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https://github.com/ByteWelder/Tactility.git
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399dca5e14
* **New Features** * Added a GPIO hardware abstraction layer for reading pin levels from applications. * Applications can now query the number of available GPIO pins so they can adapt to different devices. * **Chores** * Integrations updated so GPIO capabilities are discoverable and exported to running applications.
31 lines
799 B
C
31 lines
799 B
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Logical GPIO pin identifier used by the HAL. Typically maps to the SoC GPIO number. */
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typedef unsigned int GpioPin;
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/** Value indicating that no GPIO pin is used/applicable. */
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#define GPIO_NO_PIN -1
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/** Read the current logic level of a pin.
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* The pin should be configured for input or input/output.
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* @param[in] pin The pin to read.
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* @return true if the level is high, false if low. If the pin is invalid, the
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* behavior is implementation-defined and may return false.
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*/
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bool tt_hal_gpio_get_level(GpioPin pin);
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/** Get the number of GPIO pins available on this platform.
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* @return The count of valid GPIO pins.
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*/
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int tt_hal_gpio_get_pin_count();
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#ifdef __cplusplus
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}
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#endif
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