From 1138f8cc704e09af3335e253e5f244fde90d982f Mon Sep 17 00:00:00 2001
From: Jeremiah McCarthy <jeremiahmccarthy@xmos.com>
Date: Fri, 26 Mar 2021 15:30:43 -0400
Subject: Add DFU Class per Version 1.1 Spec

---
 src/device/usbd.c         |  8 ++++----
 src/device/usbd.h         | 15 +++++++++++++--
 src/device/usbd_control.c |  2 +-
 3 files changed, 18 insertions(+), 7 deletions(-)

(limited to 'src/device')

diff --git a/src/device/usbd.c b/src/device/usbd.c
index 4fc221888..28c9acdd2 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -182,7 +182,7 @@ static usbd_class_driver_t const _usbd_driver[] =
     .reset            = dfu_rtd_reset,
     .open             = dfu_rtd_open,
     .control_xfer_cb  = dfu_rtd_control_xfer_cb,
-    .xfer_cb          = dfu_rtd_xfer_cb,
+    .xfer_cb          = NULL,
     .sof              = NULL
   },
   #endif
@@ -1270,9 +1270,9 @@ bool usbd_edpt_stalled(uint8_t rhport, uint8_t ep_addr)
 
 /**
  * usbd_edpt_close will disable an endpoint.
- * 
+ *
  * In progress transfers on this EP may be delivered after this call.
- * 
+ *
  */
 void usbd_edpt_close(uint8_t rhport, uint8_t ep_addr)
 {
diff --git a/src/device/usbd.h b/src/device/usbd.h
index b5f7dceba..f9700811f 100644
--- a/src/device/usbd.h
+++ b/src/device/usbd.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -529,7 +529,7 @@ TU_ATTR_WEAK bool tud_vendor_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb
 
 //------------- DFU Runtime -------------//
 #define TUD_DFU_APP_CLASS    (TUSB_CLASS_APPLICATION_SPECIFIC)
-#define TUD_DFU_APP_SUBCLASS 0x01u
+#define TUD_DFU_APP_SUBCLASS (APP_SUBCLASS_DFU_RUNTIME)
 
 // Length of template descriptr: 18 bytes
 #define TUD_DFU_RT_DESC_LEN (9 + 9)
@@ -542,6 +542,17 @@ TU_ATTR_WEAK bool tud_vendor_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb
   /* Function */ \
   9, DFU_DESC_FUNCTIONAL, _attr, U16_TO_U8S_LE(_timeout), U16_TO_U8S_LE(_xfer_size), U16_TO_U8S_LE(0x0101)
 
+// Length of template descriptr: 18 bytes
+#define TUD_DFU_MODE_DESC_LEN (9 + 9)
+
+// DFU runtime descriptor
+// Interface number, string index, alternate setting, attributes, detach timeout, transfer size
+#define TUD_DFU_MODE_DESCRIPTOR(_itfnum, _stridx, _alt_setting, _attr, _timeout, _xfer_size) \
+  /* Interface */ \
+  9, TUSB_DESC_INTERFACE, _itfnum, _alt_setting, 0, TUD_DFU_APP_CLASS, TUD_DFU_APP_SUBCLASS, DFU_PROTOCOL_DFU, _stridx, \
+  /* Function */ \
+  9, DFU_DESC_FUNCTIONAL, _attr, U16_TO_U8S_LE(_timeout), U16_TO_U8S_LE(_xfer_size), U16_TO_U8S_LE(0x0101)
+
 
 //------------- CDC-ECM -------------//
 
diff --git a/src/device/usbd_control.c b/src/device/usbd_control.c
index d15380199..724c652e6 100644
--- a/src/device/usbd_control.c
+++ b/src/device/usbd_control.c
@@ -107,7 +107,7 @@ bool tud_control_xfer(uint8_t rhport, tusb_control_request_t const * request, vo
   _ctrl_xfer.buffer        = (uint8_t*) buffer;
   _ctrl_xfer.total_xferred = 0U;
   _ctrl_xfer.data_len      = tu_min16(len, request->wLength);
-  
+
   if (request->wLength > 0U)
   {
     if(_ctrl_xfer.data_len > 0U)
-- 
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