[linux.git] / net / atm / atm_sysfs.c

/* ATM driver model support. */

#include <linux/kernel.h>
#include <linux/slab.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 *parent)
{
	struct device *cdev = &adev->class_dev;
	int i, j, err;

	cdev->class = &atm_class;
	cdev->parent = parent;
	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);
}
Commit	Line	Data
656d98b0 RK	1	/* ATM driver model support. */
656d98b0 RK	2
656d98b0	3	#include <linux/kernel.h>
5a0e3ad6	4	#include <linux/slab.h>
656d98b0 RK	5	#include <linux/init.h>
	6	#include <linux/kobject.h>
	7	#include <linux/atmdev.h>
	8	#include "common.h"
	9	#include "resources.h"
	10
	11	#define to_atm_dev(cldev) container_of(cldev, struct atm_dev, class_dev)
	12
ef39592f KS	13	static ssize_t show_type(struct device *cdev,
ef39592f KS	14	struct device_attribute attr, char buf)
656d98b0 RK	15	{
	16	struct atm_dev *adev = to_atm_dev(cdev);
	17	return sprintf(buf, "%s\n", adev->type);
	18	}
	19
ef39592f KS	20	static ssize_t show_address(struct device *cdev,
ef39592f KS	21	struct device_attribute attr, char buf)
656d98b0 RK	22	{
	23	char *pos = buf;
	24	struct atm_dev *adev = to_atm_dev(cdev);
	25	int i;
	26
	27	for (i = 0; i < (ESI_LEN - 1); i++)
	28	pos += sprintf(pos, "%02x:", adev->esi[i]);
	29	pos += sprintf(pos, "%02x\n", adev->esi[i]);
	30
	31	return pos - buf;
	32	}
	33
ef39592f KS	34	static ssize_t show_atmaddress(struct device *cdev,
ef39592f KS	35	struct device_attribute attr, char buf)
656d98b0	36	{
f7d57453	37	unsigned long flags;
656d98b0 RK	38	char *pos = buf;
656d98b0 RK	39	struct atm_dev *adev = to_atm_dev(cdev);
f7d57453	40	struct atm_dev_addr *aaddr;
656d98b0 RK	41	int bin[] = { 1, 2, 10, 6, 1 }, *fmt = bin;
	42	int i, j;
	43
f7d57453 YH	44	spin_lock_irqsave(&adev->lock, flags);
f7d57453 YH	45	list_for_each_entry(aaddr, &adev->local, entry) {
f0a6cb11	46	for (i = 0, j = 0; i < ATM_ESA_LEN; ++i, ++j) {
656d98b0 RK	47	if (j == *fmt) {
	48	pos += sprintf(pos, ".");
	49	++fmt;
	50	j = 0;
	51	}
f0a6cb11 JP	52	pos += sprintf(pos, "%02x",
f0a6cb11 JP	53	aaddr->addr.sas_addr.prv[i]);
656d98b0 RK	54	}
	55	pos += sprintf(pos, "\n");
	56	}
f7d57453	57	spin_unlock_irqrestore(&adev->lock, flags);
656d98b0 RK	58
	59	return pos - buf;
	60	}
	61
e7a46b4d DW	62	static ssize_t show_atmindex(struct device *cdev,
	63	struct device_attribute attr, char buf)
	64	{
	65	struct atm_dev *adev = to_atm_dev(cdev);
	66
	67	return sprintf(buf, "%d\n", adev->number);
	68	}
	69
ef39592f KS	70	static ssize_t show_carrier(struct device *cdev,
ef39592f KS	71	struct device_attribute attr, char buf)
656d98b0 RK	72	{
	73	char *pos = buf;
	74	struct atm_dev *adev = to_atm_dev(cdev);
	75
	76	pos += sprintf(pos, "%d\n",
	77	adev->signal == ATM_PHY_SIG_LOST ? 0 : 1);
f7d57453	78
656d98b0 RK	79	return pos - buf;
	80	}
	81
ef39592f KS	82	static ssize_t show_link_rate(struct device *cdev,
ef39592f KS	83	struct device_attribute attr, char buf)
656d98b0 RK	84	{
	85	char *pos = buf;
	86	struct atm_dev *adev = to_atm_dev(cdev);
	87	int link_rate;
	88
	89	/* show the link rate, not the data rate */
	90	switch (adev->link_rate) {
f0a6cb11 JP	91	case ATM_OC3_PCR:
	92	link_rate = 155520000;
	93	break;
	94	case ATM_OC12_PCR:
	95	link_rate = 622080000;
	96	break;
	97	case ATM_25_PCR:
	98	link_rate = 25600000;
	99	break;
	100	default:
	101	link_rate = adev->link_rate * 8 * 53;
656d98b0 RK	102	}
656d98b0 RK	103	pos += sprintf(pos, "%d\n", link_rate);
f7d57453	104
656d98b0 RK	105	return pos - buf;
	106	}
	107
ef39592f KS	108	static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
ef39592f KS	109	static DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL);
e7a46b4d	110	static DEVICE_ATTR(atmindex, S_IRUGO, show_atmindex, NULL);
ef39592f KS	111	static DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL);
	112	static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
	113	static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);
	114
	115	static struct device_attribute *atm_attrs[] = {
	116	&dev_attr_atmaddress,
	117	&dev_attr_address,
e7a46b4d	118	&dev_attr_atmindex,
ef39592f KS	119	&dev_attr_carrier,
	120	&dev_attr_type,
	121	&dev_attr_link_rate,
656d98b0 RK	122	NULL
	123	};
	124
ef39592f KS	125
ef39592f KS	126	static int atm_uevent(struct device cdev, struct kobj_uevent_env env)
656d98b0 RK	127	{
656d98b0 RK	128	struct atm_dev *adev;
656d98b0 RK	129
	130	if (!cdev)
	131	return -ENODEV;
	132
	133	adev = to_atm_dev(cdev);
	134	if (!adev)
	135	return -ENODEV;
	136
7eff2e7a	137	if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number))
656d98b0 RK	138	return -ENOMEM;
656d98b0 RK	139
656d98b0 RK	140	return 0;
	141	}
	142
ef39592f	143	static void atm_release(struct device *cdev)
656d98b0 RK	144	{
	145	struct atm_dev *adev = to_atm_dev(cdev);
	146
	147	kfree(adev);
	148	}
	149
	150	static struct class atm_class = {
	151	.name = "atm",
ef39592f KS	152	.dev_release = atm_release,
ef39592f KS	153	.dev_uevent = atm_uevent,
656d98b0 RK	154	};
656d98b0 RK	155
d9ca676b	156	int atm_register_sysfs(struct atm_dev adev, struct device parent)
656d98b0	157	{
ef39592f	158	struct device *cdev = &adev->class_dev;
97f80bc6	159	int i, j, err;
656d98b0 RK	160
656d98b0 RK	161	cdev->class = &atm_class;
d9ca676b	162	cdev->parent = parent;
ef39592f	163	dev_set_drvdata(cdev, adev);
656d98b0	164
fb28ad35	165	dev_set_name(cdev, "%s%d", adev->type, adev->number);
ef39592f	166	err = device_register(cdev);
656d98b0 RK	167	if (err < 0)
	168	return err;
	169
97f80bc6	170	for (i = 0; atm_attrs[i]; i++) {
ef39592f	171	err = device_create_file(cdev, atm_attrs[i]);
97f80bc6 JG	172	if (err)
	173	goto err_out;
	174	}
656d98b0 RK	175
656d98b0 RK	176	return 0;
97f80bc6 JG	177
	178	err_out:
	179	for (j = 0; j < i; j++)
ef39592f KS	180	device_remove_file(cdev, atm_attrs[j]);
ef39592f KS	181	device_del(cdev);
97f80bc6	182	return err;
656d98b0 RK	183	}
	184
	185	void atm_unregister_sysfs(struct atm_dev *adev)
	186	{
ef39592f	187	struct device *cdev = &adev->class_dev;
656d98b0	188
ef39592f	189	device_del(cdev);
656d98b0 RK	190	}
	191
	192	int __init atm_sysfs_init(void)
	193	{
	194	return class_register(&atm_class);
	195	}
	196
	197	void __exit atm_sysfs_exit(void)
	198	{
	199	class_unregister(&atm_class);
	200	}