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/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __AP_PWRSEQ_SIGNAL_GPIO_H__
#define __AP_PWRSEQ_SIGNAL_GPIO_H__
#define PWR_SIG_TAG_GPIO PWR_GPIO_
/*
* Generate enums for the GPIOs.
* These enums are only used internally
* to assign an index to each signal that is specific
* to the source.
*/
#define TAG_GPIO(tag, name) DT_CAT(tag, name)
#define PWR_GPIO_ENUM(id) TAG_GPIO(PWR_SIG_TAG_GPIO, PWR_SIGNAL_ENUM(id)),
enum pwr_sig_gpio {
#if HAS_GPIO_SIGNALS
DT_FOREACH_STATUS_OKAY(intel_ap_pwrseq_gpio, PWR_GPIO_ENUM)
#endif
PWR_SIG_GPIO_COUNT
};
#undef PWR_GPIO_ENUM
#undef TAG_GPIO
/**
* @brief Get the value of the GPIO power signal.
*
* @param signal The power_signal_gpios value to get.
* @return the current value of the power signal.
*/
int power_signal_gpio_get(enum pwr_sig_gpio gpio);
/**
* @brief Set the output of this GPIO power signal.
*
* @param signal The GPIO to set.
* @param value The output value to set it to.
* @return 0 is successful
* @return negative If output cannot be set.
*/
int power_signal_gpio_set(enum pwr_sig_gpio gpio, int value);
/**
* @brief Enable the GPIO interrupt
*
* @param signal The power_signal_gpios to enable.
* @return 0 if successful
* @return -error if failed
*/
int power_signal_gpio_enable(enum pwr_sig_gpio gpio);
/**
* @brief Disable the GPIO interrupt
*
* @param signal The power_signal_gpios to disable.
* @return 0 if successful
* @return -error if failed
*/
int power_signal_gpio_disable(enum pwr_sig_gpio gpio);
/**
* @brief Initialize the GPIOs for the power signals.
*/
void power_signal_gpio_init(void);
#endif /* __AP_PWRSEQ_SIGNAL_GPIO_H__ */
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