📄 com.h
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include/minix/com.h
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03500 /* System calls. */
03501 #define SEND 1 /* function code for sending messages */
03502 #define RECEIVE 2 /* function code for receiving messages */
03503 #define BOTH 3 /* function code for SEND + RECEIVE */
03504 #define ANY (NR_PROCS+100) /* receive(ANY, buf) accepts from any source */
03505
03506 /* Task numbers, function codes and reply codes. */
03507
03508 /* The values of several task numbers depend on whether they or other tasks
03509 * are enabled. They are defined as (PREVIOUS_TASK - ENABLE_TASK) in general.
03510 * ENABLE_TASK is either 0 or 1, so a task either gets a new number, or gets
03511 * the same number as the previous task and is further unused.
03512 * The TTY task must always have the most negative number so that it is
03513 * initialized first. Many of the TTY function codes are shared with other
03514 * tasks.
03515 */
03516
03517 #define TTY (DL_ETH - 1)
03518 /* terminal I/O class */
03519 # define CANCEL 0 /* general req to force a task to cancel */
03520 # define HARD_INT 2 /* fcn code for all hardware interrupts */
03521 # define DEV_READ 3 /* fcn code for reading from tty */
03522 # define DEV_WRITE 4 /* fcn code for writing to tty */
03523 # define DEV_IOCTL 5 /* fcn code for ioctl */
03524 # define DEV_OPEN 6 /* fcn code for opening tty */
03525 # define DEV_CLOSE 7 /* fcn code for closing tty */
03526 # define SCATTERED_IO 8 /* fcn code for multiple reads/writes */
03527 # define TTY_SETPGRP 9 /* fcn code for setpgroup */
03528 # define TTY_EXIT 10 /* a process group leader has exited */
03529 # define OPTIONAL_IO 16 /* modifier to DEV_* codes within vector */
03530 # define SUSPEND -998 /* used in interrupts when tty has no data */
03531
03532 #define DL_ETH (CDROM - ENABLE_NETWORKING)
03533 /* networking task */
03534
03535 /* Message type for data link layer reqests. */
03536 # define DL_WRITE 3
03537 # define DL_WRITEV 4
03538 # define DL_READ 5
03539 # define DL_READV 6
03540 # define DL_INIT 7
03541 # define DL_STOP 8
03542 # define DL_GETSTAT 9
03543
03544 /* Message type for data link layer replies. */
03545 # define DL_INIT_REPLY 20
03546 # define DL_TASK_REPLY 21
03547
03548 # define DL_PORT m2_i1
03549 # define DL_PROC m2_i2
03550 # define DL_COUNT m2_i3
03551 # define DL_MODE m2_l1
03552 # define DL_CLCK m2_l2
03553 # define DL_ADDR m2_p1
03554 # define DL_STAT m2_l1
03555
03556 /* Bits in 'DL_STAT' field of DL replies. */
03557 # define DL_PACK_SEND 0x01
03558 # define DL_PACK_RECV 0x02
03559 # define DL_READ_IP 0x04
03560
03561 /* Bits in 'DL_MODE' field of DL requests. */
03562 # define DL_NOMODE 0x0
03563 # define DL_PROMISC_REQ 0x2
03564 # define DL_MULTI_REQ 0x4
03565 # define DL_BROAD_REQ 0x8
03566
03567 # define NW_OPEN DEV_OPEN
03568 # define NW_CLOSE DEV_CLOSE
03569 # define NW_READ DEV_READ
03570 # define NW_WRITE DEV_WRITE
03571 # define NW_IOCTL DEV_IOCTL
03572 # define NW_CANCEL CANCEL
03573
03574 #define CDROM (AUDIO - ENABLE_CDROM)
03575 /* cd-rom device task */
03576
03577 #define AUDIO (MIXER - ENABLE_AUDIO)
03578 #define MIXER (SCSI - ENABLE_AUDIO)
03579 /* audio & mixer device tasks */
03580
03581 #define SCSI (WINCHESTER - ENABLE_SCSI)
03582 /* scsi device task */
03583
03584 #define WINCHESTER (SYN_ALRM_TASK - ENABLE_WINI)
03585 /* winchester (hard) disk class */
03586
03587 #define SYN_ALRM_TASK -8 /* task to send CLOCK_INT messages */
03588
03589 #define IDLE -7 /* task to run when there's nothing to run */
03590
03591 #define PRINTER -6 /* printer I/O class */
03592
03593 #define FLOPPY -5 /* floppy disk class */
03594
03595 #define MEM -4 /* /dev/ram, /dev/(k)mem and /dev/null class */
03596 # define NULL_MAJOR 1 /* major device for /dev/null */
03597 # define RAM_DEV 0 /* minor device for /dev/ram */
03598 # define MEM_DEV 1 /* minor device for /dev/mem */
03599 # define KMEM_DEV 2 /* minor device for /dev/kmem */
03600 # define NULL_DEV 3 /* minor device for /dev/null */
03601
03602 #define CLOCK -3 /* clock class */
03603 # define SET_ALARM 1 /* fcn code to CLOCK, set up alarm */
03604 # define GET_TIME 3 /* fcn code to CLOCK, get real time */
03605 # define SET_TIME 4 /* fcn code to CLOCK, set real time */
03606 # define GET_UPTIME 5 /* fcn code to CLOCK, get uptime */
03607 # define SET_SYNC_AL 6 /* fcn code to CLOCK, set up alarm which */
03608 /* times out with a send */
03609 # define REAL_TIME 1 /* reply from CLOCK: here is real time */
03610 # define CLOCK_INT HARD_INT
03611 /* this code will only be sent by */
03612 /* SYN_ALRM_TASK to a task that requested a */
03613 /* synchronous alarm */
03614
03615 #define SYSTASK -2 /* internal functions */
03616 # define SYS_XIT 1 /* fcn code for sys_xit(parent, proc) */
03617 # define SYS_GETSP 2 /* fcn code for sys_sp(proc, &new_sp) */
03618 # define SYS_OLDSIG 3 /* fcn code for sys_oldsig(proc, sig) */
03619 # define SYS_FORK 4 /* fcn code for sys_fork(parent, child) */
03620 # define SYS_NEWMAP 5 /* fcn code for sys_newmap(procno, map_ptr) */
03621 # define SYS_COPY 6 /* fcn code for sys_copy(ptr) */
03622 # define SYS_EXEC 7 /* fcn code for sys_exec(procno, new_sp) */
03623 # define SYS_TIMES 8 /* fcn code for sys_times(procno, bufptr) */
03624 # define SYS_ABORT 9 /* fcn code for sys_abort() */
03625 # define SYS_FRESH 10 /* fcn code for sys_fresh() (Atari only) */
03626 # define SYS_KILL 11 /* fcn code for sys_kill(proc, sig) */
03627 # define SYS_GBOOT 12 /* fcn code for sys_gboot(procno, bootptr) */
03628 # define SYS_UMAP 13 /* fcn code for sys_umap(procno, etc) */
03629 # define SYS_MEM 14 /* fcn code for sys_mem() */
03630 # define SYS_TRACE 15 /* fcn code for sys_trace(req,pid,addr,data) */
03631 # define SYS_VCOPY 16 /* fnc code for sys_vcopy(src_proc, dest_proc,
03632 vcopy_s, vcopy_ptr) */
03633 # define SYS_SENDSIG 17 /* fcn code for sys_sendsig(&sigmsg) */
03634 # define SYS_SIGRETURN 18 /* fcn code for sys_sigreturn(&sigmsg) */
03635 # define SYS_ENDSIG 19 /* fcn code for sys_endsig(procno) */
03636 # define SYS_GETMAP 20 /* fcn code for sys_getmap(procno, map_ptr) */
03637
03638 #define HARDWARE -1 /* used as source on interrupt generated msgs*/
03639
03640 /* Names of message fields for messages to CLOCK task. */
03641 #define DELTA_TICKS m6_l1 /* alarm interval in clock ticks */
03642 #define FUNC_TO_CALL m6_f1 /* pointer to function to call */
03643 #define NEW_TIME m6_l1 /* value to set clock to (SET_TIME) */
03644 #define CLOCK_PROC_NR m6_i1 /* which proc (or task) wants the alarm? */
03645 #define SECONDS_LEFT m6_l1 /* how many seconds were remaining */
03646
03647 /* Names of message fields used for messages to block and character tasks. */
03648 #define DEVICE m2_i1 /* major-minor device */
03649 #define PROC_NR m2_i2 /* which (proc) wants I/O? */
03650 #define COUNT m2_i3 /* how many bytes to transfer */
03651 #define REQUEST m2_i3 /* ioctl request code */
03652 #define POSITION m2_l1 /* file offset */
03653 #define ADDRESS m2_p1 /* core buffer address */
03654
03655 /* Names of message fields for messages to TTY task. */
03656 #define TTY_LINE DEVICE /* message parameter: terminal line */
03657 #define TTY_REQUEST COUNT /* message parameter: ioctl request code */
03658 #define TTY_SPEK POSITION /* message parameter: ioctl speed, erasing */
03659 #define TTY_FLAGS m2_l2 /* message parameter: ioctl tty mode */
03660 #define TTY_PGRP m2_i3 /* message parameter: process group */
03661
03662 /* Names of the message fields for QIC 02 status reply from tape driver */
03663 #define TAPE_STAT0 m2_l1
03664 #define TAPE_STAT1 m2_l2
03665
03666 /* Names of messages fields used in reply messages from tasks. */
03667 #define REP_PROC_NR m2_i1 /* # of proc on whose behalf I/O was done */
03668 #define REP_STATUS m2_i2 /* bytes transferred or error number */
03669
03670 /* Names of fields for copy message to SYSTASK. */
03671 #define SRC_SPACE m5_c1 /* T or D space (stack is also D) */
03672 #define SRC_PROC_NR m5_i1 /* process to copy from */
03673 #define SRC_BUFFER m5_l1 /* virtual address where data come from */
03674 #define DST_SPACE m5_c2 /* T or D space (stack is also D) */
03675 #define DST_PROC_NR m5_i2 /* process to copy to */
03676 #define DST_BUFFER m5_l2 /* virtual address where data go to */
03677 #define COPY_BYTES m5_l3 /* number of bytes to copy */
03678
03679 /* Field names for accounting, SYSTASK and miscellaneous. */
03680 #define USER_TIME m4_l1 /* user time consumed by process */
03681 #define SYSTEM_TIME m4_l2 /* system time consumed by process */
03682 #define CHILD_UTIME m4_l3 /* user time consumed by process' children */
03683 #define CHILD_STIME m4_l4 /* sys time consumed by process' children */
03684 #define BOOT_TICKS m4_l5 /* number of clock ticks since boot time */
03685
03686 #define PROC1 m1_i1 /* indicates a process */
03687 #define PROC2 m1_i2 /* indicates a process */
03688 #define PID m1_i3 /* process id passed from MM to kernel */
03689 #define STACK_PTR m1_p1 /* used for stack ptr in sys_exec, sys_getsp */
03690 #define PR m6_i1 /* process number for sys_sig */
03691 #define SIGNUM m6_i2 /* signal number for sys_sig */
03692 #define FUNC m6_f1 /* function pointer for sys_sig */
03693 #define MEM_PTR m1_p1 /* tells where memory map is for sys_newmap */
03694 #define NAME_PTR m1_p2 /* tells where program name is for dmp */
03695 #define IP_PTR m1_p3 /* initial value for ip after exec */
03696 #define SIG_PROC m2_i1 /* process number for inform */
03697 #define SIG_MAP m2_l1 /* used by kernel for passing signal bit map */
03698 #define SIG_MSG_PTR m1_i1 /* pointer to info to build sig catch stack */
03699 #define SIG_CTXT_PTR m1_p1 /* pointer to info to restore signal context */⌨️ 快捷键说明
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