diff options
author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/net/wireless/brcm80211/brcmfmac/debug.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/net/wireless/brcm80211/brcmfmac/debug.c')
-rw-r--r-- | kernel/drivers/net/wireless/brcm80211/brcmfmac/debug.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/kernel/drivers/net/wireless/brcm80211/brcmfmac/debug.c b/kernel/drivers/net/wireless/brcm80211/brcmfmac/debug.c new file mode 100644 index 000000000..9b473d50b --- /dev/null +++ b/kernel/drivers/net/wireless/brcm80211/brcmfmac/debug.c @@ -0,0 +1,117 @@ +/* + * 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 <brcmu_wifi.h> +#include <brcmu_utils.h> +#include "core.h" +#include "bus.h" +#include "debug.h" + +static struct dentry *root_folder; + +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; +} + +static int brcmf_debugfs_chipinfo_read(struct seq_file *seq, void *data) +{ + struct brcmf_bus *bus = dev_get_drvdata(seq->private); + + seq_printf(seq, "chip: %x(%u) rev %u\n", + bus->chip, bus->chip, bus->chiprev); + return 0; +} + +int brcmf_debugfs_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); + brcmf_debugfs_add_entry(drvr, "chipinfo", brcmf_debugfs_chipinfo_read); + + return PTR_ERR_OR_ZERO(drvr->dbgfs_dir); +} + +void brcmf_debugfs_detach(struct brcmf_pub *drvr) +{ + 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; +} + +struct brcmf_debugfs_entry { + int (*read)(struct seq_file *seq, void *data); + struct brcmf_pub *drvr; +}; + +static int brcmf_debugfs_entry_open(struct inode *inode, struct file *f) +{ + struct brcmf_debugfs_entry *entry = inode->i_private; + + return single_open(f, entry->read, entry->drvr->bus_if->dev); +} + +static const struct file_operations brcmf_debugfs_def_ops = { + .owner = THIS_MODULE, + .open = brcmf_debugfs_entry_open, + .release = single_release, + .read = seq_read, + .llseek = seq_lseek +}; + +int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn, + int (*read_fn)(struct seq_file *seq, void *data)) +{ + struct dentry *dentry = drvr->dbgfs_dir; + struct brcmf_debugfs_entry *entry; + + if (IS_ERR_OR_NULL(dentry)) + return -ENOENT; + + entry = devm_kzalloc(drvr->bus_if->dev, sizeof(*entry), GFP_KERNEL); + if (!entry) + return -ENOMEM; + + entry->read = read_fn; + entry->drvr = drvr; + + dentry = debugfs_create_file(fn, S_IRUGO, dentry, entry, + &brcmf_debugfs_def_ops); + + return PTR_ERR_OR_ZERO(dentry); +} |