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 */ 53