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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* 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 */