linux/drivers/net/wireless/rtl818x/rtl8180/dev.c
<<
>>
Prefs
   1
   2/*
   3 * Linux device driver for RTL8180 / RTL8185
   4 *
   5 * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
   6 * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
   7 *
   8 * Based on the r8180 driver, which is:
   9 * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
  10 *
  11 * 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/pci.h>
  20#include <linux/slab.h>
  21#include <linux/delay.h>
  22#include <linux/etherdevice.h>
  23#include <linux/eeprom_93cx6.h>
  24#include <net/mac80211.h>
  25
  26#include "rtl8180.h"
  27#include "rtl8225.h"
  28#include "sa2400.h"
  29#include "max2820.h"
  30#include "grf5101.h"
  31
  32MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
  33MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
  34MODULE_DESCRIPTION("RTL8180 / RTL8185 PCI wireless driver");
  35MODULE_LICENSE("GPL");
  36
  37static DEFINE_PCI_DEVICE_TABLE(rtl8180_table) = {
  38        /* rtl8185 */
  39        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8185) },
  40        { PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x700f) },
  41        { PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x701f) },
  42
  43        /* rtl8180 */
  44        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8180) },
  45        { PCI_DEVICE(0x1799, 0x6001) },
  46        { PCI_DEVICE(0x1799, 0x6020) },
  47        { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x3300) },
  48        { }
  49};
  50
  51MODULE_DEVICE_TABLE(pci, rtl8180_table);
  52
  53static const struct ieee80211_rate rtl818x_rates[] = {
  54        { .bitrate = 10, .hw_value = 0, },
  55        { .bitrate = 20, .hw_value = 1, },
  56        { .bitrate = 55, .hw_value = 2, },
  57        { .bitrate = 110, .hw_value = 3, },
  58        { .bitrate = 60, .hw_value = 4, },
  59        { .bitrate = 90, .hw_value = 5, },
  60        { .bitrate = 120, .hw_value = 6, },
  61        { .bitrate = 180, .hw_value = 7, },
  62        { .bitrate = 240, .hw_value = 8, },
  63        { .bitrate = 360, .hw_value = 9, },
  64        { .bitrate = 480, .hw_value = 10, },
  65        { .bitrate = 540, .hw_value = 11, },
  66};
  67
  68static const struct ieee80211_channel rtl818x_channels[] = {
  69        { .center_freq = 2412 },
  70        { .center_freq = 2417 },
  71        { .center_freq = 2422 },
  72        { .center_freq = 2427 },
  73        { .center_freq = 2432 },
  74        { .center_freq = 2437 },
  75        { .center_freq = 2442 },
  76        { .center_freq = 2447 },
  77        { .center_freq = 2452 },
  78        { .center_freq = 2457 },
  79        { .center_freq = 2462 },
  80        { .center_freq = 2467 },
  81        { .center_freq = 2472 },
  82        { .center_freq = 2484 },
  83};
  84
  85
  86void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
  87{
  88        struct rtl8180_priv *priv = dev->priv;
  89        int i = 10;
  90        u32 buf;
  91
  92        buf = (data << 8) | addr;
  93
  94        rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf | 0x80);
  95        while (i--) {
  96                rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf);
  97                if (rtl818x_ioread8(priv, &priv->map->PHY[2]) == (data & 0xFF))
  98                        return;
  99        }
 100}
 101
 102static void rtl8180_handle_rx(struct ieee80211_hw *dev)
 103{
 104        struct rtl8180_priv *priv = dev->priv;
 105        unsigned int count = 32;
 106        u8 signal, agc, sq;
 107
 108        while (count--) {
 109                struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx];
 110                struct sk_buff *skb = priv->rx_buf[priv->rx_idx];
 111                u32 flags = le32_to_cpu(entry->flags);
 112
 113                if (flags & RTL818X_RX_DESC_FLAG_OWN)
 114                        return;
 115
 116                if (unlikely(flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL |
 117                                      RTL818X_RX_DESC_FLAG_FOF |
 118                                      RTL818X_RX_DESC_FLAG_RX_ERR)))
 119                        goto done;
 120                else {
 121                        u32 flags2 = le32_to_cpu(entry->flags2);
 122                        struct ieee80211_rx_status rx_status = {0};
 123                        struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_SIZE);
 124
 125                        if (unlikely(!new_skb))
 126                                goto done;
 127
 128                        pci_unmap_single(priv->pdev,
 129                                         *((dma_addr_t *)skb->cb),
 130                                         MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
 131                        skb_put(skb, flags & 0xFFF);
 132
 133                        rx_status.antenna = (flags2 >> 15) & 1;
 134                        rx_status.rate_idx = (flags >> 20) & 0xF;
 135                        agc = (flags2 >> 17) & 0x7F;
 136                        if (priv->r8185) {
 137                                if (rx_status.rate_idx > 3)
 138                                        signal = 90 - clamp_t(u8, agc, 25, 90);
 139                                else
 140                                        signal = 95 - clamp_t(u8, agc, 30, 95);
 141                        } else {
 142                                sq = flags2 & 0xff;
 143                                signal = priv->rf->calc_rssi(agc, sq);
 144                        }
 145                        rx_status.signal = signal;
 146                        rx_status.freq = dev->conf.channel->center_freq;
 147                        rx_status.band = dev->conf.channel->band;
 148                        rx_status.mactime = le64_to_cpu(entry->tsft);
 149                        rx_status.flag |= RX_FLAG_MACTIME_MPDU;
 150                        if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
 151                                rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
 152
 153                        memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
 154                        ieee80211_rx_irqsafe(dev, skb);
 155
 156                        skb = new_skb;
 157                        priv->rx_buf[priv->rx_idx] = skb;
 158                        *((dma_addr_t *) skb->cb) =
 159                                pci_map_single(priv->pdev, skb_tail_pointer(skb),
 160                                               MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
 161                }
 162
 163        done:
 164                entry->rx_buf = cpu_to_le32(*((dma_addr_t *)skb->cb));
 165                entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
 166                                           MAX_RX_SIZE);
 167                if (priv->rx_idx == 31)
 168                        entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
 169                priv->rx_idx = (priv->rx_idx + 1) % 32;
 170        }
 171}
 172
 173static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio)
 174{
 175        struct rtl8180_priv *priv = dev->priv;
 176        struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
 177
 178        while (skb_queue_len(&ring->queue)) {
 179                struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
 180                struct sk_buff *skb;
 181                struct ieee80211_tx_info *info;
 182                u32 flags = le32_to_cpu(entry->flags);
 183
 184                if (flags & RTL818X_TX_DESC_FLAG_OWN)
 185                        return;
 186
 187                ring->idx = (ring->idx + 1) % ring->entries;
 188                skb = __skb_dequeue(&ring->queue);
 189                pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
 190                                 skb->len, PCI_DMA_TODEVICE);
 191
 192                info = IEEE80211_SKB_CB(skb);
 193                ieee80211_tx_info_clear_status(info);
 194
 195                if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
 196                    (flags & RTL818X_TX_DESC_FLAG_TX_OK))
 197                        info->flags |= IEEE80211_TX_STAT_ACK;
 198
 199                info->status.rates[0].count = (flags & 0xFF) + 1;
 200                info->status.rates[1].idx = -1;
 201
 202                ieee80211_tx_status_irqsafe(dev, skb);
 203                if (ring->entries - skb_queue_len(&ring->queue) == 2)
 204                        ieee80211_wake_queue(dev, prio);
 205        }
 206}
 207
 208static irqreturn_t rtl8180_interrupt(int irq, void *dev_id)
 209{
 210        struct ieee80211_hw *dev = dev_id;
 211        struct rtl8180_priv *priv = dev->priv;
 212        u16 reg;
 213
 214        spin_lock(&priv->lock);
 215        reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS);
 216        if (unlikely(reg == 0xFFFF)) {
 217                spin_unlock(&priv->lock);
 218                return IRQ_HANDLED;
 219        }
 220
 221        rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg);
 222
 223        if (reg & (RTL818X_INT_TXB_OK | RTL818X_INT_TXB_ERR))
 224                rtl8180_handle_tx(dev, 3);
 225
 226        if (reg & (RTL818X_INT_TXH_OK | RTL818X_INT_TXH_ERR))
 227                rtl8180_handle_tx(dev, 2);
 228
 229        if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR))
 230                rtl8180_handle_tx(dev, 1);
 231
 232        if (reg & (RTL818X_INT_TXL_OK | RTL818X_INT_TXL_ERR))
 233                rtl8180_handle_tx(dev, 0);
 234
 235        if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR))
 236                rtl8180_handle_rx(dev);
 237
 238        spin_unlock(&priv->lock);
 239
 240        return IRQ_HANDLED;
 241}
 242
 243static void rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 244{
 245        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 246        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 247        struct rtl8180_priv *priv = dev->priv;
 248        struct rtl8180_tx_ring *ring;
 249        struct rtl8180_tx_desc *entry;
 250        unsigned long flags;
 251        unsigned int idx, prio;
 252        dma_addr_t mapping;
 253        u32 tx_flags;
 254        u8 rc_flags;
 255        u16 plcp_len = 0;
 256        __le16 rts_duration = 0;
 257
 258        prio = skb_get_queue_mapping(skb);
 259        ring = &priv->tx_ring[prio];
 260
 261        mapping = pci_map_single(priv->pdev, skb->data,
 262                                 skb->len, PCI_DMA_TODEVICE);
 263
 264        tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
 265                   RTL818X_TX_DESC_FLAG_LS |
 266                   (ieee80211_get_tx_rate(dev, info)->hw_value << 24) |
 267                   skb->len;
 268
 269        if (priv->r8185)
 270                tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
 271                            RTL818X_TX_DESC_FLAG_NO_ENC;
 272
 273        rc_flags = info->control.rates[0].flags;
 274        if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
 275                tx_flags |= RTL818X_TX_DESC_FLAG_RTS;
 276                tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 277        } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 278                tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
 279                tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 280        }
 281
 282        if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
 283                rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len,
 284                                                      info);
 285
 286        if (!priv->r8185) {
 287                unsigned int remainder;
 288
 289                plcp_len = DIV_ROUND_UP(16 * (skb->len + 4),
 290                                (ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
 291                remainder = (16 * (skb->len + 4)) %
 292                            ((ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
 293                if (remainder <= 6)
 294                        plcp_len |= 1 << 15;
 295        }
 296
 297        spin_lock_irqsave(&priv->lock, flags);
 298
 299        if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
 300                if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
 301                        priv->seqno += 0x10;
 302                hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
 303                hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
 304        }
 305
 306        idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
 307        entry = &ring->desc[idx];
 308
 309        entry->rts_duration = rts_duration;
 310        entry->plcp_len = cpu_to_le16(plcp_len);
 311        entry->tx_buf = cpu_to_le32(mapping);
 312        entry->frame_len = cpu_to_le32(skb->len);
 313        entry->flags2 = info->control.rates[1].idx >= 0 ?
 314                ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0;
 315        entry->retry_limit = info->control.rates[0].count;
 316        entry->flags = cpu_to_le32(tx_flags);
 317        __skb_queue_tail(&ring->queue, skb);
 318        if (ring->entries - skb_queue_len(&ring->queue) < 2)
 319                ieee80211_stop_queue(dev, prio);
 320
 321        spin_unlock_irqrestore(&priv->lock, flags);
 322
 323        rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4)));
 324}
 325
 326void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam)
 327{
 328        u8 reg;
 329
 330        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 331        reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 332        rtl818x_iowrite8(priv, &priv->map->CONFIG3,
 333                 reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
 334        rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
 335        rtl818x_iowrite8(priv, &priv->map->CONFIG3,
 336                 reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
 337        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 338}
 339
 340static int rtl8180_init_hw(struct ieee80211_hw *dev)
 341{
 342        struct rtl8180_priv *priv = dev->priv;
 343        u16 reg;
 344
 345        rtl818x_iowrite8(priv, &priv->map->CMD, 0);
 346        rtl818x_ioread8(priv, &priv->map->CMD);
 347        msleep(10);
 348
 349        /* reset */
 350        rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
 351        rtl818x_ioread8(priv, &priv->map->CMD);
 352
 353        reg = rtl818x_ioread8(priv, &priv->map->CMD);
 354        reg &= (1 << 1);
 355        reg |= RTL818X_CMD_RESET;
 356        rtl818x_iowrite8(priv, &priv->map->CMD, RTL818X_CMD_RESET);
 357        rtl818x_ioread8(priv, &priv->map->CMD);
 358        msleep(200);
 359
 360        /* check success of reset */
 361        if (rtl818x_ioread8(priv, &priv->map->CMD) & RTL818X_CMD_RESET) {
 362                wiphy_err(dev->wiphy, "reset timeout!\n");
 363                return -ETIMEDOUT;
 364        }
 365
 366        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
 367        rtl818x_ioread8(priv, &priv->map->CMD);
 368        msleep(200);
 369
 370        if (rtl818x_ioread8(priv, &priv->map->CONFIG3) & (1 << 3)) {
 371                /* For cardbus */
 372                reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 373                reg |= 1 << 1;
 374                rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
 375                reg = rtl818x_ioread16(priv, &priv->map->FEMR);
 376                reg |= (1 << 15) | (1 << 14) | (1 << 4);
 377                rtl818x_iowrite16(priv, &priv->map->FEMR, reg);
 378        }
 379
 380        rtl818x_iowrite8(priv, &priv->map->MSR, 0);
 381
 382        if (!priv->r8185)
 383                rtl8180_set_anaparam(priv, priv->anaparam);
 384
 385        rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
 386        rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma);
 387        rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma);
 388        rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma);
 389        rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma);
 390
 391        /* TODO: necessary? specs indicate not */
 392        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 393        reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
 394        rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg & ~(1 << 3));
 395        if (priv->r8185) {
 396                reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
 397                rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg | (1 << 4));
 398        }
 399        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 400
 401        /* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */
 402
 403        /* TODO: turn off hw wep on rtl8180 */
 404
 405        rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
 406
 407        if (priv->r8185) {
 408                rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
 409                rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
 410                rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
 411
 412                rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
 413
 414                /* TODO: set ClkRun enable? necessary? */
 415                reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE);
 416                rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6));
 417                rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 418                reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 419                rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2));
 420                rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 421        } else {
 422                rtl818x_iowrite16(priv, &priv->map->BRSR, 0x1);
 423                rtl818x_iowrite8(priv, &priv->map->SECURITY, 0);
 424
 425                rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6);
 426                rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C);
 427        }
 428
 429        priv->rf->init(dev);
 430        if (priv->r8185)
 431                rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
 432        return 0;
 433}
 434
 435static int rtl8180_init_rx_ring(struct ieee80211_hw *dev)
 436{
 437        struct rtl8180_priv *priv = dev->priv;
 438        struct rtl8180_rx_desc *entry;
 439        int i;
 440
 441        priv->rx_ring = pci_alloc_consistent(priv->pdev,
 442                                             sizeof(*priv->rx_ring) * 32,
 443                                             &priv->rx_ring_dma);
 444
 445        if (!priv->rx_ring || (unsigned long)priv->rx_ring & 0xFF) {
 446                wiphy_err(dev->wiphy, "Cannot allocate RX ring\n");
 447                return -ENOMEM;
 448        }
 449
 450        memset(priv->rx_ring, 0, sizeof(*priv->rx_ring) * 32);
 451        priv->rx_idx = 0;
 452
 453        for (i = 0; i < 32; i++) {
 454                struct sk_buff *skb = dev_alloc_skb(MAX_RX_SIZE);
 455                dma_addr_t *mapping;
 456                entry = &priv->rx_ring[i];
 457                if (!skb)
 458                        return 0;
 459
 460                priv->rx_buf[i] = skb;
 461                mapping = (dma_addr_t *)skb->cb;
 462                *mapping = pci_map_single(priv->pdev, skb_tail_pointer(skb),
 463                                          MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
 464                entry->rx_buf = cpu_to_le32(*mapping);
 465                entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
 466                                           MAX_RX_SIZE);
 467        }
 468        entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
 469        return 0;
 470}
 471
 472static void rtl8180_free_rx_ring(struct ieee80211_hw *dev)
 473{
 474        struct rtl8180_priv *priv = dev->priv;
 475        int i;
 476
 477        for (i = 0; i < 32; i++) {
 478                struct sk_buff *skb = priv->rx_buf[i];
 479                if (!skb)
 480                        continue;
 481
 482                pci_unmap_single(priv->pdev,
 483                                 *((dma_addr_t *)skb->cb),
 484                                 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
 485                kfree_skb(skb);
 486        }
 487
 488        pci_free_consistent(priv->pdev, sizeof(*priv->rx_ring) * 32,
 489                            priv->rx_ring, priv->rx_ring_dma);
 490        priv->rx_ring = NULL;
 491}
 492
 493static int rtl8180_init_tx_ring(struct ieee80211_hw *dev,
 494                                unsigned int prio, unsigned int entries)
 495{
 496        struct rtl8180_priv *priv = dev->priv;
 497        struct rtl8180_tx_desc *ring;
 498        dma_addr_t dma;
 499        int i;
 500
 501        ring = pci_alloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
 502        if (!ring || (unsigned long)ring & 0xFF) {
 503                wiphy_err(dev->wiphy, "Cannot allocate TX ring (prio = %d)\n",
 504                          prio);
 505                return -ENOMEM;
 506        }
 507
 508        memset(ring, 0, sizeof(*ring)*entries);
 509        priv->tx_ring[prio].desc = ring;
 510        priv->tx_ring[prio].dma = dma;
 511        priv->tx_ring[prio].idx = 0;
 512        priv->tx_ring[prio].entries = entries;
 513        skb_queue_head_init(&priv->tx_ring[prio].queue);
 514
 515        for (i = 0; i < entries; i++)
 516                ring[i].next_tx_desc =
 517                        cpu_to_le32((u32)dma + ((i + 1) % entries) * sizeof(*ring));
 518
 519        return 0;
 520}
 521
 522static void rtl8180_free_tx_ring(struct ieee80211_hw *dev, unsigned int prio)
 523{
 524        struct rtl8180_priv *priv = dev->priv;
 525        struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
 526
 527        while (skb_queue_len(&ring->queue)) {
 528                struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
 529                struct sk_buff *skb = __skb_dequeue(&ring->queue);
 530
 531                pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
 532                                 skb->len, PCI_DMA_TODEVICE);
 533                kfree_skb(skb);
 534                ring->idx = (ring->idx + 1) % ring->entries;
 535        }
 536
 537        pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
 538                            ring->desc, ring->dma);
 539        ring->desc = NULL;
 540}
 541
 542static int rtl8180_start(struct ieee80211_hw *dev)
 543{
 544        struct rtl8180_priv *priv = dev->priv;
 545        int ret, i;
 546        u32 reg;
 547
 548        ret = rtl8180_init_rx_ring(dev);
 549        if (ret)
 550                return ret;
 551
 552        for (i = 0; i < 4; i++)
 553                if ((ret = rtl8180_init_tx_ring(dev, i, 16)))
 554                        goto err_free_rings;
 555
 556        ret = rtl8180_init_hw(dev);
 557        if (ret)
 558                goto err_free_rings;
 559
 560        rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
 561        rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma);
 562        rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma);
 563        rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma);
 564        rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma);
 565
 566        ret = request_irq(priv->pdev->irq, rtl8180_interrupt,
 567                          IRQF_SHARED, KBUILD_MODNAME, dev);
 568        if (ret) {
 569                wiphy_err(dev->wiphy, "failed to register IRQ handler\n");
 570                goto err_free_rings;
 571        }
 572
 573        rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
 574
 575        rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
 576        rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
 577
 578        reg = RTL818X_RX_CONF_ONLYERLPKT |
 579              RTL818X_RX_CONF_RX_AUTORESETPHY |
 580              RTL818X_RX_CONF_MGMT |
 581              RTL818X_RX_CONF_DATA |
 582              (7 << 8 /* MAX RX DMA */) |
 583              RTL818X_RX_CONF_BROADCAST |
 584              RTL818X_RX_CONF_NICMAC;
 585
 586        if (priv->r8185)
 587                reg |= RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2;
 588        else {
 589                reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE1)
 590                        ? RTL818X_RX_CONF_CSDM1 : 0;
 591                reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE2)
 592                        ? RTL818X_RX_CONF_CSDM2 : 0;
 593        }
 594
 595        priv->rx_conf = reg;
 596        rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
 597
 598        if (priv->r8185) {
 599                reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
 600                reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
 601                reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
 602                rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
 603
 604                reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
 605                reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
 606                reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
 607                reg |=  RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
 608                rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
 609
 610                /* disable early TX */
 611                rtl818x_iowrite8(priv, (u8 __iomem *)priv->map + 0xec, 0x3f);
 612        }
 613
 614        reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
 615        reg |= (6 << 21 /* MAX TX DMA */) |
 616               RTL818X_TX_CONF_NO_ICV;
 617
 618        if (priv->r8185)
 619                reg &= ~RTL818X_TX_CONF_PROBE_DTS;
 620        else
 621                reg &= ~RTL818X_TX_CONF_HW_SEQNUM;
 622
 623        /* different meaning, same value on both rtl8185 and rtl8180 */
 624        reg &= ~RTL818X_TX_CONF_SAT_HWPLCP;
 625
 626        rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
 627
 628        reg = rtl818x_ioread8(priv, &priv->map->CMD);
 629        reg |= RTL818X_CMD_RX_ENABLE;
 630        reg |= RTL818X_CMD_TX_ENABLE;
 631        rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 632
 633        return 0;
 634
 635 err_free_rings:
 636        rtl8180_free_rx_ring(dev);
 637        for (i = 0; i < 4; i++)
 638                if (priv->tx_ring[i].desc)
 639                        rtl8180_free_tx_ring(dev, i);
 640
 641        return ret;
 642}
 643
 644static void rtl8180_stop(struct ieee80211_hw *dev)
 645{
 646        struct rtl8180_priv *priv = dev->priv;
 647        u8 reg;
 648        int i;
 649
 650        rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
 651
 652        reg = rtl818x_ioread8(priv, &priv->map->CMD);
 653        reg &= ~RTL818X_CMD_TX_ENABLE;
 654        reg &= ~RTL818X_CMD_RX_ENABLE;
 655        rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 656
 657        priv->rf->stop(dev);
 658
 659        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 660        reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
 661        rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
 662        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 663
 664        free_irq(priv->pdev->irq, dev);
 665
 666        rtl8180_free_rx_ring(dev);
 667        for (i = 0; i < 4; i++)
 668                rtl8180_free_tx_ring(dev, i);
 669}
 670
 671static u64 rtl8180_get_tsf(struct ieee80211_hw *dev)
 672{
 673        struct rtl8180_priv *priv = dev->priv;
 674
 675        return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
 676               (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
 677}
 678
 679static void rtl8180_beacon_work(struct work_struct *work)
 680{
 681        struct rtl8180_vif *vif_priv =
 682                container_of(work, struct rtl8180_vif, beacon_work.work);
 683        struct ieee80211_vif *vif =
 684                container_of((void *)vif_priv, struct ieee80211_vif, drv_priv);
 685        struct ieee80211_hw *dev = vif_priv->dev;
 686        struct ieee80211_mgmt *mgmt;
 687        struct sk_buff *skb;
 688
 689        /* don't overflow the tx ring */
 690        if (ieee80211_queue_stopped(dev, 0))
 691                goto resched;
 692
 693        /* grab a fresh beacon */
 694        skb = ieee80211_beacon_get(dev, vif);
 695        if (!skb)
 696                goto resched;
 697
 698        /*
 699         * update beacon timestamp w/ TSF value
 700         * TODO: make hardware update beacon timestamp
 701         */
 702        mgmt = (struct ieee80211_mgmt *)skb->data;
 703        mgmt->u.beacon.timestamp = cpu_to_le64(rtl8180_get_tsf(dev));
 704
 705        /* TODO: use actual beacon queue */
 706        skb_set_queue_mapping(skb, 0);
 707
 708        rtl8180_tx(dev, skb);
 709
 710resched:
 711        /*
 712         * schedule next beacon
 713         * TODO: use hardware support for beacon timing
 714         */
 715        schedule_delayed_work(&vif_priv->beacon_work,
 716                        usecs_to_jiffies(1024 * vif->bss_conf.beacon_int));
 717}
 718
 719static int rtl8180_add_interface(struct ieee80211_hw *dev,
 720                                 struct ieee80211_vif *vif)
 721{
 722        struct rtl8180_priv *priv = dev->priv;
 723        struct rtl8180_vif *vif_priv;
 724
 725        /*
 726         * We only support one active interface at a time.
 727         */
 728        if (priv->vif)
 729                return -EBUSY;
 730
 731        switch (vif->type) {
 732        case NL80211_IFTYPE_STATION:
 733        case NL80211_IFTYPE_ADHOC:
 734                break;
 735        default:
 736                return -EOPNOTSUPP;
 737        }
 738
 739        priv->vif = vif;
 740
 741        /* Initialize driver private area */
 742        vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
 743        vif_priv->dev = dev;
 744        INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8180_beacon_work);
 745        vif_priv->enable_beacon = false;
 746
 747        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 748        rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->MAC[0],
 749                          le32_to_cpu(*(__le32 *)vif->addr));
 750        rtl818x_iowrite16(priv, (__le16 __iomem *)&priv->map->MAC[4],
 751                          le16_to_cpu(*(__le16 *)(vif->addr + 4)));
 752        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 753
 754        return 0;
 755}
 756
 757static void rtl8180_remove_interface(struct ieee80211_hw *dev,
 758                                     struct ieee80211_vif *vif)
 759{
 760        struct rtl8180_priv *priv = dev->priv;
 761        priv->vif = NULL;
 762}
 763
 764static int rtl8180_config(struct ieee80211_hw *dev, u32 changed)
 765{
 766        struct rtl8180_priv *priv = dev->priv;
 767        struct ieee80211_conf *conf = &dev->conf;
 768
 769        priv->rf->set_chan(dev, conf);
 770
 771        return 0;
 772}
 773
 774static void rtl8180_bss_info_changed(struct ieee80211_hw *dev,
 775                                     struct ieee80211_vif *vif,
 776                                     struct ieee80211_bss_conf *info,
 777                                     u32 changed)
 778{
 779        struct rtl8180_priv *priv = dev->priv;
 780        struct rtl8180_vif *vif_priv;
 781        int i;
 782        u8 reg;
 783
 784        vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
 785
 786        if (changed & BSS_CHANGED_BSSID) {
 787                for (i = 0; i < ETH_ALEN; i++)
 788                        rtl818x_iowrite8(priv, &priv->map->BSSID[i],
 789                                         info->bssid[i]);
 790
 791                if (is_valid_ether_addr(info->bssid)) {
 792                        if (vif->type == NL80211_IFTYPE_ADHOC)
 793                                reg = RTL818X_MSR_ADHOC;
 794                        else
 795                                reg = RTL818X_MSR_INFRA;
 796                } else
 797                        reg = RTL818X_MSR_NO_LINK;
 798                rtl818x_iowrite8(priv, &priv->map->MSR, reg);
 799        }
 800
 801        if (changed & BSS_CHANGED_ERP_SLOT && priv->rf->conf_erp)
 802                priv->rf->conf_erp(dev, info);
 803
 804        if (changed & BSS_CHANGED_BEACON_ENABLED)
 805                vif_priv->enable_beacon = info->enable_beacon;
 806
 807        if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) {
 808                cancel_delayed_work_sync(&vif_priv->beacon_work);
 809                if (vif_priv->enable_beacon)
 810                        schedule_work(&vif_priv->beacon_work.work);
 811        }
 812}
 813
 814static u64 rtl8180_prepare_multicast(struct ieee80211_hw *dev,
 815                                     struct netdev_hw_addr_list *mc_list)
 816{
 817        return netdev_hw_addr_list_count(mc_list);
 818}
 819
 820static void rtl8180_configure_filter(struct ieee80211_hw *dev,
 821                                     unsigned int changed_flags,
 822                                     unsigned int *total_flags,
 823                                     u64 multicast)
 824{
 825        struct rtl8180_priv *priv = dev->priv;
 826
 827        if (changed_flags & FIF_FCSFAIL)
 828                priv->rx_conf ^= RTL818X_RX_CONF_FCS;
 829        if (changed_flags & FIF_CONTROL)
 830                priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
 831        if (changed_flags & FIF_OTHER_BSS)
 832                priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
 833        if (*total_flags & FIF_ALLMULTI || multicast > 0)
 834                priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
 835        else
 836                priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
 837
 838        *total_flags = 0;
 839
 840        if (priv->rx_conf & RTL818X_RX_CONF_FCS)
 841                *total_flags |= FIF_FCSFAIL;
 842        if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
 843                *total_flags |= FIF_CONTROL;
 844        if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
 845                *total_flags |= FIF_OTHER_BSS;
 846        if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
 847                *total_flags |= FIF_ALLMULTI;
 848
 849        rtl818x_iowrite32(priv, &priv->map->RX_CONF, priv->rx_conf);
 850}
 851
 852static const struct ieee80211_ops rtl8180_ops = {
 853        .tx                     = rtl8180_tx,
 854        .start                  = rtl8180_start,
 855        .stop                   = rtl8180_stop,
 856        .add_interface          = rtl8180_add_interface,
 857        .remove_interface       = rtl8180_remove_interface,
 858        .config                 = rtl8180_config,
 859        .bss_info_changed       = rtl8180_bss_info_changed,
 860        .prepare_multicast      = rtl8180_prepare_multicast,
 861        .configure_filter       = rtl8180_configure_filter,
 862        .get_tsf                = rtl8180_get_tsf,
 863};
 864
 865static void rtl8180_eeprom_register_read(struct eeprom_93cx6 *eeprom)
 866{
 867        struct ieee80211_hw *dev = eeprom->data;
 868        struct rtl8180_priv *priv = dev->priv;
 869        u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
 870
 871        eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
 872        eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
 873        eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
 874        eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
 875}
 876
 877static void rtl8180_eeprom_register_write(struct eeprom_93cx6 *eeprom)
 878{
 879        struct ieee80211_hw *dev = eeprom->data;
 880        struct rtl8180_priv *priv = dev->priv;
 881        u8 reg = 2 << 6;
 882
 883        if (eeprom->reg_data_in)
 884                reg |= RTL818X_EEPROM_CMD_WRITE;
 885        if (eeprom->reg_data_out)
 886                reg |= RTL818X_EEPROM_CMD_READ;
 887        if (eeprom->reg_data_clock)
 888                reg |= RTL818X_EEPROM_CMD_CK;
 889        if (eeprom->reg_chip_select)
 890                reg |= RTL818X_EEPROM_CMD_CS;
 891
 892        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
 893        rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
 894        udelay(10);
 895}
 896
 897static int __devinit rtl8180_probe(struct pci_dev *pdev,
 898                                   const struct pci_device_id *id)
 899{
 900        struct ieee80211_hw *dev;
 901        struct rtl8180_priv *priv;
 902        unsigned long mem_addr, mem_len;
 903        unsigned int io_addr, io_len;
 904        int err, i;
 905        struct eeprom_93cx6 eeprom;
 906        const char *chip_name, *rf_name = NULL;
 907        u32 reg;
 908        u16 eeprom_val;
 909        u8 mac_addr[ETH_ALEN];
 910
 911        err = pci_enable_device(pdev);
 912        if (err) {
 913                printk(KERN_ERR "%s (rtl8180): Cannot enable new PCI device\n",
 914                       pci_name(pdev));
 915                return err;
 916        }
 917
 918        err = pci_request_regions(pdev, KBUILD_MODNAME);
 919        if (err) {
 920                printk(KERN_ERR "%s (rtl8180): Cannot obtain PCI resources\n",
 921                       pci_name(pdev));
 922                return err;
 923        }
 924
 925        io_addr = pci_resource_start(pdev, 0);
 926        io_len = pci_resource_len(pdev, 0);
 927        mem_addr = pci_resource_start(pdev, 1);
 928        mem_len = pci_resource_len(pdev, 1);
 929
 930        if (mem_len < sizeof(struct rtl818x_csr) ||
 931            io_len < sizeof(struct rtl818x_csr)) {
 932                printk(KERN_ERR "%s (rtl8180): Too short PCI resources\n",
 933                       pci_name(pdev));
 934                err = -ENOMEM;
 935                goto err_free_reg;
 936        }
 937
 938        if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) ||
 939            (err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))) {
 940                printk(KERN_ERR "%s (rtl8180): No suitable DMA available\n",
 941                       pci_name(pdev));
 942                goto err_free_reg;
 943        }
 944
 945        pci_set_master(pdev);
 946
 947        dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8180_ops);
 948        if (!dev) {
 949                printk(KERN_ERR "%s (rtl8180): ieee80211 alloc failed\n",
 950                       pci_name(pdev));
 951                err = -ENOMEM;
 952                goto err_free_reg;
 953        }
 954
 955        priv = dev->priv;
 956        priv->pdev = pdev;
 957
 958        dev->max_rates = 2;
 959        SET_IEEE80211_DEV(dev, &pdev->dev);
 960        pci_set_drvdata(pdev, dev);
 961
 962        priv->map = pci_iomap(pdev, 1, mem_len);
 963        if (!priv->map)
 964                priv->map = pci_iomap(pdev, 0, io_len);
 965
 966        if (!priv->map) {
 967                printk(KERN_ERR "%s (rtl8180): Cannot map device memory\n",
 968                       pci_name(pdev));
 969                goto err_free_dev;
 970        }
 971
 972        BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
 973        BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
 974
 975        memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
 976        memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
 977
 978        priv->band.band = IEEE80211_BAND_2GHZ;
 979        priv->band.channels = priv->channels;
 980        priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
 981        priv->band.bitrates = priv->rates;
 982        priv->band.n_bitrates = 4;
 983        dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
 984
 985        dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
 986                     IEEE80211_HW_RX_INCLUDES_FCS |
 987                     IEEE80211_HW_SIGNAL_UNSPEC;
 988        dev->vif_data_size = sizeof(struct rtl8180_vif);
 989        dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 990                                        BIT(NL80211_IFTYPE_ADHOC);
 991        dev->queues = 1;
 992        dev->max_signal = 65;
 993
 994        reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
 995        reg &= RTL818X_TX_CONF_HWVER_MASK;
 996        switch (reg) {
 997        case RTL818X_TX_CONF_R8180_ABCD:
 998                chip_name = "RTL8180";
 999                break;
1000        case RTL818X_TX_CONF_R8180_F:
1001                chip_name = "RTL8180vF";
1002                break;
1003        case RTL818X_TX_CONF_R8185_ABC:
1004                chip_name = "RTL8185";
1005                break;
1006        case RTL818X_TX_CONF_R8185_D:
1007                chip_name = "RTL8185vD";
1008                break;
1009        default:
1010                printk(KERN_ERR "%s (rtl8180): Unknown chip! (0x%x)\n",
1011                       pci_name(pdev), reg >> 25);
1012                goto err_iounmap;
1013        }
1014
1015        priv->r8185 = reg & RTL818X_TX_CONF_R8185_ABC;
1016        if (priv->r8185) {
1017                priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1018                pci_try_set_mwi(pdev);
1019        }
1020
1021        eeprom.data = dev;
1022        eeprom.register_read = rtl8180_eeprom_register_read;
1023        eeprom.register_write = rtl8180_eeprom_register_write;
1024        if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1025                eeprom.width = PCI_EEPROM_WIDTH_93C66;
1026        else
1027                eeprom.width = PCI_EEPROM_WIDTH_93C46;
1028
1029        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_PROGRAM);
1030        rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1031        udelay(10);
1032
1033        eeprom_93cx6_read(&eeprom, 0x06, &eeprom_val);
1034        eeprom_val &= 0xFF;
1035        switch (eeprom_val) {
1036        case 1: rf_name = "Intersil";
1037                break;
1038        case 2: rf_name = "RFMD";
1039                break;
1040        case 3: priv->rf = &sa2400_rf_ops;
1041                break;
1042        case 4: priv->rf = &max2820_rf_ops;
1043                break;
1044        case 5: priv->rf = &grf5101_rf_ops;
1045                break;
1046        case 9: priv->rf = rtl8180_detect_rf(dev);
1047                break;
1048        case 10:
1049                rf_name = "RTL8255";
1050                break;
1051        default:
1052                printk(KERN_ERR "%s (rtl8180): Unknown RF! (0x%x)\n",
1053                       pci_name(pdev), eeprom_val);
1054                goto err_iounmap;
1055        }
1056
1057        if (!priv->rf) {
1058                printk(KERN_ERR "%s (rtl8180): %s RF frontend not supported!\n",
1059                       pci_name(pdev), rf_name);
1060                goto err_iounmap;
1061        }
1062
1063        eeprom_93cx6_read(&eeprom, 0x17, &eeprom_val);
1064        priv->csthreshold = eeprom_val >> 8;
1065        if (!priv->r8185) {
1066                __le32 anaparam;
1067                eeprom_93cx6_multiread(&eeprom, 0xD, (__le16 *)&anaparam, 2);
1068                priv->anaparam = le32_to_cpu(anaparam);
1069                eeprom_93cx6_read(&eeprom, 0x19, &priv->rfparam);
1070        }
1071
1072        eeprom_93cx6_multiread(&eeprom, 0x7, (__le16 *)mac_addr, 3);
1073        if (!is_valid_ether_addr(mac_addr)) {
1074                printk(KERN_WARNING "%s (rtl8180): Invalid hwaddr! Using"
1075                       " randomly generated MAC addr\n", pci_name(pdev));
1076                random_ether_addr(mac_addr);
1077        }
1078        SET_IEEE80211_PERM_ADDR(dev, mac_addr);
1079
1080        /* CCK TX power */
1081        for (i = 0; i < 14; i += 2) {
1082                u16 txpwr;
1083                eeprom_93cx6_read(&eeprom, 0x10 + (i >> 1), &txpwr);
1084                priv->channels[i].hw_value = txpwr & 0xFF;
1085                priv->channels[i + 1].hw_value = txpwr >> 8;
1086        }
1087
1088        /* OFDM TX power */
1089        if (priv->r8185) {
1090                for (i = 0; i < 14; i += 2) {
1091                        u16 txpwr;
1092                        eeprom_93cx6_read(&eeprom, 0x20 + (i >> 1), &txpwr);
1093                        priv->channels[i].hw_value |= (txpwr & 0xFF) << 8;
1094                        priv->channels[i + 1].hw_value |= txpwr & 0xFF00;
1095                }
1096        }
1097
1098        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1099
1100        spin_lock_init(&priv->lock);
1101
1102        err = ieee80211_register_hw(dev);
1103        if (err) {
1104                printk(KERN_ERR "%s (rtl8180): Cannot register device\n",
1105                       pci_name(pdev));
1106                goto err_iounmap;
1107        }
1108
1109        wiphy_info(dev->wiphy, "hwaddr %pm, %s + %s\n",
1110                   mac_addr, chip_name, priv->rf->name);
1111
1112        return 0;
1113
1114 err_iounmap:
1115        iounmap(priv->map);
1116
1117 err_free_dev:
1118        pci_set_drvdata(pdev, NULL);
1119        ieee80211_free_hw(dev);
1120
1121 err_free_reg:
1122        pci_release_regions(pdev);
1123        pci_disable_device(pdev);
1124        return err;
1125}
1126
1127static void __devexit rtl8180_remove(struct pci_dev *pdev)
1128{
1129        struct ieee80211_hw *dev = pci_get_drvdata(pdev);
1130        struct rtl8180_priv *priv;
1131
1132        if (!dev)
1133                return;
1134
1135        ieee80211_unregister_hw(dev);
1136
1137        priv = dev->priv;
1138
1139        pci_iounmap(pdev, priv->map);
1140        pci_release_regions(pdev);
1141        pci_disable_device(pdev);
1142        ieee80211_free_hw(dev);
1143}
1144
1145#ifdef CONFIG_PM
1146static int rtl8180_suspend(struct pci_dev *pdev, pm_message_t state)
1147{
1148        pci_save_state(pdev);
1149        pci_set_power_state(pdev, pci_choose_state(pdev, state));
1150        return 0;
1151}
1152
1153static int rtl8180_resume(struct pci_dev *pdev)
1154{
1155        pci_set_power_state(pdev, PCI_D0);
1156        pci_restore_state(pdev);
1157        return 0;
1158}
1159
1160#endif /* CONFIG_PM */
1161
1162static struct pci_driver rtl8180_driver = {
1163        .name           = KBUILD_MODNAME,
1164        .id_table       = rtl8180_table,
1165        .probe          = rtl8180_probe,
1166        .remove         = __devexit_p(rtl8180_remove),
1167#ifdef CONFIG_PM
1168        .suspend        = rtl8180_suspend,
1169        .resume         = rtl8180_resume,
1170#endif /* CONFIG_PM */
1171};
1172
1173static int __init rtl8180_init(void)
1174{
1175        return pci_register_driver(&rtl8180_driver);
1176}
1177
1178static void __exit rtl8180_exit(void)
1179{
1180        pci_unregister_driver(&rtl8180_driver);
1181}
1182
1183module_init(rtl8180_init);
1184module_exit(rtl8180_exit);
1185