cpukit/libdrvmgr/drvmgr_translate_check.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /* Driver Manager Driver Translate Interface Implementation
0004  *
0005  * COPYRIGHT (c) 2010 Cobham Gaisler AB.
0006  *
0007  * Redistribution and use in source and binary forms, with or without
0008  * modification, are permitted provided that the following conditions
0009  * are met:
0010  * 1. Redistributions of source code must retain the above copyright
0011  *    notice, this list of conditions and the following disclaimer.
0012  * 2. Redistributions in binary form must reproduce the above copyright
0013  *    notice, this list of conditions and the following disclaimer in the
0014  *    documentation and/or other materials provided with the distribution.
0015  *
0016  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0017  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0018  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0019  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0020  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0021  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0022  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0023  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0024  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0025  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0026  * POSSIBILITY OF SUCH DAMAGE.
0027  */
0028
0029 #include <drvmgr/drvmgr.h>
0030
0031 #include <rtems/bspIo.h>
0032
0033 /* Calls drvmgr_translate() to translate an address range and check the result,
0034  * a printout is generated if the check fails. See paramters of
0035  * drvmgr_translate().
0036  * If size=0 only the starting address is not checked.
0037  */
0038 int drvmgr_translate_check(
0039     struct drvmgr_dev *dev,
0040     unsigned int options,
0041     void *src_address,
0042     void **dst_address,
0043     unsigned int size)
0044 {
0045     unsigned int max;
0046
0047     max = drvmgr_translate(dev, options, src_address, dst_address);
0048     if (max == 0 || (max < size && (size != 0))) {
0049         printk(" ### dev %p (%s) failed mapping %p\n",
0050             dev, dev->name ? dev->name : "unnamed", src_address);
0051         return -1;
0052     }
0053
0054     return 0;
0055 }