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/*
* Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
* Copyright (c) 2002-2008 Atheros Communications, Inc.
*
* 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.
*
* $FreeBSD$
*/
#include "opt_ah.h"
#ifdef AH_SUPPORT_AR5312
#include "ah.h"
#include "ah_internal.h"
#include "ar5312/ar5312.h"
#include "ar5312/ar5312reg.h"
#include "ar5212/ar5212desc.h"
/*
* Notify Power Mgt is enabled in self-generated frames.
* If requested, force chip awake.
*
* Returns A_OK if chip is awake or successfully forced awake.
*
* WARNING WARNING WARNING
* There is a problem with the chip where sometimes it will not wake up.
*/
static HAL_BOOL
ar5312SetPowerModeAwake(struct ath_hal *ah, int setChip)
{
/* No need for this at the moment for APs */
return AH_TRUE;
}
/*
* Notify Power Mgt is disabled in self-generated frames.
* If requested, force chip to sleep.
*/
static void
ar5312SetPowerModeSleep(struct ath_hal *ah, int setChip)
{
/* No need for this at the moment for APs */
}
/*
* Notify Power Management is enabled in self-generating
* fames. If request, set power mode of chip to
* auto/normal. Duration in units of 128us (1/8 TU).
*/
static void
ar5312SetPowerModeNetworkSleep(struct ath_hal *ah, int setChip)
{
/* No need for this at the moment for APs */
}
/*
* Set power mgt to the requested mode, and conditionally set
* the chip as well
*/
HAL_BOOL
ar5312SetPowerMode(struct ath_hal *ah, HAL_POWER_MODE mode, int setChip)
{
struct ath_hal_5212 *ahp = AH5212(ah);
#ifdef AH_DEBUG
static const char* modes[] = {
"AWAKE",
"FULL-SLEEP",
"NETWORK SLEEP",
"UNDEFINED"
};
#endif
int status = AH_TRUE;
HALDEBUG(ah, HAL_DEBUG_POWER, "%s: %s -> %s (%s)\n", __func__,
modes[ahp->ah_powerMode], modes[mode],
setChip ? "set chip " : "");
switch (mode) {
case HAL_PM_AWAKE:
status = ar5312SetPowerModeAwake(ah, setChip);
break;
case HAL_PM_FULL_SLEEP:
ar5312SetPowerModeSleep(ah, setChip);
break;
case HAL_PM_NETWORK_SLEEP:
ar5312SetPowerModeNetworkSleep(ah, setChip);
break;
default:
HALDEBUG(ah, HAL_DEBUG_POWER, "%s: unknown power mode %u\n",
__func__, mode);
return AH_FALSE;
}
ahp->ah_powerMode = mode;
return status;
}
/*
* Return the current sleep mode of the chip
*/
uint32_t
ar5312GetPowerMode(struct ath_hal *ah)
{
return HAL_PM_AWAKE;
}
/*
* Return the current sleep state of the chip
* TRUE = sleeping
*/
HAL_BOOL
ar5312GetPowerStatus(struct ath_hal *ah)
{
return 0; /* Currently, 5312 is never in sleep mode. */
}
#endif /* AH_SUPPORT_AR5312 */
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