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 17/* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */ 18 19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 20 21#include <linux/kernel.h> 22#include <linux/if_arp.h> 23#include <linux/sched.h> 24#include <linux/kthread.h> 25#include <linux/netdevice.h> 26#include <linux/bitops.h> 27#include <linux/etherdevice.h> 28#include <linux/ieee80211.h> 29#include <linux/uaccess.h> 30#include <net/cfg80211.h> 31 32#include <brcmu_utils.h> 33#include <defs.h> 34#include <brcmu_wifi.h> 35#include "dhd.h" 36#include "wl_cfg80211.h" 37 38#define BRCMF_ASSOC_PARAMS_FIXED_SIZE \ 39 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16)) 40 41static const u8 ether_bcast[ETH_ALEN] = {255, 255, 255, 255, 255, 255}; 42 43static u32 brcmf_dbg_level = WL_DBG_ERR; 44 45static void brcmf_set_drvdata(struct brcmf_cfg80211_dev *dev, void *data) 46{ 47 dev->driver_data = data; 48} 49 50static void *brcmf_get_drvdata(struct brcmf_cfg80211_dev *dev) 51{ 52 void *data = NULL; 53 54 if (dev) 55 data = dev->driver_data; 56 return data; 57} 58 59static 60struct brcmf_cfg80211_priv *brcmf_priv_get(struct brcmf_cfg80211_dev *cfg_dev) 61{ 62 struct brcmf_cfg80211_iface *ci = brcmf_get_drvdata(cfg_dev); 63 return ci->cfg_priv; 64} 65 66static bool check_sys_up(struct wiphy *wiphy) 67{ 68 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 69 if (!test_bit(WL_STATUS_READY, &cfg_priv->status)) { 70 WL_INFO("device is not ready : status (%d)\n", 71 (int)cfg_priv->status); 72 return false; 73 } 74 return true; 75} 76 77#define CHAN2G(_channel, _freq, _flags) { \ 78 .band = IEEE80211_BAND_2GHZ, \ 79 .center_freq = (_freq), \ 80 .hw_value = (_channel), \ 81 .flags = (_flags), \ 82 .max_antenna_gain = 0, \ 83 .max_power = 30, \ 84} 85 86#define CHAN5G(_channel, _flags) { \ 87 .band = IEEE80211_BAND_5GHZ, \ 88 .center_freq = 5000 + (5 * (_channel)), \ 89 .hw_value = (_channel), \ 90 .flags = (_flags), \ 91 .max_antenna_gain = 0, \ 92 .max_power = 30, \ 93} 94 95#define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2) 96#define RATETAB_ENT(_rateid, _flags) \ 97 { \ 98 .bitrate = RATE_TO_BASE100KBPS(_rateid), \ 99 .hw_value = (_rateid), \ 100 .flags = (_flags), \ 101 } 102 103static struct ieee80211_rate __wl_rates[] = { 104 RATETAB_ENT(BRCM_RATE_1M, 0), 105 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE), 106 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE), 107 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE), 108 RATETAB_ENT(BRCM_RATE_6M, 0), 109 RATETAB_ENT(BRCM_RATE_9M, 0), 110 RATETAB_ENT(BRCM_RATE_12M, 0), 111 RATETAB_ENT(BRCM_RATE_18M, 0), 112 RATETAB_ENT(BRCM_RATE_24M, 0), 113 RATETAB_ENT(BRCM_RATE_36M, 0), 114 RATETAB_ENT(BRCM_RATE_48M, 0), 115 RATETAB_ENT(BRCM_RATE_54M, 0), 116}; 117 118#define wl_a_rates (__wl_rates + 4) 119#define wl_a_rates_size 8 120#define wl_g_rates (__wl_rates + 0) 121#define wl_g_rates_size 12 122 123static struct ieee80211_channel __wl_2ghz_channels[] = { 124 CHAN2G(1, 2412, 0), 125 CHAN2G(2, 2417, 0), 126 CHAN2G(3, 2422, 0), 127 CHAN2G(4, 2427, 0), 128 CHAN2G(5, 2432, 0), 129 CHAN2G(6, 2437, 0), 130 CHAN2G(7, 2442, 0), 131 CHAN2G(8, 2447, 0), 132 CHAN2G(9, 2452, 0), 133 CHAN2G(10, 2457, 0), 134 CHAN2G(11, 2462, 0), 135 CHAN2G(12, 2467, 0), 136 CHAN2G(13, 2472, 0), 137 CHAN2G(14, 2484, 0), 138}; 139 140static struct ieee80211_channel __wl_5ghz_a_channels[] = { 141 CHAN5G(34, 0), CHAN5G(36, 0), 142 CHAN5G(38, 0), CHAN5G(40, 0), 143 CHAN5G(42, 0), CHAN5G(44, 0), 144 CHAN5G(46, 0), CHAN5G(48, 0), 145 CHAN5G(52, 0), CHAN5G(56, 0), 146 CHAN5G(60, 0), CHAN5G(64, 0), 147 CHAN5G(100, 0), CHAN5G(104, 0), 148 CHAN5G(108, 0), CHAN5G(112, 0), 149 CHAN5G(116, 0), CHAN5G(120, 0), 150 CHAN5G(124, 0), CHAN5G(128, 0), 151 CHAN5G(132, 0), CHAN5G(136, 0), 152 CHAN5G(140, 0), CHAN5G(149, 0), 153 CHAN5G(153, 0), CHAN5G(157, 0), 154 CHAN5G(161, 0), CHAN5G(165, 0), 155 CHAN5G(184, 0), CHAN5G(188, 0), 156 CHAN5G(192, 0), CHAN5G(196, 0), 157 CHAN5G(200, 0), CHAN5G(204, 0), 158 CHAN5G(208, 0), CHAN5G(212, 0), 159 CHAN5G(216, 0), 160}; 161 162static struct ieee80211_channel __wl_5ghz_n_channels[] = { 163 CHAN5G(32, 0), CHAN5G(34, 0), 164 CHAN5G(36, 0), CHAN5G(38, 0), 165 CHAN5G(40, 0), CHAN5G(42, 0), 166 CHAN5G(44, 0), CHAN5G(46, 0), 167 CHAN5G(48, 0), CHAN5G(50, 0), 168 CHAN5G(52, 0), CHAN5G(54, 0), 169 CHAN5G(56, 0), CHAN5G(58, 0), 170 CHAN5G(60, 0), CHAN5G(62, 0), 171 CHAN5G(64, 0), CHAN5G(66, 0), 172 CHAN5G(68, 0), CHAN5G(70, 0), 173 CHAN5G(72, 0), CHAN5G(74, 0), 174 CHAN5G(76, 0), CHAN5G(78, 0), 175 CHAN5G(80, 0), CHAN5G(82, 0), 176 CHAN5G(84, 0), CHAN5G(86, 0), 177 CHAN5G(88, 0), CHAN5G(90, 0), 178 CHAN5G(92, 0), CHAN5G(94, 0), 179 CHAN5G(96, 0), CHAN5G(98, 0), 180 CHAN5G(100, 0), CHAN5G(102, 0), 181 CHAN5G(104, 0), CHAN5G(106, 0), 182 CHAN5G(108, 0), CHAN5G(110, 0), 183 CHAN5G(112, 0), CHAN5G(114, 0), 184 CHAN5G(116, 0), CHAN5G(118, 0), 185 CHAN5G(120, 0), CHAN5G(122, 0), 186 CHAN5G(124, 0), CHAN5G(126, 0), 187 CHAN5G(128, 0), CHAN5G(130, 0), 188 CHAN5G(132, 0), CHAN5G(134, 0), 189 CHAN5G(136, 0), CHAN5G(138, 0), 190 CHAN5G(140, 0), CHAN5G(142, 0), 191 CHAN5G(144, 0), CHAN5G(145, 0), 192 CHAN5G(146, 0), CHAN5G(147, 0), 193 CHAN5G(148, 0), CHAN5G(149, 0), 194 CHAN5G(150, 0), CHAN5G(151, 0), 195 CHAN5G(152, 0), CHAN5G(153, 0), 196 CHAN5G(154, 0), CHAN5G(155, 0), 197 CHAN5G(156, 0), CHAN5G(157, 0), 198 CHAN5G(158, 0), CHAN5G(159, 0), 199 CHAN5G(160, 0), CHAN5G(161, 0), 200 CHAN5G(162, 0), CHAN5G(163, 0), 201 CHAN5G(164, 0), CHAN5G(165, 0), 202 CHAN5G(166, 0), CHAN5G(168, 0), 203 CHAN5G(170, 0), CHAN5G(172, 0), 204 CHAN5G(174, 0), CHAN5G(176, 0), 205 CHAN5G(178, 0), CHAN5G(180, 0), 206 CHAN5G(182, 0), CHAN5G(184, 0), 207 CHAN5G(186, 0), CHAN5G(188, 0), 208 CHAN5G(190, 0), CHAN5G(192, 0), 209 CHAN5G(194, 0), CHAN5G(196, 0), 210 CHAN5G(198, 0), CHAN5G(200, 0), 211 CHAN5G(202, 0), CHAN5G(204, 0), 212 CHAN5G(206, 0), CHAN5G(208, 0), 213 CHAN5G(210, 0), CHAN5G(212, 0), 214 CHAN5G(214, 0), CHAN5G(216, 0), 215 CHAN5G(218, 0), CHAN5G(220, 0), 216 CHAN5G(222, 0), CHAN5G(224, 0), 217 CHAN5G(226, 0), CHAN5G(228, 0), 218}; 219 220static struct ieee80211_supported_band __wl_band_2ghz = { 221 .band = IEEE80211_BAND_2GHZ, 222 .channels = __wl_2ghz_channels, 223 .n_channels = ARRAY_SIZE(__wl_2ghz_channels), 224 .bitrates = wl_g_rates, 225 .n_bitrates = wl_g_rates_size, 226}; 227 228static struct ieee80211_supported_band __wl_band_5ghz_a = { 229 .band = IEEE80211_BAND_5GHZ, 230 .channels = __wl_5ghz_a_channels, 231 .n_channels = ARRAY_SIZE(__wl_5ghz_a_channels), 232 .bitrates = wl_a_rates, 233 .n_bitrates = wl_a_rates_size, 234}; 235 236static struct ieee80211_supported_band __wl_band_5ghz_n = { 237 .band = IEEE80211_BAND_5GHZ, 238 .channels = __wl_5ghz_n_channels, 239 .n_channels = ARRAY_SIZE(__wl_5ghz_n_channels), 240 .bitrates = wl_a_rates, 241 .n_bitrates = wl_a_rates_size, 242}; 243 244static const u32 __wl_cipher_suites[] = { 245 WLAN_CIPHER_SUITE_WEP40, 246 WLAN_CIPHER_SUITE_WEP104, 247 WLAN_CIPHER_SUITE_TKIP, 248 WLAN_CIPHER_SUITE_CCMP, 249 WLAN_CIPHER_SUITE_AES_CMAC, 250}; 251 252/* tag_ID/length/value_buffer tuple */ 253struct brcmf_tlv { 254 u8 id; 255 u8 len; 256 u8 data[1]; 257}; 258 259/* Quarter dBm units to mW 260 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153 261 * Table is offset so the last entry is largest mW value that fits in 262 * a u16. 263 */ 264 265#define QDBM_OFFSET 153 /* Offset for first entry */ 266#define QDBM_TABLE_LEN 40 /* Table size */ 267 268/* Smallest mW value that will round up to the first table entry, QDBM_OFFSET. 269 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2 270 */ 271#define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */ 272 273/* Largest mW value that will round down to the last table entry, 274 * QDBM_OFFSET + QDBM_TABLE_LEN-1. 275 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) + 276 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2. 277 */ 278#define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */ 279 280static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = { 281/* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */ 282/* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000, 283/* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849, 284/* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119, 285/* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811, 286/* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096 287}; 288 289static u16 brcmf_qdbm_to_mw(u8 qdbm) 290{ 291 uint factor = 1; 292 int idx = qdbm - QDBM_OFFSET; 293 294 if (idx >= QDBM_TABLE_LEN) 295 /* clamp to max u16 mW value */ 296 return 0xFFFF; 297 298 /* scale the qdBm index up to the range of the table 0-40 299 * where an offset of 40 qdBm equals a factor of 10 mW. 300 */ 301 while (idx < 0) { 302 idx += 40; 303 factor *= 10; 304 } 305 306 /* return the mW value scaled down to the correct factor of 10, 307 * adding in factor/2 to get proper rounding. 308 */ 309 return (nqdBm_to_mW_map[idx] + factor / 2) / factor; 310} 311 312static u8 brcmf_mw_to_qdbm(u16 mw) 313{ 314 u8 qdbm; 315 int offset; 316 uint mw_uint = mw; 317 uint boundary; 318 319 /* handle boundary case */ 320 if (mw_uint <= 1) 321 return 0; 322 323 offset = QDBM_OFFSET; 324 325 /* move mw into the range of the table */ 326 while (mw_uint < QDBM_TABLE_LOW_BOUND) { 327 mw_uint *= 10; 328 offset -= 40; 329 } 330 331 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) { 332 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] - 333 nqdBm_to_mW_map[qdbm]) / 2; 334 if (mw_uint < boundary) 335 break; 336 } 337 338 qdbm += (u8) offset; 339 340 return qdbm; 341} 342 343/* function for reading/writing a single u32 from/to the dongle */ 344static int 345brcmf_exec_dcmd_u32(struct net_device *ndev, u32 cmd, u32 *par) 346{ 347 int err; 348 __le32 par_le = cpu_to_le32(*par); 349 350 err = brcmf_exec_dcmd(ndev, cmd, &par_le, sizeof(__le32)); 351 *par = le32_to_cpu(par_le); 352 353 return err; 354} 355 356static void convert_key_from_CPU(struct brcmf_wsec_key *key, 357 struct brcmf_wsec_key_le *key_le) 358{ 359 key_le->index = cpu_to_le32(key->index); 360 key_le->len = cpu_to_le32(key->len); 361 key_le->algo = cpu_to_le32(key->algo); 362 key_le->flags = cpu_to_le32(key->flags); 363 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi); 364 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo); 365 key_le->iv_initialized = cpu_to_le32(key->iv_initialized); 366 memcpy(key_le->data, key->data, sizeof(key->data)); 367 memcpy(key_le->ea, key->ea, sizeof(key->ea)); 368} 369 370static int send_key_to_dongle(struct net_device *ndev, 371 struct brcmf_wsec_key *key) 372{ 373 int err; 374 struct brcmf_wsec_key_le key_le; 375 376 convert_key_from_CPU(key, &key_le); 377 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_KEY, &key_le, sizeof(key_le)); 378 if (err) 379 WL_ERR("WLC_SET_KEY error (%d)\n", err); 380 return err; 381} 382 383static s32 384brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev, 385 enum nl80211_iftype type, u32 *flags, 386 struct vif_params *params) 387{ 388 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 389 struct wireless_dev *wdev; 390 s32 infra = 0; 391 s32 err = 0; 392 393 WL_TRACE("Enter\n"); 394 if (!check_sys_up(wiphy)) 395 return -EIO; 396 397 switch (type) { 398 case NL80211_IFTYPE_MONITOR: 399 case NL80211_IFTYPE_WDS: 400 WL_ERR("type (%d) : currently we do not support this type\n", 401 type); 402 return -EOPNOTSUPP; 403 case NL80211_IFTYPE_ADHOC: 404 cfg_priv->conf->mode = WL_MODE_IBSS; 405 infra = 0; 406 break; 407 case NL80211_IFTYPE_STATION: 408 cfg_priv->conf->mode = WL_MODE_BSS; 409 infra = 1; 410 break; 411 default: 412 err = -EINVAL; 413 goto done; 414 } 415 416 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &infra); 417 if (err) { 418 WL_ERR("WLC_SET_INFRA error (%d)\n", err); 419 err = -EAGAIN; 420 } else { 421 wdev = ndev->ieee80211_ptr; 422 wdev->iftype = type; 423 } 424 425 WL_INFO("IF Type = %s\n", 426 (cfg_priv->conf->mode == WL_MODE_IBSS) ? "Adhoc" : "Infra"); 427 428done: 429 WL_TRACE("Exit\n"); 430 431 return err; 432} 433 434static s32 brcmf_dev_intvar_set(struct net_device *ndev, s8 *name, s32 val) 435{ 436 s8 buf[BRCMF_DCMD_SMLEN]; 437 u32 len; 438 s32 err = 0; 439 __le32 val_le; 440 441 val_le = cpu_to_le32(val); 442 len = brcmf_c_mkiovar(name, (char *)(&val_le), sizeof(val_le), buf, 443 sizeof(buf)); 444 BUG_ON(!len); 445 446 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, buf, len); 447 if (err) 448 WL_ERR("error (%d)\n", err); 449 450 return err; 451} 452 453static s32 454brcmf_dev_intvar_get(struct net_device *ndev, s8 *name, s32 *retval) 455{ 456 union { 457 s8 buf[BRCMF_DCMD_SMLEN]; 458 __le32 val; 459 } var; 460 u32 len; 461 u32 data_null; 462 s32 err = 0; 463 464 len = 465 brcmf_c_mkiovar(name, (char *)(&data_null), 0, (char *)(&var), 466 sizeof(var.buf)); 467 BUG_ON(!len); 468 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, &var, len); 469 if (err) 470 WL_ERR("error (%d)\n", err); 471 472 *retval = le32_to_cpu(var.val); 473 474 return err; 475} 476 477static void brcmf_set_mpc(struct net_device *ndev, int mpc) 478{ 479 s32 err = 0; 480 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 481 482 if (test_bit(WL_STATUS_READY, &cfg_priv->status)) { 483 err = brcmf_dev_intvar_set(ndev, "mpc", mpc); 484 if (err) { 485 WL_ERR("fail to set mpc\n"); 486 return; 487 } 488 WL_INFO("MPC : %d\n", mpc); 489 } 490} 491 492static void wl_iscan_prep(struct brcmf_scan_params_le *params_le, 493 struct brcmf_ssid *ssid) 494{ 495 memcpy(params_le->bssid, ether_bcast, ETH_ALEN); 496 params_le->bss_type = DOT11_BSSTYPE_ANY; 497 params_le->scan_type = 0; 498 params_le->channel_num = 0; 499 params_le->nprobes = cpu_to_le32(-1); 500 params_le->active_time = cpu_to_le32(-1); 501 params_le->passive_time = cpu_to_le32(-1); 502 params_le->home_time = cpu_to_le32(-1); 503 if (ssid && ssid->SSID_len) 504 memcpy(¶ms_le->ssid_le, ssid, sizeof(struct brcmf_ssid)); 505} 506 507static s32 508brcmf_dev_iovar_setbuf(struct net_device *ndev, s8 * iovar, void *param, 509 s32 paramlen, void *bufptr, s32 buflen) 510{ 511 s32 iolen; 512 513 iolen = brcmf_c_mkiovar(iovar, param, paramlen, bufptr, buflen); 514 BUG_ON(!iolen); 515 516 return brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, bufptr, iolen); 517} 518 519static s32 520brcmf_dev_iovar_getbuf(struct net_device *ndev, s8 * iovar, void *param, 521 s32 paramlen, void *bufptr, s32 buflen) 522{ 523 s32 iolen; 524 525 iolen = brcmf_c_mkiovar(iovar, param, paramlen, bufptr, buflen); 526 BUG_ON(!iolen); 527 528 return brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, bufptr, buflen); 529} 530 531static s32 532brcmf_run_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan, 533 struct brcmf_ssid *ssid, u16 action) 534{ 535 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE + 536 offsetof(struct brcmf_iscan_params_le, params_le); 537 struct brcmf_iscan_params_le *params; 538 s32 err = 0; 539 540 if (ssid && ssid->SSID_len) 541 params_size += sizeof(struct brcmf_ssid); 542 params = kzalloc(params_size, GFP_KERNEL); 543 if (!params) 544 return -ENOMEM; 545 BUG_ON(params_size >= BRCMF_DCMD_SMLEN); 546 547 wl_iscan_prep(¶ms->params_le, ssid); 548 549 params->version = cpu_to_le32(BRCMF_ISCAN_REQ_VERSION); 550 params->action = cpu_to_le16(action); 551 params->scan_duration = cpu_to_le16(0); 552 553 err = brcmf_dev_iovar_setbuf(iscan->ndev, "iscan", params, params_size, 554 iscan->dcmd_buf, BRCMF_DCMD_SMLEN); 555 if (err) { 556 if (err == -EBUSY) 557 WL_INFO("system busy : iscan canceled\n"); 558 else 559 WL_ERR("error (%d)\n", err); 560 } 561 562 kfree(params); 563 return err; 564} 565 566static s32 brcmf_do_iscan(struct brcmf_cfg80211_priv *cfg_priv) 567{ 568 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv); 569 struct net_device *ndev = cfg_to_ndev(cfg_priv); 570 struct brcmf_ssid ssid; 571 __le32 passive_scan; 572 s32 err = 0; 573 574 /* Broadcast scan by default */ 575 memset(&ssid, 0, sizeof(ssid)); 576 577 iscan->state = WL_ISCAN_STATE_SCANING; 578 579 passive_scan = cfg_priv->active_scan ? 0 : cpu_to_le32(1); 580 err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCMF_C_SET_PASSIVE_SCAN, 581 &passive_scan, sizeof(passive_scan)); 582 if (err) { 583 WL_ERR("error (%d)\n", err); 584 return err; 585 } 586 brcmf_set_mpc(ndev, 0); 587 cfg_priv->iscan_kickstart = true; 588 err = brcmf_run_iscan(iscan, &ssid, BRCMF_SCAN_ACTION_START); 589 if (err) { 590 brcmf_set_mpc(ndev, 1); 591 cfg_priv->iscan_kickstart = false; 592 return err; 593 } 594 mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000); 595 iscan->timer_on = 1; 596 return err; 597} 598 599static s32 600__brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, 601 struct cfg80211_scan_request *request, 602 struct cfg80211_ssid *this_ssid) 603{ 604 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 605 struct cfg80211_ssid *ssids; 606 struct brcmf_cfg80211_scan_req *sr = cfg_priv->scan_req_int; 607 __le32 passive_scan; 608 bool iscan_req; 609 bool spec_scan; 610 s32 err = 0; 611 u32 SSID_len; 612 613 if (test_bit(WL_STATUS_SCANNING, &cfg_priv->status)) { 614 WL_ERR("Scanning already : status (%lu)\n", cfg_priv->status); 615 return -EAGAIN; 616 } 617 if (test_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status)) { 618 WL_ERR("Scanning being aborted : status (%lu)\n", 619 cfg_priv->status); 620 return -EAGAIN; 621 } 622 if (test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) { 623 WL_ERR("Connecting : status (%lu)\n", 624 cfg_priv->status); 625 return -EAGAIN; 626 } 627 628 iscan_req = false; 629 spec_scan = false; 630 if (request) { 631 /* scan bss */ 632 ssids = request->ssids; 633 if (cfg_priv->iscan_on && (!ssids || !ssids->ssid_len)) 634 iscan_req = true; 635 } else { 636 /* scan in ibss */ 637 /* we don't do iscan in ibss */ 638 ssids = this_ssid; 639 } 640 641 cfg_priv->scan_request = request; 642 set_bit(WL_STATUS_SCANNING, &cfg_priv->status); 643 if (iscan_req) { 644 err = brcmf_do_iscan(cfg_priv); 645 if (!err) 646 return err; 647 else 648 goto scan_out; 649 } else { 650 WL_SCAN("ssid \"%s\", ssid_len (%d)\n", 651 ssids->ssid, ssids->ssid_len); 652 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le)); 653 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len); 654 sr->ssid_le.SSID_len = cpu_to_le32(0); 655 if (SSID_len) { 656 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len); 657 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len); 658 spec_scan = true; 659 } else { 660 WL_SCAN("Broadcast scan\n"); 661 } 662 663 passive_scan = cfg_priv->active_scan ? 0 : cpu_to_le32(1); 664 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_PASSIVE_SCAN, 665 &passive_scan, sizeof(passive_scan)); 666 if (err) { 667 WL_ERR("WLC_SET_PASSIVE_SCAN error (%d)\n", err); 668 goto scan_out; 669 } 670 brcmf_set_mpc(ndev, 0); 671 err = brcmf_exec_dcmd(ndev, BRCMF_C_SCAN, &sr->ssid_le, 672 sizeof(sr->ssid_le)); 673 if (err) { 674 if (err == -EBUSY) 675 WL_INFO("system busy : scan for \"%s\" " 676 "canceled\n", sr->ssid_le.SSID); 677 else 678 WL_ERR("WLC_SCAN error (%d)\n", err); 679 680 brcmf_set_mpc(ndev, 1); 681 goto scan_out; 682 } 683 } 684 685 return 0; 686 687scan_out: 688 clear_bit(WL_STATUS_SCANNING, &cfg_priv->status); 689 cfg_priv->scan_request = NULL; 690 return err; 691} 692 693static s32 694brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, 695 struct cfg80211_scan_request *request) 696{ 697 s32 err = 0; 698 699 WL_TRACE("Enter\n"); 700 701 if (!check_sys_up(wiphy)) 702 return -EIO; 703 704 err = __brcmf_cfg80211_scan(wiphy, ndev, request, NULL); 705 if (err) 706 WL_ERR("scan error (%d)\n", err); 707 708 WL_TRACE("Exit\n"); 709 return err; 710} 711 712static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold) 713{ 714 s32 err = 0; 715 716 err = brcmf_dev_intvar_set(ndev, "rtsthresh", rts_threshold); 717 if (err) 718 WL_ERR("Error (%d)\n", err); 719 720 return err; 721} 722 723static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold) 724{ 725 s32 err = 0; 726 727 err = brcmf_dev_intvar_set(ndev, "fragthresh", frag_threshold); 728 if (err) 729 WL_ERR("Error (%d)\n", err); 730 731 return err; 732} 733 734static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l) 735{ 736 s32 err = 0; 737 u32 cmd = (l ? BRCM_SET_LRL : BRCM_SET_SRL); 738 739 err = brcmf_exec_dcmd_u32(ndev, cmd, &retry); 740 if (err) { 741 WL_ERR("cmd (%d) , error (%d)\n", cmd, err); 742 return err; 743 } 744 return err; 745} 746 747static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 748{ 749 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 750 struct net_device *ndev = cfg_to_ndev(cfg_priv); 751 s32 err = 0; 752 753 WL_TRACE("Enter\n"); 754 if (!check_sys_up(wiphy)) 755 return -EIO; 756 757 if (changed & WIPHY_PARAM_RTS_THRESHOLD && 758 (cfg_priv->conf->rts_threshold != wiphy->rts_threshold)) { 759 cfg_priv->conf->rts_threshold = wiphy->rts_threshold; 760 err = brcmf_set_rts(ndev, cfg_priv->conf->rts_threshold); 761 if (!err) 762 goto done; 763 } 764 if (changed & WIPHY_PARAM_FRAG_THRESHOLD && 765 (cfg_priv->conf->frag_threshold != wiphy->frag_threshold)) { 766 cfg_priv->conf->frag_threshold = wiphy->frag_threshold; 767 err = brcmf_set_frag(ndev, cfg_priv->conf->frag_threshold); 768 if (!err) 769 goto done; 770 } 771 if (changed & WIPHY_PARAM_RETRY_LONG 772 && (cfg_priv->conf->retry_long != wiphy->retry_long)) { 773 cfg_priv->conf->retry_long = wiphy->retry_long; 774 err = brcmf_set_retry(ndev, cfg_priv->conf->retry_long, true); 775 if (!err) 776 goto done; 777 } 778 if (changed & WIPHY_PARAM_RETRY_SHORT 779 && (cfg_priv->conf->retry_short != wiphy->retry_short)) { 780 cfg_priv->conf->retry_short = wiphy->retry_short; 781 err = brcmf_set_retry(ndev, cfg_priv->conf->retry_short, false); 782 if (!err) 783 goto done; 784 } 785 786done: 787 WL_TRACE("Exit\n"); 788 return err; 789} 790 791static void *brcmf_read_prof(struct brcmf_cfg80211_priv *cfg_priv, s32 item) 792{ 793 switch (item) { 794 case WL_PROF_SEC: 795 return &cfg_priv->profile->sec; 796 case WL_PROF_BSSID: 797 return &cfg_priv->profile->bssid; 798 case WL_PROF_SSID: 799 return &cfg_priv->profile->ssid; 800 } 801 WL_ERR("invalid item (%d)\n", item); 802 return NULL; 803} 804 805static s32 806brcmf_update_prof(struct brcmf_cfg80211_priv *cfg_priv, 807 const struct brcmf_event_msg *e, void *data, s32 item) 808{ 809 s32 err = 0; 810 struct brcmf_ssid *ssid; 811 812 switch (item) { 813 case WL_PROF_SSID: 814 ssid = (struct brcmf_ssid *) data; 815 memset(cfg_priv->profile->ssid.SSID, 0, 816 sizeof(cfg_priv->profile->ssid.SSID)); 817 memcpy(cfg_priv->profile->ssid.SSID, 818 ssid->SSID, ssid->SSID_len); 819 cfg_priv->profile->ssid.SSID_len = ssid->SSID_len; 820 break; 821 case WL_PROF_BSSID: 822 if (data) 823 memcpy(cfg_priv->profile->bssid, data, ETH_ALEN); 824 else 825 memset(cfg_priv->profile->bssid, 0, ETH_ALEN); 826 break; 827 case WL_PROF_SEC: 828 memcpy(&cfg_priv->profile->sec, data, 829 sizeof(cfg_priv->profile->sec)); 830 break; 831 case WL_PROF_BEACONINT: 832 cfg_priv->profile->beacon_interval = *(u16 *)data; 833 break; 834 case WL_PROF_DTIMPERIOD: 835 cfg_priv->profile->dtim_period = *(u8 *)data; 836 break; 837 default: 838 WL_ERR("unsupported item (%d)\n", item); 839 err = -EOPNOTSUPP; 840 break; 841 } 842 843 return err; 844} 845 846static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof) 847{ 848 memset(prof, 0, sizeof(*prof)); 849} 850 851static void brcmf_ch_to_chanspec(int ch, struct brcmf_join_params *join_params, 852 size_t *join_params_size) 853{ 854 u16 chanspec = 0; 855 856 if (ch != 0) { 857 if (ch <= CH_MAX_2G_CHANNEL) 858 chanspec |= WL_CHANSPEC_BAND_2G; 859 else 860 chanspec |= WL_CHANSPEC_BAND_5G; 861 862 chanspec |= WL_CHANSPEC_BW_20; 863 chanspec |= WL_CHANSPEC_CTL_SB_NONE; 864 865 *join_params_size += BRCMF_ASSOC_PARAMS_FIXED_SIZE + 866 sizeof(u16); 867 868 chanspec |= (ch & WL_CHANSPEC_CHAN_MASK); 869 join_params->params_le.chanspec_list[0] = cpu_to_le16(chanspec); 870 join_params->params_le.chanspec_num = cpu_to_le32(1); 871 872 WL_CONN("join_params->params.chanspec_list[0]= %#X," 873 "channel %d, chanspec %#X\n", 874 chanspec, ch, chanspec); 875 } 876} 877 878static void brcmf_link_down(struct brcmf_cfg80211_priv *cfg_priv) 879{ 880 struct net_device *ndev = NULL; 881 s32 err = 0; 882 883 WL_TRACE("Enter\n"); 884 885 if (cfg_priv->link_up) { 886 ndev = cfg_to_ndev(cfg_priv); 887 WL_INFO("Call WLC_DISASSOC to stop excess roaming\n "); 888 err = brcmf_exec_dcmd(ndev, BRCMF_C_DISASSOC, NULL, 0); 889 if (err) 890 WL_ERR("WLC_DISASSOC failed (%d)\n", err); 891 cfg_priv->link_up = false; 892 } 893 WL_TRACE("Exit\n"); 894} 895 896static s32 897brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev, 898 struct cfg80211_ibss_params *params) 899{ 900 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 901 struct brcmf_join_params join_params; 902 size_t join_params_size = 0; 903 s32 err = 0; 904 s32 wsec = 0; 905 s32 bcnprd; 906 struct brcmf_ssid ssid; 907 908 WL_TRACE("Enter\n"); 909 if (!check_sys_up(wiphy)) 910 return -EIO; 911 912 if (params->ssid) 913 WL_CONN("SSID: %s\n", params->ssid); 914 else { 915 WL_CONN("SSID: NULL, Not supported\n"); 916 return -EOPNOTSUPP; 917 } 918 919 set_bit(WL_STATUS_CONNECTING, &cfg_priv->status); 920 921 if (params->bssid) 922 WL_CONN("BSSID: %02X %02X %02X %02X %02X %02X\n", 923 params->bssid[0], params->bssid[1], params->bssid[2], 924 params->bssid[3], params->bssid[4], params->bssid[5]); 925 else 926 WL_CONN("No BSSID specified\n"); 927 928 if (params->channel) 929 WL_CONN("channel: %d\n", params->channel->center_freq); 930 else 931 WL_CONN("no channel specified\n"); 932 933 if (params->channel_fixed) 934 WL_CONN("fixed channel required\n"); 935 else 936 WL_CONN("no fixed channel required\n"); 937 938 if (params->ie && params->ie_len) 939 WL_CONN("ie len: %d\n", params->ie_len); 940 else 941 WL_CONN("no ie specified\n"); 942 943 if (params->beacon_interval) 944 WL_CONN("beacon interval: %d\n", params->beacon_interval); 945 else 946 WL_CONN("no beacon interval specified\n"); 947 948 if (params->basic_rates) 949 WL_CONN("basic rates: %08X\n", params->basic_rates); 950 else 951 WL_CONN("no basic rates specified\n"); 952 953 if (params->privacy) 954 WL_CONN("privacy required\n"); 955 else 956 WL_CONN("no privacy required\n"); 957 958 /* Configure Privacy for starter */ 959 if (params->privacy) 960 wsec |= WEP_ENABLED; 961 962 err = brcmf_dev_intvar_set(ndev, "wsec", wsec); 963 if (err) { 964 WL_ERR("wsec failed (%d)\n", err); 965 goto done; 966 } 967 968 /* Configure Beacon Interval for starter */ 969 if (params->beacon_interval) 970 bcnprd = params->beacon_interval; 971 else 972 bcnprd = 100; 973 974 err = brcmf_exec_dcmd_u32(ndev, BRCM_SET_BCNPRD, &bcnprd); 975 if (err) { 976 WL_ERR("WLC_SET_BCNPRD failed (%d)\n", err); 977 goto done; 978 } 979 980 /* Configure required join parameter */ 981 memset(&join_params, 0, sizeof(struct brcmf_join_params)); 982 983 /* SSID */ 984 ssid.SSID_len = min_t(u32, params->ssid_len, 32); 985 memcpy(ssid.SSID, params->ssid, ssid.SSID_len); 986 memcpy(join_params.ssid_le.SSID, params->ssid, ssid.SSID_len); 987 join_params.ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len); 988 join_params_size = sizeof(join_params.ssid_le); 989 brcmf_update_prof(cfg_priv, NULL, &ssid, WL_PROF_SSID); 990 991 /* BSSID */ 992 if (params->bssid) { 993 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN); 994 join_params_size = sizeof(join_params.ssid_le) + 995 BRCMF_ASSOC_PARAMS_FIXED_SIZE; 996 } else { 997 memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN); 998 } 999 1000 brcmf_update_prof(cfg_priv, NULL, 1001 &join_params.params_le.bssid, WL_PROF_BSSID); 1002 1003 /* Channel */ 1004 if (params->channel) { 1005 u32 target_channel; 1006 1007 cfg_priv->channel = 1008 ieee80211_frequency_to_channel( 1009 params->channel->center_freq); 1010 if (params->channel_fixed) { 1011 /* adding chanspec */ 1012 brcmf_ch_to_chanspec(cfg_priv->channel, 1013 &join_params, &join_params_size); 1014 } 1015 1016 /* set channel for starter */ 1017 target_channel = cfg_priv->channel; 1018 err = brcmf_exec_dcmd_u32(ndev, BRCM_SET_CHANNEL, 1019 &target_channel); 1020 if (err) { 1021 WL_ERR("WLC_SET_CHANNEL failed (%d)\n", err); 1022 goto done; 1023 } 1024 } else 1025 cfg_priv->channel = 0; 1026 1027 cfg_priv->ibss_starter = false; 1028 1029 1030 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SSID, 1031 &join_params, join_params_size); 1032 if (err) { 1033 WL_ERR("WLC_SET_SSID failed (%d)\n", err); 1034 goto done; 1035 } 1036 1037done: 1038 if (err) 1039 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); 1040 WL_TRACE("Exit\n"); 1041 return err; 1042} 1043 1044static s32 1045brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev) 1046{ 1047 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 1048 s32 err = 0; 1049 1050 WL_TRACE("Enter\n"); 1051 if (!check_sys_up(wiphy)) 1052 return -EIO; 1053 1054 brcmf_link_down(cfg_priv); 1055 1056 WL_TRACE("Exit\n"); 1057 1058 return err; 1059} 1060 1061static s32 brcmf_set_wpa_version(struct net_device *ndev, 1062 struct cfg80211_connect_params *sme) 1063{ 1064 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 1065 struct brcmf_cfg80211_security *sec; 1066 s32 val = 0; 1067 s32 err = 0; 1068 1069 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) 1070 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED; 1071 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) 1072 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED; 1073 else 1074 val = WPA_AUTH_DISABLED; 1075 WL_CONN("setting wpa_auth to 0x%0x\n", val); 1076 err = brcmf_dev_intvar_set(ndev, "wpa_auth", val); 1077 if (err) { 1078 WL_ERR("set wpa_auth failed (%d)\n", err); 1079 return err; 1080 } 1081 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); 1082 sec->wpa_versions = sme->crypto.wpa_versions; 1083 return err; 1084} 1085 1086static s32 brcmf_set_auth_type(struct net_device *ndev, 1087 struct cfg80211_connect_params *sme) 1088{ 1089 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 1090 struct brcmf_cfg80211_security *sec; 1091 s32 val = 0; 1092 s32 err = 0; 1093 1094 switch (sme->auth_type) { 1095 case NL80211_AUTHTYPE_OPEN_SYSTEM: 1096 val = 0; 1097 WL_CONN("open system\n"); 1098 break; 1099 case NL80211_AUTHTYPE_SHARED_KEY: 1100 val = 1; 1101 WL_CONN("shared key\n"); 1102 break; 1103 case NL80211_AUTHTYPE_AUTOMATIC: 1104 val = 2; 1105 WL_CONN("automatic\n"); 1106 break; 1107 case NL80211_AUTHTYPE_NETWORK_EAP: 1108 WL_CONN("network eap\n"); 1109 default: 1110 val = 2; 1111 WL_ERR("invalid auth type (%d)\n", sme->auth_type); 1112 break; 1113 } 1114 1115 err = brcmf_dev_intvar_set(ndev, "auth", val); 1116 if (err) { 1117 WL_ERR("set auth failed (%d)\n", err); 1118 return err; 1119 } 1120 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); 1121 sec->auth_type = sme->auth_type; 1122 return err; 1123} 1124 1125static s32 1126brcmf_set_set_cipher(struct net_device *ndev, 1127 struct cfg80211_connect_params *sme) 1128{ 1129 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 1130 struct brcmf_cfg80211_security *sec; 1131 s32 pval = 0; 1132 s32 gval = 0; 1133 s32 err = 0; 1134 1135 if (sme->crypto.n_ciphers_pairwise) { 1136 switch (sme->crypto.ciphers_pairwise[0]) { 1137 case WLAN_CIPHER_SUITE_WEP40: 1138 case WLAN_CIPHER_SUITE_WEP104: 1139 pval = WEP_ENABLED; 1140 break; 1141 case WLAN_CIPHER_SUITE_TKIP: 1142 pval = TKIP_ENABLED; 1143 break; 1144 case WLAN_CIPHER_SUITE_CCMP: 1145 pval = AES_ENABLED; 1146 break; 1147 case WLAN_CIPHER_SUITE_AES_CMAC: 1148 pval = AES_ENABLED; 1149 break; 1150 default: 1151 WL_ERR("invalid cipher pairwise (%d)\n", 1152 sme->crypto.ciphers_pairwise[0]); 1153 return -EINVAL; 1154 } 1155 } 1156 if (sme->crypto.cipher_group) { 1157 switch (sme->crypto.cipher_group) { 1158 case WLAN_CIPHER_SUITE_WEP40: 1159 case WLAN_CIPHER_SUITE_WEP104: 1160 gval = WEP_ENABLED; 1161 break; 1162 case WLAN_CIPHER_SUITE_TKIP: 1163 gval = TKIP_ENABLED; 1164 break; 1165 case WLAN_CIPHER_SUITE_CCMP: 1166 gval = AES_ENABLED; 1167 break; 1168 case WLAN_CIPHER_SUITE_AES_CMAC: 1169 gval = AES_ENABLED; 1170 break; 1171 default: 1172 WL_ERR("invalid cipher group (%d)\n", 1173 sme->crypto.cipher_group); 1174 return -EINVAL; 1175 } 1176 } 1177 1178 WL_CONN("pval (%d) gval (%d)\n", pval, gval); 1179 err = brcmf_dev_intvar_set(ndev, "wsec", pval | gval); 1180 if (err) { 1181 WL_ERR("error (%d)\n", err); 1182 return err; 1183 } 1184 1185 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); 1186 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0]; 1187 sec->cipher_group = sme->crypto.cipher_group; 1188 1189 return err; 1190} 1191 1192static s32 1193brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme) 1194{ 1195 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 1196 struct brcmf_cfg80211_security *sec; 1197 s32 val = 0; 1198 s32 err = 0; 1199 1200 if (sme->crypto.n_akm_suites) { 1201 err = brcmf_dev_intvar_get(ndev, "wpa_auth", &val); 1202 if (err) { 1203 WL_ERR("could not get wpa_auth (%d)\n", err); 1204 return err; 1205 } 1206 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) { 1207 switch (sme->crypto.akm_suites[0]) { 1208 case WLAN_AKM_SUITE_8021X: 1209 val = WPA_AUTH_UNSPECIFIED; 1210 break; 1211 case WLAN_AKM_SUITE_PSK: 1212 val = WPA_AUTH_PSK; 1213 break; 1214 default: 1215 WL_ERR("invalid cipher group (%d)\n", 1216 sme->crypto.cipher_group); 1217 return -EINVAL; 1218 } 1219 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) { 1220 switch (sme->crypto.akm_suites[0]) { 1221 case WLAN_AKM_SUITE_8021X: 1222 val = WPA2_AUTH_UNSPECIFIED; 1223 break; 1224 case WLAN_AKM_SUITE_PSK: 1225 val = WPA2_AUTH_PSK; 1226 break; 1227 default: 1228 WL_ERR("invalid cipher group (%d)\n", 1229 sme->crypto.cipher_group); 1230 return -EINVAL; 1231 } 1232 } 1233 1234 WL_CONN("setting wpa_auth to %d\n", val); 1235 err = brcmf_dev_intvar_set(ndev, "wpa_auth", val); 1236 if (err) { 1237 WL_ERR("could not set wpa_auth (%d)\n", err); 1238 return err; 1239 } 1240 } 1241 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); 1242 sec->wpa_auth = sme->crypto.akm_suites[0]; 1243 1244 return err; 1245} 1246 1247static s32 1248brcmf_set_wep_sharedkey(struct net_device *ndev, 1249 struct cfg80211_connect_params *sme) 1250{ 1251 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 1252 struct brcmf_cfg80211_security *sec; 1253 struct brcmf_wsec_key key; 1254 s32 val; 1255 s32 err = 0; 1256 1257 WL_CONN("key len (%d)\n", sme->key_len); 1258 1259 if (sme->key_len == 0) 1260 return 0; 1261 1262 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); 1263 WL_CONN("wpa_versions 0x%x cipher_pairwise 0x%x\n", 1264 sec->wpa_versions, sec->cipher_pairwise); 1265 1266 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2)) 1267 return 0; 1268 1269 if (sec->cipher_pairwise & 1270 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)) { 1271 memset(&key, 0, sizeof(key)); 1272 key.len = (u32) sme->key_len; 1273 key.index = (u32) sme->key_idx; 1274 if (key.len > sizeof(key.data)) { 1275 WL_ERR("Too long key length (%u)\n", key.len); 1276 return -EINVAL; 1277 } 1278 memcpy(key.data, sme->key, key.len); 1279 key.flags = BRCMF_PRIMARY_KEY; 1280 switch (sec->cipher_pairwise) { 1281 case WLAN_CIPHER_SUITE_WEP40: 1282 key.algo = CRYPTO_ALGO_WEP1; 1283 break; 1284 case WLAN_CIPHER_SUITE_WEP104: 1285 key.algo = CRYPTO_ALGO_WEP128; 1286 break; 1287 default: 1288 WL_ERR("Invalid algorithm (%d)\n", 1289 sme->crypto.ciphers_pairwise[0]); 1290 return -EINVAL; 1291 } 1292 /* Set the new key/index */ 1293 WL_CONN("key length (%d) key index (%d) algo (%d)\n", 1294 key.len, key.index, key.algo); 1295 WL_CONN("key \"%s\"\n", key.data); 1296 err = send_key_to_dongle(ndev, &key); 1297 if (err) 1298 return err; 1299 1300 if (sec->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) { 1301 WL_CONN("set auth_type to shared key\n"); 1302 val = 1; /* shared key */ 1303 err = brcmf_dev_intvar_set(ndev, "auth", val); 1304 if (err) { 1305 WL_ERR("set auth failed (%d)\n", err); 1306 return err; 1307 } 1308 } 1309 } 1310 return err; 1311} 1312 1313static s32 1314brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev, 1315 struct cfg80211_connect_params *sme) 1316{ 1317 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 1318 struct ieee80211_channel *chan = sme->channel; 1319 struct brcmf_join_params join_params; 1320 size_t join_params_size; 1321 struct brcmf_ssid ssid; 1322 1323 s32 err = 0; 1324 1325 WL_TRACE("Enter\n"); 1326 if (!check_sys_up(wiphy)) 1327 return -EIO; 1328 1329 if (!sme->ssid) { 1330 WL_ERR("Invalid ssid\n"); 1331 return -EOPNOTSUPP; 1332 } 1333 1334 set_bit(WL_STATUS_CONNECTING, &cfg_priv->status); 1335 1336 if (chan) { 1337 cfg_priv->channel = 1338 ieee80211_frequency_to_channel(chan->center_freq); 1339 WL_CONN("channel (%d), center_req (%d)\n", 1340 cfg_priv->channel, chan->center_freq); 1341 } else 1342 cfg_priv->channel = 0; 1343 1344 WL_INFO("ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len); 1345 1346 err = brcmf_set_wpa_version(ndev, sme); 1347 if (err) { 1348 WL_ERR("wl_set_wpa_version failed (%d)\n", err); 1349 goto done; 1350 } 1351 1352 err = brcmf_set_auth_type(ndev, sme); 1353 if (err) { 1354 WL_ERR("wl_set_auth_type failed (%d)\n", err); 1355 goto done; 1356 } 1357 1358 err = brcmf_set_set_cipher(ndev, sme); 1359 if (err) { 1360 WL_ERR("wl_set_set_cipher failed (%d)\n", err); 1361 goto done; 1362 } 1363 1364 err = brcmf_set_key_mgmt(ndev, sme); 1365 if (err) { 1366 WL_ERR("wl_set_key_mgmt failed (%d)\n", err); 1367 goto done; 1368 } 1369 1370 err = brcmf_set_wep_sharedkey(ndev, sme); 1371 if (err) { 1372 WL_ERR("brcmf_set_wep_sharedkey failed (%d)\n", err); 1373 goto done; 1374 } 1375 1376 memset(&join_params, 0, sizeof(join_params)); 1377 join_params_size = sizeof(join_params.ssid_le); 1378 1379 ssid.SSID_len = min_t(u32, sizeof(ssid.SSID), (u32)sme->ssid_len); 1380 memcpy(&join_params.ssid_le.SSID, sme->ssid, ssid.SSID_len); 1381 memcpy(&ssid.SSID, sme->ssid, ssid.SSID_len); 1382 join_params.ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len); 1383 brcmf_update_prof(cfg_priv, NULL, &ssid, WL_PROF_SSID); 1384 1385 memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN); 1386 1387 if (ssid.SSID_len < IEEE80211_MAX_SSID_LEN) 1388 WL_CONN("ssid \"%s\", len (%d)\n", 1389 ssid.SSID, ssid.SSID_len); 1390 1391 brcmf_ch_to_chanspec(cfg_priv->channel, 1392 &join_params, &join_params_size); 1393 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SSID, 1394 &join_params, join_params_size); 1395 if (err) 1396 WL_ERR("WLC_SET_SSID failed (%d)\n", err); 1397 1398done: 1399 if (err) 1400 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); 1401 WL_TRACE("Exit\n"); 1402 return err; 1403} 1404 1405static s32 1406brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev, 1407 u16 reason_code) 1408{ 1409 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 1410 struct brcmf_scb_val_le scbval; 1411 s32 err = 0; 1412 1413 WL_TRACE("Enter. Reason code = %d\n", reason_code); 1414 if (!check_sys_up(wiphy)) 1415 return -EIO; 1416 1417 clear_bit(WL_STATUS_CONNECTED, &cfg_priv->status); 1418 1419 memcpy(&scbval.ea, brcmf_read_prof(cfg_priv, WL_PROF_BSSID), ETH_ALEN); 1420 scbval.val = cpu_to_le32(reason_code); 1421 err = brcmf_exec_dcmd(ndev, BRCMF_C_DISASSOC, &scbval, 1422 sizeof(struct brcmf_scb_val_le)); 1423 if (err) 1424 WL_ERR("error (%d)\n", err); 1425 1426 cfg_priv->link_up = false; 1427 1428 WL_TRACE("Exit\n"); 1429 return err; 1430} 1431 1432static s32 1433brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, 1434 enum nl80211_tx_power_setting type, s32 mbm) 1435{ 1436 1437 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 1438 struct net_device *ndev = cfg_to_ndev(cfg_priv); 1439 u16 txpwrmw; 1440 s32 err = 0; 1441 s32 disable = 0; 1442 s32 dbm = MBM_TO_DBM(mbm); 1443 1444 WL_TRACE("Enter\n"); 1445 if (!check_sys_up(wiphy)) 1446 return -EIO; 1447 1448 switch (type) { 1449 case NL80211_TX_POWER_AUTOMATIC: 1450 break; 1451 case NL80211_TX_POWER_LIMITED: 1452 case NL80211_TX_POWER_FIXED: 1453 if (dbm < 0) { 1454 WL_ERR("TX_POWER_FIXED - dbm is negative\n"); 1455 err = -EINVAL; 1456 goto done; 1457 } 1458 break; 1459 } 1460 /* Make sure radio is off or on as far as software is concerned */ 1461 disable = WL_RADIO_SW_DISABLE << 16; 1462 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_RADIO, &disable); 1463 if (err) 1464 WL_ERR("WLC_SET_RADIO error (%d)\n", err); 1465 1466 if (dbm > 0xffff) 1467 txpwrmw = 0xffff; 1468 else 1469 txpwrmw = (u16) dbm; 1470 err = brcmf_dev_intvar_set(ndev, "qtxpower", 1471 (s32) (brcmf_mw_to_qdbm(txpwrmw))); 1472 if (err) 1473 WL_ERR("qtxpower error (%d)\n", err); 1474 cfg_priv->conf->tx_power = dbm; 1475 1476done: 1477 WL_TRACE("Exit\n"); 1478 return err; 1479} 1480 1481static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, s32 *dbm) 1482{ 1483 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 1484 struct net_device *ndev = cfg_to_ndev(cfg_priv); 1485 s32 txpwrdbm; 1486 u8 result; 1487 s32 err = 0; 1488 1489 WL_TRACE("Enter\n"); 1490 if (!check_sys_up(wiphy)) 1491 return -EIO; 1492 1493 err = brcmf_dev_intvar_get(ndev, "qtxpower", &txpwrdbm); 1494 if (err) { 1495 WL_ERR("error (%d)\n", err); 1496 goto done; 1497 } 1498 1499 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE); 1500 *dbm = (s32) brcmf_qdbm_to_mw(result); 1501 1502done: 1503 WL_TRACE("Exit\n"); 1504 return err; 1505} 1506 1507static s32 1508brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev, 1509 u8 key_idx, bool unicast, bool multicast) 1510{ 1511 u32 index; 1512 u32 wsec; 1513 s32 err = 0; 1514 1515 WL_TRACE("Enter\n"); 1516 WL_CONN("key index (%d)\n", key_idx); 1517 if (!check_sys_up(wiphy)) 1518 return -EIO; 1519 1520 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_WSEC, &wsec); 1521 if (err) { 1522 WL_ERR("WLC_GET_WSEC error (%d)\n", err); 1523 goto done; 1524 } 1525 1526 if (wsec & WEP_ENABLED) { 1527 /* Just select a new current key */ 1528 index = key_idx; 1529 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_KEY_PRIMARY, 1530 &index); 1531 if (err) 1532 WL_ERR("error (%d)\n", err); 1533 } 1534done: 1535 WL_TRACE("Exit\n"); 1536 return err; 1537} 1538 1539static s32 1540brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev, 1541 u8 key_idx, const u8 *mac_addr, struct key_params *params) 1542{ 1543 struct brcmf_wsec_key key; 1544 struct brcmf_wsec_key_le key_le; 1545 s32 err = 0; 1546 1547 memset(&key, 0, sizeof(key)); 1548 key.index = (u32) key_idx; 1549 /* Instead of bcast for ea address for default wep keys, 1550 driver needs it to be Null */ 1551 if (!is_multicast_ether_addr(mac_addr)) 1552 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN); 1553 key.len = (u32) params->key_len; 1554 /* check for key index change */ 1555 if (key.len == 0) { 1556 /* key delete */ 1557 err = send_key_to_dongle(ndev, &key); 1558 if (err) 1559 return err; 1560 } else { 1561 if (key.len > sizeof(key.data)) { 1562 WL_ERR("Invalid key length (%d)\n", key.len); 1563 return -EINVAL; 1564 } 1565 1566 WL_CONN("Setting the key index %d\n", key.index); 1567 memcpy(key.data, params->key, key.len); 1568 1569 if (params->cipher == WLAN_CIPHER_SUITE_TKIP) { 1570 u8 keybuf[8]; 1571 memcpy(keybuf, &key.data[24], sizeof(keybuf)); 1572 memcpy(&key.data[24], &key.data[16], sizeof(keybuf)); 1573 memcpy(&key.data[16], keybuf, sizeof(keybuf)); 1574 } 1575 1576 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */ 1577 if (params->seq && params->seq_len == 6) { 1578 /* rx iv */ 1579 u8 *ivptr; 1580 ivptr = (u8 *) params->seq; 1581 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) | 1582 (ivptr[3] << 8) | ivptr[2]; 1583 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0]; 1584 key.iv_initialized = true; 1585 } 1586 1587 switch (params->cipher) { 1588 case WLAN_CIPHER_SUITE_WEP40: 1589 key.algo = CRYPTO_ALGO_WEP1; 1590 WL_CONN("WLAN_CIPHER_SUITE_WEP40\n"); 1591 break; 1592 case WLAN_CIPHER_SUITE_WEP104: 1593 key.algo = CRYPTO_ALGO_WEP128; 1594 WL_CONN("WLAN_CIPHER_SUITE_WEP104\n"); 1595 break; 1596 case WLAN_CIPHER_SUITE_TKIP: 1597 key.algo = CRYPTO_ALGO_TKIP; 1598 WL_CONN("WLAN_CIPHER_SUITE_TKIP\n"); 1599 break; 1600 case WLAN_CIPHER_SUITE_AES_CMAC: 1601 key.algo = CRYPTO_ALGO_AES_CCM; 1602 WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n"); 1603 break; 1604 case WLAN_CIPHER_SUITE_CCMP: 1605 key.algo = CRYPTO_ALGO_AES_CCM; 1606 WL_CONN("WLAN_CIPHER_SUITE_CCMP\n"); 1607 break; 1608 default: 1609 WL_ERR("Invalid cipher (0x%x)\n", params->cipher); 1610 return -EINVAL; 1611 } 1612 convert_key_from_CPU(&key, &key_le); 1613 1614 brcmf_netdev_wait_pend8021x(ndev); 1615 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_KEY, &key_le, 1616 sizeof(key_le)); 1617 if (err) { 1618 WL_ERR("WLC_SET_KEY error (%d)\n", err); 1619 return err; 1620 } 1621 } 1622 return err; 1623} 1624 1625static s32 1626brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 1627 u8 key_idx, bool pairwise, const u8 *mac_addr, 1628 struct key_params *params) 1629{ 1630 struct brcmf_wsec_key key; 1631 s32 val; 1632 s32 wsec; 1633 s32 err = 0; 1634 u8 keybuf[8]; 1635 1636 WL_TRACE("Enter\n"); 1637 WL_CONN("key index (%d)\n", key_idx); 1638 if (!check_sys_up(wiphy)) 1639 return -EIO; 1640 1641 if (mac_addr) { 1642 WL_TRACE("Exit"); 1643 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params); 1644 } 1645 memset(&key, 0, sizeof(key)); 1646 1647 key.len = (u32) params->key_len; 1648 key.index = (u32) key_idx; 1649 1650 if (key.len > sizeof(key.data)) { 1651 WL_ERR("Too long key length (%u)\n", key.len); 1652 err = -EINVAL; 1653 goto done; 1654 } 1655 memcpy(key.data, params->key, key.len); 1656 1657 key.flags = BRCMF_PRIMARY_KEY; 1658 switch (params->cipher) { 1659 case WLAN_CIPHER_SUITE_WEP40: 1660 key.algo = CRYPTO_ALGO_WEP1; 1661 WL_CONN("WLAN_CIPHER_SUITE_WEP40\n"); 1662 break; 1663 case WLAN_CIPHER_SUITE_WEP104: 1664 key.algo = CRYPTO_ALGO_WEP128; 1665 WL_CONN("WLAN_CIPHER_SUITE_WEP104\n"); 1666 break; 1667 case WLAN_CIPHER_SUITE_TKIP: 1668 memcpy(keybuf, &key.data[24], sizeof(keybuf)); 1669 memcpy(&key.data[24], &key.data[16], sizeof(keybuf)); 1670 memcpy(&key.data[16], keybuf, sizeof(keybuf)); 1671 key.algo = CRYPTO_ALGO_TKIP; 1672 WL_CONN("WLAN_CIPHER_SUITE_TKIP\n"); 1673 break; 1674 case WLAN_CIPHER_SUITE_AES_CMAC: 1675 key.algo = CRYPTO_ALGO_AES_CCM; 1676 WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n"); 1677 break; 1678 case WLAN_CIPHER_SUITE_CCMP: 1679 key.algo = CRYPTO_ALGO_AES_CCM; 1680 WL_CONN("WLAN_CIPHER_SUITE_CCMP\n"); 1681 break; 1682 default: 1683 WL_ERR("Invalid cipher (0x%x)\n", params->cipher); 1684 err = -EINVAL; 1685 goto done; 1686 } 1687 1688 err = send_key_to_dongle(ndev, &key); /* Set the new key/index */ 1689 if (err) 1690 goto done; 1691 1692 val = WEP_ENABLED; 1693 err = brcmf_dev_intvar_get(ndev, "wsec", &wsec); 1694 if (err) { 1695 WL_ERR("get wsec error (%d)\n", err); 1696 goto done; 1697 } 1698 wsec &= ~(WEP_ENABLED); 1699 wsec |= val; 1700 err = brcmf_dev_intvar_set(ndev, "wsec", wsec); 1701 if (err) { 1702 WL_ERR("set wsec error (%d)\n", err); 1703 goto done; 1704 } 1705 1706 val = 1; /* assume shared key. otherwise 0 */ 1707 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AUTH, &val); 1708 if (err) 1709 WL_ERR("WLC_SET_AUTH error (%d)\n", err); 1710done: 1711 WL_TRACE("Exit\n"); 1712 return err; 1713} 1714 1715static s32 1716brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1717 u8 key_idx, bool pairwise, const u8 *mac_addr) 1718{ 1719 struct brcmf_wsec_key key; 1720 s32 err = 0; 1721 s32 val; 1722 s32 wsec; 1723 1724 WL_TRACE("Enter\n"); 1725 if (!check_sys_up(wiphy)) 1726 return -EIO; 1727 1728 memset(&key, 0, sizeof(key)); 1729 1730 key.index = (u32) key_idx; 1731 key.flags = BRCMF_PRIMARY_KEY; 1732 key.algo = CRYPTO_ALGO_OFF; 1733 1734 WL_CONN("key index (%d)\n", key_idx); 1735 1736 /* Set the new key/index */ 1737 err = send_key_to_dongle(ndev, &key); 1738 if (err) { 1739 if (err == -EINVAL) { 1740 if (key.index >= DOT11_MAX_DEFAULT_KEYS) 1741 /* we ignore this key index in this case */ 1742 WL_ERR("invalid key index (%d)\n", key_idx); 1743 } 1744 /* Ignore this error, may happen during DISASSOC */ 1745 err = -EAGAIN; 1746 goto done; 1747 } 1748 1749 val = 0; 1750 err = brcmf_dev_intvar_get(ndev, "wsec", &wsec); 1751 if (err) { 1752 WL_ERR("get wsec error (%d)\n", err); 1753 /* Ignore this error, may happen during DISASSOC */ 1754 err = -EAGAIN; 1755 goto done; 1756 } 1757 wsec &= ~(WEP_ENABLED); 1758 wsec |= val; 1759 err = brcmf_dev_intvar_set(ndev, "wsec", wsec); 1760 if (err) { 1761 WL_ERR("set wsec error (%d)\n", err); 1762 /* Ignore this error, may happen during DISASSOC */ 1763 err = -EAGAIN; 1764 goto done; 1765 } 1766 1767 val = 0; /* assume open key. otherwise 1 */ 1768 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AUTH, &val); 1769 if (err) { 1770 WL_ERR("WLC_SET_AUTH error (%d)\n", err); 1771 /* Ignore this error, may happen during DISASSOC */ 1772 err = -EAGAIN; 1773 } 1774done: 1775 WL_TRACE("Exit\n"); 1776 return err; 1777} 1778 1779static s32 1780brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1781 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie, 1782 void (*callback) (void *cookie, struct key_params * params)) 1783{ 1784 struct key_params params; 1785 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 1786 struct brcmf_cfg80211_security *sec; 1787 s32 wsec; 1788 s32 err = 0; 1789 1790 WL_TRACE("Enter\n"); 1791 WL_CONN("key index (%d)\n", key_idx); 1792 if (!check_sys_up(wiphy)) 1793 return -EIO; 1794 1795 memset(¶ms, 0, sizeof(params)); 1796 1797 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_WSEC, &wsec); 1798 if (err) { 1799 WL_ERR("WLC_GET_WSEC error (%d)\n", err); 1800 /* Ignore this error, may happen during DISASSOC */ 1801 err = -EAGAIN; 1802 goto done; 1803 } 1804 switch (wsec) { 1805 case WEP_ENABLED: 1806 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); 1807 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) { 1808 params.cipher = WLAN_CIPHER_SUITE_WEP40; 1809 WL_CONN("WLAN_CIPHER_SUITE_WEP40\n"); 1810 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) { 1811 params.cipher = WLAN_CIPHER_SUITE_WEP104; 1812 WL_CONN("WLAN_CIPHER_SUITE_WEP104\n"); 1813 } 1814 break; 1815 case TKIP_ENABLED: 1816 params.cipher = WLAN_CIPHER_SUITE_TKIP; 1817 WL_CONN("WLAN_CIPHER_SUITE_TKIP\n"); 1818 break; 1819 case AES_ENABLED: 1820 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC; 1821 WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n"); 1822 break; 1823 default: 1824 WL_ERR("Invalid algo (0x%x)\n", wsec); 1825 err = -EINVAL; 1826 goto done; 1827 } 1828 callback(cookie, ¶ms); 1829 1830done: 1831 WL_TRACE("Exit\n"); 1832 return err; 1833} 1834 1835static s32 1836brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy, 1837 struct net_device *ndev, u8 key_idx) 1838{ 1839 WL_INFO("Not supported\n"); 1840 1841 return -EOPNOTSUPP; 1842} 1843 1844static s32 1845brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev, 1846 u8 *mac, struct station_info *sinfo) 1847{ 1848 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 1849 struct brcmf_scb_val_le scb_val; 1850 int rssi; 1851 s32 rate; 1852 s32 err = 0; 1853 u8 *bssid = brcmf_read_prof(cfg_priv, WL_PROF_BSSID); 1854 1855 WL_TRACE("Enter\n"); 1856 if (!check_sys_up(wiphy)) 1857 return -EIO; 1858 1859 if (memcmp(mac, bssid, ETH_ALEN)) { 1860 WL_ERR("Wrong Mac address cfg_mac-%X:%X:%X:%X:%X:%X" 1861 "wl_bssid-%X:%X:%X:%X:%X:%X\n", 1862 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], 1863 bssid[0], bssid[1], bssid[2], bssid[3], 1864 bssid[4], bssid[5]); 1865 err = -ENOENT; 1866 goto done; 1867 } 1868 1869 /* Report the current tx rate */ 1870 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_RATE, &rate); 1871 if (err) { 1872 WL_ERR("Could not get rate (%d)\n", err); 1873 } else { 1874 sinfo->filled |= STATION_INFO_TX_BITRATE; 1875 sinfo->txrate.legacy = rate * 5; 1876 WL_CONN("Rate %d Mbps\n", rate / 2); 1877 } 1878 1879 if (test_bit(WL_STATUS_CONNECTED, &cfg_priv->status)) { 1880 scb_val.val = cpu_to_le32(0); 1881 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_RSSI, &scb_val, 1882 sizeof(struct brcmf_scb_val_le)); 1883 if (err) 1884 WL_ERR("Could not get rssi (%d)\n", err); 1885 1886 rssi = le32_to_cpu(scb_val.val); 1887 sinfo->filled |= STATION_INFO_SIGNAL; 1888 sinfo->signal = rssi; 1889 WL_CONN("RSSI %d dBm\n", rssi); 1890 } 1891 1892done: 1893 WL_TRACE("Exit\n"); 1894 return err; 1895} 1896 1897static s32 1898brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev, 1899 bool enabled, s32 timeout) 1900{ 1901 s32 pm; 1902 s32 err = 0; 1903 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 1904 1905 WL_TRACE("Enter\n"); 1906 1907 /* 1908 * Powersave enable/disable request is coming from the 1909 * cfg80211 even before the interface is up. In that 1910 * scenario, driver will be storing the power save 1911 * preference in cfg_priv struct to apply this to 1912 * FW later while initializing the dongle 1913 */ 1914 cfg_priv->pwr_save = enabled; 1915 if (!test_bit(WL_STATUS_READY, &cfg_priv->status)) { 1916 1917 WL_INFO("Device is not ready," 1918 "storing the value in cfg_priv struct\n"); 1919 goto done; 1920 } 1921 1922 pm = enabled ? PM_FAST : PM_OFF; 1923 WL_INFO("power save %s\n", (pm ? "enabled" : "disabled")); 1924 1925 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_PM, &pm); 1926 if (err) { 1927 if (err == -ENODEV) 1928 WL_ERR("net_device is not ready yet\n"); 1929 else 1930 WL_ERR("error (%d)\n", err); 1931 } 1932done: 1933 WL_TRACE("Exit\n"); 1934 return err; 1935} 1936 1937static s32 1938brcmf_cfg80211_set_bitrate_mask(struct wiphy *wiphy, struct net_device *ndev, 1939 const u8 *addr, 1940 const struct cfg80211_bitrate_mask *mask) 1941{ 1942 struct brcm_rateset_le rateset_le; 1943 s32 rate; 1944 s32 val; 1945 s32 err_bg; 1946 s32 err_a; 1947 u32 legacy; 1948 s32 err = 0; 1949 1950 WL_TRACE("Enter\n"); 1951 if (!check_sys_up(wiphy)) 1952 return -EIO; 1953 1954 /* addr param is always NULL. ignore it */ 1955 /* Get current rateset */ 1956 err = brcmf_exec_dcmd(ndev, BRCM_GET_CURR_RATESET, &rateset_le, 1957 sizeof(rateset_le)); 1958 if (err) { 1959 WL_ERR("could not get current rateset (%d)\n", err); 1960 goto done; 1961 } 1962 1963 legacy = ffs(mask->control[IEEE80211_BAND_2GHZ].legacy & 0xFFFF); 1964 if (!legacy) 1965 legacy = ffs(mask->control[IEEE80211_BAND_5GHZ].legacy & 1966 0xFFFF); 1967 1968 val = wl_g_rates[legacy - 1].bitrate * 100000; 1969 1970 if (val < le32_to_cpu(rateset_le.count)) 1971 /* Select rate by rateset index */ 1972 rate = rateset_le.rates[val] & 0x7f; 1973 else 1974 /* Specified rate in bps */ 1975 rate = val / 500000; 1976 1977 WL_CONN("rate %d mbps\n", rate / 2); 1978 1979 /* 1980 * 1981 * Set rate override, 1982 * Since the is a/b/g-blind, both a/bg_rate are enforced. 1983 */ 1984 err_bg = brcmf_dev_intvar_set(ndev, "bg_rate", rate); 1985 err_a = brcmf_dev_intvar_set(ndev, "a_rate", rate); 1986 if (err_bg && err_a) { 1987 WL_ERR("could not set fixed rate (%d) (%d)\n", err_bg, err_a); 1988 err = err_bg | err_a; 1989 } 1990 1991done: 1992 WL_TRACE("Exit\n"); 1993 return err; 1994} 1995 1996static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_priv *cfg_priv, 1997 struct brcmf_bss_info_le *bi) 1998{ 1999 struct wiphy *wiphy = cfg_to_wiphy(cfg_priv); 2000 struct ieee80211_channel *notify_channel; 2001 struct cfg80211_bss *bss; 2002 struct ieee80211_supported_band *band; 2003 s32 err = 0; 2004 u16 channel; 2005 u32 freq; 2006 u16 notify_capability; 2007 u16 notify_interval; 2008 u8 *notify_ie; 2009 size_t notify_ielen; 2010 s32 notify_signal; 2011 2012 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) { 2013 WL_ERR("Bss info is larger than buffer. Discarding\n"); 2014 return 0; 2015 } 2016 2017 channel = bi->ctl_ch ? bi->ctl_ch : 2018 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec)); 2019 2020 if (channel <= CH_MAX_2G_CHANNEL) 2021 band = wiphy->bands[IEEE80211_BAND_2GHZ]; 2022 else 2023 band = wiphy->bands[IEEE80211_BAND_5GHZ]; 2024 2025 freq = ieee80211_channel_to_frequency(channel, band->band); 2026 notify_channel = ieee80211_get_channel(wiphy, freq); 2027 2028 notify_capability = le16_to_cpu(bi->capability); 2029 notify_interval = le16_to_cpu(bi->beacon_period); 2030 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); 2031 notify_ielen = le32_to_cpu(bi->ie_length); 2032 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; 2033 2034 WL_CONN("bssid: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", 2035 bi->BSSID[0], bi->BSSID[1], bi->BSSID[2], 2036 bi->BSSID[3], bi->BSSID[4], bi->BSSID[5]); 2037 WL_CONN("Channel: %d(%d)\n", channel, freq); 2038 WL_CONN("Capability: %X\n", notify_capability); 2039 WL_CONN("Beacon interval: %d\n", notify_interval); 2040 WL_CONN("Signal: %d\n", notify_signal); 2041 2042 bss = cfg80211_inform_bss(wiphy, notify_channel, (const u8 *)bi->BSSID, 2043 0, notify_capability, notify_interval, notify_ie, 2044 notify_ielen, notify_signal, GFP_KERNEL); 2045 2046 if (!bss) 2047 return -ENOMEM; 2048 2049 cfg80211_put_bss(bss); 2050 2051 return err; 2052} 2053 2054static struct brcmf_bss_info_le * 2055next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss) 2056{ 2057 if (bss == NULL) 2058 return list->bss_info_le; 2059 return (struct brcmf_bss_info_le *)((unsigned long)bss + 2060 le32_to_cpu(bss->length)); 2061} 2062 2063static s32 brcmf_inform_bss(struct brcmf_cfg80211_priv *cfg_priv) 2064{ 2065 struct brcmf_scan_results *bss_list; 2066 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */ 2067 s32 err = 0; 2068 int i; 2069 2070 bss_list = cfg_priv->bss_list; 2071 if (bss_list->version != BRCMF_BSS_INFO_VERSION) { 2072 WL_ERR("Version %d != WL_BSS_INFO_VERSION\n", 2073 bss_list->version); 2074 return -EOPNOTSUPP; 2075 } 2076 WL_SCAN("scanned AP count (%d)\n", bss_list->count); 2077 for (i = 0; i < bss_list->count && i < WL_AP_MAX; i++) { 2078 bi = next_bss_le(bss_list, bi); 2079 err = brcmf_inform_single_bss(cfg_priv, bi); 2080 if (err) 2081 break; 2082 } 2083 return err; 2084} 2085 2086static s32 wl_inform_ibss(struct brcmf_cfg80211_priv *cfg_priv, 2087 struct net_device *ndev, const u8 *bssid) 2088{ 2089 struct wiphy *wiphy = cfg_to_wiphy(cfg_priv); 2090 struct ieee80211_channel *notify_channel; 2091 struct brcmf_bss_info_le *bi = NULL; 2092 struct ieee80211_supported_band *band; 2093 struct cfg80211_bss *bss; 2094 u8 *buf = NULL; 2095 s32 err = 0; 2096 u16 channel; 2097 u32 freq; 2098 u16 notify_capability; 2099 u16 notify_interval; 2100 u8 *notify_ie; 2101 size_t notify_ielen; 2102 s32 notify_signal; 2103 2104 WL_TRACE("Enter\n"); 2105 2106 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 2107 if (buf == NULL) { 2108 err = -ENOMEM; 2109 goto CleanUp; 2110 } 2111 2112 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); 2113 2114 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_BSS_INFO, buf, WL_BSS_INFO_MAX); 2115 if (err) { 2116 WL_ERR("WLC_GET_BSS_INFO failed: %d\n", err); 2117 goto CleanUp; 2118 } 2119 2120 bi = (struct brcmf_bss_info_le *)(buf + 4); 2121 2122 channel = bi->ctl_ch ? bi->ctl_ch : 2123 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec)); 2124 2125 if (channel <= CH_MAX_2G_CHANNEL) 2126 band = wiphy->bands[IEEE80211_BAND_2GHZ]; 2127 else 2128 band = wiphy->bands[IEEE80211_BAND_5GHZ]; 2129 2130 freq = ieee80211_channel_to_frequency(channel, band->band); 2131 notify_channel = ieee80211_get_channel(wiphy, freq); 2132 2133 notify_capability = le16_to_cpu(bi->capability); 2134 notify_interval = le16_to_cpu(bi->beacon_period); 2135 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); 2136 notify_ielen = le32_to_cpu(bi->ie_length); 2137 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; 2138 2139 WL_CONN("channel: %d(%d)\n", channel, freq); 2140 WL_CONN("capability: %X\n", notify_capability); 2141 WL_CONN("beacon interval: %d\n", notify_interval); 2142 WL_CONN("signal: %d\n", notify_signal); 2143 2144 bss = cfg80211_inform_bss(wiphy, notify_channel, bssid, 2145 0, notify_capability, notify_interval, 2146 notify_ie, notify_ielen, notify_signal, GFP_KERNEL); 2147 2148 if (!bss) { 2149 err = -ENOMEM; 2150 goto CleanUp; 2151 } 2152 2153 cfg80211_put_bss(bss); 2154 2155CleanUp: 2156 2157 kfree(buf); 2158 2159 WL_TRACE("Exit\n"); 2160 2161 return err; 2162} 2163 2164static bool brcmf_is_ibssmode(struct brcmf_cfg80211_priv *cfg_priv) 2165{ 2166 return cfg_priv->conf->mode == WL_MODE_IBSS; 2167} 2168 2169/* 2170 * Traverse a string of 1-byte tag/1-byte length/variable-length value 2171 * triples, returning a pointer to the substring whose first element 2172 * matches tag 2173 */ 2174static struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key) 2175{ 2176 struct brcmf_tlv *elt; 2177 int totlen; 2178 2179 elt = (struct brcmf_tlv *) buf; 2180 totlen = buflen; 2181 2182 /* find tagged parameter */ 2183 while (totlen >= 2) { 2184 int len = elt->len; 2185 2186 /* validate remaining totlen */ 2187 if ((elt->id == key) && (totlen >= (len + 2))) 2188 return elt; 2189 2190 elt = (struct brcmf_tlv *) ((u8 *) elt + (len + 2)); 2191 totlen -= (len + 2); 2192 } 2193 2194 return NULL; 2195} 2196 2197static s32 brcmf_update_bss_info(struct brcmf_cfg80211_priv *cfg_priv) 2198{ 2199 struct brcmf_bss_info_le *bi; 2200 struct brcmf_ssid *ssid; 2201 struct brcmf_tlv *tim; 2202 u16 beacon_interval; 2203 u8 dtim_period; 2204 size_t ie_len; 2205 u8 *ie; 2206 s32 err = 0; 2207 2208 WL_TRACE("Enter\n"); 2209 if (brcmf_is_ibssmode(cfg_priv)) 2210 return err; 2211 2212 ssid = (struct brcmf_ssid *)brcmf_read_prof(cfg_priv, WL_PROF_SSID); 2213 2214 *(__le32 *)cfg_priv->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX); 2215 err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCMF_C_GET_BSS_INFO, 2216 cfg_priv->extra_buf, WL_EXTRA_BUF_MAX); 2217 if (err) { 2218 WL_ERR("Could not get bss info %d\n", err); 2219 goto update_bss_info_out; 2220 } 2221 2222 bi = (struct brcmf_bss_info_le *)(cfg_priv->extra_buf + 4); 2223 err = brcmf_inform_single_bss(cfg_priv, bi); 2224 if (err) 2225 goto update_bss_info_out; 2226 2227 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); 2228 ie_len = le32_to_cpu(bi->ie_length); 2229 beacon_interval = le16_to_cpu(bi->beacon_period); 2230 2231 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM); 2232 if (tim) 2233 dtim_period = tim->data[1]; 2234 else { 2235 /* 2236 * active scan was done so we could not get dtim 2237 * information out of probe response. 2238 * so we speficially query dtim information to dongle. 2239 */ 2240 u32 var; 2241 err = brcmf_dev_intvar_get(cfg_to_ndev(cfg_priv), 2242 "dtim_assoc", &var); 2243 if (err) { 2244 WL_ERR("wl dtim_assoc failed (%d)\n", err); 2245 goto update_bss_info_out; 2246 } 2247 dtim_period = (u8)var; 2248 } 2249 2250 brcmf_update_prof(cfg_priv, NULL, &beacon_interval, WL_PROF_BEACONINT); 2251 brcmf_update_prof(cfg_priv, NULL, &dtim_period, WL_PROF_DTIMPERIOD); 2252 2253update_bss_info_out: 2254 WL_TRACE("Exit"); 2255 return err; 2256} 2257 2258static void brcmf_term_iscan(struct brcmf_cfg80211_priv *cfg_priv) 2259{ 2260 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv); 2261 struct brcmf_ssid ssid; 2262 2263 if (cfg_priv->iscan_on) { 2264 iscan->state = WL_ISCAN_STATE_IDLE; 2265 2266 if (iscan->timer_on) { 2267 del_timer_sync(&iscan->timer); 2268 iscan->timer_on = 0; 2269 } 2270 2271 cancel_work_sync(&iscan->work); 2272 2273 /* Abort iscan running in FW */ 2274 memset(&ssid, 0, sizeof(ssid)); 2275 brcmf_run_iscan(iscan, &ssid, WL_SCAN_ACTION_ABORT); 2276 } 2277} 2278 2279static void brcmf_notify_iscan_complete(struct brcmf_cfg80211_iscan_ctrl *iscan, 2280 bool aborted) 2281{ 2282 struct brcmf_cfg80211_priv *cfg_priv = iscan_to_cfg(iscan); 2283 struct net_device *ndev = cfg_to_ndev(cfg_priv); 2284 2285 if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg_priv->status)) { 2286 WL_ERR("Scan complete while device not scanning\n"); 2287 return; 2288 } 2289 if (cfg_priv->scan_request) { 2290 WL_SCAN("ISCAN Completed scan: %s\n", 2291 aborted ? "Aborted" : "Done"); 2292 cfg80211_scan_done(cfg_priv->scan_request, aborted); 2293 brcmf_set_mpc(ndev, 1); 2294 cfg_priv->scan_request = NULL; 2295 } 2296 cfg_priv->iscan_kickstart = false; 2297} 2298 2299static s32 brcmf_wakeup_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan) 2300{ 2301 if (iscan->state != WL_ISCAN_STATE_IDLE) { 2302 WL_SCAN("wake up iscan\n"); 2303 schedule_work(&iscan->work); 2304 return 0; 2305 } 2306 2307 return -EIO; 2308} 2309 2310static s32 2311brcmf_get_iscan_results(struct brcmf_cfg80211_iscan_ctrl *iscan, u32 *status, 2312 struct brcmf_scan_results **bss_list) 2313{ 2314 struct brcmf_iscan_results list; 2315 struct brcmf_scan_results *results; 2316 struct brcmf_scan_results_le *results_le; 2317 struct brcmf_iscan_results *list_buf; 2318 s32 err = 0; 2319 2320 memset(iscan->scan_buf, 0, WL_ISCAN_BUF_MAX); 2321 list_buf = (struct brcmf_iscan_results *)iscan->scan_buf; 2322 results = &list_buf->results; 2323 results_le = &list_buf->results_le; 2324 results->buflen = BRCMF_ISCAN_RESULTS_FIXED_SIZE; 2325 results->version = 0; 2326 results->count = 0; 2327 2328 memset(&list, 0, sizeof(list)); 2329 list.results_le.buflen = cpu_to_le32(WL_ISCAN_BUF_MAX); 2330 err = brcmf_dev_iovar_getbuf(iscan->ndev, "iscanresults", &list, 2331 BRCMF_ISCAN_RESULTS_FIXED_SIZE, 2332 iscan->scan_buf, WL_ISCAN_BUF_MAX); 2333 if (err) { 2334 WL_ERR("error (%d)\n", err); 2335 return err; 2336 } 2337 results->buflen = le32_to_cpu(results_le->buflen); 2338 results->version = le32_to_cpu(results_le->version); 2339 results->count = le32_to_cpu(results_le->count); 2340 WL_SCAN("results->count = %d\n", results_le->count); 2341 WL_SCAN("results->buflen = %d\n", results_le->buflen); 2342 *status = le32_to_cpu(list_buf->status_le); 2343 WL_SCAN("status = %d\n", *status); 2344 *bss_list = results; 2345 2346 return err; 2347} 2348 2349static s32 brcmf_iscan_done(struct brcmf_cfg80211_priv *cfg_priv) 2350{ 2351 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan; 2352 s32 err = 0; 2353 2354 iscan->state = WL_ISCAN_STATE_IDLE; 2355 brcmf_inform_bss(cfg_priv); 2356 brcmf_notify_iscan_complete(iscan, false); 2357 2358 return err; 2359} 2360 2361static s32 brcmf_iscan_pending(struct brcmf_cfg80211_priv *cfg_priv) 2362{ 2363 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan; 2364 s32 err = 0; 2365 2366 /* Reschedule the timer */ 2367 mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000); 2368 iscan->timer_on = 1; 2369 2370 return err; 2371} 2372 2373static s32 brcmf_iscan_inprogress(struct brcmf_cfg80211_priv *cfg_priv) 2374{ 2375 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan; 2376 s32 err = 0; 2377 2378 brcmf_inform_bss(cfg_priv); 2379 brcmf_run_iscan(iscan, NULL, BRCMF_SCAN_ACTION_CONTINUE); 2380 /* Reschedule the timer */ 2381 mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000); 2382 iscan->timer_on = 1; 2383 2384 return err; 2385} 2386 2387static s32 brcmf_iscan_aborted(struct brcmf_cfg80211_priv *cfg_priv) 2388{ 2389 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan; 2390 s32 err = 0; 2391 2392 iscan->state = WL_ISCAN_STATE_IDLE; 2393 brcmf_notify_iscan_complete(iscan, true); 2394 2395 return err; 2396} 2397 2398static void brcmf_cfg80211_iscan_handler(struct work_struct *work) 2399{ 2400 struct brcmf_cfg80211_iscan_ctrl *iscan = 2401 container_of(work, struct brcmf_cfg80211_iscan_ctrl, 2402 work); 2403 struct brcmf_cfg80211_priv *cfg_priv = iscan_to_cfg(iscan); 2404 struct brcmf_cfg80211_iscan_eloop *el = &iscan->el; 2405 u32 status = BRCMF_SCAN_RESULTS_PARTIAL; 2406 2407 if (iscan->timer_on) { 2408 del_timer_sync(&iscan->timer); 2409 iscan->timer_on = 0; 2410 } 2411 2412 if (brcmf_get_iscan_results(iscan, &status, &cfg_priv->bss_list)) { 2413 status = BRCMF_SCAN_RESULTS_ABORTED; 2414 WL_ERR("Abort iscan\n"); 2415 } 2416 2417 el->handler[status](cfg_priv); 2418} 2419 2420static void brcmf_iscan_timer(unsigned long data) 2421{ 2422 struct brcmf_cfg80211_iscan_ctrl *iscan = 2423 (struct brcmf_cfg80211_iscan_ctrl *)data; 2424 2425 if (iscan) { 2426 iscan->timer_on = 0; 2427 WL_SCAN("timer expired\n"); 2428 brcmf_wakeup_iscan(iscan); 2429 } 2430} 2431 2432static s32 brcmf_invoke_iscan(struct brcmf_cfg80211_priv *cfg_priv) 2433{ 2434 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv); 2435 2436 if (cfg_priv->iscan_on) { 2437 iscan->state = WL_ISCAN_STATE_IDLE; 2438 INIT_WORK(&iscan->work, brcmf_cfg80211_iscan_handler); 2439 } 2440 2441 return 0; 2442} 2443 2444static void brcmf_init_iscan_eloop(struct brcmf_cfg80211_iscan_eloop *el) 2445{ 2446 memset(el, 0, sizeof(*el)); 2447 el->handler[BRCMF_SCAN_RESULTS_SUCCESS] = brcmf_iscan_done; 2448 el->handler[BRCMF_SCAN_RESULTS_PARTIAL] = brcmf_iscan_inprogress; 2449 el->handler[BRCMF_SCAN_RESULTS_PENDING] = brcmf_iscan_pending; 2450 el->handler[BRCMF_SCAN_RESULTS_ABORTED] = brcmf_iscan_aborted; 2451 el->handler[BRCMF_SCAN_RESULTS_NO_MEM] = brcmf_iscan_aborted; 2452} 2453 2454static s32 brcmf_init_iscan(struct brcmf_cfg80211_priv *cfg_priv) 2455{ 2456 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv); 2457 int err = 0; 2458 2459 if (cfg_priv->iscan_on) { 2460 iscan->ndev = cfg_to_ndev(cfg_priv); 2461 brcmf_init_iscan_eloop(&iscan->el); 2462 iscan->timer_ms = WL_ISCAN_TIMER_INTERVAL_MS; 2463 init_timer(&iscan->timer); 2464 iscan->timer.data = (unsigned long) iscan; 2465 iscan->timer.function = brcmf_iscan_timer; 2466 err = brcmf_invoke_iscan(cfg_priv); 2467 if (!err) 2468 iscan->data = cfg_priv; 2469 } 2470 2471 return err; 2472} 2473 2474static __always_inline void brcmf_delay(u32 ms) 2475{ 2476 if (ms < 1000 / HZ) { 2477 cond_resched(); 2478 mdelay(ms); 2479 } else { 2480 msleep(ms); 2481 } 2482} 2483 2484static s32 brcmf_cfg80211_resume(struct wiphy *wiphy) 2485{ 2486 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 2487 2488 /* 2489 * Check for WL_STATUS_READY before any function call which 2490 * could result is bus access. Don't block the resume for 2491 * any driver error conditions 2492 */ 2493 WL_TRACE("Enter\n"); 2494 2495 if (test_bit(WL_STATUS_READY, &cfg_priv->status)) 2496 brcmf_invoke_iscan(wiphy_to_cfg(wiphy)); 2497 2498 WL_TRACE("Exit\n"); 2499 return 0; 2500} 2501 2502static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy, 2503 struct cfg80211_wowlan *wow) 2504{ 2505 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 2506 struct net_device *ndev = cfg_to_ndev(cfg_priv); 2507 2508 WL_TRACE("Enter\n"); 2509 2510 /* 2511 * Check for WL_STATUS_READY before any function call which 2512 * could result is bus access. Don't block the suspend for 2513 * any driver error conditions 2514 */ 2515 2516 /* 2517 * While going to suspend if associated with AP disassociate 2518 * from AP to save power while system is in suspended state 2519 */ 2520 if ((test_bit(WL_STATUS_CONNECTED, &cfg_priv->status) || 2521 test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) && 2522 test_bit(WL_STATUS_READY, &cfg_priv->status)) { 2523 WL_INFO("Disassociating from AP" 2524 " while entering suspend state\n"); 2525 brcmf_link_down(cfg_priv); 2526 2527 /* 2528 * Make sure WPA_Supplicant receives all the event 2529 * generated due to DISASSOC call to the fw to keep 2530 * the state fw and WPA_Supplicant state consistent 2531 */ 2532 brcmf_delay(500); 2533 } 2534 2535 set_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status); 2536 if (test_bit(WL_STATUS_READY, &cfg_priv->status)) 2537 brcmf_term_iscan(cfg_priv); 2538 2539 if (cfg_priv->scan_request) { 2540 /* Indidate scan abort to cfg80211 layer */ 2541 WL_INFO("Terminating scan in progress\n"); 2542 cfg80211_scan_done(cfg_priv->scan_request, true); 2543 cfg_priv->scan_request = NULL; 2544 } 2545 clear_bit(WL_STATUS_SCANNING, &cfg_priv->status); 2546 clear_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status); 2547 2548 /* Turn off watchdog timer */ 2549 if (test_bit(WL_STATUS_READY, &cfg_priv->status)) { 2550 WL_INFO("Enable MPC\n"); 2551 brcmf_set_mpc(ndev, 1); 2552 } 2553 2554 WL_TRACE("Exit\n"); 2555 2556 return 0; 2557} 2558 2559static __used s32 2560brcmf_dev_bufvar_set(struct net_device *ndev, s8 *name, s8 *buf, s32 len) 2561{ 2562 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 2563 u32 buflen; 2564 2565 buflen = brcmf_c_mkiovar(name, buf, len, cfg_priv->dcmd_buf, 2566 WL_DCMD_LEN_MAX); 2567 BUG_ON(!buflen); 2568 2569 return brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, cfg_priv->dcmd_buf, 2570 buflen); 2571} 2572 2573static s32 2574brcmf_dev_bufvar_get(struct net_device *ndev, s8 *name, s8 *buf, 2575 s32 buf_len) 2576{ 2577 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 2578 u32 len; 2579 s32 err = 0; 2580 2581 len = brcmf_c_mkiovar(name, NULL, 0, cfg_priv->dcmd_buf, 2582 WL_DCMD_LEN_MAX); 2583 BUG_ON(!len); 2584 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, cfg_priv->dcmd_buf, 2585 WL_DCMD_LEN_MAX); 2586 if (err) { 2587 WL_ERR("error (%d)\n", err); 2588 return err; 2589 } 2590 memcpy(buf, cfg_priv->dcmd_buf, buf_len); 2591 2592 return err; 2593} 2594 2595static __used s32 2596brcmf_update_pmklist(struct net_device *ndev, 2597 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err) 2598{ 2599 int i, j; 2600 int pmkid_len; 2601 2602 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid); 2603 2604 WL_CONN("No of elements %d\n", pmkid_len); 2605 for (i = 0; i < pmkid_len; i++) { 2606 WL_CONN("PMKID[%d]: %pM =\n", i, 2607 &pmk_list->pmkids.pmkid[i].BSSID); 2608 for (j = 0; j < WLAN_PMKID_LEN; j++) 2609 WL_CONN("%02x\n", pmk_list->pmkids.pmkid[i].PMKID[j]); 2610 } 2611 2612 if (!err) 2613 brcmf_dev_bufvar_set(ndev, "pmkid_info", (char *)pmk_list, 2614 sizeof(*pmk_list)); 2615 2616 return err; 2617} 2618 2619static s32 2620brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev, 2621 struct cfg80211_pmksa *pmksa) 2622{ 2623 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 2624 struct pmkid_list *pmkids = &cfg_priv->pmk_list->pmkids; 2625 s32 err = 0; 2626 int i; 2627 int pmkid_len; 2628 2629 WL_TRACE("Enter\n"); 2630 if (!check_sys_up(wiphy)) 2631 return -EIO; 2632 2633 pmkid_len = le32_to_cpu(pmkids->npmkid); 2634 for (i = 0; i < pmkid_len; i++) 2635 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN)) 2636 break; 2637 if (i < WL_NUM_PMKIDS_MAX) { 2638 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN); 2639 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN); 2640 if (i == pmkid_len) { 2641 pmkid_len++; 2642 pmkids->npmkid = cpu_to_le32(pmkid_len); 2643 } 2644 } else 2645 err = -EINVAL; 2646 2647 WL_CONN("set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n", 2648 pmkids->pmkid[pmkid_len].BSSID); 2649 for (i = 0; i < WLAN_PMKID_LEN; i++) 2650 WL_CONN("%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]); 2651 2652 err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err); 2653 2654 WL_TRACE("Exit\n"); 2655 return err; 2656} 2657 2658static s32 2659brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev, 2660 struct cfg80211_pmksa *pmksa) 2661{ 2662 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 2663 struct pmkid_list pmkid; 2664 s32 err = 0; 2665 int i, pmkid_len; 2666 2667 WL_TRACE("Enter\n"); 2668 if (!check_sys_up(wiphy)) 2669 return -EIO; 2670 2671 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN); 2672 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN); 2673 2674 WL_CONN("del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n", 2675 &pmkid.pmkid[0].BSSID); 2676 for (i = 0; i < WLAN_PMKID_LEN; i++) 2677 WL_CONN("%02x\n", pmkid.pmkid[0].PMKID[i]); 2678 2679 pmkid_len = le32_to_cpu(cfg_priv->pmk_list->pmkids.npmkid); 2680 for (i = 0; i < pmkid_len; i++) 2681 if (!memcmp 2682 (pmksa->bssid, &cfg_priv->pmk_list->pmkids.pmkid[i].BSSID, 2683 ETH_ALEN)) 2684 break; 2685 2686 if ((pmkid_len > 0) 2687 && (i < pmkid_len)) { 2688 memset(&cfg_priv->pmk_list->pmkids.pmkid[i], 0, 2689 sizeof(struct pmkid)); 2690 for (; i < (pmkid_len - 1); i++) { 2691 memcpy(&cfg_priv->pmk_list->pmkids.pmkid[i].BSSID, 2692 &cfg_priv->pmk_list->pmkids.pmkid[i + 1].BSSID, 2693 ETH_ALEN); 2694 memcpy(&cfg_priv->pmk_list->pmkids.pmkid[i].PMKID, 2695 &cfg_priv->pmk_list->pmkids.pmkid[i + 1].PMKID, 2696 WLAN_PMKID_LEN); 2697 } 2698 cfg_priv->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1); 2699 } else 2700 err = -EINVAL; 2701 2702 err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err); 2703 2704 WL_TRACE("Exit\n"); 2705 return err; 2706 2707} 2708 2709static s32 2710brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev) 2711{ 2712 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); 2713 s32 err = 0; 2714 2715 WL_TRACE("Enter\n"); 2716 if (!check_sys_up(wiphy)) 2717 return -EIO; 2718 2719 memset(cfg_priv->pmk_list, 0, sizeof(*cfg_priv->pmk_list)); 2720 err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err); 2721 2722 WL_TRACE("Exit\n"); 2723 return err; 2724 2725} 2726 2727static struct cfg80211_ops wl_cfg80211_ops = { 2728 .change_virtual_intf = brcmf_cfg80211_change_iface, 2729 .scan = brcmf_cfg80211_scan, 2730 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params, 2731 .join_ibss = brcmf_cfg80211_join_ibss, 2732 .leave_ibss = brcmf_cfg80211_leave_ibss, 2733 .get_station = brcmf_cfg80211_get_station, 2734 .set_tx_power = brcmf_cfg80211_set_tx_power, 2735 .get_tx_power = brcmf_cfg80211_get_tx_power, 2736 .add_key = brcmf_cfg80211_add_key, 2737 .del_key = brcmf_cfg80211_del_key, 2738 .get_key = brcmf_cfg80211_get_key, 2739 .set_default_key = brcmf_cfg80211_config_default_key, 2740 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key, 2741 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt, 2742 .set_bitrate_mask = brcmf_cfg80211_set_bitrate_mask, 2743 .connect = brcmf_cfg80211_connect, 2744 .disconnect = brcmf_cfg80211_disconnect, 2745 .suspend = brcmf_cfg80211_suspend, 2746 .resume = brcmf_cfg80211_resume, 2747 .set_pmksa = brcmf_cfg80211_set_pmksa, 2748 .del_pmksa = brcmf_cfg80211_del_pmksa, 2749 .flush_pmksa = brcmf_cfg80211_flush_pmksa 2750}; 2751 2752static s32 brcmf_mode_to_nl80211_iftype(s32 mode) 2753{ 2754 s32 err = 0; 2755 2756 switch (mode) { 2757 case WL_MODE_BSS: 2758 return NL80211_IFTYPE_STATION; 2759 case WL_MODE_IBSS: 2760 return NL80211_IFTYPE_ADHOC; 2761 default: 2762 return NL80211_IFTYPE_UNSPECIFIED; 2763 } 2764 2765 return err; 2766} 2767 2768static struct wireless_dev *brcmf_alloc_wdev(s32 sizeof_iface, 2769 struct device *ndev) 2770{ 2771 struct wireless_dev *wdev; 2772 s32 err = 0; 2773 2774 wdev = kzalloc(sizeof(*wdev), GFP_KERNEL); 2775 if (!wdev) 2776 return ERR_PTR(-ENOMEM); 2777 2778 wdev->wiphy = 2779 wiphy_new(&wl_cfg80211_ops, 2780 sizeof(struct brcmf_cfg80211_priv) + sizeof_iface); 2781 if (!wdev->wiphy) { 2782 WL_ERR("Could not allocate wiphy device\n"); 2783 err = -ENOMEM; 2784 goto wiphy_new_out; 2785 } 2786 set_wiphy_dev(wdev->wiphy, ndev); 2787 wdev->wiphy->max_scan_ssids = WL_NUM_SCAN_MAX; 2788 wdev->wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX; 2789 wdev->wiphy->interface_modes = 2790 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); 2791 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz; 2792 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_a; /* Set 2793 * it as 11a by default. 2794 * This will be updated with 2795 * 11n phy tables in 2796 * "ifconfig up" 2797 * if phy has 11n capability 2798 */ 2799 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 2800 wdev->wiphy->cipher_suites = __wl_cipher_suites; 2801 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites); 2802 wdev->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; /* enable power 2803 * save mode 2804 * by default 2805 */ 2806 err = wiphy_register(wdev->wiphy); 2807 if (err < 0) { 2808 WL_ERR("Could not register wiphy device (%d)\n", err); 2809 goto wiphy_register_out; 2810 } 2811 return wdev; 2812 2813wiphy_register_out: 2814 wiphy_free(wdev->wiphy); 2815 2816wiphy_new_out: 2817 kfree(wdev); 2818 2819 return ERR_PTR(err); 2820} 2821 2822static void brcmf_free_wdev(struct brcmf_cfg80211_priv *cfg_priv) 2823{ 2824 struct wireless_dev *wdev = cfg_priv->wdev; 2825 2826 if (!wdev) { 2827 WL_ERR("wdev is invalid\n"); 2828 return; 2829 } 2830 wiphy_unregister(wdev->wiphy); 2831 wiphy_free(wdev->wiphy); 2832 kfree(wdev); 2833 cfg_priv->wdev = NULL; 2834} 2835 2836static bool brcmf_is_linkup(struct brcmf_cfg80211_priv *cfg_priv, 2837 const struct brcmf_event_msg *e) 2838{ 2839 u32 event = be32_to_cpu(e->event_type); 2840 u32 status = be32_to_cpu(e->status); 2841 2842 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) { 2843 WL_CONN("Processing set ssid\n"); 2844 cfg_priv->link_up = true; 2845 return true; 2846 } 2847 2848 return false; 2849} 2850 2851static bool brcmf_is_linkdown(struct brcmf_cfg80211_priv *cfg_priv, 2852 const struct brcmf_event_msg *e) 2853{ 2854 u32 event = be32_to_cpu(e->event_type); 2855 u16 flags = be16_to_cpu(e->flags); 2856 2857 if (event == BRCMF_E_LINK && (!(flags & BRCMF_EVENT_MSG_LINK))) { 2858 WL_CONN("Processing link down\n"); 2859 return true; 2860 } 2861 return false; 2862} 2863 2864static bool brcmf_is_nonetwork(struct brcmf_cfg80211_priv *cfg_priv, 2865 const struct brcmf_event_msg *e) 2866{ 2867 u32 event = be32_to_cpu(e->event_type); 2868 u32 status = be32_to_cpu(e->status); 2869 2870 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) { 2871 WL_CONN("Processing Link %s & no network found\n", 2872 be16_to_cpu(e->flags) & BRCMF_EVENT_MSG_LINK ? 2873 "up" : "down"); 2874 return true; 2875 } 2876 2877 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) { 2878 WL_CONN("Processing connecting & no network found\n"); 2879 return true; 2880 } 2881 2882 return false; 2883} 2884 2885static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv) 2886{ 2887 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv); 2888 2889 kfree(conn_info->req_ie); 2890 conn_info->req_ie = NULL; 2891 conn_info->req_ie_len = 0; 2892 kfree(conn_info->resp_ie); 2893 conn_info->resp_ie = NULL; 2894 conn_info->resp_ie_len = 0; 2895} 2896 2897static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv) 2898{ 2899 struct net_device *ndev = cfg_to_ndev(cfg_priv); 2900 struct brcmf_cfg80211_assoc_ielen_le *assoc_info; 2901 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv); 2902 u32 req_len; 2903 u32 resp_len; 2904 s32 err = 0; 2905 2906 brcmf_clear_assoc_ies(cfg_priv); 2907 2908 err = brcmf_dev_bufvar_get(ndev, "assoc_info", cfg_priv->extra_buf, 2909 WL_ASSOC_INFO_MAX); 2910 if (err) { 2911 WL_ERR("could not get assoc info (%d)\n", err); 2912 return err; 2913 } 2914 assoc_info = 2915 (struct brcmf_cfg80211_assoc_ielen_le *)cfg_priv->extra_buf; 2916 req_len = le32_to_cpu(assoc_info->req_len); 2917 resp_len = le32_to_cpu(assoc_info->resp_len); 2918 if (req_len) { 2919 err = brcmf_dev_bufvar_get(ndev, "assoc_req_ies", 2920 cfg_priv->extra_buf, 2921 WL_ASSOC_INFO_MAX); 2922 if (err) { 2923 WL_ERR("could not get assoc req (%d)\n", err); 2924 return err; 2925 } 2926 conn_info->req_ie_len = req_len; 2927 conn_info->req_ie = 2928 kmemdup(cfg_priv->extra_buf, conn_info->req_ie_len, 2929 GFP_KERNEL); 2930 } else { 2931 conn_info->req_ie_len = 0; 2932 conn_info->req_ie = NULL; 2933 } 2934 if (resp_len) { 2935 err = brcmf_dev_bufvar_get(ndev, "assoc_resp_ies", 2936 cfg_priv->extra_buf, 2937 WL_ASSOC_INFO_MAX); 2938 if (err) { 2939 WL_ERR("could not get assoc resp (%d)\n", err); 2940 return err; 2941 } 2942 conn_info->resp_ie_len = resp_len; 2943 conn_info->resp_ie = 2944 kmemdup(cfg_priv->extra_buf, conn_info->resp_ie_len, 2945 GFP_KERNEL); 2946 } else { 2947 conn_info->resp_ie_len = 0; 2948 conn_info->resp_ie = NULL; 2949 } 2950 WL_CONN("req len (%d) resp len (%d)\n", 2951 conn_info->req_ie_len, conn_info->resp_ie_len); 2952 2953 return err; 2954} 2955 2956static s32 2957brcmf_bss_roaming_done(struct brcmf_cfg80211_priv *cfg_priv, 2958 struct net_device *ndev, 2959 const struct brcmf_event_msg *e) 2960{ 2961 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv); 2962 struct wiphy *wiphy = cfg_to_wiphy(cfg_priv); 2963 struct brcmf_channel_info_le channel_le; 2964 struct ieee80211_channel *notify_channel; 2965 struct ieee80211_supported_band *band; 2966 u32 freq; 2967 s32 err = 0; 2968 u32 target_channel; 2969 2970 WL_TRACE("Enter\n"); 2971 2972 brcmf_get_assoc_ies(cfg_priv); 2973 brcmf_update_prof(cfg_priv, NULL, &e->addr, WL_PROF_BSSID); 2974 brcmf_update_bss_info(cfg_priv); 2975 2976 brcmf_exec_dcmd(ndev, BRCMF_C_GET_CHANNEL, &channel_le, 2977 sizeof(channel_le)); 2978 2979 target_channel = le32_to_cpu(channel_le.target_channel); 2980 WL_CONN("Roamed to channel %d\n", target_channel); 2981 2982 if (target_channel <= CH_MAX_2G_CHANNEL) 2983 band = wiphy->bands[IEEE80211_BAND_2GHZ]; 2984 else 2985 band = wiphy->bands[IEEE80211_BAND_5GHZ]; 2986 2987 freq = ieee80211_channel_to_frequency(target_channel, band->band); 2988 notify_channel = ieee80211_get_channel(wiphy, freq); 2989 2990 cfg80211_roamed(ndev, notify_channel, 2991 (u8 *)brcmf_read_prof(cfg_priv, WL_PROF_BSSID), 2992 conn_info->req_ie, conn_info->req_ie_len, 2993 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL); 2994 WL_CONN("Report roaming result\n"); 2995 2996 set_bit(WL_STATUS_CONNECTED, &cfg_priv->status); 2997 WL_TRACE("Exit\n"); 2998 return err; 2999} 3000 3001static s32 3002brcmf_bss_connect_done(struct brcmf_cfg80211_priv *cfg_priv, 3003 struct net_device *ndev, const struct brcmf_event_msg *e, 3004 bool completed) 3005{ 3006 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv); 3007 s32 err = 0; 3008 3009 WL_TRACE("Enter\n"); 3010 3011 if (test_and_clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) { 3012 if (completed) { 3013 brcmf_get_assoc_ies(cfg_priv); 3014 brcmf_update_prof(cfg_priv, NULL, &e->addr, 3015 WL_PROF_BSSID); 3016 brcmf_update_bss_info(cfg_priv); 3017 } 3018 cfg80211_connect_result(ndev, 3019 (u8 *)brcmf_read_prof(cfg_priv, 3020 WL_PROF_BSSID), 3021 conn_info->req_ie, 3022 conn_info->req_ie_len, 3023 conn_info->resp_ie, 3024 conn_info->resp_ie_len, 3025 completed ? WLAN_STATUS_SUCCESS : 3026 WLAN_STATUS_AUTH_TIMEOUT, 3027 GFP_KERNEL); 3028 if (completed) 3029 set_bit(WL_STATUS_CONNECTED, &cfg_priv->status); 3030 WL_CONN("Report connect result - connection %s\n", 3031 completed ? "succeeded" : "failed"); 3032 } 3033 WL_TRACE("Exit\n"); 3034 return err; 3035} 3036 3037static s32 3038brcmf_notify_connect_status(struct brcmf_cfg80211_priv *cfg_priv, 3039 struct net_device *ndev, 3040 const struct brcmf_event_msg *e, void *data) 3041{ 3042 s32 err = 0; 3043 3044 if (brcmf_is_linkup(cfg_priv, e)) { 3045 WL_CONN("Linkup\n"); 3046 if (brcmf_is_ibssmode(cfg_priv)) { 3047 brcmf_update_prof(cfg_priv, NULL, (void *)e->addr, 3048 WL_PROF_BSSID); 3049 wl_inform_ibss(cfg_priv, ndev, e->addr); 3050 cfg80211_ibss_joined(ndev, e->addr, GFP_KERNEL); 3051 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); 3052 set_bit(WL_STATUS_CONNECTED, &cfg_priv->status); 3053 } else 3054 brcmf_bss_connect_done(cfg_priv, ndev, e, true); 3055 } else if (brcmf_is_linkdown(cfg_priv, e)) { 3056 WL_CONN("Linkdown\n"); 3057 if (brcmf_is_ibssmode(cfg_priv)) { 3058 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); 3059 if (test_and_clear_bit(WL_STATUS_CONNECTED, 3060 &cfg_priv->status)) 3061 brcmf_link_down(cfg_priv); 3062 } else { 3063 brcmf_bss_connect_done(cfg_priv, ndev, e, false); 3064 if (test_and_clear_bit(WL_STATUS_CONNECTED, 3065 &cfg_priv->status)) { 3066 cfg80211_disconnected(ndev, 0, NULL, 0, 3067 GFP_KERNEL); 3068 brcmf_link_down(cfg_priv); 3069 } 3070 } 3071 brcmf_init_prof(cfg_priv->profile); 3072 } else if (brcmf_is_nonetwork(cfg_priv, e)) { 3073 if (brcmf_is_ibssmode(cfg_priv)) 3074 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); 3075 else 3076 brcmf_bss_connect_done(cfg_priv, ndev, e, false); 3077 } 3078 3079 return err; 3080} 3081 3082static s32 3083brcmf_notify_roaming_status(struct brcmf_cfg80211_priv *cfg_priv, 3084 struct net_device *ndev, 3085 const struct brcmf_event_msg *e, void *data) 3086{ 3087 s32 err = 0; 3088 u32 event = be32_to_cpu(e->event_type); 3089 u32 status = be32_to_cpu(e->status); 3090 3091 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) { 3092 if (test_bit(WL_STATUS_CONNECTED, &cfg_priv->status)) 3093 brcmf_bss_roaming_done(cfg_priv, ndev, e); 3094 else 3095 brcmf_bss_connect_done(cfg_priv, ndev, e, true); 3096 } 3097 3098 return err; 3099} 3100 3101static s32 3102brcmf_notify_mic_status(struct brcmf_cfg80211_priv *cfg_priv, 3103 struct net_device *ndev, 3104 const struct brcmf_event_msg *e, void *data) 3105{ 3106 u16 flags = be16_to_cpu(e->flags); 3107 enum nl80211_key_type key_type; 3108 3109 if (flags & BRCMF_EVENT_MSG_GROUP) 3110 key_type = NL80211_KEYTYPE_GROUP; 3111 else 3112 key_type = NL80211_KEYTYPE_PAIRWISE; 3113 3114 cfg80211_michael_mic_failure(ndev, (u8 *)&e->addr, key_type, -1, 3115 NULL, GFP_KERNEL); 3116 3117 return 0; 3118} 3119 3120static s32 3121brcmf_notify_scan_status(struct brcmf_cfg80211_priv *cfg_priv, 3122 struct net_device *ndev, 3123 const struct brcmf_event_msg *e, void *data) 3124{ 3125 struct brcmf_channel_info_le channel_inform_le; 3126 struct brcmf_scan_results_le *bss_list_le; 3127 u32 len = WL_SCAN_BUF_MAX; 3128 s32 err = 0; 3129 bool scan_abort = false; 3130 u32 scan_channel; 3131 3132 WL_TRACE("Enter\n"); 3133 3134 if (cfg_priv->iscan_on && cfg_priv->iscan_kickstart) { 3135 WL_TRACE("Exit\n"); 3136 return brcmf_wakeup_iscan(cfg_to_iscan(cfg_priv)); 3137 } 3138 3139 if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg_priv->status)) { 3140 WL_ERR("Scan complete while device not scanning\n"); 3141 scan_abort = true; 3142 err = -EINVAL; 3143 goto scan_done_out; 3144 } 3145 3146 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_CHANNEL, &channel_inform_le, 3147 sizeof(channel_inform_le)); 3148 if (err) { 3149 WL_ERR("scan busy (%d)\n", err); 3150 scan_abort = true; 3151 goto scan_done_out; 3152 } 3153 scan_channel = le32_to_cpu(channel_inform_le.scan_channel); 3154 if (scan_channel) 3155 WL_CONN("channel_inform.scan_channel (%d)\n", scan_channel); 3156 cfg_priv->bss_list = cfg_priv->scan_results; 3157 bss_list_le = (struct brcmf_scan_results_le *) cfg_priv->bss_list; 3158 3159 memset(cfg_priv->scan_results, 0, len); 3160 bss_list_le->buflen = cpu_to_le32(len); 3161 err = brcmf_exec_dcmd(ndev, BRCMF_C_SCAN_RESULTS, 3162 cfg_priv->scan_results, len); 3163 if (err) { 3164 WL_ERR("%s Scan_results error (%d)\n", ndev->name, err); 3165 err = -EINVAL; 3166 scan_abort = true; 3167 goto scan_done_out; 3168 } 3169 cfg_priv->scan_results->buflen = le32_to_cpu(bss_list_le->buflen); 3170 cfg_priv->scan_results->version = le32_to_cpu(bss_list_le->version); 3171 cfg_priv->scan_results->count = le32_to_cpu(bss_list_le->count); 3172 3173 err = brcmf_inform_bss(cfg_priv); 3174 if (err) { 3175 scan_abort = true; 3176 goto scan_done_out; 3177 } 3178 3179scan_done_out: 3180 if (cfg_priv->scan_request) { 3181 WL_SCAN("calling cfg80211_scan_done\n"); 3182 cfg80211_scan_done(cfg_priv->scan_request, scan_abort); 3183 brcmf_set_mpc(ndev, 1); 3184 cfg_priv->scan_request = NULL; 3185 } 3186 3187 WL_TRACE("Exit\n"); 3188 3189 return err; 3190} 3191 3192static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf) 3193{ 3194 conf->mode = (u32)-1; 3195 conf->frag_threshold = (u32)-1; 3196 conf->rts_threshold = (u32)-1; 3197 conf->retry_short = (u32)-1; 3198 conf->retry_long = (u32)-1; 3199 conf->tx_power = -1; 3200} 3201 3202static void brcmf_init_eloop_handler(struct brcmf_cfg80211_event_loop *el) 3203{ 3204 memset(el, 0, sizeof(*el)); 3205 el->handler[BRCMF_E_SCAN_COMPLETE] = brcmf_notify_scan_status; 3206 el->handler[BRCMF_E_LINK] = brcmf_notify_connect_status; 3207 el->handler[BRCMF_E_ROAM] = brcmf_notify_roaming_status; 3208 el->handler[BRCMF_E_MIC_ERROR] = brcmf_notify_mic_status; 3209 el->handler[BRCMF_E_SET_SSID] = brcmf_notify_connect_status; 3210} 3211 3212static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_priv *cfg_priv) 3213{ 3214 kfree(cfg_priv->scan_results); 3215 cfg_priv->scan_results = NULL; 3216 kfree(cfg_priv->bss_info); 3217 cfg_priv->bss_info = NULL; 3218 kfree(cfg_priv->conf); 3219 cfg_priv->conf = NULL; 3220 kfree(cfg_priv->profile); 3221 cfg_priv->profile = NULL; 3222 kfree(cfg_priv->scan_req_int); 3223 cfg_priv->scan_req_int = NULL; 3224 kfree(cfg_priv->dcmd_buf); 3225 cfg_priv->dcmd_buf = NULL; 3226 kfree(cfg_priv->extra_buf); 3227 cfg_priv->extra_buf = NULL; 3228 kfree(cfg_priv->iscan); 3229 cfg_priv->iscan = NULL; 3230 kfree(cfg_priv->pmk_list); 3231 cfg_priv->pmk_list = NULL; 3232} 3233 3234static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_priv *cfg_priv) 3235{ 3236 cfg_priv->scan_results = kzalloc(WL_SCAN_BUF_MAX, GFP_KERNEL); 3237 if (!cfg_priv->scan_results) 3238 goto init_priv_mem_out; 3239 cfg_priv->conf = kzalloc(sizeof(*cfg_priv->conf), GFP_KERNEL); 3240 if (!cfg_priv->conf) 3241 goto init_priv_mem_out; 3242 cfg_priv->profile = kzalloc(sizeof(*cfg_priv->profile), GFP_KERNEL); 3243 if (!cfg_priv->profile) 3244 goto init_priv_mem_out; 3245 cfg_priv->bss_info = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 3246 if (!cfg_priv->bss_info) 3247 goto init_priv_mem_out; 3248 cfg_priv->scan_req_int = kzalloc(sizeof(*cfg_priv->scan_req_int), 3249 GFP_KERNEL); 3250 if (!cfg_priv->scan_req_int) 3251 goto init_priv_mem_out; 3252 cfg_priv->dcmd_buf = kzalloc(WL_DCMD_LEN_MAX, GFP_KERNEL); 3253 if (!cfg_priv->dcmd_buf) 3254 goto init_priv_mem_out; 3255 cfg_priv->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); 3256 if (!cfg_priv->extra_buf) 3257 goto init_priv_mem_out; 3258 cfg_priv->iscan = kzalloc(sizeof(*cfg_priv->iscan), GFP_KERNEL); 3259 if (!cfg_priv->iscan) 3260 goto init_priv_mem_out; 3261 cfg_priv->pmk_list = kzalloc(sizeof(*cfg_priv->pmk_list), GFP_KERNEL); 3262 if (!cfg_priv->pmk_list) 3263 goto init_priv_mem_out; 3264 3265 return 0; 3266 3267init_priv_mem_out: 3268 brcmf_deinit_priv_mem(cfg_priv); 3269 3270 return -ENOMEM; 3271} 3272 3273/* 3274* retrieve first queued event from head 3275*/ 3276 3277static struct brcmf_cfg80211_event_q *brcmf_deq_event( 3278 struct brcmf_cfg80211_priv *cfg_priv) 3279{ 3280 struct brcmf_cfg80211_event_q *e = NULL; 3281 3282 spin_lock_irq(&cfg_priv->evt_q_lock); 3283 if (!list_empty(&cfg_priv->evt_q_list)) { 3284 e = list_first_entry(&cfg_priv->evt_q_list, 3285 struct brcmf_cfg80211_event_q, evt_q_list); 3286 list_del(&e->evt_q_list); 3287 } 3288 spin_unlock_irq(&cfg_priv->evt_q_lock); 3289 3290 return e; 3291} 3292 3293/* 3294* push event to tail of the queue 3295* 3296* remark: this function may not sleep as it is called in atomic context. 3297*/ 3298 3299static s32 3300brcmf_enq_event(struct brcmf_cfg80211_priv *cfg_priv, u32 event, 3301 const struct brcmf_event_msg *msg) 3302{ 3303 struct brcmf_cfg80211_event_q *e; 3304 s32 err = 0; 3305 ulong flags; 3306 3307 e = kzalloc(sizeof(struct brcmf_cfg80211_event_q), GFP_ATOMIC); 3308 if (!e) 3309 return -ENOMEM; 3310 3311 e->etype = event; 3312 memcpy(&e->emsg, msg, sizeof(struct brcmf_event_msg)); 3313 3314 spin_lock_irqsave(&cfg_priv->evt_q_lock, flags); 3315 list_add_tail(&e->evt_q_list, &cfg_priv->evt_q_list); 3316 spin_unlock_irqrestore(&cfg_priv->evt_q_lock, flags); 3317 3318 return err; 3319} 3320 3321static void brcmf_put_event(struct brcmf_cfg80211_event_q *e) 3322{ 3323 kfree(e); 3324} 3325 3326static void brcmf_cfg80211_event_handler(struct work_struct *work) 3327{ 3328 struct brcmf_cfg80211_priv *cfg_priv = 3329 container_of(work, struct brcmf_cfg80211_priv, 3330 event_work); 3331 struct brcmf_cfg80211_event_q *e; 3332 3333 e = brcmf_deq_event(cfg_priv); 3334 if (unlikely(!e)) { 3335 WL_ERR("event queue empty...\n"); 3336 return; 3337 } 3338 3339 do { 3340 WL_INFO("event type (%d)\n", e->etype); 3341 if (cfg_priv->el.handler[e->etype]) 3342 cfg_priv->el.handler[e->etype](cfg_priv, 3343 cfg_to_ndev(cfg_priv), 3344 &e->emsg, e->edata); 3345 else 3346 WL_INFO("Unknown Event (%d): ignoring\n", e->etype); 3347 brcmf_put_event(e); 3348 } while ((e = brcmf_deq_event(cfg_priv))); 3349 3350} 3351 3352static void brcmf_init_eq(struct brcmf_cfg80211_priv *cfg_priv) 3353{ 3354 spin_lock_init(&cfg_priv->evt_q_lock); 3355 INIT_LIST_HEAD(&cfg_priv->evt_q_list); 3356} 3357 3358static void brcmf_flush_eq(struct brcmf_cfg80211_priv *cfg_priv) 3359{ 3360 struct brcmf_cfg80211_event_q *e; 3361 3362 spin_lock_irq(&cfg_priv->evt_q_lock); 3363 while (!list_empty(&cfg_priv->evt_q_list)) { 3364 e = list_first_entry(&cfg_priv->evt_q_list, 3365 struct brcmf_cfg80211_event_q, evt_q_list); 3366 list_del(&e->evt_q_list); 3367 kfree(e); 3368 } 3369 spin_unlock_irq(&cfg_priv->evt_q_lock); 3370} 3371 3372static s32 wl_init_priv(struct brcmf_cfg80211_priv *cfg_priv) 3373{ 3374 s32 err = 0; 3375 3376 cfg_priv->scan_request = NULL; 3377 cfg_priv->pwr_save = true; 3378 cfg_priv->iscan_on = true; /* iscan on & off switch. 3379 we enable iscan per default */ 3380 cfg_priv->roam_on = true; /* roam on & off switch. 3381 we enable roam per default */ 3382 3383 cfg_priv->iscan_kickstart = false; 3384 cfg_priv->active_scan = true; /* we do active scan for 3385 specific scan per default */ 3386 cfg_priv->dongle_up = false; /* dongle is not up yet */ 3387 brcmf_init_eq(cfg_priv); 3388 err = brcmf_init_priv_mem(cfg_priv); 3389 if (err) 3390 return err; 3391 INIT_WORK(&cfg_priv->event_work, brcmf_cfg80211_event_handler); 3392 brcmf_init_eloop_handler(&cfg_priv->el); 3393 mutex_init(&cfg_priv->usr_sync); 3394 err = brcmf_init_iscan(cfg_priv); 3395 if (err) 3396 return err; 3397 brcmf_init_conf(cfg_priv->conf); 3398 brcmf_init_prof(cfg_priv->profile); 3399 brcmf_link_down(cfg_priv); 3400 3401 return err; 3402} 3403 3404static void wl_deinit_priv(struct brcmf_cfg80211_priv *cfg_priv) 3405{ 3406 cancel_work_sync(&cfg_priv->event_work); 3407 cfg_priv->dongle_up = false; /* dongle down */ 3408 brcmf_flush_eq(cfg_priv); 3409 brcmf_link_down(cfg_priv); 3410 brcmf_term_iscan(cfg_priv); 3411 brcmf_deinit_priv_mem(cfg_priv); 3412} 3413 3414struct brcmf_cfg80211_dev *brcmf_cfg80211_attach(struct net_device *ndev, 3415 struct device *busdev, 3416 void *data) 3417{ 3418 struct wireless_dev *wdev; 3419 struct brcmf_cfg80211_priv *cfg_priv; 3420 struct brcmf_cfg80211_iface *ci; 3421 struct brcmf_cfg80211_dev *cfg_dev; 3422 s32 err = 0; 3423 3424 if (!ndev) { 3425 WL_ERR("ndev is invalid\n"); 3426 return NULL; 3427 } 3428 cfg_dev = kzalloc(sizeof(struct brcmf_cfg80211_dev), GFP_KERNEL); 3429 if (!cfg_dev) 3430 return NULL; 3431 3432 wdev = brcmf_alloc_wdev(sizeof(struct brcmf_cfg80211_iface), busdev); 3433 if (IS_ERR(wdev)) { 3434 kfree(cfg_dev); 3435 return NULL; 3436 } 3437 3438 wdev->iftype = brcmf_mode_to_nl80211_iftype(WL_MODE_BSS); 3439 cfg_priv = wdev_to_cfg(wdev); 3440 cfg_priv->wdev = wdev; 3441 cfg_priv->pub = data; 3442 ci = (struct brcmf_cfg80211_iface *)&cfg_priv->ci; 3443 ci->cfg_priv = cfg_priv; 3444 ndev->ieee80211_ptr = wdev; 3445 SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy)); 3446 wdev->netdev = ndev; 3447 err = wl_init_priv(cfg_priv); 3448 if (err) { 3449 WL_ERR("Failed to init iwm_priv (%d)\n", err); 3450 goto cfg80211_attach_out; 3451 } 3452 brcmf_set_drvdata(cfg_dev, ci); 3453 3454 return cfg_dev; 3455 3456cfg80211_attach_out: 3457 brcmf_free_wdev(cfg_priv); 3458 kfree(cfg_dev); 3459 return NULL; 3460} 3461 3462void brcmf_cfg80211_detach(struct brcmf_cfg80211_dev *cfg_dev) 3463{ 3464 struct brcmf_cfg80211_priv *cfg_priv; 3465 3466 cfg_priv = brcmf_priv_get(cfg_dev); 3467 3468 wl_deinit_priv(cfg_priv); 3469 brcmf_free_wdev(cfg_priv); 3470 brcmf_set_drvdata(cfg_dev, NULL); 3471 kfree(cfg_dev); 3472} 3473 3474void 3475brcmf_cfg80211_event(struct net_device *ndev, 3476 const struct brcmf_event_msg *e, void *data) 3477{ 3478 u32 event_type = be32_to_cpu(e->event_type); 3479 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); 3480 3481 if (!brcmf_enq_event(cfg_priv, event_type, e)) 3482 schedule_work(&cfg_priv->event_work); 3483} 3484 3485static s32 brcmf_dongle_mode(struct net_device *ndev, s32 iftype) 3486{ 3487 s32 infra = 0; 3488 s32 err = 0; 3489 3490 switch (iftype) { 3491 case NL80211_IFTYPE_MONITOR: 3492 case NL80211_IFTYPE_WDS: 3493 WL_ERR("type (%d) : currently we do not support this mode\n", 3494 iftype); 3495 err = -EINVAL; 3496 return err; 3497 case NL80211_IFTYPE_ADHOC: 3498 infra = 0; 3499 break; 3500 case NL80211_IFTYPE_STATION: 3501 infra = 1; 3502 break; 3503 default: 3504 err = -EINVAL; 3505 WL_ERR("invalid type (%d)\n", iftype); 3506 return err; 3507 } 3508 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &infra); 3509 if (err) { 3510 WL_ERR("WLC_SET_INFRA error (%d)\n", err); 3511 return err; 3512 } 3513 3514 return 0; 3515} 3516 3517static s32 brcmf_dongle_eventmsg(struct net_device *ndev) 3518{ 3519 /* Room for "event_msgs" + '\0' + bitvec */ 3520 s8 iovbuf[BRCMF_EVENTING_MASK_LEN + 12]; 3521 s8 eventmask[BRCMF_EVENTING_MASK_LEN]; 3522 s32 err = 0; 3523 3524 WL_TRACE("Enter\n"); 3525 3526 /* Setup event_msgs */ 3527 brcmf_c_mkiovar("event_msgs", eventmask, BRCMF_EVENTING_MASK_LEN, 3528 iovbuf, sizeof(iovbuf)); 3529 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, iovbuf, sizeof(iovbuf)); 3530 if (err) { 3531 WL_ERR("Get event_msgs error (%d)\n", err); 3532 goto dongle_eventmsg_out; 3533 } 3534 memcpy(eventmask, iovbuf, BRCMF_EVENTING_MASK_LEN); 3535 3536 setbit(eventmask, BRCMF_E_SET_SSID); 3537 setbit(eventmask, BRCMF_E_ROAM); 3538 setbit(eventmask, BRCMF_E_PRUNE); 3539 setbit(eventmask, BRCMF_E_AUTH); 3540 setbit(eventmask, BRCMF_E_REASSOC); 3541 setbit(eventmask, BRCMF_E_REASSOC_IND); 3542 setbit(eventmask, BRCMF_E_DEAUTH_IND); 3543 setbit(eventmask, BRCMF_E_DISASSOC_IND); 3544 setbit(eventmask, BRCMF_E_DISASSOC); 3545 setbit(eventmask, BRCMF_E_JOIN); 3546 setbit(eventmask, BRCMF_E_ASSOC_IND); 3547 setbit(eventmask, BRCMF_E_PSK_SUP); 3548 setbit(eventmask, BRCMF_E_LINK); 3549 setbit(eventmask, BRCMF_E_NDIS_LINK); 3550 setbit(eventmask, BRCMF_E_MIC_ERROR); 3551 setbit(eventmask, BRCMF_E_PMKID_CACHE); 3552 setbit(eventmask, BRCMF_E_TXFAIL); 3553 setbit(eventmask, BRCMF_E_JOIN_START); 3554 setbit(eventmask, BRCMF_E_SCAN_COMPLETE); 3555 3556 brcmf_c_mkiovar("event_msgs", eventmask, BRCMF_EVENTING_MASK_LEN, 3557 iovbuf, sizeof(iovbuf)); 3558 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, iovbuf, sizeof(iovbuf)); 3559 if (err) { 3560 WL_ERR("Set event_msgs error (%d)\n", err); 3561 goto dongle_eventmsg_out; 3562 } 3563 3564dongle_eventmsg_out: 3565 WL_TRACE("Exit\n"); 3566 return err; 3567} 3568 3569static s32 3570brcmf_dongle_roam(struct net_device *ndev, u32 roamvar, u32 bcn_timeout) 3571{ 3572 s8 iovbuf[32]; 3573 s32 err = 0; 3574 __le32 roamtrigger[2]; 3575 __le32 roam_delta[2]; 3576 __le32 bcn_to_le; 3577 __le32 roamvar_le; 3578 3579 /* 3580 * Setup timeout if Beacons are lost and roam is 3581 * off to report link down 3582 */ 3583 if (roamvar) { 3584 bcn_to_le = cpu_to_le32(bcn_timeout); 3585 brcmf_c_mkiovar("bcn_timeout", (char *)&bcn_to_le, 3586 sizeof(bcn_to_le), iovbuf, sizeof(iovbuf)); 3587 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, 3588 iovbuf, sizeof(iovbuf)); 3589 if (err) { 3590 WL_ERR("bcn_timeout error (%d)\n", err); 3591 goto dongle_rom_out; 3592 } 3593 } 3594 3595 /* 3596 * Enable/Disable built-in roaming to allow supplicant 3597 * to take care of roaming 3598 */ 3599 WL_INFO("Internal Roaming = %s\n", roamvar ? "Off" : "On"); 3600 roamvar_le = cpu_to_le32(roamvar); 3601 brcmf_c_mkiovar("roam_off", (char *)&roamvar_le, 3602 sizeof(roamvar_le), iovbuf, sizeof(iovbuf)); 3603 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, iovbuf, sizeof(iovbuf)); 3604 if (err) { 3605 WL_ERR("roam_off error (%d)\n", err); 3606 goto dongle_rom_out; 3607 } 3608 3609 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL); 3610 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL); 3611 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_ROAM_TRIGGER, 3612 (void *)roamtrigger, sizeof(roamtrigger)); 3613 if (err) { 3614 WL_ERR("WLC_SET_ROAM_TRIGGER error (%d)\n", err); 3615 goto dongle_rom_out; 3616 } 3617 3618 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA); 3619 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL); 3620 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_ROAM_DELTA, 3621 (void *)roam_delta, sizeof(roam_delta)); 3622 if (err) { 3623 WL_ERR("WLC_SET_ROAM_DELTA error (%d)\n", err); 3624 goto dongle_rom_out; 3625 } 3626 3627dongle_rom_out: 3628 return err; 3629} 3630 3631static s32 3632brcmf_dongle_scantime(struct net_device *ndev, s32 scan_assoc_time, 3633 s32 scan_unassoc_time, s32 scan_passive_time) 3634{ 3635 s32 err = 0; 3636 __le32 scan_assoc_tm_le = cpu_to_le32(scan_assoc_time); 3637 __le32 scan_unassoc_tm_le = cpu_to_le32(scan_unassoc_time); 3638 __le32 scan_passive_tm_le = cpu_to_le32(scan_passive_time); 3639 3640 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SCAN_CHANNEL_TIME, 3641 &scan_assoc_tm_le, sizeof(scan_assoc_tm_le)); 3642 if (err) { 3643 if (err == -EOPNOTSUPP) 3644 WL_INFO("Scan assoc time is not supported\n"); 3645 else 3646 WL_ERR("Scan assoc time error (%d)\n", err); 3647 goto dongle_scantime_out; 3648 } 3649 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SCAN_UNASSOC_TIME, 3650 &scan_unassoc_tm_le, sizeof(scan_unassoc_tm_le)); 3651 if (err) { 3652 if (err == -EOPNOTSUPP) 3653 WL_INFO("Scan unassoc time is not supported\n"); 3654 else 3655 WL_ERR("Scan unassoc time error (%d)\n", err); 3656 goto dongle_scantime_out; 3657 } 3658 3659 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SCAN_PASSIVE_TIME, 3660 &scan_passive_tm_le, sizeof(scan_passive_tm_le)); 3661 if (err) { 3662 if (err == -EOPNOTSUPP) 3663 WL_INFO("Scan passive time is not supported\n"); 3664 else 3665 WL_ERR("Scan passive time error (%d)\n", err); 3666 goto dongle_scantime_out; 3667 } 3668 3669dongle_scantime_out: 3670 return err; 3671} 3672 3673static s32 wl_update_wiphybands(struct brcmf_cfg80211_priv *cfg_priv) 3674{ 3675 struct wiphy *wiphy; 3676 s32 phy_list; 3677 s8 phy; 3678 s32 err = 0; 3679 3680 err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCM_GET_PHYLIST, 3681 &phy_list, sizeof(phy_list)); 3682 if (err) { 3683 WL_ERR("error (%d)\n", err); 3684 return err; 3685 } 3686 3687 phy = ((char *)&phy_list)[1]; 3688 WL_INFO("%c phy\n", phy); 3689 if (phy == 'n' || phy == 'a') { 3690 wiphy = cfg_to_wiphy(cfg_priv); 3691 wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_n; 3692 } 3693 3694 return err; 3695} 3696 3697static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_priv *cfg_priv) 3698{ 3699 return wl_update_wiphybands(cfg_priv); 3700} 3701 3702static s32 brcmf_config_dongle(struct brcmf_cfg80211_priv *cfg_priv) 3703{ 3704 struct net_device *ndev; 3705 struct wireless_dev *wdev; 3706 s32 power_mode; 3707 s32 err = 0; 3708 3709 if (cfg_priv->dongle_up) 3710 return err; 3711 3712 ndev = cfg_to_ndev(cfg_priv); 3713 wdev = ndev->ieee80211_ptr; 3714 3715 brcmf_dongle_scantime(ndev, WL_SCAN_CHANNEL_TIME, 3716 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME); 3717 3718 err = brcmf_dongle_eventmsg(ndev); 3719 if (err) 3720 goto default_conf_out; 3721 3722 power_mode = cfg_priv->pwr_save ? PM_FAST : PM_OFF; 3723 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_PM, &power_mode); 3724 if (err) 3725 goto default_conf_out; 3726 WL_INFO("power save set to %s\n", 3727 (power_mode ? "enabled" : "disabled")); 3728 3729 err = brcmf_dongle_roam(ndev, (cfg_priv->roam_on ? 0 : 1), 3730 WL_BEACON_TIMEOUT); 3731 if (err) 3732 goto default_conf_out; 3733 err = brcmf_dongle_mode(ndev, wdev->iftype); 3734 if (err && err != -EINPROGRESS) 3735 goto default_conf_out; 3736 err = brcmf_dongle_probecap(cfg_priv); 3737 if (err) 3738 goto default_conf_out; 3739 3740 /* -EINPROGRESS: Call commit handler */ 3741 3742default_conf_out: 3743 3744 cfg_priv->dongle_up = true; 3745 3746 return err; 3747 3748} 3749 3750static int brcmf_debugfs_add_netdev_params(struct brcmf_cfg80211_priv *cfg_priv) 3751{ 3752 char buf[10+IFNAMSIZ]; 3753 struct dentry *fd; 3754 s32 err = 0; 3755 3756 sprintf(buf, "netdev:%s", cfg_to_ndev(cfg_priv)->name); 3757 cfg_priv->debugfsdir = debugfs_create_dir(buf, 3758 cfg_to_wiphy(cfg_priv)->debugfsdir); 3759 3760 fd = debugfs_create_u16("beacon_int", S_IRUGO, cfg_priv->debugfsdir, 3761 (u16 *)&cfg_priv->profile->beacon_interval); 3762 if (!fd) { 3763 err = -ENOMEM; 3764 goto err_out; 3765 } 3766 3767 fd = debugfs_create_u8("dtim_period", S_IRUGO, cfg_priv->debugfsdir, 3768 (u8 *)&cfg_priv->profile->dtim_period); 3769 if (!fd) { 3770 err = -ENOMEM; 3771 goto err_out; 3772 } 3773 3774err_out: 3775 return err; 3776} 3777 3778static void brcmf_debugfs_remove_netdev(struct brcmf_cfg80211_priv *cfg_priv) 3779{ 3780 debugfs_remove_recursive(cfg_priv->debugfsdir); 3781 cfg_priv->debugfsdir = NULL; 3782} 3783 3784static s32 __brcmf_cfg80211_up(struct brcmf_cfg80211_priv *cfg_priv) 3785{ 3786 s32 err = 0; 3787 3788 set_bit(WL_STATUS_READY, &cfg_priv->status); 3789 3790 brcmf_debugfs_add_netdev_params(cfg_priv); 3791 3792 err = brcmf_config_dongle(cfg_priv); 3793 if (err) 3794 return err; 3795 3796 brcmf_invoke_iscan(cfg_priv); 3797 3798 return err; 3799} 3800 3801static s32 __brcmf_cfg80211_down(struct brcmf_cfg80211_priv *cfg_priv) 3802{ 3803 /* 3804 * While going down, if associated with AP disassociate 3805 * from AP to save power 3806 */ 3807 if ((test_bit(WL_STATUS_CONNECTED, &cfg_priv->status) || 3808 test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) && 3809 test_bit(WL_STATUS_READY, &cfg_priv->status)) { 3810 WL_INFO("Disassociating from AP"); 3811 brcmf_link_down(cfg_priv); 3812 3813 /* Make sure WPA_Supplicant receives all the event 3814 generated due to DISASSOC call to the fw to keep 3815 the state fw and WPA_Supplicant state consistent 3816 */ 3817 brcmf_delay(500); 3818 } 3819 3820 set_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status); 3821 brcmf_term_iscan(cfg_priv); 3822 if (cfg_priv->scan_request) { 3823 cfg80211_scan_done(cfg_priv->scan_request, true); 3824 /* May need to perform this to cover rmmod */ 3825 /* wl_set_mpc(cfg_to_ndev(wl), 1); */ 3826 cfg_priv->scan_request = NULL; 3827 } 3828 clear_bit(WL_STATUS_READY, &cfg_priv->status); 3829 clear_bit(WL_STATUS_SCANNING, &cfg_priv->status); 3830 clear_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status); 3831 3832 brcmf_debugfs_remove_netdev(cfg_priv); 3833 3834 return 0; 3835} 3836 3837s32 brcmf_cfg80211_up(struct brcmf_cfg80211_dev *cfg_dev) 3838{ 3839 struct brcmf_cfg80211_priv *cfg_priv; 3840 s32 err = 0; 3841 3842 cfg_priv = brcmf_priv_get(cfg_dev); 3843 mutex_lock(&cfg_priv->usr_sync); 3844 err = __brcmf_cfg80211_up(cfg_priv); 3845 mutex_unlock(&cfg_priv->usr_sync); 3846 3847 return err; 3848} 3849 3850s32 brcmf_cfg80211_down(struct brcmf_cfg80211_dev *cfg_dev) 3851{ 3852 struct brcmf_cfg80211_priv *cfg_priv; 3853 s32 err = 0; 3854 3855 cfg_priv = brcmf_priv_get(cfg_dev); 3856 mutex_lock(&cfg_priv->usr_sync); 3857 err = __brcmf_cfg80211_down(cfg_priv); 3858 mutex_unlock(&cfg_priv->usr_sync); 3859 3860 return err; 3861} 3862 3863static __used s32 brcmf_add_ie(struct brcmf_cfg80211_priv *cfg_priv, 3864 u8 t, u8 l, u8 *v) 3865{ 3866 struct brcmf_cfg80211_ie *ie = &cfg_priv->ie; 3867 s32 err = 0; 3868 3869 if (ie->offset + l + 2 > WL_TLV_INFO_MAX) { 3870 WL_ERR("ei crosses buffer boundary\n"); 3871 return -ENOSPC; 3872 } 3873 ie->buf[ie->offset] = t; 3874 ie->buf[ie->offset + 1] = l; 3875 memcpy(&ie->buf[ie->offset + 2], v, l); 3876 ie->offset += l + 2; 3877 3878 return err; 3879} 3880