drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16 #include <linux/kernel.h>
  17 #include <linux/string.h>
  18 #include <linux/sched.h>
  19 #include <linux/netdevice.h>
  20 #include <asm/unaligned.h>
  21 #include <defs.h>
  22 #include <brcmu_wifi.h>
  23 #include <brcmu_utils.h>
  24 #include "dhd.h"
  25 #include "dhd_bus.h"
  26 #include "dhd_proto.h"
  27 #include "dhd_dbg.h"
  28
  29 #define BRCM_OUI                        "\x00\x10\x18"
  30 #define DOT11_OUI_LEN                   3
  31 #define BCMILCP_BCM_SUBTYPE_EVENT       1
  32 #define PKTFILTER_BUF_SIZE              2048
  33 #define BRCMF_ARPOL_MODE                0xb     /* agent|snoop|peer_autoreply */
  34
  35 int brcmf_msg_level;
  36
  37 #define MSGTRACE_VERSION        1
  38
  39 #define BRCMF_PKT_FILTER_FIXED_LEN      offsetof(struct brcmf_pkt_filter_le, u)
  40 #define BRCMF_PKT_FILTER_PATTERN_FIXED_LEN      \
  41         offsetof(struct brcmf_pkt_filter_pattern_le, mask_and_pattern)
  42
  43 #ifdef BCMDBG
  44 static const char brcmf_version[] =
  45         "Dongle Host Driver, version " BRCMF_VERSION_STR "\nCompiled on "
  46         __DATE__ " at " __TIME__;
  47 #else
  48 static const char brcmf_version[] =
  49         "Dongle Host Driver, version " BRCMF_VERSION_STR;
  50 #endif
  51
  52 /* Message trace header */
  53 struct msgtrace_hdr {
  54         u8 version;
  55         u8 spare;
  56         __be16 len;             /* Len of the trace */
  57         __be32 seqnum;          /* Sequence number of message. Useful
  58                                  * if the messsage has been lost
  59                                  * because of DMA error or a bus reset
  60                                  * (ex: SDIO Func2)
  61                                  */
  62         __be32 discarded_bytes; /* Number of discarded bytes because of
  63                                  trace overflow  */
  64         __be32 discarded_printf;        /* Number of discarded printf
  65                                  because of trace overflow */
  66 } __packed;
  67
  68
  69 uint
  70 brcmf_c_mkiovar(char *name, char *data, uint datalen, char *buf, uint buflen)
  71 {
  72         uint len;
  73
  74         len = strlen(name) + 1;
  75
  76         if ((len + datalen) > buflen)
  77                 return 0;
  78
  79         strncpy(buf, name, buflen);
  80
  81         /* append data onto the end of the name string */
  82         memcpy(&buf[len], data, datalen);
  83         len += datalen;
  84
  85         return len;
  86 }
  87
  88 void brcmf_c_init(void)
  89 {
  90         /* Init global variables at run-time, not as part of the declaration.
  91          * This is required to support init/de-init of the driver.
  92          * Initialization
  93          * of globals as part of the declaration results in non-deterministic
  94          * behaviour since the value of the globals may be different on the
  95          * first time that the driver is initialized vs subsequent
  96          * initializations.
  97          */
  98         brcmf_msg_level = BRCMF_ERROR_VAL;
  99 }
 100
 101 bool brcmf_c_prec_enq(struct brcmf_pub *drvr, struct pktq *q,
 102                       struct sk_buff *pkt, int prec)
 103 {
 104         struct sk_buff *p;
 105         int eprec = -1;         /* precedence to evict from */
 106         bool discard_oldest;
 107
 108         /* Fast case, precedence queue is not full and we are also not
 109          * exceeding total queue length
 110          */
 111         if (!pktq_pfull(q, prec) && !pktq_full(q)) {
 112                 brcmu_pktq_penq(q, prec, pkt);
 113                 return true;
 114         }
 115
 116         /* Determine precedence from which to evict packet, if any */
 117         if (pktq_pfull(q, prec))
 118                 eprec = prec;
 119         else if (pktq_full(q)) {
 120                 p = brcmu_pktq_peek_tail(q, &eprec);
 121                 if (eprec > prec)
 122                         return false;
 123         }
 124
 125         /* Evict if needed */
 126         if (eprec >= 0) {
 127                 /* Detect queueing to unconfigured precedence */
 128                 discard_oldest = ac_bitmap_tst(drvr->wme_dp, eprec);
 129                 if (eprec == prec && !discard_oldest)
 130                         return false;   /* refuse newer (incoming) packet */
 131                 /* Evict packet according to discard policy */
 132                 p = discard_oldest ? brcmu_pktq_pdeq(q, eprec) :
 133                         brcmu_pktq_pdeq_tail(q, eprec);
 134                 if (p == NULL)
 135                         brcmf_dbg(ERROR, "brcmu_pktq_penq() failed, oldest %d\n",
 136                                   discard_oldest);
 137
 138                 brcmu_pkt_buf_free_skb(p);
 139         }
 140
 141         /* Enqueue */
 142         p = brcmu_pktq_penq(q, prec, pkt);
 143         if (p == NULL)
 144                 brcmf_dbg(ERROR, "brcmu_pktq_penq() failed\n");
 145
 146         return p != NULL;
 147 }
 148
 149 #ifdef BCMDBG
 150 static void
 151 brcmf_c_show_host_event(struct brcmf_event_msg *event, void *event_data)
 152 {
 153         uint i, status, reason;
 154         bool group = false, flush_txq = false, link = false;
 155         char *auth_str, *event_name;
 156         unsigned char *buf;
 157         char err_msg[256], eabuf[ETHER_ADDR_STR_LEN];
 158         static struct {
 159                 uint event;
 160                 char *event_name;
 161         } event_names[] = {
 162                 {
 163                 BRCMF_E_SET_SSID, "SET_SSID"}, {
 164                 BRCMF_E_JOIN, "JOIN"}, {
 165                 BRCMF_E_START, "START"}, {
 166                 BRCMF_E_AUTH, "AUTH"}, {
 167                 BRCMF_E_AUTH_IND, "AUTH_IND"}, {
 168                 BRCMF_E_DEAUTH, "DEAUTH"}, {
 169                 BRCMF_E_DEAUTH_IND, "DEAUTH_IND"}, {
 170                 BRCMF_E_ASSOC, "ASSOC"}, {
 171                 BRCMF_E_ASSOC_IND, "ASSOC_IND"}, {
 172                 BRCMF_E_REASSOC, "REASSOC"}, {
 173                 BRCMF_E_REASSOC_IND, "REASSOC_IND"}, {
 174                 BRCMF_E_DISASSOC, "DISASSOC"}, {
 175                 BRCMF_E_DISASSOC_IND, "DISASSOC_IND"}, {
 176                 BRCMF_E_QUIET_START, "START_QUIET"}, {
 177                 BRCMF_E_QUIET_END, "END_QUIET"}, {
 178                 BRCMF_E_BEACON_RX, "BEACON_RX"}, {
 179                 BRCMF_E_LINK, "LINK"}, {
 180                 BRCMF_E_MIC_ERROR, "MIC_ERROR"}, {
 181                 BRCMF_E_NDIS_LINK, "NDIS_LINK"}, {
 182                 BRCMF_E_ROAM, "ROAM"}, {
 183                 BRCMF_E_TXFAIL, "TXFAIL"}, {
 184                 BRCMF_E_PMKID_CACHE, "PMKID_CACHE"}, {
 185                 BRCMF_E_RETROGRADE_TSF, "RETROGRADE_TSF"}, {
 186                 BRCMF_E_PRUNE, "PRUNE"}, {
 187                 BRCMF_E_AUTOAUTH, "AUTOAUTH"}, {
 188                 BRCMF_E_EAPOL_MSG, "EAPOL_MSG"}, {
 189                 BRCMF_E_SCAN_COMPLETE, "SCAN_COMPLETE"}, {
 190                 BRCMF_E_ADDTS_IND, "ADDTS_IND"}, {
 191                 BRCMF_E_DELTS_IND, "DELTS_IND"}, {
 192                 BRCMF_E_BCNSENT_IND, "BCNSENT_IND"}, {
 193                 BRCMF_E_BCNRX_MSG, "BCNRX_MSG"}, {
 194                 BRCMF_E_BCNLOST_MSG, "BCNLOST_MSG"}, {
 195                 BRCMF_E_ROAM_PREP, "ROAM_PREP"}, {
 196                 BRCMF_E_PFN_NET_FOUND, "PNO_NET_FOUND"}, {
 197                 BRCMF_E_PFN_NET_LOST, "PNO_NET_LOST"}, {
 198                 BRCMF_E_RESET_COMPLETE, "RESET_COMPLETE"}, {
 199                 BRCMF_E_JOIN_START, "JOIN_START"}, {
 200                 BRCMF_E_ROAM_START, "ROAM_START"}, {
 201                 BRCMF_E_ASSOC_START, "ASSOC_START"}, {
 202                 BRCMF_E_IBSS_ASSOC, "IBSS_ASSOC"}, {
 203                 BRCMF_E_RADIO, "RADIO"}, {
 204                 BRCMF_E_PSM_WATCHDOG, "PSM_WATCHDOG"}, {
 205                 BRCMF_E_PROBREQ_MSG, "PROBREQ_MSG"}, {
 206                 BRCMF_E_SCAN_CONFIRM_IND, "SCAN_CONFIRM_IND"}, {
 207                 BRCMF_E_PSK_SUP, "PSK_SUP"}, {
 208                 BRCMF_E_COUNTRY_CODE_CHANGED, "COUNTRY_CODE_CHANGED"}, {
 209                 BRCMF_E_EXCEEDED_MEDIUM_TIME, "EXCEEDED_MEDIUM_TIME"}, {
 210                 BRCMF_E_ICV_ERROR, "ICV_ERROR"}, {
 211                 BRCMF_E_UNICAST_DECODE_ERROR, "UNICAST_DECODE_ERROR"}, {
 212                 BRCMF_E_MULTICAST_DECODE_ERROR, "MULTICAST_DECODE_ERROR"}, {
 213                 BRCMF_E_TRACE, "TRACE"}, {
 214                 BRCMF_E_ACTION_FRAME, "ACTION FRAME"}, {
 215                 BRCMF_E_ACTION_FRAME_COMPLETE, "ACTION FRAME TX COMPLETE"}, {
 216                 BRCMF_E_IF, "IF"}, {
 217                 BRCMF_E_RSSI, "RSSI"}, {
 218                 BRCMF_E_PFN_SCAN_COMPLETE, "SCAN_COMPLETE"}
 219         };
 220         uint event_type, flags, auth_type, datalen;
 221         static u32 seqnum_prev;
 222         struct msgtrace_hdr hdr;
 223         u32 nblost;
 224         char *s, *p;
 225
 226         event_type = be32_to_cpu(event->event_type);
 227         flags = be16_to_cpu(event->flags);
 228         status = be32_to_cpu(event->status);
 229         reason = be32_to_cpu(event->reason);
 230         auth_type = be32_to_cpu(event->auth_type);
 231         datalen = be32_to_cpu(event->datalen);
 232         /* debug dump of event messages */
 233         sprintf(eabuf, "%pM", event->addr);
 234
 235         event_name = "UNKNOWN";
 236         for (i = 0; i < ARRAY_SIZE(event_names); i++) {
 237                 if (event_names[i].event == event_type)
 238                         event_name = event_names[i].event_name;
 239         }
 240
 241         brcmf_dbg(EVENT, "EVENT: %s, event ID = %d\n", event_name, event_type);
 242         brcmf_dbg(EVENT, "flags 0x%04x, status %d, reason %d, auth_type %d MAC %s\n",
 243                   flags, status, reason, auth_type, eabuf);
 244
 245         if (flags & BRCMF_EVENT_MSG_LINK)
 246                 link = true;
 247         if (flags & BRCMF_EVENT_MSG_GROUP)
 248                 group = true;
 249         if (flags & BRCMF_EVENT_MSG_FLUSHTXQ)
 250                 flush_txq = true;
 251
 252         switch (event_type) {
 253         case BRCMF_E_START:
 254         case BRCMF_E_DEAUTH:
 255         case BRCMF_E_DISASSOC:
 256                 brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s\n", event_name, eabuf);
 257                 break;
 258
 259         case BRCMF_E_ASSOC_IND:
 260         case BRCMF_E_REASSOC_IND:
 261                 brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s\n", event_name, eabuf);
 262                 break;
 263
 264         case BRCMF_E_ASSOC:
 265         case BRCMF_E_REASSOC:
 266                 if (status == BRCMF_E_STATUS_SUCCESS)
 267                         brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, SUCCESS\n",
 268                                   event_name, eabuf);
 269                 else if (status == BRCMF_E_STATUS_TIMEOUT)
 270                         brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, TIMEOUT\n",
 271                                   event_name, eabuf);
 272                 else if (status == BRCMF_E_STATUS_FAIL)
 273                         brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, FAILURE, reason %d\n",
 274                                   event_name, eabuf, (int)reason);
 275                 else
 276                         brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, unexpected status %d\n",
 277                                   event_name, eabuf, (int)status);
 278                 break;
 279
 280         case BRCMF_E_DEAUTH_IND:
 281         case BRCMF_E_DISASSOC_IND:
 282                 brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, reason %d\n",
 283                           event_name, eabuf, (int)reason);
 284                 break;
 285
 286         case BRCMF_E_AUTH:
 287         case BRCMF_E_AUTH_IND:
 288                 if (auth_type == WLAN_AUTH_OPEN)
 289                         auth_str = "Open System";
 290                 else if (auth_type == WLAN_AUTH_SHARED_KEY)
 291                         auth_str = "Shared Key";
 292                 else {
 293                         sprintf(err_msg, "AUTH unknown: %d", (int)auth_type);
 294                         auth_str = err_msg;
 295                 }
 296                 if (event_type == BRCMF_E_AUTH_IND)
 297                         brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, %s\n",
 298                                   event_name, eabuf, auth_str);
 299                 else if (status == BRCMF_E_STATUS_SUCCESS)
 300                         brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, %s, SUCCESS\n",
 301                                   event_name, eabuf, auth_str);
 302                 else if (status == BRCMF_E_STATUS_TIMEOUT)
 303                         brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, %s, TIMEOUT\n",
 304                                   event_name, eabuf, auth_str);
 305                 else if (status == BRCMF_E_STATUS_FAIL) {
 306                         brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, %s, FAILURE, reason %d\n",
 307                                   event_name, eabuf, auth_str, (int)reason);
 308                 }
 309
 310                 break;
 311
 312         case BRCMF_E_JOIN:
 313         case BRCMF_E_ROAM:
 314         case BRCMF_E_SET_SSID:
 315                 if (status == BRCMF_E_STATUS_SUCCESS)
 316                         brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s\n",
 317                                   event_name, eabuf);
 318                 else if (status == BRCMF_E_STATUS_FAIL)
 319                         brcmf_dbg(EVENT, "MACEVENT: %s, failed\n", event_name);
 320                 else if (status == BRCMF_E_STATUS_NO_NETWORKS)
 321                         brcmf_dbg(EVENT, "MACEVENT: %s, no networks found\n",
 322                                   event_name);
 323                 else
 324                         brcmf_dbg(EVENT, "MACEVENT: %s, unexpected status %d\n",
 325                                   event_name, (int)status);
 326                 break;
 327
 328         case BRCMF_E_BEACON_RX:
 329                 if (status == BRCMF_E_STATUS_SUCCESS)
 330                         brcmf_dbg(EVENT, "MACEVENT: %s, SUCCESS\n", event_name);
 331                 else if (status == BRCMF_E_STATUS_FAIL)
 332                         brcmf_dbg(EVENT, "MACEVENT: %s, FAIL\n", event_name);
 333                 else
 334                         brcmf_dbg(EVENT, "MACEVENT: %s, status %d\n",
 335                                   event_name, status);
 336                 break;
 337
 338         case BRCMF_E_LINK:
 339                 brcmf_dbg(EVENT, "MACEVENT: %s %s\n",
 340                           event_name, link ? "UP" : "DOWN");
 341                 break;
 342
 343         case BRCMF_E_MIC_ERROR:
 344                 brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, Group %d, Flush %d\n",
 345                           event_name, eabuf, group, flush_txq);
 346                 break;
 347
 348         case BRCMF_E_ICV_ERROR:
 349         case BRCMF_E_UNICAST_DECODE_ERROR:
 350         case BRCMF_E_MULTICAST_DECODE_ERROR:
 351                 brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s\n", event_name, eabuf);
 352                 break;
 353
 354         case BRCMF_E_TXFAIL:
 355                 brcmf_dbg(EVENT, "MACEVENT: %s, RA %s\n", event_name, eabuf);
 356                 break;
 357
 358         case BRCMF_E_SCAN_COMPLETE:
 359         case BRCMF_E_PMKID_CACHE:
 360                 brcmf_dbg(EVENT, "MACEVENT: %s\n", event_name);
 361                 break;
 362
 363         case BRCMF_E_PFN_NET_FOUND:
 364         case BRCMF_E_PFN_NET_LOST:
 365         case BRCMF_E_PFN_SCAN_COMPLETE:
 366                 brcmf_dbg(EVENT, "PNOEVENT: %s\n", event_name);
 367                 break;
 368
 369         case BRCMF_E_PSK_SUP:
 370         case BRCMF_E_PRUNE:
 371                 brcmf_dbg(EVENT, "MACEVENT: %s, status %d, reason %d\n",
 372                           event_name, (int)status, (int)reason);
 373                 break;
 374
 375         case BRCMF_E_TRACE:
 376                 buf = (unsigned char *) event_data;
 377                 memcpy(&hdr, buf, sizeof(struct msgtrace_hdr));
 378
 379                 if (hdr.version != MSGTRACE_VERSION) {
 380                         brcmf_dbg(ERROR,
 381                                   "MACEVENT: %s [unsupported version --> brcmf"
 382                                   " version:%d dongle version:%d]\n",
 383                                   event_name, MSGTRACE_VERSION, hdr.version);
 384                         /* Reset datalen to avoid display below */
 385                         datalen = 0;
 386                         break;
 387                 }
 388
 389                 /* There are 2 bytes available at the end of data */
 390                 *(buf + sizeof(struct msgtrace_hdr)
 391                          + be16_to_cpu(hdr.len)) = '\0';
 392
 393                 if (be32_to_cpu(hdr.discarded_bytes)
 394                     || be32_to_cpu(hdr.discarded_printf))
 395                         brcmf_dbg(ERROR,
 396                                   "WLC_E_TRACE: [Discarded traces in dongle -->"
 397                                   " discarded_bytes %d discarded_printf %d]\n",
 398                                   be32_to_cpu(hdr.discarded_bytes),
 399                                   be32_to_cpu(hdr.discarded_printf));
 400
 401                 nblost = be32_to_cpu(hdr.seqnum) - seqnum_prev - 1;
 402                 if (nblost > 0)
 403                         brcmf_dbg(ERROR, "WLC_E_TRACE: [Event lost --> seqnum "
 404                                   " %d nblost %d\n", be32_to_cpu(hdr.seqnum),
 405                                   nblost);
 406                 seqnum_prev = be32_to_cpu(hdr.seqnum);
 407
 408                 /* Display the trace buffer. Advance from \n to \n to
 409                  * avoid display big
 410                  * printf (issue with Linux printk )
 411                  */
 412                 p = (char *)&buf[sizeof(struct msgtrace_hdr)];
 413                 while ((s = strstr(p, "\n")) != NULL) {
 414                         *s = '\0';
 415                         printk(KERN_DEBUG"%s\n", p);
 416                         p = s + 1;
 417                 }
 418                 printk(KERN_DEBUG "%s\n", p);
 419
 420                 /* Reset datalen to avoid display below */
 421                 datalen = 0;
 422                 break;
 423
 424         case BRCMF_E_RSSI:
 425                 brcmf_dbg(EVENT, "MACEVENT: %s %d\n",
 426                           event_name, be32_to_cpu(*((__be32 *)event_data)));
 427                 break;
 428
 429         default:
 430                 brcmf_dbg(EVENT,
 431                           "MACEVENT: %s %d, MAC %s, status %d, reason %d, "
 432                           "auth %d\n", event_name, event_type, eabuf,
 433                           (int)status, (int)reason, (int)auth_type);
 434                 break;
 435         }
 436
 437         /* show any appended data */
 438         if (datalen) {
 439                 buf = (unsigned char *) event_data;
 440                 brcmf_dbg(EVENT, " data (%d) : ", datalen);
 441                 for (i = 0; i < datalen; i++)
 442                         brcmf_dbg(EVENT, " 0x%02x ", *buf++);
 443                 brcmf_dbg(EVENT, "\n");
 444         }
 445 }
 446 #endif                          /* BCMDBG */
 447
 448 int
 449 brcmf_c_host_event(struct brcmf_info *drvr_priv, int *ifidx, void *pktdata,
 450                    struct brcmf_event_msg *event, void **data_ptr)
 451 {
 452         /* check whether packet is a BRCM event pkt */
 453         struct brcmf_event *pvt_data = (struct brcmf_event *) pktdata;
 454         struct brcmf_if_event *ifevent;
 455         char *event_data;
 456         u32 type, status;
 457         u16 flags;
 458         int evlen;
 459
 460         if (memcmp(BRCM_OUI, &pvt_data->hdr.oui[0], DOT11_OUI_LEN)) {
 461                 brcmf_dbg(ERROR, "mismatched OUI, bailing\n");
 462                 return -EBADE;
 463         }
 464
 465         /* BRCM event pkt may be unaligned - use xxx_ua to load user_subtype. */
 466         if (get_unaligned_be16(&pvt_data->hdr.usr_subtype) !=
 467             BCMILCP_BCM_SUBTYPE_EVENT) {
 468                 brcmf_dbg(ERROR, "mismatched subtype, bailing\n");
 469                 return -EBADE;
 470         }
 471
 472         *data_ptr = &pvt_data[1];
 473         event_data = *data_ptr;
 474
 475         /* memcpy since BRCM event pkt may be unaligned. */
 476         memcpy(event, &pvt_data->msg, sizeof(struct brcmf_event_msg));
 477
 478         type = get_unaligned_be32(&event->event_type);
 479         flags = get_unaligned_be16(&event->flags);
 480         status = get_unaligned_be32(&event->status);
 481         evlen = get_unaligned_be32(&event->datalen) +
 482                 sizeof(struct brcmf_event);
 483
 484         switch (type) {
 485         case BRCMF_E_IF:
 486                 ifevent = (struct brcmf_if_event *) event_data;
 487                 brcmf_dbg(TRACE, "if event\n");
 488
 489                 if (ifevent->ifidx > 0 && ifevent->ifidx < BRCMF_MAX_IFS) {
 490                         if (ifevent->action == BRCMF_E_IF_ADD)
 491                                 brcmf_add_if(drvr_priv, ifevent->ifidx,
 492                                              event->ifname,
 493                                              pvt_data->eth.h_dest);
 494                         else
 495                                 brcmf_del_if(drvr_priv, ifevent->ifidx);
 496                 } else {
 497                         brcmf_dbg(ERROR, "Invalid ifidx %d for %s\n",
 498                                   ifevent->ifidx, event->ifname);
 499                 }
 500
 501                 /* send up the if event: btamp user needs it */
 502                 *ifidx = brcmf_ifname2idx(drvr_priv, event->ifname);
 503                 break;
 504
 505                 /* These are what external supplicant/authenticator wants */
 506         case BRCMF_E_LINK:
 507         case BRCMF_E_ASSOC_IND:
 508         case BRCMF_E_REASSOC_IND:
 509         case BRCMF_E_DISASSOC_IND:
 510         case BRCMF_E_MIC_ERROR:
 511         default:
 512                 /* Fall through: this should get _everything_  */
 513
 514                 *ifidx = brcmf_ifname2idx(drvr_priv, event->ifname);
 515                 brcmf_dbg(TRACE, "MAC event %d, flags %x, status %x\n",
 516                           type, flags, status);
 517
 518                 /* put it back to BRCMF_E_NDIS_LINK */
 519                 if (type == BRCMF_E_NDIS_LINK) {
 520                         u32 temp1;
 521                         __be32 temp2;
 522
 523                         temp1 = get_unaligned_be32(&event->event_type);
 524                         brcmf_dbg(TRACE, "Converted to WLC_E_LINK type %d\n",
 525                                   temp1);
 526
 527                         temp2 = cpu_to_be32(BRCMF_E_NDIS_LINK);
 528                         memcpy((void *)(&pvt_data->msg.event_type), &temp2,
 529                                sizeof(pvt_data->msg.event_type));
 530                 }
 531                 break;
 532         }
 533
 534 #ifdef BCMDBG
 535         brcmf_c_show_host_event(event, event_data);
 536 #endif                          /* BCMDBG */
 537
 538         return 0;
 539 }
 540
 541 /* Convert user's input in hex pattern to byte-size mask */
 542 static int brcmf_c_pattern_atoh(char *src, char *dst)
 543 {
 544         int i;
 545         if (strncmp(src, "0x", 2) != 0 && strncmp(src, "0X", 2) != 0) {
 546                 brcmf_dbg(ERROR, "Mask invalid format. Needs to start with 0x\n");
 547                 return -EINVAL;
 548         }
 549         src = src + 2;          /* Skip past 0x */
 550         if (strlen(src) % 2 != 0) {
 551                 brcmf_dbg(ERROR, "Mask invalid format. Length must be even.\n");
 552                 return -EINVAL;
 553         }
 554         for (i = 0; *src != '\0'; i++) {
 555                 unsigned long res;
 556                 char num[3];
 557                 strncpy(num, src, 2);
 558                 num[2] = '\0';
 559                 if (kstrtoul(num, 16, &res))
 560                         return -EINVAL;
 561                 dst[i] = (u8)res;
 562                 src += 2;
 563         }
 564         return i;
 565 }
 566
 567 void
 568 brcmf_c_pktfilter_offload_enable(struct brcmf_pub *drvr, char *arg, int enable,
 569                              int master_mode)
 570 {
 571         unsigned long res;
 572         char *argv[8];
 573         int i = 0;
 574         const char *str;
 575         int buf_len;
 576         int str_len;
 577         char *arg_save = NULL, *arg_org = NULL;
 578         int rc;
 579         char buf[128];
 580         struct brcmf_pkt_filter_enable_le enable_parm;
 581         struct brcmf_pkt_filter_enable_le *pkt_filterp;
 582         __le32 mmode_le;
 583
 584         arg_save = kmalloc(strlen(arg) + 1, GFP_ATOMIC);
 585         if (!arg_save)
 586                 goto fail;
 587
 588         arg_org = arg_save;
 589         memcpy(arg_save, arg, strlen(arg) + 1);
 590
 591         argv[i] = strsep(&arg_save, " ");
 592
 593         i = 0;
 594         if (NULL == argv[i]) {
 595                 brcmf_dbg(ERROR, "No args provided\n");
 596                 goto fail;
 597         }
 598
 599         str = "pkt_filter_enable";
 600         str_len = strlen(str);
 601         strncpy(buf, str, str_len);
 602         buf[str_len] = '\0';
 603         buf_len = str_len + 1;
 604
 605         pkt_filterp = (struct brcmf_pkt_filter_enable_le *) (buf + str_len + 1);
 606
 607         /* Parse packet filter id. */
 608         enable_parm.id = 0;
 609         if (!kstrtoul(argv[i], 0, &res))
 610                 enable_parm.id = cpu_to_le32((u32)res);
 611
 612         /* Parse enable/disable value. */
 613         enable_parm.enable = cpu_to_le32(enable);
 614
 615         buf_len += sizeof(enable_parm);
 616         memcpy((char *)pkt_filterp, &enable_parm, sizeof(enable_parm));
 617
 618         /* Enable/disable the specified filter. */
 619         rc = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, buf, buf_len);
 620         rc = rc >= 0 ? 0 : rc;
 621         if (rc)
 622                 brcmf_dbg(TRACE, "failed to add pktfilter %s, retcode = %d\n",
 623                           arg, rc);
 624         else
 625                 brcmf_dbg(TRACE, "successfully added pktfilter %s\n", arg);
 626
 627         /* Contorl the master mode */
 628         mmode_le = cpu_to_le32(master_mode);
 629         brcmf_c_mkiovar("pkt_filter_mode", (char *)&mmode_le, 4, buf,
 630                     sizeof(buf));
 631         rc = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, buf,
 632                                        sizeof(buf));
 633         rc = rc >= 0 ? 0 : rc;
 634         if (rc)
 635                 brcmf_dbg(TRACE, "failed to add pktfilter %s, retcode = %d\n",
 636                           arg, rc);
 637
 638 fail:
 639         kfree(arg_org);
 640 }
 641
 642 void brcmf_c_pktfilter_offload_set(struct brcmf_pub *drvr, char *arg)
 643 {
 644         const char *str;
 645         struct brcmf_pkt_filter_le pkt_filter;
 646         struct brcmf_pkt_filter_le *pkt_filterp;
 647         unsigned long res;
 648         int buf_len;
 649         int str_len;
 650         int rc;
 651         u32 mask_size;
 652         u32 pattern_size;
 653         char *argv[8], *buf = NULL;
 654         int i = 0;
 655         char *arg_save = NULL, *arg_org = NULL;
 656
 657         arg_save = kstrdup(arg, GFP_ATOMIC);
 658         if (!arg_save)
 659                 goto fail;
 660
 661         arg_org = arg_save;
 662
 663         buf = kmalloc(PKTFILTER_BUF_SIZE, GFP_ATOMIC);
 664         if (!buf)
 665                 goto fail;
 666
 667         argv[i] = strsep(&arg_save, " ");
 668         while (argv[i++])
 669                 argv[i] = strsep(&arg_save, " ");
 670
 671         i = 0;
 672         if (NULL == argv[i]) {
 673                 brcmf_dbg(ERROR, "No args provided\n");
 674                 goto fail;
 675         }
 676
 677         str = "pkt_filter_add";
 678         strcpy(buf, str);
 679         str_len = strlen(str);
 680         buf_len = str_len + 1;
 681
 682         pkt_filterp = (struct brcmf_pkt_filter_le *) (buf + str_len + 1);
 683
 684         /* Parse packet filter id. */
 685         pkt_filter.id = 0;
 686         if (!kstrtoul(argv[i], 0, &res))
 687                 pkt_filter.id = cpu_to_le32((u32)res);
 688
 689         if (NULL == argv[++i]) {
 690                 brcmf_dbg(ERROR, "Polarity not provided\n");
 691                 goto fail;
 692         }
 693
 694         /* Parse filter polarity. */
 695         pkt_filter.negate_match = 0;
 696         if (!kstrtoul(argv[i], 0, &res))
 697                 pkt_filter.negate_match = cpu_to_le32((u32)res);
 698
 699         if (NULL == argv[++i]) {
 700                 brcmf_dbg(ERROR, "Filter type not provided\n");
 701                 goto fail;
 702         }
 703
 704         /* Parse filter type. */
 705         pkt_filter.type = 0;
 706         if (!kstrtoul(argv[i], 0, &res))
 707                 pkt_filter.type = cpu_to_le32((u32)res);
 708
 709         if (NULL == argv[++i]) {
 710                 brcmf_dbg(ERROR, "Offset not provided\n");
 711                 goto fail;
 712         }
 713
 714         /* Parse pattern filter offset. */
 715         pkt_filter.u.pattern.offset = 0;
 716         if (!kstrtoul(argv[i], 0, &res))
 717                 pkt_filter.u.pattern.offset = cpu_to_le32((u32)res);
 718
 719         if (NULL == argv[++i]) {
 720                 brcmf_dbg(ERROR, "Bitmask not provided\n");
 721                 goto fail;
 722         }
 723
 724         /* Parse pattern filter mask. */
 725         mask_size =
 726             brcmf_c_pattern_atoh
 727                    (argv[i], (char *)pkt_filterp->u.pattern.mask_and_pattern);
 728
 729         if (NULL == argv[++i]) {
 730                 brcmf_dbg(ERROR, "Pattern not provided\n");
 731                 goto fail;
 732         }
 733
 734         /* Parse pattern filter pattern. */
 735         pattern_size =
 736             brcmf_c_pattern_atoh(argv[i],
 737                                    (char *)&pkt_filterp->u.pattern.
 738                                    mask_and_pattern[mask_size]);
 739
 740         if (mask_size != pattern_size) {
 741                 brcmf_dbg(ERROR, "Mask and pattern not the same size\n");
 742                 goto fail;
 743         }
 744
 745         pkt_filter.u.pattern.size_bytes = cpu_to_le32(mask_size);
 746         buf_len += BRCMF_PKT_FILTER_FIXED_LEN;
 747         buf_len += (BRCMF_PKT_FILTER_PATTERN_FIXED_LEN + 2 * mask_size);
 748
 749         /* Keep-alive attributes are set in local
 750          * variable (keep_alive_pkt), and
 751          ** then memcpy'ed into buffer (keep_alive_pktp) since there is no
 752          ** guarantee that the buffer is properly aligned.
 753          */
 754         memcpy((char *)pkt_filterp,
 755                &pkt_filter,
 756                BRCMF_PKT_FILTER_FIXED_LEN + BRCMF_PKT_FILTER_PATTERN_FIXED_LEN);
 757
 758         rc = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, buf, buf_len);
 759         rc = rc >= 0 ? 0 : rc;
 760
 761         if (rc)
 762                 brcmf_dbg(TRACE, "failed to add pktfilter %s, retcode = %d\n",
 763                           arg, rc);
 764         else
 765                 brcmf_dbg(TRACE, "successfully added pktfilter %s\n", arg);
 766
 767 fail:
 768         kfree(arg_org);
 769
 770         kfree(buf);
 771 }
 772
 773 static void brcmf_c_arp_offload_set(struct brcmf_pub *drvr, int arp_mode)
 774 {
 775         char iovbuf[32];
 776         int retcode;
 777
 778         brcmf_c_mkiovar("arp_ol", (char *)&arp_mode, 4, iovbuf, sizeof(iovbuf));
 779         retcode = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR,
 780                                    iovbuf, sizeof(iovbuf));
 781         retcode = retcode >= 0 ? 0 : retcode;
 782         if (retcode)
 783                 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, retcode = %d\n",
 784                           arp_mode, retcode);
 785         else
 786                 brcmf_dbg(TRACE, "successfully set ARP offload mode to 0x%x\n",
 787                           arp_mode);
 788 }
 789
 790 static void brcmf_c_arp_offload_enable(struct brcmf_pub *drvr, int arp_enable)
 791 {
 792         char iovbuf[32];
 793         int retcode;
 794
 795         brcmf_c_mkiovar("arpoe", (char *)&arp_enable, 4,
 796                         iovbuf, sizeof(iovbuf));
 797         retcode = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR,
 798                                    iovbuf, sizeof(iovbuf));
 799         retcode = retcode >= 0 ? 0 : retcode;
 800         if (retcode)
 801                 brcmf_dbg(TRACE, "failed to enable ARP offload to %d, retcode = %d\n",
 802                           arp_enable, retcode);
 803         else
 804                 brcmf_dbg(TRACE, "successfully enabled ARP offload to %d\n",
 805                           arp_enable);
 806 }
 807
 808 int brcmf_c_preinit_dcmds(struct brcmf_pub *drvr)
 809 {
 810         char iovbuf[BRCMF_EVENTING_MASK_LEN + 12];      /*  Room for
 811                                  "event_msgs" + '\0' + bitvec  */
 812         uint up = 0;
 813         char buf[128], *ptr;
 814         u32 dongle_align = BRCMF_SDALIGN;
 815         u32 glom = 0;
 816         u32 roaming = 1;
 817         uint bcn_timeout = 3;
 818         int scan_assoc_time = 40;
 819         int scan_unassoc_time = 40;
 820         int i;
 821
 822         brcmf_os_proto_block(drvr);
 823
 824         /* Set Country code */
 825         if (drvr->country_code[0] != 0) {
 826                 if (brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_COUNTRY,
 827                                               drvr->country_code,
 828                                               sizeof(drvr->country_code)) < 0)
 829                         brcmf_dbg(ERROR, "country code setting failed\n");
 830         }
 831
 832         /* query for 'ver' to get version info from firmware */
 833         memset(buf, 0, sizeof(buf));
 834         ptr = buf;
 835         brcmf_c_mkiovar("ver", NULL, 0, buf, sizeof(buf));
 836         brcmf_proto_cdc_query_dcmd(drvr, 0, BRCMF_C_GET_VAR, buf, sizeof(buf));
 837         strsep(&ptr, "\n");
 838         /* Print fw version info */
 839         brcmf_dbg(ERROR, "Firmware version = %s\n", buf);
 840
 841         /* Match Host and Dongle rx alignment */
 842         brcmf_c_mkiovar("bus:txglomalign", (char *)&dongle_align, 4, iovbuf,
 843                     sizeof(iovbuf));
 844         brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
 845                                   sizeof(iovbuf));
 846
 847         /* disable glom option per default */
 848         brcmf_c_mkiovar("bus:txglom", (char *)&glom, 4, iovbuf, sizeof(iovbuf));
 849         brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
 850                                   sizeof(iovbuf));
 851
 852         /* Setup timeout if Beacons are lost and roam is off to report
 853                  link down */
 854         brcmf_c_mkiovar("bcn_timeout", (char *)&bcn_timeout, 4, iovbuf,
 855                     sizeof(iovbuf));
 856         brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
 857                                   sizeof(iovbuf));
 858
 859         /* Enable/Disable build-in roaming to allowed ext supplicant to take
 860                  of romaing */
 861         brcmf_c_mkiovar("roam_off", (char *)&roaming, 4,
 862                       iovbuf, sizeof(iovbuf));
 863         brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
 864                                   sizeof(iovbuf));
 865
 866         /* Force STA UP */
 867         brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_UP, (char *)&up, sizeof(up));
 868
 869         /* Setup event_msgs */
 870         brcmf_c_mkiovar("event_msgs", drvr->eventmask, BRCMF_EVENTING_MASK_LEN,
 871                       iovbuf, sizeof(iovbuf));
 872         brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
 873                                   sizeof(iovbuf));
 874
 875         brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_SCAN_CHANNEL_TIME,
 876                          (char *)&scan_assoc_time, sizeof(scan_assoc_time));
 877         brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_SCAN_UNASSOC_TIME,
 878                          (char *)&scan_unassoc_time, sizeof(scan_unassoc_time));
 879
 880         /* Set and enable ARP offload feature */
 881         brcmf_c_arp_offload_set(drvr, BRCMF_ARPOL_MODE);
 882         brcmf_c_arp_offload_enable(drvr, true);
 883
 884         /* Set up pkt filter */
 885         for (i = 0; i < drvr->pktfilter_count; i++) {
 886                 brcmf_c_pktfilter_offload_set(drvr, drvr->pktfilter[i]);
 887                 brcmf_c_pktfilter_offload_enable(drvr, drvr->pktfilter[i],
 888                                                  0, true);
 889         }
 890
 891         brcmf_os_proto_unblock(drvr);
 892
 893         return 0;
 894 }