src/mainboard/google/link/acpi/thermal.asl

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 // Thermal Zone
   4
   5 External (\PPKG, MethodObj)
   6
   7 #define HAVE_THERMALZONE
   8 Scope (\_TZ)
   9 {
  10         ThermalZone (CRIT)
  11         {
  12                 // Thermal zone polling frequency: 5 seconds
  13                 Name (_TZP, 50)
  14
  15                 // Convert from Degrees C to 1/10 Kelvin for ACPI
  16                 Method (CTOK, 1) {
  17                         // 10th of Degrees C
  18                         Local0 = Arg0 * 10
  19
  20                         // Convert to Kelvin
  21                         Local0 += 2732
  22
  23                         Return (Local0)
  24                 }
  25
  26                 // Threshold for OS to shutdown
  27                 Method (_CRT, 0, Serialized)
  28                 {
  29                         Return (CTOK (\TCRT))
  30                 }
  31
  32                 Method (_TMP, 0, Serialized)
  33                 {
  34                         // Get CPU Temperature from TIN9/PECI via EC
  35                         Local0 = \_SB.PCI0.LPCB.EC0.TIN9
  36
  37                         // Check for sensor not calibrated
  38                         If (Local0 == \_SB.PCI0.LPCB.EC0.TNCA) {
  39                                 Return (CTOK(0))
  40                         }
  41
  42                         // Check for sensor not present
  43                         If (Local0 == \_SB.PCI0.LPCB.EC0.TNPR) {
  44                                 Return (CTOK(0))
  45                         }
  46
  47                         // Check for sensor not powered
  48                         If (Local0 == \_SB.PCI0.LPCB.EC0.TNOP) {
  49                                 Return (CTOK(0))
  50                         }
  51
  52                         // Check for sensor bad reading
  53                         If (Local0 == \_SB.PCI0.LPCB.EC0.TBAD) {
  54                                 Return (CTOK(0))
  55                         }
  56
  57                         // Adjust by offset to get Kelvin
  58                         Local0 += \_SB.PCI0.LPCB.EC0.TOFS
  59
  60                         // Convert to 1/10 Kelvin
  61                         Local0 *= 10
  62                         Return (Local0)
  63                 }
  64         }
  65
  66         ThermalZone (THRM)
  67         {
  68                 Name (_TC1, 0x02)
  69                 Name (_TC2, 0x05)
  70
  71                 // Thermal zone polling frequency: 10 seconds
  72                 Name (_TZP, 100)
  73
  74                 // Thermal sampling period for passive cooling: 2 seconds
  75                 Name (_TSP, 20)
  76
  77                 // Convert from Degrees C to 1/10 Kelvin for ACPI
  78                 Method (CTOK, 1) {
  79                         // 10th of Degrees C
  80                         Local0 = Arg0 * 10
  81
  82                         // Convert to Kelvin
  83                         Local0 += 2732
  84
  85                         Return (Local0)
  86                 }
  87
  88                 // Threshold for OS to shutdown
  89                 Method (_CRT, 0, Serialized)
  90                 {
  91                         Return (CTOK (\TCRT))
  92                 }
  93
  94                 // Threshold for passive cooling
  95                 Method (_PSV, 0, Serialized)
  96                 {
  97                         Return (CTOK (\TPSV))
  98                 }
  99
 100                 // Processors used for passive cooling
 101                 Method (_PSL, 0, Serialized)
 102                 {
 103                         Return (\PPKG ())
 104                 }
 105
 106                 Method (_TMP, 0, Serialized)
 107                 {
 108                         // Get Temperature from TIN# set in NVS
 109                         Local0 = \_SB.PCI0.LPCB.EC0.TINS (TMPS)
 110
 111                         // Check for sensor not present
 112                         If (Local0 == \_SB.PCI0.LPCB.EC0.TNPR) {
 113                                 Return (CTOK(0))
 114                         }
 115
 116                         // Check for sensor not powered
 117                         If (Local0 == \_SB.PCI0.LPCB.EC0.TNOP) {
 118                                 Return (CTOK(0))
 119                         }
 120
 121                         // Check for sensor bad reading
 122                         If (Local0 == \_SB.PCI0.LPCB.EC0.TBAD) {
 123                                 Return (CTOK(0))
 124                         }
 125
 126                         // Adjust by offset to get Kelvin
 127                         Local0 += \_SB.PCI0.LPCB.EC0.TOFS
 128
 129                         // Convert to 1/10 Kelvin
 130                         Local0 *= 10
 131                         Return (Local0)
 132                 }
 133
 134                 /* CTDP Down */
 135                 Method (_AC0) {
 136                         If (\FLVL <= 0) {
 137                                 Return (CTOK (\F0OF))
 138                         } Else {
 139                                 Return (CTOK (\F0ON))
 140                         }
 141                 }
 142
 143                 /* CTDP Nominal */
 144                 Method (_AC1) {
 145                         If (\FLVL <= 1) {
 146                                 Return (CTOK (\F1OF))
 147                         } Else {
 148                                 Return (CTOK (\F1ON))
 149                         }
 150                 }
 151
 152                 Name (_AL0, Package () { TDP0 })
 153                 Name (_AL1, Package () { TDP1 })
 154
 155                 PowerResource (TNP0, 0, 0)
 156                 {
 157                         Method (_STA) {
 158                                 If (\FLVL <= 0) {
 159                                         Return (1)
 160                                 } Else {
 161                                         Return (0)
 162                                 }
 163                         }
 164                         Method (_ON)  {
 165                                 \FLVL = 0
 166                                 \_SB.PCI0.MCHC.STND ()
 167                                 Notify (\_TZ.THRM, 0x81)
 168                         }
 169                         Method (_OFF) {
 170                                 \FLVL = 1
 171                                 \_SB.PCI0.MCHC.STDN ()
 172                                 Notify (\_TZ.THRM, 0x81)
 173                         }
 174                 }
 175
 176                 PowerResource (TNP1, 0, 0)
 177                 {
 178                         Method (_STA) {
 179                                 If (\FLVL <= 1) {
 180                                         Return (1)
 181                                 } Else {
 182                                         Return (0)
 183                                 }
 184                         }
 185                         Method (_ON)  {
 186                                 \FLVL = 1
 187                                 Notify (\_TZ.THRM, 0x81)
 188                         }
 189                         Method (_OFF) {
 190                                 \FLVL = 1
 191                                 Notify (\_TZ.THRM, 0x81)
 192                         }
 193                 }
 194
 195                 Device (TDP0)
 196                 {
 197                         Name (_HID, EISAID ("PNP0C0B"))
 198                         Name (_UID, 0)
 199                         Name (_PR0, Package () { TNP0 })
 200                 }
 201
 202                 Device (TDP1)
 203                 {
 204                         Name (_HID, EISAID ("PNP0C0B"))
 205                         Name (_UID, 1)
 206                         Name (_PR0, Package () { TNP1 })
 207                 }
 208         }
 209 }