diff options
Diffstat (limited to 'kernel/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c')
| -rw-r--r-- | kernel/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c | 6163 |
1 files changed, 6163 insertions, 0 deletions
diff --git a/kernel/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/kernel/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c new file mode 100644 index 000000000..8a15ebbce --- /dev/null +++ b/kernel/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c @@ -0,0 +1,6163 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */ + +#include <linux/kernel.h> +#include <linux/etherdevice.h> +#include <linux/module.h> +#include <linux/vmalloc.h> +#include <net/cfg80211.h> +#include <net/netlink.h> + +#include <brcmu_utils.h> +#include <defs.h> +#include <brcmu_wifi.h> +#include "core.h" +#include "debug.h" +#include "tracepoint.h" +#include "fwil_types.h" +#include "p2p.h" +#include "btcoex.h" +#include "cfg80211.h" +#include "feature.h" +#include "fwil.h" +#include "proto.h" +#include "vendor.h" +#include "bus.h" +#include "common.h" + +#define BRCMF_SCAN_IE_LEN_MAX 2048 +#define BRCMF_PNO_VERSION 2 +#define BRCMF_PNO_TIME 30 +#define BRCMF_PNO_REPEAT 4 +#define BRCMF_PNO_FREQ_EXPO_MAX 3 +#define BRCMF_PNO_MAX_PFN_COUNT 16 +#define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT 6 +#define BRCMF_PNO_HIDDEN_BIT 2 +#define BRCMF_PNO_WPA_AUTH_ANY 0xFFFFFFFF +#define BRCMF_PNO_SCAN_COMPLETE 1 +#define BRCMF_PNO_SCAN_INCOMPLETE 0 + +#define BRCMF_IFACE_MAX_CNT 3 + +#define WPA_OUI "\x00\x50\xF2" /* WPA OUI */ +#define WPA_OUI_TYPE 1 +#define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */ +#define WME_OUI_TYPE 2 +#define WPS_OUI_TYPE 4 + +#define VS_IE_FIXED_HDR_LEN 6 +#define WPA_IE_VERSION_LEN 2 +#define WPA_IE_MIN_OUI_LEN 4 +#define WPA_IE_SUITE_COUNT_LEN 2 + +#define WPA_CIPHER_NONE 0 /* None */ +#define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */ +#define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */ +#define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */ +#define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */ + +#define RSN_AKM_NONE 0 /* None (IBSS) */ +#define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */ +#define RSN_AKM_PSK 2 /* Pre-shared Key */ +#define RSN_CAP_LEN 2 /* Length of RSN capabilities */ +#define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C + +#define VNDR_IE_CMD_LEN 4 /* length of the set command + * string :"add", "del" (+ NUL) + */ +#define VNDR_IE_COUNT_OFFSET 4 +#define VNDR_IE_PKTFLAG_OFFSET 8 +#define VNDR_IE_VSIE_OFFSET 12 +#define VNDR_IE_HDR_SIZE 12 +#define VNDR_IE_PARSE_LIMIT 5 + +#define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */ +#define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */ + +#define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320 +#define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400 +#define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20 + +#define BRCMF_ASSOC_PARAMS_FIXED_SIZE \ + (sizeof(struct brcmf_assoc_params_le) - sizeof(u16)) + +static bool check_vif_up(struct brcmf_cfg80211_vif *vif) +{ + if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) { + brcmf_dbg(INFO, "device is not ready : status (%lu)\n", + vif->sme_state); + return false; + } + return true; +} + +#define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2) +#define RATETAB_ENT(_rateid, _flags) \ + { \ + .bitrate = RATE_TO_BASE100KBPS(_rateid), \ + .hw_value = (_rateid), \ + .flags = (_flags), \ + } + +static struct ieee80211_rate __wl_rates[] = { + RATETAB_ENT(BRCM_RATE_1M, 0), + RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE), + RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE), + RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE), + RATETAB_ENT(BRCM_RATE_6M, 0), + RATETAB_ENT(BRCM_RATE_9M, 0), + RATETAB_ENT(BRCM_RATE_12M, 0), + RATETAB_ENT(BRCM_RATE_18M, 0), + RATETAB_ENT(BRCM_RATE_24M, 0), + RATETAB_ENT(BRCM_RATE_36M, 0), + RATETAB_ENT(BRCM_RATE_48M, 0), + RATETAB_ENT(BRCM_RATE_54M, 0), +}; + +#define wl_a_rates (__wl_rates + 4) +#define wl_a_rates_size 8 +#define wl_g_rates (__wl_rates + 0) +#define wl_g_rates_size 12 + +/* Band templates duplicated per wiphy. The channel info + * is filled in after querying the device. + */ +static const struct ieee80211_supported_band __wl_band_2ghz = { + .band = IEEE80211_BAND_2GHZ, + .bitrates = wl_g_rates, + .n_bitrates = wl_g_rates_size, +}; + +static const struct ieee80211_supported_band __wl_band_5ghz_a = { + .band = IEEE80211_BAND_5GHZ, + .bitrates = wl_a_rates, + .n_bitrates = wl_a_rates_size, +}; + +/* This is to override regulatory domains defined in cfg80211 module (reg.c) + * By default world regulatory domain defined in reg.c puts the flags + * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165). + * With respect to these flags, wpa_supplicant doesn't * start p2p + * operations on 5GHz channels. All the changes in world regulatory + * domain are to be done here. + */ +static const struct ieee80211_regdomain brcmf_regdom = { + .n_reg_rules = 4, + .alpha2 = "99", + .reg_rules = { + /* IEEE 802.11b/g, channels 1..11 */ + REG_RULE(2412-10, 2472+10, 40, 6, 20, 0), + /* If any */ + /* IEEE 802.11 channel 14 - Only JP enables + * this and for 802.11b only + */ + REG_RULE(2484-10, 2484+10, 20, 6, 20, 0), + /* IEEE 802.11a, channel 36..64 */ + REG_RULE(5150-10, 5350+10, 80, 6, 20, 0), + /* IEEE 802.11a, channel 100..165 */ + REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), } +}; + +static const u32 __wl_cipher_suites[] = { + WLAN_CIPHER_SUITE_WEP40, + WLAN_CIPHER_SUITE_WEP104, + WLAN_CIPHER_SUITE_TKIP, + WLAN_CIPHER_SUITE_CCMP, + WLAN_CIPHER_SUITE_AES_CMAC, +}; + +/* Vendor specific ie. id = 221, oui and type defines exact ie */ +struct brcmf_vs_tlv { + u8 id; + u8 len; + u8 oui[3]; + u8 oui_type; +}; + +struct parsed_vndr_ie_info { + u8 *ie_ptr; + u32 ie_len; /* total length including id & length field */ + struct brcmf_vs_tlv vndrie; +}; + +struct parsed_vndr_ies { + u32 count; + struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT]; +}; + +static int brcmf_roamoff; +module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR); +MODULE_PARM_DESC(roamoff, "do not use internal roaming engine"); + +/* Quarter dBm units to mW + * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153 + * Table is offset so the last entry is largest mW value that fits in + * a u16. + */ + +#define QDBM_OFFSET 153 /* Offset for first entry */ +#define QDBM_TABLE_LEN 40 /* Table size */ + +/* Smallest mW value that will round up to the first table entry, QDBM_OFFSET. + * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2 + */ +#define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */ + +/* Largest mW value that will round down to the last table entry, + * QDBM_OFFSET + QDBM_TABLE_LEN-1. + * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) + + * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2. + */ +#define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */ + +static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = { +/* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */ +/* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000, +/* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849, +/* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119, +/* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811, +/* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096 +}; + +static u16 brcmf_qdbm_to_mw(u8 qdbm) +{ + uint factor = 1; + int idx = qdbm - QDBM_OFFSET; + + if (idx >= QDBM_TABLE_LEN) + /* clamp to max u16 mW value */ + return 0xFFFF; + + /* scale the qdBm index up to the range of the table 0-40 + * where an offset of 40 qdBm equals a factor of 10 mW. + */ + while (idx < 0) { + idx += 40; + factor *= 10; + } + + /* return the mW value scaled down to the correct factor of 10, + * adding in factor/2 to get proper rounding. + */ + return (nqdBm_to_mW_map[idx] + factor / 2) / factor; +} + +static u8 brcmf_mw_to_qdbm(u16 mw) +{ + u8 qdbm; + int offset; + uint mw_uint = mw; + uint boundary; + + /* handle boundary case */ + if (mw_uint <= 1) + return 0; + + offset = QDBM_OFFSET; + + /* move mw into the range of the table */ + while (mw_uint < QDBM_TABLE_LOW_BOUND) { + mw_uint *= 10; + offset -= 40; + } + + for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) { + boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] - + nqdBm_to_mW_map[qdbm]) / 2; + if (mw_uint < boundary) + break; + } + + qdbm += (u8) offset; + + return qdbm; +} + +static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf, + struct cfg80211_chan_def *ch) +{ + struct brcmu_chan ch_inf; + s32 primary_offset; + + brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n", + ch->chan->center_freq, ch->center_freq1, ch->width); + ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1); + primary_offset = ch->center_freq1 - ch->chan->center_freq; + switch (ch->width) { + case NL80211_CHAN_WIDTH_20: + case NL80211_CHAN_WIDTH_20_NOHT: + ch_inf.bw = BRCMU_CHAN_BW_20; + WARN_ON(primary_offset != 0); + break; + case NL80211_CHAN_WIDTH_40: + ch_inf.bw = BRCMU_CHAN_BW_40; + if (primary_offset < 0) + ch_inf.sb = BRCMU_CHAN_SB_U; + else + ch_inf.sb = BRCMU_CHAN_SB_L; + break; + case NL80211_CHAN_WIDTH_80: + ch_inf.bw = BRCMU_CHAN_BW_80; + if (primary_offset < 0) { + if (primary_offset < -CH_10MHZ_APART) + ch_inf.sb = BRCMU_CHAN_SB_UU; + else + ch_inf.sb = BRCMU_CHAN_SB_UL; + } else { + if (primary_offset > CH_10MHZ_APART) + ch_inf.sb = BRCMU_CHAN_SB_LL; + else + ch_inf.sb = BRCMU_CHAN_SB_LU; + } + break; + case NL80211_CHAN_WIDTH_80P80: + case NL80211_CHAN_WIDTH_160: + case NL80211_CHAN_WIDTH_5: + case NL80211_CHAN_WIDTH_10: + default: + WARN_ON_ONCE(1); + } + switch (ch->chan->band) { + case IEEE80211_BAND_2GHZ: + ch_inf.band = BRCMU_CHAN_BAND_2G; + break; + case IEEE80211_BAND_5GHZ: + ch_inf.band = BRCMU_CHAN_BAND_5G; + break; + case IEEE80211_BAND_60GHZ: + default: + WARN_ON_ONCE(1); + } + d11inf->encchspec(&ch_inf); + + return ch_inf.chspec; +} + +u16 channel_to_chanspec(struct brcmu_d11inf *d11inf, + struct ieee80211_channel *ch) +{ + struct brcmu_chan ch_inf; + + ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq); + ch_inf.bw = BRCMU_CHAN_BW_20; + d11inf->encchspec(&ch_inf); + + return ch_inf.chspec; +} + +/* Traverse a string of 1-byte tag/1-byte length/variable-length value + * triples, returning a pointer to the substring whose first element + * matches tag + */ +const struct brcmf_tlv * +brcmf_parse_tlvs(const void *buf, int buflen, uint key) +{ + const struct brcmf_tlv *elt = buf; + int totlen = buflen; + + /* find tagged parameter */ + while (totlen >= TLV_HDR_LEN) { + int len = elt->len; + + /* validate remaining totlen */ + if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN))) + return elt; + + elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN)); + totlen -= (len + TLV_HDR_LEN); + } + + return NULL; +} + +/* Is any of the tlvs the expected entry? If + * not update the tlvs buffer pointer/length. + */ +static bool +brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len, + const u8 *oui, u32 oui_len, u8 type) +{ + /* If the contents match the OUI and the type */ + if (ie[TLV_LEN_OFF] >= oui_len + 1 && + !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) && + type == ie[TLV_BODY_OFF + oui_len]) { + return true; + } + + if (tlvs == NULL) + return false; + /* point to the next ie */ + ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN; + /* calculate the length of the rest of the buffer */ + *tlvs_len -= (int)(ie - *tlvs); + /* update the pointer to the start of the buffer */ + *tlvs = ie; + + return false; +} + +static struct brcmf_vs_tlv * +brcmf_find_wpaie(const u8 *parse, u32 len) +{ + const struct brcmf_tlv *ie; + + while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) { + if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len, + WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE)) + return (struct brcmf_vs_tlv *)ie; + } + return NULL; +} + +static struct brcmf_vs_tlv * +brcmf_find_wpsie(const u8 *parse, u32 len) +{ + const struct brcmf_tlv *ie; + + while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) { + if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len, + WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE)) + return (struct brcmf_vs_tlv *)ie; + } + return NULL; +} + + +static void convert_key_from_CPU(struct brcmf_wsec_key *key, + struct brcmf_wsec_key_le *key_le) +{ + key_le->index = cpu_to_le32(key->index); + key_le->len = cpu_to_le32(key->len); + key_le->algo = cpu_to_le32(key->algo); + key_le->flags = cpu_to_le32(key->flags); + key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi); + key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo); + key_le->iv_initialized = cpu_to_le32(key->iv_initialized); + memcpy(key_le->data, key->data, sizeof(key->data)); + memcpy(key_le->ea, key->ea, sizeof(key->ea)); +} + +static int +send_key_to_dongle(struct brcmf_if *ifp, struct brcmf_wsec_key *key) +{ + int err; + struct brcmf_wsec_key_le key_le; + + convert_key_from_CPU(key, &key_le); + + brcmf_netdev_wait_pend8021x(ifp); + + err = brcmf_fil_bsscfg_data_set(ifp, "wsec_key", &key_le, + sizeof(key_le)); + + if (err) + brcmf_err("wsec_key error (%d)\n", err); + return err; +} + +static s32 +brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable) +{ + s32 err; + u32 mode; + + if (enable) + mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY; + else + mode = 0; + + /* Try to set and enable ARP offload feature, this may fail, then it */ + /* is simply not supported and err 0 will be returned */ + err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode); + if (err) { + brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n", + mode, err); + err = 0; + } else { + err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable); + if (err) { + brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n", + enable, err); + err = 0; + } else + brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n", + enable, mode); + } + + return err; +} + +static void +brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev) +{ + struct brcmf_cfg80211_vif *vif; + struct brcmf_if *ifp; + + vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); + ifp = vif->ifp; + + if ((wdev->iftype == NL80211_IFTYPE_ADHOC) || + (wdev->iftype == NL80211_IFTYPE_AP) || + (wdev->iftype == NL80211_IFTYPE_P2P_GO)) + brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx, + ADDR_DIRECT); + else + brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx, + ADDR_INDIRECT); +} + +static int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp) +{ + struct brcmf_mbss_ssid_le mbss_ssid_le; + int bsscfgidx; + int err; + + memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le)); + bsscfgidx = brcmf_get_next_free_bsscfgidx(ifp->drvr); + if (bsscfgidx < 0) + return bsscfgidx; + + mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx); + mbss_ssid_le.SSID_len = cpu_to_le32(5); + sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx); + + err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le, + sizeof(mbss_ssid_le)); + if (err < 0) + brcmf_err("setting ssid failed %d\n", err); + + return err; +} + +/** + * brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS + * + * @wiphy: wiphy device of new interface. + * @name: name of the new interface. + * @flags: not used. + * @params: contains mac address for AP device. + */ +static +struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name, + u32 *flags, struct vif_params *params) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + struct brcmf_cfg80211_vif *vif; + int err; + + if (brcmf_cfg80211_vif_event_armed(cfg)) + return ERR_PTR(-EBUSY); + + brcmf_dbg(INFO, "Adding vif \"%s\"\n", name); + + vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP, false); + if (IS_ERR(vif)) + return (struct wireless_dev *)vif; + + brcmf_cfg80211_arm_vif_event(cfg, vif); + + err = brcmf_cfg80211_request_ap_if(ifp); + if (err) { + brcmf_cfg80211_arm_vif_event(cfg, NULL); + goto fail; + } + + /* wait for firmware event */ + err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD, + msecs_to_jiffies(1500)); + brcmf_cfg80211_arm_vif_event(cfg, NULL); + if (!err) { + brcmf_err("timeout occurred\n"); + err = -EIO; + goto fail; + } + + /* interface created in firmware */ + ifp = vif->ifp; + if (!ifp) { + brcmf_err("no if pointer provided\n"); + err = -ENOENT; + goto fail; + } + + strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1); + err = brcmf_net_attach(ifp, true); + if (err) { + brcmf_err("Registering netdevice failed\n"); + goto fail; + } + + return &ifp->vif->wdev; + +fail: + brcmf_free_vif(vif); + return ERR_PTR(err); +} + +static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif) +{ + enum nl80211_iftype iftype; + + iftype = vif->wdev.iftype; + return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO; +} + +static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif) +{ + return vif->wdev.iftype == NL80211_IFTYPE_ADHOC; +} + +static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy, + const char *name, + unsigned char name_assign_type, + enum nl80211_iftype type, + u32 *flags, + struct vif_params *params) +{ + struct wireless_dev *wdev; + + brcmf_dbg(TRACE, "enter: %s type %d\n", name, type); + switch (type) { + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_WDS: + case NL80211_IFTYPE_MONITOR: + case NL80211_IFTYPE_MESH_POINT: + return ERR_PTR(-EOPNOTSUPP); + case NL80211_IFTYPE_AP: + wdev = brcmf_ap_add_vif(wiphy, name, flags, params); + if (!IS_ERR(wdev)) + brcmf_cfg80211_update_proto_addr_mode(wdev); + return wdev; + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + case NL80211_IFTYPE_P2P_DEVICE: + wdev = brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, flags, params); + if (!IS_ERR(wdev)) + brcmf_cfg80211_update_proto_addr_mode(wdev); + return wdev; + case NL80211_IFTYPE_UNSPECIFIED: + default: + return ERR_PTR(-EINVAL); + } +} + +static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc) +{ + if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC)) + brcmf_set_mpc(ifp, mpc); +} + +void brcmf_set_mpc(struct brcmf_if *ifp, int mpc) +{ + s32 err = 0; + + if (check_vif_up(ifp->vif)) { + err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc); + if (err) { + brcmf_err("fail to set mpc\n"); + return; + } + brcmf_dbg(INFO, "MPC : %d\n", mpc); + } +} + +s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg, + struct brcmf_if *ifp, bool aborted, + bool fw_abort) +{ + struct brcmf_scan_params_le params_le; + struct cfg80211_scan_request *scan_request; + s32 err = 0; + + brcmf_dbg(SCAN, "Enter\n"); + + /* clear scan request, because the FW abort can cause a second call */ + /* to this functon and might cause a double cfg80211_scan_done */ + scan_request = cfg->scan_request; + cfg->scan_request = NULL; + + if (timer_pending(&cfg->escan_timeout)) + del_timer_sync(&cfg->escan_timeout); + + if (fw_abort) { + /* Do a scan abort to stop the driver's scan engine */ + brcmf_dbg(SCAN, "ABORT scan in firmware\n"); + memset(¶ms_le, 0, sizeof(params_le)); + eth_broadcast_addr(params_le.bssid); + params_le.bss_type = DOT11_BSSTYPE_ANY; + params_le.scan_type = 0; + params_le.channel_num = cpu_to_le32(1); + params_le.nprobes = cpu_to_le32(1); + params_le.active_time = cpu_to_le32(-1); + params_le.passive_time = cpu_to_le32(-1); + params_le.home_time = cpu_to_le32(-1); + /* Scan is aborted by setting channel_list[0] to -1 */ + params_le.channel_list[0] = cpu_to_le16(-1); + /* E-Scan (or anyother type) can be aborted by SCAN */ + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN, + ¶ms_le, sizeof(params_le)); + if (err) + brcmf_err("Scan abort failed\n"); + } + + brcmf_scan_config_mpc(ifp, 1); + + /* + * e-scan can be initiated by scheduled scan + * which takes precedence. + */ + if (cfg->sched_escan) { + brcmf_dbg(SCAN, "scheduled scan completed\n"); + cfg->sched_escan = false; + if (!aborted) + cfg80211_sched_scan_results(cfg_to_wiphy(cfg)); + } else if (scan_request) { + brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n", + aborted ? "Aborted" : "Done"); + cfg80211_scan_done(scan_request, aborted); + } + if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) + brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n"); + + return err; +} + +static +int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) +{ + struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct net_device *ndev = wdev->netdev; + + /* vif event pending in firmware */ + if (brcmf_cfg80211_vif_event_armed(cfg)) + return -EBUSY; + + if (ndev) { + if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) && + cfg->escan_info.ifp == netdev_priv(ndev)) + brcmf_notify_escan_complete(cfg, netdev_priv(ndev), + true, true); + + brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1); + } + + switch (wdev->iftype) { + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_WDS: + case NL80211_IFTYPE_MONITOR: + case NL80211_IFTYPE_MESH_POINT: + return -EOPNOTSUPP; + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + case NL80211_IFTYPE_P2P_DEVICE: + return brcmf_p2p_del_vif(wiphy, wdev); + case NL80211_IFTYPE_UNSPECIFIED: + default: + return -EINVAL; + } + return -EOPNOTSUPP; +} + +static s32 +brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev, + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) +{ + struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_vif *vif = ifp->vif; + s32 infra = 0; + s32 ap = 0; + s32 err = 0; + + brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type); + + switch (type) { + case NL80211_IFTYPE_MONITOR: + case NL80211_IFTYPE_WDS: + brcmf_err("type (%d) : currently we do not support this type\n", + type); + return -EOPNOTSUPP; + case NL80211_IFTYPE_ADHOC: + infra = 0; + break; + case NL80211_IFTYPE_STATION: + /* Ignore change for p2p IF. Unclear why supplicant does this */ + if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) || + (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) { + brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n"); + /* WAR: It is unexpected to get a change of VIF for P2P + * IF, but it happens. The request can not be handled + * but returning EPERM causes a crash. Returning 0 + * without setting ieee80211_ptr->iftype causes trace + * (WARN_ON) but it works with wpa_supplicant + */ + return 0; + } + infra = 1; + break; + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_GO: + ap = 1; + break; + default: + err = -EINVAL; + goto done; + } + + if (ap) { + if (type == NL80211_IFTYPE_P2P_GO) { + brcmf_dbg(INFO, "IF Type = P2P GO\n"); + err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO); + } + if (!err) { + set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state); + brcmf_dbg(INFO, "IF Type = AP\n"); + } + } else { + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra); + if (err) { + brcmf_err("WLC_SET_INFRA error (%d)\n", err); + err = -EAGAIN; + goto done; + } + brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ? + "Adhoc" : "Infra"); + } + ndev->ieee80211_ptr->iftype = type; + + brcmf_cfg80211_update_proto_addr_mode(&vif->wdev); + +done: + brcmf_dbg(TRACE, "Exit\n"); + + return err; +} + +static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg, + struct brcmf_scan_params_le *params_le, + struct cfg80211_scan_request *request) +{ + u32 n_ssids; + u32 n_channels; + s32 i; + s32 offset; + u16 chanspec; + char *ptr; + struct brcmf_ssid_le ssid_le; + + eth_broadcast_addr(params_le->bssid); + params_le->bss_type = DOT11_BSSTYPE_ANY; + params_le->scan_type = 0; + params_le->channel_num = 0; + params_le->nprobes = cpu_to_le32(-1); + params_le->active_time = cpu_to_le32(-1); + params_le->passive_time = cpu_to_le32(-1); + params_le->home_time = cpu_to_le32(-1); + memset(¶ms_le->ssid_le, 0, sizeof(params_le->ssid_le)); + + /* if request is null exit so it will be all channel broadcast scan */ + if (!request) + return; + + n_ssids = request->n_ssids; + n_channels = request->n_channels; + /* Copy channel array if applicable */ + brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n", + n_channels); + if (n_channels > 0) { + for (i = 0; i < n_channels; i++) { + chanspec = channel_to_chanspec(&cfg->d11inf, + request->channels[i]); + brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n", + request->channels[i]->hw_value, chanspec); + params_le->channel_list[i] = cpu_to_le16(chanspec); + } + } else { + brcmf_dbg(SCAN, "Scanning all channels\n"); + } + /* Copy ssid array if applicable */ + brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids); + if (n_ssids > 0) { + offset = offsetof(struct brcmf_scan_params_le, channel_list) + + n_channels * sizeof(u16); + offset = roundup(offset, sizeof(u32)); + ptr = (char *)params_le + offset; + for (i = 0; i < n_ssids; i++) { + memset(&ssid_le, 0, sizeof(ssid_le)); + ssid_le.SSID_len = + cpu_to_le32(request->ssids[i].ssid_len); + memcpy(ssid_le.SSID, request->ssids[i].ssid, + request->ssids[i].ssid_len); + if (!ssid_le.SSID_len) + brcmf_dbg(SCAN, "%d: Broadcast scan\n", i); + else + brcmf_dbg(SCAN, "%d: scan for %s size =%d\n", + i, ssid_le.SSID, ssid_le.SSID_len); + memcpy(ptr, &ssid_le, sizeof(ssid_le)); + ptr += sizeof(ssid_le); + } + } else { + brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids); + if ((request->ssids) && request->ssids->ssid_len) { + brcmf_dbg(SCAN, "SSID %s len=%d\n", + params_le->ssid_le.SSID, + request->ssids->ssid_len); + params_le->ssid_le.SSID_len = + cpu_to_le32(request->ssids->ssid_len); + memcpy(¶ms_le->ssid_le.SSID, request->ssids->ssid, + request->ssids->ssid_len); + } + } + /* Adding mask to channel numbers */ + params_le->channel_num = + cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) | + (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK)); +} + +static s32 +brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp, + struct cfg80211_scan_request *request, u16 action) +{ + s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE + + offsetof(struct brcmf_escan_params_le, params_le); + struct brcmf_escan_params_le *params; + s32 err = 0; + + brcmf_dbg(SCAN, "E-SCAN START\n"); + + if (request != NULL) { + /* Allocate space for populating ssids in struct */ + params_size += sizeof(u32) * ((request->n_channels + 1) / 2); + + /* Allocate space for populating ssids in struct */ + params_size += sizeof(struct brcmf_ssid) * request->n_ssids; + } + + params = kzalloc(params_size, GFP_KERNEL); + if (!params) { + err = -ENOMEM; + goto exit; + } + BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN); + brcmf_escan_prep(cfg, ¶ms->params_le, request); + params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION); + params->action = cpu_to_le16(action); + params->sync_id = cpu_to_le16(0x1234); + + err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size); + if (err) { + if (err == -EBUSY) + brcmf_dbg(INFO, "system busy : escan canceled\n"); + else + brcmf_err("error (%d)\n", err); + } + + kfree(params); +exit: + return err; +} + +static s32 +brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy, + struct brcmf_if *ifp, struct cfg80211_scan_request *request) +{ + s32 err; + u32 passive_scan; + struct brcmf_scan_results *results; + struct escan_info *escan = &cfg->escan_info; + + brcmf_dbg(SCAN, "Enter\n"); + escan->ifp = ifp; + escan->wiphy = wiphy; + escan->escan_state = WL_ESCAN_STATE_SCANNING; + passive_scan = cfg->active_scan ? 0 : 1; + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN, + passive_scan); + if (err) { + brcmf_err("error (%d)\n", err); + return err; + } + brcmf_scan_config_mpc(ifp, 0); + results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf; + results->version = 0; + results->count = 0; + results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE; + + err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START); + if (err) + brcmf_scan_config_mpc(ifp, 1); + return err; +} + +static s32 +brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif, + struct cfg80211_scan_request *request, + struct cfg80211_ssid *this_ssid) +{ + struct brcmf_if *ifp = vif->ifp; + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct cfg80211_ssid *ssids; + struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int; + u32 passive_scan; + bool escan_req; + bool spec_scan; + s32 err; + u32 SSID_len; + + brcmf_dbg(SCAN, "START ESCAN\n"); + + if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { + brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status); + return -EAGAIN; + } + if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) { + brcmf_err("Scanning being aborted: status (%lu)\n", + cfg->scan_status); + return -EAGAIN; + } + if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) { + brcmf_err("Scanning suppressed: status (%lu)\n", + cfg->scan_status); + return -EAGAIN; + } + if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) { + brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state); + return -EAGAIN; + } + + /* If scan req comes for p2p0, send it over primary I/F */ + if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) + vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; + + escan_req = false; + if (request) { + /* scan bss */ + ssids = request->ssids; + escan_req = true; + } else { + /* scan in ibss */ + /* we don't do escan in ibss */ + ssids = this_ssid; + } + + cfg->scan_request = request; + set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); + if (escan_req) { + cfg->escan_info.run = brcmf_run_escan; + err = brcmf_p2p_scan_prep(wiphy, request, vif); + if (err) + goto scan_out; + + err = brcmf_do_escan(cfg, wiphy, vif->ifp, request); + if (err) + goto scan_out; + } else { + brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n", + ssids->ssid, ssids->ssid_len); + memset(&sr->ssid_le, 0, sizeof(sr->ssid_le)); + SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len); + sr->ssid_le.SSID_len = cpu_to_le32(0); + spec_scan = false; + if (SSID_len) { + memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len); + sr->ssid_le.SSID_len = cpu_to_le32(SSID_len); + spec_scan = true; + } else + brcmf_dbg(SCAN, "Broadcast scan\n"); + + passive_scan = cfg->active_scan ? 0 : 1; + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN, + passive_scan); + if (err) { + brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err); + goto scan_out; + } + brcmf_scan_config_mpc(ifp, 0); + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN, + &sr->ssid_le, sizeof(sr->ssid_le)); + if (err) { + if (err == -EBUSY) + brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n", + sr->ssid_le.SSID); + else + brcmf_err("WLC_SCAN error (%d)\n", err); + + brcmf_scan_config_mpc(ifp, 1); + goto scan_out; + } + } + + /* Arm scan timeout timer */ + mod_timer(&cfg->escan_timeout, jiffies + + WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000); + + return 0; + +scan_out: + clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); + cfg->scan_request = NULL; + return err; +} + +static s32 +brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) +{ + struct brcmf_cfg80211_vif *vif; + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev); + if (!check_vif_up(vif)) + return -EIO; + + err = brcmf_cfg80211_escan(wiphy, vif, request, NULL); + + if (err) + brcmf_err("scan error (%d)\n", err); + + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold) +{ + s32 err = 0; + + err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh", + rts_threshold); + if (err) + brcmf_err("Error (%d)\n", err); + + return err; +} + +static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold) +{ + s32 err = 0; + + err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh", + frag_threshold); + if (err) + brcmf_err("Error (%d)\n", err); + + return err; +} + +static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l) +{ + s32 err = 0; + u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL); + + err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry); + if (err) { + brcmf_err("cmd (%d) , error (%d)\n", cmd, err); + return err; + } + return err; +} + +static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct net_device *ndev = cfg_to_ndev(cfg); + struct brcmf_if *ifp = netdev_priv(ndev); + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + if (changed & WIPHY_PARAM_RTS_THRESHOLD && + (cfg->conf->rts_threshold != wiphy->rts_threshold)) { + cfg->conf->rts_threshold = wiphy->rts_threshold; + err = brcmf_set_rts(ndev, cfg->conf->rts_threshold); + if (!err) + goto done; + } + if (changed & WIPHY_PARAM_FRAG_THRESHOLD && + (cfg->conf->frag_threshold != wiphy->frag_threshold)) { + cfg->conf->frag_threshold = wiphy->frag_threshold; + err = brcmf_set_frag(ndev, cfg->conf->frag_threshold); + if (!err) + goto done; + } + if (changed & WIPHY_PARAM_RETRY_LONG + && (cfg->conf->retry_long != wiphy->retry_long)) { + cfg->conf->retry_long = wiphy->retry_long; + err = brcmf_set_retry(ndev, cfg->conf->retry_long, true); + if (!err) + goto done; + } + if (changed & WIPHY_PARAM_RETRY_SHORT + && (cfg->conf->retry_short != wiphy->retry_short)) { + cfg->conf->retry_short = wiphy->retry_short; + err = brcmf_set_retry(ndev, cfg->conf->retry_short, false); + if (!err) + goto done; + } + +done: + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof) +{ + memset(prof, 0, sizeof(*prof)); +} + +static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e) +{ + u16 reason; + + switch (e->event_code) { + case BRCMF_E_DEAUTH: + case BRCMF_E_DEAUTH_IND: + case BRCMF_E_DISASSOC_IND: + reason = e->reason; + break; + case BRCMF_E_LINK: + default: + reason = 0; + break; + } + return reason; +} + +static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy); + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + + if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) { + brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n "); + err = brcmf_fil_cmd_data_set(vif->ifp, + BRCMF_C_DISASSOC, NULL, 0); + if (err) { + brcmf_err("WLC_DISASSOC failed (%d)\n", err); + } + clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state); + cfg80211_disconnected(vif->wdev.netdev, reason, NULL, 0, + GFP_KERNEL); + + } + clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state); + clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); + brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0); + brcmf_dbg(TRACE, "Exit\n"); +} + +static s32 +brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_ibss_params *params) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; + struct brcmf_join_params join_params; + size_t join_params_size = 0; + s32 err = 0; + s32 wsec = 0; + s32 bcnprd; + u16 chanspec; + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + if (params->ssid) + brcmf_dbg(CONN, "SSID: %s\n", params->ssid); + else { + brcmf_dbg(CONN, "SSID: NULL, Not supported\n"); + return -EOPNOTSUPP; + } + + set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); + + if (params->bssid) + brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid); + else + brcmf_dbg(CONN, "No BSSID specified\n"); + + if (params->chandef.chan) + brcmf_dbg(CONN, "channel: %d\n", + params->chandef.chan->center_freq); + else + brcmf_dbg(CONN, "no channel specified\n"); + + if (params->channel_fixed) + brcmf_dbg(CONN, "fixed channel required\n"); + else + brcmf_dbg(CONN, "no fixed channel required\n"); + + if (params->ie && params->ie_len) + brcmf_dbg(CONN, "ie len: %d\n", params->ie_len); + else + brcmf_dbg(CONN, "no ie specified\n"); + + if (params->beacon_interval) + brcmf_dbg(CONN, "beacon interval: %d\n", + params->beacon_interval); + else + brcmf_dbg(CONN, "no beacon interval specified\n"); + + if (params->basic_rates) + brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates); + else + brcmf_dbg(CONN, "no basic rates specified\n"); + + if (params->privacy) + brcmf_dbg(CONN, "privacy required\n"); + else + brcmf_dbg(CONN, "no privacy required\n"); + + /* Configure Privacy for starter */ + if (params->privacy) + wsec |= WEP_ENABLED; + + err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec); + if (err) { + brcmf_err("wsec failed (%d)\n", err); + goto done; + } + + /* Configure Beacon Interval for starter */ + if (params->beacon_interval) + bcnprd = params->beacon_interval; + else + bcnprd = 100; + + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd); + if (err) { + brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err); + goto done; + } + + /* Configure required join parameter */ + memset(&join_params, 0, sizeof(struct brcmf_join_params)); + + /* SSID */ + profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32); + memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len); + memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len); + join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len); + join_params_size = sizeof(join_params.ssid_le); + + /* BSSID */ + if (params->bssid) { + memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN); + join_params_size = sizeof(join_params.ssid_le) + + BRCMF_ASSOC_PARAMS_FIXED_SIZE; + memcpy(profile->bssid, params->bssid, ETH_ALEN); + } else { + eth_broadcast_addr(join_params.params_le.bssid); + eth_zero_addr(profile->bssid); + } + + /* Channel */ + if (params->chandef.chan) { + u32 target_channel; + + cfg->channel = + ieee80211_frequency_to_channel( + params->chandef.chan->center_freq); + if (params->channel_fixed) { + /* adding chanspec */ + chanspec = chandef_to_chanspec(&cfg->d11inf, + ¶ms->chandef); + join_params.params_le.chanspec_list[0] = + cpu_to_le16(chanspec); + join_params.params_le.chanspec_num = cpu_to_le32(1); + join_params_size += sizeof(join_params.params_le); + } + + /* set channel for starter */ + target_channel = cfg->channel; + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL, + target_channel); + if (err) { + brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err); + goto done; + } + } else + cfg->channel = 0; + + cfg->ibss_starter = false; + + + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, + &join_params, join_params_size); + if (err) { + brcmf_err("WLC_SET_SSID failed (%d)\n", err); + goto done; + } + +done: + if (err) + clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + brcmf_link_down(ifp->vif, WLAN_REASON_DEAUTH_LEAVING); + + brcmf_dbg(TRACE, "Exit\n"); + + return 0; +} + +static s32 brcmf_set_wpa_version(struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); + struct brcmf_cfg80211_security *sec; + s32 val = 0; + s32 err = 0; + + if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) + val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED; + else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) + val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED; + else + val = WPA_AUTH_DISABLED; + brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val); + err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val); + if (err) { + brcmf_err("set wpa_auth failed (%d)\n", err); + return err; + } + sec = &profile->sec; + sec->wpa_versions = sme->crypto.wpa_versions; + return err; +} + +static s32 brcmf_set_auth_type(struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); + struct brcmf_cfg80211_security *sec; + s32 val = 0; + s32 err = 0; + + switch (sme->auth_type) { + case NL80211_AUTHTYPE_OPEN_SYSTEM: + val = 0; + brcmf_dbg(CONN, "open system\n"); + break; + case NL80211_AUTHTYPE_SHARED_KEY: + val = 1; + brcmf_dbg(CONN, "shared key\n"); + break; + case NL80211_AUTHTYPE_AUTOMATIC: + val = 2; + brcmf_dbg(CONN, "automatic\n"); + break; + case NL80211_AUTHTYPE_NETWORK_EAP: + brcmf_dbg(CONN, "network eap\n"); + default: + val = 2; + brcmf_err("invalid auth type (%d)\n", sme->auth_type); + break; + } + + err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val); + if (err) { + brcmf_err("set auth failed (%d)\n", err); + return err; + } + sec = &profile->sec; + sec->auth_type = sme->auth_type; + return err; +} + +static s32 +brcmf_set_wsec_mode(struct net_device *ndev, + struct cfg80211_connect_params *sme, bool mfp) +{ + struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); + struct brcmf_cfg80211_security *sec; + s32 pval = 0; + s32 gval = 0; + s32 wsec; + s32 err = 0; + + if (sme->crypto.n_ciphers_pairwise) { + switch (sme->crypto.ciphers_pairwise[0]) { + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + pval = WEP_ENABLED; + break; + case WLAN_CIPHER_SUITE_TKIP: + pval = TKIP_ENABLED; + break; + case WLAN_CIPHER_SUITE_CCMP: + pval = AES_ENABLED; + break; + case WLAN_CIPHER_SUITE_AES_CMAC: + pval = AES_ENABLED; + break; + default: + brcmf_err("invalid cipher pairwise (%d)\n", + sme->crypto.ciphers_pairwise[0]); + return -EINVAL; + } + } + if (sme->crypto.cipher_group) { + switch (sme->crypto.cipher_group) { + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + gval = WEP_ENABLED; + break; + case WLAN_CIPHER_SUITE_TKIP: + gval = TKIP_ENABLED; + break; + case WLAN_CIPHER_SUITE_CCMP: + gval = AES_ENABLED; + break; + case WLAN_CIPHER_SUITE_AES_CMAC: + gval = AES_ENABLED; + break; + default: + brcmf_err("invalid cipher group (%d)\n", + sme->crypto.cipher_group); + return -EINVAL; + } + } + + brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval); + /* In case of privacy, but no security and WPS then simulate */ + /* setting AES. WPS-2.0 allows no security */ + if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval && + sme->privacy) + pval = AES_ENABLED; + + if (mfp) + wsec = pval | gval | MFP_CAPABLE; + else + wsec = pval | gval; + err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec); + if (err) { + brcmf_err("error (%d)\n", err); + return err; + } + + sec = &profile->sec; + sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0]; + sec->cipher_group = sme->crypto.cipher_group; + + return err; +} + +static s32 +brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); + struct brcmf_cfg80211_security *sec; + s32 val = 0; + s32 err = 0; + + if (sme->crypto.n_akm_suites) { + err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev), + "wpa_auth", &val); + if (err) { + brcmf_err("could not get wpa_auth (%d)\n", err); + return err; + } + if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) { + switch (sme->crypto.akm_suites[0]) { + case WLAN_AKM_SUITE_8021X: + val = WPA_AUTH_UNSPECIFIED; + break; + case WLAN_AKM_SUITE_PSK: + val = WPA_AUTH_PSK; + break; + default: + brcmf_err("invalid cipher group (%d)\n", + sme->crypto.cipher_group); + return -EINVAL; + } + } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) { + switch (sme->crypto.akm_suites[0]) { + case WLAN_AKM_SUITE_8021X: + val = WPA2_AUTH_UNSPECIFIED; + break; + case WLAN_AKM_SUITE_PSK: + val = WPA2_AUTH_PSK; + break; + default: + brcmf_err("invalid cipher group (%d)\n", + sme->crypto.cipher_group); + return -EINVAL; + } + } + + brcmf_dbg(CONN, "setting wpa_auth to %d\n", val); + err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), + "wpa_auth", val); + if (err) { + brcmf_err("could not set wpa_auth (%d)\n", err); + return err; + } + } + sec = &profile->sec; + sec->wpa_auth = sme->crypto.akm_suites[0]; + + return err; +} + +static s32 +brcmf_set_sharedkey(struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); + struct brcmf_cfg80211_security *sec; + struct brcmf_wsec_key key; + s32 val; + s32 err = 0; + + brcmf_dbg(CONN, "key len (%d)\n", sme->key_len); + + if (sme->key_len == 0) + return 0; + + sec = &profile->sec; + brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n", + sec->wpa_versions, sec->cipher_pairwise); + + if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2)) + return 0; + + if (!(sec->cipher_pairwise & + (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104))) + return 0; + + memset(&key, 0, sizeof(key)); + key.len = (u32) sme->key_len; + key.index = (u32) sme->key_idx; + if (key.len > sizeof(key.data)) { + brcmf_err("Too long key length (%u)\n", key.len); + return -EINVAL; + } + memcpy(key.data, sme->key, key.len); + key.flags = BRCMF_PRIMARY_KEY; + switch (sec->cipher_pairwise) { + case WLAN_CIPHER_SUITE_WEP40: + key.algo = CRYPTO_ALGO_WEP1; + break; + case WLAN_CIPHER_SUITE_WEP104: + key.algo = CRYPTO_ALGO_WEP128; + break; + default: + brcmf_err("Invalid algorithm (%d)\n", + sme->crypto.ciphers_pairwise[0]); + return -EINVAL; + } + /* Set the new key/index */ + brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n", + key.len, key.index, key.algo); + brcmf_dbg(CONN, "key \"%s\"\n", key.data); + err = send_key_to_dongle(netdev_priv(ndev), &key); + if (err) + return err; + + if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) { + brcmf_dbg(CONN, "set auth_type to shared key\n"); + val = WL_AUTH_SHARED_KEY; /* shared key */ + err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val); + if (err) + brcmf_err("set auth failed (%d)\n", err); + } + return err; +} + +static +enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp, + enum nl80211_auth_type type) +{ + if (type == NL80211_AUTHTYPE_AUTOMATIC && + brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) { + brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n"); + type = NL80211_AUTHTYPE_OPEN_SYSTEM; + } + return type; +} + +static s32 +brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; + struct ieee80211_channel *chan = sme->channel; + struct brcmf_join_params join_params; + size_t join_params_size; + const struct brcmf_tlv *rsn_ie; + const struct brcmf_vs_tlv *wpa_ie; + const void *ie; + u32 ie_len; + struct brcmf_ext_join_params_le *ext_join_params; + u16 chanspec; + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + if (!sme->ssid) { + brcmf_err("Invalid ssid\n"); + return -EOPNOTSUPP; + } + + if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) { + /* A normal (non P2P) connection request setup. */ + ie = NULL; + ie_len = 0; + /* find the WPA_IE */ + wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len); + if (wpa_ie) { + ie = wpa_ie; + ie_len = wpa_ie->len + TLV_HDR_LEN; + } else { + /* find the RSN_IE */ + rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie, + sme->ie_len, + WLAN_EID_RSN); + if (rsn_ie) { + ie = rsn_ie; + ie_len = rsn_ie->len + TLV_HDR_LEN; + } + } + brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len); + } + + err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG, + sme->ie, sme->ie_len); + if (err) + brcmf_err("Set Assoc REQ IE Failed\n"); + else + brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n"); + + set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); + + if (chan) { + cfg->channel = + ieee80211_frequency_to_channel(chan->center_freq); + chanspec = channel_to_chanspec(&cfg->d11inf, chan); + brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n", + cfg->channel, chan->center_freq, chanspec); + } else { + cfg->channel = 0; + chanspec = 0; + } + + brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len); + + err = brcmf_set_wpa_version(ndev, sme); + if (err) { + brcmf_err("wl_set_wpa_version failed (%d)\n", err); + goto done; + } + + sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type); + err = brcmf_set_auth_type(ndev, sme); + if (err) { + brcmf_err("wl_set_auth_type failed (%d)\n", err); + goto done; + } + + err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED); + if (err) { + brcmf_err("wl_set_set_cipher failed (%d)\n", err); + goto done; + } + + err = brcmf_set_key_mgmt(ndev, sme); + if (err) { + brcmf_err("wl_set_key_mgmt failed (%d)\n", err); + goto done; + } + + err = brcmf_set_sharedkey(ndev, sme); + if (err) { + brcmf_err("brcmf_set_sharedkey failed (%d)\n", err); + goto done; + } + + profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID), + (u32)sme->ssid_len); + memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len); + if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) { + profile->ssid.SSID[profile->ssid.SSID_len] = 0; + brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID, + profile->ssid.SSID_len); + } + + /* Join with specific BSSID and cached SSID + * If SSID is zero join based on BSSID only + */ + join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) + + offsetof(struct brcmf_assoc_params_le, chanspec_list); + if (cfg->channel) + join_params_size += sizeof(u16); + ext_join_params = kzalloc(join_params_size, GFP_KERNEL); + if (ext_join_params == NULL) { + err = -ENOMEM; + goto done; + } + ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len); + memcpy(&ext_join_params->ssid_le.SSID, sme->ssid, + profile->ssid.SSID_len); + + /* Set up join scan parameters */ + ext_join_params->scan_le.scan_type = -1; + ext_join_params->scan_le.home_time = cpu_to_le32(-1); + + if (sme->bssid) + memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN); + else + eth_broadcast_addr(ext_join_params->assoc_le.bssid); + + if (cfg->channel) { + ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1); + + ext_join_params->assoc_le.chanspec_list[0] = + cpu_to_le16(chanspec); + /* Increase dwell time to receive probe response or detect + * beacon from target AP at a noisy air only during connect + * command. + */ + ext_join_params->scan_le.active_time = + cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS); + ext_join_params->scan_le.passive_time = + cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS); + /* To sync with presence period of VSDB GO send probe request + * more frequently. Probe request will be stopped when it gets + * probe response from target AP/GO. + */ + ext_join_params->scan_le.nprobes = + cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS / + BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS); + } else { + ext_join_params->scan_le.active_time = cpu_to_le32(-1); + ext_join_params->scan_le.passive_time = cpu_to_le32(-1); + ext_join_params->scan_le.nprobes = cpu_to_le32(-1); + } + + err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params, + join_params_size); + kfree(ext_join_params); + if (!err) + /* This is it. join command worked, we are done */ + goto done; + + /* join command failed, fallback to set ssid */ + memset(&join_params, 0, sizeof(join_params)); + join_params_size = sizeof(join_params.ssid_le); + + memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len); + join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len); + + if (sme->bssid) + memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN); + else + eth_broadcast_addr(join_params.params_le.bssid); + + if (cfg->channel) { + join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec); + join_params.params_le.chanspec_num = cpu_to_le32(1); + join_params_size += sizeof(join_params.params_le); + } + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, + &join_params, join_params_size); + if (err) + brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err); + +done: + if (err) + clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev, + u16 reason_code) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; + struct brcmf_scb_val_le scbval; + s32 err = 0; + + brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code); + if (!check_vif_up(ifp->vif)) + return -EIO; + + clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); + clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); + cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL); + + memcpy(&scbval.ea, &profile->bssid, ETH_ALEN); + scbval.val = cpu_to_le32(reason_code); + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC, + &scbval, sizeof(scbval)); + if (err) + brcmf_err("error (%d)\n", err); + + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, + enum nl80211_tx_power_setting type, s32 mbm) +{ + + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct net_device *ndev = cfg_to_ndev(cfg); + struct brcmf_if *ifp = netdev_priv(ndev); + u16 txpwrmw; + s32 err = 0; + s32 disable = 0; + s32 dbm = MBM_TO_DBM(mbm); + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + switch (type) { + case NL80211_TX_POWER_AUTOMATIC: + break; + case NL80211_TX_POWER_LIMITED: + case NL80211_TX_POWER_FIXED: + if (dbm < 0) { + brcmf_err("TX_POWER_FIXED - dbm is negative\n"); + err = -EINVAL; + goto done; + } + break; + } + /* Make sure radio is off or on as far as software is concerned */ + disable = WL_RADIO_SW_DISABLE << 16; + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable); + if (err) + brcmf_err("WLC_SET_RADIO error (%d)\n", err); + + if (dbm > 0xffff) + txpwrmw = 0xffff; + else + txpwrmw = (u16) dbm; + err = brcmf_fil_iovar_int_set(ifp, "qtxpower", + (s32)brcmf_mw_to_qdbm(txpwrmw)); + if (err) + brcmf_err("qtxpower error (%d)\n", err); + cfg->conf->tx_power = dbm; + +done: + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, + struct wireless_dev *wdev, + s32 *dbm) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + s32 txpwrdbm; + u8 result; + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm); + if (err) { + brcmf_err("error (%d)\n", err); + goto done; + } + + result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE); + *dbm = (s32) brcmf_qdbm_to_mw(result); + +done: + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, bool unicast, bool multicast) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + u32 index; + u32 wsec; + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + brcmf_dbg(CONN, "key index (%d)\n", key_idx); + if (!check_vif_up(ifp->vif)) + return -EIO; + + err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); + if (err) { + brcmf_err("WLC_GET_WSEC error (%d)\n", err); + goto done; + } + + if (wsec & WEP_ENABLED) { + /* Just select a new current key */ + index = key_idx; + err = brcmf_fil_cmd_int_set(ifp, + BRCMF_C_SET_KEY_PRIMARY, index); + if (err) + brcmf_err("error (%d)\n", err); + } +done: + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, const u8 *mac_addr, struct key_params *params) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_wsec_key key; + s32 err = 0; + u8 keybuf[8]; + + memset(&key, 0, sizeof(key)); + key.index = (u32) key_idx; + /* Instead of bcast for ea address for default wep keys, + driver needs it to be Null */ + if (!is_multicast_ether_addr(mac_addr)) + memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN); + key.len = (u32) params->key_len; + /* check for key index change */ + if (key.len == 0) { + /* key delete */ + err = send_key_to_dongle(ifp, &key); + if (err) + brcmf_err("key delete error (%d)\n", err); + } else { + if (key.len > sizeof(key.data)) { + brcmf_err("Invalid key length (%d)\n", key.len); + return -EINVAL; + } + + brcmf_dbg(CONN, "Setting the key index %d\n", key.index); + memcpy(key.data, params->key, key.len); + + if (!brcmf_is_apmode(ifp->vif) && + (params->cipher == WLAN_CIPHER_SUITE_TKIP)) { + brcmf_dbg(CONN, "Swapping RX/TX MIC key\n"); + memcpy(keybuf, &key.data[24], sizeof(keybuf)); + memcpy(&key.data[24], &key.data[16], sizeof(keybuf)); + memcpy(&key.data[16], keybuf, sizeof(keybuf)); + } + + /* if IW_ENCODE_EXT_RX_SEQ_VALID set */ + if (params->seq && params->seq_len == 6) { + /* rx iv */ + u8 *ivptr; + ivptr = (u8 *) params->seq; + key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) | + (ivptr[3] << 8) | ivptr[2]; + key.rxiv.lo = (ivptr[1] << 8) | ivptr[0]; + key.iv_initialized = true; + } + + switch (params->cipher) { + case WLAN_CIPHER_SUITE_WEP40: + key.algo = CRYPTO_ALGO_WEP1; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n"); + break; + case WLAN_CIPHER_SUITE_WEP104: + key.algo = CRYPTO_ALGO_WEP128; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n"); + break; + case WLAN_CIPHER_SUITE_TKIP: + key.algo = CRYPTO_ALGO_TKIP; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n"); + break; + case WLAN_CIPHER_SUITE_AES_CMAC: + key.algo = CRYPTO_ALGO_AES_CCM; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n"); + break; + case WLAN_CIPHER_SUITE_CCMP: + key.algo = CRYPTO_ALGO_AES_CCM; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n"); + break; + default: + brcmf_err("Invalid cipher (0x%x)\n", params->cipher); + return -EINVAL; + } + err = send_key_to_dongle(ifp, &key); + if (err) + brcmf_err("wsec_key error (%d)\n", err); + } + return err; +} + +static s32 +brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, bool pairwise, const u8 *mac_addr, + struct key_params *params) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_wsec_key *key; + s32 val; + s32 wsec; + s32 err = 0; + u8 keybuf[8]; + + brcmf_dbg(TRACE, "Enter\n"); + brcmf_dbg(CONN, "key index (%d)\n", key_idx); + if (!check_vif_up(ifp->vif)) + return -EIO; + + if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) { + /* we ignore this key index in this case */ + brcmf_err("invalid key index (%d)\n", key_idx); + return -EINVAL; + } + + if (mac_addr && + (params->cipher != WLAN_CIPHER_SUITE_WEP40) && + (params->cipher != WLAN_CIPHER_SUITE_WEP104)) { + brcmf_dbg(TRACE, "Exit"); + return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params); + } + + key = &ifp->vif->profile.key[key_idx]; + memset(key, 0, sizeof(*key)); + + if (params->key_len > sizeof(key->data)) { + brcmf_err("Too long key length (%u)\n", params->key_len); + err = -EINVAL; + goto done; + } + key->len = params->key_len; + key->index = key_idx; + + memcpy(key->data, params->key, key->len); + + key->flags = BRCMF_PRIMARY_KEY; + switch (params->cipher) { + case WLAN_CIPHER_SUITE_WEP40: + key->algo = CRYPTO_ALGO_WEP1; + val = WEP_ENABLED; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n"); + break; + case WLAN_CIPHER_SUITE_WEP104: + key->algo = CRYPTO_ALGO_WEP128; + val = WEP_ENABLED; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n"); + break; + case WLAN_CIPHER_SUITE_TKIP: + if (!brcmf_is_apmode(ifp->vif)) { + brcmf_dbg(CONN, "Swapping RX/TX MIC key\n"); + memcpy(keybuf, &key->data[24], sizeof(keybuf)); + memcpy(&key->data[24], &key->data[16], sizeof(keybuf)); + memcpy(&key->data[16], keybuf, sizeof(keybuf)); + } + key->algo = CRYPTO_ALGO_TKIP; + val = TKIP_ENABLED; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n"); + break; + case WLAN_CIPHER_SUITE_AES_CMAC: + key->algo = CRYPTO_ALGO_AES_CCM; + val = AES_ENABLED; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n"); + break; + case WLAN_CIPHER_SUITE_CCMP: + key->algo = CRYPTO_ALGO_AES_CCM; + val = AES_ENABLED; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n"); + break; + default: + brcmf_err("Invalid cipher (0x%x)\n", params->cipher); + err = -EINVAL; + goto done; + } + + err = send_key_to_dongle(ifp, key); + if (err) + goto done; + + err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); + if (err) { + brcmf_err("get wsec error (%d)\n", err); + goto done; + } + wsec |= val; + err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); + if (err) { + brcmf_err("set wsec error (%d)\n", err); + goto done; + } + +done: + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, bool pairwise, const u8 *mac_addr) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_wsec_key key; + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) { + /* we ignore this key index in this case */ + return -EINVAL; + } + + memset(&key, 0, sizeof(key)); + + key.index = (u32) key_idx; + key.flags = BRCMF_PRIMARY_KEY; + key.algo = CRYPTO_ALGO_OFF; + + brcmf_dbg(CONN, "key index (%d)\n", key_idx); + + /* Set the new key/index */ + err = send_key_to_dongle(ifp, &key); + + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie, + void (*callback) (void *cookie, struct key_params * params)) +{ + struct key_params params; + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; + struct brcmf_cfg80211_security *sec; + s32 wsec; + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + brcmf_dbg(CONN, "key index (%d)\n", key_idx); + if (!check_vif_up(ifp->vif)) + return -EIO; + + memset(¶ms, 0, sizeof(params)); + + err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); + if (err) { + brcmf_err("WLC_GET_WSEC error (%d)\n", err); + /* Ignore this error, may happen during DISASSOC */ + err = -EAGAIN; + goto done; + } + if (wsec & WEP_ENABLED) { + sec = &profile->sec; + if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) { + params.cipher = WLAN_CIPHER_SUITE_WEP40; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n"); + } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) { + params.cipher = WLAN_CIPHER_SUITE_WEP104; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n"); + } + } else if (wsec & TKIP_ENABLED) { + params.cipher = WLAN_CIPHER_SUITE_TKIP; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n"); + } else if (wsec & AES_ENABLED) { + params.cipher = WLAN_CIPHER_SUITE_AES_CMAC; + brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n"); + } else { + brcmf_err("Invalid algo (0x%x)\n", wsec); + err = -EINVAL; + goto done; + } + callback(cookie, ¶ms); + +done: + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy, + struct net_device *ndev, u8 key_idx) +{ + brcmf_dbg(INFO, "Not supported\n"); + + return -EOPNOTSUPP; +} + +static void +brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp) +{ + s32 err; + u8 key_idx; + struct brcmf_wsec_key *key; + s32 wsec; + + for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) { + key = &ifp->vif->profile.key[key_idx]; + if ((key->algo == CRYPTO_ALGO_WEP1) || + (key->algo == CRYPTO_ALGO_WEP128)) + break; + } + if (key_idx == BRCMF_MAX_DEFAULT_KEYS) + return; + + err = send_key_to_dongle(ifp, key); + if (err) { + brcmf_err("Setting WEP key failed (%d)\n", err); + return; + } + err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); + if (err) { + brcmf_err("get wsec error (%d)\n", err); + return; + } + wsec |= WEP_ENABLED; + err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); + if (err) + brcmf_err("set wsec error (%d)\n", err); +} + +static s32 +brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev, + const u8 *mac, struct station_info *sinfo) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; + struct brcmf_scb_val_le scb_val; + int rssi; + s32 rate; + s32 err = 0; + u8 *bssid = profile->bssid; + struct brcmf_sta_info_le sta_info_le; + u32 beacon_period; + u32 dtim_period; + + brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac); + if (!check_vif_up(ifp->vif)) + return -EIO; + + if (brcmf_is_apmode(ifp->vif)) { + memcpy(&sta_info_le, mac, ETH_ALEN); + err = brcmf_fil_iovar_data_get(ifp, "sta_info", + &sta_info_le, + sizeof(sta_info_le)); + if (err < 0) { + brcmf_err("GET STA INFO failed, %d\n", err); + goto done; + } + sinfo->filled = BIT(NL80211_STA_INFO_INACTIVE_TIME); + sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000; + if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) { + sinfo->filled |= BIT(NL80211_STA_INFO_CONNECTED_TIME); + sinfo->connected_time = le32_to_cpu(sta_info_le.in); + } + brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n", + sinfo->inactive_time, sinfo->connected_time); + } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) { + if (memcmp(mac, bssid, ETH_ALEN)) { + brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n", + mac, bssid); + err = -ENOENT; + goto done; + } + /* Report the current tx rate */ + err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate); + if (err) { + brcmf_err("Could not get rate (%d)\n", err); + goto done; + } else { + sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE); + sinfo->txrate.legacy = rate * 5; + brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2); + } + + if (test_bit(BRCMF_VIF_STATUS_CONNECTED, + &ifp->vif->sme_state)) { + memset(&scb_val, 0, sizeof(scb_val)); + err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI, + &scb_val, sizeof(scb_val)); + if (err) { + brcmf_err("Could not get rssi (%d)\n", err); + goto done; + } else { + rssi = le32_to_cpu(scb_val.val); + sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); + sinfo->signal = rssi; + brcmf_dbg(CONN, "RSSI %d dBm\n", rssi); + } + err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD, + &beacon_period); + if (err) { + brcmf_err("Could not get beacon period (%d)\n", + err); + goto done; + } else { + sinfo->bss_param.beacon_interval = + beacon_period; + brcmf_dbg(CONN, "Beacon peroid %d\n", + beacon_period); + } + err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD, + &dtim_period); + if (err) { + brcmf_err("Could not get DTIM period (%d)\n", + err); + goto done; + } else { + sinfo->bss_param.dtim_period = dtim_period; + brcmf_dbg(CONN, "DTIM peroid %d\n", + dtim_period); + } + sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM); + } + } else + err = -EPERM; +done: + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev, + bool enabled, s32 timeout) +{ + s32 pm; + s32 err = 0; + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = netdev_priv(ndev); + + brcmf_dbg(TRACE, "Enter\n"); + + /* + * Powersave enable/disable request is coming from the + * cfg80211 even before the interface is up. In that + * scenario, driver will be storing the power save + * preference in cfg struct to apply this to + * FW later while initializing the dongle + */ + cfg->pwr_save = enabled; + if (!check_vif_up(ifp->vif)) { + + brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n"); + goto done; + } + + pm = enabled ? PM_FAST : PM_OFF; + /* Do not enable the power save after assoc if it is a p2p interface */ + if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) { + brcmf_dbg(INFO, "Do not enable power save for P2P clients\n"); + pm = PM_OFF; + } + brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled")); + + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm); + if (err) { + if (err == -ENODEV) + brcmf_err("net_device is not ready yet\n"); + else + brcmf_err("error (%d)\n", err); + } +done: + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg, + struct brcmf_bss_info_le *bi) +{ + struct wiphy *wiphy = cfg_to_wiphy(cfg); + struct ieee80211_channel *notify_channel; + struct cfg80211_bss *bss; + struct ieee80211_supported_band *band; + struct brcmu_chan ch; + u16 channel; + u32 freq; + u16 notify_capability; + u16 notify_interval; + u8 *notify_ie; + size_t notify_ielen; + s32 notify_signal; + + if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) { + brcmf_err("Bss info is larger than buffer. Discarding\n"); + return 0; + } + + if (!bi->ctl_ch) { + ch.chspec = le16_to_cpu(bi->chanspec); + cfg->d11inf.decchspec(&ch); + bi->ctl_ch = ch.chnum; + } + channel = bi->ctl_ch; + + if (channel <= CH_MAX_2G_CHANNEL) + band = wiphy->bands[IEEE80211_BAND_2GHZ]; + else + band = wiphy->bands[IEEE80211_BAND_5GHZ]; + + freq = ieee80211_channel_to_frequency(channel, band->band); + notify_channel = ieee80211_get_channel(wiphy, freq); + + notify_capability = le16_to_cpu(bi->capability); + notify_interval = le16_to_cpu(bi->beacon_period); + notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); + notify_ielen = le32_to_cpu(bi->ie_length); + notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; + + brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID); + brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq); + brcmf_dbg(CONN, "Capability: %X\n", notify_capability); + brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval); + brcmf_dbg(CONN, "Signal: %d\n", notify_signal); + + bss = cfg80211_inform_bss(wiphy, notify_channel, + CFG80211_BSS_FTYPE_UNKNOWN, + (const u8 *)bi->BSSID, + 0, notify_capability, + notify_interval, notify_ie, + notify_ielen, notify_signal, + GFP_KERNEL); + + if (!bss) + return -ENOMEM; + + cfg80211_put_bss(wiphy, bss); + + return 0; +} + +static struct brcmf_bss_info_le * +next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss) +{ + if (bss == NULL) + return list->bss_info_le; + return (struct brcmf_bss_info_le *)((unsigned long)bss + + le32_to_cpu(bss->length)); +} + +static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg) +{ + struct brcmf_scan_results *bss_list; + struct brcmf_bss_info_le *bi = NULL; /* must be initialized */ + s32 err = 0; + int i; + + bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf; + if (bss_list->count != 0 && + bss_list->version != BRCMF_BSS_INFO_VERSION) { + brcmf_err("Version %d != WL_BSS_INFO_VERSION\n", + bss_list->version); + return -EOPNOTSUPP; + } + brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count); + for (i = 0; i < bss_list->count; i++) { + bi = next_bss_le(bss_list, bi); + err = brcmf_inform_single_bss(cfg, bi); + if (err) + break; + } + return err; +} + +static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg, + struct net_device *ndev, const u8 *bssid) +{ + struct wiphy *wiphy = cfg_to_wiphy(cfg); + struct ieee80211_channel *notify_channel; + struct brcmf_bss_info_le *bi = NULL; + struct ieee80211_supported_band *band; + struct cfg80211_bss *bss; + struct brcmu_chan ch; + u8 *buf = NULL; + s32 err = 0; + u32 freq; + u16 notify_capability; + u16 notify_interval; + u8 *notify_ie; + size_t notify_ielen; + s32 notify_signal; + + brcmf_dbg(TRACE, "Enter\n"); + + buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); + if (buf == NULL) { + err = -ENOMEM; + goto CleanUp; + } + + *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); + + err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO, + buf, WL_BSS_INFO_MAX); + if (err) { + brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err); + goto CleanUp; + } + + bi = (struct brcmf_bss_info_le *)(buf + 4); + + ch.chspec = le16_to_cpu(bi->chanspec); + cfg->d11inf.decchspec(&ch); + + if (ch.band == BRCMU_CHAN_BAND_2G) + band = wiphy->bands[IEEE80211_BAND_2GHZ]; + else + band = wiphy->bands[IEEE80211_BAND_5GHZ]; + + freq = ieee80211_channel_to_frequency(ch.chnum, band->band); + notify_channel = ieee80211_get_channel(wiphy, freq); + + notify_capability = le16_to_cpu(bi->capability); + notify_interval = le16_to_cpu(bi->beacon_period); + notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); + notify_ielen = le32_to_cpu(bi->ie_length); + notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; + + brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq); + brcmf_dbg(CONN, "capability: %X\n", notify_capability); + brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval); + brcmf_dbg(CONN, "signal: %d\n", notify_signal); + + bss = cfg80211_inform_bss(wiphy, notify_channel, + CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0, + notify_capability, notify_interval, + notify_ie, notify_ielen, notify_signal, + GFP_KERNEL); + + if (!bss) { + err = -ENOMEM; + goto CleanUp; + } + + cfg80211_put_bss(wiphy, bss); + +CleanUp: + + kfree(buf); + + brcmf_dbg(TRACE, "Exit\n"); + + return err; +} + +static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg, + struct brcmf_if *ifp) +{ + struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev); + struct brcmf_bss_info_le *bi; + struct brcmf_ssid *ssid; + const struct brcmf_tlv *tim; + u16 beacon_interval; + u8 dtim_period; + size_t ie_len; + u8 *ie; + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + if (brcmf_is_ibssmode(ifp->vif)) + return err; + + ssid = &profile->ssid; + + *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX); + err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, + cfg->extra_buf, WL_EXTRA_BUF_MAX); + if (err) { + brcmf_err("Could not get bss info %d\n", err); + goto update_bss_info_out; + } + + bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4); + err = brcmf_inform_single_bss(cfg, bi); + if (err) + goto update_bss_info_out; + + ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); + ie_len = le32_to_cpu(bi->ie_length); + beacon_interval = le16_to_cpu(bi->beacon_period); + + tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM); + if (tim) + dtim_period = tim->data[1]; + else { + /* + * active scan was done so we could not get dtim + * information out of probe response. + * so we speficially query dtim information to dongle. + */ + u32 var; + err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var); + if (err) { + brcmf_err("wl dtim_assoc failed (%d)\n", err); + goto update_bss_info_out; + } + dtim_period = (u8)var; + } + +update_bss_info_out: + brcmf_dbg(TRACE, "Exit"); + return err; +} + +void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg) +{ + struct escan_info *escan = &cfg->escan_info; + + set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status); + if (cfg->scan_request) { + escan->escan_state = WL_ESCAN_STATE_IDLE; + brcmf_notify_escan_complete(cfg, escan->ifp, true, true); + } + clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); + clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status); +} + +static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work) +{ + struct brcmf_cfg80211_info *cfg = + container_of(work, struct brcmf_cfg80211_info, + escan_timeout_work); + + brcmf_inform_bss(cfg); + brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true); +} + +static void brcmf_escan_timeout(unsigned long data) +{ + struct brcmf_cfg80211_info *cfg = + (struct brcmf_cfg80211_info *)data; + + if (cfg->scan_request) { + brcmf_err("timer expired\n"); + schedule_work(&cfg->escan_timeout_work); + } +} + +static s32 +brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg, + struct brcmf_bss_info_le *bss, + struct brcmf_bss_info_le *bss_info_le) +{ + struct brcmu_chan ch_bss, ch_bss_info_le; + + ch_bss.chspec = le16_to_cpu(bss->chanspec); + cfg->d11inf.decchspec(&ch_bss); + ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec); + cfg->d11inf.decchspec(&ch_bss_info_le); + + if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) && + ch_bss.band == ch_bss_info_le.band && + bss_info_le->SSID_len == bss->SSID_len && + !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) { + if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == + (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) { + s16 bss_rssi = le16_to_cpu(bss->RSSI); + s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI); + + /* preserve max RSSI if the measurements are + * both on-channel or both off-channel + */ + if (bss_info_rssi > bss_rssi) + bss->RSSI = bss_info_le->RSSI; + } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) && + (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) { + /* preserve the on-channel rssi measurement + * if the new measurement is off channel + */ + bss->RSSI = bss_info_le->RSSI; + bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL; + } + return 1; + } + return 0; +} + +static s32 +brcmf_cfg80211_escan_handler(struct brcmf_if *ifp, + const struct brcmf_event_msg *e, void *data) +{ + struct brcmf_cfg80211_info *cfg = ifp->drvr->config; + s32 status; + struct brcmf_escan_result_le *escan_result_le; + struct brcmf_bss_info_le *bss_info_le; + struct brcmf_bss_info_le *bss = NULL; + u32 bi_length; + struct brcmf_scan_results *list; + u32 i; + bool aborted; + + status = e->status; + + if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { + brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx); + return -EPERM; + } + + if (status == BRCMF_E_STATUS_PARTIAL) { + brcmf_dbg(SCAN, "ESCAN Partial result\n"); + escan_result_le = (struct brcmf_escan_result_le *) data; + if (!escan_result_le) { + brcmf_err("Invalid escan result (NULL pointer)\n"); + goto exit; + } + if (le16_to_cpu(escan_result_le->bss_count) != 1) { + brcmf_err("Invalid bss_count %d: ignoring\n", + escan_result_le->bss_count); + goto exit; + } + bss_info_le = &escan_result_le->bss_info_le; + + if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le)) + goto exit; + + if (!cfg->scan_request) { + brcmf_dbg(SCAN, "result without cfg80211 request\n"); + goto exit; + } + + bi_length = le32_to_cpu(bss_info_le->length); + if (bi_length != (le32_to_cpu(escan_result_le->buflen) - + WL_ESCAN_RESULTS_FIXED_SIZE)) { + brcmf_err("Invalid bss_info length %d: ignoring\n", + bi_length); + goto exit; + } + + if (!(cfg_to_wiphy(cfg)->interface_modes & + BIT(NL80211_IFTYPE_ADHOC))) { + if (le16_to_cpu(bss_info_le->capability) & + WLAN_CAPABILITY_IBSS) { + brcmf_err("Ignoring IBSS result\n"); + goto exit; + } + } + + list = (struct brcmf_scan_results *) + cfg->escan_info.escan_buf; + if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) { + brcmf_err("Buffer is too small: ignoring\n"); + goto exit; + } + + for (i = 0; i < list->count; i++) { + bss = bss ? (struct brcmf_bss_info_le *) + ((unsigned char *)bss + + le32_to_cpu(bss->length)) : list->bss_info_le; + if (brcmf_compare_update_same_bss(cfg, bss, + bss_info_le)) + goto exit; + } + memcpy(&(cfg->escan_info.escan_buf[list->buflen]), + bss_info_le, bi_length); + list->version = le32_to_cpu(bss_info_le->version); + list->buflen += bi_length; + list->count++; + } else { + cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE; + if (brcmf_p2p_scan_finding_common_channel(cfg, NULL)) + goto exit; + if (cfg->scan_request) { + brcmf_inform_bss(cfg); + aborted = status != BRCMF_E_STATUS_SUCCESS; + brcmf_notify_escan_complete(cfg, ifp, aborted, false); + } else + brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n", + status); + } +exit: + return 0; +} + +static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg) +{ + brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT, + brcmf_cfg80211_escan_handler); + cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE; + /* Init scan_timeout timer */ + init_timer(&cfg->escan_timeout); + cfg->escan_timeout.data = (unsigned long) cfg; + cfg->escan_timeout.function = brcmf_escan_timeout; + INIT_WORK(&cfg->escan_timeout_work, + brcmf_cfg80211_escan_timeout_worker); +} + +static __always_inline void brcmf_delay(u32 ms) +{ + if (ms < 1000 / HZ) { + cond_resched(); + mdelay(ms); + } else { + msleep(ms); + } +} + +static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4], + u8 *pattern, u32 patternsize, u8 *mask, + u32 packet_offset) +{ + struct brcmf_fil_wowl_pattern_le *filter; + u32 masksize; + u32 patternoffset; + u8 *buf; + u32 bufsize; + s32 ret; + + masksize = (patternsize + 7) / 8; + patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize; + + bufsize = sizeof(*filter) + patternsize + masksize; + buf = kzalloc(bufsize, GFP_KERNEL); + if (!buf) + return -ENOMEM; + filter = (struct brcmf_fil_wowl_pattern_le *)buf; + + memcpy(filter->cmd, cmd, 4); + filter->masksize = cpu_to_le32(masksize); + filter->offset = cpu_to_le32(packet_offset); + filter->patternoffset = cpu_to_le32(patternoffset); + filter->patternsize = cpu_to_le32(patternsize); + filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP); + + if ((mask) && (masksize)) + memcpy(buf + sizeof(*filter), mask, masksize); + if ((pattern) && (patternsize)) + memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize); + + ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize); + + kfree(buf); + return ret; +} + +static s32 brcmf_cfg80211_resume(struct wiphy *wiphy) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct net_device *ndev = cfg_to_ndev(cfg); + struct brcmf_if *ifp = netdev_priv(ndev); + + brcmf_dbg(TRACE, "Enter\n"); + + if (cfg->wowl_enabled) { + brcmf_configure_arp_offload(ifp, true); + brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, + cfg->pre_wowl_pmmode); + brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0); + brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0); + cfg->wowl_enabled = false; + } + return 0; +} + +static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg, + struct brcmf_if *ifp, + struct cfg80211_wowlan *wowl) +{ + u32 wowl_config; + u32 i; + + brcmf_dbg(TRACE, "Suspend, wowl config.\n"); + + brcmf_configure_arp_offload(ifp, false); + brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode); + brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX); + + wowl_config = 0; + if (wowl->disconnect) + wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR; + if (wowl->magic_pkt) + wowl_config |= BRCMF_WOWL_MAGIC; + if ((wowl->patterns) && (wowl->n_patterns)) { + wowl_config |= BRCMF_WOWL_NET; + for (i = 0; i < wowl->n_patterns; i++) { + brcmf_config_wowl_pattern(ifp, "add", + (u8 *)wowl->patterns[i].pattern, + wowl->patterns[i].pattern_len, + (u8 *)wowl->patterns[i].mask, + wowl->patterns[i].pkt_offset); + } + } + brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config); + brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1); + brcmf_bus_wowl_config(cfg->pub->bus_if, true); + cfg->wowl_enabled = true; +} + +static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy, + struct cfg80211_wowlan *wowl) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct net_device *ndev = cfg_to_ndev(cfg); + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_vif *vif; + + brcmf_dbg(TRACE, "Enter\n"); + + /* if the primary net_device is not READY there is nothing + * we can do but pray resume goes smoothly. + */ + if (!check_vif_up(ifp->vif)) + goto exit; + + /* end any scanning */ + if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) + brcmf_abort_scanning(cfg); + + if (wowl == NULL) { + brcmf_bus_wowl_config(cfg->pub->bus_if, false); + list_for_each_entry(vif, &cfg->vif_list, list) { + if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) + continue; + /* While going to suspend if associated with AP + * disassociate from AP to save power while system is + * in suspended state + */ + brcmf_link_down(vif, WLAN_REASON_UNSPECIFIED); + /* Make sure WPA_Supplicant receives all the event + * generated due to DISASSOC call to the fw to keep + * the state fw and WPA_Supplicant state consistent + */ + brcmf_delay(500); + } + /* Configure MPC */ + brcmf_set_mpc(ifp, 1); + + } else { + /* Configure WOWL paramaters */ + brcmf_configure_wowl(cfg, ifp, wowl); + } + +exit: + brcmf_dbg(TRACE, "Exit\n"); + /* clear any scanning activity */ + cfg->scan_status = 0; + return 0; +} + +static __used s32 +brcmf_update_pmklist(struct net_device *ndev, + struct brcmf_cfg80211_pmk_list *pmk_list, s32 err) +{ + int i, j; + u32 pmkid_len; + + pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid); + + brcmf_dbg(CONN, "No of elements %d\n", pmkid_len); + for (i = 0; i < pmkid_len; i++) { + brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i, + &pmk_list->pmkids.pmkid[i].BSSID); + for (j = 0; j < WLAN_PMKID_LEN; j++) + brcmf_dbg(CONN, "%02x\n", + pmk_list->pmkids.pmkid[i].PMKID[j]); + } + + if (!err) + brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info", + (char *)pmk_list, sizeof(*pmk_list)); + + return err; +} + +static s32 +brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_pmksa *pmksa) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = netdev_priv(ndev); + struct pmkid_list *pmkids = &cfg->pmk_list->pmkids; + s32 err = 0; + u32 pmkid_len, i; + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + pmkid_len = le32_to_cpu(pmkids->npmkid); + for (i = 0; i < pmkid_len; i++) + if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN)) + break; + if (i < WL_NUM_PMKIDS_MAX) { + memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN); + memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN); + if (i == pmkid_len) { + pmkid_len++; + pmkids->npmkid = cpu_to_le32(pmkid_len); + } + } else + err = -EINVAL; + + brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n", + pmkids->pmkid[pmkid_len].BSSID); + for (i = 0; i < WLAN_PMKID_LEN; i++) + brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]); + + err = brcmf_update_pmklist(ndev, cfg->pmk_list, err); + + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_pmksa *pmksa) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = netdev_priv(ndev); + struct pmkid_list pmkid; + s32 err = 0; + u32 pmkid_len, i; + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN); + memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN); + + brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n", + &pmkid.pmkid[0].BSSID); + for (i = 0; i < WLAN_PMKID_LEN; i++) + brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]); + + pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid); + for (i = 0; i < pmkid_len; i++) + if (!memcmp + (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID, + ETH_ALEN)) + break; + + if ((pmkid_len > 0) + && (i < pmkid_len)) { + memset(&cfg->pmk_list->pmkids.pmkid[i], 0, + sizeof(struct pmkid)); + for (; i < (pmkid_len - 1); i++) { + memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID, + &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID, + ETH_ALEN); + memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID, + &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID, + WLAN_PMKID_LEN); + } + cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1); + } else + err = -EINVAL; + + err = brcmf_update_pmklist(ndev, cfg->pmk_list, err); + + brcmf_dbg(TRACE, "Exit\n"); + return err; + +} + +static s32 +brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = netdev_priv(ndev); + s32 err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + if (!check_vif_up(ifp->vif)) + return -EIO; + + memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list)); + err = brcmf_update_pmklist(ndev, cfg->pmk_list, err); + + brcmf_dbg(TRACE, "Exit\n"); + return err; + +} + +/* + * PFN result doesn't have all the info which are + * required by the supplicant + * (For e.g IEs) Do a target Escan so that sched scan results are reported + * via wl_inform_single_bss in the required format. Escan does require the + * scan request in the form of cfg80211_scan_request. For timebeing, create + * cfg80211_scan_request one out of the received PNO event. + */ +static s32 +brcmf_notify_sched_scan_results(struct brcmf_if *ifp, + const struct brcmf_event_msg *e, void *data) +{ + struct brcmf_cfg80211_info *cfg = ifp->drvr->config; + struct brcmf_pno_net_info_le *netinfo, *netinfo_start; + struct cfg80211_scan_request *request = NULL; + struct cfg80211_ssid *ssid = NULL; + struct ieee80211_channel *channel = NULL; + struct wiphy *wiphy = cfg_to_wiphy(cfg); + int err = 0; + int channel_req = 0; + int band = 0; + struct brcmf_pno_scanresults_le *pfn_result; + u32 result_count; + u32 status; + + brcmf_dbg(SCAN, "Enter\n"); + + if (e->event_code == BRCMF_E_PFN_NET_LOST) { + brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n"); + return 0; + } + + pfn_result = (struct brcmf_pno_scanresults_le *)data; + result_count = le32_to_cpu(pfn_result->count); + status = le32_to_cpu(pfn_result->status); + + /* + * PFN event is limited to fit 512 bytes so we may get + * multiple NET_FOUND events. For now place a warning here. + */ + WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE); + brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count); + if (result_count > 0) { + int i; + + request = kzalloc(sizeof(*request), GFP_KERNEL); + ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL); + channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL); + if (!request || !ssid || !channel) { + err = -ENOMEM; + goto out_err; + } + + request->wiphy = wiphy; + data += sizeof(struct brcmf_pno_scanresults_le); + netinfo_start = (struct brcmf_pno_net_info_le *)data; + + for (i = 0; i < result_count; i++) { + netinfo = &netinfo_start[i]; + if (!netinfo) { + brcmf_err("Invalid netinfo ptr. index: %d\n", + i); + err = -EINVAL; + goto out_err; + } + + brcmf_dbg(SCAN, "SSID:%s Channel:%d\n", + netinfo->SSID, netinfo->channel); + memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len); + ssid[i].ssid_len = netinfo->SSID_len; + request->n_ssids++; + + channel_req = netinfo->channel; + if (channel_req <= CH_MAX_2G_CHANNEL) + band = NL80211_BAND_2GHZ; + else + band = NL80211_BAND_5GHZ; + channel[i].center_freq = + ieee80211_channel_to_frequency(channel_req, + band); + channel[i].band = band; + channel[i].flags |= IEEE80211_CHAN_NO_HT40; + request->channels[i] = &channel[i]; + request->n_channels++; + } + + /* assign parsed ssid array */ + if (request->n_ssids) + request->ssids = &ssid[0]; + + if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { + /* Abort any on-going scan */ + brcmf_abort_scanning(cfg); + } + + set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); + cfg->escan_info.run = brcmf_run_escan; + err = brcmf_do_escan(cfg, wiphy, ifp, request); + if (err) { + clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); + goto out_err; + } + cfg->sched_escan = true; + cfg->scan_request = request; + } else { + brcmf_err("FALSE PNO Event. (pfn_count == 0)\n"); + goto out_err; + } + + kfree(ssid); + kfree(channel); + kfree(request); + return 0; + +out_err: + kfree(ssid); + kfree(channel); + kfree(request); + cfg80211_sched_scan_stopped(wiphy); + return err; +} + +static int brcmf_dev_pno_clean(struct net_device *ndev) +{ + int ret; + + /* Disable pfn */ + ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0); + if (ret == 0) { + /* clear pfn */ + ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear", + NULL, 0); + } + if (ret < 0) + brcmf_err("failed code %d\n", ret); + + return ret; +} + +static int brcmf_dev_pno_config(struct net_device *ndev) +{ + struct brcmf_pno_param_le pfn_param; + + memset(&pfn_param, 0, sizeof(pfn_param)); + pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION); + + /* set extra pno params */ + pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT); + pfn_param.repeat = BRCMF_PNO_REPEAT; + pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX; + + /* set up pno scan fr */ + pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME); + + return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set", + &pfn_param, sizeof(pfn_param)); +} + +static int +brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy, + struct net_device *ndev, + struct cfg80211_sched_scan_request *request) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct brcmf_pno_net_param_le pfn; + int i; + int ret = 0; + + brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n", + request->n_match_sets, request->n_ssids); + if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { + brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status); + return -EAGAIN; + } + if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) { + brcmf_err("Scanning suppressed: status (%lu)\n", + cfg->scan_status); + return -EAGAIN; + } + + if (!request->n_ssids || !request->n_match_sets) { + brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n", + request->n_ssids); + return -EINVAL; + } + + if (request->n_ssids > 0) { + for (i = 0; i < request->n_ssids; i++) { + /* Active scan req for ssids */ + brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n", + request->ssids[i].ssid); + + /* + * match_set ssids is a supert set of n_ssid list, + * so we need not add these set seperately. + */ + } + } + + if (request->n_match_sets > 0) { + /* clean up everything */ + ret = brcmf_dev_pno_clean(ndev); + if (ret < 0) { + brcmf_err("failed error=%d\n", ret); + return ret; + } + + /* configure pno */ + ret = brcmf_dev_pno_config(ndev); + if (ret < 0) { + brcmf_err("PNO setup failed!! ret=%d\n", ret); + return -EINVAL; + } + + /* configure each match set */ + for (i = 0; i < request->n_match_sets; i++) { + struct cfg80211_ssid *ssid; + u32 ssid_len; + + ssid = &request->match_sets[i].ssid; + ssid_len = ssid->ssid_len; + + if (!ssid_len) { + brcmf_err("skip broadcast ssid\n"); + continue; + } + pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN); + pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY); + pfn.wsec = cpu_to_le32(0); + pfn.infra = cpu_to_le32(1); + pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT); + pfn.ssid.SSID_len = cpu_to_le32(ssid_len); + memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len); + ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn, + sizeof(pfn)); + brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n", + ret == 0 ? "set" : "failed", ssid->ssid); + } + /* Enable the PNO */ + if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) { + brcmf_err("PNO enable failed!! ret=%d\n", ret); + return -EINVAL; + } + } else { + return -EINVAL; + } + + return 0; +} + +static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy, + struct net_device *ndev) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + + brcmf_dbg(SCAN, "enter\n"); + brcmf_dev_pno_clean(ndev); + if (cfg->sched_escan) + brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true); + return 0; +} + +static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp) +{ + s32 err; + + /* set auth */ + err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0); + if (err < 0) { + brcmf_err("auth error %d\n", err); + return err; + } + /* set wsec */ + err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0); + if (err < 0) { + brcmf_err("wsec error %d\n", err); + return err; + } + /* set upper-layer auth */ + err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE); + if (err < 0) { + brcmf_err("wpa_auth error %d\n", err); + return err; + } + + return 0; +} + +static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie) +{ + if (is_rsn_ie) + return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0); + + return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0); +} + +static s32 +brcmf_configure_wpaie(struct brcmf_if *ifp, + const struct brcmf_vs_tlv *wpa_ie, + bool is_rsn_ie) +{ + u32 auth = 0; /* d11 open authentication */ + u16 count; + s32 err = 0; + s32 len = 0; + u32 i; + u32 wsec; + u32 pval = 0; + u32 gval = 0; + u32 wpa_auth = 0; + u32 offset; + u8 *data; + u16 rsn_cap; + u32 wme_bss_disable; + + brcmf_dbg(TRACE, "Enter\n"); + if (wpa_ie == NULL) + goto exit; + + len = wpa_ie->len + TLV_HDR_LEN; + data = (u8 *)wpa_ie; + offset = TLV_HDR_LEN; + if (!is_rsn_ie) + offset += VS_IE_FIXED_HDR_LEN; + else + offset += WPA_IE_VERSION_LEN; + + /* check for multicast cipher suite */ + if (offset + WPA_IE_MIN_OUI_LEN > len) { + err = -EINVAL; + brcmf_err("no multicast cipher suite\n"); + goto exit; + } + + if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { + err = -EINVAL; + brcmf_err("ivalid OUI\n"); + goto exit; + } + offset += TLV_OUI_LEN; + + /* pick up multicast cipher */ + switch (data[offset]) { + case WPA_CIPHER_NONE: + gval = 0; + break; + case WPA_CIPHER_WEP_40: + case WPA_CIPHER_WEP_104: + gval = WEP_ENABLED; + break; + case WPA_CIPHER_TKIP: + gval = TKIP_ENABLED; + break; + case WPA_CIPHER_AES_CCM: + gval = AES_ENABLED; + break; + default: + err = -EINVAL; + brcmf_err("Invalid multi cast cipher info\n"); + goto exit; + } + + offset++; + /* walk thru unicast cipher list and pick up what we recognize */ + count = data[offset] + (data[offset + 1] << 8); + offset += WPA_IE_SUITE_COUNT_LEN; + /* Check for unicast suite(s) */ + if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { + err = -EINVAL; + brcmf_err("no unicast cipher suite\n"); + goto exit; + } + for (i = 0; i < count; i++) { + if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { + err = -EINVAL; + brcmf_err("ivalid OUI\n"); + goto exit; + } + offset += TLV_OUI_LEN; + switch (data[offset]) { + case WPA_CIPHER_NONE: + break; + case WPA_CIPHER_WEP_40: + case WPA_CIPHER_WEP_104: + pval |= WEP_ENABLED; + break; + case WPA_CIPHER_TKIP: + pval |= TKIP_ENABLED; + break; + case WPA_CIPHER_AES_CCM: + pval |= AES_ENABLED; + break; + default: + brcmf_err("Ivalid unicast security info\n"); + } + offset++; + } + /* walk thru auth management suite list and pick up what we recognize */ + count = data[offset] + (data[offset + 1] << 8); + offset += WPA_IE_SUITE_COUNT_LEN; + /* Check for auth key management suite(s) */ + if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { + err = -EINVAL; + brcmf_err("no auth key mgmt suite\n"); + goto exit; + } + for (i = 0; i < count; i++) { + if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { + err = -EINVAL; + brcmf_err("ivalid OUI\n"); + goto exit; + } + offset += TLV_OUI_LEN; + switch (data[offset]) { + case RSN_AKM_NONE: + brcmf_dbg(TRACE, "RSN_AKM_NONE\n"); + wpa_auth |= WPA_AUTH_NONE; + break; + case RSN_AKM_UNSPECIFIED: + brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n"); + is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) : + (wpa_auth |= WPA_AUTH_UNSPECIFIED); + break; + case RSN_AKM_PSK: + brcmf_dbg(TRACE, "RSN_AKM_PSK\n"); + is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) : + (wpa_auth |= WPA_AUTH_PSK); + break; + default: + brcmf_err("Ivalid key mgmt info\n"); + } + offset++; + } + + if (is_rsn_ie) { + wme_bss_disable = 1; + if ((offset + RSN_CAP_LEN) <= len) { + rsn_cap = data[offset] + (data[offset + 1] << 8); + if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK) + wme_bss_disable = 0; + } + /* set wme_bss_disable to sync RSN Capabilities */ + err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable", + wme_bss_disable); + if (err < 0) { + brcmf_err("wme_bss_disable error %d\n", err); + goto exit; + } + } + /* FOR WPS , set SES_OW_ENABLED */ + wsec = (pval | gval | SES_OW_ENABLED); + + /* set auth */ + err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth); + if (err < 0) { + brcmf_err("auth error %d\n", err); + goto exit; + } + /* set wsec */ + err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); + if (err < 0) { + brcmf_err("wsec error %d\n", err); + goto exit; + } + /* set upper-layer auth */ + err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth); + if (err < 0) { + brcmf_err("wpa_auth error %d\n", err); + goto exit; + } + +exit: + return err; +} + +static s32 +brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len, + struct parsed_vndr_ies *vndr_ies) +{ + struct brcmf_vs_tlv *vndrie; + struct brcmf_tlv *ie; + struct parsed_vndr_ie_info *parsed_info; + s32 remaining_len; + + remaining_len = (s32)vndr_ie_len; + memset(vndr_ies, 0, sizeof(*vndr_ies)); + + ie = (struct brcmf_tlv *)vndr_ie_buf; + while (ie) { + if (ie->id != WLAN_EID_VENDOR_SPECIFIC) + goto next; + vndrie = (struct brcmf_vs_tlv *)ie; + /* len should be bigger than OUI length + one */ + if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) { + brcmf_err("invalid vndr ie. length is too small %d\n", + vndrie->len); + goto next; + } + /* if wpa or wme ie, do not add ie */ + if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) && + ((vndrie->oui_type == WPA_OUI_TYPE) || + (vndrie->oui_type == WME_OUI_TYPE))) { + brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n"); + goto next; + } + + parsed_info = &vndr_ies->ie_info[vndr_ies->count]; + + /* save vndr ie information */ + parsed_info->ie_ptr = (char *)vndrie; + parsed_info->ie_len = vndrie->len + TLV_HDR_LEN; + memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie)); + + vndr_ies->count++; + + brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n", + parsed_info->vndrie.oui[0], + parsed_info->vndrie.oui[1], + parsed_info->vndrie.oui[2], + parsed_info->vndrie.oui_type); + + if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT) + break; +next: + remaining_len -= (ie->len + TLV_HDR_LEN); + if (remaining_len <= TLV_HDR_LEN) + ie = NULL; + else + ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len + + TLV_HDR_LEN); + } + return 0; +} + +static u32 +brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd) +{ + + strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1); + iebuf[VNDR_IE_CMD_LEN - 1] = '\0'; + + put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]); + + put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]); + + memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len); + + return ie_len + VNDR_IE_HDR_SIZE; +} + +s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag, + const u8 *vndr_ie_buf, u32 vndr_ie_len) +{ + struct brcmf_if *ifp; + struct vif_saved_ie *saved_ie; + s32 err = 0; + u8 *iovar_ie_buf; + u8 *curr_ie_buf; + u8 *mgmt_ie_buf = NULL; + int mgmt_ie_buf_len; + u32 *mgmt_ie_len; + u32 del_add_ie_buf_len = 0; + u32 total_ie_buf_len = 0; + u32 parsed_ie_buf_len = 0; + struct parsed_vndr_ies old_vndr_ies; + struct parsed_vndr_ies new_vndr_ies; + struct parsed_vndr_ie_info *vndrie_info; + s32 i; + u8 *ptr; + int remained_buf_len; + + if (!vif) + return -ENODEV; + ifp = vif->ifp; + saved_ie = &vif->saved_ie; + + brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag); + iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); + if (!iovar_ie_buf) + return -ENOMEM; + curr_ie_buf = iovar_ie_buf; + switch (pktflag) { + case BRCMF_VNDR_IE_PRBREQ_FLAG: + mgmt_ie_buf = saved_ie->probe_req_ie; + mgmt_ie_len = &saved_ie->probe_req_ie_len; + mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie); + break; + case BRCMF_VNDR_IE_PRBRSP_FLAG: + mgmt_ie_buf = saved_ie->probe_res_ie; + mgmt_ie_len = &saved_ie->probe_res_ie_len; + mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie); + break; + case BRCMF_VNDR_IE_BEACON_FLAG: + mgmt_ie_buf = saved_ie->beacon_ie; + mgmt_ie_len = &saved_ie->beacon_ie_len; + mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie); + break; + case BRCMF_VNDR_IE_ASSOCREQ_FLAG: + mgmt_ie_buf = saved_ie->assoc_req_ie; + mgmt_ie_len = &saved_ie->assoc_req_ie_len; + mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie); + break; + default: + err = -EPERM; + brcmf_err("not suitable type\n"); + goto exit; + } + + if (vndr_ie_len > mgmt_ie_buf_len) { + err = -ENOMEM; + brcmf_err("extra IE size too big\n"); + goto exit; + } + + /* parse and save new vndr_ie in curr_ie_buff before comparing it */ + if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) { + ptr = curr_ie_buf; + brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies); + for (i = 0; i < new_vndr_ies.count; i++) { + vndrie_info = &new_vndr_ies.ie_info[i]; + memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr, + vndrie_info->ie_len); + parsed_ie_buf_len += vndrie_info->ie_len; + } + } + + if (mgmt_ie_buf && *mgmt_ie_len) { + if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) && + (memcmp(mgmt_ie_buf, curr_ie_buf, + parsed_ie_buf_len) == 0)) { + brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n"); + goto exit; + } + + /* parse old vndr_ie */ + brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies); + + /* make a command to delete old ie */ + for (i = 0; i < old_vndr_ies.count; i++) { + vndrie_info = &old_vndr_ies.ie_info[i]; + + brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n", + vndrie_info->vndrie.id, + vndrie_info->vndrie.len, + vndrie_info->vndrie.oui[0], + vndrie_info->vndrie.oui[1], + vndrie_info->vndrie.oui[2]); + + del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, + vndrie_info->ie_ptr, + vndrie_info->ie_len, + "del"); + curr_ie_buf += del_add_ie_buf_len; + total_ie_buf_len += del_add_ie_buf_len; + } + } + + *mgmt_ie_len = 0; + /* Add if there is any extra IE */ + if (mgmt_ie_buf && parsed_ie_buf_len) { + ptr = mgmt_ie_buf; + + remained_buf_len = mgmt_ie_buf_len; + + /* make a command to add new ie */ + for (i = 0; i < new_vndr_ies.count; i++) { + vndrie_info = &new_vndr_ies.ie_info[i]; + + /* verify remained buf size before copy data */ + if (remained_buf_len < (vndrie_info->vndrie.len + + VNDR_IE_VSIE_OFFSET)) { + brcmf_err("no space in mgmt_ie_buf: len left %d", + remained_buf_len); + break; + } + remained_buf_len -= (vndrie_info->ie_len + + VNDR_IE_VSIE_OFFSET); + + brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n", + vndrie_info->vndrie.id, + vndrie_info->vndrie.len, + vndrie_info->vndrie.oui[0], + vndrie_info->vndrie.oui[1], + vndrie_info->vndrie.oui[2]); + + del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, + vndrie_info->ie_ptr, + vndrie_info->ie_len, + "add"); + + /* save the parsed IE in wl struct */ + memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr, + vndrie_info->ie_len); + *mgmt_ie_len += vndrie_info->ie_len; + + curr_ie_buf += del_add_ie_buf_len; + total_ie_buf_len += del_add_ie_buf_len; + } + } + if (total_ie_buf_len) { + err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf, + total_ie_buf_len); + if (err) + brcmf_err("vndr ie set error : %d\n", err); + } + +exit: + kfree(iovar_ie_buf); + return err; +} + +s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif) +{ + s32 pktflags[] = { + BRCMF_VNDR_IE_PRBREQ_FLAG, + BRCMF_VNDR_IE_PRBRSP_FLAG, + BRCMF_VNDR_IE_BEACON_FLAG + }; + int i; + + for (i = 0; i < ARRAY_SIZE(pktflags); i++) + brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0); + + memset(&vif->saved_ie, 0, sizeof(vif->saved_ie)); + return 0; +} + +static s32 +brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif, + struct cfg80211_beacon_data *beacon) +{ + s32 err; + + /* Set Beacon IEs to FW */ + err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG, + beacon->tail, beacon->tail_len); + if (err) { + brcmf_err("Set Beacon IE Failed\n"); + return err; + } + brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n"); + + /* Set Probe Response IEs to FW */ + err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG, + beacon->proberesp_ies, + beacon->proberesp_ies_len); + if (err) + brcmf_err("Set Probe Resp IE Failed\n"); + else + brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n"); + + return err; +} + +static s32 +brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_ap_settings *settings) +{ + s32 ie_offset; + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = netdev_priv(ndev); + const struct brcmf_tlv *ssid_ie; + const struct brcmf_tlv *country_ie; + struct brcmf_ssid_le ssid_le; + s32 err = -EPERM; + const struct brcmf_tlv *rsn_ie; + const struct brcmf_vs_tlv *wpa_ie; + struct brcmf_join_params join_params; + enum nl80211_iftype dev_role; + struct brcmf_fil_bss_enable_le bss_enable; + u16 chanspec; + bool mbss; + int is_11d; + + brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n", + settings->chandef.chan->hw_value, + settings->chandef.center_freq1, settings->chandef.width, + settings->beacon_interval, settings->dtim_period); + brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n", + settings->ssid, settings->ssid_len, settings->auth_type, + settings->inactivity_timeout); + dev_role = ifp->vif->wdev.iftype; + mbss = ifp->vif->mbss; + + /* store current 11d setting */ + brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, &ifp->vif->is_11d); + country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, + settings->beacon.tail_len, + WLAN_EID_COUNTRY); + is_11d = country_ie ? 1 : 0; + + memset(&ssid_le, 0, sizeof(ssid_le)); + if (settings->ssid == NULL || settings->ssid_len == 0) { + ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN; + ssid_ie = brcmf_parse_tlvs( + (u8 *)&settings->beacon.head[ie_offset], + settings->beacon.head_len - ie_offset, + WLAN_EID_SSID); + if (!ssid_ie) + return -EINVAL; + + memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len); + ssid_le.SSID_len = cpu_to_le32(ssid_ie->len); + brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID); + } else { + memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len); + ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len); + } + + if (!mbss) { + brcmf_set_mpc(ifp, 0); + brcmf_configure_arp_offload(ifp, false); + } + + /* find the RSN_IE */ + rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, + settings->beacon.tail_len, WLAN_EID_RSN); + + /* find the WPA_IE */ + wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail, + settings->beacon.tail_len); + + if ((wpa_ie != NULL || rsn_ie != NULL)) { + brcmf_dbg(TRACE, "WPA(2) IE is found\n"); + if (wpa_ie != NULL) { + /* WPA IE */ + err = brcmf_configure_wpaie(ifp, wpa_ie, false); + if (err < 0) + goto exit; + } else { + struct brcmf_vs_tlv *tmp_ie; + + tmp_ie = (struct brcmf_vs_tlv *)rsn_ie; + + /* RSN IE */ + err = brcmf_configure_wpaie(ifp, tmp_ie, true); + if (err < 0) + goto exit; + } + } else { + brcmf_dbg(TRACE, "No WPA(2) IEs found\n"); + brcmf_configure_opensecurity(ifp); + } + + brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon); + + if (!mbss) { + chanspec = chandef_to_chanspec(&cfg->d11inf, + &settings->chandef); + err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); + if (err < 0) { + brcmf_err("Set Channel failed: chspec=%d, %d\n", + chanspec, err); + goto exit; + } + + if (is_11d != ifp->vif->is_11d) { + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, + is_11d); + if (err < 0) { + brcmf_err("Regulatory Set Error, %d\n", err); + goto exit; + } + } + if (settings->beacon_interval) { + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, + settings->beacon_interval); + if (err < 0) { + brcmf_err("Beacon Interval Set Error, %d\n", + err); + goto exit; + } + } + if (settings->dtim_period) { + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD, + settings->dtim_period); + if (err < 0) { + brcmf_err("DTIM Interval Set Error, %d\n", err); + goto exit; + } + } + + if (dev_role == NL80211_IFTYPE_AP) { + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); + if (err < 0) { + brcmf_err("BRCMF_C_DOWN error %d\n", err); + goto exit; + } + brcmf_fil_iovar_int_set(ifp, "apsta", 0); + } + + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1); + if (err < 0) { + brcmf_err("SET INFRA error %d\n", err); + goto exit; + } + } else if (WARN_ON(is_11d != ifp->vif->is_11d)) { + /* Multiple-BSS should use same 11d configuration */ + err = -EINVAL; + goto exit; + } + if (dev_role == NL80211_IFTYPE_AP) { + if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss)) + brcmf_fil_iovar_int_set(ifp, "mbss", 1); + + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1); + if (err < 0) { + brcmf_err("setting AP mode failed %d\n", err); + goto exit; + } + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); + if (err < 0) { + brcmf_err("BRCMF_C_UP error (%d)\n", err); + goto exit; + } + /* On DOWN the firmware removes the WEP keys, reconfigure + * them if they were set. + */ + brcmf_cfg80211_reconfigure_wep(ifp); + + memset(&join_params, 0, sizeof(join_params)); + /* join parameters starts with ssid */ + memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le)); + /* create softap */ + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, + &join_params, sizeof(join_params)); + if (err < 0) { + brcmf_err("SET SSID error (%d)\n", err); + goto exit; + } + brcmf_dbg(TRACE, "AP mode configuration complete\n"); + } else { + err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le, + sizeof(ssid_le)); + if (err < 0) { + brcmf_err("setting ssid failed %d\n", err); + goto exit; + } + bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx); + bss_enable.enable = cpu_to_le32(1); + err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, + sizeof(bss_enable)); + if (err < 0) { + brcmf_err("bss_enable config failed %d\n", err); + goto exit; + } + + brcmf_dbg(TRACE, "GO mode configuration complete\n"); + } + clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state); + set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); + +exit: + if ((err) && (!mbss)) { + brcmf_set_mpc(ifp, 1); + brcmf_configure_arp_offload(ifp, true); + } + return err; +} + +static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + s32 err; + struct brcmf_fil_bss_enable_le bss_enable; + struct brcmf_join_params join_params; + + brcmf_dbg(TRACE, "Enter\n"); + + if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) { + /* Due to most likely deauths outstanding we sleep */ + /* first to make sure they get processed by fw. */ + msleep(400); + + if (ifp->vif->mbss) { + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); + return err; + } + + memset(&join_params, 0, sizeof(join_params)); + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, + &join_params, sizeof(join_params)); + if (err < 0) + brcmf_err("SET SSID error (%d)\n", err); + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); + if (err < 0) + brcmf_err("BRCMF_C_DOWN error %d\n", err); + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0); + if (err < 0) + brcmf_err("setting AP mode failed %d\n", err); + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0); + if (err < 0) + brcmf_err("setting INFRA mode failed %d\n", err); + if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) + brcmf_fil_iovar_int_set(ifp, "mbss", 0); + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, + ifp->vif->is_11d); + if (err < 0) + brcmf_err("restoring REGULATORY setting failed %d\n", + err); + /* Bring device back up so it can be used again */ + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); + if (err < 0) + brcmf_err("BRCMF_C_UP error %d\n", err); + } else { + bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx); + bss_enable.enable = cpu_to_le32(0); + err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, + sizeof(bss_enable)); + if (err < 0) + brcmf_err("bss_enable config failed %d\n", err); + } + brcmf_set_mpc(ifp, 1); + brcmf_configure_arp_offload(ifp, true); + set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state); + clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); + + return err; +} + +static s32 +brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_beacon_data *info) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + s32 err; + + brcmf_dbg(TRACE, "Enter\n"); + + err = brcmf_config_ap_mgmt_ie(ifp->vif, info); + + return err; +} + +static int +brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev, + struct station_del_parameters *params) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_scb_val_le scbval; + struct brcmf_if *ifp = netdev_priv(ndev); + s32 err; + + if (!params->mac) + return -EFAULT; + + brcmf_dbg(TRACE, "Enter %pM\n", params->mac); + + if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) + ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; + if (!check_vif_up(ifp->vif)) + return -EIO; + + memcpy(&scbval.ea, params->mac, ETH_ALEN); + scbval.val = cpu_to_le32(params->reason_code); + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON, + &scbval, sizeof(scbval)); + if (err) + brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err); + + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static int +brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev, + const u8 *mac, struct station_parameters *params) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + s32 err; + + brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac, + params->sta_flags_mask, params->sta_flags_set); + + /* Ignore all 00 MAC */ + if (is_zero_ether_addr(mac)) + return 0; + + if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) + return 0; + + if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE, + (void *)mac, ETH_ALEN); + else + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE, + (void *)mac, ETH_ALEN); + if (err < 0) + brcmf_err("Setting SCB (de-)authorize failed, %d\n", err); + + return err; +} + +static void +brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy, + struct wireless_dev *wdev, + u16 frame_type, bool reg) +{ + struct brcmf_cfg80211_vif *vif; + u16 mgmt_type; + + brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg); + + mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; + vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); + if (reg) + vif->mgmt_rx_reg |= BIT(mgmt_type); + else + vif->mgmt_rx_reg &= ~BIT(mgmt_type); +} + + +static int +brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, + struct cfg80211_mgmt_tx_params *params, u64 *cookie) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct ieee80211_channel *chan = params->chan; + const u8 *buf = params->buf; + size_t len = params->len; + const struct ieee80211_mgmt *mgmt; + struct brcmf_cfg80211_vif *vif; + s32 err = 0; + s32 ie_offset; + s32 ie_len; + struct brcmf_fil_action_frame_le *action_frame; + struct brcmf_fil_af_params_le *af_params; + bool ack; + s32 chan_nr; + u32 freq; + + brcmf_dbg(TRACE, "Enter\n"); + + *cookie = 0; + + mgmt = (const struct ieee80211_mgmt *)buf; + + if (!ieee80211_is_mgmt(mgmt->frame_control)) { + brcmf_err("Driver only allows MGMT packet type\n"); + return -EPERM; + } + + vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); + + if (ieee80211_is_probe_resp(mgmt->frame_control)) { + /* Right now the only reason to get a probe response */ + /* is for p2p listen response or for p2p GO from */ + /* wpa_supplicant. Unfortunately the probe is send */ + /* on primary ndev, while dongle wants it on the p2p */ + /* vif. Since this is only reason for a probe */ + /* response to be sent, the vif is taken from cfg. */ + /* If ever desired to send proberesp for non p2p */ + /* response then data should be checked for */ + /* "DIRECT-". Note in future supplicant will take */ + /* dedicated p2p wdev to do this and then this 'hack'*/ + /* is not needed anymore. */ + ie_offset = DOT11_MGMT_HDR_LEN + + DOT11_BCN_PRB_FIXED_LEN; + ie_len = len - ie_offset; + if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) + vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; + err = brcmf_vif_set_mgmt_ie(vif, + BRCMF_VNDR_IE_PRBRSP_FLAG, + &buf[ie_offset], + ie_len); + cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, + GFP_KERNEL); + } else if (ieee80211_is_action(mgmt->frame_control)) { + af_params = kzalloc(sizeof(*af_params), GFP_KERNEL); + if (af_params == NULL) { + brcmf_err("unable to allocate frame\n"); + err = -ENOMEM; + goto exit; + } + action_frame = &af_params->action_frame; + /* Add the packet Id */ + action_frame->packet_id = cpu_to_le32(*cookie); + /* Add BSSID */ + memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN); + memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN); + /* Add the length exepted for 802.11 header */ + action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN); + /* Add the channel. Use the one specified as parameter if any or + * the current one (got from the firmware) otherwise + */ + if (chan) + freq = chan->center_freq; + else + brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL, + &freq); + chan_nr = ieee80211_frequency_to_channel(freq); + af_params->channel = cpu_to_le32(chan_nr); + + memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN], + le16_to_cpu(action_frame->len)); + + brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n", + *cookie, le16_to_cpu(action_frame->len), freq); + + ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg), + af_params); + + cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack, + GFP_KERNEL); + kfree(af_params); + } else { + brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control); + brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len); + } + +exit: + return err; +} + + +static int +brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, + struct wireless_dev *wdev, + u64 cookie) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_cfg80211_vif *vif; + int err = 0; + + brcmf_dbg(TRACE, "Enter p2p listen cancel\n"); + + vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; + if (vif == NULL) { + brcmf_err("No p2p device available for probe response\n"); + err = -ENODEV; + goto exit; + } + brcmf_p2p_cancel_remain_on_channel(vif->ifp); +exit: + return err; +} + +static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy, + struct wireless_dev *wdev, + enum nl80211_crit_proto_id proto, + u16 duration) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_cfg80211_vif *vif; + + vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); + + /* only DHCP support for now */ + if (proto != NL80211_CRIT_PROTO_DHCP) + return -EINVAL; + + /* suppress and abort scanning */ + set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); + brcmf_abort_scanning(cfg); + + return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration); +} + +static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy, + struct wireless_dev *wdev) +{ + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_cfg80211_vif *vif; + + vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); + + brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0); + clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); +} + +static s32 +brcmf_notify_tdls_peer_event(struct brcmf_if *ifp, + const struct brcmf_event_msg *e, void *data) +{ + switch (e->reason) { + case BRCMF_E_REASON_TDLS_PEER_DISCOVERED: + brcmf_dbg(TRACE, "TDLS Peer Discovered\n"); + break; + case BRCMF_E_REASON_TDLS_PEER_CONNECTED: + brcmf_dbg(TRACE, "TDLS Peer Connected\n"); + brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); + break; + case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED: + brcmf_dbg(TRACE, "TDLS Peer Disconnected\n"); + brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); + break; + } + + return 0; +} + +static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper) +{ + int ret; + + switch (oper) { + case NL80211_TDLS_DISCOVERY_REQ: + ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY; + break; + case NL80211_TDLS_SETUP: + ret = BRCMF_TDLS_MANUAL_EP_CREATE; + break; + case NL80211_TDLS_TEARDOWN: + ret = BRCMF_TDLS_MANUAL_EP_DELETE; + break; + default: + brcmf_err("unsupported operation: %d\n", oper); + ret = -EOPNOTSUPP; + } + return ret; +} + +static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy, + struct net_device *ndev, const u8 *peer, + enum nl80211_tdls_operation oper) +{ + struct brcmf_if *ifp; + struct brcmf_tdls_iovar_le info; + int ret = 0; + + ret = brcmf_convert_nl80211_tdls_oper(oper); + if (ret < 0) + return ret; + + ifp = netdev_priv(ndev); + memset(&info, 0, sizeof(info)); + info.mode = (u8)ret; + if (peer) + memcpy(info.ea, peer, ETH_ALEN); + + ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint", + &info, sizeof(info)); + if (ret < 0) + brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret); + + return ret; +} + +static struct cfg80211_ops wl_cfg80211_ops = { + .add_virtual_intf = brcmf_cfg80211_add_iface, + .del_virtual_intf = brcmf_cfg80211_del_iface, + .change_virtual_intf = brcmf_cfg80211_change_iface, + .scan = brcmf_cfg80211_scan, + .set_wiphy_params = brcmf_cfg80211_set_wiphy_params, + .join_ibss = brcmf_cfg80211_join_ibss, + .leave_ibss = brcmf_cfg80211_leave_ibss, + .get_station = brcmf_cfg80211_get_station, + .set_tx_power = brcmf_cfg80211_set_tx_power, + .get_tx_power = brcmf_cfg80211_get_tx_power, + .add_key = brcmf_cfg80211_add_key, + .del_key = brcmf_cfg80211_del_key, + .get_key = brcmf_cfg80211_get_key, + .set_default_key = brcmf_cfg80211_config_default_key, + .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key, + .set_power_mgmt = brcmf_cfg80211_set_power_mgmt, + .connect = brcmf_cfg80211_connect, + .disconnect = brcmf_cfg80211_disconnect, + .suspend = brcmf_cfg80211_suspend, + .resume = brcmf_cfg80211_resume, + .set_pmksa = brcmf_cfg80211_set_pmksa, + .del_pmksa = brcmf_cfg80211_del_pmksa, + .flush_pmksa = brcmf_cfg80211_flush_pmksa, + .start_ap = brcmf_cfg80211_start_ap, + .stop_ap = brcmf_cfg80211_stop_ap, + .change_beacon = brcmf_cfg80211_change_beacon, + .del_station = brcmf_cfg80211_del_station, + .change_station = brcmf_cfg80211_change_station, + .sched_scan_start = brcmf_cfg80211_sched_scan_start, + .sched_scan_stop = brcmf_cfg80211_sched_scan_stop, + .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register, + .mgmt_tx = brcmf_cfg80211_mgmt_tx, + .remain_on_channel = brcmf_p2p_remain_on_channel, + .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel, + .start_p2p_device = brcmf_p2p_start_device, + .stop_p2p_device = brcmf_p2p_stop_device, + .crit_proto_start = brcmf_cfg80211_crit_proto_start, + .crit_proto_stop = brcmf_cfg80211_crit_proto_stop, + .tdls_oper = brcmf_cfg80211_tdls_oper, +}; + +struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg, + enum nl80211_iftype type, + bool pm_block) +{ + struct brcmf_cfg80211_vif *vif_walk; + struct brcmf_cfg80211_vif *vif; + bool mbss; + + brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n", + sizeof(*vif)); + vif = kzalloc(sizeof(*vif), GFP_KERNEL); + if (!vif) + return ERR_PTR(-ENOMEM); + + vif->wdev.wiphy = cfg->wiphy; + vif->wdev.iftype = type; + + vif->pm_block = pm_block; + vif->roam_off = -1; + + brcmf_init_prof(&vif->profile); + + if (type == NL80211_IFTYPE_AP) { + mbss = false; + list_for_each_entry(vif_walk, &cfg->vif_list, list) { + if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) { + mbss = true; + break; + } + } + vif->mbss = mbss; + } + + list_add_tail(&vif->list, &cfg->vif_list); + return vif; +} + +void brcmf_free_vif(struct brcmf_cfg80211_vif *vif) +{ + list_del(&vif->list); + kfree(vif); +} + +void brcmf_cfg80211_free_netdev(struct net_device *ndev) +{ + struct brcmf_cfg80211_vif *vif; + struct brcmf_if *ifp; + + ifp = netdev_priv(ndev); + vif = ifp->vif; + + brcmf_free_vif(vif); + free_netdev(ndev); +} + +static bool brcmf_is_linkup(const struct brcmf_event_msg *e) +{ + u32 event = e->event_code; + u32 status = e->status; + + if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) { + brcmf_dbg(CONN, "Processing set ssid\n"); + return true; + } + + return false; +} + +static bool brcmf_is_linkdown(const struct brcmf_event_msg *e) +{ + u32 event = e->event_code; + u16 flags = e->flags; + + if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) || + (event == BRCMF_E_DISASSOC_IND) || + ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) { + brcmf_dbg(CONN, "Processing link down\n"); + return true; + } + return false; +} + +static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg, + const struct brcmf_event_msg *e) +{ + u32 event = e->event_code; + u32 status = e->status; + + if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) { + brcmf_dbg(CONN, "Processing Link %s & no network found\n", + e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down"); + return true; + } + + if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) { + brcmf_dbg(CONN, "Processing connecting & no network found\n"); + return true; + } + + return false; +} + +static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg) +{ + struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); + + kfree(conn_info->req_ie); + conn_info->req_ie = NULL; + conn_info->req_ie_len = 0; + kfree(conn_info->resp_ie); + conn_info->resp_ie = NULL; + conn_info->resp_ie_len = 0; +} + +static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg, + struct brcmf_if *ifp) +{ + struct brcmf_cfg80211_assoc_ielen_le *assoc_info; + struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); + u32 req_len; + u32 resp_len; + s32 err = 0; + + brcmf_clear_assoc_ies(cfg); + + err = brcmf_fil_iovar_data_get(ifp, "assoc_info", + cfg->extra_buf, WL_ASSOC_INFO_MAX); + if (err) { + brcmf_err("could not get assoc info (%d)\n", err); + return err; + } + assoc_info = + (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf; + req_len = le32_to_cpu(assoc_info->req_len); + resp_len = le32_to_cpu(assoc_info->resp_len); + if (req_len) { + err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies", + cfg->extra_buf, + WL_ASSOC_INFO_MAX); + if (err) { + brcmf_err("could not get assoc req (%d)\n", err); + return err; + } + conn_info->req_ie_len = req_len; + conn_info->req_ie = + kmemdup(cfg->extra_buf, conn_info->req_ie_len, + GFP_KERNEL); + } else { + conn_info->req_ie_len = 0; + conn_info->req_ie = NULL; + } + if (resp_len) { + err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies", + cfg->extra_buf, + WL_ASSOC_INFO_MAX); + if (err) { + brcmf_err("could not get assoc resp (%d)\n", err); + return err; + } + conn_info->resp_ie_len = resp_len; + conn_info->resp_ie = + kmemdup(cfg->extra_buf, conn_info->resp_ie_len, + GFP_KERNEL); + } else { + conn_info->resp_ie_len = 0; + conn_info->resp_ie = NULL; + } + brcmf_dbg(CONN, "req len (%d) resp len (%d)\n", + conn_info->req_ie_len, conn_info->resp_ie_len); + + return err; +} + +static s32 +brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg, + struct net_device *ndev, + const struct brcmf_event_msg *e) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; + struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); + struct wiphy *wiphy = cfg_to_wiphy(cfg); + struct ieee80211_channel *notify_channel = NULL; + struct ieee80211_supported_band *band; + struct brcmf_bss_info_le *bi; + struct brcmu_chan ch; + u32 freq; + s32 err = 0; + u8 *buf; + + brcmf_dbg(TRACE, "Enter\n"); + + brcmf_get_assoc_ies(cfg, ifp); + memcpy(profile->bssid, e->addr, ETH_ALEN); + brcmf_update_bss_info(cfg, ifp); + + buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); + if (buf == NULL) { + err = -ENOMEM; + goto done; + } + + /* data sent to dongle has to be little endian */ + *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); + err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, + buf, WL_BSS_INFO_MAX); + + if (err) + goto done; + + bi = (struct brcmf_bss_info_le *)(buf + 4); + ch.chspec = le16_to_cpu(bi->chanspec); + cfg->d11inf.decchspec(&ch); + + if (ch.band == BRCMU_CHAN_BAND_2G) + band = wiphy->bands[IEEE80211_BAND_2GHZ]; + else + band = wiphy->bands[IEEE80211_BAND_5GHZ]; + + freq = ieee80211_channel_to_frequency(ch.chnum, band->band); + notify_channel = ieee80211_get_channel(wiphy, freq); + +done: + kfree(buf); + cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid, + conn_info->req_ie, conn_info->req_ie_len, + conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL); + brcmf_dbg(CONN, "Report roaming result\n"); + + set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); + brcmf_dbg(TRACE, "Exit\n"); + return err; +} + +static s32 +brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg, + struct net_device *ndev, const struct brcmf_event_msg *e, + bool completed) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; + struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); + + brcmf_dbg(TRACE, "Enter\n"); + + if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING, + &ifp->vif->sme_state)) { + if (completed) { + brcmf_get_assoc_ies(cfg, ifp); + memcpy(profile->bssid, e->addr, ETH_ALEN); + brcmf_update_bss_info(cfg, ifp); + set_bit(BRCMF_VIF_STATUS_CONNECTED, + &ifp->vif->sme_state); + } + cfg80211_connect_result(ndev, + (u8 *)profile->bssid, + conn_info->req_ie, + conn_info->req_ie_len, + conn_info->resp_ie, + conn_info->resp_ie_len, + completed ? WLAN_STATUS_SUCCESS : + WLAN_STATUS_AUTH_TIMEOUT, + GFP_KERNEL); + brcmf_dbg(CONN, "Report connect result - connection %s\n", + completed ? "succeeded" : "failed"); + } + brcmf_dbg(TRACE, "Exit\n"); + return 0; +} + +static s32 +brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg, + struct net_device *ndev, + const struct brcmf_event_msg *e, void *data) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + static int generation; + u32 event = e->event_code; + u32 reason = e->reason; + struct station_info sinfo; + + brcmf_dbg(CONN, "event %d, reason %d\n", event, reason); + if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS && + ndev != cfg_to_ndev(cfg)) { + brcmf_dbg(CONN, "AP mode link down\n"); + complete(&cfg->vif_disabled); + if (ifp->vif->mbss) + brcmf_remove_interface(ifp->drvr, ifp->bssidx); + return 0; + } + + if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) && + (reason == BRCMF_E_STATUS_SUCCESS)) { + memset(&sinfo, 0, sizeof(sinfo)); + if (!data) { + brcmf_err("No IEs present in ASSOC/REASSOC_IND"); + return -EINVAL; + } + sinfo.assoc_req_ies = data; + sinfo.assoc_req_ies_len = e->datalen; + generation++; + sinfo.generation = generation; + cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL); + } else if ((event == BRCMF_E_DISASSOC_IND) || + (event == BRCMF_E_DEAUTH_IND) || + (event == BRCMF_E_DEAUTH)) { + cfg80211_del_sta(ndev, e->addr, GFP_KERNEL); + } + return 0; +} + +static s32 +brcmf_notify_connect_status(struct brcmf_if *ifp, + const struct brcmf_event_msg *e, void *data) +{ + struct brcmf_cfg80211_info *cfg = ifp->drvr->config; + struct net_device *ndev = ifp->ndev; + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; + struct ieee80211_channel *chan; + s32 err = 0; + + if ((e->event_code == BRCMF_E_DEAUTH) || + (e->event_code == BRCMF_E_DEAUTH_IND) || + (e->event_code == BRCMF_E_DISASSOC_IND) || + ((e->event_code == BRCMF_E_LINK) && (!e->flags))) { + brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); + } + + if (brcmf_is_apmode(ifp->vif)) { + err = brcmf_notify_connect_status_ap(cfg, ndev, e, data); + } else if (brcmf_is_linkup(e)) { + brcmf_dbg(CONN, "Linkup\n"); + if (brcmf_is_ibssmode(ifp->vif)) { + chan = ieee80211_get_channel(cfg->wiphy, cfg->channel); + memcpy(profile->bssid, e->addr, ETH_ALEN); + wl_inform_ibss(cfg, ndev, e->addr); + cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL); + clear_bit(BRCMF_VIF_STATUS_CONNECTING, + &ifp->vif->sme_state); + set_bit(BRCMF_VIF_STATUS_CONNECTED, + &ifp->vif->sme_state); + } else + brcmf_bss_connect_done(cfg, ndev, e, true); + } else if (brcmf_is_linkdown(e)) { + brcmf_dbg(CONN, "Linkdown\n"); + if (!brcmf_is_ibssmode(ifp->vif)) { + brcmf_bss_connect_done(cfg, ndev, e, false); + } + brcmf_link_down(ifp->vif, brcmf_map_fw_linkdown_reason(e)); + brcmf_init_prof(ndev_to_prof(ndev)); + if (ndev != cfg_to_ndev(cfg)) + complete(&cfg->vif_disabled); + } else if (brcmf_is_nonetwork(cfg, e)) { + if (brcmf_is_ibssmode(ifp->vif)) + clear_bit(BRCMF_VIF_STATUS_CONNECTING, + &ifp->vif->sme_state); + else + brcmf_bss_connect_done(cfg, ndev, e, false); + } + + return err; +} + +static s32 +brcmf_notify_roaming_status(struct brcmf_if *ifp, + const struct brcmf_event_msg *e, void *data) +{ + struct brcmf_cfg80211_info *cfg = ifp->drvr->config; + u32 event = e->event_code; + u32 status = e->status; + + if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) { + if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state)) + brcmf_bss_roaming_done(cfg, ifp->ndev, e); + else + brcmf_bss_connect_done(cfg, ifp->ndev, e, true); + } + + return 0; +} + +static s32 +brcmf_notify_mic_status(struct brcmf_if *ifp, + const struct brcmf_event_msg *e, void *data) +{ + u16 flags = e->flags; + enum nl80211_key_type key_type; + + if (flags & BRCMF_EVENT_MSG_GROUP) + key_type = NL80211_KEYTYPE_GROUP; + else + key_type = NL80211_KEYTYPE_PAIRWISE; + + cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1, + NULL, GFP_KERNEL); + + return 0; +} + +static s32 brcmf_notify_vif_event(struct brcmf_if *ifp, + const struct brcmf_event_msg *e, void *data) +{ + struct brcmf_cfg80211_info *cfg = ifp->drvr->config; + struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data; + struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; + struct brcmf_cfg80211_vif *vif; + + brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n", + ifevent->action, ifevent->flags, ifevent->ifidx, + ifevent->bssidx); + + mutex_lock(&event->vif_event_lock); + event->action = ifevent->action; + vif = event->vif; + + switch (ifevent->action) { + case BRCMF_E_IF_ADD: + /* waiting process may have timed out */ + if (!cfg->vif_event.vif) { + mutex_unlock(&event->vif_event_lock); + return -EBADF; + } + + ifp->vif = vif; + vif->ifp = ifp; + if (ifp->ndev) { + vif->wdev.netdev = ifp->ndev; + ifp->ndev->ieee80211_ptr = &vif->wdev; + SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy)); + } + mutex_unlock(&event->vif_event_lock); + wake_up(&event->vif_wq); + return 0; + + case BRCMF_E_IF_DEL: + mutex_unlock(&event->vif_event_lock); + /* event may not be upon user request */ + if (brcmf_cfg80211_vif_event_armed(cfg)) + wake_up(&event->vif_wq); + return 0; + + case BRCMF_E_IF_CHANGE: + mutex_unlock(&event->vif_event_lock); + wake_up(&event->vif_wq); + return 0; + + default: + mutex_unlock(&event->vif_event_lock); + break; + } + return -EINVAL; +} + +static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf) +{ + conf->frag_threshold = (u32)-1; + conf->rts_threshold = (u32)-1; + conf->retry_short = (u32)-1; + conf->retry_long = (u32)-1; + conf->tx_power = -1; +} + +static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg) +{ + brcmf_fweh_register(cfg->pub, BRCMF_E_LINK, + brcmf_notify_connect_status); + brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND, + brcmf_notify_connect_status); + brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH, + brcmf_notify_connect_status); + brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND, + brcmf_notify_connect_status); + brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND, + brcmf_notify_connect_status); + brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND, + brcmf_notify_connect_status); + brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM, + brcmf_notify_roaming_status); + brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR, + brcmf_notify_mic_status); + brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID, + brcmf_notify_connect_status); + brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, + brcmf_notify_sched_scan_results); + brcmf_fweh_register(cfg->pub, BRCMF_E_IF, + brcmf_notify_vif_event); + brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG, + brcmf_p2p_notify_rx_mgmt_p2p_probereq); + brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE, + brcmf_p2p_notify_listen_complete); + brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX, + brcmf_p2p_notify_action_frame_rx); + brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE, + brcmf_p2p_notify_action_tx_complete); + brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE, + brcmf_p2p_notify_action_tx_complete); +} + +static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg) +{ + kfree(cfg->conf); + cfg->conf = NULL; + kfree(cfg->escan_ioctl_buf); + cfg->escan_ioctl_buf = NULL; + kfree(cfg->extra_buf); + cfg->extra_buf = NULL; + kfree(cfg->pmk_list); + cfg->pmk_list = NULL; +} + +static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg) +{ + cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL); + if (!cfg->conf) + goto init_priv_mem_out; + cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); + if (!cfg->escan_ioctl_buf) + goto init_priv_mem_out; + cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); + if (!cfg->extra_buf) + goto init_priv_mem_out; + cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL); + if (!cfg->pmk_list) + goto init_priv_mem_out; + + return 0; + +init_priv_mem_out: + brcmf_deinit_priv_mem(cfg); + + return -ENOMEM; +} + +static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg) +{ + s32 err = 0; + + cfg->scan_request = NULL; + cfg->pwr_save = true; + cfg->active_scan = true; /* we do active scan per default */ + cfg->dongle_up = false; /* dongle is not up yet */ + err = brcmf_init_priv_mem(cfg); + if (err) + return err; + brcmf_register_event_handlers(cfg); + mutex_init(&cfg->usr_sync); + brcmf_init_escan(cfg); + brcmf_init_conf(cfg->conf); + init_completion(&cfg->vif_disabled); + return err; +} + +static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg) +{ + cfg->dongle_up = false; /* dongle down */ + brcmf_abort_scanning(cfg); + brcmf_deinit_priv_mem(cfg); +} + +static void init_vif_event(struct brcmf_cfg80211_vif_event *event) +{ + init_waitqueue_head(&event->vif_wq); + mutex_init(&event->vif_event_lock); +} + +static s32 +brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout) +{ + s32 err = 0; + __le32 roamtrigger[2]; + __le32 roam_delta[2]; + + /* + * Setup timeout if Beacons are lost and roam is + * off to report link down + */ + if (brcmf_roamoff) { + err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout); + if (err) { + brcmf_err("bcn_timeout error (%d)\n", err); + goto dongle_rom_out; + } + } + + /* + * Enable/Disable built-in roaming to allow supplicant + * to take care of roaming + */ + brcmf_dbg(INFO, "Internal Roaming = %s\n", + brcmf_roamoff ? "Off" : "On"); + err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff)); + if (err) { + brcmf_err("roam_off error (%d)\n", err); + goto dongle_rom_out; + } + + roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL); + roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL); + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER, + (void *)roamtrigger, sizeof(roamtrigger)); + if (err) { + brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err); + goto dongle_rom_out; + } + + roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA); + roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL); + err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA, + (void *)roam_delta, sizeof(roam_delta)); + if (err) { + brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err); + goto dongle_rom_out; + } + +dongle_rom_out: + return err; +} + +static s32 +brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time, + s32 scan_unassoc_time, s32 scan_passive_time) +{ + s32 err = 0; + + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME, + scan_assoc_time); + if (err) { + if (err == -EOPNOTSUPP) + brcmf_dbg(INFO, "Scan assoc time is not supported\n"); + else + brcmf_err("Scan assoc time error (%d)\n", err); + goto dongle_scantime_out; + } + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME, + scan_unassoc_time); + if (err) { + if (err == -EOPNOTSUPP) + brcmf_dbg(INFO, "Scan unassoc time is not supported\n"); + else + brcmf_err("Scan unassoc time error (%d)\n", err); + goto dongle_scantime_out; + } + + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME, + scan_passive_time); + if (err) { + if (err == -EOPNOTSUPP) + brcmf_dbg(INFO, "Scan passive time is not supported\n"); + else + brcmf_err("Scan passive time error (%d)\n", err); + goto dongle_scantime_out; + } + +dongle_scantime_out: + return err; +} + +/* Filter the list of channels received from firmware counting only + * the 20MHz channels. The wiphy band data only needs those which get + * flagged to indicate if they can take part in higher bandwidth. + */ +static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg, + struct brcmf_chanspec_list *chlist, + u32 chcnt[]) +{ + u32 total = le32_to_cpu(chlist->count); + struct brcmu_chan ch; + int i; + + for (i = 0; i < total; i++) { + ch.chspec = (u16)le32_to_cpu(chlist->element[i]); + cfg->d11inf.decchspec(&ch); + + /* Firmware gives a ordered list. We skip non-20MHz + * channels is 2G. For 5G we can abort upon reaching + * a non-20MHz channel in the list. + */ + if (ch.bw != BRCMU_CHAN_BW_20) { + if (ch.band == BRCMU_CHAN_BAND_5G) + break; + else + continue; + } + + if (ch.band == BRCMU_CHAN_BAND_2G) + chcnt[0] += 1; + else if (ch.band == BRCMU_CHAN_BAND_5G) + chcnt[1] += 1; + } +} + +static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel, + struct brcmu_chan *ch) +{ + u32 ht40_flag; + + ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40; + if (ch->sb == BRCMU_CHAN_SB_U) { + if (ht40_flag == IEEE80211_CHAN_NO_HT40) + channel->flags &= ~IEEE80211_CHAN_NO_HT40; + channel->flags |= IEEE80211_CHAN_NO_HT40PLUS; + } else { + /* It should be one of + * IEEE80211_CHAN_NO_HT40 or + * IEEE80211_CHAN_NO_HT40PLUS + */ + channel->flags &= ~IEEE80211_CHAN_NO_HT40; + if (ht40_flag == IEEE80211_CHAN_NO_HT40) + channel->flags |= IEEE80211_CHAN_NO_HT40MINUS; + } +} + +static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg, + u32 bw_cap[]) +{ + struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + struct ieee80211_supported_band *band; + struct ieee80211_channel *channel; + struct wiphy *wiphy; + struct brcmf_chanspec_list *list; + struct brcmu_chan ch; + int err; + u8 *pbuf; + u32 i, j; + u32 total; + u32 chaninfo; + u32 chcnt[2] = { 0, 0 }; + u32 index; + + pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); + + if (pbuf == NULL) + return -ENOMEM; + + list = (struct brcmf_chanspec_list *)pbuf; + + err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, + BRCMF_DCMD_MEDLEN); + if (err) { + brcmf_err("get chanspecs error (%d)\n", err); + goto fail_pbuf; + } + + brcmf_count_20mhz_channels(cfg, list, chcnt); + wiphy = cfg_to_wiphy(cfg); + if (chcnt[0]) { + band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz), + GFP_KERNEL); + if (band == NULL) { + err = -ENOMEM; + goto fail_pbuf; + } + band->channels = kcalloc(chcnt[0], sizeof(*channel), + GFP_KERNEL); + if (band->channels == NULL) { + kfree(band); + err = -ENOMEM; + goto fail_pbuf; + } + band->n_channels = 0; + wiphy->bands[IEEE80211_BAND_2GHZ] = band; + } + if (chcnt[1]) { + band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a), + GFP_KERNEL); + if (band == NULL) { + err = -ENOMEM; + goto fail_band2g; + } + band->channels = kcalloc(chcnt[1], sizeof(*channel), + GFP_KERNEL); + if (band->channels == NULL) { + kfree(band); + err = -ENOMEM; + goto fail_band2g; + } + band->n_channels = 0; + wiphy->bands[IEEE80211_BAND_5GHZ] = band; + } + + total = le32_to_cpu(list->count); + for (i = 0; i < total; i++) { + ch.chspec = (u16)le32_to_cpu(list->element[i]); + cfg->d11inf.decchspec(&ch); + + if (ch.band == BRCMU_CHAN_BAND_2G) { + band = wiphy->bands[IEEE80211_BAND_2GHZ]; + } else if (ch.band == BRCMU_CHAN_BAND_5G) { + band = wiphy->bands[IEEE80211_BAND_5GHZ]; + } else { + brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec); + continue; + } + if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) && + ch.bw == BRCMU_CHAN_BW_40) + continue; + if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) && + ch.bw == BRCMU_CHAN_BW_80) + continue; + + channel = band->channels; + index = band->n_channels; + for (j = 0; j < band->n_channels; j++) { + if (channel[j].hw_value == ch.chnum) { + index = j; + break; + } + } + channel[index].center_freq = + ieee80211_channel_to_frequency(ch.chnum, band->band); + channel[index].hw_value = ch.chnum; + + /* assuming the chanspecs order is HT20, + * HT40 upper, HT40 lower, and VHT80. + */ + if (ch.bw == BRCMU_CHAN_BW_80) { + channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ; + } else if (ch.bw == BRCMU_CHAN_BW_40) { + brcmf_update_bw40_channel_flag(&channel[index], &ch); + } else { + /* disable other bandwidths for now as mentioned + * order assure they are enabled for subsequent + * chanspecs. + */ + channel[index].flags = IEEE80211_CHAN_NO_HT40 | + IEEE80211_CHAN_NO_80MHZ; + ch.bw = BRCMU_CHAN_BW_20; + cfg->d11inf.encchspec(&ch); + chaninfo = ch.chspec; + err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info", + &chaninfo); + if (!err) { + if (chaninfo & WL_CHAN_RADAR) + channel[index].flags |= + (IEEE80211_CHAN_RADAR | + IEEE80211_CHAN_NO_IR); + if (chaninfo & WL_CHAN_PASSIVE) + channel[index].flags |= + IEEE80211_CHAN_NO_IR; + } + } + if (index == band->n_channels) + band->n_channels++; + } + kfree(pbuf); + return 0; + +fail_band2g: + kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels); + kfree(wiphy->bands[IEEE80211_BAND_2GHZ]); + wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; +fail_pbuf: + kfree(pbuf); + return err; +} + +static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg) +{ + struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + struct ieee80211_supported_band *band; + struct brcmf_fil_bwcap_le band_bwcap; + struct brcmf_chanspec_list *list; + u8 *pbuf; + u32 val; + int err; + struct brcmu_chan ch; + u32 num_chan; + int i, j; + + /* verify support for bw_cap command */ + val = WLC_BAND_5G; + err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val); + + if (!err) { + /* only set 2G bandwidth using bw_cap command */ + band_bwcap.band = cpu_to_le32(WLC_BAND_2G); + band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ); + err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap, + sizeof(band_bwcap)); + } else { + brcmf_dbg(INFO, "fallback to mimo_bw_cap\n"); + val = WLC_N_BW_40ALL; + err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val); + } + + if (!err) { + /* update channel info in 2G band */ + pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); + + if (pbuf == NULL) + return -ENOMEM; + + ch.band = BRCMU_CHAN_BAND_2G; + ch.bw = BRCMU_CHAN_BW_40; + ch.sb = BRCMU_CHAN_SB_NONE; + ch.chnum = 0; + cfg->d11inf.encchspec(&ch); + + /* pass encoded chanspec in query */ + *(__le16 *)pbuf = cpu_to_le16(ch.chspec); + + err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, + BRCMF_DCMD_MEDLEN); + if (err) { + brcmf_err("get chanspecs error (%d)\n", err); + kfree(pbuf); + return err; + } + + band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ]; + list = (struct brcmf_chanspec_list *)pbuf; + num_chan = le32_to_cpu(list->count); + for (i = 0; i < num_chan; i++) { + ch.chspec = (u16)le32_to_cpu(list->element[i]); + cfg->d11inf.decchspec(&ch); + if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G)) + continue; + if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40)) + continue; + for (j = 0; j < band->n_channels; j++) { + if (band->channels[j].hw_value == ch.chnum) + break; + } + if (WARN_ON(j == band->n_channels)) + continue; + + brcmf_update_bw40_channel_flag(&band->channels[j], &ch); + } + kfree(pbuf); + } + return err; +} + +static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[]) +{ + u32 band, mimo_bwcap; + int err; + + band = WLC_BAND_2G; + err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); + if (!err) { + bw_cap[IEEE80211_BAND_2GHZ] = band; + band = WLC_BAND_5G; + err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); + if (!err) { + bw_cap[IEEE80211_BAND_5GHZ] = band; + return; + } + WARN_ON(1); + return; + } + brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n"); + mimo_bwcap = 0; + err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap); + if (err) + /* assume 20MHz if firmware does not give a clue */ + mimo_bwcap = WLC_N_BW_20ALL; + + switch (mimo_bwcap) { + case WLC_N_BW_40ALL: + bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT; + /* fall-thru */ + case WLC_N_BW_20IN2G_40IN5G: + bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT; + /* fall-thru */ + case WLC_N_BW_20ALL: + bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT; + bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT; + break; + default: + brcmf_err("invalid mimo_bw_cap value\n"); + } +} + +static void brcmf_update_ht_cap(struct ieee80211_supported_band *band, + u32 bw_cap[2], u32 nchain) +{ + band->ht_cap.ht_supported = true; + if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) { + band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40; + band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; + } + band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20; + band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40; + band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; + band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; + memset(band->ht_cap.mcs.rx_mask, 0xff, nchain); + band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; +} + +static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp) +{ + u16 mcs_map; + int i; + + for (i = 0, mcs_map = 0xFFFF; i < nchain; i++) + mcs_map = (mcs_map << 2) | supp; + + return cpu_to_le16(mcs_map); +} + +static void brcmf_update_vht_cap(struct ieee80211_supported_band *band, + u32 bw_cap[2], u32 nchain) +{ + __le16 mcs_map; + + /* not allowed in 2.4G band */ + if (band->band == IEEE80211_BAND_2GHZ) + return; + + band->vht_cap.vht_supported = true; + /* 80MHz is mandatory */ + band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80; + if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) { + band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; + band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160; + } + /* all support 256-QAM */ + mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9); + band->vht_cap.vht_mcs.rx_mcs_map = mcs_map; + band->vht_cap.vht_mcs.tx_mcs_map = mcs_map; +} + +static int brcmf_setup_wiphybands(struct wiphy *wiphy) +{ + struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + u32 nmode = 0; + u32 vhtmode = 0; + u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT }; + u32 rxchain; + u32 nchain; + int err; + s32 i; + struct ieee80211_supported_band *band; + + (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode); + err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode); + if (err) { + brcmf_err("nmode error (%d)\n", err); + } else { + brcmf_get_bwcap(ifp, bw_cap); + } + brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n", + nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ], + bw_cap[IEEE80211_BAND_5GHZ]); + + err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain); + if (err) { + brcmf_err("rxchain error (%d)\n", err); + nchain = 1; + } else { + for (nchain = 0; rxchain; nchain++) + rxchain = rxchain & (rxchain - 1); + } + brcmf_dbg(INFO, "nchain=%d\n", nchain); + + err = brcmf_construct_chaninfo(cfg, bw_cap); + if (err) { + brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err); + return err; + } + + wiphy = cfg_to_wiphy(cfg); + for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) { + band = wiphy->bands[i]; + if (band == NULL) + continue; + + if (nmode) + brcmf_update_ht_cap(band, bw_cap, nchain); + if (vhtmode) + brcmf_update_vht_cap(band, bw_cap, nchain); + } + + return 0; +} + +static const struct ieee80211_iface_limit brcmf_iface_limits_mbss[] = { + { + .max = 1, + .types = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC) + }, + { + .max = 4, + .types = BIT(NL80211_IFTYPE_AP) + }, + { + .max = 1, + .types = BIT(NL80211_IFTYPE_P2P_CLIENT) | + BIT(NL80211_IFTYPE_P2P_GO) + }, + { + .max = 1, + .types = BIT(NL80211_IFTYPE_P2P_DEVICE) + } +}; + +static const struct ieee80211_iface_limit brcmf_iface_limits_sbss[] = { + { + .max = 2, + .types = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC) | + BIT(NL80211_IFTYPE_AP) + }, + { + .max = 1, + .types = BIT(NL80211_IFTYPE_P2P_CLIENT) | + BIT(NL80211_IFTYPE_P2P_GO) + }, + { + .max = 1, + .types = BIT(NL80211_IFTYPE_P2P_DEVICE) + } +}; +static struct ieee80211_iface_combination brcmf_iface_combos[] = { + { + .max_interfaces = BRCMF_IFACE_MAX_CNT, + .num_different_channels = 1, + .n_limits = ARRAY_SIZE(brcmf_iface_limits_sbss), + .limits = brcmf_iface_limits_sbss, + } +}; + +static const struct ieee80211_txrx_stypes +brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = { + [NL80211_IFTYPE_STATION] = { + .tx = 0xffff, + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) + }, + [NL80211_IFTYPE_P2P_CLIENT] = { + .tx = 0xffff, + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) + }, + [NL80211_IFTYPE_P2P_GO] = { + .tx = 0xffff, + .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | + BIT(IEEE80211_STYPE_DISASSOC >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4) | + BIT(IEEE80211_STYPE_DEAUTH >> 4) | + BIT(IEEE80211_STYPE_ACTION >> 4) + }, + [NL80211_IFTYPE_P2P_DEVICE] = { + .tx = 0xffff, + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) + } +}; + +static void brcmf_wiphy_pno_params(struct wiphy *wiphy) +{ + /* scheduled scan settings */ + wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT; + wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT; + wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX; + wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; +} + +#ifdef CONFIG_PM +static const struct wiphy_wowlan_support brcmf_wowlan_support = { + .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT, + .n_patterns = BRCMF_WOWL_MAXPATTERNS, + .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE, + .pattern_min_len = 1, + .max_pkt_offset = 1500, +}; +#endif + +static void brcmf_wiphy_wowl_params(struct wiphy *wiphy) +{ +#ifdef CONFIG_PM + /* wowl settings */ + wiphy->wowlan = &brcmf_wowlan_support; +#endif +} + +static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp) +{ + struct ieee80211_iface_combination ifc_combo; + wiphy->max_scan_ssids = WL_NUM_SCAN_MAX; + wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX; + wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX; + wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC) | + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_P2P_CLIENT) | + BIT(NL80211_IFTYPE_P2P_GO) | + BIT(NL80211_IFTYPE_P2P_DEVICE); + /* need VSDB firmware feature for concurrent channels */ + ifc_combo = brcmf_iface_combos[0]; + if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN)) + ifc_combo.num_different_channels = 2; + if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) { + ifc_combo.n_limits = ARRAY_SIZE(brcmf_iface_limits_mbss), + ifc_combo.limits = brcmf_iface_limits_mbss; + } + wiphy->iface_combinations = kmemdup(&ifc_combo, + sizeof(ifc_combo), + GFP_KERNEL); + wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos); + wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + wiphy->cipher_suites = __wl_cipher_suites; + wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites); + wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT | + WIPHY_FLAG_OFFCHAN_TX | + WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | + WIPHY_FLAG_SUPPORTS_TDLS; + if (!brcmf_roamoff) + wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM; + wiphy->mgmt_stypes = brcmf_txrx_stypes; + wiphy->max_remain_on_channel_duration = 5000; + brcmf_wiphy_pno_params(wiphy); + + /* vendor commands/events support */ + wiphy->vendor_commands = brcmf_vendor_cmds; + wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1; + + if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) + brcmf_wiphy_wowl_params(wiphy); + + return brcmf_setup_wiphybands(wiphy); +} + +static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg) +{ + struct net_device *ndev; + struct wireless_dev *wdev; + struct brcmf_if *ifp; + s32 power_mode; + s32 err = 0; + + if (cfg->dongle_up) + return err; + + ndev = cfg_to_ndev(cfg); + wdev = ndev->ieee80211_ptr; + ifp = netdev_priv(ndev); + + /* make sure RF is ready for work */ + brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0); + + brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME, + WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME); + + power_mode = cfg->pwr_save ? PM_FAST : PM_OFF; + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode); + if (err) + goto default_conf_out; + brcmf_dbg(INFO, "power save set to %s\n", + (power_mode ? "enabled" : "disabled")); + + err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT); + if (err) + goto default_conf_out; + err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype, + NULL, NULL); + if (err) + goto default_conf_out; + + brcmf_configure_arp_offload(ifp, true); + + cfg->dongle_up = true; +default_conf_out: + + return err; + +} + +static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp) +{ + set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); + + return brcmf_config_dongle(ifp->drvr->config); +} + +static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp) +{ + struct brcmf_cfg80211_info *cfg = ifp->drvr->config; + + /* + * While going down, if associated with AP disassociate + * from AP to save power + */ + if (check_vif_up(ifp->vif)) { + brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED); + + /* Make sure WPA_Supplicant receives all the event + generated due to DISASSOC call to the fw to keep + the state fw and WPA_Supplicant state consistent + */ + brcmf_delay(500); + } + + brcmf_abort_scanning(cfg); + clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); + + return 0; +} + +s32 brcmf_cfg80211_up(struct net_device *ndev) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_info *cfg = ifp->drvr->config; + s32 err = 0; + + mutex_lock(&cfg->usr_sync); + err = __brcmf_cfg80211_up(ifp); + mutex_unlock(&cfg->usr_sync); + + return err; +} + +s32 brcmf_cfg80211_down(struct net_device *ndev) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_info *cfg = ifp->drvr->config; + s32 err = 0; + + mutex_lock(&cfg->usr_sync); + err = __brcmf_cfg80211_down(ifp); + mutex_unlock(&cfg->usr_sync); + + return err; +} + +enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp) +{ + struct wireless_dev *wdev = &ifp->vif->wdev; + + return wdev->iftype; +} + +bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg, + unsigned long state) +{ + struct brcmf_cfg80211_vif *vif; + + list_for_each_entry(vif, &cfg->vif_list, list) { + if (test_bit(state, &vif->sme_state)) + return true; + } + return false; +} + +static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event, + u8 action) +{ + u8 evt_action; + + mutex_lock(&event->vif_event_lock); + evt_action = event->action; + mutex_unlock(&event->vif_event_lock); + return evt_action == action; +} + +void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg, + struct brcmf_cfg80211_vif *vif) +{ + struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; + + mutex_lock(&event->vif_event_lock); + event->vif = vif; + event->action = 0; + mutex_unlock(&event->vif_event_lock); +} + +bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg) +{ + struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; + bool armed; + + mutex_lock(&event->vif_event_lock); + armed = event->vif != NULL; + mutex_unlock(&event->vif_event_lock); + + return armed; +} +int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg, + u8 action, ulong timeout) +{ + struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; + + return wait_event_timeout(event->vif_wq, + vif_event_equals(event, action), timeout); +} + +static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy, + struct regulatory_request *req) +{ + struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + struct brcmf_fil_country_le ccreq; + int i; + + brcmf_dbg(TRACE, "enter: initiator=%d, alpha=%c%c\n", req->initiator, + req->alpha2[0], req->alpha2[1]); + + /* ignore non-ISO3166 country codes */ + for (i = 0; i < sizeof(req->alpha2); i++) + if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') { + brcmf_err("not a ISO3166 code\n"); + return; + } + memset(&ccreq, 0, sizeof(ccreq)); + ccreq.rev = cpu_to_le32(-1); + memcpy(ccreq.ccode, req->alpha2, sizeof(req->alpha2)); + brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq)); +} + +static void brcmf_free_wiphy(struct wiphy *wiphy) +{ + kfree(wiphy->iface_combinations); + if (wiphy->bands[IEEE80211_BAND_2GHZ]) { + kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels); + kfree(wiphy->bands[IEEE80211_BAND_2GHZ]); + } + if (wiphy->bands[IEEE80211_BAND_5GHZ]) { + kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels); + kfree(wiphy->bands[IEEE80211_BAND_5GHZ]); + } + wiphy_free(wiphy); +} + +struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr, + struct device *busdev) +{ + struct net_device *ndev = drvr->iflist[0]->ndev; + struct brcmf_cfg80211_info *cfg; + struct wiphy *wiphy; + struct brcmf_cfg80211_vif *vif; + struct brcmf_if *ifp; + s32 err = 0; + s32 io_type; + u16 *cap = NULL; + + if (!ndev) { + brcmf_err("ndev is invalid\n"); + return NULL; + } + + ifp = netdev_priv(ndev); + wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info)); + if (!wiphy) { + brcmf_err("Could not allocate wiphy device\n"); + return NULL; + } + set_wiphy_dev(wiphy, busdev); + + cfg = wiphy_priv(wiphy); + cfg->wiphy = wiphy; + cfg->pub = drvr; + init_vif_event(&cfg->vif_event); + INIT_LIST_HEAD(&cfg->vif_list); + + vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false); + if (IS_ERR(vif)) + goto wiphy_out; + + vif->ifp = ifp; + vif->wdev.netdev = ndev; + ndev->ieee80211_ptr = &vif->wdev; + SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy)); + + err = wl_init_priv(cfg); + if (err) { + brcmf_err("Failed to init iwm_priv (%d)\n", err); + brcmf_free_vif(vif); + goto wiphy_out; + } + ifp->vif = vif; + + /* determine d11 io type before wiphy setup */ + err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type); + if (err) { + brcmf_err("Failed to get D11 version (%d)\n", err); + goto priv_out; + } + cfg->d11inf.io_type = (u8)io_type; + brcmu_d11_attach(&cfg->d11inf); + + err = brcmf_setup_wiphy(wiphy, ifp); + if (err < 0) + goto priv_out; + + brcmf_dbg(INFO, "Registering custom regulatory\n"); + wiphy->reg_notifier = brcmf_cfg80211_reg_notifier; + wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG; + wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom); + + /* firmware defaults to 40MHz disabled in 2G band. We signal + * cfg80211 here that we do and have it decide we can enable + * it. But first check if device does support 2G operation. + */ + if (wiphy->bands[IEEE80211_BAND_2GHZ]) { + cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap; + *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; + } + err = wiphy_register(wiphy); + if (err < 0) { + brcmf_err("Could not register wiphy device (%d)\n", err); + goto priv_out; + } + + /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(), + * setup 40MHz in 2GHz band and enable OBSS scanning. + */ + if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) { + err = brcmf_enable_bw40_2g(cfg); + if (!err) + err = brcmf_fil_iovar_int_set(ifp, "obss_coex", + BRCMF_OBSS_COEX_AUTO); + else + *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + } + + err = brcmf_p2p_attach(cfg); + if (err) { + brcmf_err("P2P initilisation failed (%d)\n", err); + goto wiphy_unreg_out; + } + err = brcmf_btcoex_attach(cfg); + if (err) { + brcmf_err("BT-coex initialisation failed (%d)\n", err); + brcmf_p2p_detach(&cfg->p2p); + goto wiphy_unreg_out; + } + + err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1); + if (err) { + brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err); + wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS; + } else { + brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT, + brcmf_notify_tdls_peer_event); + } + + return cfg; + +wiphy_unreg_out: + wiphy_unregister(cfg->wiphy); +priv_out: + wl_deinit_priv(cfg); + brcmf_free_vif(vif); +wiphy_out: + brcmf_free_wiphy(wiphy); + return NULL; +} + +void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg) +{ + if (!cfg) + return; + + WARN_ON(!list_empty(&cfg->vif_list)); + wiphy_unregister(cfg->wiphy); + brcmf_btcoex_detach(cfg); + brcmf_p2p_detach(&cfg->p2p); + wl_deinit_priv(cfg); + brcmf_free_wiphy(cfg->wiphy); +} |