ChangeSet 1.2065.3.12, 2005/03/12 08:23:53-08:00, [EMAIL PROTECTED]
[PATCH] pcmcia: rsrc_nonstatic: sysfs output
Add sysfs output to the non-static resource database. It'll reside in
/sys/class/pcmcia_socket/pcmcia_socket%n/available_resources_{io_mem}
and be
of the format
"0x%08lx - 0x%08lx\n"
Signed-off-by: Dominik Brodowski <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
rsrc_nonstatic.c | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 107 insertions(+)
diff -Nru a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
--- a/drivers/pcmcia/rsrc_nonstatic.c 2005-03-12 21:27:02 -08:00
+++ b/drivers/pcmcia/rsrc_nonstatic.c 2005-03-12 21:27:02 -08:00
@@ -24,6 +24,8 @@
#include <linux/ioport.h>
#include <linux/timer.h>
#include <linux/pci.h>
+#include <linux/device.h>
+
#include <asm/irq.h>
#include <asm/io.h>
@@ -816,3 +818,108 @@
.exit = nonstatic_release_resource_db,
};
EXPORT_SYMBOL(pccard_nonstatic_ops);
+
+
+/* sysfs interface to the resource database */
+
+static ssize_t show_io_db(struct class_device *class_dev, char *buf)
+{
+ struct pcmcia_socket *s = class_get_devdata(class_dev);
+ struct socket_data *data;
+ struct resource_map *p;
+ ssize_t ret = 0;
+
+ down(&rsrc_sem);
+ data = s->resource_data;
+
+ for (p = data->io_db.next; p != &data->io_db; p = p->next) {
+ if (ret > (PAGE_SIZE - 10))
+ continue;
+ ret += snprintf (&buf[ret], (PAGE_SIZE - ret - 1),
+ "0x%08lx - 0x%08lx\n",
+ ((unsigned long) p->base),
+ ((unsigned long) p->base + p->num - 1));
+ }
+
+ up(&rsrc_sem);
+ return (ret);
+}
+static CLASS_DEVICE_ATTR(available_resources_io, 0400, show_io_db, NULL);
+
+static ssize_t show_mem_db(struct class_device *class_dev, char *buf)
+{
+ struct pcmcia_socket *s = class_get_devdata(class_dev);
+ struct socket_data *data;
+ struct resource_map *p;
+ ssize_t ret = 0;
+
+ down(&rsrc_sem);
+ data = s->resource_data;
+
+ for (p = data->mem_db.next; p != &data->mem_db; p = p->next) {
+ if (ret > (PAGE_SIZE - 10))
+ continue;
+ ret += snprintf (&buf[ret], (PAGE_SIZE - ret - 1),
+ "0x%08lx - 0x%08lx\n",
+ ((unsigned long) p->base),
+ ((unsigned long) p->base + p->num - 1));
+ }
+
+ up(&rsrc_sem);
+ return (ret);
+}
+static CLASS_DEVICE_ATTR(available_resources_mem, 0400, show_mem_db, NULL);
+
+static struct class_device_attribute *pccard_rsrc_attributes[] = {
+ &class_device_attr_available_resources_io,
+ &class_device_attr_available_resources_mem,
+ NULL,
+};
+
+static int __devinit pccard_sysfs_add_rsrc(struct class_device *class_dev)
+{
+ struct pcmcia_socket *s = class_get_devdata(class_dev);
+ struct class_device_attribute **attr;
+ int ret = 0;
+ if (s->resource_ops != &pccard_nonstatic_ops)
+ return 0;
+
+ for (attr = pccard_rsrc_attributes; *attr; attr++) {
+ ret = class_device_create_file(class_dev, *attr);
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+
+static void __devexit pccard_sysfs_remove_rsrc(struct class_device *class_dev)
+{
+ struct pcmcia_socket *s = class_get_devdata(class_dev);
+ struct class_device_attribute **attr;
+
+ if (s->resource_ops != &pccard_nonstatic_ops)
+ return;
+
+ for (attr = pccard_rsrc_attributes; *attr; attr++)
+ class_device_remove_file(class_dev, *attr);
+}
+
+static struct class_interface pccard_rsrc_interface = {
+ .class = &pcmcia_socket_class,
+ .add = &pccard_sysfs_add_rsrc,
+ .remove = __devexit_p(&pccard_sysfs_remove_rsrc),
+};
+
+static int __init nonstatic_sysfs_init(void)
+{
+ return class_interface_register(&pccard_rsrc_interface);
+}
+
+static void __exit nonstatic_sysfs_exit(void)
+{
+ class_interface_unregister(&pccard_rsrc_interface);
+}
+
+module_init(nonstatic_sysfs_init);
+module_exit(nonstatic_sysfs_exit);
-
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