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/* Copyright 2018 The ChromiumOS Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 *
 * ITE IT8300 I/O Port expander driver header
 */

#ifndef __CROS_EC_IOEXPANDER_IT8300_H
#define __CROS_EC_IOEXPANDER_IT8300_H

#include "i2c.h"

/* Gather Interrupt Status Register */
#define IT8300_GISR 0x0

/* Interrupt Status Registers */
#define IT8300_ISR_A 0x6
#define IT8300_ISR_B 0x7
#define IT8300_ISR_C 0x28
#define IT8300_ISR_D 0x2E
#define IT8300_ISR_E 0x2F

/* Port Data Register Groups */
#define IT8300_PDGR_A 0x1
#define IT8300_PDGR_B 0x2
#define IT8300_PDGR_C 0x3
#define IT8300_PDGR_D 0x4
#define IT8300_PDGR_E 0x5

/* GPIO Port Control n Registers */
#define IT8300_GPCR_A0 0x10
#define IT8300_GPCR_A1 0x11
#define IT8300_GPCR_A2 0x12
#define IT8300_GPCR_A3 0x13
#define IT8300_GPCR_A4 0x14
#define IT8300_GPCR_A5 0x15
#define IT8300_GPCR_A6 0x16
#define IT8300_GPCR_A7 0x17

#define IT8300_GPCR_B0 0x18
#define IT8300_GPCR_B1 0x19
#define IT8300_GPCR_B2 0x1A
#define IT8300_GPCR_B3 0x1B
#define IT8300_GPCR_B4 0x1C
#define IT8300_GPCR_B5 0x1D
#define IT8300_GPCR_B6 0x1E

#define IT8300_GPCR_C0 0x20
#define IT8300_GPCR_C1 0x21
#define IT8300_GPCR_C2 0x22
#define IT8300_GPCR_C3 0x23
#define IT8300_GPCR_C4 0x24
#define IT8300_GPCR_C5 0x25
#define IT8300_GPCR_C6 0x26

#define IT8300_GPCR_D0 0x08
#define IT8300_GPCR_D1 0x09
#define IT8300_GPCR_D2 0x0A
#define IT8300_GPCR_D3 0x0B
#define IT8300_GPCR_D4 0x0C
#define IT8300_GPCR_D5 0x0D

#define IT8300_GPCR_E0 0x32

#define IT8300_GPCR_E2 0x34
#define IT8300_GPCR_E3 0x35
#define IT8300_GPCR_E4 0x36
#define IT8300_GPCR_E5 0x37
#define IT8300_GPCR_E6 0x38

#define IT8300_GPCR_GPI_MODE BIT(7)
#define IT8300_GPCR_GP0_MODE BIT(6)
#define IT8300_GPCR_PULL_UP_EN BIT(2)
#define IT8300_GPCR_PULL_DN_EN BIT(1)

/* EXGPIO Clear Alert */
#define IT8300_ECA 0x30

/* EXGPIO Alert Enable */
#define IT8300_EAE 0x31

/* Port Data Mirror Registers */
#define IT8300_PDMRA_A 0x29
#define IT8300_PDMRA_B 0x2A
#define IT8300_PDMRA_C 0x2B
#define IT8300_PDMRA_D 0x2C
#define IT8300_PDMRA_E 0x2D

/* Output Open-Drain Enable Registers */
#define IT8300_OODER_A 0x39
#define IT8300_OODER_B 0x3A
#define IT8300_OODER_C 0x3B
#define IT8300_OODER_D 0x3C
#define IT8300_OODER_E 0x3D

/* IT83200 Port GPIOs */
#define IT8300_GPX_0 BIT(0)
#define IT8300_GPX_1 BIT(1)
#define IT8300_GPX_2 BIT(2)
#define IT8300_GPX_3 BIT(3)
#define IT8300_GPX_4 BIT(4)
#define IT8300_GPX_5 BIT(5)
#define IT8300_GPX_6 BIT(6)
#define IT8300_GPX_7 BIT(7)

#endif /* __CROS_EC_IOEXPANDER_IT8300_H */