summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/brcm80211/brcmsmac/debug.c
blob: a5d4add26f416f31a7413c7a4a41158646232e4f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/*
 * Copyright (c) 2012 Broadcom Corporation
 * Copyright (c) 2012 Canonical Ltd.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
#include <linux/debugfs.h>
#include <linux/if_ether.h>
#include <linux/if.h>
#include <linux/net.h>
#include <linux/netdevice.h>
#include <linux/ieee80211.h>
#include <linux/module.h>
#include <net/mac80211.h>

#include <defs.h>
#include <brcmu_wifi.h>
#include <brcmu_utils.h>
#include "types.h"
#include "main.h"
#include "debug.h"
#include "brcms_trace_events.h"

static struct dentry *root_folder;

void brcms_debugfs_init(void)
{
	root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
	if (IS_ERR(root_folder))
		root_folder = NULL;
}

void brcms_debugfs_exit(void)
{
	if (!root_folder)
		return;

	debugfs_remove_recursive(root_folder);
	root_folder = NULL;
}

int brcms_debugfs_attach(struct brcms_pub *drvr)
{
	if (!root_folder)
		return -ENODEV;

	drvr->dbgfs_dir = debugfs_create_dir(
		 dev_name(&drvr->wlc->hw->d11core->dev), root_folder);
	return PTR_ERR_OR_ZERO(drvr->dbgfs_dir);
}

void brcms_debugfs_detach(struct brcms_pub *drvr)
{
	if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
		debugfs_remove_recursive(drvr->dbgfs_dir);
}

struct dentry *brcms_debugfs_get_devdir(struct brcms_pub *drvr)
{
	return drvr->dbgfs_dir;
}

static
ssize_t brcms_debugfs_hardware_read(struct file *f, char __user *data,
					size_t count, loff_t *ppos)
{
	char buf[128];
	int res;
	struct brcms_pub *drvr = f->private_data;

	/* only allow read from start */
	if (*ppos > 0)
		return 0;

	res = scnprintf(buf, sizeof(buf),
		"board vendor: %x\n"
		"board type: %x\n"
		"board revision: %x\n"
		"board flags: %x\n"
		"board flags2: %x\n"
		"firmware revision: %x\n",
		drvr->wlc->hw->d11core->bus->boardinfo.vendor,
		drvr->wlc->hw->d11core->bus->boardinfo.type,
		drvr->wlc->hw->boardrev,
		drvr->wlc->hw->boardflags,
		drvr->wlc->hw->boardflags2,
		drvr->wlc->ucode_rev
		);

	return simple_read_from_buffer(data, count, ppos, buf, res);
}

static const struct file_operations brcms_debugfs_hardware_ops = {
	.owner = THIS_MODULE,
	.open = simple_open,
	.read = brcms_debugfs_hardware_read
};

void brcms_debugfs_create_files(struct brcms_pub *drvr)
{
	struct dentry *dentry = drvr->dbgfs_dir;

	if (!IS_ERR_OR_NULL(dentry))
		debugfs_create_file("hardware", S_IRUGO, dentry,
				    drvr, &brcms_debugfs_hardware_ops);
}

#define __brcms_fn(fn)						\
void __brcms_ ##fn(struct device *dev, const char *fmt, ...)	\
{								\
	struct va_format vaf = {				\
		.fmt = fmt,					\
	};							\
	va_list args;						\
								\
	va_start(args, fmt);					\
	vaf.va = &args;						\
	dev_ ##fn(dev, "%pV", &vaf);				\
	trace_brcms_ ##fn(&vaf);				\
	va_end(args);						\
}

__brcms_fn(info)
__brcms_fn(warn)
__brcms_fn(err)
__brcms_fn(crit)

#if defined(CONFIG_BRCMDBG) || defined(CONFIG_BRCM_TRACING)
void __brcms_dbg(struct device *dev, u32 level, const char *func,
		 const char *fmt, ...)
{
	struct va_format vaf = {
		.fmt = fmt,
	};
	va_list args;

	va_start(args, fmt);
	vaf.va = &args;
#ifdef CONFIG_BRCMDBG
	if ((brcm_msg_level & level) && net_ratelimit())
		dev_err(dev, "%s %pV", func, &vaf);
#endif
	trace_brcms_dbg(level, func, &vaf);
	va_end(args);
}
#endif