369a12704f
- dev_style_asyn() tests whether a device is asynchronous - simplifies code and helps readability
64 lines
2.8 KiB
C
64 lines
2.8 KiB
C
#ifndef _DMAP_H
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#define _DMAP_H
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#include <minix/sys_config.h>
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#include <minix/ipc.h>
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enum dev_style { STYLE_NDEV, STYLE_DEV, STYLE_DEVA, STYLE_TTY, STYLE_CTTY,
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STYLE_CLONE, STYLE_CLONE_A };
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#define IS_DEV_STYLE(s) (s>=STYLE_NDEV && s<=STYLE_CLONE_A)
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#define dev_style_asyn(devstyle) ((devstyle) == STYLE_DEVA || \
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(devstyle) == STYLE_CLONE_A)
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/*===========================================================================*
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* Major and minor device numbers *
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*===========================================================================*/
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/* Total number of different devices. */
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#define NR_DEVICES NR_SYS_PROCS /* number of (major) devices */
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/* Major device numbers. */
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#define NONE_MAJOR 0 /* 0 = not used */
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#define MEMORY_MAJOR 1 /* 1 = /dev/mem (memory devices) */
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#define FLOPPY_MAJOR 2 /* 2 = /dev/fd0 (floppy disks) */
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/* 3 = /dev/c0 */
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#define TTY_MAJOR 4 /* 4 = /dev/tty00 (ttys) */
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#define CTTY_MAJOR 5 /* 5 = /dev/tty */
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#define PRINTER_MAJOR 6 /* 6 = /dev/lp (printer driver) */
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#define INET_MAJOR 7 /* 7 = /dev/ip (inet) */
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/* 8 = /dev/c1 */
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/* 9 = not used */
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/* 10 = /dev/c2 */
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#define FILTER_MAJOR 11 /* 11 = /dev/filter (filter driver) */
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/* 12 = /dev/c3 */
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#define AUDIO_MAJOR 13 /* 13 = /dev/audio (audio driver) */
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#define FBD_MAJOR 14 /* 14 = /dev/fbd (faulty block dev)*/
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#define LOG_MAJOR 15 /* 15 = /dev/klog (log driver) */
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#define RANDOM_MAJOR 16 /* 16 = /dev/random (random driver) */
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#define HELLO_MAJOR 17 /* 17 = /dev/hello (hello driver) */
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#define UDS_MAJOR 18 /* 18 = /dev/uds (pfs) */
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/* Minor device numbers for memory driver. */
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# define RAM_DEV_OLD 0 /* minor device for /dev/ram */
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# define MEM_DEV 1 /* minor device for /dev/mem */
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# define KMEM_DEV 2 /* minor device for /dev/kmem */
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# define NULL_DEV 3 /* minor device for /dev/null */
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# define BOOT_DEV 4 /* minor device for /dev/boot */
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# define ZERO_DEV 5 /* minor device for /dev/zero */
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# define IMGRD_DEV 6 /* minor device for /dev/imgrd */
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# define RAM_DEV_FIRST 7 /* first minor device for /dev/ram* */
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#define CTRLR(n) ((n)==0 ? 3 : (8 + 2*((n)-1))) /* magic formula */
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/* Minor device numbers for log driver. */
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# define IS_KLOG_DEV 0 /* minor device for /dev/klog */
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/* Full device numbers that are special to the boot monitor and FS. */
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# define DEV_RAM ((dev_t) 0x0100) /* device number of /dev/ram */
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# define DEV_IMGRD ((dev_t) 0x0106) /* device number of /dev/imgrd */
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#endif /* _DMAP_H */
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