Fix build break in tsi108.c
[linux-2.6.git] / 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         u32 tmp;
135
136         urb = usb_alloc_urb(0, GFP_ATOMIC);
137         if (!urb) {
138                 kfree_skb(skb);
139                 return 0;
140         }
141
142         hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
143         tmp = skb->len - sizeof(*hdr);
144         tmp |= RTL8187_TX_FLAG_NO_ENCRYPT;
145         tmp |= control->rts_cts_rate << 19;
146         tmp |= control->tx_rate << 24;
147         if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb))
148                 tmp |= RTL8187_TX_FLAG_MORE_FRAG;
149         if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
150                 tmp |= RTL8187_TX_FLAG_RTS;
151                 hdr->rts_duration =
152                         ieee80211_rts_duration(dev, priv->if_id, skb->len, control);
153         }
154         if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
155                 tmp |= RTL8187_TX_FLAG_CTS;
156         hdr->flags = cpu_to_le32(tmp);
157         hdr->len = 0;
158         tmp = control->retry_limit << 8;
159         hdr->retry = cpu_to_le32(tmp);
160
161         info = (struct rtl8187_tx_info *)skb->cb;
162         info->control = kmemdup(control, sizeof(*control), GFP_ATOMIC);
163         info->urb = urb;
164         info->dev = dev;
165         usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, 2),
166                           hdr, skb->len, rtl8187_tx_cb, skb);
167         usb_submit_urb(urb, GFP_ATOMIC);
168
169         return 0;
170 }
171
172 static void rtl8187_rx_cb(struct urb *urb)
173 {
174         struct sk_buff *skb = (struct sk_buff *)urb->context;
175         struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
176         struct ieee80211_hw *dev = info->dev;
177         struct rtl8187_priv *priv = dev->priv;
178         struct rtl8187_rx_hdr *hdr;
179         struct ieee80211_rx_status rx_status = { 0 };
180         int rate, signal;
181         u32 flags;
182
183         spin_lock(&priv->rx_queue.lock);
184         if (skb->next)
185                 __skb_unlink(skb, &priv->rx_queue);
186         else {
187                 spin_unlock(&priv->rx_queue.lock);
188                 return;
189         }
190         spin_unlock(&priv->rx_queue.lock);
191
192         if (unlikely(urb->status)) {
193                 usb_free_urb(urb);
194                 dev_kfree_skb_irq(skb);
195                 return;
196         }
197
198         skb_put(skb, urb->actual_length);
199         hdr = (struct rtl8187_rx_hdr *)(skb_tail_pointer(skb) - sizeof(*hdr));
200         flags = le32_to_cpu(hdr->flags);
201         skb_trim(skb, flags & 0x0FFF);
202
203         signal = hdr->agc >> 1;
204         rate = (flags >> 20) & 0xF;
205         if (rate > 3) { /* OFDM rate */
206                 if (signal > 90)
207                         signal = 90;
208                 else if (signal < 25)
209                         signal = 25;
210                 signal = 90 - signal;
211         } else {        /* CCK rate */
212                 if (signal > 95)
213                         signal = 95;
214                 else if (signal < 30)
215                         signal = 30;
216                 signal = 95 - signal;
217         }
218
219         rx_status.antenna = (hdr->signal >> 7) & 1;
220         rx_status.signal = 64 - min(hdr->noise, (u8)64);
221         rx_status.ssi = signal;
222         rx_status.rate = rate;
223         rx_status.freq = dev->conf.freq;
224         rx_status.channel = dev->conf.channel;
225         rx_status.phymode = dev->conf.phymode;
226         rx_status.mactime = le64_to_cpu(hdr->mac_time);
227         if (flags & (1 << 13))
228                 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
229         ieee80211_rx_irqsafe(dev, skb, &rx_status);
230
231         skb = dev_alloc_skb(RTL8187_MAX_RX);
232         if (unlikely(!skb)) {
233                 usb_free_urb(urb);
234                 /* TODO check rx queue length and refill *somewhere* */
235                 return;
236         }
237
238         info = (struct rtl8187_rx_info *)skb->cb;
239         info->urb = urb;
240         info->dev = dev;
241         urb->transfer_buffer = skb_tail_pointer(skb);
242         urb->context = skb;
243         skb_queue_tail(&priv->rx_queue, skb);
244
245         usb_submit_urb(urb, GFP_ATOMIC);
246 }
247
248 static int rtl8187_init_urbs(struct ieee80211_hw *dev)
249 {
250         struct rtl8187_priv *priv = dev->priv;
251         struct urb *entry;
252         struct sk_buff *skb;
253         struct rtl8187_rx_info *info;
254
255         while (skb_queue_len(&priv->rx_queue) < 8) {
256                 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
257                 if (!skb)
258                         break;
259                 entry = usb_alloc_urb(0, GFP_KERNEL);
260                 if (!entry) {
261                         kfree_skb(skb);
262                         break;
263                 }
264                 usb_fill_bulk_urb(entry, priv->udev,
265                                   usb_rcvbulkpipe(priv->udev, 1),
266                                   skb_tail_pointer(skb),
267                                   RTL8187_MAX_RX, rtl8187_rx_cb, skb);
268                 info = (struct rtl8187_rx_info *)skb->cb;
269                 info->urb = entry;
270                 info->dev = dev;
271                 skb_queue_tail(&priv->rx_queue, skb);
272                 usb_submit_urb(entry, GFP_KERNEL);
273         }
274
275         return 0;
276 }
277
278 static int rtl8187_init_hw(struct ieee80211_hw *dev)
279 {
280         struct rtl8187_priv *priv = dev->priv;
281         u8 reg;
282         int i;
283
284         /* reset */
285         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
286         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
287         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
288         rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
289         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
290         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
291         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
292
293         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
294
295         msleep(200);
296         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
297         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
298         rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
299         msleep(200);
300
301         reg = rtl818x_ioread8(priv, &priv->map->CMD);
302         reg &= (1 << 1);
303         reg |= RTL818X_CMD_RESET;
304         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
305
306         i = 10;
307         do {
308                 msleep(2);
309                 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
310                       RTL818X_CMD_RESET))
311                         break;
312         } while (--i);
313
314         if (!i) {
315                 printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
316                 return -ETIMEDOUT;
317         }
318
319         /* reload registers from eeprom */
320         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
321
322         i = 10;
323         do {
324                 msleep(4);
325                 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
326                       RTL818X_EEPROM_CMD_CONFIG))
327                         break;
328         } while (--i);
329
330         if (!i) {
331                 printk(KERN_ERR "%s: eeprom reset timeout!\n",
332                        wiphy_name(dev->wiphy));
333                 return -ETIMEDOUT;
334         }
335
336         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
337         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
338         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
339         rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
340         rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
341         rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
342         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
343
344         /* setup card */
345         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
346         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
347
348         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
349         rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
350         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
351
352         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
353
354         rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
355         reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
356         reg &= 0x3F;
357         reg |= 0x80;
358         rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
359
360         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
361
362         rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
363         rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
364         rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
365
366         // TODO: set RESP_RATE and BRSR properly
367         rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
368         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
369
370         /* host_usb_init */
371         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
372         rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
373         reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
374         rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
375         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
376         rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
377         rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
378         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
379         rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
380         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
381         msleep(100);
382
383         rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
384         rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
385         rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
386         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
387         rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
388         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
389         rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
390         msleep(100);
391
392         priv->rf_init(dev);
393
394         rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
395         reg = rtl818x_ioread16(priv, &priv->map->PGSELECT) & 0xfffe;
396         rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg | 0x1);
397         rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
398         rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
399         rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
400         rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg);
401
402         return 0;
403 }
404
405 static void rtl8187_set_channel(struct ieee80211_hw *dev, int channel)
406 {
407         u32 reg;
408         struct rtl8187_priv *priv = dev->priv;
409
410         reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
411         /* Enable TX loopback on MAC level to avoid TX during channel
412          * changes, as this has be seen to causes problems and the
413          * card will stop work until next reset
414          */
415         rtl818x_iowrite32(priv, &priv->map->TX_CONF,
416                           reg | RTL818X_TX_CONF_LOOPBACK_MAC);
417         msleep(10);
418         rtl8225_rf_set_channel(dev, channel);
419         msleep(10);
420         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
421 }
422
423 static int rtl8187_start(struct ieee80211_hw *dev)
424 {
425         struct rtl8187_priv *priv = dev->priv;
426         u32 reg;
427         int ret;
428
429         ret = rtl8187_init_hw(dev);
430         if (ret)
431                 return ret;
432
433         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
434
435         rtl8187_init_urbs(dev);
436
437         reg = RTL818X_RX_CONF_ONLYERLPKT |
438               RTL818X_RX_CONF_RX_AUTORESETPHY |
439               RTL818X_RX_CONF_BSSID |
440               RTL818X_RX_CONF_MGMT |
441               RTL818X_RX_CONF_DATA |
442               (7 << 13 /* RX FIFO threshold NONE */) |
443               (7 << 10 /* MAX RX DMA */) |
444               RTL818X_RX_CONF_BROADCAST |
445               RTL818X_RX_CONF_NICMAC;
446
447         priv->rx_conf = reg;
448         rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
449
450         reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
451         reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
452         reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
453         rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
454
455         reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
456         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
457         reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
458         reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
459         rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
460
461         reg  = RTL818X_TX_CONF_CW_MIN |
462                (7 << 21 /* MAX TX DMA */) |
463                RTL818X_TX_CONF_NO_ICV;
464         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
465
466         reg = rtl818x_ioread8(priv, &priv->map->CMD);
467         reg |= RTL818X_CMD_TX_ENABLE;
468         reg |= RTL818X_CMD_RX_ENABLE;
469         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
470
471         return 0;
472 }
473
474 static void rtl8187_stop(struct ieee80211_hw *dev)
475 {
476         struct rtl8187_priv *priv = dev->priv;
477         struct rtl8187_rx_info *info;
478         struct sk_buff *skb;
479         u32 reg;
480
481         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
482
483         reg = rtl818x_ioread8(priv, &priv->map->CMD);
484         reg &= ~RTL818X_CMD_TX_ENABLE;
485         reg &= ~RTL818X_CMD_RX_ENABLE;
486         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
487
488         rtl8225_rf_stop(dev);
489
490         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
491         reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
492         rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
493         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
494
495         while ((skb = skb_dequeue(&priv->rx_queue))) {
496                 info = (struct rtl8187_rx_info *)skb->cb;
497                 usb_kill_urb(info->urb);
498                 kfree_skb(skb);
499         }
500         return;
501 }
502
503 static int rtl8187_add_interface(struct ieee80211_hw *dev,
504                                  struct ieee80211_if_init_conf *conf)
505 {
506         struct rtl8187_priv *priv = dev->priv;
507         int i;
508
509         if (priv->mode != IEEE80211_IF_TYPE_MNTR)
510                 return -EOPNOTSUPP;
511
512         switch (conf->type) {
513         case IEEE80211_IF_TYPE_STA:
514                 priv->mode = conf->type;
515                 break;
516         default:
517                 return -EOPNOTSUPP;
518         }
519
520         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
521         for (i = 0; i < ETH_ALEN; i++)
522                 rtl818x_iowrite8(priv, &priv->map->MAC[i],
523                                  ((u8 *)conf->mac_addr)[i]);
524         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
525
526         return 0;
527 }
528
529 static void rtl8187_remove_interface(struct ieee80211_hw *dev,
530                                      struct ieee80211_if_init_conf *conf)
531 {
532         struct rtl8187_priv *priv = dev->priv;
533         priv->mode = IEEE80211_IF_TYPE_MNTR;
534 }
535
536 static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
537 {
538         struct rtl8187_priv *priv = dev->priv;
539         rtl8187_set_channel(dev, conf->channel);
540
541         rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
542
543         if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
544                 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
545                 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
546                 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
547                 rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
548         } else {
549                 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
550                 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
551                 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
552                 rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
553         }
554
555         rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
556         rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
557         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
558         rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
559         return 0;
560 }
561
562 static int rtl8187_config_interface(struct ieee80211_hw *dev, int if_id,
563                                     struct ieee80211_if_conf *conf)
564 {
565         struct rtl8187_priv *priv = dev->priv;
566         int i;
567
568         priv->if_id = if_id;
569
570         for (i = 0; i < ETH_ALEN; i++)
571                 rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
572
573         if (is_valid_ether_addr(conf->bssid))
574                 rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_INFRA);
575         else
576                 rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_NO_LINK);
577
578         return 0;
579 }
580
581 static void rtl8187_configure_filter(struct ieee80211_hw *dev,
582                                      unsigned int changed_flags,
583                                      unsigned int *total_flags,
584                                      int mc_count, struct dev_addr_list *mc_list)
585 {
586         struct rtl8187_priv *priv = dev->priv;
587
588         *total_flags = 0;
589
590         if (changed_flags & FIF_PROMISC_IN_BSS)
591                 priv->rx_conf ^= RTL818X_RX_CONF_NICMAC;
592         if (changed_flags & FIF_ALLMULTI)
593                 priv->rx_conf ^= RTL818X_RX_CONF_MULTICAST;
594         if (changed_flags & FIF_FCSFAIL)
595                 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
596         if (changed_flags & FIF_CONTROL)
597                 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
598         if (changed_flags & FIF_OTHER_BSS)
599                 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
600
601         if (mc_count > 0)
602                 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
603
604         if (priv->rx_conf & RTL818X_RX_CONF_NICMAC)
605                 *total_flags |= FIF_PROMISC_IN_BSS;
606         if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
607                 *total_flags |= FIF_ALLMULTI;
608         if (priv->rx_conf & RTL818X_RX_CONF_FCS)
609                 *total_flags |= FIF_FCSFAIL;
610         if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
611                 *total_flags |= FIF_CONTROL;
612         if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
613                 *total_flags |= FIF_OTHER_BSS;
614
615         rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
616 }
617
618 static const struct ieee80211_ops rtl8187_ops = {
619         .tx                     = rtl8187_tx,
620         .start                  = rtl8187_start,
621         .stop                   = rtl8187_stop,
622         .add_interface          = rtl8187_add_interface,
623         .remove_interface       = rtl8187_remove_interface,
624         .config                 = rtl8187_config,
625         .config_interface       = rtl8187_config_interface,
626         .configure_filter       = rtl8187_configure_filter,
627 };
628
629 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
630 {
631         struct ieee80211_hw *dev = eeprom->data;
632         struct rtl8187_priv *priv = dev->priv;
633         u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
634
635         eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
636         eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
637         eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
638         eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
639 }
640
641 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
642 {
643         struct ieee80211_hw *dev = eeprom->data;
644         struct rtl8187_priv *priv = dev->priv;
645         u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
646
647         if (eeprom->reg_data_in)
648                 reg |= RTL818X_EEPROM_CMD_WRITE;
649         if (eeprom->reg_data_out)
650                 reg |= RTL818X_EEPROM_CMD_READ;
651         if (eeprom->reg_data_clock)
652                 reg |= RTL818X_EEPROM_CMD_CK;
653         if (eeprom->reg_chip_select)
654                 reg |= RTL818X_EEPROM_CMD_CS;
655
656         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
657         udelay(10);
658 }
659
660 static int __devinit rtl8187_probe(struct usb_interface *intf,
661                                    const struct usb_device_id *id)
662 {
663         struct usb_device *udev = interface_to_usbdev(intf);
664         struct ieee80211_hw *dev;
665         struct rtl8187_priv *priv;
666         struct eeprom_93cx6 eeprom;
667         struct ieee80211_channel *channel;
668         u16 txpwr, reg;
669         int err, i;
670         DECLARE_MAC_BUF(mac);
671
672         dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
673         if (!dev) {
674                 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
675                 return -ENOMEM;
676         }
677
678         priv = dev->priv;
679
680         SET_IEEE80211_DEV(dev, &intf->dev);
681         usb_set_intfdata(intf, dev);
682         priv->udev = udev;
683
684         usb_get_dev(udev);
685
686         skb_queue_head_init(&priv->rx_queue);
687         memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
688         memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
689         priv->map = (struct rtl818x_csr *)0xFF00;
690         priv->modes[0].mode = MODE_IEEE80211G;
691         priv->modes[0].num_rates = ARRAY_SIZE(rtl818x_rates);
692         priv->modes[0].rates = priv->rates;
693         priv->modes[0].num_channels = ARRAY_SIZE(rtl818x_channels);
694         priv->modes[0].channels = priv->channels;
695         priv->modes[1].mode = MODE_IEEE80211B;
696         priv->modes[1].num_rates = 4;
697         priv->modes[1].rates = priv->rates;
698         priv->modes[1].num_channels = ARRAY_SIZE(rtl818x_channels);
699         priv->modes[1].channels = priv->channels;
700         priv->mode = IEEE80211_IF_TYPE_MNTR;
701         dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
702                      IEEE80211_HW_RX_INCLUDES_FCS;
703         dev->extra_tx_headroom = sizeof(struct rtl8187_tx_hdr);
704         dev->queues = 1;
705         dev->max_rssi = 65;
706         dev->max_signal = 64;
707
708         for (i = 0; i < 2; i++)
709                 if ((err = ieee80211_register_hwmode(dev, &priv->modes[i])))
710                         goto err_free_dev;
711
712         eeprom.data = dev;
713         eeprom.register_read = rtl8187_eeprom_register_read;
714         eeprom.register_write = rtl8187_eeprom_register_write;
715         if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
716                 eeprom.width = PCI_EEPROM_WIDTH_93C66;
717         else
718                 eeprom.width = PCI_EEPROM_WIDTH_93C46;
719
720         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
721         udelay(10);
722
723         eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
724                                (__le16 __force *)dev->wiphy->perm_addr, 3);
725         if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
726                 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
727                        "generated MAC address\n");
728                 random_ether_addr(dev->wiphy->perm_addr);
729         }
730
731         channel = priv->channels;
732         for (i = 0; i < 3; i++) {
733                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
734                                   &txpwr);
735                 (*channel++).val = txpwr & 0xFF;
736                 (*channel++).val = txpwr >> 8;
737         }
738         for (i = 0; i < 2; i++) {
739                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
740                                   &txpwr);
741                 (*channel++).val = txpwr & 0xFF;
742                 (*channel++).val = txpwr >> 8;
743         }
744         for (i = 0; i < 2; i++) {
745                 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6 + i,
746                                   &txpwr);
747                 (*channel++).val = txpwr & 0xFF;
748                 (*channel++).val = txpwr >> 8;
749         }
750
751         eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
752                           &priv->txpwr_base);
753
754         reg = rtl818x_ioread16(priv, &priv->map->PGSELECT) & ~1;
755         rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg | 1);
756         /* 0 means asic B-cut, we should use SW 3 wire
757          * bit-by-bit banging for radio. 1 means we can use
758          * USB specific request to write radio registers */
759         priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
760         rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg);
761         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
762
763         rtl8225_write(dev, 0, 0x1B7);
764
765         if (rtl8225_read(dev, 8) != 0x588 || rtl8225_read(dev, 9) != 0x700)
766                 priv->rf_init = rtl8225_rf_init;
767         else
768                 priv->rf_init = rtl8225z2_rf_init;
769
770         rtl8225_write(dev, 0, 0x0B7);
771
772         err = ieee80211_register_hw(dev);
773         if (err) {
774                 printk(KERN_ERR "rtl8187: Cannot register device\n");
775                 goto err_free_dev;
776         }
777
778         printk(KERN_INFO "%s: hwaddr %s, rtl8187 V%d + %s\n",
779                wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
780                priv->asic_rev, priv->rf_init == rtl8225_rf_init ?
781                "rtl8225" : "rtl8225z2");
782
783         return 0;
784
785  err_free_dev:
786         ieee80211_free_hw(dev);
787         usb_set_intfdata(intf, NULL);
788         usb_put_dev(udev);
789         return err;
790 }
791
792 static void __devexit rtl8187_disconnect(struct usb_interface *intf)
793 {
794         struct ieee80211_hw *dev = usb_get_intfdata(intf);
795         struct rtl8187_priv *priv;
796
797         if (!dev)
798                 return;
799
800         ieee80211_unregister_hw(dev);
801
802         priv = dev->priv;
803         usb_put_dev(interface_to_usbdev(intf));
804         ieee80211_free_hw(dev);
805 }
806
807 static struct usb_driver rtl8187_driver = {
808         .name           = KBUILD_MODNAME,
809         .id_table       = rtl8187_table,
810         .probe          = rtl8187_probe,
811         .disconnect     = rtl8187_disconnect,
812 };
813
814 static int __init rtl8187_init(void)
815 {
816         return usb_register(&rtl8187_driver);
817 }
818
819 static void __exit rtl8187_exit(void)
820 {
821         usb_deregister(&rtl8187_driver);
822 }
823
824 module_init(rtl8187_init);
825 module_exit(rtl8187_exit);