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iwlegacy: do not set tx power when channel is changing
[deliverable/linux.git] / drivers / net / wireless / rtl818x / rtl8187 / dev.c
CommitLineData
605bebe2
MW		 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 *
3461fc12
LF		 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 *
0aec00ae
JL		 15 * Magic delays and register offsets below are taken from the original
16 * r8187 driver sources. Thanks to Realtek for their support!
605bebe2
MW		 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>
5a0e3ad6 25#include <linux/slab.h>
605bebe2
MW		 26#include <linux/delay.h>
27#include <linux/etherdevice.h>
28#include <linux/eeprom_93cx6.h>
29#include <net/mac80211.h>
30
31#include "rtl8187.h"
3cfeb0c3 32#include "rtl8225.h"
a027087a 33#ifdef CONFIG_RTL8187_LEDS
3cfeb0c3 34#include "leds.h"
a027087a 35#endif
3cfeb0c3 36#include "rfkill.h"
605bebe2
MW		 37
38MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
39MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
3461fc12
LF		 40MODULE_AUTHOR("Herton Ronaldo Krzesinski <herton@mandriva.com.br>");
41MODULE_AUTHOR("Hin-Tak Leung <htl10@users.sourceforge.net>");
42MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>");
f8a08c34 43MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
605bebe2
MW		 44MODULE_LICENSE("GPL");
45
46static struct usb_device_id rtl8187_table[] __devinitdata = {
7c7e6af3
AM		 47 /* Asus */
48 {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
eaca90da
FF		 49 /* Belkin */
50 {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B},
605bebe2 51 /* Realtek */
f8a08c34
HTL		 52 {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
53 {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
54 {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
746db510 55 {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B},
046ee5d2
LF		 56 /* Surecom */
57 {USB_DEVICE(0x0769, 0x11F2), .driver_info = DEVICE_RTL8187},
58 /* Logitech */
59 {USB_DEVICE(0x0789, 0x010C), .driver_info = DEVICE_RTL8187},
605bebe2 60 /* Netgear */
f8a08c34
HTL		 61 {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
62 {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
fcd7cc14 63 {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B},
c3cf60a9 64 /* HP */
f8a08c34 65 {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
9934550d 66 /* Sitecom */
f8a08c34 67 {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
f3c76918 68 {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
174b2496 69 {USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B},
046ee5d2
LF		 70 /* Sphairon Access Systems GmbH */
71 {USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187},
72 /* Dick Smith Electronics */
73 {USB_DEVICE(0x1371, 0x9401), .driver_info = DEVICE_RTL8187},
8f7c41d4
IK		 74 /* Abocom */
75 {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187},
046ee5d2
LF		 76 /* Qcom */
77 {USB_DEVICE(0x18E8, 0x6232), .driver_info = DEVICE_RTL8187},
78 /* AirLive */
79 {USB_DEVICE(0x1b75, 0x8187), .driver_info = DEVICE_RTL8187},
aeeab4ff
JL		 80 /* Linksys */
81 {USB_DEVICE(0x1737, 0x0073), .driver_info = DEVICE_RTL8187B},
605bebe2
MW		 82 {}
83};
84
85MODULE_DEVICE_TABLE(usb, rtl8187_table);
86
8318d78a
JB		 87static const struct ieee80211_rate rtl818x_rates[] = {
88 { .bitrate = 10, .hw_value = 0, },
89 { .bitrate = 20, .hw_value = 1, },
90 { .bitrate = 55, .hw_value = 2, },
91 { .bitrate = 110, .hw_value = 3, },
92 { .bitrate = 60, .hw_value = 4, },
93 { .bitrate = 90, .hw_value = 5, },
94 { .bitrate = 120, .hw_value = 6, },
95 { .bitrate = 180, .hw_value = 7, },
96 { .bitrate = 240, .hw_value = 8, },
97 { .bitrate = 360, .hw_value = 9, },
98 { .bitrate = 480, .hw_value = 10, },
99 { .bitrate = 540, .hw_value = 11, },
100};
101
102static const struct ieee80211_channel rtl818x_channels[] = {
103 { .center_freq = 2412 },
104 { .center_freq = 2417 },
105 { .center_freq = 2422 },
106 { .center_freq = 2427 },
107 { .center_freq = 2432 },
108 { .center_freq = 2437 },
109 { .center_freq = 2442 },
110 { .center_freq = 2447 },
111 { .center_freq = 2452 },
112 { .center_freq = 2457 },
113 { .center_freq = 2462 },
114 { .center_freq = 2467 },
115 { .center_freq = 2472 },
116 { .center_freq = 2484 },
117};
118
4150c572
JB		 119static void rtl8187_iowrite_async_cb(struct urb *urb)
120{
121 kfree(urb->context);
4150c572
JB		 122}
123
124static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
125 void *data, u16 len)
126{
127 struct usb_ctrlrequest *dr;
128 struct urb *urb;
129 struct rtl8187_async_write_data {
130 u8 data[4];
131 struct usb_ctrlrequest dr;
132 } *buf;
ea8ee240 133 int rc;
4150c572
JB		 134
135 buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
136 if (!buf)
137 return;
138
139 urb = usb_alloc_urb(0, GFP_ATOMIC);
140 if (!urb) {
141 kfree(buf);
142 return;
143 }
144
145 dr = &buf->dr;
146
147 dr->bRequestType = RTL8187_REQT_WRITE;
148 dr->bRequest = RTL8187_REQ_SET_REG;
149 dr->wValue = addr;
150 dr->wIndex = 0;
151 dr->wLength = cpu_to_le16(len);
152
153 memcpy(buf, data, len);
154
155 usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
156 (unsigned char *)dr, buf, len,
157 rtl8187_iowrite_async_cb, buf);
c1db52b9 158 usb_anchor_urb(urb, &priv->anchored);
ea8ee240
ON		 159 rc = usb_submit_urb(urb, GFP_ATOMIC);
160 if (rc < 0) {
161 kfree(buf);
c1db52b9 162 usb_unanchor_urb(urb);
ea8ee240 163 }
c1db52b9 164 usb_free_urb(urb);
4150c572
JB		 165}
166
167static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
168 __le32 *addr, u32 val)
169{
170 __le32 buf = cpu_to_le32(val);
171
172 rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
173 &buf, sizeof(buf));
174}
175
605bebe2
MW		 176void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
177{
178 struct rtl8187_priv *priv = dev->priv;
179
180 data <<= 8;
181 data |= addr | 0x80;
182
183 rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
184 rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
185 rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
186 rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
605bebe2
MW		 187}
188
189static void rtl8187_tx_cb(struct urb *urb)
190{
605bebe2 191 struct sk_buff *skb = (struct sk_buff *)urb->context;
e039fa4a 192 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e6a9854b 193 struct ieee80211_hw *hw = info->rate_driver_data[0];
6f7853f3 194 struct rtl8187_priv *priv = hw->priv;
605bebe2 195
6f7853f3
HTL		 196 skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
197 sizeof(struct rtl8187_tx_hdr));
e6a9854b 198 ieee80211_tx_info_clear_status(info);
3517afde 199
2f47690e
LF		 200 if (!(urb->status) && !(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
201 if (priv->is_rtl8187b) {
202 skb_queue_tail(&priv->b_tx_status.queue, skb);
203
204 /* queue is "full", discard last items */
205 while (skb_queue_len(&priv->b_tx_status.queue) > 5) {
206 struct sk_buff *old_skb;
207
208 dev_dbg(&priv->udev->dev,
209 "transmit status queue full\n");
210
211 old_skb = skb_dequeue(&priv->b_tx_status.queue);
212 ieee80211_tx_status_irqsafe(hw, old_skb);
213 }
214 return;
215 } else {
3517afde 216 info->flags |= IEEE80211_TX_STAT_ACK;
2f47690e
LF		 217 }
218 }
219 if (priv->is_rtl8187b)
3517afde 220 ieee80211_tx_status_irqsafe(hw, skb);
2f47690e
LF		 221 else {
222 /* Retry information for the RTI8187 is only available by
223 * reading a register in the device. We are in interrupt mode
224 * here, thus queue the skb and finish on a work queue. */
225 skb_queue_tail(&priv->b_tx_status.queue, skb);
42935eca 226 ieee80211_queue_delayed_work(hw, &priv->work, 0);
3517afde 227 }
605bebe2
MW		 228}
229
e039fa4a 230static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
605bebe2
MW		 231{
232 struct rtl8187_priv *priv = dev->priv;
e039fa4a 233 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
6f7853f3
HTL		 234 unsigned int ep;
235 void *buf;
605bebe2 236 struct urb *urb;
98798f48
MW		 237 __le16 rts_dur = 0;
238 u32 flags;
ea8ee240 239 int rc;
605bebe2
MW		 240
241 urb = usb_alloc_urb(0, GFP_ATOMIC);
242 if (!urb) {
243 kfree_skb(skb);
d6e2be98 244 return NETDEV_TX_OK;
605bebe2
MW		 245 }
246
98798f48 247 flags = skb->len;
38e3b0d8 248 flags |= RTL818X_TX_DESC_FLAG_NO_ENC;
aa68cbfb 249
e039fa4a 250 flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
8b7b1e05 251 if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
38e3b0d8 252 flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
e6a9854b 253 if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
38e3b0d8 254 flags |= RTL818X_TX_DESC_FLAG_RTS;
e039fa4a 255 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
32bfd35d 256 rts_dur = ieee80211_rts_duration(dev, priv->vif,
e039fa4a 257 skb->len, info);
e6a9854b 258 } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
38e3b0d8 259 flags |= RTL818X_TX_DESC_FLAG_CTS;
e039fa4a 260 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
aa68cbfb 261 }
98798f48 262
6f7853f3
HTL		 263 if (!priv->is_rtl8187b) {
264 struct rtl8187_tx_hdr *hdr =
265 (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
266 hdr->flags = cpu_to_le32(flags);
267 hdr->len = 0;
268 hdr->rts_duration = rts_dur;
d9a1f486 269 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
6f7853f3
HTL		 270 buf = hdr;
271
272 ep = 2;
273 } else {
274 /* fc needs to be calculated before skb_push() */
275 unsigned int epmap[4] = { 6, 7, 5, 4 };
276 struct ieee80211_hdr *tx_hdr =
277 (struct ieee80211_hdr *)(skb->data);
278 u16 fc = le16_to_cpu(tx_hdr->frame_control);
279
280 struct rtl8187b_tx_hdr *hdr =
281 (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
282 struct ieee80211_rate *txrate =
283 ieee80211_get_tx_rate(dev, info);
284 memset(hdr, 0, sizeof(*hdr));
285 hdr->flags = cpu_to_le32(flags);
286 hdr->rts_duration = rts_dur;
d9a1f486 287 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
6f7853f3
HTL		 288 hdr->tx_duration =
289 ieee80211_generic_frame_duration(dev, priv->vif,
290 skb->len, txrate);
291 buf = hdr;
292
293 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
294 ep = 12;
295 else
296 ep = epmap[skb_get_queue_mapping(skb)];
297 }
605bebe2 298
e6a9854b
JB		 299 info->rate_driver_data[0] = dev;
300 info->rate_driver_data[1] = urb;
6f7853f3
HTL		 301
302 usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
303 buf, skb->len, rtl8187_tx_cb, skb);
2fcbab04 304 urb->transfer_flags |= URB_ZERO_PACKET;
c1db52b9 305 usb_anchor_urb(urb, &priv->anchored);
ea8ee240
ON		 306 rc = usb_submit_urb(urb, GFP_ATOMIC);
307 if (rc < 0) {
c1db52b9 308 usb_unanchor_urb(urb);
ea8ee240
ON		 309 kfree_skb(skb);
310 }
c1db52b9 311 usb_free_urb(urb);
605bebe2 312
d6e2be98 313 return NETDEV_TX_OK;
605bebe2
MW		 314}
315
316static void rtl8187_rx_cb(struct urb *urb)
317{
318 struct sk_buff *skb = (struct sk_buff *)urb->context;
319 struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
320 struct ieee80211_hw *dev = info->dev;
321 struct rtl8187_priv *priv = dev->priv;
605bebe2
MW		 322 struct ieee80211_rx_status rx_status = { 0 };
323 int rate, signal;
4150c572 324 u32 flags;
d8588227 325 unsigned long f;
605bebe2 326
d8588227 327 spin_lock_irqsave(&priv->rx_queue.lock, f);
46c37672 328 __skb_unlink(skb, &priv->rx_queue);
d8588227 329 spin_unlock_irqrestore(&priv->rx_queue.lock, f);
c1db52b9 330 skb_put(skb, urb->actual_length);
605bebe2
MW		 331
332 if (unlikely(urb->status)) {
605bebe2
MW		 333 dev_kfree_skb_irq(skb);
334 return;
335 }
336
6f7853f3
HTL		 337 if (!priv->is_rtl8187b) {
338 struct rtl8187_rx_hdr *hdr =
339 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
340 flags = le32_to_cpu(hdr->flags);
a7db74f4 341 /* As with the RTL8187B below, the AGC is used to calculate
70d9f405 342 * signal strength. In this case, the scaling
a7db74f4
LF		 343 * constants are derived from the output of p54usb.
344 */
a7db74f4 345 signal = -4 - ((27 * hdr->agc) >> 6);
6f7853f3 346 rx_status.antenna = (hdr->signal >> 7) & 1;
6f7853f3 347 rx_status.mactime = le64_to_cpu(hdr->mac_time);
6f7853f3
HTL		 348 } else {
349 struct rtl8187b_rx_hdr *hdr =
350 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
0ccd58fc
LF		 351 /* The Realtek datasheet for the RTL8187B shows that the RX
352 * header contains the following quantities: signal quality,
353 * RSSI, AGC, the received power in dB, and the measured SNR.
354 * In testing, none of these quantities show qualitative
355 * agreement with AP signal strength, except for the AGC,
356 * which is inversely proportional to the strength of the
70d9f405
LF		 357 * signal. In the following, the signal strength
358 * is derived from the AGC. The arbitrary scaling constants
0ccd58fc
LF		 359 * are chosen to make the results close to the values obtained
360 * for a BCM4312 using b43 as the driver. The noise is ignored
361 * for now.
362 */
6f7853f3 363 flags = le32_to_cpu(hdr->flags);
0ccd58fc 364 signal = 14 - hdr->agc / 2;
0ccd58fc 365 rx_status.antenna = (hdr->rssi >> 7) & 1;
6f7853f3 366 rx_status.mactime = le64_to_cpu(hdr->mac_time);
6f7853f3 367 }
605bebe2 368
a7db74f4
LF		 369 rx_status.signal = signal;
370 priv->signal = signal;
371 rate = (flags >> 20) & 0xF;
6f7853f3 372 skb_trim(skb, flags & 0x0FFF);
8318d78a
JB		 373 rx_status.rate_idx = rate;
374 rx_status.freq = dev->conf.channel->center_freq;
375 rx_status.band = dev->conf.channel->band;
6ebacbb7 376 rx_status.flag |= RX_FLAG_MACTIME_MPDU;
38e3b0d8 377 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
4150c572 378 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
f1d58c25
JB		 379 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
380 ieee80211_rx_irqsafe(dev, skb);
605bebe2
MW		 381
382 skb = dev_alloc_skb(RTL8187_MAX_RX);
383 if (unlikely(!skb)) {
605bebe2
MW		 384 /* TODO check rx queue length and refill *somewhere* */
385 return;
386 }
387
388 info = (struct rtl8187_rx_info *)skb->cb;
389 info->urb = urb;
390 info->dev = dev;
391 urb->transfer_buffer = skb_tail_pointer(skb);
392 urb->context = skb;
393 skb_queue_tail(&priv->rx_queue, skb);
394
c1db52b9
LF		 395 usb_anchor_urb(urb, &priv->anchored);
396 if (usb_submit_urb(urb, GFP_ATOMIC)) {
397 usb_unanchor_urb(urb);
398 skb_unlink(skb, &priv->rx_queue);
399 dev_kfree_skb_irq(skb);
400 }
605bebe2
MW		 401}
402
403static int rtl8187_init_urbs(struct ieee80211_hw *dev)
404{
405 struct rtl8187_priv *priv = dev->priv;
c1db52b9 406 struct urb *entry = NULL;
605bebe2
MW		 407 struct sk_buff *skb;
408 struct rtl8187_rx_info *info;
c1db52b9 409 int ret = 0;
605bebe2 410
2a57cf3e 411 while (skb_queue_len(&priv->rx_queue) < 16) {
605bebe2 412 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
c1db52b9
LF		 413 if (!skb) {
414 ret = -ENOMEM;
415 goto err;
416 }
605bebe2
MW		 417 entry = usb_alloc_urb(0, GFP_KERNEL);
418 if (!entry) {
c1db52b9
LF		 419 ret = -ENOMEM;
420 goto err;
605bebe2
MW		 421 }
422 usb_fill_bulk_urb(entry, priv->udev,
6f7853f3
HTL		 423 usb_rcvbulkpipe(priv->udev,
424 priv->is_rtl8187b ? 3 : 1),
605bebe2
MW		 425 skb_tail_pointer(skb),
426 RTL8187_MAX_RX, rtl8187_rx_cb, skb);
427 info = (struct rtl8187_rx_info *)skb->cb;
428 info->urb = entry;
429 info->dev = dev;
430 skb_queue_tail(&priv->rx_queue, skb);
c1db52b9
LF		 431 usb_anchor_urb(entry, &priv->anchored);
432 ret = usb_submit_urb(entry, GFP_KERNEL);
433 if (ret) {
434 skb_unlink(skb, &priv->rx_queue);
435 usb_unanchor_urb(entry);
436 goto err;
437 }
438 usb_free_urb(entry);
605bebe2 439 }
c1db52b9 440 return ret;
605bebe2 441
c1db52b9
LF		 442err:
443 usb_free_urb(entry);
444 kfree_skb(skb);
445 usb_kill_anchored_urbs(&priv->anchored);
446 return ret;
605bebe2
MW		 447}
448
3517afde
HRK		 449static void rtl8187b_status_cb(struct urb *urb)
450{
451 struct ieee80211_hw *hw = (struct ieee80211_hw *)urb->context;
452 struct rtl8187_priv *priv = hw->priv;
453 u64 val;
454 unsigned int cmd_type;
455
c1db52b9 456 if (unlikely(urb->status))
3517afde 457 return;
3517afde
HRK		 458
459 /*
460 * Read from status buffer:
461 *
462 * bits [30:31] = cmd type:
463 * - 0 indicates tx beacon interrupt
464 * - 1 indicates tx close descriptor
465 *
466 * In the case of tx beacon interrupt:
467 * [0:9] = Last Beacon CW
468 * [10:29] = reserved
469 * [30:31] = 00b
470 * [32:63] = Last Beacon TSF
471 *
472 * If it's tx close descriptor:
473 * [0:7] = Packet Retry Count
474 * [8:14] = RTS Retry Count
475 * [15] = TOK
476 * [16:27] = Sequence No
477 * [28] = LS
478 * [29] = FS
479 * [30:31] = 01b
480 * [32:47] = unused (reserved?)
481 * [48:63] = MAC Used Time
482 */
483 val = le64_to_cpu(priv->b_tx_status.buf);
484
485 cmd_type = (val >> 30) & 0x3;
486 if (cmd_type == 1) {
487 unsigned int pkt_rc, seq_no;
488 bool tok;
489 struct sk_buff *skb;
490 struct ieee80211_hdr *ieee80211hdr;
491 unsigned long flags;
492
493 pkt_rc = val & 0xFF;
494 tok = val & (1 << 15);
495 seq_no = (val >> 16) & 0xFFF;
496
497 spin_lock_irqsave(&priv->b_tx_status.queue.lock, flags);
498 skb_queue_reverse_walk(&priv->b_tx_status.queue, skb) {
499 ieee80211hdr = (struct ieee80211_hdr *)skb->data;
500
501 /*
502 * While testing, it was discovered that the seq_no
503 * doesn't actually contains the sequence number.
504 * Instead of returning just the 12 bits of sequence
505 * number, hardware is returning entire sequence control
506 * (fragment number plus sequence number) in a 12 bit
507 * only field overflowing after some time. As a
508 * workaround, just consider the lower bits, and expect
509 * it's unlikely we wrongly ack some sent data
510 */
511 if ((le16_to_cpu(ieee80211hdr->seq_ctrl)
512 & 0xFFF) == seq_no)
513 break;
514 }
515 if (skb != (struct sk_buff *) &priv->b_tx_status.queue) {
516 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
517
518 __skb_unlink(skb, &priv->b_tx_status.queue);
519 if (tok)
520 info->flags |= IEEE80211_TX_STAT_ACK;
1548c86a 521 info->status.rates[0].count = pkt_rc + 1;
3517afde
HRK		 522
523 ieee80211_tx_status_irqsafe(hw, skb);
524 }
525 spin_unlock_irqrestore(&priv->b_tx_status.queue.lock, flags);
526 }
527
c1db52b9
LF		 528 usb_anchor_urb(urb, &priv->anchored);
529 if (usb_submit_urb(urb, GFP_ATOMIC))
530 usb_unanchor_urb(urb);
3517afde
HRK		 531}
532
533static int rtl8187b_init_status_urb(struct ieee80211_hw *dev)
534{
535 struct rtl8187_priv *priv = dev->priv;
536 struct urb *entry;
c1db52b9 537 int ret = 0;
3517afde
HRK		 538
539 entry = usb_alloc_urb(0, GFP_KERNEL);
540 if (!entry)
541 return -ENOMEM;
3517afde
HRK		 542
543 usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 9),
544 &priv->b_tx_status.buf, sizeof(priv->b_tx_status.buf),
545 rtl8187b_status_cb, dev);
546
c1db52b9
LF		 547 usb_anchor_urb(entry, &priv->anchored);
548 ret = usb_submit_urb(entry, GFP_KERNEL);
549 if (ret)
550 usb_unanchor_urb(entry);
551 usb_free_urb(entry);
3517afde 552
c1db52b9 553 return ret;
3517afde
HRK		 554}
555
0bf198eb
HRK		 556static void rtl8187_set_anaparam(struct rtl8187_priv *priv, bool rfon)
557{
558 u32 anaparam, anaparam2;
559 u8 anaparam3, reg;
560
561 if (!priv->is_rtl8187b) {
562 if (rfon) {
563 anaparam = RTL8187_RTL8225_ANAPARAM_ON;
564 anaparam2 = RTL8187_RTL8225_ANAPARAM2_ON;
565 } else {
566 anaparam = RTL8187_RTL8225_ANAPARAM_OFF;
567 anaparam2 = RTL8187_RTL8225_ANAPARAM2_OFF;
568 }
569 } else {
570 if (rfon) {
571 anaparam = RTL8187B_RTL8225_ANAPARAM_ON;
572 anaparam2 = RTL8187B_RTL8225_ANAPARAM2_ON;
573 anaparam3 = RTL8187B_RTL8225_ANAPARAM3_ON;
574 } else {
575 anaparam = RTL8187B_RTL8225_ANAPARAM_OFF;
576 anaparam2 = RTL8187B_RTL8225_ANAPARAM2_OFF;
577 anaparam3 = RTL8187B_RTL8225_ANAPARAM3_OFF;
578 }
579 }
580
581 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
582 RTL818X_EEPROM_CMD_CONFIG);
583 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
584 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
585 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
586 rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
587 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, anaparam2);
588 if (priv->is_rtl8187b)
589 rtl818x_iowrite8(priv, &priv->map->ANAPARAM3, anaparam3);
590 reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
591 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
592 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
593 RTL818X_EEPROM_CMD_NORMAL);
594}
595
f8a08c34 596static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
605bebe2
MW		 597{
598 struct rtl8187_priv *priv = dev->priv;
599 u8 reg;
600 int i;
601
605bebe2
MW		 602 reg = rtl818x_ioread8(priv, &priv->map->CMD);
603 reg &= (1 << 1);
604 reg |= RTL818X_CMD_RESET;
605 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
606
607 i = 10;
608 do {
609 msleep(2);
610 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
611 RTL818X_CMD_RESET))
612 break;
613 } while (--i);
614
615 if (!i) {
5db55844 616 wiphy_err(dev->wiphy, "Reset timeout!\n");
605bebe2
MW		 617 return -ETIMEDOUT;
618 }
619
620 /* reload registers from eeprom */
621 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
622
623 i = 10;
624 do {
625 msleep(4);
626 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
627 RTL818X_EEPROM_CMD_CONFIG))
628 break;
629 } while (--i);
630
631 if (!i) {
c96c31e4 632 wiphy_err(dev->wiphy, "eeprom reset timeout!\n");
605bebe2
MW		 633 return -ETIMEDOUT;
634 }
635
f8a08c34
HTL		 636 return 0;
637}
638
639static int rtl8187_init_hw(struct ieee80211_hw *dev)
640{
641 struct rtl8187_priv *priv = dev->priv;
642 u8 reg;
643 int res;
644
645 /* reset */
0bf198eb 646 rtl8187_set_anaparam(priv, true);
f8a08c34
HTL		 647
648 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
649
650 msleep(200);
651 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
652 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
653 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
654 msleep(200);
655
656 res = rtl8187_cmd_reset(dev);
657 if (res)
658 return res;
659
0bf198eb 660 rtl8187_set_anaparam(priv, true);
605bebe2
MW		 661
662 /* setup card */
663 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
ca9152e3 664 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0);
605bebe2
MW		 665
666 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
ca9152e3 667 rtl818x_iowrite8(priv, &priv->map->GPIO0, 1);
605bebe2
MW		 668 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
669
670 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
605bebe2
MW		 671
672 rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
673 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
674 reg &= 0x3F;
675 reg |= 0x80;
676 rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
677
678 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
679
680 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
681 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
2f47690e 682 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0);
605bebe2
MW		 683
684 // TODO: set RESP_RATE and BRSR properly
685 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
686 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
687
688 /* host_usb_init */
689 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
ca9152e3 690 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0);
605bebe2
MW		 691 reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
692 rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
693 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
ca9152e3 694 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0x20);
605bebe2
MW		 695 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
696 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
697 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
698 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
699 msleep(100);
700
701 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
702 rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
703 rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
f8a08c34
HTL		 704 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
705 RTL818X_EEPROM_CMD_CONFIG);
605bebe2 706 rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
f8a08c34
HTL		 707 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
708 RTL818X_EEPROM_CMD_NORMAL);
605bebe2
MW		 709 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
710 msleep(100);
711
f6532111 712 priv->rf->init(dev);
605bebe2
MW		 713
714 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
f6532111
MW		 715 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
716 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
605bebe2
MW		 717 rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
718 rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
719 rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
f6532111 720 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
605bebe2
MW		 721
722 return 0;
723}
724
f8a08c34
HTL		 725static const u8 rtl8187b_reg_table[][3] = {
726 {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
727 {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
728 {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
729 {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},
730
731 {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
732 {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
327571ea
HRK		 733 {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1},
734 {0xF2, 0x02, 1}, {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1},
735 {0xF6, 0x06, 1}, {0xF7, 0x07, 1}, {0xF8, 0x08, 1},
f8a08c34
HTL		 736
737 {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
738 {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
739 {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
740 {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
741 {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
742 {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
a8ff34e3 743 {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2},
f8a08c34 744
60f58914
HRK		 745 {0x5B, 0x40, 0}, {0x84, 0x88, 0}, {0x85, 0x24, 0}, {0x88, 0x54, 0},
746 {0x8B, 0xB8, 0}, {0x8C, 0x07, 0}, {0x8D, 0x00, 0}, {0x94, 0x1B, 0},
747 {0x95, 0x12, 0}, {0x96, 0x00, 0}, {0x97, 0x06, 0}, {0x9D, 0x1A, 0},
748 {0x9F, 0x10, 0}, {0xB4, 0x22, 0}, {0xBE, 0x80, 0}, {0xDB, 0x00, 0},
749 {0xEE, 0x00, 0}, {0x4C, 0x00, 2},
f8a08c34 750
a027087a
LF		 751 {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0}, {0x8E, 0x08, 0},
752 {0x8F, 0x00, 0}
f8a08c34
HTL		 753};
754
755static int rtl8187b_init_hw(struct ieee80211_hw *dev)
756{
757 struct rtl8187_priv *priv = dev->priv;
758 int res, i;
759 u8 reg;
760
0bf198eb 761 rtl8187_set_anaparam(priv, true);
f8a08c34 762
896cae65
HRK		 763 /* Reset PLL sequence on 8187B. Realtek note: reduces power
764 * consumption about 30 mA */
765 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
766 reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
767 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
768 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));
769
f8a08c34
HTL		 770 res = rtl8187_cmd_reset(dev);
771 if (res)
772 return res;
773
daeeb074
HRK		 774 rtl8187_set_anaparam(priv, true);
775
60f58914
HRK		 776 /* BRSR (Basic Rate Set Register) on 8187B looks to be the same as
777 * RESP_RATE on 8187L in Realtek sources: each bit should be each
778 * one of the 12 rates, all are enabled */
779 rtl818x_iowrite16(priv, (__le16 *)0xFF34, 0x0FFF);
780
f8a08c34
HTL		 781 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
782 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
783 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
f8a08c34 784
327571ea 785 /* Auto Rate Fallback Register (ARFR): 1M-54M setting */
f8a08c34 786 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
327571ea 787 rtl818x_iowrite8_idx(priv, (u8 *)0xFFE2, 0x00, 1);
f8a08c34 788
f8a08c34
HTL		 789 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);
790
791 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
792 RTL818X_EEPROM_CMD_CONFIG);
793 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
794 rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
795 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
796 RTL818X_EEPROM_CMD_NORMAL);
797
798 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
799 for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
800 rtl818x_iowrite8_idx(priv,
801 (u8 *)(uintptr_t)
802 (rtl8187b_reg_table[i][0] | 0xFF00),
803 rtl8187b_reg_table[i][1],
804 rtl8187b_reg_table[i][2]);
805 }
806
807 rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
808 rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
809
810 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
811 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
812 rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);
813
814 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);
815
a8ff34e3 816 /* RFSW_CTRL register */
f8a08c34
HTL		 817 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
818
f8a08c34
HTL		 819 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
820 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
821 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
2f20596b 822 msleep(100);
f8a08c34
HTL		 823
824 priv->rf->init(dev);
825
826 reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
827 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
828 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
829
830 rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
831 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
832 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
833 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
834 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
835 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
836 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
837
838 reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
839 rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
840 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
841 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
842 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
843 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
844 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
845 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
846 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
847 rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
848 rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
849 rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
850 rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);
851
852 rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);
853
854 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);
855
b4572a92
HRK		 856 priv->slot_time = 0x9;
857 priv->aifsn[0] = 2; /* AIFSN[AC_VO] */
858 priv->aifsn[1] = 2; /* AIFSN[AC_VI] */
859 priv->aifsn[2] = 7; /* AIFSN[AC_BK] */
860 priv->aifsn[3] = 3; /* AIFSN[AC_BE] */
861 rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0);
862
1a9937b7
HRK		 863 /* ENEDCA flag must always be set, transmit issues? */
864 rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_ENEDCA);
865
f8a08c34
HTL		 866 return 0;
867}
868
2f47690e
LF		 869static void rtl8187_work(struct work_struct *work)
870{
871 /* The RTL8187 returns the retry count through register 0xFFFA. In
872 * addition, it appears to be a cumulative retry count, not the
873 * value for the current TX packet. When multiple TX entries are
874 * queued, the retry count will be valid for the last one in the queue.
875 * The "error" should not matter for purposes of rate setting. */
876 struct rtl8187_priv *priv = container_of(work, struct rtl8187_priv,
877 work.work);
878 struct ieee80211_tx_info *info;
879 struct ieee80211_hw *dev = priv->dev;
880 static u16 retry;
881 u16 tmp;
882
883 mutex_lock(&priv->conf_mutex);
884 tmp = rtl818x_ioread16(priv, (__le16 *)0xFFFA);
885 while (skb_queue_len(&priv->b_tx_status.queue) > 0) {
886 struct sk_buff *old_skb;
887
888 old_skb = skb_dequeue(&priv->b_tx_status.queue);
889 info = IEEE80211_SKB_CB(old_skb);
890 info->status.rates[0].count = tmp - retry + 1;
891 ieee80211_tx_status_irqsafe(dev, old_skb);
892 }
893 retry = tmp;
894 mutex_unlock(&priv->conf_mutex);
895}
896
4150c572 897static int rtl8187_start(struct ieee80211_hw *dev)
605bebe2
MW		 898{
899 struct rtl8187_priv *priv = dev->priv;
900 u32 reg;
901 int ret;
902
ca9152e3
HRK		 903 mutex_lock(&priv->conf_mutex);
904
f8a08c34
HTL		 905 ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
906 rtl8187b_init_hw(dev);
605bebe2 907 if (ret)
ca9152e3 908 goto rtl8187_start_exit;
c1db52b9
LF		 909
910 init_usb_anchor(&priv->anchored);
2f47690e 911 priv->dev = dev;
c1db52b9 912
f8a08c34
HTL		 913 if (priv->is_rtl8187b) {
914 reg = RTL818X_RX_CONF_MGMT |
915 RTL818X_RX_CONF_DATA |
916 RTL818X_RX_CONF_BROADCAST |
917 RTL818X_RX_CONF_NICMAC |
918 RTL818X_RX_CONF_BSSID |
919 (7 << 13 /* RX FIFO threshold NONE */) |
920 (7 << 10 /* MAX RX DMA */) |
921 RTL818X_RX_CONF_RX_AUTORESETPHY |
922 RTL818X_RX_CONF_ONLYERLPKT |
923 RTL818X_RX_CONF_MULTICAST;
924 priv->rx_conf = reg;
925 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
926
19999792
TLSC		 927 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
928 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
929 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
930 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
931 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
932
f8a08c34
HTL		 933 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
934 RTL818X_TX_CONF_HW_SEQNUM |
935 RTL818X_TX_CONF_DISREQQSIZE |
936 (7 << 8 /* short retry limit */) |
937 (7 << 0 /* long retry limit */) |
938 (7 << 21 /* MAX TX DMA */));
939 rtl8187_init_urbs(dev);
3517afde 940 rtl8187b_init_status_urb(dev);
ca9152e3 941 goto rtl8187_start_exit;
f8a08c34
HTL		 942 }
943
605bebe2
MW		 944 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
945
2fe14263
MW		 946 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
947 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
948
605bebe2
MW		 949 rtl8187_init_urbs(dev);
950
951 reg = RTL818X_RX_CONF_ONLYERLPKT |
952 RTL818X_RX_CONF_RX_AUTORESETPHY |
953 RTL818X_RX_CONF_BSSID |
954 RTL818X_RX_CONF_MGMT |
605bebe2
MW		 955 RTL818X_RX_CONF_DATA |
956 (7 << 13 /* RX FIFO threshold NONE */) |
957 (7 << 10 /* MAX RX DMA */) |
958 RTL818X_RX_CONF_BROADCAST |
605bebe2 959 RTL818X_RX_CONF_NICMAC;
605bebe2 960
4150c572 961 priv->rx_conf = reg;
605bebe2
MW		 962 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
963
964 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
965 reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
966 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
967 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
968
969 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
970 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
971 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
972 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
973 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
974
975 reg = RTL818X_TX_CONF_CW_MIN |
976 (7 << 21 /* MAX TX DMA */) |
977 RTL818X_TX_CONF_NO_ICV;
978 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
979
980 reg = rtl818x_ioread8(priv, &priv->map->CMD);
981 reg |= RTL818X_CMD_TX_ENABLE;
982 reg |= RTL818X_CMD_RX_ENABLE;
983 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
2f47690e 984 INIT_DELAYED_WORK(&priv->work, rtl8187_work);
605bebe2 985
ca9152e3
HRK		 986rtl8187_start_exit:
987 mutex_unlock(&priv->conf_mutex);
988 return ret;
605bebe2
MW		 989}
990
4150c572 991static void rtl8187_stop(struct ieee80211_hw *dev)
605bebe2
MW		 992{
993 struct rtl8187_priv *priv = dev->priv;
605bebe2
MW		 994 struct sk_buff *skb;
995 u32 reg;
996
7dcdd073 997 mutex_lock(&priv->conf_mutex);
605bebe2
MW		 998 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
999
1000 reg = rtl818x_ioread8(priv, &priv->map->CMD);
1001 reg &= ~RTL818X_CMD_TX_ENABLE;
1002 reg &= ~RTL818X_CMD_RX_ENABLE;
1003 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
1004
f6532111 1005 priv->rf->stop(dev);
0bf198eb 1006 rtl8187_set_anaparam(priv, false);
605bebe2
MW		 1007
1008 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1009 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
1010 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
1011 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1012
3517afde
HRK		 1013 while ((skb = skb_dequeue(&priv->b_tx_status.queue)))
1014 dev_kfree_skb_any(skb);
c1db52b9
LF		 1015
1016 usb_kill_anchored_urbs(&priv->anchored);
6a8171f2
HRK		 1017 mutex_unlock(&priv->conf_mutex);
1018
2f47690e
LF		 1019 if (!priv->is_rtl8187b)
1020 cancel_delayed_work_sync(&priv->work);
605bebe2
MW		 1021}
1022
1023static int rtl8187_add_interface(struct ieee80211_hw *dev,
1ed32e4f 1024 struct ieee80211_vif *vif)
605bebe2
MW		 1025{
1026 struct rtl8187_priv *priv = dev->priv;
4150c572 1027 int i;
66aafd9a 1028 int ret = -EOPNOTSUPP;
605bebe2 1029
66aafd9a 1030 mutex_lock(&priv->conf_mutex);
d30506e0 1031 if (priv->vif)
66aafd9a 1032 goto exit;
605bebe2 1033
1ed32e4f 1034 switch (vif->type) {
05c914fe 1035 case NL80211_IFTYPE_STATION:
605bebe2
MW		 1036 break;
1037 default:
66aafd9a 1038 goto exit;
605bebe2
MW		 1039 }
1040
66aafd9a 1041 ret = 0;
1ed32e4f 1042 priv->vif = vif;
aa979a6a 1043
4150c572
JB		 1044 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1045 for (i = 0; i < ETH_ALEN; i++)
1046 rtl818x_iowrite8(priv, &priv->map->MAC[i],
1ed32e4f 1047 ((u8 *)vif->addr)[i]);
4150c572 1048 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
605bebe2 1049
66aafd9a 1050exit:
7dcdd073 1051 mutex_unlock(&priv->conf_mutex);
66aafd9a 1052 return ret;
605bebe2
MW		 1053}
1054
1055static void rtl8187_remove_interface(struct ieee80211_hw *dev,
1ed32e4f 1056 struct ieee80211_vif *vif)
605bebe2
MW		 1057{
1058 struct rtl8187_priv *priv = dev->priv;
7dcdd073 1059 mutex_lock(&priv->conf_mutex);
aa979a6a 1060 priv->vif = NULL;
7dcdd073 1061 mutex_unlock(&priv->conf_mutex);
605bebe2
MW		 1062}
1063
e8975581 1064static int rtl8187_config(struct ieee80211_hw *dev, u32 changed)
605bebe2
MW		 1065{
1066 struct rtl8187_priv *priv = dev->priv;
e8975581 1067 struct ieee80211_conf *conf = &dev->conf;
f6532111
MW		 1068 u32 reg;
1069
7dcdd073 1070 mutex_lock(&priv->conf_mutex);
f6532111
MW		 1071 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1072 /* Enable TX loopback on MAC level to avoid TX during channel
1073 * changes, as this has be seen to causes problems and the
1074 * card will stop work until next reset
1075 */
1076 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
1077 reg | RTL818X_TX_CONF_LOOPBACK_MAC);
f6532111
MW		 1078 priv->rf->set_chan(dev, conf);
1079 msleep(10);
1080 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
605bebe2 1081
605bebe2
MW		 1082 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
1083 rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
1084 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
1085 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
7dcdd073 1086 mutex_unlock(&priv->conf_mutex);
605bebe2
MW		 1087 return 0;
1088}
1089
b4572a92
HRK		 1090/*
1091 * With 8187B, AC_*_PARAM clashes with FEMR definition in struct rtl818x_csr for
1092 * example. Thus we have to use raw values for AC_*_PARAM register addresses.
1093 */
1094static __le32 *rtl8187b_ac_addr[4] = {
1095 (__le32 *) 0xFFF0, /* AC_VO */
1096 (__le32 *) 0xFFF4, /* AC_VI */
1097 (__le32 *) 0xFFFC, /* AC_BK */
1098 (__le32 *) 0xFFF8, /* AC_BE */
1099};
1100
1101#define SIFS_TIME 0xa
1102
f8288317
HRK		 1103static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot,
1104 bool use_short_preamble)
64761077 1105{
f8288317 1106 if (priv->is_rtl8187b) {
b4572a92 1107 u8 difs, eifs;
f8288317 1108 u16 ack_timeout;
b4572a92 1109 int queue;
f8288317
HRK		 1110
1111 if (use_short_slot) {
b4572a92 1112 priv->slot_time = 0x9;
f8288317
HRK		 1113 difs = 0x1c;
1114 eifs = 0x53;
1115 } else {
b4572a92 1116 priv->slot_time = 0x14;
f8288317
HRK		 1117 difs = 0x32;
1118 eifs = 0x5b;
1119 }
54ac218a 1120 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
b4572a92 1121 rtl818x_iowrite8(priv, &priv->map->SLOT, priv->slot_time);
f8288317
HRK		 1122 rtl818x_iowrite8(priv, &priv->map->DIFS, difs);
1123
1124 /*
1125 * BRSR+1 on 8187B is in fact EIFS register
1126 * Value in units of 4 us
1127 */
1128 rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs);
1129
1130 /*
1131 * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout
1132 * register. In units of 4 us like eifs register
1133 * ack_timeout = ack duration + plcp + difs + preamble
1134 */
1135 ack_timeout = 112 + 48 + difs;
1136 if (use_short_preamble)
1137 ack_timeout += 72;
1138 else
1139 ack_timeout += 144;
1140 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER,
1141 DIV_ROUND_UP(ack_timeout, 4));
b4572a92
HRK		 1142
1143 for (queue = 0; queue < 4; queue++)
1144 rtl818x_iowrite8(priv, (u8 *) rtl8187b_ac_addr[queue],
1145 priv->aifsn[queue] * priv->slot_time +
1146 SIFS_TIME);
f8288317 1147 } else {
64761077
HRK		 1148 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
1149 if (use_short_slot) {
1150 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
1151 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
1152 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
64761077
HRK		 1153 } else {
1154 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
1155 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
1156 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
64761077
HRK		 1157 }
1158 }
1159}
1160
1161static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
1162 struct ieee80211_vif *vif,
1163 struct ieee80211_bss_conf *info,
1164 u32 changed)
1165{
1166 struct rtl8187_priv *priv = dev->priv;
2d0ddec5
JB		 1167 int i;
1168 u8 reg;
1169
1170 if (changed & BSS_CHANGED_BSSID) {
1171 mutex_lock(&priv->conf_mutex);
1172 for (i = 0; i < ETH_ALEN; i++)
1173 rtl818x_iowrite8(priv, &priv->map->BSSID[i],
1174 info->bssid[i]);
1175
1a9937b7
HRK		 1176 if (priv->is_rtl8187b)
1177 reg = RTL818X_MSR_ENEDCA;
1178 else
1179 reg = 0;
1180
31a5cdda 1181 if (is_valid_ether_addr(info->bssid))
1a9937b7 1182 reg |= RTL818X_MSR_INFRA;
31a5cdda 1183 else
1a9937b7 1184 reg |= RTL818X_MSR_NO_LINK;
31a5cdda
JL		 1185
1186 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
2d0ddec5
JB		 1187
1188 mutex_unlock(&priv->conf_mutex);
1189 }
64761077 1190
f8288317
HRK		 1191 if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE))
1192 rtl8187_conf_erp(priv, info->use_short_slot,
1193 info->use_short_preamble);
64761077
HRK		 1194}
1195
3ac64bee 1196static u64 rtl8187_prepare_multicast(struct ieee80211_hw *dev,
22bedad3 1197 struct netdev_hw_addr_list *mc_list)
3ac64bee 1198{
22bedad3 1199 return netdev_hw_addr_list_count(mc_list);
3ac64bee
JB		 1200}
1201
4150c572
JB		 1202static void rtl8187_configure_filter(struct ieee80211_hw *dev,
1203 unsigned int changed_flags,
1204 unsigned int *total_flags,
3ac64bee 1205 u64 multicast)
4150c572
JB		 1206{
1207 struct rtl8187_priv *priv = dev->priv;
1208
4150c572
JB		 1209 if (changed_flags & FIF_FCSFAIL)
1210 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
1211 if (changed_flags & FIF_CONTROL)
1212 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
1213 if (changed_flags & FIF_OTHER_BSS)
1214 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
3ac64bee 1215 if (*total_flags & FIF_ALLMULTI || multicast > 0)
4150c572 1216 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
2fe14263
MW		 1217 else
1218 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
1219
1220 *total_flags = 0;
4150c572 1221
4150c572
JB		 1222 if (priv->rx_conf & RTL818X_RX_CONF_FCS)
1223 *total_flags |= FIF_FCSFAIL;
1224 if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
1225 *total_flags |= FIF_CONTROL;
1226 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
1227 *total_flags |= FIF_OTHER_BSS;
2fe14263
MW		 1228 if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
1229 *total_flags |= FIF_ALLMULTI;
4150c572
JB		 1230
1231 rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
1232}
1233
b4572a92
HRK		 1234static int rtl8187_conf_tx(struct ieee80211_hw *dev, u16 queue,
1235 const struct ieee80211_tx_queue_params *params)
1236{
1237 struct rtl8187_priv *priv = dev->priv;
1238 u8 cw_min, cw_max;
1239
1240 if (queue > 3)
1241 return -EINVAL;
1242
1243 cw_min = fls(params->cw_min);
1244 cw_max = fls(params->cw_max);
1245
1246 if (priv->is_rtl8187b) {
1247 priv->aifsn[queue] = params->aifs;
1248
1249 /*
1250 * This is the structure of AC_*_PARAM registers in 8187B:
1251 * - TXOP limit field, bit offset = 16
1252 * - ECWmax, bit offset = 12
1253 * - ECWmin, bit offset = 8
1254 * - AIFS, bit offset = 0
1255 */
1256 rtl818x_iowrite32(priv, rtl8187b_ac_addr[queue],
1257 (params->txop << 16) | (cw_max << 12) |
1258 (cw_min << 8) | (params->aifs *
1259 priv->slot_time + SIFS_TIME));
1260 } else {
1261 if (queue != 0)
1262 return -EINVAL;
1263
1264 rtl818x_iowrite8(priv, &priv->map->CW_VAL,
1265 cw_min | (cw_max << 4));
1266 }
1267 return 0;
1268}
1269
22e16e55
LF		 1270static u64 rtl8187_get_tsf(struct ieee80211_hw *dev)
1271{
1272 struct rtl8187_priv *priv = dev->priv;
1273
1274 return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
1275 (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
1276}
1277
605bebe2
MW		 1278static const struct ieee80211_ops rtl8187_ops = {
1279 .tx = rtl8187_tx,
4150c572 1280 .start = rtl8187_start,
605bebe2
MW		 1281 .stop = rtl8187_stop,
1282 .add_interface = rtl8187_add_interface,
1283 .remove_interface = rtl8187_remove_interface,
1284 .config = rtl8187_config,
64761077 1285 .bss_info_changed = rtl8187_bss_info_changed,
3ac64bee 1286 .prepare_multicast = rtl8187_prepare_multicast,
4150c572 1287 .configure_filter = rtl8187_configure_filter,
ca9152e3 1288 .conf_tx = rtl8187_conf_tx,
22e16e55
LF		 1289 .rfkill_poll = rtl8187_rfkill_poll,
1290 .get_tsf = rtl8187_get_tsf,
605bebe2
MW		 1291};
1292
1293static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
1294{
1295 struct ieee80211_hw *dev = eeprom->data;
1296 struct rtl8187_priv *priv = dev->priv;
1297 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1298
1299 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
1300 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
1301 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
1302 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
1303}
1304
1305static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
1306{
1307 struct ieee80211_hw *dev = eeprom->data;
1308 struct rtl8187_priv *priv = dev->priv;
1309 u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
1310
1311 if (eeprom->reg_data_in)
1312 reg |= RTL818X_EEPROM_CMD_WRITE;
1313 if (eeprom->reg_data_out)
1314 reg |= RTL818X_EEPROM_CMD_READ;
1315 if (eeprom->reg_data_clock)
1316 reg |= RTL818X_EEPROM_CMD_CK;
1317 if (eeprom->reg_chip_select)
1318 reg |= RTL818X_EEPROM_CMD_CS;
1319
1320 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
1321 udelay(10);
1322}
1323
1324static int __devinit rtl8187_probe(struct usb_interface *intf,
1325 const struct usb_device_id *id)
1326{
1327 struct usb_device *udev = interface_to_usbdev(intf);
1328 struct ieee80211_hw *dev;
1329 struct rtl8187_priv *priv;
1330 struct eeprom_93cx6 eeprom;
1331 struct ieee80211_channel *channel;
6f7853f3 1332 const char *chip_name;
605bebe2 1333 u16 txpwr, reg;
70d57139 1334 u16 product_id = le16_to_cpu(udev->descriptor.idProduct);
605bebe2 1335 int err, i;
f2c98382 1336 u8 mac_addr[ETH_ALEN];
605bebe2
MW		 1337
1338 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
1339 if (!dev) {
1340 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
1341 return -ENOMEM;
1342 }
1343
1344 priv = dev->priv;
0e25b4ef 1345 priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
605bebe2 1346
9be6f0d4
JL		 1347 /* allocate "DMA aware" buffer for register accesses */
1348 priv->io_dmabuf = kmalloc(sizeof(*priv->io_dmabuf), GFP_KERNEL);
1349 if (!priv->io_dmabuf) {
1350 err = -ENOMEM;
1351 goto err_free_dev;
1352 }
1353 mutex_init(&priv->io_mutex);
1354
605bebe2
MW		 1355 SET_IEEE80211_DEV(dev, &intf->dev);
1356 usb_set_intfdata(intf, dev);
1357 priv->udev = udev;
1358
1359 usb_get_dev(udev);
1360
1361 skb_queue_head_init(&priv->rx_queue);
8318d78a
JB		 1362
1363 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
1364 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
1365
605bebe2
MW		 1366 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
1367 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
1368 priv->map = (struct rtl818x_csr *)0xFF00;
8318d78a
JB		 1369
1370 priv->band.band = IEEE80211_BAND_2GHZ;
1371 priv->band.channels = priv->channels;
1372 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
1373 priv->band.bitrates = priv->rates;
1374 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1375 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
1376
1377
605bebe2 1378 dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
a7db74f4 1379 IEEE80211_HW_SIGNAL_DBM |
0ccd58fc 1380 IEEE80211_HW_RX_INCLUDES_FCS;
605bebe2 1381
605bebe2
MW		 1382 eeprom.data = dev;
1383 eeprom.register_read = rtl8187_eeprom_register_read;
1384 eeprom.register_write = rtl8187_eeprom_register_write;
1385 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1386 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1387 else
1388 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1389
1390 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1391 udelay(10);
1392
1393 eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
f2c98382
JL		 1394 (__le16 __force *)mac_addr, 3);
1395 if (!is_valid_ether_addr(mac_addr)) {
605bebe2
MW		 1396 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
1397 "generated MAC address\n");
f2c98382 1398 random_ether_addr(mac_addr);
605bebe2 1399 }
f2c98382 1400 SET_IEEE80211_PERM_ADDR(dev, mac_addr);
605bebe2
MW		 1401
1402 channel = priv->channels;
1403 for (i = 0; i < 3; i++) {
1404 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
1405 &txpwr);
8318d78a
JB		 1406 (*channel++).hw_value = txpwr & 0xFF;
1407 (*channel++).hw_value = txpwr >> 8;
605bebe2
MW		 1408 }
1409 for (i = 0; i < 2; i++) {
1410 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
1411 &txpwr);
8318d78a
JB		 1412 (*channel++).hw_value = txpwr & 0xFF;
1413 (*channel++).hw_value = txpwr >> 8;
605bebe2 1414 }
605bebe2
MW		 1415
1416 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
1417 &priv->txpwr_base);
1418
f6532111
MW		 1419 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
1420 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
605bebe2
MW		 1421 /* 0 means asic B-cut, we should use SW 3 wire
1422 * bit-by-bit banging for radio. 1 means we can use
1423 * USB specific request to write radio registers */
1424 priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
f6532111 1425 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
605bebe2
MW		 1426 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1427
6f7853f3
HTL		 1428 if (!priv->is_rtl8187b) {
1429 u32 reg32;
1430 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1431 reg32 &= RTL818X_TX_CONF_HWVER_MASK;
1432 switch (reg32) {
0e25b4ef
LF		 1433 case RTL818X_TX_CONF_R8187vD_B:
1434 /* Some RTL8187B devices have a USB ID of 0x8187
1435 * detect them here */
1436 chip_name = "RTL8187BvB(early)";
1437 priv->is_rtl8187b = 1;
1438 priv->hw_rev = RTL8187BvB;
1439 break;
1440 case RTL818X_TX_CONF_R8187vD:
6f7853f3
HTL		 1441 chip_name = "RTL8187vD";
1442 break;
1443 default:
1444 chip_name = "RTL8187vB (default)";
1445 }
1446 } else {
6f7853f3
HTL		 1447 /*
1448 * Force USB request to write radio registers for 8187B, Realtek
1449 * only uses it in their sources
1450 */
1451 /*if (priv->asic_rev == 0) {
1452 printk(KERN_WARNING "rtl8187: Forcing use of USB "
1453 "requests to write to radio registers\n");
1454 priv->asic_rev = 1;
1455 }*/
1456 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
1457 case RTL818X_R8187B_B:
1458 chip_name = "RTL8187BvB";
1459 priv->hw_rev = RTL8187BvB;
1460 break;
1461 case RTL818X_R8187B_D:
1462 chip_name = "RTL8187BvD";
1463 priv->hw_rev = RTL8187BvD;
1464 break;
1465 case RTL818X_R8187B_E:
1466 chip_name = "RTL8187BvE";
1467 priv->hw_rev = RTL8187BvE;
1468 break;
1469 default:
1470 chip_name = "RTL8187BvB (default)";
1471 priv->hw_rev = RTL8187BvB;
1472 }
1473 }
1474
0e25b4ef
LF		 1475 if (!priv->is_rtl8187b) {
1476 for (i = 0; i < 2; i++) {
1477 eeprom_93cx6_read(&eeprom,
1478 RTL8187_EEPROM_TXPWR_CHAN_6 + i,
1479 &txpwr);
1480 (*channel++).hw_value = txpwr & 0xFF;
1481 (*channel++).hw_value = txpwr >> 8;
1482 }
1483 } else {
1484 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
1485 &txpwr);
1486 (*channel++).hw_value = txpwr & 0xFF;
1487
1488 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
1489 (*channel++).hw_value = txpwr & 0xFF;
1490
1491 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
1492 (*channel++).hw_value = txpwr & 0xFF;
1493 (*channel++).hw_value = txpwr >> 8;
1494 }
70d57139
LF		 1495 /* Handle the differing rfkill GPIO bit in different models */
1496 priv->rfkill_mask = RFKILL_MASK_8187_89_97;
1497 if (product_id == 0x8197 || product_id == 0x8198) {
1498 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_SELECT_GPIO, &reg);
1499 if (reg & 0xFF00)
1500 priv->rfkill_mask = RFKILL_MASK_8198;
1501 }
0e25b4ef 1502
94778280
JB		 1503 /*
1504 * XXX: Once this driver supports anything that requires
1505 * beacons it must implement IEEE80211_TX_CTL_ASSIGN_SEQ.
1506 */
f59ac048
LR		 1507 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1508
0e25b4ef
LF		 1509 if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
1510 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
1511 " info!\n");
1512
f6532111 1513 priv->rf = rtl8187_detect_rf(dev);
0e25b4ef
LF		 1514 dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
1515 sizeof(struct rtl8187_tx_hdr) :
1516 sizeof(struct rtl8187b_tx_hdr);
1517 if (!priv->is_rtl8187b)
1518 dev->queues = 1;
1519 else
1520 dev->queues = 4;
605bebe2
MW		 1521
1522 err = ieee80211_register_hw(dev);
1523 if (err) {
1524 printk(KERN_ERR "rtl8187: Cannot register device\n");
9be6f0d4 1525 goto err_free_dmabuf;
605bebe2 1526 }
7dcdd073 1527 mutex_init(&priv->conf_mutex);
3517afde 1528 skb_queue_head_init(&priv->b_tx_status.queue);
605bebe2 1529
5db55844 1530 wiphy_info(dev->wiphy, "hwaddr %pM, %s V%d + %s, rfkill mask %d\n",
c96c31e4
JP		 1531 mac_addr, chip_name, priv->asic_rev, priv->rf->name,
1532 priv->rfkill_mask);
605bebe2 1533
a027087a
LF		 1534#ifdef CONFIG_RTL8187_LEDS
1535 eeprom_93cx6_read(&eeprom, 0x3F, &reg);
1536 reg &= 0xFF;
1537 rtl8187_leds_init(dev, reg);
1538#endif
ca9152e3 1539 rtl8187_rfkill_init(dev);
a027087a 1540
605bebe2
MW		 1541 return 0;
1542
9be6f0d4
JL		 1543 err_free_dmabuf:
1544 kfree(priv->io_dmabuf);
605bebe2
MW		 1545 err_free_dev:
1546 ieee80211_free_hw(dev);
1547 usb_set_intfdata(intf, NULL);
1548 usb_put_dev(udev);
1549 return err;
1550}
1551
1552static void __devexit rtl8187_disconnect(struct usb_interface *intf)
1553{
1554 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1555 struct rtl8187_priv *priv;
1556
1557 if (!dev)
1558 return;
1559
a027087a
LF		 1560#ifdef CONFIG_RTL8187_LEDS
1561 rtl8187_leds_exit(dev);
1562#endif
ca9152e3 1563 rtl8187_rfkill_exit(dev);
605bebe2
MW		 1564 ieee80211_unregister_hw(dev);
1565
1566 priv = dev->priv;
d6e2be98 1567 usb_reset_device(priv->udev);
605bebe2 1568 usb_put_dev(interface_to_usbdev(intf));
9be6f0d4 1569 kfree(priv->io_dmabuf);
605bebe2
MW		 1570 ieee80211_free_hw(dev);
1571}
1572
1573static struct usb_driver rtl8187_driver = {
1574 .name = KBUILD_MODNAME,
1575 .id_table = rtl8187_table,
1576 .probe = rtl8187_probe,
500c1197 1577 .disconnect = __devexit_p(rtl8187_disconnect),
605bebe2
MW		 1578};
1579
1580static int __init rtl8187_init(void)
1581{
1582 return usb_register(&rtl8187_driver);
1583}
1584
1585static void __exit rtl8187_exit(void)
1586{
1587 usb_deregister(&rtl8187_driver);
1588}
1589
1590module_init(rtl8187_init);
1591module_exit(rtl8187_exit);
Linux kernel - Deliverables
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