/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <soc/gpio_defs.h>
#include <soc/irq.h>
#include <soc/pcr_ids.h>


Device (GPIO)
{
	Name (_HID, "INT3455")
	Name (_UID, 0)
	Name (_DDN, "GPIO Controller")

	Name (RBUF, ResourceTemplate()
	{
		Memory32Fixed (ReadWrite, 0, 0, COM0)
		Memory32Fixed (ReadWrite, 0, 0, COM1)
		Memory32Fixed (ReadWrite, 0, 0, COM2)
		Memory32Fixed (ReadWrite, 0, 0, COM4)
		Memory32Fixed (ReadWrite, 0, 0, COM5)
		Interrupt (ResourceConsumer, Level, ActiveLow, Shared,,, GIRQ)
			{ GPIO_IRQ14 }
	})

	Method (_CRS, 0, NotSerialized)
	{
		/* GPIO Community 0 */
		CreateDWordField (^RBUF, ^COM0._BAS, BAS0)
		CreateDWordField (^RBUF, ^COM0._LEN, LEN0)
		Store (^^PCRB (PID_GPIOCOM0), BAS0)
		Store (GPIO_BASE_SIZE, LEN0)

		/* GPIO Community 1 */
		CreateDWordField (^RBUF, ^COM1._BAS, BAS1)
		CreateDWordField (^RBUF, ^COM1._LEN, LEN1)
		Store (^^PCRB (PID_GPIOCOM1), BAS1)
		Store (GPIO_BASE_SIZE, LEN1)

		/* GPIO Community 2 */
		CreateDWordField (^RBUF, ^COM2._BAS, BAS2)
		CreateDWordField (^RBUF, ^COM2._LEN, LEN2)
		Store (^^PCRB (PID_GPIOCOM2), BAS2)
		Store (GPIO_BASE_SIZE, LEN2)

		/* GPIO Community 4 */
		CreateDWordField (^RBUF, ^COM4._BAS, BAS4)
		CreateDWordField (^RBUF, ^COM4._LEN, LEN4)
		Store (^^PCRB (PID_GPIOCOM4), BAS4)
		Store (GPIO_BASE_SIZE, LEN4)

		/* GPIO Community 5 */
		CreateDWordField (^RBUF, ^COM5._BAS, BAS5)
		CreateDWordField (^RBUF, ^COM5._LEN, LEN5)
		Store (^^PCRB (PID_GPIOCOM5), BAS5)
		Store (GPIO_BASE_SIZE, LEN5)

		Return (RBUF)
	}

	Method (_STA, 0, NotSerialized)
	{
		Return (0xF)
	}
}

/*
 * Get GPIO DW0 Address
 * Arg0 - GPIO Number
 */
Method (GADD, 1, NotSerialized)
{
	/* GPIO Community 0 */
	If (LAnd (LGreaterEqual (Arg0, GPP_G0), LLessEqual (Arg0, GPP_A23)))
	{
		Store (PID_GPIOCOM0, Local0)
		Subtract (Arg0, GPP_A0, Local1)
	}
	/* GPIO Community 1 */
	If (LAnd (LGreaterEqual (Arg0, GPP_H0), LLessEqual (Arg0, GPP_F19)))
	{
		Store (PID_GPIOCOM1, Local0)
		Subtract (Arg0, GPP_D0, Local1)
	}
	/* GPIO Community 2 */
	If (LAnd (LGreaterEqual (Arg0, GPD0), LLessEqual (Arg0, GPD11)))
	{
		Store (PID_GPIOCOM2, Local0)
		Subtract (Arg0, GPD0, Local1)
	}
	/* GPIO Community 4 */
	If (LAnd (LGreaterEqual (Arg0, GPP_C0), LLessEqual (Arg0, GPP_E23)))
	{
		Store (PID_GPIOCOM4, Local0)
		Subtract (Arg0, GPP_C0, Local1)
	}
	/* GPIO Community 05*/
	If (LAnd (LGreaterEqual (Arg0, GPP_R0), LLessEqual (Arg0, GPP_S7)))
	{
		Store (PID_GPIOCOM5, Local0)
		Subtract (Arg0, GPP_R0, Local1)
	}
	Store (PCRB (Local0), Local2)
	Add (Local2, PAD_CFG_BASE, Local2)
	Return (Add (Local2, Multiply (Local1, 16)))
}

/*
 * Get GPIO Value
 * Arg0 - GPIO Number
 */
Method (GRXS, 1, Serialized)
{
	OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
	Field (PREG, AnyAcc, NoLock, Preserve)
	{
		VAL0, 32
	}
	And (GPIORXSTATE_MASK, ShiftRight (VAL0, GPIORXSTATE_SHIFT), Local0)

	Return (Local0)
}