From 117985ec9a192e6111d911da90c61a1d1d4f713b Mon Sep 17 00:00:00 2001
From: Kalamatee <kalamatee@gmail.com>
Date: Sat, 31 Jan 2026 10:53:11 +0000
Subject: [PATCH] add definitions for CDC EEM/NCM hardware.

---
 compiler/include/hardware/cdc/cdc_eem.h | 10 +++++
 compiler/include/hardware/cdc/cdc_ncm.h | 53 +++++++++++++++++++++++++
 compiler/include/mmakefile.src          |  1 +
 3 files changed, 64 insertions(+)
 create mode 100644 compiler/include/hardware/cdc/cdc_eem.h
 create mode 100644 compiler/include/hardware/cdc/cdc_ncm.h

diff --git a/compiler/include/hardware/cdc/cdc_eem.h b/compiler/include/hardware/cdc/cdc_eem.h
new file mode 100644
index 0000000000..552ad526fc
--- /dev/null
+++ b/compiler/include/hardware/cdc/cdc_eem.h
@@ -0,0 +1,10 @@
+#ifndef HARDWARE_CDC_EEM_H
+#define HARDWARE_CDC_EEM_H
+
+#include <exec/types.h>
+
+#define CDC_EEM_HDR_TYPE_COMMAND 0x8000
+#define CDC_EEM_HDR_CRC          0x4000
+#define CDC_EEM_HDR_LEN_MASK     0x3fff
+
+#endif
diff --git a/compiler/include/hardware/cdc/cdc_ncm.h b/compiler/include/hardware/cdc/cdc_ncm.h
new file mode 100644
index 0000000000..af877b9b31
--- /dev/null
+++ b/compiler/include/hardware/cdc/cdc_ncm.h
@@ -0,0 +1,53 @@
+#ifndef HARDWARE_CDC_NCM_H
+#define HARDWARE_CDC_NCM_H
+
+#include <exec/types.h>
+
+#if defined(__GNUC__)
+# pragma pack(1)
+#endif
+
+#define CDC_NCM_FUNC_DESC_SUBTYPE    0x1a
+
+#define CDC_NCM_NTH16_SIGNATURE      0x484d434eUL /* "NCMH" */
+#define CDC_NCM_NDP16_SIGNATURE_NCM0 0x304d434eUL /* "NCM0" */
+#define CDC_NCM_NDP16_SIGNATURE_NCM1 0x314d434eUL /* "NCM1" */
+
+struct UsbCDCNcmFunctionalDesc
+{
+    UBYTE bFunctionLength;
+    UBYTE bDescriptorType;
+    UBYTE bDescriptorSubtype;
+    UWORD bcdNcmVersion;
+    UWORD wMaxSegmentSize;
+    UWORD wNumberMCFilters;
+    UBYTE bNumberPowerFilters;
+};
+
+struct UsbCDCNcmNtb16Header
+{
+    ULONG dwSignature;
+    UWORD wHeaderLength;
+    UWORD wSequence;
+    UWORD wBlockLength;
+    UWORD wNdpIndex;
+};
+
+struct UsbCDCNcmNdp16
+{
+    ULONG dwSignature;
+    UWORD wLength;
+    UWORD wNextNdpIndex;
+};
+
+struct UsbCDCNcmDatagramPointer16
+{
+    UWORD wDatagramIndex;
+    UWORD wDatagramLength;
+};
+
+#if defined(__GNUC__)
+# pragma pack()
+#endif
+
+#endif
diff --git a/compiler/include/mmakefile.src b/compiler/include/mmakefile.src
index 30b66b3e83..e45b3378c0 100644
--- a/compiler/include/mmakefile.src
+++ b/compiler/include/mmakefile.src
@@ -33,6 +33,7 @@ INCSUBDIRS :=	aros				\
 		gadgets				\
 		graphics			\
 		hardware			\
+		hardware/cdc			\
 		hardware/cpu			\
 		hardware/efi			\
 		hardware/pic			\