| /* ATM driver model support. */ |
| |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/kobject.h> |
| #include <linux/atmdev.h> |
| #include "common.h" |
| #include "resources.h" |
| |
| #define to_atm_dev(cldev) container_of(cldev, struct atm_dev, class_dev) |
| |
| static ssize_t show_type(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct atm_dev *adev = to_atm_dev(cdev); |
| return sprintf(buf, "%s\n", adev->type); |
| } |
| |
| static ssize_t show_address(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| char *pos = buf; |
| struct atm_dev *adev = to_atm_dev(cdev); |
| int i; |
| |
| for (i = 0; i < (ESI_LEN - 1); i++) |
| pos += sprintf(pos, "%02x:", adev->esi[i]); |
| pos += sprintf(pos, "%02x\n", adev->esi[i]); |
| |
| return pos - buf; |
| } |
| |
| static ssize_t show_atmaddress(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| unsigned long flags; |
| char *pos = buf; |
| struct atm_dev *adev = to_atm_dev(cdev); |
| struct atm_dev_addr *aaddr; |
| int bin[] = { 1, 2, 10, 6, 1 }, *fmt = bin; |
| int i, j; |
| |
| spin_lock_irqsave(&adev->lock, flags); |
| list_for_each_entry(aaddr, &adev->local, entry) { |
| for(i = 0, j = 0; i < ATM_ESA_LEN; ++i, ++j) { |
| if (j == *fmt) { |
| pos += sprintf(pos, "."); |
| ++fmt; |
| j = 0; |
| } |
| pos += sprintf(pos, "%02x", aaddr->addr.sas_addr.prv[i]); |
| } |
| pos += sprintf(pos, "\n"); |
| } |
| spin_unlock_irqrestore(&adev->lock, flags); |
| |
| return pos - buf; |
| } |
| |
| static ssize_t show_atmindex(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct atm_dev *adev = to_atm_dev(cdev); |
| |
| return sprintf(buf, "%d\n", adev->number); |
| } |
| |
| static ssize_t show_carrier(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| char *pos = buf; |
| struct atm_dev *adev = to_atm_dev(cdev); |
| |
| pos += sprintf(pos, "%d\n", |
| adev->signal == ATM_PHY_SIG_LOST ? 0 : 1); |
| |
| return pos - buf; |
| } |
| |
| static ssize_t show_link_rate(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| char *pos = buf; |
| struct atm_dev *adev = to_atm_dev(cdev); |
| int link_rate; |
| |
| /* show the link rate, not the data rate */ |
| switch (adev->link_rate) { |
| case ATM_OC3_PCR: |
| link_rate = 155520000; |
| break; |
| case ATM_OC12_PCR: |
| link_rate = 622080000; |
| break; |
| case ATM_25_PCR: |
| link_rate = 25600000; |
| break; |
| default: |
| link_rate = adev->link_rate * 8 * 53; |
| } |
| pos += sprintf(pos, "%d\n", link_rate); |
| |
| return pos - buf; |
| } |
| |
| static DEVICE_ATTR(address, S_IRUGO, show_address, NULL); |
| static DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL); |
| static DEVICE_ATTR(atmindex, S_IRUGO, show_atmindex, NULL); |
| static DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL); |
| static DEVICE_ATTR(type, S_IRUGO, show_type, NULL); |
| static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL); |
| |
| static struct device_attribute *atm_attrs[] = { |
| &dev_attr_atmaddress, |
| &dev_attr_address, |
| &dev_attr_atmindex, |
| &dev_attr_carrier, |
| &dev_attr_type, |
| &dev_attr_link_rate, |
| NULL |
| }; |
| |
| |
| static int atm_uevent(struct device *cdev, struct kobj_uevent_env *env) |
| { |
| struct atm_dev *adev; |
| |
| if (!cdev) |
| return -ENODEV; |
| |
| adev = to_atm_dev(cdev); |
| if (!adev) |
| return -ENODEV; |
| |
| if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| static void atm_release(struct device *cdev) |
| { |
| struct atm_dev *adev = to_atm_dev(cdev); |
| |
| kfree(adev); |
| } |
| |
| static struct class atm_class = { |
| .name = "atm", |
| .dev_release = atm_release, |
| .dev_uevent = atm_uevent, |
| }; |
| |
| int atm_register_sysfs(struct atm_dev *adev) |
| { |
| struct device *cdev = &adev->class_dev; |
| int i, j, err; |
| |
| cdev->class = &atm_class; |
| dev_set_drvdata(cdev, adev); |
| |
| dev_set_name(cdev, "%s%d", adev->type, adev->number); |
| err = device_register(cdev); |
| if (err < 0) |
| return err; |
| |
| for (i = 0; atm_attrs[i]; i++) { |
| err = device_create_file(cdev, atm_attrs[i]); |
| if (err) |
| goto err_out; |
| } |
| |
| return 0; |
| |
| err_out: |
| for (j = 0; j < i; j++) |
| device_remove_file(cdev, atm_attrs[j]); |
| device_del(cdev); |
| return err; |
| } |
| |
| void atm_unregister_sysfs(struct atm_dev *adev) |
| { |
| struct device *cdev = &adev->class_dev; |
| |
| device_del(cdev); |
| } |
| |
| int __init atm_sysfs_init(void) |
| { |
| return class_register(&atm_class); |
| } |
| |
| void __exit atm_sysfs_exit(void) |
| { |
| class_unregister(&atm_class); |
| } |