diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/cfg80211.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/cfg80211.c | 1538 |
1 files changed, 1538 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c new file mode 100644 index 000000000000..14559ffb1453 --- /dev/null +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c @@ -0,0 +1,1538 @@ +/* + * Copyright (c) 2004-2011 Atheros Communications Inc. + * + * 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. + */ + +#include "core.h" +#include "cfg80211.h" +#include "debug.h" + +#define RATETAB_ENT(_rate, _rateid, _flags) { \ + .bitrate = (_rate), \ + .flags = (_flags), \ + .hw_value = (_rateid), \ +} + +#define CHAN2G(_channel, _freq, _flags) { \ + .band = IEEE80211_BAND_2GHZ, \ + .hw_value = (_channel), \ + .center_freq = (_freq), \ + .flags = (_flags), \ + .max_antenna_gain = 0, \ + .max_power = 30, \ +} + +#define CHAN5G(_channel, _flags) { \ + .band = IEEE80211_BAND_5GHZ, \ + .hw_value = (_channel), \ + .center_freq = 5000 + (5 * (_channel)), \ + .flags = (_flags), \ + .max_antenna_gain = 0, \ + .max_power = 30, \ +} + +static struct ieee80211_rate ath6kl_rates[] = { + RATETAB_ENT(10, 0x1, 0), + RATETAB_ENT(20, 0x2, 0), + RATETAB_ENT(55, 0x4, 0), + RATETAB_ENT(110, 0x8, 0), + RATETAB_ENT(60, 0x10, 0), + RATETAB_ENT(90, 0x20, 0), + RATETAB_ENT(120, 0x40, 0), + RATETAB_ENT(180, 0x80, 0), + RATETAB_ENT(240, 0x100, 0), + RATETAB_ENT(360, 0x200, 0), + RATETAB_ENT(480, 0x400, 0), + RATETAB_ENT(540, 0x800, 0), +}; + +#define ath6kl_a_rates (ath6kl_rates + 4) +#define ath6kl_a_rates_size 8 +#define ath6kl_g_rates (ath6kl_rates + 0) +#define ath6kl_g_rates_size 12 + +static struct ieee80211_channel ath6kl_2ghz_channels[] = { + CHAN2G(1, 2412, 0), + CHAN2G(2, 2417, 0), + CHAN2G(3, 2422, 0), + CHAN2G(4, 2427, 0), + CHAN2G(5, 2432, 0), + CHAN2G(6, 2437, 0), + CHAN2G(7, 2442, 0), + CHAN2G(8, 2447, 0), + CHAN2G(9, 2452, 0), + CHAN2G(10, 2457, 0), + CHAN2G(11, 2462, 0), + CHAN2G(12, 2467, 0), + CHAN2G(13, 2472, 0), + CHAN2G(14, 2484, 0), +}; + +static struct ieee80211_channel ath6kl_5ghz_a_channels[] = { + CHAN5G(34, 0), CHAN5G(36, 0), + CHAN5G(38, 0), CHAN5G(40, 0), + CHAN5G(42, 0), CHAN5G(44, 0), + CHAN5G(46, 0), CHAN5G(48, 0), + CHAN5G(52, 0), CHAN5G(56, 0), + CHAN5G(60, 0), CHAN5G(64, 0), + CHAN5G(100, 0), CHAN5G(104, 0), + CHAN5G(108, 0), CHAN5G(112, 0), + CHAN5G(116, 0), CHAN5G(120, 0), + CHAN5G(124, 0), CHAN5G(128, 0), + CHAN5G(132, 0), CHAN5G(136, 0), + CHAN5G(140, 0), CHAN5G(149, 0), + CHAN5G(153, 0), CHAN5G(157, 0), + CHAN5G(161, 0), CHAN5G(165, 0), + CHAN5G(184, 0), CHAN5G(188, 0), + CHAN5G(192, 0), CHAN5G(196, 0), + CHAN5G(200, 0), CHAN5G(204, 0), + CHAN5G(208, 0), CHAN5G(212, 0), + CHAN5G(216, 0), +}; + +static struct ieee80211_supported_band ath6kl_band_2ghz = { + .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels), + .channels = ath6kl_2ghz_channels, + .n_bitrates = ath6kl_g_rates_size, + .bitrates = ath6kl_g_rates, +}; + +static struct ieee80211_supported_band ath6kl_band_5ghz = { + .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels), + .channels = ath6kl_5ghz_a_channels, + .n_bitrates = ath6kl_a_rates_size, + .bitrates = ath6kl_a_rates, +}; + +static int ath6kl_set_wpa_version(struct ath6kl *ar, + enum nl80211_wpa_versions wpa_version) +{ + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); + + if (!wpa_version) { + ar->auth_mode = NONE_AUTH; + } else if (wpa_version & NL80211_WPA_VERSION_2) { + ar->auth_mode = WPA2_AUTH; + } else if (wpa_version & NL80211_WPA_VERSION_1) { + ar->auth_mode = WPA_AUTH; + } else { + ath6kl_err("%s: %u not supported\n", __func__, wpa_version); + return -ENOTSUPP; + } + + return 0; +} + +static int ath6kl_set_auth_type(struct ath6kl *ar, + enum nl80211_auth_type auth_type) +{ + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); + + switch (auth_type) { + case NL80211_AUTHTYPE_OPEN_SYSTEM: + ar->dot11_auth_mode = OPEN_AUTH; + break; + case NL80211_AUTHTYPE_SHARED_KEY: + ar->dot11_auth_mode = SHARED_AUTH; + break; + case NL80211_AUTHTYPE_NETWORK_EAP: + ar->dot11_auth_mode = LEAP_AUTH; + break; + + case NL80211_AUTHTYPE_AUTOMATIC: + ar->dot11_auth_mode = OPEN_AUTH; + ar->auto_auth_stage = AUTH_OPEN_IN_PROGRESS; + break; + + default: + ath6kl_err("%s: 0x%x not spported\n", __func__, auth_type); + return -ENOTSUPP; + } + + return 0; +} + +static int ath6kl_set_cipher(struct ath6kl *ar, u32 cipher, bool ucast) +{ + u8 *ar_cipher = ucast ? &ar->prwise_crypto : &ar->grp_crypto; + u8 *ar_cipher_len = ucast ? &ar->prwise_crypto_len : &ar->grp_crpto_len; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", + __func__, cipher, ucast); + + switch (cipher) { + case 0: + /* our own hack to use value 0 as no crypto used */ + *ar_cipher = NONE_CRYPT; + *ar_cipher_len = 0; + break; + case WLAN_CIPHER_SUITE_WEP40: + *ar_cipher = WEP_CRYPT; + *ar_cipher_len = 5; + break; + case WLAN_CIPHER_SUITE_WEP104: + *ar_cipher = WEP_CRYPT; + *ar_cipher_len = 13; + break; + case WLAN_CIPHER_SUITE_TKIP: + *ar_cipher = TKIP_CRYPT; + *ar_cipher_len = 0; + break; + case WLAN_CIPHER_SUITE_CCMP: + *ar_cipher = AES_CRYPT; + *ar_cipher_len = 0; + break; + default: + ath6kl_err("cipher 0x%x not supported\n", cipher); + return -ENOTSUPP; + } + + return 0; +} + +static void ath6kl_set_key_mgmt(struct ath6kl *ar, u32 key_mgmt) +{ + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); + + if (key_mgmt == WLAN_AKM_SUITE_PSK) { + if (ar->auth_mode == WPA_AUTH) + ar->auth_mode = WPA_PSK_AUTH; + else if (ar->auth_mode == WPA2_AUTH) + ar->auth_mode = WPA2_PSK_AUTH; + } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { + ar->auth_mode = NONE_AUTH; + } +} + +static bool ath6kl_cfg80211_ready(struct ath6kl *ar) +{ + if (!test_bit(WMI_READY, &ar->flag)) { + ath6kl_err("wmi is not ready\n"); + return false; + } + + if (!test_bit(WLAN_ENABLED, &ar->flag)) { + ath6kl_err("wlan disabled\n"); + return false; + } + + return true; +} + +static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_connect_params *sme) +{ + struct ath6kl *ar = ath6kl_priv(dev); + int status; + + ar->sme_state = SME_CONNECTING; + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { + ath6kl_err("destroy in progress\n"); + return -EBUSY; + } + + if (test_bit(SKIP_SCAN, &ar->flag) && + ((sme->channel && sme->channel->center_freq == 0) || + (sme->bssid && is_zero_ether_addr(sme->bssid)))) { + ath6kl_err("SkipScan: channel or bssid invalid\n"); + return -EINVAL; + } + + if (down_interruptible(&ar->sem)) { + ath6kl_err("busy, couldn't get access\n"); + return -ERESTARTSYS; + } + + if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { + ath6kl_err("busy, destroy in progress\n"); + up(&ar->sem); + return -EBUSY; + } + + if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { + /* + * sleep until the command queue drains + */ + wait_event_interruptible_timeout(ar->event_wq, + ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0, + WMI_TIMEOUT); + if (signal_pending(current)) { + ath6kl_err("cmd queue drain timeout\n"); + up(&ar->sem); + return -EINTR; + } + } + + if (test_bit(CONNECTED, &ar->flag) && + ar->ssid_len == sme->ssid_len && + !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) { + ar->reconnect_flag = true; + status = ath6kl_wmi_reconnect_cmd(ar->wmi, ar->req_bssid, + ar->ch_hint); + + up(&ar->sem); + if (status) { + ath6kl_err("wmi_reconnect_cmd failed\n"); + return -EIO; + } + return 0; + } else if (ar->ssid_len == sme->ssid_len && + !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) { + ath6kl_disconnect(ar); + } + + memset(ar->ssid, 0, sizeof(ar->ssid)); + ar->ssid_len = sme->ssid_len; + memcpy(ar->ssid, sme->ssid, sme->ssid_len); + + if (sme->channel) + ar->ch_hint = sme->channel->center_freq; + + memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); + if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) + memcpy(ar->req_bssid, sme->bssid, sizeof(ar->req_bssid)); + + ath6kl_set_wpa_version(ar, sme->crypto.wpa_versions); + + status = ath6kl_set_auth_type(ar, sme->auth_type); + if (status) { + up(&ar->sem); + return status; + } + + if (sme->crypto.n_ciphers_pairwise) + ath6kl_set_cipher(ar, sme->crypto.ciphers_pairwise[0], true); + else + ath6kl_set_cipher(ar, 0, true); + + ath6kl_set_cipher(ar, sme->crypto.cipher_group, false); + + if (sme->crypto.n_akm_suites) + ath6kl_set_key_mgmt(ar, sme->crypto.akm_suites[0]); + + if ((sme->key_len) && + (ar->auth_mode == NONE_AUTH) && (ar->prwise_crypto == WEP_CRYPT)) { + struct ath6kl_key *key = NULL; + + if (sme->key_idx < WMI_MIN_KEY_INDEX || + sme->key_idx > WMI_MAX_KEY_INDEX) { + ath6kl_err("key index %d out of bounds\n", + sme->key_idx); + up(&ar->sem); + return -ENOENT; + } + + key = &ar->keys[sme->key_idx]; + key->key_len = sme->key_len; + memcpy(key->key, sme->key, key->key_len); + key->cipher = ar->prwise_crypto; + ar->def_txkey_index = sme->key_idx; + + ath6kl_wmi_addkey_cmd(ar->wmi, sme->key_idx, + ar->prwise_crypto, + GROUP_USAGE | TX_USAGE, + key->key_len, + NULL, + key->key, KEY_OP_INIT_VAL, NULL, + NO_SYNC_WMIFLAG); + } + + if (!ar->usr_bss_filter) { + if (ath6kl_wmi_bssfilter_cmd(ar->wmi, ALL_BSS_FILTER, 0) != 0) { + ath6kl_err("couldn't set bss filtering\n"); + up(&ar->sem); + return -EIO; + } + } + + ar->nw_type = ar->next_mode; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: connect called with authmode %d dot11 auth %d" + " PW crypto %d PW crypto len %d GRP crypto %d" + " GRP crypto len %d channel hint %u\n", + __func__, + ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto, + ar->prwise_crypto_len, ar->grp_crypto, + ar->grp_crpto_len, ar->ch_hint); + + ar->reconnect_flag = 0; + status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type, + ar->dot11_auth_mode, ar->auth_mode, + ar->prwise_crypto, + ar->prwise_crypto_len, + ar->grp_crypto, ar->grp_crpto_len, + ar->ssid_len, ar->ssid, + ar->req_bssid, ar->ch_hint, + ar->connect_ctrl_flags); + + up(&ar->sem); + + if (status == -EINVAL) { + memset(ar->ssid, 0, sizeof(ar->ssid)); + ar->ssid_len = 0; + ath6kl_err("invalid request\n"); + return -ENOENT; + } else if (status) { + ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); + return -EIO; + } + + if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && + ((ar->auth_mode == WPA_PSK_AUTH) + || (ar->auth_mode == WPA2_PSK_AUTH))) { + mod_timer(&ar->disconnect_timer, + jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); + } + + ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; + set_bit(CONNECT_PEND, &ar->flag); + + return 0; +} + +void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel, + u8 *bssid, u16 listen_intvl, + u16 beacon_intvl, + enum network_type nw_type, + u8 beacon_ie_len, u8 assoc_req_len, + u8 assoc_resp_len, u8 *assoc_info) +{ + u16 size = 0; + u16 capability = 0; + struct cfg80211_bss *bss = NULL; + struct ieee80211_mgmt *mgmt = NULL; + struct ieee80211_channel *ibss_ch = NULL; + s32 signal = 50 * 100; + u8 ie_buf_len = 0; + unsigned char ie_buf[256]; + unsigned char *ptr_ie_buf = ie_buf; + unsigned char *ieeemgmtbuf = NULL; + u8 source_mac[ETH_ALEN]; + u16 capa_mask; + u16 capa_val; + + /* capinfo + listen interval */ + u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); + + /* capinfo + status code + associd */ + u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); + + u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; + u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + + assoc_resp_ie_offset; + + assoc_req_len -= assoc_req_ie_offset; + assoc_resp_len -= assoc_resp_ie_offset; + + ar->auto_auth_stage = AUTH_IDLE; + + if (nw_type & ADHOC_NETWORK) { + if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: ath6k not in ibss mode\n", __func__); + return; + } + } + + if (nw_type & INFRA_NETWORK) { + if (ar->wdev->iftype != NL80211_IFTYPE_STATION) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: ath6k not in station mode\n", __func__); + return; + } + } + + if (nw_type & ADHOC_NETWORK) { + capa_mask = WLAN_CAPABILITY_IBSS; + capa_val = WLAN_CAPABILITY_IBSS; + } else { + capa_mask = WLAN_CAPABILITY_ESS; + capa_val = WLAN_CAPABILITY_ESS; + } + + /* Before informing the join/connect event, make sure that + * bss entry is present in scan list, if it not present + * construct and insert into scan list, otherwise that + * event will be dropped on the way by cfg80211, due to + * this keys will not be plumbed in case of WEP and + * application will not be aware of join/connect status. */ + bss = cfg80211_get_bss(ar->wdev->wiphy, NULL, bssid, + ar->wdev->ssid, ar->wdev->ssid_len, + capa_mask, capa_val); + + /* + * Earlier we were updating the cfg about bss by making a beacon frame + * only if the entry for bss is not there. This can have some issue if + * ROAM event is generated and a heavy traffic is ongoing. The ROAM + * event is handled through a work queue and by the time it really gets + * handled, BSS would have been aged out. So it is better to update the + * cfg about BSS irrespective of its entry being present right now or + * not. + */ + + if (nw_type & ADHOC_NETWORK) { + /* construct 802.11 mgmt beacon */ + if (ptr_ie_buf) { + *ptr_ie_buf++ = WLAN_EID_SSID; + *ptr_ie_buf++ = ar->ssid_len; + memcpy(ptr_ie_buf, ar->ssid, ar->ssid_len); + ptr_ie_buf += ar->ssid_len; + + *ptr_ie_buf++ = WLAN_EID_IBSS_PARAMS; + *ptr_ie_buf++ = 2; /* length */ + *ptr_ie_buf++ = 0; /* ATIM window */ + *ptr_ie_buf++ = 0; /* ATIM window */ + + /* TODO: update ibss params and include supported rates, + * DS param set, extened support rates, wmm. */ + + ie_buf_len = ptr_ie_buf - ie_buf; + } + + capability |= WLAN_CAPABILITY_IBSS; + + if (ar->prwise_crypto == WEP_CRYPT) + capability |= WLAN_CAPABILITY_PRIVACY; + + memcpy(source_mac, ar->net_dev->dev_addr, ETH_ALEN); + ptr_ie_buf = ie_buf; + } else { + capability = *(u16 *) (&assoc_info[beacon_ie_len]); + memcpy(source_mac, bssid, ETH_ALEN); + ptr_ie_buf = assoc_req_ie; + ie_buf_len = assoc_req_len; + } + + size = offsetof(struct ieee80211_mgmt, u) + + sizeof(mgmt->u.beacon) + + ie_buf_len; + + ieeemgmtbuf = kzalloc(size, GFP_ATOMIC); + if (!ieeemgmtbuf) { + ath6kl_err("ieee mgmt buf alloc error\n"); + cfg80211_put_bss(bss); + return; + } + + mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf; + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_BEACON); + memset(mgmt->da, 0xff, ETH_ALEN); /* broadcast addr */ + memcpy(mgmt->sa, source_mac, ETH_ALEN); + memcpy(mgmt->bssid, bssid, ETH_ALEN); + mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_intvl); + mgmt->u.beacon.capab_info = cpu_to_le16(capability); + memcpy(mgmt->u.beacon.variable, ptr_ie_buf, ie_buf_len); + + ibss_ch = ieee80211_get_channel(ar->wdev->wiphy, (int)channel); + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: inform bss with bssid %pM channel %d beacon_intvl %d capability 0x%x\n", + __func__, mgmt->bssid, ibss_ch->hw_value, + beacon_intvl, capability); + + bss = cfg80211_inform_bss_frame(ar->wdev->wiphy, + ibss_ch, mgmt, + size, signal, GFP_KERNEL); + kfree(ieeemgmtbuf); + cfg80211_put_bss(bss); + + if (nw_type & ADHOC_NETWORK) { + cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL); + return; + } + + if (ar->sme_state == SME_CONNECTING) { + /* inform connect result to cfg80211 */ + ar->sme_state = SME_CONNECTED; + cfg80211_connect_result(ar->net_dev, bssid, + assoc_req_ie, assoc_req_len, + assoc_resp_ie, assoc_resp_len, + WLAN_STATUS_SUCCESS, GFP_KERNEL); + } else if (ar->sme_state == SME_CONNECTED) { + /* inform roam event to cfg80211 */ + cfg80211_roamed(ar->net_dev, ibss_ch, bssid, + assoc_req_ie, assoc_req_len, + assoc_resp_ie, assoc_resp_len, GFP_KERNEL); + } +} + +static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, + struct net_device *dev, u16 reason_code) +{ + struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev); + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, + reason_code); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { + ath6kl_err("busy, destroy in progress\n"); + return -EBUSY; + } + + if (down_interruptible(&ar->sem)) { + ath6kl_err("busy, couldn't get access\n"); + return -ERESTARTSYS; + } + + ar->reconnect_flag = 0; + ath6kl_disconnect(ar); + memset(ar->ssid, 0, sizeof(ar->ssid)); + ar->ssid_len = 0; + + if (!test_bit(SKIP_SCAN, &ar->flag)) + memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); + + up(&ar->sem); + + return 0; +} + +void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason, + u8 *bssid, u8 assoc_resp_len, + u8 *assoc_info, u16 proto_reason) +{ + struct ath6kl_key *key = NULL; + u16 status; + + if (ar->scan_req) { + cfg80211_scan_done(ar->scan_req, true); + ar->scan_req = NULL; + } + + if (ar->nw_type & ADHOC_NETWORK) { + if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: ath6k not in ibss mode\n", __func__); + return; + } + memset(bssid, 0, ETH_ALEN); + cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL); + return; + } + + if (ar->nw_type & INFRA_NETWORK) { + if (ar->wdev->iftype != NL80211_IFTYPE_STATION) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: ath6k not in station mode\n", __func__); + return; + } + } + + if (!test_bit(CONNECT_PEND, &ar->flag)) { + if (reason != DISCONNECT_CMD) + ath6kl_wmi_disconnect_cmd(ar->wmi); + + return; + } + + if (reason == NO_NETWORK_AVAIL) { + /* connect cmd failed */ + ath6kl_wmi_disconnect_cmd(ar->wmi); + return; + } + + if (reason != DISCONNECT_CMD) + return; + + if (!ar->auto_auth_stage) { + clear_bit(CONNECT_PEND, &ar->flag); + + if (ar->sme_state == SME_CONNECTING) { + cfg80211_connect_result(ar->net_dev, + bssid, NULL, 0, + NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + GFP_KERNEL); + } else { + cfg80211_disconnected(ar->net_dev, reason, + NULL, 0, GFP_KERNEL); + } + + ar->sme_state = SME_DISCONNECTED; + return; + } + + if (ar->dot11_auth_mode != OPEN_AUTH) + return; + + /* + * If the current auth algorithm is open, try shared and + * make autoAuthStage idle. We do not make it leap for now + * being. + */ + key = &ar->keys[ar->def_txkey_index]; + if (down_interruptible(&ar->sem)) { + ath6kl_err("busy, couldn't get access\n"); + return; + } + + ar->dot11_auth_mode = SHARED_AUTH; + ar->auto_auth_stage = AUTH_IDLE; + + ath6kl_wmi_addkey_cmd(ar->wmi, + ar->def_txkey_index, + ar->prwise_crypto, + GROUP_USAGE | TX_USAGE, + key->key_len, NULL, + key->key, + KEY_OP_INIT_VAL, NULL, + NO_SYNC_WMIFLAG); + + status = ath6kl_wmi_connect_cmd(ar->wmi, + ar->nw_type, + ar->dot11_auth_mode, + ar->auth_mode, + ar->prwise_crypto, + ar->prwise_crypto_len, + ar->grp_crypto, + ar->grp_crpto_len, + ar->ssid_len, + ar->ssid, + ar->req_bssid, + ar->ch_hint, + ar->connect_ctrl_flags); + up(&ar->sem); +} + +static inline bool is_ch_11a(u16 ch) +{ + return (!((ch >= 2412) && (ch <= 2484))); +} + +/* struct ath6kl_node_table::nt_nodelock is locked when calling this */ +void ath6kl_cfg80211_scan_node(struct wiphy *wiphy, struct bss *ni) +{ + u16 size; + unsigned char *ieeemgmtbuf = NULL; + struct ieee80211_mgmt *mgmt; + struct ieee80211_channel *channel; + struct ieee80211_supported_band *band; + struct ath6kl_common_ie *cie; + s32 signal; + int freq; + + cie = &ni->ni_cie; + + if (is_ch_11a(cie->ie_chan)) + band = wiphy->bands[IEEE80211_BAND_5GHZ]; /* 11a */ + else if ((cie->ie_erp) || (cie->ie_xrates)) + band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11g */ + else + band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11b */ + + size = ni->ni_framelen + offsetof(struct ieee80211_mgmt, u); + ieeemgmtbuf = kmalloc(size, GFP_ATOMIC); + if (!ieeemgmtbuf) { + ath6kl_err("ieee mgmt buf alloc error\n"); + return; + } + + /* + * TODO: Update target to include 802.11 mac header while sending + * bss info. Target removes 802.11 mac header while sending the bss + * info to host, cfg80211 needs it, for time being just filling the + * da, sa and bssid fields alone. + */ + mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf; + memset(mgmt->da, 0xff, ETH_ALEN); /*broadcast addr */ + memcpy(mgmt->sa, ni->ni_macaddr, ETH_ALEN); + memcpy(mgmt->bssid, ni->ni_macaddr, ETH_ALEN); + memcpy(ieeemgmtbuf + offsetof(struct ieee80211_mgmt, u), + ni->ni_buf, ni->ni_framelen); + + freq = cie->ie_chan; + channel = ieee80211_get_channel(wiphy, freq); + signal = ni->ni_snr * 100; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: bssid %pM ch %d freq %d size %d\n", __func__, + mgmt->bssid, channel->hw_value, freq, size); + cfg80211_inform_bss_frame(wiphy, channel, mgmt, + size, signal, GFP_ATOMIC); + + kfree(ieeemgmtbuf); +} + +static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_scan_request *request) +{ + struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + int ret = 0; + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (!ar->usr_bss_filter) { + if (ath6kl_wmi_bssfilter_cmd(ar->wmi, + (test_bit(CONNECTED, &ar->flag) ? + ALL_BUT_BSS_FILTER : + ALL_BSS_FILTER), 0) != 0) { + ath6kl_err("couldn't set bss filtering\n"); + return -EIO; + } + } + + if (request->n_ssids && request->ssids[0].ssid_len) { + u8 i; + + if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1)) + request->n_ssids = MAX_PROBED_SSID_INDEX - 1; + + for (i = 0; i < request->n_ssids; i++) + ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1, + SPECIFIC_SSID_FLAG, + request->ssids[i].ssid_len, + request->ssids[i].ssid); + } + + if (ath6kl_wmi_startscan_cmd(ar->wmi, WMI_LONG_SCAN, 0, + false, 0, 0, 0, NULL) != 0) { + ath6kl_err("wmi_startscan_cmd failed\n"); + ret = -EIO; + } + + ar->scan_req = request; + + return ret; +} + +void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status) +{ + int i; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status %d\n", __func__, status); + + if (!ar->scan_req) + return; + + if ((status == -ECANCELED) || (status == -EBUSY)) { + cfg80211_scan_done(ar->scan_req, true); + goto out; + } + + /* Translate data to cfg80211 mgmt format */ + wlan_iterate_nodes(&ar->scan_table, ar->wdev->wiphy); + + cfg80211_scan_done(ar->scan_req, false); + + if (ar->scan_req->n_ssids && ar->scan_req->ssids[0].ssid_len) { + for (i = 0; i < ar->scan_req->n_ssids; i++) { + ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1, + DISABLE_SSID_FLAG, + 0, NULL); + } + } + +out: + ar->scan_req = NULL; +} + +static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_index, bool pairwise, + const u8 *mac_addr, + struct key_params *params) +{ + struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + struct ath6kl_key *key = NULL; + u8 key_usage; + u8 key_type; + int status = 0; + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: key index %d out of bounds\n", __func__, + key_index); + return -ENOENT; + } + + key = &ar->keys[key_index]; + memset(key, 0, sizeof(struct ath6kl_key)); + + if (pairwise) + key_usage = PAIRWISE_USAGE; + else + key_usage = GROUP_USAGE; + + if (params) { + if (params->key_len > WLAN_MAX_KEY_LEN || + params->seq_len > sizeof(key->seq)) + return -EINVAL; + + key->key_len = params->key_len; + memcpy(key->key, params->key, key->key_len); + key->seq_len = params->seq_len; + memcpy(key->seq, params->seq, key->seq_len); + key->cipher = params->cipher; + } + + switch (key->cipher) { + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + key_type = WEP_CRYPT; + break; + + case WLAN_CIPHER_SUITE_TKIP: + key_type = TKIP_CRYPT; + break; + + case WLAN_CIPHER_SUITE_CCMP: + key_type = AES_CRYPT; + break; + + default: + return -ENOTSUPP; + } + + if (((ar->auth_mode == WPA_PSK_AUTH) + || (ar->auth_mode == WPA2_PSK_AUTH)) + && (key_usage & GROUP_USAGE)) + del_timer(&ar->disconnect_timer); + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", + __func__, key_index, key->key_len, key_type, + key_usage, key->seq_len); + + ar->def_txkey_index = key_index; + status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index, + key_type, key_usage, key->key_len, + key->seq, key->key, KEY_OP_INIT_VAL, + (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); + + if (status) + return -EIO; + + return 0; +} + +static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_index, bool pairwise, + const u8 *mac_addr) +{ + struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: key index %d out of bounds\n", __func__, + key_index); + return -ENOENT; + } + + if (!ar->keys[key_index].key_len) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: index %d is empty\n", __func__, key_index); + return 0; + } + + ar->keys[key_index].key_len = 0; + + return ath6kl_wmi_deletekey_cmd(ar->wmi, key_index); +} + +static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_index, bool pairwise, + const u8 *mac_addr, void *cookie, + void (*callback) (void *cookie, + struct key_params *)) +{ + struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + struct ath6kl_key *key = NULL; + struct key_params params; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: key index %d out of bounds\n", __func__, + key_index); + return -ENOENT; + } + + key = &ar->keys[key_index]; + memset(¶ms, 0, sizeof(params)); + params.cipher = key->cipher; + params.key_len = key->key_len; + params.seq_len = key->seq_len; + params.seq = key->seq; + params.key = key->key; + + callback(cookie, ¶ms); + + return key->key_len ? 0 : -ENOENT; +} + +static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, + struct net_device *ndev, + u8 key_index, bool unicast, + bool multicast) +{ + struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + struct ath6kl_key *key = NULL; + int status = 0; + u8 key_usage; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: key index %d out of bounds\n", + __func__, key_index); + return -ENOENT; + } + + if (!ar->keys[key_index].key_len) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", + __func__, key_index); + return -EINVAL; + } + + ar->def_txkey_index = key_index; + key = &ar->keys[ar->def_txkey_index]; + key_usage = GROUP_USAGE; + if (ar->prwise_crypto == WEP_CRYPT) + key_usage |= TX_USAGE; + + status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index, + ar->prwise_crypto, key_usage, + key->key_len, key->seq, key->key, + KEY_OP_INIT_VAL, NULL, + SYNC_BOTH_WMIFLAG); + if (status) + return -EIO; + + return 0; +} + +void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid, + bool ismcast) +{ + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); + + cfg80211_michael_mic_failure(ar->net_dev, ar->bssid, + (ismcast ? NL80211_KEYTYPE_GROUP : + NL80211_KEYTYPE_PAIRWISE), keyid, NULL, + GFP_KERNEL); +} + +static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) +{ + struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); + int ret; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, + changed); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (changed & WIPHY_PARAM_RTS_THRESHOLD) { + ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); + if (ret != 0) { + ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); + return -EIO; + } + } + + return 0; +} + +/* + * The type nl80211_tx_power_setting replaces the following + * data type from 2.6.36 onwards +*/ +static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, + enum nl80211_tx_power_setting type, + int dbm) +{ + struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); + u8 ath6kl_dbm; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, + type, dbm); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + switch (type) { + case NL80211_TX_POWER_AUTOMATIC: + return 0; + case NL80211_TX_POWER_LIMITED: + ar->tx_pwr = ath6kl_dbm = dbm; + break; + default: + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", + __func__, type); + return -EOPNOTSUPP; + } + + ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, ath6kl_dbm); + + return 0; +} + +static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) +{ + struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (test_bit(CONNECTED, &ar->flag)) { + ar->tx_pwr = 0; + + if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi) != 0) { + ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); + return -EIO; + } + + wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, + 5 * HZ); + + if (signal_pending(current)) { + ath6kl_err("target did not respond\n"); + return -EINTR; + } + } + + *dbm = ar->tx_pwr; + return 0; +} + +static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, + struct net_device *dev, + bool pmgmt, int timeout) +{ + struct ath6kl *ar = ath6kl_priv(dev); + struct wmi_power_mode_cmd mode; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", + __func__, pmgmt, timeout); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + if (pmgmt) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); + mode.pwr_mode = REC_POWER; + } else { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); + mode.pwr_mode = MAX_PERF_POWER; + } + + if (ath6kl_wmi_powermode_cmd(ar->wmi, mode.pwr_mode) != 0) { + ath6kl_err("wmi_powermode_cmd failed\n"); + return -EIO; + } + + return 0; +} + +static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, + struct net_device *ndev, + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) +{ + struct ath6kl *ar = ath6kl_priv(ndev); + struct wireless_dev *wdev = ar->wdev; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + switch (type) { + case NL80211_IFTYPE_STATION: + ar->next_mode = INFRA_NETWORK; + break; + case NL80211_IFTYPE_ADHOC: + ar->next_mode = ADHOC_NETWORK; + break; + default: + ath6kl_err("invalid interface type %u\n", type); + return -EOPNOTSUPP; + } + + wdev->iftype = type; + + return 0; +} + +static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, + struct net_device *dev, + struct cfg80211_ibss_params *ibss_param) +{ + struct ath6kl *ar = ath6kl_priv(dev); + int status; + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + ar->ssid_len = ibss_param->ssid_len; + memcpy(ar->ssid, ibss_param->ssid, ar->ssid_len); + + if (ibss_param->channel) + ar->ch_hint = ibss_param->channel->center_freq; + + if (ibss_param->channel_fixed) { + /* + * TODO: channel_fixed: The channel should be fixed, do not + * search for IBSSs to join on other channels. Target + * firmware does not support this feature, needs to be + * updated. + */ + return -EOPNOTSUPP; + } + + memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); + if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) + memcpy(ar->req_bssid, ibss_param->bssid, sizeof(ar->req_bssid)); + + ath6kl_set_wpa_version(ar, 0); + + status = ath6kl_set_auth_type(ar, NL80211_AUTHTYPE_OPEN_SYSTEM); + if (status) + return status; + + if (ibss_param->privacy) { + ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, true); + ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, false); + } else { + ath6kl_set_cipher(ar, 0, true); + ath6kl_set_cipher(ar, 0, false); + } + + ar->nw_type = ar->next_mode; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, + "%s: connect called with authmode %d dot11 auth %d" + " PW crypto %d PW crypto len %d GRP crypto %d" + " GRP crypto len %d channel hint %u\n", + __func__, + ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto, + ar->prwise_crypto_len, ar->grp_crypto, + ar->grp_crpto_len, ar->ch_hint); + + status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type, + ar->dot11_auth_mode, ar->auth_mode, + ar->prwise_crypto, + ar->prwise_crypto_len, + ar->grp_crypto, ar->grp_crpto_len, + ar->ssid_len, ar->ssid, + ar->req_bssid, ar->ch_hint, + ar->connect_ctrl_flags); + set_bit(CONNECT_PEND, &ar->flag); + + return 0; +} + +static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, + struct net_device *dev) +{ + struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev); + + if (!ath6kl_cfg80211_ready(ar)) + return -EIO; + + ath6kl_disconnect(ar); + memset(ar->ssid, 0, sizeof(ar->ssid)); + ar->ssid_len = 0; + + return 0; +} + +static const u32 cipher_suites[] = { + WLAN_CIPHER_SUITE_WEP40, + WLAN_CIPHER_SUITE_WEP104, + WLAN_CIPHER_SUITE_TKIP, + WLAN_CIPHER_SUITE_CCMP, +}; + +static bool is_rate_legacy(s32 rate) +{ + static const s32 legacy[] = { 1000, 2000, 5500, 11000, + 6000, 9000, 12000, 18000, 24000, + 36000, 48000, 54000 + }; + u8 i; + + for (i = 0; i < ARRAY_SIZE(legacy); i++) + if (rate == legacy[i]) + return true; + + return false; +} + +static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) +{ + static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, + 52000, 58500, 65000, 72200 + }; + u8 i; + + for (i = 0; i < ARRAY_SIZE(ht20); i++) { + if (rate == ht20[i]) { + if (i == ARRAY_SIZE(ht20) - 1) + /* last rate uses sgi */ + *sgi = true; + else + *sgi = false; + + *mcs = i; + return true; + } + } + return false; +} + +static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) +{ + static const s32 ht40[] = { 13500, 27000, 40500, 54000, + 81000, 108000, 121500, 135000, + 150000 + }; + u8 i; + + for (i = 0; i < ARRAY_SIZE(ht40); i++) { + if (rate == ht40[i]) { + if (i == ARRAY_SIZE(ht40) - 1) + /* last rate uses sgi */ + *sgi = true; + else + *sgi = false; + + *mcs = i; + return true; + } + } + + return false; +} + +static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, + u8 *mac, struct station_info *sinfo) +{ + struct ath6kl *ar = ath6kl_priv(dev); + long left; + bool sgi; + s32 rate; + int ret; + u8 mcs; + + if (memcmp(mac, ar->bssid, ETH_ALEN) != 0) + return -ENOENT; + + if (down_interruptible(&ar->sem)) + return -EBUSY; + + set_bit(STATS_UPDATE_PEND, &ar->flag); + + ret = ath6kl_wmi_get_stats_cmd(ar->wmi); + + if (ret != 0) { + up(&ar->sem); + return -EIO; + } + + left = wait_event_interruptible_timeout(ar->event_wq, + !test_bit(STATS_UPDATE_PEND, + &ar->flag), + WMI_TIMEOUT); + + up(&ar->sem); + + if (left == 0) + return -ETIMEDOUT; + else if (left < 0) + return left; + + if (ar->target_stats.rx_byte) { + sinfo->rx_bytes = ar->target_stats.rx_byte; + sinfo->filled |= STATION_INFO_RX_BYTES; + sinfo->rx_packets = ar->target_stats.rx_pkt; + sinfo->filled |= STATION_INFO_RX_PACKETS; + } + + if (ar->target_stats.tx_byte) { + sinfo->tx_bytes = ar->target_stats.tx_byte; + sinfo->filled |= STATION_INFO_TX_BYTES; + sinfo->tx_packets = ar->target_stats.tx_pkt; + sinfo->filled |= STATION_INFO_TX_PACKETS; + } + + sinfo->signal = ar->target_stats.cs_rssi; + sinfo->filled |= STATION_INFO_SIGNAL; + + rate = ar->target_stats.tx_ucast_rate; + + if (is_rate_legacy(rate)) { + sinfo->txrate.legacy = rate / 100; + } else if (is_rate_ht20(rate, &mcs, &sgi)) { + if (sgi) { + sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; + sinfo->txrate.mcs = mcs - 1; + } else { + sinfo->txrate.mcs = mcs; + } + + sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; + } else if (is_rate_ht40(rate, &mcs, &sgi)) { + if (sgi) { + sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; + sinfo->txrate.mcs = mcs - 1; + } else { + sinfo->txrate.mcs = mcs; + } + + sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; + sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; + } else { + ath6kl_warn("invalid rate: %d\n", rate); + return 0; + } + + sinfo->filled |= STATION_INFO_TX_BITRATE; + + return 0; +} + +static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, + struct cfg80211_pmksa *pmksa) +{ + struct ath6kl *ar = ath6kl_priv(netdev); + return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, + pmksa->pmkid, true); +} + +static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, + struct cfg80211_pmksa *pmksa) +{ + struct ath6kl *ar = ath6kl_priv(netdev); + return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, + pmksa->pmkid, false); +} + +static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) +{ + struct ath6kl *ar = ath6kl_priv(netdev); + if (test_bit(CONNECTED, &ar->flag)) + return ath6kl_wmi_setpmkid_cmd(ar->wmi, ar->bssid, NULL, false); + return 0; +} + +static struct cfg80211_ops ath6kl_cfg80211_ops = { + .change_virtual_intf = ath6kl_cfg80211_change_iface, + .scan = ath6kl_cfg80211_scan, + .connect = ath6kl_cfg80211_connect, + .disconnect = ath6kl_cfg80211_disconnect, + .add_key = ath6kl_cfg80211_add_key, + .get_key = ath6kl_cfg80211_get_key, + .del_key = ath6kl_cfg80211_del_key, + .set_default_key = ath6kl_cfg80211_set_default_key, + .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, + .set_tx_power = ath6kl_cfg80211_set_txpower, + .get_tx_power = ath6kl_cfg80211_get_txpower, + .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, + .join_ibss = ath6kl_cfg80211_join_ibss, + .leave_ibss = ath6kl_cfg80211_leave_ibss, + .get_station = ath6kl_get_station, + .set_pmksa = ath6kl_set_pmksa, + .del_pmksa = ath6kl_del_pmksa, + .flush_pmksa = ath6kl_flush_pmksa, +}; + +struct wireless_dev *ath6kl_cfg80211_init(struct device *dev) +{ + int ret = 0; + struct wireless_dev *wdev; + + wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); + if (!wdev) { + ath6kl_err("couldn't allocate wireless device\n"); + return NULL; + } + + /* create a new wiphy for use with cfg80211 */ + wdev->wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); + if (!wdev->wiphy) { + ath6kl_err("couldn't allocate wiphy device\n"); + kfree(wdev); + return NULL; + } + + /* set device pointer for wiphy */ + set_wiphy_dev(wdev->wiphy, dev); + + wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC); + /* max num of ssids that can be probed during scanning */ + wdev->wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX; + wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; + wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; + wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + + wdev->wiphy->cipher_suites = cipher_suites; + wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); + + ret = wiphy_register(wdev->wiphy); + if (ret < 0) { + ath6kl_err("couldn't register wiphy device\n"); + wiphy_free(wdev->wiphy); + kfree(wdev); + return NULL; + } + + return wdev; +} + +void ath6kl_cfg80211_deinit(struct ath6kl *ar) +{ + struct wireless_dev *wdev = ar->wdev; + + if (ar->scan_req) { + cfg80211_scan_done(ar->scan_req, true); + ar->scan_req = NULL; + } + + if (!wdev) + return; + + wiphy_unregister(wdev->wiphy); + wiphy_free(wdev->wiphy); + kfree(wdev); +} |