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

// SPDX-License-Identifier: GPL-2.0-only
/*
 * socket_sysfs.c -- most of socket-related sysfs output
 *
 * (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/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/irq.h>

#include <pcmcia/ss.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)
{
	struct pcmcia_socket *s = to_socket(dev);

	if (!count)
		return -EINVAL;

	pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);

	return 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)
{
	struct pcmcia_socket *s = to_socket(dev);
	ssize_t ret = count;

	if (!count)
		return -EINVAL;

	if (!strncmp(buf, "off", 3))
		pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
	else {
		if (!strncmp(buf, "on", 2))
			pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
		else
			ret = -EINVAL;
	}

	return ret;
}
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)
{
	struct pcmcia_socket *s = to_socket(dev);

	if (!count)
		return -EINVAL;

	pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);

	return 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);

	pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);

	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
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
1da177e4 LT	2	/*
	3	* socket_sysfs.c -- most of socket-related sysfs output
	4	*
1da177e4 LT	5	* (C) 2003 - 2004 Dominik Brodowski
	6	*/
	7
	8	#include <linux/module.h>
	9	#include <linux/moduleparam.h>
	10	#include <linux/init.h>
	11	#include <linux/kernel.h>
1da177e4 LT	12	#include <linux/string.h>
	13	#include <linux/major.h>
	14	#include <linux/errno.h>
1da177e4 LT	15	#include <linux/mm.h>
	16	#include <linux/interrupt.h>
	17	#include <linux/timer.h>
	18	#include <linux/ioport.h>
	19	#include <linux/delay.h>
	20	#include <linux/pm.h>
1da177e4	21	#include <linux/device.h>
7fe908dd	22	#include <linux/mutex.h>
1da177e4 LT	23	#include <asm/irq.h>
1da177e4 LT	24
1da177e4	25	#include <pcmcia/ss.h>
1da177e4 LT	26	#include <pcmcia/cistpl.h>
	27	#include <pcmcia/cisreg.h>
	28	#include <pcmcia/ds.h>
	29	#include "cs_internal.h"
	30
	31	#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
	32
87373318 GKH	33	static ssize_t pccard_show_type(struct device dev, struct device_attribute attr,
87373318 GKH	34	char *buf)
1da177e4	35	{
1da177e4 LT	36	struct pcmcia_socket *s = to_socket(dev);
	37
	38	if (!(s->state & SOCKET_PRESENT))
	39	return -ENODEV;
002dbb2d	40	if (s->state & SOCKET_CARDBUS)
1da177e4	41	return sprintf(buf, "32-bit\n");
002dbb2d	42	return sprintf(buf, "16-bit\n");
1da177e4	43	}
87373318	44	static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
1da177e4	45
87373318 GKH	46	static ssize_t pccard_show_voltage(struct device dev, struct device_attribute attr,
87373318 GKH	47	char *buf)
1da177e4	48	{
1da177e4 LT	49	struct pcmcia_socket *s = to_socket(dev);
	50
	51	if (!(s->state & SOCKET_PRESENT))
	52	return -ENODEV;
002dbb2d DB	53	if (s->socket.Vcc)
	54	return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
	55	s->socket.Vcc % 10);
	56	return sprintf(buf, "X.XV\n");
1da177e4	57	}
87373318	58	static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
1da177e4	59
87373318 GKH	60	static ssize_t pccard_show_vpp(struct device dev, struct device_attribute attr,
87373318 GKH	61	char *buf)
1da177e4 LT	62	{
	63	struct pcmcia_socket *s = to_socket(dev);
	64	if (!(s->state & SOCKET_PRESENT))
	65	return -ENODEV;
	66	return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
	67	}
87373318	68	static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
1da177e4	69
87373318 GKH	70	static ssize_t pccard_show_vcc(struct device dev, struct device_attribute attr,
87373318 GKH	71	char *buf)
1da177e4 LT	72	{
	73	struct pcmcia_socket *s = to_socket(dev);
	74	if (!(s->state & SOCKET_PRESENT))
	75	return -ENODEV;
	76	return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
	77	}
87373318	78	static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
1da177e4 LT	79
1da177e4 LT	80
87373318 GKH	81	static ssize_t pccard_store_insert(struct device dev, struct device_attribute attr,
87373318 GKH	82	const char *buf, size_t count)
1da177e4	83	{
1da177e4 LT	84	struct pcmcia_socket *s = to_socket(dev);
	85
	86	if (!count)
	87	return -EINVAL;
	88
f971dbd5	89	pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
1da177e4	90
f971dbd5	91	return count;
1da177e4	92	}
87373318	93	static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
1da177e4	94
db1019ca	95
87373318 GKH	96	static ssize_t pccard_show_card_pm_state(struct device *dev,
	97	struct device_attribute *attr,
	98	char *buf)
db1019ca DB	99	{
	100	struct pcmcia_socket *s = to_socket(dev);
	101	return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
	102	}
	103
87373318 GKH	104	static ssize_t pccard_store_card_pm_state(struct device *dev,
	105	struct device_attribute *attr,
	106	const char *buf, size_t count)
db1019ca	107	{
db1019ca	108	struct pcmcia_socket *s = to_socket(dev);
f971dbd5	109	ssize_t ret = count;
db1019ca DB	110
	111	if (!count)
	112	return -EINVAL;
	113
f971dbd5 DB	114	if (!strncmp(buf, "off", 3))
	115	pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
	116	else {
	117	if (!strncmp(buf, "on", 2))
	118	pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
	119	else
	120	ret = -EINVAL;
	121	}
db1019ca	122
f971dbd5	123	return ret;
db1019ca	124	}
87373318	125	static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
db1019ca	126
87373318 GKH	127	static ssize_t pccard_store_eject(struct device *dev,
	128	struct device_attribute *attr,
	129	const char *buf, size_t count)
1da177e4	130	{
1da177e4 LT	131	struct pcmcia_socket *s = to_socket(dev);
	132
	133	if (!count)
	134	return -EINVAL;
	135
f971dbd5	136	pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
1da177e4	137
f971dbd5	138	return count;
1da177e4	139	}
87373318	140	static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
1da177e4 LT	141
1da177e4 LT	142
87373318 GKH	143	static ssize_t pccard_show_irq_mask(struct device *dev,
	144	struct device_attribute *attr,
	145	char *buf)
1da177e4 LT	146	{
	147	struct pcmcia_socket *s = to_socket(dev);
	148	return sprintf(buf, "0x%04x\n", s->irq_mask);
	149	}
	150
87373318 GKH	151	static ssize_t pccard_store_irq_mask(struct device *dev,
	152	struct device_attribute *attr,
	153	const char *buf, size_t count)
1da177e4 LT	154	{
	155	ssize_t ret;
	156	struct pcmcia_socket *s = to_socket(dev);
	157	u32 mask;
	158
	159	if (!count)
	160	return -EINVAL;
	161
9fea84f4	162	ret = sscanf(buf, "0x%x\n", &mask);
1da177e4 LT	163
1da177e4 LT	164	if (ret == 1) {
64d8d46f	165	mutex_lock(&s->ops_mutex);
1da177e4	166	s->irq_mask &= mask;
64d8d46f	167	mutex_unlock(&s->ops_mutex);
1da177e4 LT	168	ret = 0;
	169	}
	170
	171	return ret ? ret : count;
	172	}
87373318	173	static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
1da177e4 LT	174
1da177e4 LT	175
87373318 GKH	176	static ssize_t pccard_show_resource(struct device *dev,
87373318 GKH	177	struct device_attribute attr, char buf)
1da177e4 LT	178	{
	179	struct pcmcia_socket *s = to_socket(dev);
	180	return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
	181	}
	182
87373318 GKH	183	static ssize_t pccard_store_resource(struct device *dev,
	184	struct device_attribute *attr,
	185	const char *buf, size_t count)
1da177e4	186	{
1da177e4 LT	187	struct pcmcia_socket *s = to_socket(dev);
	188
	189	if (!count)
	190	return -EINVAL;
	191
00ce99ff	192	mutex_lock(&s->ops_mutex);
e2f0b534	193	if (!s->resource_setup_done)
1da177e4	194	s->resource_setup_done = 1;
00ce99ff	195	mutex_unlock(&s->ops_mutex);
1da177e4	196
af461fc1	197	pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
1da177e4 LT	198
	199	return count;
	200	}
87373318	201	static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
1da177e4	202
4356d73d DB	203	static struct attribute *pccard_socket_attributes[] = {
	204	&dev_attr_card_type.attr,
	205	&dev_attr_card_voltage.attr,
	206	&dev_attr_card_vpp.attr,
	207	&dev_attr_card_vcc.attr,
	208	&dev_attr_card_insert.attr,
	209	&dev_attr_card_pm_state.attr,
	210	&dev_attr_card_eject.attr,
	211	&dev_attr_card_irq_mask.attr,
	212	&dev_attr_available_resources_setup_done.attr,
1da177e4 LT	213	NULL,
	214	};
	215
4356d73d DB	216	static const struct attribute_group socket_attrs = {
	217	.attrs = pccard_socket_attributes,
	218	};
	219
4356d73d	220	int pccard_sysfs_add_socket(struct device *dev)
1da177e4	221	{
6e7b51a7	222	return sysfs_create_group(&dev->kobj, &socket_attrs);
1da177e4 LT	223	}
1da177e4 LT	224
4356d73d	225	void pccard_sysfs_remove_socket(struct device *dev)
1da177e4	226	{
4356d73d	227	sysfs_remove_group(&dev->kobj, &socket_attrs);
1da177e4	228	}