patch-2.4.2 linux/drivers/s390/char/tape34xx.h
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- Lines: 163
- Date:
Tue Feb 13 14:13:44 2001
- Orig file:
v2.4.1/linux/drivers/s390/char/tape34xx.h
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.1/linux/drivers/s390/char/tape34xx.h linux/drivers/s390/char/tape34xx.h
@@ -0,0 +1,162 @@
+
+/***************************************************************************
+ *
+ * drivers/s390/char/tape34xx.h
+ * common tape device discipline for 34xx tapes.
+ *
+ * S390 version
+ * Copyright (C) 2000 IBM Corporation
+ * Author(s): Tuan Ngo-Anh <ngoanh@de.ibm.com>
+ * Carsten Otte <cotte@de.ibm.com>
+ *
+ * UNDER CONSTRUCTION: Work in progress...:-)
+ ****************************************************************************
+ */
+
+#ifndef _TAPE34XX_H
+
+#define _TAPE34XX_H
+
+/*
+ * The CCW commands for the Tape type of command.
+ */
+
+#define INVALID_00 0x00 /* Invalid cmd */
+#define BACKSPACEBLOCK 0x27 /* Back Space block */
+#define BACKSPACEFILE 0x2f /* Back Space file */
+#define DATA_SEC_ERASE 0x97 /* Data security erase */
+#define ERASE_GAP 0x17 /* Erase Gap */
+#define FORSPACEBLOCK 0x37 /* Forward space block */
+#define FORSPACEFILE 0x3F /* Forward Space file */
+#define FORCE_STREAM_CNT 0xEB /* Forced streaming count # */
+#define NOP 0x03 /* No operation */
+#define READ_FORWARD 0x02 /* Read forward */
+#define REWIND 0x07 /* Rewind */
+#define REWIND_UNLOAD 0x0F /* Rewind and Unload */
+#define SENSE 0x04 /* Sense */
+#define NEW_MODE_SET 0xEB /* Guess it is Mode set */
+#define WRITE_CMD 0x01 /* Write */
+#define WRITETAPEMARK 0x1F /* Write Tape Mark */
+
+#define ASSIGN 0xB7 /* 3420 REJECT,3480 OK */
+#define CONTROL_ACCESS 0xE3 /* Set high speed */
+#define DIAG_MODE_SET 0x0B /* 3420 NOP, 3480 REJECT*/
+#define LOAD_DISPLAY 0x9F /* 3420 REJECT,3480 OK */
+#define LOCATE 0x4F /* 3420 REJ, 3480 NOP */
+#define LOOP_WRITE_TO_READ 0x8B /* 3480 REJECT */
+#define MODE_SET_DB 0xDB /* 3420 REJECT,3480 OK */
+#define MODE_SET_C3 0xC3 /* for 3420 */
+#define MODE_SET_CB 0xCB /* for 3420 */
+#define MODE_SET_D3 0xD3 /* for 3420 */
+#define READ_BACKWARD 0x0C /* */
+#define READ_BLOCK_ID 0x22 /* 3420 REJECT,3480 OK */
+#define READ_BUFFER 0x12 /* 3420 REJECT,3480 OK */
+#define READ_BUFF_LOG 0x24 /* 3420 REJECT,3480 OK */
+#define RELEASE 0xD4 /* 3420 NOP, 3480 REJECT*/
+#define REQ_TRK_IN_ERROR 0x1B /* 3420 NOP, 3480 REJECT*/
+#define RESERVE 0xF4 /* 3420 NOP, 3480 REJECT*/
+#define SENSE_GROUP_ID 0x34 /* 3420 REJECT,3480 OK */
+#define SENSE_ID 0xE4 /* 3420 REJECT,3480 OK */
+#define READ_DEV_CHAR 0x64 /* Read device characteristics */
+#define SET_DIAGNOSE 0x4B /* 3420 NOP, 3480 REJECT*/
+#define SET_GROUP_ID 0xAF /* 3420 REJECT,3480 OK */
+#define SET_TAPE_WRITE_IMMED 0xC3 /* for 3480 */
+#define SUSPEND 0x5B /* 3420 REJ, 3480 NOP */
+#define SYNC 0x43 /* Synchronize (flush buffer) */
+#define UNASSIGN 0xC7 /* 3420 REJECT,3480 OK */
+#define PERF_SUBSYS_FUNC 0x77 /* 3490 CMD */
+#define READ_CONFIG_DATA 0xFA /* 3490 CMD */
+#define READ_MESSAGE_ID 0x4E /* 3490 CMD */
+#define READ_SUBSYS_DATA 0x3E /* 3490 CMD */
+#define SET_INTERFACE_ID 0x73 /* 3490 CMD */
+
+#ifndef MIN
+#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
+#endif
+
+
+#define BLOCKSIZE 4096 /* size of the tape rcds */
+
+#define COMMAND_CHAIN CCW_FLAG_CC /* redefine from irq.h */
+#define CHANNEL_END DEV_STAT_CHN_END /* redefine from irq.h */
+#define DEVICE_END DEV_STAT_DEV_END /* redefine from irq.h */
+#define UNIT_CHECK DEV_STAT_UNIT_CHECK /* redefine from irq.h */
+#define UNIT_EXCEPTION DEV_STAT_UNIT_EXCEP /* redefine from irq.h */
+#define CONTROL_UNIT_END DEV_STAT_CU_END /* redefine from irq.h */
+#define INCORR_LEN SCHN_STAT_INCORR_LEN /* redefine from irq.h */
+
+typedef struct _tape34xx_disc_data_t {
+ __u8 modeset_byte;
+} tape34xx_disc_data_t __attribute__ ((packed, aligned(8)));
+
+/* discipline functions */
+int tape34xx_ioctl_overload (struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg);
+ccw_req_t * tape34xx_write_block (const char *data, size_t count, tape_info_t * tape);
+void tape34xx_free_write_block (ccw_req_t * cqr, tape_info_t * tape);
+ccw_req_t * tape34xx_read_block (const char *data, size_t count, tape_info_t * tape);
+void tape34xx_free_read_block (ccw_req_t * cqr, tape_info_t * tape);
+void tape34xx_clear_read_block (ccw_req_t * cqr, tape_info_t * tape);
+ccw_req_t * tape34xx_mtfsf (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtbsf (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtfsr (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtbsr (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtweof (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtrew (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtoffl (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtnop (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtbsfm (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtfsfm (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mteom (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mterase (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtsetdensity (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtseek (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mttell (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtsetdrvbuffer (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtlock (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtunlock (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtload (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtunload (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtcompression (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtsetpart (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtmkpart (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtiocget (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_mtiocpos (tape_info_t * tape, int count);
+ccw_req_t * tape34xx_bread (struct request *req, tape_info_t* tape,int tapeblock_major);
+ccw_req_t * tape34xx_bwrite (struct request *req, tape_info_t* tape,int tapeblock_major);
+void tape34xx_free_bread (ccw_req_t*,struct _tape_info_t*);
+void tape34xx_free_bwrite (ccw_req_t*,struct _tape_info_t*);
+
+/* Event handlers */
+void tape34xx_default_handler (tape_info_t * tape);
+void tape34xx_unexpect_uchk_handler (tape_info_t * tape);
+void tape34xx_unused_done(tape_info_t* tape);
+void tape34xx_unused_error(tape_info_t* tape);
+void tape34xx_idle_done(tape_info_t* tape);
+void tape34xx_idle_error(tape_info_t* tape);
+void tape34xx_block_done(tape_info_t* tape);
+void tape34xx_block_error(tape_info_t* tape);
+void tape34xx_bsf_init_done(tape_info_t* tape);
+void tape34xx_dse_init_done(tape_info_t* tape);
+void tape34xx_fsf_init_done(tape_info_t* tape);
+void tape34xx_fsf_init_error(tape_info_t* tape);
+void tape34xx_bsb_init_done(tape_info_t* tape);
+void tape34xx_fsb_init_done(tape_info_t* tape);
+void tape34xx_lbl_init_done(tape_info_t* tape);
+void tape34xx_lbl_init_error(tape_info_t* tape);
+void tape34xx_nop_init_done(tape_info_t* tape);
+void tape34xx_rfo_init_done(tape_info_t* tape);
+void tape34xx_rfo_init_error(tape_info_t* tape);
+void tape34xx_rbi_init_done(tape_info_t* tape);
+void tape34xx_rew_init_done(tape_info_t* tape);
+void tape34xx_rew_init_error(tape_info_t* tape);
+void tape34xx_rew_release_init_done(tape_info_t* tape);
+void tape34xx_rew_release_init_error(tape_info_t* tape);
+void tape34xx_run_init_done(tape_info_t* tape);
+void tape34xx_run_init_error(tape_info_t* tape);
+void tape34xx_wri_init_done(tape_info_t* tape);
+void tape34xx_wri_init_error(tape_info_t* tape);
+void tape34xx_wtm_init_done(tape_info_t* tape);
+void tape34xx_wtm_init_error(tape_info_t* tape);
+
+extern void schedule_tapeblock_exec_IO (tape_info_t *tape);
+#endif // _TAPE34XX_H
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