1 files changed, 38 insertions, 0 deletions
diff --git a/usb/txhandler.h b/usb/txhandler.h
new file mode 100644
index 0000000..3e6bc4c
--- /dev/null
+++ b/usb/txhandler.h
@@ -0,0 +1,38 @@
+/*
+ * usb/txhandler.h -- USB Transmission Handling
+ *
+ * Copyright (C) 2017 Tomasz Kramkowski <tk@the-tk.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef FMK_USB_TXHANDLER_H
+#define FMK_USB_TXHANDLER_H
+
+#include <reg/usbotg.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+struct tx_ctx {
+	volatile struct usb0_bd *bdt;
+	bool odd, data01;
+	void *data;
+	size_t size, max;
+};
+#define TX_CTX(b, m) ((struct tx_ctx){ .bdt = (b), .max = (m) })
+
+void tx_que(struct tx_ctx *tx, void *data, size_t size);
+bool tx_push(struct tx_ctx *tx);
+bool tx_isempty(struct tx_ctx *tx);
+
+#endif /* FMK_USB_TXHANDLER_H */