70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/* Copyright 2017 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef __CROS_EC_GPIO_CHIP_H
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#define __CROS_EC_GPIO_CHIP_H
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struct npcx_wui {
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uint8_t table : 2;
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uint8_t group : 3;
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uint8_t bit : 3;
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};
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/* Macros to initialize the MIWU mapping table. */
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#define NPCX_WUI_GPIO_PIN(port, index) NPCX_WUI_GPIO_##port##_##index
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#define WUI(tbl, grp, idx) ((struct npcx_wui) { .table = tbl, .group = grp, \
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.bit = idx })
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#define WUI_INT(tbl, grp) WUI(tbl, grp, 0)
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#define WUI_NONE ((struct npcx_wui) { .table = MIWU_TABLE_COUNT, .group = 0, \
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.bit = 0 })
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/* Macros to initialize the alternative and low voltage mapping table. */
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#define NPCX_GPIO_NONE ((struct npcx_gpio) {.port = 0, .bit = 0, .valid = 0})
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#define NPCX_GPIO(grp, pin) ((struct npcx_gpio) {.port = GPIO_PORT_##grp, \
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.bit = pin, .valid = 1})
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#define NPCX_ALT(grp, pin) ((struct npcx_alt) {.group = ALT_GROUP_##grp, \
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.bit = NPCX_DEVALT##grp##_##pin, .inverted = 0 })
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#define NPCX_ALT_INV(grp, pin) ((struct npcx_alt) {.group = ALT_GROUP_##grp, \
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.bit = NPCX_DEVALT##grp##_##pin, .inverted = 1 })
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#define ALT(port, index, alt) { NPCX_GPIO(port, index), alt },
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#define NPCX_LVOL_CTRL_ITEMS(ctrl) { NPCX_LVOL_CTRL_##ctrl##_0, \
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NPCX_LVOL_CTRL_##ctrl##_1, \
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NPCX_LVOL_CTRL_##ctrl##_2, \
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NPCX_LVOL_CTRL_##ctrl##_3, \
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NPCX_LVOL_CTRL_##ctrl##_4, \
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NPCX_LVOL_CTRL_##ctrl##_5, \
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NPCX_LVOL_CTRL_##ctrl##_6, \
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NPCX_LVOL_CTRL_##ctrl##_7, }
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/**
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* Switch NPCX UART pins back to normal GPIOs.
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*/
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void npcx_uart2gpio(void);
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/**
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* Switch NPCX UART pins to UART mode (depending on the currently selected
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* pad, see uart.c).
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*/
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void npcx_gpio2uart(void);
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/* Set input buffer of all 1.8v i2c ports. */
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void gpio_enable_1p8v_i2c_wake_up_input(int enable);
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/*
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* Include the MIWU, alternative and low-Voltage macro functions for GPIOs
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* depends on Nuvoton chip series.
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*/
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#if defined(CHIP_FAMILY_NPCX5)
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#include "gpio_chip-npcx5.h"
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#elif defined(CHIP_FAMILY_NPCX7)
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#include "gpio_chip-npcx7.h"
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#else
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#error "Unsupported chip family"
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#endif
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#endif /* __CROS_EC_GPIO_CHIP_H */
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