[linux-2.6-block.git] / drivers / pcmcia / socket_sysfs.c

/*
 * socket_sysfs.c -- most of socket-related sysfs output
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * (C) 2003 - 2004		Dominik Brodowski
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/device.h>
#include <linux/mutex.h>
#include <asm/system.h>
#include <asm/irq.h>

#include <pcmcia/cs_types.h>
#include <pcmcia/ss.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
#include "cs_internal.h"

#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)

static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr,
				char *buf)
{
	struct pcmcia_socket *s = to_socket(dev);

	if (!(s->state & SOCKET_PRESENT))
		return -ENODEV;
	if (s->state & SOCKET_CARDBUS)
		return sprintf(buf, "32-bit\n");
	return sprintf(buf, "16-bit\n");
}
static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);

static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr,
				   char *buf)
{
	struct pcmcia_socket *s = to_socket(dev);

	if (!(s->state & SOCKET_PRESENT))
		return -ENODEV;
	if (s->socket.Vcc)
		return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
			       s->socket.Vcc % 10);
	return sprintf(buf, "X.XV\n");
}
static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);

static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr,
			       char *buf)
{
	struct pcmcia_socket *s = to_socket(dev);
	if (!(s->state & SOCKET_PRESENT))
		return -ENODEV;
	return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
}
static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);

static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr,
			       char *buf)
{
	struct pcmcia_socket *s = to_socket(dev);
	if (!(s->state & SOCKET_PRESENT))
		return -ENODEV;
	return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
}
static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);


static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr,
				   const char *buf, size_t count)
{
	ssize_t ret;
	struct pcmcia_socket *s = to_socket(dev);

	if (!count)
		return -EINVAL;

	ret = pcmcia_insert_card(s);

	return ret ? ret : count;
}
static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);


static ssize_t pccard_show_card_pm_state(struct device *dev,
					 struct device_attribute *attr,
					 char *buf)
{
	struct pcmcia_socket *s = to_socket(dev);
	return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
}

static ssize_t pccard_store_card_pm_state(struct device *dev,
					  struct device_attribute *attr,
					  const char *buf, size_t count)
{
	ssize_t ret = -EINVAL;
	struct pcmcia_socket *s = to_socket(dev);

	if (!count)
		return -EINVAL;

	if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3))
		ret = pcmcia_suspend_card(s);
	else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2))
		ret = pcmcia_resume_card(s);

	return ret ? -ENODEV : count;
}
static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);

static ssize_t pccard_store_eject(struct device *dev,
				  struct device_attribute *attr,
				  const char *buf, size_t count)
{
	ssize_t ret;
	struct pcmcia_socket *s = to_socket(dev);

	if (!count)
		return -EINVAL;

	ret = pcmcia_eject_card(s);

	return ret ? ret : count;
}
static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);


static ssize_t pccard_show_irq_mask(struct device *dev,
				    struct device_attribute *attr,
				    char *buf)
{
	struct pcmcia_socket *s = to_socket(dev);
	return sprintf(buf, "0x%04x\n", s->irq_mask);
}

static ssize_t pccard_store_irq_mask(struct device *dev,
				     struct device_attribute *attr,
				     const char *buf, size_t count)
{
	ssize_t ret;
	struct pcmcia_socket *s = to_socket(dev);
	u32 mask;

	if (!count)
		return -EINVAL;

	ret = sscanf(buf, "0x%x\n", &mask);

	if (ret == 1) {
		mutex_lock(&s->ops_mutex);
		s->irq_mask &= mask;
		mutex_unlock(&s->ops_mutex);
		ret = 0;
	}

	return ret ? ret : count;
}
static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);


static ssize_t pccard_show_resource(struct device *dev,
				    struct device_attribute *attr, char *buf)
{
	struct pcmcia_socket *s = to_socket(dev);
	return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
}

static ssize_t pccard_store_resource(struct device *dev,
				     struct device_attribute *attr,
				     const char *buf, size_t count)
{
	struct pcmcia_socket *s = to_socket(dev);

	if (!count)
		return -EINVAL;

	mutex_lock(&s->ops_mutex);
	if (!s->resource_setup_done)
		s->resource_setup_done = 1;
	mutex_unlock(&s->ops_mutex);

	mutex_lock(&s->skt_mutex);
	if ((s->callback) &&
	    (s->state & SOCKET_PRESENT) &&
	    !(s->state & SOCKET_CARDBUS)) {
		if (try_module_get(s->callback->owner)) {
			s->callback->requery(s, 0);
			module_put(s->callback->owner);
		}
	}
	mutex_unlock(&s->skt_mutex);

	return count;
}
static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);

static struct attribute *pccard_socket_attributes[] = {
	&dev_attr_card_type.attr,
	&dev_attr_card_voltage.attr,
	&dev_attr_card_vpp.attr,
	&dev_attr_card_vcc.attr,
	&dev_attr_card_insert.attr,
	&dev_attr_card_pm_state.attr,
	&dev_attr_card_eject.attr,
	&dev_attr_card_irq_mask.attr,
	&dev_attr_available_resources_setup_done.attr,
	NULL,
};

static const struct attribute_group socket_attrs = {
	.attrs = pccard_socket_attributes,
};

int pccard_sysfs_add_socket(struct device *dev)
{
	return sysfs_create_group(&dev->kobj, &socket_attrs);
}

void pccard_sysfs_remove_socket(struct device *dev)
{
	sysfs_remove_group(&dev->kobj, &socket_attrs);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* socket_sysfs.c -- most of socket-related sysfs output
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 as
	6	* published by the Free Software Foundation.
	7	*
	8	* (C) 2003 - 2004 Dominik Brodowski
	9	*/
	10
	11	#include <linux/module.h>
	12	#include <linux/moduleparam.h>
	13	#include <linux/init.h>
	14	#include <linux/kernel.h>
1da177e4 LT	15	#include <linux/string.h>
	16	#include <linux/major.h>
	17	#include <linux/errno.h>
	18	#include <linux/slab.h>
	19	#include <linux/mm.h>
	20	#include <linux/interrupt.h>
	21	#include <linux/timer.h>
	22	#include <linux/ioport.h>
	23	#include <linux/delay.h>
	24	#include <linux/pm.h>
1da177e4	25	#include <linux/device.h>
7fe908dd	26	#include <linux/mutex.h>
1da177e4 LT	27	#include <asm/system.h>
	28	#include <asm/irq.h>
	29
1da177e4 LT	30	#include <pcmcia/cs_types.h>
	31	#include <pcmcia/ss.h>
	32	#include <pcmcia/cs.h>
1da177e4 LT	33	#include <pcmcia/cistpl.h>
	34	#include <pcmcia/cisreg.h>
	35	#include <pcmcia/ds.h>
	36	#include "cs_internal.h"
	37
	38	#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
	39
87373318 GKH	40	static ssize_t pccard_show_type(struct device dev, struct device_attribute attr,
87373318 GKH	41	char *buf)
1da177e4	42	{
1da177e4 LT	43	struct pcmcia_socket *s = to_socket(dev);
	44
	45	if (!(s->state & SOCKET_PRESENT))
	46	return -ENODEV;
002dbb2d	47	if (s->state & SOCKET_CARDBUS)
1da177e4	48	return sprintf(buf, "32-bit\n");
002dbb2d	49	return sprintf(buf, "16-bit\n");
1da177e4	50	}
87373318	51	static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
1da177e4	52
87373318 GKH	53	static ssize_t pccard_show_voltage(struct device dev, struct device_attribute attr,
87373318 GKH	54	char *buf)
1da177e4	55	{
1da177e4 LT	56	struct pcmcia_socket *s = to_socket(dev);
	57
	58	if (!(s->state & SOCKET_PRESENT))
	59	return -ENODEV;
002dbb2d DB	60	if (s->socket.Vcc)
	61	return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
	62	s->socket.Vcc % 10);
	63	return sprintf(buf, "X.XV\n");
1da177e4	64	}
87373318	65	static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
1da177e4	66
87373318 GKH	67	static ssize_t pccard_show_vpp(struct device dev, struct device_attribute attr,
87373318 GKH	68	char *buf)
1da177e4 LT	69	{
	70	struct pcmcia_socket *s = to_socket(dev);
	71	if (!(s->state & SOCKET_PRESENT))
	72	return -ENODEV;
	73	return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
	74	}
87373318	75	static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
1da177e4	76
87373318 GKH	77	static ssize_t pccard_show_vcc(struct device dev, struct device_attribute attr,
87373318 GKH	78	char *buf)
1da177e4 LT	79	{
	80	struct pcmcia_socket *s = to_socket(dev);
	81	if (!(s->state & SOCKET_PRESENT))
	82	return -ENODEV;
	83	return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
	84	}
87373318	85	static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
1da177e4 LT	86
1da177e4 LT	87
87373318 GKH	88	static ssize_t pccard_store_insert(struct device dev, struct device_attribute attr,
87373318 GKH	89	const char *buf, size_t count)
1da177e4 LT	90	{
	91	ssize_t ret;
	92	struct pcmcia_socket *s = to_socket(dev);
	93
	94	if (!count)
	95	return -EINVAL;
	96
	97	ret = pcmcia_insert_card(s);
	98
	99	return ret ? ret : count;
	100	}
87373318	101	static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
1da177e4	102
db1019ca	103
87373318 GKH	104	static ssize_t pccard_show_card_pm_state(struct device *dev,
	105	struct device_attribute *attr,
	106	char *buf)
db1019ca DB	107	{
	108	struct pcmcia_socket *s = to_socket(dev);
	109	return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
	110	}
	111
87373318 GKH	112	static ssize_t pccard_store_card_pm_state(struct device *dev,
	113	struct device_attribute *attr,
	114	const char *buf, size_t count)
db1019ca DB	115	{
	116	ssize_t ret = -EINVAL;
	117	struct pcmcia_socket *s = to_socket(dev);
	118
	119	if (!count)
	120	return -EINVAL;
	121
	122	if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3))
	123	ret = pcmcia_suspend_card(s);
	124	else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2))
	125	ret = pcmcia_resume_card(s);
	126
	127	return ret ? -ENODEV : count;
	128	}
87373318	129	static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
db1019ca	130
87373318 GKH	131	static ssize_t pccard_store_eject(struct device *dev,
	132	struct device_attribute *attr,
	133	const char *buf, size_t count)
1da177e4 LT	134	{
	135	ssize_t ret;
	136	struct pcmcia_socket *s = to_socket(dev);
	137
	138	if (!count)
	139	return -EINVAL;
	140
	141	ret = pcmcia_eject_card(s);
	142
	143	return ret ? ret : count;
	144	}
87373318	145	static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
1da177e4 LT	146
1da177e4 LT	147
87373318 GKH	148	static ssize_t pccard_show_irq_mask(struct device *dev,
	149	struct device_attribute *attr,
	150	char *buf)
1da177e4 LT	151	{
	152	struct pcmcia_socket *s = to_socket(dev);
	153	return sprintf(buf, "0x%04x\n", s->irq_mask);
	154	}
	155
87373318 GKH	156	static ssize_t pccard_store_irq_mask(struct device *dev,
	157	struct device_attribute *attr,
	158	const char *buf, size_t count)
1da177e4 LT	159	{
	160	ssize_t ret;
	161	struct pcmcia_socket *s = to_socket(dev);
	162	u32 mask;
	163
	164	if (!count)
	165	return -EINVAL;
	166
9fea84f4	167	ret = sscanf(buf, "0x%x\n", &mask);
1da177e4 LT	168
1da177e4 LT	169	if (ret == 1) {
64d8d46f	170	mutex_lock(&s->ops_mutex);
1da177e4	171	s->irq_mask &= mask;
64d8d46f	172	mutex_unlock(&s->ops_mutex);
1da177e4 LT	173	ret = 0;
	174	}
	175
	176	return ret ? ret : count;
	177	}
87373318	178	static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
1da177e4 LT	179
1da177e4 LT	180
87373318 GKH	181	static ssize_t pccard_show_resource(struct device *dev,
87373318 GKH	182	struct device_attribute attr, char buf)
1da177e4 LT	183	{
	184	struct pcmcia_socket *s = to_socket(dev);
	185	return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
	186	}
	187
87373318 GKH	188	static ssize_t pccard_store_resource(struct device *dev,
	189	struct device_attribute *attr,
	190	const char *buf, size_t count)
1da177e4	191	{
1da177e4 LT	192	struct pcmcia_socket *s = to_socket(dev);
	193
	194	if (!count)
	195	return -EINVAL;
	196
00ce99ff	197	mutex_lock(&s->ops_mutex);
e2f0b534	198	if (!s->resource_setup_done)
1da177e4	199	s->resource_setup_done = 1;
00ce99ff	200	mutex_unlock(&s->ops_mutex);
1da177e4	201
7fe908dd	202	mutex_lock(&s->skt_mutex);
e2f0b534 DB	203	if ((s->callback) &&
	204	(s->state & SOCKET_PRESENT) &&
	205	!(s->state & SOCKET_CARDBUS)) {
	206	if (try_module_get(s->callback->owner)) {
4ae1cbf1	207	s->callback->requery(s, 0);
e2f0b534	208	module_put(s->callback->owner);
1da177e4	209	}
1da177e4	210	}
7fe908dd	211	mutex_unlock(&s->skt_mutex);
1da177e4 LT	212
	213	return count;
	214	}
87373318	215	static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
1da177e4	216
4356d73d DB	217	static struct attribute *pccard_socket_attributes[] = {
	218	&dev_attr_card_type.attr,
	219	&dev_attr_card_voltage.attr,
	220	&dev_attr_card_vpp.attr,
	221	&dev_attr_card_vcc.attr,
	222	&dev_attr_card_insert.attr,
	223	&dev_attr_card_pm_state.attr,
	224	&dev_attr_card_eject.attr,
	225	&dev_attr_card_irq_mask.attr,
	226	&dev_attr_available_resources_setup_done.attr,
1da177e4 LT	227	NULL,
	228	};
	229
4356d73d DB	230	static const struct attribute_group socket_attrs = {
	231	.attrs = pccard_socket_attributes,
	232	};
	233
4356d73d	234	int pccard_sysfs_add_socket(struct device *dev)
1da177e4	235	{
6e7b51a7	236	return sysfs_create_group(&dev->kobj, &socket_attrs);
1da177e4 LT	237	}
1da177e4 LT	238
4356d73d	239	void pccard_sysfs_remove_socket(struct device *dev)
1da177e4	240	{
4356d73d	241	sysfs_remove_group(&dev->kobj, &socket_attrs);
1da177e4	242	}