[GitHub/mt8127/android_kernel_alcatel_ttab.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/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
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>
1da177e4 LT	18	#include <linux/mm.h>
	19	#include <linux/interrupt.h>
	20	#include <linux/timer.h>
	21	#include <linux/ioport.h>
	22	#include <linux/delay.h>
	23	#include <linux/pm.h>
1da177e4	24	#include <linux/device.h>
7fe908dd	25	#include <linux/mutex.h>
1da177e4 LT	26	#include <asm/irq.h>
1da177e4 LT	27
1da177e4	28	#include <pcmcia/ss.h>
1da177e4 LT	29	#include <pcmcia/cistpl.h>
	30	#include <pcmcia/cisreg.h>
	31	#include <pcmcia/ds.h>
	32	#include "cs_internal.h"
	33
	34	#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
	35
87373318 GKH	36	static ssize_t pccard_show_type(struct device dev, struct device_attribute attr,
87373318 GKH	37	char *buf)
1da177e4	38	{
1da177e4 LT	39	struct pcmcia_socket *s = to_socket(dev);
	40
	41	if (!(s->state & SOCKET_PRESENT))
	42	return -ENODEV;
002dbb2d	43	if (s->state & SOCKET_CARDBUS)
1da177e4	44	return sprintf(buf, "32-bit\n");
002dbb2d	45	return sprintf(buf, "16-bit\n");
1da177e4	46	}
87373318	47	static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
1da177e4	48
87373318 GKH	49	static ssize_t pccard_show_voltage(struct device dev, struct device_attribute attr,
87373318 GKH	50	char *buf)
1da177e4	51	{
1da177e4 LT	52	struct pcmcia_socket *s = to_socket(dev);
	53
	54	if (!(s->state & SOCKET_PRESENT))
	55	return -ENODEV;
002dbb2d DB	56	if (s->socket.Vcc)
	57	return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
	58	s->socket.Vcc % 10);
	59	return sprintf(buf, "X.XV\n");
1da177e4	60	}
87373318	61	static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
1da177e4	62
87373318 GKH	63	static ssize_t pccard_show_vpp(struct device dev, struct device_attribute attr,
87373318 GKH	64	char *buf)
1da177e4 LT	65	{
	66	struct pcmcia_socket *s = to_socket(dev);
	67	if (!(s->state & SOCKET_PRESENT))
	68	return -ENODEV;
	69	return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
	70	}
87373318	71	static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
1da177e4	72
87373318 GKH	73	static ssize_t pccard_show_vcc(struct device dev, struct device_attribute attr,
87373318 GKH	74	char *buf)
1da177e4 LT	75	{
	76	struct pcmcia_socket *s = to_socket(dev);
	77	if (!(s->state & SOCKET_PRESENT))
	78	return -ENODEV;
	79	return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
	80	}
87373318	81	static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
1da177e4 LT	82
1da177e4 LT	83
87373318 GKH	84	static ssize_t pccard_store_insert(struct device dev, struct device_attribute attr,
87373318 GKH	85	const char *buf, size_t count)
1da177e4	86	{
1da177e4 LT	87	struct pcmcia_socket *s = to_socket(dev);
	88
	89	if (!count)
	90	return -EINVAL;
	91
f971dbd5	92	pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
1da177e4	93
f971dbd5	94	return count;
1da177e4	95	}
87373318	96	static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
1da177e4	97
db1019ca	98
87373318 GKH	99	static ssize_t pccard_show_card_pm_state(struct device *dev,
	100	struct device_attribute *attr,
	101	char *buf)
db1019ca DB	102	{
	103	struct pcmcia_socket *s = to_socket(dev);
	104	return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
	105	}
	106
87373318 GKH	107	static ssize_t pccard_store_card_pm_state(struct device *dev,
	108	struct device_attribute *attr,
	109	const char *buf, size_t count)
db1019ca	110	{
db1019ca	111	struct pcmcia_socket *s = to_socket(dev);
f971dbd5	112	ssize_t ret = count;
db1019ca DB	113
	114	if (!count)
	115	return -EINVAL;
	116
f971dbd5 DB	117	if (!strncmp(buf, "off", 3))
	118	pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
	119	else {
	120	if (!strncmp(buf, "on", 2))
	121	pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
	122	else
	123	ret = -EINVAL;
	124	}
db1019ca	125
f971dbd5	126	return ret;
db1019ca	127	}
87373318	128	static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
db1019ca	129
87373318 GKH	130	static ssize_t pccard_store_eject(struct device *dev,
	131	struct device_attribute *attr,
	132	const char *buf, size_t count)
1da177e4	133	{
1da177e4 LT	134	struct pcmcia_socket *s = to_socket(dev);
	135
	136	if (!count)
	137	return -EINVAL;
	138
f971dbd5	139	pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
1da177e4	140
f971dbd5	141	return count;
1da177e4	142	}
87373318	143	static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
1da177e4 LT	144
1da177e4 LT	145
87373318 GKH	146	static ssize_t pccard_show_irq_mask(struct device *dev,
	147	struct device_attribute *attr,
	148	char *buf)
1da177e4 LT	149	{
	150	struct pcmcia_socket *s = to_socket(dev);
	151	return sprintf(buf, "0x%04x\n", s->irq_mask);
	152	}
	153
87373318 GKH	154	static ssize_t pccard_store_irq_mask(struct device *dev,
	155	struct device_attribute *attr,
	156	const char *buf, size_t count)
1da177e4 LT	157	{
	158	ssize_t ret;
	159	struct pcmcia_socket *s = to_socket(dev);
	160	u32 mask;
	161
	162	if (!count)
	163	return -EINVAL;
	164
9fea84f4	165	ret = sscanf(buf, "0x%x\n", &mask);
1da177e4 LT	166
1da177e4 LT	167	if (ret == 1) {
64d8d46f	168	mutex_lock(&s->ops_mutex);
1da177e4	169	s->irq_mask &= mask;
64d8d46f	170	mutex_unlock(&s->ops_mutex);
1da177e4 LT	171	ret = 0;
	172	}
	173
	174	return ret ? ret : count;
	175	}
87373318	176	static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
1da177e4 LT	177
1da177e4 LT	178
87373318 GKH	179	static ssize_t pccard_show_resource(struct device *dev,
87373318 GKH	180	struct device_attribute attr, char buf)
1da177e4 LT	181	{
	182	struct pcmcia_socket *s = to_socket(dev);
	183	return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
	184	}
	185
87373318 GKH	186	static ssize_t pccard_store_resource(struct device *dev,
	187	struct device_attribute *attr,
	188	const char *buf, size_t count)
1da177e4	189	{
1da177e4 LT	190	struct pcmcia_socket *s = to_socket(dev);
	191
	192	if (!count)
	193	return -EINVAL;
	194
00ce99ff	195	mutex_lock(&s->ops_mutex);
e2f0b534	196	if (!s->resource_setup_done)
1da177e4	197	s->resource_setup_done = 1;
00ce99ff	198	mutex_unlock(&s->ops_mutex);
1da177e4	199
af461fc1	200	pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
1da177e4 LT	201
	202	return count;
	203	}
87373318	204	static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
1da177e4	205
4356d73d DB	206	static struct attribute *pccard_socket_attributes[] = {
	207	&dev_attr_card_type.attr,
	208	&dev_attr_card_voltage.attr,
	209	&dev_attr_card_vpp.attr,
	210	&dev_attr_card_vcc.attr,
	211	&dev_attr_card_insert.attr,
	212	&dev_attr_card_pm_state.attr,
	213	&dev_attr_card_eject.attr,
	214	&dev_attr_card_irq_mask.attr,
	215	&dev_attr_available_resources_setup_done.attr,
1da177e4 LT	216	NULL,
	217	};
	218
4356d73d DB	219	static const struct attribute_group socket_attrs = {
	220	.attrs = pccard_socket_attributes,
	221	};
	222
4356d73d	223	int pccard_sysfs_add_socket(struct device *dev)
1da177e4	224	{
6e7b51a7	225	return sysfs_create_group(&dev->kobj, &socket_attrs);
1da177e4 LT	226	}
1da177e4 LT	227
4356d73d	228	void pccard_sysfs_remove_socket(struct device *dev)
1da177e4	229	{
4356d73d	230	sysfs_remove_group(&dev->kobj, &socket_attrs);
1da177e4	231	}