]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blob - drivers/net/wireless/rtl818x/rtl8187_dev.c
projects / mirror_ubuntu-hirsute-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
[mirror_ubuntu-hirsute-kernel.git] / drivers / net / wireless / rtl818x / 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 * 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/delay.h>
26 #include <linux/etherdevice.h>
27 #include <linux/eeprom_93cx6.h>
28 #include <net/mac80211.h>
29
30 #include "rtl8187.h"
31 #include "rtl8187_rtl8225.h"
32 #ifdef CONFIG_RTL8187_LEDS
33 #include "rtl8187_leds.h"
34 #endif
35 #include "rtl8187_rfkill.h"
36
37 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
38 MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
39 MODULE_AUTHOR("Herton Ronaldo Krzesinski <herton@mandriva.com.br>");
40 MODULE_AUTHOR("Hin-Tak Leung <htl10@users.sourceforge.net>");
41 MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>");
42 MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
43 MODULE_LICENSE("GPL");
44
45 static struct usb_device_id rtl8187_table[] __devinitdata = {
46 /* Asus */
47 {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
48 /* Belkin */
49 {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B},
50 /* Realtek */
51 {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
52 {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
53 {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
54 {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B},
55 /* Surecom */
56 {USB_DEVICE(0x0769, 0x11F2), .driver_info = DEVICE_RTL8187},
57 /* Logitech */
58 {USB_DEVICE(0x0789, 0x010C), .driver_info = DEVICE_RTL8187},
59 /* Netgear */
60 {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
61 {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
62 {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B},
63 /* HP */
64 {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
65 /* Sitecom */
66 {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
67 {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
68 {USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B},
69 /* Sphairon Access Systems GmbH */
70 {USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187},
71 /* Dick Smith Electronics */
72 {USB_DEVICE(0x1371, 0x9401), .driver_info = DEVICE_RTL8187},
73 /* Abocom */
74 {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187},
75 /* Qcom */
76 {USB_DEVICE(0x18E8, 0x6232), .driver_info = DEVICE_RTL8187},
77 /* AirLive */
78 {USB_DEVICE(0x1b75, 0x8187), .driver_info = DEVICE_RTL8187},
79 /* Linksys */
80 {USB_DEVICE(0x1737, 0x0073), .driver_info = DEVICE_RTL8187B},
81 {}
82 };
83
84 MODULE_DEVICE_TABLE(usb, rtl8187_table);
85
86 static const struct ieee80211_rate rtl818x_rates[] = {
87 { .bitrate = 10, .hw_value = 0, },
88 { .bitrate = 20, .hw_value = 1, },
89 { .bitrate = 55, .hw_value = 2, },
90 { .bitrate = 110, .hw_value = 3, },
91 { .bitrate = 60, .hw_value = 4, },
92 { .bitrate = 90, .hw_value = 5, },
93 { .bitrate = 120, .hw_value = 6, },
94 { .bitrate = 180, .hw_value = 7, },
95 { .bitrate = 240, .hw_value = 8, },
96 { .bitrate = 360, .hw_value = 9, },
97 { .bitrate = 480, .hw_value = 10, },
98 { .bitrate = 540, .hw_value = 11, },
99 };
100
101 static const struct ieee80211_channel rtl818x_channels[] = {
102 { .center_freq = 2412 },
103 { .center_freq = 2417 },
104 { .center_freq = 2422 },
105 { .center_freq = 2427 },
106 { .center_freq = 2432 },
107 { .center_freq = 2437 },
108 { .center_freq = 2442 },
109 { .center_freq = 2447 },
110 { .center_freq = 2452 },
111 { .center_freq = 2457 },
112 { .center_freq = 2462 },
113 { .center_freq = 2467 },
114 { .center_freq = 2472 },
115 { .center_freq = 2484 },
116 };
117
118 static void rtl8187_iowrite_async_cb(struct urb *urb)
119 {
120 kfree(urb->context);
121 }
122
123 static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
124 void *data, u16 len)
125 {
126 struct usb_ctrlrequest *dr;
127 struct urb *urb;
128 struct rtl8187_async_write_data {
129 u8 data[4];
130 struct usb_ctrlrequest dr;
131 } *buf;
132 int rc;
133
134 buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
135 if (!buf)
136 return;
137
138 urb = usb_alloc_urb(0, GFP_ATOMIC);
139 if (!urb) {
140 kfree(buf);
141 return;
142 }
143
144 dr = &buf->dr;
145
146 dr->bRequestType = RTL8187_REQT_WRITE;
147 dr->bRequest = RTL8187_REQ_SET_REG;
148 dr->wValue = addr;
149 dr->wIndex = 0;
150 dr->wLength = cpu_to_le16(len);
151
152 memcpy(buf, data, len);
153
154 usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
155 (unsigned char *)dr, buf, len,
156 rtl8187_iowrite_async_cb, buf);
157 usb_anchor_urb(urb, &priv->anchored);
158 rc = usb_submit_urb(urb, GFP_ATOMIC);
159 if (rc < 0) {
160 kfree(buf);
161 usb_unanchor_urb(urb);
162 }
163 usb_free_urb(urb);
164 }
165
166 static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
167 __le32 *addr, u32 val)
168 {
169 __le32 buf = cpu_to_le32(val);
170
171 rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
172 &buf, sizeof(buf));
173 }
174
175 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
176 {
177 struct rtl8187_priv *priv = dev->priv;
178
179 data <<= 8;
180 data |= addr | 0x80;
181
182 rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
183 rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
184 rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
185 rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
186 }
187
188 static void rtl8187_tx_cb(struct urb *urb)
189 {
190 struct sk_buff *skb = (struct sk_buff *)urb->context;
191 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
192 struct ieee80211_hw *hw = info->rate_driver_data[0];
193 struct rtl8187_priv *priv = hw->priv;
194
195 skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
196 sizeof(struct rtl8187_tx_hdr));
197 ieee80211_tx_info_clear_status(info);
198
199 if (!(urb->status) && !(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
200 if (priv->is_rtl8187b) {
201 skb_queue_tail(&priv->b_tx_status.queue, skb);
202
203 /* queue is "full", discard last items */
204 while (skb_queue_len(&priv->b_tx_status.queue) > 5) {
205 struct sk_buff *old_skb;
206
207 dev_dbg(&priv->udev->dev,
208 "transmit status queue full\n");
209
210 old_skb = skb_dequeue(&priv->b_tx_status.queue);
211 ieee80211_tx_status_irqsafe(hw, old_skb);
212 }
213 return;
214 } else {
215 info->flags |= IEEE80211_TX_STAT_ACK;
216 }
217 }
218 if (priv->is_rtl8187b)
219 ieee80211_tx_status_irqsafe(hw, skb);
220 else {
221 /* Retry information for the RTI8187 is only available by
222 * reading a register in the device. We are in interrupt mode
223 * here, thus queue the skb and finish on a work queue. */
224 skb_queue_tail(&priv->b_tx_status.queue, skb);
225 ieee80211_queue_delayed_work(hw, &priv->work, 0);
226 }
227 }
228
229 static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
230 {
231 struct rtl8187_priv *priv = dev->priv;
232 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
233 unsigned int ep;
234 void *buf;
235 struct urb *urb;
236 __le16 rts_dur = 0;
237 u32 flags;
238 int rc;
239
240 urb = usb_alloc_urb(0, GFP_ATOMIC);
241 if (!urb) {
242 kfree_skb(skb);
243 return NETDEV_TX_OK;
244 }
245
246 flags = skb->len;
247 flags |= RTL818X_TX_DESC_FLAG_NO_ENC;
248
249 flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
250 if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
251 flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
252 if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
253 flags |= RTL818X_TX_DESC_FLAG_RTS;
254 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
255 rts_dur = ieee80211_rts_duration(dev, priv->vif,
256 skb->len, info);
257 } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
258 flags |= RTL818X_TX_DESC_FLAG_CTS;
259 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
260 }
261
262 if (!priv->is_rtl8187b) {
263 struct rtl8187_tx_hdr *hdr =
264 (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
265 hdr->flags = cpu_to_le32(flags);
266 hdr->len = 0;
267 hdr->rts_duration = rts_dur;
268 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
269 buf = hdr;
270
271 ep = 2;
272 } else {
273 /* fc needs to be calculated before skb_push() */
274 unsigned int epmap[4] = { 6, 7, 5, 4 };
275 struct ieee80211_hdr *tx_hdr =
276 (struct ieee80211_hdr *)(skb->data);
277 u16 fc = le16_to_cpu(tx_hdr->frame_control);
278
279 struct rtl8187b_tx_hdr *hdr =
280 (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
281 struct ieee80211_rate *txrate =
282 ieee80211_get_tx_rate(dev, info);
283 memset(hdr, 0, sizeof(*hdr));
284 hdr->flags = cpu_to_le32(flags);
285 hdr->rts_duration = rts_dur;
286 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
287 hdr->tx_duration =
288 ieee80211_generic_frame_duration(dev, priv->vif,
289 skb->len, txrate);
290 buf = hdr;
291
292 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
293 ep = 12;
294 else
295 ep = epmap[skb_get_queue_mapping(skb)];
296 }
297
298 info->rate_driver_data[0] = dev;
299 info->rate_driver_data[1] = urb;
300
301 usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
302 buf, skb->len, rtl8187_tx_cb, skb);
303 urb->transfer_flags |= URB_ZERO_PACKET;
304 usb_anchor_urb(urb, &priv->anchored);
305 rc = usb_submit_urb(urb, GFP_ATOMIC);
306 if (rc < 0) {
307 usb_unanchor_urb(urb);
308 kfree_skb(skb);
309 }
310 usb_free_urb(urb);
311
312 return NETDEV_TX_OK;
313 }
314
315 static void rtl8187_rx_cb(struct urb *urb)
316 {
317 struct sk_buff *skb = (struct sk_buff *)urb->context;
318 struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
319 struct ieee80211_hw *dev = info->dev;
320 struct rtl8187_priv *priv = dev->priv;
321 struct ieee80211_rx_status rx_status = { 0 };
322 int rate, signal;
323 u32 flags;
324 unsigned long f;
325
326 spin_lock_irqsave(&priv->rx_queue.lock, f);
327 __skb_unlink(skb, &priv->rx_queue);
328 spin_unlock_irqrestore(&priv->rx_queue.lock, f);
329 skb_put(skb, urb->actual_length);
330
331 if (unlikely(urb->status)) {
332 dev_kfree_skb_irq(skb);
333 return;
334 }
335
336 if (!priv->is_rtl8187b) {
337 struct rtl8187_rx_hdr *hdr =
338 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
339 flags = le32_to_cpu(hdr->flags);
340 /* As with the RTL8187B below, the AGC is used to calculate
341 * signal strength. In this case, the scaling
342 * constants are derived from the output of p54usb.
343 */
344 signal = -4 - ((27 * hdr->agc) >> 6);
345 rx_status.antenna = (hdr->signal >> 7) & 1;
346 rx_status.mactime = le64_to_cpu(hdr->mac_time);
347 } else {
348 struct rtl8187b_rx_hdr *hdr =
349 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
350 /* The Realtek datasheet for the RTL8187B shows that the RX
351 * header contains the following quantities: signal quality,
352 * RSSI, AGC, the received power in dB, and the measured SNR.
353 * In testing, none of these quantities show qualitative
354 * agreement with AP signal strength, except for the AGC,
355 * which is inversely proportional to the strength of the
356 * signal. In the following, the signal strength
357 * is derived from the AGC. The arbitrary scaling constants
358 * are chosen to make the results close to the values obtained
359 * for a BCM4312 using b43 as the driver. The noise is ignored
360 * for now.
361 */
362 flags = le32_to_cpu(hdr->flags);
363 signal = 14 - hdr->agc / 2;
364 rx_status.antenna = (hdr->rssi >> 7) & 1;
365 rx_status.mactime = le64_to_cpu(hdr->mac_time);
366 }
367
368 rx_status.signal = signal;
369 priv->signal = signal;
370 rate = (flags >> 20) & 0xF;
371 skb_trim(skb, flags & 0x0FFF);
372 rx_status.rate_idx = rate;
373 rx_status.freq = dev->conf.channel->center_freq;
374 rx_status.band = dev->conf.channel->band;
375 rx_status.flag |= RX_FLAG_TSFT;
376 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
377 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
378 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
379 ieee80211_rx_irqsafe(dev, skb);
380
381 skb = dev_alloc_skb(RTL8187_MAX_RX);
382 if (unlikely(!skb)) {
383 /* TODO check rx queue length and refill *somewhere* */
384 return;
385 }
386
387 info = (struct rtl8187_rx_info *)skb->cb;
388 info->urb = urb;
389 info->dev = dev;
390 urb->transfer_buffer = skb_tail_pointer(skb);
391 urb->context = skb;
392 skb_queue_tail(&priv->rx_queue, skb);
393
394 usb_anchor_urb(urb, &priv->anchored);
395 if (usb_submit_urb(urb, GFP_ATOMIC)) {
396 usb_unanchor_urb(urb);
397 skb_unlink(skb, &priv->rx_queue);
398 dev_kfree_skb_irq(skb);
399 }
400 }
401
402 static int rtl8187_init_urbs(struct ieee80211_hw *dev)
403 {
404 struct rtl8187_priv *priv = dev->priv;
405 struct urb *entry = NULL;
406 struct sk_buff *skb;
407 struct rtl8187_rx_info *info;
408 int ret = 0;
409
410 while (skb_queue_len(&priv->rx_queue) < 16) {
411 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
412 if (!skb) {
413 ret = -ENOMEM;
414 goto err;
415 }
416 entry = usb_alloc_urb(0, GFP_KERNEL);
417 if (!entry) {
418 ret = -ENOMEM;
419 goto err;
420 }
421 usb_fill_bulk_urb(entry, priv->udev,
422 usb_rcvbulkpipe(priv->udev,
423 priv->is_rtl8187b ? 3 : 1),
424 skb_tail_pointer(skb),
425 RTL8187_MAX_RX, rtl8187_rx_cb, skb);
426 info = (struct rtl8187_rx_info *)skb->cb;
427 info->urb = entry;
428 info->dev = dev;
429 skb_queue_tail(&priv->rx_queue, skb);
430 usb_anchor_urb(entry, &priv->anchored);
431 ret = usb_submit_urb(entry, GFP_KERNEL);
432 if (ret) {
433 skb_unlink(skb, &priv->rx_queue);
434 usb_unanchor_urb(entry);
435 goto err;
436 }
437 usb_free_urb(entry);
438 }
439 return ret;
440
441 err:
442 usb_free_urb(entry);
443 kfree_skb(skb);
444 usb_kill_anchored_urbs(&priv->anchored);
445 return ret;
446 }
447
448 static void rtl8187b_status_cb(struct urb *urb)
449 {
450 struct ieee80211_hw *hw = (struct ieee80211_hw *)urb->context;
451 struct rtl8187_priv *priv = hw->priv;
452 u64 val;
453 unsigned int cmd_type;
454
455 if (unlikely(urb->status))
456 return;
457
458 /*
459 * Read from status buffer:
460 *
461 * bits [30:31] = cmd type:
462 * - 0 indicates tx beacon interrupt
463 * - 1 indicates tx close descriptor
464 *
465 * In the case of tx beacon interrupt:
466 * [0:9] = Last Beacon CW
467 * [10:29] = reserved
468 * [30:31] = 00b
469 * [32:63] = Last Beacon TSF
470 *
471 * If it's tx close descriptor:
472 * [0:7] = Packet Retry Count
473 * [8:14] = RTS Retry Count
474 * [15] = TOK
475 * [16:27] = Sequence No
476 * [28] = LS
477 * [29] = FS
478 * [30:31] = 01b
479 * [32:47] = unused (reserved?)
480 * [48:63] = MAC Used Time
481 */
482 val = le64_to_cpu(priv->b_tx_status.buf);
483
484 cmd_type = (val >> 30) & 0x3;
485 if (cmd_type == 1) {
486 unsigned int pkt_rc, seq_no;
487 bool tok;
488 struct sk_buff *skb;
489 struct ieee80211_hdr *ieee80211hdr;
490 unsigned long flags;
491
492 pkt_rc = val & 0xFF;
493 tok = val & (1 << 15);
494 seq_no = (val >> 16) & 0xFFF;
495
496 spin_lock_irqsave(&priv->b_tx_status.queue.lock, flags);
497 skb_queue_reverse_walk(&priv->b_tx_status.queue, skb) {
498 ieee80211hdr = (struct ieee80211_hdr *)skb->data;
499
500 /*
501 * While testing, it was discovered that the seq_no
502 * doesn't actually contains the sequence number.
503 * Instead of returning just the 12 bits of sequence
504 * number, hardware is returning entire sequence control
505 * (fragment number plus sequence number) in a 12 bit
506 * only field overflowing after some time. As a
507 * workaround, just consider the lower bits, and expect
508 * it's unlikely we wrongly ack some sent data
509 */
510 if ((le16_to_cpu(ieee80211hdr->seq_ctrl)
511 & 0xFFF) == seq_no)
512 break;
513 }
514 if (skb != (struct sk_buff *) &priv->b_tx_status.queue) {
515 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
516
517 __skb_unlink(skb, &priv->b_tx_status.queue);
518 if (tok)
519 info->flags |= IEEE80211_TX_STAT_ACK;
520 info->status.rates[0].count = pkt_rc + 1;
521
522 ieee80211_tx_status_irqsafe(hw, skb);
523 }
524 spin_unlock_irqrestore(&priv->b_tx_status.queue.lock, flags);
525 }
526
527 usb_anchor_urb(urb, &priv->anchored);
528 if (usb_submit_urb(urb, GFP_ATOMIC))
529 usb_unanchor_urb(urb);
530 }
531
532 static int rtl8187b_init_status_urb(struct ieee80211_hw *dev)
533 {
534 struct rtl8187_priv *priv = dev->priv;
535 struct urb *entry;
536 int ret = 0;
537
538 entry = usb_alloc_urb(0, GFP_KERNEL);
539 if (!entry)
540 return -ENOMEM;
541
542 usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 9),
543 &priv->b_tx_status.buf, sizeof(priv->b_tx_status.buf),
544 rtl8187b_status_cb, dev);
545
546 usb_anchor_urb(entry, &priv->anchored);
547 ret = usb_submit_urb(entry, GFP_KERNEL);
548 if (ret)
549 usb_unanchor_urb(entry);
550 usb_free_urb(entry);
551
552 return ret;
553 }
554
555 static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
556 {
557 struct rtl8187_priv *priv = dev->priv;
558 u8 reg;
559 int i;
560
561 reg = rtl818x_ioread8(priv, &priv->map->CMD);
562 reg &= (1 << 1);
563 reg |= RTL818X_CMD_RESET;
564 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
565
566 i = 10;
567 do {
568 msleep(2);
569 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
570 RTL818X_CMD_RESET))
571 break;
572 } while (--i);
573
574 if (!i) {
575 printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
576 return -ETIMEDOUT;
577 }
578
579 /* reload registers from eeprom */
580 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
581
582 i = 10;
583 do {
584 msleep(4);
585 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
586 RTL818X_EEPROM_CMD_CONFIG))
587 break;
588 } while (--i);
589
590 if (!i) {
591 printk(KERN_ERR "%s: eeprom reset timeout!\n",
592 wiphy_name(dev->wiphy));
593 return -ETIMEDOUT;
594 }
595
596 return 0;
597 }
598
599 static int rtl8187_init_hw(struct ieee80211_hw *dev)
600 {
601 struct rtl8187_priv *priv = dev->priv;
602 u8 reg;
603 int res;
604
605 /* reset */
606 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
607 RTL818X_EEPROM_CMD_CONFIG);
608 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
609 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg |
610 RTL818X_CONFIG3_ANAPARAM_WRITE);
611 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
612 RTL8187_RTL8225_ANAPARAM_ON);
613 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
614 RTL8187_RTL8225_ANAPARAM2_ON);
615 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg &
616 ~RTL818X_CONFIG3_ANAPARAM_WRITE);
617 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
618 RTL818X_EEPROM_CMD_NORMAL);
619
620 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
621
622 msleep(200);
623 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
624 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
625 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
626 msleep(200);
627
628 res = rtl8187_cmd_reset(dev);
629 if (res)
630 return res;
631
632 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
633 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
634 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
635 reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
636 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
637 RTL8187_RTL8225_ANAPARAM_ON);
638 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
639 RTL8187_RTL8225_ANAPARAM2_ON);
640 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
641 reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
642 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
643
644 /* setup card */
645 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
646 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0);
647
648 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
649 rtl818x_iowrite8(priv, &priv->map->GPIO0, 1);
650 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
651
652 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
653
654 rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
655 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
656 reg &= 0x3F;
657 reg |= 0x80;
658 rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
659
660 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
661
662 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
663 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
664 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0);
665
666 // TODO: set RESP_RATE and BRSR properly
667 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
668 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
669
670 /* host_usb_init */
671 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
672 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0);
673 reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
674 rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
675 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
676 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0x20);
677 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
678 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
679 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
680 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
681 msleep(100);
682
683 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
684 rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
685 rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
686 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
687 RTL818X_EEPROM_CMD_CONFIG);
688 rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
689 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
690 RTL818X_EEPROM_CMD_NORMAL);
691 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
692 msleep(100);
693
694 priv->rf->init(dev);
695
696 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
697 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
698 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
699 rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
700 rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
701 rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
702 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
703
704 return 0;
705 }
706
707 static const u8 rtl8187b_reg_table[][3] = {
708 {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
709 {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
710 {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
711 {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},
712
713 {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
714 {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
715 {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xE0, 0xFF, 1}, {0xE1, 0x0F, 1},
716 {0xE2, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, {0xF2, 0x02, 1},
717 {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, {0xF6, 0x06, 1},
718 {0xF7, 0x07, 1}, {0xF8, 0x08, 1},
719
720 {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
721 {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
722 {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
723 {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
724 {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
725 {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
726 {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, {0x72, 0x56, 2},
727 {0x73, 0x9A, 2},
728
729 {0x34, 0xF0, 0}, {0x35, 0x0F, 0}, {0x5B, 0x40, 0}, {0x84, 0x88, 0},
730 {0x85, 0x24, 0}, {0x88, 0x54, 0}, {0x8B, 0xB8, 0}, {0x8C, 0x07, 0},
731 {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, {0x95, 0x12, 0}, {0x96, 0x00, 0},
732 {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, {0x9F, 0x10, 0}, {0xB4, 0x22, 0},
733 {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, {0xEE, 0x00, 0}, {0x4C, 0x00, 2},
734
735 {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0}, {0x8E, 0x08, 0},
736 {0x8F, 0x00, 0}
737 };
738
739 static int rtl8187b_init_hw(struct ieee80211_hw *dev)
740 {
741 struct rtl8187_priv *priv = dev->priv;
742 int res, i;
743 u8 reg;
744
745 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
746 RTL818X_EEPROM_CMD_CONFIG);
747
748 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
749 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE | RTL818X_CONFIG3_GNT_SELECT;
750 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
751 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
752 RTL8187B_RTL8225_ANAPARAM2_ON);
753 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
754 RTL8187B_RTL8225_ANAPARAM_ON);
755 rtl818x_iowrite8(priv, &priv->map->ANAPARAM3,
756 RTL8187B_RTL8225_ANAPARAM3_ON);
757
758 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
759 reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
760 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
761 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));
762
763 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
764 reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
765 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
766
767 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
768 RTL818X_EEPROM_CMD_NORMAL);
769
770 res = rtl8187_cmd_reset(dev);
771 if (res)
772 return res;
773
774 rtl818x_iowrite16(priv, (__le16 *)0xFF2D, 0x0FFF);
775 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
776 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
777 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
778 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
779 reg |= RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT |
780 RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
781 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
782
783 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
784
785 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
786 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
787 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);
788
789 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
790 RTL818X_EEPROM_CMD_CONFIG);
791 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
792 rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
793 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
794 RTL818X_EEPROM_CMD_NORMAL);
795
796 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
797 for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
798 rtl818x_iowrite8_idx(priv,
799 (u8 *)(uintptr_t)
800 (rtl8187b_reg_table[i][0] | 0xFF00),
801 rtl8187b_reg_table[i][1],
802 rtl8187b_reg_table[i][2]);
803 }
804
805 rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
806 rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
807
808 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
809 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
810 rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);
811
812 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);
813
814 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
815
816 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
817 RTL818X_EEPROM_CMD_CONFIG);
818 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
819 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
820 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
821 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
822 RTL818X_EEPROM_CMD_NORMAL);
823
824 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
825 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
826 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
827 msleep(100);
828
829 priv->rf->init(dev);
830
831 reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
832 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
833 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
834
835 rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
836 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
837 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
838 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
839 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
840 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
841 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
842
843 reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
844 rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
845 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
846 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
847 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
848 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
849 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
850 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
851 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
852 rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
853 rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
854 rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
855 rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);
856
857 rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);
858
859 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);
860
861 priv->slot_time = 0x9;
862 priv->aifsn[0] = 2; /* AIFSN[AC_VO] */
863 priv->aifsn[1] = 2; /* AIFSN[AC_VI] */
864 priv->aifsn[2] = 7; /* AIFSN[AC_BK] */
865 priv->aifsn[3] = 3; /* AIFSN[AC_BE] */
866 rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0);
867
868 /* ENEDCA flag must always be set, transmit issues? */
869 rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_ENEDCA);
870
871 return 0;
872 }
873
874 static void rtl8187_work(struct work_struct *work)
875 {
876 /* The RTL8187 returns the retry count through register 0xFFFA. In
877 * addition, it appears to be a cumulative retry count, not the
878 * value for the current TX packet. When multiple TX entries are
879 * queued, the retry count will be valid for the last one in the queue.
880 * The "error" should not matter for purposes of rate setting. */
881 struct rtl8187_priv *priv = container_of(work, struct rtl8187_priv,
882 work.work);
883 struct ieee80211_tx_info *info;
884 struct ieee80211_hw *dev = priv->dev;
885 static u16 retry;
886 u16 tmp;
887
888 mutex_lock(&priv->conf_mutex);
889 tmp = rtl818x_ioread16(priv, (__le16 *)0xFFFA);
890 while (skb_queue_len(&priv->b_tx_status.queue) > 0) {
891 struct sk_buff *old_skb;
892
893 old_skb = skb_dequeue(&priv->b_tx_status.queue);
894 info = IEEE80211_SKB_CB(old_skb);
895 info->status.rates[0].count = tmp - retry + 1;
896 ieee80211_tx_status_irqsafe(dev, old_skb);
897 }
898 retry = tmp;
899 mutex_unlock(&priv->conf_mutex);
900 }
901
902 static int rtl8187_start(struct ieee80211_hw *dev)
903 {
904 struct rtl8187_priv *priv = dev->priv;
905 u32 reg;
906 int ret;
907
908 mutex_lock(&priv->conf_mutex);
909
910 ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
911 rtl8187b_init_hw(dev);
912 if (ret)
913 goto rtl8187_start_exit;
914
915 init_usb_anchor(&priv->anchored);
916 priv->dev = dev;
917
918 if (priv->is_rtl8187b) {
919 reg = RTL818X_RX_CONF_MGMT |
920 RTL818X_RX_CONF_DATA |
921 RTL818X_RX_CONF_BROADCAST |
922 RTL818X_RX_CONF_NICMAC |
923 RTL818X_RX_CONF_BSSID |
924 (7 << 13 /* RX FIFO threshold NONE */) |
925 (7 << 10 /* MAX RX DMA */) |
926 RTL818X_RX_CONF_RX_AUTORESETPHY |
927 RTL818X_RX_CONF_ONLYERLPKT |
928 RTL818X_RX_CONF_MULTICAST;
929 priv->rx_conf = reg;
930 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
931
932 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
933 RTL818X_TX_CONF_HW_SEQNUM |
934 RTL818X_TX_CONF_DISREQQSIZE |
935 (7 << 8 /* short retry limit */) |
936 (7 << 0 /* long retry limit */) |
937 (7 << 21 /* MAX TX DMA */));
938 rtl8187_init_urbs(dev);
939 rtl8187b_init_status_urb(dev);
940 goto rtl8187_start_exit;
941 }
942
943 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
944
945 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
946 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
947
948 rtl8187_init_urbs(dev);
949
950 reg = RTL818X_RX_CONF_ONLYERLPKT |
951 RTL818X_RX_CONF_RX_AUTORESETPHY |
952 RTL818X_RX_CONF_BSSID |
953 RTL818X_RX_CONF_MGMT |
954 RTL818X_RX_CONF_DATA |
955 (7 << 13 /* RX FIFO threshold NONE */) |
956 (7 << 10 /* MAX RX DMA */) |
957 RTL818X_RX_CONF_BROADCAST |
958 RTL818X_RX_CONF_NICMAC;
959
960 priv->rx_conf = reg;
961 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
962
963 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
964 reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
965 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
966 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
967
968 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
969 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
970 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
971 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
972 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
973
974 reg = RTL818X_TX_CONF_CW_MIN |
975 (7 << 21 /* MAX TX DMA */) |
976 RTL818X_TX_CONF_NO_ICV;
977 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
978
979 reg = rtl818x_ioread8(priv, &priv->map->CMD);
980 reg |= RTL818X_CMD_TX_ENABLE;
981 reg |= RTL818X_CMD_RX_ENABLE;
982 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
983 INIT_DELAYED_WORK(&priv->work, rtl8187_work);
984
985 rtl8187_start_exit:
986 mutex_unlock(&priv->conf_mutex);
987 return ret;
988 }
989
990 static void rtl8187_stop(struct ieee80211_hw *dev)
991 {
992 struct rtl8187_priv *priv = dev->priv;
993 struct sk_buff *skb;
994 u32 reg;
995
996 mutex_lock(&priv->conf_mutex);
997 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
998
999 reg = rtl818x_ioread8(priv, &priv->map->CMD);
1000 reg &= ~RTL818X_CMD_TX_ENABLE;
1001 reg &= ~RTL818X_CMD_RX_ENABLE;
1002 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
1003
1004 priv->rf->stop(dev);
1005
1006 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1007 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
1008 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
1009 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1010
1011 while ((skb = skb_dequeue(&priv->b_tx_status.queue)))
1012 dev_kfree_skb_any(skb);
1013
1014 usb_kill_anchored_urbs(&priv->anchored);
1015 mutex_unlock(&priv->conf_mutex);
1016
1017 if (!priv->is_rtl8187b)
1018 cancel_delayed_work_sync(&priv->work);
1019 }
1020
1021 static int rtl8187_add_interface(struct ieee80211_hw *dev,
1022 struct ieee80211_vif *vif)
1023 {
1024 struct rtl8187_priv *priv = dev->priv;
1025 int i;
1026 int ret = -EOPNOTSUPP;
1027
1028 mutex_lock(&priv->conf_mutex);
1029 if (priv->vif)
1030 goto exit;
1031
1032 switch (vif->type) {
1033 case NL80211_IFTYPE_STATION:
1034 break;
1035 default:
1036 goto exit;
1037 }
1038
1039 ret = 0;
1040 priv->vif = vif;
1041
1042 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1043 for (i = 0; i < ETH_ALEN; i++)
1044 rtl818x_iowrite8(priv, &priv->map->MAC[i],
1045 ((u8 *)vif->addr)[i]);
1046 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1047
1048 exit:
1049 mutex_unlock(&priv->conf_mutex);
1050 return ret;
1051 }
1052
1053 static void rtl8187_remove_interface(struct ieee80211_hw *dev,
1054 struct ieee80211_vif *vif)
1055 {
1056 struct rtl8187_priv *priv = dev->priv;
1057 mutex_lock(&priv->conf_mutex);
1058 priv->vif = NULL;
1059 mutex_unlock(&priv->conf_mutex);
1060 }
1061
1062 static int rtl8187_config(struct ieee80211_hw *dev, u32 changed)
1063 {
1064 struct rtl8187_priv *priv = dev->priv;
1065 struct ieee80211_conf *conf = &dev->conf;
1066 u32 reg;
1067
1068 mutex_lock(&priv->conf_mutex);
1069 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1070 /* Enable TX loopback on MAC level to avoid TX during channel
1071 * changes, as this has be seen to causes problems and the
1072 * card will stop work until next reset
1073 */
1074 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
1075 reg | RTL818X_TX_CONF_LOOPBACK_MAC);
1076 priv->rf->set_chan(dev, conf);
1077 msleep(10);
1078 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
1079
1080 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
1081 rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
1082 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
1083 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
1084 mutex_unlock(&priv->conf_mutex);
1085 return 0;
1086 }
1087
1088 /*
1089 * With 8187B, AC_*_PARAM clashes with FEMR definition in struct rtl818x_csr for
1090 * example. Thus we have to use raw values for AC_*_PARAM register addresses.
1091 */
1092 static __le32 *rtl8187b_ac_addr[4] = {
1093 (__le32 *) 0xFFF0, /* AC_VO */
1094 (__le32 *) 0xFFF4, /* AC_VI */
1095 (__le32 *) 0xFFFC, /* AC_BK */
1096 (__le32 *) 0xFFF8, /* AC_BE */
1097 };
1098
1099 #define SIFS_TIME 0xa
1100
1101 static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot,
1102 bool use_short_preamble)
1103 {
1104 if (priv->is_rtl8187b) {
1105 u8 difs, eifs;
1106 u16 ack_timeout;
1107 int queue;
1108
1109 if (use_short_slot) {
1110 priv->slot_time = 0x9;
1111 difs = 0x1c;
1112 eifs = 0x53;
1113 } else {
1114 priv->slot_time = 0x14;
1115 difs = 0x32;
1116 eifs = 0x5b;
1117 }
1118 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
1119 rtl818x_iowrite8(priv, &priv->map->SLOT, priv->slot_time);
1120 rtl818x_iowrite8(priv, &priv->map->DIFS, difs);
1121
1122 /*
1123 * BRSR+1 on 8187B is in fact EIFS register
1124 * Value in units of 4 us
1125 */
1126 rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs);
1127
1128 /*
1129 * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout
1130 * register. In units of 4 us like eifs register
1131 * ack_timeout = ack duration + plcp + difs + preamble
1132 */
1133 ack_timeout = 112 + 48 + difs;
1134 if (use_short_preamble)
1135 ack_timeout += 72;
1136 else
1137 ack_timeout += 144;
1138 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER,
1139 DIV_ROUND_UP(ack_timeout, 4));
1140
1141 for (queue = 0; queue < 4; queue++)
1142 rtl818x_iowrite8(priv, (u8 *) rtl8187b_ac_addr[queue],
1143 priv->aifsn[queue] * priv->slot_time +
1144 SIFS_TIME);
1145 } else {
1146 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
1147 if (use_short_slot) {
1148 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
1149 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
1150 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
1151 } else {
1152 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
1153 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
1154 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
1155 }
1156 }
1157 }
1158
1159 static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
1160 struct ieee80211_vif *vif,
1161 struct ieee80211_bss_conf *info,
1162 u32 changed)
1163 {
1164 struct rtl8187_priv *priv = dev->priv;
1165 int i;
1166 u8 reg;
1167
1168 if (changed & BSS_CHANGED_BSSID) {
1169 mutex_lock(&priv->conf_mutex);
1170 for (i = 0; i < ETH_ALEN; i++)
1171 rtl818x_iowrite8(priv, &priv->map->BSSID[i],
1172 info->bssid[i]);
1173
1174 if (priv->is_rtl8187b)
1175 reg = RTL818X_MSR_ENEDCA;
1176 else
1177 reg = 0;
1178
1179 if (is_valid_ether_addr(info->bssid)) {
1180 reg |= RTL818X_MSR_INFRA;
1181 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
1182 } else {
1183 reg |= RTL818X_MSR_NO_LINK;
1184 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
1185 }
1186
1187 mutex_unlock(&priv->conf_mutex);
1188 }
1189
1190 if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE))
1191 rtl8187_conf_erp(priv, info->use_short_slot,
1192 info->use_short_preamble);
1193 }
1194
1195 static u64 rtl8187_prepare_multicast(struct ieee80211_hw *dev,
1196 int mc_count, struct dev_addr_list *mc_list)
1197 {
1198 return mc_count;
1199 }
1200
1201 static void rtl8187_configure_filter(struct ieee80211_hw *dev,
1202 unsigned int changed_flags,
1203 unsigned int *total_flags,
1204 u64 multicast)
1205 {
1206 struct rtl8187_priv *priv = dev->priv;
1207
1208 if (changed_flags & FIF_FCSFAIL)
1209 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
1210 if (changed_flags & FIF_CONTROL)
1211 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
1212 if (changed_flags & FIF_OTHER_BSS)
1213 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
1214 if (*total_flags & FIF_ALLMULTI || multicast > 0)
1215 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
1216 else
1217 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
1218
1219 *total_flags = 0;
1220
1221 if (priv->rx_conf & RTL818X_RX_CONF_FCS)
1222 *total_flags |= FIF_FCSFAIL;
1223 if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
1224 *total_flags |= FIF_CONTROL;
1225 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
1226 *total_flags |= FIF_OTHER_BSS;
1227 if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
1228 *total_flags |= FIF_ALLMULTI;
1229
1230 rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
1231 }
1232
1233 static int rtl8187_conf_tx(struct ieee80211_hw *dev, u16 queue,
1234 const struct ieee80211_tx_queue_params *params)
1235 {
1236 struct rtl8187_priv *priv = dev->priv;
1237 u8 cw_min, cw_max;
1238
1239 if (queue > 3)
1240 return -EINVAL;
1241
1242 cw_min = fls(params->cw_min);
1243 cw_max = fls(params->cw_max);
1244
1245 if (priv->is_rtl8187b) {
1246 priv->aifsn[queue] = params->aifs;
1247
1248 /*
1249 * This is the structure of AC_*_PARAM registers in 8187B:
1250 * - TXOP limit field, bit offset = 16
1251 * - ECWmax, bit offset = 12
1252 * - ECWmin, bit offset = 8
1253 * - AIFS, bit offset = 0
1254 */
1255 rtl818x_iowrite32(priv, rtl8187b_ac_addr[queue],
1256 (params->txop << 16) | (cw_max << 12) |
1257 (cw_min << 8) | (params->aifs *
1258 priv->slot_time + SIFS_TIME));
1259 } else {
1260 if (queue != 0)
1261 return -EINVAL;
1262
1263 rtl818x_iowrite8(priv, &priv->map->CW_VAL,
1264 cw_min | (cw_max << 4));
1265 }
1266 return 0;
1267 }
1268
1269 static u64 rtl8187_get_tsf(struct ieee80211_hw *dev)
1270 {
1271 struct rtl8187_priv *priv = dev->priv;
1272
1273 return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
1274 (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
1275 }
1276
1277 static const struct ieee80211_ops rtl8187_ops = {
1278 .tx = rtl8187_tx,
1279 .start = rtl8187_start,
1280 .stop = rtl8187_stop,
1281 .add_interface = rtl8187_add_interface,
1282 .remove_interface = rtl8187_remove_interface,
1283 .config = rtl8187_config,
1284 .bss_info_changed = rtl8187_bss_info_changed,
1285 .prepare_multicast = rtl8187_prepare_multicast,
1286 .configure_filter = rtl8187_configure_filter,
1287 .conf_tx = rtl8187_conf_tx,
1288 .rfkill_poll = rtl8187_rfkill_poll,
1289 .get_tsf = rtl8187_get_tsf,
1290 };
1291
1292 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
1293 {
1294 struct ieee80211_hw *dev = eeprom->data;
1295 struct rtl8187_priv *priv = dev->priv;
1296 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1297
1298 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
1299 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
1300 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
1301 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
1302 }
1303
1304 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
1305 {
1306 struct ieee80211_hw *dev = eeprom->data;
1307 struct rtl8187_priv *priv = dev->priv;
1308 u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
1309
1310 if (eeprom->reg_data_in)
1311 reg |= RTL818X_EEPROM_CMD_WRITE;
1312 if (eeprom->reg_data_out)
1313 reg |= RTL818X_EEPROM_CMD_READ;
1314 if (eeprom->reg_data_clock)
1315 reg |= RTL818X_EEPROM_CMD_CK;
1316 if (eeprom->reg_chip_select)
1317 reg |= RTL818X_EEPROM_CMD_CS;
1318
1319 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
1320 udelay(10);
1321 }
1322
1323 static int __devinit rtl8187_probe(struct usb_interface *intf,
1324 const struct usb_device_id *id)
1325 {
1326 struct usb_device *udev = interface_to_usbdev(intf);
1327 struct ieee80211_hw *dev;
1328 struct rtl8187_priv *priv;
1329 struct eeprom_93cx6 eeprom;
1330 struct ieee80211_channel *channel;
1331 const char *chip_name;
1332 u16 txpwr, reg;
1333 u16 product_id = le16_to_cpu(udev->descriptor.idProduct);
1334 int err, i;
1335
1336 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
1337 if (!dev) {
1338 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
1339 return -ENOMEM;
1340 }
1341
1342 priv = dev->priv;
1343 priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
1344
1345 /* allocate "DMA aware" buffer for register accesses */
1346 priv->io_dmabuf = kmalloc(sizeof(*priv->io_dmabuf), GFP_KERNEL);
1347 if (!priv->io_dmabuf) {
1348 err = -ENOMEM;
1349 goto err_free_dev;
1350 }
1351 mutex_init(&priv->io_mutex);
1352
1353 SET_IEEE80211_DEV(dev, &intf->dev);
1354 usb_set_intfdata(intf, dev);
1355 priv->udev = udev;
1356
1357 usb_get_dev(udev);
1358
1359 skb_queue_head_init(&priv->rx_queue);
1360
1361 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
1362 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
1363
1364 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
1365 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
1366 priv->map = (struct rtl818x_csr *)0xFF00;
1367
1368 priv->band.band = IEEE80211_BAND_2GHZ;
1369 priv->band.channels = priv->channels;
1370 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
1371 priv->band.bitrates = priv->rates;
1372 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1373 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
1374
1375
1376 dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1377 IEEE80211_HW_SIGNAL_DBM |
1378 IEEE80211_HW_RX_INCLUDES_FCS;
1379
1380 eeprom.data = dev;
1381 eeprom.register_read = rtl8187_eeprom_register_read;
1382 eeprom.register_write = rtl8187_eeprom_register_write;
1383 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1384 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1385 else
1386 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1387
1388 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1389 udelay(10);
1390
1391 eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
1392 (__le16 __force *)dev->wiphy->perm_addr, 3);
1393 if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
1394 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
1395 "generated MAC address\n");
1396 random_ether_addr(dev->wiphy->perm_addr);
1397 }
1398
1399 channel = priv->channels;
1400 for (i = 0; i < 3; i++) {
1401 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
1402 &txpwr);
1403 (*channel++).hw_value = txpwr & 0xFF;
1404 (*channel++).hw_value = txpwr >> 8;
1405 }
1406 for (i = 0; i < 2; i++) {
1407 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
1408 &txpwr);
1409 (*channel++).hw_value = txpwr & 0xFF;
1410 (*channel++).hw_value = txpwr >> 8;
1411 }
1412
1413 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
1414 &priv->txpwr_base);
1415
1416 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
1417 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
1418 /* 0 means asic B-cut, we should use SW 3 wire
1419 * bit-by-bit banging for radio. 1 means we can use
1420 * USB specific request to write radio registers */
1421 priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
1422 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
1423 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1424
1425 if (!priv->is_rtl8187b) {
1426 u32 reg32;
1427 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1428 reg32 &= RTL818X_TX_CONF_HWVER_MASK;
1429 switch (reg32) {
1430 case RTL818X_TX_CONF_R8187vD_B:
1431 /* Some RTL8187B devices have a USB ID of 0x8187
1432 * detect them here */
1433 chip_name = "RTL8187BvB(early)";
1434 priv->is_rtl8187b = 1;
1435 priv->hw_rev = RTL8187BvB;
1436 break;
1437 case RTL818X_TX_CONF_R8187vD:
1438 chip_name = "RTL8187vD";
1439 break;
1440 default:
1441 chip_name = "RTL8187vB (default)";
1442 }
1443 } else {
1444 /*
1445 * Force USB request to write radio registers for 8187B, Realtek
1446 * only uses it in their sources
1447 */
1448 /*if (priv->asic_rev == 0) {
1449 printk(KERN_WARNING "rtl8187: Forcing use of USB "
1450 "requests to write to radio registers\n");
1451 priv->asic_rev = 1;
1452 }*/
1453 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
1454 case RTL818X_R8187B_B:
1455 chip_name = "RTL8187BvB";
1456 priv->hw_rev = RTL8187BvB;
1457 break;
1458 case RTL818X_R8187B_D:
1459 chip_name = "RTL8187BvD";
1460 priv->hw_rev = RTL8187BvD;
1461 break;
1462 case RTL818X_R8187B_E:
1463 chip_name = "RTL8187BvE";
1464 priv->hw_rev = RTL8187BvE;
1465 break;
1466 default:
1467 chip_name = "RTL8187BvB (default)";
1468 priv->hw_rev = RTL8187BvB;
1469 }
1470 }
1471
1472 if (!priv->is_rtl8187b) {
1473 for (i = 0; i < 2; i++) {
1474 eeprom_93cx6_read(&eeprom,
1475 RTL8187_EEPROM_TXPWR_CHAN_6 + i,
1476 &txpwr);
1477 (*channel++).hw_value = txpwr & 0xFF;
1478 (*channel++).hw_value = txpwr >> 8;
1479 }
1480 } else {
1481 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
1482 &txpwr);
1483 (*channel++).hw_value = txpwr & 0xFF;
1484
1485 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
1486 (*channel++).hw_value = txpwr & 0xFF;
1487
1488 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
1489 (*channel++).hw_value = txpwr & 0xFF;
1490 (*channel++).hw_value = txpwr >> 8;
1491 }
1492 /* Handle the differing rfkill GPIO bit in different models */
1493 priv->rfkill_mask = RFKILL_MASK_8187_89_97;
1494 if (product_id == 0x8197 || product_id == 0x8198) {
1495 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_SELECT_GPIO, &reg);
1496 if (reg & 0xFF00)
1497 priv->rfkill_mask = RFKILL_MASK_8198;
1498 }
1499
1500 /*
1501 * XXX: Once this driver supports anything that requires
1502 * beacons it must implement IEEE80211_TX_CTL_ASSIGN_SEQ.
1503 */
1504 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1505
1506 if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
1507 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
1508 " info!\n");
1509
1510 priv->rf = rtl8187_detect_rf(dev);
1511 dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
1512 sizeof(struct rtl8187_tx_hdr) :
1513 sizeof(struct rtl8187b_tx_hdr);
1514 if (!priv->is_rtl8187b)
1515 dev->queues = 1;
1516 else
1517 dev->queues = 4;
1518
1519 err = ieee80211_register_hw(dev);
1520 if (err) {
1521 printk(KERN_ERR "rtl8187: Cannot register device\n");
1522 goto err_free_dmabuf;
1523 }
1524 mutex_init(&priv->conf_mutex);
1525 skb_queue_head_init(&priv->b_tx_status.queue);
1526
1527 printk(KERN_INFO "%s: hwaddr %pM, %s V%d + %s, rfkill mask %d\n",
1528 wiphy_name(dev->wiphy), dev->wiphy->perm_addr,
1529 chip_name, priv->asic_rev, priv->rf->name, priv->rfkill_mask);
1530
1531 #ifdef CONFIG_RTL8187_LEDS
1532 eeprom_93cx6_read(&eeprom, 0x3F, &reg);
1533 reg &= 0xFF;
1534 rtl8187_leds_init(dev, reg);
1535 #endif
1536 rtl8187_rfkill_init(dev);
1537
1538 return 0;
1539
1540 err_free_dmabuf:
1541 kfree(priv->io_dmabuf);
1542 err_free_dev:
1543 ieee80211_free_hw(dev);
1544 usb_set_intfdata(intf, NULL);
1545 usb_put_dev(udev);
1546 return err;
1547 }
1548
1549 static void __devexit rtl8187_disconnect(struct usb_interface *intf)
1550 {
1551 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1552 struct rtl8187_priv *priv;
1553
1554 if (!dev)
1555 return;
1556
1557 #ifdef CONFIG_RTL8187_LEDS
1558 rtl8187_leds_exit(dev);
1559 #endif
1560 rtl8187_rfkill_exit(dev);
1561 ieee80211_unregister_hw(dev);
1562
1563 priv = dev->priv;
1564 usb_reset_device(priv->udev);
1565 usb_put_dev(interface_to_usbdev(intf));
1566 kfree(priv->io_dmabuf);
1567 ieee80211_free_hw(dev);
1568 }
1569
1570 static struct usb_driver rtl8187_driver = {
1571 .name = KBUILD_MODNAME,
1572 .id_table = rtl8187_table,
1573 .probe = rtl8187_probe,
1574 .disconnect = __devexit_p(rtl8187_disconnect),
1575 };
1576
1577 static int __init rtl8187_init(void)
1578 {
1579 return usb_register(&rtl8187_driver);
1580 }
1581
1582 static void __exit rtl8187_exit(void)
1583 {
1584 usb_deregister(&rtl8187_driver);
1585 }
1586
1587 module_init(rtl8187_init);
1588 module_exit(rtl8187_exit);
Ubuntu Hirsute Linux kernel mirror