amxb_ba_register.c

Go to the documentation of this file.

/****************************************************************************
**
** SPDX-License-Identifier: BSD-2-Clause-Patent
**
** SPDX-FileCopyrightText: Copyright (c) 2023 SoftAtHome
**
** Redistribution and use in source and binary forms, with or without modification,
** are permitted provided that the following conditions are met:
**
** 1. Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer.
**
** 2. 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.
**
** Subject to the terms and conditions of this license, each copyright holder
** and contributor hereby grants to those receiving rights under this license
** a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable
** (except for failure to satisfy the conditions of this license) patent license
** to make, have made, use, offer to sell, sell, import, and otherwise transfer
** this software, where such license applies only to those patent claims, already
** acquired or hereafter acquired, licensable by such copyright holder or contributor
** that are necessarily infringed by:
**
** (a) their Contribution(s) (the licensed copyrights of copyright holders and
** non-copyrightable additions of contributors, in source or binary form) alone;
** or
**
** (b) combination of their Contribution(s) with the work of authorship to which
** such Contribution(s) was added by such copyright holder or contributor, if,
** at the time the Contribution is added, such addition causes such combination
** to be necessarily infringed. The patent license shall not apply to any other
** combinations which include the Contribution.
**
** Except as expressly stated above, no rights or licenses from any copyright
** holder or contributor is granted under this license, whether expressly, by
** implication, estoppel or otherwise.
**
** DISCLAIMER
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDERS OR CONTRIBUTORS 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.
**
****************************************************************************/
 
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
 
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
 
#include <amxc/amxc.h>
#include <amxp/amxp.h>
 
#include <amxd/amxd_dm.h>
 
#include <amxb/amxb_be_intf.h>
#include <amxb/amxb_register.h>
#include <amxb/amxb.h>
 
#include "amxb_priv.h"
 
int amxb_register(amxb_bus_ctx_t* const ctx,
                  amxd_dm_t* const dm) {
    int retval = -1;
    const amxb_be_funcs_t* fns = NULL;
 
    when_null(ctx, exit);
    when_null(ctx->bus_ctx, exit);
    when_not_null(ctx->dm, exit);
    when_null(dm, exit);
 
    fns = ctx->bus_fn;
    if(amxb_is_valid_be_func(fns, register_dm, fns->register_dm)) {
        retval = fns->register_dm(ctx->bus_ctx, dm);
    } else {
        retval = AMXB_ERROR_NOT_SUPPORTED_OP;
    }
 
    if(retval == 0) {
        ctx->dm = dm;
    }
 
exit:
    return retval;
}