drivers/cdrom/optcd.h

   1 /*      linux/include/linux/optcd.h - Optics Storage 8000 AT CDROM driver
   2         $Id: optcd.h,v 1.2 1996/01/15 18:43:44 root Exp root $
   3
   4         Copyright (C) 1995 Leo Spiekman (spiekman@dutette.et.tudelft.nl)
   5
   6
   7         Configuration file for linux/drivers/cdrom/optcd.c
   8 */
   9
  10 #ifndef _LINUX_OPTCD_H
  11 #define _LINUX_OPTCD_H
  12
  13
  14 /* I/O base of drive. Drive uses base to base+2.
  15    This setting can be overridden with the kernel or insmod command
  16    line option 'optcd=<portbase>'. Use address of 0 to disable driver. */
  17 #define OPTCD_PORTBASE  0x340
  18
  19
  20 /* enable / disable parts of driver by define / undef */
  21 #define MULTISESSION            /* multisession support (ALPHA) */
  22
  23
  24 /* Change 0 to 1 to debug various parts of the driver */
  25 #define DEBUG_DRIVE_IF  0       /* Low level drive interface */
  26 #define DEBUG_CONV      0       /* Address conversions */
  27 #define DEBUG_BUFFERS   0       /* Buffering and block size conversion */
  28 #define DEBUG_REQUEST   0       /* Request mechanism */
  29 #define DEBUG_STATE     0       /* State machine */
  30 #define DEBUG_TOC       0       /* Q-channel and Table of Contents */
  31 #define DEBUG_MULTIS    0       /* Multisession code */
  32 #define DEBUG_VFS       0       /* VFS interface */
  33
  34
  35 /* Don't touch these unless you know what you're doing. */
  36
  37 /* Various timeout loop repetition counts. */
  38 #define BUSY_TIMEOUT            10000000        /* for busy wait */
  39 #define FAST_TIMEOUT            100000          /* ibid. for probing */
  40 #define SLEEP_TIMEOUT           6000            /* for timer wait */
  41 #define MULTI_SEEK_TIMEOUT      1000            /* for timer wait */
  42 #define READ_TIMEOUT            6000            /* for poll wait */
  43 #define STOP_TIMEOUT            2000            /* for poll wait */
  44 #define RESET_WAIT              5000            /* busy wait at drive reset */
  45
  46 /* # of buffers for block size conversion. 6 is optimal for my setup (P75),
  47    giving 280 kb/s, with 0.4% CPU usage. Experiment to find your optimal
  48    setting */
  49 #define N_BUFS          6
  50
  51
  52 #endif /* _LINUX_OPTCD_H */