source: mainline/uspace/drv/bus/usb/usbdiag/tests.c@ 6f3700d

/*
 * Copyright (c) 2017 Petr Manek
 * 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/** @addtogroup drvusbdiag
 * @{
 */
/**
 * @file
 * Code for executing diagnostic tests.
 */
#include <errno.h>
#include <str_error.h>
#include <usb/debug.h>
#include "tests.h"

#define NAME "usbdiag"


int usb_diag_stress_intr_out(usb_diag_dev_t *dev, int cycles, size_t size)
{
        if (!dev)
                return EBADMEM;

        char *buffer = (char *) malloc(size);
        if (!buffer)
                return ENOMEM;

        memset(buffer, 42, size);

        // TODO: Are we sure that no other test is running on this endpoint?

        usb_log_info("Performing interrupt out stress test on device %s.", ddf_fun_get_name(dev->fun));
        int rc = EOK;
        for (int i = 0; i < cycles; ++i) {
                // Write buffer to device.
                if ((rc = usb_pipe_write(dev->intr_out, buffer, size))) {
                        usb_log_error("Interrupt OUT write failed. %s\n", str_error(rc));
                        break;
                }
        }

        free(buffer);
        return rc;
}

int usb_diag_stress_intr_in(usb_diag_dev_t *dev, int cycles, size_t size)
{
        if (!dev)
                return EBADMEM;

        char *buffer = (char *) malloc(size);
        if (!buffer)
                return ENOMEM;

        // TODO: Are we sure that no other test is running on this endpoint?

        usb_log_info("Performing interrupt in stress test on device %s.", ddf_fun_get_name(dev->fun));
        int rc = EOK;
        for (int i = 0; i < cycles; ++i) {
                // Read device's response.
                size_t remaining = size;
                size_t transferred;

                while (remaining > 0) {
                        if ((rc = usb_pipe_read(dev->intr_in, buffer + size - remaining, remaining, &transferred))) {
                                usb_log_error("Interrupt IN read failed. %s\n", str_error(rc));
                                break;
                        }

                        if (transferred > remaining) {
                                usb_log_error("Interrupt IN read more than expected.\n");
                                rc = EINVAL;
                                break;
                        }

                        remaining -= transferred;
                }

                if (rc)
                        break;
        }

        free(buffer);
        return rc;
}

int usb_diag_stress_bulk_out(usb_diag_dev_t *dev, int cycles, size_t size)
{
        if (!dev)
                return EBADMEM;

        char *buffer = (char *) malloc(size);
        if (!buffer)
                return ENOMEM;

        memset(buffer, 42, size);

        // TODO: Are we sure that no other test is running on this endpoint?

        usb_log_info("Performing bulk out stress test on device %s.", ddf_fun_get_name(dev->fun));
        int rc = EOK;
        for (int i = 0; i < cycles; ++i) {
                // Write buffer to device.
                if ((rc = usb_pipe_write(dev->bulk_out, buffer, size))) {
                        usb_log_error("Bulk OUT write failed. %s\n", str_error(rc));
                        break;
                }
        }

        free(buffer);
        return rc;
}

int usb_diag_stress_bulk_in(usb_diag_dev_t *dev, int cycles, size_t size)
{
        if (!dev)
                return EBADMEM;

        char *buffer = (char *) malloc(size);
        if (!buffer)
                return ENOMEM;

        // TODO: Are we sure that no other test is running on this endpoint?

        usb_log_info("Performing bulk in stress test on device %s.", ddf_fun_get_name(dev->fun));
        int rc = EOK;
        for (int i = 0; i < cycles; ++i) {
                // Read device's response.
                size_t remaining = size;
                size_t transferred;

                while (remaining > 0) {
                        if ((rc = usb_pipe_read(dev->bulk_in, buffer + size - remaining, remaining, &transferred))) {
                                usb_log_error("Bulk IN read failed. %s\n", str_error(rc));
                                break;
                        }

                        if (transferred > remaining) {
                                usb_log_error("Bulk IN read more than expected.\n");
                                rc = EINVAL;
                                break;
                        }

                        remaining -= transferred;
                }

                if (rc)
                        break;
        }

        free(buffer);
        return rc;
}

/**
 * @}
 */