drivers/net/wireless/p54/fwio.c

   1 /*
   2  * Firmware I/O code for mac80211 Prism54 drivers
   3  *
   4  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   5  * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
   6  * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
   7  *
   8  * Based on:
   9  * - the islsm (softmac prism54) driver, which is:
  10  *   Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
  11  * - stlc45xx driver
  12  *   Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License version 2 as
  16  * published by the Free Software Foundation.
  17  */
  18
  19 #include <linux/init.h>
  20 #include <linux/firmware.h>
  21 #include <linux/etherdevice.h>
  22
  23 #include <net/mac80211.h>
  24
  25 #include "p54.h"
  26 #include "eeprom.h"
  27 #include "lmac.h"
  28
  29 int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
  30 {
  31         struct p54_common *priv = dev->priv;
  32         struct exp_if *exp_if;
  33         struct bootrec *bootrec;
  34         u32 *data = (u32 *)fw->data;
  35         u32 *end_data = (u32 *)fw->data + (fw->size >> 2);
  36         u8 *fw_version = NULL;
  37         size_t len;
  38         int i;
  39         int maxlen;
  40
  41         if (priv->rx_start)
  42                 return 0;
  43
  44         while (data < end_data && *data)
  45                 data++;
  46
  47         while (data < end_data && !*data)
  48                 data++;
  49
  50         bootrec = (struct bootrec *) data;
  51
  52         while (bootrec->data <= end_data && (bootrec->data +
  53                (len = le32_to_cpu(bootrec->len))) <= end_data) {
  54                 u32 code = le32_to_cpu(bootrec->code);
  55                 switch (code) {
  56                 case BR_CODE_COMPONENT_ID:
  57                         priv->fw_interface = be32_to_cpup((__be32 *)
  58                                              bootrec->data);
  59                         switch (priv->fw_interface) {
  60                         case FW_LM86:
  61                         case FW_LM20:
  62                         case FW_LM87: {
  63                                 char *iftype = (char *)bootrec->data;
  64                                 printk(KERN_INFO "%s: p54 detected a LM%c%c "
  65                                                  "firmware\n",
  66                                         wiphy_name(priv->hw->wiphy),
  67                                         iftype[2], iftype[3]);
  68                                 break;
  69                                 }
  70                         case FW_FMAC:
  71                         default:
  72                                 printk(KERN_ERR "%s: unsupported firmware\n",
  73                                         wiphy_name(priv->hw->wiphy));
  74                                 return -ENODEV;
  75                         }
  76                         break;
  77                 case BR_CODE_COMPONENT_VERSION:
  78                         /* 24 bytes should be enough for all firmwares */
  79                         if (strnlen((unsigned char *) bootrec->data, 24) < 24)
  80                                 fw_version = (unsigned char *) bootrec->data;
  81                         break;
  82                 case BR_CODE_DESCR: {
  83                         struct bootrec_desc *desc =
  84                                 (struct bootrec_desc *)bootrec->data;
  85                         priv->rx_start = le32_to_cpu(desc->rx_start);
  86                         /* FIXME add sanity checking */
  87                         priv->rx_end = le32_to_cpu(desc->rx_end) - 0x3500;
  88                         priv->headroom = desc->headroom;
  89                         priv->tailroom = desc->tailroom;
  90                         priv->privacy_caps = desc->privacy_caps;
  91                         priv->rx_keycache_size = desc->rx_keycache_size;
  92                         if (le32_to_cpu(bootrec->len) == 11)
  93                                 priv->rx_mtu = le16_to_cpu(desc->rx_mtu);
  94                         else
  95                                 priv->rx_mtu = (size_t)
  96                                         0x620 - priv->tx_hdr_len;
  97                         maxlen = priv->tx_hdr_len + /* USB devices */
  98                                  sizeof(struct p54_rx_data) +
  99                                  4 + /* rx alignment */
 100                                  IEEE80211_MAX_FRAG_THRESHOLD;
 101                         if (priv->rx_mtu > maxlen && PAGE_SIZE == 4096) {
 102                                 printk(KERN_INFO "p54: rx_mtu reduced from %d "
 103                                        "to %d\n", priv->rx_mtu, maxlen);
 104                                 priv->rx_mtu = maxlen;
 105                         }
 106                         break;
 107                         }
 108                 case BR_CODE_EXPOSED_IF:
 109                         exp_if = (struct exp_if *) bootrec->data;
 110                         for (i = 0; i < (len * sizeof(*exp_if) / 4); i++)
 111                                 if (exp_if[i].if_id == cpu_to_le16(IF_ID_LMAC))
 112                                         priv->fw_var = le16_to_cpu(exp_if[i].variant);
 113                         break;
 114                 case BR_CODE_DEPENDENT_IF:
 115                         break;
 116                 case BR_CODE_END_OF_BRA:
 117                 case LEGACY_BR_CODE_END_OF_BRA:
 118                         end_data = NULL;
 119                         break;
 120                 default:
 121                         break;
 122                 }
 123                 bootrec = (struct bootrec *)&bootrec->data[len];
 124         }
 125
 126         if (fw_version)
 127                 printk(KERN_INFO "%s: FW rev %s - Softmac protocol %x.%x\n",
 128                         wiphy_name(priv->hw->wiphy), fw_version,
 129                         priv->fw_var >> 8, priv->fw_var & 0xff);
 130
 131         if (priv->fw_var < 0x500)
 132                 printk(KERN_INFO "%s: you are using an obsolete firmware. "
 133                        "visit http://wireless.kernel.org/en/users/Drivers/p54 "
 134                        "and grab one for \"kernel >= 2.6.28\"!\n",
 135                         wiphy_name(priv->hw->wiphy));
 136
 137         if (priv->fw_var >= 0x300) {
 138                 /* Firmware supports QoS, use it! */
 139
 140                 if (priv->fw_var >= 0x500) {
 141                         priv->tx_stats[P54_QUEUE_AC_VO].limit = 16;
 142                         priv->tx_stats[P54_QUEUE_AC_VI].limit = 16;
 143                         priv->tx_stats[P54_QUEUE_AC_BE].limit = 16;
 144                         priv->tx_stats[P54_QUEUE_AC_BK].limit = 16;
 145                 } else {
 146                         priv->tx_stats[P54_QUEUE_AC_VO].limit = 3;
 147                         priv->tx_stats[P54_QUEUE_AC_VI].limit = 4;
 148                         priv->tx_stats[P54_QUEUE_AC_BE].limit = 3;
 149                         priv->tx_stats[P54_QUEUE_AC_BK].limit = 2;
 150                 }
 151                 priv->hw->queues = P54_QUEUE_AC_NUM;
 152         }
 153
 154         printk(KERN_INFO "%s: cryptographic accelerator "
 155                "WEP:%s, TKIP:%s, CCMP:%s\n", wiphy_name(priv->hw->wiphy),
 156                 (priv->privacy_caps & BR_DESC_PRIV_CAP_WEP) ? "YES" :
 157                 "no", (priv->privacy_caps & (BR_DESC_PRIV_CAP_TKIP |
 158                 BR_DESC_PRIV_CAP_MICHAEL)) ? "YES" : "no",
 159                 (priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP) ?
 160                 "YES" : "no");
 161
 162         if (priv->rx_keycache_size) {
 163                 /*
 164                  * NOTE:
 165                  *
 166                  * The firmware provides at most 255 (0 - 254) slots
 167                  * for keys which are then used to offload decryption.
 168                  * As a result the 255 entry (aka 0xff) can be used
 169                  * safely by the driver to mark keys that didn't fit
 170                  * into the full cache. This trick saves us from
 171                  * keeping a extra list for uploaded keys.
 172                  */
 173
 174                 priv->used_rxkeys = kzalloc(BITS_TO_LONGS(
 175                         priv->rx_keycache_size), GFP_KERNEL);
 176
 177                 if (!priv->used_rxkeys)
 178                         return -ENOMEM;
 179         }
 180
 181         return 0;
 182 }
 183 EXPORT_SYMBOL_GPL(p54_parse_firmware);
 184
 185 static struct sk_buff *p54_alloc_skb(struct p54_common *priv, u16 hdr_flags,
 186                                      u16 payload_len, u16 type, gfp_t memflags)
 187 {
 188         struct p54_hdr *hdr;
 189         struct sk_buff *skb;
 190         size_t frame_len = sizeof(*hdr) + payload_len;
 191
 192         if (frame_len > P54_MAX_CTRL_FRAME_LEN)
 193                 return NULL;
 194
 195         if (unlikely(skb_queue_len(&priv->tx_pending) > 64))
 196                 return NULL;
 197
 198         skb = __dev_alloc_skb(priv->tx_hdr_len + frame_len, memflags);
 199         if (!skb)
 200                 return NULL;
 201         skb_reserve(skb, priv->tx_hdr_len);
 202
 203         hdr = (struct p54_hdr *) skb_put(skb, sizeof(*hdr));
 204         hdr->flags = cpu_to_le16(hdr_flags);
 205         hdr->len = cpu_to_le16(payload_len);
 206         hdr->type = cpu_to_le16(type);
 207         hdr->tries = hdr->rts_tries = 0;
 208         return skb;
 209 }
 210
 211 int p54_download_eeprom(struct p54_common *priv, void *buf,
 212                         u16 offset, u16 len)
 213 {
 214         struct p54_eeprom_lm86 *eeprom_hdr;
 215         struct sk_buff *skb;
 216         size_t eeprom_hdr_size;
 217         int ret = 0;
 218
 219         if (priv->fw_var >= 0x509)
 220                 eeprom_hdr_size = sizeof(*eeprom_hdr);
 221         else
 222                 eeprom_hdr_size = 0x4;
 223
 224         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL, eeprom_hdr_size +
 225                             len, P54_CONTROL_TYPE_EEPROM_READBACK,
 226                             GFP_KERNEL);
 227         if (unlikely(!skb))
 228                 return -ENOMEM;
 229
 230         mutex_lock(&priv->eeprom_mutex);
 231         priv->eeprom = buf;
 232         eeprom_hdr = (struct p54_eeprom_lm86 *) skb_put(skb,
 233                 eeprom_hdr_size + len);
 234
 235         if (priv->fw_var < 0x509) {
 236                 eeprom_hdr->v1.offset = cpu_to_le16(offset);
 237                 eeprom_hdr->v1.len = cpu_to_le16(len);
 238         } else {
 239                 eeprom_hdr->v2.offset = cpu_to_le32(offset);
 240                 eeprom_hdr->v2.len = cpu_to_le16(len);
 241                 eeprom_hdr->v2.magic2 = 0xf;
 242                 memcpy(eeprom_hdr->v2.magic, (const char *)"LOCK", 4);
 243         }
 244
 245         p54_tx(priv, skb);
 246
 247         if (!wait_for_completion_interruptible_timeout(
 248              &priv->eeprom_comp, HZ)) {
 249                 printk(KERN_ERR "%s: device does not respond!\n",
 250                        wiphy_name(priv->hw->wiphy));
 251                 ret = -EBUSY;
 252         }
 253         priv->eeprom = NULL;
 254         mutex_unlock(&priv->eeprom_mutex);
 255         return ret;
 256 }
 257
 258 int p54_update_beacon_tim(struct p54_common *priv, u16 aid, bool set)
 259 {
 260         struct sk_buff *skb;
 261         struct p54_tim *tim;
 262
 263         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*tim),
 264                             P54_CONTROL_TYPE_TIM, GFP_ATOMIC);
 265         if (unlikely(!skb))
 266                 return -ENOMEM;
 267
 268         tim = (struct p54_tim *) skb_put(skb, sizeof(*tim));
 269         tim->count = 1;
 270         tim->entry[0] = cpu_to_le16(set ? (aid | 0x8000) : aid);
 271         p54_tx(priv, skb);
 272         return 0;
 273 }
 274
 275 int p54_sta_unlock(struct p54_common *priv, u8 *addr)
 276 {
 277         struct sk_buff *skb;
 278         struct p54_sta_unlock *sta;
 279
 280         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*sta),
 281                             P54_CONTROL_TYPE_PSM_STA_UNLOCK, GFP_ATOMIC);
 282         if (unlikely(!skb))
 283                 return -ENOMEM;
 284
 285         sta = (struct p54_sta_unlock *)skb_put(skb, sizeof(*sta));
 286         memcpy(sta->addr, addr, ETH_ALEN);
 287         p54_tx(priv, skb);
 288         return 0;
 289 }
 290
 291 int p54_tx_cancel(struct p54_common *priv, __le32 req_id)
 292 {
 293         struct sk_buff *skb;
 294         struct p54_txcancel *cancel;
 295         u32 _req_id = le32_to_cpu(req_id);
 296
 297         if (unlikely(_req_id < priv->rx_start || _req_id > priv->rx_end))
 298                 return -EINVAL;
 299
 300         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*cancel),
 301                             P54_CONTROL_TYPE_TXCANCEL, GFP_ATOMIC);
 302         if (unlikely(!skb))
 303                 return -ENOMEM;
 304
 305         cancel = (struct p54_txcancel *)skb_put(skb, sizeof(*cancel));
 306         cancel->req_id = req_id;
 307         p54_tx(priv, skb);
 308         return 0;
 309 }
 310
 311 int p54_setup_mac(struct p54_common *priv)
 312 {
 313         struct sk_buff *skb;
 314         struct p54_setup_mac *setup;
 315         u16 mode;
 316
 317         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*setup),
 318                             P54_CONTROL_TYPE_SETUP, GFP_ATOMIC);
 319         if (!skb)
 320                 return -ENOMEM;
 321
 322         setup = (struct p54_setup_mac *) skb_put(skb, sizeof(*setup));
 323         if (!(priv->hw->conf.flags & IEEE80211_CONF_IDLE)) {
 324                 switch (priv->mode) {
 325                 case NL80211_IFTYPE_STATION:
 326                         mode = P54_FILTER_TYPE_STATION;
 327                         break;
 328                 case NL80211_IFTYPE_AP:
 329                         mode = P54_FILTER_TYPE_AP;
 330                         break;
 331                 case NL80211_IFTYPE_ADHOC:
 332                 case NL80211_IFTYPE_MESH_POINT:
 333                         mode = P54_FILTER_TYPE_IBSS;
 334                         break;
 335                 case NL80211_IFTYPE_MONITOR:
 336                         mode = P54_FILTER_TYPE_PROMISCUOUS;
 337                         break;
 338                 default:
 339                         mode = P54_FILTER_TYPE_HIBERNATE;
 340                         break;
 341                 }
 342
 343                 /*
 344                  * "TRANSPARENT and PROMISCUOUS are mutually exclusive"
 345                  * STSW45X0C LMAC API - page 12
 346                  */
 347                 if (((priv->filter_flags & FIF_PROMISC_IN_BSS) ||
 348                      (priv->filter_flags & FIF_OTHER_BSS)) &&
 349                     (mode != P54_FILTER_TYPE_PROMISCUOUS))
 350                         mode |= P54_FILTER_TYPE_TRANSPARENT;
 351         } else {
 352                 mode = P54_FILTER_TYPE_HIBERNATE;
 353         }
 354
 355         setup->mac_mode = cpu_to_le16(mode);
 356         memcpy(setup->mac_addr, priv->mac_addr, ETH_ALEN);
 357         memcpy(setup->bssid, priv->bssid, ETH_ALEN);
 358         setup->rx_antenna = 2 & priv->rx_diversity_mask; /* automatic */
 359         setup->rx_align = 0;
 360         if (priv->fw_var < 0x500) {
 361                 setup->v1.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
 362                 memset(setup->v1.rts_rates, 0, 8);
 363                 setup->v1.rx_addr = cpu_to_le32(priv->rx_end);
 364                 setup->v1.max_rx = cpu_to_le16(priv->rx_mtu);
 365                 setup->v1.rxhw = cpu_to_le16(priv->rxhw);
 366                 setup->v1.wakeup_timer = cpu_to_le16(priv->wakeup_timer);
 367                 setup->v1.unalloc0 = cpu_to_le16(0);
 368         } else {
 369                 setup->v2.rx_addr = cpu_to_le32(priv->rx_end);
 370                 setup->v2.max_rx = cpu_to_le16(priv->rx_mtu);
 371                 setup->v2.rxhw = cpu_to_le16(priv->rxhw);
 372                 setup->v2.timer = cpu_to_le16(priv->wakeup_timer);
 373                 setup->v2.truncate = cpu_to_le16(48896);
 374                 setup->v2.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
 375                 setup->v2.sbss_offset = 0;
 376                 setup->v2.mcast_window = 0;
 377                 setup->v2.rx_rssi_threshold = 0;
 378                 setup->v2.rx_ed_threshold = 0;
 379                 setup->v2.ref_clock = cpu_to_le32(644245094);
 380                 setup->v2.lpf_bandwidth = cpu_to_le16(65535);
 381                 setup->v2.osc_start_delay = cpu_to_le16(65535);
 382         }
 383         p54_tx(priv, skb);
 384         return 0;
 385 }
 386
 387 int p54_scan(struct p54_common *priv, u16 mode, u16 dwell)
 388 {
 389         struct sk_buff *skb;
 390         struct p54_hdr *hdr;
 391         struct p54_scan_head *head;
 392         struct p54_iq_autocal_entry *iq_autocal;
 393         union p54_scan_body_union *body;
 394         struct p54_scan_tail_rate *rate;
 395         struct pda_rssi_cal_entry *rssi;
 396         unsigned int i;
 397         void *entry;
 398         int band = priv->hw->conf.channel->band;
 399         __le16 freq = cpu_to_le16(priv->hw->conf.channel->center_freq);
 400
 401         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*head) +
 402                             2 + sizeof(*iq_autocal) + sizeof(*body) +
 403                             sizeof(*rate) + 2 * sizeof(*rssi),
 404                             P54_CONTROL_TYPE_SCAN, GFP_ATOMIC);
 405         if (!skb)
 406                 return -ENOMEM;
 407
 408         head = (struct p54_scan_head *) skb_put(skb, sizeof(*head));
 409         memset(head->scan_params, 0, sizeof(head->scan_params));
 410         head->mode = cpu_to_le16(mode);
 411         head->dwell = cpu_to_le16(dwell);
 412         head->freq = freq;
 413
 414         if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
 415                 __le16 *pa_power_points = (__le16 *) skb_put(skb, 2);
 416                 *pa_power_points = cpu_to_le16(0x0c);
 417         }
 418
 419         iq_autocal = (void *) skb_put(skb, sizeof(*iq_autocal));
 420         for (i = 0; i < priv->iq_autocal_len; i++) {
 421                 if (priv->iq_autocal[i].freq != freq)
 422                         continue;
 423
 424                 memcpy(iq_autocal, &priv->iq_autocal[i].params,
 425                        sizeof(struct p54_iq_autocal_entry));
 426                 break;
 427         }
 428         if (i == priv->iq_autocal_len)
 429                 goto err;
 430
 431         if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW)
 432                 body = (void *) skb_put(skb, sizeof(body->longbow));
 433         else
 434                 body = (void *) skb_put(skb, sizeof(body->normal));
 435
 436         for (i = 0; i < priv->output_limit->entries; i++) {
 437                 __le16 *entry_freq = (void *) (priv->output_limit->data +
 438                                      priv->output_limit->entry_size * i);
 439
 440                 if (*entry_freq != freq)
 441                         continue;
 442
 443                 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
 444                         memcpy(&body->longbow.power_limits,
 445                                (void *) entry_freq + sizeof(__le16),
 446                                priv->output_limit->entry_size);
 447                 } else {
 448                         struct pda_channel_output_limit *limits =
 449                                (void *) entry_freq;
 450
 451                         body->normal.val_barker = 0x38;
 452                         body->normal.val_bpsk = body->normal.dup_bpsk =
 453                                 limits->val_bpsk;
 454                         body->normal.val_qpsk = body->normal.dup_qpsk =
 455                                 limits->val_qpsk;
 456                         body->normal.val_16qam = body->normal.dup_16qam =
 457                                 limits->val_16qam;
 458                         body->normal.val_64qam = body->normal.dup_64qam =
 459                                 limits->val_64qam;
 460                 }
 461                 break;
 462         }
 463         if (i == priv->output_limit->entries)
 464                 goto err;
 465
 466         entry = (void *)(priv->curve_data->data + priv->curve_data->offset);
 467         for (i = 0; i < priv->curve_data->entries; i++) {
 468                 if (*((__le16 *)entry) != freq) {
 469                         entry += priv->curve_data->entry_size;
 470                         continue;
 471                 }
 472
 473                 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
 474                         memcpy(&body->longbow.curve_data,
 475                                 (void *) entry + sizeof(__le16),
 476                                 priv->curve_data->entry_size);
 477                 } else {
 478                         struct p54_scan_body *chan = &body->normal;
 479                         struct pda_pa_curve_data *curve_data =
 480                                 (void *) priv->curve_data->data;
 481
 482                         entry += sizeof(__le16);
 483                         chan->pa_points_per_curve = 8;
 484                         memset(chan->curve_data, 0, sizeof(*chan->curve_data));
 485                         memcpy(chan->curve_data, entry,
 486                                sizeof(struct p54_pa_curve_data_sample) *
 487                                min((u8)8, curve_data->points_per_channel));
 488                 }
 489                 break;
 490         }
 491         if (i == priv->curve_data->entries)
 492                 goto err;
 493
 494         if ((priv->fw_var >= 0x500) && (priv->fw_var < 0x509)) {
 495                 rate = (void *) skb_put(skb, sizeof(*rate));
 496                 rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
 497                 for (i = 0; i < sizeof(rate->rts_rates); i++)
 498                         rate->rts_rates[i] = i;
 499         }
 500
 501         rssi = (struct pda_rssi_cal_entry *) skb_put(skb, sizeof(*rssi));
 502         rssi->mul = cpu_to_le16(priv->rssical_db[band].mul);
 503         rssi->add = cpu_to_le16(priv->rssical_db[band].add);
 504         if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
 505                 /* Longbow frontend needs ever more */
 506                 rssi = (void *) skb_put(skb, sizeof(*rssi));
 507                 rssi->mul = cpu_to_le16(priv->rssical_db[band].longbow_unkn);
 508                 rssi->add = cpu_to_le16(priv->rssical_db[band].longbow_unk2);
 509         }
 510
 511         if (priv->fw_var >= 0x509) {
 512                 rate = (void *) skb_put(skb, sizeof(*rate));
 513                 rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
 514                 for (i = 0; i < sizeof(rate->rts_rates); i++)
 515                         rate->rts_rates[i] = i;
 516         }
 517
 518         hdr = (struct p54_hdr *) skb->data;
 519         hdr->len = cpu_to_le16(skb->len - sizeof(*hdr));
 520
 521         p54_tx(priv, skb);
 522         return 0;
 523
 524 err:
 525         printk(KERN_ERR "%s: frequency change to channel %d failed.\n",
 526                wiphy_name(priv->hw->wiphy), ieee80211_frequency_to_channel(
 527                priv->hw->conf.channel->center_freq));
 528
 529         dev_kfree_skb_any(skb);
 530         return -EINVAL;
 531 }
 532
 533 int p54_set_leds(struct p54_common *priv)
 534 {
 535         struct sk_buff *skb;
 536         struct p54_led *led;
 537
 538         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*led),
 539                             P54_CONTROL_TYPE_LED, GFP_ATOMIC);
 540         if (unlikely(!skb))
 541                 return -ENOMEM;
 542
 543         led = (struct p54_led *) skb_put(skb, sizeof(*led));
 544         led->flags = cpu_to_le16(0x0003);
 545         led->mask[0] = led->mask[1] = cpu_to_le16(priv->softled_state);
 546         led->delay[0] = cpu_to_le16(1);
 547         led->delay[1] = cpu_to_le16(0);
 548         p54_tx(priv, skb);
 549         return 0;
 550 }
 551
 552 int p54_set_edcf(struct p54_common *priv)
 553 {
 554         struct sk_buff *skb;
 555         struct p54_edcf *edcf;
 556
 557         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*edcf),
 558                             P54_CONTROL_TYPE_DCFINIT, GFP_ATOMIC);
 559         if (unlikely(!skb))
 560                 return -ENOMEM;
 561
 562         edcf = (struct p54_edcf *)skb_put(skb, sizeof(*edcf));
 563         if (priv->use_short_slot) {
 564                 edcf->slottime = 9;
 565                 edcf->sifs = 0x10;
 566                 edcf->eofpad = 0x00;
 567         } else {
 568                 edcf->slottime = 20;
 569                 edcf->sifs = 0x0a;
 570                 edcf->eofpad = 0x06;
 571         }
 572         /* (see prism54/isl_oid.h for further details) */
 573         edcf->frameburst = cpu_to_le16(0);
 574         edcf->round_trip_delay = cpu_to_le16(0);
 575         edcf->flags = 0;
 576         memset(edcf->mapping, 0, sizeof(edcf->mapping));
 577         memcpy(edcf->queue, priv->qos_params, sizeof(edcf->queue));
 578         p54_tx(priv, skb);
 579         return 0;
 580 }
 581
 582 int p54_set_ps(struct p54_common *priv)
 583 {
 584         struct sk_buff *skb;
 585         struct p54_psm *psm;
 586         unsigned int i;
 587         u16 mode;
 588
 589         if (priv->hw->conf.flags & IEEE80211_CONF_PS &&
 590             !priv->powersave_override)
 591                 mode = P54_PSM | P54_PSM_BEACON_TIMEOUT | P54_PSM_DTIM |
 592                        P54_PSM_CHECKSUM | P54_PSM_MCBC;
 593         else
 594                 mode = P54_PSM_CAM;
 595
 596         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*psm),
 597                             P54_CONTROL_TYPE_PSM, GFP_ATOMIC);
 598         if (!skb)
 599                 return -ENOMEM;
 600
 601         psm = (struct p54_psm *)skb_put(skb, sizeof(*psm));
 602         psm->mode = cpu_to_le16(mode);
 603         psm->aid = cpu_to_le16(priv->aid);
 604         for (i = 0; i < ARRAY_SIZE(psm->intervals); i++) {
 605                 psm->intervals[i].interval =
 606                         cpu_to_le16(priv->hw->conf.listen_interval);
 607                 psm->intervals[i].periods = cpu_to_le16(1);
 608         }
 609
 610         psm->beacon_rssi_skip_max = 200;
 611         psm->rssi_delta_threshold = 0;
 612         psm->nr = 1;
 613         psm->exclude[0] = WLAN_EID_TIM;
 614
 615         p54_tx(priv, skb);
 616         return 0;
 617 }
 618
 619 int p54_init_xbow_synth(struct p54_common *priv)
 620 {
 621         struct sk_buff *skb;
 622         struct p54_xbow_synth *xbow;
 623
 624         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*xbow),
 625                             P54_CONTROL_TYPE_XBOW_SYNTH_CFG, GFP_KERNEL);
 626         if (unlikely(!skb))
 627                 return -ENOMEM;
 628
 629         xbow = (struct p54_xbow_synth *)skb_put(skb, sizeof(*xbow));
 630         xbow->magic1 = cpu_to_le16(0x1);
 631         xbow->magic2 = cpu_to_le16(0x2);
 632         xbow->freq = cpu_to_le16(5390);
 633         memset(xbow->padding, 0, sizeof(xbow->padding));
 634         p54_tx(priv, skb);
 635         return 0;
 636 }
 637
 638 int p54_upload_key(struct p54_common *priv, u8 algo, int slot, u8 idx, u8 len,
 639                    u8 *addr, u8* key)
 640 {
 641         struct sk_buff *skb;
 642         struct p54_keycache *rxkey;
 643
 644         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*rxkey),
 645                             P54_CONTROL_TYPE_RX_KEYCACHE, GFP_KERNEL);
 646         if (unlikely(!skb))
 647                 return -ENOMEM;
 648
 649         rxkey = (struct p54_keycache *)skb_put(skb, sizeof(*rxkey));
 650         rxkey->entry = slot;
 651         rxkey->key_id = idx;
 652         rxkey->key_type = algo;
 653         if (addr)
 654                 memcpy(rxkey->mac, addr, ETH_ALEN);
 655         else
 656                 memset(rxkey->mac, ~0, ETH_ALEN);
 657
 658         switch (algo) {
 659         case P54_CRYPTO_WEP:
 660         case P54_CRYPTO_AESCCMP:
 661                 rxkey->key_len = min_t(u8, 16, len);
 662                 memcpy(rxkey->key, key, rxkey->key_len);
 663                 break;
 664
 665         case P54_CRYPTO_TKIPMICHAEL:
 666                 rxkey->key_len = 24;
 667                 memcpy(rxkey->key, key, 16);
 668                 memcpy(&(rxkey->key[16]), &(key
 669                         [NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY]), 8);
 670                 break;
 671
 672         case P54_CRYPTO_NONE:
 673                 rxkey->key_len = 0;
 674                 memset(rxkey->key, 0, sizeof(rxkey->key));
 675                 break;
 676
 677         default:
 678                 printk(KERN_ERR "%s: invalid cryptographic algorithm: %d\n",
 679                        wiphy_name(priv->hw->wiphy), algo);
 680                 dev_kfree_skb(skb);
 681                 return -EINVAL;
 682         }
 683
 684         p54_tx(priv, skb);
 685         return 0;
 686 }
 687
 688 int p54_fetch_statistics(struct p54_common *priv)
 689 {
 690         struct ieee80211_tx_info *txinfo;
 691         struct p54_tx_info *p54info;
 692         struct sk_buff *skb;
 693
 694         skb = p54_alloc_skb(priv, P54_HDR_FLAG_CONTROL,
 695                             sizeof(struct p54_statistics),
 696                             P54_CONTROL_TYPE_STAT_READBACK, GFP_KERNEL);
 697         if (!skb)
 698                 return -ENOMEM;
 699
 700         /*
 701          * The statistic feedback causes some extra headaches here, if it
 702          * is not to crash/corrupt the firmware data structures.
 703          *
 704          * Unlike all other Control Get OIDs we can not use helpers like
 705          * skb_put to reserve the space for the data we're requesting.
 706          * Instead the extra frame length -which will hold the results later-
 707          * will only be told to the p54_assign_address, so that following
 708          * frames won't be placed into the  allegedly empty area.
 709          */
 710         txinfo = IEEE80211_SKB_CB(skb);
 711         p54info = (void *) txinfo->rate_driver_data;
 712         p54info->extra_len = sizeof(struct p54_statistics);
 713
 714         p54_tx(priv, skb);
 715         return 0;
 716 }