Linux Kernel  3.7.1
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prism2usb.c
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1 #include "hfa384x_usb.c"
2 #include "prism2mgmt.c"
3 #include "prism2mib.c"
4 #include "prism2sta.c"
5 #include "prism2fw.c"
6 
7 #define PRISM_USB_DEVICE(vid, pid, name) \
8  USB_DEVICE(vid, pid), \
9  .driver_info = (unsigned long) name
10 
11 static struct usb_device_id usb_prism_tbl[] = {
12  {PRISM_USB_DEVICE(0x04bb, 0x0922, "IOData AirPort WN-B11/USBS")},
13  {PRISM_USB_DEVICE(0x07aa, 0x0012, "Corega Wireless LAN USB Stick-11")},
14  {PRISM_USB_DEVICE(0x09aa, 0x3642, "Prism2.x 11Mbps WLAN USB Adapter")},
15  {PRISM_USB_DEVICE
16  (0x1668, 0x0408, "Actiontec Prism2.5 11Mbps WLAN USB Adapter")},
17  {PRISM_USB_DEVICE
18  (0x1668, 0x0421, "Actiontec Prism2.5 11Mbps WLAN USB Adapter")},
19  {PRISM_USB_DEVICE
20  (0x1915, 0x2236, "Linksys WUSB11v3.0 11Mbps WLAN USB Adapter")},
21  {PRISM_USB_DEVICE
22  (0x066b, 0x2212, "Linksys WUSB11v2.5 11Mbps WLAN USB Adapter")},
23  {PRISM_USB_DEVICE
24  (0x066b, 0x2213, "Linksys WUSB12v1.1 11Mbps WLAN USB Adapter")},
25  {PRISM_USB_DEVICE
26  (0x067c, 0x1022, "Siemens SpeedStream 1022 11Mbps WLAN USB Adapter")},
27  {PRISM_USB_DEVICE
28  (0x049f, 0x0033,
29  "Compaq/Intel W100 PRO/Wireless 11Mbps multiport WLAN Adapter")},
30  {PRISM_USB_DEVICE
31  (0x0411, 0x0016, "Melco WLI-USB-S11 11Mbps WLAN Adapter")},
32  {PRISM_USB_DEVICE
33  (0x08de, 0x7a01, "PRISM25 IEEE 802.11 Mini USB Adapter")},
34  {PRISM_USB_DEVICE
35  (0x8086, 0x1111, "Intel PRO/Wireless 2011B LAN USB Adapter")},
36  {PRISM_USB_DEVICE
37  (0x0d8e, 0x7a01, "PRISM25 IEEE 802.11 Mini USB Adapter")},
38  {PRISM_USB_DEVICE
39  (0x045e, 0x006e, "Microsoft MN510 Wireless USB Adapter")},
40  {PRISM_USB_DEVICE(0x0967, 0x0204, "Acer Warplink USB Adapter")},
41  {PRISM_USB_DEVICE
42  (0x0cde, 0x0002, "Z-Com 725/726 Prism2.5 USB/USB Integrated")},
43  {PRISM_USB_DEVICE
44  (0x0cde, 0x0005, "Z-Com Xl735 Wireless 802.11b USB Adapter")},
45  {PRISM_USB_DEVICE
46  (0x413c, 0x8100, "Dell TrueMobile 1180 Wireless USB Adapter")},
47  {PRISM_USB_DEVICE
48  (0x0b3b, 0x1601, "ALLNET 0193 11Mbps WLAN USB Adapter")},
49  {PRISM_USB_DEVICE
50  (0x0b3b, 0x1602, "ZyXEL ZyAIR B200 Wireless USB Adapter")},
51  {PRISM_USB_DEVICE
52  (0x0baf, 0x00eb, "USRobotics USR1120 Wireless USB Adapter")},
53  {PRISM_USB_DEVICE
54  (0x0411, 0x0027, "Melco WLI-USB-KS11G 11Mbps WLAN Adapter")},
55  {PRISM_USB_DEVICE
56  (0x04f1, 0x3009, "JVC MP-XP7250 Builtin USB WLAN Adapter")},
57  {PRISM_USB_DEVICE(0x0846, 0x4110, "NetGear MA111")},
58  {PRISM_USB_DEVICE(0x03f3, 0x0020, "Adaptec AWN-8020 USB WLAN Adapter")},
59  {PRISM_USB_DEVICE(0x2821, 0x3300, "ASUS-WL140 Wireless USB Adapter")},
60  {PRISM_USB_DEVICE(0x2001, 0x3700, "DWL-122 Wireless USB Adapter")},
61  {PRISM_USB_DEVICE
62  (0x2001, 0x3702, "DWL-120 Rev F Wireless USB Adapter")},
63  {PRISM_USB_DEVICE(0x50c2, 0x4013, "Averatec USB WLAN Adapter")},
64  {PRISM_USB_DEVICE(0x2c02, 0x14ea, "Planex GW-US11H WLAN USB Adapter")},
65  {PRISM_USB_DEVICE(0x124a, 0x168b, "Airvast PRISM3 WLAN USB Adapter")},
66  {PRISM_USB_DEVICE(0x083a, 0x3503, "T-Sinus 111 USB WLAN Adapter")},
67  {PRISM_USB_DEVICE(0x2821, 0x3300, "Hawking HighDB USB Adapter")},
68  {PRISM_USB_DEVICE
69  (0x0411, 0x0044, "Melco WLI-USB-KB11 11Mbps WLAN Adapter")},
70  {PRISM_USB_DEVICE(0x1668, 0x6106, "ROPEX FreeLan 802.11b USB Adapter")},
71  {PRISM_USB_DEVICE
72  (0x124a, 0x4017, "Pheenet WL-503IA 802.11b USB Adapter")},
73  {PRISM_USB_DEVICE(0x0bb2, 0x0302, "Ambit Microsystems Corp.")},
74  {PRISM_USB_DEVICE
75  (0x9016, 0x182d, "Sitecom WL-022 802.11b USB Adapter")},
76  {PRISM_USB_DEVICE
77  (0x0543, 0x0f01, "ViewSonic Airsync USB Adapter 11Mbps (Prism2.5)")},
78  { /* terminator */ }
79 };
80 
81 MODULE_DEVICE_TABLE(usb, usb_prism_tbl);
82 
83 /*----------------------------------------------------------------
84 * prism2sta_probe_usb
85 *
86 * Probe routine called by the USB subsystem.
87 *
88 * Arguments:
89 * dev ptr to the usb_device struct
90 * ifnum interface number being offered
91 *
92 * Returns:
93 * NULL - we're not claiming the device+interface
94 * non-NULL - we are claiming the device+interface and
95 * this is a ptr to the data we want back
96 * when disconnect is called.
97 *
98 * Side effects:
99 *
100 * Call context:
101 * I'm not sure, assume it's interrupt.
102 *
103 ----------------------------------------------------------------*/
104 static int prism2sta_probe_usb(struct usb_interface *interface,
105  const struct usb_device_id *id)
106 {
107  struct usb_device *dev;
108 
109  wlandevice_t *wlandev = NULL;
110  hfa384x_t *hw = NULL;
111  int result = 0;
112 
113  dev = interface_to_usbdev(interface);
114  wlandev = create_wlan();
115  if (wlandev == NULL) {
116  printk(KERN_ERR "%s: Memory allocation failure.\n", dev_info);
117  result = -EIO;
118  goto failed;
119  }
120  hw = wlandev->priv;
121 
122  if (wlan_setup(wlandev, &(interface->dev)) != 0) {
123  printk(KERN_ERR "%s: wlan_setup() failed.\n", dev_info);
124  result = -EIO;
125  goto failed;
126  }
127 
128  /* Initialize the hw data */
129  hfa384x_create(hw, dev);
130  hw->wlandev = wlandev;
131 
132  /* Register the wlandev, this gets us a name and registers the
133  * linux netdevice.
134  */
135  SET_NETDEV_DEV(wlandev->netdev, &(interface->dev));
136 
137  /* Do a chip-level reset on the MAC */
138  if (prism2_doreset) {
139  result = hfa384x_corereset(hw,
140  prism2_reset_holdtime,
141  prism2_reset_settletime, 0);
142  if (result != 0) {
143  unregister_wlandev(wlandev);
144  hfa384x_destroy(hw);
145  result = -EIO;
146  printk(KERN_ERR
147  "%s: hfa384x_corereset() failed.\n", dev_info);
148  goto failed;
149  }
150  }
151 
152  usb_get_dev(dev);
153 
154  wlandev->msdstate = WLAN_MSD_HWPRESENT;
155 
156  /* Try and load firmware, then enable card before we register */
157  prism2_fwtry(dev, wlandev);
158  prism2sta_ifstate(wlandev, P80211ENUM_ifstate_enable);
159 
160  if (register_wlandev(wlandev) != 0) {
161  printk(KERN_ERR "%s: register_wlandev() failed.\n", dev_info);
162  result = -EIO;
163  goto failed;
164  }
165 
166  goto done;
167 
168 failed:
169  kfree(wlandev);
170  kfree(hw);
171  wlandev = NULL;
172 
173 done:
174  usb_set_intfdata(interface, wlandev);
175  return result;
176 }
177 
178 /*----------------------------------------------------------------
179 * prism2sta_disconnect_usb
180 *
181 * Called when a device previously claimed by probe is removed
182 * from the USB.
183 *
184 * Arguments:
185 * dev ptr to the usb_device struct
186 * ptr ptr returned by probe() when the device
187 * was claimed.
188 *
189 * Returns:
190 * Nothing
191 *
192 * Side effects:
193 *
194 * Call context:
195 * process
196 ----------------------------------------------------------------*/
197 static void prism2sta_disconnect_usb(struct usb_interface *interface)
198 {
199  wlandevice_t *wlandev;
200 
201  wlandev = (wlandevice_t *) usb_get_intfdata(interface);
202 
203  if (wlandev != NULL) {
204  LIST_HEAD(cleanlist);
205  struct list_head *entry;
206  struct list_head *temp;
207  unsigned long flags;
208 
209  hfa384x_t *hw = wlandev->priv;
210 
211  if (!hw)
212  goto exit;
213 
214  spin_lock_irqsave(&hw->ctlxq.lock, flags);
215 
216  p80211netdev_hwremoved(wlandev);
217  list_splice_init(&hw->ctlxq.reapable, &cleanlist);
218  list_splice_init(&hw->ctlxq.completing, &cleanlist);
219  list_splice_init(&hw->ctlxq.pending, &cleanlist);
220  list_splice_init(&hw->ctlxq.active, &cleanlist);
221 
222  spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
223 
224  /* There's no hardware to shutdown, but the driver
225  * might have some tasks or tasklets that must be
226  * stopped before we can tear everything down.
227  */
228  prism2sta_ifstate(wlandev, P80211ENUM_ifstate_disable);
229 
230  del_singleshot_timer_sync(&hw->throttle);
231  del_singleshot_timer_sync(&hw->reqtimer);
232  del_singleshot_timer_sync(&hw->resptimer);
233 
234  /* Unlink all the URBs. This "removes the wheels"
235  * from the entire CTLX handling mechanism.
236  */
237  usb_kill_urb(&hw->rx_urb);
238  usb_kill_urb(&hw->tx_urb);
239  usb_kill_urb(&hw->ctlx_urb);
240 
241  tasklet_kill(&hw->completion_bh);
242  tasklet_kill(&hw->reaper_bh);
243 
244  flush_scheduled_work();
245 
246  /* Now we complete any outstanding commands
247  * and tell everyone who is waiting for their
248  * responses that we have shut down.
249  */
250  list_for_each(entry, &cleanlist) {
251  hfa384x_usbctlx_t *ctlx;
252 
253  ctlx = list_entry(entry, hfa384x_usbctlx_t, list);
254  complete(&ctlx->done);
255  }
256 
257  /* Give any outstanding synchronous commands
258  * a chance to complete. All they need to do
259  * is "wake up", so that's easy.
260  * (I'd like a better way to do this, really.)
261  */
262  msleep(100);
263 
264  /* Now delete the CTLXs, because no-one else can now. */
265  list_for_each_safe(entry, temp, &cleanlist) {
266  hfa384x_usbctlx_t *ctlx;
267 
268  ctlx = list_entry(entry, hfa384x_usbctlx_t, list);
269  kfree(ctlx);
270  }
271 
272  /* Unhook the wlandev */
273  unregister_wlandev(wlandev);
274  wlan_unsetup(wlandev);
275 
276  usb_put_dev(hw->usb);
277 
278  hfa384x_destroy(hw);
279  kfree(hw);
280 
281  kfree(wlandev);
282  }
283 
284 exit:
285  usb_set_intfdata(interface, NULL);
286 }
287 
288 #ifdef CONFIG_PM
289 static int prism2sta_suspend(struct usb_interface *interface,
290  pm_message_t message)
291 {
292  hfa384x_t *hw = NULL;
293  wlandevice_t *wlandev;
294  wlandev = (wlandevice_t *) usb_get_intfdata(interface);
295  if (!wlandev)
296  return -ENODEV;
297 
298  hw = wlandev->priv;
299  if (!hw)
300  return -ENODEV;
301 
302  prism2sta_ifstate(wlandev, P80211ENUM_ifstate_disable);
303 
304  usb_kill_urb(&hw->rx_urb);
305  usb_kill_urb(&hw->tx_urb);
306  usb_kill_urb(&hw->ctlx_urb);
307 
308  return 0;
309 }
310 
311 static int prism2sta_resume(struct usb_interface *interface)
312 {
313  int result = 0;
314  hfa384x_t *hw = NULL;
315  wlandevice_t *wlandev;
316  wlandev = (wlandevice_t *) usb_get_intfdata(interface);
317  if (!wlandev)
318  return -ENODEV;
319 
320  hw = wlandev->priv;
321  if (!hw)
322  return -ENODEV;
323 
324  /* Do a chip-level reset on the MAC */
325  if (prism2_doreset) {
326  result = hfa384x_corereset(hw,
327  prism2_reset_holdtime,
328  prism2_reset_settletime, 0);
329  if (result != 0) {
330  unregister_wlandev(wlandev);
331  hfa384x_destroy(hw);
332  printk(KERN_ERR
333  "%s: hfa384x_corereset() failed.\n", dev_info);
334  kfree(wlandev);
335  kfree(hw);
336  wlandev = NULL;
337  return -ENODEV;
338  }
339  }
340 
341  prism2sta_ifstate(wlandev, P80211ENUM_ifstate_enable);
342 
343  return 0;
344 }
345 #else
346 #define prism2sta_suspend NULL
347 #define prism2sta_resume NULL
348 #endif /* CONFIG_PM */
349 
350 static struct usb_driver prism2_usb_driver = {
351  .name = "prism2_usb",
352  .probe = prism2sta_probe_usb,
353  .disconnect = prism2sta_disconnect_usb,
354  .id_table = usb_prism_tbl,
355  .suspend = prism2sta_suspend,
356  .resume = prism2sta_resume,
357  .reset_resume = prism2sta_resume,
358  /* fops, minor? */
359 };
360 
361 module_usb_driver(prism2_usb_driver);
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