added usbd_edpt_xfer/usbd_edpt_busy to replace dcd_edpt_transfer/dcd_edpt_busy()

- improve fifo write/read_n with only one lock
- use usbd_edpt_xfer/usbd_edpt_busy for hid/cdc/msc class driver
- replace cdc read's pending_read_from_host by usbd_edpt_busy()

1 files changed, 9 insertions, 2 deletions

diff --git a/src/device/usbd_pvt.h b/src/device/usbd_pvt.h
index f20532627..706857d45 100644
--- a/src/device/usbd_pvt.h
+++ b/src/device/usbd_pvt.h
@@ -33,10 +33,11 @@
  extern "C" {
 #endif
 
+bool usbd_init (void);
+
 //--------------------------------------------------------------------+
-// INTERNAL API for stack management
+// USBD Endpoint API
 //--------------------------------------------------------------------+
-bool usbd_init (void);
 
 // Carry out Data and Status stage of control transfer
 // - If len = 0, it is equivalent to sending status only
@@ -46,6 +47,12 @@ bool usbd_control_xfer(uint8_t rhport, tusb_control_request_t const * request, v
 // Send STATUS (zero length) packet
 bool usbd_control_status(uint8_t rhport, tusb_control_request_t const * request);
 
+// Submit a usb transfer
+bool usbd_edpt_xfer        (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes);
+
+// Check if endpoint transferring is complete
+bool usbd_edpt_busy        (uint8_t rhport, uint8_t ep_addr);
+
 void usbd_edpt_stall(uint8_t rhport, uint8_t ep_addr);
 void usbd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr);
 bool usbd_edpt_stalled(uint8_t rhport, uint8_t ep_addr);