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 if (!priv->rx_urb[16]) 1612 return -ENOMEM; 1613 priv->oldaddr = kmalloc(16, GFP_KERNEL); 1614 if (!priv->oldaddr) 1615 return -ENOMEM; 1616 oldaddr = priv->oldaddr; 1617 align = ((long)oldaddr) & 3; 1618 if (align) { 1619 newaddr = oldaddr + 4 - align; 1620 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align; 1621 } else { 1622 newaddr = oldaddr; 1623 priv->rx_urb[16]->transfer_buffer_length = 16; 1624 } 1625 priv->rx_urb[16]->transfer_buffer = newaddr; 1626 } 1627 #endif 1628 1629 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB); 1630 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *), 1631 GFP_KERNEL); 1632 if (!priv->pp_rxskb) { 1633 kfree(priv->rx_urb); 1634 1635 priv->pp_rxskb = NULL; 1636 priv->rx_urb = NULL; 1637 1638 DMESGE("Endpoint Alloc Failure"); 1639 return -ENOMEM; 1640 } 1641 1642 netdev_dbg(dev, "End of initendpoints\n"); 1643 return 0; 1644 } 1645 1646 #ifdef THOMAS_BEACON 1647 static void rtl8192_usb_deleteendpoints(struct net_device *dev) 1648 { 1649 int i; 1650 struct r8192_priv *priv = ieee80211_priv(dev); 1651 1652 if (priv->rx_urb) { 1653 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1654 usb_kill_urb(priv->rx_urb[i]); 1655 usb_free_urb(priv->rx_urb[i]); 1656 } 1657 kfree(priv->rx_urb); 1658 priv->rx_urb = NULL; 1659 } 1660 kfree(priv->oldaddr); 1661 priv->oldaddr = NULL; 1662 1663 kfree(priv->pp_rxskb); 1664 priv->pp_rxskb = NULL; 1665 } 1666 #else 1667 void rtl8192_usb_deleteendpoints(struct net_device *dev) 1668 { 1669 int i; 1670 struct r8192_priv *priv = ieee80211_priv(dev); 1671 1672 #ifndef JACKSON_NEW_RX 1673 1674 if (priv->rx_urb) { 1675 for (i = 0; i < (MAX_RX_URB + 1); i++) { 1676 usb_kill_urb(priv->rx_urb[i]); 1677 kfree(priv->rx_urb[i]->transfer_buffer); 1678 usb_free_urb(priv->rx_urb[i]); 1679 } 1680 kfree(priv->rx_urb); 1681 priv->rx_urb = NULL; 1682 } 1683 #else 1684 kfree(priv->rx_urb); 1685 priv->rx_urb = NULL; 1686 kfree(priv->oldaddr); 1687 priv->oldaddr = NULL; 1688 1689 kfree(priv->pp_rxskb); 1690 priv->pp_rxskb = 0; 1691 1692 #endif 1693 } 1694 #endif 1695 1696 static void rtl8192_update_ratr_table(struct net_device *dev); 1697 static void rtl8192_link_change(struct net_device *dev) 1698 { 1699 struct r8192_priv *priv = ieee80211_priv(dev); 1700 struct ieee80211_device *ieee = priv->ieee80211; 1701 1702 if (ieee->state == IEEE80211_LINKED) { 1703 rtl8192_net_update(dev); 1704 rtl8192_update_ratr_table(dev); 1705 /* Add this as in pure N mode, wep encryption will use software 1706 * way, but there is no chance to set this as wep will not set 1707 * group key in wext. 1708 */ 1709 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 || 1710 ieee->pairwise_key_type == KEY_TYPE_WEP104) 1711 EnableHWSecurityConfig8192(dev); 1712 } 1713 /*update timing params*/ 1714 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) { 1715 u32 reg = 0; 1716 1717 read_nic_dword(dev, RCR, ®); 1718 if (priv->ieee80211->state == IEEE80211_LINKED) 1719 priv->ReceiveConfig = reg |= RCR_CBSSID; 1720 else 1721 priv->ReceiveConfig = reg &= ~RCR_CBSSID; 1722 write_nic_dword(dev, RCR, reg); 1723 } 1724 } 1725 1726 static const struct ieee80211_qos_parameters def_qos_parameters = { 1727 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)}, 1728 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)}, 1729 {2, 2, 2, 2},/* aifs */ 1730 {0, 0, 0, 0},/* flags */ 1731 {0, 0, 0, 0} /* tx_op_limit */ 1732 }; 1733 1734 static void rtl8192_update_beacon(struct work_struct *work) 1735 { 1736 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1737 update_beacon_wq.work); 1738 struct net_device *dev = priv->ieee80211->dev; 1739 struct ieee80211_device *ieee = priv->ieee80211; 1740 struct ieee80211_network *net = &ieee->current_network; 1741 1742 if (ieee->pHTInfo->bCurrentHTSupport) 1743 HTUpdateSelfAndPeerSetting(ieee, net); 1744 ieee->pHTInfo->bCurrentRT2RTLongSlotTime = 1745 net->bssht.bdRT2RTLongSlotTime; 1746 rtl8192_update_cap(dev, net->capability); 1747 } 1748 1749 /* 1750 * background support to run QoS activate functionality 1751 */ 1752 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK, 1753 EDCAPARA_VI, EDCAPARA_VO}; 1754 static void rtl8192_qos_activate(struct work_struct *work) 1755 { 1756 struct r8192_priv *priv = container_of(work, struct r8192_priv, 1757 qos_activate); 1758 struct net_device *dev = priv->ieee80211->dev; 1759 struct ieee80211_qos_parameters *qos_parameters = 1760 &priv->ieee80211->current_network.qos_data.parameters; 1761 u8 mode = priv->ieee80211->current_network.mode; 1762 u32 u1bAIFS; 1763 u32 u4bAcParam; 1764 u32 op_limit; 1765 u32 cw_max; 1766 u32 cw_min; 1767 int i; 1768 1769 mutex_lock(&priv->mutex); 1770 if (priv->ieee80211->state != IEEE80211_LINKED) 1771 goto success; 1772 RT_TRACE(COMP_QOS, 1773 "qos active process with associate response received\n"); 1774 /* It better set slot time at first 1775 * 1776 * For we just support b/g mode at present, let the slot time at 1777 * 9/20 selection 1778 * 1779 * update the ac parameter to related registers 1780 */ 1781 for (i = 0; i < QOS_QUEUE_NUM; i++) { 1782 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */ 1783 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime; 1784 u1bAIFS <<= AC_PARAM_AIFS_OFFSET; 1785 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]); 1786 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET; 1787 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]); 1788 cw_max <<= AC_PARAM_ECW_MAX_OFFSET; 1789 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]); 1790 cw_min <<= AC_PARAM_ECW_MIN_OFFSET; 1791 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS; 1792 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam); 1793 } 1794 1795 success: 1796 mutex_unlock(&priv->mutex); 1797 } 1798 1799 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv, 1800 int active_network, 1801 struct ieee80211_network *network) 1802 { 1803 int ret = 0; 1804 u32 size = sizeof(struct ieee80211_qos_parameters); 1805 1806 if (priv->ieee80211->state != IEEE80211_LINKED) 1807 return ret; 1808 1809 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1810 return ret; 1811 1812 if (network->flags & NETWORK_HAS_QOS_MASK) { 1813 if (active_network && 1814 (network->flags & NETWORK_HAS_QOS_PARAMETERS)) 1815 network->qos_data.active = network->qos_data.supported; 1816 1817 if ((network->qos_data.active == 1) && (active_network == 1) && 1818 (network->flags & NETWORK_HAS_QOS_PARAMETERS) && 1819 (network->qos_data.old_param_count != 1820 network->qos_data.param_count)) { 1821 network->qos_data.old_param_count = 1822 network->qos_data.param_count; 1823 schedule_work(&priv->qos_activate); 1824 RT_TRACE(COMP_QOS, 1825 "QoS parameters change call qos_activate\n"); 1826 } 1827 } else { 1828 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1829 &def_qos_parameters, size); 1830 1831 if ((network->qos_data.active == 1) && (active_network == 1)) { 1832 schedule_work(&priv->qos_activate); 1833 RT_TRACE(COMP_QOS, 1834 "QoS was disabled call qos_activate\n"); 1835 } 1836 network->qos_data.active = 0; 1837 network->qos_data.supported = 0; 1838 } 1839 1840 return 0; 1841 } 1842 1843 /* handle and manage frame from beacon and probe response */ 1844 static int rtl8192_handle_beacon(struct net_device *dev, 1845 struct ieee80211_beacon *beacon, 1846 struct ieee80211_network *network) 1847 { 1848 struct r8192_priv *priv = ieee80211_priv(dev); 1849 1850 rtl8192_qos_handle_probe_response(priv, 1, network); 1851 schedule_delayed_work(&priv->update_beacon_wq, 0); 1852 return 0; 1853 } 1854 1855 /* 1856 * handling the beaconing responses. if we get different QoS setting 1857 * off the network from the associated setting, adjust the QoS 1858 * setting 1859 */ 1860 static int rtl8192_qos_association_resp(struct r8192_priv *priv, 1861 struct ieee80211_network *network) 1862 { 1863 unsigned long flags; 1864 u32 size = sizeof(struct ieee80211_qos_parameters); 1865 int set_qos_param = 0; 1866 1867 if (!priv || !network) 1868 return 0; 1869 1870 if (priv->ieee80211->state != IEEE80211_LINKED) 1871 return 0; 1872 1873 if (priv->ieee80211->iw_mode != IW_MODE_INFRA) 1874 return 0; 1875 1876 spin_lock_irqsave(&priv->ieee80211->lock, flags); 1877 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { 1878 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1879 &network->qos_data.parameters, 1880 sizeof(struct ieee80211_qos_parameters)); 1881 priv->ieee80211->current_network.qos_data.active = 1; 1882 set_qos_param = 1; 1883 /* update qos parameter for current network */ 1884 priv->ieee80211->current_network.qos_data.old_param_count = 1885 priv->ieee80211->current_network.qos_data.param_count; 1886 priv->ieee80211->current_network.qos_data.param_count = 1887 network->qos_data.param_count; 1888 } else { 1889 memcpy(&priv->ieee80211->current_network.qos_data.parameters, 1890 &def_qos_parameters, size); 1891 priv->ieee80211->current_network.qos_data.active = 0; 1892 priv->ieee80211->current_network.qos_data.supported = 0; 1893 set_qos_param = 1; 1894 } 1895 1896 spin_unlock_irqrestore(&priv->ieee80211->lock, flags); 1897 1898 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__, 1899 network->flags, 1900 priv->ieee80211->current_network.qos_data.active); 1901 if (set_qos_param == 1) 1902 schedule_work(&priv->qos_activate); 1903 1904 return 0; 1905 } 1906 1907 static int rtl8192_handle_assoc_response(struct net_device *dev, 1908 struct ieee80211_assoc_response_frame *resp, 1909 struct ieee80211_network *network) 1910 { 1911 struct r8192_priv *priv = ieee80211_priv(dev); 1912 1913 rtl8192_qos_association_resp(priv, network); 1914 return 0; 1915 } 1916 1917 static void rtl8192_update_ratr_table(struct net_device *dev) 1918 { 1919 struct r8192_priv *priv = ieee80211_priv(dev); 1920 struct ieee80211_device *ieee = priv->ieee80211; 1921 u8 *pMcsRate = ieee->dot11HTOperationalRateSet; 1922 u32 ratr_value = 0; 1923 u8 rate_index = 0; 1924 1925 rtl8192_config_rate(dev, (u16 *)(&ratr_value)); 1926 ratr_value |= (*(u16 *)(pMcsRate)) << 12; 1927 switch (ieee->mode) { 1928 case IEEE_A: 1929 ratr_value &= 0x00000FF0; 1930 break; 1931 case IEEE_B: 1932 ratr_value &= 0x0000000F; 1933 break; 1934 case IEEE_G: 1935 ratr_value &= 0x00000FF7; 1936 break; 1937 case IEEE_N_24G: 1938 case IEEE_N_5G: 1939 if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) { 1940 ratr_value &= 0x0007F007; 1941 } else { 1942 if (priv->rf_type == RF_1T2R) 1943 ratr_value &= 0x000FF007; 1944 else 1945 ratr_value &= 0x0F81F007; 1946 } 1947 break; 1948 default: 1949 break; 1950 } 1951 ratr_value &= 0x0FFFFFFF; 1952 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz) 1953 ratr_value |= 0x80000000; 1954 else if (!ieee->pHTInfo->bCurTxBW40MHz && 1955 ieee->pHTInfo->bCurShortGI20MHz) 1956 ratr_value |= 0x80000000; 1957 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value); 1958 write_nic_byte(dev, UFWP, 1); 1959 } 1960 1961 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04}; 1962 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04}; 1963 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev) 1964 { 1965 struct r8192_priv *priv = ieee80211_priv(dev); 1966 struct ieee80211_device *ieee = priv->ieee80211; 1967 struct ieee80211_network *network = &ieee->current_network; 1968 int wpa_ie_len = ieee->wpa_ie_len; 1969 struct ieee80211_crypt_data *crypt; 1970 int encrypt; 1971 1972 crypt = ieee->crypt[ieee->tx_keyidx]; 1973 /* we use connecting AP's capability instead of only security config 1974 * on our driver to distinguish whether it should use N mode or G mode 1975 */ 1976 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) || 1977 (ieee->host_encrypt && crypt && crypt->ops && 1978 (strcmp(crypt->ops->name, "WEP") == 0)); 1979 1980 /* simply judge */ 1981 if (encrypt && (wpa_ie_len == 0)) { 1982 /* wep encryption, no N mode setting */ 1983 return false; 1984 } else if ((wpa_ie_len != 0)) { 1985 /* parse pairwise key type */ 1986 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)))) 1987 return true; 1988 else 1989 return false; 1990 } else { 1991 return true; 1992 } 1993 1994 return true; 1995 } 1996 1997 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev) 1998 { 1999 struct r8192_priv *priv = ieee80211_priv(dev); 2000 2001 return priv->ieee80211->bHalfWirelessN24GMode; 2002 } 2003 2004 static void rtl8192_refresh_supportrate(struct r8192_priv *priv) 2005 { 2006 struct ieee80211_device *ieee = priv->ieee80211; 2007 /* We do not consider set support rate for ABG mode, only 2008 * HT MCS rate is set here. 2009 */ 2010 if (ieee->mode == WIRELESS_MODE_N_24G || 2011 ieee->mode == WIRELESS_MODE_N_5G) 2012 memcpy(ieee->Regdot11HTOperationalRateSet, 2013 ieee->RegHTSuppRateSet, 16); 2014 else 2015 memset(ieee->Regdot11HTOperationalRateSet, 0, 16); 2016 } 2017 2018 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev) 2019 { 2020 struct r8192_priv *priv = ieee80211_priv(dev); 2021 u8 ret = 0; 2022 2023 switch (priv->rf_chip) { 2024 case RF_8225: 2025 case RF_8256: 2026 case RF_PSEUDO_11N: 2027 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B; 2028 break; 2029 case RF_8258: 2030 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G; 2031 break; 2032 default: 2033 ret = WIRELESS_MODE_B; 2034 break; 2035 } 2036 return ret; 2037 } 2038 2039 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) 2040 { 2041 struct r8192_priv *priv = ieee80211_priv(dev); 2042 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev); 2043 2044 if (wireless_mode == WIRELESS_MODE_AUTO || 2045 (wireless_mode & bSupportMode) == 0) { 2046 if (bSupportMode & WIRELESS_MODE_N_24G) { 2047 wireless_mode = WIRELESS_MODE_N_24G; 2048 } else if (bSupportMode & WIRELESS_MODE_N_5G) { 2049 wireless_mode = WIRELESS_MODE_N_5G; 2050 } else if ((bSupportMode & WIRELESS_MODE_A)) { 2051 wireless_mode = WIRELESS_MODE_A; 2052 } else if ((bSupportMode & WIRELESS_MODE_G)) { 2053 wireless_mode = WIRELESS_MODE_G; 2054 } else if ((bSupportMode & WIRELESS_MODE_B)) { 2055 wireless_mode = WIRELESS_MODE_B; 2056 } else { 2057 RT_TRACE(COMP_ERR, 2058 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n", 2059 __func__, bSupportMode); 2060 wireless_mode = WIRELESS_MODE_B; 2061 } 2062 } 2063 priv->ieee80211->mode = wireless_mode; 2064 2065 if (wireless_mode == WIRELESS_MODE_N_24G || 2066 wireless_mode == WIRELESS_MODE_N_5G) 2067 priv->ieee80211->pHTInfo->bEnableHT = 1; 2068 else 2069 priv->ieee80211->pHTInfo->bEnableHT = 0; 2070 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode); 2071 rtl8192_refresh_supportrate(priv); 2072 } 2073 2074 /* init priv variables here. only non_zero value should be initialized here. */ 2075 static int rtl8192_init_priv_variable(struct net_device *dev) 2076 { 2077 struct r8192_priv *priv = ieee80211_priv(dev); 2078 u8 i; 2079 2080 priv->card_8192 = NIC_8192U; 2081 priv->chan = 1; /* set to channel 1 */ 2082 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */ 2083 priv->ieee80211->iw_mode = IW_MODE_INFRA; 2084 priv->ieee80211->ieee_up = 0; 2085 priv->retry_rts = DEFAULT_RETRY_RTS; 2086 priv->retry_data = DEFAULT_RETRY_DATA; 2087 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD; 2088 priv->ieee80211->rate = 110; /* 11 mbps */ 2089 priv->ieee80211->short_slot = 1; 2090 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 2091 priv->CckPwEnl = 6; 2092 /* for silent reset */ 2093 priv->IrpPendingCount = 1; 2094 priv->ResetProgress = RESET_TYPE_NORESET; 2095 priv->bForcedSilentReset = false; 2096 priv->bDisableNormalResetCheck = false; 2097 priv->force_reset = false; 2098 2099 /* we don't use FW read/write RF until stable firmware is available. */ 2100 priv->ieee80211->FwRWRF = 0; 2101 priv->ieee80211->current_network.beacon_interval = 2102 DEFAULT_BEACONINTERVAL; 2103 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN | 2104 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ | 2105 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE | 2106 IEEE_SOFTMAC_BEACONS; 2107 2108 priv->ieee80211->active_scan = 1; 2109 priv->ieee80211->modulation = 2110 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION; 2111 priv->ieee80211->host_encrypt = 1; 2112 priv->ieee80211->host_decrypt = 1; 2113 priv->ieee80211->start_send_beacons = NULL; 2114 priv->ieee80211->stop_send_beacons = NULL; 2115 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit; 2116 priv->ieee80211->set_chan = rtl8192_set_chan; 2117 priv->ieee80211->link_change = rtl8192_link_change; 2118 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit; 2119 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop; 2120 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume; 2121 priv->ieee80211->init_wmmparam_flag = 0; 2122 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD; 2123 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc; 2124 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES; 2125 priv->ieee80211->qos_support = 1; 2126 2127 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode; 2128 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response; 2129 priv->ieee80211->handle_beacon = rtl8192_handle_beacon; 2130 2131 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192; 2132 priv->ieee80211->GetHalfNmodeSupportByAPsHandler = 2133 GetHalfNmodeSupportByAPs819xUsb; 2134 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode; 2135 2136 priv->ieee80211->InitialGainHandler = InitialGain819xUsb; 2137 priv->card_type = USB; 2138 priv->ShortRetryLimit = 0x30; 2139 priv->LongRetryLimit = 0x30; 2140 priv->EarlyRxThreshold = 7; 2141 priv->enable_gpio0 = 0; 2142 priv->TransmitConfig = 2143 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */ 2144 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) | 2145 /* Short retry limit */ 2146 (priv->ShortRetryLimit << TCR_SRL_OFFSET) | 2147 /* Long retry limit */ 2148 (priv->LongRetryLimit << TCR_LRL_OFFSET) | 2149 /* FALSE: HW provides PLCP length and LENGEXT 2150 * TRUE: SW provides them 2151 */ 2152 (false ? TCR_SAT : 0); 2153 priv->ReceiveConfig = 2154 /* accept management/data */ 2155 RCR_AMF | RCR_ADF | 2156 /* accept control frame for SW AP needs PS-poll */ 2157 RCR_ACF | 2158 /* accept BC/MC/UC */ 2159 RCR_AB | RCR_AM | RCR_APM | 2160 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */ 2161 ((u32)7 << RCR_MXDMA_OFFSET) | 2162 /* Rx FIFO Threshold, 7: No Rx threshold. */ 2163 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) | 2164 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0); 2165 2166 priv->AcmControl = 0; 2167 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL); 2168 if (!priv->pFirmware) 2169 return -ENOMEM; 2170 2171 /* rx related queue */ 2172 skb_queue_head_init(&priv->rx_queue); 2173 skb_queue_head_init(&priv->skb_queue); 2174 2175 /* Tx related queue */ 2176 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2177 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]); 2178 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2179 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]); 2180 for (i = 0; i < MAX_QUEUE_SIZE; i++) 2181 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]); 2182 priv->rf_set_chan = rtl8192_phy_SwChnl; 2183 2184 return 0; 2185 } 2186 2187 /* init lock here */ 2188 static void rtl8192_init_priv_lock(struct r8192_priv *priv) 2189 { 2190 spin_lock_init(&priv->tx_lock); 2191 spin_lock_init(&priv->irq_lock); 2192 mutex_init(&priv->wx_mutex); 2193 mutex_init(&priv->mutex); 2194 } 2195 2196 static void rtl819x_watchdog_wqcallback(struct work_struct *work); 2197 2198 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t); 2199 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */ 2200 #define DRV_NAME "wlan0" 2201 static void rtl8192_init_priv_task(struct net_device *dev) 2202 { 2203 struct r8192_priv *priv = ieee80211_priv(dev); 2204 2205 INIT_WORK(&priv->reset_wq, rtl8192_restart); 2206 2207 INIT_DELAYED_WORK(&priv->watch_dog_wq, 2208 rtl819x_watchdog_wqcallback); 2209 INIT_DELAYED_WORK(&priv->txpower_tracking_wq, 2210 dm_txpower_trackingcallback); 2211 INIT_DELAYED_WORK(&priv->rfpath_check_wq, 2212 dm_rf_pathcheck_workitemcallback); 2213 INIT_DELAYED_WORK(&priv->update_beacon_wq, 2214 rtl8192_update_beacon); 2215 INIT_DELAYED_WORK(&priv->initialgain_operate_wq, 2216 InitialGainOperateWorkItemCallBack); 2217 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate); 2218 2219 tasklet_setup(&priv->irq_rx_tasklet, rtl8192_irq_rx_tasklet); 2220 } 2221 2222 static void rtl8192_get_eeprom_size(struct net_device *dev) 2223 { 2224 u16 curCR = 0; 2225 struct r8192_priv *priv = ieee80211_priv(dev); 2226 2227 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); 2228 read_nic_word_E(dev, EPROM_CMD, &curCR); 2229 RT_TRACE(COMP_EPROM, 2230 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR); 2231 /* whether need I consider BIT(5?) */ 2232 priv->epromtype = 2233 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46; 2234 RT_TRACE(COMP_EPROM, 2235 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype); 2236 } 2237 2238 /* used to swap endian. as ntohl & htonl are not necessary 2239 * to swap endian, so use this instead. 2240 */ 2241 static inline u16 endian_swap(u16 *data) 2242 { 2243 u16 tmp = *data; 2244 *data = (tmp >> 8) | (tmp << 8); 2245 return *data; 2246 } 2247 2248 static int rtl8192_read_eeprom_info(struct net_device *dev) 2249 { 2250 u16 wEPROM_ID = 0; 2251 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02}; 2252 u8 bLoad_From_EEPOM = false; 2253 struct r8192_priv *priv = ieee80211_priv(dev); 2254 u16 tmpValue = 0; 2255 int i; 2256 int ret; 2257 2258 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); 2259 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */ 2260 if (ret < 0) 2261 return ret; 2262 wEPROM_ID = (u16)ret; 2263 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID); 2264 2265 if (wEPROM_ID != RTL8190_EEPROM_ID) 2266 RT_TRACE(COMP_ERR, 2267 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n", 2268 wEPROM_ID, RTL8190_EEPROM_ID); 2269 else 2270 bLoad_From_EEPOM = true; 2271 2272 if (bLoad_From_EEPOM) { 2273 tmpValue = eprom_read(dev, EEPROM_VID >> 1); 2274 ret = eprom_read(dev, EEPROM_VID >> 1); 2275 if (ret < 0) 2276 return ret; 2277 tmpValue = (u16)ret; 2278 priv->eeprom_vid = endian_swap(&tmpValue); 2279 ret = eprom_read(dev, EEPROM_PID >> 1); 2280 if (ret < 0) 2281 return ret; 2282 priv->eeprom_pid = (u16)ret; 2283 ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1); 2284 if (ret < 0) 2285 return ret; 2286 tmpValue = (u16)ret; 2287 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8; 2288 priv->btxpowerdata_readfromEEPORM = true; 2289 ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8; 2290 if (ret < 0) 2291 return ret; 2292 priv->eeprom_CustomerID = (u16)ret; 2293 } else { 2294 priv->eeprom_vid = 0; 2295 priv->eeprom_pid = 0; 2296 priv->card_8192_version = VERSION_819XU_B; 2297 priv->eeprom_ChannelPlan = 0; 2298 priv->eeprom_CustomerID = 0; 2299 } 2300 RT_TRACE(COMP_EPROM, 2301 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n", 2302 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID, 2303 priv->eeprom_ChannelPlan); 2304 /* set channelplan from eeprom */ 2305 priv->ChannelPlan = priv->eeprom_ChannelPlan; 2306 if (bLoad_From_EEPOM) { 2307 int i; 2308 2309 for (i = 0; i < 6; i += 2) { 2310 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1)); 2311 if (ret < 0) 2312 return ret; 2313 *(u16 *)(&dev->dev_addr[i]) = (u16)ret; 2314 } 2315 } else { 2316 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6); 2317 /* should I set IDR0 here? */ 2318 } 2319 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr); 2320 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */ 2321 priv->rf_chip = RF_8256; 2322 2323 if (priv->card_8192_version == VERSION_819XU_A) { 2324 /* read Tx power gain offset of legacy OFDM to HT rate */ 2325 if (bLoad_From_EEPOM) { 2326 ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1)); 2327 if (ret < 0) 2328 return ret; 2329 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8; 2330 } else 2331 priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER; 2332 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff); 2333 /* read ThermalMeter from EEPROM */ 2334 if (bLoad_From_EEPOM) { 2335 ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1)); 2336 if (ret < 0) 2337 return ret; 2338 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff); 2339 } else 2340 priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER; 2341 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter); 2342 /* for tx power track */ 2343 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100; 2344 /* read antenna tx power offset of B/C/D to A from EEPROM */ 2345 if (bLoad_From_EEPOM) { 2346 ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1)); 2347 if (ret < 0) 2348 return ret; 2349 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8; 2350 } else 2351 priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF; 2352 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff); 2353 /* Read CrystalCap from EEPROM */ 2354 if (bLoad_From_EEPOM) { 2355 ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1)); 2356 if (ret < 0) 2357 return ret; 2358 priv->EEPROMCrystalCap = (u16)ret & 0x0f; 2359 } else 2360 priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP; 2361 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap); 2362 /* get per-channel Tx power level */ 2363 if (bLoad_From_EEPOM) { 2364 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1)); 2365 if (ret < 0) 2366 return ret; 2367 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8; 2368 } else 2369 priv->EEPROM_Def_Ver = 1; 2370 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver); 2371 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */ 2372 int i; 2373 2374 if (bLoad_From_EEPOM) { 2375 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1)); 2376 if (ret < 0) 2377 return ret; 2378 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff00) >> 8; 2379 } else 2380 priv->EEPROMTxPowerLevelCCK = 0x10; 2381 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK); 2382 for (i = 0; i < 3; i++) { 2383 if (bLoad_From_EEPOM) { 2384 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1); 2385 if (ret < 0) 2386 return ret; 2387 if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0) 2388 tmpValue = (u16)ret & 0x00ff; 2389 else 2390 tmpValue = ((u16)ret & 0xff00) >> 8; 2391 } else { 2392 tmpValue = 0x10; 2393 } 2394 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue; 2395 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK); 2396 } 2397 } else if (priv->EEPROM_Def_Ver == 1) { 2398 if (bLoad_From_EEPOM) { 2399 ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1); 2400 if (ret < 0) 2401 return ret; 2402 tmpValue = ((u16)ret & 0xff00) >> 8; 2403 } else { 2404 tmpValue = 0x10; 2405 } 2406 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue; 2407 2408 if (bLoad_From_EEPOM) { 2409 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1); 2410 if (ret < 0) 2411 return ret; 2412 tmpValue = (u16)ret; 2413 } else 2414 tmpValue = 0x1010; 2415 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue; 2416 if (bLoad_From_EEPOM) 2417 tmpValue = eprom_read(dev, 2418 EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1); 2419 else 2420 tmpValue = 0x1010; 2421 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue; 2422 if (bLoad_From_EEPOM) 2423 tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1); 2424 else 2425 tmpValue = 0x10; 2426 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue; 2427 } /* endif EEPROM_Def_Ver == 1 */ 2428 2429 /* update HAL variables */ 2430 for (i = 0; i < 14; i++) { 2431 if (i <= 3) 2432 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0]; 2433 else if (i >= 4 && i <= 9) 2434 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1]; 2435 else 2436 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2]; 2437 } 2438 2439 for (i = 0; i < 14; i++) { 2440 if (priv->EEPROM_Def_Ver == 0) { 2441 if (i <= 3) 2442 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); 2443 else if (i >= 4 && i <= 9) 2444 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK; 2445 else 2446 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); 2447 } else if (priv->EEPROM_Def_Ver == 1) { 2448 if (i <= 3) 2449 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0]; 2450 else if (i >= 4 && i <= 9) 2451 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1]; 2452 else 2453 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2]; 2454 } 2455 } 2456 priv->TxPowerDiff = priv->EEPROMPwDiff; 2457 /* Antenna B gain offset to antenna A, bit0~3 */ 2458 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf); 2459 /* Antenna C gain offset to antenna A, bit4~7 */ 2460 priv->AntennaTxPwDiff[1] = 2461 (priv->EEPROMTxPowerDiff & 0xf0) >> 4; 2462 /* CrystalCap, bit12~15 */ 2463 priv->CrystalCap = priv->EEPROMCrystalCap; 2464 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2 2465 * 92U does not enable TX power tracking. 2466 */ 2467 priv->ThermalMeter[0] = priv->EEPROMThermalMeter; 2468 } /* end if VersionID == VERSION_819XU_A */ 2469 2470 /* for dlink led */ 2471 switch (priv->eeprom_CustomerID) { 2472 case EEPROM_CID_RUNTOP: 2473 priv->CustomerID = RT_CID_819x_RUNTOP; 2474 break; 2475 2476 case EEPROM_CID_DLINK: 2477 priv->CustomerID = RT_CID_DLINK; 2478 break; 2479 2480 default: 2481 priv->CustomerID = RT_CID_DEFAULT; 2482 break; 2483 } 2484 2485 switch (priv->CustomerID) { 2486 case RT_CID_819x_RUNTOP: 2487 priv->LedStrategy = SW_LED_MODE2; 2488 break; 2489 2490 case RT_CID_DLINK: 2491 priv->LedStrategy = SW_LED_MODE4; 2492 break; 2493 2494 default: 2495 priv->LedStrategy = SW_LED_MODE0; 2496 break; 2497 } 2498 2499 if (priv->rf_type == RF_1T2R) 2500 RT_TRACE(COMP_EPROM, "\n1T2R config\n"); 2501 else 2502 RT_TRACE(COMP_EPROM, "\n2T4R config\n"); 2503 2504 /* We can only know RF type in the function. So we have to init 2505 * DIG RATR table again. 2506 */ 2507 init_rate_adaptive(dev); 2508 2509 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__); 2510 2511 return 0; 2512 } 2513 2514 static short rtl8192_get_channel_map(struct net_device *dev) 2515 { 2516 struct r8192_priv *priv = ieee80211_priv(dev); 2517 2518 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) { 2519 netdev_err(dev, 2520 "rtl8180_init: Error channel plan! Set to default.\n"); 2521 priv->ChannelPlan = 0; 2522 } 2523 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan); 2524 2525 rtl819x_set_channel_map(priv->ChannelPlan, priv); 2526 return 0; 2527 } 2528 2529 static short rtl8192_init(struct net_device *dev) 2530 { 2531 struct r8192_priv *priv = ieee80211_priv(dev); 2532 int err; 2533 2534 memset(&(priv->stats), 0, sizeof(struct Stats)); 2535 memset(priv->txqueue_to_outpipemap, 0, 9); 2536 #ifdef PIPE12 2537 { 2538 int i = 0; 2539 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5}; 2540 2541 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); 2542 } 2543 #else 2544 { 2545 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4}; 2546 2547 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); 2548 } 2549 #endif 2550 err = rtl8192_init_priv_variable(dev); 2551 if (err) 2552 return err; 2553 2554 rtl8192_init_priv_lock(priv); 2555 rtl8192_init_priv_task(dev); 2556 rtl8192_get_eeprom_size(dev); 2557 err = rtl8192_read_eeprom_info(dev); 2558 if (err) { 2559 DMESG("Reading EEPROM info failed"); 2560 return err; 2561 } 2562 rtl8192_get_channel_map(dev); 2563 init_hal_dm(dev); 2564 timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0); 2565 if (rtl8192_usb_initendpoints(dev) != 0) { 2566 DMESG("Endopoints initialization failed"); 2567 return -ENOMEM; 2568 } 2569 2570 return 0; 2571 } 2572 2573 /****************************************************************************** 2574 *function: This function actually only set RRSR, RATR and BW_OPMODE registers 2575 * not to do all the hw config as its name says 2576 * input: net_device dev 2577 * output: none 2578 * return: none 2579 * notice: This part need to modified according to the rate set we filtered 2580 * ****************************************************************************/ 2581 static void rtl8192_hwconfig(struct net_device *dev) 2582 { 2583 u32 regRATR = 0, regRRSR = 0; 2584 u8 regBwOpMode = 0, regTmp = 0; 2585 struct r8192_priv *priv = ieee80211_priv(dev); 2586 u32 ratr_value = 0; 2587 2588 /* Set RRSR, RATR, and BW_OPMODE registers */ 2589 switch (priv->ieee80211->mode) { 2590 case WIRELESS_MODE_B: 2591 regBwOpMode = BW_OPMODE_20MHZ; 2592 regRATR = RATE_ALL_CCK; 2593 regRRSR = RATE_ALL_CCK; 2594 break; 2595 case WIRELESS_MODE_A: 2596 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ; 2597 regRATR = RATE_ALL_OFDM_AG; 2598 regRRSR = RATE_ALL_OFDM_AG; 2599 break; 2600 case WIRELESS_MODE_G: 2601 regBwOpMode = BW_OPMODE_20MHZ; 2602 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2603 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2604 break; 2605 case WIRELESS_MODE_AUTO: 2606 regBwOpMode = BW_OPMODE_20MHZ; 2607 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | 2608 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; 2609 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2610 break; 2611 case WIRELESS_MODE_N_24G: 2612 /* It support CCK rate by default. CCK rate will be filtered 2613 * out only when associated AP does not support it. 2614 */ 2615 regBwOpMode = BW_OPMODE_20MHZ; 2616 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | 2617 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; 2618 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; 2619 break; 2620 case WIRELESS_MODE_N_5G: 2621 regBwOpMode = BW_OPMODE_5G; 2622 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | 2623 RATE_ALL_OFDM_2SS; 2624 regRRSR = RATE_ALL_OFDM_AG; 2625 break; 2626 } 2627 2628 write_nic_byte(dev, BW_OPMODE, regBwOpMode); 2629 ratr_value = regRATR; 2630 if (priv->rf_type == RF_1T2R) 2631 ratr_value &= ~(RATE_ALL_OFDM_2SS); 2632 write_nic_dword(dev, RATR0, ratr_value); 2633 write_nic_byte(dev, UFWP, 1); 2634 read_nic_byte(dev, 0x313, ®Tmp); 2635 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff); 2636 write_nic_dword(dev, RRSR, regRRSR); 2637 2638 /* Set Retry Limit here */ 2639 write_nic_word(dev, RETRY_LIMIT, 2640 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT | 2641 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT); 2642 /* Set Contention Window here */ 2643 2644 /* Set Tx AGC */ 2645 2646 /* Set Tx Antenna including Feedback control */ 2647 2648 /* Set Auto Rate fallback control */ 2649 } 2650 2651 /* InitializeAdapter and PhyCfg */ 2652 static bool rtl8192_adapter_start(struct net_device *dev) 2653 { 2654 struct r8192_priv *priv = ieee80211_priv(dev); 2655 u32 dwRegRead = 0; 2656 bool init_status = true; 2657 u8 SECR_value = 0x0; 2658 u8 tmp; 2659 2660 RT_TRACE(COMP_INIT, "====>%s()\n", __func__); 2661 priv->Rf_Mode = RF_OP_By_SW_3wire; 2662 /* for ASIC power on sequence */ 2663 write_nic_byte_E(dev, 0x5f, 0x80); 2664 mdelay(50); 2665 write_nic_byte_E(dev, 0x5f, 0xf0); 2666 write_nic_byte_E(dev, 0x5d, 0x00); 2667 write_nic_byte_E(dev, 0x5e, 0x80); 2668 write_nic_byte(dev, 0x17, 0x37); 2669 mdelay(10); 2670 priv->pFirmware->firmware_status = FW_STATUS_0_INIT; 2671 /* config CPUReset Register */ 2672 /* Firmware Reset or not? */ 2673 read_nic_dword(dev, CPU_GEN, &dwRegRead); 2674 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT) 2675 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */ 2676 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY) 2677 dwRegRead |= CPU_GEN_FIRMWARE_RESET; 2678 else 2679 RT_TRACE(COMP_ERR, 2680 "ERROR in %s(): undefined firmware state(%d)\n", 2681 __func__, priv->pFirmware->firmware_status); 2682 2683 write_nic_dword(dev, CPU_GEN, dwRegRead); 2684 /* config BB. */ 2685 rtl8192_BBConfig(dev); 2686 2687 /* Loopback mode or not */ 2688 priv->LoopbackMode = RTL819xU_NO_LOOPBACK; 2689 2690 read_nic_dword(dev, CPU_GEN, &dwRegRead); 2691 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK) 2692 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) | 2693 CPU_GEN_NO_LOOPBACK_SET; 2694 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK) 2695 dwRegRead |= CPU_CCK_LOOPBACK; 2696 else 2697 RT_TRACE(COMP_ERR, 2698 "Serious error in %s(): wrong loopback mode setting(%d)\n", 2699 __func__, priv->LoopbackMode); 2700 2701 write_nic_dword(dev, CPU_GEN, dwRegRead); 2702 2703 /* after reset cpu, we need wait for a seconds to write in register. */ 2704 udelay(500); 2705 2706 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */ 2707 read_nic_byte_E(dev, 0x5f, &tmp); 2708 write_nic_byte_E(dev, 0x5f, tmp | 0x20); 2709 2710 /* Set Hardware */ 2711 rtl8192_hwconfig(dev); 2712 2713 /* turn on Tx/Rx */ 2714 write_nic_byte(dev, CMDR, CR_RE | CR_TE); 2715 2716 /* set IDR0 here */ 2717 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]); 2718 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]); 2719 2720 /* set RCR */ 2721 write_nic_dword(dev, RCR, priv->ReceiveConfig); 2722 2723 /* Initialize Number of Reserved Pages in Firmware Queue */ 2724 write_nic_dword(dev, RQPN1, 2725 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT | 2726 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT | 2727 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT | 2728 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT); 2729 write_nic_dword(dev, RQPN2, 2730 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT | 2731 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT); 2732 write_nic_dword(dev, RQPN3, 2733 APPLIED_RESERVED_QUEUE_IN_FW | 2734 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT); 2735 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK)); 2736 2737 /* Set AckTimeout */ 2738 /* TODO: (it value is only for FPGA version). need to be changed!! */ 2739 write_nic_byte(dev, ACK_TIMEOUT, 0x30); 2740 2741 if (priv->ResetProgress == RESET_TYPE_NORESET) 2742 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode); 2743 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2744 CamResetAllEntry(dev); 2745 SECR_value |= SCR_TxEncEnable; 2746 SECR_value |= SCR_RxDecEnable; 2747 SECR_value |= SCR_NoSKMC; 2748 write_nic_byte(dev, SECR, SECR_value); 2749 } 2750 2751 /* Beacon related */ 2752 write_nic_word(dev, ATIMWND, 2); 2753 write_nic_word(dev, BCN_INTERVAL, 100); 2754 2755 #define DEFAULT_EDCA 0x005e4332 2756 { 2757 int i; 2758 2759 for (i = 0; i < QOS_QUEUE_NUM; i++) 2760 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA); 2761 } 2762 2763 rtl8192_phy_configmac(dev); 2764 2765 if (priv->card_8192_version == VERSION_819XU_A) { 2766 rtl8192_phy_getTxPower(dev); 2767 rtl8192_phy_setTxPower(dev, priv->chan); 2768 } 2769 2770 /* Firmware download */ 2771 init_status = init_firmware(dev); 2772 if (!init_status) { 2773 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n", 2774 __func__); 2775 return init_status; 2776 } 2777 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__); 2778 2779 /* config RF. */ 2780 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2781 rtl8192_phy_RFConfig(dev); 2782 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__); 2783 } 2784 2785 if (priv->ieee80211->FwRWRF) 2786 /* We can force firmware to do RF-R/W */ 2787 priv->Rf_Mode = RF_OP_By_FW; 2788 else 2789 priv->Rf_Mode = RF_OP_By_SW_3wire; 2790 2791 rtl8192_phy_updateInitGain(dev); 2792 /*--set CCK and OFDM Block "ON"--*/ 2793 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1); 2794 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1); 2795 2796 if (priv->ResetProgress == RESET_TYPE_NORESET) { 2797 /* if D or C cut */ 2798 u8 tmpvalue; 2799 2800 read_nic_byte(dev, 0x301, &tmpvalue); 2801 if (tmpvalue == 0x03) { 2802 priv->bDcut = true; 2803 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n"); 2804 } else { 2805 priv->bDcut = false; 2806 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n"); 2807 } 2808 dm_initialize_txpower_tracking(dev); 2809 2810 if (priv->bDcut) { 2811 u32 i, TempCCk; 2812 u32 tmpRegA = rtl8192_QueryBBReg(dev, 2813 rOFDM0_XATxIQImbalance, 2814 bMaskDWord); 2815 2816 for (i = 0; i < TxBBGainTableLength; i++) { 2817 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) { 2818 priv->rfa_txpowertrackingindex = (u8)i; 2819 priv->rfa_txpowertrackingindex_real = 2820 (u8)i; 2821 priv->rfa_txpowertracking_default = 2822 priv->rfa_txpowertrackingindex; 2823 break; 2824 } 2825 } 2826 2827 TempCCk = rtl8192_QueryBBReg(dev, 2828 rCCK0_TxFilter1, 2829 bMaskByte2); 2830 2831 for (i = 0; i < CCKTxBBGainTableLength; i++) { 2832 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) { 2833 priv->cck_present_attenuation_20Mdefault = (u8)i; 2834 break; 2835 } 2836 } 2837 priv->cck_present_attenuation_40Mdefault = 0; 2838 priv->cck_present_attenuation_difference = 0; 2839 priv->cck_present_attenuation = 2840 priv->cck_present_attenuation_20Mdefault; 2841 } 2842 } 2843 write_nic_byte(dev, 0x87, 0x0); 2844 2845 return init_status; 2846 } 2847 2848 /* this configures registers for beacon tx and enables it via 2849 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might 2850 * be used to stop beacon transmission 2851 */ 2852 /*************************************************************************** 2853 * -------------------------------NET STUFF--------------------------- 2854 ***************************************************************************/ 2855 2856 static struct net_device_stats *rtl8192_stats(struct net_device *dev) 2857 { 2858 struct r8192_priv *priv = ieee80211_priv(dev); 2859 2860 return &priv->ieee80211->stats; 2861 } 2862 2863 static bool HalTxCheckStuck819xUsb(struct net_device *dev) 2864 { 2865 struct r8192_priv *priv = ieee80211_priv(dev); 2866 u16 RegTxCounter; 2867 bool bStuck = false; 2868 2869 read_nic_word(dev, 0x128, &RegTxCounter); 2870 RT_TRACE(COMP_RESET, 2871 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__, 2872 RegTxCounter, priv->TxCounter); 2873 if (priv->TxCounter == RegTxCounter) 2874 bStuck = true; 2875 2876 priv->TxCounter = RegTxCounter; 2877 2878 return bStuck; 2879 } 2880 2881 /* 2882 * <Assumption: RT_TX_SPINLOCK is acquired.> 2883 * First added: 2006.11.19 by emily 2884 */ 2885 static RESET_TYPE TxCheckStuck(struct net_device *dev) 2886 { 2887 struct r8192_priv *priv = ieee80211_priv(dev); 2888 u8 QueueID; 2889 bool bCheckFwTxCnt = false; 2890 2891 /* Decide such threshold according to current power save mode */ 2892 2893 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) { 2894 if (QueueID == TXCMD_QUEUE) 2895 continue; 2896 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0)) 2897 continue; 2898 2899 bCheckFwTxCnt = true; 2900 } 2901 if (bCheckFwTxCnt) { 2902 if (HalTxCheckStuck819xUsb(dev)) { 2903 RT_TRACE(COMP_RESET, 2904 "%s: Fw indicates no Tx condition!\n", 2905 __func__); 2906 return RESET_TYPE_SILENT; 2907 } 2908 } 2909 return RESET_TYPE_NORESET; 2910 } 2911 2912 static bool HalRxCheckStuck819xUsb(struct net_device *dev) 2913 { 2914 u16 RegRxCounter; 2915 struct r8192_priv *priv = ieee80211_priv(dev); 2916 bool bStuck = false; 2917 static u8 rx_chk_cnt; 2918 2919 read_nic_word(dev, 0x130, &RegRxCounter); 2920 RT_TRACE(COMP_RESET, 2921 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__, 2922 RegRxCounter, priv->RxCounter); 2923 /* If rssi is small, we should check rx for long time because of bad rx. 2924 * or maybe it will continuous silent reset every 2 seconds. 2925 */ 2926 rx_chk_cnt++; 2927 if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) { 2928 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */ 2929 } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) && 2930 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) || 2931 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) { 2932 if (rx_chk_cnt < 2) 2933 return bStuck; 2934 2935 rx_chk_cnt = 0; 2936 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) || 2937 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) && 2938 priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) { 2939 if (rx_chk_cnt < 4) 2940 return bStuck; 2941 2942 rx_chk_cnt = 0; 2943 } else { 2944 if (rx_chk_cnt < 8) 2945 return bStuck; 2946 2947 rx_chk_cnt = 0; 2948 } 2949 2950 if (priv->RxCounter == RegRxCounter) 2951 bStuck = true; 2952 2953 priv->RxCounter = RegRxCounter; 2954 2955 return bStuck; 2956 } 2957 2958 static RESET_TYPE RxCheckStuck(struct net_device *dev) 2959 { 2960 struct r8192_priv *priv = ieee80211_priv(dev); 2961 bool bRxCheck = false; 2962 2963 if (priv->IrpPendingCount > 1) 2964 bRxCheck = true; 2965 2966 if (bRxCheck) { 2967 if (HalRxCheckStuck819xUsb(dev)) { 2968 RT_TRACE(COMP_RESET, "RxStuck Condition\n"); 2969 return RESET_TYPE_SILENT; 2970 } 2971 } 2972 return RESET_TYPE_NORESET; 2973 } 2974 2975 /** 2976 * This function is called by Checkforhang to check whether we should 2977 * ask OS to reset driver 2978 * 2979 * \param pAdapter The adapter context for this miniport 2980 * 2981 * Note:NIC with USB interface sholud not call this function because we 2982 * cannot scan descriptor to judge whether there is tx stuck. 2983 * Note: This function may be required to be rewrite for Vista OS. 2984 * <<<Assumption: Tx spinlock has been acquired >>> 2985 * 2986 * 8185 and 8185b does not implement this function. 2987 */ 2988 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev) 2989 { 2990 struct r8192_priv *priv = ieee80211_priv(dev); 2991 RESET_TYPE TxResetType = RESET_TYPE_NORESET; 2992 RESET_TYPE RxResetType = RESET_TYPE_NORESET; 2993 RT_RF_POWER_STATE rfState; 2994 2995 rfState = priv->ieee80211->eRFPowerState; 2996 2997 TxResetType = TxCheckStuck(dev); 2998 if (rfState != eRfOff || 2999 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) { 3000 /* If driver is in the status of firmware download failure, 3001 * driver skips RF initialization and RF is in turned off 3002 * state. Driver should check whether Rx stuck and do silent 3003 * reset. And if driver is in firmware download failure status, 3004 * driver should initialize RF in the following silent reset 3005 * procedure 3006 * 3007 * Driver should not check RX stuck in IBSS mode because it is 3008 * required to set Check BSSID in order to send beacon, 3009 * however, if check BSSID is set, STA cannot hear any packet 3010 * at all. 3011 */ 3012 RxResetType = RxCheckStuck(dev); 3013 } 3014 if (TxResetType == RESET_TYPE_NORMAL || 3015 RxResetType == RESET_TYPE_NORMAL) { 3016 return RESET_TYPE_NORMAL; 3017 } else if (TxResetType == RESET_TYPE_SILENT || 3018 RxResetType == RESET_TYPE_SILENT) { 3019 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__); 3020 return RESET_TYPE_SILENT; 3021 } else { 3022 return RESET_TYPE_NORESET; 3023 } 3024 } 3025 3026 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv); 3027 static int _rtl8192_up(struct net_device *dev); 3028 static int rtl8192_close(struct net_device *dev); 3029 3030 static void CamRestoreAllEntry(struct net_device *dev) 3031 { 3032 u8 EntryId = 0; 3033 struct r8192_priv *priv = ieee80211_priv(dev); 3034 u8 *MacAddr = priv->ieee80211->current_network.bssid; 3035 3036 static u8 CAM_CONST_ADDR[4][6] = { 3037 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 3038 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, 3039 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, 3040 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} }; 3041 static u8 CAM_CONST_BROAD[] = { 3042 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3043 3044 RT_TRACE(COMP_SEC, "%s:\n", __func__); 3045 3046 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) || 3047 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) { 3048 for (EntryId = 0; EntryId < 4; EntryId++) { 3049 MacAddr = CAM_CONST_ADDR[EntryId]; 3050 setKey(dev, EntryId, EntryId, 3051 priv->ieee80211->pairwise_key_type, 3052 MacAddr, 0, NULL); 3053 } 3054 3055 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) { 3056 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3057 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3058 (u8 *)dev->dev_addr, 0, NULL); 3059 else 3060 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3061 MacAddr, 0, NULL); 3062 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) { 3063 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3064 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3065 (u8 *)dev->dev_addr, 0, NULL); 3066 else 3067 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, 3068 MacAddr, 0, NULL); 3069 } 3070 3071 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) { 3072 MacAddr = CAM_CONST_BROAD; 3073 for (EntryId = 1; EntryId < 4; EntryId++) { 3074 setKey(dev, EntryId, EntryId, 3075 priv->ieee80211->group_key_type, 3076 MacAddr, 0, NULL); 3077 } 3078 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3079 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3080 CAM_CONST_ADDR[0], 0, NULL); 3081 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) { 3082 MacAddr = CAM_CONST_BROAD; 3083 for (EntryId = 1; EntryId < 4; EntryId++) { 3084 setKey(dev, EntryId, EntryId, 3085 priv->ieee80211->group_key_type, 3086 MacAddr, 0, NULL); 3087 } 3088 3089 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) 3090 setKey(dev, 0, 0, priv->ieee80211->group_key_type, 3091 CAM_CONST_ADDR[0], 0, NULL); 3092 } 3093 } 3094 3095 /* This function is used to fix Tx/Rx stop bug temporarily. 3096 * This function will do "system reset" to NIC when Tx or Rx is stuck. 3097 * The method checking Tx/Rx stuck of this function is supported by FW, 3098 * which reports Tx and Rx counter to register 0x128 and 0x130. 3099 */ 3100 static void rtl819x_ifsilentreset(struct net_device *dev) 3101 { 3102 struct r8192_priv *priv = ieee80211_priv(dev); 3103 u8 reset_times = 0; 3104 int reset_status = 0; 3105 struct ieee80211_device *ieee = priv->ieee80211; 3106 3107 /* If we need to check CCK stop, please uncomment this line. */ 3108 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */ 3109 3110 if (priv->ResetProgress == RESET_TYPE_NORESET) { 3111 RESET_START: 3112 3113 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n"); 3114 3115 /* Set the variable for reset. */ 3116 priv->ResetProgress = RESET_TYPE_SILENT; 3117 mutex_lock(&priv->wx_mutex); 3118 if (priv->up == 0) { 3119 RT_TRACE(COMP_ERR, 3120 "%s():the driver is not up! return\n", 3121 __func__); 3122 mutex_unlock(&priv->wx_mutex); 3123 return; 3124 } 3125 priv->up = 0; 3126 RT_TRACE(COMP_RESET, 3127 "%s():======>start to down the driver\n", 3128 __func__); 3129 3130 rtl8192_rtx_disable(dev); 3131 rtl8192_cancel_deferred_work(priv); 3132 deinit_hal_dm(dev); 3133 del_timer_sync(&priv->watch_dog_timer); 3134 3135 ieee->sync_scan_hurryup = 1; 3136 if (ieee->state == IEEE80211_LINKED) { 3137 mutex_lock(&ieee->wx_mutex); 3138 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n"); 3139 ieee80211_stop_send_beacons(priv->ieee80211); 3140 del_timer_sync(&ieee->associate_timer); 3141 cancel_delayed_work(&ieee->associate_retry_wq); 3142 ieee80211_stop_scan(ieee); 3143 netif_carrier_off(dev); 3144 mutex_unlock(&ieee->wx_mutex); 3145 } else { 3146 netdev_dbg(dev, "ieee->state is NOT LINKED\n"); 3147 ieee80211_softmac_stop_protocol(priv->ieee80211); 3148 } 3149 mutex_unlock(&priv->wx_mutex); 3150 RT_TRACE(COMP_RESET, 3151 "%s():<==========down process is finished\n", 3152 __func__); 3153 RT_TRACE(COMP_RESET, 3154 "%s():===========>start up the driver\n", 3155 __func__); 3156 reset_status = _rtl8192_up(dev); 3157 3158 RT_TRACE(COMP_RESET, 3159 "%s():<===========up process is finished\n", 3160 __func__); 3161 if (reset_status == -EAGAIN) { 3162 if (reset_times < 3) { 3163 reset_times++; 3164 goto RESET_START; 3165 } else { 3166 RT_TRACE(COMP_ERR, 3167 " ERR!!! %s(): Reset Failed!!\n", 3168 __func__); 3169 } 3170 } 3171 ieee->is_silent_reset = 1; 3172 EnableHWSecurityConfig8192(dev); 3173 if (ieee->state == IEEE80211_LINKED && 3174 ieee->iw_mode == IW_MODE_INFRA) { 3175 ieee->set_chan(ieee->dev, 3176 ieee->current_network.channel); 3177 3178 queue_work(ieee->wq, &ieee->associate_complete_wq); 3179 3180 } else if (ieee->state == IEEE80211_LINKED && 3181 ieee->iw_mode == IW_MODE_ADHOC) { 3182 ieee->set_chan(ieee->dev, 3183 ieee->current_network.channel); 3184 ieee->link_change(ieee->dev); 3185 3186 ieee80211_start_send_beacons(ieee); 3187 3188 if (ieee->data_hard_resume) 3189 ieee->data_hard_resume(ieee->dev); 3190 netif_carrier_on(ieee->dev); 3191 } 3192 3193 CamRestoreAllEntry(dev); 3194 3195 priv->ResetProgress = RESET_TYPE_NORESET; 3196 priv->reset_count++; 3197 3198 priv->bForcedSilentReset = false; 3199 priv->bResetInProgress = false; 3200 3201 /* For test --> force write UFWP. */ 3202 write_nic_byte(dev, UFWP, 1); 3203 RT_TRACE(COMP_RESET, 3204 "Reset finished!! ====>[%d]\n", 3205 priv->reset_count); 3206 } 3207 } 3208 3209 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum, 3210 u32 *TotalRxDataNum) 3211 { 3212 u16 SlotIndex; 3213 u8 i; 3214 3215 *TotalRxBcnNum = 0; 3216 *TotalRxDataNum = 0; 3217 3218 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) % 3219 (priv->ieee80211->LinkDetectInfo.SlotNum); 3220 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] = 3221 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod; 3222 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] = 3223 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod; 3224 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) { 3225 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i]; 3226 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i]; 3227 } 3228 } 3229 3230 static void rtl819x_watchdog_wqcallback(struct work_struct *work) 3231 { 3232 struct delayed_work *dwork = to_delayed_work(work); 3233 struct r8192_priv *priv = container_of(dwork, 3234 struct r8192_priv, watch_dog_wq); 3235 struct net_device *dev = priv->ieee80211->dev; 3236 struct ieee80211_device *ieee = priv->ieee80211; 3237 RESET_TYPE ResetType = RESET_TYPE_NORESET; 3238 static u8 check_reset_cnt; 3239 bool bBusyTraffic = false; 3240 u32 TotalRxBcnNum = 0; 3241 u32 TotalRxDataNum = 0; 3242 3243 if (!priv->up) 3244 return; 3245 hal_dm_watchdog(dev); 3246 3247 /* to get busy traffic condition */ 3248 if (ieee->state == IEEE80211_LINKED) { 3249 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 || 3250 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) { 3251 bBusyTraffic = true; 3252 } 3253 ieee->LinkDetectInfo.NumRxOkInPeriod = 0; 3254 ieee->LinkDetectInfo.NumTxOkInPeriod = 0; 3255 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic; 3256 } 3257 /* for AP roaming */ 3258 if (priv->ieee80211->state == IEEE80211_LINKED && 3259 priv->ieee80211->iw_mode == IW_MODE_INFRA) { 3260 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum); 3261 if ((TotalRxBcnNum + TotalRxDataNum) == 0) { 3262 #ifdef TODO 3263 if (rfState == eRfOff) 3264 RT_TRACE(COMP_ERR, "========>%s()\n", __func__); 3265 #endif 3266 netdev_dbg(dev, 3267 "===>%s(): AP is power off, connect another one\n", 3268 __func__); 3269 priv->ieee80211->state = IEEE80211_ASSOCIATING; 3270 notify_wx_assoc_event(priv->ieee80211); 3271 RemovePeerTS(priv->ieee80211, 3272 priv->ieee80211->current_network.bssid); 3273 priv->ieee80211->link_change(dev); 3274 queue_work(priv->ieee80211->wq, 3275 &priv->ieee80211->associate_procedure_wq); 3276 } 3277 } 3278 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0; 3279 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0; 3280 /* check if reset the driver */ 3281 if (check_reset_cnt++ >= 3) { 3282 ResetType = rtl819x_ifcheck_resetornot(dev); 3283 check_reset_cnt = 3; 3284 } 3285 /* This is control by OID set in Pomelo */ 3286 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET && 3287 (priv->bForcedSilentReset || 3288 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) { 3289 RT_TRACE(COMP_RESET, 3290 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n", 3291 __func__, priv->force_reset, priv->ResetProgress, 3292 priv->bForcedSilentReset, 3293 priv->bDisableNormalResetCheck, ResetType); 3294 rtl819x_ifsilentreset(dev); 3295 } 3296 priv->force_reset = false; 3297 priv->bForcedSilentReset = false; 3298 priv->bResetInProgress = false; 3299 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n"); 3300 } 3301 3302 static void watch_dog_timer_callback(struct timer_list *t) 3303 { 3304 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer); 3305 3306 schedule_delayed_work(&priv->watch_dog_wq, 0); 3307 mod_timer(&priv->watch_dog_timer, 3308 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME)); 3309 } 3310 3311 static int _rtl8192_up(struct net_device *dev) 3312 { 3313 struct r8192_priv *priv = ieee80211_priv(dev); 3314 int init_status = 0; 3315 3316 priv->up = 1; 3317 priv->ieee80211->ieee_up = 1; 3318 RT_TRACE(COMP_INIT, "Bringing up iface"); 3319 init_status = rtl8192_adapter_start(dev); 3320 if (!init_status) { 3321 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n", 3322 __func__); 3323 priv->up = priv->ieee80211->ieee_up = 0; 3324 return -EAGAIN; 3325 } 3326 RT_TRACE(COMP_INIT, "start adapter finished\n"); 3327 rtl8192_rx_enable(dev); 3328 if (priv->ieee80211->state != IEEE80211_LINKED) 3329 ieee80211_softmac_start_protocol(priv->ieee80211); 3330 ieee80211_reset_queue(priv->ieee80211); 3331 watch_dog_timer_callback(&priv->watch_dog_timer); 3332 if (!netif_queue_stopped(dev)) 3333 netif_start_queue(dev); 3334 else 3335 netif_wake_queue(dev); 3336 3337 return 0; 3338 } 3339 3340 static int rtl8192_open(struct net_device *dev) 3341 { 3342 struct r8192_priv *priv = ieee80211_priv(dev); 3343 int ret; 3344 3345 mutex_lock(&priv->wx_mutex); 3346 ret = rtl8192_up(dev); 3347 mutex_unlock(&priv->wx_mutex); 3348 return ret; 3349 } 3350 3351 int rtl8192_up(struct net_device *dev) 3352 { 3353 struct r8192_priv *priv = ieee80211_priv(dev); 3354 3355 if (priv->up == 1) 3356 return -1; 3357 3358 return _rtl8192_up(dev); 3359 } 3360 3361 static int rtl8192_close(struct net_device *dev) 3362 { 3363 struct r8192_priv *priv = ieee80211_priv(dev); 3364 int ret; 3365 3366 mutex_lock(&priv->wx_mutex); 3367 3368 ret = rtl8192_down(dev); 3369 3370 mutex_unlock(&priv->wx_mutex); 3371 3372 return ret; 3373 } 3374 3375 int rtl8192_down(struct net_device *dev) 3376 { 3377 struct r8192_priv *priv = ieee80211_priv(dev); 3378 int i; 3379 3380 if (priv->up == 0) 3381 return -1; 3382 3383 priv->up = 0; 3384 priv->ieee80211->ieee_up = 0; 3385 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__); 3386 /* FIXME */ 3387 if (!netif_queue_stopped(dev)) 3388 netif_stop_queue(dev); 3389 3390 rtl8192_rtx_disable(dev); 3391 3392 /* Tx related queue release */ 3393 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3394 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]); 3395 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3396 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]); 3397 3398 for (i = 0; i < MAX_QUEUE_SIZE; i++) 3399 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]); 3400 3401 /* as cancel_delayed_work will del work->timer, so if work is not 3402 * defined as struct delayed_work, it will corrupt 3403 */ 3404 rtl8192_cancel_deferred_work(priv); 3405 deinit_hal_dm(dev); 3406 del_timer_sync(&priv->watch_dog_timer); 3407 3408 ieee80211_softmac_stop_protocol(priv->ieee80211); 3409 memset(&priv->ieee80211->current_network, 0, 3410 offsetof(struct ieee80211_network, list)); 3411 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__); 3412 3413 return 0; 3414 } 3415 3416 void rtl8192_commit(struct net_device *dev) 3417 { 3418 struct r8192_priv *priv = ieee80211_priv(dev); 3419 int reset_status = 0; 3420 3421 if (priv->up == 0) 3422 return; 3423 priv->up = 0; 3424 3425 rtl8192_cancel_deferred_work(priv); 3426 del_timer_sync(&priv->watch_dog_timer); 3427 3428 ieee80211_softmac_stop_protocol(priv->ieee80211); 3429 3430 rtl8192_rtx_disable(dev); 3431 reset_status = _rtl8192_up(dev); 3432 } 3433 3434 static void rtl8192_restart(struct work_struct *work) 3435 { 3436 struct r8192_priv *priv = container_of(work, struct r8192_priv, 3437 reset_wq); 3438 struct net_device *dev = priv->ieee80211->dev; 3439 3440 mutex_lock(&priv->wx_mutex); 3441 3442 rtl8192_commit(dev); 3443 3444 mutex_unlock(&priv->wx_mutex); 3445 } 3446 3447 static void r8192_set_multicast(struct net_device *dev) 3448 { 3449 struct r8192_priv *priv = ieee80211_priv(dev); 3450 short promisc; 3451 3452 /* FIXME FIXME */ 3453 3454 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; 3455 3456 if (promisc != priv->promisc) 3457 3458 priv->promisc = promisc; 3459 } 3460 3461 static int r8192_set_mac_adr(struct net_device *dev, void *mac) 3462 { 3463 struct r8192_priv *priv = ieee80211_priv(dev); 3464 struct sockaddr *addr = mac; 3465 3466 mutex_lock(&priv->wx_mutex); 3467 3468 ether_addr_copy(dev->dev_addr, addr->sa_data); 3469 3470 schedule_work(&priv->reset_wq); 3471 mutex_unlock(&priv->wx_mutex); 3472 3473 return 0; 3474 } 3475 3476 /* based on ipw2200 driver */ 3477 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 3478 { 3479 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3480 struct iwreq *wrq = (struct iwreq *)rq; 3481 int ret = -1; 3482 struct ieee80211_device *ieee = priv->ieee80211; 3483 u32 key[4]; 3484 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3485 struct iw_point *p = &wrq->u.data; 3486 struct ieee_param *ipw = NULL; 3487 3488 mutex_lock(&priv->wx_mutex); 3489 3490 if (p->length < sizeof(struct ieee_param) || !p->pointer) { 3491 ret = -EINVAL; 3492 goto out; 3493 } 3494 3495 ipw = memdup_user(p->pointer, p->length); 3496 if (IS_ERR(ipw)) { 3497 ret = PTR_ERR(ipw); 3498 goto out; 3499 } 3500 3501 switch (cmd) { 3502 case RTL_IOCTL_WPA_SUPPLICANT: 3503 /* parse here for HW security */ 3504 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) { 3505 if (ipw->u.crypt.set_tx) { 3506 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3507 ieee->pairwise_key_type = KEY_TYPE_CCMP; 3508 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3509 ieee->pairwise_key_type = KEY_TYPE_TKIP; 3510 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3511 if (ipw->u.crypt.key_len == 13) 3512 ieee->pairwise_key_type = KEY_TYPE_WEP104; 3513 else if (ipw->u.crypt.key_len == 5) 3514 ieee->pairwise_key_type = KEY_TYPE_WEP40; 3515 } else { 3516 ieee->pairwise_key_type = KEY_TYPE_NA; 3517 } 3518 3519 if (ieee->pairwise_key_type) { 3520 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3521 EnableHWSecurityConfig8192(dev); 3522 /* We fill both index entry and 4th 3523 * entry for pairwise key as in IPW 3524 * interface, adhoc will only get here, 3525 * so we need index entry for its 3526 * default key serching! 3527 */ 3528 setKey(dev, 4, ipw->u.crypt.idx, 3529 ieee->pairwise_key_type, 3530 (u8 *)ieee->ap_mac_addr, 3531 0, key); 3532 if (ieee->auth_mode != 2) 3533 setKey(dev, ipw->u.crypt.idx, 3534 ipw->u.crypt.idx, 3535 ieee->pairwise_key_type, 3536 (u8 *)ieee->ap_mac_addr, 3537 0, key); 3538 } 3539 } else { 3540 memcpy((u8 *)key, ipw->u.crypt.key, 16); 3541 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { 3542 ieee->group_key_type = KEY_TYPE_CCMP; 3543 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { 3544 ieee->group_key_type = KEY_TYPE_TKIP; 3545 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { 3546 if (ipw->u.crypt.key_len == 13) 3547 ieee->group_key_type = KEY_TYPE_WEP104; 3548 else if (ipw->u.crypt.key_len == 5) 3549 ieee->group_key_type = KEY_TYPE_WEP40; 3550 } else { 3551 ieee->group_key_type = KEY_TYPE_NA; 3552 } 3553 3554 if (ieee->group_key_type) { 3555 setKey(dev, ipw->u.crypt.idx, 3556 /* KeyIndex */ 3557 ipw->u.crypt.idx, 3558 /* KeyType */ 3559 ieee->group_key_type, 3560 /* MacAddr */ 3561 broadcast_addr, 3562 /* DefaultKey */ 3563 0, 3564 /* KeyContent */ 3565 key); 3566 } 3567 } 3568 } 3569 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, 3570 &wrq->u.data); 3571 break; 3572 3573 default: 3574 ret = -EOPNOTSUPP; 3575 break; 3576 } 3577 kfree(ipw); 3578 ipw = NULL; 3579 out: 3580 mutex_unlock(&priv->wx_mutex); 3581 return ret; 3582 } 3583 3584 static u8 HwRateToMRate90(bool bIsHT, u8 rate) 3585 { 3586 u8 ret_rate = 0xff; 3587 3588 if (!bIsHT) { 3589 switch (rate) { 3590 case DESC90_RATE1M: 3591 ret_rate = MGN_1M; 3592 break; 3593 case DESC90_RATE2M: 3594 ret_rate = MGN_2M; 3595 break; 3596 case DESC90_RATE5_5M: 3597 ret_rate = MGN_5_5M; 3598 break; 3599 case DESC90_RATE11M: 3600 ret_rate = MGN_11M; 3601 break; 3602 case DESC90_RATE6M: 3603 ret_rate = MGN_6M; 3604 break; 3605 case DESC90_RATE9M: 3606 ret_rate = MGN_9M; 3607 break; 3608 case DESC90_RATE12M: 3609 ret_rate = MGN_12M; 3610 break; 3611 case DESC90_RATE18M: 3612 ret_rate = MGN_18M; 3613 break; 3614 case DESC90_RATE24M: 3615 ret_rate = MGN_24M; 3616 break; 3617 case DESC90_RATE36M: 3618 ret_rate = MGN_36M; 3619 break; 3620 case DESC90_RATE48M: 3621 ret_rate = MGN_48M; 3622 break; 3623 case DESC90_RATE54M: 3624 ret_rate = MGN_54M; 3625 break; 3626 3627 default: 3628 ret_rate = 0xff; 3629 RT_TRACE(COMP_RECV, 3630 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3631 __func__, rate, bIsHT); 3632 break; 3633 } 3634 3635 } else { 3636 switch (rate) { 3637 case DESC90_RATEMCS0: 3638 ret_rate = MGN_MCS0; 3639 break; 3640 case DESC90_RATEMCS1: 3641 ret_rate = MGN_MCS1; 3642 break; 3643 case DESC90_RATEMCS2: 3644 ret_rate = MGN_MCS2; 3645 break; 3646 case DESC90_RATEMCS3: 3647 ret_rate = MGN_MCS3; 3648 break; 3649 case DESC90_RATEMCS4: 3650 ret_rate = MGN_MCS4; 3651 break; 3652 case DESC90_RATEMCS5: 3653 ret_rate = MGN_MCS5; 3654 break; 3655 case DESC90_RATEMCS6: 3656 ret_rate = MGN_MCS6; 3657 break; 3658 case DESC90_RATEMCS7: 3659 ret_rate = MGN_MCS7; 3660 break; 3661 case DESC90_RATEMCS8: 3662 ret_rate = MGN_MCS8; 3663 break; 3664 case DESC90_RATEMCS9: 3665 ret_rate = MGN_MCS9; 3666 break; 3667 case DESC90_RATEMCS10: 3668 ret_rate = MGN_MCS10; 3669 break; 3670 case DESC90_RATEMCS11: 3671 ret_rate = MGN_MCS11; 3672 break; 3673 case DESC90_RATEMCS12: 3674 ret_rate = MGN_MCS12; 3675 break; 3676 case DESC90_RATEMCS13: 3677 ret_rate = MGN_MCS13; 3678 break; 3679 case DESC90_RATEMCS14: 3680 ret_rate = MGN_MCS14; 3681 break; 3682 case DESC90_RATEMCS15: 3683 ret_rate = MGN_MCS15; 3684 break; 3685 case DESC90_RATEMCS32: 3686 ret_rate = 0x80 | 0x20; 3687 break; 3688 3689 default: 3690 ret_rate = 0xff; 3691 RT_TRACE(COMP_RECV, 3692 "%s: Non supported Rate [%x], bIsHT = %d!!!\n", 3693 __func__, rate, bIsHT); 3694 break; 3695 } 3696 } 3697 3698 return ret_rate; 3699 } 3700 3701 /** 3702 * Function: UpdateRxPktTimeStamp 3703 * Overview: Record the TSF time stamp when receiving a packet 3704 * 3705 * Input: 3706 * PADAPTER Adapter 3707 * PRT_RFD pRfd, 3708 * 3709 * Output: 3710 * PRT_RFD pRfd 3711 * (pRfd->Status.TimeStampHigh is updated) 3712 * (pRfd->Status.TimeStampLow is updated) 3713 * Return: 3714 * None 3715 */ 3716 static void UpdateRxPktTimeStamp8190(struct net_device *dev, 3717 struct ieee80211_rx_stats *stats) 3718 { 3719 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 3720 3721 if (stats->bIsAMPDU && !stats->bFirstMPDU) { 3722 stats->mac_time[0] = priv->LastRxDescTSFLow; 3723 stats->mac_time[1] = priv->LastRxDescTSFHigh; 3724 } else { 3725 priv->LastRxDescTSFLow = stats->mac_time[0]; 3726 priv->LastRxDescTSFHigh = stats->mac_time[1]; 3727 } 3728 } 3729 3730 /* 0-100 index. */ 3731 static long rtl819x_translate_todbm(u8 signal_strength_index) 3732 { 3733 long signal_power; /* in dBm. */ 3734 3735 /* Translate to dBm (x=0.5y-95). */ 3736 signal_power = (long)((signal_strength_index + 1) >> 1); 3737 signal_power -= 95; 3738 3739 return signal_power; 3740 } 3741 3742 /* We can not declare RSSI/EVM total value of sliding window to 3743 * be a local static. Otherwise, it may increase when we return from S3/S4. The 3744 * value will be kept in memory or disk. Declare the value in the adaptor 3745 * and it will be reinitialized when returned from S3/S4. 3746 */ 3747 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer, 3748 struct ieee80211_rx_stats *pprevious_stats, 3749 struct ieee80211_rx_stats *pcurrent_stats) 3750 { 3751 bool bcheck = false; 3752 u8 rfpath; 3753 u32 nspatial_stream, tmp_val; 3754 static u32 slide_rssi_index, slide_rssi_statistics; 3755 static u32 slide_evm_index, slide_evm_statistics; 3756 static u32 last_rssi, last_evm; 3757 3758 static u32 slide_beacon_adc_pwdb_index; 3759 static u32 slide_beacon_adc_pwdb_statistics; 3760 static u32 last_beacon_adc_pwdb; 3761 3762 struct rtl_80211_hdr_3addr *hdr; 3763 u16 sc; 3764 unsigned int seq; 3765 3766 hdr = (struct rtl_80211_hdr_3addr *)buffer; 3767 sc = le16_to_cpu(hdr->seq_ctl); 3768 seq = WLAN_GET_SEQ_SEQ(sc); 3769 /* to record the sequence number */ 3770 pcurrent_stats->Seq_Num = seq; 3771 3772 /* Check whether we should take the previous packet into accounting */ 3773 if (!pprevious_stats->bIsAMPDU) { 3774 /* if previous packet is not aggregated packet */ 3775 bcheck = true; 3776 } 3777 3778 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 3779 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX; 3780 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index]; 3781 priv->stats.slide_rssi_total -= last_rssi; 3782 } 3783 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength; 3784 3785 priv->stats.slide_signal_strength[slide_rssi_index++] = 3786 pprevious_stats->SignalStrength; 3787 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX) 3788 slide_rssi_index = 0; 3789 3790 /* <1> Showed on UI for user, in dbm */ 3791 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics; 3792 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val); 3793 pcurrent_stats->rssi = priv->stats.signal_strength; 3794 3795 /* If the previous packet does not match the criteria, neglect it */ 3796 if (!pprevious_stats->bPacketMatchBSSID) { 3797 if (!pprevious_stats->bToSelfBA) 3798 return; 3799 } 3800 3801 if (!bcheck) 3802 return; 3803 3804 /* only rtl8190 supported 3805 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats); 3806 */ 3807 3808 /* Check RSSI */ 3809 priv->stats.num_process_phyinfo++; 3810 3811 /* record the general signal strength to the sliding window. */ 3812 3813 /* <2> Showed on UI for engineering 3814 * hardware does not provide rssi information for each rf path in CCK 3815 */ 3816 if (!pprevious_stats->bIsCCK && 3817 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) { 3818 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) { 3819 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, 3820 rfpath)) 3821 continue; 3822 if (priv->stats.rx_rssi_percentage[rfpath] == 0) 3823 priv->stats.rx_rssi_percentage[rfpath] = 3824 pprevious_stats->RxMIMOSignalStrength[rfpath]; 3825 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) { 3826 priv->stats.rx_rssi_percentage[rfpath] = 3827 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + 3828 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); 3829 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1; 3830 } else { 3831 priv->stats.rx_rssi_percentage[rfpath] = 3832 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + 3833 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); 3834 } 3835 RT_TRACE(COMP_DBG, 3836 "priv->stats.rx_rssi_percentage[rfPath] = %d\n", 3837 priv->stats.rx_rssi_percentage[rfpath]); 3838 } 3839 } 3840 3841 /* Check PWDB. */ 3842 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 3843 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 3844 pprevious_stats->RxPWDBAll); 3845 3846 if (pprevious_stats->bPacketBeacon) { 3847 /* record the beacon pwdb to the sliding window. */ 3848 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) { 3849 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX; 3850 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index]; 3851 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb; 3852 } 3853 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll; 3854 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll; 3855 slide_beacon_adc_pwdb_index++; 3856 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX) 3857 slide_beacon_adc_pwdb_index = 0; 3858 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics; 3859 if (pprevious_stats->RxPWDBAll >= 3) 3860 pprevious_stats->RxPWDBAll -= 3; 3861 } 3862 3863 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", 3864 pprevious_stats->bIsCCK ? "CCK" : "OFDM", 3865 pprevious_stats->RxPWDBAll); 3866 3867 if (pprevious_stats->bPacketToSelf || 3868 pprevious_stats->bPacketBeacon || 3869 pprevious_stats->bToSelfBA) { 3870 if (priv->undecorated_smoothed_pwdb < 0) 3871 /* initialize */ 3872 priv->undecorated_smoothed_pwdb = 3873 pprevious_stats->RxPWDBAll; 3874 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) { 3875 priv->undecorated_smoothed_pwdb = 3876 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + 3877 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); 3878 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1; 3879 } else { 3880 priv->undecorated_smoothed_pwdb = 3881 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + 3882 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); 3883 } 3884 } 3885 3886 /* Check EVM */ 3887 /* record the general EVM to the sliding window. */ 3888 if (pprevious_stats->SignalQuality) { 3889 if (pprevious_stats->bPacketToSelf || 3890 pprevious_stats->bPacketBeacon || 3891 pprevious_stats->bToSelfBA) { 3892 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { 3893 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX; 3894 last_evm = priv->stats.slide_evm[slide_evm_index]; 3895 priv->stats.slide_evm_total -= last_evm; 3896 } 3897 3898 priv->stats.slide_evm_total += 3899 pprevious_stats->SignalQuality; 3900 3901 priv->stats.slide_evm[slide_evm_index++] = 3902 pprevious_stats->SignalQuality; 3903 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX) 3904 slide_evm_index = 0; 3905 3906 /* <1> Showed on UI for user, in percentage. */ 3907 tmp_val = priv->stats.slide_evm_total / 3908 slide_evm_statistics; 3909 priv->stats.signal_quality = tmp_val; 3910 /* Showed on UI for user in Windows Vista, 3911 * for Link quality. 3912 */ 3913 priv->stats.last_signal_strength_inpercent = tmp_val; 3914 } 3915 3916 /* <2> Showed on UI for engineering */ 3917 if (pprevious_stats->bPacketToSelf || 3918 pprevious_stats->bPacketBeacon || 3919 pprevious_stats->bToSelfBA) { 3920 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */ 3921 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) { 3922 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */ 3923 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream]; 3924 priv->stats.rx_evm_percentage[nspatial_stream] = 3925 ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) + 3926 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR); 3927 } 3928 } 3929 } 3930 } 3931 } 3932 3933 /*----------------------------------------------------------------------------- 3934 * Function: rtl819x_query_rxpwrpercentage() 3935 * 3936 * Overview: 3937 * 3938 * Input: char antpower 3939 * 3940 * Output: NONE 3941 * 3942 * Return: 0-100 percentage 3943 *--------------------------------------------------------------------------- 3944 */ 3945 static u8 rtl819x_query_rxpwrpercentage(s8 antpower) 3946 { 3947 if ((antpower <= -100) || (antpower >= 20)) 3948 return 0; 3949 else if (antpower >= 0) 3950 return 100; 3951 else 3952 return 100 + antpower; 3953 3954 } /* QueryRxPwrPercentage */ 3955 3956 static u8 rtl819x_evm_dbtopercentage(s8 value) 3957 { 3958 s8 ret_val = clamp(-value, 0, 33) * 3; 3959 3960 if (ret_val == 99) 3961 ret_val = 100; 3962 3963 return ret_val; 3964 } 3965 3966 /* We want good-looking for signal strength/quality */ 3967 static long rtl819x_signal_scale_mapping(long currsig) 3968 { 3969 long retsig; 3970 3971 /* Step 1. Scale mapping. */ 3972 if (currsig >= 61 && currsig <= 100) 3973 retsig = 90 + ((currsig - 60) / 4); 3974 else if (currsig >= 41 && currsig <= 60) 3975 retsig = 78 + ((currsig - 40) / 2); 3976 else if (currsig >= 31 && currsig <= 40) 3977 retsig = 66 + (currsig - 30); 3978 else if (currsig >= 21 && currsig <= 30) 3979 retsig = 54 + (currsig - 20); 3980 else if (currsig >= 5 && currsig <= 20) 3981 retsig = 42 + (((currsig - 5) * 2) / 3); 3982 else if (currsig == 4) 3983 retsig = 36; 3984 else if (currsig == 3) 3985 retsig = 27; 3986 else if (currsig == 2) 3987 retsig = 18; 3988 else if (currsig == 1) 3989 retsig = 9; 3990 else 3991 retsig = currsig; 3992 3993 return retsig; 3994 } 3995 3996 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo) 3997 { 3998 if (pdrvinfo->RxHT) 3999 return false; 4000 4001 switch (pdrvinfo->RxRate) { 4002 case DESC90_RATE1M: 4003 case DESC90_RATE2M: 4004 case DESC90_RATE5_5M: 4005 case DESC90_RATE11M: 4006 return true; 4007 default: 4008 return false; 4009 } 4010 } 4011 4012 static void rtl8192_query_rxphystatus(struct r8192_priv *priv, 4013 struct ieee80211_rx_stats *pstats, 4014 struct rx_drvinfo_819x_usb *pdrvinfo, 4015 struct ieee80211_rx_stats *precord_stats, 4016 bool bpacket_match_bssid, 4017 bool bpacket_toself, 4018 bool bPacketBeacon, 4019 bool bToSelfBA) 4020 { 4021 phy_sts_ofdm_819xusb_t *pofdm_buf; 4022 phy_sts_cck_819xusb_t *pcck_buf; 4023 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc; 4024 u8 *prxpkt; 4025 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg; 4026 s8 rx_pwr[4], rx_pwr_all = 0; 4027 s8 rx_snrX, rx_evmX; 4028 u8 evm, pwdb_all; 4029 u32 RSSI, total_rssi = 0; 4030 u8 is_cck_rate = 0; 4031 u8 rf_rx_num = 0; 4032 u8 sq; 4033 4034 priv->stats.numqry_phystatus++; 4035 4036 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo); 4037 4038 /* Record it for next packet processing */ 4039 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats)); 4040 pstats->bPacketMatchBSSID = 4041 precord_stats->bPacketMatchBSSID = bpacket_match_bssid; 4042 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself; 4043 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate; 4044 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon; 4045 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA; 4046 4047 prxpkt = (u8 *)pdrvinfo; 4048 4049 /* Move pointer to the 16th bytes. Phy status start address. */ 4050 prxpkt += sizeof(struct rx_drvinfo_819x_usb); 4051 4052 /* Initial the cck and ofdm buffer pointer */ 4053 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt; 4054 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt; 4055 4056 pstats->RxMIMOSignalQuality[0] = -1; 4057 pstats->RxMIMOSignalQuality[1] = -1; 4058 precord_stats->RxMIMOSignalQuality[0] = -1; 4059 precord_stats->RxMIMOSignalQuality[1] = -1; 4060 4061 if (is_cck_rate) { 4062 /* (1)Hardware does not provide RSSI for CCK */ 4063 4064 /* (2)PWDB, Average PWDB calculated by hardware 4065 * (for rate adaptive) 4066 */ 4067 u8 report; 4068 4069 priv->stats.numqry_phystatusCCK++; 4070 4071 if (!priv->bCckHighPower) { 4072 report = pcck_buf->cck_agc_rpt & 0xc0; 4073 report >>= 6; 4074 switch (report) { 4075 case 0x3: 4076 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e); 4077 break; 4078 case 0x2: 4079 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e); 4080 break; 4081 case 0x1: 4082 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e); 4083 break; 4084 case 0x0: 4085 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e); 4086 break; 4087 } 4088 } else { 4089 report = pcck_buf->cck_agc_rpt & 0x60; 4090 report >>= 5; 4091 switch (report) { 4092 case 0x3: 4093 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4094 break; 4095 case 0x2: 4096 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4097 break; 4098 case 0x1: 4099 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4100 break; 4101 case 0x0: 4102 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); 4103 break; 4104 } 4105 } 4106 4107 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4108 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4109 pstats->RecvSignalPower = pwdb_all; 4110 4111 /* (3) Get Signal Quality (EVM) */ 4112 4113 if (pstats->RxPWDBAll > 40) { 4114 sq = 100; 4115 } else { 4116 sq = pcck_buf->sq_rpt; 4117 4118 if (pcck_buf->sq_rpt > 64) 4119 sq = 0; 4120 else if (pcck_buf->sq_rpt < 20) 4121 sq = 100; 4122 else 4123 sq = ((64 - sq) * 100) / 44; 4124 } 4125 pstats->SignalQuality = precord_stats->SignalQuality = sq; 4126 pstats->RxMIMOSignalQuality[0] = 4127 precord_stats->RxMIMOSignalQuality[0] = sq; 4128 pstats->RxMIMOSignalQuality[1] = 4129 precord_stats->RxMIMOSignalQuality[1] = -1; 4130 4131 } else { 4132 priv->stats.numqry_phystatusHT++; 4133 4134 /* (1)Get RSSI for HT rate */ 4135 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) { 4136 /* We will judge RF RX path now. */ 4137 if (priv->brfpath_rxenable[i]) 4138 rf_rx_num++; 4139 else 4140 continue; 4141 4142 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, i)) 4143 continue; 4144 4145 rx_pwr[i] = 4146 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106; 4147 4148 /* Get Rx snr value in DB */ 4149 tmp_rxsnr = pofdm_buf->rxsnr_X[i]; 4150 rx_snrX = (s8)(tmp_rxsnr); 4151 rx_snrX /= 2; 4152 priv->stats.rxSNRdB[i] = (long)rx_snrX; 4153 4154 /* Translate DBM to percentage. */ 4155 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]); 4156 total_rssi += RSSI; 4157 4158 /* Record Signal Strength for next packet */ 4159 pstats->RxMIMOSignalStrength[i] = (u8)RSSI; 4160 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI; 4161 } 4162 4163 /* (2)PWDB, Average PWDB calculated by hardware 4164 * (for rate adaptive) 4165 */ 4166 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106; 4167 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); 4168 4169 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; 4170 pstats->RxPower = precord_stats->RxPower = rx_pwr_all; 4171 4172 /* (3)EVM of HT rate */ 4173 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 && 4174 pdrvinfo->RxRate <= DESC90_RATEMCS15) 4175 /* both spatial stream make sense */ 4176 max_spatial_stream = 2; 4177 else 4178 /* only spatial stream 1 makes sense */ 4179 max_spatial_stream = 1; 4180 4181 for (i = 0; i < max_spatial_stream; i++) { 4182 tmp_rxevm = pofdm_buf->rxevm_X[i]; 4183 rx_evmX = (s8)(tmp_rxevm); 4184 4185 /* Do not use shift operation like "rx_evmX >>= 1" 4186 * because the compiler of free build environment will 4187 * set the most significant bit to "zero" when doing 4188 * shifting operation which may change a negative value 4189 * to positive one, then the dbm value (which is 4190 * supposed to be negative) is not correct anymore. 4191 */ 4192 rx_evmX /= 2; /* dbm */ 4193 4194 evm = rtl819x_evm_dbtopercentage(rx_evmX); 4195 if (i == 0) 4196 /* Fill value in RFD, Get the first spatial 4197 * stream only 4198 */ 4199 pstats->SignalQuality = 4200 precord_stats->SignalQuality = 4201 evm & 0xff; 4202 pstats->RxMIMOSignalQuality[i] = 4203 precord_stats->RxMIMOSignalQuality[i] = 4204 evm & 0xff; 4205 } 4206 4207 /* record rx statistics for debug */ 4208 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg; 4209 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *) 4210 &rxsc_sgien_exflg; 4211 if (pdrvinfo->BW) /* 40M channel */ 4212 priv->stats.received_bwtype[1 + prxsc->rxsc]++; 4213 else /* 20M channel */ 4214 priv->stats.received_bwtype[0]++; 4215 } 4216 4217 /* UI BSS List signal strength(in percentage), make it good looking, 4218 * from 0~100. It is assigned to the BSS List in 4219 * GetValueFromBeaconOrProbeRsp(). 4220 */ 4221 if (is_cck_rate) { 4222 pstats->SignalStrength = 4223 precord_stats->SignalStrength = 4224 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all)); 4225 } else { 4226 /* We can judge RX path number now. */ 4227 if (rf_rx_num != 0) { 4228 pstats->SignalStrength = 4229 precord_stats->SignalStrength = 4230 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num))); 4231 } 4232 } 4233 } /* QueryRxPhyStatus8190Pci */ 4234 4235 static void rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats *psrc_stats, 4236 struct ieee80211_rx_stats *ptarget_stats) 4237 { 4238 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU; 4239 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU; 4240 ptarget_stats->Seq_Num = psrc_stats->Seq_Num; 4241 } 4242 4243 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb, 4244 struct ieee80211_rx_stats *pstats, 4245 struct rx_drvinfo_819x_usb *pdrvinfo) 4246 { 4247 /* TODO: We must only check packet for current MAC address. 4248 * Not finish 4249 */ 4250 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4251 struct net_device *dev = info->dev; 4252 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4253 bool bpacket_match_bssid, bpacket_toself; 4254 bool bPacketBeacon = false, bToSelfBA = false; 4255 static struct ieee80211_rx_stats previous_stats; 4256 struct rtl_80211_hdr_3addr *hdr; 4257 u16 fc, type; 4258 4259 /* Get Signal Quality for only RX data queue (but not command queue) */ 4260 4261 u8 *tmp_buf; 4262 u8 *praddr; 4263 4264 /* Get MAC frame start address. */ 4265 tmp_buf = (u8 *)skb->data; 4266 4267 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf; 4268 fc = le16_to_cpu(hdr->frame_ctl); 4269 type = WLAN_FC_GET_TYPE(fc); 4270 praddr = hdr->addr1; 4271 4272 /* Check if the received packet is acceptable. */ 4273 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) && 4274 (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3)) 4275 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV); 4276 bpacket_toself = bpacket_match_bssid & 4277 (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr)); 4278 4279 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON) 4280 bPacketBeacon = true; 4281 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) { 4282 if ((ether_addr_equal(praddr, dev->dev_addr))) 4283 bToSelfBA = true; 4284 } 4285 4286 if (bpacket_match_bssid) 4287 priv->stats.numpacket_matchbssid++; 4288 if (bpacket_toself) 4289 priv->stats.numpacket_toself++; 4290 /* Process PHY information for previous packet (RSSI/PWDB/EVM) 4291 * Because phy information is contained in the last packet of AMPDU 4292 * only, so driver should process phy information of previous packet 4293 */ 4294 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats); 4295 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats, 4296 bpacket_match_bssid, bpacket_toself, 4297 bPacketBeacon, bToSelfBA); 4298 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats); 4299 } 4300 4301 /** 4302 * Function: UpdateReceivedRateHistogramStatistics 4303 * Overview: Record the received data rate 4304 * 4305 * Input: 4306 * struct net_device *dev 4307 * struct ieee80211_rx_stats *stats 4308 * 4309 * Output: 4310 * 4311 * (priv->stats.ReceivedRateHistogram[] is updated) 4312 * Return: 4313 * None 4314 */ 4315 static void 4316 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev, 4317 struct ieee80211_rx_stats *stats) 4318 { 4319 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4320 /* 0: Total, 1:OK, 2:CRC, 3:ICV */ 4321 u32 rcvType = 1; 4322 u32 rateIndex; 4323 /* 1: short preamble/GI, 0: long preamble/GI */ 4324 u32 preamble_guardinterval; 4325 4326 if (stats->bCRC) 4327 rcvType = 2; 4328 else if (stats->bICV) 4329 rcvType = 3; 4330 4331 if (stats->bShortPreamble) 4332 preamble_guardinterval = 1; /* short */ 4333 else 4334 preamble_guardinterval = 0; /* long */ 4335 4336 switch (stats->rate) { 4337 /* CCK rate */ 4338 case MGN_1M: 4339 rateIndex = 0; 4340 break; 4341 case MGN_2M: 4342 rateIndex = 1; 4343 break; 4344 case MGN_5_5M: 4345 rateIndex = 2; 4346 break; 4347 case MGN_11M: 4348 rateIndex = 3; 4349 break; 4350 /* Legacy OFDM rate */ 4351 case MGN_6M: 4352 rateIndex = 4; 4353 break; 4354 case MGN_9M: 4355 rateIndex = 5; 4356 break; 4357 case MGN_12M: 4358 rateIndex = 6; 4359 break; 4360 case MGN_18M: 4361 rateIndex = 7; 4362 break; 4363 case MGN_24M: 4364 rateIndex = 8; 4365 break; 4366 case MGN_36M: 4367 rateIndex = 9; 4368 break; 4369 case MGN_48M: 4370 rateIndex = 10; 4371 break; 4372 case MGN_54M: 4373 rateIndex = 11; 4374 break; 4375 /* 11n High throughput rate */ 4376 case MGN_MCS0: 4377 rateIndex = 12; 4378 break; 4379 case MGN_MCS1: 4380 rateIndex = 13; 4381 break; 4382 case MGN_MCS2: 4383 rateIndex = 14; 4384 break; 4385 case MGN_MCS3: 4386 rateIndex = 15; 4387 break; 4388 case MGN_MCS4: 4389 rateIndex = 16; 4390 break; 4391 case MGN_MCS5: 4392 rateIndex = 17; 4393 break; 4394 case MGN_MCS6: 4395 rateIndex = 18; 4396 break; 4397 case MGN_MCS7: 4398 rateIndex = 19; 4399 break; 4400 case MGN_MCS8: 4401 rateIndex = 20; 4402 break; 4403 case MGN_MCS9: 4404 rateIndex = 21; 4405 break; 4406 case MGN_MCS10: 4407 rateIndex = 22; 4408 break; 4409 case MGN_MCS11: 4410 rateIndex = 23; 4411 break; 4412 case MGN_MCS12: 4413 rateIndex = 24; 4414 break; 4415 case MGN_MCS13: 4416 rateIndex = 25; 4417 break; 4418 case MGN_MCS14: 4419 rateIndex = 26; 4420 break; 4421 case MGN_MCS15: 4422 rateIndex = 27; 4423 break; 4424 default: 4425 rateIndex = 28; 4426 break; 4427 } 4428 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++; 4429 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */ 4430 priv->stats.received_rate_histogram[rcvType][rateIndex]++; 4431 } 4432 4433 static void query_rxdesc_status(struct sk_buff *skb, 4434 struct ieee80211_rx_stats *stats, 4435 bool bIsRxAggrSubframe) 4436 { 4437 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4438 struct net_device *dev = info->dev; 4439 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4440 struct rx_drvinfo_819x_usb *driver_info = NULL; 4441 4442 /* Get Rx Descriptor Information */ 4443 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; 4444 4445 stats->Length = desc->Length; 4446 stats->RxDrvInfoSize = desc->RxDrvInfoSize; 4447 stats->RxBufShift = 0; 4448 stats->bICV = desc->ICV; 4449 stats->bCRC = desc->CRC32; 4450 stats->bHwError = stats->bCRC | stats->bICV; 4451 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */ 4452 stats->Decrypted = !desc->SWDec; 4453 4454 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) && 4455 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP)) 4456 stats->bHwError = false; 4457 else 4458 stats->bHwError = stats->bCRC | stats->bICV; 4459 4460 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE) 4461 stats->bHwError |= 1; 4462 /* Get Driver Info */ 4463 /* TODO: Need to verify it on FGPA platform 4464 * Driver info are written to the RxBuffer following rx desc 4465 */ 4466 if (stats->RxDrvInfoSize != 0) { 4467 driver_info = (struct rx_drvinfo_819x_usb *)(skb->data 4468 + sizeof(struct rx_desc_819x_usb) 4469 + stats->RxBufShift 4470 ); 4471 /* unit: 0.5M */ 4472 /* TODO */ 4473 if (!stats->bHwError) { 4474 u8 ret_rate; 4475 4476 ret_rate = HwRateToMRate90(driver_info->RxHT, 4477 driver_info->RxRate); 4478 if (ret_rate == 0xff) { 4479 /* Abnormal Case: Receive CRC OK packet with Rx 4480 * descriptor indicating non supported rate. 4481 * Special Error Handling here 4482 */ 4483 4484 stats->bHwError = 1; 4485 /* Set 1M rate by default */ 4486 stats->rate = MGN_1M; 4487 } else { 4488 stats->rate = ret_rate; 4489 } 4490 } else { 4491 stats->rate = 0x02; 4492 } 4493 4494 stats->bShortPreamble = driver_info->SPLCP; 4495 4496 UpdateReceivedRateHistogramStatistics8190(dev, stats); 4497 4498 stats->bIsAMPDU = (driver_info->PartAggr == 1); 4499 stats->bFirstMPDU = (driver_info->PartAggr == 1) && 4500 (driver_info->FirstAGGR == 1); 4501 stats->TimeStampLow = driver_info->TSFL; 4502 4503 UpdateRxPktTimeStamp8190(dev, stats); 4504 4505 /* Rx A-MPDU */ 4506 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1) 4507 RT_TRACE(COMP_RXDESC, 4508 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n", 4509 driver_info->FirstAGGR, driver_info->PartAggr); 4510 } 4511 4512 skb_pull(skb, sizeof(struct rx_desc_819x_usb)); 4513 /* Get Total offset of MPDU Frame Body */ 4514 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) { 4515 stats->bShift = 1; 4516 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize); 4517 } 4518 4519 if (driver_info) { 4520 stats->RxIs40MHzPacket = driver_info->BW; 4521 TranslateRxSignalStuff819xUsb(skb, stats, driver_info); 4522 } 4523 } 4524 4525 static void rtl8192_rx_nomal(struct sk_buff *skb) 4526 { 4527 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4528 struct net_device *dev = info->dev; 4529 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4530 struct ieee80211_rx_stats stats = { 4531 .signal = 0, 4532 .noise = 0x100 - 98, 4533 .rate = 0, 4534 .freq = IEEE80211_24GHZ_BAND, 4535 }; 4536 u32 rx_pkt_len = 0; 4537 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL; 4538 bool unicast_packet = false; 4539 4540 /* 20 is for ps-poll */ 4541 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4542 /* first packet should not contain Rx aggregation header */ 4543 query_rxdesc_status(skb, &stats, false); 4544 /* TODO */ 4545 /* hardware related info */ 4546 /* Process the MPDU received */ 4547 skb_trim(skb, skb->len - 4/*sCrcLng*/); 4548 4549 rx_pkt_len = skb->len; 4550 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data; 4551 unicast_packet = false; 4552 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) { 4553 /* TODO */ 4554 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) { 4555 /* TODO */ 4556 } else { 4557 /* unicast packet */ 4558 unicast_packet = true; 4559 } 4560 4561 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) { 4562 dev_kfree_skb_any(skb); 4563 } else { 4564 priv->stats.rxoktotal++; 4565 if (unicast_packet) 4566 priv->stats.rxbytesunicast += rx_pkt_len; 4567 } 4568 } else { 4569 priv->stats.rxurberr++; 4570 netdev_dbg(dev, "actual_length: %d\n", skb->len); 4571 dev_kfree_skb_any(skb); 4572 } 4573 } 4574 4575 static void rtl819xusb_process_received_packet(struct net_device *dev, 4576 struct ieee80211_rx_stats *pstats) 4577 { 4578 struct r8192_priv *priv = ieee80211_priv(dev); 4579 4580 /* Get shifted bytes of Starting address of 802.11 header. */ 4581 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats); 4582 #ifdef TODO /* about HCT */ 4583 if (!Adapter->bInHctTest) 4584 CountRxErrStatistics(Adapter, pRfd); 4585 #endif 4586 #ifdef ENABLE_PS /* for adding ps function in future */ 4587 RT_RF_POWER_STATE rtState; 4588 /* When RF is off, we should not count the packet for hw/sw synchronize 4589 * reason, ie. there may be a duration while sw switch is changed and 4590 * hw switch is being changed. 4591 */ 4592 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE, 4593 (u8 *)(&rtState)); 4594 if (rtState == eRfOff) 4595 return; 4596 #endif 4597 priv->stats.rxframgment++; 4598 4599 #ifdef TODO 4600 RmMonitorSignalStrength(Adapter, pRfd); 4601 #endif 4602 /* We have to release RFD and return if rx pkt is cmd pkt. */ 4603 if (rtl819xusb_rx_command_packet(dev, pstats)) 4604 return; 4605 4606 #ifdef SW_CRC_CHECK 4607 SwCrcCheck(); 4608 #endif 4609 } 4610 4611 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb, 4612 struct ieee80211_rx_stats *stats) 4613 { 4614 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; 4615 4616 /* Get Rx Descriptor Information */ 4617 stats->virtual_address = (u8 *)skb->data; 4618 stats->Length = desc->Length; 4619 stats->RxDrvInfoSize = 0; 4620 stats->RxBufShift = 0; 4621 stats->packetlength = stats->Length - scrclng; 4622 stats->fraglength = stats->packetlength; 4623 stats->fragoffset = 0; 4624 stats->ntotalfrag = 1; 4625 } 4626 4627 static void rtl8192_rx_cmd(struct sk_buff *skb) 4628 { 4629 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; 4630 struct net_device *dev = info->dev; 4631 /* TODO */ 4632 struct ieee80211_rx_stats stats = { 4633 .signal = 0, 4634 .noise = 0x100 - 98, 4635 .rate = 0, 4636 .freq = IEEE80211_24GHZ_BAND, 4637 }; 4638 4639 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { 4640 query_rx_cmdpkt_desc_status(skb, &stats); 4641 /* prfd->queue_id = 1; */ 4642 4643 /* Process the command packet received. */ 4644 4645 rtl819xusb_process_received_packet(dev, &stats); 4646 4647 dev_kfree_skb_any(skb); 4648 } 4649 } 4650 4651 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t) 4652 { 4653 struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet); 4654 struct sk_buff *skb; 4655 struct rtl8192_rx_info *info; 4656 4657 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) { 4658 info = (struct rtl8192_rx_info *)skb->cb; 4659 switch (info->out_pipe) { 4660 /* Nomal packet pipe */ 4661 case 3: 4662 priv->IrpPendingCount--; 4663 rtl8192_rx_nomal(skb); 4664 break; 4665 4666 /* Command packet pipe */ 4667 case 9: 4668 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n", 4669 info->out_pipe); 4670 4671 rtl8192_rx_cmd(skb); 4672 break; 4673 4674 default: /* should never get here! */ 4675 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n", 4676 info->out_pipe); 4677 dev_kfree_skb(skb); 4678 break; 4679 } 4680 } 4681 } 4682 4683 static const struct net_device_ops rtl8192_netdev_ops = { 4684 .ndo_open = rtl8192_open, 4685 .ndo_stop = rtl8192_close, 4686 .ndo_get_stats = rtl8192_stats, 4687 .ndo_tx_timeout = tx_timeout, 4688 .ndo_do_ioctl = rtl8192_ioctl, 4689 .ndo_set_rx_mode = r8192_set_multicast, 4690 .ndo_set_mac_address = r8192_set_mac_adr, 4691 .ndo_validate_addr = eth_validate_addr, 4692 .ndo_start_xmit = ieee80211_xmit, 4693 }; 4694 4695 /**************************************************************************** 4696 * ---------------------------- USB_STUFF--------------------------- 4697 *****************************************************************************/ 4698 4699 static int rtl8192_usb_probe(struct usb_interface *intf, 4700 const struct usb_device_id *id) 4701 { 4702 struct net_device *dev = NULL; 4703 struct r8192_priv *priv = NULL; 4704 struct usb_device *udev = interface_to_usbdev(intf); 4705 int ret; 4706 4707 RT_TRACE(COMP_INIT, "Oops: i'm coming\n"); 4708 4709 dev = alloc_ieee80211(sizeof(struct r8192_priv)); 4710 if (!dev) 4711 return -ENOMEM; 4712 4713 usb_set_intfdata(intf, dev); 4714 SET_NETDEV_DEV(dev, &intf->dev); 4715 priv = ieee80211_priv(dev); 4716 priv->ieee80211 = netdev_priv(dev); 4717 priv->udev = udev; 4718 4719 dev->netdev_ops = &rtl8192_netdev_ops; 4720 4721 dev->wireless_handlers = &r8192_wx_handlers_def; 4722 4723 dev->type = ARPHRD_ETHER; 4724 4725 dev->watchdog_timeo = HZ * 3; 4726 4727 if (dev_alloc_name(dev, ifname) < 0) { 4728 RT_TRACE(COMP_INIT, 4729 "Oops: devname already taken! Trying wlan%%d...\n"); 4730 ifname = "wlan%d"; 4731 dev_alloc_name(dev, ifname); 4732 } 4733 4734 RT_TRACE(COMP_INIT, "Driver probe completed1\n"); 4735 if (rtl8192_init(dev) != 0) { 4736 RT_TRACE(COMP_ERR, "Initialization failed"); 4737 ret = -ENODEV; 4738 goto fail; 4739 } 4740 netif_carrier_off(dev); 4741 netif_stop_queue(dev); 4742 4743 ret = register_netdev(dev); 4744 if (ret) 4745 goto fail2; 4746 4747 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name); 4748 rtl8192_proc_init_one(dev); 4749 4750 RT_TRACE(COMP_INIT, "Driver probe completed\n"); 4751 return 0; 4752 4753 fail2: 4754 rtl8192_down(dev); 4755 fail: 4756 kfree(priv->pFirmware); 4757 priv->pFirmware = NULL; 4758 rtl8192_usb_deleteendpoints(dev); 4759 msleep(10); 4760 free_ieee80211(dev); 4761 4762 RT_TRACE(COMP_ERR, "wlan driver load failed\n"); 4763 return ret; 4764 } 4765 4766 /* detach all the work and timer structure declared or inititialize 4767 * in r8192U_init function. 4768 */ 4769 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv) 4770 { 4771 cancel_work_sync(&priv->reset_wq); 4772 cancel_delayed_work(&priv->watch_dog_wq); 4773 cancel_delayed_work(&priv->update_beacon_wq); 4774 cancel_work_sync(&priv->qos_activate); 4775 } 4776 4777 static void rtl8192_usb_disconnect(struct usb_interface *intf) 4778 { 4779 struct net_device *dev = usb_get_intfdata(intf); 4780 struct r8192_priv *priv = ieee80211_priv(dev); 4781 4782 unregister_netdev(dev); 4783 4784 RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n"); 4785 rtl8192_proc_remove_one(dev); 4786 4787 rtl8192_down(dev); 4788 kfree(priv->pFirmware); 4789 priv->pFirmware = NULL; 4790 rtl8192_usb_deleteendpoints(dev); 4791 usleep_range(10000, 11000); 4792 free_ieee80211(dev); 4793 4794 RT_TRACE(COMP_DOWN, "wlan driver removed\n"); 4795 } 4796 4797 static int __init rtl8192_usb_module_init(void) 4798 { 4799 int ret; 4800 4801 #ifdef CONFIG_IEEE80211_DEBUG 4802 ret = ieee80211_debug_init(); 4803 if (ret) { 4804 pr_err("ieee80211_debug_init() failed %d\n", ret); 4805 return ret; 4806 } 4807 #endif 4808 ret = ieee80211_crypto_init(); 4809 if (ret) { 4810 pr_err("ieee80211_crypto_init() failed %d\n", ret); 4811 return ret; 4812 } 4813 4814 ret = ieee80211_crypto_tkip_init(); 4815 if (ret) { 4816 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret); 4817 return ret; 4818 } 4819 4820 ret = ieee80211_crypto_ccmp_init(); 4821 if (ret) { 4822 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret); 4823 return ret; 4824 } 4825 4826 ret = ieee80211_crypto_wep_init(); 4827 if (ret) { 4828 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret); 4829 return ret; 4830 } 4831 4832 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n"); 4833 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n"); 4834 RT_TRACE(COMP_INIT, "Initializing module"); 4835 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT); 4836 rtl8192_proc_module_init(); 4837 return usb_register(&rtl8192_usb_driver); 4838 } 4839 4840 static void __exit rtl8192_usb_module_exit(void) 4841 { 4842 usb_deregister(&rtl8192_usb_driver); 4843 4844 RT_TRACE(COMP_DOWN, "Exiting"); 4845 } 4846 4847 void EnableHWSecurityConfig8192(struct net_device *dev) 4848 { 4849 u8 SECR_value = 0x0; 4850 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); 4851 struct ieee80211_device *ieee = priv->ieee80211; 4852 4853 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable; 4854 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) { 4855 SECR_value |= SCR_RxUseDK; 4856 SECR_value |= SCR_TxUseDK; 4857 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) { 4858 SECR_value |= SCR_RxUseDK; 4859 SECR_value |= SCR_TxUseDK; 4860 } 4861 /* add HWSec active enable here. 4862 * default using hwsec. when peer AP is in N mode only and 4863 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates 4864 * it), use software security. when peer AP is in b,g,n mode mixed and 4865 * pairwise_key_type is none_aes, use g mode hw security. 4866 */ 4867 4868 ieee->hwsec_active = 1; 4869 4870 /* add hwsec_support flag to totol control hw_sec on/off */ 4871 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) { 4872 ieee->hwsec_active = 0; 4873 SECR_value &= ~SCR_RxDecEnable; 4874 } 4875 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n", 4876 __func__, ieee->hwsec_active, ieee->pairwise_key_type, 4877 SECR_value); 4878 write_nic_byte(dev, SECR, SECR_value); 4879 } 4880 4881 void setKey(struct net_device *dev, u8 entryno, u8 keyindex, u16 keytype, 4882 u8 *macaddr, u8 defaultkey, u32 *keycontent) 4883 { 4884 u32 target_command = 0; 4885 u32 target_content = 0; 4886 u16 us_config = 0; 4887 u8 i; 4888 4889 if (entryno >= TOTAL_CAM_ENTRY) 4890 RT_TRACE(COMP_ERR, "cam entry exceeds in %s\n", __func__); 4891 4892 RT_TRACE(COMP_SEC, 4893 "====>to %s, dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n", 4894 __func__, dev, entryno, keyindex, keytype, macaddr); 4895 4896 if (defaultkey) 4897 us_config |= BIT(15) | (keytype << 2); 4898 else 4899 us_config |= BIT(15) | (keytype << 2) | keyindex; 4900 4901 for (i = 0; i < CAM_CONTENT_COUNT; i++) { 4902 target_command = i + CAM_CONTENT_COUNT * entryno; 4903 target_command |= BIT(31) | BIT(16); 4904 4905 if (i == 0) { /* MAC|Config */ 4906 target_content = (u32)(*(macaddr + 0)) << 16 | 4907 (u32)(*(macaddr + 1)) << 24 | 4908 (u32)us_config; 4909 4910 write_nic_dword(dev, WCAMI, target_content); 4911 write_nic_dword(dev, RWCAM, target_command); 4912 } else if (i == 1) { /* MAC */ 4913 target_content = (u32)(*(macaddr + 2)) | 4914 (u32)(*(macaddr + 3)) << 8 | 4915 (u32)(*(macaddr + 4)) << 16 | 4916 (u32)(*(macaddr + 5)) << 24; 4917 write_nic_dword(dev, WCAMI, target_content); 4918 write_nic_dword(dev, RWCAM, target_command); 4919 } else { 4920 /* Key Material */ 4921 if (keycontent) { 4922 write_nic_dword(dev, WCAMI, 4923 *(keycontent + i - 2)); 4924 write_nic_dword(dev, RWCAM, target_command); 4925 } 4926 } 4927 } 4928 } 4929 4930 /*************************************************************************** 4931 * ------------------- module init / exit stubs ---------------- 4932 ****************************************************************************/ 4933 module_init(rtl8192_usb_module_init); 4934 module_exit(rtl8192_usb_module_exit); 4935