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proc: use seq_puts()/seq_putc() where possible
[linux-2.6/next.git] / drivers / net / wireless / rtl818x / rtl8180 / dev.c
blob5851cbc1e9577a08758f880d388c69f5c8f1d694
1
2 /*
3 * Linux device driver for RTL8180 / RTL8185
4 *
5 * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
6 * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
7 *
8 * Based on the r8180 driver, which is:
9 * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
10 *
11 * 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/pci.h>
20 #include <linux/slab.h>
21 #include <linux/delay.h>
22 #include <linux/etherdevice.h>
23 #include <linux/eeprom_93cx6.h>
24 #include <net/mac80211.h>
25
26 #include "rtl8180.h"
27 #include "rtl8225.h"
28 #include "sa2400.h"
29 #include "max2820.h"
30 #include "grf5101.h"
31
32 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
33 MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
34 MODULE_DESCRIPTION("RTL8180 / RTL8185 PCI wireless driver");
35 MODULE_LICENSE("GPL");
36
37 static DEFINE_PCI_DEVICE_TABLE(rtl8180_table) = {
38 /* rtl8185 */
39 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8185) },
40 { PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x700f) },
41 { PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x701f) },
42
43 /* rtl8180 */
44 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8180) },
45 { PCI_DEVICE(0x1799, 0x6001) },
46 { PCI_DEVICE(0x1799, 0x6020) },
47 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x3300) },
48 { }
49 };
50
51 MODULE_DEVICE_TABLE(pci, rtl8180_table);
52
53 static const struct ieee80211_rate rtl818x_rates[] = {
54 { .bitrate = 10, .hw_value = 0, },
55 { .bitrate = 20, .hw_value = 1, },
56 { .bitrate = 55, .hw_value = 2, },
57 { .bitrate = 110, .hw_value = 3, },
58 { .bitrate = 60, .hw_value = 4, },
59 { .bitrate = 90, .hw_value = 5, },
60 { .bitrate = 120, .hw_value = 6, },
61 { .bitrate = 180, .hw_value = 7, },
62 { .bitrate = 240, .hw_value = 8, },
63 { .bitrate = 360, .hw_value = 9, },
64 { .bitrate = 480, .hw_value = 10, },
65 { .bitrate = 540, .hw_value = 11, },
66 };
67
68 static const struct ieee80211_channel rtl818x_channels[] = {
69 { .center_freq = 2412 },
70 { .center_freq = 2417 },
71 { .center_freq = 2422 },
72 { .center_freq = 2427 },
73 { .center_freq = 2432 },
74 { .center_freq = 2437 },
75 { .center_freq = 2442 },
76 { .center_freq = 2447 },
77 { .center_freq = 2452 },
78 { .center_freq = 2457 },
79 { .center_freq = 2462 },
80 { .center_freq = 2467 },
81 { .center_freq = 2472 },
82 { .center_freq = 2484 },
83 };
84
85
86 void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
87 {
88 struct rtl8180_priv *priv = dev->priv;
89 int i = 10;
90 u32 buf;
91
92 buf = (data << 8) | addr;
93
94 rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf | 0x80);
95 while (i--) {
96 rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf);
97 if (rtl818x_ioread8(priv, &priv->map->PHY[2]) == (data & 0xFF))
98 return;
99 }
100 }
101
102 static void rtl8180_handle_rx(struct ieee80211_hw *dev)
103 {
104 struct rtl8180_priv *priv = dev->priv;
105 unsigned int count = 32;
106 u8 signal, agc, sq;
107
108 while (count--) {
109 struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx];
110 struct sk_buff *skb = priv->rx_buf[priv->rx_idx];
111 u32 flags = le32_to_cpu(entry->flags);
112
113 if (flags & RTL818X_RX_DESC_FLAG_OWN)
114 return;
115
116 if (unlikely(flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL |
117 RTL818X_RX_DESC_FLAG_FOF |
118 RTL818X_RX_DESC_FLAG_RX_ERR)))
119 goto done;
120 else {
121 u32 flags2 = le32_to_cpu(entry->flags2);
122 struct ieee80211_rx_status rx_status = {0};
123 struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_SIZE);
124
125 if (unlikely(!new_skb))
126 goto done;
127
128 pci_unmap_single(priv->pdev,
129 *((dma_addr_t *)skb->cb),
130 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
131 skb_put(skb, flags & 0xFFF);
132
133 rx_status.antenna = (flags2 >> 15) & 1;
134 rx_status.rate_idx = (flags >> 20) & 0xF;
135 agc = (flags2 >> 17) & 0x7F;
136 if (priv->r8185) {
137 if (rx_status.rate_idx > 3)
138 signal = 90 - clamp_t(u8, agc, 25, 90);
139 else
140 signal = 95 - clamp_t(u8, agc, 30, 95);
141 } else {
142 sq = flags2 & 0xff;
143 signal = priv->rf->calc_rssi(agc, sq);
144 }
145 rx_status.signal = signal;
146 rx_status.freq = dev->conf.channel->center_freq;
147 rx_status.band = dev->conf.channel->band;
148 rx_status.mactime = le64_to_cpu(entry->tsft);
149 rx_status.flag |= RX_FLAG_TSFT;
150 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
151 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
152
153 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
154 ieee80211_rx_irqsafe(dev, skb);
155
156 skb = new_skb;
157 priv->rx_buf[priv->rx_idx] = skb;
158 *((dma_addr_t *) skb->cb) =
159 pci_map_single(priv->pdev, skb_tail_pointer(skb),
160 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
161 }
162
163 done:
164 entry->rx_buf = cpu_to_le32(*((dma_addr_t *)skb->cb));
165 entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
166 MAX_RX_SIZE);
167 if (priv->rx_idx == 31)
168 entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
169 priv->rx_idx = (priv->rx_idx + 1) % 32;
170 }
171 }
172
173 static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio)
174 {
175 struct rtl8180_priv *priv = dev->priv;
176 struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
177
178 while (skb_queue_len(&ring->queue)) {
179 struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
180 struct sk_buff *skb;
181 struct ieee80211_tx_info *info;
182 u32 flags = le32_to_cpu(entry->flags);
183
184 if (flags & RTL818X_TX_DESC_FLAG_OWN)
185 return;
186
187 ring->idx = (ring->idx + 1) % ring->entries;
188 skb = __skb_dequeue(&ring->queue);
189 pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
190 skb->len, PCI_DMA_TODEVICE);
191
192 info = IEEE80211_SKB_CB(skb);
193 ieee80211_tx_info_clear_status(info);
194
195 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
196 (flags & RTL818X_TX_DESC_FLAG_TX_OK))
197 info->flags |= IEEE80211_TX_STAT_ACK;
198
199 info->status.rates[0].count = (flags & 0xFF) + 1;
200 info->status.rates[1].idx = -1;
201
202 ieee80211_tx_status_irqsafe(dev, skb);
203 if (ring->entries - skb_queue_len(&ring->queue) == 2)
204 ieee80211_wake_queue(dev, prio);
205 }
206 }
207
208 static irqreturn_t rtl8180_interrupt(int irq, void *dev_id)
209 {
210 struct ieee80211_hw *dev = dev_id;
211 struct rtl8180_priv *priv = dev->priv;
212 u16 reg;
213
214 spin_lock(&priv->lock);
215 reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS);
216 if (unlikely(reg == 0xFFFF)) {
217 spin_unlock(&priv->lock);
218 return IRQ_HANDLED;
219 }
220
221 rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg);
222
223 if (reg & (RTL818X_INT_TXB_OK | RTL818X_INT_TXB_ERR))
224 rtl8180_handle_tx(dev, 3);
225
226 if (reg & (RTL818X_INT_TXH_OK | RTL818X_INT_TXH_ERR))
227 rtl8180_handle_tx(dev, 2);
228
229 if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR))
230 rtl8180_handle_tx(dev, 1);
231
232 if (reg & (RTL818X_INT_TXL_OK | RTL818X_INT_TXL_ERR))
233 rtl8180_handle_tx(dev, 0);
234
235 if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR))
236 rtl8180_handle_rx(dev);
237
238 spin_unlock(&priv->lock);
239
240 return IRQ_HANDLED;
241 }
242
243 static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
244 {
245 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
246 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
247 struct rtl8180_priv *priv = dev->priv;
248 struct rtl8180_tx_ring *ring;
249 struct rtl8180_tx_desc *entry;
250 unsigned long flags;
251 unsigned int idx, prio;
252 dma_addr_t mapping;
253 u32 tx_flags;
254 u8 rc_flags;
255 u16 plcp_len = 0;
256 __le16 rts_duration = 0;
257
258 prio = skb_get_queue_mapping(skb);
259 ring = &priv->tx_ring[prio];
260
261 mapping = pci_map_single(priv->pdev, skb->data,
262 skb->len, PCI_DMA_TODEVICE);
263
264 tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
265 RTL818X_TX_DESC_FLAG_LS |
266 (ieee80211_get_tx_rate(dev, info)->hw_value << 24) |
267 skb->len;
268
269 if (priv->r8185)
270 tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
271 RTL818X_TX_DESC_FLAG_NO_ENC;
272
273 rc_flags = info->control.rates[0].flags;
274 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
275 tx_flags |= RTL818X_TX_DESC_FLAG_RTS;
276 tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
277 } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
278 tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
279 tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
280 }
281
282 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
283 rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len,
284 info);
285
286 if (!priv->r8185) {
287 unsigned int remainder;
288
289 plcp_len = DIV_ROUND_UP(16 * (skb->len + 4),
290 (ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
291 remainder = (16 * (skb->len + 4)) %
292 ((ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
293 if (remainder <= 6)
294 plcp_len |= 1 << 15;
295 }
296
297 spin_lock_irqsave(&priv->lock, flags);
298
299 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
300 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
301 priv->seqno += 0x10;
302 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
303 hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
304 }
305
306 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
307 entry = &ring->desc[idx];
308
309 entry->rts_duration = rts_duration;
310 entry->plcp_len = cpu_to_le16(plcp_len);
311 entry->tx_buf = cpu_to_le32(mapping);
312 entry->frame_len = cpu_to_le32(skb->len);
313 entry->flags2 = info->control.rates[1].idx >= 0 ?
314 ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0;
315 entry->retry_limit = info->control.rates[0].count;
316 entry->flags = cpu_to_le32(tx_flags);
317 __skb_queue_tail(&ring->queue, skb);
318 if (ring->entries - skb_queue_len(&ring->queue) < 2)
319 ieee80211_stop_queue(dev, prio);
320
321 spin_unlock_irqrestore(&priv->lock, flags);
322
323 rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4)));
324
325 return 0;
326 }
327
328 void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam)
329 {
330 u8 reg;
331
332 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
333 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
334 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
335 reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
336 rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
337 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
338 reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
339 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
340 }
341
342 static int rtl8180_init_hw(struct ieee80211_hw *dev)
343 {
344 struct rtl8180_priv *priv = dev->priv;
345 u16 reg;
346
347 rtl818x_iowrite8(priv, &priv->map->CMD, 0);
348 rtl818x_ioread8(priv, &priv->map->CMD);
349 msleep(10);
350
351 /* reset */
352 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
353 rtl818x_ioread8(priv, &priv->map->CMD);
354
355 reg = rtl818x_ioread8(priv, &priv->map->CMD);
356 reg &= (1 << 1);
357 reg |= RTL818X_CMD_RESET;
358 rtl818x_iowrite8(priv, &priv->map->CMD, RTL818X_CMD_RESET);
359 rtl818x_ioread8(priv, &priv->map->CMD);
360 msleep(200);
361
362 /* check success of reset */
363 if (rtl818x_ioread8(priv, &priv->map->CMD) & RTL818X_CMD_RESET) {
364 wiphy_err(dev->wiphy, "reset timeout!\n");
365 return -ETIMEDOUT;
366 }
367
368 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
369 rtl818x_ioread8(priv, &priv->map->CMD);
370 msleep(200);
371
372 if (rtl818x_ioread8(priv, &priv->map->CONFIG3) & (1 << 3)) {
373 /* For cardbus */
374 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
375 reg |= 1 << 1;
376 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
377 reg = rtl818x_ioread16(priv, &priv->map->FEMR);
378 reg |= (1 << 15) | (1 << 14) | (1 << 4);
379 rtl818x_iowrite16(priv, &priv->map->FEMR, reg);
380 }
381
382 rtl818x_iowrite8(priv, &priv->map->MSR, 0);
383
384 if (!priv->r8185)
385 rtl8180_set_anaparam(priv, priv->anaparam);
386
387 rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
388 rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma);
389 rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma);
390 rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma);
391 rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma);
392
393 /* TODO: necessary? specs indicate not */
394 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
395 reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
396 rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg & ~(1 << 3));
397 if (priv->r8185) {
398 reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
399 rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg | (1 << 4));
400 }
401 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
402
403 /* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */
404
405 /* TODO: turn off hw wep on rtl8180 */
406
407 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
408
409 if (priv->r8185) {
410 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
411 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
412 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
413
414 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
415
416 /* TODO: set ClkRun enable? necessary? */
417 reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE);
418 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6));
419 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
420 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
421 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2));
422 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
423 } else {
424 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x1);
425 rtl818x_iowrite8(priv, &priv->map->SECURITY, 0);
426
427 rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6);
428 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C);
429 }
430
431 priv->rf->init(dev);
432 if (priv->r8185)
433 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
434 return 0;
435 }
436
437 static int rtl8180_init_rx_ring(struct ieee80211_hw *dev)
438 {
439 struct rtl8180_priv *priv = dev->priv;
440 struct rtl8180_rx_desc *entry;
441 int i;
442
443 priv->rx_ring = pci_alloc_consistent(priv->pdev,
444 sizeof(*priv->rx_ring) * 32,
445 &priv->rx_ring_dma);
446
447 if (!priv->rx_ring || (unsigned long)priv->rx_ring & 0xFF) {
448 wiphy_err(dev->wiphy, "Cannot allocate RX ring\n");
449 return -ENOMEM;
450 }
451
452 memset(priv->rx_ring, 0, sizeof(*priv->rx_ring) * 32);
453 priv->rx_idx = 0;
454
455 for (i = 0; i < 32; i++) {
456 struct sk_buff *skb = dev_alloc_skb(MAX_RX_SIZE);
457 dma_addr_t *mapping;
458 entry = &priv->rx_ring[i];
459 if (!skb)
460 return 0;
461
462 priv->rx_buf[i] = skb;
463 mapping = (dma_addr_t *)skb->cb;
464 *mapping = pci_map_single(priv->pdev, skb_tail_pointer(skb),
465 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
466 entry->rx_buf = cpu_to_le32(*mapping);
467 entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
468 MAX_RX_SIZE);
469 }
470 entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
471 return 0;
472 }
473
474 static void rtl8180_free_rx_ring(struct ieee80211_hw *dev)
475 {
476 struct rtl8180_priv *priv = dev->priv;
477 int i;
478
479 for (i = 0; i < 32; i++) {
480 struct sk_buff *skb = priv->rx_buf[i];
481 if (!skb)
482 continue;
483
484 pci_unmap_single(priv->pdev,
485 *((dma_addr_t *)skb->cb),
486 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
487 kfree_skb(skb);
488 }
489
490 pci_free_consistent(priv->pdev, sizeof(*priv->rx_ring) * 32,
491 priv->rx_ring, priv->rx_ring_dma);
492 priv->rx_ring = NULL;
493 }
494
495 static int rtl8180_init_tx_ring(struct ieee80211_hw *dev,
496 unsigned int prio, unsigned int entries)
497 {
498 struct rtl8180_priv *priv = dev->priv;
499 struct rtl8180_tx_desc *ring;
500 dma_addr_t dma;
501 int i;
502
503 ring = pci_alloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
504 if (!ring || (unsigned long)ring & 0xFF) {
505 wiphy_err(dev->wiphy, "Cannot allocate TX ring (prio = %d)\n",
506 prio);
507 return -ENOMEM;
508 }
509
510 memset(ring, 0, sizeof(*ring)*entries);
511 priv->tx_ring[prio].desc = ring;
512 priv->tx_ring[prio].dma = dma;
513 priv->tx_ring[prio].idx = 0;
514 priv->tx_ring[prio].entries = entries;
515 skb_queue_head_init(&priv->tx_ring[prio].queue);
516
517 for (i = 0; i < entries; i++)
518 ring[i].next_tx_desc =
519 cpu_to_le32((u32)dma + ((i + 1) % entries) * sizeof(*ring));
520
521 return 0;
522 }
523
524 static void rtl8180_free_tx_ring(struct ieee80211_hw *dev, unsigned int prio)
525 {
526 struct rtl8180_priv *priv = dev->priv;
527 struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
528
529 while (skb_queue_len(&ring->queue)) {
530 struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
531 struct sk_buff *skb = __skb_dequeue(&ring->queue);
532
533 pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
534 skb->len, PCI_DMA_TODEVICE);
535 kfree_skb(skb);
536 ring->idx = (ring->idx + 1) % ring->entries;
537 }
538
539 pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
540 ring->desc, ring->dma);
541 ring->desc = NULL;
542 }
543
544 static int rtl8180_start(struct ieee80211_hw *dev)
545 {
546 struct rtl8180_priv *priv = dev->priv;
547 int ret, i;
548 u32 reg;
549
550 ret = rtl8180_init_rx_ring(dev);
551 if (ret)
552 return ret;
553
554 for (i = 0; i < 4; i++)
555 if ((ret = rtl8180_init_tx_ring(dev, i, 16)))
556 goto err_free_rings;
557
558 ret = rtl8180_init_hw(dev);
559 if (ret)
560 goto err_free_rings;
561
562 rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
563 rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma);
564 rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma);
565 rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma);
566 rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma);
567
568 ret = request_irq(priv->pdev->irq, rtl8180_interrupt,
569 IRQF_SHARED, KBUILD_MODNAME, dev);
570 if (ret) {
571 wiphy_err(dev->wiphy, "failed to register IRQ handler\n");
572 goto err_free_rings;
573 }
574
575 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
576
577 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
578 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
579
580 reg = RTL818X_RX_CONF_ONLYERLPKT |
581 RTL818X_RX_CONF_RX_AUTORESETPHY |
582 RTL818X_RX_CONF_MGMT |
583 RTL818X_RX_CONF_DATA |
584 (7 << 8 /* MAX RX DMA */) |
585 RTL818X_RX_CONF_BROADCAST |
586 RTL818X_RX_CONF_NICMAC;
587
588 if (priv->r8185)
589 reg |= RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2;
590 else {
591 reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE1)
592 ? RTL818X_RX_CONF_CSDM1 : 0;
593 reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE2)
594 ? RTL818X_RX_CONF_CSDM2 : 0;
595 }
596
597 priv->rx_conf = reg;
598 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
599
600 if (priv->r8185) {
601 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
602 reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
603 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
604 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
605
606 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
607 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
608 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
609 reg |= RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
610 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
611
612 /* disable early TX */
613 rtl818x_iowrite8(priv, (u8 __iomem *)priv->map + 0xec, 0x3f);
614 }
615
616 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
617 reg |= (6 << 21 /* MAX TX DMA */) |
618 RTL818X_TX_CONF_NO_ICV;
619
620 if (priv->r8185)
621 reg &= ~RTL818X_TX_CONF_PROBE_DTS;
622 else
623 reg &= ~RTL818X_TX_CONF_HW_SEQNUM;
624
625 /* different meaning, same value on both rtl8185 and rtl8180 */
626 reg &= ~RTL818X_TX_CONF_SAT_HWPLCP;
627
628 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
629
630 reg = rtl818x_ioread8(priv, &priv->map->CMD);
631 reg |= RTL818X_CMD_RX_ENABLE;
632 reg |= RTL818X_CMD_TX_ENABLE;
633 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
634
635 return 0;
636
637 err_free_rings:
638 rtl8180_free_rx_ring(dev);
639 for (i = 0; i < 4; i++)
640 if (priv->tx_ring[i].desc)
641 rtl8180_free_tx_ring(dev, i);
642
643 return ret;
644 }
645
646 static void rtl8180_stop(struct ieee80211_hw *dev)
647 {
648 struct rtl8180_priv *priv = dev->priv;
649 u8 reg;
650 int i;
651
652 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
653
654 reg = rtl818x_ioread8(priv, &priv->map->CMD);
655 reg &= ~RTL818X_CMD_TX_ENABLE;
656 reg &= ~RTL818X_CMD_RX_ENABLE;
657 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
658
659 priv->rf->stop(dev);
660
661 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
662 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
663 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
664 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
665
666 free_irq(priv->pdev->irq, dev);
667
668 rtl8180_free_rx_ring(dev);
669 for (i = 0; i < 4; i++)
670 rtl8180_free_tx_ring(dev, i);
671 }
672
673 static u64 rtl8180_get_tsf(struct ieee80211_hw *dev)
674 {
675 struct rtl8180_priv *priv = dev->priv;
676
677 return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
678 (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
679 }
680
681 static void rtl8180_beacon_work(struct work_struct *work)
682 {
683 struct rtl8180_vif *vif_priv =
684 container_of(work, struct rtl8180_vif, beacon_work.work);
685 struct ieee80211_vif *vif =
686 container_of((void *)vif_priv, struct ieee80211_vif, drv_priv);
687 struct ieee80211_hw *dev = vif_priv->dev;
688 struct ieee80211_mgmt *mgmt;
689 struct sk_buff *skb;
690 int err = 0;
691
692 /* don't overflow the tx ring */
693 if (ieee80211_queue_stopped(dev, 0))
694 goto resched;
695
696 /* grab a fresh beacon */
697 skb = ieee80211_beacon_get(dev, vif);
698 if (!skb)
699 goto resched;
700
701 /*
702 * update beacon timestamp w/ TSF value
703 * TODO: make hardware update beacon timestamp
704 */
705 mgmt = (struct ieee80211_mgmt *)skb->data;
706 mgmt->u.beacon.timestamp = cpu_to_le64(rtl8180_get_tsf(dev));
707
708 /* TODO: use actual beacon queue */
709 skb_set_queue_mapping(skb, 0);
710
711 err = rtl8180_tx(dev, skb);
712 WARN_ON(err);
713
714 resched:
715 /*
716 * schedule next beacon
717 * TODO: use hardware support for beacon timing
718 */
719 schedule_delayed_work(&vif_priv->beacon_work,
720 usecs_to_jiffies(1024 * vif->bss_conf.beacon_int));
721 }
722
723 static int rtl8180_add_interface(struct ieee80211_hw *dev,
724 struct ieee80211_vif *vif)
725 {
726 struct rtl8180_priv *priv = dev->priv;
727 struct rtl8180_vif *vif_priv;
728
729 /*
730 * We only support one active interface at a time.
731 */
732 if (priv->vif)
733 return -EBUSY;
734
735 switch (vif->type) {
736 case NL80211_IFTYPE_STATION:
737 case NL80211_IFTYPE_ADHOC:
738 break;
739 default:
740 return -EOPNOTSUPP;
741 }
742
743 priv->vif = vif;
744
745 /* Initialize driver private area */
746 vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
747 vif_priv->dev = dev;
748 INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8180_beacon_work);
749 vif_priv->enable_beacon = false;
750
751 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
752 rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->MAC[0],
753 le32_to_cpu(*(__le32 *)vif->addr));
754 rtl818x_iowrite16(priv, (__le16 __iomem *)&priv->map->MAC[4],
755 le16_to_cpu(*(__le16 *)(vif->addr + 4)));
756 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
757
758 return 0;
759 }
760
761 static void rtl8180_remove_interface(struct ieee80211_hw *dev,
762 struct ieee80211_vif *vif)
763 {
764 struct rtl8180_priv *priv = dev->priv;
765 priv->vif = NULL;
766 }
767
768 static int rtl8180_config(struct ieee80211_hw *dev, u32 changed)
769 {
770 struct rtl8180_priv *priv = dev->priv;
771 struct ieee80211_conf *conf = &dev->conf;
772
773 priv->rf->set_chan(dev, conf);
774
775 return 0;
776 }
777
778 static void rtl8180_bss_info_changed(struct ieee80211_hw *dev,
779 struct ieee80211_vif *vif,
780 struct ieee80211_bss_conf *info,
781 u32 changed)
782 {
783 struct rtl8180_priv *priv = dev->priv;
784 struct rtl8180_vif *vif_priv;
785 int i;
786 u8 reg;
787
788 vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
789
790 if (changed & BSS_CHANGED_BSSID) {
791 for (i = 0; i < ETH_ALEN; i++)
792 rtl818x_iowrite8(priv, &priv->map->BSSID[i],
793 info->bssid[i]);
794
795 if (is_valid_ether_addr(info->bssid)) {
796 if (vif->type == NL80211_IFTYPE_ADHOC)
797 reg = RTL818X_MSR_ADHOC;
798 else
799 reg = RTL818X_MSR_INFRA;
800 } else
801 reg = RTL818X_MSR_NO_LINK;
802 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
803 }
804
805 if (changed & BSS_CHANGED_ERP_SLOT && priv->rf->conf_erp)
806 priv->rf->conf_erp(dev, info);
807
808 if (changed & BSS_CHANGED_BEACON_ENABLED)
809 vif_priv->enable_beacon = info->enable_beacon;
810
811 if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) {
812 cancel_delayed_work_sync(&vif_priv->beacon_work);
813 if (vif_priv->enable_beacon)
814 schedule_work(&vif_priv->beacon_work.work);
815 }
816 }
817
818 static u64 rtl8180_prepare_multicast(struct ieee80211_hw *dev,
819 struct netdev_hw_addr_list *mc_list)
820 {
821 return netdev_hw_addr_list_count(mc_list);
822 }
823
824 static void rtl8180_configure_filter(struct ieee80211_hw *dev,
825 unsigned int changed_flags,
826 unsigned int *total_flags,
827 u64 multicast)
828 {
829 struct rtl8180_priv *priv = dev->priv;
830
831 if (changed_flags & FIF_FCSFAIL)
832 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
833 if (changed_flags & FIF_CONTROL)
834 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
835 if (changed_flags & FIF_OTHER_BSS)
836 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
837 if (*total_flags & FIF_ALLMULTI || multicast > 0)
838 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
839 else
840 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
841
842 *total_flags = 0;
843
844 if (priv->rx_conf & RTL818X_RX_CONF_FCS)
845 *total_flags |= FIF_FCSFAIL;
846 if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
847 *total_flags |= FIF_CONTROL;
848 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
849 *total_flags |= FIF_OTHER_BSS;
850 if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
851 *total_flags |= FIF_ALLMULTI;
852
853 rtl818x_iowrite32(priv, &priv->map->RX_CONF, priv->rx_conf);
854 }
855
856 static const struct ieee80211_ops rtl8180_ops = {
857 .tx = rtl8180_tx,
858 .start = rtl8180_start,
859 .stop = rtl8180_stop,
860 .add_interface = rtl8180_add_interface,
861 .remove_interface = rtl8180_remove_interface,
862 .config = rtl8180_config,
863 .bss_info_changed = rtl8180_bss_info_changed,
864 .prepare_multicast = rtl8180_prepare_multicast,
865 .configure_filter = rtl8180_configure_filter,
866 .get_tsf = rtl8180_get_tsf,
867 };
868
869 static void rtl8180_eeprom_register_read(struct eeprom_93cx6 *eeprom)
870 {
871 struct ieee80211_hw *dev = eeprom->data;
872 struct rtl8180_priv *priv = dev->priv;
873 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
874
875 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
876 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
877 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
878 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
879 }
880
881 static void rtl8180_eeprom_register_write(struct eeprom_93cx6 *eeprom)
882 {
883 struct ieee80211_hw *dev = eeprom->data;
884 struct rtl8180_priv *priv = dev->priv;
885 u8 reg = 2 << 6;
886
887 if (eeprom->reg_data_in)
888 reg |= RTL818X_EEPROM_CMD_WRITE;
889 if (eeprom->reg_data_out)
890 reg |= RTL818X_EEPROM_CMD_READ;
891 if (eeprom->reg_data_clock)
892 reg |= RTL818X_EEPROM_CMD_CK;
893 if (eeprom->reg_chip_select)
894 reg |= RTL818X_EEPROM_CMD_CS;
895
896 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
897 rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
898 udelay(10);
899 }
900
901 static int __devinit rtl8180_probe(struct pci_dev *pdev,
902 const struct pci_device_id *id)
903 {
904 struct ieee80211_hw *dev;
905 struct rtl8180_priv *priv;
906 unsigned long mem_addr, mem_len;
907 unsigned int io_addr, io_len;
908 int err, i;
909 struct eeprom_93cx6 eeprom;
910 const char *chip_name, *rf_name = NULL;
911 u32 reg;
912 u16 eeprom_val;
913 u8 mac_addr[ETH_ALEN];
914
915 err = pci_enable_device(pdev);
916 if (err) {
917 printk(KERN_ERR "%s (rtl8180): Cannot enable new PCI device\n",
918 pci_name(pdev));
919 return err;
920 }
921
922 err = pci_request_regions(pdev, KBUILD_MODNAME);
923 if (err) {
924 printk(KERN_ERR "%s (rtl8180): Cannot obtain PCI resources\n",
925 pci_name(pdev));
926 return err;
927 }
928
929 io_addr = pci_resource_start(pdev, 0);
930 io_len = pci_resource_len(pdev, 0);
931 mem_addr = pci_resource_start(pdev, 1);
932 mem_len = pci_resource_len(pdev, 1);
933
934 if (mem_len < sizeof(struct rtl818x_csr) ||
935 io_len < sizeof(struct rtl818x_csr)) {
936 printk(KERN_ERR "%s (rtl8180): Too short PCI resources\n",
937 pci_name(pdev));
938 err = -ENOMEM;
939 goto err_free_reg;
940 }
941
942 if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) ||
943 (err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))) {
944 printk(KERN_ERR "%s (rtl8180): No suitable DMA available\n",
945 pci_name(pdev));
946 goto err_free_reg;
947 }
948
949 pci_set_master(pdev);
950
951 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8180_ops);
952 if (!dev) {
953 printk(KERN_ERR "%s (rtl8180): ieee80211 alloc failed\n",
954 pci_name(pdev));
955 err = -ENOMEM;
956 goto err_free_reg;
957 }
958
959 priv = dev->priv;
960 priv->pdev = pdev;
961
962 dev->max_rates = 2;
963 SET_IEEE80211_DEV(dev, &pdev->dev);
964 pci_set_drvdata(pdev, dev);
965
966 priv->map = pci_iomap(pdev, 1, mem_len);
967 if (!priv->map)
968 priv->map = pci_iomap(pdev, 0, io_len);
969
970 if (!priv->map) {
971 printk(KERN_ERR "%s (rtl8180): Cannot map device memory\n",
972 pci_name(pdev));
973 goto err_free_dev;
974 }
975
976 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
977 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
978
979 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
980 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
981
982 priv->band.band = IEEE80211_BAND_2GHZ;
983 priv->band.channels = priv->channels;
984 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
985 priv->band.bitrates = priv->rates;
986 priv->band.n_bitrates = 4;
987 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
988
989 dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
990 IEEE80211_HW_RX_INCLUDES_FCS |
991 IEEE80211_HW_SIGNAL_UNSPEC;
992 dev->vif_data_size = sizeof(struct rtl8180_vif);
993 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
994 BIT(NL80211_IFTYPE_ADHOC);
995 dev->queues = 1;
996 dev->max_signal = 65;
997
998 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
999 reg &= RTL818X_TX_CONF_HWVER_MASK;
1000 switch (reg) {
1001 case RTL818X_TX_CONF_R8180_ABCD:
1002 chip_name = "RTL8180";
1003 break;
1004 case RTL818X_TX_CONF_R8180_F:
1005 chip_name = "RTL8180vF";
1006 break;
1007 case RTL818X_TX_CONF_R8185_ABC:
1008 chip_name = "RTL8185";
1009 break;
1010 case RTL818X_TX_CONF_R8185_D:
1011 chip_name = "RTL8185vD";
1012 break;
1013 default:
1014 printk(KERN_ERR "%s (rtl8180): Unknown chip! (0x%x)\n",
1015 pci_name(pdev), reg >> 25);
1016 goto err_iounmap;
1017 }
1018
1019 priv->r8185 = reg & RTL818X_TX_CONF_R8185_ABC;
1020 if (priv->r8185) {
1021 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1022 pci_try_set_mwi(pdev);
1023 }
1024
1025 eeprom.data = dev;
1026 eeprom.register_read = rtl8180_eeprom_register_read;
1027 eeprom.register_write = rtl8180_eeprom_register_write;
1028 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1029 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1030 else
1031 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1032
1033 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_PROGRAM);
1034 rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1035 udelay(10);
1036
1037 eeprom_93cx6_read(&eeprom, 0x06, &eeprom_val);
1038 eeprom_val &= 0xFF;
1039 switch (eeprom_val) {
1040 case 1: rf_name = "Intersil";
1041 break;
1042 case 2: rf_name = "RFMD";
1043 break;
1044 case 3: priv->rf = &sa2400_rf_ops;
1045 break;
1046 case 4: priv->rf = &max2820_rf_ops;
1047 break;
1048 case 5: priv->rf = &grf5101_rf_ops;
1049 break;
1050 case 9: priv->rf = rtl8180_detect_rf(dev);
1051 break;
1052 case 10:
1053 rf_name = "RTL8255";
1054 break;
1055 default:
1056 printk(KERN_ERR "%s (rtl8180): Unknown RF! (0x%x)\n",
1057 pci_name(pdev), eeprom_val);
1058 goto err_iounmap;
1059 }
1060
1061 if (!priv->rf) {
1062 printk(KERN_ERR "%s (rtl8180): %s RF frontend not supported!\n",
1063 pci_name(pdev), rf_name);
1064 goto err_iounmap;
1065 }
1066
1067 eeprom_93cx6_read(&eeprom, 0x17, &eeprom_val);
1068 priv->csthreshold = eeprom_val >> 8;
1069 if (!priv->r8185) {
1070 __le32 anaparam;
1071 eeprom_93cx6_multiread(&eeprom, 0xD, (__le16 *)&anaparam, 2);
1072 priv->anaparam = le32_to_cpu(anaparam);
1073 eeprom_93cx6_read(&eeprom, 0x19, &priv->rfparam);
1074 }
1075
1076 eeprom_93cx6_multiread(&eeprom, 0x7, (__le16 *)mac_addr, 3);
1077 if (!is_valid_ether_addr(mac_addr)) {
1078 printk(KERN_WARNING "%s (rtl8180): Invalid hwaddr! Using"
1079 " randomly generated MAC addr\n", pci_name(pdev));
1080 random_ether_addr(mac_addr);
1081 }
1082 SET_IEEE80211_PERM_ADDR(dev, mac_addr);
1083
1084 /* CCK TX power */
1085 for (i = 0; i < 14; i += 2) {
1086 u16 txpwr;
1087 eeprom_93cx6_read(&eeprom, 0x10 + (i >> 1), &txpwr);
1088 priv->channels[i].hw_value = txpwr & 0xFF;
1089 priv->channels[i + 1].hw_value = txpwr >> 8;
1090 }
1091
1092 /* OFDM TX power */
1093 if (priv->r8185) {
1094 for (i = 0; i < 14; i += 2) {
1095 u16 txpwr;
1096 eeprom_93cx6_read(&eeprom, 0x20 + (i >> 1), &txpwr);
1097 priv->channels[i].hw_value |= (txpwr & 0xFF) << 8;
1098 priv->channels[i + 1].hw_value |= txpwr & 0xFF00;
1099 }
1100 }
1101
1102 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1103
1104 spin_lock_init(&priv->lock);
1105
1106 err = ieee80211_register_hw(dev);
1107 if (err) {
1108 printk(KERN_ERR "%s (rtl8180): Cannot register device\n",
1109 pci_name(pdev));
1110 goto err_iounmap;
1111 }
1112
1113 wiphy_info(dev->wiphy, "hwaddr %pm, %s + %s\n",
1114 mac_addr, chip_name, priv->rf->name);
1115
1116 return 0;
1117
1118 err_iounmap:
1119 iounmap(priv->map);
1120
1121 err_free_dev:
1122 pci_set_drvdata(pdev, NULL);
1123 ieee80211_free_hw(dev);
1124
1125 err_free_reg:
1126 pci_release_regions(pdev);
1127 pci_disable_device(pdev);
1128 return err;
1129 }
1130
1131 static void __devexit rtl8180_remove(struct pci_dev *pdev)
1132 {
1133 struct ieee80211_hw *dev = pci_get_drvdata(pdev);
1134 struct rtl8180_priv *priv;
1135
1136 if (!dev)
1137 return;
1138
1139 ieee80211_unregister_hw(dev);
1140
1141 priv = dev->priv;
1142
1143 pci_iounmap(pdev, priv->map);
1144 pci_release_regions(pdev);
1145 pci_disable_device(pdev);
1146 ieee80211_free_hw(dev);
1147 }
1148
1149 #ifdef CONFIG_PM
1150 static int rtl8180_suspend(struct pci_dev *pdev, pm_message_t state)
1151 {
1152 pci_save_state(pdev);
1153 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1154 return 0;
1155 }
1156
1157 static int rtl8180_resume(struct pci_dev *pdev)
1158 {
1159 pci_set_power_state(pdev, PCI_D0);
1160 pci_restore_state(pdev);
1161 return 0;
1162 }
1163
1164 #endif /* CONFIG_PM */
1165
1166 static struct pci_driver rtl8180_driver = {
1167 .name = KBUILD_MODNAME,
1168 .id_table = rtl8180_table,
1169 .probe = rtl8180_probe,
1170 .remove = __devexit_p(rtl8180_remove),
1171 #ifdef CONFIG_PM
1172 .suspend = rtl8180_suspend,
1173 .resume = rtl8180_resume,
1174 #endif /* CONFIG_PM */
1175 };
1176
1177 static int __init rtl8180_init(void)
1178 {
1179 return pci_register_driver(&rtl8180_driver);
1180 }
1181
1182 static void __exit rtl8180_exit(void)
1183 {
1184 pci_unregister_driver(&rtl8180_driver);
1185 }
1186
1187 module_init(rtl8180_init);
1188 module_exit(rtl8180_exit);
linux-next