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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * standard tape device functions for ibm tapes.4 *5 * Copyright IBM Corp. 2001, 20066 * Author(s): Carsten Otte <cotte@de.ibm.com>7 * Tuan Ngo-Anh <ngoanh@de.ibm.com>8 * Martin Schwidefsky <schwidefsky@de.ibm.com>9 */10 11#ifndef _TAPE_STD_H12#define _TAPE_STD_H13 14#include <asm/tape390.h>15 16/*17 * Biggest block size to handle. Currently 64K because we only build18 * channel programs without data chaining.19 */20#define MAX_BLOCKSIZE 6553521 22/*23 * The CCW commands for the Tape type of command.24 */25#define INVALID_00 0x00 /* Invalid cmd */26#define BACKSPACEBLOCK 0x27 /* Back Space block */27#define BACKSPACEFILE 0x2f /* Back Space file */28#define DATA_SEC_ERASE 0x97 /* Data security erase */29#define ERASE_GAP 0x17 /* Erase Gap */30#define FORSPACEBLOCK 0x37 /* Forward space block */31#define FORSPACEFILE 0x3F /* Forward Space file */32#define FORCE_STREAM_CNT 0xEB /* Forced streaming count # */33#define NOP 0x03 /* No operation */34#define READ_FORWARD 0x02 /* Read forward */35#define REWIND 0x07 /* Rewind */36#define REWIND_UNLOAD 0x0F /* Rewind and Unload */37#define SENSE 0x04 /* Sense */38#define NEW_MODE_SET 0xEB /* Guess it is Mode set */39#define WRITE_CMD 0x01 /* Write */40#define WRITETAPEMARK 0x1F /* Write Tape Mark */41 42#define ASSIGN 0xB7 /* 3420 REJECT,3480 OK */43#define CONTROL_ACCESS 0xE3 /* Set high speed */44#define DIAG_MODE_SET 0x0B /* 3420 NOP, 3480 REJECT */45#define LOAD_DISPLAY 0x9F /* 3420 REJECT,3480 OK */46#define LOCATE 0x4F /* 3420 REJ, 3480 NOP */47#define LOOP_WRITE_TO_READ 0x8B /* 3480 REJECT */48#define MODE_SET_DB 0xDB /* 3420 REJECT,3480 OK */49#define MODE_SET_C3 0xC3 /* for 3420 */50#define MODE_SET_CB 0xCB /* for 3420 */51#define MODE_SET_D3 0xD3 /* for 3420 */52#define READ_BACKWARD 0x0C /* */53#define READ_BLOCK_ID 0x22 /* 3420 REJECT,3480 OK */54#define READ_BUFFER 0x12 /* 3420 REJECT,3480 OK */55#define READ_BUFF_LOG 0x24 /* 3420 REJECT,3480 OK */56#define RELEASE 0xD4 /* 3420 NOP, 3480 REJECT */57#define REQ_TRK_IN_ERROR 0x1B /* 3420 NOP, 3480 REJECT */58#define RESERVE 0xF4 /* 3420 NOP, 3480 REJECT */59#define SENSE_GROUP_ID 0x34 /* 3420 REJECT,3480 OK */60#define SENSE_ID 0xE4 /* 3420 REJECT,3480 OK */61#define READ_DEV_CHAR 0x64 /* Read device characteristics */62#define SET_DIAGNOSE 0x4B /* 3420 NOP, 3480 REJECT */63#define SET_GROUP_ID 0xAF /* 3420 REJECT,3480 OK */64#define SET_TAPE_WRITE_IMMED 0xC3 /* for 3480 */65#define SUSPEND 0x5B /* 3420 REJ, 3480 NOP */66#define SYNC 0x43 /* Synchronize (flush buffer) */67#define UNASSIGN 0xC7 /* 3420 REJECT,3480 OK */68#define PERF_SUBSYS_FUNC 0x77 /* 3490 CMD */69#define READ_CONFIG_DATA 0xFA /* 3490 CMD */70#define READ_MESSAGE_ID 0x4E /* 3490 CMD */71#define READ_SUBSYS_DATA 0x3E /* 3490 CMD */72#define SET_INTERFACE_ID 0x73 /* 3490 CMD */73 74#define SENSE_COMMAND_REJECT 0x8075#define SENSE_INTERVENTION_REQUIRED 0x4076#define SENSE_BUS_OUT_CHECK 0x2077#define SENSE_EQUIPMENT_CHECK 0x1078#define SENSE_DATA_CHECK 0x0879#define SENSE_OVERRUN 0x0480#define SENSE_DEFERRED_UNIT_CHECK 0x0281#define SENSE_ASSIGNED_ELSEWHERE 0x0182 83#define SENSE_LOCATE_FAILURE 0x8084#define SENSE_DRIVE_ONLINE 0x4085#define SENSE_RESERVED 0x2086#define SENSE_RECORD_SEQUENCE_ERR 0x1087#define SENSE_BEGINNING_OF_TAPE 0x0888#define SENSE_WRITE_MODE 0x0489#define SENSE_WRITE_PROTECT 0x0290#define SENSE_NOT_CAPABLE 0x0191 92#define SENSE_CHANNEL_ADAPTER_CODE 0xE093#define SENSE_CHANNEL_ADAPTER_LOC 0x1094#define SENSE_REPORTING_CU 0x0895#define SENSE_AUTOMATIC_LOADER 0x0496#define SENSE_TAPE_SYNC_MODE 0x0297#define SENSE_TAPE_POSITIONING 0x0198 99/* discipline functions */100struct tape_request *tape_std_read_block(struct tape_device *, size_t);101void tape_std_read_backward(struct tape_device *device,102 struct tape_request *request);103struct tape_request *tape_std_write_block(struct tape_device *, size_t);104 105/* Some non-mtop commands. */106int tape_std_assign(struct tape_device *);107int tape_std_unassign(struct tape_device *);108int tape_std_read_block_id(struct tape_device *device, __u64 *id);109int tape_std_display(struct tape_device *, struct display_struct *disp);110int tape_std_terminate_write(struct tape_device *);111 112/* Standard magnetic tape commands. */113int tape_std_mtbsf(struct tape_device *, int);114int tape_std_mtbsfm(struct tape_device *, int);115int tape_std_mtbsr(struct tape_device *, int);116int tape_std_mtcompression(struct tape_device *, int);117int tape_std_mteom(struct tape_device *, int);118int tape_std_mterase(struct tape_device *, int);119int tape_std_mtfsf(struct tape_device *, int);120int tape_std_mtfsfm(struct tape_device *, int);121int tape_std_mtfsr(struct tape_device *, int);122int tape_std_mtload(struct tape_device *, int);123int tape_std_mtnop(struct tape_device *, int);124int tape_std_mtoffl(struct tape_device *, int);125int tape_std_mtreset(struct tape_device *, int);126int tape_std_mtreten(struct tape_device *, int);127int tape_std_mtrew(struct tape_device *, int);128int tape_std_mtsetblk(struct tape_device *, int);129int tape_std_mtunload(struct tape_device *, int);130int tape_std_mtweof(struct tape_device *, int);131 132/* Event handlers */133void tape_std_process_eov(struct tape_device *);134 135/* S390 tape types */136enum s390_tape_type {137 tape_3480,138 tape_3490,139 tape_3590,140 tape_3592,141};142 143#endif // _TAPE_STD_H144