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Diffstat (limited to 'Documentation/superio/common/ssdt.md')
| -rw-r--r-- | Documentation/superio/common/ssdt.md | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/Documentation/superio/common/ssdt.md b/Documentation/superio/common/ssdt.md index f2bb3346a00e..2f4049ef1255 100644 --- a/Documentation/superio/common/ssdt.md +++ b/Documentation/superio/common/ssdt.md @@ -45,12 +45,33 @@ chip superio/common end ``` +## Automatically generated methods + +The following methods are generated for each SuperIO: +## AMTX() +Acquire the global mutex and enter config mode. +It's called this at the begining of an atomic operation to make sure +no other ACPI code messes with the config space while working on it. + +## RMTX() +Exit config mode and release the global mutex. +It's called at the end of an atomic operation. + +## SLDN(Arg0) +Selects the (virtual) LDN given as Arg0. +This method isn't guarded with the global mutex. + +## DLDN(Arg0) +Disables the (virtual) LDN given as Arg0. +This method aquires the global mutex. + +## QLDN(Arg0) +Queries the state of the (virtual) LDN given as Arg0. +This method quires the global mutex. + ## TODO 1) Add ACPI HIDs to every SuperIO driver -2) Don't guess ACPI HID of LDNs if it's known -3) Add "enter config" and "exit config" bytes -4) Generate support methods that allow +2) Generate support methods that allow * Setting resource settings at runtime * Getting resource settings at runtime - * Disabling LDNs at runtime |