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gerrit-public.fairphone.software / kernel / msm-4.9 / 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 / . / drivers / char / ftape / lowlevel / ftape-ctl.h
blob: 5f5e30bc36157cd889f2d0c84397e47d461bbcc2 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame^]1#ifndef _FTAPE_CTL_H
2#define _FTAPE_CTL_H
3
4/*
5 * Copyright (C) 1993-1996 Bas Laarhoven,
6 * (C) 1996-1997 Claus-Justus Heine.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; see the file COPYING. If not, write to
20 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
21
22 *
23 * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-ctl.h,v $
24 * $Revision: 1.2 $
25 * $Date: 1997/10/05 19:18:09 $
26 *
27 * This file contains the non-standard IOCTL related definitions
28 * for the QIC-40/80/3010/3020 floppy-tape driver "ftape" for
29 * Linux.
30 */
31
32#include <linux/ioctl.h>
33#include <linux/mtio.h>
34#include <linux/ftape-vendors.h>
35
36#include "../lowlevel/ftape-rw.h"
37#include <linux/ftape-header-segment.h>
38
39typedef struct {
40 int used; /* any reading or writing done */
41 /* isr statistics */
42 unsigned int id_am_errors; /* id address mark not found */
43 unsigned int id_crc_errors; /* crc error in id address mark */
44 unsigned int data_am_errors; /* data address mark not found */
45 unsigned int data_crc_errors; /* crc error in data field */
46 unsigned int overrun_errors; /* fdc access timing problem */
47 unsigned int no_data_errors; /* sector not found */
48 unsigned int retries; /* number of tape retries */
49 /* ecc statistics */
50 unsigned int crc_errors; /* crc error in data */
51 unsigned int crc_failures; /* bad data without crc error */
52 unsigned int ecc_failures; /* failed to correct */
53 unsigned int corrected; /* total sectors corrected */
54 /* general statistics */
55 unsigned int rewinds; /* number of tape rewinds */
56 unsigned int defects; /* bad sectors due to media defects */
57} history_record;
58
59/* this structure contains * ALL * information that we want
60 * our child modules to know about, but don't want them to
61 * modify.
62 */
63typedef struct {
64 /* vendor information */
65 vendor_struct fti_drive_type;
66 /* data rates */
67 unsigned int fti_used_data_rate;
68 unsigned int fti_drive_max_rate;
69 unsigned int fti_fdc_max_rate;
70 /* drive selection, either FTAPE_SEL_A/B/C/D */
71 int fti_drive_sel;
72 /* flags set after decode the drive and tape status */
73 unsigned int fti_formatted :1;
74 unsigned int fti_no_tape :1;
75 unsigned int fti_write_protected:1;
76 unsigned int fti_new_tape :1;
77 /* values of last queried drive/tape status and error */
78 ft_drive_error fti_last_error;
79 ft_drive_status fti_last_status;
80 /* cartridge geometry */
81 unsigned int fti_tracks_per_tape;
82 unsigned int fti_segments_per_track;
83 /* location of header segments, etc. */
84 int fti_used_header_segment;
85 int fti_header_segment_1;
86 int fti_header_segment_2;
87 int fti_first_data_segment;
88 int fti_last_data_segment;
89 /* the format code as stored in the header segment */
90 ft_format_type fti_format_code;
91 /* the following is the sole reason for the ftape_set_status() call */
92 unsigned int fti_qic_std;
93 /* is tape running? */
94 volatile enum runner_status_enum fti_runner_status;
95 /* is tape reading/writing/verifying/formatting/deleting */
96 buffer_state_enum fti_state;
97 /* flags fatal hardware error */
98 unsigned int fti_failure:1;
99 /* history record */
100 history_record fti_history;
101} ftape_info;
102
103/* vendor information */
104#define ft_drive_type ftape_status.fti_drive_type
105/* data rates */
106#define ft_data_rate ftape_status.fti_used_data_rate
107#define ft_drive_max_rate ftape_status.fti_drive_max_rate
108#define ft_fdc_max_rate ftape_status.fti_fdc_max_rate
109/* drive selection, either FTAPE_SEL_A/B/C/D */
110#define ft_drive_sel ftape_status.fti_drive_sel
111/* flags set after decode the drive and tape status */
112#define ft_formatted ftape_status.fti_formatted
113#define ft_no_tape ftape_status.fti_no_tape
114#define ft_write_protected ftape_status.fti_write_protected
115#define ft_new_tape ftape_status.fti_new_tape
116/* values of last queried drive/tape status and error */
117#define ft_last_error ftape_status.fti_last_error
118#define ft_last_status ftape_status.fti_last_status
119/* cartridge geometry */
120#define ft_tracks_per_tape ftape_status.fti_tracks_per_tape
121#define ft_segments_per_track ftape_status.fti_segments_per_track
122/* the format code as stored in the header segment */
123#define ft_format_code ftape_status.fti_format_code
124/* the qic status as returned by report drive configuration */
125#define ft_qic_std ftape_status.fti_qic_std
126#define ft_used_header_segment ftape_status.fti_used_header_segment
127#define ft_header_segment_1 ftape_status.fti_header_segment_1
128#define ft_header_segment_2 ftape_status.fti_header_segment_2
129#define ft_first_data_segment ftape_status.fti_first_data_segment
130#define ft_last_data_segment ftape_status.fti_last_data_segment
131/* is tape running? */
132#define ft_runner_status ftape_status.fti_runner_status
133/* is tape reading/writing/verifying/formatting/deleting */
134#define ft_driver_state ftape_status.fti_state
135/* flags fatal hardware error */
136#define ft_failure ftape_status.fti_failure
137/* history record */
138#define ft_history ftape_status.fti_history
139
140/*
141 * ftape-ctl.c defined global vars.
142 */
143extern ftape_info ftape_status;
144extern int ftape_segments_per_head;
145extern int ftape_segments_per_cylinder;
146extern int ftape_init_drive_needed;
147
148/*
149 * ftape-ctl.c defined global functions.
150 */
151extern int ftape_mmap(struct vm_area_struct *vma);
152extern int ftape_enable(int drive_selection);
153extern void ftape_disable(void);
154extern int ftape_seek_to_bot(void);
155extern int ftape_seek_to_eot(void);
156extern int ftape_abort_operation(void);
157extern void ftape_calc_timeouts(unsigned int qic_std,
158 unsigned int data_rate,
159 unsigned int tape_len);
160extern int ftape_calibrate_data_rate(unsigned int qic_std);
161extern const ftape_info *ftape_get_status(void);
162#endif