Root/
1 | /* ATM driver model support. */ |
2 | |
3 | #include <linux/kernel.h> |
4 | #include <linux/slab.h> |
5 | #include <linux/init.h> |
6 | #include <linux/kobject.h> |
7 | #include <linux/atmdev.h> |
8 | #include "common.h" |
9 | #include "resources.h" |
10 | |
11 | #define to_atm_dev(cldev) container_of(cldev, struct atm_dev, class_dev) |
12 | |
13 | static ssize_t show_type(struct device *cdev, |
14 | struct device_attribute *attr, char *buf) |
15 | { |
16 | struct atm_dev *adev = to_atm_dev(cdev); |
17 | return sprintf(buf, "%s\n", adev->type); |
18 | } |
19 | |
20 | static ssize_t show_address(struct device *cdev, |
21 | struct device_attribute *attr, char *buf) |
22 | { |
23 | char *pos = buf; |
24 | struct atm_dev *adev = to_atm_dev(cdev); |
25 | int i; |
26 | |
27 | for (i = 0; i < (ESI_LEN - 1); i++) |
28 | pos += sprintf(pos, "%02x:", adev->esi[i]); |
29 | pos += sprintf(pos, "%02x\n", adev->esi[i]); |
30 | |
31 | return pos - buf; |
32 | } |
33 | |
34 | static ssize_t show_atmaddress(struct device *cdev, |
35 | struct device_attribute *attr, char *buf) |
36 | { |
37 | unsigned long flags; |
38 | char *pos = buf; |
39 | struct atm_dev *adev = to_atm_dev(cdev); |
40 | struct atm_dev_addr *aaddr; |
41 | int bin[] = { 1, 2, 10, 6, 1 }, *fmt = bin; |
42 | int i, j; |
43 | |
44 | spin_lock_irqsave(&adev->lock, flags); |
45 | list_for_each_entry(aaddr, &adev->local, entry) { |
46 | for (i = 0, j = 0; i < ATM_ESA_LEN; ++i, ++j) { |
47 | if (j == *fmt) { |
48 | pos += sprintf(pos, "."); |
49 | ++fmt; |
50 | j = 0; |
51 | } |
52 | pos += sprintf(pos, "%02x", |
53 | aaddr->addr.sas_addr.prv[i]); |
54 | } |
55 | pos += sprintf(pos, "\n"); |
56 | } |
57 | spin_unlock_irqrestore(&adev->lock, flags); |
58 | |
59 | return pos - buf; |
60 | } |
61 | |
62 | static ssize_t show_carrier(struct device *cdev, |
63 | struct device_attribute *attr, char *buf) |
64 | { |
65 | char *pos = buf; |
66 | struct atm_dev *adev = to_atm_dev(cdev); |
67 | |
68 | pos += sprintf(pos, "%d\n", |
69 | adev->signal == ATM_PHY_SIG_LOST ? 0 : 1); |
70 | |
71 | return pos - buf; |
72 | } |
73 | |
74 | static ssize_t show_link_rate(struct device *cdev, |
75 | struct device_attribute *attr, char *buf) |
76 | { |
77 | char *pos = buf; |
78 | struct atm_dev *adev = to_atm_dev(cdev); |
79 | int link_rate; |
80 | |
81 | /* show the link rate, not the data rate */ |
82 | switch (adev->link_rate) { |
83 | case ATM_OC3_PCR: |
84 | link_rate = 155520000; |
85 | break; |
86 | case ATM_OC12_PCR: |
87 | link_rate = 622080000; |
88 | break; |
89 | case ATM_25_PCR: |
90 | link_rate = 25600000; |
91 | break; |
92 | default: |
93 | link_rate = adev->link_rate * 8 * 53; |
94 | } |
95 | pos += sprintf(pos, "%d\n", link_rate); |
96 | |
97 | return pos - buf; |
98 | } |
99 | |
100 | static DEVICE_ATTR(address, S_IRUGO, show_address, NULL); |
101 | static DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL); |
102 | static DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL); |
103 | static DEVICE_ATTR(type, S_IRUGO, show_type, NULL); |
104 | static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL); |
105 | |
106 | static struct device_attribute *atm_attrs[] = { |
107 | &dev_attr_atmaddress, |
108 | &dev_attr_address, |
109 | &dev_attr_carrier, |
110 | &dev_attr_type, |
111 | &dev_attr_link_rate, |
112 | NULL |
113 | }; |
114 | |
115 | |
116 | static int atm_uevent(struct device *cdev, struct kobj_uevent_env *env) |
117 | { |
118 | struct atm_dev *adev; |
119 | |
120 | if (!cdev) |
121 | return -ENODEV; |
122 | |
123 | adev = to_atm_dev(cdev); |
124 | if (!adev) |
125 | return -ENODEV; |
126 | |
127 | if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number)) |
128 | return -ENOMEM; |
129 | |
130 | return 0; |
131 | } |
132 | |
133 | static void atm_release(struct device *cdev) |
134 | { |
135 | struct atm_dev *adev = to_atm_dev(cdev); |
136 | |
137 | kfree(adev); |
138 | } |
139 | |
140 | static struct class atm_class = { |
141 | .name = "atm", |
142 | .dev_release = atm_release, |
143 | .dev_uevent = atm_uevent, |
144 | }; |
145 | |
146 | int atm_register_sysfs(struct atm_dev *adev) |
147 | { |
148 | struct device *cdev = &adev->class_dev; |
149 | int i, j, err; |
150 | |
151 | cdev->class = &atm_class; |
152 | dev_set_drvdata(cdev, adev); |
153 | |
154 | dev_set_name(cdev, "%s%d", adev->type, adev->number); |
155 | err = device_register(cdev); |
156 | if (err < 0) |
157 | return err; |
158 | |
159 | for (i = 0; atm_attrs[i]; i++) { |
160 | err = device_create_file(cdev, atm_attrs[i]); |
161 | if (err) |
162 | goto err_out; |
163 | } |
164 | |
165 | return 0; |
166 | |
167 | err_out: |
168 | for (j = 0; j < i; j++) |
169 | device_remove_file(cdev, atm_attrs[j]); |
170 | device_del(cdev); |
171 | return err; |
172 | } |
173 | |
174 | void atm_unregister_sysfs(struct atm_dev *adev) |
175 | { |
176 | struct device *cdev = &adev->class_dev; |
177 | |
178 | device_del(cdev); |
179 | } |
180 | |
181 | int __init atm_sysfs_init(void) |
182 | { |
183 | return class_register(&atm_class); |
184 | } |
185 | |
186 | void __exit atm_sysfs_exit(void) |
187 | { |
188 | class_unregister(&atm_class); |
189 | } |
190 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9