53 строки
1.7 KiB
C
53 строки
1.7 KiB
C
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/* linux/include/linux/optcd.h - Optics Storage 8000 AT CDROM driver
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$Id: optcd.h,v 1.2 1996/01/15 18:43:44 root Exp root $
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Copyright (C) 1995 Leo Spiekman (spiekman@dutette.et.tudelft.nl)
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Configuration file for linux/drivers/cdrom/optcd.c
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*/
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#ifndef _LINUX_OPTCD_H
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#define _LINUX_OPTCD_H
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/* I/O base of drive. Drive uses base to base+2.
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This setting can be overridden with the kernel or insmod command
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line option 'optcd=<portbase>'. Use address of 0 to disable driver. */
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#define OPTCD_PORTBASE 0x340
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/* enable / disable parts of driver by define / undef */
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#define MULTISESSION /* multisession support (ALPHA) */
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/* Change 0 to 1 to debug various parts of the driver */
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#define DEBUG_DRIVE_IF 0 /* Low level drive interface */
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#define DEBUG_CONV 0 /* Address conversions */
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#define DEBUG_BUFFERS 0 /* Buffering and block size conversion */
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#define DEBUG_REQUEST 0 /* Request mechanism */
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#define DEBUG_STATE 0 /* State machine */
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#define DEBUG_TOC 0 /* Q-channel and Table of Contents */
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#define DEBUG_MULTIS 0 /* Multisession code */
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#define DEBUG_VFS 0 /* VFS interface */
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/* Don't touch these unless you know what you're doing. */
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/* Various timeout loop repetition counts. */
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#define BUSY_TIMEOUT 10000000 /* for busy wait */
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#define FAST_TIMEOUT 100000 /* ibid. for probing */
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#define SLEEP_TIMEOUT 6000 /* for timer wait */
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#define MULTI_SEEK_TIMEOUT 1000 /* for timer wait */
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#define READ_TIMEOUT 6000 /* for poll wait */
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#define STOP_TIMEOUT 2000 /* for poll wait */
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#define RESET_WAIT 5000 /* busy wait at drive reset */
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/* # of buffers for block size conversion. 6 is optimal for my setup (P75),
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giving 280 kb/s, with 0.4% CPU usage. Experiment to find your optimal
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setting */
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#define N_BUFS 6
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#endif /* _LINUX_OPTCD_H */
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