1 /****************************************************************************** 2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. 3 * Linux device driver for RTL8192U 4 * 5 * Based on the r8187 driver, which is: 6 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al. 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of version 2 of the GNU General Public License as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 * You should have received a copy of the GNU General Public License along with 17 * this program; if not, write to the Free Software Foundation, Inc., 18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA 19 * 20 * The full GNU General Public License is included in this distribution in the 21 * file called LICENSE. 22 * 23 * Contact Information: 24 * Jerry chuang <wlanfae@realtek.com> 25 */ 26 27 #ifndef CONFIG_FORCE_HARD_FLOAT 28 double __floatsidf(int i) 29 { 30 return i; 31 } 32 33 unsigned int __fixunsdfsi(double d) 34 { 35 return d; 36 } 37 38 double __adddf3(double a, double b) 39 { 40 return a + b; 41 } 42 43 double __addsf3(float a, float b) 44 { 45 return a + b; 46 } 47 48 double __subdf3(double a, double b) 49 { 50 return a - b; 51 } 52 53 double __extendsfdf2(float a) 54 { 55 return a; 56 } 57 #endif 58 59 #define CONFIG_RTL8192_IO_MAP 60 61 #include <linux/uaccess.h> 62 #include "r8192U_hw.h" 63 #include "r8192U.h" 64 #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */ 65 #include "r8180_93cx6.h" /* Card EEPROM */ 66 #include "r8192U_wx.h" 67 #include "r819xU_phy.h" 68 #include "r819xU_phyreg.h" 69 #include "r819xU_cmdpkt.h" 70 #include "r8192U_dm.h" 71 #include <linux/usb.h> 72 #include <linux/slab.h> 73 #include <linux/proc_fs.h> 74 #include <linux/seq_file.h> 75 /* FIXME: check if 2.6.7 is ok */ 76 77 #include "dot11d.h" 78 /* set here to open your trace code. */ 79 u32 rt_global_debug_component = COMP_DOWN | 80 COMP_SEC | 81 COMP_ERR; /* always open err flags on */ 82 83 #define TOTAL_CAM_ENTRY 32 84 #define CAM_CONTENT_COUNT 8 85 86 static const struct usb_device_id rtl8192_usb_id_tbl[] = { 87 /* Realtek */ 88 {USB_DEVICE(0x0bda, 0x8709)}, 89 /* Corega */ 90 {USB_DEVICE(0x07aa, 0x0043)}, 91 /* Belkin */ 92 {USB_DEVICE(0x050d, 0x805E)}, 93 /* Sitecom */ 94 {USB_DEVICE(0x0df6, 0x0031)}, 95 /* EnGenius */ 96 {USB_DEVICE(0x1740, 0x9201)}, 97 /* Dlink */ 98 {USB_DEVICE(0x2001, 0x3301)}, 99 /* Zinwell */ 100 {USB_DEVICE(0x5a57, 0x0290)}, 101 /* LG */ 102 {USB_DEVICE(0x043e, 0x7a01)}, 103 {} 104 }; 105 106 MODULE_LICENSE("GPL"); 107 MODULE_VERSION("V 1.1"); 108 MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl); 109 MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards"); 110 111 static char *ifname = "wlan%d"; 112 static int hwwep = 1; /* default use hw. set 0 to use software security */ 113 static int channels = 0x3fff; 114 115 116 117 module_param(ifname, charp, 0644); 118 module_param(hwwep, int, 0644); 119 module_param(channels, int, 0644); 120 121 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); 122 MODULE_PARM_DESC(hwwep, " Try to use hardware security support. "); 123 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI"); 124 125 static int rtl8192_usb_probe(struct usb_interface *intf, 126 const struct usb_device_id *id); 127 static void rtl8192_usb_disconnect(struct usb_interface *intf); 128 129 130 static struct usb_driver rtl8192_usb_driver = { 131 .name = RTL819xU_MODULE_NAME, /* Driver name */ 132 .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */ 133 .probe = rtl8192_usb_probe, /* probe fn */ 134 .disconnect = rtl8192_usb_disconnect, /* remove fn */ 135 .suspend = NULL, /* PM suspend fn */ 136 .resume = NULL, /* PM resume fn */ 137 }; 138 139 140 struct CHANNEL_LIST { 141 u8 Channel[32]; 142 u8 Len; 143 }; 144 145 static struct CHANNEL_LIST ChannelPlan[] = { 146 /* FCC */ 147 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165}, 24}, 148 /* IC */ 149 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11}, 150 /* ETSI */ 151 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21}, 152 /* Spain. Change to ETSI. */ 153 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, 154 /* France. Change to ETSI. */ 155 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, 156 /* MKK */ 157 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 158 /* MKK1 */ 159 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 160 /* Israel. */ 161 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, 162 /* For 11a , TELEC */ 163 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 164 /* MIC */ 165 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 166 /* For Global Domain. 1-11:active scan, 12-14 passive scan. */ 167 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14} 168 }; 169 170 static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv) 171 { 172 int i, max_chan = -1, min_chan = -1; 173 struct ieee80211_device *ieee = priv->ieee80211; 174 175 switch (channel_plan) { 176 case COUNTRY_CODE_FCC: 177 case COUNTRY_CODE_IC: 178 case COUNTRY_CODE_ETSI: 179 case COUNTRY_CODE_SPAIN: 180 case COUNTRY_CODE_FRANCE: 181 case COUNTRY_CODE_MKK: 182 case COUNTRY_CODE_MKK1: 183 case COUNTRY_CODE_ISRAEL: 184 case COUNTRY_CODE_TELEC: 185 case COUNTRY_CODE_MIC: 186 Dot11d_Init(ieee); 187 ieee->bGlobalDomain = false; 188 /* actually 8225 & 8256 rf chips only support B,G,24N mode */ 189 if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) { 190 min_chan = 1; 191 max_chan = 14; 192 } else { 193 RT_TRACE(COMP_ERR, 194 "unknown rf chip, can't set channel map in function:%s()\n", 195 __func__); 196 } 197 if (ChannelPlan[channel_plan].Len != 0) { 198 /* Clear old channel map */ 199 memset(GET_DOT11D_INFO(ieee)->channel_map, 0, 200 sizeof(GET_DOT11D_INFO(ieee)->channel_map)); 201 /* Set new channel map */ 202 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) { 203 if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan) 204 break; 205 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1; 206 } 207 } 208 break; 209 210 case COUNTRY_CODE_GLOBAL_DOMAIN: 211 /* this flag enabled to follow 11d country IE setting, 212 * otherwise, it shall follow global domain settings. 213 */ 214 GET_DOT11D_INFO(ieee)->bEnabled = 0; 215 Dot11d_Reset(ieee); 216 ieee->bGlobalDomain = true; 217 break; 218 219 default: 220 break; 221 } 222 } 223 224 225 226 227 static void CamResetAllEntry(struct net_device *dev) 228 { 229 u32 ulcommand = 0; 230 /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA 231 * associate to AP. However, ResetKey is called on 232 * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this 233 * condition, Cam can not be reset because upper layer will not set 234 * this static key again. 235 */ 236 ulcommand |= BIT(31) | BIT(30); 237 write_nic_dword(dev, RWCAM, ulcommand); 238 } 239 240 241 void write_cam(struct net_device *dev, u8 addr, u32 data) 242 { 243 write_nic_dword(dev, WCAMI, data); 244 write_nic_dword(dev, RWCAM, BIT(31) | BIT(16) | (addr & 0xff)); 245 } 246 247 u32 read_cam(struct net_device *dev, u8 addr) 248 { 249 u32 data; 250 251 write_nic_dword(dev, RWCAM, 0x80000000 | (addr & 0xff)); 252 read_nic_dword(dev, 0xa8, &data); 253 return data; 254 } 255 256 int write_nic_byte_E(struct net_device *dev, int indx, u8 data) 257 { 258 int status; 259 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 260 struct usb_device *udev = priv->udev; 261 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 262 263 if (!usbdata) 264 return -ENOMEM; 265 *usbdata = data; 266 267 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 268 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 269 indx | 0xfe00, 0, usbdata, 1, HZ / 2); 270 kfree(usbdata); 271 272 if (status < 0) { 273 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 274 return status; 275 } 276 return 0; 277 } 278 279 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data) 280 { 281 int status; 282 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 283 struct usb_device *udev = priv->udev; 284 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); 285 286 if (!usbdata) 287 return -ENOMEM; 288 289 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 290 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 291 indx | 0xfe00, 0, usbdata, 1, HZ / 2); 292 *data = *usbdata; 293 kfree(usbdata); 294 295 if (status < 0) { 296 netdev_err(dev, "%s failure status: %d\n", __func__, status); 297 return status; 298 } 299 300 return 0; 301 } 302 303 /* as 92U has extend page from 4 to 16, so modify functions below. */ 304 int write_nic_byte(struct net_device *dev, int indx, u8 data) 305 { 306 int status; 307 308 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 309 struct usb_device *udev = priv->udev; 310 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 311 312 if (!usbdata) 313 return -ENOMEM; 314 *usbdata = data; 315 316 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 317 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 318 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 319 usbdata, 1, HZ / 2); 320 kfree(usbdata); 321 322 if (status < 0) { 323 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 324 return status; 325 } 326 327 return 0; 328 } 329 330 331 int write_nic_word(struct net_device *dev, int indx, u16 data) 332 { 333 int status; 334 335 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 336 struct usb_device *udev = priv->udev; 337 u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 338 339 if (!usbdata) 340 return -ENOMEM; 341 *usbdata = data; 342 343 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 344 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 345 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 346 usbdata, 2, HZ / 2); 347 kfree(usbdata); 348 349 if (status < 0) { 350 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 351 return status; 352 } 353 354 return 0; 355 } 356 357 358 int write_nic_dword(struct net_device *dev, int indx, u32 data) 359 { 360 int status; 361 362 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 363 struct usb_device *udev = priv->udev; 364 u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 365 366 if (!usbdata) 367 return -ENOMEM; 368 *usbdata = data; 369 370 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 371 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 372 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 373 usbdata, 4, HZ / 2); 374 kfree(usbdata); 375 376 377 if (status < 0) { 378 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 379 return status; 380 } 381 382 return 0; 383 } 384 385 386 387 int read_nic_byte(struct net_device *dev, int indx, u8 *data) 388 { 389 int status; 390 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 391 struct usb_device *udev = priv->udev; 392 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); 393 394 if (!usbdata) 395 return -ENOMEM; 396 397 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 398 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 399 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 400 usbdata, 1, HZ / 2); 401 *data = *usbdata; 402 kfree(usbdata); 403 404 if (status < 0) { 405 netdev_err(dev, "%s failure status: %d\n", __func__, status); 406 return status; 407 } 408 409 return 0; 410 } 411 412 413 414 int read_nic_word(struct net_device *dev, int indx, u16 *data) 415 { 416 int status; 417 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 418 struct usb_device *udev = priv->udev; 419 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); 420 421 if (!usbdata) 422 return -ENOMEM; 423 424 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 425 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 426 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 427 usbdata, 2, HZ / 2); 428 *data = *usbdata; 429 kfree(usbdata); 430 431 if (status < 0) { 432 netdev_err(dev, "%s failure status: %d\n", __func__, status); 433 return status; 434 } 435 436 return 0; 437 } 438 439 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data) 440 { 441 int status; 442 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 443 struct usb_device *udev = priv->udev; 444 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); 445 446 if (!usbdata) 447 return -ENOMEM; 448 449 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 450 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 451 indx | 0xfe00, 0, usbdata, 2, HZ / 2); 452 *data = *usbdata; 453 kfree(usbdata); 454 455 if (status < 0) { 456 netdev_err(dev, "%s failure status: %d\n", __func__, status); 457 return status; 458 } 459 460 return 0; 461 } 462 463 int read_nic_dword(struct net_device *dev, int indx, u32 *data) 464 { 465 int status; 466 467 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 468 struct usb_device *udev = priv->udev; 469 u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL); 470 471 if (!usbdata) 472 return -ENOMEM; 473 474 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 475 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 476 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 477 usbdata, 4, HZ / 2); 478 *data = *usbdata; 479 kfree(usbdata); 480 481 if (status < 0) { 482 netdev_err(dev, "%s failure status: %d\n", __func__, status); 483 return status; 484 } 485 486 return 0; 487 } 488 489 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */ 490 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */ 491 /* this might still called in what was the PHY rtl8185/rtl8192 common code 492 * plans are to possibility turn it again in one common code... 493 */ 494 inline void force_pci_posting(struct net_device *dev) 495 { 496 } 497 498 static struct net_device_stats *rtl8192_stats(struct net_device *dev); 499 static void rtl8192_restart(struct work_struct *work); 500 static void watch_dog_timer_callback(struct timer_list *t); 501 502 /**************************************************************************** 503 * -----------------------------PROCFS STUFF------------------------- 504 ****************************************************************************/ 505 506 static struct proc_dir_entry *rtl8192_proc; 507 508 static int proc_get_stats_ap(struct seq_file *m, void *v) 509 { 510 struct net_device *dev = m->private; 511 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 512 struct ieee80211_device *ieee = priv->ieee80211; 513 struct ieee80211_network *target; 514 515 list_for_each_entry(target, &ieee->network_list, list) { 516 const char *wpa = "non_WPA"; 517 518 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0) 519 wpa = "WPA"; 520 521 seq_printf(m, "%s %s\n", target->ssid, wpa); 522 } 523 524 return 0; 525 } 526 527 static int proc_get_registers(struct seq_file *m, void *v) 528 { 529 struct net_device *dev = m->private; 530 int i, n, max = 0xff; 531 u8 byte_rd; 532 533 seq_puts(m, "\n####################page 0##################\n "); 534 535 for (n = 0; n <= max;) { 536 seq_printf(m, "\nD: %2x > ", n); 537 538 for (i = 0; i < 16 && n <= max; i++, n++) { 539 read_nic_byte(dev, 0x000 | n, &byte_rd); 540 seq_printf(m, "%2x ", byte_rd); 541 } 542 } 543 544 seq_puts(m, "\n####################page 1##################\n "); 545 for (n = 0; n <= max;) { 546 seq_printf(m, "\nD: %2x > ", n); 547 548 for (i = 0; i < 16 && n <= max; i++, n++) { 549 read_nic_byte(dev, 0x100 | n, &byte_rd); 550 seq_printf(m, "%2x ", byte_rd); 551 } 552 } 553 554 seq_puts(m, "\n####################page 3##################\n "); 555 for (n = 0; n <= max;) { 556 seq_printf(m, "\nD: %2x > ", n); 557 558 for (i = 0; i < 16 && n <= max; i++, n++) { 559 read_nic_byte(dev, 0x300 | n, &byte_rd); 560 seq_printf(m, "%2x ", byte_rd); 561 } 562 } 563 564 seq_putc(m, '\n'); 565 return 0; 566 } 567 568 static int proc_get_stats_tx(struct seq_file *m, void *v) 569 { 570 struct net_device *dev = m->private; 571 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 572 573 seq_printf(m, 574 "TX VI priority ok int: %lu\n" 575 "TX VI priority error int: %lu\n" 576 "TX VO priority ok int: %lu\n" 577 "TX VO priority error int: %lu\n" 578 "TX BE priority ok int: %lu\n" 579 "TX BE priority error int: %lu\n" 580 "TX BK priority ok int: %lu\n" 581 "TX BK priority error int: %lu\n" 582 "TX MANAGE priority ok int: %lu\n" 583 "TX MANAGE priority error int: %lu\n" 584 "TX BEACON priority ok int: %lu\n" 585 "TX BEACON priority error int: %lu\n" 586 "TX queue resume: %lu\n" 587 "TX queue stopped?: %d\n" 588 "TX fifo overflow: %lu\n" 589 "TX VI queue: %d\n" 590 "TX VO queue: %d\n" 591 "TX BE queue: %d\n" 592 "TX BK queue: %d\n" 593 "TX VI dropped: %lu\n" 594 "TX VO dropped: %lu\n" 595 "TX BE dropped: %lu\n" 596 "TX BK dropped: %lu\n" 597 "TX total data packets %lu\n", 598 priv->stats.txviokint, 599 priv->stats.txvierr, 600 priv->stats.txvookint, 601 priv->stats.txvoerr, 602 priv->stats.txbeokint, 603 priv->stats.txbeerr, 604 priv->stats.txbkokint, 605 priv->stats.txbkerr, 606 priv->stats.txmanageokint, 607 priv->stats.txmanageerr, 608 priv->stats.txbeaconokint, 609 priv->stats.txbeaconerr, 610 priv->stats.txresumed, 611 netif_queue_stopped(dev), 612 priv->stats.txoverflow, 613 atomic_read(&(priv->tx_pending[VI_PRIORITY])), 614 atomic_read(&(priv->tx_pending[VO_PRIORITY])), 615 atomic_read(&(priv->tx_pending[BE_PRIORITY])), 616 atomic_read(&(priv->tx_pending[BK_PRIORITY])), 617 priv->stats.txvidrop, 618 priv->stats.txvodrop, 619 priv->stats.txbedrop, 620 priv->stats.txbkdrop, 621 priv->stats.txdatapkt 622 ); 623 624 return 0; 625 } 626 627 static int proc_get_stats_rx(struct seq_file *m, void *v) 628 { 629 struct net_device *dev = m->private; 630 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 631 632 seq_printf(m, 633 "RX packets: %lu\n" 634 "RX urb status error: %lu\n" 635 "RX invalid urb error: %lu\n", 636 priv->stats.rxoktotal, 637 priv->stats.rxstaterr, 638 priv->stats.rxurberr); 639 640 return 0; 641 } 642 643 static void rtl8192_proc_module_init(void) 644 { 645 RT_TRACE(COMP_INIT, "Initializing proc filesystem"); 646 rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net); 647 } 648 649 /* 650 * seq_file wrappers for procfile show routines. 651 */ 652 static int rtl8192_proc_open(struct inode *inode, struct file *file) 653 { 654 struct net_device *dev = proc_get_parent_data(inode); 655 int (*show)(struct seq_file *, void *) = PDE_DATA(inode); 656 657 return single_open(file, show, dev); 658 } 659 660 static const struct file_operations rtl8192_proc_fops = { 661 .open = rtl8192_proc_open, 662 .read = seq_read, 663 .llseek = seq_lseek, 664 .release = single_release, 665 }; 666 667 /* 668 * Table of proc files we need to create. 669 */ 670 struct rtl8192_proc_file { 671 char name[12]; 672 int (*show)(struct seq_file *, void *); 673 }; 674 675 static const struct rtl8192_proc_file rtl8192_proc_files[] = { 676 { "stats-rx", &proc_get_stats_rx }, 677 { "stats-tx", &proc_get_stats_tx }, 678 { "stats-ap", &proc_get_stats_ap }, 679 { "registers", &proc_get_registers }, 680 { "" } 681 }; 682 683 static void rtl8192_proc_init_one(struct net_device *dev) 684 { 685 const struct rtl8192_proc_file *f; 686 struct proc_dir_entry *dir; 687 688 if (rtl8192_proc) { 689 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); 690 if (!dir) { 691 RT_TRACE(COMP_ERR, 692 "Unable to initialize /proc/net/rtl8192/%s\n", 693 dev->name); 694 return; 695 } 696 697 for (f = rtl8192_proc_files; f->name[0]; f++) { 698 if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir, 699 &rtl8192_proc_fops, f->show)) { 700 RT_TRACE(COMP_ERR, 701 "Unable to initialize /proc/net/rtl8192/%s/%s\n", 702 dev->name, f->name); 703 return; 704 } 705 } 706 } 707 } 708 709 static void rtl8192_proc_remove_one(struct net_device *dev) 710 { 711 remove_proc_subtree(dev->name, rtl8192_proc); 712 } 713 714 /**************************************************************************** 715 * -----------------------------MISC STUFF------------------------- 716 *****************************************************************************/ 717 718 short check_nic_enough_desc(struct net_device *dev, int queue_index) 719 { 720 struct r8192_priv *priv = ieee80211_priv(dev); 721 int used = atomic_read(&priv->tx_pending[queue_index]); 722 723 return (used < MAX_TX_URB); 724 } 725 726 static void tx_timeout(struct net_device *dev) 727 { 728 struct r8192_priv *priv = ieee80211_priv(dev); 729 730 schedule_work(&priv->reset_wq); 731 } 732 733 void rtl8192_update_msr(struct net_device *dev) 734 { 735 struct r8192_priv *priv = ieee80211_priv(dev); 736 u8 msr; 737 738 read_nic_byte(dev, MSR, &msr); 739 msr &= ~MSR_LINK_MASK; 740 741 /* do not change in link_state != WLAN_LINK_ASSOCIATED. 742 * msr must be updated if the state is ASSOCIATING. 743 * this is intentional and make sense for ad-hoc and 744 * master (see the create BSS/IBSS func) 745 */ 746 if (priv->ieee80211->state == IEEE80211_LINKED) { 747 if (priv->ieee80211->iw_mode == IW_MODE_INFRA) 748 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT); 749 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 750 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT); 751 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER) 752 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT); 753 754 } else { 755 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT); 756 } 757 758 write_nic_byte(dev, MSR, msr); 759 } 760 761 void rtl8192_set_chan(struct net_device *dev, short ch) 762 { 763 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 764 765 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch); 766 priv->chan = ch; 767 768 /* this hack should avoid frame TX during channel setting*/ 769 770 /* need to implement rf set channel here */ 771 772 if (priv->rf_set_chan) 773 priv->rf_set_chan(dev, priv->chan); 774 mdelay(10); 775 } 776 777 static void rtl8192_rx_isr(struct urb *urb); 778 779 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats) 780 { 781 return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize 782 + pstats->RxBufShift); 783 } 784 785 static int rtl8192_rx_initiate(struct net_device *dev) 786 { 787 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 788 struct urb *entry; 789 struct sk_buff *skb; 790 struct rtl8192_rx_info *info; 791 792 /* nomal packet rx procedure */ 793 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) { 794 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); 795 if (!skb) 796 break; 797 entry = usb_alloc_urb(0, GFP_KERNEL); 798 if (!entry) { 799 kfree_skb(skb); 800 break; 801 } 802 usb_fill_bulk_urb(entry, priv->udev, 803 usb_rcvbulkpipe(priv->udev, 3), 804 skb_tail_pointer(skb), 805 RX_URB_SIZE, rtl8192_rx_isr, skb); 806 info = (struct rtl8192_rx_info *)skb->cb; 807 info->urb = entry; 808 info->dev = dev; 809 info->out_pipe = 3; /* denote rx normal packet queue */ 810 skb_queue_tail(&priv->rx_queue, skb); 811 usb_submit_urb(entry, GFP_KERNEL); 812 } 813 814 /* command packet rx procedure */ 815 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) { 816 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); 817 if (!skb) 818 break; 819 entry = usb_alloc_urb(0, GFP_KERNEL); 820 if (!entry) { 821 kfree_skb(skb); 822 break; 823 } 824 usb_fill_bulk_urb(entry, priv->udev, 825 usb_rcvbulkpipe(priv->udev, 9), 826 skb_tail_pointer(skb), 827 RX_URB_SIZE, rtl8192_rx_isr, skb); 828 info = (struct rtl8192_rx_info *)skb->cb; 829 info->urb = entry; 830 info->dev = dev; 831 info->out_pipe = 9; /* denote rx cmd packet queue */ 832 skb_queue_tail(&priv->rx_queue, skb); 833 usb_submit_urb(entry, GFP_KERNEL); 834 } 835 836 return 0; 837 } 838 839 void rtl8192_set_rxconf(struct net_device *dev) 840 { 841 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 842 u32 rxconf; 843 844 read_nic_dword(dev, RCR, &rxconf); 845 rxconf = rxconf & ~MAC_FILTER_MASK; 846 rxconf = rxconf | RCR_AMF; 847 rxconf = rxconf | RCR_ADF; 848 rxconf = rxconf | RCR_AB; 849 rxconf = rxconf | RCR_AM; 850 851 if (dev->flags & IFF_PROMISC) 852 DMESG("NIC in promisc mode"); 853 854 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR || 855 dev->flags & IFF_PROMISC) { 856 rxconf = rxconf | RCR_AAP; 857 } else { 858 rxconf = rxconf | RCR_APM; 859 rxconf = rxconf | RCR_CBSSID; 860 } 861 862 863 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) { 864 rxconf = rxconf | RCR_AICV; 865 rxconf = rxconf | RCR_APWRMGT; 866 } 867 868 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR) 869 rxconf = rxconf | RCR_ACRC32; 870 871 872 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK; 873 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT); 874 rxconf = rxconf & ~MAX_RX_DMA_MASK; 875 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET); 876 877 rxconf = rxconf | RCR_ONLYERLPKT; 878 879 write_nic_dword(dev, RCR, rxconf); 880 } 881 882 /* wait to be removed */ 883 void rtl8192_rx_enable(struct net_device *dev) 884 { 885 rtl8192_rx_initiate(dev); 886 } 887 888 889 void rtl8192_tx_enable(struct net_device *dev) 890 { 891 } 892 893 894 895 void rtl8192_rtx_disable(struct net_device *dev) 896 { 897 u8 cmd; 898 struct r8192_priv *priv = ieee80211_priv(dev); 899 struct sk_buff *skb; 900 struct rtl8192_rx_info *info; 901 902 read_nic_byte(dev, CMDR, &cmd); 903 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE)); 904 force_pci_posting(dev); 905 mdelay(10); 906 907 while ((skb = __skb_dequeue(&priv->rx_queue))) { 908 info = (struct rtl8192_rx_info *)skb->cb; 909 if (!info->urb) 910 continue; 911 912 usb_kill_urb(info->urb); 913 kfree_skb(skb); 914 } 915 916 if (skb_queue_len(&priv->skb_queue)) 917 netdev_warn(dev, "skb_queue not empty\n"); 918 919 skb_queue_purge(&priv->skb_queue); 920 } 921 922 /* The prototype of rx_isr has changed since one version of Linux Kernel */ 923 static void rtl8192_rx_isr(struct urb *urb) 924 { 925 struct sk_buff *skb = (struct sk_buff *)urb->context; 926 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 927 struct net_device *dev = info->dev; 928 struct r8192_priv *priv = ieee80211_priv(dev); 929 int out_pipe = info->out_pipe; 930 int err; 931 932 if (!priv->up) 933 return; 934 935 if (unlikely(urb->status)) { 936 info->urb = NULL; 937 priv->stats.rxstaterr++; 938 priv->ieee80211->stats.rx_errors++; 939 usb_free_urb(urb); 940 return; 941 } 942 skb_unlink(skb, &priv->rx_queue); 943 skb_put(skb, urb->actual_length); 944 945 skb_queue_tail(&priv->skb_queue, skb); 946 tasklet_schedule(&priv->irq_rx_tasklet); 947 948 skb = dev_alloc_skb(RX_URB_SIZE); 949 if (unlikely(!skb)) { 950 usb_free_urb(urb); 951 netdev_err(dev, "%s(): can't alloc skb\n", __func__); 952 /* TODO check rx queue length and refill *somewhere* */ 953 return; 954 } 955 956 usb_fill_bulk_urb(urb, priv->udev, 957 usb_rcvbulkpipe(priv->udev, out_pipe), 958 skb_tail_pointer(skb), 959 RX_URB_SIZE, rtl8192_rx_isr, skb); 960 961 info = (struct rtl8192_rx_info *)skb->cb; 962 info->urb = urb; 963 info->dev = dev; 964 info->out_pipe = out_pipe; 965 966 urb->transfer_buffer = skb_tail_pointer(skb); 967 urb->context = skb; 968 skb_queue_tail(&priv->rx_queue, skb); 969 err = usb_submit_urb(urb, GFP_ATOMIC); 970 if (err && err != EPERM) 971 netdev_err(dev, 972 "can not submit rxurb, err is %x, URB status is %x\n", 973 err, urb->status); 974 } 975 976 static u32 rtl819xusb_rx_command_packet(struct net_device *dev, 977 struct ieee80211_rx_stats *pstats) 978 { 979 u32 status; 980 981 status = cmpk_message_handle_rx(dev, pstats); 982 if (status) 983 DMESG("rxcommandpackethandle819xusb: It is a command packet\n"); 984 985 return status; 986 } 987 988 989 static void rtl8192_data_hard_stop(struct net_device *dev) 990 { 991 /* FIXME !! */ 992 } 993 994 995 static void rtl8192_data_hard_resume(struct net_device *dev) 996 { 997 /* FIXME !! */ 998 } 999 1000 /* this function TX data frames when the ieee80211 stack requires this. 1001 * It checks also if we need to stop the ieee tx queue, eventually do it 1002 */ 1003 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev, 1004 int rate) 1005 { 1006 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 1007 int ret; 1008 unsigned long flags; 1009 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1010 u8 queue_index = tcb_desc->queue_index; 1011 1012 /* shall not be referred by command packet */ 1013 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE); 1014 1015 spin_lock_irqsave(&priv->tx_lock, flags); 1016 1017 *(struct net_device **)(skb->cb) = dev; 1018 tcb_desc->bTxEnableFwCalcDur = 1; 1019 skb_push(skb, priv->ieee80211->tx_headroom); 1020 ret = rtl8192_tx(dev, skb); 1021 1022 spin_unlock_irqrestore(&priv->tx_lock, flags); 1023 } 1024 1025 /* This is a rough attempt to TX a frame 1026 * This is called by the ieee 80211 stack to TX management frames. 1027 * If the ring is full packet are dropped (for data frame the queue 1028 * is stopped before this can happen). 1029 */ 1030 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 1031 { 1032 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 1033 int ret; 1034 unsigned long flags; 1035 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1036 u8 queue_index = tcb_desc->queue_index; 1037 1038 1039 spin_lock_irqsave(&priv->tx_lock, flags); 1040 1041 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev)); 1042 if (queue_index == TXCMD_QUEUE) { 1043 skb_push(skb, USB_HWDESC_HEADER_LEN); 1044 rtl819xU_tx_cmd(dev, skb); 1045 ret = 1; 1046 } else { 1047 skb_push(skb, priv->ieee80211->tx_headroom); 1048 ret = rtl8192_tx(dev, skb); 1049 } 1050 1051 spin_unlock_irqrestore(&priv->tx_lock, flags); 1052 1053 return ret; 1054 } 1055 1056 static void rtl8192_tx_isr(struct urb *tx_urb) 1057 { 1058 struct sk_buff *skb = (struct sk_buff *)tx_urb->context; 1059 struct net_device *dev; 1060 struct r8192_priv *priv = NULL; 1061 struct cb_desc *tcb_desc; 1062 u8 queue_index; 1063 1064 if (!skb) 1065 return; 1066 1067 dev = *(struct net_device **)(skb->cb); 1068 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1069 queue_index = tcb_desc->queue_index; 1070 1071 priv = ieee80211_priv(dev); 1072 1073 if (tcb_desc->queue_index != TXCMD_QUEUE) { 1074 if (tx_urb->status == 0) { 1075 netif_trans_update(dev); 1076 priv->stats.txoktotal++; 1077 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++; 1078 priv->stats.txbytesunicast += 1079 (skb->len - priv->ieee80211->tx_headroom); 1080 } else { 1081 priv->ieee80211->stats.tx_errors++; 1082 /* TODO */ 1083 } 1084 } 1085 1086 /* free skb and tx_urb */ 1087 dev_kfree_skb_any(skb); 1088 usb_free_urb(tx_urb); 1089 atomic_dec(&priv->tx_pending[queue_index]); 1090 1091 /* 1092 * Handle HW Beacon: 1093 * We had transfer our beacon frame to host controller at this moment. 1094 * 1095 * 1096 * Caution: 1097 * Handling the wait queue of command packets. 1098 * For Tx command packets, we must not do TCB fragment because it is 1099 * not handled right now. We must cut the packets to match the size of 1100 * TX_CMD_PKT before we send it. 1101 */ 1102 1103 /* Handle MPDU in wait queue. */ 1104 if (queue_index != BEACON_QUEUE) { 1105 /* Don't send data frame during scanning.*/ 1106 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) && 1107 (!(priv->ieee80211->queue_stop))) { 1108 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index])); 1109 if (skb) 1110 priv->ieee80211->softmac_hard_start_xmit(skb, 1111 dev); 1112 1113 return; /* avoid further processing AMSDU */ 1114 } 1115 } 1116 } 1117 1118 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config) 1119 { 1120 struct r8192_priv *priv = ieee80211_priv(dev); 1121 struct ieee80211_network *net; 1122 u8 i = 0, basic_rate = 0; 1123 1124 net = &priv->ieee80211->current_network; 1125 1126 for (i = 0; i < net->rates_len; i++) { 1127 basic_rate = net->rates[i] & 0x7f; 1128 switch (basic_rate) { 1129 case MGN_1M: 1130 *rate_config |= RRSR_1M; 1131 break; 1132 case MGN_2M: 1133 *rate_config |= RRSR_2M; 1134 break; 1135 case MGN_5_5M: 1136 *rate_config |= RRSR_5_5M; 1137 break; 1138 case MGN_11M: 1139 *rate_config |= RRSR_11M; 1140 break; 1141 case MGN_6M: 1142 *rate_config |= RRSR_6M; 1143 break; 1144 case MGN_9M: 1145 *rate_config |= RRSR_9M; 1146 break; 1147 case MGN_12M: 1148 *rate_config |= RRSR_12M; 1149 break; 1150 case MGN_18M: 1151 *rate_config |= RRSR_18M; 1152 break; 1153 case MGN_24M: 1154 *rate_config |= RRSR_24M; 1155 break; 1156 case MGN_36M: 1157 *rate_config |= RRSR_36M; 1158 break; 1159 case MGN_48M: 1160 *rate_config |= RRSR_48M; 1161 break; 1162 case MGN_54M: 1163 *rate_config |= RRSR_54M; 1164 break; 1165 } 1166 } 1167 for (i = 0; i < net->rates_ex_len; i++) { 1168 basic_rate = net->rates_ex[i] & 0x7f; 1169 switch (basic_rate) { 1170 case MGN_1M: 1171 *rate_config |= RRSR_1M; 1172 break; 1173 case MGN_2M: 1174 *rate_config |= RRSR_2M; 1175 break; 1176 case MGN_5_5M: 1177 *rate_config |= RRSR_5_5M; 1178 break; 1179 case MGN_11M: 1180 *rate_config |= RRSR_11M; 1181 break; 1182 case MGN_6M: 1183 *rate_config |= RRSR_6M; 1184 break; 1185 case MGN_9M: 1186 *rate_config |= RRSR_9M; 1187 break; 1188 case MGN_12M: 1189 *rate_config |= RRSR_12M; 1190 break; 1191 case MGN_18M: 1192 *rate_config |= RRSR_18M; 1193 break; 1194 case MGN_24M: 1195 *rate_config |= RRSR_24M; 1196 break; 1197 case MGN_36M: 1198 *rate_config |= RRSR_36M; 1199 break; 1200 case MGN_48M: 1201 *rate_config |= RRSR_48M; 1202 break; 1203 case MGN_54M: 1204 *rate_config |= RRSR_54M; 1205 break; 1206 } 1207 } 1208 } 1209 1210 1211 #define SHORT_SLOT_TIME 9 1212 #define NON_SHORT_SLOT_TIME 20 1213 1214 static void rtl8192_update_cap(struct net_device *dev, u16 cap) 1215 { 1216 u32 tmp = 0; 1217 struct r8192_priv *priv = ieee80211_priv(dev); 1218 struct ieee80211_network *net = &priv->ieee80211->current_network; 1219 1220 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE; 1221 tmp = priv->basic_rate; 1222 if (priv->short_preamble) 1223 tmp |= BRSR_AckShortPmb; 1224 write_nic_dword(dev, RRSR, tmp); 1225 1226 if (net->mode & (IEEE_G | IEEE_N_24G)) { 1227 u8 slot_time = 0; 1228 1229 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) && 1230 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime)) 1231 /* short slot time */ 1232 slot_time = SHORT_SLOT_TIME; 1233 else /* long slot time */ 1234 slot_time = NON_SHORT_SLOT_TIME; 1235 priv->slot_time = slot_time; 1236 write_nic_byte(dev, SLOT_TIME, slot_time); 1237 } 1238 } 1239 1240 static void rtl8192_net_update(struct net_device *dev) 1241 { 1242 struct r8192_priv *priv = ieee80211_priv(dev); 1243 struct ieee80211_network *net; 1244 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf; 1245 u16 rate_config = 0; 1246 1247 net = &priv->ieee80211->current_network; 1248 1249 rtl8192_config_rate(dev, &rate_config); 1250 priv->basic_rate = rate_config & 0x15f; 1251 1252 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]); 1253 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]); 1254 1255 rtl8192_update_msr(dev); 1256 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) { 1257 write_nic_word(dev, ATIMWND, 2); 1258 write_nic_word(dev, BCN_DMATIME, 1023); 1259 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval); 1260 write_nic_word(dev, BCN_DRV_EARLY_INT, 1); 1261 write_nic_byte(dev, BCN_ERR_THRESH, 100); 1262 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT); 1263 /* TODO: BcnIFS may required to be changed on ASIC */ 1264 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS; 1265 1266 write_nic_word(dev, BCN_TCFG, BcnTimeCfg); 1267 } 1268 } 1269 1270 /* temporary hw beacon is not used any more. 1271 * open it when necessary 1272 */ 1273 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate) 1274 { 1275 1276 } 1277 1278 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb) 1279 { 1280 struct r8192_priv *priv = ieee80211_priv(dev); 1281 int status; 1282 struct urb *tx_urb; 1283 unsigned int idx_pipe; 1284 tx_desc_cmd_819x_usb *pdesc = (tx_desc_cmd_819x_usb *)skb->data; 1285 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1286 u8 queue_index = tcb_desc->queue_index; 1287 1288 atomic_inc(&priv->tx_pending[queue_index]); 1289 tx_urb = usb_alloc_urb(0, GFP_ATOMIC); 1290 if (!tx_urb) { 1291 dev_kfree_skb(skb); 1292 return -ENOMEM; 1293 } 1294 1295 memset(pdesc, 0, USB_HWDESC_HEADER_LEN); 1296 /* Tx descriptor ought to be set according to the skb->cb */ 1297 pdesc->FirstSeg = 1; 1298 pdesc->LastSeg = 1; 1299 pdesc->CmdInit = tcb_desc->bCmdOrInit; 1300 pdesc->TxBufferSize = tcb_desc->txbuf_size; 1301 pdesc->OWN = 1; 1302 pdesc->LINIP = tcb_desc->bLastIniPkt; 1303 1304 /*--------------------------------------------------------------------- 1305 * Fill up USB_OUT_CONTEXT. 1306 *--------------------------------------------------------------------- 1307 */ 1308 idx_pipe = 0x04; 1309 usb_fill_bulk_urb(tx_urb, priv->udev, 1310 usb_sndbulkpipe(priv->udev, idx_pipe), 1311 skb->data, skb->len, rtl8192_tx_isr, skb); 1312 1313 status = usb_submit_urb(tx_urb, GFP_ATOMIC); 1314 1315 if (!status) 1316 return 0; 1317 1318 DMESGE("Error TX CMD URB, error %d", status); 1319 return -1; 1320 } 1321 1322 /* 1323 * Mapping Software/Hardware descriptor queue id to "Queue Select Field" 1324 * in TxFwInfo data structure 1325 * 2006.10.30 by Emily 1326 * 1327 * \param QUEUEID Software Queue 1328 */ 1329 static u8 MapHwQueueToFirmwareQueue(u8 QueueID) 1330 { 1331 u8 QueueSelect = 0x0; /* default set to */ 1332 1333 switch (QueueID) { 1334 case BE_QUEUE: 1335 QueueSelect = QSLT_BE; 1336 break; 1337 1338 case BK_QUEUE: 1339 QueueSelect = QSLT_BK; 1340 break; 1341 1342 case VO_QUEUE: 1343 QueueSelect = QSLT_VO; 1344 break; 1345 1346 case VI_QUEUE: 1347 QueueSelect = QSLT_VI; 1348 break; 1349 case MGNT_QUEUE: 1350 QueueSelect = QSLT_MGNT; 1351 break; 1352 1353 case BEACON_QUEUE: 1354 QueueSelect = QSLT_BEACON; 1355 break; 1356 1357 /* TODO: mark other queue selection until we verify it is OK */ 1358 /* TODO: Remove Assertions */ 1359 case TXCMD_QUEUE: 1360 QueueSelect = QSLT_CMD; 1361 break; 1362 case HIGH_QUEUE: 1363 QueueSelect = QSLT_HIGH; 1364 break; 1365 1366 default: 1367 RT_TRACE(COMP_ERR, 1368 "TransmitTCB(): Impossible Queue Selection: %d\n", 1369 QueueID); 1370 break; 1371 } 1372 return QueueSelect; 1373 } 1374 1375 static u8 MRateToHwRate8190Pci(u8 rate) 1376 { 1377 u8 ret = DESC90_RATE1M; 1378 1379 switch (rate) { 1380 case MGN_1M: 1381 ret = DESC90_RATE1M; 1382 break; 1383 case MGN_2M: 1384 ret = DESC90_RATE2M; 1385 break; 1386 case MGN_5_5M: 1387 ret = DESC90_RATE5_5M; 1388 break; 1389 case MGN_11M: 1390 ret = DESC90_RATE11M; 1391 break; 1392 case MGN_6M: 1393 ret = DESC90_RATE6M; 1394 break; 1395 case MGN_9M: 1396 ret = DESC90_RATE9M; 1397 break; 1398 case MGN_12M: 1399 ret = DESC90_RATE12M; 1400 break; 1401 case MGN_18M: 1402 ret = DESC90_RATE18M; 1403 break; 1404 case MGN_24M: 1405 ret = DESC90_RATE24M; 1406 break; 1407 case MGN_36M: 1408 ret = DESC90_RATE36M; 1409 break; 1410 case MGN_48M: 1411 ret = DESC90_RATE48M; 1412 break; 1413 case MGN_54M: 1414 ret = DESC90_RATE54M; 1415 break; 1416 1417 /* HT rate since here */ 1418 case MGN_MCS0: 1419 ret = DESC90_RATEMCS0; 1420 break; 1421 case MGN_MCS1: 1422 ret = DESC90_RATEMCS1; 1423 break; 1424 case MGN_MCS2: 1425 ret = DESC90_RATEMCS2; 1426 break; 1427 case MGN_MCS3: 1428 ret = DESC90_RATEMCS3; 1429 break; 1430 case MGN_MCS4: 1431 ret = DESC90_RATEMCS4; 1432 break; 1433 case MGN_MCS5: 1434 ret = DESC90_RATEMCS5; 1435 break; 1436 case MGN_MCS6: 1437 ret = DESC90_RATEMCS6; 1438 break; 1439 case MGN_MCS7: 1440 ret = DESC90_RATEMCS7; 1441 break; 1442 case MGN_MCS8: 1443 ret = DESC90_RATEMCS8; 1444 break; 1445 case MGN_MCS9: 1446 ret = DESC90_RATEMCS9; 1447 break; 1448 case MGN_MCS10: 1449 ret = DESC90_RATEMCS10; 1450 break; 1451 case MGN_MCS11: 1452 ret = DESC90_RATEMCS11; 1453 break; 1454 case MGN_MCS12: 1455 ret = DESC90_RATEMCS12; 1456 break; 1457 case MGN_MCS13: 1458 ret = DESC90_RATEMCS13; 1459 break; 1460 case MGN_MCS14: 1461 ret = DESC90_RATEMCS14; 1462 break; 1463 case MGN_MCS15: 1464 ret = DESC90_RATEMCS15; 1465 break; 1466 case (0x80 | 0x20): 1467 ret = DESC90_RATEMCS32; 1468 break; 1469 1470 default: 1471 break; 1472 } 1473 return ret; 1474 } 1475 1476 1477 static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc) 1478 { 1479 u8 tmp_Short; 1480 1481 tmp_Short = (TxHT == 1) ? 1482 ((tcb_desc->bUseShortGI) ? 1 : 0) : 1483 ((tcb_desc->bUseShortPreamble) ? 1 : 0); 1484 1485 if (TxHT == 1 && TxRate != DESC90_RATEMCS15) 1486 tmp_Short = 0; 1487 1488 return tmp_Short; 1489 } 1490 1491 static void tx_zero_isr(struct urb *tx_urb) 1492 { 1493 } 1494 1495 /* 1496 * The tx procedure is just as following, 1497 * skb->cb will contain all the following information, 1498 * priority, morefrag, rate, &dev. 1499 */ 1500 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) 1501 { 1502 struct r8192_priv *priv = ieee80211_priv(dev); 1503 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1504 tx_desc_819x_usb *tx_desc = (tx_desc_819x_usb *)skb->data; 1505 tx_fwinfo_819x_usb *tx_fwinfo = 1506 (tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN); 1507 struct usb_device *udev = priv->udev; 1508 int pend; 1509 int status; 1510 struct urb *tx_urb = NULL, *tx_urb_zero = NULL; 1511 unsigned int idx_pipe; 1512 1513 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]); 1514 /* we are locked here so the two atomic_read and inc are executed 1515 * without interleaves 1516 * !!! For debug purpose 1517 */ 1518 if (pend > MAX_TX_URB) { 1519 netdev_dbg(dev, "To discard skb packet!\n"); 1520 dev_kfree_skb_any(skb); 1521 return -1; 1522 } 1523 1524 tx_urb = usb_alloc_urb(0, GFP_ATOMIC); 1525 if (!tx_urb) { 1526 dev_kfree_skb_any(skb); 1527 return -ENOMEM; 1528 } 1529 1530 /* Fill Tx firmware info */ 1531 memset(tx_fwinfo, 0, sizeof(tx_fwinfo_819x_usb)); 1532 /* DWORD 0 */ 1533 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0; 1534 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate); 1535 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur; 1536 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate, 1537 tcb_desc); 1538 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */ 1539 tx_fwinfo->AllowAggregation = 1; 1540 /* DWORD 1 */ 1541 tx_fwinfo->RxMF = tcb_desc->ampdu_factor; 1542 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07; 1543 } else { 1544 tx_fwinfo->AllowAggregation = 0; 1545 /* DWORD 1 */ 1546 tx_fwinfo->RxMF = 0; 1547 tx_fwinfo->RxAMD = 0; 1548 } 1549 1550 /* Protection mode related */ 1551 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0; 1552 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0; 1553 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0; 1554 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0; 1555 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate); 1556 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0; 1557 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0; 1558 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) : 1559 (tcb_desc->bRTSUseShortGI ? 1 : 0); 1560 1561 /* Set Bandwidth and sub-channel settings. */ 1562 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) { 1563 if (tcb_desc->bPacketBW) { 1564 tx_fwinfo->TxBandwidth = 1; 1565 /* use duplicated mode */ 1566 tx_fwinfo->TxSubCarrier = 0; 1567 } else { 1568 tx_fwinfo->TxBandwidth = 0; 1569 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC; 1570 } 1571 } else { 1572 tx_fwinfo->TxBandwidth = 0; 1573 tx_fwinfo->TxSubCarrier = 0; 1574 } 1575 1576 /* Fill Tx descriptor */ 1577 memset(tx_desc, 0, sizeof(tx_desc_819x_usb)); 1578 /* DWORD 0 */ 1579 tx_desc->LINIP = 0; 1580 tx_desc->CmdInit = 1; 1581 tx_desc->Offset = sizeof(tx_fwinfo_819x_usb) + 8; 1582 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff; 1583 1584 /*DWORD 1*/ 1585 tx_desc->SecCAMID = 0; 1586 tx_desc->RATid = tcb_desc->RATRIndex; 1587 tx_desc->NoEnc = 1; 1588 tx_desc->SecType = 0x0; 1589 if (tcb_desc->bHwSec) { 1590 switch (priv->ieee80211->pairwise_key_type) { 1591 case KEY_TYPE_WEP40: 1592 case KEY_TYPE_WEP104: 1593 tx_desc->SecType = 0x1; 1594 tx_desc->NoEnc = 0; 1595 break; 1596 case KEY_TYPE_TKIP: 1597 tx_desc->SecType = 0x2; 1598 tx_desc->NoEnc = 0; 1599 break; 1600 case KEY_TYPE_CCMP: 1601 tx_desc->SecType = 0x3; 1602 tx_desc->NoEnc = 0; 1603 break; 1604 case KEY_TYPE_NA: 1605 tx_desc->SecType = 0x0; 1606 tx_desc->NoEnc = 1; 1607 break; 1608 } 1609 } 1610 1611 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index); 1612 tx_desc->TxFWInfoSize = sizeof(tx_fwinfo_819x_usb); 1613 1614 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack; 1615 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate; 1616 1617 /* Fill fields that are required to be initialized in 1618 * all of the descriptors 1619 */ 1620 /* DWORD 0 */ 1621 tx_desc->FirstSeg = 1; 1622 tx_desc->LastSeg = 1; 1623 tx_desc->OWN = 1; 1624 1625 /* DWORD 2 */ 1626 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN); 1627 idx_pipe = 0x5; 1628 1629 /* To submit bulk urb */ 1630 usb_fill_bulk_urb(tx_urb, udev, 1631 usb_sndbulkpipe(udev, idx_pipe), skb->data, 1632 skb->len, rtl8192_tx_isr, skb); 1633 1634 status = usb_submit_urb(tx_urb, GFP_ATOMIC); 1635 if (!status) { 1636 /* We need to send 0 byte packet whenever 1637 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has 1638 * been transmitted. Otherwise, it will be halt to wait for 1639 * another packet. 1640 */ 1641 bool bSend0Byte = false; 1642 u8 zero = 0; 1643 1644 if (udev->speed == USB_SPEED_HIGH) { 1645 if (skb->len > 0 && skb->len % 512 == 0) 1646 bSend0Byte = true; 1647 } else { 1648 if (skb->len > 0 && skb->len % 64 == 0) 1649 bSend0Byte = true; 1650 } 1651 if (bSend0Byte) { 1652 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC); 1653 if (!tx_urb_zero) 1654 return -ENOMEM; 1655 usb_fill_bulk_urb(tx_urb_zero, udev, 1656 usb_sndbulkpipe(udev, idx_pipe), 1657 &zero, 0, tx_zero_isr, dev); 1658 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC); 1659 if (status) { 1660 RT_TRACE(COMP_ERR, 1661 "Error TX URB for zero byte %d, error %d", 1662 atomic_read(&priv->tx_pending[tcb_desc->queue_index]), 1663 status); 1664 return -1; 1665 } 1666 } 1667 netif_trans_update(dev); 1668 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]); 1669 return 0; 1670 } 1671 1672 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d", 1673 atomic_read(&priv->tx_pending[tcb_desc->queue_index]), 1674 status); 1675 return -1; 1676 } 1677 1678 static short rtl8192_usb_initendpoints(struct net_device *dev) 1679 { 1680 struct r8192_priv *priv = ieee80211_priv(dev); 1681 1682 priv->rx_urb = kmalloc(sizeof(struct urb *) * (MAX_RX_URB + 1), 1683 GFP_KERNEL); 1684 if (!priv->rx_urb) 1685 return -ENOMEM; 1686 1687 #ifndef JACKSON_NEW_RX 1688 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1689 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); 1690 if (!priv->rx_urb[i]) 1691 return -ENOMEM; 1692 1693 priv->rx_urb[i]->transfer_buffer = 1694 kmalloc(RX_URB_SIZE, GFP_KERNEL); 1695 if (!priv->rx_urb[i]->transfer_buffer) 1696 return -ENOMEM; 1697 1698 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE; 1699 } 1700 #endif 1701 1702 #ifdef THOMAS_BEACON 1703 { 1704 long align = 0; 1705 void *oldaddr, *newaddr; 1706 1707 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL); 1708 priv->oldaddr = kmalloc(16, GFP_KERNEL); 1709 oldaddr = priv->oldaddr; 1710 align = ((long)oldaddr) & 3; 1711 if (align) { 1712 newaddr = oldaddr + 4 - align; 1713 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align; 1714 } else { 1715 newaddr = oldaddr; 1716 priv->rx_urb[16]->transfer_buffer_length = 16; 1717 } 1718 priv->rx_urb[16]->transfer_buffer = newaddr; 1719 } 1720 #endif 1721 1722 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB); 1723 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *), 1724 GFP_KERNEL); 1725 if (!priv->pp_rxskb) { 1726 kfree(priv->rx_urb); 1727 1728 priv->pp_rxskb = NULL; 1729 priv->rx_urb = NULL; 1730 1731 DMESGE("Endpoint Alloc Failure"); 1732 return -ENOMEM; 1733 } 1734 1735 netdev_dbg(dev, "End of initendpoints\n"); 1736 return 0; 1737 } 1738 1739 #ifdef THOMAS_BEACON 1740 static void rtl8192_usb_deleteendpoints(struct net_device *dev) 1741 { 1742 int i; 1743 struct r8192_priv *priv = ieee80211_priv(dev); 1744 1745 if (priv->rx_urb) { 1746 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1747 usb_kill_urb(priv->rx_urb[i]); 1748 usb_free_urb(priv->rx_urb[i]); 1749 } 1750 kfree(priv->rx_urb); 1751 priv->rx_urb = NULL; 1752 } 1753 kfree(priv->oldaddr); 1754 priv->oldaddr = NULL; 1755 1756 kfree(priv->pp_rxskb); 1757 priv->pp_rxskb = NULL; 1758 } 1759 #else 1760 void rtl8192_usb_deleteendpoints(struct net_device *dev) 1761 { 1762 int i; 1763 struct r8192_priv *priv = ieee80211_priv(dev); 1764 1765 #ifndef JACKSON_NEW_RX 1766 1767 if (priv->rx_urb) { 1768 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1769 usb_kill_urb(priv->rx_urb[i]); 1770 kfree(priv->rx_urb[i]->transfer_buffer); 1771 usb_free_urb(priv->rx_urb[i]); 1772 } 1773 kfree(priv->rx_urb); 1774 priv->rx_urb = NULL; 1775 } 1776 #else 1777 kfree(priv->rx_urb); 1778 priv->rx_urb = NULL; 1779 kfree(priv->oldaddr); 1780 priv->oldaddr = NULL; 1781 1782 kfree(priv->pp_rxskb); 1783 priv->pp_rxskb = 0; 1784 1785 #endif 1786 } 1787 #endif 1788 1789 static void rtl8192_update_ratr_table(struct net_device *dev); 1790 static void rtl8192_link_change(struct net_device *dev) 1791 { 1792 struct r8192_priv *priv = ieee80211_priv(dev); 1793 struct ieee80211_device *ieee = priv->ieee80211; 1794 1795 if (ieee->state == IEEE80211_LINKED) { 1796 rtl8192_net_update(dev); 1797 rtl8192_update_ratr_table(dev); 1798 /* Add this as in pure N mode, wep encryption will use software 1799 * way, but there is no chance to set this as wep will not set 1800 * group key in wext. 1801 */ 1802 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 || 1803 ieee->pairwise_key_type == KEY_TYPE_WEP104) 1804 EnableHWSecurityConfig8192(dev); 1805 } 1806 /*update timing params*/ 1807 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) { 1808 u32 reg = 0; 1809 1810 read_nic_dword(dev, RCR, ®); 1811 if (priv->ieee80211->state == IEEE80211_LINKED) 1812 priv->ReceiveConfig = reg |= RCR_CBSSID; 1813 else 1814 priv->ReceiveConfig = reg &= ~RCR_CBSSID; 1815 write_nic_dword(dev, RCR, reg); 1816 } 1817 } 1818 1819 static const struct ieee80211_qos_parameters def_qos_parameters = { 1820 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)}, 1821 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)}, 1822 {2, 2, 2, 2},/* aifs */ 1823 {0, 0, 0, 0},/* flags */ 1824 {0, 0, 0, 0} /* tx_op_limit */ 1825 }; 1826 1827 1828 static void rtl8192_update_beacon(struct work_struct *work) 1829 { 1830 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1831 update_beacon_wq.work); 1832 struct net_device *dev = priv->ieee80211->dev; 1833 struct ieee80211_device *ieee = priv->ieee80211; 1834 struct ieee80211_network *net = &ieee->current_network; 1835 1836 if (ieee->pHTInfo->bCurrentHTSupport) 1837 HTUpdateSelfAndPeerSetting(ieee, net); 1838 ieee->pHTInfo->bCurrentRT2RTLongSlotTime = 1839 net->bssht.bdRT2RTLongSlotTime; 1840 rtl8192_update_cap(dev, net->capability); 1841 } 1842 1843 /* 1844 * background support to run QoS activate functionality 1845 */ 1846 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK, 1847 EDCAPARA_VI, EDCAPARA_VO}; 1848 static void rtl8192_qos_activate(struct work_struct *work) 1849 { 1850 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1851 qos_activate); 1852 struct net_device *dev = priv->ieee80211->dev; 1853 struct ieee80211_qos_parameters *qos_parameters = 1854 &priv->ieee80211->current_network.qos_data.parameters; 1855 u8 mode = priv->ieee80211->current_network.mode; 1856 u32 u1bAIFS; 1857 u32 u4bAcParam; 1858 u32 op_limit; 1859 u32 cw_max; 1860 u32 cw_min; 1861 int i; 1862 1863 mutex_lock(&priv->mutex); 1864 if (priv->ieee80211->state != IEEE80211_LINKED) 1865 goto success; 1866 RT_TRACE(COMP_QOS, 1867 "qos active process with associate response received\n"); 1868 /* It better set slot time at first 1869 * 1870 * For we just support b/g mode at present, let the slot time at 1871 * 9/20 selection 1872 * 1873 * update the ac parameter to related registers 1874 */ 1875 for (i = 0; i < QOS_QUEUE_NUM; i++) { 1876 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */ 1877 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime; 1878 u1bAIFS <<= AC_PARAM_AIFS_OFFSET; 1879 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]); 1880 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET; 1881 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]); 1882 cw_max <<= AC_PARAM_ECW_MAX_OFFSET; 1883 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]); 1884 cw_min <<= AC_PARAM_ECW_MIN_OFFSET; 1885 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS; 1886 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam); 1887 } 1888 1889 success: 1890 mutex_unlock(&priv->mutex); 1891 } 1892 1893 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv, 1894 int active_network, 1895 struct ieee80211_network *network) 1896 { 1897 int ret = 0; 1898 u32 size = sizeof(struct ieee80211_qos_parameters); 1899 1900 if (priv->ieee80211->state != IEEE80211_LINKED) 1901 return ret; 1902 1903 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1904 return ret; 1905 1906 if (network->flags & NETWORK_HAS_QOS_MASK) { 1907 if (active_network && 1908 (network->flags & NETWORK_HAS_QOS_PARAMETERS)) 1909 network->qos_data.active = network->qos_data.supported; 1910 1911 if ((network->qos_data.active == 1) && (active_network == 1) && 1912 (network->flags & NETWORK_HAS_QOS_PARAMETERS) && 1913 (network->qos_data.old_param_count != 1914 network->qos_data.param_count)) { 1915 network->qos_data.old_param_count = 1916 network->qos_data.param_count; 1917 schedule_work(&priv->qos_activate); 1918 RT_TRACE(COMP_QOS, 1919 "QoS parameters change call qos_activate\n"); 1920 } 1921 } else { 1922 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1923 &def_qos_parameters, size); 1924 1925 if ((network->qos_data.active == 1) && (active_network == 1)) { 1926 schedule_work(&priv->qos_activate); 1927 RT_TRACE(COMP_QOS, 1928 "QoS was disabled call qos_activate\n"); 1929 } 1930 network->qos_data.active = 0; 1931 network->qos_data.supported = 0; 1932 } 1933 1934 return 0; 1935 } 1936 1937 /* handle and manage frame from beacon and probe response */ 1938 static int rtl8192_handle_beacon(struct net_device *dev, 1939 struct ieee80211_beacon *beacon, 1940 struct ieee80211_network *network) 1941 { 1942 struct r8192_priv *priv = ieee80211_priv(dev); 1943 1944 rtl8192_qos_handle_probe_response(priv, 1, network); 1945 schedule_delayed_work(&priv->update_beacon_wq, 0); 1946 return 0; 1947 } 1948 1949 /* 1950 * handling the beaconing responses. if we get different QoS setting 1951 * off the network from the associated setting, adjust the QoS 1952 * setting 1953 */ 1954 static int rtl8192_qos_association_resp(struct r8192_priv *priv, 1955 struct ieee80211_network *network) 1956 { 1957 unsigned long flags; 1958 u32 size = sizeof(struct ieee80211_qos_parameters); 1959 int set_qos_param = 0; 1960 1961 if (!priv || !network) 1962 return 0; 1963 1964 if (priv->ieee80211->state != IEEE80211_LINKED) 1965 return 0; 1966 1967 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1968 return 0; 1969 1970 spin_lock_irqsave(&priv->ieee80211->lock, flags); 1971 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { 1972 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1973 &network->qos_data.parameters, 1974 sizeof(struct ieee80211_qos_parameters)); 1975 priv->ieee80211->current_network.qos_data.active = 1; 1976 set_qos_param = 1; 1977 /* update qos parameter for current network */ 1978 priv->ieee80211->current_network.qos_data.old_param_count = 1979 priv->ieee80211->current_network.qos_data.param_count; 1980 priv->ieee80211->current_network.qos_data.param_count = 1981 network->qos_data.param_count; 1982 } else { 1983 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1984 &def_qos_parameters, size); 1985 priv->ieee80211->current_network.qos_data.active = 0; 1986 priv->ieee80211->current_network.qos_data.supported = 0; 1987 set_qos_param = 1; 1988 } 1989 1990 spin_unlock_irqrestore(&priv->ieee80211->lock, flags); 1991 1992 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__, 1993 network->flags, 1994 priv->ieee80211->current_network.qos_data.active); 1995 if (set_qos_param == 1) 1996 schedule_work(&priv->qos_activate); 1997 1998 1999 return 0; 2000 } 2001 2002 2003 static int rtl8192_handle_assoc_response( 2004 struct net_device *dev, 2005 struct ieee80211_assoc_response_frame *resp, 2006 struct ieee80211_network *network) 2007 { 2008 struct r8192_priv *priv = ieee80211_priv(dev); 2009 2010 rtl8192_qos_association_resp(priv, network); 2011 return 0; 2012 } 2013 2014 2015 static void rtl8192_update_ratr_table(struct net_device *dev) 2016 { 2017 struct r8192_priv *priv = ieee80211_priv(dev); 2018 struct ieee80211_device *ieee = priv->ieee80211; 2019 u8 *pMcsRate = ieee->dot11HTOperationalRateSet; 2020 u32 ratr_value = 0; 2021 u8 rate_index = 0; 2022 2023 rtl8192_config_rate(dev, (u16 *)(&ratr_value)); 2024 ratr_value |= (*(u16 *)(pMcsRate)) << 12; 2025 switch (ieee->mode) { 2026 case IEEE_A: 2027 ratr_value &= 0x00000FF0; 2028 break; 2029 case IEEE_B: 2030 ratr_value &= 0x0000000F; 2031 break; 2032 case IEEE_G: 2033 ratr_value &= 0x00000FF7; 2034 break; 2035 case IEEE_N_24G: 2036 case IEEE_N_5G: 2037 if (ieee->pHTInfo->PeerMimoPs == 0) { /* MIMO_PS_STATIC */ 2038 ratr_value &= 0x0007F007; 2039 } else { 2040 if (priv->rf_type == RF_1T2R) 2041 ratr_value &= 0x000FF007; 2042 else 2043 ratr_value &= 0x0F81F007; 2044 } 2045 break; 2046 default: 2047 break; 2048 } 2049 ratr_value &= 0x0FFFFFFF; 2050 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz) 2051 ratr_value |= 0x80000000; 2052 else if (!ieee->pHTInfo->bCurTxBW40MHz && 2053 ieee->pHTInfo->bCurShortGI20MHz) 2054 ratr_value |= 0x80000000; 2055 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value); 2056 write_nic_byte(dev, UFWP, 1); 2057 } 2058 2059 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04}; 2060 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04}; 2061 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev) 2062 { 2063 struct r8192_priv *priv = ieee80211_priv(dev); 2064 struct ieee80211_device *ieee = priv->ieee80211; 2065 struct ieee80211_network *network = &ieee->current_network; 2066 int wpa_ie_len = ieee->wpa_ie_len; 2067 struct ieee80211_crypt_data *crypt; 2068 int encrypt; 2069 2070 crypt = ieee->crypt[ieee->tx_keyidx]; 2071 /* we use connecting AP's capability instead of only security config 2072 * on our driver to distinguish whether it should use N mode or G mode 2073 */ 2074 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) || 2075 (ieee->host_encrypt && crypt && crypt->ops && 2076 (strcmp(crypt->ops->name, "WEP") == 0)); 2077 2078 /* simply judge */ 2079 if (encrypt && (wpa_ie_len == 0)) { 2080 /* wep encryption, no N mode setting */ 2081 return false; 2082 } else if ((wpa_ie_len != 0)) { 2083 /* parse pairwise key type */ 2084 if (((ieee->wpa_ie[0] == 0xdd) && (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) || ((ieee->wpa_ie[0] == 0x30) && (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4)))) 2085 return true; 2086 else 2087 return false; 2088 } else { 2089 return true; 2090 } 2091 2092 return true; 2093 } 2094 2095 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev) 2096 { 2097 struct r8192_priv *priv = ieee80211_priv(dev); 2098 2099 return priv->ieee80211->bHalfWirelessN24GMode; 2100 } 2101 2102 static void rtl8192_refresh_supportrate(struct r8192_priv *priv) 2103 { 2104 struct ieee80211_device *ieee = priv->ieee80211; 2105 /* We do not consider set support rate for ABG mode, only 2106 * HT MCS rate is set here. 2107 */ 2108 if (ieee->mode == WIRELESS_MODE_N_24G || 2109 ieee->mode == WIRELESS_MODE_N_5G) 2110 memcpy(ieee->Regdot11HTOperationalRateSet, 2111 ieee->RegHTSuppRateSet, 16); 2112 else 2113 memset(ieee->Regdot11HTOperationalRateSet, 0, 16); 2114 } 2115 2116 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev) 2117 { 2118 struct r8192_priv *priv = ieee80211_priv(dev); 2119 u8 ret = 0; 2120 2121 switch (priv->rf_chip) { 2122 case RF_8225: 2123 case RF_8256: 2124 case RF_PSEUDO_11N: 2125 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B; 2126 break; 2127 case RF_8258: 2128 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G; 2129 break; 2130 default: 2131 ret = WIRELESS_MODE_B; 2132 break; 2133 } 2134 return ret; 2135 } 2136 2137 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) 2138 { 2139 struct r8192_priv *priv = ieee80211_priv(dev); 2140 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev); 2141 2142 if (wireless_mode == WIRELESS_MODE_AUTO || 2143 (wireless_mode & bSupportMode) == 0) { 2144 if (bSupportMode & WIRELESS_MODE_N_24G) { 2145 wireless_mode = WIRELESS_MODE_N_24G; 2146 } else if (bSupportMode & WIRELESS_MODE_N_5G) { 2147 wireless_mode = WIRELESS_MODE_N_5G; 2148 } else if ((bSupportMode & WIRELESS_MODE_A)) { 2149 wireless_mode = WIRELESS_MODE_A; 2150 } else if ((bSupportMode & WIRELESS_MODE_G)) { 2151 wireless_mode = WIRELESS_MODE_G; 2152 } else if ((bSupportMode & WIRELESS_MODE_B)) { 2153 wireless_mode = WIRELESS_MODE_B; 2154 } else { 2155 RT_TRACE(COMP_ERR, 2156 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n", 2157 __func__, bSupportMode); 2158 wireless_mode = WIRELESS_MODE_B; 2159 } 2160 } 2161 #ifdef TO_DO_LIST 2162 /* TODO: this function doesn't work well at this time, 2163 * we should wait for FPGA 2164 */ 2165 ActUpdateChannelAccessSetting( 2166 pAdapter, pHalData->CurrentWirelessMode, 2167 &pAdapter->MgntInfo.Info8185.ChannelAccessSetting); 2168 #endif 2169 priv->ieee80211->mode = wireless_mode; 2170 2171 if (wireless_mode == WIRELESS_MODE_N_24G || 2172 wireless_mode == WIRELESS_MODE_N_5G) 2173 priv->ieee80211->pHTInfo->bEnableHT = 1; 2174 else 2175 priv->ieee80211->pHTInfo->bEnableHT = 0; 2176 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode); 2177 rtl8192_refresh_supportrate(priv); 2178 } 2179 2180 /* init priv variables here. only non_zero value should be initialized here. */ 2181 static void rtl8192_init_priv_variable(struct net_device *dev) 2182 { 2183 struct r8192_priv *priv = ieee80211_priv(dev); 2184 u8 i; 2185 2186 priv->card_8192 = NIC_8192U; 2187 priv->chan = 1; /* set to channel 1 */ 2188 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */ 2189 priv->ieee80211->iw_mode = IW_MODE_INFRA; 2190 priv->ieee80211->ieee_up = 0; 2191 priv->retry_rts = DEFAULT_RETRY_RTS; 2192 priv->retry_data = DEFAULT_RETRY_DATA; 2193 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD; 2194 priv->ieee80211->rate = 110; /* 11 mbps */ 2195 priv->ieee80211->short_slot = 1; 2196 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 2197 priv->CckPwEnl = 6; 2198 /* for silent reset */ 2199 priv->IrpPendingCount = 1; 2200 priv->ResetProgress = RESET_TYPE_NORESET; 2201 priv->bForcedSilentReset = false; 2202 priv->bDisableNormalResetCheck = false; 2203 priv->force_reset = false; 2204 2205 /* we don't use FW read/write RF until stable firmware is available. */ 2206 priv->ieee80211->FwRWRF = 0; 2207 priv->ieee80211->current_network.beacon_interval = 2208 DEFAULT_BEACONINTERVAL; 2209 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN | 2210 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ | 2211 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE | 2212 IEEE_SOFTMAC_BEACONS; 2213 2214 priv->ieee80211->active_scan = 1; 2215 priv->ieee80211->modulation = 2216 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION; 2217 priv->ieee80211->host_encrypt = 1; 2218 priv->ieee80211->host_decrypt = 1; 2219 priv->ieee80211->start_send_beacons = NULL; 2220 priv->ieee80211->stop_send_beacons = NULL; 2221 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit; 2222 priv->ieee80211->set_chan = rtl8192_set_chan; 2223 priv->ieee80211->link_change = rtl8192_link_change; 2224 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit; 2225 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop; 2226 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume; 2227 priv->ieee80211->init_wmmparam_flag = 0; 2228 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD; 2229 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc; 2230 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES; 2231 priv->ieee80211->qos_support = 1; 2232 2233 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode; 2234 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response; 2235 priv->ieee80211->handle_beacon = rtl8192_handle_beacon; 2236 2237 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192; 2238 priv->ieee80211->GetHalfNmodeSupportByAPsHandler = 2239 GetHalfNmodeSupportByAPs819xUsb; 2240 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode; 2241 2242 priv->ieee80211->InitialGainHandler = InitialGain819xUsb; 2243 priv->card_type = USB; 2244 #ifdef TO_DO_LIST 2245 if (Adapter->bInHctTest) { 2246 pHalData->ShortRetryLimit = 7; 2247 pHalData->LongRetryLimit = 7; 2248 } 2249 #endif 2250 priv->ShortRetryLimit = 0x30; 2251 priv->LongRetryLimit = 0x30; 2252 priv->EarlyRxThreshold = 7; 2253 priv->enable_gpio0 = 0; 2254 priv->TransmitConfig = 2255 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */ 2256 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) | 2257 /* Short retry limit */ 2258 (priv->ShortRetryLimit << TCR_SRL_OFFSET) | 2259 /* Long retry limit */ 2260 (priv->LongRetryLimit << TCR_LRL_OFFSET) | 2261 /* FALSE: HW provides PLCP length and LENGEXT 2262 * TRUE: SW provides them 2263 */ 2264 (false ? TCR_SAT : 0); 2265 #ifdef TO_DO_LIST 2266 if (Adapter->bInHctTest) 2267 pHalData->ReceiveConfig = 2268 pHalData->CSMethod | 2269 /* accept management/data */ 2270 RCR_AMF | RCR_ADF | 2271 /* accept control frame for SW 2272 * AP needs PS-poll 2273 */ 2274 RCR_ACF | 2275 /* accept BC/MC/UC */ 2276 RCR_AB | RCR_AM | RCR_APM | 2277 /* accept ICV/CRC error 2278 * packet 2279 */ 2280 RCR_AICV | RCR_ACRC32 | 2281 /* Max DMA Burst Size per Tx 2282 * DMA Burst, 7: unlimited. 2283 */ 2284 ((u32)7 << RCR_MXDMA_OFFSET) | 2285 /* Rx FIFO Threshold, 2286 * 7: No Rx threshold. 2287 */ 2288 (pHalData->EarlyRxThreshold << RCR_FIFO_OFFSET) | 2289 (pHalData->EarlyRxThreshold == 7 ? RCR_OnlyErlPkt : 0); 2290 else 2291 2292 #endif 2293 priv->ReceiveConfig = 2294 /* accept management/data */ 2295 RCR_AMF | RCR_ADF | 2296 /* accept control frame for SW AP needs PS-poll */ 2297 RCR_ACF | 2298 /* accept BC/MC/UC */ 2299 RCR_AB | RCR_AM | RCR_APM | 2300 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */ 2301 ((u32)7 << RCR_MXDMA_OFFSET) | 2302 /* Rx FIFO Threshold, 7: No Rx threshold. */ 2303 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) | 2304 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0); 2305 2306 priv->AcmControl = 0; 2307 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL); 2308 2309 /* rx related queue */ 2310 skb_queue_head_init(&priv->rx_queue); 2311 skb_queue_head_init(&priv->skb_queue); 2312 2313 /* Tx related queue */ 2314 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2315 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]); 2316 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2317 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]); 2318 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2319 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]); 2320 priv->rf_set_chan = rtl8192_phy_SwChnl; 2321 } 2322 2323 /* init lock here */ 2324 static void rtl8192_init_priv_lock(struct r8192_priv *priv) 2325 { 2326 spin_lock_init(&priv->tx_lock); 2327 spin_lock_init(&priv->irq_lock); 2328 mutex_init(&priv->wx_mutex); 2329 mutex_init(&priv->mutex); 2330 } 2331 2332 static void rtl819x_watchdog_wqcallback(struct work_struct *work); 2333 2334 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv); 2335 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */ 2336 #define DRV_NAME "wlan0" 2337 static void rtl8192_init_priv_task(struct net_device *dev) 2338 { 2339 struct r8192_priv *priv = ieee80211_priv(dev); 2340 2341 2342 INIT_WORK(&priv->reset_wq, rtl8192_restart); 2343 2344 INIT_DELAYED_WORK(&priv->watch_dog_wq, 2345 rtl819x_watchdog_wqcallback); 2346 INIT_DELAYED_WORK(&priv->txpower_tracking_wq, 2347 dm_txpower_trackingcallback); 2348 INIT_DELAYED_WORK(&priv->rfpath_check_wq, 2349 dm_rf_pathcheck_workitemcallback); 2350 INIT_DELAYED_WORK(&priv->update_beacon_wq, 2351 rtl8192_update_beacon); 2352 INIT_DELAYED_WORK(&priv->initialgain_operate_wq, 2353 InitialGainOperateWorkItemCallBack); 2354 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate); 2355 2356 tasklet_init(&priv->irq_rx_tasklet, 2357 (void(*)(unsigned long))rtl8192_irq_rx_tasklet, 2358 (unsigned long)priv); 2359 } 2360 2361 static void rtl8192_get_eeprom_size(struct net_device *dev) 2362 { 2363 u16 curCR = 0; 2364 struct r8192_priv *priv = ieee80211_priv(dev); 2365 2366 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); 2367 read_nic_word_E(dev, EPROM_CMD, &curCR); 2368 RT_TRACE(COMP_EPROM, 2369 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR); 2370 /* whether need I consider BIT(5?) */ 2371 priv->epromtype = 2372 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46; 2373 RT_TRACE(COMP_EPROM, 2374 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype); 2375 } 2376 2377 /* used to swap endian. as ntohl & htonl are not necessary 2378 * to swap endian, so use this instead. 2379 */ 2380 static inline u16 endian_swap(u16 *data) 2381 { 2382 u16 tmp = *data; 2383 *data = (tmp >> 8) | (tmp << 8); 2384 return *data; 2385 } 2386 2387 static int rtl8192_read_eeprom_info(struct net_device *dev) 2388 { 2389 u16 wEPROM_ID = 0; 2390 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02}; 2391 u8 bLoad_From_EEPOM = false; 2392 struct r8192_priv *priv = ieee80211_priv(dev); 2393 u16 tmpValue = 0; 2394 int i; 2395 int ret; 2396 2397 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); 2398 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */ 2399 if (ret < 0) 2400 return ret; 2401 wEPROM_ID = (u16)ret; 2402 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID); 2403 2404 if (wEPROM_ID != RTL8190_EEPROM_ID) 2405 RT_TRACE(COMP_ERR, 2406 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n", 2407 wEPROM_ID, RTL8190_EEPROM_ID); 2408 else 2409 bLoad_From_EEPOM = true; 2410 2411 if (bLoad_From_EEPOM) { 2412 tmpValue = eprom_read(dev, EEPROM_VID >> 1); 2413 ret = eprom_read(dev, EEPROM_VID >> 1); 2414 if (ret < 0) 2415 return ret; 2416 tmpValue = (u16)ret; 2417 priv->eeprom_vid = endian_swap(&tmpValue); 2418 ret = eprom_read(dev, EEPROM_PID >> 1); 2419 if (ret < 0) 2420 return ret; 2421 priv->eeprom_pid = (u16)ret; 2422 ret = eprom_read(dev, EEPROM_ChannelPlan >> 1); 2423 if (ret < 0) 2424 return ret; 2425 tmpValue = (u16)ret; 2426 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8; 2427 priv->btxpowerdata_readfromEEPORM = true; 2428 ret = eprom_read(dev, (EEPROM_Customer_ID >> 1)) >> 8; 2429 if (ret < 0) 2430 return ret; 2431 priv->eeprom_CustomerID = (u16)ret; 2432 } else { 2433 priv->eeprom_vid = 0; 2434 priv->eeprom_pid = 0; 2435 priv->card_8192_version = VERSION_819xU_B; 2436 priv->eeprom_ChannelPlan = 0; 2437 priv->eeprom_CustomerID = 0; 2438 } 2439 RT_TRACE(COMP_EPROM, 2440 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n", 2441 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID, 2442 priv->eeprom_ChannelPlan); 2443 /* set channelplan from eeprom */ 2444 priv->ChannelPlan = priv->eeprom_ChannelPlan; 2445 if (bLoad_From_EEPOM) { 2446 int i; 2447 2448 for (i = 0; i < 6; i += 2) { 2449 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1)); 2450 if (ret < 0) 2451 return ret; 2452 *(u16 *)(&dev->dev_addr[i]) = (u16)ret; 2453 } 2454 } else { 2455 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6); 2456 /* should I set IDR0 here? */ 2457 } 2458 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr); 2459 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */ 2460 priv->rf_chip = RF_8256; 2461 2462 if (priv->card_8192_version == (u8)VERSION_819xU_A) { 2463 /* read Tx power gain offset of legacy OFDM to HT rate */ 2464 if (bLoad_From_EEPOM) { 2465 ret = eprom_read(dev, (EEPROM_TxPowerDiff >> 1)); 2466 if (ret < 0) 2467 return ret; 2468 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8; 2469 } else 2470 priv->EEPROMTxPowerDiff = EEPROM_Default_TxPower; 2471 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff); 2472 /* read ThermalMeter from EEPROM */ 2473 if (bLoad_From_EEPOM) { 2474 ret = eprom_read(dev, (EEPROM_ThermalMeter >> 1)); 2475 if (ret < 0) 2476 return ret; 2477 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff); 2478 } else 2479 priv->EEPROMThermalMeter = EEPROM_Default_ThermalMeter; 2480 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter); 2481 /* for tx power track */ 2482 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100; 2483 /* read antenna tx power offset of B/C/D to A from EEPROM */ 2484 if (bLoad_From_EEPOM) { 2485 ret = eprom_read(dev, (EEPROM_PwDiff >> 1)); 2486 if (ret < 0) 2487 return ret; 2488 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8; 2489 } else 2490 priv->EEPROMPwDiff = EEPROM_Default_PwDiff; 2491 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff); 2492 /* Read CrystalCap from EEPROM */ 2493 if (bLoad_From_EEPOM) { 2494 ret = eprom_read(dev, (EEPROM_CrystalCap >> 1)); 2495 if (ret < 0) 2496 return ret; 2497 priv->EEPROMCrystalCap = (u16)ret & 0x0f; 2498 } else 2499 priv->EEPROMCrystalCap = EEPROM_Default_CrystalCap; 2500 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap); 2501 /* get per-channel Tx power level */ 2502 if (bLoad_From_EEPOM) { 2503 ret = eprom_read(dev, (EEPROM_TxPwIndex_Ver >> 1)); 2504 if (ret < 0) 2505 return ret; 2506 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8; 2507 } else 2508 priv->EEPROM_Def_Ver = 1; 2509 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver); 2510 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */ 2511 int i; 2512 2513 if (bLoad_From_EEPOM) { 2514 ret = eprom_read(dev, (EEPROM_TxPwIndex_CCK >> 1)); 2515 if (ret < 0) 2516 return ret; 2517 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff) >> 8; 2518 } else 2519 priv->EEPROMTxPowerLevelCCK = 0x10; 2520 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK); 2521 for (i = 0; i < 3; i++) { 2522 if (bLoad_From_EEPOM) { 2523 ret = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G + i) >> 1); 2524 if (ret < 0) 2525 return ret; 2526 if (((EEPROM_TxPwIndex_OFDM_24G + i) % 2) == 0) 2527 tmpValue = (u16)ret & 0x00ff; 2528 else 2529 tmpValue = ((u16)ret & 0xff00) >> 8; 2530 } else { 2531 tmpValue = 0x10; 2532 } 2533 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue; 2534 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK); 2535 } 2536 } else if (priv->EEPROM_Def_Ver == 1) { 2537 if (bLoad_From_EEPOM) { 2538 ret = eprom_read(dev, EEPROM_TxPwIndex_CCK_V1 >> 1); 2539 if (ret < 0) 2540 return ret; 2541 tmpValue = ((u16)ret & 0xff00) >> 8; 2542 } else { 2543 tmpValue = 0x10; 2544 } 2545 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue; 2546 2547 if (bLoad_From_EEPOM) { 2548 ret = eprom_read(dev, (EEPROM_TxPwIndex_CCK_V1 + 2) >> 1); 2549 if (ret < 0) 2550 return ret; 2551 tmpValue = (u16)ret; 2552 } else 2553 tmpValue = 0x1010; 2554 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue; 2555 if (bLoad_From_EEPOM) 2556 tmpValue = eprom_read(dev, 2557 EEPROM_TxPwIndex_OFDM_24G_V1 >> 1); 2558 else 2559 tmpValue = 0x1010; 2560 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue; 2561 if (bLoad_From_EEPOM) 2562 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G_V1 + 2) >> 1); 2563 else 2564 tmpValue = 0x10; 2565 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue; 2566 } /* endif EEPROM_Def_Ver == 1 */ 2567 2568 /* update HAL variables */ 2569 for (i = 0; i < 14; i++) { 2570 if (i <= 3) 2571 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0]; 2572 else if (i >= 4 && i <= 9) 2573 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1]; 2574 else 2575 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2]; 2576 } 2577 2578 for (i = 0; i < 14; i++) { 2579 if (priv->EEPROM_Def_Ver == 0) { 2580 if (i <= 3) 2581 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); 2582 else if (i >= 4 && i <= 9) 2583 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK; 2584 else 2585 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); 2586 } else if (priv->EEPROM_Def_Ver == 1) { 2587 if (i <= 3) 2588 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0]; 2589 else if (i >= 4 && i <= 9) 2590 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1]; 2591 else 2592 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2]; 2593 } 2594 } 2595 priv->TxPowerDiff = priv->EEPROMPwDiff; 2596 /* Antenna B gain offset to antenna A, bit0~3 */ 2597 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf); 2598 /* Antenna C gain offset to antenna A, bit4~7 */ 2599 priv->AntennaTxPwDiff[1] = 2600 (priv->EEPROMTxPowerDiff & 0xf0) >> 4; 2601 /* CrystalCap, bit12~15 */ 2602 priv->CrystalCap = priv->EEPROMCrystalCap; 2603 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2 2604 * 92U does not enable TX power tracking. 2605 */ 2606 priv->ThermalMeter[0] = priv->EEPROMThermalMeter; 2607 } /* end if VersionID == VERSION_819xU_A */ 2608 2609 /* for dlink led */ 2610 switch (priv->eeprom_CustomerID) { 2611 case EEPROM_CID_RUNTOP: 2612 priv->CustomerID = RT_CID_819x_RUNTOP; 2613 break; 2614 2615 case EEPROM_CID_DLINK: 2616 priv->CustomerID = RT_CID_DLINK; 2617 break; 2618 2619 default: 2620 priv->CustomerID = RT_CID_DEFAULT; 2621 break; 2622 } 2623 2624 switch (priv->CustomerID) { 2625 case RT_CID_819x_RUNTOP: 2626 priv->LedStrategy = SW_LED_MODE2; 2627 break; 2628 2629 case RT_CID_DLINK: 2630 priv->LedStrategy = SW_LED_MODE4; 2631 break; 2632 2633 default: 2634 priv->LedStrategy = SW_LED_MODE0; 2635 break; 2636 } 2637 2638 2639 if (priv->rf_type == RF_1T2R) 2640 RT_TRACE(COMP_EPROM, "\n1T2R config\n"); 2641 else 2642 RT_TRACE(COMP_EPROM, "\n2T4R config\n"); 2643 2644 /* We can only know RF type in the function. So we have to init 2645 * DIG RATR table again. 2646 */ 2647 init_rate_adaptive(dev); 2648 2649 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__); 2650 2651 return 0; 2652 } 2653 2654 static short rtl8192_get_channel_map(struct net_device *dev) 2655 { 2656 struct r8192_priv *priv = ieee80211_priv(dev); 2657 2658 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) { 2659 netdev_err(dev, 2660 "rtl8180_init: Error channel plan! Set to default.\n"); 2661 priv->ChannelPlan = 0; 2662 } 2663 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan); 2664 2665 rtl819x_set_channel_map(priv->ChannelPlan, priv); 2666 return 0; 2667 } 2668 2669 static short rtl8192_init(struct net_device *dev) 2670 { 2671 struct r8192_priv *priv = ieee80211_priv(dev); 2672 int err; 2673 2674 memset(&(priv->stats), 0, sizeof(struct Stats)); 2675 memset(priv->txqueue_to_outpipemap, 0, 9); 2676 #ifdef PIPE12 2677 { 2678 int i = 0; 2679 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5}; 2680 2681 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); 2682 } 2683 #else 2684 { 2685 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4}; 2686 2687 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); 2688 } 2689 #endif 2690 rtl8192_init_priv_variable(dev); 2691 rtl8192_init_priv_lock(priv); 2692 rtl8192_init_priv_task(dev); 2693 rtl8192_get_eeprom_size(dev); 2694 err = rtl8192_read_eeprom_info(dev); 2695 if (err) { 2696 DMESG("Reading EEPROM info failed"); 2697 return err; 2698 } 2699 rtl8192_get_channel_map(dev); 2700 init_hal_dm(dev); 2701 timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0); 2702 if (rtl8192_usb_initendpoints(dev) != 0) { 2703 DMESG("Endopoints initialization failed"); 2704 return -ENOMEM; 2705 } 2706 2707 return 0; 2708 } 2709 2710 /****************************************************************************** 2711 *function: This function actually only set RRSR, RATR and BW_OPMODE registers 2712 * not to do all the hw config as its name says 2713 * input: net_device dev 2714 * output: none 2715 * return: none 2716 * notice: This part need to modified according to the rate set we filtered 2717 * ****************************************************************************/ 2718 static void rtl8192_hwconfig(struct net_device *dev) 2719 { 2720 u32 regRATR = 0, regRRSR = 0; 2721 u8 regBwOpMode = 0, regTmp = 0; 2722 struct r8192_priv *priv = ieee80211_priv(dev); 2723 u32 ratr_value = 0; 2724 2725 /* Set RRSR, RATR, and BW_OPMODE registers */ 2726 switch (priv->ieee80211->mode) { 2727 case WIRELESS_MODE_B: 2728 regBwOpMode = BW_OPMODE_20MHZ; 2729 regRATR = RATE_ALL_CCK; 2730 regRRSR = RATE_ALL_CCK; 2731 break; 2732 case WIRELESS_MODE_A: 2733 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ; 2734 regRATR = RATE_ALL_OFDM_AG; 2735 regRRSR = RATE_ALL_OFDM_AG; 2736 break; 2737 case WIRELESS_MODE_G: 2738 regBwOpMode = BW_OPMODE_20MHZ; 2739 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2740 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2741 break; 2742 case WIRELESS_MODE_AUTO: 2743 #ifdef TO_DO_LIST 2744 if (Adapter->bInHctTest) { 2745 regBwOpMode = BW_OPMODE_20MHZ; 2746 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2747 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2748 } else 2749 #endif 2750 { 2751 regBwOpMode = BW_OPMODE_20MHZ; 2752 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | 2753 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; 2754 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2755 } 2756 break; 2757 case WIRELESS_MODE_N_24G: 2758 /* It support CCK rate by default. CCK rate will be filtered 2759 * out only when associated AP does not support it. 2760 */ 2761 regBwOpMode = BW_OPMODE_20MHZ; 2762 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | 2763 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; 2764 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2765 break; 2766 case WIRELESS_MODE_N_5G: 2767 regBwOpMode = BW_OPMODE_5G; 2768 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | 2769 RATE_ALL_OFDM_2SS; 2770 regRRSR = RATE_ALL_OFDM_AG; 2771 break; 2772 } 2773 2774 write_nic_byte(dev, BW_OPMODE, regBwOpMode); 2775 ratr_value = regRATR; 2776 if (priv->rf_type == RF_1T2R) 2777 ratr_value &= ~(RATE_ALL_OFDM_2SS); 2778 write_nic_dword(dev, RATR0, ratr_value); 2779 write_nic_byte(dev, UFWP, 1); 2780 read_nic_byte(dev, 0x313, ®Tmp); 2781 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff); 2782 write_nic_dword(dev, RRSR, regRRSR); 2783 2784 /* Set Retry Limit here */ 2785 write_nic_word(dev, RETRY_LIMIT, 2786 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT | 2787 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT); 2788 /* Set Contention Window here */ 2789 2790 /* Set Tx AGC */ 2791 2792 /* Set Tx Antenna including Feedback control */ 2793 2794 /* Set Auto Rate fallback control */ 2795 } 2796 2797 2798 /* InitializeAdapter and PhyCfg */ 2799 static bool rtl8192_adapter_start(struct net_device *dev) 2800 { 2801 struct r8192_priv *priv = ieee80211_priv(dev); 2802 u32 dwRegRead = 0; 2803 bool init_status = true; 2804 u8 SECR_value = 0x0; 2805 u8 tmp; 2806 2807 RT_TRACE(COMP_INIT, "====>%s()\n", __func__); 2808 priv->Rf_Mode = RF_OP_By_SW_3wire; 2809 /* for ASIC power on sequence */ 2810 write_nic_byte_E(dev, 0x5f, 0x80); 2811 mdelay(50); 2812 write_nic_byte_E(dev, 0x5f, 0xf0); 2813 write_nic_byte_E(dev, 0x5d, 0x00); 2814 write_nic_byte_E(dev, 0x5e, 0x80); 2815 write_nic_byte(dev, 0x17, 0x37); 2816 mdelay(10); 2817 priv->pFirmware->firmware_status = FW_STATUS_0_INIT; 2818 /* config CPUReset Register */ 2819 /* Firmware Reset or not? */ 2820 read_nic_dword(dev, CPU_GEN, &dwRegRead); 2821 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT) 2822 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */ 2823 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY) 2824 dwRegRead |= CPU_GEN_FIRMWARE_RESET; 2825 else 2826 RT_TRACE(COMP_ERR, 2827 "ERROR in %s(): undefined firmware state(%d)\n", 2828 __func__, priv->pFirmware->firmware_status); 2829 2830 write_nic_dword(dev, CPU_GEN, dwRegRead); 2831 /* config BB. */ 2832 rtl8192_BBConfig(dev); 2833 2834 /* Loopback mode or not */ 2835 priv->LoopbackMode = RTL819xU_NO_LOOPBACK; 2836 2837 read_nic_dword(dev, CPU_GEN, &dwRegRead); 2838 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK) 2839 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) | 2840 CPU_GEN_NO_LOOPBACK_SET; 2841 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK) 2842 dwRegRead |= CPU_CCK_LOOPBACK; 2843 else 2844 RT_TRACE(COMP_ERR, 2845 "Serious error in %s(): wrong loopback mode setting(%d)\n", 2846 __func__, priv->LoopbackMode); 2847 2848 write_nic_dword(dev, CPU_GEN, dwRegRead); 2849 2850 /* after reset cpu, we need wait for a seconds to write in register. */ 2851 udelay(500); 2852 2853 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */ 2854 read_nic_byte_E(dev, 0x5f, &tmp); 2855 write_nic_byte_E(dev, 0x5f, tmp | 0x20); 2856 2857 /* Set Hardware */ 2858 rtl8192_hwconfig(dev); 2859 2860 /* turn on Tx/Rx */ 2861 write_nic_byte(dev, CMDR, CR_RE | CR_TE); 2862 2863 /* set IDR0 here */ 2864 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]); 2865 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]); 2866 2867 /* set RCR */ 2868 write_nic_dword(dev, RCR, priv->ReceiveConfig); 2869 2870 /* Initialize Number of Reserved Pages in Firmware Queue */ 2871 write_nic_dword(dev, RQPN1, 2872 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT | 2873 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT | 2874 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT | 2875 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT); 2876 write_nic_dword(dev, RQPN2, 2877 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT | 2878 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT); 2879 write_nic_dword(dev, RQPN3, 2880 APPLIED_RESERVED_QUEUE_IN_FW | 2881 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT); 2882 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK)); 2883 2884 /* Set AckTimeout */ 2885 /* TODO: (it value is only for FPGA version). need to be changed!! */ 2886 write_nic_byte(dev, ACK_TIMEOUT, 0x30); 2887 2888 if (priv->ResetProgress == RESET_TYPE_NORESET) 2889 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode); 2890 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2891 CamResetAllEntry(dev); 2892 SECR_value |= SCR_TxEncEnable; 2893 SECR_value |= SCR_RxDecEnable; 2894 SECR_value |= SCR_NoSKMC; 2895 write_nic_byte(dev, SECR, SECR_value); 2896 } 2897 2898 /* Beacon related */ 2899 write_nic_word(dev, ATIMWND, 2); 2900 write_nic_word(dev, BCN_INTERVAL, 100); 2901 2902 #define DEFAULT_EDCA 0x005e4332 2903 { 2904 int i; 2905 2906 for (i = 0; i < QOS_QUEUE_NUM; i++) 2907 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA); 2908 } 2909 2910 rtl8192_phy_configmac(dev); 2911 2912 if (priv->card_8192_version == (u8)VERSION_819xU_A) { 2913 rtl8192_phy_getTxPower(dev); 2914 rtl8192_phy_setTxPower(dev, priv->chan); 2915 } 2916 2917 /* Firmware download */ 2918 init_status = init_firmware(dev); 2919 if (!init_status) { 2920 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n", 2921 __func__); 2922 return init_status; 2923 } 2924 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__); 2925 2926 #ifdef TO_DO_LIST 2927 if (Adapter->ResetProgress == RESET_TYPE_NORESET) { 2928 if (pMgntInfo->RegRfOff) { /* User disable RF via registry. */ 2929 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD, 2930 ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n")); 2931 MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW); 2932 /* Those actions will be discard in MgntActSet_RF_State 2933 * because of the same state 2934 */ 2935 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++) 2936 PHY_SetRFReg(Adapter, 2937 (RF90_RADIO_PATH_E)eRFPath, 2938 0x4, 0xC00, 0x0); 2939 } else if (pMgntInfo->RfOffReason > RF_CHANGE_BY_PS) { 2940 /* H/W or S/W RF OFF before sleep. */ 2941 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD, 2942 ("InitializeAdapter819xUsb(): Turn off RF for RfOffReason(%d) ----------\n", 2943 pMgntInfo->RfOffReason)); 2944 MgntActSet_RF_State(Adapter, 2945 eRfOff, 2946 pMgntInfo->RfOffReason); 2947 } else { 2948 pHalData->eRFPowerState = eRfOn; 2949 pMgntInfo->RfOffReason = 0; 2950 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD, 2951 ("InitializeAdapter819xUsb(): RF is on ----------\n")); 2952 } 2953 } else { 2954 if (pHalData->eRFPowerState == eRfOff) { 2955 MgntActSet_RF_State(Adapter, 2956 eRfOff, 2957 pMgntInfo->RfOffReason); 2958 /* Those actions will be discard in MgntActSet_RF_State 2959 * because of the same state 2960 */ 2961 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++) 2962 PHY_SetRFReg(Adapter, 2963 (RF90_RADIO_PATH_E)eRFPath, 2964 0x4, 0xC00, 0x0); 2965 } 2966 } 2967 #endif 2968 /* config RF. */ 2969 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2970 rtl8192_phy_RFConfig(dev); 2971 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__); 2972 } 2973 2974 2975 if (priv->ieee80211->FwRWRF) 2976 /* We can force firmware to do RF-R/W */ 2977 priv->Rf_Mode = RF_OP_By_FW; 2978 else 2979 priv->Rf_Mode = RF_OP_By_SW_3wire; 2980 2981 2982 rtl8192_phy_updateInitGain(dev); 2983 /*--set CCK and OFDM Block "ON"--*/ 2984 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1); 2985 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1); 2986 2987 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2988 /* if D or C cut */ 2989 u8 tmpvalue; 2990 2991 read_nic_byte(dev, 0x301, &tmpvalue); 2992 if (tmpvalue == 0x03) { 2993 priv->bDcut = true; 2994 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n"); 2995 } else { 2996 priv->bDcut = false; 2997 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n"); 2998 } 2999 dm_initialize_txpower_tracking(dev); 3000 3001 if (priv->bDcut) { 3002 u32 i, TempCCk; 3003 u32 tmpRegA = rtl8192_QueryBBReg(dev, 3004 rOFDM0_XATxIQImbalance, 3005 bMaskDWord); 3006 3007 for (i = 0; i < TxBBGainTableLength; i++) { 3008 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) { 3009 priv->rfa_txpowertrackingindex = (u8)i; 3010 priv->rfa_txpowertrackingindex_real = 3011 (u8)i; 3012 priv->rfa_txpowertracking_default = 3013 priv->rfa_txpowertrackingindex; 3014 break; 3015 } 3016 } 3017 3018 TempCCk = rtl8192_QueryBBReg(dev, 3019 rCCK0_TxFilter1, 3020 bMaskByte2); 3021 3022 for (i = 0; i < CCKTxBBGainTableLength; i++) { 3023 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) { 3024 priv->cck_present_attenuation_20Mdefault = (u8)i; 3025 break; 3026 } 3027 } 3028 priv->cck_present_attenuation_40Mdefault = 0; 3029 priv->cck_present_attenuation_difference = 0; 3030 priv->cck_present_attenuation = 3031 priv->cck_present_attenuation_20Mdefault; 3032 } 3033 } 3034 write_nic_byte(dev, 0x87, 0x0); 3035 3036 3037 return init_status; 3038 } 3039 3040 /* this configures registers for beacon tx and enables it via 3041 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might 3042 * be used to stop beacon transmission 3043 */ 3044 /*************************************************************************** 3045 * -------------------------------NET STUFF--------------------------- 3046 ***************************************************************************/ 3047 3048 static struct net_device_stats *rtl8192_stats(struct net_device *dev) 3049 { 3050 struct r8192_priv *priv = ieee80211_priv(dev); 3051 3052 return &priv->ieee80211->stats; 3053 } 3054 3055 static bool HalTxCheckStuck819xUsb(struct net_device *dev) 3056 { 3057 struct r8192_priv *priv = ieee80211_priv(dev); 3058 u16 RegTxCounter; 3059 bool bStuck = false; 3060 3061 read_nic_word(dev, 0x128, &RegTxCounter); 3062 RT_TRACE(COMP_RESET, 3063 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__, 3064 RegTxCounter, priv->TxCounter); 3065 if (priv->TxCounter == RegTxCounter) 3066 bStuck = true; 3067 3068 priv->TxCounter = RegTxCounter; 3069 3070 return bStuck; 3071 } 3072 3073 /* 3074 * <Assumption: RT_TX_SPINLOCK is acquired.> 3075 * First added: 2006.11.19 by emily 3076 */ 3077 static RESET_TYPE TxCheckStuck(struct net_device *dev) 3078 { 3079 struct r8192_priv *priv = ieee80211_priv(dev); 3080 u8 QueueID; 3081 bool bCheckFwTxCnt = false; 3082 3083 /* Decide such threshold according to current power save mode */ 3084 3085 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) { 3086 if (QueueID == TXCMD_QUEUE) 3087 continue; 3088 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0)) 3089 continue; 3090 3091 bCheckFwTxCnt = true; 3092 } 3093 if (bCheckFwTxCnt) { 3094 if (HalTxCheckStuck819xUsb(dev)) { 3095 RT_TRACE(COMP_RESET, 3096 "%s: Fw indicates no Tx condition!\n", 3097 __func__); 3098 return RESET_TYPE_SILENT; 3099 } 3100 } 3101 return RESET_TYPE_NORESET; 3102 } 3103 3104 static bool HalRxCheckStuck819xUsb(struct net_device *dev) 3105 { 3106 u16 RegRxCounter; 3107 struct r8192_priv *priv = ieee80211_priv(dev); 3108 bool bStuck = false; 3109 static u8 rx_chk_cnt; 3110 3111 read_nic_word(dev, 0x130, &RegRxCounter); 3112 RT_TRACE(COMP_RESET, 3113 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__, 3114 RegRxCounter, priv->RxCounter); 3115 /* If rssi is small, we should check rx for long time because of bad rx. 3116 * or maybe it will continuous silent reset every 2 seconds. 3117 */ 3118 rx_chk_cnt++; 3119 if (priv->undecorated_smoothed_pwdb >= (RateAdaptiveTH_High + 5)) { 3120 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */ 3121 } else if (priv->undecorated_smoothed_pwdb < (RateAdaptiveTH_High + 5) && 3122 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_40M) || 3123 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_20M))) { 3124 if (rx_chk_cnt < 2) 3125 return bStuck; 3126 3127 rx_chk_cnt = 0; 3128 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_40M) || 3129 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_20M)) && 3130 priv->undecorated_smoothed_pwdb >= VeryLowRSSI) { 3131 if (rx_chk_cnt < 4) 3132 return bStuck; 3133 3134 rx_chk_cnt = 0; 3135 } else { 3136 if (rx_chk_cnt < 8) 3137 return bStuck; 3138 3139 rx_chk_cnt = 0; 3140 } 3141 3142 if (priv->RxCounter == RegRxCounter) 3143 bStuck = true; 3144 3145 priv->RxCounter = RegRxCounter; 3146 3147 return bStuck; 3148 } 3149 3150 static RESET_TYPE RxCheckStuck(struct net_device *dev) 3151 { 3152 struct r8192_priv *priv = ieee80211_priv(dev); 3153 bool bRxCheck = false; 3154 3155 if (priv->IrpPendingCount > 1) 3156 bRxCheck = true; 3157 3158 if (bRxCheck) { 3159 if (HalRxCheckStuck819xUsb(dev)) { 3160 RT_TRACE(COMP_RESET, "RxStuck Condition\n"); 3161 return RESET_TYPE_SILENT; 3162 } 3163 } 3164 return RESET_TYPE_NORESET; 3165 } 3166 3167 3168 /** 3169 * This function is called by Checkforhang to check whether we should 3170 * ask OS to reset driver 3171 * 3172 * \param pAdapter The adapter context for this miniport 3173 * 3174 * Note:NIC with USB interface sholud not call this function because we 3175 * cannot scan descriptor to judge whether there is tx stuck. 3176 * Note: This function may be required to be rewrite for Vista OS. 3177 * <<<Assumption: Tx spinlock has been acquired >>> 3178 * 3179 * 8185 and 8185b does not implement this function. 3180 */ 3181 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev) 3182 { 3183 struct r8192_priv *priv = ieee80211_priv(dev); 3184 RESET_TYPE TxResetType = RESET_TYPE_NORESET; 3185 RESET_TYPE RxResetType = RESET_TYPE_NORESET; 3186 RT_RF_POWER_STATE rfState; 3187 3188 rfState = priv->ieee80211->eRFPowerState; 3189 3190 TxResetType = TxCheckStuck(dev); 3191 if (rfState != eRfOff || 3192 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) { 3193 /* If driver is in the status of firmware download failure, 3194 * driver skips RF initialization and RF is in turned off 3195 * state. Driver should check whether Rx stuck and do silent 3196 * reset. And if driver is in firmware download failure status, 3197 * driver should initialize RF in the following silent reset 3198 * procedure 3199 * 3200 * Driver should not check RX stuck in IBSS mode because it is 3201 * required to set Check BSSID in order to send beacon, 3202 * however, if check BSSID is set, STA cannot hear any packet 3203 * at all. 3204 */ 3205 RxResetType = RxCheckStuck(dev); 3206 } 3207 if (TxResetType == RESET_TYPE_NORMAL || 3208 RxResetType == RESET_TYPE_NORMAL) { 3209 return RESET_TYPE_NORMAL; 3210 } else if (TxResetType == RESET_TYPE_SILENT || 3211 RxResetType == RESET_TYPE_SILENT) { 3212 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__); 3213 return RESET_TYPE_SILENT; 3214 } else { 3215 return RESET_TYPE_NORESET; 3216 } 3217 } 3218 3219 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv); 3220 static int _rtl8192_up(struct net_device *dev); 3221 static int rtl8192_close(struct net_device *dev); 3222 3223 3224 3225 static void CamRestoreAllEntry(struct net_device *dev) 3226 { 3227 u8 EntryId = 0; 3228 struct r8192_priv *priv = ieee80211_priv(dev); 3229 u8 *MacAddr = priv->ieee80211->current_network.bssid; 3230 3231 static u8 CAM_CONST_ADDR[4][6] = { 3232 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 3233 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, 3234 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, 3235 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} }; 3236 static u8 CAM_CONST_BROAD[] = { 3237 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3238 3239 RT_TRACE(COMP_SEC, "%s:\n", __func__); 3240 3241 3242 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) || 3243 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) { 3244 for (EntryId = 0; EntryId < 4; EntryId++) { 3245 MacAddr = CAM_CONST_ADDR[EntryId]; 3246 setKey(dev, EntryId, EntryId, 3247 priv->ieee80211->pairwise_key_type, 3248 MacAddr, 0, NULL); 3249 } 3250 3251 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) { 3252 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3253 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3254 (u8 *)dev->dev_addr, 0, NULL); 3255 else 3256 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3257 MacAddr, 0, NULL); 3258 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) { 3259 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3260 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3261 (u8 *)dev->dev_addr, 0, NULL); 3262 else 3263 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3264 MacAddr, 0, NULL); 3265 } 3266 3267 3268 3269 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) { 3270 MacAddr = CAM_CONST_BROAD; 3271 for (EntryId = 1; EntryId < 4; EntryId++) { 3272 setKey(dev, EntryId, EntryId, 3273 priv->ieee80211->group_key_type, 3274 MacAddr, 0, NULL); 3275 } 3276 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3277 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3278 CAM_CONST_ADDR[0], 0, NULL); 3279 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) { 3280 MacAddr = CAM_CONST_BROAD; 3281 for (EntryId = 1; EntryId < 4; EntryId++) { 3282 setKey(dev, EntryId, EntryId, 3283 priv->ieee80211->group_key_type, 3284 MacAddr, 0, NULL); 3285 } 3286 3287 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3288 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3289 CAM_CONST_ADDR[0], 0, NULL); 3290 } 3291 } 3292 3293 /* This function is used to fix Tx/Rx stop bug temporarily. 3294 * This function will do "system reset" to NIC when Tx or Rx is stuck. 3295 * The method checking Tx/Rx stuck of this function is supported by FW, 3296 * which reports Tx and Rx counter to register 0x128 and 0x130. 3297 */ 3298 static void rtl819x_ifsilentreset(struct net_device *dev) 3299 { 3300 struct r8192_priv *priv = ieee80211_priv(dev); 3301 u8 reset_times = 0; 3302 int reset_status = 0; 3303 struct ieee80211_device *ieee = priv->ieee80211; 3304 3305 3306 /* If we need to check CCK stop, please uncomment this line. */ 3307 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */ 3308 3309 if (priv->ResetProgress == RESET_TYPE_NORESET) { 3310 RESET_START: 3311 3312 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n"); 3313 3314 /* Set the variable for reset. */ 3315 priv->ResetProgress = RESET_TYPE_SILENT; 3316 mutex_lock(&priv->wx_mutex); 3317 if (priv->up == 0) { 3318 RT_TRACE(COMP_ERR, 3319 "%s():the driver is not up! return\n", 3320 __func__); 3321 mutex_unlock(&priv->wx_mutex); 3322 return; 3323 } 3324 priv->up = 0; 3325 RT_TRACE(COMP_RESET, 3326 "%s():======>start to down the driver\n", 3327 __func__); 3328 3329 rtl8192_rtx_disable(dev); 3330 rtl8192_cancel_deferred_work(priv); 3331 deinit_hal_dm(dev); 3332 del_timer_sync(&priv->watch_dog_timer); 3333 3334 ieee->sync_scan_hurryup = 1; 3335 if (ieee->state == IEEE80211_LINKED) { 3336 mutex_lock(&ieee->wx_mutex); 3337 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n"); 3338 ieee80211_stop_send_beacons(priv->ieee80211); 3339 del_timer_sync(&ieee->associate_timer); 3340 cancel_delayed_work(&ieee->associate_retry_wq); 3341 ieee80211_stop_scan(ieee); 3342 netif_carrier_off(dev); 3343 mutex_unlock(&ieee->wx_mutex); 3344 } else { 3345 netdev_dbg(dev, "ieee->state is NOT LINKED\n"); 3346 ieee80211_softmac_stop_protocol(priv->ieee80211); 3347 } 3348 mutex_unlock(&priv->wx_mutex); 3349 RT_TRACE(COMP_RESET, 3350 "%s():<==========down process is finished\n", 3351 __func__); 3352 RT_TRACE(COMP_RESET, 3353 "%s():===========>start up the driver\n", 3354 __func__); 3355 reset_status = _rtl8192_up(dev); 3356 3357 RT_TRACE(COMP_RESET, 3358 "%s():<===========up process is finished\n", 3359 __func__); 3360 if (reset_status == -EAGAIN) { 3361 if (reset_times < 3) { 3362 reset_times++; 3363 goto RESET_START; 3364 } else { 3365 RT_TRACE(COMP_ERR, 3366 " ERR!!! %s(): Reset Failed!!\n", 3367 __func__); 3368 } 3369 } 3370 ieee->is_silent_reset = 1; 3371 EnableHWSecurityConfig8192(dev); 3372 if (ieee->state == IEEE80211_LINKED && 3373 ieee->iw_mode == IW_MODE_INFRA) { 3374 ieee->set_chan(ieee->dev, 3375 ieee->current_network.channel); 3376 3377 queue_work(ieee->wq, &ieee->associate_complete_wq); 3378 3379 } else if (ieee->state == IEEE80211_LINKED && 3380 ieee->iw_mode == IW_MODE_ADHOC) { 3381 ieee->set_chan(ieee->dev, 3382 ieee->current_network.channel); 3383 ieee->link_change(ieee->dev); 3384 3385 ieee80211_start_send_beacons(ieee); 3386 3387 if (ieee->data_hard_resume) 3388 ieee->data_hard_resume(ieee->dev); 3389 netif_carrier_on(ieee->dev); 3390 } 3391 3392 CamRestoreAllEntry(dev); 3393 3394 priv->ResetProgress = RESET_TYPE_NORESET; 3395 priv->reset_count++; 3396 3397 priv->bForcedSilentReset = false; 3398 priv->bResetInProgress = false; 3399 3400 /* For test --> force write UFWP. */ 3401 write_nic_byte(dev, UFWP, 1); 3402 RT_TRACE(COMP_RESET, 3403 "Reset finished!! ====>[%d]\n", 3404 priv->reset_count); 3405 } 3406 } 3407 3408 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum, 3409 u32 *TotalRxDataNum) 3410 { 3411 u16 SlotIndex; 3412 u8 i; 3413 3414 *TotalRxBcnNum = 0; 3415 *TotalRxDataNum = 0; 3416 3417 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) % 3418 (priv->ieee80211->LinkDetectInfo.SlotNum); 3419 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] = 3420 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod; 3421 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] = 3422 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod; 3423 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) { 3424 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i]; 3425 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i]; 3426 } 3427 } 3428 3429 3430 static void rtl819x_watchdog_wqcallback(struct work_struct *work) 3431 { 3432 struct delayed_work *dwork = to_delayed_work(work); 3433 struct r8192_priv *priv = container_of(dwork, 3434 struct r8192_priv, watch_dog_wq); 3435 struct net_device *dev = priv->ieee80211->dev; 3436 struct ieee80211_device *ieee = priv->ieee80211; 3437 RESET_TYPE ResetType = RESET_TYPE_NORESET; 3438 static u8 check_reset_cnt; 3439 bool bBusyTraffic = false; 3440 u32 TotalRxBcnNum = 0; 3441 u32 TotalRxDataNum = 0; 3442 3443 if (!priv->up) 3444 return; 3445 hal_dm_watchdog(dev); 3446 3447 /* to get busy traffic condition */ 3448 if (ieee->state == IEEE80211_LINKED) { 3449 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 || 3450 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) { 3451 bBusyTraffic = true; 3452 } 3453 ieee->LinkDetectInfo.NumRxOkInPeriod = 0; 3454 ieee->LinkDetectInfo.NumTxOkInPeriod = 0; 3455 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic; 3456 } 3457 /* for AP roaming */ 3458 if (priv->ieee80211->state == IEEE80211_LINKED && 3459 priv->ieee80211->iw_mode == IW_MODE_INFRA) { 3460 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum); 3461 if ((TotalRxBcnNum + TotalRxDataNum) == 0) { 3462 #ifdef TODO 3463 if (rfState == eRfOff) 3464 RT_TRACE(COMP_ERR, "========>%s()\n", __func__); 3465 #endif 3466 netdev_dbg(dev, 3467 "===>%s(): AP is power off, connect another one\n", 3468 __func__); 3469 priv->ieee80211->state = IEEE80211_ASSOCIATING; 3470 notify_wx_assoc_event(priv->ieee80211); 3471 RemovePeerTS(priv->ieee80211, 3472 priv->ieee80211->current_network.bssid); 3473 priv->ieee80211->link_change(dev); 3474 queue_work(priv->ieee80211->wq, 3475 &priv->ieee80211->associate_procedure_wq); 3476 } 3477 } 3478 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0; 3479 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0; 3480 /* check if reset the driver */ 3481 if (check_reset_cnt++ >= 3) { 3482 ResetType = rtl819x_ifcheck_resetornot(dev); 3483 check_reset_cnt = 3; 3484 } 3485 /* This is control by OID set in Pomelo */ 3486 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET && 3487 (priv->bForcedSilentReset || 3488 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) { 3489 RT_TRACE(COMP_RESET, 3490 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n", 3491 __func__, priv->force_reset, priv->ResetProgress, 3492 priv->bForcedSilentReset, 3493 priv->bDisableNormalResetCheck, ResetType); 3494 rtl819x_ifsilentreset(dev); 3495 } 3496 priv->force_reset = false; 3497 priv->bForcedSilentReset = false; 3498 priv->bResetInProgress = false; 3499 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n"); 3500 } 3501 3502 static void watch_dog_timer_callback(struct timer_list *t) 3503 { 3504 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer); 3505 3506 schedule_delayed_work(&priv->watch_dog_wq, 0); 3507 mod_timer(&priv->watch_dog_timer, 3508 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME)); 3509 } 3510 3511 static int _rtl8192_up(struct net_device *dev) 3512 { 3513 struct r8192_priv *priv = ieee80211_priv(dev); 3514 int init_status = 0; 3515 3516 priv->up = 1; 3517 priv->ieee80211->ieee_up = 1; 3518 RT_TRACE(COMP_INIT, "Bringing up iface"); 3519 init_status = rtl8192_adapter_start(dev); 3520 if (!init_status) { 3521 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n", 3522 __func__); 3523 priv->up = priv->ieee80211->ieee_up = 0; 3524 return -EAGAIN; 3525 } 3526 RT_TRACE(COMP_INIT, "start adapter finished\n"); 3527 rtl8192_rx_enable(dev); 3528 if (priv->ieee80211->state != IEEE80211_LINKED) 3529 ieee80211_softmac_start_protocol(priv->ieee80211); 3530 ieee80211_reset_queue(priv->ieee80211); 3531 watch_dog_timer_callback(&priv->watch_dog_timer); 3532 if (!netif_queue_stopped(dev)) 3533 netif_start_queue(dev); 3534 else 3535 netif_wake_queue(dev); 3536 3537 return 0; 3538 } 3539 3540 3541 static int rtl8192_open(struct net_device *dev) 3542 { 3543 struct r8192_priv *priv = ieee80211_priv(dev); 3544 int ret; 3545 3546 mutex_lock(&priv->wx_mutex); 3547 ret = rtl8192_up(dev); 3548 mutex_unlock(&priv->wx_mutex); 3549 return ret; 3550 } 3551 3552 3553 int rtl8192_up(struct net_device *dev) 3554 { 3555 struct r8192_priv *priv = ieee80211_priv(dev); 3556 3557 if (priv->up == 1) 3558 return -1; 3559 3560 return _rtl8192_up(dev); 3561 } 3562 3563 3564 static int rtl8192_close(struct net_device *dev) 3565 { 3566 struct r8192_priv *priv = ieee80211_priv(dev); 3567 int ret; 3568 3569 mutex_lock(&priv->wx_mutex); 3570 3571 ret = rtl8192_down(dev); 3572 3573 mutex_unlock(&priv->wx_mutex); 3574 3575 return ret; 3576 } 3577 3578 int rtl8192_down(struct net_device *dev) 3579 { 3580 struct r8192_priv *priv = ieee80211_priv(dev); 3581 int i; 3582 3583 if (priv->up == 0) 3584 return -1; 3585 3586 priv->up = 0; 3587 priv->ieee80211->ieee_up = 0; 3588 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__); 3589 /* FIXME */ 3590 if (!netif_queue_stopped(dev)) 3591 netif_stop_queue(dev); 3592 3593 rtl8192_rtx_disable(dev); 3594 3595 /* Tx related queue release */ 3596 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3597 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]); 3598 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3599 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]); 3600 3601 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3602 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]); 3603 3604 /* as cancel_delayed_work will del work->timer, so if work is not 3605 * defined as struct delayed_work, it will corrupt 3606 */ 3607 rtl8192_cancel_deferred_work(priv); 3608 deinit_hal_dm(dev); 3609 del_timer_sync(&priv->watch_dog_timer); 3610 3611 3612 ieee80211_softmac_stop_protocol(priv->ieee80211); 3613 memset(&priv->ieee80211->current_network, 0, 3614 offsetof(struct ieee80211_network, list)); 3615 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__); 3616 3617 return 0; 3618 } 3619 3620 3621 void rtl8192_commit(struct net_device *dev) 3622 { 3623 struct r8192_priv *priv = ieee80211_priv(dev); 3624 int reset_status = 0; 3625 3626 if (priv->up == 0) 3627 return; 3628 priv->up = 0; 3629 3630 rtl8192_cancel_deferred_work(priv); 3631 del_timer_sync(&priv->watch_dog_timer); 3632 3633 ieee80211_softmac_stop_protocol(priv->ieee80211); 3634 3635 rtl8192_rtx_disable(dev); 3636 reset_status = _rtl8192_up(dev); 3637 } 3638 3639 static void rtl8192_restart(struct work_struct *work) 3640 { 3641 struct r8192_priv *priv = container_of(work, struct r8192_priv, 3642 reset_wq); 3643 struct net_device *dev = priv->ieee80211->dev; 3644 3645 mutex_lock(&priv->wx_mutex); 3646 3647 rtl8192_commit(dev); 3648 3649 mutex_unlock(&priv->wx_mutex); 3650 } 3651 3652 static void r8192_set_multicast(struct net_device *dev) 3653 { 3654 struct r8192_priv *priv = ieee80211_priv(dev); 3655 short promisc; 3656 3657 /* FIXME FIXME */ 3658 3659 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 3660 3661 if (promisc != priv->promisc) 3662 3663 priv->promisc = promisc; 3664 } 3665 3666 3667 static int r8192_set_mac_adr(struct net_device *dev, void *mac) 3668 { 3669 struct r8192_priv *priv = ieee80211_priv(dev); 3670 struct sockaddr *addr = mac; 3671 3672 mutex_lock(&priv->wx_mutex); 3673 3674 ether_addr_copy(dev->dev_addr, addr->sa_data); 3675 3676 schedule_work(&priv->reset_wq); 3677 mutex_unlock(&priv->wx_mutex); 3678 3679 return 0; 3680 } 3681 3682 /* based on ipw2200 driver */ 3683 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 3684 { 3685 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3686 struct iwreq *wrq = (struct iwreq *)rq; 3687 int ret = -1; 3688 struct ieee80211_device *ieee = priv->ieee80211; 3689 u32 key[4]; 3690 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3691 struct iw_point *p = &wrq->u.data; 3692 struct ieee_param *ipw = NULL; 3693 3694 mutex_lock(&priv->wx_mutex); 3695 3696 3697 if (p->length < sizeof(struct ieee_param) || !p->pointer) { 3698 ret = -EINVAL; 3699 goto out; 3700 } 3701 3702 ipw = memdup_user(p->pointer, p->length); 3703 if (IS_ERR(ipw)) { 3704 ret = PTR_ERR(ipw); 3705 goto out; 3706 } 3707 3708 switch (cmd) { 3709 case RTL_IOCTL_WPA_SUPPLICANT: 3710 /* parse here for HW security */ 3711 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) { 3712 if (ipw->u.crypt.set_tx) { 3713 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3714 ieee->pairwise_key_type = KEY_TYPE_CCMP; 3715 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3716 ieee->pairwise_key_type = KEY_TYPE_TKIP; 3717 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3718 if (ipw->u.crypt.key_len == 13) 3719 ieee->pairwise_key_type = KEY_TYPE_WEP104; 3720 else if (ipw->u.crypt.key_len == 5) 3721 ieee->pairwise_key_type = KEY_TYPE_WEP40; 3722 } else { 3723 ieee->pairwise_key_type = KEY_TYPE_NA; 3724 } 3725 3726 if (ieee->pairwise_key_type) { 3727 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3728 EnableHWSecurityConfig8192(dev); 3729 /* We fill both index entry and 4th 3730 * entry for pairwise key as in IPW 3731 * interface, adhoc will only get here, 3732 * so we need index entry for its 3733 * default key serching! 3734 */ 3735 setKey(dev, 4, ipw->u.crypt.idx, 3736 ieee->pairwise_key_type, 3737 (u8 *)ieee->ap_mac_addr, 3738 0, key); 3739 if (ieee->auth_mode != 2) 3740 setKey(dev, ipw->u.crypt.idx, 3741 ipw->u.crypt.idx, 3742 ieee->pairwise_key_type, 3743 (u8 *)ieee->ap_mac_addr, 3744 0, key); 3745 } 3746 } else { 3747 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3748 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3749 ieee->group_key_type = KEY_TYPE_CCMP; 3750 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3751 ieee->group_key_type = KEY_TYPE_TKIP; 3752 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3753 if (ipw->u.crypt.key_len == 13) 3754 ieee->group_key_type = KEY_TYPE_WEP104; 3755 else if (ipw->u.crypt.key_len == 5) 3756 ieee->group_key_type = KEY_TYPE_WEP40; 3757 } else { 3758 ieee->group_key_type = KEY_TYPE_NA; 3759 } 3760 3761 if (ieee->group_key_type) { 3762 setKey(dev, ipw->u.crypt.idx, 3763 /* KeyIndex */ 3764 ipw->u.crypt.idx, 3765 /* KeyType */ 3766 ieee->group_key_type, 3767 /* MacAddr */ 3768 broadcast_addr, 3769 /* DefaultKey */ 3770 0, 3771 /* KeyContent */ 3772 key); 3773 } 3774 } 3775 } 3776 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, 3777 &wrq->u.data); 3778 break; 3779 3780 default: 3781 ret = -EOPNOTSUPP; 3782 break; 3783 } 3784 kfree(ipw); 3785 ipw = NULL; 3786 out: 3787 mutex_unlock(&priv->wx_mutex); 3788 return ret; 3789 } 3790 3791 static u8 HwRateToMRate90(bool bIsHT, u8 rate) 3792 { 3793 u8 ret_rate = 0xff; 3794 3795 if (!bIsHT) { 3796 switch (rate) { 3797 case DESC90_RATE1M: 3798 ret_rate = MGN_1M; 3799 break; 3800 case DESC90_RATE2M: 3801 ret_rate = MGN_2M; 3802 break; 3803 case DESC90_RATE5_5M: 3804 ret_rate = MGN_5_5M; 3805 break; 3806 case DESC90_RATE11M: 3807 ret_rate = MGN_11M; 3808 break; 3809 case DESC90_RATE6M: 3810 ret_rate = MGN_6M; 3811 break; 3812 case DESC90_RATE9M: 3813 ret_rate = MGN_9M; 3814 break; 3815 case DESC90_RATE12M: 3816 ret_rate = MGN_12M; 3817 break; 3818 case DESC90_RATE18M: 3819 ret_rate = MGN_18M; 3820 break; 3821 case DESC90_RATE24M: 3822 ret_rate = MGN_24M; 3823 break; 3824 case DESC90_RATE36M: 3825 ret_rate = MGN_36M; 3826 break; 3827 case DESC90_RATE48M: 3828 ret_rate = MGN_48M; 3829 break; 3830 case DESC90_RATE54M: 3831 ret_rate = MGN_54M; 3832 break; 3833 3834 default: 3835 ret_rate = 0xff; 3836 RT_TRACE(COMP_RECV, 3837 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3838 __func__, rate, bIsHT); 3839 break; 3840 } 3841 3842 } else { 3843 switch (rate) { 3844 case DESC90_RATEMCS0: 3845 ret_rate = MGN_MCS0; 3846 break; 3847 case DESC90_RATEMCS1: 3848 ret_rate = MGN_MCS1; 3849 break; 3850 case DESC90_RATEMCS2: 3851 ret_rate = MGN_MCS2; 3852 break; 3853 case DESC90_RATEMCS3: 3854 ret_rate = MGN_MCS3; 3855 break; 3856 case DESC90_RATEMCS4: 3857 ret_rate = MGN_MCS4; 3858 break; 3859 case DESC90_RATEMCS5: 3860 ret_rate = MGN_MCS5; 3861 break; 3862 case DESC90_RATEMCS6: 3863 ret_rate = MGN_MCS6; 3864 break; 3865 case DESC90_RATEMCS7: 3866 ret_rate = MGN_MCS7; 3867 break; 3868 case DESC90_RATEMCS8: 3869 ret_rate = MGN_MCS8; 3870 break; 3871 case DESC90_RATEMCS9: 3872 ret_rate = MGN_MCS9; 3873 break; 3874 case DESC90_RATEMCS10: 3875 ret_rate = MGN_MCS10; 3876 break; 3877 case DESC90_RATEMCS11: 3878 ret_rate = MGN_MCS11; 3879 break; 3880 case DESC90_RATEMCS12: 3881 ret_rate = MGN_MCS12; 3882 break; 3883 case DESC90_RATEMCS13: 3884 ret_rate = MGN_MCS13; 3885 break; 3886 case DESC90_RATEMCS14: 3887 ret_rate = MGN_MCS14; 3888 break; 3889 case DESC90_RATEMCS15: 3890 ret_rate = MGN_MCS15; 3891 break; 3892 case DESC90_RATEMCS32: 3893 ret_rate = 0x80 | 0x20; 3894 break; 3895 3896 default: 3897 ret_rate = 0xff; 3898 RT_TRACE(COMP_RECV, 3899 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3900 __func__, rate, bIsHT); 3901 break; 3902 } 3903 } 3904 3905 return ret_rate; 3906 } 3907 3908 /** 3909 * Function: UpdateRxPktTimeStamp 3910 * Overview: Record the TSF time stamp when receiving a packet 3911 * 3912 * Input: 3913 * PADAPTER Adapter 3914 * PRT_RFD pRfd, 3915 * 3916 * Output: 3917 * PRT_RFD pRfd 3918 * (pRfd->Status.TimeStampHigh is updated) 3919 * (pRfd->Status.TimeStampLow is updated) 3920 * Return: 3921 * None 3922 */ 3923 static void UpdateRxPktTimeStamp8190(struct net_device *dev, 3924 struct ieee80211_rx_stats *stats) 3925 { 3926 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3927 3928 if (stats->bIsAMPDU && !stats->bFirstMPDU) { 3929 stats->mac_time[0] = priv->LastRxDescTSFLow; 3930 stats->mac_time[1] = priv->LastRxDescTSFHigh; 3931 } else { 3932 priv->LastRxDescTSFLow = stats->mac_time[0]; 3933 priv->LastRxDescTSFHigh = stats->mac_time[1]; 3934 } 3935 } 3936 3937 /* 0-100 index. */ 3938 static long rtl819x_translate_todbm(u8 signal_strength_index) 3939 { 3940 long signal_power; /* in dBm. */ 3941 3942 /* Translate to dBm (x=0.5y-95). */ 3943 signal_power = (long)((signal_strength_index + 1) >> 1); 3944 signal_power -= 95; 3945 3946 return signal_power; 3947 } 3948 3949 3950 /* We can not declare RSSI/EVM total value of sliding window to 3951 * be a local static. Otherwise, it may increase when we return from S3/S4. The 3952 * value will be kept in memory or disk. Declare the value in the adaptor 3953 * and it will be reinitialized when returned from S3/S4. 3954 */ 3955 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer, 3956 struct ieee80211_rx_stats *pprevious_stats, 3957 struct ieee80211_rx_stats *pcurrent_stats) 3958 { 3959 bool bcheck = false; 3960 u8 rfpath; 3961 u32 nspatial_stream, tmp_val; 3962 static u32 slide_rssi_index, slide_rssi_statistics; 3963 static u32 slide_evm_index, slide_evm_statistics; 3964 static u32 last_rssi, last_evm; 3965 3966 static u32 slide_beacon_adc_pwdb_index; 3967 static u32 slide_beacon_adc_pwdb_statistics; 3968 static u32 last_beacon_adc_pwdb; 3969 3970 struct rtl_80211_hdr_3addr *hdr; 3971 u16 sc; 3972 unsigned int frag, seq; 3973 3974 hdr = (struct rtl_80211_hdr_3addr *)buffer; 3975 sc = le16_to_cpu(hdr->seq_ctl); 3976 frag = WLAN_GET_SEQ_FRAG(sc); 3977 seq = WLAN_GET_SEQ_SEQ(sc); 3978 /* to record the sequence number */ 3979 pcurrent_stats->Seq_Num = seq; 3980 3981 /* Check whether we should take the previous packet into accounting */ 3982 if (!pprevious_stats->bIsAMPDU) { 3983 /* if previous packet is not aggregated packet */ 3984 bcheck = true; 3985 } 3986 3987 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 3988 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX; 3989 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index]; 3990 priv->stats.slide_rssi_total -= last_rssi; 3991 } 3992 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength; 3993 3994 priv->stats.slide_signal_strength[slide_rssi_index++] = 3995 pprevious_stats->SignalStrength; 3996 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX) 3997 slide_rssi_index = 0; 3998 3999 /* <1> Showed on UI for user, in dbm */ 4000 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics; 4001 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val); 4002 pcurrent_stats->rssi = priv->stats.signal_strength; 4003 4004 /* If the previous packet does not match the criteria, neglect it */ 4005 if (!pprevious_stats->bPacketMatchBSSID) { 4006 if (!pprevious_stats->bToSelfBA) 4007 return; 4008 } 4009 4010 if (!bcheck) 4011 return; 4012 4013 4014 /* only rtl8190 supported 4015 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats); 4016 */ 4017 4018 /* Check RSSI */ 4019 priv->stats.num_process_phyinfo++; 4020 4021 /* record the general signal strength to the sliding window. */ 4022 4023 4024 /* <2> Showed on UI for engineering 4025 * hardware does not provide rssi information for each rf path in CCK 4026 */ 4027 if (!pprevious_stats->bIsCCK && 4028 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) { 4029 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) { 4030 if (!rtl8192_phy_CheckIsLegalRFPath( 4031 priv->ieee80211->dev, rfpath)) 4032 continue; 4033 4034 if (priv->stats.rx_rssi_percentage[rfpath] == 0) 4035 priv->stats.rx_rssi_percentage[rfpath] = 4036 pprevious_stats->RxMIMOSignalStrength[rfpath]; 4037 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) { 4038 priv->stats.rx_rssi_percentage[rfpath] = 4039 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) + 4040 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor); 4041 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1; 4042 } else { 4043 priv->stats.rx_rssi_percentage[rfpath] = 4044 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) + 4045 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor); 4046 } 4047 RT_TRACE(COMP_DBG, 4048 "priv->stats.rx_rssi_percentage[rfPath] = %d\n", 4049 priv->stats.rx_rssi_percentage[rfpath]); 4050 } 4051 } 4052 4053 4054 /* Check PWDB. */ 4055 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 4056 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 4057 pprevious_stats->RxPWDBAll); 4058 4059 if (pprevious_stats->bPacketBeacon) { 4060 /* record the beacon pwdb to the sliding window. */ 4061 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) { 4062 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX; 4063 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index]; 4064 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb; 4065 } 4066 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll; 4067 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll; 4068 slide_beacon_adc_pwdb_index++; 4069 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX) 4070 slide_beacon_adc_pwdb_index = 0; 4071 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics; 4072 if (pprevious_stats->RxPWDBAll >= 3) 4073 pprevious_stats->RxPWDBAll -= 3; 4074 } 4075 4076 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 4077 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 4078 pprevious_stats->RxPWDBAll); 4079 4080 4081 if (pprevious_stats->bPacketToSelf || 4082 pprevious_stats->bPacketBeacon || 4083 pprevious_stats->bToSelfBA) { 4084 if (priv->undecorated_smoothed_pwdb < 0) 4085 /* initialize */ 4086 priv->undecorated_smoothed_pwdb = 4087 pprevious_stats->RxPWDBAll; 4088 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) { 4089 priv->undecorated_smoothed_pwdb = 4090 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) + 4091 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor); 4092 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1; 4093 } else { 4094 priv->undecorated_smoothed_pwdb = 4095 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) + 4096 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor); 4097 } 4098 } 4099 4100 /* Check EVM */ 4101 /* record the general EVM to the sliding window. */ 4102 if (pprevious_stats->SignalQuality) { 4103 if (pprevious_stats->bPacketToSelf || 4104 pprevious_stats->bPacketBeacon || 4105 pprevious_stats->bToSelfBA) { 4106 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 4107 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX; 4108 last_evm = priv->stats.slide_evm[slide_evm_index]; 4109 priv->stats.slide_evm_total -= last_evm; 4110 } 4111 4112 priv->stats.slide_evm_total += 4113 pprevious_stats->SignalQuality; 4114 4115 priv->stats.slide_evm[slide_evm_index++] = 4116 pprevious_stats->SignalQuality; 4117 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX) 4118 slide_evm_index = 0; 4119 4120 /* <1> Showed on UI for user, in percentage. */ 4121 tmp_val = priv->stats.slide_evm_total / 4122 slide_evm_statistics; 4123 priv->stats.signal_quality = tmp_val; 4124 /* Showed on UI for user in Windows Vista, 4125 * for Link quality. 4126 */ 4127 priv->stats.last_signal_strength_inpercent = tmp_val; 4128 } 4129 4130 /* <2> Showed on UI for engineering */ 4131 if (pprevious_stats->bPacketToSelf || 4132 pprevious_stats->bPacketBeacon || 4133 pprevious_stats->bToSelfBA) { 4134 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */ 4135 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) { 4136 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */ 4137 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream]; 4138 priv->stats.rx_evm_percentage[nspatial_stream] = 4139 ((priv->stats.rx_evm_percentage[nspatial_stream] * (Rx_Smooth_Factor - 1)) + 4140 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (Rx_Smooth_Factor); 4141 } 4142 } 4143 } 4144 } 4145 } 4146 4147 /*----------------------------------------------------------------------------- 4148 * Function: rtl819x_query_rxpwrpercentage() 4149 * 4150 * Overview: 4151 * 4152 * Input: char antpower 4153 * 4154 * Output: NONE 4155 * 4156 * Return: 0-100 percentage 4157 *--------------------------------------------------------------------------- 4158 */ 4159 static u8 rtl819x_query_rxpwrpercentage(s8 antpower) 4160 { 4161 if ((antpower <= -100) || (antpower >= 20)) 4162 return 0; 4163 else if (antpower >= 0) 4164 return 100; 4165 else 4166 return 100 + antpower; 4167 4168 } /* QueryRxPwrPercentage */ 4169 4170 static u8 rtl819x_evm_dbtopercentage(s8 value) 4171 { 4172 s8 ret_val; 4173 4174 ret_val = value; 4175 4176 if (ret_val >= 0) 4177 ret_val = 0; 4178 if (ret_val <= -33) 4179 ret_val = -33; 4180 ret_val = 0 - ret_val; 4181 ret_val *= 3; 4182 if (ret_val == 99) 4183 ret_val = 100; 4184 return ret_val; 4185 } 4186 4187 /* We want good-looking for signal strength/quality */ 4188 static long rtl819x_signal_scale_mapping(long currsig) 4189 { 4190 long retsig; 4191 4192 /* Step 1. Scale mapping. */ 4193 if (currsig >= 61 && currsig <= 100) 4194 retsig = 90 + ((currsig - 60) / 4); 4195 else if (currsig >= 41 && currsig <= 60) 4196 retsig = 78 + ((currsig - 40) / 2); 4197 else if (currsig >= 31 && currsig <= 40) 4198 retsig = 66 + (currsig - 30); 4199 else if (currsig >= 21 && currsig <= 30) 4200 retsig = 54 + (currsig - 20); 4201 else if (currsig >= 5 && currsig <= 20) 4202 retsig = 42 + (((currsig - 5) * 2) / 3); 4203 else if (currsig == 4) 4204 retsig = 36; 4205 else if (currsig == 3) 4206 retsig = 27; 4207 else if (currsig == 2) 4208 retsig = 18; 4209 else if (currsig == 1) 4210 retsig = 9; 4211 else 4212 retsig = currsig; 4213 4214 return retsig; 4215 } 4216 4217 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo) 4218 { 4219 if (pdrvinfo->RxHT) 4220 return false; 4221 4222 switch (pdrvinfo->RxRate) { 4223 case DESC90_RATE1M: 4224 case DESC90_RATE2M: 4225 case DESC90_RATE5_5M: 4226 case DESC90_RATE11M: 4227 return true; 4228 default: 4229 return false; 4230 } 4231 } 4232 4233 static void rtl8192_query_rxphystatus(struct r8192_priv *priv, 4234 struct ieee80211_rx_stats *pstats, 4235 rx_drvinfo_819x_usb *pdrvinfo, 4236 struct ieee80211_rx_stats *precord_stats, 4237 bool bpacket_match_bssid, 4238 bool bpacket_toself, 4239 bool bPacketBeacon, 4240 bool bToSelfBA) 4241 { 4242 phy_sts_ofdm_819xusb_t *pofdm_buf; 4243 phy_sts_cck_819xusb_t *pcck_buf; 4244 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc; 4245 u8 *prxpkt; 4246 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg; 4247 s8 rx_pwr[4], rx_pwr_all = 0; 4248 s8 rx_snrX, rx_evmX; 4249 u8 evm, pwdb_all; 4250 u32 RSSI, total_rssi = 0; 4251 u8 is_cck_rate = 0; 4252 u8 rf_rx_num = 0; 4253 u8 sq; 4254 4255 4256 priv->stats.numqry_phystatus++; 4257 4258 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo); 4259 4260 /* Record it for next packet processing */ 4261 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats)); 4262 pstats->bPacketMatchBSSID = 4263 precord_stats->bPacketMatchBSSID = bpacket_match_bssid; 4264 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself; 4265 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate; 4266 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon; 4267 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA; 4268 4269 prxpkt = (u8 *)pdrvinfo; 4270 4271 /* Move pointer to the 16th bytes. Phy status start address. */ 4272 prxpkt += sizeof(rx_drvinfo_819x_usb); 4273 4274 /* Initial the cck and ofdm buffer pointer */ 4275 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt; 4276 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt; 4277 4278 pstats->RxMIMOSignalQuality[0] = -1; 4279 pstats->RxMIMOSignalQuality[1] = -1; 4280 precord_stats->RxMIMOSignalQuality[0] = -1; 4281 precord_stats->RxMIMOSignalQuality[1] = -1; 4282 4283 if (is_cck_rate) { 4284 /* (1)Hardware does not provide RSSI for CCK */ 4285 4286 /* (2)PWDB, Average PWDB calculated by hardware 4287 * (for rate adaptive) 4288 */ 4289 u8 report; 4290 4291 priv->stats.numqry_phystatusCCK++; 4292 4293 if (!priv->bCckHighPower) { 4294 report = pcck_buf->cck_agc_rpt & 0xc0; 4295 report >>= 6; 4296 switch (report) { 4297 case 0x3: 4298 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e); 4299 break; 4300 case 0x2: 4301 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e); 4302 break; 4303 case 0x1: 4304 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e); 4305 break; 4306 case 0x0: 4307 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e); 4308 break; 4309 } 4310 } else { 4311 report = pcck_buf->cck_agc_rpt & 0x60; 4312 report >>= 5; 4313 switch (report) { 4314 case 0x3: 4315 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4316 break; 4317 case 0x2: 4318 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4319 break; 4320 case 0x1: 4321 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4322 break; 4323 case 0x0: 4324 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4325 break; 4326 } 4327 } 4328 4329 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4330 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4331 pstats->RecvSignalPower = pwdb_all; 4332 4333 /* (3) Get Signal Quality (EVM) */ 4334 4335 if (pstats->RxPWDBAll > 40) { 4336 sq = 100; 4337 } else { 4338 sq = pcck_buf->sq_rpt; 4339 4340 if (pcck_buf->sq_rpt > 64) 4341 sq = 0; 4342 else if (pcck_buf->sq_rpt < 20) 4343 sq = 100; 4344 else 4345 sq = ((64 - sq) * 100) / 44; 4346 } 4347 pstats->SignalQuality = precord_stats->SignalQuality = sq; 4348 pstats->RxMIMOSignalQuality[0] = 4349 precord_stats->RxMIMOSignalQuality[0] = sq; 4350 pstats->RxMIMOSignalQuality[1] = 4351 precord_stats->RxMIMOSignalQuality[1] = -1; 4352 4353 } else { 4354 priv->stats.numqry_phystatusHT++; 4355 4356 /* (1)Get RSSI for HT rate */ 4357 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) { 4358 /* We will judge RF RX path now. */ 4359 if (priv->brfpath_rxenable[i]) 4360 rf_rx_num++; 4361 else 4362 continue; 4363 4364 if (!rtl8192_phy_CheckIsLegalRFPath( 4365 priv->ieee80211->dev, i)) 4366 continue; 4367 4368 rx_pwr[i] = 4369 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106; 4370 4371 /* Get Rx snr value in DB */ 4372 tmp_rxsnr = pofdm_buf->rxsnr_X[i]; 4373 rx_snrX = (s8)(tmp_rxsnr); 4374 rx_snrX /= 2; 4375 priv->stats.rxSNRdB[i] = (long)rx_snrX; 4376 4377 /* Translate DBM to percentage. */ 4378 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]); 4379 total_rssi += RSSI; 4380 4381 /* Record Signal Strength for next packet */ 4382 pstats->RxMIMOSignalStrength[i] = (u8)RSSI; 4383 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI; 4384 } 4385 4386 4387 /* (2)PWDB, Average PWDB calculated by hardware 4388 * (for rate adaptive) 4389 */ 4390 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106; 4391 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4392 4393 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4394 pstats->RxPower = precord_stats->RxPower = rx_pwr_all; 4395 4396 /* (3)EVM of HT rate */ 4397 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 && 4398 pdrvinfo->RxRate <= DESC90_RATEMCS15) 4399 /* both spatial stream make sense */ 4400 max_spatial_stream = 2; 4401 else 4402 /* only spatial stream 1 makes sense */ 4403 max_spatial_stream = 1; 4404 4405 for (i = 0; i < max_spatial_stream; i++) { 4406 tmp_rxevm = pofdm_buf->rxevm_X[i]; 4407 rx_evmX = (s8)(tmp_rxevm); 4408 4409 /* Do not use shift operation like "rx_evmX >>= 1" 4410 * because the compiler of free build environment will 4411 * set the most significant bit to "zero" when doing 4412 * shifting operation which may change a negative value 4413 * to positive one, then the dbm value (which is 4414 * supposed to be negative) is not correct anymore. 4415 */ 4416 rx_evmX /= 2; /* dbm */ 4417 4418 evm = rtl819x_evm_dbtopercentage(rx_evmX); 4419 if (i == 0) 4420 /* Fill value in RFD, Get the first spatial 4421 * stream only 4422 */ 4423 pstats->SignalQuality = 4424 precord_stats->SignalQuality = 4425 evm & 0xff; 4426 pstats->RxMIMOSignalQuality[i] = 4427 precord_stats->RxMIMOSignalQuality[i] = 4428 evm & 0xff; 4429 } 4430 4431 4432 /* record rx statistics for debug */ 4433 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg; 4434 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *) 4435 &rxsc_sgien_exflg; 4436 if (pdrvinfo->BW) /* 40M channel */ 4437 priv->stats.received_bwtype[1 + prxsc->rxsc]++; 4438 else /* 20M channel */ 4439 priv->stats.received_bwtype[0]++; 4440 } 4441 4442 /* UI BSS List signal strength(in percentage), make it good looking, 4443 * from 0~100. It is assigned to the BSS List in 4444 * GetValueFromBeaconOrProbeRsp(). 4445 */ 4446 if (is_cck_rate) { 4447 pstats->SignalStrength = 4448 precord_stats->SignalStrength = 4449 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all)); 4450 } else { 4451 /* We can judge RX path number now. */ 4452 if (rf_rx_num != 0) { 4453 pstats->SignalStrength = 4454 precord_stats->SignalStrength = 4455 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num))); 4456 } 4457 } 4458 } /* QueryRxPhyStatus8190Pci */ 4459 4460 static void rtl8192_record_rxdesc_forlateruse( 4461 struct ieee80211_rx_stats *psrc_stats, 4462 struct ieee80211_rx_stats *ptarget_stats) 4463 { 4464 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU; 4465 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU; 4466 ptarget_stats->Seq_Num = psrc_stats->Seq_Num; 4467 } 4468 4469 4470 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb, 4471 struct ieee80211_rx_stats *pstats, 4472 rx_drvinfo_819x_usb *pdrvinfo) 4473 { 4474 /* TODO: We must only check packet for current MAC address. 4475 * Not finish 4476 */ 4477 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4478 struct net_device *dev = info->dev; 4479 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4480 bool bpacket_match_bssid, bpacket_toself; 4481 bool bPacketBeacon = false, bToSelfBA = false; 4482 static struct ieee80211_rx_stats previous_stats; 4483 struct rtl_80211_hdr_3addr *hdr; 4484 u16 fc, type; 4485 4486 /* Get Signal Quality for only RX data queue (but not command queue) */ 4487 4488 u8 *tmp_buf; 4489 u8 *praddr; 4490 4491 /* Get MAC frame start address. */ 4492 tmp_buf = (u8 *)skb->data; 4493 4494 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf; 4495 fc = le16_to_cpu(hdr->frame_ctl); 4496 type = WLAN_FC_GET_TYPE(fc); 4497 praddr = hdr->addr1; 4498 4499 /* Check if the received packet is acceptable. */ 4500 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) && 4501 (eqMacAddr(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3)) 4502 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV); 4503 bpacket_toself = bpacket_match_bssid & 4504 (eqMacAddr(praddr, priv->ieee80211->dev->dev_addr)); 4505 4506 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON) 4507 bPacketBeacon = true; 4508 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) { 4509 if ((eqMacAddr(praddr, dev->dev_addr))) 4510 bToSelfBA = true; 4511 } 4512 4513 4514 4515 if (bpacket_match_bssid) 4516 priv->stats.numpacket_matchbssid++; 4517 if (bpacket_toself) 4518 priv->stats.numpacket_toself++; 4519 /* Process PHY information for previous packet (RSSI/PWDB/EVM) 4520 * Because phy information is contained in the last packet of AMPDU 4521 * only, so driver should process phy information of previous packet 4522 */ 4523 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats); 4524 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats, 4525 bpacket_match_bssid, bpacket_toself, 4526 bPacketBeacon, bToSelfBA); 4527 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats); 4528 } 4529 4530 /** 4531 * Function: UpdateReceivedRateHistogramStatistics 4532 * Overview: Record the received data rate 4533 * 4534 * Input: 4535 * struct net_device *dev 4536 * struct ieee80211_rx_stats *stats 4537 * 4538 * Output: 4539 * 4540 * (priv->stats.ReceivedRateHistogram[] is updated) 4541 * Return: 4542 * None 4543 */ 4544 static void 4545 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev, 4546 struct ieee80211_rx_stats *stats) 4547 { 4548 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4549 /* 0: Total, 1:OK, 2:CRC, 3:ICV */ 4550 u32 rcvType = 1; 4551 u32 rateIndex; 4552 /* 1: short preamble/GI, 0: long preamble/GI */ 4553 u32 preamble_guardinterval; 4554 4555 4556 if (stats->bCRC) 4557 rcvType = 2; 4558 else if (stats->bICV) 4559 rcvType = 3; 4560 4561 if (stats->bShortPreamble) 4562 preamble_guardinterval = 1; /* short */ 4563 else 4564 preamble_guardinterval = 0; /* long */ 4565 4566 switch (stats->rate) { 4567 /* CCK rate */ 4568 case MGN_1M: 4569 rateIndex = 0; 4570 break; 4571 case MGN_2M: 4572 rateIndex = 1; 4573 break; 4574 case MGN_5_5M: 4575 rateIndex = 2; 4576 break; 4577 case MGN_11M: 4578 rateIndex = 3; 4579 break; 4580 /* Legacy OFDM rate */ 4581 case MGN_6M: 4582 rateIndex = 4; 4583 break; 4584 case MGN_9M: 4585 rateIndex = 5; 4586 break; 4587 case MGN_12M: 4588 rateIndex = 6; 4589 break; 4590 case MGN_18M: 4591 rateIndex = 7; 4592 break; 4593 case MGN_24M: 4594 rateIndex = 8; 4595 break; 4596 case MGN_36M: 4597 rateIndex = 9; 4598 break; 4599 case MGN_48M: 4600 rateIndex = 10; 4601 break; 4602 case MGN_54M: 4603 rateIndex = 11; 4604 break; 4605 /* 11n High throughput rate */ 4606 case MGN_MCS0: 4607 rateIndex = 12; 4608 break; 4609 case MGN_MCS1: 4610 rateIndex = 13; 4611 break; 4612 case MGN_MCS2: 4613 rateIndex = 14; 4614 break; 4615 case MGN_MCS3: 4616 rateIndex = 15; 4617 break; 4618 case MGN_MCS4: 4619 rateIndex = 16; 4620 break; 4621 case MGN_MCS5: 4622 rateIndex = 17; 4623 break; 4624 case MGN_MCS6: 4625 rateIndex = 18; 4626 break; 4627 case MGN_MCS7: 4628 rateIndex = 19; 4629 break; 4630 case MGN_MCS8: 4631 rateIndex = 20; 4632 break; 4633 case MGN_MCS9: 4634 rateIndex = 21; 4635 break; 4636 case MGN_MCS10: 4637 rateIndex = 22; 4638 break; 4639 case MGN_MCS11: 4640 rateIndex = 23; 4641 break; 4642 case MGN_MCS12: 4643 rateIndex = 24; 4644 break; 4645 case MGN_MCS13: 4646 rateIndex = 25; 4647 break; 4648 case MGN_MCS14: 4649 rateIndex = 26; 4650 break; 4651 case MGN_MCS15: 4652 rateIndex = 27; 4653 break; 4654 default: 4655 rateIndex = 28; 4656 break; 4657 } 4658 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++; 4659 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */ 4660 priv->stats.received_rate_histogram[rcvType][rateIndex]++; 4661 } 4662 4663 4664 static void query_rxdesc_status(struct sk_buff *skb, 4665 struct ieee80211_rx_stats *stats, 4666 bool bIsRxAggrSubframe) 4667 { 4668 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4669 struct net_device *dev = info->dev; 4670 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4671 rx_drvinfo_819x_usb *driver_info = NULL; 4672 4673 /* Get Rx Descriptor Information */ 4674 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data; 4675 4676 stats->Length = desc->Length; 4677 stats->RxDrvInfoSize = desc->RxDrvInfoSize; 4678 stats->RxBufShift = 0; 4679 stats->bICV = desc->ICV; 4680 stats->bCRC = desc->CRC32; 4681 stats->bHwError = stats->bCRC | stats->bICV; 4682 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */ 4683 stats->Decrypted = !desc->SWDec; 4684 4685 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) && 4686 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP)) 4687 stats->bHwError = false; 4688 else 4689 stats->bHwError = stats->bCRC | stats->bICV; 4690 4691 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE) 4692 stats->bHwError |= 1; 4693 /* Get Driver Info */ 4694 /* TODO: Need to verify it on FGPA platform 4695 * Driver info are written to the RxBuffer following rx desc 4696 */ 4697 if (stats->RxDrvInfoSize != 0) { 4698 driver_info = (rx_drvinfo_819x_usb *)( 4699 skb->data 4700 + sizeof(rx_desc_819x_usb) 4701 + stats->RxBufShift 4702 ); 4703 /* unit: 0.5M */ 4704 /* TODO */ 4705 if (!stats->bHwError) { 4706 u8 ret_rate; 4707 4708 ret_rate = HwRateToMRate90(driver_info->RxHT, 4709 driver_info->RxRate); 4710 if (ret_rate == 0xff) { 4711 /* Abnormal Case: Receive CRC OK packet with Rx 4712 * descriptor indicating non supported rate. 4713 * Special Error Handling here 4714 */ 4715 4716 stats->bHwError = 1; 4717 /* Set 1M rate by default */ 4718 stats->rate = MGN_1M; 4719 } else { 4720 stats->rate = ret_rate; 4721 } 4722 } else { 4723 stats->rate = 0x02; 4724 } 4725 4726 stats->bShortPreamble = driver_info->SPLCP; 4727 4728 4729 UpdateReceivedRateHistogramStatistics8190(dev, stats); 4730 4731 stats->bIsAMPDU = (driver_info->PartAggr == 1); 4732 stats->bFirstMPDU = (driver_info->PartAggr == 1) && 4733 (driver_info->FirstAGGR == 1); 4734 stats->TimeStampLow = driver_info->TSFL; 4735 4736 UpdateRxPktTimeStamp8190(dev, stats); 4737 4738 /* Rx A-MPDU */ 4739 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1) 4740 RT_TRACE(COMP_RXDESC, 4741 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n", 4742 driver_info->FirstAGGR, driver_info->PartAggr); 4743 } 4744 4745 skb_pull(skb, sizeof(rx_desc_819x_usb)); 4746 /* Get Total offset of MPDU Frame Body */ 4747 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) { 4748 stats->bShift = 1; 4749 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize); 4750 } 4751 4752 if (driver_info) { 4753 stats->RxIs40MHzPacket = driver_info->BW; 4754 TranslateRxSignalStuff819xUsb(skb, stats, driver_info); 4755 } 4756 } 4757 4758 static void rtl8192_rx_nomal(struct sk_buff *skb) 4759 { 4760 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4761 struct net_device *dev = info->dev; 4762 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4763 struct ieee80211_rx_stats stats = { 4764 .signal = 0, 4765 .noise = 0x100 - 98, 4766 .rate = 0, 4767 .freq = IEEE80211_24GHZ_BAND, 4768 }; 4769 u32 rx_pkt_len = 0; 4770 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL; 4771 bool unicast_packet = false; 4772 4773 /* 20 is for ps-poll */ 4774 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4775 /* first packet should not contain Rx aggregation header */ 4776 query_rxdesc_status(skb, &stats, false); 4777 /* TODO */ 4778 /* hardware related info */ 4779 /* Process the MPDU received */ 4780 skb_trim(skb, skb->len - 4/*sCrcLng*/); 4781 4782 rx_pkt_len = skb->len; 4783 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data; 4784 unicast_packet = false; 4785 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) { 4786 /* TODO */ 4787 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) { 4788 /* TODO */ 4789 } else { 4790 /* unicast packet */ 4791 unicast_packet = true; 4792 } 4793 4794 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) { 4795 dev_kfree_skb_any(skb); 4796 } else { 4797 priv->stats.rxoktotal++; 4798 if (unicast_packet) 4799 priv->stats.rxbytesunicast += rx_pkt_len; 4800 } 4801 } else { 4802 priv->stats.rxurberr++; 4803 netdev_dbg(dev, "actual_length: %d\n", skb->len); 4804 dev_kfree_skb_any(skb); 4805 } 4806 } 4807 4808 static void rtl819xusb_process_received_packet( 4809 struct net_device *dev, 4810 struct ieee80211_rx_stats *pstats) 4811 { 4812 u8 *frame; 4813 u16 frame_len = 0; 4814 struct r8192_priv *priv = ieee80211_priv(dev); 4815 4816 /* Get shifted bytes of Starting address of 802.11 header. */ 4817 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats); 4818 frame = pstats->virtual_address; 4819 frame_len = pstats->packetlength; 4820 #ifdef TODO /* about HCT */ 4821 if (!Adapter->bInHctTest) 4822 CountRxErrStatistics(Adapter, pRfd); 4823 #endif 4824 #ifdef ENABLE_PS /* for adding ps function in future */ 4825 RT_RF_POWER_STATE rtState; 4826 /* When RF is off, we should not count the packet for hw/sw synchronize 4827 * reason, ie. there may be a duration while sw switch is changed and 4828 * hw switch is being changed. 4829 */ 4830 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE, 4831 (u8 *)(&rtState)); 4832 if (rtState == eRfOff) 4833 return; 4834 #endif 4835 priv->stats.rxframgment++; 4836 4837 #ifdef TODO 4838 RmMonitorSignalStrength(Adapter, pRfd); 4839 #endif 4840 /* We have to release RFD and return if rx pkt is cmd pkt. */ 4841 if (rtl819xusb_rx_command_packet(dev, pstats)) 4842 return; 4843 4844 #ifdef SW_CRC_CHECK 4845 SwCrcCheck(); 4846 #endif 4847 4848 4849 } 4850 4851 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb, 4852 struct ieee80211_rx_stats *stats) 4853 { 4854 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data; 4855 4856 /* Get Rx Descriptor Information */ 4857 stats->virtual_address = (u8 *)skb->data; 4858 stats->Length = desc->Length; 4859 stats->RxDrvInfoSize = 0; 4860 stats->RxBufShift = 0; 4861 stats->packetlength = stats->Length - scrclng; 4862 stats->fraglength = stats->packetlength; 4863 stats->fragoffset = 0; 4864 stats->ntotalfrag = 1; 4865 } 4866 4867 4868 static void rtl8192_rx_cmd(struct sk_buff *skb) 4869 { 4870 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4871 struct net_device *dev = info->dev; 4872 /* TODO */ 4873 struct ieee80211_rx_stats stats = { 4874 .signal = 0, 4875 .noise = 0x100 - 98, 4876 .rate = 0, 4877 .freq = IEEE80211_24GHZ_BAND, 4878 }; 4879 4880 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4881 query_rx_cmdpkt_desc_status(skb, &stats); 4882 /* prfd->queue_id = 1; */ 4883 4884 /* Process the command packet received. */ 4885 4886 rtl819xusb_process_received_packet(dev, &stats); 4887 4888 dev_kfree_skb_any(skb); 4889 } 4890 } 4891 4892 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv) 4893 { 4894 struct sk_buff *skb; 4895 struct rtl8192_rx_info *info; 4896 4897 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) { 4898 info = (struct rtl8192_rx_info *)skb->cb; 4899 switch (info->out_pipe) { 4900 /* Nomal packet pipe */ 4901 case 3: 4902 priv->IrpPendingCount--; 4903 rtl8192_rx_nomal(skb); 4904 break; 4905 4906 /* Command packet pipe */ 4907 case 9: 4908 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n", 4909 info->out_pipe); 4910 4911 rtl8192_rx_cmd(skb); 4912 break; 4913 4914 default: /* should never get here! */ 4915 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n", 4916 info->out_pipe); 4917 dev_kfree_skb(skb); 4918 break; 4919 } 4920 } 4921 } 4922 4923 static const struct net_device_ops rtl8192_netdev_ops = { 4924 .ndo_open = rtl8192_open, 4925 .ndo_stop = rtl8192_close, 4926 .ndo_get_stats = rtl8192_stats, 4927 .ndo_tx_timeout = tx_timeout, 4928 .ndo_do_ioctl = rtl8192_ioctl, 4929 .ndo_set_rx_mode = r8192_set_multicast, 4930 .ndo_set_mac_address = r8192_set_mac_adr, 4931 .ndo_validate_addr = eth_validate_addr, 4932 .ndo_start_xmit = ieee80211_xmit, 4933 }; 4934 4935 4936 /**************************************************************************** 4937 * ---------------------------- USB_STUFF--------------------------- 4938 *****************************************************************************/ 4939 4940 static int rtl8192_usb_probe(struct usb_interface *intf, 4941 const struct usb_device_id *id) 4942 { 4943 struct net_device *dev = NULL; 4944 struct r8192_priv *priv = NULL; 4945 struct usb_device *udev = interface_to_usbdev(intf); 4946 int ret; 4947 4948 RT_TRACE(COMP_INIT, "Oops: i'm coming\n"); 4949 4950 dev = alloc_ieee80211(sizeof(struct r8192_priv)); 4951 if (!dev) 4952 return -ENOMEM; 4953 4954 usb_set_intfdata(intf, dev); 4955 SET_NETDEV_DEV(dev, &intf->dev); 4956 priv = ieee80211_priv(dev); 4957 priv->ieee80211 = netdev_priv(dev); 4958 priv->udev = udev; 4959 4960 dev->netdev_ops = &rtl8192_netdev_ops; 4961 4962 dev->wireless_handlers = &r8192_wx_handlers_def; 4963 4964 dev->type = ARPHRD_ETHER; 4965 4966 dev->watchdog_timeo = HZ * 3; 4967 4968 if (dev_alloc_name(dev, ifname) < 0) { 4969 RT_TRACE(COMP_INIT, 4970 "Oops: devname already taken! Trying wlan%%d...\n"); 4971 ifname = "wlan%d"; 4972 dev_alloc_name(dev, ifname); 4973 } 4974 4975 RT_TRACE(COMP_INIT, "Driver probe completed1\n"); 4976 if (rtl8192_init(dev) != 0) { 4977 RT_TRACE(COMP_ERR, "Initialization failed"); 4978 ret = -ENODEV; 4979 goto fail; 4980 } 4981 netif_carrier_off(dev); 4982 netif_stop_queue(dev); 4983 4984 ret = register_netdev(dev); 4985 if (ret) 4986 goto fail2; 4987 4988 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name); 4989 rtl8192_proc_init_one(dev); 4990 4991 4992 RT_TRACE(COMP_INIT, "Driver probe completed\n"); 4993 return 0; 4994 4995 fail2: 4996 rtl8192_down(dev); 4997 fail: 4998 kfree(priv->pFirmware); 4999 priv->pFirmware = NULL; 5000 rtl8192_usb_deleteendpoints(dev); 5001 msleep(10); 5002 free_ieee80211(dev); 5003 5004 RT_TRACE(COMP_ERR, "wlan driver load failed\n"); 5005 return ret; 5006 } 5007 5008 /* detach all the work and timer structure declared or inititialize 5009 * in r8192U_init function. 5010 */ 5011 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv) 5012 { 5013 cancel_work_sync(&priv->reset_wq); 5014 cancel_delayed_work(&priv->watch_dog_wq); 5015 cancel_delayed_work(&priv->update_beacon_wq); 5016 cancel_work_sync(&priv->qos_activate); 5017 } 5018 5019 5020 static void rtl8192_usb_disconnect(struct usb_interface *intf) 5021 { 5022 struct net_device *dev = usb_get_intfdata(intf); 5023 struct r8192_priv *priv = ieee80211_priv(dev); 5024 5025 if (dev) { 5026 unregister_netdev(dev); 5027 5028 RT_TRACE(COMP_DOWN, 5029 "=============>wlan driver to be removed\n"); 5030 rtl8192_proc_remove_one(dev); 5031 5032 rtl8192_down(dev); 5033 kfree(priv->pFirmware); 5034 priv->pFirmware = NULL; 5035 rtl8192_usb_deleteendpoints(dev); 5036 mdelay(10); 5037 } 5038 free_ieee80211(dev); 5039 RT_TRACE(COMP_DOWN, "wlan driver removed\n"); 5040 } 5041 5042 static int __init rtl8192_usb_module_init(void) 5043 { 5044 int ret; 5045 5046 #ifdef CONFIG_IEEE80211_DEBUG 5047 ret = ieee80211_debug_init(); 5048 if (ret) { 5049 pr_err("ieee80211_debug_init() failed %d\n", ret); 5050 return ret; 5051 } 5052 #endif 5053 ret = ieee80211_crypto_init(); 5054 if (ret) { 5055 pr_err("ieee80211_crypto_init() failed %d\n", ret); 5056 return ret; 5057 } 5058 5059 ret = ieee80211_crypto_tkip_init(); 5060 if (ret) { 5061 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret); 5062 return ret; 5063 } 5064 5065 ret = ieee80211_crypto_ccmp_init(); 5066 if (ret) { 5067 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret); 5068 return ret; 5069 } 5070 5071 ret = ieee80211_crypto_wep_init(); 5072 if (ret) { 5073 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret); 5074 return ret; 5075 } 5076 5077 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n"); 5078 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n"); 5079 RT_TRACE(COMP_INIT, "Initializing module"); 5080 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT); 5081 rtl8192_proc_module_init(); 5082 return usb_register(&rtl8192_usb_driver); 5083 } 5084 5085 5086 static void __exit rtl8192_usb_module_exit(void) 5087 { 5088 usb_deregister(&rtl8192_usb_driver); 5089 5090 RT_TRACE(COMP_DOWN, "Exiting"); 5091 } 5092 5093 void EnableHWSecurityConfig8192(struct net_device *dev) 5094 { 5095 u8 SECR_value = 0x0; 5096 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 5097 struct ieee80211_device *ieee = priv->ieee80211; 5098 5099 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable; 5100 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) { 5101 SECR_value |= SCR_RxUseDK; 5102 SECR_value |= SCR_TxUseDK; 5103 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) { 5104 SECR_value |= SCR_RxUseDK; 5105 SECR_value |= SCR_TxUseDK; 5106 } 5107 /* add HWSec active enable here. 5108 * default using hwsec. when peer AP is in N mode only and 5109 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates 5110 * it), use software security. when peer AP is in b,g,n mode mixed and 5111 * pairwise_key_type is none_aes, use g mode hw security. 5112 */ 5113 5114 ieee->hwsec_active = 1; 5115 5116 /* add hwsec_support flag to totol control hw_sec on/off */ 5117 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) { 5118 ieee->hwsec_active = 0; 5119 SECR_value &= ~SCR_RxDecEnable; 5120 } 5121 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n", 5122 __func__, ieee->hwsec_active, ieee->pairwise_key_type, 5123 SECR_value); 5124 write_nic_byte(dev, SECR, SECR_value); 5125 } 5126 5127 5128 void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType, 5129 u8 *MacAddr, u8 DefaultKey, u32 *KeyContent) 5130 { 5131 u32 TargetCommand = 0; 5132 u32 TargetContent = 0; 5133 u16 usConfig = 0; 5134 u8 i; 5135 5136 if (EntryNo >= TOTAL_CAM_ENTRY) 5137 RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n"); 5138 5139 RT_TRACE(COMP_SEC, 5140 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n", 5141 dev, EntryNo, KeyIndex, KeyType, MacAddr); 5142 5143 if (DefaultKey) 5144 usConfig |= BIT(15) | (KeyType << 2); 5145 else 5146 usConfig |= BIT(15) | (KeyType << 2) | KeyIndex; 5147 5148 5149 for (i = 0; i < CAM_CONTENT_COUNT; i++) { 5150 TargetCommand = i + CAM_CONTENT_COUNT * EntryNo; 5151 TargetCommand |= BIT(31) | BIT(16); 5152 5153 if (i == 0) { /* MAC|Config */ 5154 TargetContent = (u32)(*(MacAddr + 0)) << 16 | 5155 (u32)(*(MacAddr + 1)) << 24 | 5156 (u32)usConfig; 5157 5158 write_nic_dword(dev, WCAMI, TargetContent); 5159 write_nic_dword(dev, RWCAM, TargetCommand); 5160 } else if (i == 1) { /* MAC */ 5161 TargetContent = (u32)(*(MacAddr + 2)) | 5162 (u32)(*(MacAddr + 3)) << 8 | 5163 (u32)(*(MacAddr + 4)) << 16 | 5164 (u32)(*(MacAddr + 5)) << 24; 5165 write_nic_dword(dev, WCAMI, TargetContent); 5166 write_nic_dword(dev, RWCAM, TargetCommand); 5167 } else { 5168 /* Key Material */ 5169 if (KeyContent) { 5170 write_nic_dword(dev, WCAMI, 5171 *(KeyContent + i - 2)); 5172 write_nic_dword(dev, RWCAM, TargetCommand); 5173 } 5174 } 5175 } 5176 } 5177 5178 /*************************************************************************** 5179 * ------------------- module init / exit stubs ---------------- 5180 ****************************************************************************/ 5181 module_init(rtl8192_usb_module_init); 5182 module_exit(rtl8192_usb_module_exit); 5183