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/*
* 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
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