690bc1bb44
* Align our driver module layout to properly match Zephyr conventions, allowing proper CMake setup to amend the library for each type of driver.
33 lines
826 B
C
33 lines
826 B
C
/*
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* Copyright (c) 2022 The ZMK Contributors
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*
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* SPDX-License-Identifier: MIT
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*/
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#include "kscan_gpio.h"
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#include <stdlib.h>
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static int compare_ports(const void *a, const void *b) {
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const struct kscan_gpio *gpio_a = a;
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const struct kscan_gpio *gpio_b = b;
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return gpio_a->spec.port - gpio_b->spec.port;
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}
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void kscan_gpio_list_sort_by_port(struct kscan_gpio_list *list) {
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qsort(list->gpios, list->len, sizeof(list->gpios[0]), compare_ports);
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}
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int kscan_gpio_pin_get(const struct kscan_gpio *gpio, struct kscan_gpio_port_state *state) {
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if (gpio->spec.port != state->port) {
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state->port = gpio->spec.port;
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const int err = gpio_port_get(state->port, &state->value);
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if (err) {
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return err;
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}
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}
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return (state->value & BIT(gpio->spec.pin)) != 0;
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}
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