linux-arkmicro/buildroot-external/package/hx280enc/software/linux_reference/memalloc/testbench_memalloc.c

#include <sys/types.h>
#include <sys/mman.h>
#include <sys/ioctl.h>

#include <unistd.h>
#include <fcntl.h>

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

#include <getopt.h>
#include <assert.h>



#include "basetype.h"
#include "memalloc.h"



int main(void){

    i32 memdev_fd = -1;
    i32 memdev_fd_2 = -1;
    i32 memdev_map = -1;
    i32 i = 0, u=0;
    u32 * virtual1 = MAP_FAILED;
    u32 * virtual2 = MAP_FAILED;

    u32 pgsize = getpagesize();

    const char *memdev = "/tmp/dev/memalloc";
    const char *memmap ="/dev/mem";

    u32 bus_address1 = 0, bus_address2 = 0;
    u32 size = 4096;

    memdev_fd = open(memdev, O_RDWR);
    if(memdev_fd == -1)
    {
        printf("Failed to open dev: %s\n", memdev);
        goto end1;
    }

    memdev_fd_2 = open(memdev, O_RDWR);
    if(memdev_fd_2 == -1)
    {
        printf("Failed to open dev: %s\n", memdev);
        goto end1;
    }
    
    memdev_map = open(memmap, O_RDWR);
    if(memdev_map == -1)
    {
        printf("Failed to open dev: %s\n", memmap);
        goto end1;
    }

    size = (size + pgsize) & (~(pgsize - 1));

    printf("Hard reset\n", size);
    /*ioctl(memdev_fd, MEMALLOC_IOCHARDRESET, 0);*/

    for(i=0; i<100; i++){

        ioctl(memdev_fd, MEMALLOC_IOCXGETBUFFER, &bus_address1);
        printf("bus_address1 0x%08x\n", bus_address1);

        ioctl(memdev_fd_2, MEMALLOC_IOCXGETBUFFER, &bus_address2);
        printf("bus_address2 0x%08x\n", bus_address2);


        /* test write stuff in the mem are*/

        if(bus_address1){

            virtual1 =
                (u32 *) mmap(0, size, PROT_READ | PROT_WRITE,
                MAP_SHARED, memdev_map, bus_address1);

                printf("Virtual1 %08x\n", virtual1);

        }
        if(virtual1 != MAP_FAILED){
            for(u=0; u<size/4; u++){
                *virtual1 = i+1;
            }
        }else{
            printf("map failed\n");
        }


        /* test write stuff in the mem are*/

        if(bus_address2){

            virtual2 =
                (u32 *) mmap(0, size, PROT_READ | PROT_WRITE,
                MAP_SHARED, memdev_map, bus_address2);

                printf("Virtual2 0x%08x\n", virtual2);

        }
        if(virtual2 != MAP_FAILED){
            for(u=0; u<size/4; u++){
                *virtual2 = i+2;
            }
        }else{
            printf("map failed\n");
        }


        if(virtual1 != MAP_FAILED){
            for(u=0; u<size/4; u++){
                if(*virtual1 != i+1){
                    printf("MISMATCH1!\n");
                    break;
                }
            }
        }

        if(virtual2 != MAP_FAILED){
            for(u=0; u<size/4; u++){
                if(*virtual2 != i+2){
                    printf("MISMATCH2!\n");
                    break;
                }
            }
        }


        if((i%30)){
          printf("release %d ", size);
          ioctl(memdev_fd, MEMALLOC_IOCSFREEBUFFER, &bus_address1);
          printf("address:\t\t0x%08x\n", bus_address1);
	}
	
        printf("release %d ", size);
        /*ioctl(memdev_fd_2, MEMALLOC_IOCSFREEBUFFER, &bus_address2);
        printf("address:\t\t0x%08x\n", bus_address2);
        virtual1 = MAP_FAILED;
        virtual2 = MAP_FAILED;*/

        if(!(i%30)){
                close(memdev_fd);
                memdev_fd = open(memdev, O_RDWR);
                if(memdev_fd == -1)
                {
                    printf("Failed to open dev: %s\n", memdev);
                    goto end1;
                }

        } 
                close(memdev_fd_2);
                memdev_fd_2 = open(memdev, O_RDWR);
                if(memdev_fd_2 == -1)
                {
                    printf("Failed to open dev: %s\n", memdev);
                    goto end1;
                }

    }

end1:

    close(memdev_fd);
    close(memdev_fd_2);
    close(memdev_map);

return 0;
}