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Changes for asynchronous interface to character specials.

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Removed DEV_SEL_WATCH. Added SYS_MAPDMAx. New message type (DIAG_REPL) for
replies to DIAGNOSTICS(_S).
This commit is contained in:
Philip Homburg 2008-02-21 15:57:35 +00:00
parent 698df384c3
commit 82cb46af0a
1 changed files with 10 additions and 2 deletions
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12
include/minix/com.h
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@ -154,6 +154,7 @@
#define TTY_EXIT (DEV_RQ_BASE + 11) /* process group leader exited */
#define DEV_SELECT (DEV_RQ_BASE + 12) /* request select() attention */
#define DEV_STATUS (DEV_RQ_BASE + 13) /* request driver status */
#define DEV_REOPEN (DEV_RQ_BASE + 14) /* reopen a minor device */
#define DEV_READ_S (DEV_RQ_BASE + 20) /* (safecopy) read from minor */
#define DEV_WRITE_S (DEV_RQ_BASE + 21) /* (safecopy) write to minor */
@ -166,6 +167,10 @@
#define DEV_REVIVE (DEV_RS_BASE + 2) /* driver revives process */
#define DEV_IO_READY (DEV_RS_BASE + 3) /* selected device ready */
#define DEV_NO_STATUS (DEV_RS_BASE + 4) /* empty status reply */
#define DEV_REOPEN_REPL (DEV_RS_BASE + 5) /* reply to DEV_REOPEN */
#define DEV_CLOSE_REPL (DEV_RS_BASE + 6) /* reply to DEV_CLOSE */
#define DEV_SEL_REPL1 (DEV_RS_BASE + 7) /* first reply to DEV_SELECT */
#define DEV_SEL_REPL2 (DEV_RS_BASE + 8) /* (opt) second reply to DEV_SELECT */
/* Field names for messages to block and character device drivers. */
#define DEVICE m2_i1 /* major-minor device */
@ -180,7 +185,6 @@
/* Field names for DEV_SELECT messages to device drivers. */
#define DEV_MINOR m2_i1 /* minor device */
#define DEV_SEL_OPS m2_i2 /* which select operations are requested */
#define DEV_SEL_WATCH m2_i3 /* request notify if no operations are ready */
/* Field names used in reply messages from tasks. */
#define REP_ENDPT m2_i1 /* # of proc on whose behalf I/O was done */
@ -313,7 +317,9 @@
# define SYS_STIME (KERNEL_CALL + 39) /* sys_stime() */
#define NR_SYS_CALLS 40 /* number of system calls */
# define SYS_MAPDMAx (KERNEL_CALL + 42) /* sys_mapdmax() */
#define NR_SYS_CALLS 43 /* number of system calls */
/* Pseudo call for use in kernel/table.c. */
#define SYS_ALL_CALLS (NR_SYS_CALLS)
@ -616,6 +622,8 @@
#define GET_KMESS_S (DIAG_BASE+4) /* get kmess from TTY */
# define GETKM_GRANT m1_i1
#define DIAG_REPL (DIAG_BASE+0x80+0) /* reply to DIAGNOSTICS(_S) */
#define PM_BASE 0x900
#define PM_GET_WORK (PM_BASE + 1) /* Get work from PM */
#define PM_IDLE (PM_BASE + 2) /* PM doesn't have any more work */