From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/net/wireless/ath/wcn36xx/pmc.c | 74 ++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 drivers/net/wireless/ath/wcn36xx/pmc.c (limited to 'drivers/net/wireless/ath/wcn36xx/pmc.c') diff --git a/drivers/net/wireless/ath/wcn36xx/pmc.c b/drivers/net/wireless/ath/wcn36xx/pmc.c new file mode 100644 index 000000000..2c660458b --- /dev/null +++ b/drivers/net/wireless/ath/wcn36xx/pmc.c @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2013 Eugene Krasnikov + * + * 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" + +#define WCN36XX_BMPS_FAIL_THREHOLD 3 + +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_priv->bmps_fail_ct = 0; + 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"); + + if (vif_priv->bmps_fail_ct++ == WCN36XX_BMPS_FAIL_THREHOLD) { + ieee80211_connection_loss(vif); + vif_priv->bmps_fail_ct = 0; + } + } + 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); +} -- cgit v1.2.3