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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [net/] [wireless/] [rtl8187_dev.c] - Blame information for rev 62

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1 62 marcus.erl 
/*
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 
 *
10 
 * Magic delays and register offsets below are taken from the original
11 
 * r8187 driver sources.  Thanks to Realtek for their support!
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)},
39 
        /* HP */
40 
        {USB_DEVICE(0x03f0, 0xca02)},
41 
        /* Sitecom */
42 
        {USB_DEVICE(0x0df6, 0x000d)},
43 
        {}
44 
};
45 
 
46 
MODULE_DEVICE_TABLE(usb, rtl8187_table);
47 
 
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 
 
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;
136 
        __le16 rts_dur = 0;
137 
        u32 flags;
138 
 
139 
        urb = usb_alloc_urb(0, GFP_ATOMIC);
140 
        if (!urb) {
141 
                kfree_skb(skb);
142 
                return 0;
143 
        }
144 
 
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;
151 
        if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
152 
                flags |= RTL8187_TX_FLAG_RTS;
153 
                rts_dur = ieee80211_rts_duration(dev, priv->if_id, skb->len, control);
154 
        }
155 
        if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
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);
160 
        hdr->len = 0;
161 
        hdr->rts_duration = rts_dur;
162 
        hdr->retry = cpu_to_le32(control->retry_limit << 8);
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;
184 
        u32 flags;
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));
203 
        flags = le32_to_cpu(hdr->flags);
204 
        skb_trim(skb, flags & 0x0FFF);
205 
 
206 
        signal = hdr->agc >> 1;
207 
        rate = (flags >> 20) & 0xF;
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);
230 
        if (flags & (1 << 13))
231 
                rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
232 
        ieee80211_rx_irqsafe(dev, skb, &rx_status);
233 
 
234 
        skb = dev_alloc_skb(RTL8187_MAX_RX);
235 
        if (unlikely(!skb)) {
236 
                usb_free_urb(urb);
237 
                /* TODO check rx queue length and refill *somewhere* */
238 
                return;
239 
        }
240 
 
241 
        info = (struct rtl8187_rx_info *)skb->cb;
242 
        info->urb = urb;
243 
        info->dev = dev;
244 
        urb->transfer_buffer = skb_tail_pointer(skb);
245 
        urb->context = skb;
246 
        skb_queue_tail(&priv->rx_queue, skb);
247 
 
248 
        usb_submit_urb(urb, GFP_ATOMIC);
249 
}
250 
 
251 
static int rtl8187_init_urbs(struct ieee80211_hw *dev)
252 
{
253 
        struct rtl8187_priv *priv = dev->priv;
254 
        struct urb *entry;
255 
        struct sk_buff *skb;
256 
        struct rtl8187_rx_info *info;
257 
 
258 
        while (skb_queue_len(&priv->rx_queue) < 8) {
259 
                skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
260 
                if (!skb)
261 
                        break;
262 
                entry = usb_alloc_urb(0, GFP_KERNEL);
263 
                if (!entry) {
264 
                        kfree_skb(skb);
265 
                        break;
266 
                }
267 
                usb_fill_bulk_urb(entry, priv->udev,
268 
                                  usb_rcvbulkpipe(priv->udev, 1),
269 
                                  skb_tail_pointer(skb),
270 
                                  RTL8187_MAX_RX, rtl8187_rx_cb, skb);
271 
                info = (struct rtl8187_rx_info *)skb->cb;
272 
                info->urb = entry;
273 
                info->dev = dev;
274 
                skb_queue_tail(&priv->rx_queue, skb);
275 
                usb_submit_urb(entry, GFP_KERNEL);
276 
        }
277 
 
278 
        return 0;
279 
}
280 
 
281 
static int rtl8187_init_hw(struct ieee80211_hw *dev)
282 
{
283 
        struct rtl8187_priv *priv = dev->priv;
284 
        u8 reg;
285 
        int i;
286 
 
287 
        /* reset */
288 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
289 
        reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
290 
        rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
291 
        rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
292 
        rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
293 
        rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
294 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
295 
 
296 
        rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
297 
 
298 
        msleep(200);
299 
        rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
300 
        rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
301 
        rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
302 
        msleep(200);
303 
 
304 
        reg = rtl818x_ioread8(priv, &priv->map->CMD);
305 
        reg &= (1 << 1);
306 
        reg |= RTL818X_CMD_RESET;
307 
        rtl818x_iowrite8(priv, &priv->map->CMD, reg);
308 
 
309 
        i = 10;
310 
        do {
311 
                msleep(2);
312 
                if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
313 
                      RTL818X_CMD_RESET))
314 
                        break;
315 
        } while (--i);
316 
 
317 
        if (!i) {
318 
                printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
319 
                return -ETIMEDOUT;
320 
        }
321 
 
322 
        /* reload registers from eeprom */
323 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
324 
 
325 
        i = 10;
326 
        do {
327 
                msleep(4);
328 
                if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
329 
                      RTL818X_EEPROM_CMD_CONFIG))
330 
                        break;
331 
        } while (--i);
332 
 
333 
        if (!i) {
334 
                printk(KERN_ERR "%s: eeprom reset timeout!\n",
335 
                       wiphy_name(dev->wiphy));
336 
                return -ETIMEDOUT;
337 
        }
338 
 
339 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
340 
        reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
341 
        rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
342 
        rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
343 
        rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
344 
        rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
345 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
346 
 
347 
        /* setup card */
348 
        rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
349 
        rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
350 
 
351 
        rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
352 
        rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
353 
        rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
354 
 
355 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
356 
 
357 
        rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
358 
        reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
359 
        reg &= 0x3F;
360 
        reg |= 0x80;
361 
        rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
362 
 
363 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
364 
 
365 
        rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
366 
        rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
367 
        rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
368 
 
369 
        // TODO: set RESP_RATE and BRSR properly
370 
        rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
371 
        rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
372 
 
373 
        /* host_usb_init */
374 
        rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
375 
        rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
376 
        reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
377 
        rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
378 
        rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
379 
        rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
380 
        rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
381 
        rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
382 
        rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
383 
        rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
384 
        msleep(100);
385 
 
386 
        rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
387 
        rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
388 
        rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
389 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
390 
        rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
391 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
392 
        rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
393 
        msleep(100);
394 
 
395 
        priv->rf_init(dev);
396 
 
397 
        rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
398 
        reg = rtl818x_ioread16(priv, &priv->map->PGSELECT) & 0xfffe;
399 
        rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg | 0x1);
400 
        rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
401 
        rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
402 
        rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
403 
        rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg);
404 
 
405 
        return 0;
406 
}
407 
 
408 
static void rtl8187_set_channel(struct ieee80211_hw *dev, int channel)
409 
{
410 
        u32 reg;
411 
        struct rtl8187_priv *priv = dev->priv;
412 
 
413 
        reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
414 
        /* Enable TX loopback on MAC level to avoid TX during channel
415 
         * changes, as this has be seen to causes problems and the
416 
         * card will stop work until next reset
417 
         */
418 
        rtl818x_iowrite32(priv, &priv->map->TX_CONF,
419 
                          reg | RTL818X_TX_CONF_LOOPBACK_MAC);
420 
        msleep(10);
421 
        rtl8225_rf_set_channel(dev, channel);
422 
        msleep(10);
423 
        rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
424 
}
425 
 
426 
static int rtl8187_start(struct ieee80211_hw *dev)
427 
{
428 
        struct rtl8187_priv *priv = dev->priv;
429 
        u32 reg;
430 
        int ret;
431 
 
432 
        ret = rtl8187_init_hw(dev);
433 
        if (ret)
434 
                return ret;
435 
 
436 
        rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
437 
 
438 
        rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
439 
        rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
440 
 
441 
        rtl8187_init_urbs(dev);
442 
 
443 
        reg = RTL818X_RX_CONF_ONLYERLPKT |
444 
              RTL818X_RX_CONF_RX_AUTORESETPHY |
445 
              RTL818X_RX_CONF_BSSID |
446 
              RTL818X_RX_CONF_MGMT |
447 
              RTL818X_RX_CONF_DATA |
448 
              (7 << 13 /* RX FIFO threshold NONE */) |
449 
              (7 << 10 /* MAX RX DMA */) |
450 
              RTL818X_RX_CONF_BROADCAST |
451 
              RTL818X_RX_CONF_NICMAC;
452 
 
453 
        priv->rx_conf = reg;
454 
        rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
455 
 
456 
        reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
457 
        reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
458 
        reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
459 
        rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
460 
 
461 
        reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
462 
        reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
463 
        reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
464 
        reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
465 
        rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
466 
 
467 
        reg  = RTL818X_TX_CONF_CW_MIN |
468 
               (7 << 21 /* MAX TX DMA */) |
469 
               RTL818X_TX_CONF_NO_ICV;
470 
        rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
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 
 
477 
        return 0;
478 
}
479 
 
480 
static void rtl8187_stop(struct ieee80211_hw *dev)
481 
{
482 
        struct rtl8187_priv *priv = dev->priv;
483 
        struct rtl8187_rx_info *info;
484 
        struct sk_buff *skb;
485 
        u32 reg;
486 
 
487 
        rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
488 
 
489 
        reg = rtl818x_ioread8(priv, &priv->map->CMD);
490 
        reg &= ~RTL818X_CMD_TX_ENABLE;
491 
        reg &= ~RTL818X_CMD_RX_ENABLE;
492 
        rtl818x_iowrite8(priv, &priv->map->CMD, reg);
493 
 
494 
        rtl8225_rf_stop(dev);
495 
 
496 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
497 
        reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
498 
        rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
499 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
500 
 
501 
        while ((skb = skb_dequeue(&priv->rx_queue))) {
502 
                info = (struct rtl8187_rx_info *)skb->cb;
503 
                usb_kill_urb(info->urb);
504 
                kfree_skb(skb);
505 
        }
506 
        return;
507 
}
508 
 
509 
static int rtl8187_add_interface(struct ieee80211_hw *dev,
510 
                                 struct ieee80211_if_init_conf *conf)
511 
{
512 
        struct rtl8187_priv *priv = dev->priv;
513 
        int i;
514 
 
515 
        if (priv->mode != IEEE80211_IF_TYPE_MNTR)
516 
                return -EOPNOTSUPP;
517 
 
518 
        switch (conf->type) {
519 
        case IEEE80211_IF_TYPE_STA:
520 
                priv->mode = conf->type;
521 
                break;
522 
        default:
523 
                return -EOPNOTSUPP;
524 
        }
525 
 
526 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
527 
        for (i = 0; i < ETH_ALEN; i++)
528 
                rtl818x_iowrite8(priv, &priv->map->MAC[i],
529 
                                 ((u8 *)conf->mac_addr)[i]);
530 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
531 
 
532 
        return 0;
533 
}
534 
 
535 
static void rtl8187_remove_interface(struct ieee80211_hw *dev,
536 
                                     struct ieee80211_if_init_conf *conf)
537 
{
538 
        struct rtl8187_priv *priv = dev->priv;
539 
        priv->mode = IEEE80211_IF_TYPE_MNTR;
540 
}
541 
 
542 
static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
543 
{
544 
        struct rtl8187_priv *priv = dev->priv;
545 
        rtl8187_set_channel(dev, conf->channel);
546 
 
547 
        rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
548 
 
549 
        if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
550 
                rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
551 
                rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
552 
                rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
553 
                rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
554 
        } else {
555 
                rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
556 
                rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
557 
                rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
558 
                rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
559 
        }
560 
 
561 
        rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
562 
        rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
563 
        rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
564 
        rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
565 
        return 0;
566 
}
567 
 
568 
static int rtl8187_config_interface(struct ieee80211_hw *dev, int if_id,
569 
                                    struct ieee80211_if_conf *conf)
570 
{
571 
        struct rtl8187_priv *priv = dev->priv;
572 
        int i;
573 
 
574 
        priv->if_id = if_id;
575 
 
576 
        for (i = 0; i < ETH_ALEN; i++)
577 
                rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
578 
 
579 
        if (is_valid_ether_addr(conf->bssid))
580 
                rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_INFRA);
581 
        else
582 
                rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_NO_LINK);
583 
 
584 
        return 0;
585 
}
586 
 
587 
static void rtl8187_configure_filter(struct ieee80211_hw *dev,
588 
                                     unsigned int changed_flags,
589 
                                     unsigned int *total_flags,
590 
                                     int mc_count, struct dev_addr_list *mclist)
591 
{
592 
        struct rtl8187_priv *priv = dev->priv;
593 
 
594 
        if (changed_flags & FIF_FCSFAIL)
595 
                priv->rx_conf ^= RTL818X_RX_CONF_FCS;
596 
        if (changed_flags & FIF_CONTROL)
597 
                priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
598 
        if (changed_flags & FIF_OTHER_BSS)
599 
                priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
600 
        if (*total_flags & FIF_ALLMULTI || mc_count > 0)
601 
                priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
602 
        else
603 
                priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
604 
 
605 
        *total_flags = 0;
606 
 
607 
        if (priv->rx_conf & RTL818X_RX_CONF_FCS)
608 
                *total_flags |= FIF_FCSFAIL;
609 
        if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
610 
                *total_flags |= FIF_CONTROL;
611 
        if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
612 
                *total_flags |= FIF_OTHER_BSS;
613 
        if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
614 
                *total_flags |= FIF_ALLMULTI;
615 
 
616 
        rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
617 
}
618 
 
619 
static const struct ieee80211_ops rtl8187_ops = {
620 
        .tx                     = rtl8187_tx,
621 
        .start                  = rtl8187_start,
622 
        .stop                   = rtl8187_stop,
623 
        .add_interface          = rtl8187_add_interface,
624 
        .remove_interface       = rtl8187_remove_interface,
625 
        .config                 = rtl8187_config,
626 
        .config_interface       = rtl8187_config_interface,
627 
        .configure_filter       = rtl8187_configure_filter,
628 
};
629 
 
630 
static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
631 
{
632 
        struct ieee80211_hw *dev = eeprom->data;
633 
        struct rtl8187_priv *priv = dev->priv;
634 
        u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
635 
 
636 
        eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
637 
        eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
638 
        eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
639 
        eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
640 
}
641 
 
642 
static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
643 
{
644 
        struct ieee80211_hw *dev = eeprom->data;
645 
        struct rtl8187_priv *priv = dev->priv;
646 
        u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
647 
 
648 
        if (eeprom->reg_data_in)
649 
                reg |= RTL818X_EEPROM_CMD_WRITE;
650 
        if (eeprom->reg_data_out)
651 
                reg |= RTL818X_EEPROM_CMD_READ;
652 
        if (eeprom->reg_data_clock)
653 
                reg |= RTL818X_EEPROM_CMD_CK;
654 
        if (eeprom->reg_chip_select)
655 
                reg |= RTL818X_EEPROM_CMD_CS;
656 
 
657 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
658 
        udelay(10);
659 
}
660 
 
661 
static int __devinit rtl8187_probe(struct usb_interface *intf,
662 
                                   const struct usb_device_id *id)
663 
{
664 
        struct usb_device *udev = interface_to_usbdev(intf);
665 
        struct ieee80211_hw *dev;
666 
        struct rtl8187_priv *priv;
667 
        struct eeprom_93cx6 eeprom;
668 
        struct ieee80211_channel *channel;
669 
        u16 txpwr, reg;
670 
        int err, i;
671 
        DECLARE_MAC_BUF(mac);
672 
 
673 
        dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
674 
        if (!dev) {
675 
                printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
676 
                return -ENOMEM;
677 
        }
678 
 
679 
        priv = dev->priv;
680 
 
681 
        SET_IEEE80211_DEV(dev, &intf->dev);
682 
        usb_set_intfdata(intf, dev);
683 
        priv->udev = udev;
684 
 
685 
        usb_get_dev(udev);
686 
 
687 
        skb_queue_head_init(&priv->rx_queue);
688 
        memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
689 
        memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
690 
        priv->map = (struct rtl818x_csr *)0xFF00;
691 
        priv->modes[0].mode = MODE_IEEE80211G;
692 
        priv->modes[0].num_rates = ARRAY_SIZE(rtl818x_rates);
693 
        priv->modes[0].rates = priv->rates;
694 
        priv->modes[0].num_channels = ARRAY_SIZE(rtl818x_channels);
695 
        priv->modes[0].channels = priv->channels;
696 
        priv->modes[1].mode = MODE_IEEE80211B;
697 
        priv->modes[1].num_rates = 4;
698 
        priv->modes[1].rates = priv->rates;
699 
        priv->modes[1].num_channels = ARRAY_SIZE(rtl818x_channels);
700 
        priv->modes[1].channels = priv->channels;
701 
        priv->mode = IEEE80211_IF_TYPE_MNTR;
702 
        dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
703 
                     IEEE80211_HW_RX_INCLUDES_FCS;
704 
        dev->extra_tx_headroom = sizeof(struct rtl8187_tx_hdr);
705 
        dev->queues = 1;
706 
        dev->max_rssi = 65;
707 
        dev->max_signal = 64;
708 
 
709 
        for (i = 0; i < 2; i++)
710 
                if ((err = ieee80211_register_hwmode(dev, &priv->modes[i])))
711 
                        goto err_free_dev;
712 
 
713 
        eeprom.data = dev;
714 
        eeprom.register_read = rtl8187_eeprom_register_read;
715 
        eeprom.register_write = rtl8187_eeprom_register_write;
716 
        if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
717 
                eeprom.width = PCI_EEPROM_WIDTH_93C66;
718 
        else
719 
                eeprom.width = PCI_EEPROM_WIDTH_93C46;
720 
 
721 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
722 
        udelay(10);
723 
 
724 
        eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
725 
                               (__le16 __force *)dev->wiphy->perm_addr, 3);
726 
        if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
727 
                printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
728 
                       "generated MAC address\n");
729 
                random_ether_addr(dev->wiphy->perm_addr);
730 
        }
731 
 
732 
        channel = priv->channels;
733 
        for (i = 0; i < 3; i++) {
734 
                eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
735 
                                  &txpwr);
736 
                (*channel++).val = txpwr & 0xFF;
737 
                (*channel++).val = txpwr >> 8;
738 
        }
739 
        for (i = 0; i < 2; i++) {
740 
                eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
741 
                                  &txpwr);
742 
                (*channel++).val = txpwr & 0xFF;
743 
                (*channel++).val = txpwr >> 8;
744 
        }
745 
        for (i = 0; i < 2; i++) {
746 
                eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6 + i,
747 
                                  &txpwr);
748 
                (*channel++).val = txpwr & 0xFF;
749 
                (*channel++).val = txpwr >> 8;
750 
        }
751 
 
752 
        eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
753 
                          &priv->txpwr_base);
754 
 
755 
        reg = rtl818x_ioread16(priv, &priv->map->PGSELECT) & ~1;
756 
        rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg | 1);
757 
        /* 0 means asic B-cut, we should use SW 3 wire
758 
         * bit-by-bit banging for radio. 1 means we can use
759 
         * USB specific request to write radio registers */
760 
        priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
761 
        rtl818x_iowrite16(priv, &priv->map->PGSELECT, reg);
762 
        rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
763 
 
764 
        rtl8225_write(dev, 0, 0x1B7);
765 
 
766 
        if (rtl8225_read(dev, 8) != 0x588 || rtl8225_read(dev, 9) != 0x700)
767 
                priv->rf_init = rtl8225_rf_init;
768 
        else
769 
                priv->rf_init = rtl8225z2_rf_init;
770 
 
771 
        rtl8225_write(dev, 0, 0x0B7);
772 
 
773 
        err = ieee80211_register_hw(dev);
774 
        if (err) {
775 
                printk(KERN_ERR "rtl8187: Cannot register device\n");
776 
                goto err_free_dev;
777 
        }
778 
 
779 
        printk(KERN_INFO "%s: hwaddr %s, rtl8187 V%d + %s\n",
780 
               wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
781 
               priv->asic_rev, priv->rf_init == rtl8225_rf_init ?
782 
               "rtl8225" : "rtl8225z2");
783 
 
784 
        return 0;
785 
 
786 
 err_free_dev:
787 
        ieee80211_free_hw(dev);
788 
        usb_set_intfdata(intf, NULL);
789 
        usb_put_dev(udev);
790 
        return err;
791 
}
792 
 
793 
static void __devexit rtl8187_disconnect(struct usb_interface *intf)
794 
{
795 
        struct ieee80211_hw *dev = usb_get_intfdata(intf);
796 
        struct rtl8187_priv *priv;
797 
 
798 
        if (!dev)
799 
                return;
800 
 
801 
        ieee80211_unregister_hw(dev);
802 
 
803 
        priv = dev->priv;
804 
        usb_put_dev(interface_to_usbdev(intf));
805 
        ieee80211_free_hw(dev);
806 
}
807 
 
808 
static struct usb_driver rtl8187_driver = {
809 
        .name           = KBUILD_MODNAME,
810 
        .id_table       = rtl8187_table,
811 
        .probe          = rtl8187_probe,
812 
        .disconnect     = rtl8187_disconnect,
813 
};
814 
 
815 
static int __init rtl8187_init(void)
816 
{
817 
        return usb_register(&rtl8187_driver);
818 
}
819 
 
820 
static void __exit rtl8187_exit(void)
821 
{
822 
        usb_deregister(&rtl8187_driver);
823 
}
824 
 
825 
module_init(rtl8187_init);
826 
module_exit(rtl8187_exit);

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