From d5d6217c5ea7ca8e0ac976a5e481e5ad38182f17 Mon Sep 17 00:00:00 2001
From: Martin Preuss <martin@aquamaniac.de>
Date: Fri, 14 Feb 2025 22:43:24 +0100
Subject: [PATCH] avr: added NET_Interface_AddOrReleaseOutMsg and
 NET_Interface_GetNumOfOutgoingMsgNums

---
 avr/modules/network/iface.asm | 37 +++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/avr/modules/network/iface.asm b/avr/modules/network/iface.asm
index e12fdf7..b45d45b 100644
--- a/avr/modules/network/iface.asm
+++ b/avr/modules/network/iface.asm
@@ -58,6 +58,28 @@ NET_Interface_AddOutgoingMsgNum:
 
 
 
+; ---------------------------------------------------------------------------
+; @routine NET_Interface_AddOrReleaseOutMsg @global
+;
+; Try to add given msg to the given interface's list of outbound messages,
+; if that fails release the given message (@ref NET_Buffer_ReleaseByNum)
+;
+; @return CFLAG on success, cleared on error
+; @param r16 byte to write
+; @param Y pointer to start of interface data
+; @clobbers R16, R17, R18, X
+
+NET_Interface_AddOrReleaseOutMsg:
+  rcall NET_Interface_AddOutgoingMsgNum     ; (R17, R18, X)
+  brcs NET_Interface_AddOrReleaseOutMsg_ret
+  rcall NET_Buffer_ReleaseByNum             ; (R16, X)
+  clc
+NET_Interface_AddOrReleaseOutMsg_ret:
+  ret
+; @end
+
+
+
 ; ---------------------------------------------------------------------------
 ; @routine NET_Interface_GetNextOutgoingMsgNum @global
 ;
@@ -98,6 +120,21 @@ NET_Interface_PeekNextOutgoingMsgNum:
 
 
 
+; ---------------------------------------------------------------------------
+; @routine NET_Interface_GetNumOfOutgoingMsgNums @global
+;
+; @return CFLAG on success, cleared on error
+; @return R16 byte read
+; @param Y pointer to start of interface data
+; @clobbers none
+
+NET_Interface_GetNumOfOutgoingMsgNums:
+  ldd r16, Y+(NET_IFACE_OFFS_OUTMSGRINGBUF+RINGBUFFERY_OFFS_USED)
+  ret
+; @end
+
+
+
 ; ---------------------------------------------------------------------------
 ; @routine NET_Interface_IncCounter16 @global
 ;