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Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
[deliverable/linux.git] / drivers / net / wireless / rtl818x / rtl8180 / dev.c
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/interrupt.h>
20 #include <linux/pci.h>
21 #include <linux/slab.h>
22 #include <linux/delay.h>
23 #include <linux/etherdevice.h>
24 #include <linux/eeprom_93cx6.h>
25 #include <linux/module.h>
26 #include <net/mac80211.h>
27
28 #include "rtl8180.h"
29 #include "rtl8225.h"
30 #include "sa2400.h"
31 #include "max2820.h"
32 #include "grf5101.h"
33
34 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
35 MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
36 MODULE_DESCRIPTION("RTL8180 / RTL8185 PCI wireless driver");
37 MODULE_LICENSE("GPL");
38
39 static DEFINE_PCI_DEVICE_TABLE(rtl8180_table) = {
40 /* rtl8185 */
41 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8185) },
42 { PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x700f) },
43 { PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x701f) },
44
45 /* rtl8180 */
46 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8180) },
47 { PCI_DEVICE(0x1799, 0x6001) },
48 { PCI_DEVICE(0x1799, 0x6020) },
49 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x3300) },
50 { }
51 };
52
53 MODULE_DEVICE_TABLE(pci, rtl8180_table);
54
55 static const struct ieee80211_rate rtl818x_rates[] = {
56 { .bitrate = 10, .hw_value = 0, },
57 { .bitrate = 20, .hw_value = 1, },
58 { .bitrate = 55, .hw_value = 2, },
59 { .bitrate = 110, .hw_value = 3, },
60 { .bitrate = 60, .hw_value = 4, },
61 { .bitrate = 90, .hw_value = 5, },
62 { .bitrate = 120, .hw_value = 6, },
63 { .bitrate = 180, .hw_value = 7, },
64 { .bitrate = 240, .hw_value = 8, },
65 { .bitrate = 360, .hw_value = 9, },
66 { .bitrate = 480, .hw_value = 10, },
67 { .bitrate = 540, .hw_value = 11, },
68 };
69
70 static const struct ieee80211_channel rtl818x_channels[] = {
71 { .center_freq = 2412 },
72 { .center_freq = 2417 },
73 { .center_freq = 2422 },
74 { .center_freq = 2427 },
75 { .center_freq = 2432 },
76 { .center_freq = 2437 },
77 { .center_freq = 2442 },
78 { .center_freq = 2447 },
79 { .center_freq = 2452 },
80 { .center_freq = 2457 },
81 { .center_freq = 2462 },
82 { .center_freq = 2467 },
83 { .center_freq = 2472 },
84 { .center_freq = 2484 },
85 };
86
87
88 void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
89 {
90 struct rtl8180_priv *priv = dev->priv;
91 int i = 10;
92 u32 buf;
93
94 buf = (data << 8) | addr;
95
96 rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf | 0x80);
97 while (i--) {
98 rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf);
99 if (rtl818x_ioread8(priv, &priv->map->PHY[2]) == (data & 0xFF))
100 return;
101 }
102 }
103
104 static void rtl8180_handle_rx(struct ieee80211_hw *dev)
105 {
106 struct rtl8180_priv *priv = dev->priv;
107 unsigned int count = 32;
108 u8 signal, agc, sq;
109
110 while (count--) {
111 struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx];
112 struct sk_buff *skb = priv->rx_buf[priv->rx_idx];
113 u32 flags = le32_to_cpu(entry->flags);
114
115 if (flags & RTL818X_RX_DESC_FLAG_OWN)
116 return;
117
118 if (unlikely(flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL |
119 RTL818X_RX_DESC_FLAG_FOF |
120 RTL818X_RX_DESC_FLAG_RX_ERR)))
121 goto done;
122 else {
123 u32 flags2 = le32_to_cpu(entry->flags2);
124 struct ieee80211_rx_status rx_status = {0};
125 struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_SIZE);
126
127 if (unlikely(!new_skb))
128 goto done;
129
130 pci_unmap_single(priv->pdev,
131 *((dma_addr_t *)skb->cb),
132 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
133 skb_put(skb, flags & 0xFFF);
134
135 rx_status.antenna = (flags2 >> 15) & 1;
136 rx_status.rate_idx = (flags >> 20) & 0xF;
137 agc = (flags2 >> 17) & 0x7F;
138 if (priv->r8185) {
139 if (rx_status.rate_idx > 3)
140 signal = 90 - clamp_t(u8, agc, 25, 90);
141 else
142 signal = 95 - clamp_t(u8, agc, 30, 95);
143 } else {
144 sq = flags2 & 0xff;
145 signal = priv->rf->calc_rssi(agc, sq);
146 }
147 rx_status.signal = signal;
148 rx_status.freq = dev->conf.channel->center_freq;
149 rx_status.band = dev->conf.channel->band;
150 rx_status.mactime = le64_to_cpu(entry->tsft);
151 rx_status.flag |= RX_FLAG_MACTIME_MPDU;
152 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
153 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
154
155 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
156 ieee80211_rx_irqsafe(dev, skb);
157
158 skb = new_skb;
159 priv->rx_buf[priv->rx_idx] = skb;
160 *((dma_addr_t *) skb->cb) =
161 pci_map_single(priv->pdev, skb_tail_pointer(skb),
162 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
163 }
164
165 done:
166 entry->rx_buf = cpu_to_le32(*((dma_addr_t *)skb->cb));
167 entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
168 MAX_RX_SIZE);
169 if (priv->rx_idx == 31)
170 entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
171 priv->rx_idx = (priv->rx_idx + 1) % 32;
172 }
173 }
174
175 static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio)
176 {
177 struct rtl8180_priv *priv = dev->priv;
178 struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
179
180 while (skb_queue_len(&ring->queue)) {
181 struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
182 struct sk_buff *skb;
183 struct ieee80211_tx_info *info;
184 u32 flags = le32_to_cpu(entry->flags);
185
186 if (flags & RTL818X_TX_DESC_FLAG_OWN)
187 return;
188
189 ring->idx = (ring->idx + 1) % ring->entries;
190 skb = __skb_dequeue(&ring->queue);
191 pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
192 skb->len, PCI_DMA_TODEVICE);
193
194 info = IEEE80211_SKB_CB(skb);
195 ieee80211_tx_info_clear_status(info);
196
197 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
198 (flags & RTL818X_TX_DESC_FLAG_TX_OK))
199 info->flags |= IEEE80211_TX_STAT_ACK;
200
201 info->status.rates[0].count = (flags & 0xFF) + 1;
202 info->status.rates[1].idx = -1;
203
204 ieee80211_tx_status_irqsafe(dev, skb);
205 if (ring->entries - skb_queue_len(&ring->queue) == 2)
206 ieee80211_wake_queue(dev, prio);
207 }
208 }
209
210 static irqreturn_t rtl8180_interrupt(int irq, void *dev_id)
211 {
212 struct ieee80211_hw *dev = dev_id;
213 struct rtl8180_priv *priv = dev->priv;
214 u16 reg;
215
216 spin_lock(&priv->lock);
217 reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS);
218 if (unlikely(reg == 0xFFFF)) {
219 spin_unlock(&priv->lock);
220 return IRQ_HANDLED;
221 }
222
223 rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg);
224
225 if (reg & (RTL818X_INT_TXB_OK | RTL818X_INT_TXB_ERR))
226 rtl8180_handle_tx(dev, 3);
227
228 if (reg & (RTL818X_INT_TXH_OK | RTL818X_INT_TXH_ERR))
229 rtl8180_handle_tx(dev, 2);
230
231 if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR))
232 rtl8180_handle_tx(dev, 1);
233
234 if (reg & (RTL818X_INT_TXL_OK | RTL818X_INT_TXL_ERR))
235 rtl8180_handle_tx(dev, 0);
236
237 if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR))
238 rtl8180_handle_rx(dev);
239
240 spin_unlock(&priv->lock);
241
242 return IRQ_HANDLED;
243 }
244
245 static void rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
246 {
247 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
248 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
249 struct rtl8180_priv *priv = dev->priv;
250 struct rtl8180_tx_ring *ring;
251 struct rtl8180_tx_desc *entry;
252 unsigned long flags;
253 unsigned int idx, prio;
254 dma_addr_t mapping;
255 u32 tx_flags;
256 u8 rc_flags;
257 u16 plcp_len = 0;
258 __le16 rts_duration = 0;
259
260 prio = skb_get_queue_mapping(skb);
261 ring = &priv->tx_ring[prio];
262
263 mapping = pci_map_single(priv->pdev, skb->data,
264 skb->len, PCI_DMA_TODEVICE);
265
266 tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
267 RTL818X_TX_DESC_FLAG_LS |
268 (ieee80211_get_tx_rate(dev, info)->hw_value << 24) |
269 skb->len;
270
271 if (priv->r8185)
272 tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
273 RTL818X_TX_DESC_FLAG_NO_ENC;
274
275 rc_flags = info->control.rates[0].flags;
276 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
277 tx_flags |= RTL818X_TX_DESC_FLAG_RTS;
278 tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
279 } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
280 tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
281 tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
282 }
283
284 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
285 rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len,
286 info);
287
288 if (!priv->r8185) {
289 unsigned int remainder;
290
291 plcp_len = DIV_ROUND_UP(16 * (skb->len + 4),
292 (ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
293 remainder = (16 * (skb->len + 4)) %
294 ((ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
295 if (remainder <= 6)
296 plcp_len |= 1 << 15;
297 }
298
299 spin_lock_irqsave(&priv->lock, flags);
300
301 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
302 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
303 priv->seqno += 0x10;
304 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
305 hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
306 }
307
308 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
309 entry = &ring->desc[idx];
310
311 entry->rts_duration = rts_duration;
312 entry->plcp_len = cpu_to_le16(plcp_len);
313 entry->tx_buf = cpu_to_le32(mapping);
314 entry->frame_len = cpu_to_le32(skb->len);
315 entry->flags2 = info->control.rates[1].idx >= 0 ?
316 ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0;
317 entry->retry_limit = info->control.rates[0].count;
318 entry->flags = cpu_to_le32(tx_flags);
319 __skb_queue_tail(&ring->queue, skb);
320 if (ring->entries - skb_queue_len(&ring->queue) < 2)
321 ieee80211_stop_queue(dev, prio);
322
323 spin_unlock_irqrestore(&priv->lock, flags);
324
325 rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4)));
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 struct ieee80211_vif *vif)
675 {
676 struct rtl8180_priv *priv = dev->priv;
677
678 return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
679 (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
680 }
681
682 static void rtl8180_beacon_work(struct work_struct *work)
683 {
684 struct rtl8180_vif *vif_priv =
685 container_of(work, struct rtl8180_vif, beacon_work.work);
686 struct ieee80211_vif *vif =
687 container_of((void *)vif_priv, struct ieee80211_vif, drv_priv);
688 struct ieee80211_hw *dev = vif_priv->dev;
689 struct ieee80211_mgmt *mgmt;
690 struct sk_buff *skb;
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, vif));
707
708 /* TODO: use actual beacon queue */
709 skb_set_queue_mapping(skb, 0);
710
711 rtl8180_tx(dev, skb);
712
713 resched:
714 /*
715 * schedule next beacon
716 * TODO: use hardware support for beacon timing
717 */
718 schedule_delayed_work(&vif_priv->beacon_work,
719 usecs_to_jiffies(1024 * vif->bss_conf.beacon_int));
720 }
721
722 static int rtl8180_add_interface(struct ieee80211_hw *dev,
723 struct ieee80211_vif *vif)
724 {
725 struct rtl8180_priv *priv = dev->priv;
726 struct rtl8180_vif *vif_priv;
727
728 /*
729 * We only support one active interface at a time.
730 */
731 if (priv->vif)
732 return -EBUSY;
733
734 switch (vif->type) {
735 case NL80211_IFTYPE_STATION:
736 case NL80211_IFTYPE_ADHOC:
737 break;
738 default:
739 return -EOPNOTSUPP;
740 }
741
742 priv->vif = vif;
743
744 /* Initialize driver private area */
745 vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
746 vif_priv->dev = dev;
747 INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8180_beacon_work);
748 vif_priv->enable_beacon = false;
749
750 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
751 rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->MAC[0],
752 le32_to_cpu(*(__le32 *)vif->addr));
753 rtl818x_iowrite16(priv, (__le16 __iomem *)&priv->map->MAC[4],
754 le16_to_cpu(*(__le16 *)(vif->addr + 4)));
755 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
756
757 return 0;
758 }
759
760 static void rtl8180_remove_interface(struct ieee80211_hw *dev,
761 struct ieee80211_vif *vif)
762 {
763 struct rtl8180_priv *priv = dev->priv;
764 priv->vif = NULL;
765 }
766
767 static int rtl8180_config(struct ieee80211_hw *dev, u32 changed)
768 {
769 struct rtl8180_priv *priv = dev->priv;
770 struct ieee80211_conf *conf = &dev->conf;
771
772 priv->rf->set_chan(dev, conf);
773
774 return 0;
775 }
776
777 static void rtl8180_bss_info_changed(struct ieee80211_hw *dev,
778 struct ieee80211_vif *vif,
779 struct ieee80211_bss_conf *info,
780 u32 changed)
781 {
782 struct rtl8180_priv *priv = dev->priv;
783 struct rtl8180_vif *vif_priv;
784 int i;
785 u8 reg;
786
787 vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
788
789 if (changed & BSS_CHANGED_BSSID) {
790 for (i = 0; i < ETH_ALEN; i++)
791 rtl818x_iowrite8(priv, &priv->map->BSSID[i],
792 info->bssid[i]);
793
794 if (is_valid_ether_addr(info->bssid)) {
795 if (vif->type == NL80211_IFTYPE_ADHOC)
796 reg = RTL818X_MSR_ADHOC;
797 else
798 reg = RTL818X_MSR_INFRA;
799 } else
800 reg = RTL818X_MSR_NO_LINK;
801 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
802 }
803
804 if (changed & BSS_CHANGED_ERP_SLOT && priv->rf->conf_erp)
805 priv->rf->conf_erp(dev, info);
806
807 if (changed & BSS_CHANGED_BEACON_ENABLED)
808 vif_priv->enable_beacon = info->enable_beacon;
809
810 if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) {
811 cancel_delayed_work_sync(&vif_priv->beacon_work);
812 if (vif_priv->enable_beacon)
813 schedule_work(&vif_priv->beacon_work.work);
814 }
815 }
816
817 static u64 rtl8180_prepare_multicast(struct ieee80211_hw *dev,
818 struct netdev_hw_addr_list *mc_list)
819 {
820 return netdev_hw_addr_list_count(mc_list);
821 }
822
823 static void rtl8180_configure_filter(struct ieee80211_hw *dev,
824 unsigned int changed_flags,
825 unsigned int *total_flags,
826 u64 multicast)
827 {
828 struct rtl8180_priv *priv = dev->priv;
829
830 if (changed_flags & FIF_FCSFAIL)
831 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
832 if (changed_flags & FIF_CONTROL)
833 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
834 if (changed_flags & FIF_OTHER_BSS)
835 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
836 if (*total_flags & FIF_ALLMULTI || multicast > 0)
837 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
838 else
839 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
840
841 *total_flags = 0;
842
843 if (priv->rx_conf & RTL818X_RX_CONF_FCS)
844 *total_flags |= FIF_FCSFAIL;
845 if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
846 *total_flags |= FIF_CONTROL;
847 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
848 *total_flags |= FIF_OTHER_BSS;
849 if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
850 *total_flags |= FIF_ALLMULTI;
851
852 rtl818x_iowrite32(priv, &priv->map->RX_CONF, priv->rx_conf);
853 }
854
855 static const struct ieee80211_ops rtl8180_ops = {
856 .tx = rtl8180_tx,
857 .start = rtl8180_start,
858 .stop = rtl8180_stop,
859 .add_interface = rtl8180_add_interface,
860 .remove_interface = rtl8180_remove_interface,
861 .config = rtl8180_config,
862 .bss_info_changed = rtl8180_bss_info_changed,
863 .prepare_multicast = rtl8180_prepare_multicast,
864 .configure_filter = rtl8180_configure_filter,
865 .get_tsf = rtl8180_get_tsf,
866 };
867
868 static void rtl8180_eeprom_register_read(struct eeprom_93cx6 *eeprom)
869 {
870 struct ieee80211_hw *dev = eeprom->data;
871 struct rtl8180_priv *priv = dev->priv;
872 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
873
874 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
875 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
876 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
877 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
878 }
879
880 static void rtl8180_eeprom_register_write(struct eeprom_93cx6 *eeprom)
881 {
882 struct ieee80211_hw *dev = eeprom->data;
883 struct rtl8180_priv *priv = dev->priv;
884 u8 reg = 2 << 6;
885
886 if (eeprom->reg_data_in)
887 reg |= RTL818X_EEPROM_CMD_WRITE;
888 if (eeprom->reg_data_out)
889 reg |= RTL818X_EEPROM_CMD_READ;
890 if (eeprom->reg_data_clock)
891 reg |= RTL818X_EEPROM_CMD_CK;
892 if (eeprom->reg_chip_select)
893 reg |= RTL818X_EEPROM_CMD_CS;
894
895 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
896 rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
897 udelay(10);
898 }
899
900 static int __devinit rtl8180_probe(struct pci_dev *pdev,
901 const struct pci_device_id *id)
902 {
903 struct ieee80211_hw *dev;
904 struct rtl8180_priv *priv;
905 unsigned long mem_addr, mem_len;
906 unsigned int io_addr, io_len;
907 int err, i;
908 struct eeprom_93cx6 eeprom;
909 const char *chip_name, *rf_name = NULL;
910 u32 reg;
911 u16 eeprom_val;
912 u8 mac_addr[ETH_ALEN];
913
914 err = pci_enable_device(pdev);
915 if (err) {
916 printk(KERN_ERR "%s (rtl8180): Cannot enable new PCI device\n",
917 pci_name(pdev));
918 return err;
919 }
920
921 err = pci_request_regions(pdev, KBUILD_MODNAME);
922 if (err) {
923 printk(KERN_ERR "%s (rtl8180): Cannot obtain PCI resources\n",
924 pci_name(pdev));
925 return err;
926 }
927
928 io_addr = pci_resource_start(pdev, 0);
929 io_len = pci_resource_len(pdev, 0);
930 mem_addr = pci_resource_start(pdev, 1);
931 mem_len = pci_resource_len(pdev, 1);
932
933 if (mem_len < sizeof(struct rtl818x_csr) ||
934 io_len < sizeof(struct rtl818x_csr)) {
935 printk(KERN_ERR "%s (rtl8180): Too short PCI resources\n",
936 pci_name(pdev));
937 err = -ENOMEM;
938 goto err_free_reg;
939 }
940
941 if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) ||
942 (err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))) {
943 printk(KERN_ERR "%s (rtl8180): No suitable DMA available\n",
944 pci_name(pdev));
945 goto err_free_reg;
946 }
947
948 pci_set_master(pdev);
949
950 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8180_ops);
951 if (!dev) {
952 printk(KERN_ERR "%s (rtl8180): ieee80211 alloc failed\n",
953 pci_name(pdev));
954 err = -ENOMEM;
955 goto err_free_reg;
956 }
957
958 priv = dev->priv;
959 priv->pdev = pdev;
960
961 dev->max_rates = 2;
962 SET_IEEE80211_DEV(dev, &pdev->dev);
963 pci_set_drvdata(pdev, dev);
964
965 priv->map = pci_iomap(pdev, 1, mem_len);
966 if (!priv->map)
967 priv->map = pci_iomap(pdev, 0, io_len);
968
969 if (!priv->map) {
970 printk(KERN_ERR "%s (rtl8180): Cannot map device memory\n",
971 pci_name(pdev));
972 goto err_free_dev;
973 }
974
975 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
976 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
977
978 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
979 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
980
981 priv->band.band = IEEE80211_BAND_2GHZ;
982 priv->band.channels = priv->channels;
983 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
984 priv->band.bitrates = priv->rates;
985 priv->band.n_bitrates = 4;
986 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
987
988 dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
989 IEEE80211_HW_RX_INCLUDES_FCS |
990 IEEE80211_HW_SIGNAL_UNSPEC;
991 dev->vif_data_size = sizeof(struct rtl8180_vif);
992 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
993 BIT(NL80211_IFTYPE_ADHOC);
994 dev->queues = 1;
995 dev->max_signal = 65;
996
997 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
998 reg &= RTL818X_TX_CONF_HWVER_MASK;
999 switch (reg) {
1000 case RTL818X_TX_CONF_R8180_ABCD:
1001 chip_name = "RTL8180";
1002 break;
1003 case RTL818X_TX_CONF_R8180_F:
1004 chip_name = "RTL8180vF";
1005 break;
1006 case RTL818X_TX_CONF_R8185_ABC:
1007 chip_name = "RTL8185";
1008 break;
1009 case RTL818X_TX_CONF_R8185_D:
1010 chip_name = "RTL8185vD";
1011 break;
1012 default:
1013 printk(KERN_ERR "%s (rtl8180): Unknown chip! (0x%x)\n",
1014 pci_name(pdev), reg >> 25);
1015 goto err_iounmap;
1016 }
1017
1018 priv->r8185 = reg & RTL818X_TX_CONF_R8185_ABC;
1019 if (priv->r8185) {
1020 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1021 pci_try_set_mwi(pdev);
1022 }
1023
1024 eeprom.data = dev;
1025 eeprom.register_read = rtl8180_eeprom_register_read;
1026 eeprom.register_write = rtl8180_eeprom_register_write;
1027 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1028 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1029 else
1030 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1031
1032 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_PROGRAM);
1033 rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1034 udelay(10);
1035
1036 eeprom_93cx6_read(&eeprom, 0x06, &eeprom_val);
1037 eeprom_val &= 0xFF;
1038 switch (eeprom_val) {
1039 case 1: rf_name = "Intersil";
1040 break;
1041 case 2: rf_name = "RFMD";
1042 break;
1043 case 3: priv->rf = &sa2400_rf_ops;
1044 break;
1045 case 4: priv->rf = &max2820_rf_ops;
1046 break;
1047 case 5: priv->rf = &grf5101_rf_ops;
1048 break;
1049 case 9: priv->rf = rtl8180_detect_rf(dev);
1050 break;
1051 case 10:
1052 rf_name = "RTL8255";
1053 break;
1054 default:
1055 printk(KERN_ERR "%s (rtl8180): Unknown RF! (0x%x)\n",
1056 pci_name(pdev), eeprom_val);
1057 goto err_iounmap;
1058 }
1059
1060 if (!priv->rf) {
1061 printk(KERN_ERR "%s (rtl8180): %s RF frontend not supported!\n",
1062 pci_name(pdev), rf_name);
1063 goto err_iounmap;
1064 }
1065
1066 eeprom_93cx6_read(&eeprom, 0x17, &eeprom_val);
1067 priv->csthreshold = eeprom_val >> 8;
1068 if (!priv->r8185) {
1069 __le32 anaparam;
1070 eeprom_93cx6_multiread(&eeprom, 0xD, (__le16 *)&anaparam, 2);
1071 priv->anaparam = le32_to_cpu(anaparam);
1072 eeprom_93cx6_read(&eeprom, 0x19, &priv->rfparam);
1073 }
1074
1075 eeprom_93cx6_multiread(&eeprom, 0x7, (__le16 *)mac_addr, 3);
1076 if (!is_valid_ether_addr(mac_addr)) {
1077 printk(KERN_WARNING "%s (rtl8180): Invalid hwaddr! Using"
1078 " randomly generated MAC addr\n", pci_name(pdev));
1079 random_ether_addr(mac_addr);
1080 }
1081 SET_IEEE80211_PERM_ADDR(dev, mac_addr);
1082
1083 /* CCK TX power */
1084 for (i = 0; i < 14; i += 2) {
1085 u16 txpwr;
1086 eeprom_93cx6_read(&eeprom, 0x10 + (i >> 1), &txpwr);
1087 priv->channels[i].hw_value = txpwr & 0xFF;
1088 priv->channels[i + 1].hw_value = txpwr >> 8;
1089 }
1090
1091 /* OFDM TX power */
1092 if (priv->r8185) {
1093 for (i = 0; i < 14; i += 2) {
1094 u16 txpwr;
1095 eeprom_93cx6_read(&eeprom, 0x20 + (i >> 1), &txpwr);
1096 priv->channels[i].hw_value |= (txpwr & 0xFF) << 8;
1097 priv->channels[i + 1].hw_value |= txpwr & 0xFF00;
1098 }
1099 }
1100
1101 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1102
1103 spin_lock_init(&priv->lock);
1104
1105 err = ieee80211_register_hw(dev);
1106 if (err) {
1107 printk(KERN_ERR "%s (rtl8180): Cannot register device\n",
1108 pci_name(pdev));
1109 goto err_iounmap;
1110 }
1111
1112 wiphy_info(dev->wiphy, "hwaddr %pm, %s + %s\n",
1113 mac_addr, chip_name, priv->rf->name);
1114
1115 return 0;
1116
1117 err_iounmap:
1118 iounmap(priv->map);
1119
1120 err_free_dev:
1121 pci_set_drvdata(pdev, NULL);
1122 ieee80211_free_hw(dev);
1123
1124 err_free_reg:
1125 pci_release_regions(pdev);
1126 pci_disable_device(pdev);
1127 return err;
1128 }
1129
1130 static void __devexit rtl8180_remove(struct pci_dev *pdev)
1131 {
1132 struct ieee80211_hw *dev = pci_get_drvdata(pdev);
1133 struct rtl8180_priv *priv;
1134
1135 if (!dev)
1136 return;
1137
1138 ieee80211_unregister_hw(dev);
1139
1140 priv = dev->priv;
1141
1142 pci_iounmap(pdev, priv->map);
1143 pci_release_regions(pdev);
1144 pci_disable_device(pdev);
1145 ieee80211_free_hw(dev);
1146 }
1147
1148 #ifdef CONFIG_PM
1149 static int rtl8180_suspend(struct pci_dev *pdev, pm_message_t state)
1150 {
1151 pci_save_state(pdev);
1152 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1153 return 0;
1154 }
1155
1156 static int rtl8180_resume(struct pci_dev *pdev)
1157 {
1158 pci_set_power_state(pdev, PCI_D0);
1159 pci_restore_state(pdev);
1160 return 0;
1161 }
1162
1163 #endif /* CONFIG_PM */
1164
1165 static struct pci_driver rtl8180_driver = {
1166 .name = KBUILD_MODNAME,
1167 .id_table = rtl8180_table,
1168 .probe = rtl8180_probe,
1169 .remove = __devexit_p(rtl8180_remove),
1170 #ifdef CONFIG_PM
1171 .suspend = rtl8180_suspend,
1172 .resume = rtl8180_resume,
1173 #endif /* CONFIG_PM */
1174 };
1175
1176 static int __init rtl8180_init(void)
1177 {
1178 return pci_register_driver(&rtl8180_driver);
1179 }
1180
1181 static void __exit rtl8180_exit(void)
1182 {
1183 pci_unregister_driver(&rtl8180_driver);
1184 }
1185
1186 module_init(rtl8180_init);
1187 module_exit(rtl8180_exit);
Linux kernel - Deliverables
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