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/*
* SCSI Medium Changer Command
*
* Copyright (C) 2007 Mark Harvey <markh794@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _SMC_H_
#define _SMC_H_
#define LOAD 1
#define UNLOAD 0
/**
* Define for ELEMENT TYPE
*/
#define ELEMENT_ANY 0
#define ELEMENT_MEDIUM_TRANSPORT 1
#define ELEMENT_STORAGE 2
#define ELEMENT_MAP 3
#define ELEMENT_DATA_TRANSFER 4
/**
* struct slot - Virtual Library element
*
* @slot_addr: Slot address - number between 0 & 65535
* @last_addr: Last slot address where media came from
* @asc: ASC/ASCQ for this slot
* @element_type: 1 = Medium Transport, 2 = Storage, 3 = MAP, 4 = drive
* @cart_type: Type of media in this slot
* @status: Different bits used depending on element_type
* @sides: If media is single or double sided
* @barcode: Barcode of media ID
* @drive_tid: TID of DATA TRANSFER DEVICE configured at this slot address.
* @drive_lun: LUN of DATA TRANSFER DEVICE configured at this slot address.
*
* A linked list of slots describing each element within the virtual library
*/
struct slot {
struct list_head slot_siblings;
uint16_t slot_addr;
uint16_t last_addr;
uint16_t asc;
uint8_t element_type;
uint8_t cart_type;
uint8_t status;
uint8_t sides;
char barcode[11];
uint8_t drive_tid;
uint64_t drive_lun;
char volume_tag[32];
};
/**
* struct smc_info - Data structure for SMC device
* @media_home: Home directory for virtual media
* @slots: Linked list of 'slots' within the virtual library
*
*/
struct smc_info {
char *media_home;
struct list_head slots;
};
enum {
Opt_element_type, Opt_start_address,
Opt_quantity, Opt_sides, Opt_clear_slot,
Opt_address, Opt_barcode,
Opt_tid, Opt_lun,
Opt_type, Opt_dump,
Opt_media_home,
Opt_err, Opt_volumetag,
};
static match_table_t tokens = {
{Opt_element_type, "element_type=%s"},
{Opt_start_address, "start_address=%s"},
{Opt_quantity, "quantity=%s"},
{Opt_sides, "sides=%s"},
{Opt_clear_slot, "clear_slot=%s"},
{Opt_address, "address=%s"},
{Opt_barcode, "barcode=%s"},
{Opt_tid, "tid=%s"},
{Opt_lun, "lun=%s"},
{Opt_type, "type=%s"},
{Opt_dump, "dump=%s"},
{Opt_media_home, "media_home=%s"},
{Opt_volumetag, "volume_tag=%s"},
{Opt_err, NULL},
};
/**
* struct tmp_param{} -- temporary storage of param values from user
*
* As param parsing is stateless, several params need to be collected
* before we know if we are attempting to configure a slot or adding
* a number of new slots. This is just a temporary holder for all
* possible valid params before processing.
*/
struct tmp_param {
int operation;
int element_type;
int start_addr;
int quantity;
int address;
int tid;
uint64_t lun;
char barcode[20];
int sides;
int clear_slot;
char volume_tag[32];
} sv_param;
#endif // _SMC_H_
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