diff options
Diffstat (limited to 'drivers/char/ftape/lowlevel/ftape-ctl.h')
| -rw-r--r-- | drivers/char/ftape/lowlevel/ftape-ctl.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/drivers/char/ftape/lowlevel/ftape-ctl.h b/drivers/char/ftape/lowlevel/ftape-ctl.h new file mode 100644 index 000000000000..5f5e30bc3615 --- /dev/null +++ b/drivers/char/ftape/lowlevel/ftape-ctl.h @@ -0,0 +1,162 @@ +#ifndef _FTAPE_CTL_H +#define _FTAPE_CTL_H + +/* + * Copyright (C) 1993-1996 Bas Laarhoven, + * (C) 1996-1997 Claus-Justus Heine. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + + * + * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-ctl.h,v $ + * $Revision: 1.2 $ + * $Date: 1997/10/05 19:18:09 $ + * + * This file contains the non-standard IOCTL related definitions + * for the QIC-40/80/3010/3020 floppy-tape driver "ftape" for + * Linux. + */ + +#include <linux/ioctl.h> +#include <linux/mtio.h> +#include <linux/ftape-vendors.h> + +#include "../lowlevel/ftape-rw.h" +#include <linux/ftape-header-segment.h> + +typedef struct { + int used; /* any reading or writing done */ + /* isr statistics */ + unsigned int id_am_errors; /* id address mark not found */ + unsigned int id_crc_errors; /* crc error in id address mark */ + unsigned int data_am_errors; /* data address mark not found */ + unsigned int data_crc_errors; /* crc error in data field */ + unsigned int overrun_errors; /* fdc access timing problem */ + unsigned int no_data_errors; /* sector not found */ + unsigned int retries; /* number of tape retries */ + /* ecc statistics */ + unsigned int crc_errors; /* crc error in data */ + unsigned int crc_failures; /* bad data without crc error */ + unsigned int ecc_failures; /* failed to correct */ + unsigned int corrected; /* total sectors corrected */ + /* general statistics */ + unsigned int rewinds; /* number of tape rewinds */ + unsigned int defects; /* bad sectors due to media defects */ +} history_record; + +/* this structure contains * ALL * information that we want + * our child modules to know about, but don't want them to + * modify. + */ +typedef struct { + /* vendor information */ + vendor_struct fti_drive_type; + /* data rates */ + unsigned int fti_used_data_rate; + unsigned int fti_drive_max_rate; + unsigned int fti_fdc_max_rate; + /* drive selection, either FTAPE_SEL_A/B/C/D */ + int fti_drive_sel; + /* flags set after decode the drive and tape status */ + unsigned int fti_formatted :1; + unsigned int fti_no_tape :1; + unsigned int fti_write_protected:1; + unsigned int fti_new_tape :1; + /* values of last queried drive/tape status and error */ + ft_drive_error fti_last_error; + ft_drive_status fti_last_status; + /* cartridge geometry */ + unsigned int fti_tracks_per_tape; + unsigned int fti_segments_per_track; + /* location of header segments, etc. */ + int fti_used_header_segment; + int fti_header_segment_1; + int fti_header_segment_2; + int fti_first_data_segment; + int fti_last_data_segment; + /* the format code as stored in the header segment */ + ft_format_type fti_format_code; + /* the following is the sole reason for the ftape_set_status() call */ + unsigned int fti_qic_std; + /* is tape running? */ + volatile enum runner_status_enum fti_runner_status; + /* is tape reading/writing/verifying/formatting/deleting */ + buffer_state_enum fti_state; + /* flags fatal hardware error */ + unsigned int fti_failure:1; + /* history record */ + history_record fti_history; +} ftape_info; + +/* vendor information */ +#define ft_drive_type ftape_status.fti_drive_type +/* data rates */ +#define ft_data_rate ftape_status.fti_used_data_rate +#define ft_drive_max_rate ftape_status.fti_drive_max_rate +#define ft_fdc_max_rate ftape_status.fti_fdc_max_rate +/* drive selection, either FTAPE_SEL_A/B/C/D */ +#define ft_drive_sel ftape_status.fti_drive_sel +/* flags set after decode the drive and tape status */ +#define ft_formatted ftape_status.fti_formatted +#define ft_no_tape ftape_status.fti_no_tape +#define ft_write_protected ftape_status.fti_write_protected +#define ft_new_tape ftape_status.fti_new_tape +/* values of last queried drive/tape status and error */ +#define ft_last_error ftape_status.fti_last_error +#define ft_last_status ftape_status.fti_last_status +/* cartridge geometry */ +#define ft_tracks_per_tape ftape_status.fti_tracks_per_tape +#define ft_segments_per_track ftape_status.fti_segments_per_track +/* the format code as stored in the header segment */ +#define ft_format_code ftape_status.fti_format_code +/* the qic status as returned by report drive configuration */ +#define ft_qic_std ftape_status.fti_qic_std +#define ft_used_header_segment ftape_status.fti_used_header_segment +#define ft_header_segment_1 ftape_status.fti_header_segment_1 +#define ft_header_segment_2 ftape_status.fti_header_segment_2 +#define ft_first_data_segment ftape_status.fti_first_data_segment +#define ft_last_data_segment ftape_status.fti_last_data_segment +/* is tape running? */ +#define ft_runner_status ftape_status.fti_runner_status +/* is tape reading/writing/verifying/formatting/deleting */ +#define ft_driver_state ftape_status.fti_state +/* flags fatal hardware error */ +#define ft_failure ftape_status.fti_failure +/* history record */ +#define ft_history ftape_status.fti_history + +/* + * ftape-ctl.c defined global vars. + */ +extern ftape_info ftape_status; +extern int ftape_segments_per_head; +extern int ftape_segments_per_cylinder; +extern int ftape_init_drive_needed; + +/* + * ftape-ctl.c defined global functions. + */ +extern int ftape_mmap(struct vm_area_struct *vma); +extern int ftape_enable(int drive_selection); +extern void ftape_disable(void); +extern int ftape_seek_to_bot(void); +extern int ftape_seek_to_eot(void); +extern int ftape_abort_operation(void); +extern void ftape_calc_timeouts(unsigned int qic_std, + unsigned int data_rate, + unsigned int tape_len); +extern int ftape_calibrate_data_rate(unsigned int qic_std); +extern const ftape_info *ftape_get_status(void); +#endif |