drivers/staging/winbond/linux/wbusb.c

   1 /*
   2  * Copyright 2008 Pavel Machek <pavel@suse.cz>
   3  *
   4  * Distribute under GPLv2.
   5  */
   6 #include "sysdef.h"
   7 #include <net/mac80211.h>
   8
   9 MODULE_AUTHOR(DRIVER_AUTHOR);
  10 MODULE_DESCRIPTION(DRIVER_DESC);
  11 MODULE_LICENSE("GPL");
  12 MODULE_VERSION("0.1");
  13
  14 static struct usb_device_id wb35_table[] __devinitdata = {
  15         {USB_DEVICE(0x0416, 0x0035)},
  16         {USB_DEVICE(0x18E8, 0x6201)},
  17         {USB_DEVICE(0x18E8, 0x6206)},
  18         {USB_DEVICE(0x18E8, 0x6217)},
  19         {USB_DEVICE(0x18E8, 0x6230)},
  20         {USB_DEVICE(0x18E8, 0x6233)},
  21         {USB_DEVICE(0x1131, 0x2035)},
  22         { 0, }
  23 };
  24
  25 MODULE_DEVICE_TABLE(usb, wb35_table);
  26
  27 static struct ieee80211_rate wbsoft_rates[] = {
  28         { .bitrate = 10, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
  29 };
  30
  31 static struct ieee80211_channel wbsoft_channels[] = {
  32         { .center_freq = 2412},
  33 };
  34
  35 int wbsoft_enabled;
  36 struct ieee80211_hw *my_dev;
  37 PADAPTER my_adapter;
  38
  39 static int wbsoft_add_interface(struct ieee80211_hw *dev,
  40                                  struct ieee80211_if_init_conf *conf)
  41 {
  42         printk("wbsoft_add interface called\n");
  43         return 0;
  44 }
  45
  46 static void wbsoft_remove_interface(struct ieee80211_hw *dev,
  47                                      struct ieee80211_if_init_conf *conf)
  48 {
  49         printk("wbsoft_remove interface called\n");
  50 }
  51
  52 static void wbsoft_stop(struct ieee80211_hw *hw)
  53 {
  54         printk(KERN_INFO "%s called\n", __func__);
  55 }
  56
  57 static int wbsoft_get_stats(struct ieee80211_hw *hw,
  58                             struct ieee80211_low_level_stats *stats)
  59 {
  60         printk(KERN_INFO "%s called\n", __func__);
  61         return 0;
  62 }
  63
  64 static int wbsoft_get_tx_stats(struct ieee80211_hw *hw,
  65                                struct ieee80211_tx_queue_stats *stats)
  66 {
  67         printk(KERN_INFO "%s called\n", __func__);
  68         return 0;
  69 }
  70
  71 static void wbsoft_configure_filter(struct ieee80211_hw *dev,
  72                                      unsigned int changed_flags,
  73                                      unsigned int *total_flags,
  74                                      int mc_count, struct dev_mc_list *mclist)
  75 {
  76         unsigned int bit_nr, new_flags;
  77         u32 mc_filter[2];
  78         int i;
  79
  80         new_flags = 0;
  81
  82         if (*total_flags & FIF_PROMISC_IN_BSS) {
  83                 new_flags |= FIF_PROMISC_IN_BSS;
  84                 mc_filter[1] = mc_filter[0] = ~0;
  85         } else if ((*total_flags & FIF_ALLMULTI) || (mc_count > 32)) {
  86                 new_flags |= FIF_ALLMULTI;
  87                 mc_filter[1] = mc_filter[0] = ~0;
  88         } else {
  89                 mc_filter[1] = mc_filter[0] = 0;
  90                 for (i = 0; i < mc_count; i++) {
  91                         if (!mclist)
  92                                 break;
  93                         printk("Should call ether_crc here\n");
  94                         //bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
  95                         bit_nr = 0;
  96
  97                         bit_nr &= 0x3F;
  98                         mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
  99                         mclist = mclist->next;
 100                 }
 101         }
 102
 103         dev->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS;
 104
 105         *total_flags = new_flags;
 106 }
 107
 108 static int wbsoft_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 109 {
 110         char *buffer = kmalloc(skb->len, GFP_ATOMIC);
 111         printk("Sending frame %d bytes\n", skb->len);
 112         memcpy(buffer, skb->data, skb->len);
 113         if (1 == MLMESendFrame(my_adapter, buffer, skb->len, FRAME_TYPE_802_11_MANAGEMENT))
 114                 printk("frame sent ok (%d bytes)?\n", skb->len);
 115         return NETDEV_TX_OK;
 116 }
 117
 118
 119 static int wbsoft_start(struct ieee80211_hw *dev)
 120 {
 121         wbsoft_enabled = 1;
 122         printk("wbsoft_start called\n");
 123         return 0;
 124 }
 125
 126 static int wbsoft_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
 127 {
 128         ChanInfo ch;
 129         printk("wbsoft_config called\n");
 130
 131         ch.band = 1;
 132         ch.ChanNo = 1;  /* Should use channel_num, or something, as that is already pre-translated */
 133
 134
 135         hal_set_current_channel(&my_adapter->sHwData, ch);
 136         hal_set_beacon_period(&my_adapter->sHwData, conf->beacon_int);
 137 //      hal_set_cap_info(&my_adapter->sHwData, ?? );
 138 // hal_set_ssid(phw_data_t pHwData,  u8 * pssid,  u8 ssid_len); ??
 139         hal_set_accept_broadcast(&my_adapter->sHwData, 1);
 140         hal_set_accept_promiscuous(&my_adapter->sHwData,  1);
 141         hal_set_accept_multicast(&my_adapter->sHwData,  1);
 142         hal_set_accept_beacon(&my_adapter->sHwData,  1);
 143         hal_set_radio_mode(&my_adapter->sHwData,  0);
 144         //hal_set_antenna_number(  phw_data_t pHwData, u8 number )
 145         //hal_set_rf_power(phw_data_t pHwData, u8 PowerIndex)
 146
 147
 148 //      hal_start_bss(&my_adapter->sHwData, WLAN_BSSTYPE_INFRASTRUCTURE);       ??
 149
 150 //void hal_set_rates(phw_data_t pHwData, u8 * pbss_rates,
 151 //                 u8 length, unsigned char basic_rate_set)
 152
 153         return 0;
 154 }
 155
 156 static int wbsoft_config_interface(struct ieee80211_hw *dev,
 157                                     struct ieee80211_vif *vif,
 158                                     struct ieee80211_if_conf *conf)
 159 {
 160         printk("wbsoft_config_interface called\n");
 161         return 0;
 162 }
 163
 164 static u64 wbsoft_get_tsf(struct ieee80211_hw *dev)
 165 {
 166         printk("wbsoft_get_tsf called\n");
 167         return 0;
 168 }
 169
 170 static const struct ieee80211_ops wbsoft_ops = {
 171         .tx                     = wbsoft_tx,
 172         .start                  = wbsoft_start,         /* Start can be pretty much empty as we do WbWLanInitialize() during probe? */
 173         .stop                   = wbsoft_stop,
 174         .add_interface          = wbsoft_add_interface,
 175         .remove_interface       = wbsoft_remove_interface,
 176         .config                 = wbsoft_config,
 177         .config_interface       = wbsoft_config_interface,
 178         .configure_filter       = wbsoft_configure_filter,
 179         .get_stats              = wbsoft_get_stats,
 180         .get_tx_stats           = wbsoft_get_tx_stats,
 181         .get_tsf                = wbsoft_get_tsf,
 182 // conf_tx: hal_set_cwmin()/hal_set_cwmax;
 183 };
 184
 185 struct wbsoft_priv {
 186 };
 187
 188
 189 // Usb kernel subsystem will call this function when a new device is plugged into.
 190 int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id_table)
 191 {
 192         PADAPTER        Adapter;
 193         PWBLINUX        pWbLinux;
 194         PWBUSB          pWbUsb;
 195         struct usb_host_interface *interface;
 196         struct usb_endpoint_descriptor *endpoint;
 197         int     ret = -1;
 198         u32     ltmp;
 199         struct usb_device *udev = interface_to_usbdev(intf);
 200
 201         usb_get_dev(udev);
 202
 203         printk("[w35und]wb35_probe ->\n");
 204
 205         // 20060630.2 Check the device if it already be opened
 206         ret = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
 207                               0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
 208                               0x0, 0x400, &ltmp, 4, HZ*100 );
 209         if (ret < 0)
 210                 goto error;
 211
 212         ltmp = cpu_to_le32(ltmp);
 213         if (ltmp)  // Is already initialized?
 214                 goto error;
 215
 216         Adapter = kzalloc(sizeof(ADAPTER), GFP_KERNEL);
 217
 218         my_adapter = Adapter;
 219         pWbLinux = &Adapter->WbLinux;
 220         pWbUsb = &Adapter->sHwData.WbUsb;
 221         pWbUsb->udev = udev;
 222
 223         interface = intf->cur_altsetting;
 224         endpoint = &interface->endpoint[0].desc;
 225
 226         if (endpoint[2].wMaxPacketSize == 512) {
 227                 printk("[w35und] Working on USB 2.0\n");
 228                 pWbUsb->IsUsb20 = 1;
 229         }
 230
 231         if (!WbWLanInitialize(Adapter)) {
 232                 printk("[w35und]WbWLanInitialize fail\n");
 233                 goto error;
 234         }
 235
 236         {
 237                 struct wbsoft_priv *priv;
 238                 struct ieee80211_hw *dev;
 239                 static struct ieee80211_supported_band band;
 240                 int res;
 241
 242                 dev = ieee80211_alloc_hw(sizeof(*priv), &wbsoft_ops);
 243
 244                 if (!dev) {
 245                         printk("w35und: ieee80211 alloc failed\n" );
 246                         BUG();
 247                 }
 248
 249                 my_dev = dev;
 250
 251                 SET_IEEE80211_DEV(dev, &udev->dev);
 252                 {
 253                         phw_data_t pHwData = &Adapter->sHwData;
 254                         unsigned char           dev_addr[MAX_ADDR_LEN];
 255                         hal_get_permanent_address(pHwData, dev_addr);
 256                         SET_IEEE80211_PERM_ADDR(dev, dev_addr);
 257                 }
 258
 259
 260                 dev->extra_tx_headroom = 12;    /* FIXME */
 261                 dev->flags = 0;
 262
 263                 dev->channel_change_time = 1000;
 264 //              dev->max_rssi = 100;
 265
 266                 dev->queues = 1;
 267
 268                 band.channels = wbsoft_channels;
 269                 band.n_channels = ARRAY_SIZE(wbsoft_channels);
 270                 band.bitrates = wbsoft_rates;
 271                 band.n_bitrates = ARRAY_SIZE(wbsoft_rates);
 272
 273                 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band;
 274 #if 0
 275                 wbsoft_modes[0].num_channels = 1;
 276                 wbsoft_modes[0].channels = wbsoft_channels;
 277                 wbsoft_modes[0].mode = MODE_IEEE80211B;
 278                 wbsoft_modes[0].num_rates = ARRAY_SIZE(wbsoft_rates);
 279                 wbsoft_modes[0].rates = wbsoft_rates;
 280
 281                 res = ieee80211_register_hwmode(dev, &wbsoft_modes[0]);
 282                 BUG_ON(res);
 283 #endif
 284
 285                 res = ieee80211_register_hw(dev);
 286                 BUG_ON(res);
 287         }
 288
 289         usb_set_intfdata( intf, Adapter );
 290
 291         printk("[w35und] _probe OK\n");
 292         return 0;
 293 error:
 294         return -ENOMEM;
 295 }
 296
 297 void packet_came(char *pRxBufferAddress, int PacketSize)
 298 {
 299         struct sk_buff *skb;
 300         struct ieee80211_rx_status rx_status = {0};
 301
 302         if (!wbsoft_enabled)
 303                 return;
 304
 305         skb = dev_alloc_skb(PacketSize);
 306         if (!skb) {
 307                 printk("Not enough memory for packet, FIXME\n");
 308                 return;
 309         }
 310
 311         memcpy(skb_put(skb, PacketSize),
 312                pRxBufferAddress,
 313                PacketSize);
 314
 315 /*
 316         rx_status.rate = 10;
 317         rx_status.channel = 1;
 318         rx_status.freq = 12345;
 319         rx_status.phymode = MODE_IEEE80211B;
 320 */
 321
 322         ieee80211_rx_irqsafe(my_dev, skb, &rx_status);
 323 }
 324
 325 unsigned char
 326 WbUsb_initial(phw_data_t pHwData)
 327 {
 328         return 1;
 329 }
 330
 331
 332 void
 333 WbUsb_destroy(phw_data_t pHwData)
 334 {
 335 }
 336
 337 int wb35_open(struct net_device *netdev)
 338 {
 339         PADAPTER Adapter = (PADAPTER)netdev->priv;
 340         phw_data_t pHwData = &Adapter->sHwData;
 341
 342         netif_start_queue(netdev);
 343
 344         //TODO : put here temporarily
 345         hal_set_accept_broadcast(pHwData, 1); // open accept broadcast
 346
 347         return 0;
 348 }
 349
 350 int wb35_close(struct net_device *netdev)
 351 {
 352         netif_stop_queue(netdev);
 353         return 0;
 354 }
 355
 356 void wb35_disconnect(struct usb_interface *intf)
 357 {
 358         PWBLINUX pWbLinux;
 359         PADAPTER Adapter = usb_get_intfdata(intf);
 360         usb_set_intfdata(intf, NULL);
 361
 362         pWbLinux = &Adapter->WbLinux;
 363
 364         // Card remove
 365         WbWlanHalt(Adapter);
 366
 367 }
 368
 369 static struct usb_driver wb35_driver = {
 370         .name           = "w35und",
 371         .id_table       = wb35_table,
 372         .probe          = wb35_probe,
 373         .disconnect     = wb35_disconnect,
 374 };
 375
 376 static int __init wb35_init(void)
 377 {
 378         return usb_register(&wb35_driver);
 379 }
 380
 381 static void __exit wb35_exit(void)
 382 {
 383         usb_deregister(&wb35_driver);
 384 }
 385
 386 module_init(wb35_init);
 387 module_exit(wb35_exit);