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69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
#ifndef GPIO_HPP
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#define GPIO_HPP
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#include <QObject>
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#ifdef __aarch64__
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#include <gpiod.h>
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#else
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struct gpiod_line_request
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{
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};
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struct gpiod_request_config
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{
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};
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struct gpiod_line_settings
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{
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};
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struct gpiod_line_config
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{
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};
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struct gpiod_chip
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{
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};
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enum gpiod_line_value
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{
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GPIOD_LINE_VALUE_ERROR = -1,
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/**< Returned to indicate an error when reading the value. */
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GPIOD_LINE_VALUE_INACTIVE = 0,
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/**< Line is logically inactive. */
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GPIOD_LINE_VALUE_ACTIVE = 1,
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/**< Line is logically active. */
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};
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enum gpiod_line_direction
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{
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GPIOD_LINE_DIRECTION_AS_IS = 1,
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/**< Request the line(s), but don't change direction. */
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GPIOD_LINE_DIRECTION_INPUT,
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/**< Direction is input - for reading the value of an externally driven
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* GPIO line. */
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GPIOD_LINE_DIRECTION_OUTPUT,
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/**< Direction is output - for driving the GPIO line. */
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};
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#endif
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class GPIO : public QObject
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{
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Q_OBJECT
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public:
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enum Direction
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{
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Input,
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Output
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};
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explicit GPIO(QObject *parent = nullptr);
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~GPIO();
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void configure_pin(Direction dir, uint8_t gpio, bool state = false);
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void set_value(bool val);
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bool value();
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private:
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struct gpiod_line_request *request_output_line(const char *chip_path, unsigned int offset,
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enum gpiod_line_value value, const char *consumer);
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struct gpiod_line_request *request_input_line(const char *chip_path, unsigned int offset, const char *consumer);
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struct gpiod_line_request *m_request;
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unsigned int m_offset;
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};
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#endif // GPIO_HPP
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