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_f.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, struct ieee80211_conf *conf)
 138 {
 139         struct wbsoft_priv *priv = dev->priv;
 140
 141         ChanInfo ch;
 142         printk("wbsoft_config called\n");
 143
 144         ch.band = 1;
 145         ch.ChanNo = 1;  /* Should use channel_num, or something, as that is already pre-translated */
 146
 147
 148         hal_set_current_channel(&priv->sHwData, ch);
 149         hal_set_beacon_period(&priv->sHwData, conf->beacon_int);
 150 //      hal_set_cap_info(&priv->sHwData, ?? );
 151 // hal_set_ssid(phw_data_t pHwData,  u8 * pssid,  u8 ssid_len); ??
 152         hal_set_accept_broadcast(&priv->sHwData, 1);
 153         hal_set_accept_promiscuous(&priv->sHwData,  1);
 154         hal_set_accept_multicast(&priv->sHwData,  1);
 155         hal_set_accept_beacon(&priv->sHwData,  1);
 156         hal_set_radio_mode(&priv->sHwData,  0);
 157         //hal_set_antenna_number(  phw_data_t pHwData, u8 number )
 158         //hal_set_rf_power(phw_data_t pHwData, u8 PowerIndex)
 159
 160
 161 //      hal_start_bss(&priv->sHwData, WLAN_BSSTYPE_INFRASTRUCTURE);     ??
 162
 163 //void hal_set_rates(phw_data_t pHwData, u8 * pbss_rates,
 164 //                 u8 length, unsigned char basic_rate_set)
 165
 166         return 0;
 167 }
 168
 169 static int wbsoft_config_interface(struct ieee80211_hw *dev,
 170                                     struct ieee80211_vif *vif,
 171                                     struct ieee80211_if_conf *conf)
 172 {
 173         printk("wbsoft_config_interface called\n");
 174         return 0;
 175 }
 176
 177 static u64 wbsoft_get_tsf(struct ieee80211_hw *dev)
 178 {
 179         printk("wbsoft_get_tsf called\n");
 180         return 0;
 181 }
 182
 183 static const struct ieee80211_ops wbsoft_ops = {
 184         .tx                     = wbsoft_tx,
 185         .start                  = wbsoft_start,         /* Start can be pretty much empty as we do wb35_hw_init() during probe? */
 186         .stop                   = wbsoft_stop,
 187         .add_interface          = wbsoft_add_interface,
 188         .remove_interface       = wbsoft_remove_interface,
 189         .config                 = wbsoft_config,
 190         .config_interface       = wbsoft_config_interface,
 191         .configure_filter       = wbsoft_configure_filter,
 192         .get_stats              = wbsoft_get_stats,
 193         .get_tx_stats           = wbsoft_get_tx_stats,
 194         .get_tsf                = wbsoft_get_tsf,
 195 // conf_tx: hal_set_cwmin()/hal_set_cwmax;
 196 };
 197
 198 static unsigned char wb35_hw_init(struct ieee80211_hw *hw)
 199 {
 200         struct wbsoft_priv *priv = hw->priv;
 201         phw_data_t      pHwData;
 202         u8              *pMacAddr;
 203         u8              *pMacAddr2;
 204         u32             InitStep = 0;
 205         u8              EEPROM_region;
 206         u8              HwRadioOff;
 207
 208         //
 209         // Setting default value for Linux
 210         //
 211         priv->sLocalPara.region_INF = REGION_AUTO;
 212         priv->sLocalPara.TxRateMode = RATE_AUTO;
 213         priv->sLocalPara.bMacOperationMode = MODE_802_11_BG;    // B/G mode
 214         priv->Mds.TxRTSThreshold = DEFAULT_RTSThreshold;
 215         priv->Mds.TxFragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD;
 216         hal_set_phy_type( &priv->sHwData, RF_WB_242_1 );
 217         priv->sLocalPara.MTUsize = MAX_ETHERNET_PACKET_SIZE;
 218         priv->sLocalPara.bPreambleMode = AUTO_MODE;
 219         priv->sLocalPara.RadioOffStatus.boSwRadioOff = false;
 220         pHwData = &priv->sHwData;
 221         hal_set_phy_type( pHwData, RF_DECIDE_BY_INF );
 222
 223         //added by ws for wep key error detection
 224         priv->sLocalPara.bWepKeyError= false;
 225         priv->sLocalPara.bToSelfPacketReceived = false;
 226         priv->sLocalPara.WepKeyDetectTimerCount= 2 * 100; /// 2 seconds
 227
 228         // Initial USB hal
 229         InitStep = 1;
 230         pHwData = &priv->sHwData;
 231         if (!hal_init_hardware(hw))
 232                 goto error;
 233
 234         EEPROM_region = hal_get_region_from_EEPROM( pHwData );
 235         if (EEPROM_region != REGION_AUTO)
 236                 priv->sLocalPara.region = EEPROM_region;
 237         else {
 238                 if (priv->sLocalPara.region_INF != REGION_AUTO)
 239                         priv->sLocalPara.region = priv->sLocalPara.region_INF;
 240                 else
 241                         priv->sLocalPara.region = REGION_USA;   //default setting
 242         }
 243
 244         // Get Software setting flag from hal
 245         priv->sLocalPara.boAntennaDiversity = false;
 246         if (hal_software_set(pHwData) & 0x00000001)
 247                 priv->sLocalPara.boAntennaDiversity = true;
 248
 249         //
 250         // For TS module
 251         //
 252         InitStep = 2;
 253
 254         // For MDS module
 255         InitStep = 3;
 256         Mds_initial(priv);
 257
 258         //=======================================
 259         // Initialize the SME, SCAN, MLME, ROAM
 260         //=======================================
 261         InitStep = 4;
 262         InitStep = 5;
 263         InitStep = 6;
 264
 265         // If no user-defined address in the registry, use the addresss "burned" on the NIC instead.
 266         pMacAddr = priv->sLocalPara.ThisMacAddress;
 267         pMacAddr2 = priv->sLocalPara.PermanentAddress;
 268         hal_get_permanent_address( pHwData, priv->sLocalPara.PermanentAddress );// Reading ethernet address from EEPROM
 269         if (memcmp(pMacAddr, "\x00\x00\x00\x00\x00\x00", MAC_ADDR_LENGTH) == 0)
 270                 memcpy(pMacAddr, pMacAddr2, MAC_ADDR_LENGTH);
 271         else {
 272                 // Set the user define MAC address
 273                 hal_set_ethernet_address(pHwData, priv->sLocalPara.ThisMacAddress);
 274         }
 275
 276         //get current antenna
 277         priv->sLocalPara.bAntennaNo = hal_get_antenna_number(pHwData);
 278 #ifdef _PE_STATE_DUMP_
 279         WBDEBUG(("Driver init, antenna no = %d\n", psLOCAL->bAntennaNo));
 280 #endif
 281         hal_get_hw_radio_off( pHwData );
 282
 283         // Waiting for HAL setting OK
 284         while (!hal_idle(pHwData))
 285                 msleep(10);
 286
 287         MTO_Init(priv);
 288
 289         HwRadioOff = hal_get_hw_radio_off( pHwData );
 290         priv->sLocalPara.RadioOffStatus.boHwRadioOff = !!HwRadioOff;
 291
 292         hal_set_radio_mode( pHwData, (unsigned char)(priv->sLocalPara.RadioOffStatus.boSwRadioOff || priv->sLocalPara.RadioOffStatus.boHwRadioOff) );
 293
 294         hal_driver_init_OK(pHwData) = 1; // Notify hal that the driver is ready now.
 295         //set a tx power for reference.....
 296 //      sme_set_tx_power_level(priv, 12);       FIXME?
 297         return true;
 298
 299 error:
 300         switch (InitStep) {
 301         case 5:
 302         case 4:
 303         case 3: Mds_Destroy( priv );
 304         case 2:
 305         case 1: WBLINUX_stop(priv);
 306                 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         PWBUSB          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 err;
 323
 324         usb_get_dev(udev);
 325
 326         // 20060630.2 Check the device if it already be opened
 327         err = 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 (err)
 331                 goto error;
 332
 333         ltmp = cpu_to_le32(ltmp);
 334         if (ltmp) {  // Is already initialized?
 335                 err = -EBUSY;
 336                 goto error;
 337         }
 338
 339         dev = ieee80211_alloc_hw(sizeof(*priv), &wbsoft_ops);
 340         if (!dev)
 341                 goto error;
 342
 343         priv = dev->priv;
 344
 345         spin_lock_init(&priv->SpinLock);
 346
 347         pWbUsb = &priv->sHwData.WbUsb;
 348         pWbUsb->udev = udev;
 349
 350         interface = intf->cur_altsetting;
 351         endpoint = &interface->endpoint[0].desc;
 352
 353         if (endpoint[2].wMaxPacketSize == 512) {
 354                 printk("[w35und] Working on USB 2.0\n");
 355                 pWbUsb->IsUsb20 = 1;
 356         }
 357
 358         if (!wb35_hw_init(dev)) {
 359                 err = -EINVAL;
 360                 goto error_free_hw;
 361         }
 362
 363         SET_IEEE80211_DEV(dev, &udev->dev);
 364         {
 365                 phw_data_t pHwData = &priv->sHwData;
 366                 unsigned char           dev_addr[MAX_ADDR_LEN];
 367                 hal_get_permanent_address(pHwData, dev_addr);
 368                 SET_IEEE80211_PERM_ADDR(dev, dev_addr);
 369         }
 370
 371         dev->extra_tx_headroom = 12;    /* FIXME */
 372         dev->flags = 0;
 373
 374         dev->channel_change_time = 1000;
 375         dev->queues = 1;
 376
 377         dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &wbsoft_band_2GHz;
 378
 379         err = ieee80211_register_hw(dev);
 380         if (err)
 381                 goto error_free_hw;
 382
 383         usb_set_intfdata(intf, priv);
 384
 385         return 0;
 386
 387 error_free_hw:
 388         ieee80211_free_hw(dev);
 389 error:
 390         usb_put_dev(udev);
 391         return err;
 392 }
 393
 394 void packet_came(struct ieee80211_hw *hw, char *pRxBufferAddress, int PacketSize)
 395 {
 396         struct wbsoft_priv *priv = hw->priv;
 397         struct sk_buff *skb;
 398         struct ieee80211_rx_status rx_status = {0};
 399
 400         if (!priv->enabled)
 401                 return;
 402
 403         skb = dev_alloc_skb(PacketSize);
 404         if (!skb) {
 405                 printk("Not enough memory for packet, FIXME\n");
 406                 return;
 407         }
 408
 409         memcpy(skb_put(skb, PacketSize),
 410                pRxBufferAddress,
 411                PacketSize);
 412
 413 /*
 414         rx_status.rate = 10;
 415         rx_status.channel = 1;
 416         rx_status.freq = 12345;
 417         rx_status.phymode = MODE_IEEE80211B;
 418 */
 419
 420         ieee80211_rx_irqsafe(hw, skb, &rx_status);
 421 }
 422
 423 static void wb35_hw_halt(struct wbsoft_priv *adapter)
 424 {
 425         Mds_Destroy( adapter );
 426
 427         // Turn off Rx and Tx hardware ability
 428         hal_stop( &adapter->sHwData );
 429 #ifdef _PE_USB_INI_DUMP_
 430         WBDEBUG(("[w35und] Hal_stop O.K.\n"));
 431 #endif
 432         msleep(100);// Waiting Irp completed
 433
 434         // Destroy the NDIS module
 435         WBLINUX_stop(adapter);
 436
 437         // Halt the HAL
 438         hal_halt(&adapter->sHwData, NULL);
 439 }
 440
 441
 442 static void wb35_disconnect(struct usb_interface *intf)
 443 {
 444         struct wbsoft_priv *priv = usb_get_intfdata(intf);
 445
 446         wb35_hw_halt(priv);
 447
 448         usb_set_intfdata(intf, NULL);
 449         usb_put_dev(interface_to_usbdev(intf));
 450 }
 451
 452 static struct usb_driver wb35_driver = {
 453         .name           = "w35und",
 454         .id_table       = wb35_table,
 455         .probe          = wb35_probe,
 456         .disconnect     = wb35_disconnect,
 457 };
 458
 459 static int __init wb35_init(void)
 460 {
 461         return usb_register(&wb35_driver);
 462 }
 463
 464 static void __exit wb35_exit(void)
 465 {
 466         usb_deregister(&wb35_driver);
 467 }
 468
 469 module_init(wb35_init);
 470 module_exit(wb35_exit);