Cho, Yu-Chen | 0d751ec | 2013-05-16 16:31:59 +0800 | [diff] [blame] | 1 | /* |
| 2 | * MediaTek Bluetooth USB Driver |
| 3 | * |
| 4 | * Copyright (C) 2013, MediaTek co. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | * or on the worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include <linux/kernel.h> |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/slab.h> |
| 27 | #include <linux/types.h> |
| 28 | #include <linux/sched.h> |
| 29 | #include <linux/errno.h> |
| 30 | #include <linux/skbuff.h> |
| 31 | #include <linux/completion.h> |
| 32 | #include <linux/firmware.h> |
| 33 | #include <linux/usb.h> |
Cho, Yu-Chen | 0d751ec | 2013-05-16 16:31:59 +0800 | [diff] [blame] | 34 | #include <net/bluetooth/bluetooth.h> |
| 35 | #include <net/bluetooth/hci_core.h> |
| 36 | |
| 37 | #include "btmtk_usb.h" |
| 38 | |
| 39 | #define VERSION "1.0.4" |
| 40 | #define MT7650_FIRMWARE "mt7650.bin" |
| 41 | #define MT7662_FIRMWARE "mt7662.bin" |
| 42 | |
| 43 | static struct usb_driver btmtk_usb_driver; |
| 44 | |
| 45 | |
| 46 | static int btmtk_usb_load_rom_patch(struct btmtk_usb_data *); |
| 47 | static int btmtk_usb_load_fw(struct btmtk_usb_data *); |
| 48 | |
Peter Huewe | d1eef5b | 2013-05-17 23:51:58 +0200 | [diff] [blame] | 49 | static void hex_dump(char *str, u8 *src_buf, u32 src_buf_len) |
Cho, Yu-Chen | 0d751ec | 2013-05-16 16:31:59 +0800 | [diff] [blame] | 50 | { |
| 51 | unsigned char *pt; |
| 52 | int x; |
| 53 | |
| 54 | pt = src_buf; |
| 55 | |
| 56 | BT_DBG("%s: %p, len = %d\n", str, src_buf, src_buf_len); |
| 57 | |
| 58 | for (x = 0; x < src_buf_len; x++) { |
| 59 | if (x % 16 == 0) |
| 60 | BT_DBG("0x%04x : ", x); |
| 61 | BT_DBG("%02x ", ((unsigned char)pt[x])); |
| 62 | if (x % 16 == 15) |
| 63 | BT_DBG("\n"); |
| 64 | } |
| 65 | |
| 66 | BT_DBG("\n"); |
| 67 | } |
| 68 | |
| 69 | static int btmtk_usb_reset(struct usb_device *udev) |
| 70 | { |
| 71 | int ret; |
| 72 | |
| 73 | BT_DBG("%s\n", __func__); |
| 74 | |
| 75 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01, DEVICE_VENDOR_REQUEST_OUT, |
| 76 | 0x01, 0x00, NULL, 0x00, CONTROL_TIMEOUT_JIFFIES); |
| 77 | |
| 78 | if (ret < 0) { |
| 79 | BT_ERR("%s error(%d)\n", __func__, ret); |
| 80 | return ret; |
| 81 | } |
| 82 | |
| 83 | if (ret > 0) |
| 84 | ret = 0; |
| 85 | |
| 86 | return ret; |
| 87 | } |
| 88 | |
| 89 | static int btmtk_usb_io_read32(struct btmtk_usb_data *data, u32 reg, u32 *val) |
| 90 | { |
| 91 | u8 request = data->r_request; |
| 92 | struct usb_device *udev = data->udev; |
| 93 | int ret; |
| 94 | |
| 95 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), request, DEVICE_VENDOR_REQUEST_IN, |
| 96 | 0x0, reg, data->io_buf, 4, |
| 97 | CONTROL_TIMEOUT_JIFFIES); |
| 98 | |
| 99 | if (ret < 0) { |
| 100 | *val = 0xffffffff; |
| 101 | BT_ERR("%s error(%d), reg=%x, value=%x\n", __func__, ret, reg, *val); |
| 102 | return ret; |
| 103 | } |
| 104 | |
| 105 | memmove(val, data->io_buf, 4); |
| 106 | |
| 107 | *val = le32_to_cpu(*val); |
| 108 | |
| 109 | if (ret > 0) |
| 110 | ret = 0; |
| 111 | |
| 112 | return ret; |
| 113 | } |
| 114 | |
| 115 | static int btmtk_usb_io_write32(struct btmtk_usb_data *data, u32 reg, u32 val) |
| 116 | { |
| 117 | u16 value, index; |
| 118 | u8 request = data->w_request; |
| 119 | struct usb_device *udev = data->udev; |
| 120 | int ret; |
| 121 | |
| 122 | index = (u16)reg; |
| 123 | value = val & 0x0000ffff; |
| 124 | |
| 125 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), request, DEVICE_VENDOR_REQUEST_OUT, |
| 126 | value, index, NULL, 0, |
| 127 | CONTROL_TIMEOUT_JIFFIES); |
| 128 | |
| 129 | if (ret < 0) { |
| 130 | BT_ERR("%s error(%d), reg=%x, value=%x\n", __func__, ret, reg, val); |
| 131 | return ret; |
| 132 | } |
| 133 | |
| 134 | index = (u16)(reg + 2); |
| 135 | value = (val & 0xffff0000) >> 16; |
| 136 | |
| 137 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
| 138 | request, DEVICE_VENDOR_REQUEST_OUT, |
| 139 | value, index, NULL, 0, CONTROL_TIMEOUT_JIFFIES); |
| 140 | |
| 141 | if (ret < 0) { |
| 142 | BT_ERR("%s error(%d), reg=%x, value=%x\n", __func__, ret, reg, val); |
| 143 | return ret; |
| 144 | } |
| 145 | |
| 146 | if (ret > 0) |
| 147 | ret = 0; |
| 148 | |
| 149 | return ret; |
| 150 | } |
| 151 | |
| 152 | static int btmtk_usb_switch_iobase(struct btmtk_usb_data *data, int base) |
| 153 | { |
| 154 | int ret = 0; |
| 155 | |
| 156 | switch (base) { |
| 157 | case SYSCTL: |
| 158 | data->w_request = 0x42; |
| 159 | data->r_request = 0x47; |
| 160 | break; |
| 161 | case WLAN: |
| 162 | data->w_request = 0x02; |
| 163 | data->r_request = 0x07; |
| 164 | break; |
| 165 | |
| 166 | default: |
| 167 | return -EINVAL; |
| 168 | } |
| 169 | |
| 170 | return ret; |
| 171 | } |
| 172 | |
| 173 | static void btmtk_usb_cap_init(struct btmtk_usb_data *data) |
| 174 | { |
| 175 | const struct firmware *firmware; |
| 176 | struct usb_device *udev = data->udev; |
| 177 | int ret; |
| 178 | |
| 179 | btmtk_usb_io_read32(data, 0x00, &data->chip_id); |
| 180 | |
| 181 | BT_DBG("chip id = %x\n", data->chip_id); |
| 182 | |
| 183 | if (is_mt7630(data) || is_mt7650(data)) { |
| 184 | data->need_load_fw = 1; |
| 185 | data->need_load_rom_patch = 0; |
| 186 | ret = request_firmware(&firmware, MT7650_FIRMWARE, &udev->dev); |
| 187 | if (ret < 0) { |
| 188 | if (ret == -ENOENT) { |
| 189 | BT_ERR("Firmware file \"%s\" not found \n", MT7650_FIRMWARE); |
| 190 | } else { |
| 191 | BT_ERR("Firmware file \"%s\" request failed (err=%d) \n", |
| 192 | MT7650_FIRMWARE, ret); |
| 193 | } |
| 194 | } else { |
| 195 | BT_DBG("Firmware file \"%s\" Found \n", MT7650_FIRMWARE); |
| 196 | /* load firmware here */ |
| 197 | data->firmware = firmware; |
| 198 | btmtk_usb_load_fw(data); |
| 199 | } |
| 200 | release_firmware(firmware); |
| 201 | } else if (is_mt7632(data) || is_mt7662(data)) { |
| 202 | data->need_load_fw = 0; |
| 203 | data->need_load_rom_patch = 1; |
| 204 | data->rom_patch_offset = 0x90000; |
| 205 | ret = request_firmware(&firmware, MT7662_FIRMWARE, &udev->dev); |
| 206 | if (ret < 0) { |
| 207 | if (ret == -ENOENT) { |
| 208 | BT_ERR("Firmware file \"%s\" not found\n", MT7662_FIRMWARE); |
| 209 | } else { |
| 210 | BT_ERR("Firmware file \"%s\" request failed (err=%d)\n", |
| 211 | MT7662_FIRMWARE, ret); |
| 212 | } |
| 213 | } else { |
| 214 | BT_DBG("Firmware file \"%s\" Found\n", MT7662_FIRMWARE); |
| 215 | /* load rom patch here */ |
| 216 | data->firmware = firmware; |
| 217 | data->rom_patch_len = firmware->size; |
| 218 | btmtk_usb_load_rom_patch(data); |
| 219 | } |
| 220 | release_firmware(firmware); |
| 221 | } else { |
| 222 | BT_ERR("unknow chip(%x)\n", data->chip_id); |
| 223 | } |
| 224 | } |
| 225 | |
Peter Huewe | d1eef5b | 2013-05-17 23:51:58 +0200 | [diff] [blame] | 226 | static u16 checksume16(u8 *pData, int len) |
Cho, Yu-Chen | 0d751ec | 2013-05-16 16:31:59 +0800 | [diff] [blame] | 227 | { |
| 228 | int sum = 0; |
| 229 | |
| 230 | while (len > 1) { |
| 231 | sum += *((u16 *)pData); |
| 232 | |
| 233 | pData = pData + 2; |
| 234 | |
| 235 | if (sum & 0x80000000) |
| 236 | sum = (sum & 0xFFFF) + (sum >> 16); |
| 237 | |
| 238 | len -= 2; |
| 239 | } |
| 240 | |
| 241 | if (len) |
| 242 | sum += *((u8 *)pData); |
| 243 | |
| 244 | while (sum >> 16) { |
| 245 | sum = (sum & 0xFFFF) + (sum >> 16); |
| 246 | } |
| 247 | |
| 248 | return ~sum; |
| 249 | } |
| 250 | |
| 251 | static int btmtk_usb_chk_crc(struct btmtk_usb_data *data, u32 checksum_len) |
| 252 | { |
| 253 | int ret = 0; |
| 254 | struct usb_device *udev = data->udev; |
| 255 | |
| 256 | BT_DBG("%s\n", __func__); |
| 257 | |
| 258 | memmove(data->io_buf, &data->rom_patch_offset, 4); |
| 259 | memmove(&data->io_buf[4], &checksum_len, 4); |
| 260 | |
| 261 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x1, DEVICE_VENDOR_REQUEST_IN, |
| 262 | 0x20, 0x00, data->io_buf, 8, |
| 263 | CONTROL_TIMEOUT_JIFFIES); |
| 264 | |
| 265 | if (ret < 0) { |
| 266 | BT_ERR("%s error(%d)\n", __func__, ret); |
| 267 | } |
| 268 | |
| 269 | return ret; |
| 270 | } |
| 271 | |
| 272 | static u16 btmtk_usb_get_crc(struct btmtk_usb_data *data) |
| 273 | { |
| 274 | int ret = 0; |
| 275 | struct usb_device *udev = data->udev; |
| 276 | u16 crc, count = 0; |
| 277 | |
| 278 | BT_DBG("%s\n", __func__); |
| 279 | |
| 280 | while (1) { |
| 281 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
| 282 | 0x01, DEVICE_VENDOR_REQUEST_IN, |
| 283 | 0x21, 0x00, data->io_buf, 2, |
| 284 | CONTROL_TIMEOUT_JIFFIES); |
| 285 | |
| 286 | if (ret < 0) { |
| 287 | crc = 0xFFFF; |
| 288 | BT_ERR("%s error(%d)\n", __func__, ret); |
| 289 | } |
| 290 | |
| 291 | memmove(&crc, data->io_buf, 2); |
| 292 | |
| 293 | crc = le16_to_cpu(crc); |
| 294 | |
| 295 | if (crc != 0xFFFF) |
| 296 | break; |
| 297 | |
| 298 | mdelay(100); |
| 299 | |
| 300 | if (count++ > 100) { |
| 301 | BT_ERR("Query CRC over %d times\n", count); |
| 302 | break; |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | return crc; |
| 307 | } |
| 308 | |
| 309 | static int btmtk_usb_reset_wmt(struct btmtk_usb_data *data) |
| 310 | { |
| 311 | int ret = 0; |
| 312 | |
| 313 | /* reset command */ |
| 314 | u8 cmd[8] = {0x6F, 0xFC, 0x05, 0x01, 0x07, 0x01, 0x00, 0x04}; |
| 315 | |
| 316 | memmove(data->io_buf, cmd, 8); |
| 317 | |
| 318 | BT_DBG("%s\n", __func__); |
| 319 | |
| 320 | ret = usb_control_msg(data->udev, usb_sndctrlpipe(data->udev, 0), 0x01, |
| 321 | DEVICE_CLASS_REQUEST_OUT, 0x12, 0x00, data->io_buf, |
| 322 | 8, CONTROL_TIMEOUT_JIFFIES); |
| 323 | |
| 324 | if (ret) |
| 325 | BT_ERR("%s:(%d)\n", __func__, ret); |
| 326 | |
| 327 | return ret; |
| 328 | } |
| 329 | |
| 330 | static void load_rom_patch_complete(struct urb *urb) |
| 331 | { |
| 332 | |
| 333 | struct completion *sent_to_mcu_done = (struct completion *)urb->context; |
| 334 | |
| 335 | complete(sent_to_mcu_done); |
| 336 | } |
| 337 | |
| 338 | static int btmtk_usb_load_rom_patch(struct btmtk_usb_data *data) |
| 339 | { |
| 340 | u32 loop = 0; |
| 341 | u32 value; |
| 342 | s32 sent_len; |
| 343 | int ret = 0, total_checksum = 0; |
| 344 | struct urb *urb; |
| 345 | u32 patch_len = 0; |
| 346 | u32 cur_len = 0; |
| 347 | dma_addr_t data_dma; |
| 348 | struct completion sent_to_mcu_done; |
| 349 | int first_block = 1; |
| 350 | unsigned char phase; |
| 351 | void *buf; |
| 352 | char *pos; |
| 353 | unsigned int pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); |
| 354 | |
| 355 | if (!data->firmware) { |
| 356 | BT_ERR("%s:please assign a rom patch\n", __func__); |
| 357 | return -1; |
| 358 | } |
| 359 | |
| 360 | load_patch_protect: |
| 361 | btmtk_usb_switch_iobase(data, WLAN); |
| 362 | btmtk_usb_io_read32(data, SEMAPHORE_03, &value); |
| 363 | loop++; |
| 364 | |
| 365 | if (((value & 0x01) == 0x00) && (loop < 600)) { |
| 366 | mdelay(1); |
| 367 | goto load_patch_protect; |
| 368 | } |
| 369 | |
| 370 | btmtk_usb_io_write32(data, 0x1004, 0x2c); |
| 371 | |
| 372 | btmtk_usb_switch_iobase(data, SYSCTL); |
| 373 | |
| 374 | btmtk_usb_io_write32(data, 0x1c, 0x30); |
| 375 | |
| 376 | /* Enable USB_DMA_CFG */ |
| 377 | btmtk_usb_io_write32(data, 0x9018, 0x00c00020); |
| 378 | |
| 379 | btmtk_usb_switch_iobase(data, WLAN); |
| 380 | |
| 381 | /* check ROM patch if upgrade */ |
| 382 | btmtk_usb_io_read32(data, COM_REG0, &value); |
| 383 | |
| 384 | if ((value & 0x02) == 0x02) |
| 385 | goto error0; |
| 386 | |
| 387 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 388 | |
| 389 | if (!urb) { |
| 390 | ret = -ENOMEM; |
| 391 | goto error0; |
| 392 | } |
| 393 | |
| 394 | buf = usb_alloc_coherent(data->udev, UPLOAD_PATCH_UNIT, GFP_ATOMIC, &data_dma); |
| 395 | |
| 396 | if (!buf) { |
| 397 | ret = -ENOMEM; |
| 398 | goto error1; |
| 399 | } |
| 400 | |
| 401 | pos = buf; |
| 402 | BT_DBG("loading rom patch"); |
| 403 | |
| 404 | init_completion(&sent_to_mcu_done); |
| 405 | |
| 406 | cur_len = 0x00; |
| 407 | patch_len = data->rom_patch_len - PATCH_INFO_SIZE; |
| 408 | |
| 409 | /* loading rom patch */ |
| 410 | while (1) { |
| 411 | s32 sent_len_max = UPLOAD_PATCH_UNIT - PATCH_HEADER_SIZE; |
| 412 | sent_len = (patch_len - cur_len) >= sent_len_max ? sent_len_max : (patch_len - cur_len); |
| 413 | |
| 414 | BT_DBG("patch_len = %d\n", patch_len); |
| 415 | BT_DBG("cur_len = %d\n", cur_len); |
| 416 | BT_DBG("sent_len = %d\n", sent_len); |
| 417 | |
| 418 | if (sent_len > 0) { |
| 419 | if (first_block == 1) { |
| 420 | if (sent_len < sent_len_max) |
| 421 | phase = PATCH_PHASE3; |
| 422 | else |
| 423 | phase = PATCH_PHASE1; |
| 424 | first_block = 0; |
| 425 | } else if (sent_len == sent_len_max) { |
| 426 | phase = PATCH_PHASE2; |
| 427 | } else { |
| 428 | phase = PATCH_PHASE3; |
| 429 | } |
| 430 | |
| 431 | /* prepare HCI header */ |
| 432 | pos[0] = 0x6F; |
| 433 | pos[1] = 0xFC; |
| 434 | pos[2] = (sent_len + 5) & 0xFF; |
| 435 | pos[3] = ((sent_len + 5) >> 8) & 0xFF; |
| 436 | |
| 437 | /* prepare WMT header */ |
| 438 | pos[4] = 0x01; |
| 439 | pos[5] = 0x01; |
| 440 | pos[6] = (sent_len + 1) & 0xFF; |
| 441 | pos[7] = ((sent_len + 1) >> 8) & 0xFF; |
| 442 | |
| 443 | pos[8] = phase; |
| 444 | |
| 445 | memcpy(&pos[9], data->firmware->data + PATCH_INFO_SIZE + cur_len, sent_len); |
| 446 | |
| 447 | BT_DBG("sent_len + PATCH_HEADER_SIZE = %d, phase = %d\n", |
| 448 | sent_len + PATCH_HEADER_SIZE, phase); |
| 449 | |
| 450 | usb_fill_bulk_urb(urb, |
| 451 | data->udev, |
| 452 | pipe, |
| 453 | buf, |
| 454 | sent_len + PATCH_HEADER_SIZE, |
| 455 | load_rom_patch_complete, |
| 456 | &sent_to_mcu_done); |
| 457 | |
| 458 | urb->transfer_dma = data_dma; |
| 459 | urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| 460 | |
| 461 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
| 462 | |
| 463 | if (ret) |
| 464 | goto error2; |
| 465 | |
| 466 | if (!wait_for_completion_timeout(&sent_to_mcu_done, msecs_to_jiffies(1000))) { |
| 467 | usb_kill_urb(urb); |
| 468 | BT_ERR("upload rom_patch timeout\n"); |
| 469 | goto error2; |
| 470 | } |
| 471 | |
| 472 | BT_DBG("."); |
| 473 | |
| 474 | mdelay(200); |
| 475 | |
| 476 | cur_len += sent_len; |
| 477 | |
| 478 | } else { |
| 479 | break; |
| 480 | } |
| 481 | } |
| 482 | |
| 483 | total_checksum = checksume16((u8 *)data->firmware->data + PATCH_INFO_SIZE, patch_len); |
| 484 | |
| 485 | BT_DBG("Send checksum req..\n"); |
| 486 | |
| 487 | btmtk_usb_chk_crc(data, patch_len); |
| 488 | |
| 489 | mdelay(20); |
| 490 | |
| 491 | if (total_checksum != btmtk_usb_get_crc(data)) { |
| 492 | BT_ERR("checksum fail!, local(0x%x) <> fw(0x%x)\n", |
| 493 | total_checksum, btmtk_usb_get_crc(data)); |
| 494 | ret = -1; |
| 495 | goto error2; |
| 496 | } |
| 497 | |
| 498 | mdelay(20); |
| 499 | |
| 500 | ret = btmtk_usb_reset_wmt(data); |
| 501 | |
| 502 | mdelay(20); |
| 503 | |
| 504 | error2: |
| 505 | usb_free_coherent(data->udev, UPLOAD_PATCH_UNIT, buf, data_dma); |
| 506 | error1: |
| 507 | usb_free_urb(urb); |
| 508 | error0: |
| 509 | btmtk_usb_io_write32(data, SEMAPHORE_03, 0x1); |
| 510 | return ret; |
| 511 | } |
| 512 | |
| 513 | |
| 514 | static int load_fw_iv(struct btmtk_usb_data *data) |
| 515 | { |
| 516 | int ret; |
| 517 | struct usb_device *udev = data->udev; |
| 518 | char *buf = kmalloc(64, GFP_ATOMIC); |
| 519 | |
| 520 | memmove(buf, data->firmware->data + 32, 64); |
| 521 | |
| 522 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01, |
| 523 | DEVICE_VENDOR_REQUEST_OUT, 0x12, 0x0, buf, 64, |
| 524 | CONTROL_TIMEOUT_JIFFIES); |
| 525 | |
| 526 | if (ret < 0) { |
| 527 | BT_ERR("%s error(%d) step4\n", __func__, ret); |
| 528 | kfree(buf); |
| 529 | return ret; |
| 530 | } |
| 531 | |
| 532 | if (ret > 0) |
| 533 | ret = 0; |
| 534 | |
| 535 | kfree(buf); |
| 536 | |
| 537 | return ret; |
| 538 | } |
| 539 | |
| 540 | static void load_fw_complete(struct urb *urb) |
| 541 | { |
| 542 | |
| 543 | struct completion *sent_to_mcu_done = (struct completion *)urb->context; |
| 544 | |
| 545 | complete(sent_to_mcu_done); |
| 546 | } |
| 547 | |
| 548 | static int btmtk_usb_load_fw(struct btmtk_usb_data *data) |
| 549 | { |
| 550 | struct usb_device *udev = data->udev; |
| 551 | struct urb *urb; |
| 552 | void *buf; |
| 553 | u32 cur_len = 0; |
| 554 | u32 packet_header = 0; |
| 555 | u32 value; |
| 556 | u32 ilm_len = 0, dlm_len = 0; |
| 557 | u16 fw_ver, build_ver; |
| 558 | u32 loop = 0; |
| 559 | dma_addr_t data_dma; |
| 560 | int ret = 0, sent_len; |
| 561 | struct completion sent_to_mcu_done; |
| 562 | unsigned int pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); |
| 563 | |
| 564 | if (!data->firmware) { |
| 565 | BT_ERR("%s:please assign a fw\n", __func__); |
| 566 | return -1; |
| 567 | } |
| 568 | |
| 569 | BT_DBG("bulk_tx_ep = %x\n", data->bulk_tx_ep->bEndpointAddress); |
| 570 | |
| 571 | loadfw_protect: |
| 572 | btmtk_usb_switch_iobase(data, WLAN); |
| 573 | btmtk_usb_io_read32(data, SEMAPHORE_00, &value); |
| 574 | loop++; |
| 575 | |
| 576 | if (((value & 0x1) == 0) && (loop < 10000)) |
| 577 | goto loadfw_protect; |
| 578 | |
| 579 | /* check MCU if ready */ |
| 580 | btmtk_usb_io_read32(data, COM_REG0, &value); |
| 581 | |
| 582 | if ((value & 0x01) == 0x01) |
| 583 | goto error0; |
| 584 | |
| 585 | /* Enable MPDMA TX and EP2 load FW mode */ |
| 586 | btmtk_usb_io_write32(data, 0x238, 0x1c000000); |
| 587 | |
| 588 | btmtk_usb_reset(udev); |
| 589 | mdelay(100); |
| 590 | |
| 591 | ilm_len = (*(data->firmware->data + 3) << 24) |
| 592 | | (*(data->firmware->data + 2) << 16) |
| 593 | | (*(data->firmware->data + 1) << 8) |
| 594 | | (*data->firmware->data); |
| 595 | |
| 596 | dlm_len = (*(data->firmware->data + 7) << 24) |
| 597 | | (*(data->firmware->data + 6) << 16) |
| 598 | | (*(data->firmware->data + 5) << 8) |
| 599 | | (*(data->firmware->data + 4)); |
| 600 | |
| 601 | fw_ver = (*(data->firmware->data + 11) << 8) | (*(data->firmware->data + 10)); |
| 602 | |
| 603 | build_ver = (*(data->firmware->data + 9) << 8) | (*(data->firmware->data + 8)); |
| 604 | |
| 605 | BT_DBG("fw version:%d.%d.%02d ", |
| 606 | (fw_ver & 0xf000) >> 8, |
| 607 | (fw_ver & 0x0f00) >> 8, |
| 608 | (fw_ver & 0x00ff)); |
| 609 | |
| 610 | BT_DBG("build:%x\n", build_ver); |
| 611 | |
| 612 | BT_DBG("build Time ="); |
| 613 | |
| 614 | for (loop = 0; loop < 16; loop++) |
| 615 | BT_DBG("%c", *(data->firmware->data + 16 + loop)); |
| 616 | |
| 617 | BT_DBG("\n"); |
| 618 | |
| 619 | BT_DBG("ILM length = %d(bytes)\n", ilm_len); |
| 620 | BT_DBG("DLM length = %d(bytes)\n", dlm_len); |
| 621 | |
| 622 | btmtk_usb_switch_iobase(data, SYSCTL); |
| 623 | |
| 624 | /* U2M_PDMA rx_ring_base_ptr */ |
| 625 | btmtk_usb_io_write32(data, 0x790, 0x400230); |
| 626 | |
| 627 | /* U2M_PDMA rx_ring_max_cnt */ |
| 628 | btmtk_usb_io_write32(data, 0x794, 0x1); |
| 629 | |
| 630 | /* U2M_PDMA cpu_idx */ |
| 631 | btmtk_usb_io_write32(data, 0x798, 0x1); |
| 632 | |
| 633 | /* U2M_PDMA enable */ |
| 634 | btmtk_usb_io_write32(data, 0x704, 0x44); |
| 635 | |
| 636 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 637 | |
| 638 | if (!urb) { |
| 639 | ret = -ENOMEM; |
| 640 | goto error1; |
| 641 | } |
| 642 | |
| 643 | buf = usb_alloc_coherent(udev, 14592, GFP_ATOMIC, &data_dma); |
| 644 | |
| 645 | if (!buf) { |
| 646 | ret = -ENOMEM; |
| 647 | goto error2; |
| 648 | } |
| 649 | |
| 650 | BT_DBG("loading fw"); |
| 651 | |
| 652 | init_completion(&sent_to_mcu_done); |
| 653 | |
| 654 | btmtk_usb_switch_iobase(data, SYSCTL); |
| 655 | |
| 656 | cur_len = 0x40; |
| 657 | |
| 658 | /* Loading ILM */ |
| 659 | while (1) { |
| 660 | sent_len = (ilm_len - cur_len) >= 14336 ? 14336 : (ilm_len - cur_len); |
| 661 | |
| 662 | if (sent_len > 0) { |
| 663 | packet_header &= ~(0xffffffff); |
| 664 | packet_header |= (sent_len << 16); |
| 665 | packet_header = cpu_to_le32(packet_header); |
| 666 | |
| 667 | memmove(buf, &packet_header, 4); |
| 668 | memmove(buf + 4, data->firmware->data + 32 + cur_len, sent_len); |
| 669 | |
| 670 | /* U2M_PDMA descriptor */ |
| 671 | btmtk_usb_io_write32(data, 0x230, cur_len); |
| 672 | |
| 673 | while ((sent_len % 4) != 0) { |
| 674 | sent_len++; |
| 675 | } |
| 676 | |
| 677 | /* U2M_PDMA length */ |
| 678 | btmtk_usb_io_write32(data, 0x234, sent_len << 16); |
| 679 | |
| 680 | usb_fill_bulk_urb(urb, |
| 681 | udev, |
| 682 | pipe, |
| 683 | buf, |
| 684 | sent_len + 4, |
| 685 | load_fw_complete, |
| 686 | &sent_to_mcu_done); |
| 687 | |
| 688 | urb->transfer_dma = data_dma; |
| 689 | urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| 690 | |
| 691 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
| 692 | |
| 693 | if (ret) |
| 694 | goto error3; |
| 695 | |
| 696 | if (!wait_for_completion_timeout(&sent_to_mcu_done, msecs_to_jiffies(1000))) { |
| 697 | usb_kill_urb(urb); |
| 698 | BT_ERR("upload ilm fw timeout\n"); |
| 699 | goto error3; |
| 700 | } |
| 701 | |
| 702 | BT_DBG("."); |
| 703 | |
| 704 | mdelay(200); |
| 705 | |
| 706 | cur_len += sent_len; |
| 707 | } else { |
| 708 | break; |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | init_completion(&sent_to_mcu_done); |
| 713 | cur_len = 0x00; |
| 714 | |
| 715 | /* Loading DLM */ |
| 716 | while (1) { |
| 717 | sent_len = (dlm_len - cur_len) >= 14336 ? 14336 : (dlm_len - cur_len); |
| 718 | |
| 719 | if (sent_len > 0) { |
| 720 | packet_header &= ~(0xffffffff); |
| 721 | packet_header |= (sent_len << 16); |
| 722 | packet_header = cpu_to_le32(packet_header); |
| 723 | |
| 724 | memmove(buf, &packet_header, 4); |
| 725 | memmove(buf + 4, data->firmware->data + 32 + ilm_len + cur_len, sent_len); |
| 726 | |
| 727 | /* U2M_PDMA descriptor */ |
| 728 | btmtk_usb_io_write32(data, 0x230, 0x80000 + cur_len); |
| 729 | |
| 730 | while ((sent_len % 4) != 0) { |
| 731 | BT_DBG("sent_len is not divided by 4\n"); |
| 732 | sent_len++; |
| 733 | } |
| 734 | |
| 735 | /* U2M_PDMA length */ |
| 736 | btmtk_usb_io_write32(data, 0x234, sent_len << 16); |
| 737 | |
| 738 | usb_fill_bulk_urb(urb, |
| 739 | udev, |
| 740 | pipe, |
| 741 | buf, |
| 742 | sent_len + 4, |
| 743 | load_fw_complete, |
| 744 | &sent_to_mcu_done); |
| 745 | |
| 746 | urb->transfer_dma = data_dma; |
| 747 | urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| 748 | |
| 749 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
| 750 | |
| 751 | if (ret) |
| 752 | goto error3; |
| 753 | |
| 754 | if (!wait_for_completion_timeout(&sent_to_mcu_done, msecs_to_jiffies(1000))) { |
| 755 | usb_kill_urb(urb); |
| 756 | BT_ERR("upload dlm fw timeout\n"); |
| 757 | goto error3; |
| 758 | } |
| 759 | |
| 760 | BT_DBG("."); |
| 761 | |
| 762 | mdelay(500); |
| 763 | |
| 764 | cur_len += sent_len; |
| 765 | |
| 766 | } else { |
| 767 | break; |
| 768 | } |
| 769 | } |
| 770 | |
| 771 | /* upload 64bytes interrupt vector */ |
| 772 | ret = load_fw_iv(data); |
| 773 | mdelay(100); |
| 774 | |
| 775 | btmtk_usb_switch_iobase(data, WLAN); |
| 776 | |
| 777 | /* check MCU if ready */ |
| 778 | loop = 0; |
| 779 | |
| 780 | do { |
| 781 | btmtk_usb_io_read32(data, COM_REG0, &value); |
| 782 | |
| 783 | if (value == 0x01) |
| 784 | break; |
| 785 | |
| 786 | mdelay(10); |
| 787 | loop++; |
| 788 | } while (loop <= 100); |
| 789 | |
| 790 | if (loop > 1000) { |
| 791 | BT_ERR("wait for 100 times\n"); |
| 792 | ret = -ENODEV; |
| 793 | } |
| 794 | |
| 795 | error3: |
| 796 | usb_free_coherent(udev, 14592, buf, data_dma); |
| 797 | error2: |
| 798 | usb_free_urb(urb); |
| 799 | error1: |
| 800 | /* Disbale load fw mode */ |
| 801 | btmtk_usb_io_read32(data, 0x238, &value); |
| 802 | value = value & ~(0x10000000); |
| 803 | btmtk_usb_io_write32(data, 0x238, value); |
| 804 | error0: |
| 805 | btmtk_usb_io_write32(data, SEMAPHORE_00, 0x1); |
| 806 | return ret; |
| 807 | } |
| 808 | |
| 809 | static int inc_tx(struct btmtk_usb_data *data) |
| 810 | { |
| 811 | unsigned long flags; |
| 812 | int rv; |
| 813 | |
| 814 | spin_lock_irqsave(&data->txlock, flags); |
| 815 | rv = test_bit(BTUSB_SUSPENDING, &data->flags); |
| 816 | if (!rv) |
| 817 | data->tx_in_flight++; |
| 818 | spin_unlock_irqrestore(&data->txlock, flags); |
| 819 | |
| 820 | return rv; |
| 821 | } |
| 822 | |
| 823 | static void btmtk_usb_intr_complete(struct urb *urb) |
| 824 | { |
| 825 | struct hci_dev *hdev = urb->context; |
| 826 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 827 | int err; |
| 828 | |
| 829 | BT_DBG("%s: %s urb %p status %d count %d\n", __func__, hdev->name, |
| 830 | urb, urb->status, urb->actual_length); |
| 831 | |
| 832 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| 833 | return; |
| 834 | |
| 835 | if (urb->status == 0) { |
| 836 | hdev->stat.byte_rx += urb->actual_length; |
| 837 | |
| 838 | hex_dump("hci event", urb->transfer_buffer, urb->actual_length); |
| 839 | |
| 840 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
| 841 | urb->transfer_buffer, |
| 842 | urb->actual_length) < 0) { |
| 843 | BT_ERR("%s corrupted event packet", hdev->name); |
| 844 | hdev->stat.err_rx++; |
| 845 | } |
| 846 | } |
| 847 | |
| 848 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) |
| 849 | return; |
| 850 | |
| 851 | usb_mark_last_busy(data->udev); |
| 852 | usb_anchor_urb(urb, &data->intr_anchor); |
| 853 | |
| 854 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 855 | |
| 856 | if (err < 0) { |
| 857 | /* -EPERM: urb is being killed; |
| 858 | * -ENODEV: device got disconnected */ |
| 859 | if (err != -EPERM && err != -ENODEV) |
| 860 | BT_ERR("%s urb %p failed to resubmit (%d)", |
| 861 | hdev->name, urb, -err); |
| 862 | usb_unanchor_urb(urb); |
| 863 | } |
| 864 | } |
| 865 | |
| 866 | static int btmtk_usb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
| 867 | { |
| 868 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 869 | struct urb *urb; |
| 870 | unsigned char *buf; |
| 871 | unsigned int pipe; |
| 872 | int err, size; |
| 873 | |
| 874 | BT_DBG("%s\n", __func__); |
| 875 | |
| 876 | if (!data->intr_ep) |
| 877 | return -ENODEV; |
| 878 | |
| 879 | urb = usb_alloc_urb(0, mem_flags); |
| 880 | if (!urb) |
| 881 | return -ENOMEM; |
| 882 | |
| 883 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); |
| 884 | |
| 885 | buf = kmalloc(size, mem_flags); |
| 886 | if (!buf) { |
| 887 | usb_free_urb(urb); |
| 888 | return -ENOMEM; |
| 889 | } |
| 890 | |
| 891 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); |
| 892 | |
| 893 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, |
| 894 | btmtk_usb_intr_complete, hdev, |
| 895 | data->intr_ep->bInterval); |
| 896 | |
| 897 | urb->transfer_flags |= URB_FREE_BUFFER; |
| 898 | |
| 899 | usb_anchor_urb(urb, &data->intr_anchor); |
| 900 | |
| 901 | err = usb_submit_urb(urb, mem_flags); |
| 902 | if (err < 0) { |
| 903 | if (err != -EPERM && err != -ENODEV) |
| 904 | BT_ERR("%s urb %p submission failed (%d)", |
| 905 | hdev->name, urb, -err); |
| 906 | usb_unanchor_urb(urb); |
| 907 | } |
| 908 | |
| 909 | usb_free_urb(urb); |
| 910 | |
| 911 | return err; |
| 912 | |
| 913 | } |
| 914 | |
| 915 | static void btmtk_usb_bulk_in_complete(struct urb *urb) |
| 916 | { |
| 917 | struct hci_dev *hdev = urb->context; |
| 918 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 919 | int err; |
| 920 | |
| 921 | BT_DBG("%s:%s urb %p status %d count %d", __func__, hdev->name, |
| 922 | urb, urb->status, urb->actual_length); |
| 923 | |
| 924 | if (!test_bit(HCI_RUNNING, &hdev->flags)) { |
| 925 | return; |
| 926 | } |
| 927 | |
| 928 | if (urb->status == 0) { |
| 929 | hdev->stat.byte_rx += urb->actual_length; |
| 930 | |
| 931 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
| 932 | urb->transfer_buffer, |
| 933 | urb->actual_length) < 0) { |
| 934 | BT_ERR("%s corrupted ACL packet", hdev->name); |
| 935 | hdev->stat.err_rx++; |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) |
| 940 | return; |
| 941 | |
| 942 | usb_anchor_urb(urb, &data->bulk_anchor); |
| 943 | usb_mark_last_busy(data->udev); |
| 944 | |
| 945 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 946 | if (err < 0) { |
| 947 | /* -EPERM: urb is being killed; |
| 948 | * -ENODEV: device got disconnected */ |
| 949 | if (err != -EPERM && err != -ENODEV) |
| 950 | BT_ERR("%s urb %p failed to resubmit (%d)", |
| 951 | hdev->name, urb, -err); |
| 952 | usb_unanchor_urb(urb); |
| 953 | } |
| 954 | } |
| 955 | |
| 956 | static int btmtk_usb_submit_bulk_in_urb(struct hci_dev *hdev, gfp_t mem_flags) |
| 957 | { |
| 958 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 959 | struct urb *urb; |
| 960 | unsigned char *buf; |
| 961 | unsigned int pipe; |
| 962 | int err, size = HCI_MAX_FRAME_SIZE; |
| 963 | |
| 964 | BT_DBG("%s:%s\n", __func__, hdev->name); |
| 965 | |
| 966 | if (!data->bulk_rx_ep) |
| 967 | return -ENODEV; |
| 968 | |
| 969 | urb = usb_alloc_urb(0, mem_flags); |
| 970 | if (!urb) |
| 971 | return -ENOMEM; |
| 972 | |
| 973 | buf = kmalloc(size, mem_flags); |
| 974 | if (!buf) { |
| 975 | usb_free_urb(urb); |
| 976 | return -ENOMEM; |
| 977 | } |
| 978 | |
| 979 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); |
| 980 | |
| 981 | usb_fill_bulk_urb(urb, data->udev, pipe, |
| 982 | buf, size, btmtk_usb_bulk_in_complete, hdev); |
| 983 | |
| 984 | urb->transfer_flags |= URB_FREE_BUFFER; |
| 985 | |
| 986 | usb_mark_last_busy(data->udev); |
| 987 | usb_anchor_urb(urb, &data->bulk_anchor); |
| 988 | |
| 989 | err = usb_submit_urb(urb, mem_flags); |
| 990 | if (err < 0) { |
| 991 | if (err != -EPERM && err != -ENODEV) |
| 992 | BT_ERR("%s urb %p submission failed (%d)", |
| 993 | hdev->name, urb, -err); |
| 994 | usb_unanchor_urb(urb); |
| 995 | } |
| 996 | |
| 997 | usb_free_urb(urb); |
| 998 | |
| 999 | return err; |
| 1000 | } |
| 1001 | |
| 1002 | static void btmtk_usb_isoc_in_complete(struct urb *urb) |
| 1003 | |
| 1004 | { |
| 1005 | struct hci_dev *hdev = urb->context; |
| 1006 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 1007 | int i, err; |
| 1008 | |
| 1009 | BT_DBG("%s: %s urb %p status %d count %d", __func__, hdev->name, |
| 1010 | urb, urb->status, urb->actual_length); |
| 1011 | |
| 1012 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| 1013 | return; |
| 1014 | |
| 1015 | if (urb->status == 0) { |
| 1016 | for (i = 0; i < urb->number_of_packets; i++) { |
| 1017 | unsigned int offset = urb->iso_frame_desc[i].offset; |
| 1018 | unsigned int length = urb->iso_frame_desc[i].actual_length; |
| 1019 | |
| 1020 | if (urb->iso_frame_desc[i].status) |
| 1021 | continue; |
| 1022 | |
| 1023 | hdev->stat.byte_rx += length; |
| 1024 | |
| 1025 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, |
| 1026 | urb->transfer_buffer + offset, |
| 1027 | length) < 0) { |
| 1028 | BT_ERR("%s corrupted SCO packet", hdev->name); |
| 1029 | hdev->stat.err_rx++; |
| 1030 | } |
| 1031 | } |
| 1032 | } |
| 1033 | |
| 1034 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) |
| 1035 | return; |
| 1036 | |
| 1037 | usb_anchor_urb(urb, &data->isoc_anchor); |
| 1038 | |
| 1039 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 1040 | if (err < 0) { |
| 1041 | /* -EPERM: urb is being killed; |
| 1042 | * -ENODEV: device got disconnected */ |
| 1043 | if (err != -EPERM && err != -ENODEV) |
| 1044 | BT_ERR("%s urb %p failed to resubmit (%d)", |
| 1045 | hdev->name, urb, -err); |
| 1046 | usb_unanchor_urb(urb); |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) |
| 1051 | { |
| 1052 | int i, offset = 0; |
| 1053 | |
| 1054 | BT_DBG("len %d mtu %d", len, mtu); |
| 1055 | |
| 1056 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; |
| 1057 | i++, offset += mtu, len -= mtu) { |
| 1058 | urb->iso_frame_desc[i].offset = offset; |
| 1059 | urb->iso_frame_desc[i].length = mtu; |
| 1060 | } |
| 1061 | |
| 1062 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { |
| 1063 | urb->iso_frame_desc[i].offset = offset; |
| 1064 | urb->iso_frame_desc[i].length = len; |
| 1065 | i++; |
| 1066 | } |
| 1067 | |
| 1068 | urb->number_of_packets = i; |
| 1069 | } |
| 1070 | |
| 1071 | static int btmtk_usb_submit_isoc_in_urb(struct hci_dev *hdev, gfp_t mem_flags) |
| 1072 | { |
| 1073 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 1074 | struct urb *urb; |
| 1075 | unsigned char *buf; |
| 1076 | unsigned int pipe; |
| 1077 | int err, size; |
| 1078 | |
| 1079 | BT_DBG("%s\n", __func__); |
| 1080 | |
| 1081 | if (!data->isoc_rx_ep) |
| 1082 | return -ENODEV; |
| 1083 | |
| 1084 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
| 1085 | if (!urb) |
| 1086 | return -ENOMEM; |
| 1087 | |
| 1088 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * |
| 1089 | BTUSB_MAX_ISOC_FRAMES; |
| 1090 | |
| 1091 | buf = kmalloc(size, mem_flags); |
| 1092 | if (!buf) { |
| 1093 | usb_free_urb(urb); |
| 1094 | return -ENOMEM; |
| 1095 | } |
| 1096 | |
| 1097 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); |
| 1098 | |
| 1099 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, btmtk_usb_isoc_in_complete, |
| 1100 | hdev, data->isoc_rx_ep->bInterval); |
| 1101 | |
| 1102 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; |
| 1103 | |
| 1104 | __fill_isoc_descriptor(urb, size, |
| 1105 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); |
| 1106 | |
| 1107 | usb_anchor_urb(urb, &data->isoc_anchor); |
| 1108 | |
| 1109 | err = usb_submit_urb(urb, mem_flags); |
| 1110 | if (err < 0) { |
| 1111 | if (err != -EPERM && err != -ENODEV) |
| 1112 | BT_ERR("%s urb %p submission failed (%d)", |
| 1113 | hdev->name, urb, -err); |
| 1114 | usb_unanchor_urb(urb); |
| 1115 | } |
| 1116 | |
| 1117 | usb_free_urb(urb); |
| 1118 | |
| 1119 | return err; |
| 1120 | } |
| 1121 | |
| 1122 | static int btmtk_usb_open(struct hci_dev *hdev) |
| 1123 | { |
| 1124 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 1125 | int err; |
| 1126 | |
| 1127 | BT_DBG("%s\n", __func__); |
| 1128 | |
| 1129 | err = usb_autopm_get_interface(data->intf); |
| 1130 | if (err < 0) |
| 1131 | return err; |
| 1132 | |
| 1133 | data->intf->needs_remote_wakeup = 1; |
| 1134 | |
| 1135 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
| 1136 | goto done; |
| 1137 | |
| 1138 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) |
| 1139 | goto done; |
| 1140 | |
| 1141 | err = btmtk_usb_submit_intr_urb(hdev, GFP_KERNEL); |
| 1142 | if (err < 0) |
| 1143 | goto failed; |
| 1144 | |
| 1145 | err = btmtk_usb_submit_bulk_in_urb(hdev, GFP_KERNEL); |
| 1146 | if (err < 0) { |
| 1147 | usb_kill_anchored_urbs(&data->intr_anchor); |
| 1148 | goto failed; |
| 1149 | } |
| 1150 | |
| 1151 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
| 1152 | btmtk_usb_submit_bulk_in_urb(hdev, GFP_KERNEL); |
| 1153 | |
| 1154 | done: |
| 1155 | usb_autopm_put_interface(data->intf); |
| 1156 | return 0; |
| 1157 | |
| 1158 | failed: |
| 1159 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
| 1160 | clear_bit(HCI_RUNNING, &hdev->flags); |
| 1161 | usb_autopm_put_interface(data->intf); |
| 1162 | return err; |
| 1163 | } |
| 1164 | |
| 1165 | static void btmtk_usb_stop_traffic(struct btmtk_usb_data *data) |
| 1166 | { |
| 1167 | BT_DBG("%s\n", __func__); |
| 1168 | |
| 1169 | usb_kill_anchored_urbs(&data->intr_anchor); |
| 1170 | usb_kill_anchored_urbs(&data->bulk_anchor); |
| 1171 | usb_kill_anchored_urbs(&data->isoc_anchor); |
| 1172 | } |
| 1173 | |
| 1174 | static int btmtk_usb_close(struct hci_dev *hdev) |
| 1175 | { |
| 1176 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 1177 | int err; |
| 1178 | |
| 1179 | BT_DBG("%s\n", __func__); |
| 1180 | |
| 1181 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
| 1182 | return 0; |
| 1183 | |
| 1184 | cancel_work_sync(&data->work); |
| 1185 | cancel_work_sync(&data->waker); |
| 1186 | |
| 1187 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| 1188 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
| 1189 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
| 1190 | |
| 1191 | btmtk_usb_stop_traffic(data); |
| 1192 | |
| 1193 | err = usb_autopm_get_interface(data->intf); |
| 1194 | if (err < 0) |
| 1195 | goto failed; |
| 1196 | |
| 1197 | data->intf->needs_remote_wakeup = 0; |
| 1198 | usb_autopm_put_interface(data->intf); |
| 1199 | |
| 1200 | failed: |
| 1201 | usb_scuttle_anchored_urbs(&data->deferred); |
| 1202 | return 0; |
| 1203 | } |
| 1204 | |
| 1205 | static int btmtk_usb_flush(struct hci_dev *hdev) |
| 1206 | { |
| 1207 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 1208 | |
| 1209 | BT_DBG("%s\n", __func__); |
| 1210 | |
| 1211 | usb_kill_anchored_urbs(&data->tx_anchor); |
| 1212 | |
| 1213 | return 0; |
| 1214 | } |
| 1215 | |
| 1216 | static void btmtk_usb_tx_complete(struct urb *urb) |
| 1217 | { |
| 1218 | struct sk_buff *skb = urb->context; |
| 1219 | struct hci_dev *hdev = (struct hci_dev *)skb->dev; |
| 1220 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 1221 | |
| 1222 | BT_DBG("%s: %s urb %p status %d count %d\n", __func__, hdev->name, |
| 1223 | urb, urb->status, urb->actual_length); |
| 1224 | |
| 1225 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| 1226 | goto done; |
| 1227 | |
| 1228 | if (!urb->status) |
| 1229 | hdev->stat.byte_tx += urb->transfer_buffer_length; |
| 1230 | else |
| 1231 | hdev->stat.err_tx++; |
| 1232 | |
| 1233 | done: |
| 1234 | spin_lock(&data->txlock); |
| 1235 | data->tx_in_flight--; |
| 1236 | spin_unlock(&data->txlock); |
| 1237 | |
| 1238 | kfree(urb->setup_packet); |
| 1239 | |
| 1240 | kfree_skb(skb); |
| 1241 | } |
| 1242 | |
| 1243 | static void btmtk_usb_isoc_tx_complete(struct urb *urb) |
| 1244 | { |
| 1245 | struct sk_buff *skb = urb->context; |
| 1246 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
| 1247 | |
| 1248 | BT_DBG("%s: %s urb %p status %d count %d", __func__, hdev->name, |
| 1249 | urb, urb->status, urb->actual_length); |
| 1250 | |
| 1251 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| 1252 | goto done; |
| 1253 | |
| 1254 | if (!urb->status) |
| 1255 | hdev->stat.byte_tx += urb->transfer_buffer_length; |
| 1256 | else |
| 1257 | hdev->stat.err_tx++; |
| 1258 | |
| 1259 | done: |
| 1260 | kfree(urb->setup_packet); |
| 1261 | |
| 1262 | kfree_skb(skb); |
| 1263 | } |
| 1264 | |
| 1265 | static int btmtk_usb_send_frame(struct sk_buff *skb) |
| 1266 | { |
| 1267 | struct hci_dev *hdev = (struct hci_dev *)skb->dev; |
| 1268 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 1269 | struct usb_ctrlrequest *dr; |
| 1270 | struct urb *urb; |
| 1271 | unsigned int pipe; |
| 1272 | int err; |
| 1273 | |
| 1274 | BT_DBG("%s\n", __func__); |
| 1275 | |
| 1276 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| 1277 | return -EBUSY; |
| 1278 | |
| 1279 | switch (bt_cb(skb)->pkt_type) { |
| 1280 | case HCI_COMMAND_PKT: |
| 1281 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 1282 | if (!urb) |
| 1283 | return -ENOMEM; |
| 1284 | |
| 1285 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); |
| 1286 | if (!dr) { |
| 1287 | usb_free_urb(urb); |
| 1288 | return -ENOMEM; |
| 1289 | } |
| 1290 | |
| 1291 | dr->bRequestType = data->cmdreq_type; |
| 1292 | dr->bRequest = 0; |
| 1293 | dr->wIndex = 0; |
| 1294 | dr->wValue = 0; |
| 1295 | dr->wLength = __cpu_to_le16(skb->len); |
| 1296 | |
| 1297 | pipe = usb_sndctrlpipe(data->udev, 0x00); |
| 1298 | |
| 1299 | if (test_bit(HCI_RUNNING, &hdev->flags)) { |
| 1300 | u16 op_code; |
| 1301 | memcpy(&op_code, skb->data, 2); |
| 1302 | BT_DBG("ogf = %x\n", (op_code & 0xfc00) >> 10); |
| 1303 | BT_DBG("ocf = %x\n", op_code & 0x03ff); |
| 1304 | hex_dump("hci command", skb->data, skb->len); |
| 1305 | |
| 1306 | } |
| 1307 | |
| 1308 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, |
| 1309 | skb->data, skb->len, btmtk_usb_tx_complete, skb); |
| 1310 | |
| 1311 | hdev->stat.cmd_tx++; |
| 1312 | break; |
| 1313 | |
| 1314 | case HCI_ACLDATA_PKT: |
| 1315 | if (!data->bulk_tx_ep) |
| 1316 | return -ENODEV; |
| 1317 | |
| 1318 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 1319 | if (!urb) |
| 1320 | return -ENOMEM; |
| 1321 | |
| 1322 | pipe = usb_sndbulkpipe(data->udev, |
| 1323 | data->bulk_tx_ep->bEndpointAddress); |
| 1324 | |
| 1325 | usb_fill_bulk_urb(urb, data->udev, pipe, |
| 1326 | skb->data, skb->len, btmtk_usb_tx_complete, skb); |
| 1327 | |
| 1328 | hdev->stat.acl_tx++; |
| 1329 | BT_DBG("HCI_ACLDATA_PKT:\n"); |
| 1330 | break; |
| 1331 | |
| 1332 | case HCI_SCODATA_PKT: |
| 1333 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
| 1334 | return -ENODEV; |
| 1335 | |
| 1336 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); |
| 1337 | if (!urb) |
| 1338 | return -ENOMEM; |
| 1339 | |
| 1340 | pipe = usb_sndisocpipe(data->udev, |
| 1341 | data->isoc_tx_ep->bEndpointAddress); |
| 1342 | |
| 1343 | usb_fill_int_urb(urb, data->udev, pipe, |
| 1344 | skb->data, skb->len, btmtk_usb_isoc_tx_complete, |
| 1345 | skb, data->isoc_tx_ep->bInterval); |
| 1346 | |
| 1347 | urb->transfer_flags = URB_ISO_ASAP; |
| 1348 | |
| 1349 | __fill_isoc_descriptor(urb, skb->len, |
| 1350 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); |
| 1351 | |
| 1352 | hdev->stat.sco_tx++; |
| 1353 | BT_DBG("HCI_SCODATA_PKT:\n"); |
| 1354 | goto skip_waking; |
| 1355 | |
| 1356 | default: |
| 1357 | return -EILSEQ; |
| 1358 | } |
| 1359 | |
| 1360 | err = inc_tx(data); |
| 1361 | |
| 1362 | if (err) { |
| 1363 | usb_anchor_urb(urb, &data->deferred); |
| 1364 | schedule_work(&data->waker); |
| 1365 | err = 0; |
| 1366 | goto done; |
| 1367 | } |
| 1368 | |
| 1369 | skip_waking: |
| 1370 | usb_anchor_urb(urb, &data->tx_anchor); |
| 1371 | |
| 1372 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 1373 | if (err < 0) { |
| 1374 | if (err != -EPERM && err != -ENODEV) |
| 1375 | BT_ERR("%s urb %p submission failed (%d)", |
| 1376 | hdev->name, urb, -err); |
| 1377 | kfree(urb->setup_packet); |
| 1378 | usb_unanchor_urb(urb); |
| 1379 | } else { |
| 1380 | usb_mark_last_busy(data->udev); |
| 1381 | } |
| 1382 | |
| 1383 | done: |
| 1384 | usb_free_urb(urb); |
| 1385 | return err; |
| 1386 | } |
| 1387 | |
| 1388 | static void btmtk_usb_notify(struct hci_dev *hdev, unsigned int evt) |
| 1389 | { |
| 1390 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 1391 | |
| 1392 | BT_DBG("%s evt %d", hdev->name, evt); |
| 1393 | |
| 1394 | if (hdev->conn_hash.sco_num != data->sco_num) { |
| 1395 | data->sco_num = hdev->conn_hash.sco_num; |
| 1396 | schedule_work(&data->work); |
| 1397 | } |
| 1398 | } |
| 1399 | |
| 1400 | static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
| 1401 | { |
| 1402 | struct btmtk_usb_data *data = hci_get_drvdata(hdev); |
| 1403 | struct usb_interface *intf = data->isoc; |
| 1404 | struct usb_endpoint_descriptor *ep_desc; |
| 1405 | int i, err; |
| 1406 | |
| 1407 | if (!data->isoc) |
| 1408 | return -ENODEV; |
| 1409 | |
| 1410 | err = usb_set_interface(data->udev, 1, altsetting); |
| 1411 | if (err < 0) { |
| 1412 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); |
| 1413 | return err; |
| 1414 | } |
| 1415 | |
| 1416 | data->isoc_altsetting = altsetting; |
| 1417 | |
| 1418 | data->isoc_tx_ep = NULL; |
| 1419 | data->isoc_rx_ep = NULL; |
| 1420 | |
| 1421 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { |
| 1422 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; |
| 1423 | |
| 1424 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { |
| 1425 | data->isoc_tx_ep = ep_desc; |
| 1426 | continue; |
| 1427 | } |
| 1428 | |
| 1429 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { |
| 1430 | data->isoc_rx_ep = ep_desc; |
| 1431 | continue; |
| 1432 | } |
| 1433 | } |
| 1434 | |
| 1435 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { |
| 1436 | BT_ERR("%s invalid SCO descriptors", hdev->name); |
| 1437 | return -ENODEV; |
| 1438 | } |
| 1439 | |
| 1440 | return 0; |
| 1441 | } |
| 1442 | |
| 1443 | static void btmtk_usb_work(struct work_struct *work) |
| 1444 | { |
| 1445 | struct btmtk_usb_data *data = container_of(work, struct btmtk_usb_data, work); |
| 1446 | struct hci_dev *hdev = data->hdev; |
| 1447 | int new_alts; |
| 1448 | int err; |
| 1449 | |
| 1450 | BT_DBG("%s\n", __func__); |
| 1451 | |
| 1452 | if (hdev->conn_hash.sco_num > 0) { |
| 1453 | if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
| 1454 | err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); |
| 1455 | if (err < 0) { |
| 1456 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| 1457 | usb_kill_anchored_urbs(&data->isoc_anchor); |
| 1458 | return; |
| 1459 | } |
| 1460 | |
| 1461 | set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
| 1462 | } |
| 1463 | |
| 1464 | if (hdev->voice_setting & 0x0020) { |
| 1465 | static const int alts[3] = { 2, 4, 5 }; |
| 1466 | new_alts = alts[hdev->conn_hash.sco_num - 1]; |
| 1467 | } else { |
| 1468 | new_alts = hdev->conn_hash.sco_num; |
| 1469 | } |
| 1470 | |
| 1471 | if (data->isoc_altsetting != new_alts) { |
| 1472 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| 1473 | usb_kill_anchored_urbs(&data->isoc_anchor); |
| 1474 | |
| 1475 | if (__set_isoc_interface(hdev, new_alts) < 0) |
| 1476 | return; |
| 1477 | } |
| 1478 | |
| 1479 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { |
| 1480 | if (btmtk_usb_submit_isoc_in_urb(hdev, GFP_KERNEL) < 0) |
| 1481 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| 1482 | else |
| 1483 | btmtk_usb_submit_isoc_in_urb(hdev, GFP_KERNEL); |
| 1484 | } |
| 1485 | } else { |
| 1486 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| 1487 | usb_kill_anchored_urbs(&data->isoc_anchor); |
| 1488 | |
| 1489 | __set_isoc_interface(hdev, 0); |
| 1490 | |
| 1491 | if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
| 1492 | usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); |
| 1493 | } |
| 1494 | } |
| 1495 | |
| 1496 | static void btmtk_usb_waker(struct work_struct *work) |
| 1497 | { |
| 1498 | struct btmtk_usb_data *data = container_of(work, struct btmtk_usb_data, waker); |
| 1499 | int err; |
| 1500 | |
| 1501 | err = usb_autopm_get_interface(data->intf); |
| 1502 | |
| 1503 | if (err < 0) |
| 1504 | return; |
| 1505 | |
| 1506 | usb_autopm_put_interface(data->intf); |
| 1507 | } |
| 1508 | |
| 1509 | static int btmtk_usb_probe(struct usb_interface *intf, |
| 1510 | const struct usb_device_id *id) |
| 1511 | { |
| 1512 | struct btmtk_usb_data *data; |
| 1513 | struct usb_endpoint_descriptor *ep_desc; |
| 1514 | int i, err; |
| 1515 | struct hci_dev *hdev; |
| 1516 | |
| 1517 | /* interface numbers are hardcoded in the spec */ |
| 1518 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
| 1519 | return -ENODEV; |
| 1520 | |
| 1521 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
| 1522 | |
| 1523 | if (!data) |
| 1524 | return -ENOMEM; |
| 1525 | |
| 1526 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { |
| 1527 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; |
| 1528 | |
| 1529 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { |
| 1530 | data->intr_ep = ep_desc; |
| 1531 | continue; |
| 1532 | } |
| 1533 | |
| 1534 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { |
| 1535 | data->bulk_tx_ep = ep_desc; |
| 1536 | continue; |
| 1537 | } |
| 1538 | |
| 1539 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { |
| 1540 | data->bulk_rx_ep = ep_desc; |
| 1541 | continue; |
| 1542 | } |
| 1543 | } |
| 1544 | |
| 1545 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { |
| 1546 | kfree(data); |
| 1547 | return -ENODEV; |
| 1548 | } |
| 1549 | |
| 1550 | data->cmdreq_type = USB_TYPE_CLASS; |
| 1551 | |
| 1552 | data->udev = interface_to_usbdev(intf); |
| 1553 | data->intf = intf; |
| 1554 | |
| 1555 | spin_lock_init(&data->lock); |
| 1556 | INIT_WORK(&data->work, btmtk_usb_work); |
| 1557 | INIT_WORK(&data->waker, btmtk_usb_waker); |
| 1558 | spin_lock_init(&data->txlock); |
| 1559 | |
| 1560 | init_usb_anchor(&data->tx_anchor); |
| 1561 | init_usb_anchor(&data->intr_anchor); |
| 1562 | init_usb_anchor(&data->bulk_anchor); |
| 1563 | init_usb_anchor(&data->isoc_anchor); |
| 1564 | init_usb_anchor(&data->deferred); |
| 1565 | |
| 1566 | hdev = hci_alloc_dev(); |
| 1567 | if (!hdev) { |
| 1568 | kfree(data); |
| 1569 | return -ENOMEM; |
| 1570 | } |
| 1571 | |
| 1572 | hdev->bus = HCI_USB; |
| 1573 | |
| 1574 | hci_set_drvdata(hdev, data); |
| 1575 | |
| 1576 | data->hdev = hdev; |
| 1577 | |
| 1578 | SET_HCIDEV_DEV(hdev, &intf->dev); |
| 1579 | |
| 1580 | hdev->open = btmtk_usb_open; |
| 1581 | hdev->close = btmtk_usb_close; |
| 1582 | hdev->flush = btmtk_usb_flush; |
| 1583 | hdev->send = btmtk_usb_send_frame; |
| 1584 | hdev->notify = btmtk_usb_notify; |
| 1585 | |
| 1586 | /* Interface numbers are hardcoded in the specification */ |
| 1587 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
| 1588 | |
| 1589 | if (data->isoc) { |
| 1590 | err = usb_driver_claim_interface(&btmtk_usb_driver, |
| 1591 | data->isoc, data); |
| 1592 | if (err < 0) { |
| 1593 | hci_free_dev(hdev); |
| 1594 | kfree(data); |
| 1595 | return err; |
| 1596 | } |
| 1597 | } |
| 1598 | |
Devendra Naga | 51dd7d2 | 2013-06-02 22:25:26 +0530 | [diff] [blame] | 1599 | data->io_buf = kmalloc(256, GFP_KERNEL); |
Devendra Naga | cff2ae2 | 2013-05-25 23:04:16 -0400 | [diff] [blame] | 1600 | if (!data->io_buf) { |
| 1601 | hci_free_dev(hdev); |
| 1602 | kfree(data); |
| 1603 | return -ENOMEM; |
| 1604 | } |
Cho, Yu-Chen | 0d751ec | 2013-05-16 16:31:59 +0800 | [diff] [blame] | 1605 | |
| 1606 | btmtk_usb_switch_iobase(data, WLAN); |
| 1607 | |
| 1608 | btmtk_usb_cap_init(data); |
| 1609 | |
| 1610 | err = hci_register_dev(hdev); |
| 1611 | if (err < 0) { |
| 1612 | hci_free_dev(hdev); |
| 1613 | kfree(data); |
| 1614 | return err; |
| 1615 | } |
| 1616 | |
| 1617 | usb_set_intfdata(intf, data); |
| 1618 | |
| 1619 | return 0; |
| 1620 | } |
| 1621 | |
| 1622 | static void btmtk_usb_disconnect(struct usb_interface *intf) |
| 1623 | { |
| 1624 | struct btmtk_usb_data *data = usb_get_intfdata(intf); |
| 1625 | struct hci_dev *hdev; |
| 1626 | |
| 1627 | BT_DBG("%s\n", __func__); |
| 1628 | |
| 1629 | if (!data) |
| 1630 | return; |
| 1631 | |
| 1632 | hdev = data->hdev; |
| 1633 | usb_set_intfdata(data->intf, NULL); |
| 1634 | |
| 1635 | if (data->isoc) |
| 1636 | usb_set_intfdata(data->isoc, NULL); |
| 1637 | |
| 1638 | hci_unregister_dev(hdev); |
| 1639 | |
| 1640 | if (intf == data->isoc) |
| 1641 | usb_driver_release_interface(&btmtk_usb_driver, data->intf); |
| 1642 | else if (data->isoc) |
| 1643 | usb_driver_release_interface(&btmtk_usb_driver, data->isoc); |
| 1644 | |
| 1645 | hci_free_dev(hdev); |
| 1646 | |
| 1647 | kfree(data->io_buf); |
| 1648 | |
| 1649 | kfree(data); |
| 1650 | } |
| 1651 | |
| 1652 | #ifdef CONFIG_PM |
| 1653 | static int btmtk_usb_suspend(struct usb_interface *intf, pm_message_t message) |
| 1654 | { |
| 1655 | struct btmtk_usb_data *data = usb_get_intfdata(intf); |
| 1656 | |
| 1657 | BT_DBG("%s\n", __func__); |
| 1658 | |
| 1659 | if (data->suspend_count++) |
| 1660 | return 0; |
| 1661 | |
| 1662 | spin_lock_irq(&data->txlock); |
| 1663 | if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { |
| 1664 | set_bit(BTUSB_SUSPENDING, &data->flags); |
| 1665 | spin_unlock_irq(&data->txlock); |
| 1666 | } else { |
| 1667 | spin_unlock_irq(&data->txlock); |
| 1668 | data->suspend_count--; |
| 1669 | return -EBUSY; |
| 1670 | } |
| 1671 | |
| 1672 | cancel_work_sync(&data->work); |
| 1673 | |
| 1674 | btmtk_usb_stop_traffic(data); |
| 1675 | usb_kill_anchored_urbs(&data->tx_anchor); |
| 1676 | |
| 1677 | return 0; |
| 1678 | } |
| 1679 | |
| 1680 | static void play_deferred(struct btmtk_usb_data *data) |
| 1681 | { |
| 1682 | struct urb *urb; |
| 1683 | int err; |
| 1684 | |
| 1685 | while ((urb = usb_get_from_anchor(&data->deferred))) { |
| 1686 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 1687 | if (err < 0) |
| 1688 | break; |
| 1689 | |
| 1690 | data->tx_in_flight++; |
| 1691 | } |
| 1692 | |
| 1693 | usb_scuttle_anchored_urbs(&data->deferred); |
| 1694 | } |
| 1695 | |
| 1696 | static int btmtk_usb_resume(struct usb_interface *intf) |
| 1697 | { |
| 1698 | struct btmtk_usb_data *data = usb_get_intfdata(intf); |
| 1699 | struct hci_dev *hdev = data->hdev; |
| 1700 | int err = 0; |
| 1701 | |
| 1702 | BT_DBG("%s\n", __func__); |
| 1703 | |
| 1704 | if (--data->suspend_count) |
| 1705 | return 0; |
| 1706 | |
| 1707 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| 1708 | goto done; |
| 1709 | |
| 1710 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { |
| 1711 | err = btmtk_usb_submit_intr_urb(hdev, GFP_NOIO); |
| 1712 | if (err < 0) { |
| 1713 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
| 1714 | goto failed; |
| 1715 | } |
| 1716 | } |
| 1717 | |
| 1718 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { |
| 1719 | err = btmtk_usb_submit_bulk_in_urb(hdev, GFP_NOIO); |
| 1720 | if (err < 0) { |
| 1721 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
| 1722 | goto failed; |
| 1723 | } |
| 1724 | |
| 1725 | btmtk_usb_submit_bulk_in_urb(hdev, GFP_NOIO); |
| 1726 | } |
| 1727 | |
| 1728 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { |
| 1729 | if (btmtk_usb_submit_isoc_in_urb(hdev, GFP_NOIO) < 0) |
| 1730 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| 1731 | else |
| 1732 | btmtk_usb_submit_isoc_in_urb(hdev, GFP_NOIO); |
| 1733 | } |
| 1734 | |
| 1735 | spin_lock_irq(&data->txlock); |
| 1736 | play_deferred(data); |
| 1737 | clear_bit(BTUSB_SUSPENDING, &data->flags); |
| 1738 | spin_unlock_irq(&data->txlock); |
| 1739 | schedule_work(&data->work); |
| 1740 | |
| 1741 | return 0; |
| 1742 | |
| 1743 | failed: |
| 1744 | usb_scuttle_anchored_urbs(&data->deferred); |
| 1745 | done: |
| 1746 | spin_lock_irq(&data->txlock); |
| 1747 | clear_bit(BTUSB_SUSPENDING, &data->flags); |
| 1748 | spin_unlock_irq(&data->txlock); |
| 1749 | |
| 1750 | return err; |
| 1751 | } |
| 1752 | #endif |
| 1753 | |
| 1754 | static struct usb_device_id btmtk_usb_table[] = { |
| 1755 | /* Mediatek MT7650 */ |
| 1756 | { USB_DEVICE(0x0e8d, 0x7650) }, |
| 1757 | { USB_DEVICE(0x0e8d, 0x7630) }, |
| 1758 | { USB_DEVICE(0x0e8d, 0x763e) }, |
| 1759 | /* Mediatek MT662 */ |
| 1760 | { USB_DEVICE(0x0e8d, 0x7662) }, |
| 1761 | { USB_DEVICE(0x0e8d, 0x7632) }, |
| 1762 | { } /* Terminating entry */ |
| 1763 | }; |
| 1764 | |
| 1765 | static struct usb_driver btmtk_usb_driver = { |
| 1766 | .name = "btmtk_usb", |
| 1767 | .probe = btmtk_usb_probe, |
| 1768 | .disconnect = btmtk_usb_disconnect, |
| 1769 | #ifdef CONFIG_PM |
| 1770 | .suspend = btmtk_usb_suspend, |
| 1771 | .resume = btmtk_usb_resume, |
| 1772 | #endif |
| 1773 | .id_table = btmtk_usb_table, |
| 1774 | .supports_autosuspend = 1, |
| 1775 | .disable_hub_initiated_lpm = 1, |
| 1776 | }; |
| 1777 | |
Peter Huewe | e516658 | 2013-05-17 23:51:57 +0200 | [diff] [blame] | 1778 | module_usb_driver(btmtk_usb_driver); |
Cho, Yu-Chen | 0d751ec | 2013-05-16 16:31:59 +0800 | [diff] [blame] | 1779 | |
| 1780 | MODULE_DESCRIPTION("Mediatek Bluetooth USB driver ver " VERSION); |
| 1781 | MODULE_VERSION(VERSION); |
| 1782 | MODULE_LICENSE("GPL"); |
| 1783 | MODULE_FIRMWARE(MT7650_FIRMWARE); |
| 1784 | MODULE_FIRMWARE(MT7662_FIRMWARE); |