diff options
Diffstat (limited to 'drivers/cdrom/optcd.h')
| -rw-r--r-- | drivers/cdrom/optcd.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/cdrom/optcd.h b/drivers/cdrom/optcd.h new file mode 100644 index 00000000000..1911bb92ee2 --- /dev/null +++ b/drivers/cdrom/optcd.h @@ -0,0 +1,52 @@ +/* linux/include/linux/optcd.h - Optics Storage 8000 AT CDROM driver + $Id: optcd.h,v 1.2 1996/01/15 18:43:44 root Exp root $ + + Copyright (C) 1995 Leo Spiekman (spiekman@dutette.et.tudelft.nl) + + + Configuration file for linux/drivers/cdrom/optcd.c +*/ + +#ifndef _LINUX_OPTCD_H +#define _LINUX_OPTCD_H + + +/* I/O base of drive. Drive uses base to base+2. + This setting can be overridden with the kernel or insmod command + line option 'optcd=<portbase>'. Use address of 0 to disable driver. */ +#define OPTCD_PORTBASE 0x340 + + +/* enable / disable parts of driver by define / undef */ +#define MULTISESSION /* multisession support (ALPHA) */ + + +/* Change 0 to 1 to debug various parts of the driver */ +#define DEBUG_DRIVE_IF 0 /* Low level drive interface */ +#define DEBUG_CONV 0 /* Address conversions */ +#define DEBUG_BUFFERS 0 /* Buffering and block size conversion */ +#define DEBUG_REQUEST 0 /* Request mechanism */ +#define DEBUG_STATE 0 /* State machine */ +#define DEBUG_TOC 0 /* Q-channel and Table of Contents */ +#define DEBUG_MULTIS 0 /* Multisession code */ +#define DEBUG_VFS 0 /* VFS interface */ + + +/* Don't touch these unless you know what you're doing. */ + +/* Various timeout loop repetition counts. */ +#define BUSY_TIMEOUT 10000000 /* for busy wait */ +#define FAST_TIMEOUT 100000 /* ibid. for probing */ +#define SLEEP_TIMEOUT 6000 /* for timer wait */ +#define MULTI_SEEK_TIMEOUT 1000 /* for timer wait */ +#define READ_TIMEOUT 6000 /* for poll wait */ +#define STOP_TIMEOUT 2000 /* for poll wait */ +#define RESET_WAIT 5000 /* busy wait at drive reset */ + +/* # of buffers for block size conversion. 6 is optimal for my setup (P75), + giving 280 kb/s, with 0.4% CPU usage. Experiment to find your optimal + setting */ +#define N_BUFS 6 + + +#endif /* _LINUX_OPTCD_H */ |