev; 1162 1163 return urb; 1164} 1165 1166static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1167{ 1168 struct btusb_data *data = hci_get_drvdata(hdev); 1169 struct urb *urb; 1170 unsigned int pipe; 1171 1172 if (!data->bulk_tx_ep) 1173 return ERR_PTR(-ENODEV); 1174 1175 urb = usb_alloc_urb(0, GFP_KERNEL); 1176 if (!urb) 1177 return ERR_PTR(-ENOMEM); 1178 1179 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1180 1181 usb_fill_bulk_urb(urb, data->udev, pipe, 1182 skb->data, skb->len, btusb_tx_complete, skb); 1183 1184 skb->dev = (void *)hdev; 1185 1186 return urb; 1187} 1188 1189static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1190{ 1191 struct btusb_data *data = hci_get_drvdata(hdev); 1192 struct urb *urb; 1193 unsigned int pipe; 1194 1195 if (!data->isoc_tx_ep) 1196 return ERR_PTR(-ENODEV); 1197 1198 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1199 if (!urb) 1200 return ERR_PTR(-ENOMEM); 1201 1202 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1203 1204 usb_fill_int_urb(urb, data->udev, pipe, 1205 skb->data, skb->len, btusb_isoc_tx_complete, 1206 skb, data->isoc_tx_ep->bInterval); 1207 1208 urb->transfer_flags = URB_ISO_ASAP; 1209 1210 __fill_isoc_descriptor(urb, skb->len, 1211 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1212 1213 skb->dev = (void *)hdev; 1214 1215 return urb; 1216} 1217 1218static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1219{ 1220 struct btusb_data *data = hci_get_drvdata(hdev); 1221 int err; 1222 1223 usb_anchor_urb(urb, &data->tx_anchor); 1224 1225 err = usb_submit_urb(urb, GFP_KERNEL); 1226 if (err < 0) { 1227 if (err != -EPERM && err != -ENODEV) 1228 BT_ERR("%s urb %p submission failed (%d)", 1229 hdev->name, urb, -err); 1230 kfree(urb->setup_packet); 1231 usb_unanchor_urb(urb); 1232 } else { 1233 usb_mark_last_busy(data->udev); 1234 } 1235 1236 usb_free_urb(urb); 1237 return err; 1238} 1239 1240static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1241{ 1242 struct btusb_data *data = hci_get_drvdata(hdev); 1243 unsigned long flags; 1244 bool suspending; 1245 1246 spin_lock_irqsave(&data->txlock, flags); 1247 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1248 if (!suspending) 1249 data->tx_in_flight++; 1250 spin_unlock_irqrestore(&data->txlock, flags); 1251 1252 if (!suspending) 1253 return submit_tx_urb(hdev, urb); 1254 1255 usb_anchor_urb(urb, &data->deferred); 1256 schedule_work(&data->waker); 1257 1258 usb_free_urb(urb); 1259 return 0; 1260} 1261 1262static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1263{ 1264 struct urb *urb; 1265 1266 BT_DBG("%s", hdev->name); 1267 1268 switch (bt_cb(skb)->pkt_type) { 1269 case HCI_COMMAND_PKT: 1270 urb = alloc_ctrl_urb(hdev, skb); 1271 if (IS_ERR(urb)) 1272 return PTR_ERR(urb); 1273 1274 hdev->stat.cmd_tx++; 1275 return submit_or_queue_tx_urb(hdev, urb); 1276 1277 case HCI_ACLDATA_PKT: 1278 urb = alloc_bulk_urb(hdev, skb); 1279 if (IS_ERR(urb)) 1280 return PTR_ERR(urb); 1281 1282 hdev->stat.acl_tx++; 1283 return submit_or_queue_tx_urb(hdev, urb); 1284 1285 case HCI_SCODATA_PKT: 1286 if (hci_conn_num(hdev, SCO_LINK) < 1) 1287 return -ENODEV; 1288 1289 urb = alloc_isoc_urb(hdev, skb); 1290 if (IS_ERR(urb)) 1291 return PTR_ERR(urb); 1292 1293 hdev->stat.sco_tx++; 1294 return submit_tx_urb(hdev, urb); 1295 } 1296 1297 return -EILSEQ; 1298} 1299 1300static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1301{ 1302 struct btusb_data *data = hci_get_drvdata(hdev); 1303 1304 BT_DBG("%s evt %d", hdev->name, evt); 1305 1306 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1307 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1308 schedule_work(&data->work); 1309 } 1310} 1311 1312static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1313{ 1314 struct btusb_data *data = hci_get_drvdata(hdev); 1315 struct usb_interface *intf = data->isoc; 1316 struct usb_endpoint_descriptor *ep_desc; 1317 int i, err; 1318 1319 if (!data->isoc) 1320 return -ENODEV; 1321 1322 err = usb_set_interface(data->udev, 1, altsetting); 1323 if (err < 0) { 1324 BT_ERR("%s setting interface failed (%d)", hdev->name, -err); 1325 return err; 1326 } 1327 1328 data->isoc_altsetting = altsetting; 1329 1330 data->isoc_tx_ep = NULL; 1331 data->isoc_rx_ep = NULL; 1332 1333 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1334 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1335 1336 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1337 data->isoc_tx_ep = ep_desc; 1338 continue; 1339 } 1340 1341 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1342 data->isoc_rx_ep = ep_desc; 1343 continue; 1344 } 1345 } 1346 1347 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1348 BT_ERR("%s invalid SCO descriptors", hdev->name); 1349 return -ENODEV; 1350 } 1351 1352 return 0; 1353} 1354 1355static void btusb_work(struct work_struct *work) 1356{ 1357 struct btusb_data *data = container_of(work, struct btusb_data, work); 1358 struct hci_dev *hdev = data->hdev; 1359 int new_alts; 1360 int err; 1361 1362 if (data->sco_num > 0) { 1363 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1364 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1365 if (err < 0) { 1366 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1367 usb_kill_anchored_urbs(&data->isoc_anchor); 1368 return; 1369 } 1370 1371 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1372 } 1373 1374 if (hdev->voice_setting & 0x0020) { 1375 static const int alts[3] = { 2, 4, 5 }; 1376 1377 new_alts = alts[data->sco_num - 1]; 1378 } else { 1379 new_alts = data->sco_num; 1380 } 1381 1382 if (data->isoc_altsetting != new_alts) { 1383 unsigned long flags; 1384 1385 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1386 usb_kill_anchored_urbs(&data->isoc_anchor); 1387 1388 /* When isochronous alternate setting needs to be 1389 * changed, because SCO connection has been added 1390 * or removed, a packet fragment may be left in the 1391 * reassembling state. This could lead to wrongly 1392 * assembled fragments. 1393 * 1394 * Clear outstanding fragment when selecting a new 1395 * alternate setting. 1396 */ 1397 spin_lock_irqsave(&data->rxlock, flags); 1398 kfree_skb(data->sco_skb); 1399 data->sco_skb = NULL; 1400 spin_unlock_irqrestore(&data->rxlock, flags); 1401 1402 if (__set_isoc_interface(hdev, new_alts) < 0) 1403 return; 1404 } 1405 1406 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1407 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1408 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1409 else 1410 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1411 } 1412 } else { 1413 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1414 usb_kill_anchored_urbs(&data->isoc_anchor); 1415 1416 __set_isoc_interface(hdev, 0); 1417 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1418 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1419 } 1420} 1421 1422static void btusb_waker(struct work_struct *work) 1423{ 1424 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1425 int err; 1426 1427 err = usb_autopm_get_interface(data->intf); 1428 if (err < 0) 1429 return; 1430 1431 usb_autopm_put_interface(data->intf); 1432} 1433 1434static int btusb_setup_bcm92035(struct hci_dev *hdev) 1435{ 1436 struct sk_buff *skb; 1437 u8 val = 0x00; 1438 1439 BT_DBG("%s", hdev->name); 1440 1441 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1442 if (IS_ERR(skb)) 1443 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb)); 1444 else 1445 kfree_skb(skb); 1446 1447 return 0; 1448} 1449 1450static int btusb_setup_csr(struct hci_dev *hdev) 1451{ 1452 struct hci_rp_read_local_version *rp; 1453 struct sk_buff *skb; 1454 1455 BT_DBG("%s", hdev->name); 1456 1457 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1458 HCI_INIT_TIMEOUT); 1459 if (IS_ERR(skb)) { 1460 int err = PTR_ERR(skb); 1461 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err); 1462 return err; 1463 } 1464 1465 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1466 BT_ERR("%s: CSR: Local version length mismatch", hdev->name); 1467 kfree_skb(skb); 1468 return -EIO; 1469 } 1470 1471 rp = (struct hci_rp_read_local_version *)skb->data; 1472 1473 /* Detect controllers which aren't real CSR ones. */ 1474 if (le16_to_cpu(rp->manufacturer) != 10 || 1475 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1476 /* Clear the reset quirk since this is not an actual 1477 * early Bluetooth 1.1 device from CSR. 1478 */ 1479 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1480 1481 /* These fake CSR controllers have all a broken 1482 * stored link key handling and so just disable it. 1483 */ 1484 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1485 } 1486 1487 kfree_skb(skb); 1488 1489 return 0; 1490} 1491 1492static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1493 struct intel_version *ver) 1494{ 1495 const struct firmware *fw; 1496 char fwname[64]; 1497 int ret; 1498 1499 snprintf(fwname, sizeof(fwname), 1500 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1501 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1502 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1503 ver->fw_build_ww, ver->fw_build_yy); 1504 1505 ret = request_firmware(&fw, fwname, &hdev->dev); 1506 if (ret < 0) { 1507 if (ret == -EINVAL) { 1508 BT_ERR("%s Intel firmware file request failed (%d)", 1509 hdev->name, ret); 1510 return NULL; 1511 } 1512 1513 BT_ERR("%s failed to open Intel firmware file: %s(%d)", 1514 hdev->name, fwname, ret); 1515 1516 /* If the correct firmware patch file is not found, use the 1517 * default firmware patch file instead 1518 */ 1519 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1520 ver->hw_platform, ver->hw_variant); 1521 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1522 BT_ERR("%s failed to open default Intel fw file: %s", 1523 hdev->name, fwname); 1524 return NULL; 1525 } 1526 } 1527 1528 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname); 1529 1530 return fw; 1531} 1532 1533static int btusb_setup_intel_patching(struct hci_dev *hdev, 1534 const struct firmware *fw, 1535 const u8 **fw_ptr, int *disable_patch) 1536{ 1537 struct sk_buff *skb; 1538 struct hci_command_hdr *cmd; 1539 const u8 *cmd_param; 1540 struct hci_event_hdr *evt = NULL; 1541 const u8 *evt_param = NULL; 1542 int remain = fw->size - (*fw_ptr - fw->data); 1543 1544 /* The first byte indicates the types of the patch command or event. 1545 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1546 * in the current firmware buffer doesn't start with 0x01 or 1547 * the size of remain buffer is smaller than HCI command header, 1548 * the firmware file is corrupted and it should stop the patching 1549 * process. 1550 */ 1551 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1552 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); 1553 return -EINVAL; 1554 } 1555 (*fw_ptr)++; 1556 remain--; 1557 1558 cmd = (struct hci_command_hdr *)(*fw_ptr); 1559 *fw_ptr += sizeof(*cmd); 1560 remain -= sizeof(*cmd); 1561 1562 /* Ensure that the remain firmware data is long enough than the length 1563 * of command parameter. If not, the firmware file is corrupted. 1564 */ 1565 if (remain < cmd->plen) { 1566 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); 1567 return -EFAULT; 1568 } 1569 1570 /* If there is a command that loads a patch in the firmware 1571 * file, then enable the patch upon success, otherwise just 1572 * disable the manufacturer mode, for example patch activation 1573 * is not required when the default firmware patch file is used 1574 * because there are no patch data to load. 1575 */ 1576 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1577 *disable_patch = 0; 1578 1579 cmd_param = *fw_ptr; 1580 *fw_ptr += cmd->plen; 1581 remain -= cmd->plen; 1582 1583 /* This reads the expected events when the above command is sent to the 1584 * device. Some vendor commands expects more than one events, for 1585 * example command status event followed by vendor specific event. 1586 * For this case, it only keeps the last expected event. so the command 1587 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1588 * last expected event. 1589 */ 1590 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1591 (*fw_ptr)++; 1592 remain--; 1593 1594 evt = (struct hci_event_hdr *)(*fw_ptr); 1595 *fw_ptr += sizeof(*evt); 1596 remain -= sizeof(*evt); 1597 1598 if (remain < evt->plen) { 1599 BT_ERR("%s Intel fw corrupted: invalid evt len", 1600 hdev->name); 1601 return -EFAULT; 1602 } 1603 1604 evt_param = *fw_ptr; 1605 *fw_ptr += evt->plen; 1606 remain -= evt->plen; 1607 } 1608 1609 /* Every HCI commands in the firmware file has its correspond event. 1610 * If event is not found or remain is smaller than zero, the firmware 1611 * file is corrupted. 1612 */ 1613 if (!evt || !evt_param || remain < 0) { 1614 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); 1615 return -EFAULT; 1616 } 1617 1618 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1619 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1620 if (IS_ERR(skb)) { 1621 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", 1622 hdev->name, cmd->opcode, PTR_ERR(skb)); 1623 return PTR_ERR(skb); 1624 } 1625 1626 /* It ensures that the returned event matches the event data read from 1627 * the firmware file. At fist, it checks the length and then 1628 * the contents of the event. 1629 */ 1630 if (skb->len != evt->plen) { 1631 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, 1632 le16_to_cpu(cmd->opcode)); 1633 kfree_skb(skb); 1634 return -EFAULT; 1635 } 1636 1637 if (memcmp(skb->data, evt_param, evt->plen)) { 1638 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", 1639 hdev->name, le16_to_cpu(cmd->opcode)); 1640 kfree_skb(skb); 1641 return -EFAULT; 1642 } 1643 kfree_skb(skb); 1644 1645 return 0; 1646} 1647 1648static int btusb_setup_intel(struct hci_dev *hdev) 1649{ 1650 struct sk_buff *skb; 1651 const struct firmware *fw; 1652 const u8 *fw_ptr; 1653 int disable_patch; 1654 struct intel_version *ver; 1655 1656 const u8 mfg_enable[] = { 0x01, 0x00 }; 1657 const u8 mfg_disable[] = { 0x00, 0x00 }; 1658 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 }; 1659 const u8 mfg_reset_activate[] = { 0x00, 0x02 }; 1660 1661 BT_DBG("%s", hdev->name); 1662 1663 /* The controller has a bug with the first HCI command sent to it 1664 * returning number of completed commands as zero. This would stall the 1665 * command processing in the Bluetooth core. 1666 * 1667 * As a workaround, send HCI Reset command first which will reset the 1668 * number of completed commands and allow normal command processing 1669 * from now on. 1670 */ 1671 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1672 if (IS_ERR(skb)) { 1673 BT_ERR("%s sending initial HCI reset command failed (%ld)", 1674 hdev->name, PTR_ERR(skb)); 1675 return PTR_ERR(skb); 1676 } 1677 kfree_skb(skb); 1678 1679 /* Read Intel specific controller version first to allow selection of 1680 * which firmware file to load. 1681 * 1682 * The returned information are hardware variant and revision plus 1683 * firmware variant, revision and build number. 1684 */ 1685 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT); 1686 if (IS_ERR(skb)) { 1687 BT_ERR("%s reading Intel fw version command failed (%ld)", 1688 hdev->name, PTR_ERR(skb)); 1689 return PTR_ERR(skb); 1690 } 1691 1692 if (skb->len != sizeof(*ver)) { 1693 BT_ERR("%s Intel version event length mismatch", hdev->name); 1694 kfree_skb(skb); 1695 return -EIO; 1696 } 1697 1698 ver = (struct intel_version *)skb->data; 1699 1700 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1701 hdev->name, ver->hw_platform, ver->hw_variant, 1702 ver->hw_revision, ver->fw_variant, ver->fw_revision, 1703 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy, 1704 ver->fw_patch_num); 1705 1706 /* fw_patch_num indicates the version of patch the device currently 1707 * have. If there is no patch data in the device, it is always 0x00. 1708 * So, if it is other than 0x00, no need to patch the device again. 1709 */ 1710 if (ver->fw_patch_num) { 1711 BT_INFO("%s: Intel device is already patched. patch num: %02x", 1712 hdev->name, ver->fw_patch_num); 1713 kfree_skb(skb); 1714 goto complete; 1715 } 1716 1717 /* Opens the firmware patch file based on the firmware version read 1718 * from the controller. If it fails to open the matching firmware 1719 * patch file, it tries to open the default firmware patch file. 1720 * If no patch file is found, allow the device to operate without 1721 * a patch. 1722 */ 1723 fw = btusb_setup_intel_get_fw(hdev, ver); 1724 if (!fw) { 1725 kfree_skb(skb); 1726 goto complete; 1727 } 1728 fw_ptr = fw->data; 1729 1730 kfree_skb(skb); 1731 1732 /* This Intel specific command enables the manufacturer mode of the 1733 * controller. 1734 * 1735 * Only while this mode is enabled, the driver can download the 1736 * firmware patch data and configuration parameters. 1737 */ 1738 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT); 1739 if (IS_ERR(skb)) { 1740 BT_ERR("%s entering Intel manufacturer mode failed (%ld)", 1741 hdev->name, PTR_ERR(skb)); 1742 release_firmware(fw); 1743 return PTR_ERR(skb); 1744 } 1745 1746 kfree_skb(skb); 1747 1748 disable_patch = 1; 1749 1750 /* The firmware data file consists of list of Intel specific HCI 1751 * commands and its expected events. The first byte indicates the 1752 * type of the message, either HCI command or HCI event. 1753 * 1754 * It reads the command and its expected event from the firmware file, 1755 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1756 * the returned event is compared with the event read from the firmware 1757 * file and it will continue until all the messages are downloaded to 1758 * the controller. 1759 * 1760 * Once the firmware patching is completed successfully, 1761 * the manufacturer mode is disabled with reset and activating the 1762 * downloaded patch. 1763 * 1764 * If the firmware patching fails, the manufacturer mode is 1765 * disabled with reset and deactivating the patch. 1766 * 1767 * If the default patch file is used, no reset is done when disabling 1768 * the manufacturer. 1769 */ 1770 while (fw->size > fw_ptr - fw->data) { 1771 int ret; 1772 1773 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1774 &disable_patch); 1775 if (ret < 0) 1776 goto exit_mfg_deactivate; 1777 } 1778 1779 release_firmware(fw); 1780 1781 if (disable_patch) 1782 goto exit_mfg_disable; 1783 1784 /* Patching completed successfully and disable the manufacturer mode 1785 * with reset and activate the downloaded firmware patches. 1786 */ 1787 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate), 1788 mfg_reset_activate, HCI_INIT_TIMEOUT); 1789 if (IS_ERR(skb)) { 1790 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", 1791 hdev->name, PTR_ERR(skb)); 1792 return PTR_ERR(skb); 1793 } 1794 kfree_skb(skb); 1795 1796 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated", 1797 hdev->name); 1798 1799 goto complete; 1800 1801exit_mfg_disable: 1802 /* Disable the manufacturer mode without reset */ 1803 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable, 1804 HCI_INIT_TIMEOUT); 1805 if (IS_ERR(skb)) { 1806 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", 1807 hdev->name, PTR_ERR(skb)); 1808 return PTR_ERR(skb); 1809 } 1810 kfree_skb(skb); 1811 1812 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name); 1813 1814 goto complete; 1815 1816exit_mfg_deactivate: 1817 release_firmware(fw); 1818 1819 /* Patching failed. Disable the manufacturer mode with reset and 1820 * deactivate the downloaded firmware patches. 1821 */ 1822 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate), 1823 mfg_reset_deactivate, HCI_INIT_TIMEOUT); 1824 if (IS_ERR(skb)) { 1825 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", 1826 hdev->name, PTR_ERR(skb)); 1827 return PTR_ERR(skb); 1828 } 1829 kfree_skb(skb); 1830 1831 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated", 1832 hdev->name); 1833 1834complete: 1835 /* Set the event mask for Intel specific vendor events. This enables 1836 * a few extra events that are useful during general operation. 1837 */ 1838 btintel_set_event_mask_mfg(hdev, false); 1839 1840 btintel_check_bdaddr(hdev); 1841 return 0; 1842} 1843 1844static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1845{ 1846 struct sk_buff *skb; 1847 struct hci_event_hdr *hdr; 1848 struct hci_ev_cmd_complete *evt; 1849 1850 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); 1851 if (!skb) 1852 return -ENOMEM; 1853 1854 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr)); 1855 hdr->evt = HCI_EV_CMD_COMPLETE; 1856 hdr->plen = sizeof(*evt) + 1; 1857 1858 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt)); 1859 evt->ncmd = 0x01; 1860 evt->opcode = cpu_to_le16(opcode); 1861 1862 *skb_put(skb, 1) = 0x00; 1863 1864 bt_cb(skb)->pkt_type = HCI_EVENT_PKT; 1865 1866 return hci_recv_frame(hdev, skb); 1867} 1868 1869static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1870 int count) 1871{ 1872 /* When the device is in bootloader mode, then it can send 1873 * events via the bulk endpoint. These events are treated the 1874 * same way as the ones received from the interrupt endpoint. 1875 */ 1876 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1877 return btusb_recv_intr(data, buffer, count); 1878 1879 return btusb_recv_bulk(data, buffer, count); 1880} 1881 1882static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1883 unsigned int len) 1884{ 1885 const struct intel_bootup *evt = ptr; 1886 1887 if (len != sizeof(*evt)) 1888 return; 1889 1890 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) { 1891 smp_mb__after_atomic(); 1892 wake_up_bit(&data->flags, BTUSB_BOOTING); 1893 } 1894} 1895 1896static void btusb_intel_secure_send_result(struct btusb_data *data, 1897 const void *ptr, unsigned int len) 1898{ 1899 const struct intel_secure_send_result *evt = ptr; 1900 1901 if (len != sizeof(*evt)) 1902 return; 1903 1904 if (evt->result) 1905 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1906 1907 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1908 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) { 1909 smp_mb__after_atomic(); 1910 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1911 } 1912} 1913 1914static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1915{ 1916 struct btusb_data *data = hci_get_drvdata(hdev); 1917 1918 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1919 struct hci_event_hdr *hdr = (void *)skb->data; 1920 1921 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1922 hdr->plen > 0) { 1923 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1924 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1925 1926 switch (skb->data[2]) { 1927 case 0x02: 1928 /* When switching to the operational firmware 1929 * the device sends a vendor specific event 1930 * indicating that the bootup completed. 1931 */ 1932 btusb_intel_bootup(data, ptr, len); 1933 break; 1934 case 0x06: 1935 /* When the firmware loading completes the 1936 * device sends out a vendor specific event 1937 * indicating the result of the firmware 1938 * loading. 1939 */ 1940 btusb_intel_secure_send_result(data, ptr, len); 1941 break; 1942 } 1943 } 1944 } 1945 1946 return hci_recv_frame(hdev, skb); 1947} 1948 1949static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 1950{ 1951 struct btusb_data *data = hci_get_drvdata(hdev); 1952 struct urb *urb; 1953 1954 BT_DBG("%s", hdev->name); 1955 1956 switch (bt_cb(skb)->pkt_type) { 1957 case HCI_COMMAND_PKT: 1958 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1959 struct hci_command_hdr *cmd = (void *)skb->data; 1960 __u16 opcode = le16_to_cpu(cmd->opcode); 1961 1962 /* When in bootloader mode and the command 0xfc09 1963 * is received, it needs to be send down the 1964 * bulk endpoint. So allocate a bulk URB instead. 1965 */ 1966 if (opcode == 0xfc09) 1967 urb = alloc_bulk_urb(hdev, skb); 1968 else 1969 urb = alloc_ctrl_urb(hdev, skb); 1970 1971 /* When the 0xfc01 command is issued to boot into 1972 * the operational firmware, it will actually not 1973 * send a command complete event. To keep the flow 1974 * control working inject that event here. 1975 */ 1976 if (opcode == 0xfc01) 1977 inject_cmd_complete(hdev, opcode); 1978 } else { 1979 urb = alloc_ctrl_urb(hdev, skb); 1980 } 1981 if (IS_ERR(urb)) 1982 return PTR_ERR(urb); 1983 1984 hdev->stat.cmd_tx++; 1985 return submit_or_queue_tx_urb(hdev, urb); 1986 1987 case HCI_ACLDATA_PKT: 1988 urb = alloc_bulk_urb(hdev, skb); 1989 if (IS_ERR(urb)) 1990 return PTR_ERR(urb); 1991 1992 hdev->stat.acl_tx++; 1993 return submit_or_queue_tx_urb(hdev, urb); 1994 1995 case HCI_SCODATA_PKT: 1996 if (hci_conn_num(hdev, SCO_LINK) < 1) 1997 return -ENODEV; 1998 1999 urb = alloc_isoc_urb(hdev, skb); 2000 if (IS_ERR(urb)) 2001 return PTR_ERR(urb); 2002 2003 hdev->stat.sco_tx++; 2004 return submit_tx_urb(hdev, urb); 2005 } 2006 2007 return -EILSEQ; 2008} 2009 2010static int btusb_setup_intel_new(struct hci_dev *hdev) 2011{ 2012 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01, 2013 0x00, 0x08, 0x04, 0x00 }; 2014 struct btusb_data *data = hci_get_drvdata(hdev); 2015 struct sk_buff *skb; 2016 struct intel_version *ver; 2017 struct intel_boot_params *params; 2018 const struct firmware *fw; 2019 const u8 *fw_ptr; 2020 u32 frag_len; 2021 char fwname[64]; 2022 ktime_t calltime, delta, rettime; 2023 unsigned long long duration; 2024 int err; 2025 2026 BT_DBG("%s", hdev->name); 2027 2028 calltime = ktime_get(); 2029 2030 /* Read the Intel version information to determine if the device 2031 * is in bootloader mode or if it already has operational firmware 2032 * loaded. 2033 */ 2034 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT); 2035 if (IS_ERR(skb)) { 2036 BT_ERR("%s: Reading Intel version information failed (%ld)", 2037 hdev->name, PTR_ERR(skb)); 2038 return PTR_ERR(skb); 2039 } 2040 2041 if (skb->len != sizeof(*ver)) { 2042 BT_ERR("%s: Intel version event size mismatch", hdev->name); 2043 kfree_skb(skb); 2044 return -EILSEQ; 2045 } 2046 2047 ver = (struct intel_version *)skb->data; 2048 2049 /* The hardware platform number has a fixed value of 0x37 and 2050 * for now only accept this single value. 2051 */ 2052 if (ver->hw_platform != 0x37) { 2053 BT_ERR("%s: Unsupported Intel hardware platform (%u)", 2054 hdev->name, ver->hw_platform); 2055 kfree_skb(skb); 2056 return -EINVAL; 2057 } 2058 2059 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is 2060 * supported by this firmware loading method. This check has been 2061 * put in place to ensure correct forward compatibility options 2062 * when newer hardware variants come along. 2063 */ 2064 if (ver->hw_variant != 0x0b) { 2065 BT_ERR("%s: Unsupported Intel hardware variant (%u)", 2066 hdev->name, ver->hw_variant); 2067 kfree_skb(skb); 2068 return -EINVAL; 2069 } 2070 2071 btintel_version_info(hdev, ver); 2072 2073 /* The firmware variant determines if the device is in bootloader 2074 * mode or is running operational firmware. The value 0x06 identifies 2075 * the bootloader and the value 0x23 identifies the operational 2076 * firmware. 2077 * 2078 * When the operational firmware is already present, then only 2079 * the check for valid Bluetooth device address is needed. This 2080 * determines if the device will be added as configured or 2081 * unconfigured controller. 2082 * 2083 * It is not possible to use the Secure Boot Parameters in this 2084 * case since that command is only available in bootloader mode. 2085 */ 2086 if (ver->fw_variant == 0x23) { 2087 kfree_skb(skb); 2088 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2089 btintel_check_bdaddr(hdev); 2090 return 0; 2091 } 2092 2093 /* If the device is not in bootloader mode, then the only possible 2094 * choice is to return an error and abort the device initialization. 2095 */ 2096 if (ver->fw_variant != 0x06) { 2097 BT_ERR("%s: Unsupported Intel firmware variant (%u)", 2098 hdev->name, ver->fw_variant); 2099 kfree_skb(skb); 2100 return -ENODEV; 2101 } 2102 2103 kfree_skb(skb); 2104 2105 /* Read the secure boot parameters to identify the operating 2106 * details of the bootloader. 2107 */ 2108 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT); 2109 if (IS_ERR(skb)) { 2110 BT_ERR("%s: Reading Intel boot parameters failed (%ld)", 2111 hdev->name, PTR_ERR(skb)); 2112 return PTR_ERR(skb); 2113 } 2114 2115 if (skb->len != sizeof(*params)) { 2116 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name); 2117 kfree_skb(skb); 2118 return -EILSEQ; 2119 } 2120 2121 params = (struct intel_boot_params *)skb->data; 2122 2123 BT_INFO("%s: Device revision is %u", hdev->name, 2124 le16_to_cpu(params->dev_revid)); 2125 2126 BT_INFO("%s: Secure boot is %s", hdev->name, 2127 params->secure_boot ? "enabled" : "disabled"); 2128 2129 BT_INFO("%s: OTP lock is %s", hdev->name, 2130 params->otp_lock ? "enabled" : "disabled"); 2131 2132 BT_INFO("%s: API lock is %s", hdev->name, 2133 params->api_lock ? "enabled" : "disabled"); 2134 2135 BT_INFO("%s: Debug lock is %s", hdev->name, 2136 params->debug_lock ? "enabled" : "disabled"); 2137 2138 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name, 2139 params->min_fw_build_nn, params->min_fw_build_cw, 2140 2000 + params->min_fw_build_yy); 2141 2142 /* It is required that every single firmware fragment is acknowledged 2143 * with a command complete event. If the boot parameters indicate 2144 * that this bootloader does not send them, then abort the setup. 2145 */ 2146 if (params->limited_cce != 0x00) { 2147 BT_ERR("%s: Unsupported Intel firmware loading method (%u)", 2148 hdev->name, params->limited_cce); 2149 kfree_skb(skb); 2150 return -EINVAL; 2151 } 2152 2153 /* If the OTP has no valid Bluetooth device address, then there will 2154 * also be no valid address for the operational firmware. 2155 */ 2156 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) { 2157 BT_INFO("%s: No device address configured", hdev->name); 2158 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2159 } 2160 2161 /* With this Intel bootloader only the hardware variant and device 2162 * revision information are used to select the right firmware. 2163 * 2164 * Currently this bootloader support is limited to hardware variant 2165 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b). 2166 */ 2167 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi", 2168 le16_to_cpu(params->dev_revid)); 2169 2170 err = request_firmware(&fw, fwname, &hdev->dev); 2171 if (err < 0) { 2172 BT_ERR("%s: Failed to load Intel firmware file (%d)", 2173 hdev->name, err); 2174 kfree_skb(skb); 2175 return err; 2176 } 2177 2178 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname); 2179 2180 /* Save the DDC file name for later use to apply once the firmware 2181 * downloading is done. 2182 */ 2183 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc", 2184 le16_to_cpu(params->dev_revid)); 2185 2186 kfree_skb(skb); 2187 2188 if (fw->size < 644) { 2189 BT_ERR("%s: Invalid size of firmware file (%zu)", 2190 hdev->name, fw->size); 2191 err = -EBADF; 2192 goto done; 2193 } 2194 2195 set_bit(BTUSB_DOWNLOADING, &data->flags); 2196 2197 /* Start the firmware download transaction with the Init fragment 2198 * represented by the 128 bytes of CSS header. 2199 */ 2200 err = btintel_secure_send(hdev, 0x00, 128, fw->data); 2201 if (err < 0) { 2202 BT_ERR("%s: Failed to send firmware header (%d)", 2203 hdev->name, err); 2204 goto done; 2205 } 2206 2207 /* Send the 256 bytes of public key information from the firmware 2208 * as the PKey fragment. 2209 */ 2210 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128); 2211 if (err < 0) { 2212 BT_ERR("%s: Failed to send firmware public key (%d)", 2213 hdev->name, err); 2214 goto done; 2215 } 2216 2217 /* Send the 256 bytes of signature information from the firmware 2218 * as the Sign fragment. 2219 */ 2220 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388); 2221 if (err < 0) { 2222 BT_ERR("%s: Failed to send firmware signature (%d)", 2223 hdev->name, err); 2224 goto done; 2225 } 2226 2227 fw_ptr = fw->data + 644; 2228 frag_len = 0; 2229 2230 while (fw_ptr - fw->data < fw->size) { 2231 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len); 2232 2233 frag_len += sizeof(*cmd) + cmd->plen; 2234 2235 /* The parameter length of the secure send command requires 2236 * a 4 byte alignment. It happens so that the firmware file 2237 * contains proper Intel_NOP commands to align the fragments 2238 * as needed. 2239 * 2240 * Send set of commands with 4 byte alignment from the 2241 * firmware data buffer as a single Data fragement. 2242 */ 2243 if (!(frag_len % 4)) { 2244 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr); 2245 if (err < 0) { 2246 BT_ERR("%s: Failed to send firmware data (%d)", 2247 hdev->name, err); 2248 goto done; 2249 } 2250 2251 fw_ptr += frag_len; 2252 frag_len = 0; 2253 } 2254 } 2255 2256 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2257 2258 BT_INFO("%s: Waiting for firmware download to complete", hdev->name); 2259 2260 /* Before switching the device into operational mode and with that 2261 * booting the loaded firmware, wait for the bootloader notification 2262 * that all fragments have been successfully received. 2263 * 2264 * When the event processing receives the notification, then the 2265 * BTUSB_DOWNLOADING flag will be cleared. 2266 * 2267 * The firmware loading should not take longer than 5 seconds 2268 * and thus just timeout if that happens and fail the setup 2269 * of this device. 2270 */ 2271 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2272 TASK_INTERRUPTIBLE, 2273 msecs_to_jiffies(5000)); 2274 if (err == 1) { 2275 BT_ERR("%s: Firmware loading interrupted", hdev->name); 2276 err = -EINTR; 2277 goto done; 2278 } 2279 2280 if (err) { 2281 BT_ERR("%s: Firmware loading timeout", hdev->name); 2282 err = -ETIMEDOUT; 2283 goto done; 2284 } 2285 2286 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2287 BT_ERR("%s: Firmware loading failed", hdev->name); 2288 err = -ENOEXEC; 2289 goto done; 2290 } 2291 2292 rettime = ktime_get(); 2293 delta = ktime_sub(rettime, calltime); 2294 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2295 2296 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration); 2297 2298done: 2299 release_firmware(fw); 2300 2301 if (err < 0) 2302 return err; 2303 2304 calltime = ktime_get(); 2305 2306 set_bit(BTUSB_BOOTING, &data->flags); 2307 2308 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param, 2309 HCI_INIT_TIMEOUT); 2310 if (IS_ERR(skb)) 2311 return PTR_ERR(skb); 2312 2313 kfree_skb(skb); 2314 2315 /* The bootloader will not indicate when the device is ready. This 2316 * is done by the operational firmware sending bootup notification. 2317 * 2318 * Booting into operational firmware should not take longer than 2319 * 1 second. However if that happens, then just fail the setup 2320 * since something went wrong. 2321 */ 2322 BT_INFO("%s: Waiting for device to boot", hdev->name); 2323 2324 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2325 TASK_INTERRUPTIBLE, 2326 msecs_to_jiffies(1000)); 2327 2328 if (err == 1) { 2329 BT_ERR("%s: Device boot interrupted", hdev->name); 2330 return -EINTR; 2331 } 2332 2333 if (err) { 2334 BT_ERR("%s: Device boot timeout", hdev->name); 2335 return -ETIMEDOUT; 2336 } 2337 2338 rettime = ktime_get(); 2339 delta = ktime_sub(rettime, calltime); 2340 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2341 2342 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration); 2343 2344 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2345 2346 /* Once the device is running in operational mode, it needs to apply 2347 * the device configuration (DDC) parameters. 2348 * 2349 * The device can work without DDC parameters, so even if it fails 2350 * to load the file, no need to fail the setup. 2351 */ 2352 btintel_load_ddc_config(hdev, fwname); 2353 2354 /* Set the event mask for Intel specific vendor events. This enables 2355 * a few extra events that are useful during general operation. It 2356 * does not enable any debugging related events. 2357 * 2358 * The device will function correctly without these events enabled 2359 * and thus no need to fail the setup. 2360 */ 2361 btintel_set_event_mask(hdev, false); 2362 2363 return 0; 2364} 2365 2366static int btusb_shutdown_intel(struct hci_dev *hdev) 2367{ 2368 struct sk_buff *skb; 2369 long ret; 2370 2371 /* Some platforms have an issue with BT LED when the interface is 2372 * down or BT radio is turned off, which takes 5 seconds to BT LED 2373 * goes off. This command turns off the BT LED immediately. 2374 */ 2375 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2376 if (IS_ERR(skb)) { 2377 ret = PTR_ERR(skb); 2378 BT_ERR("%s: turning off Intel device LED failed (%ld)", 2379 hdev->name, ret); 2380 return ret; 2381 } 2382 kfree_skb(skb); 2383 2384 return 0; 2385} 2386 2387static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2388 const bdaddr_t *bdaddr) 2389{ 2390 struct sk_buff *skb; 2391 u8 buf[8]; 2392 long ret; 2393 2394 buf[0] = 0xfe; 2395 buf[1] = sizeof(bdaddr_t); 2396 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2397 2398 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2399 if (IS_ERR(skb)) { 2400 ret = PTR_ERR(skb); 2401 BT_ERR("%s: changing Marvell device address failed (%ld)", 2402 hdev->name, ret); 2403 return ret; 2404 } 2405 kfree_skb(skb); 2406 2407 return 0; 2408} 2409 2410static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2411 const bdaddr_t *bdaddr) 2412{ 2413 struct sk_buff *skb; 2414 u8 buf[10]; 2415 long ret; 2416 2417 buf[0] = 0x01; 2418 buf[1] = 0x01; 2419 buf[2] = 0x00; 2420 buf[3] = sizeof(bdaddr_t); 2421 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2422 2423 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2424 if (IS_ERR(skb)) { 2425 ret = PTR_ERR(skb); 2426 BT_ERR("%s: Change address command failed (%ld)", 2427 hdev->name, ret); 2428 return ret; 2429 } 2430 kfree_skb(skb); 2431 2432 return 0; 2433} 2434 2435#define QCA_DFU_PACKET_LEN 4096 2436 2437#define QCA_GET_TARGET_VERSION 0x09 2438#define QCA_CHECK_STATUS 0x05 2439#define QCA_DFU_DOWNLOAD 0x01 2440 2441#define QCA_SYSCFG_UPDATED 0x40 2442#define QCA_PATCH_UPDATED 0x80 2443#define QCA_DFU_TIMEOUT 3000 2444 2445struct qca_version { 2446 __le32 rom_version; 2447 __le32 patch_version; 2448 __le32 ram_version; 2449 __le32 ref_clock; 2450 __u8 reserved[4]; 2451} __packed; 2452 2453struct qca_rampatch_version { 2454 __le16 rom_version; 2455 __le16 patch_version; 2456} __packed; 2457 2458struct qca_device_info { 2459 u32 rom_version; 2460 u8 rampatch_hdr; /* length of header in rampatch */ 2461 u8 nvm_hdr; /* length of header in NVM */ 2462 u8 ver_offset; /* offset of version structure in rampatch */ 2463}; 2464 2465static const struct qca_device_info qca_devices_table[] = { 2466 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2467 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2468 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2469 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2470 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2471 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2472}; 2473 2474static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request, 2475 void *data, u16 size) 2476{ 2477 struct btusb_data *btdata = hci_get_drvdata(hdev); 2478 struct usb_device *udev = btdata->udev; 2479 int pipe, err; 2480 u8 *buf; 2481 2482 buf = kmalloc(size, GFP_KERNEL); 2483 if (!buf) 2484 return -ENOMEM; 2485 2486 /* Found some of USB hosts have IOT issues with ours so that we should 2487 * not wait until HCI layer is ready. 2488 */ 2489 pipe = usb_rcvctrlpipe(udev, 0); 2490 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2491 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2492 if (err < 0) { 2493 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err); 2494 goto done; 2495 } 2496 2497 memcpy(data, buf, size); 2498 2499done: 2500 kfree(buf); 2501 2502 return err; 2503} 2504 2505static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2506 const struct firmware *firmware, 2507 size_t hdr_size) 2508{ 2509 struct btusb_data *btdata = hci_get_drvdata(hdev); 2510 struct usb_device *udev = btdata->udev; 2511 size_t count, size, sent = 0; 2512 int pipe, len, err; 2513 u8 *buf; 2514 2515 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2516 if (!buf) 2517 return -ENOMEM; 2518 2519 count = firmware->size; 2520 2521 size = min_t(size_t, count, hdr_size); 2522 memcpy(buf, firmware->data, size); 2523 2524 /* USB patches should go down to controller through USB path 2525 * because binary format fits to go down through USB channel. 2526 * USB control path is for patching headers and USB bulk is for 2527 * patch body. 2528 */ 2529 pipe = usb_sndctrlpipe(udev, 0); 2530 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2531 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2532 if (err < 0) { 2533 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err); 2534 goto done; 2535 } 2536 2537 sent += size; 2538 count -= size; 2539 2540 while (count) { 2541 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2542 2543 memcpy(buf, firmware->data + sent, size); 2544 2545 pipe = usb_sndbulkpipe(udev, 0x02); 2546 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2547 QCA_DFU_TIMEOUT); 2548 if (err < 0) { 2549 BT_ERR("%s: Failed to send body at %zd of %zd (%d)", 2550 hdev->name, sent, firmware->size, err); 2551 break; 2552 } 2553 2554 if (size != len) { 2555 BT_ERR("%s: Failed to get bulk buffer", hdev->name); 2556 err = -EILSEQ; 2557 break; 2558 } 2559 2560 sent += size; 2561 count -= size; 2562 } 2563 2564done: 2565 kfree(buf); 2566 return err; 2567} 2568 2569static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2570 struct qca_version *ver, 2571 const struct qca_device_info *info) 2572{ 2573 struct qca_rampatch_version *rver; 2574 const struct firmware *fw; 2575 u32 ver_rom, ver_patch; 2576 u16 rver_rom, rver_patch; 2577 char fwname[64]; 2578 int err; 2579 2580 ver_rom = le32_to_cpu(ver->rom_version); 2581 ver_patch = le32_to_cpu(ver->patch_version); 2582 2583 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2584 2585 err = request_firmware(&fw, fwname, &hdev->dev); 2586 if (err) { 2587 BT_ERR("%s: failed to request rampatch file: %s (%d)", 2588 hdev->name, fwname, err); 2589 return err; 2590 } 2591 2592 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname); 2593 2594 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2595 rver_rom = le16_to_cpu(rver->rom_version); 2596 rver_patch = le16_to_cpu(rver->patch_version); 2597 2598 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x " 2599 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom, 2600 ver_patch); 2601 2602 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2603 BT_ERR("%s: rampatch file version did not match with firmware", 2604 hdev->name); 2605 err = -EINVAL; 2606 goto done; 2607 } 2608 2609 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2610 2611done: 2612 release_firmware(fw); 2613 2614 return err; 2615} 2616 2617static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2618 struct qca_version *ver, 2619 const struct qca_device_info *info) 2620{ 2621 const struct firmware *fw; 2622 char fwname[64]; 2623 int err; 2624 2625 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2626 le32_to_cpu(ver->rom_version)); 2627 2628 err = request_firmware(&fw, fwname, &hdev->dev); 2629 if (err) { 2630 BT_ERR("%s: failed to request NVM file: %s (%d)", 2631 hdev->name, fwname, err); 2632 return err; 2633 } 2634 2635 BT_INFO("%s: using NVM file: %s", hdev->name, fwname); 2636 2637 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2638 2639 release_firmware(fw); 2640 2641 return err; 2642} 2643 2644static int btusb_setup_qca(struct hci_dev *hdev) 2645{ 2646 const struct qca_device_info *info = NULL; 2647 struct qca_version ver; 2648 u32 ver_rom; 2649 u8 status; 2650 int i, err; 2651 2652 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver, 2653 sizeof(ver)); 2654 if (err < 0) 2655 return err; 2656 2657 ver_rom = le32_to_cpu(ver.rom_version); 2658 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2659 if (ver_rom == qca_devices_table[i].rom_version) 2660 info = &qca_devices_table[i]; 2661 } 2662 if (!info) { 2663 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name, 2664 ver_rom); 2665 return -ENODEV; 2666 } 2667 2668 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status, 2669 sizeof(status)); 2670 if (err < 0) 2671 return err; 2672 2673 if (!(status & QCA_PATCH_UPDATED)) { 2674 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2675 if (err < 0) 2676 return err; 2677 } 2678 2679 if (!(status & QCA_SYSCFG_UPDATED)) { 2680 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2681 if (err < 0) 2682 return err; 2683 } 2684 2685 return 0; 2686} 2687 2688#ifdef CONFIG_BT_HCIBTUSB_BCM 2689static inline int __set_diag_interface(struct hci_dev *hdev) 2690{ 2691 struct btusb_data *data = hci_get_drvdata(hdev); 2692 struct usb_interface *intf = data->diag; 2693 int i; 2694 2695 if (!data->diag) 2696 return -ENODEV; 2697 2698 data->diag_tx_ep = NULL; 2699 data->diag_rx_ep = NULL; 2700 2701 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2702 struct usb_endpoint_descriptor *ep_desc; 2703 2704 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2705 2706 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2707 data->diag_tx_ep = ep_desc; 2708 continue; 2709 } 2710 2711 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2712 data->diag_rx_ep = ep_desc; 2713 continue; 2714 } 2715 } 2716 2717 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2718 BT_ERR("%s invalid diagnostic descriptors", hdev->name); 2719 return -ENODEV; 2720 } 2721 2722 return 0; 2723} 2724 2725static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2726{ 2727 struct btusb_data *data = hci_get_drvdata(hdev); 2728 struct sk_buff *skb; 2729 struct urb *urb; 2730 unsigned int pipe; 2731 2732 if (!data->diag_tx_ep) 2733 return ERR_PTR(-ENODEV); 2734 2735 urb = usb_alloc_urb(0, GFP_KERNEL); 2736 if (!urb) 2737 return ERR_PTR(-ENOMEM); 2738 2739 skb = bt_skb_alloc(2, GFP_KERNEL); 2740 if (!skb) { 2741 usb_free_urb(urb); 2742 return ERR_PTR(-ENOMEM); 2743 } 2744 2745 *skb_put(skb, 1) = 0xf0; 2746 *skb_put(skb, 1) = enable; 2747 2748 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2749 2750 usb_fill_bulk_urb(urb, data->udev, pipe, 2751 skb->data, skb->len, btusb_tx_complete, skb); 2752 2753 skb->dev = (void *)hdev; 2754 2755 return urb; 2756} 2757 2758static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2759{ 2760 struct btusb_data *data = hci_get_drvdata(hdev); 2761 struct urb *urb; 2762 2763 if (!data->diag) 2764 return -ENODEV; 2765 2766 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2767 return -ENETDOWN; 2768 2769 urb = alloc_diag_urb(hdev, enable); 2770 if (IS_ERR(urb)) 2771 return PTR_ERR(urb); 2772 2773 return submit_or_queue_tx_urb(hdev, urb); 2774} 2775#endif 2776 2777static int btusb_probe(struct usb_interface *intf, 2778 const struct usb_device_id *id) 2779{ 2780 struct usb_endpoint_descriptor *ep_desc; 2781 struct btusb_data *data; 2782 struct hci_dev *hdev; 2783 unsigned ifnum_base; 2784 int i, err; 2785 2786 BT_DBG("intf %p id %p", intf, id); 2787 2788 /* interface numbers are hardcoded in the spec */ 2789 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2790 if (!(id->driver_info & BTUSB_IFNUM_2)) 2791 return -ENODEV; 2792 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2793 return -ENODEV; 2794 } 2795 2796 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2797 2798 if (!id->driver_info) { 2799 const struct usb_device_id *match; 2800 2801 match = usb_match_id(intf, blacklist_table); 2802 if (match) 2803 id = match; 2804 } 2805 2806 if (id->driver_info == BTUSB_IGNORE) 2807 return -ENODEV; 2808 2809 if (id->driver_info & BTUSB_ATH3012) { 2810 struct usb_device *udev = interface_to_usbdev(intf); 2811 2812 /* Old firmware would otherwise let ath3k driver load 2813 * patch and sysconfig files */ 2814 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) 2815 return -ENODEV; 2816 } 2817 2818 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2819 if (!data) 2820 return -ENOMEM; 2821 2822 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2823 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2824 2825 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2826 data->intr_ep = ep_desc; 2827 continue; 2828 } 2829 2830 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2831 data->bulk_tx_ep = ep_desc; 2832 continue; 2833 } 2834 2835 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2836 data->bulk_rx_ep = ep_desc; 2837 continue; 2838 } 2839 } 2840 2841 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2842 return -ENODEV; 2843 2844 if (id->driver_info & BTUSB_AMP) { 2845 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2846 data->cmdreq = 0x2b; 2847 } else { 2848 data->cmdreq_type = USB_TYPE_CLASS; 2849 data->cmdreq = 0x00; 2850 } 2851 2852 data->udev = interface_to_usbdev(intf); 2853 data->intf = intf; 2854 2855 INIT_WORK(&data->work, btusb_work); 2856 INIT_WORK(&data->waker, btusb_waker); 2857 init_usb_anchor(&data->deferred); 2858 init_usb_anchor(&data->tx_anchor); 2859 spin_lock_init(&data->txlock); 2860 2861 init_usb_anchor(&data->intr_anchor); 2862 init_usb_anchor(&data->bulk_anchor); 2863 init_usb_anchor(&data->isoc_anchor); 2864 init_usb_anchor(&data->diag_anchor); 2865 spin_lock_init(&data->rxlock); 2866 2867 if (id->driver_info & BTUSB_INTEL_NEW) { 2868 data->recv_event = btusb_recv_event_intel; 2869 data->recv_bulk = btusb_recv_bulk_intel; 2870 set_bit(BTUSB_BOOTLOADER, &data->flags); 2871 } else { 2872 data->recv_event = hci_recv_frame; 2873 data->recv_bulk = btusb_recv_bulk; 2874 } 2875 2876 hdev = hci_alloc_dev(); 2877 if (!hdev) 2878 return -ENOMEM; 2879 2880 hdev->bus = HCI_USB; 2881 hci_set_drvdata(hdev, data); 2882 2883 if (id->driver_info & BTUSB_AMP) 2884 hdev->dev_type = HCI_AMP; 2885 else 2886 hdev->dev_type = HCI_BREDR; 2887 2888 data->hdev = hdev; 2889 2890 SET_HCIDEV_DEV(hdev, &intf->dev); 2891 2892 hdev->open = btusb_open; 2893 hdev->close = btusb_close; 2894 hdev->flush = btusb_flush; 2895 hdev->send = btusb_send_frame; 2896 hdev->notify = btusb_notify; 2897 2898 if (id->driver_info & BTUSB_BCM2045) 2899 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 2900 2901 if (id->driver_info & BTUSB_BCM92035) 2902 hdev->setup = btusb_setup_bcm92035; 2903 2904#ifdef CONFIG_BT_HCIBTUSB_BCM 2905 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 2906 hdev->manufacturer = 15; 2907 hdev->setup = btbcm_setup_patchram; 2908 hdev->set_diag = btusb_bcm_set_diag; 2909 hdev->set_bdaddr = btbcm_set_bdaddr; 2910 2911 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 2912 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 2913 } 2914 2915 if (id->driver_info & BTUSB_BCM_APPLE) { 2916 hdev->manufacturer = 15; 2917 hdev->setup = btbcm_setup_apple; 2918 hdev->set_diag = btusb_bcm_set_diag; 2919 2920 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 2921 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 2922 } 2923#endif 2924 2925 if (id->driver_info & BTUSB_INTEL) { 2926 hdev->manufacturer = 2; 2927 hdev->setup = btusb_setup_intel; 2928 hdev->shutdown = btusb_shutdown_intel; 2929 hdev->set_diag = btintel_set_diag_mfg; 2930 hdev->set_bdaddr = btintel_set_bdaddr; 2931 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 2932 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2933 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 2934 } 2935 2936 if (id->driver_info & BTUSB_INTEL_NEW) { 2937 hdev->manufacturer = 2; 2938 hdev->send = btusb_send_frame_intel; 2939 hdev->setup = btusb_setup_intel_new; 2940 hdev->hw_error = btintel_hw_error; 2941 hdev->set_diag = btintel_set_diag; 2942 hdev->set_bdaddr = btintel_set_bdaddr; 2943 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 2944 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 2945 } 2946 2947 if (id->driver_info & BTUSB_MARVELL) 2948 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 2949 2950 if (id->driver_info & BTUSB_SWAVE) { 2951 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 2952 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 2953 } 2954 2955 if (id->driver_info & BTUSB_INTEL_BOOT) { 2956 hdev->manufacturer = 2; 2957 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 2958 } 2959 2960 if (id->driver_info & BTUSB_ATH3012) { 2961 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 2962 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2963 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 2964 } 2965 2966 if (id->driver_info & BTUSB_QCA_ROME) { 2967 data->setup_on_usb = btusb_setup_qca; 2968 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 2969 } 2970 2971#ifdef CONFIG_BT_HCIBTUSB_RTL 2972 if (id->driver_info & BTUSB_REALTEK) { 2973 hdev->setup = btrtl_setup_realtek; 2974 2975 /* Realtek devices lose their updated firmware over suspend, 2976 * but the USB hub doesn't notice any status change. 2977 * Explicitly request a device reset on resume. 2978 */ 2979 set_bit(BTUSB_RESET_RESUME, &data->flags); 2980 } 2981#endif 2982 2983 if (id->driver_info & BTUSB_AMP) { 2984 /* AMP controllers do not support SCO packets */ 2985 data->isoc = NULL; 2986 } else { 2987 /* Interface orders are hardcoded in the specification */ 2988 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 2989 } 2990 2991 if (!reset) 2992 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2993 2994 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 2995 if (!disable_scofix) 2996 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 2997 } 2998 2999 if (id->driver_info & BTUSB_BROKEN_ISOC) 3000 data->isoc = NULL; 3001 3002 if (id->driver_info & BTUSB_DIGIANSWER) { 3003 data->cmdreq_type = USB_TYPE_VENDOR; 3004 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3005 } 3006 3007 if (id->driver_info & BTUSB_CSR) { 3008 struct usb_device *udev = data->udev; 3009 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3010 3011 /* Old firmware would otherwise execute USB reset */ 3012 if (bcdDevice < 0x117) 3013 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3014 3015 /* Fake CSR devices with broken commands */ 3016 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3017 hdev->setup = btusb_setup_csr; 3018 3019 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3020 } 3021 3022 if (id->driver_info & BTUSB_SNIFFER) { 3023 struct usb_device *udev = data->udev; 3024 3025 /* New sniffer firmware has crippled HCI interface */ 3026 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3027 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3028 } 3029 3030 if (id->driver_info & BTUSB_INTEL_BOOT) { 3031 /* A bug in the bootloader causes that interrupt interface is 3032 * only enabled after receiving SetInterface(0, AltSetting=0). 3033 */ 3034 err = usb_set_interface(data->udev, 0, 0); 3035 if (err < 0) { 3036 BT_ERR("failed to set interface 0, alt 0 %d", err); 3037 hci_free_dev(hdev); 3038 return err; 3039 } 3040 } 3041 3042 if (data->isoc) { 3043 err = usb_driver_claim_interface(&btusb_driver, 3044 data->isoc, data); 3045 if (err < 0) { 3046 hci_free_dev(hdev); 3047 return err; 3048 } 3049 } 3050 3051#ifdef CONFIG_BT_HCIBTUSB_BCM 3052 if (data->diag) { 3053 if (!usb_driver_claim_interface(&btusb_driver, 3054 data->diag, data)) 3055 __set_diag_interface(hdev); 3056 else 3057 data->diag = NULL; 3058 } 3059#endif 3060 3061 err = hci_register_dev(hdev); 3062 if (err < 0) { 3063 hci_free_dev(hdev); 3064 return err; 3065 } 3066 3067 usb_set_intfdata(intf, data); 3068 3069 return 0; 3070} 3071 3072static void btusb_disconnect(struct usb_interface *intf) 3073{ 3074 struct btusb_data *data = usb_get_intfdata(intf); 3075 struct hci_dev *hdev; 3076 3077 BT_DBG("intf %p", intf); 3078 3079 if (!data) 3080 return; 3081 3082 hdev = data->hdev; 3083 usb_set_intfdata(data->intf, NULL); 3084 3085 if (data->isoc) 3086 usb_set_intfdata(data->isoc, NULL); 3087 3088 if (data->diag) 3089 usb_set_intfdata(data->diag, NULL); 3090 3091 hci_unregister_dev(hdev); 3092 3093 if (intf == data->intf) { 3094 if (data->isoc) 3095 usb_driver_release_interface(&btusb_driver, data->isoc); 3096 if (data->diag) 3097 usb_driver_release_interface(&btusb_driver, data->diag); 3098 } else if (intf == data->isoc) { 3099 if (data->diag) 3100 usb_driver_release_interface(&btusb_driver, data->diag); 3101 usb_driver_release_interface(&btusb_driver, data->intf); 3102 } else if (intf == data->diag) { 3103 usb_driver_release_interface(&btusb_driver, data->intf); 3104 if (data->isoc) 3105 usb_driver_release_interface(&btusb_driver, data->isoc); 3106 } 3107 3108 hci_free_dev(hdev); 3109} 3110 3111#ifdef CONFIG_PM 3112static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3113{ 3114 struct btusb_data *data = usb_get_intfdata(intf); 3115 3116 BT_DBG("intf %p", intf); 3117 3118 if (data->suspend_count++) 3119 return 0; 3120 3121 spin_lock_irq(&data->txlock); 3122 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3123 set_bit(BTUSB_SUSPENDING, &data->flags); 3124 spin_unlock_irq(&data->txlock); 3125 } else { 3126 spin_unlock_irq(&data->txlock); 3127 data->suspend_count--; 3128 return -EBUSY; 3129 } 3130 3131 cancel_work_sync(&data->work); 3132 3133 btusb_stop_traffic(data); 3134 usb_kill_anchored_urbs(&data->tx_anchor); 3135 3136 /* Optionally request a device reset on resume, but only when 3137 * wakeups are disabled. If wakeups are enabled we assume the 3138 * device will stay powered up throughout suspend. 3139 */ 3140 if (test_bit(BTUSB_RESET_RESUME, &data->flags) && 3141 !device_may_wakeup(&data->udev->dev)) 3142 data->udev->reset_resume = 1; 3143 3144 return 0; 3145} 3146 3147static void play_deferred(struct btusb_data *data) 3148{ 3149 struct urb *urb; 3150 int err; 3151 3152 while ((urb = usb_get_from_anchor(&data->deferred))) { 3153 err = usb_submit_urb(urb, GFP_ATOMIC); 3154 if (err < 0) 3155 break; 3156 3157 data->tx_in_flight++; 3158 } 3159 usb_scuttle_anchored_urbs(&data->deferred); 3160} 3161 3162static int btusb_resume(struct usb_interface *intf) 3163{ 3164 struct btusb_data *data = usb_get_intfdata(intf); 3165 struct hci_dev *hdev = data->hdev; 3166 int err = 0; 3167 3168 BT_DBG("intf %p", intf); 3169 3170 if (--data->suspend_count) 3171 return 0; 3172 3173 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3174 goto done; 3175 3176 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3177 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3178 if (err < 0) { 3179 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3180 goto failed; 3181 } 3182 } 3183 3184 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3185 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3186 if (err < 0) { 3187 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3188 goto failed; 3189 } 3190 3191 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3192 } 3193 3194 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3195 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3196 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3197 else 3198 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3199 } 3200 3201 spin_lock_irq(&data->txlock); 3202 play_deferred(data); 3203 clear_bit(BTUSB_SUSPENDING, &data->flags); 3204 spin_unlock_irq(&data->txlock); 3205 schedule_work(&data->work); 3206 3207 return 0; 3208 3209failed: 3210 usb_scuttle_anchored_urbs(&data->deferred); 3211done: 3212 spin_lock_irq(&data->txlock); 3213 clear_bit(BTUSB_SUSPENDING, &data->flags); 3214 spin_unlock_irq(&data->txlock); 3215 3216 return err; 3217} 3218#endif 3219 3220static struct usb_driver btusb_driver = { 3221 .name = "btusb", 3222 .probe = btusb_probe, 3223 .disconnect = btusb_disconnect, 3224#ifdef CONFIG_PM 3225 .suspend = btusb_suspend, 3226 .resume = btusb_resume, 3227#endif 3228 .id_table = btusb_table, 3229 .supports_autosuspend = 1, 3230 .disable_hub_initiated_lpm = 1, 3231}; 3232 3233module_usb_driver(btusb_driver); 3234 3235module_param(disable_scofix, bool, 0644); 3236MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3237 3238module_param(force_scofix, bool, 0644); 3239MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3240 3241module_param(reset, bool, 0644); 3242MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3243 3244MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3245MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3246MODULE_VERSION(VERSION); 3247MODULE_LICENSE("GPL"); 3248