git.oblomov.eu Git - linux-2.6/blob - drivers/net/wireless/rtl8187_dev.c

   1 /*
   2  * Linux device driver for RTL8187
   3  *
   4  * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
   5  * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
   6  *
   7  * Based on the r8187 driver, which is:
   8  * Copyright 2005 Andrea Merello <andreamrl@tiscali.it>, et al.
   9  *
  10  * Magic delays and register offsets below are taken from the original
  11  * r8187 driver sources.  Thanks to Realtek for their support!
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License version 2 as
  15  * published by the Free Software Foundation.
  16  */
  17
  18 #include <linux/init.h>
  19 #include <linux/usb.h>
  20 #include <linux/delay.h>
  21 #include <linux/etherdevice.h>
  22 #include <linux/eeprom_93cx6.h>
  23 #include <net/mac80211.h>
  24
  25 #include "rtl8187.h"
  26 #include "rtl8187_rtl8225.h"
  27
  28 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
  29 MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
  30 MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
  31 MODULE_LICENSE("GPL");
  32
  33 static struct usb_device_id rtl8187_table[] __devinitdata = {
  34         /* Asus */
  35         {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
  36         /* Realtek */
  37         {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
  38         {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
  39         {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
  40         /* Netgear */
  41         {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
  42         {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
  43         {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B},
  44         /* HP */
  45         {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
  46         /* Sitecom */
  47         {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
  48         {}
  49 };
  50
  51 MODULE_DEVICE_TABLE(usb, rtl8187_table);
  52
  53 static const struct ieee80211_rate rtl818x_rates[] = {
  54         { .bitrate = 10, .hw_value = 0, },
  55         { .bitrate = 20, .hw_value = 1, },
  56         { .bitrate = 55, .hw_value = 2, },
  57         { .bitrate = 110, .hw_value = 3, },
  58         { .bitrate = 60, .hw_value = 4, },
  59         { .bitrate = 90, .hw_value = 5, },
  60         { .bitrate = 120, .hw_value = 6, },
  61         { .bitrate = 180, .hw_value = 7, },
  62         { .bitrate = 240, .hw_value = 8, },
  63         { .bitrate = 360, .hw_value = 9, },
  64         { .bitrate = 480, .hw_value = 10, },
  65         { .bitrate = 540, .hw_value = 11, },
  66 };
  67
  68 static const struct ieee80211_channel rtl818x_channels[] = {
  69         { .center_freq = 2412 },
  70         { .center_freq = 2417 },
  71         { .center_freq = 2422 },
  72         { .center_freq = 2427 },
  73         { .center_freq = 2432 },
  74         { .center_freq = 2437 },
  75         { .center_freq = 2442 },
  76         { .center_freq = 2447 },
  77         { .center_freq = 2452 },
  78         { .center_freq = 2457 },
  79         { .center_freq = 2462 },
  80         { .center_freq = 2467 },
  81         { .center_freq = 2472 },
  82         { .center_freq = 2484 },
  83 };
  84
  85 static void rtl8187_iowrite_async_cb(struct urb *urb)
  86 {
  87         kfree(urb->context);
  88         usb_free_urb(urb);
  89 }
  90
  91 static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
  92                                   void *data, u16 len)
  93 {
  94         struct usb_ctrlrequest *dr;
  95         struct urb *urb;
  96         struct rtl8187_async_write_data {
  97                 u8 data[4];
  98                 struct usb_ctrlrequest dr;
  99         } *buf;
 100         int rc;
 101
 102         buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
 103         if (!buf)
 104                 return;
 105
 106         urb = usb_alloc_urb(0, GFP_ATOMIC);
 107         if (!urb) {
 108                 kfree(buf);
 109                 return;
 110         }
 111
 112         dr = &buf->dr;
 113
 114         dr->bRequestType = RTL8187_REQT_WRITE;
 115         dr->bRequest = RTL8187_REQ_SET_REG;
 116         dr->wValue = addr;
 117         dr->wIndex = 0;
 118         dr->wLength = cpu_to_le16(len);
 119
 120         memcpy(buf, data, len);
 121
 122         usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
 123                              (unsigned char *)dr, buf, len,
 124                              rtl8187_iowrite_async_cb, buf);
 125         rc = usb_submit_urb(urb, GFP_ATOMIC);
 126         if (rc < 0) {
 127                 kfree(buf);
 128                 usb_free_urb(urb);
 129         }
 130 }
 131
 132 static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
 133                                            __le32 *addr, u32 val)
 134 {
 135         __le32 buf = cpu_to_le32(val);
 136
 137         rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
 138                               &buf, sizeof(buf));
 139 }
 140
 141 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
 142 {
 143         struct rtl8187_priv *priv = dev->priv;
 144
 145         data <<= 8;
 146         data |= addr | 0x80;
 147
 148         rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
 149         rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
 150         rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
 151         rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
 152
 153         msleep(1);
 154 }
 155
 156 static void rtl8187_tx_cb(struct urb *urb)
 157 {
 158         struct sk_buff *skb = (struct sk_buff *)urb->context;
 159         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 160         struct ieee80211_hw *hw = info->driver_data[0];
 161         struct rtl8187_priv *priv = hw->priv;
 162
 163         usb_free_urb(info->driver_data[1]);
 164         skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
 165                                           sizeof(struct rtl8187_tx_hdr));
 166         memset(&info->status, 0, sizeof(info->status));
 167         info->flags |= IEEE80211_TX_STAT_ACK;
 168         ieee80211_tx_status_irqsafe(hw, skb);
 169 }
 170
 171 static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 172 {
 173         struct rtl8187_priv *priv = dev->priv;
 174         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 175         struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data;
 176         unsigned int ep;
 177         void *buf;
 178         struct urb *urb;
 179         __le16 rts_dur = 0;
 180         u32 flags;
 181         int rc;
 182
 183         urb = usb_alloc_urb(0, GFP_ATOMIC);
 184         if (!urb) {
 185                 kfree_skb(skb);
 186                 return 0;
 187         }
 188
 189         flags = skb->len;
 190         flags |= RTL818X_TX_DESC_FLAG_NO_ENC;
 191
 192         flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
 193         if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
 194                 flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
 195         if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
 196                 flags |= RTL818X_TX_DESC_FLAG_RTS;
 197                 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 198                 rts_dur = ieee80211_rts_duration(dev, priv->vif,
 199                                                  skb->len, info);
 200         } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
 201                 flags |= RTL818X_TX_DESC_FLAG_CTS;
 202                 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 203         }
 204
 205         if (!priv->is_rtl8187b) {
 206                 struct rtl8187_tx_hdr *hdr =
 207                         (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
 208                 hdr->flags = cpu_to_le32(flags);
 209                 hdr->len = 0;
 210                 hdr->rts_duration = rts_dur;
 211                 hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
 212                 buf = hdr;
 213
 214                 ep = 2;
 215         } else {
 216                 /* fc needs to be calculated before skb_push() */
 217                 unsigned int epmap[4] = { 6, 7, 5, 4 };
 218                 struct ieee80211_hdr *tx_hdr =
 219                         (struct ieee80211_hdr *)(skb->data);
 220                 u16 fc = le16_to_cpu(tx_hdr->frame_control);
 221
 222                 struct rtl8187b_tx_hdr *hdr =
 223                         (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
 224                 struct ieee80211_rate *txrate =
 225                         ieee80211_get_tx_rate(dev, info);
 226                 memset(hdr, 0, sizeof(*hdr));
 227                 hdr->flags = cpu_to_le32(flags);
 228                 hdr->rts_duration = rts_dur;
 229                 hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
 230                 hdr->tx_duration =
 231                         ieee80211_generic_frame_duration(dev, priv->vif,
 232                                                          skb->len, txrate);
 233                 buf = hdr;
 234
 235                 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
 236                         ep = 12;
 237                 else
 238                         ep = epmap[skb_get_queue_mapping(skb)];
 239         }
 240
 241         /* FIXME: The sequence that follows is needed for this driver to
 242          * work with mac80211 since "mac80211: fix TX sequence numbers".
 243          * As with the temporary code in rt2x00, changes will be needed
 244          * to get proper sequence numbers on beacons. In addition, this
 245          * patch places the sequence number in the hardware state, which
 246          * limits us to a single virtual state.
 247          */
 248         if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
 249                 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
 250                         priv->seqno += 0x10;
 251                 ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
 252                 ieee80211hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
 253         }
 254
 255         info->driver_data[0] = dev;
 256         info->driver_data[1] = urb;
 257
 258         usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
 259                           buf, skb->len, rtl8187_tx_cb, skb);
 260         rc = usb_submit_urb(urb, GFP_ATOMIC);
 261         if (rc < 0) {
 262                 usb_free_urb(urb);
 263                 kfree_skb(skb);
 264         }
 265
 266         return 0;
 267 }
 268
 269 static void rtl8187_rx_cb(struct urb *urb)
 270 {
 271         struct sk_buff *skb = (struct sk_buff *)urb->context;
 272         struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
 273         struct ieee80211_hw *dev = info->dev;
 274         struct rtl8187_priv *priv = dev->priv;
 275         struct ieee80211_rx_status rx_status = { 0 };
 276         int rate, signal;
 277         u32 flags;
 278         u32 quality;
 279
 280         spin_lock(&priv->rx_queue.lock);
 281         if (skb->next)
 282                 __skb_unlink(skb, &priv->rx_queue);
 283         else {
 284                 spin_unlock(&priv->rx_queue.lock);
 285                 return;
 286         }
 287         spin_unlock(&priv->rx_queue.lock);
 288
 289         if (unlikely(urb->status)) {
 290                 usb_free_urb(urb);
 291                 dev_kfree_skb_irq(skb);
 292                 return;
 293         }
 294
 295         skb_put(skb, urb->actual_length);
 296         if (!priv->is_rtl8187b) {
 297                 struct rtl8187_rx_hdr *hdr =
 298                         (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
 299                 flags = le32_to_cpu(hdr->flags);
 300                 signal = hdr->signal & 0x7f;
 301                 rx_status.antenna = (hdr->signal >> 7) & 1;
 302                 rx_status.noise = hdr->noise;
 303                 rx_status.mactime = le64_to_cpu(hdr->mac_time);
 304                 priv->quality = signal;
 305                 rx_status.qual = priv->quality;
 306                 priv->noise = hdr->noise;
 307                 rate = (flags >> 20) & 0xF;
 308                 if (rate > 3) { /* OFDM rate */
 309                         if (signal > 90)
 310                                 signal = 90;
 311                         else if (signal < 25)
 312                                 signal = 25;
 313                         signal = 90 - signal;
 314                 } else {        /* CCK rate */
 315                         if (signal > 95)
 316                                 signal = 95;
 317                         else if (signal < 30)
 318                                 signal = 30;
 319                         signal = 95 - signal;
 320                 }
 321                 rx_status.signal = signal;
 322                 priv->signal = signal;
 323         } else {
 324                 struct rtl8187b_rx_hdr *hdr =
 325                         (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
 326                 /* The Realtek datasheet for the RTL8187B shows that the RX
 327                  * header contains the following quantities: signal quality,
 328                  * RSSI, AGC, the received power in dB, and the measured SNR.
 329                  * In testing, none of these quantities show qualitative
 330                  * agreement with AP signal strength, except for the AGC,
 331                  * which is inversely proportional to the strength of the
 332                  * signal. In the following, the quality and signal strength
 333                  * are derived from the AGC. The arbitrary scaling constants
 334                  * are chosen to make the results close to the values obtained
 335                  * for a BCM4312 using b43 as the driver. The noise is ignored
 336                  * for now.
 337                  */
 338                 flags = le32_to_cpu(hdr->flags);
 339                 quality = 170 - hdr->agc;
 340                 if (quality > 100)
 341                         quality = 100;
 342                 signal = 14 - hdr->agc / 2;
 343                 rx_status.qual = quality;
 344                 priv->quality = quality;
 345                 rx_status.signal = signal;
 346                 priv->signal = signal;
 347                 rx_status.antenna = (hdr->rssi >> 7) & 1;
 348                 rx_status.mactime = le64_to_cpu(hdr->mac_time);
 349                 rate = (flags >> 20) & 0xF;
 350         }
 351
 352         skb_trim(skb, flags & 0x0FFF);
 353         rx_status.rate_idx = rate;
 354         rx_status.freq = dev->conf.channel->center_freq;
 355         rx_status.band = dev->conf.channel->band;
 356         rx_status.flag |= RX_FLAG_TSFT;
 357         if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
 358                 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
 359         ieee80211_rx_irqsafe(dev, skb, &rx_status);
 360
 361         skb = dev_alloc_skb(RTL8187_MAX_RX);
 362         if (unlikely(!skb)) {
 363                 usb_free_urb(urb);
 364                 /* TODO check rx queue length and refill *somewhere* */
 365                 return;
 366         }
 367
 368         info = (struct rtl8187_rx_info *)skb->cb;
 369         info->urb = urb;
 370         info->dev = dev;
 371         urb->transfer_buffer = skb_tail_pointer(skb);
 372         urb->context = skb;
 373         skb_queue_tail(&priv->rx_queue, skb);
 374
 375         usb_submit_urb(urb, GFP_ATOMIC);
 376 }
 377
 378 static int rtl8187_init_urbs(struct ieee80211_hw *dev)
 379 {
 380         struct rtl8187_priv *priv = dev->priv;
 381         struct urb *entry;
 382         struct sk_buff *skb;
 383         struct rtl8187_rx_info *info;
 384
 385         while (skb_queue_len(&priv->rx_queue) < 8) {
 386                 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
 387                 if (!skb)
 388                         break;
 389                 entry = usb_alloc_urb(0, GFP_KERNEL);
 390                 if (!entry) {
 391                         kfree_skb(skb);
 392                         break;
 393                 }
 394                 usb_fill_bulk_urb(entry, priv->udev,
 395                                   usb_rcvbulkpipe(priv->udev,
 396                                   priv->is_rtl8187b ? 3 : 1),
 397                                   skb_tail_pointer(skb),
 398                                   RTL8187_MAX_RX, rtl8187_rx_cb, skb);
 399                 info = (struct rtl8187_rx_info *)skb->cb;
 400                 info->urb = entry;
 401                 info->dev = dev;
 402                 skb_queue_tail(&priv->rx_queue, skb);
 403                 usb_submit_urb(entry, GFP_KERNEL);
 404         }
 405
 406         return 0;
 407 }
 408
 409 static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
 410 {
 411         struct rtl8187_priv *priv = dev->priv;
 412         u8 reg;
 413         int i;
 414
 415         reg = rtl818x_ioread8(priv, &priv->map->CMD);
 416         reg &= (1 << 1);
 417         reg |= RTL818X_CMD_RESET;
 418         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 419
 420         i = 10;
 421         do {
 422                 msleep(2);
 423                 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
 424                       RTL818X_CMD_RESET))
 425                         break;
 426         } while (--i);
 427
 428         if (!i) {
 429                 printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
 430                 return -ETIMEDOUT;
 431         }
 432
 433         /* reload registers from eeprom */
 434         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
 435
 436         i = 10;
 437         do {
 438                 msleep(4);
 439                 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
 440                       RTL818X_EEPROM_CMD_CONFIG))
 441                         break;
 442         } while (--i);
 443
 444         if (!i) {
 445                 printk(KERN_ERR "%s: eeprom reset timeout!\n",
 446                        wiphy_name(dev->wiphy));
 447                 return -ETIMEDOUT;
 448         }
 449
 450         return 0;
 451 }
 452
 453 static int rtl8187_init_hw(struct ieee80211_hw *dev)
 454 {
 455         struct rtl8187_priv *priv = dev->priv;
 456         u8 reg;
 457         int res;
 458
 459         /* reset */
 460         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 461                          RTL818X_EEPROM_CMD_CONFIG);
 462         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 463         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg |
 464                          RTL818X_CONFIG3_ANAPARAM_WRITE);
 465         rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
 466                           RTL8187_RTL8225_ANAPARAM_ON);
 467         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
 468                           RTL8187_RTL8225_ANAPARAM2_ON);
 469         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg &
 470                          ~RTL818X_CONFIG3_ANAPARAM_WRITE);
 471         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 472                          RTL818X_EEPROM_CMD_NORMAL);
 473
 474         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
 475
 476         msleep(200);
 477         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
 478         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
 479         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
 480         msleep(200);
 481
 482         res = rtl8187_cmd_reset(dev);
 483         if (res)
 484                 return res;
 485
 486         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 487         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 488         rtl818x_iowrite8(priv, &priv->map->CONFIG3,
 489                         reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
 490         rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
 491                           RTL8187_RTL8225_ANAPARAM_ON);
 492         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
 493                           RTL8187_RTL8225_ANAPARAM2_ON);
 494         rtl818x_iowrite8(priv, &priv->map->CONFIG3,
 495                         reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
 496         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 497
 498         /* setup card */
 499         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
 500         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
 501
 502         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
 503         rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
 504         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
 505
 506         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 507
 508         rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
 509         reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
 510         reg &= 0x3F;
 511         reg |= 0x80;
 512         rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
 513
 514         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 515
 516         rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
 517         rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
 518         rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
 519
 520         // TODO: set RESP_RATE and BRSR properly
 521         rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
 522         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
 523
 524         /* host_usb_init */
 525         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
 526         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
 527         reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
 528         rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
 529         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
 530         rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
 531         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
 532         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
 533         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
 534         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
 535         msleep(100);
 536
 537         rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
 538         rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
 539         rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
 540         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 541                          RTL818X_EEPROM_CMD_CONFIG);
 542         rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
 543         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 544                          RTL818X_EEPROM_CMD_NORMAL);
 545         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
 546         msleep(100);
 547
 548         priv->rf->init(dev);
 549
 550         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
 551         reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
 552         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
 553         rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
 554         rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
 555         rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
 556         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
 557
 558         return 0;
 559 }
 560
 561 static const u8 rtl8187b_reg_table[][3] = {
 562         {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
 563         {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
 564         {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
 565         {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},
 566
 567         {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
 568         {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
 569         {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xE0, 0xFF, 1}, {0xE1, 0x0F, 1},
 570         {0xE2, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, {0xF2, 0x02, 1},
 571         {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, {0xF6, 0x06, 1},
 572         {0xF7, 0x07, 1}, {0xF8, 0x08, 1},
 573
 574         {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
 575         {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
 576         {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
 577         {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
 578         {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
 579         {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
 580         {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, {0x72, 0x56, 2},
 581         {0x73, 0x9A, 2},
 582
 583         {0x34, 0xF0, 0}, {0x35, 0x0F, 0}, {0x5B, 0x40, 0}, {0x84, 0x88, 0},
 584         {0x85, 0x24, 0}, {0x88, 0x54, 0}, {0x8B, 0xB8, 0}, {0x8C, 0x07, 0},
 585         {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, {0x95, 0x12, 0}, {0x96, 0x00, 0},
 586         {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, {0x9F, 0x10, 0}, {0xB4, 0x22, 0},
 587         {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, {0xEE, 0x00, 0}, {0x91, 0x03, 0},
 588
 589         {0x4C, 0x00, 2}, {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0},
 590         {0x8E, 0x08, 0}, {0x8F, 0x00, 0}
 591 };
 592
 593 static int rtl8187b_init_hw(struct ieee80211_hw *dev)
 594 {
 595         struct rtl8187_priv *priv = dev->priv;
 596         int res, i;
 597         u8 reg;
 598
 599         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 600                          RTL818X_EEPROM_CMD_CONFIG);
 601
 602         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 603         reg |= RTL818X_CONFIG3_ANAPARAM_WRITE | RTL818X_CONFIG3_GNT_SELECT;
 604         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 605         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
 606                           RTL8187B_RTL8225_ANAPARAM2_ON);
 607         rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
 608                           RTL8187B_RTL8225_ANAPARAM_ON);
 609         rtl818x_iowrite8(priv, &priv->map->ANAPARAM3,
 610                          RTL8187B_RTL8225_ANAPARAM3_ON);
 611
 612         rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
 613         reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
 614         rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
 615         rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));
 616
 617         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 618         reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
 619         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 620
 621         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 622                          RTL818X_EEPROM_CMD_NORMAL);
 623
 624         res = rtl8187_cmd_reset(dev);
 625         if (res)
 626                 return res;
 627
 628         rtl818x_iowrite16(priv, (__le16 *)0xFF2D, 0x0FFF);
 629         reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
 630         reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
 631         rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
 632         reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
 633         reg |= RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT |
 634                RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
 635         rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
 636
 637         rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
 638         reg = rtl818x_ioread8(priv, &priv->map->RATE_FALLBACK);
 639         reg |= RTL818X_RATE_FALLBACK_ENABLE;
 640         rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, reg);
 641
 642         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
 643         rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
 644         rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);
 645
 646         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 647                          RTL818X_EEPROM_CMD_CONFIG);
 648         reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
 649         rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
 650         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 651                          RTL818X_EEPROM_CMD_NORMAL);
 652
 653         rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
 654         for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
 655                 rtl818x_iowrite8_idx(priv,
 656                                      (u8 *)(uintptr_t)
 657                                      (rtl8187b_reg_table[i][0] | 0xFF00),
 658                                      rtl8187b_reg_table[i][1],
 659                                      rtl8187b_reg_table[i][2]);
 660         }
 661
 662         rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
 663         rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
 664
 665         rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
 666         rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
 667         rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);
 668
 669         rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);
 670
 671         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
 672
 673         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 674                          RTL818X_EEPROM_CMD_CONFIG);
 675         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 676         reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
 677         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 678         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 679                          RTL818X_EEPROM_CMD_NORMAL);
 680
 681         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
 682         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
 683         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
 684         msleep(1100);
 685
 686         priv->rf->init(dev);
 687
 688         reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
 689         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 690         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
 691
 692         rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
 693         rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
 694         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
 695         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
 696         rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
 697         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
 698         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
 699
 700         reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
 701         rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
 702         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
 703         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
 704         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
 705         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
 706         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
 707         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
 708         rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
 709         rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
 710         rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
 711         rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
 712         rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);
 713
 714         rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);
 715
 716         rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);
 717
 718         return 0;
 719 }
 720
 721 static int rtl8187_start(struct ieee80211_hw *dev)
 722 {
 723         struct rtl8187_priv *priv = dev->priv;
 724         u32 reg;
 725         int ret;
 726
 727         ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
 728                                      rtl8187b_init_hw(dev);
 729         if (ret)
 730                 return ret;
 731
 732         mutex_lock(&priv->conf_mutex);
 733         if (priv->is_rtl8187b) {
 734                 reg = RTL818X_RX_CONF_MGMT |
 735                       RTL818X_RX_CONF_DATA |
 736                       RTL818X_RX_CONF_BROADCAST |
 737                       RTL818X_RX_CONF_NICMAC |
 738                       RTL818X_RX_CONF_BSSID |
 739                       (7 << 13 /* RX FIFO threshold NONE */) |
 740                       (7 << 10 /* MAX RX DMA */) |
 741                       RTL818X_RX_CONF_RX_AUTORESETPHY |
 742                       RTL818X_RX_CONF_ONLYERLPKT |
 743                       RTL818X_RX_CONF_MULTICAST;
 744                 priv->rx_conf = reg;
 745                 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
 746
 747                 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
 748                                   RTL818X_TX_CONF_HW_SEQNUM |
 749                                   RTL818X_TX_CONF_DISREQQSIZE |
 750                                   (7 << 8  /* short retry limit */) |
 751                                   (7 << 0  /* long retry limit */) |
 752                                   (7 << 21 /* MAX TX DMA */));
 753                 rtl8187_init_urbs(dev);
 754                 mutex_unlock(&priv->conf_mutex);
 755                 return 0;
 756         }
 757
 758         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
 759
 760         rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
 761         rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
 762
 763         rtl8187_init_urbs(dev);
 764
 765         reg = RTL818X_RX_CONF_ONLYERLPKT |
 766               RTL818X_RX_CONF_RX_AUTORESETPHY |
 767               RTL818X_RX_CONF_BSSID |
 768               RTL818X_RX_CONF_MGMT |
 769               RTL818X_RX_CONF_DATA |
 770               (7 << 13 /* RX FIFO threshold NONE */) |
 771               (7 << 10 /* MAX RX DMA */) |
 772               RTL818X_RX_CONF_BROADCAST |
 773               RTL818X_RX_CONF_NICMAC;
 774
 775         priv->rx_conf = reg;
 776         rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
 777
 778         reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
 779         reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
 780         reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
 781         rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
 782
 783         reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
 784         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
 785         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
 786         reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
 787         rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
 788
 789         reg  = RTL818X_TX_CONF_CW_MIN |
 790                (7 << 21 /* MAX TX DMA */) |
 791                RTL818X_TX_CONF_NO_ICV;
 792         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
 793
 794         reg = rtl818x_ioread8(priv, &priv->map->CMD);
 795         reg |= RTL818X_CMD_TX_ENABLE;
 796         reg |= RTL818X_CMD_RX_ENABLE;
 797         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 798         mutex_unlock(&priv->conf_mutex);
 799
 800         return 0;
 801 }
 802
 803 static void rtl8187_stop(struct ieee80211_hw *dev)
 804 {
 805         struct rtl8187_priv *priv = dev->priv;
 806         struct rtl8187_rx_info *info;
 807         struct sk_buff *skb;
 808         u32 reg;
 809
 810         mutex_lock(&priv->conf_mutex);
 811         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
 812
 813         reg = rtl818x_ioread8(priv, &priv->map->CMD);
 814         reg &= ~RTL818X_CMD_TX_ENABLE;
 815         reg &= ~RTL818X_CMD_RX_ENABLE;
 816         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 817
 818         priv->rf->stop(dev);
 819
 820         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 821         reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
 822         rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
 823         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 824
 825         while ((skb = skb_dequeue(&priv->rx_queue))) {
 826                 info = (struct rtl8187_rx_info *)skb->cb;
 827                 usb_kill_urb(info->urb);
 828                 kfree_skb(skb);
 829         }
 830         mutex_unlock(&priv->conf_mutex);
 831 }
 832
 833 static int rtl8187_add_interface(struct ieee80211_hw *dev,
 834                                  struct ieee80211_if_init_conf *conf)
 835 {
 836         struct rtl8187_priv *priv = dev->priv;
 837         int i;
 838
 839         if (priv->mode != NL80211_IFTYPE_MONITOR)
 840                 return -EOPNOTSUPP;
 841
 842         switch (conf->type) {
 843         case NL80211_IFTYPE_STATION:
 844                 priv->mode = conf->type;
 845                 break;
 846         default:
 847                 return -EOPNOTSUPP;
 848         }
 849
 850         mutex_lock(&priv->conf_mutex);
 851         priv->vif = conf->vif;
 852
 853         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 854         for (i = 0; i < ETH_ALEN; i++)
 855                 rtl818x_iowrite8(priv, &priv->map->MAC[i],
 856                                  ((u8 *)conf->mac_addr)[i]);
 857         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 858
 859         mutex_unlock(&priv->conf_mutex);
 860         return 0;
 861 }
 862
 863 static void rtl8187_remove_interface(struct ieee80211_hw *dev,
 864                                      struct ieee80211_if_init_conf *conf)
 865 {
 866         struct rtl8187_priv *priv = dev->priv;
 867         mutex_lock(&priv->conf_mutex);
 868         priv->mode = NL80211_IFTYPE_MONITOR;
 869         priv->vif = NULL;
 870         mutex_unlock(&priv->conf_mutex);
 871 }
 872
 873 static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
 874 {
 875         struct rtl8187_priv *priv = dev->priv;
 876         u32 reg;
 877
 878         mutex_lock(&priv->conf_mutex);
 879         reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
 880         /* Enable TX loopback on MAC level to avoid TX during channel
 881          * changes, as this has be seen to causes problems and the
 882          * card will stop work until next reset
 883          */
 884         rtl818x_iowrite32(priv, &priv->map->TX_CONF,
 885                           reg | RTL818X_TX_CONF_LOOPBACK_MAC);
 886         msleep(10);
 887         priv->rf->set_chan(dev, conf);
 888         msleep(10);
 889         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
 890
 891         if (!priv->is_rtl8187b) {
 892                 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
 893
 894                 if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
 895                         rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
 896                         rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
 897                         rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
 898                         rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
 899                 } else {
 900                         rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
 901                         rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
 902                         rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
 903                         rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
 904                 }
 905         }
 906
 907         rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
 908         rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
 909         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
 910         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
 911         mutex_unlock(&priv->conf_mutex);
 912         return 0;
 913 }
 914
 915 static int rtl8187_config_interface(struct ieee80211_hw *dev,
 916                                     struct ieee80211_vif *vif,
 917                                     struct ieee80211_if_conf *conf)
 918 {
 919         struct rtl8187_priv *priv = dev->priv;
 920         int i;
 921         u8 reg;
 922
 923         mutex_lock(&priv->conf_mutex);
 924         for (i = 0; i < ETH_ALEN; i++)
 925                 rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
 926
 927         if (is_valid_ether_addr(conf->bssid)) {
 928                 reg = RTL818X_MSR_INFRA;
 929                 if (priv->is_rtl8187b)
 930                         reg |= RTL818X_MSR_ENEDCA;
 931                 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
 932         } else {
 933                 reg = RTL818X_MSR_NO_LINK;
 934                 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
 935         }
 936
 937         mutex_unlock(&priv->conf_mutex);
 938         return 0;
 939 }
 940
 941 static void rtl8187_configure_filter(struct ieee80211_hw *dev,
 942                                      unsigned int changed_flags,
 943                                      unsigned int *total_flags,
 944                                      int mc_count, struct dev_addr_list *mclist)
 945 {
 946         struct rtl8187_priv *priv = dev->priv;
 947
 948         if (changed_flags & FIF_FCSFAIL)
 949                 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
 950         if (changed_flags & FIF_CONTROL)
 951                 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
 952         if (changed_flags & FIF_OTHER_BSS)
 953                 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
 954         if (*total_flags & FIF_ALLMULTI || mc_count > 0)
 955                 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
 956         else
 957                 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
 958
 959         *total_flags = 0;
 960
 961         if (priv->rx_conf & RTL818X_RX_CONF_FCS)
 962                 *total_flags |= FIF_FCSFAIL;
 963         if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
 964                 *total_flags |= FIF_CONTROL;
 965         if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
 966                 *total_flags |= FIF_OTHER_BSS;
 967         if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
 968                 *total_flags |= FIF_ALLMULTI;
 969
 970         rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
 971 }
 972
 973 static const struct ieee80211_ops rtl8187_ops = {
 974         .tx                     = rtl8187_tx,
 975         .start                  = rtl8187_start,
 976         .stop                   = rtl8187_stop,
 977         .add_interface          = rtl8187_add_interface,
 978         .remove_interface       = rtl8187_remove_interface,
 979         .config                 = rtl8187_config,
 980         .config_interface       = rtl8187_config_interface,
 981         .configure_filter       = rtl8187_configure_filter,
 982 };
 983
 984 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
 985 {
 986         struct ieee80211_hw *dev = eeprom->data;
 987         struct rtl8187_priv *priv = dev->priv;
 988         u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
 989
 990         eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
 991         eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
 992         eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
 993         eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
 994 }
 995
 996 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
 997 {
 998         struct ieee80211_hw *dev = eeprom->data;
 999         struct rtl8187_priv *priv = dev->priv;
1000         u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
1001
1002         if (eeprom->reg_data_in)
1003                 reg |= RTL818X_EEPROM_CMD_WRITE;
1004         if (eeprom->reg_data_out)
1005                 reg |= RTL818X_EEPROM_CMD_READ;
1006         if (eeprom->reg_data_clock)
1007                 reg |= RTL818X_EEPROM_CMD_CK;
1008         if (eeprom->reg_chip_select)
1009                 reg |= RTL818X_EEPROM_CMD_CS;
1010
1011         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
1012         udelay(10);
1013 }
1014
1015 static int __devinit rtl8187_probe(struct usb_interface *intf,
1016                                    const struct usb_device_id *id)
1017 {
1018         struct usb_device *udev = interface_to_usbdev(intf);
1019         struct ieee80211_hw *dev;
1020         struct rtl8187_priv *priv;
1021         struct eeprom_93cx6 eeprom;
1022         struct ieee80211_channel *channel;
1023         const char *chip_name;
1024         u16 txpwr, reg;
1025         int err, i;
1026         DECLARE_MAC_BUF(mac);
1027
1028         dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
1029         if (!dev) {
1030                 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
1031                 return -ENOMEM;
1032         }
1033
1034         priv = dev->priv;
1035         priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
1036
1037         SET_IEEE80211_DEV(dev, &intf->dev);
1038         usb_set_intfdata(intf, dev);
1039         priv->udev = udev;
1040
1041         usb_get_dev(udev);
1042
1043         skb_queue_head_init(&priv->rx_queue);
1044
1045         BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
1046         BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
1047
1048         memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
1049         memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
1050         priv->map = (struct rtl818x_csr *)0xFF00;
1051
1052         priv->band.band = IEEE80211_BAND_2GHZ;
1053         priv->band.channels = priv->channels;
1054         priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
1055         priv->band.bitrates = priv->rates;
1056         priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1057         dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
1058
1059
1060         priv->mode = NL80211_IFTYPE_MONITOR;
1061         dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1062                      IEEE80211_HW_RX_INCLUDES_FCS;
1063
1064         eeprom.data = dev;
1065         eeprom.register_read = rtl8187_eeprom_register_read;
1066         eeprom.register_write = rtl8187_eeprom_register_write;
1067         if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1068                 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1069         else
1070                 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1071
1072         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1073         udelay(10);
1074
1075         eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
1076                                (__le16 __force *)dev->wiphy->perm_addr, 3);
1077         if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
1078                 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
1079                        "generated MAC address\n");
1080                 random_ether_addr(dev->wiphy->perm_addr);
1081         }
1082
1083         channel = priv->channels;
1084         for (i = 0; i < 3; i++) {
1085                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
1086                                   &txpwr);
1087                 (*channel++).hw_value = txpwr & 0xFF;
1088                 (*channel++).hw_value = txpwr >> 8;
1089         }
1090         for (i = 0; i < 2; i++) {
1091                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
1092                                   &txpwr);
1093                 (*channel++).hw_value = txpwr & 0xFF;
1094                 (*channel++).hw_value = txpwr >> 8;
1095         }
1096
1097         eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
1098                           &priv->txpwr_base);
1099
1100         reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
1101         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
1102         /* 0 means asic B-cut, we should use SW 3 wire
1103          * bit-by-bit banging for radio. 1 means we can use
1104          * USB specific request to write radio registers */
1105         priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
1106         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
1107         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1108
1109         if (!priv->is_rtl8187b) {
1110                 u32 reg32;
1111                 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1112                 reg32 &= RTL818X_TX_CONF_HWVER_MASK;
1113                 switch (reg32) {
1114                 case RTL818X_TX_CONF_R8187vD_B:
1115                         /* Some RTL8187B devices have a USB ID of 0x8187
1116                          * detect them here */
1117                         chip_name = "RTL8187BvB(early)";
1118                         priv->is_rtl8187b = 1;
1119                         priv->hw_rev = RTL8187BvB;
1120                         break;
1121                 case RTL818X_TX_CONF_R8187vD:
1122                         chip_name = "RTL8187vD";
1123                         break;
1124                 default:
1125                         chip_name = "RTL8187vB (default)";
1126                 }
1127        } else {
1128                 /*
1129                  * Force USB request to write radio registers for 8187B, Realtek
1130                  * only uses it in their sources
1131                  */
1132                 /*if (priv->asic_rev == 0) {
1133                         printk(KERN_WARNING "rtl8187: Forcing use of USB "
1134                                "requests to write to radio registers\n");
1135                         priv->asic_rev = 1;
1136                 }*/
1137                 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
1138                 case RTL818X_R8187B_B:
1139                         chip_name = "RTL8187BvB";
1140                         priv->hw_rev = RTL8187BvB;
1141                         break;
1142                 case RTL818X_R8187B_D:
1143                         chip_name = "RTL8187BvD";
1144                         priv->hw_rev = RTL8187BvD;
1145                         break;
1146                 case RTL818X_R8187B_E:
1147                         chip_name = "RTL8187BvE";
1148                         priv->hw_rev = RTL8187BvE;
1149                         break;
1150                 default:
1151                         chip_name = "RTL8187BvB (default)";
1152                         priv->hw_rev = RTL8187BvB;
1153                 }
1154         }
1155
1156         if (!priv->is_rtl8187b) {
1157                 for (i = 0; i < 2; i++) {
1158                         eeprom_93cx6_read(&eeprom,
1159                                           RTL8187_EEPROM_TXPWR_CHAN_6 + i,
1160                                           &txpwr);
1161                         (*channel++).hw_value = txpwr & 0xFF;
1162                         (*channel++).hw_value = txpwr >> 8;
1163                 }
1164         } else {
1165                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
1166                                   &txpwr);
1167                 (*channel++).hw_value = txpwr & 0xFF;
1168
1169                 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
1170                 (*channel++).hw_value = txpwr & 0xFF;
1171
1172                 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
1173                 (*channel++).hw_value = txpwr & 0xFF;
1174                 (*channel++).hw_value = txpwr >> 8;
1175         }
1176
1177         if (priv->is_rtl8187b) {
1178                 printk(KERN_WARNING "rtl8187: 8187B chip detected. Support "
1179                         "is EXPERIMENTAL, and could damage your\n"
1180                         "         hardware, use at your own risk\n");
1181                 dev->flags |= IEEE80211_HW_SIGNAL_DBM;
1182         } else {
1183                 dev->flags |= IEEE80211_HW_SIGNAL_UNSPEC;
1184                 dev->max_signal = 65;
1185         }
1186
1187         dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1188
1189         if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
1190                 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
1191                        " info!\n");
1192
1193         priv->rf = rtl8187_detect_rf(dev);
1194         dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
1195                                   sizeof(struct rtl8187_tx_hdr) :
1196                                   sizeof(struct rtl8187b_tx_hdr);
1197         if (!priv->is_rtl8187b)
1198                 dev->queues = 1;
1199         else
1200                 dev->queues = 4;
1201
1202         err = ieee80211_register_hw(dev);
1203         if (err) {
1204                 printk(KERN_ERR "rtl8187: Cannot register device\n");
1205                 goto err_free_dev;
1206         }
1207         mutex_init(&priv->conf_mutex);
1208
1209         printk(KERN_INFO "%s: hwaddr %s, %s V%d + %s\n",
1210                wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
1211                chip_name, priv->asic_rev, priv->rf->name);
1212
1213         return 0;
1214
1215  err_free_dev:
1216         ieee80211_free_hw(dev);
1217         usb_set_intfdata(intf, NULL);
1218         usb_put_dev(udev);
1219         return err;
1220 }
1221
1222 static void __devexit rtl8187_disconnect(struct usb_interface *intf)
1223 {
1224         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1225         struct rtl8187_priv *priv;
1226
1227         if (!dev)
1228                 return;
1229
1230         ieee80211_unregister_hw(dev);
1231
1232         priv = dev->priv;
1233         usb_put_dev(interface_to_usbdev(intf));
1234         ieee80211_free_hw(dev);
1235 }
1236
1237 static struct usb_driver rtl8187_driver = {
1238         .name           = KBUILD_MODNAME,
1239         .id_table       = rtl8187_table,
1240         .probe          = rtl8187_probe,
1241         .disconnect     = __devexit_p(rtl8187_disconnect),
1242 };
1243
1244 static int __init rtl8187_init(void)
1245 {
1246         return usb_register(&rtl8187_driver);
1247 }
1248
1249 static void __exit rtl8187_exit(void)
1250 {
1251         usb_deregister(&rtl8187_driver);
1252 }
1253
1254 module_init(rtl8187_init);
1255 module_exit(rtl8187_exit);