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 */ |
100 | struct tape_request *tape_std_read_block(struct tape_device *, size_t); |
101 | void tape_std_read_backward(struct tape_device *device, |
102 | struct tape_request *request); |
103 | struct tape_request *tape_std_write_block(struct tape_device *, size_t); |
104 | |
105 | /* Some non-mtop commands. */ |
106 | int tape_std_assign(struct tape_device *); |
107 | int tape_std_unassign(struct tape_device *); |
108 | int tape_std_read_block_id(struct tape_device *device, __u64 *id); |
109 | int tape_std_display(struct tape_device *, struct display_struct *disp); |
110 | int tape_std_terminate_write(struct tape_device *); |
111 | |
112 | /* Standard magnetic tape commands. */ |
113 | int tape_std_mtbsf(struct tape_device *, int); |
114 | int tape_std_mtbsfm(struct tape_device *, int); |
115 | int tape_std_mtbsr(struct tape_device *, int); |
116 | int tape_std_mtcompression(struct tape_device *, int); |
117 | int tape_std_mteom(struct tape_device *, int); |
118 | int tape_std_mterase(struct tape_device *, int); |
119 | int tape_std_mtfsf(struct tape_device *, int); |
120 | int tape_std_mtfsfm(struct tape_device *, int); |
121 | int tape_std_mtfsr(struct tape_device *, int); |
122 | int tape_std_mtload(struct tape_device *, int); |
123 | int tape_std_mtnop(struct tape_device *, int); |
124 | int tape_std_mtoffl(struct tape_device *, int); |
125 | int tape_std_mtreset(struct tape_device *, int); |
126 | int tape_std_mtreten(struct tape_device *, int); |
127 | int tape_std_mtrew(struct tape_device *, int); |
128 | int tape_std_mtsetblk(struct tape_device *, int); |
129 | int tape_std_mtunload(struct tape_device *, int); |
130 | int tape_std_mtweof(struct tape_device *, int); |
131 | |
132 | /* Event handlers */ |
133 | void tape_std_process_eov(struct tape_device *); |
134 | |
135 | /* S390 tape types */ |
136 | enum s390_tape_type { |
137 | tape_3480, |
138 | tape_3490, |
139 | tape_3590, |
140 | tape_3592, |
141 | }; |
142 | |
143 | #endif // _TAPE_STD_H |
144 | |