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- /*
- * Copyright (c) 2010 Willem Dijkstra
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- */
- #include <sys/types.h>
- #include <strings.h>
- #include "smart.h"
- /*
- * smart_values are rewritten to a smart_report here. This function is reused
- * across all platforms, as smart_values is the form the disks report the data
- * back in.
- */
- void
- smart_parse(struct smart_values *ds, struct smart_report *sr)
- {
- int i;
- bzero(sr, sizeof(struct smart_report));
- for (i = 0; i < MAX_SMART_ATTRIBUTES; i++) {
- switch (ds->attributes[i].id) {
- case ATA_ATTRIBUTE_END:
- /* end of attribute block reached */
- return;
- break;
- case ATA_ATTRIBUTE_READ_ERROR_RATE:
- sr->read_error_rate = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_REALLOCATED_SECTOR_COUNT:
- sr->reallocated_sectors = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_SPIN_RETRY_COUNT:
- sr->spin_retries = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_AIR_FLOW_TEMPERATURE:
- sr->air_flow_temp = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_TEMPERATURE:
- sr->temperature = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_REALLOCATION_EVENT_COUNT:
- sr->reallocations = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_CURRENT_PENDING_SECTOR_COUNT:
- sr->current_pending = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_UNCORRECTABLE_SECTOR_COUNT:
- sr->uncorrectables = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_SOFT_READ_ERROR_RATE:
- sr->soft_read_error_rate = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_G_SENSE_ERROR_RATE:
- sr->g_sense_error_rate = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_TEMPERATURE2:
- sr->temperature2 = ds->attributes[i].current;
- break;
- case ATA_ATTRIBUTE_FREE_FALL_PROTECTION:
- sr->free_fall_protection = ds->attributes[i].current;
- break;
- }
- }
- }
- /*
- * The return value of the smart read values is encoded in the ata
- * cylinder register. This function hides that magic and is used by
- * those operating systems that do not decode this data for us.
- */
- int
- smart_status(unsigned char low, unsigned char high)
- {
- unsigned const char nlow = 0x4f;
- unsigned const char nhigh = 0xc2;
- unsigned const char flow = 0xf4;
- unsigned const char fhigh = 0x2c;
- /* Check for good values */
- if ((low == nlow) && (high == nhigh))
- return 0;
- /* Check for bad values */
- if ((low == flow) && (high == fhigh))
- return 1;
- /* Values do not make sense - signal to caller */
- return 2;
- }
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