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authorAlexander Aring <alex.aring@gmail.com>2014-10-28 13:21:32 -0400
committerMarcel Holtmann <marcel@holtmann.org>2014-10-28 18:19:09 -0400
commite23e9ec16bf4bbaf12fc030079b277cb00f618f4 (patch)
tree5d582e1aa668854f421c03df0c7c20b59de32584 /net
parent74457641558baded3c9f05bc3fb81293a2c02b2e (diff)
ieee802154: introduce sysfs file
This patch moves the sysfs handling in a own file. This is like wireless sysfs file handling. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net')
-rw-r--r--net/ieee802154/Makefile2
-rw-r--r--net/ieee802154/core.c73
-rw-r--r--net/ieee802154/sysfs.c94
-rw-r--r--net/ieee802154/sysfs.h9
4 files changed, 108 insertions, 70 deletions
diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile
index e58c4cbb3639..38354d4a70cb 100644
--- a/net/ieee802154/Makefile
+++ b/net/ieee802154/Makefile
@@ -3,7 +3,7 @@ obj-$(CONFIG_IEEE802154_6LOWPAN) += ieee802154_6lowpan.o
3 3
4ieee802154_6lowpan-y := 6lowpan_rtnl.o reassembly.o 4ieee802154_6lowpan-y := 6lowpan_rtnl.o reassembly.o
5ieee802154-y := netlink.o nl-mac.o nl-phy.o nl_policy.o core.o \ 5ieee802154-y := netlink.o nl-mac.o nl-phy.o nl_policy.o core.o \
6 header_ops.o 6 header_ops.o sysfs.o
7af_802154-y := af_ieee802154.o raw.o dgram.o 7af_802154-y := af_ieee802154.o raw.o dgram.o
8 8
9ccflags-y += -D__CHECK_ENDIAN__ 9ccflags-y += -D__CHECK_ENDIAN__
diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c
index 760b7d752190..620abc2ba5fc 100644
--- a/net/ieee802154/core.c
+++ b/net/ieee802154/core.c
@@ -20,72 +20,7 @@
20#include <net/cfg802154.h> 20#include <net/cfg802154.h>
21 21
22#include "ieee802154.h" 22#include "ieee802154.h"
23 23#include "sysfs.h"
24#define MASTER_SHOW_COMPLEX(name, format_string, args...) \
25static ssize_t name ## _show(struct device *dev, \
26 struct device_attribute *attr, char *buf) \
27{ \
28 struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev); \
29 int ret; \
30 \
31 mutex_lock(&phy->pib_lock); \
32 ret = snprintf(buf, PAGE_SIZE, format_string "\n", args); \
33 mutex_unlock(&phy->pib_lock); \
34 return ret; \
35} \
36static DEVICE_ATTR_RO(name)
37
38#define MASTER_SHOW(field, format_string) \
39 MASTER_SHOW_COMPLEX(field, format_string, phy->field)
40
41MASTER_SHOW(current_channel, "%d");
42MASTER_SHOW(current_page, "%d");
43MASTER_SHOW(transmit_power, "%d +- 1 dB");
44MASTER_SHOW(cca_mode, "%d");
45
46static ssize_t channels_supported_show(struct device *dev,
47 struct device_attribute *attr,
48 char *buf)
49{
50 struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev);
51 int ret;
52 int i, len = 0;
53
54 mutex_lock(&phy->pib_lock);
55 for (i = 0; i < 32; i++) {
56 ret = snprintf(buf + len, PAGE_SIZE - len,
57 "%#09x\n", phy->channels_supported[i]);
58 if (ret < 0)
59 break;
60 len += ret;
61 }
62 mutex_unlock(&phy->pib_lock);
63 return len;
64}
65static DEVICE_ATTR_RO(channels_supported);
66
67static struct attribute *pmib_attrs[] = {
68 &dev_attr_current_channel.attr,
69 &dev_attr_current_page.attr,
70 &dev_attr_channels_supported.attr,
71 &dev_attr_transmit_power.attr,
72 &dev_attr_cca_mode.attr,
73 NULL,
74};
75ATTRIBUTE_GROUPS(pmib);
76
77static void wpan_phy_release(struct device *d)
78{
79 struct wpan_phy *phy = container_of(d, struct wpan_phy, dev);
80
81 kfree(phy);
82}
83
84static struct class wpan_phy_class = {
85 .name = "ieee802154",
86 .dev_release = wpan_phy_release,
87 .dev_groups = pmib_groups,
88};
89 24
90static DEFINE_MUTEX(wpan_phy_mutex); 25static DEFINE_MUTEX(wpan_phy_mutex);
91static int wpan_phy_idx; 26static int wpan_phy_idx;
@@ -197,7 +132,7 @@ static int __init wpan_phy_class_init(void)
197{ 132{
198 int rc; 133 int rc;
199 134
200 rc = class_register(&wpan_phy_class); 135 rc = wpan_phy_sysfs_init();
201 if (rc) 136 if (rc)
202 goto err; 137 goto err;
203 138
@@ -207,7 +142,7 @@ static int __init wpan_phy_class_init(void)
207 142
208 return 0; 143 return 0;
209err_nl: 144err_nl:
210 class_unregister(&wpan_phy_class); 145 wpan_phy_sysfs_exit();
211err: 146err:
212 return rc; 147 return rc;
213} 148}
@@ -216,7 +151,7 @@ subsys_initcall(wpan_phy_class_init);
216static void __exit wpan_phy_class_exit(void) 151static void __exit wpan_phy_class_exit(void)
217{ 152{
218 ieee802154_nl_exit(); 153 ieee802154_nl_exit();
219 class_unregister(&wpan_phy_class); 154 wpan_phy_sysfs_exit();
220} 155}
221module_exit(wpan_phy_class_exit); 156module_exit(wpan_phy_class_exit);
222 157
diff --git a/net/ieee802154/sysfs.c b/net/ieee802154/sysfs.c
new file mode 100644
index 000000000000..eb9ca6f99122
--- /dev/null
+++ b/net/ieee802154/sysfs.c
@@ -0,0 +1,94 @@
1/* This program is free software; you can redistribute it and/or modify
2 * it under the terms of the GNU General Public License version 2
3 * as published by the Free Software Foundation.
4 *
5 * This program is distributed in the hope that it will be useful,
6 * but WITHOUT ANY WARRANTY; without even the implied warranty of
7 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
8 * GNU General Public License for more details.
9 *
10 * Authors:
11 * Alexander Aring <aar@pengutronix.de>
12 *
13 * Based on: net/wireless/sysfs.c
14 */
15
16#include <linux/device.h>
17
18#include <net/cfg802154.h>
19
20#define MASTER_SHOW_COMPLEX(name, format_string, args...) \
21static ssize_t name ## _show(struct device *dev, \
22 struct device_attribute *attr, char *buf) \
23{ \
24 struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev); \
25 int ret; \
26 \
27 mutex_lock(&phy->pib_lock); \
28 ret = snprintf(buf, PAGE_SIZE, format_string "\n", args); \
29 mutex_unlock(&phy->pib_lock); \
30 return ret; \
31} \
32static DEVICE_ATTR_RO(name)
33
34#define MASTER_SHOW(field, format_string) \
35 MASTER_SHOW_COMPLEX(field, format_string, phy->field)
36
37MASTER_SHOW(current_channel, "%d");
38MASTER_SHOW(current_page, "%d");
39MASTER_SHOW(transmit_power, "%d +- 1 dB");
40MASTER_SHOW(cca_mode, "%d");
41
42static ssize_t channels_supported_show(struct device *dev,
43 struct device_attribute *attr,
44 char *buf)
45{
46 struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev);
47 int ret;
48 int i, len = 0;
49
50 mutex_lock(&phy->pib_lock);
51 for (i = 0; i < 32; i++) {
52 ret = snprintf(buf + len, PAGE_SIZE - len,
53 "%#09x\n", phy->channels_supported[i]);
54 if (ret < 0)
55 break;
56 len += ret;
57 }
58 mutex_unlock(&phy->pib_lock);
59 return len;
60}
61static DEVICE_ATTR_RO(channels_supported);
62
63static void wpan_phy_release(struct device *d)
64{
65 struct wpan_phy *phy = container_of(d, struct wpan_phy, dev);
66
67 kfree(phy);
68}
69
70static struct attribute *pmib_attrs[] = {
71 &dev_attr_current_channel.attr,
72 &dev_attr_current_page.attr,
73 &dev_attr_channels_supported.attr,
74 &dev_attr_transmit_power.attr,
75 &dev_attr_cca_mode.attr,
76 NULL,
77};
78ATTRIBUTE_GROUPS(pmib);
79
80struct class wpan_phy_class = {
81 .name = "ieee802154",
82 .dev_release = wpan_phy_release,
83 .dev_groups = pmib_groups,
84};
85
86int wpan_phy_sysfs_init(void)
87{
88 return class_register(&wpan_phy_class);
89}
90
91void wpan_phy_sysfs_exit(void)
92{
93 class_unregister(&wpan_phy_class);
94}
diff --git a/net/ieee802154/sysfs.h b/net/ieee802154/sysfs.h
new file mode 100644
index 000000000000..aa42e39ecbec
--- /dev/null
+++ b/net/ieee802154/sysfs.h
@@ -0,0 +1,9 @@
1#ifndef __IEEE802154_SYSFS_H
2#define __IEEE802154_SYSFS_H
3
4int wpan_phy_sysfs_init(void);
5void wpan_phy_sysfs_exit(void);
6
7extern struct class wpan_phy_class;
8
9#endif /* __IEEE802154_SYSFS_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 07:47:49 -0500