1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * The full GNU General Public License is included in this distribution
21 * in the file called COPYING.
22 *
23 * Contact Information:
24 * Intel Linux Wireless <linuxwifi@intel.com>
25 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 *
27 * BSD LICENSE
28 *
29 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
30 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
31 * All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 *
37 * * Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * * Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in
41 * the documentation and/or other materials provided with the
42 * distribution.
43 * * Neither the name Intel Corporation nor the names of its
44 * contributors may be used to endorse or promote products derived
45 * from this software without specific prior written permission.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
48 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
49 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
50 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
51 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
52 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
53 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
54 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
55 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
56 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
57 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
58 *
59 *****************************************************************************/
60
61 #define MVM_DEBUGFS_READ_FILE_OPS(name) \
62 static const struct file_operations iwl_dbgfs_##name##_ops = { \
63 .read = iwl_dbgfs_##name##_read, \
64 .open = simple_open, \
65 .llseek = generic_file_llseek, \
66 }
67
68 #define MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype) \
69 static ssize_t _iwl_dbgfs_##name##_write(struct file *file, \
70 const char __user *user_buf, \
71 size_t count, loff_t *ppos) \
72 { \
73 argtype *arg = file->private_data; \
74 char buf[buflen] = {}; \
75 size_t buf_size = min(count, sizeof(buf) - 1); \
76 \
77 if (copy_from_user(buf, user_buf, buf_size)) \
78 return -EFAULT; \
79 \
80 return iwl_dbgfs_##name##_write(arg, buf, buf_size, ppos); \
81 } \
82
83 #define _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, buflen, argtype) \
84 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype) \
85 static const struct file_operations iwl_dbgfs_##name##_ops = { \
86 .write = _iwl_dbgfs_##name##_write, \
87 .read = iwl_dbgfs_##name##_read, \
88 .open = simple_open, \
89 .llseek = generic_file_llseek, \
90 };
91
92 #define _MVM_DEBUGFS_WRITE_FILE_OPS(name, buflen, argtype) \
93 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype) \
94 static const struct file_operations iwl_dbgfs_##name##_ops = { \
95 .write = _iwl_dbgfs_##name##_write, \
96 .open = simple_open, \
97 .llseek = generic_file_llseek, \
98 };