Implement led control in another module

barista/test/compat.c

@@ -0,0 +1,13 @@
+/* Copyright (c) 2025 Rodrigo Arias Mallo <rodarima@gmail.com>
+ * SPDX-License-Identifier: GPL-3.0-or-later */
+
+#include "compat.h"
+#include <time.h>
+
+unsigned long millis(void)
+{
+	struct timespec ts;
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+
+	return ts.tv_sec * 1000UL + ts.tv_nsec / 1000000UL;
+}

barista/test/compat.h

@@ -0,0 +1,17 @@
+/* Copyright (c) 2025 Rodrigo Arias Mallo <rodarima@gmail.com>
+ * SPDX-License-Identifier: GPL-3.0-or-later */
+
+#ifndef BARISTA_COMPAT_H
+#define BARISTA_COMPAT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+unsigned long millis(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BARISTA_COMPAT_H */

barista/test/test_led.c

@@ -0,0 +1,42 @@
+/* Copyright (c) 2025 Rodrigo Arias Mallo <rodarima@gmail.com>
+ * SPDX-License-Identifier: GPL-3.0-or-later */
+
+#include <stdio.h>
+#include "led.h"
+#include "compat.h"
+
+int main(void)
+{
+	struct led led;
+	unsigned long t0 = millis();
+	unsigned long step = 1000UL;
+
+	led_pattern(&led, t0, step, "000123456789abcdefff");
+
+	int last_level = -1;
+
+	unsigned long last_t = millis();
+	while (1) {
+		unsigned long t = millis();
+
+		if (t - t0 >= 10000UL)
+			break;
+
+		if (t - last_t < 50UL)
+			continue;
+
+		int level = led_level(&led, millis());
+		printf("|");
+		for (int i = 0; i < 256; i+=4) {
+			if (i < level)
+				printf("=");
+			else
+				printf(" ");
+		}
+		printf("|\n");
+		last_level = level;
+		last_t = t;
+	}
+
+	return 0;
+}