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 { PCI_DEVICE(0x1186, 0x3301) },
51 { PCI_DEVICE(0x1432, 0x7106) },
52 { }
53 };
54
55 MODULE_DEVICE_TABLE(pci, rtl8180_table);
56
57 static const struct ieee80211_rate rtl818x_rates[] = {
58 { .bitrate = 10, .hw_value = 0, },
59 { .bitrate = 20, .hw_value = 1, },
60 { .bitrate = 55, .hw_value = 2, },
61 { .bitrate = 110, .hw_value = 3, },
62 { .bitrate = 60, .hw_value = 4, },
63 { .bitrate = 90, .hw_value = 5, },
64 { .bitrate = 120, .hw_value = 6, },
65 { .bitrate = 180, .hw_value = 7, },
66 { .bitrate = 240, .hw_value = 8, },
67 { .bitrate = 360, .hw_value = 9, },
68 { .bitrate = 480, .hw_value = 10, },
69 { .bitrate = 540, .hw_value = 11, },
70 };
71
72 static const struct ieee80211_channel rtl818x_channels[] = {
73 { .center_freq = 2412 },
74 { .center_freq = 2417 },
75 { .center_freq = 2422 },
76 { .center_freq = 2427 },
77 { .center_freq = 2432 },
78 { .center_freq = 2437 },
79 { .center_freq = 2442 },
80 { .center_freq = 2447 },
81 { .center_freq = 2452 },
82 { .center_freq = 2457 },
83 { .center_freq = 2462 },
84 { .center_freq = 2467 },
85 { .center_freq = 2472 },
86 { .center_freq = 2484 },
87 };
88
89
rtl8180_write_phy(struct ieee80211_hw * dev,u8 addr,u32 data)90 void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
91 {
92 struct rtl8180_priv *priv = dev->priv;
93 int i = 10;
94 u32 buf;
95
96 buf = (data << 8) | addr;
97
98 rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf | 0x80);
99 while (i--) {
100 rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf);
101 if (rtl818x_ioread8(priv, &priv->map->PHY[2]) == (data & 0xFF))
102 return;
103 }
104 }
105
rtl8180_handle_rx(struct ieee80211_hw * dev)106 static void rtl8180_handle_rx(struct ieee80211_hw *dev)
107 {
108 struct rtl8180_priv *priv = dev->priv;
109 unsigned int count = 32;
110 u8 signal, agc, sq;
111
112 while (count--) {
113 struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx];
114 struct sk_buff *skb = priv->rx_buf[priv->rx_idx];
115 u32 flags = le32_to_cpu(entry->flags);
116
117 if (flags & RTL818X_RX_DESC_FLAG_OWN)
118 return;
119
120 if (unlikely(flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL |
121 RTL818X_RX_DESC_FLAG_FOF |
122 RTL818X_RX_DESC_FLAG_RX_ERR)))
123 goto done;
124 else {
125 u32 flags2 = le32_to_cpu(entry->flags2);
126 struct ieee80211_rx_status rx_status = {0};
127 struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_SIZE);
128
129 if (unlikely(!new_skb))
130 goto done;
131
132 pci_unmap_single(priv->pdev,
133 *((dma_addr_t *)skb->cb),
134 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
135 skb_put(skb, flags & 0xFFF);
136
137 rx_status.antenna = (flags2 >> 15) & 1;
138 rx_status.rate_idx = (flags >> 20) & 0xF;
139 agc = (flags2 >> 17) & 0x7F;
140 if (priv->r8185) {
141 if (rx_status.rate_idx > 3)
142 signal = 90 - clamp_t(u8, agc, 25, 90);
143 else
144 signal = 95 - clamp_t(u8, agc, 30, 95);
145 } else {
146 sq = flags2 & 0xff;
147 signal = priv->rf->calc_rssi(agc, sq);
148 }
149 rx_status.signal = signal;
150 rx_status.freq = dev->conf.chandef.chan->center_freq;
151 rx_status.band = dev->conf.chandef.chan->band;
152 rx_status.mactime = le64_to_cpu(entry->tsft);
153 rx_status.flag |= RX_FLAG_MACTIME_START;
154 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
155 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
156
157 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
158 ieee80211_rx_irqsafe(dev, skb);
159
160 skb = new_skb;
161 priv->rx_buf[priv->rx_idx] = skb;
162 *((dma_addr_t *) skb->cb) =
163 pci_map_single(priv->pdev, skb_tail_pointer(skb),
164 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
165 }
166
167 done:
168 entry->rx_buf = cpu_to_le32(*((dma_addr_t *)skb->cb));
169 entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
170 MAX_RX_SIZE);
171 if (priv->rx_idx == 31)
172 entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
173 priv->rx_idx = (priv->rx_idx + 1) % 32;
174 }
175 }
176
rtl8180_handle_tx(struct ieee80211_hw * dev,unsigned int prio)177 static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio)
178 {
179 struct rtl8180_priv *priv = dev->priv;
180 struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
181
182 while (skb_queue_len(&ring->queue)) {
183 struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
184 struct sk_buff *skb;
185 struct ieee80211_tx_info *info;
186 u32 flags = le32_to_cpu(entry->flags);
187
188 if (flags & RTL818X_TX_DESC_FLAG_OWN)
189 return;
190
191 ring->idx = (ring->idx + 1) % ring->entries;
192 skb = __skb_dequeue(&ring->queue);
193 pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
194 skb->len, PCI_DMA_TODEVICE);
195
196 info = IEEE80211_SKB_CB(skb);
197 ieee80211_tx_info_clear_status(info);
198
199 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
200 (flags & RTL818X_TX_DESC_FLAG_TX_OK))
201 info->flags |= IEEE80211_TX_STAT_ACK;
202
203 info->status.rates[0].count = (flags & 0xFF) + 1;
204 info->status.rates[1].idx = -1;
205
206 ieee80211_tx_status_irqsafe(dev, skb);
207 if (ring->entries - skb_queue_len(&ring->queue) == 2)
208 ieee80211_wake_queue(dev, prio);
209 }
210 }
211
rtl8180_interrupt(int irq,void * dev_id)212 static irqreturn_t rtl8180_interrupt(int irq, void *dev_id)
213 {
214 struct ieee80211_hw *dev = dev_id;
215 struct rtl8180_priv *priv = dev->priv;
216 u16 reg;
217
218 spin_lock(&priv->lock);
219 reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS);
220 if (unlikely(reg == 0xFFFF)) {
221 spin_unlock(&priv->lock);
222 return IRQ_HANDLED;
223 }
224
225 rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg);
226
227 if (reg & (RTL818X_INT_TXB_OK | RTL818X_INT_TXB_ERR))
228 rtl8180_handle_tx(dev, 3);
229
230 if (reg & (RTL818X_INT_TXH_OK | RTL818X_INT_TXH_ERR))
231 rtl8180_handle_tx(dev, 2);
232
233 if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR))
234 rtl8180_handle_tx(dev, 1);
235
236 if (reg & (RTL818X_INT_TXL_OK | RTL818X_INT_TXL_ERR))
237 rtl8180_handle_tx(dev, 0);
238
239 if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR))
240 rtl8180_handle_rx(dev);
241
242 spin_unlock(&priv->lock);
243
244 return IRQ_HANDLED;
245 }
246
rtl8180_tx(struct ieee80211_hw * dev,struct ieee80211_tx_control * control,struct sk_buff * skb)247 static void rtl8180_tx(struct ieee80211_hw *dev,
248 struct ieee80211_tx_control *control,
249 struct sk_buff *skb)
250 {
251 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
252 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
253 struct rtl8180_priv *priv = dev->priv;
254 struct rtl8180_tx_ring *ring;
255 struct rtl8180_tx_desc *entry;
256 unsigned long flags;
257 unsigned int idx, prio;
258 dma_addr_t mapping;
259 u32 tx_flags;
260 u8 rc_flags;
261 u16 plcp_len = 0;
262 __le16 rts_duration = 0;
263
264 prio = skb_get_queue_mapping(skb);
265 ring = &priv->tx_ring[prio];
266
267 mapping = pci_map_single(priv->pdev, skb->data,
268 skb->len, PCI_DMA_TODEVICE);
269
270 tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
271 RTL818X_TX_DESC_FLAG_LS |
272 (ieee80211_get_tx_rate(dev, info)->hw_value << 24) |
273 skb->len;
274
275 if (priv->r8185)
276 tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
277 RTL818X_TX_DESC_FLAG_NO_ENC;
278
279 rc_flags = info->control.rates[0].flags;
280 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
281 tx_flags |= RTL818X_TX_DESC_FLAG_RTS;
282 tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
283 } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
284 tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
285 tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
286 }
287
288 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
289 rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len,
290 info);
291
292 if (!priv->r8185) {
293 unsigned int remainder;
294
295 plcp_len = DIV_ROUND_UP(16 * (skb->len + 4),
296 (ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
297 remainder = (16 * (skb->len + 4)) %
298 ((ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
299 if (remainder <= 6)
300 plcp_len |= 1 << 15;
301 }
302
303 spin_lock_irqsave(&priv->lock, flags);
304
305 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
306 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
307 priv->seqno += 0x10;
308 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
309 hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
310 }
311
312 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
313 entry = &ring->desc[idx];
314
315 entry->rts_duration = rts_duration;
316 entry->plcp_len = cpu_to_le16(plcp_len);
317 entry->tx_buf = cpu_to_le32(mapping);
318 entry->frame_len = cpu_to_le32(skb->len);
319 entry->flags2 = info->control.rates[1].idx >= 0 ?
320 ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0;
321 entry->retry_limit = info->control.rates[0].count;
322 entry->flags = cpu_to_le32(tx_flags);
323 __skb_queue_tail(&ring->queue, skb);
324 if (ring->entries - skb_queue_len(&ring->queue) < 2)
325 ieee80211_stop_queue(dev, prio);
326
327 spin_unlock_irqrestore(&priv->lock, flags);
328
329 rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4)));
330 }
331
rtl8180_set_anaparam(struct rtl8180_priv * priv,u32 anaparam)332 void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam)
333 {
334 u8 reg;
335
336 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
337 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
338 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
339 reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
340 rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
341 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
342 reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
343 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
344 }
345
rtl8180_init_hw(struct ieee80211_hw * dev)346 static int rtl8180_init_hw(struct ieee80211_hw *dev)
347 {
348 struct rtl8180_priv *priv = dev->priv;
349 u16 reg;
350
351 rtl818x_iowrite8(priv, &priv->map->CMD, 0);
352 rtl818x_ioread8(priv, &priv->map->CMD);
353 msleep(10);
354
355 /* reset */
356 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
357 rtl818x_ioread8(priv, &priv->map->CMD);
358
359 reg = rtl818x_ioread8(priv, &priv->map->CMD);
360 reg &= (1 << 1);
361 reg |= RTL818X_CMD_RESET;
362 rtl818x_iowrite8(priv, &priv->map->CMD, RTL818X_CMD_RESET);
363 rtl818x_ioread8(priv, &priv->map->CMD);
364 msleep(200);
365
366 /* check success of reset */
367 if (rtl818x_ioread8(priv, &priv->map->CMD) & RTL818X_CMD_RESET) {
368 wiphy_err(dev->wiphy, "reset timeout!\n");
369 return -ETIMEDOUT;
370 }
371
372 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
373 rtl818x_ioread8(priv, &priv->map->CMD);
374 msleep(200);
375
376 if (rtl818x_ioread8(priv, &priv->map->CONFIG3) & (1 << 3)) {
377 /* For cardbus */
378 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
379 reg |= 1 << 1;
380 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
381 reg = rtl818x_ioread16(priv, &priv->map->FEMR);
382 reg |= (1 << 15) | (1 << 14) | (1 << 4);
383 rtl818x_iowrite16(priv, &priv->map->FEMR, reg);
384 }
385
386 rtl818x_iowrite8(priv, &priv->map->MSR, 0);
387
388 if (!priv->r8185)
389 rtl8180_set_anaparam(priv, priv->anaparam);
390
391 rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
392 rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma);
393 rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma);
394 rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma);
395 rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma);
396
397 /* TODO: necessary? specs indicate not */
398 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
399 reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
400 rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg & ~(1 << 3));
401 if (priv->r8185) {
402 reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
403 rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg | (1 << 4));
404 }
405 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
406
407 /* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */
408
409 /* TODO: turn off hw wep on rtl8180 */
410
411 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
412
413 if (priv->r8185) {
414 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
415 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
416 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
417
418 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
419
420 /* TODO: set ClkRun enable? necessary? */
421 reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE);
422 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6));
423 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
424 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
425 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2));
426 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
427 } else {
428 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x1);
429 rtl818x_iowrite8(priv, &priv->map->SECURITY, 0);
430
431 rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6);
432 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C);
433 }
434
435 priv->rf->init(dev);
436 if (priv->r8185)
437 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
438 return 0;
439 }
440
rtl8180_init_rx_ring(struct ieee80211_hw * dev)441 static int rtl8180_init_rx_ring(struct ieee80211_hw *dev)
442 {
443 struct rtl8180_priv *priv = dev->priv;
444 struct rtl8180_rx_desc *entry;
445 int i;
446
447 priv->rx_ring = pci_alloc_consistent(priv->pdev,
448 sizeof(*priv->rx_ring) * 32,
449 &priv->rx_ring_dma);
450
451 if (!priv->rx_ring || (unsigned long)priv->rx_ring & 0xFF) {
452 wiphy_err(dev->wiphy, "Cannot allocate RX ring\n");
453 return -ENOMEM;
454 }
455
456 memset(priv->rx_ring, 0, sizeof(*priv->rx_ring) * 32);
457 priv->rx_idx = 0;
458
459 for (i = 0; i < 32; i++) {
460 struct sk_buff *skb = dev_alloc_skb(MAX_RX_SIZE);
461 dma_addr_t *mapping;
462 entry = &priv->rx_ring[i];
463 if (!skb)
464 return 0;
465
466 priv->rx_buf[i] = skb;
467 mapping = (dma_addr_t *)skb->cb;
468 *mapping = pci_map_single(priv->pdev, skb_tail_pointer(skb),
469 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
470 entry->rx_buf = cpu_to_le32(*mapping);
471 entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
472 MAX_RX_SIZE);
473 }
474 entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
475 return 0;
476 }
477
rtl8180_free_rx_ring(struct ieee80211_hw * dev)478 static void rtl8180_free_rx_ring(struct ieee80211_hw *dev)
479 {
480 struct rtl8180_priv *priv = dev->priv;
481 int i;
482
483 for (i = 0; i < 32; i++) {
484 struct sk_buff *skb = priv->rx_buf[i];
485 if (!skb)
486 continue;
487
488 pci_unmap_single(priv->pdev,
489 *((dma_addr_t *)skb->cb),
490 MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
491 kfree_skb(skb);
492 }
493
494 pci_free_consistent(priv->pdev, sizeof(*priv->rx_ring) * 32,
495 priv->rx_ring, priv->rx_ring_dma);
496 priv->rx_ring = NULL;
497 }
498
rtl8180_init_tx_ring(struct ieee80211_hw * dev,unsigned int prio,unsigned int entries)499 static int rtl8180_init_tx_ring(struct ieee80211_hw *dev,
500 unsigned int prio, unsigned int entries)
501 {
502 struct rtl8180_priv *priv = dev->priv;
503 struct rtl8180_tx_desc *ring;
504 dma_addr_t dma;
505 int i;
506
507 ring = pci_alloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
508 if (!ring || (unsigned long)ring & 0xFF) {
509 wiphy_err(dev->wiphy, "Cannot allocate TX ring (prio = %d)\n",
510 prio);
511 return -ENOMEM;
512 }
513
514 memset(ring, 0, sizeof(*ring)*entries);
515 priv->tx_ring[prio].desc = ring;
516 priv->tx_ring[prio].dma = dma;
517 priv->tx_ring[prio].idx = 0;
518 priv->tx_ring[prio].entries = entries;
519 skb_queue_head_init(&priv->tx_ring[prio].queue);
520
521 for (i = 0; i < entries; i++)
522 ring[i].next_tx_desc =
523 cpu_to_le32((u32)dma + ((i + 1) % entries) * sizeof(*ring));
524
525 return 0;
526 }
527
rtl8180_free_tx_ring(struct ieee80211_hw * dev,unsigned int prio)528 static void rtl8180_free_tx_ring(struct ieee80211_hw *dev, unsigned int prio)
529 {
530 struct rtl8180_priv *priv = dev->priv;
531 struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
532
533 while (skb_queue_len(&ring->queue)) {
534 struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
535 struct sk_buff *skb = __skb_dequeue(&ring->queue);
536
537 pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
538 skb->len, PCI_DMA_TODEVICE);
539 kfree_skb(skb);
540 ring->idx = (ring->idx + 1) % ring->entries;
541 }
542
543 pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
544 ring->desc, ring->dma);
545 ring->desc = NULL;
546 }
547
rtl8180_start(struct ieee80211_hw * dev)548 static int rtl8180_start(struct ieee80211_hw *dev)
549 {
550 struct rtl8180_priv *priv = dev->priv;
551 int ret, i;
552 u32 reg;
553
554 ret = rtl8180_init_rx_ring(dev);
555 if (ret)
556 return ret;
557
558 for (i = 0; i < 4; i++)
559 if ((ret = rtl8180_init_tx_ring(dev, i, 16)))
560 goto err_free_rings;
561
562 ret = rtl8180_init_hw(dev);
563 if (ret)
564 goto err_free_rings;
565
566 rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
567 rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma);
568 rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma);
569 rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma);
570 rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma);
571
572 ret = request_irq(priv->pdev->irq, rtl8180_interrupt,
573 IRQF_SHARED, KBUILD_MODNAME, dev);
574 if (ret) {
575 wiphy_err(dev->wiphy, "failed to register IRQ handler\n");
576 goto err_free_rings;
577 }
578
579 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
580
581 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
582 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
583
584 reg = RTL818X_RX_CONF_ONLYERLPKT |
585 RTL818X_RX_CONF_RX_AUTORESETPHY |
586 RTL818X_RX_CONF_MGMT |
587 RTL818X_RX_CONF_DATA |
588 (7 << 8 /* MAX RX DMA */) |
589 RTL818X_RX_CONF_BROADCAST |
590 RTL818X_RX_CONF_NICMAC;
591
592 if (priv->r8185)
593 reg |= RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2;
594 else {
595 reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE1)
596 ? RTL818X_RX_CONF_CSDM1 : 0;
597 reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE2)
598 ? RTL818X_RX_CONF_CSDM2 : 0;
599 }
600
601 priv->rx_conf = reg;
602 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
603
604 if (priv->r8185) {
605 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
606 reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
607 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
608 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
609
610 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
611 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
612 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
613 reg |= RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
614 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
615
616 /* disable early TX */
617 rtl818x_iowrite8(priv, (u8 __iomem *)priv->map + 0xec, 0x3f);
618 }
619
620 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
621 reg |= (6 << 21 /* MAX TX DMA */) |
622 RTL818X_TX_CONF_NO_ICV;
623
624 if (priv->r8185)
625 reg &= ~RTL818X_TX_CONF_PROBE_DTS;
626 else
627 reg &= ~RTL818X_TX_CONF_HW_SEQNUM;
628
629 /* different meaning, same value on both rtl8185 and rtl8180 */
630 reg &= ~RTL818X_TX_CONF_SAT_HWPLCP;
631
632 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
633
634 reg = rtl818x_ioread8(priv, &priv->map->CMD);
635 reg |= RTL818X_CMD_RX_ENABLE;
636 reg |= RTL818X_CMD_TX_ENABLE;
637 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
638
639 return 0;
640
641 err_free_rings:
642 rtl8180_free_rx_ring(dev);
643 for (i = 0; i < 4; i++)
644 if (priv->tx_ring[i].desc)
645 rtl8180_free_tx_ring(dev, i);
646
647 return ret;
648 }
649
rtl8180_stop(struct ieee80211_hw * dev)650 static void rtl8180_stop(struct ieee80211_hw *dev)
651 {
652 struct rtl8180_priv *priv = dev->priv;
653 u8 reg;
654 int i;
655
656 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
657
658 reg = rtl818x_ioread8(priv, &priv->map->CMD);
659 reg &= ~RTL818X_CMD_TX_ENABLE;
660 reg &= ~RTL818X_CMD_RX_ENABLE;
661 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
662
663 priv->rf->stop(dev);
664
665 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
666 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
667 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
668 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
669
670 free_irq(priv->pdev->irq, dev);
671
672 rtl8180_free_rx_ring(dev);
673 for (i = 0; i < 4; i++)
674 rtl8180_free_tx_ring(dev, i);
675 }
676
rtl8180_get_tsf(struct ieee80211_hw * dev,struct ieee80211_vif * vif)677 static u64 rtl8180_get_tsf(struct ieee80211_hw *dev,
678 struct ieee80211_vif *vif)
679 {
680 struct rtl8180_priv *priv = dev->priv;
681
682 return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
683 (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
684 }
685
rtl8180_beacon_work(struct work_struct * work)686 static void rtl8180_beacon_work(struct work_struct *work)
687 {
688 struct rtl8180_vif *vif_priv =
689 container_of(work, struct rtl8180_vif, beacon_work.work);
690 struct ieee80211_vif *vif =
691 container_of((void *)vif_priv, struct ieee80211_vif, drv_priv);
692 struct ieee80211_hw *dev = vif_priv->dev;
693 struct ieee80211_mgmt *mgmt;
694 struct sk_buff *skb;
695
696 /* don't overflow the tx ring */
697 if (ieee80211_queue_stopped(dev, 0))
698 goto resched;
699
700 /* grab a fresh beacon */
701 skb = ieee80211_beacon_get(dev, vif);
702 if (!skb)
703 goto resched;
704
705 /*
706 * update beacon timestamp w/ TSF value
707 * TODO: make hardware update beacon timestamp
708 */
709 mgmt = (struct ieee80211_mgmt *)skb->data;
710 mgmt->u.beacon.timestamp = cpu_to_le64(rtl8180_get_tsf(dev, vif));
711
712 /* TODO: use actual beacon queue */
713 skb_set_queue_mapping(skb, 0);
714
715 rtl8180_tx(dev, NULL, skb);
716
717 resched:
718 /*
719 * schedule next beacon
720 * TODO: use hardware support for beacon timing
721 */
722 schedule_delayed_work(&vif_priv->beacon_work,
723 usecs_to_jiffies(1024 * vif->bss_conf.beacon_int));
724 }
725
rtl8180_add_interface(struct ieee80211_hw * dev,struct ieee80211_vif * vif)726 static int rtl8180_add_interface(struct ieee80211_hw *dev,
727 struct ieee80211_vif *vif)
728 {
729 struct rtl8180_priv *priv = dev->priv;
730 struct rtl8180_vif *vif_priv;
731
732 /*
733 * We only support one active interface at a time.
734 */
735 if (priv->vif)
736 return -EBUSY;
737
738 switch (vif->type) {
739 case NL80211_IFTYPE_STATION:
740 case NL80211_IFTYPE_ADHOC:
741 break;
742 default:
743 return -EOPNOTSUPP;
744 }
745
746 priv->vif = vif;
747
748 /* Initialize driver private area */
749 vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
750 vif_priv->dev = dev;
751 INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8180_beacon_work);
752 vif_priv->enable_beacon = false;
753
754 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
755 rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->MAC[0],
756 le32_to_cpu(*(__le32 *)vif->addr));
757 rtl818x_iowrite16(priv, (__le16 __iomem *)&priv->map->MAC[4],
758 le16_to_cpu(*(__le16 *)(vif->addr + 4)));
759 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
760
761 return 0;
762 }
763
rtl8180_remove_interface(struct ieee80211_hw * dev,struct ieee80211_vif * vif)764 static void rtl8180_remove_interface(struct ieee80211_hw *dev,
765 struct ieee80211_vif *vif)
766 {
767 struct rtl8180_priv *priv = dev->priv;
768 priv->vif = NULL;
769 }
770
rtl8180_config(struct ieee80211_hw * dev,u32 changed)771 static int rtl8180_config(struct ieee80211_hw *dev, u32 changed)
772 {
773 struct rtl8180_priv *priv = dev->priv;
774 struct ieee80211_conf *conf = &dev->conf;
775
776 priv->rf->set_chan(dev, conf);
777
778 return 0;
779 }
780
rtl8180_bss_info_changed(struct ieee80211_hw * dev,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u32 changed)781 static void rtl8180_bss_info_changed(struct ieee80211_hw *dev,
782 struct ieee80211_vif *vif,
783 struct ieee80211_bss_conf *info,
784 u32 changed)
785 {
786 struct rtl8180_priv *priv = dev->priv;
787 struct rtl8180_vif *vif_priv;
788 int i;
789 u8 reg;
790
791 vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
792
793 if (changed & BSS_CHANGED_BSSID) {
794 for (i = 0; i < ETH_ALEN; i++)
795 rtl818x_iowrite8(priv, &priv->map->BSSID[i],
796 info->bssid[i]);
797
798 if (is_valid_ether_addr(info->bssid)) {
799 if (vif->type == NL80211_IFTYPE_ADHOC)
800 reg = RTL818X_MSR_ADHOC;
801 else
802 reg = RTL818X_MSR_INFRA;
803 } else
804 reg = RTL818X_MSR_NO_LINK;
805 rtl818x_iowrite8(priv, &priv->map->MSR, reg);
806 }
807
808 if (changed & BSS_CHANGED_ERP_SLOT && priv->rf->conf_erp)
809 priv->rf->conf_erp(dev, info);
810
811 if (changed & BSS_CHANGED_BEACON_ENABLED)
812 vif_priv->enable_beacon = info->enable_beacon;
813
814 if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) {
815 cancel_delayed_work_sync(&vif_priv->beacon_work);
816 if (vif_priv->enable_beacon)
817 schedule_work(&vif_priv->beacon_work.work);
818 }
819 }
820
rtl8180_prepare_multicast(struct ieee80211_hw * dev,struct netdev_hw_addr_list * mc_list)821 static u64 rtl8180_prepare_multicast(struct ieee80211_hw *dev,
822 struct netdev_hw_addr_list *mc_list)
823 {
824 return netdev_hw_addr_list_count(mc_list);
825 }
826
rtl8180_configure_filter(struct ieee80211_hw * dev,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)827 static void rtl8180_configure_filter(struct ieee80211_hw *dev,
828 unsigned int changed_flags,
829 unsigned int *total_flags,
830 u64 multicast)
831 {
832 struct rtl8180_priv *priv = dev->priv;
833
834 if (changed_flags & FIF_FCSFAIL)
835 priv->rx_conf ^= RTL818X_RX_CONF_FCS;
836 if (changed_flags & FIF_CONTROL)
837 priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
838 if (changed_flags & FIF_OTHER_BSS)
839 priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
840 if (*total_flags & FIF_ALLMULTI || multicast > 0)
841 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
842 else
843 priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
844
845 *total_flags = 0;
846
847 if (priv->rx_conf & RTL818X_RX_CONF_FCS)
848 *total_flags |= FIF_FCSFAIL;
849 if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
850 *total_flags |= FIF_CONTROL;
851 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
852 *total_flags |= FIF_OTHER_BSS;
853 if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
854 *total_flags |= FIF_ALLMULTI;
855
856 rtl818x_iowrite32(priv, &priv->map->RX_CONF, priv->rx_conf);
857 }
858
859 static const struct ieee80211_ops rtl8180_ops = {
860 .tx = rtl8180_tx,
861 .start = rtl8180_start,
862 .stop = rtl8180_stop,
863 .add_interface = rtl8180_add_interface,
864 .remove_interface = rtl8180_remove_interface,
865 .config = rtl8180_config,
866 .bss_info_changed = rtl8180_bss_info_changed,
867 .prepare_multicast = rtl8180_prepare_multicast,
868 .configure_filter = rtl8180_configure_filter,
869 .get_tsf = rtl8180_get_tsf,
870 };
871
rtl8180_eeprom_register_read(struct eeprom_93cx6 * eeprom)872 static void rtl8180_eeprom_register_read(struct eeprom_93cx6 *eeprom)
873 {
874 struct ieee80211_hw *dev = eeprom->data;
875 struct rtl8180_priv *priv = dev->priv;
876 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
877
878 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
879 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
880 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
881 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
882 }
883
rtl8180_eeprom_register_write(struct eeprom_93cx6 * eeprom)884 static void rtl8180_eeprom_register_write(struct eeprom_93cx6 *eeprom)
885 {
886 struct ieee80211_hw *dev = eeprom->data;
887 struct rtl8180_priv *priv = dev->priv;
888 u8 reg = 2 << 6;
889
890 if (eeprom->reg_data_in)
891 reg |= RTL818X_EEPROM_CMD_WRITE;
892 if (eeprom->reg_data_out)
893 reg |= RTL818X_EEPROM_CMD_READ;
894 if (eeprom->reg_data_clock)
895 reg |= RTL818X_EEPROM_CMD_CK;
896 if (eeprom->reg_chip_select)
897 reg |= RTL818X_EEPROM_CMD_CS;
898
899 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
900 rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
901 udelay(10);
902 }
903
rtl8180_probe(struct pci_dev * pdev,const struct pci_device_id * id)904 static int rtl8180_probe(struct pci_dev *pdev,
905 const struct pci_device_id *id)
906 {
907 struct ieee80211_hw *dev;
908 struct rtl8180_priv *priv;
909 unsigned long mem_addr, mem_len;
910 unsigned int io_addr, io_len;
911 int err, i;
912 struct eeprom_93cx6 eeprom;
913 const char *chip_name, *rf_name = NULL;
914 u32 reg;
915 u16 eeprom_val;
916 u8 mac_addr[ETH_ALEN];
917
918 err = pci_enable_device(pdev);
919 if (err) {
920 printk(KERN_ERR "%s (rtl8180): Cannot enable new PCI device\n",
921 pci_name(pdev));
922 return err;
923 }
924
925 err = pci_request_regions(pdev, KBUILD_MODNAME);
926 if (err) {
927 printk(KERN_ERR "%s (rtl8180): Cannot obtain PCI resources\n",
928 pci_name(pdev));
929 return err;
930 }
931
932 io_addr = pci_resource_start(pdev, 0);
933 io_len = pci_resource_len(pdev, 0);
934 mem_addr = pci_resource_start(pdev, 1);
935 mem_len = pci_resource_len(pdev, 1);
936
937 if (mem_len < sizeof(struct rtl818x_csr) ||
938 io_len < sizeof(struct rtl818x_csr)) {
939 printk(KERN_ERR "%s (rtl8180): Too short PCI resources\n",
940 pci_name(pdev));
941 err = -ENOMEM;
942 goto err_free_reg;
943 }
944
945 if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) ||
946 (err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))) {
947 printk(KERN_ERR "%s (rtl8180): No suitable DMA available\n",
948 pci_name(pdev));
949 goto err_free_reg;
950 }
951
952 pci_set_master(pdev);
953
954 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8180_ops);
955 if (!dev) {
956 printk(KERN_ERR "%s (rtl8180): ieee80211 alloc failed\n",
957 pci_name(pdev));
958 err = -ENOMEM;
959 goto err_free_reg;
960 }
961
962 priv = dev->priv;
963 priv->pdev = pdev;
964
965 dev->max_rates = 2;
966 SET_IEEE80211_DEV(dev, &pdev->dev);
967 pci_set_drvdata(pdev, dev);
968
969 priv->map = pci_iomap(pdev, 1, mem_len);
970 if (!priv->map)
971 priv->map = pci_iomap(pdev, 0, io_len);
972
973 if (!priv->map) {
974 printk(KERN_ERR "%s (rtl8180): Cannot map device memory\n",
975 pci_name(pdev));
976 goto err_free_dev;
977 }
978
979 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
980 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
981
982 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
983 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
984
985 priv->band.band = IEEE80211_BAND_2GHZ;
986 priv->band.channels = priv->channels;
987 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
988 priv->band.bitrates = priv->rates;
989 priv->band.n_bitrates = 4;
990 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
991
992 dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
993 IEEE80211_HW_RX_INCLUDES_FCS |
994 IEEE80211_HW_SIGNAL_UNSPEC;
995 dev->vif_data_size = sizeof(struct rtl8180_vif);
996 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
997 BIT(NL80211_IFTYPE_ADHOC);
998 dev->queues = 1;
999 dev->max_signal = 65;
1000
1001 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
1002 reg &= RTL818X_TX_CONF_HWVER_MASK;
1003 switch (reg) {
1004 case RTL818X_TX_CONF_R8180_ABCD:
1005 chip_name = "RTL8180";
1006 break;
1007 case RTL818X_TX_CONF_R8180_F:
1008 chip_name = "RTL8180vF";
1009 break;
1010 case RTL818X_TX_CONF_R8185_ABC:
1011 chip_name = "RTL8185";
1012 break;
1013 case RTL818X_TX_CONF_R8185_D:
1014 chip_name = "RTL8185vD";
1015 break;
1016 default:
1017 printk(KERN_ERR "%s (rtl8180): Unknown chip! (0x%x)\n",
1018 pci_name(pdev), reg >> 25);
1019 goto err_iounmap;
1020 }
1021
1022 priv->r8185 = reg & RTL818X_TX_CONF_R8185_ABC;
1023 if (priv->r8185) {
1024 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
1025 pci_try_set_mwi(pdev);
1026 }
1027
1028 eeprom.data = dev;
1029 eeprom.register_read = rtl8180_eeprom_register_read;
1030 eeprom.register_write = rtl8180_eeprom_register_write;
1031 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
1032 eeprom.width = PCI_EEPROM_WIDTH_93C66;
1033 else
1034 eeprom.width = PCI_EEPROM_WIDTH_93C46;
1035
1036 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_PROGRAM);
1037 rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
1038 udelay(10);
1039
1040 eeprom_93cx6_read(&eeprom, 0x06, &eeprom_val);
1041 eeprom_val &= 0xFF;
1042 switch (eeprom_val) {
1043 case 1: rf_name = "Intersil";
1044 break;
1045 case 2: rf_name = "RFMD";
1046 break;
1047 case 3: priv->rf = &sa2400_rf_ops;
1048 break;
1049 case 4: priv->rf = &max2820_rf_ops;
1050 break;
1051 case 5: priv->rf = &grf5101_rf_ops;
1052 break;
1053 case 9: priv->rf = rtl8180_detect_rf(dev);
1054 break;
1055 case 10:
1056 rf_name = "RTL8255";
1057 break;
1058 default:
1059 printk(KERN_ERR "%s (rtl8180): Unknown RF! (0x%x)\n",
1060 pci_name(pdev), eeprom_val);
1061 goto err_iounmap;
1062 }
1063
1064 if (!priv->rf) {
1065 printk(KERN_ERR "%s (rtl8180): %s RF frontend not supported!\n",
1066 pci_name(pdev), rf_name);
1067 goto err_iounmap;
1068 }
1069
1070 eeprom_93cx6_read(&eeprom, 0x17, &eeprom_val);
1071 priv->csthreshold = eeprom_val >> 8;
1072 if (!priv->r8185) {
1073 __le32 anaparam;
1074 eeprom_93cx6_multiread(&eeprom, 0xD, (__le16 *)&anaparam, 2);
1075 priv->anaparam = le32_to_cpu(anaparam);
1076 eeprom_93cx6_read(&eeprom, 0x19, &priv->rfparam);
1077 }
1078
1079 eeprom_93cx6_multiread(&eeprom, 0x7, (__le16 *)mac_addr, 3);
1080 if (!is_valid_ether_addr(mac_addr)) {
1081 printk(KERN_WARNING "%s (rtl8180): Invalid hwaddr! Using"
1082 " randomly generated MAC addr\n", pci_name(pdev));
1083 eth_random_addr(mac_addr);
1084 }
1085 SET_IEEE80211_PERM_ADDR(dev, mac_addr);
1086
1087 /* CCK TX power */
1088 for (i = 0; i < 14; i += 2) {
1089 u16 txpwr;
1090 eeprom_93cx6_read(&eeprom, 0x10 + (i >> 1), &txpwr);
1091 priv->channels[i].hw_value = txpwr & 0xFF;
1092 priv->channels[i + 1].hw_value = txpwr >> 8;
1093 }
1094
1095 /* OFDM TX power */
1096 if (priv->r8185) {
1097 for (i = 0; i < 14; i += 2) {
1098 u16 txpwr;
1099 eeprom_93cx6_read(&eeprom, 0x20 + (i >> 1), &txpwr);
1100 priv->channels[i].hw_value |= (txpwr & 0xFF) << 8;
1101 priv->channels[i + 1].hw_value |= txpwr & 0xFF00;
1102 }
1103 }
1104
1105 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
1106
1107 spin_lock_init(&priv->lock);
1108
1109 err = ieee80211_register_hw(dev);
1110 if (err) {
1111 printk(KERN_ERR "%s (rtl8180): Cannot register device\n",
1112 pci_name(pdev));
1113 goto err_iounmap;
1114 }
1115
1116 wiphy_info(dev->wiphy, "hwaddr %pm, %s + %s\n",
1117 mac_addr, chip_name, priv->rf->name);
1118
1119 return 0;
1120
1121 err_iounmap:
1122 iounmap(priv->map);
1123
1124 err_free_dev:
1125 pci_set_drvdata(pdev, NULL);
1126 ieee80211_free_hw(dev);
1127
1128 err_free_reg:
1129 pci_release_regions(pdev);
1130 pci_disable_device(pdev);
1131 return err;
1132 }
1133
rtl8180_remove(struct pci_dev * pdev)1134 static void rtl8180_remove(struct pci_dev *pdev)
1135 {
1136 struct ieee80211_hw *dev = pci_get_drvdata(pdev);
1137 struct rtl8180_priv *priv;
1138
1139 if (!dev)
1140 return;
1141
1142 ieee80211_unregister_hw(dev);
1143
1144 priv = dev->priv;
1145
1146 pci_iounmap(pdev, priv->map);
1147 pci_release_regions(pdev);
1148 pci_disable_device(pdev);
1149 ieee80211_free_hw(dev);
1150 }
1151
1152 #ifdef CONFIG_PM
rtl8180_suspend(struct pci_dev * pdev,pm_message_t state)1153 static int rtl8180_suspend(struct pci_dev *pdev, pm_message_t state)
1154 {
1155 pci_save_state(pdev);
1156 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1157 return 0;
1158 }
1159
rtl8180_resume(struct pci_dev * pdev)1160 static int rtl8180_resume(struct pci_dev *pdev)
1161 {
1162 pci_set_power_state(pdev, PCI_D0);
1163 pci_restore_state(pdev);
1164 return 0;
1165 }
1166
1167 #endif /* CONFIG_PM */
1168
1169 static struct pci_driver rtl8180_driver = {
1170 .name = KBUILD_MODNAME,
1171 .id_table = rtl8180_table,
1172 .probe = rtl8180_probe,
1173 .remove = rtl8180_remove,
1174 #ifdef CONFIG_PM
1175 .suspend = rtl8180_suspend,
1176 .resume = rtl8180_resume,
1177 #endif /* CONFIG_PM */
1178 };
1179
1180 module_pci_driver(rtl8180_driver);
1181