![Frank A. Cancio Bello](/assets/img/avatar_default.png)
This commit arrange function declaration in one line to avoid lines ending with '(' and comply in that way with the preferred coding style for the linux kernel. Suggested-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Frank A. Cancio Bello <frank@generalsoftwareinc.com> Link: https://lore.kernel.org/r/bdbc1d472a8d90487d691e82ab8154a5733e6a0f.1572649242.git.frank@generalsoftwareinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
148 lines
3.5 KiB
C
148 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* File: power.c
|
|
*
|
|
* Purpose: Handles 802.11 power management functions
|
|
*
|
|
* Author: Lyndon Chen
|
|
*
|
|
* Date: July 17, 2002
|
|
*
|
|
* Functions:
|
|
* PSvEnablePowerSaving - Enable Power Saving Mode
|
|
* PSvDiasblePowerSaving - Disable Power Saving Mode
|
|
* PSbConsiderPowerDown - Decide if we can Power Down
|
|
* PSvSendPSPOLL - Send PS-POLL packet
|
|
* PSbSendNullPacket - Send Null packet
|
|
* PSbIsNextTBTTWakeUp - Decide if we need to wake up at next Beacon
|
|
*
|
|
* Revision History:
|
|
*
|
|
*/
|
|
|
|
#include "mac.h"
|
|
#include "device.h"
|
|
#include "power.h"
|
|
#include "card.h"
|
|
|
|
/*--------------------- Static Definitions -------------------------*/
|
|
|
|
/*--------------------- Static Classes ----------------------------*/
|
|
|
|
/*--------------------- Static Functions --------------------------*/
|
|
|
|
/*--------------------- Export Variables --------------------------*/
|
|
|
|
/*--------------------- Export Functions --------------------------*/
|
|
|
|
/*
|
|
*
|
|
* Routine Description:
|
|
* Enable hw power saving functions
|
|
*
|
|
* Return Value:
|
|
* None.
|
|
*
|
|
*/
|
|
|
|
void PSvEnablePowerSaving(struct vnt_private *priv,
|
|
unsigned short wListenInterval)
|
|
{
|
|
u16 wAID = priv->current_aid | BIT(14) | BIT(15);
|
|
|
|
/* set period of power up before TBTT */
|
|
VNSvOutPortW(priv->PortOffset + MAC_REG_PWBT, C_PWBT);
|
|
if (priv->op_mode != NL80211_IFTYPE_ADHOC) {
|
|
/* set AID */
|
|
VNSvOutPortW(priv->PortOffset + MAC_REG_AIDATIM, wAID);
|
|
} else {
|
|
/* set ATIM Window */
|
|
#if 0 /* TODO atim window */
|
|
MACvWriteATIMW(priv->PortOffset, pMgmt->wCurrATIMWindow);
|
|
#endif
|
|
}
|
|
/* Set AutoSleep */
|
|
MACvRegBitsOn(priv->PortOffset, MAC_REG_PSCFG, PSCFG_AUTOSLEEP);
|
|
/* Set HWUTSF */
|
|
MACvRegBitsOn(priv->PortOffset, MAC_REG_TFTCTL, TFTCTL_HWUTSF);
|
|
|
|
if (wListenInterval >= 2) {
|
|
/* clear always listen beacon */
|
|
MACvRegBitsOff(priv->PortOffset, MAC_REG_PSCTL, PSCTL_ALBCN);
|
|
/* first time set listen next beacon */
|
|
MACvRegBitsOn(priv->PortOffset, MAC_REG_PSCTL, PSCTL_LNBCN);
|
|
} else {
|
|
/* always listen beacon */
|
|
MACvRegBitsOn(priv->PortOffset, MAC_REG_PSCTL, PSCTL_ALBCN);
|
|
}
|
|
|
|
/* enable power saving hw function */
|
|
MACvRegBitsOn(priv->PortOffset, MAC_REG_PSCTL, PSCTL_PSEN);
|
|
priv->bEnablePSMode = true;
|
|
|
|
priv->bPWBitOn = true;
|
|
pr_debug("PS:Power Saving Mode Enable...\n");
|
|
}
|
|
|
|
/*
|
|
*
|
|
* Routine Description:
|
|
* Disable hw power saving functions
|
|
*
|
|
* Return Value:
|
|
* None.
|
|
*
|
|
*/
|
|
|
|
void PSvDisablePowerSaving(struct vnt_private *priv)
|
|
{
|
|
/* disable power saving hw function */
|
|
MACbPSWakeup(priv);
|
|
/* clear AutoSleep */
|
|
MACvRegBitsOff(priv->PortOffset, MAC_REG_PSCFG, PSCFG_AUTOSLEEP);
|
|
/* clear HWUTSF */
|
|
MACvRegBitsOff(priv->PortOffset, MAC_REG_TFTCTL, TFTCTL_HWUTSF);
|
|
/* set always listen beacon */
|
|
MACvRegBitsOn(priv->PortOffset, MAC_REG_PSCTL, PSCTL_ALBCN);
|
|
|
|
priv->bEnablePSMode = false;
|
|
|
|
priv->bPWBitOn = false;
|
|
}
|
|
|
|
/*
|
|
*
|
|
* Routine Description:
|
|
* Check if Next TBTT must wake up
|
|
*
|
|
* Return Value:
|
|
* None.
|
|
*
|
|
*/
|
|
|
|
bool PSbIsNextTBTTWakeUp(struct vnt_private *priv)
|
|
{
|
|
struct ieee80211_hw *hw = priv->hw;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
bool wake_up = false;
|
|
|
|
if (conf->listen_interval > 1) {
|
|
if (!priv->wake_up_count)
|
|
priv->wake_up_count = conf->listen_interval;
|
|
|
|
--priv->wake_up_count;
|
|
|
|
if (priv->wake_up_count == 1) {
|
|
/* Turn on wake up to listen next beacon */
|
|
MACvRegBitsOn(priv->PortOffset,
|
|
MAC_REG_PSCTL, PSCTL_LNBCN);
|
|
wake_up = true;
|
|
}
|
|
}
|
|
|
|
return wake_up;
|
|
}
|