1 /* ATM driver model support. */
3 #include <linux/kernel.h>
4 #include <linux/init.h>
5 #include <linux/kobject.h>
6 #include <linux/atmdev.h>
10 #define to_atm_dev(cldev) container_of(cldev, struct atm_dev, class_dev)
12 static ssize_t show_type(struct device *cdev,
13 struct device_attribute *attr, char *buf)
15 struct atm_dev *adev = to_atm_dev(cdev);
16 return sprintf(buf, "%s\n", adev->type);
19 static ssize_t show_address(struct device *cdev,
20 struct device_attribute *attr, char *buf)
23 struct atm_dev *adev = to_atm_dev(cdev);
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]);
33 static ssize_t show_atmaddress(struct device *cdev,
34 struct device_attribute *attr, char *buf)
38 struct atm_dev *adev = to_atm_dev(cdev);
39 struct atm_dev_addr *aaddr;
40 int bin[] = { 1, 2, 10, 6, 1 }, *fmt = bin;
43 spin_lock_irqsave(&adev->lock, flags);
44 list_for_each_entry(aaddr, &adev->local, entry) {
45 for (i = 0, j = 0; i < ATM_ESA_LEN; ++i, ++j) {
47 pos += sprintf(pos, ".");
51 pos += sprintf(pos, "%02x",
52 aaddr->addr.sas_addr.prv[i]);
54 pos += sprintf(pos, "\n");
56 spin_unlock_irqrestore(&adev->lock, flags);
61 static ssize_t show_carrier(struct device *cdev,
62 struct device_attribute *attr, char *buf)
65 struct atm_dev *adev = to_atm_dev(cdev);
67 pos += sprintf(pos, "%d\n",
68 adev->signal == ATM_PHY_SIG_LOST ? 0 : 1);
73 static ssize_t show_link_rate(struct device *cdev,
74 struct device_attribute *attr, char *buf)
77 struct atm_dev *adev = to_atm_dev(cdev);
80 /* show the link rate, not the data rate */
81 switch (adev->link_rate) {
83 link_rate = 155520000;
86 link_rate = 622080000;
92 link_rate = adev->link_rate * 8 * 53;
94 pos += sprintf(pos, "%d\n", link_rate);
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);
105 static struct device_attribute *atm_attrs[] = {
106 &dev_attr_atmaddress,
115 static int atm_uevent(struct device *cdev, struct kobj_uevent_env *env)
117 struct atm_dev *adev;
122 adev = to_atm_dev(cdev);
126 if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number))
132 static void atm_release(struct device *cdev)
134 struct atm_dev *adev = to_atm_dev(cdev);
139 static struct class atm_class = {
141 .dev_release = atm_release,
142 .dev_uevent = atm_uevent,
145 int atm_register_sysfs(struct atm_dev *adev)
147 struct device *cdev = &adev->class_dev;
150 cdev->class = &atm_class;
151 dev_set_drvdata(cdev, adev);
153 dev_set_name(cdev, "%s%d", adev->type, adev->number);
154 err = device_register(cdev);
158 for (i = 0; atm_attrs[i]; i++) {
159 err = device_create_file(cdev, atm_attrs[i]);
167 for (j = 0; j < i; j++)
168 device_remove_file(cdev, atm_attrs[j]);
173 void atm_unregister_sysfs(struct atm_dev *adev)
175 struct device *cdev = &adev->class_dev;
180 int __init atm_sysfs_init(void)
182 return class_register(&atm_class);
185 void __exit atm_sysfs_exit(void)
187 class_unregister(&atm_class);