1 files changed, 48 insertions, 0 deletions
diff --git a/cmd/harness/main.c b/cmd/harness/main.c
new file mode 100644
index 0000000..1fd9f8c
--- /dev/null
+++ b/cmd/harness/main.c
@@ -0,0 +1,48 @@
+/* main.c - Main entry point and event loop for sbc-harness
+ *
+ * Copyright (C) 2024  Luke T. Shumaker <lukeshu@lukeshu.com>
+ * SPDX-Licence-Identifier: AGPL-3.0-or-later
+ */
+
+/* newlib */
+#include <string.h> /* for strlen() */
+
+/* pico-sdk */
+#include "pico/stdlib.h"
+
+/* local */
+#include "coroutine.h"
+#include "usb_common.h"
+#include "usb_keyboard.h"
+
+COROUTINE hello_world_cr(void *_chan) {
+	const char *msg = "Hello world!\n";
+	usb_keyboard_rpc_t *chan = _chan;
+	cr_begin();
+
+	for (size_t i = 0;; i = (i+1) % strlen(msg)) {
+		cr_rpc_req(chan, NULL, msg[i]);
+	}
+
+	cr_end();
+}
+
+int main() {
+	/* initialization */
+	stdio_uart_init();
+	//gpio_init(PICO_DEFAULT_LED_PIN);
+	//gpio_set_dir(PICO_DEFAULT_LED_PIN, GPIO_OUT);
+
+	usb_common_earlyinit();
+	usb_keyboard_init();
+	usb_common_lateinit();
+
+	/* set up coroutines */
+	coroutine_add(usb_common_cr, NULL);
+	usb_keyboard_rpc_t keyboard_chan = {0};
+	coroutine_add(usb_keyboard_cr, &keyboard_chan);
+	coroutine_add(hello_world_cr, &keyboard_chan);
+
+	/* Event loop. */
+	coroutine_main();
+}