usb: handle device request and route to interfaces

1 files changed, 30 insertions, 0 deletions

diff --git a/src/usb/utils.h b/src/usb/utils.h
new file mode 100644
index 0000000..595a8b7
--- /dev/null
+++ b/src/usb/utils.h
@@ -0,0 +1,30 @@
+#ifndef __UTILS_H__
+#define __UTILS_H__
+
+#include "CH58x_common.h"
+
+enum USB_RESPONSE_TYPE {
+	USB_ACK = 0,
+	USB_NO_RESP,
+	USB_NAK,
+	USB_STALL,
+};
+
+void cfg_desc_append(void *desc);
+int ep_cb_register(int ep_num, void (*cb)());
+int if_cb_register(uint8_t if_num, void (*cb)(USB_SETUP_REQ *request));
+void dma_register(uint8_t endpoint_number, void *buf_addr);
+
+uint16_t
+usb_start_load_block(void *ep_IN_buf, void *buf, uint16_t len, int tog);
+void ctrl_start_load_block(void *buf, uint16_t len);
+int usb_load_next_chunk();
+void usb_flush();
+
+void set_handshake(uint8_t ep_num, int type, int tog, uint8_t len);
+void ctrl_ack();
+
+void clear_handshake_sent_flag();
+int handshake_sent();
+
+#endif /* __UTILS_H__ */