2 * Common code for mac80211 Prism54 drivers
4 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
5 * Copyright (c) 2007, Christian Lamparter <chunkeey@web.de>
6 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
9 * - the islsm (softmac prism54) driver, which is:
10 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
12 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
19 #include <linux/init.h>
20 #include <linux/firmware.h>
21 #include <linux/etherdevice.h>
23 #include <net/mac80211.h>
26 #include "p54common.h"
28 static int modparam_nohwcrypt
;
29 module_param_named(nohwcrypt
, modparam_nohwcrypt
, bool, S_IRUGO
);
30 MODULE_PARM_DESC(nohwcrypt
, "Disable hardware encryption.");
31 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
32 MODULE_DESCRIPTION("Softmac Prism54 common code");
33 MODULE_LICENSE("GPL");
34 MODULE_ALIAS("prism54common");
36 static struct ieee80211_rate p54_bgrates
[] = {
37 { .bitrate
= 10, .hw_value
= 0, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
38 { .bitrate
= 20, .hw_value
= 1, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
39 { .bitrate
= 55, .hw_value
= 2, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
40 { .bitrate
= 110, .hw_value
= 3, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
41 { .bitrate
= 60, .hw_value
= 4, },
42 { .bitrate
= 90, .hw_value
= 5, },
43 { .bitrate
= 120, .hw_value
= 6, },
44 { .bitrate
= 180, .hw_value
= 7, },
45 { .bitrate
= 240, .hw_value
= 8, },
46 { .bitrate
= 360, .hw_value
= 9, },
47 { .bitrate
= 480, .hw_value
= 10, },
48 { .bitrate
= 540, .hw_value
= 11, },
51 static struct ieee80211_channel p54_bgchannels
[] = {
52 { .center_freq
= 2412, .hw_value
= 1, },
53 { .center_freq
= 2417, .hw_value
= 2, },
54 { .center_freq
= 2422, .hw_value
= 3, },
55 { .center_freq
= 2427, .hw_value
= 4, },
56 { .center_freq
= 2432, .hw_value
= 5, },
57 { .center_freq
= 2437, .hw_value
= 6, },
58 { .center_freq
= 2442, .hw_value
= 7, },
59 { .center_freq
= 2447, .hw_value
= 8, },
60 { .center_freq
= 2452, .hw_value
= 9, },
61 { .center_freq
= 2457, .hw_value
= 10, },
62 { .center_freq
= 2462, .hw_value
= 11, },
63 { .center_freq
= 2467, .hw_value
= 12, },
64 { .center_freq
= 2472, .hw_value
= 13, },
65 { .center_freq
= 2484, .hw_value
= 14, },
68 static struct ieee80211_supported_band band_2GHz
= {
69 .channels
= p54_bgchannels
,
70 .n_channels
= ARRAY_SIZE(p54_bgchannels
),
71 .bitrates
= p54_bgrates
,
72 .n_bitrates
= ARRAY_SIZE(p54_bgrates
),
75 static struct ieee80211_rate p54_arates
[] = {
76 { .bitrate
= 60, .hw_value
= 4, },
77 { .bitrate
= 90, .hw_value
= 5, },
78 { .bitrate
= 120, .hw_value
= 6, },
79 { .bitrate
= 180, .hw_value
= 7, },
80 { .bitrate
= 240, .hw_value
= 8, },
81 { .bitrate
= 360, .hw_value
= 9, },
82 { .bitrate
= 480, .hw_value
= 10, },
83 { .bitrate
= 540, .hw_value
= 11, },
86 static struct ieee80211_channel p54_achannels
[] = {
87 { .center_freq
= 4920 },
88 { .center_freq
= 4940 },
89 { .center_freq
= 4960 },
90 { .center_freq
= 4980 },
91 { .center_freq
= 5040 },
92 { .center_freq
= 5060 },
93 { .center_freq
= 5080 },
94 { .center_freq
= 5170 },
95 { .center_freq
= 5180 },
96 { .center_freq
= 5190 },
97 { .center_freq
= 5200 },
98 { .center_freq
= 5210 },
99 { .center_freq
= 5220 },
100 { .center_freq
= 5230 },
101 { .center_freq
= 5240 },
102 { .center_freq
= 5260 },
103 { .center_freq
= 5280 },
104 { .center_freq
= 5300 },
105 { .center_freq
= 5320 },
106 { .center_freq
= 5500 },
107 { .center_freq
= 5520 },
108 { .center_freq
= 5540 },
109 { .center_freq
= 5560 },
110 { .center_freq
= 5580 },
111 { .center_freq
= 5600 },
112 { .center_freq
= 5620 },
113 { .center_freq
= 5640 },
114 { .center_freq
= 5660 },
115 { .center_freq
= 5680 },
116 { .center_freq
= 5700 },
117 { .center_freq
= 5745 },
118 { .center_freq
= 5765 },
119 { .center_freq
= 5785 },
120 { .center_freq
= 5805 },
121 { .center_freq
= 5825 },
124 static struct ieee80211_supported_band band_5GHz
= {
125 .channels
= p54_achannels
,
126 .n_channels
= ARRAY_SIZE(p54_achannels
),
127 .bitrates
= p54_arates
,
128 .n_bitrates
= ARRAY_SIZE(p54_arates
),
131 int p54_parse_firmware(struct ieee80211_hw
*dev
, const struct firmware
*fw
)
133 struct p54_common
*priv
= dev
->priv
;
134 struct bootrec_exp_if
*exp_if
;
135 struct bootrec
*bootrec
;
136 u32
*data
= (u32
*)fw
->data
;
137 u32
*end_data
= (u32
*)fw
->data
+ (fw
->size
>> 2);
138 u8
*fw_version
= NULL
;
146 while (data
< end_data
&& *data
)
149 while (data
< end_data
&& !*data
)
152 bootrec
= (struct bootrec
*) data
;
154 while (bootrec
->data
<= end_data
&&
155 (bootrec
->data
+ (len
= le32_to_cpu(bootrec
->len
))) <= end_data
) {
156 u32 code
= le32_to_cpu(bootrec
->code
);
158 case BR_CODE_COMPONENT_ID
:
159 priv
->fw_interface
= be32_to_cpup((__be32
*)
161 switch (priv
->fw_interface
) {
165 char *iftype
= (char *)bootrec
->data
;
166 printk(KERN_INFO
"%s: p54 detected a LM%c%c "
168 wiphy_name(dev
->wiphy
),
169 iftype
[2], iftype
[3]);
174 printk(KERN_ERR
"%s: unsupported firmware\n",
175 wiphy_name(dev
->wiphy
));
179 case BR_CODE_COMPONENT_VERSION
:
180 /* 24 bytes should be enough for all firmwares */
181 if (strnlen((unsigned char*)bootrec
->data
, 24) < 24)
182 fw_version
= (unsigned char*)bootrec
->data
;
184 case BR_CODE_DESCR
: {
185 struct bootrec_desc
*desc
=
186 (struct bootrec_desc
*)bootrec
->data
;
187 priv
->rx_start
= le32_to_cpu(desc
->rx_start
);
188 /* FIXME add sanity checking */
189 priv
->rx_end
= le32_to_cpu(desc
->rx_end
) - 0x3500;
190 priv
->headroom
= desc
->headroom
;
191 priv
->tailroom
= desc
->tailroom
;
192 priv
->privacy_caps
= desc
->privacy_caps
;
193 priv
->rx_keycache_size
= desc
->rx_keycache_size
;
194 if (le32_to_cpu(bootrec
->len
) == 11)
195 priv
->rx_mtu
= le16_to_cpu(desc
->rx_mtu
);
197 priv
->rx_mtu
= (size_t)
198 0x620 - priv
->tx_hdr_len
;
199 maxlen
= priv
->tx_hdr_len
+ /* USB devices */
200 sizeof(struct p54_rx_data
) +
201 4 + /* rx alignment */
202 IEEE80211_MAX_FRAG_THRESHOLD
;
203 if (priv
->rx_mtu
> maxlen
&& PAGE_SIZE
== 4096) {
204 printk(KERN_INFO
"p54: rx_mtu reduced from %d "
205 "to %d\n", priv
->rx_mtu
,
207 priv
->rx_mtu
= maxlen
;
211 case BR_CODE_EXPOSED_IF
:
212 exp_if
= (struct bootrec_exp_if
*) bootrec
->data
;
213 for (i
= 0; i
< (len
* sizeof(*exp_if
) / 4); i
++)
214 if (exp_if
[i
].if_id
== cpu_to_le16(0x1a))
215 priv
->fw_var
= le16_to_cpu(exp_if
[i
].variant
);
217 case BR_CODE_DEPENDENT_IF
:
219 case BR_CODE_END_OF_BRA
:
220 case LEGACY_BR_CODE_END_OF_BRA
:
226 bootrec
= (struct bootrec
*)&bootrec
->data
[len
];
230 printk(KERN_INFO
"%s: FW rev %s - Softmac protocol %x.%x\n",
231 wiphy_name(dev
->wiphy
), fw_version
,
232 priv
->fw_var
>> 8, priv
->fw_var
& 0xff);
234 if (priv
->fw_var
< 0x500)
235 printk(KERN_INFO
"%s: you are using an obsolete firmware. "
236 "visit http://wireless.kernel.org/en/users/Drivers/p54 "
237 "and grab one for \"kernel >= 2.6.28\"!\n",
238 wiphy_name(dev
->wiphy
));
240 if (priv
->fw_var
>= 0x300) {
241 /* Firmware supports QoS, use it! */
242 priv
->tx_stats
[P54_QUEUE_AC_VO
].limit
= 3;
243 priv
->tx_stats
[P54_QUEUE_AC_VI
].limit
= 4;
244 priv
->tx_stats
[P54_QUEUE_AC_BE
].limit
= 3;
245 priv
->tx_stats
[P54_QUEUE_AC_BK
].limit
= 2;
246 dev
->queues
= P54_QUEUE_AC_NUM
;
249 if (!modparam_nohwcrypt
)
250 printk(KERN_INFO
"%s: cryptographic accelerator "
251 "WEP:%s, TKIP:%s, CCMP:%s\n",
252 wiphy_name(dev
->wiphy
),
253 (priv
->privacy_caps
& BR_DESC_PRIV_CAP_WEP
) ? "YES" :
254 "no", (priv
->privacy_caps
& (BR_DESC_PRIV_CAP_TKIP
|
255 BR_DESC_PRIV_CAP_MICHAEL
)) ? "YES" : "no",
256 (priv
->privacy_caps
& BR_DESC_PRIV_CAP_AESCCMP
) ?
261 EXPORT_SYMBOL_GPL(p54_parse_firmware
);
263 static int p54_convert_rev0(struct ieee80211_hw
*dev
,
264 struct pda_pa_curve_data
*curve_data
)
266 struct p54_common
*priv
= dev
->priv
;
267 struct p54_pa_curve_data_sample
*dst
;
268 struct pda_pa_curve_data_sample_rev0
*src
;
269 size_t cd_len
= sizeof(*curve_data
) +
270 (curve_data
->points_per_channel
*sizeof(*dst
) + 2) *
271 curve_data
->channels
;
273 void *source
, *target
;
275 priv
->curve_data
= kmalloc(sizeof(*priv
->curve_data
) + cd_len
,
277 if (!priv
->curve_data
)
280 priv
->curve_data
->entries
= curve_data
->channels
;
281 priv
->curve_data
->entry_size
= sizeof(__le16
) +
282 sizeof(*dst
) * curve_data
->points_per_channel
;
283 priv
->curve_data
->offset
= offsetof(struct pda_pa_curve_data
, data
);
284 priv
->curve_data
->len
= cd_len
;
285 memcpy(priv
->curve_data
->data
, curve_data
, sizeof(*curve_data
));
286 source
= curve_data
->data
;
287 target
= ((struct pda_pa_curve_data
*) priv
->curve_data
->data
)->data
;
288 for (i
= 0; i
< curve_data
->channels
; i
++) {
289 __le16
*freq
= source
;
290 source
+= sizeof(__le16
);
291 *((__le16
*)target
) = *freq
;
292 target
+= sizeof(__le16
);
293 for (j
= 0; j
< curve_data
->points_per_channel
; j
++) {
297 dst
->rf_power
= src
->rf_power
;
298 dst
->pa_detector
= src
->pa_detector
;
299 dst
->data_64qam
= src
->pcv
;
300 /* "invent" the points for the other modulations */
301 #define SUB(x,y) (u8)((x) - (y)) > (x) ? 0 : (x) - (y)
302 dst
->data_16qam
= SUB(src
->pcv
, 12);
303 dst
->data_qpsk
= SUB(dst
->data_16qam
, 12);
304 dst
->data_bpsk
= SUB(dst
->data_qpsk
, 12);
305 dst
->data_barker
= SUB(dst
->data_bpsk
, 14);
307 target
+= sizeof(*dst
);
308 source
+= sizeof(*src
);
315 static int p54_convert_rev1(struct ieee80211_hw
*dev
,
316 struct pda_pa_curve_data
*curve_data
)
318 struct p54_common
*priv
= dev
->priv
;
319 struct p54_pa_curve_data_sample
*dst
;
320 struct pda_pa_curve_data_sample_rev1
*src
;
321 size_t cd_len
= sizeof(*curve_data
) +
322 (curve_data
->points_per_channel
*sizeof(*dst
) + 2) *
323 curve_data
->channels
;
325 void *source
, *target
;
327 priv
->curve_data
= kzalloc(cd_len
+ sizeof(*priv
->curve_data
),
329 if (!priv
->curve_data
)
332 priv
->curve_data
->entries
= curve_data
->channels
;
333 priv
->curve_data
->entry_size
= sizeof(__le16
) +
334 sizeof(*dst
) * curve_data
->points_per_channel
;
335 priv
->curve_data
->offset
= offsetof(struct pda_pa_curve_data
, data
);
336 priv
->curve_data
->len
= cd_len
;
337 memcpy(priv
->curve_data
->data
, curve_data
, sizeof(*curve_data
));
338 source
= curve_data
->data
;
339 target
= ((struct pda_pa_curve_data
*) priv
->curve_data
->data
)->data
;
340 for (i
= 0; i
< curve_data
->channels
; i
++) {
341 __le16
*freq
= source
;
342 source
+= sizeof(__le16
);
343 *((__le16
*)target
) = *freq
;
344 target
+= sizeof(__le16
);
345 for (j
= 0; j
< curve_data
->points_per_channel
; j
++) {
346 memcpy(target
, source
, sizeof(*src
));
348 target
+= sizeof(*dst
);
349 source
+= sizeof(*src
);
357 static const char *p54_rf_chips
[] = { "NULL", "Duette3", "Duette2",
358 "Frisbee", "Xbow", "Longbow", "NULL", "NULL" };
359 static int p54_init_xbow_synth(struct ieee80211_hw
*dev
);
361 static void p54_parse_rssical(struct ieee80211_hw
*dev
, void *data
, int len
,
364 struct p54_common
*priv
= dev
->priv
;
365 int offset
= (type
== PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED
) ? 2 : 0;
366 int entry_size
= sizeof(struct pda_rssi_cal_entry
) + offset
;
367 int num_entries
= (type
== PDR_RSSI_LINEAR_APPROXIMATION
) ? 1 : 2;
370 if (len
!= (entry_size
* num_entries
)) {
371 printk(KERN_ERR
"%s: unknown rssi calibration data packing "
372 " type:(%x) len:%d.\n",
373 wiphy_name(dev
->wiphy
), type
, len
);
375 print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE
,
378 printk(KERN_ERR
"%s: please report this issue.\n",
379 wiphy_name(dev
->wiphy
));
383 for (i
= 0; i
< num_entries
; i
++) {
384 struct pda_rssi_cal_entry
*cal
= data
+
385 (offset
+ i
* entry_size
);
386 priv
->rssical_db
[i
].mul
= (s16
) le16_to_cpu(cal
->mul
);
387 priv
->rssical_db
[i
].add
= (s16
) le16_to_cpu(cal
->add
);
391 static void p54_parse_default_country(struct ieee80211_hw
*dev
,
394 struct pda_country
*country
;
396 if (len
!= sizeof(*country
)) {
397 printk(KERN_ERR
"%s: found possible invalid default country "
398 "eeprom entry. (entry size: %d)\n",
399 wiphy_name(dev
->wiphy
), len
);
401 print_hex_dump_bytes("country:", DUMP_PREFIX_NONE
,
404 printk(KERN_ERR
"%s: please report this issue.\n",
405 wiphy_name(dev
->wiphy
));
409 country
= (struct pda_country
*) data
;
410 if (country
->flags
== PDR_COUNTRY_CERT_CODE_PSEUDO
)
411 regulatory_hint(dev
->wiphy
, country
->alpha2
);
414 * write a shared/common function that converts
415 * "Regulatory domain codes" (802.11-2007 14.8.2.2)
416 * into ISO/IEC 3166-1 alpha2 for regulatory_hint.
421 static int p54_convert_output_limits(struct ieee80211_hw
*dev
,
422 u8
*data
, size_t len
)
424 struct p54_common
*priv
= dev
->priv
;
430 printk(KERN_ERR
"%s: unknown output power db revision:%x\n",
431 wiphy_name(dev
->wiphy
), data
[0]);
435 if (2 + data
[1] * sizeof(struct pda_channel_output_limit
) > len
)
438 priv
->output_limit
= kmalloc(data
[1] *
439 sizeof(struct pda_channel_output_limit
) +
440 sizeof(*priv
->output_limit
), GFP_KERNEL
);
442 if (!priv
->output_limit
)
445 priv
->output_limit
->offset
= 0;
446 priv
->output_limit
->entries
= data
[1];
447 priv
->output_limit
->entry_size
=
448 sizeof(struct pda_channel_output_limit
);
449 priv
->output_limit
->len
= priv
->output_limit
->entry_size
*
450 priv
->output_limit
->entries
+
451 priv
->output_limit
->offset
;
453 memcpy(priv
->output_limit
->data
, &data
[2],
454 data
[1] * sizeof(struct pda_channel_output_limit
));
459 static struct p54_cal_database
*p54_convert_db(struct pda_custom_wrapper
*src
,
462 struct p54_cal_database
*dst
;
463 size_t payload_len
, entries
, entry_size
, offset
;
465 payload_len
= le16_to_cpu(src
->len
);
466 entries
= le16_to_cpu(src
->entries
);
467 entry_size
= le16_to_cpu(src
->entry_size
);
468 offset
= le16_to_cpu(src
->offset
);
469 if (((entries
* entry_size
+ offset
) != payload_len
) ||
470 (payload_len
+ sizeof(*src
) != total_len
))
473 dst
= kmalloc(sizeof(*dst
) + payload_len
, GFP_KERNEL
);
477 dst
->entries
= entries
;
478 dst
->entry_size
= entry_size
;
479 dst
->offset
= offset
;
480 dst
->len
= payload_len
;
482 memcpy(dst
->data
, src
->data
, payload_len
);
486 int p54_parse_eeprom(struct ieee80211_hw
*dev
, void *eeprom
, int len
)
488 struct p54_common
*priv
= dev
->priv
;
489 struct eeprom_pda_wrap
*wrap
= NULL
;
490 struct pda_entry
*entry
;
491 unsigned int data_len
, entry_len
;
494 u8
*end
= (u8
*)eeprom
+ len
;
497 wrap
= (struct eeprom_pda_wrap
*) eeprom
;
498 entry
= (void *)wrap
->data
+ le16_to_cpu(wrap
->len
);
500 /* verify that at least the entry length/code fits */
501 while ((u8
*)entry
<= end
- sizeof(*entry
)) {
502 entry_len
= le16_to_cpu(entry
->len
);
503 data_len
= ((entry_len
- 1) << 1);
505 /* abort if entry exceeds whole structure */
506 if ((u8
*)entry
+ sizeof(*entry
) + data_len
> end
)
509 switch (le16_to_cpu(entry
->code
)) {
510 case PDR_MAC_ADDRESS
:
511 if (data_len
!= ETH_ALEN
)
513 SET_IEEE80211_PERM_ADDR(dev
, entry
->data
);
515 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS
:
516 if (priv
->output_limit
)
518 err
= p54_convert_output_limits(dev
, entry
->data
,
523 case PDR_PRISM_PA_CAL_CURVE_DATA
: {
524 struct pda_pa_curve_data
*curve_data
=
525 (struct pda_pa_curve_data
*)entry
->data
;
526 if (data_len
< sizeof(*curve_data
)) {
531 switch (curve_data
->cal_method_rev
) {
533 err
= p54_convert_rev0(dev
, curve_data
);
536 err
= p54_convert_rev1(dev
, curve_data
);
539 printk(KERN_ERR
"%s: unknown curve data "
541 wiphy_name(dev
->wiphy
),
542 curve_data
->cal_method_rev
);
550 case PDR_PRISM_ZIF_TX_IQ_CALIBRATION
:
551 priv
->iq_autocal
= kmalloc(data_len
, GFP_KERNEL
);
552 if (!priv
->iq_autocal
) {
557 memcpy(priv
->iq_autocal
, entry
->data
, data_len
);
558 priv
->iq_autocal_len
= data_len
/ sizeof(struct pda_iq_autocal_entry
);
560 case PDR_DEFAULT_COUNTRY
:
561 p54_parse_default_country(dev
, entry
->data
, data_len
);
563 case PDR_INTERFACE_LIST
:
565 while ((u8
*)tmp
< entry
->data
+ data_len
) {
566 struct bootrec_exp_if
*exp_if
= tmp
;
567 if (le16_to_cpu(exp_if
->if_id
) == 0xf)
568 synth
= le16_to_cpu(exp_if
->variant
);
569 tmp
+= sizeof(struct bootrec_exp_if
);
572 case PDR_HARDWARE_PLATFORM_COMPONENT_ID
:
575 priv
->version
= *(u8
*)(entry
->data
+ 1);
577 case PDR_RSSI_LINEAR_APPROXIMATION
:
578 case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND
:
579 case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED
:
580 p54_parse_rssical(dev
, entry
->data
, data_len
,
581 le16_to_cpu(entry
->code
));
583 case PDR_RSSI_LINEAR_APPROXIMATION_CUSTOM
: {
584 __le16
*src
= (void *) entry
->data
;
585 s16
*dst
= (void *) &priv
->rssical_db
;
588 if (data_len
!= sizeof(priv
->rssical_db
)) {
592 for (i
= 0; i
< sizeof(priv
->rssical_db
) /
594 *(dst
++) = (s16
) le16_to_cpu(*(src
++));
597 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS_CUSTOM
: {
598 struct pda_custom_wrapper
*pda
= (void *) entry
->data
;
599 if (priv
->output_limit
|| data_len
< sizeof(*pda
))
601 priv
->output_limit
= p54_convert_db(pda
, data_len
);
604 case PDR_PRISM_PA_CAL_CURVE_DATA_CUSTOM
: {
605 struct pda_custom_wrapper
*pda
= (void *) entry
->data
;
606 if (priv
->curve_data
|| data_len
< sizeof(*pda
))
608 priv
->curve_data
= p54_convert_db(pda
, data_len
);
612 /* make it overrun */
615 case PDR_MANUFACTURING_PART_NUMBER
:
616 case PDR_PDA_VERSION
:
617 case PDR_NIC_SERIAL_NUMBER
:
618 case PDR_REGULATORY_DOMAIN_LIST
:
619 case PDR_TEMPERATURE_TYPE
:
620 case PDR_PRISM_PCI_IDENTIFIER
:
621 case PDR_COUNTRY_INFORMATION
:
623 case PDR_PRODUCT_NAME
:
624 case PDR_UTF8_OEM_NAME
:
625 case PDR_UTF8_PRODUCT_NAME
:
626 case PDR_COUNTRY_LIST
:
627 case PDR_ANTENNA_GAIN
:
628 case PDR_PRISM_INDIGO_PA_CALIBRATION_DATA
:
629 case PDR_REGULATORY_POWER_LIMITS
:
630 case PDR_RADIATED_TRANSMISSION_CORRECTION
:
631 case PDR_PRISM_TX_IQ_CALIBRATION
:
632 case PDR_BASEBAND_REGISTERS
:
633 case PDR_PER_CHANNEL_BASEBAND_REGISTERS
:
636 printk(KERN_INFO
"%s: unknown eeprom code : 0x%x\n",
637 wiphy_name(dev
->wiphy
),
638 le16_to_cpu(entry
->code
));
642 entry
= (void *)entry
+ (entry_len
+ 1)*2;
645 if (!synth
|| !priv
->iq_autocal
|| !priv
->output_limit
||
647 printk(KERN_ERR
"%s: not all required entries found in eeprom!\n",
648 wiphy_name(dev
->wiphy
));
653 priv
->rxhw
= synth
& PDR_SYNTH_FRONTEND_MASK
;
654 if (priv
->rxhw
== PDR_SYNTH_FRONTEND_XBOW
)
655 p54_init_xbow_synth(dev
);
656 if (!(synth
& PDR_SYNTH_24_GHZ_DISABLED
))
657 dev
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &band_2GHz
;
658 if (!(synth
& PDR_SYNTH_5_GHZ_DISABLED
))
659 dev
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &band_5GHz
;
660 if ((synth
& PDR_SYNTH_RX_DIV_MASK
) == PDR_SYNTH_RX_DIV_SUPPORTED
)
661 priv
->rx_diversity_mask
= 3;
662 if ((synth
& PDR_SYNTH_TX_DIV_MASK
) == PDR_SYNTH_TX_DIV_SUPPORTED
)
663 priv
->tx_diversity_mask
= 3;
665 if (!is_valid_ether_addr(dev
->wiphy
->perm_addr
)) {
666 u8 perm_addr
[ETH_ALEN
];
668 printk(KERN_WARNING
"%s: Invalid hwaddr! Using randomly generated MAC addr\n",
669 wiphy_name(dev
->wiphy
));
670 random_ether_addr(perm_addr
);
671 SET_IEEE80211_PERM_ADDR(dev
, perm_addr
);
674 printk(KERN_INFO
"%s: hwaddr %pM, MAC:isl38%02x RF:%s\n",
675 wiphy_name(dev
->wiphy
),
676 dev
->wiphy
->perm_addr
,
677 priv
->version
, p54_rf_chips
[priv
->rxhw
]);
682 if (priv
->iq_autocal
) {
683 kfree(priv
->iq_autocal
);
684 priv
->iq_autocal
= NULL
;
687 if (priv
->output_limit
) {
688 kfree(priv
->output_limit
);
689 priv
->output_limit
= NULL
;
692 if (priv
->curve_data
) {
693 kfree(priv
->curve_data
);
694 priv
->curve_data
= NULL
;
697 printk(KERN_ERR
"%s: eeprom parse failed!\n",
698 wiphy_name(dev
->wiphy
));
701 EXPORT_SYMBOL_GPL(p54_parse_eeprom
);
703 static int p54_rssi_to_dbm(struct ieee80211_hw
*dev
, int rssi
)
705 struct p54_common
*priv
= dev
->priv
;
706 int band
= dev
->conf
.channel
->band
;
708 if (priv
->rxhw
!= PDR_SYNTH_FRONTEND_LONGBOW
)
709 return ((rssi
* priv
->rssical_db
[band
].mul
) / 64 +
710 priv
->rssical_db
[band
].add
) / 4;
713 * TODO: find the correct formula
715 return ((rssi
* priv
->rssical_db
[band
].mul
) / 64 +
716 priv
->rssical_db
[band
].add
) / 4;
719 static int p54_rx_data(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
721 struct p54_common
*priv
= dev
->priv
;
722 struct p54_rx_data
*hdr
= (struct p54_rx_data
*) skb
->data
;
723 struct ieee80211_rx_status rx_status
= {0};
724 u16 freq
= le16_to_cpu(hdr
->freq
);
725 size_t header_len
= sizeof(*hdr
);
727 u8 rate
= hdr
->rate
& 0xf;
730 * If the device is in a unspecified state we have to
731 * ignore all data frames. Else we could end up with a
734 if (unlikely(priv
->mode
== NL80211_IFTYPE_UNSPECIFIED
))
737 if (!(hdr
->flags
& cpu_to_le16(P54_HDR_FLAG_DATA_IN_FCS_GOOD
))) {
738 if (priv
->filter_flags
& FIF_FCSFAIL
)
739 rx_status
.flag
|= RX_FLAG_FAILED_FCS_CRC
;
744 if (hdr
->decrypt_status
== P54_DECRYPT_OK
)
745 rx_status
.flag
|= RX_FLAG_DECRYPTED
;
746 if ((hdr
->decrypt_status
== P54_DECRYPT_FAIL_MICHAEL
) ||
747 (hdr
->decrypt_status
== P54_DECRYPT_FAIL_TKIP
))
748 rx_status
.flag
|= RX_FLAG_MMIC_ERROR
;
750 rx_status
.signal
= p54_rssi_to_dbm(dev
, hdr
->rssi
);
751 rx_status
.noise
= priv
->noise
;
753 rx_status
.qual
= (100 * hdr
->rssi
) / 127;
754 if (hdr
->rate
& 0x10)
755 rx_status
.flag
|= RX_FLAG_SHORTPRE
;
756 if (dev
->conf
.channel
->band
== IEEE80211_BAND_5GHZ
)
757 rx_status
.rate_idx
= (rate
< 4) ? 0 : rate
- 4;
759 rx_status
.rate_idx
= rate
;
761 rx_status
.freq
= freq
;
762 rx_status
.band
= dev
->conf
.channel
->band
;
763 rx_status
.antenna
= hdr
->antenna
;
765 tsf32
= le32_to_cpu(hdr
->tsf32
);
766 if (tsf32
< priv
->tsf_low32
)
768 rx_status
.mactime
= ((u64
)priv
->tsf_high32
) << 32 | tsf32
;
769 priv
->tsf_low32
= tsf32
;
771 rx_status
.flag
|= RX_FLAG_TSFT
;
773 if (hdr
->flags
& cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN
))
774 header_len
+= hdr
->align
[0];
776 skb_pull(skb
, header_len
);
777 skb_trim(skb
, le16_to_cpu(hdr
->len
));
779 ieee80211_rx_irqsafe(dev
, skb
, &rx_status
);
781 queue_delayed_work(dev
->workqueue
, &priv
->work
,
782 msecs_to_jiffies(P54_STATISTICS_UPDATE
));
787 static void inline p54_wake_free_queues(struct ieee80211_hw
*dev
)
789 struct p54_common
*priv
= dev
->priv
;
792 if (priv
->mode
== NL80211_IFTYPE_UNSPECIFIED
)
795 for (i
= 0; i
< dev
->queues
; i
++)
796 if (priv
->tx_stats
[i
+ P54_QUEUE_DATA
].len
<
797 priv
->tx_stats
[i
+ P54_QUEUE_DATA
].limit
)
798 ieee80211_wake_queue(dev
, i
);
801 void p54_free_skb(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
803 struct p54_common
*priv
= dev
->priv
;
804 struct ieee80211_tx_info
*info
;
805 struct p54_tx_info
*range
;
807 u32 freed
= 0, last_addr
= priv
->rx_start
;
809 if (unlikely(!skb
|| !dev
|| !skb_queue_len(&priv
->tx_queue
)))
813 * don't try to free an already unlinked skb
815 if (unlikely((!skb
->next
) || (!skb
->prev
)))
818 spin_lock_irqsave(&priv
->tx_queue
.lock
, flags
);
819 info
= IEEE80211_SKB_CB(skb
);
820 range
= (void *)info
->rate_driver_data
;
821 if (skb
->prev
!= (struct sk_buff
*)&priv
->tx_queue
) {
822 struct ieee80211_tx_info
*ni
;
823 struct p54_tx_info
*mr
;
825 ni
= IEEE80211_SKB_CB(skb
->prev
);
826 mr
= (struct p54_tx_info
*)ni
->rate_driver_data
;
827 last_addr
= mr
->end_addr
;
829 if (skb
->next
!= (struct sk_buff
*)&priv
->tx_queue
) {
830 struct ieee80211_tx_info
*ni
;
831 struct p54_tx_info
*mr
;
833 ni
= IEEE80211_SKB_CB(skb
->next
);
834 mr
= (struct p54_tx_info
*)ni
->rate_driver_data
;
835 freed
= mr
->start_addr
- last_addr
;
837 freed
= priv
->rx_end
- last_addr
;
838 __skb_unlink(skb
, &priv
->tx_queue
);
839 spin_unlock_irqrestore(&priv
->tx_queue
.lock
, flags
);
840 dev_kfree_skb_any(skb
);
842 if (freed
>= priv
->headroom
+ sizeof(struct p54_hdr
) + 48 +
843 IEEE80211_MAX_RTS_THRESHOLD
+ priv
->tailroom
)
844 p54_wake_free_queues(dev
);
846 EXPORT_SYMBOL_GPL(p54_free_skb
);
848 static struct sk_buff
*p54_find_tx_entry(struct ieee80211_hw
*dev
,
851 struct p54_common
*priv
= dev
->priv
;
852 struct sk_buff
*entry
;
855 spin_lock_irqsave(&priv
->tx_queue
.lock
, flags
);
856 entry
= priv
->tx_queue
.next
;
857 while (entry
!= (struct sk_buff
*)&priv
->tx_queue
) {
858 struct p54_hdr
*hdr
= (struct p54_hdr
*) entry
->data
;
860 if (hdr
->req_id
== req_id
) {
861 spin_unlock_irqrestore(&priv
->tx_queue
.lock
, flags
);
866 spin_unlock_irqrestore(&priv
->tx_queue
.lock
, flags
);
870 static void p54_rx_frame_sent(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
872 struct p54_common
*priv
= dev
->priv
;
873 struct p54_hdr
*hdr
= (struct p54_hdr
*) skb
->data
;
874 struct p54_frame_sent
*payload
= (struct p54_frame_sent
*) hdr
->data
;
875 struct sk_buff
*entry
;
876 u32 addr
= le32_to_cpu(hdr
->req_id
) - priv
->headroom
;
877 struct p54_tx_info
*range
= NULL
;
879 u32 last_addr
= priv
->rx_start
;
883 spin_lock_irqsave(&priv
->tx_queue
.lock
, flags
);
884 entry
= (struct sk_buff
*) priv
->tx_queue
.next
;
885 while (entry
!= (struct sk_buff
*)&priv
->tx_queue
) {
886 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(entry
);
887 struct p54_hdr
*entry_hdr
;
888 struct p54_tx_data
*entry_data
;
889 unsigned int pad
= 0, frame_len
;
891 range
= (void *)info
->rate_driver_data
;
892 if (range
->start_addr
!= addr
) {
893 last_addr
= range
->end_addr
;
898 if (entry
->next
!= (struct sk_buff
*)&priv
->tx_queue
) {
899 struct ieee80211_tx_info
*ni
;
900 struct p54_tx_info
*mr
;
902 ni
= IEEE80211_SKB_CB(entry
->next
);
903 mr
= (struct p54_tx_info
*)ni
->rate_driver_data
;
904 freed
= mr
->start_addr
- last_addr
;
906 freed
= priv
->rx_end
- last_addr
;
908 last_addr
= range
->end_addr
;
909 __skb_unlink(entry
, &priv
->tx_queue
);
910 spin_unlock_irqrestore(&priv
->tx_queue
.lock
, flags
);
912 frame_len
= entry
->len
;
913 entry_hdr
= (struct p54_hdr
*) entry
->data
;
914 entry_data
= (struct p54_tx_data
*) entry_hdr
->data
;
915 priv
->tx_stats
[entry_data
->hw_queue
].len
--;
916 priv
->stats
.dot11ACKFailureCount
+= payload
->tries
- 1;
919 * Frames in P54_QUEUE_FWSCAN and P54_QUEUE_BEACON are
920 * generated by the driver. Therefore tx_status is bogus
921 * and we don't want to confuse the mac80211 stack.
923 if (unlikely(entry_data
->hw_queue
< P54_QUEUE_FWSCAN
)) {
924 if (entry_data
->hw_queue
== P54_QUEUE_BEACON
)
925 priv
->cached_beacon
= NULL
;
932 * Clear manually, ieee80211_tx_info_clear_status would
933 * clear the counts too and we need them.
935 memset(&info
->status
.ampdu_ack_len
, 0,
936 sizeof(struct ieee80211_tx_info
) -
937 offsetof(struct ieee80211_tx_info
, status
.ampdu_ack_len
));
938 BUILD_BUG_ON(offsetof(struct ieee80211_tx_info
,
939 status
.ampdu_ack_len
) != 23);
941 if (entry_hdr
->flags
& cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN
))
942 pad
= entry_data
->align
[0];
944 /* walk through the rates array and adjust the counts */
945 count
= payload
->tries
;
946 for (idx
= 0; idx
< 4; idx
++) {
947 if (count
>= info
->status
.rates
[idx
].count
) {
948 count
-= info
->status
.rates
[idx
].count
;
949 } else if (count
> 0) {
950 info
->status
.rates
[idx
].count
= count
;
953 info
->status
.rates
[idx
].idx
= -1;
954 info
->status
.rates
[idx
].count
= 0;
958 if (!(info
->flags
& IEEE80211_TX_CTL_NO_ACK
) &&
960 info
->flags
|= IEEE80211_TX_STAT_ACK
;
961 if (payload
->status
& P54_TX_PSM_CANCELLED
)
962 info
->flags
|= IEEE80211_TX_STAT_TX_FILTERED
;
963 info
->status
.ack_signal
= p54_rssi_to_dbm(dev
,
964 (int)payload
->ack_rssi
);
966 /* Undo all changes to the frame. */
967 switch (entry_data
->key_type
) {
968 case P54_CRYPTO_TKIPMICHAEL
: {
969 u8
*iv
= (u8
*)(entry_data
->align
+ pad
+
970 entry_data
->crypt_offset
);
972 /* Restore the original TKIP IV. */
975 iv
[1] = (iv
[0] | 0x20) & 0x7f; /* WEPSeed - 8.3.2.2 */
977 frame_len
-= 12; /* remove TKIP_MMIC + TKIP_ICV */
980 case P54_CRYPTO_AESCCMP
:
981 frame_len
-= 8; /* remove CCMP_MIC */
984 frame_len
-= 4; /* remove WEP_ICV */
987 skb_trim(entry
, frame_len
);
988 skb_pull(entry
, sizeof(*hdr
) + pad
+ sizeof(*entry_data
));
989 ieee80211_tx_status_irqsafe(dev
, entry
);
992 spin_unlock_irqrestore(&priv
->tx_queue
.lock
, flags
);
995 if (freed
>= priv
->headroom
+ sizeof(struct p54_hdr
) + 48 +
996 IEEE80211_MAX_RTS_THRESHOLD
+ priv
->tailroom
)
997 p54_wake_free_queues(dev
);
1000 static void p54_rx_eeprom_readback(struct ieee80211_hw
*dev
,
1001 struct sk_buff
*skb
)
1003 struct p54_hdr
*hdr
= (struct p54_hdr
*) skb
->data
;
1004 struct p54_eeprom_lm86
*eeprom
= (struct p54_eeprom_lm86
*) hdr
->data
;
1005 struct p54_common
*priv
= dev
->priv
;
1010 if (priv
->fw_var
>= 0x509) {
1011 memcpy(priv
->eeprom
, eeprom
->v2
.data
,
1012 le16_to_cpu(eeprom
->v2
.len
));
1014 memcpy(priv
->eeprom
, eeprom
->v1
.data
,
1015 le16_to_cpu(eeprom
->v1
.len
));
1018 complete(&priv
->eeprom_comp
);
1021 static void p54_rx_stats(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
1023 struct p54_common
*priv
= dev
->priv
;
1024 struct p54_hdr
*hdr
= (struct p54_hdr
*) skb
->data
;
1025 struct p54_statistics
*stats
= (struct p54_statistics
*) hdr
->data
;
1028 if (unlikely(priv
->mode
== NL80211_IFTYPE_UNSPECIFIED
))
1031 tsf32
= le32_to_cpu(stats
->tsf32
);
1032 if (tsf32
< priv
->tsf_low32
)
1034 priv
->tsf_low32
= tsf32
;
1036 priv
->stats
.dot11RTSFailureCount
= le32_to_cpu(stats
->rts_fail
);
1037 priv
->stats
.dot11RTSSuccessCount
= le32_to_cpu(stats
->rts_success
);
1038 priv
->stats
.dot11FCSErrorCount
= le32_to_cpu(stats
->rx_bad_fcs
);
1040 priv
->noise
= p54_rssi_to_dbm(dev
, le32_to_cpu(stats
->noise
));
1042 p54_free_skb(dev
, p54_find_tx_entry(dev
, hdr
->req_id
));
1045 static void p54_rx_trap(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
1047 struct p54_hdr
*hdr
= (struct p54_hdr
*) skb
->data
;
1048 struct p54_trap
*trap
= (struct p54_trap
*) hdr
->data
;
1049 u16 event
= le16_to_cpu(trap
->event
);
1050 u16 freq
= le16_to_cpu(trap
->frequency
);
1053 case P54_TRAP_BEACON_TX
:
1055 case P54_TRAP_RADAR
:
1056 printk(KERN_INFO
"%s: radar (freq:%d MHz)\n",
1057 wiphy_name(dev
->wiphy
), freq
);
1059 case P54_TRAP_NO_BEACON
:
1065 case P54_TRAP_TIMER
:
1068 printk(KERN_INFO
"%s: received event:%x freq:%d\n",
1069 wiphy_name(dev
->wiphy
), event
, freq
);
1074 static int p54_rx_control(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
1076 struct p54_hdr
*hdr
= (struct p54_hdr
*) skb
->data
;
1078 switch (le16_to_cpu(hdr
->type
)) {
1079 case P54_CONTROL_TYPE_TXDONE
:
1080 p54_rx_frame_sent(dev
, skb
);
1082 case P54_CONTROL_TYPE_TRAP
:
1083 p54_rx_trap(dev
, skb
);
1085 case P54_CONTROL_TYPE_BBP
:
1087 case P54_CONTROL_TYPE_STAT_READBACK
:
1088 p54_rx_stats(dev
, skb
);
1090 case P54_CONTROL_TYPE_EEPROM_READBACK
:
1091 p54_rx_eeprom_readback(dev
, skb
);
1094 printk(KERN_DEBUG
"%s: not handling 0x%02x type control frame\n",
1095 wiphy_name(dev
->wiphy
), le16_to_cpu(hdr
->type
));
1102 /* returns zero if skb can be reused */
1103 int p54_rx(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
1105 u16 type
= le16_to_cpu(*((__le16
*)skb
->data
));
1107 if (type
& P54_HDR_FLAG_CONTROL
)
1108 return p54_rx_control(dev
, skb
);
1110 return p54_rx_data(dev
, skb
);
1112 EXPORT_SYMBOL_GPL(p54_rx
);
1115 * So, the firmware is somewhat stupid and doesn't know what places in its
1116 * memory incoming data should go to. By poking around in the firmware, we
1117 * can find some unused memory to upload our packets to. However, data that we
1118 * want the card to TX needs to stay intact until the card has told us that
1119 * it is done with it. This function finds empty places we can upload to and
1120 * marks allocated areas as reserved if necessary. p54_rx_frame_sent or
1121 * p54_free_skb frees allocated areas.
1123 static int p54_assign_address(struct ieee80211_hw
*dev
, struct sk_buff
*skb
,
1124 struct p54_hdr
*data
, u32 len
)
1126 struct p54_common
*priv
= dev
->priv
;
1127 struct sk_buff
*entry
;
1128 struct sk_buff
*target_skb
= NULL
;
1129 struct ieee80211_tx_info
*info
;
1130 struct p54_tx_info
*range
;
1131 u32 last_addr
= priv
->rx_start
;
1132 u32 largest_hole
= 0;
1133 u32 target_addr
= priv
->rx_start
;
1134 unsigned long flags
;
1136 len
= (len
+ priv
->headroom
+ priv
->tailroom
+ 3) & ~0x3;
1141 spin_lock_irqsave(&priv
->tx_queue
.lock
, flags
);
1143 left
= skb_queue_len(&priv
->tx_queue
);
1144 if (unlikely(left
>= 28)) {
1146 * The tx_queue is nearly full!
1147 * We have throttle normal data traffic, because we must
1148 * have a few spare slots for control frames left.
1150 ieee80211_stop_queues(dev
);
1151 queue_delayed_work(dev
->workqueue
, &priv
->work
,
1152 msecs_to_jiffies(P54_TX_TIMEOUT
));
1154 if (unlikely(left
== 32)) {
1156 * The tx_queue is now really full.
1158 * TODO: check if the device has crashed and reset it.
1160 spin_unlock_irqrestore(&priv
->tx_queue
.lock
, flags
);
1165 entry
= priv
->tx_queue
.next
;
1168 info
= IEEE80211_SKB_CB(entry
);
1169 range
= (void *)info
->rate_driver_data
;
1170 hole_size
= range
->start_addr
- last_addr
;
1171 if (!target_skb
&& hole_size
>= len
) {
1172 target_skb
= entry
->prev
;
1174 target_addr
= last_addr
;
1176 largest_hole
= max(largest_hole
, hole_size
);
1177 last_addr
= range
->end_addr
;
1178 entry
= entry
->next
;
1180 if (!target_skb
&& priv
->rx_end
- last_addr
>= len
) {
1181 target_skb
= priv
->tx_queue
.prev
;
1182 largest_hole
= max(largest_hole
, priv
->rx_end
- last_addr
- len
);
1183 if (!skb_queue_empty(&priv
->tx_queue
)) {
1184 info
= IEEE80211_SKB_CB(target_skb
);
1185 range
= (void *)info
->rate_driver_data
;
1186 target_addr
= range
->end_addr
;
1189 largest_hole
= max(largest_hole
, priv
->rx_end
- last_addr
);
1192 spin_unlock_irqrestore(&priv
->tx_queue
.lock
, flags
);
1193 ieee80211_stop_queues(dev
);
1197 info
= IEEE80211_SKB_CB(skb
);
1198 range
= (void *)info
->rate_driver_data
;
1199 range
->start_addr
= target_addr
;
1200 range
->end_addr
= target_addr
+ len
;
1201 __skb_queue_after(&priv
->tx_queue
, target_skb
, skb
);
1202 spin_unlock_irqrestore(&priv
->tx_queue
.lock
, flags
);
1204 if (largest_hole
< priv
->headroom
+ sizeof(struct p54_hdr
) +
1205 48 + IEEE80211_MAX_RTS_THRESHOLD
+ priv
->tailroom
)
1206 ieee80211_stop_queues(dev
);
1208 data
->req_id
= cpu_to_le32(target_addr
+ priv
->headroom
);
1212 static struct sk_buff
*p54_alloc_skb(struct ieee80211_hw
*dev
, u16 hdr_flags
,
1213 u16 payload_len
, u16 type
, gfp_t memflags
)
1215 struct p54_common
*priv
= dev
->priv
;
1216 struct p54_hdr
*hdr
;
1217 struct sk_buff
*skb
;
1218 size_t frame_len
= sizeof(*hdr
) + payload_len
;
1220 if (frame_len
> P54_MAX_CTRL_FRAME_LEN
)
1223 skb
= __dev_alloc_skb(priv
->tx_hdr_len
+ frame_len
, memflags
);
1226 skb_reserve(skb
, priv
->tx_hdr_len
);
1228 hdr
= (struct p54_hdr
*) skb_put(skb
, sizeof(*hdr
));
1229 hdr
->flags
= cpu_to_le16(hdr_flags
);
1230 hdr
->len
= cpu_to_le16(payload_len
);
1231 hdr
->type
= cpu_to_le16(type
);
1232 hdr
->tries
= hdr
->rts_tries
= 0;
1234 if (p54_assign_address(dev
, skb
, hdr
, frame_len
)) {
1241 int p54_read_eeprom(struct ieee80211_hw
*dev
)
1243 struct p54_common
*priv
= dev
->priv
;
1244 struct p54_eeprom_lm86
*eeprom_hdr
;
1245 struct sk_buff
*skb
;
1246 size_t eeprom_size
= 0x2020, offset
= 0, blocksize
, maxblocksize
;
1248 void *eeprom
= NULL
;
1250 maxblocksize
= EEPROM_READBACK_LEN
;
1251 if (priv
->fw_var
>= 0x509)
1252 maxblocksize
-= 0xc;
1254 maxblocksize
-= 0x4;
1256 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL
, sizeof(*eeprom_hdr
) +
1257 maxblocksize
, P54_CONTROL_TYPE_EEPROM_READBACK
,
1261 priv
->eeprom
= kzalloc(EEPROM_READBACK_LEN
, GFP_KERNEL
);
1264 eeprom
= kzalloc(eeprom_size
, GFP_KERNEL
);
1268 eeprom_hdr
= (struct p54_eeprom_lm86
*) skb_put(skb
,
1269 sizeof(*eeprom_hdr
) + maxblocksize
);
1271 while (eeprom_size
) {
1272 blocksize
= min(eeprom_size
, maxblocksize
);
1273 if (priv
->fw_var
< 0x509) {
1274 eeprom_hdr
->v1
.offset
= cpu_to_le16(offset
);
1275 eeprom_hdr
->v1
.len
= cpu_to_le16(blocksize
);
1277 eeprom_hdr
->v2
.offset
= cpu_to_le32(offset
);
1278 eeprom_hdr
->v2
.len
= cpu_to_le16(blocksize
);
1279 eeprom_hdr
->v2
.magic2
= 0xf;
1280 memcpy(eeprom_hdr
->v2
.magic
, (const char *)"LOCK", 4);
1284 if (!wait_for_completion_interruptible_timeout(&priv
->eeprom_comp
, HZ
)) {
1285 printk(KERN_ERR
"%s: device does not respond!\n",
1286 wiphy_name(dev
->wiphy
));
1291 memcpy(eeprom
+ offset
, priv
->eeprom
, blocksize
);
1292 offset
+= blocksize
;
1293 eeprom_size
-= blocksize
;
1296 ret
= p54_parse_eeprom(dev
, eeprom
, offset
);
1298 kfree(priv
->eeprom
);
1299 priv
->eeprom
= NULL
;
1300 p54_free_skb(dev
, skb
);
1305 EXPORT_SYMBOL_GPL(p54_read_eeprom
);
1307 static int p54_set_tim(struct ieee80211_hw
*dev
, struct ieee80211_sta
*sta
,
1310 struct p54_common
*priv
= dev
->priv
;
1311 struct sk_buff
*skb
;
1312 struct p54_tim
*tim
;
1314 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*tim
),
1315 P54_CONTROL_TYPE_TIM
, GFP_ATOMIC
);
1319 tim
= (struct p54_tim
*) skb_put(skb
, sizeof(*tim
));
1321 tim
->entry
[0] = cpu_to_le16(set
? (sta
->aid
| 0x8000) : sta
->aid
);
1326 static int p54_sta_unlock(struct ieee80211_hw
*dev
, u8
*addr
)
1328 struct p54_common
*priv
= dev
->priv
;
1329 struct sk_buff
*skb
;
1330 struct p54_sta_unlock
*sta
;
1332 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*sta
),
1333 P54_CONTROL_TYPE_PSM_STA_UNLOCK
, GFP_ATOMIC
);
1337 sta
= (struct p54_sta_unlock
*)skb_put(skb
, sizeof(*sta
));
1338 memcpy(sta
->addr
, addr
, ETH_ALEN
);
1343 static void p54_sta_notify(struct ieee80211_hw
*dev
, struct ieee80211_vif
*vif
,
1344 enum sta_notify_cmd notify_cmd
,
1345 struct ieee80211_sta
*sta
)
1347 switch (notify_cmd
) {
1348 case STA_NOTIFY_ADD
:
1349 case STA_NOTIFY_REMOVE
:
1351 * Notify the firmware that we don't want or we don't
1352 * need to buffer frames for this station anymore.
1355 p54_sta_unlock(dev
, sta
->addr
);
1357 case STA_NOTIFY_AWAKE
:
1358 /* update the firmware's filter table */
1359 p54_sta_unlock(dev
, sta
->addr
);
1366 static int p54_tx_cancel(struct ieee80211_hw
*dev
, struct sk_buff
*entry
)
1368 struct p54_common
*priv
= dev
->priv
;
1369 struct sk_buff
*skb
;
1370 struct p54_hdr
*hdr
;
1371 struct p54_txcancel
*cancel
;
1373 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*cancel
),
1374 P54_CONTROL_TYPE_TXCANCEL
, GFP_ATOMIC
);
1378 hdr
= (void *)entry
->data
;
1379 cancel
= (struct p54_txcancel
*)skb_put(skb
, sizeof(*cancel
));
1380 cancel
->req_id
= hdr
->req_id
;
1385 static int p54_tx_fill(struct ieee80211_hw
*dev
, struct sk_buff
*skb
,
1386 struct ieee80211_tx_info
*info
, u8
*queue
, size_t *extra_len
,
1387 u16
*flags
, u16
*aid
)
1389 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
1390 struct p54_common
*priv
= dev
->priv
;
1393 switch (priv
->mode
) {
1394 case NL80211_IFTYPE_MONITOR
:
1396 * We have to set P54_HDR_FLAG_DATA_OUT_PROMISC for
1397 * every frame in promiscuous/monitor mode.
1398 * see STSW45x0C LMAC API - page 12.
1401 *flags
= P54_HDR_FLAG_DATA_OUT_PROMISC
;
1402 *queue
+= P54_QUEUE_DATA
;
1404 case NL80211_IFTYPE_STATION
:
1406 if (unlikely(ieee80211_is_mgmt(hdr
->frame_control
))) {
1407 *queue
= P54_QUEUE_MGMT
;
1410 *queue
+= P54_QUEUE_DATA
;
1412 case NL80211_IFTYPE_AP
:
1413 case NL80211_IFTYPE_ADHOC
:
1414 case NL80211_IFTYPE_MESH_POINT
:
1415 if (info
->flags
& IEEE80211_TX_CTL_SEND_AFTER_DTIM
) {
1417 *queue
= P54_QUEUE_CAB
;
1421 if (unlikely(ieee80211_is_mgmt(hdr
->frame_control
))) {
1422 if (ieee80211_is_probe_resp(hdr
->frame_control
)) {
1424 *queue
= P54_QUEUE_MGMT
;
1425 *flags
= P54_HDR_FLAG_DATA_OUT_TIMESTAMP
|
1426 P54_HDR_FLAG_DATA_OUT_NOCANCEL
;
1428 } else if (ieee80211_is_beacon(hdr
->frame_control
)) {
1431 if (info
->flags
& IEEE80211_TX_CTL_INJECTED
) {
1433 * Injecting beacons on top of a AP is
1434 * not a good idea... nevertheless,
1435 * it should be doable.
1438 *queue
+= P54_QUEUE_DATA
;
1442 *flags
= P54_HDR_FLAG_DATA_OUT_TIMESTAMP
;
1443 *queue
= P54_QUEUE_BEACON
;
1444 *extra_len
= IEEE80211_MAX_TIM_LEN
;
1447 *queue
= P54_QUEUE_MGMT
;
1451 *queue
+= P54_QUEUE_DATA
;
1453 if (info
->control
.sta
)
1454 *aid
= info
->control
.sta
->aid
;
1456 *flags
|= P54_HDR_FLAG_DATA_OUT_NOCANCEL
;
1462 static u8
p54_convert_algo(enum ieee80211_key_alg alg
)
1466 return P54_CRYPTO_WEP
;
1468 return P54_CRYPTO_TKIPMICHAEL
;
1470 return P54_CRYPTO_AESCCMP
;
1476 static int p54_tx(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
1478 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
1479 struct ieee80211_tx_queue_stats
*current_queue
;
1480 struct p54_common
*priv
= dev
->priv
;
1481 struct p54_hdr
*hdr
;
1482 struct p54_tx_data
*txhdr
;
1483 size_t padding
, len
, tim_len
= 0;
1484 int i
, j
, ridx
, ret
;
1485 u16 hdr_flags
= 0, aid
= 0;
1486 u8 rate
, queue
, crypt_offset
= 0;
1489 u8 calculated_tries
[4];
1490 u8 nrates
= 0, nremaining
= 8;
1492 queue
= skb_get_queue_mapping(skb
);
1494 ret
= p54_tx_fill(dev
, skb
, info
, &queue
, &tim_len
, &hdr_flags
, &aid
);
1495 current_queue
= &priv
->tx_stats
[queue
];
1496 if (unlikely((current_queue
->len
> current_queue
->limit
) && ret
))
1497 return NETDEV_TX_BUSY
;
1498 current_queue
->len
++;
1499 current_queue
->count
++;
1500 if ((current_queue
->len
== current_queue
->limit
) && ret
)
1501 ieee80211_stop_queue(dev
, skb_get_queue_mapping(skb
));
1503 padding
= (unsigned long)(skb
->data
- (sizeof(*hdr
) + sizeof(*txhdr
))) & 3;
1506 if (info
->control
.hw_key
) {
1507 crypt_offset
= ieee80211_get_hdrlen_from_skb(skb
);
1508 if (info
->control
.hw_key
->alg
== ALG_TKIP
) {
1509 u8
*iv
= (u8
*)(skb
->data
+ crypt_offset
);
1511 * The firmware excepts that the IV has to have
1512 * this special format
1520 txhdr
= (struct p54_tx_data
*) skb_push(skb
, sizeof(*txhdr
) + padding
);
1521 hdr
= (struct p54_hdr
*) skb_push(skb
, sizeof(*hdr
));
1524 hdr_flags
|= P54_HDR_FLAG_DATA_ALIGN
;
1525 hdr
->type
= cpu_to_le16(aid
);
1526 hdr
->rts_tries
= info
->control
.rates
[0].count
;
1529 * we register the rates in perfect order, and
1530 * RTS/CTS won't happen on 5 GHz
1532 cts_rate
= info
->control
.rts_cts_rate_idx
;
1534 memset(&txhdr
->rateset
, 0, sizeof(txhdr
->rateset
));
1536 /* see how many rates got used */
1537 for (i
= 0; i
< 4; i
++) {
1538 if (info
->control
.rates
[i
].idx
< 0)
1543 /* limit tries to 8/nrates per rate */
1544 for (i
= 0; i
< nrates
; i
++) {
1546 * The magic expression here is equivalent to 8/nrates for
1547 * all values that matter, but avoids division and jumps.
1548 * Note that nrates can only take the values 1 through 4.
1550 calculated_tries
[i
] = min_t(int, ((15 >> nrates
) | 1) + 1,
1551 info
->control
.rates
[i
].count
);
1552 nremaining
-= calculated_tries
[i
];
1555 /* if there are tries left, distribute from back to front */
1556 for (i
= nrates
- 1; nremaining
> 0 && i
>= 0; i
--) {
1557 int tmp
= info
->control
.rates
[i
].count
- calculated_tries
[i
];
1561 /* RC requested more tries at this rate */
1563 tmp
= min_t(int, tmp
, nremaining
);
1564 calculated_tries
[i
] += tmp
;
1569 for (i
= 0; i
< nrates
&& ridx
< 8; i
++) {
1570 /* we register the rates in perfect order */
1571 rate
= info
->control
.rates
[i
].idx
;
1572 if (info
->band
== IEEE80211_BAND_5GHZ
)
1575 /* store the count we actually calculated for TX status */
1576 info
->control
.rates
[i
].count
= calculated_tries
[i
];
1578 rc_flags
= info
->control
.rates
[i
].flags
;
1579 if (rc_flags
& IEEE80211_TX_RC_USE_SHORT_PREAMBLE
) {
1583 if (rc_flags
& IEEE80211_TX_RC_USE_RTS_CTS
)
1585 else if (rc_flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
)
1587 for (j
= 0; j
< calculated_tries
[i
] && ridx
< 8; j
++) {
1588 txhdr
->rateset
[ridx
] = rate
;
1593 if (info
->flags
& IEEE80211_TX_CTL_ASSIGN_SEQ
)
1594 hdr_flags
|= P54_HDR_FLAG_DATA_OUT_SEQNR
;
1596 /* TODO: enable bursting */
1597 hdr
->flags
= cpu_to_le16(hdr_flags
);
1599 txhdr
->rts_rate_idx
= 0;
1600 if (info
->control
.hw_key
) {
1601 txhdr
->key_type
= p54_convert_algo(info
->control
.hw_key
->alg
);
1602 txhdr
->key_len
= min((u8
)16, info
->control
.hw_key
->keylen
);
1603 memcpy(txhdr
->key
, info
->control
.hw_key
->key
, txhdr
->key_len
);
1604 if (info
->control
.hw_key
->alg
== ALG_TKIP
) {
1605 if (unlikely(skb_tailroom(skb
) < 12))
1607 /* reserve space for the MIC key */
1609 memcpy(skb_put(skb
, 8), &(info
->control
.hw_key
->key
1610 [NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
]), 8);
1612 /* reserve some space for ICV */
1613 len
+= info
->control
.hw_key
->icv_len
;
1614 memset(skb_put(skb
, info
->control
.hw_key
->icv_len
), 0,
1615 info
->control
.hw_key
->icv_len
);
1617 txhdr
->key_type
= 0;
1620 txhdr
->crypt_offset
= crypt_offset
;
1621 txhdr
->hw_queue
= queue
;
1622 txhdr
->backlog
= current_queue
->len
;
1623 memset(txhdr
->durations
, 0, sizeof(txhdr
->durations
));
1624 txhdr
->tx_antenna
= ((info
->antenna_sel_tx
== 0) ?
1625 2 : info
->antenna_sel_tx
- 1) & priv
->tx_diversity_mask
;
1626 if (priv
->rxhw
== PDR_SYNTH_FRONTEND_LONGBOW
) {
1627 txhdr
->longbow
.cts_rate
= cts_rate
;
1628 txhdr
->longbow
.output_power
= cpu_to_le16(priv
->output_power
);
1630 txhdr
->normal
.output_power
= priv
->output_power
;
1631 txhdr
->normal
.cts_rate
= cts_rate
;
1634 txhdr
->align
[0] = padding
;
1636 hdr
->len
= cpu_to_le16(len
);
1637 /* modifies skb->cb and with it info, so must be last! */
1638 if (unlikely(p54_assign_address(dev
, skb
, hdr
, skb
->len
+ tim_len
)))
1642 queue_delayed_work(dev
->workqueue
, &priv
->work
,
1643 msecs_to_jiffies(P54_TX_FRAME_LIFETIME
));
1645 return NETDEV_TX_OK
;
1648 skb_pull(skb
, sizeof(*hdr
) + sizeof(*txhdr
) + padding
);
1649 current_queue
->len
--;
1650 current_queue
->count
--;
1651 return NETDEV_TX_BUSY
;
1654 static int p54_setup_mac(struct ieee80211_hw
*dev
)
1656 struct p54_common
*priv
= dev
->priv
;
1657 struct sk_buff
*skb
;
1658 struct p54_setup_mac
*setup
;
1661 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*setup
),
1662 P54_CONTROL_TYPE_SETUP
, GFP_ATOMIC
);
1666 setup
= (struct p54_setup_mac
*) skb_put(skb
, sizeof(*setup
));
1667 if (dev
->conf
.radio_enabled
) {
1668 switch (priv
->mode
) {
1669 case NL80211_IFTYPE_STATION
:
1670 mode
= P54_FILTER_TYPE_STATION
;
1672 case NL80211_IFTYPE_AP
:
1673 mode
= P54_FILTER_TYPE_AP
;
1675 case NL80211_IFTYPE_ADHOC
:
1676 case NL80211_IFTYPE_MESH_POINT
:
1677 mode
= P54_FILTER_TYPE_IBSS
;
1679 case NL80211_IFTYPE_MONITOR
:
1680 mode
= P54_FILTER_TYPE_PROMISCUOUS
;
1683 mode
= P54_FILTER_TYPE_NONE
;
1688 * "TRANSPARENT and PROMISCUOUS are mutually exclusive"
1689 * STSW45X0C LMAC API - page 12
1691 if (((priv
->filter_flags
& FIF_PROMISC_IN_BSS
) ||
1692 (priv
->filter_flags
& FIF_OTHER_BSS
)) &&
1693 (mode
!= P54_FILTER_TYPE_PROMISCUOUS
))
1694 mode
|= P54_FILTER_TYPE_TRANSPARENT
;
1696 mode
= P54_FILTER_TYPE_RX_DISABLED
;
1698 setup
->mac_mode
= cpu_to_le16(mode
);
1699 memcpy(setup
->mac_addr
, priv
->mac_addr
, ETH_ALEN
);
1700 memcpy(setup
->bssid
, priv
->bssid
, ETH_ALEN
);
1701 setup
->rx_antenna
= 2 & priv
->rx_diversity_mask
; /* automatic */
1702 setup
->rx_align
= 0;
1703 if (priv
->fw_var
< 0x500) {
1704 setup
->v1
.basic_rate_mask
= cpu_to_le32(priv
->basic_rate_mask
);
1705 memset(setup
->v1
.rts_rates
, 0, 8);
1706 setup
->v1
.rx_addr
= cpu_to_le32(priv
->rx_end
);
1707 setup
->v1
.max_rx
= cpu_to_le16(priv
->rx_mtu
);
1708 setup
->v1
.rxhw
= cpu_to_le16(priv
->rxhw
);
1709 setup
->v1
.wakeup_timer
= cpu_to_le16(priv
->wakeup_timer
);
1710 setup
->v1
.unalloc0
= cpu_to_le16(0);
1712 setup
->v2
.rx_addr
= cpu_to_le32(priv
->rx_end
);
1713 setup
->v2
.max_rx
= cpu_to_le16(priv
->rx_mtu
);
1714 setup
->v2
.rxhw
= cpu_to_le16(priv
->rxhw
);
1715 setup
->v2
.timer
= cpu_to_le16(priv
->wakeup_timer
);
1716 setup
->v2
.truncate
= cpu_to_le16(48896);
1717 setup
->v2
.basic_rate_mask
= cpu_to_le32(priv
->basic_rate_mask
);
1718 setup
->v2
.sbss_offset
= 0;
1719 setup
->v2
.mcast_window
= 0;
1720 setup
->v2
.rx_rssi_threshold
= 0;
1721 setup
->v2
.rx_ed_threshold
= 0;
1722 setup
->v2
.ref_clock
= cpu_to_le32(644245094);
1723 setup
->v2
.lpf_bandwidth
= cpu_to_le16(65535);
1724 setup
->v2
.osc_start_delay
= cpu_to_le16(65535);
1730 static int p54_scan(struct ieee80211_hw
*dev
, u16 mode
, u16 dwell
)
1732 struct p54_common
*priv
= dev
->priv
;
1733 struct sk_buff
*skb
;
1734 struct p54_hdr
*hdr
;
1735 struct p54_scan_head
*head
;
1736 struct p54_iq_autocal_entry
*iq_autocal
;
1737 union p54_scan_body_union
*body
;
1738 struct p54_scan_tail_rate
*rate
;
1739 struct pda_rssi_cal_entry
*rssi
;
1742 int band
= dev
->conf
.channel
->band
;
1743 __le16 freq
= cpu_to_le16(dev
->conf
.channel
->center_freq
);
1745 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*head
) +
1746 2 + sizeof(*iq_autocal
) + sizeof(*body
) +
1747 sizeof(*rate
) + 2 * sizeof(*rssi
),
1748 P54_CONTROL_TYPE_SCAN
, GFP_ATOMIC
);
1752 head
= (struct p54_scan_head
*) skb_put(skb
, sizeof(*head
));
1753 memset(head
->scan_params
, 0, sizeof(head
->scan_params
));
1754 head
->mode
= cpu_to_le16(mode
);
1755 head
->dwell
= cpu_to_le16(dwell
);
1758 if (priv
->rxhw
== PDR_SYNTH_FRONTEND_LONGBOW
) {
1759 __le16
*pa_power_points
= (__le16
*) skb_put(skb
, 2);
1760 *pa_power_points
= cpu_to_le16(0x0c);
1763 iq_autocal
= (void *) skb_put(skb
, sizeof(*iq_autocal
));
1764 for (i
= 0; i
< priv
->iq_autocal_len
; i
++) {
1765 if (priv
->iq_autocal
[i
].freq
!= freq
)
1768 memcpy(iq_autocal
, &priv
->iq_autocal
[i
].params
,
1769 sizeof(struct p54_iq_autocal_entry
));
1772 if (i
== priv
->iq_autocal_len
)
1775 if (priv
->rxhw
== PDR_SYNTH_FRONTEND_LONGBOW
)
1776 body
= (void *) skb_put(skb
, sizeof(body
->longbow
));
1778 body
= (void *) skb_put(skb
, sizeof(body
->normal
));
1780 for (i
= 0; i
< priv
->output_limit
->entries
; i
++) {
1781 __le16
*entry_freq
= (void *) (priv
->output_limit
->data
+
1782 priv
->output_limit
->entry_size
* i
);
1784 if (*entry_freq
!= freq
)
1787 if (priv
->rxhw
== PDR_SYNTH_FRONTEND_LONGBOW
) {
1788 memcpy(&body
->longbow
.power_limits
,
1789 (void *) entry_freq
+ sizeof(__le16
),
1790 priv
->output_limit
->entry_size
);
1792 struct pda_channel_output_limit
*limits
=
1793 (void *) entry_freq
;
1795 body
->normal
.val_barker
= 0x38;
1796 body
->normal
.val_bpsk
= body
->normal
.dup_bpsk
=
1798 body
->normal
.val_qpsk
= body
->normal
.dup_qpsk
=
1800 body
->normal
.val_16qam
= body
->normal
.dup_16qam
=
1802 body
->normal
.val_64qam
= body
->normal
.dup_64qam
=
1807 if (i
== priv
->output_limit
->entries
)
1810 entry
= (void *)(priv
->curve_data
->data
+ priv
->curve_data
->offset
);
1811 for (i
= 0; i
< priv
->curve_data
->entries
; i
++) {
1812 if (*((__le16
*)entry
) != freq
) {
1813 entry
+= priv
->curve_data
->entry_size
;
1817 if (priv
->rxhw
== PDR_SYNTH_FRONTEND_LONGBOW
) {
1818 memcpy(&body
->longbow
.curve_data
,
1819 (void *) entry
+ sizeof(__le16
),
1820 priv
->curve_data
->entry_size
);
1822 struct p54_scan_body
*chan
= &body
->normal
;
1823 struct pda_pa_curve_data
*curve_data
=
1824 (void *) priv
->curve_data
->data
;
1826 entry
+= sizeof(__le16
);
1827 chan
->pa_points_per_curve
= 8;
1828 memset(chan
->curve_data
, 0, sizeof(*chan
->curve_data
));
1829 memcpy(chan
->curve_data
, entry
,
1830 sizeof(struct p54_pa_curve_data_sample
) *
1831 min((u8
)8, curve_data
->points_per_channel
));
1835 if (i
== priv
->curve_data
->entries
)
1838 if ((priv
->fw_var
>= 0x500) && (priv
->fw_var
< 0x509)) {
1839 rate
= (void *) skb_put(skb
, sizeof(*rate
));
1840 rate
->basic_rate_mask
= cpu_to_le32(priv
->basic_rate_mask
);
1841 for (i
= 0; i
< sizeof(rate
->rts_rates
); i
++)
1842 rate
->rts_rates
[i
] = i
;
1845 rssi
= (struct pda_rssi_cal_entry
*) skb_put(skb
, sizeof(*rssi
));
1846 rssi
->mul
= cpu_to_le16(priv
->rssical_db
[band
].mul
);
1847 rssi
->add
= cpu_to_le16(priv
->rssical_db
[band
].add
);
1848 if (priv
->rxhw
== PDR_SYNTH_FRONTEND_LONGBOW
) {
1849 /* Longbow frontend needs ever more */
1850 rssi
= (void *) skb_put(skb
, sizeof(*rssi
));
1851 rssi
->mul
= cpu_to_le16(priv
->rssical_db
[band
].longbow_unkn
);
1852 rssi
->add
= cpu_to_le16(priv
->rssical_db
[band
].longbow_unk2
);
1855 if (priv
->fw_var
>= 0x509) {
1856 rate
= (void *) skb_put(skb
, sizeof(*rate
));
1857 rate
->basic_rate_mask
= cpu_to_le32(priv
->basic_rate_mask
);
1858 for (i
= 0; i
< sizeof(rate
->rts_rates
); i
++)
1859 rate
->rts_rates
[i
] = i
;
1862 hdr
= (struct p54_hdr
*) skb
->data
;
1863 hdr
->len
= cpu_to_le16(skb
->len
- sizeof(*hdr
));
1869 printk(KERN_ERR
"%s: frequency change failed\n", wiphy_name(dev
->wiphy
));
1870 p54_free_skb(dev
, skb
);
1874 static int p54_set_leds(struct ieee80211_hw
*dev
, int mode
, int link
, int act
)
1876 struct p54_common
*priv
= dev
->priv
;
1877 struct sk_buff
*skb
;
1878 struct p54_led
*led
;
1880 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*led
),
1881 P54_CONTROL_TYPE_LED
, GFP_ATOMIC
);
1885 led
= (struct p54_led
*)skb_put(skb
, sizeof(*led
));
1886 led
->mode
= cpu_to_le16(mode
);
1887 led
->led_permanent
= cpu_to_le16(link
);
1888 led
->led_temporary
= cpu_to_le16(act
);
1889 led
->duration
= cpu_to_le16(1000);
1894 #define P54_SET_QUEUE(queue, ai_fs, cw_min, cw_max, _txop) \
1896 queue.aifs = cpu_to_le16(ai_fs); \
1897 queue.cwmin = cpu_to_le16(cw_min); \
1898 queue.cwmax = cpu_to_le16(cw_max); \
1899 queue.txop = cpu_to_le16(_txop); \
1902 static int p54_set_edcf(struct ieee80211_hw
*dev
)
1904 struct p54_common
*priv
= dev
->priv
;
1905 struct sk_buff
*skb
;
1906 struct p54_edcf
*edcf
;
1908 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*edcf
),
1909 P54_CONTROL_TYPE_DCFINIT
, GFP_ATOMIC
);
1913 edcf
= (struct p54_edcf
*)skb_put(skb
, sizeof(*edcf
));
1914 if (priv
->use_short_slot
) {
1917 edcf
->eofpad
= 0x00;
1919 edcf
->slottime
= 20;
1921 edcf
->eofpad
= 0x06;
1923 /* (see prism54/isl_oid.h for further details) */
1924 edcf
->frameburst
= cpu_to_le16(0);
1925 edcf
->round_trip_delay
= cpu_to_le16(0);
1927 memset(edcf
->mapping
, 0, sizeof(edcf
->mapping
));
1928 memcpy(edcf
->queue
, priv
->qos_params
, sizeof(edcf
->queue
));
1933 static int p54_set_ps(struct ieee80211_hw
*dev
)
1935 struct p54_common
*priv
= dev
->priv
;
1936 struct sk_buff
*skb
;
1937 struct p54_psm
*psm
;
1941 if (dev
->conf
.flags
& IEEE80211_CONF_PS
)
1942 mode
= P54_PSM
| P54_PSM_DTIM
| P54_PSM_MCBC
;
1946 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*psm
),
1947 P54_CONTROL_TYPE_PSM
, GFP_ATOMIC
);
1951 psm
= (struct p54_psm
*)skb_put(skb
, sizeof(*psm
));
1952 psm
->mode
= cpu_to_le16(mode
);
1953 psm
->aid
= cpu_to_le16(priv
->aid
);
1954 for (i
= 0; i
< ARRAY_SIZE(psm
->intervals
); i
++) {
1955 psm
->intervals
[i
].interval
=
1956 cpu_to_le16(dev
->conf
.listen_interval
);
1957 psm
->intervals
[i
].periods
= cpu_to_le16(1);
1960 psm
->beacon_rssi_skip_max
= 60;
1961 psm
->rssi_delta_threshold
= 0;
1969 static int p54_beacon_tim(struct sk_buff
*skb
)
1972 * the good excuse for this mess is ... the firmware.
1973 * The dummy TIM MUST be at the end of the beacon frame,
1974 * because it'll be overwritten!
1977 struct ieee80211_mgmt
*mgmt
= (void *)skb
->data
;
1980 if (skb
->len
<= sizeof(mgmt
))
1983 pos
= (u8
*)mgmt
->u
.beacon
.variable
;
1984 end
= skb
->data
+ skb
->len
;
1986 if (pos
+ 2 + pos
[1] > end
)
1989 if (pos
[0] == WLAN_EID_TIM
) {
1990 u8 dtim_len
= pos
[1];
1991 u8 dtim_period
= pos
[3];
1992 u8
*next
= pos
+ 2 + dtim_len
;
1997 memmove(pos
, next
, end
- next
);
2000 skb_trim(skb
, skb
->len
- (dtim_len
- 3));
2002 pos
= end
- (dtim_len
+ 2);
2004 /* add the dummy at the end */
2005 pos
[0] = WLAN_EID_TIM
;
2008 pos
[3] = dtim_period
;
2017 static int p54_beacon_update(struct ieee80211_hw
*dev
,
2018 struct ieee80211_vif
*vif
)
2020 struct p54_common
*priv
= dev
->priv
;
2021 struct sk_buff
*beacon
;
2024 if (priv
->cached_beacon
) {
2025 p54_tx_cancel(dev
, priv
->cached_beacon
);
2026 /* wait for the last beacon the be freed */
2030 beacon
= ieee80211_beacon_get(dev
, vif
);
2033 ret
= p54_beacon_tim(beacon
);
2036 ret
= p54_tx(dev
, beacon
);
2039 priv
->cached_beacon
= beacon
;
2040 priv
->tsf_high32
= 0;
2041 priv
->tsf_low32
= 0;
2046 static int p54_start(struct ieee80211_hw
*dev
)
2048 struct p54_common
*priv
= dev
->priv
;
2051 mutex_lock(&priv
->conf_mutex
);
2052 err
= priv
->open(dev
);
2055 P54_SET_QUEUE(priv
->qos_params
[0], 0x0002, 0x0003, 0x0007, 47);
2056 P54_SET_QUEUE(priv
->qos_params
[1], 0x0002, 0x0007, 0x000f, 94);
2057 P54_SET_QUEUE(priv
->qos_params
[2], 0x0003, 0x000f, 0x03ff, 0);
2058 P54_SET_QUEUE(priv
->qos_params
[3], 0x0007, 0x000f, 0x03ff, 0);
2059 err
= p54_set_edcf(dev
);
2063 memset(priv
->bssid
, ~0, ETH_ALEN
);
2064 priv
->mode
= NL80211_IFTYPE_MONITOR
;
2065 err
= p54_setup_mac(dev
);
2067 priv
->mode
= NL80211_IFTYPE_UNSPECIFIED
;
2071 queue_delayed_work(dev
->workqueue
, &priv
->work
, 0);
2074 mutex_unlock(&priv
->conf_mutex
);
2078 static void p54_stop(struct ieee80211_hw
*dev
)
2080 struct p54_common
*priv
= dev
->priv
;
2081 struct sk_buff
*skb
;
2083 mutex_lock(&priv
->conf_mutex
);
2084 priv
->mode
= NL80211_IFTYPE_UNSPECIFIED
;
2085 cancel_delayed_work_sync(&priv
->work
);
2086 if (priv
->cached_beacon
)
2087 p54_tx_cancel(dev
, priv
->cached_beacon
);
2090 while ((skb
= skb_dequeue(&priv
->tx_queue
)))
2092 priv
->cached_beacon
= NULL
;
2093 priv
->tsf_high32
= priv
->tsf_low32
= 0;
2094 mutex_unlock(&priv
->conf_mutex
);
2097 static int p54_add_interface(struct ieee80211_hw
*dev
,
2098 struct ieee80211_if_init_conf
*conf
)
2100 struct p54_common
*priv
= dev
->priv
;
2102 mutex_lock(&priv
->conf_mutex
);
2103 if (priv
->mode
!= NL80211_IFTYPE_MONITOR
) {
2104 mutex_unlock(&priv
->conf_mutex
);
2108 switch (conf
->type
) {
2109 case NL80211_IFTYPE_STATION
:
2110 case NL80211_IFTYPE_ADHOC
:
2111 case NL80211_IFTYPE_AP
:
2112 case NL80211_IFTYPE_MESH_POINT
:
2113 priv
->mode
= conf
->type
;
2116 mutex_unlock(&priv
->conf_mutex
);
2120 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
2122 p54_set_leds(dev
, 1, 0, 0);
2123 mutex_unlock(&priv
->conf_mutex
);
2127 static void p54_remove_interface(struct ieee80211_hw
*dev
,
2128 struct ieee80211_if_init_conf
*conf
)
2130 struct p54_common
*priv
= dev
->priv
;
2132 mutex_lock(&priv
->conf_mutex
);
2133 if (priv
->cached_beacon
)
2134 p54_tx_cancel(dev
, priv
->cached_beacon
);
2135 priv
->mode
= NL80211_IFTYPE_MONITOR
;
2136 memset(priv
->mac_addr
, 0, ETH_ALEN
);
2137 memset(priv
->bssid
, 0, ETH_ALEN
);
2139 mutex_unlock(&priv
->conf_mutex
);
2142 static int p54_config(struct ieee80211_hw
*dev
, u32 changed
)
2145 struct p54_common
*priv
= dev
->priv
;
2146 struct ieee80211_conf
*conf
= &dev
->conf
;
2148 mutex_lock(&priv
->conf_mutex
);
2149 if (changed
& IEEE80211_CONF_CHANGE_POWER
)
2150 priv
->output_power
= conf
->power_level
<< 2;
2151 if (changed
& IEEE80211_CONF_CHANGE_RADIO_ENABLED
) {
2152 ret
= p54_setup_mac(dev
);
2156 if (changed
& IEEE80211_CONF_CHANGE_CHANNEL
) {
2157 ret
= p54_scan(dev
, P54_SCAN_EXIT
, 0);
2161 if (changed
& IEEE80211_CONF_CHANGE_PS
) {
2162 ret
= p54_set_ps(dev
);
2168 mutex_unlock(&priv
->conf_mutex
);
2172 static int p54_config_interface(struct ieee80211_hw
*dev
,
2173 struct ieee80211_vif
*vif
,
2174 struct ieee80211_if_conf
*conf
)
2176 struct p54_common
*priv
= dev
->priv
;
2179 mutex_lock(&priv
->conf_mutex
);
2180 if (conf
->changed
& IEEE80211_IFCC_BSSID
) {
2181 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
2182 ret
= p54_setup_mac(dev
);
2187 if (conf
->changed
& IEEE80211_IFCC_BEACON
) {
2188 ret
= p54_scan(dev
, P54_SCAN_EXIT
, 0);
2191 ret
= p54_setup_mac(dev
);
2194 ret
= p54_beacon_update(dev
, vif
);
2197 ret
= p54_set_edcf(dev
);
2202 ret
= p54_set_leds(dev
, 1, !is_multicast_ether_addr(priv
->bssid
), 0);
2205 mutex_unlock(&priv
->conf_mutex
);
2209 static void p54_configure_filter(struct ieee80211_hw
*dev
,
2210 unsigned int changed_flags
,
2211 unsigned int *total_flags
,
2212 int mc_count
, struct dev_mc_list
*mclist
)
2214 struct p54_common
*priv
= dev
->priv
;
2216 *total_flags
&= FIF_PROMISC_IN_BSS
|
2218 (*total_flags
& FIF_PROMISC_IN_BSS
?
2221 priv
->filter_flags
= *total_flags
;
2223 if (changed_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
))
2227 static int p54_conf_tx(struct ieee80211_hw
*dev
, u16 queue
,
2228 const struct ieee80211_tx_queue_params
*params
)
2230 struct p54_common
*priv
= dev
->priv
;
2233 mutex_lock(&priv
->conf_mutex
);
2234 if ((params
) && !(queue
> 4)) {
2235 P54_SET_QUEUE(priv
->qos_params
[queue
], params
->aifs
,
2236 params
->cw_min
, params
->cw_max
, params
->txop
);
2237 ret
= p54_set_edcf(dev
);
2240 mutex_unlock(&priv
->conf_mutex
);
2244 static int p54_init_xbow_synth(struct ieee80211_hw
*dev
)
2246 struct p54_common
*priv
= dev
->priv
;
2247 struct sk_buff
*skb
;
2248 struct p54_xbow_synth
*xbow
;
2250 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*xbow
),
2251 P54_CONTROL_TYPE_XBOW_SYNTH_CFG
, GFP_KERNEL
);
2255 xbow
= (struct p54_xbow_synth
*)skb_put(skb
, sizeof(*xbow
));
2256 xbow
->magic1
= cpu_to_le16(0x1);
2257 xbow
->magic2
= cpu_to_le16(0x2);
2258 xbow
->freq
= cpu_to_le16(5390);
2259 memset(xbow
->padding
, 0, sizeof(xbow
->padding
));
2264 static void p54_work(struct work_struct
*work
)
2266 struct p54_common
*priv
= container_of(work
, struct p54_common
,
2268 struct ieee80211_hw
*dev
= priv
->hw
;
2269 struct sk_buff
*skb
;
2271 if (unlikely(priv
->mode
== NL80211_IFTYPE_UNSPECIFIED
))
2275 * TODO: walk through tx_queue and do the following tasks
2276 * 1. initiate bursts.
2277 * 2. cancel stuck frames / reset the device if necessary.
2280 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL
,
2281 sizeof(struct p54_statistics
),
2282 P54_CONTROL_TYPE_STAT_READBACK
, GFP_KERNEL
);
2289 static int p54_get_stats(struct ieee80211_hw
*dev
,
2290 struct ieee80211_low_level_stats
*stats
)
2292 struct p54_common
*priv
= dev
->priv
;
2294 memcpy(stats
, &priv
->stats
, sizeof(*stats
));
2298 static int p54_get_tx_stats(struct ieee80211_hw
*dev
,
2299 struct ieee80211_tx_queue_stats
*stats
)
2301 struct p54_common
*priv
= dev
->priv
;
2303 memcpy(stats
, &priv
->tx_stats
[P54_QUEUE_DATA
],
2304 sizeof(stats
[0]) * dev
->queues
);
2308 static void p54_bss_info_changed(struct ieee80211_hw
*dev
,
2309 struct ieee80211_vif
*vif
,
2310 struct ieee80211_bss_conf
*info
,
2313 struct p54_common
*priv
= dev
->priv
;
2315 if (changed
& BSS_CHANGED_ERP_SLOT
) {
2316 priv
->use_short_slot
= info
->use_short_slot
;
2319 if (changed
& BSS_CHANGED_BASIC_RATES
) {
2320 if (dev
->conf
.channel
->band
== IEEE80211_BAND_5GHZ
)
2321 priv
->basic_rate_mask
= (info
->basic_rates
<< 4);
2323 priv
->basic_rate_mask
= info
->basic_rates
;
2325 if (priv
->fw_var
>= 0x500)
2326 p54_scan(dev
, P54_SCAN_EXIT
, 0);
2328 if (changed
& BSS_CHANGED_ASSOC
) {
2330 priv
->aid
= info
->aid
;
2331 priv
->wakeup_timer
= info
->beacon_int
*
2332 info
->dtim_period
* 5;
2339 static int p54_set_key(struct ieee80211_hw
*dev
, enum set_key_cmd cmd
,
2340 struct ieee80211_vif
*vif
, struct ieee80211_sta
*sta
,
2341 struct ieee80211_key_conf
*key
)
2343 struct p54_common
*priv
= dev
->priv
;
2344 struct sk_buff
*skb
;
2345 struct p54_keycache
*rxkey
;
2348 if (modparam_nohwcrypt
)
2351 if (cmd
== DISABLE_KEY
)
2356 if (!(priv
->privacy_caps
& (BR_DESC_PRIV_CAP_MICHAEL
|
2357 BR_DESC_PRIV_CAP_TKIP
)))
2359 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2360 algo
= P54_CRYPTO_TKIPMICHAEL
;
2363 if (!(priv
->privacy_caps
& BR_DESC_PRIV_CAP_WEP
))
2365 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2366 algo
= P54_CRYPTO_WEP
;
2369 if (!(priv
->privacy_caps
& BR_DESC_PRIV_CAP_AESCCMP
))
2371 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2372 algo
= P54_CRYPTO_AESCCMP
;
2379 if (key
->keyidx
> priv
->rx_keycache_size
) {
2381 * The device supports the choosen algorithm, but the firmware
2382 * does not provide enough key slots to store all of them.
2383 * So, incoming frames have to be decoded by the mac80211 stack,
2384 * but we can still offload encryption for outgoing frames.
2390 mutex_lock(&priv
->conf_mutex
);
2391 skb
= p54_alloc_skb(dev
, P54_HDR_FLAG_CONTROL_OPSET
, sizeof(*rxkey
),
2392 P54_CONTROL_TYPE_RX_KEYCACHE
, GFP_ATOMIC
);
2394 mutex_unlock(&priv
->conf_mutex
);
2398 /* TODO: some devices have 4 more free slots for rx keys */
2399 rxkey
= (struct p54_keycache
*)skb_put(skb
, sizeof(*rxkey
));
2400 rxkey
->entry
= key
->keyidx
;
2401 rxkey
->key_id
= key
->keyidx
;
2402 rxkey
->key_type
= algo
;
2404 memcpy(rxkey
->mac
, sta
->addr
, ETH_ALEN
);
2406 memset(rxkey
->mac
, ~0, ETH_ALEN
);
2407 if (key
->alg
!= ALG_TKIP
) {
2408 rxkey
->key_len
= min((u8
)16, key
->keylen
);
2409 memcpy(rxkey
->key
, key
->key
, rxkey
->key_len
);
2411 rxkey
->key_len
= 24;
2412 memcpy(rxkey
->key
, key
->key
, 16);
2413 memcpy(&(rxkey
->key
[16]), &(key
->key
2414 [NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
]), 8);
2418 mutex_unlock(&priv
->conf_mutex
);
2422 static const struct ieee80211_ops p54_ops
= {
2426 .add_interface
= p54_add_interface
,
2427 .remove_interface
= p54_remove_interface
,
2428 .set_tim
= p54_set_tim
,
2429 .sta_notify
= p54_sta_notify
,
2430 .set_key
= p54_set_key
,
2431 .config
= p54_config
,
2432 .config_interface
= p54_config_interface
,
2433 .bss_info_changed
= p54_bss_info_changed
,
2434 .configure_filter
= p54_configure_filter
,
2435 .conf_tx
= p54_conf_tx
,
2436 .get_stats
= p54_get_stats
,
2437 .get_tx_stats
= p54_get_tx_stats
2440 struct ieee80211_hw
*p54_init_common(size_t priv_data_len
)
2442 struct ieee80211_hw
*dev
;
2443 struct p54_common
*priv
;
2445 dev
= ieee80211_alloc_hw(priv_data_len
, &p54_ops
);
2451 priv
->mode
= NL80211_IFTYPE_UNSPECIFIED
;
2452 priv
->basic_rate_mask
= 0x15f;
2453 skb_queue_head_init(&priv
->tx_queue
);
2454 dev
->flags
= IEEE80211_HW_RX_INCLUDES_FCS
|
2455 IEEE80211_HW_SIGNAL_DBM
|
2456 IEEE80211_HW_NOISE_DBM
;
2458 dev
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
2459 BIT(NL80211_IFTYPE_ADHOC
) |
2460 BIT(NL80211_IFTYPE_AP
) |
2461 BIT(NL80211_IFTYPE_MESH_POINT
);
2463 dev
->channel_change_time
= 1000; /* TODO: find actual value */
2464 priv
->tx_stats
[P54_QUEUE_BEACON
].limit
= 1;
2465 priv
->tx_stats
[P54_QUEUE_FWSCAN
].limit
= 1;
2466 priv
->tx_stats
[P54_QUEUE_MGMT
].limit
= 3;
2467 priv
->tx_stats
[P54_QUEUE_CAB
].limit
= 3;
2468 priv
->tx_stats
[P54_QUEUE_DATA
].limit
= 5;
2472 * We support at most 8 tries no matter which rate they're at,
2473 * we cannot support max_rates * max_rate_tries as we set it
2474 * here, but setting it correctly to 4/2 or so would limit us
2475 * artificially if the RC algorithm wants just two rates, so
2476 * let's say 4/7, we'll redistribute it at TX time, see the
2480 dev
->max_rate_tries
= 7;
2481 dev
->extra_tx_headroom
= sizeof(struct p54_hdr
) + 4 +
2482 sizeof(struct p54_tx_data
);
2484 mutex_init(&priv
->conf_mutex
);
2485 init_completion(&priv
->eeprom_comp
);
2486 INIT_DELAYED_WORK(&priv
->work
, p54_work
);
2490 EXPORT_SYMBOL_GPL(p54_init_common
);
2492 void p54_free_common(struct ieee80211_hw
*dev
)
2494 struct p54_common
*priv
= dev
->priv
;
2495 kfree(priv
->iq_autocal
);
2496 kfree(priv
->output_limit
);
2497 kfree(priv
->curve_data
);
2499 EXPORT_SYMBOL_GPL(p54_free_common
);
2501 static int __init
p54_init(void)
2506 static void __exit
p54_exit(void)
2510 module_init(p54_init
);
2511 module_exit(p54_exit
);