1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * standard tape device functions for ibm tapes. 4 * 5 * Copyright IBM Corp. 2001, 2006 6 * 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_H 12#define _TAPE_STD_H 13 14#include <asm/tape390.h> 15 16/* 17 * Biggest block size to handle. Currently 64K because we only build 18 * channel programs without data chaining. 19 */ 20#define MAX_BLOCKSIZE 65535 21 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 0x80 75#define SENSE_INTERVENTION_REQUIRED 0x40 76#define SENSE_BUS_OUT_CHECK 0x20 77#define SENSE_EQUIPMENT_CHECK 0x10 78#define SENSE_DATA_CHECK 0x08 79#define SENSE_OVERRUN 0x04 80#define SENSE_DEFERRED_UNIT_CHECK 0x02 81#define SENSE_ASSIGNED_ELSEWHERE 0x01 82 83#define SENSE_LOCATE_FAILURE 0x80 84#define SENSE_DRIVE_ONLINE 0x40 85#define SENSE_RESERVED 0x20 86#define SENSE_RECORD_SEQUENCE_ERR 0x10 87#define SENSE_BEGINNING_OF_TAPE 0x08 88#define SENSE_WRITE_MODE 0x04 89#define SENSE_WRITE_PROTECT 0x02 90#define SENSE_NOT_CAPABLE 0x01 91 92#define SENSE_CHANNEL_ADAPTER_CODE 0xE0 93#define SENSE_CHANNEL_ADAPTER_LOC 0x10 94#define SENSE_REPORTING_CU 0x08 95#define SENSE_AUTOMATIC_LOADER 0x04 96#define SENSE_TAPE_SYNC_MODE 0x02 97#define SENSE_TAPE_POSITIONING 0x01 98 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_H 144