drivers/staging/winbond/wbusb.c

   1 /*
   2  * Copyright 2008 Pavel Machek <pavel@suse.cz>
   3  *
   4  * Distribute under GPLv2.
   5  */
   6 #include <net/mac80211.h>
   7 #include <linux/usb.h>
   8
   9 #include "core.h"
  10 #include "mds_f.h"
  11 #include "mlmetxrx_f.h"
  12 #include "mto.h"
  13 #include "wbhal_f.h"
  14 #include "wblinux_f.h"
  15
  16 MODULE_AUTHOR("Original by: Jeff Lee<YY_Lee@issc.com.tw> Adapted to 2.6.x by Costantino Leandro (Rxart Desktop) <le_costantino@pixartargentina.com.ar>");
  17 MODULE_DESCRIPTION("IS89C35 802.11bg WLAN USB Driver");
  18 MODULE_LICENSE("GPL");
  19 MODULE_VERSION("0.1");
  20
  21 static struct usb_device_id wb35_table[] __devinitdata = {
  22         {USB_DEVICE(0x0416, 0x0035)},
  23         {USB_DEVICE(0x18E8, 0x6201)},
  24         {USB_DEVICE(0x18E8, 0x6206)},
  25         {USB_DEVICE(0x18E8, 0x6217)},
  26         {USB_DEVICE(0x18E8, 0x6230)},
  27         {USB_DEVICE(0x18E8, 0x6233)},
  28         {USB_DEVICE(0x1131, 0x2035)},
  29         { 0, }
  30 };
  31
  32 MODULE_DEVICE_TABLE(usb, wb35_table);
  33
  34 static struct ieee80211_rate wbsoft_rates[] = {
  35         { .bitrate = 10, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
  36 };
  37
  38 static struct ieee80211_channel wbsoft_channels[] = {
  39         { .center_freq = 2412},
  40 };
  41
  42 static struct ieee80211_supported_band wbsoft_band_2GHz = {
  43         .channels       = wbsoft_channels,
  44         .n_channels     = ARRAY_SIZE(wbsoft_channels),
  45         .bitrates       = wbsoft_rates,
  46         .n_bitrates     = ARRAY_SIZE(wbsoft_rates),
  47 };
  48
  49 static int wbsoft_add_interface(struct ieee80211_hw *dev,
  50                                  struct ieee80211_if_init_conf *conf)
  51 {
  52         printk("wbsoft_add interface called\n");
  53         return 0;
  54 }
  55
  56 static void wbsoft_remove_interface(struct ieee80211_hw *dev,
  57                                      struct ieee80211_if_init_conf *conf)
  58 {
  59         printk("wbsoft_remove interface called\n");
  60 }
  61
  62 static void wbsoft_stop(struct ieee80211_hw *hw)
  63 {
  64         printk(KERN_INFO "%s called\n", __func__);
  65 }
  66
  67 static int wbsoft_get_stats(struct ieee80211_hw *hw,
  68                             struct ieee80211_low_level_stats *stats)
  69 {
  70         printk(KERN_INFO "%s called\n", __func__);
  71         return 0;
  72 }
  73
  74 static int wbsoft_get_tx_stats(struct ieee80211_hw *hw,
  75                                struct ieee80211_tx_queue_stats *stats)
  76 {
  77         printk(KERN_INFO "%s called\n", __func__);
  78         return 0;
  79 }
  80
  81 static void wbsoft_configure_filter(struct ieee80211_hw *dev,
  82                                      unsigned int changed_flags,
  83                                      unsigned int *total_flags,
  84                                      int mc_count, struct dev_mc_list *mclist)
  85 {
  86         unsigned int bit_nr, new_flags;
  87         u32 mc_filter[2];
  88         int i;
  89
  90         new_flags = 0;
  91
  92         if (*total_flags & FIF_PROMISC_IN_BSS) {
  93                 new_flags |= FIF_PROMISC_IN_BSS;
  94                 mc_filter[1] = mc_filter[0] = ~0;
  95         } else if ((*total_flags & FIF_ALLMULTI) || (mc_count > 32)) {
  96                 new_flags |= FIF_ALLMULTI;
  97                 mc_filter[1] = mc_filter[0] = ~0;
  98         } else {
  99                 mc_filter[1] = mc_filter[0] = 0;
 100                 for (i = 0; i < mc_count; i++) {
 101                         if (!mclist)
 102                                 break;
 103                         printk("Should call ether_crc here\n");
 104                         //bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
 105                         bit_nr = 0;
 106
 107                         bit_nr &= 0x3F;
 108                         mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
 109                         mclist = mclist->next;
 110                 }
 111         }
 112
 113         dev->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS;
 114
 115         *total_flags = new_flags;
 116 }
 117
 118 static int wbsoft_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 119 {
 120         struct wbsoft_priv *priv = dev->priv;
 121
 122         MLMESendFrame(priv, skb->data, skb->len, FRAME_TYPE_802_11_MANAGEMENT);
 123
 124         return NETDEV_TX_OK;
 125 }
 126
 127
 128 static int wbsoft_start(struct ieee80211_hw *dev)
 129 {
 130         struct wbsoft_priv *priv = dev->priv;
 131
 132         priv->enabled = true;
 133
 134         return 0;
 135 }
 136
 137 static int wbsoft_config(struct ieee80211_hw *dev, u32 changed)
 138 {
 139         struct wbsoft_priv *priv = dev->priv;
 140         struct ieee80211_conf *conf = &dev->conf;
 141         ChanInfo ch;
 142
 143         printk("wbsoft_config called\n");
 144
 145         ch.band = 1;
 146         ch.ChanNo = 1;  /* Should use channel_num, or something, as that is already pre-translated */
 147
 148
 149         hal_set_current_channel(&priv->sHwData, ch);
 150         hal_set_beacon_period(&priv->sHwData, conf->beacon_int);
 151 //      hal_set_cap_info(&priv->sHwData, ?? );
 152 // hal_set_ssid(struct hw_data * pHwData,  u8 * pssid,  u8 ssid_len); ??
 153         hal_set_accept_broadcast(&priv->sHwData, 1);
 154         hal_set_accept_promiscuous(&priv->sHwData,  1);
 155         hal_set_accept_multicast(&priv->sHwData,  1);
 156         hal_set_accept_beacon(&priv->sHwData,  1);
 157         hal_set_radio_mode(&priv->sHwData,  0);
 158         //hal_set_antenna_number(  struct hw_data * pHwData, u8 number )
 159         //hal_set_rf_power(struct hw_data * pHwData, u8 PowerIndex)
 160
 161
 162 //      hal_start_bss(&priv->sHwData, WLAN_BSSTYPE_INFRASTRUCTURE);     ??
 163
 164 //void hal_set_rates(struct hw_data * pHwData, u8 * pbss_rates,
 165 //                 u8 length, unsigned char basic_rate_set)
 166
 167         return 0;
 168 }
 169
 170 static int wbsoft_config_interface(struct ieee80211_hw *dev,
 171                                     struct ieee80211_vif *vif,
 172                                     struct ieee80211_if_conf *conf)
 173 {
 174         printk("wbsoft_config_interface called\n");
 175         return 0;
 176 }
 177
 178 static u64 wbsoft_get_tsf(struct ieee80211_hw *dev)
 179 {
 180         printk("wbsoft_get_tsf called\n");
 181         return 0;
 182 }
 183
 184 static const struct ieee80211_ops wbsoft_ops = {
 185         .tx                     = wbsoft_tx,
 186         .start                  = wbsoft_start,         /* Start can be pretty much empty as we do wb35_hw_init() during probe? */
 187         .stop                   = wbsoft_stop,
 188         .add_interface          = wbsoft_add_interface,
 189         .remove_interface       = wbsoft_remove_interface,
 190         .config                 = wbsoft_config,
 191         .config_interface       = wbsoft_config_interface,
 192         .configure_filter       = wbsoft_configure_filter,
 193         .get_stats              = wbsoft_get_stats,
 194         .get_tx_stats           = wbsoft_get_tx_stats,
 195         .get_tsf                = wbsoft_get_tsf,
 196 // conf_tx: hal_set_cwmin()/hal_set_cwmax;
 197 };
 198
 199 static unsigned char wb35_hw_init(struct ieee80211_hw *hw)
 200 {
 201         struct wbsoft_priv *priv = hw->priv;
 202         struct hw_data *        pHwData;
 203         u8              *pMacAddr;
 204         u8              *pMacAddr2;
 205         u32             InitStep = 0;
 206         u8              EEPROM_region;
 207         u8              HwRadioOff;
 208
 209         //
 210         // Setting default value for Linux
 211         //
 212         priv->sLocalPara.region_INF = REGION_AUTO;
 213         priv->sLocalPara.TxRateMode = RATE_AUTO;
 214         priv->sLocalPara.bMacOperationMode = MODE_802_11_BG;    // B/G mode
 215         priv->Mds.TxRTSThreshold = DEFAULT_RTSThreshold;
 216         priv->Mds.TxFragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD;
 217         hal_set_phy_type( &priv->sHwData, RF_WB_242_1 );
 218         priv->sLocalPara.MTUsize = MAX_ETHERNET_PACKET_SIZE;
 219         priv->sLocalPara.bPreambleMode = AUTO_MODE;
 220         priv->sLocalPara.RadioOffStatus.boSwRadioOff = false;
 221         pHwData = &priv->sHwData;
 222         hal_set_phy_type( pHwData, RF_DECIDE_BY_INF );
 223
 224         //added by ws for wep key error detection
 225         priv->sLocalPara.bWepKeyError= false;
 226         priv->sLocalPara.bToSelfPacketReceived = false;
 227         priv->sLocalPara.WepKeyDetectTimerCount= 2 * 100; /// 2 seconds
 228
 229         // Initial USB hal
 230         InitStep = 1;
 231         pHwData = &priv->sHwData;
 232         if (!hal_init_hardware(hw))
 233                 goto error;
 234
 235         EEPROM_region = hal_get_region_from_EEPROM( pHwData );
 236         if (EEPROM_region != REGION_AUTO)
 237                 priv->sLocalPara.region = EEPROM_region;
 238         else {
 239                 if (priv->sLocalPara.region_INF != REGION_AUTO)
 240                         priv->sLocalPara.region = priv->sLocalPara.region_INF;
 241                 else
 242                         priv->sLocalPara.region = REGION_USA;   //default setting
 243         }
 244
 245         // Get Software setting flag from hal
 246         priv->sLocalPara.boAntennaDiversity = false;
 247         if (hal_software_set(pHwData) & 0x00000001)
 248                 priv->sLocalPara.boAntennaDiversity = true;
 249
 250         //
 251         // For TS module
 252         //
 253         InitStep = 2;
 254
 255         // For MDS module
 256         InitStep = 3;
 257         Mds_initial(priv);
 258
 259         //=======================================
 260         // Initialize the SME, SCAN, MLME, ROAM
 261         //=======================================
 262         InitStep = 4;
 263         InitStep = 5;
 264         InitStep = 6;
 265
 266         // If no user-defined address in the registry, use the addresss "burned" on the NIC instead.
 267         pMacAddr = priv->sLocalPara.ThisMacAddress;
 268         pMacAddr2 = priv->sLocalPara.PermanentAddress;
 269         hal_get_permanent_address( pHwData, priv->sLocalPara.PermanentAddress );// Reading ethernet address from EEPROM
 270         if (memcmp(pMacAddr, "\x00\x00\x00\x00\x00\x00", MAC_ADDR_LENGTH) == 0)
 271                 memcpy(pMacAddr, pMacAddr2, MAC_ADDR_LENGTH);
 272         else {
 273                 // Set the user define MAC address
 274                 hal_set_ethernet_address(pHwData, priv->sLocalPara.ThisMacAddress);
 275         }
 276
 277         //get current antenna
 278         priv->sLocalPara.bAntennaNo = hal_get_antenna_number(pHwData);
 279 #ifdef _PE_STATE_DUMP_
 280         printk("Driver init, antenna no = %d\n", psLOCAL->bAntennaNo);
 281 #endif
 282         hal_get_hw_radio_off( pHwData );
 283
 284         // Waiting for HAL setting OK
 285         while (!hal_idle(pHwData))
 286                 msleep(10);
 287
 288         MTO_Init(priv);
 289
 290         HwRadioOff = hal_get_hw_radio_off( pHwData );
 291         priv->sLocalPara.RadioOffStatus.boHwRadioOff = !!HwRadioOff;
 292
 293         hal_set_radio_mode( pHwData, (unsigned char)(priv->sLocalPara.RadioOffStatus.boSwRadioOff || priv->sLocalPara.RadioOffStatus.boHwRadioOff) );
 294
 295         hal_driver_init_OK(pHwData) = 1; // Notify hal that the driver is ready now.
 296         //set a tx power for reference.....
 297 //      sme_set_tx_power_level(priv, 12);       FIXME?
 298         return true;
 299
 300 error:
 301         switch (InitStep) {
 302         case 5:
 303         case 4:
 304         case 3: Mds_Destroy( priv );
 305         case 2:
 306         case 1: hal_halt( pHwData, NULL );
 307         case 0: break;
 308         }
 309
 310         return false;
 311 }
 312
 313 static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id_table)
 314 {
 315         struct wb_usb *pWbUsb;
 316         struct usb_host_interface *interface;
 317         struct usb_endpoint_descriptor *endpoint;
 318         u32     ltmp;
 319         struct usb_device *udev = interface_to_usbdev(intf);
 320         struct wbsoft_priv *priv;
 321         struct ieee80211_hw *dev;
 322         int nr, err;
 323
 324         usb_get_dev(udev);
 325
 326         // 20060630.2 Check the device if it already be opened
 327         nr = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
 328                              0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
 329                              0x0, 0x400, &ltmp, 4, HZ*100 );
 330         if (nr < 0) {
 331                 err = nr;
 332                 goto error;
 333         }
 334
 335         ltmp = cpu_to_le32(ltmp);
 336         if (ltmp) {  // Is already initialized?
 337                 err = -EBUSY;
 338                 goto error;
 339         }
 340
 341         dev = ieee80211_alloc_hw(sizeof(*priv), &wbsoft_ops);
 342         if (!dev) {
 343                 err = -ENOMEM;
 344                 goto error;
 345         }
 346
 347         priv = dev->priv;
 348
 349         spin_lock_init(&priv->SpinLock);
 350
 351         pWbUsb = &priv->sHwData.WbUsb;
 352         pWbUsb->udev = udev;
 353
 354         interface = intf->cur_altsetting;
 355         endpoint = &interface->endpoint[0].desc;
 356
 357         if (endpoint[2].wMaxPacketSize == 512) {
 358                 printk("[w35und] Working on USB 2.0\n");
 359                 pWbUsb->IsUsb20 = 1;
 360         }
 361
 362         if (!wb35_hw_init(dev)) {
 363                 err = -EINVAL;
 364                 goto error_free_hw;
 365         }
 366
 367         SET_IEEE80211_DEV(dev, &udev->dev);
 368         {
 369                 struct hw_data * pHwData = &priv->sHwData;
 370                 unsigned char           dev_addr[MAX_ADDR_LEN];
 371                 hal_get_permanent_address(pHwData, dev_addr);
 372                 SET_IEEE80211_PERM_ADDR(dev, dev_addr);
 373         }
 374
 375         dev->extra_tx_headroom = 12;    /* FIXME */
 376         dev->flags = IEEE80211_HW_SIGNAL_UNSPEC;
 377         dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
 378
 379         dev->channel_change_time = 1000;
 380         dev->max_signal = 100;
 381         dev->queues = 1;
 382
 383         dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &wbsoft_band_2GHz;
 384
 385         err = ieee80211_register_hw(dev);
 386         if (err)
 387                 goto error_free_hw;
 388
 389         usb_set_intfdata(intf, dev);
 390
 391         return 0;
 392
 393 error_free_hw:
 394         ieee80211_free_hw(dev);
 395 error:
 396         usb_put_dev(udev);
 397         return err;
 398 }
 399
 400 static void wb35_hw_halt(struct wbsoft_priv *adapter)
 401 {
 402         Mds_Destroy( adapter );
 403
 404         // Turn off Rx and Tx hardware ability
 405         hal_stop( &adapter->sHwData );
 406 #ifdef _PE_USB_INI_DUMP_
 407         printk("[w35und] Hal_stop O.K.\n");
 408 #endif
 409         msleep(100);// Waiting Irp completed
 410
 411         // Halt the HAL
 412         hal_halt(&adapter->sHwData, NULL);
 413 }
 414
 415
 416 static void wb35_disconnect(struct usb_interface *intf)
 417 {
 418         struct ieee80211_hw *hw = usb_get_intfdata(intf);
 419         struct wbsoft_priv *priv = hw->priv;
 420
 421         wb35_hw_halt(priv);
 422
 423         ieee80211_stop_queues(hw);
 424         ieee80211_unregister_hw(hw);
 425         ieee80211_free_hw(hw);
 426
 427         usb_set_intfdata(intf, NULL);
 428         usb_put_dev(interface_to_usbdev(intf));
 429 }
 430
 431 static struct usb_driver wb35_driver = {
 432         .name           = "w35und",
 433         .id_table       = wb35_table,
 434         .probe          = wb35_probe,
 435         .disconnect     = wb35_disconnect,
 436 };
 437
 438 static int __init wb35_init(void)
 439 {
 440         return usb_register(&wb35_driver);
 441 }
 442
 443 static void __exit wb35_exit(void)
 444 {
 445         usb_deregister(&wb35_driver);
 446 }
 447
 448 module_init(wb35_init);
 449 module_exit(wb35_exit);