ea40f3af24
The Nuvoton NCT38xx is a multi-function device providing a TCPC controller and a I/O expander (GPIO driver). Add a multi-function driver to manage exclusive access to the device. Tested with "twister -T tests/drivers/build_all/gpio". Signed-off-by: Keith Short <keithshort@google.com>
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/*
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* Copyright (c) 2021 Nuvoton Technology Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_GPIO_GPIO_NCT38XX_H_
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#define ZEPHYR_DRIVERS_GPIO_GPIO_NCT38XX_H_
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#include <zephyr/device.h>
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/drivers/i2c.h>
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#include <zephyr/kernel.h>
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/* NCT38XX controller register */
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#define NCT38XX_REG_ALERT 0x10
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#define NCT38XX_REG_ALERT_MASK 0x12
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#define NCT38XX_REG_GPIO_DATA_IN(n) (0xC0 + ((n) * 8))
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#define NCT38XX_REG_GPIO_DATA_OUT(n) (0xC1 + ((n) * 8))
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#define NCT38XX_REG_GPIO_DIR(n) (0xC2 + ((n) * 8))
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#define NCT38XX_REG_GPIO_OD_SEL(n) (0xC3 + ((n) * 8))
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#define NCT38XX_REG_GPIO_ALERT_RISE(n) (0xC4 + ((n) * 8))
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#define NCT38XX_REG_GPIO_ALERT_FALL(n) (0xC5 + ((n) * 8))
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#define NCT38XX_REG_GPIO_ALERT_LEVEL(n) (0xC6 + ((n) * 8))
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#define NCT38XX_REG_GPIO_ALERT_MASK(n) (0xC7 + ((n) * 8))
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#define NCT38XX_REG_MUX_CONTROL 0xD0
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#define NCT38XX_REG_GPIO_ALERT_STAT(n) (0xD4 + (n))
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/* NCT38XX controller register field */
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#define NCT38XX_REG_ALERT_VENDOR_DEFINDED_ALERT 15
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#define NCT38XX_REG_ALERT_MASK_VENDOR_DEFINDED_ALERT 15
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/**
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* @brief Dispatch GPIO port ISR
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*
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* @param dev GPIO port device
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* @return 0 if successful, otherwise failed.
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*/
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int gpio_nct38xx_dispatch_port_isr(const struct device *dev);
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#endif /* ZEPHYR_DRIVERS_GPIO_GPIO_NCT38XX_H_*/
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