1 // SPDX-License-Identifier: GPL-2.0
2 #include "hfa384x_usb.c"
3 #include "prism2mgmt.c"
4 #include "prism2mib.c"
5 #include "prism2sta.c"
6 #include "prism2fw.c"
7 
8 #define PRISM_DEV(vid, pid, name)		\
9 	{ USB_DEVICE(vid, pid),			\
10 	.driver_info = (unsigned long)name }
11 
12 static const struct usb_device_id usb_prism_tbl[] = {
13 	PRISM_DEV(0x04bb, 0x0922, "IOData AirPort WN-B11/USBS"),
14 	PRISM_DEV(0x07aa, 0x0012, "Corega USB Wireless LAN Stick-11"),
15 	PRISM_DEV(0x09aa, 0x3642, "Prism2.x 11Mbps USB WLAN Adapter"),
16 	PRISM_DEV(0x1668, 0x0408, "Actiontec Prism2.5 11Mbps USB WLAN Adapter"),
17 	PRISM_DEV(0x1668, 0x0421, "Actiontec Prism2.5 11Mbps USB WLAN Adapter"),
18 	PRISM_DEV(0x1915, 0x2236, "Linksys WUSB11v3.0 11Mbps USB WLAN Adapter"),
19 	PRISM_DEV(0x066b, 0x2212, "Linksys WUSB11v2.5 11Mbps USB WLAN Adapter"),
20 	PRISM_DEV(0x066b, 0x2213, "Linksys WUSB12v1.1 11Mbps USB WLAN Adapter"),
21 	PRISM_DEV(0x0411, 0x0016, "Melco WLI-USB-S11 11Mbps WLAN Adapter"),
22 	PRISM_DEV(0x08de, 0x7a01, "PRISM25 USB IEEE 802.11 Mini Adapter"),
23 	PRISM_DEV(0x8086, 0x1111, "Intel PRO/Wireless 2011B USB LAN Adapter"),
24 	PRISM_DEV(0x0d8e, 0x7a01, "PRISM25 IEEE 802.11 Mini USB Adapter"),
25 	PRISM_DEV(0x045e, 0x006e, "Microsoft MN510 USB Wireless Adapter"),
26 	PRISM_DEV(0x0967, 0x0204, "Acer Warplink USB Adapter"),
27 	PRISM_DEV(0x0cde, 0x0002, "Z-Com 725/726 Prism2.5 USB/USB Integrated"),
28 	PRISM_DEV(0x0cde, 0x0005, "Z-Com Xl735 USB Wireless 802.11b Adapter"),
29 	PRISM_DEV(0x413c, 0x8100, "Dell TrueMobile 1180 USB Wireless Adapter"),
30 	PRISM_DEV(0x0b3b, 0x1601, "ALLNET 0193 11Mbps USB WLAN Adapter"),
31 	PRISM_DEV(0x0b3b, 0x1602, "ZyXEL ZyAIR B200 USB Wireless Adapter"),
32 	PRISM_DEV(0x0baf, 0x00eb, "USRobotics USR1120 USB Wireless Adapter"),
33 	PRISM_DEV(0x0411, 0x0027, "Melco WLI-USB-KS11G 11Mbps WLAN Adapter"),
34 	PRISM_DEV(0x04f1, 0x3009, "JVC MP-XP7250 Builtin USB WLAN Adapter"),
35 	PRISM_DEV(0x0846, 0x4110, "NetGear MA111"),
36 	PRISM_DEV(0x03f3, 0x0020, "Adaptec AWN-8020 USB WLAN Adapter"),
37 	PRISM_DEV(0x2821, 0x3300, "ASUS-WL140 / Hawking HighDB USB Wireless Adapter"),
38 	PRISM_DEV(0x2001, 0x3700, "DWL-122 USB Wireless Adapter"),
39 	PRISM_DEV(0x2001, 0x3702, "DWL-120 Rev F USB Wireless Adapter"),
40 	PRISM_DEV(0x50c2, 0x4013, "Averatec USB WLAN Adapter"),
41 	PRISM_DEV(0x2c02, 0x14ea, "Planex GW-US11H USB WLAN Adapter"),
42 	PRISM_DEV(0x124a, 0x168b, "Airvast PRISM3 USB WLAN Adapter"),
43 	PRISM_DEV(0x083a, 0x3503, "T-Sinus 111 USB WLAN Adapter"),
44 	PRISM_DEV(0x0411, 0x0044, "Melco WLI-USB-KB11 11Mbps WLAN Adapter"),
45 	PRISM_DEV(0x1668, 0x6106, "ROPEX FreeLan USB 802.11b Adapter"),
46 	PRISM_DEV(0x124a, 0x4017, "Pheenet WL-503IA USB 802.11b Adapter"),
47 	PRISM_DEV(0x0bb2, 0x0302, "Ambit Microsystems Corp."),
48 	PRISM_DEV(0x9016, 0x182d, "Sitecom WL-022 USB 802.11b Adapter"),
49 	PRISM_DEV(0x0543, 0x0f01,
50 		  "ViewSonic Airsync USB Adapter 11Mbps (Prism2.5)"),
51 	PRISM_DEV(0x067c, 0x1022,
52 		  "Siemens SpeedStream 1022 11Mbps USB WLAN Adapter"),
53 	PRISM_DEV(0x049f, 0x0033,
54 		  "Compaq/Intel W100 PRO/Wireless 11Mbps multiport WLAN Adapter"),
55 	{ } /* terminator */
56 };
57 MODULE_DEVICE_TABLE(usb, usb_prism_tbl);
58 
prism2sta_probe_usb(struct usb_interface * interface,const struct usb_device_id * id)59 static int prism2sta_probe_usb(struct usb_interface *interface,
60 			       const struct usb_device_id *id)
61 {
62 	struct usb_device *dev;
63 	struct usb_endpoint_descriptor *bulk_in, *bulk_out;
64 	struct usb_host_interface *iface_desc = interface->cur_altsetting;
65 	struct wlandevice *wlandev = NULL;
66 	struct hfa384x *hw = NULL;
67 	int result = 0;
68 
69 	result = usb_find_common_endpoints(iface_desc, &bulk_in, &bulk_out, NULL, NULL);
70 	if (result)
71 		goto failed;
72 
73 	dev = interface_to_usbdev(interface);
74 	wlandev = create_wlan();
75 	if (!wlandev) {
76 		dev_err(&interface->dev, "Memory allocation failure.\n");
77 		result = -EIO;
78 		goto failed;
79 	}
80 	hw = wlandev->priv;
81 
82 	if (wlan_setup(wlandev, &interface->dev) != 0) {
83 		dev_err(&interface->dev, "wlan_setup() failed.\n");
84 		result = -EIO;
85 		goto failed;
86 	}
87 
88 	/* Initialize the hw data */
89 	hw->endp_in = usb_rcvbulkpipe(dev, bulk_in->bEndpointAddress);
90 	hw->endp_out = usb_sndbulkpipe(dev, bulk_out->bEndpointAddress);
91 	hfa384x_create(hw, dev);
92 	hw->wlandev = wlandev;
93 
94 	/* Register the wlandev, this gets us a name and registers the
95 	 * linux netdevice.
96 	 */
97 	SET_NETDEV_DEV(wlandev->netdev, &interface->dev);
98 
99 	/* Do a chip-level reset on the MAC */
100 	if (prism2_doreset) {
101 		result = hfa384x_corereset(hw,
102 					   prism2_reset_holdtime,
103 					   prism2_reset_settletime, 0);
104 		if (result != 0) {
105 			result = -EIO;
106 			dev_err(&interface->dev,
107 				"hfa384x_corereset() failed.\n");
108 			goto failed_reset;
109 		}
110 	}
111 
112 	usb_get_dev(dev);
113 
114 	wlandev->msdstate = WLAN_MSD_HWPRESENT;
115 
116 	/* Try and load firmware, then enable card before we register */
117 	prism2_fwtry(dev, wlandev);
118 	prism2sta_ifstate(wlandev, P80211ENUM_ifstate_enable);
119 
120 	if (register_wlandev(wlandev) != 0) {
121 		dev_err(&interface->dev, "register_wlandev() failed.\n");
122 		result = -EIO;
123 		goto failed_register;
124 	}
125 
126 	goto done;
127 
128 failed_register:
129 	usb_put_dev(dev);
130 failed_reset:
131 	wlan_unsetup(wlandev);
132 failed:
133 	kfree(wlandev);
134 	kfree(hw);
135 	wlandev = NULL;
136 
137 done:
138 	usb_set_intfdata(interface, wlandev);
139 	return result;
140 }
141 
prism2sta_disconnect_usb(struct usb_interface * interface)142 static void prism2sta_disconnect_usb(struct usb_interface *interface)
143 {
144 	struct wlandevice *wlandev;
145 
146 	wlandev = usb_get_intfdata(interface);
147 	if (wlandev) {
148 		LIST_HEAD(cleanlist);
149 		struct hfa384x_usbctlx *ctlx, *temp;
150 		unsigned long flags;
151 
152 		struct hfa384x *hw = wlandev->priv;
153 
154 		if (!hw)
155 			goto exit;
156 
157 		spin_lock_irqsave(&hw->ctlxq.lock, flags);
158 
159 		p80211netdev_hwremoved(wlandev);
160 		list_splice_init(&hw->ctlxq.reapable, &cleanlist);
161 		list_splice_init(&hw->ctlxq.completing, &cleanlist);
162 		list_splice_init(&hw->ctlxq.pending, &cleanlist);
163 		list_splice_init(&hw->ctlxq.active, &cleanlist);
164 
165 		spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
166 
167 		/* There's no hardware to shutdown, but the driver
168 		 * might have some tasks that must be stopped before
169 		 * we can tear everything down.
170 		 */
171 		prism2sta_ifstate(wlandev, P80211ENUM_ifstate_disable);
172 
173 		timer_shutdown_sync(&hw->throttle);
174 		timer_shutdown_sync(&hw->reqtimer);
175 		timer_shutdown_sync(&hw->resptimer);
176 
177 		/* Unlink all the URBs. This "removes the wheels"
178 		 * from the entire CTLX handling mechanism.
179 		 */
180 		usb_kill_urb(&hw->rx_urb);
181 		usb_kill_urb(&hw->tx_urb);
182 		usb_kill_urb(&hw->ctlx_urb);
183 
184 		cancel_work_sync(&hw->completion_bh);
185 		cancel_work_sync(&hw->reaper_bh);
186 
187 		cancel_work_sync(&hw->link_bh);
188 		cancel_work_sync(&hw->commsqual_bh);
189 		cancel_work_sync(&hw->usb_work);
190 
191 		/* Now we complete any outstanding commands
192 		 * and tell everyone who is waiting for their
193 		 * responses that we have shut down.
194 		 */
195 		list_for_each_entry(ctlx, &cleanlist, list)
196 			complete(&ctlx->done);
197 
198 		/* Give any outstanding synchronous commands
199 		 * a chance to complete. All they need to do
200 		 * is "wake up", so that's easy.
201 		 * (I'd like a better way to do this, really.)
202 		 */
203 		msleep(100);
204 
205 		/* Now delete the CTLXs, because no-one else can now. */
206 		list_for_each_entry_safe(ctlx, temp, &cleanlist, list)
207 			kfree(ctlx);
208 
209 		/* Unhook the wlandev */
210 		unregister_wlandev(wlandev);
211 		wlan_unsetup(wlandev);
212 
213 		usb_put_dev(hw->usb);
214 
215 		hfa384x_destroy(hw);
216 		kfree(hw);
217 
218 		kfree(wlandev);
219 	}
220 
221 exit:
222 	usb_set_intfdata(interface, NULL);
223 }
224 
225 #ifdef CONFIG_PM
prism2sta_suspend(struct usb_interface * interface,pm_message_t message)226 static int prism2sta_suspend(struct usb_interface *interface,
227 			     pm_message_t message)
228 {
229 	struct hfa384x *hw = NULL;
230 	struct wlandevice *wlandev;
231 
232 	wlandev = usb_get_intfdata(interface);
233 	if (!wlandev)
234 		return -ENODEV;
235 
236 	hw = wlandev->priv;
237 	if (!hw)
238 		return -ENODEV;
239 
240 	prism2sta_ifstate(wlandev, P80211ENUM_ifstate_disable);
241 
242 	usb_kill_urb(&hw->rx_urb);
243 	usb_kill_urb(&hw->tx_urb);
244 	usb_kill_urb(&hw->ctlx_urb);
245 
246 	return 0;
247 }
248 
prism2sta_resume(struct usb_interface * interface)249 static int prism2sta_resume(struct usb_interface *interface)
250 {
251 	int result = 0;
252 	struct hfa384x *hw = NULL;
253 	struct wlandevice *wlandev;
254 
255 	wlandev = usb_get_intfdata(interface);
256 	if (!wlandev)
257 		return -ENODEV;
258 
259 	hw = wlandev->priv;
260 	if (!hw)
261 		return -ENODEV;
262 
263 	/* Do a chip-level reset on the MAC */
264 	if (prism2_doreset) {
265 		result = hfa384x_corereset(hw,
266 					   prism2_reset_holdtime,
267 					   prism2_reset_settletime, 0);
268 		if (result != 0) {
269 			unregister_wlandev(wlandev);
270 			hfa384x_destroy(hw);
271 			dev_err(&interface->dev, "hfa384x_corereset() failed.\n");
272 			kfree(wlandev);
273 			kfree(hw);
274 			wlandev = NULL;
275 			return -ENODEV;
276 		}
277 	}
278 
279 	prism2sta_ifstate(wlandev, P80211ENUM_ifstate_enable);
280 
281 	return 0;
282 }
283 #else
284 #define prism2sta_suspend NULL
285 #define prism2sta_resume NULL
286 #endif /* CONFIG_PM */
287 
288 static struct usb_driver prism2_usb_driver = {
289 	.name = "prism2_usb",
290 	.probe = prism2sta_probe_usb,
291 	.disconnect = prism2sta_disconnect_usb,
292 	.id_table = usb_prism_tbl,
293 	.suspend = prism2sta_suspend,
294 	.resume = prism2sta_resume,
295 	.reset_resume = prism2sta_resume,
296 	/* fops, minor? */
297 };
298 
299 module_usb_driver(prism2_usb_driver);
300