src/ec/lenovo/h8/acpi/thermal.asl

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <arch/x86/acpi/statdef.asl>
   4
   5 Scope(\_TZ)
   6 {
   7 #if defined(EC_LENOVO_H8_ME_WORKAROUND)
   8         Name (MEB1, 0)
   9         Name (MEB2, 0)
  10 #endif
  11
  12         Method(C2K, 1, NotSerialized)
  13         {
  14                 Local0 = Arg0 * 10
  15                 Local0 += 2732
  16                 if (Local0 <= 2732) {
  17                         Return (3000)
  18                 }
  19
  20                 if (Local0 > 4012) {
  21                         Return (3000)
  22                 }
  23                 Return (Local0)
  24         }
  25
  26         ThermalZone(THM0)
  27         {
  28                 /* Thermal zone polling frequency: 10 seconds */
  29                 Name (_TZP, 100)
  30
  31                 /* Thermal sampling period for passive cooling: 10 seconds */
  32                 Name (_TSP, 100)
  33
  34                 /* Coefficients for passive cooling */
  35                 Name (_TC1, 0x02)
  36                 Name (_TC2, 0x05)
  37
  38 /* Generated by acpigen */
  39 External (\PPKG, MethodObj)
  40
  41                 /* Processors used for passive cooling */
  42                 Method (_PSL, 0, Serialized)
  43                 {
  44                         Return (\PPKG ())
  45                 }
  46
  47                 /* Get critical temperature in degree celsius */
  48                 Method (GCRT, 0, NotSerialized) {
  49                         Local0 = \TCRT
  50                         if (Local0 > 0) {
  51                                 Return (Local0)
  52                         }
  53                         Return (127)
  54                 }
  55
  56                 /* Get passive temperature in degree celsius */
  57                 Method (GPSV, 0, NotSerialized) {
  58                         Local0 = \TPSV
  59                         if (Local0 > 0) {
  60                                 Return (Local0)
  61                         }
  62                         Return (95)
  63                 }
  64
  65                 Method (_CRT, 0, NotSerialized) {
  66                         Return (C2K (GCRT ()))
  67                 }
  68
  69                 Method (_PSV, 0, NotSerialized) {
  70                         Return (C2K (GPSV ()))
  71                 }
  72
  73                 Method(_TMP) {
  74 #if defined(EC_LENOVO_H8_ME_WORKAROUND)
  75                         /* Avoid tripping alarm if ME isn't booted at all yet */
  76                         If (!MEB1 && \_SB.PCI0.LPCB.EC.TMP0 == 128) {
  77                                 Return (C2K(40))
  78                         }
  79                         MEB1 = 1
  80 #endif
  81                         Return (C2K(\_SB.PCI0.LPCB.EC.TMP0))
  82                 }
  83
  84                 Method (_AC0) {
  85                         Local0 = GPSV ()
  86
  87                         /* Active fan 10 degree below passive threshold */
  88                         Local0 -= 10
  89
  90                         If (\FLVL) {
  91                                 /* Turn of 5 degree below trip point */
  92                                 Local0 -= 5
  93                         }
  94
  95                         Return (C2K (Local0))
  96                 }
  97
  98                 Name (_AL0, Package () { FAN })
  99
 100                 PowerResource (FPwR, 0, 0)
 101                 {
 102                         /*
 103                          * WINDOWS BUG: Don't read from EmbeddedControl
 104                          * in PowerResources. Use system-memory instead!
 105                          */
 106                         Method (_STA) {
 107                                 Return (\FLVL)
 108                         }
 109
 110                         /*
 111                          * WINDOWS BUG: Don't write to FIELD elements located
 112                          * in another ACPI scope. Call a method that does it!
 113                          */
 114                         Method (_ON) {
 115                                 \_SB.PCI0.LPCB.EC.FANE(1)
 116                                 \FLVL = 1
 117                                 Notify (\_TZ.THM0, NOTIFY_TZ_TRIPPTCHG)
 118                         }
 119
 120                         Method (_OFF) {
 121                                 \_SB.PCI0.LPCB.EC.FANE(0)
 122                                 \FLVL = 0
 123                                 Notify (\_TZ.THM0, NOTIFY_TZ_TRIPPTCHG)
 124                         }
 125                 }
 126
 127                 Device (FAN)
 128                 {
 129                         Name (_HID, EISAID ("PNP0C0B"))
 130                         Name (_PR0, Package () { FPwR })
 131                 }
 132         }
 133
 134         ThermalZone(THM1)
 135         {
 136                 /* Thermal zone polling frequency: 10 seconds */
 137                 Name (_TZP, 100)
 138
 139                 /* Thermal sampling period for passive cooling: 10 seconds */
 140                 Name (_TSP, 100)
 141
 142                 /* Coefficients for passive cooling */
 143                 Name (_TC1, 0x02)
 144                 Name (_TC2, 0x05)
 145
 146                 /* Processors used for passive cooling */
 147                 Method (_PSL, 0, Serialized)
 148                 {
 149                         Return (\PPKG ())
 150                 }
 151
 152                 Method (_CRT, 0, NotSerialized) {
 153                         Return (C2K (99))
 154                 }
 155
 156                 Method (_PSV, 0, NotSerialized) {
 157                         Return (C2K (94))
 158                 }
 159
 160                 Method(_TMP) {
 161 #if defined(EC_LENOVO_H8_ME_WORKAROUND)
 162                         /* Avoid tripping alarm if ME isn't booted at all yet */
 163                         If (!MEB2 && \_SB.PCI0.LPCB.EC.TMP1 == 128) {
 164                                 Return (C2K(40))
 165                         }
 166                         MEB2 = 1
 167 #endif
 168                         Return (C2K(\_SB.PCI0.LPCB.EC.TMP1))
 169                 }
 170         }
 171 }