1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
/*
* 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);
}
|
