383 lines
10 KiB
C
383 lines
10 KiB
C
/*
|
|
* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
*
|
|
* 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 "ttype.h"
|
|
#include "mac.h"
|
|
#include "device.h"
|
|
#include "wmgr.h"
|
|
#include "power.h"
|
|
#include "wcmd.h"
|
|
#include "rxtx.h"
|
|
#include "card.h"
|
|
#include "control.h"
|
|
#include "rndis.h"
|
|
|
|
/*--------------------- Static Definitions -------------------------*/
|
|
|
|
/*--------------------- Static Classes ----------------------------*/
|
|
|
|
/*--------------------- Static Variables --------------------------*/
|
|
static int msglevel =MSG_LEVEL_INFO;
|
|
/*--------------------- Static Functions --------------------------*/
|
|
|
|
/*--------------------- Export Variables --------------------------*/
|
|
|
|
/*--------------------- Export Functions --------------------------*/
|
|
|
|
/*+
|
|
*
|
|
* Routine Description:
|
|
* Enable hw power saving functions
|
|
*
|
|
* Return Value:
|
|
* None.
|
|
*
|
|
-*/
|
|
|
|
void PSvEnablePowerSaving(void *hDeviceContext,
|
|
WORD wListenInterval)
|
|
{
|
|
PSDevice pDevice = (PSDevice)hDeviceContext;
|
|
PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
|
|
WORD wAID = pMgmt->wCurrAID | BIT14 | BIT15;
|
|
|
|
/* set period of power up before TBTT */
|
|
MACvWriteWord(pDevice, MAC_REG_PWBT, C_PWBT);
|
|
|
|
if (pDevice->eOPMode != OP_MODE_ADHOC) {
|
|
/* set AID */
|
|
MACvWriteWord(pDevice, MAC_REG_AIDATIM, wAID);
|
|
} else {
|
|
// set ATIM Window
|
|
//MACvWriteATIMW(pDevice->PortOffset, pMgmt->wCurrATIMWindow);
|
|
}
|
|
|
|
//Warren:06-18-2004,the sequence must follow PSEN->AUTOSLEEP->GO2DOZE
|
|
// enable power saving hw function
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_PSEN);
|
|
// Set AutoSleep
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCFG, PSCFG_AUTOSLEEP);
|
|
|
|
//Warren:MUST turn on this once before turn on AUTOSLEEP ,or the AUTOSLEEP doesn't work
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_GO2DOZE);
|
|
|
|
|
|
if (wListenInterval >= 2) {
|
|
|
|
// clear always listen beacon
|
|
MACvRegBitsOff(pDevice, MAC_REG_PSCTL, PSCTL_ALBCN);
|
|
// first time set listen next beacon
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_LNBCN);
|
|
|
|
pMgmt->wCountToWakeUp = wListenInterval;
|
|
|
|
}
|
|
else {
|
|
|
|
// always listen beacon
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_ALBCN);
|
|
pMgmt->wCountToWakeUp = 0;
|
|
|
|
}
|
|
|
|
pDevice->bEnablePSMode = TRUE;
|
|
|
|
if (pDevice->eOPMode == OP_MODE_ADHOC) {
|
|
/* bMgrPrepareBeaconToSend((void *) pDevice, pMgmt); */
|
|
}
|
|
// We don't send null pkt in ad hoc mode since beacon will handle this.
|
|
else if (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) {
|
|
PSbSendNullPacket(pDevice);
|
|
}
|
|
pDevice->bPWBitOn = TRUE;
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "PS:Power Saving Mode Enable... \n");
|
|
return;
|
|
}
|
|
|
|
/*+
|
|
*
|
|
* Routine Description:
|
|
* Disable hw power saving functions
|
|
*
|
|
* Return Value:
|
|
* None.
|
|
*
|
|
-*/
|
|
|
|
void PSvDisablePowerSaving(void *hDeviceContext)
|
|
{
|
|
PSDevice pDevice = (PSDevice)hDeviceContext;
|
|
// PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
|
|
|
|
|
|
// disable power saving hw function
|
|
CONTROLnsRequestOut(pDevice,
|
|
MESSAGE_TYPE_DISABLE_PS,
|
|
0,
|
|
0,
|
|
0,
|
|
NULL
|
|
);
|
|
|
|
//clear AutoSleep
|
|
MACvRegBitsOff(pDevice, MAC_REG_PSCFG, PSCFG_AUTOSLEEP);
|
|
|
|
// set always listen beacon
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_ALBCN);
|
|
|
|
pDevice->bEnablePSMode = FALSE;
|
|
|
|
if (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) {
|
|
PSbSendNullPacket(pDevice);
|
|
}
|
|
pDevice->bPWBitOn = FALSE;
|
|
return;
|
|
}
|
|
|
|
/*+
|
|
*
|
|
* Routine Description:
|
|
* Consider to power down when no more packets to tx or rx.
|
|
*
|
|
* Return Value:
|
|
* TRUE, if power down success
|
|
* FALSE, if fail
|
|
-*/
|
|
|
|
BOOL PSbConsiderPowerDown(void *hDeviceContext,
|
|
BOOL bCheckRxDMA,
|
|
BOOL bCheckCountToWakeUp)
|
|
{
|
|
PSDevice pDevice = (PSDevice)hDeviceContext;
|
|
PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
|
|
BYTE byData;
|
|
|
|
|
|
// check if already in Doze mode
|
|
ControlvReadByte(pDevice, MESSAGE_REQUEST_MACREG, MAC_REG_PSCTL, &byData);
|
|
if ( (byData & PSCTL_PS) != 0 )
|
|
return TRUE;
|
|
|
|
if (pMgmt->eCurrMode != WMAC_MODE_IBSS_STA) {
|
|
// check if in TIM wake period
|
|
if (pMgmt->bInTIMWake)
|
|
return FALSE;
|
|
}
|
|
|
|
// check scan state
|
|
if (pDevice->bCmdRunning)
|
|
return FALSE;
|
|
|
|
//Tx Burst
|
|
if ( pDevice->bPSModeTxBurst )
|
|
return FALSE;
|
|
|
|
// Froce PSEN on
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_PSEN);
|
|
|
|
if (pMgmt->eCurrMode != WMAC_MODE_IBSS_STA) {
|
|
if (bCheckCountToWakeUp &&
|
|
(pMgmt->wCountToWakeUp == 0 || pMgmt->wCountToWakeUp == 1)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
pDevice->bPSRxBeacon = TRUE;
|
|
// no Tx, no Rx isr, now go to Doze
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_GO2DOZE);
|
|
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Go to Doze ZZZZZZZZZZZZZZZ\n");
|
|
return TRUE;
|
|
}
|
|
|
|
/*+
|
|
*
|
|
* Routine Description:
|
|
* Send PS-POLL packet
|
|
*
|
|
* Return Value:
|
|
* None.
|
|
*
|
|
-*/
|
|
|
|
void PSvSendPSPOLL(void *hDeviceContext)
|
|
{
|
|
PSDevice pDevice = (PSDevice)hDeviceContext;
|
|
PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
|
|
PSTxMgmtPacket pTxPacket = NULL;
|
|
|
|
|
|
memset(pMgmt->pbyPSPacketPool, 0, sizeof(STxMgmtPacket) + WLAN_HDR_ADDR2_LEN);
|
|
pTxPacket = (PSTxMgmtPacket)pMgmt->pbyPSPacketPool;
|
|
pTxPacket->p80211Header = (PUWLAN_80211HDR)((PBYTE)pTxPacket + sizeof(STxMgmtPacket));
|
|
pTxPacket->p80211Header->sA2.wFrameCtl = cpu_to_le16(
|
|
(
|
|
WLAN_SET_FC_FTYPE(WLAN_TYPE_CTL) |
|
|
WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_PSPOLL) |
|
|
WLAN_SET_FC_PWRMGT(0)
|
|
));
|
|
pTxPacket->p80211Header->sA2.wDurationID = pMgmt->wCurrAID | BIT14 | BIT15;
|
|
memcpy(pTxPacket->p80211Header->sA2.abyAddr1, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN);
|
|
memcpy(pTxPacket->p80211Header->sA2.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN);
|
|
pTxPacket->cbMPDULen = WLAN_HDR_ADDR2_LEN;
|
|
pTxPacket->cbPayloadLen = 0;
|
|
// send the frame
|
|
if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING) {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Send PS-Poll packet failed..\n");
|
|
}
|
|
else {
|
|
// DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Send PS-Poll packet success..\n");
|
|
};
|
|
|
|
return;
|
|
}
|
|
|
|
/*+
|
|
*
|
|
* Routine Description:
|
|
* Send NULL packet to AP for notification power state of STA
|
|
*
|
|
* Return Value:
|
|
* None.
|
|
*
|
|
-*/
|
|
|
|
BOOL PSbSendNullPacket(void *hDeviceContext)
|
|
{
|
|
PSDevice pDevice = (PSDevice)hDeviceContext;
|
|
PSTxMgmtPacket pTxPacket = NULL;
|
|
PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
|
|
|
|
|
|
|
|
if (pDevice->bLinkPass == FALSE) {
|
|
return FALSE;
|
|
}
|
|
|
|
if ((pDevice->bEnablePSMode == FALSE) &&
|
|
(pDevice->fTxDataInSleep == FALSE)){
|
|
return FALSE;
|
|
}
|
|
|
|
memset(pMgmt->pbyPSPacketPool, 0, sizeof(STxMgmtPacket) + WLAN_NULLDATA_FR_MAXLEN);
|
|
pTxPacket = (PSTxMgmtPacket)pMgmt->pbyPSPacketPool;
|
|
pTxPacket->p80211Header = (PUWLAN_80211HDR)((PBYTE)pTxPacket + sizeof(STxMgmtPacket));
|
|
|
|
if (pDevice->bEnablePSMode) {
|
|
|
|
pTxPacket->p80211Header->sA3.wFrameCtl = cpu_to_le16(
|
|
(
|
|
WLAN_SET_FC_FTYPE(WLAN_TYPE_DATA) |
|
|
WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_NULL) |
|
|
WLAN_SET_FC_PWRMGT(1)
|
|
));
|
|
}
|
|
else {
|
|
pTxPacket->p80211Header->sA3.wFrameCtl = cpu_to_le16(
|
|
(
|
|
WLAN_SET_FC_FTYPE(WLAN_TYPE_DATA) |
|
|
WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_NULL) |
|
|
WLAN_SET_FC_PWRMGT(0)
|
|
));
|
|
}
|
|
|
|
if(pMgmt->eCurrMode != WMAC_MODE_IBSS_STA) {
|
|
pTxPacket->p80211Header->sA3.wFrameCtl |= cpu_to_le16((WORD)WLAN_SET_FC_TODS(1));
|
|
}
|
|
|
|
memcpy(pTxPacket->p80211Header->sA3.abyAddr1, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN);
|
|
memcpy(pTxPacket->p80211Header->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN);
|
|
memcpy(pTxPacket->p80211Header->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN);
|
|
pTxPacket->cbMPDULen = WLAN_HDR_ADDR3_LEN;
|
|
pTxPacket->cbPayloadLen = 0;
|
|
// send the frame
|
|
if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING) {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Send Null Packet failed !\n");
|
|
return FALSE;
|
|
}
|
|
else {
|
|
// DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Send Null Packet success....\n");
|
|
}
|
|
|
|
|
|
return TRUE ;
|
|
}
|
|
|
|
/*+
|
|
*
|
|
* Routine Description:
|
|
* Check if Next TBTT must wake up
|
|
*
|
|
* Return Value:
|
|
* None.
|
|
*
|
|
-*/
|
|
|
|
BOOL PSbIsNextTBTTWakeUp(void *hDeviceContext)
|
|
{
|
|
|
|
PSDevice pDevice = (PSDevice)hDeviceContext;
|
|
PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
|
|
BOOL bWakeUp = FALSE;
|
|
|
|
if (pMgmt->wListenInterval >= 2) {
|
|
if (pMgmt->wCountToWakeUp == 0) {
|
|
pMgmt->wCountToWakeUp = pMgmt->wListenInterval;
|
|
}
|
|
|
|
pMgmt->wCountToWakeUp --;
|
|
|
|
if (pMgmt->wCountToWakeUp == 1) {
|
|
|
|
// Turn on wake up to listen next beacon
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_LNBCN);
|
|
pDevice->bPSRxBeacon = FALSE;
|
|
bWakeUp = TRUE;
|
|
|
|
} else if ( !pDevice->bPSRxBeacon ) {
|
|
//Listen until RxBeacon
|
|
MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_LNBCN);
|
|
}
|
|
|
|
}
|
|
|
|
return bWakeUp;
|
|
}
|
|
|