ide-sysfs.c
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#include <linux/kernel.h>
#include <linux/ide.h>
char *ide_media_string(ide_drive_t *drive)
{
switch (drive->media) {
case ide_disk:
return "disk";
case ide_cdrom:
return "cdrom";
case ide_tape:
return "tape";
case ide_floppy:
return "floppy";
case ide_optical:
return "optical";
default:
return "UNKNOWN";
}
}
static ssize_t media_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
ide_drive_t *drive = to_ide_device(dev);
return sprintf(buf, "%s\n", ide_media_string(drive));
}
static DEVICE_ATTR_RO(media);
static ssize_t drivename_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
ide_drive_t *drive = to_ide_device(dev);
return sprintf(buf, "%s\n", drive->name);
}
static DEVICE_ATTR_RO(drivename);
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
ide_drive_t *drive = to_ide_device(dev);
return sprintf(buf, "ide:m-%s\n", ide_media_string(drive));
}
static DEVICE_ATTR_RO(modalias);
static ssize_t model_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
ide_drive_t *drive = to_ide_device(dev);
return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_PROD]);
}
static DEVICE_ATTR_RO(model);
static ssize_t firmware_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
ide_drive_t *drive = to_ide_device(dev);
return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_FW_REV]);
}
static DEVICE_ATTR_RO(firmware);
static ssize_t serial_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
ide_drive_t *drive = to_ide_device(dev);
return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_SERNO]);
}
static DEVICE_ATTR(serial, 0400, serial_show, NULL);
static DEVICE_ATTR(unload_heads, 0644, ide_park_show, ide_park_store);
static struct attribute *ide_attrs[] = {
&dev_attr_media.attr,
&dev_attr_drivename.attr,
&dev_attr_modalias.attr,
&dev_attr_model.attr,
&dev_attr_firmware.attr,
&dev_attr_serial.attr,
&dev_attr_unload_heads.attr,
NULL,
};
static const struct attribute_group ide_attr_group = {
.attrs = ide_attrs,
};
const struct attribute_group *ide_dev_groups[] = {
&ide_attr_group,
NULL,
};
static ssize_t store_delete_devices(struct device *portdev,
struct device_attribute *attr,
const char *buf, size_t n)
{
ide_hwif_t *hwif = dev_get_drvdata(portdev);
if (strncmp(buf, "1", n))
return -EINVAL;
ide_port_unregister_devices(hwif);
return n;
};
static DEVICE_ATTR(delete_devices, S_IWUSR, NULL, store_delete_devices);
static ssize_t store_scan(struct device *portdev,
struct device_attribute *attr,
const char *buf, size_t n)
{
ide_hwif_t *hwif = dev_get_drvdata(portdev);
if (strncmp(buf, "1", n))
return -EINVAL;
ide_port_unregister_devices(hwif);
ide_port_scan(hwif);
return n;
};
static DEVICE_ATTR(scan, S_IWUSR, NULL, store_scan);
static struct device_attribute *ide_port_attrs[] = {
&dev_attr_delete_devices,
&dev_attr_scan,
NULL
};
int ide_sysfs_register_port(ide_hwif_t *hwif)
{
int i, uninitialized_var(rc);
for (i = 0; ide_port_attrs[i]; i++) {
rc = device_create_file(hwif->portdev, ide_port_attrs[i]);
if (rc)
break;
}
return rc;
}