projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 1da177e4 LT |
2 | * standard tape device functions for ibm tapes. |
| 3 | * | |
| a53c8fab | 4 | * Copyright IBM Corp. 2001, 2006 |
| 1da177e4 LT |
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 */ | |
| 99 | struct tape_request *tape_std_read_block(struct tape_device *, size_t); | |
| 100 | void tape_std_read_backward(struct tape_device *device, | |
| 101 | struct tape_request *request); | |
| 102 | struct tape_request *tape_std_write_block(struct tape_device *, size_t); | |
| 1da177e4 | 103 | void tape_std_check_locate(struct tape_device *, struct tape_request *); |
| 1da177e4 LT |
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_default_handler(struct tape_device *); | |
| 134 | void tape_std_unexpect_uchk_handler(struct tape_device *); | |
| 135 | void tape_std_irq(struct tape_device *); | |
| 136 | void tape_std_process_eov(struct tape_device *); | |
| 137 | ||
| 138 | // the error recovery stuff: | |
| 139 | void tape_std_error_recovery(struct tape_device *); | |
| 140 | void tape_std_error_recovery_has_failed(struct tape_device *,int error_id); | |
| 141 | void tape_std_error_recovery_succeded(struct tape_device *); | |
| 142 | void tape_std_error_recovery_do_retry(struct tape_device *); | |
| 143 | void tape_std_error_recovery_read_opposite(struct tape_device *); | |
| 144 | void tape_std_error_recovery_HWBUG(struct tape_device *, int condno); | |
| 145 | ||
| b6cba4ee SB |
146 | /* S390 tape types */ |
| 147 | enum s390_tape_type { | |
| 148 | tape_3480, | |
| 149 | tape_3490, | |
| 150 | tape_3590, | |
| 2cc924b8 | 151 | tape_3592, |
| b6cba4ee SB |
152 | }; |
| 153 | ||
| 1da177e4 | 154 | #endif // _TAPE_STD_H |