3 * Broadcom B43legacy wireless driver
5 * Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
6 * Copyright (c) 2005 Stefano Brivio <st3@riseup.net>
7 * Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de>
8 * Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
9 * Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
10 * Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
12 * Some parts of the code in this file are derived from the ipw2200
13 * driver Copyright(c) 2003 - 2004 Intel Corporation.
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; see the file COPYING. If not, write to
27 * the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
28 * Boston, MA 02110-1301, USA.
32 #include <linux/delay.h>
33 #include <linux/init.h>
34 #include <linux/moduleparam.h>
35 #include <linux/if_arp.h>
36 #include <linux/etherdevice.h>
37 #include <linux/version.h>
38 #include <linux/firmware.h>
39 #include <linux/wireless.h>
40 #include <linux/workqueue.h>
41 #include <linux/skbuff.h>
42 #include <linux/dma-mapping.h>
44 #include <asm/unaligned.h>
46 #include "b43legacy.h"
57 MODULE_DESCRIPTION("Broadcom B43legacy wireless driver");
58 MODULE_AUTHOR("Martin Langer");
59 MODULE_AUTHOR("Stefano Brivio");
60 MODULE_AUTHOR("Michael Buesch");
61 MODULE_LICENSE("GPL");
63 #if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
64 static int modparam_pio
;
65 module_param_named(pio
, modparam_pio
, int, 0444);
66 MODULE_PARM_DESC(pio
, "enable(1) / disable(0) PIO mode");
67 #elif defined(CONFIG_B43LEGACY_DMA)
68 # define modparam_pio 0
69 #elif defined(CONFIG_B43LEGACY_PIO)
70 # define modparam_pio 1
73 static int modparam_bad_frames_preempt
;
74 module_param_named(bad_frames_preempt
, modparam_bad_frames_preempt
, int, 0444);
75 MODULE_PARM_DESC(bad_frames_preempt
, "enable(1) / disable(0) Bad Frames"
78 static int modparam_short_retry
= B43legacy_DEFAULT_SHORT_RETRY_LIMIT
;
79 module_param_named(short_retry
, modparam_short_retry
, int, 0444);
80 MODULE_PARM_DESC(short_retry
, "Short-Retry-Limit (0 - 15)");
82 static int modparam_long_retry
= B43legacy_DEFAULT_LONG_RETRY_LIMIT
;
83 module_param_named(long_retry
, modparam_long_retry
, int, 0444);
84 MODULE_PARM_DESC(long_retry
, "Long-Retry-Limit (0 - 15)");
86 static char modparam_fwpostfix
[16];
87 module_param_string(fwpostfix
, modparam_fwpostfix
, 16, 0444);
88 MODULE_PARM_DESC(fwpostfix
, "Postfix for the firmware files to load.");
90 /* The following table supports BCM4301, BCM4303 and BCM4306/2 devices. */
91 static const struct ssb_device_id b43legacy_ssb_tbl
[] = {
92 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 2),
93 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 4),
96 MODULE_DEVICE_TABLE(ssb
, b43legacy_ssb_tbl
);
99 /* Channel and ratetables are shared for all devices.
100 * They can't be const, because ieee80211 puts some precalculated
101 * data in there. This data is the same for all devices, so we don't
102 * get concurrency issues */
103 #define RATETAB_ENT(_rateid, _flags) \
105 .rate = B43legacy_RATE_TO_100KBPS(_rateid), \
110 static struct ieee80211_rate __b43legacy_ratetable
[] = {
111 RATETAB_ENT(B43legacy_CCK_RATE_1MB
, IEEE80211_RATE_CCK
),
112 RATETAB_ENT(B43legacy_CCK_RATE_2MB
, IEEE80211_RATE_CCK_2
),
113 RATETAB_ENT(B43legacy_CCK_RATE_5MB
, IEEE80211_RATE_CCK_2
),
114 RATETAB_ENT(B43legacy_CCK_RATE_11MB
, IEEE80211_RATE_CCK_2
),
115 RATETAB_ENT(B43legacy_OFDM_RATE_6MB
, IEEE80211_RATE_OFDM
),
116 RATETAB_ENT(B43legacy_OFDM_RATE_9MB
, IEEE80211_RATE_OFDM
),
117 RATETAB_ENT(B43legacy_OFDM_RATE_12MB
, IEEE80211_RATE_OFDM
),
118 RATETAB_ENT(B43legacy_OFDM_RATE_18MB
, IEEE80211_RATE_OFDM
),
119 RATETAB_ENT(B43legacy_OFDM_RATE_24MB
, IEEE80211_RATE_OFDM
),
120 RATETAB_ENT(B43legacy_OFDM_RATE_36MB
, IEEE80211_RATE_OFDM
),
121 RATETAB_ENT(B43legacy_OFDM_RATE_48MB
, IEEE80211_RATE_OFDM
),
122 RATETAB_ENT(B43legacy_OFDM_RATE_54MB
, IEEE80211_RATE_OFDM
),
124 #define b43legacy_a_ratetable (__b43legacy_ratetable + 4)
125 #define b43legacy_a_ratetable_size 8
126 #define b43legacy_b_ratetable (__b43legacy_ratetable + 0)
127 #define b43legacy_b_ratetable_size 4
128 #define b43legacy_g_ratetable (__b43legacy_ratetable + 0)
129 #define b43legacy_g_ratetable_size 12
131 #define CHANTAB_ENT(_chanid, _freq) \
136 .flag = IEEE80211_CHAN_W_SCAN | \
137 IEEE80211_CHAN_W_ACTIVE_SCAN | \
138 IEEE80211_CHAN_W_IBSS, \
139 .power_level = 0x0A, \
140 .antenna_max = 0xFF, \
142 static struct ieee80211_channel b43legacy_bg_chantable
[] = {
143 CHANTAB_ENT(1, 2412),
144 CHANTAB_ENT(2, 2417),
145 CHANTAB_ENT(3, 2422),
146 CHANTAB_ENT(4, 2427),
147 CHANTAB_ENT(5, 2432),
148 CHANTAB_ENT(6, 2437),
149 CHANTAB_ENT(7, 2442),
150 CHANTAB_ENT(8, 2447),
151 CHANTAB_ENT(9, 2452),
152 CHANTAB_ENT(10, 2457),
153 CHANTAB_ENT(11, 2462),
154 CHANTAB_ENT(12, 2467),
155 CHANTAB_ENT(13, 2472),
156 CHANTAB_ENT(14, 2484),
158 #define b43legacy_bg_chantable_size ARRAY_SIZE(b43legacy_bg_chantable)
160 static void b43legacy_wireless_core_exit(struct b43legacy_wldev
*dev
);
161 static int b43legacy_wireless_core_init(struct b43legacy_wldev
*dev
);
162 static void b43legacy_wireless_core_stop(struct b43legacy_wldev
*dev
);
163 static int b43legacy_wireless_core_start(struct b43legacy_wldev
*dev
);
166 static int b43legacy_ratelimit(struct b43legacy_wl
*wl
)
168 if (!wl
|| !wl
->current_dev
)
170 if (b43legacy_status(wl
->current_dev
) < B43legacy_STAT_STARTED
)
172 /* We are up and running.
173 * Ratelimit the messages to avoid DoS over the net. */
174 return net_ratelimit();
177 void b43legacyinfo(struct b43legacy_wl
*wl
, const char *fmt
, ...)
181 if (!b43legacy_ratelimit(wl
))
184 printk(KERN_INFO
"b43legacy-%s: ",
185 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan");
190 void b43legacyerr(struct b43legacy_wl
*wl
, const char *fmt
, ...)
194 if (!b43legacy_ratelimit(wl
))
197 printk(KERN_ERR
"b43legacy-%s ERROR: ",
198 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan");
203 void b43legacywarn(struct b43legacy_wl
*wl
, const char *fmt
, ...)
207 if (!b43legacy_ratelimit(wl
))
210 printk(KERN_WARNING
"b43legacy-%s warning: ",
211 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan");
217 void b43legacydbg(struct b43legacy_wl
*wl
, const char *fmt
, ...)
222 printk(KERN_DEBUG
"b43legacy-%s debug: ",
223 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan");
229 static void b43legacy_ram_write(struct b43legacy_wldev
*dev
, u16 offset
,
234 B43legacy_WARN_ON(offset
% 4 != 0);
236 status
= b43legacy_read32(dev
, B43legacy_MMIO_STATUS_BITFIELD
);
237 if (status
& B43legacy_SBF_XFER_REG_BYTESWAP
)
240 b43legacy_write32(dev
, B43legacy_MMIO_RAM_CONTROL
, offset
);
242 b43legacy_write32(dev
, B43legacy_MMIO_RAM_DATA
, val
);
246 void b43legacy_shm_control_word(struct b43legacy_wldev
*dev
,
247 u16 routing
, u16 offset
)
251 /* "offset" is the WORD offset. */
256 b43legacy_write32(dev
, B43legacy_MMIO_SHM_CONTROL
, control
);
259 u32
b43legacy_shm_read32(struct b43legacy_wldev
*dev
,
260 u16 routing
, u16 offset
)
264 if (routing
== B43legacy_SHM_SHARED
) {
265 B43legacy_WARN_ON((offset
& 0x0001) != 0);
266 if (offset
& 0x0003) {
267 /* Unaligned access */
268 b43legacy_shm_control_word(dev
, routing
, offset
>> 2);
269 ret
= b43legacy_read16(dev
,
270 B43legacy_MMIO_SHM_DATA_UNALIGNED
);
272 b43legacy_shm_control_word(dev
, routing
,
274 ret
|= b43legacy_read16(dev
, B43legacy_MMIO_SHM_DATA
);
280 b43legacy_shm_control_word(dev
, routing
, offset
);
281 ret
= b43legacy_read32(dev
, B43legacy_MMIO_SHM_DATA
);
286 u16
b43legacy_shm_read16(struct b43legacy_wldev
*dev
,
287 u16 routing
, u16 offset
)
291 if (routing
== B43legacy_SHM_SHARED
) {
292 B43legacy_WARN_ON((offset
& 0x0001) != 0);
293 if (offset
& 0x0003) {
294 /* Unaligned access */
295 b43legacy_shm_control_word(dev
, routing
, offset
>> 2);
296 ret
= b43legacy_read16(dev
,
297 B43legacy_MMIO_SHM_DATA_UNALIGNED
);
303 b43legacy_shm_control_word(dev
, routing
, offset
);
304 ret
= b43legacy_read16(dev
, B43legacy_MMIO_SHM_DATA
);
309 void b43legacy_shm_write32(struct b43legacy_wldev
*dev
,
310 u16 routing
, u16 offset
,
313 if (routing
== B43legacy_SHM_SHARED
) {
314 B43legacy_WARN_ON((offset
& 0x0001) != 0);
315 if (offset
& 0x0003) {
316 /* Unaligned access */
317 b43legacy_shm_control_word(dev
, routing
, offset
>> 2);
319 b43legacy_write16(dev
,
320 B43legacy_MMIO_SHM_DATA_UNALIGNED
,
321 (value
>> 16) & 0xffff);
323 b43legacy_shm_control_word(dev
, routing
,
326 b43legacy_write16(dev
, B43legacy_MMIO_SHM_DATA
,
332 b43legacy_shm_control_word(dev
, routing
, offset
);
334 b43legacy_write32(dev
, B43legacy_MMIO_SHM_DATA
, value
);
337 void b43legacy_shm_write16(struct b43legacy_wldev
*dev
, u16 routing
, u16 offset
,
340 if (routing
== B43legacy_SHM_SHARED
) {
341 B43legacy_WARN_ON((offset
& 0x0001) != 0);
342 if (offset
& 0x0003) {
343 /* Unaligned access */
344 b43legacy_shm_control_word(dev
, routing
, offset
>> 2);
346 b43legacy_write16(dev
,
347 B43legacy_MMIO_SHM_DATA_UNALIGNED
,
353 b43legacy_shm_control_word(dev
, routing
, offset
);
355 b43legacy_write16(dev
, B43legacy_MMIO_SHM_DATA
, value
);
359 u32
b43legacy_hf_read(struct b43legacy_wldev
*dev
)
363 ret
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
364 B43legacy_SHM_SH_HOSTFHI
);
366 ret
|= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
367 B43legacy_SHM_SH_HOSTFLO
);
372 /* Write HostFlags */
373 void b43legacy_hf_write(struct b43legacy_wldev
*dev
, u32 value
)
375 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
376 B43legacy_SHM_SH_HOSTFLO
,
377 (value
& 0x0000FFFF));
378 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
379 B43legacy_SHM_SH_HOSTFHI
,
380 ((value
& 0xFFFF0000) >> 16));
383 void b43legacy_tsf_read(struct b43legacy_wldev
*dev
, u64
*tsf
)
385 /* We need to be careful. As we read the TSF from multiple
386 * registers, we should take care of register overflows.
387 * In theory, the whole tsf read process should be atomic.
388 * We try to be atomic here, by restaring the read process,
389 * if any of the high registers changed (overflew).
391 if (dev
->dev
->id
.revision
>= 3) {
397 high
= b43legacy_read32(dev
,
398 B43legacy_MMIO_REV3PLUS_TSF_HIGH
);
399 low
= b43legacy_read32(dev
,
400 B43legacy_MMIO_REV3PLUS_TSF_LOW
);
401 high2
= b43legacy_read32(dev
,
402 B43legacy_MMIO_REV3PLUS_TSF_HIGH
);
403 } while (unlikely(high
!= high2
));
419 v3
= b43legacy_read16(dev
, B43legacy_MMIO_TSF_3
);
420 v2
= b43legacy_read16(dev
, B43legacy_MMIO_TSF_2
);
421 v1
= b43legacy_read16(dev
, B43legacy_MMIO_TSF_1
);
422 v0
= b43legacy_read16(dev
, B43legacy_MMIO_TSF_0
);
424 test3
= b43legacy_read16(dev
, B43legacy_MMIO_TSF_3
);
425 test2
= b43legacy_read16(dev
, B43legacy_MMIO_TSF_2
);
426 test1
= b43legacy_read16(dev
, B43legacy_MMIO_TSF_1
);
427 } while (v3
!= test3
|| v2
!= test2
|| v1
!= test1
);
441 static void b43legacy_time_lock(struct b43legacy_wldev
*dev
)
445 status
= b43legacy_read32(dev
, B43legacy_MMIO_STATUS_BITFIELD
);
446 status
|= B43legacy_SBF_TIME_UPDATE
;
447 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
, status
);
451 static void b43legacy_time_unlock(struct b43legacy_wldev
*dev
)
455 status
= b43legacy_read32(dev
, B43legacy_MMIO_STATUS_BITFIELD
);
456 status
&= ~B43legacy_SBF_TIME_UPDATE
;
457 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
, status
);
460 static void b43legacy_tsf_write_locked(struct b43legacy_wldev
*dev
, u64 tsf
)
462 /* Be careful with the in-progress timer.
463 * First zero out the low register, so we have a full
464 * register-overflow duration to complete the operation.
466 if (dev
->dev
->id
.revision
>= 3) {
467 u32 lo
= (tsf
& 0x00000000FFFFFFFFULL
);
468 u32 hi
= (tsf
& 0xFFFFFFFF00000000ULL
) >> 32;
470 b43legacy_write32(dev
, B43legacy_MMIO_REV3PLUS_TSF_LOW
, 0);
472 b43legacy_write32(dev
, B43legacy_MMIO_REV3PLUS_TSF_HIGH
,
475 b43legacy_write32(dev
, B43legacy_MMIO_REV3PLUS_TSF_LOW
,
478 u16 v0
= (tsf
& 0x000000000000FFFFULL
);
479 u16 v1
= (tsf
& 0x00000000FFFF0000ULL
) >> 16;
480 u16 v2
= (tsf
& 0x0000FFFF00000000ULL
) >> 32;
481 u16 v3
= (tsf
& 0xFFFF000000000000ULL
) >> 48;
483 b43legacy_write16(dev
, B43legacy_MMIO_TSF_0
, 0);
485 b43legacy_write16(dev
, B43legacy_MMIO_TSF_3
, v3
);
487 b43legacy_write16(dev
, B43legacy_MMIO_TSF_2
, v2
);
489 b43legacy_write16(dev
, B43legacy_MMIO_TSF_1
, v1
);
491 b43legacy_write16(dev
, B43legacy_MMIO_TSF_0
, v0
);
495 void b43legacy_tsf_write(struct b43legacy_wldev
*dev
, u64 tsf
)
497 b43legacy_time_lock(dev
);
498 b43legacy_tsf_write_locked(dev
, tsf
);
499 b43legacy_time_unlock(dev
);
503 void b43legacy_macfilter_set(struct b43legacy_wldev
*dev
,
504 u16 offset
, const u8
*mac
)
506 static const u8 zero_addr
[ETH_ALEN
] = { 0 };
513 b43legacy_write16(dev
, B43legacy_MMIO_MACFILTER_CONTROL
, offset
);
517 b43legacy_write16(dev
, B43legacy_MMIO_MACFILTER_DATA
, data
);
520 b43legacy_write16(dev
, B43legacy_MMIO_MACFILTER_DATA
, data
);
523 b43legacy_write16(dev
, B43legacy_MMIO_MACFILTER_DATA
, data
);
526 static void b43legacy_write_mac_bssid_templates(struct b43legacy_wldev
*dev
)
528 static const u8 zero_addr
[ETH_ALEN
] = { 0 };
529 const u8
*mac
= dev
->wl
->mac_addr
;
530 const u8
*bssid
= dev
->wl
->bssid
;
531 u8 mac_bssid
[ETH_ALEN
* 2];
540 b43legacy_macfilter_set(dev
, B43legacy_MACFILTER_BSSID
, bssid
);
542 memcpy(mac_bssid
, mac
, ETH_ALEN
);
543 memcpy(mac_bssid
+ ETH_ALEN
, bssid
, ETH_ALEN
);
545 /* Write our MAC address and BSSID to template ram */
546 for (i
= 0; i
< ARRAY_SIZE(mac_bssid
); i
+= sizeof(u32
)) {
547 tmp
= (u32
)(mac_bssid
[i
+ 0]);
548 tmp
|= (u32
)(mac_bssid
[i
+ 1]) << 8;
549 tmp
|= (u32
)(mac_bssid
[i
+ 2]) << 16;
550 tmp
|= (u32
)(mac_bssid
[i
+ 3]) << 24;
551 b43legacy_ram_write(dev
, 0x20 + i
, tmp
);
552 b43legacy_ram_write(dev
, 0x78 + i
, tmp
);
553 b43legacy_ram_write(dev
, 0x478 + i
, tmp
);
557 static void b43legacy_upload_card_macaddress(struct b43legacy_wldev
*dev
)
559 b43legacy_write_mac_bssid_templates(dev
);
560 b43legacy_macfilter_set(dev
, B43legacy_MACFILTER_SELF
,
564 static void b43legacy_set_slot_time(struct b43legacy_wldev
*dev
,
567 /* slot_time is in usec. */
568 if (dev
->phy
.type
!= B43legacy_PHYTYPE_G
)
570 b43legacy_write16(dev
, 0x684, 510 + slot_time
);
571 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, 0x0010,
575 static void b43legacy_short_slot_timing_enable(struct b43legacy_wldev
*dev
)
577 b43legacy_set_slot_time(dev
, 9);
581 static void b43legacy_short_slot_timing_disable(struct b43legacy_wldev
*dev
)
583 b43legacy_set_slot_time(dev
, 20);
587 /* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable.
588 * Returns the _previously_ enabled IRQ mask.
590 static inline u32
b43legacy_interrupt_enable(struct b43legacy_wldev
*dev
,
595 old_mask
= b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_MASK
);
596 b43legacy_write32(dev
, B43legacy_MMIO_GEN_IRQ_MASK
, old_mask
|
602 /* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable.
603 * Returns the _previously_ enabled IRQ mask.
605 static inline u32
b43legacy_interrupt_disable(struct b43legacy_wldev
*dev
,
610 old_mask
= b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_MASK
);
611 b43legacy_write32(dev
, B43legacy_MMIO_GEN_IRQ_MASK
, old_mask
& ~mask
);
616 /* Synchronize IRQ top- and bottom-half.
617 * IRQs must be masked before calling this.
618 * This must not be called with the irq_lock held.
620 static void b43legacy_synchronize_irq(struct b43legacy_wldev
*dev
)
622 synchronize_irq(dev
->dev
->irq
);
623 tasklet_kill(&dev
->isr_tasklet
);
626 /* DummyTransmission function, as documented on
627 * http://bcm-specs.sipsolutions.net/DummyTransmission
629 void b43legacy_dummy_transmission(struct b43legacy_wldev
*dev
)
631 struct b43legacy_phy
*phy
= &dev
->phy
;
633 unsigned int max_loop
;
644 case B43legacy_PHYTYPE_B
:
645 case B43legacy_PHYTYPE_G
:
647 buffer
[0] = 0x000B846E;
654 for (i
= 0; i
< 5; i
++)
655 b43legacy_ram_write(dev
, i
* 4, buffer
[i
]);
657 /* dummy read follows */
658 b43legacy_read32(dev
, B43legacy_MMIO_STATUS_BITFIELD
);
660 b43legacy_write16(dev
, 0x0568, 0x0000);
661 b43legacy_write16(dev
, 0x07C0, 0x0000);
662 b43legacy_write16(dev
, 0x050C, 0x0000);
663 b43legacy_write16(dev
, 0x0508, 0x0000);
664 b43legacy_write16(dev
, 0x050A, 0x0000);
665 b43legacy_write16(dev
, 0x054C, 0x0000);
666 b43legacy_write16(dev
, 0x056A, 0x0014);
667 b43legacy_write16(dev
, 0x0568, 0x0826);
668 b43legacy_write16(dev
, 0x0500, 0x0000);
669 b43legacy_write16(dev
, 0x0502, 0x0030);
671 if (phy
->radio_ver
== 0x2050 && phy
->radio_rev
<= 0x5)
672 b43legacy_radio_write16(dev
, 0x0051, 0x0017);
673 for (i
= 0x00; i
< max_loop
; i
++) {
674 value
= b43legacy_read16(dev
, 0x050E);
679 for (i
= 0x00; i
< 0x0A; i
++) {
680 value
= b43legacy_read16(dev
, 0x050E);
685 for (i
= 0x00; i
< 0x0A; i
++) {
686 value
= b43legacy_read16(dev
, 0x0690);
687 if (!(value
& 0x0100))
691 if (phy
->radio_ver
== 0x2050 && phy
->radio_rev
<= 0x5)
692 b43legacy_radio_write16(dev
, 0x0051, 0x0037);
695 /* Turn the Analog ON/OFF */
696 static void b43legacy_switch_analog(struct b43legacy_wldev
*dev
, int on
)
698 b43legacy_write16(dev
, B43legacy_MMIO_PHY0
, on
? 0 : 0xF4);
701 void b43legacy_wireless_core_reset(struct b43legacy_wldev
*dev
, u32 flags
)
706 flags
|= B43legacy_TMSLOW_PHYCLKEN
;
707 flags
|= B43legacy_TMSLOW_PHYRESET
;
708 ssb_device_enable(dev
->dev
, flags
);
709 msleep(2); /* Wait for the PLL to turn on. */
711 /* Now take the PHY out of Reset again */
712 tmslow
= ssb_read32(dev
->dev
, SSB_TMSLOW
);
713 tmslow
|= SSB_TMSLOW_FGC
;
714 tmslow
&= ~B43legacy_TMSLOW_PHYRESET
;
715 ssb_write32(dev
->dev
, SSB_TMSLOW
, tmslow
);
716 ssb_read32(dev
->dev
, SSB_TMSLOW
); /* flush */
718 tmslow
&= ~SSB_TMSLOW_FGC
;
719 ssb_write32(dev
->dev
, SSB_TMSLOW
, tmslow
);
720 ssb_read32(dev
->dev
, SSB_TMSLOW
); /* flush */
724 b43legacy_switch_analog(dev
, 1);
726 macctl
= b43legacy_read32(dev
, B43legacy_MMIO_MACCTL
);
727 macctl
&= ~B43legacy_MACCTL_GMODE
;
728 if (flags
& B43legacy_TMSLOW_GMODE
) {
729 macctl
|= B43legacy_MACCTL_GMODE
;
733 macctl
|= B43legacy_MACCTL_IHR_ENABLED
;
734 b43legacy_write32(dev
, B43legacy_MMIO_MACCTL
, macctl
);
737 static void handle_irq_transmit_status(struct b43legacy_wldev
*dev
)
742 struct b43legacy_txstatus stat
;
745 v0
= b43legacy_read32(dev
, B43legacy_MMIO_XMITSTAT_0
);
746 if (!(v0
& 0x00000001))
748 v1
= b43legacy_read32(dev
, B43legacy_MMIO_XMITSTAT_1
);
750 stat
.cookie
= (v0
>> 16);
751 stat
.seq
= (v1
& 0x0000FFFF);
752 stat
.phy_stat
= ((v1
& 0x00FF0000) >> 16);
753 tmp
= (v0
& 0x0000FFFF);
754 stat
.frame_count
= ((tmp
& 0xF000) >> 12);
755 stat
.rts_count
= ((tmp
& 0x0F00) >> 8);
756 stat
.supp_reason
= ((tmp
& 0x001C) >> 2);
757 stat
.pm_indicated
= !!(tmp
& 0x0080);
758 stat
.intermediate
= !!(tmp
& 0x0040);
759 stat
.for_ampdu
= !!(tmp
& 0x0020);
760 stat
.acked
= !!(tmp
& 0x0002);
762 b43legacy_handle_txstatus(dev
, &stat
);
766 static void drain_txstatus_queue(struct b43legacy_wldev
*dev
)
770 if (dev
->dev
->id
.revision
< 5)
772 /* Read all entries from the microcode TXstatus FIFO
773 * and throw them away.
776 dummy
= b43legacy_read32(dev
, B43legacy_MMIO_XMITSTAT_0
);
777 if (!(dummy
& 0x00000001))
779 dummy
= b43legacy_read32(dev
, B43legacy_MMIO_XMITSTAT_1
);
783 static u32
b43legacy_jssi_read(struct b43legacy_wldev
*dev
)
787 val
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
, 0x40A);
789 val
|= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
, 0x408);
794 static void b43legacy_jssi_write(struct b43legacy_wldev
*dev
, u32 jssi
)
796 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, 0x408,
797 (jssi
& 0x0000FFFF));
798 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, 0x40A,
799 (jssi
& 0xFFFF0000) >> 16);
802 static void b43legacy_generate_noise_sample(struct b43legacy_wldev
*dev
)
804 b43legacy_jssi_write(dev
, 0x7F7F7F7F);
805 b43legacy_write32(dev
, B43legacy_MMIO_STATUS2_BITFIELD
,
806 b43legacy_read32(dev
,
807 B43legacy_MMIO_STATUS2_BITFIELD
)
809 B43legacy_WARN_ON(dev
->noisecalc
.channel_at_start
!=
813 static void b43legacy_calculate_link_quality(struct b43legacy_wldev
*dev
)
815 /* Top half of Link Quality calculation. */
817 if (dev
->noisecalc
.calculation_running
)
819 dev
->noisecalc
.channel_at_start
= dev
->phy
.channel
;
820 dev
->noisecalc
.calculation_running
= 1;
821 dev
->noisecalc
.nr_samples
= 0;
823 b43legacy_generate_noise_sample(dev
);
826 static void handle_irq_noise(struct b43legacy_wldev
*dev
)
828 struct b43legacy_phy
*phy
= &dev
->phy
;
835 /* Bottom half of Link Quality calculation. */
837 B43legacy_WARN_ON(!dev
->noisecalc
.calculation_running
);
838 if (dev
->noisecalc
.channel_at_start
!= phy
->channel
)
839 goto drop_calculation
;
840 *((__le32
*)noise
) = cpu_to_le32(b43legacy_jssi_read(dev
));
841 if (noise
[0] == 0x7F || noise
[1] == 0x7F ||
842 noise
[2] == 0x7F || noise
[3] == 0x7F)
845 /* Get the noise samples. */
846 B43legacy_WARN_ON(dev
->noisecalc
.nr_samples
>= 8);
847 i
= dev
->noisecalc
.nr_samples
;
848 noise
[0] = limit_value(noise
[0], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
849 noise
[1] = limit_value(noise
[1], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
850 noise
[2] = limit_value(noise
[2], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
851 noise
[3] = limit_value(noise
[3], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
852 dev
->noisecalc
.samples
[i
][0] = phy
->nrssi_lt
[noise
[0]];
853 dev
->noisecalc
.samples
[i
][1] = phy
->nrssi_lt
[noise
[1]];
854 dev
->noisecalc
.samples
[i
][2] = phy
->nrssi_lt
[noise
[2]];
855 dev
->noisecalc
.samples
[i
][3] = phy
->nrssi_lt
[noise
[3]];
856 dev
->noisecalc
.nr_samples
++;
857 if (dev
->noisecalc
.nr_samples
== 8) {
858 /* Calculate the Link Quality by the noise samples. */
860 for (i
= 0; i
< 8; i
++) {
861 for (j
= 0; j
< 4; j
++)
862 average
+= dev
->noisecalc
.samples
[i
][j
];
868 tmp
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
870 tmp
= (tmp
/ 128) & 0x1F;
880 dev
->stats
.link_noise
= average
;
882 dev
->noisecalc
.calculation_running
= 0;
886 b43legacy_generate_noise_sample(dev
);
889 static void handle_irq_tbtt_indication(struct b43legacy_wldev
*dev
)
891 if (b43legacy_is_mode(dev
->wl
, IEEE80211_IF_TYPE_AP
)) {
894 if (1/*FIXME: the last PSpoll frame was sent successfully */)
895 b43legacy_power_saving_ctl_bits(dev
, -1, -1);
897 dev
->reg124_set_0x4
= 0;
898 if (b43legacy_is_mode(dev
->wl
, IEEE80211_IF_TYPE_IBSS
))
899 dev
->reg124_set_0x4
= 1;
902 static void handle_irq_atim_end(struct b43legacy_wldev
*dev
)
904 if (!dev
->reg124_set_0x4
) /*FIXME rename this variable*/
906 b43legacy_write32(dev
, B43legacy_MMIO_STATUS2_BITFIELD
,
907 b43legacy_read32(dev
, B43legacy_MMIO_STATUS2_BITFIELD
)
911 static void handle_irq_pmq(struct b43legacy_wldev
*dev
)
918 tmp
= b43legacy_read32(dev
, B43legacy_MMIO_PS_STATUS
);
919 if (!(tmp
& 0x00000008))
922 /* 16bit write is odd, but correct. */
923 b43legacy_write16(dev
, B43legacy_MMIO_PS_STATUS
, 0x0002);
926 static void b43legacy_write_template_common(struct b43legacy_wldev
*dev
,
927 const u8
*data
, u16 size
,
929 u16 shm_size_offset
, u8 rate
)
933 struct b43legacy_plcp_hdr4 plcp
;
936 b43legacy_generate_plcp_hdr(&plcp
, size
+ FCS_LEN
, rate
);
937 b43legacy_ram_write(dev
, ram_offset
, le32_to_cpu(plcp
.data
));
938 ram_offset
+= sizeof(u32
);
939 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
940 * So leave the first two bytes of the next write blank.
942 tmp
= (u32
)(data
[0]) << 16;
943 tmp
|= (u32
)(data
[1]) << 24;
944 b43legacy_ram_write(dev
, ram_offset
, tmp
);
945 ram_offset
+= sizeof(u32
);
946 for (i
= 2; i
< size
; i
+= sizeof(u32
)) {
947 tmp
= (u32
)(data
[i
+ 0]);
949 tmp
|= (u32
)(data
[i
+ 1]) << 8;
951 tmp
|= (u32
)(data
[i
+ 2]) << 16;
953 tmp
|= (u32
)(data
[i
+ 3]) << 24;
954 b43legacy_ram_write(dev
, ram_offset
+ i
- 2, tmp
);
956 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, shm_size_offset
,
957 size
+ sizeof(struct b43legacy_plcp_hdr6
));
960 static void b43legacy_write_beacon_template(struct b43legacy_wldev
*dev
,
962 u16 shm_size_offset
, u8 rate
)
967 B43legacy_WARN_ON(!dev
->cached_beacon
);
968 len
= min((size_t)dev
->cached_beacon
->len
,
969 0x200 - sizeof(struct b43legacy_plcp_hdr6
));
970 data
= (const u8
*)(dev
->cached_beacon
->data
);
971 b43legacy_write_template_common(dev
, data
,
973 shm_size_offset
, rate
);
976 static void b43legacy_write_probe_resp_plcp(struct b43legacy_wldev
*dev
,
977 u16 shm_offset
, u16 size
,
980 struct b43legacy_plcp_hdr4 plcp
;
985 b43legacy_generate_plcp_hdr(&plcp
, size
+ FCS_LEN
, rate
);
986 dur
= ieee80211_generic_frame_duration(dev
->wl
->hw
,
989 B43legacy_RATE_TO_100KBPS(rate
));
990 /* Write PLCP in two parts and timing for packet transfer */
991 tmp
= le32_to_cpu(plcp
.data
);
992 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, shm_offset
,
994 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, shm_offset
+ 2,
996 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, shm_offset
+ 6,
1000 /* Instead of using custom probe response template, this function
1001 * just patches custom beacon template by:
1002 * 1) Changing packet type
1003 * 2) Patching duration field
1006 static u8
*b43legacy_generate_probe_resp(struct b43legacy_wldev
*dev
,
1007 u16
*dest_size
, u8 rate
)
1016 struct ieee80211_hdr
*hdr
;
1018 B43legacy_WARN_ON(!dev
->cached_beacon
);
1019 src_size
= dev
->cached_beacon
->len
;
1020 src_data
= (const u8
*)dev
->cached_beacon
->data
;
1022 if (unlikely(src_size
< 0x24)) {
1023 b43legacydbg(dev
->wl
, "b43legacy_generate_probe_resp: "
1024 "invalid beacon\n");
1028 dest_data
= kmalloc(src_size
, GFP_ATOMIC
);
1029 if (unlikely(!dest_data
))
1032 /* 0x24 is offset of first variable-len Information-Element
1035 memcpy(dest_data
, src_data
, 0x24);
1038 for (; src_pos
< src_size
- 2; src_pos
+= elem_size
) {
1039 elem_size
= src_data
[src_pos
+ 1] + 2;
1040 if (src_data
[src_pos
] != 0x05) { /* TIM */
1041 memcpy(dest_data
+ dest_pos
, src_data
+ src_pos
,
1043 dest_pos
+= elem_size
;
1046 *dest_size
= dest_pos
;
1047 hdr
= (struct ieee80211_hdr
*)dest_data
;
1049 /* Set the frame control. */
1050 hdr
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_MGMT
|
1051 IEEE80211_STYPE_PROBE_RESP
);
1052 dur
= ieee80211_generic_frame_duration(dev
->wl
->hw
,
1055 B43legacy_RATE_TO_100KBPS(rate
));
1056 hdr
->duration_id
= dur
;
1061 static void b43legacy_write_probe_resp_template(struct b43legacy_wldev
*dev
,
1063 u16 shm_size_offset
, u8 rate
)
1065 u8
*probe_resp_data
;
1068 B43legacy_WARN_ON(!dev
->cached_beacon
);
1069 size
= dev
->cached_beacon
->len
;
1070 probe_resp_data
= b43legacy_generate_probe_resp(dev
, &size
, rate
);
1071 if (unlikely(!probe_resp_data
))
1074 /* Looks like PLCP headers plus packet timings are stored for
1075 * all possible basic rates
1077 b43legacy_write_probe_resp_plcp(dev
, 0x31A, size
,
1078 B43legacy_CCK_RATE_1MB
);
1079 b43legacy_write_probe_resp_plcp(dev
, 0x32C, size
,
1080 B43legacy_CCK_RATE_2MB
);
1081 b43legacy_write_probe_resp_plcp(dev
, 0x33E, size
,
1082 B43legacy_CCK_RATE_5MB
);
1083 b43legacy_write_probe_resp_plcp(dev
, 0x350, size
,
1084 B43legacy_CCK_RATE_11MB
);
1086 size
= min((size_t)size
,
1087 0x200 - sizeof(struct b43legacy_plcp_hdr6
));
1088 b43legacy_write_template_common(dev
, probe_resp_data
,
1090 shm_size_offset
, rate
);
1091 kfree(probe_resp_data
);
1094 static int b43legacy_refresh_cached_beacon(struct b43legacy_wldev
*dev
,
1095 struct sk_buff
*beacon
)
1097 if (dev
->cached_beacon
)
1098 kfree_skb(dev
->cached_beacon
);
1099 dev
->cached_beacon
= beacon
;
1104 static void b43legacy_update_templates(struct b43legacy_wldev
*dev
)
1108 B43legacy_WARN_ON(!dev
->cached_beacon
);
1110 b43legacy_write_beacon_template(dev
, 0x68, 0x18,
1111 B43legacy_CCK_RATE_1MB
);
1112 b43legacy_write_beacon_template(dev
, 0x468, 0x1A,
1113 B43legacy_CCK_RATE_1MB
);
1114 b43legacy_write_probe_resp_template(dev
, 0x268, 0x4A,
1115 B43legacy_CCK_RATE_11MB
);
1117 status
= b43legacy_read32(dev
, B43legacy_MMIO_STATUS2_BITFIELD
);
1119 b43legacy_write32(dev
, B43legacy_MMIO_STATUS2_BITFIELD
, status
);
1122 static void b43legacy_refresh_templates(struct b43legacy_wldev
*dev
,
1123 struct sk_buff
*beacon
)
1127 err
= b43legacy_refresh_cached_beacon(dev
, beacon
);
1130 b43legacy_update_templates(dev
);
1133 static void b43legacy_set_ssid(struct b43legacy_wldev
*dev
,
1134 const u8
*ssid
, u8 ssid_len
)
1140 len
= min((u16
)ssid_len
, (u16
)0x100);
1141 for (i
= 0; i
< len
; i
+= sizeof(u32
)) {
1142 tmp
= (u32
)(ssid
[i
+ 0]);
1144 tmp
|= (u32
)(ssid
[i
+ 1]) << 8;
1146 tmp
|= (u32
)(ssid
[i
+ 2]) << 16;
1148 tmp
|= (u32
)(ssid
[i
+ 3]) << 24;
1149 b43legacy_shm_write32(dev
, B43legacy_SHM_SHARED
,
1152 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
1156 static void b43legacy_set_beacon_int(struct b43legacy_wldev
*dev
,
1159 b43legacy_time_lock(dev
);
1160 if (dev
->dev
->id
.revision
>= 3)
1161 b43legacy_write32(dev
, 0x188, (beacon_int
<< 16));
1163 b43legacy_write16(dev
, 0x606, (beacon_int
>> 6));
1164 b43legacy_write16(dev
, 0x610, beacon_int
);
1166 b43legacy_time_unlock(dev
);
1169 static void handle_irq_beacon(struct b43legacy_wldev
*dev
)
1173 if (!b43legacy_is_mode(dev
->wl
, IEEE80211_IF_TYPE_AP
))
1176 dev
->irq_savedstate
&= ~B43legacy_IRQ_BEACON
;
1177 status
= b43legacy_read32(dev
, B43legacy_MMIO_STATUS2_BITFIELD
);
1179 if (!dev
->cached_beacon
|| ((status
& 0x1) && (status
& 0x2))) {
1180 /* ACK beacon IRQ. */
1181 b43legacy_write32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
,
1182 B43legacy_IRQ_BEACON
);
1183 dev
->irq_savedstate
|= B43legacy_IRQ_BEACON
;
1184 if (dev
->cached_beacon
)
1185 kfree_skb(dev
->cached_beacon
);
1186 dev
->cached_beacon
= NULL
;
1189 if (!(status
& 0x1)) {
1190 b43legacy_write_beacon_template(dev
, 0x68, 0x18,
1191 B43legacy_CCK_RATE_1MB
);
1193 b43legacy_write32(dev
, B43legacy_MMIO_STATUS2_BITFIELD
,
1196 if (!(status
& 0x2)) {
1197 b43legacy_write_beacon_template(dev
, 0x468, 0x1A,
1198 B43legacy_CCK_RATE_1MB
);
1200 b43legacy_write32(dev
, B43legacy_MMIO_STATUS2_BITFIELD
,
1205 static void handle_irq_ucode_debug(struct b43legacy_wldev
*dev
)
1209 /* Interrupt handler bottom-half */
1210 static void b43legacy_interrupt_tasklet(struct b43legacy_wldev
*dev
)
1213 u32 dma_reason
[ARRAY_SIZE(dev
->dma_reason
)];
1214 u32 merged_dma_reason
= 0;
1216 unsigned long flags
;
1218 spin_lock_irqsave(&dev
->wl
->irq_lock
, flags
);
1220 B43legacy_WARN_ON(b43legacy_status(dev
) <
1221 B43legacy_STAT_INITIALIZED
);
1223 reason
= dev
->irq_reason
;
1224 for (i
= 0; i
< ARRAY_SIZE(dma_reason
); i
++) {
1225 dma_reason
[i
] = dev
->dma_reason
[i
];
1226 merged_dma_reason
|= dma_reason
[i
];
1229 if (unlikely(reason
& B43legacy_IRQ_MAC_TXERR
))
1230 b43legacyerr(dev
->wl
, "MAC transmission error\n");
1232 if (unlikely(reason
& B43legacy_IRQ_PHY_TXERR
))
1233 b43legacyerr(dev
->wl
, "PHY transmission error\n");
1235 if (unlikely(merged_dma_reason
& (B43legacy_DMAIRQ_FATALMASK
|
1236 B43legacy_DMAIRQ_NONFATALMASK
))) {
1237 if (merged_dma_reason
& B43legacy_DMAIRQ_FATALMASK
) {
1238 b43legacyerr(dev
->wl
, "Fatal DMA error: "
1239 "0x%08X, 0x%08X, 0x%08X, "
1240 "0x%08X, 0x%08X, 0x%08X\n",
1241 dma_reason
[0], dma_reason
[1],
1242 dma_reason
[2], dma_reason
[3],
1243 dma_reason
[4], dma_reason
[5]);
1244 b43legacy_controller_restart(dev
, "DMA error");
1246 spin_unlock_irqrestore(&dev
->wl
->irq_lock
, flags
);
1249 if (merged_dma_reason
& B43legacy_DMAIRQ_NONFATALMASK
)
1250 b43legacyerr(dev
->wl
, "DMA error: "
1251 "0x%08X, 0x%08X, 0x%08X, "
1252 "0x%08X, 0x%08X, 0x%08X\n",
1253 dma_reason
[0], dma_reason
[1],
1254 dma_reason
[2], dma_reason
[3],
1255 dma_reason
[4], dma_reason
[5]);
1258 if (unlikely(reason
& B43legacy_IRQ_UCODE_DEBUG
))
1259 handle_irq_ucode_debug(dev
);
1260 if (reason
& B43legacy_IRQ_TBTT_INDI
)
1261 handle_irq_tbtt_indication(dev
);
1262 if (reason
& B43legacy_IRQ_ATIM_END
)
1263 handle_irq_atim_end(dev
);
1264 if (reason
& B43legacy_IRQ_BEACON
)
1265 handle_irq_beacon(dev
);
1266 if (reason
& B43legacy_IRQ_PMQ
)
1267 handle_irq_pmq(dev
);
1268 if (reason
& B43legacy_IRQ_TXFIFO_FLUSH_OK
)
1270 if (reason
& B43legacy_IRQ_NOISESAMPLE_OK
)
1271 handle_irq_noise(dev
);
1273 /* Check the DMA reason registers for received data. */
1274 if (dma_reason
[0] & B43legacy_DMAIRQ_RX_DONE
) {
1275 if (b43legacy_using_pio(dev
))
1276 b43legacy_pio_rx(dev
->pio
.queue0
);
1278 b43legacy_dma_rx(dev
->dma
.rx_ring0
);
1280 B43legacy_WARN_ON(dma_reason
[1] & B43legacy_DMAIRQ_RX_DONE
);
1281 B43legacy_WARN_ON(dma_reason
[2] & B43legacy_DMAIRQ_RX_DONE
);
1282 if (dma_reason
[3] & B43legacy_DMAIRQ_RX_DONE
) {
1283 if (b43legacy_using_pio(dev
))
1284 b43legacy_pio_rx(dev
->pio
.queue3
);
1286 b43legacy_dma_rx(dev
->dma
.rx_ring3
);
1288 B43legacy_WARN_ON(dma_reason
[4] & B43legacy_DMAIRQ_RX_DONE
);
1289 B43legacy_WARN_ON(dma_reason
[5] & B43legacy_DMAIRQ_RX_DONE
);
1291 if (reason
& B43legacy_IRQ_TX_OK
)
1292 handle_irq_transmit_status(dev
);
1294 b43legacy_interrupt_enable(dev
, dev
->irq_savedstate
);
1296 spin_unlock_irqrestore(&dev
->wl
->irq_lock
, flags
);
1299 static void pio_irq_workaround(struct b43legacy_wldev
*dev
,
1300 u16 base
, int queueidx
)
1304 rxctl
= b43legacy_read16(dev
, base
+ B43legacy_PIO_RXCTL
);
1305 if (rxctl
& B43legacy_PIO_RXCTL_DATAAVAILABLE
)
1306 dev
->dma_reason
[queueidx
] |= B43legacy_DMAIRQ_RX_DONE
;
1308 dev
->dma_reason
[queueidx
] &= ~B43legacy_DMAIRQ_RX_DONE
;
1311 static void b43legacy_interrupt_ack(struct b43legacy_wldev
*dev
, u32 reason
)
1313 if (b43legacy_using_pio(dev
) &&
1314 (dev
->dev
->id
.revision
< 3) &&
1315 (!(reason
& B43legacy_IRQ_PIO_WORKAROUND
))) {
1316 /* Apply a PIO specific workaround to the dma_reasons */
1317 pio_irq_workaround(dev
, B43legacy_MMIO_PIO1_BASE
, 0);
1318 pio_irq_workaround(dev
, B43legacy_MMIO_PIO2_BASE
, 1);
1319 pio_irq_workaround(dev
, B43legacy_MMIO_PIO3_BASE
, 2);
1320 pio_irq_workaround(dev
, B43legacy_MMIO_PIO4_BASE
, 3);
1323 b43legacy_write32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
, reason
);
1325 b43legacy_write32(dev
, B43legacy_MMIO_DMA0_REASON
,
1326 dev
->dma_reason
[0]);
1327 b43legacy_write32(dev
, B43legacy_MMIO_DMA1_REASON
,
1328 dev
->dma_reason
[1]);
1329 b43legacy_write32(dev
, B43legacy_MMIO_DMA2_REASON
,
1330 dev
->dma_reason
[2]);
1331 b43legacy_write32(dev
, B43legacy_MMIO_DMA3_REASON
,
1332 dev
->dma_reason
[3]);
1333 b43legacy_write32(dev
, B43legacy_MMIO_DMA4_REASON
,
1334 dev
->dma_reason
[4]);
1335 b43legacy_write32(dev
, B43legacy_MMIO_DMA5_REASON
,
1336 dev
->dma_reason
[5]);
1339 /* Interrupt handler top-half */
1340 static irqreturn_t
b43legacy_interrupt_handler(int irq
, void *dev_id
)
1342 irqreturn_t ret
= IRQ_NONE
;
1343 struct b43legacy_wldev
*dev
= dev_id
;
1349 spin_lock(&dev
->wl
->irq_lock
);
1351 if (b43legacy_status(dev
) < B43legacy_STAT_STARTED
)
1353 reason
= b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
);
1354 if (reason
== 0xffffffff) /* shared IRQ */
1357 reason
&= b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_MASK
);
1361 dev
->dma_reason
[0] = b43legacy_read32(dev
,
1362 B43legacy_MMIO_DMA0_REASON
)
1364 dev
->dma_reason
[1] = b43legacy_read32(dev
,
1365 B43legacy_MMIO_DMA1_REASON
)
1367 dev
->dma_reason
[2] = b43legacy_read32(dev
,
1368 B43legacy_MMIO_DMA2_REASON
)
1370 dev
->dma_reason
[3] = b43legacy_read32(dev
,
1371 B43legacy_MMIO_DMA3_REASON
)
1373 dev
->dma_reason
[4] = b43legacy_read32(dev
,
1374 B43legacy_MMIO_DMA4_REASON
)
1376 dev
->dma_reason
[5] = b43legacy_read32(dev
,
1377 B43legacy_MMIO_DMA5_REASON
)
1380 b43legacy_interrupt_ack(dev
, reason
);
1381 /* disable all IRQs. They are enabled again in the bottom half. */
1382 dev
->irq_savedstate
= b43legacy_interrupt_disable(dev
,
1384 /* save the reason code and call our bottom half. */
1385 dev
->irq_reason
= reason
;
1386 tasklet_schedule(&dev
->isr_tasklet
);
1389 spin_unlock(&dev
->wl
->irq_lock
);
1394 static void b43legacy_release_firmware(struct b43legacy_wldev
*dev
)
1396 release_firmware(dev
->fw
.ucode
);
1397 dev
->fw
.ucode
= NULL
;
1398 release_firmware(dev
->fw
.pcm
);
1400 release_firmware(dev
->fw
.initvals
);
1401 dev
->fw
.initvals
= NULL
;
1402 release_firmware(dev
->fw
.initvals_band
);
1403 dev
->fw
.initvals_band
= NULL
;
1406 static void b43legacy_print_fw_helptext(struct b43legacy_wl
*wl
)
1408 b43legacyerr(wl
, "You must go to http://linuxwireless.org/en/users/"
1409 "Drivers/b43#devicefirmware "
1410 "and download the correct firmware (version 3).\n");
1413 static int do_request_fw(struct b43legacy_wldev
*dev
,
1415 const struct firmware
**fw
)
1417 char path
[sizeof(modparam_fwpostfix
) + 32];
1418 struct b43legacy_fw_header
*hdr
;
1425 snprintf(path
, ARRAY_SIZE(path
),
1426 "b43legacy%s/%s.fw",
1427 modparam_fwpostfix
, name
);
1428 err
= request_firmware(fw
, path
, dev
->dev
->dev
);
1430 b43legacyerr(dev
->wl
, "Firmware file \"%s\" not found "
1431 "or load failed.\n", path
);
1434 if ((*fw
)->size
< sizeof(struct b43legacy_fw_header
))
1436 hdr
= (struct b43legacy_fw_header
*)((*fw
)->data
);
1437 switch (hdr
->type
) {
1438 case B43legacy_FW_TYPE_UCODE
:
1439 case B43legacy_FW_TYPE_PCM
:
1440 size
= be32_to_cpu(hdr
->size
);
1441 if (size
!= (*fw
)->size
- sizeof(struct b43legacy_fw_header
))
1444 case B43legacy_FW_TYPE_IV
:
1455 b43legacyerr(dev
->wl
, "Firmware file \"%s\" format error.\n", path
);
1459 static int b43legacy_request_firmware(struct b43legacy_wldev
*dev
)
1461 struct b43legacy_firmware
*fw
= &dev
->fw
;
1462 const u8 rev
= dev
->dev
->id
.revision
;
1463 const char *filename
;
1467 tmshigh
= ssb_read32(dev
->dev
, SSB_TMSHIGH
);
1470 filename
= "ucode2";
1472 filename
= "ucode4";
1474 filename
= "ucode5";
1475 err
= do_request_fw(dev
, filename
, &fw
->ucode
);
1484 err
= do_request_fw(dev
, filename
, &fw
->pcm
);
1488 if (!fw
->initvals
) {
1489 switch (dev
->phy
.type
) {
1490 case B43legacy_PHYTYPE_G
:
1491 if ((rev
>= 5) && (rev
<= 10))
1492 filename
= "b0g0initvals5";
1493 else if (rev
== 2 || rev
== 4)
1494 filename
= "b0g0initvals2";
1496 goto err_no_initvals
;
1499 goto err_no_initvals
;
1501 err
= do_request_fw(dev
, filename
, &fw
->initvals
);
1505 if (!fw
->initvals_band
) {
1506 switch (dev
->phy
.type
) {
1507 case B43legacy_PHYTYPE_G
:
1508 if ((rev
>= 5) && (rev
<= 10))
1509 filename
= "b0g0bsinitvals5";
1512 else if (rev
== 2 || rev
== 4)
1515 goto err_no_initvals
;
1518 goto err_no_initvals
;
1520 err
= do_request_fw(dev
, filename
, &fw
->initvals_band
);
1528 b43legacy_print_fw_helptext(dev
->wl
);
1533 b43legacyerr(dev
->wl
, "No Initial Values firmware file for PHY %u, "
1534 "core rev %u\n", dev
->phy
.type
, rev
);
1538 b43legacy_release_firmware(dev
);
1542 static int b43legacy_upload_microcode(struct b43legacy_wldev
*dev
)
1544 const size_t hdr_len
= sizeof(struct b43legacy_fw_header
);
1555 /* Upload Microcode. */
1556 data
= (__be32
*) (dev
->fw
.ucode
->data
+ hdr_len
);
1557 len
= (dev
->fw
.ucode
->size
- hdr_len
) / sizeof(__be32
);
1558 b43legacy_shm_control_word(dev
,
1559 B43legacy_SHM_UCODE
|
1560 B43legacy_SHM_AUTOINC_W
,
1562 for (i
= 0; i
< len
; i
++) {
1563 b43legacy_write32(dev
, B43legacy_MMIO_SHM_DATA
,
1564 be32_to_cpu(data
[i
]));
1569 /* Upload PCM data. */
1570 data
= (__be32
*) (dev
->fw
.pcm
->data
+ hdr_len
);
1571 len
= (dev
->fw
.pcm
->size
- hdr_len
) / sizeof(__be32
);
1572 b43legacy_shm_control_word(dev
, B43legacy_SHM_HW
, 0x01EA);
1573 b43legacy_write32(dev
, B43legacy_MMIO_SHM_DATA
, 0x00004000);
1574 /* No need for autoinc bit in SHM_HW */
1575 b43legacy_shm_control_word(dev
, B43legacy_SHM_HW
, 0x01EB);
1576 for (i
= 0; i
< len
; i
++) {
1577 b43legacy_write32(dev
, B43legacy_MMIO_SHM_DATA
,
1578 be32_to_cpu(data
[i
]));
1583 b43legacy_write32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
,
1585 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
, 0x00020402);
1587 /* Wait for the microcode to load and respond */
1590 tmp
= b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
);
1591 if (tmp
== B43legacy_IRQ_MAC_SUSPENDED
)
1594 if (i
>= B43legacy_IRQWAIT_MAX_RETRIES
) {
1595 b43legacyerr(dev
->wl
, "Microcode not responding\n");
1596 b43legacy_print_fw_helptext(dev
->wl
);
1602 /* dummy read follows */
1603 b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
);
1605 /* Get and check the revisions. */
1606 fwrev
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
1607 B43legacy_SHM_SH_UCODEREV
);
1608 fwpatch
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
1609 B43legacy_SHM_SH_UCODEPATCH
);
1610 fwdate
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
1611 B43legacy_SHM_SH_UCODEDATE
);
1612 fwtime
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
1613 B43legacy_SHM_SH_UCODETIME
);
1615 if (fwrev
> 0x128) {
1616 b43legacyerr(dev
->wl
, "YOU ARE TRYING TO LOAD V4 FIRMWARE."
1617 " Only firmware from binary drivers version 3.x"
1618 " is supported. You must change your firmware"
1620 b43legacy_print_fw_helptext(dev
->wl
);
1621 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
, 0);
1625 b43legacydbg(dev
->wl
, "Loading firmware version 0x%X, patch level %u "
1626 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", fwrev
, fwpatch
,
1627 (fwdate
>> 12) & 0xF, (fwdate
>> 8) & 0xF, fwdate
& 0xFF,
1628 (fwtime
>> 11) & 0x1F, (fwtime
>> 5) & 0x3F, fwtime
& 0x1F);
1630 dev
->fw
.rev
= fwrev
;
1631 dev
->fw
.patch
= fwpatch
;
1637 static int b43legacy_write_initvals(struct b43legacy_wldev
*dev
,
1638 const struct b43legacy_iv
*ivals
,
1642 const struct b43legacy_iv
*iv
;
1647 BUILD_BUG_ON(sizeof(struct b43legacy_iv
) != 6);
1649 for (i
= 0; i
< count
; i
++) {
1650 if (array_size
< sizeof(iv
->offset_size
))
1652 array_size
-= sizeof(iv
->offset_size
);
1653 offset
= be16_to_cpu(iv
->offset_size
);
1654 bit32
= !!(offset
& B43legacy_IV_32BIT
);
1655 offset
&= B43legacy_IV_OFFSET_MASK
;
1656 if (offset
>= 0x1000)
1661 if (array_size
< sizeof(iv
->data
.d32
))
1663 array_size
-= sizeof(iv
->data
.d32
);
1665 value
= be32_to_cpu(get_unaligned(&iv
->data
.d32
));
1666 b43legacy_write32(dev
, offset
, value
);
1668 iv
= (const struct b43legacy_iv
*)((const uint8_t *)iv
+
1674 if (array_size
< sizeof(iv
->data
.d16
))
1676 array_size
-= sizeof(iv
->data
.d16
);
1678 value
= be16_to_cpu(iv
->data
.d16
);
1679 b43legacy_write16(dev
, offset
, value
);
1681 iv
= (const struct b43legacy_iv
*)((const uint8_t *)iv
+
1692 b43legacyerr(dev
->wl
, "Initial Values Firmware file-format error.\n");
1693 b43legacy_print_fw_helptext(dev
->wl
);
1698 static int b43legacy_upload_initvals(struct b43legacy_wldev
*dev
)
1700 const size_t hdr_len
= sizeof(struct b43legacy_fw_header
);
1701 const struct b43legacy_fw_header
*hdr
;
1702 struct b43legacy_firmware
*fw
= &dev
->fw
;
1703 const struct b43legacy_iv
*ivals
;
1707 hdr
= (const struct b43legacy_fw_header
*)(fw
->initvals
->data
);
1708 ivals
= (const struct b43legacy_iv
*)(fw
->initvals
->data
+ hdr_len
);
1709 count
= be32_to_cpu(hdr
->size
);
1710 err
= b43legacy_write_initvals(dev
, ivals
, count
,
1711 fw
->initvals
->size
- hdr_len
);
1714 if (fw
->initvals_band
) {
1715 hdr
= (const struct b43legacy_fw_header
*)
1716 (fw
->initvals_band
->data
);
1717 ivals
= (const struct b43legacy_iv
*)(fw
->initvals_band
->data
1719 count
= be32_to_cpu(hdr
->size
);
1720 err
= b43legacy_write_initvals(dev
, ivals
, count
,
1721 fw
->initvals_band
->size
- hdr_len
);
1730 /* Initialize the GPIOs
1731 * http://bcm-specs.sipsolutions.net/GPIO
1733 static int b43legacy_gpio_init(struct b43legacy_wldev
*dev
)
1735 struct ssb_bus
*bus
= dev
->dev
->bus
;
1736 struct ssb_device
*gpiodev
, *pcidev
= NULL
;
1740 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
,
1741 b43legacy_read32(dev
,
1742 B43legacy_MMIO_STATUS_BITFIELD
)
1745 b43legacy_write16(dev
, B43legacy_MMIO_GPIO_MASK
,
1746 b43legacy_read16(dev
,
1747 B43legacy_MMIO_GPIO_MASK
)
1752 if (dev
->dev
->bus
->chip_id
== 0x4301) {
1756 if (dev
->dev
->bus
->sprom
.r1
.boardflags_lo
& B43legacy_BFL_PACTRL
) {
1757 b43legacy_write16(dev
, B43legacy_MMIO_GPIO_MASK
,
1758 b43legacy_read16(dev
,
1759 B43legacy_MMIO_GPIO_MASK
)
1764 if (dev
->dev
->id
.revision
>= 2)
1765 mask
|= 0x0010; /* FIXME: This is redundant. */
1767 #ifdef CONFIG_SSB_DRIVER_PCICORE
1768 pcidev
= bus
->pcicore
.dev
;
1770 gpiodev
= bus
->chipco
.dev
? : pcidev
;
1773 ssb_write32(gpiodev
, B43legacy_GPIO_CONTROL
,
1774 (ssb_read32(gpiodev
, B43legacy_GPIO_CONTROL
)
1780 /* Turn off all GPIO stuff. Call this on module unload, for example. */
1781 static void b43legacy_gpio_cleanup(struct b43legacy_wldev
*dev
)
1783 struct ssb_bus
*bus
= dev
->dev
->bus
;
1784 struct ssb_device
*gpiodev
, *pcidev
= NULL
;
1786 #ifdef CONFIG_SSB_DRIVER_PCICORE
1787 pcidev
= bus
->pcicore
.dev
;
1789 gpiodev
= bus
->chipco
.dev
? : pcidev
;
1792 ssb_write32(gpiodev
, B43legacy_GPIO_CONTROL
, 0);
1795 /* http://bcm-specs.sipsolutions.net/EnableMac */
1796 void b43legacy_mac_enable(struct b43legacy_wldev
*dev
)
1798 dev
->mac_suspended
--;
1799 B43legacy_WARN_ON(dev
->mac_suspended
< 0);
1800 if (dev
->mac_suspended
== 0) {
1801 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
,
1802 b43legacy_read32(dev
,
1803 B43legacy_MMIO_STATUS_BITFIELD
)
1804 | B43legacy_SBF_MAC_ENABLED
);
1805 b43legacy_write32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
,
1806 B43legacy_IRQ_MAC_SUSPENDED
);
1807 /* the next two are dummy reads */
1808 b43legacy_read32(dev
, B43legacy_MMIO_STATUS_BITFIELD
);
1809 b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
);
1810 b43legacy_power_saving_ctl_bits(dev
, -1, -1);
1814 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
1815 void b43legacy_mac_suspend(struct b43legacy_wldev
*dev
)
1820 B43legacy_WARN_ON(dev
->mac_suspended
< 0);
1821 if (dev
->mac_suspended
== 0) {
1822 b43legacy_power_saving_ctl_bits(dev
, -1, 1);
1823 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
,
1824 b43legacy_read32(dev
,
1825 B43legacy_MMIO_STATUS_BITFIELD
)
1826 & ~B43legacy_SBF_MAC_ENABLED
);
1827 b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
);
1828 for (i
= 10000; i
; i
--) {
1829 tmp
= b43legacy_read32(dev
,
1830 B43legacy_MMIO_GEN_IRQ_REASON
);
1831 if (tmp
& B43legacy_IRQ_MAC_SUSPENDED
)
1835 b43legacyerr(dev
->wl
, "MAC suspend failed\n");
1838 dev
->mac_suspended
++;
1841 static void b43legacy_adjust_opmode(struct b43legacy_wldev
*dev
)
1843 struct b43legacy_wl
*wl
= dev
->wl
;
1847 ctl
= b43legacy_read32(dev
, B43legacy_MMIO_MACCTL
);
1848 /* Reset status to STA infrastructure mode. */
1849 ctl
&= ~B43legacy_MACCTL_AP
;
1850 ctl
&= ~B43legacy_MACCTL_KEEP_CTL
;
1851 ctl
&= ~B43legacy_MACCTL_KEEP_BADPLCP
;
1852 ctl
&= ~B43legacy_MACCTL_KEEP_BAD
;
1853 ctl
&= ~B43legacy_MACCTL_PROMISC
;
1854 ctl
&= ~B43legacy_MACCTL_BEACPROMISC
;
1855 ctl
|= B43legacy_MACCTL_INFRA
;
1857 if (b43legacy_is_mode(wl
, IEEE80211_IF_TYPE_AP
))
1858 ctl
|= B43legacy_MACCTL_AP
;
1859 else if (b43legacy_is_mode(wl
, IEEE80211_IF_TYPE_IBSS
))
1860 ctl
&= ~B43legacy_MACCTL_INFRA
;
1862 if (wl
->filter_flags
& FIF_CONTROL
)
1863 ctl
|= B43legacy_MACCTL_KEEP_CTL
;
1864 if (wl
->filter_flags
& FIF_FCSFAIL
)
1865 ctl
|= B43legacy_MACCTL_KEEP_BAD
;
1866 if (wl
->filter_flags
& FIF_PLCPFAIL
)
1867 ctl
|= B43legacy_MACCTL_KEEP_BADPLCP
;
1868 if (wl
->filter_flags
& FIF_PROMISC_IN_BSS
)
1869 ctl
|= B43legacy_MACCTL_PROMISC
;
1870 if (wl
->filter_flags
& FIF_BCN_PRBRESP_PROMISC
)
1871 ctl
|= B43legacy_MACCTL_BEACPROMISC
;
1873 /* Workaround: On old hardware the HW-MAC-address-filter
1874 * doesn't work properly, so always run promisc in filter
1875 * it in software. */
1876 if (dev
->dev
->id
.revision
<= 4)
1877 ctl
|= B43legacy_MACCTL_PROMISC
;
1879 b43legacy_write32(dev
, B43legacy_MMIO_MACCTL
, ctl
);
1882 if ((ctl
& B43legacy_MACCTL_INFRA
) &&
1883 !(ctl
& B43legacy_MACCTL_AP
)) {
1884 if (dev
->dev
->bus
->chip_id
== 0x4306 &&
1885 dev
->dev
->bus
->chip_rev
== 3)
1890 b43legacy_write16(dev
, 0x612, cfp_pretbtt
);
1893 static void b43legacy_rate_memory_write(struct b43legacy_wldev
*dev
,
1901 offset
+= (b43legacy_plcp_get_ratecode_ofdm(rate
) & 0x000F) * 2;
1904 offset
+= (b43legacy_plcp_get_ratecode_cck(rate
) & 0x000F) * 2;
1906 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, offset
+ 0x20,
1907 b43legacy_shm_read16(dev
,
1908 B43legacy_SHM_SHARED
, offset
));
1911 static void b43legacy_rate_memory_init(struct b43legacy_wldev
*dev
)
1913 switch (dev
->phy
.type
) {
1914 case B43legacy_PHYTYPE_G
:
1915 b43legacy_rate_memory_write(dev
, B43legacy_OFDM_RATE_6MB
, 1);
1916 b43legacy_rate_memory_write(dev
, B43legacy_OFDM_RATE_12MB
, 1);
1917 b43legacy_rate_memory_write(dev
, B43legacy_OFDM_RATE_18MB
, 1);
1918 b43legacy_rate_memory_write(dev
, B43legacy_OFDM_RATE_24MB
, 1);
1919 b43legacy_rate_memory_write(dev
, B43legacy_OFDM_RATE_36MB
, 1);
1920 b43legacy_rate_memory_write(dev
, B43legacy_OFDM_RATE_48MB
, 1);
1921 b43legacy_rate_memory_write(dev
, B43legacy_OFDM_RATE_54MB
, 1);
1923 case B43legacy_PHYTYPE_B
:
1924 b43legacy_rate_memory_write(dev
, B43legacy_CCK_RATE_1MB
, 0);
1925 b43legacy_rate_memory_write(dev
, B43legacy_CCK_RATE_2MB
, 0);
1926 b43legacy_rate_memory_write(dev
, B43legacy_CCK_RATE_5MB
, 0);
1927 b43legacy_rate_memory_write(dev
, B43legacy_CCK_RATE_11MB
, 0);
1930 B43legacy_BUG_ON(1);
1934 /* Set the TX-Antenna for management frames sent by firmware. */
1935 static void b43legacy_mgmtframe_txantenna(struct b43legacy_wldev
*dev
,
1942 case B43legacy_ANTENNA0
:
1943 ant
|= B43legacy_TX4_PHY_ANT0
;
1945 case B43legacy_ANTENNA1
:
1946 ant
|= B43legacy_TX4_PHY_ANT1
;
1948 case B43legacy_ANTENNA_AUTO
:
1949 ant
|= B43legacy_TX4_PHY_ANTLAST
;
1952 B43legacy_BUG_ON(1);
1955 /* FIXME We also need to set the other flags of the PHY control
1956 * field somewhere. */
1959 tmp
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
1960 B43legacy_SHM_SH_BEACPHYCTL
);
1961 tmp
= (tmp
& ~B43legacy_TX4_PHY_ANT
) | ant
;
1962 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
1963 B43legacy_SHM_SH_BEACPHYCTL
, tmp
);
1965 tmp
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
1966 B43legacy_SHM_SH_ACKCTSPHYCTL
);
1967 tmp
= (tmp
& ~B43legacy_TX4_PHY_ANT
) | ant
;
1968 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
1969 B43legacy_SHM_SH_ACKCTSPHYCTL
, tmp
);
1970 /* For Probe Resposes */
1971 tmp
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
1972 B43legacy_SHM_SH_PRPHYCTL
);
1973 tmp
= (tmp
& ~B43legacy_TX4_PHY_ANT
) | ant
;
1974 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
1975 B43legacy_SHM_SH_PRPHYCTL
, tmp
);
1978 /* Returns TRUE, if the radio is enabled in hardware. */
1979 static bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev
*dev
)
1981 if (dev
->phy
.rev
>= 3) {
1982 if (!(b43legacy_read32(dev
, B43legacy_MMIO_RADIO_HWENABLED_HI
)
1983 & B43legacy_MMIO_RADIO_HWENABLED_HI_MASK
))
1986 if (b43legacy_read16(dev
, B43legacy_MMIO_RADIO_HWENABLED_LO
)
1987 & B43legacy_MMIO_RADIO_HWENABLED_LO_MASK
)
1993 /* This is the opposite of b43legacy_chip_init() */
1994 static void b43legacy_chip_exit(struct b43legacy_wldev
*dev
)
1996 b43legacy_radio_turn_off(dev
, 1);
1997 b43legacy_leds_exit(dev
);
1998 b43legacy_gpio_cleanup(dev
);
1999 /* firmware is released later */
2002 /* Initialize the chip
2003 * http://bcm-specs.sipsolutions.net/ChipInit
2005 static int b43legacy_chip_init(struct b43legacy_wldev
*dev
)
2007 struct b43legacy_phy
*phy
= &dev
->phy
;
2013 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
,
2014 B43legacy_SBF_CORE_READY
2015 | B43legacy_SBF_400
);
2017 err
= b43legacy_request_firmware(dev
);
2020 err
= b43legacy_upload_microcode(dev
);
2022 goto out
; /* firmware is released later */
2024 err
= b43legacy_gpio_init(dev
);
2026 goto out
; /* firmware is released later */
2027 b43legacy_leds_init(dev
);
2029 err
= b43legacy_upload_initvals(dev
);
2032 b43legacy_radio_turn_on(dev
);
2034 b43legacy_write16(dev
, 0x03E6, 0x0000);
2035 err
= b43legacy_phy_init(dev
);
2039 /* Select initial Interference Mitigation. */
2040 tmp
= phy
->interfmode
;
2041 phy
->interfmode
= B43legacy_INTERFMODE_NONE
;
2042 b43legacy_radio_set_interference_mitigation(dev
, tmp
);
2044 b43legacy_phy_set_antenna_diversity(dev
);
2045 b43legacy_mgmtframe_txantenna(dev
, B43legacy_ANTENNA_DEFAULT
);
2047 if (phy
->type
== B43legacy_PHYTYPE_B
) {
2048 value16
= b43legacy_read16(dev
, 0x005E);
2050 b43legacy_write16(dev
, 0x005E, value16
);
2052 b43legacy_write32(dev
, 0x0100, 0x01000000);
2053 if (dev
->dev
->id
.revision
< 5)
2054 b43legacy_write32(dev
, 0x010C, 0x01000000);
2056 value32
= b43legacy_read32(dev
, B43legacy_MMIO_STATUS_BITFIELD
);
2057 value32
&= ~B43legacy_SBF_MODE_NOTADHOC
;
2058 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
, value32
);
2059 value32
= b43legacy_read32(dev
, B43legacy_MMIO_STATUS_BITFIELD
);
2060 value32
|= B43legacy_SBF_MODE_NOTADHOC
;
2061 b43legacy_write32(dev
, B43legacy_MMIO_STATUS_BITFIELD
, value32
);
2063 if (b43legacy_using_pio(dev
)) {
2064 b43legacy_write32(dev
, 0x0210, 0x00000100);
2065 b43legacy_write32(dev
, 0x0230, 0x00000100);
2066 b43legacy_write32(dev
, 0x0250, 0x00000100);
2067 b43legacy_write32(dev
, 0x0270, 0x00000100);
2068 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, 0x0034,
2072 /* Probe Response Timeout value */
2073 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2074 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, 0x0074, 0x0000);
2076 /* Initially set the wireless operation mode. */
2077 b43legacy_adjust_opmode(dev
);
2079 if (dev
->dev
->id
.revision
< 3) {
2080 b43legacy_write16(dev
, 0x060E, 0x0000);
2081 b43legacy_write16(dev
, 0x0610, 0x8000);
2082 b43legacy_write16(dev
, 0x0604, 0x0000);
2083 b43legacy_write16(dev
, 0x0606, 0x0200);
2085 b43legacy_write32(dev
, 0x0188, 0x80000000);
2086 b43legacy_write32(dev
, 0x018C, 0x02000000);
2088 b43legacy_write32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
, 0x00004000);
2089 b43legacy_write32(dev
, B43legacy_MMIO_DMA0_IRQ_MASK
, 0x0001DC00);
2090 b43legacy_write32(dev
, B43legacy_MMIO_DMA1_IRQ_MASK
, 0x0000DC00);
2091 b43legacy_write32(dev
, B43legacy_MMIO_DMA2_IRQ_MASK
, 0x0000DC00);
2092 b43legacy_write32(dev
, B43legacy_MMIO_DMA3_IRQ_MASK
, 0x0001DC00);
2093 b43legacy_write32(dev
, B43legacy_MMIO_DMA4_IRQ_MASK
, 0x0000DC00);
2094 b43legacy_write32(dev
, B43legacy_MMIO_DMA5_IRQ_MASK
, 0x0000DC00);
2096 value32
= ssb_read32(dev
->dev
, SSB_TMSLOW
);
2097 value32
|= 0x00100000;
2098 ssb_write32(dev
->dev
, SSB_TMSLOW
, value32
);
2100 b43legacy_write16(dev
, B43legacy_MMIO_POWERUP_DELAY
,
2101 dev
->dev
->bus
->chipco
.fast_pwrup_delay
);
2103 B43legacy_WARN_ON(err
!= 0);
2104 b43legacydbg(dev
->wl
, "Chip initialized\n");
2109 b43legacy_radio_turn_off(dev
, 1);
2111 b43legacy_leds_exit(dev
);
2112 b43legacy_gpio_cleanup(dev
);
2116 static void b43legacy_periodic_every120sec(struct b43legacy_wldev
*dev
)
2118 struct b43legacy_phy
*phy
= &dev
->phy
;
2120 if (phy
->type
!= B43legacy_PHYTYPE_G
|| phy
->rev
< 2)
2123 b43legacy_mac_suspend(dev
);
2124 b43legacy_phy_lo_g_measure(dev
);
2125 b43legacy_mac_enable(dev
);
2128 static void b43legacy_periodic_every60sec(struct b43legacy_wldev
*dev
)
2130 b43legacy_phy_lo_mark_all_unused(dev
);
2131 if (dev
->dev
->bus
->sprom
.r1
.boardflags_lo
& B43legacy_BFL_RSSI
) {
2132 b43legacy_mac_suspend(dev
);
2133 b43legacy_calc_nrssi_slope(dev
);
2134 b43legacy_mac_enable(dev
);
2138 static void b43legacy_periodic_every30sec(struct b43legacy_wldev
*dev
)
2140 /* Update device statistics. */
2141 b43legacy_calculate_link_quality(dev
);
2144 static void b43legacy_periodic_every15sec(struct b43legacy_wldev
*dev
)
2146 b43legacy_phy_xmitpower(dev
); /* FIXME: unless scanning? */
2149 static void b43legacy_periodic_every1sec(struct b43legacy_wldev
*dev
)
2151 bool radio_hw_enable
;
2153 /* check if radio hardware enabled status changed */
2154 radio_hw_enable
= b43legacy_is_hw_radio_enabled(dev
);
2155 if (unlikely(dev
->radio_hw_enable
!= radio_hw_enable
)) {
2156 dev
->radio_hw_enable
= radio_hw_enable
;
2157 b43legacy_rfkill_toggled(dev
, radio_hw_enable
);
2161 static void do_periodic_work(struct b43legacy_wldev
*dev
)
2165 state
= dev
->periodic_state
;
2166 if (state
% 120 == 0)
2167 b43legacy_periodic_every120sec(dev
);
2168 if (state
% 60 == 0)
2169 b43legacy_periodic_every60sec(dev
);
2170 if (state
% 30 == 0)
2171 b43legacy_periodic_every30sec(dev
);
2172 if (state
% 15 == 0)
2173 b43legacy_periodic_every15sec(dev
);
2174 b43legacy_periodic_every1sec(dev
);
2177 /* Estimate a "Badness" value based on the periodic work
2178 * state-machine state. "Badness" is worse (bigger), if the
2179 * periodic work will take longer.
2181 static int estimate_periodic_work_badness(unsigned int state
)
2185 if (state
% 120 == 0) /* every 120 sec */
2187 if (state
% 60 == 0) /* every 60 sec */
2189 if (state
% 30 == 0) /* every 30 sec */
2191 if (state
% 15 == 0) /* every 15 sec */
2194 #define BADNESS_LIMIT 4
2198 static void b43legacy_periodic_work_handler(struct work_struct
*work
)
2200 struct b43legacy_wldev
*dev
=
2201 container_of(work
, struct b43legacy_wldev
,
2202 periodic_work
.work
);
2203 unsigned long flags
;
2204 unsigned long delay
;
2208 mutex_lock(&dev
->wl
->mutex
);
2210 if (unlikely(b43legacy_status(dev
) != B43legacy_STAT_STARTED
))
2212 if (b43legacy_debug(dev
, B43legacy_DBG_PWORK_STOP
))
2215 badness
= estimate_periodic_work_badness(dev
->periodic_state
);
2216 if (badness
> BADNESS_LIMIT
) {
2217 spin_lock_irqsave(&dev
->wl
->irq_lock
, flags
);
2218 /* Suspend TX as we don't want to transmit packets while
2219 * we recalibrate the hardware. */
2220 b43legacy_tx_suspend(dev
);
2221 savedirqs
= b43legacy_interrupt_disable(dev
,
2223 /* Periodic work will take a long time, so we want it to
2224 * be preemtible and release the spinlock. */
2225 spin_unlock_irqrestore(&dev
->wl
->irq_lock
, flags
);
2226 b43legacy_synchronize_irq(dev
);
2228 do_periodic_work(dev
);
2230 spin_lock_irqsave(&dev
->wl
->irq_lock
, flags
);
2231 b43legacy_interrupt_enable(dev
, savedirqs
);
2232 b43legacy_tx_resume(dev
);
2234 spin_unlock_irqrestore(&dev
->wl
->irq_lock
, flags
);
2236 /* Take the global driver lock. This will lock any operation. */
2237 spin_lock_irqsave(&dev
->wl
->irq_lock
, flags
);
2239 do_periodic_work(dev
);
2242 spin_unlock_irqrestore(&dev
->wl
->irq_lock
, flags
);
2244 dev
->periodic_state
++;
2246 if (b43legacy_debug(dev
, B43legacy_DBG_PWORK_FAST
))
2247 delay
= msecs_to_jiffies(50);
2249 delay
= round_jiffies_relative(HZ
);
2250 queue_delayed_work(dev
->wl
->hw
->workqueue
,
2251 &dev
->periodic_work
, delay
);
2253 mutex_unlock(&dev
->wl
->mutex
);
2256 static void b43legacy_periodic_tasks_setup(struct b43legacy_wldev
*dev
)
2258 struct delayed_work
*work
= &dev
->periodic_work
;
2260 dev
->periodic_state
= 0;
2261 INIT_DELAYED_WORK(work
, b43legacy_periodic_work_handler
);
2262 queue_delayed_work(dev
->wl
->hw
->workqueue
, work
, 0);
2265 /* Validate access to the chip (SHM) */
2266 static int b43legacy_validate_chipaccess(struct b43legacy_wldev
*dev
)
2271 shm_backup
= b43legacy_shm_read32(dev
, B43legacy_SHM_SHARED
, 0);
2272 b43legacy_shm_write32(dev
, B43legacy_SHM_SHARED
, 0, 0xAA5555AA);
2273 if (b43legacy_shm_read32(dev
, B43legacy_SHM_SHARED
, 0) !=
2276 b43legacy_shm_write32(dev
, B43legacy_SHM_SHARED
, 0, 0x55AAAA55);
2277 if (b43legacy_shm_read32(dev
, B43legacy_SHM_SHARED
, 0) !=
2280 b43legacy_shm_write32(dev
, B43legacy_SHM_SHARED
, 0, shm_backup
);
2282 value
= b43legacy_read32(dev
, B43legacy_MMIO_MACCTL
);
2283 if ((value
| B43legacy_MACCTL_GMODE
) !=
2284 (B43legacy_MACCTL_GMODE
| B43legacy_MACCTL_IHR_ENABLED
))
2287 value
= b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_REASON
);
2293 b43legacyerr(dev
->wl
, "Failed to validate the chipaccess\n");
2297 static void b43legacy_security_init(struct b43legacy_wldev
*dev
)
2299 dev
->max_nr_keys
= (dev
->dev
->id
.revision
>= 5) ? 58 : 20;
2300 B43legacy_WARN_ON(dev
->max_nr_keys
> ARRAY_SIZE(dev
->key
));
2301 dev
->ktp
= b43legacy_shm_read16(dev
, B43legacy_SHM_SHARED
,
2303 /* KTP is a word address, but we address SHM bytewise.
2304 * So multiply by two.
2307 if (dev
->dev
->id
.revision
>= 5)
2308 /* Number of RCMTA address slots */
2309 b43legacy_write16(dev
, B43legacy_MMIO_RCMTA_COUNT
,
2310 dev
->max_nr_keys
- 8);
2313 static int b43legacy_rng_read(struct hwrng
*rng
, u32
*data
)
2315 struct b43legacy_wl
*wl
= (struct b43legacy_wl
*)rng
->priv
;
2316 unsigned long flags
;
2318 /* Don't take wl->mutex here, as it could deadlock with
2319 * hwrng internal locking. It's not needed to take
2320 * wl->mutex here, anyway. */
2322 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2323 *data
= b43legacy_read16(wl
->current_dev
, B43legacy_MMIO_RNG
);
2324 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2326 return (sizeof(u16
));
2329 static void b43legacy_rng_exit(struct b43legacy_wl
*wl
)
2331 if (wl
->rng_initialized
)
2332 hwrng_unregister(&wl
->rng
);
2335 static int b43legacy_rng_init(struct b43legacy_wl
*wl
)
2339 snprintf(wl
->rng_name
, ARRAY_SIZE(wl
->rng_name
),
2340 "%s_%s", KBUILD_MODNAME
, wiphy_name(wl
->hw
->wiphy
));
2341 wl
->rng
.name
= wl
->rng_name
;
2342 wl
->rng
.data_read
= b43legacy_rng_read
;
2343 wl
->rng
.priv
= (unsigned long)wl
;
2344 wl
->rng_initialized
= 1;
2345 err
= hwrng_register(&wl
->rng
);
2347 wl
->rng_initialized
= 0;
2348 b43legacyerr(wl
, "Failed to register the random "
2349 "number generator (%d)\n", err
);
2355 static int b43legacy_tx(struct ieee80211_hw
*hw
,
2356 struct sk_buff
*skb
,
2357 struct ieee80211_tx_control
*ctl
)
2359 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
2360 struct b43legacy_wldev
*dev
= wl
->current_dev
;
2362 unsigned long flags
;
2366 if (unlikely(b43legacy_status(dev
) < B43legacy_STAT_STARTED
))
2368 /* DMA-TX is done without a global lock. */
2369 if (b43legacy_using_pio(dev
)) {
2370 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2371 err
= b43legacy_pio_tx(dev
, skb
, ctl
);
2372 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2374 err
= b43legacy_dma_tx(dev
, skb
, ctl
);
2377 return NETDEV_TX_BUSY
;
2378 return NETDEV_TX_OK
;
2381 static int b43legacy_conf_tx(struct ieee80211_hw
*hw
,
2383 const struct ieee80211_tx_queue_params
*params
)
2388 static int b43legacy_get_tx_stats(struct ieee80211_hw
*hw
,
2389 struct ieee80211_tx_queue_stats
*stats
)
2391 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
2392 struct b43legacy_wldev
*dev
= wl
->current_dev
;
2393 unsigned long flags
;
2398 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2399 if (likely(b43legacy_status(dev
) >= B43legacy_STAT_STARTED
)) {
2400 if (b43legacy_using_pio(dev
))
2401 b43legacy_pio_get_tx_stats(dev
, stats
);
2403 b43legacy_dma_get_tx_stats(dev
, stats
);
2406 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2411 static int b43legacy_get_stats(struct ieee80211_hw
*hw
,
2412 struct ieee80211_low_level_stats
*stats
)
2414 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
2415 unsigned long flags
;
2417 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2418 memcpy(stats
, &wl
->ieee_stats
, sizeof(*stats
));
2419 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2424 static const char *phymode_to_string(unsigned int phymode
)
2427 case B43legacy_PHYMODE_B
:
2429 case B43legacy_PHYMODE_G
:
2432 B43legacy_BUG_ON(1);
2437 static int find_wldev_for_phymode(struct b43legacy_wl
*wl
,
2438 unsigned int phymode
,
2439 struct b43legacy_wldev
**dev
,
2442 struct b43legacy_wldev
*d
;
2444 list_for_each_entry(d
, &wl
->devlist
, list
) {
2445 if (d
->phy
.possible_phymodes
& phymode
) {
2446 /* Ok, this device supports the PHY-mode.
2447 * Set the gmode bit. */
2458 static void b43legacy_put_phy_into_reset(struct b43legacy_wldev
*dev
)
2460 struct ssb_device
*sdev
= dev
->dev
;
2463 tmslow
= ssb_read32(sdev
, SSB_TMSLOW
);
2464 tmslow
&= ~B43legacy_TMSLOW_GMODE
;
2465 tmslow
|= B43legacy_TMSLOW_PHYRESET
;
2466 tmslow
|= SSB_TMSLOW_FGC
;
2467 ssb_write32(sdev
, SSB_TMSLOW
, tmslow
);
2470 tmslow
= ssb_read32(sdev
, SSB_TMSLOW
);
2471 tmslow
&= ~SSB_TMSLOW_FGC
;
2472 tmslow
|= B43legacy_TMSLOW_PHYRESET
;
2473 ssb_write32(sdev
, SSB_TMSLOW
, tmslow
);
2477 /* Expects wl->mutex locked */
2478 static int b43legacy_switch_phymode(struct b43legacy_wl
*wl
,
2479 unsigned int new_mode
)
2481 struct b43legacy_wldev
*up_dev
;
2482 struct b43legacy_wldev
*down_dev
;
2487 err
= find_wldev_for_phymode(wl
, new_mode
, &up_dev
, &gmode
);
2489 b43legacyerr(wl
, "Could not find a device for %s-PHY mode\n",
2490 phymode_to_string(new_mode
));
2493 if ((up_dev
== wl
->current_dev
) &&
2494 (!!wl
->current_dev
->phy
.gmode
== !!gmode
))
2495 /* This device is already running. */
2497 b43legacydbg(wl
, "Reconfiguring PHYmode to %s-PHY\n",
2498 phymode_to_string(new_mode
));
2499 down_dev
= wl
->current_dev
;
2501 prev_status
= b43legacy_status(down_dev
);
2502 /* Shutdown the currently running core. */
2503 if (prev_status
>= B43legacy_STAT_STARTED
)
2504 b43legacy_wireless_core_stop(down_dev
);
2505 if (prev_status
>= B43legacy_STAT_INITIALIZED
)
2506 b43legacy_wireless_core_exit(down_dev
);
2508 if (down_dev
!= up_dev
)
2509 /* We switch to a different core, so we put PHY into
2510 * RESET on the old core. */
2511 b43legacy_put_phy_into_reset(down_dev
);
2513 /* Now start the new core. */
2514 up_dev
->phy
.gmode
= gmode
;
2515 if (prev_status
>= B43legacy_STAT_INITIALIZED
) {
2516 err
= b43legacy_wireless_core_init(up_dev
);
2518 b43legacyerr(wl
, "Fatal: Could not initialize device"
2519 " for newly selected %s-PHY mode\n",
2520 phymode_to_string(new_mode
));
2524 if (prev_status
>= B43legacy_STAT_STARTED
) {
2525 err
= b43legacy_wireless_core_start(up_dev
);
2527 b43legacyerr(wl
, "Fatal: Coult not start device for "
2528 "newly selected %s-PHY mode\n",
2529 phymode_to_string(new_mode
));
2530 b43legacy_wireless_core_exit(up_dev
);
2534 B43legacy_WARN_ON(b43legacy_status(up_dev
) != prev_status
);
2536 b43legacy_shm_write32(up_dev
, B43legacy_SHM_SHARED
, 0x003E, 0);
2538 wl
->current_dev
= up_dev
;
2542 /* Whoops, failed to init the new core. No core is operating now. */
2543 wl
->current_dev
= NULL
;
2547 static int b43legacy_antenna_from_ieee80211(u8 antenna
)
2550 case 0: /* default/diversity */
2551 return B43legacy_ANTENNA_DEFAULT
;
2552 case 1: /* Antenna 0 */
2553 return B43legacy_ANTENNA0
;
2554 case 2: /* Antenna 1 */
2555 return B43legacy_ANTENNA1
;
2557 return B43legacy_ANTENNA_DEFAULT
;
2561 static int b43legacy_dev_config(struct ieee80211_hw
*hw
,
2562 struct ieee80211_conf
*conf
)
2564 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
2565 struct b43legacy_wldev
*dev
;
2566 struct b43legacy_phy
*phy
;
2567 unsigned long flags
;
2568 unsigned int new_phymode
= 0xFFFF;
2574 antenna_tx
= b43legacy_antenna_from_ieee80211(conf
->antenna_sel_tx
);
2575 antenna_rx
= b43legacy_antenna_from_ieee80211(conf
->antenna_sel_rx
);
2577 mutex_lock(&wl
->mutex
);
2579 /* Switch the PHY mode (if necessary). */
2580 switch (conf
->phymode
) {
2581 case MODE_IEEE80211B
:
2582 new_phymode
= B43legacy_PHYMODE_B
;
2584 case MODE_IEEE80211G
:
2585 new_phymode
= B43legacy_PHYMODE_G
;
2588 B43legacy_WARN_ON(1);
2590 err
= b43legacy_switch_phymode(wl
, new_phymode
);
2592 goto out_unlock_mutex
;
2593 dev
= wl
->current_dev
;
2596 /* Disable IRQs while reconfiguring the device.
2597 * This makes it possible to drop the spinlock throughout
2598 * the reconfiguration process. */
2599 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2600 if (b43legacy_status(dev
) < B43legacy_STAT_STARTED
) {
2601 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2602 goto out_unlock_mutex
;
2604 savedirqs
= b43legacy_interrupt_disable(dev
, B43legacy_IRQ_ALL
);
2605 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2606 b43legacy_synchronize_irq(dev
);
2608 /* Switch to the requested channel.
2609 * The firmware takes care of races with the TX handler. */
2610 if (conf
->channel_val
!= phy
->channel
)
2611 b43legacy_radio_selectchannel(dev
, conf
->channel_val
, 0);
2613 /* Enable/Disable ShortSlot timing. */
2614 if ((!!(conf
->flags
& IEEE80211_CONF_SHORT_SLOT_TIME
))
2615 != dev
->short_slot
) {
2616 B43legacy_WARN_ON(phy
->type
!= B43legacy_PHYTYPE_G
);
2617 if (conf
->flags
& IEEE80211_CONF_SHORT_SLOT_TIME
)
2618 b43legacy_short_slot_timing_enable(dev
);
2620 b43legacy_short_slot_timing_disable(dev
);
2623 /* Adjust the desired TX power level. */
2624 if (conf
->power_level
!= 0) {
2625 if (conf
->power_level
!= phy
->power_level
) {
2626 phy
->power_level
= conf
->power_level
;
2627 b43legacy_phy_xmitpower(dev
);
2631 /* Antennas for RX and management frame TX. */
2632 b43legacy_mgmtframe_txantenna(dev
, antenna_tx
);
2634 /* Update templates for AP mode. */
2635 if (b43legacy_is_mode(wl
, IEEE80211_IF_TYPE_AP
))
2636 b43legacy_set_beacon_int(dev
, conf
->beacon_int
);
2639 if (!!conf
->radio_enabled
!= phy
->radio_on
) {
2640 if (conf
->radio_enabled
) {
2641 b43legacy_radio_turn_on(dev
);
2642 b43legacyinfo(dev
->wl
, "Radio turned on by software\n");
2643 if (!dev
->radio_hw_enable
)
2644 b43legacyinfo(dev
->wl
, "The hardware RF-kill"
2645 " button still turns the radio"
2646 " physically off. Press the"
2647 " button to turn it on.\n");
2649 b43legacy_radio_turn_off(dev
, 0);
2650 b43legacyinfo(dev
->wl
, "Radio turned off by"
2655 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2656 b43legacy_interrupt_enable(dev
, savedirqs
);
2658 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2660 mutex_unlock(&wl
->mutex
);
2665 static int b43legacy_dev_set_key(struct ieee80211_hw
*hw
,
2666 enum set_key_cmd cmd
,
2667 const u8
*local_addr
, const u8
*addr
,
2668 struct ieee80211_key_conf
*key
)
2670 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
2671 struct b43legacy_wldev
*dev
= wl
->current_dev
;
2672 unsigned long flags
;
2673 int err
= -EOPNOTSUPP
;
2674 DECLARE_MAC_BUF(mac
);
2678 mutex_lock(&wl
->mutex
);
2679 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2681 if (b43legacy_status(dev
) < B43legacy_STAT_INITIALIZED
) {
2684 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2685 mutex_unlock(&wl
->mutex
);
2686 b43legacydbg(wl
, "Using software based encryption for "
2687 "mac: %s\n", print_mac(mac
, addr
));
2691 static void b43legacy_configure_filter(struct ieee80211_hw
*hw
,
2692 unsigned int changed
,
2693 unsigned int *fflags
,
2695 struct dev_addr_list
*mc_list
)
2697 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
2698 struct b43legacy_wldev
*dev
= wl
->current_dev
;
2699 unsigned long flags
;
2706 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2707 *fflags
&= FIF_PROMISC_IN_BSS
|
2713 FIF_BCN_PRBRESP_PROMISC
;
2715 changed
&= FIF_PROMISC_IN_BSS
|
2721 FIF_BCN_PRBRESP_PROMISC
;
2723 wl
->filter_flags
= *fflags
;
2725 if (changed
&& b43legacy_status(dev
) >= B43legacy_STAT_INITIALIZED
)
2726 b43legacy_adjust_opmode(dev
);
2727 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2730 static int b43legacy_config_interface(struct ieee80211_hw
*hw
,
2732 struct ieee80211_if_conf
*conf
)
2734 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
2735 struct b43legacy_wldev
*dev
= wl
->current_dev
;
2736 unsigned long flags
;
2740 mutex_lock(&wl
->mutex
);
2741 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2742 B43legacy_WARN_ON(wl
->if_id
!= if_id
);
2744 memcpy(wl
->bssid
, conf
->bssid
, ETH_ALEN
);
2746 memset(wl
->bssid
, 0, ETH_ALEN
);
2747 if (b43legacy_status(dev
) >= B43legacy_STAT_INITIALIZED
) {
2748 if (b43legacy_is_mode(wl
, IEEE80211_IF_TYPE_AP
)) {
2749 B43legacy_WARN_ON(conf
->type
!= IEEE80211_IF_TYPE_AP
);
2750 b43legacy_set_ssid(dev
, conf
->ssid
, conf
->ssid_len
);
2752 b43legacy_refresh_templates(dev
, conf
->beacon
);
2754 b43legacy_write_mac_bssid_templates(dev
);
2756 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2757 mutex_unlock(&wl
->mutex
);
2762 /* Locking: wl->mutex */
2763 static void b43legacy_wireless_core_stop(struct b43legacy_wldev
*dev
)
2765 struct b43legacy_wl
*wl
= dev
->wl
;
2766 unsigned long flags
;
2768 if (b43legacy_status(dev
) < B43legacy_STAT_STARTED
)
2771 /* Disable and sync interrupts. We must do this before than
2772 * setting the status to INITIALIZED, as the interrupt handler
2773 * won't care about IRQs then. */
2774 spin_lock_irqsave(&wl
->irq_lock
, flags
);
2775 dev
->irq_savedstate
= b43legacy_interrupt_disable(dev
,
2777 b43legacy_read32(dev
, B43legacy_MMIO_GEN_IRQ_MASK
); /* flush */
2778 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
2779 b43legacy_synchronize_irq(dev
);
2781 b43legacy_set_status(dev
, B43legacy_STAT_INITIALIZED
);
2783 mutex_unlock(&wl
->mutex
);
2784 /* Must unlock as it would otherwise deadlock. No races here.
2785 * Cancel the possibly running self-rearming periodic work. */
2786 cancel_delayed_work_sync(&dev
->periodic_work
);
2787 mutex_lock(&wl
->mutex
);
2789 ieee80211_stop_queues(wl
->hw
); /* FIXME this could cause a deadlock */
2791 b43legacy_mac_suspend(dev
);
2792 free_irq(dev
->dev
->irq
, dev
);
2793 b43legacydbg(wl
, "Wireless interface stopped\n");
2796 /* Locking: wl->mutex */
2797 static int b43legacy_wireless_core_start(struct b43legacy_wldev
*dev
)
2801 B43legacy_WARN_ON(b43legacy_status(dev
) != B43legacy_STAT_INITIALIZED
);
2803 drain_txstatus_queue(dev
);
2804 err
= request_irq(dev
->dev
->irq
, b43legacy_interrupt_handler
,
2805 IRQF_SHARED
, KBUILD_MODNAME
, dev
);
2807 b43legacyerr(dev
->wl
, "Cannot request IRQ-%d\n",
2811 /* We are ready to run. */
2812 b43legacy_set_status(dev
, B43legacy_STAT_STARTED
);
2814 /* Start data flow (TX/RX) */
2815 b43legacy_mac_enable(dev
);
2816 b43legacy_interrupt_enable(dev
, dev
->irq_savedstate
);
2817 ieee80211_start_queues(dev
->wl
->hw
);
2819 /* Start maintenance work */
2820 b43legacy_periodic_tasks_setup(dev
);
2822 b43legacydbg(dev
->wl
, "Wireless interface started\n");
2827 /* Get PHY and RADIO versioning numbers */
2828 static int b43legacy_phy_versioning(struct b43legacy_wldev
*dev
)
2830 struct b43legacy_phy
*phy
= &dev
->phy
;
2838 int unsupported
= 0;
2840 /* Get PHY versioning */
2841 tmp
= b43legacy_read16(dev
, B43legacy_MMIO_PHY_VER
);
2842 analog_type
= (tmp
& B43legacy_PHYVER_ANALOG
)
2843 >> B43legacy_PHYVER_ANALOG_SHIFT
;
2844 phy_type
= (tmp
& B43legacy_PHYVER_TYPE
) >> B43legacy_PHYVER_TYPE_SHIFT
;
2845 phy_rev
= (tmp
& B43legacy_PHYVER_VERSION
);
2847 case B43legacy_PHYTYPE_B
:
2848 if (phy_rev
!= 2 && phy_rev
!= 4
2849 && phy_rev
!= 6 && phy_rev
!= 7)
2852 case B43legacy_PHYTYPE_G
:
2860 b43legacyerr(dev
->wl
, "FOUND UNSUPPORTED PHY "
2861 "(Analog %u, Type %u, Revision %u)\n",
2862 analog_type
, phy_type
, phy_rev
);
2865 b43legacydbg(dev
->wl
, "Found PHY: Analog %u, Type %u, Revision %u\n",
2866 analog_type
, phy_type
, phy_rev
);
2869 /* Get RADIO versioning */
2870 if (dev
->dev
->bus
->chip_id
== 0x4317) {
2871 if (dev
->dev
->bus
->chip_rev
== 0)
2873 else if (dev
->dev
->bus
->chip_rev
== 1)
2878 b43legacy_write16(dev
, B43legacy_MMIO_RADIO_CONTROL
,
2879 B43legacy_RADIOCTL_ID
);
2880 tmp
= b43legacy_read16(dev
, B43legacy_MMIO_RADIO_DATA_HIGH
);
2882 b43legacy_write16(dev
, B43legacy_MMIO_RADIO_CONTROL
,
2883 B43legacy_RADIOCTL_ID
);
2884 tmp
|= b43legacy_read16(dev
, B43legacy_MMIO_RADIO_DATA_LOW
);
2886 radio_manuf
= (tmp
& 0x00000FFF);
2887 radio_ver
= (tmp
& 0x0FFFF000) >> 12;
2888 radio_rev
= (tmp
& 0xF0000000) >> 28;
2890 case B43legacy_PHYTYPE_B
:
2891 if ((radio_ver
& 0xFFF0) != 0x2050)
2894 case B43legacy_PHYTYPE_G
:
2895 if (radio_ver
!= 0x2050)
2899 B43legacy_BUG_ON(1);
2902 b43legacyerr(dev
->wl
, "FOUND UNSUPPORTED RADIO "
2903 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
2904 radio_manuf
, radio_ver
, radio_rev
);
2907 b43legacydbg(dev
->wl
, "Found Radio: Manuf 0x%X, Version 0x%X,"
2908 " Revision %u\n", radio_manuf
, radio_ver
, radio_rev
);
2911 phy
->radio_manuf
= radio_manuf
;
2912 phy
->radio_ver
= radio_ver
;
2913 phy
->radio_rev
= radio_rev
;
2915 phy
->analog
= analog_type
;
2916 phy
->type
= phy_type
;
2922 static void setup_struct_phy_for_init(struct b43legacy_wldev
*dev
,
2923 struct b43legacy_phy
*phy
)
2925 struct b43legacy_lopair
*lo
;
2928 memset(phy
->minlowsig
, 0xFF, sizeof(phy
->minlowsig
));
2929 memset(phy
->minlowsigpos
, 0, sizeof(phy
->minlowsigpos
));
2933 /* Assume the radio is enabled. If it's not enabled, the state will
2934 * immediately get fixed on the first periodic work run. */
2935 dev
->radio_hw_enable
= 1;
2937 phy
->savedpctlreg
= 0xFFFF;
2938 phy
->aci_enable
= 0;
2939 phy
->aci_wlan_automatic
= 0;
2940 phy
->aci_hw_rssi
= 0;
2942 lo
= phy
->_lo_pairs
;
2944 memset(lo
, 0, sizeof(struct b43legacy_lopair
) *
2945 B43legacy_LO_COUNT
);
2946 phy
->max_lb_gain
= 0;
2947 phy
->trsw_rx_gain
= 0;
2949 /* Set default attenuation values. */
2950 phy
->bbatt
= b43legacy_default_baseband_attenuation(dev
);
2951 phy
->rfatt
= b43legacy_default_radio_attenuation(dev
);
2952 phy
->txctl1
= b43legacy_default_txctl1(dev
);
2953 phy
->txpwr_offset
= 0;
2956 phy
->nrssislope
= 0;
2957 for (i
= 0; i
< ARRAY_SIZE(phy
->nrssi
); i
++)
2958 phy
->nrssi
[i
] = -1000;
2959 for (i
= 0; i
< ARRAY_SIZE(phy
->nrssi_lt
); i
++)
2960 phy
->nrssi_lt
[i
] = i
;
2962 phy
->lofcal
= 0xFFFF;
2963 phy
->initval
= 0xFFFF;
2965 spin_lock_init(&phy
->lock
);
2966 phy
->interfmode
= B43legacy_INTERFMODE_NONE
;
2967 phy
->channel
= 0xFF;
2970 static void setup_struct_wldev_for_init(struct b43legacy_wldev
*dev
)
2973 dev
->reg124_set_0x4
= 0;
2976 memset(&dev
->stats
, 0, sizeof(dev
->stats
));
2978 setup_struct_phy_for_init(dev
, &dev
->phy
);
2980 /* IRQ related flags */
2981 dev
->irq_reason
= 0;
2982 memset(dev
->dma_reason
, 0, sizeof(dev
->dma_reason
));
2983 dev
->irq_savedstate
= B43legacy_IRQ_MASKTEMPLATE
;
2985 dev
->mac_suspended
= 1;
2987 /* Noise calculation context */
2988 memset(&dev
->noisecalc
, 0, sizeof(dev
->noisecalc
));
2991 static void b43legacy_imcfglo_timeouts_workaround(struct b43legacy_wldev
*dev
)
2993 #ifdef CONFIG_SSB_DRIVER_PCICORE
2994 struct ssb_bus
*bus
= dev
->dev
->bus
;
2997 if (bus
->pcicore
.dev
&&
2998 bus
->pcicore
.dev
->id
.coreid
== SSB_DEV_PCI
&&
2999 bus
->pcicore
.dev
->id
.revision
<= 5) {
3000 /* IMCFGLO timeouts workaround. */
3001 tmp
= ssb_read32(dev
->dev
, SSB_IMCFGLO
);
3002 tmp
&= ~SSB_IMCFGLO_REQTO
;
3003 tmp
&= ~SSB_IMCFGLO_SERTO
;
3004 switch (bus
->bustype
) {
3005 case SSB_BUSTYPE_PCI
:
3006 case SSB_BUSTYPE_PCMCIA
:
3009 case SSB_BUSTYPE_SSB
:
3013 ssb_write32(dev
->dev
, SSB_IMCFGLO
, tmp
);
3015 #endif /* CONFIG_SSB_DRIVER_PCICORE */
3018 /* Shutdown a wireless core */
3019 /* Locking: wl->mutex */
3020 static void b43legacy_wireless_core_exit(struct b43legacy_wldev
*dev
)
3022 struct b43legacy_wl
*wl
= dev
->wl
;
3023 struct b43legacy_phy
*phy
= &dev
->phy
;
3025 B43legacy_WARN_ON(b43legacy_status(dev
) > B43legacy_STAT_INITIALIZED
);
3026 if (b43legacy_status(dev
) != B43legacy_STAT_INITIALIZED
)
3028 b43legacy_set_status(dev
, B43legacy_STAT_UNINIT
);
3030 mutex_unlock(&wl
->mutex
);
3031 /* Must unlock as it would otherwise deadlock. No races here.
3032 * Cancel possibly pending workqueues. */
3033 cancel_work_sync(&dev
->restart_work
);
3034 mutex_lock(&wl
->mutex
);
3036 mutex_unlock(&dev
->wl
->mutex
);
3037 b43legacy_rfkill_exit(dev
);
3038 mutex_lock(&dev
->wl
->mutex
);
3040 b43legacy_rng_exit(dev
->wl
);
3041 b43legacy_pio_free(dev
);
3042 b43legacy_dma_free(dev
);
3043 b43legacy_chip_exit(dev
);
3044 b43legacy_radio_turn_off(dev
, 1);
3045 b43legacy_switch_analog(dev
, 0);
3046 if (phy
->dyn_tssi_tbl
)
3047 kfree(phy
->tssi2dbm
);
3048 kfree(phy
->lo_control
);
3049 phy
->lo_control
= NULL
;
3050 ssb_device_disable(dev
->dev
, 0);
3051 ssb_bus_may_powerdown(dev
->dev
->bus
);
3054 static void prepare_phy_data_for_init(struct b43legacy_wldev
*dev
)
3056 struct b43legacy_phy
*phy
= &dev
->phy
;
3059 /* Set default attenuation values. */
3060 phy
->bbatt
= b43legacy_default_baseband_attenuation(dev
);
3061 phy
->rfatt
= b43legacy_default_radio_attenuation(dev
);
3062 phy
->txctl1
= b43legacy_default_txctl1(dev
);
3063 phy
->txctl2
= 0xFFFF;
3064 phy
->txpwr_offset
= 0;
3067 phy
->nrssislope
= 0;
3068 for (i
= 0; i
< ARRAY_SIZE(phy
->nrssi
); i
++)
3069 phy
->nrssi
[i
] = -1000;
3070 for (i
= 0; i
< ARRAY_SIZE(phy
->nrssi_lt
); i
++)
3071 phy
->nrssi_lt
[i
] = i
;
3073 phy
->lofcal
= 0xFFFF;
3074 phy
->initval
= 0xFFFF;
3076 phy
->aci_enable
= 0;
3077 phy
->aci_wlan_automatic
= 0;
3078 phy
->aci_hw_rssi
= 0;
3080 phy
->antenna_diversity
= 0xFFFF;
3081 memset(phy
->minlowsig
, 0xFF, sizeof(phy
->minlowsig
));
3082 memset(phy
->minlowsigpos
, 0, sizeof(phy
->minlowsigpos
));
3085 phy
->calibrated
= 0;
3089 memset(phy
->_lo_pairs
, 0,
3090 sizeof(struct b43legacy_lopair
) * B43legacy_LO_COUNT
);
3091 memset(phy
->loopback_gain
, 0, sizeof(phy
->loopback_gain
));
3094 /* Initialize a wireless core */
3095 static int b43legacy_wireless_core_init(struct b43legacy_wldev
*dev
)
3097 struct b43legacy_wl
*wl
= dev
->wl
;
3098 struct ssb_bus
*bus
= dev
->dev
->bus
;
3099 struct b43legacy_phy
*phy
= &dev
->phy
;
3100 struct ssb_sprom
*sprom
= &dev
->dev
->bus
->sprom
;
3105 B43legacy_WARN_ON(b43legacy_status(dev
) != B43legacy_STAT_UNINIT
);
3107 err
= ssb_bus_powerup(bus
, 0);
3110 if (!ssb_device_is_enabled(dev
->dev
)) {
3111 tmp
= phy
->gmode
? B43legacy_TMSLOW_GMODE
: 0;
3112 b43legacy_wireless_core_reset(dev
, tmp
);
3115 if ((phy
->type
== B43legacy_PHYTYPE_B
) ||
3116 (phy
->type
== B43legacy_PHYTYPE_G
)) {
3117 phy
->_lo_pairs
= kzalloc(sizeof(struct b43legacy_lopair
)
3118 * B43legacy_LO_COUNT
,
3120 if (!phy
->_lo_pairs
)
3123 setup_struct_wldev_for_init(dev
);
3125 err
= b43legacy_phy_init_tssi2dbm_table(dev
);
3127 goto err_kfree_lo_control
;
3129 /* Enable IRQ routing to this device. */
3130 ssb_pcicore_dev_irqvecs_enable(&bus
->pcicore
, dev
->dev
);
3132 b43legacy_imcfglo_timeouts_workaround(dev
);
3133 prepare_phy_data_for_init(dev
);
3134 b43legacy_phy_calibrate(dev
);
3135 err
= b43legacy_chip_init(dev
);
3137 goto err_kfree_tssitbl
;
3138 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
3139 B43legacy_SHM_SH_WLCOREREV
,
3140 dev
->dev
->id
.revision
);
3141 hf
= b43legacy_hf_read(dev
);
3142 if (phy
->type
== B43legacy_PHYTYPE_G
) {
3143 hf
|= B43legacy_HF_SYMW
;
3145 hf
|= B43legacy_HF_GDCW
;
3146 if (sprom
->r1
.boardflags_lo
& B43legacy_BFL_PACTRL
)
3147 hf
|= B43legacy_HF_OFDMPABOOST
;
3148 } else if (phy
->type
== B43legacy_PHYTYPE_B
) {
3149 hf
|= B43legacy_HF_SYMW
;
3150 if (phy
->rev
>= 2 && phy
->radio_ver
== 0x2050)
3151 hf
&= ~B43legacy_HF_GDCW
;
3153 b43legacy_hf_write(dev
, hf
);
3155 /* Short/Long Retry Limit.
3156 * The retry-limit is a 4-bit counter. Enforce this to avoid overflowing
3157 * the chip-internal counter.
3159 tmp
= limit_value(modparam_short_retry
, 0, 0xF);
3160 b43legacy_shm_write16(dev
, B43legacy_SHM_WIRELESS
,
3162 tmp
= limit_value(modparam_long_retry
, 0, 0xF);
3163 b43legacy_shm_write16(dev
, B43legacy_SHM_WIRELESS
,
3166 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
3168 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
3171 /* Disable sending probe responses from firmware.
3172 * Setting the MaxTime to one usec will always trigger
3173 * a timeout, so we never send any probe resp.
3174 * A timeout of zero is infinite. */
3175 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
,
3176 B43legacy_SHM_SH_PRMAXTIME
, 1);
3178 b43legacy_rate_memory_init(dev
);
3180 /* Minimum Contention Window */
3181 if (phy
->type
== B43legacy_PHYTYPE_B
)
3182 b43legacy_shm_write16(dev
, B43legacy_SHM_WIRELESS
,
3185 b43legacy_shm_write16(dev
, B43legacy_SHM_WIRELESS
,
3187 /* Maximum Contention Window */
3188 b43legacy_shm_write16(dev
, B43legacy_SHM_WIRELESS
,
3192 if (b43legacy_using_pio(dev
))
3193 err
= b43legacy_pio_init(dev
);
3195 err
= b43legacy_dma_init(dev
);
3197 b43legacy_qos_init(dev
);
3199 } while (err
== -EAGAIN
);
3203 b43legacy_write16(dev
, 0x0612, 0x0050);
3204 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, 0x0416, 0x0050);
3205 b43legacy_shm_write16(dev
, B43legacy_SHM_SHARED
, 0x0414, 0x01F4);
3207 ssb_bus_powerup(bus
, 1); /* Enable dynamic PCTL */
3208 memset(wl
->bssid
, 0, ETH_ALEN
);
3209 memset(wl
->mac_addr
, 0, ETH_ALEN
);
3210 b43legacy_upload_card_macaddress(dev
);
3211 b43legacy_security_init(dev
);
3212 b43legacy_rfkill_init(dev
);
3213 b43legacy_rng_init(wl
);
3215 b43legacy_set_status(dev
, B43legacy_STAT_INITIALIZED
);
3221 b43legacy_chip_exit(dev
);
3223 if (phy
->dyn_tssi_tbl
)
3224 kfree(phy
->tssi2dbm
);
3225 err_kfree_lo_control
:
3226 kfree(phy
->lo_control
);
3227 phy
->lo_control
= NULL
;
3228 ssb_bus_may_powerdown(bus
);
3229 B43legacy_WARN_ON(b43legacy_status(dev
) != B43legacy_STAT_UNINIT
);
3233 static int b43legacy_add_interface(struct ieee80211_hw
*hw
,
3234 struct ieee80211_if_init_conf
*conf
)
3236 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
3237 struct b43legacy_wldev
*dev
;
3238 unsigned long flags
;
3239 int err
= -EOPNOTSUPP
;
3241 /* TODO: allow WDS/AP devices to coexist */
3243 if (conf
->type
!= IEEE80211_IF_TYPE_AP
&&
3244 conf
->type
!= IEEE80211_IF_TYPE_STA
&&
3245 conf
->type
!= IEEE80211_IF_TYPE_WDS
&&
3246 conf
->type
!= IEEE80211_IF_TYPE_IBSS
)
3249 mutex_lock(&wl
->mutex
);
3251 goto out_mutex_unlock
;
3253 b43legacydbg(wl
, "Adding Interface type %d\n", conf
->type
);
3255 dev
= wl
->current_dev
;
3257 wl
->if_id
= conf
->if_id
;
3258 wl
->if_type
= conf
->type
;
3259 memcpy(wl
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
3261 spin_lock_irqsave(&wl
->irq_lock
, flags
);
3262 b43legacy_adjust_opmode(dev
);
3263 b43legacy_upload_card_macaddress(dev
);
3264 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
3268 mutex_unlock(&wl
->mutex
);
3273 static void b43legacy_remove_interface(struct ieee80211_hw
*hw
,
3274 struct ieee80211_if_init_conf
*conf
)
3276 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
3277 struct b43legacy_wldev
*dev
= wl
->current_dev
;
3278 unsigned long flags
;
3280 b43legacydbg(wl
, "Removing Interface type %d\n", conf
->type
);
3282 mutex_lock(&wl
->mutex
);
3284 B43legacy_WARN_ON(!wl
->operating
);
3285 B43legacy_WARN_ON(wl
->if_id
!= conf
->if_id
);
3289 spin_lock_irqsave(&wl
->irq_lock
, flags
);
3290 b43legacy_adjust_opmode(dev
);
3291 memset(wl
->mac_addr
, 0, ETH_ALEN
);
3292 b43legacy_upload_card_macaddress(dev
);
3293 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
3295 mutex_unlock(&wl
->mutex
);
3298 static int b43legacy_start(struct ieee80211_hw
*hw
)
3300 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
3301 struct b43legacy_wldev
*dev
= wl
->current_dev
;
3305 mutex_lock(&wl
->mutex
);
3307 if (b43legacy_status(dev
) < B43legacy_STAT_INITIALIZED
) {
3308 err
= b43legacy_wireless_core_init(dev
);
3310 goto out_mutex_unlock
;
3314 if (b43legacy_status(dev
) < B43legacy_STAT_STARTED
) {
3315 err
= b43legacy_wireless_core_start(dev
);
3318 b43legacy_wireless_core_exit(dev
);
3319 goto out_mutex_unlock
;
3324 mutex_unlock(&wl
->mutex
);
3329 static void b43legacy_stop(struct ieee80211_hw
*hw
)
3331 struct b43legacy_wl
*wl
= hw_to_b43legacy_wl(hw
);
3332 struct b43legacy_wldev
*dev
= wl
->current_dev
;
3334 mutex_lock(&wl
->mutex
);
3335 if (b43legacy_status(dev
) >= B43legacy_STAT_STARTED
)
3336 b43legacy_wireless_core_stop(dev
);
3337 b43legacy_wireless_core_exit(dev
);
3338 mutex_unlock(&wl
->mutex
);
3342 static const struct ieee80211_ops b43legacy_hw_ops
= {
3344 .conf_tx
= b43legacy_conf_tx
,
3345 .add_interface
= b43legacy_add_interface
,
3346 .remove_interface
= b43legacy_remove_interface
,
3347 .config
= b43legacy_dev_config
,
3348 .config_interface
= b43legacy_config_interface
,
3349 .set_key
= b43legacy_dev_set_key
,
3350 .configure_filter
= b43legacy_configure_filter
,
3351 .get_stats
= b43legacy_get_stats
,
3352 .get_tx_stats
= b43legacy_get_tx_stats
,
3353 .start
= b43legacy_start
,
3354 .stop
= b43legacy_stop
,
3357 /* Hard-reset the chip. Do not call this directly.
3358 * Use b43legacy_controller_restart()
3360 static void b43legacy_chip_reset(struct work_struct
*work
)
3362 struct b43legacy_wldev
*dev
=
3363 container_of(work
, struct b43legacy_wldev
, restart_work
);
3364 struct b43legacy_wl
*wl
= dev
->wl
;
3368 mutex_lock(&wl
->mutex
);
3370 prev_status
= b43legacy_status(dev
);
3371 /* Bring the device down... */
3372 if (prev_status
>= B43legacy_STAT_STARTED
)
3373 b43legacy_wireless_core_stop(dev
);
3374 if (prev_status
>= B43legacy_STAT_INITIALIZED
)
3375 b43legacy_wireless_core_exit(dev
);
3377 /* ...and up again. */
3378 if (prev_status
>= B43legacy_STAT_INITIALIZED
) {
3379 err
= b43legacy_wireless_core_init(dev
);
3383 if (prev_status
>= B43legacy_STAT_STARTED
) {
3384 err
= b43legacy_wireless_core_start(dev
);
3386 b43legacy_wireless_core_exit(dev
);
3391 mutex_unlock(&wl
->mutex
);
3393 b43legacyerr(wl
, "Controller restart FAILED\n");
3395 b43legacyinfo(wl
, "Controller restarted\n");
3398 static int b43legacy_setup_modes(struct b43legacy_wldev
*dev
,
3402 struct ieee80211_hw
*hw
= dev
->wl
->hw
;
3403 struct ieee80211_hw_mode
*mode
;
3404 struct b43legacy_phy
*phy
= &dev
->phy
;
3408 phy
->possible_phymodes
= 0;
3411 B43legacy_WARN_ON(cnt
>= B43legacy_MAX_PHYHWMODES
);
3412 mode
= &phy
->hwmodes
[cnt
];
3414 mode
->mode
= MODE_IEEE80211B
;
3415 mode
->num_channels
= b43legacy_bg_chantable_size
;
3416 mode
->channels
= b43legacy_bg_chantable
;
3417 mode
->num_rates
= b43legacy_b_ratetable_size
;
3418 mode
->rates
= b43legacy_b_ratetable
;
3419 err
= ieee80211_register_hwmode(hw
, mode
);
3423 phy
->possible_phymodes
|= B43legacy_PHYMODE_B
;
3428 B43legacy_WARN_ON(cnt
>= B43legacy_MAX_PHYHWMODES
);
3429 mode
= &phy
->hwmodes
[cnt
];
3431 mode
->mode
= MODE_IEEE80211G
;
3432 mode
->num_channels
= b43legacy_bg_chantable_size
;
3433 mode
->channels
= b43legacy_bg_chantable
;
3434 mode
->num_rates
= b43legacy_g_ratetable_size
;
3435 mode
->rates
= b43legacy_g_ratetable
;
3436 err
= ieee80211_register_hwmode(hw
, mode
);
3440 phy
->possible_phymodes
|= B43legacy_PHYMODE_G
;
3450 static void b43legacy_wireless_core_detach(struct b43legacy_wldev
*dev
)
3452 /* We release firmware that late to not be required to re-request
3453 * is all the time when we reinit the core. */
3454 b43legacy_release_firmware(dev
);
3457 static int b43legacy_wireless_core_attach(struct b43legacy_wldev
*dev
)
3459 struct b43legacy_wl
*wl
= dev
->wl
;
3460 struct ssb_bus
*bus
= dev
->dev
->bus
;
3461 struct pci_dev
*pdev
= bus
->host_pci
;
3467 /* Do NOT do any device initialization here.
3468 * Do it in wireless_core_init() instead.
3469 * This function is for gathering basic information about the HW, only.
3470 * Also some structs may be set up here. But most likely you want to
3471 * have that in core_init(), too.
3474 err
= ssb_bus_powerup(bus
, 0);
3476 b43legacyerr(wl
, "Bus powerup failed\n");
3479 /* Get the PHY type. */
3480 if (dev
->dev
->id
.revision
>= 5) {
3483 tmshigh
= ssb_read32(dev
->dev
, SSB_TMSHIGH
);
3484 have_gphy
= !!(tmshigh
& B43legacy_TMSHIGH_GPHY
);
3487 } else if (dev
->dev
->id
.revision
== 4)
3492 dev
->phy
.gmode
= (have_gphy
|| have_bphy
);
3493 tmp
= dev
->phy
.gmode
? B43legacy_TMSLOW_GMODE
: 0;
3494 b43legacy_wireless_core_reset(dev
, tmp
);
3496 err
= b43legacy_phy_versioning(dev
);
3499 /* Check if this device supports multiband. */
3501 (pdev
->device
!= 0x4312 &&
3502 pdev
->device
!= 0x4319 &&
3503 pdev
->device
!= 0x4324)) {
3504 /* No multiband support. */
3507 switch (dev
->phy
.type
) {
3508 case B43legacy_PHYTYPE_B
:
3511 case B43legacy_PHYTYPE_G
:
3515 B43legacy_BUG_ON(1);
3518 dev
->phy
.gmode
= (have_gphy
|| have_bphy
);
3519 tmp
= dev
->phy
.gmode
? B43legacy_TMSLOW_GMODE
: 0;
3520 b43legacy_wireless_core_reset(dev
, tmp
);
3522 err
= b43legacy_validate_chipaccess(dev
);
3525 err
= b43legacy_setup_modes(dev
, have_bphy
, have_gphy
);
3529 /* Now set some default "current_dev" */
3530 if (!wl
->current_dev
)
3531 wl
->current_dev
= dev
;
3532 INIT_WORK(&dev
->restart_work
, b43legacy_chip_reset
);
3534 b43legacy_radio_turn_off(dev
, 1);
3535 b43legacy_switch_analog(dev
, 0);
3536 ssb_device_disable(dev
->dev
, 0);
3537 ssb_bus_may_powerdown(bus
);
3543 ssb_bus_may_powerdown(bus
);
3547 static void b43legacy_one_core_detach(struct ssb_device
*dev
)
3549 struct b43legacy_wldev
*wldev
;
3550 struct b43legacy_wl
*wl
;
3552 wldev
= ssb_get_drvdata(dev
);
3554 cancel_work_sync(&wldev
->restart_work
);
3555 b43legacy_debugfs_remove_device(wldev
);
3556 b43legacy_wireless_core_detach(wldev
);
3557 list_del(&wldev
->list
);
3559 ssb_set_drvdata(dev
, NULL
);
3563 static int b43legacy_one_core_attach(struct ssb_device
*dev
,
3564 struct b43legacy_wl
*wl
)
3566 struct b43legacy_wldev
*wldev
;
3567 struct pci_dev
*pdev
;
3570 if (!list_empty(&wl
->devlist
)) {
3571 /* We are not the first core on this chip. */
3572 pdev
= dev
->bus
->host_pci
;
3573 /* Only special chips support more than one wireless
3574 * core, although some of the other chips have more than
3575 * one wireless core as well. Check for this and
3579 ((pdev
->device
!= 0x4321) &&
3580 (pdev
->device
!= 0x4313) &&
3581 (pdev
->device
!= 0x431A))) {
3582 b43legacydbg(wl
, "Ignoring unconnected 802.11 core\n");
3587 wldev
= kzalloc(sizeof(*wldev
), GFP_KERNEL
);
3593 b43legacy_set_status(wldev
, B43legacy_STAT_UNINIT
);
3594 wldev
->bad_frames_preempt
= modparam_bad_frames_preempt
;
3595 tasklet_init(&wldev
->isr_tasklet
,
3596 (void (*)(unsigned long))b43legacy_interrupt_tasklet
,
3597 (unsigned long)wldev
);
3599 wldev
->__using_pio
= 1;
3600 INIT_LIST_HEAD(&wldev
->list
);
3602 err
= b43legacy_wireless_core_attach(wldev
);
3604 goto err_kfree_wldev
;
3606 list_add(&wldev
->list
, &wl
->devlist
);
3608 ssb_set_drvdata(dev
, wldev
);
3609 b43legacy_debugfs_add_device(wldev
);
3618 static void b43legacy_sprom_fixup(struct ssb_bus
*bus
)
3620 /* boardflags workarounds */
3621 if (bus
->boardinfo
.vendor
== PCI_VENDOR_ID_APPLE
&&
3622 bus
->boardinfo
.type
== 0x4E &&
3623 bus
->boardinfo
.rev
> 0x40)
3624 bus
->sprom
.r1
.boardflags_lo
|= B43legacy_BFL_PACTRL
;
3626 /* Convert Antennagain values to Q5.2 */
3627 if (bus
->sprom
.r1
.antenna_gain_bg
== 0xFF)
3628 bus
->sprom
.r1
.antenna_gain_bg
= 2; /* if unset, use 2 dBm */
3629 bus
->sprom
.r1
.antenna_gain_bg
<<= 2;
3632 static void b43legacy_wireless_exit(struct ssb_device
*dev
,
3633 struct b43legacy_wl
*wl
)
3635 struct ieee80211_hw
*hw
= wl
->hw
;
3637 ssb_set_devtypedata(dev
, NULL
);
3638 ieee80211_free_hw(hw
);
3641 static int b43legacy_wireless_init(struct ssb_device
*dev
)
3643 struct ssb_sprom
*sprom
= &dev
->bus
->sprom
;
3644 struct ieee80211_hw
*hw
;
3645 struct b43legacy_wl
*wl
;
3648 b43legacy_sprom_fixup(dev
->bus
);
3650 hw
= ieee80211_alloc_hw(sizeof(*wl
), &b43legacy_hw_ops
);
3652 b43legacyerr(NULL
, "Could not allocate ieee80211 device\n");
3657 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
|
3658 IEEE80211_HW_RX_INCLUDES_FCS
;
3659 hw
->max_signal
= 100;
3660 hw
->max_rssi
= -110;
3661 hw
->max_noise
= -110;
3662 hw
->queues
= 1; /* FIXME: hardware has more queues */
3663 SET_IEEE80211_DEV(hw
, dev
->dev
);
3664 if (is_valid_ether_addr(sprom
->r1
.et1mac
))
3665 SET_IEEE80211_PERM_ADDR(hw
, sprom
->r1
.et1mac
);
3667 SET_IEEE80211_PERM_ADDR(hw
, sprom
->r1
.il0mac
);
3669 /* Get and initialize struct b43legacy_wl */
3670 wl
= hw_to_b43legacy_wl(hw
);
3671 memset(wl
, 0, sizeof(*wl
));
3673 spin_lock_init(&wl
->irq_lock
);
3674 spin_lock_init(&wl
->leds_lock
);
3675 mutex_init(&wl
->mutex
);
3676 INIT_LIST_HEAD(&wl
->devlist
);
3678 ssb_set_devtypedata(dev
, wl
);
3679 b43legacyinfo(wl
, "Broadcom %04X WLAN found\n", dev
->bus
->chip_id
);
3685 static int b43legacy_probe(struct ssb_device
*dev
,
3686 const struct ssb_device_id
*id
)
3688 struct b43legacy_wl
*wl
;
3692 wl
= ssb_get_devtypedata(dev
);
3694 /* Probing the first core - setup common struct b43legacy_wl */
3696 err
= b43legacy_wireless_init(dev
);
3699 wl
= ssb_get_devtypedata(dev
);
3700 B43legacy_WARN_ON(!wl
);
3702 err
= b43legacy_one_core_attach(dev
, wl
);
3704 goto err_wireless_exit
;
3707 err
= ieee80211_register_hw(wl
->hw
);
3709 goto err_one_core_detach
;
3715 err_one_core_detach
:
3716 b43legacy_one_core_detach(dev
);
3719 b43legacy_wireless_exit(dev
, wl
);
3723 static void b43legacy_remove(struct ssb_device
*dev
)
3725 struct b43legacy_wl
*wl
= ssb_get_devtypedata(dev
);
3726 struct b43legacy_wldev
*wldev
= ssb_get_drvdata(dev
);
3728 B43legacy_WARN_ON(!wl
);
3729 if (wl
->current_dev
== wldev
)
3730 ieee80211_unregister_hw(wl
->hw
);
3732 b43legacy_one_core_detach(dev
);
3734 if (list_empty(&wl
->devlist
))
3735 /* Last core on the chip unregistered.
3736 * We can destroy common struct b43legacy_wl.
3738 b43legacy_wireless_exit(dev
, wl
);
3741 /* Perform a hardware reset. This can be called from any context. */
3742 void b43legacy_controller_restart(struct b43legacy_wldev
*dev
,
3745 /* Must avoid requeueing, if we are in shutdown. */
3746 if (b43legacy_status(dev
) < B43legacy_STAT_INITIALIZED
)
3748 b43legacyinfo(dev
->wl
, "Controller RESET (%s) ...\n", reason
);
3749 queue_work(dev
->wl
->hw
->workqueue
, &dev
->restart_work
);
3754 static int b43legacy_suspend(struct ssb_device
*dev
, pm_message_t state
)
3756 struct b43legacy_wldev
*wldev
= ssb_get_drvdata(dev
);
3757 struct b43legacy_wl
*wl
= wldev
->wl
;
3759 b43legacydbg(wl
, "Suspending...\n");
3761 mutex_lock(&wl
->mutex
);
3762 wldev
->suspend_init_status
= b43legacy_status(wldev
);
3763 if (wldev
->suspend_init_status
>= B43legacy_STAT_STARTED
)
3764 b43legacy_wireless_core_stop(wldev
);
3765 if (wldev
->suspend_init_status
>= B43legacy_STAT_INITIALIZED
)
3766 b43legacy_wireless_core_exit(wldev
);
3767 mutex_unlock(&wl
->mutex
);
3769 b43legacydbg(wl
, "Device suspended.\n");
3774 static int b43legacy_resume(struct ssb_device
*dev
)
3776 struct b43legacy_wldev
*wldev
= ssb_get_drvdata(dev
);
3777 struct b43legacy_wl
*wl
= wldev
->wl
;
3780 b43legacydbg(wl
, "Resuming...\n");
3782 mutex_lock(&wl
->mutex
);
3783 if (wldev
->suspend_init_status
>= B43legacy_STAT_INITIALIZED
) {
3784 err
= b43legacy_wireless_core_init(wldev
);
3786 b43legacyerr(wl
, "Resume failed at core init\n");
3790 if (wldev
->suspend_init_status
>= B43legacy_STAT_STARTED
) {
3791 err
= b43legacy_wireless_core_start(wldev
);
3793 b43legacy_wireless_core_exit(wldev
);
3794 b43legacyerr(wl
, "Resume failed at core start\n");
3798 mutex_unlock(&wl
->mutex
);
3800 b43legacydbg(wl
, "Device resumed.\n");
3805 #else /* CONFIG_PM */
3806 # define b43legacy_suspend NULL
3807 # define b43legacy_resume NULL
3808 #endif /* CONFIG_PM */
3810 static struct ssb_driver b43legacy_ssb_driver
= {
3811 .name
= KBUILD_MODNAME
,
3812 .id_table
= b43legacy_ssb_tbl
,
3813 .probe
= b43legacy_probe
,
3814 .remove
= b43legacy_remove
,
3815 .suspend
= b43legacy_suspend
,
3816 .resume
= b43legacy_resume
,
3819 static int __init
b43legacy_init(void)
3823 b43legacy_debugfs_init();
3825 err
= ssb_driver_register(&b43legacy_ssb_driver
);
3832 b43legacy_debugfs_exit();
3836 static void __exit
b43legacy_exit(void)
3838 ssb_driver_unregister(&b43legacy_ssb_driver
);
3839 b43legacy_debugfs_exit();
3842 module_init(b43legacy_init
)
3843 module_exit(b43legacy_exit
)