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", aaddr->addr.sas_addr.prv[i]);
53 pos += sprintf(pos, "\n");
55 spin_unlock_irqrestore(&adev->lock, flags);
60 static ssize_t show_carrier(struct device *cdev,
61 struct device_attribute *attr, char *buf)
64 struct atm_dev *adev = to_atm_dev(cdev);
66 pos += sprintf(pos, "%d\n",
67 adev->signal == ATM_PHY_SIG_LOST ? 0 : 1);
72 static ssize_t show_link_rate(struct device *cdev,
73 struct device_attribute *attr, char *buf)
76 struct atm_dev *adev = to_atm_dev(cdev);
79 /* show the link rate, not the data rate */
80 switch (adev->link_rate) {
82 link_rate = 155520000;
85 link_rate = 622080000;
91 link_rate = adev->link_rate * 8 * 53;
93 pos += sprintf(pos, "%d\n", link_rate);
98 static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
99 static DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL);
100 static DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL);
101 static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
102 static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);
104 static struct device_attribute *atm_attrs[] = {
105 &dev_attr_atmaddress,
114 static int atm_uevent(struct device *cdev, struct kobj_uevent_env *env)
116 struct atm_dev *adev;
121 adev = to_atm_dev(cdev);
125 if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number))
131 static void atm_release(struct device *cdev)
133 struct atm_dev *adev = to_atm_dev(cdev);
138 static struct class atm_class = {
140 .dev_release = atm_release,
141 .dev_uevent = atm_uevent,
144 int atm_register_sysfs(struct atm_dev *adev)
146 struct device *cdev = &adev->class_dev;
149 cdev->class = &atm_class;
150 dev_set_drvdata(cdev, adev);
152 snprintf(cdev->bus_id, BUS_ID_SIZE, "%s%d", adev->type, adev->number);
153 err = device_register(cdev);
157 for (i = 0; atm_attrs[i]; i++) {
158 err = device_create_file(cdev, atm_attrs[i]);
166 for (j = 0; j < i; j++)
167 device_remove_file(cdev, atm_attrs[j]);
172 void atm_unregister_sysfs(struct atm_dev *adev)
174 struct device *cdev = &adev->class_dev;
179 int __init atm_sysfs_init(void)
181 return class_register(&atm_class);
184 void __exit atm_sysfs_exit(void)
186 class_unregister(&atm_class);