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Staging: netwave: delete the driver
[linux/fpc-iii.git] / drivers / net / wireless / rtl818x / rtl8187_dev.c
blob1d30792973f5ef78dfaad45ea439f23c159618c2
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 * The driver was extended to the RTL8187B in 2008 by:
11 * Herton Ronaldo Krzesinski <herton@mandriva.com.br>
12 * Hin-Tak Leung <htl10@users.sourceforge.net>
13 * Larry Finger <Larry.Finger@lwfinger.net>
14 *
15 * Magic delays and register offsets below are taken from the original
16 * r8187 driver sources. Thanks to Realtek for their support!
17 *
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License version 2 as
20 * published by the Free Software Foundation.
21 */
22
23 #include <linux/init.h>
24 #include <linux/usb.h>
25 #include <linux/slab.h>
26 #include <linux/delay.h>
27 #include <linux/etherdevice.h>
28 #include <linux/eeprom_93cx6.h>
29 #include <net/mac80211.h>
30
31 #include "rtl8187.h"
32 #include "rtl8187_rtl8225.h"
33 #ifdef CONFIG_RTL8187_LEDS
34 #include "rtl8187_leds.h"
35 #endif
36 #include "rtl8187_rfkill.h"
37
38 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
39 MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
40 MODULE_AUTHOR("Herton Ronaldo Krzesinski <herton@mandriva.com.br>");
41 MODULE_AUTHOR("Hin-Tak Leung <htl10@users.sourceforge.net>");
42 MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>");
43 MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
44 MODULE_LICENSE("GPL");
45
46 static struct usb_device_id rtl8187_table[] __devinitdata = {
47 /* Asus */
48 {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
49 /* Belkin */
50 {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B},
51 /* Realtek */
52 {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
53 {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
54 {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
55 {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B},
56 /* Surecom */
57 {USB_DEVICE(0x0769, 0x11F2), .driver_info = DEVICE_RTL8187},
58 /* Logitech */
59 {USB_DEVICE(0x0789, 0x010C), .driver_info = DEVICE_RTL8187},
60 /* Netgear */
61 {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
62 {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
63 {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B},
64 /* HP */
65 {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
66 /* Sitecom */
67 {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
68 {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
69 {USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B},
70 /* Sphairon Access Systems GmbH */
71 {USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187},
72 /* Dick Smith Electronics */
73 {USB_DEVICE(0x1371, 0x9401), .driver_info = DEVICE_RTL8187},
74 /* Abocom */
75 {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187},
76 /* Qcom */
77 {USB_DEVICE(0x18E8, 0x6232), .driver_info = DEVICE_RTL8187},
78 /* AirLive */
79 {USB_DEVICE(0x1b75, 0x8187), .driver_info = DEVICE_RTL8187},
80 /* Linksys */
81 {USB_DEVICE(0x1737, 0x0073), .driver_info = DEVICE_RTL8187B},
82 {}
83 };
84
85 MODULE_DEVICE_TABLE(usb, rtl8187_table);
86
87 static const struct ieee80211_rate rtl818x_rates[] = {
88 { .bitrate = 10, .hw_value = 0, },
89 { .bitrate = 20, .hw_value = 1, },
90 { .bitrate = 55, .hw_value = 2, },
91 { .bitrate = 110, .hw_value = 3, },
92 { .bitrate = 60, .hw_value = 4, },
93 { .bitrate = 90, .hw_value = 5, },
94 { .bitrate = 120, .hw_value = 6, },
95 { .bitrate = 180, .hw_value = 7, },
96 { .bitrate = 240, .hw_value = 8, },
97 { .bitrate = 360, .hw_value = 9, },
98 { .bitrate = 480, .hw_value = 10, },
99 { .bitrate = 540, .hw_value = 11, },
100 };
101
102 static const struct ieee80211_channel rtl818x_channels[] = {
103 { .center_freq = 2412 },
104 { .center_freq = 2417 },
105 { .center_freq = 2422 },
106 { .center_freq = 2427 },
107 { .center_freq = 2432 },
108 { .center_freq = 2437 },
109 { .center_freq = 2442 },
110 { .center_freq = 2447 },
111 { .center_freq = 2452 },
112 { .center_freq = 2457 },
113 { .center_freq = 2462 },
114 { .center_freq = 2467 },
115 { .center_freq = 2472 },
116 { .center_freq = 2484 },
117 };
118
119 static void rtl8187_iowrite_async_cb(struct urb *urb)
120 {
121 kfree(urb->context);
122 }
123
124 static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
125 void *data, u16 len)
126 {
127 struct usb_ctrlrequest *dr;
128 struct urb *urb;
129 struct rtl8187_async_write_data {
130 u8 data[4];
131 struct usb_ctrlrequest dr;
132 } *buf;
133 int rc;
134
135 buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
136 if (!buf)
137 return;
138
139 urb = usb_alloc_urb(0, GFP_ATOMIC);
140 if (!urb) {
141 kfree(buf);
142 return;
143 }
144
145 dr = &buf->dr;
146
147 dr->bRequestType = RTL8187_REQT_WRITE;
148 dr->bRequest = RTL8187_REQ_SET_REG;
149 dr->wValue = addr;
150 dr->wIndex = 0;
151 dr->wLength = cpu_to_le16(len);
152
153 memcpy(buf, data, len);
154
155 usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
156 (unsigned char *)dr, buf, len,
157 rtl8187_iowrite_async_cb, buf);
158 usb_anchor_urb(urb, &priv->anchored);
159 rc = usb_submit_urb(urb, GFP_ATOMIC);
160 if (rc < 0) {
161 kfree(buf);
162 usb_unanchor_urb(urb);
163 }
164 usb_free_urb(urb);
165 }
166
167 static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
168 __le32 *addr, u32 val)
169 {
170 __le32 buf = cpu_to_le32(val);
171
172 rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
173 &buf, sizeof(buf));
174 }
175
176 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
177 {
178 struct rtl8187_priv *priv = dev->priv;
179
180 data <<= 8;
181 data |= addr | 0x80;
182
183 rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
184 rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
185 rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
186 rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
187 }
188
189 static void rtl8187_tx_cb(struct urb *urb)
190 {
191 struct sk_buff *skb = (struct sk_buff *)urb->context;
192 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
193 struct ieee80211_hw *hw = info->rate_driver_data[0];
194 struct rtl8187_priv *priv = hw->priv;
195
196 skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
197 sizeof(struct rtl8187_tx_hdr));
198 ieee80211_tx_info_clear_status(info);
199
200 if (!(urb->status) && !(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
201 if (priv->is_rtl8187b) {
202 skb_queue_tail(&priv->b_tx_status.queue, skb);
203
204 /* queue is "full", discard last items */
205 while (skb_queue_len(&priv->b_tx_status.queue) > 5) {
206 struct sk_buff *old_skb;
207
208 dev_dbg(&priv->udev->dev,
209 "transmit status queue full\n");
210
211 old_skb = skb_dequeue(&priv->b_tx_status.queue);
212 ieee80211_tx_status_irqsafe(hw, old_skb);
213 }
214 return;
215 } else {
216 info->flags |= IEEE80211_TX_STAT_ACK;
217 }
218 }
219 if (priv->is_rtl8187b)
220 ieee80211_tx_status_irqsafe(hw, skb);
221 else {
222 /* Retry information for the RTI8187 is only available by
223 * reading a register in the device. We are in interrupt mode
224 * here, thus queue the skb and finish on a work queue. */
225 skb_queue_tail(&priv->b_tx_status.queue, skb);
226 ieee80211_queue_delayed_work(hw, &priv->work, 0);
227 }
228 }
229
230 static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
231 {
232 struct rtl8187_priv *priv = dev->priv;
233 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
234 unsigned int ep;
235 void *buf;
236 struct urb *urb;
237 __le16 rts_dur = 0;
238 u32 flags;
239 int rc;
240
241 urb = usb_alloc_urb(0, GFP_ATOMIC);
242 if (!urb) {
243 kfree_skb(skb);
244 return NETDEV_TX_OK;
245 }
246
247 flags = skb->len;
248 flags |= RTL818X_TX_DESC_FLAG_NO_ENC;
249
250 flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
251 if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
252 flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
253 if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
254 flags |= RTL818X_TX_DESC_FLAG_RTS;
255 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
256 rts_dur = ieee80211_rts_duration(dev, priv->vif,
257 skb->len, info);
258 } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
259 flags |= RTL818X_TX_DESC_FLAG_CTS;
260 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
261 }
262
263 if (!priv->is_rtl8187b) {
264 struct rtl8187_tx_hdr *hdr =
265 (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
266 hdr->flags = cpu_to_le32(flags);
267 hdr->len = 0;
268 hdr->rts_duration = rts_dur;
269 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
270 buf = hdr;
271
272 ep = 2;
273 } else {
274 /* fc needs to be calculated before skb_push() */
275 unsigned int epmap[4] = { 6, 7, 5, 4 };
276 struct ieee80211_hdr *tx_hdr =
277 (struct ieee80211_hdr *)(skb->data);
278 u16 fc = le16_to_cpu(tx_hdr->frame_control);
279
280 struct rtl8187b_tx_hdr *hdr =
281 (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
282 struct ieee80211_rate *txrate =
283 ieee80211_get_tx_rate(dev, info);
284 memset(hdr, 0, sizeof(*hdr));
285 hdr->flags = cpu_to_le32(flags);
286 hdr->rts_duration = rts_dur;
287 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
288 hdr->tx_duration =
289 ieee80211_generic_frame_duration(dev, priv->vif,
290 skb->len, txrate);
291 buf = hdr;
292
293 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
294 ep = 12;
295 else
296 ep = epmap[skb_get_queue_mapping(skb)];
297 }
298
299 info->rate_driver_data[0] = dev;
300 info->rate_driver_data[1] = urb;
301
302 usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
303 buf, skb->len, rtl8187_tx_cb, skb);
304 urb->transfer_flags |= URB_ZERO_PACKET;
305 usb_anchor_urb(urb, &priv->anchored);
306 rc = usb_submit_urb(urb, GFP_ATOMIC);
307 if (rc < 0) {
308 usb_unanchor_urb(urb);
309 kfree_skb(skb);
310 }
311 usb_free_urb(urb);
312
313 return NETDEV_TX_OK;
314 }
315
316 static void rtl8187_rx_cb(struct urb *urb)
317 {
318 struct sk_buff *skb = (struct sk_buff *)urb->context;
319 struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
320 struct ieee80211_hw *dev = info->dev;
321 struct rtl8187_priv *priv = dev->priv;
322 struct ieee80211_rx_status rx_status = { 0 };
323 int rate, signal;
324 u32 flags;
325 unsigned long f;
326
327 spin_lock_irqsave(&priv->rx_queue.lock, f);
328 __skb_unlink(skb, &priv->rx_queue);
329 spin_unlock_irqrestore(&priv->rx_queue.lock, f);
330 skb_put(skb, urb->actual_length);
331
332 if (unlikely(urb->status)) {
333 dev_kfree_skb_irq(skb);
334 return;
335 }
336
337 if (!priv->is_rtl8187b) {
338 struct rtl8187_rx_hdr *hdr =
339 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
340 flags = le32_to_cpu(hdr->flags);
341 /* As with the RTL8187B below, the AGC is used to calculate
342 * signal strength. In this case, the scaling
343 * constants are derived from the output of p54usb.
344 */
345 signal = -4 - ((27 * hdr->agc) >> 6);
346 rx_status.antenna = (hdr->signal >> 7) & 1;
347 rx_status.mactime = le64_to_cpu(hdr->mac_time);
348 } else {
349 struct rtl8187b_rx_hdr *hdr =
350 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
351 /* The Realtek datasheet for the RTL8187B shows that the RX
352 * header contains the following quantities: signal quality,
353 * RSSI, AGC, the received power in dB, and the measured SNR.
354 * In testing, none of these quantities show qualitative
355 * agreement with AP signal strength, except for the AGC,
356 * which is inversely proportional to the strength of the
357 * signal. In the following, the signal strength
358 * is derived from the AGC. The arbitrary scaling constants
359 * are chosen to make the results close to the values obtained
360 * for a BCM4312 using b43 as the driver. The noise is ignored
361 * for now.
362 */
363 flags = le32_to_cpu(hdr->flags);
364 signal = 14 - hdr->agc / 2;
365 rx_status.antenna = (hdr->rssi >> 7) & 1;
366 rx_status.mactime = le64_to_cpu(hdr->mac_time);
367 }
368
369 rx_status.signal = signal;
370 priv->signal = signal;
371 rate = (flags >> 20) & 0xF;
372 skb_trim(skb, flags & 0x0FFF);
373 rx_status.rate_idx = rate;
374 rx_status.freq = dev->conf.channel->center_freq;
375 rx_status.band = dev->conf.channel->band;
376 rx_status.flag |= RX_FLAG_TSFT;
377 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
378 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
379 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
380 ieee80211_rx_irqsafe(dev, skb);
381
382 skb = dev_alloc_skb(RTL8187_MAX_RX);
383 if (unlikely(!skb)) {
384 /* TODO check rx queue length and refill *somewhere* */
385 return;
386 }
387
388 info = (struct rtl8187_rx_info *)skb->cb;
389 info->urb = urb;
390 info->dev = dev;
391 urb->transfer_buffer = skb_tail_pointer(skb);
392 urb->context = skb;
393 skb_queue_tail(&priv->rx_queue, skb);
394
395 usb_anchor_urb(urb, &priv->anchored);
396 if (usb_submit_urb(urb, GFP_ATOMIC)) {
397 usb_unanchor_urb(urb);
398 skb_unlink(skb, &priv->rx_queue);
399 dev_kfree_skb_irq(skb);
400 }
401 }
402
403 static int rtl8187_init_urbs(struct ieee80211_hw *dev)
404 {
405 struct rtl8187_priv *priv = dev->priv;
406 struct urb *entry = NULL;
407 struct sk_buff *skb;
408 struct rtl8187_rx_info *info;
409 int ret = 0;
410
411 while (skb_queue_len(&priv->rx_queue) < 16) {
412 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
413 if (!skb) {
414 ret = -ENOMEM;
415 goto err;
416 }
417 entry = usb_alloc_urb(0, GFP_KERNEL);
418 if (!entry) {
419 ret = -ENOMEM;
420 goto err;
421 }
422 usb_fill_bulk_urb(entry, priv->udev,
423 usb_rcvbulkpipe(priv->udev,
424 priv->is_rtl8187b ? 3 : 1),
425 skb_tail_pointer(skb),
426 RTL8187_MAX_RX, rtl8187_rx_cb, skb);
427 info = (struct rtl8187_rx_info *)skb->cb;
428 info->urb = entry;
429 info->dev = dev;
430 skb_queue_tail(&priv->rx_queue, skb);
431 usb_anchor_urb(entry, &priv->anchored);
432 ret = usb_submit_urb(entry, GFP_KERNEL);
433 if (ret) {
434 skb_unlink(skb, &priv->rx_queue);
435 usb_unanchor_urb(entry);
436 goto err;
437 }
438 usb_free_urb(entry);
439 }
440 return ret;
441
442 err:
443 usb_free_urb(entry);
444 kfree_skb(skb);
445 usb_kill_anchored_urbs(&priv->anchored);
446 return ret;
447 }
448
449 static void rtl8187b_status_cb(struct urb *urb)
450 {
451 struct ieee80211_hw *hw = (struct ieee80211_hw *)urb->context;
452 struct rtl8187_priv *priv = hw->priv;
453 u64 val;
454 unsigned int cmd_type;
455
456 if (unlikely(urb->status))
457 return;
458
459 /*
460 * Read from status buffer:
461 *
462 * bits [30:31] = cmd type:
463 * - 0 indicates tx beacon interrupt
464 * - 1 indicates tx close descriptor
465 *
466 * In the case of tx beacon interrupt:
467 * [0:9] = Last Beacon CW
468 * [10:29] = reserved
469 * [30:31] = 00b
470 * [32:63] = Last Beacon TSF
471 *
472 * If it's tx close descriptor:
473 * [0:7] = Packet Retry Count
474 * [8:14] = RTS Retry Count
475 * [15] = TOK
476 * [16:27] = Sequence No
477 * [28] = LS
478 * [29] = FS
479 * [30:31] = 01b
480 * [32:47] = unused (reserved?)
481 * [48:63] = MAC Used Time
482 */
483 val = le64_to_cpu(priv->b_tx_status.buf);
484
485 cmd_type = (val >> 30) & 0x3;
486 if (cmd_type == 1) {
487 unsigned int pkt_rc, seq_no;
488 bool tok;
489 struct sk_buff *skb;
490 struct ieee80211_hdr *ieee80211hdr;
491 unsigned long flags;
492
493 pkt_rc = val & 0xFF;
494 tok = val & (1 << 15);
495 seq_no = (val >> 16) & 0xFFF;
496
497 spin_lock_irqsave(&priv->b_tx_status.queue.lock, flags);
498 skb_queue_reverse_walk(&priv->b_tx_status.queue, skb) {
499 ieee80211hdr = (struct ieee80211_hdr *)skb->data;
500
501 /*
502 * While testing, it was discovered that the seq_no
503 * doesn't actually contains the sequence number.
504 * Instead of returning just the 12 bits of sequence
505 * number, hardware is returning entire sequence control
506 * (fragment number plus sequence number) in a 12 bit
507 * only field overflowing after some time. As a
508 * workaround, just consider the lower bits, and expect
509 * it's unlikely we wrongly ack some sent data
510 */
511 if ((le16_to_cpu(ieee80211hdr->seq_ctrl)
512 & 0xFFF) == seq_no)
513 break;
514 }
515 if (skb != (struct sk_buff *) &priv->b_tx_status.queue) {
516 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
517
518 __skb_unlink(skb, &priv->b_tx_status.queue);
519 if (tok)
520 info->flags |= IEEE80211_TX_STAT_ACK;
521 info->status.rates[0].count = pkt_rc + 1;
522
523 ieee80211_tx_status_irqsafe(hw, skb);
524 }
525 spin_unlock_irqrestore(&priv->b_tx_status.queue.lock, flags);
526 }
527
528 usb_anchor_urb(urb, &priv->anchored);
529 if (usb_submit_urb(urb, GFP_ATOMIC))
530 usb_unanchor_urb(urb);
531 }
532
533 static int rtl8187b_init_status_urb(struct ieee80211_hw *dev)
534 {
535 struct rtl8187_priv *priv = dev->priv;
536 struct urb *entry;
537 int ret = 0;
538
539 entry = usb_alloc_urb(0, GFP_KERNEL);
540 if (!entry)
541 return -ENOMEM;
542
543 usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 9),
544 &priv->b_tx_status.buf, sizeof(priv->b_tx_status.buf),
545 rtl8187b_status_cb, dev);
546
547 usb_anchor_urb(entry, &priv->anchored);
548 ret = usb_submit_urb(entry, GFP_KERNEL);
549 if (ret)
550 usb_unanchor_urb(entry);
551 usb_free_urb(entry);
552
553 return ret;
554 }
555
556 static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
557 {
558 struct rtl8187_priv *priv = dev->priv;
559 u8 reg;
560 int i;
561
562 reg = rtl818x_ioread8(priv, &priv->map->CMD);
563 reg &= (1 << 1);
564 reg |= RTL818X_CMD_RESET;
565 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
566
567 i = 10;
568 do {
569 msleep(2);
570 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
571 RTL818X_CMD_RESET))
572 break;
573 } while (--i);
574
575 if (!i) {
576 printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
577 return -ETIMEDOUT;
578 }
579
580 /* reload registers from eeprom */
581 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
582
583 i = 10;
584 do {
585 msleep(4);
586 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
587 RTL818X_EEPROM_CMD_CONFIG))
588 break;
589 } while (--i);
590
591 if (!i) {
592 printk(KERN_ERR "%s: eeprom reset timeout!\n",
593 wiphy_name(dev->wiphy));
594 return -ETIMEDOUT;
595 }
596
597 return 0;
598 }
599
600 static int rtl8187_init_hw(struct ieee80211_hw *dev)
601 {
602 struct rtl8187_priv *priv = dev->priv;
603 u8 reg;
604 int res;
605
606 /* reset */
607 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
608 RTL818X_EEPROM_CMD_CONFIG);
609 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
610 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg |
611 RTL818X_CONFIG3_ANAPARAM_WRITE);
612 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
613 RTL8187_RTL8225_ANAPARAM_ON);
614 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
615 RTL8187_RTL8225_ANAPARAM2_ON);
616 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg &
617 ~RTL818X_CONFIG3_ANAPARAM_WRITE);
618 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
619 RTL818X_EEPROM_CMD_NORMAL);
620
621 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
622
623 msleep(200);
624 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
625 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
626 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
627 msleep(200);
628
629 res = rtl8187_cmd_reset(dev);
630 if (res)
631 return res;
632
633 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
634 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
635 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
636 reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
637 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
638 RTL8187_RTL8225_ANAPARAM_ON);
639 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
640 RTL8187_RTL8225_ANAPARAM2_ON);
641 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
642 reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
643 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
644
645 /* setup card */
646 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
647 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0);
648
649 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
650 rtl818x_iowrite8(priv, &priv->map->GPIO0, 1);
651 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
652
653 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
654
655 rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
656 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
657 reg &= 0x3F;
658 reg |= 0x80;
659 rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
660
661 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
662
663 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
664 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
665 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0);
666
667 // TODO: set RESP_RATE and BRSR properly
668 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
669 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
670
671 /* host_usb_init */
672 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
673 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0);
674 reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
675 rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
676 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
677 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0x20);
678 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
679 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
680 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
681 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
682 msleep(100);
683
684 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
685 rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
686 rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
687 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
688 RTL818X_EEPROM_CMD_CONFIG);
689 rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
690 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
691 RTL818X_EEPROM_CMD_NORMAL);
692 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
693 msleep(100);
694
695 priv->rf->init(dev);
696
697 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
698 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
699 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
700 rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
701 rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
702 rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
703 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
704
705 return 0;
706 }
707
708 static const u8 rtl8187b_reg_table[][3] = {
709 {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
710 {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
711 {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
712 {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},
713
714 {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
715 {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
716 {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xE0, 0xFF, 1}, {0xE1, 0x0F, 1},
717 {0xE2, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, {0xF2, 0x02, 1},
718 {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, {0xF6, 0x06, 1},
719 {0xF7, 0x07, 1}, {0xF8, 0x08, 1},
720
721 {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
722 {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
723 {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
724 {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
725 {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
726 {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
727 {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, {0x72, 0x56, 2},
728 {0x73, 0x9A, 2},
729
730 {0x34, 0xF0, 0}, {0x35, 0x0F, 0}, {0x5B, 0x40, 0}, {0x84, 0x88, 0},
731 {0x85, 0x24, 0}, {0x88, 0x54, 0}, {0x8B, 0xB8, 0}, {0x8C, 0x07, 0},
732 {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, {0x95, 0x12, 0}, {0x96, 0x00, 0},
733 {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, {0x9F, 0x10, 0}, {0xB4, 0x22, 0},
734 {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, {0xEE, 0x00, 0}, {0x4C, 0x00, 2},
735
736 {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0}, {0x8E, 0x08, 0},
737 {0x8F, 0x00, 0}
738 };
739
740 static int rtl8187b_init_hw(struct ieee80211_hw *dev)
741 {
742 struct rtl8187_priv *priv = dev->priv;
743 int res, i;
744 u8 reg;
745
746 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
747 RTL818X_EEPROM_CMD_CONFIG);
748
749 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
750 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE | RTL818X_CONFIG3_GNT_SELECT;
751 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
752 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
753 RTL8187B_RTL8225_ANAPARAM2_ON);
754 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
755 RTL8187B_RTL8225_ANAPARAM_ON);
756 rtl818x_iowrite8(priv, &priv->map->ANAPARAM3,
757 RTL8187B_RTL8225_ANAPARAM3_ON);
758
759 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
760 reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
761 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
762 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));
763
764 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
765 reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
766 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
767
768 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
769 RTL818X_EEPROM_CMD_NORMAL);
770
771 res = rtl8187_cmd_reset(dev);
772 if (res)
773 return res;
774
775 rtl818x_iowrite16(priv, (__le16 *)0xFF2D, 0x0FFF);
776 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
777 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
778 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
779 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
780 reg |= RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT |
781 RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
782 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
783
784 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
785
786 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
787 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
788 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);
789
790 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
791 RTL818X_EEPROM_CMD_CONFIG);
792 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
793 rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
794 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
795 RTL818X_EEPROM_CMD_NORMAL);
796
797 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
798 for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
799 rtl818x_iowrite8_idx(priv,
800 (u8 *)(uintptr_t)
801 (rtl8187b_reg_table[i][0] | 0xFF00),
802 rtl8187b_reg_table[i][1],
803 rtl8187b_reg_table[i][2]);
804 }
805
806 rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
807 rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
808
809 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
810 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
811 rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);
812
813 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);
814
815 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
816
817 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
818 RTL818X_EEPROM_CMD_CONFIG);
819 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
820 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
821 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
822 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
823 RTL818X_EEPROM_CMD_NORMAL);
824
825 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
826 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
827 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
828 msleep(100);
829
830 priv->rf->init(dev);
831
832 reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
833 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
834 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
835
836 rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
837 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
838 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
839 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
840 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
841 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
842 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
843
844 reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
845 rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
846 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
847 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
848 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
849 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
850 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
851 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
852 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
853 rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
854 rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
855 rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
856 rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);
857
858 rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);
859
860 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);
861
862 priv->slot_time = 0x9;
863 priv->aifsn[0] = 2; /* AIFSN[AC_VO] */
864 priv->aifsn[1] = 2; /* AIFSN[AC_VI] */
865 priv->aifsn[2] = 7; /* AIFSN[AC_BK] */
866 priv->aifsn[3] = 3; /* AIFSN[AC_BE] */
867 rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0);
868
869 /* ENEDCA flag must always be set, transmit issues? */
870 rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_ENEDCA);
871
872 return 0;
873 }
874
875 static void rtl8187_work(struct work_struct *work)
876 {
877 /* The RTL8187 returns the retry count through register 0xFFFA. In
878 * addition, it appears to be a cumulative retry count, not the
879 * value for the current TX packet. When multiple TX entries are
880 * queued, the retry count will be valid for the last one in the queue.
881 * The "error" should not matter for purposes of rate setting. */
882 struct rtl8187_priv *priv = container_of(work, struct rtl8187_priv,
883 work.work);
884 struct ieee80211_tx_info *info;
885 struct ieee80211_hw *dev = priv->dev;
886 static u16 retry;
887 u16 tmp;
888
889 mutex_lock(&priv->conf_mutex);
890 tmp = rtl818x_ioread16(priv, (__le16 *)0xFFFA);
891 while (skb_queue_len(&priv->b_tx_status.queue) > 0) {
892 struct sk_buff *old_skb;
893
894 old_skb = skb_dequeue(&priv->b_tx_status.queue);
895 info = IEEE80211_SKB_CB(old_skb);
896 info->status.rates[0].count = tmp - retry + 1;
897 ieee80211_tx_status_irqsafe(dev, old_skb);
898 }
899 retry = tmp;
900 mutex_unlock(&priv->conf_mutex);
901 }
902
903 static int rtl8187_start(struct ieee80211_hw *dev)
904 {
905 struct rtl8187_priv *priv = dev->priv;
906 u32 reg;
907 int ret;
908
909 mutex_lock(&priv->conf_mutex);
910
911 ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
912 rtl8187b_init_hw(dev);
913 if (ret)
914 goto rtl8187_start_exit;
915
916 init_usb_anchor(&priv->anchored);
917 priv->dev = dev;
918
919 if (priv->is_rtl8187b) {
920 reg = RTL818X_RX_CONF_MGMT |
921 RTL818X_RX_CONF_DATA |
922 RTL818X_RX_CONF_BROADCAST |
923 RTL818X_RX_CONF_NICMAC |
924 RTL818X_RX_CONF_BSSID |
925 (7 << 13 /* RX FIFO threshold NONE */) |
926 (7 << 10 /* MAX RX DMA */) |
927 RTL818X_RX_CONF_RX_AUTORESETPHY |
928 RTL818X_RX_CONF_ONLYERLPKT |
929 RTL818X_RX_CONF_MULTICAST;
930 priv->rx_conf = reg;
931 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
932
933 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
934 RTL818X_TX_CONF_HW_SEQNUM |
935 RTL818X_TX_CONF_DISREQQSIZE |
936 (7 << 8 /* short retry limit */) |
937 (7 << 0 /* long retry limit */) |
938 (7 << 21 /* MAX TX DMA */));
939 rtl8187_init_urbs(dev);
940 rtl8187b_init_status_urb(dev);
941 goto rtl8187_start_exit;
942 }
943
944 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
945
946 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
947 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
948
949 rtl8187_init_urbs(dev);
950
951 reg = RTL818X_RX_CONF_ONLYERLPKT |
952 RTL818X_RX_CONF_RX_AUTORESETPHY |
953 RTL818X_RX_CONF_BSSID |
954 RTL818X_RX_CONF_MGMT |
955 RTL818X_RX_CONF_DATA |
956 (7 << 13 /* RX FIFO threshold NONE */) |
957 (7 << 10 /* MAX RX DMA */) |
958 RTL818X_RX_CONF_BROADCAST |
959 RTL818X_RX_CONF_NICMAC;
960
961 priv->rx_conf = reg;
962 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
963
964 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
965 reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
966 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
967 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
968
969 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
970 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
971 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
972 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
973 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
974
975 reg = RTL818X_TX_CONF_CW_MIN |
976 (7 << 21 /* MAX TX DMA */) |
977 RTL818X_TX_CONF_NO_ICV;
978 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
979
980 reg = rtl818x_ioread8(priv, &priv->map->CMD);
981 reg |= RTL818X_CMD_TX_ENABLE;
982 reg |= RTL818X_CMD_RX_ENABLE;
983 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
984 INIT_DELAYED_WORK(&priv->work, rtl8187_work);
985
986 rtl8187_start_exit:
987 mutex_unlock(&priv->conf_mutex);
988 return ret;
989 }
990
991 static void rtl8187_stop(struct ieee80211_hw *dev)
992 {
993 struct rtl8187_priv *priv = dev->priv;
994 struct sk_buff *skb;
995 u32 reg;
996
997 mutex_lock(&priv->conf_mutex);
998 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
999
1000 reg = rtl818x_ioread8(priv, &priv->map->CMD);
1001 reg &= ~RTL818X_CMD_TX_ENABLE;
1002 reg &= ~RTL818X_CMD_RX_ENABLE;
1003 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
1004
1005 priv->rf->stop(dev);
1006
1007 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1008 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
1009 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
1010 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1011
1012 while ((skb = skb_dequeue(&priv->b_tx_status.queue)))
1013 dev_kfree_skb_any(skb);
1014
1015 usb_kill_anchored_urbs(&priv->anchored);
1016 mutex_unlock(&priv->conf_mutex);
1017
1018 if (!priv->is_rtl8187b)
1019 cancel_delayed_work_sync(&priv->work);
1020 }
1021
1022 static int rtl8187_add_interface(struct ieee80211_hw *dev,
1023 struct ieee80211_vif *vif)
1024 {
1025 struct rtl8187_priv *priv = dev->priv;
1026 int i;
1027 int ret = -EOPNOTSUPP;
1028
1029 mutex_lock(&priv->conf_mutex);
1030 if (priv->vif)
1031 goto exit;
1032
1033 switch (vif->type) {
1034 case NL80211_IFTYPE_STATION:
1035 break;
1036 default:
1037 goto exit;
1038 }
1039
1040 ret = 0;
1041 priv->vif = vif;
1042
1043 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1044 for (i = 0; i < ETH_ALEN; i++)
1045 rtl818x_iowrite8(priv, &priv->map->MAC[i],
1046 ((u8 *)vif->addr)[i]);
1047 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1048
1049 exit:
1050 mutex_unlock(&priv->conf_mutex);
1051 return ret;
1052 }
1053
1054 static void rtl8187_remove_interface(struct ieee80211_hw *dev,
1055 struct ieee80211_vif *vif)
1056 {
1057 struct rtl8187_priv *priv = dev->priv;
1058 mutex_lock(&priv->conf_mutex);
1059 priv->vif = NULL;
1060 mutex_unlock(&priv->conf_mutex);
1061 }
1062
1063 static int rtl8187_config(struct ieee80211_hw *dev, u32 changed)
1064 {
1065 struct rtl8187_priv *priv = dev->priv;
1066 struct ieee80211_conf *conf = &dev->conf;
1067 u32 reg;
1068
1069 mutex_lock(&priv->conf_mutex);
1070 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1071 /* Enable TX loopback on MAC level to avoid TX during channel
1072 * changes, as this has be seen to causes problems and the
1073 * card will stop work until next reset
1074 */
1075 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
1076 reg | RTL818X_TX_CONF_LOOPBACK_MAC);
1077 priv->rf->set_chan(dev, conf);
1078 msleep(10);
1079 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
1080
1081 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
1082 rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
1083 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
1084 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
1085 mutex_unlock(&priv->conf_mutex);
1086 return 0;
1087 }
1088
1089 /*
1090 * With 8187B, AC_*_PARAM clashes with FEMR definition in struct rtl818x_csr for
1091 * example. Thus we have to use raw values for AC_*_PARAM register addresses.
1092 */
1093 static __le32 *rtl8187b_ac_addr[4] = {
1094 (__le32 *) 0xFFF0, /* AC_VO */
1095 (__le32 *) 0xFFF4, /* AC_VI */
1096 (__le32 *) 0xFFFC, /* AC_BK */
1097 (__le32 *) 0xFFF8, /* AC_BE */
1098 };
1099
1100 #define SIFS_TIME 0xa
1101
1102 static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot,
1103 bool use_short_preamble)
1104 {
1105 if (priv->is_rtl8187b) {
1106 u8 difs, eifs;
1107 u16 ack_timeout;
1108 int queue;
1109
1110 if (use_short_slot) {
1111 priv->slot_time = 0x9;
1112 difs = 0x1c;
1113 eifs = 0x53;
1114 } else {
1115 priv->slot_time = 0x14;
1116 difs = 0x32;
1117 eifs = 0x5b;
1118 }
1119 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
1120 rtl818x_iowrite8(priv, &priv->map->SLOT, priv->slot_time);
1121 rtl818x_iowrite8(priv, &priv->map->DIFS, difs);
1122
1123 /*
1124 * BRSR+1 on 8187B is in fact EIFS register
1125 * Value in units of 4 us
1126 */
1127 rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs);
1128
1129 /*
1130 * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout
1131 * register. In units of 4 us like eifs register
1132 * ack_timeout = ack duration + plcp + difs + preamble
1133 */
1134 ack_timeout = 112 + 48 + difs;
1135 if (use_short_preamble)
1136 ack_timeout += 72;
1137 else
1138 ack_timeout += 144;
1139 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER,
1140 DIV_ROUND_UP(ack_timeout, 4));
1141
1142 for (queue = 0; queue < 4; queue++)
1143 rtl818x_iowrite8(priv, (u8 *) rtl8187b_ac_addr[queue],
1144 priv->aifsn[queue] * priv->slot_time +
1145 SIFS_TIME);
1146 } else {
1147 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
1148 if (use_short_slot) {
1149 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
1150 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
1151 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
1152 } else {
1153 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
1154 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
1155 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
1156 }
1157 }
1158 }
1159
1160 static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
1161 struct ieee80211_vif *vif,
1162 struct ieee80211_bss_conf *info,
1163 u32 changed)
1164 {
1165 struct rtl8187_priv *priv = dev->priv;
1166 int i;
1167 u8 reg;
1168
1169 if (changed & BSS_CHANGED_BSSID) {
1170 mutex_lock(&priv->conf_mutex);
1171 for (i = 0; i < ETH_ALEN; i++)
1172 rtl818x_iowrite8(priv, &priv->map->BSSID[i],
1173 info->bssid[i]);
1174
1175 if (priv->is_rtl8187b)
1176 reg = RTL818X_MSR_ENEDCA;
1177 else
1178 reg = 0;
1179
1180 if (is_valid_ether_addr(info->bssid)) {
1181 reg |= RTL818X_MSR_INFRA;
1182 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
1183 } else {
1184 reg |= RTL818X_MSR_NO_LINK;
1185 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
1186 }
1187
1188 mutex_unlock(&priv->conf_mutex);
1189 }
1190
1191 if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE))
1192 rtl8187_conf_erp(priv, info->use_short_slot,
1193 info->use_short_preamble);
1194 }
1195
1196 static u64 rtl8187_prepare_multicast(struct ieee80211_hw *dev,
1197 int mc_count, struct dev_addr_list *mc_list)
1198 {
1199 return mc_count;
1200 }
1201
1202 static void rtl8187_configure_filter(struct ieee80211_hw *dev,
1203 unsigned int changed_flags,
1204 unsigned int *total_flags,
1205 u64 multicast)
1206 {
1207 struct rtl8187_priv *priv = dev->priv;
1208
1209 if (changed_flags & FIF_FCSFAIL)
1210 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
1211 if (changed_flags & FIF_CONTROL)
1212 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
1213 if (changed_flags & FIF_OTHER_BSS)
1214 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
1215 if (*total_flags & FIF_ALLMULTI || multicast > 0)
1216 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
1217 else
1218 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
1219
1220 *total_flags = 0;
1221
1222 if (priv->rx_conf & RTL818X_RX_CONF_FCS)
1223 *total_flags |= FIF_FCSFAIL;
1224 if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
1225 *total_flags |= FIF_CONTROL;
1226 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
1227 *total_flags |= FIF_OTHER_BSS;
1228 if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
1229 *total_flags |= FIF_ALLMULTI;
1230
1231 rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
1232 }
1233
1234 static int rtl8187_conf_tx(struct ieee80211_hw *dev, u16 queue,
1235 const struct ieee80211_tx_queue_params *params)
1236 {
1237 struct rtl8187_priv *priv = dev->priv;
1238 u8 cw_min, cw_max;
1239
1240 if (queue > 3)
1241 return -EINVAL;
1242
1243 cw_min = fls(params->cw_min);
1244 cw_max = fls(params->cw_max);
1245
1246 if (priv->is_rtl8187b) {
1247 priv->aifsn[queue] = params->aifs;
1248
1249 /*
1250 * This is the structure of AC_*_PARAM registers in 8187B:
1251 * - TXOP limit field, bit offset = 16
1252 * - ECWmax, bit offset = 12
1253 * - ECWmin, bit offset = 8
1254 * - AIFS, bit offset = 0
1255 */
1256 rtl818x_iowrite32(priv, rtl8187b_ac_addr[queue],
1257 (params->txop << 16) | (cw_max << 12) |
1258 (cw_min << 8) | (params->aifs *
1259 priv->slot_time + SIFS_TIME));
1260 } else {
1261 if (queue != 0)
1262 return -EINVAL;
1263
1264 rtl818x_iowrite8(priv, &priv->map->CW_VAL,
1265 cw_min | (cw_max << 4));
1266 }
1267 return 0;
1268 }
1269
1270 static u64 rtl8187_get_tsf(struct ieee80211_hw *dev)
1271 {
1272 struct rtl8187_priv *priv = dev->priv;
1273
1274 return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
1275 (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
1276 }
1277
1278 static const struct ieee80211_ops rtl8187_ops = {
1279 .tx = rtl8187_tx,
1280 .start = rtl8187_start,
1281 .stop = rtl8187_stop,
1282 .add_interface = rtl8187_add_interface,
1283 .remove_interface = rtl8187_remove_interface,
1284 .config = rtl8187_config,
1285 .bss_info_changed = rtl8187_bss_info_changed,
1286 .prepare_multicast = rtl8187_prepare_multicast,
1287 .configure_filter = rtl8187_configure_filter,
1288 .conf_tx = rtl8187_conf_tx,
1289 .rfkill_poll = rtl8187_rfkill_poll,
1290 .get_tsf = rtl8187_get_tsf,
1291 };
1292
1293 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
1294 {
1295 struct ieee80211_hw *dev = eeprom->data;
1296 struct rtl8187_priv *priv = dev->priv;
1297 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1298
1299 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
1300 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
1301 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
1302 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
1303 }
1304
1305 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
1306 {
1307 struct ieee80211_hw *dev = eeprom->data;
1308 struct rtl8187_priv *priv = dev->priv;
1309 u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
1310
1311 if (eeprom->reg_data_in)
1312 reg |= RTL818X_EEPROM_CMD_WRITE;
1313 if (eeprom->reg_data_out)
1314 reg |= RTL818X_EEPROM_CMD_READ;
1315 if (eeprom->reg_data_clock)
1316 reg |= RTL818X_EEPROM_CMD_CK;
1317 if (eeprom->reg_chip_select)
1318 reg |= RTL818X_EEPROM_CMD_CS;
1319
1320 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
1321 udelay(10);
1322 }
1323
1324 static int __devinit rtl8187_probe(struct usb_interface *intf,
1325 const struct usb_device_id *id)
1326 {
1327 struct usb_device *udev = interface_to_usbdev(intf);
1328 struct ieee80211_hw *dev;
1329 struct rtl8187_priv *priv;
1330 struct eeprom_93cx6 eeprom;
1331 struct ieee80211_channel *channel;
1332 const char *chip_name;
1333 u16 txpwr, reg;
1334 u16 product_id = le16_to_cpu(udev->descriptor.idProduct);
1335 int err, i;
1336
1337 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
1338 if (!dev) {
1339 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
1340 return -ENOMEM;
1341 }
1342
1343 priv = dev->priv;
1344 priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
1345
1346 /* allocate "DMA aware" buffer for register accesses */
1347 priv->io_dmabuf = kmalloc(sizeof(*priv->io_dmabuf), GFP_KERNEL);
1348 if (!priv->io_dmabuf) {
1349 err = -ENOMEM;
1350 goto err_free_dev;
1351 }
1352 mutex_init(&priv->io_mutex);
1353
1354 SET_IEEE80211_DEV(dev, &intf->dev);
1355 usb_set_intfdata(intf, dev);
1356 priv->udev = udev;
1357
1358 usb_get_dev(udev);
1359
1360 skb_queue_head_init(&priv->rx_queue);
1361
1362 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
1363 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
1364
1365 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
1366 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
1367 priv->map = (struct rtl818x_csr *)0xFF00;
1368
1369 priv->band.band = IEEE80211_BAND_2GHZ;
1370 priv->band.channels = priv->channels;
1371 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
1372 priv->band.bitrates = priv->rates;
1373 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1374 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
1375
1376
1377 dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1378 IEEE80211_HW_SIGNAL_DBM |
1379 IEEE80211_HW_RX_INCLUDES_FCS;
1380
1381 eeprom.data = dev;
1382 eeprom.register_read = rtl8187_eeprom_register_read;
1383 eeprom.register_write = rtl8187_eeprom_register_write;
1384 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1385 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1386 else
1387 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1388
1389 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1390 udelay(10);
1391
1392 eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
1393 (__le16 __force *)dev->wiphy->perm_addr, 3);
1394 if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
1395 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
1396 "generated MAC address\n");
1397 random_ether_addr(dev->wiphy->perm_addr);
1398 }
1399
1400 channel = priv->channels;
1401 for (i = 0; i < 3; i++) {
1402 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
1403 &txpwr);
1404 (*channel++).hw_value = txpwr & 0xFF;
1405 (*channel++).hw_value = txpwr >> 8;
1406 }
1407 for (i = 0; i < 2; i++) {
1408 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
1409 &txpwr);
1410 (*channel++).hw_value = txpwr & 0xFF;
1411 (*channel++).hw_value = txpwr >> 8;
1412 }
1413
1414 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
1415 &priv->txpwr_base);
1416
1417 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
1418 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
1419 /* 0 means asic B-cut, we should use SW 3 wire
1420 * bit-by-bit banging for radio. 1 means we can use
1421 * USB specific request to write radio registers */
1422 priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
1423 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
1424 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1425
1426 if (!priv->is_rtl8187b) {
1427 u32 reg32;
1428 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1429 reg32 &= RTL818X_TX_CONF_HWVER_MASK;
1430 switch (reg32) {
1431 case RTL818X_TX_CONF_R8187vD_B:
1432 /* Some RTL8187B devices have a USB ID of 0x8187
1433 * detect them here */
1434 chip_name = "RTL8187BvB(early)";
1435 priv->is_rtl8187b = 1;
1436 priv->hw_rev = RTL8187BvB;
1437 break;
1438 case RTL818X_TX_CONF_R8187vD:
1439 chip_name = "RTL8187vD";
1440 break;
1441 default:
1442 chip_name = "RTL8187vB (default)";
1443 }
1444 } else {
1445 /*
1446 * Force USB request to write radio registers for 8187B, Realtek
1447 * only uses it in their sources
1448 */
1449 /*if (priv->asic_rev == 0) {
1450 printk(KERN_WARNING "rtl8187: Forcing use of USB "
1451 "requests to write to radio registers\n");
1452 priv->asic_rev = 1;
1453 }*/
1454 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
1455 case RTL818X_R8187B_B:
1456 chip_name = "RTL8187BvB";
1457 priv->hw_rev = RTL8187BvB;
1458 break;
1459 case RTL818X_R8187B_D:
1460 chip_name = "RTL8187BvD";
1461 priv->hw_rev = RTL8187BvD;
1462 break;
1463 case RTL818X_R8187B_E:
1464 chip_name = "RTL8187BvE";
1465 priv->hw_rev = RTL8187BvE;
1466 break;
1467 default:
1468 chip_name = "RTL8187BvB (default)";
1469 priv->hw_rev = RTL8187BvB;
1470 }
1471 }
1472
1473 if (!priv->is_rtl8187b) {
1474 for (i = 0; i < 2; i++) {
1475 eeprom_93cx6_read(&eeprom,
1476 RTL8187_EEPROM_TXPWR_CHAN_6 + i,
1477 &txpwr);
1478 (*channel++).hw_value = txpwr & 0xFF;
1479 (*channel++).hw_value = txpwr >> 8;
1480 }
1481 } else {
1482 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
1483 &txpwr);
1484 (*channel++).hw_value = txpwr & 0xFF;
1485
1486 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
1487 (*channel++).hw_value = txpwr & 0xFF;
1488
1489 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
1490 (*channel++).hw_value = txpwr & 0xFF;
1491 (*channel++).hw_value = txpwr >> 8;
1492 }
1493 /* Handle the differing rfkill GPIO bit in different models */
1494 priv->rfkill_mask = RFKILL_MASK_8187_89_97;
1495 if (product_id == 0x8197 || product_id == 0x8198) {
1496 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_SELECT_GPIO, &reg);
1497 if (reg & 0xFF00)
1498 priv->rfkill_mask = RFKILL_MASK_8198;
1499 }
1500
1501 /*
1502 * XXX: Once this driver supports anything that requires
1503 * beacons it must implement IEEE80211_TX_CTL_ASSIGN_SEQ.
1504 */
1505 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1506
1507 if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
1508 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
1509 " info!\n");
1510
1511 priv->rf = rtl8187_detect_rf(dev);
1512 dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
1513 sizeof(struct rtl8187_tx_hdr) :
1514 sizeof(struct rtl8187b_tx_hdr);
1515 if (!priv->is_rtl8187b)
1516 dev->queues = 1;
1517 else
1518 dev->queues = 4;
1519
1520 err = ieee80211_register_hw(dev);
1521 if (err) {
1522 printk(KERN_ERR "rtl8187: Cannot register device\n");
1523 goto err_free_dmabuf;
1524 }
1525 mutex_init(&priv->conf_mutex);
1526 skb_queue_head_init(&priv->b_tx_status.queue);
1527
1528 printk(KERN_INFO "%s: hwaddr %pM, %s V%d + %s, rfkill mask %d\n",
1529 wiphy_name(dev->wiphy), dev->wiphy->perm_addr,
1530 chip_name, priv->asic_rev, priv->rf->name, priv->rfkill_mask);
1531
1532 #ifdef CONFIG_RTL8187_LEDS
1533 eeprom_93cx6_read(&eeprom, 0x3F, &reg);
1534 reg &= 0xFF;
1535 rtl8187_leds_init(dev, reg);
1536 #endif
1537 rtl8187_rfkill_init(dev);
1538
1539 return 0;
1540
1541 err_free_dmabuf:
1542 kfree(priv->io_dmabuf);
1543 err_free_dev:
1544 ieee80211_free_hw(dev);
1545 usb_set_intfdata(intf, NULL);
1546 usb_put_dev(udev);
1547 return err;
1548 }
1549
1550 static void __devexit rtl8187_disconnect(struct usb_interface *intf)
1551 {
1552 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1553 struct rtl8187_priv *priv;
1554
1555 if (!dev)
1556 return;
1557
1558 #ifdef CONFIG_RTL8187_LEDS
1559 rtl8187_leds_exit(dev);
1560 #endif
1561 rtl8187_rfkill_exit(dev);
1562 ieee80211_unregister_hw(dev);
1563
1564 priv = dev->priv;
1565 usb_reset_device(priv->udev);
1566 usb_put_dev(interface_to_usbdev(intf));
1567 kfree(priv->io_dmabuf);
1568 ieee80211_free_hw(dev);
1569 }
1570
1571 static struct usb_driver rtl8187_driver = {
1572 .name = KBUILD_MODNAME,
1573 .id_table = rtl8187_table,
1574 .probe = rtl8187_probe,
1575 .disconnect = __devexit_p(rtl8187_disconnect),
1576 };
1577
1578 static int __init rtl8187_init(void)
1579 {
1580 return usb_register(&rtl8187_driver);
1581 }
1582
1583 static void __exit rtl8187_exit(void)
1584 {
1585 usb_deregister(&rtl8187_driver);
1586 }
1587
1588 module_init(rtl8187_init);
1589 module_exit(rtl8187_exit);
Linux with added FPC-III support