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Diffstat (limited to 'ar5312/ar5312_power.c')
| -rw-r--r-- | ar5312/ar5312_power.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/ar5312/ar5312_power.c b/ar5312/ar5312_power.c new file mode 100644 index 0000000..1cc4ed6 --- /dev/null +++ b/ar5312/ar5312_power.c @@ -0,0 +1,125 @@ +/* + * 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. + * + * $Id: ar5312_power.c,v 1.4 2008/11/10 04:08:04 sam Exp $ + */ +#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 */ |
