/* System calls. */ #define SEND 1 /* function code for sending messages */ #define RECEIVE 2 /* function code for receiving messages */ #define BOTH 3 /* function code for SEND + RECEIVE */ #define ANY (NR_PROCS+100) /* receive(ANY, buf) accepts from any source */ /* Task numbers, function codes and reply codes. */ #define TTY -NR_TASKS /* terminal I/O class */ # define TTY_READ 3 /* fcn code for reading from tty */ # define TTY_WRITE 4 /* fcn code for writing to tty */ # define TTY_IOCTL 5 /* fcn code for ioctl */ # define TTY_SETPGRP 6 /* fcn code for setpgrp */ # define TTY_OPEN 7 /* fcn code for opening tty */ # define TTY_CLOSE 8 /* fcn code for closing tty */ # define SUSPEND -998 /* used in interrupts when tty has no data */ #ifdef AM_KERNEL #define AMOEBA #endif #ifdef AMOEBA /* There are AM_NTASK copies of the amoeba kernel task. * If you change AM_NTASKS be sure to adjust kernel/table.c and fs/table.c */ #define AM_NTASKS 4 /* number of kernel tasks of this class */ #define AMINT_CLASS (TTY+1) /* Amoeba event handler */ #define AMOEBA_CLASS (AMINT_CLASS+AM_NTASKS) /* transaction handlers */ # define ETHER_ARRIV 1 /* fcn code for packet arrival */ # define AM_TRANS 2 /* amoeba transaction */ # define AM_GETREQ 3 /* amoeba getrequest */ # define AM_PUTREP 4 /* amoeba putrep */ # define AM_REVIVE 6 /* used by kernel task to revive luser task */ # define AM_TIMEOUT 8 /* used to talk to clock task */ # define AM_PUTSIG 9 /* when the luser hits the DEL ! */ # define AM_TASK_DIED 10 /* sent if task died during a transaction */ #else /* if AMOEBA not defined */ #define AMOEBA_CLASS TTY #endif /* AMOEBA */ /* * New class definitions should go here and should be defined relative * to AMOEBA_CLASS (ie. as AMOEBA_CLASS+n, for the nth task added). */ #define IDLE (AMOEBA_CLASS+1) /* task to run when there's nothing to run */ #define PRINTER -7 /* printer I/O class */ /* The printer uses the same commands as TTY. */ #define WINCHESTER -6 /* winchester (hard) disk class */ #define FLOPPY -5 /* floppy disk class */ # define DISK_READ 3 /* fcn code to DISK (must equal TTY_READ) */ # define DISK_WRITE 4 /* fcn code to DISK (must equal TTY_WRITE) */ # define DISK_IOCTL 5 /* fcn code for setting up RAM disk */ # define SCATTERED_IO 6 /* fcn code for multiple reads/writes */ # define OPTIONAL_IO 16 /* modifier to DISK_* codes within vector */ #define MEM -4 /* /dev/ram, /dev/(k)mem and /dev/null class */ # define RAM_DEV 0 /* minor device for /dev/ram */ # define MEM_DEV 1 /* minor device for /dev/mem */ # define KMEM_DEV 2 /* minor device for /dev/kmem */ # define NULL_DEV 3 /* minor device for /dev/null */ #if (CHIP == INTEL) # define PORT_DEV 4 /* minor device for /dev/port */ #endif #define CLOCK -3 /* clock class */ # define SET_ALARM 1 /* fcn code to CLOCK, set up alarm */ # define GET_TIME 3 /* fcn code to CLOCK, get real time */ # define SET_TIME 4 /* fcn code to CLOCK, set real time */ # define REAL_TIME 1 /* reply from CLOCK: here is real time */ #define SYSTASK -2 /* internal functions */ # define SYS_XIT 1 /* fcn code for sys_xit(parent, proc) */ # define SYS_GETSP 2 /* fcn code for sys_sp(proc, &new_sp) */ # define SYS_SIG 3 /* fcn code for sys_sig(proc, sig) */ # define SYS_FORK 4 /* fcn code for sys_fork(parent, child) */ # define SYS_NEWMAP 5 /* fcn code for sys_newmap(procno, map_ptr) */ # define SYS_COPY 6 /* fcn code for sys_copy(ptr) */ # define SYS_EXEC 7 /* fcn code for sys_exec(procno, new_sp) */ # define SYS_TIMES 8 /* fcn code for sys_times(procno, bufptr) */ # define SYS_ABORT 9 /* fcn code for sys_abort() */ # define SYS_FRESH 10 /* fcn code for sys_fresh() (Atari only) */ # define SYS_KILL 11 /* fcn code for sys_kill(proc, sig) */ # define SYS_GBOOT 12 /* fcn code for sys_gboot(procno, bootptr) */ # define SYS_UMAP 13 /* fcn code for sys_umap(procno, etc) */ # define SYS_MEM 14 /* fcn code for sys_mem() */ # define SYS_TRACE 15 /* fcn code for sys_trace(req,pid,addr,data) */ #define HARDWARE -1 /* used as source on interrupt generated msgs*/ /* Names of message fields for messages to CLOCK task. */ #define DELTA_TICKS m6_l1 /* alarm interval in clock ticks */ #define FUNC_TO_CALL m6_f1 /* pointer to function to call */ #define NEW_TIME m6_l1 /* value to set clock to (SET_TIME) */ #define CLOCK_PROC_NR m6_i1 /* which proc (or task) wants the alarm? */ #define SECONDS_LEFT m6_l1 /* how many seconds were remaining */ /* Names of message fields used for messages to block and character tasks. */ #define DEVICE m2_i1 /* major-minor device */ #define PROC_NR m2_i2 /* which (proc) wants I/O? */ #define COUNT m2_i3 /* how many bytes to transfer */ #define POSITION m2_l1 /* file offset */ #define ADDRESS m2_p1 /* core buffer address */ /* Names of message fields for messages to TTY task. */ #define TTY_LINE m2_i1 /* message parameter: terminal line */ #define TTY_REQUEST m2_i3 /* message parameter: ioctl request code */ #define TTY_SPEK m2_l1 /* message parameter: ioctl speed, erasing */ #define TTY_FLAGS m2_l2 /* message parameter: ioctl tty mode */ #define TTY_PGRP m2_i3 /* message parameter: process group */ /* Names of messages fields used in reply messages from tasks. */ #define REP_PROC_NR m2_i1 /* # of proc on whose behalf I/O was done */ #define REP_STATUS m2_i2 /* bytes transferred or error number */ /* Names of fields for copy message to SYSTASK. */ #define SRC_SPACE m5_c1 /* T or D space (stack is also D) */ #define SRC_PROC_NR m5_i1 /* process to copy from */ #define SRC_BUFFER m5_l1 /* virtual address where data come from */ #define DST_SPACE m5_c2 /* T or D space (stack is also D) */ #define DST_PROC_NR m5_i2 /* process to copy to */ #define DST_BUFFER m5_l2 /* virtual address where data go to */ #define COPY_BYTES m5_l3 /* number of bytes to copy */ /* Field names for accounting, SYSTASK and miscellaneous. */ #define USER_TIME m4_l1 /* user time consumed by process */ #define SYSTEM_TIME m4_l2 /* system time consumed by process */ #define CHILD_UTIME m4_l3 /* user time consumed by process' children */ #define CHILD_STIME m4_l4 /* sys time consumed by process' children */ #define PROC1 m1_i1 /* indicates a process */ #define PROC2 m1_i2 /* indicates a process */ #define PID m1_i3 /* process id passed from MM to kernel */ #define STACK_PTR m1_p1 /* used for stack ptr in sys_exec, sys_getsp */ #define PR m6_i1 /* process number for sys_sig */ #define SIGNUM m6_i2 /* signal number for sys_sig */ #define FUNC m6_f1 /* function pointer for sys_sig */ #define MEM_PTR m1_p1 /* tells where memory map is for sys_newmap */ #define CANCEL 0 /* general request to force a task to cancel */ #define SIG_MAP m1_i2 /* used by kernel for passing signal bit map */ #ifdef AMOEBA /* Names of message fields for amoeba tasks */ #define AM_OP m2_i1 /* one of the above operators */ #define AM_PROC_NR m2_i2 /* process # of proc doing operation */ #define AM_COUNT m2_i3 /* size of buffer for operation */ #define AM_ADDRESS m2_p1 /* address of buffer for operation */ /* For communication between MM and AMOEBA_CLASS kernel tasks */ #define AM_STATUS m2_i3 /* same use as REP_STATUS but for amoeba */ #define AM_FREE_IT m2_l1 /* 1=not a getreq, 0=is a getreq */ /* Special for passing a physical address from the ethernet driver */ #define AM_PADDR m2_l1 /* to the transaction layer */ #endif /* AMOEBA */ #define HARD_INT 2 /* fcn code for all hardware interrupts */