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Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

[/] [or1k_soc_on_altera_embedded_dev_kit/] [tags/] [linux-2.6/] [linux-2.6.24_or32_unified_v2.3/] [net/] [atm/] [atm_sysfs.c] - Blame information for rev 3

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Line No. Rev Author Line
1 3 xianfeng 
/* ATM driver model support. */
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3 
#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/kobject.h>
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#include <linux/atmdev.h>
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#include "common.h"
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#include "resources.h"
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#define to_atm_dev(cldev) container_of(cldev, struct atm_dev, class_dev)
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static ssize_t show_type(struct class_device *cdev, char *buf)
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{
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        struct atm_dev *adev = to_atm_dev(cdev);
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        return sprintf(buf, "%s\n", adev->type);
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}
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static ssize_t show_address(struct class_device *cdev, char *buf)
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{
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        char *pos = buf;
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        struct atm_dev *adev = to_atm_dev(cdev);
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        int i;
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        for (i = 0; i < (ESI_LEN - 1); i++)
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                pos += sprintf(pos, "%02x:", adev->esi[i]);
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        pos += sprintf(pos, "%02x\n", adev->esi[i]);
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        return pos - buf;
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}
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static ssize_t show_atmaddress(struct class_device *cdev, char *buf)
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{
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        unsigned long flags;
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        char *pos = buf;
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        struct atm_dev *adev = to_atm_dev(cdev);
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        struct atm_dev_addr *aaddr;
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        int bin[] = { 1, 2, 10, 6, 1 }, *fmt = bin;
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        int i, j;
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        spin_lock_irqsave(&adev->lock, flags);
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        list_for_each_entry(aaddr, &adev->local, entry) {
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                for(i = 0, j = 0; i < ATM_ESA_LEN; ++i, ++j) {
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                        if (j == *fmt) {
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                                pos += sprintf(pos, ".");
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                                ++fmt;
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                                j = 0;
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                        }
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                        pos += sprintf(pos, "%02x", aaddr->addr.sas_addr.prv[i]);
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                }
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                pos += sprintf(pos, "\n");
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        }
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        spin_unlock_irqrestore(&adev->lock, flags);
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        return pos - buf;
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}
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static ssize_t show_carrier(struct class_device *cdev, char *buf)
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{
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        char *pos = buf;
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        struct atm_dev *adev = to_atm_dev(cdev);
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62 
        pos += sprintf(pos, "%d\n",
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                       adev->signal == ATM_PHY_SIG_LOST ? 0 : 1);
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        return pos - buf;
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}
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static ssize_t show_link_rate(struct class_device *cdev, char *buf)
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{
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        char *pos = buf;
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        struct atm_dev *adev = to_atm_dev(cdev);
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        int link_rate;
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        /* show the link rate, not the data rate */
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        switch (adev->link_rate) {
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                case ATM_OC3_PCR:
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                        link_rate = 155520000;
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                        break;
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                case ATM_OC12_PCR:
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                        link_rate = 622080000;
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                        break;
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                case ATM_25_PCR:
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                        link_rate = 25600000;
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                        break;
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                default:
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                        link_rate = adev->link_rate * 8 * 53;
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        }
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        pos += sprintf(pos, "%d\n", link_rate);
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        return pos - buf;
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}
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static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
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static CLASS_DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL);
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static CLASS_DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL);
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static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
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static CLASS_DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);
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static struct class_device_attribute *atm_attrs[] = {
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        &class_device_attr_atmaddress,
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        &class_device_attr_address,
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        &class_device_attr_carrier,
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        &class_device_attr_type,
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        &class_device_attr_link_rate,
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        NULL
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};
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static int atm_uevent(struct class_device *cdev, struct kobj_uevent_env *env)
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{
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        struct atm_dev *adev;
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        if (!cdev)
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                return -ENODEV;
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        adev = to_atm_dev(cdev);
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        if (!adev)
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                return -ENODEV;
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        if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number))
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                return -ENOMEM;
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        return 0;
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}
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static void atm_release(struct class_device *cdev)
126 
{
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        struct atm_dev *adev = to_atm_dev(cdev);
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        kfree(adev);
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}
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132 
static struct class atm_class = {
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        .name           = "atm",
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        .release        = atm_release,
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        .uevent         = atm_uevent,
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};
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138 
int atm_register_sysfs(struct atm_dev *adev)
139 
{
140 
        struct class_device *cdev = &adev->class_dev;
141 
        int i, j, err;
142 
 
143 
        cdev->class = &atm_class;
144 
        class_set_devdata(cdev, adev);
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146 
        snprintf(cdev->class_id, BUS_ID_SIZE, "%s%d", adev->type, adev->number);
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        err = class_device_register(cdev);
148 
        if (err < 0)
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                return err;
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151 
        for (i = 0; atm_attrs[i]; i++) {
152 
                err = class_device_create_file(cdev, atm_attrs[i]);
153 
                if (err)
154 
                        goto err_out;
155 
        }
156 
 
157 
        return 0;
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159 
err_out:
160 
        for (j = 0; j < i; j++)
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                class_device_remove_file(cdev, atm_attrs[j]);
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        class_device_del(cdev);
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        return err;
164 
}
165 
 
166 
void atm_unregister_sysfs(struct atm_dev *adev)
167 
{
168 
        struct class_device *cdev = &adev->class_dev;
169 
 
170 
        class_device_del(cdev);
171 
}
172 
 
173 
int __init atm_sysfs_init(void)
174 
{
175 
        return class_register(&atm_class);
176 
}
177 
 
178 
void __exit atm_sysfs_exit(void)
179 
{
180 
        class_unregister(&atm_class);
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}

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