422 lines
19 KiB
C
Executable File
422 lines
19 KiB
C
Executable File
#ifndef _MINIX_COM_H
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#define _MINIX_COM_H
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/*===========================================================================*
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* Magic process numbers *
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*===========================================================================*/
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#define ANY 0x7ace /* used to indicate 'any process' */
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#define NONE 0x6ace /* used to indicate 'no process at all' */
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#define SELF 0x8ace /* used to indicate 'own process' */
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/*===========================================================================*
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* Process numbers of processes in the system image *
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*===========================================================================*/
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/* The values of several task numbers depend on whether they or other tasks
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* are enabled. They are defined as (PREVIOUS_TASK - ENABLE_TASK) in general.
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* ENABLE_TASK is either 0 or 1, so a task either gets a new number, or gets
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* the same number as the previous task and is further unused. Note that the
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* order should correspond to the order in the task table defined in table.c.
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*/
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/* Kernel tasks. These all run in the same address space. */
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#define IDLE -4 /* runs when no one else can run */
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#define CLOCK -3 /* alarms and other clock functions */
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#define SYSTEM -2 /* request system functionality */
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#define KERNEL -1 /* pseudo-process for IPC and scheduling */
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#define HARDWARE KERNEL /* for hardware interrupt handlers */
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/* Number of tasks. Note that NR_PROCS is defined in <minix/config.h>. */
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#define NR_TASKS 4
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/* User-space processes, that is, device drivers, servers, and INIT. */
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#define PM_PROC_NR 0 /* process manager */
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#define FS_PROC_NR 1 /* file system */
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#define SM_PROC_NR 2 /* system service manager */
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#define MEM_PROC_NR 3 /* memory driver (RAM disk, null, etc.) */
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#define LOG_PROC_NR 4 /* log device driver */
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#define TTY_PROC_NR 5 /* terminal (TTY) driver */
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#define DRVR_PROC_NR 6 /* device driver for boot medium */
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#define INIT_PROC_NR 7 /* init -- goes multiuser */
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/* Number of processes contained in the system image. */
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#define NR_BOOT_PROCS (NR_TASKS + INIT_PROC_NR + 1)
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/*===========================================================================*
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* Kernel notification types *
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*===========================================================================*/
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/* Kernel notification types. In principle, these can be sent to any process,
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* so make sure that these types do not interfere with other message types.
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* Notifications are prioritized because of the way they are unhold() and
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* blocking notifications are delivered. The lowest numbers go first. The
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* offset are used for the per-process notification bit maps.
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*/
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#define NOTIFY_MESSAGE 0x1000
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#define NOTIFY_FROM(p_nr) (NOTIFY_MESSAGE | ((p_nr) + NR_TASKS))
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# define SYN_ALARM NOTIFY_FROM(CLOCK) /* synchronous alarm */
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# define SYS_SIG NOTIFY_FROM(SYSTEM) /* system signal */
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# define HARD_INT NOTIFY_FROM(HARDWARE) /* hardware interrupt */
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# define NEW_KSIG NOTIFY_FROM(HARDWARE) /* new kernel signal */
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# define FKEY_PRESSED NOTIFY_FROM(TTY_PROC_NR)/* function key press */
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/* Shorthands for message parameters passed with notifications. */
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#define NOTIFY_SOURCE m_source
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#define NOTIFY_TYPE m_type
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#define NOTIFY_ARG m2_l1
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#define NOTIFY_TIMESTAMP m2_l2
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#define NOTIFY_FLAGS m2_i1
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/*===========================================================================*
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* Messages for BLOCK and CHARACTER device drivers *
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*===========================================================================*/
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/* Message types for device drivers. */
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#define DEV_RQ_BASE 0x400 /* base for device request types */
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#define DEV_RS_BASE 0x500 /* base for device response types */
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#define CANCEL (DEV_RQ_BASE + 0) /* general req to force a task to cancel */
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#define DEV_READ (DEV_RQ_BASE + 3) /* read from minor device */
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#define DEV_WRITE (DEV_RQ_BASE + 4) /* write to minor device */
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#define DEV_IOCTL (DEV_RQ_BASE + 5) /* I/O control code */
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#define DEV_OPEN (DEV_RQ_BASE + 6) /* open a minor device */
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#define DEV_CLOSE (DEV_RQ_BASE + 7) /* close a minor device */
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#define DEV_SCATTER (DEV_RQ_BASE + 8) /* write from a vector */
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#define DEV_GATHER (DEV_RQ_BASE + 9) /* read into a vector */
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#define TTY_SETPGRP (DEV_RQ_BASE + 10) /* set process group */
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#define TTY_EXIT (DEV_RQ_BASE + 11) /* process group leader exited */
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#define DEV_SELECT (DEV_RQ_BASE + 12) /* request select() attention */
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#define DEV_STATUS (DEV_RQ_BASE + 13) /* request driver status */
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#define DEV_REPLY (DEV_RS_BASE + 0) /* general task reply */
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#define DEV_CLONED (DEV_RS_BASE + 1) /* return cloned minor */
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#define DEV_REVIVE (DEV_RS_BASE + 2) /* driver revives process */
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#define DEV_IO_READY (DEV_RS_BASE + 3) /* selected device ready */
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#define DEV_NO_STATUS (DEV_RS_BASE + 4) /* empty status reply */
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/* Field names for messages to block and character device drivers. */
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#define DEVICE m2_i1 /* major-minor device */
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#define PROC_NR m2_i2 /* which (proc) wants I/O? */
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#define COUNT m2_i3 /* how many bytes to transfer */
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#define REQUEST m2_i3 /* ioctl request code */
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#define POSITION m2_l1 /* file offset */
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#define ADDRESS m2_p1 /* core buffer address */
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/* Field names for DEV_SELECT messages to device drivers. */
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#define DEV_MINOR m2_i1 /* minor device */
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#define DEV_SEL_OPS m2_i2 /* which select operations are requested */
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#define DEV_SEL_WATCH m2_i3 /* request notify if no operations are ready */
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/* Field names used in reply messages from tasks. */
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#define REP_PROC_NR m2_i1 /* # of proc on whose behalf I/O was done */
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#define REP_STATUS m2_i2 /* bytes transferred or error number */
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# define SUSPEND -998 /* status to suspend caller, reply later */
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/* Field names for messages to TTY driver. */
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#define TTY_LINE DEVICE /* message parameter: terminal line */
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#define TTY_REQUEST COUNT /* message parameter: ioctl request code */
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#define TTY_SPEK POSITION/* message parameter: ioctl speed, erasing */
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#define TTY_FLAGS m2_l2 /* message parameter: ioctl tty mode */
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#define TTY_PGRP m2_i3 /* message parameter: process group */
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/* Field names for the QIC 02 status reply from tape driver */
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#define TAPE_STAT0 m2_l1
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#define TAPE_STAT1 m2_l2
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/*===========================================================================*
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* Messages for networking layer *
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*===========================================================================*/
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/* Message types for network layer requests. This layer acts like a driver. */
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#define NW_OPEN DEV_OPEN
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#define NW_CLOSE DEV_CLOSE
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#define NW_READ DEV_READ
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#define NW_WRITE DEV_WRITE
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#define NW_IOCTL DEV_IOCTL
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#define NW_CANCEL CANCEL
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/* Base type for data link layer requests and responses. */
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#define DL_RQ_BASE 0x800
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#define DL_RS_BASE 0x900
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/* Message types for data link layer requests. */
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#define DL_WRITE (DL_RQ_BASE + 3)
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#define DL_WRITEV (DL_RQ_BASE + 4)
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#define DL_READ (DL_RQ_BASE + 5)
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#define DL_READV (DL_RQ_BASE + 6)
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#define DL_INIT (DL_RQ_BASE + 7)
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#define DL_STOP (DL_RQ_BASE + 8)
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#define DL_GETSTAT (DL_RQ_BASE + 9)
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/* Message type for data link layer replies. */
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#define DL_INIT_REPLY (DL_RS_BASE + 20)
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#define DL_TASK_REPLY (DL_RS_BASE + 21)
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/* Field names for data link layer messages. */
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#define DL_PORT m2_i1
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#define DL_PROC m2_i2
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#define DL_COUNT m2_i3
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#define DL_MODE m2_l1
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#define DL_CLCK m2_l2
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#define DL_ADDR m2_p1
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#define DL_STAT m2_l1
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/* Bits in 'DL_STAT' field of DL replies. */
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# define DL_PACK_SEND 0x01
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# define DL_PACK_RECV 0x02
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# define DL_READ_IP 0x04
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/* Bits in 'DL_MODE' field of DL requests. */
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# define DL_NOMODE 0x0
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# define DL_PROMISC_REQ 0x2
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# define DL_MULTI_REQ 0x4
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# define DL_BROAD_REQ 0x8
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/*===========================================================================*
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* SYSTASK request types and field names *
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*===========================================================================*/
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/* System library calls are dispatched via a call vector, so be careful when
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* modifying the system call numbers. The numbers here determine which call
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* is made from the call vector.
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*/
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#define KERNEL_CALL 0x600 /* base for kernel calls to SYSTEM */
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# define SYS_FORK (KERNEL_CALL + 0) /* sys_fork() */
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# define SYS_EXEC (KERNEL_CALL + 1) /* sys_exec() */
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# define SYS_EXIT (KERNEL_CALL + 2) /* sys_exit() */
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# define SYS_NICE (KERNEL_CALL + 3) /* sys_nice() */
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# define SYS_PRIVCTL (KERNEL_CALL + 4) /* sys_privctl() */
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# define SYS_TRACE (KERNEL_CALL + 5) /* sys_trace() */
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# define SYS_KILL (KERNEL_CALL + 6) /* sys_kill() */
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# define SYS_GETKSIG (KERNEL_CALL + 7) /* sys_getsig() */
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# define SYS_ENDKSIG (KERNEL_CALL + 8) /* sys_endsig() */
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# define SYS_SIGSEND (KERNEL_CALL + 9) /* sys_sigsend() */
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# define SYS_SIGRETURN (KERNEL_CALL + 10) /* sys_sigreturn() */
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# define SYS_NEWMAP (KERNEL_CALL + 11) /* sys_newmap() */
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# define SYS_SEGCTL (KERNEL_CALL + 12) /* sys_segctl() */
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# define SYS_MEMSET (KERNEL_CALL + 13) /* sys_memset() */
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# define SYS_UMAP (KERNEL_CALL + 14) /* sys_umap() */
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# define SYS_VIRCOPY (KERNEL_CALL + 15) /* sys_vircopy() */
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# define SYS_PHYSCOPY (KERNEL_CALL + 16) /* sys_physcopy() */
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# define SYS_VIRVCOPY (KERNEL_CALL + 17) /* sys_virvcopy() */
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# define SYS_PHYSVCOPY (KERNEL_CALL + 18) /* sys_physvcopy() */
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# define SYS_IRQCTL (KERNEL_CALL + 19) /* sys_irqctl() */
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# define SYS_INT86 (KERNEL_CALL + 20) /* sys_int86() */
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# define SYS_DEVIO (KERNEL_CALL + 21) /* sys_devio() */
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# define SYS_SDEVIO (KERNEL_CALL + 22) /* sys_sdevio() */
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# define SYS_VDEVIO (KERNEL_CALL + 23) /* sys_vdevio() */
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# define SYS_SETALARM (KERNEL_CALL + 24) /* sys_setalarm() */
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# define SYS_TIMES (KERNEL_CALL + 25) /* sys_times() */
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# define SYS_GETINFO (KERNEL_CALL + 26) /* sys_getinfo() */
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# define SYS_ABORT (KERNEL_CALL + 27) /* sys_abort() */
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#define NR_SYS_CALLS 28 /* number of system calls */
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/* Field names for SYS_MEMSET, SYS_SEGCTL. */
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#define MEM_PTR m2_p1 /* base */
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#define MEM_COUNT m2_l1 /* count */
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#define MEM_PATTERN m2_l2 /* pattern to write */
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#define MEM_CHUNK_BASE m4_l1 /* physical base address */
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#define MEM_CHUNK_SIZE m4_l2 /* size of mem chunk */
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#define MEM_TOT_SIZE m4_l3 /* total memory size */
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#define MEM_CHUNK_TAG m4_l4 /* tag to identify chunk of mem */
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/* Field names for SYS_DEVIO, SYS_VDEVIO, SYS_SDEVIO. */
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#define DIO_REQUEST m2_i3 /* device in or output */
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# define DIO_INPUT 0 /* input */
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# define DIO_OUTPUT 1 /* output */
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#define DIO_TYPE m2_i1 /* flag indicating byte, word, or long */
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# define DIO_BYTE 'b' /* byte type values */
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# define DIO_WORD 'w' /* word type values */
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# define DIO_LONG 'l' /* long type values */
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#define DIO_PORT m2_l1 /* single port address */
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#define DIO_VALUE m2_l2 /* single I/O value */
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#define DIO_VEC_ADDR m2_p1 /* address of buffer or (p,v)-pairs */
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#define DIO_VEC_SIZE m2_l2 /* number of elements in vector */
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#define DIO_VEC_PROC m2_i2 /* number of process where vector is */
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/* Field names for SYS_SIGNARLM, SYS_FLAGARLM, SYS_SYNCALRM. */
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#define ALRM_EXP_TIME m2_l1 /* expire time for the alarm call */
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#define ALRM_ABS_TIME m2_i2 /* set to 1 to use absolute alarm time */
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#define ALRM_TIME_LEFT m2_l1 /* how many ticks were remaining */
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#define ALRM_PROC_NR m2_i1 /* which process wants the alarm? */
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#define ALRM_FLAG_PTR m2_p1 /* virtual address of timeout flag */
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/* Field names for SYS_IRQCTL. */
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#define IRQ_REQUEST m5_c1 /* what to do? */
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# define IRQ_SETPOLICY 1 /* manage a slot of the IRQ table */
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# define IRQ_RMPOLICY 2 /* remove a slot of the IRQ table */
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# define IRQ_ENABLE 3 /* enable interrupts */
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# define IRQ_DISABLE 4 /* disable interrupts */
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#define IRQ_VECTOR m5_c2 /* irq vector */
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#define IRQ_POLICY m5_i1 /* options for IRQCTL request */
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# define IRQ_REENABLE 0x001 /* reenable IRQ line after interrupt */
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# define IRQ_BYTE 0x100 /* byte values */
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# define IRQ_WORD 0x200 /* word values */
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# define IRQ_LONG 0x400 /* long values */
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#define IRQ_PROC_NR m5_i2 /* process number, SELF, NONE */
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#define IRQ_HOOK_ID m5_l3 /* id of irq hook at kernel */
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/* Field names for SYS_SEGCTL. */
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#define SEG_SELECT m4_l1 /* segment selector returned */
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#define SEG_OFFSET m4_l2 /* offset in segment returned */
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#define SEG_PHYS m4_l3 /* physical address of segment */
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#define SEG_SIZE m4_l4 /* segment size */
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#define SEG_INDEX m4_l5 /* segment index in remote map */
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/* Field names for SYS_VIDCOPY. */
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#define VID_REQUEST m4_l1 /* what to do? */
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# define VID_VID_COPY 1 /* request vid_vid_copy() */
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# define MEM_VID_COPY 2 /* request mem_vid_copy() */
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#define VID_SRC_ADDR m4_l2 /* virtual address in memory */
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#define VID_SRC_OFFSET m4_l3 /* offset in video memory */
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#define VID_DST_OFFSET m4_l4 /* offset in video memory */
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#define VID_CP_COUNT m4_l5 /* number of words to be copied */
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/* Field names for SYS_ABORT. */
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#define ABRT_HOW m1_i1 /* RBT_REBOOT, RBT_HALT, etc. */
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#define ABRT_MON_PROC m1_i2 /* process where monitor params are */
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#define ABRT_MON_LEN m1_i3 /* length of monitor params */
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#define ABRT_MON_ADDR m1_p1 /* virtual address of monitor params */
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/* Field names for _UMAP, _VIRCOPY, _PHYSCOPY. */
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#define CP_SRC_SPACE m5_c1 /* T or D space (stack is also D) */
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#define CP_SRC_PROC_NR m5_i1 /* process to copy from */
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#define CP_SRC_ADDR m5_l1 /* address where data come from */
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#define CP_DST_SPACE m5_c2 /* T or D space (stack is also D) */
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#define CP_DST_PROC_NR m5_i2 /* process to copy to */
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#define CP_DST_ADDR m5_l2 /* address where data go to */
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#define CP_NR_BYTES m5_l3 /* number of bytes to copy */
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/* Field names for SYS_VCOPY and SYS_VVIRCOPY. */
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#define VCP_NR_OK m1_i2 /* number of successfull copies */
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#define VCP_VEC_SIZE m1_i3 /* size of copy vector */
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#define VCP_VEC_ADDR m1_p1 /* pointer to copy vector */
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/* Field names for SYS_GETINFO. */
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#define I_REQUEST m7_i3 /* what info to get */
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# define GET_KINFO 0 /* get kernel information structure */
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# define GET_IMAGE 1 /* get system image table */
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# define GET_PROCTAB 2 /* get kernel process table */
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# define GET_RANDOMNESS 3 /* get randomness buffer */
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# define GET_MONPARAMS 4 /* get monitor parameters */
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# define GET_KENV 5 /* get kernel environment string */
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# define GET_IRQHOOKS 6 /* get the IRQ table */
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# define GET_KMESSAGES 7 /* get kernel messages */
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# define GET_PRIVTAB 8 /* get kernel privileges table */
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# define GET_KADDRESSES 9 /* get various kernel addresses */
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# define GET_SCHEDINFO 10 /* get scheduling queues */
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# define GET_PROC 11 /* get process slot if given process */
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# define GET_MACHINE 12 /* get machine information */
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# define GET_LOCKTIMING 13 /* get lock()/unlock() latency timing */
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# define GET_BIOSBUFFER 14 /* get a buffer for BIOS calls */
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#define I_PROC_NR m7_i4 /* calling process */
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#define I_VAL_PTR m7_p1 /* virtual address at caller */
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#define I_VAL_LEN m7_i1 /* max length of value */
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#define I_VAL_PTR2 m7_p2 /* second virtual address */
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#define I_VAL_LEN2 m7_i2 /* second length, or proc nr */
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/* Field names for SYS_TIMES. */
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#define T_PROC_NR m4_l1 /* process to request time info for */
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#define T_USER_TIME m4_l1 /* user time consumed by process */
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#define T_SYSTEM_TIME m4_l2 /* system time consumed by process */
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#define T_CHILD_UTIME m4_l3 /* user time consumed by process' children */
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#define T_CHILD_STIME m4_l4 /* sys time consumed by process' children */
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#define T_BOOT_TICKS m4_l5 /* number of clock ticks since boot time */
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/* Field names for SYS_TRACE, SYS_SVRCTL. */
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#define CTL_PROC_NR m2_i1 /* process number of the caller */
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#define CTL_REQUEST m2_i2 /* server control request */
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#define CTL_MM_PRIV m2_i3 /* privilege as seen by PM */
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#define CTL_ARG_PTR m2_p1 /* pointer to argument */
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#define CTL_ADDRESS m2_l1 /* address at traced process' space */
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#define CTL_DATA m2_l2 /* data field for tracing */
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/* Field names for SYS_KILL, SYS_SIGCTL */
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#define SIG_REQUEST m2_l2 /* PM signal control request */
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#define S_GETSIG 0 /* get pending kernel signal */
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#define S_ENDSIG 1 /* finish a kernel signal */
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#define S_SENDSIG 2 /* POSIX style signal handling */
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#define S_SIGRETURN 3 /* return from POSIX handling */
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#define S_KILL 4 /* servers kills process with signal */
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#define SIG_PROC m2_i1 /* process number for inform */
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#define SIG_NUMBER m2_i2 /* signal number to send */
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#define SIG_FLAGS m2_i3 /* signal flags field */
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#define SIG_MAP m2_l1 /* used by kernel to pass signal bit map */
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#define SIG_CTXT_PTR m2_p1 /* pointer to info to restore signal context */
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/* Field names for SYS_FORK, _EXEC, _EXIT, _NEWMAP. */
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#define PR_PROC_NR m1_i1 /* indicates a (child) process */
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#define PR_PRIORITY m1_i2 /* process priority */
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#define PR_PPROC_NR m1_i2 /* indicates a (parent) process */
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#define PR_PID m1_i3 /* process id at process manager */
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#define PR_STACK_PTR m1_p1 /* used for stack ptr in sys_exec, sys_getsp */
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#define PR_TRACING m1_i3 /* flag to indicate tracing is on/ off */
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#define PR_NAME_PTR m1_p2 /* tells where program name is for dmp */
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#define PR_IP_PTR m1_p3 /* initial value for ip after exec */
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#define PR_MEM_PTR m1_p1 /* tells where memory map is for sys_newmap */
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/* Field names for SYS_INT86 */
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#define INT86_REG86 m1_p1 /* pointer to registers */
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/* Field names for SELECT (FS). */
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#define SEL_NFDS m8_i1
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#define SEL_READFDS m8_p1
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#define SEL_WRITEFDS m8_p2
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#define SEL_ERRORFDS m8_p3
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#define SEL_TIMEOUT m8_p4
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/*===========================================================================*
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* Messages for system management server *
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*===========================================================================*/
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#define SRV_RQ_BASE 0x700
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#define SRV_UP (SRV_RQ_BASE + 0) /* start system service */
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#define SRV_DOWN (SRV_RQ_BASE + 1) /* stop system service */
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#define SRV_STATUS (SRV_RQ_BASE + 2) /* get service status */
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# define SRV_PATH_ADDR m1_p1 /* path of binary */
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# define SRV_PATH_LEN m1_i1 /* length of binary */
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# define SRV_ARGS_ADDR m1_p2 /* arguments to be passed */
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# define SRV_ARGS_LEN m1_i2 /* length of arguments */
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# define SRV_DEV_MAJOR m1_i3 /* major device number */
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# define SRV_PRIV_ADDR m1_p3 /* privileges string */
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# define SRV_PRIV_LEN m1_i3 /* length of privileges */
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/*===========================================================================*
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* Miscellaneous messages used by TTY *
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*===========================================================================*/
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/* Miscellaneous request types and field names, e.g. used by IS server. */
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#define PANIC_DUMPS 97 /* debug dumps at the TTY on RBT_PANIC */
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#define FKEY_CONTROL 98 /* control a function key at the TTY */
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# define FKEY_REQUEST m2_i1 /* request to perform at TTY */
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# define FKEY_MAP 10 /* observe function key */
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# define FKEY_UNMAP 11 /* stop observing function key */
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# define FKEY_EVENTS 12 /* request open key presses */
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# define FKEY_FKEYS m2_l1 /* F1-F12 keys pressed */
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# define FKEY_SFKEYS m2_l2 /* Shift-F1-F12 keys pressed */
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#define DIAGNOSTICS 100 /* output a string without FS in between */
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# define DIAG_PRINT_BUF m1_p1
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# define DIAG_BUF_COUNT m1_i1
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# define DIAG_PROC_NR m1_i2
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#endif /* _MINIX_COM_H */
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