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 #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
ar5312SetPowerModeAwake(struct ath_hal * ah,int setChip)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
ar5312SetPowerModeSleep(struct ath_hal * ah,int setChip)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
ar5312SetPowerModeNetworkSleep(struct ath_hal * ah,int setChip)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
ar5312SetPowerMode(struct ath_hal * ah,HAL_POWER_MODE mode,int setChip)72 ar5312SetPowerMode(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 */
109 uint32_t
ar5312GetPowerMode(struct ath_hal * ah)110 ar5312GetPowerMode(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 */
119 HAL_BOOL
ar5312GetPowerStatus(struct ath_hal * ah)120 ar5312GetPowerStatus(struct ath_hal *ah)
121 {
122 return 0; /* Currently, 5312 is never in sleep mode. */
123 }
124 #endif /* AH_SUPPORT_AR5312 */
125