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31 lines
779 B
C
31 lines
779 B
C
/*
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* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdatomic.h>
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#include "soc/soc_caps.h"
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#include "esp_types.h"
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#include "esp_bit_defs.h"
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#include "esp_private/esp_gpio_reserve.h"
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static _Atomic uint64_t s_reserved_pin_mask = ATOMIC_VAR_INIT(~(SOC_GPIO_VALID_OUTPUT_GPIO_MASK));
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uint64_t esp_gpio_reserve(uint64_t gpio_mask)
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{
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return atomic_fetch_or(&s_reserved_pin_mask, gpio_mask);
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}
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uint64_t esp_gpio_revoke(uint64_t gpio_mask)
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{
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return atomic_fetch_and(&s_reserved_pin_mask, ~gpio_mask);
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}
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bool esp_gpio_is_reserved(uint64_t gpio_mask)
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{
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return atomic_load(&s_reserved_pin_mask) & gpio_mask;
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}
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// TODO: IDF-6968 reserve the pins that not fanned out regarding the SiP version
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