2 * Linux device driver for RTL8187
4 * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
5 * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
7 * Based on the r8187 driver, which is:
8 * Copyright 2005 Andrea Merello <andreamrl@tiscali.it>, et al.
10 * Magic delays and register offsets below are taken from the original
11 * r8187 driver sources. Thanks to Realtek for their support!
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
18 #include <linux/init.h>
19 #include <linux/usb.h>
20 #include <linux/delay.h>
21 #include <linux/etherdevice.h>
22 #include <linux/eeprom_93cx6.h>
23 #include <net/mac80211.h>
26 #include "rtl8187_rtl8225.h"
28 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
29 MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
30 MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
31 MODULE_LICENSE("GPL");
33 static struct usb_device_id rtl8187_table[] __devinitdata = {
35 {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
37 {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B},
39 {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
40 {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
41 {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
42 {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B},
44 {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
45 {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
46 {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B},
48 {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
50 {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
51 {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
53 {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187},
57 MODULE_DEVICE_TABLE(usb, rtl8187_table);
59 static const struct ieee80211_rate rtl818x_rates[] = {
60 { .bitrate = 10, .hw_value = 0, },
61 { .bitrate = 20, .hw_value = 1, },
62 { .bitrate = 55, .hw_value = 2, },
63 { .bitrate = 110, .hw_value = 3, },
64 { .bitrate = 60, .hw_value = 4, },
65 { .bitrate = 90, .hw_value = 5, },
66 { .bitrate = 120, .hw_value = 6, },
67 { .bitrate = 180, .hw_value = 7, },
68 { .bitrate = 240, .hw_value = 8, },
69 { .bitrate = 360, .hw_value = 9, },
70 { .bitrate = 480, .hw_value = 10, },
71 { .bitrate = 540, .hw_value = 11, },
74 static const struct ieee80211_channel rtl818x_channels[] = {
75 { .center_freq = 2412 },
76 { .center_freq = 2417 },
77 { .center_freq = 2422 },
78 { .center_freq = 2427 },
79 { .center_freq = 2432 },
80 { .center_freq = 2437 },
81 { .center_freq = 2442 },
82 { .center_freq = 2447 },
83 { .center_freq = 2452 },
84 { .center_freq = 2457 },
85 { .center_freq = 2462 },
86 { .center_freq = 2467 },
87 { .center_freq = 2472 },
88 { .center_freq = 2484 },
91 static void rtl8187_iowrite_async_cb(struct urb *urb)
97 static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
100 struct usb_ctrlrequest *dr;
102 struct rtl8187_async_write_data {
104 struct usb_ctrlrequest dr;
108 buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
112 urb = usb_alloc_urb(0, GFP_ATOMIC);
120 dr->bRequestType = RTL8187_REQT_WRITE;
121 dr->bRequest = RTL8187_REQ_SET_REG;
124 dr->wLength = cpu_to_le16(len);
126 memcpy(buf, data, len);
128 usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
129 (unsigned char *)dr, buf, len,
130 rtl8187_iowrite_async_cb, buf);
131 rc = usb_submit_urb(urb, GFP_ATOMIC);
138 static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
139 __le32 *addr, u32 val)
141 __le32 buf = cpu_to_le32(val);
143 rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
147 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
149 struct rtl8187_priv *priv = dev->priv;
154 rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
155 rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
156 rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
157 rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
160 static void rtl8187_tx_cb(struct urb *urb)
162 struct sk_buff *skb = (struct sk_buff *)urb->context;
163 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
164 struct ieee80211_hw *hw = info->rate_driver_data[0];
165 struct rtl8187_priv *priv = hw->priv;
167 usb_free_urb(info->rate_driver_data[1]);
168 skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
169 sizeof(struct rtl8187_tx_hdr));
170 ieee80211_tx_info_clear_status(info);
171 info->flags |= IEEE80211_TX_STAT_ACK;
172 ieee80211_tx_status_irqsafe(hw, skb);
175 static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
177 struct rtl8187_priv *priv = dev->priv;
178 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
186 urb = usb_alloc_urb(0, GFP_ATOMIC);
193 flags |= RTL818X_TX_DESC_FLAG_NO_ENC;
195 flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
196 if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
197 flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
198 if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
199 flags |= RTL818X_TX_DESC_FLAG_RTS;
200 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
201 rts_dur = ieee80211_rts_duration(dev, priv->vif,
203 } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
204 flags |= RTL818X_TX_DESC_FLAG_CTS;
205 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
208 if (!priv->is_rtl8187b) {
209 struct rtl8187_tx_hdr *hdr =
210 (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
211 hdr->flags = cpu_to_le32(flags);
213 hdr->rts_duration = rts_dur;
214 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
219 /* fc needs to be calculated before skb_push() */
220 unsigned int epmap[4] = { 6, 7, 5, 4 };
221 struct ieee80211_hdr *tx_hdr =
222 (struct ieee80211_hdr *)(skb->data);
223 u16 fc = le16_to_cpu(tx_hdr->frame_control);
225 struct rtl8187b_tx_hdr *hdr =
226 (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
227 struct ieee80211_rate *txrate =
228 ieee80211_get_tx_rate(dev, info);
229 memset(hdr, 0, sizeof(*hdr));
230 hdr->flags = cpu_to_le32(flags);
231 hdr->rts_duration = rts_dur;
232 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
234 ieee80211_generic_frame_duration(dev, priv->vif,
238 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
241 ep = epmap[skb_get_queue_mapping(skb)];
244 info->rate_driver_data[0] = dev;
245 info->rate_driver_data[1] = urb;
247 usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
248 buf, skb->len, rtl8187_tx_cb, skb);
249 rc = usb_submit_urb(urb, GFP_ATOMIC);
258 static void rtl8187_rx_cb(struct urb *urb)
260 struct sk_buff *skb = (struct sk_buff *)urb->context;
261 struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
262 struct ieee80211_hw *dev = info->dev;
263 struct rtl8187_priv *priv = dev->priv;
264 struct ieee80211_rx_status rx_status = { 0 };
269 spin_lock(&priv->rx_queue.lock);
271 __skb_unlink(skb, &priv->rx_queue);
273 spin_unlock(&priv->rx_queue.lock);
276 spin_unlock(&priv->rx_queue.lock);
278 if (unlikely(urb->status)) {
280 dev_kfree_skb_irq(skb);
284 skb_put(skb, urb->actual_length);
285 if (!priv->is_rtl8187b) {
286 struct rtl8187_rx_hdr *hdr =
287 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
288 flags = le32_to_cpu(hdr->flags);
289 signal = hdr->signal & 0x7f;
290 rx_status.antenna = (hdr->signal >> 7) & 1;
291 rx_status.noise = hdr->noise;
292 rx_status.mactime = le64_to_cpu(hdr->mac_time);
293 priv->quality = signal;
294 rx_status.qual = priv->quality;
295 priv->noise = hdr->noise;
296 rate = (flags >> 20) & 0xF;
297 if (rate > 3) { /* OFDM rate */
300 else if (signal < 25)
302 signal = 90 - signal;
303 } else { /* CCK rate */
306 else if (signal < 30)
308 signal = 95 - signal;
310 rx_status.signal = signal;
311 priv->signal = signal;
313 struct rtl8187b_rx_hdr *hdr =
314 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
315 /* The Realtek datasheet for the RTL8187B shows that the RX
316 * header contains the following quantities: signal quality,
317 * RSSI, AGC, the received power in dB, and the measured SNR.
318 * In testing, none of these quantities show qualitative
319 * agreement with AP signal strength, except for the AGC,
320 * which is inversely proportional to the strength of the
321 * signal. In the following, the quality and signal strength
322 * are derived from the AGC. The arbitrary scaling constants
323 * are chosen to make the results close to the values obtained
324 * for a BCM4312 using b43 as the driver. The noise is ignored
327 flags = le32_to_cpu(hdr->flags);
328 quality = 170 - hdr->agc;
331 signal = 14 - hdr->agc / 2;
332 rx_status.qual = quality;
333 priv->quality = quality;
334 rx_status.signal = signal;
335 priv->signal = signal;
336 rx_status.antenna = (hdr->rssi >> 7) & 1;
337 rx_status.mactime = le64_to_cpu(hdr->mac_time);
338 rate = (flags >> 20) & 0xF;
341 skb_trim(skb, flags & 0x0FFF);
342 rx_status.rate_idx = rate;
343 rx_status.freq = dev->conf.channel->center_freq;
344 rx_status.band = dev->conf.channel->band;
345 rx_status.flag |= RX_FLAG_TSFT;
346 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
347 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
348 ieee80211_rx_irqsafe(dev, skb, &rx_status);
350 skb = dev_alloc_skb(RTL8187_MAX_RX);
351 if (unlikely(!skb)) {
353 /* TODO check rx queue length and refill *somewhere* */
357 info = (struct rtl8187_rx_info *)skb->cb;
360 urb->transfer_buffer = skb_tail_pointer(skb);
362 skb_queue_tail(&priv->rx_queue, skb);
364 usb_submit_urb(urb, GFP_ATOMIC);
367 static int rtl8187_init_urbs(struct ieee80211_hw *dev)
369 struct rtl8187_priv *priv = dev->priv;
372 struct rtl8187_rx_info *info;
374 while (skb_queue_len(&priv->rx_queue) < 8) {
375 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
378 entry = usb_alloc_urb(0, GFP_KERNEL);
383 usb_fill_bulk_urb(entry, priv->udev,
384 usb_rcvbulkpipe(priv->udev,
385 priv->is_rtl8187b ? 3 : 1),
386 skb_tail_pointer(skb),
387 RTL8187_MAX_RX, rtl8187_rx_cb, skb);
388 info = (struct rtl8187_rx_info *)skb->cb;
391 skb_queue_tail(&priv->rx_queue, skb);
392 usb_submit_urb(entry, GFP_KERNEL);
398 static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
400 struct rtl8187_priv *priv = dev->priv;
404 reg = rtl818x_ioread8(priv, &priv->map->CMD);
406 reg |= RTL818X_CMD_RESET;
407 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
412 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
418 printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
422 /* reload registers from eeprom */
423 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
428 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
429 RTL818X_EEPROM_CMD_CONFIG))
434 printk(KERN_ERR "%s: eeprom reset timeout!\n",
435 wiphy_name(dev->wiphy));
442 static int rtl8187_init_hw(struct ieee80211_hw *dev)
444 struct rtl8187_priv *priv = dev->priv;
449 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
450 RTL818X_EEPROM_CMD_CONFIG);
451 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
452 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg |
453 RTL818X_CONFIG3_ANAPARAM_WRITE);
454 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
455 RTL8187_RTL8225_ANAPARAM_ON);
456 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
457 RTL8187_RTL8225_ANAPARAM2_ON);
458 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg &
459 ~RTL818X_CONFIG3_ANAPARAM_WRITE);
460 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
461 RTL818X_EEPROM_CMD_NORMAL);
463 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
466 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
467 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
468 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
471 res = rtl8187_cmd_reset(dev);
475 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
476 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
477 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
478 reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
479 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
480 RTL8187_RTL8225_ANAPARAM_ON);
481 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
482 RTL8187_RTL8225_ANAPARAM2_ON);
483 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
484 reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
485 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
488 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
489 rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
491 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
492 rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
493 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
495 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
497 rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
498 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
501 rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
503 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
505 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
506 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
507 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
509 // TODO: set RESP_RATE and BRSR properly
510 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
511 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
514 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
515 rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
516 reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
517 rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
518 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
519 rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
520 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
521 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
522 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
523 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
526 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
527 rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
528 rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
529 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
530 RTL818X_EEPROM_CMD_CONFIG);
531 rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
532 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
533 RTL818X_EEPROM_CMD_NORMAL);
534 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
539 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
540 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
541 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
542 rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
543 rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
544 rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
545 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
550 static const u8 rtl8187b_reg_table[][3] = {
551 {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
552 {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
553 {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
554 {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},
556 {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
557 {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
558 {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xE0, 0xFF, 1}, {0xE1, 0x0F, 1},
559 {0xE2, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, {0xF2, 0x02, 1},
560 {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, {0xF6, 0x06, 1},
561 {0xF7, 0x07, 1}, {0xF8, 0x08, 1},
563 {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
564 {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
565 {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
566 {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
567 {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
568 {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
569 {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, {0x72, 0x56, 2},
572 {0x34, 0xF0, 0}, {0x35, 0x0F, 0}, {0x5B, 0x40, 0}, {0x84, 0x88, 0},
573 {0x85, 0x24, 0}, {0x88, 0x54, 0}, {0x8B, 0xB8, 0}, {0x8C, 0x07, 0},
574 {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, {0x95, 0x12, 0}, {0x96, 0x00, 0},
575 {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, {0x9F, 0x10, 0}, {0xB4, 0x22, 0},
576 {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, {0xEE, 0x00, 0}, {0x91, 0x03, 0},
578 {0x4C, 0x00, 2}, {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0},
579 {0x8E, 0x08, 0}, {0x8F, 0x00, 0}
582 static int rtl8187b_init_hw(struct ieee80211_hw *dev)
584 struct rtl8187_priv *priv = dev->priv;
588 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
589 RTL818X_EEPROM_CMD_CONFIG);
591 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
592 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE | RTL818X_CONFIG3_GNT_SELECT;
593 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
594 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
595 RTL8187B_RTL8225_ANAPARAM2_ON);
596 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
597 RTL8187B_RTL8225_ANAPARAM_ON);
598 rtl818x_iowrite8(priv, &priv->map->ANAPARAM3,
599 RTL8187B_RTL8225_ANAPARAM3_ON);
601 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
602 reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
603 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
604 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));
606 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
607 reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
608 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
610 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
611 RTL818X_EEPROM_CMD_NORMAL);
613 res = rtl8187_cmd_reset(dev);
617 rtl818x_iowrite16(priv, (__le16 *)0xFF2D, 0x0FFF);
618 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
619 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
620 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
621 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
622 reg |= RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT |
623 RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
624 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
626 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
627 reg = rtl818x_ioread8(priv, &priv->map->RATE_FALLBACK);
628 reg |= RTL818X_RATE_FALLBACK_ENABLE;
629 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, reg);
631 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
632 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
633 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);
635 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
636 RTL818X_EEPROM_CMD_CONFIG);
637 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
638 rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
639 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
640 RTL818X_EEPROM_CMD_NORMAL);
642 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
643 for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
644 rtl818x_iowrite8_idx(priv,
646 (rtl8187b_reg_table[i][0] | 0xFF00),
647 rtl8187b_reg_table[i][1],
648 rtl8187b_reg_table[i][2]);
651 rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
652 rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
654 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
655 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
656 rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);
658 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);
660 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
662 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
663 RTL818X_EEPROM_CMD_CONFIG);
664 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
665 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
666 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
667 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
668 RTL818X_EEPROM_CMD_NORMAL);
670 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
671 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
672 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
677 reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
678 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
679 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
681 rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
682 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
683 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
684 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
685 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
686 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
687 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
689 reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
690 rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
691 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
692 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
693 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
694 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
695 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
696 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
697 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
698 rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
699 rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
700 rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
701 rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);
703 rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);
705 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);
710 static int rtl8187_start(struct ieee80211_hw *dev)
712 struct rtl8187_priv *priv = dev->priv;
716 ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
717 rtl8187b_init_hw(dev);
721 mutex_lock(&priv->conf_mutex);
722 if (priv->is_rtl8187b) {
723 reg = RTL818X_RX_CONF_MGMT |
724 RTL818X_RX_CONF_DATA |
725 RTL818X_RX_CONF_BROADCAST |
726 RTL818X_RX_CONF_NICMAC |
727 RTL818X_RX_CONF_BSSID |
728 (7 << 13 /* RX FIFO threshold NONE */) |
729 (7 << 10 /* MAX RX DMA */) |
730 RTL818X_RX_CONF_RX_AUTORESETPHY |
731 RTL818X_RX_CONF_ONLYERLPKT |
732 RTL818X_RX_CONF_MULTICAST;
734 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
736 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
737 RTL818X_TX_CONF_HW_SEQNUM |
738 RTL818X_TX_CONF_DISREQQSIZE |
739 (7 << 8 /* short retry limit */) |
740 (7 << 0 /* long retry limit */) |
741 (7 << 21 /* MAX TX DMA */));
742 rtl8187_init_urbs(dev);
743 mutex_unlock(&priv->conf_mutex);
747 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
749 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
750 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
752 rtl8187_init_urbs(dev);
754 reg = RTL818X_RX_CONF_ONLYERLPKT |
755 RTL818X_RX_CONF_RX_AUTORESETPHY |
756 RTL818X_RX_CONF_BSSID |
757 RTL818X_RX_CONF_MGMT |
758 RTL818X_RX_CONF_DATA |
759 (7 << 13 /* RX FIFO threshold NONE */) |
760 (7 << 10 /* MAX RX DMA */) |
761 RTL818X_RX_CONF_BROADCAST |
762 RTL818X_RX_CONF_NICMAC;
765 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
767 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
768 reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
769 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
770 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
772 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
773 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
774 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
775 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
776 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
778 reg = RTL818X_TX_CONF_CW_MIN |
779 (7 << 21 /* MAX TX DMA */) |
780 RTL818X_TX_CONF_NO_ICV;
781 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
783 reg = rtl818x_ioread8(priv, &priv->map->CMD);
784 reg |= RTL818X_CMD_TX_ENABLE;
785 reg |= RTL818X_CMD_RX_ENABLE;
786 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
787 mutex_unlock(&priv->conf_mutex);
792 static void rtl8187_stop(struct ieee80211_hw *dev)
794 struct rtl8187_priv *priv = dev->priv;
795 struct rtl8187_rx_info *info;
799 mutex_lock(&priv->conf_mutex);
800 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
802 reg = rtl818x_ioread8(priv, &priv->map->CMD);
803 reg &= ~RTL818X_CMD_TX_ENABLE;
804 reg &= ~RTL818X_CMD_RX_ENABLE;
805 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
809 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
810 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
811 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
812 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
814 while ((skb = skb_dequeue(&priv->rx_queue))) {
815 info = (struct rtl8187_rx_info *)skb->cb;
816 usb_kill_urb(info->urb);
819 mutex_unlock(&priv->conf_mutex);
822 static int rtl8187_add_interface(struct ieee80211_hw *dev,
823 struct ieee80211_if_init_conf *conf)
825 struct rtl8187_priv *priv = dev->priv;
828 if (priv->mode != NL80211_IFTYPE_MONITOR)
831 switch (conf->type) {
832 case NL80211_IFTYPE_STATION:
833 priv->mode = conf->type;
839 mutex_lock(&priv->conf_mutex);
840 priv->vif = conf->vif;
842 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
843 for (i = 0; i < ETH_ALEN; i++)
844 rtl818x_iowrite8(priv, &priv->map->MAC[i],
845 ((u8 *)conf->mac_addr)[i]);
846 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
848 mutex_unlock(&priv->conf_mutex);
852 static void rtl8187_remove_interface(struct ieee80211_hw *dev,
853 struct ieee80211_if_init_conf *conf)
855 struct rtl8187_priv *priv = dev->priv;
856 mutex_lock(&priv->conf_mutex);
857 priv->mode = NL80211_IFTYPE_MONITOR;
859 mutex_unlock(&priv->conf_mutex);
862 static int rtl8187_config(struct ieee80211_hw *dev, u32 changed)
864 struct rtl8187_priv *priv = dev->priv;
865 struct ieee80211_conf *conf = &dev->conf;
868 mutex_lock(&priv->conf_mutex);
869 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
870 /* Enable TX loopback on MAC level to avoid TX during channel
871 * changes, as this has be seen to causes problems and the
872 * card will stop work until next reset
874 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
875 reg | RTL818X_TX_CONF_LOOPBACK_MAC);
876 priv->rf->set_chan(dev, conf);
878 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
880 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
881 rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
882 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
883 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
884 mutex_unlock(&priv->conf_mutex);
888 static int rtl8187_config_interface(struct ieee80211_hw *dev,
889 struct ieee80211_vif *vif,
890 struct ieee80211_if_conf *conf)
892 struct rtl8187_priv *priv = dev->priv;
896 mutex_lock(&priv->conf_mutex);
897 for (i = 0; i < ETH_ALEN; i++)
898 rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
900 if (is_valid_ether_addr(conf->bssid)) {
901 reg = RTL818X_MSR_INFRA;
902 if (priv->is_rtl8187b)
903 reg |= RTL818X_MSR_ENEDCA;
904 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
906 reg = RTL818X_MSR_NO_LINK;
907 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
910 mutex_unlock(&priv->conf_mutex);
914 static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot,
915 bool use_short_preamble)
917 if (priv->is_rtl8187b) {
918 u8 difs, eifs, slot_time;
921 if (use_short_slot) {
930 rtl818x_iowrite8(priv, &priv->map->SIFS, 0xa);
931 rtl818x_iowrite8(priv, &priv->map->SLOT, slot_time);
932 rtl818x_iowrite8(priv, &priv->map->DIFS, difs);
935 * BRSR+1 on 8187B is in fact EIFS register
936 * Value in units of 4 us
938 rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs);
941 * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout
942 * register. In units of 4 us like eifs register
943 * ack_timeout = ack duration + plcp + difs + preamble
945 ack_timeout = 112 + 48 + difs;
946 if (use_short_preamble)
950 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER,
951 DIV_ROUND_UP(ack_timeout, 4));
953 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
954 if (use_short_slot) {
955 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
956 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
957 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
958 rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
960 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
961 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
962 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
963 rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
968 static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
969 struct ieee80211_vif *vif,
970 struct ieee80211_bss_conf *info,
973 struct rtl8187_priv *priv = dev->priv;
975 if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE))
976 rtl8187_conf_erp(priv, info->use_short_slot,
977 info->use_short_preamble);
980 static void rtl8187_configure_filter(struct ieee80211_hw *dev,
981 unsigned int changed_flags,
982 unsigned int *total_flags,
983 int mc_count, struct dev_addr_list *mclist)
985 struct rtl8187_priv *priv = dev->priv;
987 if (changed_flags & FIF_FCSFAIL)
988 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
989 if (changed_flags & FIF_CONTROL)
990 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
991 if (changed_flags & FIF_OTHER_BSS)
992 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
993 if (*total_flags & FIF_ALLMULTI || mc_count > 0)
994 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
996 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
1000 if (priv->rx_conf & RTL818X_RX_CONF_FCS)
1001 *total_flags |= FIF_FCSFAIL;
1002 if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
1003 *total_flags |= FIF_CONTROL;
1004 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
1005 *total_flags |= FIF_OTHER_BSS;
1006 if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
1007 *total_flags |= FIF_ALLMULTI;
1009 rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
1012 static const struct ieee80211_ops rtl8187_ops = {
1014 .start = rtl8187_start,
1015 .stop = rtl8187_stop,
1016 .add_interface = rtl8187_add_interface,
1017 .remove_interface = rtl8187_remove_interface,
1018 .config = rtl8187_config,
1019 .config_interface = rtl8187_config_interface,
1020 .bss_info_changed = rtl8187_bss_info_changed,
1021 .configure_filter = rtl8187_configure_filter,
1024 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
1026 struct ieee80211_hw *dev = eeprom->data;
1027 struct rtl8187_priv *priv = dev->priv;
1028 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1030 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
1031 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
1032 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
1033 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
1036 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
1038 struct ieee80211_hw *dev = eeprom->data;
1039 struct rtl8187_priv *priv = dev->priv;
1040 u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
1042 if (eeprom->reg_data_in)
1043 reg |= RTL818X_EEPROM_CMD_WRITE;
1044 if (eeprom->reg_data_out)
1045 reg |= RTL818X_EEPROM_CMD_READ;
1046 if (eeprom->reg_data_clock)
1047 reg |= RTL818X_EEPROM_CMD_CK;
1048 if (eeprom->reg_chip_select)
1049 reg |= RTL818X_EEPROM_CMD_CS;
1051 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
1055 static int __devinit rtl8187_probe(struct usb_interface *intf,
1056 const struct usb_device_id *id)
1058 struct usb_device *udev = interface_to_usbdev(intf);
1059 struct ieee80211_hw *dev;
1060 struct rtl8187_priv *priv;
1061 struct eeprom_93cx6 eeprom;
1062 struct ieee80211_channel *channel;
1063 const char *chip_name;
1067 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
1069 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
1074 priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
1076 SET_IEEE80211_DEV(dev, &intf->dev);
1077 usb_set_intfdata(intf, dev);
1082 skb_queue_head_init(&priv->rx_queue);
1084 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
1085 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
1087 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
1088 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
1089 priv->map = (struct rtl818x_csr *)0xFF00;
1091 priv->band.band = IEEE80211_BAND_2GHZ;
1092 priv->band.channels = priv->channels;
1093 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
1094 priv->band.bitrates = priv->rates;
1095 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1096 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
1099 priv->mode = NL80211_IFTYPE_MONITOR;
1100 dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1101 IEEE80211_HW_RX_INCLUDES_FCS;
1104 eeprom.register_read = rtl8187_eeprom_register_read;
1105 eeprom.register_write = rtl8187_eeprom_register_write;
1106 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1107 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1109 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1111 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1114 eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
1115 (__le16 __force *)dev->wiphy->perm_addr, 3);
1116 if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
1117 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
1118 "generated MAC address\n");
1119 random_ether_addr(dev->wiphy->perm_addr);
1122 channel = priv->channels;
1123 for (i = 0; i < 3; i++) {
1124 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
1126 (*channel++).hw_value = txpwr & 0xFF;
1127 (*channel++).hw_value = txpwr >> 8;
1129 for (i = 0; i < 2; i++) {
1130 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
1132 (*channel++).hw_value = txpwr & 0xFF;
1133 (*channel++).hw_value = txpwr >> 8;
1136 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
1139 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
1140 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
1141 /* 0 means asic B-cut, we should use SW 3 wire
1142 * bit-by-bit banging for radio. 1 means we can use
1143 * USB specific request to write radio registers */
1144 priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
1145 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
1146 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1148 if (!priv->is_rtl8187b) {
1150 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1151 reg32 &= RTL818X_TX_CONF_HWVER_MASK;
1153 case RTL818X_TX_CONF_R8187vD_B:
1154 /* Some RTL8187B devices have a USB ID of 0x8187
1155 * detect them here */
1156 chip_name = "RTL8187BvB(early)";
1157 priv->is_rtl8187b = 1;
1158 priv->hw_rev = RTL8187BvB;
1160 case RTL818X_TX_CONF_R8187vD:
1161 chip_name = "RTL8187vD";
1164 chip_name = "RTL8187vB (default)";
1168 * Force USB request to write radio registers for 8187B, Realtek
1169 * only uses it in their sources
1171 /*if (priv->asic_rev == 0) {
1172 printk(KERN_WARNING "rtl8187: Forcing use of USB "
1173 "requests to write to radio registers\n");
1176 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
1177 case RTL818X_R8187B_B:
1178 chip_name = "RTL8187BvB";
1179 priv->hw_rev = RTL8187BvB;
1181 case RTL818X_R8187B_D:
1182 chip_name = "RTL8187BvD";
1183 priv->hw_rev = RTL8187BvD;
1185 case RTL818X_R8187B_E:
1186 chip_name = "RTL8187BvE";
1187 priv->hw_rev = RTL8187BvE;
1190 chip_name = "RTL8187BvB (default)";
1191 priv->hw_rev = RTL8187BvB;
1195 if (!priv->is_rtl8187b) {
1196 for (i = 0; i < 2; i++) {
1197 eeprom_93cx6_read(&eeprom,
1198 RTL8187_EEPROM_TXPWR_CHAN_6 + i,
1200 (*channel++).hw_value = txpwr & 0xFF;
1201 (*channel++).hw_value = txpwr >> 8;
1204 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
1206 (*channel++).hw_value = txpwr & 0xFF;
1208 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
1209 (*channel++).hw_value = txpwr & 0xFF;
1211 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
1212 (*channel++).hw_value = txpwr & 0xFF;
1213 (*channel++).hw_value = txpwr >> 8;
1216 if (priv->is_rtl8187b) {
1217 printk(KERN_WARNING "rtl8187: 8187B chip detected. Support "
1218 "is EXPERIMENTAL, and could damage your\n"
1219 " hardware, use at your own risk\n");
1220 dev->flags |= IEEE80211_HW_SIGNAL_DBM;
1222 dev->flags |= IEEE80211_HW_SIGNAL_UNSPEC;
1223 dev->max_signal = 65;
1227 * XXX: Once this driver supports anything that requires
1228 * beacons it must implement IEEE80211_TX_CTL_ASSIGN_SEQ.
1230 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1232 if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
1233 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
1236 priv->rf = rtl8187_detect_rf(dev);
1237 dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
1238 sizeof(struct rtl8187_tx_hdr) :
1239 sizeof(struct rtl8187b_tx_hdr);
1240 if (!priv->is_rtl8187b)
1245 err = ieee80211_register_hw(dev);
1247 printk(KERN_ERR "rtl8187: Cannot register device\n");
1250 mutex_init(&priv->conf_mutex);
1252 printk(KERN_INFO "%s: hwaddr %pM, %s V%d + %s\n",
1253 wiphy_name(dev->wiphy), dev->wiphy->perm_addr,
1254 chip_name, priv->asic_rev, priv->rf->name);
1259 ieee80211_free_hw(dev);
1260 usb_set_intfdata(intf, NULL);
1265 static void __devexit rtl8187_disconnect(struct usb_interface *intf)
1267 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1268 struct rtl8187_priv *priv;
1273 ieee80211_unregister_hw(dev);
1276 usb_put_dev(interface_to_usbdev(intf));
1277 ieee80211_free_hw(dev);
1280 static struct usb_driver rtl8187_driver = {
1281 .name = KBUILD_MODNAME,
1282 .id_table = rtl8187_table,
1283 .probe = rtl8187_probe,
1284 .disconnect = __devexit_p(rtl8187_disconnect),
1287 static int __init rtl8187_init(void)
1289 return usb_register(&rtl8187_driver);
1292 static void __exit rtl8187_exit(void)
1294 usb_deregister(&rtl8187_driver);
1297 module_init(rtl8187_init);
1298 module_exit(rtl8187_exit);