2 * Copyright (c) 2012 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 #include <linux/debugfs.h>
17 #include <linux/netdevice.h>
18 #include <linux/module.h>
20 #include <brcmu_wifi.h>
21 #include <brcmu_utils.h>
26 static struct dentry *root_folder;
28 void brcmf_debugfs_init(void)
30 root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
31 if (IS_ERR(root_folder))
35 void brcmf_debugfs_exit(void)
40 debugfs_remove_recursive(root_folder);
44 int brcmf_debugfs_attach(struct brcmf_pub *drvr)
46 struct device *dev = drvr->bus_if->dev;
51 drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder);
53 return PTR_ERR_OR_ZERO(drvr->dbgfs_dir);
56 void brcmf_debugfs_detach(struct brcmf_pub *drvr)
58 if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
59 debugfs_remove_recursive(drvr->dbgfs_dir);
62 struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
64 return drvr->dbgfs_dir;
67 int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
68 int (*read_fn)(struct seq_file *seq, void *data))
72 e = debugfs_create_devm_seqfile(drvr->bus_if->dev, fn,
73 drvr->dbgfs_dir, read_fn);
74 return PTR_ERR_OR_ZERO(e);