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         /* Belkin */
  37         {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B},
  38         /* Realtek */
  39         {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
  40         {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
  41         {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
  42         {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B},
  43         /* Netgear */
  44         {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
  45         {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
  46         {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B},
  47         /* HP */
  48         {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
  49         /* Sitecom */
  50         {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
  51         {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
  52         /* Abocom */
  53         {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187},
  54         {}
  55 };
  56
  57 MODULE_DEVICE_TABLE(usb, rtl8187_table);
  58
  59 static const struct ieee80211_rate rtl818x_rates[] = {
  60         { .bitrate = 10, .hw_value = 0, },
  61         { .bitrate = 20, .hw_value = 1, },
  62         { .bitrate = 55, .hw_value = 2, },
  63         { .bitrate = 110, .hw_value = 3, },
  64         { .bitrate = 60, .hw_value = 4, },
  65         { .bitrate = 90, .hw_value = 5, },
  66         { .bitrate = 120, .hw_value = 6, },
  67         { .bitrate = 180, .hw_value = 7, },
  68         { .bitrate = 240, .hw_value = 8, },
  69         { .bitrate = 360, .hw_value = 9, },
  70         { .bitrate = 480, .hw_value = 10, },
  71         { .bitrate = 540, .hw_value = 11, },
  72 };
  73
  74 static const struct ieee80211_channel rtl818x_channels[] = {
  75         { .center_freq = 2412 },
  76         { .center_freq = 2417 },
  77         { .center_freq = 2422 },
  78         { .center_freq = 2427 },
  79         { .center_freq = 2432 },
  80         { .center_freq = 2437 },
  81         { .center_freq = 2442 },
  82         { .center_freq = 2447 },
  83         { .center_freq = 2452 },
  84         { .center_freq = 2457 },
  85         { .center_freq = 2462 },
  86         { .center_freq = 2467 },
  87         { .center_freq = 2472 },
  88         { .center_freq = 2484 },
  89 };
  90
  91 static void rtl8187_iowrite_async_cb(struct urb *urb)
  92 {
  93         kfree(urb->context);
  94         usb_free_urb(urb);
  95 }
  96
  97 static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
  98                                   void *data, u16 len)
  99 {
 100         struct usb_ctrlrequest *dr;
 101         struct urb *urb;
 102         struct rtl8187_async_write_data {
 103                 u8 data[4];
 104                 struct usb_ctrlrequest dr;
 105         } *buf;
 106         int rc;
 107
 108         buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
 109         if (!buf)
 110                 return;
 111
 112         urb = usb_alloc_urb(0, GFP_ATOMIC);
 113         if (!urb) {
 114                 kfree(buf);
 115                 return;
 116         }
 117
 118         dr = &buf->dr;
 119
 120         dr->bRequestType = RTL8187_REQT_WRITE;
 121         dr->bRequest = RTL8187_REQ_SET_REG;
 122         dr->wValue = addr;
 123         dr->wIndex = 0;
 124         dr->wLength = cpu_to_le16(len);
 125
 126         memcpy(buf, data, len);
 127
 128         usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
 129                              (unsigned char *)dr, buf, len,
 130                              rtl8187_iowrite_async_cb, buf);
 131         rc = usb_submit_urb(urb, GFP_ATOMIC);
 132         if (rc < 0) {
 133                 kfree(buf);
 134                 usb_free_urb(urb);
 135         }
 136 }
 137
 138 static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
 139                                            __le32 *addr, u32 val)
 140 {
 141         __le32 buf = cpu_to_le32(val);
 142
 143         rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
 144                               &buf, sizeof(buf));
 145 }
 146
 147 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
 148 {
 149         struct rtl8187_priv *priv = dev->priv;
 150
 151         data <<= 8;
 152         data |= addr | 0x80;
 153
 154         rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
 155         rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
 156         rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
 157         rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
 158
 159         msleep(1);
 160 }
 161
 162 static void rtl8187_tx_cb(struct urb *urb)
 163 {
 164         struct sk_buff *skb = (struct sk_buff *)urb->context;
 165         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 166         struct ieee80211_hw *hw = info->driver_data[0];
 167         struct rtl8187_priv *priv = hw->priv;
 168
 169         usb_free_urb(info->driver_data[1]);
 170         skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
 171                                           sizeof(struct rtl8187_tx_hdr));
 172         memset(&info->status, 0, sizeof(info->status));
 173         info->flags |= IEEE80211_TX_STAT_ACK;
 174         ieee80211_tx_status_irqsafe(hw, skb);
 175 }
 176
 177 static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 178 {
 179         struct rtl8187_priv *priv = dev->priv;
 180         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 181         struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data;
 182         unsigned int ep;
 183         void *buf;
 184         struct urb *urb;
 185         __le16 rts_dur = 0;
 186         u32 flags;
 187         int rc;
 188
 189         urb = usb_alloc_urb(0, GFP_ATOMIC);
 190         if (!urb) {
 191                 kfree_skb(skb);
 192                 return 0;
 193         }
 194
 195         flags = skb->len;
 196         flags |= RTL818X_TX_DESC_FLAG_NO_ENC;
 197
 198         flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
 199         if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
 200                 flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
 201         if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
 202                 flags |= RTL818X_TX_DESC_FLAG_RTS;
 203                 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 204                 rts_dur = ieee80211_rts_duration(dev, priv->vif,
 205                                                  skb->len, info);
 206         } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
 207                 flags |= RTL818X_TX_DESC_FLAG_CTS;
 208                 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 209         }
 210
 211         if (!priv->is_rtl8187b) {
 212                 struct rtl8187_tx_hdr *hdr =
 213                         (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
 214                 hdr->flags = cpu_to_le32(flags);
 215                 hdr->len = 0;
 216                 hdr->rts_duration = rts_dur;
 217                 hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
 218                 buf = hdr;
 219
 220                 ep = 2;
 221         } else {
 222                 /* fc needs to be calculated before skb_push() */
 223                 unsigned int epmap[4] = { 6, 7, 5, 4 };
 224                 struct ieee80211_hdr *tx_hdr =
 225                         (struct ieee80211_hdr *)(skb->data);
 226                 u16 fc = le16_to_cpu(tx_hdr->frame_control);
 227
 228                 struct rtl8187b_tx_hdr *hdr =
 229                         (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
 230                 struct ieee80211_rate *txrate =
 231                         ieee80211_get_tx_rate(dev, info);
 232                 memset(hdr, 0, sizeof(*hdr));
 233                 hdr->flags = cpu_to_le32(flags);
 234                 hdr->rts_duration = rts_dur;
 235                 hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
 236                 hdr->tx_duration =
 237                         ieee80211_generic_frame_duration(dev, priv->vif,
 238                                                          skb->len, txrate);
 239                 buf = hdr;
 240
 241                 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
 242                         ep = 12;
 243                 else
 244                         ep = epmap[skb_get_queue_mapping(skb)];
 245         }
 246
 247         /* FIXME: The sequence that follows is needed for this driver to
 248          * work with mac80211 since "mac80211: fix TX sequence numbers".
 249          * As with the temporary code in rt2x00, changes will be needed
 250          * to get proper sequence numbers on beacons. In addition, this
 251          * patch places the sequence number in the hardware state, which
 252          * limits us to a single virtual state.
 253          */
 254         if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
 255                 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
 256                         priv->seqno += 0x10;
 257                 ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
 258                 ieee80211hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
 259         }
 260
 261         info->driver_data[0] = dev;
 262         info->driver_data[1] = urb;
 263
 264         usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
 265                           buf, skb->len, rtl8187_tx_cb, skb);
 266         urb->transfer_flags |= URB_ZERO_PACKET;
 267         rc = usb_submit_urb(urb, GFP_ATOMIC);
 268         if (rc < 0) {
 269                 usb_free_urb(urb);
 270                 kfree_skb(skb);
 271         }
 272
 273         return 0;
 274 }
 275
 276 static void rtl8187_rx_cb(struct urb *urb)
 277 {
 278         struct sk_buff *skb = (struct sk_buff *)urb->context;
 279         struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
 280         struct ieee80211_hw *dev = info->dev;
 281         struct rtl8187_priv *priv = dev->priv;
 282         struct ieee80211_rx_status rx_status = { 0 };
 283         int rate, signal;
 284         u32 flags;
 285         u32 quality;
 286
 287         spin_lock(&priv->rx_queue.lock);
 288         if (skb->next)
 289                 __skb_unlink(skb, &priv->rx_queue);
 290         else {
 291                 spin_unlock(&priv->rx_queue.lock);
 292                 return;
 293         }
 294         spin_unlock(&priv->rx_queue.lock);
 295
 296         if (unlikely(urb->status)) {
 297                 usb_free_urb(urb);
 298                 dev_kfree_skb_irq(skb);
 299                 return;
 300         }
 301
 302         skb_put(skb, urb->actual_length);
 303         if (!priv->is_rtl8187b) {
 304                 struct rtl8187_rx_hdr *hdr =
 305                         (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
 306                 flags = le32_to_cpu(hdr->flags);
 307                 signal = hdr->signal & 0x7f;
 308                 rx_status.antenna = (hdr->signal >> 7) & 1;
 309                 rx_status.noise = hdr->noise;
 310                 rx_status.mactime = le64_to_cpu(hdr->mac_time);
 311                 priv->quality = signal;
 312                 rx_status.qual = priv->quality;
 313                 priv->noise = hdr->noise;
 314                 rate = (flags >> 20) & 0xF;
 315                 if (rate > 3) { /* OFDM rate */
 316                         if (signal > 90)
 317                                 signal = 90;
 318                         else if (signal < 25)
 319                                 signal = 25;
 320                         signal = 90 - signal;
 321                 } else {        /* CCK rate */
 322                         if (signal > 95)
 323                                 signal = 95;
 324                         else if (signal < 30)
 325                                 signal = 30;
 326                         signal = 95 - signal;
 327                 }
 328                 rx_status.signal = signal;
 329                 priv->signal = signal;
 330         } else {
 331                 struct rtl8187b_rx_hdr *hdr =
 332                         (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
 333                 /* The Realtek datasheet for the RTL8187B shows that the RX
 334                  * header contains the following quantities: signal quality,
 335                  * RSSI, AGC, the received power in dB, and the measured SNR.
 336                  * In testing, none of these quantities show qualitative
 337                  * agreement with AP signal strength, except for the AGC,
 338                  * which is inversely proportional to the strength of the
 339                  * signal. In the following, the quality and signal strength
 340                  * are derived from the AGC. The arbitrary scaling constants
 341                  * are chosen to make the results close to the values obtained
 342                  * for a BCM4312 using b43 as the driver. The noise is ignored
 343                  * for now.
 344                  */
 345                 flags = le32_to_cpu(hdr->flags);
 346                 quality = 170 - hdr->agc;
 347                 if (quality > 100)
 348                         quality = 100;
 349                 signal = 14 - hdr->agc / 2;
 350                 rx_status.qual = quality;
 351                 priv->quality = quality;
 352                 rx_status.signal = signal;
 353                 priv->signal = signal;
 354                 rx_status.antenna = (hdr->rssi >> 7) & 1;
 355                 rx_status.mactime = le64_to_cpu(hdr->mac_time);
 356                 rate = (flags >> 20) & 0xF;
 357         }
 358
 359         skb_trim(skb, flags & 0x0FFF);
 360         rx_status.rate_idx = rate;
 361         rx_status.freq = dev->conf.channel->center_freq;
 362         rx_status.band = dev->conf.channel->band;
 363         rx_status.flag |= RX_FLAG_TSFT;
 364         if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
 365                 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
 366         ieee80211_rx_irqsafe(dev, skb, &rx_status);
 367
 368         skb = dev_alloc_skb(RTL8187_MAX_RX);
 369         if (unlikely(!skb)) {
 370                 usb_free_urb(urb);
 371                 /* TODO check rx queue length and refill *somewhere* */
 372                 return;
 373         }
 374
 375         info = (struct rtl8187_rx_info *)skb->cb;
 376         info->urb = urb;
 377         info->dev = dev;
 378         urb->transfer_buffer = skb_tail_pointer(skb);
 379         urb->context = skb;
 380         skb_queue_tail(&priv->rx_queue, skb);
 381
 382         usb_submit_urb(urb, GFP_ATOMIC);
 383 }
 384
 385 static int rtl8187_init_urbs(struct ieee80211_hw *dev)
 386 {
 387         struct rtl8187_priv *priv = dev->priv;
 388         struct urb *entry;
 389         struct sk_buff *skb;
 390         struct rtl8187_rx_info *info;
 391
 392         while (skb_queue_len(&priv->rx_queue) < 8) {
 393                 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
 394                 if (!skb)
 395                         break;
 396                 entry = usb_alloc_urb(0, GFP_KERNEL);
 397                 if (!entry) {
 398                         kfree_skb(skb);
 399                         break;
 400                 }
 401                 usb_fill_bulk_urb(entry, priv->udev,
 402                                   usb_rcvbulkpipe(priv->udev,
 403                                   priv->is_rtl8187b ? 3 : 1),
 404                                   skb_tail_pointer(skb),
 405                                   RTL8187_MAX_RX, rtl8187_rx_cb, skb);
 406                 info = (struct rtl8187_rx_info *)skb->cb;
 407                 info->urb = entry;
 408                 info->dev = dev;
 409                 skb_queue_tail(&priv->rx_queue, skb);
 410                 usb_submit_urb(entry, GFP_KERNEL);
 411         }
 412
 413         return 0;
 414 }
 415
 416 static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
 417 {
 418         struct rtl8187_priv *priv = dev->priv;
 419         u8 reg;
 420         int i;
 421
 422         reg = rtl818x_ioread8(priv, &priv->map->CMD);
 423         reg &= (1 << 1);
 424         reg |= RTL818X_CMD_RESET;
 425         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 426
 427         i = 10;
 428         do {
 429                 msleep(2);
 430                 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
 431                       RTL818X_CMD_RESET))
 432                         break;
 433         } while (--i);
 434
 435         if (!i) {
 436                 printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
 437                 return -ETIMEDOUT;
 438         }
 439
 440         /* reload registers from eeprom */
 441         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
 442
 443         i = 10;
 444         do {
 445                 msleep(4);
 446                 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
 447                       RTL818X_EEPROM_CMD_CONFIG))
 448                         break;
 449         } while (--i);
 450
 451         if (!i) {
 452                 printk(KERN_ERR "%s: eeprom reset timeout!\n",
 453                        wiphy_name(dev->wiphy));
 454                 return -ETIMEDOUT;
 455         }
 456
 457         return 0;
 458 }
 459
 460 static int rtl8187_init_hw(struct ieee80211_hw *dev)
 461 {
 462         struct rtl8187_priv *priv = dev->priv;
 463         u8 reg;
 464         int res;
 465
 466         /* reset */
 467         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 468                          RTL818X_EEPROM_CMD_CONFIG);
 469         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 470         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg |
 471                          RTL818X_CONFIG3_ANAPARAM_WRITE);
 472         rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
 473                           RTL8187_RTL8225_ANAPARAM_ON);
 474         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
 475                           RTL8187_RTL8225_ANAPARAM2_ON);
 476         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg &
 477                          ~RTL818X_CONFIG3_ANAPARAM_WRITE);
 478         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 479                          RTL818X_EEPROM_CMD_NORMAL);
 480
 481         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
 482
 483         msleep(200);
 484         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
 485         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
 486         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
 487         msleep(200);
 488
 489         res = rtl8187_cmd_reset(dev);
 490         if (res)
 491                 return res;
 492
 493         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 494         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 495         rtl818x_iowrite8(priv, &priv->map->CONFIG3,
 496                         reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
 497         rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
 498                           RTL8187_RTL8225_ANAPARAM_ON);
 499         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
 500                           RTL8187_RTL8225_ANAPARAM2_ON);
 501         rtl818x_iowrite8(priv, &priv->map->CONFIG3,
 502                         reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
 503         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 504
 505         /* setup card */
 506         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
 507         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
 508
 509         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
 510         rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
 511         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
 512
 513         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 514
 515         rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
 516         reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
 517         reg &= 0x3F;
 518         reg |= 0x80;
 519         rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
 520
 521         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 522
 523         rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
 524         rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
 525         rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
 526
 527         // TODO: set RESP_RATE and BRSR properly
 528         rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
 529         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
 530
 531         /* host_usb_init */
 532         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
 533         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
 534         reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
 535         rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
 536         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
 537         rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
 538         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
 539         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
 540         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
 541         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
 542         msleep(100);
 543
 544         rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
 545         rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
 546         rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
 547         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 548                          RTL818X_EEPROM_CMD_CONFIG);
 549         rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
 550         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 551                          RTL818X_EEPROM_CMD_NORMAL);
 552         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
 553         msleep(100);
 554
 555         priv->rf->init(dev);
 556
 557         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
 558         reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
 559         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
 560         rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
 561         rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
 562         rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
 563         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
 564
 565         return 0;
 566 }
 567
 568 static const u8 rtl8187b_reg_table[][3] = {
 569         {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
 570         {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
 571         {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
 572         {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},
 573
 574         {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
 575         {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
 576         {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xE0, 0xFF, 1}, {0xE1, 0x0F, 1},
 577         {0xE2, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, {0xF2, 0x02, 1},
 578         {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, {0xF6, 0x06, 1},
 579         {0xF7, 0x07, 1}, {0xF8, 0x08, 1},
 580
 581         {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
 582         {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
 583         {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
 584         {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
 585         {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
 586         {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
 587         {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, {0x72, 0x56, 2},
 588         {0x73, 0x9A, 2},
 589
 590         {0x34, 0xF0, 0}, {0x35, 0x0F, 0}, {0x5B, 0x40, 0}, {0x84, 0x88, 0},
 591         {0x85, 0x24, 0}, {0x88, 0x54, 0}, {0x8B, 0xB8, 0}, {0x8C, 0x07, 0},
 592         {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, {0x95, 0x12, 0}, {0x96, 0x00, 0},
 593         {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, {0x9F, 0x10, 0}, {0xB4, 0x22, 0},
 594         {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, {0xEE, 0x00, 0}, {0x91, 0x03, 0},
 595
 596         {0x4C, 0x00, 2}, {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0},
 597         {0x8E, 0x08, 0}, {0x8F, 0x00, 0}
 598 };
 599
 600 static int rtl8187b_init_hw(struct ieee80211_hw *dev)
 601 {
 602         struct rtl8187_priv *priv = dev->priv;
 603         int res, i;
 604         u8 reg;
 605
 606         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 607                          RTL818X_EEPROM_CMD_CONFIG);
 608
 609         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 610         reg |= RTL818X_CONFIG3_ANAPARAM_WRITE | RTL818X_CONFIG3_GNT_SELECT;
 611         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 612         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
 613                           RTL8187B_RTL8225_ANAPARAM2_ON);
 614         rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
 615                           RTL8187B_RTL8225_ANAPARAM_ON);
 616         rtl818x_iowrite8(priv, &priv->map->ANAPARAM3,
 617                          RTL8187B_RTL8225_ANAPARAM3_ON);
 618
 619         rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
 620         reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
 621         rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
 622         rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));
 623
 624         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 625         reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
 626         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 627
 628         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 629                          RTL818X_EEPROM_CMD_NORMAL);
 630
 631         res = rtl8187_cmd_reset(dev);
 632         if (res)
 633                 return res;
 634
 635         rtl818x_iowrite16(priv, (__le16 *)0xFF2D, 0x0FFF);
 636         reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
 637         reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
 638         rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
 639         reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
 640         reg |= RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT |
 641                RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
 642         rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
 643
 644         rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
 645         reg = rtl818x_ioread8(priv, &priv->map->RATE_FALLBACK);
 646         reg |= RTL818X_RATE_FALLBACK_ENABLE;
 647         rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, reg);
 648
 649         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
 650         rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
 651         rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);
 652
 653         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 654                          RTL818X_EEPROM_CMD_CONFIG);
 655         reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
 656         rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
 657         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 658                          RTL818X_EEPROM_CMD_NORMAL);
 659
 660         rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
 661         for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
 662                 rtl818x_iowrite8_idx(priv,
 663                                      (u8 *)(uintptr_t)
 664                                      (rtl8187b_reg_table[i][0] | 0xFF00),
 665                                      rtl8187b_reg_table[i][1],
 666                                      rtl8187b_reg_table[i][2]);
 667         }
 668
 669         rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
 670         rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
 671
 672         rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
 673         rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
 674         rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);
 675
 676         rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);
 677
 678         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
 679
 680         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 681                          RTL818X_EEPROM_CMD_CONFIG);
 682         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 683         reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
 684         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 685         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 686                          RTL818X_EEPROM_CMD_NORMAL);
 687
 688         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
 689         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
 690         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
 691         msleep(1100);
 692
 693         priv->rf->init(dev);
 694
 695         reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
 696         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 697         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
 698
 699         rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
 700         rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
 701         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
 702         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
 703         rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
 704         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
 705         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
 706
 707         reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
 708         rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
 709         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
 710         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
 711         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
 712         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
 713         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
 714         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
 715         rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
 716         rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
 717         rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
 718         rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
 719         rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);
 720
 721         rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);
 722
 723         rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);
 724
 725         return 0;
 726 }
 727
 728 static int rtl8187_start(struct ieee80211_hw *dev)
 729 {
 730         struct rtl8187_priv *priv = dev->priv;
 731         u32 reg;
 732         int ret;
 733
 734         ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
 735                                      rtl8187b_init_hw(dev);
 736         if (ret)
 737                 return ret;
 738
 739         mutex_lock(&priv->conf_mutex);
 740         if (priv->is_rtl8187b) {
 741                 reg = RTL818X_RX_CONF_MGMT |
 742                       RTL818X_RX_CONF_DATA |
 743                       RTL818X_RX_CONF_BROADCAST |
 744                       RTL818X_RX_CONF_NICMAC |
 745                       RTL818X_RX_CONF_BSSID |
 746                       (7 << 13 /* RX FIFO threshold NONE */) |
 747                       (7 << 10 /* MAX RX DMA */) |
 748                       RTL818X_RX_CONF_RX_AUTORESETPHY |
 749                       RTL818X_RX_CONF_ONLYERLPKT |
 750                       RTL818X_RX_CONF_MULTICAST;
 751                 priv->rx_conf = reg;
 752                 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
 753
 754                 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
 755                                   RTL818X_TX_CONF_HW_SEQNUM |
 756                                   RTL818X_TX_CONF_DISREQQSIZE |
 757                                   (7 << 8  /* short retry limit */) |
 758                                   (7 << 0  /* long retry limit */) |
 759                                   (7 << 21 /* MAX TX DMA */));
 760                 rtl8187_init_urbs(dev);
 761                 mutex_unlock(&priv->conf_mutex);
 762                 return 0;
 763         }
 764
 765         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
 766
 767         rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
 768         rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
 769
 770         rtl8187_init_urbs(dev);
 771
 772         reg = RTL818X_RX_CONF_ONLYERLPKT |
 773               RTL818X_RX_CONF_RX_AUTORESETPHY |
 774               RTL818X_RX_CONF_BSSID |
 775               RTL818X_RX_CONF_MGMT |
 776               RTL818X_RX_CONF_DATA |
 777               (7 << 13 /* RX FIFO threshold NONE */) |
 778               (7 << 10 /* MAX RX DMA */) |
 779               RTL818X_RX_CONF_BROADCAST |
 780               RTL818X_RX_CONF_NICMAC;
 781
 782         priv->rx_conf = reg;
 783         rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
 784
 785         reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
 786         reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
 787         reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
 788         rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
 789
 790         reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
 791         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
 792         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
 793         reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
 794         rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
 795
 796         reg  = RTL818X_TX_CONF_CW_MIN |
 797                (7 << 21 /* MAX TX DMA */) |
 798                RTL818X_TX_CONF_NO_ICV;
 799         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
 800
 801         reg = rtl818x_ioread8(priv, &priv->map->CMD);
 802         reg |= RTL818X_CMD_TX_ENABLE;
 803         reg |= RTL818X_CMD_RX_ENABLE;
 804         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 805         mutex_unlock(&priv->conf_mutex);
 806
 807         return 0;
 808 }
 809
 810 static void rtl8187_stop(struct ieee80211_hw *dev)
 811 {
 812         struct rtl8187_priv *priv = dev->priv;
 813         struct rtl8187_rx_info *info;
 814         struct sk_buff *skb;
 815         u32 reg;
 816
 817         mutex_lock(&priv->conf_mutex);
 818         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
 819
 820         reg = rtl818x_ioread8(priv, &priv->map->CMD);
 821         reg &= ~RTL818X_CMD_TX_ENABLE;
 822         reg &= ~RTL818X_CMD_RX_ENABLE;
 823         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 824
 825         priv->rf->stop(dev);
 826
 827         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 828         reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
 829         rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
 830         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 831
 832         while ((skb = skb_dequeue(&priv->rx_queue))) {
 833                 info = (struct rtl8187_rx_info *)skb->cb;
 834                 usb_kill_urb(info->urb);
 835                 kfree_skb(skb);
 836         }
 837         mutex_unlock(&priv->conf_mutex);
 838 }
 839
 840 static int rtl8187_add_interface(struct ieee80211_hw *dev,
 841                                  struct ieee80211_if_init_conf *conf)
 842 {
 843         struct rtl8187_priv *priv = dev->priv;
 844         int i;
 845
 846         if (priv->mode != NL80211_IFTYPE_MONITOR)
 847                 return -EOPNOTSUPP;
 848
 849         switch (conf->type) {
 850         case NL80211_IFTYPE_STATION:
 851                 priv->mode = conf->type;
 852                 break;
 853         default:
 854                 return -EOPNOTSUPP;
 855         }
 856
 857         mutex_lock(&priv->conf_mutex);
 858         priv->vif = conf->vif;
 859
 860         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 861         for (i = 0; i < ETH_ALEN; i++)
 862                 rtl818x_iowrite8(priv, &priv->map->MAC[i],
 863                                  ((u8 *)conf->mac_addr)[i]);
 864         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 865
 866         mutex_unlock(&priv->conf_mutex);
 867         return 0;
 868 }
 869
 870 static void rtl8187_remove_interface(struct ieee80211_hw *dev,
 871                                      struct ieee80211_if_init_conf *conf)
 872 {
 873         struct rtl8187_priv *priv = dev->priv;
 874         mutex_lock(&priv->conf_mutex);
 875         priv->mode = NL80211_IFTYPE_MONITOR;
 876         priv->vif = NULL;
 877         mutex_unlock(&priv->conf_mutex);
 878 }
 879
 880 static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
 881 {
 882         struct rtl8187_priv *priv = dev->priv;
 883         u32 reg;
 884
 885         mutex_lock(&priv->conf_mutex);
 886         reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
 887         /* Enable TX loopback on MAC level to avoid TX during channel
 888          * changes, as this has be seen to causes problems and the
 889          * card will stop work until next reset
 890          */
 891         rtl818x_iowrite32(priv, &priv->map->TX_CONF,
 892                           reg | RTL818X_TX_CONF_LOOPBACK_MAC);
 893         msleep(10);
 894         priv->rf->set_chan(dev, conf);
 895         msleep(10);
 896         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
 897
 898         if (!priv->is_rtl8187b) {
 899                 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
 900
 901                 if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
 902                         rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
 903                         rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
 904                         rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
 905                         rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
 906                 } else {
 907                         rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
 908                         rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
 909                         rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
 910                         rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
 911                 }
 912         }
 913
 914         rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
 915         rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
 916         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
 917         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
 918         mutex_unlock(&priv->conf_mutex);
 919         return 0;
 920 }
 921
 922 static int rtl8187_config_interface(struct ieee80211_hw *dev,
 923                                     struct ieee80211_vif *vif,
 924                                     struct ieee80211_if_conf *conf)
 925 {
 926         struct rtl8187_priv *priv = dev->priv;
 927         int i;
 928         u8 reg;
 929
 930         mutex_lock(&priv->conf_mutex);
 931         for (i = 0; i < ETH_ALEN; i++)
 932                 rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
 933
 934         if (is_valid_ether_addr(conf->bssid)) {
 935                 reg = RTL818X_MSR_INFRA;
 936                 if (priv->is_rtl8187b)
 937                         reg |= RTL818X_MSR_ENEDCA;
 938                 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
 939         } else {
 940                 reg = RTL818X_MSR_NO_LINK;
 941                 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
 942         }
 943
 944         mutex_unlock(&priv->conf_mutex);
 945         return 0;
 946 }
 947
 948 static void rtl8187_configure_filter(struct ieee80211_hw *dev,
 949                                      unsigned int changed_flags,
 950                                      unsigned int *total_flags,
 951                                      int mc_count, struct dev_addr_list *mclist)
 952 {
 953         struct rtl8187_priv *priv = dev->priv;
 954
 955         if (changed_flags & FIF_FCSFAIL)
 956                 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
 957         if (changed_flags & FIF_CONTROL)
 958                 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
 959         if (changed_flags & FIF_OTHER_BSS)
 960                 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
 961         if (*total_flags & FIF_ALLMULTI || mc_count > 0)
 962                 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
 963         else
 964                 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
 965
 966         *total_flags = 0;
 967
 968         if (priv->rx_conf & RTL818X_RX_CONF_FCS)
 969                 *total_flags |= FIF_FCSFAIL;
 970         if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
 971                 *total_flags |= FIF_CONTROL;
 972         if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
 973                 *total_flags |= FIF_OTHER_BSS;
 974         if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
 975                 *total_flags |= FIF_ALLMULTI;
 976
 977         rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
 978 }
 979
 980 static const struct ieee80211_ops rtl8187_ops = {
 981         .tx                     = rtl8187_tx,
 982         .start                  = rtl8187_start,
 983         .stop                   = rtl8187_stop,
 984         .add_interface          = rtl8187_add_interface,
 985         .remove_interface       = rtl8187_remove_interface,
 986         .config                 = rtl8187_config,
 987         .config_interface       = rtl8187_config_interface,
 988         .configure_filter       = rtl8187_configure_filter,
 989 };
 990
 991 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
 992 {
 993         struct ieee80211_hw *dev = eeprom->data;
 994         struct rtl8187_priv *priv = dev->priv;
 995         u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
 996
 997         eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
 998         eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
 999         eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
1000         eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
1001 }
1002
1003 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
1004 {
1005         struct ieee80211_hw *dev = eeprom->data;
1006         struct rtl8187_priv *priv = dev->priv;
1007         u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
1008
1009         if (eeprom->reg_data_in)
1010                 reg |= RTL818X_EEPROM_CMD_WRITE;
1011         if (eeprom->reg_data_out)
1012                 reg |= RTL818X_EEPROM_CMD_READ;
1013         if (eeprom->reg_data_clock)
1014                 reg |= RTL818X_EEPROM_CMD_CK;
1015         if (eeprom->reg_chip_select)
1016                 reg |= RTL818X_EEPROM_CMD_CS;
1017
1018         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
1019         udelay(10);
1020 }
1021
1022 static int __devinit rtl8187_probe(struct usb_interface *intf,
1023                                    const struct usb_device_id *id)
1024 {
1025         struct usb_device *udev = interface_to_usbdev(intf);
1026         struct ieee80211_hw *dev;
1027         struct rtl8187_priv *priv;
1028         struct eeprom_93cx6 eeprom;
1029         struct ieee80211_channel *channel;
1030         const char *chip_name;
1031         u16 txpwr, reg;
1032         int err, i;
1033         DECLARE_MAC_BUF(mac);
1034
1035         dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
1036         if (!dev) {
1037                 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
1038                 return -ENOMEM;
1039         }
1040
1041         priv = dev->priv;
1042         priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
1043
1044         SET_IEEE80211_DEV(dev, &intf->dev);
1045         usb_set_intfdata(intf, dev);
1046         priv->udev = udev;
1047
1048         usb_get_dev(udev);
1049
1050         skb_queue_head_init(&priv->rx_queue);
1051
1052         BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
1053         BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
1054
1055         memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
1056         memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
1057         priv->map = (struct rtl818x_csr *)0xFF00;
1058
1059         priv->band.band = IEEE80211_BAND_2GHZ;
1060         priv->band.channels = priv->channels;
1061         priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
1062         priv->band.bitrates = priv->rates;
1063         priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1064         dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
1065
1066
1067         priv->mode = NL80211_IFTYPE_MONITOR;
1068         dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1069                      IEEE80211_HW_RX_INCLUDES_FCS;
1070
1071         eeprom.data = dev;
1072         eeprom.register_read = rtl8187_eeprom_register_read;
1073         eeprom.register_write = rtl8187_eeprom_register_write;
1074         if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1075                 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1076         else
1077                 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1078
1079         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1080         udelay(10);
1081
1082         eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
1083                                (__le16 __force *)dev->wiphy->perm_addr, 3);
1084         if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
1085                 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
1086                        "generated MAC address\n");
1087                 random_ether_addr(dev->wiphy->perm_addr);
1088         }
1089
1090         channel = priv->channels;
1091         for (i = 0; i < 3; i++) {
1092                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
1093                                   &txpwr);
1094                 (*channel++).hw_value = txpwr & 0xFF;
1095                 (*channel++).hw_value = txpwr >> 8;
1096         }
1097         for (i = 0; i < 2; i++) {
1098                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
1099                                   &txpwr);
1100                 (*channel++).hw_value = txpwr & 0xFF;
1101                 (*channel++).hw_value = txpwr >> 8;
1102         }
1103
1104         eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
1105                           &priv->txpwr_base);
1106
1107         reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
1108         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
1109         /* 0 means asic B-cut, we should use SW 3 wire
1110          * bit-by-bit banging for radio. 1 means we can use
1111          * USB specific request to write radio registers */
1112         priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
1113         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
1114         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1115
1116         if (!priv->is_rtl8187b) {
1117                 u32 reg32;
1118                 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1119                 reg32 &= RTL818X_TX_CONF_HWVER_MASK;
1120                 switch (reg32) {
1121                 case RTL818X_TX_CONF_R8187vD_B:
1122                         /* Some RTL8187B devices have a USB ID of 0x8187
1123                          * detect them here */
1124                         chip_name = "RTL8187BvB(early)";
1125                         priv->is_rtl8187b = 1;
1126                         priv->hw_rev = RTL8187BvB;
1127                         break;
1128                 case RTL818X_TX_CONF_R8187vD:
1129                         chip_name = "RTL8187vD";
1130                         break;
1131                 default:
1132                         chip_name = "RTL8187vB (default)";
1133                 }
1134        } else {
1135                 /*
1136                  * Force USB request to write radio registers for 8187B, Realtek
1137                  * only uses it in their sources
1138                  */
1139                 /*if (priv->asic_rev == 0) {
1140                         printk(KERN_WARNING "rtl8187: Forcing use of USB "
1141                                "requests to write to radio registers\n");
1142                         priv->asic_rev = 1;
1143                 }*/
1144                 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
1145                 case RTL818X_R8187B_B:
1146                         chip_name = "RTL8187BvB";
1147                         priv->hw_rev = RTL8187BvB;
1148                         break;
1149                 case RTL818X_R8187B_D:
1150                         chip_name = "RTL8187BvD";
1151                         priv->hw_rev = RTL8187BvD;
1152                         break;
1153                 case RTL818X_R8187B_E:
1154                         chip_name = "RTL8187BvE";
1155                         priv->hw_rev = RTL8187BvE;
1156                         break;
1157                 default:
1158                         chip_name = "RTL8187BvB (default)";
1159                         priv->hw_rev = RTL8187BvB;
1160                 }
1161         }
1162
1163         if (!priv->is_rtl8187b) {
1164                 for (i = 0; i < 2; i++) {
1165                         eeprom_93cx6_read(&eeprom,
1166                                           RTL8187_EEPROM_TXPWR_CHAN_6 + i,
1167                                           &txpwr);
1168                         (*channel++).hw_value = txpwr & 0xFF;
1169                         (*channel++).hw_value = txpwr >> 8;
1170                 }
1171         } else {
1172                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
1173                                   &txpwr);
1174                 (*channel++).hw_value = txpwr & 0xFF;
1175
1176                 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
1177                 (*channel++).hw_value = txpwr & 0xFF;
1178
1179                 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
1180                 (*channel++).hw_value = txpwr & 0xFF;
1181                 (*channel++).hw_value = txpwr >> 8;
1182         }
1183
1184         if (priv->is_rtl8187b) {
1185                 printk(KERN_WARNING "rtl8187: 8187B chip detected. Support "
1186                         "is EXPERIMENTAL, and could damage your\n"
1187                         "         hardware, use at your own risk\n");
1188                 dev->flags |= IEEE80211_HW_SIGNAL_DBM;
1189         } else {
1190                 dev->flags |= IEEE80211_HW_SIGNAL_UNSPEC;
1191                 dev->max_signal = 65;
1192         }
1193
1194         dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1195
1196         if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
1197                 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
1198                        " info!\n");
1199
1200         priv->rf = rtl8187_detect_rf(dev);
1201         dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
1202                                   sizeof(struct rtl8187_tx_hdr) :
1203                                   sizeof(struct rtl8187b_tx_hdr);
1204         if (!priv->is_rtl8187b)
1205                 dev->queues = 1;
1206         else
1207                 dev->queues = 4;
1208
1209         err = ieee80211_register_hw(dev);
1210         if (err) {
1211                 printk(KERN_ERR "rtl8187: Cannot register device\n");
1212                 goto err_free_dev;
1213         }
1214         mutex_init(&priv->conf_mutex);
1215
1216         printk(KERN_INFO "%s: hwaddr %s, %s V%d + %s\n",
1217                wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
1218                chip_name, priv->asic_rev, priv->rf->name);
1219
1220         return 0;
1221
1222  err_free_dev:
1223         ieee80211_free_hw(dev);
1224         usb_set_intfdata(intf, NULL);
1225         usb_put_dev(udev);
1226         return err;
1227 }
1228
1229 static void __devexit rtl8187_disconnect(struct usb_interface *intf)
1230 {
1231         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1232         struct rtl8187_priv *priv;
1233
1234         if (!dev)
1235                 return;
1236
1237         ieee80211_unregister_hw(dev);
1238
1239         priv = dev->priv;
1240         usb_put_dev(interface_to_usbdev(intf));
1241         ieee80211_free_hw(dev);
1242 }
1243
1244 static struct usb_driver rtl8187_driver = {
1245         .name           = KBUILD_MODNAME,
1246         .id_table       = rtl8187_table,
1247         .probe          = rtl8187_probe,
1248         .disconnect     = __devexit_p(rtl8187_disconnect),
1249 };
1250
1251 static int __init rtl8187_init(void)
1252 {
1253         return usb_register(&rtl8187_driver);
1254 }
1255
1256 static void __exit rtl8187_exit(void)
1257 {
1258         usb_deregister(&rtl8187_driver);
1259 }
1260
1261 module_init(rtl8187_init);
1262 module_exit(rtl8187_exit);