--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/g23m-aci/gdd_dio/gdd_sys.h	Fri Oct 16 06:25:50 2020 +0000
@@ -0,0 +1,148 @@
+/*  
++-----------------------------------------------------------------------------
+|  Project :  GSM-F&D (8411)
+|  Modul   :  gdd_sys.h
++-----------------------------------------------------------------------------
+|  Copyright 2005 Texas Instruments Berlin, AG
+|                 All rights reserved.
+|
+|                 This file is confidential and a trade secret of Texas
+|                 Instruments Berlin, AG
+|                 The receipt of or possession of this file does not convey
+|                 any rights to reproduce or disclose its contents or to
+|                 manufacture, use, or sell anything it may describe, in
+|                 whole, or in part, without the specific written consent of
+|                 Texas Instruments Berlin, AG.
++-----------------------------------------------------------------------------
+|  Purpose :  API for limited system functionality offered to application
+|             domain libraries.
++-----------------------------------------------------------------------------
+*/
+
+#ifndef GDD_SYS_H 
+#define GDD_SYS_H
+
+/*==== DEFINITIONS ==========================================================*/
+
+typedef int T_GDD_SEM;
+
+
+/*==== DYNAMIC MEMORY FUNCTIONS =============================================*/
+
+
+/*
++------------------------------------------------------------------------------
+| Function    : gdd_sys_mem_malloc
++------------------------------------------------------------------------------
+| Description : Allocate memory.
+|
+| Parameters  : size           - Size of memory required.
+|
+| Return      : Pointer to first byte of allocated memory.
+|               0 if allocation failed.
++------------------------------------------------------------------------------
+*/
+void * gdd_sys_mem_malloc(int size);
+
+
+/*
++------------------------------------------------------------------------------
+| Function    : gdd_sys_mem_free
++------------------------------------------------------------------------------
+| Description : Release memory which was previously allocated.
+|
+| Parameters  : p              - Pointer to memory to be deallocated
++------------------------------------------------------------------------------
+*/
+void gdd_sys_mem_free(void * p);
+
+
+/*==== SEMAPHORE FUNCTIONS ==================================================*/
+
+
+/*
++------------------------------------------------------------------------------
+| Function    : gdd_sys_sem_open
++------------------------------------------------------------------------------
+| Description : Opens a (counting) semaphore specified by its name. If the
+|               semaphore does not exist, it will be created with the initial
+|               count given. If the semaphore already exists the parameter count
+|               will be ignored.
+|
+| Parameters  : name              - Some name to identify the semaphore
+|               count             - initial count (e.g. 1 for a binary sem.)
+|
+| Return      : Returns handle to created semaphore, or -1 if an error occured.
++------------------------------------------------------------------------------
+*/
+T_GDD_SEM gdd_sys_sem_open(char * name, unsigned short count);
+
+
+/*
++------------------------------------------------------------------------------
+| Function    : gdd_sys_sem_close
++------------------------------------------------------------------------------
+| Description : Closes a semaphore
+|
+| Parameters  : sem               - handle of semaphore
+|
+| Return      : 0 = succees
+|               1 = error
++------------------------------------------------------------------------------
+*/
+int gdd_sys_sem_close(T_GDD_SEM sem);
+
+
+/*
++------------------------------------------------------------------------------
+| Function    : gdd_sys_sem_down
++------------------------------------------------------------------------------
+| Description : This functions obtains the specified semaphore, i.e.
+|               the counter is decremented, if it is greater than zero.
+|               If the counter is equal to zero, than the calling task is
+|               suspended until the counter is incremented by another task.
+|               If the caller is a non-task thread the function returns
+|               immediately regardless if the request can be satisfied or not.
+|               In this case, -1 is returned if the counter was already zero. 
+|
+| Parameters  : sem               - handle of semaphore
+|
+| Return      : 0 = succees
+|               1 = error
++------------------------------------------------------------------------------
+*/
+int gdd_sys_sem_down(T_GDD_SEM sem);
+
+
+/*
++------------------------------------------------------------------------------
+| Function    : gdd_sys_sem_down
++------------------------------------------------------------------------------
+| Description : Releases a semaphore, i.e. counter is incremented.
+|
+| Parameters  : sem               - handle of semaphore
+|
+| Return      : 0 = succees
+|               1 = error
++------------------------------------------------------------------------------
+*/
+int gdd_sys_sem_up(T_GDD_SEM sem);
+
+
+/*
++------------------------------------------------------------------------------
+| Function    : gdd_sys_sem_status
++------------------------------------------------------------------------------
+| Description : Query (obtain) the counter of a semaphore.
+|
+| Parameters  : sem               - handle of semaphore
+|               count             - output variable to pass back the counter
+|
+| Return      : 0 = succees
+|               1 = error
++------------------------------------------------------------------------------
+*/
+int gdd_sys_sem_status(T_GDD_SEM sem, /*out*/ unsigned short * count);
+
+
+#endif /* GDD_SYS_H */