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 new_flags;
  87
  88         new_flags = 0;
  89
  90         if (*total_flags & FIF_PROMISC_IN_BSS)
  91                 new_flags |= FIF_PROMISC_IN_BSS;
  92         else if ((*total_flags & FIF_ALLMULTI) || (mc_count > 32))
  93                 new_flags |= FIF_ALLMULTI;
  94
  95         dev->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS;
  96
  97         *total_flags = new_flags;
  98 }
  99
 100 static int wbsoft_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 101 {
 102         struct wbsoft_priv *priv = dev->priv;
 103
 104         MLMESendFrame(priv, skb->data, skb->len, FRAME_TYPE_802_11_MANAGEMENT);
 105
 106         return NETDEV_TX_OK;
 107 }
 108
 109
 110 static int wbsoft_start(struct ieee80211_hw *dev)
 111 {
 112         struct wbsoft_priv *priv = dev->priv;
 113
 114         priv->enabled = true;
 115
 116         return 0;
 117 }
 118
 119 static int wbsoft_config(struct ieee80211_hw *dev, u32 changed)
 120 {
 121         struct wbsoft_priv *priv = dev->priv;
 122         struct ieee80211_conf *conf = &dev->conf;
 123         ChanInfo ch;
 124
 125         printk("wbsoft_config called\n");
 126
 127         ch.band = 1;
 128         ch.ChanNo = 1;  /* Should use channel_num, or something, as that is already pre-translated */
 129
 130
 131         hal_set_current_channel(&priv->sHwData, ch);
 132         hal_set_beacon_period(&priv->sHwData, conf->beacon_int);
 133 //      hal_set_cap_info(&priv->sHwData, ?? );
 134 // hal_set_ssid(struct hw_data * pHwData,  u8 * pssid,  u8 ssid_len); ??
 135         hal_set_accept_broadcast(&priv->sHwData, 1);
 136         hal_set_accept_promiscuous(&priv->sHwData,  1);
 137         hal_set_accept_multicast(&priv->sHwData,  1);
 138         hal_set_accept_beacon(&priv->sHwData,  1);
 139         hal_set_radio_mode(&priv->sHwData,  0);
 140         //hal_set_antenna_number(  struct hw_data * pHwData, u8 number )
 141         //hal_set_rf_power(struct hw_data * pHwData, u8 PowerIndex)
 142
 143
 144 //      hal_start_bss(&priv->sHwData, WLAN_BSSTYPE_INFRASTRUCTURE);     ??
 145
 146 //void hal_set_rates(struct hw_data * pHwData, u8 * pbss_rates,
 147 //                 u8 length, unsigned char basic_rate_set)
 148
 149         return 0;
 150 }
 151
 152 static int wbsoft_config_interface(struct ieee80211_hw *dev,
 153                                     struct ieee80211_vif *vif,
 154                                     struct ieee80211_if_conf *conf)
 155 {
 156         printk("wbsoft_config_interface called\n");
 157         return 0;
 158 }
 159
 160 static u64 wbsoft_get_tsf(struct ieee80211_hw *dev)
 161 {
 162         printk("wbsoft_get_tsf called\n");
 163         return 0;
 164 }
 165
 166 static const struct ieee80211_ops wbsoft_ops = {
 167         .tx                     = wbsoft_tx,
 168         .start                  = wbsoft_start,         /* Start can be pretty much empty as we do wb35_hw_init() during probe? */
 169         .stop                   = wbsoft_stop,
 170         .add_interface          = wbsoft_add_interface,
 171         .remove_interface       = wbsoft_remove_interface,
 172         .config                 = wbsoft_config,
 173         .config_interface       = wbsoft_config_interface,
 174         .configure_filter       = wbsoft_configure_filter,
 175         .get_stats              = wbsoft_get_stats,
 176         .get_tx_stats           = wbsoft_get_tx_stats,
 177         .get_tsf                = wbsoft_get_tsf,
 178 // conf_tx: hal_set_cwmin()/hal_set_cwmax;
 179 };
 180
 181 static unsigned char wb35_hw_init(struct ieee80211_hw *hw)
 182 {
 183         struct wbsoft_priv *priv = hw->priv;
 184         struct hw_data *        pHwData;
 185         u8              *pMacAddr;
 186         u8              *pMacAddr2;
 187         u32             InitStep = 0;
 188         u8              EEPROM_region;
 189         u8              HwRadioOff;
 190
 191         //
 192         // Setting default value for Linux
 193         //
 194         priv->sLocalPara.region_INF = REGION_AUTO;
 195         priv->sLocalPara.TxRateMode = RATE_AUTO;
 196         priv->sLocalPara.bMacOperationMode = MODE_802_11_BG;    // B/G mode
 197         priv->Mds.TxRTSThreshold = DEFAULT_RTSThreshold;
 198         priv->Mds.TxFragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD;
 199         hal_set_phy_type( &priv->sHwData, RF_WB_242_1 );
 200         priv->sLocalPara.MTUsize = MAX_ETHERNET_PACKET_SIZE;
 201         priv->sLocalPara.bPreambleMode = AUTO_MODE;
 202         priv->sLocalPara.RadioOffStatus.boSwRadioOff = false;
 203         pHwData = &priv->sHwData;
 204         hal_set_phy_type( pHwData, RF_DECIDE_BY_INF );
 205
 206         //added by ws for wep key error detection
 207         priv->sLocalPara.bWepKeyError= false;
 208         priv->sLocalPara.bToSelfPacketReceived = false;
 209         priv->sLocalPara.WepKeyDetectTimerCount= 2 * 100; /// 2 seconds
 210
 211         // Initial USB hal
 212         InitStep = 1;
 213         pHwData = &priv->sHwData;
 214         if (!hal_init_hardware(hw))
 215                 goto error;
 216
 217         EEPROM_region = hal_get_region_from_EEPROM( pHwData );
 218         if (EEPROM_region != REGION_AUTO)
 219                 priv->sLocalPara.region = EEPROM_region;
 220         else {
 221                 if (priv->sLocalPara.region_INF != REGION_AUTO)
 222                         priv->sLocalPara.region = priv->sLocalPara.region_INF;
 223                 else
 224                         priv->sLocalPara.region = REGION_USA;   //default setting
 225         }
 226
 227         // Get Software setting flag from hal
 228         priv->sLocalPara.boAntennaDiversity = false;
 229         if (hal_software_set(pHwData) & 0x00000001)
 230                 priv->sLocalPara.boAntennaDiversity = true;
 231
 232         //
 233         // For TS module
 234         //
 235         InitStep = 2;
 236
 237         // For MDS module
 238         InitStep = 3;
 239         Mds_initial(priv);
 240
 241         //=======================================
 242         // Initialize the SME, SCAN, MLME, ROAM
 243         //=======================================
 244         InitStep = 4;
 245         InitStep = 5;
 246         InitStep = 6;
 247
 248         // If no user-defined address in the registry, use the addresss "burned" on the NIC instead.
 249         pMacAddr = priv->sLocalPara.ThisMacAddress;
 250         pMacAddr2 = priv->sLocalPara.PermanentAddress;
 251         hal_get_permanent_address( pHwData, priv->sLocalPara.PermanentAddress );// Reading ethernet address from EEPROM
 252         if (memcmp(pMacAddr, "\x00\x00\x00\x00\x00\x00", MAC_ADDR_LENGTH) == 0)
 253                 memcpy(pMacAddr, pMacAddr2, MAC_ADDR_LENGTH);
 254         else {
 255                 // Set the user define MAC address
 256                 hal_set_ethernet_address(pHwData, priv->sLocalPara.ThisMacAddress);
 257         }
 258
 259         //get current antenna
 260         priv->sLocalPara.bAntennaNo = hal_get_antenna_number(pHwData);
 261 #ifdef _PE_STATE_DUMP_
 262         printk("Driver init, antenna no = %d\n", psLOCAL->bAntennaNo);
 263 #endif
 264         hal_get_hw_radio_off( pHwData );
 265
 266         // Waiting for HAL setting OK
 267         while (!hal_idle(pHwData))
 268                 msleep(10);
 269
 270         MTO_Init(priv);
 271
 272         HwRadioOff = hal_get_hw_radio_off( pHwData );
 273         priv->sLocalPara.RadioOffStatus.boHwRadioOff = !!HwRadioOff;
 274
 275         hal_set_radio_mode( pHwData, (unsigned char)(priv->sLocalPara.RadioOffStatus.boSwRadioOff || priv->sLocalPara.RadioOffStatus.boHwRadioOff) );
 276
 277         hal_driver_init_OK(pHwData) = 1; // Notify hal that the driver is ready now.
 278         //set a tx power for reference.....
 279 //      sme_set_tx_power_level(priv, 12);       FIXME?
 280         return true;
 281
 282 error:
 283         switch (InitStep) {
 284         case 5:
 285         case 4:
 286         case 3: Mds_Destroy( priv );
 287         case 2:
 288         case 1: hal_halt( pHwData, NULL );
 289         case 0: break;
 290         }
 291
 292         return false;
 293 }
 294
 295 static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id_table)
 296 {
 297         struct wb_usb *pWbUsb;
 298         struct usb_host_interface *interface;
 299         struct usb_endpoint_descriptor *endpoint;
 300         u32     ltmp;
 301         struct usb_device *udev = interface_to_usbdev(intf);
 302         struct wbsoft_priv *priv;
 303         struct ieee80211_hw *dev;
 304         int nr, err;
 305
 306         usb_get_dev(udev);
 307
 308         // 20060630.2 Check the device if it already be opened
 309         nr = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
 310                              0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
 311                              0x0, 0x400, &ltmp, 4, HZ*100 );
 312         if (nr < 0) {
 313                 err = nr;
 314                 goto error;
 315         }
 316
 317         ltmp = cpu_to_le32(ltmp);
 318         if (ltmp) {  // Is already initialized?
 319                 err = -EBUSY;
 320                 goto error;
 321         }
 322
 323         dev = ieee80211_alloc_hw(sizeof(*priv), &wbsoft_ops);
 324         if (!dev) {
 325                 err = -ENOMEM;
 326                 goto error;
 327         }
 328
 329         priv = dev->priv;
 330
 331         spin_lock_init(&priv->SpinLock);
 332
 333         pWbUsb = &priv->sHwData.WbUsb;
 334         pWbUsb->udev = udev;
 335
 336         interface = intf->cur_altsetting;
 337         endpoint = &interface->endpoint[0].desc;
 338
 339         if (endpoint[2].wMaxPacketSize == 512) {
 340                 printk("[w35und] Working on USB 2.0\n");
 341                 pWbUsb->IsUsb20 = 1;
 342         }
 343
 344         if (!wb35_hw_init(dev)) {
 345                 err = -EINVAL;
 346                 goto error_free_hw;
 347         }
 348
 349         SET_IEEE80211_DEV(dev, &udev->dev);
 350         {
 351                 struct hw_data * pHwData = &priv->sHwData;
 352                 unsigned char           dev_addr[MAX_ADDR_LEN];
 353                 hal_get_permanent_address(pHwData, dev_addr);
 354                 SET_IEEE80211_PERM_ADDR(dev, dev_addr);
 355         }
 356
 357         dev->extra_tx_headroom = 12;    /* FIXME */
 358         dev->flags = IEEE80211_HW_SIGNAL_UNSPEC;
 359         dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
 360
 361         dev->channel_change_time = 1000;
 362         dev->max_signal = 100;
 363         dev->queues = 1;
 364
 365         dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &wbsoft_band_2GHz;
 366
 367         err = ieee80211_register_hw(dev);
 368         if (err)
 369                 goto error_free_hw;
 370
 371         usb_set_intfdata(intf, dev);
 372
 373         return 0;
 374
 375 error_free_hw:
 376         ieee80211_free_hw(dev);
 377 error:
 378         usb_put_dev(udev);
 379         return err;
 380 }
 381
 382 static void wb35_hw_halt(struct wbsoft_priv *adapter)
 383 {
 384         Mds_Destroy( adapter );
 385
 386         // Turn off Rx and Tx hardware ability
 387         hal_stop( &adapter->sHwData );
 388 #ifdef _PE_USB_INI_DUMP_
 389         printk("[w35und] Hal_stop O.K.\n");
 390 #endif
 391         msleep(100);// Waiting Irp completed
 392
 393         // Halt the HAL
 394         hal_halt(&adapter->sHwData, NULL);
 395 }
 396
 397
 398 static void wb35_disconnect(struct usb_interface *intf)
 399 {
 400         struct ieee80211_hw *hw = usb_get_intfdata(intf);
 401         struct wbsoft_priv *priv = hw->priv;
 402
 403         wb35_hw_halt(priv);
 404
 405         ieee80211_stop_queues(hw);
 406         ieee80211_unregister_hw(hw);
 407         ieee80211_free_hw(hw);
 408
 409         usb_set_intfdata(intf, NULL);
 410         usb_put_dev(interface_to_usbdev(intf));
 411 }
 412
 413 static struct usb_driver wb35_driver = {
 414         .name           = "w35und",
 415         .id_table       = wb35_table,
 416         .probe          = wb35_probe,
 417         .disconnect     = wb35_disconnect,
 418 };
 419
 420 static int __init wb35_init(void)
 421 {
 422         return usb_register(&wb35_driver);
 423 }
 424
 425 static void __exit wb35_exit(void)
 426 {
 427         usb_deregister(&wb35_driver);
 428 }
 429
 430 module_init(wb35_init);
 431 module_exit(wb35_exit);