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