linux/drivers/staging/rtl8192u/r8192U_core.c
<<
>>
Prefs
   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
  14double __floatsidf(int i)
  15{
  16        return i;
  17}
  18
  19unsigned int __fixunsdfsi(double d)
  20{
  21        return d;
  22}
  23
  24double __adddf3(double a, double b)
  25{
  26        return a + b;
  27}
  28
  29double __addsf3(float a, float b)
  30{
  31        return a + b;
  32}
  33
  34double __subdf3(double a, double b)
  35{
  36        return a - b;
  37}
  38
  39double __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. */
  65u32 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
  72static 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
  92MODULE_LICENSE("GPL");
  93MODULE_VERSION("V 1.1");
  94MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl);
  95MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards");
  96
  97static char *ifname = "wlan%d";
  98static int hwwep = 1;  /* default use hw. set 0 to use software security */
  99static int channels = 0x3fff;
 100
 101module_param(ifname, charp, 0644);
 102module_param(hwwep, int, 0644);
 103module_param(channels, int, 0644);
 104
 105MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
 106MODULE_PARM_DESC(hwwep, " Try to use hardware security support. ");
 107MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
 108
 109static int rtl8192_usb_probe(struct usb_interface *intf,
 110                             const struct usb_device_id *id);
 111static void rtl8192_usb_disconnect(struct usb_interface *intf);
 112
 113static 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
 122struct CHANNEL_LIST {
 123        u8      Channel[32];
 124        u8      Len;
 125};
 126
 127static 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
 152static 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
 206static 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
 219int 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
 242int 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. */
 267int 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
 293int 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
 319int 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
 345int 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
 370int 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
 395static 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
 419int 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 */
 450inline void force_pci_posting(struct net_device *dev)
 451{
 452}
 453
 454static struct net_device_stats *rtl8192_stats(struct net_device *dev);
 455static void rtl8192_restart(struct work_struct *work);
 456static void watch_dog_timer_callback(struct timer_list *t);
 457
 458/****************************************************************************
 459 *   -----------------------------PROCFS STUFF-------------------------
 460 ****************************************************************************/
 461
 462static struct proc_dir_entry *rtl8192_proc;
 463
 464static 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
 483static 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
 524static 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
 583static 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
 599static 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
 605static 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
 626static 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
 635short 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
 643static 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
 650void 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
 678void 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
 694static void rtl8192_rx_isr(struct urb *urb);
 695
 696static 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
 702void 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
 754void 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
 795void 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 */
 823static 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
 876static 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
 888static void rtl8192_data_hard_stop(struct net_device *dev)
 889{
 890        /* FIXME !! */
 891}
 892
 893static 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 */
 901static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 902                                   int rate)
 903{
 904        struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
 905        unsigned long flags;
 906        struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
 907        u8 queue_index = tcb_desc->queue_index;
 908
 909        /* shall not be referred by command packet */
 910        RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
 911
 912        spin_lock_irqsave(&priv->tx_lock, flags);
 913
 914        *(struct net_device **)(skb->cb) = dev;
 915        tcb_desc->bTxEnableFwCalcDur = 1;
 916        skb_push(skb, priv->ieee80211->tx_headroom);
 917        rtl8192_tx(dev, skb);
 918
 919        spin_unlock_irqrestore(&priv->tx_lock, flags);
 920}
 921
 922/* This is a rough attempt to TX a frame
 923 * This is called by the ieee 80211 stack to TX management frames.
 924 * If the ring is full packet are dropped (for data frame the queue
 925 * is stopped before this can happen).
 926 */
 927static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 928{
 929        struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
 930        int ret;
 931        unsigned long flags;
 932        struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
 933        u8 queue_index = tcb_desc->queue_index;
 934
 935        spin_lock_irqsave(&priv->tx_lock, flags);
 936
 937        memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
 938        if (queue_index == TXCMD_QUEUE) {
 939                skb_push(skb, USB_HWDESC_HEADER_LEN);
 940                rtl819xU_tx_cmd(dev, skb);
 941                ret = 1;
 942        } else {
 943                skb_push(skb, priv->ieee80211->tx_headroom);
 944                ret = rtl8192_tx(dev, skb);
 945        }
 946
 947        spin_unlock_irqrestore(&priv->tx_lock, flags);
 948
 949        return ret;
 950}
 951
 952static void rtl8192_tx_isr(struct urb *tx_urb)
 953{
 954        struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
 955        struct net_device *dev;
 956        struct r8192_priv *priv = NULL;
 957        struct cb_desc *tcb_desc;
 958        u8  queue_index;
 959
 960        if (!skb)
 961                return;
 962
 963        dev = *(struct net_device **)(skb->cb);
 964        tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
 965        queue_index = tcb_desc->queue_index;
 966
 967        priv = ieee80211_priv(dev);
 968
 969        if (tcb_desc->queue_index != TXCMD_QUEUE) {
 970                if (tx_urb->status == 0) {
 971                        netif_trans_update(dev);
 972                        priv->stats.txoktotal++;
 973                        priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
 974                        priv->stats.txbytesunicast +=
 975                                (skb->len - priv->ieee80211->tx_headroom);
 976                } else {
 977                        priv->ieee80211->stats.tx_errors++;
 978                        /* TODO */
 979                }
 980        }
 981
 982        /* free skb and tx_urb */
 983        dev_kfree_skb_any(skb);
 984        usb_free_urb(tx_urb);
 985        atomic_dec(&priv->tx_pending[queue_index]);
 986
 987        /*
 988         * Handle HW Beacon:
 989         * We had transfer our beacon frame to host controller at this moment.
 990         *
 991         *
 992         * Caution:
 993         * Handling the wait queue of command packets.
 994         * For Tx command packets, we must not do TCB fragment because it is
 995         * not handled right now. We must cut the packets to match the size of
 996         * TX_CMD_PKT before we send it.
 997         */
 998
 999        /* Handle MPDU in wait queue. */
1000        if (queue_index != BEACON_QUEUE) {
1001                /* Don't send data frame during scanning.*/
1002                if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
1003                    (!(priv->ieee80211->queue_stop))) {
1004                        skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
1005                        if (skb)
1006                                priv->ieee80211->softmac_hard_start_xmit(skb,
1007                                                                         dev);
1008
1009                        return; /* avoid further processing AMSDU */
1010                }
1011        }
1012}
1013
1014static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
1015{
1016        struct r8192_priv *priv = ieee80211_priv(dev);
1017        struct ieee80211_network *net;
1018        u8 i = 0, basic_rate = 0;
1019
1020        net = &priv->ieee80211->current_network;
1021
1022        for (i = 0; i < net->rates_len; i++) {
1023                basic_rate = net->rates[i] & 0x7f;
1024                switch (basic_rate) {
1025                case MGN_1M:
1026                        *rate_config |= RRSR_1M;
1027                        break;
1028                case MGN_2M:
1029                        *rate_config |= RRSR_2M;
1030                        break;
1031                case MGN_5_5M:
1032                        *rate_config |= RRSR_5_5M;
1033                        break;
1034                case MGN_11M:
1035                        *rate_config |= RRSR_11M;
1036                        break;
1037                case MGN_6M:
1038                        *rate_config |= RRSR_6M;
1039                        break;
1040                case MGN_9M:
1041                        *rate_config |= RRSR_9M;
1042                        break;
1043                case MGN_12M:
1044                        *rate_config |= RRSR_12M;
1045                        break;
1046                case MGN_18M:
1047                        *rate_config |= RRSR_18M;
1048                        break;
1049                case MGN_24M:
1050                        *rate_config |= RRSR_24M;
1051                        break;
1052                case MGN_36M:
1053                        *rate_config |= RRSR_36M;
1054                        break;
1055                case MGN_48M:
1056                        *rate_config |= RRSR_48M;
1057                        break;
1058                case MGN_54M:
1059                        *rate_config |= RRSR_54M;
1060                        break;
1061                }
1062        }
1063        for (i = 0; i < net->rates_ex_len; i++) {
1064                basic_rate = net->rates_ex[i] & 0x7f;
1065                switch (basic_rate) {
1066                case MGN_1M:
1067                        *rate_config |= RRSR_1M;
1068                        break;
1069                case MGN_2M:
1070                        *rate_config |= RRSR_2M;
1071                        break;
1072                case MGN_5_5M:
1073                        *rate_config |= RRSR_5_5M;
1074                        break;
1075                case MGN_11M:
1076                        *rate_config |= RRSR_11M;
1077                        break;
1078                case MGN_6M:
1079                        *rate_config |= RRSR_6M;
1080                        break;
1081                case MGN_9M:
1082                        *rate_config |= RRSR_9M;
1083                        break;
1084                case MGN_12M:
1085                        *rate_config |= RRSR_12M;
1086                        break;
1087                case MGN_18M:
1088                        *rate_config |= RRSR_18M;
1089                        break;
1090                case MGN_24M:
1091                        *rate_config |= RRSR_24M;
1092                        break;
1093                case MGN_36M:
1094                        *rate_config |= RRSR_36M;
1095                        break;
1096                case MGN_48M:
1097                        *rate_config |= RRSR_48M;
1098                        break;
1099                case MGN_54M:
1100                        *rate_config |= RRSR_54M;
1101                        break;
1102                }
1103        }
1104}
1105
1106#define SHORT_SLOT_TIME 9
1107#define NON_SHORT_SLOT_TIME 20
1108
1109static void rtl8192_update_cap(struct net_device *dev, u16 cap)
1110{
1111        u32 tmp = 0;
1112        struct r8192_priv *priv = ieee80211_priv(dev);
1113        struct ieee80211_network *net = &priv->ieee80211->current_network;
1114
1115        priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
1116        tmp = priv->basic_rate;
1117        if (priv->short_preamble)
1118                tmp |= BRSR_AckShortPmb;
1119        write_nic_dword(dev, RRSR, tmp);
1120
1121        if (net->mode & (IEEE_G | IEEE_N_24G)) {
1122                u8 slot_time = 0;
1123
1124                if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
1125                    (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
1126                        /* short slot time */
1127                        slot_time = SHORT_SLOT_TIME;
1128                else    /* long slot time */
1129                        slot_time = NON_SHORT_SLOT_TIME;
1130                priv->slot_time = slot_time;
1131                write_nic_byte(dev, SLOT_TIME, slot_time);
1132        }
1133}
1134
1135static void rtl8192_net_update(struct net_device *dev)
1136{
1137        struct r8192_priv *priv = ieee80211_priv(dev);
1138        struct ieee80211_network *net;
1139        u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
1140        u16 rate_config = 0;
1141
1142        net = &priv->ieee80211->current_network;
1143
1144        rtl8192_config_rate(dev, &rate_config);
1145        priv->basic_rate = rate_config & 0x15f;
1146
1147        write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
1148        write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
1149
1150        rtl8192_update_msr(dev);
1151        if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
1152                write_nic_word(dev, ATIMWND, 2);
1153                write_nic_word(dev, BCN_DMATIME, 1023);
1154                write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
1155                write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
1156                write_nic_byte(dev, BCN_ERR_THRESH, 100);
1157                BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
1158                /* TODO: BcnIFS may required to be changed on ASIC */
1159                BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
1160
1161                write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
1162        }
1163}
1164
1165/* temporary hw beacon is not used any more.
1166 * open it when necessary
1167 */
1168void rtl819xusb_beacon_tx(struct net_device *dev, u16  tx_rate)
1169{
1170}
1171
1172short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1173{
1174        struct r8192_priv *priv = ieee80211_priv(dev);
1175        int                     status;
1176        struct urb              *tx_urb;
1177        unsigned int            idx_pipe;
1178        struct tx_desc_cmd_819x_usb *pdesc = (struct tx_desc_cmd_819x_usb *)skb->data;
1179        struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1180        u8 queue_index = tcb_desc->queue_index;
1181
1182        atomic_inc(&priv->tx_pending[queue_index]);
1183        tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1184        if (!tx_urb) {
1185                dev_kfree_skb(skb);
1186                return -ENOMEM;
1187        }
1188
1189        memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
1190        /* Tx descriptor ought to be set according to the skb->cb */
1191        pdesc->FirstSeg = 1;
1192        pdesc->LastSeg = 1;
1193        pdesc->CmdInit = tcb_desc->bCmdOrInit;
1194        pdesc->TxBufferSize = tcb_desc->txbuf_size;
1195        pdesc->OWN = 1;
1196        pdesc->LINIP = tcb_desc->bLastIniPkt;
1197
1198        /*---------------------------------------------------------------------
1199         * Fill up USB_OUT_CONTEXT.
1200         *---------------------------------------------------------------------
1201         */
1202        idx_pipe = 0x04;
1203        usb_fill_bulk_urb(tx_urb, priv->udev,
1204                          usb_sndbulkpipe(priv->udev, idx_pipe),
1205                          skb->data, skb->len, rtl8192_tx_isr, skb);
1206
1207        status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1208
1209        if (!status)
1210                return 0;
1211
1212        DMESGE("Error TX CMD URB, error %d", status);
1213        dev_kfree_skb(skb);
1214        usb_free_urb(tx_urb);
1215        return -1;
1216}
1217
1218/*
1219 * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
1220 * in TxFwInfo data structure
1221 * 2006.10.30 by Emily
1222 *
1223 * \param QUEUEID       Software Queue
1224 */
1225static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
1226{
1227        u8 QueueSelect = 0x0;       /* default set to */
1228
1229        switch (QueueID) {
1230        case BE_QUEUE:
1231                QueueSelect = QSLT_BE;
1232                break;
1233
1234        case BK_QUEUE:
1235                QueueSelect = QSLT_BK;
1236                break;
1237
1238        case VO_QUEUE:
1239                QueueSelect = QSLT_VO;
1240                break;
1241
1242        case VI_QUEUE:
1243                QueueSelect = QSLT_VI;
1244                break;
1245        case MGNT_QUEUE:
1246                QueueSelect = QSLT_MGNT;
1247                break;
1248
1249        case BEACON_QUEUE:
1250                QueueSelect = QSLT_BEACON;
1251                break;
1252
1253                /* TODO: mark other queue selection until we verify it is OK */
1254                /* TODO: Remove Assertions */
1255        case TXCMD_QUEUE:
1256                QueueSelect = QSLT_CMD;
1257                break;
1258        case HIGH_QUEUE:
1259                QueueSelect = QSLT_HIGH;
1260                break;
1261
1262        default:
1263                RT_TRACE(COMP_ERR,
1264                         "TransmitTCB(): Impossible Queue Selection: %d\n",
1265                         QueueID);
1266                break;
1267        }
1268        return QueueSelect;
1269}
1270
1271static u8 MRateToHwRate8190Pci(u8 rate)
1272{
1273        u8  ret = DESC90_RATE1M;
1274
1275        switch (rate) {
1276        case MGN_1M:
1277                ret = DESC90_RATE1M;
1278                break;
1279        case MGN_2M:
1280                ret = DESC90_RATE2M;
1281                break;
1282        case MGN_5_5M:
1283                ret = DESC90_RATE5_5M;
1284                break;
1285        case MGN_11M:
1286                ret = DESC90_RATE11M;
1287                break;
1288        case MGN_6M:
1289                ret = DESC90_RATE6M;
1290                break;
1291        case MGN_9M:
1292                ret = DESC90_RATE9M;
1293                break;
1294        case MGN_12M:
1295                ret = DESC90_RATE12M;
1296                break;
1297        case MGN_18M:
1298                ret = DESC90_RATE18M;
1299                break;
1300        case MGN_24M:
1301                ret = DESC90_RATE24M;
1302                break;
1303        case MGN_36M:
1304                ret = DESC90_RATE36M;
1305                break;
1306        case MGN_48M:
1307                ret = DESC90_RATE48M;
1308                break;
1309        case MGN_54M:
1310                ret = DESC90_RATE54M;
1311                break;
1312
1313        /* HT rate since here */
1314        case MGN_MCS0:
1315                ret = DESC90_RATEMCS0;
1316                break;
1317        case MGN_MCS1:
1318                ret = DESC90_RATEMCS1;
1319                break;
1320        case MGN_MCS2:
1321                ret = DESC90_RATEMCS2;
1322                break;
1323        case MGN_MCS3:
1324                ret = DESC90_RATEMCS3;
1325                break;
1326        case MGN_MCS4:
1327                ret = DESC90_RATEMCS4;
1328                break;
1329        case MGN_MCS5:
1330                ret = DESC90_RATEMCS5;
1331                break;
1332        case MGN_MCS6:
1333                ret = DESC90_RATEMCS6;
1334                break;
1335        case MGN_MCS7:
1336                ret = DESC90_RATEMCS7;
1337                break;
1338        case MGN_MCS8:
1339                ret = DESC90_RATEMCS8;
1340                break;
1341        case MGN_MCS9:
1342                ret = DESC90_RATEMCS9;
1343                break;
1344        case MGN_MCS10:
1345                ret = DESC90_RATEMCS10;
1346                break;
1347        case MGN_MCS11:
1348                ret = DESC90_RATEMCS11;
1349                break;
1350        case MGN_MCS12:
1351                ret = DESC90_RATEMCS12;
1352                break;
1353        case MGN_MCS13:
1354                ret = DESC90_RATEMCS13;
1355                break;
1356        case MGN_MCS14:
1357                ret = DESC90_RATEMCS14;
1358                break;
1359        case MGN_MCS15:
1360                ret = DESC90_RATEMCS15;
1361                break;
1362        case (0x80 | 0x20):
1363                ret = DESC90_RATEMCS32;
1364                break;
1365
1366        default:
1367                break;
1368        }
1369        return ret;
1370}
1371
1372static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc)
1373{
1374        u8   tmp_Short;
1375
1376        tmp_Short = (TxHT == 1) ?
1377                        ((tcb_desc->bUseShortGI) ? 1 : 0) :
1378                        ((tcb_desc->bUseShortPreamble) ? 1 : 0);
1379
1380        if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
1381                tmp_Short = 0;
1382
1383        return tmp_Short;
1384}
1385
1386static void tx_zero_isr(struct urb *tx_urb)
1387{
1388}
1389
1390/*
1391 * The tx procedure is just as following,
1392 * skb->cb will contain all the following information,
1393 * priority, morefrag, rate, &dev.
1394 */
1395short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
1396{
1397        struct r8192_priv *priv = ieee80211_priv(dev);
1398        struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1399        struct tx_desc_819x_usb *tx_desc = (struct tx_desc_819x_usb *)skb->data;
1400        struct tx_fwinfo_819x_usb *tx_fwinfo =
1401                (struct tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
1402        struct usb_device *udev = priv->udev;
1403        int pend;
1404        int status, rt = -1;
1405        struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
1406        unsigned int idx_pipe;
1407
1408        pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
1409        /* we are locked here so the two atomic_read and inc are executed
1410         * without interleaves
1411         * !!! For debug purpose
1412         */
1413        if (pend > MAX_TX_URB) {
1414                netdev_dbg(dev, "To discard skb packet!\n");
1415                dev_kfree_skb_any(skb);
1416                return -1;
1417        }
1418
1419        tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1420        if (!tx_urb) {
1421                dev_kfree_skb_any(skb);
1422                return -ENOMEM;
1423        }
1424
1425        /* Fill Tx firmware info */
1426        memset(tx_fwinfo, 0, sizeof(struct tx_fwinfo_819x_usb));
1427        /* DWORD 0 */
1428        tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
1429        tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
1430        tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
1431        tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
1432                                        tcb_desc);
1433        if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
1434                tx_fwinfo->AllowAggregation = 1;
1435                /* DWORD 1 */
1436                tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
1437                tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
1438        } else {
1439                tx_fwinfo->AllowAggregation = 0;
1440                /* DWORD 1 */
1441                tx_fwinfo->RxMF = 0;
1442                tx_fwinfo->RxAMD = 0;
1443        }
1444
1445        /* Protection mode related */
1446        tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
1447        tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
1448        tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
1449        tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
1450        tx_fwinfo->RtsRate =  MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
1451        tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
1452        tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
1453        tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
1454                              (tcb_desc->bRTSUseShortGI ? 1 : 0);
1455
1456        /* Set Bandwidth and sub-channel settings. */
1457        if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
1458                if (tcb_desc->bPacketBW) {
1459                        tx_fwinfo->TxBandwidth = 1;
1460                        /* use duplicated mode */
1461                        tx_fwinfo->TxSubCarrier = 0;
1462                } else {
1463                        tx_fwinfo->TxBandwidth = 0;
1464                        tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
1465                }
1466        } else {
1467                tx_fwinfo->TxBandwidth = 0;
1468                tx_fwinfo->TxSubCarrier = 0;
1469        }
1470
1471        /* Fill Tx descriptor */
1472        memset(tx_desc, 0, sizeof(struct tx_desc_819x_usb));
1473        /* DWORD 0 */
1474        tx_desc->LINIP = 0;
1475        tx_desc->CmdInit = 1;
1476        tx_desc->Offset =  sizeof(struct tx_fwinfo_819x_usb) + 8;
1477        tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
1478
1479        /*DWORD 1*/
1480        tx_desc->SecCAMID = 0;
1481        tx_desc->RATid = tcb_desc->RATRIndex;
1482        tx_desc->NoEnc = 1;
1483        tx_desc->SecType = 0x0;
1484        if (tcb_desc->bHwSec) {
1485                switch (priv->ieee80211->pairwise_key_type) {
1486                case KEY_TYPE_WEP40:
1487                case KEY_TYPE_WEP104:
1488                        tx_desc->SecType = 0x1;
1489                        tx_desc->NoEnc = 0;
1490                        break;
1491                case KEY_TYPE_TKIP:
1492                        tx_desc->SecType = 0x2;
1493                        tx_desc->NoEnc = 0;
1494                        break;
1495                case KEY_TYPE_CCMP:
1496                        tx_desc->SecType = 0x3;
1497                        tx_desc->NoEnc = 0;
1498                        break;
1499                case KEY_TYPE_NA:
1500                        tx_desc->SecType = 0x0;
1501                        tx_desc->NoEnc = 1;
1502                        break;
1503                }
1504        }
1505
1506        tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
1507        tx_desc->TxFWInfoSize =  sizeof(struct tx_fwinfo_819x_usb);
1508
1509        tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
1510        tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
1511
1512        /* Fill fields that are required to be initialized in
1513         * all of the descriptors
1514         */
1515        /* DWORD 0 */
1516        tx_desc->FirstSeg = 1;
1517        tx_desc->LastSeg = 1;
1518        tx_desc->OWN = 1;
1519
1520        /* DWORD 2 */
1521        tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
1522        idx_pipe = 0x5;
1523
1524        /* To submit bulk urb */
1525        usb_fill_bulk_urb(tx_urb, udev,
1526                          usb_sndbulkpipe(udev, idx_pipe), skb->data,
1527                          skb->len, rtl8192_tx_isr, skb);
1528
1529        status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1530        if (!status) {
1531                /* We need to send 0 byte packet whenever
1532                 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
1533                 * been transmitted. Otherwise, it will be halt to wait for
1534                 * another packet.
1535                 */
1536                bool bSend0Byte = false;
1537                u8 zero = 0;
1538
1539                if (udev->speed == USB_SPEED_HIGH) {
1540                        if (skb->len > 0 && skb->len % 512 == 0)
1541                                bSend0Byte = true;
1542                } else {
1543                        if (skb->len > 0 && skb->len % 64 == 0)
1544                                bSend0Byte = true;
1545                }
1546                if (bSend0Byte) {
1547                        tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
1548                        if (!tx_urb_zero) {
1549                                rt = -ENOMEM;
1550                                goto error;
1551                        }
1552                        usb_fill_bulk_urb(tx_urb_zero, udev,
1553                                          usb_sndbulkpipe(udev, idx_pipe),
1554                                          &zero, 0, tx_zero_isr, dev);
1555                        status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1556                        if (status) {
1557                                RT_TRACE(COMP_ERR,
1558                                         "Error TX URB for zero byte %d, error %d",
1559                                         atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1560                                         status);
1561                                goto error;
1562                        }
1563                }
1564                netif_trans_update(dev);
1565                atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1566                return 0;
1567        }
1568
1569        RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1570                 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1571                 status);
1572
1573error:
1574        dev_kfree_skb_any(skb);
1575        usb_free_urb(tx_urb);
1576        usb_free_urb(tx_urb_zero);
1577        return rt;
1578}
1579
1580static short rtl8192_usb_initendpoints(struct net_device *dev)
1581{
1582        struct r8192_priv *priv = ieee80211_priv(dev);
1583
1584        priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *),
1585                                     GFP_KERNEL);
1586        if (!priv->rx_urb)
1587                return -ENOMEM;
1588
1589#ifndef JACKSON_NEW_RX
1590        for (i = 0; i < (MAX_RX_URB + 1); i++) {
1591                priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1592                if (!priv->rx_urb[i])
1593                        return -ENOMEM;
1594
1595                priv->rx_urb[i]->transfer_buffer =
1596                        kmalloc(RX_URB_SIZE, GFP_KERNEL);
1597                if (!priv->rx_urb[i]->transfer_buffer)
1598                        return -ENOMEM;
1599
1600                priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1601        }
1602#endif
1603
1604#ifdef THOMAS_BEACON
1605        {
1606                long align = 0;
1607                void *oldaddr, *newaddr;
1608
1609                priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1610                if (!priv->rx_urb[16])
1611                        return -ENOMEM;
1612                priv->oldaddr = kmalloc(16, GFP_KERNEL);
1613                if (!priv->oldaddr)
1614                        return -ENOMEM;
1615                oldaddr = priv->oldaddr;
1616                align = ((long)oldaddr) & 3;
1617                if (align) {
1618                        newaddr = oldaddr + 4 - align;
1619                        priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1620                } else {
1621                        newaddr = oldaddr;
1622                        priv->rx_urb[16]->transfer_buffer_length = 16;
1623                }
1624                priv->rx_urb[16]->transfer_buffer = newaddr;
1625        }
1626#endif
1627
1628        memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1629        priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1630                                 GFP_KERNEL);
1631        if (!priv->pp_rxskb) {
1632                kfree(priv->rx_urb);
1633
1634                priv->pp_rxskb = NULL;
1635                priv->rx_urb = NULL;
1636
1637                DMESGE("Endpoint Alloc Failure");
1638                return -ENOMEM;
1639        }
1640
1641        netdev_dbg(dev, "End of initendpoints\n");
1642        return 0;
1643}
1644
1645#ifdef THOMAS_BEACON
1646static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1647{
1648        int i;
1649        struct r8192_priv *priv = ieee80211_priv(dev);
1650
1651        if (priv->rx_urb) {
1652                for (i = 0; i < (MAX_RX_URB + 1); i++) {
1653                        usb_kill_urb(priv->rx_urb[i]);
1654                        usb_free_urb(priv->rx_urb[i]);
1655                }
1656                kfree(priv->rx_urb);
1657                priv->rx_urb = NULL;
1658        }
1659        kfree(priv->oldaddr);
1660        priv->oldaddr = NULL;
1661
1662        kfree(priv->pp_rxskb);
1663        priv->pp_rxskb = NULL;
1664}
1665#else
1666void rtl8192_usb_deleteendpoints(struct net_device *dev)
1667{
1668        int i;
1669        struct r8192_priv *priv = ieee80211_priv(dev);
1670
1671#ifndef JACKSON_NEW_RX
1672
1673        if (priv->rx_urb) {
1674                for (i = 0; i < (MAX_RX_URB + 1); i++) {
1675                        usb_kill_urb(priv->rx_urb[i]);
1676                        kfree(priv->rx_urb[i]->transfer_buffer);
1677                        usb_free_urb(priv->rx_urb[i]);
1678                }
1679                kfree(priv->rx_urb);
1680                priv->rx_urb = NULL;
1681        }
1682#else
1683        kfree(priv->rx_urb);
1684        priv->rx_urb = NULL;
1685        kfree(priv->oldaddr);
1686        priv->oldaddr = NULL;
1687
1688        kfree(priv->pp_rxskb);
1689        priv->pp_rxskb = 0;
1690
1691#endif
1692}
1693#endif
1694
1695static void rtl8192_update_ratr_table(struct net_device *dev);
1696static void rtl8192_link_change(struct net_device *dev)
1697{
1698        struct r8192_priv *priv = ieee80211_priv(dev);
1699        struct ieee80211_device *ieee = priv->ieee80211;
1700
1701        if (ieee->state == IEEE80211_LINKED) {
1702                rtl8192_net_update(dev);
1703                rtl8192_update_ratr_table(dev);
1704                /* Add this as in pure N mode, wep encryption will use software
1705                 * way, but there is no chance to set this as wep will not set
1706                 * group key in wext.
1707                 */
1708                if (ieee->pairwise_key_type == KEY_TYPE_WEP40 ||
1709                    ieee->pairwise_key_type == KEY_TYPE_WEP104)
1710                        EnableHWSecurityConfig8192(dev);
1711        }
1712        /*update timing params*/
1713        if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1714                u32 reg = 0;
1715
1716                read_nic_dword(dev, RCR, &reg);
1717                if (priv->ieee80211->state == IEEE80211_LINKED)
1718                        priv->ReceiveConfig = reg |= RCR_CBSSID;
1719                else
1720                        priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1721                write_nic_dword(dev, RCR, reg);
1722        }
1723}
1724
1725static const struct ieee80211_qos_parameters def_qos_parameters = {
1726        {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1727        {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1728        {2, 2, 2, 2},/* aifs */
1729        {0, 0, 0, 0},/* flags */
1730        {0, 0, 0, 0} /* tx_op_limit */
1731};
1732
1733static void rtl8192_update_beacon(struct work_struct *work)
1734{
1735        struct r8192_priv *priv = container_of(work, struct r8192_priv,
1736                                               update_beacon_wq.work);
1737        struct net_device *dev = priv->ieee80211->dev;
1738        struct ieee80211_device *ieee = priv->ieee80211;
1739        struct ieee80211_network *net = &ieee->current_network;
1740
1741        if (ieee->pHTInfo->bCurrentHTSupport)
1742                HTUpdateSelfAndPeerSetting(ieee, net);
1743        ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1744                net->bssht.bdRT2RTLongSlotTime;
1745        rtl8192_update_cap(dev, net->capability);
1746}
1747
1748/*
1749 * background support to run QoS activate functionality
1750 */
1751static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1752                             EDCAPARA_VI, EDCAPARA_VO};
1753static void rtl8192_qos_activate(struct work_struct *work)
1754{
1755        struct r8192_priv *priv = container_of(work, struct r8192_priv,
1756                                               qos_activate);
1757        struct net_device *dev = priv->ieee80211->dev;
1758        struct ieee80211_qos_parameters *qos_parameters =
1759                &priv->ieee80211->current_network.qos_data.parameters;
1760        u8 mode = priv->ieee80211->current_network.mode;
1761        u32  u1bAIFS;
1762        u32 u4bAcParam;
1763        u32 op_limit;
1764        u32 cw_max;
1765        u32 cw_min;
1766        int i;
1767
1768        mutex_lock(&priv->mutex);
1769        if (priv->ieee80211->state != IEEE80211_LINKED)
1770                goto success;
1771        RT_TRACE(COMP_QOS,
1772                 "qos active process with associate response received\n");
1773        /* It better set slot time at first
1774         *
1775         * For we just support b/g mode at present, let the slot time at
1776         * 9/20 selection
1777         *
1778         * update the ac parameter to related registers
1779         */
1780        for (i = 0; i <  QOS_QUEUE_NUM; i++) {
1781                /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1782                u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1783                u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1784                op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1785                op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1786                cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1787                cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1788                cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1789                cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1790                u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1791                write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1792        }
1793
1794success:
1795        mutex_unlock(&priv->mutex);
1796}
1797
1798static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1799                                             int active_network,
1800                                             struct ieee80211_network *network)
1801{
1802        int ret = 0;
1803        u32 size = sizeof(struct ieee80211_qos_parameters);
1804
1805        if (priv->ieee80211->state != IEEE80211_LINKED)
1806                return ret;
1807
1808        if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1809                return ret;
1810
1811        if (network->flags & NETWORK_HAS_QOS_MASK) {
1812                if (active_network &&
1813                    (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1814                        network->qos_data.active = network->qos_data.supported;
1815
1816                if ((network->qos_data.active == 1) && (active_network == 1) &&
1817                    (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1818                    (network->qos_data.old_param_count !=
1819                     network->qos_data.param_count)) {
1820                        network->qos_data.old_param_count =
1821                                network->qos_data.param_count;
1822                        schedule_work(&priv->qos_activate);
1823                        RT_TRACE(COMP_QOS,
1824                                 "QoS parameters change call qos_activate\n");
1825                }
1826        } else {
1827                memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1828                       &def_qos_parameters, size);
1829
1830                if ((network->qos_data.active == 1) && (active_network == 1)) {
1831                        schedule_work(&priv->qos_activate);
1832                        RT_TRACE(COMP_QOS,
1833                                 "QoS was disabled call qos_activate\n");
1834                }
1835                network->qos_data.active = 0;
1836                network->qos_data.supported = 0;
1837        }
1838
1839        return 0;
1840}
1841
1842/* handle and manage frame from beacon and probe response */
1843static int rtl8192_handle_beacon(struct net_device *dev,
1844                                 struct ieee80211_beacon *beacon,
1845                                 struct ieee80211_network *network)
1846{
1847        struct r8192_priv *priv = ieee80211_priv(dev);
1848
1849        rtl8192_qos_handle_probe_response(priv, 1, network);
1850        schedule_delayed_work(&priv->update_beacon_wq, 0);
1851        return 0;
1852}
1853
1854/*
1855 * handling the beaconing responses. if we get different QoS setting
1856 * off the network from the associated setting, adjust the QoS
1857 * setting
1858 */
1859static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1860                                        struct ieee80211_network *network)
1861{
1862        unsigned long flags;
1863        u32 size = sizeof(struct ieee80211_qos_parameters);
1864        int set_qos_param = 0;
1865
1866        if (!priv || !network)
1867                return 0;
1868
1869        if (priv->ieee80211->state != IEEE80211_LINKED)
1870                return 0;
1871
1872        if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1873                return 0;
1874
1875        spin_lock_irqsave(&priv->ieee80211->lock, flags);
1876        if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
1877                memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1878                       &network->qos_data.parameters,
1879                       sizeof(struct ieee80211_qos_parameters));
1880                priv->ieee80211->current_network.qos_data.active = 1;
1881                set_qos_param = 1;
1882                /* update qos parameter for current network */
1883                priv->ieee80211->current_network.qos_data.old_param_count =
1884                        priv->ieee80211->current_network.qos_data.param_count;
1885                priv->ieee80211->current_network.qos_data.param_count =
1886                        network->qos_data.param_count;
1887        } else {
1888                memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1889                       &def_qos_parameters, size);
1890                priv->ieee80211->current_network.qos_data.active = 0;
1891                priv->ieee80211->current_network.qos_data.supported = 0;
1892                set_qos_param = 1;
1893        }
1894
1895        spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
1896
1897        RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
1898                 network->flags,
1899                 priv->ieee80211->current_network.qos_data.active);
1900        if (set_qos_param == 1)
1901                schedule_work(&priv->qos_activate);
1902
1903        return 0;
1904}
1905
1906static int rtl8192_handle_assoc_response(struct net_device *dev,
1907                                         struct ieee80211_assoc_response_frame *resp,
1908                                         struct ieee80211_network *network)
1909{
1910        struct r8192_priv *priv = ieee80211_priv(dev);
1911
1912        rtl8192_qos_association_resp(priv, network);
1913        return 0;
1914}
1915
1916static void rtl8192_update_ratr_table(struct net_device *dev)
1917{
1918        struct r8192_priv *priv = ieee80211_priv(dev);
1919        struct ieee80211_device *ieee = priv->ieee80211;
1920        u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
1921        u32 ratr_value = 0;
1922        u8 rate_index = 0;
1923
1924        rtl8192_config_rate(dev, (u16 *)(&ratr_value));
1925        ratr_value |= (*(u16 *)(pMcsRate)) << 12;
1926        switch (ieee->mode) {
1927        case IEEE_A:
1928                ratr_value &= 0x00000FF0;
1929                break;
1930        case IEEE_B:
1931                ratr_value &= 0x0000000F;
1932                break;
1933        case IEEE_G:
1934                ratr_value &= 0x00000FF7;
1935                break;
1936        case IEEE_N_24G:
1937        case IEEE_N_5G:
1938                if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) {
1939                        ratr_value &= 0x0007F007;
1940                } else {
1941                        if (priv->rf_type == RF_1T2R)
1942                                ratr_value &= 0x000FF007;
1943                        else
1944                                ratr_value &= 0x0F81F007;
1945                }
1946                break;
1947        default:
1948                break;
1949        }
1950        ratr_value &= 0x0FFFFFFF;
1951        if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
1952                ratr_value |= 0x80000000;
1953        else if (!ieee->pHTInfo->bCurTxBW40MHz &&
1954                 ieee->pHTInfo->bCurShortGI20MHz)
1955                ratr_value |= 0x80000000;
1956        write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
1957        write_nic_byte(dev, UFWP, 1);
1958}
1959
1960static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
1961static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
1962static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
1963{
1964        struct r8192_priv *priv = ieee80211_priv(dev);
1965        struct ieee80211_device *ieee = priv->ieee80211;
1966        struct ieee80211_network *network = &ieee->current_network;
1967        int wpa_ie_len = ieee->wpa_ie_len;
1968        struct ieee80211_crypt_data *crypt;
1969        int encrypt;
1970
1971        crypt = ieee->crypt[ieee->tx_keyidx];
1972        /* we use connecting AP's capability instead of only security config
1973         * on our driver to distinguish whether it should use N mode or G mode
1974         */
1975        encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
1976                  (ieee->host_encrypt && crypt && crypt->ops &&
1977                   (strcmp(crypt->ops->name, "WEP") == 0));
1978
1979        /* simply judge  */
1980        if (encrypt && (wpa_ie_len == 0)) {
1981                /* wep encryption, no N mode setting */
1982                return false;
1983        } else if ((wpa_ie_len != 0)) {
1984                /* parse pairwise key type */
1985                if (((ieee->wpa_ie[0] == 0xdd) && (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) || ((ieee->wpa_ie[0] == 0x30) && (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
1986                        return true;
1987                else
1988                        return false;
1989        } else {
1990                return true;
1991        }
1992
1993        return true;
1994}
1995
1996static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
1997{
1998        struct r8192_priv *priv = ieee80211_priv(dev);
1999
2000        return priv->ieee80211->bHalfWirelessN24GMode;
2001}
2002
2003static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2004{
2005        struct ieee80211_device *ieee = priv->ieee80211;
2006        /* We do not consider set support rate for ABG mode, only
2007         * HT MCS rate is set here.
2008         */
2009        if (ieee->mode == WIRELESS_MODE_N_24G ||
2010            ieee->mode == WIRELESS_MODE_N_5G)
2011                memcpy(ieee->Regdot11HTOperationalRateSet,
2012                       ieee->RegHTSuppRateSet, 16);
2013        else
2014                memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2015}
2016
2017static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2018{
2019        struct r8192_priv *priv = ieee80211_priv(dev);
2020        u8 ret = 0;
2021
2022        switch (priv->rf_chip) {
2023        case RF_8225:
2024        case RF_8256:
2025        case RF_PSEUDO_11N:
2026                ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2027                break;
2028        case RF_8258:
2029                ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2030                break;
2031        default:
2032                ret = WIRELESS_MODE_B;
2033                break;
2034        }
2035        return ret;
2036}
2037
2038static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2039{
2040        struct r8192_priv *priv = ieee80211_priv(dev);
2041        u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2042
2043        if (wireless_mode == WIRELESS_MODE_AUTO ||
2044            (wireless_mode & bSupportMode) == 0) {
2045                if (bSupportMode & WIRELESS_MODE_N_24G) {
2046                        wireless_mode = WIRELESS_MODE_N_24G;
2047                } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2048                        wireless_mode = WIRELESS_MODE_N_5G;
2049                } else if ((bSupportMode & WIRELESS_MODE_A)) {
2050                        wireless_mode = WIRELESS_MODE_A;
2051                } else if ((bSupportMode & WIRELESS_MODE_G)) {
2052                        wireless_mode = WIRELESS_MODE_G;
2053                } else if ((bSupportMode & WIRELESS_MODE_B)) {
2054                        wireless_mode = WIRELESS_MODE_B;
2055                } else {
2056                        RT_TRACE(COMP_ERR,
2057                                 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2058                                 __func__, bSupportMode);
2059                        wireless_mode = WIRELESS_MODE_B;
2060                }
2061        }
2062        priv->ieee80211->mode = wireless_mode;
2063
2064        if (wireless_mode == WIRELESS_MODE_N_24G ||
2065            wireless_mode == WIRELESS_MODE_N_5G)
2066                priv->ieee80211->pHTInfo->bEnableHT = 1;
2067        else
2068                priv->ieee80211->pHTInfo->bEnableHT = 0;
2069        RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2070        rtl8192_refresh_supportrate(priv);
2071}
2072
2073/* init priv variables here. only non_zero value should be initialized here. */
2074static int rtl8192_init_priv_variable(struct net_device *dev)
2075{
2076        struct r8192_priv *priv = ieee80211_priv(dev);
2077        u8 i;
2078
2079        priv->card_8192 = NIC_8192U;
2080        priv->chan = 1; /* set to channel 1 */
2081        priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2082        priv->ieee80211->iw_mode = IW_MODE_INFRA;
2083        priv->ieee80211->ieee_up = 0;
2084        priv->retry_rts = DEFAULT_RETRY_RTS;
2085        priv->retry_data = DEFAULT_RETRY_DATA;
2086        priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2087        priv->ieee80211->rate = 110; /* 11 mbps */
2088        priv->ieee80211->short_slot = 1;
2089        priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2090        priv->CckPwEnl = 6;
2091        /* for silent reset */
2092        priv->IrpPendingCount = 1;
2093        priv->ResetProgress = RESET_TYPE_NORESET;
2094        priv->bForcedSilentReset = false;
2095        priv->bDisableNormalResetCheck = false;
2096        priv->force_reset = false;
2097
2098        /* we don't use FW read/write RF until stable firmware is available. */
2099        priv->ieee80211->FwRWRF = 0;
2100        priv->ieee80211->current_network.beacon_interval =
2101                DEFAULT_BEACONINTERVAL;
2102        priv->ieee80211->softmac_features  = IEEE_SOFTMAC_SCAN |
2103                IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2104                IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2105                IEEE_SOFTMAC_BEACONS;
2106
2107        priv->ieee80211->active_scan = 1;
2108        priv->ieee80211->modulation =
2109                IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2110        priv->ieee80211->host_encrypt = 1;
2111        priv->ieee80211->host_decrypt = 1;
2112        priv->ieee80211->start_send_beacons = NULL;
2113        priv->ieee80211->stop_send_beacons = NULL;
2114        priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2115        priv->ieee80211->set_chan = rtl8192_set_chan;
2116        priv->ieee80211->link_change = rtl8192_link_change;
2117        priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2118        priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2119        priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2120        priv->ieee80211->init_wmmparam_flag = 0;
2121        priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2122        priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2123        priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2124        priv->ieee80211->qos_support = 1;
2125
2126        priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2127        priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2128        priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2129
2130        priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2131        priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2132                GetHalfNmodeSupportByAPs819xUsb;
2133        priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2134
2135        priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2136        priv->card_type = USB;
2137        priv->ShortRetryLimit = 0x30;
2138        priv->LongRetryLimit = 0x30;
2139        priv->EarlyRxThreshold = 7;
2140        priv->enable_gpio0 = 0;
2141        priv->TransmitConfig =
2142                /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2143                (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET)      |
2144                /* Short retry limit */
2145                (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2146                /* Long retry limit */
2147                (priv->LongRetryLimit << TCR_LRL_OFFSET)  |
2148                /* FALSE: HW provides PLCP length and LENGEXT
2149                 * TRUE: SW provides them
2150                 */
2151                (false ? TCR_SAT : 0);
2152        priv->ReceiveConfig     =
2153                /* accept management/data */
2154                RCR_AMF | RCR_ADF |
2155                /* accept control frame for SW AP needs PS-poll */
2156                RCR_ACF |
2157                /* accept BC/MC/UC */
2158                RCR_AB | RCR_AM | RCR_APM |
2159                /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2160                ((u32)7 << RCR_MXDMA_OFFSET) |
2161                /* Rx FIFO Threshold, 7: No Rx threshold. */
2162                (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2163                (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2164
2165        priv->AcmControl = 0;
2166        priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2167        if (!priv->pFirmware)
2168                return -ENOMEM;
2169
2170        /* rx related queue */
2171        skb_queue_head_init(&priv->rx_queue);
2172        skb_queue_head_init(&priv->skb_queue);
2173
2174        /* Tx related queue */
2175        for (i = 0; i < MAX_QUEUE_SIZE; i++)
2176                skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2177        for (i = 0; i < MAX_QUEUE_SIZE; i++)
2178                skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2179        for (i = 0; i < MAX_QUEUE_SIZE; i++)
2180                skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2181        priv->rf_set_chan = rtl8192_phy_SwChnl;
2182
2183        return 0;
2184}
2185
2186/* init lock here */
2187static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2188{
2189        spin_lock_init(&priv->tx_lock);
2190        spin_lock_init(&priv->irq_lock);
2191        mutex_init(&priv->wx_mutex);
2192        mutex_init(&priv->mutex);
2193}
2194
2195static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2196
2197static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t);
2198/* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2199#define DRV_NAME "wlan0"
2200static void rtl8192_init_priv_task(struct net_device *dev)
2201{
2202        struct r8192_priv *priv = ieee80211_priv(dev);
2203
2204        INIT_WORK(&priv->reset_wq, rtl8192_restart);
2205
2206        INIT_DELAYED_WORK(&priv->watch_dog_wq,
2207                          rtl819x_watchdog_wqcallback);
2208        INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2209                          dm_txpower_trackingcallback);
2210        INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2211                          dm_rf_pathcheck_workitemcallback);
2212        INIT_DELAYED_WORK(&priv->update_beacon_wq,
2213                          rtl8192_update_beacon);
2214        INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2215                          InitialGainOperateWorkItemCallBack);
2216        INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2217
2218        tasklet_setup(&priv->irq_rx_tasklet, rtl8192_irq_rx_tasklet);
2219}
2220
2221static void rtl8192_get_eeprom_size(struct net_device *dev)
2222{
2223        u16 curCR = 0;
2224        struct r8192_priv *priv = ieee80211_priv(dev);
2225
2226        RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2227        read_nic_word_E(dev, EPROM_CMD, &curCR);
2228        RT_TRACE(COMP_EPROM,
2229                 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2230        /* whether need I consider BIT(5?) */
2231        priv->epromtype =
2232                (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2233        RT_TRACE(COMP_EPROM,
2234                 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2235}
2236
2237/* used to swap endian. as ntohl & htonl are not necessary
2238 * to swap endian, so use this instead.
2239 */
2240static inline u16 endian_swap(u16 *data)
2241{
2242        u16 tmp = *data;
2243        *data = (tmp >> 8) | (tmp << 8);
2244        return *data;
2245}
2246
2247static int rtl8192_read_eeprom_info(struct net_device *dev)
2248{
2249        u16 wEPROM_ID = 0;
2250        u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2251        u8 bLoad_From_EEPOM = false;
2252        struct r8192_priv *priv = ieee80211_priv(dev);
2253        u16 tmpValue = 0;
2254        int i;
2255        int ret;
2256
2257        RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2258        ret = eprom_read(dev, 0); /* first read EEPROM ID out; */
2259        if (ret < 0)
2260                return ret;
2261        wEPROM_ID = (u16)ret;
2262        RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2263
2264        if (wEPROM_ID != RTL8190_EEPROM_ID)
2265                RT_TRACE(COMP_ERR,
2266                         "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2267                         wEPROM_ID, RTL8190_EEPROM_ID);
2268        else
2269                bLoad_From_EEPOM = true;
2270
2271        if (bLoad_From_EEPOM) {
2272                tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2273                ret = eprom_read(dev, EEPROM_VID >> 1);
2274                if (ret < 0)
2275                        return ret;
2276                tmpValue = (u16)ret;
2277                priv->eeprom_vid = endian_swap(&tmpValue);
2278                ret = eprom_read(dev, EEPROM_PID >> 1);
2279                if (ret < 0)
2280                        return ret;
2281                priv->eeprom_pid = (u16)ret;
2282                ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1);
2283                if (ret < 0)
2284                        return ret;
2285                tmpValue = (u16)ret;
2286                priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2287                priv->btxpowerdata_readfromEEPORM = true;
2288                ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8;
2289                if (ret < 0)
2290                        return ret;
2291                priv->eeprom_CustomerID = (u16)ret;
2292        } else {
2293                priv->eeprom_vid = 0;
2294                priv->eeprom_pid = 0;
2295                priv->card_8192_version = VERSION_819XU_B;
2296                priv->eeprom_ChannelPlan = 0;
2297                priv->eeprom_CustomerID = 0;
2298        }
2299        RT_TRACE(COMP_EPROM,
2300                 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2301                 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2302                 priv->eeprom_ChannelPlan);
2303        /* set channelplan from eeprom */
2304        priv->ChannelPlan = priv->eeprom_ChannelPlan;
2305        if (bLoad_From_EEPOM) {
2306                for (i = 0; i < 6; i += 2) {
2307                        ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2308                        if (ret < 0)
2309                                return ret;
2310                        *(u16 *)(&dev->dev_addr[i]) = (u16)ret;
2311                }
2312        } else {
2313                memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
2314                /* should I set IDR0 here? */
2315        }
2316        RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2317        priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2318        priv->rf_chip = RF_8256;
2319
2320        if (priv->card_8192_version == VERSION_819XU_A) {
2321                /* read Tx power gain offset of legacy OFDM to HT rate */
2322                if (bLoad_From_EEPOM) {
2323                        ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1));
2324                        if (ret < 0)
2325                                return ret;
2326                        priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8;
2327                } else
2328                        priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER;
2329                RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2330                /* read ThermalMeter from EEPROM */
2331                if (bLoad_From_EEPOM) {
2332                        ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1));
2333                        if (ret < 0)
2334                                return ret;
2335                        priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff);
2336                } else
2337                        priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER;
2338                RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2339                /* for tx power track */
2340                priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2341                /* read antenna tx power offset of B/C/D to A from EEPROM */
2342                if (bLoad_From_EEPOM) {
2343                        ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1));
2344                        if (ret < 0)
2345                                return ret;
2346                        priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8;
2347                } else
2348                        priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF;
2349                RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2350                /* Read CrystalCap from EEPROM */
2351                if (bLoad_From_EEPOM) {
2352                        ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1));
2353                        if (ret < 0)
2354                                return ret;
2355                        priv->EEPROMCrystalCap = (u16)ret & 0x0f;
2356                } else
2357                        priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP;
2358                RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2359                /* get per-channel Tx power level */
2360                if (bLoad_From_EEPOM) {
2361                        ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1));
2362                        if (ret < 0)
2363                                return ret;
2364                        priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8;
2365                } else
2366                        priv->EEPROM_Def_Ver = 1;
2367                RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2368                if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2369                        if (bLoad_From_EEPOM) {
2370                                ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1));
2371                                if (ret < 0)
2372                                        return ret;
2373                                priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff00) >> 8;
2374                        } else
2375                                priv->EEPROMTxPowerLevelCCK = 0x10;
2376                        RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2377                        for (i = 0; i < 3; i++) {
2378                                if (bLoad_From_EEPOM) {
2379                                        ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1);
2380                                        if (ret < 0)
2381                                                return ret;
2382                                        if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0)
2383                                                tmpValue = (u16)ret & 0x00ff;
2384                                        else
2385                                                tmpValue = ((u16)ret & 0xff00) >> 8;
2386                                } else {
2387                                        tmpValue = 0x10;
2388                                }
2389                                priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2390                                RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2391                        }
2392                } else if (priv->EEPROM_Def_Ver == 1) {
2393                        if (bLoad_From_EEPOM) {
2394                                ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1);
2395                                if (ret < 0)
2396                                        return ret;
2397                                tmpValue = ((u16)ret & 0xff00) >> 8;
2398                        } else {
2399                                tmpValue = 0x10;
2400                        }
2401                        priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2402
2403                        if (bLoad_From_EEPOM) {
2404                                ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1);
2405                                if (ret < 0)
2406                                        return ret;
2407                                tmpValue = (u16)ret;
2408                        } else
2409                                tmpValue = 0x1010;
2410                        *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2411                        if (bLoad_From_EEPOM)
2412                                tmpValue = eprom_read(dev,
2413                                        EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1);
2414                        else
2415                                tmpValue = 0x1010;
2416                        *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2417                        if (bLoad_From_EEPOM)
2418                                tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1);
2419                        else
2420                                tmpValue = 0x10;
2421                        priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2422                } /* endif EEPROM_Def_Ver == 1 */
2423
2424                /* update HAL variables */
2425                for (i = 0; i < 14; i++) {
2426                        if (i <= 3)
2427                                priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2428                        else if (i >= 4 && i <= 9)
2429                                priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2430                        else
2431                                priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2432                }
2433
2434                for (i = 0; i < 14; i++) {
2435                        if (priv->EEPROM_Def_Ver == 0) {
2436                                if (i <= 3)
2437                                        priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2438                                else if (i >= 4 && i <= 9)
2439                                        priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2440                                else
2441                                        priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2442                        } else if (priv->EEPROM_Def_Ver == 1) {
2443                                if (i <= 3)
2444                                        priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2445                                else if (i >= 4 && i <= 9)
2446                                        priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2447                                else
2448                                        priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2449                        }
2450                }
2451                priv->TxPowerDiff = priv->EEPROMPwDiff;
2452                /* Antenna B gain offset to antenna A, bit0~3 */
2453                priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2454                /* Antenna C gain offset to antenna A, bit4~7 */
2455                priv->AntennaTxPwDiff[1] =
2456                        (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2457                /* CrystalCap, bit12~15 */
2458                priv->CrystalCap = priv->EEPROMCrystalCap;
2459                /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2460                 * 92U does not enable TX power tracking.
2461                 */
2462                priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2463        } /* end if VersionID == VERSION_819XU_A */
2464
2465        /* for dlink led */
2466        switch (priv->eeprom_CustomerID) {
2467        case EEPROM_CID_RUNTOP:
2468                priv->CustomerID = RT_CID_819x_RUNTOP;
2469                break;
2470
2471        case EEPROM_CID_DLINK:
2472                priv->CustomerID = RT_CID_DLINK;
2473                break;
2474
2475        default:
2476                priv->CustomerID = RT_CID_DEFAULT;
2477                break;
2478        }
2479
2480        switch (priv->CustomerID) {
2481        case RT_CID_819x_RUNTOP:
2482                priv->LedStrategy = SW_LED_MODE2;
2483                break;
2484
2485        case RT_CID_DLINK:
2486                priv->LedStrategy = SW_LED_MODE4;
2487                break;
2488
2489        default:
2490                priv->LedStrategy = SW_LED_MODE0;
2491                break;
2492        }
2493
2494        if (priv->rf_type == RF_1T2R)
2495                RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2496        else
2497                RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2498
2499        /* We can only know RF type in the function. So we have to init
2500         * DIG RATR table again.
2501         */
2502        init_rate_adaptive(dev);
2503
2504        RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2505
2506        return 0;
2507}
2508
2509static short rtl8192_get_channel_map(struct net_device *dev)
2510{
2511        struct r8192_priv *priv = ieee80211_priv(dev);
2512
2513        if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2514                netdev_err(dev,
2515                           "rtl8180_init: Error channel plan! Set to default.\n");
2516                priv->ChannelPlan = 0;
2517        }
2518        RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2519
2520        rtl819x_set_channel_map(priv->ChannelPlan, priv);
2521        return 0;
2522}
2523
2524static short rtl8192_init(struct net_device *dev)
2525{
2526        struct r8192_priv *priv = ieee80211_priv(dev);
2527        int err;
2528
2529        memset(&(priv->stats), 0, sizeof(struct Stats));
2530        memset(priv->txqueue_to_outpipemap, 0, 9);
2531#ifdef PIPE12
2532        {
2533                int i = 0;
2534                u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2535
2536                memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2537        }
2538#else
2539        {
2540                u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2541
2542                memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2543        }
2544#endif
2545        err = rtl8192_init_priv_variable(dev);
2546        if (err)
2547                return err;
2548
2549        rtl8192_init_priv_lock(priv);
2550        rtl8192_init_priv_task(dev);
2551        rtl8192_get_eeprom_size(dev);
2552        err = rtl8192_read_eeprom_info(dev);
2553        if (err) {
2554                DMESG("Reading EEPROM info failed");
2555                return err;
2556        }
2557        rtl8192_get_channel_map(dev);
2558        init_hal_dm(dev);
2559        timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0);
2560        if (rtl8192_usb_initendpoints(dev) != 0) {
2561                DMESG("Endopoints initialization failed");
2562                return -ENOMEM;
2563        }
2564
2565        return 0;
2566}
2567
2568/******************************************************************************
2569 *function:  This function actually only set RRSR, RATR and BW_OPMODE registers
2570 *           not to do all the hw config as its name says
2571 *   input:  net_device dev
2572 *  output:  none
2573 *  return:  none
2574 *  notice:  This part need to modified according to the rate set we filtered
2575 * ****************************************************************************/
2576static void rtl8192_hwconfig(struct net_device *dev)
2577{
2578        u32 regRATR = 0, regRRSR = 0;
2579        u8 regBwOpMode = 0, regTmp = 0;
2580        struct r8192_priv *priv = ieee80211_priv(dev);
2581        u32 ratr_value = 0;
2582
2583        /* Set RRSR, RATR, and BW_OPMODE registers */
2584        switch (priv->ieee80211->mode) {
2585        case WIRELESS_MODE_B:
2586                regBwOpMode = BW_OPMODE_20MHZ;
2587                regRATR = RATE_ALL_CCK;
2588                regRRSR = RATE_ALL_CCK;
2589                break;
2590        case WIRELESS_MODE_A:
2591                regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2592                regRATR = RATE_ALL_OFDM_AG;
2593                regRRSR = RATE_ALL_OFDM_AG;
2594                break;
2595        case WIRELESS_MODE_G:
2596                regBwOpMode = BW_OPMODE_20MHZ;
2597                regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2598                regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2599                break;
2600        case WIRELESS_MODE_AUTO:
2601                regBwOpMode = BW_OPMODE_20MHZ;
2602                regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2603                          RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2604                regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2605                break;
2606        case WIRELESS_MODE_N_24G:
2607                /* It support CCK rate by default. CCK rate will be filtered
2608                 * out only when associated AP does not support it.
2609                 */
2610                regBwOpMode = BW_OPMODE_20MHZ;
2611                regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2612                          RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2613                regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2614                break;
2615        case WIRELESS_MODE_N_5G:
2616                regBwOpMode = BW_OPMODE_5G;
2617                regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2618                          RATE_ALL_OFDM_2SS;
2619                regRRSR = RATE_ALL_OFDM_AG;
2620                break;
2621        }
2622
2623        write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2624        ratr_value = regRATR;
2625        if (priv->rf_type == RF_1T2R)
2626                ratr_value &= ~(RATE_ALL_OFDM_2SS);
2627        write_nic_dword(dev, RATR0, ratr_value);
2628        write_nic_byte(dev, UFWP, 1);
2629        read_nic_byte(dev, 0x313, &regTmp);
2630        regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2631        write_nic_dword(dev, RRSR, regRRSR);
2632
2633        /* Set Retry Limit here */
2634        write_nic_word(dev, RETRY_LIMIT,
2635                       priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2636                       priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2637        /* Set Contention Window here */
2638
2639        /* Set Tx AGC */
2640
2641        /* Set Tx Antenna including Feedback control */
2642
2643        /* Set Auto Rate fallback control */
2644}
2645
2646/* InitializeAdapter and PhyCfg */
2647static bool rtl8192_adapter_start(struct net_device *dev)
2648{
2649        struct r8192_priv *priv = ieee80211_priv(dev);
2650        u32 dwRegRead = 0;
2651        bool init_status = true;
2652        u8 SECR_value = 0x0;
2653        u8 tmp;
2654
2655        RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2656        priv->Rf_Mode = RF_OP_By_SW_3wire;
2657        /* for ASIC power on sequence */
2658        write_nic_byte_E(dev, 0x5f, 0x80);
2659        mdelay(50);
2660        write_nic_byte_E(dev, 0x5f, 0xf0);
2661        write_nic_byte_E(dev, 0x5d, 0x00);
2662        write_nic_byte_E(dev, 0x5e, 0x80);
2663        write_nic_byte(dev, 0x17, 0x37);
2664        mdelay(10);
2665        priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2666        /* config CPUReset Register */
2667        /* Firmware Reset or not? */
2668        read_nic_dword(dev, CPU_GEN, &dwRegRead);
2669        if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
2670                dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2671        else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
2672                dwRegRead |= CPU_GEN_FIRMWARE_RESET;
2673        else
2674                RT_TRACE(COMP_ERR,
2675                         "ERROR in %s(): undefined firmware state(%d)\n",
2676                         __func__,   priv->pFirmware->firmware_status);
2677
2678        write_nic_dword(dev, CPU_GEN, dwRegRead);
2679        /* config BB. */
2680        rtl8192_BBConfig(dev);
2681
2682        /* Loopback mode or not */
2683        priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2684
2685        read_nic_dword(dev, CPU_GEN, &dwRegRead);
2686        if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2687                dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2688                            CPU_GEN_NO_LOOPBACK_SET;
2689        else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2690                dwRegRead |= CPU_CCK_LOOPBACK;
2691        else
2692                RT_TRACE(COMP_ERR,
2693                         "Serious error in %s(): wrong loopback mode setting(%d)\n",
2694                         __func__,  priv->LoopbackMode);
2695
2696        write_nic_dword(dev, CPU_GEN, dwRegRead);
2697
2698        /* after reset cpu, we need wait for a seconds to write in register. */
2699        udelay(500);
2700
2701        /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2702        read_nic_byte_E(dev, 0x5f, &tmp);
2703        write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2704
2705        /* Set Hardware */
2706        rtl8192_hwconfig(dev);
2707
2708        /* turn on Tx/Rx */
2709        write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2710
2711        /* set IDR0 here */
2712        write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2713        write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2714
2715        /* set RCR */
2716        write_nic_dword(dev, RCR, priv->ReceiveConfig);
2717
2718        /* Initialize Number of Reserved Pages in Firmware Queue */
2719        write_nic_dword(dev, RQPN1,
2720                NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2721                NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2722                NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2723                NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2724        write_nic_dword(dev, RQPN2,
2725                NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2726                NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2727        write_nic_dword(dev, RQPN3,
2728                APPLIED_RESERVED_QUEUE_IN_FW |
2729                NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2730        write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2731
2732        /* Set AckTimeout */
2733        /* TODO: (it value is only for FPGA version). need to be changed!! */
2734        write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2735
2736        if (priv->ResetProgress == RESET_TYPE_NORESET)
2737                rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2738        if (priv->ResetProgress == RESET_TYPE_NORESET) {
2739                CamResetAllEntry(dev);
2740                SECR_value |= SCR_TxEncEnable;
2741                SECR_value |= SCR_RxDecEnable;
2742                SECR_value |= SCR_NoSKMC;
2743                write_nic_byte(dev, SECR, SECR_value);
2744        }
2745
2746        /* Beacon related */
2747        write_nic_word(dev, ATIMWND, 2);
2748        write_nic_word(dev, BCN_INTERVAL, 100);
2749
2750#define DEFAULT_EDCA 0x005e4332
2751        {
2752                int i;
2753
2754                for (i = 0; i < QOS_QUEUE_NUM; i++)
2755                        write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2756        }
2757
2758        rtl8192_phy_configmac(dev);
2759
2760        if (priv->card_8192_version == VERSION_819XU_A) {
2761                rtl8192_phy_getTxPower(dev);
2762                rtl8192_phy_setTxPower(dev, priv->chan);
2763        }
2764
2765        /* Firmware download */
2766        init_status = init_firmware(dev);
2767        if (!init_status) {
2768                RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2769                         __func__);
2770                return init_status;
2771        }
2772        RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2773
2774        /* config RF. */
2775        if (priv->ResetProgress == RESET_TYPE_NORESET) {
2776                rtl8192_phy_RFConfig(dev);
2777                RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2778        }
2779
2780        if (priv->ieee80211->FwRWRF)
2781                /* We can force firmware to do RF-R/W */
2782                priv->Rf_Mode = RF_OP_By_FW;
2783        else
2784                priv->Rf_Mode = RF_OP_By_SW_3wire;
2785
2786        rtl8192_phy_updateInitGain(dev);
2787        /*--set CCK and OFDM Block "ON"--*/
2788        rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2789        rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2790
2791        if (priv->ResetProgress == RESET_TYPE_NORESET) {
2792                /* if D or C cut */
2793                u8 tmpvalue;
2794
2795                read_nic_byte(dev, 0x301, &tmpvalue);
2796                if (tmpvalue == 0x03) {
2797                        priv->bDcut = true;
2798                        RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
2799                } else {
2800                        priv->bDcut = false;
2801                        RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
2802                }
2803                dm_initialize_txpower_tracking(dev);
2804
2805                if (priv->bDcut) {
2806                        u32 i, TempCCk;
2807                        u32 tmpRegA = rtl8192_QueryBBReg(dev,
2808                                                         rOFDM0_XATxIQImbalance,
2809                                                         bMaskDWord);
2810
2811                        for (i = 0; i < TxBBGainTableLength; i++) {
2812                                if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
2813                                        priv->rfa_txpowertrackingindex = (u8)i;
2814                                        priv->rfa_txpowertrackingindex_real =
2815                                                (u8)i;
2816                                        priv->rfa_txpowertracking_default =
2817                                                priv->rfa_txpowertrackingindex;
2818                                        break;
2819                                }
2820                        }
2821
2822                        TempCCk = rtl8192_QueryBBReg(dev,
2823                                                     rCCK0_TxFilter1,
2824                                                     bMaskByte2);
2825
2826                        for (i = 0; i < CCKTxBBGainTableLength; i++) {
2827                                if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
2828                                        priv->cck_present_attenuation_20Mdefault = (u8)i;
2829                                        break;
2830                                }
2831                        }
2832                        priv->cck_present_attenuation_40Mdefault = 0;
2833                        priv->cck_present_attenuation_difference = 0;
2834                        priv->cck_present_attenuation =
2835                                priv->cck_present_attenuation_20Mdefault;
2836                }
2837        }
2838        write_nic_byte(dev, 0x87, 0x0);
2839
2840        return init_status;
2841}
2842
2843/* this configures registers for beacon tx and enables it via
2844 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
2845 * be used to stop beacon transmission
2846 */
2847/***************************************************************************
2848 *   -------------------------------NET STUFF---------------------------
2849 ***************************************************************************/
2850
2851static struct net_device_stats *rtl8192_stats(struct net_device *dev)
2852{
2853        struct r8192_priv *priv = ieee80211_priv(dev);
2854
2855        return &priv->ieee80211->stats;
2856}
2857
2858static bool HalTxCheckStuck819xUsb(struct net_device *dev)
2859{
2860        struct r8192_priv *priv = ieee80211_priv(dev);
2861        u16             RegTxCounter;
2862        bool            bStuck = false;
2863
2864        read_nic_word(dev, 0x128, &RegTxCounter);
2865        RT_TRACE(COMP_RESET,
2866                 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
2867                 RegTxCounter, priv->TxCounter);
2868        if (priv->TxCounter == RegTxCounter)
2869                bStuck = true;
2870
2871        priv->TxCounter = RegTxCounter;
2872
2873        return bStuck;
2874}
2875
2876/*
2877 *      <Assumption: RT_TX_SPINLOCK is acquired.>
2878 *      First added: 2006.11.19 by emily
2879 */
2880static RESET_TYPE TxCheckStuck(struct net_device *dev)
2881{
2882        struct r8192_priv *priv = ieee80211_priv(dev);
2883        u8                      QueueID;
2884        bool                    bCheckFwTxCnt = false;
2885
2886        /* Decide such threshold according to current power save mode */
2887
2888        for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
2889                if (QueueID == TXCMD_QUEUE)
2890                        continue;
2891                if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0)  && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
2892                        continue;
2893
2894                bCheckFwTxCnt = true;
2895        }
2896        if (bCheckFwTxCnt) {
2897                if (HalTxCheckStuck819xUsb(dev)) {
2898                        RT_TRACE(COMP_RESET,
2899                                 "%s: Fw indicates no Tx condition!\n",
2900                                 __func__);
2901                        return RESET_TYPE_SILENT;
2902                }
2903        }
2904        return RESET_TYPE_NORESET;
2905}
2906
2907static bool HalRxCheckStuck819xUsb(struct net_device *dev)
2908{
2909        u16     RegRxCounter;
2910        struct r8192_priv *priv = ieee80211_priv(dev);
2911        bool bStuck = false;
2912        static u8       rx_chk_cnt;
2913
2914        read_nic_word(dev, 0x130, &RegRxCounter);
2915        RT_TRACE(COMP_RESET,
2916                 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
2917                 RegRxCounter, priv->RxCounter);
2918        /* If rssi is small, we should check rx for long time because of bad rx.
2919         * or maybe it will continuous silent reset every 2 seconds.
2920         */
2921        rx_chk_cnt++;
2922        if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) {
2923                rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
2924        } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) &&
2925                   ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) ||
2926                    (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) {
2927                if (rx_chk_cnt < 2)
2928                        return bStuck;
2929
2930                rx_chk_cnt = 0;
2931        } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) ||
2932                    (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) &&
2933                     priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) {
2934                if (rx_chk_cnt < 4)
2935                        return bStuck;
2936
2937                rx_chk_cnt = 0;
2938        } else {
2939                if (rx_chk_cnt < 8)
2940                        return bStuck;
2941
2942                rx_chk_cnt = 0;
2943        }
2944
2945        if (priv->RxCounter == RegRxCounter)
2946                bStuck = true;
2947
2948        priv->RxCounter = RegRxCounter;
2949
2950        return bStuck;
2951}
2952
2953static RESET_TYPE RxCheckStuck(struct net_device *dev)
2954{
2955        struct r8192_priv *priv = ieee80211_priv(dev);
2956        bool        bRxCheck = false;
2957
2958        if (priv->IrpPendingCount > 1)
2959                bRxCheck = true;
2960
2961        if (bRxCheck) {
2962                if (HalRxCheckStuck819xUsb(dev)) {
2963                        RT_TRACE(COMP_RESET, "RxStuck Condition\n");
2964                        return RESET_TYPE_SILENT;
2965                }
2966        }
2967        return RESET_TYPE_NORESET;
2968}
2969
2970/*
2971 * This function is called by Checkforhang to check whether we should
2972 * ask OS to reset driver
2973 *
2974 * Note:NIC with USB interface sholud not call this function because we
2975 * cannot scan descriptor to judge whether there is tx stuck.
2976 * Note: This function may be required to be rewrite for Vista OS.
2977 * <<<Assumption: Tx spinlock has been acquired >>>
2978 *
2979 * 8185 and 8185b does not implement this function.
2980 */
2981static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
2982{
2983        struct r8192_priv *priv = ieee80211_priv(dev);
2984        RESET_TYPE      TxResetType = RESET_TYPE_NORESET;
2985        RESET_TYPE      RxResetType = RESET_TYPE_NORESET;
2986        RT_RF_POWER_STATE       rfState;
2987
2988        rfState = priv->ieee80211->eRFPowerState;
2989
2990        TxResetType = TxCheckStuck(dev);
2991        if (rfState != eRfOff ||
2992            (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
2993                /* If driver is in the status of firmware download failure,
2994                 * driver skips RF initialization and RF is in turned off
2995                 * state. Driver should check whether Rx stuck and do silent
2996                 * reset. And if driver is in firmware download failure status,
2997                 * driver should initialize RF in the following silent reset
2998                 * procedure
2999                 *
3000                 * Driver should not check RX stuck in IBSS mode because it is
3001                 * required to set Check BSSID in order to send beacon,
3002                 * however, if check BSSID is set, STA cannot hear any packet
3003                 * at all.
3004                 */
3005                RxResetType = RxCheckStuck(dev);
3006        }
3007        if (TxResetType == RESET_TYPE_NORMAL ||
3008            RxResetType == RESET_TYPE_NORMAL) {
3009                return RESET_TYPE_NORMAL;
3010        } else if (TxResetType == RESET_TYPE_SILENT ||
3011                   RxResetType == RESET_TYPE_SILENT) {
3012                RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3013                return RESET_TYPE_SILENT;
3014        } else {
3015                return RESET_TYPE_NORESET;
3016        }
3017}
3018
3019static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3020static int _rtl8192_up(struct net_device *dev);
3021static int rtl8192_close(struct net_device *dev);
3022
3023static void CamRestoreAllEntry(struct net_device *dev)
3024{
3025        u8 EntryId = 0;
3026        struct r8192_priv *priv = ieee80211_priv(dev);
3027        u8      *MacAddr = priv->ieee80211->current_network.bssid;
3028
3029        static u8       CAM_CONST_ADDR[4][6] = {
3030                {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3031                {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3032                {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3033                {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3034        static u8       CAM_CONST_BROAD[] = {
3035                0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3036
3037        RT_TRACE(COMP_SEC, "%s:\n", __func__);
3038
3039        if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3040            (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3041                for (EntryId = 0; EntryId < 4; EntryId++) {
3042                        MacAddr = CAM_CONST_ADDR[EntryId];
3043                        setKey(dev, EntryId, EntryId,
3044                               priv->ieee80211->pairwise_key_type,
3045                               MacAddr, 0, NULL);
3046                }
3047
3048        } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
3049                if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3050                        setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3051                               (u8 *)dev->dev_addr, 0, NULL);
3052                else
3053                        setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3054                               MacAddr, 0, NULL);
3055        } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
3056                if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3057                        setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3058                               (u8 *)dev->dev_addr, 0, NULL);
3059                else
3060                        setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3061                               MacAddr, 0, NULL);
3062        }
3063
3064        if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3065                MacAddr = CAM_CONST_BROAD;
3066                for (EntryId = 1; EntryId < 4; EntryId++) {
3067                        setKey(dev, EntryId, EntryId,
3068                               priv->ieee80211->group_key_type,
3069                               MacAddr, 0, NULL);
3070                }
3071                if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3072                        setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3073                               CAM_CONST_ADDR[0], 0, NULL);
3074        } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3075                MacAddr = CAM_CONST_BROAD;
3076                for (EntryId = 1; EntryId < 4; EntryId++) {
3077                        setKey(dev, EntryId, EntryId,
3078                               priv->ieee80211->group_key_type,
3079                               MacAddr, 0, NULL);
3080                }
3081
3082                if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3083                        setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3084                               CAM_CONST_ADDR[0], 0, NULL);
3085        }
3086}
3087
3088/* This function is used to fix Tx/Rx stop bug temporarily.
3089 * This function will do "system reset" to NIC when Tx or Rx is stuck.
3090 * The method checking Tx/Rx stuck of this function is supported by FW,
3091 * which reports Tx and Rx counter to register 0x128 and 0x130.
3092 */
3093static void rtl819x_ifsilentreset(struct net_device *dev)
3094{
3095        struct r8192_priv *priv = ieee80211_priv(dev);
3096        u8      reset_times = 0;
3097        int reset_status = 0;
3098        struct ieee80211_device *ieee = priv->ieee80211;
3099
3100        /* If we need to check CCK stop, please uncomment this line. */
3101        /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
3102
3103        if (priv->ResetProgress == RESET_TYPE_NORESET) {
3104RESET_START:
3105
3106                RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
3107
3108                /* Set the variable for reset. */
3109                priv->ResetProgress = RESET_TYPE_SILENT;
3110                mutex_lock(&priv->wx_mutex);
3111                if (priv->up == 0) {
3112                        RT_TRACE(COMP_ERR,
3113                                 "%s():the driver is not up! return\n",
3114                                 __func__);
3115                        mutex_unlock(&priv->wx_mutex);
3116                        return;
3117                }
3118                priv->up = 0;
3119                RT_TRACE(COMP_RESET,
3120                         "%s():======>start to down the driver\n",
3121                         __func__);
3122
3123                rtl8192_rtx_disable(dev);
3124                rtl8192_cancel_deferred_work(priv);
3125                deinit_hal_dm(dev);
3126                del_timer_sync(&priv->watch_dog_timer);
3127
3128                ieee->sync_scan_hurryup = 1;
3129                if (ieee->state == IEEE80211_LINKED) {
3130                        mutex_lock(&ieee->wx_mutex);
3131                        netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
3132                        ieee80211_stop_send_beacons(priv->ieee80211);
3133                        del_timer_sync(&ieee->associate_timer);
3134                        cancel_delayed_work(&ieee->associate_retry_wq);
3135                        ieee80211_stop_scan(ieee);
3136                        netif_carrier_off(dev);
3137                        mutex_unlock(&ieee->wx_mutex);
3138                } else {
3139                        netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3140                        ieee80211_softmac_stop_protocol(priv->ieee80211);
3141                }
3142                mutex_unlock(&priv->wx_mutex);
3143                RT_TRACE(COMP_RESET,
3144                         "%s():<==========down process is finished\n",
3145                         __func__);
3146                RT_TRACE(COMP_RESET,
3147                         "%s():===========>start up the driver\n",
3148                         __func__);
3149                reset_status = _rtl8192_up(dev);
3150
3151                RT_TRACE(COMP_RESET,
3152                         "%s():<===========up process is finished\n",
3153                         __func__);
3154                if (reset_status == -EAGAIN) {
3155                        if (reset_times < 3) {
3156                                reset_times++;
3157                                goto RESET_START;
3158                        } else {
3159                                RT_TRACE(COMP_ERR,
3160                                         " ERR!!! %s():  Reset Failed!!\n",
3161                                         __func__);
3162                        }
3163                }
3164                ieee->is_silent_reset = 1;
3165                EnableHWSecurityConfig8192(dev);
3166                if (ieee->state == IEEE80211_LINKED &&
3167                    ieee->iw_mode == IW_MODE_INFRA) {
3168                        ieee->set_chan(ieee->dev,
3169                                       ieee->current_network.channel);
3170
3171                        queue_work(ieee->wq, &ieee->associate_complete_wq);
3172
3173                } else if (ieee->state == IEEE80211_LINKED &&
3174                           ieee->iw_mode == IW_MODE_ADHOC) {
3175                        ieee->set_chan(ieee->dev,
3176                                       ieee->current_network.channel);
3177                        ieee->link_change(ieee->dev);
3178
3179                        ieee80211_start_send_beacons(ieee);
3180
3181                        if (ieee->data_hard_resume)
3182                                ieee->data_hard_resume(ieee->dev);
3183                        netif_carrier_on(ieee->dev);
3184                }
3185
3186                CamRestoreAllEntry(dev);
3187
3188                priv->ResetProgress = RESET_TYPE_NORESET;
3189                priv->reset_count++;
3190
3191                priv->bForcedSilentReset = false;
3192                priv->bResetInProgress = false;
3193
3194                /* For test --> force write UFWP. */
3195                write_nic_byte(dev, UFWP, 1);
3196                RT_TRACE(COMP_RESET,
3197                         "Reset finished!! ====>[%d]\n",
3198                         priv->reset_count);
3199        }
3200}
3201
3202static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3203                             u32 *TotalRxDataNum)
3204{
3205        u16                     SlotIndex;
3206        u16                     i;
3207
3208        *TotalRxBcnNum = 0;
3209        *TotalRxDataNum = 0;
3210
3211        SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3212                    (priv->ieee80211->LinkDetectInfo.SlotNum);
3213        priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3214                priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3215        priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3216                priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3217        for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3218                *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3219                *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3220        }
3221}
3222
3223static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3224{
3225        struct delayed_work *dwork = to_delayed_work(work);
3226        struct r8192_priv *priv = container_of(dwork,
3227                                               struct r8192_priv, watch_dog_wq);
3228        struct net_device *dev = priv->ieee80211->dev;
3229        struct ieee80211_device *ieee = priv->ieee80211;
3230        RESET_TYPE      ResetType = RESET_TYPE_NORESET;
3231        static u8       check_reset_cnt;
3232        bool bBusyTraffic = false;
3233        u32     TotalRxBcnNum = 0;
3234        u32     TotalRxDataNum = 0;
3235
3236        if (!priv->up)
3237                return;
3238        hal_dm_watchdog(dev);
3239
3240        /* to get busy traffic condition */
3241        if (ieee->state == IEEE80211_LINKED) {
3242                if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3243                    ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3244                        bBusyTraffic = true;
3245                }
3246                ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3247                ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3248                ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3249        }
3250        /* for AP roaming */
3251        if (priv->ieee80211->state == IEEE80211_LINKED &&
3252            priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3253                rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3254                if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3255#ifdef TODO
3256                        if (rfState == eRfOff)
3257                                RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3258#endif
3259                        netdev_dbg(dev,
3260                                   "===>%s(): AP is power off, connect another one\n",
3261                                   __func__);
3262                        priv->ieee80211->state = IEEE80211_ASSOCIATING;
3263                        notify_wx_assoc_event(priv->ieee80211);
3264                        RemovePeerTS(priv->ieee80211,
3265                                     priv->ieee80211->current_network.bssid);
3266                        priv->ieee80211->link_change(dev);
3267                        queue_work(priv->ieee80211->wq,
3268                                   &priv->ieee80211->associate_procedure_wq);
3269                }
3270        }
3271        priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3272        priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3273        /* check if reset the driver */
3274        if (check_reset_cnt++ >= 3) {
3275                ResetType = rtl819x_ifcheck_resetornot(dev);
3276                check_reset_cnt = 3;
3277        }
3278        /* This is control by OID set in Pomelo */
3279        if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3280            (priv->bForcedSilentReset ||
3281            (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3282                RT_TRACE(COMP_RESET,
3283                         "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3284                         __func__, priv->force_reset, priv->ResetProgress,
3285                         priv->bForcedSilentReset,
3286                         priv->bDisableNormalResetCheck, ResetType);
3287                rtl819x_ifsilentreset(dev);
3288        }
3289        priv->force_reset = false;
3290        priv->bForcedSilentReset = false;
3291        priv->bResetInProgress = false;
3292        RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3293}
3294
3295static void watch_dog_timer_callback(struct timer_list *t)
3296{
3297        struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
3298
3299        schedule_delayed_work(&priv->watch_dog_wq, 0);
3300        mod_timer(&priv->watch_dog_timer,
3301                  jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3302}
3303
3304static int _rtl8192_up(struct net_device *dev)
3305{
3306        struct r8192_priv *priv = ieee80211_priv(dev);
3307        int init_status = 0;
3308
3309        priv->up = 1;
3310        priv->ieee80211->ieee_up = 1;
3311        RT_TRACE(COMP_INIT, "Bringing up iface");
3312        init_status = rtl8192_adapter_start(dev);
3313        if (!init_status) {
3314                RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3315                         __func__);
3316                priv->up = priv->ieee80211->ieee_up = 0;
3317                return -EAGAIN;
3318        }
3319        RT_TRACE(COMP_INIT, "start adapter finished\n");
3320        rtl8192_rx_enable(dev);
3321        if (priv->ieee80211->state != IEEE80211_LINKED)
3322                ieee80211_softmac_start_protocol(priv->ieee80211);
3323        ieee80211_reset_queue(priv->ieee80211);
3324        watch_dog_timer_callback(&priv->watch_dog_timer);
3325        if (!netif_queue_stopped(dev))
3326                netif_start_queue(dev);
3327        else
3328                netif_wake_queue(dev);
3329
3330        return 0;
3331}
3332
3333static int rtl8192_open(struct net_device *dev)
3334{
3335        struct r8192_priv *priv = ieee80211_priv(dev);
3336        int ret;
3337
3338        mutex_lock(&priv->wx_mutex);
3339        ret = rtl8192_up(dev);
3340        mutex_unlock(&priv->wx_mutex);
3341        return ret;
3342}
3343
3344int rtl8192_up(struct net_device *dev)
3345{
3346        struct r8192_priv *priv = ieee80211_priv(dev);
3347
3348        if (priv->up == 1)
3349                return -1;
3350
3351        return _rtl8192_up(dev);
3352}
3353
3354static int rtl8192_close(struct net_device *dev)
3355{
3356        struct r8192_priv *priv = ieee80211_priv(dev);
3357        int ret;
3358
3359        mutex_lock(&priv->wx_mutex);
3360
3361        ret = rtl8192_down(dev);
3362
3363        mutex_unlock(&priv->wx_mutex);
3364
3365        return ret;
3366}
3367
3368int rtl8192_down(struct net_device *dev)
3369{
3370        struct r8192_priv *priv = ieee80211_priv(dev);
3371        int i;
3372
3373        if (priv->up == 0)
3374                return -1;
3375
3376        priv->up = 0;
3377        priv->ieee80211->ieee_up = 0;
3378        RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3379        /* FIXME */
3380        if (!netif_queue_stopped(dev))
3381                netif_stop_queue(dev);
3382
3383        rtl8192_rtx_disable(dev);
3384
3385        /* Tx related queue release */
3386        for (i = 0; i < MAX_QUEUE_SIZE; i++)
3387                skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3388        for (i = 0; i < MAX_QUEUE_SIZE; i++)
3389                skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3390
3391        for (i = 0; i < MAX_QUEUE_SIZE; i++)
3392                skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3393
3394        /* as cancel_delayed_work will del work->timer, so if work is not
3395         * defined as struct delayed_work, it will corrupt
3396         */
3397        rtl8192_cancel_deferred_work(priv);
3398        deinit_hal_dm(dev);
3399        del_timer_sync(&priv->watch_dog_timer);
3400
3401        ieee80211_softmac_stop_protocol(priv->ieee80211);
3402        memset(&priv->ieee80211->current_network, 0,
3403               offsetof(struct ieee80211_network, list));
3404        RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3405
3406        return 0;
3407}
3408
3409void rtl8192_commit(struct net_device *dev)
3410{
3411        struct r8192_priv *priv = ieee80211_priv(dev);
3412
3413        if (priv->up == 0)
3414                return;
3415        priv->up = 0;
3416
3417        rtl8192_cancel_deferred_work(priv);
3418        del_timer_sync(&priv->watch_dog_timer);
3419
3420        ieee80211_softmac_stop_protocol(priv->ieee80211);
3421
3422        rtl8192_rtx_disable(dev);
3423        _rtl8192_up(dev);
3424}
3425
3426static void rtl8192_restart(struct work_struct *work)
3427{
3428        struct r8192_priv *priv = container_of(work, struct r8192_priv,
3429                                               reset_wq);
3430        struct net_device *dev = priv->ieee80211->dev;
3431
3432        mutex_lock(&priv->wx_mutex);
3433
3434        rtl8192_commit(dev);
3435
3436        mutex_unlock(&priv->wx_mutex);
3437}
3438
3439static void r8192_set_multicast(struct net_device *dev)
3440{
3441        struct r8192_priv *priv = ieee80211_priv(dev);
3442        short promisc;
3443
3444        /* FIXME FIXME */
3445
3446        promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3447
3448        if (promisc != priv->promisc)
3449
3450                priv->promisc = promisc;
3451}
3452
3453static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3454{
3455        struct r8192_priv *priv = ieee80211_priv(dev);
3456        struct sockaddr *addr = mac;
3457
3458        mutex_lock(&priv->wx_mutex);
3459
3460        ether_addr_copy(dev->dev_addr, addr->sa_data);
3461
3462        schedule_work(&priv->reset_wq);
3463        mutex_unlock(&priv->wx_mutex);
3464
3465        return 0;
3466}
3467
3468/* based on ipw2200 driver */
3469static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3470{
3471        struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3472        struct iwreq *wrq = (struct iwreq *)rq;
3473        int ret = -1;
3474        struct ieee80211_device *ieee = priv->ieee80211;
3475        u32 key[4];
3476        u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3477        struct iw_point *p = &wrq->u.data;
3478        struct ieee_param *ipw = NULL;
3479
3480        mutex_lock(&priv->wx_mutex);
3481
3482        if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3483                ret = -EINVAL;
3484                goto out;
3485        }
3486
3487        ipw = memdup_user(p->pointer, p->length);
3488        if (IS_ERR(ipw)) {
3489                ret = PTR_ERR(ipw);
3490                goto out;
3491        }
3492
3493        switch (cmd) {
3494        case RTL_IOCTL_WPA_SUPPLICANT:
3495                /* parse here for HW security */
3496                if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3497                        if (ipw->u.crypt.set_tx) {
3498                                if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3499                                        ieee->pairwise_key_type = KEY_TYPE_CCMP;
3500                                } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3501                                        ieee->pairwise_key_type = KEY_TYPE_TKIP;
3502                                } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3503                                        if (ipw->u.crypt.key_len == 13)
3504                                                ieee->pairwise_key_type = KEY_TYPE_WEP104;
3505                                        else if (ipw->u.crypt.key_len == 5)
3506                                                ieee->pairwise_key_type = KEY_TYPE_WEP40;
3507                                } else {
3508                                        ieee->pairwise_key_type = KEY_TYPE_NA;
3509                                }
3510
3511                                if (ieee->pairwise_key_type) {
3512                                        memcpy((u8 *)key, ipw->u.crypt.key, 16);
3513                                        EnableHWSecurityConfig8192(dev);
3514                                        /* We fill both index entry and 4th
3515                                         * entry for pairwise key as in IPW
3516                                         * interface, adhoc will only get here,
3517                                         * so we need index entry for its
3518                                         * default key serching!
3519                                         */
3520                                        setKey(dev, 4, ipw->u.crypt.idx,
3521                                               ieee->pairwise_key_type,
3522                                               (u8 *)ieee->ap_mac_addr,
3523                                               0, key);
3524                                        if (ieee->auth_mode != 2)
3525                                                setKey(dev, ipw->u.crypt.idx,
3526                                                       ipw->u.crypt.idx,
3527                                                       ieee->pairwise_key_type,
3528                                                       (u8 *)ieee->ap_mac_addr,
3529                                                       0, key);
3530                                }
3531                        } else {
3532                                memcpy((u8 *)key, ipw->u.crypt.key, 16);
3533                                if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3534                                        ieee->group_key_type = KEY_TYPE_CCMP;
3535                                } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3536                                        ieee->group_key_type = KEY_TYPE_TKIP;
3537                                } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3538                                        if (ipw->u.crypt.key_len == 13)
3539                                                ieee->group_key_type = KEY_TYPE_WEP104;
3540                                        else if (ipw->u.crypt.key_len == 5)
3541                                                ieee->group_key_type = KEY_TYPE_WEP40;
3542                                } else {
3543                                        ieee->group_key_type = KEY_TYPE_NA;
3544                                }
3545
3546                                if (ieee->group_key_type) {
3547                                        setKey(dev, ipw->u.crypt.idx,
3548                                               /* KeyIndex */
3549                                               ipw->u.crypt.idx,
3550                                               /* KeyType */
3551                                               ieee->group_key_type,
3552                                               /* MacAddr */
3553                                               broadcast_addr,
3554                                               /* DefaultKey */
3555                                               0,
3556                                               /* KeyContent */
3557                                               key);
3558                                }
3559                        }
3560                }
3561                ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3562                                                     &wrq->u.data);
3563                break;
3564
3565        default:
3566                ret = -EOPNOTSUPP;
3567                break;
3568        }
3569        kfree(ipw);
3570        ipw = NULL;
3571out:
3572        mutex_unlock(&priv->wx_mutex);
3573        return ret;
3574}
3575
3576static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3577{
3578        u8  ret_rate = 0xff;
3579
3580        if (!bIsHT) {
3581                switch (rate) {
3582                case DESC90_RATE1M:
3583                        ret_rate = MGN_1M;
3584                        break;
3585                case DESC90_RATE2M:
3586                        ret_rate = MGN_2M;
3587                        break;
3588                case DESC90_RATE5_5M:
3589                        ret_rate = MGN_5_5M;
3590                        break;
3591                case DESC90_RATE11M:
3592                        ret_rate = MGN_11M;
3593                        break;
3594                case DESC90_RATE6M:
3595                        ret_rate = MGN_6M;
3596                        break;
3597                case DESC90_RATE9M:
3598                        ret_rate = MGN_9M;
3599                        break;
3600                case DESC90_RATE12M:
3601                        ret_rate = MGN_12M;
3602                        break;
3603                case DESC90_RATE18M:
3604                        ret_rate = MGN_18M;
3605                        break;
3606                case DESC90_RATE24M:
3607                        ret_rate = MGN_24M;
3608                        break;
3609                case DESC90_RATE36M:
3610                        ret_rate = MGN_36M;
3611                        break;
3612                case DESC90_RATE48M:
3613                        ret_rate = MGN_48M;
3614                        break;
3615                case DESC90_RATE54M:
3616                        ret_rate = MGN_54M;
3617                        break;
3618
3619                default:
3620                        ret_rate = 0xff;
3621                        RT_TRACE(COMP_RECV,
3622                                 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3623                                 __func__, rate, bIsHT);
3624                        break;
3625                }
3626
3627        } else {
3628                switch (rate) {
3629                case DESC90_RATEMCS0:
3630                        ret_rate = MGN_MCS0;
3631                        break;
3632                case DESC90_RATEMCS1:
3633                        ret_rate = MGN_MCS1;
3634                        break;
3635                case DESC90_RATEMCS2:
3636                        ret_rate = MGN_MCS2;
3637                        break;
3638                case DESC90_RATEMCS3:
3639                        ret_rate = MGN_MCS3;
3640                        break;
3641                case DESC90_RATEMCS4:
3642                        ret_rate = MGN_MCS4;
3643                        break;
3644                case DESC90_RATEMCS5:
3645                        ret_rate = MGN_MCS5;
3646                        break;
3647                case DESC90_RATEMCS6:
3648                        ret_rate = MGN_MCS6;
3649                        break;
3650                case DESC90_RATEMCS7:
3651                        ret_rate = MGN_MCS7;
3652                        break;
3653                case DESC90_RATEMCS8:
3654                        ret_rate = MGN_MCS8;
3655                        break;
3656                case DESC90_RATEMCS9:
3657                        ret_rate = MGN_MCS9;
3658                        break;
3659                case DESC90_RATEMCS10:
3660                        ret_rate = MGN_MCS10;
3661                        break;
3662                case DESC90_RATEMCS11:
3663                        ret_rate = MGN_MCS11;
3664                        break;
3665                case DESC90_RATEMCS12:
3666                        ret_rate = MGN_MCS12;
3667                        break;
3668                case DESC90_RATEMCS13:
3669                        ret_rate = MGN_MCS13;
3670                        break;
3671                case DESC90_RATEMCS14:
3672                        ret_rate = MGN_MCS14;
3673                        break;
3674                case DESC90_RATEMCS15:
3675                        ret_rate = MGN_MCS15;
3676                        break;
3677                case DESC90_RATEMCS32:
3678                        ret_rate = 0x80 | 0x20;
3679                        break;
3680
3681                default:
3682                        ret_rate = 0xff;
3683                        RT_TRACE(COMP_RECV,
3684                                 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3685                                 __func__, rate, bIsHT);
3686                        break;
3687                }
3688        }
3689
3690        return ret_rate;
3691}
3692
3693/*
3694 * Function:     UpdateRxPktTimeStamp
3695 * Overview:     Record the TSF time stamp when receiving a packet
3696 *
3697 * Input:
3698 *       PADAPTER        Adapter
3699 *       PRT_RFD         pRfd,
3700 *
3701 * Output:
3702 *       PRT_RFD         pRfd
3703 *                               (pRfd->Status.TimeStampHigh is updated)
3704 *                               (pRfd->Status.TimeStampLow is updated)
3705 * Return:
3706 *               None
3707 */
3708static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3709                                     struct ieee80211_rx_stats *stats)
3710{
3711        struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3712
3713        if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3714                stats->mac_time[0] = priv->LastRxDescTSFLow;
3715                stats->mac_time[1] = priv->LastRxDescTSFHigh;
3716        } else {
3717                priv->LastRxDescTSFLow = stats->mac_time[0];
3718                priv->LastRxDescTSFHigh = stats->mac_time[1];
3719        }
3720}
3721
3722/* 0-100 index. */
3723static long rtl819x_translate_todbm(u8 signal_strength_index)
3724{
3725        long    signal_power; /* in dBm. */
3726
3727        /* Translate to dBm (x=0.5y-95). */
3728        signal_power = (long)((signal_strength_index + 1) >> 1);
3729        signal_power -= 95;
3730
3731        return signal_power;
3732}
3733
3734/* We can not declare RSSI/EVM total value of sliding window to
3735 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3736 * value will be kept in memory or disk. Declare the value in the adaptor
3737 * and it will be reinitialized when returned from S3/S4.
3738 */
3739static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3740                                    struct ieee80211_rx_stats *pprevious_stats,
3741                                    struct ieee80211_rx_stats *pcurrent_stats)
3742{
3743        bool bcheck = false;
3744        u8      rfpath;
3745        u32     nspatial_stream, tmp_val;
3746        static u32 slide_rssi_index, slide_rssi_statistics;
3747        static u32 slide_evm_index, slide_evm_statistics;
3748        static u32 last_rssi, last_evm;
3749
3750        static u32 slide_beacon_adc_pwdb_index;
3751        static u32 slide_beacon_adc_pwdb_statistics;
3752        static u32 last_beacon_adc_pwdb;
3753
3754        struct rtl_80211_hdr_3addr *hdr;
3755        u16 sc;
3756        unsigned int seq;
3757
3758        hdr = (struct rtl_80211_hdr_3addr *)buffer;
3759        sc = le16_to_cpu(hdr->seq_ctl);
3760        seq = WLAN_GET_SEQ_SEQ(sc);
3761        /* to record the sequence number */
3762        pcurrent_stats->Seq_Num = seq;
3763
3764        /* Check whether we should take the previous packet into accounting */
3765        if (!pprevious_stats->bIsAMPDU) {
3766                /* if previous packet is not aggregated packet */
3767                bcheck = true;
3768        }
3769
3770        if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3771                slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
3772                last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
3773                priv->stats.slide_rssi_total -= last_rssi;
3774        }
3775        priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
3776
3777        priv->stats.slide_signal_strength[slide_rssi_index++] =
3778                pprevious_stats->SignalStrength;
3779        if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
3780                slide_rssi_index = 0;
3781
3782        /* <1> Showed on UI for user, in dbm */
3783        tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
3784        priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
3785        pcurrent_stats->rssi = priv->stats.signal_strength;
3786
3787        /* If the previous packet does not match the criteria, neglect it */
3788        if (!pprevious_stats->bPacketMatchBSSID) {
3789                if (!pprevious_stats->bToSelfBA)
3790                        return;
3791        }
3792
3793        if (!bcheck)
3794                return;
3795
3796        /* only rtl8190 supported
3797         * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
3798         */
3799
3800        /* Check RSSI */
3801        priv->stats.num_process_phyinfo++;
3802
3803        /* record the general signal strength to the sliding window. */
3804
3805        /* <2> Showed on UI for engineering
3806         * hardware does not provide rssi information for each rf path in CCK
3807         */
3808        if (!pprevious_stats->bIsCCK &&
3809            (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
3810                for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
3811                        if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev,
3812                                                            rfpath))
3813                                continue;
3814                        if (priv->stats.rx_rssi_percentage[rfpath] == 0)
3815                                priv->stats.rx_rssi_percentage[rfpath] =
3816                                        pprevious_stats->RxMIMOSignalStrength[rfpath];
3817                        if (pprevious_stats->RxMIMOSignalStrength[rfpath]  > priv->stats.rx_rssi_percentage[rfpath]) {
3818                                priv->stats.rx_rssi_percentage[rfpath] =
3819                                        ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3820                                         (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3821                                priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath]  + 1;
3822                        } else {
3823                                priv->stats.rx_rssi_percentage[rfpath] =
3824                                        ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3825                                         (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3826                        }
3827                        RT_TRACE(COMP_DBG,
3828                                 "priv->stats.rx_rssi_percentage[rfPath]  = %d\n",
3829                                 priv->stats.rx_rssi_percentage[rfpath]);
3830                }
3831        }
3832
3833        /* Check PWDB. */
3834        RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3835                 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3836                 pprevious_stats->RxPWDBAll);
3837
3838        if (pprevious_stats->bPacketBeacon) {
3839                /* record the beacon pwdb to the sliding window. */
3840                if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
3841                        slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
3842                        last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
3843                        priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
3844                }
3845                priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
3846                priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
3847                slide_beacon_adc_pwdb_index++;
3848                if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
3849                        slide_beacon_adc_pwdb_index = 0;
3850                pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
3851                if (pprevious_stats->RxPWDBAll >= 3)
3852                        pprevious_stats->RxPWDBAll -= 3;
3853        }
3854
3855        RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3856                 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3857                 pprevious_stats->RxPWDBAll);
3858
3859        if (pprevious_stats->bPacketToSelf ||
3860            pprevious_stats->bPacketBeacon ||
3861            pprevious_stats->bToSelfBA) {
3862                if (priv->undecorated_smoothed_pwdb < 0)
3863                        /* initialize */
3864                        priv->undecorated_smoothed_pwdb =
3865                                pprevious_stats->RxPWDBAll;
3866                if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
3867                        priv->undecorated_smoothed_pwdb =
3868                                (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3869                                 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3870                        priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
3871                } else {
3872                        priv->undecorated_smoothed_pwdb =
3873                                (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3874                                 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3875                }
3876        }
3877
3878        /* Check EVM */
3879        /* record the general EVM to the sliding window. */
3880        if (pprevious_stats->SignalQuality) {
3881                if (pprevious_stats->bPacketToSelf ||
3882                    pprevious_stats->bPacketBeacon ||
3883                    pprevious_stats->bToSelfBA) {
3884                        if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3885                                slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
3886                                last_evm = priv->stats.slide_evm[slide_evm_index];
3887                                priv->stats.slide_evm_total -= last_evm;
3888                        }
3889
3890                        priv->stats.slide_evm_total +=
3891                                pprevious_stats->SignalQuality;
3892
3893                        priv->stats.slide_evm[slide_evm_index++] =
3894                                pprevious_stats->SignalQuality;
3895                        if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
3896                                slide_evm_index = 0;
3897
3898                        /* <1> Showed on UI for user, in percentage. */
3899                        tmp_val = priv->stats.slide_evm_total /
3900                                  slide_evm_statistics;
3901                        priv->stats.signal_quality = tmp_val;
3902                        /* Showed on UI for user in Windows Vista,
3903                         * for Link quality.
3904                         */
3905                        priv->stats.last_signal_strength_inpercent = tmp_val;
3906                }
3907
3908                /* <2> Showed on UI for engineering */
3909                if (pprevious_stats->bPacketToSelf ||
3910                    pprevious_stats->bPacketBeacon ||
3911                    pprevious_stats->bToSelfBA) {
3912                        for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
3913                                if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
3914                                        if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
3915                                                priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
3916                                        priv->stats.rx_evm_percentage[nspatial_stream] =
3917                                                ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) +
3918                                                 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR);
3919                                }
3920                        }
3921                }
3922        }
3923}
3924
3925/*-----------------------------------------------------------------------------
3926 * Function:    rtl819x_query_rxpwrpercentage()
3927 *
3928 * Overview:
3929 *
3930 * Input:               char            antpower
3931 *
3932 * Output:              NONE
3933 *
3934 * Return:              0-100 percentage
3935 *---------------------------------------------------------------------------
3936 */
3937static u8 rtl819x_query_rxpwrpercentage(s8 antpower)
3938{
3939        if ((antpower <= -100) || (antpower >= 20))
3940                return  0;
3941        else if (antpower >= 0)
3942                return  100;
3943        else
3944                return  100 + antpower;
3945
3946}       /* QueryRxPwrPercentage */
3947
3948static u8 rtl819x_evm_dbtopercentage(s8 value)
3949{
3950        s8 ret_val = clamp(-value, 0, 33) * 3;
3951
3952        if (ret_val == 99)
3953                ret_val = 100;
3954
3955        return ret_val;
3956}
3957
3958/* We want good-looking for signal strength/quality */
3959static long rtl819x_signal_scale_mapping(long currsig)
3960{
3961        long retsig;
3962
3963        /* Step 1. Scale mapping. */
3964        if (currsig >= 61 && currsig <= 100)
3965                retsig = 90 + ((currsig - 60) / 4);
3966        else if (currsig >= 41 && currsig <= 60)
3967                retsig = 78 + ((currsig - 40) / 2);
3968        else if (currsig >= 31 && currsig <= 40)
3969                retsig = 66 + (currsig - 30);
3970        else if (currsig >= 21 && currsig <= 30)
3971                retsig = 54 + (currsig - 20);
3972        else if (currsig >= 5 && currsig <= 20)
3973                retsig = 42 + (((currsig - 5) * 2) / 3);
3974        else if (currsig == 4)
3975                retsig = 36;
3976        else if (currsig == 3)
3977                retsig = 27;
3978        else if (currsig == 2)
3979                retsig = 18;
3980        else if (currsig == 1)
3981                retsig = 9;
3982        else
3983                retsig = currsig;
3984
3985        return retsig;
3986}
3987
3988static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
3989{
3990        if (pdrvinfo->RxHT)
3991                return false;
3992
3993        switch (pdrvinfo->RxRate) {
3994        case DESC90_RATE1M:
3995        case DESC90_RATE2M:
3996        case DESC90_RATE5_5M:
3997        case DESC90_RATE11M:
3998                return true;
3999        default:
4000                return false;
4001        }
4002}
4003
4004static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
4005                                      struct ieee80211_rx_stats *pstats,
4006                                      struct rx_drvinfo_819x_usb  *pdrvinfo,
4007                                      struct ieee80211_rx_stats *precord_stats,
4008                                      bool bpacket_match_bssid,
4009                                      bool bpacket_toself,
4010                                      bool bPacketBeacon,
4011                                      bool bToSelfBA)
4012{