src/ec/starlabs/merlin/acpi/suspend.asl

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 Method (RPTS, 1, Serialized)
   4 {
   5
   6         /* Store current EC settings in CMOS */
   7         Switch (ToInteger (\_SB.PCI0.LPCB.EC.ECRD (RefOf (\_SB.PCI0.LPCB.EC.TPLE))))
   8         {
   9                 // 0x00 == Enabled    == 0x00
  10                 // 0x11 == Re-enabled == 0x00
  11                 // 0x22 == Disabled   == 0x01
  12                 Case (0x00)
  13                 {
  14                         \_SB.PCI0.LPCB.TPLC = 0x00
  15                 }
  16                 Case (0x11)
  17                 {
  18                         \_SB.PCI0.LPCB.TPLC = 0x00
  19                 }
  20                 Case (0x22)
  21                 {
  22                         \_SB.PCI0.LPCB.TPLC = 0x01
  23                 }
  24         }
  25
  26         \_SB.PCI0.LPCB.FLKC =
  27                 \_SB.PCI0.LPCB.EC.ECRD (RefOf (\_SB.PCI0.LPCB.EC.FLKE))
  28
  29         Switch (ToInteger (\_SB.PCI0.LPCB.EC.ECRD (RefOf (\_SB.PCI0.LPCB.EC.KLSE))))
  30         {
  31                 // 0x00 == Disabled == 0x00
  32                 // 0xdd == Enabled  == 0x01
  33                 Case (0x00)
  34                 {
  35                         \_SB.PCI0.LPCB.KLSC = 0x00
  36                 }
  37                 Case (0xdd)
  38                 {
  39                         \_SB.PCI0.LPCB.KLSC = 0x01
  40                 }
  41         }
  42
  43         Switch (ToInteger (\_SB.PCI0.LPCB.EC.ECRD (RefOf (\_SB.PCI0.LPCB.EC.KLBE))))
  44         {
  45                 // 0xdd == On   == 0x00
  46                 // 0xcc == Off  == 0x01
  47                 // 0xbb == Low  == 0x02
  48                 // 0xaa == High == 0x03
  49                 Case (0xdd)
  50                 {
  51                         \_SB.PCI0.LPCB.KLBC = 0x00
  52                 }
  53                 Case (0xcc)
  54                 {
  55                         \_SB.PCI0.LPCB.KLBC = 0x01
  56                 }
  57                 Case (0xbb)
  58                 {
  59                         \_SB.PCI0.LPCB.KLBC = 0x02
  60                 }
  61                 Case (0xaa)
  62                 {
  63                         \_SB.PCI0.LPCB.KLBC = 0x03
  64                 }
  65         }
  66
  67         /*
  68          * Disable ACPI support.
  69          * This should always be the last action before entering S4 or S5.
  70          */
  71         \_SB.PCI0.LPCB.EC.ECWR(0x00, RefOf(\_SB.PCI0.LPCB.EC.OSFG))
  72 }
  73
  74 Method (RWAK, 1, Serialized)
  75 {
  76         /*
  77          * Enable ACPI support.
  78          * This should always be the first action when exiting S4 or S5.
  79          */
  80         \_SB.PCI0.LPCB.EC.ECWR(0x01, RefOf(\_SB.PCI0.LPCB.EC.OSFG))
  81
  82         /* Restore EC settings from CMOS */
  83         Switch (ToInteger (\_SB.PCI0.LPCB.TPLC))
  84         {
  85                 // 0x00 == Enabled    == 0x00
  86                 // 0x00 == Re-enabled == 0x11
  87                 // 0x01 == Disabled   == 0x22
  88                 Case (0x00)
  89                 {
  90                         \_SB.PCI0.LPCB.EC.ECWR (0x00,  RefOf(\_SB.PCI0.LPCB.EC.TPLE))
  91                 }
  92                 Case (0x01)
  93                 {
  94                         \_SB.PCI0.LPCB.EC.ECWR (0x22,  RefOf(\_SB.PCI0.LPCB.EC.TPLE))
  95                 }
  96         }
  97
  98         \_SB.PCI0.LPCB.EC.ECWR (\_SB.PCI0.LPCB.FLKC,  RefOf(\_SB.PCI0.LPCB.EC.FLKE))
  99
 100         Switch (ToInteger (\_SB.PCI0.LPCB.KLSC))
 101         {
 102                 // 0x00 == Disabled == 0x00
 103                 // 0x01 == Enabled  == 0xdd
 104                 Case (0x00)
 105                 {
 106                         \_SB.PCI0.LPCB.EC.ECWR (0x00,  RefOf(\_SB.PCI0.LPCB.EC.KLSE))
 107                 }
 108                 Case (0x01)
 109                 {
 110                         \_SB.PCI0.LPCB.EC.ECWR (0xdd,  RefOf(\_SB.PCI0.LPCB.EC.KLSE))
 111                 }
 112         }
 113
 114         Switch (ToInteger (\_SB.PCI0.LPCB.KLBC))
 115         {
 116                 // 0x00 == On   == 0xdd
 117                 // 0x01 == Off  == 0xcc
 118                 // 0x02 == Low  == 0xbb
 119                 // 0x03 == High == 0xaa
 120                 Case (0x00)
 121                 {
 122                         \_SB.PCI0.LPCB.EC.ECWR (0xdd,  RefOf(\_SB.PCI0.LPCB.EC.KLBE))
 123                 }
 124                 Case (0x01)
 125                 {
 126                         \_SB.PCI0.LPCB.EC.ECWR (0xcc,  RefOf(\_SB.PCI0.LPCB.EC.KLBE))
 127                 }
 128                 Case (0x02)
 129                 {
 130                         \_SB.PCI0.LPCB.EC.ECWR (0xbb,  RefOf(\_SB.PCI0.LPCB.EC.KLBE))
 131                 }
 132                 Case (0x03)
 133                 {
 134                         \_SB.PCI0.LPCB.EC.ECWR (0xaa,  RefOf(\_SB.PCI0.LPCB.EC.KLBE))
 135                 }
 136         }
 137 }