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         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 static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id_table)
 189 {
 190         struct wb35_adapter *adapter;
 191         PWBUSB          pWbUsb;
 192         struct usb_host_interface *interface;
 193         struct usb_endpoint_descriptor *endpoint;
 194         u32     ltmp;
 195         struct usb_device *udev = interface_to_usbdev(intf);
 196         struct wbsoft_priv *priv;
 197         struct ieee80211_hw *dev;
 198         static struct ieee80211_supported_band band;
 199         int err;
 200
 201         usb_get_dev(udev);
 202
 203         // 20060630.2 Check the device if it already be opened
 204         err = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
 205                               0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
 206                               0x0, 0x400, &ltmp, 4, HZ*100 );
 207         if (err)
 208                 goto error;
 209
 210         ltmp = cpu_to_le32(ltmp);
 211         if (ltmp) {  // Is already initialized?
 212                 err = -EBUSY;
 213                 goto error;
 214         }
 215
 216         adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
 217         if (!adapter) {
 218                 err = -ENOMEM;
 219                 goto error;
 220         }
 221
 222         my_adapter = adapter;
 223         pWbUsb = &adapter->sHwData.WbUsb;
 224         pWbUsb->udev = udev;
 225
 226         interface = intf->cur_altsetting;
 227         endpoint = &interface->endpoint[0].desc;
 228
 229         if (endpoint[2].wMaxPacketSize == 512) {
 230                 printk("[w35und] Working on USB 2.0\n");
 231                 pWbUsb->IsUsb20 = 1;
 232         }
 233
 234         if (!WbWLanInitialize(adapter)) {
 235                 err = -EINVAL;
 236                 goto error_free_adapter;
 237         }
 238
 239         dev = ieee80211_alloc_hw(sizeof(*priv), &wbsoft_ops);
 240         if (!dev)
 241                 goto error_free_adapter;
 242
 243         my_dev = dev;
 244
 245         SET_IEEE80211_DEV(dev, &udev->dev);
 246         {
 247                 phw_data_t pHwData = &adapter->sHwData;
 248                 unsigned char dev_addr[MAX_ADDR_LEN];
 249                 hal_get_permanent_address(pHwData, dev_addr);
 250                 SET_IEEE80211_PERM_ADDR(dev, dev_addr);
 251         }
 252
 253         dev->extra_tx_headroom = 12;    /* FIXME */
 254         dev->flags = 0;
 255
 256         dev->channel_change_time = 1000;
 257         dev->queues = 1;
 258
 259         band.channels = wbsoft_channels;
 260         band.n_channels = ARRAY_SIZE(wbsoft_channels);
 261         band.bitrates = wbsoft_rates;
 262         band.n_bitrates = ARRAY_SIZE(wbsoft_rates);
 263
 264         dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band;
 265         err = ieee80211_register_hw(dev);
 266         if (err)
 267                 goto error_free_hw;
 268
 269         usb_set_intfdata(intf, adapter);
 270
 271         return 0;
 272
 273 error_free_hw:
 274         ieee80211_free_hw(dev);
 275 error_free_adapter:
 276         kfree(adapter);
 277 error:
 278         usb_put_dev(udev);
 279         return err;
 280 }
 281
 282 void packet_came(char *pRxBufferAddress, int PacketSize)
 283 {
 284         struct sk_buff *skb;
 285         struct ieee80211_rx_status rx_status = {0};
 286
 287         if (!wbsoft_enabled)
 288                 return;
 289
 290         skb = dev_alloc_skb(PacketSize);
 291         if (!skb) {
 292                 printk("Not enough memory for packet, FIXME\n");
 293                 return;
 294         }
 295
 296         memcpy(skb_put(skb, PacketSize),
 297                pRxBufferAddress,
 298                PacketSize);
 299
 300 /*
 301         rx_status.rate = 10;
 302         rx_status.channel = 1;
 303         rx_status.freq = 12345;
 304         rx_status.phymode = MODE_IEEE80211B;
 305 */
 306
 307         ieee80211_rx_irqsafe(my_dev, skb, &rx_status);
 308 }
 309
 310 static void wb35_disconnect(struct usb_interface *intf)
 311 {
 312         struct wb35_adapter *adapter = usb_get_intfdata(intf);
 313
 314         WbWlanHalt(adapter);
 315
 316         usb_set_intfdata(intf, NULL);
 317         usb_put_dev(interface_to_usbdev(intf));
 318 }
 319
 320 static struct usb_driver wb35_driver = {
 321         .name           = "w35und",
 322         .id_table       = wb35_table,
 323         .probe          = wb35_probe,
 324         .disconnect     = wb35_disconnect,
 325 };
 326
 327 static int __init wb35_init(void)
 328 {
 329         return usb_register(&wb35_driver);
 330 }
 331
 332 static void __exit wb35_exit(void)
 333 {
 334         usb_deregister(&wb35_driver);
 335 }
 336
 337 module_init(wb35_init);
 338 module_exit(wb35_exit);