--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nuc-fw/nucleus/tmi.c	Sun Aug 11 07:17:25 2013 +0000
@@ -0,0 +1,234 @@
+/*************************************************************************/
+/*                                                                       */
+/*               Copyright Mentor Graphics Corporation 2002              */
+/*                         All Rights Reserved.                          */
+/*                                                                       */
+/* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS  */
+/* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS   */
+/* SUBJECT TO LICENSE TERMS.                                             */
+/*                                                                       */
+/*************************************************************************/
+
+/*************************************************************************/
+/*                                                                       */
+/* FILE NAME                                               VERSION       */
+/*                                                                       */
+/*      tmi.c                                          Nucleus PLUS 1.14 */
+/*                                                                       */
+/* COMPONENT                                                             */
+/*                                                                       */
+/*      TM - Timer Management                                            */
+/*                                                                       */
+/* DESCRIPTION                                                           */
+/*                                                                       */
+/*      This file contains the initialization routine for the timer      */
+/*      management component.                                            */
+/*                                                                       */
+/* DATA STRUCTURES                                                       */
+/*                                                                       */
+/*      None                                                             */
+/*                                                                       */
+/* FUNCTIONS                                                             */
+/*                                                                       */
+/*      TMI_Initialize                      Timer Management Initialize  */
+/*                                                                       */
+/* DEPENDENCIES                                                          */
+/*                                                                       */
+/*      tc_extr.h                           Task function interfaces     */
+/*      er_extr.h                           Error handling function      */
+/*      tm_defs.h                           Timer component constants    */
+/*                                                                       */
+/* HISTORY                                                               */
+/*                                                                       */
+/*         DATE                    REMARKS                               */
+/*                                                                       */
+/*      03-01-1993      Created initial version 1.0                      */
+/*      04-19-1993      Verified version 1.0                             */
+/*      08-09-1993      Removed timer task creation,                     */
+/*                        cleared the ID of the HISR                     */
+/*                        control block, and casted the                  */
+/*                        HISR priority, resulting in                    */
+/*                        version 1.0a                                   */
+/*      08-09-1993      Verified version 1.0a                            */
+/*      03-01-1994      Changed names of HISR create                     */
+/*                        function, removed reference to                 */
+/*                        timer list protect since it                    */
+/*                        was deleted, resulting in                      */
+/*                        version 1.1                                    */
+/*                                                                       */
+/*      03-18-1994      Verified version 1.1                             */
+/*      04-17-1996      updated to version 1.2                           */
+/*      03-24-1998      Released version 1.3                             */
+/*      03-26-1999      Released 1.11m (new release                      */
+/*                        numbering scheme)                              */
+/*      04-17-2002      Released version 1.13m                           */
+/*      11-07-2002      Released version 1.14                            */
+/*************************************************************************/
+#define         NU_SOURCE_FILE
+
+
+#include        "tc_extr.h"                 /* Task control functions    */
+#include        "er_extr.h"                 /* Error handling function   */
+#include        "tm_defs.h"                 /* Timer constants           */
+#include        "tm_extr.h"                 /* Timer interfaces          */
+
+
+/* Define external inner-component global data references.  */
+
+extern CS_NODE        *TMD_Created_Timers_List;
+extern UNSIGNED        TMD_Total_Timers;
+extern TM_TCB         *TMD_Active_Timers_List;
+extern INT             TMD_Active_List_Busy;
+extern TC_PROTECT      TMD_Created_List_Protect;
+extern UNSIGNED        TMD_System_Clock;
+extern UNSIGNED        TMD_Timer;
+extern INT             TMD_Timer_State;
+extern UNSIGNED        TMD_Time_Slice;
+extern TC_TCB         *TMD_Time_Slice_Task;
+extern INT             TMD_Time_Slice_State;
+extern TC_HCB          TMD_HISR;
+extern VOID           *TMD_HISR_Stack_Ptr;
+extern UNSIGNED        TMD_HISR_Stack_Size;
+extern INT             TMD_HISR_Priority;
+
+
+/* Define inner-component function prototypes.  */
+
+VOID    TMC_Timer_HISR(VOID);
+
+
+/*************************************************************************/
+/*                                                                       */
+/* FUNCTION                                                              */
+/*                                                                       */
+/*      TMI_Initialize                                                   */
+/*                                                                       */
+/* DESCRIPTION                                                           */
+/*                                                                       */
+/*      This function initializes the data structures that control the   */
+/*      operation of the timer component (TM).  There are no application */
+/*      timers created initially.  This routine must be called from      */
+/*      Supervisor mode in Supervisor/User mode switching kernels.       */
+/*                                                                       */
+/* CALLED BY                                                             */
+/*                                                                       */
+/*      INC_Initialize                      System initialization        */
+/*                                                                       */
+/* CALLS                                                                 */
+/*                                                                       */
+/*      ERC_System_Error                    System error handing function*/
+/*      TCC_Create_HISR                     Create timer HISR            */
+/*      TCCE_Create_HISR                    Create timer HISR (error chk)*/
+/*                                                                       */
+/* INPUTS                                                                */
+/*                                                                       */
+/*      (Indirect)                                                       */
+/*      TMD_HISR_Stack_Ptr                  Pointer to HISR stack area   */
+/*      TMD_HISR_Stack_Size                 Size of HISR stack           */
+/*      TMD_HISR_Priority                   Priority of timer HISR       */
+/*                                                                       */
+/* OUTPUTS                                                               */
+/*                                                                       */
+/*      TMD_Created_Timers_List             Pointer to the linked-list   */
+/*                                            of created application     */
+/*                                            timers                     */
+/*      TMD_Total_Timers                    Total number of created      */
+/*                                            application timers         */
+/*      TMD_Active_Timers_List              Pointer to the linked-list   */
+/*                                            of active timers.          */
+/*      TMD_Active_List_Busy                Flag indicating that the     */
+/*                                            active timer list is in use*/
+/*      TMD_Created_List_Protect            Created timer list protect   */
+/*                                            structure                  */
+/*      TMD_System_Clock                    System clock                 */
+/*      TMD_Timer                           Timer count-down value       */
+/*      TMD_Timer_State                     State of timer               */
+/*      TMD_Time_Slice                      Time slice count-down value  */
+/*      TMD_Time_Slice_Task                 Pointer to task to time-slice*/
+/*      TMD_Time_Slice_State                State of time slice          */
+/*      TMD_HISR                            Timer HISR control block     */
+/*                                                                       */
+/* HISTORY                                                               */
+/*                                                                       */
+/*         DATE                    REMARKS                               */
+/*                                                                       */
+/*      03-01-1993      Created initial version 1.0                      */
+/*      04-19-1993      Verified version 1.0                             */
+/*      08-09-1993      Removed timer task creation,                     */
+/*                        cleared the ID of the HISR                     */
+/*                        control block, and casted the                  */
+/*                        HISR priority, resulting in                    */
+/*                        version 1.0a                                   */
+/*      08-09-1993      Verified version 1.0a                            */
+/*      03-01-1994      Modified HISR create function                    */
+/*                        interface, removed reference                   */
+/*                        to timer list protect since it                 */
+/*                        was deleted, resulting in                      */
+/*                        version 1.1                                    */
+/*                                                                       */
+/*      03-18-1994      Verified version 1.1                             */
+/*                                                                       */
+/*************************************************************************/
+VOID  TMI_Initialize(VOID)
+{
+
+STATUS          status;                     /* Return status of creates */
+
+
+    /* Initialize the created application timer's list to NU_NULL.  */
+    TMD_Created_Timers_List =  NU_NULL;
+
+    /* Initialize the total number of created application timers to 0.  */
+    TMD_Total_Timers =  0;
+
+    /* Initialize the active timer's list to NU_NULL.  */
+    TMD_Active_Timers_List =  NU_NULL;
+
+    /* Clear the active timer list busy flag.  */
+    TMD_Active_List_Busy =  NU_FALSE;
+
+    /* Initialize the system clock to 0.  */
+    TMD_System_Clock =  0;
+
+    /* Initialize the timer to 0 and the timer state to "not active."  */
+    TMD_Timer =        0;
+    TMD_Timer_State =  TM_NOT_ACTIVE;
+
+    /* Initialize the time-slice timer, task pointer, and the associated
+       state variable.  */
+    TMD_Time_Slice =        0;
+    TMD_Time_Slice_Task =   NU_NULL;
+    TMD_Time_Slice_State =  TM_NOT_ACTIVE;
+
+    /* Initialize the list protection structures.  */
+    TMD_Created_List_Protect.tc_tcb_pointer =      NU_NULL;
+
+    /* Clear out the timer HISR control block.  */
+    TMD_HISR.tc_id =  0;
+
+    /* Create the timer HISR.  The timer HISR is responsible for performing
+       the time slice function and activating the timer task if necessary.  */
+#ifdef  NU_NO_ERROR_CHECKING
+
+    status =  TCC_Create_HISR((NU_HISR *) &TMD_HISR, "SYSTEM H",
+                    TMC_Timer_HISR, (OPTION) TMD_HISR_Priority,
+                    TMD_HISR_Stack_Ptr, TMD_HISR_Stack_Size);
+#else
+
+    status =  TCCE_Create_HISR((NU_HISR *) &TMD_HISR, "SYSTEM H",
+                    TMC_Timer_HISR, (OPTION) TMD_HISR_Priority,
+                    TMD_HISR_Stack_Ptr, TMD_HISR_Stack_Size);
+
+#endif
+
+    /* Check for a system error creating the timer HISR.  */
+    if (status != NU_SUCCESS)
+
+        /* Call the system error handler.  */
+        ERC_System_Error(NU_ERROR_CREATING_TIMER_HISR);
+}
+
+
+
+
+