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Commit | Line | Data |
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eff1a59c MW |
1 | |
2 | /* | |
3 | * Linux device driver for USB based Prism54 | |
4 | * | |
5 | * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> | |
6 | * | |
7 | * Based on the islsm (softmac prism54) driver, which is: | |
8 | * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | #include <linux/init.h> | |
16 | #include <linux/usb.h> | |
17 | #include <linux/pci.h> | |
5a0e3ad6 | 18 | #include <linux/slab.h> |
eff1a59c MW |
19 | #include <linux/firmware.h> |
20 | #include <linux/etherdevice.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/crc32.h> | |
9d9779e7 | 23 | #include <linux/module.h> |
eff1a59c MW |
24 | #include <net/mac80211.h> |
25 | ||
26 | #include "p54.h" | |
d8c92107 | 27 | #include "lmac.h" |
eff1a59c MW |
28 | #include "p54usb.h" |
29 | ||
30 | MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); | |
31 | MODULE_DESCRIPTION("Prism54 USB wireless driver"); | |
32 | MODULE_LICENSE("GPL"); | |
33 | MODULE_ALIAS("prism54usb"); | |
9a8675d7 CL |
34 | MODULE_FIRMWARE("isl3886usb"); |
35 | MODULE_FIRMWARE("isl3887usb"); | |
eff1a59c | 36 | |
1a92795d CL |
37 | /* |
38 | * Note: | |
39 | * | |
40 | * Always update our wiki's device list (located at: | |
41 | * http://wireless.kernel.org/en/users/Drivers/p54/devices ), | |
42 | * whenever you add a new device. | |
43 | */ | |
44 | ||
b9c4167c | 45 | static struct usb_device_id p54u_table[] = { |
eff1a59c | 46 | /* Version 1 devices (pci chip + net2280) */ |
16cad7fb | 47 | {USB_DEVICE(0x0411, 0x0050)}, /* Buffalo WLI2-USB2-G54 */ |
1a92795d | 48 | {USB_DEVICE(0x045e, 0x00c2)}, /* Microsoft MN-710 */ |
eff1a59c | 49 | {USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */ |
4010fe21 | 50 | {USB_DEVICE(0x0675, 0x0530)}, /* DrayTek Vigor 530 */ |
05a9a161 | 51 | {USB_DEVICE(0x06b9, 0x0120)}, /* Thomson SpeedTouch 120g */ |
eff1a59c | 52 | {USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */ |
15a69a81 | 53 | {USB_DEVICE(0x07aa, 0x001c)}, /* Corega CG-WLUSB2GT */ |
eff1a59c MW |
54 | {USB_DEVICE(0x083a, 0x4501)}, /* Accton 802.11g WN4501 USB */ |
55 | {USB_DEVICE(0x083a, 0x4502)}, /* Siemens Gigaset USB Adapter */ | |
1a17582e | 56 | {USB_DEVICE(0x083a, 0x5501)}, /* Phillips CPWUA054 */ |
eff1a59c MW |
57 | {USB_DEVICE(0x0846, 0x4200)}, /* Netgear WG121 */ |
58 | {USB_DEVICE(0x0846, 0x4210)}, /* Netgear WG121 the second ? */ | |
59 | {USB_DEVICE(0x0846, 0x4220)}, /* Netgear WG111 */ | |
ec366eba | 60 | {USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */ |
22010761 | 61 | {USB_DEVICE(0x0bf8, 0x1007)}, /* Fujitsu E-5400 USB */ |
eff1a59c | 62 | {USB_DEVICE(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */ |
16cad7fb | 63 | {USB_DEVICE(0x0db0, 0x6826)}, /* MSI UB54G (MS-6826) */ |
1a92795d | 64 | {USB_DEVICE(0x107b, 0x55f2)}, /* Gateway WGU-210 (Gemtek) */ |
eff1a59c | 65 | {USB_DEVICE(0x124a, 0x4023)}, /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */ |
16cad7fb | 66 | {USB_DEVICE(0x1435, 0x0210)}, /* Inventel UR054G */ |
56e6417b | 67 | {USB_DEVICE(0x15a9, 0x0002)}, /* Gemtek WUBI-100GW 802.11g */ |
1a92795d | 68 | {USB_DEVICE(0x1630, 0x0005)}, /* 2Wire 802.11g USB (v1) / Z-Com */ |
16cad7fb | 69 | {USB_DEVICE(0x182d, 0x096b)}, /* Sitecom WL-107 */ |
eff1a59c MW |
70 | {USB_DEVICE(0x1915, 0x2234)}, /* Linksys WUSB54G OEM */ |
71 | {USB_DEVICE(0x1915, 0x2235)}, /* Linksys WUSB54G Portable OEM */ | |
72 | {USB_DEVICE(0x2001, 0x3701)}, /* DLink DWL-G120 Spinnaker */ | |
73 | {USB_DEVICE(0x2001, 0x3703)}, /* DLink DWL-G122 */ | |
22010761 | 74 | {USB_DEVICE(0x2001, 0x3762)}, /* Conceptronic C54U */ |
eff1a59c MW |
75 | {USB_DEVICE(0x5041, 0x2234)}, /* Linksys WUSB54G */ |
76 | {USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */ | |
77 | ||
78 | /* Version 2 devices (3887) */ | |
4546002c | 79 | {USB_DEVICE(0x0471, 0x1230)}, /* Philips CPWUA054/00 */ |
eff1a59c MW |
80 | {USB_DEVICE(0x050d, 0x7050)}, /* Belkin F5D7050 ver 1000 */ |
81 | {USB_DEVICE(0x0572, 0x2000)}, /* Cohiba Proto board */ | |
82 | {USB_DEVICE(0x0572, 0x2002)}, /* Cohiba Proto board */ | |
1a92795d | 83 | {USB_DEVICE(0x06a9, 0x000e)}, /* Westell 802.11g USB (A90-211WG-01) */ |
878e6a43 | 84 | {USB_DEVICE(0x06b9, 0x0121)}, /* Thomson SpeedTouch 121g */ |
eff1a59c | 85 | {USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */ |
4010fe21 | 86 | {USB_DEVICE(0x0803, 0x4310)}, /* Zoom 4410a */ |
3194b7fc | 87 | {USB_DEVICE(0x083a, 0x4503)}, /* T-Com Sinus 154 data II */ |
eff1a59c | 88 | {USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */ |
9368a9a2 | 89 | {USB_DEVICE(0x083a, 0xc501)}, /* Zoom Wireless-G 4410 */ |
5b9a919a | 90 | {USB_DEVICE(0x083a, 0xf503)}, /* Accton FD7050E ver 1010ec */ |
eff1a59c MW |
91 | {USB_DEVICE(0x0846, 0x4240)}, /* Netgear WG111 (v2) */ |
92 | {USB_DEVICE(0x0915, 0x2000)}, /* Cohiba Proto board */ | |
93 | {USB_DEVICE(0x0915, 0x2002)}, /* Cohiba Proto board */ | |
94 | {USB_DEVICE(0x0baf, 0x0118)}, /* U.S. Robotics U5 802.11g Adapter*/ | |
95 | {USB_DEVICE(0x0bf8, 0x1009)}, /* FUJITSU E-5400 USB D1700*/ | |
7484bdc0 LO |
96 | /* {USB_DEVICE(0x0cde, 0x0006)}, * Medion MD40900 already listed above, |
97 | * just noting it here for clarity */ | |
eff1a59c | 98 | {USB_DEVICE(0x0cde, 0x0008)}, /* Sagem XG703A */ |
f7f71173 | 99 | {USB_DEVICE(0x0cde, 0x0015)}, /* Zcomax XG-705A */ |
eff1a59c | 100 | {USB_DEVICE(0x0d8e, 0x3762)}, /* DLink DWL-G120 Cohiba */ |
43557e15 | 101 | {USB_DEVICE(0x124a, 0x4025)}, /* IOGear GWU513 (GW3887IK chip) */ |
ec366eba | 102 | {USB_DEVICE(0x1260, 0xee22)}, /* SMC 2862W-G version 2 */ |
387e100a | 103 | {USB_DEVICE(0x13b1, 0x000a)}, /* Linksys WUSB54G ver 2 */ |
c1098103 | 104 | {USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */ |
e3062403 | 105 | {USB_DEVICE(0x1413, 0x5400)}, /* Telsey 802.11g USB2.0 Adapter */ |
eff1a59c | 106 | {USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */ |
4010fe21 | 107 | /* {USB_DEVICE(0x15a9, 0x0002)}, * Also SparkLAN WL-682 with 3887 */ |
1a92795d | 108 | {USB_DEVICE(0x1668, 0x1050)}, /* Actiontec 802UIG-1 */ |
2b799a6b | 109 | {USB_DEVICE(0x1740, 0x1000)}, /* Senao NUB-350 */ |
eff1a59c | 110 | {USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */ |
16cad7fb | 111 | {USB_DEVICE(0x2001, 0x3705)}, /* D-Link DWL-G120 rev C1 */ |
0f666a08 | 112 | {USB_DEVICE(0x413c, 0x5513)}, /* Dell WLA3310 USB Wireless Adapter */ |
eff1a59c MW |
113 | {USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */ |
114 | {USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */ | |
115 | {} | |
116 | }; | |
117 | ||
118 | MODULE_DEVICE_TABLE(usb, p54u_table); | |
119 | ||
1ca5f2e9 CL |
120 | static const struct { |
121 | u32 intf; | |
122 | enum p54u_hw_type type; | |
328d84fb | 123 | const char *fw; |
1ca5f2e9 CL |
124 | char hw[20]; |
125 | } p54u_fwlist[__NUM_P54U_HWTYPES] = { | |
126 | { | |
127 | .type = P54U_NET2280, | |
128 | .intf = FW_LM86, | |
129 | .fw = "isl3886usb", | |
1ca5f2e9 CL |
130 | .hw = "ISL3886 + net2280", |
131 | }, | |
132 | { | |
133 | .type = P54U_3887, | |
134 | .intf = FW_LM87, | |
135 | .fw = "isl3887usb", | |
1ca5f2e9 CL |
136 | .hw = "ISL3887", |
137 | }, | |
138 | }; | |
139 | ||
eff1a59c MW |
140 | static void p54u_rx_cb(struct urb *urb) |
141 | { | |
142 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |
143 | struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb; | |
144 | struct ieee80211_hw *dev = info->dev; | |
145 | struct p54u_priv *priv = dev->priv; | |
146 | ||
dd397dc9 CL |
147 | skb_unlink(skb, &priv->rx_queue); |
148 | ||
eff1a59c | 149 | if (unlikely(urb->status)) { |
dd397dc9 | 150 | dev_kfree_skb_irq(skb); |
eff1a59c MW |
151 | return; |
152 | } | |
153 | ||
eff1a59c | 154 | skb_put(skb, urb->actual_length); |
2b80848e CL |
155 | |
156 | if (priv->hw_type == P54U_NET2280) | |
157 | skb_pull(skb, priv->common.tx_hdr_len); | |
158 | if (priv->common.fw_interface == FW_LM87) { | |
159 | skb_pull(skb, 4); | |
160 | skb_put(skb, 4); | |
161 | } | |
eff1a59c MW |
162 | |
163 | if (p54_rx(dev, skb)) { | |
4e416a6f | 164 | skb = dev_alloc_skb(priv->common.rx_mtu + 32); |
eff1a59c | 165 | if (unlikely(!skb)) { |
eff1a59c MW |
166 | /* TODO check rx queue length and refill *somewhere* */ |
167 | return; | |
168 | } | |
169 | ||
170 | info = (struct p54u_rx_info *) skb->cb; | |
171 | info->urb = urb; | |
172 | info->dev = dev; | |
173 | urb->transfer_buffer = skb_tail_pointer(skb); | |
174 | urb->context = skb; | |
eff1a59c | 175 | } else { |
2b80848e CL |
176 | if (priv->hw_type == P54U_NET2280) |
177 | skb_push(skb, priv->common.tx_hdr_len); | |
178 | if (priv->common.fw_interface == FW_LM87) { | |
179 | skb_push(skb, 4); | |
180 | skb_put(skb, 4); | |
181 | } | |
d47c3ceb | 182 | skb_reset_tail_pointer(skb); |
eff1a59c | 183 | skb_trim(skb, 0); |
1ca5f2e9 | 184 | urb->transfer_buffer = skb_tail_pointer(skb); |
eff1a59c | 185 | } |
dd397dc9 CL |
186 | skb_queue_tail(&priv->rx_queue, skb); |
187 | usb_anchor_urb(urb, &priv->submitted); | |
188 | if (usb_submit_urb(urb, GFP_ATOMIC)) { | |
189 | skb_unlink(skb, &priv->rx_queue); | |
190 | usb_unanchor_urb(urb); | |
191 | dev_kfree_skb_irq(skb); | |
192 | } | |
eff1a59c MW |
193 | } |
194 | ||
0a5ec96a | 195 | static void p54u_tx_cb(struct urb *urb) |
b92f30d6 CL |
196 | { |
197 | struct sk_buff *skb = urb->context; | |
b2767363 | 198 | struct ieee80211_hw *dev = |
b92f30d6 CL |
199 | usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); |
200 | ||
e2fe154e | 201 | p54_free_skb(dev, skb); |
dd397dc9 CL |
202 | } |
203 | ||
204 | static void p54u_tx_dummy_cb(struct urb *urb) { } | |
205 | ||
206 | static void p54u_free_urbs(struct ieee80211_hw *dev) | |
207 | { | |
208 | struct p54u_priv *priv = dev->priv; | |
209 | usb_kill_anchored_urbs(&priv->submitted); | |
b92f30d6 CL |
210 | } |
211 | ||
5612a508 LF |
212 | static void p54u_stop(struct ieee80211_hw *dev) |
213 | { | |
214 | /* | |
215 | * TODO: figure out how to reliably stop the 3887 and net2280 so | |
216 | * the hardware is still usable next time we want to start it. | |
217 | * until then, we just stop listening to the hardware.. | |
218 | */ | |
219 | p54u_free_urbs(dev); | |
220 | } | |
221 | ||
eff1a59c MW |
222 | static int p54u_init_urbs(struct ieee80211_hw *dev) |
223 | { | |
224 | struct p54u_priv *priv = dev->priv; | |
dd397dc9 | 225 | struct urb *entry = NULL; |
eff1a59c MW |
226 | struct sk_buff *skb; |
227 | struct p54u_rx_info *info; | |
dd397dc9 | 228 | int ret = 0; |
eff1a59c MW |
229 | |
230 | while (skb_queue_len(&priv->rx_queue) < 32) { | |
4e416a6f | 231 | skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL); |
dd397dc9 CL |
232 | if (!skb) { |
233 | ret = -ENOMEM; | |
234 | goto err; | |
235 | } | |
eff1a59c MW |
236 | entry = usb_alloc_urb(0, GFP_KERNEL); |
237 | if (!entry) { | |
dd397dc9 CL |
238 | ret = -ENOMEM; |
239 | goto err; | |
eff1a59c | 240 | } |
dd397dc9 | 241 | |
4e416a6f CL |
242 | usb_fill_bulk_urb(entry, priv->udev, |
243 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), | |
244 | skb_tail_pointer(skb), | |
245 | priv->common.rx_mtu + 32, p54u_rx_cb, skb); | |
eff1a59c MW |
246 | info = (struct p54u_rx_info *) skb->cb; |
247 | info->urb = entry; | |
248 | info->dev = dev; | |
249 | skb_queue_tail(&priv->rx_queue, skb); | |
dd397dc9 CL |
250 | |
251 | usb_anchor_urb(entry, &priv->submitted); | |
252 | ret = usb_submit_urb(entry, GFP_KERNEL); | |
253 | if (ret) { | |
254 | skb_unlink(skb, &priv->rx_queue); | |
255 | usb_unanchor_urb(entry); | |
256 | goto err; | |
257 | } | |
258 | usb_free_urb(entry); | |
259 | entry = NULL; | |
eff1a59c MW |
260 | } |
261 | ||
262 | return 0; | |
eff1a59c | 263 | |
dd397dc9 CL |
264 | err: |
265 | usb_free_urb(entry); | |
266 | kfree_skb(skb); | |
267 | p54u_free_urbs(dev); | |
268 | return ret; | |
eff1a59c MW |
269 | } |
270 | ||
5612a508 LF |
271 | static int p54u_open(struct ieee80211_hw *dev) |
272 | { | |
273 | /* | |
274 | * TODO: Because we don't know how to reliably stop the 3887 and | |
275 | * the isl3886+net2280, other than brutally cut off all | |
276 | * communications. We have to reinitialize the urbs on every start. | |
277 | */ | |
278 | return p54u_init_urbs(dev); | |
279 | } | |
280 | ||
c9127659 | 281 | static __le32 p54u_lm87_chksum(const __le32 *data, size_t length) |
2b80848e | 282 | { |
1f1c0e33 | 283 | u32 chk = 0; |
2b80848e CL |
284 | |
285 | length >>= 2; | |
286 | while (length--) { | |
c9127659 | 287 | chk ^= le32_to_cpu(*data++); |
2b80848e CL |
288 | chk = (chk >> 5) ^ (chk << 3); |
289 | } | |
290 | ||
1f1c0e33 | 291 | return cpu_to_le32(chk); |
2b80848e CL |
292 | } |
293 | ||
0a5ec96a | 294 | static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb) |
2b80848e CL |
295 | { |
296 | struct p54u_priv *priv = dev->priv; | |
297 | struct urb *data_urb; | |
e2fe154e | 298 | struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr); |
2b80848e CL |
299 | |
300 | data_urb = usb_alloc_urb(0, GFP_ATOMIC); | |
6d541a68 CL |
301 | if (!data_urb) { |
302 | p54_free_skb(dev, skb); | |
2b80848e | 303 | return; |
6d541a68 | 304 | } |
2b80848e | 305 | |
e2fe154e CL |
306 | hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len); |
307 | hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id; | |
2b80848e CL |
308 | |
309 | usb_fill_bulk_urb(data_urb, priv->udev, | |
b92f30d6 | 310 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), |
e2fe154e CL |
311 | hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ? |
312 | p54u_tx_cb : p54u_tx_dummy_cb, skb); | |
00627f22 | 313 | data_urb->transfer_flags |= URB_ZERO_PACKET; |
2b80848e | 314 | |
dd397dc9 CL |
315 | usb_anchor_urb(data_urb, &priv->submitted); |
316 | if (usb_submit_urb(data_urb, GFP_ATOMIC)) { | |
317 | usb_unanchor_urb(data_urb); | |
dd397dc9 CL |
318 | p54_free_skb(dev, skb); |
319 | } | |
320 | usb_free_urb(data_urb); | |
2b80848e CL |
321 | } |
322 | ||
0a5ec96a | 323 | static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb) |
eff1a59c MW |
324 | { |
325 | struct p54u_priv *priv = dev->priv; | |
6d541a68 | 326 | struct urb *int_urb = NULL, *data_urb = NULL; |
e2fe154e | 327 | struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr); |
6d541a68 CL |
328 | struct net2280_reg_write *reg = NULL; |
329 | int err = -ENOMEM; | |
eff1a59c MW |
330 | |
331 | reg = kmalloc(sizeof(*reg), GFP_ATOMIC); | |
332 | if (!reg) | |
6d541a68 | 333 | goto out; |
eff1a59c MW |
334 | |
335 | int_urb = usb_alloc_urb(0, GFP_ATOMIC); | |
6d541a68 CL |
336 | if (!int_urb) |
337 | goto out; | |
eff1a59c MW |
338 | |
339 | data_urb = usb_alloc_urb(0, GFP_ATOMIC); | |
6d541a68 CL |
340 | if (!data_urb) |
341 | goto out; | |
eff1a59c MW |
342 | |
343 | reg->port = cpu_to_le16(NET2280_DEV_U32); | |
344 | reg->addr = cpu_to_le32(P54U_DEV_BASE); | |
345 | reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA); | |
346 | ||
eff1a59c | 347 | memset(hdr, 0, sizeof(*hdr)); |
e2fe154e CL |
348 | hdr->len = cpu_to_le16(skb->len); |
349 | hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id; | |
eff1a59c MW |
350 | |
351 | usb_fill_bulk_urb(int_urb, priv->udev, | |
352 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg), | |
dd397dc9 CL |
353 | p54u_tx_dummy_cb, dev); |
354 | ||
355 | /* | |
6d541a68 CL |
356 | * URB_FREE_BUFFER triggers a code path in the USB subsystem that will |
357 | * free what is inside the transfer_buffer after the last reference to | |
358 | * the int_urb is dropped. | |
dd397dc9 | 359 | */ |
b4068a80 | 360 | int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET; |
6d541a68 | 361 | reg = NULL; |
eff1a59c MW |
362 | |
363 | usb_fill_bulk_urb(data_urb, priv->udev, | |
b92f30d6 | 364 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), |
e2fe154e CL |
365 | hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ? |
366 | p54u_tx_cb : p54u_tx_dummy_cb, skb); | |
b4068a80 | 367 | data_urb->transfer_flags |= URB_ZERO_PACKET; |
dd397dc9 CL |
368 | |
369 | usb_anchor_urb(int_urb, &priv->submitted); | |
370 | err = usb_submit_urb(int_urb, GFP_ATOMIC); | |
371 | if (err) { | |
372 | usb_unanchor_urb(int_urb); | |
373 | goto out; | |
374 | } | |
375 | ||
376 | usb_anchor_urb(data_urb, &priv->submitted); | |
377 | err = usb_submit_urb(data_urb, GFP_ATOMIC); | |
378 | if (err) { | |
379 | usb_unanchor_urb(data_urb); | |
380 | goto out; | |
381 | } | |
6d541a68 | 382 | out: |
dd397dc9 CL |
383 | usb_free_urb(int_urb); |
384 | usb_free_urb(data_urb); | |
385 | ||
386 | if (err) { | |
6d541a68 | 387 | kfree(reg); |
dd397dc9 CL |
388 | p54_free_skb(dev, skb); |
389 | } | |
eff1a59c MW |
390 | } |
391 | ||
392 | static int p54u_write(struct p54u_priv *priv, | |
393 | struct net2280_reg_write *buf, | |
394 | enum net2280_op_type type, | |
395 | __le32 addr, __le32 val) | |
396 | { | |
397 | unsigned int ep; | |
398 | int alen; | |
399 | ||
400 | if (type & 0x0800) | |
401 | ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV); | |
402 | else | |
403 | ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG); | |
404 | ||
405 | buf->port = cpu_to_le16(type); | |
406 | buf->addr = addr; | |
407 | buf->val = val; | |
408 | ||
409 | return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000); | |
410 | } | |
411 | ||
412 | static int p54u_read(struct p54u_priv *priv, void *buf, | |
413 | enum net2280_op_type type, | |
414 | __le32 addr, __le32 *val) | |
415 | { | |
416 | struct net2280_reg_read *read = buf; | |
417 | __le32 *reg = buf; | |
418 | unsigned int ep; | |
419 | int alen, err; | |
420 | ||
421 | if (type & 0x0800) | |
422 | ep = P54U_PIPE_DEV; | |
423 | else | |
424 | ep = P54U_PIPE_BRG; | |
425 | ||
426 | read->port = cpu_to_le16(type); | |
427 | read->addr = addr; | |
428 | ||
429 | err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep), | |
430 | read, sizeof(*read), &alen, 1000); | |
431 | if (err) | |
432 | return err; | |
433 | ||
434 | err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep), | |
435 | reg, sizeof(*reg), &alen, 1000); | |
436 | if (err) | |
437 | return err; | |
438 | ||
439 | *val = *reg; | |
440 | return 0; | |
441 | } | |
442 | ||
443 | static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep, | |
444 | void *data, size_t len) | |
445 | { | |
446 | int alen; | |
447 | return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep), | |
448 | data, len, &alen, 2000); | |
449 | } | |
450 | ||
1ca5f2e9 | 451 | static int p54u_device_reset(struct ieee80211_hw *dev) |
6982869d CL |
452 | { |
453 | struct p54u_priv *priv = dev->priv; | |
c88a768d | 454 | int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING); |
6982869d | 455 | |
c88a768d CL |
456 | if (lock) { |
457 | ret = usb_lock_device_for_reset(priv->udev, priv->intf); | |
458 | if (ret < 0) { | |
459 | dev_err(&priv->udev->dev, "(p54usb) unable to lock " | |
1ca5f2e9 | 460 | "device for reset (%d)!\n", ret); |
c88a768d CL |
461 | return ret; |
462 | } | |
6982869d CL |
463 | } |
464 | ||
465 | ret = usb_reset_device(priv->udev); | |
466 | if (lock) | |
467 | usb_unlock_device(priv->udev); | |
468 | ||
1ca5f2e9 | 469 | if (ret) |
6982869d | 470 | dev_err(&priv->udev->dev, "(p54usb) unable to reset " |
1ca5f2e9 CL |
471 | "device (%d)!\n", ret); |
472 | ||
473 | return ret; | |
474 | } | |
475 | ||
476 | static const char p54u_romboot_3887[] = "~~~~"; | |
477 | static int p54u_firmware_reset_3887(struct ieee80211_hw *dev) | |
478 | { | |
479 | struct p54u_priv *priv = dev->priv; | |
21d6c270 | 480 | u8 *buf; |
1ca5f2e9 | 481 | int ret; |
6982869d | 482 | |
27b81bbe | 483 | buf = kmemdup(p54u_romboot_3887, 4, GFP_KERNEL); |
21d6c270 LF |
484 | if (!buf) |
485 | return -ENOMEM; | |
6982869d | 486 | ret = p54u_bulk_msg(priv, P54U_PIPE_DATA, |
21d6c270 LF |
487 | buf, 4); |
488 | kfree(buf); | |
6982869d CL |
489 | if (ret) |
490 | dev_err(&priv->udev->dev, "(p54usb) unable to jump to " | |
1ca5f2e9 | 491 | "boot ROM (%d)!\n", ret); |
6982869d CL |
492 | |
493 | return ret; | |
494 | } | |
495 | ||
1ca5f2e9 | 496 | static const char p54u_firmware_upload_3887[] = "<\r"; |
eff1a59c MW |
497 | static int p54u_upload_firmware_3887(struct ieee80211_hw *dev) |
498 | { | |
eff1a59c | 499 | struct p54u_priv *priv = dev->priv; |
eff1a59c MW |
500 | int err, alen; |
501 | u8 carry = 0; | |
8b72eb43 DW |
502 | u8 *buf, *tmp; |
503 | const u8 *data; | |
eff1a59c MW |
504 | unsigned int left, remains, block_size; |
505 | struct x2_header *hdr; | |
506 | unsigned long timeout; | |
507 | ||
1ca5f2e9 CL |
508 | err = p54u_firmware_reset_3887(dev); |
509 | if (err) | |
510 | return err; | |
511 | ||
eff1a59c | 512 | tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL); |
0d2e7a5c | 513 | if (!buf) |
1ca5f2e9 | 514 | return -ENOMEM; |
e365f160 | 515 | |
1ca5f2e9 | 516 | left = block_size = min((size_t)P54U_FW_BLOCK, priv->fw->size); |
6982869d CL |
517 | strcpy(buf, p54u_firmware_upload_3887); |
518 | left -= strlen(p54u_firmware_upload_3887); | |
519 | tmp += strlen(p54u_firmware_upload_3887); | |
eff1a59c | 520 | |
1ca5f2e9 CL |
521 | data = priv->fw->data; |
522 | remains = priv->fw->size; | |
eff1a59c | 523 | |
6982869d | 524 | hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887)); |
eff1a59c MW |
525 | memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE); |
526 | hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR); | |
1ca5f2e9 | 527 | hdr->fw_length = cpu_to_le32(priv->fw->size); |
eff1a59c MW |
528 | hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr, |
529 | sizeof(u32)*2)); | |
530 | left -= sizeof(*hdr); | |
531 | tmp += sizeof(*hdr); | |
532 | ||
533 | while (remains) { | |
534 | while (left--) { | |
535 | if (carry) { | |
536 | *tmp++ = carry; | |
537 | carry = 0; | |
538 | remains--; | |
539 | continue; | |
540 | } | |
541 | switch (*data) { | |
542 | case '~': | |
543 | *tmp++ = '}'; | |
544 | carry = '^'; | |
545 | break; | |
546 | case '}': | |
547 | *tmp++ = '}'; | |
548 | carry = ']'; | |
549 | break; | |
550 | default: | |
551 | *tmp++ = *data; | |
552 | remains--; | |
553 | break; | |
554 | } | |
555 | data++; | |
556 | } | |
557 | ||
558 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size); | |
559 | if (err) { | |
02e37ba1 CL |
560 | dev_err(&priv->udev->dev, "(p54usb) firmware " |
561 | "upload failed!\n"); | |
eff1a59c MW |
562 | goto err_upload_failed; |
563 | } | |
564 | ||
565 | tmp = buf; | |
566 | left = block_size = min((unsigned int)P54U_FW_BLOCK, remains); | |
567 | } | |
568 | ||
1ca5f2e9 CL |
569 | *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, priv->fw->data, |
570 | priv->fw->size)); | |
eff1a59c MW |
571 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32)); |
572 | if (err) { | |
02e37ba1 | 573 | dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n"); |
eff1a59c MW |
574 | goto err_upload_failed; |
575 | } | |
eff1a59c MW |
576 | timeout = jiffies + msecs_to_jiffies(1000); |
577 | while (!(err = usb_bulk_msg(priv->udev, | |
578 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { | |
579 | if (alen > 2 && !memcmp(buf, "OK", 2)) | |
580 | break; | |
581 | ||
582 | if (alen > 5 && !memcmp(buf, "ERROR", 5)) { | |
eff1a59c MW |
583 | err = -EINVAL; |
584 | break; | |
585 | } | |
586 | ||
587 | if (time_after(jiffies, timeout)) { | |
02e37ba1 CL |
588 | dev_err(&priv->udev->dev, "(p54usb) firmware boot " |
589 | "timed out!\n"); | |
eff1a59c MW |
590 | err = -ETIMEDOUT; |
591 | break; | |
592 | } | |
593 | } | |
02e37ba1 CL |
594 | if (err) { |
595 | dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n"); | |
eff1a59c | 596 | goto err_upload_failed; |
02e37ba1 | 597 | } |
eff1a59c MW |
598 | |
599 | buf[0] = 'g'; | |
600 | buf[1] = '\r'; | |
601 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2); | |
602 | if (err) { | |
02e37ba1 | 603 | dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n"); |
eff1a59c MW |
604 | goto err_upload_failed; |
605 | } | |
606 | ||
607 | timeout = jiffies + msecs_to_jiffies(1000); | |
608 | while (!(err = usb_bulk_msg(priv->udev, | |
609 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { | |
610 | if (alen > 0 && buf[0] == 'g') | |
611 | break; | |
612 | ||
613 | if (time_after(jiffies, timeout)) { | |
614 | err = -ETIMEDOUT; | |
615 | break; | |
616 | } | |
617 | } | |
618 | if (err) | |
619 | goto err_upload_failed; | |
620 | ||
1ca5f2e9 | 621 | err_upload_failed: |
eff1a59c | 622 | kfree(buf); |
eff1a59c MW |
623 | return err; |
624 | } | |
625 | ||
626 | static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) | |
627 | { | |
628 | struct p54u_priv *priv = dev->priv; | |
eff1a59c MW |
629 | const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE; |
630 | int err, alen; | |
631 | void *buf; | |
632 | __le32 reg; | |
633 | unsigned int remains, offset; | |
8b72eb43 | 634 | const u8 *data; |
eff1a59c MW |
635 | |
636 | buf = kmalloc(512, GFP_KERNEL); | |
0d2e7a5c | 637 | if (!buf) |
eff1a59c | 638 | return -ENOMEM; |
eff1a59c | 639 | |
eff1a59c MW |
640 | #define P54U_WRITE(type, addr, data) \ |
641 | do {\ | |
642 | err = p54u_write(priv, buf, type,\ | |
643 | cpu_to_le32((u32)(unsigned long)addr), data);\ | |
644 | if (err) \ | |
645 | goto fail;\ | |
646 | } while (0) | |
647 | ||
648 | #define P54U_READ(type, addr) \ | |
649 | do {\ | |
650 | err = p54u_read(priv, buf, type,\ | |
651 | cpu_to_le32((u32)(unsigned long)addr), ®);\ | |
652 | if (err)\ | |
653 | goto fail;\ | |
654 | } while (0) | |
655 | ||
656 | /* power down net2280 bridge */ | |
657 | P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL); | |
658 | reg |= cpu_to_le32(P54U_BRG_POWER_DOWN); | |
659 | reg &= cpu_to_le32(~P54U_BRG_POWER_UP); | |
660 | P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); | |
661 | ||
662 | mdelay(100); | |
663 | ||
664 | /* power up bridge */ | |
665 | reg |= cpu_to_le32(P54U_BRG_POWER_UP); | |
666 | reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN); | |
667 | P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); | |
668 | ||
669 | mdelay(100); | |
670 | ||
671 | P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT, | |
672 | cpu_to_le32(NET2280_CLK_30Mhz | | |
673 | NET2280_PCI_ENABLE | | |
674 | NET2280_PCI_SOFT_RESET)); | |
675 | ||
676 | mdelay(20); | |
677 | ||
678 | P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND, | |
679 | cpu_to_le32(PCI_COMMAND_MEMORY | | |
680 | PCI_COMMAND_MASTER)); | |
681 | ||
682 | P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0, | |
683 | cpu_to_le32(NET2280_BASE)); | |
684 | ||
685 | P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS); | |
686 | reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT); | |
687 | P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg); | |
688 | ||
689 | // TODO: we really need this? | |
690 | P54U_READ(NET2280_BRG_U32, NET2280_RELNUM); | |
691 | ||
692 | P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP, | |
693 | cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); | |
694 | P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP, | |
695 | cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); | |
696 | ||
697 | P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2, | |
698 | cpu_to_le32(NET2280_BASE2)); | |
699 | ||
700 | /* finally done setting up the bridge */ | |
701 | ||
702 | P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND, | |
703 | cpu_to_le32(PCI_COMMAND_MEMORY | | |
704 | PCI_COMMAND_MASTER)); | |
705 | ||
706 | P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0); | |
707 | P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0, | |
708 | cpu_to_le32(P54U_DEV_BASE)); | |
709 | ||
710 | P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); | |
711 | P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, | |
712 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); | |
713 | ||
714 | /* do romboot */ | |
715 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0); | |
716 | ||
717 | P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); | |
718 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
719 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT); | |
720 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); | |
721 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
722 | ||
723 | mdelay(20); | |
724 | ||
725 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); | |
726 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
727 | ||
728 | mdelay(20); | |
729 | ||
730 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
731 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
732 | ||
733 | mdelay(100); | |
734 | ||
735 | P54U_READ(NET2280_DEV_U32, &devreg->int_ident); | |
736 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); | |
737 | ||
738 | /* finally, we can upload firmware now! */ | |
1ca5f2e9 CL |
739 | remains = priv->fw->size; |
740 | data = priv->fw->data; | |
eff1a59c MW |
741 | offset = ISL38XX_DEV_FIRMWARE_ADDR; |
742 | ||
743 | while (remains) { | |
744 | unsigned int block_len = min(remains, (unsigned int)512); | |
745 | memcpy(buf, data, block_len); | |
746 | ||
747 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len); | |
748 | if (err) { | |
02e37ba1 CL |
749 | dev_err(&priv->udev->dev, "(p54usb) firmware block " |
750 | "upload failed\n"); | |
eff1a59c MW |
751 | goto fail; |
752 | } | |
753 | ||
754 | P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base, | |
755 | cpu_to_le32(0xc0000f00)); | |
756 | ||
757 | P54U_WRITE(NET2280_DEV_U32, | |
758 | 0x0020 | (unsigned long)&devreg->direct_mem_win, 0); | |
759 | P54U_WRITE(NET2280_DEV_U32, | |
760 | 0x0020 | (unsigned long)&devreg->direct_mem_win, | |
761 | cpu_to_le32(1)); | |
762 | ||
763 | P54U_WRITE(NET2280_DEV_U32, | |
764 | 0x0024 | (unsigned long)&devreg->direct_mem_win, | |
765 | cpu_to_le32(block_len)); | |
766 | P54U_WRITE(NET2280_DEV_U32, | |
767 | 0x0028 | (unsigned long)&devreg->direct_mem_win, | |
768 | cpu_to_le32(offset)); | |
769 | ||
770 | P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr, | |
771 | cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR)); | |
772 | P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len, | |
773 | cpu_to_le32(block_len >> 2)); | |
774 | P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl, | |
775 | cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER)); | |
776 | ||
777 | mdelay(10); | |
778 | ||
779 | P54U_READ(NET2280_DEV_U32, | |
780 | 0x002C | (unsigned long)&devreg->direct_mem_win); | |
781 | if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) || | |
782 | !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) { | |
02e37ba1 CL |
783 | dev_err(&priv->udev->dev, "(p54usb) firmware DMA " |
784 | "transfer failed\n"); | |
eff1a59c MW |
785 | goto fail; |
786 | } | |
787 | ||
788 | P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT, | |
789 | cpu_to_le32(NET2280_FIFO_FLUSH)); | |
790 | ||
791 | remains -= block_len; | |
792 | data += block_len; | |
793 | offset += block_len; | |
794 | } | |
795 | ||
796 | /* do ramboot */ | |
797 | P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); | |
798 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
799 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); | |
800 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT); | |
801 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
802 | ||
803 | mdelay(20); | |
804 | ||
805 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); | |
806 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
807 | ||
808 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
809 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
810 | ||
811 | mdelay(100); | |
812 | ||
813 | P54U_READ(NET2280_DEV_U32, &devreg->int_ident); | |
814 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); | |
815 | ||
816 | /* start up the firmware */ | |
817 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, | |
818 | cpu_to_le32(ISL38XX_INT_IDENT_INIT)); | |
819 | ||
820 | P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, | |
821 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); | |
822 | ||
823 | P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, | |
824 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE | | |
825 | NET2280_USB_INTERRUPT_ENABLE)); | |
826 | ||
827 | P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int, | |
828 | cpu_to_le32(ISL38XX_DEV_INT_RESET)); | |
829 | ||
830 | err = usb_interrupt_msg(priv->udev, | |
831 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT), | |
832 | buf, sizeof(__le32), &alen, 1000); | |
833 | if (err || alen != sizeof(__le32)) | |
834 | goto fail; | |
835 | ||
836 | P54U_READ(NET2280_DEV_U32, &devreg->int_ident); | |
837 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); | |
838 | ||
839 | if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT))) | |
840 | err = -EINVAL; | |
841 | ||
842 | P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); | |
843 | P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, | |
844 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); | |
845 | ||
846 | #undef P54U_WRITE | |
847 | #undef P54U_READ | |
848 | ||
1ca5f2e9 | 849 | fail: |
eff1a59c MW |
850 | kfree(buf); |
851 | return err; | |
852 | } | |
853 | ||
5612a508 | 854 | static int p54_find_type(struct p54u_priv *priv) |
1ca5f2e9 | 855 | { |
5612a508 | 856 | int i; |
1ca5f2e9 CL |
857 | |
858 | for (i = 0; i < __NUM_P54U_HWTYPES; i++) | |
859 | if (p54u_fwlist[i].type == priv->hw_type) | |
860 | break; | |
1ca5f2e9 CL |
861 | if (i == __NUM_P54U_HWTYPES) |
862 | return -EOPNOTSUPP; | |
863 | ||
5612a508 LF |
864 | return i; |
865 | } | |
1ca5f2e9 | 866 | |
5612a508 LF |
867 | static int p54u_start_ops(struct p54u_priv *priv) |
868 | { | |
869 | struct ieee80211_hw *dev = priv->common.hw; | |
870 | int ret; | |
1ca5f2e9 | 871 | |
5612a508 LF |
872 | ret = p54_parse_firmware(dev, priv->fw); |
873 | if (ret) | |
874 | goto err_out; | |
875 | ||
876 | ret = p54_find_type(priv); | |
877 | if (ret < 0) | |
878 | goto err_out; | |
1ca5f2e9 | 879 | |
5612a508 | 880 | if (priv->common.fw_interface != p54u_fwlist[ret].intf) { |
1ca5f2e9 CL |
881 | dev_err(&priv->udev->dev, "wrong firmware, please get " |
882 | "a firmware for \"%s\" and try again.\n", | |
5612a508 LF |
883 | p54u_fwlist[ret].hw); |
884 | ret = -ENODEV; | |
885 | goto err_out; | |
1ca5f2e9 CL |
886 | } |
887 | ||
5612a508 LF |
888 | ret = priv->upload_fw(dev); |
889 | if (ret) | |
890 | goto err_out; | |
1ca5f2e9 | 891 | |
5612a508 LF |
892 | ret = p54u_open(dev); |
893 | if (ret) | |
894 | goto err_out; | |
895 | ||
896 | ret = p54_read_eeprom(dev); | |
897 | if (ret) | |
898 | goto err_stop; | |
899 | ||
900 | p54u_stop(dev); | |
901 | ||
902 | ret = p54_register_common(dev, &priv->udev->dev); | |
903 | if (ret) | |
904 | goto err_stop; | |
905 | ||
906 | return 0; | |
907 | ||
908 | err_stop: | |
909 | p54u_stop(dev); | |
910 | ||
911 | err_out: | |
912 | /* | |
913 | * p54u_disconnect will do the rest of the | |
914 | * cleanup | |
915 | */ | |
916 | return ret; | |
1ca5f2e9 CL |
917 | } |
918 | ||
5612a508 LF |
919 | static void p54u_load_firmware_cb(const struct firmware *firmware, |
920 | void *context) | |
eff1a59c | 921 | { |
5612a508 LF |
922 | struct p54u_priv *priv = context; |
923 | struct usb_device *udev = priv->udev; | |
eff1a59c MW |
924 | int err; |
925 | ||
5612a508 LF |
926 | complete(&priv->fw_wait_load); |
927 | if (firmware) { | |
928 | priv->fw = firmware; | |
929 | err = p54u_start_ops(priv); | |
930 | } else { | |
931 | err = -ENOENT; | |
932 | dev_err(&udev->dev, "Firmware not found.\n"); | |
eff1a59c MW |
933 | } |
934 | ||
5612a508 LF |
935 | if (err) { |
936 | struct device *parent = priv->udev->dev.parent; | |
eff1a59c | 937 | |
5612a508 LF |
938 | dev_err(&udev->dev, "failed to initialize device (%d)\n", err); |
939 | ||
940 | if (parent) | |
941 | device_lock(parent); | |
942 | ||
943 | device_release_driver(&udev->dev); | |
944 | /* | |
945 | * At this point p54u_disconnect has already freed | |
946 | * the "priv" context. Do not use it anymore! | |
947 | */ | |
948 | priv = NULL; | |
949 | ||
950 | if (parent) | |
951 | device_unlock(parent); | |
952 | } | |
953 | ||
954 | usb_put_dev(udev); | |
eff1a59c MW |
955 | } |
956 | ||
5612a508 LF |
957 | static int p54u_load_firmware(struct ieee80211_hw *dev, |
958 | struct usb_interface *intf) | |
eff1a59c | 959 | { |
5612a508 LF |
960 | struct usb_device *udev = interface_to_usbdev(intf); |
961 | struct p54u_priv *priv = dev->priv; | |
962 | struct device *device = &udev->dev; | |
963 | int err, i; | |
964 | ||
965 | BUILD_BUG_ON(ARRAY_SIZE(p54u_fwlist) != __NUM_P54U_HWTYPES); | |
966 | ||
967 | init_completion(&priv->fw_wait_load); | |
968 | i = p54_find_type(priv); | |
969 | if (i < 0) | |
970 | return i; | |
971 | ||
972 | dev_info(&priv->udev->dev, "Loading firmware file %s\n", | |
973 | p54u_fwlist[i].fw); | |
974 | ||
975 | usb_get_dev(udev); | |
976 | err = request_firmware_nowait(THIS_MODULE, 1, p54u_fwlist[i].fw, | |
977 | device, GFP_KERNEL, priv, | |
978 | p54u_load_firmware_cb); | |
979 | if (err) { | |
980 | dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s " | |
981 | "(%d)!\n", p54u_fwlist[i].fw, err); | |
982 | } | |
983 | ||
984 | return err; | |
eff1a59c MW |
985 | } |
986 | ||
337b563f | 987 | static int p54u_probe(struct usb_interface *intf, |
eff1a59c MW |
988 | const struct usb_device_id *id) |
989 | { | |
990 | struct usb_device *udev = interface_to_usbdev(intf); | |
991 | struct ieee80211_hw *dev; | |
992 | struct p54u_priv *priv; | |
993 | int err; | |
994 | unsigned int i, recognized_pipes; | |
eff1a59c MW |
995 | |
996 | dev = p54_init_common(sizeof(*priv)); | |
02e37ba1 | 997 | |
eff1a59c | 998 | if (!dev) { |
02e37ba1 | 999 | dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n"); |
eff1a59c MW |
1000 | return -ENOMEM; |
1001 | } | |
1002 | ||
1003 | priv = dev->priv; | |
1ca5f2e9 | 1004 | priv->hw_type = P54U_INVALID_HW; |
eff1a59c MW |
1005 | |
1006 | SET_IEEE80211_DEV(dev, &intf->dev); | |
1007 | usb_set_intfdata(intf, dev); | |
1008 | priv->udev = udev; | |
6982869d CL |
1009 | priv->intf = intf; |
1010 | skb_queue_head_init(&priv->rx_queue); | |
1011 | init_usb_anchor(&priv->submitted); | |
eff1a59c MW |
1012 | |
1013 | usb_get_dev(udev); | |
1014 | ||
1015 | /* really lazy and simple way of figuring out if we're a 3887 */ | |
1016 | /* TODO: should just stick the identification in the device table */ | |
1017 | i = intf->altsetting->desc.bNumEndpoints; | |
1018 | recognized_pipes = 0; | |
1019 | while (i--) { | |
1020 | switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) { | |
1021 | case P54U_PIPE_DATA: | |
1022 | case P54U_PIPE_MGMT: | |
1023 | case P54U_PIPE_BRG: | |
1024 | case P54U_PIPE_DEV: | |
1025 | case P54U_PIPE_DATA | USB_DIR_IN: | |
1026 | case P54U_PIPE_MGMT | USB_DIR_IN: | |
1027 | case P54U_PIPE_BRG | USB_DIR_IN: | |
1028 | case P54U_PIPE_DEV | USB_DIR_IN: | |
1029 | case P54U_PIPE_INT | USB_DIR_IN: | |
1030 | recognized_pipes++; | |
1031 | } | |
1032 | } | |
1033 | priv->common.open = p54u_open; | |
2b80848e | 1034 | priv->common.stop = p54u_stop; |
eff1a59c | 1035 | if (recognized_pipes < P54U_PIPE_NUMBER) { |
13792578 | 1036 | #ifdef CONFIG_PM |
1ca5f2e9 CL |
1037 | /* ISL3887 needs a full reset on resume */ |
1038 | udev->reset_resume = 1; | |
11791a6f | 1039 | #endif /* CONFIG_PM */ |
1ca5f2e9 CL |
1040 | err = p54u_device_reset(dev); |
1041 | ||
eff1a59c | 1042 | priv->hw_type = P54U_3887; |
a406ac0d CL |
1043 | dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr); |
1044 | priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr); | |
1045 | priv->common.tx = p54u_tx_lm87; | |
1ca5f2e9 | 1046 | priv->upload_fw = p54u_upload_firmware_3887; |
eff1a59c | 1047 | } else { |
2b80848e | 1048 | priv->hw_type = P54U_NET2280; |
eff1a59c MW |
1049 | dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr); |
1050 | priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr); | |
1051 | priv->common.tx = p54u_tx_net2280; | |
1ca5f2e9 | 1052 | priv->upload_fw = p54u_upload_firmware_net2280; |
2b80848e | 1053 | } |
5612a508 | 1054 | err = p54u_load_firmware(dev, intf); |
eff1a59c MW |
1055 | return err; |
1056 | } | |
1057 | ||
337b563f | 1058 | static void p54u_disconnect(struct usb_interface *intf) |
eff1a59c MW |
1059 | { |
1060 | struct ieee80211_hw *dev = usb_get_intfdata(intf); | |
1061 | struct p54u_priv *priv; | |
1062 | ||
1063 | if (!dev) | |
1064 | return; | |
1065 | ||
5612a508 LF |
1066 | priv = dev->priv; |
1067 | wait_for_completion(&priv->fw_wait_load); | |
d8c92107 | 1068 | p54_unregister_common(dev); |
eff1a59c | 1069 | |
eff1a59c | 1070 | usb_put_dev(interface_to_usbdev(intf)); |
1ca5f2e9 | 1071 | release_firmware(priv->fw); |
eff1a59c | 1072 | p54_free_common(dev); |
eff1a59c MW |
1073 | } |
1074 | ||
6982869d CL |
1075 | static int p54u_pre_reset(struct usb_interface *intf) |
1076 | { | |
1ca5f2e9 CL |
1077 | struct ieee80211_hw *dev = usb_get_intfdata(intf); |
1078 | ||
1079 | if (!dev) | |
1080 | return -ENODEV; | |
1081 | ||
1082 | p54u_stop(dev); | |
6982869d CL |
1083 | return 0; |
1084 | } | |
1085 | ||
1ca5f2e9 CL |
1086 | static int p54u_resume(struct usb_interface *intf) |
1087 | { | |
1088 | struct ieee80211_hw *dev = usb_get_intfdata(intf); | |
1089 | struct p54u_priv *priv; | |
1090 | ||
1091 | if (!dev) | |
1092 | return -ENODEV; | |
1093 | ||
1094 | priv = dev->priv; | |
1095 | if (unlikely(!(priv->upload_fw && priv->fw))) | |
1096 | return 0; | |
1097 | ||
1098 | return priv->upload_fw(dev); | |
1099 | } | |
1100 | ||
6982869d CL |
1101 | static int p54u_post_reset(struct usb_interface *intf) |
1102 | { | |
1ca5f2e9 CL |
1103 | struct ieee80211_hw *dev = usb_get_intfdata(intf); |
1104 | struct p54u_priv *priv; | |
1105 | int err; | |
1106 | ||
1107 | err = p54u_resume(intf); | |
1108 | if (err) | |
1109 | return err; | |
1110 | ||
1111 | /* reinitialize old device state */ | |
1112 | priv = dev->priv; | |
1113 | if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED) | |
1114 | ieee80211_restart_hw(dev); | |
1115 | ||
6982869d CL |
1116 | return 0; |
1117 | } | |
1118 | ||
1ca5f2e9 CL |
1119 | #ifdef CONFIG_PM |
1120 | ||
1121 | static int p54u_suspend(struct usb_interface *intf, pm_message_t message) | |
1122 | { | |
1123 | return p54u_pre_reset(intf); | |
1124 | } | |
1125 | ||
1126 | #endif /* CONFIG_PM */ | |
1127 | ||
eff1a59c | 1128 | static struct usb_driver p54u_driver = { |
32ddf071 | 1129 | .name = "p54usb", |
eff1a59c MW |
1130 | .id_table = p54u_table, |
1131 | .probe = p54u_probe, | |
337b563f | 1132 | .disconnect = p54u_disconnect, |
6982869d CL |
1133 | .pre_reset = p54u_pre_reset, |
1134 | .post_reset = p54u_post_reset, | |
1ca5f2e9 CL |
1135 | #ifdef CONFIG_PM |
1136 | .suspend = p54u_suspend, | |
1137 | .resume = p54u_resume, | |
1138 | .reset_resume = p54u_resume, | |
1139 | #endif /* CONFIG_PM */ | |
fbf95296 | 1140 | .soft_unbind = 1, |
e1f12eb6 | 1141 | .disable_hub_initiated_lpm = 1, |
eff1a59c MW |
1142 | }; |
1143 | ||
d632eb1b | 1144 | module_usb_driver(p54u_driver); |