1 // SPDX-License-Identifier: GPL-2.0 2 /****************************************************************************** 3 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. 4 * Linux device driver for RTL8192U 5 * 6 * Based on the r8187 driver, which is: 7 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al. 8 * 9 * Contact Information: 10 * Jerry chuang <wlanfae@realtek.com> 11 */ 12 13 #ifndef CONFIG_FORCE_HARD_FLOAT 14 double __floatsidf(int i) 15 { 16 return i; 17 } 18 19 unsigned int __fixunsdfsi(double d) 20 { 21 return d; 22 } 23 24 double __adddf3(double a, double b) 25 { 26 return a + b; 27 } 28 29 double __addsf3(float a, float b) 30 { 31 return a + b; 32 } 33 34 double __subdf3(double a, double b) 35 { 36 return a - b; 37 } 38 39 double __extendsfdf2(float a) 40 { 41 return a; 42 } 43 #endif 44 45 #define CONFIG_RTL8192_IO_MAP 46 47 #include <linux/uaccess.h> 48 #include "r8192U_hw.h" 49 #include "r8192U.h" 50 #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */ 51 #include "r8180_93cx6.h" /* Card EEPROM */ 52 #include "r8192U_wx.h" 53 #include "r819xU_phy.h" 54 #include "r819xU_phyreg.h" 55 #include "r819xU_cmdpkt.h" 56 #include "r8192U_dm.h" 57 #include <linux/usb.h> 58 #include <linux/slab.h> 59 #include <linux/proc_fs.h> 60 #include <linux/seq_file.h> 61 /* FIXME: check if 2.6.7 is ok */ 62 63 #include "ieee80211/dot11d.h" 64 /* set here to open your trace code. */ 65 u32 rt_global_debug_component = COMP_DOWN | 66 COMP_SEC | 67 COMP_ERR; /* always open err flags on */ 68 69 #define TOTAL_CAM_ENTRY 32 70 #define CAM_CONTENT_COUNT 8 71 72 static const struct usb_device_id rtl8192_usb_id_tbl[] = { 73 /* Realtek */ 74 {USB_DEVICE(0x0bda, 0x8709)}, 75 /* Corega */ 76 {USB_DEVICE(0x07aa, 0x0043)}, 77 /* Belkin */ 78 {USB_DEVICE(0x050d, 0x805E)}, 79 /* Sitecom */ 80 {USB_DEVICE(0x0df6, 0x0031)}, 81 /* EnGenius */ 82 {USB_DEVICE(0x1740, 0x9201)}, 83 /* Dlink */ 84 {USB_DEVICE(0x2001, 0x3301)}, 85 /* Zinwell */ 86 {USB_DEVICE(0x5a57, 0x0290)}, 87 /* LG */ 88 {USB_DEVICE(0x043e, 0x7a01)}, 89 {} 90 }; 91 92 MODULE_LICENSE("GPL"); 93 MODULE_VERSION("V 1.1"); 94 MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl); 95 MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards"); 96 97 static char *ifname = "wlan%d"; 98 static int hwwep = 1; /* default use hw. set 0 to use software security */ 99 100 module_param(ifname, charp, 0644); 101 module_param(hwwep, int, 0644); 102 103 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); 104 MODULE_PARM_DESC(hwwep, " Try to use hardware security support. "); 105 106 static int rtl8192_usb_probe(struct usb_interface *intf, 107 const struct usb_device_id *id); 108 static void rtl8192_usb_disconnect(struct usb_interface *intf); 109 110 static struct usb_driver rtl8192_usb_driver = { 111 .name = RTL819XU_MODULE_NAME, /* Driver name */ 112 .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */ 113 .probe = rtl8192_usb_probe, /* probe fn */ 114 .disconnect = rtl8192_usb_disconnect, /* remove fn */ 115 .suspend = NULL, /* PM suspend fn */ 116 .resume = NULL, /* PM resume fn */ 117 }; 118 119 struct CHANNEL_LIST { 120 u8 Channel[32]; 121 u8 Len; 122 }; 123 124 static struct CHANNEL_LIST ChannelPlan[] = { 125 /* FCC */ 126 {{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}, 127 /* IC */ 128 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11}, 129 /* ETSI */ 130 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21}, 131 /* Spain. Change to ETSI. */ 132 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, 133 /* France. Change to ETSI. */ 134 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, 135 /* MKK */ 136 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 137 /* MKK1 */ 138 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 139 /* Israel. */ 140 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, 141 /* For 11a , TELEC */ 142 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 143 /* MIC */ 144 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 145 /* For Global Domain. 1-11:active scan, 12-14 passive scan. */ 146 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14} 147 }; 148 149 static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv) 150 { 151 int i, max_chan = -1, min_chan = -1; 152 struct ieee80211_device *ieee = priv->ieee80211; 153 154 switch (channel_plan) { 155 case COUNTRY_CODE_FCC: 156 case COUNTRY_CODE_IC: 157 case COUNTRY_CODE_ETSI: 158 case COUNTRY_CODE_SPAIN: 159 case COUNTRY_CODE_FRANCE: 160 case COUNTRY_CODE_MKK: 161 case COUNTRY_CODE_MKK1: 162 case COUNTRY_CODE_ISRAEL: 163 case COUNTRY_CODE_TELEC: 164 case COUNTRY_CODE_MIC: 165 rtl8192u_dot11d_init(ieee); 166 ieee->bGlobalDomain = false; 167 /* actually 8225 & 8256 rf chips only support B,G,24N mode */ 168 if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) { 169 min_chan = 1; 170 max_chan = 14; 171 } else { 172 RT_TRACE(COMP_ERR, 173 "unknown rf chip, can't set channel map in function:%s()\n", 174 __func__); 175 } 176 if (ChannelPlan[channel_plan].Len != 0) { 177 /* Clear old channel map */ 178 memset(GET_DOT11D_INFO(ieee)->channel_map, 0, 179 sizeof(GET_DOT11D_INFO(ieee)->channel_map)); 180 /* Set new channel map */ 181 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) { 182 if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan) 183 break; 184 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1; 185 } 186 } 187 break; 188 189 case COUNTRY_CODE_GLOBAL_DOMAIN: 190 /* this flag enabled to follow 11d country IE setting, 191 * otherwise, it shall follow global domain settings. 192 */ 193 GET_DOT11D_INFO(ieee)->dot11d_enabled = 0; 194 dot11d_reset(ieee); 195 ieee->bGlobalDomain = true; 196 break; 197 198 default: 199 break; 200 } 201 } 202 203 static void CamResetAllEntry(struct net_device *dev) 204 { 205 u32 ulcommand = 0; 206 /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA 207 * associate to AP. However, ResetKey is called on 208 * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this 209 * condition, Cam can not be reset because upper layer will not set 210 * this static key again. 211 */ 212 ulcommand |= BIT(31) | BIT(30); 213 write_nic_dword(dev, RWCAM, ulcommand); 214 } 215 216 int write_nic_byte_E(struct net_device *dev, int indx, u8 data) 217 { 218 int status; 219 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 220 struct usb_device *udev = priv->udev; 221 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 222 223 if (!usbdata) 224 return -ENOMEM; 225 *usbdata = data; 226 227 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 228 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 229 indx | 0xfe00, 0, usbdata, 1, 500); 230 kfree(usbdata); 231 232 if (status < 0) { 233 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 234 return status; 235 } 236 return 0; 237 } 238 239 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data) 240 { 241 int status; 242 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 243 struct usb_device *udev = priv->udev; 244 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); 245 246 if (!usbdata) 247 return -ENOMEM; 248 249 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 250 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 251 indx | 0xfe00, 0, usbdata, 1, 500); 252 *data = *usbdata; 253 kfree(usbdata); 254 255 if (status < 0) { 256 netdev_err(dev, "%s failure status: %d\n", __func__, status); 257 return status; 258 } 259 260 return 0; 261 } 262 263 /* as 92U has extend page from 4 to 16, so modify functions below. */ 264 int write_nic_byte(struct net_device *dev, int indx, u8 data) 265 { 266 int status; 267 268 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 269 struct usb_device *udev = priv->udev; 270 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 271 272 if (!usbdata) 273 return -ENOMEM; 274 *usbdata = data; 275 276 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 277 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 278 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 279 usbdata, 1, 500); 280 kfree(usbdata); 281 282 if (status < 0) { 283 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 284 return status; 285 } 286 287 return 0; 288 } 289 290 int write_nic_word(struct net_device *dev, int indx, u16 data) 291 { 292 int status; 293 294 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 295 struct usb_device *udev = priv->udev; 296 u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 297 298 if (!usbdata) 299 return -ENOMEM; 300 *usbdata = data; 301 302 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 303 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 304 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 305 usbdata, 2, 500); 306 kfree(usbdata); 307 308 if (status < 0) { 309 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 310 return status; 311 } 312 313 return 0; 314 } 315 316 int write_nic_dword(struct net_device *dev, int indx, u32 data) 317 { 318 int status; 319 320 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 321 struct usb_device *udev = priv->udev; 322 u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 323 324 if (!usbdata) 325 return -ENOMEM; 326 *usbdata = data; 327 328 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 329 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 330 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 331 usbdata, 4, 500); 332 kfree(usbdata); 333 334 if (status < 0) { 335 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 336 return status; 337 } 338 339 return 0; 340 } 341 342 int read_nic_byte(struct net_device *dev, int indx, u8 *data) 343 { 344 int status; 345 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 346 struct usb_device *udev = priv->udev; 347 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); 348 349 if (!usbdata) 350 return -ENOMEM; 351 352 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 353 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 354 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 355 usbdata, 1, 500); 356 *data = *usbdata; 357 kfree(usbdata); 358 359 if (status < 0) { 360 netdev_err(dev, "%s failure status: %d\n", __func__, status); 361 return status; 362 } 363 364 return 0; 365 } 366 367 int read_nic_word(struct net_device *dev, int indx, u16 *data) 368 { 369 int status; 370 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 371 struct usb_device *udev = priv->udev; 372 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); 373 374 if (!usbdata) 375 return -ENOMEM; 376 377 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 378 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 379 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 380 usbdata, 2, 500); 381 *data = *usbdata; 382 kfree(usbdata); 383 384 if (status < 0) { 385 netdev_err(dev, "%s failure status: %d\n", __func__, status); 386 return status; 387 } 388 389 return 0; 390 } 391 392 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data) 393 { 394 int status; 395 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 396 struct usb_device *udev = priv->udev; 397 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); 398 399 if (!usbdata) 400 return -ENOMEM; 401 402 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 403 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 404 indx | 0xfe00, 0, usbdata, 2, 500); 405 *data = *usbdata; 406 kfree(usbdata); 407 408 if (status < 0) { 409 netdev_err(dev, "%s failure status: %d\n", __func__, status); 410 return status; 411 } 412 413 return 0; 414 } 415 416 int read_nic_dword(struct net_device *dev, int indx, u32 *data) 417 { 418 int status; 419 420 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 421 struct usb_device *udev = priv->udev; 422 u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL); 423 424 if (!usbdata) 425 return -ENOMEM; 426 427 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 428 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 429 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 430 usbdata, 4, 500); 431 *data = *usbdata; 432 kfree(usbdata); 433 434 if (status < 0) { 435 netdev_err(dev, "%s failure status: %d\n", __func__, status); 436 return status; 437 } 438 439 return 0; 440 } 441 442 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */ 443 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */ 444 /* this might still called in what was the PHY rtl8185/rtl8192 common code 445 * plans are to possibility turn it again in one common code... 446 */ 447 inline void force_pci_posting(struct net_device *dev) 448 { 449 } 450 451 static struct net_device_stats *rtl8192_stats(struct net_device *dev); 452 static void rtl8192_restart(struct work_struct *work); 453 static void watch_dog_timer_callback(struct timer_list *t); 454 455 /**************************************************************************** 456 * -----------------------------PROCFS STUFF------------------------- 457 ****************************************************************************/ 458 459 static struct proc_dir_entry *rtl8192_proc; 460 461 static int __maybe_unused proc_get_stats_ap(struct seq_file *m, void *v) 462 { 463 struct net_device *dev = m->private; 464 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 465 struct ieee80211_device *ieee = priv->ieee80211; 466 struct ieee80211_network *target; 467 468 list_for_each_entry(target, &ieee->network_list, list) { 469 const char *wpa = "non_WPA"; 470 471 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0) 472 wpa = "WPA"; 473 474 seq_printf(m, "%s %s\n", target->ssid, wpa); 475 } 476 477 return 0; 478 } 479 480 static int __maybe_unused proc_get_registers(struct seq_file *m, void *v) 481 { 482 struct net_device *dev = m->private; 483 int i, n, max = 0xff; 484 u8 byte_rd; 485 486 seq_puts(m, "\n####################page 0##################\n "); 487 488 for (n = 0; n <= max;) { 489 seq_printf(m, "\nD: %2x > ", n); 490 491 for (i = 0; i < 16 && n <= max; i++, n++) { 492 read_nic_byte(dev, 0x000 | n, &byte_rd); 493 seq_printf(m, "%2x ", byte_rd); 494 } 495 } 496 497 seq_puts(m, "\n####################page 1##################\n "); 498 for (n = 0; n <= max;) { 499 seq_printf(m, "\nD: %2x > ", n); 500 501 for (i = 0; i < 16 && n <= max; i++, n++) { 502 read_nic_byte(dev, 0x100 | n, &byte_rd); 503 seq_printf(m, "%2x ", byte_rd); 504 } 505 } 506 507 seq_puts(m, "\n####################page 3##################\n "); 508 for (n = 0; n <= max;) { 509 seq_printf(m, "\nD: %2x > ", n); 510 511 for (i = 0; i < 16 && n <= max; i++, n++) { 512 read_nic_byte(dev, 0x300 | n, &byte_rd); 513 seq_printf(m, "%2x ", byte_rd); 514 } 515 } 516 517 seq_putc(m, '\n'); 518 return 0; 519 } 520 521 static int __maybe_unused proc_get_stats_tx(struct seq_file *m, void *v) 522 { 523 struct net_device *dev = m->private; 524 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 525 526 seq_printf(m, 527 "TX VI priority ok int: %lu\n" 528 "TX VI priority error int: %lu\n" 529 "TX VO priority ok int: %lu\n" 530 "TX VO priority error int: %lu\n" 531 "TX BE priority ok int: %lu\n" 532 "TX BE priority error int: %lu\n" 533 "TX BK priority ok int: %lu\n" 534 "TX BK priority error int: %lu\n" 535 "TX MANAGE priority ok int: %lu\n" 536 "TX MANAGE priority error int: %lu\n" 537 "TX BEACON priority ok int: %lu\n" 538 "TX BEACON priority error int: %lu\n" 539 "TX queue resume: %lu\n" 540 "TX queue stopped?: %d\n" 541 "TX fifo overflow: %lu\n" 542 "TX VI queue: %d\n" 543 "TX VO queue: %d\n" 544 "TX BE queue: %d\n" 545 "TX BK queue: %d\n" 546 "TX VI dropped: %lu\n" 547 "TX VO dropped: %lu\n" 548 "TX BE dropped: %lu\n" 549 "TX BK dropped: %lu\n" 550 "TX total data packets %lu\n", 551 priv->stats.txviokint, 552 priv->stats.txvierr, 553 priv->stats.txvookint, 554 priv->stats.txvoerr, 555 priv->stats.txbeokint, 556 priv->stats.txbeerr, 557 priv->stats.txbkokint, 558 priv->stats.txbkerr, 559 priv->stats.txmanageokint, 560 priv->stats.txmanageerr, 561 priv->stats.txbeaconokint, 562 priv->stats.txbeaconerr, 563 priv->stats.txresumed, 564 netif_queue_stopped(dev), 565 priv->stats.txoverflow, 566 atomic_read(&(priv->tx_pending[VI_PRIORITY])), 567 atomic_read(&(priv->tx_pending[VO_PRIORITY])), 568 atomic_read(&(priv->tx_pending[BE_PRIORITY])), 569 atomic_read(&(priv->tx_pending[BK_PRIORITY])), 570 priv->stats.txvidrop, 571 priv->stats.txvodrop, 572 priv->stats.txbedrop, 573 priv->stats.txbkdrop, 574 priv->stats.txdatapkt 575 ); 576 577 return 0; 578 } 579 580 static int __maybe_unused proc_get_stats_rx(struct seq_file *m, void *v) 581 { 582 struct net_device *dev = m->private; 583 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 584 585 seq_printf(m, 586 "RX packets: %lu\n" 587 "RX urb status error: %lu\n" 588 "RX invalid urb error: %lu\n", 589 priv->stats.rxoktotal, 590 priv->stats.rxstaterr, 591 priv->stats.rxurberr); 592 593 return 0; 594 } 595 596 static void rtl8192_proc_module_init(void) 597 { 598 RT_TRACE(COMP_INIT, "Initializing proc filesystem"); 599 rtl8192_proc = proc_mkdir(RTL819XU_MODULE_NAME, init_net.proc_net); 600 } 601 602 static void rtl8192_proc_init_one(struct net_device *dev) 603 { 604 struct proc_dir_entry *dir; 605 606 if (!rtl8192_proc) 607 return; 608 609 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); 610 if (!dir) 611 return; 612 613 proc_create_single("stats-rx", S_IFREG | 0444, dir, 614 proc_get_stats_rx); 615 proc_create_single("stats-tx", S_IFREG | 0444, dir, 616 proc_get_stats_tx); 617 proc_create_single("stats-ap", S_IFREG | 0444, dir, 618 proc_get_stats_ap); 619 proc_create_single("registers", S_IFREG | 0444, dir, 620 proc_get_registers); 621 } 622 623 static void rtl8192_proc_remove_one(struct net_device *dev) 624 { 625 remove_proc_subtree(dev->name, rtl8192_proc); 626 } 627 628 /**************************************************************************** 629 * -----------------------------MISC STUFF------------------------- 630 *****************************************************************************/ 631 632 short check_nic_enough_desc(struct net_device *dev, int queue_index) 633 { 634 struct r8192_priv *priv = ieee80211_priv(dev); 635 int used = atomic_read(&priv->tx_pending[queue_index]); 636 637 return (used < MAX_TX_URB); 638 } 639 640 static void tx_timeout(struct net_device *dev, unsigned int txqueue) 641 { 642 struct r8192_priv *priv = ieee80211_priv(dev); 643 644 schedule_work(&priv->reset_wq); 645 } 646 647 void rtl8192_update_msr(struct net_device *dev) 648 { 649 struct r8192_priv *priv = ieee80211_priv(dev); 650 u8 msr; 651 652 read_nic_byte(dev, MSR, &msr); 653 msr &= ~MSR_LINK_MASK; 654 655 /* do not change in link_state != WLAN_LINK_ASSOCIATED. 656 * msr must be updated if the state is ASSOCIATING. 657 * this is intentional and make sense for ad-hoc and 658 * master (see the create BSS/IBSS func) 659 */ 660 if (priv->ieee80211->state == IEEE80211_LINKED) { 661 if (priv->ieee80211->iw_mode == IW_MODE_INFRA) 662 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT); 663 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 664 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT); 665 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER) 666 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT); 667 668 } else { 669 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT); 670 } 671 672 write_nic_byte(dev, MSR, msr); 673 } 674 675 void rtl8192_set_chan(struct net_device *dev, short ch) 676 { 677 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 678 679 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch); 680 priv->chan = ch; 681 682 /* this hack should avoid frame TX during channel setting*/ 683 684 /* need to implement rf set channel here */ 685 686 if (priv->rf_set_chan) 687 priv->rf_set_chan(dev, priv->chan); 688 mdelay(10); 689 } 690 691 static void rtl8192_rx_isr(struct urb *urb); 692 693 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats) 694 { 695 return (sizeof(struct rx_desc_819x_usb) + pstats->RxDrvInfoSize 696 + pstats->RxBufShift); 697 } 698 699 void rtl8192_rx_enable(struct net_device *dev) 700 { 701 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 702 struct urb *entry; 703 struct sk_buff *skb; 704 struct rtl8192_rx_info *info; 705 706 /* nomal packet rx procedure */ 707 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) { 708 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); 709 if (!skb) 710 break; 711 entry = usb_alloc_urb(0, GFP_KERNEL); 712 if (!entry) { 713 kfree_skb(skb); 714 break; 715 } 716 usb_fill_bulk_urb(entry, priv->udev, 717 usb_rcvbulkpipe(priv->udev, 3), 718 skb_tail_pointer(skb), 719 RX_URB_SIZE, rtl8192_rx_isr, skb); 720 info = (struct rtl8192_rx_info *)skb->cb; 721 info->urb = entry; 722 info->dev = dev; 723 info->out_pipe = 3; /* denote rx normal packet queue */ 724 skb_queue_tail(&priv->rx_queue, skb); 725 usb_submit_urb(entry, GFP_KERNEL); 726 } 727 728 /* command packet rx procedure */ 729 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) { 730 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); 731 if (!skb) 732 break; 733 entry = usb_alloc_urb(0, GFP_KERNEL); 734 if (!entry) { 735 kfree_skb(skb); 736 break; 737 } 738 usb_fill_bulk_urb(entry, priv->udev, 739 usb_rcvbulkpipe(priv->udev, 9), 740 skb_tail_pointer(skb), 741 RX_URB_SIZE, rtl8192_rx_isr, skb); 742 info = (struct rtl8192_rx_info *)skb->cb; 743 info->urb = entry; 744 info->dev = dev; 745 info->out_pipe = 9; /* denote rx cmd packet queue */ 746 skb_queue_tail(&priv->rx_queue, skb); 747 usb_submit_urb(entry, GFP_KERNEL); 748 } 749 } 750 751 void rtl8192_set_rxconf(struct net_device *dev) 752 { 753 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 754 u32 rxconf; 755 756 read_nic_dword(dev, RCR, &rxconf); 757 rxconf = rxconf & ~MAC_FILTER_MASK; 758 rxconf = rxconf | RCR_AMF; 759 rxconf = rxconf | RCR_ADF; 760 rxconf = rxconf | RCR_AB; 761 rxconf = rxconf | RCR_AM; 762 763 if (dev->flags & IFF_PROMISC) 764 DMESG("NIC in promisc mode"); 765 766 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR || 767 dev->flags & IFF_PROMISC) { 768 rxconf = rxconf | RCR_AAP; 769 } else { 770 rxconf = rxconf | RCR_APM; 771 rxconf = rxconf | RCR_CBSSID; 772 } 773 774 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) { 775 rxconf = rxconf | RCR_AICV; 776 rxconf = rxconf | RCR_APWRMGT; 777 } 778 779 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR) 780 rxconf = rxconf | RCR_ACRC32; 781 782 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK; 783 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT); 784 rxconf = rxconf & ~MAX_RX_DMA_MASK; 785 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET); 786 787 rxconf = rxconf | RCR_ONLYERLPKT; 788 789 write_nic_dword(dev, RCR, rxconf); 790 } 791 792 void rtl8192_rtx_disable(struct net_device *dev) 793 { 794 u8 cmd; 795 struct r8192_priv *priv = ieee80211_priv(dev); 796 struct sk_buff *skb; 797 struct rtl8192_rx_info *info; 798 799 read_nic_byte(dev, CMDR, &cmd); 800 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE)); 801 force_pci_posting(dev); 802 mdelay(10); 803 804 while ((skb = __skb_dequeue(&priv->rx_queue))) { 805 info = (struct rtl8192_rx_info *)skb->cb; 806 if (!info->urb) 807 continue; 808 809 usb_kill_urb(info->urb); 810 kfree_skb(skb); 811 } 812 813 if (skb_queue_len(&priv->skb_queue)) 814 netdev_warn(dev, "skb_queue not empty\n"); 815 816 skb_queue_purge(&priv->skb_queue); 817 } 818 819 /* The prototype of rx_isr has changed since one version of Linux Kernel */ 820 static void rtl8192_rx_isr(struct urb *urb) 821 { 822 struct sk_buff *skb = (struct sk_buff *)urb->context; 823 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 824 struct net_device *dev = info->dev; 825 struct r8192_priv *priv = ieee80211_priv(dev); 826 int out_pipe = info->out_pipe; 827 int err; 828 829 if (!priv->up) 830 return; 831 832 if (unlikely(urb->status)) { 833 info->urb = NULL; 834 priv->stats.rxstaterr++; 835 priv->ieee80211->stats.rx_errors++; 836 usb_free_urb(urb); 837 return; 838 } 839 skb_unlink(skb, &priv->rx_queue); 840 skb_put(skb, urb->actual_length); 841 842 skb_queue_tail(&priv->skb_queue, skb); 843 tasklet_schedule(&priv->irq_rx_tasklet); 844 845 skb = dev_alloc_skb(RX_URB_SIZE); 846 if (unlikely(!skb)) { 847 usb_free_urb(urb); 848 netdev_err(dev, "%s(): can't alloc skb\n", __func__); 849 /* TODO check rx queue length and refill *somewhere* */ 850 return; 851 } 852 853 usb_fill_bulk_urb(urb, priv->udev, 854 usb_rcvbulkpipe(priv->udev, out_pipe), 855 skb_tail_pointer(skb), 856 RX_URB_SIZE, rtl8192_rx_isr, skb); 857 858 info = (struct rtl8192_rx_info *)skb->cb; 859 info->urb = urb; 860 info->dev = dev; 861 info->out_pipe = out_pipe; 862 863 urb->transfer_buffer = skb_tail_pointer(skb); 864 urb->context = skb; 865 skb_queue_tail(&priv->rx_queue, skb); 866 err = usb_submit_urb(urb, GFP_ATOMIC); 867 if (err && err != -EPERM) 868 netdev_err(dev, 869 "can not submit rxurb, err is %x, URB status is %x\n", 870 err, urb->status); 871 } 872 873 static u32 rtl819xusb_rx_command_packet(struct net_device *dev, 874 struct ieee80211_rx_stats *pstats) 875 { 876 u32 status; 877 878 status = cmpk_message_handle_rx(dev, pstats); 879 if (status) 880 DMESG("rxcommandpackethandle819xusb: It is a command packet\n"); 881 882 return status; 883 } 884 885 static void rtl8192_data_hard_stop(struct net_device *dev) 886 { 887 /* FIXME !! */ 888 } 889 890 static void rtl8192_data_hard_resume(struct net_device *dev) 891 { 892 /* FIXME !! */ 893 } 894 895 /* this function TX data frames when the ieee80211 stack requires this. 896 * It checks also if we need to stop the ieee tx queue, eventually do it 897 */ 898 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev, 899 int rate) 900 { 901 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 902 unsigned long flags; 903 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 904 u8 queue_index = tcb_desc->queue_index; 905 906 /* shall not be referred by command packet */ 907 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE); 908 909 spin_lock_irqsave(&priv->tx_lock, flags); 910 911 *(struct net_device **)(skb->cb) = dev; 912 tcb_desc->bTxEnableFwCalcDur = 1; 913 skb_push(skb, priv->ieee80211->tx_headroom); 914 rtl8192_tx(dev, skb); 915 916 spin_unlock_irqrestore(&priv->tx_lock, flags); 917 } 918 919 /* This is a rough attempt to TX a frame 920 * This is called by the ieee 80211 stack to TX management frames. 921 * If the ring is full packet are dropped (for data frame the queue 922 * is stopped before this can happen). 923 */ 924 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 925 { 926 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 927 int ret; 928 unsigned long flags; 929 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 930 u8 queue_index = tcb_desc->queue_index; 931 932 spin_lock_irqsave(&priv->tx_lock, flags); 933 934 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev)); 935 if (queue_index == TXCMD_QUEUE) { 936 skb_push(skb, USB_HWDESC_HEADER_LEN); 937 rtl819xU_tx_cmd(dev, skb); 938 ret = 1; 939 } else { 940 skb_push(skb, priv->ieee80211->tx_headroom); 941 ret = rtl8192_tx(dev, skb); 942 } 943 944 spin_unlock_irqrestore(&priv->tx_lock, flags); 945 946 return ret; 947 } 948 949 static void rtl8192_tx_isr(struct urb *tx_urb) 950 { 951 struct sk_buff *skb = (struct sk_buff *)tx_urb->context; 952 struct net_device *dev; 953 struct r8192_priv *priv = NULL; 954 struct cb_desc *tcb_desc; 955 u8 queue_index; 956 957 if (!skb) 958 return; 959 960 dev = *(struct net_device **)(skb->cb); 961 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 962 queue_index = tcb_desc->queue_index; 963 964 priv = ieee80211_priv(dev); 965 966 if (tcb_desc->queue_index != TXCMD_QUEUE) { 967 if (tx_urb->status == 0) { 968 netif_trans_update(dev); 969 priv->stats.txoktotal++; 970 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++; 971 priv->stats.txbytesunicast += 972 (skb->len - priv->ieee80211->tx_headroom); 973 } else { 974 priv->ieee80211->stats.tx_errors++; 975 /* TODO */ 976 } 977 } 978 979 /* free skb and tx_urb */ 980 dev_kfree_skb_any(skb); 981 usb_free_urb(tx_urb); 982 atomic_dec(&priv->tx_pending[queue_index]); 983 984 /* 985 * Handle HW Beacon: 986 * We had transfer our beacon frame to host controller at this moment. 987 * 988 * 989 * Caution: 990 * Handling the wait queue of command packets. 991 * For Tx command packets, we must not do TCB fragment because it is 992 * not handled right now. We must cut the packets to match the size of 993 * TX_CMD_PKT before we send it. 994 */ 995 996 /* Handle MPDU in wait queue. */ 997 if (queue_index != BEACON_QUEUE) { 998 /* Don't send data frame during scanning.*/ 999 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) && 1000 (!(priv->ieee80211->queue_stop))) { 1001 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index])); 1002 if (skb) 1003 priv->ieee80211->softmac_hard_start_xmit(skb, 1004 dev); 1005 1006 return; /* avoid further processing AMSDU */ 1007 } 1008 } 1009 } 1010 1011 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config) 1012 { 1013 struct r8192_priv *priv = ieee80211_priv(dev); 1014 struct ieee80211_network *net; 1015 u8 i = 0, basic_rate = 0; 1016 1017 net = &priv->ieee80211->current_network; 1018 1019 for (i = 0; i < net->rates_len; i++) { 1020 basic_rate = net->rates[i] & 0x7f; 1021 switch (basic_rate) { 1022 case MGN_1M: 1023 *rate_config |= RRSR_1M; 1024 break; 1025 case MGN_2M: 1026 *rate_config |= RRSR_2M; 1027 break; 1028 case MGN_5_5M: 1029 *rate_config |= RRSR_5_5M; 1030 break; 1031 case MGN_11M: 1032 *rate_config |= RRSR_11M; 1033 break; 1034 case MGN_6M: 1035 *rate_config |= RRSR_6M; 1036 break; 1037 case MGN_9M: 1038 *rate_config |= RRSR_9M; 1039 break; 1040 case MGN_12M: 1041 *rate_config |= RRSR_12M; 1042 break; 1043 case MGN_18M: 1044 *rate_config |= RRSR_18M; 1045 break; 1046 case MGN_24M: 1047 *rate_config |= RRSR_24M; 1048 break; 1049 case MGN_36M: 1050 *rate_config |= RRSR_36M; 1051 break; 1052 case MGN_48M: 1053 *rate_config |= RRSR_48M; 1054 break; 1055 case MGN_54M: 1056 *rate_config |= RRSR_54M; 1057 break; 1058 } 1059 } 1060 for (i = 0; i < net->rates_ex_len; i++) { 1061 basic_rate = net->rates_ex[i] & 0x7f; 1062 switch (basic_rate) { 1063 case MGN_1M: 1064 *rate_config |= RRSR_1M; 1065 break; 1066 case MGN_2M: 1067 *rate_config |= RRSR_2M; 1068 break; 1069 case MGN_5_5M: 1070 *rate_config |= RRSR_5_5M; 1071 break; 1072 case MGN_11M: 1073 *rate_config |= RRSR_11M; 1074 break; 1075 case MGN_6M: 1076 *rate_config |= RRSR_6M; 1077 break; 1078 case MGN_9M: 1079 *rate_config |= RRSR_9M; 1080 break; 1081 case MGN_12M: 1082 *rate_config |= RRSR_12M; 1083 break; 1084 case MGN_18M: 1085 *rate_config |= RRSR_18M; 1086 break; 1087 case MGN_24M: 1088 *rate_config |= RRSR_24M; 1089 break; 1090 case MGN_36M: 1091 *rate_config |= RRSR_36M; 1092 break; 1093 case MGN_48M: 1094 *rate_config |= RRSR_48M; 1095 break; 1096 case MGN_54M: 1097 *rate_config |= RRSR_54M; 1098 break; 1099 } 1100 } 1101 } 1102 1103 #define SHORT_SLOT_TIME 9 1104 #define NON_SHORT_SLOT_TIME 20 1105 1106 static void rtl8192_update_cap(struct net_device *dev, u16 cap) 1107 { 1108 u32 tmp = 0; 1109 struct r8192_priv *priv = ieee80211_priv(dev); 1110 struct ieee80211_network *net = &priv->ieee80211->current_network; 1111 1112 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE; 1113 tmp = priv->basic_rate; 1114 if (priv->short_preamble) 1115 tmp |= BRSR_AckShortPmb; 1116 write_nic_dword(dev, RRSR, tmp); 1117 1118 if (net->mode & (IEEE_G | IEEE_N_24G)) { 1119 u8 slot_time = 0; 1120 1121 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) && 1122 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime)) 1123 /* short slot time */ 1124 slot_time = SHORT_SLOT_TIME; 1125 else /* long slot time */ 1126 slot_time = NON_SHORT_SLOT_TIME; 1127 priv->slot_time = slot_time; 1128 write_nic_byte(dev, SLOT_TIME, slot_time); 1129 } 1130 } 1131 1132 static void rtl8192_net_update(struct net_device *dev) 1133 { 1134 struct r8192_priv *priv = ieee80211_priv(dev); 1135 struct ieee80211_network *net; 1136 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf; 1137 u16 rate_config = 0; 1138 1139 net = &priv->ieee80211->current_network; 1140 1141 rtl8192_config_rate(dev, &rate_config); 1142 priv->basic_rate = rate_config & 0x15f; 1143 1144 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]); 1145 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]); 1146 1147 rtl8192_update_msr(dev); 1148 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) { 1149 write_nic_word(dev, ATIMWND, 2); 1150 write_nic_word(dev, BCN_DMATIME, 1023); 1151 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval); 1152 write_nic_word(dev, BCN_DRV_EARLY_INT, 1); 1153 write_nic_byte(dev, BCN_ERR_THRESH, 100); 1154 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT); 1155 /* TODO: BcnIFS may required to be changed on ASIC */ 1156 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS; 1157 1158 write_nic_word(dev, BCN_TCFG, BcnTimeCfg); 1159 } 1160 } 1161 1162 /* temporary hw beacon is not used any more. 1163 * open it when necessary 1164 */ 1165 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate) 1166 { 1167 } 1168 1169 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb) 1170 { 1171 struct r8192_priv *priv = ieee80211_priv(dev); 1172 int status; 1173 struct urb *tx_urb; 1174 unsigned int idx_pipe; 1175 struct tx_desc_cmd_819x_usb *pdesc = (struct tx_desc_cmd_819x_usb *)skb->data; 1176 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1177 u8 queue_index = tcb_desc->queue_index; 1178 1179 atomic_inc(&priv->tx_pending[queue_index]); 1180 tx_urb = usb_alloc_urb(0, GFP_ATOMIC); 1181 if (!tx_urb) { 1182 dev_kfree_skb(skb); 1183 return -ENOMEM; 1184 } 1185 1186 memset(pdesc, 0, USB_HWDESC_HEADER_LEN); 1187 /* Tx descriptor ought to be set according to the skb->cb */ 1188 pdesc->FirstSeg = 1; 1189 pdesc->LastSeg = 1; 1190 pdesc->CmdInit = tcb_desc->bCmdOrInit; 1191 pdesc->TxBufferSize = tcb_desc->txbuf_size; 1192 pdesc->OWN = 1; 1193 pdesc->LINIP = tcb_desc->bLastIniPkt; 1194 1195 /*--------------------------------------------------------------------- 1196 * Fill up USB_OUT_CONTEXT. 1197 *--------------------------------------------------------------------- 1198 */ 1199 idx_pipe = 0x04; 1200 usb_fill_bulk_urb(tx_urb, priv->udev, 1201 usb_sndbulkpipe(priv->udev, idx_pipe), 1202 skb->data, skb->len, rtl8192_tx_isr, skb); 1203 1204 status = usb_submit_urb(tx_urb, GFP_ATOMIC); 1205 1206 if (!status) 1207 return 0; 1208 1209 DMESGE("Error TX CMD URB, error %d", status); 1210 dev_kfree_skb(skb); 1211 usb_free_urb(tx_urb); 1212 return -1; 1213 } 1214 1215 /* 1216 * Mapping Software/Hardware descriptor queue id to "Queue Select Field" 1217 * in TxFwInfo data structure 1218 * 2006.10.30 by Emily 1219 * 1220 * \param QUEUEID Software Queue 1221 */ 1222 static u8 MapHwQueueToFirmwareQueue(u8 QueueID) 1223 { 1224 u8 QueueSelect = 0x0; /* default set to */ 1225 1226 switch (QueueID) { 1227 case BE_QUEUE: 1228 QueueSelect = QSLT_BE; 1229 break; 1230 1231 case BK_QUEUE: 1232 QueueSelect = QSLT_BK; 1233 break; 1234 1235 case VO_QUEUE: 1236 QueueSelect = QSLT_VO; 1237 break; 1238 1239 case VI_QUEUE: 1240 QueueSelect = QSLT_VI; 1241 break; 1242 case MGNT_QUEUE: 1243 QueueSelect = QSLT_MGNT; 1244 break; 1245 1246 case BEACON_QUEUE: 1247 QueueSelect = QSLT_BEACON; 1248 break; 1249 1250 /* TODO: mark other queue selection until we verify it is OK */ 1251 /* TODO: Remove Assertions */ 1252 case TXCMD_QUEUE: 1253 QueueSelect = QSLT_CMD; 1254 break; 1255 case HIGH_QUEUE: 1256 QueueSelect = QSLT_HIGH; 1257 break; 1258 1259 default: 1260 RT_TRACE(COMP_ERR, 1261 "TransmitTCB(): Impossible Queue Selection: %d\n", 1262 QueueID); 1263 break; 1264 } 1265 return QueueSelect; 1266 } 1267 1268 static u8 MRateToHwRate8190Pci(u8 rate) 1269 { 1270 u8 ret = DESC90_RATE1M; 1271 1272 switch (rate) { 1273 case MGN_1M: 1274 ret = DESC90_RATE1M; 1275 break; 1276 case MGN_2M: 1277 ret = DESC90_RATE2M; 1278 break; 1279 case MGN_5_5M: 1280 ret = DESC90_RATE5_5M; 1281 break; 1282 case MGN_11M: 1283 ret = DESC90_RATE11M; 1284 break; 1285 case MGN_6M: 1286 ret = DESC90_RATE6M; 1287 break; 1288 case MGN_9M: 1289 ret = DESC90_RATE9M; 1290 break; 1291 case MGN_12M: 1292 ret = DESC90_RATE12M; 1293 break; 1294 case MGN_18M: 1295 ret = DESC90_RATE18M; 1296 break; 1297 case MGN_24M: 1298 ret = DESC90_RATE24M; 1299 break; 1300 case MGN_36M: 1301 ret = DESC90_RATE36M; 1302 break; 1303 case MGN_48M: 1304 ret = DESC90_RATE48M; 1305 break; 1306 case MGN_54M: 1307 ret = DESC90_RATE54M; 1308 break; 1309 1310 /* HT rate since here */ 1311 case MGN_MCS0: 1312 ret = DESC90_RATEMCS0; 1313 break; 1314 case MGN_MCS1: 1315 ret = DESC90_RATEMCS1; 1316 break; 1317 case MGN_MCS2: 1318 ret = DESC90_RATEMCS2; 1319 break; 1320 case MGN_MCS3: 1321 ret = DESC90_RATEMCS3; 1322 break; 1323 case MGN_MCS4: 1324 ret = DESC90_RATEMCS4; 1325 break; 1326 case MGN_MCS5: 1327 ret = DESC90_RATEMCS5; 1328 break; 1329 case MGN_MCS6: 1330 ret = DESC90_RATEMCS6; 1331 break; 1332 case MGN_MCS7: 1333 ret = DESC90_RATEMCS7; 1334 break; 1335 case MGN_MCS8: 1336 ret = DESC90_RATEMCS8; 1337 break; 1338 case MGN_MCS9: 1339 ret = DESC90_RATEMCS9; 1340 break; 1341 case MGN_MCS10: 1342 ret = DESC90_RATEMCS10; 1343 break; 1344 case MGN_MCS11: 1345 ret = DESC90_RATEMCS11; 1346 break; 1347 case MGN_MCS12: 1348 ret = DESC90_RATEMCS12; 1349 break; 1350 case MGN_MCS13: 1351 ret = DESC90_RATEMCS13; 1352 break; 1353 case MGN_MCS14: 1354 ret = DESC90_RATEMCS14; 1355 break; 1356 case MGN_MCS15: 1357 ret = DESC90_RATEMCS15; 1358 break; 1359 case (0x80 | 0x20): 1360 ret = DESC90_RATEMCS32; 1361 break; 1362 1363 default: 1364 break; 1365 } 1366 return ret; 1367 } 1368 1369 static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc) 1370 { 1371 u8 tmp_Short; 1372 1373 tmp_Short = (TxHT == 1) ? 1374 ((tcb_desc->bUseShortGI) ? 1 : 0) : 1375 ((tcb_desc->bUseShortPreamble) ? 1 : 0); 1376 1377 if (TxHT == 1 && TxRate != DESC90_RATEMCS15) 1378 tmp_Short = 0; 1379 1380 return tmp_Short; 1381 } 1382 1383 static void tx_zero_isr(struct urb *tx_urb) 1384 { 1385 } 1386 1387 /* 1388 * The tx procedure is just as following, 1389 * skb->cb will contain all the following information, 1390 * priority, morefrag, rate, &dev. 1391 */ 1392 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) 1393 { 1394 struct r8192_priv *priv = ieee80211_priv(dev); 1395 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1396 struct tx_desc_819x_usb *tx_desc = (struct tx_desc_819x_usb *)skb->data; 1397 struct tx_fwinfo_819x_usb *tx_fwinfo = 1398 (struct tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN); 1399 struct usb_device *udev = priv->udev; 1400 int pend; 1401 int status, rt = -1; 1402 struct urb *tx_urb = NULL, *tx_urb_zero = NULL; 1403 unsigned int idx_pipe; 1404 1405 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]); 1406 /* we are locked here so the two atomic_read and inc are executed 1407 * without interleaves 1408 * !!! For debug purpose 1409 */ 1410 if (pend > MAX_TX_URB) { 1411 netdev_dbg(dev, "To discard skb packet!\n"); 1412 dev_kfree_skb_any(skb); 1413 return -1; 1414 } 1415 1416 tx_urb = usb_alloc_urb(0, GFP_ATOMIC); 1417 if (!tx_urb) { 1418 dev_kfree_skb_any(skb); 1419 return -ENOMEM; 1420 } 1421 1422 /* Fill Tx firmware info */ 1423 memset(tx_fwinfo, 0, sizeof(struct tx_fwinfo_819x_usb)); 1424 /* DWORD 0 */ 1425 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0; 1426 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate); 1427 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur; 1428 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate, 1429 tcb_desc); 1430 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */ 1431 tx_fwinfo->AllowAggregation = 1; 1432 /* DWORD 1 */ 1433 tx_fwinfo->RxMF = tcb_desc->ampdu_factor; 1434 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07; 1435 } else { 1436 tx_fwinfo->AllowAggregation = 0; 1437 /* DWORD 1 */ 1438 tx_fwinfo->RxMF = 0; 1439 tx_fwinfo->RxAMD = 0; 1440 } 1441 1442 /* Protection mode related */ 1443 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0; 1444 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0; 1445 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0; 1446 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0; 1447 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate); 1448 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0; 1449 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0; 1450 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) : 1451 (tcb_desc->bRTSUseShortGI ? 1 : 0); 1452 1453 /* Set Bandwidth and sub-channel settings. */ 1454 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) { 1455 if (tcb_desc->bPacketBW) { 1456 tx_fwinfo->TxBandwidth = 1; 1457 /* use duplicated mode */ 1458 tx_fwinfo->TxSubCarrier = 0; 1459 } else { 1460 tx_fwinfo->TxBandwidth = 0; 1461 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC; 1462 } 1463 } else { 1464 tx_fwinfo->TxBandwidth = 0; 1465 tx_fwinfo->TxSubCarrier = 0; 1466 } 1467 1468 /* Fill Tx descriptor */ 1469 memset(tx_desc, 0, sizeof(struct tx_desc_819x_usb)); 1470 /* DWORD 0 */ 1471 tx_desc->LINIP = 0; 1472 tx_desc->CmdInit = 1; 1473 tx_desc->Offset = sizeof(struct tx_fwinfo_819x_usb) + 8; 1474 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff; 1475 1476 /*DWORD 1*/ 1477 tx_desc->SecCAMID = 0; 1478 tx_desc->RATid = tcb_desc->RATRIndex; 1479 tx_desc->NoEnc = 1; 1480 tx_desc->SecType = 0x0; 1481 if (tcb_desc->bHwSec) { 1482 switch (priv->ieee80211->pairwise_key_type) { 1483 case KEY_TYPE_WEP40: 1484 case KEY_TYPE_WEP104: 1485 tx_desc->SecType = 0x1; 1486 tx_desc->NoEnc = 0; 1487 break; 1488 case KEY_TYPE_TKIP: 1489 tx_desc->SecType = 0x2; 1490 tx_desc->NoEnc = 0; 1491 break; 1492 case KEY_TYPE_CCMP: 1493 tx_desc->SecType = 0x3; 1494 tx_desc->NoEnc = 0; 1495 break; 1496 case KEY_TYPE_NA: 1497 tx_desc->SecType = 0x0; 1498 tx_desc->NoEnc = 1; 1499 break; 1500 } 1501 } 1502 1503 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index); 1504 tx_desc->TxFWInfoSize = sizeof(struct tx_fwinfo_819x_usb); 1505 1506 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack; 1507 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate; 1508 1509 /* Fill fields that are required to be initialized in 1510 * all of the descriptors 1511 */ 1512 /* DWORD 0 */ 1513 tx_desc->FirstSeg = 1; 1514 tx_desc->LastSeg = 1; 1515 tx_desc->OWN = 1; 1516 1517 /* DWORD 2 */ 1518 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN); 1519 idx_pipe = 0x5; 1520 1521 /* To submit bulk urb */ 1522 usb_fill_bulk_urb(tx_urb, udev, 1523 usb_sndbulkpipe(udev, idx_pipe), skb->data, 1524 skb->len, rtl8192_tx_isr, skb); 1525 1526 status = usb_submit_urb(tx_urb, GFP_ATOMIC); 1527 if (!status) { 1528 /* We need to send 0 byte packet whenever 1529 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has 1530 * been transmitted. Otherwise, it will be halt to wait for 1531 * another packet. 1532 */ 1533 bool bSend0Byte = false; 1534 u8 zero = 0; 1535 1536 if (udev->speed == USB_SPEED_HIGH) { 1537 if (skb->len > 0 && skb->len % 512 == 0) 1538 bSend0Byte = true; 1539 } else { 1540 if (skb->len > 0 && skb->len % 64 == 0) 1541 bSend0Byte = true; 1542 } 1543 if (bSend0Byte) { 1544 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC); 1545 if (!tx_urb_zero) { 1546 rt = -ENOMEM; 1547 goto error; 1548 } 1549 usb_fill_bulk_urb(tx_urb_zero, udev, 1550 usb_sndbulkpipe(udev, idx_pipe), 1551 &zero, 0, tx_zero_isr, dev); 1552 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC); 1553 if (status) { 1554 RT_TRACE(COMP_ERR, 1555 "Error TX URB for zero byte %d, error %d", 1556 atomic_read(&priv->tx_pending[tcb_desc->queue_index]), 1557 status); 1558 goto error; 1559 } 1560 } 1561 netif_trans_update(dev); 1562 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]); 1563 return 0; 1564 } 1565 1566 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d", 1567 atomic_read(&priv->tx_pending[tcb_desc->queue_index]), 1568 status); 1569 1570 error: 1571 dev_kfree_skb_any(skb); 1572 usb_free_urb(tx_urb); 1573 usb_free_urb(tx_urb_zero); 1574 return rt; 1575 } 1576 1577 static short rtl8192_usb_initendpoints(struct net_device *dev) 1578 { 1579 struct r8192_priv *priv = ieee80211_priv(dev); 1580 1581 priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *), 1582 GFP_KERNEL); 1583 if (!priv->rx_urb) 1584 return -ENOMEM; 1585 1586 #ifndef JACKSON_NEW_RX 1587 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1588 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); 1589 if (!priv->rx_urb[i]) 1590 return -ENOMEM; 1591 1592 priv->rx_urb[i]->transfer_buffer = 1593 kmalloc(RX_URB_SIZE, GFP_KERNEL); 1594 if (!priv->rx_urb[i]->transfer_buffer) 1595 return -ENOMEM; 1596 1597 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE; 1598 } 1599 #endif 1600 1601 #ifdef THOMAS_BEACON 1602 { 1603 long align = 0; 1604 void *oldaddr, *newaddr; 1605 1606 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL); 1607 if (!priv->rx_urb[16]) 1608 return -ENOMEM; 1609 priv->oldaddr = kmalloc(16, GFP_KERNEL); 1610 if (!priv->oldaddr) 1611 return -ENOMEM; 1612 oldaddr = priv->oldaddr; 1613 align = ((long)oldaddr) & 3; 1614 if (align) { 1615 newaddr = oldaddr + 4 - align; 1616 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align; 1617 } else { 1618 newaddr = oldaddr; 1619 priv->rx_urb[16]->transfer_buffer_length = 16; 1620 } 1621 priv->rx_urb[16]->transfer_buffer = newaddr; 1622 } 1623 #endif 1624 1625 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB); 1626 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *), 1627 GFP_KERNEL); 1628 if (!priv->pp_rxskb) { 1629 kfree(priv->rx_urb); 1630 1631 priv->pp_rxskb = NULL; 1632 priv->rx_urb = NULL; 1633 1634 DMESGE("Endpoint Alloc Failure"); 1635 return -ENOMEM; 1636 } 1637 1638 netdev_dbg(dev, "End of initendpoints\n"); 1639 return 0; 1640 } 1641 1642 #ifdef THOMAS_BEACON 1643 static void rtl8192_usb_deleteendpoints(struct net_device *dev) 1644 { 1645 int i; 1646 struct r8192_priv *priv = ieee80211_priv(dev); 1647 1648 if (priv->rx_urb) { 1649 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1650 usb_kill_urb(priv->rx_urb[i]); 1651 usb_free_urb(priv->rx_urb[i]); 1652 } 1653 kfree(priv->rx_urb); 1654 priv->rx_urb = NULL; 1655 } 1656 kfree(priv->oldaddr); 1657 priv->oldaddr = NULL; 1658 1659 kfree(priv->pp_rxskb); 1660 priv->pp_rxskb = NULL; 1661 } 1662 #else 1663 void rtl8192_usb_deleteendpoints(struct net_device *dev) 1664 { 1665 int i; 1666 struct r8192_priv *priv = ieee80211_priv(dev); 1667 1668 #ifndef JACKSON_NEW_RX 1669 1670 if (priv->rx_urb) { 1671 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1672 usb_kill_urb(priv->rx_urb[i]); 1673 kfree(priv->rx_urb[i]->transfer_buffer); 1674 usb_free_urb(priv->rx_urb[i]); 1675 } 1676 kfree(priv->rx_urb); 1677 priv->rx_urb = NULL; 1678 } 1679 #else 1680 kfree(priv->rx_urb); 1681 priv->rx_urb = NULL; 1682 kfree(priv->oldaddr); 1683 priv->oldaddr = NULL; 1684 1685 kfree(priv->pp_rxskb); 1686 priv->pp_rxskb = 0; 1687 1688 #endif 1689 } 1690 #endif 1691 1692 static void rtl8192_update_ratr_table(struct net_device *dev); 1693 static void rtl8192_link_change(struct net_device *dev) 1694 { 1695 struct r8192_priv *priv = ieee80211_priv(dev); 1696 struct ieee80211_device *ieee = priv->ieee80211; 1697 1698 if (ieee->state == IEEE80211_LINKED) { 1699 rtl8192_net_update(dev); 1700 rtl8192_update_ratr_table(dev); 1701 /* Add this as in pure N mode, wep encryption will use software 1702 * way, but there is no chance to set this as wep will not set 1703 * group key in wext. 1704 */ 1705 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 || 1706 ieee->pairwise_key_type == KEY_TYPE_WEP104) 1707 EnableHWSecurityConfig8192(dev); 1708 } 1709 /*update timing params*/ 1710 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) { 1711 u32 reg = 0; 1712 1713 read_nic_dword(dev, RCR, ®); 1714 if (priv->ieee80211->state == IEEE80211_LINKED) 1715 priv->ReceiveConfig = reg |= RCR_CBSSID; 1716 else 1717 priv->ReceiveConfig = reg &= ~RCR_CBSSID; 1718 write_nic_dword(dev, RCR, reg); 1719 } 1720 } 1721 1722 static const struct ieee80211_qos_parameters def_qos_parameters = { 1723 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)}, 1724 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)}, 1725 {2, 2, 2, 2},/* aifs */ 1726 {0, 0, 0, 0},/* flags */ 1727 {0, 0, 0, 0} /* tx_op_limit */ 1728 }; 1729 1730 static void rtl8192_update_beacon(struct work_struct *work) 1731 { 1732 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1733 update_beacon_wq.work); 1734 struct net_device *dev = priv->ieee80211->dev; 1735 struct ieee80211_device *ieee = priv->ieee80211; 1736 struct ieee80211_network *net = &ieee->current_network; 1737 1738 if (ieee->pHTInfo->bCurrentHTSupport) 1739 HTUpdateSelfAndPeerSetting(ieee, net); 1740 ieee->pHTInfo->bCurrentRT2RTLongSlotTime = 1741 net->bssht.bdRT2RTLongSlotTime; 1742 rtl8192_update_cap(dev, net->capability); 1743 } 1744 1745 /* 1746 * background support to run QoS activate functionality 1747 */ 1748 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK, 1749 EDCAPARA_VI, EDCAPARA_VO}; 1750 static void rtl8192_qos_activate(struct work_struct *work) 1751 { 1752 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1753 qos_activate); 1754 struct net_device *dev = priv->ieee80211->dev; 1755 struct ieee80211_qos_parameters *qos_parameters = 1756 &priv->ieee80211->current_network.qos_data.parameters; 1757 u8 mode = priv->ieee80211->current_network.mode; 1758 u32 u1bAIFS; 1759 u32 u4bAcParam; 1760 u32 op_limit; 1761 u32 cw_max; 1762 u32 cw_min; 1763 int i; 1764 1765 mutex_lock(&priv->mutex); 1766 if (priv->ieee80211->state != IEEE80211_LINKED) 1767 goto success; 1768 RT_TRACE(COMP_QOS, 1769 "qos active process with associate response received\n"); 1770 /* It better set slot time at first 1771 * 1772 * For we just support b/g mode at present, let the slot time at 1773 * 9/20 selection 1774 * 1775 * update the ac parameter to related registers 1776 */ 1777 for (i = 0; i < QOS_QUEUE_NUM; i++) { 1778 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */ 1779 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime; 1780 u1bAIFS <<= AC_PARAM_AIFS_OFFSET; 1781 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]); 1782 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET; 1783 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]); 1784 cw_max <<= AC_PARAM_ECW_MAX_OFFSET; 1785 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]); 1786 cw_min <<= AC_PARAM_ECW_MIN_OFFSET; 1787 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS; 1788 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam); 1789 } 1790 1791 success: 1792 mutex_unlock(&priv->mutex); 1793 } 1794 1795 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv, 1796 int active_network, 1797 struct ieee80211_network *network) 1798 { 1799 int ret = 0; 1800 u32 size = sizeof(struct ieee80211_qos_parameters); 1801 1802 if (priv->ieee80211->state != IEEE80211_LINKED) 1803 return ret; 1804 1805 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1806 return ret; 1807 1808 if (network->flags & NETWORK_HAS_QOS_MASK) { 1809 if (active_network && 1810 (network->flags & NETWORK_HAS_QOS_PARAMETERS)) 1811 network->qos_data.active = network->qos_data.supported; 1812 1813 if ((network->qos_data.active == 1) && (active_network == 1) && 1814 (network->flags & NETWORK_HAS_QOS_PARAMETERS) && 1815 (network->qos_data.old_param_count != 1816 network->qos_data.param_count)) { 1817 network->qos_data.old_param_count = 1818 network->qos_data.param_count; 1819 schedule_work(&priv->qos_activate); 1820 RT_TRACE(COMP_QOS, 1821 "QoS parameters change call qos_activate\n"); 1822 } 1823 } else { 1824 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1825 &def_qos_parameters, size); 1826 1827 if ((network->qos_data.active == 1) && (active_network == 1)) { 1828 schedule_work(&priv->qos_activate); 1829 RT_TRACE(COMP_QOS, 1830 "QoS was disabled call qos_activate\n"); 1831 } 1832 network->qos_data.active = 0; 1833 network->qos_data.supported = 0; 1834 } 1835 1836 return 0; 1837 } 1838 1839 /* handle and manage frame from beacon and probe response */ 1840 static int rtl8192_handle_beacon(struct net_device *dev, 1841 struct ieee80211_beacon *beacon, 1842 struct ieee80211_network *network) 1843 { 1844 struct r8192_priv *priv = ieee80211_priv(dev); 1845 1846 rtl8192_qos_handle_probe_response(priv, 1, network); 1847 schedule_delayed_work(&priv->update_beacon_wq, 0); 1848 return 0; 1849 } 1850 1851 /* 1852 * handling the beaconing responses. if we get different QoS setting 1853 * off the network from the associated setting, adjust the QoS 1854 * setting 1855 */ 1856 static int rtl8192_qos_association_resp(struct r8192_priv *priv, 1857 struct ieee80211_network *network) 1858 { 1859 unsigned long flags; 1860 u32 size = sizeof(struct ieee80211_qos_parameters); 1861 int set_qos_param = 0; 1862 1863 if (!priv || !network) 1864 return 0; 1865 1866 if (priv->ieee80211->state != IEEE80211_LINKED) 1867 return 0; 1868 1869 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1870 return 0; 1871 1872 spin_lock_irqsave(&priv->ieee80211->lock, flags); 1873 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { 1874 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1875 &network->qos_data.parameters, 1876 sizeof(struct ieee80211_qos_parameters)); 1877 priv->ieee80211->current_network.qos_data.active = 1; 1878 set_qos_param = 1; 1879 /* update qos parameter for current network */ 1880 priv->ieee80211->current_network.qos_data.old_param_count = 1881 priv->ieee80211->current_network.qos_data.param_count; 1882 priv->ieee80211->current_network.qos_data.param_count = 1883 network->qos_data.param_count; 1884 } else { 1885 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1886 &def_qos_parameters, size); 1887 priv->ieee80211->current_network.qos_data.active = 0; 1888 priv->ieee80211->current_network.qos_data.supported = 0; 1889 set_qos_param = 1; 1890 } 1891 1892 spin_unlock_irqrestore(&priv->ieee80211->lock, flags); 1893 1894 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__, 1895 network->flags, 1896 priv->ieee80211->current_network.qos_data.active); 1897 if (set_qos_param == 1) 1898 schedule_work(&priv->qos_activate); 1899 1900 return 0; 1901 } 1902 1903 static int rtl8192_handle_assoc_response(struct net_device *dev, 1904 struct ieee80211_assoc_response_frame *resp, 1905 struct ieee80211_network *network) 1906 { 1907 struct r8192_priv *priv = ieee80211_priv(dev); 1908 1909 rtl8192_qos_association_resp(priv, network); 1910 return 0; 1911 } 1912 1913 static void rtl8192_update_ratr_table(struct net_device *dev) 1914 { 1915 struct r8192_priv *priv = ieee80211_priv(dev); 1916 struct ieee80211_device *ieee = priv->ieee80211; 1917 u8 *pMcsRate = ieee->dot11HTOperationalRateSet; 1918 u32 ratr_value = 0; 1919 u8 rate_index = 0; 1920 1921 rtl8192_config_rate(dev, (u16 *)(&ratr_value)); 1922 ratr_value |= (*(u16 *)(pMcsRate)) << 12; 1923 switch (ieee->mode) { 1924 case IEEE_A: 1925 ratr_value &= 0x00000FF0; 1926 break; 1927 case IEEE_B: 1928 ratr_value &= 0x0000000F; 1929 break; 1930 case IEEE_G: 1931 ratr_value &= 0x00000FF7; 1932 break; 1933 case IEEE_N_24G: 1934 case IEEE_N_5G: 1935 if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) { 1936 ratr_value &= 0x0007F007; 1937 } else { 1938 if (priv->rf_type == RF_1T2R) 1939 ratr_value &= 0x000FF007; 1940 else 1941 ratr_value &= 0x0F81F007; 1942 } 1943 break; 1944 default: 1945 break; 1946 } 1947 ratr_value &= 0x0FFFFFFF; 1948 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz) 1949 ratr_value |= 0x80000000; 1950 else if (!ieee->pHTInfo->bCurTxBW40MHz && 1951 ieee->pHTInfo->bCurShortGI20MHz) 1952 ratr_value |= 0x80000000; 1953 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value); 1954 write_nic_byte(dev, UFWP, 1); 1955 } 1956 1957 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04}; 1958 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04}; 1959 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev) 1960 { 1961 struct r8192_priv *priv = ieee80211_priv(dev); 1962 struct ieee80211_device *ieee = priv->ieee80211; 1963 struct ieee80211_network *network = &ieee->current_network; 1964 int wpa_ie_len = ieee->wpa_ie_len; 1965 struct ieee80211_crypt_data *crypt; 1966 int encrypt; 1967 1968 crypt = ieee->crypt[ieee->tx_keyidx]; 1969 /* we use connecting AP's capability instead of only security config 1970 * on our driver to distinguish whether it should use N mode or G mode 1971 */ 1972 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) || 1973 (ieee->host_encrypt && crypt && crypt->ops && 1974 (strcmp(crypt->ops->name, "WEP") == 0)); 1975 1976 /* simply judge */ 1977 if (encrypt && (wpa_ie_len == 0)) { 1978 /* wep encryption, no N mode setting */ 1979 return false; 1980 } else if ((wpa_ie_len != 0)) { 1981 /* parse pairwise key type */ 1982 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)))) 1983 return true; 1984 else 1985 return false; 1986 } else { 1987 return true; 1988 } 1989 1990 return true; 1991 } 1992 1993 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev) 1994 { 1995 struct r8192_priv *priv = ieee80211_priv(dev); 1996 1997 return priv->ieee80211->bHalfWirelessN24GMode; 1998 } 1999 2000 static void rtl8192_refresh_supportrate(struct r8192_priv *priv) 2001 { 2002 struct ieee80211_device *ieee = priv->ieee80211; 2003 /* We do not consider set support rate for ABG mode, only 2004 * HT MCS rate is set here. 2005 */ 2006 if (ieee->mode == WIRELESS_MODE_N_24G || 2007 ieee->mode == WIRELESS_MODE_N_5G) 2008 memcpy(ieee->Regdot11HTOperationalRateSet, 2009 ieee->RegHTSuppRateSet, 16); 2010 else 2011 memset(ieee->Regdot11HTOperationalRateSet, 0, 16); 2012 } 2013 2014 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev) 2015 { 2016 struct r8192_priv *priv = ieee80211_priv(dev); 2017 u8 ret = 0; 2018 2019 switch (priv->rf_chip) { 2020 case RF_8225: 2021 case RF_8256: 2022 case RF_PSEUDO_11N: 2023 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B; 2024 break; 2025 case RF_8258: 2026 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G; 2027 break; 2028 default: 2029 ret = WIRELESS_MODE_B; 2030 break; 2031 } 2032 return ret; 2033 } 2034 2035 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) 2036 { 2037 struct r8192_priv *priv = ieee80211_priv(dev); 2038 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev); 2039 2040 if (wireless_mode == WIRELESS_MODE_AUTO || 2041 (wireless_mode & bSupportMode) == 0) { 2042 if (bSupportMode & WIRELESS_MODE_N_24G) { 2043 wireless_mode = WIRELESS_MODE_N_24G; 2044 } else if (bSupportMode & WIRELESS_MODE_N_5G) { 2045 wireless_mode = WIRELESS_MODE_N_5G; 2046 } else if ((bSupportMode & WIRELESS_MODE_A)) { 2047 wireless_mode = WIRELESS_MODE_A; 2048 } else if ((bSupportMode & WIRELESS_MODE_G)) { 2049 wireless_mode = WIRELESS_MODE_G; 2050 } else if ((bSupportMode & WIRELESS_MODE_B)) { 2051 wireless_mode = WIRELESS_MODE_B; 2052 } else { 2053 RT_TRACE(COMP_ERR, 2054 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n", 2055 __func__, bSupportMode); 2056 wireless_mode = WIRELESS_MODE_B; 2057 } 2058 } 2059 priv->ieee80211->mode = wireless_mode; 2060 2061 if (wireless_mode == WIRELESS_MODE_N_24G || 2062 wireless_mode == WIRELESS_MODE_N_5G) 2063 priv->ieee80211->pHTInfo->bEnableHT = 1; 2064 else 2065 priv->ieee80211->pHTInfo->bEnableHT = 0; 2066 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode); 2067 rtl8192_refresh_supportrate(priv); 2068 } 2069 2070 /* init priv variables here. only non_zero value should be initialized here. */ 2071 static int rtl8192_init_priv_variable(struct net_device *dev) 2072 { 2073 struct r8192_priv *priv = ieee80211_priv(dev); 2074 u8 i; 2075 2076 priv->card_8192 = NIC_8192U; 2077 priv->chan = 1; /* set to channel 1 */ 2078 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */ 2079 priv->ieee80211->iw_mode = IW_MODE_INFRA; 2080 priv->ieee80211->ieee_up = 0; 2081 priv->retry_rts = DEFAULT_RETRY_RTS; 2082 priv->retry_data = DEFAULT_RETRY_DATA; 2083 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD; 2084 priv->ieee80211->rate = 110; /* 11 mbps */ 2085 priv->ieee80211->short_slot = 1; 2086 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 2087 priv->CckPwEnl = 6; 2088 /* for silent reset */ 2089 priv->IrpPendingCount = 1; 2090 priv->ResetProgress = RESET_TYPE_NORESET; 2091 priv->bForcedSilentReset = false; 2092 priv->bDisableNormalResetCheck = false; 2093 priv->force_reset = false; 2094 2095 /* we don't use FW read/write RF until stable firmware is available. */ 2096 priv->ieee80211->FwRWRF = 0; 2097 priv->ieee80211->current_network.beacon_interval = 2098 DEFAULT_BEACONINTERVAL; 2099 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN | 2100 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ | 2101 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE | 2102 IEEE_SOFTMAC_BEACONS; 2103 2104 priv->ieee80211->active_scan = 1; 2105 priv->ieee80211->modulation = 2106 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION; 2107 priv->ieee80211->host_encrypt = 1; 2108 priv->ieee80211->host_decrypt = 1; 2109 priv->ieee80211->start_send_beacons = NULL; 2110 priv->ieee80211->stop_send_beacons = NULL; 2111 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit; 2112 priv->ieee80211->set_chan = rtl8192_set_chan; 2113 priv->ieee80211->link_change = rtl8192_link_change; 2114 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit; 2115 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop; 2116 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume; 2117 priv->ieee80211->init_wmmparam_flag = 0; 2118 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD; 2119 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc; 2120 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES; 2121 priv->ieee80211->qos_support = 1; 2122 2123 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode; 2124 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response; 2125 priv->ieee80211->handle_beacon = rtl8192_handle_beacon; 2126 2127 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192; 2128 priv->ieee80211->GetHalfNmodeSupportByAPsHandler = 2129 GetHalfNmodeSupportByAPs819xUsb; 2130 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode; 2131 2132 priv->ieee80211->InitialGainHandler = InitialGain819xUsb; 2133 priv->card_type = USB; 2134 priv->ShortRetryLimit = 0x30; 2135 priv->LongRetryLimit = 0x30; 2136 priv->EarlyRxThreshold = 7; 2137 priv->enable_gpio0 = 0; 2138 priv->TransmitConfig = 2139 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */ 2140 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) | 2141 /* Short retry limit */ 2142 (priv->ShortRetryLimit << TCR_SRL_OFFSET) | 2143 /* Long retry limit */ 2144 (priv->LongRetryLimit << TCR_LRL_OFFSET) | 2145 /* FALSE: HW provides PLCP length and LENGEXT 2146 * TRUE: SW provides them 2147 */ 2148 (false ? TCR_SAT : 0); 2149 priv->ReceiveConfig = 2150 /* accept management/data */ 2151 RCR_AMF | RCR_ADF | 2152 /* accept control frame for SW AP needs PS-poll */ 2153 RCR_ACF | 2154 /* accept BC/MC/UC */ 2155 RCR_AB | RCR_AM | RCR_APM | 2156 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */ 2157 ((u32)7 << RCR_MXDMA_OFFSET) | 2158 /* Rx FIFO Threshold, 7: No Rx threshold. */ 2159 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) | 2160 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0); 2161 2162 priv->AcmControl = 0; 2163 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL); 2164 if (!priv->pFirmware) 2165 return -ENOMEM; 2166 2167 /* rx related queue */ 2168 skb_queue_head_init(&priv->rx_queue); 2169 skb_queue_head_init(&priv->skb_queue); 2170 2171 /* Tx related queue */ 2172 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2173 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]); 2174 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2175 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]); 2176 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2177 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]); 2178 priv->rf_set_chan = rtl8192_phy_SwChnl; 2179 2180 return 0; 2181 } 2182 2183 /* init lock here */ 2184 static void rtl8192_init_priv_lock(struct r8192_priv *priv) 2185 { 2186 spin_lock_init(&priv->tx_lock); 2187 spin_lock_init(&priv->irq_lock); 2188 mutex_init(&priv->wx_mutex); 2189 mutex_init(&priv->mutex); 2190 } 2191 2192 static void rtl819x_watchdog_wqcallback(struct work_struct *work); 2193 2194 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t); 2195 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */ 2196 #define DRV_NAME "wlan0" 2197 static void rtl8192_init_priv_task(struct net_device *dev) 2198 { 2199 struct r8192_priv *priv = ieee80211_priv(dev); 2200 2201 INIT_WORK(&priv->reset_wq, rtl8192_restart); 2202 2203 INIT_DELAYED_WORK(&priv->watch_dog_wq, 2204 rtl819x_watchdog_wqcallback); 2205 INIT_DELAYED_WORK(&priv->txpower_tracking_wq, 2206 dm_txpower_trackingcallback); 2207 INIT_DELAYED_WORK(&priv->rfpath_check_wq, 2208 dm_rf_pathcheck_workitemcallback); 2209 INIT_DELAYED_WORK(&priv->update_beacon_wq, 2210 rtl8192_update_beacon); 2211 INIT_DELAYED_WORK(&priv->initialgain_operate_wq, 2212 InitialGainOperateWorkItemCallBack); 2213 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate); 2214 2215 tasklet_setup(&priv->irq_rx_tasklet, rtl8192_irq_rx_tasklet); 2216 } 2217 2218 static void rtl8192_get_eeprom_size(struct net_device *dev) 2219 { 2220 u16 curCR = 0; 2221 struct r8192_priv *priv = ieee80211_priv(dev); 2222 2223 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); 2224 read_nic_word_E(dev, EPROM_CMD, &curCR); 2225 RT_TRACE(COMP_EPROM, 2226 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR); 2227 /* whether need I consider BIT(5?) */ 2228 priv->epromtype = 2229 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46; 2230 RT_TRACE(COMP_EPROM, 2231 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype); 2232 } 2233 2234 /* used to swap endian. as ntohl & htonl are not necessary 2235 * to swap endian, so use this instead. 2236 */ 2237 static inline u16 endian_swap(u16 *data) 2238 { 2239 u16 tmp = *data; 2240 *data = (tmp >> 8) | (tmp << 8); 2241 return *data; 2242 } 2243 2244 static int rtl8192_read_eeprom_info(struct net_device *dev) 2245 { 2246 u16 wEPROM_ID = 0; 2247 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02}; 2248 u8 bLoad_From_EEPOM = false; 2249 struct r8192_priv *priv = ieee80211_priv(dev); 2250 u16 tmpValue = 0; 2251 int i; 2252 int ret; 2253 2254 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); 2255 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */ 2256 if (ret < 0) 2257 return ret; 2258 wEPROM_ID = (u16)ret; 2259 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID); 2260 2261 if (wEPROM_ID != RTL8190_EEPROM_ID) 2262 RT_TRACE(COMP_ERR, 2263 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n", 2264 wEPROM_ID, RTL8190_EEPROM_ID); 2265 else 2266 bLoad_From_EEPOM = true; 2267 2268 if (bLoad_From_EEPOM) { 2269 tmpValue = eprom_read(dev, EEPROM_VID >> 1); 2270 ret = eprom_read(dev, EEPROM_VID >> 1); 2271 if (ret < 0) 2272 return ret; 2273 tmpValue = (u16)ret; 2274 priv->eeprom_vid = endian_swap(&tmpValue); 2275 ret = eprom_read(dev, EEPROM_PID >> 1); 2276 if (ret < 0) 2277 return ret; 2278 priv->eeprom_pid = (u16)ret; 2279 ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1); 2280 if (ret < 0) 2281 return ret; 2282 tmpValue = (u16)ret; 2283 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8; 2284 priv->btxpowerdata_readfromEEPORM = true; 2285 ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8; 2286 if (ret < 0) 2287 return ret; 2288 priv->eeprom_CustomerID = (u16)ret; 2289 } else { 2290 priv->eeprom_vid = 0; 2291 priv->eeprom_pid = 0; 2292 priv->card_8192_version = VERSION_819XU_B; 2293 priv->eeprom_ChannelPlan = 0; 2294 priv->eeprom_CustomerID = 0; 2295 } 2296 RT_TRACE(COMP_EPROM, 2297 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n", 2298 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID, 2299 priv->eeprom_ChannelPlan); 2300 /* set channelplan from eeprom */ 2301 priv->ChannelPlan = priv->eeprom_ChannelPlan; 2302 if (bLoad_From_EEPOM) { 2303 u8 addr[ETH_ALEN]; 2304 2305 for (i = 0; i < 6; i += 2) { 2306 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1)); 2307 if (ret < 0) 2308 return ret; 2309 *(u16 *)(&addr[i]) = (u16)ret; 2310 } 2311 eth_hw_addr_set(dev, addr); 2312 } else { 2313 eth_hw_addr_set(dev, bMac_Tmp_Addr); 2314 /* should I set IDR0 here? */ 2315 } 2316 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr); 2317 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */ 2318 priv->rf_chip = RF_8256; 2319 2320 if (priv->card_8192_version == VERSION_819XU_A) { 2321 /* read Tx power gain offset of legacy OFDM to HT rate */ 2322 if (bLoad_From_EEPOM) { 2323 ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1)); 2324 if (ret < 0) 2325 return ret; 2326 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8; 2327 } else 2328 priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER; 2329 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff); 2330 /* read ThermalMeter from EEPROM */ 2331 if (bLoad_From_EEPOM) { 2332 ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1)); 2333 if (ret < 0) 2334 return ret; 2335 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff); 2336 } else 2337 priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER; 2338 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter); 2339 /* for tx power track */ 2340 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100; 2341 /* read antenna tx power offset of B/C/D to A from EEPROM */ 2342 if (bLoad_From_EEPOM) { 2343 ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1)); 2344 if (ret < 0) 2345 return ret; 2346 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8; 2347 } else 2348 priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF; 2349 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff); 2350 /* Read CrystalCap from EEPROM */ 2351 if (bLoad_From_EEPOM) { 2352 ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1)); 2353 if (ret < 0) 2354 return ret; 2355 priv->EEPROMCrystalCap = (u16)ret & 0x0f; 2356 } else 2357 priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP; 2358 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap); 2359 /* get per-channel Tx power level */ 2360 if (bLoad_From_EEPOM) { 2361 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1)); 2362 if (ret < 0) 2363 return ret; 2364 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8; 2365 } else 2366 priv->EEPROM_Def_Ver = 1; 2367 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver); 2368 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */ 2369 if (bLoad_From_EEPOM) { 2370 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1)); 2371 if (ret < 0) 2372 return ret; 2373 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff00) >> 8; 2374 } else 2375 priv->EEPROMTxPowerLevelCCK = 0x10; 2376 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK); 2377 for (i = 0; i < 3; i++) { 2378 if (bLoad_From_EEPOM) { 2379 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1); 2380 if (ret < 0) 2381 return ret; 2382 if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0) 2383 tmpValue = (u16)ret & 0x00ff; 2384 else 2385 tmpValue = ((u16)ret & 0xff00) >> 8; 2386 } else { 2387 tmpValue = 0x10; 2388 } 2389 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue; 2390 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK); 2391 } 2392 } else if (priv->EEPROM_Def_Ver == 1) { 2393 if (bLoad_From_EEPOM) { 2394 ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1); 2395 if (ret < 0) 2396 return ret; 2397 tmpValue = ((u16)ret & 0xff00) >> 8; 2398 } else { 2399 tmpValue = 0x10; 2400 } 2401 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue; 2402 2403 if (bLoad_From_EEPOM) { 2404 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1); 2405 if (ret < 0) 2406 return ret; 2407 tmpValue = (u16)ret; 2408 } else 2409 tmpValue = 0x1010; 2410 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue; 2411 if (bLoad_From_EEPOM) 2412 tmpValue = eprom_read(dev, 2413 EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1); 2414 else 2415 tmpValue = 0x1010; 2416 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue; 2417 if (bLoad_From_EEPOM) 2418 tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1); 2419 else 2420 tmpValue = 0x10; 2421 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue; 2422 } /* endif EEPROM_Def_Ver == 1 */ 2423 2424 /* update HAL variables */ 2425 for (i = 0; i < 14; i++) { 2426 if (i <= 3) 2427 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0]; 2428 else if (i >= 4 && i <= 9) 2429 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1]; 2430 else 2431 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2]; 2432 } 2433 2434 for (i = 0; i < 14; i++) { 2435 if (priv->EEPROM_Def_Ver == 0) { 2436 if (i <= 3) 2437 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); 2438 else if (i >= 4 && i <= 9) 2439 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK; 2440 else 2441 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); 2442 } else if (priv->EEPROM_Def_Ver == 1) { 2443 if (i <= 3) 2444 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0]; 2445 else if (i >= 4 && i <= 9) 2446 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1]; 2447 else 2448 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2]; 2449 } 2450 } 2451 priv->TxPowerDiff = priv->EEPROMPwDiff; 2452 /* Antenna B gain offset to antenna A, bit0~3 */ 2453 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf); 2454 /* Antenna C gain offset to antenna A, bit4~7 */ 2455 priv->AntennaTxPwDiff[1] = 2456 (priv->EEPROMTxPowerDiff & 0xf0) >> 4; 2457 /* CrystalCap, bit12~15 */ 2458 priv->CrystalCap = priv->EEPROMCrystalCap; 2459 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2 2460 * 92U does not enable TX power tracking. 2461 */ 2462 priv->ThermalMeter[0] = priv->EEPROMThermalMeter; 2463 } /* end if VersionID == VERSION_819XU_A */ 2464 2465 /* for dlink led */ 2466 switch (priv->eeprom_CustomerID) { 2467 case EEPROM_CID_RUNTOP: 2468 priv->CustomerID = RT_CID_819x_RUNTOP; 2469 break; 2470 2471 case EEPROM_CID_DLINK: 2472 priv->CustomerID = RT_CID_DLINK; 2473 break; 2474 2475 default: 2476 priv->CustomerID = RT_CID_DEFAULT; 2477 break; 2478 } 2479 2480 switch (priv->CustomerID) { 2481 case RT_CID_819x_RUNTOP: 2482 priv->LedStrategy = SW_LED_MODE2; 2483 break; 2484 2485 case RT_CID_DLINK: 2486 priv->LedStrategy = SW_LED_MODE4; 2487 break; 2488 2489 default: 2490 priv->LedStrategy = SW_LED_MODE0; 2491 break; 2492 } 2493 2494 if (priv->rf_type == RF_1T2R) 2495 RT_TRACE(COMP_EPROM, "\n1T2R config\n"); 2496 else 2497 RT_TRACE(COMP_EPROM, "\n2T4R config\n"); 2498 2499 /* We can only know RF type in the function. So we have to init 2500 * DIG RATR table again. 2501 */ 2502 init_rate_adaptive(dev); 2503 2504 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__); 2505 2506 return 0; 2507 } 2508 2509 static short rtl8192_get_channel_map(struct net_device *dev) 2510 { 2511 struct r8192_priv *priv = ieee80211_priv(dev); 2512 2513 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) { 2514 netdev_err(dev, 2515 "rtl8180_init: Error channel plan! Set to default.\n"); 2516 priv->ChannelPlan = 0; 2517 } 2518 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan); 2519 2520 rtl819x_set_channel_map(priv->ChannelPlan, priv); 2521 return 0; 2522 } 2523 2524 static short rtl8192_init(struct net_device *dev) 2525 { 2526 struct r8192_priv *priv = ieee80211_priv(dev); 2527 int err; 2528 2529 memset(&(priv->stats), 0, sizeof(struct Stats)); 2530 memset(priv->txqueue_to_outpipemap, 0, 9); 2531 #ifdef PIPE12 2532 { 2533 int i = 0; 2534 static const u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5}; 2535 2536 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); 2537 } 2538 #else 2539 { 2540 const u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4}; 2541 2542 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); 2543 } 2544 #endif 2545 err = rtl8192_init_priv_variable(dev); 2546 if (err) 2547 return err; 2548 2549 rtl8192_init_priv_lock(priv); 2550 rtl8192_init_priv_task(dev); 2551 rtl8192_get_eeprom_size(dev); 2552 err = rtl8192_read_eeprom_info(dev); 2553 if (err) { 2554 DMESG("Reading EEPROM info failed"); 2555 return err; 2556 } 2557 rtl8192_get_channel_map(dev); 2558 init_hal_dm(dev); 2559 timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0); 2560 if (rtl8192_usb_initendpoints(dev) != 0) { 2561 DMESG("Endopoints initialization failed"); 2562 return -ENOMEM; 2563 } 2564 2565 return 0; 2566 } 2567 2568 /****************************************************************************** 2569 *function: This function actually only set RRSR, RATR and BW_OPMODE registers 2570 * not to do all the hw config as its name says 2571 * input: net_device dev 2572 * output: none 2573 * return: none 2574 * notice: This part need to modified according to the rate set we filtered 2575 * ****************************************************************************/ 2576 static void rtl8192_hwconfig(struct net_device *dev) 2577 { 2578 u32 regRATR = 0, regRRSR = 0; 2579 u8 regBwOpMode = 0, regTmp = 0; 2580 struct r8192_priv *priv = ieee80211_priv(dev); 2581 u32 ratr_value = 0; 2582 2583 /* Set RRSR, RATR, and BW_OPMODE registers */ 2584 switch (priv->ieee80211->mode) { 2585 case WIRELESS_MODE_B: 2586 regBwOpMode = BW_OPMODE_20MHZ; 2587 regRATR = RATE_ALL_CCK; 2588 regRRSR = RATE_ALL_CCK; 2589 break; 2590 case WIRELESS_MODE_A: 2591 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ; 2592 regRATR = RATE_ALL_OFDM_AG; 2593 regRRSR = RATE_ALL_OFDM_AG; 2594 break; 2595 case WIRELESS_MODE_G: 2596 regBwOpMode = BW_OPMODE_20MHZ; 2597 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2598 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2599 break; 2600 case WIRELESS_MODE_AUTO: 2601 regBwOpMode = BW_OPMODE_20MHZ; 2602 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | 2603 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; 2604 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2605 break; 2606 case WIRELESS_MODE_N_24G: 2607 /* It support CCK rate by default. CCK rate will be filtered 2608 * out only when associated AP does not support it. 2609 */ 2610 regBwOpMode = BW_OPMODE_20MHZ; 2611 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | 2612 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; 2613 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2614 break; 2615 case WIRELESS_MODE_N_5G: 2616 regBwOpMode = BW_OPMODE_5G; 2617 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | 2618 RATE_ALL_OFDM_2SS; 2619 regRRSR = RATE_ALL_OFDM_AG; 2620 break; 2621 } 2622 2623 write_nic_byte(dev, BW_OPMODE, regBwOpMode); 2624 ratr_value = regRATR; 2625 if (priv->rf_type == RF_1T2R) 2626 ratr_value &= ~(RATE_ALL_OFDM_2SS); 2627 write_nic_dword(dev, RATR0, ratr_value); 2628 write_nic_byte(dev, UFWP, 1); 2629 read_nic_byte(dev, 0x313, ®Tmp); 2630 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff); 2631 write_nic_dword(dev, RRSR, regRRSR); 2632 2633 /* Set Retry Limit here */ 2634 write_nic_word(dev, RETRY_LIMIT, 2635 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT | 2636 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT); 2637 /* Set Contention Window here */ 2638 2639 /* Set Tx AGC */ 2640 2641 /* Set Tx Antenna including Feedback control */ 2642 2643 /* Set Auto Rate fallback control */ 2644 } 2645 2646 /* InitializeAdapter and PhyCfg */ 2647 static bool rtl8192_adapter_start(struct net_device *dev) 2648 { 2649 struct r8192_priv *priv = ieee80211_priv(dev); 2650 u32 dwRegRead = 0; 2651 bool init_status = true; 2652 u8 SECR_value = 0x0; 2653 u8 tmp; 2654 2655 RT_TRACE(COMP_INIT, "====>%s()\n", __func__); 2656 priv->Rf_Mode = RF_OP_By_SW_3wire; 2657 /* for ASIC power on sequence */ 2658 write_nic_byte_E(dev, 0x5f, 0x80); 2659 mdelay(50); 2660 write_nic_byte_E(dev, 0x5f, 0xf0); 2661 write_nic_byte_E(dev, 0x5d, 0x00); 2662 write_nic_byte_E(dev, 0x5e, 0x80); 2663 write_nic_byte(dev, 0x17, 0x37); 2664 mdelay(10); 2665 priv->pFirmware->firmware_status = FW_STATUS_0_INIT; 2666 /* config CPUReset Register */ 2667 /* Firmware Reset or not? */ 2668 read_nic_dword(dev, CPU_GEN, &dwRegRead); 2669 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */ 2670 2671 write_nic_dword(dev, CPU_GEN, dwRegRead); 2672 /* config BB. */ 2673 rtl8192_BBConfig(dev); 2674 2675 /* Loopback mode or not */ 2676 priv->LoopbackMode = RTL819xU_NO_LOOPBACK; 2677 2678 read_nic_dword(dev, CPU_GEN, &dwRegRead); 2679 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK) 2680 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) | 2681 CPU_GEN_NO_LOOPBACK_SET; 2682 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK) 2683 dwRegRead |= CPU_CCK_LOOPBACK; 2684 else 2685 RT_TRACE(COMP_ERR, 2686 "Serious error in %s(): wrong loopback mode setting(%d)\n", 2687 __func__, priv->LoopbackMode); 2688 2689 write_nic_dword(dev, CPU_GEN, dwRegRead); 2690 2691 /* after reset cpu, we need wait for a seconds to write in register. */ 2692 udelay(500); 2693 2694 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */ 2695 read_nic_byte_E(dev, 0x5f, &tmp); 2696 write_nic_byte_E(dev, 0x5f, tmp | 0x20); 2697 2698 /* Set Hardware */ 2699 rtl8192_hwconfig(dev); 2700 2701 /* turn on Tx/Rx */ 2702 write_nic_byte(dev, CMDR, CR_RE | CR_TE); 2703 2704 /* set IDR0 here */ 2705 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]); 2706 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]); 2707 2708 /* set RCR */ 2709 write_nic_dword(dev, RCR, priv->ReceiveConfig); 2710 2711 /* Initialize Number of Reserved Pages in Firmware Queue */ 2712 write_nic_dword(dev, RQPN1, 2713 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT | 2714 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT | 2715 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT | 2716 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT); 2717 write_nic_dword(dev, RQPN2, 2718 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT | 2719 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT); 2720 write_nic_dword(dev, RQPN3, 2721 APPLIED_RESERVED_QUEUE_IN_FW | 2722 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT); 2723 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK)); 2724 2725 /* Set AckTimeout */ 2726 /* TODO: (it value is only for FPGA version). need to be changed!! */ 2727 write_nic_byte(dev, ACK_TIMEOUT, 0x30); 2728 2729 if (priv->ResetProgress == RESET_TYPE_NORESET) 2730 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode); 2731 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2732 CamResetAllEntry(dev); 2733 SECR_value |= SCR_TxEncEnable; 2734 SECR_value |= SCR_RxDecEnable; 2735 SECR_value |= SCR_NoSKMC; 2736 write_nic_byte(dev, SECR, SECR_value); 2737 } 2738 2739 /* Beacon related */ 2740 write_nic_word(dev, ATIMWND, 2); 2741 write_nic_word(dev, BCN_INTERVAL, 100); 2742 2743 #define DEFAULT_EDCA 0x005e4332 2744 { 2745 int i; 2746 2747 for (i = 0; i < QOS_QUEUE_NUM; i++) 2748 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA); 2749 } 2750 2751 rtl8192_phy_configmac(dev); 2752 2753 if (priv->card_8192_version == VERSION_819XU_A) { 2754 rtl8192_phy_getTxPower(dev); 2755 rtl8192_phy_setTxPower(dev, priv->chan); 2756 } 2757 2758 /* Firmware download */ 2759 init_status = init_firmware(dev); 2760 if (!init_status) { 2761 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n", 2762 __func__); 2763 return init_status; 2764 } 2765 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__); 2766 2767 /* config RF. */ 2768 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2769 rtl8192_phy_RFConfig(dev); 2770 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__); 2771 } 2772 2773 if (priv->ieee80211->FwRWRF) 2774 /* We can force firmware to do RF-R/W */ 2775 priv->Rf_Mode = RF_OP_By_FW; 2776 else 2777 priv->Rf_Mode = RF_OP_By_SW_3wire; 2778 2779 rtl8192_phy_updateInitGain(dev); 2780 /*--set CCK and OFDM Block "ON"--*/ 2781 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1); 2782 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1); 2783 2784 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2785 /* if D or C cut */ 2786 u8 tmpvalue; 2787 2788 read_nic_byte(dev, 0x301, &tmpvalue); 2789 if (tmpvalue == 0x03) { 2790 priv->bDcut = true; 2791 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n"); 2792 } else { 2793 priv->bDcut = false; 2794 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n"); 2795 } 2796 dm_initialize_txpower_tracking(dev); 2797 2798 if (priv->bDcut) { 2799 u32 i, TempCCk; 2800 u32 tmpRegA = rtl8192_QueryBBReg(dev, 2801 rOFDM0_XATxIQImbalance, 2802 bMaskDWord); 2803 2804 for (i = 0; i < TxBBGainTableLength; i++) { 2805 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) { 2806 priv->rfa_txpowertrackingindex = (u8)i; 2807 priv->rfa_txpowertrackingindex_real = 2808 (u8)i; 2809 priv->rfa_txpowertracking_default = 2810 priv->rfa_txpowertrackingindex; 2811 break; 2812 } 2813 } 2814 2815 TempCCk = rtl8192_QueryBBReg(dev, 2816 rCCK0_TxFilter1, 2817 bMaskByte2); 2818 2819 for (i = 0; i < CCKTxBBGainTableLength; i++) { 2820 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) { 2821 priv->cck_present_attenuation_20Mdefault = (u8)i; 2822 break; 2823 } 2824 } 2825 priv->cck_present_attenuation_40Mdefault = 0; 2826 priv->cck_present_attenuation_difference = 0; 2827 priv->cck_present_attenuation = 2828 priv->cck_present_attenuation_20Mdefault; 2829 } 2830 } 2831 write_nic_byte(dev, 0x87, 0x0); 2832 2833 return init_status; 2834 } 2835 2836 /* this configures registers for beacon tx and enables it via 2837 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might 2838 * be used to stop beacon transmission 2839 */ 2840 /*************************************************************************** 2841 * -------------------------------NET STUFF--------------------------- 2842 ***************************************************************************/ 2843 2844 static struct net_device_stats *rtl8192_stats(struct net_device *dev) 2845 { 2846 struct r8192_priv *priv = ieee80211_priv(dev); 2847 2848 return &priv->ieee80211->stats; 2849 } 2850 2851 static bool HalTxCheckStuck819xUsb(struct net_device *dev) 2852 { 2853 struct r8192_priv *priv = ieee80211_priv(dev); 2854 u16 RegTxCounter; 2855 bool bStuck = false; 2856 2857 read_nic_word(dev, 0x128, &RegTxCounter); 2858 RT_TRACE(COMP_RESET, 2859 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__, 2860 RegTxCounter, priv->TxCounter); 2861 if (priv->TxCounter == RegTxCounter) 2862 bStuck = true; 2863 2864 priv->TxCounter = RegTxCounter; 2865 2866 return bStuck; 2867 } 2868 2869 /* 2870 * <Assumption: RT_TX_SPINLOCK is acquired.> 2871 * First added: 2006.11.19 by emily 2872 */ 2873 static RESET_TYPE TxCheckStuck(struct net_device *dev) 2874 { 2875 struct r8192_priv *priv = ieee80211_priv(dev); 2876 u8 QueueID; 2877 bool bCheckFwTxCnt = false; 2878 2879 /* Decide such threshold according to current power save mode */ 2880 2881 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) { 2882 if (QueueID == TXCMD_QUEUE) 2883 continue; 2884 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0)) 2885 continue; 2886 2887 bCheckFwTxCnt = true; 2888 } 2889 if (bCheckFwTxCnt) { 2890 if (HalTxCheckStuck819xUsb(dev)) { 2891 RT_TRACE(COMP_RESET, 2892 "%s: Fw indicates no Tx condition!\n", 2893 __func__); 2894 return RESET_TYPE_SILENT; 2895 } 2896 } 2897 return RESET_TYPE_NORESET; 2898 } 2899 2900 static bool HalRxCheckStuck819xUsb(struct net_device *dev) 2901 { 2902 u16 RegRxCounter; 2903 struct r8192_priv *priv = ieee80211_priv(dev); 2904 bool bStuck = false; 2905 static u8 rx_chk_cnt; 2906 2907 read_nic_word(dev, 0x130, &RegRxCounter); 2908 RT_TRACE(COMP_RESET, 2909 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__, 2910 RegRxCounter, priv->RxCounter); 2911 /* If rssi is small, we should check rx for long time because of bad rx. 2912 * or maybe it will continuous silent reset every 2 seconds. 2913 */ 2914 rx_chk_cnt++; 2915 if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) { 2916 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */ 2917 } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) && 2918 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) || 2919 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) { 2920 if (rx_chk_cnt < 2) 2921 return bStuck; 2922 2923 rx_chk_cnt = 0; 2924 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) || 2925 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) && 2926 priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) { 2927 if (rx_chk_cnt < 4) 2928 return bStuck; 2929 2930 rx_chk_cnt = 0; 2931 } else { 2932 if (rx_chk_cnt < 8) 2933 return bStuck; 2934 2935 rx_chk_cnt = 0; 2936 } 2937 2938 if (priv->RxCounter == RegRxCounter) 2939 bStuck = true; 2940 2941 priv->RxCounter = RegRxCounter; 2942 2943 return bStuck; 2944 } 2945 2946 static RESET_TYPE RxCheckStuck(struct net_device *dev) 2947 { 2948 struct r8192_priv *priv = ieee80211_priv(dev); 2949 bool bRxCheck = false; 2950 2951 if (priv->IrpPendingCount > 1) 2952 bRxCheck = true; 2953 2954 if (bRxCheck) { 2955 if (HalRxCheckStuck819xUsb(dev)) { 2956 RT_TRACE(COMP_RESET, "RxStuck Condition\n"); 2957 return RESET_TYPE_SILENT; 2958 } 2959 } 2960 return RESET_TYPE_NORESET; 2961 } 2962 2963 /* 2964 * This function is called by Checkforhang to check whether we should 2965 * ask OS to reset driver 2966 * 2967 * Note:NIC with USB interface sholud not call this function because we 2968 * cannot scan descriptor to judge whether there is tx stuck. 2969 * Note: This function may be required to be rewrite for Vista OS. 2970 * <<<Assumption: Tx spinlock has been acquired >>> 2971 * 2972 * 8185 and 8185b does not implement this function. 2973 */ 2974 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev) 2975 { 2976 struct r8192_priv *priv = ieee80211_priv(dev); 2977 RESET_TYPE TxResetType = RESET_TYPE_NORESET; 2978 RESET_TYPE RxResetType = RESET_TYPE_NORESET; 2979 RT_RF_POWER_STATE rfState; 2980 2981 rfState = priv->ieee80211->eRFPowerState; 2982 2983 TxResetType = TxCheckStuck(dev); 2984 if (rfState != eRfOff || 2985 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) { 2986 /* If driver is in the status of firmware download failure, 2987 * driver skips RF initialization and RF is in turned off 2988 * state. Driver should check whether Rx stuck and do silent 2989 * reset. And if driver is in firmware download failure status, 2990 * driver should initialize RF in the following silent reset 2991 * procedure 2992 * 2993 * Driver should not check RX stuck in IBSS mode because it is 2994 * required to set Check BSSID in order to send beacon, 2995 * however, if check BSSID is set, STA cannot hear any packet 2996 * at all. 2997 */ 2998 RxResetType = RxCheckStuck(dev); 2999 } 3000 if (TxResetType == RESET_TYPE_NORMAL || 3001 RxResetType == RESET_TYPE_NORMAL) { 3002 return RESET_TYPE_NORMAL; 3003 } else if (TxResetType == RESET_TYPE_SILENT || 3004 RxResetType == RESET_TYPE_SILENT) { 3005 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__); 3006 return RESET_TYPE_SILENT; 3007 } else { 3008 return RESET_TYPE_NORESET; 3009 } 3010 } 3011 3012 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv); 3013 static int _rtl8192_up(struct net_device *dev); 3014 static int rtl8192_close(struct net_device *dev); 3015 3016 static void CamRestoreAllEntry(struct net_device *dev) 3017 { 3018 u8 EntryId = 0; 3019 struct r8192_priv *priv = ieee80211_priv(dev); 3020 u8 *MacAddr = priv->ieee80211->current_network.bssid; 3021 3022 static u8 CAM_CONST_ADDR[4][6] = { 3023 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 3024 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, 3025 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, 3026 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} }; 3027 static u8 CAM_CONST_BROAD[] = { 3028 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3029 3030 RT_TRACE(COMP_SEC, "%s:\n", __func__); 3031 3032 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) || 3033 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) { 3034 for (EntryId = 0; EntryId < 4; EntryId++) { 3035 MacAddr = CAM_CONST_ADDR[EntryId]; 3036 setKey(dev, EntryId, EntryId, 3037 priv->ieee80211->pairwise_key_type, 3038 MacAddr, 0, NULL); 3039 } 3040 3041 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) { 3042 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3043 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3044 (const u8 *)dev->dev_addr, 0, NULL); 3045 else 3046 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3047 MacAddr, 0, NULL); 3048 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) { 3049 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3050 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3051 (const u8 *)dev->dev_addr, 0, NULL); 3052 else 3053 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3054 MacAddr, 0, NULL); 3055 } 3056 3057 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) { 3058 MacAddr = CAM_CONST_BROAD; 3059 for (EntryId = 1; EntryId < 4; EntryId++) { 3060 setKey(dev, EntryId, EntryId, 3061 priv->ieee80211->group_key_type, 3062 MacAddr, 0, NULL); 3063 } 3064 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3065 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3066 CAM_CONST_ADDR[0], 0, NULL); 3067 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) { 3068 MacAddr = CAM_CONST_BROAD; 3069 for (EntryId = 1; EntryId < 4; EntryId++) { 3070 setKey(dev, EntryId, EntryId, 3071 priv->ieee80211->group_key_type, 3072 MacAddr, 0, NULL); 3073 } 3074 3075 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3076 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3077 CAM_CONST_ADDR[0], 0, NULL); 3078 } 3079 } 3080 3081 /* This function is used to fix Tx/Rx stop bug temporarily. 3082 * This function will do "system reset" to NIC when Tx or Rx is stuck. 3083 * The method checking Tx/Rx stuck of this function is supported by FW, 3084 * which reports Tx and Rx counter to register 0x128 and 0x130. 3085 */ 3086 static void rtl819x_ifsilentreset(struct net_device *dev) 3087 { 3088 struct r8192_priv *priv = ieee80211_priv(dev); 3089 u8 reset_times = 0; 3090 int reset_status = 0; 3091 struct ieee80211_device *ieee = priv->ieee80211; 3092 3093 /* If we need to check CCK stop, please uncomment this line. */ 3094 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */ 3095 3096 if (priv->ResetProgress == RESET_TYPE_NORESET) { 3097 RESET_START: 3098 3099 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n"); 3100 3101 /* Set the variable for reset. */ 3102 priv->ResetProgress = RESET_TYPE_SILENT; 3103 mutex_lock(&priv->wx_mutex); 3104 if (priv->up == 0) { 3105 RT_TRACE(COMP_ERR, 3106 "%s():the driver is not up! return\n", 3107 __func__); 3108 mutex_unlock(&priv->wx_mutex); 3109 return; 3110 } 3111 priv->up = 0; 3112 RT_TRACE(COMP_RESET, 3113 "%s():======>start to down the driver\n", 3114 __func__); 3115 3116 rtl8192_rtx_disable(dev); 3117 rtl8192_cancel_deferred_work(priv); 3118 deinit_hal_dm(dev); 3119 del_timer_sync(&priv->watch_dog_timer); 3120 3121 ieee->sync_scan_hurryup = 1; 3122 if (ieee->state == IEEE80211_LINKED) { 3123 mutex_lock(&ieee->wx_mutex); 3124 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n"); 3125 ieee80211_stop_send_beacons(priv->ieee80211); 3126 del_timer_sync(&ieee->associate_timer); 3127 cancel_delayed_work(&ieee->associate_retry_wq); 3128 ieee80211_stop_scan(ieee); 3129 netif_carrier_off(dev); 3130 mutex_unlock(&ieee->wx_mutex); 3131 } else { 3132 netdev_dbg(dev, "ieee->state is NOT LINKED\n"); 3133 ieee80211_softmac_stop_protocol(priv->ieee80211); 3134 } 3135 mutex_unlock(&priv->wx_mutex); 3136 RT_TRACE(COMP_RESET, 3137 "%s():<==========down process is finished\n", 3138 __func__); 3139 RT_TRACE(COMP_RESET, 3140 "%s():===========>start up the driver\n", 3141 __func__); 3142 reset_status = _rtl8192_up(dev); 3143 3144 RT_TRACE(COMP_RESET, 3145 "%s():<===========up process is finished\n", 3146 __func__); 3147 if (reset_status == -EAGAIN) { 3148 if (reset_times < 3) { 3149 reset_times++; 3150 goto RESET_START; 3151 } else { 3152 RT_TRACE(COMP_ERR, 3153 " ERR!!! %s(): Reset Failed!!\n", 3154 __func__); 3155 } 3156 } 3157 ieee->is_silent_reset = 1; 3158 EnableHWSecurityConfig8192(dev); 3159 if (ieee->state == IEEE80211_LINKED && 3160 ieee->iw_mode == IW_MODE_INFRA) { 3161 ieee->set_chan(ieee->dev, 3162 ieee->current_network.channel); 3163 3164 queue_work(ieee->wq, &ieee->associate_complete_wq); 3165 3166 } else if (ieee->state == IEEE80211_LINKED && 3167 ieee->iw_mode == IW_MODE_ADHOC) { 3168 ieee->set_chan(ieee->dev, 3169 ieee->current_network.channel); 3170 ieee->link_change(ieee->dev); 3171 3172 ieee80211_start_send_beacons(ieee); 3173 3174 if (ieee->data_hard_resume) 3175 ieee->data_hard_resume(ieee->dev); 3176 netif_carrier_on(ieee->dev); 3177 } 3178 3179 CamRestoreAllEntry(dev); 3180 3181 priv->ResetProgress = RESET_TYPE_NORESET; 3182 priv->reset_count++; 3183 3184 priv->bForcedSilentReset = false; 3185 priv->bResetInProgress = false; 3186 3187 /* For test --> force write UFWP. */ 3188 write_nic_byte(dev, UFWP, 1); 3189 RT_TRACE(COMP_RESET, 3190 "Reset finished!! ====>[%d]\n", 3191 priv->reset_count); 3192 } 3193 } 3194 3195 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum, 3196 u32 *TotalRxDataNum) 3197 { 3198 u16 SlotIndex; 3199 u16 i; 3200 3201 *TotalRxBcnNum = 0; 3202 *TotalRxDataNum = 0; 3203 3204 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) % 3205 (priv->ieee80211->LinkDetectInfo.SlotNum); 3206 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] = 3207 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod; 3208 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] = 3209 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod; 3210 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) { 3211 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i]; 3212 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i]; 3213 } 3214 } 3215 3216 static void rtl819x_watchdog_wqcallback(struct work_struct *work) 3217 { 3218 struct delayed_work *dwork = to_delayed_work(work); 3219 struct r8192_priv *priv = container_of(dwork, 3220 struct r8192_priv, watch_dog_wq); 3221 struct net_device *dev = priv->ieee80211->dev; 3222 struct ieee80211_device *ieee = priv->ieee80211; 3223 RESET_TYPE ResetType = RESET_TYPE_NORESET; 3224 static u8 check_reset_cnt; 3225 bool bBusyTraffic = false; 3226 u32 TotalRxBcnNum = 0; 3227 u32 TotalRxDataNum = 0; 3228 3229 if (!priv->up) 3230 return; 3231 hal_dm_watchdog(dev); 3232 3233 /* to get busy traffic condition */ 3234 if (ieee->state == IEEE80211_LINKED) { 3235 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 || 3236 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) { 3237 bBusyTraffic = true; 3238 } 3239 ieee->LinkDetectInfo.NumRxOkInPeriod = 0; 3240 ieee->LinkDetectInfo.NumTxOkInPeriod = 0; 3241 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic; 3242 } 3243 /* for AP roaming */ 3244 if (priv->ieee80211->state == IEEE80211_LINKED && 3245 priv->ieee80211->iw_mode == IW_MODE_INFRA) { 3246 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum); 3247 if ((TotalRxBcnNum + TotalRxDataNum) == 0) { 3248 #ifdef TODO 3249 if (rfState == eRfOff) 3250 RT_TRACE(COMP_ERR, "========>%s()\n", __func__); 3251 #endif 3252 netdev_dbg(dev, 3253 "===>%s(): AP is power off, connect another one\n", 3254 __func__); 3255 priv->ieee80211->state = IEEE80211_ASSOCIATING; 3256 notify_wx_assoc_event(priv->ieee80211); 3257 RemovePeerTS(priv->ieee80211, 3258 priv->ieee80211->current_network.bssid); 3259 priv->ieee80211->link_change(dev); 3260 queue_work(priv->ieee80211->wq, 3261 &priv->ieee80211->associate_procedure_wq); 3262 } 3263 } 3264 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0; 3265 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0; 3266 /* check if reset the driver */ 3267 if (check_reset_cnt++ >= 3) { 3268 ResetType = rtl819x_ifcheck_resetornot(dev); 3269 check_reset_cnt = 3; 3270 } 3271 /* This is control by OID set in Pomelo */ 3272 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET && 3273 (priv->bForcedSilentReset || 3274 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) { 3275 RT_TRACE(COMP_RESET, 3276 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n", 3277 __func__, priv->force_reset, priv->ResetProgress, 3278 priv->bForcedSilentReset, 3279 priv->bDisableNormalResetCheck, ResetType); 3280 rtl819x_ifsilentreset(dev); 3281 } 3282 priv->force_reset = false; 3283 priv->bForcedSilentReset = false; 3284 priv->bResetInProgress = false; 3285 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n"); 3286 } 3287 3288 static void watch_dog_timer_callback(struct timer_list *t) 3289 { 3290 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer); 3291 3292 schedule_delayed_work(&priv->watch_dog_wq, 0); 3293 mod_timer(&priv->watch_dog_timer, 3294 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME)); 3295 } 3296 3297 static int _rtl8192_up(struct net_device *dev) 3298 { 3299 struct r8192_priv *priv = ieee80211_priv(dev); 3300 int init_status = 0; 3301 3302 priv->up = 1; 3303 priv->ieee80211->ieee_up = 1; 3304 RT_TRACE(COMP_INIT, "Bringing up iface"); 3305 init_status = rtl8192_adapter_start(dev); 3306 if (!init_status) { 3307 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n", 3308 __func__); 3309 priv->up = priv->ieee80211->ieee_up = 0; 3310 return -EAGAIN; 3311 } 3312 RT_TRACE(COMP_INIT, "start adapter finished\n"); 3313 rtl8192_rx_enable(dev); 3314 if (priv->ieee80211->state != IEEE80211_LINKED) 3315 ieee80211_softmac_start_protocol(priv->ieee80211); 3316 ieee80211_reset_queue(priv->ieee80211); 3317 watch_dog_timer_callback(&priv->watch_dog_timer); 3318 if (!netif_queue_stopped(dev)) 3319 netif_start_queue(dev); 3320 else 3321 netif_wake_queue(dev); 3322 3323 return 0; 3324 } 3325 3326 static int rtl8192_open(struct net_device *dev) 3327 { 3328 struct r8192_priv *priv = ieee80211_priv(dev); 3329 int ret; 3330 3331 mutex_lock(&priv->wx_mutex); 3332 ret = rtl8192_up(dev); 3333 mutex_unlock(&priv->wx_mutex); 3334 return ret; 3335 } 3336 3337 int rtl8192_up(struct net_device *dev) 3338 { 3339 struct r8192_priv *priv = ieee80211_priv(dev); 3340 3341 if (priv->up == 1) 3342 return -1; 3343 3344 return _rtl8192_up(dev); 3345 } 3346 3347 static int rtl8192_close(struct net_device *dev) 3348 { 3349 struct r8192_priv *priv = ieee80211_priv(dev); 3350 int ret; 3351 3352 mutex_lock(&priv->wx_mutex); 3353 3354 ret = rtl8192_down(dev); 3355 3356 mutex_unlock(&priv->wx_mutex); 3357 3358 return ret; 3359 } 3360 3361 int rtl8192_down(struct net_device *dev) 3362 { 3363 struct r8192_priv *priv = ieee80211_priv(dev); 3364 int i; 3365 3366 if (priv->up == 0) 3367 return -1; 3368 3369 priv->up = 0; 3370 priv->ieee80211->ieee_up = 0; 3371 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__); 3372 /* FIXME */ 3373 if (!netif_queue_stopped(dev)) 3374 netif_stop_queue(dev); 3375 3376 rtl8192_rtx_disable(dev); 3377 3378 /* Tx related queue release */ 3379 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3380 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]); 3381 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3382 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]); 3383 3384 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3385 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]); 3386 3387 /* as cancel_delayed_work will del work->timer, so if work is not 3388 * defined as struct delayed_work, it will corrupt 3389 */ 3390 rtl8192_cancel_deferred_work(priv); 3391 deinit_hal_dm(dev); 3392 del_timer_sync(&priv->watch_dog_timer); 3393 3394 ieee80211_softmac_stop_protocol(priv->ieee80211); 3395 memset(&priv->ieee80211->current_network, 0, 3396 offsetof(struct ieee80211_network, list)); 3397 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__); 3398 3399 return 0; 3400 } 3401 3402 void rtl8192_commit(struct net_device *dev) 3403 { 3404 struct r8192_priv *priv = ieee80211_priv(dev); 3405 3406 if (priv->up == 0) 3407 return; 3408 priv->up = 0; 3409 3410 rtl8192_cancel_deferred_work(priv); 3411 del_timer_sync(&priv->watch_dog_timer); 3412 3413 ieee80211_softmac_stop_protocol(priv->ieee80211); 3414 3415 rtl8192_rtx_disable(dev); 3416 _rtl8192_up(dev); 3417 } 3418 3419 static void rtl8192_restart(struct work_struct *work) 3420 { 3421 struct r8192_priv *priv = container_of(work, struct r8192_priv, 3422 reset_wq); 3423 struct net_device *dev = priv->ieee80211->dev; 3424 3425 mutex_lock(&priv->wx_mutex); 3426 3427 rtl8192_commit(dev); 3428 3429 mutex_unlock(&priv->wx_mutex); 3430 } 3431 3432 static void r8192_set_multicast(struct net_device *dev) 3433 { 3434 struct r8192_priv *priv = ieee80211_priv(dev); 3435 short promisc; 3436 3437 /* FIXME FIXME */ 3438 3439 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 3440 3441 if (promisc != priv->promisc) 3442 3443 priv->promisc = promisc; 3444 } 3445 3446 static int r8192_set_mac_adr(struct net_device *dev, void *mac) 3447 { 3448 struct r8192_priv *priv = ieee80211_priv(dev); 3449 struct sockaddr *addr = mac; 3450 3451 mutex_lock(&priv->wx_mutex); 3452 3453 eth_hw_addr_set(dev, addr->sa_data); 3454 3455 schedule_work(&priv->reset_wq); 3456 mutex_unlock(&priv->wx_mutex); 3457 3458 return 0; 3459 } 3460 3461 /* based on ipw2200 driver */ 3462 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 3463 { 3464 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3465 struct iwreq *wrq = (struct iwreq *)rq; 3466 int ret = -1; 3467 struct ieee80211_device *ieee = priv->ieee80211; 3468 u32 key[4]; 3469 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3470 struct iw_point *p = &wrq->u.data; 3471 struct ieee_param *ipw = NULL; 3472 3473 mutex_lock(&priv->wx_mutex); 3474 3475 if (p->length < sizeof(struct ieee_param) || !p->pointer) { 3476 ret = -EINVAL; 3477 goto out; 3478 } 3479 3480 ipw = memdup_user(p->pointer, p->length); 3481 if (IS_ERR(ipw)) { 3482 ret = PTR_ERR(ipw); 3483 goto out; 3484 } 3485 3486 switch (cmd) { 3487 case RTL_IOCTL_WPA_SUPPLICANT: 3488 /* parse here for HW security */ 3489 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) { 3490 if (ipw->u.crypt.set_tx) { 3491 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3492 ieee->pairwise_key_type = KEY_TYPE_CCMP; 3493 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3494 ieee->pairwise_key_type = KEY_TYPE_TKIP; 3495 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3496 if (ipw->u.crypt.key_len == 13) 3497 ieee->pairwise_key_type = KEY_TYPE_WEP104; 3498 else if (ipw->u.crypt.key_len == 5) 3499 ieee->pairwise_key_type = KEY_TYPE_WEP40; 3500 } else { 3501 ieee->pairwise_key_type = KEY_TYPE_NA; 3502 } 3503 3504 if (ieee->pairwise_key_type) { 3505 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3506 EnableHWSecurityConfig8192(dev); 3507 /* We fill both index entry and 4th 3508 * entry for pairwise key as in IPW 3509 * interface, adhoc will only get here, 3510 * so we need index entry for its 3511 * default key serching! 3512 */ 3513 setKey(dev, 4, ipw->u.crypt.idx, 3514 ieee->pairwise_key_type, 3515 (u8 *)ieee->ap_mac_addr, 3516 0, key); 3517 if (ieee->auth_mode != 2) 3518 setKey(dev, ipw->u.crypt.idx, 3519 ipw->u.crypt.idx, 3520 ieee->pairwise_key_type, 3521 (u8 *)ieee->ap_mac_addr, 3522 0, key); 3523 } 3524 } else { 3525 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3526 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3527 ieee->group_key_type = KEY_TYPE_CCMP; 3528 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3529 ieee->group_key_type = KEY_TYPE_TKIP; 3530 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3531 if (ipw->u.crypt.key_len == 13) 3532 ieee->group_key_type = KEY_TYPE_WEP104; 3533 else if (ipw->u.crypt.key_len == 5) 3534 ieee->group_key_type = KEY_TYPE_WEP40; 3535 } else { 3536 ieee->group_key_type = KEY_TYPE_NA; 3537 } 3538 3539 if (ieee->group_key_type) { 3540 setKey(dev, ipw->u.crypt.idx, 3541 /* KeyIndex */ 3542 ipw->u.crypt.idx, 3543 /* KeyType */ 3544 ieee->group_key_type, 3545 /* MacAddr */ 3546 broadcast_addr, 3547 /* DefaultKey */ 3548 0, 3549 /* KeyContent */ 3550 key); 3551 } 3552 } 3553 } 3554 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, 3555 &wrq->u.data); 3556 break; 3557 3558 default: 3559 ret = -EOPNOTSUPP; 3560 break; 3561 } 3562 kfree(ipw); 3563 ipw = NULL; 3564 out: 3565 mutex_unlock(&priv->wx_mutex); 3566 return ret; 3567 } 3568 3569 static u8 HwRateToMRate90(bool bIsHT, u8 rate) 3570 { 3571 u8 ret_rate = 0xff; 3572 3573 if (!bIsHT) { 3574 switch (rate) { 3575 case DESC90_RATE1M: 3576 ret_rate = MGN_1M; 3577 break; 3578 case DESC90_RATE2M: 3579 ret_rate = MGN_2M; 3580 break; 3581 case DESC90_RATE5_5M: 3582 ret_rate = MGN_5_5M; 3583 break; 3584 case DESC90_RATE11M: 3585 ret_rate = MGN_11M; 3586 break; 3587 case DESC90_RATE6M: 3588 ret_rate = MGN_6M; 3589 break; 3590 case DESC90_RATE9M: 3591 ret_rate = MGN_9M; 3592 break; 3593 case DESC90_RATE12M: 3594 ret_rate = MGN_12M; 3595 break; 3596 case DESC90_RATE18M: 3597 ret_rate = MGN_18M; 3598 break; 3599 case DESC90_RATE24M: 3600 ret_rate = MGN_24M; 3601 break; 3602 case DESC90_RATE36M: 3603 ret_rate = MGN_36M; 3604 break; 3605 case DESC90_RATE48M: 3606 ret_rate = MGN_48M; 3607 break; 3608 case DESC90_RATE54M: 3609 ret_rate = MGN_54M; 3610 break; 3611 3612 default: 3613 ret_rate = 0xff; 3614 RT_TRACE(COMP_RECV, 3615 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3616 __func__, rate, bIsHT); 3617 break; 3618 } 3619 3620 } else { 3621 switch (rate) { 3622 case DESC90_RATEMCS0: 3623 ret_rate = MGN_MCS0; 3624 break; 3625 case DESC90_RATEMCS1: 3626 ret_rate = MGN_MCS1; 3627 break; 3628 case DESC90_RATEMCS2: 3629 ret_rate = MGN_MCS2; 3630 break; 3631 case DESC90_RATEMCS3: 3632 ret_rate = MGN_MCS3; 3633 break; 3634 case DESC90_RATEMCS4: 3635 ret_rate = MGN_MCS4; 3636 break; 3637 case DESC90_RATEMCS5: 3638 ret_rate = MGN_MCS5; 3639 break; 3640 case DESC90_RATEMCS6: 3641 ret_rate = MGN_MCS6; 3642 break; 3643 case DESC90_RATEMCS7: 3644 ret_rate = MGN_MCS7; 3645 break; 3646 case DESC90_RATEMCS8: 3647 ret_rate = MGN_MCS8; 3648 break; 3649 case DESC90_RATEMCS9: 3650 ret_rate = MGN_MCS9; 3651 break; 3652 case DESC90_RATEMCS10: 3653 ret_rate = MGN_MCS10; 3654 break; 3655 case DESC90_RATEMCS11: 3656 ret_rate = MGN_MCS11; 3657 break; 3658 case DESC90_RATEMCS12: 3659 ret_rate = MGN_MCS12; 3660 break; 3661 case DESC90_RATEMCS13: 3662 ret_rate = MGN_MCS13; 3663 break; 3664 case DESC90_RATEMCS14: 3665 ret_rate = MGN_MCS14; 3666 break; 3667 case DESC90_RATEMCS15: 3668 ret_rate = MGN_MCS15; 3669 break; 3670 case DESC90_RATEMCS32: 3671 ret_rate = 0x80 | 0x20; 3672 break; 3673 3674 default: 3675 ret_rate = 0xff; 3676 RT_TRACE(COMP_RECV, 3677 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3678 __func__, rate, bIsHT); 3679 break; 3680 } 3681 } 3682 3683 return ret_rate; 3684 } 3685 3686 /* 3687 * Function: UpdateRxPktTimeStamp 3688 * Overview: Record the TSF time stamp when receiving a packet 3689 * 3690 * Input: 3691 * PADAPTER Adapter 3692 * PRT_RFD pRfd, 3693 * 3694 * Output: 3695 * PRT_RFD pRfd 3696 * (pRfd->Status.TimeStampHigh is updated) 3697 * (pRfd->Status.TimeStampLow is updated) 3698 * Return: 3699 * None 3700 */ 3701 static void UpdateRxPktTimeStamp8190(struct net_device *dev, 3702 struct ieee80211_rx_stats *stats) 3703 { 3704 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3705 3706 if (stats->bIsAMPDU && !stats->bFirstMPDU) { 3707 stats->mac_time[0] = priv->LastRxDescTSFLow; 3708 stats->mac_time[1] = priv->LastRxDescTSFHigh; 3709 } else { 3710 priv->LastRxDescTSFLow = stats->mac_time[0]; 3711 priv->LastRxDescTSFHigh = stats->mac_time[1]; 3712 } 3713 } 3714 3715 /* 0-100 index. */ 3716 static long rtl819x_translate_todbm(u8 signal_strength_index) 3717 { 3718 long signal_power; /* in dBm. */ 3719 3720 /* Translate to dBm (x=0.5y-95). */ 3721 signal_power = (long)((signal_strength_index + 1) >> 1); 3722 signal_power -= 95; 3723 3724 return signal_power; 3725 } 3726 3727 /* We can not declare RSSI/EVM total value of sliding window to 3728 * be a local static. Otherwise, it may increase when we return from S3/S4. The 3729 * value will be kept in memory or disk. Declare the value in the adaptor 3730 * and it will be reinitialized when returned from S3/S4. 3731 */ 3732 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer, 3733 struct ieee80211_rx_stats *pprevious_stats, 3734 struct ieee80211_rx_stats *pcurrent_stats) 3735 { 3736 bool bcheck = false; 3737 u8 rfpath; 3738 u32 nspatial_stream, tmp_val; 3739 static u32 slide_rssi_index, slide_rssi_statistics; 3740 static u32 slide_evm_index, slide_evm_statistics; 3741 static u32 last_rssi, last_evm; 3742 3743 static u32 slide_beacon_adc_pwdb_index; 3744 static u32 slide_beacon_adc_pwdb_statistics; 3745 static u32 last_beacon_adc_pwdb; 3746 3747 struct rtl_80211_hdr_3addr *hdr; 3748 u16 sc; 3749 unsigned int seq; 3750 3751 hdr = (struct rtl_80211_hdr_3addr *)buffer; 3752 sc = le16_to_cpu(hdr->seq_ctl); 3753 seq = WLAN_GET_SEQ_SEQ(sc); 3754 /* to record the sequence number */ 3755 pcurrent_stats->Seq_Num = seq; 3756 3757 /* Check whether we should take the previous packet into accounting */ 3758 if (!pprevious_stats->bIsAMPDU) { 3759 /* if previous packet is not aggregated packet */ 3760 bcheck = true; 3761 } 3762 3763 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 3764 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX; 3765 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index]; 3766 priv->stats.slide_rssi_total -= last_rssi; 3767 } 3768 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength; 3769 3770 priv->stats.slide_signal_strength[slide_rssi_index++] = 3771 pprevious_stats->SignalStrength; 3772 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX) 3773 slide_rssi_index = 0; 3774 3775 /* <1> Showed on UI for user, in dbm */ 3776 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics; 3777 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val); 3778 pcurrent_stats->rssi = priv->stats.signal_strength; 3779 3780 /* If the previous packet does not match the criteria, neglect it */ 3781 if (!pprevious_stats->bPacketMatchBSSID) { 3782 if (!pprevious_stats->bToSelfBA) 3783 return; 3784 } 3785 3786 if (!bcheck) 3787 return; 3788 3789 /* only rtl8190 supported 3790 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats); 3791 */ 3792 3793 /* Check RSSI */ 3794 priv->stats.num_process_phyinfo++; 3795 3796 /* record the general signal strength to the sliding window. */ 3797 3798 /* <2> Showed on UI for engineering 3799 * hardware does not provide rssi information for each rf path in CCK 3800 */ 3801 if (!pprevious_stats->bIsCCK && 3802 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) { 3803 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) { 3804 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, 3805 rfpath)) 3806 continue; 3807 if (priv->stats.rx_rssi_percentage[rfpath] == 0) 3808 priv->stats.rx_rssi_percentage[rfpath] = 3809 pprevious_stats->RxMIMOSignalStrength[rfpath]; 3810 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) { 3811 priv->stats.rx_rssi_percentage[rfpath] = 3812 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + 3813 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); 3814 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1; 3815 } else { 3816 priv->stats.rx_rssi_percentage[rfpath] = 3817 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + 3818 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); 3819 } 3820 RT_TRACE(COMP_DBG, 3821 "priv->stats.rx_rssi_percentage[rfPath] = %d\n", 3822 priv->stats.rx_rssi_percentage[rfpath]); 3823 } 3824 } 3825 3826 /* Check PWDB. */ 3827 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 3828 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 3829 pprevious_stats->RxPWDBAll); 3830 3831 if (pprevious_stats->bPacketBeacon) { 3832 /* record the beacon pwdb to the sliding window. */ 3833 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) { 3834 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX; 3835 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index]; 3836 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb; 3837 } 3838 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll; 3839 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll; 3840 slide_beacon_adc_pwdb_index++; 3841 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX) 3842 slide_beacon_adc_pwdb_index = 0; 3843 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics; 3844 if (pprevious_stats->RxPWDBAll >= 3) 3845 pprevious_stats->RxPWDBAll -= 3; 3846 } 3847 3848 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 3849 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 3850 pprevious_stats->RxPWDBAll); 3851 3852 if (pprevious_stats->bPacketToSelf || 3853 pprevious_stats->bPacketBeacon || 3854 pprevious_stats->bToSelfBA) { 3855 if (priv->undecorated_smoothed_pwdb < 0) 3856 /* initialize */ 3857 priv->undecorated_smoothed_pwdb = 3858 pprevious_stats->RxPWDBAll; 3859 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) { 3860 priv->undecorated_smoothed_pwdb = 3861 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + 3862 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); 3863 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1; 3864 } else { 3865 priv->undecorated_smoothed_pwdb = 3866 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + 3867 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); 3868 } 3869 } 3870 3871 /* Check EVM */ 3872 /* record the general EVM to the sliding window. */ 3873 if (pprevious_stats->SignalQuality) { 3874 if (pprevious_stats->bPacketToSelf || 3875 pprevious_stats->bPacketBeacon || 3876 pprevious_stats->bToSelfBA) { 3877 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 3878 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX; 3879 last_evm = priv->stats.slide_evm[slide_evm_index]; 3880 priv->stats.slide_evm_total -= last_evm; 3881 } 3882 3883 priv->stats.slide_evm_total += 3884 pprevious_stats->SignalQuality; 3885 3886 priv->stats.slide_evm[slide_evm_index++] = 3887 pprevious_stats->SignalQuality; 3888 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX) 3889 slide_evm_index = 0; 3890 3891 /* <1> Showed on UI for user, in percentage. */ 3892 tmp_val = priv->stats.slide_evm_total / 3893 slide_evm_statistics; 3894 priv->stats.signal_quality = tmp_val; 3895 /* Showed on UI for user in Windows Vista, 3896 * for Link quality. 3897 */ 3898 priv->stats.last_signal_strength_inpercent = tmp_val; 3899 } 3900 3901 /* <2> Showed on UI for engineering */ 3902 if (pprevious_stats->bPacketToSelf || 3903 pprevious_stats->bPacketBeacon || 3904 pprevious_stats->bToSelfBA) { 3905 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */ 3906 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) { 3907 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */ 3908 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream]; 3909 priv->stats.rx_evm_percentage[nspatial_stream] = 3910 ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) + 3911 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR); 3912 } 3913 } 3914 } 3915 } 3916 } 3917 3918 /*----------------------------------------------------------------------------- 3919 * Function: rtl819x_query_rxpwrpercentage() 3920 * 3921 * Overview: 3922 * 3923 * Input: char antpower 3924 * 3925 * Output: NONE 3926 * 3927 * Return: 0-100 percentage 3928 *--------------------------------------------------------------------------- 3929 */ 3930 static u8 rtl819x_query_rxpwrpercentage(s8 antpower) 3931 { 3932 if ((antpower <= -100) || (antpower >= 20)) 3933 return 0; 3934 else if (antpower >= 0) 3935 return 100; 3936 else 3937 return 100 + antpower; 3938 3939 } /* QueryRxPwrPercentage */ 3940 3941 static u8 rtl819x_evm_dbtopercentage(s8 value) 3942 { 3943 s8 ret_val = clamp(-value, 0, 33) * 3; 3944 3945 if (ret_val == 99) 3946 ret_val = 100; 3947 3948 return ret_val; 3949 } 3950 3951 /* We want good-looking for signal strength/quality */ 3952 static long rtl819x_signal_scale_mapping(long currsig) 3953 { 3954 long retsig; 3955 3956 /* Step 1. Scale mapping. */ 3957 if (currsig >= 61 && currsig <= 100) 3958 retsig = 90 + ((currsig - 60) / 4); 3959 else if (currsig >= 41 && currsig <= 60) 3960 retsig = 78 + ((currsig - 40) / 2); 3961 else if (currsig >= 31 && currsig <= 40) 3962 retsig = 66 + (currsig - 30); 3963 else if (currsig >= 21 && currsig <= 30) 3964 retsig = 54 + (currsig - 20); 3965 else if (currsig >= 5 && currsig <= 20) 3966 retsig = 42 + (((currsig - 5) * 2) / 3); 3967 else if (currsig == 4) 3968 retsig = 36; 3969 else if (currsig == 3) 3970 retsig = 27; 3971 else if (currsig == 2) 3972 retsig = 18; 3973 else if (currsig == 1) 3974 retsig = 9; 3975 else 3976 retsig = currsig; 3977 3978 return retsig; 3979 } 3980 3981 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo) 3982 { 3983 if (pdrvinfo->RxHT) 3984 return false; 3985 3986 switch (pdrvinfo->RxRate) { 3987 case DESC90_RATE1M: 3988 case DESC90_RATE2M: 3989 case DESC90_RATE5_5M: 3990 case DESC90_RATE11M: 3991 return true; 3992 default: 3993 return false; 3994 } 3995 } 3996 3997 static void rtl8192_query_rxphystatus(struct r8192_priv *priv, 3998 struct ieee80211_rx_stats *pstats, 3999 struct rx_drvinfo_819x_usb *pdrvinfo, 4000 struct ieee80211_rx_stats *precord_stats, 4001 bool bpacket_match_bssid, 4002 bool bpacket_toself, 4003 bool bPacketBeacon, 4004 bool bToSelfBA) 4005 { 4006 phy_sts_ofdm_819xusb_t *pofdm_buf; 4007 phy_sts_cck_819xusb_t *pcck_buf; 4008 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc; 4009 u8 *prxpkt; 4010 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg; 4011 s8 rx_pwr[4], rx_pwr_all = 0; 4012 s8 rx_snrX, rx_evmX; 4013 u8 evm, pwdb_all; 4014 u32 RSSI, total_rssi = 0; 4015 u8 is_cck_rate = 0; 4016 u8 rf_rx_num = 0; 4017 u8 sq; 4018 4019 priv->stats.numqry_phystatus++; 4020 4021 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo); 4022 4023 /* Record it for next packet processing */ 4024 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats)); 4025 pstats->bPacketMatchBSSID = 4026 precord_stats->bPacketMatchBSSID = bpacket_match_bssid; 4027 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself; 4028 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate; 4029 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon; 4030 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA; 4031 4032 prxpkt = (u8 *)pdrvinfo; 4033 4034 /* Move pointer to the 16th bytes. Phy status start address. */ 4035 prxpkt += sizeof(struct rx_drvinfo_819x_usb); 4036 4037 /* Initial the cck and ofdm buffer pointer */ 4038 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt; 4039 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt; 4040 4041 pstats->RxMIMOSignalQuality[0] = -1; 4042 pstats->RxMIMOSignalQuality[1] = -1; 4043 precord_stats->RxMIMOSignalQuality[0] = -1; 4044 precord_stats->RxMIMOSignalQuality[1] = -1; 4045 4046 if (is_cck_rate) { 4047 /* (1)Hardware does not provide RSSI for CCK */ 4048 4049 /* (2)PWDB, Average PWDB calculated by hardware 4050 * (for rate adaptive) 4051 */ 4052 u8 report; 4053 4054 priv->stats.numqry_phystatusCCK++; 4055 4056 if (!priv->bCckHighPower) { 4057 report = pcck_buf->cck_agc_rpt & 0xc0; 4058 report >>= 6; 4059 switch (report) { 4060 case 0x3: 4061 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e); 4062 break; 4063 case 0x2: 4064 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e); 4065 break; 4066 case 0x1: 4067 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e); 4068 break; 4069 case 0x0: 4070 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e); 4071 break; 4072 } 4073 } else { 4074 report = pcck_buf->cck_agc_rpt & 0x60; 4075 report >>= 5; 4076 switch (report) { 4077 case 0x3: 4078 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4079 break; 4080 case 0x2: 4081 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4082 break; 4083 case 0x1: 4084 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4085 break; 4086 case 0x0: 4087 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4088 break; 4089 } 4090 } 4091 4092 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4093 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4094 pstats->RecvSignalPower = pwdb_all; 4095 4096 /* (3) Get Signal Quality (EVM) */ 4097 4098 if (pstats->RxPWDBAll > 40) { 4099 sq = 100; 4100 } else { 4101 sq = pcck_buf->sq_rpt; 4102 4103 if (pcck_buf->sq_rpt > 64) 4104 sq = 0; 4105 else if (pcck_buf->sq_rpt < 20) 4106 sq = 100; 4107 else 4108 sq = ((64 - sq) * 100) / 44; 4109 } 4110 pstats->SignalQuality = precord_stats->SignalQuality = sq; 4111 pstats->RxMIMOSignalQuality[0] = 4112 precord_stats->RxMIMOSignalQuality[0] = sq; 4113 pstats->RxMIMOSignalQuality[1] = 4114 precord_stats->RxMIMOSignalQuality[1] = -1; 4115 4116 } else { 4117 priv->stats.numqry_phystatusHT++; 4118 4119 /* (1)Get RSSI for HT rate */ 4120 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) { 4121 /* We will judge RF RX path now. */ 4122 if (priv->brfpath_rxenable[i]) 4123 rf_rx_num++; 4124 else 4125 continue; 4126 4127 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, i)) 4128 continue; 4129 4130 rx_pwr[i] = 4131 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106; 4132 4133 /* Get Rx snr value in DB */ 4134 tmp_rxsnr = pofdm_buf->rxsnr_X[i]; 4135 rx_snrX = (s8)(tmp_rxsnr); 4136 rx_snrX /= 2; 4137 priv->stats.rxSNRdB[i] = (long)rx_snrX; 4138 4139 /* Translate DBM to percentage. */ 4140 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]); 4141 total_rssi += RSSI; 4142 4143 /* Record Signal Strength for next packet */ 4144 pstats->RxMIMOSignalStrength[i] = (u8)RSSI; 4145 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI; 4146 } 4147 4148 /* (2)PWDB, Average PWDB calculated by hardware 4149 * (for rate adaptive) 4150 */ 4151 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106; 4152 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4153 4154 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4155 pstats->RxPower = precord_stats->RxPower = rx_pwr_all; 4156 4157 /* (3)EVM of HT rate */ 4158 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 && 4159 pdrvinfo->RxRate <= DESC90_RATEMCS15) 4160 /* both spatial stream make sense */ 4161 max_spatial_stream = 2; 4162 else 4163 /* only spatial stream 1 makes sense */ 4164 max_spatial_stream = 1; 4165 4166 for (i = 0; i < max_spatial_stream; i++) { 4167 tmp_rxevm = pofdm_buf->rxevm_X[i]; 4168 rx_evmX = (s8)(tmp_rxevm); 4169 4170 /* Do not use shift operation like "rx_evmX >>= 1" 4171 * because the compiler of free build environment will 4172 * set the most significant bit to "zero" when doing 4173 * shifting operation which may change a negative value 4174 * to positive one, then the dbm value (which is 4175 * supposed to be negative) is not correct anymore. 4176 */ 4177 rx_evmX /= 2; /* dbm */ 4178 4179 evm = rtl819x_evm_dbtopercentage(rx_evmX); 4180 if (i == 0) 4181 /* Fill value in RFD, Get the first spatial 4182 * stream only 4183 */ 4184 pstats->SignalQuality = 4185 precord_stats->SignalQuality = 4186 evm & 0xff; 4187 pstats->RxMIMOSignalQuality[i] = 4188 precord_stats->RxMIMOSignalQuality[i] = 4189 evm & 0xff; 4190 } 4191 4192 /* record rx statistics for debug */ 4193 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg; 4194 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *) 4195 &rxsc_sgien_exflg; 4196 if (pdrvinfo->BW) /* 40M channel */ 4197 priv->stats.received_bwtype[1 + prxsc->rxsc]++; 4198 else /* 20M channel */ 4199 priv->stats.received_bwtype[0]++; 4200 } 4201 4202 /* UI BSS List signal strength(in percentage), make it good looking, 4203 * from 0~100. It is assigned to the BSS List in 4204 * GetValueFromBeaconOrProbeRsp(). 4205 */ 4206 if (is_cck_rate) { 4207 pstats->SignalStrength = 4208 precord_stats->SignalStrength = 4209 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all)); 4210 } else { 4211 /* We can judge RX path number now. */ 4212 if (rf_rx_num != 0) { 4213 pstats->SignalStrength = 4214 precord_stats->SignalStrength = 4215 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num))); 4216 } 4217 } 4218 } /* QueryRxPhyStatus8190Pci */ 4219 4220 static void rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats *psrc_stats, 4221 struct ieee80211_rx_stats *ptarget_stats) 4222 { 4223 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU; 4224 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU; 4225 ptarget_stats->Seq_Num = psrc_stats->Seq_Num; 4226 } 4227 4228 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb, 4229 struct ieee80211_rx_stats *pstats, 4230 struct rx_drvinfo_819x_usb *pdrvinfo) 4231 { 4232 /* TODO: We must only check packet for current MAC address. 4233 * Not finish 4234 */ 4235 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4236 struct net_device *dev = info->dev; 4237 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4238 bool bpacket_match_bssid, bpacket_toself; 4239 bool bPacketBeacon = false, bToSelfBA = false; 4240 static struct ieee80211_rx_stats previous_stats; 4241 struct rtl_80211_hdr_3addr *hdr; 4242 u16 fc, type; 4243 4244 /* Get Signal Quality for only RX data queue (but not command queue) */ 4245 4246 u8 *tmp_buf; 4247 u8 *praddr; 4248 4249 /* Get MAC frame start address. */ 4250 tmp_buf = (u8 *)skb->data; 4251 4252 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf; 4253 fc = le16_to_cpu(hdr->frame_ctl); 4254 type = WLAN_FC_GET_TYPE(fc); 4255 praddr = hdr->addr1; 4256 4257 /* Check if the received packet is acceptable. */ 4258 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) && 4259 (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3)) 4260 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV); 4261 bpacket_toself = bpacket_match_bssid && 4262 (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr)); 4263 4264 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON) 4265 bPacketBeacon = true; 4266 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) { 4267 if ((ether_addr_equal(praddr, dev->dev_addr))) 4268 bToSelfBA = true; 4269 } 4270 4271 if (bpacket_match_bssid) 4272 priv->stats.numpacket_matchbssid++; 4273 if (bpacket_toself) 4274 priv->stats.numpacket_toself++; 4275 /* Process PHY information for previous packet (RSSI/PWDB/EVM) 4276 * Because phy information is contained in the last packet of AMPDU 4277 * only, so driver should process phy information of previous packet 4278 */ 4279 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats); 4280 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats, 4281 bpacket_match_bssid, bpacket_toself, 4282 bPacketBeacon, bToSelfBA); 4283 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats); 4284 } 4285 4286 /* 4287 * Function: UpdateReceivedRateHistogramStatistics 4288 * Overview: Record the received data rate 4289 * 4290 * Input: 4291 * struct net_device *dev 4292 * struct ieee80211_rx_stats *stats 4293 * 4294 * Output: 4295 * 4296 * (priv->stats.ReceivedRateHistogram[] is updated) 4297 * Return: 4298 * None 4299 */ 4300 static void 4301 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev, 4302 struct ieee80211_rx_stats *stats) 4303 { 4304 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4305 /* 0: Total, 1:OK, 2:CRC, 3:ICV */ 4306 u32 rcvType = 1; 4307 u32 rateIndex; 4308 /* 1: short preamble/GI, 0: long preamble/GI */ 4309 u32 preamble_guardinterval; 4310 4311 if (stats->bCRC) 4312 rcvType = 2; 4313 else if (stats->bICV) 4314 rcvType = 3; 4315 4316 if (stats->bShortPreamble) 4317 preamble_guardinterval = 1; /* short */ 4318 else 4319 preamble_guardinterval = 0; /* long */ 4320 4321 switch (stats->rate) { 4322 /* CCK rate */ 4323 case MGN_1M: 4324 rateIndex = 0; 4325 break; 4326 case MGN_2M: 4327 rateIndex = 1; 4328 break; 4329 case MGN_5_5M: 4330 rateIndex = 2; 4331 break; 4332 case MGN_11M: 4333 rateIndex = 3; 4334 break; 4335 /* Legacy OFDM rate */ 4336 case MGN_6M: 4337 rateIndex = 4; 4338 break; 4339 case MGN_9M: 4340 rateIndex = 5; 4341 break; 4342 case MGN_12M: 4343 rateIndex = 6; 4344 break; 4345 case MGN_18M: 4346 rateIndex = 7; 4347 break; 4348 case MGN_24M: 4349 rateIndex = 8; 4350 break; 4351 case MGN_36M: 4352 rateIndex = 9; 4353 break; 4354 case MGN_48M: 4355 rateIndex = 10; 4356 break; 4357 case MGN_54M: 4358 rateIndex = 11; 4359 break; 4360 /* 11n High throughput rate */ 4361 case MGN_MCS0: 4362 rateIndex = 12; 4363 break; 4364 case MGN_MCS1: 4365 rateIndex = 13; 4366 break; 4367 case MGN_MCS2: 4368 rateIndex = 14; 4369 break; 4370 case MGN_MCS3: 4371 rateIndex = 15; 4372 break; 4373 case MGN_MCS4: 4374 rateIndex = 16; 4375 break; 4376 case MGN_MCS5: 4377 rateIndex = 17; 4378 break; 4379 case MGN_MCS6: 4380 rateIndex = 18; 4381 break; 4382 case MGN_MCS7: 4383 rateIndex = 19; 4384 break; 4385 case MGN_MCS8: 4386 rateIndex = 20; 4387 break; 4388 case MGN_MCS9: 4389 rateIndex = 21; 4390 break; 4391 case MGN_MCS10: 4392 rateIndex = 22; 4393 break; 4394 case MGN_MCS11: 4395 rateIndex = 23; 4396 break; 4397 case MGN_MCS12: 4398 rateIndex = 24; 4399 break; 4400 case MGN_MCS13: 4401 rateIndex = 25; 4402 break; 4403 case MGN_MCS14: 4404 rateIndex = 26; 4405 break; 4406 case MGN_MCS15: 4407 rateIndex = 27; 4408 break; 4409 default: 4410 rateIndex = 28; 4411 break; 4412 } 4413 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++; 4414 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */ 4415 priv->stats.received_rate_histogram[rcvType][rateIndex]++; 4416 } 4417 4418 static void query_rxdesc_status(struct sk_buff *skb, 4419 struct ieee80211_rx_stats *stats, 4420 bool bIsRxAggrSubframe) 4421 { 4422 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4423 struct net_device *dev = info->dev; 4424 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4425 struct rx_drvinfo_819x_usb *driver_info = NULL; 4426 4427 /* Get Rx Descriptor Information */ 4428 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; 4429 4430 stats->Length = desc->Length; 4431 stats->RxDrvInfoSize = desc->RxDrvInfoSize; 4432 stats->RxBufShift = 0; 4433 stats->bICV = desc->ICV; 4434 stats->bCRC = desc->CRC32; 4435 stats->bHwError = stats->bCRC | stats->bICV; 4436 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */ 4437 stats->Decrypted = !desc->SWDec; 4438 4439 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) && 4440 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP)) 4441 stats->bHwError = false; 4442 else 4443 stats->bHwError = stats->bCRC | stats->bICV; 4444 4445 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE) 4446 stats->bHwError |= 1; 4447 /* Get Driver Info */ 4448 /* TODO: Need to verify it on FGPA platform 4449 * Driver info are written to the RxBuffer following rx desc 4450 */ 4451 if (stats->RxDrvInfoSize != 0) { 4452 driver_info = (struct rx_drvinfo_819x_usb *)(skb->data 4453 + sizeof(struct rx_desc_819x_usb) 4454 + stats->RxBufShift 4455 ); 4456 /* unit: 0.5M */ 4457 /* TODO */ 4458 if (!stats->bHwError) { 4459 u8 ret_rate; 4460 4461 ret_rate = HwRateToMRate90(driver_info->RxHT, 4462 driver_info->RxRate); 4463 if (ret_rate == 0xff) { 4464 /* Abnormal Case: Receive CRC OK packet with Rx 4465 * descriptor indicating non supported rate. 4466 * Special Error Handling here 4467 */ 4468 4469 stats->bHwError = 1; 4470 /* Set 1M rate by default */ 4471 stats->rate = MGN_1M; 4472 } else { 4473 stats->rate = ret_rate; 4474 } 4475 } else { 4476 stats->rate = 0x02; 4477 } 4478 4479 stats->bShortPreamble = driver_info->SPLCP; 4480 4481 UpdateReceivedRateHistogramStatistics8190(dev, stats); 4482 4483 stats->bIsAMPDU = (driver_info->PartAggr == 1); 4484 stats->bFirstMPDU = (driver_info->PartAggr == 1) && 4485 (driver_info->FirstAGGR == 1); 4486 stats->TimeStampLow = driver_info->TSFL; 4487 4488 UpdateRxPktTimeStamp8190(dev, stats); 4489 4490 /* Rx A-MPDU */ 4491 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1) 4492 RT_TRACE(COMP_RXDESC, 4493 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n", 4494 driver_info->FirstAGGR, driver_info->PartAggr); 4495 } 4496 4497 skb_pull(skb, sizeof(struct rx_desc_819x_usb)); 4498 /* Get Total offset of MPDU Frame Body */ 4499 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) { 4500 stats->bShift = 1; 4501 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize); 4502 } 4503 4504 if (driver_info) { 4505 stats->RxIs40MHzPacket = driver_info->BW; 4506 TranslateRxSignalStuff819xUsb(skb, stats, driver_info); 4507 } 4508 } 4509 4510 static void rtl8192_rx_nomal(struct sk_buff *skb) 4511 { 4512 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4513 struct net_device *dev = info->dev; 4514 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4515 struct ieee80211_rx_stats stats = { 4516 .signal = 0, 4517 .noise = 0x100 - 98, 4518 .rate = 0, 4519 .freq = IEEE80211_24GHZ_BAND, 4520 }; 4521 u32 rx_pkt_len = 0; 4522 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL; 4523 bool unicast_packet = false; 4524 4525 /* 20 is for ps-poll */ 4526 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4527 /* first packet should not contain Rx aggregation header */ 4528 query_rxdesc_status(skb, &stats, false); 4529 /* TODO */ 4530 /* hardware related info */ 4531 /* Process the MPDU received */ 4532 skb_trim(skb, skb->len - 4/*sCrcLng*/); 4533 4534 rx_pkt_len = skb->len; 4535 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data; 4536 unicast_packet = false; 4537 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) { 4538 /* TODO */ 4539 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) { 4540 /* TODO */ 4541 } else { 4542 /* unicast packet */ 4543 unicast_packet = true; 4544 } 4545 4546 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) { 4547 dev_kfree_skb_any(skb); 4548 } else { 4549 priv->stats.rxoktotal++; 4550 if (unicast_packet) 4551 priv->stats.rxbytesunicast += rx_pkt_len; 4552 } 4553 } else { 4554 priv->stats.rxurberr++; 4555 netdev_dbg(dev, "actual_length: %d\n", skb->len); 4556 dev_kfree_skb_any(skb); 4557 } 4558 } 4559 4560 static void rtl819xusb_process_received_packet(struct net_device *dev, 4561 struct ieee80211_rx_stats *pstats) 4562 { 4563 struct r8192_priv *priv = ieee80211_priv(dev); 4564 4565 /* Get shifted bytes of Starting address of 802.11 header. */ 4566 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats); 4567 #ifdef TODO /* about HCT */ 4568 if (!Adapter->bInHctTest) 4569 CountRxErrStatistics(Adapter, pRfd); 4570 #endif 4571 #ifdef ENABLE_PS /* for adding ps function in future */ 4572 RT_RF_POWER_STATE rtState; 4573 /* When RF is off, we should not count the packet for hw/sw synchronize 4574 * reason, ie. there may be a duration while sw switch is changed and 4575 * hw switch is being changed. 4576 */ 4577 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE, 4578 (u8 *)(&rtState)); 4579 if (rtState == eRfOff) 4580 return; 4581 #endif 4582 priv->stats.rxframgment++; 4583 4584 #ifdef TODO 4585 RmMonitorSignalStrength(Adapter, pRfd); 4586 #endif 4587 /* We have to release RFD and return if rx pkt is cmd pkt. */ 4588 if (rtl819xusb_rx_command_packet(dev, pstats)) 4589 return; 4590 4591 #ifdef SW_CRC_CHECK 4592 SwCrcCheck(); 4593 #endif 4594 } 4595 4596 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb, 4597 struct ieee80211_rx_stats *stats) 4598 { 4599 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; 4600 4601 /* Get Rx Descriptor Information */ 4602 stats->virtual_address = (u8 *)skb->data; 4603 stats->Length = desc->Length; 4604 stats->RxDrvInfoSize = 0; 4605 stats->RxBufShift = 0; 4606 stats->packetlength = stats->Length - scrclng; 4607 stats->fraglength = stats->packetlength; 4608 stats->fragoffset = 0; 4609 stats->ntotalfrag = 1; 4610 } 4611 4612 static void rtl8192_rx_cmd(struct sk_buff *skb) 4613 { 4614 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4615 struct net_device *dev = info->dev; 4616 /* TODO */ 4617 struct ieee80211_rx_stats stats = { 4618 .signal = 0, 4619 .noise = 0x100 - 98, 4620 .rate = 0, 4621 .freq = IEEE80211_24GHZ_BAND, 4622 }; 4623 4624 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4625 query_rx_cmdpkt_desc_status(skb, &stats); 4626 /* prfd->queue_id = 1; */ 4627 4628 /* Process the command packet received. */ 4629 4630 rtl819xusb_process_received_packet(dev, &stats); 4631 4632 dev_kfree_skb_any(skb); 4633 } 4634 } 4635 4636 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t) 4637 { 4638 struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet); 4639 struct sk_buff *skb; 4640 struct rtl8192_rx_info *info; 4641 4642 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) { 4643 info = (struct rtl8192_rx_info *)skb->cb; 4644 switch (info->out_pipe) { 4645 /* Nomal packet pipe */ 4646 case 3: 4647 priv->IrpPendingCount--; 4648 rtl8192_rx_nomal(skb); 4649 break; 4650 4651 /* Command packet pipe */ 4652 case 9: 4653 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n", 4654 info->out_pipe); 4655 4656 rtl8192_rx_cmd(skb); 4657 break; 4658 4659 default: /* should never get here! */ 4660 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n", 4661 info->out_pipe); 4662 dev_kfree_skb(skb); 4663 break; 4664 } 4665 } 4666 } 4667 4668 static const struct net_device_ops rtl8192_netdev_ops = { 4669 .ndo_open = rtl8192_open, 4670 .ndo_stop = rtl8192_close, 4671 .ndo_get_stats = rtl8192_stats, 4672 .ndo_tx_timeout = tx_timeout, 4673 .ndo_do_ioctl = rtl8192_ioctl, 4674 .ndo_set_rx_mode = r8192_set_multicast, 4675 .ndo_set_mac_address = r8192_set_mac_adr, 4676 .ndo_validate_addr = eth_validate_addr, 4677 .ndo_start_xmit = ieee80211_xmit, 4678 }; 4679 4680 /**************************************************************************** 4681 * ---------------------------- USB_STUFF--------------------------- 4682 *****************************************************************************/ 4683 4684 static int rtl8192_usb_probe(struct usb_interface *intf, 4685 const struct usb_device_id *id) 4686 { 4687 struct net_device *dev = NULL; 4688 struct r8192_priv *priv = NULL; 4689 struct usb_device *udev = interface_to_usbdev(intf); 4690 int ret; 4691 4692 RT_TRACE(COMP_INIT, "Oops: i'm coming\n"); 4693 4694 dev = alloc_ieee80211(sizeof(struct r8192_priv)); 4695 if (!dev) 4696 return -ENOMEM; 4697 4698 usb_set_intfdata(intf, dev); 4699 SET_NETDEV_DEV(dev, &intf->dev); 4700 priv = ieee80211_priv(dev); 4701 priv->ieee80211 = netdev_priv(dev); 4702 priv->udev = udev; 4703 4704 dev->netdev_ops = &rtl8192_netdev_ops; 4705 4706 dev->wireless_handlers = &r8192_wx_handlers_def; 4707 4708 dev->type = ARPHRD_ETHER; 4709 4710 dev->watchdog_timeo = HZ * 3; 4711 4712 if (dev_alloc_name(dev, ifname) < 0) { 4713 RT_TRACE(COMP_INIT, 4714 "Oops: devname already taken! Trying wlan%%d...\n"); 4715 ifname = "wlan%d"; 4716 dev_alloc_name(dev, ifname); 4717 } 4718 4719 RT_TRACE(COMP_INIT, "Driver probe completed1\n"); 4720 if (rtl8192_init(dev) != 0) { 4721 RT_TRACE(COMP_ERR, "Initialization failed"); 4722 ret = -ENODEV; 4723 goto fail; 4724 } 4725 netif_carrier_off(dev); 4726 netif_stop_queue(dev); 4727 4728 ret = register_netdev(dev); 4729 if (ret) 4730 goto fail2; 4731 4732 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name); 4733 rtl8192_proc_init_one(dev); 4734 4735 RT_TRACE(COMP_INIT, "Driver probe completed\n"); 4736 return 0; 4737 4738 fail2: 4739 rtl8192_down(dev); 4740 fail: 4741 kfree(priv->pFirmware); 4742 priv->pFirmware = NULL; 4743 rtl8192_usb_deleteendpoints(dev); 4744 msleep(10); 4745 free_ieee80211(dev); 4746 4747 RT_TRACE(COMP_ERR, "wlan driver load failed\n"); 4748 return ret; 4749 } 4750 4751 /* detach all the work and timer structure declared or inititialize 4752 * in r8192U_init function. 4753 */ 4754 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv) 4755 { 4756 cancel_work_sync(&priv->reset_wq); 4757 cancel_delayed_work(&priv->watch_dog_wq); 4758 cancel_delayed_work(&priv->update_beacon_wq); 4759 cancel_work_sync(&priv->qos_activate); 4760 } 4761 4762 static void rtl8192_usb_disconnect(struct usb_interface *intf) 4763 { 4764 struct net_device *dev = usb_get_intfdata(intf); 4765 struct r8192_priv *priv = ieee80211_priv(dev); 4766 4767 unregister_netdev(dev); 4768 4769 RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n"); 4770 rtl8192_proc_remove_one(dev); 4771 4772 rtl8192_down(dev); 4773 kfree(priv->pFirmware); 4774 priv->pFirmware = NULL; 4775 rtl8192_usb_deleteendpoints(dev); 4776 usleep_range(10000, 11000); 4777 free_ieee80211(dev); 4778 4779 RT_TRACE(COMP_DOWN, "wlan driver removed\n"); 4780 } 4781 4782 static int __init rtl8192_usb_module_init(void) 4783 { 4784 int ret; 4785 4786 #ifdef CONFIG_IEEE80211_DEBUG 4787 ret = ieee80211_debug_init(); 4788 if (ret) { 4789 pr_err("ieee80211_debug_init() failed %d\n", ret); 4790 return ret; 4791 } 4792 #endif 4793 ret = ieee80211_crypto_init(); 4794 if (ret) { 4795 pr_err("ieee80211_crypto_init() failed %d\n", ret); 4796 return ret; 4797 } 4798 4799 ret = ieee80211_crypto_tkip_init(); 4800 if (ret) { 4801 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret); 4802 return ret; 4803 } 4804 4805 ret = ieee80211_crypto_ccmp_init(); 4806 if (ret) { 4807 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret); 4808 return ret; 4809 } 4810 4811 ret = ieee80211_crypto_wep_init(); 4812 if (ret) { 4813 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret); 4814 return ret; 4815 } 4816 4817 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n"); 4818 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n"); 4819 RT_TRACE(COMP_INIT, "Initializing module"); 4820 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT); 4821 rtl8192_proc_module_init(); 4822 return usb_register(&rtl8192_usb_driver); 4823 } 4824 4825 static void __exit rtl8192_usb_module_exit(void) 4826 { 4827 usb_deregister(&rtl8192_usb_driver); 4828 4829 RT_TRACE(COMP_DOWN, "Exiting"); 4830 } 4831 4832 void EnableHWSecurityConfig8192(struct net_device *dev) 4833 { 4834 u8 SECR_value = 0x0; 4835 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4836 struct ieee80211_device *ieee = priv->ieee80211; 4837 4838 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable; 4839 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) { 4840 SECR_value |= SCR_RxUseDK; 4841 SECR_value |= SCR_TxUseDK; 4842 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) { 4843 SECR_value |= SCR_RxUseDK; 4844 SECR_value |= SCR_TxUseDK; 4845 } 4846 /* add HWSec active enable here. 4847 * default using hwsec. when peer AP is in N mode only and 4848 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates 4849 * it), use software security. when peer AP is in b,g,n mode mixed and 4850 * pairwise_key_type is none_aes, use g mode hw security. 4851 */ 4852 4853 ieee->hwsec_active = 1; 4854 4855 /* add hwsec_support flag to totol control hw_sec on/off */ 4856 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) { 4857 ieee->hwsec_active = 0; 4858 SECR_value &= ~SCR_RxDecEnable; 4859 } 4860 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n", 4861 __func__, ieee->hwsec_active, ieee->pairwise_key_type, 4862 SECR_value); 4863 write_nic_byte(dev, SECR, SECR_value); 4864 } 4865 4866 void setKey(struct net_device *dev, u8 entryno, u8 keyindex, u16 keytype, 4867 const u8 *macaddr, u8 defaultkey, u32 *keycontent) 4868 { 4869 u32 target_command = 0; 4870 u32 target_content = 0; 4871 u16 us_config = 0; 4872 u8 i; 4873 4874 if (entryno >= TOTAL_CAM_ENTRY) 4875 RT_TRACE(COMP_ERR, "cam entry exceeds in %s\n", __func__); 4876 4877 RT_TRACE(COMP_SEC, 4878 "====>to %s, dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n", 4879 __func__, dev, entryno, keyindex, keytype, macaddr); 4880 4881 if (defaultkey) 4882 us_config |= BIT(15) | (keytype << 2); 4883 else 4884 us_config |= BIT(15) | (keytype << 2) | keyindex; 4885 4886 for (i = 0; i < CAM_CONTENT_COUNT; i++) { 4887 target_command = i + CAM_CONTENT_COUNT * entryno; 4888 target_command |= BIT(31) | BIT(16); 4889 4890 if (i == 0) { /* MAC|Config */ 4891 target_content = (u32)(*(macaddr + 0)) << 16 | 4892 (u32)(*(macaddr + 1)) << 24 | 4893 (u32)us_config; 4894 4895 write_nic_dword(dev, WCAMI, target_content); 4896 write_nic_dword(dev, RWCAM, target_command); 4897 } else if (i == 1) { /* MAC */ 4898 target_content = (u32)(*(macaddr + 2)) | 4899 (u32)(*(macaddr + 3)) << 8 | 4900 (u32)(*(macaddr + 4)) << 16 | 4901 (u32)(*(macaddr + 5)) << 24; 4902 write_nic_dword(dev, WCAMI, target_content); 4903 write_nic_dword(dev, RWCAM, target_command); 4904 } else { 4905 /* Key Material */ 4906 if (keycontent) { 4907 write_nic_dword(dev, WCAMI, 4908 *(keycontent + i - 2)); 4909 write_nic_dword(dev, RWCAM, target_command); 4910 } 4911 } 4912 } 4913 } 4914 4915 /*************************************************************************** 4916 * ------------------- module init / exit stubs ---------------- 4917 ****************************************************************************/ 4918 module_init(rtl8192_usb_module_init); 4919 module_exit(rtl8192_usb_module_exit); 4920