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Michael Wu605bebe2007-05-14 01:41:02 -04001/*
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 *
Larry Finger3461fc12008-11-12 17:31:52 -060010 * 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 *
John W. Linville0aec00a2007-06-12 22:11:42 -040015 * Magic delays and register offsets below are taken from the original
16 * r8187 driver sources. Thanks to Realtek for their support!
Michael Wu605bebe2007-05-14 01:41:02 -040017 *
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License version 2 as
20 * published by the Free Software Foundation.
21 */
22
23#include <linux/init.h>
24#include <linux/usb.h>
25#include <linux/delay.h>
26#include <linux/etherdevice.h>
27#include <linux/eeprom_93cx6.h>
28#include <net/mac80211.h>
29
30#include "rtl8187.h"
31#include "rtl8187_rtl8225.h"
32
33MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
34MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
Larry Finger3461fc12008-11-12 17:31:52 -060035MODULE_AUTHOR("Herton Ronaldo Krzesinski <herton@mandriva.com.br>");
36MODULE_AUTHOR("Hin-Tak Leung <htl10@users.sourceforge.net>");
37MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>");
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +010038MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
Michael Wu605bebe2007-05-14 01:41:02 -040039MODULE_LICENSE("GPL");
40
41static struct usb_device_id rtl8187_table[] __devinitdata = {
Andrea Merello7c7e6af2008-07-25 19:08:11 +020042 /* Asus */
43 {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
Florent Fourcoteaca90d2008-10-13 16:34:26 -070044 /* Belkin */
45 {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B},
Michael Wu605bebe2007-05-14 01:41:02 -040046 /* Realtek */
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +010047 {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
48 {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
49 {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
John W. Linville746db512008-10-10 14:16:46 -040050 {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B},
Michael Wu605bebe2007-05-14 01:41:02 -040051 /* Netgear */
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +010052 {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
53 {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
matthieu Barthélemyfcd7cc12008-08-10 23:34:59 -050054 {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B},
Michael Wuc3cf60a2007-10-04 00:04:07 -040055 /* HP */
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +010056 {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
Matthias Mueller99345502007-12-02 17:17:51 -050057 /* Sitecom */
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +010058 {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
Bob Jolliffef3c769182008-11-12 20:16:59 +000059 {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
Ivan Kuten8f7c41d2008-11-10 19:39:25 -060060 /* Abocom */
61 {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187},
Michael Wu605bebe2007-05-14 01:41:02 -040062 {}
63};
64
65MODULE_DEVICE_TABLE(usb, rtl8187_table);
66
Johannes Berg8318d782008-01-24 19:38:38 +010067static const struct ieee80211_rate rtl818x_rates[] = {
68 { .bitrate = 10, .hw_value = 0, },
69 { .bitrate = 20, .hw_value = 1, },
70 { .bitrate = 55, .hw_value = 2, },
71 { .bitrate = 110, .hw_value = 3, },
72 { .bitrate = 60, .hw_value = 4, },
73 { .bitrate = 90, .hw_value = 5, },
74 { .bitrate = 120, .hw_value = 6, },
75 { .bitrate = 180, .hw_value = 7, },
76 { .bitrate = 240, .hw_value = 8, },
77 { .bitrate = 360, .hw_value = 9, },
78 { .bitrate = 480, .hw_value = 10, },
79 { .bitrate = 540, .hw_value = 11, },
80};
81
82static const struct ieee80211_channel rtl818x_channels[] = {
83 { .center_freq = 2412 },
84 { .center_freq = 2417 },
85 { .center_freq = 2422 },
86 { .center_freq = 2427 },
87 { .center_freq = 2432 },
88 { .center_freq = 2437 },
89 { .center_freq = 2442 },
90 { .center_freq = 2447 },
91 { .center_freq = 2452 },
92 { .center_freq = 2457 },
93 { .center_freq = 2462 },
94 { .center_freq = 2467 },
95 { .center_freq = 2472 },
96 { .center_freq = 2484 },
97};
98
Johannes Berg4150c572007-09-17 01:29:23 -040099static void rtl8187_iowrite_async_cb(struct urb *urb)
100{
101 kfree(urb->context);
Johannes Berg4150c572007-09-17 01:29:23 -0400102}
103
104static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
105 void *data, u16 len)
106{
107 struct usb_ctrlrequest *dr;
108 struct urb *urb;
109 struct rtl8187_async_write_data {
110 u8 data[4];
111 struct usb_ctrlrequest dr;
112 } *buf;
Oliver Neukumea8ee242008-05-15 21:49:16 +0200113 int rc;
Johannes Berg4150c572007-09-17 01:29:23 -0400114
115 buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
116 if (!buf)
117 return;
118
119 urb = usb_alloc_urb(0, GFP_ATOMIC);
120 if (!urb) {
121 kfree(buf);
122 return;
123 }
124
125 dr = &buf->dr;
126
127 dr->bRequestType = RTL8187_REQT_WRITE;
128 dr->bRequest = RTL8187_REQ_SET_REG;
129 dr->wValue = addr;
130 dr->wIndex = 0;
131 dr->wLength = cpu_to_le16(len);
132
133 memcpy(buf, data, len);
134
135 usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
136 (unsigned char *)dr, buf, len,
137 rtl8187_iowrite_async_cb, buf);
Larry Fingerc1db52b2008-12-09 23:34:27 -0600138 usb_anchor_urb(urb, &priv->anchored);
Oliver Neukumea8ee242008-05-15 21:49:16 +0200139 rc = usb_submit_urb(urb, GFP_ATOMIC);
140 if (rc < 0) {
141 kfree(buf);
Larry Fingerc1db52b2008-12-09 23:34:27 -0600142 usb_unanchor_urb(urb);
Oliver Neukumea8ee242008-05-15 21:49:16 +0200143 }
Larry Fingerc1db52b2008-12-09 23:34:27 -0600144 usb_free_urb(urb);
Johannes Berg4150c572007-09-17 01:29:23 -0400145}
146
147static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
148 __le32 *addr, u32 val)
149{
150 __le32 buf = cpu_to_le32(val);
151
152 rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
153 &buf, sizeof(buf));
154}
155
Michael Wu605bebe2007-05-14 01:41:02 -0400156void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
157{
158 struct rtl8187_priv *priv = dev->priv;
159
160 data <<= 8;
161 data |= addr | 0x80;
162
163 rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
164 rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
165 rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
166 rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
Michael Wu605bebe2007-05-14 01:41:02 -0400167}
168
169static void rtl8187_tx_cb(struct urb *urb)
170{
Michael Wu605bebe2007-05-14 01:41:02 -0400171 struct sk_buff *skb = (struct sk_buff *)urb->context;
Johannes Berge039fa42008-05-15 12:55:29 +0200172 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
Johannes Berge6a98542008-10-21 12:40:02 +0200173 struct ieee80211_hw *hw = info->rate_driver_data[0];
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100174 struct rtl8187_priv *priv = hw->priv;
Michael Wu605bebe2007-05-14 01:41:02 -0400175
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100176 skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
177 sizeof(struct rtl8187_tx_hdr));
Johannes Berge6a98542008-10-21 12:40:02 +0200178 ieee80211_tx_info_clear_status(info);
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500179
180 if (!urb->status &&
181 !(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
182 priv->is_rtl8187b) {
183 skb_queue_tail(&priv->b_tx_status.queue, skb);
184
185 /* queue is "full", discard last items */
186 while (skb_queue_len(&priv->b_tx_status.queue) > 5) {
187 struct sk_buff *old_skb;
188
189 dev_dbg(&priv->udev->dev,
190 "transmit status queue full\n");
191
192 old_skb = skb_dequeue(&priv->b_tx_status.queue);
193 ieee80211_tx_status_irqsafe(hw, old_skb);
194 }
195 } else {
196 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !urb->status)
197 info->flags |= IEEE80211_TX_STAT_ACK;
198 ieee80211_tx_status_irqsafe(hw, skb);
199 }
Michael Wu605bebe2007-05-14 01:41:02 -0400200}
201
Johannes Berge039fa42008-05-15 12:55:29 +0200202static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
Michael Wu605bebe2007-05-14 01:41:02 -0400203{
204 struct rtl8187_priv *priv = dev->priv;
Johannes Berge039fa42008-05-15 12:55:29 +0200205 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100206 unsigned int ep;
207 void *buf;
Michael Wu605bebe2007-05-14 01:41:02 -0400208 struct urb *urb;
Michael Wu98798f42007-10-10 17:28:59 -0400209 __le16 rts_dur = 0;
210 u32 flags;
Oliver Neukumea8ee242008-05-15 21:49:16 +0200211 int rc;
Michael Wu605bebe2007-05-14 01:41:02 -0400212
213 urb = usb_alloc_urb(0, GFP_ATOMIC);
214 if (!urb) {
215 kfree_skb(skb);
216 return 0;
217 }
218
Michael Wu98798f42007-10-10 17:28:59 -0400219 flags = skb->len;
Herton Ronaldo Krzesinski38e3b0d2008-07-16 11:44:18 -0300220 flags |= RTL818X_TX_DESC_FLAG_NO_ENC;
Johannes Bergaa68cbf2008-02-18 14:20:30 +0100221
Johannes Berge039fa42008-05-15 12:55:29 +0200222 flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
Harvey Harrison8b7b1e02008-06-11 14:21:56 -0700223 if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
Herton Ronaldo Krzesinski38e3b0d2008-07-16 11:44:18 -0300224 flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
Johannes Berge6a98542008-10-21 12:40:02 +0200225 if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
Herton Ronaldo Krzesinski38e3b0d2008-07-16 11:44:18 -0300226 flags |= RTL818X_TX_DESC_FLAG_RTS;
Johannes Berge039fa42008-05-15 12:55:29 +0200227 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
Johannes Berg32bfd352007-12-19 01:31:26 +0100228 rts_dur = ieee80211_rts_duration(dev, priv->vif,
Johannes Berge039fa42008-05-15 12:55:29 +0200229 skb->len, info);
Johannes Berge6a98542008-10-21 12:40:02 +0200230 } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
Herton Ronaldo Krzesinski38e3b0d2008-07-16 11:44:18 -0300231 flags |= RTL818X_TX_DESC_FLAG_CTS;
Johannes Berge039fa42008-05-15 12:55:29 +0200232 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
Johannes Bergaa68cbf2008-02-18 14:20:30 +0100233 }
Michael Wu98798f42007-10-10 17:28:59 -0400234
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100235 if (!priv->is_rtl8187b) {
236 struct rtl8187_tx_hdr *hdr =
237 (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
238 hdr->flags = cpu_to_le32(flags);
239 hdr->len = 0;
240 hdr->rts_duration = rts_dur;
hertond9a1f482008-11-27 22:53:24 -0200241 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100242 buf = hdr;
243
244 ep = 2;
245 } else {
246 /* fc needs to be calculated before skb_push() */
247 unsigned int epmap[4] = { 6, 7, 5, 4 };
248 struct ieee80211_hdr *tx_hdr =
249 (struct ieee80211_hdr *)(skb->data);
250 u16 fc = le16_to_cpu(tx_hdr->frame_control);
251
252 struct rtl8187b_tx_hdr *hdr =
253 (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
254 struct ieee80211_rate *txrate =
255 ieee80211_get_tx_rate(dev, info);
256 memset(hdr, 0, sizeof(*hdr));
257 hdr->flags = cpu_to_le32(flags);
258 hdr->rts_duration = rts_dur;
hertond9a1f482008-11-27 22:53:24 -0200259 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100260 hdr->tx_duration =
261 ieee80211_generic_frame_duration(dev, priv->vif,
262 skb->len, txrate);
263 buf = hdr;
264
265 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
266 ep = 12;
267 else
268 ep = epmap[skb_get_queue_mapping(skb)];
269 }
Michael Wu605bebe2007-05-14 01:41:02 -0400270
Johannes Berge6a98542008-10-21 12:40:02 +0200271 info->rate_driver_data[0] = dev;
272 info->rate_driver_data[1] = urb;
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100273
274 usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
275 buf, skb->len, rtl8187_tx_cb, skb);
Larry Fingerc1db52b2008-12-09 23:34:27 -0600276 usb_anchor_urb(urb, &priv->anchored);
Oliver Neukumea8ee242008-05-15 21:49:16 +0200277 rc = usb_submit_urb(urb, GFP_ATOMIC);
278 if (rc < 0) {
Larry Fingerc1db52b2008-12-09 23:34:27 -0600279 usb_unanchor_urb(urb);
Oliver Neukumea8ee242008-05-15 21:49:16 +0200280 kfree_skb(skb);
281 }
Larry Fingerc1db52b2008-12-09 23:34:27 -0600282 usb_free_urb(urb);
Michael Wu605bebe2007-05-14 01:41:02 -0400283
284 return 0;
285}
286
287static void rtl8187_rx_cb(struct urb *urb)
288{
289 struct sk_buff *skb = (struct sk_buff *)urb->context;
290 struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
291 struct ieee80211_hw *dev = info->dev;
292 struct rtl8187_priv *priv = dev->priv;
Michael Wu605bebe2007-05-14 01:41:02 -0400293 struct ieee80211_rx_status rx_status = { 0 };
294 int rate, signal;
Johannes Berg4150c572007-09-17 01:29:23 -0400295 u32 flags;
Larry Finger0ccd58f2008-07-28 22:25:08 -0500296 u32 quality;
Michael Wu605bebe2007-05-14 01:41:02 -0400297
298 spin_lock(&priv->rx_queue.lock);
299 if (skb->next)
300 __skb_unlink(skb, &priv->rx_queue);
301 else {
302 spin_unlock(&priv->rx_queue.lock);
303 return;
304 }
305 spin_unlock(&priv->rx_queue.lock);
Larry Fingerc1db52b2008-12-09 23:34:27 -0600306 skb_put(skb, urb->actual_length);
Michael Wu605bebe2007-05-14 01:41:02 -0400307
308 if (unlikely(urb->status)) {
Michael Wu605bebe2007-05-14 01:41:02 -0400309 dev_kfree_skb_irq(skb);
310 return;
311 }
312
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100313 if (!priv->is_rtl8187b) {
314 struct rtl8187_rx_hdr *hdr =
315 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
316 flags = le32_to_cpu(hdr->flags);
Larry Fingera7db74f2008-12-03 22:21:20 -0600317 /* As with the RTL8187B below, the AGC is used to calculate
318 * signal strength and quality. In this case, the scaling
319 * constants are derived from the output of p54usb.
320 */
321 quality = 130 - ((41 * hdr->agc) >> 6);
322 signal = -4 - ((27 * hdr->agc) >> 6);
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100323 rx_status.antenna = (hdr->signal >> 7) & 1;
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100324 rx_status.mactime = le64_to_cpu(hdr->mac_time);
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100325 } else {
326 struct rtl8187b_rx_hdr *hdr =
327 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
Larry Finger0ccd58f2008-07-28 22:25:08 -0500328 /* The Realtek datasheet for the RTL8187B shows that the RX
329 * header contains the following quantities: signal quality,
330 * RSSI, AGC, the received power in dB, and the measured SNR.
331 * In testing, none of these quantities show qualitative
332 * agreement with AP signal strength, except for the AGC,
333 * which is inversely proportional to the strength of the
334 * signal. In the following, the quality and signal strength
335 * are derived from the AGC. The arbitrary scaling constants
336 * are chosen to make the results close to the values obtained
337 * for a BCM4312 using b43 as the driver. The noise is ignored
338 * for now.
339 */
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100340 flags = le32_to_cpu(hdr->flags);
Larry Finger0ccd58f2008-07-28 22:25:08 -0500341 quality = 170 - hdr->agc;
Larry Finger0ccd58f2008-07-28 22:25:08 -0500342 signal = 14 - hdr->agc / 2;
Larry Finger0ccd58f2008-07-28 22:25:08 -0500343 rx_status.antenna = (hdr->rssi >> 7) & 1;
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100344 rx_status.mactime = le64_to_cpu(hdr->mac_time);
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100345 }
Michael Wu605bebe2007-05-14 01:41:02 -0400346
Larry Fingera7db74f2008-12-03 22:21:20 -0600347 if (quality > 100)
348 quality = 100;
349 rx_status.qual = quality;
350 priv->quality = quality;
351 rx_status.signal = signal;
352 priv->signal = signal;
353 rate = (flags >> 20) & 0xF;
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100354 skb_trim(skb, flags & 0x0FFF);
Johannes Berg8318d782008-01-24 19:38:38 +0100355 rx_status.rate_idx = rate;
356 rx_status.freq = dev->conf.channel->center_freq;
357 rx_status.band = dev->conf.channel->band;
Johannes Berg03bffc12007-12-04 20:33:40 +0100358 rx_status.flag |= RX_FLAG_TSFT;
Herton Ronaldo Krzesinski38e3b0d2008-07-16 11:44:18 -0300359 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
Johannes Berg4150c572007-09-17 01:29:23 -0400360 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
Michael Wu605bebe2007-05-14 01:41:02 -0400361 ieee80211_rx_irqsafe(dev, skb, &rx_status);
362
363 skb = dev_alloc_skb(RTL8187_MAX_RX);
364 if (unlikely(!skb)) {
Michael Wu605bebe2007-05-14 01:41:02 -0400365 /* TODO check rx queue length and refill *somewhere* */
366 return;
367 }
368
369 info = (struct rtl8187_rx_info *)skb->cb;
370 info->urb = urb;
371 info->dev = dev;
372 urb->transfer_buffer = skb_tail_pointer(skb);
373 urb->context = skb;
374 skb_queue_tail(&priv->rx_queue, skb);
375
Larry Fingerc1db52b2008-12-09 23:34:27 -0600376 usb_anchor_urb(urb, &priv->anchored);
377 if (usb_submit_urb(urb, GFP_ATOMIC)) {
378 usb_unanchor_urb(urb);
379 skb_unlink(skb, &priv->rx_queue);
380 dev_kfree_skb_irq(skb);
381 }
Michael Wu605bebe2007-05-14 01:41:02 -0400382}
383
384static int rtl8187_init_urbs(struct ieee80211_hw *dev)
385{
386 struct rtl8187_priv *priv = dev->priv;
Larry Fingerc1db52b2008-12-09 23:34:27 -0600387 struct urb *entry = NULL;
Michael Wu605bebe2007-05-14 01:41:02 -0400388 struct sk_buff *skb;
389 struct rtl8187_rx_info *info;
Larry Fingerc1db52b2008-12-09 23:34:27 -0600390 int ret = 0;
Michael Wu605bebe2007-05-14 01:41:02 -0400391
392 while (skb_queue_len(&priv->rx_queue) < 8) {
393 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
Larry Fingerc1db52b2008-12-09 23:34:27 -0600394 if (!skb) {
395 ret = -ENOMEM;
396 goto err;
397 }
Michael Wu605bebe2007-05-14 01:41:02 -0400398 entry = usb_alloc_urb(0, GFP_KERNEL);
399 if (!entry) {
Larry Fingerc1db52b2008-12-09 23:34:27 -0600400 ret = -ENOMEM;
401 goto err;
Michael Wu605bebe2007-05-14 01:41:02 -0400402 }
403 usb_fill_bulk_urb(entry, priv->udev,
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +0100404 usb_rcvbulkpipe(priv->udev,
405 priv->is_rtl8187b ? 3 : 1),
Michael Wu605bebe2007-05-14 01:41:02 -0400406 skb_tail_pointer(skb),
407 RTL8187_MAX_RX, rtl8187_rx_cb, skb);
408 info = (struct rtl8187_rx_info *)skb->cb;
409 info->urb = entry;
410 info->dev = dev;
411 skb_queue_tail(&priv->rx_queue, skb);
Larry Fingerc1db52b2008-12-09 23:34:27 -0600412 usb_anchor_urb(entry, &priv->anchored);
413 ret = usb_submit_urb(entry, GFP_KERNEL);
414 if (ret) {
415 skb_unlink(skb, &priv->rx_queue);
416 usb_unanchor_urb(entry);
417 goto err;
418 }
419 usb_free_urb(entry);
Michael Wu605bebe2007-05-14 01:41:02 -0400420 }
Larry Fingerc1db52b2008-12-09 23:34:27 -0600421 return ret;
Michael Wu605bebe2007-05-14 01:41:02 -0400422
Larry Fingerc1db52b2008-12-09 23:34:27 -0600423err:
424 usb_free_urb(entry);
425 kfree_skb(skb);
426 usb_kill_anchored_urbs(&priv->anchored);
427 return ret;
Michael Wu605bebe2007-05-14 01:41:02 -0400428}
429
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500430static void rtl8187b_status_cb(struct urb *urb)
431{
432 struct ieee80211_hw *hw = (struct ieee80211_hw *)urb->context;
433 struct rtl8187_priv *priv = hw->priv;
434 u64 val;
435 unsigned int cmd_type;
436
Larry Fingerc1db52b2008-12-09 23:34:27 -0600437 if (unlikely(urb->status))
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500438 return;
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500439
440 /*
441 * Read from status buffer:
442 *
443 * bits [30:31] = cmd type:
444 * - 0 indicates tx beacon interrupt
445 * - 1 indicates tx close descriptor
446 *
447 * In the case of tx beacon interrupt:
448 * [0:9] = Last Beacon CW
449 * [10:29] = reserved
450 * [30:31] = 00b
451 * [32:63] = Last Beacon TSF
452 *
453 * If it's tx close descriptor:
454 * [0:7] = Packet Retry Count
455 * [8:14] = RTS Retry Count
456 * [15] = TOK
457 * [16:27] = Sequence No
458 * [28] = LS
459 * [29] = FS
460 * [30:31] = 01b
461 * [32:47] = unused (reserved?)
462 * [48:63] = MAC Used Time
463 */
464 val = le64_to_cpu(priv->b_tx_status.buf);
465
466 cmd_type = (val >> 30) & 0x3;
467 if (cmd_type == 1) {
468 unsigned int pkt_rc, seq_no;
469 bool tok;
470 struct sk_buff *skb;
471 struct ieee80211_hdr *ieee80211hdr;
472 unsigned long flags;
473
474 pkt_rc = val & 0xFF;
475 tok = val & (1 << 15);
476 seq_no = (val >> 16) & 0xFFF;
477
478 spin_lock_irqsave(&priv->b_tx_status.queue.lock, flags);
479 skb_queue_reverse_walk(&priv->b_tx_status.queue, skb) {
480 ieee80211hdr = (struct ieee80211_hdr *)skb->data;
481
482 /*
483 * While testing, it was discovered that the seq_no
484 * doesn't actually contains the sequence number.
485 * Instead of returning just the 12 bits of sequence
486 * number, hardware is returning entire sequence control
487 * (fragment number plus sequence number) in a 12 bit
488 * only field overflowing after some time. As a
489 * workaround, just consider the lower bits, and expect
490 * it's unlikely we wrongly ack some sent data
491 */
492 if ((le16_to_cpu(ieee80211hdr->seq_ctrl)
493 & 0xFFF) == seq_no)
494 break;
495 }
496 if (skb != (struct sk_buff *) &priv->b_tx_status.queue) {
497 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
498
499 __skb_unlink(skb, &priv->b_tx_status.queue);
500 if (tok)
501 info->flags |= IEEE80211_TX_STAT_ACK;
Larry Finger1548c862008-11-17 09:08:21 -0600502 info->status.rates[0].count = pkt_rc + 1;
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500503
504 ieee80211_tx_status_irqsafe(hw, skb);
505 }
506 spin_unlock_irqrestore(&priv->b_tx_status.queue.lock, flags);
507 }
508
Larry Fingerc1db52b2008-12-09 23:34:27 -0600509 usb_anchor_urb(urb, &priv->anchored);
510 if (usb_submit_urb(urb, GFP_ATOMIC))
511 usb_unanchor_urb(urb);
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500512}
513
514static int rtl8187b_init_status_urb(struct ieee80211_hw *dev)
515{
516 struct rtl8187_priv *priv = dev->priv;
517 struct urb *entry;
Larry Fingerc1db52b2008-12-09 23:34:27 -0600518 int ret = 0;
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500519
520 entry = usb_alloc_urb(0, GFP_KERNEL);
521 if (!entry)
522 return -ENOMEM;
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500523
524 usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 9),
525 &priv->b_tx_status.buf, sizeof(priv->b_tx_status.buf),
526 rtl8187b_status_cb, dev);
527
Larry Fingerc1db52b2008-12-09 23:34:27 -0600528 usb_anchor_urb(entry, &priv->anchored);
529 ret = usb_submit_urb(entry, GFP_KERNEL);
530 if (ret)
531 usb_unanchor_urb(entry);
532 usb_free_urb(entry);
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500533
Larry Fingerc1db52b2008-12-09 23:34:27 -0600534 return ret;
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500535}
536
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100537static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
Michael Wu605bebe2007-05-14 01:41:02 -0400538{
539 struct rtl8187_priv *priv = dev->priv;
540 u8 reg;
541 int i;
542
Michael Wu605bebe2007-05-14 01:41:02 -0400543 reg = rtl818x_ioread8(priv, &priv->map->CMD);
544 reg &= (1 << 1);
545 reg |= RTL818X_CMD_RESET;
546 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
547
548 i = 10;
549 do {
550 msleep(2);
551 if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
552 RTL818X_CMD_RESET))
553 break;
554 } while (--i);
555
556 if (!i) {
557 printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
558 return -ETIMEDOUT;
559 }
560
561 /* reload registers from eeprom */
562 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
563
564 i = 10;
565 do {
566 msleep(4);
567 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
568 RTL818X_EEPROM_CMD_CONFIG))
569 break;
570 } while (--i);
571
572 if (!i) {
573 printk(KERN_ERR "%s: eeprom reset timeout!\n",
574 wiphy_name(dev->wiphy));
575 return -ETIMEDOUT;
576 }
577
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100578 return 0;
579}
580
581static int rtl8187_init_hw(struct ieee80211_hw *dev)
582{
583 struct rtl8187_priv *priv = dev->priv;
584 u8 reg;
585 int res;
586
587 /* reset */
588 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
589 RTL818X_EEPROM_CMD_CONFIG);
Michael Wu605bebe2007-05-14 01:41:02 -0400590 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100591 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg |
592 RTL818X_CONFIG3_ANAPARAM_WRITE);
Herton Ronaldo Krzesinski4ece16a2008-07-10 18:55:23 -0300593 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
594 RTL8187_RTL8225_ANAPARAM_ON);
595 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
596 RTL8187_RTL8225_ANAPARAM2_ON);
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100597 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg &
598 ~RTL818X_CONFIG3_ANAPARAM_WRITE);
599 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
600 RTL818X_EEPROM_CMD_NORMAL);
601
602 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
603
604 msleep(200);
605 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
606 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
607 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
608 msleep(200);
609
610 res = rtl8187_cmd_reset(dev);
611 if (res)
612 return res;
613
614 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
615 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
616 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
617 reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
Herton Ronaldo Krzesinski4ece16a2008-07-10 18:55:23 -0300618 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
619 RTL8187_RTL8225_ANAPARAM_ON);
620 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
621 RTL8187_RTL8225_ANAPARAM2_ON);
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100622 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
623 reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
Michael Wu605bebe2007-05-14 01:41:02 -0400624 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
625
626 /* setup card */
627 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
628 rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
629
630 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
631 rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
632 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
633
634 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
Michael Wu605bebe2007-05-14 01:41:02 -0400635
636 rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
637 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
638 reg &= 0x3F;
639 reg |= 0x80;
640 rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
641
642 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
643
644 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
645 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
646 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
647
648 // TODO: set RESP_RATE and BRSR properly
649 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
650 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
651
652 /* host_usb_init */
653 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
654 rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
655 reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
656 rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
657 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
658 rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
659 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
660 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
661 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
662 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
663 msleep(100);
664
665 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
666 rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
667 rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100668 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
669 RTL818X_EEPROM_CMD_CONFIG);
Michael Wu605bebe2007-05-14 01:41:02 -0400670 rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100671 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
672 RTL818X_EEPROM_CMD_NORMAL);
Michael Wu605bebe2007-05-14 01:41:02 -0400673 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
674 msleep(100);
675
Michael Wuf6532112007-10-14 14:43:16 -0400676 priv->rf->init(dev);
Michael Wu605bebe2007-05-14 01:41:02 -0400677
678 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
Michael Wuf6532112007-10-14 14:43:16 -0400679 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
680 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
Michael Wu605bebe2007-05-14 01:41:02 -0400681 rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
682 rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
683 rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
Michael Wuf6532112007-10-14 14:43:16 -0400684 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
Michael Wu605bebe2007-05-14 01:41:02 -0400685
686 return 0;
687}
688
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100689static const u8 rtl8187b_reg_table[][3] = {
690 {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
691 {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
692 {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
693 {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},
694
695 {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
696 {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
697 {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xE0, 0xFF, 1}, {0xE1, 0x0F, 1},
698 {0xE2, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, {0xF2, 0x02, 1},
699 {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, {0xF6, 0x06, 1},
700 {0xF7, 0x07, 1}, {0xF8, 0x08, 1},
701
702 {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
703 {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
704 {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
705 {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
706 {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
707 {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
708 {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, {0x72, 0x56, 2},
709 {0x73, 0x9A, 2},
710
711 {0x34, 0xF0, 0}, {0x35, 0x0F, 0}, {0x5B, 0x40, 0}, {0x84, 0x88, 0},
712 {0x85, 0x24, 0}, {0x88, 0x54, 0}, {0x8B, 0xB8, 0}, {0x8C, 0x07, 0},
713 {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, {0x95, 0x12, 0}, {0x96, 0x00, 0},
714 {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, {0x9F, 0x10, 0}, {0xB4, 0x22, 0},
715 {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, {0xEE, 0x00, 0}, {0x91, 0x03, 0},
716
717 {0x4C, 0x00, 2}, {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0},
718 {0x8E, 0x08, 0}, {0x8F, 0x00, 0}
719};
720
721static int rtl8187b_init_hw(struct ieee80211_hw *dev)
722{
723 struct rtl8187_priv *priv = dev->priv;
724 int res, i;
725 u8 reg;
726
727 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
728 RTL818X_EEPROM_CMD_CONFIG);
729
730 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
731 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE | RTL818X_CONFIG3_GNT_SELECT;
732 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
Herton Ronaldo Krzesinski4ece16a2008-07-10 18:55:23 -0300733 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
734 RTL8187B_RTL8225_ANAPARAM2_ON);
735 rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
736 RTL8187B_RTL8225_ANAPARAM_ON);
737 rtl818x_iowrite8(priv, &priv->map->ANAPARAM3,
738 RTL8187B_RTL8225_ANAPARAM3_ON);
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100739
740 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
741 reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
742 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
743 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));
744
745 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
746 reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
747 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
748
749 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
750 RTL818X_EEPROM_CMD_NORMAL);
751
752 res = rtl8187_cmd_reset(dev);
753 if (res)
754 return res;
755
756 rtl818x_iowrite16(priv, (__le16 *)0xFF2D, 0x0FFF);
757 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
758 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
759 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
760 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
761 reg |= RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT |
762 RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
763 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
764
765 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
766 reg = rtl818x_ioread8(priv, &priv->map->RATE_FALLBACK);
767 reg |= RTL818X_RATE_FALLBACK_ENABLE;
768 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, reg);
769
770 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
771 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
772 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);
773
774 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
775 RTL818X_EEPROM_CMD_CONFIG);
776 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
777 rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
778 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
779 RTL818X_EEPROM_CMD_NORMAL);
780
781 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
782 for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
783 rtl818x_iowrite8_idx(priv,
784 (u8 *)(uintptr_t)
785 (rtl8187b_reg_table[i][0] | 0xFF00),
786 rtl8187b_reg_table[i][1],
787 rtl8187b_reg_table[i][2]);
788 }
789
790 rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
791 rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
792
793 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
794 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
795 rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);
796
797 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);
798
799 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
800
801 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
802 RTL818X_EEPROM_CMD_CONFIG);
803 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
804 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
805 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
806 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
807 RTL818X_EEPROM_CMD_NORMAL);
808
809 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
810 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
811 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
Larry Finger2f205962008-10-31 09:52:07 -0700812 msleep(100);
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100813
814 priv->rf->init(dev);
815
816 reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
817 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
818 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
819
820 rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
821 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
822 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
823 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
824 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
825 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
826 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
827
828 reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
829 rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
830 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
831 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
832 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
833 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
834 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
835 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
836 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
837 rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
838 rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
839 rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
840 rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);
841
842 rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);
843
844 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);
845
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -0500846 priv->slot_time = 0x9;
847 priv->aifsn[0] = 2; /* AIFSN[AC_VO] */
848 priv->aifsn[1] = 2; /* AIFSN[AC_VI] */
849 priv->aifsn[2] = 7; /* AIFSN[AC_BK] */
850 priv->aifsn[3] = 3; /* AIFSN[AC_BE] */
851 rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0);
852
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100853 return 0;
854}
855
Johannes Berg4150c572007-09-17 01:29:23 -0400856static int rtl8187_start(struct ieee80211_hw *dev)
Michael Wu605bebe2007-05-14 01:41:02 -0400857{
858 struct rtl8187_priv *priv = dev->priv;
859 u32 reg;
860 int ret;
861
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100862 ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
863 rtl8187b_init_hw(dev);
Michael Wu605bebe2007-05-14 01:41:02 -0400864 if (ret)
865 return ret;
866
Larry Finger7dcdd072008-07-31 19:30:48 -0500867 mutex_lock(&priv->conf_mutex);
Larry Fingerc1db52b2008-12-09 23:34:27 -0600868
869 init_usb_anchor(&priv->anchored);
870
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100871 if (priv->is_rtl8187b) {
872 reg = RTL818X_RX_CONF_MGMT |
873 RTL818X_RX_CONF_DATA |
874 RTL818X_RX_CONF_BROADCAST |
875 RTL818X_RX_CONF_NICMAC |
876 RTL818X_RX_CONF_BSSID |
877 (7 << 13 /* RX FIFO threshold NONE */) |
878 (7 << 10 /* MAX RX DMA */) |
879 RTL818X_RX_CONF_RX_AUTORESETPHY |
880 RTL818X_RX_CONF_ONLYERLPKT |
881 RTL818X_RX_CONF_MULTICAST;
882 priv->rx_conf = reg;
883 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
884
885 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
886 RTL818X_TX_CONF_HW_SEQNUM |
887 RTL818X_TX_CONF_DISREQQSIZE |
888 (7 << 8 /* short retry limit */) |
889 (7 << 0 /* long retry limit */) |
890 (7 << 21 /* MAX TX DMA */));
891 rtl8187_init_urbs(dev);
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500892 rtl8187b_init_status_urb(dev);
Larry Finger7dcdd072008-07-31 19:30:48 -0500893 mutex_unlock(&priv->conf_mutex);
Hin-Tak Leungf8a08c32008-07-08 12:33:34 +0100894 return 0;
895 }
896
Michael Wu605bebe2007-05-14 01:41:02 -0400897 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
898
Michael Wu2fe14262007-10-20 20:05:31 -0400899 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
900 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
901
Michael Wu605bebe2007-05-14 01:41:02 -0400902 rtl8187_init_urbs(dev);
903
904 reg = RTL818X_RX_CONF_ONLYERLPKT |
905 RTL818X_RX_CONF_RX_AUTORESETPHY |
906 RTL818X_RX_CONF_BSSID |
907 RTL818X_RX_CONF_MGMT |
Michael Wu605bebe2007-05-14 01:41:02 -0400908 RTL818X_RX_CONF_DATA |
909 (7 << 13 /* RX FIFO threshold NONE */) |
910 (7 << 10 /* MAX RX DMA */) |
911 RTL818X_RX_CONF_BROADCAST |
Michael Wu605bebe2007-05-14 01:41:02 -0400912 RTL818X_RX_CONF_NICMAC;
Michael Wu605bebe2007-05-14 01:41:02 -0400913
Johannes Berg4150c572007-09-17 01:29:23 -0400914 priv->rx_conf = reg;
Michael Wu605bebe2007-05-14 01:41:02 -0400915 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
916
917 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
918 reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
919 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
920 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
921
922 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
923 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
924 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
925 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
926 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
927
928 reg = RTL818X_TX_CONF_CW_MIN |
929 (7 << 21 /* MAX TX DMA */) |
930 RTL818X_TX_CONF_NO_ICV;
931 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
932
933 reg = rtl818x_ioread8(priv, &priv->map->CMD);
934 reg |= RTL818X_CMD_TX_ENABLE;
935 reg |= RTL818X_CMD_RX_ENABLE;
936 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
Larry Finger7dcdd072008-07-31 19:30:48 -0500937 mutex_unlock(&priv->conf_mutex);
Michael Wu605bebe2007-05-14 01:41:02 -0400938
939 return 0;
940}
941
Johannes Berg4150c572007-09-17 01:29:23 -0400942static void rtl8187_stop(struct ieee80211_hw *dev)
Michael Wu605bebe2007-05-14 01:41:02 -0400943{
944 struct rtl8187_priv *priv = dev->priv;
945 struct rtl8187_rx_info *info;
946 struct sk_buff *skb;
947 u32 reg;
948
Larry Finger7dcdd072008-07-31 19:30:48 -0500949 mutex_lock(&priv->conf_mutex);
Michael Wu605bebe2007-05-14 01:41:02 -0400950 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
951
952 reg = rtl818x_ioread8(priv, &priv->map->CMD);
953 reg &= ~RTL818X_CMD_TX_ENABLE;
954 reg &= ~RTL818X_CMD_RX_ENABLE;
955 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
956
Michael Wuf6532112007-10-14 14:43:16 -0400957 priv->rf->stop(dev);
Michael Wu605bebe2007-05-14 01:41:02 -0400958
959 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
960 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
961 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
962 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
963
964 while ((skb = skb_dequeue(&priv->rx_queue))) {
965 info = (struct rtl8187_rx_info *)skb->cb;
Michael Wu605bebe2007-05-14 01:41:02 -0400966 kfree_skb(skb);
967 }
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -0500968 while ((skb = skb_dequeue(&priv->b_tx_status.queue)))
969 dev_kfree_skb_any(skb);
Larry Fingerc1db52b2008-12-09 23:34:27 -0600970
971 usb_kill_anchored_urbs(&priv->anchored);
Larry Finger7dcdd072008-07-31 19:30:48 -0500972 mutex_unlock(&priv->conf_mutex);
Michael Wu605bebe2007-05-14 01:41:02 -0400973}
974
975static int rtl8187_add_interface(struct ieee80211_hw *dev,
976 struct ieee80211_if_init_conf *conf)
977{
978 struct rtl8187_priv *priv = dev->priv;
Johannes Berg4150c572007-09-17 01:29:23 -0400979 int i;
Michael Wu605bebe2007-05-14 01:41:02 -0400980
Johannes Berg05c914f2008-09-11 00:01:58 +0200981 if (priv->mode != NL80211_IFTYPE_MONITOR)
Johannes Berg4150c572007-09-17 01:29:23 -0400982 return -EOPNOTSUPP;
Michael Wu605bebe2007-05-14 01:41:02 -0400983
984 switch (conf->type) {
Johannes Berg05c914f2008-09-11 00:01:58 +0200985 case NL80211_IFTYPE_STATION:
Michael Wu605bebe2007-05-14 01:41:02 -0400986 priv->mode = conf->type;
987 break;
988 default:
989 return -EOPNOTSUPP;
990 }
991
Larry Finger7dcdd072008-07-31 19:30:48 -0500992 mutex_lock(&priv->conf_mutex);
Herton Ronaldo Krzesinskiaa979a62008-04-09 16:38:31 -0300993 priv->vif = conf->vif;
994
Johannes Berg4150c572007-09-17 01:29:23 -0400995 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
996 for (i = 0; i < ETH_ALEN; i++)
997 rtl818x_iowrite8(priv, &priv->map->MAC[i],
998 ((u8 *)conf->mac_addr)[i]);
999 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
Michael Wu605bebe2007-05-14 01:41:02 -04001000
Larry Finger7dcdd072008-07-31 19:30:48 -05001001 mutex_unlock(&priv->conf_mutex);
Michael Wu605bebe2007-05-14 01:41:02 -04001002 return 0;
1003}
1004
1005static void rtl8187_remove_interface(struct ieee80211_hw *dev,
1006 struct ieee80211_if_init_conf *conf)
1007{
1008 struct rtl8187_priv *priv = dev->priv;
Larry Finger7dcdd072008-07-31 19:30:48 -05001009 mutex_lock(&priv->conf_mutex);
Johannes Berg05c914f2008-09-11 00:01:58 +02001010 priv->mode = NL80211_IFTYPE_MONITOR;
Herton Ronaldo Krzesinskiaa979a62008-04-09 16:38:31 -03001011 priv->vif = NULL;
Larry Finger7dcdd072008-07-31 19:30:48 -05001012 mutex_unlock(&priv->conf_mutex);
Michael Wu605bebe2007-05-14 01:41:02 -04001013}
1014
Johannes Berge8975582008-10-09 12:18:51 +02001015static int rtl8187_config(struct ieee80211_hw *dev, u32 changed)
Michael Wu605bebe2007-05-14 01:41:02 -04001016{
1017 struct rtl8187_priv *priv = dev->priv;
Johannes Berge8975582008-10-09 12:18:51 +02001018 struct ieee80211_conf *conf = &dev->conf;
Michael Wuf6532112007-10-14 14:43:16 -04001019 u32 reg;
1020
Larry Finger7dcdd072008-07-31 19:30:48 -05001021 mutex_lock(&priv->conf_mutex);
Michael Wuf6532112007-10-14 14:43:16 -04001022 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1023 /* Enable TX loopback on MAC level to avoid TX during channel
1024 * changes, as this has be seen to causes problems and the
1025 * card will stop work until next reset
1026 */
1027 rtl818x_iowrite32(priv, &priv->map->TX_CONF,
1028 reg | RTL818X_TX_CONF_LOOPBACK_MAC);
Michael Wuf6532112007-10-14 14:43:16 -04001029 priv->rf->set_chan(dev, conf);
1030 msleep(10);
1031 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
Michael Wu605bebe2007-05-14 01:41:02 -04001032
Michael Wu605bebe2007-05-14 01:41:02 -04001033 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
1034 rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
1035 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
1036 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
Larry Finger7dcdd072008-07-31 19:30:48 -05001037 mutex_unlock(&priv->conf_mutex);
Michael Wu605bebe2007-05-14 01:41:02 -04001038 return 0;
1039}
1040
Johannes Berg32bfd352007-12-19 01:31:26 +01001041static int rtl8187_config_interface(struct ieee80211_hw *dev,
1042 struct ieee80211_vif *vif,
Michael Wu605bebe2007-05-14 01:41:02 -04001043 struct ieee80211_if_conf *conf)
1044{
1045 struct rtl8187_priv *priv = dev->priv;
1046 int i;
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +01001047 u8 reg;
Michael Wu605bebe2007-05-14 01:41:02 -04001048
Larry Finger7dcdd072008-07-31 19:30:48 -05001049 mutex_lock(&priv->conf_mutex);
Michael Wu605bebe2007-05-14 01:41:02 -04001050 for (i = 0; i < ETH_ALEN; i++)
1051 rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
1052
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +01001053 if (is_valid_ether_addr(conf->bssid)) {
1054 reg = RTL818X_MSR_INFRA;
1055 if (priv->is_rtl8187b)
1056 reg |= RTL818X_MSR_ENEDCA;
1057 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
1058 } else {
1059 reg = RTL818X_MSR_NO_LINK;
1060 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
1061 }
Michael Wu605bebe2007-05-14 01:41:02 -04001062
Larry Finger7dcdd072008-07-31 19:30:48 -05001063 mutex_unlock(&priv->conf_mutex);
Michael Wu605bebe2007-05-14 01:41:02 -04001064 return 0;
1065}
1066
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -05001067/*
1068 * With 8187B, AC_*_PARAM clashes with FEMR definition in struct rtl818x_csr for
1069 * example. Thus we have to use raw values for AC_*_PARAM register addresses.
1070 */
1071static __le32 *rtl8187b_ac_addr[4] = {
1072 (__le32 *) 0xFFF0, /* AC_VO */
1073 (__le32 *) 0xFFF4, /* AC_VI */
1074 (__le32 *) 0xFFFC, /* AC_BK */
1075 (__le32 *) 0xFFF8, /* AC_BE */
1076};
1077
1078#define SIFS_TIME 0xa
1079
Herton Ronaldo Krzesinskif8288312008-10-13 18:11:00 +00001080static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot,
1081 bool use_short_preamble)
Herton Ronaldo Krzesinski64761072008-10-13 18:10:59 +00001082{
Herton Ronaldo Krzesinskif8288312008-10-13 18:11:00 +00001083 if (priv->is_rtl8187b) {
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -05001084 u8 difs, eifs;
Herton Ronaldo Krzesinskif8288312008-10-13 18:11:00 +00001085 u16 ack_timeout;
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -05001086 int queue;
Herton Ronaldo Krzesinskif8288312008-10-13 18:11:00 +00001087
1088 if (use_short_slot) {
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -05001089 priv->slot_time = 0x9;
Herton Ronaldo Krzesinskif8288312008-10-13 18:11:00 +00001090 difs = 0x1c;
1091 eifs = 0x53;
1092 } else {
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -05001093 priv->slot_time = 0x14;
Herton Ronaldo Krzesinskif8288312008-10-13 18:11:00 +00001094 difs = 0x32;
1095 eifs = 0x5b;
1096 }
Herton Ronaldo Krzesinski54ac2182008-11-13 10:39:14 -05001097 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -05001098 rtl818x_iowrite8(priv, &priv->map->SLOT, priv->slot_time);
Herton Ronaldo Krzesinskif8288312008-10-13 18:11:00 +00001099 rtl818x_iowrite8(priv, &priv->map->DIFS, difs);
1100
1101 /*
1102 * BRSR+1 on 8187B is in fact EIFS register
1103 * Value in units of 4 us
1104 */
1105 rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs);
1106
1107 /*
1108 * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout
1109 * register. In units of 4 us like eifs register
1110 * ack_timeout = ack duration + plcp + difs + preamble
1111 */
1112 ack_timeout = 112 + 48 + difs;
1113 if (use_short_preamble)
1114 ack_timeout += 72;
1115 else
1116 ack_timeout += 144;
1117 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER,
1118 DIV_ROUND_UP(ack_timeout, 4));
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -05001119
1120 for (queue = 0; queue < 4; queue++)
1121 rtl818x_iowrite8(priv, (u8 *) rtl8187b_ac_addr[queue],
1122 priv->aifsn[queue] * priv->slot_time +
1123 SIFS_TIME);
Herton Ronaldo Krzesinskif8288312008-10-13 18:11:00 +00001124 } else {
Herton Ronaldo Krzesinski64761072008-10-13 18:10:59 +00001125 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
1126 if (use_short_slot) {
1127 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
1128 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
1129 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
Herton Ronaldo Krzesinski64761072008-10-13 18:10:59 +00001130 } else {
1131 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
1132 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
1133 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
Herton Ronaldo Krzesinski64761072008-10-13 18:10:59 +00001134 }
1135 }
1136}
1137
1138static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
1139 struct ieee80211_vif *vif,
1140 struct ieee80211_bss_conf *info,
1141 u32 changed)
1142{
1143 struct rtl8187_priv *priv = dev->priv;
1144
Herton Ronaldo Krzesinskif8288312008-10-13 18:11:00 +00001145 if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE))
1146 rtl8187_conf_erp(priv, info->use_short_slot,
1147 info->use_short_preamble);
Herton Ronaldo Krzesinski64761072008-10-13 18:10:59 +00001148}
1149
Johannes Berg4150c572007-09-17 01:29:23 -04001150static void rtl8187_configure_filter(struct ieee80211_hw *dev,
1151 unsigned int changed_flags,
1152 unsigned int *total_flags,
Michael Wu2fe14262007-10-20 20:05:31 -04001153 int mc_count, struct dev_addr_list *mclist)
Johannes Berg4150c572007-09-17 01:29:23 -04001154{
1155 struct rtl8187_priv *priv = dev->priv;
1156
Johannes Berg4150c572007-09-17 01:29:23 -04001157 if (changed_flags & FIF_FCSFAIL)
1158 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
1159 if (changed_flags & FIF_CONTROL)
1160 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
1161 if (changed_flags & FIF_OTHER_BSS)
1162 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
Michael Wu2fe14262007-10-20 20:05:31 -04001163 if (*total_flags & FIF_ALLMULTI || mc_count > 0)
Johannes Berg4150c572007-09-17 01:29:23 -04001164 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
Michael Wu2fe14262007-10-20 20:05:31 -04001165 else
1166 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
Johannes Berg4150c572007-09-17 01:29:23 -04001167
Michael Wu2fe14262007-10-20 20:05:31 -04001168 *total_flags = 0;
1169
Johannes Berg4150c572007-09-17 01:29:23 -04001170 if (priv->rx_conf & RTL818X_RX_CONF_FCS)
1171 *total_flags |= FIF_FCSFAIL;
1172 if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
1173 *total_flags |= FIF_CONTROL;
1174 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
1175 *total_flags |= FIF_OTHER_BSS;
Michael Wu2fe14262007-10-20 20:05:31 -04001176 if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
1177 *total_flags |= FIF_ALLMULTI;
Johannes Berg4150c572007-09-17 01:29:23 -04001178
1179 rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
1180}
1181
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -05001182static int rtl8187_conf_tx(struct ieee80211_hw *dev, u16 queue,
1183 const struct ieee80211_tx_queue_params *params)
1184{
1185 struct rtl8187_priv *priv = dev->priv;
1186 u8 cw_min, cw_max;
1187
1188 if (queue > 3)
1189 return -EINVAL;
1190
1191 cw_min = fls(params->cw_min);
1192 cw_max = fls(params->cw_max);
1193
1194 if (priv->is_rtl8187b) {
1195 priv->aifsn[queue] = params->aifs;
1196
1197 /*
1198 * This is the structure of AC_*_PARAM registers in 8187B:
1199 * - TXOP limit field, bit offset = 16
1200 * - ECWmax, bit offset = 12
1201 * - ECWmin, bit offset = 8
1202 * - AIFS, bit offset = 0
1203 */
1204 rtl818x_iowrite32(priv, rtl8187b_ac_addr[queue],
1205 (params->txop << 16) | (cw_max << 12) |
1206 (cw_min << 8) | (params->aifs *
1207 priv->slot_time + SIFS_TIME));
1208 } else {
1209 if (queue != 0)
1210 return -EINVAL;
1211
1212 rtl818x_iowrite8(priv, &priv->map->CW_VAL,
1213 cw_min | (cw_max << 4));
1214 }
1215 return 0;
1216}
1217
Michael Wu605bebe2007-05-14 01:41:02 -04001218static const struct ieee80211_ops rtl8187_ops = {
1219 .tx = rtl8187_tx,
Johannes Berg4150c572007-09-17 01:29:23 -04001220 .start = rtl8187_start,
Michael Wu605bebe2007-05-14 01:41:02 -04001221 .stop = rtl8187_stop,
1222 .add_interface = rtl8187_add_interface,
1223 .remove_interface = rtl8187_remove_interface,
1224 .config = rtl8187_config,
1225 .config_interface = rtl8187_config_interface,
Herton Ronaldo Krzesinski64761072008-10-13 18:10:59 +00001226 .bss_info_changed = rtl8187_bss_info_changed,
Johannes Berg4150c572007-09-17 01:29:23 -04001227 .configure_filter = rtl8187_configure_filter,
Herton Ronaldo Krzesinskib4572a92008-11-13 10:39:15 -05001228 .conf_tx = rtl8187_conf_tx
Michael Wu605bebe2007-05-14 01:41:02 -04001229};
1230
1231static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
1232{
1233 struct ieee80211_hw *dev = eeprom->data;
1234 struct rtl8187_priv *priv = dev->priv;
1235 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1236
1237 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
1238 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
1239 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
1240 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
1241}
1242
1243static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
1244{
1245 struct ieee80211_hw *dev = eeprom->data;
1246 struct rtl8187_priv *priv = dev->priv;
1247 u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
1248
1249 if (eeprom->reg_data_in)
1250 reg |= RTL818X_EEPROM_CMD_WRITE;
1251 if (eeprom->reg_data_out)
1252 reg |= RTL818X_EEPROM_CMD_READ;
1253 if (eeprom->reg_data_clock)
1254 reg |= RTL818X_EEPROM_CMD_CK;
1255 if (eeprom->reg_chip_select)
1256 reg |= RTL818X_EEPROM_CMD_CS;
1257
1258 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
1259 udelay(10);
1260}
1261
1262static int __devinit rtl8187_probe(struct usb_interface *intf,
1263 const struct usb_device_id *id)
1264{
1265 struct usb_device *udev = interface_to_usbdev(intf);
1266 struct ieee80211_hw *dev;
1267 struct rtl8187_priv *priv;
1268 struct eeprom_93cx6 eeprom;
1269 struct ieee80211_channel *channel;
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +01001270 const char *chip_name;
Michael Wu605bebe2007-05-14 01:41:02 -04001271 u16 txpwr, reg;
1272 int err, i;
1273
1274 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
1275 if (!dev) {
1276 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
1277 return -ENOMEM;
1278 }
1279
1280 priv = dev->priv;
Larry Finger0e25b4e2008-07-08 09:43:43 -05001281 priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
Michael Wu605bebe2007-05-14 01:41:02 -04001282
1283 SET_IEEE80211_DEV(dev, &intf->dev);
1284 usb_set_intfdata(intf, dev);
1285 priv->udev = udev;
1286
1287 usb_get_dev(udev);
1288
1289 skb_queue_head_init(&priv->rx_queue);
Johannes Berg8318d782008-01-24 19:38:38 +01001290
1291 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
1292 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
1293
Michael Wu605bebe2007-05-14 01:41:02 -04001294 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
1295 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
1296 priv->map = (struct rtl818x_csr *)0xFF00;
Johannes Berg8318d782008-01-24 19:38:38 +01001297
1298 priv->band.band = IEEE80211_BAND_2GHZ;
1299 priv->band.channels = priv->channels;
1300 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
1301 priv->band.bitrates = priv->rates;
1302 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1303 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
1304
1305
Johannes Berg05c914f2008-09-11 00:01:58 +02001306 priv->mode = NL80211_IFTYPE_MONITOR;
Michael Wu605bebe2007-05-14 01:41:02 -04001307 dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
Larry Fingera7db74f2008-12-03 22:21:20 -06001308 IEEE80211_HW_SIGNAL_DBM |
Larry Finger0ccd58f2008-07-28 22:25:08 -05001309 IEEE80211_HW_RX_INCLUDES_FCS;
Michael Wu605bebe2007-05-14 01:41:02 -04001310
Michael Wu605bebe2007-05-14 01:41:02 -04001311 eeprom.data = dev;
1312 eeprom.register_read = rtl8187_eeprom_register_read;
1313 eeprom.register_write = rtl8187_eeprom_register_write;
1314 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1315 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1316 else
1317 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1318
1319 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
1320 udelay(10);
1321
1322 eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
1323 (__le16 __force *)dev->wiphy->perm_addr, 3);
1324 if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
1325 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
1326 "generated MAC address\n");
1327 random_ether_addr(dev->wiphy->perm_addr);
1328 }
1329
1330 channel = priv->channels;
1331 for (i = 0; i < 3; i++) {
1332 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
1333 &txpwr);
Johannes Berg8318d782008-01-24 19:38:38 +01001334 (*channel++).hw_value = txpwr & 0xFF;
1335 (*channel++).hw_value = txpwr >> 8;
Michael Wu605bebe2007-05-14 01:41:02 -04001336 }
1337 for (i = 0; i < 2; i++) {
1338 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
1339 &txpwr);
Johannes Berg8318d782008-01-24 19:38:38 +01001340 (*channel++).hw_value = txpwr & 0xFF;
1341 (*channel++).hw_value = txpwr >> 8;
Michael Wu605bebe2007-05-14 01:41:02 -04001342 }
Michael Wu605bebe2007-05-14 01:41:02 -04001343
1344 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
1345 &priv->txpwr_base);
1346
Michael Wuf6532112007-10-14 14:43:16 -04001347 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
1348 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
Michael Wu605bebe2007-05-14 01:41:02 -04001349 /* 0 means asic B-cut, we should use SW 3 wire
1350 * bit-by-bit banging for radio. 1 means we can use
1351 * USB specific request to write radio registers */
1352 priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
Michael Wuf6532112007-10-14 14:43:16 -04001353 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
Michael Wu605bebe2007-05-14 01:41:02 -04001354 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1355
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +01001356 if (!priv->is_rtl8187b) {
1357 u32 reg32;
1358 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1359 reg32 &= RTL818X_TX_CONF_HWVER_MASK;
1360 switch (reg32) {
Larry Finger0e25b4e2008-07-08 09:43:43 -05001361 case RTL818X_TX_CONF_R8187vD_B:
1362 /* Some RTL8187B devices have a USB ID of 0x8187
1363 * detect them here */
1364 chip_name = "RTL8187BvB(early)";
1365 priv->is_rtl8187b = 1;
1366 priv->hw_rev = RTL8187BvB;
1367 break;
1368 case RTL818X_TX_CONF_R8187vD:
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +01001369 chip_name = "RTL8187vD";
1370 break;
1371 default:
1372 chip_name = "RTL8187vB (default)";
1373 }
1374 } else {
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +01001375 /*
1376 * Force USB request to write radio registers for 8187B, Realtek
1377 * only uses it in their sources
1378 */
1379 /*if (priv->asic_rev == 0) {
1380 printk(KERN_WARNING "rtl8187: Forcing use of USB "
1381 "requests to write to radio registers\n");
1382 priv->asic_rev = 1;
1383 }*/
1384 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
1385 case RTL818X_R8187B_B:
1386 chip_name = "RTL8187BvB";
1387 priv->hw_rev = RTL8187BvB;
1388 break;
1389 case RTL818X_R8187B_D:
1390 chip_name = "RTL8187BvD";
1391 priv->hw_rev = RTL8187BvD;
1392 break;
1393 case RTL818X_R8187B_E:
1394 chip_name = "RTL8187BvE";
1395 priv->hw_rev = RTL8187BvE;
1396 break;
1397 default:
1398 chip_name = "RTL8187BvB (default)";
1399 priv->hw_rev = RTL8187BvB;
1400 }
1401 }
1402
Larry Finger0e25b4e2008-07-08 09:43:43 -05001403 if (!priv->is_rtl8187b) {
1404 for (i = 0; i < 2; i++) {
1405 eeprom_93cx6_read(&eeprom,
1406 RTL8187_EEPROM_TXPWR_CHAN_6 + i,
1407 &txpwr);
1408 (*channel++).hw_value = txpwr & 0xFF;
1409 (*channel++).hw_value = txpwr >> 8;
1410 }
1411 } else {
1412 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
1413 &txpwr);
1414 (*channel++).hw_value = txpwr & 0xFF;
1415
1416 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
1417 (*channel++).hw_value = txpwr & 0xFF;
1418
1419 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
1420 (*channel++).hw_value = txpwr & 0xFF;
1421 (*channel++).hw_value = txpwr >> 8;
1422 }
1423
Larry Fingera7db74f2008-12-03 22:21:20 -06001424 if (priv->is_rtl8187b)
Larry Fingerc8f96972008-11-13 12:30:41 -06001425 printk(KERN_WARNING "rtl8187: 8187B chip detected.\n");
Larry Finger0ccd58f2008-07-28 22:25:08 -05001426
Johannes Berg94778282008-10-10 13:21:59 +02001427 /*
1428 * XXX: Once this driver supports anything that requires
1429 * beacons it must implement IEEE80211_TX_CTL_ASSIGN_SEQ.
1430 */
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -07001431 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1432
Larry Finger0e25b4e2008-07-08 09:43:43 -05001433 if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
1434 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
1435 " info!\n");
1436
Michael Wuf6532112007-10-14 14:43:16 -04001437 priv->rf = rtl8187_detect_rf(dev);
Larry Finger0e25b4e2008-07-08 09:43:43 -05001438 dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
1439 sizeof(struct rtl8187_tx_hdr) :
1440 sizeof(struct rtl8187b_tx_hdr);
1441 if (!priv->is_rtl8187b)
1442 dev->queues = 1;
1443 else
1444 dev->queues = 4;
Michael Wu605bebe2007-05-14 01:41:02 -04001445
1446 err = ieee80211_register_hw(dev);
1447 if (err) {
1448 printk(KERN_ERR "rtl8187: Cannot register device\n");
1449 goto err_free_dev;
1450 }
Larry Finger7dcdd072008-07-31 19:30:48 -05001451 mutex_init(&priv->conf_mutex);
Herton Ronaldo Krzesinski3517afd2008-11-13 10:39:16 -05001452 skb_queue_head_init(&priv->b_tx_status.queue);
Michael Wu605bebe2007-05-14 01:41:02 -04001453
Johannes Berge1749612008-10-27 15:59:26 -07001454 printk(KERN_INFO "%s: hwaddr %pM, %s V%d + %s\n",
1455 wiphy_name(dev->wiphy), dev->wiphy->perm_addr,
Hin-Tak Leung6f7853f2008-07-08 12:36:04 +01001456 chip_name, priv->asic_rev, priv->rf->name);
Michael Wu605bebe2007-05-14 01:41:02 -04001457
1458 return 0;
1459
1460 err_free_dev:
1461 ieee80211_free_hw(dev);
1462 usb_set_intfdata(intf, NULL);
1463 usb_put_dev(udev);
1464 return err;
1465}
1466
1467static void __devexit rtl8187_disconnect(struct usb_interface *intf)
1468{
1469 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1470 struct rtl8187_priv *priv;
1471
1472 if (!dev)
1473 return;
1474
1475 ieee80211_unregister_hw(dev);
1476
1477 priv = dev->priv;
1478 usb_put_dev(interface_to_usbdev(intf));
1479 ieee80211_free_hw(dev);
1480}
1481
1482static struct usb_driver rtl8187_driver = {
1483 .name = KBUILD_MODNAME,
1484 .id_table = rtl8187_table,
1485 .probe = rtl8187_probe,
Ihar Hrachyshka500c1192008-07-09 01:11:59 +03001486 .disconnect = __devexit_p(rtl8187_disconnect),
Michael Wu605bebe2007-05-14 01:41:02 -04001487};
1488
1489static int __init rtl8187_init(void)
1490{
1491 return usb_register(&rtl8187_driver);
1492}
1493
1494static void __exit rtl8187_exit(void)
1495{
1496 usb_deregister(&rtl8187_driver);
1497}
1498
1499module_init(rtl8187_init);
1500module_exit(rtl8187_exit);