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>
24 #ifdef CONFIG_MAC80211_LEDS
25 #include <linux/leds.h>
26 #endif /* CONFIG_MAC80211_LEDS */
29 #include "p54common.h"
31 static int modparam_nohwcrypt;
32 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
33 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
34 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
35 MODULE_DESCRIPTION("Softmac Prism54 common code");
36 MODULE_LICENSE("GPL");
37 MODULE_ALIAS("prism54common");
39 static struct ieee80211_rate p54_bgrates[] = {
40 { .bitrate = 10, .hw_value = 0, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
41 { .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
42 { .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
43 { .bitrate = 110, .hw_value = 3, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
44 { .bitrate = 60, .hw_value = 4, },
45 { .bitrate = 90, .hw_value = 5, },
46 { .bitrate = 120, .hw_value = 6, },
47 { .bitrate = 180, .hw_value = 7, },
48 { .bitrate = 240, .hw_value = 8, },
49 { .bitrate = 360, .hw_value = 9, },
50 { .bitrate = 480, .hw_value = 10, },
51 { .bitrate = 540, .hw_value = 11, },
54 static struct ieee80211_channel p54_bgchannels[] = {
55 { .center_freq = 2412, .hw_value = 1, },
56 { .center_freq = 2417, .hw_value = 2, },
57 { .center_freq = 2422, .hw_value = 3, },
58 { .center_freq = 2427, .hw_value = 4, },
59 { .center_freq = 2432, .hw_value = 5, },
60 { .center_freq = 2437, .hw_value = 6, },
61 { .center_freq = 2442, .hw_value = 7, },
62 { .center_freq = 2447, .hw_value = 8, },
63 { .center_freq = 2452, .hw_value = 9, },
64 { .center_freq = 2457, .hw_value = 10, },
65 { .center_freq = 2462, .hw_value = 11, },
66 { .center_freq = 2467, .hw_value = 12, },
67 { .center_freq = 2472, .hw_value = 13, },
68 { .center_freq = 2484, .hw_value = 14, },
71 static struct ieee80211_supported_band band_2GHz = {
72 .channels = p54_bgchannels,
73 .n_channels = ARRAY_SIZE(p54_bgchannels),
74 .bitrates = p54_bgrates,
75 .n_bitrates = ARRAY_SIZE(p54_bgrates),
78 static struct ieee80211_rate p54_arates[] = {
79 { .bitrate = 60, .hw_value = 4, },
80 { .bitrate = 90, .hw_value = 5, },
81 { .bitrate = 120, .hw_value = 6, },
82 { .bitrate = 180, .hw_value = 7, },
83 { .bitrate = 240, .hw_value = 8, },
84 { .bitrate = 360, .hw_value = 9, },
85 { .bitrate = 480, .hw_value = 10, },
86 { .bitrate = 540, .hw_value = 11, },
89 static struct ieee80211_channel p54_achannels[] = {
90 { .center_freq = 4920 },
91 { .center_freq = 4940 },
92 { .center_freq = 4960 },
93 { .center_freq = 4980 },
94 { .center_freq = 5040 },
95 { .center_freq = 5060 },
96 { .center_freq = 5080 },
97 { .center_freq = 5170 },
98 { .center_freq = 5180 },
99 { .center_freq = 5190 },
100 { .center_freq = 5200 },
101 { .center_freq = 5210 },
102 { .center_freq = 5220 },
103 { .center_freq = 5230 },
104 { .center_freq = 5240 },
105 { .center_freq = 5260 },
106 { .center_freq = 5280 },
107 { .center_freq = 5300 },
108 { .center_freq = 5320 },
109 { .center_freq = 5500 },
110 { .center_freq = 5520 },
111 { .center_freq = 5540 },
112 { .center_freq = 5560 },
113 { .center_freq = 5580 },
114 { .center_freq = 5600 },
115 { .center_freq = 5620 },
116 { .center_freq = 5640 },
117 { .center_freq = 5660 },
118 { .center_freq = 5680 },
119 { .center_freq = 5700 },
120 { .center_freq = 5745 },
121 { .center_freq = 5765 },
122 { .center_freq = 5785 },
123 { .center_freq = 5805 },
124 { .center_freq = 5825 },
127 static struct ieee80211_supported_band band_5GHz = {
128 .channels = p54_achannels,
129 .n_channels = ARRAY_SIZE(p54_achannels),
130 .bitrates = p54_arates,
131 .n_bitrates = ARRAY_SIZE(p54_arates),
134 int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
136 struct p54_common *priv = dev->priv;
137 struct bootrec_exp_if *exp_if;
138 struct bootrec *bootrec;
139 u32 *data = (u32 *)fw->data;
140 u32 *end_data = (u32 *)fw->data + (fw->size >> 2);
141 u8 *fw_version = NULL;
149 while (data < end_data && *data)
152 while (data < end_data && !*data)
155 bootrec = (struct bootrec *) data;
157 while (bootrec->data <= end_data &&
158 (bootrec->data + (len = le32_to_cpu(bootrec->len))) <= end_data) {
159 u32 code = le32_to_cpu(bootrec->code);
161 case BR_CODE_COMPONENT_ID:
162 priv->fw_interface = be32_to_cpup((__be32 *)
164 switch (priv->fw_interface) {
168 char *iftype = (char *)bootrec->data;
169 printk(KERN_INFO "%s: p54 detected a LM%c%c "
171 wiphy_name(dev->wiphy),
172 iftype[2], iftype[3]);
177 printk(KERN_ERR "%s: unsupported firmware\n",
178 wiphy_name(dev->wiphy));
182 case BR_CODE_COMPONENT_VERSION:
183 /* 24 bytes should be enough for all firmwares */
184 if (strnlen((unsigned char*)bootrec->data, 24) < 24)
185 fw_version = (unsigned char*)bootrec->data;
187 case BR_CODE_DESCR: {
188 struct bootrec_desc *desc =
189 (struct bootrec_desc *)bootrec->data;
190 priv->rx_start = le32_to_cpu(desc->rx_start);
191 /* FIXME add sanity checking */
192 priv->rx_end = le32_to_cpu(desc->rx_end) - 0x3500;
193 priv->headroom = desc->headroom;
194 priv->tailroom = desc->tailroom;
195 priv->privacy_caps = desc->privacy_caps;
196 priv->rx_keycache_size = desc->rx_keycache_size;
197 if (le32_to_cpu(bootrec->len) == 11)
198 priv->rx_mtu = le16_to_cpu(desc->rx_mtu);
200 priv->rx_mtu = (size_t)
201 0x620 - priv->tx_hdr_len;
202 maxlen = priv->tx_hdr_len + /* USB devices */
203 sizeof(struct p54_rx_data) +
204 4 + /* rx alignment */
205 IEEE80211_MAX_FRAG_THRESHOLD;
206 if (priv->rx_mtu > maxlen && PAGE_SIZE == 4096) {
207 printk(KERN_INFO "p54: rx_mtu reduced from %d "
208 "to %d\n", priv->rx_mtu,
210 priv->rx_mtu = maxlen;
214 case BR_CODE_EXPOSED_IF:
215 exp_if = (struct bootrec_exp_if *) bootrec->data;
216 for (i = 0; i < (len * sizeof(*exp_if) / 4); i++)
217 if (exp_if[i].if_id == cpu_to_le16(0x1a))
218 priv->fw_var = le16_to_cpu(exp_if[i].variant);
220 case BR_CODE_DEPENDENT_IF:
222 case BR_CODE_END_OF_BRA:
223 case LEGACY_BR_CODE_END_OF_BRA:
229 bootrec = (struct bootrec *)&bootrec->data[len];
233 printk(KERN_INFO "%s: FW rev %s - Softmac protocol %x.%x\n",
234 wiphy_name(dev->wiphy), fw_version,
235 priv->fw_var >> 8, priv->fw_var & 0xff);
237 if (priv->fw_var < 0x500)
238 printk(KERN_INFO "%s: you are using an obsolete firmware. "
239 "visit http://wireless.kernel.org/en/users/Drivers/p54 "
240 "and grab one for \"kernel >= 2.6.28\"!\n",
241 wiphy_name(dev->wiphy));
243 if (priv->fw_var >= 0x300) {
244 /* Firmware supports QoS, use it! */
245 priv->tx_stats[P54_QUEUE_AC_VO].limit = 3;
246 priv->tx_stats[P54_QUEUE_AC_VI].limit = 4;
247 priv->tx_stats[P54_QUEUE_AC_BE].limit = 3;
248 priv->tx_stats[P54_QUEUE_AC_BK].limit = 2;
249 dev->queues = P54_QUEUE_AC_NUM;
252 if (!modparam_nohwcrypt)
253 printk(KERN_INFO "%s: cryptographic accelerator "
254 "WEP:%s, TKIP:%s, CCMP:%s\n",
255 wiphy_name(dev->wiphy),
256 (priv->privacy_caps & BR_DESC_PRIV_CAP_WEP) ? "YES" :
257 "no", (priv->privacy_caps & (BR_DESC_PRIV_CAP_TKIP |
258 BR_DESC_PRIV_CAP_MICHAEL)) ? "YES" : "no",
259 (priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP) ?
264 EXPORT_SYMBOL_GPL(p54_parse_firmware);
266 static int p54_convert_rev0(struct ieee80211_hw *dev,
267 struct pda_pa_curve_data *curve_data)
269 struct p54_common *priv = dev->priv;
270 struct p54_pa_curve_data_sample *dst;
271 struct pda_pa_curve_data_sample_rev0 *src;
272 size_t cd_len = sizeof(*curve_data) +
273 (curve_data->points_per_channel*sizeof(*dst) + 2) *
274 curve_data->channels;
276 void *source, *target;
278 priv->curve_data = kmalloc(sizeof(*priv->curve_data) + cd_len,
280 if (!priv->curve_data)
283 priv->curve_data->entries = curve_data->channels;
284 priv->curve_data->entry_size = sizeof(__le16) +
285 sizeof(*dst) * curve_data->points_per_channel;
286 priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data);
287 priv->curve_data->len = cd_len;
288 memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data));
289 source = curve_data->data;
290 target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data;
291 for (i = 0; i < curve_data->channels; i++) {
292 __le16 *freq = source;
293 source += sizeof(__le16);
294 *((__le16 *)target) = *freq;
295 target += sizeof(__le16);
296 for (j = 0; j < curve_data->points_per_channel; j++) {
300 dst->rf_power = src->rf_power;
301 dst->pa_detector = src->pa_detector;
302 dst->data_64qam = src->pcv;
303 /* "invent" the points for the other modulations */
304 #define SUB(x,y) (u8)((x) - (y)) > (x) ? 0 : (x) - (y)
305 dst->data_16qam = SUB(src->pcv, 12);
306 dst->data_qpsk = SUB(dst->data_16qam, 12);
307 dst->data_bpsk = SUB(dst->data_qpsk, 12);
308 dst->data_barker = SUB(dst->data_bpsk, 14);
310 target += sizeof(*dst);
311 source += sizeof(*src);
318 static int p54_convert_rev1(struct ieee80211_hw *dev,
319 struct pda_pa_curve_data *curve_data)
321 struct p54_common *priv = dev->priv;
322 struct p54_pa_curve_data_sample *dst;
323 struct pda_pa_curve_data_sample_rev1 *src;
324 size_t cd_len = sizeof(*curve_data) +
325 (curve_data->points_per_channel*sizeof(*dst) + 2) *
326 curve_data->channels;
328 void *source, *target;
330 priv->curve_data = kzalloc(cd_len + sizeof(*priv->curve_data),
332 if (!priv->curve_data)
335 priv->curve_data->entries = curve_data->channels;
336 priv->curve_data->entry_size = sizeof(__le16) +
337 sizeof(*dst) * curve_data->points_per_channel;
338 priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data);
339 priv->curve_data->len = cd_len;
340 memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data));
341 source = curve_data->data;
342 target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data;
343 for (i = 0; i < curve_data->channels; i++) {
344 __le16 *freq = source;
345 source += sizeof(__le16);
346 *((__le16 *)target) = *freq;
347 target += sizeof(__le16);
348 for (j = 0; j < curve_data->points_per_channel; j++) {
349 memcpy(target, source, sizeof(*src));
351 target += sizeof(*dst);
352 source += sizeof(*src);
360 static const char *p54_rf_chips[] = { "NULL", "Duette3", "Duette2",
361 "Frisbee", "Xbow", "Longbow", "NULL", "NULL" };
362 static int p54_init_xbow_synth(struct ieee80211_hw *dev);
364 static void p54_parse_rssical(struct ieee80211_hw *dev, void *data, int len,
367 struct p54_common *priv = dev->priv;
368 int offset = (type == PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) ? 2 : 0;
369 int entry_size = sizeof(struct pda_rssi_cal_entry) + offset;
370 int num_entries = (type == PDR_RSSI_LINEAR_APPROXIMATION) ? 1 : 2;
373 if (len != (entry_size * num_entries)) {
374 printk(KERN_ERR "%s: unknown rssi calibration data packing "
375 " type:(%x) len:%d.\n",
376 wiphy_name(dev->wiphy), type, len);
378 print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE,
381 printk(KERN_ERR "%s: please report this issue.\n",
382 wiphy_name(dev->wiphy));
386 for (i = 0; i < num_entries; i++) {
387 struct pda_rssi_cal_entry *cal = data +
388 (offset + i * entry_size);
389 priv->rssical_db[i].mul = (s16) le16_to_cpu(cal->mul);
390 priv->rssical_db[i].add = (s16) le16_to_cpu(cal->add);
394 static void p54_parse_default_country(struct ieee80211_hw *dev,
397 struct pda_country *country;
399 if (len != sizeof(*country)) {
400 printk(KERN_ERR "%s: found possible invalid default country "
401 "eeprom entry. (entry size: %d)\n",
402 wiphy_name(dev->wiphy), len);
404 print_hex_dump_bytes("country:", DUMP_PREFIX_NONE,
407 printk(KERN_ERR "%s: please report this issue.\n",
408 wiphy_name(dev->wiphy));
412 country = (struct pda_country *) data;
413 if (country->flags == PDR_COUNTRY_CERT_CODE_PSEUDO)
414 regulatory_hint(dev->wiphy, country->alpha2);
417 * write a shared/common function that converts
418 * "Regulatory domain codes" (802.11-2007 14.8.2.2)
419 * into ISO/IEC 3166-1 alpha2 for regulatory_hint.
424 static int p54_convert_output_limits(struct ieee80211_hw *dev,
425 u8 *data, size_t len)
427 struct p54_common *priv = dev->priv;
433 printk(KERN_ERR "%s: unknown output power db revision:%x\n",
434 wiphy_name(dev->wiphy), data[0]);
438 if (2 + data[1] * sizeof(struct pda_channel_output_limit) > len)
441 priv->output_limit = kmalloc(data[1] *
442 sizeof(struct pda_channel_output_limit) +
443 sizeof(*priv->output_limit), GFP_KERNEL);
445 if (!priv->output_limit)
448 priv->output_limit->offset = 0;
449 priv->output_limit->entries = data[1];
450 priv->output_limit->entry_size =
451 sizeof(struct pda_channel_output_limit);
452 priv->output_limit->len = priv->output_limit->entry_size *
453 priv->output_limit->entries +
454 priv->output_limit->offset;
456 memcpy(priv->output_limit->data, &data[2],
457 data[1] * sizeof(struct pda_channel_output_limit));
462 static struct p54_cal_database *p54_convert_db(struct pda_custom_wrapper *src,
465 struct p54_cal_database *dst;
466 size_t payload_len, entries, entry_size, offset;
468 payload_len = le16_to_cpu(src->len);
469 entries = le16_to_cpu(src->entries);
470 entry_size = le16_to_cpu(src->entry_size);
471 offset = le16_to_cpu(src->offset);
472 if (((entries * entry_size + offset) != payload_len) ||
473 (payload_len + sizeof(*src) != total_len))
476 dst = kmalloc(sizeof(*dst) + payload_len, GFP_KERNEL);
480 dst->entries = entries;
481 dst->entry_size = entry_size;
482 dst->offset = offset;
483 dst->len = payload_len;
485 memcpy(dst->data, src->data, payload_len);
489 int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
491 struct p54_common *priv = dev->priv;
492 struct eeprom_pda_wrap *wrap = NULL;
493 struct pda_entry *entry;
494 unsigned int data_len, entry_len;
497 u8 *end = (u8 *)eeprom + len;
500 wrap = (struct eeprom_pda_wrap *) eeprom;
501 entry = (void *)wrap->data + le16_to_cpu(wrap->len);
503 /* verify that at least the entry length/code fits */
504 while ((u8 *)entry <= end - sizeof(*entry)) {
505 entry_len = le16_to_cpu(entry->len);
506 data_len = ((entry_len - 1) << 1);
508 /* abort if entry exceeds whole structure */
509 if ((u8 *)entry + sizeof(*entry) + data_len > end)
512 switch (le16_to_cpu(entry->code)) {
513 case PDR_MAC_ADDRESS:
514 if (data_len != ETH_ALEN)
516 SET_IEEE80211_PERM_ADDR(dev, entry->data);
518 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS:
519 if (priv->output_limit)
521 err = p54_convert_output_limits(dev, entry->data,
526 case PDR_PRISM_PA_CAL_CURVE_DATA: {
527 struct pda_pa_curve_data *curve_data =
528 (struct pda_pa_curve_data *)entry->data;
529 if (data_len < sizeof(*curve_data)) {
534 switch (curve_data->cal_method_rev) {
536 err = p54_convert_rev0(dev, curve_data);
539 err = p54_convert_rev1(dev, curve_data);
542 printk(KERN_ERR "%s: unknown curve data "
544 wiphy_name(dev->wiphy),
545 curve_data->cal_method_rev);
553 case PDR_PRISM_ZIF_TX_IQ_CALIBRATION:
554 priv->iq_autocal = kmalloc(data_len, GFP_KERNEL);
555 if (!priv->iq_autocal) {
560 memcpy(priv->iq_autocal, entry->data, data_len);
561 priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry);
563 case PDR_DEFAULT_COUNTRY:
564 p54_parse_default_country(dev, entry->data, data_len);
566 case PDR_INTERFACE_LIST:
568 while ((u8 *)tmp < entry->data + data_len) {
569 struct bootrec_exp_if *exp_if = tmp;
570 if (le16_to_cpu(exp_if->if_id) == 0xf)
571 synth = le16_to_cpu(exp_if->variant);
572 tmp += sizeof(struct bootrec_exp_if);
575 case PDR_HARDWARE_PLATFORM_COMPONENT_ID:
578 priv->version = *(u8 *)(entry->data + 1);
580 case PDR_RSSI_LINEAR_APPROXIMATION:
581 case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND:
582 case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED:
583 p54_parse_rssical(dev, entry->data, data_len,
584 le16_to_cpu(entry->code));
586 case PDR_RSSI_LINEAR_APPROXIMATION_CUSTOM: {
587 __le16 *src = (void *) entry->data;
588 s16 *dst = (void *) &priv->rssical_db;
591 if (data_len != sizeof(priv->rssical_db)) {
595 for (i = 0; i < sizeof(priv->rssical_db) /
597 *(dst++) = (s16) le16_to_cpu(*(src++));
600 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS_CUSTOM: {
601 struct pda_custom_wrapper *pda = (void *) entry->data;
602 if (priv->output_limit || data_len < sizeof(*pda))
604 priv->output_limit = p54_convert_db(pda, data_len);
607 case PDR_PRISM_PA_CAL_CURVE_DATA_CUSTOM: {
608 struct pda_custom_wrapper *pda = (void *) entry->data;
609 if (priv->curve_data || data_len < sizeof(*pda))
611 priv->curve_data = p54_convert_db(pda, data_len);
615 /* make it overrun */
618 case PDR_MANUFACTURING_PART_NUMBER:
619 case PDR_PDA_VERSION:
620 case PDR_NIC_SERIAL_NUMBER:
621 case PDR_REGULATORY_DOMAIN_LIST:
622 case PDR_TEMPERATURE_TYPE:
623 case PDR_PRISM_PCI_IDENTIFIER:
624 case PDR_COUNTRY_INFORMATION:
626 case PDR_PRODUCT_NAME:
627 case PDR_UTF8_OEM_NAME:
628 case PDR_UTF8_PRODUCT_NAME:
629 case PDR_COUNTRY_LIST:
630 case PDR_ANTENNA_GAIN:
631 case PDR_PRISM_INDIGO_PA_CALIBRATION_DATA:
632 case PDR_REGULATORY_POWER_LIMITS:
633 case PDR_RADIATED_TRANSMISSION_CORRECTION:
634 case PDR_PRISM_TX_IQ_CALIBRATION:
635 case PDR_BASEBAND_REGISTERS:
636 case PDR_PER_CHANNEL_BASEBAND_REGISTERS:
639 printk(KERN_INFO "%s: unknown eeprom code : 0x%x\n",
640 wiphy_name(dev->wiphy),
641 le16_to_cpu(entry->code));
645 entry = (void *)entry + (entry_len + 1)*2;
648 if (!synth || !priv->iq_autocal || !priv->output_limit ||
650 printk(KERN_ERR "%s: not all required entries found in eeprom!\n",
651 wiphy_name(dev->wiphy));
656 priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
657 if (priv->rxhw == PDR_SYNTH_FRONTEND_XBOW)
658 p54_init_xbow_synth(dev);
659 if (!(synth & PDR_SYNTH_24_GHZ_DISABLED))
660 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz;
661 if (!(synth & PDR_SYNTH_5_GHZ_DISABLED))
662 dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz;
663 if ((synth & PDR_SYNTH_RX_DIV_MASK) == PDR_SYNTH_RX_DIV_SUPPORTED)
664 priv->rx_diversity_mask = 3;
665 if ((synth & PDR_SYNTH_TX_DIV_MASK) == PDR_SYNTH_TX_DIV_SUPPORTED)
666 priv->tx_diversity_mask = 3;
668 if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
669 u8 perm_addr[ETH_ALEN];
671 printk(KERN_WARNING "%s: Invalid hwaddr! Using randomly generated MAC addr\n",
672 wiphy_name(dev->wiphy));
673 random_ether_addr(perm_addr);
674 SET_IEEE80211_PERM_ADDR(dev, perm_addr);
677 printk(KERN_INFO "%s: hwaddr %pM, MAC:isl38%02x RF:%s\n",
678 wiphy_name(dev->wiphy),
679 dev->wiphy->perm_addr,
680 priv->version, p54_rf_chips[priv->rxhw]);
685 if (priv->iq_autocal) {
686 kfree(priv->iq_autocal);
687 priv->iq_autocal = NULL;
690 if (priv->output_limit) {
691 kfree(priv->output_limit);
692 priv->output_limit = NULL;
695 if (priv->curve_data) {
696 kfree(priv->curve_data);
697 priv->curve_data = NULL;
700 printk(KERN_ERR "%s: eeprom parse failed!\n",
701 wiphy_name(dev->wiphy));
704 EXPORT_SYMBOL_GPL(p54_parse_eeprom);
706 static int p54_rssi_to_dbm(struct ieee80211_hw *dev, int rssi)
708 struct p54_common *priv = dev->priv;
709 int band = dev->conf.channel->band;
711 if (priv->rxhw != PDR_SYNTH_FRONTEND_LONGBOW)
712 return ((rssi * priv->rssical_db[band].mul) / 64 +
713 priv->rssical_db[band].add) / 4;
716 * TODO: find the correct formula
718 return ((rssi * priv->rssical_db[band].mul) / 64 +
719 priv->rssical_db[band].add) / 4;
722 static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb)
724 struct p54_common *priv = dev->priv;
725 struct p54_rx_data *hdr = (struct p54_rx_data *) skb->data;
726 struct ieee80211_rx_status rx_status = {0};
727 u16 freq = le16_to_cpu(hdr->freq);
728 size_t header_len = sizeof(*hdr);
730 u8 rate = hdr->rate & 0xf;
733 * If the device is in a unspecified state we have to
734 * ignore all data frames. Else we could end up with a
737 if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
740 if (!(hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_IN_FCS_GOOD))) {
741 if (priv->filter_flags & FIF_FCSFAIL)
742 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
747 if (hdr->decrypt_status == P54_DECRYPT_OK)
748 rx_status.flag |= RX_FLAG_DECRYPTED;
749 if ((hdr->decrypt_status == P54_DECRYPT_FAIL_MICHAEL) ||
750 (hdr->decrypt_status == P54_DECRYPT_FAIL_TKIP))
751 rx_status.flag |= RX_FLAG_MMIC_ERROR;
753 rx_status.signal = p54_rssi_to_dbm(dev, hdr->rssi);
754 rx_status.noise = priv->noise;
756 rx_status.qual = (100 * hdr->rssi) / 127;
757 if (hdr->rate & 0x10)
758 rx_status.flag |= RX_FLAG_SHORTPRE;
759 if (dev->conf.channel->band == IEEE80211_BAND_5GHZ)
760 rx_status.rate_idx = (rate < 4) ? 0 : rate - 4;
762 rx_status.rate_idx = rate;
764 rx_status.freq = freq;
765 rx_status.band = dev->conf.channel->band;
766 rx_status.antenna = hdr->antenna;
768 tsf32 = le32_to_cpu(hdr->tsf32);
769 if (tsf32 < priv->tsf_low32)
771 rx_status.mactime = ((u64)priv->tsf_high32) << 32 | tsf32;
772 priv->tsf_low32 = tsf32;
774 rx_status.flag |= RX_FLAG_TSFT;
776 if (hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
777 header_len += hdr->align[0];
779 skb_pull(skb, header_len);
780 skb_trim(skb, le16_to_cpu(hdr->len));
782 ieee80211_rx_irqsafe(dev, skb, &rx_status);
784 queue_delayed_work(dev->workqueue, &priv->work,
785 msecs_to_jiffies(P54_STATISTICS_UPDATE));
790 static void inline p54_wake_free_queues(struct ieee80211_hw *dev)
792 struct p54_common *priv = dev->priv;
795 if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
798 for (i = 0; i < dev->queues; i++)
799 if (priv->tx_stats[i + P54_QUEUE_DATA].len <
800 priv->tx_stats[i + P54_QUEUE_DATA].limit)
801 ieee80211_wake_queue(dev, i);
804 void p54_free_skb(struct ieee80211_hw *dev, struct sk_buff *skb)
806 struct p54_common *priv = dev->priv;
807 struct ieee80211_tx_info *info;
808 struct p54_tx_info *range;
810 u32 freed = 0, last_addr = priv->rx_start;
812 if (unlikely(!skb || !dev || !skb_queue_len(&priv->tx_queue)))
816 * don't try to free an already unlinked skb
818 if (unlikely((!skb->next) || (!skb->prev)))
821 spin_lock_irqsave(&priv->tx_queue.lock, flags);
822 info = IEEE80211_SKB_CB(skb);
823 range = (void *)info->rate_driver_data;
824 if (skb->prev != (struct sk_buff *)&priv->tx_queue) {
825 struct ieee80211_tx_info *ni;
826 struct p54_tx_info *mr;
828 ni = IEEE80211_SKB_CB(skb->prev);
829 mr = (struct p54_tx_info *)ni->rate_driver_data;
830 last_addr = mr->end_addr;
832 if (skb->next != (struct sk_buff *)&priv->tx_queue) {
833 struct ieee80211_tx_info *ni;
834 struct p54_tx_info *mr;
836 ni = IEEE80211_SKB_CB(skb->next);
837 mr = (struct p54_tx_info *)ni->rate_driver_data;
838 freed = mr->start_addr - last_addr;
840 freed = priv->rx_end - last_addr;
841 __skb_unlink(skb, &priv->tx_queue);
842 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
843 dev_kfree_skb_any(skb);
845 if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 +
846 IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
847 p54_wake_free_queues(dev);
849 EXPORT_SYMBOL_GPL(p54_free_skb);
851 static struct sk_buff *p54_find_tx_entry(struct ieee80211_hw *dev,
854 struct p54_common *priv = dev->priv;
855 struct sk_buff *entry;
858 spin_lock_irqsave(&priv->tx_queue.lock, flags);
859 entry = priv->tx_queue.next;
860 while (entry != (struct sk_buff *)&priv->tx_queue) {
861 struct p54_hdr *hdr = (struct p54_hdr *) entry->data;
863 if (hdr->req_id == req_id) {
864 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
869 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
873 static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
875 struct p54_common *priv = dev->priv;
876 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
877 struct p54_frame_sent *payload = (struct p54_frame_sent *) hdr->data;
878 struct sk_buff *entry;
879 u32 addr = le32_to_cpu(hdr->req_id) - priv->headroom;
880 struct p54_tx_info *range = NULL;
882 u32 last_addr = priv->rx_start;
886 spin_lock_irqsave(&priv->tx_queue.lock, flags);
887 entry = (struct sk_buff *) priv->tx_queue.next;
888 while (entry != (struct sk_buff *)&priv->tx_queue) {
889 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
890 struct p54_hdr *entry_hdr;
891 struct p54_tx_data *entry_data;
892 unsigned int pad = 0, frame_len;
894 range = (void *)info->rate_driver_data;
895 if (range->start_addr != addr) {
896 last_addr = range->end_addr;
901 if (entry->next != (struct sk_buff *)&priv->tx_queue) {
902 struct ieee80211_tx_info *ni;
903 struct p54_tx_info *mr;
905 ni = IEEE80211_SKB_CB(entry->next);
906 mr = (struct p54_tx_info *)ni->rate_driver_data;
907 freed = mr->start_addr - last_addr;
909 freed = priv->rx_end - last_addr;
911 last_addr = range->end_addr;
912 __skb_unlink(entry, &priv->tx_queue);
913 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
915 frame_len = entry->len;
916 entry_hdr = (struct p54_hdr *) entry->data;
917 entry_data = (struct p54_tx_data *) entry_hdr->data;
918 priv->tx_stats[entry_data->hw_queue].len--;
919 priv->stats.dot11ACKFailureCount += payload->tries - 1;
922 * Frames in P54_QUEUE_FWSCAN and P54_QUEUE_BEACON are
923 * generated by the driver. Therefore tx_status is bogus
924 * and we don't want to confuse the mac80211 stack.
926 if (unlikely(entry_data->hw_queue < P54_QUEUE_FWSCAN)) {
927 if (entry_data->hw_queue == P54_QUEUE_BEACON)
928 priv->cached_beacon = NULL;
935 * Clear manually, ieee80211_tx_info_clear_status would
936 * clear the counts too and we need them.
938 memset(&info->status.ampdu_ack_len, 0,
939 sizeof(struct ieee80211_tx_info) -
940 offsetof(struct ieee80211_tx_info, status.ampdu_ack_len));
941 BUILD_BUG_ON(offsetof(struct ieee80211_tx_info,
942 status.ampdu_ack_len) != 23);
944 if (entry_hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
945 pad = entry_data->align[0];
947 /* walk through the rates array and adjust the counts */
948 count = payload->tries;
949 for (idx = 0; idx < 4; idx++) {
950 if (count >= info->status.rates[idx].count) {
951 count -= info->status.rates[idx].count;
952 } else if (count > 0) {
953 info->status.rates[idx].count = count;
956 info->status.rates[idx].idx = -1;
957 info->status.rates[idx].count = 0;
961 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
963 info->flags |= IEEE80211_TX_STAT_ACK;
964 if (payload->status & P54_TX_PSM_CANCELLED)
965 info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
966 info->status.ack_signal = p54_rssi_to_dbm(dev,
967 (int)payload->ack_rssi);
969 /* Undo all changes to the frame. */
970 switch (entry_data->key_type) {
971 case P54_CRYPTO_TKIPMICHAEL: {
972 u8 *iv = (u8 *)(entry_data->align + pad +
973 entry_data->crypt_offset);
975 /* Restore the original TKIP IV. */
978 iv[1] = (iv[0] | 0x20) & 0x7f; /* WEPSeed - 8.3.2.2 */
980 frame_len -= 12; /* remove TKIP_MMIC + TKIP_ICV */
983 case P54_CRYPTO_AESCCMP:
984 frame_len -= 8; /* remove CCMP_MIC */
987 frame_len -= 4; /* remove WEP_ICV */
990 skb_trim(entry, frame_len);
991 skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
992 ieee80211_tx_status_irqsafe(dev, entry);
995 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
998 if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 +
999 IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
1000 p54_wake_free_queues(dev);
1003 static void p54_rx_eeprom_readback(struct ieee80211_hw *dev,
1004 struct sk_buff *skb)
1006 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
1007 struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data;
1008 struct p54_common *priv = dev->priv;
1013 if (priv->fw_var >= 0x509) {
1014 memcpy(priv->eeprom, eeprom->v2.data,
1015 le16_to_cpu(eeprom->v2.len));
1017 memcpy(priv->eeprom, eeprom->v1.data,
1018 le16_to_cpu(eeprom->v1.len));
1021 complete(&priv->eeprom_comp);
1024 static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb)
1026 struct p54_common *priv = dev->priv;
1027 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
1028 struct p54_statistics *stats = (struct p54_statistics *) hdr->data;
1031 if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
1034 tsf32 = le32_to_cpu(stats->tsf32);
1035 if (tsf32 < priv->tsf_low32)
1037 priv->tsf_low32 = tsf32;
1039 priv->stats.dot11RTSFailureCount = le32_to_cpu(stats->rts_fail);
1040 priv->stats.dot11RTSSuccessCount = le32_to_cpu(stats->rts_success);
1041 priv->stats.dot11FCSErrorCount = le32_to_cpu(stats->rx_bad_fcs);
1043 priv->noise = p54_rssi_to_dbm(dev, le32_to_cpu(stats->noise));
1045 p54_free_skb(dev, p54_find_tx_entry(dev, hdr->req_id));
1048 static void p54_rx_trap(struct ieee80211_hw *dev, struct sk_buff *skb)
1050 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
1051 struct p54_trap *trap = (struct p54_trap *) hdr->data;
1052 u16 event = le16_to_cpu(trap->event);
1053 u16 freq = le16_to_cpu(trap->frequency);
1056 case P54_TRAP_BEACON_TX:
1058 case P54_TRAP_RADAR:
1059 printk(KERN_INFO "%s: radar (freq:%d MHz)\n",
1060 wiphy_name(dev->wiphy), freq);
1062 case P54_TRAP_NO_BEACON:
1068 case P54_TRAP_TIMER:
1071 printk(KERN_INFO "%s: received event:%x freq:%d\n",
1072 wiphy_name(dev->wiphy), event, freq);
1077 static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
1079 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
1081 switch (le16_to_cpu(hdr->type)) {
1082 case P54_CONTROL_TYPE_TXDONE:
1083 p54_rx_frame_sent(dev, skb);
1085 case P54_CONTROL_TYPE_TRAP:
1086 p54_rx_trap(dev, skb);
1088 case P54_CONTROL_TYPE_BBP:
1090 case P54_CONTROL_TYPE_STAT_READBACK:
1091 p54_rx_stats(dev, skb);
1093 case P54_CONTROL_TYPE_EEPROM_READBACK:
1094 p54_rx_eeprom_readback(dev, skb);
1097 printk(KERN_DEBUG "%s: not handling 0x%02x type control frame\n",
1098 wiphy_name(dev->wiphy), le16_to_cpu(hdr->type));
1105 /* returns zero if skb can be reused */
1106 int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb)
1108 u16 type = le16_to_cpu(*((__le16 *)skb->data));
1110 if (type & P54_HDR_FLAG_CONTROL)
1111 return p54_rx_control(dev, skb);
1113 return p54_rx_data(dev, skb);
1115 EXPORT_SYMBOL_GPL(p54_rx);
1118 * So, the firmware is somewhat stupid and doesn't know what places in its
1119 * memory incoming data should go to. By poking around in the firmware, we
1120 * can find some unused memory to upload our packets to. However, data that we
1121 * want the card to TX needs to stay intact until the card has told us that
1122 * it is done with it. This function finds empty places we can upload to and
1123 * marks allocated areas as reserved if necessary. p54_rx_frame_sent or
1124 * p54_free_skb frees allocated areas.
1126 static int p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
1127 struct p54_hdr *data, u32 len)
1129 struct p54_common *priv = dev->priv;
1130 struct sk_buff *entry;
1131 struct sk_buff *target_skb = NULL;
1132 struct ieee80211_tx_info *info;
1133 struct p54_tx_info *range;
1134 u32 last_addr = priv->rx_start;
1135 u32 largest_hole = 0;
1136 u32 target_addr = priv->rx_start;
1137 unsigned long flags;
1139 len = (len + priv->headroom + priv->tailroom + 3) & ~0x3;
1144 spin_lock_irqsave(&priv->tx_queue.lock, flags);
1146 left = skb_queue_len(&priv->tx_queue);
1147 if (unlikely(left >= 28)) {
1149 * The tx_queue is nearly full!
1150 * We have throttle normal data traffic, because we must
1151 * have a few spare slots for control frames left.
1153 ieee80211_stop_queues(dev);
1154 queue_delayed_work(dev->workqueue, &priv->work,
1155 msecs_to_jiffies(P54_TX_TIMEOUT));
1157 if (unlikely(left == 32)) {
1159 * The tx_queue is now really full.
1161 * TODO: check if the device has crashed and reset it.
1163 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
1168 entry = priv->tx_queue.next;
1171 info = IEEE80211_SKB_CB(entry);
1172 range = (void *)info->rate_driver_data;
1173 hole_size = range->start_addr - last_addr;
1174 if (!target_skb && hole_size >= len) {
1175 target_skb = entry->prev;
1177 target_addr = last_addr;
1179 largest_hole = max(largest_hole, hole_size);
1180 last_addr = range->end_addr;
1181 entry = entry->next;
1183 if (!target_skb && priv->rx_end - last_addr >= len) {
1184 target_skb = priv->tx_queue.prev;
1185 largest_hole = max(largest_hole, priv->rx_end - last_addr - len);
1186 if (!skb_queue_empty(&priv->tx_queue)) {
1187 info = IEEE80211_SKB_CB(target_skb);
1188 range = (void *)info->rate_driver_data;
1189 target_addr = range->end_addr;
1192 largest_hole = max(largest_hole, priv->rx_end - last_addr);
1195 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
1196 ieee80211_stop_queues(dev);
1200 info = IEEE80211_SKB_CB(skb);
1201 range = (void *)info->rate_driver_data;
1202 range->start_addr = target_addr;
1203 range->end_addr = target_addr + len;
1204 __skb_queue_after(&priv->tx_queue, target_skb, skb);
1205 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
1207 if (largest_hole < priv->headroom + sizeof(struct p54_hdr) +
1208 48 + IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
1209 ieee80211_stop_queues(dev);
1211 data->req_id = cpu_to_le32(target_addr + priv->headroom);
1215 static struct sk_buff *p54_alloc_skb(struct ieee80211_hw *dev, u16 hdr_flags,
1216 u16 payload_len, u16 type, gfp_t memflags)
1218 struct p54_common *priv = dev->priv;
1219 struct p54_hdr *hdr;
1220 struct sk_buff *skb;
1221 size_t frame_len = sizeof(*hdr) + payload_len;
1223 if (frame_len > P54_MAX_CTRL_FRAME_LEN)
1226 skb = __dev_alloc_skb(priv->tx_hdr_len + frame_len, memflags);
1229 skb_reserve(skb, priv->tx_hdr_len);
1231 hdr = (struct p54_hdr *) skb_put(skb, sizeof(*hdr));
1232 hdr->flags = cpu_to_le16(hdr_flags);
1233 hdr->len = cpu_to_le16(payload_len);
1234 hdr->type = cpu_to_le16(type);
1235 hdr->tries = hdr->rts_tries = 0;
1237 if (p54_assign_address(dev, skb, hdr, frame_len)) {
1244 int p54_read_eeprom(struct ieee80211_hw *dev)
1246 struct p54_common *priv = dev->priv;
1247 struct p54_eeprom_lm86 *eeprom_hdr;
1248 struct sk_buff *skb;
1249 size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize;
1251 void *eeprom = NULL;
1253 maxblocksize = EEPROM_READBACK_LEN;
1254 if (priv->fw_var >= 0x509)
1255 maxblocksize -= 0xc;
1257 maxblocksize -= 0x4;
1259 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL, sizeof(*eeprom_hdr) +
1260 maxblocksize, P54_CONTROL_TYPE_EEPROM_READBACK,
1264 priv->eeprom = kzalloc(EEPROM_READBACK_LEN, GFP_KERNEL);
1267 eeprom = kzalloc(eeprom_size, GFP_KERNEL);
1271 eeprom_hdr = (struct p54_eeprom_lm86 *) skb_put(skb,
1272 sizeof(*eeprom_hdr) + maxblocksize);
1274 while (eeprom_size) {
1275 blocksize = min(eeprom_size, maxblocksize);
1276 if (priv->fw_var < 0x509) {
1277 eeprom_hdr->v1.offset = cpu_to_le16(offset);
1278 eeprom_hdr->v1.len = cpu_to_le16(blocksize);
1280 eeprom_hdr->v2.offset = cpu_to_le32(offset);
1281 eeprom_hdr->v2.len = cpu_to_le16(blocksize);
1282 eeprom_hdr->v2.magic2 = 0xf;
1283 memcpy(eeprom_hdr->v2.magic, (const char *)"LOCK", 4);
1287 if (!wait_for_completion_interruptible_timeout(&priv->eeprom_comp, HZ)) {
1288 printk(KERN_ERR "%s: device does not respond!\n",
1289 wiphy_name(dev->wiphy));
1294 memcpy(eeprom + offset, priv->eeprom, blocksize);
1295 offset += blocksize;
1296 eeprom_size -= blocksize;
1299 ret = p54_parse_eeprom(dev, eeprom, offset);
1301 kfree(priv->eeprom);
1302 priv->eeprom = NULL;
1303 p54_free_skb(dev, skb);
1308 EXPORT_SYMBOL_GPL(p54_read_eeprom);
1310 static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
1313 struct p54_common *priv = dev->priv;
1314 struct sk_buff *skb;
1315 struct p54_tim *tim;
1317 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*tim),
1318 P54_CONTROL_TYPE_TIM, GFP_ATOMIC);
1322 tim = (struct p54_tim *) skb_put(skb, sizeof(*tim));
1324 tim->entry[0] = cpu_to_le16(set ? (sta->aid | 0x8000) : sta->aid);
1329 static int p54_sta_unlock(struct ieee80211_hw *dev, u8 *addr)
1331 struct p54_common *priv = dev->priv;
1332 struct sk_buff *skb;
1333 struct p54_sta_unlock *sta;
1335 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*sta),
1336 P54_CONTROL_TYPE_PSM_STA_UNLOCK, GFP_ATOMIC);
1340 sta = (struct p54_sta_unlock *)skb_put(skb, sizeof(*sta));
1341 memcpy(sta->addr, addr, ETH_ALEN);
1346 static void p54_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
1347 enum sta_notify_cmd notify_cmd,
1348 struct ieee80211_sta *sta)
1350 switch (notify_cmd) {
1351 case STA_NOTIFY_ADD:
1352 case STA_NOTIFY_REMOVE:
1354 * Notify the firmware that we don't want or we don't
1355 * need to buffer frames for this station anymore.
1358 p54_sta_unlock(dev, sta->addr);
1360 case STA_NOTIFY_AWAKE:
1361 /* update the firmware's filter table */
1362 p54_sta_unlock(dev, sta->addr);
1369 static int p54_tx_cancel(struct ieee80211_hw *dev, struct sk_buff *entry)
1371 struct p54_common *priv = dev->priv;
1372 struct sk_buff *skb;
1373 struct p54_hdr *hdr;
1374 struct p54_txcancel *cancel;
1376 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*cancel),
1377 P54_CONTROL_TYPE_TXCANCEL, GFP_ATOMIC);
1381 hdr = (void *)entry->data;
1382 cancel = (struct p54_txcancel *)skb_put(skb, sizeof(*cancel));
1383 cancel->req_id = hdr->req_id;
1388 static int p54_tx_fill(struct ieee80211_hw *dev, struct sk_buff *skb,
1389 struct ieee80211_tx_info *info, u8 *queue, size_t *extra_len,
1390 u16 *flags, u16 *aid)
1392 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1393 struct p54_common *priv = dev->priv;
1396 switch (priv->mode) {
1397 case NL80211_IFTYPE_MONITOR:
1399 * We have to set P54_HDR_FLAG_DATA_OUT_PROMISC for
1400 * every frame in promiscuous/monitor mode.
1401 * see STSW45x0C LMAC API - page 12.
1404 *flags = P54_HDR_FLAG_DATA_OUT_PROMISC;
1405 *queue += P54_QUEUE_DATA;
1407 case NL80211_IFTYPE_STATION:
1409 if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
1410 *queue = P54_QUEUE_MGMT;
1413 *queue += P54_QUEUE_DATA;
1415 case NL80211_IFTYPE_AP:
1416 case NL80211_IFTYPE_ADHOC:
1417 case NL80211_IFTYPE_MESH_POINT:
1418 if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) {
1420 *queue = P54_QUEUE_CAB;
1424 if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
1425 if (ieee80211_is_probe_resp(hdr->frame_control)) {
1427 *queue = P54_QUEUE_MGMT;
1428 *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP |
1429 P54_HDR_FLAG_DATA_OUT_NOCANCEL;
1431 } else if (ieee80211_is_beacon(hdr->frame_control)) {
1434 if (info->flags & IEEE80211_TX_CTL_INJECTED) {
1436 * Injecting beacons on top of a AP is
1437 * not a good idea... nevertheless,
1438 * it should be doable.
1441 *queue += P54_QUEUE_DATA;
1445 *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP;
1446 *queue = P54_QUEUE_BEACON;
1447 *extra_len = IEEE80211_MAX_TIM_LEN;
1450 *queue = P54_QUEUE_MGMT;
1454 *queue += P54_QUEUE_DATA;
1456 if (info->control.sta)
1457 *aid = info->control.sta->aid;
1459 *flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL;
1465 static u8 p54_convert_algo(enum ieee80211_key_alg alg)
1469 return P54_CRYPTO_WEP;
1471 return P54_CRYPTO_TKIPMICHAEL;
1473 return P54_CRYPTO_AESCCMP;
1479 static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
1481 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1482 struct ieee80211_tx_queue_stats *current_queue;
1483 struct p54_common *priv = dev->priv;
1484 struct p54_hdr *hdr;
1485 struct p54_tx_data *txhdr;
1486 size_t padding, len, tim_len = 0;
1487 int i, j, ridx, ret;
1488 u16 hdr_flags = 0, aid = 0;
1489 u8 rate, queue, crypt_offset = 0;
1492 u8 calculated_tries[4];
1493 u8 nrates = 0, nremaining = 8;
1495 queue = skb_get_queue_mapping(skb);
1497 ret = p54_tx_fill(dev, skb, info, &queue, &tim_len, &hdr_flags, &aid);
1498 current_queue = &priv->tx_stats[queue];
1499 if (unlikely((current_queue->len > current_queue->limit) && ret))
1500 return NETDEV_TX_BUSY;
1501 current_queue->len++;
1502 current_queue->count++;
1503 if ((current_queue->len == current_queue->limit) && ret)
1504 ieee80211_stop_queue(dev, skb_get_queue_mapping(skb));
1506 padding = (unsigned long)(skb->data - (sizeof(*hdr) + sizeof(*txhdr))) & 3;
1509 if (info->control.hw_key) {
1510 crypt_offset = ieee80211_get_hdrlen_from_skb(skb);
1511 if (info->control.hw_key->alg == ALG_TKIP) {
1512 u8 *iv = (u8 *)(skb->data + crypt_offset);
1514 * The firmware excepts that the IV has to have
1515 * this special format
1523 txhdr = (struct p54_tx_data *) skb_push(skb, sizeof(*txhdr) + padding);
1524 hdr = (struct p54_hdr *) skb_push(skb, sizeof(*hdr));
1527 hdr_flags |= P54_HDR_FLAG_DATA_ALIGN;
1528 hdr->type = cpu_to_le16(aid);
1529 hdr->rts_tries = info->control.rates[0].count;
1532 * we register the rates in perfect order, and
1533 * RTS/CTS won't happen on 5 GHz
1535 cts_rate = info->control.rts_cts_rate_idx;
1537 memset(&txhdr->rateset, 0, sizeof(txhdr->rateset));
1539 /* see how many rates got used */
1540 for (i = 0; i < 4; i++) {
1541 if (info->control.rates[i].idx < 0)
1546 /* limit tries to 8/nrates per rate */
1547 for (i = 0; i < nrates; i++) {
1549 * The magic expression here is equivalent to 8/nrates for
1550 * all values that matter, but avoids division and jumps.
1551 * Note that nrates can only take the values 1 through 4.
1553 calculated_tries[i] = min_t(int, ((15 >> nrates) | 1) + 1,
1554 info->control.rates[i].count);
1555 nremaining -= calculated_tries[i];
1558 /* if there are tries left, distribute from back to front */
1559 for (i = nrates - 1; nremaining > 0 && i >= 0; i--) {
1560 int tmp = info->control.rates[i].count - calculated_tries[i];
1564 /* RC requested more tries at this rate */
1566 tmp = min_t(int, tmp, nremaining);
1567 calculated_tries[i] += tmp;
1572 for (i = 0; i < nrates && ridx < 8; i++) {
1573 /* we register the rates in perfect order */
1574 rate = info->control.rates[i].idx;
1575 if (info->band == IEEE80211_BAND_5GHZ)
1578 /* store the count we actually calculated for TX status */
1579 info->control.rates[i].count = calculated_tries[i];
1581 rc_flags = info->control.rates[i].flags;
1582 if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) {
1586 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
1588 else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1590 for (j = 0; j < calculated_tries[i] && ridx < 8; j++) {
1591 txhdr->rateset[ridx] = rate;
1596 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
1597 hdr_flags |= P54_HDR_FLAG_DATA_OUT_SEQNR;
1599 /* TODO: enable bursting */
1600 hdr->flags = cpu_to_le16(hdr_flags);
1602 txhdr->rts_rate_idx = 0;
1603 if (info->control.hw_key) {
1604 txhdr->key_type = p54_convert_algo(info->control.hw_key->alg);
1605 txhdr->key_len = min((u8)16, info->control.hw_key->keylen);
1606 memcpy(txhdr->key, info->control.hw_key->key, txhdr->key_len);
1607 if (info->control.hw_key->alg == ALG_TKIP) {
1608 if (unlikely(skb_tailroom(skb) < 12))
1610 /* reserve space for the MIC key */
1612 memcpy(skb_put(skb, 8), &(info->control.hw_key->key
1613 [NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY]), 8);
1615 /* reserve some space for ICV */
1616 len += info->control.hw_key->icv_len;
1617 memset(skb_put(skb, info->control.hw_key->icv_len), 0,
1618 info->control.hw_key->icv_len);
1620 txhdr->key_type = 0;
1623 txhdr->crypt_offset = crypt_offset;
1624 txhdr->hw_queue = queue;
1625 txhdr->backlog = current_queue->len;
1626 memset(txhdr->durations, 0, sizeof(txhdr->durations));
1627 txhdr->tx_antenna = ((info->antenna_sel_tx == 0) ?
1628 2 : info->antenna_sel_tx - 1) & priv->tx_diversity_mask;
1629 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1630 txhdr->longbow.cts_rate = cts_rate;
1631 txhdr->longbow.output_power = cpu_to_le16(priv->output_power);
1633 txhdr->normal.output_power = priv->output_power;
1634 txhdr->normal.cts_rate = cts_rate;
1637 txhdr->align[0] = padding;
1639 hdr->len = cpu_to_le16(len);
1640 /* modifies skb->cb and with it info, so must be last! */
1641 if (unlikely(p54_assign_address(dev, skb, hdr, skb->len + tim_len)))
1645 queue_delayed_work(dev->workqueue, &priv->work,
1646 msecs_to_jiffies(P54_TX_FRAME_LIFETIME));
1648 return NETDEV_TX_OK;
1651 skb_pull(skb, sizeof(*hdr) + sizeof(*txhdr) + padding);
1652 current_queue->len--;
1653 current_queue->count--;
1654 return NETDEV_TX_BUSY;
1657 static int p54_setup_mac(struct ieee80211_hw *dev)
1659 struct p54_common *priv = dev->priv;
1660 struct sk_buff *skb;
1661 struct p54_setup_mac *setup;
1664 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*setup),
1665 P54_CONTROL_TYPE_SETUP, GFP_ATOMIC);
1669 setup = (struct p54_setup_mac *) skb_put(skb, sizeof(*setup));
1670 if (dev->conf.radio_enabled) {
1671 switch (priv->mode) {
1672 case NL80211_IFTYPE_STATION:
1673 mode = P54_FILTER_TYPE_STATION;
1675 case NL80211_IFTYPE_AP:
1676 mode = P54_FILTER_TYPE_AP;
1678 case NL80211_IFTYPE_ADHOC:
1679 case NL80211_IFTYPE_MESH_POINT:
1680 mode = P54_FILTER_TYPE_IBSS;
1682 case NL80211_IFTYPE_MONITOR:
1683 mode = P54_FILTER_TYPE_PROMISCUOUS;
1686 mode = P54_FILTER_TYPE_HIBERNATE;
1691 * "TRANSPARENT and PROMISCUOUS are mutually exclusive"
1692 * STSW45X0C LMAC API - page 12
1694 if (((priv->filter_flags & FIF_PROMISC_IN_BSS) ||
1695 (priv->filter_flags & FIF_OTHER_BSS)) &&
1696 (mode != P54_FILTER_TYPE_PROMISCUOUS))
1697 mode |= P54_FILTER_TYPE_TRANSPARENT;
1699 mode = P54_FILTER_TYPE_HIBERNATE;
1701 setup->mac_mode = cpu_to_le16(mode);
1702 memcpy(setup->mac_addr, priv->mac_addr, ETH_ALEN);
1703 memcpy(setup->bssid, priv->bssid, ETH_ALEN);
1704 setup->rx_antenna = 2 & priv->rx_diversity_mask; /* automatic */
1705 setup->rx_align = 0;
1706 if (priv->fw_var < 0x500) {
1707 setup->v1.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
1708 memset(setup->v1.rts_rates, 0, 8);
1709 setup->v1.rx_addr = cpu_to_le32(priv->rx_end);
1710 setup->v1.max_rx = cpu_to_le16(priv->rx_mtu);
1711 setup->v1.rxhw = cpu_to_le16(priv->rxhw);
1712 setup->v1.wakeup_timer = cpu_to_le16(priv->wakeup_timer);
1713 setup->v1.unalloc0 = cpu_to_le16(0);
1715 setup->v2.rx_addr = cpu_to_le32(priv->rx_end);
1716 setup->v2.max_rx = cpu_to_le16(priv->rx_mtu);
1717 setup->v2.rxhw = cpu_to_le16(priv->rxhw);
1718 setup->v2.timer = cpu_to_le16(priv->wakeup_timer);
1719 setup->v2.truncate = cpu_to_le16(48896);
1720 setup->v2.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
1721 setup->v2.sbss_offset = 0;
1722 setup->v2.mcast_window = 0;
1723 setup->v2.rx_rssi_threshold = 0;
1724 setup->v2.rx_ed_threshold = 0;
1725 setup->v2.ref_clock = cpu_to_le32(644245094);
1726 setup->v2.lpf_bandwidth = cpu_to_le16(65535);
1727 setup->v2.osc_start_delay = cpu_to_le16(65535);
1733 static int p54_scan(struct ieee80211_hw *dev, u16 mode, u16 dwell)
1735 struct p54_common *priv = dev->priv;
1736 struct sk_buff *skb;
1737 struct p54_hdr *hdr;
1738 struct p54_scan_head *head;
1739 struct p54_iq_autocal_entry *iq_autocal;
1740 union p54_scan_body_union *body;
1741 struct p54_scan_tail_rate *rate;
1742 struct pda_rssi_cal_entry *rssi;
1745 int band = dev->conf.channel->band;
1746 __le16 freq = cpu_to_le16(dev->conf.channel->center_freq);
1748 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*head) +
1749 2 + sizeof(*iq_autocal) + sizeof(*body) +
1750 sizeof(*rate) + 2 * sizeof(*rssi),
1751 P54_CONTROL_TYPE_SCAN, GFP_ATOMIC);
1755 head = (struct p54_scan_head *) skb_put(skb, sizeof(*head));
1756 memset(head->scan_params, 0, sizeof(head->scan_params));
1757 head->mode = cpu_to_le16(mode);
1758 head->dwell = cpu_to_le16(dwell);
1761 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1762 __le16 *pa_power_points = (__le16 *) skb_put(skb, 2);
1763 *pa_power_points = cpu_to_le16(0x0c);
1766 iq_autocal = (void *) skb_put(skb, sizeof(*iq_autocal));
1767 for (i = 0; i < priv->iq_autocal_len; i++) {
1768 if (priv->iq_autocal[i].freq != freq)
1771 memcpy(iq_autocal, &priv->iq_autocal[i].params,
1772 sizeof(struct p54_iq_autocal_entry));
1775 if (i == priv->iq_autocal_len)
1778 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW)
1779 body = (void *) skb_put(skb, sizeof(body->longbow));
1781 body = (void *) skb_put(skb, sizeof(body->normal));
1783 for (i = 0; i < priv->output_limit->entries; i++) {
1784 __le16 *entry_freq = (void *) (priv->output_limit->data +
1785 priv->output_limit->entry_size * i);
1787 if (*entry_freq != freq)
1790 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1791 memcpy(&body->longbow.power_limits,
1792 (void *) entry_freq + sizeof(__le16),
1793 priv->output_limit->entry_size);
1795 struct pda_channel_output_limit *limits =
1796 (void *) entry_freq;
1798 body->normal.val_barker = 0x38;
1799 body->normal.val_bpsk = body->normal.dup_bpsk =
1801 body->normal.val_qpsk = body->normal.dup_qpsk =
1803 body->normal.val_16qam = body->normal.dup_16qam =
1805 body->normal.val_64qam = body->normal.dup_64qam =
1810 if (i == priv->output_limit->entries)
1813 entry = (void *)(priv->curve_data->data + priv->curve_data->offset);
1814 for (i = 0; i < priv->curve_data->entries; i++) {
1815 if (*((__le16 *)entry) != freq) {
1816 entry += priv->curve_data->entry_size;
1820 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1821 memcpy(&body->longbow.curve_data,
1822 (void *) entry + sizeof(__le16),
1823 priv->curve_data->entry_size);
1825 struct p54_scan_body *chan = &body->normal;
1826 struct pda_pa_curve_data *curve_data =
1827 (void *) priv->curve_data->data;
1829 entry += sizeof(__le16);
1830 chan->pa_points_per_curve = 8;
1831 memset(chan->curve_data, 0, sizeof(*chan->curve_data));
1832 memcpy(chan->curve_data, entry,
1833 sizeof(struct p54_pa_curve_data_sample) *
1834 min((u8)8, curve_data->points_per_channel));
1838 if (i == priv->curve_data->entries)
1841 if ((priv->fw_var >= 0x500) && (priv->fw_var < 0x509)) {
1842 rate = (void *) skb_put(skb, sizeof(*rate));
1843 rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
1844 for (i = 0; i < sizeof(rate->rts_rates); i++)
1845 rate->rts_rates[i] = i;
1848 rssi = (struct pda_rssi_cal_entry *) skb_put(skb, sizeof(*rssi));
1849 rssi->mul = cpu_to_le16(priv->rssical_db[band].mul);
1850 rssi->add = cpu_to_le16(priv->rssical_db[band].add);
1851 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1852 /* Longbow frontend needs ever more */
1853 rssi = (void *) skb_put(skb, sizeof(*rssi));
1854 rssi->mul = cpu_to_le16(priv->rssical_db[band].longbow_unkn);
1855 rssi->add = cpu_to_le16(priv->rssical_db[band].longbow_unk2);
1858 if (priv->fw_var >= 0x509) {
1859 rate = (void *) skb_put(skb, sizeof(*rate));
1860 rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
1861 for (i = 0; i < sizeof(rate->rts_rates); i++)
1862 rate->rts_rates[i] = i;
1865 hdr = (struct p54_hdr *) skb->data;
1866 hdr->len = cpu_to_le16(skb->len - sizeof(*hdr));
1872 printk(KERN_ERR "%s: frequency change failed\n", wiphy_name(dev->wiphy));
1873 p54_free_skb(dev, skb);
1877 static int p54_set_leds(struct ieee80211_hw *dev)
1879 struct p54_common *priv = dev->priv;
1880 struct sk_buff *skb;
1881 struct p54_led *led;
1883 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*led),
1884 P54_CONTROL_TYPE_LED, GFP_ATOMIC);
1888 led = (struct p54_led *) skb_put(skb, sizeof(*led));
1889 led->flags = cpu_to_le16(0x0003);
1890 led->mask[0] = led->mask[1] = cpu_to_le16(priv->softled_state);
1891 led->delay[0] = cpu_to_le16(1);
1892 led->delay[1] = cpu_to_le16(0);
1897 #define P54_SET_QUEUE(queue, ai_fs, cw_min, cw_max, _txop) \
1899 queue.aifs = cpu_to_le16(ai_fs); \
1900 queue.cwmin = cpu_to_le16(cw_min); \
1901 queue.cwmax = cpu_to_le16(cw_max); \
1902 queue.txop = cpu_to_le16(_txop); \
1905 static int p54_set_edcf(struct ieee80211_hw *dev)
1907 struct p54_common *priv = dev->priv;
1908 struct sk_buff *skb;
1909 struct p54_edcf *edcf;
1911 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*edcf),
1912 P54_CONTROL_TYPE_DCFINIT, GFP_ATOMIC);
1916 edcf = (struct p54_edcf *)skb_put(skb, sizeof(*edcf));
1917 if (priv->use_short_slot) {
1920 edcf->eofpad = 0x00;
1922 edcf->slottime = 20;
1924 edcf->eofpad = 0x06;
1926 /* (see prism54/isl_oid.h for further details) */
1927 edcf->frameburst = cpu_to_le16(0);
1928 edcf->round_trip_delay = cpu_to_le16(0);
1930 memset(edcf->mapping, 0, sizeof(edcf->mapping));
1931 memcpy(edcf->queue, priv->qos_params, sizeof(edcf->queue));
1936 static int p54_set_ps(struct ieee80211_hw *dev)
1938 struct p54_common *priv = dev->priv;
1939 struct sk_buff *skb;
1940 struct p54_psm *psm;
1944 if (dev->conf.flags & IEEE80211_CONF_PS)
1945 mode = P54_PSM | P54_PSM_DTIM | P54_PSM_MCBC;
1949 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*psm),
1950 P54_CONTROL_TYPE_PSM, GFP_ATOMIC);
1954 psm = (struct p54_psm *)skb_put(skb, sizeof(*psm));
1955 psm->mode = cpu_to_le16(mode);
1956 psm->aid = cpu_to_le16(priv->aid);
1957 for (i = 0; i < ARRAY_SIZE(psm->intervals); i++) {
1958 psm->intervals[i].interval =
1959 cpu_to_le16(dev->conf.listen_interval);
1960 psm->intervals[i].periods = cpu_to_le16(1);
1963 psm->beacon_rssi_skip_max = 60;
1964 psm->rssi_delta_threshold = 0;
1972 static int p54_beacon_tim(struct sk_buff *skb)
1975 * the good excuse for this mess is ... the firmware.
1976 * The dummy TIM MUST be at the end of the beacon frame,
1977 * because it'll be overwritten!
1980 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1983 if (skb->len <= sizeof(mgmt))
1986 pos = (u8 *)mgmt->u.beacon.variable;
1987 end = skb->data + skb->len;
1989 if (pos + 2 + pos[1] > end)
1992 if (pos[0] == WLAN_EID_TIM) {
1993 u8 dtim_len = pos[1];
1994 u8 dtim_period = pos[3];
1995 u8 *next = pos + 2 + dtim_len;
2000 memmove(pos, next, end - next);
2003 skb_trim(skb, skb->len - (dtim_len - 3));
2005 pos = end - (dtim_len + 2);
2007 /* add the dummy at the end */
2008 pos[0] = WLAN_EID_TIM;
2011 pos[3] = dtim_period;
2020 static int p54_beacon_update(struct ieee80211_hw *dev,
2021 struct ieee80211_vif *vif)
2023 struct p54_common *priv = dev->priv;
2024 struct sk_buff *beacon;
2027 if (priv->cached_beacon) {
2028 p54_tx_cancel(dev, priv->cached_beacon);
2029 /* wait for the last beacon the be freed */
2033 beacon = ieee80211_beacon_get(dev, vif);
2036 ret = p54_beacon_tim(beacon);
2039 ret = p54_tx(dev, beacon);
2042 priv->cached_beacon = beacon;
2043 priv->tsf_high32 = 0;
2044 priv->tsf_low32 = 0;
2049 static int p54_start(struct ieee80211_hw *dev)
2051 struct p54_common *priv = dev->priv;
2054 mutex_lock(&priv->conf_mutex);
2055 err = priv->open(dev);
2058 P54_SET_QUEUE(priv->qos_params[0], 0x0002, 0x0003, 0x0007, 47);
2059 P54_SET_QUEUE(priv->qos_params[1], 0x0002, 0x0007, 0x000f, 94);
2060 P54_SET_QUEUE(priv->qos_params[2], 0x0003, 0x000f, 0x03ff, 0);
2061 P54_SET_QUEUE(priv->qos_params[3], 0x0007, 0x000f, 0x03ff, 0);
2062 err = p54_set_edcf(dev);
2066 memset(priv->bssid, ~0, ETH_ALEN);
2067 priv->mode = NL80211_IFTYPE_MONITOR;
2068 err = p54_setup_mac(dev);
2070 priv->mode = NL80211_IFTYPE_UNSPECIFIED;
2074 queue_delayed_work(dev->workqueue, &priv->work, 0);
2076 priv->softled_state = 0;
2077 err = p54_set_leds(dev);
2080 mutex_unlock(&priv->conf_mutex);
2084 static void p54_stop(struct ieee80211_hw *dev)
2086 struct p54_common *priv = dev->priv;
2087 struct sk_buff *skb;
2089 mutex_lock(&priv->conf_mutex);
2090 priv->mode = NL80211_IFTYPE_UNSPECIFIED;
2091 priv->softled_state = 0;
2094 cancel_delayed_work_sync(&priv->work);
2095 if (priv->cached_beacon)
2096 p54_tx_cancel(dev, priv->cached_beacon);
2099 while ((skb = skb_dequeue(&priv->tx_queue)))
2101 priv->cached_beacon = NULL;
2102 priv->tsf_high32 = priv->tsf_low32 = 0;
2103 mutex_unlock(&priv->conf_mutex);
2106 static int p54_add_interface(struct ieee80211_hw *dev,
2107 struct ieee80211_if_init_conf *conf)
2109 struct p54_common *priv = dev->priv;
2111 mutex_lock(&priv->conf_mutex);
2112 if (priv->mode != NL80211_IFTYPE_MONITOR) {
2113 mutex_unlock(&priv->conf_mutex);
2117 switch (conf->type) {
2118 case NL80211_IFTYPE_STATION:
2119 case NL80211_IFTYPE_ADHOC:
2120 case NL80211_IFTYPE_AP:
2121 case NL80211_IFTYPE_MESH_POINT:
2122 priv->mode = conf->type;
2125 mutex_unlock(&priv->conf_mutex);
2129 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
2131 mutex_unlock(&priv->conf_mutex);
2135 static void p54_remove_interface(struct ieee80211_hw *dev,
2136 struct ieee80211_if_init_conf *conf)
2138 struct p54_common *priv = dev->priv;
2140 mutex_lock(&priv->conf_mutex);
2141 if (priv->cached_beacon)
2142 p54_tx_cancel(dev, priv->cached_beacon);
2143 priv->mode = NL80211_IFTYPE_MONITOR;
2144 memset(priv->mac_addr, 0, ETH_ALEN);
2145 memset(priv->bssid, 0, ETH_ALEN);
2147 mutex_unlock(&priv->conf_mutex);
2150 static int p54_config(struct ieee80211_hw *dev, u32 changed)
2153 struct p54_common *priv = dev->priv;
2154 struct ieee80211_conf *conf = &dev->conf;
2156 mutex_lock(&priv->conf_mutex);
2157 if (changed & IEEE80211_CONF_CHANGE_POWER)
2158 priv->output_power = conf->power_level << 2;
2159 if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) {
2160 ret = p54_setup_mac(dev);
2164 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
2165 ret = p54_scan(dev, P54_SCAN_EXIT, 0);
2169 if (changed & IEEE80211_CONF_CHANGE_PS) {
2170 ret = p54_set_ps(dev);
2176 mutex_unlock(&priv->conf_mutex);
2180 static int p54_config_interface(struct ieee80211_hw *dev,
2181 struct ieee80211_vif *vif,
2182 struct ieee80211_if_conf *conf)
2184 struct p54_common *priv = dev->priv;
2187 mutex_lock(&priv->conf_mutex);
2188 if (conf->changed & IEEE80211_IFCC_BSSID) {
2189 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
2190 ret = p54_setup_mac(dev);
2195 if (conf->changed & IEEE80211_IFCC_BEACON) {
2196 ret = p54_scan(dev, P54_SCAN_EXIT, 0);
2199 ret = p54_setup_mac(dev);
2202 ret = p54_beacon_update(dev, vif);
2205 ret = p54_set_edcf(dev);
2211 mutex_unlock(&priv->conf_mutex);
2215 static void p54_configure_filter(struct ieee80211_hw *dev,
2216 unsigned int changed_flags,
2217 unsigned int *total_flags,
2218 int mc_count, struct dev_mc_list *mclist)
2220 struct p54_common *priv = dev->priv;
2222 *total_flags &= FIF_PROMISC_IN_BSS |
2224 (*total_flags & FIF_PROMISC_IN_BSS ?
2227 priv->filter_flags = *total_flags;
2229 if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS))
2233 static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue,
2234 const struct ieee80211_tx_queue_params *params)
2236 struct p54_common *priv = dev->priv;
2239 mutex_lock(&priv->conf_mutex);
2240 if ((params) && !(queue > 4)) {
2241 P54_SET_QUEUE(priv->qos_params[queue], params->aifs,
2242 params->cw_min, params->cw_max, params->txop);
2243 ret = p54_set_edcf(dev);
2246 mutex_unlock(&priv->conf_mutex);
2250 static int p54_init_xbow_synth(struct ieee80211_hw *dev)
2252 struct p54_common *priv = dev->priv;
2253 struct sk_buff *skb;
2254 struct p54_xbow_synth *xbow;
2256 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*xbow),
2257 P54_CONTROL_TYPE_XBOW_SYNTH_CFG, GFP_KERNEL);
2261 xbow = (struct p54_xbow_synth *)skb_put(skb, sizeof(*xbow));
2262 xbow->magic1 = cpu_to_le16(0x1);
2263 xbow->magic2 = cpu_to_le16(0x2);
2264 xbow->freq = cpu_to_le16(5390);
2265 memset(xbow->padding, 0, sizeof(xbow->padding));
2270 static void p54_work(struct work_struct *work)
2272 struct p54_common *priv = container_of(work, struct p54_common,
2274 struct ieee80211_hw *dev = priv->hw;
2275 struct sk_buff *skb;
2277 if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
2281 * TODO: walk through tx_queue and do the following tasks
2282 * 1. initiate bursts.
2283 * 2. cancel stuck frames / reset the device if necessary.
2286 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL,
2287 sizeof(struct p54_statistics),
2288 P54_CONTROL_TYPE_STAT_READBACK, GFP_KERNEL);
2295 static int p54_get_stats(struct ieee80211_hw *dev,
2296 struct ieee80211_low_level_stats *stats)
2298 struct p54_common *priv = dev->priv;
2300 memcpy(stats, &priv->stats, sizeof(*stats));
2304 static int p54_get_tx_stats(struct ieee80211_hw *dev,
2305 struct ieee80211_tx_queue_stats *stats)
2307 struct p54_common *priv = dev->priv;
2309 memcpy(stats, &priv->tx_stats[P54_QUEUE_DATA],
2310 sizeof(stats[0]) * dev->queues);
2314 static void p54_bss_info_changed(struct ieee80211_hw *dev,
2315 struct ieee80211_vif *vif,
2316 struct ieee80211_bss_conf *info,
2319 struct p54_common *priv = dev->priv;
2321 if (changed & BSS_CHANGED_ERP_SLOT) {
2322 priv->use_short_slot = info->use_short_slot;
2325 if (changed & BSS_CHANGED_BASIC_RATES) {
2326 if (dev->conf.channel->band == IEEE80211_BAND_5GHZ)
2327 priv->basic_rate_mask = (info->basic_rates << 4);
2329 priv->basic_rate_mask = info->basic_rates;
2331 if (priv->fw_var >= 0x500)
2332 p54_scan(dev, P54_SCAN_EXIT, 0);
2334 if (changed & BSS_CHANGED_ASSOC) {
2336 priv->aid = info->aid;
2337 priv->wakeup_timer = info->beacon_int *
2338 info->dtim_period * 5;
2345 static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
2346 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
2347 struct ieee80211_key_conf *key)
2349 struct p54_common *priv = dev->priv;
2350 struct sk_buff *skb;
2351 struct p54_keycache *rxkey;
2354 if (modparam_nohwcrypt)
2357 if (cmd == DISABLE_KEY)
2362 if (!(priv->privacy_caps & (BR_DESC_PRIV_CAP_MICHAEL |
2363 BR_DESC_PRIV_CAP_TKIP)))
2365 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2366 algo = P54_CRYPTO_TKIPMICHAEL;
2369 if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_WEP))
2371 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2372 algo = P54_CRYPTO_WEP;
2375 if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP))
2377 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2378 algo = P54_CRYPTO_AESCCMP;
2385 if (key->keyidx > priv->rx_keycache_size) {
2387 * The device supports the choosen algorithm, but the firmware
2388 * does not provide enough key slots to store all of them.
2389 * So, incoming frames have to be decoded by the mac80211 stack,
2390 * but we can still offload encryption for outgoing frames.
2396 mutex_lock(&priv->conf_mutex);
2397 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*rxkey),
2398 P54_CONTROL_TYPE_RX_KEYCACHE, GFP_ATOMIC);
2400 mutex_unlock(&priv->conf_mutex);
2404 /* TODO: some devices have 4 more free slots for rx keys */
2405 rxkey = (struct p54_keycache *)skb_put(skb, sizeof(*rxkey));
2406 rxkey->entry = key->keyidx;
2407 rxkey->key_id = key->keyidx;
2408 rxkey->key_type = algo;
2410 memcpy(rxkey->mac, sta->addr, ETH_ALEN);
2412 memset(rxkey->mac, ~0, ETH_ALEN);
2413 if (key->alg != ALG_TKIP) {
2414 rxkey->key_len = min((u8)16, key->keylen);
2415 memcpy(rxkey->key, key->key, rxkey->key_len);
2417 rxkey->key_len = 24;
2418 memcpy(rxkey->key, key->key, 16);
2419 memcpy(&(rxkey->key[16]), &(key->key
2420 [NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY]), 8);
2424 mutex_unlock(&priv->conf_mutex);
2428 #ifdef CONFIG_MAC80211_LEDS
2429 static void p54_led_brightness_set(struct led_classdev *led_dev,
2430 enum led_brightness brightness)
2432 struct p54_led_dev *led = container_of(led_dev, struct p54_led_dev,
2434 struct ieee80211_hw *dev = led->hw_dev;
2435 struct p54_common *priv = dev->priv;
2438 /* Don't toggle the LED, when the device is down. */
2439 if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
2442 if (brightness != LED_OFF)
2443 priv->softled_state |= BIT(led->index);
2445 priv->softled_state &= ~BIT(led->index);
2447 err = p54_set_leds(dev);
2448 if (err && net_ratelimit())
2449 printk(KERN_ERR "%s: failed to update %s LED.\n",
2450 wiphy_name(dev->wiphy), led_dev->name);
2453 static int p54_register_led(struct ieee80211_hw *dev,
2454 struct p54_led_dev *led,
2455 unsigned int led_index,
2456 char *name, char *trigger)
2460 if (led->registered)
2463 snprintf(led->name, sizeof(led->name), "p54-%s::%s",
2464 wiphy_name(dev->wiphy), name);
2466 led->index = led_index;
2467 led->led_dev.name = led->name;
2468 led->led_dev.default_trigger = trigger;
2469 led->led_dev.brightness_set = p54_led_brightness_set;
2471 err = led_classdev_register(wiphy_dev(dev->wiphy), &led->led_dev);
2473 printk(KERN_ERR "%s: Failed to register %s LED.\n",
2474 wiphy_name(dev->wiphy), name);
2476 led->registered = 1;
2481 static int p54_init_leds(struct ieee80211_hw *dev)
2483 struct p54_common *priv = dev->priv;
2488 * Figure out if the EEPROM contains some hints about the number
2489 * of available/programmable LEDs of the device.
2490 * But for now, we can assume that we have two programmable LEDs.
2493 err = p54_register_led(dev, &priv->assoc_led, 0, "assoc",
2494 ieee80211_get_assoc_led_name(dev));
2498 err = p54_register_led(dev, &priv->tx_led, 1, "tx",
2499 ieee80211_get_tx_led_name(dev));
2503 err = p54_set_leds(dev);
2507 static void p54_unregister_leds(struct ieee80211_hw *dev)
2509 struct p54_common *priv = dev->priv;
2511 if (priv->tx_led.registered)
2512 led_classdev_unregister(&priv->tx_led.led_dev);
2513 if (priv->assoc_led.registered)
2514 led_classdev_unregister(&priv->assoc_led.led_dev);
2516 #endif /* CONFIG_MAC80211_LEDS */
2518 static const struct ieee80211_ops p54_ops = {
2522 .add_interface = p54_add_interface,
2523 .remove_interface = p54_remove_interface,
2524 .set_tim = p54_set_tim,
2525 .sta_notify = p54_sta_notify,
2526 .set_key = p54_set_key,
2527 .config = p54_config,
2528 .config_interface = p54_config_interface,
2529 .bss_info_changed = p54_bss_info_changed,
2530 .configure_filter = p54_configure_filter,
2531 .conf_tx = p54_conf_tx,
2532 .get_stats = p54_get_stats,
2533 .get_tx_stats = p54_get_tx_stats
2536 struct ieee80211_hw *p54_init_common(size_t priv_data_len)
2538 struct ieee80211_hw *dev;
2539 struct p54_common *priv;
2541 dev = ieee80211_alloc_hw(priv_data_len, &p54_ops);
2547 priv->mode = NL80211_IFTYPE_UNSPECIFIED;
2548 priv->basic_rate_mask = 0x15f;
2549 skb_queue_head_init(&priv->tx_queue);
2550 dev->flags = IEEE80211_HW_RX_INCLUDES_FCS |
2551 IEEE80211_HW_SUPPORTS_PS |
2552 IEEE80211_HW_PS_NULLFUNC_STACK |
2553 IEEE80211_HW_SIGNAL_DBM |
2554 IEEE80211_HW_NOISE_DBM;
2556 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2557 BIT(NL80211_IFTYPE_ADHOC) |
2558 BIT(NL80211_IFTYPE_AP) |
2559 BIT(NL80211_IFTYPE_MESH_POINT);
2561 dev->channel_change_time = 1000; /* TODO: find actual value */
2562 priv->tx_stats[P54_QUEUE_BEACON].limit = 1;
2563 priv->tx_stats[P54_QUEUE_FWSCAN].limit = 1;
2564 priv->tx_stats[P54_QUEUE_MGMT].limit = 3;
2565 priv->tx_stats[P54_QUEUE_CAB].limit = 3;
2566 priv->tx_stats[P54_QUEUE_DATA].limit = 5;
2570 * We support at most 8 tries no matter which rate they're at,
2571 * we cannot support max_rates * max_rate_tries as we set it
2572 * here, but setting it correctly to 4/2 or so would limit us
2573 * artificially if the RC algorithm wants just two rates, so
2574 * let's say 4/7, we'll redistribute it at TX time, see the
2578 dev->max_rate_tries = 7;
2579 dev->extra_tx_headroom = sizeof(struct p54_hdr) + 4 +
2580 sizeof(struct p54_tx_data);
2582 mutex_init(&priv->conf_mutex);
2583 init_completion(&priv->eeprom_comp);
2584 INIT_DELAYED_WORK(&priv->work, p54_work);
2588 EXPORT_SYMBOL_GPL(p54_init_common);
2590 int p54_register_common(struct ieee80211_hw *dev, struct device *pdev)
2594 err = ieee80211_register_hw(dev);
2596 dev_err(pdev, "Cannot register device (%d).\n", err);
2600 #ifdef CONFIG_MAC80211_LEDS
2601 err = p54_init_leds(dev);
2604 #endif /* CONFIG_MAC80211_LEDS */
2606 dev_info(pdev, "is registered as '%s'\n", wiphy_name(dev->wiphy));
2609 EXPORT_SYMBOL_GPL(p54_register_common);
2611 void p54_free_common(struct ieee80211_hw *dev)
2613 struct p54_common *priv = dev->priv;
2614 kfree(priv->iq_autocal);
2615 kfree(priv->output_limit);
2616 kfree(priv->curve_data);
2618 #ifdef CONFIG_MAC80211_LEDS
2619 p54_unregister_leds(dev);
2620 #endif /* CONFIG_MAC80211_LEDS */
2622 EXPORT_SYMBOL_GPL(p54_free_common);
2624 static int __init p54_init(void)
2629 static void __exit p54_exit(void)
2633 module_init(p54_init);
2634 module_exit(p54_exit);