1 #ifndef _FTAPE_IO_H
2 #define _FTAPE_IO_H
3 
4 /*
5  * Copyright (C) 1993-1996 Bas Laarhoven,
6  *           (C) 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-io.h,v $
24  * $Revision: 1.2 $
25  * $Date: 1997/10/05 19:18:18 $
26  *
27  *      This file contains definitions for the glue part of the
28  *      QIC-40/80/3010/3020 floppy-tape driver "ftape" for Linux.
29  */
30 
31 #include <linux/qic117.h>
32 #include <linux/ftape-vendors.h>
33 
34 typedef struct {
35 	unsigned int seek;
36 	unsigned int reset;
37 	unsigned int rewind;
38 	unsigned int head_seek;
39 	unsigned int stop;
40 	unsigned int pause;
41 } ft_timeout_table;
42 
43 typedef enum {
44 	prehistoric, pre_qic117c, post_qic117b, post_qic117d
45 } qic_model;
46 
47 /*
48  *      ftape-io.c defined global vars.
49  */
50 extern ft_timeout_table ftape_timeout;
51 extern unsigned int ftape_tape_len;
52 extern volatile qic117_cmd_t ftape_current_command;
53 extern const struct qic117_command_table qic117_cmds[];
54 extern int ftape_might_be_off_track;
55 
56 /*
57  *      ftape-io.c defined global functions.
58  */
59 extern void ftape_udelay(unsigned int usecs);
60 extern void  ftape_udelay_calibrate(void);
61 extern void ftape_sleep(unsigned int time);
62 extern void ftape_report_vendor_id(unsigned int *id);
63 extern int  ftape_command(qic117_cmd_t command);
64 extern int  ftape_command_wait(qic117_cmd_t command,
65 			       unsigned int timeout,
66 			       int *status);
67 extern int  ftape_parameter(unsigned int parameter);
68 extern int  ftape_parameter_wait(unsigned int parameter,
69 				 unsigned int timeout,
70 				 int *status);
71 extern int ftape_report_operation(int *status,
72 				  qic117_cmd_t  command,
73 				  int result_length);
74 extern int ftape_report_configuration(qic_model *model,
75 				      unsigned int *rate,
76 				      int *qic_std,
77 				      int *tape_len);
78 extern int ftape_report_drive_status(int *status);
79 extern int ftape_report_raw_drive_status(int *status);
80 extern int ftape_report_status(int *status);
81 extern int ftape_ready_wait(unsigned int timeout, int *status);
82 extern int ftape_seek_head_to_track(unsigned int track);
83 extern int ftape_in_error_state(int status);
84 extern int ftape_set_data_rate(unsigned int new_rate, unsigned int qic_std);
85 extern int ftape_report_error(unsigned int *error,
86 			      qic117_cmd_t *command,
87 			      int report);
88 extern int ftape_reset_drive(void);
89 extern int ftape_put_drive_to_sleep(wake_up_types method);
90 extern int ftape_wakeup_drive(wake_up_types method);
91 extern int ftape_increase_threshold(void);
92 extern int ftape_half_data_rate(void);
93 
94 #endif
95