copyright notices, coroutines

1 files changed, 19 insertions, 4 deletions

diff --git a/usb_keyboard.h b/usb_keyboard.h
index 9460feb..e989700 100644
--- a/usb_keyboard.h
+++ b/usb_keyboard.h
@@ -1,10 +1,25 @@
+/* usb_keyboard.h - Implementation of a USB keyboard device
+ *
+ * Copyright (C) 2024  Luke T. Shumaker <lukeshu@lukeshu.com>
+ * SPDX-Licence-Identifier: AGPL-3.0-or-later
+ */
+
 #ifndef _USB_KEYBOARD_H_
 #define _USB_KEYBOARD_H_
 
-void usb_keyboard_init(void);
-void usb_keyboard_task(void);
+#include "coroutine.h"
+
+typedef cr_chan_t(uint32_t, int) usb_keyboard_chan_t;
 
-bool usb_keyboard_send_char(uint32_t ch);
-bool usb_keyboard_is_flushed(void);
+typedef struct {
+	usb_keyboard_chan_t *chan;
+	uint32_t             rune;
+	uint8_t              report_id;
+	uint8_t              modifier;
+	uint8_t              keycodes[0];
+} usb_keyboard_stack_t;
+
+void usb_keyboard_init(void);
+void usb_keyboard_cr(void *stack);
 
 #endif /* _USB_KEYBOARD_H_ */