106 lines
2.5 KiB
C
106 lines
2.5 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2012 Broadcom Corporation
|
||
|
|
*
|
||
|
|
* 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/netdevice.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/devcoredump.h>
|
||
|
|
|
||
|
|
#include <brcmu_wifi.h>
|
||
|
|
#include <brcmu_utils.h>
|
||
|
|
#include "core.h"
|
||
|
|
#include "bus.h"
|
||
|
|
#include "fweh.h"
|
||
|
|
#include "debug.h"
|
||
|
|
|
||
|
|
static struct dentry *root_folder;
|
||
|
|
|
||
|
|
int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
|
||
|
|
size_t len)
|
||
|
|
{
|
||
|
|
void *dump;
|
||
|
|
size_t ramsize;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
ramsize = brcmf_bus_get_ramsize(bus);
|
||
|
|
if (!ramsize)
|
||
|
|
return -ENOTSUPP;
|
||
|
|
|
||
|
|
dump = vzalloc(len + ramsize);
|
||
|
|
if (!dump)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
memcpy(dump, data, len);
|
||
|
|
err = brcmf_bus_get_memdump(bus, dump + len, ramsize);
|
||
|
|
if (err) {
|
||
|
|
vfree(dump);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void brcmf_debugfs_init(void)
|
||
|
|
{
|
||
|
|
root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
|
||
|
|
if (IS_ERR(root_folder))
|
||
|
|
root_folder = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
void brcmf_debugfs_exit(void)
|
||
|
|
{
|
||
|
|
if (!root_folder)
|
||
|
|
return;
|
||
|
|
|
||
|
|
debugfs_remove_recursive(root_folder);
|
||
|
|
root_folder = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
int brcmf_debug_attach(struct brcmf_pub *drvr)
|
||
|
|
{
|
||
|
|
struct device *dev = drvr->bus_if->dev;
|
||
|
|
|
||
|
|
if (!root_folder)
|
||
|
|
return -ENODEV;
|
||
|
|
|
||
|
|
drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder);
|
||
|
|
return PTR_ERR_OR_ZERO(drvr->dbgfs_dir);
|
||
|
|
}
|
||
|
|
|
||
|
|
void brcmf_debug_detach(struct brcmf_pub *drvr)
|
||
|
|
{
|
||
|
|
brcmf_fweh_unregister(drvr, BRCMF_E_PSM_WATCHDOG);
|
||
|
|
|
||
|
|
if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
|
||
|
|
debugfs_remove_recursive(drvr->dbgfs_dir);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
|
||
|
|
{
|
||
|
|
return drvr->dbgfs_dir;
|
||
|
|
}
|
||
|
|
|
||
|
|
int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
|
||
|
|
int (*read_fn)(struct seq_file *seq, void *data))
|
||
|
|
{
|
||
|
|
struct dentry *e;
|
||
|
|
|
||
|
|
e = debugfs_create_devm_seqfile(drvr->bus_if->dev, fn,
|
||
|
|
drvr->dbgfs_dir, read_fn);
|
||
|
|
return PTR_ERR_OR_ZERO(e);
|
||
|
|
}
|