Linux-libre 4.5-gnu

1 files changed, 0 insertions, 500 deletions

diff --git a/drivers/net/wireless/b43legacy/debugfs.c b/drivers/net/wireless/b43legacy/debugfs.c
deleted file mode 100644
index 090910ea2..000000000
--- a/drivers/net/wireless/b43legacy/debugfs.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/*
-
-  Broadcom B43legacy wireless driver
-
-  debugfs driver debugging code
-
-  Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with this program; see the file COPYING.  If not, write to
-  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
-  Boston, MA 02110-1301, USA.
-
-*/
-
-#include <linux/fs.h>
-#include <linux/debugfs.h>
-#include <linux/slab.h>
-#include <linux/netdevice.h>
-#include <linux/pci.h>
-#include <linux/mutex.h>
-
-#include "b43legacy.h"
-#include "main.h"
-#include "debugfs.h"
-#include "dma.h"
-#include "pio.h"
-#include "xmit.h"
-
-
-/* The root directory. */
-static struct dentry *rootdir;
-
-struct b43legacy_debugfs_fops {
-	ssize_t (*read)(struct b43legacy_wldev *dev, char *buf, size_t bufsize);
-	int (*write)(struct b43legacy_wldev *dev, const char *buf, size_t count);
-	struct file_operations fops;
-	/* Offset of struct b43legacy_dfs_file in struct b43legacy_dfsentry */
-	size_t file_struct_offset;
-	/* Take wl->irq_lock before calling read/write? */
-	bool take_irqlock;
-};
-
-static inline
-struct b43legacy_dfs_file * fops_to_dfs_file(struct b43legacy_wldev *dev,
-				       const struct b43legacy_debugfs_fops *dfops)
-{
-	void *p;
-
-	p = dev->dfsentry;
-	p += dfops->file_struct_offset;
-
-	return p;
-}
-
-
-#define fappend(fmt, x...)	\
-	do {							\
-		if (bufsize - count)				\
-			count += snprintf(buf + count,		\
-					  bufsize - count,	\
-					  fmt , ##x);		\
-		else						\
-			printk(KERN_ERR "b43legacy: fappend overflow\n"); \
-	} while (0)
-
-
-/* wl->irq_lock is locked */
-static ssize_t tsf_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
-{
-	ssize_t count = 0;
-	u64 tsf;
-
-	b43legacy_tsf_read(dev, &tsf);
-	fappend("0x%08x%08x\n",
-		(unsigned int)((tsf & 0xFFFFFFFF00000000ULL) >> 32),
-		(unsigned int)(tsf & 0xFFFFFFFFULL));
-
-	return count;
-}
-
-/* wl->irq_lock is locked */
-static int tsf_write_file(struct b43legacy_wldev *dev, const char *buf, size_t count)
-{
-	u64 tsf;
-
-	if (sscanf(buf, "%llu", (unsigned long long *)(&tsf)) != 1)
-		return -EINVAL;
-	b43legacy_tsf_write(dev, tsf);
-
-	return 0;
-}
-
-/* wl->irq_lock is locked */
-static ssize_t ucode_regs_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
-{
-	ssize_t count = 0;
-	int i;
-
-	for (i = 0; i < 64; i++) {
-		fappend("r%d = 0x%04x\n", i,
-			b43legacy_shm_read16(dev, B43legacy_SHM_WIRELESS, i));
-	}
-
-	return count;
-}
-
-/* wl->irq_lock is locked */
-static ssize_t shm_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
-{
-	ssize_t count = 0;
-	int i;
-	u16 tmp;
-	__le16 *le16buf = (__le16 *)buf;
-
-	for (i = 0; i < 0x1000; i++) {
-		if (bufsize < sizeof(tmp))
-			break;
-		tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 2 * i);
-		le16buf[i] = cpu_to_le16(tmp);
-		count += sizeof(tmp);
-		bufsize -= sizeof(tmp);
-	}
-
-	return count;
-}
-
-static ssize_t txstat_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
-{
-	struct b43legacy_txstatus_log *log = &dev->dfsentry->txstatlog;
-	ssize_t count = 0;
-	unsigned long flags;
-	int i, idx;
-	struct b43legacy_txstatus *stat;
-
-	spin_lock_irqsave(&log->lock, flags);
-	if (log->end < 0) {
-		fappend("Nothing transmitted, yet\n");
-		goto out_unlock;
-	}
-	fappend("b43legacy TX status reports:\n\n"
-		"index | cookie | seq | phy_stat | frame_count | "
-		"rts_count | supp_reason | pm_indicated | "
-		"intermediate | for_ampdu | acked\n" "---\n");
-	i = log->end + 1;
-	idx = 0;
-	while (1) {
-		if (i == B43legacy_NR_LOGGED_TXSTATUS)
-			i = 0;
-		stat = &(log->log[i]);
-		if (stat->cookie) {
-			fappend("%03d | "
-				"0x%04X | 0x%04X | 0x%02X | "
-				"0x%X | 0x%X | "
-				"%u | %u | "
-				"%u | %u | %u\n",
-				idx,
-				stat->cookie, stat->seq, stat->phy_stat,
-				stat->frame_count, stat->rts_count,
-				stat->supp_reason, stat->pm_indicated,
-				stat->intermediate, stat->for_ampdu,
-				stat->acked);
-			idx++;
-		}
-		if (i == log->end)
-			break;
-		i++;
-	}
-out_unlock:
-	spin_unlock_irqrestore(&log->lock, flags);
-
-	return count;
-}
-
-/* wl->irq_lock is locked */
-static int restart_write_file(struct b43legacy_wldev *dev, const char *buf, size_t count)
-{
-	int err = 0;
-
-	if (count > 0 && buf[0] == '1') {
-		b43legacy_controller_restart(dev, "manually restarted");
-	} else
-		err = -EINVAL;
-
-	return err;
-}
-
-#undef fappend
-
-static ssize_t b43legacy_debugfs_read(struct file *file, char __user *userbuf,
-				size_t count, loff_t *ppos)
-{
-	struct b43legacy_wldev *dev;
-	struct b43legacy_debugfs_fops *dfops;
-	struct b43legacy_dfs_file *dfile;
-	ssize_t uninitialized_var(ret);
-	char *buf;
-	const size_t bufsize = 1024 * 16; /* 16 KiB buffer */
-	const size_t buforder = get_order(bufsize);
-	int err = 0;
-
-	if (!count)
-		return 0;
-	dev = file->private_data;
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->wl->mutex);
-	if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
-		err = -ENODEV;
-		goto out_unlock;
-	}
-
-	dfops = container_of(file->f_op, struct b43legacy_debugfs_fops, fops);
-	if (!dfops->read) {
-		err = -ENOSYS;
-		goto out_unlock;
-	}
-	dfile = fops_to_dfs_file(dev, dfops);
-
-	if (!dfile->buffer) {
-		buf = (char *)__get_free_pages(GFP_KERNEL, buforder);
-		if (!buf) {
-			err = -ENOMEM;
-			goto out_unlock;
-		}
-		memset(buf, 0, bufsize);
-		if (dfops->take_irqlock) {
-			spin_lock_irq(&dev->wl->irq_lock);
-			ret = dfops->read(dev, buf, bufsize);
-			spin_unlock_irq(&dev->wl->irq_lock);
-		} else
-			ret = dfops->read(dev, buf, bufsize);
-		if (ret <= 0) {
-			free_pages((unsigned long)buf, buforder);
-			err = ret;
-			goto out_unlock;
-		}
-		dfile->data_len = ret;
-		dfile->buffer = buf;
-	}
-
-	ret = simple_read_from_buffer(userbuf, count, ppos,
-				      dfile->buffer,
-				      dfile->data_len);
-	if (*ppos >= dfile->data_len) {
-		free_pages((unsigned long)dfile->buffer, buforder);
-		dfile->buffer = NULL;
-		dfile->data_len = 0;
-	}
-out_unlock:
-	mutex_unlock(&dev->wl->mutex);
-
-	return err ? err : ret;
-}
-
-static ssize_t b43legacy_debugfs_write(struct file *file,
-				 const char __user *userbuf,
-				 size_t count, loff_t *ppos)
-{
-	struct b43legacy_wldev *dev;
-	struct b43legacy_debugfs_fops *dfops;
-	char *buf;
-	int err = 0;
-
-	if (!count)
-		return 0;
-	if (count > PAGE_SIZE)
-		return -E2BIG;
-	dev = file->private_data;
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->wl->mutex);
-	if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
-		err = -ENODEV;
-		goto out_unlock;
-	}
-
-	dfops = container_of(file->f_op, struct b43legacy_debugfs_fops, fops);
-	if (!dfops->write) {
-		err = -ENOSYS;
-		goto out_unlock;
-	}
-
-	buf = (char *)get_zeroed_page(GFP_KERNEL);
-	if (!buf) {
-		err = -ENOMEM;
-		goto out_unlock;
-	}
-	if (copy_from_user(buf, userbuf, count)) {
-		err = -EFAULT;
-		goto out_freepage;
-	}
-	if (dfops->take_irqlock) {
-		spin_lock_irq(&dev->wl->irq_lock);
-		err = dfops->write(dev, buf, count);
-		spin_unlock_irq(&dev->wl->irq_lock);
-	} else
-		err = dfops->write(dev, buf, count);
-	if (err)
-		goto out_freepage;
-
-out_freepage:
-	free_page((unsigned long)buf);
-out_unlock:
-	mutex_unlock(&dev->wl->mutex);
-
-	return err ? err : count;
-}
-
-
-#define B43legacy_DEBUGFS_FOPS(name, _read, _write, _take_irqlock)	\
-	static struct b43legacy_debugfs_fops fops_##name = {		\
-		.read	= _read,				\
-		.write	= _write,				\
-		.fops	= {					\
-			.open	= simple_open,				\
-			.read	= b43legacy_debugfs_read,		\
-			.write	= b43legacy_debugfs_write,		\
-			.llseek = generic_file_llseek,			\
-		},						\
-		.file_struct_offset = offsetof(struct b43legacy_dfsentry, \
-					       file_##name),	\
-		.take_irqlock	= _take_irqlock,		\
-	}
-
-B43legacy_DEBUGFS_FOPS(tsf, tsf_read_file, tsf_write_file, 1);
-B43legacy_DEBUGFS_FOPS(ucode_regs, ucode_regs_read_file, NULL, 1);
-B43legacy_DEBUGFS_FOPS(shm, shm_read_file, NULL, 1);
-B43legacy_DEBUGFS_FOPS(txstat, txstat_read_file, NULL, 0);
-B43legacy_DEBUGFS_FOPS(restart, NULL, restart_write_file, 1);
-
-
-int b43legacy_debug(struct b43legacy_wldev *dev, enum b43legacy_dyndbg feature)
-{
-	return !!(dev->dfsentry && dev->dfsentry->dyn_debug[feature]);
-}
-
-static void b43legacy_remove_dynamic_debug(struct b43legacy_wldev *dev)
-{
-	struct b43legacy_dfsentry *e = dev->dfsentry;
-	int i;
-
-	for (i = 0; i < __B43legacy_NR_DYNDBG; i++)
-		debugfs_remove(e->dyn_debug_dentries[i]);
-}
-
-static void b43legacy_add_dynamic_debug(struct b43legacy_wldev *dev)
-{
-	struct b43legacy_dfsentry *e = dev->dfsentry;
-	struct dentry *d;
-
-#define add_dyn_dbg(name, id, initstate) do {		\
-	e->dyn_debug[id] = (initstate);			\
-	d = debugfs_create_bool(name, 0600, e->subdir,	\
-				&(e->dyn_debug[id]));	\
-	if (!IS_ERR(d))					\
-		e->dyn_debug_dentries[id] = d;		\
-				} while (0)
-
-	add_dyn_dbg("debug_xmitpower", B43legacy_DBG_XMITPOWER, false);
-	add_dyn_dbg("debug_dmaoverflow", B43legacy_DBG_DMAOVERFLOW, false);
-	add_dyn_dbg("debug_dmaverbose", B43legacy_DBG_DMAVERBOSE, false);
-	add_dyn_dbg("debug_pwork_fast", B43legacy_DBG_PWORK_FAST, false);
-	add_dyn_dbg("debug_pwork_stop", B43legacy_DBG_PWORK_STOP, false);
-
-#undef add_dyn_dbg
-}
-
-void b43legacy_debugfs_add_device(struct b43legacy_wldev *dev)
-{
-	struct b43legacy_dfsentry *e;
-	struct b43legacy_txstatus_log *log;
-	char devdir[16];
-
-	B43legacy_WARN_ON(!dev);
-	e = kzalloc(sizeof(*e), GFP_KERNEL);
-	if (!e) {
-		b43legacyerr(dev->wl, "debugfs: add device OOM\n");
-		return;
-	}
-	e->dev = dev;
-	log = &e->txstatlog;
-	log->log = kcalloc(B43legacy_NR_LOGGED_TXSTATUS,
-			   sizeof(struct b43legacy_txstatus), GFP_KERNEL);
-	if (!log->log) {
-		b43legacyerr(dev->wl, "debugfs: add device txstatus OOM\n");
-		kfree(e);
-		return;
-	}
-	log->end = -1;
-	spin_lock_init(&log->lock);
-
-	dev->dfsentry = e;
-
-	snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy));
-	e->subdir = debugfs_create_dir(devdir, rootdir);
-	if (!e->subdir || IS_ERR(e->subdir)) {
-		if (e->subdir == ERR_PTR(-ENODEV)) {
-			b43legacydbg(dev->wl, "DebugFS (CONFIG_DEBUG_FS) not "
-			       "enabled in kernel config\n");
-		} else {
-			b43legacyerr(dev->wl, "debugfs: cannot create %s directory\n",
-			       devdir);
-		}
-		dev->dfsentry = NULL;
-		kfree(log->log);
-		kfree(e);
-		return;
-	}
-
-#define ADD_FILE(name, mode)	\
-	do {							\
-		struct dentry *d;				\
-		d = debugfs_create_file(__stringify(name),	\
-					mode, e->subdir, dev,	\
-					&fops_##name.fops);	\
-		e->file_##name.dentry = NULL;			\
-		if (!IS_ERR(d))					\
-			e->file_##name.dentry = d;		\
-	} while (0)
-
-
-	ADD_FILE(tsf, 0600);
-	ADD_FILE(ucode_regs, 0400);
-	ADD_FILE(shm, 0400);
-	ADD_FILE(txstat, 0400);
-	ADD_FILE(restart, 0200);
-
-#undef ADD_FILE
-
-	b43legacy_add_dynamic_debug(dev);
-}
-
-void b43legacy_debugfs_remove_device(struct b43legacy_wldev *dev)
-{
-	struct b43legacy_dfsentry *e;
-
-	if (!dev)
-		return;
-	e = dev->dfsentry;
-	if (!e)
-		return;
-	b43legacy_remove_dynamic_debug(dev);
-
-	debugfs_remove(e->file_tsf.dentry);
-	debugfs_remove(e->file_ucode_regs.dentry);
-	debugfs_remove(e->file_shm.dentry);
-	debugfs_remove(e->file_txstat.dentry);
-	debugfs_remove(e->file_restart.dentry);
-
-	debugfs_remove(e->subdir);
-	kfree(e->txstatlog.log);
-	kfree(e);
-}
-
-void b43legacy_debugfs_log_txstat(struct b43legacy_wldev *dev,
-			    const struct b43legacy_txstatus *status)
-{
-	struct b43legacy_dfsentry *e = dev->dfsentry;
-	struct b43legacy_txstatus_log *log;
-	struct b43legacy_txstatus *cur;
-	int i;
-
-	if (!e)
-		return;
-	log = &e->txstatlog;
-	B43legacy_WARN_ON(!irqs_disabled());
-	spin_lock(&log->lock);
-	i = log->end + 1;
-	if (i == B43legacy_NR_LOGGED_TXSTATUS)
-		i = 0;
-	log->end = i;
-	cur = &(log->log[i]);
-	memcpy(cur, status, sizeof(*cur));
-	spin_unlock(&log->lock);
-}
-
-void b43legacy_debugfs_init(void)
-{
-	rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
-	if (IS_ERR(rootdir))
-		rootdir = NULL;
-}
-
-void b43legacy_debugfs_exit(void)
-{
-	debugfs_remove(rootdir);
-}