95 строки
2.4 KiB
C
95 строки
2.4 KiB
C
|
/* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2
|
||
|
|
* as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* Authors:
|
||
|
|
* Alexander Aring <aar@pengutronix.de>
|
||
|
|
*
|
||
|
|
* Based on: net/wireless/sysfs.c
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/device.h>
|
||
|
|
|
||
|
|
#include <net/cfg802154.h>
|
||
|
|
|
||
|
|
#define MASTER_SHOW_COMPLEX(name, format_string, args...) \
|
||
|
|
static ssize_t name ## _show(struct device *dev, \
|
||
|
|
struct device_attribute *attr, char *buf) \
|
||
|
|
{ \
|
||
|
|
struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev); \
|
||
|
|
int ret; \
|
||
|
|
\
|
||
|
|
mutex_lock(&phy->pib_lock); \
|
||
|
|
ret = snprintf(buf, PAGE_SIZE, format_string "\n", args); \
|
||
|
|
mutex_unlock(&phy->pib_lock); \
|
||
|
|
return ret; \
|
||
|
|
} \
|
||
|
|
static DEVICE_ATTR_RO(name)
|
||
|
|
|
||
|
|
#define MASTER_SHOW(field, format_string) \
|
||
|
|
MASTER_SHOW_COMPLEX(field, format_string, phy->field)
|
||
|
|
|
||
|
|
MASTER_SHOW(current_channel, "%d");
|
||
|
|
MASTER_SHOW(current_page, "%d");
|
||
|
|
MASTER_SHOW(transmit_power, "%d +- 1 dB");
|
||
|
|
MASTER_SHOW(cca_mode, "%d");
|
||
|
|
|
||
|
|
static ssize_t channels_supported_show(struct device *dev,
|
||
|
|
struct device_attribute *attr,
|
||
|
|
char *buf)
|
||
|
|
{
|
||
|
|
struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev);
|
||
|
|
int ret;
|
||
|
|
int i, len = 0;
|
||
|
|
|
||
|
|
mutex_lock(&phy->pib_lock);
|
||
|
|
for (i = 0; i < 32; i++) {
|
||
|
|
ret = snprintf(buf + len, PAGE_SIZE - len,
|
||
|
|
"%#09x\n", phy->channels_supported[i]);
|
||
|
|
if (ret < 0)
|
||
|
|
break;
|
||
|
|
len += ret;
|
||
|
|
}
|
||
|
|
mutex_unlock(&phy->pib_lock);
|
||
|
|
return len;
|
||
|
|
}
|
||
|
|
static DEVICE_ATTR_RO(channels_supported);
|
||
|
|
|
||
|
|
static void wpan_phy_release(struct device *d)
|
||
|
|
{
|
||
|
|
struct wpan_phy *phy = container_of(d, struct wpan_phy, dev);
|
||
|
|
|
||
|
|
kfree(phy);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct attribute *pmib_attrs[] = {
|
||
|
|
&dev_attr_current_channel.attr,
|
||
|
|
&dev_attr_current_page.attr,
|
||
|
|
&dev_attr_channels_supported.attr,
|
||
|
|
&dev_attr_transmit_power.attr,
|
||
|
|
&dev_attr_cca_mode.attr,
|
||
|
|
NULL,
|
||
|
|
};
|
||
|
|
ATTRIBUTE_GROUPS(pmib);
|
||
|
|
|
||
|
|
struct class wpan_phy_class = {
|
||
|
|
.name = "ieee802154",
|
||
|
|
.dev_release = wpan_phy_release,
|
||
|
|
.dev_groups = pmib_groups,
|
||
|
|
};
|
||
|
|
|
||
|
|
int wpan_phy_sysfs_init(void)
|
||
|
|
{
|
||
|
|
return class_register(&wpan_phy_class);
|
||
|
|
}
|
||
|
|
|
||
|
|
void wpan_phy_sysfs_exit(void)
|
||
|
|
{
|
||
|
|
class_unregister(&wpan_phy_class);
|
||
|
|
}
|