--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gsm-fw/bsp/timer.c	Tue Nov 12 05:35:48 2013 +0000
@@ -0,0 +1,267 @@
+/*******************************************************************************
+            TEXAS INSTRUMENTS INCORPORATED PROPRIETARY INFORMATION           
+                                                                             
+   Property of Texas Instruments -- For  Unrestricted  Internal  Use  Only 
+   Unauthorized reproduction and/or distribution is strictly prohibited.  This 
+   product  is  protected  under  copyright  law  and  trade  secret law as an 
+   unpublished work.  Created 1987, (C) Copyright 1997 Texas Instruments.  All 
+   rights reserved.                                                            
+                  
+                                                           
+   Filename         : timer.c
+
+   Description      : timer.c
+
+   Project          : drivers
+
+   Author           : pmonteil@tif.ti.com  Patrice Monteil.
+
+   Version number   : 1.3
+
+   Date and time    : 07/23/98 16:25:32
+   Previous delta   : 07/23/98 16:25:32
+
+   SCCS file        : /db/gsm_asp/db_ht96/dsp_0/gsw/rel_0/mcu_l1/release1.5/mod/emu/EMU_MCMP/eva3_drivers/source/SCCS/s.timer.c
+
+   Sccs Id  (SID)       : '@(#) timer.c 1.3 07/23/98 16:25:32 '
+
+ 
+*****************************************************************************/
+
+#include "../include/sys_types.h"
+
+#include "mem.h"
+#include "iq.h"
+#include "timer.h"
+
+
+/*--------------------------------------------------------------
+ *  TIMER_Read()
+ *--------------------------------------------------------------
+ * Parameters :	num of the register to be read
+ * Return     :value of the timer register read
+ * Functionality :  read one of the TIMER register
+ *--------------------------------------------------------------*/
+SYS_UWORD16 TIMER_Read (unsigned short regNum)
+{
+   SYS_UWORD16 timerReg;
+
+   switch (regNum) {
+   case 0:
+      timerReg = ( * (volatile SYS_UWORD16 *) TIMER_CNTL_REG) & TIMER_CNTL_MASK;
+      break;
+   case 1:
+      timerReg = *(volatile SYS_UWORD16 *) TIMER_READ_REG;
+      break;
+   case 2:
+      timerReg = ( * (volatile SYS_UWORD16 *) TIMER_MODE_REG) & TIMER_MODE_MASK;
+      break;
+   default:
+       break;
+   }
+   return(timerReg);
+}
+/*--------------------------------------------------------------
+ *  TM_ResetTimer()
+ *--------------------------------------------------------------
+ * Parameters : timer number (1 or 2) 
+ *              timer value, reload yes or not, scale
+ * Return     : none
+ * Functionality : Give the timewr state
+ *--------------------------------------------------------------*/
+void  TM_ResetTimer (SYS_UWORD16 timerNum,  SYS_UWORD16 countValue, 
+                     SYS_UWORD16 autoReload, SYS_UWORD16 clockScale)
+{
+     volatile SYS_UWORD16 *cntl;
+    
+    if (timerNum == 1) 
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL; 
+
+        *cntl &= ~(START_STOP | PTV);        /* stop and reset values */
+
+        (autoReload) ? (*cntl |= AR) : (*cntl &= ~AR);
+
+        *cntl |= (clockScale << 2 );
+
+        /*load the value */
+        *(volatile SYS_UWORD16 *) TIMER1_LOAD_TIM = countValue;
+
+        *cntl |= START_STOP;    
+    }
+    else 
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL; 
+
+        *cntl &= ~(START_STOP | PTV);        /* stop and reset values */
+
+        (autoReload) ? (*cntl |= AR) : (*cntl &= ~AR);
+
+        *cntl |= (clockScale << 2 );
+         
+        /*load the value */
+        *(volatile SYS_UWORD16 *) TIMER2_LOAD_TIM = countValue;
+
+        *cntl |= START_STOP;    
+    }
+}
+
+/*
+ *  TM_StopTimer
+ *
+ * Parameters : timer number (1 or 2)
+ */
+void   TM_StopTimer (int timerNum)
+{
+    volatile SYS_UWORD16 *cntl;
+
+    if (timerNum == 1) 
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL;
+    }
+    else
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL;
+    }
+    *cntl &= ~START_STOP;
+}   
+
+/*
+ * TM_ReadTimer
+ *
+ * Returns current timer value
+ *
+ * Parameters : timer number (1 or 2)
+ *
+ */
+SYS_UWORD16 TM_ReadTimer (int timerNum)
+{
+    if (timerNum == 1) 
+    {
+        return (* (SYS_UWORD16 *) TIMER1_READ_TIM);
+    }
+    else
+    {
+        return (* (SYS_UWORD16 *) TIMER2_READ_TIM);
+    }
+}   
+
+
+/*
+ * TM_StartTimer
+ *
+ * Parameters : timer number (1 or 2)
+ *
+ */
+void TM_StartTimer (int timerNum)
+{
+    volatile SYS_UWORD16 *cntl;
+    
+    if (timerNum == 1) 
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL;
+    }
+    else
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL;
+    }
+    *cntl |= START_STOP;
+}   
+
+void TM_DisableWatchdog (void)
+{
+   /* volatile variable needed due C to optimization */
+   volatile SYS_UWORD16 *reg = (volatile SYS_UWORD16 *) TIMER_MODE_REG;
+
+   *reg = 0xf5;                
+   *reg = 0xa0;
+}
+
+
+ /*
+ * TM_EnableWatchdog
+ * 
+ */
+void TM_EnableWatchdog(void)
+{
+    * ((volatile SYS_UWORD16 *) TIMER_MODE_REG) = TIMER_WDOG;
+}
+
+/*
+ * TM_ResetWatchdog
+ * 
+ * Parameter : Tick count 
+ * Use a different value each time, otherwise watchdog bites 
+ */
+void TM_ResetWatchdog(SYS_UWORD16 count)
+{
+  * ((volatile SYS_UWORD16 *) TIMER_LOAD_REG) = count;
+}
+
+/*
+* TM_EnableTimer (int TimerNum)
+* 
+* Parameter : TimerNum : timer to enable (timer1 or timer2)
+*
+*/
+void TM_EnableTimer (int TimerNum)
+{
+     volatile SYS_UWORD16 *cntl;
+    
+    if (TimerNum == 1) 
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL;
+    }
+    else
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL;
+    }
+    *cntl |= TIMER_CLK_EN;
+}
+
+/*
+* TM_DisableTimer (int TimerNum)
+* 
+* Parameter : TimerNum : timer to enable (timer1 or timer2)
+*
+*/
+void TM_DisableTimer (int TimerNum)
+{
+     volatile SYS_UWORD16 *cntl;
+    
+    if (TimerNum == 1) 
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL;
+    }
+    else
+    {
+        cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL;
+    }
+    *cntl &= ~TIMER_CLK_EN;
+}
+
+/*--------------------------------------------------------------
+ *  TIMER_ReadValue()
+ *--------------------------------------------------------------
+ * Parameters : none
+ * Return     :	none
+ * Functionality :  Read timer value
+ *--------------------------------------------------------------*/
+
+unsigned short TIMER_ReadValue (void)
+{
+  return(* (SYS_UWORD16 *) TIMER_READ_REG);
+}
+
+/*--------------------------------------------------------------
+ *  TIMER_WriteValue()
+ *--------------------------------------------------------------
+ * Parameters : none
+ * Return     :	none
+ * Functionality :  Write timer value
+ *--------------------------------------------------------------*/
+
+void TIMER_WriteValue (SYS_UWORD16 value)
+{
+  * (SYS_UWORD16 *) TIMER_LOAD_REG = value;	/*load the value */
+}