81 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			81 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Intel Wireless WiMAX Connection 2400m
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 * Sysfs interfaces to show driver and device information
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 *
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 *
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 * Copyright (C) 2007 Intel Corporation <linux-wimax@intel.com>
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 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License version
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 * 2 as published by the Free Software Foundation.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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 * 02110-1301, USA.
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 */
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/spinlock.h>
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#include <linux/device.h>
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#include "i2400m.h"
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#define D_SUBMODULE sysfs
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#include "debug-levels.h"
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/*
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 * Set the idle timeout (msecs)
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 *
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 * FIXME: eventually this should be a common WiMAX stack method, but
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 * would like to wait to see how other devices manage it.
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 */
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static
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ssize_t i2400m_idle_timeout_store(struct device *dev,
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				  struct device_attribute *attr,
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				  const char *buf, size_t size)
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{
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	ssize_t result;
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	struct i2400m *i2400m = net_dev_to_i2400m(to_net_dev(dev));
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	unsigned val;
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	result = -EINVAL;
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	if (sscanf(buf, "%u\n", &val) != 1)
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		goto error_no_unsigned;
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	if (val != 0 && (val < 100 || val > 300000 || val % 100 != 0)) {
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		dev_err(dev, "idle_timeout: %u: invalid msecs specification; "
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			"valid values are 0, 100-300000 in 100 increments\n",
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			val);
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		goto error_bad_value;
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	}
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	result = i2400m_set_idle_timeout(i2400m, val);
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	if (result >= 0)
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		result = size;
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error_no_unsigned:
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error_bad_value:
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	return result;
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}
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static
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DEVICE_ATTR(i2400m_idle_timeout, S_IWUSR,
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	    NULL, i2400m_idle_timeout_store);
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static
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struct attribute *i2400m_dev_attrs[] = {
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	&dev_attr_i2400m_idle_timeout.attr,
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	NULL,
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};
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struct attribute_group i2400m_dev_attr_group = {
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	.name = NULL,		/* we want them in the same directory */
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	.attrs = i2400m_dev_attrs,
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};
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