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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/system.h> |
27 | #include <asm/irq.h> |
28 | |
29 | #include <pcmcia/cs_types.h> |
30 | #include <pcmcia/ss.h> |
31 | #include <pcmcia/cs.h> |
32 | #include <pcmcia/cistpl.h> |
33 | #include <pcmcia/cisreg.h> |
34 | #include <pcmcia/ds.h> |
35 | #include "cs_internal.h" |
36 | |
37 | #define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev) |
38 | |
39 | static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr, |
40 | char *buf) |
41 | { |
42 | struct pcmcia_socket *s = to_socket(dev); |
43 | |
44 | if (!(s->state & SOCKET_PRESENT)) |
45 | return -ENODEV; |
46 | if (s->state & SOCKET_CARDBUS) |
47 | return sprintf(buf, "32-bit\n"); |
48 | return sprintf(buf, "16-bit\n"); |
49 | } |
50 | static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL); |
51 | |
52 | static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr, |
53 | char *buf) |
54 | { |
55 | struct pcmcia_socket *s = to_socket(dev); |
56 | |
57 | if (!(s->state & SOCKET_PRESENT)) |
58 | return -ENODEV; |
59 | if (s->socket.Vcc) |
60 | return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, |
61 | s->socket.Vcc % 10); |
62 | return sprintf(buf, "X.XV\n"); |
63 | } |
64 | static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL); |
65 | |
66 | static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr, |
67 | char *buf) |
68 | { |
69 | struct pcmcia_socket *s = to_socket(dev); |
70 | if (!(s->state & SOCKET_PRESENT)) |
71 | return -ENODEV; |
72 | return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10); |
73 | } |
74 | static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL); |
75 | |
76 | static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr, |
77 | char *buf) |
78 | { |
79 | struct pcmcia_socket *s = to_socket(dev); |
80 | if (!(s->state & SOCKET_PRESENT)) |
81 | return -ENODEV; |
82 | return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10); |
83 | } |
84 | static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL); |
85 | |
86 | |
87 | static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr, |
88 | const char *buf, size_t count) |
89 | { |
90 | struct pcmcia_socket *s = to_socket(dev); |
91 | |
92 | if (!count) |
93 | return -EINVAL; |
94 | |
95 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT); |
96 | |
97 | return count; |
98 | } |
99 | static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); |
100 | |
101 | |
102 | static ssize_t pccard_show_card_pm_state(struct device *dev, |
103 | struct device_attribute *attr, |
104 | char *buf) |
105 | { |
106 | struct pcmcia_socket *s = to_socket(dev); |
107 | return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on"); |
108 | } |
109 | |
110 | static ssize_t pccard_store_card_pm_state(struct device *dev, |
111 | struct device_attribute *attr, |
112 | const char *buf, size_t count) |
113 | { |
114 | struct pcmcia_socket *s = to_socket(dev); |
115 | ssize_t ret = count; |
116 | |
117 | if (!count) |
118 | return -EINVAL; |
119 | |
120 | if (!strncmp(buf, "off", 3)) |
121 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND); |
122 | else { |
123 | if (!strncmp(buf, "on", 2)) |
124 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME); |
125 | else |
126 | ret = -EINVAL; |
127 | } |
128 | |
129 | return ret; |
130 | } |
131 | static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state); |
132 | |
133 | static ssize_t pccard_store_eject(struct device *dev, |
134 | struct device_attribute *attr, |
135 | const char *buf, size_t count) |
136 | { |
137 | struct pcmcia_socket *s = to_socket(dev); |
138 | |
139 | if (!count) |
140 | return -EINVAL; |
141 | |
142 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT); |
143 | |
144 | return count; |
145 | } |
146 | static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); |
147 | |
148 | |
149 | static ssize_t pccard_show_irq_mask(struct device *dev, |
150 | struct device_attribute *attr, |
151 | char *buf) |
152 | { |
153 | struct pcmcia_socket *s = to_socket(dev); |
154 | return sprintf(buf, "0x%04x\n", s->irq_mask); |
155 | } |
156 | |
157 | static ssize_t pccard_store_irq_mask(struct device *dev, |
158 | struct device_attribute *attr, |
159 | const char *buf, size_t count) |
160 | { |
161 | ssize_t ret; |
162 | struct pcmcia_socket *s = to_socket(dev); |
163 | u32 mask; |
164 | |
165 | if (!count) |
166 | return -EINVAL; |
167 | |
168 | ret = sscanf(buf, "0x%x\n", &mask); |
169 | |
170 | if (ret == 1) { |
171 | mutex_lock(&s->ops_mutex); |
172 | s->irq_mask &= mask; |
173 | mutex_unlock(&s->ops_mutex); |
174 | ret = 0; |
175 | } |
176 | |
177 | return ret ? ret : count; |
178 | } |
179 | static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask); |
180 | |
181 | |
182 | static ssize_t pccard_show_resource(struct device *dev, |
183 | struct device_attribute *attr, char *buf) |
184 | { |
185 | struct pcmcia_socket *s = to_socket(dev); |
186 | return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no"); |
187 | } |
188 | |
189 | static ssize_t pccard_store_resource(struct device *dev, |
190 | struct device_attribute *attr, |
191 | const char *buf, size_t count) |
192 | { |
193 | struct pcmcia_socket *s = to_socket(dev); |
194 | |
195 | if (!count) |
196 | return -EINVAL; |
197 | |
198 | mutex_lock(&s->ops_mutex); |
199 | if (!s->resource_setup_done) |
200 | s->resource_setup_done = 1; |
201 | mutex_unlock(&s->ops_mutex); |
202 | |
203 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
204 | |
205 | return count; |
206 | } |
207 | static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); |
208 | |
209 | static struct attribute *pccard_socket_attributes[] = { |
210 | &dev_attr_card_type.attr, |
211 | &dev_attr_card_voltage.attr, |
212 | &dev_attr_card_vpp.attr, |
213 | &dev_attr_card_vcc.attr, |
214 | &dev_attr_card_insert.attr, |
215 | &dev_attr_card_pm_state.attr, |
216 | &dev_attr_card_eject.attr, |
217 | &dev_attr_card_irq_mask.attr, |
218 | &dev_attr_available_resources_setup_done.attr, |
219 | NULL, |
220 | }; |
221 | |
222 | static const struct attribute_group socket_attrs = { |
223 | .attrs = pccard_socket_attributes, |
224 | }; |
225 | |
226 | int pccard_sysfs_add_socket(struct device *dev) |
227 | { |
228 | return sysfs_create_group(&dev->kobj, &socket_attrs); |
229 | } |
230 | |
231 | void pccard_sysfs_remove_socket(struct device *dev) |
232 | { |
233 | sysfs_remove_group(&dev->kobj, &socket_attrs); |
234 | } |
235 |
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