/*
Copyright (c) 2017, Texas Instruments Incorporated - http://www.ti.com/
All rights reserved.

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* modification, are permitted provided that the following conditions
* are met:
*
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* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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*/

/*
 *  ======== main.c ========
 */

#include <xdc/std.h>
#include <xdc/cfg/global.h>
#include <xdc/runtime/Log.h>
#include <xdc/runtime/System.h>
#include <ti/sysbios/BIOS.h>
#include <ti/ipc/Ipc.h>

#include "components/clk.h" /* PFP testing */
#include "pfp/pfp.h"
#include "pfp_app.h"        /* contains all PFP ID's */

extern void BOARD_initPerfCounters();
extern uint32_t readTime32(void);

/*
 *  ======== main ========
 */
Int main()
{ 
    Int status;
    Int k;
    //UInt32 tsStart, tsEnd, delta; // debug: check ARM SYS/BIOS timestamp provider
    
    Log_info0("Enter main()");

#if 0 // debug: check ARM SYS/BIOS timestamp provider
    BOARD_initPerfCounters();
#endif
    
    /* Setup Profile Points (PFP) */
    Log_info0("enter PFP Setup");
    pfpCreate();
    pfpCalibrate(1000, 1);
    for (k = 0; k <= PFP_ID_LAST; k++) 
    {
        pfpEnable(k);   /* Enable profile point #k */
    }
    for (k = 1; k <= PFP_ID_LAST; k++)
    {
        pfpSetAlpha(k, PFP_DEF_ALPHA);  /* Set default exp. avg. time const. */
    }
#if 0 // debug: dummy load
    for (k = 0; k < 1000; k++) 
    {
        tsStart=readTime32();
        pfpBegin(PFP_ID_MAIN,0);
        clkWorkDelay(CLK_WORKCNT_PER_MS);     /* This should take about 750,000 cycles to execute, or 750e3/600e6=1.25 msec. */
        pfpEnd(PFP_ID_MAIN,0);
        tsEnd=readTime32();
    }
    delta = tsEnd-tsStart;
#endif

    // Initialize IPC
    status = Ipc_start();
    if (status < 0) 
    {
        System_abort("Ipc_start failed\n");
    }

    BIOS_start();    /* does not return */
    return(0);
}