a53c8fab3f
Remove the file name from the comment at top of many files. In most cases the file name was wrong anyway, so it's rather pointless. Also unify the IBM copyright statement. We did have a lot of sightly different statements and wanted to change them one after another whenever a file gets touched. However that never happened. Instead people start to take the old/"wrong" statements to use as a template for new files. So unify all of them in one go. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
158 lines
6 KiB
C
158 lines
6 KiB
C
/*
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* standard tape device functions for ibm tapes.
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*
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* Copyright IBM Corp. 2001, 2006
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* Author(s): Carsten Otte <cotte@de.ibm.com>
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* Tuan Ngo-Anh <ngoanh@de.ibm.com>
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* Martin Schwidefsky <schwidefsky@de.ibm.com>
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*/
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#ifndef _TAPE_STD_H
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#define _TAPE_STD_H
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#include <asm/tape390.h>
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/*
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* Biggest block size to handle. Currently 64K because we only build
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* channel programs without data chaining.
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*/
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#define MAX_BLOCKSIZE 65535
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/*
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* The CCW commands for the Tape type of command.
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*/
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#define INVALID_00 0x00 /* Invalid cmd */
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#define BACKSPACEBLOCK 0x27 /* Back Space block */
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#define BACKSPACEFILE 0x2f /* Back Space file */
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#define DATA_SEC_ERASE 0x97 /* Data security erase */
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#define ERASE_GAP 0x17 /* Erase Gap */
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#define FORSPACEBLOCK 0x37 /* Forward space block */
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#define FORSPACEFILE 0x3F /* Forward Space file */
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#define FORCE_STREAM_CNT 0xEB /* Forced streaming count # */
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#define NOP 0x03 /* No operation */
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#define READ_FORWARD 0x02 /* Read forward */
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#define REWIND 0x07 /* Rewind */
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#define REWIND_UNLOAD 0x0F /* Rewind and Unload */
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#define SENSE 0x04 /* Sense */
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#define NEW_MODE_SET 0xEB /* Guess it is Mode set */
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#define WRITE_CMD 0x01 /* Write */
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#define WRITETAPEMARK 0x1F /* Write Tape Mark */
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#define ASSIGN 0xB7 /* 3420 REJECT,3480 OK */
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#define CONTROL_ACCESS 0xE3 /* Set high speed */
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#define DIAG_MODE_SET 0x0B /* 3420 NOP, 3480 REJECT */
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#define LOAD_DISPLAY 0x9F /* 3420 REJECT,3480 OK */
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#define LOCATE 0x4F /* 3420 REJ, 3480 NOP */
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#define LOOP_WRITE_TO_READ 0x8B /* 3480 REJECT */
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#define MODE_SET_DB 0xDB /* 3420 REJECT,3480 OK */
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#define MODE_SET_C3 0xC3 /* for 3420 */
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#define MODE_SET_CB 0xCB /* for 3420 */
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#define MODE_SET_D3 0xD3 /* for 3420 */
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#define READ_BACKWARD 0x0C /* */
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#define READ_BLOCK_ID 0x22 /* 3420 REJECT,3480 OK */
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#define READ_BUFFER 0x12 /* 3420 REJECT,3480 OK */
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#define READ_BUFF_LOG 0x24 /* 3420 REJECT,3480 OK */
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#define RELEASE 0xD4 /* 3420 NOP, 3480 REJECT */
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#define REQ_TRK_IN_ERROR 0x1B /* 3420 NOP, 3480 REJECT */
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#define RESERVE 0xF4 /* 3420 NOP, 3480 REJECT */
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#define SENSE_GROUP_ID 0x34 /* 3420 REJECT,3480 OK */
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#define SENSE_ID 0xE4 /* 3420 REJECT,3480 OK */
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#define READ_DEV_CHAR 0x64 /* Read device characteristics */
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#define SET_DIAGNOSE 0x4B /* 3420 NOP, 3480 REJECT */
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#define SET_GROUP_ID 0xAF /* 3420 REJECT,3480 OK */
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#define SET_TAPE_WRITE_IMMED 0xC3 /* for 3480 */
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#define SUSPEND 0x5B /* 3420 REJ, 3480 NOP */
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#define SYNC 0x43 /* Synchronize (flush buffer) */
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#define UNASSIGN 0xC7 /* 3420 REJECT,3480 OK */
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#define PERF_SUBSYS_FUNC 0x77 /* 3490 CMD */
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#define READ_CONFIG_DATA 0xFA /* 3490 CMD */
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#define READ_MESSAGE_ID 0x4E /* 3490 CMD */
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#define READ_SUBSYS_DATA 0x3E /* 3490 CMD */
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#define SET_INTERFACE_ID 0x73 /* 3490 CMD */
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#define SENSE_COMMAND_REJECT 0x80
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#define SENSE_INTERVENTION_REQUIRED 0x40
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#define SENSE_BUS_OUT_CHECK 0x20
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#define SENSE_EQUIPMENT_CHECK 0x10
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#define SENSE_DATA_CHECK 0x08
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#define SENSE_OVERRUN 0x04
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#define SENSE_DEFERRED_UNIT_CHECK 0x02
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#define SENSE_ASSIGNED_ELSEWHERE 0x01
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#define SENSE_LOCATE_FAILURE 0x80
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#define SENSE_DRIVE_ONLINE 0x40
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#define SENSE_RESERVED 0x20
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#define SENSE_RECORD_SEQUENCE_ERR 0x10
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#define SENSE_BEGINNING_OF_TAPE 0x08
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#define SENSE_WRITE_MODE 0x04
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#define SENSE_WRITE_PROTECT 0x02
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#define SENSE_NOT_CAPABLE 0x01
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#define SENSE_CHANNEL_ADAPTER_CODE 0xE0
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#define SENSE_CHANNEL_ADAPTER_LOC 0x10
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#define SENSE_REPORTING_CU 0x08
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#define SENSE_AUTOMATIC_LOADER 0x04
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#define SENSE_TAPE_SYNC_MODE 0x02
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#define SENSE_TAPE_POSITIONING 0x01
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/* discipline functions */
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struct tape_request *tape_std_read_block(struct tape_device *, size_t);
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void tape_std_read_backward(struct tape_device *device,
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struct tape_request *request);
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struct tape_request *tape_std_write_block(struct tape_device *, size_t);
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struct tape_request *tape_std_bread(struct tape_device *, struct request *);
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void tape_std_free_bread(struct tape_request *);
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void tape_std_check_locate(struct tape_device *, struct tape_request *);
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struct tape_request *tape_std_bwrite(struct request *,
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struct tape_device *, int);
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/* Some non-mtop commands. */
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int tape_std_assign(struct tape_device *);
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int tape_std_unassign(struct tape_device *);
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int tape_std_read_block_id(struct tape_device *device, __u64 *id);
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int tape_std_display(struct tape_device *, struct display_struct *disp);
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int tape_std_terminate_write(struct tape_device *);
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/* Standard magnetic tape commands. */
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int tape_std_mtbsf(struct tape_device *, int);
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int tape_std_mtbsfm(struct tape_device *, int);
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int tape_std_mtbsr(struct tape_device *, int);
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int tape_std_mtcompression(struct tape_device *, int);
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int tape_std_mteom(struct tape_device *, int);
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int tape_std_mterase(struct tape_device *, int);
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int tape_std_mtfsf(struct tape_device *, int);
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int tape_std_mtfsfm(struct tape_device *, int);
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int tape_std_mtfsr(struct tape_device *, int);
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int tape_std_mtload(struct tape_device *, int);
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int tape_std_mtnop(struct tape_device *, int);
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int tape_std_mtoffl(struct tape_device *, int);
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int tape_std_mtreset(struct tape_device *, int);
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int tape_std_mtreten(struct tape_device *, int);
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int tape_std_mtrew(struct tape_device *, int);
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int tape_std_mtsetblk(struct tape_device *, int);
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int tape_std_mtunload(struct tape_device *, int);
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int tape_std_mtweof(struct tape_device *, int);
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/* Event handlers */
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void tape_std_default_handler(struct tape_device *);
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void tape_std_unexpect_uchk_handler(struct tape_device *);
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void tape_std_irq(struct tape_device *);
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void tape_std_process_eov(struct tape_device *);
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// the error recovery stuff:
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void tape_std_error_recovery(struct tape_device *);
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void tape_std_error_recovery_has_failed(struct tape_device *,int error_id);
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void tape_std_error_recovery_succeded(struct tape_device *);
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void tape_std_error_recovery_do_retry(struct tape_device *);
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void tape_std_error_recovery_read_opposite(struct tape_device *);
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void tape_std_error_recovery_HWBUG(struct tape_device *, int condno);
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/* S390 tape types */
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enum s390_tape_type {
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tape_3480,
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tape_3490,
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tape_3590,
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tape_3592,
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};
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#endif // _TAPE_STD_H
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