src/soc/intel/apollolake/acpi/gpiolib.asl

/* SPDX-License-Identifier: GPL-2.0-only */

Scope (\_SB)
{
	/* Get Pad Configuration DW0 register value */
	Method (GPC0, 0x1, Serialized)
	{
		/* Arg0 - GPIO DW0 address */
		Local0 = Arg0
		OperationRegion (PDW0, SystemMemory, Local0, 4)
		Field (PDW0, AnyAcc, NoLock, Preserve) {
			TEMP, 32
		}
		Return (TEMP)
	}

	/* Set Pad Configuration DW0 register value */
	Method (SPC0, 0x2, Serialized)
	{
		/* Arg0 - GPIO DW0 address */
		/* Arg1 - Value for DW0 register */
		Local0 = Arg0
		OperationRegion (PDW0, SystemMemory, Local0, 4)
		Field (PDW0, AnyAcc, NoLock, Preserve) {
			TEMP,32
		}
		TEMP = Arg1
	}

	/* Get Pad Configuration DW1 register value */
	Method (GPC1, 0x1, Serialized)
	{
		/* Arg0 - GPIO DW0 address */
		Local0 = Arg0 + 4
		OperationRegion (PDW1, SystemMemory, Local0, 4)
		Field (PDW1, AnyAcc, NoLock, Preserve) {
			TEMP, 32
		}
		Return (TEMP)
	}

	/* Set Pad Configuration DW1 register value */
	Method (SPC1, 0x2, Serialized)
	{
		/* Arg0 - GPIO DW0 address */
		/* Arg1 - Value for DW1 register */
		Local0 = Arg0 + 4
		OperationRegion (PDW1, SystemMemory, Local0, 4)
		Field(PDW1, AnyAcc, NoLock, Preserve) {
			TEMP,32
		}
		TEMP = Arg1
	}

	/* Get DW0 address of a given pad */
	Method (GDW0, 0x2, Serialized)
	{
		/* Arg0 - GPIO portid */
		/* Arg1 - GPIO pad offset relative to the community */
		Local1 = 0
		Local1 |= (Arg0 << 16) | CONFIG_PCR_BASE_ADDRESS
		Local1 |= (PAD_CFG_BASE + Arg1 * GPIO_NUM_PAD_CFG_REGS * 4)
		Return (Local1)
	}

	/* Calculate HOSTSW_REG address */
	Method (CHSA, 0x1, Serialized)
	{
		/* Arg0 - GPIO pad offset relative to the community */
		Local1 = HOSTSW_OWN_REG_0 + Arg0 / 32 * 4
		Return (Local1)
	}

	/* Get Host ownership register of GPIO Community */
	Method (GHO, 0x2, Serialized)
	{
		/* Arg0 - GPIO portid */
		/* Arg1 - GPIO pad offset relative to the community */

		OperationRegion (SHO0, SystemMemory, CONFIG_PCR_BASE_ADDRESS |
			(Arg0 << 16) | CHSA (Arg1), 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 */

		OperationRegion (SHO0, SystemMemory, CONFIG_PCR_BASE_ADDRESS |
			(Arg0 << 16) | CHSA (Arg1), 4)
		Field (SHO0, AnyAcc, NoLock, Preserve) {
			TEMP, 32
		}
		TEMP = Arg2
	}
}