138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/*
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* iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
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* drivers/misc/iwmc3200top/debufs.c
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*
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* Copyright (C) 2009 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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* 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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*
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* Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
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* -
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*
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/ctype.h>
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#include <linux/mmc/sdio_func.h>
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#include <linux/mmc/sdio.h>
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#include <linux/debugfs.h>
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#include "iwmc3200top.h"
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#include "fw-msg.h"
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#include "log.h"
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#include "debugfs.h"
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/* Constants definition */
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#define HEXADECIMAL_RADIX 16
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/* Functions definition */
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#define DEBUGFS_ADD(name, parent) do { \
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dbgfs->dbgfs_##parent##_files.file_##name = \
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debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv, \
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&iwmct_dbgfs_##name##_ops); \
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} while (0)
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#define DEBUGFS_RM(name) do { \
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debugfs_remove(name); \
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name = NULL; \
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} while (0)
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#define DEBUGFS_READ_FUNC(name) \
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ssize_t iwmct_dbgfs_##name##_read(struct file *file, \
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char __user *user_buf, \
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size_t count, loff_t *ppos);
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#define DEBUGFS_WRITE_FUNC(name) \
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ssize_t iwmct_dbgfs_##name##_write(struct file *file, \
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const char __user *user_buf, \
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size_t count, loff_t *ppos);
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#define DEBUGFS_READ_FILE_OPS(name) \
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DEBUGFS_READ_FUNC(name) \
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static const struct file_operations iwmct_dbgfs_##name##_ops = { \
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.read = iwmct_dbgfs_##name##_read, \
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.open = iwmct_dbgfs_open_file_generic, \
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.llseek = generic_file_llseek, \
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};
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#define DEBUGFS_WRITE_FILE_OPS(name) \
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DEBUGFS_WRITE_FUNC(name) \
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static const struct file_operations iwmct_dbgfs_##name##_ops = { \
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.write = iwmct_dbgfs_##name##_write, \
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.open = iwmct_dbgfs_open_file_generic, \
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.llseek = generic_file_llseek, \
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};
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#define DEBUGFS_READ_WRITE_FILE_OPS(name) \
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DEBUGFS_READ_FUNC(name) \
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DEBUGFS_WRITE_FUNC(name) \
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static const struct file_operations iwmct_dbgfs_##name##_ops = {\
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.write = iwmct_dbgfs_##name##_write, \
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.read = iwmct_dbgfs_##name##_read, \
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.open = iwmct_dbgfs_open_file_generic, \
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.llseek = generic_file_llseek, \
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};
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/* Debugfs file ops definitions */
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/*
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* Create the debugfs files and directories
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*
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*/
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void iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name)
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{
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struct iwmct_debugfs *dbgfs;
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dbgfs = kzalloc(sizeof(struct iwmct_debugfs), GFP_KERNEL);
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if (!dbgfs) {
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LOG_ERROR(priv, DEBUGFS, "failed to allocate %zd bytes\n",
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sizeof(struct iwmct_debugfs));
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return;
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}
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priv->dbgfs = dbgfs;
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dbgfs->name = name;
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dbgfs->dir_drv = debugfs_create_dir(name, NULL);
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if (!dbgfs->dir_drv) {
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LOG_ERROR(priv, DEBUGFS, "failed to create debugfs dir\n");
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return;
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}
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return;
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}
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/**
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* Remove the debugfs files and directories
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*
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*/
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void iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs)
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{
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if (!dbgfs)
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return;
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DEBUGFS_RM(dbgfs->dir_drv);
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kfree(dbgfs);
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dbgfs = NULL;
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}
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