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Merge branch 'upstream-fixes' into upstream
[deliverable/linux.git] / drivers / net / wireless / bcm43xx / bcm43xx_main.c
1 /*
2
3 Broadcom BCM43xx wireless driver
4
5 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
6 Stefano Brivio <st3@riseup.net>
7 Michael Buesch <mbuesch@freenet.de>
8 Danny van Dyk <kugelfang@gentoo.org>
9 Andreas Jaggi <andreas.jaggi@waterwave.ch>
10
11 Some parts of the code in this file are derived from the ipw2200
12 driver Copyright(c) 2003 - 2004 Intel Corporation.
13
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
18
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
23
24 You should have received a copy of the GNU General Public License
25 along with this program; see the file COPYING. If not, write to
26 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
27 Boston, MA 02110-1301, USA.
28
29 */
30
31 #include <linux/delay.h>
32 #include <linux/init.h>
33 #include <linux/moduleparam.h>
34 #include <linux/if_arp.h>
35 #include <linux/etherdevice.h>
36 #include <linux/version.h>
37 #include <linux/firmware.h>
38 #include <linux/wireless.h>
39 #include <linux/workqueue.h>
40 #include <linux/skbuff.h>
41 #include <linux/dma-mapping.h>
42 #include <net/iw_handler.h>
43
44 #include "bcm43xx.h"
45 #include "bcm43xx_main.h"
46 #include "bcm43xx_debugfs.h"
47 #include "bcm43xx_radio.h"
48 #include "bcm43xx_phy.h"
49 #include "bcm43xx_dma.h"
50 #include "bcm43xx_pio.h"
51 #include "bcm43xx_power.h"
52 #include "bcm43xx_wx.h"
53 #include "bcm43xx_ethtool.h"
54 #include "bcm43xx_xmit.h"
55 #include "bcm43xx_sysfs.h"
56
57
58 MODULE_DESCRIPTION("Broadcom BCM43xx wireless driver");
59 MODULE_AUTHOR("Martin Langer");
60 MODULE_AUTHOR("Stefano Brivio");
61 MODULE_AUTHOR("Michael Buesch");
62 MODULE_LICENSE("GPL");
63
64 #ifdef CONFIG_BCM947XX
65 extern char *nvram_get(char *name);
66 #endif
67
68 #if defined(CONFIG_BCM43XX_DMA) && defined(CONFIG_BCM43XX_PIO)
69 static int modparam_pio;
70 module_param_named(pio, modparam_pio, int, 0444);
71 MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode");
72 #elif defined(CONFIG_BCM43XX_DMA)
73 # define modparam_pio 0
74 #elif defined(CONFIG_BCM43XX_PIO)
75 # define modparam_pio 1
76 #endif
77
78 static int modparam_bad_frames_preempt;
79 module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
80 MODULE_PARM_DESC(bad_frames_preempt, "enable(1) / disable(0) Bad Frames Preemption");
81
82 static int modparam_short_retry = BCM43xx_DEFAULT_SHORT_RETRY_LIMIT;
83 module_param_named(short_retry, modparam_short_retry, int, 0444);
84 MODULE_PARM_DESC(short_retry, "Short-Retry-Limit (0 - 15)");
85
86 static int modparam_long_retry = BCM43xx_DEFAULT_LONG_RETRY_LIMIT;
87 module_param_named(long_retry, modparam_long_retry, int, 0444);
88 MODULE_PARM_DESC(long_retry, "Long-Retry-Limit (0 - 15)");
89
90 static int modparam_locale = -1;
91 module_param_named(locale, modparam_locale, int, 0444);
92 MODULE_PARM_DESC(country, "Select LocaleCode 0-11 (For travelers)");
93
94 static int modparam_noleds;
95 module_param_named(noleds, modparam_noleds, int, 0444);
96 MODULE_PARM_DESC(noleds, "Turn off all LED activity");
97
98 #ifdef CONFIG_BCM43XX_DEBUG
99 static char modparam_fwpostfix[64];
100 module_param_string(fwpostfix, modparam_fwpostfix, 64, 0444);
101 MODULE_PARM_DESC(fwpostfix, "Postfix for .fw files. Useful for debugging.");
102 #else
103 # define modparam_fwpostfix ""
104 #endif /* CONFIG_BCM43XX_DEBUG*/
105
106
107 /* If you want to debug with just a single device, enable this,
108 * where the string is the pci device ID (as given by the kernel's
109 * pci_name function) of the device to be used.
110 */
111 //#define DEBUG_SINGLE_DEVICE_ONLY "0001:11:00.0"
112
113 /* If you want to enable printing of each MMIO access, enable this. */
114 //#define DEBUG_ENABLE_MMIO_PRINT
115
116 /* If you want to enable printing of MMIO access within
117 * ucode/pcm upload, initvals write, enable this.
118 */
119 //#define DEBUG_ENABLE_UCODE_MMIO_PRINT
120
121 /* If you want to enable printing of PCI Config Space access, enable this */
122 //#define DEBUG_ENABLE_PCILOG
123
124
125 /* Detailed list maintained at:
126 * http://openfacts.berlios.de/index-en.phtml?title=Bcm43xxDevices
127 */
128 static struct pci_device_id bcm43xx_pci_tbl[] = {
129 /* Broadcom 4303 802.11b */
130 { PCI_VENDOR_ID_BROADCOM, 0x4301, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
131 /* Broadcom 4307 802.11b */
132 { PCI_VENDOR_ID_BROADCOM, 0x4307, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
133 /* Broadcom 4318 802.11b/g */
134 { PCI_VENDOR_ID_BROADCOM, 0x4318, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
135 /* Broadcom 4319 802.11a/b/g */
136 { PCI_VENDOR_ID_BROADCOM, 0x4319, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
137 /* Broadcom 4306 802.11b/g */
138 { PCI_VENDOR_ID_BROADCOM, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
139 /* Broadcom 4306 802.11a */
140 // { PCI_VENDOR_ID_BROADCOM, 0x4321, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
141 /* Broadcom 4309 802.11a/b/g */
142 { PCI_VENDOR_ID_BROADCOM, 0x4324, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
143 /* Broadcom 43XG 802.11b/g */
144 { PCI_VENDOR_ID_BROADCOM, 0x4325, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
145 #ifdef CONFIG_BCM947XX
146 /* SB bus on BCM947xx */
147 { PCI_VENDOR_ID_BROADCOM, 0x0800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
148 #endif
149 { 0 },
150 };
151 MODULE_DEVICE_TABLE(pci, bcm43xx_pci_tbl);
152
153 static void bcm43xx_ram_write(struct bcm43xx_private *bcm, u16 offset, u32 val)
154 {
155 u32 status;
156
157 status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
158 if (!(status & BCM43xx_SBF_XFER_REG_BYTESWAP))
159 val = swab32(val);
160
161 bcm43xx_write32(bcm, BCM43xx_MMIO_RAM_CONTROL, offset);
162 mmiowb();
163 bcm43xx_write32(bcm, BCM43xx_MMIO_RAM_DATA, val);
164 }
165
166 static inline
167 void bcm43xx_shm_control_word(struct bcm43xx_private *bcm,
168 u16 routing, u16 offset)
169 {
170 u32 control;
171
172 /* "offset" is the WORD offset. */
173
174 control = routing;
175 control <<= 16;
176 control |= offset;
177 bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_CONTROL, control);
178 }
179
180 u32 bcm43xx_shm_read32(struct bcm43xx_private *bcm,
181 u16 routing, u16 offset)
182 {
183 u32 ret;
184
185 if (routing == BCM43xx_SHM_SHARED) {
186 if (offset & 0x0003) {
187 /* Unaligned access */
188 bcm43xx_shm_control_word(bcm, routing, offset >> 2);
189 ret = bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED);
190 ret <<= 16;
191 bcm43xx_shm_control_word(bcm, routing, (offset >> 2) + 1);
192 ret |= bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA);
193
194 return ret;
195 }
196 offset >>= 2;
197 }
198 bcm43xx_shm_control_word(bcm, routing, offset);
199 ret = bcm43xx_read32(bcm, BCM43xx_MMIO_SHM_DATA);
200
201 return ret;
202 }
203
204 u16 bcm43xx_shm_read16(struct bcm43xx_private *bcm,
205 u16 routing, u16 offset)
206 {
207 u16 ret;
208
209 if (routing == BCM43xx_SHM_SHARED) {
210 if (offset & 0x0003) {
211 /* Unaligned access */
212 bcm43xx_shm_control_word(bcm, routing, offset >> 2);
213 ret = bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED);
214
215 return ret;
216 }
217 offset >>= 2;
218 }
219 bcm43xx_shm_control_word(bcm, routing, offset);
220 ret = bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA);
221
222 return ret;
223 }
224
225 void bcm43xx_shm_write32(struct bcm43xx_private *bcm,
226 u16 routing, u16 offset,
227 u32 value)
228 {
229 if (routing == BCM43xx_SHM_SHARED) {
230 if (offset & 0x0003) {
231 /* Unaligned access */
232 bcm43xx_shm_control_word(bcm, routing, offset >> 2);
233 mmiowb();
234 bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED,
235 (value >> 16) & 0xffff);
236 mmiowb();
237 bcm43xx_shm_control_word(bcm, routing, (offset >> 2) + 1);
238 mmiowb();
239 bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA,
240 value & 0xffff);
241 return;
242 }
243 offset >>= 2;
244 }
245 bcm43xx_shm_control_word(bcm, routing, offset);
246 mmiowb();
247 bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA, value);
248 }
249
250 void bcm43xx_shm_write16(struct bcm43xx_private *bcm,
251 u16 routing, u16 offset,
252 u16 value)
253 {
254 if (routing == BCM43xx_SHM_SHARED) {
255 if (offset & 0x0003) {
256 /* Unaligned access */
257 bcm43xx_shm_control_word(bcm, routing, offset >> 2);
258 mmiowb();
259 bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED,
260 value);
261 return;
262 }
263 offset >>= 2;
264 }
265 bcm43xx_shm_control_word(bcm, routing, offset);
266 mmiowb();
267 bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA, value);
268 }
269
270 void bcm43xx_tsf_read(struct bcm43xx_private *bcm, u64 *tsf)
271 {
272 /* We need to be careful. As we read the TSF from multiple
273 * registers, we should take care of register overflows.
274 * In theory, the whole tsf read process should be atomic.
275 * We try to be atomic here, by restaring the read process,
276 * if any of the high registers changed (overflew).
277 */
278 if (bcm->current_core->rev >= 3) {
279 u32 low, high, high2;
280
281 do {
282 high = bcm43xx_read32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_HIGH);
283 low = bcm43xx_read32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_LOW);
284 high2 = bcm43xx_read32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_HIGH);
285 } while (unlikely(high != high2));
286
287 *tsf = high;
288 *tsf <<= 32;
289 *tsf |= low;
290 } else {
291 u64 tmp;
292 u16 v0, v1, v2, v3;
293 u16 test1, test2, test3;
294
295 do {
296 v3 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_3);
297 v2 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_2);
298 v1 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_1);
299 v0 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_0);
300
301 test3 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_3);
302 test2 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_2);
303 test1 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_1);
304 } while (v3 != test3 || v2 != test2 || v1 != test1);
305
306 *tsf = v3;
307 *tsf <<= 48;
308 tmp = v2;
309 tmp <<= 32;
310 *tsf |= tmp;
311 tmp = v1;
312 tmp <<= 16;
313 *tsf |= tmp;
314 *tsf |= v0;
315 }
316 }
317
318 void bcm43xx_tsf_write(struct bcm43xx_private *bcm, u64 tsf)
319 {
320 u32 status;
321
322 status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
323 status |= BCM43xx_SBF_TIME_UPDATE;
324 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
325 mmiowb();
326
327 /* Be careful with the in-progress timer.
328 * First zero out the low register, so we have a full
329 * register-overflow duration to complete the operation.
330 */
331 if (bcm->current_core->rev >= 3) {
332 u32 lo = (tsf & 0x00000000FFFFFFFFULL);
333 u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
334
335 bcm43xx_write32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_LOW, 0);
336 mmiowb();
337 bcm43xx_write32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_HIGH, hi);
338 mmiowb();
339 bcm43xx_write32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_LOW, lo);
340 } else {
341 u16 v0 = (tsf & 0x000000000000FFFFULL);
342 u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
343 u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
344 u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
345
346 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_0, 0);
347 mmiowb();
348 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_3, v3);
349 mmiowb();
350 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_2, v2);
351 mmiowb();
352 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_1, v1);
353 mmiowb();
354 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_0, v0);
355 }
356
357 status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
358 status &= ~BCM43xx_SBF_TIME_UPDATE;
359 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
360 }
361
362 static
363 void bcm43xx_macfilter_set(struct bcm43xx_private *bcm,
364 u16 offset,
365 const u8 *mac)
366 {
367 u16 data;
368
369 offset |= 0x0020;
370 bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_CONTROL, offset);
371
372 data = mac[0];
373 data |= mac[1] << 8;
374 bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_DATA, data);
375 data = mac[2];
376 data |= mac[3] << 8;
377 bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_DATA, data);
378 data = mac[4];
379 data |= mac[5] << 8;
380 bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_DATA, data);
381 }
382
383 static void bcm43xx_macfilter_clear(struct bcm43xx_private *bcm,
384 u16 offset)
385 {
386 const u8 zero_addr[ETH_ALEN] = { 0 };
387
388 bcm43xx_macfilter_set(bcm, offset, zero_addr);
389 }
390
391 static void bcm43xx_write_mac_bssid_templates(struct bcm43xx_private *bcm)
392 {
393 const u8 *mac = (const u8 *)(bcm->net_dev->dev_addr);
394 const u8 *bssid = (const u8 *)(bcm->ieee->bssid);
395 u8 mac_bssid[ETH_ALEN * 2];
396 int i;
397
398 memcpy(mac_bssid, mac, ETH_ALEN);
399 memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
400
401 /* Write our MAC address and BSSID to template ram */
402 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32))
403 bcm43xx_ram_write(bcm, 0x20 + i, *((u32 *)(mac_bssid + i)));
404 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32))
405 bcm43xx_ram_write(bcm, 0x78 + i, *((u32 *)(mac_bssid + i)));
406 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32))
407 bcm43xx_ram_write(bcm, 0x478 + i, *((u32 *)(mac_bssid + i)));
408 }
409
410 //FIXME: Well, we should probably call them from somewhere.
411 #if 0
412 static void bcm43xx_set_slot_time(struct bcm43xx_private *bcm, u16 slot_time)
413 {
414 /* slot_time is in usec. */
415 if (bcm43xx_current_phy(bcm)->type != BCM43xx_PHYTYPE_G)
416 return;
417 bcm43xx_write16(bcm, 0x684, 510 + slot_time);
418 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0010, slot_time);
419 }
420
421 static void bcm43xx_short_slot_timing_enable(struct bcm43xx_private *bcm)
422 {
423 bcm43xx_set_slot_time(bcm, 9);
424 }
425
426 static void bcm43xx_short_slot_timing_disable(struct bcm43xx_private *bcm)
427 {
428 bcm43xx_set_slot_time(bcm, 20);
429 }
430 #endif
431
432 /* FIXME: To get the MAC-filter working, we need to implement the
433 * following functions (and rename them :)
434 */
435 #if 0
436 static void bcm43xx_disassociate(struct bcm43xx_private *bcm)
437 {
438 bcm43xx_mac_suspend(bcm);
439 bcm43xx_macfilter_clear(bcm, BCM43xx_MACFILTER_ASSOC);
440
441 bcm43xx_ram_write(bcm, 0x0026, 0x0000);
442 bcm43xx_ram_write(bcm, 0x0028, 0x0000);
443 bcm43xx_ram_write(bcm, 0x007E, 0x0000);
444 bcm43xx_ram_write(bcm, 0x0080, 0x0000);
445 bcm43xx_ram_write(bcm, 0x047E, 0x0000);
446 bcm43xx_ram_write(bcm, 0x0480, 0x0000);
447
448 if (bcm->current_core->rev < 3) {
449 bcm43xx_write16(bcm, 0x0610, 0x8000);
450 bcm43xx_write16(bcm, 0x060E, 0x0000);
451 } else
452 bcm43xx_write32(bcm, 0x0188, 0x80000000);
453
454 bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0004, 0x000003ff);
455
456 if (bcm43xx_current_phy(bcm)->type == BCM43xx_PHYTYPE_G &&
457 ieee80211_is_ofdm_rate(bcm->softmac->txrates.default_rate))
458 bcm43xx_short_slot_timing_enable(bcm);
459
460 bcm43xx_mac_enable(bcm);
461 }
462
463 static void bcm43xx_associate(struct bcm43xx_private *bcm,
464 const u8 *mac)
465 {
466 memcpy(bcm->ieee->bssid, mac, ETH_ALEN);
467
468 bcm43xx_mac_suspend(bcm);
469 bcm43xx_macfilter_set(bcm, BCM43xx_MACFILTER_ASSOC, mac);
470 bcm43xx_write_mac_bssid_templates(bcm);
471 bcm43xx_mac_enable(bcm);
472 }
473 #endif
474
475 /* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable.
476 * Returns the _previously_ enabled IRQ mask.
477 */
478 static inline u32 bcm43xx_interrupt_enable(struct bcm43xx_private *bcm, u32 mask)
479 {
480 u32 old_mask;
481
482 old_mask = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK);
483 bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK, old_mask | mask);
484
485 return old_mask;
486 }
487
488 /* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable.
489 * Returns the _previously_ enabled IRQ mask.
490 */
491 static inline u32 bcm43xx_interrupt_disable(struct bcm43xx_private *bcm, u32 mask)
492 {
493 u32 old_mask;
494
495 old_mask = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK);
496 bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK, old_mask & ~mask);
497
498 return old_mask;
499 }
500
501 /* Synchronize IRQ top- and bottom-half.
502 * IRQs must be masked before calling this.
503 * This must not be called with the irq_lock held.
504 */
505 static void bcm43xx_synchronize_irq(struct bcm43xx_private *bcm)
506 {
507 synchronize_irq(bcm->irq);
508 tasklet_disable(&bcm->isr_tasklet);
509 }
510
511 /* Make sure we don't receive more data from the device. */
512 static int bcm43xx_disable_interrupts_sync(struct bcm43xx_private *bcm)
513 {
514 unsigned long flags;
515
516 spin_lock_irqsave(&bcm->irq_lock, flags);
517 if (unlikely(bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)) {
518 spin_unlock_irqrestore(&bcm->irq_lock, flags);
519 return -EBUSY;
520 }
521 bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
522 spin_unlock_irqrestore(&bcm->irq_lock, flags);
523 bcm43xx_synchronize_irq(bcm);
524
525 return 0;
526 }
527
528 static int bcm43xx_read_radioinfo(struct bcm43xx_private *bcm)
529 {
530 struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
531 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
532 u32 radio_id;
533 u16 manufact;
534 u16 version;
535 u8 revision;
536
537 if (bcm->chip_id == 0x4317) {
538 if (bcm->chip_rev == 0x00)
539 radio_id = 0x3205017F;
540 else if (bcm->chip_rev == 0x01)
541 radio_id = 0x4205017F;
542 else
543 radio_id = 0x5205017F;
544 } else {
545 bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, BCM43xx_RADIOCTL_ID);
546 radio_id = bcm43xx_read16(bcm, BCM43xx_MMIO_RADIO_DATA_HIGH);
547 radio_id <<= 16;
548 bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, BCM43xx_RADIOCTL_ID);
549 radio_id |= bcm43xx_read16(bcm, BCM43xx_MMIO_RADIO_DATA_LOW);
550 }
551
552 manufact = (radio_id & 0x00000FFF);
553 version = (radio_id & 0x0FFFF000) >> 12;
554 revision = (radio_id & 0xF0000000) >> 28;
555
556 dprintk(KERN_INFO PFX "Detected Radio: ID: %x (Manuf: %x Ver: %x Rev: %x)\n",
557 radio_id, manufact, version, revision);
558
559 switch (phy->type) {
560 case BCM43xx_PHYTYPE_A:
561 if ((version != 0x2060) || (revision != 1) || (manufact != 0x17f))
562 goto err_unsupported_radio;
563 break;
564 case BCM43xx_PHYTYPE_B:
565 if ((version & 0xFFF0) != 0x2050)
566 goto err_unsupported_radio;
567 break;
568 case BCM43xx_PHYTYPE_G:
569 if (version != 0x2050)
570 goto err_unsupported_radio;
571 break;
572 }
573
574 radio->manufact = manufact;
575 radio->version = version;
576 radio->revision = revision;
577
578 if (phy->type == BCM43xx_PHYTYPE_A)
579 radio->txpower_desired = bcm->sprom.maxpower_aphy;
580 else
581 radio->txpower_desired = bcm->sprom.maxpower_bgphy;
582
583 return 0;
584
585 err_unsupported_radio:
586 printk(KERN_ERR PFX "Unsupported Radio connected to the PHY!\n");
587 return -ENODEV;
588 }
589
590 static const char * bcm43xx_locale_iso(u8 locale)
591 {
592 /* ISO 3166-1 country codes.
593 * Note that there aren't ISO 3166-1 codes for
594 * all or locales. (Not all locales are countries)
595 */
596 switch (locale) {
597 case BCM43xx_LOCALE_WORLD:
598 case BCM43xx_LOCALE_ALL:
599 return "XX";
600 case BCM43xx_LOCALE_THAILAND:
601 return "TH";
602 case BCM43xx_LOCALE_ISRAEL:
603 return "IL";
604 case BCM43xx_LOCALE_JORDAN:
605 return "JO";
606 case BCM43xx_LOCALE_CHINA:
607 return "CN";
608 case BCM43xx_LOCALE_JAPAN:
609 case BCM43xx_LOCALE_JAPAN_HIGH:
610 return "JP";
611 case BCM43xx_LOCALE_USA_CANADA_ANZ:
612 case BCM43xx_LOCALE_USA_LOW:
613 return "US";
614 case BCM43xx_LOCALE_EUROPE:
615 return "EU";
616 case BCM43xx_LOCALE_NONE:
617 return " ";
618 }
619 assert(0);
620 return " ";
621 }
622
623 static const char * bcm43xx_locale_string(u8 locale)
624 {
625 switch (locale) {
626 case BCM43xx_LOCALE_WORLD:
627 return "World";
628 case BCM43xx_LOCALE_THAILAND:
629 return "Thailand";
630 case BCM43xx_LOCALE_ISRAEL:
631 return "Israel";
632 case BCM43xx_LOCALE_JORDAN:
633 return "Jordan";
634 case BCM43xx_LOCALE_CHINA:
635 return "China";
636 case BCM43xx_LOCALE_JAPAN:
637 return "Japan";
638 case BCM43xx_LOCALE_USA_CANADA_ANZ:
639 return "USA/Canada/ANZ";
640 case BCM43xx_LOCALE_EUROPE:
641 return "Europe";
642 case BCM43xx_LOCALE_USA_LOW:
643 return "USAlow";
644 case BCM43xx_LOCALE_JAPAN_HIGH:
645 return "JapanHigh";
646 case BCM43xx_LOCALE_ALL:
647 return "All";
648 case BCM43xx_LOCALE_NONE:
649 return "None";
650 }
651 assert(0);
652 return "";
653 }
654
655 static inline u8 bcm43xx_crc8(u8 crc, u8 data)
656 {
657 static const u8 t[] = {
658 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
659 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
660 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
661 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
662 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
663 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
664 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
665 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
666 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
667 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
668 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
669 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
670 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
671 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
672 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
673 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
674 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
675 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
676 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
677 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
678 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
679 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
680 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
681 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
682 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
683 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
684 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
685 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
686 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
687 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
688 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
689 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F,
690 };
691 return t[crc ^ data];
692 }
693
694 static u8 bcm43xx_sprom_crc(const u16 *sprom)
695 {
696 int word;
697 u8 crc = 0xFF;
698
699 for (word = 0; word < BCM43xx_SPROM_SIZE - 1; word++) {
700 crc = bcm43xx_crc8(crc, sprom[word] & 0x00FF);
701 crc = bcm43xx_crc8(crc, (sprom[word] & 0xFF00) >> 8);
702 }
703 crc = bcm43xx_crc8(crc, sprom[BCM43xx_SPROM_VERSION] & 0x00FF);
704 crc ^= 0xFF;
705
706 return crc;
707 }
708
709 int bcm43xx_sprom_read(struct bcm43xx_private *bcm, u16 *sprom)
710 {
711 int i;
712 u8 crc, expected_crc;
713
714 for (i = 0; i < BCM43xx_SPROM_SIZE; i++)
715 sprom[i] = bcm43xx_read16(bcm, BCM43xx_SPROM_BASE + (i * 2));
716 /* CRC-8 check. */
717 crc = bcm43xx_sprom_crc(sprom);
718 expected_crc = (sprom[BCM43xx_SPROM_VERSION] & 0xFF00) >> 8;
719 if (crc != expected_crc) {
720 printk(KERN_WARNING PFX "WARNING: Invalid SPROM checksum "
721 "(0x%02X, expected: 0x%02X)\n",
722 crc, expected_crc);
723 return -EINVAL;
724 }
725
726 return 0;
727 }
728
729 int bcm43xx_sprom_write(struct bcm43xx_private *bcm, const u16 *sprom)
730 {
731 int i, err;
732 u8 crc, expected_crc;
733 u32 spromctl;
734
735 /* CRC-8 validation of the input data. */
736 crc = bcm43xx_sprom_crc(sprom);
737 expected_crc = (sprom[BCM43xx_SPROM_VERSION] & 0xFF00) >> 8;
738 if (crc != expected_crc) {
739 printk(KERN_ERR PFX "SPROM input data: Invalid CRC\n");
740 return -EINVAL;
741 }
742
743 printk(KERN_INFO PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n");
744 err = bcm43xx_pci_read_config32(bcm, BCM43xx_PCICFG_SPROMCTL, &spromctl);
745 if (err)
746 goto err_ctlreg;
747 spromctl |= 0x10; /* SPROM WRITE enable. */
748 bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
749 if (err)
750 goto err_ctlreg;
751 /* We must burn lots of CPU cycles here, but that does not
752 * really matter as one does not write the SPROM every other minute...
753 */
754 printk(KERN_INFO PFX "[ 0%%");
755 mdelay(500);
756 for (i = 0; i < BCM43xx_SPROM_SIZE; i++) {
757 if (i == 16)
758 printk("25%%");
759 else if (i == 32)
760 printk("50%%");
761 else if (i == 48)
762 printk("75%%");
763 else if (i % 2)
764 printk(".");
765 bcm43xx_write16(bcm, BCM43xx_SPROM_BASE + (i * 2), sprom[i]);
766 mmiowb();
767 mdelay(20);
768 }
769 spromctl &= ~0x10; /* SPROM WRITE enable. */
770 bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
771 if (err)
772 goto err_ctlreg;
773 mdelay(500);
774 printk("100%% ]\n");
775 printk(KERN_INFO PFX "SPROM written.\n");
776 bcm43xx_controller_restart(bcm, "SPROM update");
777
778 return 0;
779 err_ctlreg:
780 printk(KERN_ERR PFX "Could not access SPROM control register.\n");
781 return -ENODEV;
782 }
783
784 static int bcm43xx_sprom_extract(struct bcm43xx_private *bcm)
785 {
786 u16 value;
787 u16 *sprom;
788 #ifdef CONFIG_BCM947XX
789 char *c;
790 #endif
791
792 sprom = kzalloc(BCM43xx_SPROM_SIZE * sizeof(u16),
793 GFP_KERNEL);
794 if (!sprom) {
795 printk(KERN_ERR PFX "sprom_extract OOM\n");
796 return -ENOMEM;
797 }
798 #ifdef CONFIG_BCM947XX
799 sprom[BCM43xx_SPROM_BOARDFLAGS2] = atoi(nvram_get("boardflags2"));
800 sprom[BCM43xx_SPROM_BOARDFLAGS] = atoi(nvram_get("boardflags"));
801
802 if ((c = nvram_get("il0macaddr")) != NULL)
803 e_aton(c, (char *) &(sprom[BCM43xx_SPROM_IL0MACADDR]));
804
805 if ((c = nvram_get("et1macaddr")) != NULL)
806 e_aton(c, (char *) &(sprom[BCM43xx_SPROM_ET1MACADDR]));
807
808 sprom[BCM43xx_SPROM_PA0B0] = atoi(nvram_get("pa0b0"));
809 sprom[BCM43xx_SPROM_PA0B1] = atoi(nvram_get("pa0b1"));
810 sprom[BCM43xx_SPROM_PA0B2] = atoi(nvram_get("pa0b2"));
811
812 sprom[BCM43xx_SPROM_PA1B0] = atoi(nvram_get("pa1b0"));
813 sprom[BCM43xx_SPROM_PA1B1] = atoi(nvram_get("pa1b1"));
814 sprom[BCM43xx_SPROM_PA1B2] = atoi(nvram_get("pa1b2"));
815
816 sprom[BCM43xx_SPROM_BOARDREV] = atoi(nvram_get("boardrev"));
817 #else
818 bcm43xx_sprom_read(bcm, sprom);
819 #endif
820
821 /* boardflags2 */
822 value = sprom[BCM43xx_SPROM_BOARDFLAGS2];
823 bcm->sprom.boardflags2 = value;
824
825 /* il0macaddr */
826 value = sprom[BCM43xx_SPROM_IL0MACADDR + 0];
827 *(((u16 *)bcm->sprom.il0macaddr) + 0) = cpu_to_be16(value);
828 value = sprom[BCM43xx_SPROM_IL0MACADDR + 1];
829 *(((u16 *)bcm->sprom.il0macaddr) + 1) = cpu_to_be16(value);
830 value = sprom[BCM43xx_SPROM_IL0MACADDR + 2];
831 *(((u16 *)bcm->sprom.il0macaddr) + 2) = cpu_to_be16(value);
832
833 /* et0macaddr */
834 value = sprom[BCM43xx_SPROM_ET0MACADDR + 0];
835 *(((u16 *)bcm->sprom.et0macaddr) + 0) = cpu_to_be16(value);
836 value = sprom[BCM43xx_SPROM_ET0MACADDR + 1];
837 *(((u16 *)bcm->sprom.et0macaddr) + 1) = cpu_to_be16(value);
838 value = sprom[BCM43xx_SPROM_ET0MACADDR + 2];
839 *(((u16 *)bcm->sprom.et0macaddr) + 2) = cpu_to_be16(value);
840
841 /* et1macaddr */
842 value = sprom[BCM43xx_SPROM_ET1MACADDR + 0];
843 *(((u16 *)bcm->sprom.et1macaddr) + 0) = cpu_to_be16(value);
844 value = sprom[BCM43xx_SPROM_ET1MACADDR + 1];
845 *(((u16 *)bcm->sprom.et1macaddr) + 1) = cpu_to_be16(value);
846 value = sprom[BCM43xx_SPROM_ET1MACADDR + 2];
847 *(((u16 *)bcm->sprom.et1macaddr) + 2) = cpu_to_be16(value);
848
849 /* ethernet phy settings */
850 value = sprom[BCM43xx_SPROM_ETHPHY];
851 bcm->sprom.et0phyaddr = (value & 0x001F);
852 bcm->sprom.et1phyaddr = (value & 0x03E0) >> 5;
853 bcm->sprom.et0mdcport = (value & (1 << 14)) >> 14;
854 bcm->sprom.et1mdcport = (value & (1 << 15)) >> 15;
855
856 /* boardrev, antennas, locale */
857 value = sprom[BCM43xx_SPROM_BOARDREV];
858 bcm->sprom.boardrev = (value & 0x00FF);
859 bcm->sprom.locale = (value & 0x0F00) >> 8;
860 bcm->sprom.antennas_aphy = (value & 0x3000) >> 12;
861 bcm->sprom.antennas_bgphy = (value & 0xC000) >> 14;
862 if (modparam_locale != -1) {
863 if (modparam_locale >= 0 && modparam_locale <= 11) {
864 bcm->sprom.locale = modparam_locale;
865 printk(KERN_WARNING PFX "Operating with modified "
866 "LocaleCode %u (%s)\n",
867 bcm->sprom.locale,
868 bcm43xx_locale_string(bcm->sprom.locale));
869 } else {
870 printk(KERN_WARNING PFX "Module parameter \"locale\" "
871 "invalid value. (0 - 11)\n");
872 }
873 }
874
875 /* pa0b* */
876 value = sprom[BCM43xx_SPROM_PA0B0];
877 bcm->sprom.pa0b0 = value;
878 value = sprom[BCM43xx_SPROM_PA0B1];
879 bcm->sprom.pa0b1 = value;
880 value = sprom[BCM43xx_SPROM_PA0B2];
881 bcm->sprom.pa0b2 = value;
882
883 /* wl0gpio* */
884 value = sprom[BCM43xx_SPROM_WL0GPIO0];
885 if (value == 0x0000)
886 value = 0xFFFF;
887 bcm->sprom.wl0gpio0 = value & 0x00FF;
888 bcm->sprom.wl0gpio1 = (value & 0xFF00) >> 8;
889 value = sprom[BCM43xx_SPROM_WL0GPIO2];
890 if (value == 0x0000)
891 value = 0xFFFF;
892 bcm->sprom.wl0gpio2 = value & 0x00FF;
893 bcm->sprom.wl0gpio3 = (value & 0xFF00) >> 8;
894
895 /* maxpower */
896 value = sprom[BCM43xx_SPROM_MAXPWR];
897 bcm->sprom.maxpower_aphy = (value & 0xFF00) >> 8;
898 bcm->sprom.maxpower_bgphy = value & 0x00FF;
899
900 /* pa1b* */
901 value = sprom[BCM43xx_SPROM_PA1B0];
902 bcm->sprom.pa1b0 = value;
903 value = sprom[BCM43xx_SPROM_PA1B1];
904 bcm->sprom.pa1b1 = value;
905 value = sprom[BCM43xx_SPROM_PA1B2];
906 bcm->sprom.pa1b2 = value;
907
908 /* idle tssi target */
909 value = sprom[BCM43xx_SPROM_IDL_TSSI_TGT];
910 bcm->sprom.idle_tssi_tgt_aphy = value & 0x00FF;
911 bcm->sprom.idle_tssi_tgt_bgphy = (value & 0xFF00) >> 8;
912
913 /* boardflags */
914 value = sprom[BCM43xx_SPROM_BOARDFLAGS];
915 if (value == 0xFFFF)
916 value = 0x0000;
917 bcm->sprom.boardflags = value;
918 /* boardflags workarounds */
919 if (bcm->board_vendor == PCI_VENDOR_ID_DELL &&
920 bcm->chip_id == 0x4301 &&
921 bcm->board_revision == 0x74)
922 bcm->sprom.boardflags |= BCM43xx_BFL_BTCOEXIST;
923 if (bcm->board_vendor == PCI_VENDOR_ID_APPLE &&
924 bcm->board_type == 0x4E &&
925 bcm->board_revision > 0x40)
926 bcm->sprom.boardflags |= BCM43xx_BFL_PACTRL;
927
928 /* antenna gain */
929 value = sprom[BCM43xx_SPROM_ANTENNA_GAIN];
930 if (value == 0x0000 || value == 0xFFFF)
931 value = 0x0202;
932 /* convert values to Q5.2 */
933 bcm->sprom.antennagain_aphy = ((value & 0xFF00) >> 8) * 4;
934 bcm->sprom.antennagain_bgphy = (value & 0x00FF) * 4;
935
936 kfree(sprom);
937
938 return 0;
939 }
940
941 static int bcm43xx_geo_init(struct bcm43xx_private *bcm)
942 {
943 struct ieee80211_geo *geo;
944 struct ieee80211_channel *chan;
945 int have_a = 0, have_bg = 0;
946 int i;
947 u8 channel;
948 struct bcm43xx_phyinfo *phy;
949 const char *iso_country;
950
951 geo = kzalloc(sizeof(*geo), GFP_KERNEL);
952 if (!geo)
953 return -ENOMEM;
954
955 for (i = 0; i < bcm->nr_80211_available; i++) {
956 phy = &(bcm->core_80211_ext[i].phy);
957 switch (phy->type) {
958 case BCM43xx_PHYTYPE_B:
959 case BCM43xx_PHYTYPE_G:
960 have_bg = 1;
961 break;
962 case BCM43xx_PHYTYPE_A:
963 have_a = 1;
964 break;
965 default:
966 assert(0);
967 }
968 }
969 iso_country = bcm43xx_locale_iso(bcm->sprom.locale);
970
971 if (have_a) {
972 for (i = 0, channel = IEEE80211_52GHZ_MIN_CHANNEL;
973 channel <= IEEE80211_52GHZ_MAX_CHANNEL; channel++) {
974 chan = &geo->a[i++];
975 chan->freq = bcm43xx_channel_to_freq_a(channel);
976 chan->channel = channel;
977 }
978 geo->a_channels = i;
979 }
980 if (have_bg) {
981 for (i = 0, channel = IEEE80211_24GHZ_MIN_CHANNEL;
982 channel <= IEEE80211_24GHZ_MAX_CHANNEL; channel++) {
983 chan = &geo->bg[i++];
984 chan->freq = bcm43xx_channel_to_freq_bg(channel);
985 chan->channel = channel;
986 }
987 geo->bg_channels = i;
988 }
989 memcpy(geo->name, iso_country, 2);
990 if (0 /*TODO: Outdoor use only */)
991 geo->name[2] = 'O';
992 else if (0 /*TODO: Indoor use only */)
993 geo->name[2] = 'I';
994 else
995 geo->name[2] = ' ';
996 geo->name[3] = '\0';
997
998 ieee80211_set_geo(bcm->ieee, geo);
999 kfree(geo);
1000
1001 return 0;
1002 }
1003
1004 /* DummyTransmission function, as documented on
1005 * http://bcm-specs.sipsolutions.net/DummyTransmission
1006 */
1007 void bcm43xx_dummy_transmission(struct bcm43xx_private *bcm)
1008 {
1009 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1010 struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1011 unsigned int i, max_loop;
1012 u16 value = 0;
1013 u32 buffer[5] = {
1014 0x00000000,
1015 0x0000D400,
1016 0x00000000,
1017 0x00000001,
1018 0x00000000,
1019 };
1020
1021 switch (phy->type) {
1022 case BCM43xx_PHYTYPE_A:
1023 max_loop = 0x1E;
1024 buffer[0] = 0xCC010200;
1025 break;
1026 case BCM43xx_PHYTYPE_B:
1027 case BCM43xx_PHYTYPE_G:
1028 max_loop = 0xFA;
1029 buffer[0] = 0x6E840B00;
1030 break;
1031 default:
1032 assert(0);
1033 return;
1034 }
1035
1036 for (i = 0; i < 5; i++)
1037 bcm43xx_ram_write(bcm, i * 4, buffer[i]);
1038
1039 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); /* dummy read */
1040
1041 bcm43xx_write16(bcm, 0x0568, 0x0000);
1042 bcm43xx_write16(bcm, 0x07C0, 0x0000);
1043 bcm43xx_write16(bcm, 0x050C, ((phy->type == BCM43xx_PHYTYPE_A) ? 1 : 0));
1044 bcm43xx_write16(bcm, 0x0508, 0x0000);
1045 bcm43xx_write16(bcm, 0x050A, 0x0000);
1046 bcm43xx_write16(bcm, 0x054C, 0x0000);
1047 bcm43xx_write16(bcm, 0x056A, 0x0014);
1048 bcm43xx_write16(bcm, 0x0568, 0x0826);
1049 bcm43xx_write16(bcm, 0x0500, 0x0000);
1050 bcm43xx_write16(bcm, 0x0502, 0x0030);
1051
1052 if (radio->version == 0x2050 && radio->revision <= 0x5)
1053 bcm43xx_radio_write16(bcm, 0x0051, 0x0017);
1054 for (i = 0x00; i < max_loop; i++) {
1055 value = bcm43xx_read16(bcm, 0x050E);
1056 if (value & 0x0080)
1057 break;
1058 udelay(10);
1059 }
1060 for (i = 0x00; i < 0x0A; i++) {
1061 value = bcm43xx_read16(bcm, 0x050E);
1062 if (value & 0x0400)
1063 break;
1064 udelay(10);
1065 }
1066 for (i = 0x00; i < 0x0A; i++) {
1067 value = bcm43xx_read16(bcm, 0x0690);
1068 if (!(value & 0x0100))
1069 break;
1070 udelay(10);
1071 }
1072 if (radio->version == 0x2050 && radio->revision <= 0x5)
1073 bcm43xx_radio_write16(bcm, 0x0051, 0x0037);
1074 }
1075
1076 static void key_write(struct bcm43xx_private *bcm,
1077 u8 index, u8 algorithm, const u16 *key)
1078 {
1079 unsigned int i, basic_wep = 0;
1080 u32 offset;
1081 u16 value;
1082
1083 /* Write associated key information */
1084 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x100 + (index * 2),
1085 ((index << 4) | (algorithm & 0x0F)));
1086
1087 /* The first 4 WEP keys need extra love */
1088 if (((algorithm == BCM43xx_SEC_ALGO_WEP) ||
1089 (algorithm == BCM43xx_SEC_ALGO_WEP104)) && (index < 4))
1090 basic_wep = 1;
1091
1092 /* Write key payload, 8 little endian words */
1093 offset = bcm->security_offset + (index * BCM43xx_SEC_KEYSIZE);
1094 for (i = 0; i < (BCM43xx_SEC_KEYSIZE / sizeof(u16)); i++) {
1095 value = cpu_to_le16(key[i]);
1096 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED,
1097 offset + (i * 2), value);
1098
1099 if (!basic_wep)
1100 continue;
1101
1102 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED,
1103 offset + (i * 2) + 4 * BCM43xx_SEC_KEYSIZE,
1104 value);
1105 }
1106 }
1107
1108 static void keymac_write(struct bcm43xx_private *bcm,
1109 u8 index, const u32 *addr)
1110 {
1111 /* for keys 0-3 there is no associated mac address */
1112 if (index < 4)
1113 return;
1114
1115 index -= 4;
1116 if (bcm->current_core->rev >= 5) {
1117 bcm43xx_shm_write32(bcm,
1118 BCM43xx_SHM_HWMAC,
1119 index * 2,
1120 cpu_to_be32(*addr));
1121 bcm43xx_shm_write16(bcm,
1122 BCM43xx_SHM_HWMAC,
1123 (index * 2) + 1,
1124 cpu_to_be16(*((u16 *)(addr + 1))));
1125 } else {
1126 if (index < 8) {
1127 TODO(); /* Put them in the macaddress filter */
1128 } else {
1129 TODO();
1130 /* Put them BCM43xx_SHM_SHARED, stating index 0x0120.
1131 Keep in mind to update the count of keymacs in 0x003E as well! */
1132 }
1133 }
1134 }
1135
1136 static int bcm43xx_key_write(struct bcm43xx_private *bcm,
1137 u8 index, u8 algorithm,
1138 const u8 *_key, int key_len,
1139 const u8 *mac_addr)
1140 {
1141 u8 key[BCM43xx_SEC_KEYSIZE] = { 0 };
1142
1143 if (index >= ARRAY_SIZE(bcm->key))
1144 return -EINVAL;
1145 if (key_len > ARRAY_SIZE(key))
1146 return -EINVAL;
1147 if (algorithm < 1 || algorithm > 5)
1148 return -EINVAL;
1149
1150 memcpy(key, _key, key_len);
1151 key_write(bcm, index, algorithm, (const u16 *)key);
1152 keymac_write(bcm, index, (const u32 *)mac_addr);
1153
1154 bcm->key[index].algorithm = algorithm;
1155
1156 return 0;
1157 }
1158
1159 static void bcm43xx_clear_keys(struct bcm43xx_private *bcm)
1160 {
1161 static const u32 zero_mac[2] = { 0 };
1162 unsigned int i,j, nr_keys = 54;
1163 u16 offset;
1164
1165 if (bcm->current_core->rev < 5)
1166 nr_keys = 16;
1167 assert(nr_keys <= ARRAY_SIZE(bcm->key));
1168
1169 for (i = 0; i < nr_keys; i++) {
1170 bcm->key[i].enabled = 0;
1171 /* returns for i < 4 immediately */
1172 keymac_write(bcm, i, zero_mac);
1173 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED,
1174 0x100 + (i * 2), 0x0000);
1175 for (j = 0; j < 8; j++) {
1176 offset = bcm->security_offset + (j * 4) + (i * BCM43xx_SEC_KEYSIZE);
1177 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED,
1178 offset, 0x0000);
1179 }
1180 }
1181 dprintk(KERN_INFO PFX "Keys cleared\n");
1182 }
1183
1184 /* Lowlevel core-switch function. This is only to be used in
1185 * bcm43xx_switch_core() and bcm43xx_probe_cores()
1186 */
1187 static int _switch_core(struct bcm43xx_private *bcm, int core)
1188 {
1189 int err;
1190 int attempts = 0;
1191 u32 current_core;
1192
1193 assert(core >= 0);
1194 while (1) {
1195 err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_ACTIVE_CORE,
1196 (core * 0x1000) + 0x18000000);
1197 if (unlikely(err))
1198 goto error;
1199 err = bcm43xx_pci_read_config32(bcm, BCM43xx_PCICFG_ACTIVE_CORE,
1200 &current_core);
1201 if (unlikely(err))
1202 goto error;
1203 current_core = (current_core - 0x18000000) / 0x1000;
1204 if (current_core == core)
1205 break;
1206
1207 if (unlikely(attempts++ > BCM43xx_SWITCH_CORE_MAX_RETRIES))
1208 goto error;
1209 udelay(10);
1210 }
1211 #ifdef CONFIG_BCM947XX
1212 if (bcm->pci_dev->bus->number == 0)
1213 bcm->current_core_offset = 0x1000 * core;
1214 else
1215 bcm->current_core_offset = 0;
1216 #endif
1217
1218 return 0;
1219 error:
1220 printk(KERN_ERR PFX "Failed to switch to core %d\n", core);
1221 return -ENODEV;
1222 }
1223
1224 int bcm43xx_switch_core(struct bcm43xx_private *bcm, struct bcm43xx_coreinfo *new_core)
1225 {
1226 int err;
1227
1228 if (unlikely(!new_core))
1229 return 0;
1230 if (!new_core->available)
1231 return -ENODEV;
1232 if (bcm->current_core == new_core)
1233 return 0;
1234 err = _switch_core(bcm, new_core->index);
1235 if (unlikely(err))
1236 goto out;
1237
1238 bcm->current_core = new_core;
1239 out:
1240 return err;
1241 }
1242
1243 static int bcm43xx_core_enabled(struct bcm43xx_private *bcm)
1244 {
1245 u32 value;
1246
1247 value = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1248 value &= BCM43xx_SBTMSTATELOW_CLOCK | BCM43xx_SBTMSTATELOW_RESET
1249 | BCM43xx_SBTMSTATELOW_REJECT;
1250
1251 return (value == BCM43xx_SBTMSTATELOW_CLOCK);
1252 }
1253
1254 /* disable current core */
1255 static int bcm43xx_core_disable(struct bcm43xx_private *bcm, u32 core_flags)
1256 {
1257 u32 sbtmstatelow;
1258 u32 sbtmstatehigh;
1259 int i;
1260
1261 /* fetch sbtmstatelow from core information registers */
1262 sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1263
1264 /* core is already in reset */
1265 if (sbtmstatelow & BCM43xx_SBTMSTATELOW_RESET)
1266 goto out;
1267
1268 if (sbtmstatelow & BCM43xx_SBTMSTATELOW_CLOCK) {
1269 sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK |
1270 BCM43xx_SBTMSTATELOW_REJECT;
1271 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1272
1273 for (i = 0; i < 1000; i++) {
1274 sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1275 if (sbtmstatelow & BCM43xx_SBTMSTATELOW_REJECT) {
1276 i = -1;
1277 break;
1278 }
1279 udelay(10);
1280 }
1281 if (i != -1) {
1282 printk(KERN_ERR PFX "Error: core_disable() REJECT timeout!\n");
1283 return -EBUSY;
1284 }
1285
1286 for (i = 0; i < 1000; i++) {
1287 sbtmstatehigh = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATEHIGH);
1288 if (!(sbtmstatehigh & BCM43xx_SBTMSTATEHIGH_BUSY)) {
1289 i = -1;
1290 break;
1291 }
1292 udelay(10);
1293 }
1294 if (i != -1) {
1295 printk(KERN_ERR PFX "Error: core_disable() BUSY timeout!\n");
1296 return -EBUSY;
1297 }
1298
1299 sbtmstatelow = BCM43xx_SBTMSTATELOW_FORCE_GATE_CLOCK |
1300 BCM43xx_SBTMSTATELOW_REJECT |
1301 BCM43xx_SBTMSTATELOW_RESET |
1302 BCM43xx_SBTMSTATELOW_CLOCK |
1303 core_flags;
1304 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1305 udelay(10);
1306 }
1307
1308 sbtmstatelow = BCM43xx_SBTMSTATELOW_RESET |
1309 BCM43xx_SBTMSTATELOW_REJECT |
1310 core_flags;
1311 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1312
1313 out:
1314 bcm->current_core->enabled = 0;
1315
1316 return 0;
1317 }
1318
1319 /* enable (reset) current core */
1320 static int bcm43xx_core_enable(struct bcm43xx_private *bcm, u32 core_flags)
1321 {
1322 u32 sbtmstatelow;
1323 u32 sbtmstatehigh;
1324 u32 sbimstate;
1325 int err;
1326
1327 err = bcm43xx_core_disable(bcm, core_flags);
1328 if (err)
1329 goto out;
1330
1331 sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK |
1332 BCM43xx_SBTMSTATELOW_RESET |
1333 BCM43xx_SBTMSTATELOW_FORCE_GATE_CLOCK |
1334 core_flags;
1335 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1336 udelay(1);
1337
1338 sbtmstatehigh = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATEHIGH);
1339 if (sbtmstatehigh & BCM43xx_SBTMSTATEHIGH_SERROR) {
1340 sbtmstatehigh = 0x00000000;
1341 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATEHIGH, sbtmstatehigh);
1342 }
1343
1344 sbimstate = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMSTATE);
1345 if (sbimstate & (BCM43xx_SBIMSTATE_IB_ERROR | BCM43xx_SBIMSTATE_TIMEOUT)) {
1346 sbimstate &= ~(BCM43xx_SBIMSTATE_IB_ERROR | BCM43xx_SBIMSTATE_TIMEOUT);
1347 bcm43xx_write32(bcm, BCM43xx_CIR_SBIMSTATE, sbimstate);
1348 }
1349
1350 sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK |
1351 BCM43xx_SBTMSTATELOW_FORCE_GATE_CLOCK |
1352 core_flags;
1353 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1354 udelay(1);
1355
1356 sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK | core_flags;
1357 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1358 udelay(1);
1359
1360 bcm->current_core->enabled = 1;
1361 assert(err == 0);
1362 out:
1363 return err;
1364 }
1365
1366 /* http://bcm-specs.sipsolutions.net/80211CoreReset */
1367 void bcm43xx_wireless_core_reset(struct bcm43xx_private *bcm, int connect_phy)
1368 {
1369 u32 flags = 0x00040000;
1370
1371 if ((bcm43xx_core_enabled(bcm)) &&
1372 !bcm43xx_using_pio(bcm)) {
1373 //FIXME: Do we _really_ want #ifndef CONFIG_BCM947XX here?
1374 #if 0
1375 #ifndef CONFIG_BCM947XX
1376 /* reset all used DMA controllers. */
1377 bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA1_BASE);
1378 bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA2_BASE);
1379 bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA3_BASE);
1380 bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA4_BASE);
1381 bcm43xx_dmacontroller_rx_reset(bcm, BCM43xx_MMIO_DMA1_BASE);
1382 if (bcm->current_core->rev < 5)
1383 bcm43xx_dmacontroller_rx_reset(bcm, BCM43xx_MMIO_DMA4_BASE);
1384 #endif
1385 #endif
1386 }
1387 if (bcm43xx_status(bcm) == BCM43xx_STAT_SHUTTINGDOWN) {
1388 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
1389 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
1390 & ~(BCM43xx_SBF_MAC_ENABLED | 0x00000002));
1391 } else {
1392 if (connect_phy)
1393 flags |= 0x20000000;
1394 bcm43xx_phy_connect(bcm, connect_phy);
1395 bcm43xx_core_enable(bcm, flags);
1396 bcm43xx_write16(bcm, 0x03E6, 0x0000);
1397 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
1398 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
1399 | BCM43xx_SBF_400);
1400 }
1401 }
1402
1403 static void bcm43xx_wireless_core_disable(struct bcm43xx_private *bcm)
1404 {
1405 bcm43xx_radio_turn_off(bcm);
1406 bcm43xx_write16(bcm, 0x03E6, 0x00F4);
1407 bcm43xx_core_disable(bcm, 0);
1408 }
1409
1410 /* Mark the current 80211 core inactive. */
1411 static void bcm43xx_wireless_core_mark_inactive(struct bcm43xx_private *bcm)
1412 {
1413 u32 sbtmstatelow;
1414
1415 bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
1416 bcm43xx_radio_turn_off(bcm);
1417 sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1418 sbtmstatelow &= 0xDFF5FFFF;
1419 sbtmstatelow |= 0x000A0000;
1420 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1421 udelay(1);
1422 sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1423 sbtmstatelow &= 0xFFF5FFFF;
1424 sbtmstatelow |= 0x00080000;
1425 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1426 udelay(1);
1427 }
1428
1429 static void handle_irq_transmit_status(struct bcm43xx_private *bcm)
1430 {
1431 u32 v0, v1;
1432 u16 tmp;
1433 struct bcm43xx_xmitstatus stat;
1434
1435 while (1) {
1436 v0 = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_0);
1437 if (!v0)
1438 break;
1439 v1 = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_1);
1440
1441 stat.cookie = (v0 >> 16) & 0x0000FFFF;
1442 tmp = (u16)((v0 & 0xFFF0) | ((v0 & 0xF) >> 1));
1443 stat.flags = tmp & 0xFF;
1444 stat.cnt1 = (tmp & 0x0F00) >> 8;
1445 stat.cnt2 = (tmp & 0xF000) >> 12;
1446 stat.seq = (u16)(v1 & 0xFFFF);
1447 stat.unknown = (u16)((v1 >> 16) & 0xFF);
1448
1449 bcm43xx_debugfs_log_txstat(bcm, &stat);
1450
1451 if (stat.flags & BCM43xx_TXSTAT_FLAG_IGNORE)
1452 continue;
1453 if (!(stat.flags & BCM43xx_TXSTAT_FLAG_ACK)) {
1454 //TODO: packet was not acked (was lost)
1455 }
1456 //TODO: There are more (unknown) flags to test. see bcm43xx_main.h
1457
1458 if (bcm43xx_using_pio(bcm))
1459 bcm43xx_pio_handle_xmitstatus(bcm, &stat);
1460 else
1461 bcm43xx_dma_handle_xmitstatus(bcm, &stat);
1462 }
1463 }
1464
1465 static void bcm43xx_generate_noise_sample(struct bcm43xx_private *bcm)
1466 {
1467 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x408, 0x7F7F);
1468 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x40A, 0x7F7F);
1469 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD,
1470 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD) | (1 << 4));
1471 assert(bcm->noisecalc.core_at_start == bcm->current_core);
1472 assert(bcm->noisecalc.channel_at_start == bcm43xx_current_radio(bcm)->channel);
1473 }
1474
1475 static void bcm43xx_calculate_link_quality(struct bcm43xx_private *bcm)
1476 {
1477 /* Top half of Link Quality calculation. */
1478
1479 if (bcm->noisecalc.calculation_running)
1480 return;
1481 bcm->noisecalc.core_at_start = bcm->current_core;
1482 bcm->noisecalc.channel_at_start = bcm43xx_current_radio(bcm)->channel;
1483 bcm->noisecalc.calculation_running = 1;
1484 bcm->noisecalc.nr_samples = 0;
1485
1486 bcm43xx_generate_noise_sample(bcm);
1487 }
1488
1489 static void handle_irq_noise(struct bcm43xx_private *bcm)
1490 {
1491 struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1492 u16 tmp;
1493 u8 noise[4];
1494 u8 i, j;
1495 s32 average;
1496
1497 /* Bottom half of Link Quality calculation. */
1498
1499 assert(bcm->noisecalc.calculation_running);
1500 if (bcm->noisecalc.core_at_start != bcm->current_core ||
1501 bcm->noisecalc.channel_at_start != radio->channel)
1502 goto drop_calculation;
1503 tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x408);
1504 noise[0] = (tmp & 0x00FF);
1505 noise[1] = (tmp & 0xFF00) >> 8;
1506 tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x40A);
1507 noise[2] = (tmp & 0x00FF);
1508 noise[3] = (tmp & 0xFF00) >> 8;
1509 if (noise[0] == 0x7F || noise[1] == 0x7F ||
1510 noise[2] == 0x7F || noise[3] == 0x7F)
1511 goto generate_new;
1512
1513 /* Get the noise samples. */
1514 assert(bcm->noisecalc.nr_samples < 8);
1515 i = bcm->noisecalc.nr_samples;
1516 noise[0] = limit_value(noise[0], 0, ARRAY_SIZE(radio->nrssi_lt) - 1);
1517 noise[1] = limit_value(noise[1], 0, ARRAY_SIZE(radio->nrssi_lt) - 1);
1518 noise[2] = limit_value(noise[2], 0, ARRAY_SIZE(radio->nrssi_lt) - 1);
1519 noise[3] = limit_value(noise[3], 0, ARRAY_SIZE(radio->nrssi_lt) - 1);
1520 bcm->noisecalc.samples[i][0] = radio->nrssi_lt[noise[0]];
1521 bcm->noisecalc.samples[i][1] = radio->nrssi_lt[noise[1]];
1522 bcm->noisecalc.samples[i][2] = radio->nrssi_lt[noise[2]];
1523 bcm->noisecalc.samples[i][3] = radio->nrssi_lt[noise[3]];
1524 bcm->noisecalc.nr_samples++;
1525 if (bcm->noisecalc.nr_samples == 8) {
1526 /* Calculate the Link Quality by the noise samples. */
1527 average = 0;
1528 for (i = 0; i < 8; i++) {
1529 for (j = 0; j < 4; j++)
1530 average += bcm->noisecalc.samples[i][j];
1531 }
1532 average /= (8 * 4);
1533 average *= 125;
1534 average += 64;
1535 average /= 128;
1536
1537 tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x40C);
1538 tmp = (tmp / 128) & 0x1F;
1539 if (tmp >= 8)
1540 average += 2;
1541 else
1542 average -= 25;
1543 if (tmp == 8)
1544 average -= 72;
1545 else
1546 average -= 48;
1547
1548 /* FIXME: This is wrong, but people want fancy stats. well... */
1549 bcm->stats.noise = average;
1550 if (average > -65)
1551 bcm->stats.link_quality = 0;
1552 else if (average > -75)
1553 bcm->stats.link_quality = 1;
1554 else if (average > -85)
1555 bcm->stats.link_quality = 2;
1556 else
1557 bcm->stats.link_quality = 3;
1558 // dprintk(KERN_INFO PFX "Link Quality: %u (avg was %d)\n", bcm->stats.link_quality, average);
1559 drop_calculation:
1560 bcm->noisecalc.calculation_running = 0;
1561 return;
1562 }
1563 generate_new:
1564 bcm43xx_generate_noise_sample(bcm);
1565 }
1566
1567 static void handle_irq_ps(struct bcm43xx_private *bcm)
1568 {
1569 if (bcm->ieee->iw_mode == IW_MODE_MASTER) {
1570 ///TODO: PS TBTT
1571 } else {
1572 if (1/*FIXME: the last PSpoll frame was sent successfully */)
1573 bcm43xx_power_saving_ctl_bits(bcm, -1, -1);
1574 }
1575 if (bcm->ieee->iw_mode == IW_MODE_ADHOC)
1576 bcm->reg124_set_0x4 = 1;
1577 //FIXME else set to false?
1578 }
1579
1580 static void handle_irq_reg124(struct bcm43xx_private *bcm)
1581 {
1582 if (!bcm->reg124_set_0x4)
1583 return;
1584 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD,
1585 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD)
1586 | 0x4);
1587 //FIXME: reset reg124_set_0x4 to false?
1588 }
1589
1590 static void handle_irq_pmq(struct bcm43xx_private *bcm)
1591 {
1592 u32 tmp;
1593
1594 //TODO: AP mode.
1595
1596 while (1) {
1597 tmp = bcm43xx_read32(bcm, BCM43xx_MMIO_PS_STATUS);
1598 if (!(tmp & 0x00000008))
1599 break;
1600 }
1601 /* 16bit write is odd, but correct. */
1602 bcm43xx_write16(bcm, BCM43xx_MMIO_PS_STATUS, 0x0002);
1603 }
1604
1605 static void bcm43xx_generate_beacon_template(struct bcm43xx_private *bcm,
1606 u16 ram_offset, u16 shm_size_offset)
1607 {
1608 u32 value;
1609 u16 size = 0;
1610
1611 /* Timestamp. */
1612 //FIXME: assumption: The chip sets the timestamp
1613 value = 0;
1614 bcm43xx_ram_write(bcm, ram_offset++, value);
1615 bcm43xx_ram_write(bcm, ram_offset++, value);
1616 size += 8;
1617
1618 /* Beacon Interval / Capability Information */
1619 value = 0x0000;//FIXME: Which interval?
1620 value |= (1 << 0) << 16; /* ESS */
1621 value |= (1 << 2) << 16; /* CF Pollable */ //FIXME?
1622 value |= (1 << 3) << 16; /* CF Poll Request */ //FIXME?
1623 if (!bcm->ieee->open_wep)
1624 value |= (1 << 4) << 16; /* Privacy */
1625 bcm43xx_ram_write(bcm, ram_offset++, value);
1626 size += 4;
1627
1628 /* SSID */
1629 //TODO
1630
1631 /* FH Parameter Set */
1632 //TODO
1633
1634 /* DS Parameter Set */
1635 //TODO
1636
1637 /* CF Parameter Set */
1638 //TODO
1639
1640 /* TIM */
1641 //TODO
1642
1643 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, shm_size_offset, size);
1644 }
1645
1646 static void handle_irq_beacon(struct bcm43xx_private *bcm)
1647 {
1648 u32 status;
1649
1650 bcm->irq_savedstate &= ~BCM43xx_IRQ_BEACON;
1651 status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD);
1652
1653 if ((status & 0x1) && (status & 0x2)) {
1654 /* ACK beacon IRQ. */
1655 bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON,
1656 BCM43xx_IRQ_BEACON);
1657 bcm->irq_savedstate |= BCM43xx_IRQ_BEACON;
1658 return;
1659 }
1660 if (!(status & 0x1)) {
1661 bcm43xx_generate_beacon_template(bcm, 0x68, 0x18);
1662 status |= 0x1;
1663 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD, status);
1664 }
1665 if (!(status & 0x2)) {
1666 bcm43xx_generate_beacon_template(bcm, 0x468, 0x1A);
1667 status |= 0x2;
1668 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD, status);
1669 }
1670 }
1671
1672 /* Interrupt handler bottom-half */
1673 static void bcm43xx_interrupt_tasklet(struct bcm43xx_private *bcm)
1674 {
1675 u32 reason;
1676 u32 dma_reason[6];
1677 u32 merged_dma_reason = 0;
1678 int i, activity = 0;
1679 unsigned long flags;
1680
1681 #ifdef CONFIG_BCM43XX_DEBUG
1682 u32 _handled = 0x00000000;
1683 # define bcmirq_handled(irq) do { _handled |= (irq); } while (0)
1684 #else
1685 # define bcmirq_handled(irq) do { /* nothing */ } while (0)
1686 #endif /* CONFIG_BCM43XX_DEBUG*/
1687
1688 spin_lock_irqsave(&bcm->irq_lock, flags);
1689 reason = bcm->irq_reason;
1690 for (i = 5; i >= 0; i--) {
1691 dma_reason[i] = bcm->dma_reason[i];
1692 merged_dma_reason |= dma_reason[i];
1693 }
1694
1695 if (unlikely(reason & BCM43xx_IRQ_XMIT_ERROR)) {
1696 /* TX error. We get this when Template Ram is written in wrong endianess
1697 * in dummy_tx(). We also get this if something is wrong with the TX header
1698 * on DMA or PIO queues.
1699 * Maybe we get this in other error conditions, too.
1700 */
1701 printkl(KERN_ERR PFX "FATAL ERROR: BCM43xx_IRQ_XMIT_ERROR\n");
1702 bcmirq_handled(BCM43xx_IRQ_XMIT_ERROR);
1703 }
1704 if (unlikely(merged_dma_reason & BCM43xx_DMAIRQ_FATALMASK)) {
1705 printkl(KERN_ERR PFX "FATAL ERROR: Fatal DMA error: "
1706 "0x%08X, 0x%08X, 0x%08X, "
1707 "0x%08X, 0x%08X, 0x%08X\n",
1708 dma_reason[0], dma_reason[1],
1709 dma_reason[2], dma_reason[3],
1710 dma_reason[4], dma_reason[5]);
1711 bcm43xx_controller_restart(bcm, "DMA error");
1712 mmiowb();
1713 spin_unlock_irqrestore(&bcm->irq_lock, flags);
1714 return;
1715 }
1716 if (unlikely(merged_dma_reason & BCM43xx_DMAIRQ_NONFATALMASK)) {
1717 printkl(KERN_ERR PFX "DMA error: "
1718 "0x%08X, 0x%08X, 0x%08X, "
1719 "0x%08X, 0x%08X, 0x%08X\n",
1720 dma_reason[0], dma_reason[1],
1721 dma_reason[2], dma_reason[3],
1722 dma_reason[4], dma_reason[5]);
1723 }
1724
1725 if (reason & BCM43xx_IRQ_PS) {
1726 handle_irq_ps(bcm);
1727 bcmirq_handled(BCM43xx_IRQ_PS);
1728 }
1729
1730 if (reason & BCM43xx_IRQ_REG124) {
1731 handle_irq_reg124(bcm);
1732 bcmirq_handled(BCM43xx_IRQ_REG124);
1733 }
1734
1735 if (reason & BCM43xx_IRQ_BEACON) {
1736 if (bcm->ieee->iw_mode == IW_MODE_MASTER)
1737 handle_irq_beacon(bcm);
1738 bcmirq_handled(BCM43xx_IRQ_BEACON);
1739 }
1740
1741 if (reason & BCM43xx_IRQ_PMQ) {
1742 handle_irq_pmq(bcm);
1743 bcmirq_handled(BCM43xx_IRQ_PMQ);
1744 }
1745
1746 if (reason & BCM43xx_IRQ_SCAN) {
1747 /*TODO*/
1748 //bcmirq_handled(BCM43xx_IRQ_SCAN);
1749 }
1750
1751 if (reason & BCM43xx_IRQ_NOISE) {
1752 handle_irq_noise(bcm);
1753 bcmirq_handled(BCM43xx_IRQ_NOISE);
1754 }
1755
1756 /* Check the DMA reason registers for received data. */
1757 if (dma_reason[0] & BCM43xx_DMAIRQ_RX_DONE) {
1758 if (bcm43xx_using_pio(bcm))
1759 bcm43xx_pio_rx(bcm43xx_current_pio(bcm)->queue0);
1760 else
1761 bcm43xx_dma_rx(bcm43xx_current_dma(bcm)->rx_ring0);
1762 /* We intentionally don't set "activity" to 1, here. */
1763 }
1764 assert(!(dma_reason[1] & BCM43xx_DMAIRQ_RX_DONE));
1765 assert(!(dma_reason[2] & BCM43xx_DMAIRQ_RX_DONE));
1766 if (dma_reason[3] & BCM43xx_DMAIRQ_RX_DONE) {
1767 if (bcm43xx_using_pio(bcm))
1768 bcm43xx_pio_rx(bcm43xx_current_pio(bcm)->queue3);
1769 else
1770 bcm43xx_dma_rx(bcm43xx_current_dma(bcm)->rx_ring3);
1771 activity = 1;
1772 }
1773 assert(!(dma_reason[4] & BCM43xx_DMAIRQ_RX_DONE));
1774 assert(!(dma_reason[5] & BCM43xx_DMAIRQ_RX_DONE));
1775 bcmirq_handled(BCM43xx_IRQ_RX);
1776
1777 if (reason & BCM43xx_IRQ_XMIT_STATUS) {
1778 handle_irq_transmit_status(bcm);
1779 activity = 1;
1780 //TODO: In AP mode, this also causes sending of powersave responses.
1781 bcmirq_handled(BCM43xx_IRQ_XMIT_STATUS);
1782 }
1783
1784 /* IRQ_PIO_WORKAROUND is handled in the top-half. */
1785 bcmirq_handled(BCM43xx_IRQ_PIO_WORKAROUND);
1786 #ifdef CONFIG_BCM43XX_DEBUG
1787 if (unlikely(reason & ~_handled)) {
1788 printkl(KERN_WARNING PFX
1789 "Unhandled IRQ! Reason: 0x%08x, Unhandled: 0x%08x, "
1790 "DMA: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
1791 reason, (reason & ~_handled),
1792 dma_reason[0], dma_reason[1],
1793 dma_reason[2], dma_reason[3]);
1794 }
1795 #endif
1796 #undef bcmirq_handled
1797
1798 if (!modparam_noleds)
1799 bcm43xx_leds_update(bcm, activity);
1800 bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate);
1801 mmiowb();
1802 spin_unlock_irqrestore(&bcm->irq_lock, flags);
1803 }
1804
1805 static void pio_irq_workaround(struct bcm43xx_private *bcm,
1806 u16 base, int queueidx)
1807 {
1808 u16 rxctl;
1809
1810 rxctl = bcm43xx_read16(bcm, base + BCM43xx_PIO_RXCTL);
1811 if (rxctl & BCM43xx_PIO_RXCTL_DATAAVAILABLE)
1812 bcm->dma_reason[queueidx] |= BCM43xx_DMAIRQ_RX_DONE;
1813 else
1814 bcm->dma_reason[queueidx] &= ~BCM43xx_DMAIRQ_RX_DONE;
1815 }
1816
1817 static void bcm43xx_interrupt_ack(struct bcm43xx_private *bcm, u32 reason)
1818 {
1819 if (bcm43xx_using_pio(bcm) &&
1820 (bcm->current_core->rev < 3) &&
1821 (!(reason & BCM43xx_IRQ_PIO_WORKAROUND))) {
1822 /* Apply a PIO specific workaround to the dma_reasons */
1823 pio_irq_workaround(bcm, BCM43xx_MMIO_PIO1_BASE, 0);
1824 pio_irq_workaround(bcm, BCM43xx_MMIO_PIO2_BASE, 1);
1825 pio_irq_workaround(bcm, BCM43xx_MMIO_PIO3_BASE, 2);
1826 pio_irq_workaround(bcm, BCM43xx_MMIO_PIO4_BASE, 3);
1827 }
1828
1829 bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, reason);
1830
1831 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA0_REASON,
1832 bcm->dma_reason[0]);
1833 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA1_REASON,
1834 bcm->dma_reason[1]);
1835 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA2_REASON,
1836 bcm->dma_reason[2]);
1837 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA3_REASON,
1838 bcm->dma_reason[3]);
1839 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA4_REASON,
1840 bcm->dma_reason[4]);
1841 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA5_REASON,
1842 bcm->dma_reason[5]);
1843 }
1844
1845 /* Interrupt handler top-half */
1846 static irqreturn_t bcm43xx_interrupt_handler(int irq, void *dev_id, struct pt_regs *regs)
1847 {
1848 irqreturn_t ret = IRQ_HANDLED;
1849 struct bcm43xx_private *bcm = dev_id;
1850 u32 reason;
1851
1852 if (!bcm)
1853 return IRQ_NONE;
1854
1855 spin_lock(&bcm->irq_lock);
1856
1857 assert(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
1858 assert(bcm->current_core->id == BCM43xx_COREID_80211);
1859
1860 reason = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON);
1861 if (reason == 0xffffffff) {
1862 /* irq not for us (shared irq) */
1863 ret = IRQ_NONE;
1864 goto out;
1865 }
1866 reason &= bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK);
1867 if (!reason)
1868 goto out;
1869
1870 bcm->dma_reason[0] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA0_REASON)
1871 & 0x0001DC00;
1872 bcm->dma_reason[1] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA1_REASON)
1873 & 0x0000DC00;
1874 bcm->dma_reason[2] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA2_REASON)
1875 & 0x0000DC00;
1876 bcm->dma_reason[3] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA3_REASON)
1877 & 0x0001DC00;
1878 bcm->dma_reason[4] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA4_REASON)
1879 & 0x0000DC00;
1880 bcm->dma_reason[5] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA5_REASON)
1881 & 0x0000DC00;
1882
1883 bcm43xx_interrupt_ack(bcm, reason);
1884
1885 /* disable all IRQs. They are enabled again in the bottom half. */
1886 bcm->irq_savedstate = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
1887 /* save the reason code and call our bottom half. */
1888 bcm->irq_reason = reason;
1889 tasklet_schedule(&bcm->isr_tasklet);
1890
1891 out:
1892 mmiowb();
1893 spin_unlock(&bcm->irq_lock);
1894
1895 return ret;
1896 }
1897
1898 static void bcm43xx_release_firmware(struct bcm43xx_private *bcm, int force)
1899 {
1900 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1901
1902 if (bcm->firmware_norelease && !force)
1903 return; /* Suspending or controller reset. */
1904 release_firmware(phy->ucode);
1905 phy->ucode = NULL;
1906 release_firmware(phy->pcm);
1907 phy->pcm = NULL;
1908 release_firmware(phy->initvals0);
1909 phy->initvals0 = NULL;
1910 release_firmware(phy->initvals1);
1911 phy->initvals1 = NULL;
1912 }
1913
1914 static int bcm43xx_request_firmware(struct bcm43xx_private *bcm)
1915 {
1916 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1917 u8 rev = bcm->current_core->rev;
1918 int err = 0;
1919 int nr;
1920 char buf[22 + sizeof(modparam_fwpostfix) - 1] = { 0 };
1921
1922 if (!phy->ucode) {
1923 snprintf(buf, ARRAY_SIZE(buf), "bcm43xx_microcode%d%s.fw",
1924 (rev >= 5 ? 5 : rev),
1925 modparam_fwpostfix);
1926 err = request_firmware(&phy->ucode, buf, &bcm->pci_dev->dev);
1927 if (err) {
1928 printk(KERN_ERR PFX
1929 "Error: Microcode \"%s\" not available or load failed.\n",
1930 buf);
1931 goto error;
1932 }
1933 }
1934
1935 if (!phy->pcm) {
1936 snprintf(buf, ARRAY_SIZE(buf),
1937 "bcm43xx_pcm%d%s.fw",
1938 (rev < 5 ? 4 : 5),
1939 modparam_fwpostfix);
1940 err = request_firmware(&phy->pcm, buf, &bcm->pci_dev->dev);
1941 if (err) {
1942 printk(KERN_ERR PFX
1943 "Error: PCM \"%s\" not available or load failed.\n",
1944 buf);
1945 goto error;
1946 }
1947 }
1948
1949 if (!phy->initvals0) {
1950 if (rev == 2 || rev == 4) {
1951 switch (phy->type) {
1952 case BCM43xx_PHYTYPE_A:
1953 nr = 3;
1954 break;
1955 case BCM43xx_PHYTYPE_B:
1956 case BCM43xx_PHYTYPE_G:
1957 nr = 1;
1958 break;
1959 default:
1960 goto err_noinitval;
1961 }
1962
1963 } else if (rev >= 5) {
1964 switch (phy->type) {
1965 case BCM43xx_PHYTYPE_A:
1966 nr = 7;
1967 break;
1968 case BCM43xx_PHYTYPE_B:
1969 case BCM43xx_PHYTYPE_G:
1970 nr = 5;
1971 break;
1972 default:
1973 goto err_noinitval;
1974 }
1975 } else
1976 goto err_noinitval;
1977 snprintf(buf, ARRAY_SIZE(buf), "bcm43xx_initval%02d%s.fw",
1978 nr, modparam_fwpostfix);
1979
1980 err = request_firmware(&phy->initvals0, buf, &bcm->pci_dev->dev);
1981 if (err) {
1982 printk(KERN_ERR PFX
1983 "Error: InitVals \"%s\" not available or load failed.\n",
1984 buf);
1985 goto error;
1986 }
1987 if (phy->initvals0->size % sizeof(struct bcm43xx_initval)) {
1988 printk(KERN_ERR PFX "InitVals fileformat error.\n");
1989 goto error;
1990 }
1991 }
1992
1993 if (!phy->initvals1) {
1994 if (rev >= 5) {
1995 u32 sbtmstatehigh;
1996
1997 switch (phy->type) {
1998 case BCM43xx_PHYTYPE_A:
1999 sbtmstatehigh = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATEHIGH);
2000 if (sbtmstatehigh & 0x00010000)
2001 nr = 9;
2002 else
2003 nr = 10;
2004 break;
2005 case BCM43xx_PHYTYPE_B:
2006 case BCM43xx_PHYTYPE_G:
2007 nr = 6;
2008 break;
2009 default:
2010 goto err_noinitval;
2011 }
2012 snprintf(buf, ARRAY_SIZE(buf), "bcm43xx_initval%02d%s.fw",
2013 nr, modparam_fwpostfix);
2014
2015 err = request_firmware(&phy->initvals1, buf, &bcm->pci_dev->dev);
2016 if (err) {
2017 printk(KERN_ERR PFX
2018 "Error: InitVals \"%s\" not available or load failed.\n",
2019 buf);
2020 goto error;
2021 }
2022 if (phy->initvals1->size % sizeof(struct bcm43xx_initval)) {
2023 printk(KERN_ERR PFX "InitVals fileformat error.\n");
2024 goto error;
2025 }
2026 }
2027 }
2028
2029 out:
2030 return err;
2031 error:
2032 bcm43xx_release_firmware(bcm, 1);
2033 goto out;
2034 err_noinitval:
2035 printk(KERN_ERR PFX "Error: No InitVals available!\n");
2036 err = -ENOENT;
2037 goto error;
2038 }
2039
2040 static void bcm43xx_upload_microcode(struct bcm43xx_private *bcm)
2041 {
2042 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
2043 const u32 *data;
2044 unsigned int i, len;
2045
2046 /* Upload Microcode. */
2047 data = (u32 *)(phy->ucode->data);
2048 len = phy->ucode->size / sizeof(u32);
2049 bcm43xx_shm_control_word(bcm, BCM43xx_SHM_UCODE, 0x0000);
2050 for (i = 0; i < len; i++) {
2051 bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA,
2052 be32_to_cpu(data[i]));
2053 udelay(10);
2054 }
2055
2056 /* Upload PCM data. */
2057 data = (u32 *)(phy->pcm->data);
2058 len = phy->pcm->size / sizeof(u32);
2059 bcm43xx_shm_control_word(bcm, BCM43xx_SHM_PCM, 0x01ea);
2060 bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA, 0x00004000);
2061 bcm43xx_shm_control_word(bcm, BCM43xx_SHM_PCM, 0x01eb);
2062 for (i = 0; i < len; i++) {
2063 bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA,
2064 be32_to_cpu(data[i]));
2065 udelay(10);
2066 }
2067 }
2068
2069 static int bcm43xx_write_initvals(struct bcm43xx_private *bcm,
2070 const struct bcm43xx_initval *data,
2071 const unsigned int len)
2072 {
2073 u16 offset, size;
2074 u32 value;
2075 unsigned int i;
2076
2077 for (i = 0; i < len; i++) {
2078 offset = be16_to_cpu(data[i].offset);
2079 size = be16_to_cpu(data[i].size);
2080 value = be32_to_cpu(data[i].value);
2081
2082 if (unlikely(offset >= 0x1000))
2083 goto err_format;
2084 if (size == 2) {
2085 if (unlikely(value & 0xFFFF0000))
2086 goto err_format;
2087 bcm43xx_write16(bcm, offset, (u16)value);
2088 } else if (size == 4) {
2089 bcm43xx_write32(bcm, offset, value);
2090 } else
2091 goto err_format;
2092 }
2093
2094 return 0;
2095
2096 err_format:
2097 printk(KERN_ERR PFX "InitVals (bcm43xx_initvalXX.fw) file-format error. "
2098 "Please fix your bcm43xx firmware files.\n");
2099 return -EPROTO;
2100 }
2101
2102 static int bcm43xx_upload_initvals(struct bcm43xx_private *bcm)
2103 {
2104 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
2105 int err;
2106
2107 err = bcm43xx_write_initvals(bcm, (struct bcm43xx_initval *)phy->initvals0->data,
2108 phy->initvals0->size / sizeof(struct bcm43xx_initval));
2109 if (err)
2110 goto out;
2111 if (phy->initvals1) {
2112 err = bcm43xx_write_initvals(bcm, (struct bcm43xx_initval *)phy->initvals1->data,
2113 phy->initvals1->size / sizeof(struct bcm43xx_initval));
2114 if (err)
2115 goto out;
2116 }
2117 out:
2118 return err;
2119 }
2120
2121 #ifdef CONFIG_BCM947XX
2122 static struct pci_device_id bcm43xx_47xx_ids[] = {
2123 { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4324) },
2124 { 0 }
2125 };
2126 #endif
2127
2128 static int bcm43xx_initialize_irq(struct bcm43xx_private *bcm)
2129 {
2130 int err;
2131
2132 bcm->irq = bcm->pci_dev->irq;
2133 #ifdef CONFIG_BCM947XX
2134 if (bcm->pci_dev->bus->number == 0) {
2135 struct pci_dev *d;
2136 struct pci_device_id *id;
2137 for (id = bcm43xx_47xx_ids; id->vendor; id++) {
2138 d = pci_get_device(id->vendor, id->device, NULL);
2139 if (d != NULL) {
2140 bcm->irq = d->irq;
2141 pci_dev_put(d);
2142 break;
2143 }
2144 }
2145 }
2146 #endif
2147 err = request_irq(bcm->irq, bcm43xx_interrupt_handler,
2148 IRQF_SHARED, KBUILD_MODNAME, bcm);
2149 if (err)
2150 printk(KERN_ERR PFX "Cannot register IRQ%d\n", bcm->irq);
2151
2152 return err;
2153 }
2154
2155 /* Switch to the core used to write the GPIO register.
2156 * This is either the ChipCommon, or the PCI core.
2157 */
2158 static int switch_to_gpio_core(struct bcm43xx_private *bcm)
2159 {
2160 int err;
2161
2162 /* Where to find the GPIO register depends on the chipset.
2163 * If it has a ChipCommon, its register at offset 0x6c is the GPIO
2164 * control register. Otherwise the register at offset 0x6c in the
2165 * PCI core is the GPIO control register.
2166 */
2167 err = bcm43xx_switch_core(bcm, &bcm->core_chipcommon);
2168 if (err == -ENODEV) {
2169 err = bcm43xx_switch_core(bcm, &bcm->core_pci);
2170 if (unlikely(err == -ENODEV)) {
2171 printk(KERN_ERR PFX "gpio error: "
2172 "Neither ChipCommon nor PCI core available!\n");
2173 }
2174 }
2175
2176 return err;
2177 }
2178
2179 /* Initialize the GPIOs
2180 * http://bcm-specs.sipsolutions.net/GPIO
2181 */
2182 static int bcm43xx_gpio_init(struct bcm43xx_private *bcm)
2183 {
2184 struct bcm43xx_coreinfo *old_core;
2185 int err;
2186 u32 mask, set;
2187
2188 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
2189 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
2190 & 0xFFFF3FFF);
2191
2192 bcm43xx_leds_switch_all(bcm, 0);
2193 bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_MASK,
2194 bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_MASK) | 0x000F);
2195
2196 mask = 0x0000001F;
2197 set = 0x0000000F;
2198 if (bcm->chip_id == 0x4301) {
2199 mask |= 0x0060;
2200 set |= 0x0060;
2201 }
2202 if (0 /* FIXME: conditional unknown */) {
2203 bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_MASK,
2204 bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_MASK)
2205 | 0x0100);
2206 mask |= 0x0180;
2207 set |= 0x0180;
2208 }
2209 if (bcm->sprom.boardflags & BCM43xx_BFL_PACTRL) {
2210 bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_MASK,
2211 bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_MASK)
2212 | 0x0200);
2213 mask |= 0x0200;
2214 set |= 0x0200;
2215 }
2216 if (bcm->current_core->rev >= 2)
2217 mask |= 0x0010; /* FIXME: This is redundant. */
2218
2219 old_core = bcm->current_core;
2220 err = switch_to_gpio_core(bcm);
2221 if (err)
2222 goto out;
2223 bcm43xx_write32(bcm, BCM43xx_GPIO_CONTROL,
2224 (bcm43xx_read32(bcm, BCM43xx_GPIO_CONTROL) & mask) | set);
2225 err = bcm43xx_switch_core(bcm, old_core);
2226 out:
2227 return err;
2228 }
2229
2230 /* Turn off all GPIO stuff. Call this on module unload, for example. */
2231 static int bcm43xx_gpio_cleanup(struct bcm43xx_private *bcm)
2232 {
2233 struct bcm43xx_coreinfo *old_core;
2234 int err;
2235
2236 old_core = bcm->current_core;
2237 err = switch_to_gpio_core(bcm);
2238 if (err)
2239 return err;
2240 bcm43xx_write32(bcm, BCM43xx_GPIO_CONTROL, 0x00000000);
2241 err = bcm43xx_switch_core(bcm, old_core);
2242 assert(err == 0);
2243
2244 return 0;
2245 }
2246
2247 /* http://bcm-specs.sipsolutions.net/EnableMac */
2248 void bcm43xx_mac_enable(struct bcm43xx_private *bcm)
2249 {
2250 bcm->mac_suspended--;
2251 assert(bcm->mac_suspended >= 0);
2252 if (bcm->mac_suspended == 0) {
2253 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
2254 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
2255 | BCM43xx_SBF_MAC_ENABLED);
2256 bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, BCM43xx_IRQ_READY);
2257 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); /* dummy read */
2258 bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */
2259 bcm43xx_power_saving_ctl_bits(bcm, -1, -1);
2260 }
2261 }
2262
2263 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
2264 void bcm43xx_mac_suspend(struct bcm43xx_private *bcm)
2265 {
2266 int i;
2267 u32 tmp;
2268
2269 assert(bcm->mac_suspended >= 0);
2270 if (bcm->mac_suspended == 0) {
2271 bcm43xx_power_saving_ctl_bits(bcm, -1, 1);
2272 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
2273 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
2274 & ~BCM43xx_SBF_MAC_ENABLED);
2275 bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */
2276 for (i = 10000; i; i--) {
2277 tmp = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON);
2278 if (tmp & BCM43xx_IRQ_READY)
2279 goto out;
2280 udelay(1);
2281 }
2282 printkl(KERN_ERR PFX "MAC suspend failed\n");
2283 }
2284 out:
2285 bcm->mac_suspended++;
2286 }
2287
2288 void bcm43xx_set_iwmode(struct bcm43xx_private *bcm,
2289 int iw_mode)
2290 {
2291 unsigned long flags;
2292 struct net_device *net_dev = bcm->net_dev;
2293 u32 status;
2294 u16 value;
2295
2296 spin_lock_irqsave(&bcm->ieee->lock, flags);
2297 bcm->ieee->iw_mode = iw_mode;
2298 spin_unlock_irqrestore(&bcm->ieee->lock, flags);
2299 if (iw_mode == IW_MODE_MONITOR)
2300 net_dev->type = ARPHRD_IEEE80211;
2301 else
2302 net_dev->type = ARPHRD_ETHER;
2303
2304 status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2305 /* Reset status to infrastructured mode */
2306 status &= ~(BCM43xx_SBF_MODE_AP | BCM43xx_SBF_MODE_MONITOR);
2307 status &= ~BCM43xx_SBF_MODE_PROMISC;
2308 status |= BCM43xx_SBF_MODE_NOTADHOC;
2309
2310 /* FIXME: Always enable promisc mode, until we get the MAC filters working correctly. */
2311 status |= BCM43xx_SBF_MODE_PROMISC;
2312
2313 switch (iw_mode) {
2314 case IW_MODE_MONITOR:
2315 status |= BCM43xx_SBF_MODE_MONITOR;
2316 status |= BCM43xx_SBF_MODE_PROMISC;
2317 break;
2318 case IW_MODE_ADHOC:
2319 status &= ~BCM43xx_SBF_MODE_NOTADHOC;
2320 break;
2321 case IW_MODE_MASTER:
2322 status |= BCM43xx_SBF_MODE_AP;
2323 break;
2324 case IW_MODE_SECOND:
2325 case IW_MODE_REPEAT:
2326 TODO(); /* TODO */
2327 break;
2328 case IW_MODE_INFRA:
2329 /* nothing to be done here... */
2330 break;
2331 default:
2332 dprintk(KERN_ERR PFX "Unknown mode in set_iwmode: %d\n", iw_mode);
2333 }
2334 if (net_dev->flags & IFF_PROMISC)
2335 status |= BCM43xx_SBF_MODE_PROMISC;
2336 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
2337
2338 value = 0x0002;
2339 if (iw_mode != IW_MODE_ADHOC && iw_mode != IW_MODE_MASTER) {
2340 if (bcm->chip_id == 0x4306 && bcm->chip_rev == 3)
2341 value = 0x0064;
2342 else
2343 value = 0x0032;
2344 }
2345 bcm43xx_write16(bcm, 0x0612, value);
2346 }
2347
2348 /* This is the opposite of bcm43xx_chip_init() */
2349 static void bcm43xx_chip_cleanup(struct bcm43xx_private *bcm)
2350 {
2351 bcm43xx_radio_turn_off(bcm);
2352 if (!modparam_noleds)
2353 bcm43xx_leds_exit(bcm);
2354 bcm43xx_gpio_cleanup(bcm);
2355 bcm43xx_release_firmware(bcm, 0);
2356 }
2357
2358 /* Initialize the chip
2359 * http://bcm-specs.sipsolutions.net/ChipInit
2360 */
2361 static int bcm43xx_chip_init(struct bcm43xx_private *bcm)
2362 {
2363 struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
2364 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
2365 int err;
2366 int i, tmp;
2367 u32 value32;
2368 u16 value16;
2369
2370 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
2371 BCM43xx_SBF_CORE_READY
2372 | BCM43xx_SBF_400);
2373
2374 err = bcm43xx_request_firmware(bcm);
2375 if (err)
2376 goto out;
2377 bcm43xx_upload_microcode(bcm);
2378
2379 bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, 0xFFFFFFFF);
2380 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, 0x00020402);
2381 i = 0;
2382 while (1) {
2383 value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON);
2384 if (value32 == BCM43xx_IRQ_READY)
2385 break;
2386 i++;
2387 if (i >= BCM43xx_IRQWAIT_MAX_RETRIES) {
2388 printk(KERN_ERR PFX "IRQ_READY timeout\n");
2389 err = -ENODEV;
2390 goto err_release_fw;
2391 }
2392 udelay(10);
2393 }
2394 bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */
2395
2396 err = bcm43xx_gpio_init(bcm);
2397 if (err)
2398 goto err_release_fw;
2399
2400 err = bcm43xx_upload_initvals(bcm);
2401 if (err)
2402 goto err_gpio_cleanup;
2403 bcm43xx_radio_turn_on(bcm);
2404
2405 bcm43xx_write16(bcm, 0x03E6, 0x0000);
2406 err = bcm43xx_phy_init(bcm);
2407 if (err)
2408 goto err_radio_off;
2409
2410 /* Select initial Interference Mitigation. */
2411 tmp = radio->interfmode;
2412 radio->interfmode = BCM43xx_RADIO_INTERFMODE_NONE;
2413 bcm43xx_radio_set_interference_mitigation(bcm, tmp);
2414
2415 bcm43xx_phy_set_antenna_diversity(bcm);
2416 bcm43xx_radio_set_txantenna(bcm, BCM43xx_RADIO_TXANTENNA_DEFAULT);
2417 if (phy->type == BCM43xx_PHYTYPE_B) {
2418 value16 = bcm43xx_read16(bcm, 0x005E);
2419 value16 |= 0x0004;
2420 bcm43xx_write16(bcm, 0x005E, value16);
2421 }
2422 bcm43xx_write32(bcm, 0x0100, 0x01000000);
2423 if (bcm->current_core->rev < 5)
2424 bcm43xx_write32(bcm, 0x010C, 0x01000000);
2425
2426 value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2427 value32 &= ~ BCM43xx_SBF_MODE_NOTADHOC;
2428 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32);
2429 value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2430 value32 |= BCM43xx_SBF_MODE_NOTADHOC;
2431 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32);
2432
2433 value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2434 value32 |= 0x100000;
2435 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32);
2436
2437 if (bcm43xx_using_pio(bcm)) {
2438 bcm43xx_write32(bcm, 0x0210, 0x00000100);
2439 bcm43xx_write32(bcm, 0x0230, 0x00000100);
2440 bcm43xx_write32(bcm, 0x0250, 0x00000100);
2441 bcm43xx_write32(bcm, 0x0270, 0x00000100);
2442 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0034, 0x0000);
2443 }
2444
2445 /* Probe Response Timeout value */
2446 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2447 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0074, 0x0000);
2448
2449 /* Initially set the wireless operation mode. */
2450 bcm43xx_set_iwmode(bcm, bcm->ieee->iw_mode);
2451
2452 if (bcm->current_core->rev < 3) {
2453 bcm43xx_write16(bcm, 0x060E, 0x0000);
2454 bcm43xx_write16(bcm, 0x0610, 0x8000);
2455 bcm43xx_write16(bcm, 0x0604, 0x0000);
2456 bcm43xx_write16(bcm, 0x0606, 0x0200);
2457 } else {
2458 bcm43xx_write32(bcm, 0x0188, 0x80000000);
2459 bcm43xx_write32(bcm, 0x018C, 0x02000000);
2460 }
2461 bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, 0x00004000);
2462 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2463 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2464 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2465 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2466 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2467 bcm43xx_write32(bcm, BCM43xx_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2468
2469 value32 = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
2470 value32 |= 0x00100000;
2471 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, value32);
2472
2473 bcm43xx_write16(bcm, BCM43xx_MMIO_POWERUP_DELAY, bcm43xx_pctl_powerup_delay(bcm));
2474
2475 assert(err == 0);
2476 dprintk(KERN_INFO PFX "Chip initialized\n");
2477 out:
2478 return err;
2479
2480 err_radio_off:
2481 bcm43xx_radio_turn_off(bcm);
2482 err_gpio_cleanup:
2483 bcm43xx_gpio_cleanup(bcm);
2484 err_release_fw:
2485 bcm43xx_release_firmware(bcm, 1);
2486 goto out;
2487 }
2488
2489 /* Validate chip access
2490 * http://bcm-specs.sipsolutions.net/ValidateChipAccess */
2491 static int bcm43xx_validate_chip(struct bcm43xx_private *bcm)
2492 {
2493 u32 value;
2494 u32 shm_backup;
2495
2496 shm_backup = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, 0x0000);
2497 bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, 0x0000, 0xAA5555AA);
2498 if (bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, 0x0000) != 0xAA5555AA)
2499 goto error;
2500 bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, 0x0000, 0x55AAAA55);
2501 if (bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, 0x0000) != 0x55AAAA55)
2502 goto error;
2503 bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, 0x0000, shm_backup);
2504
2505 value = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2506 if ((value | 0x80000000) != 0x80000400)
2507 goto error;
2508
2509 value = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON);
2510 if (value != 0x00000000)
2511 goto error;
2512
2513 return 0;
2514 error:
2515 printk(KERN_ERR PFX "Failed to validate the chipaccess\n");
2516 return -ENODEV;
2517 }
2518
2519 static void bcm43xx_init_struct_phyinfo(struct bcm43xx_phyinfo *phy)
2520 {
2521 /* Initialize a "phyinfo" structure. The structure is already
2522 * zeroed out.
2523 * This is called on insmod time to initialize members.
2524 */
2525 phy->savedpctlreg = 0xFFFF;
2526 spin_lock_init(&phy->lock);
2527 }
2528
2529 static void bcm43xx_init_struct_radioinfo(struct bcm43xx_radioinfo *radio)
2530 {
2531 /* Initialize a "radioinfo" structure. The structure is already
2532 * zeroed out.
2533 * This is called on insmod time to initialize members.
2534 */
2535 radio->interfmode = BCM43xx_RADIO_INTERFMODE_NONE;
2536 radio->channel = 0xFF;
2537 radio->initial_channel = 0xFF;
2538 }
2539
2540 static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
2541 {
2542 int err, i;
2543 int current_core;
2544 u32 core_vendor, core_id, core_rev;
2545 u32 sb_id_hi, chip_id_32 = 0;
2546 u16 pci_device, chip_id_16;
2547 u8 core_count;
2548
2549 memset(&bcm->core_chipcommon, 0, sizeof(struct bcm43xx_coreinfo));
2550 memset(&bcm->core_pci, 0, sizeof(struct bcm43xx_coreinfo));
2551 memset(&bcm->core_80211, 0, sizeof(struct bcm43xx_coreinfo)
2552 * BCM43xx_MAX_80211_CORES);
2553 memset(&bcm->core_80211_ext, 0, sizeof(struct bcm43xx_coreinfo_80211)
2554 * BCM43xx_MAX_80211_CORES);
2555 bcm->nr_80211_available = 0;
2556 bcm->current_core = NULL;
2557 bcm->active_80211_core = NULL;
2558
2559 /* map core 0 */
2560 err = _switch_core(bcm, 0);
2561 if (err)
2562 goto out;
2563
2564 /* fetch sb_id_hi from core information registers */
2565 sb_id_hi = bcm43xx_read32(bcm, BCM43xx_CIR_SB_ID_HI);
2566
2567 core_id = (sb_id_hi & 0xFFF0) >> 4;
2568 core_rev = (sb_id_hi & 0xF);
2569 core_vendor = (sb_id_hi & 0xFFFF0000) >> 16;
2570
2571 /* if present, chipcommon is always core 0; read the chipid from it */
2572 if (core_id == BCM43xx_COREID_CHIPCOMMON) {
2573 chip_id_32 = bcm43xx_read32(bcm, 0);
2574 chip_id_16 = chip_id_32 & 0xFFFF;
2575 bcm->core_chipcommon.available = 1;
2576 bcm->core_chipcommon.id = core_id;
2577 bcm->core_chipcommon.rev = core_rev;
2578 bcm->core_chipcommon.index = 0;
2579 /* While we are at it, also read the capabilities. */
2580 bcm->chipcommon_capabilities = bcm43xx_read32(bcm, BCM43xx_CHIPCOMMON_CAPABILITIES);
2581 } else {
2582 /* without a chipCommon, use a hard coded table. */
2583 pci_device = bcm->pci_dev->device;
2584 if (pci_device == 0x4301)
2585 chip_id_16 = 0x4301;
2586 else if ((pci_device >= 0x4305) && (pci_device <= 0x4307))
2587 chip_id_16 = 0x4307;
2588 else if ((pci_device >= 0x4402) && (pci_device <= 0x4403))
2589 chip_id_16 = 0x4402;
2590 else if ((pci_device >= 0x4610) && (pci_device <= 0x4615))
2591 chip_id_16 = 0x4610;
2592 else if ((pci_device >= 0x4710) && (pci_device <= 0x4715))
2593 chip_id_16 = 0x4710;
2594 #ifdef CONFIG_BCM947XX
2595 else if ((pci_device >= 0x4320) && (pci_device <= 0x4325))
2596 chip_id_16 = 0x4309;
2597 #endif
2598 else {
2599 printk(KERN_ERR PFX "Could not determine Chip ID\n");
2600 return -ENODEV;
2601 }
2602 }
2603
2604 /* ChipCommon with Core Rev >=4 encodes number of cores,
2605 * otherwise consult hardcoded table */
2606 if ((core_id == BCM43xx_COREID_CHIPCOMMON) && (core_rev >= 4)) {
2607 core_count = (chip_id_32 & 0x0F000000) >> 24;
2608 } else {
2609 switch (chip_id_16) {
2610 case 0x4610:
2611 case 0x4704:
2612 case 0x4710:
2613 core_count = 9;
2614 break;
2615 case 0x4310:
2616 core_count = 8;
2617 break;
2618 case 0x5365:
2619 core_count = 7;
2620 break;
2621 case 0x4306:
2622 core_count = 6;
2623 break;
2624 case 0x4301:
2625 case 0x4307:
2626 core_count = 5;
2627 break;
2628 case 0x4402:
2629 core_count = 3;
2630 break;
2631 default:
2632 /* SOL if we get here */
2633 assert(0);
2634 core_count = 1;
2635 }
2636 }
2637
2638 bcm->chip_id = chip_id_16;
2639 bcm->chip_rev = (chip_id_32 & 0x000F0000) >> 16;
2640 bcm->chip_package = (chip_id_32 & 0x00F00000) >> 20;
2641
2642 dprintk(KERN_INFO PFX "Chip ID 0x%x, rev 0x%x\n",
2643 bcm->chip_id, bcm->chip_rev);
2644 dprintk(KERN_INFO PFX "Number of cores: %d\n", core_count);
2645 if (bcm->core_chipcommon.available) {
2646 dprintk(KERN_INFO PFX "Core 0: ID 0x%x, rev 0x%x, vendor 0x%x, %s\n",
2647 core_id, core_rev, core_vendor,
2648 bcm43xx_core_enabled(bcm) ? "enabled" : "disabled");
2649 }
2650
2651 if (bcm->core_chipcommon.available)
2652 current_core = 1;
2653 else
2654 current_core = 0;
2655 for ( ; current_core < core_count; current_core++) {
2656 struct bcm43xx_coreinfo *core;
2657 struct bcm43xx_coreinfo_80211 *ext_80211;
2658
2659 err = _switch_core(bcm, current_core);
2660 if (err)
2661 goto out;
2662 /* Gather information */
2663 /* fetch sb_id_hi from core information registers */
2664 sb_id_hi = bcm43xx_read32(bcm, BCM43xx_CIR_SB_ID_HI);
2665
2666 /* extract core_id, core_rev, core_vendor */
2667 core_id = (sb_id_hi & 0xFFF0) >> 4;
2668 core_rev = (sb_id_hi & 0xF);
2669 core_vendor = (sb_id_hi & 0xFFFF0000) >> 16;
2670
2671 dprintk(KERN_INFO PFX "Core %d: ID 0x%x, rev 0x%x, vendor 0x%x, %s\n",
2672 current_core, core_id, core_rev, core_vendor,
2673 bcm43xx_core_enabled(bcm) ? "enabled" : "disabled" );
2674
2675 core = NULL;
2676 switch (core_id) {
2677 case BCM43xx_COREID_PCI:
2678 core = &bcm->core_pci;
2679 if (core->available) {
2680 printk(KERN_WARNING PFX "Multiple PCI cores found.\n");
2681 continue;
2682 }
2683 break;
2684 case BCM43xx_COREID_80211:
2685 for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
2686 core = &(bcm->core_80211[i]);
2687 ext_80211 = &(bcm->core_80211_ext[i]);
2688 if (!core->available)
2689 break;
2690 core = NULL;
2691 }
2692 if (!core) {
2693 printk(KERN_WARNING PFX "More than %d cores of type 802.11 found.\n",
2694 BCM43xx_MAX_80211_CORES);
2695 continue;
2696 }
2697 if (i != 0) {
2698 /* More than one 80211 core is only supported
2699 * by special chips.
2700 * There are chips with two 80211 cores, but with
2701 * dangling pins on the second core. Be careful
2702 * and ignore these cores here.
2703 */
2704 if (bcm->pci_dev->device != 0x4324) {
2705 dprintk(KERN_INFO PFX "Ignoring additional 802.11 core.\n");
2706 continue;
2707 }
2708 }
2709 switch (core_rev) {
2710 case 2:
2711 case 4:
2712 case 5:
2713 case 6:
2714 case 7:
2715 case 9:
2716 break;
2717 default:
2718 printk(KERN_ERR PFX "Error: Unsupported 80211 core revision %u\n",
2719 core_rev);
2720 err = -ENODEV;
2721 goto out;
2722 }
2723 bcm->nr_80211_available++;
2724 core->priv = ext_80211;
2725 bcm43xx_init_struct_phyinfo(&ext_80211->phy);
2726 bcm43xx_init_struct_radioinfo(&ext_80211->radio);
2727 break;
2728 case BCM43xx_COREID_CHIPCOMMON:
2729 printk(KERN_WARNING PFX "Multiple CHIPCOMMON cores found.\n");
2730 break;
2731 }
2732 if (core) {
2733 core->available = 1;
2734 core->id = core_id;
2735 core->rev = core_rev;
2736 core->index = current_core;
2737 }
2738 }
2739
2740 if (!bcm->core_80211[0].available) {
2741 printk(KERN_ERR PFX "Error: No 80211 core found!\n");
2742 err = -ENODEV;
2743 goto out;
2744 }
2745
2746 err = bcm43xx_switch_core(bcm, &bcm->core_80211[0]);
2747
2748 assert(err == 0);
2749 out:
2750 return err;
2751 }
2752
2753 static void bcm43xx_gen_bssid(struct bcm43xx_private *bcm)
2754 {
2755 const u8 *mac = (const u8*)(bcm->net_dev->dev_addr);
2756 u8 *bssid = bcm->ieee->bssid;
2757
2758 switch (bcm->ieee->iw_mode) {
2759 case IW_MODE_ADHOC:
2760 random_ether_addr(bssid);
2761 break;
2762 case IW_MODE_MASTER:
2763 case IW_MODE_INFRA:
2764 case IW_MODE_REPEAT:
2765 case IW_MODE_SECOND:
2766 case IW_MODE_MONITOR:
2767 memcpy(bssid, mac, ETH_ALEN);
2768 break;
2769 default:
2770 assert(0);
2771 }
2772 }
2773
2774 static void bcm43xx_rate_memory_write(struct bcm43xx_private *bcm,
2775 u16 rate,
2776 int is_ofdm)
2777 {
2778 u16 offset;
2779
2780 if (is_ofdm) {
2781 offset = 0x480;
2782 offset += (bcm43xx_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2783 }
2784 else {
2785 offset = 0x4C0;
2786 offset += (bcm43xx_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2787 }
2788 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, offset + 0x20,
2789 bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, offset));
2790 }
2791
2792 static void bcm43xx_rate_memory_init(struct bcm43xx_private *bcm)
2793 {
2794 switch (bcm43xx_current_phy(bcm)->type) {
2795 case BCM43xx_PHYTYPE_A:
2796 case BCM43xx_PHYTYPE_G:
2797 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_6MB, 1);
2798 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_12MB, 1);
2799 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_18MB, 1);
2800 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_24MB, 1);
2801 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_36MB, 1);
2802 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_48MB, 1);
2803 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_54MB, 1);
2804 case BCM43xx_PHYTYPE_B:
2805 bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_1MB, 0);
2806 bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_2MB, 0);
2807 bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_5MB, 0);
2808 bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_11MB, 0);
2809 break;
2810 default:
2811 assert(0);
2812 }
2813 }
2814
2815 static void bcm43xx_wireless_core_cleanup(struct bcm43xx_private *bcm)
2816 {
2817 bcm43xx_chip_cleanup(bcm);
2818 bcm43xx_pio_free(bcm);
2819 bcm43xx_dma_free(bcm);
2820
2821 bcm->current_core->initialized = 0;
2822 }
2823
2824 /* http://bcm-specs.sipsolutions.net/80211Init */
2825 static int bcm43xx_wireless_core_init(struct bcm43xx_private *bcm,
2826 int active_wlcore)
2827 {
2828 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
2829 struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
2830 u32 ucodeflags;
2831 int err;
2832 u32 sbimconfiglow;
2833 u8 limit;
2834
2835 if (bcm->chip_rev < 5) {
2836 sbimconfiglow = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
2837 sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
2838 sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
2839 if (bcm->bustype == BCM43xx_BUSTYPE_PCI)
2840 sbimconfiglow |= 0x32;
2841 else if (bcm->bustype == BCM43xx_BUSTYPE_SB)
2842 sbimconfiglow |= 0x53;
2843 else
2844 assert(0);
2845 bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, sbimconfiglow);
2846 }
2847
2848 bcm43xx_phy_calibrate(bcm);
2849 err = bcm43xx_chip_init(bcm);
2850 if (err)
2851 goto out;
2852
2853 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0016, bcm->current_core->rev);
2854 ucodeflags = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, BCM43xx_UCODEFLAGS_OFFSET);
2855
2856 if (0 /*FIXME: which condition has to be used here? */)
2857 ucodeflags |= 0x00000010;
2858
2859 /* HW decryption needs to be set now */
2860 ucodeflags |= 0x40000000;
2861
2862 if (phy->type == BCM43xx_PHYTYPE_G) {
2863 ucodeflags |= BCM43xx_UCODEFLAG_UNKBGPHY;
2864 if (phy->rev == 1)
2865 ucodeflags |= BCM43xx_UCODEFLAG_UNKGPHY;
2866 if (bcm->sprom.boardflags & BCM43xx_BFL_PACTRL)
2867 ucodeflags |= BCM43xx_UCODEFLAG_UNKPACTRL;
2868 } else if (phy->type == BCM43xx_PHYTYPE_B) {
2869 ucodeflags |= BCM43xx_UCODEFLAG_UNKBGPHY;
2870 if (phy->rev >= 2 && radio->version == 0x2050)
2871 ucodeflags &= ~BCM43xx_UCODEFLAG_UNKGPHY;
2872 }
2873
2874 if (ucodeflags != bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
2875 BCM43xx_UCODEFLAGS_OFFSET)) {
2876 bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
2877 BCM43xx_UCODEFLAGS_OFFSET, ucodeflags);
2878 }
2879
2880 /* Short/Long Retry Limit.
2881 * The retry-limit is a 4-bit counter. Enforce this to avoid overflowing
2882 * the chip-internal counter.
2883 */
2884 limit = limit_value(modparam_short_retry, 0, 0xF);
2885 bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0006, limit);
2886 limit = limit_value(modparam_long_retry, 0, 0xF);
2887 bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0007, limit);
2888
2889 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0044, 3);
2890 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0046, 2);
2891
2892 bcm43xx_rate_memory_init(bcm);
2893
2894 /* Minimum Contention Window */
2895 if (phy->type == BCM43xx_PHYTYPE_B)
2896 bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0003, 0x0000001f);
2897 else
2898 bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0003, 0x0000000f);
2899 /* Maximum Contention Window */
2900 bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0004, 0x000003ff);
2901
2902 bcm43xx_gen_bssid(bcm);
2903 bcm43xx_write_mac_bssid_templates(bcm);
2904
2905 if (bcm->current_core->rev >= 5)
2906 bcm43xx_write16(bcm, 0x043C, 0x000C);
2907
2908 if (active_wlcore) {
2909 if (bcm43xx_using_pio(bcm))
2910 err = bcm43xx_pio_init(bcm);
2911 else
2912 err = bcm43xx_dma_init(bcm);
2913 if (err)
2914 goto err_chip_cleanup;
2915 }
2916 bcm43xx_write16(bcm, 0x0612, 0x0050);
2917 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0416, 0x0050);
2918 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0414, 0x01F4);
2919
2920 if (active_wlcore) {
2921 if (radio->initial_channel != 0xFF)
2922 bcm43xx_radio_selectchannel(bcm, radio->initial_channel, 0);
2923 }
2924
2925 /* Don't enable MAC/IRQ here, as it will race with the IRQ handler.
2926 * We enable it later.
2927 */
2928 bcm->current_core->initialized = 1;
2929 out:
2930 return err;
2931
2932 err_chip_cleanup:
2933 bcm43xx_chip_cleanup(bcm);
2934 goto out;
2935 }
2936
2937 static int bcm43xx_chipset_attach(struct bcm43xx_private *bcm)
2938 {
2939 int err;
2940 u16 pci_status;
2941
2942 err = bcm43xx_pctl_set_crystal(bcm, 1);
2943 if (err)
2944 goto out;
2945 bcm43xx_pci_read_config16(bcm, PCI_STATUS, &pci_status);
2946 bcm43xx_pci_write_config16(bcm, PCI_STATUS, pci_status & ~PCI_STATUS_SIG_TARGET_ABORT);
2947
2948 out:
2949 return err;
2950 }
2951
2952 static void bcm43xx_chipset_detach(struct bcm43xx_private *bcm)
2953 {
2954 bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_SLOW);
2955 bcm43xx_pctl_set_crystal(bcm, 0);
2956 }
2957
2958 static void bcm43xx_pcicore_broadcast_value(struct bcm43xx_private *bcm,
2959 u32 address,
2960 u32 data)
2961 {
2962 bcm43xx_write32(bcm, BCM43xx_PCICORE_BCAST_ADDR, address);
2963 bcm43xx_write32(bcm, BCM43xx_PCICORE_BCAST_DATA, data);
2964 }
2965
2966 static int bcm43xx_pcicore_commit_settings(struct bcm43xx_private *bcm)
2967 {
2968 int err;
2969 struct bcm43xx_coreinfo *old_core;
2970
2971 old_core = bcm->current_core;
2972 err = bcm43xx_switch_core(bcm, &bcm->core_pci);
2973 if (err)
2974 goto out;
2975
2976 bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000);
2977
2978 bcm43xx_switch_core(bcm, old_core);
2979 assert(err == 0);
2980 out:
2981 return err;
2982 }
2983
2984 /* Make an I/O Core usable. "core_mask" is the bitmask of the cores to enable.
2985 * To enable core 0, pass a core_mask of 1<<0
2986 */
2987 static int bcm43xx_setup_backplane_pci_connection(struct bcm43xx_private *bcm,
2988 u32 core_mask)
2989 {
2990 u32 backplane_flag_nr;
2991 u32 value;
2992 struct bcm43xx_coreinfo *old_core;
2993 int err = 0;
2994
2995 value = bcm43xx_read32(bcm, BCM43xx_CIR_SBTPSFLAG);
2996 backplane_flag_nr = value & BCM43xx_BACKPLANE_FLAG_NR_MASK;
2997
2998 old_core = bcm->current_core;
2999 err = bcm43xx_switch_core(bcm, &bcm->core_pci);
3000 if (err)
3001 goto out;
3002
3003 if (bcm->core_pci.rev < 6) {
3004 value = bcm43xx_read32(bcm, BCM43xx_CIR_SBINTVEC);
3005 value |= (1 << backplane_flag_nr);
3006 bcm43xx_write32(bcm, BCM43xx_CIR_SBINTVEC, value);
3007 } else {
3008 err = bcm43xx_pci_read_config32(bcm, BCM43xx_PCICFG_ICR, &value);
3009 if (err) {
3010 printk(KERN_ERR PFX "Error: ICR setup failure!\n");
3011 goto out_switch_back;
3012 }
3013 value |= core_mask << 8;
3014 err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_ICR, value);
3015 if (err) {
3016 printk(KERN_ERR PFX "Error: ICR setup failure!\n");
3017 goto out_switch_back;
3018 }
3019 }
3020
3021 value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2);
3022 value |= BCM43xx_SBTOPCI2_PREFETCH | BCM43xx_SBTOPCI2_BURST;
3023 bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
3024
3025 if (bcm->core_pci.rev < 5) {
3026 value = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
3027 value |= (2 << BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_SHIFT)
3028 & BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
3029 value |= (3 << BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_SHIFT)
3030 & BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
3031 bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, value);
3032 err = bcm43xx_pcicore_commit_settings(bcm);
3033 assert(err == 0);
3034 }
3035
3036 out_switch_back:
3037 err = bcm43xx_switch_core(bcm, old_core);
3038 out:
3039 return err;
3040 }
3041
3042 static void bcm43xx_periodic_every120sec(struct bcm43xx_private *bcm)
3043 {
3044 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
3045
3046 if (phy->type != BCM43xx_PHYTYPE_G || phy->rev < 2)
3047 return;
3048
3049 bcm43xx_mac_suspend(bcm);
3050 bcm43xx_phy_lo_g_measure(bcm);
3051 bcm43xx_mac_enable(bcm);
3052 }
3053
3054 static void bcm43xx_periodic_every60sec(struct bcm43xx_private *bcm)
3055 {
3056 bcm43xx_phy_lo_mark_all_unused(bcm);
3057 if (bcm->sprom.boardflags & BCM43xx_BFL_RSSI) {
3058 bcm43xx_mac_suspend(bcm);
3059 bcm43xx_calc_nrssi_slope(bcm);
3060 bcm43xx_mac_enable(bcm);
3061 }
3062 }
3063
3064 static void bcm43xx_periodic_every30sec(struct bcm43xx_private *bcm)
3065 {
3066 /* Update device statistics. */
3067 bcm43xx_calculate_link_quality(bcm);
3068 }
3069
3070 static void bcm43xx_periodic_every15sec(struct bcm43xx_private *bcm)
3071 {
3072 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
3073 struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
3074
3075 if (phy->type == BCM43xx_PHYTYPE_G) {
3076 //TODO: update_aci_moving_average
3077 if (radio->aci_enable && radio->aci_wlan_automatic) {
3078 bcm43xx_mac_suspend(bcm);
3079 if (!radio->aci_enable && 1 /*TODO: not scanning? */) {
3080 if (0 /*TODO: bunch of conditions*/) {
3081 bcm43xx_radio_set_interference_mitigation(bcm,
3082 BCM43xx_RADIO_INTERFMODE_MANUALWLAN);
3083 }
3084 } else if (1/*TODO*/) {
3085 /*
3086 if ((aci_average > 1000) && !(bcm43xx_radio_aci_scan(bcm))) {
3087 bcm43xx_radio_set_interference_mitigation(bcm,
3088 BCM43xx_RADIO_INTERFMODE_NONE);
3089 }
3090 */
3091 }
3092 bcm43xx_mac_enable(bcm);
3093 } else if (radio->interfmode == BCM43xx_RADIO_INTERFMODE_NONWLAN &&
3094 phy->rev == 1) {
3095 //TODO: implement rev1 workaround
3096 }
3097 }
3098 bcm43xx_phy_xmitpower(bcm); //FIXME: unless scanning?
3099 //TODO for APHY (temperature?)
3100 }
3101
3102 static void do_periodic_work(struct bcm43xx_private *bcm)
3103 {
3104 unsigned int state;
3105
3106 state = bcm->periodic_state;
3107 if (state % 8 == 0)
3108 bcm43xx_periodic_every120sec(bcm);
3109 if (state % 4 == 0)
3110 bcm43xx_periodic_every60sec(bcm);
3111 if (state % 2 == 0)
3112 bcm43xx_periodic_every30sec(bcm);
3113 if (state % 1 == 0)
3114 bcm43xx_periodic_every15sec(bcm);
3115 bcm->periodic_state = state + 1;
3116
3117 schedule_delayed_work(&bcm->periodic_work, HZ * 15);
3118 }
3119
3120 /* Estimate a "Badness" value based on the periodic work
3121 * state-machine state. "Badness" is worse (bigger), if the
3122 * periodic work will take longer.
3123 */
3124 static int estimate_periodic_work_badness(unsigned int state)
3125 {
3126 int badness = 0;
3127
3128 if (state % 8 == 0) /* every 120 sec */
3129 badness += 10;
3130 if (state % 4 == 0) /* every 60 sec */
3131 badness += 5;
3132 if (state % 2 == 0) /* every 30 sec */
3133 badness += 1;
3134 if (state % 1 == 0) /* every 15 sec */
3135 badness += 1;
3136
3137 #define BADNESS_LIMIT 4
3138 return badness;
3139 }
3140
3141 static void bcm43xx_periodic_work_handler(void *d)
3142 {
3143 struct bcm43xx_private *bcm = d;
3144 unsigned long flags;
3145 u32 savedirqs = 0;
3146 int badness;
3147
3148 badness = estimate_periodic_work_badness(bcm->periodic_state);
3149 if (badness > BADNESS_LIMIT) {
3150 /* Periodic work will take a long time, so we want it to
3151 * be preemtible.
3152 */
3153 netif_stop_queue(bcm->net_dev);
3154 synchronize_net();
3155 spin_lock_irqsave(&bcm->irq_lock, flags);
3156 bcm43xx_mac_suspend(bcm);
3157 if (bcm43xx_using_pio(bcm))
3158 bcm43xx_pio_freeze_txqueues(bcm);
3159 savedirqs = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
3160 spin_unlock_irqrestore(&bcm->irq_lock, flags);
3161 mutex_lock(&bcm->mutex);
3162 bcm43xx_synchronize_irq(bcm);
3163 } else {
3164 /* Periodic work should take short time, so we want low
3165 * locking overhead.
3166 */
3167 mutex_lock(&bcm->mutex);
3168 spin_lock_irqsave(&bcm->irq_lock, flags);
3169 }
3170
3171 do_periodic_work(bcm);
3172
3173 if (badness > BADNESS_LIMIT) {
3174 spin_lock_irqsave(&bcm->irq_lock, flags);
3175 if (likely(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)) {
3176 tasklet_enable(&bcm->isr_tasklet);
3177 bcm43xx_interrupt_enable(bcm, savedirqs);
3178 if (bcm43xx_using_pio(bcm))
3179 bcm43xx_pio_thaw_txqueues(bcm);
3180 bcm43xx_mac_enable(bcm);
3181 }
3182 netif_wake_queue(bcm->net_dev);
3183 }
3184 mmiowb();
3185 spin_unlock_irqrestore(&bcm->irq_lock, flags);
3186 mutex_unlock(&bcm->mutex);
3187 }
3188
3189 static void bcm43xx_periodic_tasks_delete(struct bcm43xx_private *bcm)
3190 {
3191 cancel_rearming_delayed_work(&bcm->periodic_work);
3192 }
3193
3194 static void bcm43xx_periodic_tasks_setup(struct bcm43xx_private *bcm)
3195 {
3196 struct work_struct *work = &(bcm->periodic_work);
3197
3198 assert(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
3199 INIT_WORK(work, bcm43xx_periodic_work_handler, bcm);
3200 schedule_work(work);
3201 }
3202
3203 static void bcm43xx_security_init(struct bcm43xx_private *bcm)
3204 {
3205 bcm->security_offset = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
3206 0x0056) * 2;
3207 bcm43xx_clear_keys(bcm);
3208 }
3209
3210 static int bcm43xx_rng_read(struct hwrng *rng, u32 *data)
3211 {
3212 struct bcm43xx_private *bcm = (struct bcm43xx_private *)rng->priv;
3213 unsigned long flags;
3214
3215 spin_lock_irqsave(&(bcm)->irq_lock, flags);
3216 *data = bcm43xx_read16(bcm, BCM43xx_MMIO_RNG);
3217 spin_unlock_irqrestore(&(bcm)->irq_lock, flags);
3218
3219 return (sizeof(u16));
3220 }
3221
3222 static void bcm43xx_rng_exit(struct bcm43xx_private *bcm)
3223 {
3224 hwrng_unregister(&bcm->rng);
3225 }
3226
3227 static int bcm43xx_rng_init(struct bcm43xx_private *bcm)
3228 {
3229 int err;
3230
3231 snprintf(bcm->rng_name, ARRAY_SIZE(bcm->rng_name),
3232 "%s_%s", KBUILD_MODNAME, bcm->net_dev->name);
3233 bcm->rng.name = bcm->rng_name;
3234 bcm->rng.data_read = bcm43xx_rng_read;
3235 bcm->rng.priv = (unsigned long)bcm;
3236 err = hwrng_register(&bcm->rng);
3237 if (err)
3238 printk(KERN_ERR PFX "RNG init failed (%d)\n", err);
3239
3240 return err;
3241 }
3242
3243 static int bcm43xx_shutdown_all_wireless_cores(struct bcm43xx_private *bcm)
3244 {
3245 int ret = 0;
3246 int i, err;
3247 struct bcm43xx_coreinfo *core;
3248
3249 bcm43xx_set_status(bcm, BCM43xx_STAT_SHUTTINGDOWN);
3250 for (i = 0; i < bcm->nr_80211_available; i++) {
3251 core = &(bcm->core_80211[i]);
3252 assert(core->available);
3253 if (!core->initialized)
3254 continue;
3255 err = bcm43xx_switch_core(bcm, core);
3256 if (err) {
3257 dprintk(KERN_ERR PFX "shutdown_all_wireless_cores "
3258 "switch_core failed (%d)\n", err);
3259 ret = err;
3260 continue;
3261 }
3262 bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
3263 bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */
3264 bcm43xx_wireless_core_cleanup(bcm);
3265 if (core == bcm->active_80211_core)
3266 bcm->active_80211_core = NULL;
3267 }
3268 free_irq(bcm->irq, bcm);
3269 bcm43xx_set_status(bcm, BCM43xx_STAT_UNINIT);
3270
3271 return ret;
3272 }
3273
3274 /* This is the opposite of bcm43xx_init_board() */
3275 static void bcm43xx_free_board(struct bcm43xx_private *bcm)
3276 {
3277 bcm43xx_rng_exit(bcm);
3278 bcm43xx_sysfs_unregister(bcm);
3279 bcm43xx_periodic_tasks_delete(bcm);
3280
3281 mutex_lock(&(bcm)->mutex);
3282 bcm43xx_shutdown_all_wireless_cores(bcm);
3283 bcm43xx_pctl_set_crystal(bcm, 0);
3284 mutex_unlock(&(bcm)->mutex);
3285 }
3286
3287 static void prepare_phydata_for_init(struct bcm43xx_phyinfo *phy)
3288 {
3289 phy->antenna_diversity = 0xFFFF;
3290 memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
3291 memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
3292
3293 /* Flags */
3294 phy->calibrated = 0;
3295 phy->is_locked = 0;
3296
3297 if (phy->_lo_pairs) {
3298 memset(phy->_lo_pairs, 0,
3299 sizeof(struct bcm43xx_lopair) * BCM43xx_LO_COUNT);
3300 }
3301 memset(phy->loopback_gain, 0, sizeof(phy->loopback_gain));
3302 }
3303
3304 static void prepare_radiodata_for_init(struct bcm43xx_private *bcm,
3305 struct bcm43xx_radioinfo *radio)
3306 {
3307 int i;
3308
3309 /* Set default attenuation values. */
3310 radio->baseband_atten = bcm43xx_default_baseband_attenuation(bcm);
3311 radio->radio_atten = bcm43xx_default_radio_attenuation(bcm);
3312 radio->txctl1 = bcm43xx_default_txctl1(bcm);
3313 radio->txctl2 = 0xFFFF;
3314 radio->txpwr_offset = 0;
3315
3316 /* NRSSI */
3317 radio->nrssislope = 0;
3318 for (i = 0; i < ARRAY_SIZE(radio->nrssi); i++)
3319 radio->nrssi[i] = -1000;
3320 for (i = 0; i < ARRAY_SIZE(radio->nrssi_lt); i++)
3321 radio->nrssi_lt[i] = i;
3322
3323 radio->lofcal = 0xFFFF;
3324 radio->initval = 0xFFFF;
3325
3326 radio->aci_enable = 0;
3327 radio->aci_wlan_automatic = 0;
3328 radio->aci_hw_rssi = 0;
3329 }
3330
3331 static void prepare_priv_for_init(struct bcm43xx_private *bcm)
3332 {
3333 int i;
3334 struct bcm43xx_coreinfo *core;
3335 struct bcm43xx_coreinfo_80211 *wlext;
3336
3337 assert(!bcm->active_80211_core);
3338
3339 bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZING);
3340
3341 /* Flags */
3342 bcm->was_initialized = 0;
3343 bcm->reg124_set_0x4 = 0;
3344
3345 /* Stats */
3346 memset(&bcm->stats, 0, sizeof(bcm->stats));
3347
3348 /* Wireless core data */
3349 for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
3350 core = &(bcm->core_80211[i]);
3351 wlext = core->priv;
3352
3353 if (!core->available)
3354 continue;
3355 assert(wlext == &(bcm->core_80211_ext[i]));
3356
3357 prepare_phydata_for_init(&wlext->phy);
3358 prepare_radiodata_for_init(bcm, &wlext->radio);
3359 }
3360
3361 /* IRQ related flags */
3362 bcm->irq_reason = 0;
3363 memset(bcm->dma_reason, 0, sizeof(bcm->dma_reason));
3364 bcm->irq_savedstate = BCM43xx_IRQ_INITIAL;
3365
3366 bcm->mac_suspended = 1;
3367
3368 /* Noise calculation context */
3369 memset(&bcm->noisecalc, 0, sizeof(bcm->noisecalc));
3370
3371 /* Periodic work context */
3372 bcm->periodic_state = 0;
3373 }
3374
3375 static int wireless_core_up(struct bcm43xx_private *bcm,
3376 int active_wlcore)
3377 {
3378 int err;
3379
3380 if (!bcm43xx_core_enabled(bcm))
3381 bcm43xx_wireless_core_reset(bcm, 1);
3382 if (!active_wlcore)
3383 bcm43xx_wireless_core_mark_inactive(bcm);
3384 err = bcm43xx_wireless_core_init(bcm, active_wlcore);
3385 if (err)
3386 goto out;
3387 if (!active_wlcore)
3388 bcm43xx_radio_turn_off(bcm);
3389 out:
3390 return err;
3391 }
3392
3393 /* Select and enable the "to be used" wireless core.
3394 * Locking: bcm->mutex must be aquired before calling this.
3395 * bcm->irq_lock must not be aquired.
3396 */
3397 int bcm43xx_select_wireless_core(struct bcm43xx_private *bcm,
3398 int phytype)
3399 {
3400 int i, err;
3401 struct bcm43xx_coreinfo *active_core = NULL;
3402 struct bcm43xx_coreinfo_80211 *active_wlext = NULL;
3403 struct bcm43xx_coreinfo *core;
3404 struct bcm43xx_coreinfo_80211 *wlext;
3405 int adjust_active_sbtmstatelow = 0;
3406
3407 might_sleep();
3408
3409 if (phytype < 0) {
3410 /* If no phytype is requested, select the first core. */
3411 assert(bcm->core_80211[0].available);
3412 wlext = bcm->core_80211[0].priv;
3413 phytype = wlext->phy.type;
3414 }
3415 /* Find the requested core. */
3416 for (i = 0; i < bcm->nr_80211_available; i++) {
3417 core = &(bcm->core_80211[i]);
3418 wlext = core->priv;
3419 if (wlext->phy.type == phytype) {
3420 active_core = core;
3421 active_wlext = wlext;
3422 break;
3423 }
3424 }
3425 if (!active_core)
3426 return -ESRCH; /* No such PHYTYPE on this board. */
3427
3428 if (bcm->active_80211_core) {
3429 /* We already selected a wl core in the past.
3430 * So first clean up everything.
3431 */
3432 dprintk(KERN_INFO PFX "select_wireless_core: cleanup\n");
3433 ieee80211softmac_stop(bcm->net_dev);
3434 bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZED);
3435 err = bcm43xx_disable_interrupts_sync(bcm);
3436 assert(!err);
3437 tasklet_enable(&bcm->isr_tasklet);
3438 err = bcm43xx_shutdown_all_wireless_cores(bcm);
3439 if (err)
3440 goto error;
3441 /* Ok, everything down, continue to re-initialize. */
3442 bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZING);
3443 }
3444
3445 /* Reset all data structures. */
3446 prepare_priv_for_init(bcm);
3447
3448 err = bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_FAST);
3449 if (err)
3450 goto error;
3451
3452 /* Mark all unused cores "inactive". */
3453 for (i = 0; i < bcm->nr_80211_available; i++) {
3454 core = &(bcm->core_80211[i]);
3455 wlext = core->priv;
3456
3457 if (core == active_core)
3458 continue;
3459 err = bcm43xx_switch_core(bcm, core);
3460 if (err) {
3461 dprintk(KERN_ERR PFX "Could not switch to inactive "
3462 "802.11 core (%d)\n", err);
3463 goto error;
3464 }
3465 err = wireless_core_up(bcm, 0);
3466 if (err) {
3467 dprintk(KERN_ERR PFX "core_up for inactive 802.11 core "
3468 "failed (%d)\n", err);
3469 goto error;
3470 }
3471 adjust_active_sbtmstatelow = 1;
3472 }
3473
3474 /* Now initialize the active 802.11 core. */
3475 err = bcm43xx_switch_core(bcm, active_core);
3476 if (err) {
3477 dprintk(KERN_ERR PFX "Could not switch to active "
3478 "802.11 core (%d)\n", err);
3479 goto error;
3480 }
3481 if (adjust_active_sbtmstatelow &&
3482 active_wlext->phy.type == BCM43xx_PHYTYPE_G) {
3483 u32 sbtmstatelow;
3484
3485 sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
3486 sbtmstatelow |= 0x20000000;
3487 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
3488 }
3489 err = wireless_core_up(bcm, 1);
3490 if (err) {
3491 dprintk(KERN_ERR PFX "core_up for active 802.11 core "
3492 "failed (%d)\n", err);
3493 goto error;
3494 }
3495 err = bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_DYNAMIC);
3496 if (err)
3497 goto error;
3498 bcm->active_80211_core = active_core;
3499
3500 bcm43xx_macfilter_clear(bcm, BCM43xx_MACFILTER_ASSOC);
3501 bcm43xx_macfilter_set(bcm, BCM43xx_MACFILTER_SELF, (u8 *)(bcm->net_dev->dev_addr));
3502 bcm43xx_security_init(bcm);
3503 ieee80211softmac_start(bcm->net_dev);
3504
3505 /* Let's go! Be careful after enabling the IRQs.
3506 * Don't switch cores, for example.
3507 */
3508 bcm43xx_mac_enable(bcm);
3509 bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZED);
3510 err = bcm43xx_initialize_irq(bcm);
3511 if (err)
3512 goto error;
3513 bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate);
3514
3515 dprintk(KERN_INFO PFX "Selected 802.11 core (phytype %d)\n",
3516 active_wlext->phy.type);
3517
3518 return 0;
3519
3520 error:
3521 bcm43xx_set_status(bcm, BCM43xx_STAT_UNINIT);
3522 bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_SLOW);
3523 return err;
3524 }
3525
3526 static int bcm43xx_init_board(struct bcm43xx_private *bcm)
3527 {
3528 int err;
3529
3530 mutex_lock(&(bcm)->mutex);
3531
3532 tasklet_enable(&bcm->isr_tasklet);
3533 err = bcm43xx_pctl_set_crystal(bcm, 1);
3534 if (err)
3535 goto err_tasklet;
3536 err = bcm43xx_pctl_init(bcm);
3537 if (err)
3538 goto err_crystal_off;
3539 err = bcm43xx_select_wireless_core(bcm, -1);
3540 if (err)
3541 goto err_crystal_off;
3542
3543 bcm43xx_periodic_tasks_setup(bcm);
3544 err = bcm43xx_sysfs_register(bcm);
3545 if (err)
3546 goto err_wlshutdown;
3547 err = bcm43xx_rng_init(bcm);
3548 if (err)
3549 goto err_sysfs_unreg;
3550
3551 /*FIXME: This should be handled by softmac instead. */
3552 schedule_work(&bcm->softmac->associnfo.work);
3553
3554 out:
3555 mutex_unlock(&(bcm)->mutex);
3556
3557 return err;
3558
3559 err_sysfs_unreg:
3560 bcm43xx_sysfs_unregister(bcm);
3561 err_wlshutdown:
3562 bcm43xx_shutdown_all_wireless_cores(bcm);
3563 err_crystal_off:
3564 bcm43xx_pctl_set_crystal(bcm, 0);
3565 err_tasklet:
3566 tasklet_disable(&bcm->isr_tasklet);
3567 goto out;
3568 }
3569
3570 static void bcm43xx_detach_board(struct bcm43xx_private *bcm)
3571 {
3572 struct pci_dev *pci_dev = bcm->pci_dev;
3573 int i;
3574
3575 bcm43xx_chipset_detach(bcm);
3576 /* Do _not_ access the chip, after it is detached. */
3577 pci_iounmap(pci_dev, bcm->mmio_addr);
3578 pci_release_regions(pci_dev);
3579 pci_disable_device(pci_dev);
3580
3581 /* Free allocated structures/fields */
3582 for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
3583 kfree(bcm->core_80211_ext[i].phy._lo_pairs);
3584 if (bcm->core_80211_ext[i].phy.dyn_tssi_tbl)
3585 kfree(bcm->core_80211_ext[i].phy.tssi2dbm);
3586 }
3587 }
3588
3589 static int bcm43xx_read_phyinfo(struct bcm43xx_private *bcm)
3590 {
3591 struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
3592 u16 value;
3593 u8 phy_version;
3594 u8 phy_type;
3595 u8 phy_rev;
3596 int phy_rev_ok = 1;
3597 void *p;
3598
3599 value = bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_VER);
3600
3601 phy_version = (value & 0xF000) >> 12;
3602 phy_type = (value & 0x0F00) >> 8;
3603 phy_rev = (value & 0x000F);
3604
3605 dprintk(KERN_INFO PFX "Detected PHY: Version: %x, Type %x, Revision %x\n",
3606 phy_version, phy_type, phy_rev);
3607
3608 switch (phy_type) {
3609 case BCM43xx_PHYTYPE_A:
3610 if (phy_rev >= 4)
3611 phy_rev_ok = 0;
3612 /*FIXME: We need to switch the ieee->modulation, etc.. flags,
3613 * if we switch 80211 cores after init is done.
3614 * As we do not implement on the fly switching between
3615 * wireless cores, I will leave this as a future task.
3616 */
3617 bcm->ieee->modulation = IEEE80211_OFDM_MODULATION;
3618 bcm->ieee->mode = IEEE_A;
3619 bcm->ieee->freq_band = IEEE80211_52GHZ_BAND |
3620 IEEE80211_24GHZ_BAND;
3621 break;
3622 case BCM43xx_PHYTYPE_B:
3623 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 && phy_rev != 7)
3624 phy_rev_ok = 0;
3625 bcm->ieee->modulation = IEEE80211_CCK_MODULATION;
3626 bcm->ieee->mode = IEEE_B;
3627 bcm->ieee->freq_band = IEEE80211_24GHZ_BAND;
3628 break;
3629 case BCM43xx_PHYTYPE_G:
3630 if (phy_rev > 7)
3631 phy_rev_ok = 0;
3632 bcm->ieee->modulation = IEEE80211_OFDM_MODULATION |
3633 IEEE80211_CCK_MODULATION;
3634 bcm->ieee->mode = IEEE_G;
3635 bcm->ieee->freq_band = IEEE80211_24GHZ_BAND;
3636 break;
3637 default:
3638 printk(KERN_ERR PFX "Error: Unknown PHY Type %x\n",
3639 phy_type);
3640 return -ENODEV;
3641 };
3642 if (!phy_rev_ok) {
3643 printk(KERN_WARNING PFX "Invalid PHY Revision %x\n",
3644 phy_rev);
3645 }
3646
3647 phy->version = phy_version;
3648 phy->type = phy_type;
3649 phy->rev = phy_rev;
3650 if ((phy_type == BCM43xx_PHYTYPE_B) || (phy_type == BCM43xx_PHYTYPE_G)) {
3651 p = kzalloc(sizeof(struct bcm43xx_lopair) * BCM43xx_LO_COUNT,
3652 GFP_KERNEL);
3653 if (!p)
3654 return -ENOMEM;
3655 phy->_lo_pairs = p;
3656 }
3657
3658 return 0;
3659 }
3660
3661 static int bcm43xx_attach_board(struct bcm43xx_private *bcm)
3662 {
3663 struct pci_dev *pci_dev = bcm->pci_dev;
3664 struct net_device *net_dev = bcm->net_dev;
3665 int err;
3666 int i;
3667 u32 coremask;
3668
3669 err = pci_enable_device(pci_dev);
3670 if (err) {
3671 printk(KERN_ERR PFX "pci_enable_device() failed\n");
3672 goto out;
3673 }
3674 err = pci_request_regions(pci_dev, KBUILD_MODNAME);
3675 if (err) {
3676 printk(KERN_ERR PFX "pci_request_regions() failed\n");
3677 goto err_pci_disable;
3678 }
3679 /* enable PCI bus-mastering */
3680 pci_set_master(pci_dev);
3681 bcm->mmio_addr = pci_iomap(pci_dev, 0, ~0UL);
3682 if (!bcm->mmio_addr) {
3683 printk(KERN_ERR PFX "pci_iomap() failed\n");
3684 err = -EIO;
3685 goto err_pci_release;
3686 }
3687 net_dev->base_addr = (unsigned long)bcm->mmio_addr;
3688
3689 bcm43xx_pci_read_config16(bcm, PCI_SUBSYSTEM_VENDOR_ID,
3690 &bcm->board_vendor);
3691 bcm43xx_pci_read_config16(bcm, PCI_SUBSYSTEM_ID,
3692 &bcm->board_type);
3693 bcm43xx_pci_read_config16(bcm, PCI_REVISION_ID,
3694 &bcm->board_revision);
3695
3696 err = bcm43xx_chipset_attach(bcm);
3697 if (err)
3698 goto err_iounmap;
3699 err = bcm43xx_pctl_init(bcm);
3700 if (err)
3701 goto err_chipset_detach;
3702 err = bcm43xx_probe_cores(bcm);
3703 if (err)
3704 goto err_chipset_detach;
3705
3706 /* Attach all IO cores to the backplane. */
3707 coremask = 0;
3708 for (i = 0; i < bcm->nr_80211_available; i++)
3709 coremask |= (1 << bcm->core_80211[i].index);
3710 //FIXME: Also attach some non80211 cores?
3711 err = bcm43xx_setup_backplane_pci_connection(bcm, coremask);
3712 if (err) {
3713 printk(KERN_ERR PFX "Backplane->PCI connection failed!\n");
3714 goto err_chipset_detach;
3715 }
3716
3717 err = bcm43xx_sprom_extract(bcm);
3718 if (err)
3719 goto err_chipset_detach;
3720 err = bcm43xx_leds_init(bcm);
3721 if (err)
3722 goto err_chipset_detach;
3723
3724 for (i = 0; i < bcm->nr_80211_available; i++) {
3725 err = bcm43xx_switch_core(bcm, &bcm->core_80211[i]);
3726 assert(err != -ENODEV);
3727 if (err)
3728 goto err_80211_unwind;
3729
3730 /* Enable the selected wireless core.
3731 * Connect PHY only on the first core.
3732 */
3733 bcm43xx_wireless_core_reset(bcm, (i == 0));
3734
3735 err = bcm43xx_read_phyinfo(bcm);
3736 if (err && (i == 0))
3737 goto err_80211_unwind;
3738
3739 err = bcm43xx_read_radioinfo(bcm);
3740 if (err && (i == 0))
3741 goto err_80211_unwind;
3742
3743 err = bcm43xx_validate_chip(bcm);
3744 if (err && (i == 0))
3745 goto err_80211_unwind;
3746
3747 bcm43xx_radio_turn_off(bcm);
3748 err = bcm43xx_phy_init_tssi2dbm_table(bcm);
3749 if (err)
3750 goto err_80211_unwind;
3751 bcm43xx_wireless_core_disable(bcm);
3752 }
3753 err = bcm43xx_geo_init(bcm);
3754 if (err)
3755 goto err_80211_unwind;
3756 bcm43xx_pctl_set_crystal(bcm, 0);
3757
3758 /* Set the MAC address in the networking subsystem */
3759 if (is_valid_ether_addr(bcm->sprom.et1macaddr))
3760 memcpy(bcm->net_dev->dev_addr, bcm->sprom.et1macaddr, 6);
3761 else
3762 memcpy(bcm->net_dev->dev_addr, bcm->sprom.il0macaddr, 6);
3763
3764 snprintf(bcm->nick, IW_ESSID_MAX_SIZE,
3765 "Broadcom %04X", bcm->chip_id);
3766
3767 assert(err == 0);
3768 out:
3769 return err;
3770
3771 err_80211_unwind:
3772 for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
3773 kfree(bcm->core_80211_ext[i].phy._lo_pairs);
3774 if (bcm->core_80211_ext[i].phy.dyn_tssi_tbl)
3775 kfree(bcm->core_80211_ext[i].phy.tssi2dbm);
3776 }
3777 err_chipset_detach:
3778 bcm43xx_chipset_detach(bcm);
3779 err_iounmap:
3780 pci_iounmap(pci_dev, bcm->mmio_addr);
3781 err_pci_release:
3782 pci_release_regions(pci_dev);
3783 err_pci_disable:
3784 pci_disable_device(pci_dev);
3785 goto out;
3786 }
3787
3788 /* Do the Hardware IO operations to send the txb */
3789 static inline int bcm43xx_tx(struct bcm43xx_private *bcm,
3790 struct ieee80211_txb *txb)
3791 {
3792 int err = -ENODEV;
3793
3794 if (bcm43xx_using_pio(bcm))
3795 err = bcm43xx_pio_tx(bcm, txb);
3796 else
3797 err = bcm43xx_dma_tx(bcm, txb);
3798 bcm->net_dev->trans_start = jiffies;
3799
3800 return err;
3801 }
3802
3803 static void bcm43xx_ieee80211_set_chan(struct net_device *net_dev,
3804 u8 channel)
3805 {
3806 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
3807 struct bcm43xx_radioinfo *radio;
3808 unsigned long flags;
3809
3810 mutex_lock(&bcm->mutex);
3811 spin_lock_irqsave(&bcm->irq_lock, flags);
3812 if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
3813 bcm43xx_mac_suspend(bcm);
3814 bcm43xx_radio_selectchannel(bcm, channel, 0);
3815 bcm43xx_mac_enable(bcm);
3816 } else {
3817 radio = bcm43xx_current_radio(bcm);
3818 radio->initial_channel = channel;
3819 }
3820 spin_unlock_irqrestore(&bcm->irq_lock, flags);
3821 mutex_unlock(&bcm->mutex);
3822 }
3823
3824 /* set_security() callback in struct ieee80211_device */
3825 static void bcm43xx_ieee80211_set_security(struct net_device *net_dev,
3826 struct ieee80211_security *sec)
3827 {
3828 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
3829 struct ieee80211_security *secinfo = &bcm->ieee->sec;
3830 unsigned long flags;
3831 int keyidx;
3832
3833 dprintk(KERN_INFO PFX "set security called");
3834
3835 mutex_lock(&bcm->mutex);
3836 spin_lock_irqsave(&bcm->irq_lock, flags);
3837
3838 for (keyidx = 0; keyidx<WEP_KEYS; keyidx++)
3839 if (sec->flags & (1<<keyidx)) {
3840 secinfo->encode_alg[keyidx] = sec->encode_alg[keyidx];
3841 secinfo->key_sizes[keyidx] = sec->key_sizes[keyidx];
3842 memcpy(secinfo->keys[keyidx], sec->keys[keyidx], SCM_KEY_LEN);
3843 }
3844
3845 if (sec->flags & SEC_ACTIVE_KEY) {
3846 secinfo->active_key = sec->active_key;
3847 dprintk(", .active_key = %d", sec->active_key);
3848 }
3849 if (sec->flags & SEC_UNICAST_GROUP) {
3850 secinfo->unicast_uses_group = sec->unicast_uses_group;
3851 dprintk(", .unicast_uses_group = %d", sec->unicast_uses_group);
3852 }
3853 if (sec->flags & SEC_LEVEL) {
3854 secinfo->level = sec->level;
3855 dprintk(", .level = %d", sec->level);
3856 }
3857 if (sec->flags & SEC_ENABLED) {
3858 secinfo->enabled = sec->enabled;
3859 dprintk(", .enabled = %d", sec->enabled);
3860 }
3861 if (sec->flags & SEC_ENCRYPT) {
3862 secinfo->encrypt = sec->encrypt;
3863 dprintk(", .encrypt = %d", sec->encrypt);
3864 }
3865 if (sec->flags & SEC_AUTH_MODE) {
3866 secinfo->auth_mode = sec->auth_mode;
3867 dprintk(", .auth_mode = %d", sec->auth_mode);
3868 }
3869 dprintk("\n");
3870 if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED &&
3871 !bcm->ieee->host_encrypt) {
3872 if (secinfo->enabled) {
3873 /* upload WEP keys to hardware */
3874 char null_address[6] = { 0 };
3875 u8 algorithm = 0;
3876 for (keyidx = 0; keyidx<WEP_KEYS; keyidx++) {
3877 if (!(sec->flags & (1<<keyidx)))
3878 continue;
3879 switch (sec->encode_alg[keyidx]) {
3880 case SEC_ALG_NONE: algorithm = BCM43xx_SEC_ALGO_NONE; break;
3881 case SEC_ALG_WEP:
3882 algorithm = BCM43xx_SEC_ALGO_WEP;
3883 if (secinfo->key_sizes[keyidx] == 13)
3884 algorithm = BCM43xx_SEC_ALGO_WEP104;
3885 break;
3886 case SEC_ALG_TKIP:
3887 FIXME();
3888 algorithm = BCM43xx_SEC_ALGO_TKIP;
3889 break;
3890 case SEC_ALG_CCMP:
3891 FIXME();
3892 algorithm = BCM43xx_SEC_ALGO_AES;
3893 break;
3894 default:
3895 assert(0);
3896 break;
3897 }
3898 bcm43xx_key_write(bcm, keyidx, algorithm, sec->keys[keyidx], secinfo->key_sizes[keyidx], &null_address[0]);
3899 bcm->key[keyidx].enabled = 1;
3900 bcm->key[keyidx].algorithm = algorithm;
3901 }
3902 } else
3903 bcm43xx_clear_keys(bcm);
3904 }
3905 spin_unlock_irqrestore(&bcm->irq_lock, flags);
3906 mutex_unlock(&bcm->mutex);
3907 }
3908
3909 /* hard_start_xmit() callback in struct ieee80211_device */
3910 static int bcm43xx_ieee80211_hard_start_xmit(struct ieee80211_txb *txb,
3911 struct net_device *net_dev,
3912 int pri)
3913 {
3914 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
3915 int err = -ENODEV;
3916 unsigned long flags;
3917
3918 spin_lock_irqsave(&bcm->irq_lock, flags);
3919 if (likely(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED))
3920 err = bcm43xx_tx(bcm, txb);
3921 spin_unlock_irqrestore(&bcm->irq_lock, flags);
3922
3923 if (unlikely(err))
3924 return NETDEV_TX_BUSY;
3925 return NETDEV_TX_OK;
3926 }
3927
3928 static struct net_device_stats * bcm43xx_net_get_stats(struct net_device *net_dev)
3929 {
3930 return &(bcm43xx_priv(net_dev)->ieee->stats);
3931 }
3932
3933 static void bcm43xx_net_tx_timeout(struct net_device *net_dev)
3934 {
3935 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
3936 unsigned long flags;
3937
3938 spin_lock_irqsave(&bcm->irq_lock, flags);
3939 bcm43xx_controller_restart(bcm, "TX timeout");
3940 spin_unlock_irqrestore(&bcm->irq_lock, flags);
3941 }
3942
3943 #ifdef CONFIG_NET_POLL_CONTROLLER
3944 static void bcm43xx_net_poll_controller(struct net_device *net_dev)
3945 {
3946 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
3947 unsigned long flags;
3948
3949 local_irq_save(flags);
3950 if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)
3951 bcm43xx_interrupt_handler(bcm->irq, bcm, NULL);
3952 local_irq_restore(flags);
3953 }
3954 #endif /* CONFIG_NET_POLL_CONTROLLER */
3955
3956 static int bcm43xx_net_open(struct net_device *net_dev)
3957 {
3958 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
3959
3960 return bcm43xx_init_board(bcm);
3961 }
3962
3963 static int bcm43xx_net_stop(struct net_device *net_dev)
3964 {
3965 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
3966 int err;
3967
3968 ieee80211softmac_stop(net_dev);
3969 err = bcm43xx_disable_interrupts_sync(bcm);
3970 assert(!err);
3971 bcm43xx_free_board(bcm);
3972
3973 return 0;
3974 }
3975
3976 static int bcm43xx_init_private(struct bcm43xx_private *bcm,
3977 struct net_device *net_dev,
3978 struct pci_dev *pci_dev)
3979 {
3980 int err;
3981
3982 bcm43xx_set_status(bcm, BCM43xx_STAT_UNINIT);
3983 bcm->ieee = netdev_priv(net_dev);
3984 bcm->softmac = ieee80211_priv(net_dev);
3985 bcm->softmac->set_channel = bcm43xx_ieee80211_set_chan;
3986
3987 bcm->irq_savedstate = BCM43xx_IRQ_INITIAL;
3988 bcm->mac_suspended = 1;
3989 bcm->pci_dev = pci_dev;
3990 bcm->net_dev = net_dev;
3991 bcm->bad_frames_preempt = modparam_bad_frames_preempt;
3992 spin_lock_init(&bcm->irq_lock);
3993 spin_lock_init(&bcm->leds_lock);
3994 mutex_init(&bcm->mutex);
3995 tasklet_init(&bcm->isr_tasklet,
3996 (void (*)(unsigned long))bcm43xx_interrupt_tasklet,
3997 (unsigned long)bcm);
3998 tasklet_disable_nosync(&bcm->isr_tasklet);
3999 if (modparam_pio) {
4000 bcm->__using_pio = 1;
4001 } else {
4002 err = pci_set_dma_mask(pci_dev, DMA_30BIT_MASK);
4003 err |= pci_set_consistent_dma_mask(pci_dev, DMA_30BIT_MASK);
4004 if (err) {
4005 #ifdef CONFIG_BCM43XX_PIO
4006 printk(KERN_WARNING PFX "DMA not supported. Falling back to PIO.\n");
4007 bcm->__using_pio = 1;
4008 #else
4009 printk(KERN_ERR PFX "FATAL: DMA not supported and PIO not configured. "
4010 "Recompile the driver with PIO support, please.\n");
4011 return -ENODEV;
4012 #endif /* CONFIG_BCM43XX_PIO */
4013 }
4014 }
4015 bcm->rts_threshold = BCM43xx_DEFAULT_RTS_THRESHOLD;
4016
4017 /* default to sw encryption for now */
4018 bcm->ieee->host_build_iv = 0;
4019 bcm->ieee->host_encrypt = 1;
4020 bcm->ieee->host_decrypt = 1;
4021
4022 bcm->ieee->iw_mode = BCM43xx_INITIAL_IWMODE;
4023 bcm->ieee->tx_headroom = sizeof(struct bcm43xx_txhdr);
4024 bcm->ieee->set_security = bcm43xx_ieee80211_set_security;
4025 bcm->ieee->hard_start_xmit = bcm43xx_ieee80211_hard_start_xmit;
4026
4027 return 0;
4028 }
4029
4030 static int __devinit bcm43xx_init_one(struct pci_dev *pdev,
4031 const struct pci_device_id *ent)
4032 {
4033 struct net_device *net_dev;
4034 struct bcm43xx_private *bcm;
4035 int err;
4036
4037 #ifdef CONFIG_BCM947XX
4038 if ((pdev->bus->number == 0) && (pdev->device != 0x0800))
4039 return -ENODEV;
4040 #endif
4041
4042 #ifdef DEBUG_SINGLE_DEVICE_ONLY
4043 if (strcmp(pci_name(pdev), DEBUG_SINGLE_DEVICE_ONLY))
4044 return -ENODEV;
4045 #endif
4046
4047 net_dev = alloc_ieee80211softmac(sizeof(*bcm));
4048 if (!net_dev) {
4049 printk(KERN_ERR PFX
4050 "could not allocate ieee80211 device %s\n",
4051 pci_name(pdev));
4052 err = -ENOMEM;
4053 goto out;
4054 }
4055 /* initialize the net_device struct */
4056 SET_MODULE_OWNER(net_dev);
4057 SET_NETDEV_DEV(net_dev, &pdev->dev);
4058
4059 net_dev->open = bcm43xx_net_open;
4060 net_dev->stop = bcm43xx_net_stop;
4061 net_dev->get_stats = bcm43xx_net_get_stats;
4062 net_dev->tx_timeout = bcm43xx_net_tx_timeout;
4063 #ifdef CONFIG_NET_POLL_CONTROLLER
4064 net_dev->poll_controller = bcm43xx_net_poll_controller;
4065 #endif
4066 net_dev->wireless_handlers = &bcm43xx_wx_handlers_def;
4067 net_dev->irq = pdev->irq;
4068 SET_ETHTOOL_OPS(net_dev, &bcm43xx_ethtool_ops);
4069
4070 /* initialize the bcm43xx_private struct */
4071 bcm = bcm43xx_priv(net_dev);
4072 memset(bcm, 0, sizeof(*bcm));
4073 err = bcm43xx_init_private(bcm, net_dev, pdev);
4074 if (err)
4075 goto err_free_netdev;
4076
4077 pci_set_drvdata(pdev, net_dev);
4078
4079 err = bcm43xx_attach_board(bcm);
4080 if (err)
4081 goto err_free_netdev;
4082
4083 err = register_netdev(net_dev);
4084 if (err) {
4085 printk(KERN_ERR PFX "Cannot register net device, "
4086 "aborting.\n");
4087 err = -ENOMEM;
4088 goto err_detach_board;
4089 }
4090
4091 bcm43xx_debugfs_add_device(bcm);
4092
4093 assert(err == 0);
4094 out:
4095 return err;
4096
4097 err_detach_board:
4098 bcm43xx_detach_board(bcm);
4099 err_free_netdev:
4100 free_ieee80211softmac(net_dev);
4101 goto out;
4102 }
4103
4104 static void __devexit bcm43xx_remove_one(struct pci_dev *pdev)
4105 {
4106 struct net_device *net_dev = pci_get_drvdata(pdev);
4107 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4108
4109 bcm43xx_debugfs_remove_device(bcm);
4110 unregister_netdev(net_dev);
4111 bcm43xx_detach_board(bcm);
4112 free_ieee80211softmac(net_dev);
4113 }
4114
4115 /* Hard-reset the chip. Do not call this directly.
4116 * Use bcm43xx_controller_restart()
4117 */
4118 static void bcm43xx_chip_reset(void *_bcm)
4119 {
4120 struct bcm43xx_private *bcm = _bcm;
4121 struct bcm43xx_phyinfo *phy;
4122 int err;
4123
4124 mutex_lock(&(bcm)->mutex);
4125 phy = bcm43xx_current_phy(bcm);
4126 err = bcm43xx_select_wireless_core(bcm, phy->type);
4127 mutex_unlock(&(bcm)->mutex);
4128
4129 printk(KERN_ERR PFX "Controller restart%s\n",
4130 (err == 0) ? "ed" : " failed");
4131 }
4132
4133 /* Hard-reset the chip.
4134 * This can be called from interrupt or process context.
4135 */
4136 void bcm43xx_controller_restart(struct bcm43xx_private *bcm, const char *reason)
4137 {
4138 assert(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
4139 bcm43xx_set_status(bcm, BCM43xx_STAT_RESTARTING);
4140 printk(KERN_ERR PFX "Controller RESET (%s) ...\n", reason);
4141 INIT_WORK(&bcm->restart_work, bcm43xx_chip_reset, bcm);
4142 schedule_work(&bcm->restart_work);
4143 }
4144
4145 #ifdef CONFIG_PM
4146
4147 static int bcm43xx_suspend(struct pci_dev *pdev, pm_message_t state)
4148 {
4149 struct net_device *net_dev = pci_get_drvdata(pdev);
4150 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4151 int err;
4152
4153 dprintk(KERN_INFO PFX "Suspending...\n");
4154
4155 netif_device_detach(net_dev);
4156 bcm->was_initialized = 0;
4157 if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
4158 bcm->was_initialized = 1;
4159 ieee80211softmac_stop(net_dev);
4160 err = bcm43xx_disable_interrupts_sync(bcm);
4161 if (unlikely(err)) {
4162 dprintk(KERN_ERR PFX "Suspend failed.\n");
4163 return -EAGAIN;
4164 }
4165 bcm->firmware_norelease = 1;
4166 bcm43xx_free_board(bcm);
4167 bcm->firmware_norelease = 0;
4168 }
4169 bcm43xx_chipset_detach(bcm);
4170
4171 pci_save_state(pdev);
4172 pci_disable_device(pdev);
4173 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4174
4175 dprintk(KERN_INFO PFX "Device suspended.\n");
4176
4177 return 0;
4178 }
4179
4180 static int bcm43xx_resume(struct pci_dev *pdev)
4181 {
4182 struct net_device *net_dev = pci_get_drvdata(pdev);
4183 struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4184 int err = 0;
4185
4186 dprintk(KERN_INFO PFX "Resuming...\n");
4187
4188 pci_set_power_state(pdev, 0);
4189 pci_enable_device(pdev);
4190 pci_restore_state(pdev);
4191
4192 bcm43xx_chipset_attach(bcm);
4193 if (bcm->was_initialized)
4194 err = bcm43xx_init_board(bcm);
4195 if (err) {
4196 printk(KERN_ERR PFX "Resume failed!\n");
4197 return err;
4198 }
4199 netif_device_attach(net_dev);
4200
4201 dprintk(KERN_INFO PFX "Device resumed.\n");
4202
4203 return 0;
4204 }
4205
4206 #endif /* CONFIG_PM */
4207
4208 static struct pci_driver bcm43xx_pci_driver = {
4209 .name = KBUILD_MODNAME,
4210 .id_table = bcm43xx_pci_tbl,
4211 .probe = bcm43xx_init_one,
4212 .remove = __devexit_p(bcm43xx_remove_one),
4213 #ifdef CONFIG_PM
4214 .suspend = bcm43xx_suspend,
4215 .resume = bcm43xx_resume,
4216 #endif /* CONFIG_PM */
4217 };
4218
4219 static int __init bcm43xx_init(void)
4220 {
4221 printk(KERN_INFO KBUILD_MODNAME " driver\n");
4222 bcm43xx_debugfs_init();
4223 return pci_register_driver(&bcm43xx_pci_driver);
4224 }
4225
4226 static void __exit bcm43xx_exit(void)
4227 {
4228 pci_unregister_driver(&bcm43xx_pci_driver);
4229 bcm43xx_debugfs_exit();
4230 }
4231
4232 module_init(bcm43xx_init)
4233 module_exit(bcm43xx_exit)
Linux kernel - Deliverables
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