1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Intel Wireless WiMAX Connection 2400m
4*4882a593Smuzhiyun * Sysfs interfaces to show driver and device information
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Copyright (C) 2007 Intel Corporation <linux-wimax@intel.com>
7*4882a593Smuzhiyun * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/netdevice.h>
11*4882a593Smuzhiyun #include <linux/etherdevice.h>
12*4882a593Smuzhiyun #include <linux/spinlock.h>
13*4882a593Smuzhiyun #include <linux/device.h>
14*4882a593Smuzhiyun #include "i2400m.h"
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun #define D_SUBMODULE sysfs
18*4882a593Smuzhiyun #include "debug-levels.h"
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun /*
22*4882a593Smuzhiyun * Set the idle timeout (msecs)
23*4882a593Smuzhiyun *
24*4882a593Smuzhiyun * FIXME: eventually this should be a common WiMAX stack method, but
25*4882a593Smuzhiyun * would like to wait to see how other devices manage it.
26*4882a593Smuzhiyun */
27*4882a593Smuzhiyun static
i2400m_idle_timeout_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t size)28*4882a593Smuzhiyun ssize_t i2400m_idle_timeout_store(struct device *dev,
29*4882a593Smuzhiyun struct device_attribute *attr,
30*4882a593Smuzhiyun const char *buf, size_t size)
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun ssize_t result;
33*4882a593Smuzhiyun struct i2400m *i2400m = net_dev_to_i2400m(to_net_dev(dev));
34*4882a593Smuzhiyun unsigned val;
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun result = -EINVAL;
37*4882a593Smuzhiyun if (sscanf(buf, "%u\n", &val) != 1)
38*4882a593Smuzhiyun goto error_no_unsigned;
39*4882a593Smuzhiyun if (val != 0 && (val < 100 || val > 300000 || val % 100 != 0)) {
40*4882a593Smuzhiyun dev_err(dev, "idle_timeout: %u: invalid msecs specification; "
41*4882a593Smuzhiyun "valid values are 0, 100-300000 in 100 increments\n",
42*4882a593Smuzhiyun val);
43*4882a593Smuzhiyun goto error_bad_value;
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun result = i2400m_set_idle_timeout(i2400m, val);
46*4882a593Smuzhiyun if (result >= 0)
47*4882a593Smuzhiyun result = size;
48*4882a593Smuzhiyun error_no_unsigned:
49*4882a593Smuzhiyun error_bad_value:
50*4882a593Smuzhiyun return result;
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun static
54*4882a593Smuzhiyun DEVICE_ATTR_WO(i2400m_idle_timeout);
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun static
57*4882a593Smuzhiyun struct attribute *i2400m_dev_attrs[] = {
58*4882a593Smuzhiyun &dev_attr_i2400m_idle_timeout.attr,
59*4882a593Smuzhiyun NULL,
60*4882a593Smuzhiyun };
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun struct attribute_group i2400m_dev_attr_group = {
63*4882a593Smuzhiyun .name = NULL, /* we want them in the same directory */
64*4882a593Smuzhiyun .attrs = i2400m_dev_attrs,
65*4882a593Smuzhiyun };
66