Orange Pi5 kernel

/*
 * Copyright (c) 2004-2011 Atheros Communications Inc.
 * Copyright (c) 2011-2012 Qualcomm Atheros, 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.
 */
 
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
#include "core.h"
#include "hif-ops.h"
#include "cfg80211.h"
#include "target.h"
#include "debug.h"
 
struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr)
{
<------>struct ath6kl *ar = vif->ar;
<------>struct ath6kl_sta *conn = NULL;
<------>u8 i, max_conn;
 
<------>if (is_zero_ether_addr(node_addr))
<------><------>return NULL;
 
<------>max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
 
<------>for (i = 0; i < max_conn; i++) {
<------><------>if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) {
<------><------><------>conn = &ar->sta_list[i];
<------><------><------>break;
<------><------>}
<------>}
 
<------>return conn;
}
 
struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid)
{
<------>struct ath6kl_sta *conn = NULL;
<------>u8 ctr;
 
<------>for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
<------><------>if (ar->sta_list[ctr].aid == aid) {
<------><------><------>conn = &ar->sta_list[ctr];
<------><------><------>break;
<------><------>}
<------>}
<------>return conn;
}
 
static void ath6kl_add_new_sta(struct ath6kl_vif *vif, u8 *mac, u16 aid,
<------><------><------>       u8 *wpaie, size_t ielen, u8 keymgmt,
<------><------><------>       u8 ucipher, u8 auth, u8 apsd_info)
{
<------>struct ath6kl *ar = vif->ar;
<------>struct ath6kl_sta *sta;
<------>u8 free_slot;
 
<------>free_slot = aid - 1;
 
<------>sta = &ar->sta_list[free_slot];
<------>memcpy(sta->mac, mac, ETH_ALEN);
<------>if (ielen <= ATH6KL_MAX_IE)
<------><------>memcpy(sta->wpa_ie, wpaie, ielen);
<------>sta->aid = aid;
<------>sta->keymgmt = keymgmt;
<------>sta->ucipher = ucipher;
<------>sta->auth = auth;
<------>sta->apsd_info = apsd_info;
 
<------>ar->sta_list_index = ar->sta_list_index | (1 << free_slot);
<------>ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid);
<------>aggr_conn_init(vif, vif->aggr_cntxt, sta->aggr_conn);
}
 
static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i)
{
<------>struct ath6kl_sta *sta = &ar->sta_list[i];
<------>struct ath6kl_mgmt_buff *entry, *tmp;
 
<------>/* empty the queued pkts in the PS queue if any */
<------>spin_lock_bh(&sta->psq_lock);
<------>skb_queue_purge(&sta->psq);
<------>skb_queue_purge(&sta->apsdq);
 
<------>if (sta->mgmt_psq_len != 0) {
<------><------>list_for_each_entry_safe(entry, tmp, &sta->mgmt_psq, list) {
<------><------><------>kfree(entry);
<------><------>}
<------><------>INIT_LIST_HEAD(&sta->mgmt_psq);
<------><------>sta->mgmt_psq_len = 0;
<------>}
 
<------>spin_unlock_bh(&sta->psq_lock);
 
<------>memset(&ar->ap_stats.sta[sta->aid - 1], 0,
<------>       sizeof(struct wmi_per_sta_stat));
<------>eth_zero_addr(sta->mac);
<------>memset(sta->wpa_ie, 0, ATH6KL_MAX_IE);
<------>sta->aid = 0;
<------>sta->sta_flags = 0;
 
<------>ar->sta_list_index = ar->sta_list_index & ~(1 << i);
<------>aggr_reset_state(sta->aggr_conn);
}
 
static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason)
{
<------>u8 i, removed = 0;
 
<------>if (is_zero_ether_addr(mac))
<------><------>return removed;
 
<------>if (is_broadcast_ether_addr(mac)) {
<------><------>ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n");
 
<------><------>for (i = 0; i < AP_MAX_NUM_STA; i++) {
<------><------><------>if (!is_zero_ether_addr(ar->sta_list[i].mac)) {
<------><------><------><------>ath6kl_sta_cleanup(ar, i);
<------><------><------><------>removed = 1;
<------><------><------>}
<------><------>}
<------>} else {
<------><------>for (i = 0; i < AP_MAX_NUM_STA; i++) {
<------><------><------>if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) {
<------><------><------><------>ath6kl_dbg(ATH6KL_DBG_TRC,
<------><------><------><------><------>   "deleting station %pM aid=%d reason=%d\n",
<------><------><------><------><------>   mac, ar->sta_list[i].aid, reason);
<------><------><------><------>ath6kl_sta_cleanup(ar, i);
<------><------><------><------>removed = 1;
<------><------><------><------>break;
<------><------><------>}
<------><------>}
<------>}
 
<------>return removed;
}
 
enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac)
{
<------>struct ath6kl *ar = devt;
<------>return ar->ac2ep_map[ac];
}
 
struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar)
{
<------>struct ath6kl_cookie *cookie;
 
<------>cookie = ar->cookie_list;
<------>if (cookie != NULL) {
<------><------>ar->cookie_list = cookie->arc_list_next;
<------><------>ar->cookie_count--;
<------>}
 
<------>return cookie;
}
 
void ath6kl_cookie_init(struct ath6kl *ar)
{
<------>u32 i;
 
<------>ar->cookie_list = NULL;
<------>ar->cookie_count = 0;
 
<------>memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem));
 
<------>for (i = 0; i < MAX_COOKIE_NUM; i++)
<------><------>ath6kl_free_cookie(ar, &ar->cookie_mem[i]);
}
 
void ath6kl_cookie_cleanup(struct ath6kl *ar)
{
<------>ar->cookie_list = NULL;
<------>ar->cookie_count = 0;
}
 
void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie)
{
<------>/* Insert first */
 
<------>if (!ar || !cookie)
<------><------>return;
 
<------>cookie->arc_list_next = ar->cookie_list;
<------>ar->cookie_list = cookie;
<------>ar->cookie_count++;
}
 
/*
 * Read from the hardware through its diagnostic window. No cooperation
 * from the firmware is required for this.
 */
int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value)
{
<------>int ret;
 
<------>ret = ath6kl_hif_diag_read32(ar, address, value);
<------>if (ret) {
<------><------>ath6kl_warn("failed to read32 through diagnose window: %d\n",
<------><------><------>    ret);
<------><------>return ret;
<------>}
 
<------>return 0;
}
 
/*
 * Write to the ATH6KL through its diagnostic window. No cooperation from
 * the Target is required for this.
 */
int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value)
{
<------>int ret;
 
<------>ret = ath6kl_hif_diag_write32(ar, address, value);
 
<------>if (ret) {
<------><------>ath6kl_err("failed to write 0x%x during diagnose window to 0x%x\n",
<------><------><------>   address, value);
<------><------>return ret;
<------>}
 
<------>return 0;
}
 
int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length)
{
<------>u32 count, *buf = data;
<------>int ret;
 
<------>if (WARN_ON(length % 4))
<------><------>return -EINVAL;
 
<------>for (count = 0; count < length / 4; count++, address += 4) {
<------><------>ret = ath6kl_diag_read32(ar, address, &buf[count]);
<------><------>if (ret)
<------><------><------>return ret;
<------>}
 
<------>return 0;
}
 
int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length)
{
<------>u32 count;
<------>__le32 *buf = data;
<------>int ret;
 
<------>if (WARN_ON(length % 4))
<------><------>return -EINVAL;
 
<------>for (count = 0; count < length / 4; count++, address += 4) {
<------><------>ret = ath6kl_diag_write32(ar, address, buf[count]);
<------><------>if (ret)
<------><------><------>return ret;
<------>}
 
<------>return 0;
}
 
int ath6kl_read_fwlogs(struct ath6kl *ar)
{
<------>struct ath6kl_dbglog_hdr debug_hdr;
<------>struct ath6kl_dbglog_buf debug_buf;
<------>u32 address, length, firstbuf, debug_hdr_addr;
<------>int ret, loop;
<------>u8 *buf;
 
<------>buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL);
<------>if (!buf)
<------><------>return -ENOMEM;
 
<------>address = TARG_VTOP(ar->target_type,
<------><------><------>    ath6kl_get_hi_item_addr(ar,
<------><------><------><------><------><------>    HI_ITEM(hi_dbglog_hdr)));
 
<------>ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr);
<------>if (ret)
<------><------>goto out;
 
<------>/* Get the contents of the ring buffer */
<------>if (debug_hdr_addr == 0) {
<------><------>ath6kl_warn("Invalid address for debug_hdr_addr\n");
<------><------>ret = -EINVAL;
<------><------>goto out;
<------>}
 
<------>address = TARG_VTOP(ar->target_type, debug_hdr_addr);
<------>ret = ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr));
<------>if (ret)
<------><------>goto out;
 
<------>address = TARG_VTOP(ar->target_type,
<------><------><------>    le32_to_cpu(debug_hdr.dbuf_addr));
<------>firstbuf = address;
<------>ret = ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
<------>if (ret)
<------><------>goto out;
 
<------>loop = 100;
 
<------>do {
<------><------>address = TARG_VTOP(ar->target_type,
<------><------><------><------>    le32_to_cpu(debug_buf.buffer_addr));
<------><------>length = le32_to_cpu(debug_buf.length);
 
<------><------>if (length != 0 && (le32_to_cpu(debug_buf.length) <=
<------><------><------><------>    le32_to_cpu(debug_buf.bufsize))) {
<------><------><------>length = ALIGN(length, 4);
 
<------><------><------>ret = ath6kl_diag_read(ar, address,
<------><------><------><------><------>       buf, length);
<------><------><------>if (ret)
<------><------><------><------>goto out;
 
<------><------><------>ath6kl_debug_fwlog_event(ar, buf, length);
<------><------>}
 
<------><------>address = TARG_VTOP(ar->target_type,
<------><------><------><------>    le32_to_cpu(debug_buf.next));
<------><------>ret = ath6kl_diag_read(ar, address, &debug_buf,
<------><------><------><------>       sizeof(debug_buf));
<------><------>if (ret)
<------><------><------>goto out;
 
<------><------>loop--;
 
<------><------>if (WARN_ON(loop == 0)) {
<------><------><------>ret = -ETIMEDOUT;
<------><------><------>goto out;
<------><------>}
<------>} while (address != firstbuf);
 
out:
<------>kfree(buf);
 
<------>return ret;
}
 
static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif)
{
<------>u8 index;
<------>u8 keyusage;
 
<------>for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) {
<------><------>if (vif->wep_key_list[index].key_len) {
<------><------><------>keyusage = GROUP_USAGE;
<------><------><------>if (index == vif->def_txkey_index)
<------><------><------><------>keyusage |= TX_USAGE;
 
<------><------><------>ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------>      index,
<------><------><------><------><------>      WEP_CRYPT,
<------><------><------><------><------>      keyusage,
<------><------><------><------><------>      vif->wep_key_list[index].key_len,
<------><------><------><------><------>      NULL, 0,
<------><------><------><------><------>      vif->wep_key_list[index].key,
<------><------><------><------><------>      KEY_OP_INIT_VAL, NULL,
<------><------><------><------><------>      NO_SYNC_WMIFLAG);
<------><------>}
<------>}
}
 
void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel)
{
<------>struct ath6kl *ar = vif->ar;
<------>struct ath6kl_req_key *ik;
<------>int res;
<------>u8 key_rsc[ATH6KL_KEY_SEQ_LEN];
 
<------>ik = &ar->ap_mode_bkey;
 
<------>ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel);
 
<------>switch (vif->auth_mode) {
<------>case NONE_AUTH:
<------><------>if (vif->prwise_crypto == WEP_CRYPT)
<------><------><------>ath6kl_install_static_wep_keys(vif);
<------><------>if (!ik->valid || ik->key_type != WAPI_CRYPT)
<------><------><------>break;
<------><------>/* for WAPI, we need to set the delayed group key, continue: */
<------><------>fallthrough;
<------>case WPA_PSK_AUTH:
<------>case WPA2_PSK_AUTH:
<------>case (WPA_PSK_AUTH | WPA2_PSK_AUTH):
<------><------>if (!ik->valid)
<------><------><------>break;
 
<------><------>ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
<------><------><------>   "Delayed addkey for the initial group key for AP mode\n");
<------><------>memset(key_rsc, 0, sizeof(key_rsc));
<------><------>res = ath6kl_wmi_addkey_cmd(
<------><------><------>ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type,
<------><------><------>GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN,
<------><------><------>ik->key,
<------><------><------>KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
<------><------>if (res) {
<------><------><------>ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
<------><------><------><------>   "Delayed addkey failed: %d\n", res);
<------><------>}
<------><------>break;
<------>}
 
<------>if (ar->last_ch != channel)
<------><------>/* we actually don't know the phymode, default to HT20 */
<------><------>ath6kl_cfg80211_ch_switch_notify(vif, channel, WMI_11G_HT20);
 
<------>ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0);
<------>set_bit(CONNECTED, &vif->flags);
<------>netif_carrier_on(vif->ndev);
}
 
void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
<------><------><------><------>u8 keymgmt, u8 ucipher, u8 auth,
<------><------><------><------>u8 assoc_req_len, u8 *assoc_info, u8 apsd_info)
{
<------>u8 *ies = NULL, *wpa_ie = NULL, *pos;
<------>size_t ies_len = 0;
<------>struct station_info *sinfo;
 
<------>ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid);
 
<------>if (aid < 1 || aid > AP_MAX_NUM_STA)
<------><------>return;
 
<------>if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) {
<------><------>struct ieee80211_mgmt *mgmt =
<------><------><------>(struct ieee80211_mgmt *) assoc_info;
<------><------>if (ieee80211_is_assoc_req(mgmt->frame_control) &&
<------><------>    assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) +
<------><------>    sizeof(mgmt->u.assoc_req)) {
<------><------><------>ies = mgmt->u.assoc_req.variable;
<------><------><------>ies_len = assoc_info + assoc_req_len - ies;
<------><------>} else if (ieee80211_is_reassoc_req(mgmt->frame_control) &&
<------><------><------>   assoc_req_len >= sizeof(struct ieee80211_hdr_3addr)
<------><------><------>   + sizeof(mgmt->u.reassoc_req)) {
<------><------><------>ies = mgmt->u.reassoc_req.variable;
<------><------><------>ies_len = assoc_info + assoc_req_len - ies;
<------><------>}
<------>}
 
<------>pos = ies;
<------>while (pos && pos + 1 < ies + ies_len) {
<------><------>if (pos + 2 + pos[1] > ies + ies_len)
<------><------><------>break;
<------><------>if (pos[0] == WLAN_EID_RSN)
<------><------><------>wpa_ie = pos; /* RSN IE */
<------><------>else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
<------><------><------> pos[1] >= 4 &&
<------><------><------> pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) {
<------><------><------>if (pos[5] == 0x01)
<------><------><------><------>wpa_ie = pos; /* WPA IE */
<------><------><------>else if (pos[5] == 0x04) {
<------><------><------><------>wpa_ie = pos; /* WPS IE */
<------><------><------><------>break; /* overrides WPA/RSN IE */
<------><------><------>}
<------><------>} else if (pos[0] == 0x44 && wpa_ie == NULL) {
<------><------><------>/*
<------><------><------> * Note: WAPI Parameter Set IE re-uses Element ID that
<------><------><------> * was officially allocated for BSS AC Access Delay. As
<------><------><------> * such, we need to be a bit more careful on when
<------><------><------> * parsing the frame. However, BSS AC Access Delay
<------><------><------> * element is not supposed to be included in
<------><------><------> * (Re)Association Request frames, so this should not
<------><------><------> * cause problems.
<------><------><------> */
<------><------><------>wpa_ie = pos; /* WAPI IE */
<------><------><------>break;
<------><------>}
<------><------>pos += 2 + pos[1];
<------>}
 
<------>ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie,
<------><------><------>   wpa_ie ? 2 + wpa_ie[1] : 0,
<------><------><------>   keymgmt, ucipher, auth, apsd_info);
 
<------>/* send event to application */
<------>sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
<------>if (!sinfo)
<------><------>return;
 
<------>/* TODO: sinfo.generation */
 
<------>sinfo->assoc_req_ies = ies;
<------>sinfo->assoc_req_ies_len = ies_len;
 
<------>cfg80211_new_sta(vif->ndev, mac_addr, sinfo, GFP_KERNEL);
 
<------>netif_wake_queue(vif->ndev);
 
<------>kfree(sinfo);
}
 
void disconnect_timer_handler(struct timer_list *t)
{
<------>struct ath6kl_vif *vif = from_timer(vif, t, disconnect_timer);
 
<------>ath6kl_init_profile_info(vif);
<------>ath6kl_disconnect(vif);
}
 
void ath6kl_disconnect(struct ath6kl_vif *vif)
{
<------>if (test_bit(CONNECTED, &vif->flags) ||
<------>    test_bit(CONNECT_PEND, &vif->flags)) {
<------><------>ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
<------><------>/*
<------><------> * Disconnect command is issued, clear the connect pending
<------><------> * flag. The connected flag will be cleared in
<------><------> * disconnect event notification.
<------><------> */
<------><------>clear_bit(CONNECT_PEND, &vif->flags);
<------>}
}
 
/* WMI Event handlers */
 
void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver,
<------><------><------>enum wmi_phy_cap cap)
{
<------>struct ath6kl *ar = devt;
 
<------>memcpy(ar->mac_addr, datap, ETH_ALEN);
 
<------>ath6kl_dbg(ATH6KL_DBG_BOOT,
<------><------>   "ready event mac addr %pM sw_ver 0x%x abi_ver 0x%x cap 0x%x\n",
<------><------>   ar->mac_addr, sw_ver, abi_ver, cap);
 
<------>ar->version.wlan_ver = sw_ver;
<------>ar->version.abi_ver = abi_ver;
<------>ar->hw.cap = cap;
 
<------>if (strlen(ar->wiphy->fw_version) == 0) {
<------><------>snprintf(ar->wiphy->fw_version,
<------><------><------> sizeof(ar->wiphy->fw_version),
<------><------><------> "%u.%u.%u.%u",
<------><------><------> (ar->version.wlan_ver & 0xf0000000) >> 28,
<------><------><------> (ar->version.wlan_ver & 0x0f000000) >> 24,
<------><------><------> (ar->version.wlan_ver & 0x00ff0000) >> 16,
<------><------><------> (ar->version.wlan_ver & 0x0000ffff));
<------>}
 
<------>/* indicate to the waiting thread that the ready event was received */
<------>set_bit(WMI_READY, &ar->flag);
<------>wake_up(&ar->event_wq);
}
 
void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
{
<------>struct ath6kl *ar = vif->ar;
<------>bool aborted = false;
 
<------>if (status != WMI_SCAN_STATUS_SUCCESS)
<------><------>aborted = true;
 
<------>ath6kl_cfg80211_scan_complete_event(vif, aborted);
 
<------>if (!ar->usr_bss_filter) {
<------><------>clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
<------><------>ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------> NONE_BSS_FILTER, 0);
<------>}
 
<------>ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);
}
 
static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel)
{
<------>struct ath6kl *ar = vif->ar;
 
<------>vif->profile.ch = cpu_to_le16(channel);
 
<------>switch (vif->nw_type) {
<------>case AP_NETWORK:
<------><------>/*
<------><------> * reconfigure any saved RSN IE capabilites in the beacon /
<------><------> * probe response to stay in sync with the supplicant.
<------><------> */
<------><------>if (vif->rsn_capab &&
<------><------>    test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
<------><------><------>     ar->fw_capabilities))
<------><------><------>ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------>      WLAN_EID_RSN, WMI_RSN_IE_CAPB,
<------><------><------><------><------>      (const u8 *) &vif->rsn_capab,
<------><------><------><------><------>      sizeof(vif->rsn_capab));
 
<------><------>return ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------><------>    &vif->profile);
<------>default:
<------><------>ath6kl_err("won't switch channels nw_type=%d\n", vif->nw_type);
<------><------>return -ENOTSUPP;
<------>}
}
 
static void ath6kl_check_ch_switch(struct ath6kl *ar, u16 channel)
{
<------>struct ath6kl_vif *vif;
<------>int res = 0;
 
<------>if (!ar->want_ch_switch)
<------><------>return;
 
<------>spin_lock_bh(&ar->list_lock);
<------>list_for_each_entry(vif, &ar->vif_list, list) {
<------><------>if (ar->want_ch_switch & (1 << vif->fw_vif_idx))
<------><------><------>res = ath6kl_commit_ch_switch(vif, channel);
 
<------><------>/* if channel switch failed, oh well we tried */
<------><------>ar->want_ch_switch &= ~(1 << vif->fw_vif_idx);
 
<------><------>if (res)
<------><------><------>ath6kl_err("channel switch failed nw_type %d res %d\n",
<------><------><------><------>   vif->nw_type, res);
<------>}
<------>spin_unlock_bh(&ar->list_lock);
}
 
void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
<------><------><------>  u16 listen_int, u16 beacon_int,
<------><------><------>  enum network_type net_type, u8 beacon_ie_len,
<------><------><------>  u8 assoc_req_len, u8 assoc_resp_len,
<------><------><------>  u8 *assoc_info)
{
<------>struct ath6kl *ar = vif->ar;
 
<------>ath6kl_cfg80211_connect_event(vif, channel, bssid,
<------><------><------><------>      listen_int, beacon_int,
<------><------><------><------>      net_type, beacon_ie_len,
<------><------><------><------>      assoc_req_len, assoc_resp_len,
<------><------><------><------>      assoc_info);
 
<------>memcpy(vif->bssid, bssid, sizeof(vif->bssid));
<------>vif->bss_ch = channel;
 
<------>if (vif->nw_type == INFRA_NETWORK) {
<------><------>ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------>      vif->listen_intvl_t, 0);
<------><------>ath6kl_check_ch_switch(ar, channel);
<------>}
 
<------>netif_wake_queue(vif->ndev);
 
<------>/* Update connect & link status atomically */
<------>spin_lock_bh(&vif->if_lock);
<------>set_bit(CONNECTED, &vif->flags);
<------>clear_bit(CONNECT_PEND, &vif->flags);
<------>netif_carrier_on(vif->ndev);
<------>spin_unlock_bh(&vif->if_lock);
 
<------>aggr_reset_state(vif->aggr_cntxt->aggr_conn);
<------>vif->reconnect_flag = 0;
 
<------>if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
<------><------>memset(ar->node_map, 0, sizeof(ar->node_map));
<------><------>ar->node_num = 0;
<------><------>ar->next_ep_id = ENDPOINT_2;
<------>}
 
<------>if (!ar->usr_bss_filter) {
<------><------>set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
<------><------>ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------> CURRENT_BSS_FILTER, 0);
<------>}
}
 
void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
{
<------>struct ath6kl_sta *sta;
<------>struct ath6kl *ar = vif->ar;
<------>u8 tsc[6];
 
<------>/*
<------> * For AP case, keyid will have aid of STA which sent pkt with
<------> * MIC error. Use this aid to get MAC & send it to hostapd.
<------> */
<------>if (vif->nw_type == AP_NETWORK) {
<------><------>sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
<------><------>if (!sta)
<------><------><------>return;
 
<------><------>ath6kl_dbg(ATH6KL_DBG_TRC,
<------><------><------>   "ap tkip mic error received from aid=%d\n", keyid);
 
<------><------>memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
<------><------>cfg80211_michael_mic_failure(vif->ndev, sta->mac,
<------><------><------><------><------>     NL80211_KEYTYPE_PAIRWISE, keyid,
<------><------><------><------><------>     tsc, GFP_KERNEL);
<------>} else {
<------><------>ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
<------>}
}
 
static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
{
<------>struct wmi_target_stats *tgt_stats =
<------><------>(struct wmi_target_stats *) ptr;
<------>struct ath6kl *ar = vif->ar;
<------>struct target_stats *stats = &vif->target_stats;
<------>struct tkip_ccmp_stats *ccmp_stats;
<------>s32 rate;
<------>u8 ac;
 
<------>if (len < sizeof(*tgt_stats))
<------><------>return;
 
<------>ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n");
 
<------>stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt);
<------>stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte);
<------>stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt);
<------>stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte);
<------>stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt);
<------>stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte);
<------>stats->tx_bcast_pkt  += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt);
<------>stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte);
<------>stats->tx_rts_success_cnt +=
<------><------>le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt);
 
<------>for (ac = 0; ac < WMM_NUM_AC; ac++)
<------><------>stats->tx_pkt_per_ac[ac] +=
<------><------><------>le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]);
 
<------>stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err);
<------>stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt);
<------>stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt);
<------>stats->tx_mult_retry_cnt +=
<------><------>le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt);
<------>stats->tx_rts_fail_cnt +=
<------><------>le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt);
 
<------>rate = a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate);
<------>stats->tx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, rate);
 
<------>stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt);
<------>stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte);
<------>stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt);
<------>stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte);
<------>stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt);
<------>stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte);
<------>stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt);
<------>stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte);
<------>stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt);
<------>stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err);
<------>stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err);
<------>stats->rx_key_cache_miss +=
<------><------>le32_to_cpu(tgt_stats->stats.rx.key_cache_miss);
<------>stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err);
<------>stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame);
 
<------>rate = a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate);
<------>stats->rx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, rate);
 
<------>ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats;
 
<------>stats->tkip_local_mic_fail +=
<------><------>le32_to_cpu(ccmp_stats->tkip_local_mic_fail);
<------>stats->tkip_cnter_measures_invoked +=
<------><------>le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked);
<------>stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err);
 
<------>stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err);
<------>stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays);
 
<------>stats->pwr_save_fail_cnt +=
<------><------>le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt);
<------>stats->noise_floor_calib =
<------><------>a_sle32_to_cpu(tgt_stats->noise_floor_calib);
 
<------>stats->cs_bmiss_cnt +=
<------><------>le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt);
<------>stats->cs_low_rssi_cnt +=
<------><------>le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt);
<------>stats->cs_connect_cnt +=
<------><------>le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt);
<------>stats->cs_discon_cnt +=
<------><------>le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt);
 
<------>stats->cs_ave_beacon_rssi =
<------><------>a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi);
 
<------>stats->cs_last_roam_msec =
<------><------>tgt_stats->cserv_stats.cs_last_roam_msec;
<------>stats->cs_snr = tgt_stats->cserv_stats.cs_snr;
<------>stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi);
 
<------>stats->lq_val = le32_to_cpu(tgt_stats->lq_val);
 
<------>stats->wow_pkt_dropped +=
<------><------>le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped);
<------>stats->wow_host_pkt_wakeups +=
<------><------>tgt_stats->wow_stats.wow_host_pkt_wakeups;
<------>stats->wow_host_evt_wakeups +=
<------><------>tgt_stats->wow_stats.wow_host_evt_wakeups;
<------>stats->wow_evt_discarded +=
<------><------>le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
 
<------>stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received);
<------>stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied);
<------>stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched);
 
<------>if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
<------><------>clear_bit(STATS_UPDATE_PEND, &vif->flags);
<------><------>wake_up(&ar->event_wq);
<------>}
}
 
static void ath6kl_add_le32(__le32 *var, __le32 val)
{
<------>*var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
}
 
void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len)
{
<------>struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
<------>struct ath6kl *ar = vif->ar;
<------>struct wmi_ap_mode_stat *ap = &ar->ap_stats;
<------>struct wmi_per_sta_stat *st_ap, *st_p;
<------>u8 ac;
 
<------>if (vif->nw_type == AP_NETWORK) {
<------><------>if (len < sizeof(*p))
<------><------><------>return;
 
<------><------>for (ac = 0; ac < AP_MAX_NUM_STA; ac++) {
<------><------><------>st_ap = &ap->sta[ac];
<------><------><------>st_p = &p->sta[ac];
 
<------><------><------>ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes);
<------><------><------>ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);
<------><------><------>ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);
<------><------><------>ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);
<------><------><------>ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);
<------><------><------>ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);
<------><------><------>ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);
<------><------><------>ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);
<------><------>}
 
<------>} else {
<------><------>ath6kl_update_target_stats(vif, ptr, len);
<------>}
}
 
void ath6kl_wakeup_event(void *dev)
{
<------>struct ath6kl *ar = (struct ath6kl *) dev;
 
<------>wake_up(&ar->event_wq);
}
 
void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
{
<------>struct ath6kl *ar = (struct ath6kl *) devt;
 
<------>ar->tx_pwr = tx_pwr;
<------>wake_up(&ar->event_wq);
}
 
void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid)
{
<------>struct ath6kl_sta *conn;
<------>struct sk_buff *skb;
<------>bool psq_empty = false;
<------>struct ath6kl *ar = vif->ar;
<------>struct ath6kl_mgmt_buff *mgmt_buf;
 
<------>conn = ath6kl_find_sta_by_aid(ar, aid);
 
<------>if (!conn)
<------><------>return;
<------>/*
<------> * Send out a packet queued on ps queue. When the ps queue
<------> * becomes empty update the PVB for this station.
<------> */
<------>spin_lock_bh(&conn->psq_lock);
<------>psq_empty  = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
<------>spin_unlock_bh(&conn->psq_lock);
 
<------>if (psq_empty)
<------><------>/* TODO: Send out a NULL data frame */
<------><------>return;
 
<------>spin_lock_bh(&conn->psq_lock);
<------>if (conn->mgmt_psq_len > 0) {
<------><------>mgmt_buf = list_first_entry(&conn->mgmt_psq,
<------><------><------><------><------>struct ath6kl_mgmt_buff, list);
<------><------>list_del(&mgmt_buf->list);
<------><------>conn->mgmt_psq_len--;
<------><------>spin_unlock_bh(&conn->psq_lock);
 
<------><------>conn->sta_flags |= STA_PS_POLLED;
<------><------>ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------> mgmt_buf->id, mgmt_buf->freq,
<------><------><------><------><------> mgmt_buf->wait, mgmt_buf->buf,
<------><------><------><------><------> mgmt_buf->len, mgmt_buf->no_cck);
<------><------>conn->sta_flags &= ~STA_PS_POLLED;
<------><------>kfree(mgmt_buf);
<------>} else {
<------><------>skb = skb_dequeue(&conn->psq);
<------><------>spin_unlock_bh(&conn->psq_lock);
 
<------><------>conn->sta_flags |= STA_PS_POLLED;
<------><------>ath6kl_data_tx(skb, vif->ndev);
<------><------>conn->sta_flags &= ~STA_PS_POLLED;
<------>}
 
<------>spin_lock_bh(&conn->psq_lock);
<------>psq_empty  = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
<------>spin_unlock_bh(&conn->psq_lock);
 
<------>if (psq_empty)
<------><------>ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);
}
 
void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif)
{
<------>bool mcastq_empty = false;
<------>struct sk_buff *skb;
<------>struct ath6kl *ar = vif->ar;
 
<------>/*
<------> * If there are no associated STAs, ignore the DTIM expiry event.
<------> * There can be potential race conditions where the last associated
<------> * STA may disconnect & before the host could clear the 'Indicate
<------> * DTIM' request to the firmware, the firmware would have just
<------> * indicated a DTIM expiry event. The race is between 'clear DTIM
<------> * expiry cmd' going from the host to the firmware & the DTIM
<------> * expiry event happening from the firmware to the host.
<------> */
<------>if (!ar->sta_list_index)
<------><------>return;
 
<------>spin_lock_bh(&ar->mcastpsq_lock);
<------>mcastq_empty = skb_queue_empty(&ar->mcastpsq);
<------>spin_unlock_bh(&ar->mcastpsq_lock);
 
<------>if (mcastq_empty)
<------><------>return;
 
<------>/* set the STA flag to dtim_expired for the frame to go out */
<------>set_bit(DTIM_EXPIRED, &vif->flags);
 
<------>spin_lock_bh(&ar->mcastpsq_lock);
<------>while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
<------><------>spin_unlock_bh(&ar->mcastpsq_lock);
 
<------><------>ath6kl_data_tx(skb, vif->ndev);
 
<------><------>spin_lock_bh(&ar->mcastpsq_lock);
<------>}
<------>spin_unlock_bh(&ar->mcastpsq_lock);
 
<------>clear_bit(DTIM_EXPIRED, &vif->flags);
 
<------>/* clear the LSB of the BitMapCtl field of the TIM IE */
<------>ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);
}
 
void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
<------><------><------>     u8 assoc_resp_len, u8 *assoc_info,
<------><------><------>     u16 prot_reason_status)
{
<------>struct ath6kl *ar = vif->ar;
 
<------>if (vif->nw_type == AP_NETWORK) {
<------><------>/* disconnect due to other STA vif switching channels */
<------><------>if (reason == BSS_DISCONNECTED &&
<------><------>    prot_reason_status == WMI_AP_REASON_STA_ROAM) {
<------><------><------>ar->want_ch_switch |= 1 << vif->fw_vif_idx;
<------><------><------>/* bail back to this channel if STA vif fails connect */
<------><------><------>ar->last_ch = le16_to_cpu(vif->profile.ch);
<------><------>}
 
<------><------>if (prot_reason_status == WMI_AP_REASON_MAX_STA) {
<------><------><------>/* send max client reached notification to user space */
<------><------><------>cfg80211_conn_failed(vif->ndev, bssid,
<------><------><------><------><------>     NL80211_CONN_FAIL_MAX_CLIENTS,
<------><------><------><------><------>     GFP_KERNEL);
<------><------>}
 
<------><------>if (prot_reason_status == WMI_AP_REASON_ACL) {
<------><------><------>/* send blocked client notification to user space */
<------><------><------>cfg80211_conn_failed(vif->ndev, bssid,
<------><------><------><------><------>     NL80211_CONN_FAIL_BLOCKED_CLIENT,
<------><------><------><------><------>     GFP_KERNEL);
<------><------>}
 
<------><------>if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
<------><------><------>return;
 
<------><------>/* if no more associated STAs, empty the mcast PS q */
<------><------>if (ar->sta_list_index == 0) {
<------><------><------>spin_lock_bh(&ar->mcastpsq_lock);
<------><------><------>skb_queue_purge(&ar->mcastpsq);
<------><------><------>spin_unlock_bh(&ar->mcastpsq_lock);
 
<------><------><------>/* clear the LSB of the TIM IE's BitMapCtl field */
<------><------><------>if (test_bit(WMI_READY, &ar->flag))
<------><------><------><------>ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------><------>       MCAST_AID, 0);
<------><------>}
 
<------><------>if (!is_broadcast_ether_addr(bssid)) {
<------><------><------>/* send event to application */
<------><------><------>cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);
<------><------>}
 
<------><------>if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {
<------><------><------>memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
<------><------><------>clear_bit(CONNECTED, &vif->flags);
<------><------>}
<------><------>return;
<------>}
 
<------>ath6kl_cfg80211_disconnect_event(vif, reason, bssid,
<------><------><------><------><------> assoc_resp_len, assoc_info,
<------><------><------><------><------> prot_reason_status);
 
<------>aggr_reset_state(vif->aggr_cntxt->aggr_conn);
 
<------>del_timer(&vif->disconnect_timer);
 
<------>ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);
 
<------>/*
<------> * If the event is due to disconnect cmd from the host, only they
<------> * the target would stop trying to connect. Under any other
<------> * condition, target would keep trying to connect.
<------> */
<------>if (reason == DISCONNECT_CMD) {
<------><------>if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
<------><------><------>ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------><------> NONE_BSS_FILTER, 0);
<------>} else {
<------><------>set_bit(CONNECT_PEND, &vif->flags);
<------><------>if (((reason == ASSOC_FAILED) &&
<------><------>     (prot_reason_status == 0x11)) ||
<------><------>    ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) &&
<------><------>     (vif->reconnect_flag == 1))) {
<------><------><------>set_bit(CONNECTED, &vif->flags);
<------><------><------>return;
<------><------>}
<------>}
 
<------>/* restart disconnected concurrent vifs waiting for new channel */
<------>ath6kl_check_ch_switch(ar, ar->last_ch);
 
<------>/* update connect & link status atomically */
<------>spin_lock_bh(&vif->if_lock);
<------>clear_bit(CONNECTED, &vif->flags);
<------>netif_carrier_off(vif->ndev);
<------>spin_unlock_bh(&vif->if_lock);
 
<------>if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
<------><------>vif->reconnect_flag = 0;
 
<------>if (reason != CSERV_DISCONNECT)
<------><------>ar->user_key_ctrl = 0;
 
<------>netif_stop_queue(vif->ndev);
<------>memset(vif->bssid, 0, sizeof(vif->bssid));
<------>vif->bss_ch = 0;
 
<------>ath6kl_tx_data_cleanup(ar);
}
 
struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
{
<------>struct ath6kl_vif *vif;
 
<------>spin_lock_bh(&ar->list_lock);
<------>if (list_empty(&ar->vif_list)) {
<------><------>spin_unlock_bh(&ar->list_lock);
<------><------>return NULL;
<------>}
 
<------>vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list);
 
<------>spin_unlock_bh(&ar->list_lock);
 
<------>return vif;
}
 
static int ath6kl_open(struct net_device *dev)
{
<------>struct ath6kl_vif *vif = netdev_priv(dev);
 
<------>set_bit(WLAN_ENABLED, &vif->flags);
 
<------>if (test_bit(CONNECTED, &vif->flags)) {
<------><------>netif_carrier_on(dev);
<------><------>netif_wake_queue(dev);
<------>} else {
<------><------>netif_carrier_off(dev);
<------>}
 
<------>return 0;
}
 
static int ath6kl_close(struct net_device *dev)
{
<------>struct ath6kl_vif *vif = netdev_priv(dev);
 
<------>netif_stop_queue(dev);
 
<------>ath6kl_cfg80211_stop(vif);
 
<------>clear_bit(WLAN_ENABLED, &vif->flags);
 
<------>return 0;
}
 
static int ath6kl_set_features(struct net_device *dev,
<------><------><------>       netdev_features_t features)
{
<------>struct ath6kl_vif *vif = netdev_priv(dev);
<------>struct ath6kl *ar = vif->ar;
<------>int err = 0;
 
<------>if ((features & NETIF_F_RXCSUM) &&
<------>    (ar->rx_meta_ver != WMI_META_VERSION_2)) {
<------><------>ar->rx_meta_ver = WMI_META_VERSION_2;
<------><------>err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
<------><------><------><------><------><------><------> vif->fw_vif_idx,
<------><------><------><------><------><------><------> ar->rx_meta_ver, 0, 0);
<------><------>if (err) {
<------><------><------>dev->features = features & ~NETIF_F_RXCSUM;
<------><------><------>return err;
<------><------>}
<------>} else if (!(features & NETIF_F_RXCSUM) &&
<------><------>   (ar->rx_meta_ver == WMI_META_VERSION_2)) {
<------><------>ar->rx_meta_ver = 0;
<------><------>err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
<------><------><------><------><------><------><------> vif->fw_vif_idx,
<------><------><------><------><------><------><------> ar->rx_meta_ver, 0, 0);
<------><------>if (err) {
<------><------><------>dev->features = features | NETIF_F_RXCSUM;
<------><------><------>return err;
<------><------>}
<------>}
 
<------>return err;
}
 
static void ath6kl_set_multicast_list(struct net_device *ndev)
{
<------>struct ath6kl_vif *vif = netdev_priv(ndev);
<------>bool mc_all_on = false;
<------>int mc_count = netdev_mc_count(ndev);
<------>struct netdev_hw_addr *ha;
<------>bool found;
<------>struct ath6kl_mc_filter *mc_filter, *tmp;
<------>struct list_head mc_filter_new;
<------>int ret;
 
<------>if (!test_bit(WMI_READY, &vif->ar->flag) ||
<------>    !test_bit(WLAN_ENABLED, &vif->flags))
<------><------>return;
 
<------>/* Enable multicast-all filter. */
<------>mc_all_on = !!(ndev->flags & IFF_PROMISC) ||
<------><------>    !!(ndev->flags & IFF_ALLMULTI) ||
<------><------>    !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST);
 
<------>if (mc_all_on)
<------><------>set_bit(NETDEV_MCAST_ALL_ON, &vif->flags);
<------>else
<------><------>clear_bit(NETDEV_MCAST_ALL_ON, &vif->flags);
 
<------>if (test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
<------><------>     vif->ar->fw_capabilities)) {
<------><------>mc_all_on = mc_all_on || (vif->ar->state == ATH6KL_STATE_ON);
<------>}
 
<------>if (!(ndev->flags & IFF_MULTICAST)) {
<------><------>mc_all_on = false;
<------><------>set_bit(NETDEV_MCAST_ALL_OFF, &vif->flags);
<------>} else {
<------><------>clear_bit(NETDEV_MCAST_ALL_OFF, &vif->flags);
<------>}
 
<------>/* Enable/disable "multicast-all" filter*/
<------>ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast-all filter\n",
<------><------>   mc_all_on ? "enabling" : "disabling");
 
<------>ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx,
<------><------><------><------><------><------>  mc_all_on);
<------>if (ret) {
<------><------>ath6kl_warn("Failed to %s multicast-all receive\n",
<------><------><------>    mc_all_on ? "enable" : "disable");
<------><------>return;
<------>}
 
<------>if (test_bit(NETDEV_MCAST_ALL_ON, &vif->flags))
<------><------>return;
 
<------>/* Keep the driver and firmware mcast list in sync. */
<------>list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
<------><------>found = false;
<------><------>netdev_for_each_mc_addr(ha, ndev) {
<------><------><------>if (memcmp(ha->addr, mc_filter->hw_addr,
<------><------><------><------>   ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
<------><------><------><------>found = true;
<------><------><------><------>break;
<------><------><------>}
<------><------>}
 
<------><------>if (!found) {
<------><------><------>/*
<------><------><------> * Delete the filter which was previously set
<------><------><------> * but not in the new request.
<------><------><------> */
<------><------><------>ath6kl_dbg(ATH6KL_DBG_TRC,
<------><------><------><------>   "Removing %pM from multicast filter\n",
<------><------><------><------>   mc_filter->hw_addr);
<------><------><------>ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
<------><------><------><------><------>vif->fw_vif_idx, mc_filter->hw_addr,
<------><------><------><------><------>false);
<------><------><------>if (ret) {
<------><------><------><------>ath6kl_warn("Failed to remove multicast filter:%pM\n",
<------><------><------><------><------>    mc_filter->hw_addr);
<------><------><------><------>return;
<------><------><------>}
 
<------><------><------>list_del(&mc_filter->list);
<------><------><------>kfree(mc_filter);
<------><------>}
<------>}
 
<------>INIT_LIST_HEAD(&mc_filter_new);
 
<------>netdev_for_each_mc_addr(ha, ndev) {
<------><------>found = false;
<------><------>list_for_each_entry(mc_filter, &vif->mc_filter, list) {
<------><------><------>if (memcmp(ha->addr, mc_filter->hw_addr,
<------><------><------><------>   ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
<------><------><------><------>found = true;
<------><------><------><------>break;
<------><------><------>}
<------><------>}
 
<------><------>if (!found) {
<------><------><------>mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter),
<------><------><------><------><------>    GFP_ATOMIC);
<------><------><------>if (!mc_filter) {
<------><------><------><------>WARN_ON(1);
<------><------><------><------>goto out;
<------><------><------>}
 
<------><------><------>memcpy(mc_filter->hw_addr, ha->addr,
<------><------><------>       ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
<------><------><------>/* Set the multicast filter */
<------><------><------>ath6kl_dbg(ATH6KL_DBG_TRC,
<------><------><------><------>   "Adding %pM to multicast filter list\n",
<------><------><------><------>   mc_filter->hw_addr);
<------><------><------>ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
<------><------><------><------><------>vif->fw_vif_idx, mc_filter->hw_addr,
<------><------><------><------><------>true);
<------><------><------>if (ret) {
<------><------><------><------>ath6kl_warn("Failed to add multicast filter :%pM\n",
<------><------><------><------><------>    mc_filter->hw_addr);
<------><------><------><------>kfree(mc_filter);
<------><------><------><------>goto out;
<------><------><------>}
 
<------><------><------>list_add_tail(&mc_filter->list, &mc_filter_new);
<------><------>}
<------>}
 
out:
<------>list_splice_tail(&mc_filter_new, &vif->mc_filter);
}
 
static const struct net_device_ops ath6kl_netdev_ops = {
<------>.ndo_open               = ath6kl_open,
<------>.ndo_stop               = ath6kl_close,
<------>.ndo_start_xmit         = ath6kl_data_tx,
<------>.ndo_set_features       = ath6kl_set_features,
<------>.ndo_set_rx_mode	= ath6kl_set_multicast_list,
};
 
void init_netdev(struct net_device *dev)
{
<------>struct ath6kl *ar = ath6kl_priv(dev);
 
<------>dev->netdev_ops = &ath6kl_netdev_ops;
<------>dev->needs_free_netdev = true;
<------>dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
 
<------>dev->needed_headroom = ETH_HLEN;
<------>dev->needed_headroom += roundup(sizeof(struct ath6kl_llc_snap_hdr) +
<------><------><------><------><------>sizeof(struct wmi_data_hdr) +
<------><------><------><------><------>HTC_HDR_LENGTH +
<------><------><------><------><------>WMI_MAX_TX_META_SZ +
<------><------><------><------><------>ATH6KL_HTC_ALIGN_BYTES, 4);
 
<------>if (!test_bit(ATH6KL_FW_CAPABILITY_NO_IP_CHECKSUM,
<------><------>      ar->fw_capabilities))
<------><------>dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
 
<------>return;
}