| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2011 Advanced Micro Devices, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| /* Wake status package */ |
| Name(WKST,Package(){Zero, Zero}) |
| |
| /* |
| * \_PTS - Prepare to Sleep method |
| * |
| * Entry: |
| * Arg0=The value of the sleeping state S1=1, S2=2, etc |
| * |
| * Exit: |
| * -none- |
| * |
| * The _PTS control method is executed at the beginning of the sleep process |
| * for S1-S5. The sleeping value is passed to the _PTS control method. This |
| * control method may be executed a relatively long time before entering the |
| * sleep state and the OS may abort the operation without notification to |
| * the ACPI driver. This method cannot modify the configuration or power |
| * state of any device in the system. |
| */ |
| Method(\_PTS, 1) { |
| /* DBGO("\\_PTS\n") */ |
| /* DBGO("From S0 to S") */ |
| /* DBGO(Arg0) */ |
| /* DBGO("\n") */ |
| |
| /* Don't allow PCIRST# to reset USB */ |
| if (LEqual(Arg0,3)){ |
| Store(0,URRE) |
| } |
| |
| /* Clear sleep SMI status flag and enable sleep SMI trap. */ |
| /*Store(One, CSSM) |
| Store(One, SSEN)*/ |
| |
| /* On older chips, clear PciExpWakeDisEn */ |
| /*if (LLessEqual(\_SB.SBRI, 0x13)) { |
| * Store(0,\_SB.PWDE) |
| *} |
| */ |
| |
| /* Clear wake status structure. */ |
| Store(0, Index(WKST,0)) |
| Store(0, Index(WKST,1)) |
| } /* End Method(\_PTS) */ |
| |
| /* |
| * \_BFS OEM Back From Sleep method |
| * |
| * Entry: |
| * Arg0=The value of the sleeping state S1=1, S2=2 |
| * |
| * Exit: |
| * -none- |
| */ |
| Method(\_BFS, 1) { |
| /* DBGO("\\_BFS\n") */ |
| /* DBGO("From S") */ |
| /* DBGO(Arg0) */ |
| /* DBGO(" to S0\n") */ |
| } |
| |
| /* |
| * \_WAK System Wake method |
| * |
| * Entry: |
| * Arg0=The value of the sleeping state S1=1, S2=2 |
| * |
| * Exit: |
| * Return package of 2 DWords |
| * Dword 1 - Status |
| * 0x00000000 wake succeeded |
| * 0x00000001 Wake was signaled but failed due to lack of power |
| * 0x00000002 Wake was signaled but failed due to thermal condition |
| * Dword 2 - Power Supply state |
| * if non-zero the effective S-state the power supply entered |
| */ |
| Method(\_WAK, 1) { |
| /* DBGO("\\_WAK\n") */ |
| /* DBGO("From S") */ |
| /* DBGO(Arg0) */ |
| /* DBGO(" to S0\n") */ |
| |
| /* Re-enable HPET */ |
| Store(1,HPDE) |
| |
| /* Restore PCIRST# so it resets USB */ |
| if (LEqual(Arg0,3)){ |
| Store(1,URRE) |
| } |
| |
| /* Arbitrarily clear PciExpWakeStatus */ |
| Store(PWST, Local1) |
| Store(Local1, PWST) |
| |
| /* if(DeRefOf(Index(WKST,0))) { |
| * Store(0, Index(WKST,1)) |
| * } else { |
| * Store(Arg0, Index(WKST,1)) |
| * } |
| */ |
| Return(WKST) |
| } /* End Method(\_WAK) */ |