[mirror_ubuntu-artful-kernel.git] / net / atm / atm_sysfs.c

/* ATM driver model support. */

#include <linux/config.h>
#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 class_device *cdev, char *buf)
{
	struct atm_dev *adev = to_atm_dev(cdev);
	return sprintf(buf, "%s\n", adev->type);
}

static ssize_t show_address(struct class_device *cdev, 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 class_device *cdev, 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_carrier(struct class_device *cdev, 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 class_device *cdev, 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 CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
static CLASS_DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL);
static CLASS_DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL);
static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
static CLASS_DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);

static struct class_device_attribute *atm_attrs[] = {
	&class_device_attr_atmaddress,
	&class_device_attr_address,
	&class_device_attr_carrier,
	&class_device_attr_type,
	&class_device_attr_link_rate,
	NULL
};

static int atm_uevent(struct class_device *cdev, char **envp, int num_envp, char *buf, int size)
{
	struct atm_dev *adev;
	int i = 0, len = 0;

	if (!cdev)
		return -ENODEV;

	adev = to_atm_dev(cdev);
	if (!adev)
		return -ENODEV;

	if (add_uevent_var(envp, num_envp, &i, buf, size, &len,
			   "NAME=%s%d", adev->type, adev->number))
		return -ENOMEM;

	envp[i] = NULL;
	return 0;
}

static void atm_release(struct class_device *cdev)
{
	struct atm_dev *adev = to_atm_dev(cdev);

	kfree(adev);
}

static struct class atm_class = {
	.name		= "atm",
	.release	= atm_release,
	.uevent		= atm_uevent,
};

int atm_register_sysfs(struct atm_dev *adev)
{
	struct class_device *cdev = &adev->class_dev;
	int i, err;

	cdev->class = &atm_class;
	class_set_devdata(cdev, adev);

	snprintf(cdev->class_id, BUS_ID_SIZE, "%s%d", adev->type, adev->number);
	err = class_device_register(cdev);
	if (err < 0)
		return err;

	for (i = 0; atm_attrs[i]; i++)
		class_device_create_file(cdev, atm_attrs[i]);

	return 0;
}

void atm_unregister_sysfs(struct atm_dev *adev)
{
	struct class_device *cdev = &adev->class_dev;

	class_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. */
	2
	3	#include <linux/config.h>
	4	#include <linux/kernel.h>
	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
	13	static ssize_t show_type(struct class_device cdev, char buf)
	14	{
	15	struct atm_dev *adev = to_atm_dev(cdev);
	16	return sprintf(buf, "%s\n", adev->type);
	17	}
	18
	19	static ssize_t show_address(struct class_device cdev, char buf)
	20	{
	21	char *pos = buf;
	22	struct atm_dev *adev = to_atm_dev(cdev);
	23	int i;
	24
	25	for (i = 0; i < (ESI_LEN - 1); i++)
	26	pos += sprintf(pos, "%02x:", adev->esi[i]);
	27	pos += sprintf(pos, "%02x\n", adev->esi[i]);
	28
	29	return pos - buf;
	30	}
	31
	32	static ssize_t show_atmaddress(struct class_device cdev, char buf)
	33	{
	34	unsigned long flags;
	35	char *pos = buf;
	36	struct atm_dev *adev = to_atm_dev(cdev);
	37	struct atm_dev_addr *aaddr;
	38	int bin[] = { 1, 2, 10, 6, 1 }, *fmt = bin;
	39	int i, j;
	40
	41	spin_lock_irqsave(&adev->lock, flags);
	42	list_for_each_entry(aaddr, &adev->local, entry) {
	43	for(i = 0, j = 0; i < ATM_ESA_LEN; ++i, ++j) {
	44	if (j == *fmt) {
	45	pos += sprintf(pos, ".");
	46	++fmt;
	47	j = 0;
	48	}
	49	pos += sprintf(pos, "%02x", aaddr->addr.sas_addr.prv[i]);
	50	}
	51	pos += sprintf(pos, "\n");
	52	}
	53	spin_unlock_irqrestore(&adev->lock, flags);
	54
	55	return pos - buf;
	56	}
	57
	58	static ssize_t show_carrier(struct class_device cdev, char buf)
	59	{
	60	char *pos = buf;
	61	struct atm_dev *adev = to_atm_dev(cdev);
	62
	63	pos += sprintf(pos, "%d\n",
	64	adev->signal == ATM_PHY_SIG_LOST ? 0 : 1);
65
66	return pos - buf;
67	}
68
69	static ssize_t show_link_rate(struct class_device cdev, char buf)
70	{
71	char *pos = buf;
72	struct atm_dev *adev = to_atm_dev(cdev);
73	int link_rate;
74
75	/* show the link rate, not the data rate */
76	switch (adev->link_rate) {
77	case ATM_OC3_PCR:
78	link_rate = 155520000;
79	break;
80	case ATM_OC12_PCR:
81	link_rate = 622080000;
82	break;
83	case ATM_25_PCR:
84	link_rate = 25600000;
85	break;
86	default:
87	link_rate = adev->link_rate * 8 * 53;
88	}
89	pos += sprintf(pos, "%d\n", link_rate);
90
91	return pos - buf;
92	}
93
94	static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
95	static CLASS_DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL);
96	static CLASS_DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL);
97	static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
98	static CLASS_DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);
99
100	static struct class_device_attribute *atm_attrs[] = {
101	&class_device_attr_atmaddress,
102	&class_device_attr_address,
103	&class_device_attr_carrier,
104	&class_device_attr_type,
105	&class_device_attr_link_rate,
106	NULL
107	};
108
109	static int atm_uevent(struct class_device cdev, char envp, int num_envp, char buf, int size)
110	{
111	struct atm_dev *adev;
112	int i = 0, len = 0;
113
114	if (!cdev)
115	return -ENODEV;
116
117	adev = to_atm_dev(cdev);
118	if (!adev)
119	return -ENODEV;
120
121	if (add_uevent_var(envp, num_envp, &i, buf, size, &len,
122	"NAME=%s%d", adev->type, adev->number))
123	return -ENOMEM;
124
125	envp[i] = NULL;
126	return 0;
127	}
128
129	static void atm_release(struct class_device *cdev)
130	{
131	struct atm_dev *adev = to_atm_dev(cdev);
132
133	kfree(adev);
134	}
135
136	static struct class atm_class = {
137	.name = "atm",
138	.release = atm_release,
139	.uevent = atm_uevent,
140	};
141
142	int atm_register_sysfs(struct atm_dev *adev)
143	{
144	struct class_device *cdev = &adev->class_dev;
145	int i, err;
146
147	cdev->class = &atm_class;
148	class_set_devdata(cdev, adev);
149
150	snprintf(cdev->class_id, BUS_ID_SIZE, "%s%d", adev->type, adev->number);
151	err = class_device_register(cdev);
152	if (err < 0)
153	return err;
154
155	for (i = 0; atm_attrs[i]; i++)
156	class_device_create_file(cdev, atm_attrs[i]);
157
158	return 0;
159	}
160
161	void atm_unregister_sysfs(struct atm_dev *adev)
162	{
163	struct class_device *cdev = &adev->class_dev;
164
165	class_device_del(cdev);
166	}
167
168	int __init atm_sysfs_init(void)
169	{
170	return class_register(&atm_class);
171	}
172
173	void __exit atm_sysfs_exit(void)
174	{
175	class_unregister(&atm_class);
176	}