dummy_arm.c

/*
 * Copyright (C) 2010-2011 University of Texas at Austin
 *
 * Author: Dan Zhang <dan.zhang@mail.utexas.edu>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation
 * version 2.1 of the License.
 *
 * Copyright (C) 2009-2010 Felipe Contreras
 * Copyright (C) 2009-2010 Nokia Corporation
 * Copyright (C) 2009 Igalia S.L
 *
 * Author: Felipe Contreras <felipe.contreras@nokia.com>
 *
 * This file may be used under the terms of the GNU Lesser General Public
 * License version 2.1, a copy of which is found in LICENSE included in the
 * packaging of this file.
 */

#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <signal.h>
#include <stdio.h>

#include "dmm_buffer.h"
#include "dsp_bridge.h"
#include "log.h"
#include "dummy_dsp.h"
#include "dummy_arm.h"

#define BUFFER_SIZE_SINGLE_CH   FFT_SIZE

int main(int argc, const char *argv[])
{
    int i;
    struct dsp_node *node;
    struct dsp_msg msg, replyMsg;

    printf("Setting up dsp\n");
    node = setup_dsp();
    setup_dmm_buffers(node, MAX_SEND_SIZE, MAX_RECEIVE_SIZE);

    // Create the impulse function
    printf("Testing DSP FFT...\nInput\n");
    for(i = 0; i < BUFFER_SIZE_SINGLE_CH; i++)
    {
        if(i == 0)
            ((int16_t *) input_buffer->data)[2*i] = 1;
        else
            ((int16_t *) input_buffer->data)[2*i] = 0;
        ((int16_t *) input_buffer->data)[2*i+1]   = 0;

        if(i!=0 && i%8==0)
            printf("\n");
        printf("(%i + j%i) ", ((int16_t *) input_buffer->data)[2*i], ((int16_t *) input_buffer->data)[2*i+1]);
    }
    printf("\n");

    // Create/send the message to DSP
    msg.cmd = 1;
    msg.arg_1 = BUFFER_SIZE_SINGLE_CH;
    msg.arg_2 = 0; // Unused
    dsp_send(node, msg);

    // Receive the message from DSP
    while( !dsp_irecv(node, &replyMsg) );

    // Print the output
    printf("Done!\nOutput\n");
    for(i = 0; i < BUFFER_SIZE_SINGLE_CH; i++)
    {
        if(i!=0 && i%8==0)
            printf("\n");
        printf("(%f + j%f) ", ((int16_t *) output_buffer->data)[2*i]/((float) BUFFER_SIZE_SINGLE_CH*1.0f), ((int16_t *) output_buffer->data)[2*i+1]/((float) BUFFER_SIZE_SINGLE_CH*1.0f));
    }
    printf("\n");

    dsp_finish(node); // run at end of program
}