1 /*- 2 * SPDX-License-Identifier: ISC 3 * 4 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 5 * Copyright (c) 2002-2008 Atheros Communications, Inc. 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 * 19 * $FreeBSD$ 20 */ 21 #include "opt_ah.h" 22 23 #ifdef AH_SUPPORT_AR5312 24 25 #include "ah.h" 26 #include "ah_internal.h" 27 28 #include "ar5312/ar5312.h" 29 #include "ar5312/ar5312reg.h" 30 #include "ar5212/ar5212desc.h" 31 32 /* 33 * Notify Power Mgt is enabled in self-generated frames. 34 * If requested, force chip awake. 35 * 36 * Returns A_OK if chip is awake or successfully forced awake. 37 * 38 * WARNING WARNING WARNING 39 * There is a problem with the chip where sometimes it will not wake up. 40 */ 41 static HAL_BOOL 42 ar5312SetPowerModeAwake(struct ath_hal *ah, int setChip) 43 { 44 /* No need for this at the moment for APs */ 45 return AH_TRUE; 46 } 47 48 /* 49 * Notify Power Mgt is disabled in self-generated frames. 50 * If requested, force chip to sleep. 51 */ 52 static void 53 ar5312SetPowerModeSleep(struct ath_hal *ah, int setChip) 54 { 55 /* No need for this at the moment for APs */ 56 } 57 58 /* 59 * Notify Power Management is enabled in self-generating 60 * fames. If request, set power mode of chip to 61 * auto/normal. Duration in units of 128us (1/8 TU). 62 */ 63 static void 64 ar5312SetPowerModeNetworkSleep(struct ath_hal *ah, int setChip) 65 { 66 /* No need for this at the moment for APs */ 67 } 68 69 /* 70 * Set power mgt to the requested mode, and conditionally set 71 * the chip as well 72 */ 73 HAL_BOOL 74 ar5312SetPowerMode(struct ath_hal *ah, HAL_POWER_MODE mode, int setChip) 75 { 76 #ifdef AH_DEBUG 77 static const char* modes[] = { 78 "AWAKE", 79 "FULL-SLEEP", 80 "NETWORK SLEEP", 81 "UNDEFINED" 82 }; 83 #endif 84 int status = AH_TRUE; 85 86 HALDEBUG(ah, HAL_DEBUG_POWER, "%s: %s -> %s (%s)\n", __func__, 87 modes[ah->ah_powerMode], modes[mode], 88 setChip ? "set chip " : ""); 89 switch (mode) { 90 case HAL_PM_AWAKE: 91 status = ar5312SetPowerModeAwake(ah, setChip); 92 break; 93 case HAL_PM_FULL_SLEEP: 94 ar5312SetPowerModeSleep(ah, setChip); 95 break; 96 case HAL_PM_NETWORK_SLEEP: 97 ar5312SetPowerModeNetworkSleep(ah, setChip); 98 break; 99 default: 100 HALDEBUG(ah, HAL_DEBUG_POWER, "%s: unknown power mode %u\n", 101 __func__, mode); 102 return AH_FALSE; 103 } 104 ah->ah_powerMode = mode; 105 return status; 106 } 107 108 /* 109 * Return the current sleep mode of the chip 110 */ 111 uint32_t 112 ar5312GetPowerMode(struct ath_hal *ah) 113 { 114 return HAL_PM_AWAKE; 115 } 116 117 /* 118 * Return the current sleep state of the chip 119 * TRUE = sleeping 120 */ 121 HAL_BOOL 122 ar5312GetPowerStatus(struct ath_hal *ah) 123 { 124 return 0; /* Currently, 5312 is never in sleep mode. */ 125 } 126 #endif /* AH_SUPPORT_AR5312 */ 127