summaryrefslogtreecommitdiffstats
path: root/drivers/staging/wlan-ng/prism2usb.c
blob: d8a12982135d75ea55dc72cb303af91fa32c4dbc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
#include "hfa384x_usb.c"
#include "prism2mgmt.c"
#include "prism2mib.c"
#include "prism2sta.c"

#define PRISM_USB_DEVICE(vid, pid, name) \
           USB_DEVICE(vid, pid),  \
           .driver_info = (unsigned long) name

static struct usb_device_id usb_prism_tbl[] = {
	{PRISM_USB_DEVICE(0x04bb, 0x0922, "IOData AirPort WN-B11/USBS")},
	{PRISM_USB_DEVICE(0x07aa, 0x0012, "Corega Wireless LAN USB Stick-11")},
	{PRISM_USB_DEVICE(0x09aa, 0x3642, "Prism2.x 11Mbps WLAN USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x1668, 0x0408, "Actiontec Prism2.5 11Mbps WLAN USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x1668, 0x0421, "Actiontec Prism2.5 11Mbps WLAN USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x1915, 0x2236, "Linksys WUSB11v3.0 11Mbps WLAN USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x066b, 0x2212, "Linksys WUSB11v2.5 11Mbps WLAN USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x066b, 0x2213, "Linksys WUSB12v1.1 11Mbps WLAN USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x067c, 0x1022, "Siemens SpeedStream 1022 11Mbps WLAN USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x049f, 0x0033,
	  "Compaq/Intel W100 PRO/Wireless 11Mbps multiport WLAN Adapter")},
	{PRISM_USB_DEVICE
	 (0x0411, 0x0016, "Melco WLI-USB-S11 11Mbps WLAN Adapter")},
	{PRISM_USB_DEVICE
	 (0x08de, 0x7a01, "PRISM25 IEEE 802.11 Mini USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x8086, 0x1111, "Intel PRO/Wireless 2011B LAN USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x0d8e, 0x7a01, "PRISM25 IEEE 802.11 Mini USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x045e, 0x006e, "Microsoft MN510 Wireless USB Adapter")},
	{PRISM_USB_DEVICE(0x0967, 0x0204, "Acer Warplink USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x0cde, 0x0002, "Z-Com 725/726 Prism2.5 USB/USB Integrated")},
	{PRISM_USB_DEVICE
	 (0x0cde, 0x0005, "Z-Com Xl735 Wireless 802.11b USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x413c, 0x8100, "Dell TrueMobile 1180 Wireless USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x0b3b, 0x1601, "ALLNET 0193 11Mbps WLAN USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x0b3b, 0x1602, "ZyXEL ZyAIR B200 Wireless USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x0baf, 0x00eb, "USRobotics USR1120 Wireless USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x0411, 0x0027, "Melco WLI-USB-KS11G 11Mbps WLAN Adapter")},
	{PRISM_USB_DEVICE
	 (0x04f1, 0x3009, "JVC MP-XP7250 Builtin USB WLAN Adapter")},
	{PRISM_USB_DEVICE(0x0846, 0x4110, "NetGear MA111")},
	{PRISM_USB_DEVICE(0x03f3, 0x0020, "Adaptec AWN-8020 USB WLAN Adapter")},
/*      {PRISM_USB_DEVICE(0x0ace, 0x1201, "ZyDAS ZD1201 Wireless USB Adapter")}, */
	{PRISM_USB_DEVICE(0x2821, 0x3300, "ASUS-WL140 Wireless USB Adapter")},
	{PRISM_USB_DEVICE(0x2001, 0x3700, "DWL-122 Wireless USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x2001, 0x3702, "DWL-120 Rev F Wireless USB Adapter")},
	{PRISM_USB_DEVICE(0x50c2, 0x4013, "Averatec USB WLAN Adapter")},
	{PRISM_USB_DEVICE(0x2c02, 0x14ea, "Planex GW-US11H WLAN USB Adapter")},
	{PRISM_USB_DEVICE(0x124a, 0x168b, "Airvast PRISM3 WLAN USB Adapter")},
	{PRISM_USB_DEVICE(0x083a, 0x3503, "T-Sinus 111 USB WLAN Adapter")},
	{PRISM_USB_DEVICE(0x2821, 0x3300, "Hawking HighDB USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x0411, 0x0044, "Melco WLI-USB-KB11 11Mbps WLAN Adapter")},
	{PRISM_USB_DEVICE(0x1668, 0x6106, "ROPEX FreeLan 802.11b USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x124a, 0x4017, "Pheenet WL-503IA 802.11b USB Adapter")},
	{PRISM_USB_DEVICE(0x0bb2, 0x0302, "Ambit Microsystems Corp.")},
	{PRISM_USB_DEVICE
	 (0x9016, 0x182d, "Sitecom WL-022 802.11b USB Adapter")},
	{PRISM_USB_DEVICE
	 (0x0543, 0x0f01, "ViewSonic Airsync USB Adapter 11Mbps (Prism2.5)")},
	{ /* terminator */ }
};

MODULE_DEVICE_TABLE(usb, usb_prism_tbl);

/*----------------------------------------------------------------
* prism2sta_probe_usb
*
* Probe routine called by the USB subsystem.
*
* Arguments:
*	dev		ptr to the usb_device struct
*	ifnum		interface number being offered
*
* Returns:
*	NULL		- we're not claiming the device+interface
*	non-NULL	- we are claiming the device+interface and
*			  this is a ptr to the data we want back
*			  when disconnect is called.
*
* Side effects:
*
* Call context:
*	I'm not sure, assume it's interrupt.
*
----------------------------------------------------------------*/
static int prism2sta_probe_usb(struct usb_interface *interface,
			       const struct usb_device_id *id)
{
	struct usb_device *dev;

	wlandevice_t *wlandev = NULL;
	hfa384x_t *hw = NULL;
	int result = 0;

	dev = interface_to_usbdev(interface);

	if ((wlandev = create_wlan()) == NULL) {
		printk(KERN_ERR "%s: Memory allocation failure.\n", dev_info);
		result = -EIO;
		goto failed;
	}
	hw = wlandev->priv;

	if (wlan_setup(wlandev) != 0) {
		printk(KERN_ERR "%s: wlan_setup() failed.\n", dev_info);
		result = -EIO;
		goto failed;
	}

	/* Initialize the hw data */
	hfa384x_create(hw, dev);
	hw->wlandev = wlandev;

	/* Register the wlandev, this gets us a name and registers the
	 * linux netdevice.
	 */
	SET_NETDEV_DEV(wlandev->netdev, &(interface->dev));

	/* Do a chip-level reset on the MAC */
	if (prism2_doreset) {
		result = hfa384x_corereset(hw,
					   prism2_reset_holdtime,
					   prism2_reset_settletime, 0);
		if (result != 0) {
			unregister_wlandev(wlandev);
			hfa384x_destroy(hw);
			result = -EIO;
			printk(KERN_ERR
			       "%s: hfa384x_corereset() failed.\n", dev_info);
			goto failed;
		}
	}

	usb_get_dev(dev);

	wlandev->msdstate = WLAN_MSD_HWPRESENT;

	if (register_wlandev(wlandev) != 0) {
		printk(KERN_ERR "%s: register_wlandev() failed.\n", dev_info);
		result = -EIO;
		goto failed;
	}

/* enable the card */
	prism2sta_ifstate(wlandev, P80211ENUM_ifstate_enable);

	goto done;

failed:
	kfree(wlandev);
	kfree(hw);
	wlandev = NULL;

done:
	p80211_allow_ioctls(wlandev);
	usb_set_intfdata(interface, wlandev);
	return result;
}

/*----------------------------------------------------------------
* prism2sta_disconnect_usb
*
* Called when a device previously claimed by probe is removed
* from the USB.
*
* Arguments:
*	dev		ptr to the usb_device struct
*	ptr		ptr returned by probe() when the device
*                       was claimed.
*
* Returns:
*	Nothing
*
* Side effects:
*
* Call context:
*	process
----------------------------------------------------------------*/
static void prism2sta_disconnect_usb(struct usb_interface *interface)
{
	wlandevice_t *wlandev;

	wlandev = (wlandevice_t *) usb_get_intfdata(interface);

	if (wlandev != NULL) {
		LIST_HEAD(cleanlist);
		struct list_head *entry;
		struct list_head *temp;
		unsigned long flags;

		hfa384x_t *hw = wlandev->priv;

		if (!hw)
			goto exit;

		spin_lock_irqsave(&hw->ctlxq.lock, flags);

		p80211netdev_hwremoved(wlandev);
		list_splice_init(&hw->ctlxq.reapable, &cleanlist);
		list_splice_init(&hw->ctlxq.completing, &cleanlist);
		list_splice_init(&hw->ctlxq.pending, &cleanlist);
		list_splice_init(&hw->ctlxq.active, &cleanlist);

		spin_unlock_irqrestore(&hw->ctlxq.lock, flags);

		/* There's no hardware to shutdown, but the driver
		 * might have some tasks or tasklets that must be
		 * stopped before we can tear everything down.
		 */
		prism2sta_ifstate(wlandev, P80211ENUM_ifstate_disable);

		del_singleshot_timer_sync(&hw->throttle);
		del_singleshot_timer_sync(&hw->reqtimer);
		del_singleshot_timer_sync(&hw->resptimer);

		/* Unlink all the URBs. This "removes the wheels"
		 * from the entire CTLX handling mechanism.
		 */
		usb_kill_urb(&hw->rx_urb);
		usb_kill_urb(&hw->tx_urb);
		usb_kill_urb(&hw->ctlx_urb);

		tasklet_kill(&hw->completion_bh);
		tasklet_kill(&hw->reaper_bh);

		flush_scheduled_work();

		/* Now we complete any outstanding commands
		 * and tell everyone who is waiting for their
		 * responses that we have shut down.
		 */
		list_for_each(entry, &cleanlist) {
			hfa384x_usbctlx_t *ctlx;

			ctlx = list_entry(entry, hfa384x_usbctlx_t, list);
			complete(&ctlx->done);
		}

		/* Give any outstanding synchronous commands
		 * a chance to complete. All they need to do
		 * is "wake up", so that's easy.
		 * (I'd like a better way to do this, really.)
		 */
		msleep(100);

		/* Now delete the CTLXs, because no-one else can now. */
		list_for_each_safe(entry, temp, &cleanlist) {
			hfa384x_usbctlx_t *ctlx;

			ctlx = list_entry(entry, hfa384x_usbctlx_t, list);
			kfree(ctlx);
		}

		/* Unhook the wlandev */
		unregister_wlandev(wlandev);
		wlan_unsetup(wlandev);

		usb_put_dev(hw->usb);

		hfa384x_destroy(hw);
		kfree(hw);

		kfree(wlandev);
	}

exit:
	usb_set_intfdata(interface, NULL);
}

static struct usb_driver prism2_usb_driver = {
	.name = "prism2_usb",
	.probe = prism2sta_probe_usb,
	.disconnect = prism2sta_disconnect_usb,
	.id_table = usb_prism_tbl,
	/* fops, minor? */
};

static int __init prism2usb_init(void)
{
	/* This call will result in calls to prism2sta_probe_usb. */
	return usb_register(&prism2_usb_driver);
};

static void __exit prism2usb_cleanup(void)
{
	usb_deregister(&prism2_usb_driver);
};

module_init(prism2usb_init);
module_exit(prism2usb_cleanup);