patch-2.1.66 linux/drivers/char/ftape/lowlevel/ftape-ctl.h

• Lines: 173
• Date: Tue Nov 25 14:45:27 1997
• Orig file: v2.1.65/linux/drivers/char/ftape/lowlevel/ftape-ctl.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.65/linux/drivers/char/ftape/lowlevel/ftape-ctl.h linux/drivers/char/ftape/lowlevel/ftape-ctl.h
@@ -0,0 +1,172 @@
+#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
+
+/*  compatibility with old kernel versions
+ */
+#if LINUX_VERSION_CODE <= KERNEL_VER(1,2,13)
+#define _IOC_SIZE(cmd) (((cmd) & IOCSIZE_MASK) >> IOCSIZE_SHIFT)
+#define _IOC_DIR(cmd)  (cmd)
+#define _IOC_WRITE IOC_IN
+#define _IOC_READ  IOC_OUT
+#endif
+
+/*
+ *      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 int  ftape_init_drive(void);
+extern const ftape_info *ftape_get_status(void);
+#endif