2 * socket_sysfs.c -- most of socket-related sysfs output
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.
8 * (C) 2003 - 2004 Dominik Brodowski
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/slab.h>
20 #include <linux/interrupt.h>
21 #include <linux/timer.h>
22 #include <linux/ioport.h>
23 #include <linux/delay.h>
25 #include <linux/device.h>
26 #include <linux/mutex.h>
27 #include <asm/system.h>
30 #include <pcmcia/cs_types.h>
31 #include <pcmcia/ss.h>
32 #include <pcmcia/cs.h>
33 #include <pcmcia/cistpl.h>
34 #include <pcmcia/cisreg.h>
35 #include <pcmcia/ds.h>
36 #include "cs_internal.h"
38 #define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
40 static ssize_t
pccard_show_type(struct device
*dev
, struct device_attribute
*attr
,
43 struct pcmcia_socket
*s
= to_socket(dev
);
45 if (!(s
->state
& SOCKET_PRESENT
))
47 if (s
->state
& SOCKET_CARDBUS
)
48 return sprintf(buf
, "32-bit\n");
49 return sprintf(buf
, "16-bit\n");
51 static DEVICE_ATTR(card_type
, 0444, pccard_show_type
, NULL
);
53 static ssize_t
pccard_show_voltage(struct device
*dev
, struct device_attribute
*attr
,
56 struct pcmcia_socket
*s
= to_socket(dev
);
58 if (!(s
->state
& SOCKET_PRESENT
))
61 return sprintf(buf
, "%d.%dV\n", s
->socket
.Vcc
/ 10,
63 return sprintf(buf
, "X.XV\n");
65 static DEVICE_ATTR(card_voltage
, 0444, pccard_show_voltage
, NULL
);
67 static ssize_t
pccard_show_vpp(struct device
*dev
, struct device_attribute
*attr
,
70 struct pcmcia_socket
*s
= to_socket(dev
);
71 if (!(s
->state
& SOCKET_PRESENT
))
73 return sprintf(buf
, "%d.%dV\n", s
->socket
.Vpp
/ 10, s
->socket
.Vpp
% 10);
75 static DEVICE_ATTR(card_vpp
, 0444, pccard_show_vpp
, NULL
);
77 static ssize_t
pccard_show_vcc(struct device
*dev
, struct device_attribute
*attr
,
80 struct pcmcia_socket
*s
= to_socket(dev
);
81 if (!(s
->state
& SOCKET_PRESENT
))
83 return sprintf(buf
, "%d.%dV\n", s
->socket
.Vcc
/ 10, s
->socket
.Vcc
% 10);
85 static DEVICE_ATTR(card_vcc
, 0444, pccard_show_vcc
, NULL
);
88 static ssize_t
pccard_store_insert(struct device
*dev
, struct device_attribute
*attr
,
89 const char *buf
, size_t count
)
92 struct pcmcia_socket
*s
= to_socket(dev
);
97 ret
= pcmcia_insert_card(s
);
99 return ret
? ret
: count
;
101 static DEVICE_ATTR(card_insert
, 0200, NULL
, pccard_store_insert
);
104 static ssize_t
pccard_show_card_pm_state(struct device
*dev
,
105 struct device_attribute
*attr
,
108 struct pcmcia_socket
*s
= to_socket(dev
);
109 return sprintf(buf
, "%s\n", s
->state
& SOCKET_SUSPEND
? "off" : "on");
112 static ssize_t
pccard_store_card_pm_state(struct device
*dev
,
113 struct device_attribute
*attr
,
114 const char *buf
, size_t count
)
116 ssize_t ret
= -EINVAL
;
117 struct pcmcia_socket
*s
= to_socket(dev
);
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
);
127 return ret
? -ENODEV
: count
;
129 static DEVICE_ATTR(card_pm_state
, 0644, pccard_show_card_pm_state
, pccard_store_card_pm_state
);
131 static ssize_t
pccard_store_eject(struct device
*dev
,
132 struct device_attribute
*attr
,
133 const char *buf
, size_t count
)
136 struct pcmcia_socket
*s
= to_socket(dev
);
141 ret
= pcmcia_eject_card(s
);
143 return ret
? ret
: count
;
145 static DEVICE_ATTR(card_eject
, 0200, NULL
, pccard_store_eject
);
148 static ssize_t
pccard_show_irq_mask(struct device
*dev
,
149 struct device_attribute
*attr
,
152 struct pcmcia_socket
*s
= to_socket(dev
);
153 return sprintf(buf
, "0x%04x\n", s
->irq_mask
);
156 static ssize_t
pccard_store_irq_mask(struct device
*dev
,
157 struct device_attribute
*attr
,
158 const char *buf
, size_t count
)
161 struct pcmcia_socket
*s
= to_socket(dev
);
167 ret
= sscanf(buf
, "0x%x\n", &mask
);
174 return ret
? ret
: count
;
176 static DEVICE_ATTR(card_irq_mask
, 0600, pccard_show_irq_mask
, pccard_store_irq_mask
);
179 static ssize_t
pccard_show_resource(struct device
*dev
,
180 struct device_attribute
*attr
, char *buf
)
182 struct pcmcia_socket
*s
= to_socket(dev
);
183 return sprintf(buf
, "%s\n", s
->resource_setup_done
? "yes" : "no");
186 static ssize_t
pccard_store_resource(struct device
*dev
,
187 struct device_attribute
*attr
,
188 const char *buf
, size_t count
)
191 struct pcmcia_socket
*s
= to_socket(dev
);
196 spin_lock_irqsave(&s
->lock
, flags
);
197 if (!s
->resource_setup_done
)
198 s
->resource_setup_done
= 1;
199 spin_unlock_irqrestore(&s
->lock
, flags
);
201 mutex_lock(&s
->skt_mutex
);
203 (s
->state
& SOCKET_PRESENT
) &&
204 !(s
->state
& SOCKET_CARDBUS
)) {
205 if (try_module_get(s
->callback
->owner
)) {
206 s
->callback
->requery(s
, 0);
207 module_put(s
->callback
->owner
);
210 mutex_unlock(&s
->skt_mutex
);
214 static DEVICE_ATTR(available_resources_setup_done
, 0600, pccard_show_resource
, pccard_store_resource
);
216 static struct attribute
*pccard_socket_attributes
[] = {
217 &dev_attr_card_type
.attr
,
218 &dev_attr_card_voltage
.attr
,
219 &dev_attr_card_vpp
.attr
,
220 &dev_attr_card_vcc
.attr
,
221 &dev_attr_card_insert
.attr
,
222 &dev_attr_card_pm_state
.attr
,
223 &dev_attr_card_eject
.attr
,
224 &dev_attr_card_irq_mask
.attr
,
225 &dev_attr_available_resources_setup_done
.attr
,
229 static const struct attribute_group socket_attrs
= {
230 .attrs
= pccard_socket_attributes
,
233 int pccard_sysfs_add_socket(struct device
*dev
)
235 return sysfs_create_group(&dev
->kobj
, &socket_attrs
);
238 void pccard_sysfs_remove_socket(struct device
*dev
)
240 sysfs_remove_group(&dev
->kobj
, &socket_attrs
);