RTOS/TCI6638K2K: GateMP

/*
 *   rm_shared_test.c
 *
 *   Multicore Resource Manager test that uses the RM shared server to
 *   request resources from multiple cores.
 *
 *  ============================================================================
 *
 * Copyright (c) 2012-2013, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    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 LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

/* Standard Includes */
#include <string.h>

/* XDC Includes */
#include <xdc/std.h>
#include <xdc/runtime/System.h>

/* IPC Includes */
#include <ti/ipc/MultiProc.h>
#include <ti/ipc/Ipc.h>
#include <ti/ipc/GateMP.h>

/* BIOS Includes */
#include <ti/sysbios/BIOS.h>
#include <ti/sysbios/knl/Task.h>

/* CSL Includes */
#include <ti/csl/csl_chip.h>

/**********************************************************************
 ********************** RM Shared Test Symbols ************************
 **********************************************************************/

#define SYSINIT                      0
#define NUM_CORES                    2

/* GateMP names used to synchronize the RM test tasks */
#define RM_SERVER_GATE_NAME          "rmServerGate"
#define RM_CLIENT_GATE_NAME          "rmClientGate"


/**********************************************************************
 ********************** Global Variables ******************************
 **********************************************************************/

/* DSP core number according to DNUM */
uint16_t            coreNum;

/* Task to configure application transport code for RM */
Task_Handle         rmStartupTskHandle;

/* GateMPs used to synchronize tests between the two RM test tasks */
GateMP_Handle       serverGate = NULL;
GateMP_Handle       clientGate = NULL;
/* GateMP keys */
IArg                serverKey;
IArg                clientKey;


void rmStartupTsk(UArg arg0, UArg arg1)
{
    Int           status;
    GateMP_Params gateParams;
    int           cnt = 10;

    if (coreNum == SYSINIT) {
        GateMP_Params_init(&gateParams);
        gateParams.name = RM_SERVER_GATE_NAME;
        /* Disable local protection since only concerned with sync'ing cores */
        gateParams.localProtect = GateMP_LocalProtect_NONE;
        serverGate = GateMP_create(&gateParams);
        System_printf("Core %d: Gate RM_SERVER_GATE_NAME opened\n", coreNum);

        serverKey = GateMP_enter(serverGate);

        do {
            if (cnt == 10) {
               System_printf("Core %d: Wait for RM_CLIENT_GATE_NAME\n", coreNum);
               cnt = 10;
            }
            else {
               cnt++;
            }

            status = GateMP_open(RM_CLIENT_GATE_NAME, &clientGate);
            /*
             *  Sleep for 1 clock tick to avoid inundating remote processor
             *  with interrupts if open failed
             */
            if (status < 0) {
                Task_sleep(1);
            }
        } while (status < 0);
        System_printf("Core %d: Gate RM_CLIENT_GATE_NAME opened\n", coreNum);
    }
    else {
        Task_sleep(100);
        GateMP_Params_init(&gateParams);
        gateParams.name = RM_CLIENT_GATE_NAME;
        /* Disable local protection since only concerned with sync'ing cores */
        gateParams.localProtect = GateMP_LocalProtect_NONE;
        clientGate = GateMP_create(&gateParams);
        System_printf("Core %d: Gate RM_CLIENT_GATE_NAME opened\n", coreNum);

        clientKey = GateMP_enter(clientGate);
        do {
            if (cnt == 10) {
               System_printf("Core %d: Wait for RM_SERVER_GATE_NAME\n", coreNum);
               cnt = 10;
            }
            else {
               cnt++;
            }
            status = GateMP_open(RM_SERVER_GATE_NAME, &serverGate);
            /*
             *  Sleep for 1 clock tick to avoid inundating remote processor
             *  with interrupts if open failed
             */
            if (status < 0) {
                Task_sleep(1);
            }
        } while (status < 0);
        System_printf("Core %d: Gate RM_SERVER_GATE_NAME opened\n", coreNum);
    }

}

int main(Int argc, Char* argv[])
{
    Task_Params   taskParams;
    int           status;
    int           count = 0;

    System_printf ("*********************************************************\n");
    System_printf ("***************** RM Shared Server Test *****************\n");
    System_printf ("*********************************************************\n");

    coreNum = CSL_chipReadReg(CSL_CHIP_DNUM);

    System_printf ("Core %d: ProcID %d\n", coreNum, MultiProc_self());
    /* Initialize the heap in shared memory. Using IPC module to do that */
#if 0
    System_printf("Core %d: Starting IPC...\n", coreNum);
    status = Ipc_start();
    if (status < 0) {
        System_abort("Ipc_start failed\n");
    }
#endif
    if (coreNum == SYSINIT) {
      do {
        count++;
        status = Ipc_attach(MultiProc_getId("CORE1"));
      } while (status == Ipc_E_NOTREADY);
      System_printf ("Core %d: Wait for IPC attach count = %d\n", coreNum, count);
    }
    else {
      do {
        count++;
        status = Ipc_attach(MultiProc_getId("CORE0"));
      } while (status == Ipc_E_NOTREADY);
      System_printf ("Core %d: Wait for IPC attach count = %d\n", coreNum, count);
    }

    /* Create the RM startup task */
    System_printf("Core %d : Creating RM startup task...\n", coreNum);
    Task_Params_init (&taskParams);
    rmStartupTskHandle = Task_create (rmStartupTsk, &taskParams, NULL);

    System_printf("Core %d : Starting BIOS...\n", coreNum);
    BIOS_start();

    return (0);
}