testcases/kernel/device-drivers/pci/user_tpci/user_tpci.c

#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <linux/kernel.h>
#include "user_tpci.h"
#include "../tpci/tpci.h"

static int tpci_fd = -1;	/* file descriptor */

int
tpciopen() {
	struct stat	st;

	if (stat("/dev/tpci", &st)) {
		printf("\tERROR, Failed finding test pci kernel interface \n");
		return (1);
	}

	if ((tpci_fd = open("/dev/tpci", O_RDWR)) < 0) {
		printf("\tFailed opening test pci kernel interface \n");
		return (1);
	}
	
	return 0;
}

int 
tpciclose() {

	if (tpci_fd != -1) {
		close (tpci_fd);
		tpci_fd = -1;
	}

	return 0;
}

int main() {
	int rc;

	rc = tpciopen();
	if (rc ) {
		printf("Test PCI Driver may not be loaded\n");
		exit(1);
	}


	/* test find pci */
	if(ki_generic(tpci_fd, PCI_PROBE)) {
		printf("Failed to find a pci device\n");
		exit(1);
	}
	else
		printf("Success probing for pci device\n");

	/* test disable device */
	if(ki_generic(tpci_fd, PCI_DISABLE))
		printf("Failed to disable device \nMay still be in use by system\n");
	else
		printf("Disabled device\n");

	/* test enable device */
	if(ki_generic(tpci_fd, PCI_ENABLE))
		printf("Failed to enable device\n");
	else
		printf("Enabled device\n");

	/* test find from bus */
	if(ki_generic(tpci_fd, FIND_BUS))
                printf("Failed to find from bus pointer\n");
        else
                printf("Found device from bus pointer\n");
	
	/* test find from device */
	if(ki_generic(tpci_fd, FIND_DEVICE))
                printf("Failed to find device from device info\n");
        else
                printf("Found device from device info\n");

	/* test find from class */
	if(ki_generic(tpci_fd, FIND_CLASS))
                printf("Failed to find device from class\n");
        else
                printf("Found device from class \n");	

	/* test find subsys */
	if(ki_generic(tpci_fd, FIND_SUBSYS))
                printf("Failed to find device from subsys info\n");
        else
                printf("Found device from subsys info\n");
	
	/* test scan bus */
	if(ki_generic(tpci_fd, BUS_SCAN))
                printf("Failed on bus scan call\n");
        else
                printf("Success scanning bus\n");

	/* test scan slot */
	if(ki_generic(tpci_fd, SLOT_SCAN))
                printf("Failed on scan slot \n");
        else
                printf("Success scan slot\n");

	/* test enable bridges */
	if(ki_generic(tpci_fd, ENABLE_BRIDGES))
                printf("Failed to enable bridges\n");
        else
                printf("Enabled bridges\n");

	/* test bus add devices */
	if(ki_generic(tpci_fd, BUS_ADD_DEVICES))
                printf("Failed on bus add devices call\n");
        else
                printf("Success bus add devices\n");

	/* test match device */
	if(ki_generic(tpci_fd, MATCH_DEVICE))
		printf("Failed on match device call\n");
	else
		printf("Success match device\n");

#if 0
	/* test unregister driver */
	if(ki_generic(tpci_fd, UNREG_DRIVER))
                printf("Failed to unregister driver\n");
        else
                printf("Unregistered driver\n");
#endif

	/* test register driver */
	if(ki_generic(tpci_fd, REG_DRIVER))
                printf("Failed to register driver\n");
        else
                printf("Registerd driver\n");

	/* test pci resources */
	if(ki_generic(tpci_fd, PCI_RESOURCES))
                printf("Failed on pci_resources call\n");
        else
                printf("Success pci resources\n");

	/* test save state */
	if(ki_generic(tpci_fd, SAVE_STATE))
		printf("Failed to save state of device\n");
	else
		printf("Saved state of device\n");

	/* test restore state */
	if(ki_generic(tpci_fd, RESTORE_STATE))
		printf("Failed to restore state\n");
	else
		printf("Restored state\n");

	/* test max bus */
        if(ki_generic(tpci_fd, TEST_MAX_BUS))
                printf("Failed on max bus call\n");
        else
                printf("Success max bus \n");
	
	if(ki_generic(tpci_fd, FIND_CAP))
		printf("Does not have tested capability\n");
	else
		printf("Device has tested capability\n");

	
	rc = tpciclose();
	if (rc ) {
                printf("Test PCI Driver may not be closed\n");
                exit(1);
        }	

	return 0;
}