cregit-Linux how code gets into the kernel

Release 4.11 drivers/staging/vt6656/power.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.
 *
 *
 * File: power.c
 *
 * Purpose: Handles 802.11 power management functions
 *
 * Author: Lyndon Chen
 *
 * Date: July 17, 2002
 *
 * Functions:
 *      vnt_enable_power_saving - Enable Power Saving Mode
 *      PSvDiasblePowerSaving - Disable Power Saving Mode
 *      vnt_next_tbtt_wakeup - Decide if we need to wake up at next Beacon
 *
 * Revision History:
 *
 */

#include "mac.h"
#include "device.h"
#include "power.h"
#include "wcmd.h"
#include "rxtx.h"
#include "card.h"
#include "usbpipe.h"

/*
 *
 * Routine Description:
 * Enable hw power saving functions
 *
 * Return Value:
 *    None.
 *
 */


void vnt_enable_power_saving(struct vnt_private *priv, u16 listen_interval) { u16 aid = priv->current_aid | BIT(14) | BIT(15); /* set period of power up before TBTT */ vnt_mac_write_word(priv, MAC_REG_PWBT, C_PWBT); if (priv->op_mode != NL80211_IFTYPE_ADHOC) /* set AID */ vnt_mac_write_word(priv, MAC_REG_AIDATIM, aid); /* Warren:06-18-2004,the sequence must follow * PSEN->AUTOSLEEP->GO2DOZE */ /* enable power saving hw function */ vnt_mac_reg_bits_on(priv, MAC_REG_PSCTL, PSCTL_PSEN); /* Set AutoSleep */ vnt_mac_reg_bits_on(priv, MAC_REG_PSCFG, PSCFG_AUTOSLEEP); /* Warren:MUST turn on this once before turn on AUTOSLEEP ,or the * AUTOSLEEP doesn't work */ vnt_mac_reg_bits_on(priv, MAC_REG_PSCTL, PSCTL_GO2DOZE); if (listen_interval >= 2) { /* clear always listen beacon */ vnt_mac_reg_bits_off(priv, MAC_REG_PSCTL, PSCTL_ALBCN); /* first time set listen next beacon */ vnt_mac_reg_bits_on(priv, MAC_REG_PSCTL, PSCTL_LNBCN); } else /* always listen beacon */ vnt_mac_reg_bits_on(priv, MAC_REG_PSCTL, PSCTL_ALBCN); dev_dbg(&priv->usb->dev, "PS:Power Saving Mode Enable...\n"); }

Contributors

PersonTokensPropCommitsCommitProp
Forest Bond8258.57%16.67%
Malcolm Priestley4632.86%960.00%
Philip Worrall64.29%213.33%
Aybuke Ozdemir21.43%16.67%
Alejandro Emanuel Paredes21.43%16.67%
Andres More21.43%16.67%
Total140100.00%15100.00%

/* * * Routine Description: * Disable hw power saving functions * * Return Value: * None. * */
void vnt_disable_power_saving(struct vnt_private *priv) { /* disable power saving hw function */ vnt_control_out(priv, MESSAGE_TYPE_DISABLE_PS, 0, 0, 0, NULL); /* clear AutoSleep */ vnt_mac_reg_bits_off(priv, MAC_REG_PSCFG, PSCFG_AUTOSLEEP); /* set always listen beacon */ vnt_mac_reg_bits_on(priv, MAC_REG_PSCTL, PSCTL_ALBCN); }

Contributors

PersonTokensPropCommitsCommitProp
Forest Bond3167.39%111.11%
Malcolm Priestley1021.74%666.67%
Philip Worrall36.52%111.11%
Andres More24.35%111.11%
Total46100.00%9100.00%

/* * * Routine Description: * Check if Next TBTT must wake up * * Return Value: * None. * */
int vnt_next_tbtt_wakeup(struct vnt_private *priv) { struct ieee80211_hw *hw = priv->hw; struct ieee80211_conf *conf = &hw->conf; int wake_up = false; if (conf->listen_interval > 1) { /* Turn on wake up to listen next beacon */ vnt_mac_reg_bits_on(priv, MAC_REG_PSCTL, PSCTL_LNBCN); wake_up = true; } return wake_up; }

Contributors

PersonTokensPropCommitsCommitProp
Malcolm Priestley3049.18%654.55%
Forest Bond2744.26%19.09%
Andres More34.92%327.27%
Philip Worrall11.64%19.09%
Total61100.00%11100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Forest Bond16058.82%13.85%
Malcolm Priestley8731.99%1765.38%
Philip Worrall134.78%27.69%
Andres More72.57%311.54%
Alejandro Emanuel Paredes20.74%13.85%
Aybuke Ozdemir20.74%13.85%
Othmar Pasteka10.37%13.85%
Total272100.00%26100.00%
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