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656d98b0 RK |
1 | /* ATM driver model support. */ |
2 | ||
656d98b0 RK |
3 | #include <linux/kernel.h> |
4 | #include <linux/init.h> | |
5 | #include <linux/kobject.h> | |
6 | #include <linux/atmdev.h> | |
7 | #include "common.h" | |
8 | #include "resources.h" | |
9 | ||
10 | #define to_atm_dev(cldev) container_of(cldev, struct atm_dev, class_dev) | |
11 | ||
ef39592f KS |
12 | static ssize_t show_type(struct device *cdev, |
13 | struct device_attribute *attr, char *buf) | |
656d98b0 RK |
14 | { |
15 | struct atm_dev *adev = to_atm_dev(cdev); | |
16 | return sprintf(buf, "%s\n", adev->type); | |
17 | } | |
18 | ||
ef39592f KS |
19 | static ssize_t show_address(struct device *cdev, |
20 | struct device_attribute *attr, char *buf) | |
656d98b0 RK |
21 | { |
22 | char *pos = buf; | |
23 | struct atm_dev *adev = to_atm_dev(cdev); | |
24 | int i; | |
25 | ||
26 | for (i = 0; i < (ESI_LEN - 1); i++) | |
27 | pos += sprintf(pos, "%02x:", adev->esi[i]); | |
28 | pos += sprintf(pos, "%02x\n", adev->esi[i]); | |
29 | ||
30 | return pos - buf; | |
31 | } | |
32 | ||
ef39592f KS |
33 | static ssize_t show_atmaddress(struct device *cdev, |
34 | struct device_attribute *attr, char *buf) | |
656d98b0 | 35 | { |
f7d57453 | 36 | unsigned long flags; |
656d98b0 RK |
37 | char *pos = buf; |
38 | struct atm_dev *adev = to_atm_dev(cdev); | |
f7d57453 | 39 | struct atm_dev_addr *aaddr; |
656d98b0 RK |
40 | int bin[] = { 1, 2, 10, 6, 1 }, *fmt = bin; |
41 | int i, j; | |
42 | ||
f7d57453 YH |
43 | spin_lock_irqsave(&adev->lock, flags); |
44 | list_for_each_entry(aaddr, &adev->local, entry) { | |
f0a6cb11 | 45 | for (i = 0, j = 0; i < ATM_ESA_LEN; ++i, ++j) { |
656d98b0 RK |
46 | if (j == *fmt) { |
47 | pos += sprintf(pos, "."); | |
48 | ++fmt; | |
49 | j = 0; | |
50 | } | |
f0a6cb11 JP |
51 | pos += sprintf(pos, "%02x", |
52 | aaddr->addr.sas_addr.prv[i]); | |
656d98b0 RK |
53 | } |
54 | pos += sprintf(pos, "\n"); | |
55 | } | |
f7d57453 | 56 | spin_unlock_irqrestore(&adev->lock, flags); |
656d98b0 RK |
57 | |
58 | return pos - buf; | |
59 | } | |
60 | ||
ef39592f KS |
61 | static ssize_t show_carrier(struct device *cdev, |
62 | struct device_attribute *attr, char *buf) | |
656d98b0 RK |
63 | { |
64 | char *pos = buf; | |
65 | struct atm_dev *adev = to_atm_dev(cdev); | |
66 | ||
67 | pos += sprintf(pos, "%d\n", | |
68 | adev->signal == ATM_PHY_SIG_LOST ? 0 : 1); | |
f7d57453 | 69 | |
656d98b0 RK |
70 | return pos - buf; |
71 | } | |
72 | ||
ef39592f KS |
73 | static ssize_t show_link_rate(struct device *cdev, |
74 | struct device_attribute *attr, char *buf) | |
656d98b0 RK |
75 | { |
76 | char *pos = buf; | |
77 | struct atm_dev *adev = to_atm_dev(cdev); | |
78 | int link_rate; | |
79 | ||
80 | /* show the link rate, not the data rate */ | |
81 | switch (adev->link_rate) { | |
f0a6cb11 JP |
82 | case ATM_OC3_PCR: |
83 | link_rate = 155520000; | |
84 | break; | |
85 | case ATM_OC12_PCR: | |
86 | link_rate = 622080000; | |
87 | break; | |
88 | case ATM_25_PCR: | |
89 | link_rate = 25600000; | |
90 | break; | |
91 | default: | |
92 | link_rate = adev->link_rate * 8 * 53; | |
656d98b0 RK |
93 | } |
94 | pos += sprintf(pos, "%d\n", link_rate); | |
f7d57453 | 95 | |
656d98b0 RK |
96 | return pos - buf; |
97 | } | |
98 | ||
ef39592f KS |
99 | static DEVICE_ATTR(address, S_IRUGO, show_address, NULL); |
100 | static DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL); | |
101 | static DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL); | |
102 | static DEVICE_ATTR(type, S_IRUGO, show_type, NULL); | |
103 | static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL); | |
104 | ||
105 | static struct device_attribute *atm_attrs[] = { | |
106 | &dev_attr_atmaddress, | |
107 | &dev_attr_address, | |
108 | &dev_attr_carrier, | |
109 | &dev_attr_type, | |
110 | &dev_attr_link_rate, | |
656d98b0 RK |
111 | NULL |
112 | }; | |
113 | ||
ef39592f KS |
114 | |
115 | static int atm_uevent(struct device *cdev, struct kobj_uevent_env *env) | |
656d98b0 RK |
116 | { |
117 | struct atm_dev *adev; | |
656d98b0 RK |
118 | |
119 | if (!cdev) | |
120 | return -ENODEV; | |
121 | ||
122 | adev = to_atm_dev(cdev); | |
123 | if (!adev) | |
124 | return -ENODEV; | |
125 | ||
7eff2e7a | 126 | if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number)) |
656d98b0 RK |
127 | return -ENOMEM; |
128 | ||
656d98b0 RK |
129 | return 0; |
130 | } | |
131 | ||
ef39592f | 132 | static void atm_release(struct device *cdev) |
656d98b0 RK |
133 | { |
134 | struct atm_dev *adev = to_atm_dev(cdev); | |
135 | ||
136 | kfree(adev); | |
137 | } | |
138 | ||
139 | static struct class atm_class = { | |
140 | .name = "atm", | |
ef39592f KS |
141 | .dev_release = atm_release, |
142 | .dev_uevent = atm_uevent, | |
656d98b0 RK |
143 | }; |
144 | ||
145 | int atm_register_sysfs(struct atm_dev *adev) | |
146 | { | |
ef39592f | 147 | struct device *cdev = &adev->class_dev; |
97f80bc6 | 148 | int i, j, err; |
656d98b0 RK |
149 | |
150 | cdev->class = &atm_class; | |
ef39592f | 151 | dev_set_drvdata(cdev, adev); |
656d98b0 | 152 | |
fb28ad35 | 153 | dev_set_name(cdev, "%s%d", adev->type, adev->number); |
ef39592f | 154 | err = device_register(cdev); |
656d98b0 RK |
155 | if (err < 0) |
156 | return err; | |
157 | ||
97f80bc6 | 158 | for (i = 0; atm_attrs[i]; i++) { |
ef39592f | 159 | err = device_create_file(cdev, atm_attrs[i]); |
97f80bc6 JG |
160 | if (err) |
161 | goto err_out; | |
162 | } | |
656d98b0 RK |
163 | |
164 | return 0; | |
97f80bc6 JG |
165 | |
166 | err_out: | |
167 | for (j = 0; j < i; j++) | |
ef39592f KS |
168 | device_remove_file(cdev, atm_attrs[j]); |
169 | device_del(cdev); | |
97f80bc6 | 170 | return err; |
656d98b0 RK |
171 | } |
172 | ||
173 | void atm_unregister_sysfs(struct atm_dev *adev) | |
174 | { | |
ef39592f | 175 | struct device *cdev = &adev->class_dev; |
656d98b0 | 176 | |
ef39592f | 177 | device_del(cdev); |
656d98b0 RK |
178 | } |
179 | ||
180 | int __init atm_sysfs_init(void) | |
181 | { | |
182 | return class_register(&atm_class); | |
183 | } | |
184 | ||
185 | void __exit atm_sysfs_exit(void) | |
186 | { | |
187 | class_unregister(&atm_class); | |
188 | } |