HelenOS sources

root/uspace/drv/platform/ski/ski.c

DEFINITIONS

1. ski_add_fun
2. ski_add_functions
3. ski_dev_add
4. main

/*
 * Copyright (c) 2017 Jiri Svoboda
 * 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 ski ski
 * @{
 */

/** @file
 */

#include <assert.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>

#include <ddf/driver.h>
#include <ddf/log.h>

#define NAME "ski"

static errno_t ski_dev_add(ddf_dev_t *dev);

static driver_ops_t ski_ops = {
        .dev_add = &ski_dev_add
};

static driver_t ski_driver = {
        .name = NAME,
        .driver_ops = &ski_ops
};

static errno_t ski_add_fun(ddf_dev_t *dev, const char *name, const char *str_match_id)
{
        ddf_msg(LVL_NOTE, "Adding function '%s'.", name);

        ddf_fun_t *fnode = NULL;
        errno_t rc;

        /* Create new device. */
        fnode = ddf_fun_create(dev, fun_inner, name);
        if (fnode == NULL) {
                ddf_msg(LVL_ERROR, "Error creating function '%s'", name);
                rc = ENOMEM;
                goto error;
        }

        /* Add match ID */
        rc = ddf_fun_add_match_id(fnode, str_match_id, 100);
        if (rc != EOK) {
                ddf_msg(LVL_ERROR, "Error adding match ID");
                goto error;
        }

        /* Register function. */
        if (ddf_fun_bind(fnode) != EOK) {
                ddf_msg(LVL_ERROR, "Failed binding function %s.", name);
                goto error;
        }

        return EOK;

error:
        if (fnode != NULL)
                ddf_fun_destroy(fnode);

        return rc;
}

static errno_t ski_add_functions(ddf_dev_t *dev)
{
        errno_t rc;

        rc = ski_add_fun(dev, "console", "ski/console");
        if (rc != EOK)
                return rc;

        return EOK;
}

/** Add device. */
static errno_t ski_dev_add(ddf_dev_t *dev)
{
        ddf_msg(LVL_NOTE, "ski_dev_add, device handle = %d",
            (int)ddf_dev_get_handle(dev));

        /* Register functions. */
        if (ski_add_functions(dev)) {
                ddf_msg(LVL_ERROR, "Failed to add functions for ski platform.");
        }

        return EOK;
}

int main(int argc, char *argv[])
{
        errno_t rc;

        printf(NAME ": Ski platform driver\n");

        rc = ddf_log_init(NAME);
        if (rc != EOK) {
                printf(NAME ": Failed initializing logging service");
                return 1;
        }

        return ddf_driver_main(&ski_driver);
}

/**
 * @}
 */