Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 | /******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
/*
* Please use this file (iwl-dev.h) for driver implementation definitions.
* Please use iwl-commands.h for uCode API definitions.
* Please use iwl-4965-hw.h for hardware-related definitions.
*/
#ifndef __iwl_legacy_dev_h__
#define __iwl_legacy_dev_h__
#include <linux/interrupt.h>
#include <linux/pci.h> /* for struct pci_device_id */
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/wait.h>
#include <net/ieee80211_radiotap.h>
#include "iwl-eeprom.h"
#include "iwl-csr.h"
#include "iwl-prph.h"
#include "iwl-fh.h"
#include "iwl-debug.h"
#include "iwl-4965-hw.h"
#include "iwl-3945-hw.h"
#include "iwl-led.h"
#include "iwl-power.h"
#include "iwl-legacy-rs.h"
struct iwl_tx_queue;
/* CT-KILL constants */
#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
/* Default noise level to report when noise measurement is not available.
* This may be because we're:
* 1) Not associated (4965, no beacon statistics being sent to driver)
* 2) Scanning (noise measurement does not apply to associated channel)
* 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
* Use default noise value of -127 ... this is below the range of measurable
* Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
* Also, -127 works better than 0 when averaging frames with/without
* noise info (e.g. averaging might be done in app); measured dBm values are
* always negative ... using a negative value as the default keeps all
* averages within an s8's (used in some apps) range of negative values. */
#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
/*
* RTS threshold here is total size [2347] minus 4 FCS bytes
* Per spec:
* a value of 0 means RTS on all data/management packets
* a value > max MSDU size means no RTS
* else RTS for data/management frames where MPDU is larger
* than RTS value.
*/
#define DEFAULT_RTS_THRESHOLD 2347U
#define MIN_RTS_THRESHOLD 0U
#define MAX_RTS_THRESHOLD 2347U
#define MAX_MSDU_SIZE 2304U
#define MAX_MPDU_SIZE 2346U
#define DEFAULT_BEACON_INTERVAL 100U
#define DEFAULT_SHORT_RETRY_LIMIT 7U
#define DEFAULT_LONG_RETRY_LIMIT 4U
struct iwl_rx_mem_buffer {
dma_addr_t page_dma;
struct page *page;
struct list_head list;
};
#define rxb_addr(r) page_address(r->page)
/* defined below */
struct iwl_device_cmd;
struct iwl_cmd_meta {
/* only for SYNC commands, iff the reply skb is wanted */
struct iwl_host_cmd *source;
/*
* only for ASYNC commands
* (which is somewhat stupid -- look at iwl-sta.c for instance
* which duplicates a bunch of code because the callback isn't
* invoked for SYNC commands, if it were and its result passed
* through it would be simpler...)
*/
void (*callback)(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt);
/* The CMD_SIZE_HUGE flag bit indicates that the command
* structure is stored at the end of the shared queue memory. */
u32 flags;
DEFINE_DMA_UNMAP_ADDR(mapping);
DEFINE_DMA_UNMAP_LEN(len);
};
/*
* Generic queue structure
*
* Contains common data for Rx and Tx queues
*/
struct iwl_queue {
int n_bd; /* number of BDs in this queue */
int write_ptr; /* 1-st empty entry (index) host_w*/
int read_ptr; /* last used entry (index) host_r*/
/* use for monitoring and recovering the stuck queue */
dma_addr_t dma_addr; /* physical addr for BD's */
int n_window; /* safe queue window */
u32 id;
int low_mark; /* low watermark, resume queue if free
* space more than this */
int high_mark; /* high watermark, stop queue if free
* space less than this */
};
/* One for each TFD */
struct iwl_tx_info {
struct sk_buff *skb;
struct iwl_rxon_context *ctx;
};
/**
* struct iwl_tx_queue - Tx Queue for DMA
* @q: generic Rx/Tx queue descriptor
* @bd: base of circular buffer of TFDs
* @cmd: array of command/TX buffer pointers
* @meta: array of meta data for each command/tx buffer
* @dma_addr_cmd: physical address of cmd/tx buffer array
* @txb: array of per-TFD driver data
* @time_stamp: time (in jiffies) of last read_ptr change
* @need_update: indicates need to update read/write index
* @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
*
* A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
* descriptors) and required locking structures.
*/
#define TFD_TX_CMD_SLOTS 256
#define TFD_CMD_SLOTS 32
struct iwl_tx_queue {
struct iwl_queue q;
void *tfds;
struct iwl_device_cmd **cmd;
struct iwl_cmd_meta *meta;
struct iwl_tx_info *txb;
unsigned long time_stamp;
u8 need_update;
u8 sched_retry;
u8 active;
u8 swq_id;
};
#define IWL_NUM_SCAN_RATES (2)
struct iwl4965_channel_tgd_info {
u8 type;
s8 max_power;
};
struct iwl4965_channel_tgh_info {
s64 last_radar_time;
};
#define IWL4965_MAX_RATE (33)
struct iwl3945_clip_group {
/* maximum power level to prevent clipping for each rate, derived by
* us from this band's saturation power in EEPROM */
const s8 clip_powers[IWL_MAX_RATES];
};
/* current Tx power values to use, one for each rate for each channel.
* requested power is limited by:
* -- regulatory EEPROM limits for this channel
* -- hardware capabilities (clip-powers)
* -- spectrum management
* -- user preference (e.g. iwconfig)
* when requested power is set, base power index must also be set. */
struct iwl3945_channel_power_info {
struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
s8 power_table_index; /* actual (compenst'd) index into gain table */
s8 base_power_index; /* gain index for power at factory temp. */
s8 requested_power; /* power (dBm) requested for this chnl/rate */
};
/* current scan Tx power values to use, one for each scan rate for each
* channel. */
struct iwl3945_scan_power_info {
struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
s8 power_table_index; /* actual (compenst'd) index into gain table */
s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
};
/*
* One for each channel, holds all channel setup data
* Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
* with one another!
*/
struct iwl_channel_info {
struct iwl4965_channel_tgd_info tgd;
struct iwl4965_channel_tgh_info tgh;
struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
* HT40 channel */
u8 channel; /* channel number */
u8 flags; /* flags copied from EEPROM */
s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
s8 min_power; /* always 0 */
s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
enum ieee80211_band band;
/* HT40 channel info */
s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
u8 ht40_flags; /* flags copied from EEPROM */
u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
/* Radio/DSP gain settings for each "normal" data Tx rate.
* These include, in addition to RF and DSP gain, a few fields for
* remembering/modifying gain settings (indexes). */
struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
/* Radio/DSP gain settings for each scan rate, for directed scans. */
struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
};
#define IWL_TX_FIFO_BK 0 /* shared */
#define IWL_TX_FIFO_BE 1
#define IWL_TX_FIFO_VI 2 /* shared */
#define IWL_TX_FIFO_VO 3
#define IWL_TX_FIFO_UNUSED -1
/* Minimum number of queues. MAX_NUM is defined in hw specific files.
* Set the minimum to accommodate the 4 standard TX queues, 1 command
* queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
#define IWL_MIN_NUM_QUEUES 10
#define IWL_DEFAULT_CMD_QUEUE_NUM 4
#define IEEE80211_DATA_LEN 2304
#define IEEE80211_4ADDR_LEN 30
#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
struct iwl_frame {
union {
struct ieee80211_hdr frame;
struct iwl_tx_beacon_cmd beacon;
u8 raw[IEEE80211_FRAME_LEN];
u8 cmd[360];
} u;
struct list_head list;
};
#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
enum {
CMD_SYNC = 0,
CMD_SIZE_NORMAL = 0,
CMD_NO_SKB = 0,
CMD_SIZE_HUGE = (1 << 0),
CMD_ASYNC = (1 << 1),
CMD_WANT_SKB = (1 << 2),
CMD_MAPPED = (1 << 3),
};
#define DEF_CMD_PAYLOAD_SIZE 320
/**
* struct iwl_device_cmd
*
* For allocation of the command and tx queues, this establishes the overall
* size of the largest command we send to uCode, except for a scan command
* (which is relatively huge; space is allocated separately).
*/
struct iwl_device_cmd {
struct iwl_cmd_header hdr; /* uCode API */
union {
u32 flags;
u8 val8;
u16 val16;
u32 val32;
struct iwl_tx_cmd tx;
u8 payload[DEF_CMD_PAYLOAD_SIZE];
} __packed cmd;
} __packed;
#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
struct iwl_host_cmd {
const void *data;
unsigned long reply_page;
void (*callback)(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt);
u32 flags;
u16 len;
u8 id;
};
#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
/**
* struct iwl_rx_queue - Rx queue
* @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
* @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
* @read: Shared index to newest available Rx buffer
* @write: Shared index to oldest written Rx packet
* @free_count: Number of pre-allocated buffers in rx_free
* @rx_free: list of free SKBs for use
* @rx_used: List of Rx buffers with no SKB
* @need_update: flag to indicate we need to update read/write index
* @rb_stts: driver's pointer to receive buffer status
* @rb_stts_dma: bus address of receive buffer status
*
* NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
*/
struct iwl_rx_queue {
__le32 *bd;
dma_addr_t bd_dma;
struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
u32 read;
u32 write;
u32 free_count;
u32 write_actual;
struct list_head rx_free;
struct list_head rx_used;
int need_update;
struct iwl_rb_status *rb_stts;
dma_addr_t rb_stts_dma;
spinlock_t lock;
};
#define IWL_SUPPORTED_RATES_IE_LEN 8
#define MAX_TID_COUNT 9
#define IWL_INVALID_RATE 0xFF
#define IWL_INVALID_VALUE -1
/**
* struct iwl_ht_agg -- aggregation status while waiting for block-ack
* @txq_id: Tx queue used for Tx attempt
* @frame_count: # frames attempted by Tx command
* @wait_for_ba: Expect block-ack before next Tx reply
* @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
* @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
* @bitmap1: High order, one bit for each frame pending ACK in Tx window
* @rate_n_flags: Rate at which Tx was attempted
*
* If REPLY_TX indicates that aggregation was attempted, driver must wait
* for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
* until block ack arrives.
*/
struct iwl_ht_agg {
u16 txq_id;
u16 frame_count;
u16 wait_for_ba;
u16 start_idx;
u64 bitmap;
u32 rate_n_flags;
#define IWL_AGG_OFF 0
#define IWL_AGG_ON 1
#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
#define IWL_EMPTYING_HW_QUEUE_DELBA 3
u8 state;
};
struct iwl_tid_data {
u16 seq_number; /* 4965 only */
u16 tfds_in_queue;
struct iwl_ht_agg agg;
};
struct iwl_hw_key {
u32 cipher;
int keylen;
u8 keyidx;
u8 key[32];
};
union iwl_ht_rate_supp {
u16 rates;
struct {
u8 siso_rate;
u8 mimo_rate;
};
};
#define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
#define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
#define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
#define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
#define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
#define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
#define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
/*
* Maximal MPDU density for TX aggregation
* 4 - 2us density
* 5 - 4us density
* 6 - 8us density
* 7 - 16us density
*/
#define CFG_HT_MPDU_DENSITY_2USEC (0x4)
#define CFG_HT_MPDU_DENSITY_4USEC (0x5)
#define CFG_HT_MPDU_DENSITY_8USEC (0x6)
#define CFG_HT_MPDU_DENSITY_16USEC (0x7)
#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
#define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
#define CFG_HT_MPDU_DENSITY_MIN (0x1)
struct iwl_ht_config {
bool single_chain_sufficient;
enum ieee80211_smps_mode smps; /* current smps mode */
};
/* QoS structures */
struct iwl_qos_info {
int qos_active;
struct iwl_qosparam_cmd def_qos_parm;
};
/*
* Structure should be accessed with sta_lock held. When station addition
* is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
* the commands (iwl_legacy_addsta_cmd and iwl_link_quality_cmd) without
* sta_lock held.
*/
struct iwl_station_entry {
struct iwl_legacy_addsta_cmd sta;
struct iwl_tid_data tid[MAX_TID_COUNT];
u8 used, ctxid;
struct iwl_hw_key keyinfo;
struct iwl_link_quality_cmd *lq;
};
struct iwl_station_priv_common {
struct iwl_rxon_context *ctx;
u8 sta_id;
};
/*
* iwl_station_priv: Driver's private station information
*
* When mac80211 creates a station it reserves some space (hw->sta_data_size)
* in the structure for use by driver. This structure is places in that
* space.
*
* The common struct MUST be first because it is shared between
* 3945 and 4965!
*/
struct iwl_station_priv {
struct iwl_station_priv_common common;
struct iwl_lq_sta lq_sta;
atomic_t pending_frames;
bool client;
bool asleep;
};
/**
* struct iwl_vif_priv - driver's private per-interface information
*
* When mac80211 allocates a virtual interface, it can allocate
* space for us to put data into.
*/
struct iwl_vif_priv {
struct iwl_rxon_context *ctx;
u8 ibss_bssid_sta_id;
};
/* one for each uCode image (inst/data, boot/init/runtime) */
struct fw_desc {
void *v_addr; /* access by driver */
dma_addr_t p_addr; /* access by card's busmaster DMA */
u32 len; /* bytes */
};
/* uCode file layout */
struct iwl_ucode_header {
__le32 ver; /* major/minor/API/serial */
struct {
__le32 inst_size; /* bytes of runtime code */
__le32 data_size; /* bytes of runtime data */
__le32 init_size; /* bytes of init code */
__le32 init_data_size; /* bytes of init data */
__le32 boot_size; /* bytes of bootstrap code */
u8 data[0]; /* in same order as sizes */
} v1;
};
struct iwl4965_ibss_seq {
u8 mac[ETH_ALEN];
u16 seq_num;
u16 frag_num;
unsigned long packet_time;
struct list_head list;
};
struct iwl_sensitivity_ranges {
u16 min_nrg_cck;
u16 max_nrg_cck;
u16 nrg_th_cck;
u16 nrg_th_ofdm;
u16 auto_corr_min_ofdm;
u16 auto_corr_min_ofdm_mrc;
u16 auto_corr_min_ofdm_x1;
u16 auto_corr_min_ofdm_mrc_x1;
u16 auto_corr_max_ofdm;
u16 auto_corr_max_ofdm_mrc;
u16 auto_corr_max_ofdm_x1;
u16 auto_corr_max_ofdm_mrc_x1;
u16 auto_corr_max_cck;
u16 auto_corr_max_cck_mrc;
u16 auto_corr_min_cck;
u16 auto_corr_min_cck_mrc;
u16 barker_corr_th_min;
u16 barker_corr_th_min_mrc;
u16 nrg_th_cca;
};
#define KELVIN_TO_CELSIUS(x) ((x)-273)
#define CELSIUS_TO_KELVIN(x) ((x)+273)
/**
* struct iwl_hw_params
* @max_txq_num: Max # Tx queues supported
* @dma_chnl_num: Number of Tx DMA/FIFO channels
* @scd_bc_tbls_size: size of scheduler byte count tables
* @tfd_size: TFD size
* @tx/rx_chains_num: Number of TX/RX chains
* @valid_tx/rx_ant: usable antennas
* @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
* @max_rxq_log: Log-base-2 of max_rxq_size
* @rx_page_order: Rx buffer page order
* @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
* @max_stations:
* @ht40_channel: is 40MHz width possible in band 2.4
* BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
* @sw_crypto: 0 for hw, 1 for sw
* @max_xxx_size: for ucode uses
* @ct_kill_threshold: temperature threshold
* @beacon_time_tsf_bits: number of valid tsf bits for beacon time
* @struct iwl_sensitivity_ranges: range of sensitivity values
*/
struct iwl_hw_params {
u8 max_txq_num;
u8 dma_chnl_num;
u16 scd_bc_tbls_size;
u32 tfd_size;
u8 tx_chains_num;
u8 rx_chains_num;
u8 valid_tx_ant;
u8 valid_rx_ant;
u16 max_rxq_size;
u16 max_rxq_log;
u32 rx_page_order;
u32 rx_wrt_ptr_reg;
u8 max_stations;
u8 ht40_channel;
u8 max_beacon_itrvl; /* in 1024 ms */
u32 max_inst_size;
u32 max_data_size;
u32 max_bsm_size;
u32 ct_kill_threshold; /* value in hw-dependent units */
u16 beacon_time_tsf_bits;
const struct iwl_sensitivity_ranges *sens;
};
/******************************************************************************
*
* Functions implemented in core module which are forward declared here
* for use by iwl-[4-5].c
*
* NOTE: The implementation of these functions are not hardware specific
* which is why they are in the core module files.
*
* Naming convention --
* iwl_ <-- Is part of iwlwifi
* iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
* iwl4965_bg_ <-- Called from work queue context
* iwl4965_mac_ <-- mac80211 callback
*
****************************************************************************/
extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
extern const u8 iwlegacy_bcast_addr[ETH_ALEN];
extern int iwl_legacy_queue_space(const struct iwl_queue *q);
static inline int iwl_legacy_queue_used(const struct iwl_queue *q, int i)
{
return q->write_ptr >= q->read_ptr ?
(i >= q->read_ptr && i < q->write_ptr) :
!(i < q->read_ptr && i >= q->write_ptr);
}
static inline u8 iwl_legacy_get_cmd_index(struct iwl_queue *q, u32 index,
int is_huge)
{
/*
* This is for init calibration result and scan command which
* required buffer > TFD_MAX_PAYLOAD_SIZE,
* the big buffer at end of command array
*/
if (is_huge)
return q->n_window; /* must be power of 2 */
/* Otherwise, use normal size buffers */
return index & (q->n_window - 1);
}
struct iwl_dma_ptr {
dma_addr_t dma;
void *addr;
size_t size;
};
#define IWL_OPERATION_MODE_AUTO 0
#define IWL_OPERATION_MODE_HT_ONLY 1
#define IWL_OPERATION_MODE_MIXED 2
#define IWL_OPERATION_MODE_20MHZ 3
#define IWL_TX_CRC_SIZE 4
#define IWL_TX_DELIMITER_SIZE 4
#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
/* Sensitivity and chain noise calibration */
#define INITIALIZATION_VALUE 0xFFFF
#define IWL4965_CAL_NUM_BEACONS 20
#define IWL_CAL_NUM_BEACONS 16
#define MAXIMUM_ALLOWED_PATHLOSS 15
#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
#define MAX_FA_OFDM 50
#define MIN_FA_OFDM 5
#define MAX_FA_CCK 50
#define MIN_FA_CCK 5
#define AUTO_CORR_STEP_OFDM 1
#define AUTO_CORR_STEP_CCK 3
#define AUTO_CORR_MAX_TH_CCK 160
#define NRG_DIFF 2
#define NRG_STEP_CCK 2
#define NRG_MARGIN 8
#define MAX_NUMBER_CCK_NO_FA 100
#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
#define CHAIN_A 0
#define CHAIN_B 1
#define CHAIN_C 2
#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
#define ALL_BAND_FILTER 0xFF00
#define IN_BAND_FILTER 0xFF
#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
#define NRG_NUM_PREV_STAT_L 20
#define NUM_RX_CHAINS 3
enum iwl4965_false_alarm_state {
IWL_FA_TOO_MANY = 0,
IWL_FA_TOO_FEW = 1,
IWL_FA_GOOD_RANGE = 2,
};
enum iwl4965_chain_noise_state {
IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
IWL_CHAIN_NOISE_ACCUMULATE,
IWL_CHAIN_NOISE_CALIBRATED,
IWL_CHAIN_NOISE_DONE,
};
enum iwl4965_calib_enabled_state {
IWL_CALIB_DISABLED = 0, /* must be 0 */
IWL_CALIB_ENABLED = 1,
};
/*
* enum iwl_calib
* defines the order in which results of initial calibrations
* should be sent to the runtime uCode
*/
enum iwl_calib {
IWL_CALIB_MAX,
};
/* Opaque calibration results */
struct iwl_calib_result {
void *buf;
size_t buf_len;
};
enum ucode_type {
UCODE_NONE = 0,
UCODE_INIT,
UCODE_RT
};
/* Sensitivity calib data */
struct iwl_sensitivity_data {
u32 auto_corr_ofdm;
u32 auto_corr_ofdm_mrc;
u32 auto_corr_ofdm_x1;
u32 auto_corr_ofdm_mrc_x1;
u32 auto_corr_cck;
u32 auto_corr_cck_mrc;
u32 last_bad_plcp_cnt_ofdm;
u32 last_fa_cnt_ofdm;
u32 last_bad_plcp_cnt_cck;
u32 last_fa_cnt_cck;
u32 nrg_curr_state;
u32 nrg_prev_state;
u32 nrg_value[10];
u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
u32 nrg_silence_ref;
u32 nrg_energy_idx;
u32 nrg_silence_idx;
u32 nrg_th_cck;
s32 nrg_auto_corr_silence_diff;
u32 num_in_cck_no_fa;
u32 nrg_th_ofdm;
u16 barker_corr_th_min;
u16 barker_corr_th_min_mrc;
u16 nrg_th_cca;
};
/* Chain noise (differential Rx gain) calib data */
struct iwl_chain_noise_data {
u32 active_chains;
u32 chain_noise_a;
u32 chain_noise_b;
u32 chain_noise_c;
u32 chain_signal_a;
u32 chain_signal_b;
u32 chain_signal_c;
u16 beacon_count;
u8 disconn_array[NUM_RX_CHAINS];
u8 delta_gain_code[NUM_RX_CHAINS];
u8 radio_write;
u8 state;
};
#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
#define IWL_TRAFFIC_ENTRIES (256)
#define IWL_TRAFFIC_ENTRY_SIZE (64)
enum {
MEASUREMENT_READY = (1 << 0),
MEASUREMENT_ACTIVE = (1 << 1),
};
/* interrupt statistics */
struct isr_statistics {
u32 hw;
u32 sw;
u32 err_code;
u32 sch;
u32 alive;
u32 rfkill;
u32 ctkill;
u32 wakeup;
u32 rx;
u32 rx_handlers[REPLY_MAX];
u32 tx;
u32 unhandled;
};
/* management statistics */
enum iwl_mgmt_stats {
MANAGEMENT_ASSOC_REQ = 0,
MANAGEMENT_ASSOC_RESP,
MANAGEMENT_REASSOC_REQ,
MANAGEMENT_REASSOC_RESP,
MANAGEMENT_PROBE_REQ,
MANAGEMENT_PROBE_RESP,
MANAGEMENT_BEACON,
MANAGEMENT_ATIM,
MANAGEMENT_DISASSOC,
MANAGEMENT_AUTH,
MANAGEMENT_DEAUTH,
MANAGEMENT_ACTION,
MANAGEMENT_MAX,
};
/* control statistics */
enum iwl_ctrl_stats {
CONTROL_BACK_REQ = 0,
CONTROL_BACK,
CONTROL_PSPOLL,
CONTROL_RTS,
CONTROL_CTS,
CONTROL_ACK,
CONTROL_CFEND,
CONTROL_CFENDACK,
CONTROL_MAX,
};
struct traffic_stats {
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
u32 mgmt[MANAGEMENT_MAX];
u32 ctrl[CONTROL_MAX];
u32 data_cnt;
u64 data_bytes;
#endif
};
/*
* host interrupt timeout value
* used with setting interrupt coalescing timer
* the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
*
* default interrupt coalescing timer is 64 x 32 = 2048 usecs
* default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
*/
#define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
#define IWL_HOST_INT_TIMEOUT_DEF (0x40)
#define IWL_HOST_INT_TIMEOUT_MIN (0x0)
#define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
#define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
#define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
/* TX queue watchdog timeouts in mSecs */
#define IWL_DEF_WD_TIMEOUT (2000)
#define IWL_LONG_WD_TIMEOUT (10000)
#define IWL_MAX_WD_TIMEOUT (120000)
struct iwl_force_reset {
int reset_request_count;
int reset_success_count;
int reset_reject_count;
unsigned long reset_duration;
unsigned long last_force_reset_jiffies;
};
/* extend beacon time format bit shifting */
/*
* for _3945 devices
* bits 31:24 - extended
* bits 23:0 - interval
*/
#define IWL3945_EXT_BEACON_TIME_POS 24
/*
* for _4965 devices
* bits 31:22 - extended
* bits 21:0 - interval
*/
#define IWL4965_EXT_BEACON_TIME_POS 22
enum iwl_rxon_context_id {
IWL_RXON_CTX_BSS,
NUM_IWL_RXON_CTX
};
struct iwl_rxon_context {
struct ieee80211_vif *vif;
const u8 *ac_to_fifo;
const u8 *ac_to_queue;
u8 mcast_queue;
/*
* We could use the vif to indicate active, but we
* also need it to be active during disabling when
* we already removed the vif for type setting.
*/
bool always_active, is_active;
bool ht_need_multiple_chains;
enum iwl_rxon_context_id ctxid;
u32 interface_modes, exclusive_interface_modes;
u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
/*
* We declare this const so it can only be
* changed via explicit cast within the
* routines that actually update the physical
* hardware.
*/
const struct iwl_legacy_rxon_cmd active;
struct iwl_legacy_rxon_cmd staging;
struct iwl_rxon_time_cmd timing;
struct iwl_qos_info qos_data;
u8 bcast_sta_id, ap_sta_id;
u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
u8 qos_cmd;
u8 wep_key_cmd;
struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
u8 key_mapping_keys;
__le32 station_flags;
struct {
bool non_gf_sta_present;
u8 protection;
bool enabled, is_40mhz;
u8 extension_chan_offset;
} ht;
};
struct iwl_priv {
/* ieee device used by generic ieee processing code */
struct ieee80211_hw *hw;
struct ieee80211_channel *ieee_channels;
struct ieee80211_rate *ieee_rates;
struct iwl_cfg *cfg;
/* temporary frame storage list */
struct list_head free_frames;
int frames_count;
enum ieee80211_band band;
int alloc_rxb_page;
void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
/* spectrum measurement report caching */
struct iwl_spectrum_notification measure_report;
u8 measurement_status;
/* ucode beacon time */
u32 ucode_beacon_time;
int missed_beacon_threshold;
/* track IBSS manager (last beacon) status */
u32 ibss_manager;
/* force reset */
struct iwl_force_reset force_reset;
/* we allocate array of iwl_channel_info for NIC's valid channels.
* Access via channel # using indirect index array */
struct iwl_channel_info *channel_info; /* channel info array */
u8 channel_count; /* # of channels */
/* thermal calibration */
s32 temperature; /* degrees Kelvin */
s32 last_temperature;
/* init calibration results */
struct iwl_calib_result calib_results[IWL_CALIB_MAX];
/* Scan related variables */
unsigned long scan_start;
unsigned long scan_start_tsf;
void *scan_cmd;
enum ieee80211_band scan_band;
struct cfg80211_scan_request *scan_request;
struct ieee80211_vif *scan_vif;
u8 scan_tx_ant[IEEE80211_NUM_BANDS];
u8 mgmt_tx_ant;
/* spinlock */
spinlock_t lock; /* protect general shared data */
spinlock_t hcmd_lock; /* protect hcmd */
spinlock_t reg_lock; /* protect hw register access */
struct mutex mutex;
/* basic pci-network driver stuff */
struct pci_dev *pci_dev;
/* pci hardware address support */
void __iomem *hw_base;
u32 hw_rev;
u32 hw_wa_rev;
u8 rev_id;
/* microcode/device supports multiple contexts */
u8 valid_contexts;
/* command queue number */
u8 cmd_queue;
/* max number of station keys */
u8 sta_key_max_num;
/* EEPROM MAC addresses */
struct mac_address addresses[1];
/* uCode images, save to reload in case of failure */
int fw_index; /* firmware we're trying to load */
u32 ucode_ver; /* version of ucode, copy of
iwl_ucode.ver */
struct fw_desc ucode_code; /* runtime inst */
struct fw_desc ucode_data; /* runtime data original */
struct fw_desc ucode_data_backup; /* runtime data save/restore */
struct fw_desc ucode_init; /* initialization inst */
struct fw_desc ucode_init_data; /* initialization data */
struct fw_desc ucode_boot; /* bootstrap inst */
enum ucode_type ucode_type;
u8 ucode_write_complete; /* the image write is complete */
char firmware_name[25];
struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
__le16 switch_channel;
/* 1st responses from initialize and runtime uCode images.
* _4965's initialize alive response contains some calibration data. */
struct iwl_init_alive_resp card_alive_init;
struct iwl_alive_resp card_alive;
u16 active_rate;
u8 start_calib;
struct iwl_sensitivity_data sensitivity_data;
struct iwl_chain_noise_data chain_noise_data;
__le16 sensitivity_tbl[HD_TABLE_SIZE];
struct iwl_ht_config current_ht_config;
/* Rate scaling data */
u8 retry_rate;
wait_queue_head_t wait_command_queue;
int activity_timer_active;
/* Rx and Tx DMA processing queues */
struct iwl_rx_queue rxq;
struct iwl_tx_queue *txq;
unsigned long txq_ctx_active_msk;
struct iwl_dma_ptr kw; /* keep warm address */
struct iwl_dma_ptr scd_bc_tbls;
u32 scd_base_addr; /* scheduler sram base address */
unsigned long status;
/* counts mgmt, ctl, and data packets */
struct traffic_stats tx_stats;
struct traffic_stats rx_stats;
/* counts interrupts */
struct isr_statistics isr_stats;
struct iwl_power_mgr power_data;
/* context information */
u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */
/* station table variables */
/* Note: if lock and sta_lock are needed, lock must be acquired first */
spinlock_t sta_lock;
int num_stations;
struct iwl_station_entry stations[IWL_STATION_COUNT];
unsigned long ucode_key_table;
/* queue refcounts */
#define IWL_MAX_HW_QUEUES 32
unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
/* for each AC */
atomic_t queue_stop_count[4];
/* Indication if ieee80211_ops->open has been called */
u8 is_open;
u8 mac80211_registered;
/* eeprom -- this is in the card's little endian byte order */
u8 *eeprom;
struct iwl_eeprom_calib_info *calib_info;
enum nl80211_iftype iw_mode;
/* Last Rx'd beacon timestamp */
u64 timestamp;
union {
#if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
struct {
void *shared_virt;
dma_addr_t shared_phys;
struct delayed_work thermal_periodic;
struct delayed_work rfkill_poll;
struct iwl3945_notif_statistics statistics;
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
struct iwl3945_notif_statistics accum_statistics;
struct iwl3945_notif_statistics delta_statistics;
struct iwl3945_notif_statistics max_delta;
#endif
u32 sta_supp_rates;
int last_rx_rssi; /* From Rx packet statistics */
/* Rx'd packet timing information */
u32 last_beacon_time;
u64 last_tsf;
/*
* each calibration channel group in the
* EEPROM has a derived clip setting for
* each rate.
*/
const struct iwl3945_clip_group clip_groups[5];
} _3945;
#endif
#if defined(CONFIG_IWL4965) || defined(CONFIG_IWL4965_MODULE)
struct {
struct iwl_rx_phy_res last_phy_res;
bool last_phy_res_valid;
struct completion firmware_loading_complete;
/*
* chain noise reset and gain commands are the
* two extra calibration commands follows the standard
* phy calibration commands
*/
u8 phy_calib_chain_noise_reset_cmd;
u8 phy_calib_chain_noise_gain_cmd;
struct iwl_notif_statistics statistics;
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
struct iwl_notif_statistics accum_statistics;
struct iwl_notif_statistics delta_statistics;
struct iwl_notif_statistics max_delta;
#endif
} _4965;
#endif
};
struct iwl_hw_params hw_params;
u32 inta_mask;
struct workqueue_struct *workqueue;
struct work_struct restart;
struct work_struct scan_completed;
struct work_struct rx_replenish;
struct work_struct abort_scan;
struct iwl_rxon_context *beacon_ctx;
struct sk_buff *beacon_skb;
struct work_struct tx_flush;
struct tasklet_struct irq_tasklet;
struct delayed_work init_alive_start;
struct delayed_work alive_start;
struct delayed_work scan_check;
/* TX Power */
s8 tx_power_user_lmt;
s8 tx_power_device_lmt;
s8 tx_power_next;
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
/* debugging info */
u32 debug_level; /* per device debugging will override global
iwlegacy_debug_level if set */
#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
/* debugfs */
u16 tx_traffic_idx;
u16 rx_traffic_idx;
u8 *tx_traffic;
u8 *rx_traffic;
struct dentry *debugfs_dir;
u32 dbgfs_sram_offset, dbgfs_sram_len;
bool disable_ht40;
#endif /* CONFIG_IWLWIFI_LEGACY_DEBUGFS */
struct work_struct txpower_work;
u32 disable_sens_cal;
u32 disable_chain_noise_cal;
u32 disable_tx_power_cal;
struct work_struct run_time_calib_work;
struct timer_list statistics_periodic;
struct timer_list watchdog;
bool hw_ready;
struct led_classdev led;
unsigned long blink_on, blink_off;
bool led_registered;
}; /*iwl_priv */
static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
{
set_bit(txq_id, &priv->txq_ctx_active_msk);
}
static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
{
clear_bit(txq_id, &priv->txq_ctx_active_msk);
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
/*
* iwl_legacy_get_debug_level: Return active debug level for device
*
* Using sysfs it is possible to set per device debug level. This debug
* level will be used if set, otherwise the global debug level which can be
* set via module parameter is used.
*/
static inline u32 iwl_legacy_get_debug_level(struct iwl_priv *priv)
{
if (priv->debug_level)
return priv->debug_level;
else
return iwlegacy_debug_level;
}
#else
static inline u32 iwl_legacy_get_debug_level(struct iwl_priv *priv)
{
return iwlegacy_debug_level;
}
#endif
static inline struct ieee80211_hdr *
iwl_legacy_tx_queue_get_hdr(struct iwl_priv *priv,
int txq_id, int idx)
{
if (priv->txq[txq_id].txb[idx].skb)
return (struct ieee80211_hdr *)priv->txq[txq_id].
txb[idx].skb->data;
return NULL;
}
static inline struct iwl_rxon_context *
iwl_legacy_rxon_ctx_from_vif(struct ieee80211_vif *vif)
{
struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
return vif_priv->ctx;
}
#define for_each_context(priv, ctx) \
for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
if (priv->valid_contexts & BIT(ctx->ctxid))
static inline int iwl_legacy_is_associated(struct iwl_priv *priv,
enum iwl_rxon_context_id ctxid)
{
return (priv->contexts[ctxid].active.filter_flags &
RXON_FILTER_ASSOC_MSK) ? 1 : 0;
}
static inline int iwl_legacy_is_any_associated(struct iwl_priv *priv)
{
return iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS);
}
static inline int iwl_legacy_is_associated_ctx(struct iwl_rxon_context *ctx)
{
return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
}
static inline int iwl_legacy_is_channel_valid(const struct iwl_channel_info *ch_info)
{
if (ch_info == NULL)
return 0;
return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
}
static inline int iwl_legacy_is_channel_radar(const struct iwl_channel_info *ch_info)
{
return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
}
static inline u8 iwl_legacy_is_channel_a_band(const struct iwl_channel_info *ch_info)
{
return ch_info->band == IEEE80211_BAND_5GHZ;
}
static inline int
iwl_legacy_is_channel_passive(const struct iwl_channel_info *ch)
{
return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
}
static inline int
iwl_legacy_is_channel_ibss(const struct iwl_channel_info *ch)
{
return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0;
}
static inline void
__iwl_legacy_free_pages(struct iwl_priv *priv, struct page *page)
{
__free_pages(page, priv->hw_params.rx_page_order);
priv->alloc_rxb_page--;
}
static inline void iwl_legacy_free_pages(struct iwl_priv *priv, unsigned long page)
{
free_pages(page, priv->hw_params.rx_page_order);
priv->alloc_rxb_page--;
}
#endif /* __iwl_legacy_dev_h__ */
|