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605bebe2 MW |
1 | /* |
2 | * Linux device driver for RTL8187 | |
3 | * | |
4 | * Copyright 2007 Michael Wu <flamingice@sourmilk.net> | |
5 | * Copyright 2007 Andrea Merello <andreamrl@tiscali.it> | |
6 | * | |
7 | * Based on the r8187 driver, which is: | |
8 | * Copyright 2005 Andrea Merello <andreamrl@tiscali.it>, et al. | |
9 | * | |
0aec00ae JL |
10 | * Magic delays and register offsets below are taken from the original |
11 | * r8187 driver sources. Thanks to Realtek for their support! | |
605bebe2 MW |
12 | * |
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. | |
16 | */ | |
17 | ||
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> | |
24 | ||
25 | #include "rtl8187.h" | |
26 | #include "rtl8187_rtl8225.h" | |
27 | ||
28 | MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); | |
29 | MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>"); | |
30 | MODULE_DESCRIPTION("RTL8187 USB wireless driver"); | |
31 | MODULE_LICENSE("GPL"); | |
32 | ||
33 | static struct usb_device_id rtl8187_table[] __devinitdata = { | |
34 | /* Realtek */ | |
35 | {USB_DEVICE(0x0bda, 0x8187)}, | |
36 | /* Netgear */ | |
37 | {USB_DEVICE(0x0846, 0x6100)}, | |
38 | {USB_DEVICE(0x0846, 0x6a00)}, | |
c3cf60a9 MW |
39 | /* HP */ |
40 | {USB_DEVICE(0x03f0, 0xca02)}, | |
9934550d MM |
41 | /* Sitecom */ |
42 | {USB_DEVICE(0x0df6, 0x000d)}, | |
605bebe2 MW |
43 | {} |
44 | }; | |
45 | ||
46 | MODULE_DEVICE_TABLE(usb, rtl8187_table); | |
47 | ||
4150c572 JB |
48 | static void rtl8187_iowrite_async_cb(struct urb *urb) |
49 | { | |
50 | kfree(urb->context); | |
51 | usb_free_urb(urb); | |
52 | } | |
53 | ||
54 | static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr, | |
55 | void *data, u16 len) | |
56 | { | |
57 | struct usb_ctrlrequest *dr; | |
58 | struct urb *urb; | |
59 | struct rtl8187_async_write_data { | |
60 | u8 data[4]; | |
61 | struct usb_ctrlrequest dr; | |
62 | } *buf; | |
63 | ||
64 | buf = kmalloc(sizeof(*buf), GFP_ATOMIC); | |
65 | if (!buf) | |
66 | return; | |
67 | ||
68 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
69 | if (!urb) { | |
70 | kfree(buf); | |
71 | return; | |
72 | } | |
73 | ||
74 | dr = &buf->dr; | |
75 | ||
76 | dr->bRequestType = RTL8187_REQT_WRITE; | |
77 | dr->bRequest = RTL8187_REQ_SET_REG; | |
78 | dr->wValue = addr; | |
79 | dr->wIndex = 0; | |
80 | dr->wLength = cpu_to_le16(len); | |
81 | ||
82 | memcpy(buf, data, len); | |
83 | ||
84 | usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0), | |
85 | (unsigned char *)dr, buf, len, | |
86 | rtl8187_iowrite_async_cb, buf); | |
87 | usb_submit_urb(urb, GFP_ATOMIC); | |
88 | } | |
89 | ||
90 | static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv, | |
91 | __le32 *addr, u32 val) | |
92 | { | |
93 | __le32 buf = cpu_to_le32(val); | |
94 | ||
95 | rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr), | |
96 | &buf, sizeof(buf)); | |
97 | } | |
98 | ||
605bebe2 MW |
99 | void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data) |
100 | { | |
101 | struct rtl8187_priv *priv = dev->priv; | |
102 | ||
103 | data <<= 8; | |
104 | data |= addr | 0x80; | |
105 | ||
106 | rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF); | |
107 | rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF); | |
108 | rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF); | |
109 | rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF); | |
110 | ||
111 | msleep(1); | |
112 | } | |
113 | ||
114 | static void rtl8187_tx_cb(struct urb *urb) | |
115 | { | |
116 | struct ieee80211_tx_status status = { {0} }; | |
117 | struct sk_buff *skb = (struct sk_buff *)urb->context; | |
118 | struct rtl8187_tx_info *info = (struct rtl8187_tx_info *)skb->cb; | |
119 | ||
120 | usb_free_urb(info->urb); | |
121 | if (info->control) | |
122 | memcpy(&status.control, info->control, sizeof(status.control)); | |
123 | kfree(info->control); | |
124 | skb_pull(skb, sizeof(struct rtl8187_tx_hdr)); | |
125 | status.flags |= IEEE80211_TX_STATUS_ACK; | |
126 | ieee80211_tx_status_irqsafe(info->dev, skb, &status); | |
127 | } | |
128 | ||
129 | static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb, | |
130 | struct ieee80211_tx_control *control) | |
131 | { | |
132 | struct rtl8187_priv *priv = dev->priv; | |
133 | struct rtl8187_tx_hdr *hdr; | |
134 | struct rtl8187_tx_info *info; | |
135 | struct urb *urb; | |
98798f48 MW |
136 | __le16 rts_dur = 0; |
137 | u32 flags; | |
605bebe2 MW |
138 | |
139 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
140 | if (!urb) { | |
141 | kfree_skb(skb); | |
142 | return 0; | |
143 | } | |
144 | ||
98798f48 MW |
145 | flags = skb->len; |
146 | flags |= RTL8187_TX_FLAG_NO_ENCRYPT; | |
147 | flags |= control->rts_cts_rate << 19; | |
148 | flags |= control->tx_rate << 24; | |
149 | if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb->data)) | |
150 | flags |= RTL8187_TX_FLAG_MORE_FRAG; | |
605bebe2 | 151 | if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) { |
98798f48 MW |
152 | flags |= RTL8187_TX_FLAG_RTS; |
153 | rts_dur = ieee80211_rts_duration(dev, priv->if_id, skb->len, control); | |
605bebe2 MW |
154 | } |
155 | if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) | |
98798f48 MW |
156 | flags |= RTL8187_TX_FLAG_CTS; |
157 | ||
158 | hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr)); | |
159 | hdr->flags = cpu_to_le32(flags); | |
605bebe2 | 160 | hdr->len = 0; |
98798f48 MW |
161 | hdr->rts_duration = rts_dur; |
162 | hdr->retry = cpu_to_le32(control->retry_limit << 8); | |
605bebe2 MW |
163 | |
164 | info = (struct rtl8187_tx_info *)skb->cb; | |
165 | info->control = kmemdup(control, sizeof(*control), GFP_ATOMIC); | |
166 | info->urb = urb; | |
167 | info->dev = dev; | |
168 | usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, 2), | |
169 | hdr, skb->len, rtl8187_tx_cb, skb); | |
170 | usb_submit_urb(urb, GFP_ATOMIC); | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
175 | static void rtl8187_rx_cb(struct urb *urb) | |
176 | { | |
177 | struct sk_buff *skb = (struct sk_buff *)urb->context; | |
178 | struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb; | |
179 | struct ieee80211_hw *dev = info->dev; | |
180 | struct rtl8187_priv *priv = dev->priv; | |
181 | struct rtl8187_rx_hdr *hdr; | |
182 | struct ieee80211_rx_status rx_status = { 0 }; | |
183 | int rate, signal; | |
4150c572 | 184 | u32 flags; |
605bebe2 MW |
185 | |
186 | spin_lock(&priv->rx_queue.lock); | |
187 | if (skb->next) | |
188 | __skb_unlink(skb, &priv->rx_queue); | |
189 | else { | |
190 | spin_unlock(&priv->rx_queue.lock); | |
191 | return; | |
192 | } | |
193 | spin_unlock(&priv->rx_queue.lock); | |
194 | ||
195 | if (unlikely(urb->status)) { | |
196 | usb_free_urb(urb); | |
197 | dev_kfree_skb_irq(skb); | |
198 | return; | |
199 | } | |
200 | ||
201 | skb_put(skb, urb->actual_length); | |
202 | hdr = (struct rtl8187_rx_hdr *)(skb_tail_pointer(skb) - sizeof(*hdr)); | |
4150c572 JB |
203 | flags = le32_to_cpu(hdr->flags); |
204 | skb_trim(skb, flags & 0x0FFF); | |
605bebe2 MW |
205 | |
206 | signal = hdr->agc >> 1; | |
4150c572 | 207 | rate = (flags >> 20) & 0xF; |
605bebe2 MW |
208 | if (rate > 3) { /* OFDM rate */ |
209 | if (signal > 90) | |
210 | signal = 90; | |
211 | else if (signal < 25) | |
212 | signal = 25; | |
213 | signal = 90 - signal; | |
214 | } else { /* CCK rate */ | |
215 | if (signal > 95) | |
216 | signal = 95; | |
217 | else if (signal < 30) | |
218 | signal = 30; | |
219 | signal = 95 - signal; | |
220 | } | |
221 | ||
222 | rx_status.antenna = (hdr->signal >> 7) & 1; | |
223 | rx_status.signal = 64 - min(hdr->noise, (u8)64); | |
224 | rx_status.ssi = signal; | |
225 | rx_status.rate = rate; | |
226 | rx_status.freq = dev->conf.freq; | |
227 | rx_status.channel = dev->conf.channel; | |
228 | rx_status.phymode = dev->conf.phymode; | |
229 | rx_status.mactime = le64_to_cpu(hdr->mac_time); | |
03bffc13 | 230 | rx_status.flag |= RX_FLAG_TSFT; |
4150c572 JB |
231 | if (flags & (1 << 13)) |
232 | rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; | |
605bebe2 MW |
233 | ieee80211_rx_irqsafe(dev, skb, &rx_status); |
234 | ||
235 | skb = dev_alloc_skb(RTL8187_MAX_RX); | |
236 | if (unlikely(!skb)) { | |
237 | usb_free_urb(urb); | |
238 | /* TODO check rx queue length and refill *somewhere* */ | |
239 | return; | |
240 | } | |
241 | ||
242 | info = (struct rtl8187_rx_info *)skb->cb; | |
243 | info->urb = urb; | |
244 | info->dev = dev; | |
245 | urb->transfer_buffer = skb_tail_pointer(skb); | |
246 | urb->context = skb; | |
247 | skb_queue_tail(&priv->rx_queue, skb); | |
248 | ||
249 | usb_submit_urb(urb, GFP_ATOMIC); | |
250 | } | |
251 | ||
252 | static int rtl8187_init_urbs(struct ieee80211_hw *dev) | |
253 | { | |
254 | struct rtl8187_priv *priv = dev->priv; | |
255 | struct urb *entry; | |
256 | struct sk_buff *skb; | |
257 | struct rtl8187_rx_info *info; | |
258 | ||
259 | while (skb_queue_len(&priv->rx_queue) < 8) { | |
260 | skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL); | |
261 | if (!skb) | |
262 | break; | |
263 | entry = usb_alloc_urb(0, GFP_KERNEL); | |
264 | if (!entry) { | |
265 | kfree_skb(skb); | |
266 | break; | |
267 | } | |
268 | usb_fill_bulk_urb(entry, priv->udev, | |
269 | usb_rcvbulkpipe(priv->udev, 1), | |
270 | skb_tail_pointer(skb), | |
271 | RTL8187_MAX_RX, rtl8187_rx_cb, skb); | |
272 | info = (struct rtl8187_rx_info *)skb->cb; | |
273 | info->urb = entry; | |
274 | info->dev = dev; | |
275 | skb_queue_tail(&priv->rx_queue, skb); | |
276 | usb_submit_urb(entry, GFP_KERNEL); | |
277 | } | |
278 | ||
279 | return 0; | |
280 | } | |
281 | ||
282 | static int rtl8187_init_hw(struct ieee80211_hw *dev) | |
283 | { | |
284 | struct rtl8187_priv *priv = dev->priv; | |
285 | u8 reg; | |
286 | int i; | |
287 | ||
288 | /* reset */ | |
289 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
290 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); | |
291 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE); | |
292 | rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON); | |
293 | rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON); | |
294 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE); | |
295 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
296 | ||
297 | rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); | |
298 | ||
299 | msleep(200); | |
300 | rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10); | |
301 | rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11); | |
302 | rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00); | |
303 | msleep(200); | |
304 | ||
305 | reg = rtl818x_ioread8(priv, &priv->map->CMD); | |
306 | reg &= (1 << 1); | |
307 | reg |= RTL818X_CMD_RESET; | |
308 | rtl818x_iowrite8(priv, &priv->map->CMD, reg); | |
309 | ||
310 | i = 10; | |
311 | do { | |
312 | msleep(2); | |
313 | if (!(rtl818x_ioread8(priv, &priv->map->CMD) & | |
314 | RTL818X_CMD_RESET)) | |
315 | break; | |
316 | } while (--i); | |
317 | ||
318 | if (!i) { | |
319 | printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy)); | |
320 | return -ETIMEDOUT; | |
321 | } | |
322 | ||
323 | /* reload registers from eeprom */ | |
324 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD); | |
325 | ||
326 | i = 10; | |
327 | do { | |
328 | msleep(4); | |
329 | if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) & | |
330 | RTL818X_EEPROM_CMD_CONFIG)) | |
331 | break; | |
332 | } while (--i); | |
333 | ||
334 | if (!i) { | |
335 | printk(KERN_ERR "%s: eeprom reset timeout!\n", | |
336 | wiphy_name(dev->wiphy)); | |
337 | return -ETIMEDOUT; | |
338 | } | |
339 | ||
340 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
341 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); | |
342 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE); | |
343 | rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON); | |
344 | rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON); | |
345 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE); | |
346 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
347 | ||
348 | /* setup card */ | |
349 | rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0); | |
350 | rtl818x_iowrite8(priv, &priv->map->GPIO, 0); | |
351 | ||
352 | rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8)); | |
353 | rtl818x_iowrite8(priv, &priv->map->GPIO, 1); | |
354 | rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0); | |
355 | ||
356 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
605bebe2 MW |
357 | |
358 | rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF); | |
359 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG1); | |
360 | reg &= 0x3F; | |
361 | reg |= 0x80; | |
362 | rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg); | |
363 | ||
364 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
365 | ||
366 | rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0); | |
367 | rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0); | |
368 | rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81); | |
369 | ||
370 | // TODO: set RESP_RATE and BRSR properly | |
371 | rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0); | |
372 | rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); | |
373 | ||
374 | /* host_usb_init */ | |
375 | rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0); | |
376 | rtl818x_iowrite8(priv, &priv->map->GPIO, 0); | |
377 | reg = rtl818x_ioread8(priv, (u8 *)0xFE53); | |
378 | rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7)); | |
379 | rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8)); | |
380 | rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20); | |
381 | rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0); | |
382 | rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80); | |
383 | rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80); | |
384 | rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80); | |
385 | msleep(100); | |
386 | ||
387 | rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008); | |
388 | rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF); | |
389 | rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044); | |
390 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
391 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44); | |
392 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
393 | rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7); | |
394 | msleep(100); | |
395 | ||
f6532111 | 396 | priv->rf->init(dev); |
605bebe2 MW |
397 | |
398 | rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); | |
f6532111 MW |
399 | reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1; |
400 | rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1); | |
605bebe2 MW |
401 | rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10); |
402 | rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80); | |
403 | rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60); | |
f6532111 | 404 | rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg); |
605bebe2 MW |
405 | |
406 | return 0; | |
407 | } | |
408 | ||
4150c572 | 409 | static int rtl8187_start(struct ieee80211_hw *dev) |
605bebe2 MW |
410 | { |
411 | struct rtl8187_priv *priv = dev->priv; | |
412 | u32 reg; | |
413 | int ret; | |
414 | ||
415 | ret = rtl8187_init_hw(dev); | |
416 | if (ret) | |
417 | return ret; | |
418 | ||
419 | rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF); | |
420 | ||
2fe14263 MW |
421 | rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0); |
422 | rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0); | |
423 | ||
605bebe2 MW |
424 | rtl8187_init_urbs(dev); |
425 | ||
426 | reg = RTL818X_RX_CONF_ONLYERLPKT | | |
427 | RTL818X_RX_CONF_RX_AUTORESETPHY | | |
428 | RTL818X_RX_CONF_BSSID | | |
429 | RTL818X_RX_CONF_MGMT | | |
605bebe2 MW |
430 | RTL818X_RX_CONF_DATA | |
431 | (7 << 13 /* RX FIFO threshold NONE */) | | |
432 | (7 << 10 /* MAX RX DMA */) | | |
433 | RTL818X_RX_CONF_BROADCAST | | |
605bebe2 | 434 | RTL818X_RX_CONF_NICMAC; |
605bebe2 | 435 | |
4150c572 | 436 | priv->rx_conf = reg; |
605bebe2 MW |
437 | rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg); |
438 | ||
439 | reg = rtl818x_ioread8(priv, &priv->map->CW_CONF); | |
440 | reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT; | |
441 | reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT; | |
442 | rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg); | |
443 | ||
444 | reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); | |
445 | reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT; | |
446 | reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT; | |
447 | reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT; | |
448 | rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); | |
449 | ||
450 | reg = RTL818X_TX_CONF_CW_MIN | | |
451 | (7 << 21 /* MAX TX DMA */) | | |
452 | RTL818X_TX_CONF_NO_ICV; | |
453 | rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg); | |
454 | ||
455 | reg = rtl818x_ioread8(priv, &priv->map->CMD); | |
456 | reg |= RTL818X_CMD_TX_ENABLE; | |
457 | reg |= RTL818X_CMD_RX_ENABLE; | |
458 | rtl818x_iowrite8(priv, &priv->map->CMD, reg); | |
459 | ||
460 | return 0; | |
461 | } | |
462 | ||
4150c572 | 463 | static void rtl8187_stop(struct ieee80211_hw *dev) |
605bebe2 MW |
464 | { |
465 | struct rtl8187_priv *priv = dev->priv; | |
466 | struct rtl8187_rx_info *info; | |
467 | struct sk_buff *skb; | |
468 | u32 reg; | |
469 | ||
470 | rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); | |
471 | ||
472 | reg = rtl818x_ioread8(priv, &priv->map->CMD); | |
473 | reg &= ~RTL818X_CMD_TX_ENABLE; | |
474 | reg &= ~RTL818X_CMD_RX_ENABLE; | |
475 | rtl818x_iowrite8(priv, &priv->map->CMD, reg); | |
476 | ||
f6532111 | 477 | priv->rf->stop(dev); |
605bebe2 MW |
478 | |
479 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
480 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG4); | |
481 | rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF); | |
482 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
483 | ||
484 | while ((skb = skb_dequeue(&priv->rx_queue))) { | |
485 | info = (struct rtl8187_rx_info *)skb->cb; | |
486 | usb_kill_urb(info->urb); | |
487 | kfree_skb(skb); | |
488 | } | |
4150c572 | 489 | return; |
605bebe2 MW |
490 | } |
491 | ||
492 | static int rtl8187_add_interface(struct ieee80211_hw *dev, | |
493 | struct ieee80211_if_init_conf *conf) | |
494 | { | |
495 | struct rtl8187_priv *priv = dev->priv; | |
4150c572 | 496 | int i; |
605bebe2 | 497 | |
4150c572 JB |
498 | if (priv->mode != IEEE80211_IF_TYPE_MNTR) |
499 | return -EOPNOTSUPP; | |
605bebe2 MW |
500 | |
501 | switch (conf->type) { | |
502 | case IEEE80211_IF_TYPE_STA: | |
605bebe2 MW |
503 | priv->mode = conf->type; |
504 | break; | |
505 | default: | |
506 | return -EOPNOTSUPP; | |
507 | } | |
508 | ||
4150c572 JB |
509 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); |
510 | for (i = 0; i < ETH_ALEN; i++) | |
511 | rtl818x_iowrite8(priv, &priv->map->MAC[i], | |
512 | ((u8 *)conf->mac_addr)[i]); | |
513 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
605bebe2 MW |
514 | |
515 | return 0; | |
516 | } | |
517 | ||
518 | static void rtl8187_remove_interface(struct ieee80211_hw *dev, | |
519 | struct ieee80211_if_init_conf *conf) | |
520 | { | |
521 | struct rtl8187_priv *priv = dev->priv; | |
4150c572 | 522 | priv->mode = IEEE80211_IF_TYPE_MNTR; |
605bebe2 MW |
523 | } |
524 | ||
525 | static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) | |
526 | { | |
527 | struct rtl8187_priv *priv = dev->priv; | |
f6532111 MW |
528 | u32 reg; |
529 | ||
530 | reg = rtl818x_ioread32(priv, &priv->map->TX_CONF); | |
531 | /* Enable TX loopback on MAC level to avoid TX during channel | |
532 | * changes, as this has be seen to causes problems and the | |
533 | * card will stop work until next reset | |
534 | */ | |
535 | rtl818x_iowrite32(priv, &priv->map->TX_CONF, | |
536 | reg | RTL818X_TX_CONF_LOOPBACK_MAC); | |
537 | msleep(10); | |
538 | priv->rf->set_chan(dev, conf); | |
539 | msleep(10); | |
540 | rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg); | |
605bebe2 MW |
541 | |
542 | rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22); | |
543 | ||
544 | if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) { | |
545 | rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9); | |
546 | rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14); | |
547 | rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14); | |
548 | rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73); | |
549 | } else { | |
550 | rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14); | |
551 | rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24); | |
552 | rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24); | |
553 | rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5); | |
554 | } | |
555 | ||
556 | rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2); | |
557 | rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100); | |
558 | rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100); | |
559 | rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100); | |
560 | return 0; | |
561 | } | |
562 | ||
563 | static int rtl8187_config_interface(struct ieee80211_hw *dev, int if_id, | |
564 | struct ieee80211_if_conf *conf) | |
565 | { | |
566 | struct rtl8187_priv *priv = dev->priv; | |
567 | int i; | |
568 | ||
7e9ed188 DD |
569 | priv->if_id = if_id; |
570 | ||
605bebe2 MW |
571 | for (i = 0; i < ETH_ALEN; i++) |
572 | rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]); | |
573 | ||
574 | if (is_valid_ether_addr(conf->bssid)) | |
575 | rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_INFRA); | |
576 | else | |
577 | rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_NO_LINK); | |
578 | ||
579 | return 0; | |
580 | } | |
581 | ||
4150c572 JB |
582 | static void rtl8187_configure_filter(struct ieee80211_hw *dev, |
583 | unsigned int changed_flags, | |
584 | unsigned int *total_flags, | |
2fe14263 | 585 | int mc_count, struct dev_addr_list *mclist) |
4150c572 JB |
586 | { |
587 | struct rtl8187_priv *priv = dev->priv; | |
588 | ||
4150c572 JB |
589 | if (changed_flags & FIF_FCSFAIL) |
590 | priv->rx_conf ^= RTL818X_RX_CONF_FCS; | |
591 | if (changed_flags & FIF_CONTROL) | |
592 | priv->rx_conf ^= RTL818X_RX_CONF_CTRL; | |
593 | if (changed_flags & FIF_OTHER_BSS) | |
594 | priv->rx_conf ^= RTL818X_RX_CONF_MONITOR; | |
2fe14263 | 595 | if (*total_flags & FIF_ALLMULTI || mc_count > 0) |
4150c572 | 596 | priv->rx_conf |= RTL818X_RX_CONF_MULTICAST; |
2fe14263 MW |
597 | else |
598 | priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST; | |
599 | ||
600 | *total_flags = 0; | |
4150c572 | 601 | |
4150c572 JB |
602 | if (priv->rx_conf & RTL818X_RX_CONF_FCS) |
603 | *total_flags |= FIF_FCSFAIL; | |
604 | if (priv->rx_conf & RTL818X_RX_CONF_CTRL) | |
605 | *total_flags |= FIF_CONTROL; | |
606 | if (priv->rx_conf & RTL818X_RX_CONF_MONITOR) | |
607 | *total_flags |= FIF_OTHER_BSS; | |
2fe14263 MW |
608 | if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST) |
609 | *total_flags |= FIF_ALLMULTI; | |
4150c572 JB |
610 | |
611 | rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf); | |
612 | } | |
613 | ||
605bebe2 MW |
614 | static const struct ieee80211_ops rtl8187_ops = { |
615 | .tx = rtl8187_tx, | |
4150c572 | 616 | .start = rtl8187_start, |
605bebe2 MW |
617 | .stop = rtl8187_stop, |
618 | .add_interface = rtl8187_add_interface, | |
619 | .remove_interface = rtl8187_remove_interface, | |
620 | .config = rtl8187_config, | |
621 | .config_interface = rtl8187_config_interface, | |
4150c572 | 622 | .configure_filter = rtl8187_configure_filter, |
605bebe2 MW |
623 | }; |
624 | ||
625 | static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom) | |
626 | { | |
627 | struct ieee80211_hw *dev = eeprom->data; | |
628 | struct rtl8187_priv *priv = dev->priv; | |
629 | u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD); | |
630 | ||
631 | eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE; | |
632 | eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ; | |
633 | eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK; | |
634 | eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS; | |
635 | } | |
636 | ||
637 | static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom) | |
638 | { | |
639 | struct ieee80211_hw *dev = eeprom->data; | |
640 | struct rtl8187_priv *priv = dev->priv; | |
641 | u8 reg = RTL818X_EEPROM_CMD_PROGRAM; | |
642 | ||
643 | if (eeprom->reg_data_in) | |
644 | reg |= RTL818X_EEPROM_CMD_WRITE; | |
645 | if (eeprom->reg_data_out) | |
646 | reg |= RTL818X_EEPROM_CMD_READ; | |
647 | if (eeprom->reg_data_clock) | |
648 | reg |= RTL818X_EEPROM_CMD_CK; | |
649 | if (eeprom->reg_chip_select) | |
650 | reg |= RTL818X_EEPROM_CMD_CS; | |
651 | ||
652 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg); | |
653 | udelay(10); | |
654 | } | |
655 | ||
656 | static int __devinit rtl8187_probe(struct usb_interface *intf, | |
657 | const struct usb_device_id *id) | |
658 | { | |
659 | struct usb_device *udev = interface_to_usbdev(intf); | |
660 | struct ieee80211_hw *dev; | |
661 | struct rtl8187_priv *priv; | |
662 | struct eeprom_93cx6 eeprom; | |
663 | struct ieee80211_channel *channel; | |
664 | u16 txpwr, reg; | |
665 | int err, i; | |
0795af57 | 666 | DECLARE_MAC_BUF(mac); |
605bebe2 MW |
667 | |
668 | dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops); | |
669 | if (!dev) { | |
670 | printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n"); | |
671 | return -ENOMEM; | |
672 | } | |
673 | ||
674 | priv = dev->priv; | |
675 | ||
676 | SET_IEEE80211_DEV(dev, &intf->dev); | |
677 | usb_set_intfdata(intf, dev); | |
678 | priv->udev = udev; | |
679 | ||
680 | usb_get_dev(udev); | |
681 | ||
682 | skb_queue_head_init(&priv->rx_queue); | |
683 | memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels)); | |
684 | memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates)); | |
685 | priv->map = (struct rtl818x_csr *)0xFF00; | |
686 | priv->modes[0].mode = MODE_IEEE80211G; | |
687 | priv->modes[0].num_rates = ARRAY_SIZE(rtl818x_rates); | |
688 | priv->modes[0].rates = priv->rates; | |
689 | priv->modes[0].num_channels = ARRAY_SIZE(rtl818x_channels); | |
690 | priv->modes[0].channels = priv->channels; | |
691 | priv->modes[1].mode = MODE_IEEE80211B; | |
692 | priv->modes[1].num_rates = 4; | |
693 | priv->modes[1].rates = priv->rates; | |
694 | priv->modes[1].num_channels = ARRAY_SIZE(rtl818x_channels); | |
695 | priv->modes[1].channels = priv->channels; | |
4150c572 | 696 | priv->mode = IEEE80211_IF_TYPE_MNTR; |
605bebe2 | 697 | dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | |
7848ba7d | 698 | IEEE80211_HW_RX_INCLUDES_FCS; |
605bebe2 MW |
699 | dev->extra_tx_headroom = sizeof(struct rtl8187_tx_hdr); |
700 | dev->queues = 1; | |
701 | dev->max_rssi = 65; | |
702 | dev->max_signal = 64; | |
703 | ||
704 | for (i = 0; i < 2; i++) | |
705 | if ((err = ieee80211_register_hwmode(dev, &priv->modes[i]))) | |
706 | goto err_free_dev; | |
707 | ||
708 | eeprom.data = dev; | |
709 | eeprom.register_read = rtl8187_eeprom_register_read; | |
710 | eeprom.register_write = rtl8187_eeprom_register_write; | |
711 | if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6)) | |
712 | eeprom.width = PCI_EEPROM_WIDTH_93C66; | |
713 | else | |
714 | eeprom.width = PCI_EEPROM_WIDTH_93C46; | |
715 | ||
716 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
717 | udelay(10); | |
718 | ||
719 | eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR, | |
720 | (__le16 __force *)dev->wiphy->perm_addr, 3); | |
721 | if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { | |
722 | printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly " | |
723 | "generated MAC address\n"); | |
724 | random_ether_addr(dev->wiphy->perm_addr); | |
725 | } | |
726 | ||
727 | channel = priv->channels; | |
728 | for (i = 0; i < 3; i++) { | |
729 | eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i, | |
730 | &txpwr); | |
731 | (*channel++).val = txpwr & 0xFF; | |
732 | (*channel++).val = txpwr >> 8; | |
733 | } | |
734 | for (i = 0; i < 2; i++) { | |
735 | eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i, | |
736 | &txpwr); | |
737 | (*channel++).val = txpwr & 0xFF; | |
738 | (*channel++).val = txpwr >> 8; | |
739 | } | |
740 | for (i = 0; i < 2; i++) { | |
741 | eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6 + i, | |
742 | &txpwr); | |
743 | (*channel++).val = txpwr & 0xFF; | |
744 | (*channel++).val = txpwr >> 8; | |
745 | } | |
746 | ||
747 | eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE, | |
748 | &priv->txpwr_base); | |
749 | ||
f6532111 MW |
750 | reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1; |
751 | rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1); | |
605bebe2 MW |
752 | /* 0 means asic B-cut, we should use SW 3 wire |
753 | * bit-by-bit banging for radio. 1 means we can use | |
754 | * USB specific request to write radio registers */ | |
755 | priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3; | |
f6532111 | 756 | rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg); |
605bebe2 MW |
757 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
758 | ||
f6532111 | 759 | priv->rf = rtl8187_detect_rf(dev); |
605bebe2 MW |
760 | |
761 | err = ieee80211_register_hw(dev); | |
762 | if (err) { | |
763 | printk(KERN_ERR "rtl8187: Cannot register device\n"); | |
764 | goto err_free_dev; | |
765 | } | |
766 | ||
0795af57 JP |
767 | printk(KERN_INFO "%s: hwaddr %s, rtl8187 V%d + %s\n", |
768 | wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr), | |
f6532111 | 769 | priv->asic_rev, priv->rf->name); |
605bebe2 MW |
770 | |
771 | return 0; | |
772 | ||
773 | err_free_dev: | |
774 | ieee80211_free_hw(dev); | |
775 | usb_set_intfdata(intf, NULL); | |
776 | usb_put_dev(udev); | |
777 | return err; | |
778 | } | |
779 | ||
780 | static void __devexit rtl8187_disconnect(struct usb_interface *intf) | |
781 | { | |
782 | struct ieee80211_hw *dev = usb_get_intfdata(intf); | |
783 | struct rtl8187_priv *priv; | |
784 | ||
785 | if (!dev) | |
786 | return; | |
787 | ||
788 | ieee80211_unregister_hw(dev); | |
789 | ||
790 | priv = dev->priv; | |
791 | usb_put_dev(interface_to_usbdev(intf)); | |
792 | ieee80211_free_hw(dev); | |
793 | } | |
794 | ||
795 | static struct usb_driver rtl8187_driver = { | |
796 | .name = KBUILD_MODNAME, | |
797 | .id_table = rtl8187_table, | |
798 | .probe = rtl8187_probe, | |
799 | .disconnect = rtl8187_disconnect, | |
800 | }; | |
801 | ||
802 | static int __init rtl8187_init(void) | |
803 | { | |
804 | return usb_register(&rtl8187_driver); | |
805 | } | |
806 | ||
807 | static void __exit rtl8187_exit(void) | |
808 | { | |
809 | usb_deregister(&rtl8187_driver); | |
810 | } | |
811 | ||
812 | module_init(rtl8187_init); | |
813 | module_exit(rtl8187_exit); |