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 int ret; 906 unsigned long flags; 907 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 908 u8 queue_index = tcb_desc->queue_index; 909 910 /* shall not be referred by command packet */ 911 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE); 912 913 spin_lock_irqsave(&priv->tx_lock, flags); 914 915 *(struct net_device **)(skb->cb) = dev; 916 tcb_desc->bTxEnableFwCalcDur = 1; 917 skb_push(skb, priv->ieee80211->tx_headroom); 918 ret = rtl8192_tx(dev, skb); 919 920 spin_unlock_irqrestore(&priv->tx_lock, flags); 921 } 922 923 /* This is a rough attempt to TX a frame 924 * This is called by the ieee 80211 stack to TX management frames. 925 * If the ring is full packet are dropped (for data frame the queue 926 * is stopped before this can happen). 927 */ 928 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 929 { 930 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 931 int ret; 932 unsigned long flags; 933 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 934 u8 queue_index = tcb_desc->queue_index; 935 936 spin_lock_irqsave(&priv->tx_lock, flags); 937 938 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev)); 939 if (queue_index == TXCMD_QUEUE) { 940 skb_push(skb, USB_HWDESC_HEADER_LEN); 941 rtl819xU_tx_cmd(dev, skb); 942 ret = 1; 943 } else { 944 skb_push(skb, priv->ieee80211->tx_headroom); 945 ret = rtl8192_tx(dev, skb); 946 } 947 948 spin_unlock_irqrestore(&priv->tx_lock, flags); 949 950 return ret; 951 } 952 953 static void rtl8192_tx_isr(struct urb *tx_urb) 954 { 955 struct sk_buff *skb = (struct sk_buff *)tx_urb->context; 956 struct net_device *dev; 957 struct r8192_priv *priv = NULL; 958 struct cb_desc *tcb_desc; 959 u8 queue_index; 960 961 if (!skb) 962 return; 963 964 dev = *(struct net_device **)(skb->cb); 965 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 966 queue_index = tcb_desc->queue_index; 967 968 priv = ieee80211_priv(dev); 969 970 if (tcb_desc->queue_index != TXCMD_QUEUE) { 971 if (tx_urb->status == 0) { 972 netif_trans_update(dev); 973 priv->stats.txoktotal++; 974 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++; 975 priv->stats.txbytesunicast += 976 (skb->len - priv->ieee80211->tx_headroom); 977 } else { 978 priv->ieee80211->stats.tx_errors++; 979 /* TODO */ 980 } 981 } 982 983 /* free skb and tx_urb */ 984 dev_kfree_skb_any(skb); 985 usb_free_urb(tx_urb); 986 atomic_dec(&priv->tx_pending[queue_index]); 987 988 /* 989 * Handle HW Beacon: 990 * We had transfer our beacon frame to host controller at this moment. 991 * 992 * 993 * Caution: 994 * Handling the wait queue of command packets. 995 * For Tx command packets, we must not do TCB fragment because it is 996 * not handled right now. We must cut the packets to match the size of 997 * TX_CMD_PKT before we send it. 998 */ 999 1000 /* Handle MPDU in wait queue. */ 1001 if (queue_index != BEACON_QUEUE) { 1002 /* Don't send data frame during scanning.*/ 1003 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) && 1004 (!(priv->ieee80211->queue_stop))) { 1005 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index])); 1006 if (skb) 1007 priv->ieee80211->softmac_hard_start_xmit(skb, 1008 dev); 1009 1010 return; /* avoid further processing AMSDU */ 1011 } 1012 } 1013 } 1014 1015 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config) 1016 { 1017 struct r8192_priv *priv = ieee80211_priv(dev); 1018 struct ieee80211_network *net; 1019 u8 i = 0, basic_rate = 0; 1020 1021 net = &priv->ieee80211->current_network; 1022 1023 for (i = 0; i < net->rates_len; i++) { 1024 basic_rate = net->rates[i] & 0x7f; 1025 switch (basic_rate) { 1026 case MGN_1M: 1027 *rate_config |= RRSR_1M; 1028 break; 1029 case MGN_2M: 1030 *rate_config |= RRSR_2M; 1031 break; 1032 case MGN_5_5M: 1033 *rate_config |= RRSR_5_5M; 1034 break; 1035 case MGN_11M: 1036 *rate_config |= RRSR_11M; 1037 break; 1038 case MGN_6M: 1039 *rate_config |= RRSR_6M; 1040 break; 1041 case MGN_9M: 1042 *rate_config |= RRSR_9M; 1043 break; 1044 case MGN_12M: 1045 *rate_config |= RRSR_12M; 1046 break; 1047 case MGN_18M: 1048 *rate_config |= RRSR_18M; 1049 break; 1050 case MGN_24M: 1051 *rate_config |= RRSR_24M; 1052 break; 1053 case MGN_36M: 1054 *rate_config |= RRSR_36M; 1055 break; 1056 case MGN_48M: 1057 *rate_config |= RRSR_48M; 1058 break; 1059 case MGN_54M: 1060 *rate_config |= RRSR_54M; 1061 break; 1062 } 1063 } 1064 for (i = 0; i < net->rates_ex_len; i++) { 1065 basic_rate = net->rates_ex[i] & 0x7f; 1066 switch (basic_rate) { 1067 case MGN_1M: 1068 *rate_config |= RRSR_1M; 1069 break; 1070 case MGN_2M: 1071 *rate_config |= RRSR_2M; 1072 break; 1073 case MGN_5_5M: 1074 *rate_config |= RRSR_5_5M; 1075 break; 1076 case MGN_11M: 1077 *rate_config |= RRSR_11M; 1078 break; 1079 case MGN_6M: 1080 *rate_config |= RRSR_6M; 1081 break; 1082 case MGN_9M: 1083 *rate_config |= RRSR_9M; 1084 break; 1085 case MGN_12M: 1086 *rate_config |= RRSR_12M; 1087 break; 1088 case MGN_18M: 1089 *rate_config |= RRSR_18M; 1090 break; 1091 case MGN_24M: 1092 *rate_config |= RRSR_24M; 1093 break; 1094 case MGN_36M: 1095 *rate_config |= RRSR_36M; 1096 break; 1097 case MGN_48M: 1098 *rate_config |= RRSR_48M; 1099 break; 1100 case MGN_54M: 1101 *rate_config |= RRSR_54M; 1102 break; 1103 } 1104 } 1105 } 1106 1107 #define SHORT_SLOT_TIME 9 1108 #define NON_SHORT_SLOT_TIME 20 1109 1110 static void rtl8192_update_cap(struct net_device *dev, u16 cap) 1111 { 1112 u32 tmp = 0; 1113 struct r8192_priv *priv = ieee80211_priv(dev); 1114 struct ieee80211_network *net = &priv->ieee80211->current_network; 1115 1116 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE; 1117 tmp = priv->basic_rate; 1118 if (priv->short_preamble) 1119 tmp |= BRSR_AckShortPmb; 1120 write_nic_dword(dev, RRSR, tmp); 1121 1122 if (net->mode & (IEEE_G | IEEE_N_24G)) { 1123 u8 slot_time = 0; 1124 1125 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) && 1126 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime)) 1127 /* short slot time */ 1128 slot_time = SHORT_SLOT_TIME; 1129 else /* long slot time */ 1130 slot_time = NON_SHORT_SLOT_TIME; 1131 priv->slot_time = slot_time; 1132 write_nic_byte(dev, SLOT_TIME, slot_time); 1133 } 1134 } 1135 1136 static void rtl8192_net_update(struct net_device *dev) 1137 { 1138 struct r8192_priv *priv = ieee80211_priv(dev); 1139 struct ieee80211_network *net; 1140 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf; 1141 u16 rate_config = 0; 1142 1143 net = &priv->ieee80211->current_network; 1144 1145 rtl8192_config_rate(dev, &rate_config); 1146 priv->basic_rate = rate_config & 0x15f; 1147 1148 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]); 1149 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]); 1150 1151 rtl8192_update_msr(dev); 1152 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) { 1153 write_nic_word(dev, ATIMWND, 2); 1154 write_nic_word(dev, BCN_DMATIME, 1023); 1155 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval); 1156 write_nic_word(dev, BCN_DRV_EARLY_INT, 1); 1157 write_nic_byte(dev, BCN_ERR_THRESH, 100); 1158 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT); 1159 /* TODO: BcnIFS may required to be changed on ASIC */ 1160 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS; 1161 1162 write_nic_word(dev, BCN_TCFG, BcnTimeCfg); 1163 } 1164 } 1165 1166 /* temporary hw beacon is not used any more. 1167 * open it when necessary 1168 */ 1169 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate) 1170 { 1171 } 1172 1173 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb) 1174 { 1175 struct r8192_priv *priv = ieee80211_priv(dev); 1176 int status; 1177 struct urb *tx_urb; 1178 unsigned int idx_pipe; 1179 struct tx_desc_cmd_819x_usb *pdesc = (struct tx_desc_cmd_819x_usb *)skb->data; 1180 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1181 u8 queue_index = tcb_desc->queue_index; 1182 1183 atomic_inc(&priv->tx_pending[queue_index]); 1184 tx_urb = usb_alloc_urb(0, GFP_ATOMIC); 1185 if (!tx_urb) { 1186 dev_kfree_skb(skb); 1187 return -ENOMEM; 1188 } 1189 1190 memset(pdesc, 0, USB_HWDESC_HEADER_LEN); 1191 /* Tx descriptor ought to be set according to the skb->cb */ 1192 pdesc->FirstSeg = 1; 1193 pdesc->LastSeg = 1; 1194 pdesc->CmdInit = tcb_desc->bCmdOrInit; 1195 pdesc->TxBufferSize = tcb_desc->txbuf_size; 1196 pdesc->OWN = 1; 1197 pdesc->LINIP = tcb_desc->bLastIniPkt; 1198 1199 /*--------------------------------------------------------------------- 1200 * Fill up USB_OUT_CONTEXT. 1201 *--------------------------------------------------------------------- 1202 */ 1203 idx_pipe = 0x04; 1204 usb_fill_bulk_urb(tx_urb, priv->udev, 1205 usb_sndbulkpipe(priv->udev, idx_pipe), 1206 skb->data, skb->len, rtl8192_tx_isr, skb); 1207 1208 status = usb_submit_urb(tx_urb, GFP_ATOMIC); 1209 1210 if (!status) 1211 return 0; 1212 1213 DMESGE("Error TX CMD URB, error %d", status); 1214 dev_kfree_skb(skb); 1215 usb_free_urb(tx_urb); 1216 return -1; 1217 } 1218 1219 /* 1220 * Mapping Software/Hardware descriptor queue id to "Queue Select Field" 1221 * in TxFwInfo data structure 1222 * 2006.10.30 by Emily 1223 * 1224 * \param QUEUEID Software Queue 1225 */ 1226 static u8 MapHwQueueToFirmwareQueue(u8 QueueID) 1227 { 1228 u8 QueueSelect = 0x0; /* default set to */ 1229 1230 switch (QueueID) { 1231 case BE_QUEUE: 1232 QueueSelect = QSLT_BE; 1233 break; 1234 1235 case BK_QUEUE: 1236 QueueSelect = QSLT_BK; 1237 break; 1238 1239 case VO_QUEUE: 1240 QueueSelect = QSLT_VO; 1241 break; 1242 1243 case VI_QUEUE: 1244 QueueSelect = QSLT_VI; 1245 break; 1246 case MGNT_QUEUE: 1247 QueueSelect = QSLT_MGNT; 1248 break; 1249 1250 case BEACON_QUEUE: 1251 QueueSelect = QSLT_BEACON; 1252 break; 1253 1254 /* TODO: mark other queue selection until we verify it is OK */ 1255 /* TODO: Remove Assertions */ 1256 case TXCMD_QUEUE: 1257 QueueSelect = QSLT_CMD; 1258 break; 1259 case HIGH_QUEUE: 1260 QueueSelect = QSLT_HIGH; 1261 break; 1262 1263 default: 1264 RT_TRACE(COMP_ERR, 1265 "TransmitTCB(): Impossible Queue Selection: %d\n", 1266 QueueID); 1267 break; 1268 } 1269 return QueueSelect; 1270 } 1271 1272 static u8 MRateToHwRate8190Pci(u8 rate) 1273 { 1274 u8 ret = DESC90_RATE1M; 1275 1276 switch (rate) { 1277 case MGN_1M: 1278 ret = DESC90_RATE1M; 1279 break; 1280 case MGN_2M: 1281 ret = DESC90_RATE2M; 1282 break; 1283 case MGN_5_5M: 1284 ret = DESC90_RATE5_5M; 1285 break; 1286 case MGN_11M: 1287 ret = DESC90_RATE11M; 1288 break; 1289 case MGN_6M: 1290 ret = DESC90_RATE6M; 1291 break; 1292 case MGN_9M: 1293 ret = DESC90_RATE9M; 1294 break; 1295 case MGN_12M: 1296 ret = DESC90_RATE12M; 1297 break; 1298 case MGN_18M: 1299 ret = DESC90_RATE18M; 1300 break; 1301 case MGN_24M: 1302 ret = DESC90_RATE24M; 1303 break; 1304 case MGN_36M: 1305 ret = DESC90_RATE36M; 1306 break; 1307 case MGN_48M: 1308 ret = DESC90_RATE48M; 1309 break; 1310 case MGN_54M: 1311 ret = DESC90_RATE54M; 1312 break; 1313 1314 /* HT rate since here */ 1315 case MGN_MCS0: 1316 ret = DESC90_RATEMCS0; 1317 break; 1318 case MGN_MCS1: 1319 ret = DESC90_RATEMCS1; 1320 break; 1321 case MGN_MCS2: 1322 ret = DESC90_RATEMCS2; 1323 break; 1324 case MGN_MCS3: 1325 ret = DESC90_RATEMCS3; 1326 break; 1327 case MGN_MCS4: 1328 ret = DESC90_RATEMCS4; 1329 break; 1330 case MGN_MCS5: 1331 ret = DESC90_RATEMCS5; 1332 break; 1333 case MGN_MCS6: 1334 ret = DESC90_RATEMCS6; 1335 break; 1336 case MGN_MCS7: 1337 ret = DESC90_RATEMCS7; 1338 break; 1339 case MGN_MCS8: 1340 ret = DESC90_RATEMCS8; 1341 break; 1342 case MGN_MCS9: 1343 ret = DESC90_RATEMCS9; 1344 break; 1345 case MGN_MCS10: 1346 ret = DESC90_RATEMCS10; 1347 break; 1348 case MGN_MCS11: 1349 ret = DESC90_RATEMCS11; 1350 break; 1351 case MGN_MCS12: 1352 ret = DESC90_RATEMCS12; 1353 break; 1354 case MGN_MCS13: 1355 ret = DESC90_RATEMCS13; 1356 break; 1357 case MGN_MCS14: 1358 ret = DESC90_RATEMCS14; 1359 break; 1360 case MGN_MCS15: 1361 ret = DESC90_RATEMCS15; 1362 break; 1363 case (0x80 | 0x20): 1364 ret = DESC90_RATEMCS32; 1365 break; 1366 1367 default: 1368 break; 1369 } 1370 return ret; 1371 } 1372 1373 static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc) 1374 { 1375 u8 tmp_Short; 1376 1377 tmp_Short = (TxHT == 1) ? 1378 ((tcb_desc->bUseShortGI) ? 1 : 0) : 1379 ((tcb_desc->bUseShortPreamble) ? 1 : 0); 1380 1381 if (TxHT == 1 && TxRate != DESC90_RATEMCS15) 1382 tmp_Short = 0; 1383 1384 return tmp_Short; 1385 } 1386 1387 static void tx_zero_isr(struct urb *tx_urb) 1388 { 1389 } 1390 1391 /* 1392 * The tx procedure is just as following, 1393 * skb->cb will contain all the following information, 1394 * priority, morefrag, rate, &dev. 1395 */ 1396 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) 1397 { 1398 struct r8192_priv *priv = ieee80211_priv(dev); 1399 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); 1400 struct tx_desc_819x_usb *tx_desc = (struct tx_desc_819x_usb *)skb->data; 1401 struct tx_fwinfo_819x_usb *tx_fwinfo = 1402 (struct tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN); 1403 struct usb_device *udev = priv->udev; 1404 int pend; 1405 int status, rt = -1; 1406 struct urb *tx_urb = NULL, *tx_urb_zero = NULL; 1407 unsigned int idx_pipe; 1408 1409 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]); 1410 /* we are locked here so the two atomic_read and inc are executed 1411 * without interleaves 1412 * !!! For debug purpose 1413 */ 1414 if (pend > MAX_TX_URB) { 1415 netdev_dbg(dev, "To discard skb packet!\n"); 1416 dev_kfree_skb_any(skb); 1417 return -1; 1418 } 1419 1420 tx_urb = usb_alloc_urb(0, GFP_ATOMIC); 1421 if (!tx_urb) { 1422 dev_kfree_skb_any(skb); 1423 return -ENOMEM; 1424 } 1425 1426 /* Fill Tx firmware info */ 1427 memset(tx_fwinfo, 0, sizeof(struct tx_fwinfo_819x_usb)); 1428 /* DWORD 0 */ 1429 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0; 1430 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate); 1431 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur; 1432 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate, 1433 tcb_desc); 1434 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */ 1435 tx_fwinfo->AllowAggregation = 1; 1436 /* DWORD 1 */ 1437 tx_fwinfo->RxMF = tcb_desc->ampdu_factor; 1438 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07; 1439 } else { 1440 tx_fwinfo->AllowAggregation = 0; 1441 /* DWORD 1 */ 1442 tx_fwinfo->RxMF = 0; 1443 tx_fwinfo->RxAMD = 0; 1444 } 1445 1446 /* Protection mode related */ 1447 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0; 1448 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0; 1449 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0; 1450 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0; 1451 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate); 1452 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0; 1453 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0; 1454 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) : 1455 (tcb_desc->bRTSUseShortGI ? 1 : 0); 1456 1457 /* Set Bandwidth and sub-channel settings. */ 1458 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) { 1459 if (tcb_desc->bPacketBW) { 1460 tx_fwinfo->TxBandwidth = 1; 1461 /* use duplicated mode */ 1462 tx_fwinfo->TxSubCarrier = 0; 1463 } else { 1464 tx_fwinfo->TxBandwidth = 0; 1465 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC; 1466 } 1467 } else { 1468 tx_fwinfo->TxBandwidth = 0; 1469 tx_fwinfo->TxSubCarrier = 0; 1470 } 1471 1472 /* Fill Tx descriptor */ 1473 memset(tx_desc, 0, sizeof(struct tx_desc_819x_usb)); 1474 /* DWORD 0 */ 1475 tx_desc->LINIP = 0; 1476 tx_desc->CmdInit = 1; 1477 tx_desc->Offset = sizeof(struct tx_fwinfo_819x_usb) + 8; 1478 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff; 1479 1480 /*DWORD 1*/ 1481 tx_desc->SecCAMID = 0; 1482 tx_desc->RATid = tcb_desc->RATRIndex; 1483 tx_desc->NoEnc = 1; 1484 tx_desc->SecType = 0x0; 1485 if (tcb_desc->bHwSec) { 1486 switch (priv->ieee80211->pairwise_key_type) { 1487 case KEY_TYPE_WEP40: 1488 case KEY_TYPE_WEP104: 1489 tx_desc->SecType = 0x1; 1490 tx_desc->NoEnc = 0; 1491 break; 1492 case KEY_TYPE_TKIP: 1493 tx_desc->SecType = 0x2; 1494 tx_desc->NoEnc = 0; 1495 break; 1496 case KEY_TYPE_CCMP: 1497 tx_desc->SecType = 0x3; 1498 tx_desc->NoEnc = 0; 1499 break; 1500 case KEY_TYPE_NA: 1501 tx_desc->SecType = 0x0; 1502 tx_desc->NoEnc = 1; 1503 break; 1504 } 1505 } 1506 1507 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index); 1508 tx_desc->TxFWInfoSize = sizeof(struct tx_fwinfo_819x_usb); 1509 1510 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack; 1511 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate; 1512 1513 /* Fill fields that are required to be initialized in 1514 * all of the descriptors 1515 */ 1516 /* DWORD 0 */ 1517 tx_desc->FirstSeg = 1; 1518 tx_desc->LastSeg = 1; 1519 tx_desc->OWN = 1; 1520 1521 /* DWORD 2 */ 1522 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN); 1523 idx_pipe = 0x5; 1524 1525 /* To submit bulk urb */ 1526 usb_fill_bulk_urb(tx_urb, udev, 1527 usb_sndbulkpipe(udev, idx_pipe), skb->data, 1528 skb->len, rtl8192_tx_isr, skb); 1529 1530 status = usb_submit_urb(tx_urb, GFP_ATOMIC); 1531 if (!status) { 1532 /* We need to send 0 byte packet whenever 1533 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has 1534 * been transmitted. Otherwise, it will be halt to wait for 1535 * another packet. 1536 */ 1537 bool bSend0Byte = false; 1538 u8 zero = 0; 1539 1540 if (udev->speed == USB_SPEED_HIGH) { 1541 if (skb->len > 0 && skb->len % 512 == 0) 1542 bSend0Byte = true; 1543 } else { 1544 if (skb->len > 0 && skb->len % 64 == 0) 1545 bSend0Byte = true; 1546 } 1547 if (bSend0Byte) { 1548 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC); 1549 if (!tx_urb_zero) { 1550 rt = -ENOMEM; 1551 goto error; 1552 } 1553 usb_fill_bulk_urb(tx_urb_zero, udev, 1554 usb_sndbulkpipe(udev, idx_pipe), 1555 &zero, 0, tx_zero_isr, dev); 1556 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC); 1557 if (status) { 1558 RT_TRACE(COMP_ERR, 1559 "Error TX URB for zero byte %d, error %d", 1560 atomic_read(&priv->tx_pending[tcb_desc->queue_index]), 1561 status); 1562 goto error; 1563 } 1564 } 1565 netif_trans_update(dev); 1566 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]); 1567 return 0; 1568 } 1569 1570 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d", 1571 atomic_read(&priv->tx_pending[tcb_desc->queue_index]), 1572 status); 1573 1574 error: 1575 dev_kfree_skb_any(skb); 1576 usb_free_urb(tx_urb); 1577 usb_free_urb(tx_urb_zero); 1578 return rt; 1579 } 1580 1581 static short rtl8192_usb_initendpoints(struct net_device *dev) 1582 { 1583 struct r8192_priv *priv = ieee80211_priv(dev); 1584 1585 priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *), 1586 GFP_KERNEL); 1587 if (!priv->rx_urb) 1588 return -ENOMEM; 1589 1590 #ifndef JACKSON_NEW_RX 1591 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1592 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); 1593 if (!priv->rx_urb[i]) 1594 return -ENOMEM; 1595 1596 priv->rx_urb[i]->transfer_buffer = 1597 kmalloc(RX_URB_SIZE, GFP_KERNEL); 1598 if (!priv->rx_urb[i]->transfer_buffer) 1599 return -ENOMEM; 1600 1601 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE; 1602 } 1603 #endif 1604 1605 #ifdef THOMAS_BEACON 1606 { 1607 long align = 0; 1608 void *oldaddr, *newaddr; 1609 1610 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL); 1611 priv->oldaddr = kmalloc(16, GFP_KERNEL); 1612 if (!priv->oldaddr) 1613 return -ENOMEM; 1614 oldaddr = priv->oldaddr; 1615 align = ((long)oldaddr) & 3; 1616 if (align) { 1617 newaddr = oldaddr + 4 - align; 1618 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align; 1619 } else { 1620 newaddr = oldaddr; 1621 priv->rx_urb[16]->transfer_buffer_length = 16; 1622 } 1623 priv->rx_urb[16]->transfer_buffer = newaddr; 1624 } 1625 #endif 1626 1627 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB); 1628 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *), 1629 GFP_KERNEL); 1630 if (!priv->pp_rxskb) { 1631 kfree(priv->rx_urb); 1632 1633 priv->pp_rxskb = NULL; 1634 priv->rx_urb = NULL; 1635 1636 DMESGE("Endpoint Alloc Failure"); 1637 return -ENOMEM; 1638 } 1639 1640 netdev_dbg(dev, "End of initendpoints\n"); 1641 return 0; 1642 } 1643 1644 #ifdef THOMAS_BEACON 1645 static void rtl8192_usb_deleteendpoints(struct net_device *dev) 1646 { 1647 int i; 1648 struct r8192_priv *priv = ieee80211_priv(dev); 1649 1650 if (priv->rx_urb) { 1651 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1652 usb_kill_urb(priv->rx_urb[i]); 1653 usb_free_urb(priv->rx_urb[i]); 1654 } 1655 kfree(priv->rx_urb); 1656 priv->rx_urb = NULL; 1657 } 1658 kfree(priv->oldaddr); 1659 priv->oldaddr = NULL; 1660 1661 kfree(priv->pp_rxskb); 1662 priv->pp_rxskb = NULL; 1663 } 1664 #else 1665 void rtl8192_usb_deleteendpoints(struct net_device *dev) 1666 { 1667 int i; 1668 struct r8192_priv *priv = ieee80211_priv(dev); 1669 1670 #ifndef JACKSON_NEW_RX 1671 1672 if (priv->rx_urb) { 1673 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1674 usb_kill_urb(priv->rx_urb[i]); 1675 kfree(priv->rx_urb[i]->transfer_buffer); 1676 usb_free_urb(priv->rx_urb[i]); 1677 } 1678 kfree(priv->rx_urb); 1679 priv->rx_urb = NULL; 1680 } 1681 #else 1682 kfree(priv->rx_urb); 1683 priv->rx_urb = NULL; 1684 kfree(priv->oldaddr); 1685 priv->oldaddr = NULL; 1686 1687 kfree(priv->pp_rxskb); 1688 priv->pp_rxskb = 0; 1689 1690 #endif 1691 } 1692 #endif 1693 1694 static void rtl8192_update_ratr_table(struct net_device *dev); 1695 static void rtl8192_link_change(struct net_device *dev) 1696 { 1697 struct r8192_priv *priv = ieee80211_priv(dev); 1698 struct ieee80211_device *ieee = priv->ieee80211; 1699 1700 if (ieee->state == IEEE80211_LINKED) { 1701 rtl8192_net_update(dev); 1702 rtl8192_update_ratr_table(dev); 1703 /* Add this as in pure N mode, wep encryption will use software 1704 * way, but there is no chance to set this as wep will not set 1705 * group key in wext. 1706 */ 1707 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 || 1708 ieee->pairwise_key_type == KEY_TYPE_WEP104) 1709 EnableHWSecurityConfig8192(dev); 1710 } 1711 /*update timing params*/ 1712 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) { 1713 u32 reg = 0; 1714 1715 read_nic_dword(dev, RCR, ®); 1716 if (priv->ieee80211->state == IEEE80211_LINKED) 1717 priv->ReceiveConfig = reg |= RCR_CBSSID; 1718 else 1719 priv->ReceiveConfig = reg &= ~RCR_CBSSID; 1720 write_nic_dword(dev, RCR, reg); 1721 } 1722 } 1723 1724 static const struct ieee80211_qos_parameters def_qos_parameters = { 1725 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)}, 1726 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)}, 1727 {2, 2, 2, 2},/* aifs */ 1728 {0, 0, 0, 0},/* flags */ 1729 {0, 0, 0, 0} /* tx_op_limit */ 1730 }; 1731 1732 static void rtl8192_update_beacon(struct work_struct *work) 1733 { 1734 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1735 update_beacon_wq.work); 1736 struct net_device *dev = priv->ieee80211->dev; 1737 struct ieee80211_device *ieee = priv->ieee80211; 1738 struct ieee80211_network *net = &ieee->current_network; 1739 1740 if (ieee->pHTInfo->bCurrentHTSupport) 1741 HTUpdateSelfAndPeerSetting(ieee, net); 1742 ieee->pHTInfo->bCurrentRT2RTLongSlotTime = 1743 net->bssht.bdRT2RTLongSlotTime; 1744 rtl8192_update_cap(dev, net->capability); 1745 } 1746 1747 /* 1748 * background support to run QoS activate functionality 1749 */ 1750 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK, 1751 EDCAPARA_VI, EDCAPARA_VO}; 1752 static void rtl8192_qos_activate(struct work_struct *work) 1753 { 1754 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1755 qos_activate); 1756 struct net_device *dev = priv->ieee80211->dev; 1757 struct ieee80211_qos_parameters *qos_parameters = 1758 &priv->ieee80211->current_network.qos_data.parameters; 1759 u8 mode = priv->ieee80211->current_network.mode; 1760 u32 u1bAIFS; 1761 u32 u4bAcParam; 1762 u32 op_limit; 1763 u32 cw_max; 1764 u32 cw_min; 1765 int i; 1766 1767 mutex_lock(&priv->mutex); 1768 if (priv->ieee80211->state != IEEE80211_LINKED) 1769 goto success; 1770 RT_TRACE(COMP_QOS, 1771 "qos active process with associate response received\n"); 1772 /* It better set slot time at first 1773 * 1774 * For we just support b/g mode at present, let the slot time at 1775 * 9/20 selection 1776 * 1777 * update the ac parameter to related registers 1778 */ 1779 for (i = 0; i < QOS_QUEUE_NUM; i++) { 1780 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */ 1781 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime; 1782 u1bAIFS <<= AC_PARAM_AIFS_OFFSET; 1783 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]); 1784 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET; 1785 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]); 1786 cw_max <<= AC_PARAM_ECW_MAX_OFFSET; 1787 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]); 1788 cw_min <<= AC_PARAM_ECW_MIN_OFFSET; 1789 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS; 1790 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam); 1791 } 1792 1793 success: 1794 mutex_unlock(&priv->mutex); 1795 } 1796 1797 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv, 1798 int active_network, 1799 struct ieee80211_network *network) 1800 { 1801 int ret = 0; 1802 u32 size = sizeof(struct ieee80211_qos_parameters); 1803 1804 if (priv->ieee80211->state != IEEE80211_LINKED) 1805 return ret; 1806 1807 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1808 return ret; 1809 1810 if (network->flags & NETWORK_HAS_QOS_MASK) { 1811 if (active_network && 1812 (network->flags & NETWORK_HAS_QOS_PARAMETERS)) 1813 network->qos_data.active = network->qos_data.supported; 1814 1815 if ((network->qos_data.active == 1) && (active_network == 1) && 1816 (network->flags & NETWORK_HAS_QOS_PARAMETERS) && 1817 (network->qos_data.old_param_count != 1818 network->qos_data.param_count)) { 1819 network->qos_data.old_param_count = 1820 network->qos_data.param_count; 1821 schedule_work(&priv->qos_activate); 1822 RT_TRACE(COMP_QOS, 1823 "QoS parameters change call qos_activate\n"); 1824 } 1825 } else { 1826 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1827 &def_qos_parameters, size); 1828 1829 if ((network->qos_data.active == 1) && (active_network == 1)) { 1830 schedule_work(&priv->qos_activate); 1831 RT_TRACE(COMP_QOS, 1832 "QoS was disabled call qos_activate\n"); 1833 } 1834 network->qos_data.active = 0; 1835 network->qos_data.supported = 0; 1836 } 1837 1838 return 0; 1839 } 1840 1841 /* handle and manage frame from beacon and probe response */ 1842 static int rtl8192_handle_beacon(struct net_device *dev, 1843 struct ieee80211_beacon *beacon, 1844 struct ieee80211_network *network) 1845 { 1846 struct r8192_priv *priv = ieee80211_priv(dev); 1847 1848 rtl8192_qos_handle_probe_response(priv, 1, network); 1849 schedule_delayed_work(&priv->update_beacon_wq, 0); 1850 return 0; 1851 } 1852 1853 /* 1854 * handling the beaconing responses. if we get different QoS setting 1855 * off the network from the associated setting, adjust the QoS 1856 * setting 1857 */ 1858 static int rtl8192_qos_association_resp(struct r8192_priv *priv, 1859 struct ieee80211_network *network) 1860 { 1861 unsigned long flags; 1862 u32 size = sizeof(struct ieee80211_qos_parameters); 1863 int set_qos_param = 0; 1864 1865 if (!priv || !network) 1866 return 0; 1867 1868 if (priv->ieee80211->state != IEEE80211_LINKED) 1869 return 0; 1870 1871 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1872 return 0; 1873 1874 spin_lock_irqsave(&priv->ieee80211->lock, flags); 1875 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { 1876 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1877 &network->qos_data.parameters, 1878 sizeof(struct ieee80211_qos_parameters)); 1879 priv->ieee80211->current_network.qos_data.active = 1; 1880 set_qos_param = 1; 1881 /* update qos parameter for current network */ 1882 priv->ieee80211->current_network.qos_data.old_param_count = 1883 priv->ieee80211->current_network.qos_data.param_count; 1884 priv->ieee80211->current_network.qos_data.param_count = 1885 network->qos_data.param_count; 1886 } else { 1887 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1888 &def_qos_parameters, size); 1889 priv->ieee80211->current_network.qos_data.active = 0; 1890 priv->ieee80211->current_network.qos_data.supported = 0; 1891 set_qos_param = 1; 1892 } 1893 1894 spin_unlock_irqrestore(&priv->ieee80211->lock, flags); 1895 1896 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__, 1897 network->flags, 1898 priv->ieee80211->current_network.qos_data.active); 1899 if (set_qos_param == 1) 1900 schedule_work(&priv->qos_activate); 1901 1902 return 0; 1903 } 1904 1905 static int rtl8192_handle_assoc_response(struct net_device *dev, 1906 struct ieee80211_assoc_response_frame *resp, 1907 struct ieee80211_network *network) 1908 { 1909 struct r8192_priv *priv = ieee80211_priv(dev); 1910 1911 rtl8192_qos_association_resp(priv, network); 1912 return 0; 1913 } 1914 1915 static void rtl8192_update_ratr_table(struct net_device *dev) 1916 { 1917 struct r8192_priv *priv = ieee80211_priv(dev); 1918 struct ieee80211_device *ieee = priv->ieee80211; 1919 u8 *pMcsRate = ieee->dot11HTOperationalRateSet; 1920 u32 ratr_value = 0; 1921 u8 rate_index = 0; 1922 1923 rtl8192_config_rate(dev, (u16 *)(&ratr_value)); 1924 ratr_value |= (*(u16 *)(pMcsRate)) << 12; 1925 switch (ieee->mode) { 1926 case IEEE_A: 1927 ratr_value &= 0x00000FF0; 1928 break; 1929 case IEEE_B: 1930 ratr_value &= 0x0000000F; 1931 break; 1932 case IEEE_G: 1933 ratr_value &= 0x00000FF7; 1934 break; 1935 case IEEE_N_24G: 1936 case IEEE_N_5G: 1937 if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) { 1938 ratr_value &= 0x0007F007; 1939 } else { 1940 if (priv->rf_type == RF_1T2R) 1941 ratr_value &= 0x000FF007; 1942 else 1943 ratr_value &= 0x0F81F007; 1944 } 1945 break; 1946 default: 1947 break; 1948 } 1949 ratr_value &= 0x0FFFFFFF; 1950 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz) 1951 ratr_value |= 0x80000000; 1952 else if (!ieee->pHTInfo->bCurTxBW40MHz && 1953 ieee->pHTInfo->bCurShortGI20MHz) 1954 ratr_value |= 0x80000000; 1955 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value); 1956 write_nic_byte(dev, UFWP, 1); 1957 } 1958 1959 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04}; 1960 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04}; 1961 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev) 1962 { 1963 struct r8192_priv *priv = ieee80211_priv(dev); 1964 struct ieee80211_device *ieee = priv->ieee80211; 1965 struct ieee80211_network *network = &ieee->current_network; 1966 int wpa_ie_len = ieee->wpa_ie_len; 1967 struct ieee80211_crypt_data *crypt; 1968 int encrypt; 1969 1970 crypt = ieee->crypt[ieee->tx_keyidx]; 1971 /* we use connecting AP's capability instead of only security config 1972 * on our driver to distinguish whether it should use N mode or G mode 1973 */ 1974 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) || 1975 (ieee->host_encrypt && crypt && crypt->ops && 1976 (strcmp(crypt->ops->name, "WEP") == 0)); 1977 1978 /* simply judge */ 1979 if (encrypt && (wpa_ie_len == 0)) { 1980 /* wep encryption, no N mode setting */ 1981 return false; 1982 } else if ((wpa_ie_len != 0)) { 1983 /* parse pairwise key type */ 1984 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)))) 1985 return true; 1986 else 1987 return false; 1988 } else { 1989 return true; 1990 } 1991 1992 return true; 1993 } 1994 1995 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev) 1996 { 1997 struct r8192_priv *priv = ieee80211_priv(dev); 1998 1999 return priv->ieee80211->bHalfWirelessN24GMode; 2000 } 2001 2002 static void rtl8192_refresh_supportrate(struct r8192_priv *priv) 2003 { 2004 struct ieee80211_device *ieee = priv->ieee80211; 2005 /* We do not consider set support rate for ABG mode, only 2006 * HT MCS rate is set here. 2007 */ 2008 if (ieee->mode == WIRELESS_MODE_N_24G || 2009 ieee->mode == WIRELESS_MODE_N_5G) 2010 memcpy(ieee->Regdot11HTOperationalRateSet, 2011 ieee->RegHTSuppRateSet, 16); 2012 else 2013 memset(ieee->Regdot11HTOperationalRateSet, 0, 16); 2014 } 2015 2016 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev) 2017 { 2018 struct r8192_priv *priv = ieee80211_priv(dev); 2019 u8 ret = 0; 2020 2021 switch (priv->rf_chip) { 2022 case RF_8225: 2023 case RF_8256: 2024 case RF_PSEUDO_11N: 2025 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B; 2026 break; 2027 case RF_8258: 2028 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G; 2029 break; 2030 default: 2031 ret = WIRELESS_MODE_B; 2032 break; 2033 } 2034 return ret; 2035 } 2036 2037 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) 2038 { 2039 struct r8192_priv *priv = ieee80211_priv(dev); 2040 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev); 2041 2042 if (wireless_mode == WIRELESS_MODE_AUTO || 2043 (wireless_mode & bSupportMode) == 0) { 2044 if (bSupportMode & WIRELESS_MODE_N_24G) { 2045 wireless_mode = WIRELESS_MODE_N_24G; 2046 } else if (bSupportMode & WIRELESS_MODE_N_5G) { 2047 wireless_mode = WIRELESS_MODE_N_5G; 2048 } else if ((bSupportMode & WIRELESS_MODE_A)) { 2049 wireless_mode = WIRELESS_MODE_A; 2050 } else if ((bSupportMode & WIRELESS_MODE_G)) { 2051 wireless_mode = WIRELESS_MODE_G; 2052 } else if ((bSupportMode & WIRELESS_MODE_B)) { 2053 wireless_mode = WIRELESS_MODE_B; 2054 } else { 2055 RT_TRACE(COMP_ERR, 2056 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n", 2057 __func__, bSupportMode); 2058 wireless_mode = WIRELESS_MODE_B; 2059 } 2060 } 2061 priv->ieee80211->mode = wireless_mode; 2062 2063 if (wireless_mode == WIRELESS_MODE_N_24G || 2064 wireless_mode == WIRELESS_MODE_N_5G) 2065 priv->ieee80211->pHTInfo->bEnableHT = 1; 2066 else 2067 priv->ieee80211->pHTInfo->bEnableHT = 0; 2068 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode); 2069 rtl8192_refresh_supportrate(priv); 2070 } 2071 2072 /* init priv variables here. only non_zero value should be initialized here. */ 2073 static int rtl8192_init_priv_variable(struct net_device *dev) 2074 { 2075 struct r8192_priv *priv = ieee80211_priv(dev); 2076 u8 i; 2077 2078 priv->card_8192 = NIC_8192U; 2079 priv->chan = 1; /* set to channel 1 */ 2080 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */ 2081 priv->ieee80211->iw_mode = IW_MODE_INFRA; 2082 priv->ieee80211->ieee_up = 0; 2083 priv->retry_rts = DEFAULT_RETRY_RTS; 2084 priv->retry_data = DEFAULT_RETRY_DATA; 2085 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD; 2086 priv->ieee80211->rate = 110; /* 11 mbps */ 2087 priv->ieee80211->short_slot = 1; 2088 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 2089 priv->CckPwEnl = 6; 2090 /* for silent reset */ 2091 priv->IrpPendingCount = 1; 2092 priv->ResetProgress = RESET_TYPE_NORESET; 2093 priv->bForcedSilentReset = false; 2094 priv->bDisableNormalResetCheck = false; 2095 priv->force_reset = false; 2096 2097 /* we don't use FW read/write RF until stable firmware is available. */ 2098 priv->ieee80211->FwRWRF = 0; 2099 priv->ieee80211->current_network.beacon_interval = 2100 DEFAULT_BEACONINTERVAL; 2101 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN | 2102 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ | 2103 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE | 2104 IEEE_SOFTMAC_BEACONS; 2105 2106 priv->ieee80211->active_scan = 1; 2107 priv->ieee80211->modulation = 2108 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION; 2109 priv->ieee80211->host_encrypt = 1; 2110 priv->ieee80211->host_decrypt = 1; 2111 priv->ieee80211->start_send_beacons = NULL; 2112 priv->ieee80211->stop_send_beacons = NULL; 2113 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit; 2114 priv->ieee80211->set_chan = rtl8192_set_chan; 2115 priv->ieee80211->link_change = rtl8192_link_change; 2116 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit; 2117 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop; 2118 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume; 2119 priv->ieee80211->init_wmmparam_flag = 0; 2120 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD; 2121 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc; 2122 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES; 2123 priv->ieee80211->qos_support = 1; 2124 2125 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode; 2126 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response; 2127 priv->ieee80211->handle_beacon = rtl8192_handle_beacon; 2128 2129 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192; 2130 priv->ieee80211->GetHalfNmodeSupportByAPsHandler = 2131 GetHalfNmodeSupportByAPs819xUsb; 2132 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode; 2133 2134 priv->ieee80211->InitialGainHandler = InitialGain819xUsb; 2135 priv->card_type = USB; 2136 priv->ShortRetryLimit = 0x30; 2137 priv->LongRetryLimit = 0x30; 2138 priv->EarlyRxThreshold = 7; 2139 priv->enable_gpio0 = 0; 2140 priv->TransmitConfig = 2141 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */ 2142 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) | 2143 /* Short retry limit */ 2144 (priv->ShortRetryLimit << TCR_SRL_OFFSET) | 2145 /* Long retry limit */ 2146 (priv->LongRetryLimit << TCR_LRL_OFFSET) | 2147 /* FALSE: HW provides PLCP length and LENGEXT 2148 * TRUE: SW provides them 2149 */ 2150 (false ? TCR_SAT : 0); 2151 priv->ReceiveConfig = 2152 /* accept management/data */ 2153 RCR_AMF | RCR_ADF | 2154 /* accept control frame for SW AP needs PS-poll */ 2155 RCR_ACF | 2156 /* accept BC/MC/UC */ 2157 RCR_AB | RCR_AM | RCR_APM | 2158 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */ 2159 ((u32)7 << RCR_MXDMA_OFFSET) | 2160 /* Rx FIFO Threshold, 7: No Rx threshold. */ 2161 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) | 2162 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0); 2163 2164 priv->AcmControl = 0; 2165 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL); 2166 if (!priv->pFirmware) 2167 return -ENOMEM; 2168 2169 /* rx related queue */ 2170 skb_queue_head_init(&priv->rx_queue); 2171 skb_queue_head_init(&priv->skb_queue); 2172 2173 /* Tx related queue */ 2174 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2175 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]); 2176 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2177 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]); 2178 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2179 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]); 2180 priv->rf_set_chan = rtl8192_phy_SwChnl; 2181 2182 return 0; 2183 } 2184 2185 /* init lock here */ 2186 static void rtl8192_init_priv_lock(struct r8192_priv *priv) 2187 { 2188 spin_lock_init(&priv->tx_lock); 2189 spin_lock_init(&priv->irq_lock); 2190 mutex_init(&priv->wx_mutex); 2191 mutex_init(&priv->mutex); 2192 } 2193 2194 static void rtl819x_watchdog_wqcallback(struct work_struct *work); 2195 2196 static void rtl8192_irq_rx_tasklet(unsigned long data); 2197 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */ 2198 #define DRV_NAME "wlan0" 2199 static void rtl8192_init_priv_task(struct net_device *dev) 2200 { 2201 struct r8192_priv *priv = ieee80211_priv(dev); 2202 2203 INIT_WORK(&priv->reset_wq, rtl8192_restart); 2204 2205 INIT_DELAYED_WORK(&priv->watch_dog_wq, 2206 rtl819x_watchdog_wqcallback); 2207 INIT_DELAYED_WORK(&priv->txpower_tracking_wq, 2208 dm_txpower_trackingcallback); 2209 INIT_DELAYED_WORK(&priv->rfpath_check_wq, 2210 dm_rf_pathcheck_workitemcallback); 2211 INIT_DELAYED_WORK(&priv->update_beacon_wq, 2212 rtl8192_update_beacon); 2213 INIT_DELAYED_WORK(&priv->initialgain_operate_wq, 2214 InitialGainOperateWorkItemCallBack); 2215 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate); 2216 2217 tasklet_init(&priv->irq_rx_tasklet, rtl8192_irq_rx_tasklet, 2218 (unsigned long)priv); 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 int i; 2307 2308 for (i = 0; i < 6; i += 2) { 2309 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1)); 2310 if (ret < 0) 2311 return ret; 2312 *(u16 *)(&dev->dev_addr[i]) = (u16)ret; 2313 } 2314 } else { 2315 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6); 2316 /* should I set IDR0 here? */ 2317 } 2318 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr); 2319 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */ 2320 priv->rf_chip = RF_8256; 2321 2322 if (priv->card_8192_version == VERSION_819XU_A) { 2323 /* read Tx power gain offset of legacy OFDM to HT rate */ 2324 if (bLoad_From_EEPOM) { 2325 ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1)); 2326 if (ret < 0) 2327 return ret; 2328 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8; 2329 } else 2330 priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER; 2331 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff); 2332 /* read ThermalMeter from EEPROM */ 2333 if (bLoad_From_EEPOM) { 2334 ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1)); 2335 if (ret < 0) 2336 return ret; 2337 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff); 2338 } else 2339 priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER; 2340 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter); 2341 /* for tx power track */ 2342 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100; 2343 /* read antenna tx power offset of B/C/D to A from EEPROM */ 2344 if (bLoad_From_EEPOM) { 2345 ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1)); 2346 if (ret < 0) 2347 return ret; 2348 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8; 2349 } else 2350 priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF; 2351 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff); 2352 /* Read CrystalCap from EEPROM */ 2353 if (bLoad_From_EEPOM) { 2354 ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1)); 2355 if (ret < 0) 2356 return ret; 2357 priv->EEPROMCrystalCap = (u16)ret & 0x0f; 2358 } else 2359 priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP; 2360 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap); 2361 /* get per-channel Tx power level */ 2362 if (bLoad_From_EEPOM) { 2363 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1)); 2364 if (ret < 0) 2365 return ret; 2366 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8; 2367 } else 2368 priv->EEPROM_Def_Ver = 1; 2369 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver); 2370 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */ 2371 int i; 2372 2373 if (bLoad_From_EEPOM) { 2374 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1)); 2375 if (ret < 0) 2376 return ret; 2377 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff) >> 8; 2378 } else 2379 priv->EEPROMTxPowerLevelCCK = 0x10; 2380 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK); 2381 for (i = 0; i < 3; i++) { 2382 if (bLoad_From_EEPOM) { 2383 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1); 2384 if (ret < 0) 2385 return ret; 2386 if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0) 2387 tmpValue = (u16)ret & 0x00ff; 2388 else 2389 tmpValue = ((u16)ret & 0xff00) >> 8; 2390 } else { 2391 tmpValue = 0x10; 2392 } 2393 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue; 2394 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK); 2395 } 2396 } else if (priv->EEPROM_Def_Ver == 1) { 2397 if (bLoad_From_EEPOM) { 2398 ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1); 2399 if (ret < 0) 2400 return ret; 2401 tmpValue = ((u16)ret & 0xff00) >> 8; 2402 } else { 2403 tmpValue = 0x10; 2404 } 2405 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue; 2406 2407 if (bLoad_From_EEPOM) { 2408 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1); 2409 if (ret < 0) 2410 return ret; 2411 tmpValue = (u16)ret; 2412 } else 2413 tmpValue = 0x1010; 2414 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue; 2415 if (bLoad_From_EEPOM) 2416 tmpValue = eprom_read(dev, 2417 EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1); 2418 else 2419 tmpValue = 0x1010; 2420 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue; 2421 if (bLoad_From_EEPOM) 2422 tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1); 2423 else 2424 tmpValue = 0x10; 2425 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue; 2426 } /* endif EEPROM_Def_Ver == 1 */ 2427 2428 /* update HAL variables */ 2429 for (i = 0; i < 14; i++) { 2430 if (i <= 3) 2431 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0]; 2432 else if (i >= 4 && i <= 9) 2433 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1]; 2434 else 2435 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2]; 2436 } 2437 2438 for (i = 0; i < 14; i++) { 2439 if (priv->EEPROM_Def_Ver == 0) { 2440 if (i <= 3) 2441 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); 2442 else if (i >= 4 && i <= 9) 2443 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK; 2444 else 2445 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); 2446 } else if (priv->EEPROM_Def_Ver == 1) { 2447 if (i <= 3) 2448 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0]; 2449 else if (i >= 4 && i <= 9) 2450 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1]; 2451 else 2452 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2]; 2453 } 2454 } 2455 priv->TxPowerDiff = priv->EEPROMPwDiff; 2456 /* Antenna B gain offset to antenna A, bit0~3 */ 2457 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf); 2458 /* Antenna C gain offset to antenna A, bit4~7 */ 2459 priv->AntennaTxPwDiff[1] = 2460 (priv->EEPROMTxPowerDiff & 0xf0) >> 4; 2461 /* CrystalCap, bit12~15 */ 2462 priv->CrystalCap = priv->EEPROMCrystalCap; 2463 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2 2464 * 92U does not enable TX power tracking. 2465 */ 2466 priv->ThermalMeter[0] = priv->EEPROMThermalMeter; 2467 } /* end if VersionID == VERSION_819XU_A */ 2468 2469 /* for dlink led */ 2470 switch (priv->eeprom_CustomerID) { 2471 case EEPROM_CID_RUNTOP: 2472 priv->CustomerID = RT_CID_819x_RUNTOP; 2473 break; 2474 2475 case EEPROM_CID_DLINK: 2476 priv->CustomerID = RT_CID_DLINK; 2477 break; 2478 2479 default: 2480 priv->CustomerID = RT_CID_DEFAULT; 2481 break; 2482 } 2483 2484 switch (priv->CustomerID) { 2485 case RT_CID_819x_RUNTOP: 2486 priv->LedStrategy = SW_LED_MODE2; 2487 break; 2488 2489 case RT_CID_DLINK: 2490 priv->LedStrategy = SW_LED_MODE4; 2491 break; 2492 2493 default: 2494 priv->LedStrategy = SW_LED_MODE0; 2495 break; 2496 } 2497 2498 if (priv->rf_type == RF_1T2R) 2499 RT_TRACE(COMP_EPROM, "\n1T2R config\n"); 2500 else 2501 RT_TRACE(COMP_EPROM, "\n2T4R config\n"); 2502 2503 /* We can only know RF type in the function. So we have to init 2504 * DIG RATR table again. 2505 */ 2506 init_rate_adaptive(dev); 2507 2508 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__); 2509 2510 return 0; 2511 } 2512 2513 static short rtl8192_get_channel_map(struct net_device *dev) 2514 { 2515 struct r8192_priv *priv = ieee80211_priv(dev); 2516 2517 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) { 2518 netdev_err(dev, 2519 "rtl8180_init: Error channel plan! Set to default.\n"); 2520 priv->ChannelPlan = 0; 2521 } 2522 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan); 2523 2524 rtl819x_set_channel_map(priv->ChannelPlan, priv); 2525 return 0; 2526 } 2527 2528 static short rtl8192_init(struct net_device *dev) 2529 { 2530 struct r8192_priv *priv = ieee80211_priv(dev); 2531 int err; 2532 2533 memset(&(priv->stats), 0, sizeof(struct Stats)); 2534 memset(priv->txqueue_to_outpipemap, 0, 9); 2535 #ifdef PIPE12 2536 { 2537 int i = 0; 2538 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5}; 2539 2540 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); 2541 } 2542 #else 2543 { 2544 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4}; 2545 2546 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); 2547 } 2548 #endif 2549 err = rtl8192_init_priv_variable(dev); 2550 if (err) 2551 return err; 2552 2553 rtl8192_init_priv_lock(priv); 2554 rtl8192_init_priv_task(dev); 2555 rtl8192_get_eeprom_size(dev); 2556 err = rtl8192_read_eeprom_info(dev); 2557 if (err) { 2558 DMESG("Reading EEPROM info failed"); 2559 return err; 2560 } 2561 rtl8192_get_channel_map(dev); 2562 init_hal_dm(dev); 2563 timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0); 2564 if (rtl8192_usb_initendpoints(dev) != 0) { 2565 DMESG("Endopoints initialization failed"); 2566 return -ENOMEM; 2567 } 2568 2569 return 0; 2570 } 2571 2572 /****************************************************************************** 2573 *function: This function actually only set RRSR, RATR and BW_OPMODE registers 2574 * not to do all the hw config as its name says 2575 * input: net_device dev 2576 * output: none 2577 * return: none 2578 * notice: This part need to modified according to the rate set we filtered 2579 * ****************************************************************************/ 2580 static void rtl8192_hwconfig(struct net_device *dev) 2581 { 2582 u32 regRATR = 0, regRRSR = 0; 2583 u8 regBwOpMode = 0, regTmp = 0; 2584 struct r8192_priv *priv = ieee80211_priv(dev); 2585 u32 ratr_value = 0; 2586 2587 /* Set RRSR, RATR, and BW_OPMODE registers */ 2588 switch (priv->ieee80211->mode) { 2589 case WIRELESS_MODE_B: 2590 regBwOpMode = BW_OPMODE_20MHZ; 2591 regRATR = RATE_ALL_CCK; 2592 regRRSR = RATE_ALL_CCK; 2593 break; 2594 case WIRELESS_MODE_A: 2595 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ; 2596 regRATR = RATE_ALL_OFDM_AG; 2597 regRRSR = RATE_ALL_OFDM_AG; 2598 break; 2599 case WIRELESS_MODE_G: 2600 regBwOpMode = BW_OPMODE_20MHZ; 2601 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2602 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2603 break; 2604 case WIRELESS_MODE_AUTO: 2605 regBwOpMode = BW_OPMODE_20MHZ; 2606 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | 2607 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; 2608 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2609 break; 2610 case WIRELESS_MODE_N_24G: 2611 /* It support CCK rate by default. CCK rate will be filtered 2612 * out only when associated AP does not support it. 2613 */ 2614 regBwOpMode = BW_OPMODE_20MHZ; 2615 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | 2616 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; 2617 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2618 break; 2619 case WIRELESS_MODE_N_5G: 2620 regBwOpMode = BW_OPMODE_5G; 2621 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | 2622 RATE_ALL_OFDM_2SS; 2623 regRRSR = RATE_ALL_OFDM_AG; 2624 break; 2625 } 2626 2627 write_nic_byte(dev, BW_OPMODE, regBwOpMode); 2628 ratr_value = regRATR; 2629 if (priv->rf_type == RF_1T2R) 2630 ratr_value &= ~(RATE_ALL_OFDM_2SS); 2631 write_nic_dword(dev, RATR0, ratr_value); 2632 write_nic_byte(dev, UFWP, 1); 2633 read_nic_byte(dev, 0x313, ®Tmp); 2634 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff); 2635 write_nic_dword(dev, RRSR, regRRSR); 2636 2637 /* Set Retry Limit here */ 2638 write_nic_word(dev, RETRY_LIMIT, 2639 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT | 2640 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT); 2641 /* Set Contention Window here */ 2642 2643 /* Set Tx AGC */ 2644 2645 /* Set Tx Antenna including Feedback control */ 2646 2647 /* Set Auto Rate fallback control */ 2648 } 2649 2650 /* InitializeAdapter and PhyCfg */ 2651 static bool rtl8192_adapter_start(struct net_device *dev) 2652 { 2653 struct r8192_priv *priv = ieee80211_priv(dev); 2654 u32 dwRegRead = 0; 2655 bool init_status = true; 2656 u8 SECR_value = 0x0; 2657 u8 tmp; 2658 2659 RT_TRACE(COMP_INIT, "====>%s()\n", __func__); 2660 priv->Rf_Mode = RF_OP_By_SW_3wire; 2661 /* for ASIC power on sequence */ 2662 write_nic_byte_E(dev, 0x5f, 0x80); 2663 mdelay(50); 2664 write_nic_byte_E(dev, 0x5f, 0xf0); 2665 write_nic_byte_E(dev, 0x5d, 0x00); 2666 write_nic_byte_E(dev, 0x5e, 0x80); 2667 write_nic_byte(dev, 0x17, 0x37); 2668 mdelay(10); 2669 priv->pFirmware->firmware_status = FW_STATUS_0_INIT; 2670 /* config CPUReset Register */ 2671 /* Firmware Reset or not? */ 2672 read_nic_dword(dev, CPU_GEN, &dwRegRead); 2673 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT) 2674 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */ 2675 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY) 2676 dwRegRead |= CPU_GEN_FIRMWARE_RESET; 2677 else 2678 RT_TRACE(COMP_ERR, 2679 "ERROR in %s(): undefined firmware state(%d)\n", 2680 __func__, priv->pFirmware->firmware_status); 2681 2682 write_nic_dword(dev, CPU_GEN, dwRegRead); 2683 /* config BB. */ 2684 rtl8192_BBConfig(dev); 2685 2686 /* Loopback mode or not */ 2687 priv->LoopbackMode = RTL819xU_NO_LOOPBACK; 2688 2689 read_nic_dword(dev, CPU_GEN, &dwRegRead); 2690 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK) 2691 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) | 2692 CPU_GEN_NO_LOOPBACK_SET; 2693 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK) 2694 dwRegRead |= CPU_CCK_LOOPBACK; 2695 else 2696 RT_TRACE(COMP_ERR, 2697 "Serious error in %s(): wrong loopback mode setting(%d)\n", 2698 __func__, priv->LoopbackMode); 2699 2700 write_nic_dword(dev, CPU_GEN, dwRegRead); 2701 2702 /* after reset cpu, we need wait for a seconds to write in register. */ 2703 udelay(500); 2704 2705 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */ 2706 read_nic_byte_E(dev, 0x5f, &tmp); 2707 write_nic_byte_E(dev, 0x5f, tmp | 0x20); 2708 2709 /* Set Hardware */ 2710 rtl8192_hwconfig(dev); 2711 2712 /* turn on Tx/Rx */ 2713 write_nic_byte(dev, CMDR, CR_RE | CR_TE); 2714 2715 /* set IDR0 here */ 2716 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]); 2717 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]); 2718 2719 /* set RCR */ 2720 write_nic_dword(dev, RCR, priv->ReceiveConfig); 2721 2722 /* Initialize Number of Reserved Pages in Firmware Queue */ 2723 write_nic_dword(dev, RQPN1, 2724 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT | 2725 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT | 2726 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT | 2727 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT); 2728 write_nic_dword(dev, RQPN2, 2729 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT | 2730 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT); 2731 write_nic_dword(dev, RQPN3, 2732 APPLIED_RESERVED_QUEUE_IN_FW | 2733 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT); 2734 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK)); 2735 2736 /* Set AckTimeout */ 2737 /* TODO: (it value is only for FPGA version). need to be changed!! */ 2738 write_nic_byte(dev, ACK_TIMEOUT, 0x30); 2739 2740 if (priv->ResetProgress == RESET_TYPE_NORESET) 2741 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode); 2742 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2743 CamResetAllEntry(dev); 2744 SECR_value |= SCR_TxEncEnable; 2745 SECR_value |= SCR_RxDecEnable; 2746 SECR_value |= SCR_NoSKMC; 2747 write_nic_byte(dev, SECR, SECR_value); 2748 } 2749 2750 /* Beacon related */ 2751 write_nic_word(dev, ATIMWND, 2); 2752 write_nic_word(dev, BCN_INTERVAL, 100); 2753 2754 #define DEFAULT_EDCA 0x005e4332 2755 { 2756 int i; 2757 2758 for (i = 0; i < QOS_QUEUE_NUM; i++) 2759 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA); 2760 } 2761 2762 rtl8192_phy_configmac(dev); 2763 2764 if (priv->card_8192_version == VERSION_819XU_A) { 2765 rtl8192_phy_getTxPower(dev); 2766 rtl8192_phy_setTxPower(dev, priv->chan); 2767 } 2768 2769 /* Firmware download */ 2770 init_status = init_firmware(dev); 2771 if (!init_status) { 2772 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n", 2773 __func__); 2774 return init_status; 2775 } 2776 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__); 2777 2778 /* config RF. */ 2779 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2780 rtl8192_phy_RFConfig(dev); 2781 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__); 2782 } 2783 2784 if (priv->ieee80211->FwRWRF) 2785 /* We can force firmware to do RF-R/W */ 2786 priv->Rf_Mode = RF_OP_By_FW; 2787 else 2788 priv->Rf_Mode = RF_OP_By_SW_3wire; 2789 2790 rtl8192_phy_updateInitGain(dev); 2791 /*--set CCK and OFDM Block "ON"--*/ 2792 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1); 2793 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1); 2794 2795 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2796 /* if D or C cut */ 2797 u8 tmpvalue; 2798 2799 read_nic_byte(dev, 0x301, &tmpvalue); 2800 if (tmpvalue == 0x03) { 2801 priv->bDcut = true; 2802 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n"); 2803 } else { 2804 priv->bDcut = false; 2805 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n"); 2806 } 2807 dm_initialize_txpower_tracking(dev); 2808 2809 if (priv->bDcut) { 2810 u32 i, TempCCk; 2811 u32 tmpRegA = rtl8192_QueryBBReg(dev, 2812 rOFDM0_XATxIQImbalance, 2813 bMaskDWord); 2814 2815 for (i = 0; i < TxBBGainTableLength; i++) { 2816 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) { 2817 priv->rfa_txpowertrackingindex = (u8)i; 2818 priv->rfa_txpowertrackingindex_real = 2819 (u8)i; 2820 priv->rfa_txpowertracking_default = 2821 priv->rfa_txpowertrackingindex; 2822 break; 2823 } 2824 } 2825 2826 TempCCk = rtl8192_QueryBBReg(dev, 2827 rCCK0_TxFilter1, 2828 bMaskByte2); 2829 2830 for (i = 0; i < CCKTxBBGainTableLength; i++) { 2831 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) { 2832 priv->cck_present_attenuation_20Mdefault = (u8)i; 2833 break; 2834 } 2835 } 2836 priv->cck_present_attenuation_40Mdefault = 0; 2837 priv->cck_present_attenuation_difference = 0; 2838 priv->cck_present_attenuation = 2839 priv->cck_present_attenuation_20Mdefault; 2840 } 2841 } 2842 write_nic_byte(dev, 0x87, 0x0); 2843 2844 return init_status; 2845 } 2846 2847 /* this configures registers for beacon tx and enables it via 2848 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might 2849 * be used to stop beacon transmission 2850 */ 2851 /*************************************************************************** 2852 * -------------------------------NET STUFF--------------------------- 2853 ***************************************************************************/ 2854 2855 static struct net_device_stats *rtl8192_stats(struct net_device *dev) 2856 { 2857 struct r8192_priv *priv = ieee80211_priv(dev); 2858 2859 return &priv->ieee80211->stats; 2860 } 2861 2862 static bool HalTxCheckStuck819xUsb(struct net_device *dev) 2863 { 2864 struct r8192_priv *priv = ieee80211_priv(dev); 2865 u16 RegTxCounter; 2866 bool bStuck = false; 2867 2868 read_nic_word(dev, 0x128, &RegTxCounter); 2869 RT_TRACE(COMP_RESET, 2870 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__, 2871 RegTxCounter, priv->TxCounter); 2872 if (priv->TxCounter == RegTxCounter) 2873 bStuck = true; 2874 2875 priv->TxCounter = RegTxCounter; 2876 2877 return bStuck; 2878 } 2879 2880 /* 2881 * <Assumption: RT_TX_SPINLOCK is acquired.> 2882 * First added: 2006.11.19 by emily 2883 */ 2884 static RESET_TYPE TxCheckStuck(struct net_device *dev) 2885 { 2886 struct r8192_priv *priv = ieee80211_priv(dev); 2887 u8 QueueID; 2888 bool bCheckFwTxCnt = false; 2889 2890 /* Decide such threshold according to current power save mode */ 2891 2892 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) { 2893 if (QueueID == TXCMD_QUEUE) 2894 continue; 2895 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0)) 2896 continue; 2897 2898 bCheckFwTxCnt = true; 2899 } 2900 if (bCheckFwTxCnt) { 2901 if (HalTxCheckStuck819xUsb(dev)) { 2902 RT_TRACE(COMP_RESET, 2903 "%s: Fw indicates no Tx condition!\n", 2904 __func__); 2905 return RESET_TYPE_SILENT; 2906 } 2907 } 2908 return RESET_TYPE_NORESET; 2909 } 2910 2911 static bool HalRxCheckStuck819xUsb(struct net_device *dev) 2912 { 2913 u16 RegRxCounter; 2914 struct r8192_priv *priv = ieee80211_priv(dev); 2915 bool bStuck = false; 2916 static u8 rx_chk_cnt; 2917 2918 read_nic_word(dev, 0x130, &RegRxCounter); 2919 RT_TRACE(COMP_RESET, 2920 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__, 2921 RegRxCounter, priv->RxCounter); 2922 /* If rssi is small, we should check rx for long time because of bad rx. 2923 * or maybe it will continuous silent reset every 2 seconds. 2924 */ 2925 rx_chk_cnt++; 2926 if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) { 2927 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */ 2928 } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) && 2929 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) || 2930 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) { 2931 if (rx_chk_cnt < 2) 2932 return bStuck; 2933 2934 rx_chk_cnt = 0; 2935 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) || 2936 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) && 2937 priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) { 2938 if (rx_chk_cnt < 4) 2939 return bStuck; 2940 2941 rx_chk_cnt = 0; 2942 } else { 2943 if (rx_chk_cnt < 8) 2944 return bStuck; 2945 2946 rx_chk_cnt = 0; 2947 } 2948 2949 if (priv->RxCounter == RegRxCounter) 2950 bStuck = true; 2951 2952 priv->RxCounter = RegRxCounter; 2953 2954 return bStuck; 2955 } 2956 2957 static RESET_TYPE RxCheckStuck(struct net_device *dev) 2958 { 2959 struct r8192_priv *priv = ieee80211_priv(dev); 2960 bool bRxCheck = false; 2961 2962 if (priv->IrpPendingCount > 1) 2963 bRxCheck = true; 2964 2965 if (bRxCheck) { 2966 if (HalRxCheckStuck819xUsb(dev)) { 2967 RT_TRACE(COMP_RESET, "RxStuck Condition\n"); 2968 return RESET_TYPE_SILENT; 2969 } 2970 } 2971 return RESET_TYPE_NORESET; 2972 } 2973 2974 /** 2975 * This function is called by Checkforhang to check whether we should 2976 * ask OS to reset driver 2977 * 2978 * \param pAdapter The adapter context for this miniport 2979 * 2980 * Note:NIC with USB interface sholud not call this function because we 2981 * cannot scan descriptor to judge whether there is tx stuck. 2982 * Note: This function may be required to be rewrite for Vista OS. 2983 * <<<Assumption: Tx spinlock has been acquired >>> 2984 * 2985 * 8185 and 8185b does not implement this function. 2986 */ 2987 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev) 2988 { 2989 struct r8192_priv *priv = ieee80211_priv(dev); 2990 RESET_TYPE TxResetType = RESET_TYPE_NORESET; 2991 RESET_TYPE RxResetType = RESET_TYPE_NORESET; 2992 RT_RF_POWER_STATE rfState; 2993 2994 rfState = priv->ieee80211->eRFPowerState; 2995 2996 TxResetType = TxCheckStuck(dev); 2997 if (rfState != eRfOff || 2998 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) { 2999 /* If driver is in the status of firmware download failure, 3000 * driver skips RF initialization and RF is in turned off 3001 * state. Driver should check whether Rx stuck and do silent 3002 * reset. And if driver is in firmware download failure status, 3003 * driver should initialize RF in the following silent reset 3004 * procedure 3005 * 3006 * Driver should not check RX stuck in IBSS mode because it is 3007 * required to set Check BSSID in order to send beacon, 3008 * however, if check BSSID is set, STA cannot hear any packet 3009 * at all. 3010 */ 3011 RxResetType = RxCheckStuck(dev); 3012 } 3013 if (TxResetType == RESET_TYPE_NORMAL || 3014 RxResetType == RESET_TYPE_NORMAL) { 3015 return RESET_TYPE_NORMAL; 3016 } else if (TxResetType == RESET_TYPE_SILENT || 3017 RxResetType == RESET_TYPE_SILENT) { 3018 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__); 3019 return RESET_TYPE_SILENT; 3020 } else { 3021 return RESET_TYPE_NORESET; 3022 } 3023 } 3024 3025 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv); 3026 static int _rtl8192_up(struct net_device *dev); 3027 static int rtl8192_close(struct net_device *dev); 3028 3029 static void CamRestoreAllEntry(struct net_device *dev) 3030 { 3031 u8 EntryId = 0; 3032 struct r8192_priv *priv = ieee80211_priv(dev); 3033 u8 *MacAddr = priv->ieee80211->current_network.bssid; 3034 3035 static u8 CAM_CONST_ADDR[4][6] = { 3036 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 3037 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, 3038 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, 3039 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} }; 3040 static u8 CAM_CONST_BROAD[] = { 3041 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3042 3043 RT_TRACE(COMP_SEC, "%s:\n", __func__); 3044 3045 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) || 3046 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) { 3047 for (EntryId = 0; EntryId < 4; EntryId++) { 3048 MacAddr = CAM_CONST_ADDR[EntryId]; 3049 setKey(dev, EntryId, EntryId, 3050 priv->ieee80211->pairwise_key_type, 3051 MacAddr, 0, NULL); 3052 } 3053 3054 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) { 3055 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3056 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3057 (u8 *)dev->dev_addr, 0, NULL); 3058 else 3059 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3060 MacAddr, 0, NULL); 3061 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) { 3062 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3063 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3064 (u8 *)dev->dev_addr, 0, NULL); 3065 else 3066 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3067 MacAddr, 0, NULL); 3068 } 3069 3070 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) { 3071 MacAddr = CAM_CONST_BROAD; 3072 for (EntryId = 1; EntryId < 4; EntryId++) { 3073 setKey(dev, EntryId, EntryId, 3074 priv->ieee80211->group_key_type, 3075 MacAddr, 0, NULL); 3076 } 3077 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3078 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3079 CAM_CONST_ADDR[0], 0, NULL); 3080 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) { 3081 MacAddr = CAM_CONST_BROAD; 3082 for (EntryId = 1; EntryId < 4; EntryId++) { 3083 setKey(dev, EntryId, EntryId, 3084 priv->ieee80211->group_key_type, 3085 MacAddr, 0, NULL); 3086 } 3087 3088 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3089 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3090 CAM_CONST_ADDR[0], 0, NULL); 3091 } 3092 } 3093 3094 /* This function is used to fix Tx/Rx stop bug temporarily. 3095 * This function will do "system reset" to NIC when Tx or Rx is stuck. 3096 * The method checking Tx/Rx stuck of this function is supported by FW, 3097 * which reports Tx and Rx counter to register 0x128 and 0x130. 3098 */ 3099 static void rtl819x_ifsilentreset(struct net_device *dev) 3100 { 3101 struct r8192_priv *priv = ieee80211_priv(dev); 3102 u8 reset_times = 0; 3103 int reset_status = 0; 3104 struct ieee80211_device *ieee = priv->ieee80211; 3105 3106 /* If we need to check CCK stop, please uncomment this line. */ 3107 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */ 3108 3109 if (priv->ResetProgress == RESET_TYPE_NORESET) { 3110 RESET_START: 3111 3112 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n"); 3113 3114 /* Set the variable for reset. */ 3115 priv->ResetProgress = RESET_TYPE_SILENT; 3116 mutex_lock(&priv->wx_mutex); 3117 if (priv->up == 0) { 3118 RT_TRACE(COMP_ERR, 3119 "%s():the driver is not up! return\n", 3120 __func__); 3121 mutex_unlock(&priv->wx_mutex); 3122 return; 3123 } 3124 priv->up = 0; 3125 RT_TRACE(COMP_RESET, 3126 "%s():======>start to down the driver\n", 3127 __func__); 3128 3129 rtl8192_rtx_disable(dev); 3130 rtl8192_cancel_deferred_work(priv); 3131 deinit_hal_dm(dev); 3132 del_timer_sync(&priv->watch_dog_timer); 3133 3134 ieee->sync_scan_hurryup = 1; 3135 if (ieee->state == IEEE80211_LINKED) { 3136 mutex_lock(&ieee->wx_mutex); 3137 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n"); 3138 ieee80211_stop_send_beacons(priv->ieee80211); 3139 del_timer_sync(&ieee->associate_timer); 3140 cancel_delayed_work(&ieee->associate_retry_wq); 3141 ieee80211_stop_scan(ieee); 3142 netif_carrier_off(dev); 3143 mutex_unlock(&ieee->wx_mutex); 3144 } else { 3145 netdev_dbg(dev, "ieee->state is NOT LINKED\n"); 3146 ieee80211_softmac_stop_protocol(priv->ieee80211); 3147 } 3148 mutex_unlock(&priv->wx_mutex); 3149 RT_TRACE(COMP_RESET, 3150 "%s():<==========down process is finished\n", 3151 __func__); 3152 RT_TRACE(COMP_RESET, 3153 "%s():===========>start up the driver\n", 3154 __func__); 3155 reset_status = _rtl8192_up(dev); 3156 3157 RT_TRACE(COMP_RESET, 3158 "%s():<===========up process is finished\n", 3159 __func__); 3160 if (reset_status == -EAGAIN) { 3161 if (reset_times < 3) { 3162 reset_times++; 3163 goto RESET_START; 3164 } else { 3165 RT_TRACE(COMP_ERR, 3166 " ERR!!! %s(): Reset Failed!!\n", 3167 __func__); 3168 } 3169 } 3170 ieee->is_silent_reset = 1; 3171 EnableHWSecurityConfig8192(dev); 3172 if (ieee->state == IEEE80211_LINKED && 3173 ieee->iw_mode == IW_MODE_INFRA) { 3174 ieee->set_chan(ieee->dev, 3175 ieee->current_network.channel); 3176 3177 queue_work(ieee->wq, &ieee->associate_complete_wq); 3178 3179 } else if (ieee->state == IEEE80211_LINKED && 3180 ieee->iw_mode == IW_MODE_ADHOC) { 3181 ieee->set_chan(ieee->dev, 3182 ieee->current_network.channel); 3183 ieee->link_change(ieee->dev); 3184 3185 ieee80211_start_send_beacons(ieee); 3186 3187 if (ieee->data_hard_resume) 3188 ieee->data_hard_resume(ieee->dev); 3189 netif_carrier_on(ieee->dev); 3190 } 3191 3192 CamRestoreAllEntry(dev); 3193 3194 priv->ResetProgress = RESET_TYPE_NORESET; 3195 priv->reset_count++; 3196 3197 priv->bForcedSilentReset = false; 3198 priv->bResetInProgress = false; 3199 3200 /* For test --> force write UFWP. */ 3201 write_nic_byte(dev, UFWP, 1); 3202 RT_TRACE(COMP_RESET, 3203 "Reset finished!! ====>[%d]\n", 3204 priv->reset_count); 3205 } 3206 } 3207 3208 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum, 3209 u32 *TotalRxDataNum) 3210 { 3211 u16 SlotIndex; 3212 u8 i; 3213 3214 *TotalRxBcnNum = 0; 3215 *TotalRxDataNum = 0; 3216 3217 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) % 3218 (priv->ieee80211->LinkDetectInfo.SlotNum); 3219 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] = 3220 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod; 3221 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] = 3222 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod; 3223 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) { 3224 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i]; 3225 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i]; 3226 } 3227 } 3228 3229 static void rtl819x_watchdog_wqcallback(struct work_struct *work) 3230 { 3231 struct delayed_work *dwork = to_delayed_work(work); 3232 struct r8192_priv *priv = container_of(dwork, 3233 struct r8192_priv, watch_dog_wq); 3234 struct net_device *dev = priv->ieee80211->dev; 3235 struct ieee80211_device *ieee = priv->ieee80211; 3236 RESET_TYPE ResetType = RESET_TYPE_NORESET; 3237 static u8 check_reset_cnt; 3238 bool bBusyTraffic = false; 3239 u32 TotalRxBcnNum = 0; 3240 u32 TotalRxDataNum = 0; 3241 3242 if (!priv->up) 3243 return; 3244 hal_dm_watchdog(dev); 3245 3246 /* to get busy traffic condition */ 3247 if (ieee->state == IEEE80211_LINKED) { 3248 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 || 3249 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) { 3250 bBusyTraffic = true; 3251 } 3252 ieee->LinkDetectInfo.NumRxOkInPeriod = 0; 3253 ieee->LinkDetectInfo.NumTxOkInPeriod = 0; 3254 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic; 3255 } 3256 /* for AP roaming */ 3257 if (priv->ieee80211->state == IEEE80211_LINKED && 3258 priv->ieee80211->iw_mode == IW_MODE_INFRA) { 3259 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum); 3260 if ((TotalRxBcnNum + TotalRxDataNum) == 0) { 3261 #ifdef TODO 3262 if (rfState == eRfOff) 3263 RT_TRACE(COMP_ERR, "========>%s()\n", __func__); 3264 #endif 3265 netdev_dbg(dev, 3266 "===>%s(): AP is power off, connect another one\n", 3267 __func__); 3268 priv->ieee80211->state = IEEE80211_ASSOCIATING; 3269 notify_wx_assoc_event(priv->ieee80211); 3270 RemovePeerTS(priv->ieee80211, 3271 priv->ieee80211->current_network.bssid); 3272 priv->ieee80211->link_change(dev); 3273 queue_work(priv->ieee80211->wq, 3274 &priv->ieee80211->associate_procedure_wq); 3275 } 3276 } 3277 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0; 3278 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0; 3279 /* check if reset the driver */ 3280 if (check_reset_cnt++ >= 3) { 3281 ResetType = rtl819x_ifcheck_resetornot(dev); 3282 check_reset_cnt = 3; 3283 } 3284 /* This is control by OID set in Pomelo */ 3285 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET && 3286 (priv->bForcedSilentReset || 3287 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) { 3288 RT_TRACE(COMP_RESET, 3289 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n", 3290 __func__, priv->force_reset, priv->ResetProgress, 3291 priv->bForcedSilentReset, 3292 priv->bDisableNormalResetCheck, ResetType); 3293 rtl819x_ifsilentreset(dev); 3294 } 3295 priv->force_reset = false; 3296 priv->bForcedSilentReset = false; 3297 priv->bResetInProgress = false; 3298 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n"); 3299 } 3300 3301 static void watch_dog_timer_callback(struct timer_list *t) 3302 { 3303 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer); 3304 3305 schedule_delayed_work(&priv->watch_dog_wq, 0); 3306 mod_timer(&priv->watch_dog_timer, 3307 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME)); 3308 } 3309 3310 static int _rtl8192_up(struct net_device *dev) 3311 { 3312 struct r8192_priv *priv = ieee80211_priv(dev); 3313 int init_status = 0; 3314 3315 priv->up = 1; 3316 priv->ieee80211->ieee_up = 1; 3317 RT_TRACE(COMP_INIT, "Bringing up iface"); 3318 init_status = rtl8192_adapter_start(dev); 3319 if (!init_status) { 3320 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n", 3321 __func__); 3322 priv->up = priv->ieee80211->ieee_up = 0; 3323 return -EAGAIN; 3324 } 3325 RT_TRACE(COMP_INIT, "start adapter finished\n"); 3326 rtl8192_rx_enable(dev); 3327 if (priv->ieee80211->state != IEEE80211_LINKED) 3328 ieee80211_softmac_start_protocol(priv->ieee80211); 3329 ieee80211_reset_queue(priv->ieee80211); 3330 watch_dog_timer_callback(&priv->watch_dog_timer); 3331 if (!netif_queue_stopped(dev)) 3332 netif_start_queue(dev); 3333 else 3334 netif_wake_queue(dev); 3335 3336 return 0; 3337 } 3338 3339 static int rtl8192_open(struct net_device *dev) 3340 { 3341 struct r8192_priv *priv = ieee80211_priv(dev); 3342 int ret; 3343 3344 mutex_lock(&priv->wx_mutex); 3345 ret = rtl8192_up(dev); 3346 mutex_unlock(&priv->wx_mutex); 3347 return ret; 3348 } 3349 3350 int rtl8192_up(struct net_device *dev) 3351 { 3352 struct r8192_priv *priv = ieee80211_priv(dev); 3353 3354 if (priv->up == 1) 3355 return -1; 3356 3357 return _rtl8192_up(dev); 3358 } 3359 3360 static int rtl8192_close(struct net_device *dev) 3361 { 3362 struct r8192_priv *priv = ieee80211_priv(dev); 3363 int ret; 3364 3365 mutex_lock(&priv->wx_mutex); 3366 3367 ret = rtl8192_down(dev); 3368 3369 mutex_unlock(&priv->wx_mutex); 3370 3371 return ret; 3372 } 3373 3374 int rtl8192_down(struct net_device *dev) 3375 { 3376 struct r8192_priv *priv = ieee80211_priv(dev); 3377 int i; 3378 3379 if (priv->up == 0) 3380 return -1; 3381 3382 priv->up = 0; 3383 priv->ieee80211->ieee_up = 0; 3384 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__); 3385 /* FIXME */ 3386 if (!netif_queue_stopped(dev)) 3387 netif_stop_queue(dev); 3388 3389 rtl8192_rtx_disable(dev); 3390 3391 /* Tx related queue release */ 3392 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3393 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]); 3394 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3395 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]); 3396 3397 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3398 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]); 3399 3400 /* as cancel_delayed_work will del work->timer, so if work is not 3401 * defined as struct delayed_work, it will corrupt 3402 */ 3403 rtl8192_cancel_deferred_work(priv); 3404 deinit_hal_dm(dev); 3405 del_timer_sync(&priv->watch_dog_timer); 3406 3407 ieee80211_softmac_stop_protocol(priv->ieee80211); 3408 memset(&priv->ieee80211->current_network, 0, 3409 offsetof(struct ieee80211_network, list)); 3410 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__); 3411 3412 return 0; 3413 } 3414 3415 void rtl8192_commit(struct net_device *dev) 3416 { 3417 struct r8192_priv *priv = ieee80211_priv(dev); 3418 int reset_status = 0; 3419 3420 if (priv->up == 0) 3421 return; 3422 priv->up = 0; 3423 3424 rtl8192_cancel_deferred_work(priv); 3425 del_timer_sync(&priv->watch_dog_timer); 3426 3427 ieee80211_softmac_stop_protocol(priv->ieee80211); 3428 3429 rtl8192_rtx_disable(dev); 3430 reset_status = _rtl8192_up(dev); 3431 } 3432 3433 static void rtl8192_restart(struct work_struct *work) 3434 { 3435 struct r8192_priv *priv = container_of(work, struct r8192_priv, 3436 reset_wq); 3437 struct net_device *dev = priv->ieee80211->dev; 3438 3439 mutex_lock(&priv->wx_mutex); 3440 3441 rtl8192_commit(dev); 3442 3443 mutex_unlock(&priv->wx_mutex); 3444 } 3445 3446 static void r8192_set_multicast(struct net_device *dev) 3447 { 3448 struct r8192_priv *priv = ieee80211_priv(dev); 3449 short promisc; 3450 3451 /* FIXME FIXME */ 3452 3453 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 3454 3455 if (promisc != priv->promisc) 3456 3457 priv->promisc = promisc; 3458 } 3459 3460 static int r8192_set_mac_adr(struct net_device *dev, void *mac) 3461 { 3462 struct r8192_priv *priv = ieee80211_priv(dev); 3463 struct sockaddr *addr = mac; 3464 3465 mutex_lock(&priv->wx_mutex); 3466 3467 ether_addr_copy(dev->dev_addr, addr->sa_data); 3468 3469 schedule_work(&priv->reset_wq); 3470 mutex_unlock(&priv->wx_mutex); 3471 3472 return 0; 3473 } 3474 3475 /* based on ipw2200 driver */ 3476 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 3477 { 3478 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3479 struct iwreq *wrq = (struct iwreq *)rq; 3480 int ret = -1; 3481 struct ieee80211_device *ieee = priv->ieee80211; 3482 u32 key[4]; 3483 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3484 struct iw_point *p = &wrq->u.data; 3485 struct ieee_param *ipw = NULL; 3486 3487 mutex_lock(&priv->wx_mutex); 3488 3489 if (p->length < sizeof(struct ieee_param) || !p->pointer) { 3490 ret = -EINVAL; 3491 goto out; 3492 } 3493 3494 ipw = memdup_user(p->pointer, p->length); 3495 if (IS_ERR(ipw)) { 3496 ret = PTR_ERR(ipw); 3497 goto out; 3498 } 3499 3500 switch (cmd) { 3501 case RTL_IOCTL_WPA_SUPPLICANT: 3502 /* parse here for HW security */ 3503 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) { 3504 if (ipw->u.crypt.set_tx) { 3505 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3506 ieee->pairwise_key_type = KEY_TYPE_CCMP; 3507 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3508 ieee->pairwise_key_type = KEY_TYPE_TKIP; 3509 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3510 if (ipw->u.crypt.key_len == 13) 3511 ieee->pairwise_key_type = KEY_TYPE_WEP104; 3512 else if (ipw->u.crypt.key_len == 5) 3513 ieee->pairwise_key_type = KEY_TYPE_WEP40; 3514 } else { 3515 ieee->pairwise_key_type = KEY_TYPE_NA; 3516 } 3517 3518 if (ieee->pairwise_key_type) { 3519 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3520 EnableHWSecurityConfig8192(dev); 3521 /* We fill both index entry and 4th 3522 * entry for pairwise key as in IPW 3523 * interface, adhoc will only get here, 3524 * so we need index entry for its 3525 * default key serching! 3526 */ 3527 setKey(dev, 4, ipw->u.crypt.idx, 3528 ieee->pairwise_key_type, 3529 (u8 *)ieee->ap_mac_addr, 3530 0, key); 3531 if (ieee->auth_mode != 2) 3532 setKey(dev, ipw->u.crypt.idx, 3533 ipw->u.crypt.idx, 3534 ieee->pairwise_key_type, 3535 (u8 *)ieee->ap_mac_addr, 3536 0, key); 3537 } 3538 } else { 3539 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3540 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3541 ieee->group_key_type = KEY_TYPE_CCMP; 3542 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3543 ieee->group_key_type = KEY_TYPE_TKIP; 3544 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3545 if (ipw->u.crypt.key_len == 13) 3546 ieee->group_key_type = KEY_TYPE_WEP104; 3547 else if (ipw->u.crypt.key_len == 5) 3548 ieee->group_key_type = KEY_TYPE_WEP40; 3549 } else { 3550 ieee->group_key_type = KEY_TYPE_NA; 3551 } 3552 3553 if (ieee->group_key_type) { 3554 setKey(dev, ipw->u.crypt.idx, 3555 /* KeyIndex */ 3556 ipw->u.crypt.idx, 3557 /* KeyType */ 3558 ieee->group_key_type, 3559 /* MacAddr */ 3560 broadcast_addr, 3561 /* DefaultKey */ 3562 0, 3563 /* KeyContent */ 3564 key); 3565 } 3566 } 3567 } 3568 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, 3569 &wrq->u.data); 3570 break; 3571 3572 default: 3573 ret = -EOPNOTSUPP; 3574 break; 3575 } 3576 kfree(ipw); 3577 ipw = NULL; 3578 out: 3579 mutex_unlock(&priv->wx_mutex); 3580 return ret; 3581 } 3582 3583 static u8 HwRateToMRate90(bool bIsHT, u8 rate) 3584 { 3585 u8 ret_rate = 0xff; 3586 3587 if (!bIsHT) { 3588 switch (rate) { 3589 case DESC90_RATE1M: 3590 ret_rate = MGN_1M; 3591 break; 3592 case DESC90_RATE2M: 3593 ret_rate = MGN_2M; 3594 break; 3595 case DESC90_RATE5_5M: 3596 ret_rate = MGN_5_5M; 3597 break; 3598 case DESC90_RATE11M: 3599 ret_rate = MGN_11M; 3600 break; 3601 case DESC90_RATE6M: 3602 ret_rate = MGN_6M; 3603 break; 3604 case DESC90_RATE9M: 3605 ret_rate = MGN_9M; 3606 break; 3607 case DESC90_RATE12M: 3608 ret_rate = MGN_12M; 3609 break; 3610 case DESC90_RATE18M: 3611 ret_rate = MGN_18M; 3612 break; 3613 case DESC90_RATE24M: 3614 ret_rate = MGN_24M; 3615 break; 3616 case DESC90_RATE36M: 3617 ret_rate = MGN_36M; 3618 break; 3619 case DESC90_RATE48M: 3620 ret_rate = MGN_48M; 3621 break; 3622 case DESC90_RATE54M: 3623 ret_rate = MGN_54M; 3624 break; 3625 3626 default: 3627 ret_rate = 0xff; 3628 RT_TRACE(COMP_RECV, 3629 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3630 __func__, rate, bIsHT); 3631 break; 3632 } 3633 3634 } else { 3635 switch (rate) { 3636 case DESC90_RATEMCS0: 3637 ret_rate = MGN_MCS0; 3638 break; 3639 case DESC90_RATEMCS1: 3640 ret_rate = MGN_MCS1; 3641 break; 3642 case DESC90_RATEMCS2: 3643 ret_rate = MGN_MCS2; 3644 break; 3645 case DESC90_RATEMCS3: 3646 ret_rate = MGN_MCS3; 3647 break; 3648 case DESC90_RATEMCS4: 3649 ret_rate = MGN_MCS4; 3650 break; 3651 case DESC90_RATEMCS5: 3652 ret_rate = MGN_MCS5; 3653 break; 3654 case DESC90_RATEMCS6: 3655 ret_rate = MGN_MCS6; 3656 break; 3657 case DESC90_RATEMCS7: 3658 ret_rate = MGN_MCS7; 3659 break; 3660 case DESC90_RATEMCS8: 3661 ret_rate = MGN_MCS8; 3662 break; 3663 case DESC90_RATEMCS9: 3664 ret_rate = MGN_MCS9; 3665 break; 3666 case DESC90_RATEMCS10: 3667 ret_rate = MGN_MCS10; 3668 break; 3669 case DESC90_RATEMCS11: 3670 ret_rate = MGN_MCS11; 3671 break; 3672 case DESC90_RATEMCS12: 3673 ret_rate = MGN_MCS12; 3674 break; 3675 case DESC90_RATEMCS13: 3676 ret_rate = MGN_MCS13; 3677 break; 3678 case DESC90_RATEMCS14: 3679 ret_rate = MGN_MCS14; 3680 break; 3681 case DESC90_RATEMCS15: 3682 ret_rate = MGN_MCS15; 3683 break; 3684 case DESC90_RATEMCS32: 3685 ret_rate = 0x80 | 0x20; 3686 break; 3687 3688 default: 3689 ret_rate = 0xff; 3690 RT_TRACE(COMP_RECV, 3691 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3692 __func__, rate, bIsHT); 3693 break; 3694 } 3695 } 3696 3697 return ret_rate; 3698 } 3699 3700 /** 3701 * Function: UpdateRxPktTimeStamp 3702 * Overview: Record the TSF time stamp when receiving a packet 3703 * 3704 * Input: 3705 * PADAPTER Adapter 3706 * PRT_RFD pRfd, 3707 * 3708 * Output: 3709 * PRT_RFD pRfd 3710 * (pRfd->Status.TimeStampHigh is updated) 3711 * (pRfd->Status.TimeStampLow is updated) 3712 * Return: 3713 * None 3714 */ 3715 static void UpdateRxPktTimeStamp8190(struct net_device *dev, 3716 struct ieee80211_rx_stats *stats) 3717 { 3718 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3719 3720 if (stats->bIsAMPDU && !stats->bFirstMPDU) { 3721 stats->mac_time[0] = priv->LastRxDescTSFLow; 3722 stats->mac_time[1] = priv->LastRxDescTSFHigh; 3723 } else { 3724 priv->LastRxDescTSFLow = stats->mac_time[0]; 3725 priv->LastRxDescTSFHigh = stats->mac_time[1]; 3726 } 3727 } 3728 3729 /* 0-100 index. */ 3730 static long rtl819x_translate_todbm(u8 signal_strength_index) 3731 { 3732 long signal_power; /* in dBm. */ 3733 3734 /* Translate to dBm (x=0.5y-95). */ 3735 signal_power = (long)((signal_strength_index + 1) >> 1); 3736 signal_power -= 95; 3737 3738 return signal_power; 3739 } 3740 3741 /* We can not declare RSSI/EVM total value of sliding window to 3742 * be a local static. Otherwise, it may increase when we return from S3/S4. The 3743 * value will be kept in memory or disk. Declare the value in the adaptor 3744 * and it will be reinitialized when returned from S3/S4. 3745 */ 3746 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer, 3747 struct ieee80211_rx_stats *pprevious_stats, 3748 struct ieee80211_rx_stats *pcurrent_stats) 3749 { 3750 bool bcheck = false; 3751 u8 rfpath; 3752 u32 nspatial_stream, tmp_val; 3753 static u32 slide_rssi_index, slide_rssi_statistics; 3754 static u32 slide_evm_index, slide_evm_statistics; 3755 static u32 last_rssi, last_evm; 3756 3757 static u32 slide_beacon_adc_pwdb_index; 3758 static u32 slide_beacon_adc_pwdb_statistics; 3759 static u32 last_beacon_adc_pwdb; 3760 3761 struct rtl_80211_hdr_3addr *hdr; 3762 u16 sc; 3763 unsigned int seq; 3764 3765 hdr = (struct rtl_80211_hdr_3addr *)buffer; 3766 sc = le16_to_cpu(hdr->seq_ctl); 3767 seq = WLAN_GET_SEQ_SEQ(sc); 3768 /* to record the sequence number */ 3769 pcurrent_stats->Seq_Num = seq; 3770 3771 /* Check whether we should take the previous packet into accounting */ 3772 if (!pprevious_stats->bIsAMPDU) { 3773 /* if previous packet is not aggregated packet */ 3774 bcheck = true; 3775 } 3776 3777 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 3778 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX; 3779 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index]; 3780 priv->stats.slide_rssi_total -= last_rssi; 3781 } 3782 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength; 3783 3784 priv->stats.slide_signal_strength[slide_rssi_index++] = 3785 pprevious_stats->SignalStrength; 3786 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX) 3787 slide_rssi_index = 0; 3788 3789 /* <1> Showed on UI for user, in dbm */ 3790 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics; 3791 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val); 3792 pcurrent_stats->rssi = priv->stats.signal_strength; 3793 3794 /* If the previous packet does not match the criteria, neglect it */ 3795 if (!pprevious_stats->bPacketMatchBSSID) { 3796 if (!pprevious_stats->bToSelfBA) 3797 return; 3798 } 3799 3800 if (!bcheck) 3801 return; 3802 3803 /* only rtl8190 supported 3804 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats); 3805 */ 3806 3807 /* Check RSSI */ 3808 priv->stats.num_process_phyinfo++; 3809 3810 /* record the general signal strength to the sliding window. */ 3811 3812 /* <2> Showed on UI for engineering 3813 * hardware does not provide rssi information for each rf path in CCK 3814 */ 3815 if (!pprevious_stats->bIsCCK && 3816 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) { 3817 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) { 3818 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, 3819 rfpath)) 3820 continue; 3821 if (priv->stats.rx_rssi_percentage[rfpath] == 0) 3822 priv->stats.rx_rssi_percentage[rfpath] = 3823 pprevious_stats->RxMIMOSignalStrength[rfpath]; 3824 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) { 3825 priv->stats.rx_rssi_percentage[rfpath] = 3826 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + 3827 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); 3828 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1; 3829 } else { 3830 priv->stats.rx_rssi_percentage[rfpath] = 3831 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + 3832 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); 3833 } 3834 RT_TRACE(COMP_DBG, 3835 "priv->stats.rx_rssi_percentage[rfPath] = %d\n", 3836 priv->stats.rx_rssi_percentage[rfpath]); 3837 } 3838 } 3839 3840 /* Check PWDB. */ 3841 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 3842 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 3843 pprevious_stats->RxPWDBAll); 3844 3845 if (pprevious_stats->bPacketBeacon) { 3846 /* record the beacon pwdb to the sliding window. */ 3847 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) { 3848 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX; 3849 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index]; 3850 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb; 3851 } 3852 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll; 3853 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll; 3854 slide_beacon_adc_pwdb_index++; 3855 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX) 3856 slide_beacon_adc_pwdb_index = 0; 3857 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics; 3858 if (pprevious_stats->RxPWDBAll >= 3) 3859 pprevious_stats->RxPWDBAll -= 3; 3860 } 3861 3862 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 3863 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 3864 pprevious_stats->RxPWDBAll); 3865 3866 if (pprevious_stats->bPacketToSelf || 3867 pprevious_stats->bPacketBeacon || 3868 pprevious_stats->bToSelfBA) { 3869 if (priv->undecorated_smoothed_pwdb < 0) 3870 /* initialize */ 3871 priv->undecorated_smoothed_pwdb = 3872 pprevious_stats->RxPWDBAll; 3873 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) { 3874 priv->undecorated_smoothed_pwdb = 3875 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + 3876 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); 3877 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1; 3878 } else { 3879 priv->undecorated_smoothed_pwdb = 3880 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + 3881 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); 3882 } 3883 } 3884 3885 /* Check EVM */ 3886 /* record the general EVM to the sliding window. */ 3887 if (pprevious_stats->SignalQuality) { 3888 if (pprevious_stats->bPacketToSelf || 3889 pprevious_stats->bPacketBeacon || 3890 pprevious_stats->bToSelfBA) { 3891 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 3892 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX; 3893 last_evm = priv->stats.slide_evm[slide_evm_index]; 3894 priv->stats.slide_evm_total -= last_evm; 3895 } 3896 3897 priv->stats.slide_evm_total += 3898 pprevious_stats->SignalQuality; 3899 3900 priv->stats.slide_evm[slide_evm_index++] = 3901 pprevious_stats->SignalQuality; 3902 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX) 3903 slide_evm_index = 0; 3904 3905 /* <1> Showed on UI for user, in percentage. */ 3906 tmp_val = priv->stats.slide_evm_total / 3907 slide_evm_statistics; 3908 priv->stats.signal_quality = tmp_val; 3909 /* Showed on UI for user in Windows Vista, 3910 * for Link quality. 3911 */ 3912 priv->stats.last_signal_strength_inpercent = tmp_val; 3913 } 3914 3915 /* <2> Showed on UI for engineering */ 3916 if (pprevious_stats->bPacketToSelf || 3917 pprevious_stats->bPacketBeacon || 3918 pprevious_stats->bToSelfBA) { 3919 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */ 3920 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) { 3921 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */ 3922 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream]; 3923 priv->stats.rx_evm_percentage[nspatial_stream] = 3924 ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) + 3925 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR); 3926 } 3927 } 3928 } 3929 } 3930 } 3931 3932 /*----------------------------------------------------------------------------- 3933 * Function: rtl819x_query_rxpwrpercentage() 3934 * 3935 * Overview: 3936 * 3937 * Input: char antpower 3938 * 3939 * Output: NONE 3940 * 3941 * Return: 0-100 percentage 3942 *--------------------------------------------------------------------------- 3943 */ 3944 static u8 rtl819x_query_rxpwrpercentage(s8 antpower) 3945 { 3946 if ((antpower <= -100) || (antpower >= 20)) 3947 return 0; 3948 else if (antpower >= 0) 3949 return 100; 3950 else 3951 return 100 + antpower; 3952 3953 } /* QueryRxPwrPercentage */ 3954 3955 static u8 rtl819x_evm_dbtopercentage(s8 value) 3956 { 3957 s8 ret_val = clamp(-value, 0, 33) * 3; 3958 3959 if (ret_val == 99) 3960 ret_val = 100; 3961 3962 return ret_val; 3963 } 3964 3965 /* We want good-looking for signal strength/quality */ 3966 static long rtl819x_signal_scale_mapping(long currsig) 3967 { 3968 long retsig; 3969 3970 /* Step 1. Scale mapping. */ 3971 if (currsig >= 61 && currsig <= 100) 3972 retsig = 90 + ((currsig - 60) / 4); 3973 else if (currsig >= 41 && currsig <= 60) 3974 retsig = 78 + ((currsig - 40) / 2); 3975 else if (currsig >= 31 && currsig <= 40) 3976 retsig = 66 + (currsig - 30); 3977 else if (currsig >= 21 && currsig <= 30) 3978 retsig = 54 + (currsig - 20); 3979 else if (currsig >= 5 && currsig <= 20) 3980 retsig = 42 + (((currsig - 5) * 2) / 3); 3981 else if (currsig == 4) 3982 retsig = 36; 3983 else if (currsig == 3) 3984 retsig = 27; 3985 else if (currsig == 2) 3986 retsig = 18; 3987 else if (currsig == 1) 3988 retsig = 9; 3989 else 3990 retsig = currsig; 3991 3992 return retsig; 3993 } 3994 3995 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo) 3996 { 3997 if (pdrvinfo->RxHT) 3998 return false; 3999 4000 switch (pdrvinfo->RxRate) { 4001 case DESC90_RATE1M: 4002 case DESC90_RATE2M: 4003 case DESC90_RATE5_5M: 4004 case DESC90_RATE11M: 4005 return true; 4006 default: 4007 return false; 4008 } 4009 } 4010 4011 static void rtl8192_query_rxphystatus(struct r8192_priv *priv, 4012 struct ieee80211_rx_stats *pstats, 4013 struct rx_drvinfo_819x_usb *pdrvinfo, 4014 struct ieee80211_rx_stats *precord_stats, 4015 bool bpacket_match_bssid, 4016 bool bpacket_toself, 4017 bool bPacketBeacon, 4018 bool bToSelfBA) 4019 { 4020 phy_sts_ofdm_819xusb_t *pofdm_buf; 4021 phy_sts_cck_819xusb_t *pcck_buf; 4022 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc; 4023 u8 *prxpkt; 4024 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg; 4025 s8 rx_pwr[4], rx_pwr_all = 0; 4026 s8 rx_snrX, rx_evmX; 4027 u8 evm, pwdb_all; 4028 u32 RSSI, total_rssi = 0; 4029 u8 is_cck_rate = 0; 4030 u8 rf_rx_num = 0; 4031 u8 sq; 4032 4033 priv->stats.numqry_phystatus++; 4034 4035 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo); 4036 4037 /* Record it for next packet processing */ 4038 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats)); 4039 pstats->bPacketMatchBSSID = 4040 precord_stats->bPacketMatchBSSID = bpacket_match_bssid; 4041 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself; 4042 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate; 4043 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon; 4044 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA; 4045 4046 prxpkt = (u8 *)pdrvinfo; 4047 4048 /* Move pointer to the 16th bytes. Phy status start address. */ 4049 prxpkt += sizeof(struct rx_drvinfo_819x_usb); 4050 4051 /* Initial the cck and ofdm buffer pointer */ 4052 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt; 4053 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt; 4054 4055 pstats->RxMIMOSignalQuality[0] = -1; 4056 pstats->RxMIMOSignalQuality[1] = -1; 4057 precord_stats->RxMIMOSignalQuality[0] = -1; 4058 precord_stats->RxMIMOSignalQuality[1] = -1; 4059 4060 if (is_cck_rate) { 4061 /* (1)Hardware does not provide RSSI for CCK */ 4062 4063 /* (2)PWDB, Average PWDB calculated by hardware 4064 * (for rate adaptive) 4065 */ 4066 u8 report; 4067 4068 priv->stats.numqry_phystatusCCK++; 4069 4070 if (!priv->bCckHighPower) { 4071 report = pcck_buf->cck_agc_rpt & 0xc0; 4072 report >>= 6; 4073 switch (report) { 4074 case 0x3: 4075 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e); 4076 break; 4077 case 0x2: 4078 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e); 4079 break; 4080 case 0x1: 4081 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e); 4082 break; 4083 case 0x0: 4084 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e); 4085 break; 4086 } 4087 } else { 4088 report = pcck_buf->cck_agc_rpt & 0x60; 4089 report >>= 5; 4090 switch (report) { 4091 case 0x3: 4092 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4093 break; 4094 case 0x2: 4095 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4096 break; 4097 case 0x1: 4098 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4099 break; 4100 case 0x0: 4101 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4102 break; 4103 } 4104 } 4105 4106 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4107 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4108 pstats->RecvSignalPower = pwdb_all; 4109 4110 /* (3) Get Signal Quality (EVM) */ 4111 4112 if (pstats->RxPWDBAll > 40) { 4113 sq = 100; 4114 } else { 4115 sq = pcck_buf->sq_rpt; 4116 4117 if (pcck_buf->sq_rpt > 64) 4118 sq = 0; 4119 else if (pcck_buf->sq_rpt < 20) 4120 sq = 100; 4121 else 4122 sq = ((64 - sq) * 100) / 44; 4123 } 4124 pstats->SignalQuality = precord_stats->SignalQuality = sq; 4125 pstats->RxMIMOSignalQuality[0] = 4126 precord_stats->RxMIMOSignalQuality[0] = sq; 4127 pstats->RxMIMOSignalQuality[1] = 4128 precord_stats->RxMIMOSignalQuality[1] = -1; 4129 4130 } else { 4131 priv->stats.numqry_phystatusHT++; 4132 4133 /* (1)Get RSSI for HT rate */ 4134 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) { 4135 /* We will judge RF RX path now. */ 4136 if (priv->brfpath_rxenable[i]) 4137 rf_rx_num++; 4138 else 4139 continue; 4140 4141 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, i)) 4142 continue; 4143 4144 rx_pwr[i] = 4145 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106; 4146 4147 /* Get Rx snr value in DB */ 4148 tmp_rxsnr = pofdm_buf->rxsnr_X[i]; 4149 rx_snrX = (s8)(tmp_rxsnr); 4150 rx_snrX /= 2; 4151 priv->stats.rxSNRdB[i] = (long)rx_snrX; 4152 4153 /* Translate DBM to percentage. */ 4154 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]); 4155 total_rssi += RSSI; 4156 4157 /* Record Signal Strength for next packet */ 4158 pstats->RxMIMOSignalStrength[i] = (u8)RSSI; 4159 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI; 4160 } 4161 4162 /* (2)PWDB, Average PWDB calculated by hardware 4163 * (for rate adaptive) 4164 */ 4165 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106; 4166 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4167 4168 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4169 pstats->RxPower = precord_stats->RxPower = rx_pwr_all; 4170 4171 /* (3)EVM of HT rate */ 4172 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 && 4173 pdrvinfo->RxRate <= DESC90_RATEMCS15) 4174 /* both spatial stream make sense */ 4175 max_spatial_stream = 2; 4176 else 4177 /* only spatial stream 1 makes sense */ 4178 max_spatial_stream = 1; 4179 4180 for (i = 0; i < max_spatial_stream; i++) { 4181 tmp_rxevm = pofdm_buf->rxevm_X[i]; 4182 rx_evmX = (s8)(tmp_rxevm); 4183 4184 /* Do not use shift operation like "rx_evmX >>= 1" 4185 * because the compiler of free build environment will 4186 * set the most significant bit to "zero" when doing 4187 * shifting operation which may change a negative value 4188 * to positive one, then the dbm value (which is 4189 * supposed to be negative) is not correct anymore. 4190 */ 4191 rx_evmX /= 2; /* dbm */ 4192 4193 evm = rtl819x_evm_dbtopercentage(rx_evmX); 4194 if (i == 0) 4195 /* Fill value in RFD, Get the first spatial 4196 * stream only 4197 */ 4198 pstats->SignalQuality = 4199 precord_stats->SignalQuality = 4200 evm & 0xff; 4201 pstats->RxMIMOSignalQuality[i] = 4202 precord_stats->RxMIMOSignalQuality[i] = 4203 evm & 0xff; 4204 } 4205 4206 /* record rx statistics for debug */ 4207 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg; 4208 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *) 4209 &rxsc_sgien_exflg; 4210 if (pdrvinfo->BW) /* 40M channel */ 4211 priv->stats.received_bwtype[1 + prxsc->rxsc]++; 4212 else /* 20M channel */ 4213 priv->stats.received_bwtype[0]++; 4214 } 4215 4216 /* UI BSS List signal strength(in percentage), make it good looking, 4217 * from 0~100. It is assigned to the BSS List in 4218 * GetValueFromBeaconOrProbeRsp(). 4219 */ 4220 if (is_cck_rate) { 4221 pstats->SignalStrength = 4222 precord_stats->SignalStrength = 4223 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all)); 4224 } else { 4225 /* We can judge RX path number now. */ 4226 if (rf_rx_num != 0) { 4227 pstats->SignalStrength = 4228 precord_stats->SignalStrength = 4229 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num))); 4230 } 4231 } 4232 } /* QueryRxPhyStatus8190Pci */ 4233 4234 static void rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats *psrc_stats, 4235 struct ieee80211_rx_stats *ptarget_stats) 4236 { 4237 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU; 4238 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU; 4239 ptarget_stats->Seq_Num = psrc_stats->Seq_Num; 4240 } 4241 4242 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb, 4243 struct ieee80211_rx_stats *pstats, 4244 struct rx_drvinfo_819x_usb *pdrvinfo) 4245 { 4246 /* TODO: We must only check packet for current MAC address. 4247 * Not finish 4248 */ 4249 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4250 struct net_device *dev = info->dev; 4251 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4252 bool bpacket_match_bssid, bpacket_toself; 4253 bool bPacketBeacon = false, bToSelfBA = false; 4254 static struct ieee80211_rx_stats previous_stats; 4255 struct rtl_80211_hdr_3addr *hdr; 4256 u16 fc, type; 4257 4258 /* Get Signal Quality for only RX data queue (but not command queue) */ 4259 4260 u8 *tmp_buf; 4261 u8 *praddr; 4262 4263 /* Get MAC frame start address. */ 4264 tmp_buf = (u8 *)skb->data; 4265 4266 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf; 4267 fc = le16_to_cpu(hdr->frame_ctl); 4268 type = WLAN_FC_GET_TYPE(fc); 4269 praddr = hdr->addr1; 4270 4271 /* Check if the received packet is acceptable. */ 4272 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) && 4273 (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3)) 4274 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV); 4275 bpacket_toself = bpacket_match_bssid & 4276 (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr)); 4277 4278 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON) 4279 bPacketBeacon = true; 4280 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) { 4281 if ((ether_addr_equal(praddr, dev->dev_addr))) 4282 bToSelfBA = true; 4283 } 4284 4285 if (bpacket_match_bssid) 4286 priv->stats.numpacket_matchbssid++; 4287 if (bpacket_toself) 4288 priv->stats.numpacket_toself++; 4289 /* Process PHY information for previous packet (RSSI/PWDB/EVM) 4290 * Because phy information is contained in the last packet of AMPDU 4291 * only, so driver should process phy information of previous packet 4292 */ 4293 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats); 4294 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats, 4295 bpacket_match_bssid, bpacket_toself, 4296 bPacketBeacon, bToSelfBA); 4297 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats); 4298 } 4299 4300 /** 4301 * Function: UpdateReceivedRateHistogramStatistics 4302 * Overview: Record the received data rate 4303 * 4304 * Input: 4305 * struct net_device *dev 4306 * struct ieee80211_rx_stats *stats 4307 * 4308 * Output: 4309 * 4310 * (priv->stats.ReceivedRateHistogram[] is updated) 4311 * Return: 4312 * None 4313 */ 4314 static void 4315 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev, 4316 struct ieee80211_rx_stats *stats) 4317 { 4318 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4319 /* 0: Total, 1:OK, 2:CRC, 3:ICV */ 4320 u32 rcvType = 1; 4321 u32 rateIndex; 4322 /* 1: short preamble/GI, 0: long preamble/GI */ 4323 u32 preamble_guardinterval; 4324 4325 if (stats->bCRC) 4326 rcvType = 2; 4327 else if (stats->bICV) 4328 rcvType = 3; 4329 4330 if (stats->bShortPreamble) 4331 preamble_guardinterval = 1; /* short */ 4332 else 4333 preamble_guardinterval = 0; /* long */ 4334 4335 switch (stats->rate) { 4336 /* CCK rate */ 4337 case MGN_1M: 4338 rateIndex = 0; 4339 break; 4340 case MGN_2M: 4341 rateIndex = 1; 4342 break; 4343 case MGN_5_5M: 4344 rateIndex = 2; 4345 break; 4346 case MGN_11M: 4347 rateIndex = 3; 4348 break; 4349 /* Legacy OFDM rate */ 4350 case MGN_6M: 4351 rateIndex = 4; 4352 break; 4353 case MGN_9M: 4354 rateIndex = 5; 4355 break; 4356 case MGN_12M: 4357 rateIndex = 6; 4358 break; 4359 case MGN_18M: 4360 rateIndex = 7; 4361 break; 4362 case MGN_24M: 4363 rateIndex = 8; 4364 break; 4365 case MGN_36M: 4366 rateIndex = 9; 4367 break; 4368 case MGN_48M: 4369 rateIndex = 10; 4370 break; 4371 case MGN_54M: 4372 rateIndex = 11; 4373 break; 4374 /* 11n High throughput rate */ 4375 case MGN_MCS0: 4376 rateIndex = 12; 4377 break; 4378 case MGN_MCS1: 4379 rateIndex = 13; 4380 break; 4381 case MGN_MCS2: 4382 rateIndex = 14; 4383 break; 4384 case MGN_MCS3: 4385 rateIndex = 15; 4386 break; 4387 case MGN_MCS4: 4388 rateIndex = 16; 4389 break; 4390 case MGN_MCS5: 4391 rateIndex = 17; 4392 break; 4393 case MGN_MCS6: 4394 rateIndex = 18; 4395 break; 4396 case MGN_MCS7: 4397 rateIndex = 19; 4398 break; 4399 case MGN_MCS8: 4400 rateIndex = 20; 4401 break; 4402 case MGN_MCS9: 4403 rateIndex = 21; 4404 break; 4405 case MGN_MCS10: 4406 rateIndex = 22; 4407 break; 4408 case MGN_MCS11: 4409 rateIndex = 23; 4410 break; 4411 case MGN_MCS12: 4412 rateIndex = 24; 4413 break; 4414 case MGN_MCS13: 4415 rateIndex = 25; 4416 break; 4417 case MGN_MCS14: 4418 rateIndex = 26; 4419 break; 4420 case MGN_MCS15: 4421 rateIndex = 27; 4422 break; 4423 default: 4424 rateIndex = 28; 4425 break; 4426 } 4427 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++; 4428 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */ 4429 priv->stats.received_rate_histogram[rcvType][rateIndex]++; 4430 } 4431 4432 static void query_rxdesc_status(struct sk_buff *skb, 4433 struct ieee80211_rx_stats *stats, 4434 bool bIsRxAggrSubframe) 4435 { 4436 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4437 struct net_device *dev = info->dev; 4438 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4439 struct rx_drvinfo_819x_usb *driver_info = NULL; 4440 4441 /* Get Rx Descriptor Information */ 4442 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; 4443 4444 stats->Length = desc->Length; 4445 stats->RxDrvInfoSize = desc->RxDrvInfoSize; 4446 stats->RxBufShift = 0; 4447 stats->bICV = desc->ICV; 4448 stats->bCRC = desc->CRC32; 4449 stats->bHwError = stats->bCRC | stats->bICV; 4450 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */ 4451 stats->Decrypted = !desc->SWDec; 4452 4453 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) && 4454 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP)) 4455 stats->bHwError = false; 4456 else 4457 stats->bHwError = stats->bCRC | stats->bICV; 4458 4459 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE) 4460 stats->bHwError |= 1; 4461 /* Get Driver Info */ 4462 /* TODO: Need to verify it on FGPA platform 4463 * Driver info are written to the RxBuffer following rx desc 4464 */ 4465 if (stats->RxDrvInfoSize != 0) { 4466 driver_info = (struct rx_drvinfo_819x_usb *)(skb->data 4467 + sizeof(struct rx_desc_819x_usb) 4468 + stats->RxBufShift 4469 ); 4470 /* unit: 0.5M */ 4471 /* TODO */ 4472 if (!stats->bHwError) { 4473 u8 ret_rate; 4474 4475 ret_rate = HwRateToMRate90(driver_info->RxHT, 4476 driver_info->RxRate); 4477 if (ret_rate == 0xff) { 4478 /* Abnormal Case: Receive CRC OK packet with Rx 4479 * descriptor indicating non supported rate. 4480 * Special Error Handling here 4481 */ 4482 4483 stats->bHwError = 1; 4484 /* Set 1M rate by default */ 4485 stats->rate = MGN_1M; 4486 } else { 4487 stats->rate = ret_rate; 4488 } 4489 } else { 4490 stats->rate = 0x02; 4491 } 4492 4493 stats->bShortPreamble = driver_info->SPLCP; 4494 4495 UpdateReceivedRateHistogramStatistics8190(dev, stats); 4496 4497 stats->bIsAMPDU = (driver_info->PartAggr == 1); 4498 stats->bFirstMPDU = (driver_info->PartAggr == 1) && 4499 (driver_info->FirstAGGR == 1); 4500 stats->TimeStampLow = driver_info->TSFL; 4501 4502 UpdateRxPktTimeStamp8190(dev, stats); 4503 4504 /* Rx A-MPDU */ 4505 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1) 4506 RT_TRACE(COMP_RXDESC, 4507 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n", 4508 driver_info->FirstAGGR, driver_info->PartAggr); 4509 } 4510 4511 skb_pull(skb, sizeof(struct rx_desc_819x_usb)); 4512 /* Get Total offset of MPDU Frame Body */ 4513 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) { 4514 stats->bShift = 1; 4515 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize); 4516 } 4517 4518 if (driver_info) { 4519 stats->RxIs40MHzPacket = driver_info->BW; 4520 TranslateRxSignalStuff819xUsb(skb, stats, driver_info); 4521 } 4522 } 4523 4524 static void rtl8192_rx_nomal(struct sk_buff *skb) 4525 { 4526 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4527 struct net_device *dev = info->dev; 4528 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4529 struct ieee80211_rx_stats stats = { 4530 .signal = 0, 4531 .noise = 0x100 - 98, 4532 .rate = 0, 4533 .freq = IEEE80211_24GHZ_BAND, 4534 }; 4535 u32 rx_pkt_len = 0; 4536 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL; 4537 bool unicast_packet = false; 4538 4539 /* 20 is for ps-poll */ 4540 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4541 /* first packet should not contain Rx aggregation header */ 4542 query_rxdesc_status(skb, &stats, false); 4543 /* TODO */ 4544 /* hardware related info */ 4545 /* Process the MPDU received */ 4546 skb_trim(skb, skb->len - 4/*sCrcLng*/); 4547 4548 rx_pkt_len = skb->len; 4549 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data; 4550 unicast_packet = false; 4551 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) { 4552 /* TODO */ 4553 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) { 4554 /* TODO */ 4555 } else { 4556 /* unicast packet */ 4557 unicast_packet = true; 4558 } 4559 4560 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) { 4561 dev_kfree_skb_any(skb); 4562 } else { 4563 priv->stats.rxoktotal++; 4564 if (unicast_packet) 4565 priv->stats.rxbytesunicast += rx_pkt_len; 4566 } 4567 } else { 4568 priv->stats.rxurberr++; 4569 netdev_dbg(dev, "actual_length: %d\n", skb->len); 4570 dev_kfree_skb_any(skb); 4571 } 4572 } 4573 4574 static void rtl819xusb_process_received_packet(struct net_device *dev, 4575 struct ieee80211_rx_stats *pstats) 4576 { 4577 struct r8192_priv *priv = ieee80211_priv(dev); 4578 4579 /* Get shifted bytes of Starting address of 802.11 header. */ 4580 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats); 4581 #ifdef TODO /* about HCT */ 4582 if (!Adapter->bInHctTest) 4583 CountRxErrStatistics(Adapter, pRfd); 4584 #endif 4585 #ifdef ENABLE_PS /* for adding ps function in future */ 4586 RT_RF_POWER_STATE rtState; 4587 /* When RF is off, we should not count the packet for hw/sw synchronize 4588 * reason, ie. there may be a duration while sw switch is changed and 4589 * hw switch is being changed. 4590 */ 4591 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE, 4592 (u8 *)(&rtState)); 4593 if (rtState == eRfOff) 4594 return; 4595 #endif 4596 priv->stats.rxframgment++; 4597 4598 #ifdef TODO 4599 RmMonitorSignalStrength(Adapter, pRfd); 4600 #endif 4601 /* We have to release RFD and return if rx pkt is cmd pkt. */ 4602 if (rtl819xusb_rx_command_packet(dev, pstats)) 4603 return; 4604 4605 #ifdef SW_CRC_CHECK 4606 SwCrcCheck(); 4607 #endif 4608 } 4609 4610 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb, 4611 struct ieee80211_rx_stats *stats) 4612 { 4613 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; 4614 4615 /* Get Rx Descriptor Information */ 4616 stats->virtual_address = (u8 *)skb->data; 4617 stats->Length = desc->Length; 4618 stats->RxDrvInfoSize = 0; 4619 stats->RxBufShift = 0; 4620 stats->packetlength = stats->Length - scrclng; 4621 stats->fraglength = stats->packetlength; 4622 stats->fragoffset = 0; 4623 stats->ntotalfrag = 1; 4624 } 4625 4626 static void rtl8192_rx_cmd(struct sk_buff *skb) 4627 { 4628 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4629 struct net_device *dev = info->dev; 4630 /* TODO */ 4631 struct ieee80211_rx_stats stats = { 4632 .signal = 0, 4633 .noise = 0x100 - 98, 4634 .rate = 0, 4635 .freq = IEEE80211_24GHZ_BAND, 4636 }; 4637 4638 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4639 query_rx_cmdpkt_desc_status(skb, &stats); 4640 /* prfd->queue_id = 1; */ 4641 4642 /* Process the command packet received. */ 4643 4644 rtl819xusb_process_received_packet(dev, &stats); 4645 4646 dev_kfree_skb_any(skb); 4647 } 4648 } 4649 4650 static void rtl8192_irq_rx_tasklet(unsigned long data) 4651 { 4652 struct r8192_priv *priv = (struct r8192_priv *)data; 4653 struct sk_buff *skb; 4654 struct rtl8192_rx_info *info; 4655 4656 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) { 4657 info = (struct rtl8192_rx_info *)skb->cb; 4658 switch (info->out_pipe) { 4659 /* Nomal packet pipe */ 4660 case 3: 4661 priv->IrpPendingCount--; 4662 rtl8192_rx_nomal(skb); 4663 break; 4664 4665 /* Command packet pipe */ 4666 case 9: 4667 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n", 4668 info->out_pipe); 4669 4670 rtl8192_rx_cmd(skb); 4671 break; 4672 4673 default: /* should never get here! */ 4674 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n", 4675 info->out_pipe); 4676 dev_kfree_skb(skb); 4677 break; 4678 } 4679 } 4680 } 4681 4682 static const struct net_device_ops rtl8192_netdev_ops = { 4683 .ndo_open = rtl8192_open, 4684 .ndo_stop = rtl8192_close, 4685 .ndo_get_stats = rtl8192_stats, 4686 .ndo_tx_timeout = tx_timeout, 4687 .ndo_do_ioctl = rtl8192_ioctl, 4688 .ndo_set_rx_mode = r8192_set_multicast, 4689 .ndo_set_mac_address = r8192_set_mac_adr, 4690 .ndo_validate_addr = eth_validate_addr, 4691 .ndo_start_xmit = ieee80211_xmit, 4692 }; 4693 4694 /**************************************************************************** 4695 * ---------------------------- USB_STUFF--------------------------- 4696 *****************************************************************************/ 4697 4698 static int rtl8192_usb_probe(struct usb_interface *intf, 4699 const struct usb_device_id *id) 4700 { 4701 struct net_device *dev = NULL; 4702 struct r8192_priv *priv = NULL; 4703 struct usb_device *udev = interface_to_usbdev(intf); 4704 int ret; 4705 4706 RT_TRACE(COMP_INIT, "Oops: i'm coming\n"); 4707 4708 dev = alloc_ieee80211(sizeof(struct r8192_priv)); 4709 if (!dev) 4710 return -ENOMEM; 4711 4712 usb_set_intfdata(intf, dev); 4713 SET_NETDEV_DEV(dev, &intf->dev); 4714 priv = ieee80211_priv(dev); 4715 priv->ieee80211 = netdev_priv(dev); 4716 priv->udev = udev; 4717 4718 dev->netdev_ops = &rtl8192_netdev_ops; 4719 4720 dev->wireless_handlers = &r8192_wx_handlers_def; 4721 4722 dev->type = ARPHRD_ETHER; 4723 4724 dev->watchdog_timeo = HZ * 3; 4725 4726 if (dev_alloc_name(dev, ifname) < 0) { 4727 RT_TRACE(COMP_INIT, 4728 "Oops: devname already taken! Trying wlan%%d...\n"); 4729 ifname = "wlan%d"; 4730 dev_alloc_name(dev, ifname); 4731 } 4732 4733 RT_TRACE(COMP_INIT, "Driver probe completed1\n"); 4734 if (rtl8192_init(dev) != 0) { 4735 RT_TRACE(COMP_ERR, "Initialization failed"); 4736 ret = -ENODEV; 4737 goto fail; 4738 } 4739 netif_carrier_off(dev); 4740 netif_stop_queue(dev); 4741 4742 ret = register_netdev(dev); 4743 if (ret) 4744 goto fail2; 4745 4746 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name); 4747 rtl8192_proc_init_one(dev); 4748 4749 RT_TRACE(COMP_INIT, "Driver probe completed\n"); 4750 return 0; 4751 4752 fail2: 4753 rtl8192_down(dev); 4754 fail: 4755 kfree(priv->pFirmware); 4756 priv->pFirmware = NULL; 4757 rtl8192_usb_deleteendpoints(dev); 4758 msleep(10); 4759 free_ieee80211(dev); 4760 4761 RT_TRACE(COMP_ERR, "wlan driver load failed\n"); 4762 return ret; 4763 } 4764 4765 /* detach all the work and timer structure declared or inititialize 4766 * in r8192U_init function. 4767 */ 4768 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv) 4769 { 4770 cancel_work_sync(&priv->reset_wq); 4771 cancel_delayed_work(&priv->watch_dog_wq); 4772 cancel_delayed_work(&priv->update_beacon_wq); 4773 cancel_work_sync(&priv->qos_activate); 4774 } 4775 4776 static void rtl8192_usb_disconnect(struct usb_interface *intf) 4777 { 4778 struct net_device *dev = usb_get_intfdata(intf); 4779 struct r8192_priv *priv = ieee80211_priv(dev); 4780 4781 unregister_netdev(dev); 4782 4783 RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n"); 4784 rtl8192_proc_remove_one(dev); 4785 4786 rtl8192_down(dev); 4787 kfree(priv->pFirmware); 4788 priv->pFirmware = NULL; 4789 rtl8192_usb_deleteendpoints(dev); 4790 usleep_range(10000, 11000); 4791 free_ieee80211(dev); 4792 4793 RT_TRACE(COMP_DOWN, "wlan driver removed\n"); 4794 } 4795 4796 static int __init rtl8192_usb_module_init(void) 4797 { 4798 int ret; 4799 4800 #ifdef CONFIG_IEEE80211_DEBUG 4801 ret = ieee80211_debug_init(); 4802 if (ret) { 4803 pr_err("ieee80211_debug_init() failed %d\n", ret); 4804 return ret; 4805 } 4806 #endif 4807 ret = ieee80211_crypto_init(); 4808 if (ret) { 4809 pr_err("ieee80211_crypto_init() failed %d\n", ret); 4810 return ret; 4811 } 4812 4813 ret = ieee80211_crypto_tkip_init(); 4814 if (ret) { 4815 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret); 4816 return ret; 4817 } 4818 4819 ret = ieee80211_crypto_ccmp_init(); 4820 if (ret) { 4821 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret); 4822 return ret; 4823 } 4824 4825 ret = ieee80211_crypto_wep_init(); 4826 if (ret) { 4827 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret); 4828 return ret; 4829 } 4830 4831 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n"); 4832 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n"); 4833 RT_TRACE(COMP_INIT, "Initializing module"); 4834 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT); 4835 rtl8192_proc_module_init(); 4836 return usb_register(&rtl8192_usb_driver); 4837 } 4838 4839 static void __exit rtl8192_usb_module_exit(void) 4840 { 4841 usb_deregister(&rtl8192_usb_driver); 4842 4843 RT_TRACE(COMP_DOWN, "Exiting"); 4844 } 4845 4846 void EnableHWSecurityConfig8192(struct net_device *dev) 4847 { 4848 u8 SECR_value = 0x0; 4849 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4850 struct ieee80211_device *ieee = priv->ieee80211; 4851 4852 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable; 4853 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) { 4854 SECR_value |= SCR_RxUseDK; 4855 SECR_value |= SCR_TxUseDK; 4856 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) { 4857 SECR_value |= SCR_RxUseDK; 4858 SECR_value |= SCR_TxUseDK; 4859 } 4860 /* add HWSec active enable here. 4861 * default using hwsec. when peer AP is in N mode only and 4862 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates 4863 * it), use software security. when peer AP is in b,g,n mode mixed and 4864 * pairwise_key_type is none_aes, use g mode hw security. 4865 */ 4866 4867 ieee->hwsec_active = 1; 4868 4869 /* add hwsec_support flag to totol control hw_sec on/off */ 4870 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) { 4871 ieee->hwsec_active = 0; 4872 SECR_value &= ~SCR_RxDecEnable; 4873 } 4874 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n", 4875 __func__, ieee->hwsec_active, ieee->pairwise_key_type, 4876 SECR_value); 4877 write_nic_byte(dev, SECR, SECR_value); 4878 } 4879 4880 void setKey(struct net_device *dev, u8 entryno, u8 keyindex, u16 keytype, 4881 u8 *macaddr, u8 defaultkey, u32 *keycontent) 4882 { 4883 u32 target_command = 0; 4884 u32 target_content = 0; 4885 u16 us_config = 0; 4886 u8 i; 4887 4888 if (entryno >= TOTAL_CAM_ENTRY) 4889 RT_TRACE(COMP_ERR, "cam entry exceeds in %s\n", __func__); 4890 4891 RT_TRACE(COMP_SEC, 4892 "====>to %s, dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n", 4893 __func__, dev, entryno, keyindex, keytype, macaddr); 4894 4895 if (defaultkey) 4896 us_config |= BIT(15) | (keytype << 2); 4897 else 4898 us_config |= BIT(15) | (keytype << 2) | keyindex; 4899 4900 for (i = 0; i < CAM_CONTENT_COUNT; i++) { 4901 target_command = i + CAM_CONTENT_COUNT * entryno; 4902 target_command |= BIT(31) | BIT(16); 4903 4904 if (i == 0) { /* MAC|Config */ 4905 target_content = (u32)(*(macaddr + 0)) << 16 | 4906 (u32)(*(macaddr + 1)) << 24 | 4907 (u32)us_config; 4908 4909 write_nic_dword(dev, WCAMI, target_content); 4910 write_nic_dword(dev, RWCAM, target_command); 4911 } else if (i == 1) { /* MAC */ 4912 target_content = (u32)(*(macaddr + 2)) | 4913 (u32)(*(macaddr + 3)) << 8 | 4914 (u32)(*(macaddr + 4)) << 16 | 4915 (u32)(*(macaddr + 5)) << 24; 4916 write_nic_dword(dev, WCAMI, target_content); 4917 write_nic_dword(dev, RWCAM, target_command); 4918 } else { 4919 /* Key Material */ 4920 if (keycontent) { 4921 write_nic_dword(dev, WCAMI, 4922 *(keycontent + i - 2)); 4923 write_nic_dword(dev, RWCAM, target_command); 4924 } 4925 } 4926 } 4927 } 4928 4929 /*************************************************************************** 4930 * ------------------- module init / exit stubs ---------------- 4931 ****************************************************************************/ 4932 module_init(rtl8192_usb_module_init); 4933 module_exit(rtl8192_usb_module_exit); 4934