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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/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 | |
36 | static 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 | } |
47 | static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL); |
48 | |
49 | static 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 | } |
61 | static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL); |
62 | |
63 | static 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 | } |
71 | static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL); |
72 | |
73 | static 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 | } |
81 | static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL); |
82 | |
83 | |
84 | static 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 | } |
96 | static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); |
97 | |
98 | |
99 | static 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 | |
107 | static 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 | } |
128 | static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state); |
129 | |
130 | static 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 | } |
143 | static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); |
144 | |
145 | |
146 | static 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 | |
154 | static 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 | } |
176 | static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask); |
177 | |
178 | |
179 | static 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 | |
186 | static 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 | } |
204 | static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); |
205 | |
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, |
216 | NULL, |
217 | }; |
218 | |
219 | static const struct attribute_group socket_attrs = { |
220 | .attrs = pccard_socket_attributes, |
221 | }; |
222 | |
223 | int pccard_sysfs_add_socket(struct device *dev) |
224 | { |
225 | return sysfs_create_group(&dev->kobj, &socket_attrs); |
226 | } |
227 | |
228 | void pccard_sysfs_remove_socket(struct device *dev) |
229 | { |
230 | sysfs_remove_group(&dev->kobj, &socket_attrs); |
231 | } |
232 |
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