Merge branch 'fixes-jgarzik' of git://git.kernel.org/pub/scm/linux/kernel/git/linvill...
[linux-2.6] / drivers / net / wireless / rtl8187_dev.c
1 /*
2  * Linux device driver for RTL8187
3  *
4  * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
5  * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
6  *
7  * Based on the r8187 driver, which is:
8  * Copyright 2005 Andrea Merello <andreamrl@tiscali.it>, et al.
9  *
10  * Magic delays and register offsets below are taken from the original
11  * r8187 driver sources.  Thanks to Realtek for their support!
12  *
13  * This program is free software; you can redistribute it and/or modify
14  * it under the terms of the GNU General Public License version 2 as
15  * published by the Free Software Foundation.
16  */
17
18 #include <linux/init.h>
19 #include <linux/usb.h>
20 #include <linux/delay.h>
21 #include <linux/etherdevice.h>
22 #include <linux/eeprom_93cx6.h>
23 #include <net/mac80211.h>
24
25 #include "rtl8187.h"
26 #include "rtl8187_rtl8225.h"
27
28 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
29 MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
30 MODULE_DESCRIPTION("RTL8187 USB wireless driver");
31 MODULE_LICENSE("GPL");
32
33 static struct usb_device_id rtl8187_table[] __devinitdata = {
34         /* Realtek */
35         {USB_DEVICE(0x0bda, 0x8187)},
36         /* Netgear */
37         {USB_DEVICE(0x0846, 0x6100)},
38         {USB_DEVICE(0x0846, 0x6a00)},
39         /* HP */
40         {USB_DEVICE(0x03f0, 0xca02)},
41         {}
42 };
43
44 MODULE_DEVICE_TABLE(usb, rtl8187_table);
45
46 static void rtl8187_iowrite_async_cb(struct urb *urb)
47 {
48         kfree(urb->context);
49         usb_free_urb(urb);
50 }
51
52 static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
53                                   void *data, u16 len)
54 {
55         struct usb_ctrlrequest *dr;
56         struct urb *urb;
57         struct rtl8187_async_write_data {
58                 u8 data[4];
59                 struct usb_ctrlrequest dr;
60         } *buf;
61
62         buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
63         if (!buf)
64                 return;
65
66         urb = usb_alloc_urb(0, GFP_ATOMIC);
67         if (!urb) {
68                 kfree(buf);
69                 return;
70         }
71
72         dr = &buf->dr;
73
74         dr->bRequestType = RTL8187_REQT_WRITE;
75         dr->bRequest = RTL8187_REQ_SET_REG;
76         dr->wValue = addr;
77         dr->wIndex = 0;
78         dr->wLength = cpu_to_le16(len);
79
80         memcpy(buf, data, len);
81
82         usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
83                              (unsigned char *)dr, buf, len,
84                              rtl8187_iowrite_async_cb, buf);
85         usb_submit_urb(urb, GFP_ATOMIC);
86 }
87
88 static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
89                                            __le32 *addr, u32 val)
90 {
91         __le32 buf = cpu_to_le32(val);
92
93         rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
94                               &buf, sizeof(buf));
95 }
96
97 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
98 {
99         struct rtl8187_priv *priv = dev->priv;
100
101         data <<= 8;
102         data |= addr | 0x80;
103
104         rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
105         rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
106         rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
107         rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
108
109         msleep(1);
110 }
111
112 static void rtl8187_tx_cb(struct urb *urb)
113 {
114         struct ieee80211_tx_status status = { {0} };
115         struct sk_buff *skb = (struct sk_buff *)urb->context;
116         struct rtl8187_tx_info *info = (struct rtl8187_tx_info *)skb->cb;
117
118         usb_free_urb(info->urb);
119         if (info->control)
120                 memcpy(&status.control, info->control, sizeof(status.control));
121         kfree(info->control);
122         skb_pull(skb, sizeof(struct rtl8187_tx_hdr));
123         status.flags |= IEEE80211_TX_STATUS_ACK;
124         ieee80211_tx_status_irqsafe(info->dev, skb, &status);
125 }
126
127 static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb,
128                       struct ieee80211_tx_control *control)
129 {
130         struct rtl8187_priv *priv = dev->priv;
131         struct rtl8187_tx_hdr *hdr;
132         struct rtl8187_tx_info *info;
133         struct urb *urb;
134         __le16 rts_dur = 0;
135         u32 flags;
136
137         urb = usb_alloc_urb(0, GFP_ATOMIC);
138         if (!urb) {
139                 kfree_skb(skb);
140                 return 0;
141         }
142
143         flags = skb->len;
144         flags |= RTL8187_TX_FLAG_NO_ENCRYPT;
145         flags |= control->rts_cts_rate << 19;
146         flags |= control->tx_rate << 24;
147         if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb->data))
148                 flags |= RTL8187_TX_FLAG_MORE_FRAG;
149         if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
150                 flags |= RTL8187_TX_FLAG_RTS;
151                 rts_dur = ieee80211_rts_duration(dev, priv->if_id, skb->len, control);
152         }
153         if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
154                 flags |= RTL8187_TX_FLAG_CTS;
155
156         hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
157         hdr->flags = cpu_to_le32(flags);
158         hdr->len = 0;
159         hdr->rts_duration = rts_dur;
160         hdr->retry = cpu_to_le32(control->retry_limit << 8);
161
162         info = (struct rtl8187_tx_info *)skb->cb;
163         info->control = kmemdup(control, sizeof(*control), GFP_ATOMIC);
164         info->urb = urb;
165         info->dev = dev;
166         usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, 2),
167                           hdr, skb->len, rtl8187_tx_cb, skb);
168         usb_submit_urb(urb, GFP_ATOMIC);
169
170         return 0;
171 }
172
173 static void rtl8187_rx_cb(struct urb *urb)
174 {
175         struct sk_buff *skb = (struct sk_buff *)urb->context;
176         struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
177         struct ieee80211_hw *dev = info->dev;
178         struct rtl8187_priv *priv = dev->priv;
179         struct rtl8187_rx_hdr *hdr;
180         struct ieee80211_rx_status rx_status = { 0 };
181         int rate, signal;
182         u32 flags;
183
184         spin_lock(&priv->rx_queue.lock);
185         if (skb->next)
186                 __skb_unlink(skb, &priv->rx_queue);
187         else {
188                 spin_unlock(&priv->rx_queue.lock);
189                 return;
190         }
191         spin_unlock(&priv->rx_queue.lock);
192
193         if (unlikely(urb->status)) {
194                 usb_free_urb(urb);
195                 dev_kfree_skb_irq(skb);
196                 return;
197         }
198
199         skb_put(skb, urb->actual_length);
200         hdr = (struct rtl8187_rx_hdr *)(skb_tail_pointer(skb) - sizeof(*hdr));
201         flags = le32_to_cpu(hdr->flags);
202         skb_trim(skb, flags & 0x0FFF);
203
204         signal = hdr->agc >> 1;
205         rate = (flags >> 20) & 0xF;
206         if (rate > 3) { /* OFDM rate */
207                 if (signal > 90)
208                         signal = 90;
209                 else if (signal < 25)
210                         signal = 25;
211                 signal = 90 - signal;
212         } else {        /* CCK rate */
213                 if (signal > 95)
214                         signal = 95;
215                 else if (signal < 30)
216                         signal = 30;
217                 signal = 95 - signal;
218         }
219
220         rx_status.antenna = (hdr->signal >> 7) & 1;
221         rx_status.signal = 64 - min(hdr->noise, (u8)64);
222         rx_status.ssi = signal;
223         rx_status.rate = rate;
224         rx_status.freq = dev->conf.freq;
225         rx_status.channel = dev->conf.channel;
226         rx_status.phymode = dev->conf.phymode;
227         rx_status.mactime = le64_to_cpu(hdr->mac_time);
228         if (flags & (1 << 13))
229                 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
230         ieee80211_rx_irqsafe(dev, skb, &rx_status);
231
232         skb = dev_alloc_skb(RTL8187_MAX_RX);
233         if (unlikely(!skb)) {
234                 usb_free_urb(urb);
235                 /* TODO check rx queue length and refill *somewhere* */
236                 return;
237         }
238
239         info = (struct rtl8187_rx_info *)skb->cb;
240         info->urb = urb;
241         info->dev = dev;
242         urb->transfer_buffer = skb_tail_pointer(skb);
243         urb->context = skb;
244         skb_queue_tail(&priv->rx_queue, skb);
245
246         usb_submit_urb(urb, GFP_ATOMIC);
247 }
248
249 static int rtl8187_init_urbs(struct ieee80211_hw *dev)
250 {
251         struct rtl8187_priv *priv = dev->priv;
252         struct urb *entry;
253         struct sk_buff *skb;
254         struct rtl8187_rx_info *info;
255
256         while (skb_queue_len(&priv->rx_queue) < 8) {
257                 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
258                 if (!skb)
259                         break;
260                 entry = usb_alloc_urb(0, GFP_KERNEL);
261                 if (!entry) {
262                         kfree_skb(skb);
263                         break;
264                 }
265                 usb_fill_bulk_urb(entry, priv->udev,
266                                   usb_rcvbulkpipe(priv->udev, 1),
267                                   skb_tail_pointer(skb),
268                                   RTL8187_MAX_RX, rtl8187_rx_cb, skb);
269                 info = (struct rtl8187_rx_info *)skb->cb;
270                 info->urb = entry;
271                 info->dev = dev;
272                 skb_queue_tail(&priv->rx_queue, skb);
273                 usb_submit_urb(entry, GFP_KERNEL);
274         }
275
276         return 0;
277 }
278
279 static int rtl8187_init_hw(struct ieee80211_hw *dev)
280 {
281         struct rtl8187_priv *priv = dev->priv;
282         u8 reg;
283         int i;
284
285         /* reset */
286         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
287         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
288         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
289         rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
290         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
291         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
292         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
293
294         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
295
296         msleep(200);
297         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
298         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
299         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
300         msleep(200);
301
302         reg = rtl818x_ioread8(priv, &priv->map->CMD);
303         reg &= (1 << 1);
304         reg |= RTL818X_CMD_RESET;
305         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
306
307         i = 10;
308         do {
309                 msleep(2);
310                 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
311                       RTL818X_CMD_RESET))
312                         break;
313         } while (--i);
314
315         if (!i) {
316                 printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
317                 return -ETIMEDOUT;
318         }
319
320         /* reload registers from eeprom */
321         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
322
323         i = 10;
324         do {
325                 msleep(4);
326                 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
327                       RTL818X_EEPROM_CMD_CONFIG))
328                         break;
329         } while (--i);
330
331         if (!i) {
332                 printk(KERN_ERR "%s: eeprom reset timeout!\n",
333                        wiphy_name(dev->wiphy));
334                 return -ETIMEDOUT;
335         }
336
337         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
338         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
339         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
340         rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
341         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
342         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
343         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
344
345         /* setup card */
346         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
347         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
348
349         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
350         rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
351         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
352
353         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
354
355         rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
356         reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
357         reg &= 0x3F;
358         reg |= 0x80;
359         rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
360
361         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
362
363         rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
364         rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
365         rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
366
367         // TODO: set RESP_RATE and BRSR properly
368         rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
369         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
370
371         /* host_usb_init */
372         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
373         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
374         reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
375         rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
376         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
377         rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
378         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
379         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
380         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
381         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
382         msleep(100);
383
384         rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
385         rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
386         rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
387         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
388         rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
389         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
390         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
391         msleep(100);
392
393         priv->rf_init(dev);
394
395         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
396         reg = rtl818x_ioread16(priv, &priv->map->PGSELECT) & 0xfffe;
397         rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg | 0x1);
398         rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
399         rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
400         rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
401         rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg);
402
403         return 0;
404 }
405
406 static void rtl8187_set_channel(struct ieee80211_hw *dev, int channel)
407 {
408         u32 reg;
409         struct rtl8187_priv *priv = dev->priv;
410
411         reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
412         /* Enable TX loopback on MAC level to avoid TX during channel
413          * changes, as this has be seen to causes problems and the
414          * card will stop work until next reset
415          */
416         rtl818x_iowrite32(priv, &priv->map->TX_CONF,
417                           reg | RTL818X_TX_CONF_LOOPBACK_MAC);
418         msleep(10);
419         rtl8225_rf_set_channel(dev, channel);
420         msleep(10);
421         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
422 }
423
424 static int rtl8187_start(struct ieee80211_hw *dev)
425 {
426         struct rtl8187_priv *priv = dev->priv;
427         u32 reg;
428         int ret;
429
430         ret = rtl8187_init_hw(dev);
431         if (ret)
432                 return ret;
433
434         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
435
436         rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
437         rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
438
439         rtl8187_init_urbs(dev);
440
441         reg = RTL818X_RX_CONF_ONLYERLPKT |
442               RTL818X_RX_CONF_RX_AUTORESETPHY |
443               RTL818X_RX_CONF_BSSID |
444               RTL818X_RX_CONF_MGMT |
445               RTL818X_RX_CONF_DATA |
446               (7 << 13 /* RX FIFO threshold NONE */) |
447               (7 << 10 /* MAX RX DMA */) |
448               RTL818X_RX_CONF_BROADCAST |
449               RTL818X_RX_CONF_NICMAC;
450
451         priv->rx_conf = reg;
452         rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
453
454         reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
455         reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
456         reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
457         rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
458
459         reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
460         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
461         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
462         reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
463         rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
464
465         reg  = RTL818X_TX_CONF_CW_MIN |
466                (7 << 21 /* MAX TX DMA */) |
467                RTL818X_TX_CONF_NO_ICV;
468         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
469
470         reg = rtl818x_ioread8(priv, &priv->map->CMD);
471         reg |= RTL818X_CMD_TX_ENABLE;
472         reg |= RTL818X_CMD_RX_ENABLE;
473         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
474
475         return 0;
476 }
477
478 static void rtl8187_stop(struct ieee80211_hw *dev)
479 {
480         struct rtl8187_priv *priv = dev->priv;
481         struct rtl8187_rx_info *info;
482         struct sk_buff *skb;
483         u32 reg;
484
485         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
486
487         reg = rtl818x_ioread8(priv, &priv->map->CMD);
488         reg &= ~RTL818X_CMD_TX_ENABLE;
489         reg &= ~RTL818X_CMD_RX_ENABLE;
490         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
491
492         rtl8225_rf_stop(dev);
493
494         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
495         reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
496         rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
497         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
498
499         while ((skb = skb_dequeue(&priv->rx_queue))) {
500                 info = (struct rtl8187_rx_info *)skb->cb;
501                 usb_kill_urb(info->urb);
502                 kfree_skb(skb);
503         }
504         return;
505 }
506
507 static int rtl8187_add_interface(struct ieee80211_hw *dev,
508                                  struct ieee80211_if_init_conf *conf)
509 {
510         struct rtl8187_priv *priv = dev->priv;
511         int i;
512
513         if (priv->mode != IEEE80211_IF_TYPE_MNTR)
514                 return -EOPNOTSUPP;
515
516         switch (conf->type) {
517         case IEEE80211_IF_TYPE_STA:
518                 priv->mode = conf->type;
519                 break;
520         default:
521                 return -EOPNOTSUPP;
522         }
523
524         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
525         for (i = 0; i < ETH_ALEN; i++)
526                 rtl818x_iowrite8(priv, &priv->map->MAC[i],
527                                  ((u8 *)conf->mac_addr)[i]);
528         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
529
530         return 0;
531 }
532
533 static void rtl8187_remove_interface(struct ieee80211_hw *dev,
534                                      struct ieee80211_if_init_conf *conf)
535 {
536         struct rtl8187_priv *priv = dev->priv;
537         priv->mode = IEEE80211_IF_TYPE_MNTR;
538 }
539
540 static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
541 {
542         struct rtl8187_priv *priv = dev->priv;
543         rtl8187_set_channel(dev, conf->channel);
544
545         rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
546
547         if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
548                 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
549                 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
550                 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
551                 rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
552         } else {
553                 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
554                 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
555                 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
556                 rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
557         }
558
559         rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
560         rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
561         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
562         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
563         return 0;
564 }
565
566 static int rtl8187_config_interface(struct ieee80211_hw *dev, int if_id,
567                                     struct ieee80211_if_conf *conf)
568 {
569         struct rtl8187_priv *priv = dev->priv;
570         int i;
571
572         priv->if_id = if_id;
573
574         for (i = 0; i < ETH_ALEN; i++)
575                 rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
576
577         if (is_valid_ether_addr(conf->bssid))
578                 rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_INFRA);
579         else
580                 rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_NO_LINK);
581
582         return 0;
583 }
584
585 static void rtl8187_configure_filter(struct ieee80211_hw *dev,
586                                      unsigned int changed_flags,
587                                      unsigned int *total_flags,
588                                      int mc_count, struct dev_addr_list *mclist)
589 {
590         struct rtl8187_priv *priv = dev->priv;
591
592         if (changed_flags & FIF_FCSFAIL)
593                 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
594         if (changed_flags & FIF_CONTROL)
595                 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
596         if (changed_flags & FIF_OTHER_BSS)
597                 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
598         if (*total_flags & FIF_ALLMULTI || mc_count > 0)
599                 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
600         else
601                 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
602
603         *total_flags = 0;
604
605         if (priv->rx_conf & RTL818X_RX_CONF_FCS)
606                 *total_flags |= FIF_FCSFAIL;
607         if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
608                 *total_flags |= FIF_CONTROL;
609         if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
610                 *total_flags |= FIF_OTHER_BSS;
611         if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
612                 *total_flags |= FIF_ALLMULTI;
613
614         rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
615 }
616
617 static const struct ieee80211_ops rtl8187_ops = {
618         .tx                     = rtl8187_tx,
619         .start                  = rtl8187_start,
620         .stop                   = rtl8187_stop,
621         .add_interface          = rtl8187_add_interface,
622         .remove_interface       = rtl8187_remove_interface,
623         .config                 = rtl8187_config,
624         .config_interface       = rtl8187_config_interface,
625         .configure_filter       = rtl8187_configure_filter,
626 };
627
628 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
629 {
630         struct ieee80211_hw *dev = eeprom->data;
631         struct rtl8187_priv *priv = dev->priv;
632         u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
633
634         eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
635         eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
636         eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
637         eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
638 }
639
640 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
641 {
642         struct ieee80211_hw *dev = eeprom->data;
643         struct rtl8187_priv *priv = dev->priv;
644         u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
645
646         if (eeprom->reg_data_in)
647                 reg |= RTL818X_EEPROM_CMD_WRITE;
648         if (eeprom->reg_data_out)
649                 reg |= RTL818X_EEPROM_CMD_READ;
650         if (eeprom->reg_data_clock)
651                 reg |= RTL818X_EEPROM_CMD_CK;
652         if (eeprom->reg_chip_select)
653                 reg |= RTL818X_EEPROM_CMD_CS;
654
655         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
656         udelay(10);
657 }
658
659 static int __devinit rtl8187_probe(struct usb_interface *intf,
660                                    const struct usb_device_id *id)
661 {
662         struct usb_device *udev = interface_to_usbdev(intf);
663         struct ieee80211_hw *dev;
664         struct rtl8187_priv *priv;
665         struct eeprom_93cx6 eeprom;
666         struct ieee80211_channel *channel;
667         u16 txpwr, reg;
668         int err, i;
669         DECLARE_MAC_BUF(mac);
670
671         dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
672         if (!dev) {
673                 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
674                 return -ENOMEM;
675         }
676
677         priv = dev->priv;
678
679         SET_IEEE80211_DEV(dev, &intf->dev);
680         usb_set_intfdata(intf, dev);
681         priv->udev = udev;
682
683         usb_get_dev(udev);
684
685         skb_queue_head_init(&priv->rx_queue);
686         memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
687         memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
688         priv->map = (struct rtl818x_csr *)0xFF00;
689         priv->modes[0].mode = MODE_IEEE80211G;
690         priv->modes[0].num_rates = ARRAY_SIZE(rtl818x_rates);
691         priv->modes[0].rates = priv->rates;
692         priv->modes[0].num_channels = ARRAY_SIZE(rtl818x_channels);
693         priv->modes[0].channels = priv->channels;
694         priv->modes[1].mode = MODE_IEEE80211B;
695         priv->modes[1].num_rates = 4;
696         priv->modes[1].rates = priv->rates;
697         priv->modes[1].num_channels = ARRAY_SIZE(rtl818x_channels);
698         priv->modes[1].channels = priv->channels;
699         priv->mode = IEEE80211_IF_TYPE_MNTR;
700         dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
701                      IEEE80211_HW_RX_INCLUDES_FCS;
702         dev->extra_tx_headroom = sizeof(struct rtl8187_tx_hdr);
703         dev->queues = 1;
704         dev->max_rssi = 65;
705         dev->max_signal = 64;
706
707         for (i = 0; i < 2; i++)
708                 if ((err = ieee80211_register_hwmode(dev, &priv->modes[i])))
709                         goto err_free_dev;
710
711         eeprom.data = dev;
712         eeprom.register_read = rtl8187_eeprom_register_read;
713         eeprom.register_write = rtl8187_eeprom_register_write;
714         if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
715                 eeprom.width = PCI_EEPROM_WIDTH_93C66;
716         else
717                 eeprom.width = PCI_EEPROM_WIDTH_93C46;
718
719         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
720         udelay(10);
721
722         eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
723                                (__le16 __force *)dev->wiphy->perm_addr, 3);
724         if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
725                 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
726                        "generated MAC address\n");
727                 random_ether_addr(dev->wiphy->perm_addr);
728         }
729
730         channel = priv->channels;
731         for (i = 0; i < 3; i++) {
732                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
733                                   &txpwr);
734                 (*channel++).val = txpwr & 0xFF;
735                 (*channel++).val = txpwr >> 8;
736         }
737         for (i = 0; i < 2; i++) {
738                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
739                                   &txpwr);
740                 (*channel++).val = txpwr & 0xFF;
741                 (*channel++).val = txpwr >> 8;
742         }
743         for (i = 0; i < 2; i++) {
744                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6 + i,
745                                   &txpwr);
746                 (*channel++).val = txpwr & 0xFF;
747                 (*channel++).val = txpwr >> 8;
748         }
749
750         eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
751                           &priv->txpwr_base);
752
753         reg = rtl818x_ioread16(priv, &priv->map->PGSELECT) & ~1;
754         rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg | 1);
755         /* 0 means asic B-cut, we should use SW 3 wire
756          * bit-by-bit banging for radio. 1 means we can use
757          * USB specific request to write radio registers */
758         priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
759         rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg);
760         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
761
762         rtl8225_write(dev, 0, 0x1B7);
763
764         if (rtl8225_read(dev, 8) != 0x588 || rtl8225_read(dev, 9) != 0x700)
765                 priv->rf_init = rtl8225_rf_init;
766         else
767                 priv->rf_init = rtl8225z2_rf_init;
768
769         rtl8225_write(dev, 0, 0x0B7);
770
771         err = ieee80211_register_hw(dev);
772         if (err) {
773                 printk(KERN_ERR "rtl8187: Cannot register device\n");
774                 goto err_free_dev;
775         }
776
777         printk(KERN_INFO "%s: hwaddr %s, rtl8187 V%d + %s\n",
778                wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
779                priv->asic_rev, priv->rf_init == rtl8225_rf_init ?
780                "rtl8225" : "rtl8225z2");
781
782         return 0;
783
784  err_free_dev:
785         ieee80211_free_hw(dev);
786         usb_set_intfdata(intf, NULL);
787         usb_put_dev(udev);
788         return err;
789 }
790
791 static void __devexit rtl8187_disconnect(struct usb_interface *intf)
792 {
793         struct ieee80211_hw *dev = usb_get_intfdata(intf);
794         struct rtl8187_priv *priv;
795
796         if (!dev)
797                 return;
798
799         ieee80211_unregister_hw(dev);
800
801         priv = dev->priv;
802         usb_put_dev(interface_to_usbdev(intf));
803         ieee80211_free_hw(dev);
804 }
805
806 static struct usb_driver rtl8187_driver = {
807         .name           = KBUILD_MODNAME,
808         .id_table       = rtl8187_table,
809         .probe          = rtl8187_probe,
810         .disconnect     = rtl8187_disconnect,
811 };
812
813 static int __init rtl8187_init(void)
814 {
815         return usb_register(&rtl8187_driver);
816 }
817
818 static void __exit rtl8187_exit(void)
819 {
820         usb_deregister(&rtl8187_driver);
821 }
822
823 module_init(rtl8187_init);
824 module_exit(rtl8187_exit);