64ddtest

#include <stdio.h>
#include <malloc.h>
#include <string.h>
#include <stdint.h>
#include <libdragon.h>

static resolution_t res = RESOLUTION_320x240;
static bitdepth_t bit = DEPTH_32_BPP;

uint32_t io_read_abs(uint32_t pi_address)
{
    //replacement for io_read to not use cart space
    volatile uint32_t *uncached_address = (uint32_t *)pi_address;
    uint32_t retval = 0;

    disable_interrupts();

    /* Wait until there isn't a DMA transfer and grab a word */
    while (dma_busy()) ;
    MEMORY_BARRIER();
    retval = *uncached_address;
    MEMORY_BARRIER();

    enable_interrupts();

    return retval;
}

int detect64dd_ipl(void)
{
    //Look at 0x9FF00 from the IPL.
    uint32_t test = io_read_abs(0x0609FF00);

    //Check if the highest byte is 0xC3
    test &= 0xFF000000;
    if (test == 0xC3000000)
    return 1;   //if yes, then retail 64DD is present
    else
    return 0;   //if not, then there are no 64DD connected.
}

int main(void)
{
    /* enable interrupts (on the CPU) */
    init_interrupts();

    /* Initialize peripherals */
    display_init( res, bit, 2, GAMMA_NONE, ANTIALIAS_RESAMPLE );
    console_init();
    controller_init();

    console_set_render_mode(RENDER_MANUAL);

    //64DD IPL test
    int dd_present = detect64dd_ipl();

    /* Main loop test */
    while(1)
    {
        console_clear();

        /* To do initialize routines */
        controller_scan();

    printf("64dd_test by LuigiBlood\n\n");

    if(dd_present == 1)
        printf("Retail 64DD has been found (IPL)\n\n");
    else
        printf("Retail 64DD has NOT been found (IPL)\n\n");

        struct controller_data keys = get_keys_down();

        int controllers = get_controllers_present();

        printf( "Controller 1 %spresent\n", (controllers & CONTROLLER_1_INSERTED) ? "" : "not " );

        if( keys.c[0].A )
        {
            printf("YOU PRESSED A");
        }

        console_render();
    }
}