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 "mlmetxrx_f.h"
  11 #include "wbhal_f.h"
  12 #include "wblinux_f.h"
  13
  14 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>");
  15 MODULE_DESCRIPTION("IS89C35 802.11bg WLAN USB Driver");
  16 MODULE_LICENSE("GPL");
  17 MODULE_VERSION("0.1");
  18
  19 static struct usb_device_id wb35_table[] __devinitdata = {
  20         {USB_DEVICE(0x0416, 0x0035)},
  21         {USB_DEVICE(0x18E8, 0x6201)},
  22         {USB_DEVICE(0x18E8, 0x6206)},
  23         {USB_DEVICE(0x18E8, 0x6217)},
  24         {USB_DEVICE(0x18E8, 0x6230)},
  25         {USB_DEVICE(0x18E8, 0x6233)},
  26         {USB_DEVICE(0x1131, 0x2035)},
  27         { 0, }
  28 };
  29
  30 MODULE_DEVICE_TABLE(usb, wb35_table);
  31
  32 static struct ieee80211_rate wbsoft_rates[] = {
  33         { .bitrate = 10, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
  34 };
  35
  36 static struct ieee80211_channel wbsoft_channels[] = {
  37         { .center_freq = 2412},
  38 };
  39
  40 static struct ieee80211_supported_band wbsoft_band_2GHz = {
  41         .channels       = wbsoft_channels,
  42         .n_channels     = ARRAY_SIZE(wbsoft_channels),
  43         .bitrates       = wbsoft_rates,
  44         .n_bitrates     = ARRAY_SIZE(wbsoft_rates),
  45 };
  46
  47 int wbsoft_enabled;
  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         wbsoft_enabled = 1;
 131         printk("wbsoft_start called\n");
 132         return 0;
 133 }
 134
 135 static int wbsoft_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
 136 {
 137         struct wbsoft_priv *priv = dev->priv;
 138
 139         ChanInfo ch;
 140         printk("wbsoft_config called\n");
 141
 142         ch.band = 1;
 143         ch.ChanNo = 1;  /* Should use channel_num, or something, as that is already pre-translated */
 144
 145
 146         hal_set_current_channel(&priv->sHwData, ch);
 147         hal_set_beacon_period(&priv->sHwData, conf->beacon_int);
 148 //      hal_set_cap_info(&priv->sHwData, ?? );
 149 // hal_set_ssid(phw_data_t pHwData,  u8 * pssid,  u8 ssid_len); ??
 150         hal_set_accept_broadcast(&priv->sHwData, 1);
 151         hal_set_accept_promiscuous(&priv->sHwData,  1);
 152         hal_set_accept_multicast(&priv->sHwData,  1);
 153         hal_set_accept_beacon(&priv->sHwData,  1);
 154         hal_set_radio_mode(&priv->sHwData,  0);
 155         //hal_set_antenna_number(  phw_data_t pHwData, u8 number )
 156         //hal_set_rf_power(phw_data_t pHwData, u8 PowerIndex)
 157
 158
 159 //      hal_start_bss(&priv->sHwData, WLAN_BSSTYPE_INFRASTRUCTURE);     ??
 160
 161 //void hal_set_rates(phw_data_t pHwData, u8 * pbss_rates,
 162 //                 u8 length, unsigned char basic_rate_set)
 163
 164         return 0;
 165 }
 166
 167 static int wbsoft_config_interface(struct ieee80211_hw *dev,
 168                                     struct ieee80211_vif *vif,
 169                                     struct ieee80211_if_conf *conf)
 170 {
 171         printk("wbsoft_config_interface called\n");
 172         return 0;
 173 }
 174
 175 static u64 wbsoft_get_tsf(struct ieee80211_hw *dev)
 176 {
 177         printk("wbsoft_get_tsf called\n");
 178         return 0;
 179 }
 180
 181 static const struct ieee80211_ops wbsoft_ops = {
 182         .tx                     = wbsoft_tx,
 183         .start                  = wbsoft_start,         /* Start can be pretty much empty as we do WbWLanInitialize() during probe? */
 184         .stop                   = wbsoft_stop,
 185         .add_interface          = wbsoft_add_interface,
 186         .remove_interface       = wbsoft_remove_interface,
 187         .config                 = wbsoft_config,
 188         .config_interface       = wbsoft_config_interface,
 189         .configure_filter       = wbsoft_configure_filter,
 190         .get_stats              = wbsoft_get_stats,
 191         .get_tx_stats           = wbsoft_get_tx_stats,
 192         .get_tsf                = wbsoft_get_tsf,
 193 // conf_tx: hal_set_cwmin()/hal_set_cwmax;
 194 };
 195
 196 static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id_table)
 197 {
 198         PWBUSB          pWbUsb;
 199         struct usb_host_interface *interface;
 200         struct usb_endpoint_descriptor *endpoint;
 201         u32     ltmp;
 202         struct usb_device *udev = interface_to_usbdev(intf);
 203         struct wbsoft_priv *priv;
 204         struct ieee80211_hw *dev;
 205         int err;
 206
 207         usb_get_dev(udev);
 208
 209         // 20060630.2 Check the device if it already be opened
 210         err = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
 211                               0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
 212                               0x0, 0x400, &ltmp, 4, HZ*100 );
 213         if (err)
 214                 goto error;
 215
 216         ltmp = cpu_to_le32(ltmp);
 217         if (ltmp) {  // Is already initialized?
 218                 err = -EBUSY;
 219                 goto error;
 220         }
 221
 222         dev = ieee80211_alloc_hw(sizeof(*priv), &wbsoft_ops);
 223         if (!dev)
 224                 goto error;
 225
 226         priv = dev->priv;
 227
 228         pWbUsb = &priv->sHwData.WbUsb;
 229         pWbUsb->udev = udev;
 230
 231         interface = intf->cur_altsetting;
 232         endpoint = &interface->endpoint[0].desc;
 233
 234         if (endpoint[2].wMaxPacketSize == 512) {
 235                 printk("[w35und] Working on USB 2.0\n");
 236                 pWbUsb->IsUsb20 = 1;
 237         }
 238
 239         if (!WbWLanInitialize(dev)) {
 240                 err = -EINVAL;
 241                 goto error_free_hw;
 242         }
 243
 244         SET_IEEE80211_DEV(dev, &udev->dev);
 245         {
 246                 phw_data_t pHwData = &priv->sHwData;
 247                 unsigned char           dev_addr[MAX_ADDR_LEN];
 248                 hal_get_permanent_address(pHwData, dev_addr);
 249                 SET_IEEE80211_PERM_ADDR(dev, dev_addr);
 250         }
 251
 252         dev->extra_tx_headroom = 12;    /* FIXME */
 253         dev->flags = 0;
 254
 255         dev->channel_change_time = 1000;
 256         dev->queues = 1;
 257
 258         dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &wbsoft_band_2GHz;
 259
 260         err = ieee80211_register_hw(dev);
 261         if (err)
 262                 goto error_free_hw;
 263
 264         usb_set_intfdata(intf, priv);
 265
 266         return 0;
 267
 268 error_free_hw:
 269         ieee80211_free_hw(dev);
 270 error:
 271         usb_put_dev(udev);
 272         return err;
 273 }
 274
 275 void packet_came(struct ieee80211_hw *hw, char *pRxBufferAddress, int PacketSize)
 276 {
 277         struct sk_buff *skb;
 278         struct ieee80211_rx_status rx_status = {0};
 279
 280         if (!wbsoft_enabled)
 281                 return;
 282
 283         skb = dev_alloc_skb(PacketSize);
 284         if (!skb) {
 285                 printk("Not enough memory for packet, FIXME\n");
 286                 return;
 287         }
 288
 289         memcpy(skb_put(skb, PacketSize),
 290                pRxBufferAddress,
 291                PacketSize);
 292
 293 /*
 294         rx_status.rate = 10;
 295         rx_status.channel = 1;
 296         rx_status.freq = 12345;
 297         rx_status.phymode = MODE_IEEE80211B;
 298 */
 299
 300         ieee80211_rx_irqsafe(hw, skb, &rx_status);
 301 }
 302
 303 static void wb35_disconnect(struct usb_interface *intf)
 304 {
 305         struct wbsoft_priv *priv = usb_get_intfdata(intf);
 306
 307         WbWlanHalt(priv);
 308
 309         usb_set_intfdata(intf, NULL);
 310         usb_put_dev(interface_to_usbdev(intf));
 311 }
 312
 313 static struct usb_driver wb35_driver = {
 314         .name           = "w35und",
 315         .id_table       = wb35_table,
 316         .probe          = wb35_probe,
 317         .disconnect     = wb35_disconnect,
 318 };
 319
 320 static int __init wb35_init(void)
 321 {
 322         return usb_register(&wb35_driver);
 323 }
 324
 325 static void __exit wb35_exit(void)
 326 {
 327         usb_deregister(&wb35_driver);
 328 }
 329
 330 module_init(wb35_init);
 331 module_exit(wb35_exit);