ec24a0798c
The TTY driver now only notifies the IS server about function key event, but does not tell which keys are pressed. The IS servers queries the TTY driver to find out about this.
409 lines
19 KiB
C
Executable File
409 lines
19 KiB
C
Executable File
/*===========================================================================*
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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 SYSTASK -2 /* request system functionality */
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#define KERNEL -1 /* used as source on notify() messages */
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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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/* Magic numbers for controllers. Device driver mapping is dynamic. */
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#define CTRLR(n) (NONE + (n))
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/* User-level 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 IS_PROC_NR 5 /* information server */
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#define TTY 6 /* terminal (TTY) driver */
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#define MEMORY 8 /* memory driver (RAM disk, null, etc.) */
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#define AT_WINI (MEMORY + ENABLE_AT_WINI) /* AT Winchester */
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#define FLOPPY (AT_WINI + ENABLE_FLOPPY) /* floppy disk */
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#define PRINTER (FLOPPY + ENABLE_PRINTER) /* Centronics */
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#define USR8139 (PRINTER + ENABLE_RTL8139) /* Realtek RTL8139 */
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#define FXP (USR8139 + ENABLE_FXP) /* Intel Pro/100 */
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#define INIT_PROC_NR (FXP + 1) /* init -- goes multiuser */
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/* Number of processes contained in the system image. */
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#define IMAGE_SIZE (NR_TASKS + \
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5 + ENABLE_AT_WINI + ENABLE_FLOPPY + \
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ENABLE_PRINTER + ENABLE_RTL8139 + ENABLE_FXP + 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 NOTIFICATION 0x0800 /* flag for notifications */
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# define HARD_INT (NOTIFICATION | 0) /* hardware interrupt */
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# define SYN_ALARM (NOTIFICATION | 1) /* synchronous alarm */
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# define KSIG_PENDING (NOTIFICATION | 2) /* signal(s) pending */
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# define NEW_KMESS (NOTIFICATION | 3) /* new kernel message */
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# define HARD_STOP (NOTIFICATION | 4) /* system shutdown */
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# define DEV_SELECTED (NOTIFICATION | 5) /* select() notification */
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#define NR_NOTIFY_TYPES 6 /* nr of bits in mask */
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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_FLAGS m2_i1
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#define NOTIFY_ARG m2_l1
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/*===========================================================================*
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* Messages for BLOCK and CHARACTER device drivers *
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*===========================================================================*/
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#define CANCEL 0 /* general req to force a task to cancel */
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#define DEV_READ 3 /* fcn code for reading from tty */
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#define DEV_WRITE 4 /* fcn code for writing to tty */
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#define DEV_IOCTL 5 /* fcn code for ioctl */
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#define DEV_OPEN 6 /* fcn code for opening tty */
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#define DEV_CLOSE 7 /* fcn code for closing tty */
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#define DEV_SCATTER 8 /* fcn code for writing from a vector */
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#define DEV_GATHER 9 /* fcn code for reading into a vector */
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#define TTY_SETPGRP 10 /* fcn code for setpgroup */
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#define TTY_EXIT 11 /* a process group leader has exited */
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#define DEV_SELECT 12 /* request select() attention */
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#define SUSPEND -998 /* used in interrupts when tty has no data */
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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 DEVICE 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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/* 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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/* Major and minor device numbers for MEMORY driver. */
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# define MEMORY_MAJOR 1 /* major device for memory devices */
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# define RAM_DEV 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 RANDOM_DEV 5 /* minor device for /dev/(u)random */
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# define URANDOM_DEV RANDOM_DEV
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# define ZERO_DEV 6 /* minor device for /dev/zero */
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#define TTY_MAJOR 4 /* major device no. for ttys */
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#define CTTY_MAJOR 5 /* major device no. for /dev/tty */
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#define INET_MAJOR 7 /* major device no. for inet */
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/* Full device numbers that are special to the boot monitor and FS. */
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# define DEV_RAM 0x0100 /* device number of /dev/ram */
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# define DEV_BOOT 0x0104 /* device number of /dev/boot */
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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. */
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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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/* Message types for data link layer requests. */
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#define DL_WRITE 3
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#define DL_WRITEV 4
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#define DL_READ 5
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#define DL_READV 6
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#define DL_INIT 7
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#define DL_STOP 8
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#define DL_GETSTAT 9
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/* Message type for data link layer replies. */
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#define DL_INIT_REPLY 20
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#define DL_TASK_REPLY 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 SYS_TIMES 0 /* sys_times(proc_nr, bufptr) */
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# define SYS_XIT 1 /* sys_xit(parent, proc) */
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# define SYS_GETSIG 2 /* sys_getsig(proc_nr, sig_map) */
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# define SYS_FORK 4 /* sys_fork(parent, child, pid) */
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# define SYS_NEWMAP 5 /* sys_newmap(proc_nr, map_ptr) */
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# define SYS_ENDSIG 6 /* sys_endsig(proc_nr) */
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# define SYS_EXEC 7 /* sys_exec(proc_nr, new_sp) */
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# define SYS_SIGSEND 8 /* sys_sigsend(proc_nr, ctxt_ptr) */
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# define SYS_ABORT 9 /* sys_abort() */
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# define SYS_KILL 10 /* sys_kill(proc_nr, sig) */
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# define SYS_UMAP 11 /* sys_umap(proc_nr, etc) */
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# define SYS_TRACE 13 /* sys_trace(req,pid,addr,data) */
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# define SYS_SIGNALRM 15 /* sys_signalrm(proc_nr, ticks) */
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# define SYS_SYNCALRM 16 /* sys_syncalrm(proc_nr,exp_time,abs_time) */
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# define SYS_PHYSVCOPY 18 /* sys_physvcopy(vec_ptr, vec_size) */
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# define SYS_SVRCTL 19 /* sys_svrctl(proc_nr, req, argp) */
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# define SYS_SDEVIO 20 /* sys_sdevio(port, proc_nr, buf, count) */
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# define SYS_SIGRETURN 21 /* sys_sigreturn(proc_nr, ctxt_ptr, flags) */
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# define SYS_GETINFO 22 /* sys_getinfo(what, whereto) */
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# define SYS_DEVIO 23 /* sys_devio(port, value) */
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# define SYS_VDEVIO 24 /* sys_vdevio(buf_ptr, nr_ports) */
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# define SYS_IRQCTL 25 /* sys_irqctl() */
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# define SYS_IOPENABLE 27 /* sys_enable_iop() */
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# define SYS_SEGCTL 28 /* sys_segctl(*idx, *seg, *off, phys, size) */
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# define SYS_EXIT 29 /* sys_exit(status) */
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# define SYS_VIRCOPY 30 /* sys_vircopy(src,seg,addr,dst,seg,addr,cnt) */
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# define SYS_PHYSCOPY 31 /* sys_physcopy(src_addr,dst_addr,count) */
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# define SYS_VIRVCOPY 32 /* sys_virvcopy(vec_ptr, vec_size) */
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# define SYS_PHYSZERO 33 /* sys_physzero(addr,count) */
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#define NR_SYS_CALLS 34 /* number of system calls */
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/* Field names for SYS_SEGCTL. */
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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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/* Names of message field and paramaters for SYS_EXIT request. */
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#define EXIT_STATUS m2_i1 /* zero for normal exit, non-zero else */
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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_SRC_PROC m1_i1 /* process to copy from */
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#define VCP_DST_PROC m1_i2 /* process to copy to */
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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_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 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_KEY_PTR m7_p2 /* virtual address of key to lookup */
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#define I_KEY_LEN m7_i2 /* length of key to lookup */
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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, _XIT, _GETSP, _GETMAP, _NEWMAP */
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#define PR_PROC_NR m1_i1 /* indicates a (child) process */
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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_PHYSZERO */
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#define PZ_MEM_PTR m1_p1 /* base */
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#define PZ_COUNT m1_i1 /* count */
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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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* Miscellaneous messages, mainly used by IS *
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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_PRESSED 99 /* notify process of function key event */
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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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