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/config.h>
16 #include <linux/string.h>
17 #include <linux/major.h>
18 #include <linux/errno.h>
19 #include <linux/slab.h>
21 #include <linux/interrupt.h>
22 #include <linux/timer.h>
23 #include <linux/ioport.h>
24 #include <linux/delay.h>
26 #include <linux/pci.h>
27 #include <linux/device.h>
28 #include <linux/mutex.h>
29 #include <asm/system.h>
32 #define IN_CARD_SERVICES
33 #include <pcmcia/cs_types.h>
34 #include <pcmcia/ss.h>
35 #include <pcmcia/cs.h>
36 #include <pcmcia/bulkmem.h>
37 #include <pcmcia/cistpl.h>
38 #include <pcmcia/cisreg.h>
39 #include <pcmcia/ds.h>
40 #include "cs_internal.h"
42 #define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
44 static ssize_t pccard_show_type(struct class_device *dev, char *buf)
46 struct pcmcia_socket *s = to_socket(dev);
48 if (!(s->state & SOCKET_PRESENT))
50 if (s->state & SOCKET_CARDBUS)
51 return sprintf(buf, "32-bit\n");
52 return sprintf(buf, "16-bit\n");
54 static CLASS_DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
56 static ssize_t pccard_show_voltage(struct class_device *dev, char *buf)
58 struct pcmcia_socket *s = to_socket(dev);
60 if (!(s->state & SOCKET_PRESENT))
63 return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
65 return sprintf(buf, "X.XV\n");
67 static CLASS_DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
69 static ssize_t pccard_show_vpp(struct class_device *dev, char *buf)
71 struct pcmcia_socket *s = to_socket(dev);
72 if (!(s->state & SOCKET_PRESENT))
74 return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
76 static CLASS_DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
78 static ssize_t pccard_show_vcc(struct class_device *dev, char *buf)
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 CLASS_DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
88 static ssize_t pccard_store_insert(struct class_device *dev, const char *buf, size_t count)
91 struct pcmcia_socket *s = to_socket(dev);
96 ret = pcmcia_insert_card(s);
98 return ret ? ret : count;
100 static CLASS_DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
103 static ssize_t pccard_show_card_pm_state(struct class_device *dev, char *buf)
105 struct pcmcia_socket *s = to_socket(dev);
106 return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
109 static ssize_t pccard_store_card_pm_state(struct class_device *dev, const char *buf, size_t count)
111 ssize_t ret = -EINVAL;
112 struct pcmcia_socket *s = to_socket(dev);
117 if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3))
118 ret = pcmcia_suspend_card(s);
119 else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2))
120 ret = pcmcia_resume_card(s);
122 return ret ? -ENODEV : count;
124 static CLASS_DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
126 static ssize_t pccard_store_eject(struct class_device *dev, const char *buf, size_t count)
129 struct pcmcia_socket *s = to_socket(dev);
134 ret = pcmcia_eject_card(s);
136 return ret ? ret : count;
138 static CLASS_DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
141 static ssize_t pccard_show_irq_mask(struct class_device *dev, char *buf)
143 struct pcmcia_socket *s = to_socket(dev);
144 return sprintf(buf, "0x%04x\n", s->irq_mask);
147 static ssize_t pccard_store_irq_mask(struct class_device *dev, const char *buf, size_t count)
150 struct pcmcia_socket *s = to_socket(dev);
156 ret = sscanf (buf, "0x%x\n", &mask);
163 return ret ? ret : count;
165 static CLASS_DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
168 static ssize_t pccard_show_resource(struct class_device *dev, char *buf)
170 struct pcmcia_socket *s = to_socket(dev);
171 return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
174 static ssize_t pccard_store_resource(struct class_device *dev, const char *buf, size_t count)
177 struct pcmcia_socket *s = to_socket(dev);
182 spin_lock_irqsave(&s->lock, flags);
183 if (!s->resource_setup_done)
184 s->resource_setup_done = 1;
185 spin_unlock_irqrestore(&s->lock, flags);
187 mutex_lock(&s->skt_mutex);
189 (s->state & SOCKET_PRESENT) &&
190 !(s->state & SOCKET_CARDBUS)) {
191 if (try_module_get(s->callback->owner)) {
192 s->callback->requery(s);
193 module_put(s->callback->owner);
196 mutex_unlock(&s->skt_mutex);
200 static CLASS_DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
203 static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count)
212 tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL);
216 tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL);
222 memset(&tuple, 0, sizeof(tuple_t));
224 tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
225 tuple.DesiredTuple = RETURN_FIRST_TUPLE;
226 tuple.TupleOffset = 0;
228 status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
230 tuple.TupleData = tuplebuffer;
231 tuple.TupleDataMax = 255;
232 memset(tuplebuffer, 0, sizeof(u_char) * 255);
234 status = pccard_get_tuple_data(s, &tuple);
238 if (off < (pointer + 2 + tuple.TupleDataLen)) {
239 tempbuffer[0] = tuple.TupleCode & 0xff;
240 tempbuffer[1] = tuple.TupleLink & 0xff;
241 for (i = 0; i < tuple.TupleDataLen; i++)
242 tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
244 for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
245 if (((i + pointer) >= off) &&
246 (i + pointer) < (off + count)) {
247 buf[ret] = tempbuffer[i];
253 pointer += 2 + tuple.TupleDataLen;
255 if (pointer >= (off + count))
258 if (tuple.TupleCode == CISTPL_END)
260 status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
270 static ssize_t pccard_show_cis(struct kobject *kobj, char *buf, loff_t off, size_t count)
272 unsigned int size = 0x200;
277 struct pcmcia_socket *s;
280 if (off + count > size)
283 s = to_socket(container_of(kobj, struct class_device, kobj));
285 if (!(s->state & SOCKET_PRESENT))
287 if (pccard_validate_cis(s, BIND_FN_ALL, &cisinfo))
292 count = pccard_extract_cis(s, buf, off, count);
298 static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, size_t count)
300 struct pcmcia_socket *s = to_socket(container_of(kobj, struct class_device, kobj));
310 if (!(s->state & SOCKET_PRESENT))
313 cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL);
317 cis->Length = count + 1;
318 memcpy(cis->Data, buf, count);
320 if (pcmcia_replace_cis(s, cis))
326 mutex_lock(&s->skt_mutex);
327 if ((s->callback) && (s->state & SOCKET_PRESENT) &&
328 !(s->state & SOCKET_CARDBUS)) {
329 if (try_module_get(s->callback->owner)) {
330 s->callback->requery(s);
331 module_put(s->callback->owner);
334 mutex_unlock(&s->skt_mutex);
342 static struct class_device_attribute *pccard_socket_attributes[] = {
343 &class_device_attr_card_type,
344 &class_device_attr_card_voltage,
345 &class_device_attr_card_vpp,
346 &class_device_attr_card_vcc,
347 &class_device_attr_card_insert,
348 &class_device_attr_card_pm_state,
349 &class_device_attr_card_eject,
350 &class_device_attr_card_irq_mask,
351 &class_device_attr_available_resources_setup_done,
355 static struct bin_attribute pccard_cis_attr = {
356 .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR, .owner = THIS_MODULE},
358 .read = pccard_show_cis,
359 .write = pccard_store_cis,
362 static int __devinit pccard_sysfs_add_socket(struct class_device *class_dev,
363 struct class_interface *class_intf)
365 struct class_device_attribute **attr;
368 for (attr = pccard_socket_attributes; *attr; attr++) {
369 ret = class_device_create_file(class_dev, *attr);
374 ret = sysfs_create_bin_file(&class_dev->kobj, &pccard_cis_attr);
379 static void __devexit pccard_sysfs_remove_socket(struct class_device *class_dev,
380 struct class_interface *class_intf)
382 struct class_device_attribute **attr;
384 sysfs_remove_bin_file(&class_dev->kobj, &pccard_cis_attr);
385 for (attr = pccard_socket_attributes; *attr; attr++)
386 class_device_remove_file(class_dev, *attr);
389 struct class_interface pccard_sysfs_interface = {
390 .class = &pcmcia_socket_class,
391 .add = &pccard_sysfs_add_socket,
392 .remove = __devexit_p(&pccard_sysfs_remove_socket),