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WIP FPC-III support
[linux/fpc-iii.git] / drivers / net / wireless / realtek / rtl818x / rtl8187 / dev.c
blobeb68b2d3caa1212509fa9940971127b14fbdb264
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Linux device driver for RTL8187
4 *
5 * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
6 * Copyright 2007 Andrea Merello <andrea.merello@gmail.com>
7 *
8 * Based on the r8187 driver, which is:
9 * Copyright 2005 Andrea Merello <andrea.merello@gmail.com>, et al.
10 *
11 * The driver was extended to the RTL8187B in 2008 by:
12 * Herton Ronaldo Krzesinski <herton@mandriva.com.br>
13 * Hin-Tak Leung <htl10@users.sourceforge.net>
14 * Larry Finger <Larry.Finger@lwfinger.net>
15 *
16 * Magic delays and register offsets below are taken from the original
17 * r8187 driver sources. Thanks to Realtek for their support!
18 */
19
20 #include <linux/usb.h>
21 #include <linux/slab.h>
22 #include <linux/delay.h>
23 #include <linux/etherdevice.h>
24 #include <linux/eeprom_93cx6.h>
25 #include <linux/module.h>
26 #include <net/mac80211.h>
27
28 #include "rtl8187.h"
29 #include "rtl8225.h"
30 #ifdef CONFIG_RTL8187_LEDS
31 #include "leds.h"
32 #endif
33 #include "rfkill.h"
34
35 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
36 MODULE_AUTHOR("Andrea Merello <andrea.merello@gmail.com>");
37 MODULE_AUTHOR("Herton Ronaldo Krzesinski <herton@mandriva.com.br>");
38 MODULE_AUTHOR("Hin-Tak Leung <htl10@users.sourceforge.net>");
39 MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>");
40 MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
41 MODULE_LICENSE("GPL");
42
43 static const struct usb_device_id rtl8187_table[] = {
44 /* Asus */
45 {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
46 /* Belkin */
47 {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B},
48 /* Realtek */
49 {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
50 {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
51 {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
52 {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B},
53 /* Surecom */
54 {USB_DEVICE(0x0769, 0x11F2), .driver_info = DEVICE_RTL8187},
55 /* Logitech */
56 {USB_DEVICE(0x0789, 0x010C), .driver_info = DEVICE_RTL8187},
57 /* Netgear */
58 {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
59 {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
60 {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B},
61 /* HP */
62 {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
63 /* Sitecom */
64 {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
65 {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
66 {USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B},
67 /* Sphairon Access Systems GmbH */
68 {USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187},
69 /* Dick Smith Electronics */
70 {USB_DEVICE(0x1371, 0x9401), .driver_info = DEVICE_RTL8187},
71 /* Abocom */
72 {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187},
73 /* Qcom */
74 {USB_DEVICE(0x18E8, 0x6232), .driver_info = DEVICE_RTL8187},
75 /* AirLive */
76 {USB_DEVICE(0x1b75, 0x8187), .driver_info = DEVICE_RTL8187},
77 /* Linksys */
78 {USB_DEVICE(0x1737, 0x0073), .driver_info = DEVICE_RTL8187B},
79 {}
80 };
81
82 MODULE_DEVICE_TABLE(usb, rtl8187_table);
83
84 static const struct ieee80211_rate rtl818x_rates[] = {
85 { .bitrate = 10, .hw_value = 0, },
86 { .bitrate = 20, .hw_value = 1, },
87 { .bitrate = 55, .hw_value = 2, },
88 { .bitrate = 110, .hw_value = 3, },
89 { .bitrate = 60, .hw_value = 4, },
90 { .bitrate = 90, .hw_value = 5, },
91 { .bitrate = 120, .hw_value = 6, },
92 { .bitrate = 180, .hw_value = 7, },
93 { .bitrate = 240, .hw_value = 8, },
94 { .bitrate = 360, .hw_value = 9, },
95 { .bitrate = 480, .hw_value = 10, },
96 { .bitrate = 540, .hw_value = 11, },
97 };
98
99 static const struct ieee80211_channel rtl818x_channels[] = {
100 { .center_freq = 2412 },
101 { .center_freq = 2417 },
102 { .center_freq = 2422 },
103 { .center_freq = 2427 },
104 { .center_freq = 2432 },
105 { .center_freq = 2437 },
106 { .center_freq = 2442 },
107 { .center_freq = 2447 },
108 { .center_freq = 2452 },
109 { .center_freq = 2457 },
110 { .center_freq = 2462 },
111 { .center_freq = 2467 },
112 { .center_freq = 2472 },
113 { .center_freq = 2484 },
114 };
115
116 static void rtl8187_iowrite_async_cb(struct urb *urb)
117 {
118 kfree(urb->context);
119 }
120
121 static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
122 void *data, u16 len)
123 {
124 struct usb_ctrlrequest *dr;
125 struct urb *urb;
126 struct rtl8187_async_write_data {
127 u8 data[4];
128 struct usb_ctrlrequest dr;
129 } *buf;
130 int rc;
131
132 buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
133 if (!buf)
134 return;
135
136 urb = usb_alloc_urb(0, GFP_ATOMIC);
137 if (!urb) {
138 kfree(buf);
139 return;
140 }
141
142 dr = &buf->dr;
143
144 dr->bRequestType = RTL8187_REQT_WRITE;
145 dr->bRequest = RTL8187_REQ_SET_REG;
146 dr->wValue = addr;
147 dr->wIndex = 0;
148 dr->wLength = cpu_to_le16(len);
149
150 memcpy(buf, data, len);
151
152 usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
153 (unsigned char *)dr, buf, len,
154 rtl8187_iowrite_async_cb, buf);
155 usb_anchor_urb(urb, &priv->anchored);
156 rc = usb_submit_urb(urb, GFP_ATOMIC);
157 if (rc < 0) {
158 kfree(buf);
159 usb_unanchor_urb(urb);
160 }
161 usb_free_urb(urb);
162 }
163
164 static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
165 __le32 *addr, u32 val)
166 {
167 __le32 buf = cpu_to_le32(val);
168
169 rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
170 &buf, sizeof(buf));
171 }
172
173 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
174 {
175 struct rtl8187_priv *priv = dev->priv;
176
177 data <<= 8;
178 data |= addr | 0x80;
179
180 rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
181 rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
182 rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
183 rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
184 }
185
186 static void rtl8187_tx_cb(struct urb *urb)
187 {
188 struct sk_buff *skb = (struct sk_buff *)urb->context;
189 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
190 struct ieee80211_hw *hw = info->rate_driver_data[0];
191 struct rtl8187_priv *priv = hw->priv;
192
193 skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
194 sizeof(struct rtl8187_tx_hdr));
195 ieee80211_tx_info_clear_status(info);
196
197 if (!(urb->status) && !(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
198 if (priv->is_rtl8187b) {
199 skb_queue_tail(&priv->b_tx_status.queue, skb);
200
201 /* queue is "full", discard last items */
202 while (skb_queue_len(&priv->b_tx_status.queue) > 5) {
203 struct sk_buff *old_skb;
204
205 dev_dbg(&priv->udev->dev,
206 "transmit status queue full\n");
207
208 old_skb = skb_dequeue(&priv->b_tx_status.queue);
209 ieee80211_tx_status_irqsafe(hw, old_skb);
210 }
211 return;
212 } else {
213 info->flags |= IEEE80211_TX_STAT_ACK;
214 }
215 }
216 if (priv->is_rtl8187b)
217 ieee80211_tx_status_irqsafe(hw, skb);
218 else {
219 /* Retry information for the RTI8187 is only available by
220 * reading a register in the device. We are in interrupt mode
221 * here, thus queue the skb and finish on a work queue. */
222 skb_queue_tail(&priv->b_tx_status.queue, skb);
223 ieee80211_queue_delayed_work(hw, &priv->work, 0);
224 }
225 }
226
227 static void rtl8187_tx(struct ieee80211_hw *dev,
228 struct ieee80211_tx_control *control,
229 struct sk_buff *skb)
230 {
231 struct rtl8187_priv *priv = dev->priv;
232 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
233 struct ieee80211_hdr *tx_hdr = (struct ieee80211_hdr *)(skb->data);
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;
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(tx_hdr->frame_control))
252 flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
253
254 /* HW will perform RTS-CTS when only RTS flags is set.
255 * HW will perform CTS-to-self when both RTS and CTS flags are set.
256 * RTS rate and RTS duration will be used also for CTS-to-self.
257 */
258 if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
259 flags |= RTL818X_TX_DESC_FLAG_RTS;
260 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
261 rts_dur = ieee80211_rts_duration(dev, priv->vif,
262 skb->len, info);
263 } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
264 flags |= RTL818X_TX_DESC_FLAG_RTS | RTL818X_TX_DESC_FLAG_CTS;
265 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
266 rts_dur = ieee80211_ctstoself_duration(dev, priv->vif,
267 skb->len, info);
268 }
269
270 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
271 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
272 priv->seqno += 0x10;
273 tx_hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
274 tx_hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
275 }
276
277 if (!priv->is_rtl8187b) {
278 struct rtl8187_tx_hdr *hdr = skb_push(skb, sizeof(*hdr));
279 hdr->flags = cpu_to_le32(flags);
280 hdr->len = 0;
281 hdr->rts_duration = rts_dur;
282 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
283 buf = hdr;
284
285 ep = 2;
286 } else {
287 /* fc needs to be calculated before skb_push() */
288 unsigned int epmap[4] = { 6, 7, 5, 4 };
289 u16 fc = le16_to_cpu(tx_hdr->frame_control);
290
291 struct rtl8187b_tx_hdr *hdr = skb_push(skb, sizeof(*hdr));
292 struct ieee80211_rate *txrate =
293 ieee80211_get_tx_rate(dev, info);
294 memset(hdr, 0, sizeof(*hdr));
295 hdr->flags = cpu_to_le32(flags);
296 hdr->rts_duration = rts_dur;
297 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
298 hdr->tx_duration =
299 ieee80211_generic_frame_duration(dev, priv->vif,
300 info->band,
301 skb->len, txrate);
302 buf = hdr;
303
304 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
305 ep = 12;
306 else
307 ep = epmap[skb_get_queue_mapping(skb)];
308 }
309
310 info->rate_driver_data[0] = dev;
311 info->rate_driver_data[1] = urb;
312
313 usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
314 buf, skb->len, rtl8187_tx_cb, skb);
315 urb->transfer_flags |= URB_ZERO_PACKET;
316 usb_anchor_urb(urb, &priv->anchored);
317 rc = usb_submit_urb(urb, GFP_ATOMIC);
318 if (rc < 0) {
319 usb_unanchor_urb(urb);
320 kfree_skb(skb);
321 }
322 usb_free_urb(urb);
323 }
324
325 static void rtl8187_rx_cb(struct urb *urb)
326 {
327 struct sk_buff *skb = (struct sk_buff *)urb->context;
328 struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
329 struct ieee80211_hw *dev = info->dev;
330 struct rtl8187_priv *priv = dev->priv;
331 struct ieee80211_rx_status rx_status = { 0 };
332 int rate, signal;
333 u32 flags;
334 unsigned long f;
335
336 spin_lock_irqsave(&priv->rx_queue.lock, f);
337 __skb_unlink(skb, &priv->rx_queue);
338 spin_unlock_irqrestore(&priv->rx_queue.lock, f);
339 skb_put(skb, urb->actual_length);
340
341 if (unlikely(urb->status)) {
342 dev_kfree_skb_irq(skb);
343 return;
344 }
345
346 if (!priv->is_rtl8187b) {
347 struct rtl8187_rx_hdr *hdr =
348 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
349 flags = le32_to_cpu(hdr->flags);
350 /* As with the RTL8187B below, the AGC is used to calculate
351 * signal strength. In this case, the scaling
352 * constants are derived from the output of p54usb.
353 */
354 signal = -4 - ((27 * hdr->agc) >> 6);
355 rx_status.antenna = (hdr->signal >> 7) & 1;
356 rx_status.mactime = le64_to_cpu(hdr->mac_time);
357 } else {
358 struct rtl8187b_rx_hdr *hdr =
359 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
360 /* The Realtek datasheet for the RTL8187B shows that the RX
361 * header contains the following quantities: signal quality,
362 * RSSI, AGC, the received power in dB, and the measured SNR.
363 * In testing, none of these quantities show qualitative
364 * agreement with AP signal strength, except for the AGC,
365 * which is inversely proportional to the strength of the
366 * signal. In the following, the signal strength
367 * is derived from the AGC. The arbitrary scaling constants
368 * are chosen to make the results close to the values obtained
369 * for a BCM4312 using b43 as the driver. The noise is ignored
370 * for now.
371 */
372 flags = le32_to_cpu(hdr->flags);
373 signal = 14 - hdr->agc / 2;
374 rx_status.antenna = (hdr->rssi >> 7) & 1;
375 rx_status.mactime = le64_to_cpu(hdr->mac_time);
376 }
377
378 rx_status.signal = signal;
379 priv->signal = signal;
380 rate = (flags >> 20) & 0xF;
381 skb_trim(skb, flags & 0x0FFF);
382 rx_status.rate_idx = rate;
383 rx_status.freq = dev->conf.chandef.chan->center_freq;
384 rx_status.band = dev->conf.chandef.chan->band;
385 rx_status.flag |= RX_FLAG_MACTIME_START;
386 if (flags & RTL818X_RX_DESC_FLAG_SPLCP)
387 rx_status.enc_flags |= RX_ENC_FLAG_SHORTPRE;
388 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
389 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
390 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
391 ieee80211_rx_irqsafe(dev, skb);
392
393 skb = dev_alloc_skb(RTL8187_MAX_RX);
394 if (unlikely(!skb)) {
395 /* TODO check rx queue length and refill *somewhere* */
396 return;
397 }
398
399 info = (struct rtl8187_rx_info *)skb->cb;
400 info->urb = urb;
401 info->dev = dev;
402 urb->transfer_buffer = skb_tail_pointer(skb);
403 urb->context = skb;
404 skb_queue_tail(&priv->rx_queue, skb);
405
406 usb_anchor_urb(urb, &priv->anchored);
407 if (usb_submit_urb(urb, GFP_ATOMIC)) {
408 usb_unanchor_urb(urb);
409 skb_unlink(skb, &priv->rx_queue);
410 dev_kfree_skb_irq(skb);
411 }
412 }
413
414 static int rtl8187_init_urbs(struct ieee80211_hw *dev)
415 {
416 struct rtl8187_priv *priv = dev->priv;
417 struct urb *entry = NULL;
418 struct sk_buff *skb;
419 struct rtl8187_rx_info *info;
420 int ret = 0;
421
422 while (skb_queue_len(&priv->rx_queue) < 32) {
423 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
424 if (!skb) {
425 ret = -ENOMEM;
426 goto err;
427 }
428 entry = usb_alloc_urb(0, GFP_KERNEL);
429 if (!entry) {
430 ret = -ENOMEM;
431 goto err;
432 }
433 usb_fill_bulk_urb(entry, priv->udev,
434 usb_rcvbulkpipe(priv->udev,
435 priv->is_rtl8187b ? 3 : 1),
436 skb_tail_pointer(skb),
437 RTL8187_MAX_RX, rtl8187_rx_cb, skb);
438 info = (struct rtl8187_rx_info *)skb->cb;
439 info->urb = entry;
440 info->dev = dev;
441 skb_queue_tail(&priv->rx_queue, skb);
442 usb_anchor_urb(entry, &priv->anchored);
443 ret = usb_submit_urb(entry, GFP_KERNEL);
444 if (ret) {
445 skb_unlink(skb, &priv->rx_queue);
446 usb_unanchor_urb(entry);
447 usb_put_urb(entry);
448 goto err;
449 }
450 usb_put_urb(entry);
451 }
452 return ret;
453
454 err:
455 kfree_skb(skb);
456 usb_kill_anchored_urbs(&priv->anchored);
457 return ret;
458 }
459
460 static void rtl8187b_status_cb(struct urb *urb)
461 {
462 struct ieee80211_hw *hw = (struct ieee80211_hw *)urb->context;
463 struct rtl8187_priv *priv = hw->priv;
464 u64 val;
465 unsigned int cmd_type;
466
467 if (unlikely(urb->status))
468 return;
469
470 /*
471 * Read from status buffer:
472 *
473 * bits [30:31] = cmd type:
474 * - 0 indicates tx beacon interrupt
475 * - 1 indicates tx close descriptor
476 *
477 * In the case of tx beacon interrupt:
478 * [0:9] = Last Beacon CW
479 * [10:29] = reserved
480 * [30:31] = 00b
481 * [32:63] = Last Beacon TSF
482 *
483 * If it's tx close descriptor:
484 * [0:7] = Packet Retry Count
485 * [8:14] = RTS Retry Count
486 * [15] = TOK
487 * [16:27] = Sequence No
488 * [28] = LS
489 * [29] = FS
490 * [30:31] = 01b
491 * [32:47] = unused (reserved?)
492 * [48:63] = MAC Used Time
493 */
494 val = le64_to_cpu(priv->b_tx_status.buf);
495
496 cmd_type = (val >> 30) & 0x3;
497 if (cmd_type == 1) {
498 unsigned int pkt_rc, seq_no;
499 bool tok;
500 struct sk_buff *skb, *iter;
501 struct ieee80211_hdr *ieee80211hdr;
502 unsigned long flags;
503
504 pkt_rc = val & 0xFF;
505 tok = val & (1 << 15);
506 seq_no = (val >> 16) & 0xFFF;
507
508 spin_lock_irqsave(&priv->b_tx_status.queue.lock, flags);
509 skb = NULL;
510 skb_queue_reverse_walk(&priv->b_tx_status.queue, iter) {
511 ieee80211hdr = (struct ieee80211_hdr *)iter->data;
512
513 /*
514 * While testing, it was discovered that the seq_no
515 * doesn't actually contains the sequence number.
516 * Instead of returning just the 12 bits of sequence
517 * number, hardware is returning entire sequence control
518 * (fragment number plus sequence number) in a 12 bit
519 * only field overflowing after some time. As a
520 * workaround, just consider the lower bits, and expect
521 * it's unlikely we wrongly ack some sent data
522 */
523 if ((le16_to_cpu(ieee80211hdr->seq_ctrl)
524 & 0xFFF) == seq_no) {
525 skb = iter;
526 break;
527 }
528 }
529 if (skb) {
530 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
531
532 __skb_unlink(skb, &priv->b_tx_status.queue);
533 if (tok)
534 info->flags |= IEEE80211_TX_STAT_ACK;
535 info->status.rates[0].count = pkt_rc + 1;
536
537 ieee80211_tx_status_irqsafe(hw, skb);
538 }
539 spin_unlock_irqrestore(&priv->b_tx_status.queue.lock, flags);
540 }
541
542 usb_anchor_urb(urb, &priv->anchored);
543 if (usb_submit_urb(urb, GFP_ATOMIC))
544 usb_unanchor_urb(urb);
545 }
546
547 static int rtl8187b_init_status_urb(struct ieee80211_hw *dev)
548 {
549 struct rtl8187_priv *priv = dev->priv;
550 struct urb *entry;
551 int ret = 0;
552
553 entry = usb_alloc_urb(0, GFP_KERNEL);
554 if (!entry)
555 return -ENOMEM;
556
557 usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 9),
558 &priv->b_tx_status.buf, sizeof(priv->b_tx_status.buf),
559 rtl8187b_status_cb, dev);
560
561 usb_anchor_urb(entry, &priv->anchored);
562 ret = usb_submit_urb(entry, GFP_KERNEL);
563 if (ret)
564 usb_unanchor_urb(entry);
565 usb_free_urb(entry);
566
567 return ret;
568 }
569
570 static void rtl8187_set_anaparam(struct rtl8187_priv *priv, bool rfon)
571 {
572 u32 anaparam, anaparam2;
573 u8 anaparam3, reg;
574
575 if (!priv->is_rtl8187b) {
576 if (rfon) {
577 anaparam = RTL8187_RTL8225_ANAPARAM_ON;
578 anaparam2 = RTL8187_RTL8225_ANAPARAM2_ON;
579 } else {
580 anaparam = RTL8187_RTL8225_ANAPARAM_OFF;
581 anaparam2 = RTL8187_RTL8225_ANAPARAM2_OFF;
582 }
583 } else {
584 if (rfon) {
585 anaparam = RTL8187B_RTL8225_ANAPARAM_ON;
586 anaparam2 = RTL8187B_RTL8225_ANAPARAM2_ON;
587 anaparam3 = RTL8187B_RTL8225_ANAPARAM3_ON;
588 } else {
589 anaparam = RTL8187B_RTL8225_ANAPARAM_OFF;
590 anaparam2 = RTL8187B_RTL8225_ANAPARAM2_OFF;
591 anaparam3 = RTL8187B_RTL8225_ANAPARAM3_OFF;
592 }
593 }
594
595 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
596 RTL818X_EEPROM_CMD_CONFIG);
597 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
598 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
599 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
600 rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
601 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, anaparam2);
602 if (priv->is_rtl8187b)
603 rtl818x_iowrite8(priv, &priv->map->ANAPARAM3A, anaparam3);
604 reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
605 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
606 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
607 RTL818X_EEPROM_CMD_NORMAL);
608 }
609
610 static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
611 {
612 struct rtl8187_priv *priv = dev->priv;
613 u8 reg;
614 int i;
615
616 reg = rtl818x_ioread8(priv, &priv->map->CMD);
617 reg &= (1 << 1);
618 reg |= RTL818X_CMD_RESET;
619 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
620
621 i = 10;
622 do {
623 msleep(2);
624 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
625 RTL818X_CMD_RESET))
626 break;
627 } while (--i);
628
629 if (!i) {
630 wiphy_err(dev->wiphy, "Reset timeout!\n");
631 return -ETIMEDOUT;
632 }
633
634 /* reload registers from eeprom */
635 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
636
637 i = 10;
638 do {
639 msleep(4);
640 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
641 RTL818X_EEPROM_CMD_CONFIG))
642 break;
643 } while (--i);
644
645 if (!i) {
646 wiphy_err(dev->wiphy, "eeprom reset timeout!\n");
647 return -ETIMEDOUT;
648 }
649
650 return 0;
651 }
652
653 static int rtl8187_init_hw(struct ieee80211_hw *dev)
654 {
655 struct rtl8187_priv *priv = dev->priv;
656 u8 reg;
657 int res;
658
659 /* reset */
660 rtl8187_set_anaparam(priv, true);
661
662 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
663
664 msleep(200);
665 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
666 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
667 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
668 msleep(200);
669
670 res = rtl8187_cmd_reset(dev);
671 if (res)
672 return res;
673
674 rtl8187_set_anaparam(priv, true);
675
676 /* setup card */
677 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
678 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0);
679
680 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
681 rtl818x_iowrite8(priv, &priv->map->GPIO0, 1);
682 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
683
684 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
685
686 rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
687 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
688 reg &= 0x3F;
689 reg |= 0x80;
690 rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
691
692 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
693
694 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
695 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
696 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0);
697
698 // TODO: set RESP_RATE and BRSR properly
699 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
700 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
701
702 /* host_usb_init */
703 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
704 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0);
705 reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
706 rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
707 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
708 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0x20);
709 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
710 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
711 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
712 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
713 msleep(100);
714
715 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
716 rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
717 rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
718 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
719 RTL818X_EEPROM_CMD_CONFIG);
720 rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
721 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
722 RTL818X_EEPROM_CMD_NORMAL);
723 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
724 msleep(100);
725
726 priv->rf->init(dev);
727
728 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
729 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
730 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
731 rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
732 rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
733 rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
734 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
735
736 return 0;
737 }
738
739 static const u8 rtl8187b_reg_table[][3] = {
740 {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
741 {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
742 {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
743 {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},
744
745 {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
746 {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
747 {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1},
748 {0xF2, 0x02, 1}, {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1},
749 {0xF6, 0x06, 1}, {0xF7, 0x07, 1}, {0xF8, 0x08, 1},
750
751 {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
752 {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
753 {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
754 {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
755 {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
756 {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
757 {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2},
758
759 {0x5B, 0x40, 0}, {0x84, 0x88, 0}, {0x85, 0x24, 0}, {0x88, 0x54, 0},
760 {0x8B, 0xB8, 0}, {0x8C, 0x07, 0}, {0x8D, 0x00, 0}, {0x94, 0x1B, 0},
761 {0x95, 0x12, 0}, {0x96, 0x00, 0}, {0x97, 0x06, 0}, {0x9D, 0x1A, 0},
762 {0x9F, 0x10, 0}, {0xB4, 0x22, 0}, {0xBE, 0x80, 0}, {0xDB, 0x00, 0},
763 {0xEE, 0x00, 0}, {0x4C, 0x00, 2},
764
765 {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0}, {0x8E, 0x08, 0},
766 {0x8F, 0x00, 0}
767 };
768
769 static int rtl8187b_init_hw(struct ieee80211_hw *dev)
770 {
771 struct rtl8187_priv *priv = dev->priv;
772 int res, i;
773 u8 reg;
774
775 rtl8187_set_anaparam(priv, true);
776
777 /* Reset PLL sequence on 8187B. Realtek note: reduces power
778 * consumption about 30 mA */
779 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
780 reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
781 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
782 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));
783
784 res = rtl8187_cmd_reset(dev);
785 if (res)
786 return res;
787
788 rtl8187_set_anaparam(priv, true);
789
790 /* BRSR (Basic Rate Set Register) on 8187B looks to be the same as
791 * RESP_RATE on 8187L in Realtek sources: each bit should be each
792 * one of the 12 rates, all are enabled */
793 rtl818x_iowrite16(priv, (__le16 *)0xFF34, 0x0FFF);
794
795 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
796 reg |= RTL818X_CW_CONF_PERPACKET_RETRY;
797 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
798
799 /* Auto Rate Fallback Register (ARFR): 1M-54M setting */
800 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
801 rtl818x_iowrite8_idx(priv, (u8 *)0xFFE2, 0x00, 1);
802
803 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);
804
805 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
806 RTL818X_EEPROM_CMD_CONFIG);
807 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
808 rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
809 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
810 RTL818X_EEPROM_CMD_NORMAL);
811
812 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
813 for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
814 rtl818x_iowrite8_idx(priv,
815 (u8 *)(uintptr_t)
816 (rtl8187b_reg_table[i][0] | 0xFF00),
817 rtl8187b_reg_table[i][1],
818 rtl8187b_reg_table[i][2]);
819 }
820
821 rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
822 rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
823
824 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
825 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
826 rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);
827
828 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);
829
830 /* RFSW_CTRL register */
831 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
832
833 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
834 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
835 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
836 msleep(100);
837
838 priv->rf->init(dev);
839
840 reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
841 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
842 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
843
844 rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
845 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
846 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
847 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
848 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
849 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
850 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
851
852 reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
853 rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
854 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
855 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
856 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
857 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
858 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
859 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
860 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
861 rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
862 rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
863 rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
864 rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);
865
866 rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);
867
868 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);
869
870 priv->slot_time = 0x9;
871 priv->aifsn[0] = 2; /* AIFSN[AC_VO] */
872 priv->aifsn[1] = 2; /* AIFSN[AC_VI] */
873 priv->aifsn[2] = 7; /* AIFSN[AC_BK] */
874 priv->aifsn[3] = 3; /* AIFSN[AC_BE] */
875 rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0);
876
877 /* ENEDCA flag must always be set, transmit issues? */
878 rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_ENEDCA);
879
880 return 0;
881 }
882
883 static void rtl8187_work(struct work_struct *work)
884 {
885 /* The RTL8187 returns the retry count through register 0xFFFA. In
886 * addition, it appears to be a cumulative retry count, not the
887 * value for the current TX packet. When multiple TX entries are
888 * waiting in the queue, the retry count will be the total for all.
889 * The "error" may matter for purposes of rate setting, but there is
890 * no other choice with this hardware.
891 */
892 struct rtl8187_priv *priv = container_of(work, struct rtl8187_priv,
893 work.work);
894 struct ieee80211_tx_info *info;
895 struct ieee80211_hw *dev = priv->dev;
896 static u16 retry;
897 u16 tmp;
898 u16 avg_retry;
899 int length;
900
901 mutex_lock(&priv->conf_mutex);
902 tmp = rtl818x_ioread16(priv, (__le16 *)0xFFFA);
903 length = skb_queue_len(&priv->b_tx_status.queue);
904 if (unlikely(!length))
905 length = 1;
906 if (unlikely(tmp < retry))
907 tmp = retry;
908 avg_retry = (tmp - retry) / length;
909 while (skb_queue_len(&priv->b_tx_status.queue) > 0) {
910 struct sk_buff *old_skb;
911
912 old_skb = skb_dequeue(&priv->b_tx_status.queue);
913 info = IEEE80211_SKB_CB(old_skb);
914 info->status.rates[0].count = avg_retry + 1;
915 if (info->status.rates[0].count > RETRY_COUNT)
916 info->flags &= ~IEEE80211_TX_STAT_ACK;
917 ieee80211_tx_status_irqsafe(dev, old_skb);
918 }
919 retry = tmp;
920 mutex_unlock(&priv->conf_mutex);
921 }
922
923 static int rtl8187_start(struct ieee80211_hw *dev)
924 {
925 struct rtl8187_priv *priv = dev->priv;
926 u32 reg;
927 int ret;
928
929 mutex_lock(&priv->conf_mutex);
930
931 ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
932 rtl8187b_init_hw(dev);
933 if (ret)
934 goto rtl8187_start_exit;
935
936 init_usb_anchor(&priv->anchored);
937 priv->dev = dev;
938
939 if (priv->is_rtl8187b) {
940 reg = RTL818X_RX_CONF_MGMT |
941 RTL818X_RX_CONF_DATA |
942 RTL818X_RX_CONF_BROADCAST |
943 RTL818X_RX_CONF_NICMAC |
944 RTL818X_RX_CONF_BSSID |
945 (7 << 13 /* RX FIFO threshold NONE */) |
946 (7 << 10 /* MAX RX DMA */) |
947 RTL818X_RX_CONF_RX_AUTORESETPHY |
948 RTL818X_RX_CONF_ONLYERLPKT;
949 priv->rx_conf = reg;
950 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
951
952 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
953 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN;
954 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL;
955 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
956 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
957
958 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
959 RTL818X_TX_CONF_HW_SEQNUM |
960 RTL818X_TX_CONF_DISREQQSIZE |
961 (RETRY_COUNT << 8 /* short retry limit */) |
962 (RETRY_COUNT << 0 /* long retry limit */) |
963 (7 << 21 /* MAX TX DMA */));
964 ret = rtl8187_init_urbs(dev);
965 if (ret)
966 goto rtl8187_start_exit;
967 ret = rtl8187b_init_status_urb(dev);
968 if (ret)
969 usb_kill_anchored_urbs(&priv->anchored);
970 goto rtl8187_start_exit;
971 }
972
973 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
974
975 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
976 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
977
978 ret = rtl8187_init_urbs(dev);
979 if (ret)
980 goto rtl8187_start_exit;
981
982 reg = RTL818X_RX_CONF_ONLYERLPKT |
983 RTL818X_RX_CONF_RX_AUTORESETPHY |
984 RTL818X_RX_CONF_BSSID |
985 RTL818X_RX_CONF_MGMT |
986 RTL818X_RX_CONF_DATA |
987 (7 << 13 /* RX FIFO threshold NONE */) |
988 (7 << 10 /* MAX RX DMA */) |
989 RTL818X_RX_CONF_BROADCAST |
990 RTL818X_RX_CONF_NICMAC;
991
992 priv->rx_conf = reg;
993 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
994
995 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
996 reg &= ~RTL818X_CW_CONF_PERPACKET_CW;
997 reg |= RTL818X_CW_CONF_PERPACKET_RETRY;
998 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
999
1000 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
1001 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN;
1002 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL;
1003 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
1004 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
1005
1006 reg = RTL818X_TX_CONF_CW_MIN |
1007 (7 << 21 /* MAX TX DMA */) |
1008 RTL818X_TX_CONF_NO_ICV;
1009 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
1010
1011 reg = rtl818x_ioread8(priv, &priv->map->CMD);
1012 reg |= RTL818X_CMD_TX_ENABLE;
1013 reg |= RTL818X_CMD_RX_ENABLE;
1014 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
1015 INIT_DELAYED_WORK(&priv->work, rtl8187_work);
1016
1017 rtl8187_start_exit:
1018 mutex_unlock(&priv->conf_mutex);
1019 return ret;
1020 }
1021
1022 static void rtl8187_stop(struct ieee80211_hw *dev)
1023 {
1024 struct rtl8187_priv *priv = dev->priv;
1025 struct sk_buff *skb;
1026 u32 reg;
1027
1028 mutex_lock(&priv->conf_mutex);
1029 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
1030
1031 reg = rtl818x_ioread8(priv, &priv->map->CMD);
1032 reg &= ~RTL818X_CMD_TX_ENABLE;
1033 reg &= ~RTL818X_CMD_RX_ENABLE;
1034 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
1035
1036 priv->rf->stop(dev);
1037 rtl8187_set_anaparam(priv, false);
1038
1039 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1040 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
1041 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
1042 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1043
1044 while ((skb = skb_dequeue(&priv->b_tx_status.queue)))
1045 dev_kfree_skb_any(skb);
1046
1047 usb_kill_anchored_urbs(&priv->anchored);
1048 mutex_unlock(&priv->conf_mutex);
1049
1050 if (!priv->is_rtl8187b)
1051 cancel_delayed_work_sync(&priv->work);
1052 }
1053
1054 static u64 rtl8187_get_tsf(struct ieee80211_hw *dev, struct ieee80211_vif *vif)
1055 {
1056 struct rtl8187_priv *priv = dev->priv;
1057
1058 return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
1059 (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
1060 }
1061
1062
1063 static void rtl8187_beacon_work(struct work_struct *work)
1064 {
1065 struct rtl8187_vif *vif_priv =
1066 container_of(work, struct rtl8187_vif, beacon_work.work);
1067 struct ieee80211_vif *vif =
1068 container_of((void *)vif_priv, struct ieee80211_vif, drv_priv);
1069 struct ieee80211_hw *dev = vif_priv->dev;
1070 struct ieee80211_mgmt *mgmt;
1071 struct sk_buff *skb;
1072
1073 /* don't overflow the tx ring */
1074 if (ieee80211_queue_stopped(dev, 0))
1075 goto resched;
1076
1077 /* grab a fresh beacon */
1078 skb = ieee80211_beacon_get(dev, vif);
1079 if (!skb)
1080 goto resched;
1081
1082 /*
1083 * update beacon timestamp w/ TSF value
1084 * TODO: make hardware update beacon timestamp
1085 */
1086 mgmt = (struct ieee80211_mgmt *)skb->data;
1087 mgmt->u.beacon.timestamp = cpu_to_le64(rtl8187_get_tsf(dev, vif));
1088
1089 /* TODO: use actual beacon queue */
1090 skb_set_queue_mapping(skb, 0);
1091
1092 rtl8187_tx(dev, NULL, skb);
1093
1094 resched:
1095 /*
1096 * schedule next beacon
1097 * TODO: use hardware support for beacon timing
1098 */
1099 schedule_delayed_work(&vif_priv->beacon_work,
1100 usecs_to_jiffies(1024 * vif->bss_conf.beacon_int));
1101 }
1102
1103
1104 static int rtl8187_add_interface(struct ieee80211_hw *dev,
1105 struct ieee80211_vif *vif)
1106 {
1107 struct rtl8187_priv *priv = dev->priv;
1108 struct rtl8187_vif *vif_priv;
1109 int i;
1110 int ret = -EOPNOTSUPP;
1111
1112 mutex_lock(&priv->conf_mutex);
1113 if (priv->vif)
1114 goto exit;
1115
1116 switch (vif->type) {
1117 case NL80211_IFTYPE_STATION:
1118 case NL80211_IFTYPE_ADHOC:
1119 break;
1120 default:
1121 goto exit;
1122 }
1123
1124 ret = 0;
1125 priv->vif = vif;
1126
1127 /* Initialize driver private area */
1128 vif_priv = (struct rtl8187_vif *)&vif->drv_priv;
1129 vif_priv->dev = dev;
1130 INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8187_beacon_work);
1131 vif_priv->enable_beacon = false;
1132
1133
1134 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1135 for (i = 0; i < ETH_ALEN; i++)
1136 rtl818x_iowrite8(priv, &priv->map->MAC[i],
1137 ((u8 *)vif->addr)[i]);
1138 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1139
1140 exit:
1141 mutex_unlock(&priv->conf_mutex);
1142 return ret;
1143 }
1144
1145 static void rtl8187_remove_interface(struct ieee80211_hw *dev,
1146 struct ieee80211_vif *vif)
1147 {
1148 struct rtl8187_priv *priv = dev->priv;
1149 mutex_lock(&priv->conf_mutex);
1150 priv->vif = NULL;
1151 mutex_unlock(&priv->conf_mutex);
1152 }
1153
1154 static int rtl8187_config(struct ieee80211_hw *dev, u32 changed)
1155 {
1156 struct rtl8187_priv *priv = dev->priv;
1157 struct ieee80211_conf *conf = &dev->conf;
1158 u32 reg;
1159
1160 mutex_lock(&priv->conf_mutex);
1161 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1162 /* Enable TX loopback on MAC level to avoid TX during channel
1163 * changes, as this has be seen to causes problems and the
1164 * card will stop work until next reset
1165 */
1166 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
1167 reg | RTL818X_TX_CONF_LOOPBACK_MAC);
1168 priv->rf->set_chan(dev, conf);
1169 msleep(10);
1170 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
1171
1172 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
1173 rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
1174 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
1175 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
1176 mutex_unlock(&priv->conf_mutex);
1177 return 0;
1178 }
1179
1180 /*
1181 * With 8187B, AC_*_PARAM clashes with FEMR definition in struct rtl818x_csr for
1182 * example. Thus we have to use raw values for AC_*_PARAM register addresses.
1183 */
1184 static __le32 *rtl8187b_ac_addr[4] = {
1185 (__le32 *) 0xFFF0, /* AC_VO */
1186 (__le32 *) 0xFFF4, /* AC_VI */
1187 (__le32 *) 0xFFFC, /* AC_BK */
1188 (__le32 *) 0xFFF8, /* AC_BE */
1189 };
1190
1191 #define SIFS_TIME 0xa
1192
1193 static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot,
1194 bool use_short_preamble)
1195 {
1196 if (priv->is_rtl8187b) {
1197 u8 difs, eifs;
1198 u16 ack_timeout;
1199 int queue;
1200
1201 if (use_short_slot) {
1202 priv->slot_time = 0x9;
1203 difs = 0x1c;
1204 eifs = 0x53;
1205 } else {
1206 priv->slot_time = 0x14;
1207 difs = 0x32;
1208 eifs = 0x5b;
1209 }
1210 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
1211 rtl818x_iowrite8(priv, &priv->map->SLOT, priv->slot_time);
1212 rtl818x_iowrite8(priv, &priv->map->DIFS, difs);
1213
1214 /*
1215 * BRSR+1 on 8187B is in fact EIFS register
1216 * Value in units of 4 us
1217 */
1218 rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs);
1219
1220 /*
1221 * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout
1222 * register. In units of 4 us like eifs register
1223 * ack_timeout = ack duration + plcp + difs + preamble
1224 */
1225 ack_timeout = 112 + 48 + difs;
1226 if (use_short_preamble)
1227 ack_timeout += 72;
1228 else
1229 ack_timeout += 144;
1230 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER,
1231 DIV_ROUND_UP(ack_timeout, 4));
1232
1233 for (queue = 0; queue < 4; queue++)
1234 rtl818x_iowrite8(priv, (u8 *) rtl8187b_ac_addr[queue],
1235 priv->aifsn[queue] * priv->slot_time +
1236 SIFS_TIME);
1237 } else {
1238 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
1239 if (use_short_slot) {
1240 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
1241 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
1242 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
1243 } else {
1244 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
1245 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
1246 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
1247 }
1248 }
1249 }
1250
1251 static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
1252 struct ieee80211_vif *vif,
1253 struct ieee80211_bss_conf *info,
1254 u32 changed)
1255 {
1256 struct rtl8187_priv *priv = dev->priv;
1257 struct rtl8187_vif *vif_priv;
1258 int i;
1259 u8 reg;
1260
1261 vif_priv = (struct rtl8187_vif *)&vif->drv_priv;
1262
1263 if (changed & BSS_CHANGED_BSSID) {
1264 mutex_lock(&priv->conf_mutex);
1265 for (i = 0; i < ETH_ALEN; i++)
1266 rtl818x_iowrite8(priv, &priv->map->BSSID[i],
1267 info->bssid[i]);
1268
1269 if (priv->is_rtl8187b)
1270 reg = RTL818X_MSR_ENEDCA;
1271 else
1272 reg = 0;
1273
1274 if (is_valid_ether_addr(info->bssid)) {
1275 if (vif->type == NL80211_IFTYPE_ADHOC)
1276 reg |= RTL818X_MSR_ADHOC;
1277 else
1278 reg |= RTL818X_MSR_INFRA;
1279 }
1280 else
1281 reg |= RTL818X_MSR_NO_LINK;
1282
1283 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
1284
1285 mutex_unlock(&priv->conf_mutex);
1286 }
1287
1288 if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE))
1289 rtl8187_conf_erp(priv, info->use_short_slot,
1290 info->use_short_preamble);
1291
1292 if (changed & BSS_CHANGED_BEACON_ENABLED)
1293 vif_priv->enable_beacon = info->enable_beacon;
1294
1295 if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) {
1296 cancel_delayed_work_sync(&vif_priv->beacon_work);
1297 if (vif_priv->enable_beacon)
1298 schedule_work(&vif_priv->beacon_work.work);
1299 }
1300
1301 }
1302
1303 static u64 rtl8187_prepare_multicast(struct ieee80211_hw *dev,
1304 struct netdev_hw_addr_list *mc_list)
1305 {
1306 return netdev_hw_addr_list_count(mc_list);
1307 }
1308
1309 static void rtl8187_configure_filter(struct ieee80211_hw *dev,
1310 unsigned int changed_flags,
1311 unsigned int *total_flags,
1312 u64 multicast)
1313 {
1314 struct rtl8187_priv *priv = dev->priv;
1315
1316 if (changed_flags & FIF_FCSFAIL)
1317 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
1318 if (changed_flags & FIF_CONTROL)
1319 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
1320 if (*total_flags & FIF_OTHER_BSS ||
1321 *total_flags & FIF_ALLMULTI || multicast > 0)
1322 priv->rx_conf |= RTL818X_RX_CONF_MONITOR;
1323 else
1324 priv->rx_conf &= ~RTL818X_RX_CONF_MONITOR;
1325
1326 *total_flags = 0;
1327
1328 if (priv->rx_conf & RTL818X_RX_CONF_FCS)
1329 *total_flags |= FIF_FCSFAIL;
1330 if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
1331 *total_flags |= FIF_CONTROL;
1332 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR) {
1333 *total_flags |= FIF_OTHER_BSS;
1334 *total_flags |= FIF_ALLMULTI;
1335 }
1336
1337 rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
1338 }
1339
1340 static int rtl8187_conf_tx(struct ieee80211_hw *dev,
1341 struct ieee80211_vif *vif, u16 queue,
1342 const struct ieee80211_tx_queue_params *params)
1343 {
1344 struct rtl8187_priv *priv = dev->priv;
1345 u8 cw_min, cw_max;
1346
1347 if (queue > 3)
1348 return -EINVAL;
1349
1350 cw_min = fls(params->cw_min);
1351 cw_max = fls(params->cw_max);
1352
1353 if (priv->is_rtl8187b) {
1354 priv->aifsn[queue] = params->aifs;
1355
1356 /*
1357 * This is the structure of AC_*_PARAM registers in 8187B:
1358 * - TXOP limit field, bit offset = 16
1359 * - ECWmax, bit offset = 12
1360 * - ECWmin, bit offset = 8
1361 * - AIFS, bit offset = 0
1362 */
1363 rtl818x_iowrite32(priv, rtl8187b_ac_addr[queue],
1364 (params->txop << 16) | (cw_max << 12) |
1365 (cw_min << 8) | (params->aifs *
1366 priv->slot_time + SIFS_TIME));
1367 } else {
1368 if (queue != 0)
1369 return -EINVAL;
1370
1371 rtl818x_iowrite8(priv, &priv->map->CW_VAL,
1372 cw_min | (cw_max << 4));
1373 }
1374 return 0;
1375 }
1376
1377
1378 static const struct ieee80211_ops rtl8187_ops = {
1379 .tx = rtl8187_tx,
1380 .start = rtl8187_start,
1381 .stop = rtl8187_stop,
1382 .add_interface = rtl8187_add_interface,
1383 .remove_interface = rtl8187_remove_interface,
1384 .config = rtl8187_config,
1385 .bss_info_changed = rtl8187_bss_info_changed,
1386 .prepare_multicast = rtl8187_prepare_multicast,
1387 .configure_filter = rtl8187_configure_filter,
1388 .conf_tx = rtl8187_conf_tx,
1389 .rfkill_poll = rtl8187_rfkill_poll,
1390 .get_tsf = rtl8187_get_tsf,
1391 };
1392
1393 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
1394 {
1395 struct ieee80211_hw *dev = eeprom->data;
1396 struct rtl8187_priv *priv = dev->priv;
1397 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1398
1399 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
1400 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
1401 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
1402 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
1403 }
1404
1405 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
1406 {
1407 struct ieee80211_hw *dev = eeprom->data;
1408 struct rtl8187_priv *priv = dev->priv;
1409 u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
1410
1411 if (eeprom->reg_data_in)
1412 reg |= RTL818X_EEPROM_CMD_WRITE;
1413 if (eeprom->reg_data_out)
1414 reg |= RTL818X_EEPROM_CMD_READ;
1415 if (eeprom->reg_data_clock)
1416 reg |= RTL818X_EEPROM_CMD_CK;
1417 if (eeprom->reg_chip_select)
1418 reg |= RTL818X_EEPROM_CMD_CS;
1419
1420 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
1421 udelay(10);
1422 }
1423
1424 static int rtl8187_probe(struct usb_interface *intf,
1425 const struct usb_device_id *id)
1426 {
1427 struct usb_device *udev = interface_to_usbdev(intf);
1428 struct ieee80211_hw *dev;
1429 struct rtl8187_priv *priv;
1430 struct eeprom_93cx6 eeprom;
1431 struct ieee80211_channel *channel;
1432 const char *chip_name;
1433 u16 txpwr, reg;
1434 u16 product_id = le16_to_cpu(udev->descriptor.idProduct);
1435 int err, i;
1436 u8 mac_addr[ETH_ALEN];
1437
1438 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
1439 if (!dev) {
1440 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
1441 return -ENOMEM;
1442 }
1443
1444 priv = dev->priv;
1445 priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
1446
1447 /* allocate "DMA aware" buffer for register accesses */
1448 priv->io_dmabuf = kmalloc(sizeof(*priv->io_dmabuf), GFP_KERNEL);
1449 if (!priv->io_dmabuf) {
1450 err = -ENOMEM;
1451 goto err_free_dev;
1452 }
1453 mutex_init(&priv->io_mutex);
1454 mutex_init(&priv->conf_mutex);
1455
1456 SET_IEEE80211_DEV(dev, &intf->dev);
1457 usb_set_intfdata(intf, dev);
1458 priv->udev = udev;
1459
1460 usb_get_dev(udev);
1461
1462 skb_queue_head_init(&priv->rx_queue);
1463
1464 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
1465 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
1466
1467 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
1468 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
1469 priv->map = (struct rtl818x_csr *)0xFF00;
1470
1471 priv->band.band = NL80211_BAND_2GHZ;
1472 priv->band.channels = priv->channels;
1473 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
1474 priv->band.bitrates = priv->rates;
1475 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1476 dev->wiphy->bands[NL80211_BAND_2GHZ] = &priv->band;
1477
1478
1479 ieee80211_hw_set(dev, RX_INCLUDES_FCS);
1480 ieee80211_hw_set(dev, HOST_BROADCAST_PS_BUFFERING);
1481 ieee80211_hw_set(dev, SIGNAL_DBM);
1482 /* Initialize rate-control variables */
1483 dev->max_rates = 1;
1484 dev->max_rate_tries = RETRY_COUNT;
1485
1486 eeprom.data = dev;
1487 eeprom.register_read = rtl8187_eeprom_register_read;
1488 eeprom.register_write = rtl8187_eeprom_register_write;
1489 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1490 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1491 else
1492 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1493
1494 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1495 udelay(10);
1496
1497 eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
1498 (__le16 __force *)mac_addr, 3);
1499 if (!is_valid_ether_addr(mac_addr)) {
1500 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
1501 "generated MAC address\n");
1502 eth_random_addr(mac_addr);
1503 }
1504 SET_IEEE80211_PERM_ADDR(dev, mac_addr);
1505
1506 channel = priv->channels;
1507 for (i = 0; i < 3; i++) {
1508 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
1509 &txpwr);
1510 (*channel++).hw_value = txpwr & 0xFF;
1511 (*channel++).hw_value = txpwr >> 8;
1512 }
1513 for (i = 0; i < 2; i++) {
1514 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
1515 &txpwr);
1516 (*channel++).hw_value = txpwr & 0xFF;
1517 (*channel++).hw_value = txpwr >> 8;
1518 }
1519
1520 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
1521 &priv->txpwr_base);
1522
1523 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
1524 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
1525 /* 0 means asic B-cut, we should use SW 3 wire
1526 * bit-by-bit banging for radio. 1 means we can use
1527 * USB specific request to write radio registers */
1528 priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
1529 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
1530 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1531
1532 if (!priv->is_rtl8187b) {
1533 u32 reg32;
1534 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1535 reg32 &= RTL818X_TX_CONF_HWVER_MASK;
1536 switch (reg32) {
1537 case RTL818X_TX_CONF_R8187vD_B:
1538 /* Some RTL8187B devices have a USB ID of 0x8187
1539 * detect them here */
1540 chip_name = "RTL8187BvB(early)";
1541 priv->is_rtl8187b = 1;
1542 priv->hw_rev = RTL8187BvB;
1543 break;
1544 case RTL818X_TX_CONF_R8187vD:
1545 chip_name = "RTL8187vD";
1546 break;
1547 default:
1548 chip_name = "RTL8187vB (default)";
1549 }
1550 } else {
1551 /*
1552 * Force USB request to write radio registers for 8187B, Realtek
1553 * only uses it in their sources
1554 */
1555 /*if (priv->asic_rev == 0) {
1556 printk(KERN_WARNING "rtl8187: Forcing use of USB "
1557 "requests to write to radio registers\n");
1558 priv->asic_rev = 1;
1559 }*/
1560 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
1561 case RTL818X_R8187B_B:
1562 chip_name = "RTL8187BvB";
1563 priv->hw_rev = RTL8187BvB;
1564 break;
1565 case RTL818X_R8187B_D:
1566 chip_name = "RTL8187BvD";
1567 priv->hw_rev = RTL8187BvD;
1568 break;
1569 case RTL818X_R8187B_E:
1570 chip_name = "RTL8187BvE";
1571 priv->hw_rev = RTL8187BvE;
1572 break;
1573 default:
1574 chip_name = "RTL8187BvB (default)";
1575 priv->hw_rev = RTL8187BvB;
1576 }
1577 }
1578
1579 if (!priv->is_rtl8187b) {
1580 for (i = 0; i < 2; i++) {
1581 eeprom_93cx6_read(&eeprom,
1582 RTL8187_EEPROM_TXPWR_CHAN_6 + i,
1583 &txpwr);
1584 (*channel++).hw_value = txpwr & 0xFF;
1585 (*channel++).hw_value = txpwr >> 8;
1586 }
1587 } else {
1588 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
1589 &txpwr);
1590 (*channel++).hw_value = txpwr & 0xFF;
1591
1592 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
1593 (*channel++).hw_value = txpwr & 0xFF;
1594
1595 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
1596 (*channel++).hw_value = txpwr & 0xFF;
1597 (*channel++).hw_value = txpwr >> 8;
1598 }
1599 /* Handle the differing rfkill GPIO bit in different models */
1600 priv->rfkill_mask = RFKILL_MASK_8187_89_97;
1601 if (product_id == 0x8197 || product_id == 0x8198) {
1602 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_SELECT_GPIO, &reg);
1603 if (reg & 0xFF00)
1604 priv->rfkill_mask = RFKILL_MASK_8198;
1605 }
1606 dev->vif_data_size = sizeof(struct rtl8187_vif);
1607 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1608 BIT(NL80211_IFTYPE_ADHOC) ;
1609
1610 wiphy_ext_feature_set(dev->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1611
1612 if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
1613 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
1614 " info!\n");
1615
1616 priv->rf = rtl8187_detect_rf(dev);
1617 dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
1618 sizeof(struct rtl8187_tx_hdr) :
1619 sizeof(struct rtl8187b_tx_hdr);
1620 if (!priv->is_rtl8187b)
1621 dev->queues = 1;
1622 else
1623 dev->queues = 4;
1624
1625 err = ieee80211_register_hw(dev);
1626 if (err) {
1627 printk(KERN_ERR "rtl8187: Cannot register device\n");
1628 goto err_free_dmabuf;
1629 }
1630 skb_queue_head_init(&priv->b_tx_status.queue);
1631
1632 wiphy_info(dev->wiphy, "hwaddr %pM, %s V%d + %s, rfkill mask %d\n",
1633 mac_addr, chip_name, priv->asic_rev, priv->rf->name,
1634 priv->rfkill_mask);
1635
1636 #ifdef CONFIG_RTL8187_LEDS
1637 eeprom_93cx6_read(&eeprom, 0x3F, &reg);
1638 reg &= 0xFF;
1639 rtl8187_leds_init(dev, reg);
1640 #endif
1641 rtl8187_rfkill_init(dev);
1642
1643 return 0;
1644
1645 err_free_dmabuf:
1646 kfree(priv->io_dmabuf);
1647 usb_set_intfdata(intf, NULL);
1648 usb_put_dev(udev);
1649 err_free_dev:
1650 ieee80211_free_hw(dev);
1651 return err;
1652 }
1653
1654 static void rtl8187_disconnect(struct usb_interface *intf)
1655 {
1656 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1657 struct rtl8187_priv *priv;
1658
1659 if (!dev)
1660 return;
1661
1662 #ifdef CONFIG_RTL8187_LEDS
1663 rtl8187_leds_exit(dev);
1664 #endif
1665 rtl8187_rfkill_exit(dev);
1666 ieee80211_unregister_hw(dev);
1667
1668 priv = dev->priv;
1669 usb_reset_device(priv->udev);
1670 usb_put_dev(interface_to_usbdev(intf));
1671 kfree(priv->io_dmabuf);
1672 ieee80211_free_hw(dev);
1673 }
1674
1675 static struct usb_driver rtl8187_driver = {
1676 .name = KBUILD_MODNAME,
1677 .id_table = rtl8187_table,
1678 .probe = rtl8187_probe,
1679 .disconnect = rtl8187_disconnect,
1680 .disable_hub_initiated_lpm = 1,
1681 };
1682
1683 module_usb_driver(rtl8187_driver);
Linux with added FPC-III support