| Vishal Bhoj | 82c8071 | 2015-12-15 21:13:33 +0530 | [diff] [blame] | 1 | /**************************************************************************;
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| 2 | ;* *;
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| 3 | ;* *;
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| 4 | ;* Intel Corporation - ACPI Reference Code for the Baytrail *;
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| 5 | ;* Family of Customer Reference Boards. *;
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| 6 | ;* *;
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| 7 | ;* *;
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| 8 | ;* Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved *;
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| 9 | ;
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| 10 | ; This program and the accompanying materials are licensed and made available under
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| 11 | ; the terms and conditions of the BSD License that accompanies this distribution.
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| 12 | ; The full text of the license may be found at
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| 13 | ; http://opensource.org/licenses/bsd-license.php.
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| 14 | ;
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| 15 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 16 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 17 | ;
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| 18 | ;* *;
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| 19 | ;* *;
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| 20 | ;**************************************************************************/
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| 21 |
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| 22 |
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| 23 | // THERMAL.ASL represents a Thermal Zone to be used for testing on the
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| 24 | // Customer Reference Boards.
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| 25 |
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| 26 | External(\_SB.DPTF.CTOK, MethodObj)
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| 27 |
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| 28 | Scope(\_TZ)
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| 29 | {
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| 30 |
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| 31 | // Thermal Zone 1 = DTS Thermal Zone.
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| 32 |
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| 33 | ThermalZone(TZ01)
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| 34 | {
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| 35 | // Return the temperature at which the OS must perform a Critcal
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| 36 | // Shutdown.
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| 37 |
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| 38 | Method(_CRT,0,Serialized)
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| 39 | {
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| 40 | Return(Add(2732,Multiply(CRTT,10)))
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| 41 | }
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| 42 |
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| 43 | // Notifies ASL Code the current cooling mode.
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| 44 | // 0 - Active cooling
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| 45 | // 1 - Passive cooling
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| 46 |
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| 47 | Method(_SCP,1,Serialized)
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| 48 | {
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| 49 | Store(Arg0,CTYP)
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| 50 | }
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| 51 |
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| 52 | // _TMP (Temperature)
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| 53 | //
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| 54 | // Return the highest of the CPU temperatures to the OS.
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| 55 | //
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| 56 | // Arguments: (0)
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| 57 | // None
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| 58 | // Return Value:
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| 59 | // An Integer containing the current temperature of the thermal zone (in tenths of degrees Kelvin)
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| 60 | //
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| 61 | Method(_TMP,0,Serialized)
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| 62 | {
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| 63 | If(DTSE)
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| 64 | {
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| 65 | If(LGreater(DTS2, DTS1))
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| 66 | {
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| 67 | Store(DTS2,Local0)
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| 68 | } else
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| 69 | {
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| 70 | Store(DTS1,Local0)
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| 71 | }
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| 72 | Return(Add(2732,Multiply(Local0,10)))
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| 73 | //
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| 74 | // Else return a static value if both EC and DTS are unavailable.
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| 75 | //
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| 76 | } Else
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| 77 | {
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| 78 | Return(3000) // (3000-2732)/10 = 26.8 degree C
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| 79 | }
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| 80 | }
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| 81 |
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| 82 | // Return the Processor(s) used for Passive Cooling.
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| 83 |
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| 84 | Method(_PSL,0,Serialized)
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| 85 | {
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| 86 | If(LEqual(MPEN, 4))
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| 87 | {
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| 88 | // CMP - Throttling controls all four logical CPUs.
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| 89 | Return(Package() {\_PR.CPU0,\_PR.CPU1,\_PR.CPU2,\_PR.CPU3})
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| 90 | }
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| 91 |
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| 92 | If(MPEN)
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| 93 | {
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| 94 | // CMP - Throttling controls both CPUs.
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| 95 |
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| 96 | Return(Package() {\_PR.CPU0,\_PR.CPU1})
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| 97 | }
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| 98 |
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| 99 | Return(Package() {\_PR.CPU0})
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| 100 | }
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| 101 |
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| 102 | // Returns the temperature at which the OS initiates CPU throttling.
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| 103 |
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| 104 | Method(_PSV,0,Serialized)
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| 105 | {
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| 106 | Return(Add(2732,Multiply(PSVT,10)))
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| 107 | }
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| 108 |
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| 109 | // Returns TC1 value used in the passive cooling formula.
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| 110 |
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| 111 | Method(_TC1,0,Serialized)
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| 112 | {
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| 113 | Return(TC1V)
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| 114 | }
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| 115 |
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| 116 | // Returns TC2 value used in the passive cooling formula.
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| 117 |
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| 118 | Method(_TC2,0,Serialized)
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| 119 | {
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| 120 | Return(TC2V)
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| 121 | }
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| 122 |
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| 123 | // Returns the sampling period used in the passive cooling formula.
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| 124 |
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| 125 | Method(_TSP,0,Serialized)
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| 126 | {
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| 127 | Return(TSPV)
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| 128 | }
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| 129 |
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| 130 | // Returns Hot Temperature
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| 131 |
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| 132 | Method(_HOT,0,Serialized)
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| 133 | {
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| 134 | Subtract(CRTT, 5, Local0)
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| 135 | Return(Add(2732,Multiply(Local0,10)))
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| 136 | }
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| 137 | }
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| 138 | }
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