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Commit | Line | Data |
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eff1a59c MW |
1 | |
2 | /* | |
3 | * Linux device driver for PCI based Prism54 | |
4 | * | |
5 | * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> | |
7262d593 | 6 | * Copyright (c) 2008, Christian Lamparter <chunkeey@web.de> |
eff1a59c MW |
7 | * |
8 | * Based on the islsm (softmac prism54) driver, which is: | |
9 | * Copyright 2004-2006 Jean-Baptiste Note <jean-baptiste.note@m4x.org>, et al. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
16 | #include <linux/init.h> | |
17 | #include <linux/pci.h> | |
5a0e3ad6 | 18 | #include <linux/slab.h> |
eff1a59c MW |
19 | #include <linux/firmware.h> |
20 | #include <linux/etherdevice.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/completion.h> | |
23 | #include <net/mac80211.h> | |
24 | ||
25 | #include "p54.h" | |
d8c92107 | 26 | #include "lmac.h" |
eff1a59c MW |
27 | #include "p54pci.h" |
28 | ||
29 | MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); | |
30 | MODULE_DESCRIPTION("Prism54 PCI wireless driver"); | |
31 | MODULE_LICENSE("GPL"); | |
32 | MODULE_ALIAS("prism54pci"); | |
9a8675d7 | 33 | MODULE_FIRMWARE("isl3886pci"); |
eff1a59c | 34 | |
a3aa1884 | 35 | static DEFINE_PCI_DEVICE_TABLE(p54p_table) = { |
eff1a59c MW |
36 | /* Intersil PRISM Duette/Prism GT Wireless LAN adapter */ |
37 | { PCI_DEVICE(0x1260, 0x3890) }, | |
38 | /* 3COM 3CRWE154G72 Wireless LAN adapter */ | |
39 | { PCI_DEVICE(0x10b7, 0x6001) }, | |
40 | /* Intersil PRISM Indigo Wireless LAN adapter */ | |
41 | { PCI_DEVICE(0x1260, 0x3877) }, | |
42 | /* Intersil PRISM Javelin/Xbow Wireless LAN adapter */ | |
43 | { PCI_DEVICE(0x1260, 0x3886) }, | |
50900f16 JA |
44 | /* Intersil PRISM Xbow Wireless LAN adapter (Symbol AP-300) */ |
45 | { PCI_DEVICE(0x1260, 0xffff) }, | |
90f4dd0f | 46 | { }, |
eff1a59c MW |
47 | }; |
48 | ||
49 | MODULE_DEVICE_TABLE(pci, p54p_table); | |
50 | ||
51 | static int p54p_upload_firmware(struct ieee80211_hw *dev) | |
52 | { | |
53 | struct p54p_priv *priv = dev->priv; | |
eff1a59c MW |
54 | __le32 reg; |
55 | int err; | |
8160c031 | 56 | __le32 *data; |
eff1a59c MW |
57 | u32 remains, left, device_addr; |
58 | ||
8160c031 | 59 | P54P_WRITE(int_enable, cpu_to_le32(0)); |
eff1a59c MW |
60 | P54P_READ(int_enable); |
61 | udelay(10); | |
62 | ||
63 | reg = P54P_READ(ctrl_stat); | |
64 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
65 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT); | |
66 | P54P_WRITE(ctrl_stat, reg); | |
67 | P54P_READ(ctrl_stat); | |
68 | udelay(10); | |
69 | ||
70 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); | |
71 | P54P_WRITE(ctrl_stat, reg); | |
72 | wmb(); | |
73 | udelay(10); | |
74 | ||
75 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
76 | P54P_WRITE(ctrl_stat, reg); | |
77 | wmb(); | |
78 | ||
40db0b22 CL |
79 | /* wait for the firmware to reset properly */ |
80 | mdelay(10); | |
eff1a59c | 81 | |
40db0b22 CL |
82 | err = p54_parse_firmware(dev, priv->firmware); |
83 | if (err) | |
4e416a6f | 84 | return err; |
eff1a59c | 85 | |
e365f160 CL |
86 | if (priv->common.fw_interface != FW_LM86) { |
87 | dev_err(&priv->pdev->dev, "wrong firmware, " | |
88 | "please get a LM86(PCI) firmware a try again.\n"); | |
89 | return -EINVAL; | |
90 | } | |
91 | ||
40db0b22 CL |
92 | data = (__le32 *) priv->firmware->data; |
93 | remains = priv->firmware->size; | |
eff1a59c MW |
94 | device_addr = ISL38XX_DEV_FIRMWARE_ADDR; |
95 | while (remains) { | |
96 | u32 i = 0; | |
97 | left = min((u32)0x1000, remains); | |
98 | P54P_WRITE(direct_mem_base, cpu_to_le32(device_addr)); | |
99 | P54P_READ(int_enable); | |
100 | ||
101 | device_addr += 0x1000; | |
102 | while (i < left) { | |
103 | P54P_WRITE(direct_mem_win[i], *data++); | |
104 | i += sizeof(u32); | |
105 | } | |
106 | ||
107 | remains -= left; | |
108 | P54P_READ(int_enable); | |
109 | } | |
110 | ||
eff1a59c MW |
111 | reg = P54P_READ(ctrl_stat); |
112 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); | |
113 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
114 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT); | |
115 | P54P_WRITE(ctrl_stat, reg); | |
116 | P54P_READ(ctrl_stat); | |
117 | udelay(10); | |
118 | ||
119 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); | |
120 | P54P_WRITE(ctrl_stat, reg); | |
121 | wmb(); | |
122 | udelay(10); | |
123 | ||
124 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
125 | P54P_WRITE(ctrl_stat, reg); | |
126 | wmb(); | |
127 | udelay(10); | |
128 | ||
7cb77072 | 129 | /* wait for the firmware to boot properly */ |
eff1a59c | 130 | mdelay(100); |
eff1a59c | 131 | |
7cb77072 | 132 | return 0; |
eff1a59c MW |
133 | } |
134 | ||
7262d593 CL |
135 | static void p54p_refill_rx_ring(struct ieee80211_hw *dev, |
136 | int ring_index, struct p54p_desc *ring, u32 ring_limit, | |
5988f385 | 137 | struct sk_buff **rx_buf, u32 index) |
eff1a59c MW |
138 | { |
139 | struct p54p_priv *priv = dev->priv; | |
eb76bf29 | 140 | struct p54p_ring_control *ring_control = priv->ring_control; |
7262d593 | 141 | u32 limit, idx, i; |
eff1a59c | 142 | |
7262d593 CL |
143 | idx = le32_to_cpu(ring_control->host_idx[ring_index]); |
144 | limit = idx; | |
103823db | 145 | limit -= index; |
7262d593 | 146 | limit = ring_limit - limit; |
eff1a59c | 147 | |
7262d593 | 148 | i = idx % ring_limit; |
eff1a59c | 149 | while (limit-- > 1) { |
7262d593 | 150 | struct p54p_desc *desc = &ring[i]; |
eff1a59c MW |
151 | |
152 | if (!desc->host_addr) { | |
153 | struct sk_buff *skb; | |
154 | dma_addr_t mapping; | |
4e416a6f | 155 | skb = dev_alloc_skb(priv->common.rx_mtu + 32); |
eff1a59c MW |
156 | if (!skb) |
157 | break; | |
158 | ||
159 | mapping = pci_map_single(priv->pdev, | |
160 | skb_tail_pointer(skb), | |
4e416a6f | 161 | priv->common.rx_mtu + 32, |
eff1a59c | 162 | PCI_DMA_FROMDEVICE); |
288c8ce8 CL |
163 | |
164 | if (pci_dma_mapping_error(priv->pdev, mapping)) { | |
165 | dev_kfree_skb_any(skb); | |
166 | dev_err(&priv->pdev->dev, | |
167 | "RX DMA Mapping error\n"); | |
168 | break; | |
169 | } | |
170 | ||
eff1a59c MW |
171 | desc->host_addr = cpu_to_le32(mapping); |
172 | desc->device_addr = 0; // FIXME: necessary? | |
4e416a6f | 173 | desc->len = cpu_to_le16(priv->common.rx_mtu + 32); |
eff1a59c | 174 | desc->flags = 0; |
7262d593 | 175 | rx_buf[i] = skb; |
eff1a59c MW |
176 | } |
177 | ||
7262d593 | 178 | i++; |
eff1a59c | 179 | idx++; |
7262d593 | 180 | i %= ring_limit; |
eff1a59c MW |
181 | } |
182 | ||
183 | wmb(); | |
7262d593 CL |
184 | ring_control->host_idx[ring_index] = cpu_to_le32(idx); |
185 | } | |
186 | ||
187 | static void p54p_check_rx_ring(struct ieee80211_hw *dev, u32 *index, | |
188 | int ring_index, struct p54p_desc *ring, u32 ring_limit, | |
189 | struct sk_buff **rx_buf) | |
190 | { | |
191 | struct p54p_priv *priv = dev->priv; | |
192 | struct p54p_ring_control *ring_control = priv->ring_control; | |
193 | struct p54p_desc *desc; | |
194 | u32 idx, i; | |
195 | ||
196 | i = (*index) % ring_limit; | |
197 | (*index) = idx = le32_to_cpu(ring_control->device_idx[ring_index]); | |
198 | idx %= ring_limit; | |
199 | while (i != idx) { | |
200 | u16 len; | |
201 | struct sk_buff *skb; | |
0bf719df | 202 | dma_addr_t dma_addr; |
7262d593 CL |
203 | desc = &ring[i]; |
204 | len = le16_to_cpu(desc->len); | |
205 | skb = rx_buf[i]; | |
206 | ||
0c25970d CL |
207 | if (!skb) { |
208 | i++; | |
209 | i %= ring_limit; | |
7262d593 | 210 | continue; |
0c25970d | 211 | } |
f5300e04 CL |
212 | |
213 | if (unlikely(len > priv->common.rx_mtu)) { | |
214 | if (net_ratelimit()) | |
215 | dev_err(&priv->pdev->dev, "rx'd frame size " | |
216 | "exceeds length threshold.\n"); | |
217 | ||
218 | len = priv->common.rx_mtu; | |
219 | } | |
0bf719df CL |
220 | dma_addr = le32_to_cpu(desc->host_addr); |
221 | pci_dma_sync_single_for_cpu(priv->pdev, dma_addr, | |
222 | priv->common.rx_mtu + 32, PCI_DMA_FROMDEVICE); | |
7262d593 CL |
223 | skb_put(skb, len); |
224 | ||
225 | if (p54_rx(dev, skb)) { | |
0bf719df CL |
226 | pci_unmap_single(priv->pdev, dma_addr, |
227 | priv->common.rx_mtu + 32, PCI_DMA_FROMDEVICE); | |
7262d593 | 228 | rx_buf[i] = NULL; |
0bf719df | 229 | desc->host_addr = cpu_to_le32(0); |
7262d593 CL |
230 | } else { |
231 | skb_trim(skb, 0); | |
0bf719df CL |
232 | pci_dma_sync_single_for_device(priv->pdev, dma_addr, |
233 | priv->common.rx_mtu + 32, PCI_DMA_FROMDEVICE); | |
4e416a6f | 234 | desc->len = cpu_to_le16(priv->common.rx_mtu + 32); |
7262d593 CL |
235 | } |
236 | ||
237 | i++; | |
238 | i %= ring_limit; | |
239 | } | |
240 | ||
5988f385 | 241 | p54p_refill_rx_ring(dev, ring_index, ring, ring_limit, rx_buf, *index); |
7262d593 CL |
242 | } |
243 | ||
7262d593 CL |
244 | static void p54p_check_tx_ring(struct ieee80211_hw *dev, u32 *index, |
245 | int ring_index, struct p54p_desc *ring, u32 ring_limit, | |
d713804c | 246 | struct sk_buff **tx_buf) |
7262d593 CL |
247 | { |
248 | struct p54p_priv *priv = dev->priv; | |
249 | struct p54p_ring_control *ring_control = priv->ring_control; | |
250 | struct p54p_desc *desc; | |
d713804c | 251 | struct sk_buff *skb; |
7262d593 CL |
252 | u32 idx, i; |
253 | ||
254 | i = (*index) % ring_limit; | |
0250ecec | 255 | (*index) = idx = le32_to_cpu(ring_control->device_idx[ring_index]); |
7262d593 CL |
256 | idx %= ring_limit; |
257 | ||
258 | while (i != idx) { | |
259 | desc = &ring[i]; | |
d713804c CL |
260 | |
261 | skb = tx_buf[i]; | |
7262d593 CL |
262 | tx_buf[i] = NULL; |
263 | ||
264 | pci_unmap_single(priv->pdev, le32_to_cpu(desc->host_addr), | |
265 | le16_to_cpu(desc->len), PCI_DMA_TODEVICE); | |
266 | ||
267 | desc->host_addr = 0; | |
268 | desc->device_addr = 0; | |
269 | desc->len = 0; | |
270 | desc->flags = 0; | |
271 | ||
b92f7d30 | 272 | if (skb && FREE_AFTER_TX(skb)) |
d713804c | 273 | p54_free_skb(dev, skb); |
d713804c | 274 | |
7262d593 CL |
275 | i++; |
276 | i %= ring_limit; | |
277 | } | |
278 | } | |
279 | ||
d713804c | 280 | static void p54p_tasklet(unsigned long dev_id) |
7262d593 CL |
281 | { |
282 | struct ieee80211_hw *dev = (struct ieee80211_hw *)dev_id; | |
283 | struct p54p_priv *priv = dev->priv; | |
284 | struct p54p_ring_control *ring_control = priv->ring_control; | |
285 | ||
d4cde88c HG |
286 | p54p_check_tx_ring(dev, &priv->tx_idx_mgmt, 3, ring_control->tx_mgmt, |
287 | ARRAY_SIZE(ring_control->tx_mgmt), | |
288 | priv->tx_buf_mgmt); | |
289 | ||
290 | p54p_check_tx_ring(dev, &priv->tx_idx_data, 1, ring_control->tx_data, | |
291 | ARRAY_SIZE(ring_control->tx_data), | |
292 | priv->tx_buf_data); | |
293 | ||
7262d593 CL |
294 | p54p_check_rx_ring(dev, &priv->rx_idx_mgmt, 2, ring_control->rx_mgmt, |
295 | ARRAY_SIZE(ring_control->rx_mgmt), priv->rx_buf_mgmt); | |
296 | ||
297 | p54p_check_rx_ring(dev, &priv->rx_idx_data, 0, ring_control->rx_data, | |
298 | ARRAY_SIZE(ring_control->rx_data), priv->rx_buf_data); | |
299 | ||
300 | wmb(); | |
301 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE)); | |
eff1a59c MW |
302 | } |
303 | ||
304 | static irqreturn_t p54p_interrupt(int irq, void *dev_id) | |
305 | { | |
306 | struct ieee80211_hw *dev = dev_id; | |
307 | struct p54p_priv *priv = dev->priv; | |
308 | __le32 reg; | |
309 | ||
eff1a59c | 310 | reg = P54P_READ(int_ident); |
8160c031 | 311 | if (unlikely(reg == cpu_to_le32(0xFFFFFFFF))) { |
d713804c | 312 | goto out; |
eff1a59c | 313 | } |
eff1a59c MW |
314 | P54P_WRITE(int_ack, reg); |
315 | ||
316 | reg &= P54P_READ(int_enable); | |
317 | ||
d713804c CL |
318 | if (reg & cpu_to_le32(ISL38XX_INT_IDENT_UPDATE)) |
319 | tasklet_schedule(&priv->tasklet); | |
320 | else if (reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT)) | |
eff1a59c MW |
321 | complete(&priv->boot_comp); |
322 | ||
d713804c | 323 | out: |
eff1a59c MW |
324 | return reg ? IRQ_HANDLED : IRQ_NONE; |
325 | } | |
326 | ||
0a5ec96a | 327 | static void p54p_tx(struct ieee80211_hw *dev, struct sk_buff *skb) |
eff1a59c | 328 | { |
b92f7d30 | 329 | unsigned long flags; |
eff1a59c | 330 | struct p54p_priv *priv = dev->priv; |
eb76bf29 | 331 | struct p54p_ring_control *ring_control = priv->ring_control; |
eff1a59c MW |
332 | struct p54p_desc *desc; |
333 | dma_addr_t mapping; | |
334 | u32 device_idx, idx, i; | |
335 | ||
336 | spin_lock_irqsave(&priv->lock, flags); | |
eb76bf29 DT |
337 | device_idx = le32_to_cpu(ring_control->device_idx[1]); |
338 | idx = le32_to_cpu(ring_control->host_idx[1]); | |
339 | i = idx % ARRAY_SIZE(ring_control->tx_data); | |
eff1a59c | 340 | |
b92f30d6 CL |
341 | mapping = pci_map_single(priv->pdev, skb->data, skb->len, |
342 | PCI_DMA_TODEVICE); | |
288c8ce8 CL |
343 | if (pci_dma_mapping_error(priv->pdev, mapping)) { |
344 | spin_unlock_irqrestore(&priv->lock, flags); | |
345 | p54_free_skb(dev, skb); | |
346 | dev_err(&priv->pdev->dev, "TX DMA mapping error\n"); | |
347 | return ; | |
348 | } | |
349 | priv->tx_buf_data[i] = skb; | |
350 | ||
eb76bf29 | 351 | desc = &ring_control->tx_data[i]; |
eff1a59c | 352 | desc->host_addr = cpu_to_le32(mapping); |
27df605e | 353 | desc->device_addr = ((struct p54_hdr *)skb->data)->req_id; |
b92f30d6 | 354 | desc->len = cpu_to_le16(skb->len); |
eff1a59c MW |
355 | desc->flags = 0; |
356 | ||
357 | wmb(); | |
eb76bf29 | 358 | ring_control->host_idx[1] = cpu_to_le32(idx + 1); |
eff1a59c MW |
359 | spin_unlock_irqrestore(&priv->lock, flags); |
360 | ||
361 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE)); | |
362 | P54P_READ(dev_int); | |
eff1a59c MW |
363 | } |
364 | ||
eff1a59c MW |
365 | static void p54p_stop(struct ieee80211_hw *dev) |
366 | { | |
367 | struct p54p_priv *priv = dev->priv; | |
eb76bf29 | 368 | struct p54p_ring_control *ring_control = priv->ring_control; |
eff1a59c MW |
369 | unsigned int i; |
370 | struct p54p_desc *desc; | |
371 | ||
8160c031 | 372 | P54P_WRITE(int_enable, cpu_to_le32(0)); |
eff1a59c MW |
373 | P54P_READ(int_enable); |
374 | udelay(10); | |
375 | ||
376 | free_irq(priv->pdev->irq, dev); | |
377 | ||
b92f7d30 CL |
378 | tasklet_kill(&priv->tasklet); |
379 | ||
eff1a59c MW |
380 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET)); |
381 | ||
7262d593 | 382 | for (i = 0; i < ARRAY_SIZE(priv->rx_buf_data); i++) { |
eb76bf29 | 383 | desc = &ring_control->rx_data[i]; |
eff1a59c | 384 | if (desc->host_addr) |
7262d593 CL |
385 | pci_unmap_single(priv->pdev, |
386 | le32_to_cpu(desc->host_addr), | |
4e416a6f CL |
387 | priv->common.rx_mtu + 32, |
388 | PCI_DMA_FROMDEVICE); | |
7262d593 CL |
389 | kfree_skb(priv->rx_buf_data[i]); |
390 | priv->rx_buf_data[i] = NULL; | |
eff1a59c MW |
391 | } |
392 | ||
7262d593 CL |
393 | for (i = 0; i < ARRAY_SIZE(priv->rx_buf_mgmt); i++) { |
394 | desc = &ring_control->rx_mgmt[i]; | |
395 | if (desc->host_addr) | |
396 | pci_unmap_single(priv->pdev, | |
397 | le32_to_cpu(desc->host_addr), | |
4e416a6f CL |
398 | priv->common.rx_mtu + 32, |
399 | PCI_DMA_FROMDEVICE); | |
7262d593 CL |
400 | kfree_skb(priv->rx_buf_mgmt[i]); |
401 | priv->rx_buf_mgmt[i] = NULL; | |
402 | } | |
403 | ||
404 | for (i = 0; i < ARRAY_SIZE(priv->tx_buf_data); i++) { | |
eb76bf29 | 405 | desc = &ring_control->tx_data[i]; |
eff1a59c | 406 | if (desc->host_addr) |
7262d593 CL |
407 | pci_unmap_single(priv->pdev, |
408 | le32_to_cpu(desc->host_addr), | |
409 | le16_to_cpu(desc->len), | |
410 | PCI_DMA_TODEVICE); | |
411 | ||
b92f30d6 | 412 | p54_free_skb(dev, priv->tx_buf_data[i]); |
7262d593 CL |
413 | priv->tx_buf_data[i] = NULL; |
414 | } | |
415 | ||
416 | for (i = 0; i < ARRAY_SIZE(priv->tx_buf_mgmt); i++) { | |
417 | desc = &ring_control->tx_mgmt[i]; | |
418 | if (desc->host_addr) | |
419 | pci_unmap_single(priv->pdev, | |
420 | le32_to_cpu(desc->host_addr), | |
421 | le16_to_cpu(desc->len), | |
422 | PCI_DMA_TODEVICE); | |
eff1a59c | 423 | |
b92f30d6 | 424 | p54_free_skb(dev, priv->tx_buf_mgmt[i]); |
7262d593 | 425 | priv->tx_buf_mgmt[i] = NULL; |
eff1a59c MW |
426 | } |
427 | ||
7262d593 | 428 | memset(ring_control, 0, sizeof(*ring_control)); |
eff1a59c MW |
429 | } |
430 | ||
35961627 CL |
431 | static int p54p_open(struct ieee80211_hw *dev) |
432 | { | |
433 | struct p54p_priv *priv = dev->priv; | |
434 | int err; | |
435 | ||
436 | init_completion(&priv->boot_comp); | |
8fbd90b0 | 437 | err = request_irq(priv->pdev->irq, p54p_interrupt, |
35961627 CL |
438 | IRQF_SHARED, "p54pci", dev); |
439 | if (err) { | |
ad5e72ee | 440 | dev_err(&priv->pdev->dev, "failed to register IRQ handler\n"); |
35961627 CL |
441 | return err; |
442 | } | |
443 | ||
444 | memset(priv->ring_control, 0, sizeof(*priv->ring_control)); | |
445 | err = p54p_upload_firmware(dev); | |
446 | if (err) { | |
447 | free_irq(priv->pdev->irq, dev); | |
448 | return err; | |
449 | } | |
450 | priv->rx_idx_data = priv->tx_idx_data = 0; | |
451 | priv->rx_idx_mgmt = priv->tx_idx_mgmt = 0; | |
452 | ||
453 | p54p_refill_rx_ring(dev, 0, priv->ring_control->rx_data, | |
5988f385 | 454 | ARRAY_SIZE(priv->ring_control->rx_data), priv->rx_buf_data, 0); |
35961627 CL |
455 | |
456 | p54p_refill_rx_ring(dev, 2, priv->ring_control->rx_mgmt, | |
5988f385 | 457 | ARRAY_SIZE(priv->ring_control->rx_mgmt), priv->rx_buf_mgmt, 0); |
35961627 CL |
458 | |
459 | P54P_WRITE(ring_control_base, cpu_to_le32(priv->ring_control_dma)); | |
460 | P54P_READ(ring_control_base); | |
461 | wmb(); | |
462 | udelay(10); | |
463 | ||
464 | P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_INIT)); | |
465 | P54P_READ(int_enable); | |
466 | wmb(); | |
467 | udelay(10); | |
468 | ||
469 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET)); | |
470 | P54P_READ(dev_int); | |
471 | ||
472 | if (!wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ)) { | |
5db55844 | 473 | wiphy_err(dev->wiphy, "Cannot boot firmware!\n"); |
35961627 CL |
474 | p54p_stop(dev); |
475 | return -ETIMEDOUT; | |
476 | } | |
477 | ||
478 | P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_UPDATE)); | |
479 | P54P_READ(int_enable); | |
480 | wmb(); | |
481 | udelay(10); | |
482 | ||
483 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE)); | |
484 | P54P_READ(dev_int); | |
485 | wmb(); | |
486 | udelay(10); | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
eff1a59c MW |
491 | static int __devinit p54p_probe(struct pci_dev *pdev, |
492 | const struct pci_device_id *id) | |
493 | { | |
494 | struct p54p_priv *priv; | |
495 | struct ieee80211_hw *dev; | |
496 | unsigned long mem_addr, mem_len; | |
497 | int err; | |
eff1a59c MW |
498 | |
499 | err = pci_enable_device(pdev); | |
500 | if (err) { | |
ad5e72ee | 501 | dev_err(&pdev->dev, "Cannot enable new PCI device\n"); |
eff1a59c MW |
502 | return err; |
503 | } | |
504 | ||
505 | mem_addr = pci_resource_start(pdev, 0); | |
506 | mem_len = pci_resource_len(pdev, 0); | |
507 | if (mem_len < sizeof(struct p54p_csr)) { | |
ad5e72ee | 508 | dev_err(&pdev->dev, "Too short PCI resources\n"); |
40db0b22 | 509 | goto err_disable_dev; |
eff1a59c MW |
510 | } |
511 | ||
32ddf071 | 512 | err = pci_request_regions(pdev, "p54pci"); |
eff1a59c | 513 | if (err) { |
ad5e72ee | 514 | dev_err(&pdev->dev, "Cannot obtain PCI resources\n"); |
40db0b22 | 515 | goto err_disable_dev; |
eff1a59c MW |
516 | } |
517 | ||
e930438c YH |
518 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) || |
519 | pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) { | |
ad5e72ee | 520 | dev_err(&pdev->dev, "No suitable DMA available\n"); |
eff1a59c MW |
521 | goto err_free_reg; |
522 | } | |
523 | ||
524 | pci_set_master(pdev); | |
525 | pci_try_set_mwi(pdev); | |
526 | ||
527 | pci_write_config_byte(pdev, 0x40, 0); | |
528 | pci_write_config_byte(pdev, 0x41, 0); | |
529 | ||
530 | dev = p54_init_common(sizeof(*priv)); | |
531 | if (!dev) { | |
ad5e72ee | 532 | dev_err(&pdev->dev, "ieee80211 alloc failed\n"); |
eff1a59c MW |
533 | err = -ENOMEM; |
534 | goto err_free_reg; | |
535 | } | |
536 | ||
537 | priv = dev->priv; | |
538 | priv->pdev = pdev; | |
539 | ||
540 | SET_IEEE80211_DEV(dev, &pdev->dev); | |
541 | pci_set_drvdata(pdev, dev); | |
542 | ||
543 | priv->map = ioremap(mem_addr, mem_len); | |
544 | if (!priv->map) { | |
ad5e72ee CL |
545 | dev_err(&pdev->dev, "Cannot map device memory\n"); |
546 | err = -ENOMEM; | |
eff1a59c MW |
547 | goto err_free_dev; |
548 | } | |
549 | ||
550 | priv->ring_control = pci_alloc_consistent(pdev, sizeof(*priv->ring_control), | |
551 | &priv->ring_control_dma); | |
552 | if (!priv->ring_control) { | |
ad5e72ee | 553 | dev_err(&pdev->dev, "Cannot allocate rings\n"); |
eff1a59c MW |
554 | err = -ENOMEM; |
555 | goto err_iounmap; | |
556 | } | |
eff1a59c MW |
557 | priv->common.open = p54p_open; |
558 | priv->common.stop = p54p_stop; | |
559 | priv->common.tx = p54p_tx; | |
560 | ||
561 | spin_lock_init(&priv->lock); | |
d713804c | 562 | tasklet_init(&priv->tasklet, p54p_tasklet, (unsigned long)dev); |
eff1a59c | 563 | |
40db0b22 CL |
564 | err = request_firmware(&priv->firmware, "isl3886pci", |
565 | &priv->pdev->dev); | |
566 | if (err) { | |
ad5e72ee | 567 | dev_err(&pdev->dev, "Cannot find firmware (isl3886pci)\n"); |
40db0b22 CL |
568 | err = request_firmware(&priv->firmware, "isl3886", |
569 | &priv->pdev->dev); | |
570 | if (err) | |
571 | goto err_free_common; | |
572 | } | |
573 | ||
35961627 CL |
574 | err = p54p_open(dev); |
575 | if (err) | |
576 | goto err_free_common; | |
7cb77072 CL |
577 | err = p54_read_eeprom(dev); |
578 | p54p_stop(dev); | |
579 | if (err) | |
35961627 | 580 | goto err_free_common; |
7cb77072 | 581 | |
2ac71072 CL |
582 | err = p54_register_common(dev, &pdev->dev); |
583 | if (err) | |
eff1a59c | 584 | goto err_free_common; |
eff1a59c | 585 | |
eff1a59c MW |
586 | return 0; |
587 | ||
588 | err_free_common: | |
40db0b22 | 589 | release_firmware(priv->firmware); |
eff1a59c MW |
590 | pci_free_consistent(pdev, sizeof(*priv->ring_control), |
591 | priv->ring_control, priv->ring_control_dma); | |
592 | ||
593 | err_iounmap: | |
594 | iounmap(priv->map); | |
595 | ||
596 | err_free_dev: | |
597 | pci_set_drvdata(pdev, NULL); | |
d8c92107 | 598 | p54_free_common(dev); |
eff1a59c MW |
599 | |
600 | err_free_reg: | |
601 | pci_release_regions(pdev); | |
40db0b22 | 602 | err_disable_dev: |
eff1a59c MW |
603 | pci_disable_device(pdev); |
604 | return err; | |
605 | } | |
606 | ||
607 | static void __devexit p54p_remove(struct pci_dev *pdev) | |
608 | { | |
609 | struct ieee80211_hw *dev = pci_get_drvdata(pdev); | |
610 | struct p54p_priv *priv; | |
611 | ||
612 | if (!dev) | |
613 | return; | |
614 | ||
d8c92107 | 615 | p54_unregister_common(dev); |
eff1a59c | 616 | priv = dev->priv; |
40db0b22 | 617 | release_firmware(priv->firmware); |
eff1a59c MW |
618 | pci_free_consistent(pdev, sizeof(*priv->ring_control), |
619 | priv->ring_control, priv->ring_control_dma); | |
eff1a59c MW |
620 | iounmap(priv->map); |
621 | pci_release_regions(pdev); | |
622 | pci_disable_device(pdev); | |
d8c92107 | 623 | p54_free_common(dev); |
eff1a59c MW |
624 | } |
625 | ||
626 | #ifdef CONFIG_PM | |
627 | static int p54p_suspend(struct pci_dev *pdev, pm_message_t state) | |
628 | { | |
629 | struct ieee80211_hw *dev = pci_get_drvdata(pdev); | |
630 | struct p54p_priv *priv = dev->priv; | |
631 | ||
05c914fe | 632 | if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED) { |
eff1a59c MW |
633 | ieee80211_stop_queues(dev); |
634 | p54p_stop(dev); | |
635 | } | |
636 | ||
637 | pci_save_state(pdev); | |
638 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
639 | return 0; | |
640 | } | |
641 | ||
642 | static int p54p_resume(struct pci_dev *pdev) | |
643 | { | |
644 | struct ieee80211_hw *dev = pci_get_drvdata(pdev); | |
645 | struct p54p_priv *priv = dev->priv; | |
646 | ||
647 | pci_set_power_state(pdev, PCI_D0); | |
648 | pci_restore_state(pdev); | |
649 | ||
05c914fe | 650 | if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED) { |
eff1a59c | 651 | p54p_open(dev); |
36d6825b | 652 | ieee80211_wake_queues(dev); |
eff1a59c MW |
653 | } |
654 | ||
655 | return 0; | |
656 | } | |
657 | #endif /* CONFIG_PM */ | |
658 | ||
659 | static struct pci_driver p54p_driver = { | |
32ddf071 | 660 | .name = "p54pci", |
eff1a59c MW |
661 | .id_table = p54p_table, |
662 | .probe = p54p_probe, | |
663 | .remove = __devexit_p(p54p_remove), | |
664 | #ifdef CONFIG_PM | |
665 | .suspend = p54p_suspend, | |
666 | .resume = p54p_resume, | |
667 | #endif /* CONFIG_PM */ | |
668 | }; | |
669 | ||
670 | static int __init p54p_init(void) | |
671 | { | |
672 | return pci_register_driver(&p54p_driver); | |
673 | } | |
674 | ||
675 | static void __exit p54p_exit(void) | |
676 | { | |
677 | pci_unregister_driver(&p54p_driver); | |
678 | } | |
679 | ||
680 | module_init(p54p_init); | |
681 | module_exit(p54p_exit); |