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         /* Realtek */
  35         {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
  36         {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
  37         {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
  38         /* Netgear */
  39         {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
  40         {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
  41         /* HP */
  42         {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
  43         /* Sitecom */
  44         {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
  45         {}
  46 };
  47
  48 MODULE_DEVICE_TABLE(usb, rtl8187_table);
  49
  50 static const struct ieee80211_rate rtl818x_rates[] = {
  51         { .bitrate = 10, .hw_value = 0, },
  52         { .bitrate = 20, .hw_value = 1, },
  53         { .bitrate = 55, .hw_value = 2, },
  54         { .bitrate = 110, .hw_value = 3, },
  55         { .bitrate = 60, .hw_value = 4, },
  56         { .bitrate = 90, .hw_value = 5, },
  57         { .bitrate = 120, .hw_value = 6, },
  58         { .bitrate = 180, .hw_value = 7, },
  59         { .bitrate = 240, .hw_value = 8, },
  60         { .bitrate = 360, .hw_value = 9, },
  61         { .bitrate = 480, .hw_value = 10, },
  62         { .bitrate = 540, .hw_value = 11, },
  63 };
  64
  65 static const struct ieee80211_channel rtl818x_channels[] = {
  66         { .center_freq = 2412 },
  67         { .center_freq = 2417 },
  68         { .center_freq = 2422 },
  69         { .center_freq = 2427 },
  70         { .center_freq = 2432 },
  71         { .center_freq = 2437 },
  72         { .center_freq = 2442 },
  73         { .center_freq = 2447 },
  74         { .center_freq = 2452 },
  75         { .center_freq = 2457 },
  76         { .center_freq = 2462 },
  77         { .center_freq = 2467 },
  78         { .center_freq = 2472 },
  79         { .center_freq = 2484 },
  80 };
  81
  82 static void rtl8187_iowrite_async_cb(struct urb *urb)
  83 {
  84         kfree(urb->context);
  85         usb_free_urb(urb);
  86 }
  87
  88 static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
  89                                   void *data, u16 len)
  90 {
  91         struct usb_ctrlrequest *dr;
  92         struct urb *urb;
  93         struct rtl8187_async_write_data {
  94                 u8 data[4];
  95                 struct usb_ctrlrequest dr;
  96         } *buf;
  97         int rc;
  98
  99         buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
 100         if (!buf)
 101                 return;
 102
 103         urb = usb_alloc_urb(0, GFP_ATOMIC);
 104         if (!urb) {
 105                 kfree(buf);
 106                 return;
 107         }
 108
 109         dr = &buf->dr;
 110
 111         dr->bRequestType = RTL8187_REQT_WRITE;
 112         dr->bRequest = RTL8187_REQ_SET_REG;
 113         dr->wValue = addr;
 114         dr->wIndex = 0;
 115         dr->wLength = cpu_to_le16(len);
 116
 117         memcpy(buf, data, len);
 118
 119         usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
 120                              (unsigned char *)dr, buf, len,
 121                              rtl8187_iowrite_async_cb, buf);
 122         rc = usb_submit_urb(urb, GFP_ATOMIC);
 123         if (rc < 0) {
 124                 kfree(buf);
 125                 usb_free_urb(urb);
 126         }
 127 }
 128
 129 static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
 130                                            __le32 *addr, u32 val)
 131 {
 132         __le32 buf = cpu_to_le32(val);
 133
 134         rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
 135                               &buf, sizeof(buf));
 136 }
 137
 138 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
 139 {
 140         struct rtl8187_priv *priv = dev->priv;
 141
 142         data <<= 8;
 143         data |= addr | 0x80;
 144
 145         rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
 146         rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
 147         rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
 148         rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
 149
 150         msleep(1);
 151 }
 152
 153 static void rtl8187_tx_cb(struct urb *urb)
 154 {
 155         struct sk_buff *skb = (struct sk_buff *)urb->context;
 156         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 157         struct ieee80211_hw *hw = info->driver_data[0];
 158         struct rtl8187_priv *priv = hw->priv;
 159
 160         usb_free_urb(info->driver_data[1]);
 161         skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
 162                                           sizeof(struct rtl8187_tx_hdr));
 163         memset(&info->status, 0, sizeof(info->status));
 164         info->flags |= IEEE80211_TX_STAT_ACK;
 165         ieee80211_tx_status_irqsafe(hw, skb);
 166 }
 167
 168 static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 169 {
 170         struct rtl8187_priv *priv = dev->priv;
 171         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 172         unsigned int ep;
 173         void *buf;
 174         struct urb *urb;
 175         __le16 rts_dur = 0;
 176         u32 flags;
 177         int rc;
 178
 179         urb = usb_alloc_urb(0, GFP_ATOMIC);
 180         if (!urb) {
 181                 kfree_skb(skb);
 182                 return 0;
 183         }
 184
 185         flags = skb->len;
 186         flags |= RTL8187_TX_FLAG_NO_ENCRYPT;
 187
 188         flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
 189         if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
 190                 flags |= RTL8187_TX_FLAG_MORE_FRAG;
 191         if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
 192                 flags |= RTL8187_TX_FLAG_RTS;
 193                 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 194                 rts_dur = ieee80211_rts_duration(dev, priv->vif,
 195                                                  skb->len, info);
 196         } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
 197                 flags |= RTL8187_TX_FLAG_CTS;
 198                 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 199         }
 200
 201         if (!priv->is_rtl8187b) {
 202                 struct rtl8187_tx_hdr *hdr =
 203                         (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
 204                 hdr->flags = cpu_to_le32(flags);
 205                 hdr->len = 0;
 206                 hdr->rts_duration = rts_dur;
 207                 hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
 208                 buf = hdr;
 209
 210                 ep = 2;
 211         } else {
 212                 /* fc needs to be calculated before skb_push() */
 213                 unsigned int epmap[4] = { 6, 7, 5, 4 };
 214                 struct ieee80211_hdr *tx_hdr =
 215                         (struct ieee80211_hdr *)(skb->data);
 216                 u16 fc = le16_to_cpu(tx_hdr->frame_control);
 217
 218                 struct rtl8187b_tx_hdr *hdr =
 219                         (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
 220                 struct ieee80211_rate *txrate =
 221                         ieee80211_get_tx_rate(dev, info);
 222                 memset(hdr, 0, sizeof(*hdr));
 223                 hdr->flags = cpu_to_le32(flags);
 224                 hdr->rts_duration = rts_dur;
 225                 hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
 226                 hdr->tx_duration =
 227                         ieee80211_generic_frame_duration(dev, priv->vif,
 228                                                          skb->len, txrate);
 229                 buf = hdr;
 230
 231                 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
 232                         ep = 12;
 233                 else
 234                         ep = epmap[skb_get_queue_mapping(skb)];
 235         }
 236
 237         info->driver_data[0] = dev;
 238         info->driver_data[1] = urb;
 239
 240         usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
 241                           buf, skb->len, rtl8187_tx_cb, skb);
 242         rc = usb_submit_urb(urb, GFP_ATOMIC);
 243         if (rc < 0) {
 244                 usb_free_urb(urb);
 245                 kfree_skb(skb);
 246         }
 247
 248         return 0;
 249 }
 250
 251 static void rtl8187_rx_cb(struct urb *urb)
 252 {
 253         struct sk_buff *skb = (struct sk_buff *)urb->context;
 254         struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
 255         struct ieee80211_hw *dev = info->dev;
 256         struct rtl8187_priv *priv = dev->priv;
 257         struct ieee80211_rx_status rx_status = { 0 };
 258         int rate, signal;
 259         u32 flags;
 260
 261         spin_lock(&priv->rx_queue.lock);
 262         if (skb->next)
 263                 __skb_unlink(skb, &priv->rx_queue);
 264         else {
 265                 spin_unlock(&priv->rx_queue.lock);
 266                 return;
 267         }
 268         spin_unlock(&priv->rx_queue.lock);
 269
 270         if (unlikely(urb->status)) {
 271                 usb_free_urb(urb);
 272                 dev_kfree_skb_irq(skb);
 273                 return;
 274         }
 275
 276         skb_put(skb, urb->actual_length);
 277         if (!priv->is_rtl8187b) {
 278                 struct rtl8187_rx_hdr *hdr =
 279                         (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
 280                 flags = le32_to_cpu(hdr->flags);
 281                 signal = hdr->signal & 0x7f;
 282                 rx_status.antenna = (hdr->signal >> 7) & 1;
 283                 rx_status.signal = signal;
 284                 rx_status.noise = hdr->noise;
 285                 rx_status.mactime = le64_to_cpu(hdr->mac_time);
 286                 priv->signal = signal;
 287                 priv->quality = signal;
 288                 priv->noise = hdr->noise;
 289         } else {
 290                 struct rtl8187b_rx_hdr *hdr =
 291                         (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
 292                 flags = le32_to_cpu(hdr->flags);
 293                 signal = hdr->agc >> 1;
 294                 rx_status.antenna = (hdr->signal >> 7) & 1;
 295                 rx_status.signal = 64 - min(hdr->noise, (u8)64);
 296                 rx_status.noise = hdr->noise;
 297                 rx_status.mactime = le64_to_cpu(hdr->mac_time);
 298                 priv->signal = hdr->signal;
 299                 priv->quality = hdr->agc >> 1;
 300                 priv->noise = hdr->noise;
 301         }
 302
 303         skb_trim(skb, flags & 0x0FFF);
 304         rate = (flags >> 20) & 0xF;
 305         if (rate > 3) { /* OFDM rate */
 306                 if (signal > 90)
 307                         signal = 90;
 308                 else if (signal < 25)
 309                         signal = 25;
 310                 signal = 90 - signal;
 311         } else {        /* CCK rate */
 312                 if (signal > 95)
 313                         signal = 95;
 314                 else if (signal < 30)
 315                         signal = 30;
 316                 signal = 95 - signal;
 317         }
 318
 319         rx_status.qual = priv->quality;
 320         rx_status.signal = signal;
 321         rx_status.rate_idx = rate;
 322         rx_status.freq = dev->conf.channel->center_freq;
 323         rx_status.band = dev->conf.channel->band;
 324         rx_status.flag |= RX_FLAG_TSFT;
 325         if (flags & (1 << 13))
 326                 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
 327         ieee80211_rx_irqsafe(dev, skb, &rx_status);
 328
 329         skb = dev_alloc_skb(RTL8187_MAX_RX);
 330         if (unlikely(!skb)) {
 331                 usb_free_urb(urb);
 332                 /* TODO check rx queue length and refill *somewhere* */
 333                 return;
 334         }
 335
 336         info = (struct rtl8187_rx_info *)skb->cb;
 337         info->urb = urb;
 338         info->dev = dev;
 339         urb->transfer_buffer = skb_tail_pointer(skb);
 340         urb->context = skb;
 341         skb_queue_tail(&priv->rx_queue, skb);
 342
 343         usb_submit_urb(urb, GFP_ATOMIC);
 344 }
 345
 346 static int rtl8187_init_urbs(struct ieee80211_hw *dev)
 347 {
 348         struct rtl8187_priv *priv = dev->priv;
 349         struct urb *entry;
 350         struct sk_buff *skb;
 351         struct rtl8187_rx_info *info;
 352
 353         while (skb_queue_len(&priv->rx_queue) < 8) {
 354                 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
 355                 if (!skb)
 356                         break;
 357                 entry = usb_alloc_urb(0, GFP_KERNEL);
 358                 if (!entry) {
 359                         kfree_skb(skb);
 360                         break;
 361                 }
 362                 usb_fill_bulk_urb(entry, priv->udev,
 363                                   usb_rcvbulkpipe(priv->udev,
 364                                   priv->is_rtl8187b ? 3 : 1),
 365                                   skb_tail_pointer(skb),
 366                                   RTL8187_MAX_RX, rtl8187_rx_cb, skb);
 367                 info = (struct rtl8187_rx_info *)skb->cb;
 368                 info->urb = entry;
 369                 info->dev = dev;
 370                 skb_queue_tail(&priv->rx_queue, skb);
 371                 usb_submit_urb(entry, GFP_KERNEL);
 372         }
 373
 374         return 0;
 375 }
 376
 377 static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
 378 {
 379         struct rtl8187_priv *priv = dev->priv;
 380         u8 reg;
 381         int i;
 382
 383         reg = rtl818x_ioread8(priv, &priv->map->CMD);
 384         reg &= (1 << 1);
 385         reg |= RTL818X_CMD_RESET;
 386         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 387
 388         i = 10;
 389         do {
 390                 msleep(2);
 391                 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
 392                       RTL818X_CMD_RESET))
 393                         break;
 394         } while (--i);
 395
 396         if (!i) {
 397                 printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
 398                 return -ETIMEDOUT;
 399         }
 400
 401         /* reload registers from eeprom */
 402         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
 403
 404         i = 10;
 405         do {
 406                 msleep(4);
 407                 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
 408                       RTL818X_EEPROM_CMD_CONFIG))
 409                         break;
 410         } while (--i);
 411
 412         if (!i) {
 413                 printk(KERN_ERR "%s: eeprom reset timeout!\n",
 414                        wiphy_name(dev->wiphy));
 415                 return -ETIMEDOUT;
 416         }
 417
 418         return 0;
 419 }
 420
 421 static int rtl8187_init_hw(struct ieee80211_hw *dev)
 422 {
 423         struct rtl8187_priv *priv = dev->priv;
 424         u8 reg;
 425         int res;
 426
 427         /* reset */
 428         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 429                          RTL818X_EEPROM_CMD_CONFIG);
 430         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 431         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg |
 432                          RTL818X_CONFIG3_ANAPARAM_WRITE);
 433         rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
 434         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
 435         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg &
 436                          ~RTL818X_CONFIG3_ANAPARAM_WRITE);
 437         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 438                          RTL818X_EEPROM_CMD_NORMAL);
 439
 440         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
 441
 442         msleep(200);
 443         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
 444         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
 445         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
 446         msleep(200);
 447
 448         res = rtl8187_cmd_reset(dev);
 449         if (res)
 450                 return res;
 451
 452         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 453         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 454         rtl818x_iowrite8(priv, &priv->map->CONFIG3,
 455                         reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
 456         rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
 457         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
 458         rtl818x_iowrite8(priv, &priv->map->CONFIG3,
 459                         reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
 460         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 461
 462         /* setup card */
 463         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
 464         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
 465
 466         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
 467         rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
 468         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
 469
 470         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 471
 472         rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
 473         reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
 474         reg &= 0x3F;
 475         reg |= 0x80;
 476         rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
 477
 478         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 479
 480         rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
 481         rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
 482         rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
 483
 484         // TODO: set RESP_RATE and BRSR properly
 485         rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
 486         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
 487
 488         /* host_usb_init */
 489         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
 490         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
 491         reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
 492         rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
 493         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
 494         rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
 495         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
 496         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
 497         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
 498         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
 499         msleep(100);
 500
 501         rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
 502         rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
 503         rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
 504         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 505                          RTL818X_EEPROM_CMD_CONFIG);
 506         rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
 507         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 508                          RTL818X_EEPROM_CMD_NORMAL);
 509         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
 510         msleep(100);
 511
 512         priv->rf->init(dev);
 513
 514         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
 515         reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
 516         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
 517         rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
 518         rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
 519         rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
 520         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
 521
 522         return 0;
 523 }
 524
 525 static const u8 rtl8187b_reg_table[][3] = {
 526         {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
 527         {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
 528         {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
 529         {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},
 530
 531         {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
 532         {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
 533         {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xE0, 0xFF, 1}, {0xE1, 0x0F, 1},
 534         {0xE2, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, {0xF2, 0x02, 1},
 535         {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, {0xF6, 0x06, 1},
 536         {0xF7, 0x07, 1}, {0xF8, 0x08, 1},
 537
 538         {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
 539         {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
 540         {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
 541         {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
 542         {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
 543         {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
 544         {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, {0x72, 0x56, 2},
 545         {0x73, 0x9A, 2},
 546
 547         {0x34, 0xF0, 0}, {0x35, 0x0F, 0}, {0x5B, 0x40, 0}, {0x84, 0x88, 0},
 548         {0x85, 0x24, 0}, {0x88, 0x54, 0}, {0x8B, 0xB8, 0}, {0x8C, 0x07, 0},
 549         {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, {0x95, 0x12, 0}, {0x96, 0x00, 0},
 550         {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, {0x9F, 0x10, 0}, {0xB4, 0x22, 0},
 551         {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, {0xEE, 0x00, 0}, {0x91, 0x03, 0},
 552
 553         {0x4C, 0x00, 2}, {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0},
 554         {0x8E, 0x08, 0}, {0x8F, 0x00, 0}
 555 };
 556
 557 static int rtl8187b_init_hw(struct ieee80211_hw *dev)
 558 {
 559         struct rtl8187_priv *priv = dev->priv;
 560         int res, i;
 561         u8 reg;
 562
 563         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 564                          RTL818X_EEPROM_CMD_CONFIG);
 565
 566         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 567         reg |= RTL818X_CONFIG3_ANAPARAM_WRITE | RTL818X_CONFIG3_GNT_SELECT;
 568         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 569         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, 0x727f3f52);
 570         rtl818x_iowrite32(priv, &priv->map->ANAPARAM, 0x45090658);
 571         rtl818x_iowrite8(priv, &priv->map->ANAPARAM3, 0);
 572
 573         rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
 574         reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
 575         rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
 576         rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));
 577
 578         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 579         reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
 580         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 581
 582         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 583                          RTL818X_EEPROM_CMD_NORMAL);
 584
 585         res = rtl8187_cmd_reset(dev);
 586         if (res)
 587                 return res;
 588
 589         rtl818x_iowrite16(priv, (__le16 *)0xFF2D, 0x0FFF);
 590         reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
 591         reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
 592         rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
 593         reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
 594         reg |= RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT |
 595                RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
 596         rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
 597
 598         rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
 599         reg = rtl818x_ioread8(priv, &priv->map->RATE_FALLBACK);
 600         reg |= RTL818X_RATE_FALLBACK_ENABLE;
 601         rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, reg);
 602
 603         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
 604         rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
 605         rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);
 606
 607         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 608                          RTL818X_EEPROM_CMD_CONFIG);
 609         reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
 610         rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
 611         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 612                          RTL818X_EEPROM_CMD_NORMAL);
 613
 614         rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
 615         for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
 616                 rtl818x_iowrite8_idx(priv,
 617                                      (u8 *)(uintptr_t)
 618                                      (rtl8187b_reg_table[i][0] | 0xFF00),
 619                                      rtl8187b_reg_table[i][1],
 620                                      rtl8187b_reg_table[i][2]);
 621         }
 622
 623         rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
 624         rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
 625
 626         rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
 627         rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
 628         rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);
 629
 630         rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);
 631
 632         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
 633
 634         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 635                          RTL818X_EEPROM_CMD_CONFIG);
 636         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 637         reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
 638         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 639         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
 640                          RTL818X_EEPROM_CMD_NORMAL);
 641
 642         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
 643         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
 644         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
 645         msleep(1100);
 646
 647         priv->rf->init(dev);
 648
 649         reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
 650         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 651         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
 652
 653         rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
 654         rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
 655         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
 656         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
 657         rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
 658         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
 659         rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
 660
 661         reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
 662         rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
 663         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
 664         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
 665         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
 666         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
 667         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
 668         rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
 669         rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
 670         rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
 671         rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
 672         rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
 673         rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);
 674
 675         rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);
 676
 677         rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);
 678
 679         return 0;
 680 }
 681
 682 static int rtl8187_start(struct ieee80211_hw *dev)
 683 {
 684         struct rtl8187_priv *priv = dev->priv;
 685         u32 reg;
 686         int ret;
 687
 688         ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
 689                                      rtl8187b_init_hw(dev);
 690         if (ret)
 691                 return ret;
 692
 693         if (priv->is_rtl8187b) {
 694                 reg = RTL818X_RX_CONF_MGMT |
 695                       RTL818X_RX_CONF_DATA |
 696                       RTL818X_RX_CONF_BROADCAST |
 697                       RTL818X_RX_CONF_NICMAC |
 698                       RTL818X_RX_CONF_BSSID |
 699                       (7 << 13 /* RX FIFO threshold NONE */) |
 700                       (7 << 10 /* MAX RX DMA */) |
 701                       RTL818X_RX_CONF_RX_AUTORESETPHY |
 702                       RTL818X_RX_CONF_ONLYERLPKT |
 703                       RTL818X_RX_CONF_MULTICAST;
 704                 priv->rx_conf = reg;
 705                 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
 706
 707                 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
 708                                   RTL818X_TX_CONF_HW_SEQNUM |
 709                                   RTL818X_TX_CONF_DISREQQSIZE |
 710                                   (7 << 8  /* short retry limit */) |
 711                                   (7 << 0  /* long retry limit */) |
 712                                   (7 << 21 /* MAX TX DMA */));
 713                 rtl8187_init_urbs(dev);
 714                 return 0;
 715         }
 716
 717         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
 718
 719         rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
 720         rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
 721
 722         rtl8187_init_urbs(dev);
 723
 724         reg = RTL818X_RX_CONF_ONLYERLPKT |
 725               RTL818X_RX_CONF_RX_AUTORESETPHY |
 726               RTL818X_RX_CONF_BSSID |
 727               RTL818X_RX_CONF_MGMT |
 728               RTL818X_RX_CONF_DATA |
 729               (7 << 13 /* RX FIFO threshold NONE */) |
 730               (7 << 10 /* MAX RX DMA */) |
 731               RTL818X_RX_CONF_BROADCAST |
 732               RTL818X_RX_CONF_NICMAC;
 733
 734         priv->rx_conf = reg;
 735         rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
 736
 737         reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
 738         reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
 739         reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
 740         rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
 741
 742         reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
 743         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
 744         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
 745         reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
 746         rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
 747
 748         reg  = RTL818X_TX_CONF_CW_MIN |
 749                (7 << 21 /* MAX TX DMA */) |
 750                RTL818X_TX_CONF_NO_ICV;
 751         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
 752
 753         reg = rtl818x_ioread8(priv, &priv->map->CMD);
 754         reg |= RTL818X_CMD_TX_ENABLE;
 755         reg |= RTL818X_CMD_RX_ENABLE;
 756         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 757
 758         return 0;
 759 }
 760
 761 static void rtl8187_stop(struct ieee80211_hw *dev)
 762 {
 763         struct rtl8187_priv *priv = dev->priv;
 764         struct rtl8187_rx_info *info;
 765         struct sk_buff *skb;
 766         u32 reg;
 767
 768         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
 769
 770         reg = rtl818x_ioread8(priv, &priv->map->CMD);
 771         reg &= ~RTL818X_CMD_TX_ENABLE;
 772         reg &= ~RTL818X_CMD_RX_ENABLE;
 773         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 774
 775         priv->rf->stop(dev);
 776
 777         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 778         reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
 779         rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
 780         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 781
 782         while ((skb = skb_dequeue(&priv->rx_queue))) {
 783                 info = (struct rtl8187_rx_info *)skb->cb;
 784                 usb_kill_urb(info->urb);
 785                 kfree_skb(skb);
 786         }
 787         return;
 788 }
 789
 790 static int rtl8187_add_interface(struct ieee80211_hw *dev,
 791                                  struct ieee80211_if_init_conf *conf)
 792 {
 793         struct rtl8187_priv *priv = dev->priv;
 794         int i;
 795
 796         if (priv->mode != IEEE80211_IF_TYPE_MNTR)
 797                 return -EOPNOTSUPP;
 798
 799         switch (conf->type) {
 800         case IEEE80211_IF_TYPE_STA:
 801                 priv->mode = conf->type;
 802                 break;
 803         default:
 804                 return -EOPNOTSUPP;
 805         }
 806
 807         priv->vif = conf->vif;
 808
 809         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 810         for (i = 0; i < ETH_ALEN; i++)
 811                 rtl818x_iowrite8(priv, &priv->map->MAC[i],
 812                                  ((u8 *)conf->mac_addr)[i]);
 813         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 814
 815         return 0;
 816 }
 817
 818 static void rtl8187_remove_interface(struct ieee80211_hw *dev,
 819                                      struct ieee80211_if_init_conf *conf)
 820 {
 821         struct rtl8187_priv *priv = dev->priv;
 822         priv->mode = IEEE80211_IF_TYPE_MNTR;
 823         priv->vif = NULL;
 824 }
 825
 826 static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
 827 {
 828         struct rtl8187_priv *priv = dev->priv;
 829         u32 reg;
 830
 831         reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
 832         /* Enable TX loopback on MAC level to avoid TX during channel
 833          * changes, as this has be seen to causes problems and the
 834          * card will stop work until next reset
 835          */
 836         rtl818x_iowrite32(priv, &priv->map->TX_CONF,
 837                           reg | RTL818X_TX_CONF_LOOPBACK_MAC);
 838         msleep(10);
 839         priv->rf->set_chan(dev, conf);
 840         msleep(10);
 841         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
 842
 843         if (!priv->is_rtl8187b) {
 844                 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
 845
 846                 if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
 847                         rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
 848                         rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
 849                         rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
 850                         rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
 851                 } else {
 852                         rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
 853                         rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
 854                         rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
 855                         rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
 856                 }
 857         }
 858
 859         rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
 860         rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
 861         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
 862         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
 863         return 0;
 864 }
 865
 866 static int rtl8187_config_interface(struct ieee80211_hw *dev,
 867                                     struct ieee80211_vif *vif,
 868                                     struct ieee80211_if_conf *conf)
 869 {
 870         struct rtl8187_priv *priv = dev->priv;
 871         int i;
 872         u8 reg;
 873
 874         for (i = 0; i < ETH_ALEN; i++)
 875                 rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
 876
 877         if (is_valid_ether_addr(conf->bssid)) {
 878                 reg = RTL818X_MSR_INFRA;
 879                 if (priv->is_rtl8187b)
 880                         reg |= RTL818X_MSR_ENEDCA;
 881                 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
 882         } else {
 883                 reg = RTL818X_MSR_NO_LINK;
 884                 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
 885         }
 886
 887         return 0;
 888 }
 889
 890 static void rtl8187_configure_filter(struct ieee80211_hw *dev,
 891                                      unsigned int changed_flags,
 892                                      unsigned int *total_flags,
 893                                      int mc_count, struct dev_addr_list *mclist)
 894 {
 895         struct rtl8187_priv *priv = dev->priv;
 896
 897         if (changed_flags & FIF_FCSFAIL)
 898                 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
 899         if (changed_flags & FIF_CONTROL)
 900                 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
 901         if (changed_flags & FIF_OTHER_BSS)
 902                 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
 903         if (*total_flags & FIF_ALLMULTI || mc_count > 0)
 904                 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
 905         else
 906                 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
 907
 908         *total_flags = 0;
 909
 910         if (priv->rx_conf & RTL818X_RX_CONF_FCS)
 911                 *total_flags |= FIF_FCSFAIL;
 912         if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
 913                 *total_flags |= FIF_CONTROL;
 914         if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
 915                 *total_flags |= FIF_OTHER_BSS;
 916         if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
 917                 *total_flags |= FIF_ALLMULTI;
 918
 919         rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
 920 }
 921
 922 static const struct ieee80211_ops rtl8187_ops = {
 923         .tx                     = rtl8187_tx,
 924         .start                  = rtl8187_start,
 925         .stop                   = rtl8187_stop,
 926         .add_interface          = rtl8187_add_interface,
 927         .remove_interface       = rtl8187_remove_interface,
 928         .config                 = rtl8187_config,
 929         .config_interface       = rtl8187_config_interface,
 930         .configure_filter       = rtl8187_configure_filter,
 931 };
 932
 933 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
 934 {
 935         struct ieee80211_hw *dev = eeprom->data;
 936         struct rtl8187_priv *priv = dev->priv;
 937         u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
 938
 939         eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
 940         eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
 941         eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
 942         eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
 943 }
 944
 945 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
 946 {
 947         struct ieee80211_hw *dev = eeprom->data;
 948         struct rtl8187_priv *priv = dev->priv;
 949         u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
 950
 951         if (eeprom->reg_data_in)
 952                 reg |= RTL818X_EEPROM_CMD_WRITE;
 953         if (eeprom->reg_data_out)
 954                 reg |= RTL818X_EEPROM_CMD_READ;
 955         if (eeprom->reg_data_clock)
 956                 reg |= RTL818X_EEPROM_CMD_CK;
 957         if (eeprom->reg_chip_select)
 958                 reg |= RTL818X_EEPROM_CMD_CS;
 959
 960         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
 961         udelay(10);
 962 }
 963
 964 static int __devinit rtl8187_probe(struct usb_interface *intf,
 965                                    const struct usb_device_id *id)
 966 {
 967         struct usb_device *udev = interface_to_usbdev(intf);
 968         struct ieee80211_hw *dev;
 969         struct rtl8187_priv *priv;
 970         struct eeprom_93cx6 eeprom;
 971         struct ieee80211_channel *channel;
 972         const char *chip_name;
 973         u16 txpwr, reg;
 974         int err, i;
 975         DECLARE_MAC_BUF(mac);
 976
 977         dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
 978         if (!dev) {
 979                 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
 980                 return -ENOMEM;
 981         }
 982
 983         priv = dev->priv;
 984         priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
 985
 986         SET_IEEE80211_DEV(dev, &intf->dev);
 987         usb_set_intfdata(intf, dev);
 988         priv->udev = udev;
 989
 990         usb_get_dev(udev);
 991
 992         skb_queue_head_init(&priv->rx_queue);
 993
 994         BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
 995         BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
 996
 997         memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
 998         memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
 999         priv->map = (struct rtl818x_csr *)0xFF00;
1000
1001         priv->band.band = IEEE80211_BAND_2GHZ;
1002         priv->band.channels = priv->channels;
1003         priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
1004         priv->band.bitrates = priv->rates;
1005         priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1006         dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
1007
1008
1009         priv->mode = IEEE80211_IF_TYPE_MNTR;
1010         dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1011                      IEEE80211_HW_RX_INCLUDES_FCS |
1012                      IEEE80211_HW_SIGNAL_UNSPEC;
1013         dev->max_signal = 65;
1014
1015         eeprom.data = dev;
1016         eeprom.register_read = rtl8187_eeprom_register_read;
1017         eeprom.register_write = rtl8187_eeprom_register_write;
1018         if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1019                 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1020         else
1021                 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1022
1023         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1024         udelay(10);
1025
1026         eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
1027                                (__le16 __force *)dev->wiphy->perm_addr, 3);
1028         if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
1029                 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
1030                        "generated MAC address\n");
1031                 random_ether_addr(dev->wiphy->perm_addr);
1032         }
1033
1034         channel = priv->channels;
1035         for (i = 0; i < 3; i++) {
1036                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
1037                                   &txpwr);
1038                 (*channel++).hw_value = txpwr & 0xFF;
1039                 (*channel++).hw_value = txpwr >> 8;
1040         }
1041         for (i = 0; i < 2; i++) {
1042                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
1043                                   &txpwr);
1044                 (*channel++).hw_value = txpwr & 0xFF;
1045                 (*channel++).hw_value = txpwr >> 8;
1046         }
1047
1048         eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
1049                           &priv->txpwr_base);
1050
1051         reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
1052         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
1053         /* 0 means asic B-cut, we should use SW 3 wire
1054          * bit-by-bit banging for radio. 1 means we can use
1055          * USB specific request to write radio registers */
1056         priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
1057         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
1058         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1059
1060         if (!priv->is_rtl8187b) {
1061                 u32 reg32;
1062                 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1063                 reg32 &= RTL818X_TX_CONF_HWVER_MASK;
1064                 switch (reg32) {
1065                 case RTL818X_TX_CONF_R8187vD_B:
1066                         /* Some RTL8187B devices have a USB ID of 0x8187
1067                          * detect them here */
1068                         chip_name = "RTL8187BvB(early)";
1069                         priv->is_rtl8187b = 1;
1070                         priv->hw_rev = RTL8187BvB;
1071                         break;
1072                 case RTL818X_TX_CONF_R8187vD:
1073                         chip_name = "RTL8187vD";
1074                         break;
1075                 default:
1076                         chip_name = "RTL8187vB (default)";
1077                 }
1078        } else {
1079                 /*
1080                  * Force USB request to write radio registers for 8187B, Realtek
1081                  * only uses it in their sources
1082                  */
1083                 /*if (priv->asic_rev == 0) {
1084                         printk(KERN_WARNING "rtl8187: Forcing use of USB "
1085                                "requests to write to radio registers\n");
1086                         priv->asic_rev = 1;
1087                 }*/
1088                 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
1089                 case RTL818X_R8187B_B:
1090                         chip_name = "RTL8187BvB";
1091                         priv->hw_rev = RTL8187BvB;
1092                         break;
1093                 case RTL818X_R8187B_D:
1094                         chip_name = "RTL8187BvD";
1095                         priv->hw_rev = RTL8187BvD;
1096                         break;
1097                 case RTL818X_R8187B_E:
1098                         chip_name = "RTL8187BvE";
1099                         priv->hw_rev = RTL8187BvE;
1100                         break;
1101                 default:
1102                         chip_name = "RTL8187BvB (default)";
1103                         priv->hw_rev = RTL8187BvB;
1104                 }
1105         }
1106
1107         if (!priv->is_rtl8187b) {
1108                 for (i = 0; i < 2; i++) {
1109                         eeprom_93cx6_read(&eeprom,
1110                                           RTL8187_EEPROM_TXPWR_CHAN_6 + i,
1111                                           &txpwr);
1112                         (*channel++).hw_value = txpwr & 0xFF;
1113                         (*channel++).hw_value = txpwr >> 8;
1114                 }
1115         } else {
1116                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
1117                                   &txpwr);
1118                 (*channel++).hw_value = txpwr & 0xFF;
1119
1120                 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
1121                 (*channel++).hw_value = txpwr & 0xFF;
1122
1123                 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
1124                 (*channel++).hw_value = txpwr & 0xFF;
1125                 (*channel++).hw_value = txpwr >> 8;
1126         }
1127
1128         if (priv->is_rtl8187b)
1129                 printk(KERN_WARNING "rtl8187: 8187B chip detected. Support "
1130                         "is EXPERIMENTAL, and could damage your\n"
1131                         "         hardware, use at your own risk\n");
1132         if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
1133                 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
1134                        " info!\n");
1135
1136         priv->rf = rtl8187_detect_rf(dev);
1137         dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
1138                                   sizeof(struct rtl8187_tx_hdr) :
1139                                   sizeof(struct rtl8187b_tx_hdr);
1140         if (!priv->is_rtl8187b)
1141                 dev->queues = 1;
1142         else
1143                 dev->queues = 4;
1144
1145         err = ieee80211_register_hw(dev);
1146         if (err) {
1147                 printk(KERN_ERR "rtl8187: Cannot register device\n");
1148                 goto err_free_dev;
1149         }
1150
1151         printk(KERN_INFO "%s: hwaddr %s, %s V%d + %s\n",
1152                wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
1153                chip_name, priv->asic_rev, priv->rf->name);
1154
1155         return 0;
1156
1157  err_free_dev:
1158         ieee80211_free_hw(dev);
1159         usb_set_intfdata(intf, NULL);
1160         usb_put_dev(udev);
1161         return err;
1162 }
1163
1164 static void __devexit rtl8187_disconnect(struct usb_interface *intf)
1165 {
1166         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1167         struct rtl8187_priv *priv;
1168
1169         if (!dev)
1170                 return;
1171
1172         ieee80211_unregister_hw(dev);
1173
1174         priv = dev->priv;
1175         usb_put_dev(interface_to_usbdev(intf));
1176         ieee80211_free_hw(dev);
1177 }
1178
1179 static struct usb_driver rtl8187_driver = {
1180         .name           = KBUILD_MODNAME,
1181         .id_table       = rtl8187_table,
1182         .probe          = rtl8187_probe,
1183         .disconnect     = rtl8187_disconnect,
1184 };
1185
1186 static int __init rtl8187_init(void)
1187 {
1188         return usb_register(&rtl8187_driver);
1189 }
1190
1191 static void __exit rtl8187_exit(void)
1192 {
1193         usb_deregister(&rtl8187_driver);
1194 }
1195
1196 module_init(rtl8187_init);
1197 module_exit(rtl8187_exit);