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1/*
2 * drivers/s390/char/tape_std.h
3 * standard tape device functions for ibm tapes.
4 *
5 * Copyright (C) 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);
104struct tape_request *tape_std_bread(struct tape_device *, struct request *);
105void tape_std_free_bread(struct tape_request *);
106void tape_std_check_locate(struct tape_device *, struct tape_request *);
107struct tape_request *tape_std_bwrite(struct request *,
108 struct tape_device *, int);
109
110/* Some non-mtop commands. */
111int tape_std_assign(struct tape_device *);
112int tape_std_unassign(struct tape_device *);
113int tape_std_read_block_id(struct tape_device *device, __u64 *id);
114int tape_std_display(struct tape_device *, struct display_struct *disp);
115int tape_std_terminate_write(struct tape_device *);
116
117/* Standard magnetic tape commands. */
118int tape_std_mtbsf(struct tape_device *, int);
119int tape_std_mtbsfm(struct tape_device *, int);
120int tape_std_mtbsr(struct tape_device *, int);
121int tape_std_mtcompression(struct tape_device *, int);
122int tape_std_mteom(struct tape_device *, int);
123int tape_std_mterase(struct tape_device *, int);
124int tape_std_mtfsf(struct tape_device *, int);
125int tape_std_mtfsfm(struct tape_device *, int);
126int tape_std_mtfsr(struct tape_device *, int);
127int tape_std_mtload(struct tape_device *, int);
128int tape_std_mtnop(struct tape_device *, int);
129int tape_std_mtoffl(struct tape_device *, int);
130int tape_std_mtreset(struct tape_device *, int);
131int tape_std_mtreten(struct tape_device *, int);
132int tape_std_mtrew(struct tape_device *, int);
133int tape_std_mtsetblk(struct tape_device *, int);
134int tape_std_mtunload(struct tape_device *, int);
135int tape_std_mtweof(struct tape_device *, int);
136
137/* Event handlers */
138void tape_std_default_handler(struct tape_device *);
139void tape_std_unexpect_uchk_handler(struct tape_device *);
140void tape_std_irq(struct tape_device *);
141void tape_std_process_eov(struct tape_device *);
142
143// the error recovery stuff:
144void tape_std_error_recovery(struct tape_device *);
145void tape_std_error_recovery_has_failed(struct tape_device *,int error_id);
146void tape_std_error_recovery_succeded(struct tape_device *);
147void tape_std_error_recovery_do_retry(struct tape_device *);
148void tape_std_error_recovery_read_opposite(struct tape_device *);
149void tape_std_error_recovery_HWBUG(struct tape_device *, int condno);
150
151/* S390 tape types */
152enum s390_tape_type {
153 tape_3480,
154 tape_3490,
155 tape_3590,
156 tape_3592,
157};
158
159#endif // _TAPE_STD_H
1/*
2 * standard tape device functions for ibm tapes.
3 *
4 * Copyright IBM Corp. 2001, 2006
5 * Author(s): Carsten Otte <cotte@de.ibm.com>
6 * Tuan Ngo-Anh <ngoanh@de.ibm.com>
7 * Martin Schwidefsky <schwidefsky@de.ibm.com>
8 */
9
10#ifndef _TAPE_STD_H
11#define _TAPE_STD_H
12
13#include <asm/tape390.h>
14
15/*
16 * Biggest block size to handle. Currently 64K because we only build
17 * channel programs without data chaining.
18 */
19#define MAX_BLOCKSIZE 65535
20
21/*
22 * The CCW commands for the Tape type of command.
23 */
24#define INVALID_00 0x00 /* Invalid cmd */
25#define BACKSPACEBLOCK 0x27 /* Back Space block */
26#define BACKSPACEFILE 0x2f /* Back Space file */
27#define DATA_SEC_ERASE 0x97 /* Data security erase */
28#define ERASE_GAP 0x17 /* Erase Gap */
29#define FORSPACEBLOCK 0x37 /* Forward space block */
30#define FORSPACEFILE 0x3F /* Forward Space file */
31#define FORCE_STREAM_CNT 0xEB /* Forced streaming count # */
32#define NOP 0x03 /* No operation */
33#define READ_FORWARD 0x02 /* Read forward */
34#define REWIND 0x07 /* Rewind */
35#define REWIND_UNLOAD 0x0F /* Rewind and Unload */
36#define SENSE 0x04 /* Sense */
37#define NEW_MODE_SET 0xEB /* Guess it is Mode set */
38#define WRITE_CMD 0x01 /* Write */
39#define WRITETAPEMARK 0x1F /* Write Tape Mark */
40
41#define ASSIGN 0xB7 /* 3420 REJECT,3480 OK */
42#define CONTROL_ACCESS 0xE3 /* Set high speed */
43#define DIAG_MODE_SET 0x0B /* 3420 NOP, 3480 REJECT */
44#define LOAD_DISPLAY 0x9F /* 3420 REJECT,3480 OK */
45#define LOCATE 0x4F /* 3420 REJ, 3480 NOP */
46#define LOOP_WRITE_TO_READ 0x8B /* 3480 REJECT */
47#define MODE_SET_DB 0xDB /* 3420 REJECT,3480 OK */
48#define MODE_SET_C3 0xC3 /* for 3420 */
49#define MODE_SET_CB 0xCB /* for 3420 */
50#define MODE_SET_D3 0xD3 /* for 3420 */
51#define READ_BACKWARD 0x0C /* */
52#define READ_BLOCK_ID 0x22 /* 3420 REJECT,3480 OK */
53#define READ_BUFFER 0x12 /* 3420 REJECT,3480 OK */
54#define READ_BUFF_LOG 0x24 /* 3420 REJECT,3480 OK */
55#define RELEASE 0xD4 /* 3420 NOP, 3480 REJECT */
56#define REQ_TRK_IN_ERROR 0x1B /* 3420 NOP, 3480 REJECT */
57#define RESERVE 0xF4 /* 3420 NOP, 3480 REJECT */
58#define SENSE_GROUP_ID 0x34 /* 3420 REJECT,3480 OK */
59#define SENSE_ID 0xE4 /* 3420 REJECT,3480 OK */
60#define READ_DEV_CHAR 0x64 /* Read device characteristics */
61#define SET_DIAGNOSE 0x4B /* 3420 NOP, 3480 REJECT */
62#define SET_GROUP_ID 0xAF /* 3420 REJECT,3480 OK */
63#define SET_TAPE_WRITE_IMMED 0xC3 /* for 3480 */
64#define SUSPEND 0x5B /* 3420 REJ, 3480 NOP */
65#define SYNC 0x43 /* Synchronize (flush buffer) */
66#define UNASSIGN 0xC7 /* 3420 REJECT,3480 OK */
67#define PERF_SUBSYS_FUNC 0x77 /* 3490 CMD */
68#define READ_CONFIG_DATA 0xFA /* 3490 CMD */
69#define READ_MESSAGE_ID 0x4E /* 3490 CMD */
70#define READ_SUBSYS_DATA 0x3E /* 3490 CMD */
71#define SET_INTERFACE_ID 0x73 /* 3490 CMD */
72
73#define SENSE_COMMAND_REJECT 0x80
74#define SENSE_INTERVENTION_REQUIRED 0x40
75#define SENSE_BUS_OUT_CHECK 0x20
76#define SENSE_EQUIPMENT_CHECK 0x10
77#define SENSE_DATA_CHECK 0x08
78#define SENSE_OVERRUN 0x04
79#define SENSE_DEFERRED_UNIT_CHECK 0x02
80#define SENSE_ASSIGNED_ELSEWHERE 0x01
81
82#define SENSE_LOCATE_FAILURE 0x80
83#define SENSE_DRIVE_ONLINE 0x40
84#define SENSE_RESERVED 0x20
85#define SENSE_RECORD_SEQUENCE_ERR 0x10
86#define SENSE_BEGINNING_OF_TAPE 0x08
87#define SENSE_WRITE_MODE 0x04
88#define SENSE_WRITE_PROTECT 0x02
89#define SENSE_NOT_CAPABLE 0x01
90
91#define SENSE_CHANNEL_ADAPTER_CODE 0xE0
92#define SENSE_CHANNEL_ADAPTER_LOC 0x10
93#define SENSE_REPORTING_CU 0x08
94#define SENSE_AUTOMATIC_LOADER 0x04
95#define SENSE_TAPE_SYNC_MODE 0x02
96#define SENSE_TAPE_POSITIONING 0x01
97
98/* discipline functions */
99struct tape_request *tape_std_read_block(struct tape_device *, size_t);
100void tape_std_read_backward(struct tape_device *device,
101 struct tape_request *request);
102struct tape_request *tape_std_write_block(struct tape_device *, size_t);
103void tape_std_check_locate(struct tape_device *, struct tape_request *);
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_default_handler(struct tape_device *);
134void tape_std_unexpect_uchk_handler(struct tape_device *);
135void tape_std_irq(struct tape_device *);
136void tape_std_process_eov(struct tape_device *);
137
138// the error recovery stuff:
139void tape_std_error_recovery(struct tape_device *);
140void tape_std_error_recovery_has_failed(struct tape_device *,int error_id);
141void tape_std_error_recovery_succeded(struct tape_device *);
142void tape_std_error_recovery_do_retry(struct tape_device *);
143void tape_std_error_recovery_read_opposite(struct tape_device *);
144void tape_std_error_recovery_HWBUG(struct tape_device *, int condno);
145
146/* S390 tape types */
147enum s390_tape_type {
148 tape_3480,
149 tape_3490,
150 tape_3590,
151 tape_3592,
152};
153
154#endif // _TAPE_STD_H