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 struct wb35_adapter * 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         MLMESendFrame(my_adapter, skb->data, skb->len, FRAME_TYPE_802_11_MANAGEMENT);
 111
 112         return NETDEV_TX_OK;
 113 }
 114
 115
 116 static int wbsoft_start(struct ieee80211_hw *dev)
 117 {
 118         wbsoft_enabled = 1;
 119         printk("wbsoft_start called\n");
 120         return 0;
 121 }
 122
 123 static int wbsoft_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
 124 {
 125         ChanInfo ch;
 126         printk("wbsoft_config called\n");
 127
 128         ch.band = 1;
 129         ch.ChanNo = 1;  /* Should use channel_num, or something, as that is already pre-translated */
 130
 131
 132         hal_set_current_channel(&my_adapter->sHwData, ch);
 133         hal_set_beacon_period(&my_adapter->sHwData, conf->beacon_int);
 134 //      hal_set_cap_info(&my_adapter->sHwData, ?? );
 135 // hal_set_ssid(phw_data_t pHwData,  u8 * pssid,  u8 ssid_len); ??
 136         hal_set_accept_broadcast(&my_adapter->sHwData, 1);
 137         hal_set_accept_promiscuous(&my_adapter->sHwData,  1);
 138         hal_set_accept_multicast(&my_adapter->sHwData,  1);
 139         hal_set_accept_beacon(&my_adapter->sHwData,  1);
 140         hal_set_radio_mode(&my_adapter->sHwData,  0);
 141         //hal_set_antenna_number(  phw_data_t pHwData, u8 number )
 142         //hal_set_rf_power(phw_data_t pHwData, u8 PowerIndex)
 143
 144
 145 //      hal_start_bss(&my_adapter->sHwData, WLAN_BSSTYPE_INFRASTRUCTURE);       ??
 146
 147 //void hal_set_rates(phw_data_t pHwData, u8 * pbss_rates,
 148 //                 u8 length, unsigned char basic_rate_set)
 149
 150         return 0;
 151 }
 152
 153 static int wbsoft_config_interface(struct ieee80211_hw *dev,
 154                                     struct ieee80211_vif *vif,
 155                                     struct ieee80211_if_conf *conf)
 156 {
 157         printk("wbsoft_config_interface called\n");
 158         return 0;
 159 }
 160
 161 static u64 wbsoft_get_tsf(struct ieee80211_hw *dev)
 162 {
 163         printk("wbsoft_get_tsf called\n");
 164         return 0;
 165 }
 166
 167 static const struct ieee80211_ops wbsoft_ops = {
 168         .tx                     = wbsoft_tx,
 169         .start                  = wbsoft_start,         /* Start can be pretty much empty as we do WbWLanInitialize() during probe? */
 170         .stop                   = wbsoft_stop,
 171         .add_interface          = wbsoft_add_interface,
 172         .remove_interface       = wbsoft_remove_interface,
 173         .config                 = wbsoft_config,
 174         .config_interface       = wbsoft_config_interface,
 175         .configure_filter       = wbsoft_configure_filter,
 176         .get_stats              = wbsoft_get_stats,
 177         .get_tx_stats           = wbsoft_get_tx_stats,
 178         .get_tsf                = wbsoft_get_tsf,
 179 // conf_tx: hal_set_cwmin()/hal_set_cwmax;
 180 };
 181
 182 struct wbsoft_priv {
 183 };
 184
 185 static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id_table)
 186 {
 187         struct wb35_adapter *adapter;
 188         PWBUSB          pWbUsb;
 189         struct usb_host_interface *interface;
 190         struct usb_endpoint_descriptor *endpoint;
 191         u32     ltmp;
 192         struct usb_device *udev = interface_to_usbdev(intf);
 193         struct wbsoft_priv *priv;
 194         struct ieee80211_hw *dev;
 195         static struct ieee80211_supported_band band;
 196         int err;
 197
 198         usb_get_dev(udev);
 199
 200         // 20060630.2 Check the device if it already be opened
 201         err = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
 202                               0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
 203                               0x0, 0x400, &ltmp, 4, HZ*100 );
 204         if (err)
 205                 goto error;
 206
 207         ltmp = cpu_to_le32(ltmp);
 208         if (ltmp) {  // Is already initialized?
 209                 err = -EBUSY;
 210                 goto error;
 211         }
 212
 213         adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
 214         if (!adapter) {
 215                 err = -ENOMEM;
 216                 goto error;
 217         }
 218
 219         my_adapter = adapter;
 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                 err = -EINVAL;
 233                 goto error_free_adapter;
 234         }
 235
 236         dev = ieee80211_alloc_hw(sizeof(*priv), &wbsoft_ops);
 237         if (!dev)
 238                 goto error_free_adapter;
 239
 240         my_dev = dev;
 241
 242         SET_IEEE80211_DEV(dev, &udev->dev);
 243         {
 244                 phw_data_t pHwData = &adapter->sHwData;
 245                 unsigned char dev_addr[MAX_ADDR_LEN];
 246                 hal_get_permanent_address(pHwData, dev_addr);
 247                 SET_IEEE80211_PERM_ADDR(dev, dev_addr);
 248         }
 249
 250         dev->extra_tx_headroom = 12;    /* FIXME */
 251         dev->flags = 0;
 252
 253         dev->channel_change_time = 1000;
 254         dev->queues = 1;
 255
 256         band.channels = wbsoft_channels;
 257         band.n_channels = ARRAY_SIZE(wbsoft_channels);
 258         band.bitrates = wbsoft_rates;
 259         band.n_bitrates = ARRAY_SIZE(wbsoft_rates);
 260
 261         dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band;
 262         err = ieee80211_register_hw(dev);
 263         if (err)
 264                 goto error_free_hw;
 265
 266         usb_set_intfdata(intf, adapter);
 267
 268         return 0;
 269
 270 error_free_hw:
 271         ieee80211_free_hw(dev);
 272 error_free_adapter:
 273         kfree(adapter);
 274 error:
 275         usb_put_dev(udev);
 276         return err;
 277 }
 278
 279 void packet_came(char *pRxBufferAddress, int PacketSize)
 280 {
 281         struct sk_buff *skb;
 282         struct ieee80211_rx_status rx_status = {0};
 283
 284         if (!wbsoft_enabled)
 285                 return;
 286
 287         skb = dev_alloc_skb(PacketSize);
 288         if (!skb) {
 289                 printk("Not enough memory for packet, FIXME\n");
 290                 return;
 291         }
 292
 293         memcpy(skb_put(skb, PacketSize),
 294                pRxBufferAddress,
 295                PacketSize);
 296
 297 /*
 298         rx_status.rate = 10;
 299         rx_status.channel = 1;
 300         rx_status.freq = 12345;
 301         rx_status.phymode = MODE_IEEE80211B;
 302 */
 303
 304         ieee80211_rx_irqsafe(my_dev, skb, &rx_status);
 305 }
 306
 307 static void wb35_disconnect(struct usb_interface *intf)
 308 {
 309         struct wb35_adapter *adapter = usb_get_intfdata(intf);
 310
 311         WbWlanHalt(adapter);
 312
 313         usb_set_intfdata(intf, NULL);
 314         usb_put_dev(interface_to_usbdev(intf));
 315 }
 316
 317 static struct usb_driver wb35_driver = {
 318         .name           = "w35und",
 319         .id_table       = wb35_table,
 320         .probe          = wb35_probe,
 321         .disconnect     = wb35_disconnect,
 322 };
 323
 324 static int __init wb35_init(void)
 325 {
 326         return usb_register(&wb35_driver);
 327 }
 328
 329 static void __exit wb35_exit(void)
 330 {
 331         usb_deregister(&wb35_driver);
 332 }
 333
 334 module_init(wb35_init);
 335 module_exit(wb35_exit);