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f6532111 MW |
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> | |
5a0e3ad6 | 20 | #include <linux/slab.h> |
f6532111 MW |
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 "rtl8180_rtl8225.h" | |
28 | #include "rtl8180_sa2400.h" | |
29 | #include "rtl8180_max2820.h" | |
30 | #include "rtl8180_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 | ||
a3aa1884 | 37 | static DEFINE_PCI_DEVICE_TABLE(rtl8180_table) = { |
f6532111 MW |
38 | /* rtl8185 */ |
39 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8185) }, | |
4fcc5470 | 40 | { PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x700f) }, |
f6532111 MW |
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 | ||
8318d78a JB |
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 | ||
f6532111 MW |
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 | ||
107 | while (count--) { | |
108 | struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx]; | |
109 | struct sk_buff *skb = priv->rx_buf[priv->rx_idx]; | |
110 | u32 flags = le32_to_cpu(entry->flags); | |
111 | ||
38e3b0d8 | 112 | if (flags & RTL818X_RX_DESC_FLAG_OWN) |
f6532111 MW |
113 | return; |
114 | ||
38e3b0d8 HRK |
115 | if (unlikely(flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL | |
116 | RTL818X_RX_DESC_FLAG_FOF | | |
117 | RTL818X_RX_DESC_FLAG_RX_ERR))) | |
f6532111 MW |
118 | goto done; |
119 | else { | |
120 | u32 flags2 = le32_to_cpu(entry->flags2); | |
121 | struct ieee80211_rx_status rx_status = {0}; | |
122 | struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_SIZE); | |
123 | ||
124 | if (unlikely(!new_skb)) | |
125 | goto done; | |
126 | ||
127 | pci_unmap_single(priv->pdev, | |
128 | *((dma_addr_t *)skb->cb), | |
129 | MAX_RX_SIZE, PCI_DMA_FROMDEVICE); | |
130 | skb_put(skb, flags & 0xFFF); | |
131 | ||
132 | rx_status.antenna = (flags2 >> 15) & 1; | |
133 | /* TODO: improve signal/rssi reporting */ | |
566bfe5a | 134 | rx_status.signal = (flags2 >> 8) & 0x7F; |
8318d78a JB |
135 | /* XXX: is this correct? */ |
136 | rx_status.rate_idx = (flags >> 20) & 0xF; | |
137 | rx_status.freq = dev->conf.channel->center_freq; | |
138 | rx_status.band = dev->conf.channel->band; | |
f6532111 MW |
139 | rx_status.mactime = le64_to_cpu(entry->tsft); |
140 | rx_status.flag |= RX_FLAG_TSFT; | |
38e3b0d8 | 141 | if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR) |
f6532111 MW |
142 | rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; |
143 | ||
f1d58c25 JB |
144 | memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); |
145 | ieee80211_rx_irqsafe(dev, skb); | |
f6532111 MW |
146 | |
147 | skb = new_skb; | |
148 | priv->rx_buf[priv->rx_idx] = skb; | |
149 | *((dma_addr_t *) skb->cb) = | |
150 | pci_map_single(priv->pdev, skb_tail_pointer(skb), | |
151 | MAX_RX_SIZE, PCI_DMA_FROMDEVICE); | |
152 | } | |
153 | ||
154 | done: | |
155 | entry->rx_buf = cpu_to_le32(*((dma_addr_t *)skb->cb)); | |
38e3b0d8 | 156 | entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN | |
f6532111 MW |
157 | MAX_RX_SIZE); |
158 | if (priv->rx_idx == 31) | |
38e3b0d8 | 159 | entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR); |
f6532111 MW |
160 | priv->rx_idx = (priv->rx_idx + 1) % 32; |
161 | } | |
162 | } | |
163 | ||
164 | static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio) | |
165 | { | |
166 | struct rtl8180_priv *priv = dev->priv; | |
167 | struct rtl8180_tx_ring *ring = &priv->tx_ring[prio]; | |
168 | ||
169 | while (skb_queue_len(&ring->queue)) { | |
170 | struct rtl8180_tx_desc *entry = &ring->desc[ring->idx]; | |
171 | struct sk_buff *skb; | |
e039fa4a | 172 | struct ieee80211_tx_info *info; |
f6532111 MW |
173 | u32 flags = le32_to_cpu(entry->flags); |
174 | ||
38e3b0d8 | 175 | if (flags & RTL818X_TX_DESC_FLAG_OWN) |
f6532111 MW |
176 | return; |
177 | ||
178 | ring->idx = (ring->idx + 1) % ring->entries; | |
179 | skb = __skb_dequeue(&ring->queue); | |
180 | pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf), | |
181 | skb->len, PCI_DMA_TODEVICE); | |
182 | ||
e039fa4a | 183 | info = IEEE80211_SKB_CB(skb); |
e6a9854b | 184 | ieee80211_tx_info_clear_status(info); |
f6532111 | 185 | |
e6a9854b JB |
186 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && |
187 | (flags & RTL818X_TX_DESC_FLAG_TX_OK)) | |
188 | info->flags |= IEEE80211_TX_STAT_ACK; | |
189 | ||
190 | info->status.rates[0].count = (flags & 0xFF) + 1; | |
d989ff7c | 191 | info->status.rates[1].idx = -1; |
f6532111 | 192 | |
e039fa4a | 193 | ieee80211_tx_status_irqsafe(dev, skb); |
f6532111 MW |
194 | if (ring->entries - skb_queue_len(&ring->queue) == 2) |
195 | ieee80211_wake_queue(dev, prio); | |
196 | } | |
197 | } | |
198 | ||
199 | static irqreturn_t rtl8180_interrupt(int irq, void *dev_id) | |
200 | { | |
201 | struct ieee80211_hw *dev = dev_id; | |
202 | struct rtl8180_priv *priv = dev->priv; | |
203 | u16 reg; | |
204 | ||
205 | spin_lock(&priv->lock); | |
206 | reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS); | |
207 | if (unlikely(reg == 0xFFFF)) { | |
208 | spin_unlock(&priv->lock); | |
209 | return IRQ_HANDLED; | |
210 | } | |
211 | ||
212 | rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg); | |
213 | ||
214 | if (reg & (RTL818X_INT_TXB_OK | RTL818X_INT_TXB_ERR)) | |
215 | rtl8180_handle_tx(dev, 3); | |
216 | ||
217 | if (reg & (RTL818X_INT_TXH_OK | RTL818X_INT_TXH_ERR)) | |
218 | rtl8180_handle_tx(dev, 2); | |
219 | ||
220 | if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR)) | |
221 | rtl8180_handle_tx(dev, 1); | |
222 | ||
223 | if (reg & (RTL818X_INT_TXL_OK | RTL818X_INT_TXL_ERR)) | |
224 | rtl8180_handle_tx(dev, 0); | |
225 | ||
226 | if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR)) | |
227 | rtl8180_handle_rx(dev); | |
228 | ||
229 | spin_unlock(&priv->lock); | |
230 | ||
231 | return IRQ_HANDLED; | |
232 | } | |
233 | ||
e039fa4a | 234 | static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb) |
f6532111 | 235 | { |
e039fa4a | 236 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
51e080de | 237 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; |
f6532111 MW |
238 | struct rtl8180_priv *priv = dev->priv; |
239 | struct rtl8180_tx_ring *ring; | |
240 | struct rtl8180_tx_desc *entry; | |
241 | unsigned long flags; | |
242 | unsigned int idx, prio; | |
243 | dma_addr_t mapping; | |
244 | u32 tx_flags; | |
e6a9854b | 245 | u8 rc_flags; |
f6532111 MW |
246 | u16 plcp_len = 0; |
247 | __le16 rts_duration = 0; | |
248 | ||
e2530083 | 249 | prio = skb_get_queue_mapping(skb); |
f6532111 MW |
250 | ring = &priv->tx_ring[prio]; |
251 | ||
252 | mapping = pci_map_single(priv->pdev, skb->data, | |
253 | skb->len, PCI_DMA_TODEVICE); | |
254 | ||
38e3b0d8 HRK |
255 | tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS | |
256 | RTL818X_TX_DESC_FLAG_LS | | |
e039fa4a | 257 | (ieee80211_get_tx_rate(dev, info)->hw_value << 24) | |
2e92e6f2 | 258 | skb->len; |
f6532111 MW |
259 | |
260 | if (priv->r8185) | |
38e3b0d8 HRK |
261 | tx_flags |= RTL818X_TX_DESC_FLAG_DMA | |
262 | RTL818X_TX_DESC_FLAG_NO_ENC; | |
f6532111 | 263 | |
e6a9854b JB |
264 | rc_flags = info->control.rates[0].flags; |
265 | if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { | |
38e3b0d8 | 266 | tx_flags |= RTL818X_TX_DESC_FLAG_RTS; |
e039fa4a | 267 | tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; |
e6a9854b | 268 | } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { |
38e3b0d8 | 269 | tx_flags |= RTL818X_TX_DESC_FLAG_CTS; |
e039fa4a | 270 | tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; |
aa68cbfb | 271 | } |
f6532111 | 272 | |
e6a9854b | 273 | if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) |
32bfd35d | 274 | rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len, |
e039fa4a | 275 | info); |
f6532111 MW |
276 | |
277 | if (!priv->r8185) { | |
278 | unsigned int remainder; | |
279 | ||
280 | plcp_len = DIV_ROUND_UP(16 * (skb->len + 4), | |
e039fa4a | 281 | (ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10); |
f6532111 | 282 | remainder = (16 * (skb->len + 4)) % |
e039fa4a | 283 | ((ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10); |
35a0ace7 | 284 | if (remainder <= 6) |
f6532111 MW |
285 | plcp_len |= 1 << 15; |
286 | } | |
287 | ||
288 | spin_lock_irqsave(&priv->lock, flags); | |
51e080de JL |
289 | |
290 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
291 | if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) | |
292 | priv->seqno += 0x10; | |
293 | hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); | |
294 | hdr->seq_ctrl |= cpu_to_le16(priv->seqno); | |
295 | } | |
296 | ||
f6532111 MW |
297 | idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries; |
298 | entry = &ring->desc[idx]; | |
299 | ||
300 | entry->rts_duration = rts_duration; | |
301 | entry->plcp_len = cpu_to_le16(plcp_len); | |
302 | entry->tx_buf = cpu_to_le32(mapping); | |
303 | entry->frame_len = cpu_to_le32(skb->len); | |
e6a9854b | 304 | entry->flags2 = info->control.rates[1].idx >= 0 ? |
870abdf6 | 305 | ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0; |
e6a9854b | 306 | entry->retry_limit = info->control.rates[0].count; |
f6532111 MW |
307 | entry->flags = cpu_to_le32(tx_flags); |
308 | __skb_queue_tail(&ring->queue, skb); | |
309 | if (ring->entries - skb_queue_len(&ring->queue) < 2) | |
d10e2e02 | 310 | ieee80211_stop_queue(dev, prio); |
51e080de | 311 | |
f6532111 MW |
312 | spin_unlock_irqrestore(&priv->lock, flags); |
313 | ||
314 | rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4))); | |
315 | ||
316 | return 0; | |
317 | } | |
318 | ||
319 | void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam) | |
320 | { | |
321 | u8 reg; | |
322 | ||
323 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
324 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); | |
325 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, | |
326 | reg | RTL818X_CONFIG3_ANAPARAM_WRITE); | |
327 | rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam); | |
328 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, | |
329 | reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE); | |
330 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
331 | } | |
332 | ||
333 | static int rtl8180_init_hw(struct ieee80211_hw *dev) | |
334 | { | |
335 | struct rtl8180_priv *priv = dev->priv; | |
336 | u16 reg; | |
337 | ||
338 | rtl818x_iowrite8(priv, &priv->map->CMD, 0); | |
339 | rtl818x_ioread8(priv, &priv->map->CMD); | |
340 | msleep(10); | |
341 | ||
342 | /* reset */ | |
343 | rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); | |
344 | rtl818x_ioread8(priv, &priv->map->CMD); | |
345 | ||
346 | reg = rtl818x_ioread8(priv, &priv->map->CMD); | |
347 | reg &= (1 << 1); | |
348 | reg |= RTL818X_CMD_RESET; | |
349 | rtl818x_iowrite8(priv, &priv->map->CMD, RTL818X_CMD_RESET); | |
350 | rtl818x_ioread8(priv, &priv->map->CMD); | |
351 | msleep(200); | |
352 | ||
353 | /* check success of reset */ | |
354 | if (rtl818x_ioread8(priv, &priv->map->CMD) & RTL818X_CMD_RESET) { | |
355 | printk(KERN_ERR "%s: reset timeout!\n", wiphy_name(dev->wiphy)); | |
356 | return -ETIMEDOUT; | |
357 | } | |
358 | ||
359 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD); | |
360 | rtl818x_ioread8(priv, &priv->map->CMD); | |
361 | msleep(200); | |
362 | ||
363 | if (rtl818x_ioread8(priv, &priv->map->CONFIG3) & (1 << 3)) { | |
364 | /* For cardbus */ | |
365 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); | |
366 | reg |= 1 << 1; | |
367 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg); | |
368 | reg = rtl818x_ioread16(priv, &priv->map->FEMR); | |
369 | reg |= (1 << 15) | (1 << 14) | (1 << 4); | |
370 | rtl818x_iowrite16(priv, &priv->map->FEMR, reg); | |
371 | } | |
372 | ||
373 | rtl818x_iowrite8(priv, &priv->map->MSR, 0); | |
374 | ||
375 | if (!priv->r8185) | |
376 | rtl8180_set_anaparam(priv, priv->anaparam); | |
377 | ||
378 | rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma); | |
379 | rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma); | |
380 | rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma); | |
381 | rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma); | |
382 | rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma); | |
383 | ||
384 | /* TODO: necessary? specs indicate not */ | |
385 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
386 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG2); | |
387 | rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg & ~(1 << 3)); | |
388 | if (priv->r8185) { | |
389 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG2); | |
390 | rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg | (1 << 4)); | |
391 | } | |
392 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
393 | ||
394 | /* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */ | |
395 | ||
396 | /* TODO: turn off hw wep on rtl8180 */ | |
397 | ||
398 | rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0); | |
399 | ||
400 | if (priv->r8185) { | |
401 | rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0); | |
402 | rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81); | |
403 | rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0); | |
404 | ||
405 | rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); | |
406 | ||
407 | /* TODO: set ClkRun enable? necessary? */ | |
408 | reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE); | |
409 | rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6)); | |
410 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
411 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); | |
412 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2)); | |
413 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
414 | } else { | |
415 | rtl818x_iowrite16(priv, &priv->map->BRSR, 0x1); | |
416 | rtl818x_iowrite8(priv, &priv->map->SECURITY, 0); | |
417 | ||
418 | rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6); | |
419 | rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C); | |
420 | } | |
421 | ||
422 | priv->rf->init(dev); | |
423 | if (priv->r8185) | |
424 | rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); | |
425 | return 0; | |
426 | } | |
427 | ||
428 | static int rtl8180_init_rx_ring(struct ieee80211_hw *dev) | |
429 | { | |
430 | struct rtl8180_priv *priv = dev->priv; | |
431 | struct rtl8180_rx_desc *entry; | |
432 | int i; | |
433 | ||
434 | priv->rx_ring = pci_alloc_consistent(priv->pdev, | |
435 | sizeof(*priv->rx_ring) * 32, | |
436 | &priv->rx_ring_dma); | |
437 | ||
438 | if (!priv->rx_ring || (unsigned long)priv->rx_ring & 0xFF) { | |
439 | printk(KERN_ERR "%s: Cannot allocate RX ring\n", | |
440 | wiphy_name(dev->wiphy)); | |
441 | return -ENOMEM; | |
442 | } | |
443 | ||
444 | memset(priv->rx_ring, 0, sizeof(*priv->rx_ring) * 32); | |
445 | priv->rx_idx = 0; | |
446 | ||
447 | for (i = 0; i < 32; i++) { | |
448 | struct sk_buff *skb = dev_alloc_skb(MAX_RX_SIZE); | |
449 | dma_addr_t *mapping; | |
450 | entry = &priv->rx_ring[i]; | |
451 | if (!skb) | |
452 | return 0; | |
453 | ||
454 | priv->rx_buf[i] = skb; | |
455 | mapping = (dma_addr_t *)skb->cb; | |
456 | *mapping = pci_map_single(priv->pdev, skb_tail_pointer(skb), | |
457 | MAX_RX_SIZE, PCI_DMA_FROMDEVICE); | |
458 | entry->rx_buf = cpu_to_le32(*mapping); | |
38e3b0d8 | 459 | entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN | |
f6532111 MW |
460 | MAX_RX_SIZE); |
461 | } | |
38e3b0d8 | 462 | entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR); |
f6532111 MW |
463 | return 0; |
464 | } | |
465 | ||
466 | static void rtl8180_free_rx_ring(struct ieee80211_hw *dev) | |
467 | { | |
468 | struct rtl8180_priv *priv = dev->priv; | |
469 | int i; | |
470 | ||
471 | for (i = 0; i < 32; i++) { | |
472 | struct sk_buff *skb = priv->rx_buf[i]; | |
473 | if (!skb) | |
474 | continue; | |
475 | ||
476 | pci_unmap_single(priv->pdev, | |
477 | *((dma_addr_t *)skb->cb), | |
478 | MAX_RX_SIZE, PCI_DMA_FROMDEVICE); | |
479 | kfree_skb(skb); | |
480 | } | |
481 | ||
482 | pci_free_consistent(priv->pdev, sizeof(*priv->rx_ring) * 32, | |
483 | priv->rx_ring, priv->rx_ring_dma); | |
484 | priv->rx_ring = NULL; | |
485 | } | |
486 | ||
487 | static int rtl8180_init_tx_ring(struct ieee80211_hw *dev, | |
488 | unsigned int prio, unsigned int entries) | |
489 | { | |
490 | struct rtl8180_priv *priv = dev->priv; | |
491 | struct rtl8180_tx_desc *ring; | |
492 | dma_addr_t dma; | |
493 | int i; | |
494 | ||
495 | ring = pci_alloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma); | |
496 | if (!ring || (unsigned long)ring & 0xFF) { | |
497 | printk(KERN_ERR "%s: Cannot allocate TX ring (prio = %d)\n", | |
498 | wiphy_name(dev->wiphy), prio); | |
499 | return -ENOMEM; | |
500 | } | |
501 | ||
502 | memset(ring, 0, sizeof(*ring)*entries); | |
503 | priv->tx_ring[prio].desc = ring; | |
504 | priv->tx_ring[prio].dma = dma; | |
505 | priv->tx_ring[prio].idx = 0; | |
506 | priv->tx_ring[prio].entries = entries; | |
507 | skb_queue_head_init(&priv->tx_ring[prio].queue); | |
508 | ||
509 | for (i = 0; i < entries; i++) | |
510 | ring[i].next_tx_desc = | |
511 | cpu_to_le32((u32)dma + ((i + 1) % entries) * sizeof(*ring)); | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
516 | static void rtl8180_free_tx_ring(struct ieee80211_hw *dev, unsigned int prio) | |
517 | { | |
518 | struct rtl8180_priv *priv = dev->priv; | |
519 | struct rtl8180_tx_ring *ring = &priv->tx_ring[prio]; | |
520 | ||
521 | while (skb_queue_len(&ring->queue)) { | |
522 | struct rtl8180_tx_desc *entry = &ring->desc[ring->idx]; | |
523 | struct sk_buff *skb = __skb_dequeue(&ring->queue); | |
524 | ||
525 | pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf), | |
526 | skb->len, PCI_DMA_TODEVICE); | |
f6532111 MW |
527 | kfree_skb(skb); |
528 | ring->idx = (ring->idx + 1) % ring->entries; | |
529 | } | |
530 | ||
531 | pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries, | |
532 | ring->desc, ring->dma); | |
533 | ring->desc = NULL; | |
534 | } | |
535 | ||
536 | static int rtl8180_start(struct ieee80211_hw *dev) | |
537 | { | |
538 | struct rtl8180_priv *priv = dev->priv; | |
539 | int ret, i; | |
540 | u32 reg; | |
541 | ||
542 | ret = rtl8180_init_rx_ring(dev); | |
543 | if (ret) | |
544 | return ret; | |
545 | ||
546 | for (i = 0; i < 4; i++) | |
547 | if ((ret = rtl8180_init_tx_ring(dev, i, 16))) | |
548 | goto err_free_rings; | |
549 | ||
550 | ret = rtl8180_init_hw(dev); | |
551 | if (ret) | |
552 | goto err_free_rings; | |
553 | ||
554 | rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma); | |
555 | rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma); | |
556 | rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma); | |
557 | rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma); | |
558 | rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma); | |
559 | ||
ea31ba35 | 560 | ret = request_irq(priv->pdev->irq, rtl8180_interrupt, |
f6532111 MW |
561 | IRQF_SHARED, KBUILD_MODNAME, dev); |
562 | if (ret) { | |
563 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
564 | wiphy_name(dev->wiphy)); | |
565 | goto err_free_rings; | |
566 | } | |
567 | ||
568 | rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF); | |
569 | ||
570 | rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0); | |
571 | rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0); | |
572 | ||
573 | reg = RTL818X_RX_CONF_ONLYERLPKT | | |
574 | RTL818X_RX_CONF_RX_AUTORESETPHY | | |
575 | RTL818X_RX_CONF_MGMT | | |
576 | RTL818X_RX_CONF_DATA | | |
577 | (7 << 8 /* MAX RX DMA */) | | |
578 | RTL818X_RX_CONF_BROADCAST | | |
579 | RTL818X_RX_CONF_NICMAC; | |
580 | ||
581 | if (priv->r8185) | |
582 | reg |= RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2; | |
583 | else { | |
584 | reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE1) | |
585 | ? RTL818X_RX_CONF_CSDM1 : 0; | |
586 | reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE2) | |
587 | ? RTL818X_RX_CONF_CSDM2 : 0; | |
588 | } | |
589 | ||
590 | priv->rx_conf = reg; | |
591 | rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg); | |
592 | ||
593 | if (priv->r8185) { | |
594 | reg = rtl818x_ioread8(priv, &priv->map->CW_CONF); | |
595 | reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT; | |
596 | reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT; | |
597 | rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg); | |
598 | ||
599 | reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); | |
600 | reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT; | |
601 | reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT; | |
602 | reg |= RTL818X_TX_AGC_CTL_FEEDBACK_ANT; | |
603 | rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); | |
604 | ||
605 | /* disable early TX */ | |
606 | rtl818x_iowrite8(priv, (u8 __iomem *)priv->map + 0xec, 0x3f); | |
607 | } | |
608 | ||
609 | reg = rtl818x_ioread32(priv, &priv->map->TX_CONF); | |
610 | reg |= (6 << 21 /* MAX TX DMA */) | | |
611 | RTL818X_TX_CONF_NO_ICV; | |
612 | ||
613 | if (priv->r8185) | |
614 | reg &= ~RTL818X_TX_CONF_PROBE_DTS; | |
615 | else | |
616 | reg &= ~RTL818X_TX_CONF_HW_SEQNUM; | |
617 | ||
618 | /* different meaning, same value on both rtl8185 and rtl8180 */ | |
619 | reg &= ~RTL818X_TX_CONF_SAT_HWPLCP; | |
620 | ||
621 | rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg); | |
622 | ||
623 | reg = rtl818x_ioread8(priv, &priv->map->CMD); | |
624 | reg |= RTL818X_CMD_RX_ENABLE; | |
625 | reg |= RTL818X_CMD_TX_ENABLE; | |
626 | rtl818x_iowrite8(priv, &priv->map->CMD, reg); | |
627 | ||
f6532111 MW |
628 | return 0; |
629 | ||
630 | err_free_rings: | |
631 | rtl8180_free_rx_ring(dev); | |
632 | for (i = 0; i < 4; i++) | |
633 | if (priv->tx_ring[i].desc) | |
634 | rtl8180_free_tx_ring(dev, i); | |
635 | ||
636 | return ret; | |
637 | } | |
638 | ||
639 | static void rtl8180_stop(struct ieee80211_hw *dev) | |
640 | { | |
641 | struct rtl8180_priv *priv = dev->priv; | |
642 | u8 reg; | |
643 | int i; | |
644 | ||
f6532111 MW |
645 | rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); |
646 | ||
647 | reg = rtl818x_ioread8(priv, &priv->map->CMD); | |
648 | reg &= ~RTL818X_CMD_TX_ENABLE; | |
649 | reg &= ~RTL818X_CMD_RX_ENABLE; | |
650 | rtl818x_iowrite8(priv, &priv->map->CMD, reg); | |
651 | ||
652 | priv->rf->stop(dev); | |
653 | ||
654 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); | |
655 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG4); | |
656 | rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF); | |
657 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
658 | ||
659 | free_irq(priv->pdev->irq, dev); | |
660 | ||
661 | rtl8180_free_rx_ring(dev); | |
662 | for (i = 0; i < 4; i++) | |
663 | rtl8180_free_tx_ring(dev, i); | |
664 | } | |
665 | ||
c809e86c JL |
666 | static u64 rtl8180_get_tsf(struct ieee80211_hw *dev) |
667 | { | |
668 | struct rtl8180_priv *priv = dev->priv; | |
669 | ||
670 | return rtl818x_ioread32(priv, &priv->map->TSFT[0]) | | |
671 | (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32; | |
672 | } | |
673 | ||
a3275e24 | 674 | static void rtl8180_beacon_work(struct work_struct *work) |
c809e86c JL |
675 | { |
676 | struct rtl8180_vif *vif_priv = | |
677 | container_of(work, struct rtl8180_vif, beacon_work.work); | |
678 | struct ieee80211_vif *vif = | |
679 | container_of((void *)vif_priv, struct ieee80211_vif, drv_priv); | |
680 | struct ieee80211_hw *dev = vif_priv->dev; | |
681 | struct ieee80211_mgmt *mgmt; | |
682 | struct sk_buff *skb; | |
683 | int err = 0; | |
684 | ||
685 | /* don't overflow the tx ring */ | |
686 | if (ieee80211_queue_stopped(dev, 0)) | |
687 | goto resched; | |
688 | ||
689 | /* grab a fresh beacon */ | |
690 | skb = ieee80211_beacon_get(dev, vif); | |
691 | ||
692 | /* | |
693 | * update beacon timestamp w/ TSF value | |
694 | * TODO: make hardware update beacon timestamp | |
695 | */ | |
696 | mgmt = (struct ieee80211_mgmt *)skb->data; | |
697 | mgmt->u.beacon.timestamp = cpu_to_le64(rtl8180_get_tsf(dev)); | |
698 | ||
699 | /* TODO: use actual beacon queue */ | |
700 | skb_set_queue_mapping(skb, 0); | |
701 | ||
702 | err = rtl8180_tx(dev, skb); | |
703 | WARN_ON(err); | |
704 | ||
705 | resched: | |
706 | /* | |
707 | * schedule next beacon | |
708 | * TODO: use hardware support for beacon timing | |
709 | */ | |
710 | schedule_delayed_work(&vif_priv->beacon_work, | |
711 | usecs_to_jiffies(1024 * vif->bss_conf.beacon_int)); | |
712 | } | |
713 | ||
f6532111 | 714 | static int rtl8180_add_interface(struct ieee80211_hw *dev, |
1ed32e4f | 715 | struct ieee80211_vif *vif) |
f6532111 MW |
716 | { |
717 | struct rtl8180_priv *priv = dev->priv; | |
c809e86c | 718 | struct rtl8180_vif *vif_priv; |
f6532111 | 719 | |
643aab67 JL |
720 | /* |
721 | * We only support one active interface at a time. | |
722 | */ | |
723 | if (priv->vif) | |
724 | return -EBUSY; | |
f6532111 | 725 | |
1ed32e4f | 726 | switch (vif->type) { |
05c914fe | 727 | case NL80211_IFTYPE_STATION: |
c809e86c | 728 | case NL80211_IFTYPE_ADHOC: |
f6532111 MW |
729 | break; |
730 | default: | |
731 | return -EOPNOTSUPP; | |
732 | } | |
733 | ||
1ed32e4f | 734 | priv->vif = vif; |
32bfd35d | 735 | |
c809e86c JL |
736 | /* Initialize driver private area */ |
737 | vif_priv = (struct rtl8180_vif *)&vif->drv_priv; | |
738 | vif_priv->dev = dev; | |
739 | INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8180_beacon_work); | |
740 | vif_priv->enable_beacon = false; | |
741 | ||
f6532111 MW |
742 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); |
743 | rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->MAC[0], | |
1ed32e4f | 744 | le32_to_cpu(*(__le32 *)vif->addr)); |
f6532111 | 745 | rtl818x_iowrite16(priv, (__le16 __iomem *)&priv->map->MAC[4], |
1ed32e4f | 746 | le16_to_cpu(*(__le16 *)(vif->addr + 4))); |
f6532111 MW |
747 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
748 | ||
749 | return 0; | |
750 | } | |
751 | ||
752 | static void rtl8180_remove_interface(struct ieee80211_hw *dev, | |
1ed32e4f | 753 | struct ieee80211_vif *vif) |
f6532111 MW |
754 | { |
755 | struct rtl8180_priv *priv = dev->priv; | |
32bfd35d | 756 | priv->vif = NULL; |
f6532111 MW |
757 | } |
758 | ||
e8975581 | 759 | static int rtl8180_config(struct ieee80211_hw *dev, u32 changed) |
f6532111 MW |
760 | { |
761 | struct rtl8180_priv *priv = dev->priv; | |
e8975581 | 762 | struct ieee80211_conf *conf = &dev->conf; |
f6532111 MW |
763 | |
764 | priv->rf->set_chan(dev, conf); | |
765 | ||
766 | return 0; | |
767 | } | |
768 | ||
da81dede JL |
769 | static void rtl8180_bss_info_changed(struct ieee80211_hw *dev, |
770 | struct ieee80211_vif *vif, | |
771 | struct ieee80211_bss_conf *info, | |
772 | u32 changed) | |
773 | { | |
774 | struct rtl8180_priv *priv = dev->priv; | |
c809e86c | 775 | struct rtl8180_vif *vif_priv; |
2d0ddec5 JB |
776 | int i; |
777 | ||
c809e86c JL |
778 | vif_priv = (struct rtl8180_vif *)&vif->drv_priv; |
779 | ||
2d0ddec5 JB |
780 | if (changed & BSS_CHANGED_BSSID) { |
781 | for (i = 0; i < ETH_ALEN; i++) | |
782 | rtl818x_iowrite8(priv, &priv->map->BSSID[i], | |
783 | info->bssid[i]); | |
784 | ||
785 | if (is_valid_ether_addr(info->bssid)) | |
786 | rtl818x_iowrite8(priv, &priv->map->MSR, | |
787 | RTL818X_MSR_INFRA); | |
788 | else | |
789 | rtl818x_iowrite8(priv, &priv->map->MSR, | |
790 | RTL818X_MSR_NO_LINK); | |
791 | } | |
da81dede JL |
792 | |
793 | if (changed & BSS_CHANGED_ERP_SLOT && priv->rf->conf_erp) | |
c809e86c JL |
794 | priv->rf->conf_erp(dev, info); |
795 | ||
796 | if (changed & BSS_CHANGED_BEACON_ENABLED) | |
797 | vif_priv->enable_beacon = info->enable_beacon; | |
798 | ||
799 | if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) { | |
800 | cancel_delayed_work_sync(&vif_priv->beacon_work); | |
801 | if (vif_priv->enable_beacon) | |
802 | schedule_work(&vif_priv->beacon_work.work); | |
803 | } | |
da81dede JL |
804 | } |
805 | ||
22bedad3 JP |
806 | static u64 rtl8180_prepare_multicast(struct ieee80211_hw *dev, |
807 | struct netdev_hw_addr_list *mc_list) | |
3ac64bee | 808 | { |
22bedad3 | 809 | return netdev_hw_addr_list_count(mc_list); |
3ac64bee JB |
810 | } |
811 | ||
f6532111 MW |
812 | static void rtl8180_configure_filter(struct ieee80211_hw *dev, |
813 | unsigned int changed_flags, | |
814 | unsigned int *total_flags, | |
3ac64bee | 815 | u64 multicast) |
f6532111 MW |
816 | { |
817 | struct rtl8180_priv *priv = dev->priv; | |
818 | ||
819 | if (changed_flags & FIF_FCSFAIL) | |
820 | priv->rx_conf ^= RTL818X_RX_CONF_FCS; | |
821 | if (changed_flags & FIF_CONTROL) | |
822 | priv->rx_conf ^= RTL818X_RX_CONF_CTRL; | |
823 | if (changed_flags & FIF_OTHER_BSS) | |
824 | priv->rx_conf ^= RTL818X_RX_CONF_MONITOR; | |
3ac64bee | 825 | if (*total_flags & FIF_ALLMULTI || multicast > 0) |
f6532111 MW |
826 | priv->rx_conf |= RTL818X_RX_CONF_MULTICAST; |
827 | else | |
828 | priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST; | |
829 | ||
830 | *total_flags = 0; | |
831 | ||
832 | if (priv->rx_conf & RTL818X_RX_CONF_FCS) | |
833 | *total_flags |= FIF_FCSFAIL; | |
834 | if (priv->rx_conf & RTL818X_RX_CONF_CTRL) | |
835 | *total_flags |= FIF_CONTROL; | |
836 | if (priv->rx_conf & RTL818X_RX_CONF_MONITOR) | |
837 | *total_flags |= FIF_OTHER_BSS; | |
838 | if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST) | |
839 | *total_flags |= FIF_ALLMULTI; | |
840 | ||
841 | rtl818x_iowrite32(priv, &priv->map->RX_CONF, priv->rx_conf); | |
842 | } | |
843 | ||
844 | static const struct ieee80211_ops rtl8180_ops = { | |
845 | .tx = rtl8180_tx, | |
846 | .start = rtl8180_start, | |
847 | .stop = rtl8180_stop, | |
848 | .add_interface = rtl8180_add_interface, | |
849 | .remove_interface = rtl8180_remove_interface, | |
850 | .config = rtl8180_config, | |
da81dede | 851 | .bss_info_changed = rtl8180_bss_info_changed, |
3ac64bee | 852 | .prepare_multicast = rtl8180_prepare_multicast, |
f6532111 | 853 | .configure_filter = rtl8180_configure_filter, |
d2bb8e02 | 854 | .get_tsf = rtl8180_get_tsf, |
f6532111 MW |
855 | }; |
856 | ||
857 | static void rtl8180_eeprom_register_read(struct eeprom_93cx6 *eeprom) | |
858 | { | |
859 | struct ieee80211_hw *dev = eeprom->data; | |
860 | struct rtl8180_priv *priv = dev->priv; | |
861 | u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD); | |
862 | ||
863 | eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE; | |
864 | eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ; | |
865 | eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK; | |
866 | eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS; | |
867 | } | |
868 | ||
869 | static void rtl8180_eeprom_register_write(struct eeprom_93cx6 *eeprom) | |
870 | { | |
871 | struct ieee80211_hw *dev = eeprom->data; | |
872 | struct rtl8180_priv *priv = dev->priv; | |
873 | u8 reg = 2 << 6; | |
874 | ||
875 | if (eeprom->reg_data_in) | |
876 | reg |= RTL818X_EEPROM_CMD_WRITE; | |
877 | if (eeprom->reg_data_out) | |
878 | reg |= RTL818X_EEPROM_CMD_READ; | |
879 | if (eeprom->reg_data_clock) | |
880 | reg |= RTL818X_EEPROM_CMD_CK; | |
881 | if (eeprom->reg_chip_select) | |
882 | reg |= RTL818X_EEPROM_CMD_CS; | |
883 | ||
884 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg); | |
885 | rtl818x_ioread8(priv, &priv->map->EEPROM_CMD); | |
886 | udelay(10); | |
887 | } | |
888 | ||
889 | static int __devinit rtl8180_probe(struct pci_dev *pdev, | |
890 | const struct pci_device_id *id) | |
891 | { | |
892 | struct ieee80211_hw *dev; | |
893 | struct rtl8180_priv *priv; | |
894 | unsigned long mem_addr, mem_len; | |
895 | unsigned int io_addr, io_len; | |
896 | int err, i; | |
897 | struct eeprom_93cx6 eeprom; | |
898 | const char *chip_name, *rf_name = NULL; | |
899 | u32 reg; | |
900 | u16 eeprom_val; | |
c693bf90 | 901 | u8 mac_addr[ETH_ALEN]; |
f6532111 MW |
902 | |
903 | err = pci_enable_device(pdev); | |
904 | if (err) { | |
905 | printk(KERN_ERR "%s (rtl8180): Cannot enable new PCI device\n", | |
906 | pci_name(pdev)); | |
907 | return err; | |
908 | } | |
909 | ||
910 | err = pci_request_regions(pdev, KBUILD_MODNAME); | |
911 | if (err) { | |
912 | printk(KERN_ERR "%s (rtl8180): Cannot obtain PCI resources\n", | |
913 | pci_name(pdev)); | |
914 | return err; | |
915 | } | |
916 | ||
917 | io_addr = pci_resource_start(pdev, 0); | |
918 | io_len = pci_resource_len(pdev, 0); | |
919 | mem_addr = pci_resource_start(pdev, 1); | |
920 | mem_len = pci_resource_len(pdev, 1); | |
921 | ||
922 | if (mem_len < sizeof(struct rtl818x_csr) || | |
923 | io_len < sizeof(struct rtl818x_csr)) { | |
924 | printk(KERN_ERR "%s (rtl8180): Too short PCI resources\n", | |
925 | pci_name(pdev)); | |
926 | err = -ENOMEM; | |
927 | goto err_free_reg; | |
928 | } | |
929 | ||
9e385c56 JL |
930 | if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) || |
931 | (err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))) { | |
f6532111 MW |
932 | printk(KERN_ERR "%s (rtl8180): No suitable DMA available\n", |
933 | pci_name(pdev)); | |
934 | goto err_free_reg; | |
935 | } | |
936 | ||
937 | pci_set_master(pdev); | |
938 | ||
939 | dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8180_ops); | |
940 | if (!dev) { | |
941 | printk(KERN_ERR "%s (rtl8180): ieee80211 alloc failed\n", | |
942 | pci_name(pdev)); | |
943 | err = -ENOMEM; | |
944 | goto err_free_reg; | |
945 | } | |
946 | ||
947 | priv = dev->priv; | |
948 | priv->pdev = pdev; | |
949 | ||
e6a9854b | 950 | dev->max_rates = 2; |
f6532111 MW |
951 | SET_IEEE80211_DEV(dev, &pdev->dev); |
952 | pci_set_drvdata(pdev, dev); | |
953 | ||
954 | priv->map = pci_iomap(pdev, 1, mem_len); | |
955 | if (!priv->map) | |
956 | priv->map = pci_iomap(pdev, 0, io_len); | |
957 | ||
958 | if (!priv->map) { | |
959 | printk(KERN_ERR "%s (rtl8180): Cannot map device memory\n", | |
960 | pci_name(pdev)); | |
961 | goto err_free_dev; | |
962 | } | |
963 | ||
8318d78a JB |
964 | BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels)); |
965 | BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates)); | |
966 | ||
f6532111 MW |
967 | memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels)); |
968 | memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates)); | |
8318d78a JB |
969 | |
970 | priv->band.band = IEEE80211_BAND_2GHZ; | |
971 | priv->band.channels = priv->channels; | |
972 | priv->band.n_channels = ARRAY_SIZE(rtl818x_channels); | |
973 | priv->band.bitrates = priv->rates; | |
974 | priv->band.n_bitrates = 4; | |
975 | dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; | |
976 | ||
f6532111 | 977 | dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | |
566bfe5a BR |
978 | IEEE80211_HW_RX_INCLUDES_FCS | |
979 | IEEE80211_HW_SIGNAL_UNSPEC; | |
c809e86c JL |
980 | dev->vif_data_size = sizeof(struct rtl8180_vif); |
981 | dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
982 | BIT(NL80211_IFTYPE_ADHOC); | |
f6532111 | 983 | dev->queues = 1; |
566bfe5a | 984 | dev->max_signal = 65; |
f6532111 MW |
985 | |
986 | reg = rtl818x_ioread32(priv, &priv->map->TX_CONF); | |
987 | reg &= RTL818X_TX_CONF_HWVER_MASK; | |
988 | switch (reg) { | |
989 | case RTL818X_TX_CONF_R8180_ABCD: | |
990 | chip_name = "RTL8180"; | |
991 | break; | |
992 | case RTL818X_TX_CONF_R8180_F: | |
993 | chip_name = "RTL8180vF"; | |
994 | break; | |
995 | case RTL818X_TX_CONF_R8185_ABC: | |
996 | chip_name = "RTL8185"; | |
997 | break; | |
998 | case RTL818X_TX_CONF_R8185_D: | |
999 | chip_name = "RTL8185vD"; | |
1000 | break; | |
1001 | default: | |
1002 | printk(KERN_ERR "%s (rtl8180): Unknown chip! (0x%x)\n", | |
1003 | pci_name(pdev), reg >> 25); | |
1004 | goto err_iounmap; | |
1005 | } | |
1006 | ||
1007 | priv->r8185 = reg & RTL818X_TX_CONF_R8185_ABC; | |
1008 | if (priv->r8185) { | |
8318d78a | 1009 | priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates); |
f6532111 MW |
1010 | pci_try_set_mwi(pdev); |
1011 | } | |
1012 | ||
f6532111 MW |
1013 | eeprom.data = dev; |
1014 | eeprom.register_read = rtl8180_eeprom_register_read; | |
1015 | eeprom.register_write = rtl8180_eeprom_register_write; | |
1016 | if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6)) | |
1017 | eeprom.width = PCI_EEPROM_WIDTH_93C66; | |
1018 | else | |
1019 | eeprom.width = PCI_EEPROM_WIDTH_93C46; | |
1020 | ||
1021 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_PROGRAM); | |
1022 | rtl818x_ioread8(priv, &priv->map->EEPROM_CMD); | |
1023 | udelay(10); | |
1024 | ||
1025 | eeprom_93cx6_read(&eeprom, 0x06, &eeprom_val); | |
1026 | eeprom_val &= 0xFF; | |
1027 | switch (eeprom_val) { | |
1028 | case 1: rf_name = "Intersil"; | |
1029 | break; | |
1030 | case 2: rf_name = "RFMD"; | |
1031 | break; | |
1032 | case 3: priv->rf = &sa2400_rf_ops; | |
1033 | break; | |
1034 | case 4: priv->rf = &max2820_rf_ops; | |
1035 | break; | |
1036 | case 5: priv->rf = &grf5101_rf_ops; | |
1037 | break; | |
1038 | case 9: priv->rf = rtl8180_detect_rf(dev); | |
1039 | break; | |
1040 | case 10: | |
1041 | rf_name = "RTL8255"; | |
1042 | break; | |
1043 | default: | |
1044 | printk(KERN_ERR "%s (rtl8180): Unknown RF! (0x%x)\n", | |
1045 | pci_name(pdev), eeprom_val); | |
1046 | goto err_iounmap; | |
1047 | } | |
1048 | ||
1049 | if (!priv->rf) { | |
1050 | printk(KERN_ERR "%s (rtl8180): %s RF frontend not supported!\n", | |
1051 | pci_name(pdev), rf_name); | |
1052 | goto err_iounmap; | |
1053 | } | |
1054 | ||
1055 | eeprom_93cx6_read(&eeprom, 0x17, &eeprom_val); | |
1056 | priv->csthreshold = eeprom_val >> 8; | |
1057 | if (!priv->r8185) { | |
1058 | __le32 anaparam; | |
1059 | eeprom_93cx6_multiread(&eeprom, 0xD, (__le16 *)&anaparam, 2); | |
1060 | priv->anaparam = le32_to_cpu(anaparam); | |
1061 | eeprom_93cx6_read(&eeprom, 0x19, &priv->rfparam); | |
1062 | } | |
1063 | ||
c693bf90 JL |
1064 | eeprom_93cx6_multiread(&eeprom, 0x7, (__le16 *)mac_addr, 3); |
1065 | if (!is_valid_ether_addr(mac_addr)) { | |
f6532111 MW |
1066 | printk(KERN_WARNING "%s (rtl8180): Invalid hwaddr! Using" |
1067 | " randomly generated MAC addr\n", pci_name(pdev)); | |
c693bf90 | 1068 | random_ether_addr(mac_addr); |
f6532111 | 1069 | } |
c693bf90 | 1070 | SET_IEEE80211_PERM_ADDR(dev, mac_addr); |
f6532111 MW |
1071 | |
1072 | /* CCK TX power */ | |
1073 | for (i = 0; i < 14; i += 2) { | |
1074 | u16 txpwr; | |
1075 | eeprom_93cx6_read(&eeprom, 0x10 + (i >> 1), &txpwr); | |
8318d78a JB |
1076 | priv->channels[i].hw_value = txpwr & 0xFF; |
1077 | priv->channels[i + 1].hw_value = txpwr >> 8; | |
f6532111 MW |
1078 | } |
1079 | ||
1080 | /* OFDM TX power */ | |
1081 | if (priv->r8185) { | |
1082 | for (i = 0; i < 14; i += 2) { | |
1083 | u16 txpwr; | |
1084 | eeprom_93cx6_read(&eeprom, 0x20 + (i >> 1), &txpwr); | |
8318d78a JB |
1085 | priv->channels[i].hw_value |= (txpwr & 0xFF) << 8; |
1086 | priv->channels[i + 1].hw_value |= txpwr & 0xFF00; | |
f6532111 MW |
1087 | } |
1088 | } | |
1089 | ||
1090 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); | |
1091 | ||
1092 | spin_lock_init(&priv->lock); | |
1093 | ||
1094 | err = ieee80211_register_hw(dev); | |
1095 | if (err) { | |
1096 | printk(KERN_ERR "%s (rtl8180): Cannot register device\n", | |
1097 | pci_name(pdev)); | |
1098 | goto err_iounmap; | |
1099 | } | |
1100 | ||
e174961c | 1101 | printk(KERN_INFO "%s: hwaddr %pM, %s + %s\n", |
c693bf90 | 1102 | wiphy_name(dev->wiphy), mac_addr, |
f6532111 MW |
1103 | chip_name, priv->rf->name); |
1104 | ||
1105 | return 0; | |
1106 | ||
1107 | err_iounmap: | |
1108 | iounmap(priv->map); | |
1109 | ||
1110 | err_free_dev: | |
1111 | pci_set_drvdata(pdev, NULL); | |
1112 | ieee80211_free_hw(dev); | |
1113 | ||
1114 | err_free_reg: | |
1115 | pci_release_regions(pdev); | |
1116 | pci_disable_device(pdev); | |
1117 | return err; | |
1118 | } | |
1119 | ||
1120 | static void __devexit rtl8180_remove(struct pci_dev *pdev) | |
1121 | { | |
1122 | struct ieee80211_hw *dev = pci_get_drvdata(pdev); | |
1123 | struct rtl8180_priv *priv; | |
1124 | ||
1125 | if (!dev) | |
1126 | return; | |
1127 | ||
1128 | ieee80211_unregister_hw(dev); | |
1129 | ||
1130 | priv = dev->priv; | |
1131 | ||
1132 | pci_iounmap(pdev, priv->map); | |
1133 | pci_release_regions(pdev); | |
1134 | pci_disable_device(pdev); | |
1135 | ieee80211_free_hw(dev); | |
1136 | } | |
1137 | ||
1138 | #ifdef CONFIG_PM | |
1139 | static int rtl8180_suspend(struct pci_dev *pdev, pm_message_t state) | |
1140 | { | |
1141 | pci_save_state(pdev); | |
1142 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | static int rtl8180_resume(struct pci_dev *pdev) | |
1147 | { | |
1148 | pci_set_power_state(pdev, PCI_D0); | |
1149 | pci_restore_state(pdev); | |
1150 | return 0; | |
1151 | } | |
1152 | ||
1153 | #endif /* CONFIG_PM */ | |
1154 | ||
1155 | static struct pci_driver rtl8180_driver = { | |
1156 | .name = KBUILD_MODNAME, | |
1157 | .id_table = rtl8180_table, | |
1158 | .probe = rtl8180_probe, | |
1159 | .remove = __devexit_p(rtl8180_remove), | |
1160 | #ifdef CONFIG_PM | |
1161 | .suspend = rtl8180_suspend, | |
1162 | .resume = rtl8180_resume, | |
1163 | #endif /* CONFIG_PM */ | |
1164 | }; | |
1165 | ||
1166 | static int __init rtl8180_init(void) | |
1167 | { | |
1168 | return pci_register_driver(&rtl8180_driver); | |
1169 | } | |
1170 | ||
1171 | static void __exit rtl8180_exit(void) | |
1172 | { | |
1173 | pci_unregister_driver(&rtl8180_driver); | |
1174 | } | |
1175 | ||
1176 | module_init(rtl8180_init); | |
1177 | module_exit(rtl8180_exit); |