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 static int channels = 0x3fff; 100 101 module_param(ifname, charp, 0644); 102 module_param(hwwep, int, 0644); 103 module_param(channels, int, 0644); 104 105 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); 106 MODULE_PARM_DESC(hwwep, " Try to use hardware security support. "); 107 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI"); 108 109 static int rtl8192_usb_probe(struct usb_interface *intf, 110 const struct usb_device_id *id); 111 static void rtl8192_usb_disconnect(struct usb_interface *intf); 112 113 static struct usb_driver rtl8192_usb_driver = { 114 .name = RTL819XU_MODULE_NAME, /* Driver name */ 115 .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */ 116 .probe = rtl8192_usb_probe, /* probe fn */ 117 .disconnect = rtl8192_usb_disconnect, /* remove fn */ 118 .suspend = NULL, /* PM suspend fn */ 119 .resume = NULL, /* PM resume fn */ 120 }; 121 122 struct CHANNEL_LIST { 123 u8 Channel[32]; 124 u8 Len; 125 }; 126 127 static struct CHANNEL_LIST ChannelPlan[] = { 128 /* FCC */ 129 {{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}, 130 /* IC */ 131 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11}, 132 /* ETSI */ 133 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21}, 134 /* Spain. Change to ETSI. */ 135 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, 136 /* France. Change to ETSI. */ 137 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, 138 /* MKK */ 139 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 140 /* MKK1 */ 141 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 142 /* Israel. */ 143 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, 144 /* For 11a , TELEC */ 145 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 146 /* MIC */ 147 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, 148 /* For Global Domain. 1-11:active scan, 12-14 passive scan. */ 149 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14} 150 }; 151 152 static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv) 153 { 154 int i, max_chan = -1, min_chan = -1; 155 struct ieee80211_device *ieee = priv->ieee80211; 156 157 switch (channel_plan) { 158 case COUNTRY_CODE_FCC: 159 case COUNTRY_CODE_IC: 160 case COUNTRY_CODE_ETSI: 161 case COUNTRY_CODE_SPAIN: 162 case COUNTRY_CODE_FRANCE: 163 case COUNTRY_CODE_MKK: 164 case COUNTRY_CODE_MKK1: 165 case COUNTRY_CODE_ISRAEL: 166 case COUNTRY_CODE_TELEC: 167 case COUNTRY_CODE_MIC: 168 rtl8192u_dot11d_init(ieee); 169 ieee->bGlobalDomain = false; 170 /* actually 8225 & 8256 rf chips only support B,G,24N mode */ 171 if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) { 172 min_chan = 1; 173 max_chan = 14; 174 } else { 175 RT_TRACE(COMP_ERR, 176 "unknown rf chip, can't set channel map in function:%s()\n", 177 __func__); 178 } 179 if (ChannelPlan[channel_plan].Len != 0) { 180 /* Clear old channel map */ 181 memset(GET_DOT11D_INFO(ieee)->channel_map, 0, 182 sizeof(GET_DOT11D_INFO(ieee)->channel_map)); 183 /* Set new channel map */ 184 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) { 185 if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan) 186 break; 187 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1; 188 } 189 } 190 break; 191 192 case COUNTRY_CODE_GLOBAL_DOMAIN: 193 /* this flag enabled to follow 11d country IE setting, 194 * otherwise, it shall follow global domain settings. 195 */ 196 GET_DOT11D_INFO(ieee)->dot11d_enabled = 0; 197 dot11d_reset(ieee); 198 ieee->bGlobalDomain = true; 199 break; 200 201 default: 202 break; 203 } 204 } 205 206 static void CamResetAllEntry(struct net_device *dev) 207 { 208 u32 ulcommand = 0; 209 /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA 210 * associate to AP. However, ResetKey is called on 211 * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this 212 * condition, Cam can not be reset because upper layer will not set 213 * this static key again. 214 */ 215 ulcommand |= BIT(31) | BIT(30); 216 write_nic_dword(dev, RWCAM, ulcommand); 217 } 218 219 int write_nic_byte_E(struct net_device *dev, int indx, u8 data) 220 { 221 int status; 222 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 223 struct usb_device *udev = priv->udev; 224 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 225 226 if (!usbdata) 227 return -ENOMEM; 228 *usbdata = data; 229 230 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 231 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 232 indx | 0xfe00, 0, usbdata, 1, HZ / 2); 233 kfree(usbdata); 234 235 if (status < 0) { 236 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 237 return status; 238 } 239 return 0; 240 } 241 242 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data) 243 { 244 int status; 245 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 246 struct usb_device *udev = priv->udev; 247 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); 248 249 if (!usbdata) 250 return -ENOMEM; 251 252 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 253 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 254 indx | 0xfe00, 0, usbdata, 1, HZ / 2); 255 *data = *usbdata; 256 kfree(usbdata); 257 258 if (status < 0) { 259 netdev_err(dev, "%s failure status: %d\n", __func__, status); 260 return status; 261 } 262 263 return 0; 264 } 265 266 /* as 92U has extend page from 4 to 16, so modify functions below. */ 267 int write_nic_byte(struct net_device *dev, int indx, u8 data) 268 { 269 int status; 270 271 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 272 struct usb_device *udev = priv->udev; 273 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 274 275 if (!usbdata) 276 return -ENOMEM; 277 *usbdata = data; 278 279 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 280 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 281 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 282 usbdata, 1, HZ / 2); 283 kfree(usbdata); 284 285 if (status < 0) { 286 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 287 return status; 288 } 289 290 return 0; 291 } 292 293 int write_nic_word(struct net_device *dev, int indx, u16 data) 294 { 295 int status; 296 297 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 298 struct usb_device *udev = priv->udev; 299 u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 300 301 if (!usbdata) 302 return -ENOMEM; 303 *usbdata = data; 304 305 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 306 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 307 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 308 usbdata, 2, HZ / 2); 309 kfree(usbdata); 310 311 if (status < 0) { 312 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 313 return status; 314 } 315 316 return 0; 317 } 318 319 int write_nic_dword(struct net_device *dev, int indx, u32 data) 320 { 321 int status; 322 323 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 324 struct usb_device *udev = priv->udev; 325 u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); 326 327 if (!usbdata) 328 return -ENOMEM; 329 *usbdata = data; 330 331 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 332 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, 333 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 334 usbdata, 4, HZ / 2); 335 kfree(usbdata); 336 337 if (status < 0) { 338 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); 339 return status; 340 } 341 342 return 0; 343 } 344 345 int read_nic_byte(struct net_device *dev, int indx, u8 *data) 346 { 347 int status; 348 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 349 struct usb_device *udev = priv->udev; 350 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); 351 352 if (!usbdata) 353 return -ENOMEM; 354 355 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 356 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 357 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 358 usbdata, 1, HZ / 2); 359 *data = *usbdata; 360 kfree(usbdata); 361 362 if (status < 0) { 363 netdev_err(dev, "%s failure status: %d\n", __func__, status); 364 return status; 365 } 366 367 return 0; 368 } 369 370 int read_nic_word(struct net_device *dev, int indx, u16 *data) 371 { 372 int status; 373 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 374 struct usb_device *udev = priv->udev; 375 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); 376 377 if (!usbdata) 378 return -ENOMEM; 379 380 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 381 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 382 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 383 usbdata, 2, HZ / 2); 384 *data = *usbdata; 385 kfree(usbdata); 386 387 if (status < 0) { 388 netdev_err(dev, "%s failure status: %d\n", __func__, status); 389 return status; 390 } 391 392 return 0; 393 } 394 395 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data) 396 { 397 int status; 398 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 399 struct usb_device *udev = priv->udev; 400 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); 401 402 if (!usbdata) 403 return -ENOMEM; 404 405 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 406 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 407 indx | 0xfe00, 0, usbdata, 2, HZ / 2); 408 *data = *usbdata; 409 kfree(usbdata); 410 411 if (status < 0) { 412 netdev_err(dev, "%s failure status: %d\n", __func__, status); 413 return status; 414 } 415 416 return 0; 417 } 418 419 int read_nic_dword(struct net_device *dev, int indx, u32 *data) 420 { 421 int status; 422 423 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 424 struct usb_device *udev = priv->udev; 425 u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL); 426 427 if (!usbdata) 428 return -ENOMEM; 429 430 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 431 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, 432 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, 433 usbdata, 4, HZ / 2); 434 *data = *usbdata; 435 kfree(usbdata); 436 437 if (status < 0) { 438 netdev_err(dev, "%s failure status: %d\n", __func__, status); 439 return status; 440 } 441 442 return 0; 443 } 444 445 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */ 446 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */ 447 /* this might still called in what was the PHY rtl8185/rtl8192 common code 448 * plans are to possibility turn it again in one common code... 449 */ 450 inline void force_pci_posting(struct net_device *dev) 451 { 452 } 453 454 static struct net_device_stats *rtl8192_stats(struct net_device *dev); 455 static void rtl8192_restart(struct work_struct *work); 456 static void watch_dog_timer_callback(struct timer_list *t); 457 458 /**************************************************************************** 459 * -----------------------------PROCFS STUFF------------------------- 460 ****************************************************************************/ 461 462 static struct proc_dir_entry *rtl8192_proc; 463 464 static int __maybe_unused proc_get_stats_ap(struct seq_file *m, void *v) 465 { 466 struct net_device *dev = m->private; 467 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 468 struct ieee80211_device *ieee = priv->ieee80211; 469 struct ieee80211_network *target; 470 471 list_for_each_entry(target, &ieee->network_list, list) { 472 const char *wpa = "non_WPA"; 473 474 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0) 475 wpa = "WPA"; 476 477 seq_printf(m, "%s %s\n", target->ssid, wpa); 478 } 479 480 return 0; 481 } 482 483 static int __maybe_unused proc_get_registers(struct seq_file *m, void *v) 484 { 485 struct net_device *dev = m->private; 486 int i, n, max = 0xff; 487 u8 byte_rd; 488 489 seq_puts(m, "\n####################page 0##################\n "); 490 491 for (n = 0; n <= max;) { 492 seq_printf(m, "\nD: %2x > ", n); 493 494 for (i = 0; i < 16 && n <= max; i++, n++) { 495 read_nic_byte(dev, 0x000 | n, &byte_rd); 496 seq_printf(m, "%2x ", byte_rd); 497 } 498 } 499 500 seq_puts(m, "\n####################page 1##################\n "); 501 for (n = 0; n <= max;) { 502 seq_printf(m, "\nD: %2x > ", n); 503 504 for (i = 0; i < 16 && n <= max; i++, n++) { 505 read_nic_byte(dev, 0x100 | n, &byte_rd); 506 seq_printf(m, "%2x ", byte_rd); 507 } 508 } 509 510 seq_puts(m, "\n####################page 3##################\n "); 511 for (n = 0; n <= max;) { 512 seq_printf(m, "\nD: %2x > ", n); 513 514 for (i = 0; i < 16 && n <= max; i++, n++) { 515 read_nic_byte(dev, 0x300 | n, &byte_rd); 516 seq_printf(m, "%2x ", byte_rd); 517 } 518 } 519 520 seq_putc(m, '\n'); 521 return 0; 522 } 523 524 static int __maybe_unused proc_get_stats_tx(struct seq_file *m, void *v) 525 { 526 struct net_device *dev = m->private; 527 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 528 529 seq_printf(m, 530 "TX VI priority ok int: %lu\n" 531 "TX VI priority error int: %lu\n" 532 "TX VO priority ok int: %lu\n" 533 "TX VO priority error int: %lu\n" 534 "TX BE priority ok int: %lu\n" 535 "TX BE priority error int: %lu\n" 536 "TX BK priority ok int: %lu\n" 537 "TX BK priority error int: %lu\n" 538 "TX MANAGE priority ok int: %lu\n" 539 "TX MANAGE priority error int: %lu\n" 540 "TX BEACON priority ok int: %lu\n" 541 "TX BEACON priority error int: %lu\n" 542 "TX queue resume: %lu\n" 543 "TX queue stopped?: %d\n" 544 "TX fifo overflow: %lu\n" 545 "TX VI queue: %d\n" 546 "TX VO queue: %d\n" 547 "TX BE queue: %d\n" 548 "TX BK queue: %d\n" 549 "TX VI dropped: %lu\n" 550 "TX VO dropped: %lu\n" 551 "TX BE dropped: %lu\n" 552 "TX BK dropped: %lu\n" 553 "TX total data packets %lu\n", 554 priv->stats.txviokint, 555 priv->stats.txvierr, 556 priv->stats.txvookint, 557 priv->stats.txvoerr, 558 priv->stats.txbeokint, 559 priv->stats.txbeerr, 560 priv->stats.txbkokint, 561 priv->stats.txbkerr, 562 priv->stats.txmanageokint, 563 priv->stats.txmanageerr, 564 priv->stats.txbeaconokint, 565 priv->stats.txbeaconerr, 566 priv->stats.txresumed, 567 netif_queue_stopped(dev), 568 priv->stats.txoverflow, 569 atomic_read(&(priv->tx_pending[VI_PRIORITY])), 570 atomic_read(&(priv->tx_pending[VO_PRIORITY])), 571 atomic_read(&(priv->tx_pending[BE_PRIORITY])), 572 atomic_read(&(priv->tx_pending[BK_PRIORITY])), 573 priv->stats.txvidrop, 574 priv->stats.txvodrop, 575 priv->stats.txbedrop, 576 priv->stats.txbkdrop, 577 priv->stats.txdatapkt 578 ); 579 580 return 0; 581 } 582 583 static int __maybe_unused proc_get_stats_rx(struct seq_file *m, void *v) 584 { 585 struct net_device *dev = m->private; 586 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 587 588 seq_printf(m, 589 "RX packets: %lu\n" 590 "RX urb status error: %lu\n" 591 "RX invalid urb error: %lu\n", 592 priv->stats.rxoktotal, 593 priv->stats.rxstaterr, 594 priv->stats.rxurberr); 595 596 return 0; 597 } 598 599 static void rtl8192_proc_module_init(void) 600 { 601 RT_TRACE(COMP_INIT, "Initializing proc filesystem"); 602 rtl8192_proc = proc_mkdir(RTL819XU_MODULE_NAME, init_net.proc_net); 603 } 604 605 static void rtl8192_proc_init_one(struct net_device *dev) 606 { 607 struct proc_dir_entry *dir; 608 609 if (!rtl8192_proc) 610 return; 611 612 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); 613 if (!dir) 614 return; 615 616 proc_create_single("stats-rx", S_IFREG | 0444, dir, 617 proc_get_stats_rx); 618 proc_create_single("stats-tx", S_IFREG | 0444, dir, 619 proc_get_stats_tx); 620 proc_create_single("stats-ap", S_IFREG | 0444, dir, 621 proc_get_stats_ap); 622 proc_create_single("registers", S_IFREG | 0444, dir, 623 proc_get_registers); 624 } 625 626 static void rtl8192_proc_remove_one(struct net_device *dev) 627 { 628 remove_proc_subtree(dev->name, rtl8192_proc); 629 } 630 631 /**************************************************************************** 632 * -----------------------------MISC STUFF------------------------- 633 *****************************************************************************/ 634 635 short check_nic_enough_desc(struct net_device *dev, int queue_index) 636 { 637 struct r8192_priv *priv = ieee80211_priv(dev); 638 int used = atomic_read(&priv->tx_pending[queue_index]); 639 640 return (used < MAX_TX_URB); 641 } 642 643 static void tx_timeout(struct net_device *dev, unsigned int txqueue) 644 { 645 struct r8192_priv *priv = ieee80211_priv(dev); 646 647 schedule_work(&priv->reset_wq); 648 } 649 650 void rtl8192_update_msr(struct net_device *dev) 651 { 652 struct r8192_priv *priv = ieee80211_priv(dev); 653 u8 msr; 654 655 read_nic_byte(dev, MSR, &msr); 656 msr &= ~MSR_LINK_MASK; 657 658 /* do not change in link_state != WLAN_LINK_ASSOCIATED. 659 * msr must be updated if the state is ASSOCIATING. 660 * this is intentional and make sense for ad-hoc and 661 * master (see the create BSS/IBSS func) 662 */ 663 if (priv->ieee80211->state == IEEE80211_LINKED) { 664 if (priv->ieee80211->iw_mode == IW_MODE_INFRA) 665 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT); 666 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 667 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT); 668 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER) 669 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT); 670 671 } else { 672 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT); 673 } 674 675 write_nic_byte(dev, MSR, msr); 676 } 677 678 void rtl8192_set_chan(struct net_device *dev, short ch) 679 { 680 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 681 682 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch); 683 priv->chan = ch; 684 685 /* this hack should avoid frame TX during channel setting*/ 686 687 /* need to implement rf set channel here */ 688 689 if (priv->rf_set_chan) 690 priv->rf_set_chan(dev, priv->chan); 691 mdelay(10); 692 } 693 694 static void rtl8192_rx_isr(struct urb *urb); 695 696 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats) 697 { 698 return (sizeof(struct rx_desc_819x_usb) + pstats->RxDrvInfoSize 699 + pstats->RxBufShift); 700 } 701 702 void rtl8192_rx_enable(struct net_device *dev) 703 { 704 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 705 struct urb *entry; 706 struct sk_buff *skb; 707 struct rtl8192_rx_info *info; 708 709 /* nomal packet rx procedure */ 710 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) { 711 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); 712 if (!skb) 713 break; 714 entry = usb_alloc_urb(0, GFP_KERNEL); 715 if (!entry) { 716 kfree_skb(skb); 717 break; 718 } 719 usb_fill_bulk_urb(entry, priv->udev, 720 usb_rcvbulkpipe(priv->udev, 3), 721 skb_tail_pointer(skb), 722 RX_URB_SIZE, rtl8192_rx_isr, skb); 723 info = (struct rtl8192_rx_info *)skb->cb; 724 info->urb = entry; 725 info->dev = dev; 726 info->out_pipe = 3; /* denote rx normal packet queue */ 727 skb_queue_tail(&priv->rx_queue, skb); 728 usb_submit_urb(entry, GFP_KERNEL); 729 } 730 731 /* command packet rx procedure */ 732 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) { 733 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); 734 if (!skb) 735 break; 736 entry = usb_alloc_urb(0, GFP_KERNEL); 737 if (!entry) { 738 kfree_skb(skb); 739 break; 740 } 741 usb_fill_bulk_urb(entry, priv->udev, 742 usb_rcvbulkpipe(priv->udev, 9), 743 skb_tail_pointer(skb), 744 RX_URB_SIZE, rtl8192_rx_isr, skb); 745 info = (struct rtl8192_rx_info *)skb->cb; 746 info->urb = entry; 747 info->dev = dev; 748 info->out_pipe = 9; /* denote rx cmd packet queue */ 749 skb_queue_tail(&priv->rx_queue, skb); 750 usb_submit_urb(entry, GFP_KERNEL); 751 } 752 } 753 754 void rtl8192_set_rxconf(struct net_device *dev) 755 { 756 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 757 u32 rxconf; 758 759 read_nic_dword(dev, RCR, &rxconf); 760 rxconf = rxconf & ~MAC_FILTER_MASK; 761 rxconf = rxconf | RCR_AMF; 762 rxconf = rxconf | RCR_ADF; 763 rxconf = rxconf | RCR_AB; 764 rxconf = rxconf | RCR_AM; 765 766 if (dev->flags & IFF_PROMISC) 767 DMESG("NIC in promisc mode"); 768 769 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR || 770 dev->flags & IFF_PROMISC) { 771 rxconf = rxconf | RCR_AAP; 772 } else { 773 rxconf = rxconf | RCR_APM; 774 rxconf = rxconf | RCR_CBSSID; 775 } 776 777 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) { 778 rxconf = rxconf | RCR_AICV; 779 rxconf = rxconf | RCR_APWRMGT; 780 } 781 782 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR) 783 rxconf = rxconf | RCR_ACRC32; 784 785 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK; 786 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT); 787 rxconf = rxconf & ~MAX_RX_DMA_MASK; 788 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET); 789 790 rxconf = rxconf | RCR_ONLYERLPKT; 791 792 write_nic_dword(dev, RCR, rxconf); 793 } 794 795 void rtl8192_rtx_disable(struct net_device *dev) 796 { 797 u8 cmd; 798 struct r8192_priv *priv = ieee80211_priv(dev); 799 struct sk_buff *skb; 800 struct rtl8192_rx_info *info; 801 802 read_nic_byte(dev, CMDR, &cmd); 803 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE)); 804 force_pci_posting(dev); 805 mdelay(10); 806 807 while ((skb = __skb_dequeue(&priv->rx_queue))) { 808 info = (struct rtl8192_rx_info *)skb->cb; 809 if (!info->urb) 810 continue; 811 812 usb_kill_urb(info->urb); 813 kfree_skb(skb); 814 } 815 816 if (skb_queue_len(&priv->skb_queue)) 817 netdev_warn(dev, "skb_queue not empty\n"); 818 819 skb_queue_purge(&priv->skb_queue); 820 } 821 822 /* The prototype of rx_isr has changed since one version of Linux Kernel */ 823 static void rtl8192_rx_isr(struct urb *urb) 824 { 825 struct sk_buff *skb = (struct sk_buff *)urb->context; 826 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 827 struct net_device *dev = info->dev; 828 struct r8192_priv *priv = ieee80211_priv(dev); 829 int out_pipe = info->out_pipe; 830 int err; 831 832 if (!priv->up) 833 return; 834 835 if (unlikely(urb->status)) { 836 info->urb = NULL; 837 priv->stats.rxstaterr++; 838 priv->ieee80211->stats.rx_errors++; 839 usb_free_urb(urb); 840 return; 841 } 842 skb_unlink(skb, &priv->rx_queue); 843 skb_put(skb, urb->actual_length); 844 845 skb_queue_tail(&priv->skb_queue, skb); 846 tasklet_schedule(&priv->irq_rx_tasklet); 847 848 skb = dev_alloc_skb(RX_URB_SIZE); 849 if (unlikely(!skb)) { 850 usb_free_urb(urb); 851 netdev_err(dev, "%s(): can't alloc skb\n", __func__); 852 /* TODO check rx queue length and refill *somewhere* */ 853 return; 854 } 855 856 usb_fill_bulk_urb(urb, priv->udev, 857 usb_rcvbulkpipe(priv->udev, out_pipe), 858 skb_tail_pointer(skb), 859 RX_URB_SIZE, rtl8192_rx_isr, skb); 860 861 info = (struct rtl8192_rx_info *)skb->cb; 862 info->urb = urb; 863 info->dev = dev; 864 info->out_pipe = out_pipe; 865 866 urb->transfer_buffer = skb_tail_pointer(skb); 867 urb->context = skb; 868 skb_queue_tail(&priv->rx_queue, skb); 869 err = usb_submit_urb(urb, GFP_ATOMIC); 870 if (err && err != -EPERM) 871 netdev_err(dev, 872 "can not submit rxurb, err is %x, URB status is %x\n", 873 err, urb->status); 874 } 875 876 static u32 rtl819xusb_rx_command_packet(struct net_device *dev, 877 struct ieee80211_rx_stats *pstats) 878 { 879 u32 status; 880 881 status = cmpk_message_handle_rx(dev, pstats); 882 if (status) 883 DMESG("rxcommandpackethandle819xusb: It is a command packet\n"); 884 885 return status; 886 } 887 888 static void rtl8192_data_hard_stop(struct net_device *dev) 889 { 890 /* FIXME !! */ 891 } 892 893 static void rtl8192_data_hard_resume(struct net_device *dev) 894 { 895 /* FIXME !! */ 896 } 897 898 /* this function TX data frames when the ieee80211 stack requires this. 899 * It checks also if we need to stop the ieee tx queue, eventually do it 900 */ 901 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev, 902 int rate) 903 { 904 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 905 unsigned long flags; 906 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 907 u8 queue_index = tcb_desc->queue_index; 908 909 /* shall not be referred by command packet */ 910 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE); 911 912 spin_lock_irqsave(&priv->tx_lock, flags); 913 914 *(struct net_device **)(skb->cb) = dev; 915 tcb_desc->bTxEnableFwCalcDur = 1; 916 skb_push(skb, priv->ieee80211->tx_headroom); 917 rtl8192_tx(dev, skb); 918 919 spin_unlock_irqrestore(&priv->tx_lock, flags); 920 } 921 922 /* This is a rough attempt to TX a frame 923 * This is called by the ieee 80211 stack to TX management frames. 924 * If the ring is full packet are dropped (for data frame the queue 925 * is stopped before this can happen). 926 */ 927 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 928 { 929 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 930 int ret; 931 unsigned long flags; 932 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 933 u8 queue_index = tcb_desc->queue_index; 934 935 spin_lock_irqsave(&priv->tx_lock, flags); 936 937 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev)); 938 if (queue_index == TXCMD_QUEUE) { 939 skb_push(skb, USB_HWDESC_HEADER_LEN); 940 rtl819xU_tx_cmd(dev, skb); 941 ret = 1; 942 } else { 943 skb_push(skb, priv->ieee80211->tx_headroom); 944 ret = rtl8192_tx(dev, skb); 945 } 946 947 spin_unlock_irqrestore(&priv->tx_lock, flags); 948 949 return ret; 950 } 951 952 static void rtl8192_tx_isr(struct urb *tx_urb) 953 { 954 struct sk_buff *skb = (struct sk_buff *)tx_urb->context; 955 struct net_device *dev; 956 struct r8192_priv *priv = NULL; 957 struct cb_desc *tcb_desc; 958 u8 queue_index; 959 960 if (!skb) 961 return; 962 963 dev = *(struct net_device **)(skb->cb); 964 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 965 queue_index = tcb_desc->queue_index; 966 967 priv = ieee80211_priv(dev); 968 969 if (tcb_desc->queue_index != TXCMD_QUEUE) { 970 if (tx_urb->status == 0) { 971 netif_trans_update(dev); 972 priv->stats.txoktotal++; 973 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++; 974 priv->stats.txbytesunicast += 975 (skb->len - priv->ieee80211->tx_headroom); 976 } else { 977 priv->ieee80211->stats.tx_errors++; 978 /* TODO */ 979 } 980 } 981 982 /* free skb and tx_urb */ 983 dev_kfree_skb_any(skb); 984 usb_free_urb(tx_urb); 985 atomic_dec(&priv->tx_pending[queue_index]); 986 987 /* 988 * Handle HW Beacon: 989 * We had transfer our beacon frame to host controller at this moment. 990 * 991 * 992 * Caution: 993 * Handling the wait queue of command packets. 994 * For Tx command packets, we must not do TCB fragment because it is 995 * not handled right now. We must cut the packets to match the size of 996 * TX_CMD_PKT before we send it. 997 */ 998 999 /* Handle MPDU in wait queue. */ 1000 if (queue_index != BEACON_QUEUE) { 1001 /* Don't send data frame during scanning.*/ 1002 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) && 1003 (!(priv->ieee80211->queue_stop))) { 1004 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index])); 1005 if (skb) 1006 priv->ieee80211->softmac_hard_start_xmit(skb, 1007 dev); 1008 1009 return; /* avoid further processing AMSDU */ 1010 } 1011 } 1012 } 1013 1014 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config) 1015 { 1016 struct r8192_priv *priv = ieee80211_priv(dev); 1017 struct ieee80211_network *net; 1018 u8 i = 0, basic_rate = 0; 1019 1020 net = &priv->ieee80211->current_network; 1021 1022 for (i = 0; i < net->rates_len; i++) { 1023 basic_rate = net->rates[i] & 0x7f; 1024 switch (basic_rate) { 1025 case MGN_1M: 1026 *rate_config |= RRSR_1M; 1027 break; 1028 case MGN_2M: 1029 *rate_config |= RRSR_2M; 1030 break; 1031 case MGN_5_5M: 1032 *rate_config |= RRSR_5_5M; 1033 break; 1034 case MGN_11M: 1035 *rate_config |= RRSR_11M; 1036 break; 1037 case MGN_6M: 1038 *rate_config |= RRSR_6M; 1039 break; 1040 case MGN_9M: 1041 *rate_config |= RRSR_9M; 1042 break; 1043 case MGN_12M: 1044 *rate_config |= RRSR_12M; 1045 break; 1046 case MGN_18M: 1047 *rate_config |= RRSR_18M; 1048 break; 1049 case MGN_24M: 1050 *rate_config |= RRSR_24M; 1051 break; 1052 case MGN_36M: 1053 *rate_config |= RRSR_36M; 1054 break; 1055 case MGN_48M: 1056 *rate_config |= RRSR_48M; 1057 break; 1058 case MGN_54M: 1059 *rate_config |= RRSR_54M; 1060 break; 1061 } 1062 } 1063 for (i = 0; i < net->rates_ex_len; i++) { 1064 basic_rate = net->rates_ex[i] & 0x7f; 1065 switch (basic_rate) { 1066 case MGN_1M: 1067 *rate_config |= RRSR_1M; 1068 break; 1069 case MGN_2M: 1070 *rate_config |= RRSR_2M; 1071 break; 1072 case MGN_5_5M: 1073 *rate_config |= RRSR_5_5M; 1074 break; 1075 case MGN_11M: 1076 *rate_config |= RRSR_11M; 1077 break; 1078 case MGN_6M: 1079 *rate_config |= RRSR_6M; 1080 break; 1081 case MGN_9M: 1082 *rate_config |= RRSR_9M; 1083 break; 1084 case MGN_12M: 1085 *rate_config |= RRSR_12M; 1086 break; 1087 case MGN_18M: 1088 *rate_config |= RRSR_18M; 1089 break; 1090 case MGN_24M: 1091 *rate_config |= RRSR_24M; 1092 break; 1093 case MGN_36M: 1094 *rate_config |= RRSR_36M; 1095 break; 1096 case MGN_48M: 1097 *rate_config |= RRSR_48M; 1098 break; 1099 case MGN_54M: 1100 *rate_config |= RRSR_54M; 1101 break; 1102 } 1103 } 1104 } 1105 1106 #define SHORT_SLOT_TIME 9 1107 #define NON_SHORT_SLOT_TIME 20 1108 1109 static void rtl8192_update_cap(struct net_device *dev, u16 cap) 1110 { 1111 u32 tmp = 0; 1112 struct r8192_priv *priv = ieee80211_priv(dev); 1113 struct ieee80211_network *net = &priv->ieee80211->current_network; 1114 1115 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE; 1116 tmp = priv->basic_rate; 1117 if (priv->short_preamble) 1118 tmp |= BRSR_AckShortPmb; 1119 write_nic_dword(dev, RRSR, tmp); 1120 1121 if (net->mode & (IEEE_G | IEEE_N_24G)) { 1122 u8 slot_time = 0; 1123 1124 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) && 1125 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime)) 1126 /* short slot time */ 1127 slot_time = SHORT_SLOT_TIME; 1128 else /* long slot time */ 1129 slot_time = NON_SHORT_SLOT_TIME; 1130 priv->slot_time = slot_time; 1131 write_nic_byte(dev, SLOT_TIME, slot_time); 1132 } 1133 } 1134 1135 static void rtl8192_net_update(struct net_device *dev) 1136 { 1137 struct r8192_priv *priv = ieee80211_priv(dev); 1138 struct ieee80211_network *net; 1139 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf; 1140 u16 rate_config = 0; 1141 1142 net = &priv->ieee80211->current_network; 1143 1144 rtl8192_config_rate(dev, &rate_config); 1145 priv->basic_rate = rate_config & 0x15f; 1146 1147 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]); 1148 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]); 1149 1150 rtl8192_update_msr(dev); 1151 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) { 1152 write_nic_word(dev, ATIMWND, 2); 1153 write_nic_word(dev, BCN_DMATIME, 1023); 1154 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval); 1155 write_nic_word(dev, BCN_DRV_EARLY_INT, 1); 1156 write_nic_byte(dev, BCN_ERR_THRESH, 100); 1157 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT); 1158 /* TODO: BcnIFS may required to be changed on ASIC */ 1159 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS; 1160 1161 write_nic_word(dev, BCN_TCFG, BcnTimeCfg); 1162 } 1163 } 1164 1165 /* temporary hw beacon is not used any more. 1166 * open it when necessary 1167 */ 1168 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate) 1169 { 1170 } 1171 1172 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb) 1173 { 1174 struct r8192_priv *priv = ieee80211_priv(dev); 1175 int status; 1176 struct urb *tx_urb; 1177 unsigned int idx_pipe; 1178 struct tx_desc_cmd_819x_usb *pdesc = (struct tx_desc_cmd_819x_usb *)skb->data; 1179 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1180 u8 queue_index = tcb_desc->queue_index; 1181 1182 atomic_inc(&priv->tx_pending[queue_index]); 1183 tx_urb = usb_alloc_urb(0, GFP_ATOMIC); 1184 if (!tx_urb) { 1185 dev_kfree_skb(skb); 1186 return -ENOMEM; 1187 } 1188 1189 memset(pdesc, 0, USB_HWDESC_HEADER_LEN); 1190 /* Tx descriptor ought to be set according to the skb->cb */ 1191 pdesc->FirstSeg = 1; 1192 pdesc->LastSeg = 1; 1193 pdesc->CmdInit = tcb_desc->bCmdOrInit; 1194 pdesc->TxBufferSize = tcb_desc->txbuf_size; 1195 pdesc->OWN = 1; 1196 pdesc->LINIP = tcb_desc->bLastIniPkt; 1197 1198 /*--------------------------------------------------------------------- 1199 * Fill up USB_OUT_CONTEXT. 1200 *--------------------------------------------------------------------- 1201 */ 1202 idx_pipe = 0x04; 1203 usb_fill_bulk_urb(tx_urb, priv->udev, 1204 usb_sndbulkpipe(priv->udev, idx_pipe), 1205 skb->data, skb->len, rtl8192_tx_isr, skb); 1206 1207 status = usb_submit_urb(tx_urb, GFP_ATOMIC); 1208 1209 if (!status) 1210 return 0; 1211 1212 DMESGE("Error TX CMD URB, error %d", status); 1213 dev_kfree_skb(skb); 1214 usb_free_urb(tx_urb); 1215 return -1; 1216 } 1217 1218 /* 1219 * Mapping Software/Hardware descriptor queue id to "Queue Select Field" 1220 * in TxFwInfo data structure 1221 * 2006.10.30 by Emily 1222 * 1223 * \param QUEUEID Software Queue 1224 */ 1225 static u8 MapHwQueueToFirmwareQueue(u8 QueueID) 1226 { 1227 u8 QueueSelect = 0x0; /* default set to */ 1228 1229 switch (QueueID) { 1230 case BE_QUEUE: 1231 QueueSelect = QSLT_BE; 1232 break; 1233 1234 case BK_QUEUE: 1235 QueueSelect = QSLT_BK; 1236 break; 1237 1238 case VO_QUEUE: 1239 QueueSelect = QSLT_VO; 1240 break; 1241 1242 case VI_QUEUE: 1243 QueueSelect = QSLT_VI; 1244 break; 1245 case MGNT_QUEUE: 1246 QueueSelect = QSLT_MGNT; 1247 break; 1248 1249 case BEACON_QUEUE: 1250 QueueSelect = QSLT_BEACON; 1251 break; 1252 1253 /* TODO: mark other queue selection until we verify it is OK */ 1254 /* TODO: Remove Assertions */ 1255 case TXCMD_QUEUE: 1256 QueueSelect = QSLT_CMD; 1257 break; 1258 case HIGH_QUEUE: 1259 QueueSelect = QSLT_HIGH; 1260 break; 1261 1262 default: 1263 RT_TRACE(COMP_ERR, 1264 "TransmitTCB(): Impossible Queue Selection: %d\n", 1265 QueueID); 1266 break; 1267 } 1268 return QueueSelect; 1269 } 1270 1271 static u8 MRateToHwRate8190Pci(u8 rate) 1272 { 1273 u8 ret = DESC90_RATE1M; 1274 1275 switch (rate) { 1276 case MGN_1M: 1277 ret = DESC90_RATE1M; 1278 break; 1279 case MGN_2M: 1280 ret = DESC90_RATE2M; 1281 break; 1282 case MGN_5_5M: 1283 ret = DESC90_RATE5_5M; 1284 break; 1285 case MGN_11M: 1286 ret = DESC90_RATE11M; 1287 break; 1288 case MGN_6M: 1289 ret = DESC90_RATE6M; 1290 break; 1291 case MGN_9M: 1292 ret = DESC90_RATE9M; 1293 break; 1294 case MGN_12M: 1295 ret = DESC90_RATE12M; 1296 break; 1297 case MGN_18M: 1298 ret = DESC90_RATE18M; 1299 break; 1300 case MGN_24M: 1301 ret = DESC90_RATE24M; 1302 break; 1303 case MGN_36M: 1304 ret = DESC90_RATE36M; 1305 break; 1306 case MGN_48M: 1307 ret = DESC90_RATE48M; 1308 break; 1309 case MGN_54M: 1310 ret = DESC90_RATE54M; 1311 break; 1312 1313 /* HT rate since here */ 1314 case MGN_MCS0: 1315 ret = DESC90_RATEMCS0; 1316 break; 1317 case MGN_MCS1: 1318 ret = DESC90_RATEMCS1; 1319 break; 1320 case MGN_MCS2: 1321 ret = DESC90_RATEMCS2; 1322 break; 1323 case MGN_MCS3: 1324 ret = DESC90_RATEMCS3; 1325 break; 1326 case MGN_MCS4: 1327 ret = DESC90_RATEMCS4; 1328 break; 1329 case MGN_MCS5: 1330 ret = DESC90_RATEMCS5; 1331 break; 1332 case MGN_MCS6: 1333 ret = DESC90_RATEMCS6; 1334 break; 1335 case MGN_MCS7: 1336 ret = DESC90_RATEMCS7; 1337 break; 1338 case MGN_MCS8: 1339 ret = DESC90_RATEMCS8; 1340 break; 1341 case MGN_MCS9: 1342 ret = DESC90_RATEMCS9; 1343 break; 1344 case MGN_MCS10: 1345 ret = DESC90_RATEMCS10; 1346 break; 1347 case MGN_MCS11: 1348 ret = DESC90_RATEMCS11; 1349 break; 1350 case MGN_MCS12: 1351 ret = DESC90_RATEMCS12; 1352 break; 1353 case MGN_MCS13: 1354 ret = DESC90_RATEMCS13; 1355 break; 1356 case MGN_MCS14: 1357 ret = DESC90_RATEMCS14; 1358 break; 1359 case MGN_MCS15: 1360 ret = DESC90_RATEMCS15; 1361 break; 1362 case (0x80 | 0x20): 1363 ret = DESC90_RATEMCS32; 1364 break; 1365 1366 default: 1367 break; 1368 } 1369 return ret; 1370 } 1371 1372 static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc) 1373 { 1374 u8 tmp_Short; 1375 1376 tmp_Short = (TxHT == 1) ? 1377 ((tcb_desc->bUseShortGI) ? 1 : 0) : 1378 ((tcb_desc->bUseShortPreamble) ? 1 : 0); 1379 1380 if (TxHT == 1 && TxRate != DESC90_RATEMCS15) 1381 tmp_Short = 0; 1382 1383 return tmp_Short; 1384 } 1385 1386 static void tx_zero_isr(struct urb *tx_urb) 1387 { 1388 } 1389 1390 /* 1391 * The tx procedure is just as following, 1392 * skb->cb will contain all the following information, 1393 * priority, morefrag, rate, &dev. 1394 */ 1395 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) 1396 { 1397 struct r8192_priv *priv = ieee80211_priv(dev); 1398 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1399 struct tx_desc_819x_usb *tx_desc = (struct tx_desc_819x_usb *)skb->data; 1400 struct tx_fwinfo_819x_usb *tx_fwinfo = 1401 (struct tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN); 1402 struct usb_device *udev = priv->udev; 1403 int pend; 1404 int status, rt = -1; 1405 struct urb *tx_urb = NULL, *tx_urb_zero = NULL; 1406 unsigned int idx_pipe; 1407 1408 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]); 1409 /* we are locked here so the two atomic_read and inc are executed 1410 * without interleaves 1411 * !!! For debug purpose 1412 */ 1413 if (pend > MAX_TX_URB) { 1414 netdev_dbg(dev, "To discard skb packet!\n"); 1415 dev_kfree_skb_any(skb); 1416 return -1; 1417 } 1418 1419 tx_urb = usb_alloc_urb(0, GFP_ATOMIC); 1420 if (!tx_urb) { 1421 dev_kfree_skb_any(skb); 1422 return -ENOMEM; 1423 } 1424 1425 /* Fill Tx firmware info */ 1426 memset(tx_fwinfo, 0, sizeof(struct tx_fwinfo_819x_usb)); 1427 /* DWORD 0 */ 1428 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0; 1429 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate); 1430 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur; 1431 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate, 1432 tcb_desc); 1433 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */ 1434 tx_fwinfo->AllowAggregation = 1; 1435 /* DWORD 1 */ 1436 tx_fwinfo->RxMF = tcb_desc->ampdu_factor; 1437 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07; 1438 } else { 1439 tx_fwinfo->AllowAggregation = 0; 1440 /* DWORD 1 */ 1441 tx_fwinfo->RxMF = 0; 1442 tx_fwinfo->RxAMD = 0; 1443 } 1444 1445 /* Protection mode related */ 1446 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0; 1447 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0; 1448 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0; 1449 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0; 1450 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate); 1451 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0; 1452 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0; 1453 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) : 1454 (tcb_desc->bRTSUseShortGI ? 1 : 0); 1455 1456 /* Set Bandwidth and sub-channel settings. */ 1457 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) { 1458 if (tcb_desc->bPacketBW) { 1459 tx_fwinfo->TxBandwidth = 1; 1460 /* use duplicated mode */ 1461 tx_fwinfo->TxSubCarrier = 0; 1462 } else { 1463 tx_fwinfo->TxBandwidth = 0; 1464 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC; 1465 } 1466 } else { 1467 tx_fwinfo->TxBandwidth = 0; 1468 tx_fwinfo->TxSubCarrier = 0; 1469 } 1470 1471 /* Fill Tx descriptor */ 1472 memset(tx_desc, 0, sizeof(struct tx_desc_819x_usb)); 1473 /* DWORD 0 */ 1474 tx_desc->LINIP = 0; 1475 tx_desc->CmdInit = 1; 1476 tx_desc->Offset = sizeof(struct tx_fwinfo_819x_usb) + 8; 1477 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff; 1478 1479 /*DWORD 1*/ 1480 tx_desc->SecCAMID = 0; 1481 tx_desc->RATid = tcb_desc->RATRIndex; 1482 tx_desc->NoEnc = 1; 1483 tx_desc->SecType = 0x0; 1484 if (tcb_desc->bHwSec) { 1485 switch (priv->ieee80211->pairwise_key_type) { 1486 case KEY_TYPE_WEP40: 1487 case KEY_TYPE_WEP104: 1488 tx_desc->SecType = 0x1; 1489 tx_desc->NoEnc = 0; 1490 break; 1491 case KEY_TYPE_TKIP: 1492 tx_desc->SecType = 0x2; 1493 tx_desc->NoEnc = 0; 1494 break; 1495 case KEY_TYPE_CCMP: 1496 tx_desc->SecType = 0x3; 1497 tx_desc->NoEnc = 0; 1498 break; 1499 case KEY_TYPE_NA: 1500 tx_desc->SecType = 0x0; 1501 tx_desc->NoEnc = 1; 1502 break; 1503 } 1504 } 1505 1506 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index); 1507 tx_desc->TxFWInfoSize = sizeof(struct tx_fwinfo_819x_usb); 1508 1509 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack; 1510 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate; 1511 1512 /* Fill fields that are required to be initialized in 1513 * all of the descriptors 1514 */ 1515 /* DWORD 0 */ 1516 tx_desc->FirstSeg = 1; 1517 tx_desc->LastSeg = 1; 1518 tx_desc->OWN = 1; 1519 1520 /* DWORD 2 */ 1521 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN); 1522 idx_pipe = 0x5; 1523 1524 /* To submit bulk urb */ 1525 usb_fill_bulk_urb(tx_urb, udev, 1526 usb_sndbulkpipe(udev, idx_pipe), skb->data, 1527 skb->len, rtl8192_tx_isr, skb); 1528 1529 status = usb_submit_urb(tx_urb, GFP_ATOMIC); 1530 if (!status) { 1531 /* We need to send 0 byte packet whenever 1532 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has 1533 * been transmitted. Otherwise, it will be halt to wait for 1534 * another packet. 1535 */ 1536 bool bSend0Byte = false; 1537 u8 zero = 0; 1538 1539 if (udev->speed == USB_SPEED_HIGH) { 1540 if (skb->len > 0 && skb->len % 512 == 0) 1541 bSend0Byte = true; 1542 } else { 1543 if (skb->len > 0 && skb->len % 64 == 0) 1544 bSend0Byte = true; 1545 } 1546 if (bSend0Byte) { 1547 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC); 1548 if (!tx_urb_zero) { 1549 rt = -ENOMEM; 1550 goto error; 1551 } 1552 usb_fill_bulk_urb(tx_urb_zero, udev, 1553 usb_sndbulkpipe(udev, idx_pipe), 1554 &zero, 0, tx_zero_isr, dev); 1555 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC); 1556 if (status) { 1557 RT_TRACE(COMP_ERR, 1558 "Error TX URB for zero byte %d, error %d", 1559 atomic_read(&priv->tx_pending[tcb_desc->queue_index]), 1560 status); 1561 goto error; 1562 } 1563 } 1564 netif_trans_update(dev); 1565 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]); 1566 return 0; 1567 } 1568 1569 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d", 1570 atomic_read(&priv->tx_pending[tcb_desc->queue_index]), 1571 status); 1572 1573 error: 1574 dev_kfree_skb_any(skb); 1575 usb_free_urb(tx_urb); 1576 usb_free_urb(tx_urb_zero); 1577 return rt; 1578 } 1579 1580 static short rtl8192_usb_initendpoints(struct net_device *dev) 1581 { 1582 struct r8192_priv *priv = ieee80211_priv(dev); 1583 1584 priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *), 1585 GFP_KERNEL); 1586 if (!priv->rx_urb) 1587 return -ENOMEM; 1588 1589 #ifndef JACKSON_NEW_RX 1590 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1591 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); 1592 if (!priv->rx_urb[i]) 1593 return -ENOMEM; 1594 1595 priv->rx_urb[i]->transfer_buffer = 1596 kmalloc(RX_URB_SIZE, GFP_KERNEL); 1597 if (!priv->rx_urb[i]->transfer_buffer) 1598 return -ENOMEM; 1599 1600 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE; 1601 } 1602 #endif 1603 1604 #ifdef THOMAS_BEACON 1605 { 1606 long align = 0; 1607 void *oldaddr, *newaddr; 1608 1609 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL); 1610 if (!priv->rx_urb[16]) 1611 return -ENOMEM; 1612 priv->oldaddr = kmalloc(16, GFP_KERNEL); 1613 if (!priv->oldaddr) 1614 return -ENOMEM; 1615 oldaddr = priv->oldaddr; 1616 align = ((long)oldaddr) & 3; 1617 if (align) { 1618 newaddr = oldaddr + 4 - align; 1619 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align; 1620 } else { 1621 newaddr = oldaddr; 1622 priv->rx_urb[16]->transfer_buffer_length = 16; 1623 } 1624 priv->rx_urb[16]->transfer_buffer = newaddr; 1625 } 1626 #endif 1627 1628 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB); 1629 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *), 1630 GFP_KERNEL); 1631 if (!priv->pp_rxskb) { 1632 kfree(priv->rx_urb); 1633 1634 priv->pp_rxskb = NULL; 1635 priv->rx_urb = NULL; 1636 1637 DMESGE("Endpoint Alloc Failure"); 1638 return -ENOMEM; 1639 } 1640 1641 netdev_dbg(dev, "End of initendpoints\n"); 1642 return 0; 1643 } 1644 1645 #ifdef THOMAS_BEACON 1646 static void rtl8192_usb_deleteendpoints(struct net_device *dev) 1647 { 1648 int i; 1649 struct r8192_priv *priv = ieee80211_priv(dev); 1650 1651 if (priv->rx_urb) { 1652 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1653 usb_kill_urb(priv->rx_urb[i]); 1654 usb_free_urb(priv->rx_urb[i]); 1655 } 1656 kfree(priv->rx_urb); 1657 priv->rx_urb = NULL; 1658 } 1659 kfree(priv->oldaddr); 1660 priv->oldaddr = NULL; 1661 1662 kfree(priv->pp_rxskb); 1663 priv->pp_rxskb = NULL; 1664 } 1665 #else 1666 void rtl8192_usb_deleteendpoints(struct net_device *dev) 1667 { 1668 int i; 1669 struct r8192_priv *priv = ieee80211_priv(dev); 1670 1671 #ifndef JACKSON_NEW_RX 1672 1673 if (priv->rx_urb) { 1674 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1675 usb_kill_urb(priv->rx_urb[i]); 1676 kfree(priv->rx_urb[i]->transfer_buffer); 1677 usb_free_urb(priv->rx_urb[i]); 1678 } 1679 kfree(priv->rx_urb); 1680 priv->rx_urb = NULL; 1681 } 1682 #else 1683 kfree(priv->rx_urb); 1684 priv->rx_urb = NULL; 1685 kfree(priv->oldaddr); 1686 priv->oldaddr = NULL; 1687 1688 kfree(priv->pp_rxskb); 1689 priv->pp_rxskb = 0; 1690 1691 #endif 1692 } 1693 #endif 1694 1695 static void rtl8192_update_ratr_table(struct net_device *dev); 1696 static void rtl8192_link_change(struct net_device *dev) 1697 { 1698 struct r8192_priv *priv = ieee80211_priv(dev); 1699 struct ieee80211_device *ieee = priv->ieee80211; 1700 1701 if (ieee->state == IEEE80211_LINKED) { 1702 rtl8192_net_update(dev); 1703 rtl8192_update_ratr_table(dev); 1704 /* Add this as in pure N mode, wep encryption will use software 1705 * way, but there is no chance to set this as wep will not set 1706 * group key in wext. 1707 */ 1708 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 || 1709 ieee->pairwise_key_type == KEY_TYPE_WEP104) 1710 EnableHWSecurityConfig8192(dev); 1711 } 1712 /*update timing params*/ 1713 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) { 1714 u32 reg = 0; 1715 1716 read_nic_dword(dev, RCR, ®); 1717 if (priv->ieee80211->state == IEEE80211_LINKED) 1718 priv->ReceiveConfig = reg |= RCR_CBSSID; 1719 else 1720 priv->ReceiveConfig = reg &= ~RCR_CBSSID; 1721 write_nic_dword(dev, RCR, reg); 1722 } 1723 } 1724 1725 static const struct ieee80211_qos_parameters def_qos_parameters = { 1726 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)}, 1727 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)}, 1728 {2, 2, 2, 2},/* aifs */ 1729 {0, 0, 0, 0},/* flags */ 1730 {0, 0, 0, 0} /* tx_op_limit */ 1731 }; 1732 1733 static void rtl8192_update_beacon(struct work_struct *work) 1734 { 1735 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1736 update_beacon_wq.work); 1737 struct net_device *dev = priv->ieee80211->dev; 1738 struct ieee80211_device *ieee = priv->ieee80211; 1739 struct ieee80211_network *net = &ieee->current_network; 1740 1741 if (ieee->pHTInfo->bCurrentHTSupport) 1742 HTUpdateSelfAndPeerSetting(ieee, net); 1743 ieee->pHTInfo->bCurrentRT2RTLongSlotTime = 1744 net->bssht.bdRT2RTLongSlotTime; 1745 rtl8192_update_cap(dev, net->capability); 1746 } 1747 1748 /* 1749 * background support to run QoS activate functionality 1750 */ 1751 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK, 1752 EDCAPARA_VI, EDCAPARA_VO}; 1753 static void rtl8192_qos_activate(struct work_struct *work) 1754 { 1755 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1756 qos_activate); 1757 struct net_device *dev = priv->ieee80211->dev; 1758 struct ieee80211_qos_parameters *qos_parameters = 1759 &priv->ieee80211->current_network.qos_data.parameters; 1760 u8 mode = priv->ieee80211->current_network.mode; 1761 u32 u1bAIFS; 1762 u32 u4bAcParam; 1763 u32 op_limit; 1764 u32 cw_max; 1765 u32 cw_min; 1766 int i; 1767 1768 mutex_lock(&priv->mutex); 1769 if (priv->ieee80211->state != IEEE80211_LINKED) 1770 goto success; 1771 RT_TRACE(COMP_QOS, 1772 "qos active process with associate response received\n"); 1773 /* It better set slot time at first 1774 * 1775 * For we just support b/g mode at present, let the slot time at 1776 * 9/20 selection 1777 * 1778 * update the ac parameter to related registers 1779 */ 1780 for (i = 0; i < QOS_QUEUE_NUM; i++) { 1781 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */ 1782 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime; 1783 u1bAIFS <<= AC_PARAM_AIFS_OFFSET; 1784 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]); 1785 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET; 1786 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]); 1787 cw_max <<= AC_PARAM_ECW_MAX_OFFSET; 1788 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]); 1789 cw_min <<= AC_PARAM_ECW_MIN_OFFSET; 1790 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS; 1791 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam); 1792 } 1793 1794 success: 1795 mutex_unlock(&priv->mutex); 1796 } 1797 1798 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv, 1799 int active_network, 1800 struct ieee80211_network *network) 1801 { 1802 int ret = 0; 1803 u32 size = sizeof(struct ieee80211_qos_parameters); 1804 1805 if (priv->ieee80211->state != IEEE80211_LINKED) 1806 return ret; 1807 1808 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1809 return ret; 1810 1811 if (network->flags & NETWORK_HAS_QOS_MASK) { 1812 if (active_network && 1813 (network->flags & NETWORK_HAS_QOS_PARAMETERS)) 1814 network->qos_data.active = network->qos_data.supported; 1815 1816 if ((network->qos_data.active == 1) && (active_network == 1) && 1817 (network->flags & NETWORK_HAS_QOS_PARAMETERS) && 1818 (network->qos_data.old_param_count != 1819 network->qos_data.param_count)) { 1820 network->qos_data.old_param_count = 1821 network->qos_data.param_count; 1822 schedule_work(&priv->qos_activate); 1823 RT_TRACE(COMP_QOS, 1824 "QoS parameters change call qos_activate\n"); 1825 } 1826 } else { 1827 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1828 &def_qos_parameters, size); 1829 1830 if ((network->qos_data.active == 1) && (active_network == 1)) { 1831 schedule_work(&priv->qos_activate); 1832 RT_TRACE(COMP_QOS, 1833 "QoS was disabled call qos_activate\n"); 1834 } 1835 network->qos_data.active = 0; 1836 network->qos_data.supported = 0; 1837 } 1838 1839 return 0; 1840 } 1841 1842 /* handle and manage frame from beacon and probe response */ 1843 static int rtl8192_handle_beacon(struct net_device *dev, 1844 struct ieee80211_beacon *beacon, 1845 struct ieee80211_network *network) 1846 { 1847 struct r8192_priv *priv = ieee80211_priv(dev); 1848 1849 rtl8192_qos_handle_probe_response(priv, 1, network); 1850 schedule_delayed_work(&priv->update_beacon_wq, 0); 1851 return 0; 1852 } 1853 1854 /* 1855 * handling the beaconing responses. if we get different QoS setting 1856 * off the network from the associated setting, adjust the QoS 1857 * setting 1858 */ 1859 static int rtl8192_qos_association_resp(struct r8192_priv *priv, 1860 struct ieee80211_network *network) 1861 { 1862 unsigned long flags; 1863 u32 size = sizeof(struct ieee80211_qos_parameters); 1864 int set_qos_param = 0; 1865 1866 if (!priv || !network) 1867 return 0; 1868 1869 if (priv->ieee80211->state != IEEE80211_LINKED) 1870 return 0; 1871 1872 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1873 return 0; 1874 1875 spin_lock_irqsave(&priv->ieee80211->lock, flags); 1876 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { 1877 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1878 &network->qos_data.parameters, 1879 sizeof(struct ieee80211_qos_parameters)); 1880 priv->ieee80211->current_network.qos_data.active = 1; 1881 set_qos_param = 1; 1882 /* update qos parameter for current network */ 1883 priv->ieee80211->current_network.qos_data.old_param_count = 1884 priv->ieee80211->current_network.qos_data.param_count; 1885 priv->ieee80211->current_network.qos_data.param_count = 1886 network->qos_data.param_count; 1887 } else { 1888 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1889 &def_qos_parameters, size); 1890 priv->ieee80211->current_network.qos_data.active = 0; 1891 priv->ieee80211->current_network.qos_data.supported = 0; 1892 set_qos_param = 1; 1893 } 1894 1895 spin_unlock_irqrestore(&priv->ieee80211->lock, flags); 1896 1897 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__, 1898 network->flags, 1899 priv->ieee80211->current_network.qos_data.active); 1900 if (set_qos_param == 1) 1901 schedule_work(&priv->qos_activate); 1902 1903 return 0; 1904 } 1905 1906 static int rtl8192_handle_assoc_response(struct net_device *dev, 1907 struct ieee80211_assoc_response_frame *resp, 1908 struct ieee80211_network *network) 1909 { 1910 struct r8192_priv *priv = ieee80211_priv(dev); 1911 1912 rtl8192_qos_association_resp(priv, network); 1913 return 0; 1914 } 1915 1916 static void rtl8192_update_ratr_table(struct net_device *dev) 1917 { 1918 struct r8192_priv *priv = ieee80211_priv(dev); 1919 struct ieee80211_device *ieee = priv->ieee80211; 1920 u8 *pMcsRate = ieee->dot11HTOperationalRateSet; 1921 u32 ratr_value = 0; 1922 u8 rate_index = 0; 1923 1924 rtl8192_config_rate(dev, (u16 *)(&ratr_value)); 1925 ratr_value |= (*(u16 *)(pMcsRate)) << 12; 1926 switch (ieee->mode) { 1927 case IEEE_A: 1928 ratr_value &= 0x00000FF0; 1929 break; 1930 case IEEE_B: 1931 ratr_value &= 0x0000000F; 1932 break; 1933 case IEEE_G: 1934 ratr_value &= 0x00000FF7; 1935 break; 1936 case IEEE_N_24G: 1937 case IEEE_N_5G: 1938 if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) { 1939 ratr_value &= 0x0007F007; 1940 } else { 1941 if (priv->rf_type == RF_1T2R) 1942 ratr_value &= 0x000FF007; 1943 else 1944 ratr_value &= 0x0F81F007; 1945 } 1946 break; 1947 default: 1948 break; 1949 } 1950 ratr_value &= 0x0FFFFFFF; 1951 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz) 1952 ratr_value |= 0x80000000; 1953 else if (!ieee->pHTInfo->bCurTxBW40MHz && 1954 ieee->pHTInfo->bCurShortGI20MHz) 1955 ratr_value |= 0x80000000; 1956 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value); 1957 write_nic_byte(dev, UFWP, 1); 1958 } 1959 1960 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04}; 1961 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04}; 1962 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev) 1963 { 1964 struct r8192_priv *priv = ieee80211_priv(dev); 1965 struct ieee80211_device *ieee = priv->ieee80211; 1966 struct ieee80211_network *network = &ieee->current_network; 1967 int wpa_ie_len = ieee->wpa_ie_len; 1968 struct ieee80211_crypt_data *crypt; 1969 int encrypt; 1970 1971 crypt = ieee->crypt[ieee->tx_keyidx]; 1972 /* we use connecting AP's capability instead of only security config 1973 * on our driver to distinguish whether it should use N mode or G mode 1974 */ 1975 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) || 1976 (ieee->host_encrypt && crypt && crypt->ops && 1977 (strcmp(crypt->ops->name, "WEP") == 0)); 1978 1979 /* simply judge */ 1980 if (encrypt && (wpa_ie_len == 0)) { 1981 /* wep encryption, no N mode setting */ 1982 return false; 1983 } else if ((wpa_ie_len != 0)) { 1984 /* parse pairwise key type */ 1985 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)))) 1986 return true; 1987 else 1988 return false; 1989 } else { 1990 return true; 1991 } 1992 1993 return true; 1994 } 1995 1996 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev) 1997 { 1998 struct r8192_priv *priv = ieee80211_priv(dev); 1999 2000 return priv->ieee80211->bHalfWirelessN24GMode; 2001 } 2002 2003 static void rtl8192_refresh_supportrate(struct r8192_priv *priv) 2004 { 2005 struct ieee80211_device *ieee = priv->ieee80211; 2006 /* We do not consider set support rate for ABG mode, only 2007 * HT MCS rate is set here. 2008 */ 2009 if (ieee->mode == WIRELESS_MODE_N_24G || 2010 ieee->mode == WIRELESS_MODE_N_5G) 2011 memcpy(ieee->Regdot11HTOperationalRateSet, 2012 ieee->RegHTSuppRateSet, 16); 2013 else 2014 memset(ieee->Regdot11HTOperationalRateSet, 0, 16); 2015 } 2016 2017 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev) 2018 { 2019 struct r8192_priv *priv = ieee80211_priv(dev); 2020 u8 ret = 0; 2021 2022 switch (priv->rf_chip) { 2023 case RF_8225: 2024 case RF_8256: 2025 case RF_PSEUDO_11N: 2026 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B; 2027 break; 2028 case RF_8258: 2029 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G; 2030 break; 2031 default: 2032 ret = WIRELESS_MODE_B; 2033 break; 2034 } 2035 return ret; 2036 } 2037 2038 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) 2039 { 2040 struct r8192_priv *priv = ieee80211_priv(dev); 2041 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev); 2042 2043 if (wireless_mode == WIRELESS_MODE_AUTO || 2044 (wireless_mode & bSupportMode) == 0) { 2045 if (bSupportMode & WIRELESS_MODE_N_24G) { 2046 wireless_mode = WIRELESS_MODE_N_24G; 2047 } else if (bSupportMode & WIRELESS_MODE_N_5G) { 2048 wireless_mode = WIRELESS_MODE_N_5G; 2049 } else if ((bSupportMode & WIRELESS_MODE_A)) { 2050 wireless_mode = WIRELESS_MODE_A; 2051 } else if ((bSupportMode & WIRELESS_MODE_G)) { 2052 wireless_mode = WIRELESS_MODE_G; 2053 } else if ((bSupportMode & WIRELESS_MODE_B)) { 2054 wireless_mode = WIRELESS_MODE_B; 2055 } else { 2056 RT_TRACE(COMP_ERR, 2057 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n", 2058 __func__, bSupportMode); 2059 wireless_mode = WIRELESS_MODE_B; 2060 } 2061 } 2062 priv->ieee80211->mode = wireless_mode; 2063 2064 if (wireless_mode == WIRELESS_MODE_N_24G || 2065 wireless_mode == WIRELESS_MODE_N_5G) 2066 priv->ieee80211->pHTInfo->bEnableHT = 1; 2067 else 2068 priv->ieee80211->pHTInfo->bEnableHT = 0; 2069 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode); 2070 rtl8192_refresh_supportrate(priv); 2071 } 2072 2073 /* init priv variables here. only non_zero value should be initialized here. */ 2074 static int rtl8192_init_priv_variable(struct net_device *dev) 2075 { 2076 struct r8192_priv *priv = ieee80211_priv(dev); 2077 u8 i; 2078 2079 priv->card_8192 = NIC_8192U; 2080 priv->chan = 1; /* set to channel 1 */ 2081 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */ 2082 priv->ieee80211->iw_mode = IW_MODE_INFRA; 2083 priv->ieee80211->ieee_up = 0; 2084 priv->retry_rts = DEFAULT_RETRY_RTS; 2085 priv->retry_data = DEFAULT_RETRY_DATA; 2086 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD; 2087 priv->ieee80211->rate = 110; /* 11 mbps */ 2088 priv->ieee80211->short_slot = 1; 2089 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 2090 priv->CckPwEnl = 6; 2091 /* for silent reset */ 2092 priv->IrpPendingCount = 1; 2093 priv->ResetProgress = RESET_TYPE_NORESET; 2094 priv->bForcedSilentReset = false; 2095 priv->bDisableNormalResetCheck = false; 2096 priv->force_reset = false; 2097 2098 /* we don't use FW read/write RF until stable firmware is available. */ 2099 priv->ieee80211->FwRWRF = 0; 2100 priv->ieee80211->current_network.beacon_interval = 2101 DEFAULT_BEACONINTERVAL; 2102 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN | 2103 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ | 2104 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE | 2105 IEEE_SOFTMAC_BEACONS; 2106 2107 priv->ieee80211->active_scan = 1; 2108 priv->ieee80211->modulation = 2109 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION; 2110 priv->ieee80211->host_encrypt = 1; 2111 priv->ieee80211->host_decrypt = 1; 2112 priv->ieee80211->start_send_beacons = NULL; 2113 priv->ieee80211->stop_send_beacons = NULL; 2114 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit; 2115 priv->ieee80211->set_chan = rtl8192_set_chan; 2116 priv->ieee80211->link_change = rtl8192_link_change; 2117 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit; 2118 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop; 2119 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume; 2120 priv->ieee80211->init_wmmparam_flag = 0; 2121 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD; 2122 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc; 2123 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES; 2124 priv->ieee80211->qos_support = 1; 2125 2126 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode; 2127 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response; 2128 priv->ieee80211->handle_beacon = rtl8192_handle_beacon; 2129 2130 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192; 2131 priv->ieee80211->GetHalfNmodeSupportByAPsHandler = 2132 GetHalfNmodeSupportByAPs819xUsb; 2133 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode; 2134 2135 priv->ieee80211->InitialGainHandler = InitialGain819xUsb; 2136 priv->card_type = USB; 2137 priv->ShortRetryLimit = 0x30; 2138 priv->LongRetryLimit = 0x30; 2139 priv->EarlyRxThreshold = 7; 2140 priv->enable_gpio0 = 0; 2141 priv->TransmitConfig = 2142 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */ 2143 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) | 2144 /* Short retry limit */ 2145 (priv->ShortRetryLimit << TCR_SRL_OFFSET) | 2146 /* Long retry limit */ 2147 (priv->LongRetryLimit << TCR_LRL_OFFSET) | 2148 /* FALSE: HW provides PLCP length and LENGEXT 2149 * TRUE: SW provides them 2150 */ 2151 (false ? TCR_SAT : 0); 2152 priv->ReceiveConfig = 2153 /* accept management/data */ 2154 RCR_AMF | RCR_ADF | 2155 /* accept control frame for SW AP needs PS-poll */ 2156 RCR_ACF | 2157 /* accept BC/MC/UC */ 2158 RCR_AB | RCR_AM | RCR_APM | 2159 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */ 2160 ((u32)7 << RCR_MXDMA_OFFSET) | 2161 /* Rx FIFO Threshold, 7: No Rx threshold. */ 2162 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) | 2163 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0); 2164 2165 priv->AcmControl = 0; 2166 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL); 2167 if (!priv->pFirmware) 2168 return -ENOMEM; 2169 2170 /* rx related queue */ 2171 skb_queue_head_init(&priv->rx_queue); 2172 skb_queue_head_init(&priv->skb_queue); 2173 2174 /* Tx related queue */ 2175 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2176 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]); 2177 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2178 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]); 2179 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2180 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]); 2181 priv->rf_set_chan = rtl8192_phy_SwChnl; 2182 2183 return 0; 2184 } 2185 2186 /* init lock here */ 2187 static void rtl8192_init_priv_lock(struct r8192_priv *priv) 2188 { 2189 spin_lock_init(&priv->tx_lock); 2190 spin_lock_init(&priv->irq_lock); 2191 mutex_init(&priv->wx_mutex); 2192 mutex_init(&priv->mutex); 2193 } 2194 2195 static void rtl819x_watchdog_wqcallback(struct work_struct *work); 2196 2197 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t); 2198 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */ 2199 #define DRV_NAME "wlan0" 2200 static void rtl8192_init_priv_task(struct net_device *dev) 2201 { 2202 struct r8192_priv *priv = ieee80211_priv(dev); 2203 2204 INIT_WORK(&priv->reset_wq, rtl8192_restart); 2205 2206 INIT_DELAYED_WORK(&priv->watch_dog_wq, 2207 rtl819x_watchdog_wqcallback); 2208 INIT_DELAYED_WORK(&priv->txpower_tracking_wq, 2209 dm_txpower_trackingcallback); 2210 INIT_DELAYED_WORK(&priv->rfpath_check_wq, 2211 dm_rf_pathcheck_workitemcallback); 2212 INIT_DELAYED_WORK(&priv->update_beacon_wq, 2213 rtl8192_update_beacon); 2214 INIT_DELAYED_WORK(&priv->initialgain_operate_wq, 2215 InitialGainOperateWorkItemCallBack); 2216 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate); 2217 2218 tasklet_setup(&priv->irq_rx_tasklet, rtl8192_irq_rx_tasklet); 2219 } 2220 2221 static void rtl8192_get_eeprom_size(struct net_device *dev) 2222 { 2223 u16 curCR = 0; 2224 struct r8192_priv *priv = ieee80211_priv(dev); 2225 2226 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); 2227 read_nic_word_E(dev, EPROM_CMD, &curCR); 2228 RT_TRACE(COMP_EPROM, 2229 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR); 2230 /* whether need I consider BIT(5?) */ 2231 priv->epromtype = 2232 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46; 2233 RT_TRACE(COMP_EPROM, 2234 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype); 2235 } 2236 2237 /* used to swap endian. as ntohl & htonl are not necessary 2238 * to swap endian, so use this instead. 2239 */ 2240 static inline u16 endian_swap(u16 *data) 2241 { 2242 u16 tmp = *data; 2243 *data = (tmp >> 8) | (tmp << 8); 2244 return *data; 2245 } 2246 2247 static int rtl8192_read_eeprom_info(struct net_device *dev) 2248 { 2249 u16 wEPROM_ID = 0; 2250 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02}; 2251 u8 bLoad_From_EEPOM = false; 2252 struct r8192_priv *priv = ieee80211_priv(dev); 2253 u16 tmpValue = 0; 2254 int i; 2255 int ret; 2256 2257 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); 2258 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */ 2259 if (ret < 0) 2260 return ret; 2261 wEPROM_ID = (u16)ret; 2262 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID); 2263 2264 if (wEPROM_ID != RTL8190_EEPROM_ID) 2265 RT_TRACE(COMP_ERR, 2266 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n", 2267 wEPROM_ID, RTL8190_EEPROM_ID); 2268 else 2269 bLoad_From_EEPOM = true; 2270 2271 if (bLoad_From_EEPOM) { 2272 tmpValue = eprom_read(dev, EEPROM_VID >> 1); 2273 ret = eprom_read(dev, EEPROM_VID >> 1); 2274 if (ret < 0) 2275 return ret; 2276 tmpValue = (u16)ret; 2277 priv->eeprom_vid = endian_swap(&tmpValue); 2278 ret = eprom_read(dev, EEPROM_PID >> 1); 2279 if (ret < 0) 2280 return ret; 2281 priv->eeprom_pid = (u16)ret; 2282 ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1); 2283 if (ret < 0) 2284 return ret; 2285 tmpValue = (u16)ret; 2286 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8; 2287 priv->btxpowerdata_readfromEEPORM = true; 2288 ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8; 2289 if (ret < 0) 2290 return ret; 2291 priv->eeprom_CustomerID = (u16)ret; 2292 } else { 2293 priv->eeprom_vid = 0; 2294 priv->eeprom_pid = 0; 2295 priv->card_8192_version = VERSION_819XU_B; 2296 priv->eeprom_ChannelPlan = 0; 2297 priv->eeprom_CustomerID = 0; 2298 } 2299 RT_TRACE(COMP_EPROM, 2300 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n", 2301 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID, 2302 priv->eeprom_ChannelPlan); 2303 /* set channelplan from eeprom */ 2304 priv->ChannelPlan = priv->eeprom_ChannelPlan; 2305 if (bLoad_From_EEPOM) { 2306 for (i = 0; i < 6; i += 2) { 2307 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1)); 2308 if (ret < 0) 2309 return ret; 2310 *(u16 *)(&dev->dev_addr[i]) = (u16)ret; 2311 } 2312 } else { 2313 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6); 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 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 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 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT) 2670 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */ 2671 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY) 2672 dwRegRead |= CPU_GEN_FIRMWARE_RESET; 2673 else 2674 RT_TRACE(COMP_ERR, 2675 "ERROR in %s(): undefined firmware state(%d)\n", 2676 __func__, priv->pFirmware->firmware_status); 2677 2678 write_nic_dword(dev, CPU_GEN, dwRegRead); 2679 /* config BB. */ 2680 rtl8192_BBConfig(dev); 2681 2682 /* Loopback mode or not */ 2683 priv->LoopbackMode = RTL819xU_NO_LOOPBACK; 2684 2685 read_nic_dword(dev, CPU_GEN, &dwRegRead); 2686 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK) 2687 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) | 2688 CPU_GEN_NO_LOOPBACK_SET; 2689 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK) 2690 dwRegRead |= CPU_CCK_LOOPBACK; 2691 else 2692 RT_TRACE(COMP_ERR, 2693 "Serious error in %s(): wrong loopback mode setting(%d)\n", 2694 __func__, priv->LoopbackMode); 2695 2696 write_nic_dword(dev, CPU_GEN, dwRegRead); 2697 2698 /* after reset cpu, we need wait for a seconds to write in register. */ 2699 udelay(500); 2700 2701 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */ 2702 read_nic_byte_E(dev, 0x5f, &tmp); 2703 write_nic_byte_E(dev, 0x5f, tmp | 0x20); 2704 2705 /* Set Hardware */ 2706 rtl8192_hwconfig(dev); 2707 2708 /* turn on Tx/Rx */ 2709 write_nic_byte(dev, CMDR, CR_RE | CR_TE); 2710 2711 /* set IDR0 here */ 2712 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]); 2713 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]); 2714 2715 /* set RCR */ 2716 write_nic_dword(dev, RCR, priv->ReceiveConfig); 2717 2718 /* Initialize Number of Reserved Pages in Firmware Queue */ 2719 write_nic_dword(dev, RQPN1, 2720 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT | 2721 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT | 2722 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT | 2723 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT); 2724 write_nic_dword(dev, RQPN2, 2725 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT | 2726 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT); 2727 write_nic_dword(dev, RQPN3, 2728 APPLIED_RESERVED_QUEUE_IN_FW | 2729 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT); 2730 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK)); 2731 2732 /* Set AckTimeout */ 2733 /* TODO: (it value is only for FPGA version). need to be changed!! */ 2734 write_nic_byte(dev, ACK_TIMEOUT, 0x30); 2735 2736 if (priv->ResetProgress == RESET_TYPE_NORESET) 2737 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode); 2738 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2739 CamResetAllEntry(dev); 2740 SECR_value |= SCR_TxEncEnable; 2741 SECR_value |= SCR_RxDecEnable; 2742 SECR_value |= SCR_NoSKMC; 2743 write_nic_byte(dev, SECR, SECR_value); 2744 } 2745 2746 /* Beacon related */ 2747 write_nic_word(dev, ATIMWND, 2); 2748 write_nic_word(dev, BCN_INTERVAL, 100); 2749 2750 #define DEFAULT_EDCA 0x005e4332 2751 { 2752 int i; 2753 2754 for (i = 0; i < QOS_QUEUE_NUM; i++) 2755 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA); 2756 } 2757 2758 rtl8192_phy_configmac(dev); 2759 2760 if (priv->card_8192_version == VERSION_819XU_A) { 2761 rtl8192_phy_getTxPower(dev); 2762 rtl8192_phy_setTxPower(dev, priv->chan); 2763 } 2764 2765 /* Firmware download */ 2766 init_status = init_firmware(dev); 2767 if (!init_status) { 2768 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n", 2769 __func__); 2770 return init_status; 2771 } 2772 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__); 2773 2774 /* config RF. */ 2775 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2776 rtl8192_phy_RFConfig(dev); 2777 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__); 2778 } 2779 2780 if (priv->ieee80211->FwRWRF) 2781 /* We can force firmware to do RF-R/W */ 2782 priv->Rf_Mode = RF_OP_By_FW; 2783 else 2784 priv->Rf_Mode = RF_OP_By_SW_3wire; 2785 2786 rtl8192_phy_updateInitGain(dev); 2787 /*--set CCK and OFDM Block "ON"--*/ 2788 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1); 2789 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1); 2790 2791 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2792 /* if D or C cut */ 2793 u8 tmpvalue; 2794 2795 read_nic_byte(dev, 0x301, &tmpvalue); 2796 if (tmpvalue == 0x03) { 2797 priv->bDcut = true; 2798 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n"); 2799 } else { 2800 priv->bDcut = false; 2801 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n"); 2802 } 2803 dm_initialize_txpower_tracking(dev); 2804 2805 if (priv->bDcut) { 2806 u32 i, TempCCk; 2807 u32 tmpRegA = rtl8192_QueryBBReg(dev, 2808 rOFDM0_XATxIQImbalance, 2809 bMaskDWord); 2810 2811 for (i = 0; i < TxBBGainTableLength; i++) { 2812 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) { 2813 priv->rfa_txpowertrackingindex = (u8)i; 2814 priv->rfa_txpowertrackingindex_real = 2815 (u8)i; 2816 priv->rfa_txpowertracking_default = 2817 priv->rfa_txpowertrackingindex; 2818 break; 2819 } 2820 } 2821 2822 TempCCk = rtl8192_QueryBBReg(dev, 2823 rCCK0_TxFilter1, 2824 bMaskByte2); 2825 2826 for (i = 0; i < CCKTxBBGainTableLength; i++) { 2827 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) { 2828 priv->cck_present_attenuation_20Mdefault = (u8)i; 2829 break; 2830 } 2831 } 2832 priv->cck_present_attenuation_40Mdefault = 0; 2833 priv->cck_present_attenuation_difference = 0; 2834 priv->cck_present_attenuation = 2835 priv->cck_present_attenuation_20Mdefault; 2836 } 2837 } 2838 write_nic_byte(dev, 0x87, 0x0); 2839 2840 return init_status; 2841 } 2842 2843 /* this configures registers for beacon tx and enables it via 2844 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might 2845 * be used to stop beacon transmission 2846 */ 2847 /*************************************************************************** 2848 * -------------------------------NET STUFF--------------------------- 2849 ***************************************************************************/ 2850 2851 static struct net_device_stats *rtl8192_stats(struct net_device *dev) 2852 { 2853 struct r8192_priv *priv = ieee80211_priv(dev); 2854 2855 return &priv->ieee80211->stats; 2856 } 2857 2858 static bool HalTxCheckStuck819xUsb(struct net_device *dev) 2859 { 2860 struct r8192_priv *priv = ieee80211_priv(dev); 2861 u16 RegTxCounter; 2862 bool bStuck = false; 2863 2864 read_nic_word(dev, 0x128, &RegTxCounter); 2865 RT_TRACE(COMP_RESET, 2866 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__, 2867 RegTxCounter, priv->TxCounter); 2868 if (priv->TxCounter == RegTxCounter) 2869 bStuck = true; 2870 2871 priv->TxCounter = RegTxCounter; 2872 2873 return bStuck; 2874 } 2875 2876 /* 2877 * <Assumption: RT_TX_SPINLOCK is acquired.> 2878 * First added: 2006.11.19 by emily 2879 */ 2880 static RESET_TYPE TxCheckStuck(struct net_device *dev) 2881 { 2882 struct r8192_priv *priv = ieee80211_priv(dev); 2883 u8 QueueID; 2884 bool bCheckFwTxCnt = false; 2885 2886 /* Decide such threshold according to current power save mode */ 2887 2888 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) { 2889 if (QueueID == TXCMD_QUEUE) 2890 continue; 2891 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0)) 2892 continue; 2893 2894 bCheckFwTxCnt = true; 2895 } 2896 if (bCheckFwTxCnt) { 2897 if (HalTxCheckStuck819xUsb(dev)) { 2898 RT_TRACE(COMP_RESET, 2899 "%s: Fw indicates no Tx condition!\n", 2900 __func__); 2901 return RESET_TYPE_SILENT; 2902 } 2903 } 2904 return RESET_TYPE_NORESET; 2905 } 2906 2907 static bool HalRxCheckStuck819xUsb(struct net_device *dev) 2908 { 2909 u16 RegRxCounter; 2910 struct r8192_priv *priv = ieee80211_priv(dev); 2911 bool bStuck = false; 2912 static u8 rx_chk_cnt; 2913 2914 read_nic_word(dev, 0x130, &RegRxCounter); 2915 RT_TRACE(COMP_RESET, 2916 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__, 2917 RegRxCounter, priv->RxCounter); 2918 /* If rssi is small, we should check rx for long time because of bad rx. 2919 * or maybe it will continuous silent reset every 2 seconds. 2920 */ 2921 rx_chk_cnt++; 2922 if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) { 2923 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */ 2924 } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) && 2925 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) || 2926 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) { 2927 if (rx_chk_cnt < 2) 2928 return bStuck; 2929 2930 rx_chk_cnt = 0; 2931 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) || 2932 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) && 2933 priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) { 2934 if (rx_chk_cnt < 4) 2935 return bStuck; 2936 2937 rx_chk_cnt = 0; 2938 } else { 2939 if (rx_chk_cnt < 8) 2940 return bStuck; 2941 2942 rx_chk_cnt = 0; 2943 } 2944 2945 if (priv->RxCounter == RegRxCounter) 2946 bStuck = true; 2947 2948 priv->RxCounter = RegRxCounter; 2949 2950 return bStuck; 2951 } 2952 2953 static RESET_TYPE RxCheckStuck(struct net_device *dev) 2954 { 2955 struct r8192_priv *priv = ieee80211_priv(dev); 2956 bool bRxCheck = false; 2957 2958 if (priv->IrpPendingCount > 1) 2959 bRxCheck = true; 2960 2961 if (bRxCheck) { 2962 if (HalRxCheckStuck819xUsb(dev)) { 2963 RT_TRACE(COMP_RESET, "RxStuck Condition\n"); 2964 return RESET_TYPE_SILENT; 2965 } 2966 } 2967 return RESET_TYPE_NORESET; 2968 } 2969 2970 /* 2971 * This function is called by Checkforhang to check whether we should 2972 * ask OS to reset driver 2973 * 2974 * Note:NIC with USB interface sholud not call this function because we 2975 * cannot scan descriptor to judge whether there is tx stuck. 2976 * Note: This function may be required to be rewrite for Vista OS. 2977 * <<<Assumption: Tx spinlock has been acquired >>> 2978 * 2979 * 8185 and 8185b does not implement this function. 2980 */ 2981 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev) 2982 { 2983 struct r8192_priv *priv = ieee80211_priv(dev); 2984 RESET_TYPE TxResetType = RESET_TYPE_NORESET; 2985 RESET_TYPE RxResetType = RESET_TYPE_NORESET; 2986 RT_RF_POWER_STATE rfState; 2987 2988 rfState = priv->ieee80211->eRFPowerState; 2989 2990 TxResetType = TxCheckStuck(dev); 2991 if (rfState != eRfOff || 2992 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) { 2993 /* If driver is in the status of firmware download failure, 2994 * driver skips RF initialization and RF is in turned off 2995 * state. Driver should check whether Rx stuck and do silent 2996 * reset. And if driver is in firmware download failure status, 2997 * driver should initialize RF in the following silent reset 2998 * procedure 2999 * 3000 * Driver should not check RX stuck in IBSS mode because it is 3001 * required to set Check BSSID in order to send beacon, 3002 * however, if check BSSID is set, STA cannot hear any packet 3003 * at all. 3004 */ 3005 RxResetType = RxCheckStuck(dev); 3006 } 3007 if (TxResetType == RESET_TYPE_NORMAL || 3008 RxResetType == RESET_TYPE_NORMAL) { 3009 return RESET_TYPE_NORMAL; 3010 } else if (TxResetType == RESET_TYPE_SILENT || 3011 RxResetType == RESET_TYPE_SILENT) { 3012 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__); 3013 return RESET_TYPE_SILENT; 3014 } else { 3015 return RESET_TYPE_NORESET; 3016 } 3017 } 3018 3019 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv); 3020 static int _rtl8192_up(struct net_device *dev); 3021 static int rtl8192_close(struct net_device *dev); 3022 3023 static void CamRestoreAllEntry(struct net_device *dev) 3024 { 3025 u8 EntryId = 0; 3026 struct r8192_priv *priv = ieee80211_priv(dev); 3027 u8 *MacAddr = priv->ieee80211->current_network.bssid; 3028 3029 static u8 CAM_CONST_ADDR[4][6] = { 3030 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 3031 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, 3032 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, 3033 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} }; 3034 static u8 CAM_CONST_BROAD[] = { 3035 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3036 3037 RT_TRACE(COMP_SEC, "%s:\n", __func__); 3038 3039 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) || 3040 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) { 3041 for (EntryId = 0; EntryId < 4; EntryId++) { 3042 MacAddr = CAM_CONST_ADDR[EntryId]; 3043 setKey(dev, EntryId, EntryId, 3044 priv->ieee80211->pairwise_key_type, 3045 MacAddr, 0, NULL); 3046 } 3047 3048 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) { 3049 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3050 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3051 (u8 *)dev->dev_addr, 0, NULL); 3052 else 3053 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3054 MacAddr, 0, NULL); 3055 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) { 3056 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3057 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3058 (u8 *)dev->dev_addr, 0, NULL); 3059 else 3060 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3061 MacAddr, 0, NULL); 3062 } 3063 3064 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) { 3065 MacAddr = CAM_CONST_BROAD; 3066 for (EntryId = 1; EntryId < 4; EntryId++) { 3067 setKey(dev, EntryId, EntryId, 3068 priv->ieee80211->group_key_type, 3069 MacAddr, 0, NULL); 3070 } 3071 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3072 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3073 CAM_CONST_ADDR[0], 0, NULL); 3074 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) { 3075 MacAddr = CAM_CONST_BROAD; 3076 for (EntryId = 1; EntryId < 4; EntryId++) { 3077 setKey(dev, EntryId, EntryId, 3078 priv->ieee80211->group_key_type, 3079 MacAddr, 0, NULL); 3080 } 3081 3082 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3083 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3084 CAM_CONST_ADDR[0], 0, NULL); 3085 } 3086 } 3087 3088 /* This function is used to fix Tx/Rx stop bug temporarily. 3089 * This function will do "system reset" to NIC when Tx or Rx is stuck. 3090 * The method checking Tx/Rx stuck of this function is supported by FW, 3091 * which reports Tx and Rx counter to register 0x128 and 0x130. 3092 */ 3093 static void rtl819x_ifsilentreset(struct net_device *dev) 3094 { 3095 struct r8192_priv *priv = ieee80211_priv(dev); 3096 u8 reset_times = 0; 3097 int reset_status = 0; 3098 struct ieee80211_device *ieee = priv->ieee80211; 3099 3100 /* If we need to check CCK stop, please uncomment this line. */ 3101 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */ 3102 3103 if (priv->ResetProgress == RESET_TYPE_NORESET) { 3104 RESET_START: 3105 3106 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n"); 3107 3108 /* Set the variable for reset. */ 3109 priv->ResetProgress = RESET_TYPE_SILENT; 3110 mutex_lock(&priv->wx_mutex); 3111 if (priv->up == 0) { 3112 RT_TRACE(COMP_ERR, 3113 "%s():the driver is not up! return\n", 3114 __func__); 3115 mutex_unlock(&priv->wx_mutex); 3116 return; 3117 } 3118 priv->up = 0; 3119 RT_TRACE(COMP_RESET, 3120 "%s():======>start to down the driver\n", 3121 __func__); 3122 3123 rtl8192_rtx_disable(dev); 3124 rtl8192_cancel_deferred_work(priv); 3125 deinit_hal_dm(dev); 3126 del_timer_sync(&priv->watch_dog_timer); 3127 3128 ieee->sync_scan_hurryup = 1; 3129 if (ieee->state == IEEE80211_LINKED) { 3130 mutex_lock(&ieee->wx_mutex); 3131 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n"); 3132 ieee80211_stop_send_beacons(priv->ieee80211); 3133 del_timer_sync(&ieee->associate_timer); 3134 cancel_delayed_work(&ieee->associate_retry_wq); 3135 ieee80211_stop_scan(ieee); 3136 netif_carrier_off(dev); 3137 mutex_unlock(&ieee->wx_mutex); 3138 } else { 3139 netdev_dbg(dev, "ieee->state is NOT LINKED\n"); 3140 ieee80211_softmac_stop_protocol(priv->ieee80211); 3141 } 3142 mutex_unlock(&priv->wx_mutex); 3143 RT_TRACE(COMP_RESET, 3144 "%s():<==========down process is finished\n", 3145 __func__); 3146 RT_TRACE(COMP_RESET, 3147 "%s():===========>start up the driver\n", 3148 __func__); 3149 reset_status = _rtl8192_up(dev); 3150 3151 RT_TRACE(COMP_RESET, 3152 "%s():<===========up process is finished\n", 3153 __func__); 3154 if (reset_status == -EAGAIN) { 3155 if (reset_times < 3) { 3156 reset_times++; 3157 goto RESET_START; 3158 } else { 3159 RT_TRACE(COMP_ERR, 3160 " ERR!!! %s(): Reset Failed!!\n", 3161 __func__); 3162 } 3163 } 3164 ieee->is_silent_reset = 1; 3165 EnableHWSecurityConfig8192(dev); 3166 if (ieee->state == IEEE80211_LINKED && 3167 ieee->iw_mode == IW_MODE_INFRA) { 3168 ieee->set_chan(ieee->dev, 3169 ieee->current_network.channel); 3170 3171 queue_work(ieee->wq, &ieee->associate_complete_wq); 3172 3173 } else if (ieee->state == IEEE80211_LINKED && 3174 ieee->iw_mode == IW_MODE_ADHOC) { 3175 ieee->set_chan(ieee->dev, 3176 ieee->current_network.channel); 3177 ieee->link_change(ieee->dev); 3178 3179 ieee80211_start_send_beacons(ieee); 3180 3181 if (ieee->data_hard_resume) 3182 ieee->data_hard_resume(ieee->dev); 3183 netif_carrier_on(ieee->dev); 3184 } 3185 3186 CamRestoreAllEntry(dev); 3187 3188 priv->ResetProgress = RESET_TYPE_NORESET; 3189 priv->reset_count++; 3190 3191 priv->bForcedSilentReset = false; 3192 priv->bResetInProgress = false; 3193 3194 /* For test --> force write UFWP. */ 3195 write_nic_byte(dev, UFWP, 1); 3196 RT_TRACE(COMP_RESET, 3197 "Reset finished!! ====>[%d]\n", 3198 priv->reset_count); 3199 } 3200 } 3201 3202 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum, 3203 u32 *TotalRxDataNum) 3204 { 3205 u16 SlotIndex; 3206 u16 i; 3207 3208 *TotalRxBcnNum = 0; 3209 *TotalRxDataNum = 0; 3210 3211 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) % 3212 (priv->ieee80211->LinkDetectInfo.SlotNum); 3213 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] = 3214 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod; 3215 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] = 3216 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod; 3217 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) { 3218 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i]; 3219 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i]; 3220 } 3221 } 3222 3223 static void rtl819x_watchdog_wqcallback(struct work_struct *work) 3224 { 3225 struct delayed_work *dwork = to_delayed_work(work); 3226 struct r8192_priv *priv = container_of(dwork, 3227 struct r8192_priv, watch_dog_wq); 3228 struct net_device *dev = priv->ieee80211->dev; 3229 struct ieee80211_device *ieee = priv->ieee80211; 3230 RESET_TYPE ResetType = RESET_TYPE_NORESET; 3231 static u8 check_reset_cnt; 3232 bool bBusyTraffic = false; 3233 u32 TotalRxBcnNum = 0; 3234 u32 TotalRxDataNum = 0; 3235 3236 if (!priv->up) 3237 return; 3238 hal_dm_watchdog(dev); 3239 3240 /* to get busy traffic condition */ 3241 if (ieee->state == IEEE80211_LINKED) { 3242 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 || 3243 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) { 3244 bBusyTraffic = true; 3245 } 3246 ieee->LinkDetectInfo.NumRxOkInPeriod = 0; 3247 ieee->LinkDetectInfo.NumTxOkInPeriod = 0; 3248 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic; 3249 } 3250 /* for AP roaming */ 3251 if (priv->ieee80211->state == IEEE80211_LINKED && 3252 priv->ieee80211->iw_mode == IW_MODE_INFRA) { 3253 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum); 3254 if ((TotalRxBcnNum + TotalRxDataNum) == 0) { 3255 #ifdef TODO 3256 if (rfState == eRfOff) 3257 RT_TRACE(COMP_ERR, "========>%s()\n", __func__); 3258 #endif 3259 netdev_dbg(dev, 3260 "===>%s(): AP is power off, connect another one\n", 3261 __func__); 3262 priv->ieee80211->state = IEEE80211_ASSOCIATING; 3263 notify_wx_assoc_event(priv->ieee80211); 3264 RemovePeerTS(priv->ieee80211, 3265 priv->ieee80211->current_network.bssid); 3266 priv->ieee80211->link_change(dev); 3267 queue_work(priv->ieee80211->wq, 3268 &priv->ieee80211->associate_procedure_wq); 3269 } 3270 } 3271 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0; 3272 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0; 3273 /* check if reset the driver */ 3274 if (check_reset_cnt++ >= 3) { 3275 ResetType = rtl819x_ifcheck_resetornot(dev); 3276 check_reset_cnt = 3; 3277 } 3278 /* This is control by OID set in Pomelo */ 3279 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET && 3280 (priv->bForcedSilentReset || 3281 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) { 3282 RT_TRACE(COMP_RESET, 3283 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n", 3284 __func__, priv->force_reset, priv->ResetProgress, 3285 priv->bForcedSilentReset, 3286 priv->bDisableNormalResetCheck, ResetType); 3287 rtl819x_ifsilentreset(dev); 3288 } 3289 priv->force_reset = false; 3290 priv->bForcedSilentReset = false; 3291 priv->bResetInProgress = false; 3292 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n"); 3293 } 3294 3295 static void watch_dog_timer_callback(struct timer_list *t) 3296 { 3297 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer); 3298 3299 schedule_delayed_work(&priv->watch_dog_wq, 0); 3300 mod_timer(&priv->watch_dog_timer, 3301 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME)); 3302 } 3303 3304 static int _rtl8192_up(struct net_device *dev) 3305 { 3306 struct r8192_priv *priv = ieee80211_priv(dev); 3307 int init_status = 0; 3308 3309 priv->up = 1; 3310 priv->ieee80211->ieee_up = 1; 3311 RT_TRACE(COMP_INIT, "Bringing up iface"); 3312 init_status = rtl8192_adapter_start(dev); 3313 if (!init_status) { 3314 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n", 3315 __func__); 3316 priv->up = priv->ieee80211->ieee_up = 0; 3317 return -EAGAIN; 3318 } 3319 RT_TRACE(COMP_INIT, "start adapter finished\n"); 3320 rtl8192_rx_enable(dev); 3321 if (priv->ieee80211->state != IEEE80211_LINKED) 3322 ieee80211_softmac_start_protocol(priv->ieee80211); 3323 ieee80211_reset_queue(priv->ieee80211); 3324 watch_dog_timer_callback(&priv->watch_dog_timer); 3325 if (!netif_queue_stopped(dev)) 3326 netif_start_queue(dev); 3327 else 3328 netif_wake_queue(dev); 3329 3330 return 0; 3331 } 3332 3333 static int rtl8192_open(struct net_device *dev) 3334 { 3335 struct r8192_priv *priv = ieee80211_priv(dev); 3336 int ret; 3337 3338 mutex_lock(&priv->wx_mutex); 3339 ret = rtl8192_up(dev); 3340 mutex_unlock(&priv->wx_mutex); 3341 return ret; 3342 } 3343 3344 int rtl8192_up(struct net_device *dev) 3345 { 3346 struct r8192_priv *priv = ieee80211_priv(dev); 3347 3348 if (priv->up == 1) 3349 return -1; 3350 3351 return _rtl8192_up(dev); 3352 } 3353 3354 static int rtl8192_close(struct net_device *dev) 3355 { 3356 struct r8192_priv *priv = ieee80211_priv(dev); 3357 int ret; 3358 3359 mutex_lock(&priv->wx_mutex); 3360 3361 ret = rtl8192_down(dev); 3362 3363 mutex_unlock(&priv->wx_mutex); 3364 3365 return ret; 3366 } 3367 3368 int rtl8192_down(struct net_device *dev) 3369 { 3370 struct r8192_priv *priv = ieee80211_priv(dev); 3371 int i; 3372 3373 if (priv->up == 0) 3374 return -1; 3375 3376 priv->up = 0; 3377 priv->ieee80211->ieee_up = 0; 3378 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__); 3379 /* FIXME */ 3380 if (!netif_queue_stopped(dev)) 3381 netif_stop_queue(dev); 3382 3383 rtl8192_rtx_disable(dev); 3384 3385 /* Tx related queue release */ 3386 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3387 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]); 3388 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3389 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]); 3390 3391 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3392 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]); 3393 3394 /* as cancel_delayed_work will del work->timer, so if work is not 3395 * defined as struct delayed_work, it will corrupt 3396 */ 3397 rtl8192_cancel_deferred_work(priv); 3398 deinit_hal_dm(dev); 3399 del_timer_sync(&priv->watch_dog_timer); 3400 3401 ieee80211_softmac_stop_protocol(priv->ieee80211); 3402 memset(&priv->ieee80211->current_network, 0, 3403 offsetof(struct ieee80211_network, list)); 3404 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__); 3405 3406 return 0; 3407 } 3408 3409 void rtl8192_commit(struct net_device *dev) 3410 { 3411 struct r8192_priv *priv = ieee80211_priv(dev); 3412 3413 if (priv->up == 0) 3414 return; 3415 priv->up = 0; 3416 3417 rtl8192_cancel_deferred_work(priv); 3418 del_timer_sync(&priv->watch_dog_timer); 3419 3420 ieee80211_softmac_stop_protocol(priv->ieee80211); 3421 3422 rtl8192_rtx_disable(dev); 3423 _rtl8192_up(dev); 3424 } 3425 3426 static void rtl8192_restart(struct work_struct *work) 3427 { 3428 struct r8192_priv *priv = container_of(work, struct r8192_priv, 3429 reset_wq); 3430 struct net_device *dev = priv->ieee80211->dev; 3431 3432 mutex_lock(&priv->wx_mutex); 3433 3434 rtl8192_commit(dev); 3435 3436 mutex_unlock(&priv->wx_mutex); 3437 } 3438 3439 static void r8192_set_multicast(struct net_device *dev) 3440 { 3441 struct r8192_priv *priv = ieee80211_priv(dev); 3442 short promisc; 3443 3444 /* FIXME FIXME */ 3445 3446 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 3447 3448 if (promisc != priv->promisc) 3449 3450 priv->promisc = promisc; 3451 } 3452 3453 static int r8192_set_mac_adr(struct net_device *dev, void *mac) 3454 { 3455 struct r8192_priv *priv = ieee80211_priv(dev); 3456 struct sockaddr *addr = mac; 3457 3458 mutex_lock(&priv->wx_mutex); 3459 3460 ether_addr_copy(dev->dev_addr, addr->sa_data); 3461 3462 schedule_work(&priv->reset_wq); 3463 mutex_unlock(&priv->wx_mutex); 3464 3465 return 0; 3466 } 3467 3468 /* based on ipw2200 driver */ 3469 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 3470 { 3471 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3472 struct iwreq *wrq = (struct iwreq *)rq; 3473 int ret = -1; 3474 struct ieee80211_device *ieee = priv->ieee80211; 3475 u32 key[4]; 3476 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3477 struct iw_point *p = &wrq->u.data; 3478 struct ieee_param *ipw = NULL; 3479 3480 mutex_lock(&priv->wx_mutex); 3481 3482 if (p->length < sizeof(struct ieee_param) || !p->pointer) { 3483 ret = -EINVAL; 3484 goto out; 3485 } 3486 3487 ipw = memdup_user(p->pointer, p->length); 3488 if (IS_ERR(ipw)) { 3489 ret = PTR_ERR(ipw); 3490 goto out; 3491 } 3492 3493 switch (cmd) { 3494 case RTL_IOCTL_WPA_SUPPLICANT: 3495 /* parse here for HW security */ 3496 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) { 3497 if (ipw->u.crypt.set_tx) { 3498 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3499 ieee->pairwise_key_type = KEY_TYPE_CCMP; 3500 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3501 ieee->pairwise_key_type = KEY_TYPE_TKIP; 3502 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3503 if (ipw->u.crypt.key_len == 13) 3504 ieee->pairwise_key_type = KEY_TYPE_WEP104; 3505 else if (ipw->u.crypt.key_len == 5) 3506 ieee->pairwise_key_type = KEY_TYPE_WEP40; 3507 } else { 3508 ieee->pairwise_key_type = KEY_TYPE_NA; 3509 } 3510 3511 if (ieee->pairwise_key_type) { 3512 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3513 EnableHWSecurityConfig8192(dev); 3514 /* We fill both index entry and 4th 3515 * entry for pairwise key as in IPW 3516 * interface, adhoc will only get here, 3517 * so we need index entry for its 3518 * default key serching! 3519 */ 3520 setKey(dev, 4, ipw->u.crypt.idx, 3521 ieee->pairwise_key_type, 3522 (u8 *)ieee->ap_mac_addr, 3523 0, key); 3524 if (ieee->auth_mode != 2) 3525 setKey(dev, ipw->u.crypt.idx, 3526 ipw->u.crypt.idx, 3527 ieee->pairwise_key_type, 3528 (u8 *)ieee->ap_mac_addr, 3529 0, key); 3530 } 3531 } else { 3532 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3533 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3534 ieee->group_key_type = KEY_TYPE_CCMP; 3535 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3536 ieee->group_key_type = KEY_TYPE_TKIP; 3537 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3538 if (ipw->u.crypt.key_len == 13) 3539 ieee->group_key_type = KEY_TYPE_WEP104; 3540 else if (ipw->u.crypt.key_len == 5) 3541 ieee->group_key_type = KEY_TYPE_WEP40; 3542 } else { 3543 ieee->group_key_type = KEY_TYPE_NA; 3544 } 3545 3546 if (ieee->group_key_type) { 3547 setKey(dev, ipw->u.crypt.idx, 3548 /* KeyIndex */ 3549 ipw->u.crypt.idx, 3550 /* KeyType */ 3551 ieee->group_key_type, 3552 /* MacAddr */ 3553 broadcast_addr, 3554 /* DefaultKey */ 3555 0, 3556 /* KeyContent */ 3557 key); 3558 } 3559 } 3560 } 3561 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, 3562 &wrq->u.data); 3563 break; 3564 3565 default: 3566 ret = -EOPNOTSUPP; 3567 break; 3568 } 3569 kfree(ipw); 3570 ipw = NULL; 3571 out: 3572 mutex_unlock(&priv->wx_mutex); 3573 return ret; 3574 } 3575 3576 static u8 HwRateToMRate90(bool bIsHT, u8 rate) 3577 { 3578 u8 ret_rate = 0xff; 3579 3580 if (!bIsHT) { 3581 switch (rate) { 3582 case DESC90_RATE1M: 3583 ret_rate = MGN_1M; 3584 break; 3585 case DESC90_RATE2M: 3586 ret_rate = MGN_2M; 3587 break; 3588 case DESC90_RATE5_5M: 3589 ret_rate = MGN_5_5M; 3590 break; 3591 case DESC90_RATE11M: 3592 ret_rate = MGN_11M; 3593 break; 3594 case DESC90_RATE6M: 3595 ret_rate = MGN_6M; 3596 break; 3597 case DESC90_RATE9M: 3598 ret_rate = MGN_9M; 3599 break; 3600 case DESC90_RATE12M: 3601 ret_rate = MGN_12M; 3602 break; 3603 case DESC90_RATE18M: 3604 ret_rate = MGN_18M; 3605 break; 3606 case DESC90_RATE24M: 3607 ret_rate = MGN_24M; 3608 break; 3609 case DESC90_RATE36M: 3610 ret_rate = MGN_36M; 3611 break; 3612 case DESC90_RATE48M: 3613 ret_rate = MGN_48M; 3614 break; 3615 case DESC90_RATE54M: 3616 ret_rate = MGN_54M; 3617 break; 3618 3619 default: 3620 ret_rate = 0xff; 3621 RT_TRACE(COMP_RECV, 3622 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3623 __func__, rate, bIsHT); 3624 break; 3625 } 3626 3627 } else { 3628 switch (rate) { 3629 case DESC90_RATEMCS0: 3630 ret_rate = MGN_MCS0; 3631 break; 3632 case DESC90_RATEMCS1: 3633 ret_rate = MGN_MCS1; 3634 break; 3635 case DESC90_RATEMCS2: 3636 ret_rate = MGN_MCS2; 3637 break; 3638 case DESC90_RATEMCS3: 3639 ret_rate = MGN_MCS3; 3640 break; 3641 case DESC90_RATEMCS4: 3642 ret_rate = MGN_MCS4; 3643 break; 3644 case DESC90_RATEMCS5: 3645 ret_rate = MGN_MCS5; 3646 break; 3647 case DESC90_RATEMCS6: 3648 ret_rate = MGN_MCS6; 3649 break; 3650 case DESC90_RATEMCS7: 3651 ret_rate = MGN_MCS7; 3652 break; 3653 case DESC90_RATEMCS8: 3654 ret_rate = MGN_MCS8; 3655 break; 3656 case DESC90_RATEMCS9: 3657 ret_rate = MGN_MCS9; 3658 break; 3659 case DESC90_RATEMCS10: 3660 ret_rate = MGN_MCS10; 3661 break; 3662 case DESC90_RATEMCS11: 3663 ret_rate = MGN_MCS11; 3664 break; 3665 case DESC90_RATEMCS12: 3666 ret_rate = MGN_MCS12; 3667 break; 3668 case DESC90_RATEMCS13: 3669 ret_rate = MGN_MCS13; 3670 break; 3671 case DESC90_RATEMCS14: 3672 ret_rate = MGN_MCS14; 3673 break; 3674 case DESC90_RATEMCS15: 3675 ret_rate = MGN_MCS15; 3676 break; 3677 case DESC90_RATEMCS32: 3678 ret_rate = 0x80 | 0x20; 3679 break; 3680 3681 default: 3682 ret_rate = 0xff; 3683 RT_TRACE(COMP_RECV, 3684 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3685 __func__, rate, bIsHT); 3686 break; 3687 } 3688 } 3689 3690 return ret_rate; 3691 } 3692 3693 /* 3694 * Function: UpdateRxPktTimeStamp 3695 * Overview: Record the TSF time stamp when receiving a packet 3696 * 3697 * Input: 3698 * PADAPTER Adapter 3699 * PRT_RFD pRfd, 3700 * 3701 * Output: 3702 * PRT_RFD pRfd 3703 * (pRfd->Status.TimeStampHigh is updated) 3704 * (pRfd->Status.TimeStampLow is updated) 3705 * Return: 3706 * None 3707 */ 3708 static void UpdateRxPktTimeStamp8190(struct net_device *dev, 3709 struct ieee80211_rx_stats *stats) 3710 { 3711 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3712 3713 if (stats->bIsAMPDU && !stats->bFirstMPDU) { 3714 stats->mac_time[0] = priv->LastRxDescTSFLow; 3715 stats->mac_time[1] = priv->LastRxDescTSFHigh; 3716 } else { 3717 priv->LastRxDescTSFLow = stats->mac_time[0]; 3718 priv->LastRxDescTSFHigh = stats->mac_time[1]; 3719 } 3720 } 3721 3722 /* 0-100 index. */ 3723 static long rtl819x_translate_todbm(u8 signal_strength_index) 3724 { 3725 long signal_power; /* in dBm. */ 3726 3727 /* Translate to dBm (x=0.5y-95). */ 3728 signal_power = (long)((signal_strength_index + 1) >> 1); 3729 signal_power -= 95; 3730 3731 return signal_power; 3732 } 3733 3734 /* We can not declare RSSI/EVM total value of sliding window to 3735 * be a local static. Otherwise, it may increase when we return from S3/S4. The 3736 * value will be kept in memory or disk. Declare the value in the adaptor 3737 * and it will be reinitialized when returned from S3/S4. 3738 */ 3739 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer, 3740 struct ieee80211_rx_stats *pprevious_stats, 3741 struct ieee80211_rx_stats *pcurrent_stats) 3742 { 3743 bool bcheck = false; 3744 u8 rfpath; 3745 u32 nspatial_stream, tmp_val; 3746 static u32 slide_rssi_index, slide_rssi_statistics; 3747 static u32 slide_evm_index, slide_evm_statistics; 3748 static u32 last_rssi, last_evm; 3749 3750 static u32 slide_beacon_adc_pwdb_index; 3751 static u32 slide_beacon_adc_pwdb_statistics; 3752 static u32 last_beacon_adc_pwdb; 3753 3754 struct rtl_80211_hdr_3addr *hdr; 3755 u16 sc; 3756 unsigned int seq; 3757 3758 hdr = (struct rtl_80211_hdr_3addr *)buffer; 3759 sc = le16_to_cpu(hdr->seq_ctl); 3760 seq = WLAN_GET_SEQ_SEQ(sc); 3761 /* to record the sequence number */ 3762 pcurrent_stats->Seq_Num = seq; 3763 3764 /* Check whether we should take the previous packet into accounting */ 3765 if (!pprevious_stats->bIsAMPDU) { 3766 /* if previous packet is not aggregated packet */ 3767 bcheck = true; 3768 } 3769 3770 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 3771 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX; 3772 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index]; 3773 priv->stats.slide_rssi_total -= last_rssi; 3774 } 3775 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength; 3776 3777 priv->stats.slide_signal_strength[slide_rssi_index++] = 3778 pprevious_stats->SignalStrength; 3779 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX) 3780 slide_rssi_index = 0; 3781 3782 /* <1> Showed on UI for user, in dbm */ 3783 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics; 3784 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val); 3785 pcurrent_stats->rssi = priv->stats.signal_strength; 3786 3787 /* If the previous packet does not match the criteria, neglect it */ 3788 if (!pprevious_stats->bPacketMatchBSSID) { 3789 if (!pprevious_stats->bToSelfBA) 3790 return; 3791 } 3792 3793 if (!bcheck) 3794 return; 3795 3796 /* only rtl8190 supported 3797 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats); 3798 */ 3799 3800 /* Check RSSI */ 3801 priv->stats.num_process_phyinfo++; 3802 3803 /* record the general signal strength to the sliding window. */ 3804 3805 /* <2> Showed on UI for engineering 3806 * hardware does not provide rssi information for each rf path in CCK 3807 */ 3808 if (!pprevious_stats->bIsCCK && 3809 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) { 3810 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) { 3811 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, 3812 rfpath)) 3813 continue; 3814 if (priv->stats.rx_rssi_percentage[rfpath] == 0) 3815 priv->stats.rx_rssi_percentage[rfpath] = 3816 pprevious_stats->RxMIMOSignalStrength[rfpath]; 3817 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) { 3818 priv->stats.rx_rssi_percentage[rfpath] = 3819 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + 3820 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); 3821 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1; 3822 } else { 3823 priv->stats.rx_rssi_percentage[rfpath] = 3824 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + 3825 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); 3826 } 3827 RT_TRACE(COMP_DBG, 3828 "priv->stats.rx_rssi_percentage[rfPath] = %d\n", 3829 priv->stats.rx_rssi_percentage[rfpath]); 3830 } 3831 } 3832 3833 /* Check PWDB. */ 3834 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 3835 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 3836 pprevious_stats->RxPWDBAll); 3837 3838 if (pprevious_stats->bPacketBeacon) { 3839 /* record the beacon pwdb to the sliding window. */ 3840 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) { 3841 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX; 3842 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index]; 3843 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb; 3844 } 3845 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll; 3846 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll; 3847 slide_beacon_adc_pwdb_index++; 3848 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX) 3849 slide_beacon_adc_pwdb_index = 0; 3850 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics; 3851 if (pprevious_stats->RxPWDBAll >= 3) 3852 pprevious_stats->RxPWDBAll -= 3; 3853 } 3854 3855 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 3856 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 3857 pprevious_stats->RxPWDBAll); 3858 3859 if (pprevious_stats->bPacketToSelf || 3860 pprevious_stats->bPacketBeacon || 3861 pprevious_stats->bToSelfBA) { 3862 if (priv->undecorated_smoothed_pwdb < 0) 3863 /* initialize */ 3864 priv->undecorated_smoothed_pwdb = 3865 pprevious_stats->RxPWDBAll; 3866 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) { 3867 priv->undecorated_smoothed_pwdb = 3868 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + 3869 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); 3870 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1; 3871 } else { 3872 priv->undecorated_smoothed_pwdb = 3873 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + 3874 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); 3875 } 3876 } 3877 3878 /* Check EVM */ 3879 /* record the general EVM to the sliding window. */ 3880 if (pprevious_stats->SignalQuality) { 3881 if (pprevious_stats->bPacketToSelf || 3882 pprevious_stats->bPacketBeacon || 3883 pprevious_stats->bToSelfBA) { 3884 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 3885 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX; 3886 last_evm = priv->stats.slide_evm[slide_evm_index]; 3887 priv->stats.slide_evm_total -= last_evm; 3888 } 3889 3890 priv->stats.slide_evm_total += 3891 pprevious_stats->SignalQuality; 3892 3893 priv->stats.slide_evm[slide_evm_index++] = 3894 pprevious_stats->SignalQuality; 3895 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX) 3896 slide_evm_index = 0; 3897 3898 /* <1> Showed on UI for user, in percentage. */ 3899 tmp_val = priv->stats.slide_evm_total / 3900 slide_evm_statistics; 3901 priv->stats.signal_quality = tmp_val; 3902 /* Showed on UI for user in Windows Vista, 3903 * for Link quality. 3904 */ 3905 priv->stats.last_signal_strength_inpercent = tmp_val; 3906 } 3907 3908 /* <2> Showed on UI for engineering */ 3909 if (pprevious_stats->bPacketToSelf || 3910 pprevious_stats->bPacketBeacon || 3911 pprevious_stats->bToSelfBA) { 3912 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */ 3913 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) { 3914 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */ 3915 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream]; 3916 priv->stats.rx_evm_percentage[nspatial_stream] = 3917 ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) + 3918 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR); 3919 } 3920 } 3921 } 3922 } 3923 } 3924 3925 /*----------------------------------------------------------------------------- 3926 * Function: rtl819x_query_rxpwrpercentage() 3927 * 3928 * Overview: 3929 * 3930 * Input: char antpower 3931 * 3932 * Output: NONE 3933 * 3934 * Return: 0-100 percentage 3935 *--------------------------------------------------------------------------- 3936 */ 3937 static u8 rtl819x_query_rxpwrpercentage(s8 antpower) 3938 { 3939 if ((antpower <= -100) || (antpower >= 20)) 3940 return 0; 3941 else if (antpower >= 0) 3942 return 100; 3943 else 3944 return 100 + antpower; 3945 3946 } /* QueryRxPwrPercentage */ 3947 3948 static u8 rtl819x_evm_dbtopercentage(s8 value) 3949 { 3950 s8 ret_val = clamp(-value, 0, 33) * 3; 3951 3952 if (ret_val == 99) 3953 ret_val = 100; 3954 3955 return ret_val; 3956 } 3957 3958 /* We want good-looking for signal strength/quality */ 3959 static long rtl819x_signal_scale_mapping(long currsig) 3960 { 3961 long retsig; 3962 3963 /* Step 1. Scale mapping. */ 3964 if (currsig >= 61 && currsig <= 100) 3965 retsig = 90 + ((currsig - 60) / 4); 3966 else if (currsig >= 41 && currsig <= 60) 3967 retsig = 78 + ((currsig - 40) / 2); 3968 else if (currsig >= 31 && currsig <= 40) 3969 retsig = 66 + (currsig - 30); 3970 else if (currsig >= 21 && currsig <= 30) 3971 retsig = 54 + (currsig - 20); 3972 else if (currsig >= 5 && currsig <= 20) 3973 retsig = 42 + (((currsig - 5) * 2) / 3); 3974 else if (currsig == 4) 3975 retsig = 36; 3976 else if (currsig == 3) 3977 retsig = 27; 3978 else if (currsig == 2) 3979 retsig = 18; 3980 else if (currsig == 1) 3981 retsig = 9; 3982 else 3983 retsig = currsig; 3984 3985 return retsig; 3986 } 3987 3988 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo) 3989 { 3990 if (pdrvinfo->RxHT) 3991 return false; 3992 3993 switch (pdrvinfo->RxRate) { 3994 case DESC90_RATE1M: 3995 case DESC90_RATE2M: 3996 case DESC90_RATE5_5M: 3997 case DESC90_RATE11M: 3998 return true; 3999 default: 4000 return false; 4001 } 4002 } 4003 4004 static void rtl8192_query_rxphystatus(struct r8192_priv *priv, 4005 struct ieee80211_rx_stats *pstats, 4006 struct rx_drvinfo_819x_usb *pdrvinfo, 4007 struct ieee80211_rx_stats *precord_stats, 4008 bool bpacket_match_bssid, 4009 bool bpacket_toself, 4010 bool bPacketBeacon, 4011 bool bToSelfBA) 4012 { 4013 phy_sts_ofdm_819xusb_t *pofdm_buf; 4014 phy_sts_cck_819xusb_t *pcck_buf; 4015 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc; 4016 u8 *prxpkt; 4017 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg; 4018 s8 rx_pwr[4], rx_pwr_all = 0; 4019 s8 rx_snrX, rx_evmX; 4020 u8 evm, pwdb_all; 4021 u32 RSSI, total_rssi = 0; 4022 u8 is_cck_rate = 0; 4023 u8 rf_rx_num = 0; 4024 u8 sq; 4025 4026 priv->stats.numqry_phystatus++; 4027 4028 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo); 4029 4030 /* Record it for next packet processing */ 4031 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats)); 4032 pstats->bPacketMatchBSSID = 4033 precord_stats->bPacketMatchBSSID = bpacket_match_bssid; 4034 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself; 4035 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate; 4036 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon; 4037 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA; 4038 4039 prxpkt = (u8 *)pdrvinfo; 4040 4041 /* Move pointer to the 16th bytes. Phy status start address. */ 4042 prxpkt += sizeof(struct rx_drvinfo_819x_usb); 4043 4044 /* Initial the cck and ofdm buffer pointer */ 4045 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt; 4046 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt; 4047 4048 pstats->RxMIMOSignalQuality[0] = -1; 4049 pstats->RxMIMOSignalQuality[1] = -1; 4050 precord_stats->RxMIMOSignalQuality[0] = -1; 4051 precord_stats->RxMIMOSignalQuality[1] = -1; 4052 4053 if (is_cck_rate) { 4054 /* (1)Hardware does not provide RSSI for CCK */ 4055 4056 /* (2)PWDB, Average PWDB calculated by hardware 4057 * (for rate adaptive) 4058 */ 4059 u8 report; 4060 4061 priv->stats.numqry_phystatusCCK++; 4062 4063 if (!priv->bCckHighPower) { 4064 report = pcck_buf->cck_agc_rpt & 0xc0; 4065 report >>= 6; 4066 switch (report) { 4067 case 0x3: 4068 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e); 4069 break; 4070 case 0x2: 4071 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e); 4072 break; 4073 case 0x1: 4074 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e); 4075 break; 4076 case 0x0: 4077 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e); 4078 break; 4079 } 4080 } else { 4081 report = pcck_buf->cck_agc_rpt & 0x60; 4082 report >>= 5; 4083 switch (report) { 4084 case 0x3: 4085 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4086 break; 4087 case 0x2: 4088 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4089 break; 4090 case 0x1: 4091 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4092 break; 4093 case 0x0: 4094 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4095 break; 4096 } 4097 } 4098 4099 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4100 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4101 pstats->RecvSignalPower = pwdb_all; 4102 4103 /* (3) Get Signal Quality (EVM) */ 4104 4105 if (pstats->RxPWDBAll > 40) { 4106 sq = 100; 4107 } else { 4108 sq = pcck_buf->sq_rpt; 4109 4110 if (pcck_buf->sq_rpt > 64) 4111 sq = 0; 4112 else if (pcck_buf->sq_rpt < 20) 4113 sq = 100; 4114 else 4115 sq = ((64 - sq) * 100) / 44; 4116 } 4117 pstats->SignalQuality = precord_stats->SignalQuality = sq; 4118 pstats->RxMIMOSignalQuality[0] = 4119 precord_stats->RxMIMOSignalQuality[0] = sq; 4120 pstats->RxMIMOSignalQuality[1] = 4121 precord_stats->RxMIMOSignalQuality[1] = -1; 4122 4123 } else { 4124 priv->stats.numqry_phystatusHT++; 4125 4126 /* (1)Get RSSI for HT rate */ 4127 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) { 4128 /* We will judge RF RX path now. */ 4129 if (priv->brfpath_rxenable[i]) 4130 rf_rx_num++; 4131 else 4132 continue; 4133 4134 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, i)) 4135 continue; 4136 4137 rx_pwr[i] = 4138 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106; 4139 4140 /* Get Rx snr value in DB */ 4141 tmp_rxsnr = pofdm_buf->rxsnr_X[i]; 4142 rx_snrX = (s8)(tmp_rxsnr); 4143 rx_snrX /= 2; 4144 priv->stats.rxSNRdB[i] = (long)rx_snrX; 4145 4146 /* Translate DBM to percentage. */ 4147 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]); 4148 total_rssi += RSSI; 4149 4150 /* Record Signal Strength for next packet */ 4151 pstats->RxMIMOSignalStrength[i] = (u8)RSSI; 4152 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI; 4153 } 4154 4155 /* (2)PWDB, Average PWDB calculated by hardware 4156 * (for rate adaptive) 4157 */ 4158 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106; 4159 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4160 4161 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4162 pstats->RxPower = precord_stats->RxPower = rx_pwr_all; 4163 4164 /* (3)EVM of HT rate */ 4165 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 && 4166 pdrvinfo->RxRate <= DESC90_RATEMCS15) 4167 /* both spatial stream make sense */ 4168 max_spatial_stream = 2; 4169 else 4170 /* only spatial stream 1 makes sense */ 4171 max_spatial_stream = 1; 4172 4173 for (i = 0; i < max_spatial_stream; i++) { 4174 tmp_rxevm = pofdm_buf->rxevm_X[i]; 4175 rx_evmX = (s8)(tmp_rxevm); 4176 4177 /* Do not use shift operation like "rx_evmX >>= 1" 4178 * because the compiler of free build environment will 4179 * set the most significant bit to "zero" when doing 4180 * shifting operation which may change a negative value 4181 * to positive one, then the dbm value (which is 4182 * supposed to be negative) is not correct anymore. 4183 */ 4184 rx_evmX /= 2; /* dbm */ 4185 4186 evm = rtl819x_evm_dbtopercentage(rx_evmX); 4187 if (i == 0) 4188 /* Fill value in RFD, Get the first spatial 4189 * stream only 4190 */ 4191 pstats->SignalQuality = 4192 precord_stats->SignalQuality = 4193 evm & 0xff; 4194 pstats->RxMIMOSignalQuality[i] = 4195 precord_stats->RxMIMOSignalQuality[i] = 4196 evm & 0xff; 4197 } 4198 4199 /* record rx statistics for debug */ 4200 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg; 4201 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *) 4202 &rxsc_sgien_exflg; 4203 if (pdrvinfo->BW) /* 40M channel */ 4204 priv->stats.received_bwtype[1 + prxsc->rxsc]++; 4205 else /* 20M channel */ 4206 priv->stats.received_bwtype[0]++; 4207 } 4208 4209 /* UI BSS List signal strength(in percentage), make it good looking, 4210 * from 0~100. It is assigned to the BSS List in 4211 * GetValueFromBeaconOrProbeRsp(). 4212 */ 4213 if (is_cck_rate) { 4214 pstats->SignalStrength = 4215 precord_stats->SignalStrength = 4216 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all)); 4217 } else { 4218 /* We can judge RX path number now. */ 4219 if (rf_rx_num != 0) { 4220 pstats->SignalStrength = 4221 precord_stats->SignalStrength = 4222 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num))); 4223 } 4224 } 4225 } /* QueryRxPhyStatus8190Pci */ 4226 4227 static void rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats *psrc_stats, 4228 struct ieee80211_rx_stats *ptarget_stats) 4229 { 4230 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU; 4231 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU; 4232 ptarget_stats->Seq_Num = psrc_stats->Seq_Num; 4233 } 4234 4235 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb, 4236 struct ieee80211_rx_stats *pstats, 4237 struct rx_drvinfo_819x_usb *pdrvinfo) 4238 { 4239 /* TODO: We must only check packet for current MAC address. 4240 * Not finish 4241 */ 4242 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4243 struct net_device *dev = info->dev; 4244 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4245 bool bpacket_match_bssid, bpacket_toself; 4246 bool bPacketBeacon = false, bToSelfBA = false; 4247 static struct ieee80211_rx_stats previous_stats; 4248 struct rtl_80211_hdr_3addr *hdr; 4249 u16 fc, type; 4250 4251 /* Get Signal Quality for only RX data queue (but not command queue) */ 4252 4253 u8 *tmp_buf; 4254 u8 *praddr; 4255 4256 /* Get MAC frame start address. */ 4257 tmp_buf = (u8 *)skb->data; 4258 4259 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf; 4260 fc = le16_to_cpu(hdr->frame_ctl); 4261 type = WLAN_FC_GET_TYPE(fc); 4262 praddr = hdr->addr1; 4263 4264 /* Check if the received packet is acceptable. */ 4265 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) && 4266 (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3)) 4267 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV); 4268 bpacket_toself = bpacket_match_bssid & 4269 (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr)); 4270 4271 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON) 4272 bPacketBeacon = true; 4273 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) { 4274 if ((ether_addr_equal(praddr, dev->dev_addr))) 4275 bToSelfBA = true; 4276 } 4277 4278 if (bpacket_match_bssid) 4279 priv->stats.numpacket_matchbssid++; 4280 if (bpacket_toself) 4281 priv->stats.numpacket_toself++; 4282 /* Process PHY information for previous packet (RSSI/PWDB/EVM) 4283 * Because phy information is contained in the last packet of AMPDU 4284 * only, so driver should process phy information of previous packet 4285 */ 4286 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats); 4287 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats, 4288 bpacket_match_bssid, bpacket_toself, 4289 bPacketBeacon, bToSelfBA); 4290 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats); 4291 } 4292 4293 /* 4294 * Function: UpdateReceivedRateHistogramStatistics 4295 * Overview: Record the received data rate 4296 * 4297 * Input: 4298 * struct net_device *dev 4299 * struct ieee80211_rx_stats *stats 4300 * 4301 * Output: 4302 * 4303 * (priv->stats.ReceivedRateHistogram[] is updated) 4304 * Return: 4305 * None 4306 */ 4307 static void 4308 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev, 4309 struct ieee80211_rx_stats *stats) 4310 { 4311 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4312 /* 0: Total, 1:OK, 2:CRC, 3:ICV */ 4313 u32 rcvType = 1; 4314 u32 rateIndex; 4315 /* 1: short preamble/GI, 0: long preamble/GI */ 4316 u32 preamble_guardinterval; 4317 4318 if (stats->bCRC) 4319 rcvType = 2; 4320 else if (stats->bICV) 4321 rcvType = 3; 4322 4323 if (stats->bShortPreamble) 4324 preamble_guardinterval = 1; /* short */ 4325 else 4326 preamble_guardinterval = 0; /* long */ 4327 4328 switch (stats->rate) { 4329 /* CCK rate */ 4330 case MGN_1M: 4331 rateIndex = 0; 4332 break; 4333 case MGN_2M: 4334 rateIndex = 1; 4335 break; 4336 case MGN_5_5M: 4337 rateIndex = 2; 4338 break; 4339 case MGN_11M: 4340 rateIndex = 3; 4341 break; 4342 /* Legacy OFDM rate */ 4343 case MGN_6M: 4344 rateIndex = 4; 4345 break; 4346 case MGN_9M: 4347 rateIndex = 5; 4348 break; 4349 case MGN_12M: 4350 rateIndex = 6; 4351 break; 4352 case MGN_18M: 4353 rateIndex = 7; 4354 break; 4355 case MGN_24M: 4356 rateIndex = 8; 4357 break; 4358 case MGN_36M: 4359 rateIndex = 9; 4360 break; 4361 case MGN_48M: 4362 rateIndex = 10; 4363 break; 4364 case MGN_54M: 4365 rateIndex = 11; 4366 break; 4367 /* 11n High throughput rate */ 4368 case MGN_MCS0: 4369 rateIndex = 12; 4370 break; 4371 case MGN_MCS1: 4372 rateIndex = 13; 4373 break; 4374 case MGN_MCS2: 4375 rateIndex = 14; 4376 break; 4377 case MGN_MCS3: 4378 rateIndex = 15; 4379 break; 4380 case MGN_MCS4: 4381 rateIndex = 16; 4382 break; 4383 case MGN_MCS5: 4384 rateIndex = 17; 4385 break; 4386 case MGN_MCS6: 4387 rateIndex = 18; 4388 break; 4389 case MGN_MCS7: 4390 rateIndex = 19; 4391 break; 4392 case MGN_MCS8: 4393 rateIndex = 20; 4394 break; 4395 case MGN_MCS9: 4396 rateIndex = 21; 4397 break; 4398 case MGN_MCS10: 4399 rateIndex = 22; 4400 break; 4401 case MGN_MCS11: 4402 rateIndex = 23; 4403 break; 4404 case MGN_MCS12: 4405 rateIndex = 24; 4406 break; 4407 case MGN_MCS13: 4408 rateIndex = 25; 4409 break; 4410 case MGN_MCS14: 4411 rateIndex = 26; 4412 break; 4413 case MGN_MCS15: 4414 rateIndex = 27; 4415 break; 4416 default: 4417 rateIndex = 28; 4418 break; 4419 } 4420 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++; 4421 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */ 4422 priv->stats.received_rate_histogram[rcvType][rateIndex]++; 4423 } 4424 4425 static void query_rxdesc_status(struct sk_buff *skb, 4426 struct ieee80211_rx_stats *stats, 4427 bool bIsRxAggrSubframe) 4428 { 4429 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4430 struct net_device *dev = info->dev; 4431 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4432 struct rx_drvinfo_819x_usb *driver_info = NULL; 4433 4434 /* Get Rx Descriptor Information */ 4435 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; 4436 4437 stats->Length = desc->Length; 4438 stats->RxDrvInfoSize = desc->RxDrvInfoSize; 4439 stats->RxBufShift = 0; 4440 stats->bICV = desc->ICV; 4441 stats->bCRC = desc->CRC32; 4442 stats->bHwError = stats->bCRC | stats->bICV; 4443 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */ 4444 stats->Decrypted = !desc->SWDec; 4445 4446 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) && 4447 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP)) 4448 stats->bHwError = false; 4449 else 4450 stats->bHwError = stats->bCRC | stats->bICV; 4451 4452 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE) 4453 stats->bHwError |= 1; 4454 /* Get Driver Info */ 4455 /* TODO: Need to verify it on FGPA platform 4456 * Driver info are written to the RxBuffer following rx desc 4457 */ 4458 if (stats->RxDrvInfoSize != 0) { 4459 driver_info = (struct rx_drvinfo_819x_usb *)(skb->data 4460 + sizeof(struct rx_desc_819x_usb) 4461 + stats->RxBufShift 4462 ); 4463 /* unit: 0.5M */ 4464 /* TODO */ 4465 if (!stats->bHwError) { 4466 u8 ret_rate; 4467 4468 ret_rate = HwRateToMRate90(driver_info->RxHT, 4469 driver_info->RxRate); 4470 if (ret_rate == 0xff) { 4471 /* Abnormal Case: Receive CRC OK packet with Rx 4472 * descriptor indicating non supported rate. 4473 * Special Error Handling here 4474 */ 4475 4476 stats->bHwError = 1; 4477 /* Set 1M rate by default */ 4478 stats->rate = MGN_1M; 4479 } else { 4480 stats->rate = ret_rate; 4481 } 4482 } else { 4483 stats->rate = 0x02; 4484 } 4485 4486 stats->bShortPreamble = driver_info->SPLCP; 4487 4488 UpdateReceivedRateHistogramStatistics8190(dev, stats); 4489 4490 stats->bIsAMPDU = (driver_info->PartAggr == 1); 4491 stats->bFirstMPDU = (driver_info->PartAggr == 1) && 4492 (driver_info->FirstAGGR == 1); 4493 stats->TimeStampLow = driver_info->TSFL; 4494 4495 UpdateRxPktTimeStamp8190(dev, stats); 4496 4497 /* Rx A-MPDU */ 4498 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1) 4499 RT_TRACE(COMP_RXDESC, 4500 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n", 4501 driver_info->FirstAGGR, driver_info->PartAggr); 4502 } 4503 4504 skb_pull(skb, sizeof(struct rx_desc_819x_usb)); 4505 /* Get Total offset of MPDU Frame Body */ 4506 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) { 4507 stats->bShift = 1; 4508 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize); 4509 } 4510 4511 if (driver_info) { 4512 stats->RxIs40MHzPacket = driver_info->BW; 4513 TranslateRxSignalStuff819xUsb(skb, stats, driver_info); 4514 } 4515 } 4516 4517 static void rtl8192_rx_nomal(struct sk_buff *skb) 4518 { 4519 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4520 struct net_device *dev = info->dev; 4521 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4522 struct ieee80211_rx_stats stats = { 4523 .signal = 0, 4524 .noise = 0x100 - 98, 4525 .rate = 0, 4526 .freq = IEEE80211_24GHZ_BAND, 4527 }; 4528 u32 rx_pkt_len = 0; 4529 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL; 4530 bool unicast_packet = false; 4531 4532 /* 20 is for ps-poll */ 4533 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4534 /* first packet should not contain Rx aggregation header */ 4535 query_rxdesc_status(skb, &stats, false); 4536 /* TODO */ 4537 /* hardware related info */ 4538 /* Process the MPDU received */ 4539 skb_trim(skb, skb->len - 4/*sCrcLng*/); 4540 4541 rx_pkt_len = skb->len; 4542 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data; 4543 unicast_packet = false; 4544 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) { 4545 /* TODO */ 4546 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) { 4547 /* TODO */ 4548 } else { 4549 /* unicast packet */ 4550 unicast_packet = true; 4551 } 4552 4553 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) { 4554 dev_kfree_skb_any(skb); 4555 } else { 4556 priv->stats.rxoktotal++; 4557 if (unicast_packet) 4558 priv->stats.rxbytesunicast += rx_pkt_len; 4559 } 4560 } else { 4561 priv->stats.rxurberr++; 4562 netdev_dbg(dev, "actual_length: %d\n", skb->len); 4563 dev_kfree_skb_any(skb); 4564 } 4565 } 4566 4567 static void rtl819xusb_process_received_packet(struct net_device *dev, 4568 struct ieee80211_rx_stats *pstats) 4569 { 4570 struct r8192_priv *priv = ieee80211_priv(dev); 4571 4572 /* Get shifted bytes of Starting address of 802.11 header. */ 4573 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats); 4574 #ifdef TODO /* about HCT */ 4575 if (!Adapter->bInHctTest) 4576 CountRxErrStatistics(Adapter, pRfd); 4577 #endif 4578 #ifdef ENABLE_PS /* for adding ps function in future */ 4579 RT_RF_POWER_STATE rtState; 4580 /* When RF is off, we should not count the packet for hw/sw synchronize 4581 * reason, ie. there may be a duration while sw switch is changed and 4582 * hw switch is being changed. 4583 */ 4584 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE, 4585 (u8 *)(&rtState)); 4586 if (rtState == eRfOff) 4587 return; 4588 #endif 4589 priv->stats.rxframgment++; 4590 4591 #ifdef TODO 4592 RmMonitorSignalStrength(Adapter, pRfd); 4593 #endif 4594 /* We have to release RFD and return if rx pkt is cmd pkt. */ 4595 if (rtl819xusb_rx_command_packet(dev, pstats)) 4596 return; 4597 4598 #ifdef SW_CRC_CHECK 4599 SwCrcCheck(); 4600 #endif 4601 } 4602 4603 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb, 4604 struct ieee80211_rx_stats *stats) 4605 { 4606 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; 4607 4608 /* Get Rx Descriptor Information */ 4609 stats->virtual_address = (u8 *)skb->data; 4610 stats->Length = desc->Length; 4611 stats->RxDrvInfoSize = 0; 4612 stats->RxBufShift = 0; 4613 stats->packetlength = stats->Length - scrclng; 4614 stats->fraglength = stats->packetlength; 4615 stats->fragoffset = 0; 4616 stats->ntotalfrag = 1; 4617 } 4618 4619 static void rtl8192_rx_cmd(struct sk_buff *skb) 4620 { 4621 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4622 struct net_device *dev = info->dev; 4623 /* TODO */ 4624 struct ieee80211_rx_stats stats = { 4625 .signal = 0, 4626 .noise = 0x100 - 98, 4627 .rate = 0, 4628 .freq = IEEE80211_24GHZ_BAND, 4629 }; 4630 4631 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4632 query_rx_cmdpkt_desc_status(skb, &stats); 4633 /* prfd->queue_id = 1; */ 4634 4635 /* Process the command packet received. */ 4636 4637 rtl819xusb_process_received_packet(dev, &stats); 4638 4639 dev_kfree_skb_any(skb); 4640 } 4641 } 4642 4643 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t) 4644 { 4645 struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet); 4646 struct sk_buff *skb; 4647 struct rtl8192_rx_info *info; 4648 4649 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) { 4650 info = (struct rtl8192_rx_info *)skb->cb; 4651 switch (info->out_pipe) { 4652 /* Nomal packet pipe */ 4653 case 3: 4654 priv->IrpPendingCount--; 4655 rtl8192_rx_nomal(skb); 4656 break; 4657 4658 /* Command packet pipe */ 4659 case 9: 4660 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n", 4661 info->out_pipe); 4662 4663 rtl8192_rx_cmd(skb); 4664 break; 4665 4666 default: /* should never get here! */ 4667 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n", 4668 info->out_pipe); 4669 dev_kfree_skb(skb); 4670 break; 4671 } 4672 } 4673 } 4674 4675 static const struct net_device_ops rtl8192_netdev_ops = { 4676 .ndo_open = rtl8192_open, 4677 .ndo_stop = rtl8192_close, 4678 .ndo_get_stats = rtl8192_stats, 4679 .ndo_tx_timeout = tx_timeout, 4680 .ndo_do_ioctl = rtl8192_ioctl, 4681 .ndo_set_rx_mode = r8192_set_multicast, 4682 .ndo_set_mac_address = r8192_set_mac_adr, 4683 .ndo_validate_addr = eth_validate_addr, 4684 .ndo_start_xmit = ieee80211_xmit, 4685 }; 4686 4687 /**************************************************************************** 4688 * ---------------------------- USB_STUFF--------------------------- 4689 *****************************************************************************/ 4690 4691 static int rtl8192_usb_probe(struct usb_interface *intf, 4692 const struct usb_device_id *id) 4693 { 4694 struct net_device *dev = NULL; 4695 struct r8192_priv *priv = NULL; 4696 struct usb_device *udev = interface_to_usbdev(intf); 4697 int ret; 4698 4699 RT_TRACE(COMP_INIT, "Oops: i'm coming\n"); 4700 4701 dev = alloc_ieee80211(sizeof(struct r8192_priv)); 4702 if (!dev) 4703 return -ENOMEM; 4704 4705 usb_set_intfdata(intf, dev); 4706 SET_NETDEV_DEV(dev, &intf->dev); 4707 priv = ieee80211_priv(dev); 4708 priv->ieee80211 = netdev_priv(dev); 4709 priv->udev = udev; 4710 4711 dev->netdev_ops = &rtl8192_netdev_ops; 4712 4713 dev->wireless_handlers = &r8192_wx_handlers_def; 4714 4715 dev->type = ARPHRD_ETHER; 4716 4717 dev->watchdog_timeo = HZ * 3; 4718 4719 if (dev_alloc_name(dev, ifname) < 0) { 4720 RT_TRACE(COMP_INIT, 4721 "Oops: devname already taken! Trying wlan%%d...\n"); 4722 ifname = "wlan%d"; 4723 dev_alloc_name(dev, ifname); 4724 } 4725 4726 RT_TRACE(COMP_INIT, "Driver probe completed1\n"); 4727 if (rtl8192_init(dev) != 0) { 4728 RT_TRACE(COMP_ERR, "Initialization failed"); 4729 ret = -ENODEV; 4730 goto fail; 4731 } 4732 netif_carrier_off(dev); 4733 netif_stop_queue(dev); 4734 4735 ret = register_netdev(dev); 4736 if (ret) 4737 goto fail2; 4738 4739 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name); 4740 rtl8192_proc_init_one(dev); 4741 4742 RT_TRACE(COMP_INIT, "Driver probe completed\n"); 4743 return 0; 4744 4745 fail2: 4746 rtl8192_down(dev); 4747 fail: 4748 kfree(priv->pFirmware); 4749 priv->pFirmware = NULL; 4750 rtl8192_usb_deleteendpoints(dev); 4751 msleep(10); 4752 free_ieee80211(dev); 4753 4754 RT_TRACE(COMP_ERR, "wlan driver load failed\n"); 4755 return ret; 4756 } 4757 4758 /* detach all the work and timer structure declared or inititialize 4759 * in r8192U_init function. 4760 */ 4761 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv) 4762 { 4763 cancel_work_sync(&priv->reset_wq); 4764 cancel_delayed_work(&priv->watch_dog_wq); 4765 cancel_delayed_work(&priv->update_beacon_wq); 4766 cancel_work_sync(&priv->qos_activate); 4767 } 4768 4769 static void rtl8192_usb_disconnect(struct usb_interface *intf) 4770 { 4771 struct net_device *dev = usb_get_intfdata(intf); 4772 struct r8192_priv *priv = ieee80211_priv(dev); 4773 4774 unregister_netdev(dev); 4775 4776 RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n"); 4777 rtl8192_proc_remove_one(dev); 4778 4779 rtl8192_down(dev); 4780 kfree(priv->pFirmware); 4781 priv->pFirmware = NULL; 4782 rtl8192_usb_deleteendpoints(dev); 4783 usleep_range(10000, 11000); 4784 free_ieee80211(dev); 4785 4786 RT_TRACE(COMP_DOWN, "wlan driver removed\n"); 4787 } 4788 4789 static int __init rtl8192_usb_module_init(void) 4790 { 4791 int ret; 4792 4793 #ifdef CONFIG_IEEE80211_DEBUG 4794 ret = ieee80211_debug_init(); 4795 if (ret) { 4796 pr_err("ieee80211_debug_init() failed %d\n", ret); 4797 return ret; 4798 } 4799 #endif 4800 ret = ieee80211_crypto_init(); 4801 if (ret) { 4802 pr_err("ieee80211_crypto_init() failed %d\n", ret); 4803 return ret; 4804 } 4805 4806 ret = ieee80211_crypto_tkip_init(); 4807 if (ret) { 4808 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret); 4809 return ret; 4810 } 4811 4812 ret = ieee80211_crypto_ccmp_init(); 4813 if (ret) { 4814 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret); 4815 return ret; 4816 } 4817 4818 ret = ieee80211_crypto_wep_init(); 4819 if (ret) { 4820 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret); 4821 return ret; 4822 } 4823 4824 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n"); 4825 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n"); 4826 RT_TRACE(COMP_INIT, "Initializing module"); 4827 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT); 4828 rtl8192_proc_module_init(); 4829 return usb_register(&rtl8192_usb_driver); 4830 } 4831 4832 static void __exit rtl8192_usb_module_exit(void) 4833 { 4834 usb_deregister(&rtl8192_usb_driver); 4835 4836 RT_TRACE(COMP_DOWN, "Exiting"); 4837 } 4838 4839 void EnableHWSecurityConfig8192(struct net_device *dev) 4840 { 4841 u8 SECR_value = 0x0; 4842 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4843 struct ieee80211_device *ieee = priv->ieee80211; 4844 4845 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable; 4846 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) { 4847 SECR_value |= SCR_RxUseDK; 4848 SECR_value |= SCR_TxUseDK; 4849 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) { 4850 SECR_value |= SCR_RxUseDK; 4851 SECR_value |= SCR_TxUseDK; 4852 } 4853 /* add HWSec active enable here. 4854 * default using hwsec. when peer AP is in N mode only and 4855 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates 4856 * it), use software security. when peer AP is in b,g,n mode mixed and 4857 * pairwise_key_type is none_aes, use g mode hw security. 4858 */ 4859 4860 ieee->hwsec_active = 1; 4861 4862 /* add hwsec_support flag to totol control hw_sec on/off */ 4863 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) { 4864 ieee->hwsec_active = 0; 4865 SECR_value &= ~SCR_RxDecEnable; 4866 } 4867 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n", 4868 __func__, ieee->hwsec_active, ieee->pairwise_key_type, 4869 SECR_value); 4870 write_nic_byte(dev, SECR, SECR_value); 4871 } 4872 4873 void setKey(struct net_device *dev, u8 entryno, u8 keyindex, u16 keytype, 4874 u8 *macaddr, u8 defaultkey, u32 *keycontent) 4875 { 4876 u32 target_command = 0; 4877 u32 target_content = 0; 4878 u16 us_config = 0; 4879 u8 i; 4880 4881 if (entryno >= TOTAL_CAM_ENTRY) 4882 RT_TRACE(COMP_ERR, "cam entry exceeds in %s\n", __func__); 4883 4884 RT_TRACE(COMP_SEC, 4885 "====>to %s, dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n", 4886 __func__, dev, entryno, keyindex, keytype, macaddr); 4887 4888 if (defaultkey) 4889 us_config |= BIT(15) | (keytype << 2); 4890 else 4891 us_config |= BIT(15) | (keytype << 2) | keyindex; 4892 4893 for (i = 0; i < CAM_CONTENT_COUNT; i++) { 4894 target_command = i + CAM_CONTENT_COUNT * entryno; 4895 target_command |= BIT(31) | BIT(16); 4896 4897 if (i == 0) { /* MAC|Config */ 4898 target_content = (u32)(*(macaddr + 0)) << 16 | 4899 (u32)(*(macaddr + 1)) << 24 | 4900 (u32)us_config; 4901 4902 write_nic_dword(dev, WCAMI, target_content); 4903 write_nic_dword(dev, RWCAM, target_command); 4904 } else if (i == 1) { /* MAC */ 4905 target_content = (u32)(*(macaddr + 2)) | 4906 (u32)(*(macaddr + 3)) << 8 | 4907 (u32)(*(macaddr + 4)) << 16 | 4908 (u32)(*(macaddr + 5)) << 24; 4909 write_nic_dword(dev, WCAMI, target_content); 4910 write_nic_dword(dev, RWCAM, target_command); 4911 } else { 4912 /* Key Material */ 4913 if (keycontent) { 4914 write_nic_dword(dev, WCAMI, 4915 *(keycontent + i - 2)); 4916 write_nic_dword(dev, RWCAM, target_command); 4917 } 4918 } 4919 } 4920 } 4921 4922 /*************************************************************************** 4923 * ------------------- module init / exit stubs ---------------- 4924 ****************************************************************************/ 4925 module_init(rtl8192_usb_module_init); 4926 module_exit(rtl8192_usb_module_exit); 4927