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 }; 99