drivers/char/ftape/lowlevel/ftape-io.h

   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_report_operation(int *status,
  69                                   qic117_cmd_t  command,
  70                                   int result_length);
  71 extern int ftape_report_configuration(qic_model *model,
  72                                       unsigned int *rate,
  73                                       int *qic_std,
  74                                       int *tape_len);
  75 extern int ftape_report_drive_status(int *status);
  76 extern int ftape_report_raw_drive_status(int *status);
  77 extern int ftape_report_status(int *status);
  78 extern int ftape_ready_wait(unsigned int timeout, int *status);
  79 extern int ftape_seek_head_to_track(unsigned int track);
  80 extern int ftape_set_data_rate(unsigned int new_rate, unsigned int qic_std);
  81 extern int ftape_report_error(unsigned int *error,
  82                               qic117_cmd_t *command,
  83                               int report);
  84 extern int ftape_reset_drive(void);
  85 extern int ftape_put_drive_to_sleep(wake_up_types method);
  86 extern int ftape_wakeup_drive(wake_up_types method);
  87 extern int ftape_increase_threshold(void);
  88 extern int ftape_half_data_rate(void);
  89
  90 #endif