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 * $FreeBSD$ 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 */ 39 static HAL_BOOL 40 ar5312SetPowerModeAwake(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 */ 50 static void 51 ar5312SetPowerModeSleep(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 */ 61 static void 62 ar5312SetPowerModeNetworkSleep(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 */ 71 HAL_BOOL 72 ar5312SetPowerMode(struct ath_hal *ah, HAL_POWER_MODE mode, int setChip) 73 { 74 struct ath_hal_5212 *ahp = AH5212(ah); 75 #ifdef AH_DEBUG 76 static const char* modes[] = { 77 "AWAKE", 78 "FULL-SLEEP", 79 "NETWORK SLEEP", 80 "UNDEFINED" 81 }; 82 #endif 83 int status = AH_TRUE; 84 85 HALDEBUG(ah, HAL_DEBUG_POWER, "%s: %s -> %s (%s)\n", __func__, 86 modes[ahp->ah_powerMode], modes[mode], 87 setChip ? "set chip " : ""); 88 switch (mode) { 89 case HAL_PM_AWAKE: 90 status = ar5312SetPowerModeAwake(ah, setChip); 91 break; 92 case HAL_PM_FULL_SLEEP: 93 ar5312SetPowerModeSleep(ah, setChip); 94 break; 95 case HAL_PM_NETWORK_SLEEP: 96 ar5312SetPowerModeNetworkSleep(ah, setChip); 97 break; 98 default: 99 HALDEBUG(ah, HAL_DEBUG_POWER, "%s: unknown power mode %u\n", 100 __func__, mode); 101 return AH_FALSE; 102 } 103 ahp->ah_powerMode = mode; 104 return status; 105 } 106 107 /* 108 * Return the current sleep mode of the chip 109 */ 110 uint32_t 111 ar5312GetPowerMode(struct ath_hal *ah) 112 { 113 return HAL_PM_AWAKE; 114 } 115 116 /* 117 * Return the current sleep state of the chip 118 * TRUE = sleeping 119 */ 120 HAL_BOOL 121 ar5312GetPowerStatus(struct ath_hal *ah) 122 { 123 return 0; /* Currently, 5312 is never in sleep mode. */ 124 } 125 #endif /* AH_SUPPORT_AR5312 */ 126