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/*
* Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
*
* 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 "wcn36xx.h"
int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn,
struct ieee80211_vif *vif)
{
int ret = 0;
struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
/* TODO: Make sure the TX chain clean */
ret = wcn36xx_smd_enter_bmps(wcn, vif);
if (!ret) {
wcn36xx_dbg(WCN36XX_DBG_PMC, "Entered BMPS\n");
vif_priv->pw_state = WCN36XX_BMPS;
vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
} else {
/*
* One of the reasons why HW will not enter BMPS is because
* driver is trying to enter bmps before first beacon was
* received just after auth complete
*/
wcn36xx_err("Can not enter BMPS!\n");
}
return ret;
}
int wcn36xx_pmc_exit_bmps_state(struct wcn36xx *wcn,
struct ieee80211_vif *vif)
{
struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
if (WCN36XX_BMPS != vif_priv->pw_state) {
/* Unbalanced call or last BMPS enter failed */
wcn36xx_dbg(WCN36XX_DBG_PMC,
"Not in BMPS mode, no need to exit\n");
return -EALREADY;
}
wcn36xx_smd_exit_bmps(wcn, vif);
vif_priv->pw_state = WCN36XX_FULL_POWER;
vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
return 0;
}
int wcn36xx_enable_keep_alive_null_packet(struct wcn36xx *wcn,
struct ieee80211_vif *vif)
{
wcn36xx_dbg(WCN36XX_DBG_PMC, "%s\n", __func__);
return wcn36xx_smd_keep_alive_req(wcn, vif,
WCN36XX_HAL_KEEP_ALIVE_NULL_PKT);
}
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