build: add the SIBO SDK

code/SIBOSDK/include/p_frame.h

@@ -0,0 +1,37 @@
+/*	HEADER - P_FRAME.H
+Copyright (C) Psion PLC 1991-92
+ VER    DATE   BY  DESCRIPTION
+===== ======== === ===========
+1.00F 26/04/90 NSM First relase
+1.10F 07/07/92 NSM Second release
+*/
+#ifndef P_FRAME_H
+#define P_FRAME_H
+
+#include <stdepoc.h>
+#include <p_crc.h>
+#include <p_llmac.h>
+
+typedef struct
+{
+/* Transmit stuff */
+P_CRC tcrc; /* the CRC for the transmitted data */ 
+unsigned char *pbuf; /* where to extract next byte from transmit buffer */ 
+unsigned char *pend; /* ptr to end of data in transmit buffer */ 
+unsigned char tcntl; /* the control byte to transmit */ 
+unsigned char tstat; /* current transmit frame state */ 
+/* receive stuff */
+unsigned short int rlen; /* current received frame length */ 
+unsigned char rstat; /* current receive frame state */ 
+unsigned char rtyp; /* current receive frame type */ 
+unsigned char rseq; /* current receive frame sequence */ 
+unsigned char rfull; /* TRUE if a complete data frame is in buffer */ 
+P_CRC rcrc; /* the CRC for the received data */ 
+P_FRAME dfrm; /* the internal data frame */ 
+short int numfrm; /* number of frames currently in supervisory Q */ 
+P_FRAME *prfin; /* entry pt to supervisory frame Q */ 
+P_FRAME *prfout; /* removal pt of supervisory frame Q */ 
+P_FRAME rfrm[MAXFRM]; /* supervisory frame Q */ 
+} P_FRMCB;
+
+#endif // P_FRAME_H