diff options
Diffstat (limited to 'src/soc/intel/apollolake/acpi/gpiolib.asl')
| -rw-r--r-- | src/soc/intel/apollolake/acpi/gpiolib.asl | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/acpi/gpiolib.asl b/src/soc/intel/apollolake/acpi/gpiolib.asl index cec6d36722..0acfb67016 100644 --- a/src/soc/intel/apollolake/acpi/gpiolib.asl +++ b/src/soc/intel/apollolake/acpi/gpiolib.asl @@ -64,4 +64,55 @@ Scope (\_SB) } Store (Arg1, TEMP) } + + /* Get DW0 address of a given pad */ + Method (GDW0, 0x2, Serialized) + { + /* Arg0 - GPIO portid */ + /* Arg1 - GPIO pad offset relative to the community */ + Store (0, Local1) + Or( Or (ShiftLeft (Arg0, 16), CONFIG_IOSF_BASE_ADDRESS), + Local1, Local1) + Or( Add (PAD_CFG_BASE, Multiply (Arg1, 8)), Local1, Local1) + Return (Local1) + } + + /* Calculate HOSTSW_REG address */ + Method (CHSA, 0x1, Serialized) + { + /* Arg0 - GPIO pad offset relative to the community */ + Add (HOSTSW_OWN_REG_BASE, Multiply (Divide (Arg0, 32), 4), Local1) + Return (Local1) + } + + /* Get Host ownership register of GPIO Community */ + Method (GHO, 0x2, Serialized) + { + /* Arg0 - GPIO portid */ + /* Arg1 - GPIO pad offset relative to the community */ + Store (CHSA (Arg1), Local1) + + OperationRegion (SHO0, SystemMemory, Or ( Or + (CONFIG_IOSF_BASE_ADDRESS, ShiftLeft (Arg0, 16)), Local1), 4) + Field (SHO0, AnyAcc, NoLock, Preserve) { + TEMP, 32 + } + Return (TEMP) + } + + /* Set Host ownership register of GPIO Community */ + Method (SHO, 0x3, Serialized) + { + /* Arg0 - GPIO portid */ + /* Arg1 - GPIO pad offset relative to the community */ + /* Arg2 - Value for Host own register */ + Store (CHSA (Arg1), Local1) + + OperationRegion (SHO0, SystemMemory, Or ( Or + (CONFIG_IOSF_BASE_ADDRESS, ShiftLeft (Arg0, 16)), Local1), 4) + Field (SHO0, AnyAcc, NoLock, Preserve) { + TEMP, 32 + } + Store (Arg2, TEMP) + } } |