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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _FRU_ACCESS_IMPL_H
#define _FRU_ACCESS_IMPL_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <dial.h>
#include <strings.h>
#include <libdevinfo.h>
#include <sys/systeminfo.h>
#include <sys/byteorder.h>
#include <syslog.h>
#include <errno.h>
#include <libfru.h>
#include <limits.h>
#include <fru_tag.h>
#include <fru_access.h>
/* object types */
typedef enum {CONTAINER_TYPE, SECTION_TYPE, SEGMENT_TYPE, PACKET_TYPE} object_t;
#define TABLE_SIZE 64 /* hash table size */
/* section header */
#define SECTION_HDR_TAG 0x08
#define SECTION_HDR_VER 0x0001
#define SECTION_HDR_LENGTH 0x06
#define SECTION_HDR_CRC8 0x00
#define SECTION_HDR_VER_BIT0 0x00
#define SECTION_HDR_VER_BIT1 0x01
#define READ_ONLY_SECTION 1 /* section is read-only */
#define GET_SEGMENT_DESCRIPTOR \
(BE_16(seg_layout->descriptor[1])| \
BE_16(seg_layout->descriptor[0] << 16))
#define GET_SECTION_HDR_VERSION \
(sec_hdr.headerversion[1]|sec_hdr.headerversion[0] << 8)
/* Segment Trailer Tag */
#define SEG_TRAILER_TAG 0x0C
/* defines fixed segment */
#define SEGMENT_FIXED 1
typedef union {
uint32_t all_bits;
struct {
unsigned read_only : 1;
unsigned unused : 8;
unsigned : 8;
unsigned : 8;
unsigned : 7;
} field;
} sectdescbit_t;
typedef enum {
ENC_STANDARD = 0, /* proper fruid data */
ENC_SPD /* serial presence detect data */
} sectencoding_t;
typedef struct {
sectdescbit_t description;
uint32_t address; /* for SEEPROMS this is the offset */
uint32_t size;
sectencoding_t encoding;
} sectioninfo_t;
typedef uint16_t headerrev_t;
#define MAX_NUMOF_SECTION 2
typedef struct {
headerrev_t header_ver;
int num_sections;
sectioninfo_t section_info[MAX_NUMOF_SECTION];
} container_info_t;
/* section header layout */
typedef struct {
uint8_t headertag; /* section header tag */
uint8_t headerversion[2]; /* header version (msb) */
uint8_t headerlength; /* header length */
uint8_t headercrc8; /* crc8 */
uint8_t segmentcount; /* total number of segment */
} section_layout_t;
/* segment header layout */
typedef struct {
uint16_t name; /* segment name */
uint16_t descriptor[2]; /* descriptor (msb) */
uint16_t offset; /* segment data offset */
uint16_t length; /* segment length */
} segment_layout_t;
/* segment information used in finding new offset for a new segment */
typedef struct {
int segnum; /* segment number */
int offset; /* segment offset */
int length; /* segment length */
int fixed; /* fixed or non-fixed segment */
} seg_info_t;
typedef uint64_t handle_t;
struct hash_obj;
/* packet hash object */
typedef struct {
handle_t segment_hdl; /* segment handle */
fru_tag_t tag;
int tag_size;
uint8_t *payload;
uint32_t paylen;
uint32_t payload_offset;
struct hash_obj *next;
} packet_obj_t;
/* segment hash object */
typedef struct {
handle_t section_hdl; /* section handle */
int num_of_packets; /* in a segment */
int trailer_offset;
segment_t segment;
struct hash_obj *pkt_obj_list; /* packet object list */
struct hash_obj *next;
} segment_obj_t;
/* section hash object */
typedef struct {
handle_t cont_hdl; /* container handle */
section_t section;
sectencoding_t encoding; /* standard or needing interpretation */
int num_of_segment; /* in a section */
struct hash_obj *seg_obj_list; /* points to segment objects list */
struct hash_obj *next;
} section_obj_t;
/* container hash object */
typedef struct {
char device_pathname[PATH_MAX]; /* device name */
int num_of_section; /* num of section in container */
struct hash_obj *sec_obj_list; /* points to section objects list */
} container_obj_t;
/* hash object */
typedef struct hash_obj {
int object_type;
handle_t obj_hdl;
union {
container_obj_t *cont_obj;
section_obj_t *sec_obj;
segment_obj_t *seg_obj;
packet_obj_t *pkt_obj;
} u;
struct hash_obj *next;
struct hash_obj *prev;
} hash_obj_t;
unsigned char compute_crc8(unsigned char *bytes, int length);
long compute_crc32(unsigned char *bytes, int length);
long compute_checksum32(unsigned char *bytes, int length);
#ifdef __cplusplus
}
#endif
#endif /* _FRU_ACCESS_IMPL_H */
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