1 files changed, 125 insertions, 0 deletions

diff --git a/drivers/ide/ide-sysfs.c b/drivers/ide/ide-sysfs.c
new file mode 100644
index 000000000000..883ffacaf45a
--- /dev/null
+++ b/drivers/ide/ide-sysfs.c
@@ -0,0 +1,125 @@
+#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 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 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 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 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 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]);
+}
+
+struct device_attribute ide_dev_attrs[] = {
+        __ATTR_RO(media),
+        __ATTR_RO(drivename),
+        __ATTR_RO(modalias),
+        __ATTR_RO(model),
+        __ATTR_RO(firmware),
+        __ATTR(serial, 0400, serial_show, NULL),
+        __ATTR(unload_heads, 0644, ide_park_show, ide_park_store),
+        __ATTR_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;
+}