From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/staging/vt6655/power.c | 167 ++++++++++++++++++++++++++++++++++ 1 file changed, 167 insertions(+) create mode 100644 kernel/drivers/staging/vt6655/power.c (limited to 'kernel/drivers/staging/vt6655/power.c') diff --git a/kernel/drivers/staging/vt6655/power.c b/kernel/drivers/staging/vt6655/power.c new file mode 100644 index 000000000..be3c4e949 --- /dev/null +++ b/kernel/drivers/staging/vt6655/power.c @@ -0,0 +1,167 @@ +/* + * 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 "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( + void *hDeviceContext, + unsigned short wListenInterval +) +{ + struct vnt_private *pDevice = hDeviceContext; + u16 wAID = pDevice->current_aid | BIT(14) | BIT(15); + + /* set period of power up before TBTT */ + VNSvOutPortW(pDevice->PortOffset + MAC_REG_PWBT, C_PWBT); + if (pDevice->op_mode != NL80211_IFTYPE_ADHOC) { + /* set AID */ + VNSvOutPortW(pDevice->PortOffset + MAC_REG_AIDATIM, wAID); + } else { + /* set ATIM Window */ +#if 0 /* TODO atim window */ + MACvWriteATIMW(pDevice->PortOffset, pMgmt->wCurrATIMWindow); +#endif + } + /* Set AutoSleep */ + MACvRegBitsOn(pDevice->PortOffset, MAC_REG_PSCFG, PSCFG_AUTOSLEEP); + /* Set HWUTSF */ + MACvRegBitsOn(pDevice->PortOffset, MAC_REG_TFTCTL, TFTCTL_HWUTSF); + + if (wListenInterval >= 2) { + /* clear always listen beacon */ + MACvRegBitsOff(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_ALBCN); + /* first time set listen next beacon */ + MACvRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_LNBCN); + } else { + /* always listen beacon */ + MACvRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_ALBCN); + } + + /* enable power saving hw function */ + MACvRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_PSEN); + pDevice->bEnablePSMode = true; + + pDevice->bPWBitOn = true; + pr_debug("PS:Power Saving Mode Enable...\n"); +} + +/*+ + * + * Routine Description: + * Disable hw power saving functions + * + * Return Value: + * None. + * + -*/ + +void +PSvDisablePowerSaving( + void *hDeviceContext +) +{ + struct vnt_private *pDevice = hDeviceContext; + + /* disable power saving hw function */ + MACbPSWakeup(pDevice->PortOffset); + /* clear AutoSleep */ + MACvRegBitsOff(pDevice->PortOffset, MAC_REG_PSCFG, PSCFG_AUTOSLEEP); + /* clear HWUTSF */ + MACvRegBitsOff(pDevice->PortOffset, MAC_REG_TFTCTL, TFTCTL_HWUTSF); + /* set always listen beacon */ + MACvRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_ALBCN); + + pDevice->bEnablePSMode = false; + + pDevice->bPWBitOn = false; +} + + +/*+ + * + * Routine Description: + * Check if Next TBTT must wake up + * + * Return Value: + * None. + * + -*/ + +bool +PSbIsNextTBTTWakeUp( + void *hDeviceContext +) +{ + struct vnt_private *pDevice = hDeviceContext; + struct ieee80211_hw *hw = pDevice->hw; + struct ieee80211_conf *conf = &hw->conf; + bool bWakeUp = false; + + if (conf->listen_interval == 1) { + /* Turn on wake up to listen next beacon */ + MACvRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_LNBCN); + bWakeUp = true; + } + + return bWakeUp; +} -- cgit 1.2.3-korg