ar5312_power.c revision 262969
1/* 2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 3 * Copyright (c) 2002-2008 Atheros Communications, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 * 17 * $FreeBSD: head/sys/dev/ath/ath_hal/ar5312/ar5312_power.c 262969 2014-03-10 06:03:35Z adrian $ 18 */ 19#include "opt_ah.h" 20 21#ifdef AH_SUPPORT_AR5312 22 23#include "ah.h" 24#include "ah_internal.h" 25 26#include "ar5312/ar5312.h" 27#include "ar5312/ar5312reg.h" 28#include "ar5212/ar5212desc.h" 29 30/* 31 * Notify Power Mgt is enabled in self-generated frames. 32 * If requested, force chip awake. 33 * 34 * Returns A_OK if chip is awake or successfully forced awake. 35 * 36 * WARNING WARNING WARNING 37 * There is a problem with the chip where sometimes it will not wake up. 38 */ 39static HAL_BOOL 40ar5312SetPowerModeAwake(struct ath_hal *ah, int setChip) 41{ 42 /* No need for this at the moment for APs */ 43 return AH_TRUE; 44} 45 46/* 47 * Notify Power Mgt is disabled in self-generated frames. 48 * If requested, force chip to sleep. 49 */ 50static void 51ar5312SetPowerModeSleep(struct ath_hal *ah, int setChip) 52{ 53 /* No need for this at the moment for APs */ 54} 55 56/* 57 * Notify Power Management is enabled in self-generating 58 * fames. If request, set power mode of chip to 59 * auto/normal. Duration in units of 128us (1/8 TU). 60 */ 61static void 62ar5312SetPowerModeNetworkSleep(struct ath_hal *ah, int setChip) 63{ 64 /* No need for this at the moment for APs */ 65} 66 67/* 68 * Set power mgt to the requested mode, and conditionally set 69 * the chip as well 70 */ 71HAL_BOOL 72ar5312SetPowerMode(struct ath_hal *ah, HAL_POWER_MODE mode, int setChip) 73{ 74#ifdef AH_DEBUG 75 static const char* modes[] = { 76 "AWAKE", 77 "FULL-SLEEP", 78 "NETWORK SLEEP", 79 "UNDEFINED" 80 }; 81#endif 82 int status = AH_TRUE; 83 84 HALDEBUG(ah, HAL_DEBUG_POWER, "%s: %s -> %s (%s)\n", __func__, 85 modes[ah->ah_powerMode], modes[mode], 86 setChip ? "set chip " : ""); 87 switch (mode) { 88 case HAL_PM_AWAKE: 89 status = ar5312SetPowerModeAwake(ah, setChip); 90 break; 91 case HAL_PM_FULL_SLEEP: 92 ar5312SetPowerModeSleep(ah, setChip); 93 break; 94 case HAL_PM_NETWORK_SLEEP: 95 ar5312SetPowerModeNetworkSleep(ah, setChip); 96 break; 97 default: 98 HALDEBUG(ah, HAL_DEBUG_POWER, "%s: unknown power mode %u\n", 99 __func__, mode); 100 return AH_FALSE; 101 } 102 ah->ah_powerMode = mode; 103 return status; 104} 105 106/* 107 * Return the current sleep mode of the chip 108 */ 109uint32_t 110ar5312GetPowerMode(struct ath_hal *ah) 111{ 112 return HAL_PM_AWAKE; 113} 114 115/* 116 * Return the current sleep state of the chip 117 * TRUE = sleeping 118 */ 119HAL_BOOL 120ar5312GetPowerStatus(struct ath_hal *ah) 121{ 122 return 0; /* Currently, 5312 is never in sleep mode. */ 123} 124#endif /* AH_SUPPORT_AR5312 */ 125