Root/drivers/pcmcia/socket_sysfs.c

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>
15#include <linux/string.h>
16#include <linux/major.h>
17#include <linux/errno.h>
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>
24#include <linux/device.h>
25#include <linux/mutex.h>
26#include <asm/irq.h>
27
28#include <pcmcia/ss.h>
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
36static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr,
37                char *buf)
38{
39    struct pcmcia_socket *s = to_socket(dev);
40
41    if (!(s->state & SOCKET_PRESENT))
42        return -ENODEV;
43    if (s->state & SOCKET_CARDBUS)
44        return sprintf(buf, "32-bit\n");
45    return sprintf(buf, "16-bit\n");
46}
47static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
48
49static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr,
50                   char *buf)
51{
52    struct pcmcia_socket *s = to_socket(dev);
53
54    if (!(s->state & SOCKET_PRESENT))
55        return -ENODEV;
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");
60}
61static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
62
63static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr,
64                   char *buf)
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}
71static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
72
73static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr,
74                   char *buf)
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}
81static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
82
83
84static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr,
85                   const char *buf, size_t count)
86{
87    struct pcmcia_socket *s = to_socket(dev);
88
89    if (!count)
90        return -EINVAL;
91
92    pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
93
94    return count;
95}
96static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
97
98
99static ssize_t pccard_show_card_pm_state(struct device *dev,
100                     struct device_attribute *attr,
101                     char *buf)
102{
103    struct pcmcia_socket *s = to_socket(dev);
104    return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
105}
106
107static ssize_t pccard_store_card_pm_state(struct device *dev,
108                      struct device_attribute *attr,
109                      const char *buf, size_t count)
110{
111    struct pcmcia_socket *s = to_socket(dev);
112    ssize_t ret = count;
113
114    if (!count)
115        return -EINVAL;
116
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    }
125
126    return ret;
127}
128static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
129
130static ssize_t pccard_store_eject(struct device *dev,
131                  struct device_attribute *attr,
132                  const char *buf, size_t count)
133{
134    struct pcmcia_socket *s = to_socket(dev);
135
136    if (!count)
137        return -EINVAL;
138
139    pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
140
141    return count;
142}
143static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
144
145
146static ssize_t pccard_show_irq_mask(struct device *dev,
147                    struct device_attribute *attr,
148                    char *buf)
149{
150    struct pcmcia_socket *s = to_socket(dev);
151    return sprintf(buf, "0x%04x\n", s->irq_mask);
152}
153
154static ssize_t pccard_store_irq_mask(struct device *dev,
155                     struct device_attribute *attr,
156                     const char *buf, size_t count)
157{
158    ssize_t ret;
159    struct pcmcia_socket *s = to_socket(dev);
160    u32 mask;
161
162    if (!count)
163        return -EINVAL;
164
165    ret = sscanf(buf, "0x%x\n", &mask);
166
167    if (ret == 1) {
168        mutex_lock(&s->ops_mutex);
169        s->irq_mask &= mask;
170        mutex_unlock(&s->ops_mutex);
171        ret = 0;
172    }
173
174    return ret ? ret : count;
175}
176static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
177
178
179static ssize_t pccard_show_resource(struct device *dev,
180                    struct device_attribute *attr, char *buf)
181{
182    struct pcmcia_socket *s = to_socket(dev);
183    return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
184}
185
186static ssize_t pccard_store_resource(struct device *dev,
187                     struct device_attribute *attr,
188                     const char *buf, size_t count)
189{
190    struct pcmcia_socket *s = to_socket(dev);
191
192    if (!count)
193        return -EINVAL;
194
195    mutex_lock(&s->ops_mutex);
196    if (!s->resource_setup_done)
197        s->resource_setup_done = 1;
198    mutex_unlock(&s->ops_mutex);
199
200    pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
201
202    return count;
203}
204static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
205
206static 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,
216    NULL,
217};
218
219static const struct attribute_group socket_attrs = {
220    .attrs = pccard_socket_attributes,
221};
222
223int pccard_sysfs_add_socket(struct device *dev)
224{
225    return sysfs_create_group(&dev->kobj, &socket_attrs);
226}
227
228void pccard_sysfs_remove_socket(struct device *dev)
229{
230    sysfs_remove_group(&dev->kobj, &socket_attrs);
231}
232

Archive Download this file

Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master

Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9



interactive